WO2018176368A1 - Spherical joint track chain - Google Patents

Abstract

A spherical joint track chain comprises a track plate assembly and a chain joint (2) connected to the track plate assembly. The track plate assembly comprises a track plate connecting portion (122) located at the end portion of a track plate (11). The chain joint (2) comprises a chain joint connecting portion (21). The track plate connecting portion (122) is in concave and convex fit with the chain joint connecting portion (21). By means of the structure, the track chain covering the surface of a track tire can rotate in a vertical surface parallel to a side wall of the track tire so as to walk under the drive of the track tire, and can rotate along with the track tire in a horizontal surface so as to implement flexible turn.

Description

 Spherical joint track chain

 Technical field

 [0001] The present invention relates to the field of crawler belt travel, and more particularly to a spherical joint crawler chain.

 Background technique

 [0002] A crawler chain applied to a crawler traveling mechanism is composed of a track shoe and a track shoe connecting structure. The track shoe connection structure connects the track shoes to form a track link, and the track link is mounted on the track tire so that the track plate covers the outer surface of the track tire, and the track link is driven by the track wheel in the track link Rotation in the plane drives the forward or backward movement of the track running mechanism.

 technical problem

 [0003] However, it is impossible for the traveling direction of the traveling mechanism to advance and retreat only, and there is necessarily a process of turning. At the time of the turn, the track tires are deflected at an angle such that the sidewalls of the tire are not parallel to the plane of the track link. The prior art track shoe connecting structure includes a board mounting structure and a link for mounting the track shoe, and the board mounting structure is interconnected by links to form an endless chain disposed on both sides of the track tire. After turning, the covered track chain can't follow the change of the track wheel well (as shown in Figure 1, 2), which leads to the less flexible structure of the tracked structure in the prior art, and the turning angle is better. Large, heavy operation.

 Problem solution

 Technical solution

 [0004] In order to solve the above technical problems, the present invention provides a spherical joint crawler chain, comprising: a track shoe assembly and a link connecting the track shoe assemblies; the track shoe assembly including an end portion of the track shoe In the track shoe connecting portion, the link includes a link connecting portion; and the track shoe connecting portion and the link connecting portion are concave-convex.

 [0005] Preferably, in the first plane, the track shoe connecting portion and the link connecting portion have a curved edge with a concave-convex fit; in the second plane, the track shoe connecting portion and the link The connecting portion has a curved edge with a concave-convex fit; the first plane intersects the second plane.

 Advantageously, said first plane is perpendicular to said second plane.

[0007] Preferably, the track shoe connecting portion and the link connecting portion have a spherical surface with a concave-convex fit. [0008] Preferably, the link connecting portion is a columnar structure, the track shoe connecting portion is a hook-shaped structure; the link connecting portion is received in the track shoe connecting portion; the first plane and the The bottom surface of the columnar structure is parallel, and the second plane is perpendicular to the bottom surface of the columnar structure.

 [0009] Preferably, the track shoe assembly includes a track shoe mount, the track shoe mount including a track shoe attachment portion and the track shoe attachment portion, the track shoe attachment portion for attaching the track a track, the track shoe connecting portion is disposed at an end of the track shoe attachment portion, and the track shoe mounting member at the same side end portion of the track shoe forms a ring through the link connection; The plate covers the surface of the track tire; the link includes a series portion, and the same side end portion of the link connection portion is connected by the serial portion to form a ring.

 [0010] Preferably, the spherical joint is mounted on a track tire, and the track shoe mounting member at the same side end portion of the track shoe is connected to the side wall of the track tire by the link to form a ring, and The track shoe covers the running surface of the track tire.

 [0011] Preferably, the track shoe assembly further includes a side limiting member, the side limiting member includes an upper connecting portion, a side connecting portion, and a limiting portion; the track shoe is attached to the track shoe attached An outer surface of the portion, the upper connecting portion is attached to an inner surface of the track shoe attachment portion; the side connecting portion is connected to both ends of the hook-shaped track plate connecting portion; the limiting portion is disposed at Two of the side connecting portions and the two side connecting portions and the upper connecting portion are connected.

 [0012] Preferably, the limiting portion extends from the upper connecting portion to the outside of the track shoe connecting portion, so that the crawler chain is mounted on the track tire, and at least a part of the limiting portion is located at the The side wall of the track tire at the end of the track shoe.

 [0013] Preferably, the track shoe includes a non-slip strip disposed along a length thereof.

 Advantageous effects of the invention

 Beneficial effect

 [0014] The track chain covering the surface of the tracked tire can not only be rotated in a vertical plane parallel to the side wall of the track tire to achieve walking under the driving of the track tire, but also can achieve flexible turning in accordance with the rotation of the track tire in the horizontal plane. .

 Brief description of the drawing

DRAWINGS [0015] FIG. 1 is a schematic view showing a straight state of a crawler chain of the prior art.

