WO2019061314A1 - Crawler spring tension-maintaining device for heavy duty construction equipment - Google Patents

Abstract

A crawler spring tension-maintaining device for heavy duty construction equipment comprises a spring installation box (1), a protection bearing (2), a crack-preventing protective cap (3), a main support rod (4), a connecting crankshaft (6), a rotating telescopic screw (7), and a device mounting hole (8). The connecting crankshaft is mounted above a bearing pressure-reducing box (5). The rotating telescopic screw is mounted above the connecting crankshaft. The device mounting hole is mounted above the rotating telescopic screw. A crankshaft regulator (9) is mounted below the device mounting hole. An electrical control box (10) is mounted below the crankshaft regulator (9). A PLC control circuit board (11) is mounted below the electrical control box (10). A pressure compensation calculation device (12) is mounted below the PLC control circuit board (11). A pressure sensor (13) is mounted below the pressure compensation calculation device (12). The device maintains tension of a crawler spring of heavy duty construction equipment, ensuring normal performance of heavy duty construction equipment, and extending the service life of heavy duty construction equipment.

Description

Track spring tension retaining device for heavy construction equipment Technical field

The present invention relates to the field of construction equipment, and to a track spring tension retaining device for heavy construction equipment.

Background technique

Construction equipment refers to equipment installed in a building to provide convenience, comfort, safety and other conditions for people to live, live and work. It mainly includes the following aspects: building water supply and drainage, building ventilation, architectural lighting, heating and air conditioning, building electrical, elevators, etc. With the continuous establishment of various types of industrial enterprises in China, the construction of various civil buildings in urban areas, the gradual improvement of people's living and living conditions, the rapid development of infrastructure construction and industrial construction, the level of construction equipment engineering technology is constantly improving. At the same time, due to the development of modern science and technology, various disciplines have infiltrated each other and influenced each other. Construction equipment technology has also been affected by the development of interdisciplinary research and is changing with each passing day. In general, the track shoe assembly of heavy construction equipment is elastically supported by the track spring assembly and telescoped within a certain range to mitigate shock during travel. However, in the past, when heavy construction equipment was operated in the field, the tension of the crawler spring became insufficient due to the leakage of the lubricating oil inside the cylinder due to the passage of time, and the phenomenon that the track shoe assembly drooped frequently occurred.

At present, the heavy-duty construction equipment used in China has a lack of tension in the track springs after a long period of time, which easily leads to a decline in equipment performance and seriously reduces the use of heavy construction equipment.

Summary of the invention

It is an object of the present invention to provide a track spring tension retaining device for heavy construction equipment in order to solve the above problems.

The present invention achieves the above objects by the following technical solutions:

Track spring tension maintaining device for heavy construction equipment, comprising spring placing box, protection bearing, anti-cracking protection head, main support rod, connecting crankshaft, rotating telescopic screw, device mounting hole, the spring The protection bearing is disposed above the placement box, the anti-crack protection head is disposed above the protection bearing, the main support rod is disposed above the anti-crack protection head, and the main support rod is installed with load-bearing pressure reduction a connecting crankshaft is mounted on the load-bearing pressure reducing box, and the rotating telescopic screw is mounted above the connecting crankshaft, and the device mounting hole is installed above the rotating telescopic screw, and the device mounting hole is installed below There is a crankshaft adjuster, an electric control box is installed under the crank adjuster, a PLC control circuit board is installed under the electric control box, and a pressure compensation calculator is installed under the PLC control circuit board, and the pressure compensation calculator A pressure sensor is installed below.

In this embodiment, the spring placement box includes a device load bearing spring, a spring connecting shaft, a connecting shaft gasket, a connector supporting plate, a tapered connecting head, a lubricating oil inlet, a lubricating oil guiding groove, and a mounting plate, and the device A spring connecting shaft is mounted under the load bearing spring, and the connecting shaft washer is mounted on one side of the spring connecting shaft, and the connecting head supporting plate is mounted on one side of the connecting shaft washer, and the connecting head supporting board side is The tapered connecting head is mounted, the lubricating oil inlet is installed under the tapered connecting head, and the lubricating oil guiding groove is installed on one side of the lubricating oil inlet, and the lubricating oil guiding groove is installed below There is a mounting plate.

