CN116374027A - Tracked chassis and tracked vehicles - Google Patents

Abstract

The present disclosure provides a tracked chassis and a tracked vehicle. The crawler chassis includes: a frame; the walking part is arranged on the frame to drive the frame to walk, and comprises a supporting wheel and a crawler belt, wherein an inserting space for inserting fork teeth of a forklift is arranged among the supporting wheel, the frame and the crawler belt; and the crawler anti-derailment device comprises at least one crawler limiting part, wherein the crawler limiting part is movably connected to the frame, the crawler limiting part is provided with a first working position and a second working position, the crawler limiting part limits the crawler to move along the left and right directions of the crawler chassis at the first working position, and the crawler limiting part avoids the plug-in space at the second working position. A tracked vehicle comprises the aforementioned tracked chassis. The utility model provides a crawler chassis and crawler vehicle can improve crawler vehicle fork dress and transport the time problem that track spacing portion and fork dress hole produce the interference.

Description

Tracked chassis and tracked vehicles

technical field

The present disclosure relates to the field of engineering machinery, in particular to a crawler chassis and a crawler vehicle.

Background technique

Scissor mobile elevating work platform, commonly known as scissor forklift, is a special equipment for vertical lifting and wide indoor and outdoor use for high-altitude operations. It can be widely used in stations, docks, bridges, halls, indoor and outdoor mechanical installation, equipment maintenance and construction of factories. maintainance.

Crawler-type scissors belong to the subdivision category of scissors. They are equipped with rubber tracks. They have the advantages of good road passability and strong off-road ability, and can easily cross small trenches, steps and obstacles on the construction site; Small, not easy to fall into the soft ground, not easy to crush the ground; can realize in situ rotation, flexible steering, suitable for turning around in narrow terrain. Therefore, crawler scissor forklifts are mostly used for construction and maintenance of non-hardened sites such as airport stations, railway subways, and workshop exhibition halls, agricultural and garden sites such as vegetable greenhouse construction, agricultural picking, and power grid lines and communications on field muddy ground such as power substations. Line installation and construction, etc.

The problem of derailment is a common fault of crawler chassis, so it is necessary to arrange anti-derailment devices. Most of the conventional anti-derailment devices are fixed and assembled on the track beam to limit the track. Forklift trucks are usually used for forklifts and crawler belts when transferring. The stopper will interfere with the fork hole.

Contents of the invention

The purpose of the present disclosure is to provide a crawler chassis and a crawler vehicle, so as to solve the problem of interference between the crawler limit part and the fork hole when the crawler vehicle is loaded and transported by fork.

A first aspect of the present disclosure provides a tracked chassis comprising:

frame;

The running part is installed on the vehicle frame to drive the vehicle frame to walk. The running part includes rollers and crawlers. Between the rollers, the vehicle frame and the crawlers there is a forklift the insertion space into which the tines are inserted; and

The crawler anti-derailment device includes at least one crawler stopper, the crawler stopper is movably connected to the vehicle frame, the crawler stopper has a first working position and a second working position, and the track stopper has a first working position and a second working position. In the first working position, the crawler belt limiting part restricts the crawler belt from moving in the left and right direction of the crawler chassis, and in the second working position, the crawler belt limiting part avoids the insertion space.

According to some embodiments of the present disclosure, at least one track limiting portion is rotatably connected to the vehicle frame along an axis in the left-right direction of the tracked chassis.

According to some embodiments of the present disclosure, the crawler anti-derailment device includes a driving component that is drivingly connected to the crawler stopper and is configured to: drive the crawler stopper from the first working position switch to the second working position, and/or drive the track limiter to switch from the second working position to the first working position.

According to some embodiments of the present disclosure, the driving component includes:

A telescopic component, one end of the telescopic direction is hinged to the vehicle frame, and the other end is hinged to the crawler limiter, and the telescopic component is configured to switch the working position of the crawler limiter by changing its own length; and/or or

The first handle is arranged on the track limiting part and is configured to drive the track limiting part to switch the working position of the track limiting part.