 2 is a schematic view showing a prior art track chain turning state.

 3 is a top plan view showing the structure of a track shoe assembly according to an embodiment of the present invention.

 4 is a side view showing the structure of a track shoe assembly according to an embodiment of the present invention.

 5 is a top plan view of a link structure according to an embodiment of the present invention.

 6 is a side view of a link structure of an embodiment of the present invention.

 [0021] FIG. 7 is a schematic view of the track chain of the embodiment of the present invention mounted on a track tire.

 8 is a schematic view showing the track shoe connecting portion and the link connecting portion of the embodiment of the present invention in a straight state.

 9 is a schematic view showing a track shoe connecting portion and a link connecting portion in a turning state according to an embodiment of the present invention.

 10 is a top plan view of the structure of a track shoe connector according to an embodiment of the present invention.

 11 is a side view showing the structure of a track shoe connector according to an embodiment of the present invention.

 12 is a top view of a link structure of an embodiment of the present invention.

 [0027] FIG. 13 is a side view of a link structure of an embodiment of the present invention.

 BEST MODE FOR CARRYING OUT THE INVENTION

 BEST MODE FOR CARRYING OUT THE INVENTION

[0028] Embodiments of the present invention will be described in detail below with reference to the drawings.

 The present invention is only an explanation of the present invention, and is not intended to limit the invention. Those skilled in the art can make modifications without innovating the present embodiment as needed after reading the present specification, but All patent claims are protected by patent law.

[0030] A spherical joint track chain comprising a track shoe assembly and a link 2 that connects the track shoe assemblies. As shown in FIG. 3-4, the track shoe assembly includes a track shoe 11, a track shoe mounting member 12, and a side limiting member 13. The track shoes 11 are strip-shaped plate-like structures, and the track shoes 11 can have different structural parameters such as length, width, and curvature depending on the size of the different track tires. One side of the plate-shaped track shoe 11 has a strip-shaped anti-slip strip 111 which is disposed along the longitudinal direction of the track shoe and protrudes from the surface of the track shoe. The anti-slip surface is further provided with a non-slip protrusion 1111 to improve the track chain and the ground. Adhesion. The structure, material, and combination of structure and material of the surface of the track shoe 11 can be adjusted according to the driving and application environment of the crawler traveling structure. The track shoe mount 12 includes a plate-like structure, and both ends of the plate-like structure are bent into a hook-shaped recess toward the intermediate portion. The straight plate of the middle portion of the plate-like structure serves as the track shoe attachment portion 121, and the hook structure at both ends of the plate-like structure serves as a crawler connection Part 122. There are two track shoe mounts 12, two track shoe mounts being respectively located at opposite ends of the track shoe 11, and the ends of the track shoes 11 being attached to the outer surface of the track shoe attachment portion 121. As shown in Fig. 4, the link 2 includes two link joints 21 and a tandem 22 in which the link joints 21 are connected in series to form an annular structure. The link connecting portion 2 11 is a spherical projection or a nearly spherical projection toward the inside of the annular link 2, and the inner surface of the hook-like structure of the crawler connecting portion 122 has a spherical or nearly spherical recess. The projections can be smoothly accommodated in the recesses. As shown in FIG. 5-6, the side limiting member 3 includes an upper connecting portion 31, a side connecting portion 32, and a limiting portion 33. The upper connecting portion 31 has a plate-like structure, and the side connecting portion 32 is also perpendicular to a plate-like structure provided at both end portions of the upper connecting portion 31. The limiting portion 33 is disposed between the two side waist portions and connects the two side connecting portions 32 and the upper connecting portion 31. The assembly process of the track chain is such that: the link 2 is nested from the tongue between the two track shoe joints of the track shoe mount 12 such that the projection of the link connection 21 of the link 2 is placed on the track shoe connection 122 In the recess. Each of the track shoe attachment portions of the track shoe mount 12 is nested in a chain link 2. Another link connection of the link 2 is inserted into the track shoe connection of another track shoe mount adjacent the track shoe mount. Then, the upper connecting portion 31 of the side stopper is attached to the inner surface of the track shoe attachment portion 121 such that the side connecting portions 32 on both sides of the upper connecting portion 31 are perpendicular to the upper connecting portion 31 and are connected by the upper connecting portion 31. Extending to the track shoe connecting portion, the side connecting portion 32 on both sides of the upper connecting portion 31 includes an inwardly recessed waist portion, and the track shoe connecting portion 122 is weldedly connected to the waist of the side connecting portion 32 so that the side connection The portion 32 and the recess form a closed loop that will constrain the link 2 in the hooked track shoe attachment portion 122. The limiting portion 33 connects the side connecting portions 32 on both sides of the bottom side of the upper connecting portion 31 and extends along the longitudinal direction of the side connecting portion 32 to the mouth between the two track shoe connecting portions 122 of the track shoe mount. outer. The link connecting portion 21 may have a spherical structure or a columnar structure in which a side surface of the inside of the link 2 is spherical or nearly spherical. The track mounts 12 at the same side end of the track shoe 11 are joined by links 2 to form a closed link structure that can be fitted to the side of the track tire, as shown in FIG. When the track chain is assembled to the side of the track tire, the upper connecting portion of the side limiting member 3 abuts against the surface of the track tire for contact with the ground, and the bottom surface of the limiting portion ₃₃ of the track limiting member ₃ is attached to the crawler belt. On the side wall of the tire, the track chain is prevented from coming off the track tire. The shape of the bottom surface of the stopper portion 33 can be rationally designed according to the properties of the structure and material of the crawler tire. The track shoe connecting portion has a concave curved rim 1221 in a plane parallel to the bottom surface of the link connecting portion, and the link connecting portion 21 has a convex curved edge 211 that cooperates with the track shoe connecting portion in the same plane. As shown in FIG. 8, the track shoe mount 12 is enabled to rotate with the track shoe attachment portion 122 in the plane of rotation of the track tire. At the same time, the track shoe connecting portion 122 is perpendicular to The bottom surface has a concave arcuate rim 1222 in the plane, and the link connecting portion has a convex curved edge 212 matching the track shoe connecting portion in the same plane, as shown in FIG. 9, so that the track shoe mounting member can The track shoe connecting portion rotates with the link connecting portion 21 in a horizontal plane parallel to the ground (i.e., a turning plane of the crawler tire). Therefore, when the crawler running mechanism turns, the track shoe mounting member and the link are gradually approached from the end near the outer side of the turn toward the inner side near the turn, and the position where the track shoe connecting portion and the link connecting portion are attached is along The curved trajectory formed in the turning plane does not collide as shown in Fig. 2, enabling a smaller turning angle and flexible turning.