In this embodiment, the load-bearing pressure reducing box includes a bottom leg, a sliding ball, a damper box limiting shaft, a support shaft, a damper box, a damper spring, and a fixing block, and the sliding is installed under the bottom leg a ball bearing, the damper box limiting shaft is mounted under the sliding ball, the supporting shaft is mounted on one side of the damper box limiting shaft, and the damper box is mounted on one side of the supporting shaft The damper spring is mounted inside the damper box, and the fixed block is mounted on one side of the sliding ball.

In this embodiment, the spring placement box is connected to the protection bearing, and the anti-crack protection head is connected to the main support rod, and the main support rod has a diameter of 6 cm.

In this embodiment, the load-bearing pressure reducing box is connected to the connecting crankshaft, and the rotating telescopic screw is connected to the device mounting hole.

In this embodiment, the crank adjuster is coupled to the connecting crankshaft.

In this embodiment, the pressure compensation calculator is connected to the PLC control circuit board, and the pressure sensor is disposed at the top of the spring placement box.

In this embodiment, the PLC control circuit board model is DMX512.

In this embodiment, the tapered connector has a taper of 15°, the lubricating oil inlet is a pressure inlet, and is automatically closed when not in use, and the spring connecting shaft passes through the bearing spring, the connection A clearance fit is provided between the shaft washer and the spring connecting shaft.

In this embodiment, the support shaft is made of a heat-resistant alloy steel, and the surface is spray-coated, and the shock absorbing spring is disposed inside the shock absorbing box.

The invention has the beneficial effects of being able to effectively maintain the tension of the track spring of the heavy construction equipment, ensuring the performance of the heavy construction equipment and prolonging the service life of the heavy construction equipment.

DRAWINGS

1 is a schematic front view showing the structure of a crawler spring tension retaining device for a heavy construction equipment according to the present invention;

2 is a schematic front view showing a spring placement box of a crawler spring tension retaining device for a heavy construction equipment according to the present invention;

3 is a schematic front view showing the structure of a load-bearing pressure reducing box of a crawler spring tension holding device of a heavy construction equipment according to the present invention.

The reference numerals are as follows:

1, spring placement box; 101, equipment load-bearing spring; 102, spring connection shaft; 103, connecting shaft gasket; 104, connector support plate; 105, tapered connector; 106, lubricating oil inlet; 107, lubricating oil guide Flow trough; 108, mounting plate; 2, protective bearing; 3, anti-crack protection head; 4, main support rod; 5, load-bearing decompression box; 501, bottom leg; 502, sliding ball; 503, shock box limit Shaft; 504, support shaft; 505, shock box; 506, shock absorbing spring; 507, fixed block; 6, connecting crankshaft; Screw; 8, device mounting hole; 9, crankshaft regulator; 10, electrical control box; 11, PLC control circuit board; 12, pressure compensation calculator; 13, pressure sensor.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings:

As shown in FIG. 1 to FIG. 3, a crawler spring tension retaining device for a heavy construction equipment includes the spring placement box 1, the protection bearing 2, the anti-crack protection head 3, the main support rod 4, The connecting crankshaft 6, the rotating telescopic screw 7, the device mounting hole 8, the protective bearing 2 is disposed above the spring placing box 1, and the anti-cracking protection head 3 is disposed above the protective bearing 2. The main support rod 4 is disposed above the anti-cracking protection head 3, and the load-bearing pressure reducing box 5 is mounted above the main support rod 4, and the connecting crankshaft 6 is mounted above the load-bearing pressure reducing box 5. The rotary telescopic screw 7 is mounted above the connecting crankshaft 6 , the device mounting hole 8 is mounted above the rotating telescopic screw 7 , and the crank adjuster 9 is mounted under the device mounting hole 8 An electric control box 10 is mounted under the crankshaft regulator 9, and the PLC control circuit board 11 is mounted under the electric control box 10, and the pressure compensation calculator 12 is installed under the PLC control circuit board 11 The pressure is installed under the pressure compensation calculator 12 Sensor 13.