According to some embodiments of the present disclosure, the track derailment prevention device includes a locking component configured to fix the crawler limiter on the vehicle frame so that the track limiter remains in the first working position and/or in the second working position.

According to some embodiments of the present disclosure,

The track limiter is provided with a first through hole and/or a second through hole, the vehicle frame is provided with a first pin hole and a second pin hole, and the first pin hole and the second pin hole distributed along the up and down direction of the crawler chassis;

The locking component includes a pin, and the pin passes through the first through hole and is mated with the first pin hole, so that the track limiter is kept at the first working position, and/or, The pin passes through the second through hole and is matedly connected with the second pin hole, so that the track limiting part is kept at the second working position.

According to some embodiments of the present disclosure,

The bolt includes a bolt body and a second handle disposed at the first end of the bolt body, at least a part of the second handle is located radially outward of the bolt body;

The track anti-derailment device also includes a stopper, the stopper is detachably installed on the second end of the bolt body, and in the state where the stopper is installed on the second end of the bolt body, the stopper At least a portion of is located radially outward of the bolt body.

According to some embodiments of the present disclosure, the crawler limit portion has an insertion end, and the crawler is provided with a limit groove extending in a direction perpendicular to the left-right direction of the crawler chassis. In the first working position, the The insertion end is inserted into the limiting groove, and in the second working position, the insertion end is separated from the limiting groove.

According to some embodiments of the present disclosure, rounded corners are provided at the junction of the bottom surface and the side surface of the insertion end.

According to some embodiments of the present disclosure, the at least one track limiting portion includes a first track limiting portion and a second track limiting portion, and the first track limiting portion and the second track limiting portion are The front and rear directions of the tracked chassis are arranged.

A second aspect of the present disclosure provides a tracked vehicle comprising the tracked chassis of the first aspect of the present disclosure.

Based on the crawler chassis provided by the present disclosure, the crawler limiter can be switched between the first working position and the second working position to realize displacement. In the first working position of the crawler limiter, the crawler anti-derailment device is in the attitude of restricting the left and right displacement of the crawler, and the crawler can reliably walk under the limit action of the crawler limiter without derailment; In the second working position, the crawler anti-derailment device is in a posture of avoiding the insertion space, and the crawler chassis can be transferred by inserting the tines of the forklift into the insertion space. The tracked vehicle provided by the present disclosure has the advantages of the aforementioned tracked chassis.

Other features of the present disclosure and advantages thereof will become apparent through the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings.

Description of drawings

The drawings described here are used to provide a further understanding of the present disclosure, and constitute a part of the present application. The schematic embodiments of the present disclosure and their descriptions are used to explain the present disclosure, and do not constitute improper limitations to the present disclosure. In the attached picture:

Fig. 1 is a structural schematic diagram of a crawler chassis according to some embodiments of the present disclosure, wherein the crawler limiter is in a first working position.

Fig. 2 is a schematic cross-sectional structure diagram of a crawler chassis at position AA of some embodiments of the present disclosure.

Fig. 3 is a structural schematic diagram of a crawler chassis according to some embodiments of the present disclosure, wherein the crawler limiter is in a second working position.

Fig. 4 is a schematic structural view of a crawler anti-derailment device of a crawler chassis according to some embodiments of the present disclosure.

Fig. 5 is a schematic structural view of the base of the crawler anti-derailment device shown in Fig. 1 .

Fig. 6 is a schematic structural view of the first crawler limit portion of the crawler anti-derailment device shown in Fig. 1 .

Fig. 7 is a schematic structural view of the second crawler limit portion of the crawler anti-derailment device shown in Fig. 1 .

Fig. 8 is a schematic structural diagram of a frame of a crawler chassis according to some embodiments of the present disclosure.

Fig. 9 is a schematic structural view of guide wheels of a crawler chassis according to some embodiments of the present disclosure.

Fig. 10 is a schematic structural view of the rollers of the crawler chassis of some embodiments of the present disclosure.