 Further, the structure of the track shoe connecting portion and the link connecting portion may be reversed, that is, the track shoe connecting portion has a convex structure and the link connecting portion has a concave structure matching the track shoe connecting portion. The track shoe connecting portion 122 and the link connecting portion 21 are brought into contact with the entire surface of the uneven portion, the tire corner is larger, and the inner surface of the hook-shaped crawler connecting portion 122 is not worn by the long turns.

 10-13, the track shoe mount 12 includes a plate-like structure, and both ends of the plate-like structure are bent into a hook-shaped recess toward the intermediate portion. The straight plate of the intermediate portion of the plate-like structure serves as the track shoe attachment portion 121, and the hook-like structure at both ends of the plate-like structure serves as the crawler belt connecting portion 122. There are two track shoe mounting members 12, two track shoe mounting members are respectively located at both ends of the track shoe 11, and the ends of the track shoes 11 are attached to the outer surface of the track shoe attaching portion 121. As shown in Fig. 4, the link 2 includes two link joint portions 21 and a tandem portion 22 which connects the link joint portions 21 in series to form a ring-like structure.

[0034] The inner surface of the hook-like structure of the track shoe connecting portion 122 has a spherical or nearly spherical projection, and the inner side surface of the link connecting portion 211 facing the annular link 2 has a spherical or nearly spherical recess. The projection of the track connecting portion 122 can smoothly roll in the recess just received in the link connecting portion 211. The links 2 are nested from the tongues between the two track shoe joints of the track shoe mount 12 such that the projections of the track shoe attachment portion 122 are placed in the recesses of the link connection portion 21. Each of the track shoe attachment portions of the track shoe mount 12 is nested in a chain link 2. Another link connection of the link 2 is inserted into the track shoe connection of another track shoe mount adjacent the track shoe mount. Then, the upper connecting portion 31 of the side stopper is attached to the inner surface of the track shoe attachment portion 121 such that the side connecting portions 32 on both sides of the upper connecting portion 31 are perpendicular to the upper connecting portion 31 and are connected by the upper connecting portion 31 Extending to the track shoe connecting portion, the side connecting portion 32 on both sides of the upper connecting portion 31 includes an inwardly recessed waist portion, and the track shoe connecting portion 122 is welded to the waist portion of the side connecting portion 32 so that the side The connecting portion 32 and the hook structure form a closed loop that will limit the link 2 to the hooked track shoe In the joint 122. The limiting portion 33 connects the side connecting portions 32 on both sides at the bottom edge of the upper connecting portion 31 and extends along the longitudinal direction of the side connecting portion 32 to the mouth between the two track shoe connecting portions 122 of the track shoe mount. outer. The link connecting portion 21 may be a columnar structure, and a side of the columnar structure near the inside of the link 2 is a concave spherical surface or a near spherical surface. The track mounts 12 at the same side end of the track shoe 11 are joined by links 2 to form a closed link structure that can be fitted to the side of the track tire, as shown in FIG. When the track chain is assembled to the side of the track tire, the upper connecting portion of the side limiting member 3 abuts against the surface of the track tire for contact with the ground, and the bottom surface of the limiting portion 33 of the track limiting member 3 is attached to the crawler belt. On the side wall of the tire, the track chain is prevented from coming off the track tire. The shape of the bottom surface of the stopper portion 33 can be rationally designed according to the properties of the structure and material of the crawler tire. The track shoe connecting portion has a convex arcuate rim 1221 in a plane parallel to the bottom surface of the link connecting portion, and the link connecting portion 21 has a concave curved edge 211 that cooperates with the track shoe connecting portion in the same plane. The track shoe mount 12 is enabled to rotate with the track shoe attachment portion 122 in the plane of rotation of the track tire. In the same manner, the track shoe connecting portion 122 has a convex arcuate rim 1222 in a plane perpendicular to the bottom surface, and the link connecting portion has a concave curved edge 212 matching the track shoe connecting portion in the same plane, so that The track shoe mount is rotatable with the track shoe joint at a horizontal plane parallel to the ground (i.e., the turning plane of the track tire) with the link joint portion 21. Therefore, when the crawler running mechanism turns, the track shoe mounting member and the link are gradually approached from the end near the outer side of the turn toward the inner side near the turn, and the position where the track shoe connecting portion and the link connecting portion are attached is along The curved trajectory formed in the turning plane does not collide as shown in Fig. 2, enabling a smaller turning angle and flexible turning.