In this embodiment, the spring placement box 1 includes a device load bearing spring 101, a spring connection shaft 102, a connection shaft spacer 103, a connector support plate 104, a tapered connector 105, a lubricating oil inlet 106, and a lubricating oil guide groove. 107. The mounting plate 108 is mounted with a spring connecting shaft 102 under the load bearing spring 101. The connecting shaft washer 103 is mounted on one side of the spring connecting shaft 102, and the connecting shaft washer 103 is mounted on one side. The connector supporting plate 104 is mounted on one side of the connector supporting plate 104, and the lubricating oil inlet 106 is mounted under the tapered connecting head 105. The lubricating oil inlet 106 is The lubricating oil guide groove 107 is mounted on the side, and a mounting plate 108 is mounted below the lubricating oil guiding groove 107.

In this embodiment, the load-bearing pressure reducing box 5 includes a bottom leg 501, a sliding ball 502, a damper box limiting shaft 503, a support shaft 504, a damper box 505, a damper spring 506, and a fixing block 507. The sliding ball 502 is mounted under the leg 501, and the damper box limiting shaft 503 is mounted under the sliding ball 502, and the supporting shaft 503 is mounted on one side of the damper box limiting shaft 503. The damper box 505 is mounted on one side of the support shaft 504, and the damper spring 506 is mounted inside the damper box 505, and the fixing block 507 is mounted on one side of the sliding ball 502.

In this embodiment, the spring placement box 1 is connected to the protection bearing 2, and the anti-crack protection head 3 is connected to the main support rod 4, and the main support rod 5 has a diameter of 6 cm.

In the present embodiment, the load-bearing pressure reducing box 5 is connected to the connecting crankshaft 6, and the rotary telescopic screw 7 is connected to the device mounting hole.

In the present embodiment, the crank adjuster 9 is coupled to the connecting crankshaft 6.

In this embodiment, the pressure compensation calculator 12 is connected to the PLC control circuit board 11, and the pressure sensor 13 is disposed on the top of the spring placement box 1.

In this embodiment, the model of the PLC control circuit board 11 is DMX512.

In this embodiment, the tapered connector 105 has a taper of 15°, the lubricating oil inlet 106 is a pressure inlet, and automatically closes when not in use, and the spring connecting shaft 102 passes through the bearing spring 101. The connecting shaft spacer 103 and the spring connecting shaft 102 are in a clearance fit.

In this embodiment, the support shaft 504 is made of a heat-resistant alloy steel, and the surface is spray-coated, and the shock absorbing spring 506 is disposed inside the shock absorbing box 505.

The specific working principle is that the spring placement box 1 is used to place a crawler spring of a heavy construction equipment, and the equipment load bearing spring 101 is used for bearing heavy equipment, and the spring connecting shaft 102 is used for the load bearing spring 101. Connecting and increasing the strength thereof, the connecting shaft spacer 103 is for lining the spring connecting shaft 102, and the connecting head supporting plate 104 is used for the taper The connector 105 is for supporting, and the tapered connector 105 is for connecting with the spring placement box 1 for feeding lubricating oil into the interior of the spring placement box 1 for the load-bearing spring 101 is lubricated, the lubricating oil guiding groove 107 is used for guiding the lubricating oil, the mounting plate 108 is used for fixing the bearing spring 101, and the protective bearing 2 is used for the tapered connection. The head 105 is protected, the anti-cracking protection head 3 is used to prevent the load-bearing spring 101 from collapsing when subjected to heavy pressure, and the main support rod 4 is used for supporting the device, and the load-bearing pressure reducing box 5 is used for The bottom leg 501 is used to support the damping box limiting shaft 503, and the sliding ball 502 is used to facilitate the sliding of the supporting shaft 504, and the damping box is limited. The shaft 503 is configured to define a sliding position of the support shaft 504. The support shaft 504 is supported by an external force. The shock absorbing spring 506 is placed inside the shock absorbing box 505 for damping the device. The fixing block 507 is configured to fix the sliding ball 502 The connecting crankshaft 6 is configured to connect the main support rod 4 with the rotating telescopic shaft 7, and at the same time, can automatically adjust its own width according to the tension received by the bearing spring 101, the rotating telescopic screw 7 For adjusting the height of the device, the device mounting hole 8 is used for mounting the device to the heavy construction equipment, the crank adjuster 9 is used for adjusting the connecting crankshaft 6, and the electrical control box 10 is used for Controlling the internal electrical components of the device, the PLC control circuit board 11 is configured to process the internal electrical signals of the device, and the pressure compensation calculator 12 is configured to perform compensation calculation according to the force pair received by the load-bearing spring 101, and The crank adjuster 9 is automatically adjusted to increase its own width to compensate the tension of the weighing spring 101, and the pressure sensor 13 is used to sense the pressure received by the load bearing spring 101.