Among Fig. 1 to Fig. 10, each reference sign represents respectively:

1. Track anti-derailment device; 11. Base; 111. Bottom plate; 112. Round tube; 113. First rib; The second rib; 12, telescopic parts; 13A, the first track limiter; 131A, the first hinge seat of the first track limiter; 132A, the top plate of the first track limiter; 133A, the first track limiter 134A, the third rib plate of the first track limiter; 135A, the vertical plate of the first track limiter; 1351A, the first through hole of the first track limiter; 1352A, The second through hole of the first track limiter; 136A, the bushing of the first track limiter; 137A, the plate of the first track limiter; 1371A, the fillet of the first track limiter; 138A, The first handle of the first track limiter; 13B, the second track limiter; 131B, the first hinge seat of the second track limiter; 132B, the top plate of the second track limiter; 133B, the second track limiter 134B, the third rib plate of the second track limiter; 135B, the vertical plate of the second track limiter; 1351B, the first through hole of the second track limiter; 1352B, The second through hole of the second track limiter; 136B, the bushing of the second track limiter; 137B, the plate of the second track limiter; 1371B, the fillet of the second track limiter; 138B, The first handle of the second track limiting part; 14, the blocking piece; 15, the latch; 151, the second handle; 16, the retaining ring;

2, vehicle frame; 21, tensioning device mounting seat; 22, roller mounting seat; 221, the first plane; 23A, the first pin hole plate; 231A, the first pin hole of the first pin hole plate; 232A, The second pin hole of the first pin hole plate; 23B, the second pin hole plate; 231B, the first pin hole of the second pin hole plate; 232B, the second pin hole of the second pin hole plate; 24, base installation Seat; 241, the second threaded hole; 25, the chute; 26, the frame body; 27, the mounting hole of the traveling motor;

3. Guide wheel; 31. Guide wheel body; 32. Guide wheel shaft; 321. Second plane; 322. Slide plate;

4. Tensioning device; 41. Tensioning bolt; 42. Tensioning nut;

5, roller; 51, roller body; 52, roller shaft; 521, third plane; 522, step; 523, external thread; 524, fixed pin hole;

6, track; 61, limit groove; 611, limit groove bottom; 612, limit groove side;

7. Drive wheel;

8. Walking motor;

9. Fixed nut;

10. Cotter pin.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

Relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description. In all examples shown and discussed herein, any specific values should be construed as illustrative only, and not as limiting. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

In the description of the present disclosure, it should be understood that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing corresponding components. meaning, and therefore cannot be construed as limiting the scope of protection of the present disclosure.

In the description of the present disclosure, it should be understood that orientation words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" etc. indicate the orientation Or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description. In the absence of a contrary statement, these orientation words do not indicate or imply the device or element referred to Must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present disclosure; the orientation words "inside and outside" refer to inside and outside relative to the outline of each part itself.

Referring to FIGS. 1 to 10 , some embodiments of the present disclosure provide a crawler chassis, including a vehicle frame 2 , a running part and a crawler anti-derailment device 1 .

The walking part is installed on the vehicle frame 2 to drive the vehicle frame 2 to walk. The running part includes a roller 5 and a crawler 6, and there is an insertion space H between the roller 5, the vehicle frame 2 and the crawler 6 for inserting the tines of a forklift.

The crawler anti-derailment device 1 includes at least one crawler stopper, which is movably connected to the vehicle frame 2. The crawler stopper has a first working position and a second working position. In the first working position, the crawler stopper The bit portion restricts the crawler belt 6 from moving in the left and right direction of the crawler chassis, and in the second working position, the crawler belt limiting portion avoids the insertion space H.

In FIGS. 1 to 10 , the x direction represents the left-right direction of the crawler chassis, the y direction represents the front-rear direction of the crawler chassis, and the z direction represents the up-down direction of the crawler chassis.