 While the embodiments of the invention have been described in the drawings

Claims

Claim A spherical joint crawler chain, comprising: a track shoe assembly and a link connecting the track shoe assembly; the track shoe assembly including a track shoe connection portion (122) at an end of the track shoe (11), The link (2) includes a link connecting portion (21); the track shoe connecting portion (122) and the link connecting portion (21) are concave-convex. A spherical joint track chain according to claim 1, wherein: in the first plane, the track shoe connecting portion (122) and the link connecting portion (21) have concave and convex curved edges In the second plane, the track shoe connecting portion (122) and the link connecting portion (21) have a concave-convex curved edge; the first plane intersects the second plane. A spherical joint track chain according to claim 2, wherein: said first plane is perpendicular to said second plane. A spherical joint crawler chain according to claim 2 or 3, wherein the track shoe connecting portion (122) and the link connecting portion (21) have a spherical surface which is concave-convex. A crawler chain structure according to claim 4, wherein: said link connecting portion (21) is a columnar structure, said track shoe connecting portion (122) is a hook-like structure; said link connecting portion Accommodating in the track shoe connecting portion; the first plane is parallel to a bottom surface of the columnar structure, and the second plane is perpendicular to a bottom surface of the columnar structure. A spherical joint track chain according to claim 5, wherein: said track shoe assembly comprises a track shoe mount (12), said track shoe mount (12) comprising a track shoe attachment portion (121) and The track shoe connecting portion (122), the track shoe attachment portion (12 1) is for attaching the track shoe (11), and the track shoe connecting portion (122) is disposed at the track shoe attachment portion (121) an end portion, the track shoe mounting member at the same side end portion of the track shoe is formed by the link connection to form a ring; the track shoe is covered on a surface of the track tire; the chain link (2) The splicing portion (22) is included, and the same side end portion of the link connecting portion (21) is connected by the splicing portion (22) to form a ring. A spherical joint track chain according to claim 6, wherein: said spherical joint is mounted on a track tire, said same at the same side end of said track shoe (11) A strip mounting member (12) is coupled to the side wall of the track tire by the link (2) to form a loop, and the track shoe (11) is covered on the running surface of the track tire.  [Claim 8] A spherical joint track chain according to claim 7, wherein: the track shoe assembly further includes a side limiting member (3), and the side limiting member includes an upper connecting portion (31) , a side connecting portion (32), a limiting portion (33); the track shoe (11) is attached to an outer surface of the track shoe attachment portion (121), and the upper connecting portion (31) is attached To the inner surface of the track shoe attachment portion (121); the side connection portion is connected to both ends of the hook of the hook-shaped track shoe connecting portion (1 22); the limiting portion (33) is disposed at two Two side connecting portions (32) and the upper connecting portion (31) are connected between the side connecting portions.  [Claim 9] A spherical joint track chain according to claim 8, wherein: the limiting portion (33) extends from the upper connecting portion (31) to the track shoe connecting portion (122) In addition, the track chain is mounted on the track tire, and at least a portion of the limiting portion is located on a side wall of the track tire at the end of the track shoe.  [Claim 10] A crawler chain structure according to claim 1 or 2 or 3 or 5 or 6 or 7 or 8 or 9, characterized in that: the track shoe (11) comprises a longitudinal direction Non-slip strip (111).