Based on the crawler chassis provided by the embodiments of the present disclosure, the crawler limiter can be switched between the first working position and the second working position to achieve displacement. In the first working position of the crawler limiter, the crawler anti-derailment device is in the attitude of restricting the left and right displacement of the crawler, and the crawler can reliably walk under the limit action of the crawler limiter without derailment; In the second working position, the crawler anti-derailment device is in a posture of avoiding the insertion space, and the crawler chassis can be transferred by inserting the tines of the forklift into the insertion space.

In some embodiments, at least one track limiter includes a first track limiter 13A and a second track limiter 13B, and the first track limiter 13A and the second track limiter 13B are along the front and rear of the tracked chassis. Orientation arrangement.

In order to achieve a better limit effect, according to the structure, size and stiffness of the track, the crawler chassis can include more or fewer track derailment devices 1, and the track derailment device 1 can include more or less track limiters. bit department.

In some embodiments, at least one crawler stopper is rotatably connected to the vehicle frame 2 along the left-right axis of the crawler chassis.

Referring to the embodiment shown in FIGS. 1 to 7 , the crawler anti-derailment device 1 includes a base 11 detachably mounted on the vehicle frame 2, and the first crawler stopper 13A and the second crawler stopper 13B can be coaxially hinged on the on the base 11. In some unillustrated embodiments, the first track limiting portion 13A and the second track limiting portion 13B can also be directly hinged to the vehicle frame 2 or to the base 11 through different hinge axes respectively.

Of course, at least one crawler limiter can also be set movably relative to the frame 2, for example, set movably along the up and down direction of the crawler chassis, or set movably and rotatably relative to the frame 2, as long as it can Play the role of changing the working position of the track limiter.

In some embodiments, the crawler anti-derailment device 1 includes a driving component, which is drivingly connected to the crawler stopper and is configured to: drive the crawler stopper to switch from the first working position to the second working position, and/or, The drive track limiter is switched from the second working position to the first working position.

In some embodiments, the drive member includes the telescoping member 12 and/or the first handle. One end of the telescopic part 12 in the telescopic direction is hinged to the vehicle frame 2, and the other end is hinged to the crawler stopper. The telescopic part 12 is configured to switch the working position of the crawler stopper by changing its own length. The first handle is arranged on the track limiting part and is configured to drive the track limiting part to switch the working position of the track limiting part.

Referring to FIGS. 1 to 7 , the telescopic component 12 can be directly hinged on the vehicle frame 2 or hinged on the base 11 . The telescopic part 12 can be a tension gas spring, which is in an extended state at the first working position and is in a retracted state at the second working position. The tension gas spring can drive the crawler stopper to automatically switch from the second working position to the first working position , and the process of switching the track limiter from the first working position to the second working position can be completed manually with the help of the first handle, without special tools, and the operation is simple and convenient. In some unillustrated embodiments, the telescopic member 12 may also be an electric gas spring, a free-type gas spring, or other forms of gas springs, or a hydraulic cylinder.

In order to prevent the track limiter from moving up and down and deviating from the corresponding working position during the operation of the tracked vehicle or during the transport of the tracked chassis, in some embodiments, the track derailment device 1 includes a locking component, the locking component It is configured to fix the track limiter on the vehicle frame 2 so that the track limiter is kept at the first working position and/or the second working position.

In some embodiments, the track limiter is provided with a first through hole and/or a second through hole, the vehicle frame 2 is provided with a first pin hole and a second pin hole, and the first pin hole and the second pin hole are The vertical distribution of the tracked chassis. The locking part includes a bolt 15, which is connected with the first pin hole through the first through hole, so that the track limiter is kept at the first working position, and/or, the bolt 15 is passed through the second through hole and connected with the first pin hole. The two pin holes are mated and connected so that the track limiter is kept at the second working position.

In some embodiments, the latch 15 includes a latch body and a second handle 151 disposed at the first end of the latch body, at least a part of the second handle 151 is located radially outside of the latch body. The track anti-derailment device also includes a stopper 14, the stopper 14 is detachably installed on the second end of the bolt body, and when the stopper 14 is installed on the second end of the bolt body, at least a part of the stopper 14 is located at the diameter of the bolt body. to the outside.

When the tracked vehicle is working, the bolt 15 needs to bear loads from multiple directions. In the above-mentioned embodiment, by setting the second handle 151 at the first end of the bolt body, the installation or removal of the bolt 15 can be facilitated, and by installing the bolt 15 on the vehicle frame 2, the blocking member 14 is installed on the first end of the bolt body. Two ends, just can prevent latch 15 from moving axially along itself. Referring to FIG. 1 , the blocking member 14 can be an O-shaped pin, and the pin body of the O-shaped pin is inserted into the second end of the plug body along the radial direction of the plug body.

In some embodiments, the crawler limit part has an insertion end, and the crawler belt 6 is provided with a limit groove 61 extending in a direction perpendicular to the left-right direction of the crawler chassis. In the first working position, the insertion end is inserted into the limit groove 61, In the second working position, the insertion end breaks away from the limiting groove 61 .

Referring to Fig. 1 to Fig. 7, the crawler limiter can include a sticker at the insertion end, such as the sticker 137A of the first crawler limiter 13A and the sticker 137B of the second crawler limiter 13B, which can improve the track limiter. The strength of the part can moderately reduce the gap between the track limit part and the track, so that the limit is more reliable and the anti-derailment effect of the track 6 is improved.

In some embodiments, rounded corners are provided at the junction of the bottom surface and the side surface of the insertion end.

For the crawler belt 6 made of rubber, if the crawler belt moves along the left and right directions, the above setting can prevent the crawler belt 6 from being cut by the insertion end, thereby prolonging the service life of the crawler belt. Referring to Fig. 6 and Fig. 7, the above-mentioned rounded corners may be provided on the edge of the veneer.

The crawler chassis of some embodiments of the present disclosure and their working principles will be further described below in conjunction with the accompanying drawings.

The crawler chassis includes a crawler anti-derailment device 1, a vehicle frame 2, a guide wheel 3, a tensioning device 4, a supporting wheel 5, a crawler belt 6, a driving wheel 7, a traveling motor 8, a fixed nut 9, and a cotter pin 10.

The track anti-derailment device 1 is assembled from a base 11 , a telescopic component 12 , a first track limiting portion 13A, a second track limiting portion 13B, a blocking member 14 , a latch 15 and a retaining ring 16 . The base 11 is composed of a bottom plate 111 , a round pipe 112 , a first rib 113 , a mounting seat 114 for telescopic components, a hinge pin 115 and a second rib 116 . The hinge pin shaft 115 is a stepped shaft, and a first threaded hole 1151 is provided at one end. The telescopic part 12 is a tension gas spring, and the initial posture is that the cylinder rod is fully retracted, and can automatically shrink and reset after being stretched. The first track limiter 13A is composed of a first hinged seat 131A, a top plate 132A, a second hinged seat 133A, a third rib plate 134A, a vertical plate 135A, a shaft sleeve 136A, a sticker 137A and a first handle 138A. A first through hole 1351A and a second through hole 1352A are provided, the first through hole 1351A and the shaft sleeve 136A are arranged coaxially, and the edge of the patch 137A is provided with a rounded corner 1371A. The second track limiter 13B is composed of a first hinged seat 131B, a top plate 132B, a second hinged seat 133B, a third rib plate 134B, a vertical plate 135B, a shaft sleeve 136B, a sticker 137B and a first handle 138B. A first through hole 1351B and a second through hole 1352B are provided, the first through hole 1351B and the shaft sleeve 136B are coaxially arranged, and the edge of the sticking plate 137B is provided with rounded corners 1371B. The latch 15 includes a latch body and a second handle 151 .

The vehicle frame 2 includes a tensioning device mounting seat 21, a roller mounting seat 22, a first pin hole plate 23A, a second pin hole plate 23B, a base mounting seat 24, a chute 25, a vehicle frame body 26, and a traveling motor installation Hole 27. The supporting wheel mounting seat 22 is provided with a mounting hole, the inner wall of the mounting hole has a first plane 221, the first pin hole 231A and the second pin hole 232A are provided on the first pin hole plate 23A, and the second pin hole plate 23B is provided with There are a first pin hole 231B and a second pin hole 232B, and a second threaded hole 241 is provided on the base mount 24 .

The guide wheel 3 includes a guide wheel body 31 and a guide wheel shaft 32 , and the guide wheel shaft 32 is provided with a second plane 321 and a sliding plate 322 .

The roller 5 includes a roller body 51 and a roller shaft 52 , the roller shaft 52 is a stepped shaft, and is provided with a third plane 521 , a step 522 , an external thread 523 and a fixing pin hole 524 .

As shown in Figure 4, the first crawler stopper 13A and the second crawler stopper 13B are installed on the base 11 and can rotate around the hinge pin 115, and the retaining ring 16 is connected with the hinge pin 115 by bolts to prevent The first track stopper 13A and the second track stopper 13B move axially. The telescopic parts 12 are respectively connected with the telescopic part mounting seat 114, the second hinged seat 133A of the first crawler limiter and the second hinged seat 133B of the second crawler limiter, so that the first crawler limiter 13A and the second crawler The limiting part 13B has an automatic reset function after being displaced.

As shown in Figure 5, the round pipe 112 and the hinge pin 115 are fixed on the bottom plate 111 by welding, the first rib 113 and the second rib 116 are arranged around the circumference, and the expansion part mounting seat 114 is welded on the end of the round pipe 112 , so that the overall structure of the base 11 is compact and has high strength. As shown in Fig. 6 and Fig. 7, the structure of the first crawler stopper 13A and the second crawler stopper 13B are similar. In the first crawler stopper 13A, the first hinge seat 131A, the second hinge seat 133A, the vertical plate 135A are respectively welded on the corresponding positions of the top plate 132A, and the first hinge seat 131 is arranged symmetrically with respect to the vertical plate 135A; a third rib plate 134A is arranged between the top plate 132A and the vertical plate 135A, and the third rib plate 134A is opposite to the two sides of the vertical plate 135A. Side symmetrical arrangement; the shaft sleeve 136A is coaxially arranged with the first through hole 1351A, and is fixed on the vertical plate 135A by welding; the two sides of the vertical plate 135A are welded with sticking plates 137A, which can not only improve the strength of the vertical plate, but also reduce the vertical The gap between the plate and the track improves the anti-derailment effect. The structure of the second track limiting portion 13B is similar to that of the first track limiting portion 13A, and will not be described in detail here.

As shown in Fig. 1 to Fig. 3 and Fig. 8, the tensioning device mounting seat 21, the roller mounting seat 22, the first pin hole plate 23A, the base mounting seat 24 and the second pin hole plate 23B are welded on the frame body 26, the left and right sides are arranged symmetrically. The front end of vehicle frame 2 is provided with chute 25, and the sliding plate 322 of guide wheel 3 can slide in chute 25, and the rear end of vehicle frame 2 is provided with travel motor installation hole 27, and travel motor 8 is installed in travel motor installation hole 27. superior. The supporting wheel 5 is installed on the supporting wheel mounting seat 22, and is fixed on the vehicle frame 2 through the fixing nut 9 and the cotter pin 10. The supporting wheel mounting seat 22 is provided with a first plane 221, and the supporting wheel 5 is provided with a There is a third plane 521, and the two planes cooperate to prevent the roller shaft 52 from rotating. The base mount 24 is provided with a second threaded hole 241 , and the crawler anti-derailment device 1 is fixed on the base mount 24 by bolts. The first pin hole plate 23A is provided with a first pin hole 231A and a second pin hole 232A, and the second pin hole plate 23B is provided with a second pin hole 231B and a second pin hole 232B. Through the vertical plate 135A of the first crawler stopper 13A and the pin hole of the first pin hole plate 23A, the first crawler stopper 13A can be fixed on the frame 2, and the other can pass through the second crawler stopper 13A The vertical plate 135A and the pin hole of the first pin hole plate 23A can fix the first crawler stopper 13A on the vehicle frame 2 . In the working state of the crawler chassis, the track limiter is in the first working position, the bolt 15 bears loads transmitted in various directions, and the second handle 151 and the blocking member 14 can prevent the bolt 15 from moving axially.

As shown in Fig. 1 to Fig. 3, Fig. 9 and Fig. 10, the guide wheel 3 is located at the front end of the vehicle frame 2, the travel motor 8 is drivingly connected with the driving wheel 7, and is located at the rear end of the vehicle frame 2, and the crawler anti-derailment device 1 is connected by bolts. Installed in the middle of the vehicle frame 2, a plurality of rollers 5 are evenly arranged on the lower part of the vehicle frame 2, and the crawler belt 6 is a closed ring and is wound on the outside of each wheel. The tensioning device 4 is assembled on the tensioning device mounting seat 21, and is composed of a tensioning bolt 41 and a tensioning nut 42 that cooperate with each other. The tensioning bolt 41 is pressed against the second plane 321 of the guide wheel shaft 32 by the tensioning nut 42, The guide wheel 3 moves forward under the action of the tension bolt 41 to realize the tension of the crawler belt 6 .

Between the supporting wheel 5 and the vehicle frame 2 and the crawler belt 6, an insertion space H for inserting the tines of a forklift is formed.

When the track limiter is in the first working position, as shown in Figure 1, a bolt 15 is inserted into the first through hole 1351A and the first pin hole plate of the first track limiter 13A on the front side of the vehicle frame 2 at the same time. 23A of the first pin hole 231A, the other pin 15 is simultaneously inserted into the first through hole 1351B of the second track limiter 13B on the rear side of the vehicle frame 2 and the first pin hole 231B of the second pin hole plate 23B, and the track The anti-derailing device 1 is fixed on the vehicle frame 2. As shown in Figure 2, there is a gap between the plate 137A and the bottom surface 611 of the limit groove and the side surface 612 of the limit groove of the crawler belt 6, and the fillet 137A is provided with rounded corners, which can prevent cuts when the crawler belt 6 moves laterally. Rubber tracks.

When the track limiter is in the second working position, as shown in Figure 3, the stoppers 14 and the corresponding latches 15 on the front and rear sides of the vehicle frame 2 are removed manually respectively, the first track limiter 13A, the second track limiter 13A, and the second track limiter The position limiting part 13B rotates around the hinge pin shaft 115 under the drive of the telescopic part 12, and the insertion space H is automatically exposed at this time, and can be used for forklift transportation by forklift. In order to prevent the first crawler stopper 13A and the second crawler stopper 13B from moving up and down during transportation, the front pin 15 can be inserted into the second through hole 1352A and the first pin hole of the first crawler stopper 13A at the same time In the second pin hole 232A of the plate 23A, the bolt 15 on the rear side is inserted into the second through hole 1352B of the second crawler stopper 13B and the second pin hole 232B of the second pin hole plate 23B at the same time. It is safe and can also prevent the latch 15 from being missed during transportation. When the crawler chassis is transported to the work site, the front and rear latches 15 are removed, and the first handle 138A of the first crawler stopper 13A and the handle 138B of the second crawler stopper 13B are respectively grasped to pull the first crawler stopper downward. The position part 13A and the second crawler limit part 13B are inserted into the latch 15 until the corresponding through hole and the pin hole are aligned, and the posture switching of the crawler anti-derailment device is completed.

The tracked chassis has a reliable structure and is easy to operate. The attitude switching of the tracked anti-derailment device can be completed manually without borrowing tools, which not only improves the operational reliability of the tracked vehicle, but also reduces the complexity of the position change operation.

Some embodiments of the present disclosure also provide a tracked vehicle, including the aforementioned tracked chassis. The tracked vehicle has the advantages of the aforementioned tracked chassis. The crawler vehicle can be a crawler-type elevating work platform, such as a scissor truck, or a crawler-type fire-fighting vehicle, such as a crawler-type smoke exhaust robot, a crawler-type fire-fighting robot, and the like.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit them; although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the present disclosure can still be Modifications to the disclosed specific implementation methods or equivalent replacement of some technical features shall be covered by the scope of the technical solution claimed in the present disclosure.

Claims (11)

1. A crawler chassis, characterized in that, comprising: frame (2); The running part is installed on the vehicle frame (2) to drive the vehicle frame (2) to walk, the running part includes rollers (5) and crawlers (6), and the rollers (5) , between the vehicle frame (2) and the crawler belt (6), there is an insertion space (H) for inserting the tines of a forklift; and The crawler anti-derailment device (1) includes at least one crawler stopper, the crawler stopper is movably connected to the vehicle frame (2), and the crawler stopper has a first working position and a second working position. In the working position, in the first working position, the crawler belt limiter restricts the crawler belt (6) from moving in the left and right direction of the crawler chassis; in the second working position, the crawler belt limiter avoids The insertion space (H). 2. The crawler chassis according to claim 1, characterized in that at least one crawler stopper is rotatably connected to the vehicle frame (2) along an axis in the left and right direction of the crawler chassis. 3. The crawler chassis according to claim 1, characterized in that, the crawler anti-derailment device (1) comprises a driving part, and the driving part is drivingly connected with the crawler limit part and is configured to: drive the The track limiter switches from the first working position to the second working position, and/or drives the track limiter to switch from the second working position to the first working position. 4. The tracked chassis according to claim 3, wherein the drive components include: A telescopic part (12), one end of the telescopic direction is hinged to the vehicle frame (2), and the other end is hinged to the track limiter, and the telescopic part (12) is configured to switch the track by changing its own length the working position of the stopper; and/or The first handle is arranged on the track limiting part and is configured to drive the track limiting part to switch the working position of the track limiting part. 5. The crawler chassis according to claim 1, characterized in that, the crawler anti-derailment device (1) includes a locking component, and the locking component is configured to fix the crawler stopper to the on the vehicle frame (2) so that the track limiter is kept at the first working position and/or the second working position. 6. The tracked chassis according to claim 5, characterized in that, The crawler limit part is provided with a first through hole and/or a second through hole, the vehicle frame (2) is provided with a first pin hole and a second pin hole, and the first pin hole and the second pin hole Two pin holes are distributed along the up and down direction of the crawler chassis; The locking part includes a pin (15), and the pin (15) is fitted through the first through hole and connected with the first pin hole, so that the crawler stopper can be kept at the first working position. position, and/or, the bolt (15) passes through the second through hole and is matedly connected with the second pin hole, so that the track limiter is kept at the second working position. 7. The tracked chassis according to claim 6, characterized in that, The bolt (15) includes a bolt body and a second handle (151) disposed at the first end of the bolt body, at least a part of the second handle (151) is located radially outside the bolt body; The track anti-derailment device also includes a stopper (14), the stopper (14) is detachably installed on the second end of the bolt body, and the stopper (14) is installed on the second end of the bolt body In the state of the second end, at least a part of the blocking member (14) is located radially outside of the plug body. 8. The crawler chassis according to claim 1, characterized in that, the crawler limit portion has an insertion end, and the crawler belt (6) is provided with a limiter extending in a direction perpendicular to the left and right direction of the crawler chassis. Position slot (61), in the first working position, the insertion end is inserted into the limiting slot (61), in the second working position, the insertion end is out of the limiting slot (61) . 9. The crawler chassis according to claim 8, characterized in that, rounded corners are provided at the junction of the bottom surface and the side surface of the insertion end. 10. The crawler chassis according to any one of claims 1 to 9, characterized in that, the at least one crawler stopper comprises a first crawler stopper (13A) and a second crawler stopper (13B) , the first track limiting portion (13A) and the second track limiting portion (13B) are arranged along the front-rear direction of the crawler chassis. 11. A tracked vehicle, characterized in that it comprises the tracked chassis according to any one of claims 1-10.

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