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and that the present invention is only described in the foregoing description and the description of the present invention, without departing from the spirit and scope of the invention. Various changes and modifications are intended to be included within the scope of the invention as claimed. The invention claims The scope of protection is defined by the appended claims and their effects.

Claims (10)

A crawler spring tension retaining device for heavy construction equipment, comprising: a spring placing box (1), a protective bearing (2), a crack preventing protection head (3), a main supporting rod (4), and a connecting crankshaft (6) a rotating telescopic screw (7) and a device mounting hole (8), the protective bearing (2) is disposed above the spring placing box (1), and the anti-cracking protection head is disposed above the protective bearing (2) (3) The main support rod (4) is disposed above the anti-crack protection head (3), and a load-bearing pressure reduction box (5) is mounted above the main support rod (4), the load-bearing pressure reduction box (5) The connecting crankshaft (6) is mounted above, and the rotating telescopic screw (7) is mounted above the connecting crankshaft (6), and the device mounting hole is mounted above the rotating telescopic screw (7) 8) a crank adjuster (9) is mounted under the device mounting hole (8), and an electric control box (10) is installed under the crank adjuster (9), and the electric control box (10) is installed below a PLC control circuit board (11), a pressure compensation calculator (12) is installed under the PLC control circuit board (11), and a pressure sensor (13) is installed under the pressure compensation calculator (12). A track spring tension retaining device for a heavy construction equipment according to claim 1, wherein said spring placing box (1) comprises a device load bearing spring (101), a spring connecting shaft (102), and a connecting shaft washer. (103), a joint support plate (104), a tapered joint (105), a lubricating oil inlet (106), a lubricating oil guide groove (107), a mounting plate (108), and a load bearing spring (101) A spring connecting shaft (102) is mounted below, and the connecting shaft washer (103) is mounted on one side of the spring connecting shaft (102), and the connecting head support is mounted on one side of the connecting shaft washer (103) a plate (104), the taper connector (105) is mounted on one side of the connector support plate (104), and the lubricating oil inlet (106) is mounted under the tapered connector (105). The lubricating oil guide groove (107) is attached to one side of the lubricating oil inlet (106), and a mounting plate (108) is mounted below the lubricating oil guiding groove (107). A crawler spring tension retaining device for a heavy construction equipment according to claim 1 The utility model is characterized in that: the load-bearing pressure reducing box (5) comprises a bottom leg (501), a sliding ball (502), a shock box limit shaft (503), a support shaft (504), a shock box (505), and a shock absorption. a spring (506), a fixing block (507), the sliding ball (502) is installed under the bottom leg (501), and the damping box limiting shaft (503) is installed under the sliding ball (502). The support shaft (504) is mounted on one side of the damper box limiting shaft (503), and the damper box (505) is mounted on one side of the support shaft (504), and the damper box ( 505) The shock absorbing spring (506) is internally mounted, and the fixed block (507) is mounted on one side of the sliding ball (502). A track spring tension retaining device for a heavy construction equipment according to claim 1, wherein said spring placement box (1) is coupled to said protective bearing (2), said anti-crack protection head (3) Connected to the main support rod (4), the main support rod (5) has a diameter of 6 cm. A crawler spring tension retaining device for a heavy construction equipment according to claim 1, wherein said load-bearing pressure reducing tank (5) is connected to said connecting crankshaft (6), said rotary telescopic screw (7) Connected to the device mounting hole (8). A track spring tension retaining device for a heavy construction machine according to claim 1, characterized in that the crank adjuster (9) is connected to the connecting crankshaft (6). A track spring tension retaining device for a heavy construction equipment according to claim 1, wherein said pressure compensation calculator (12) is coupled to said PLC control circuit board (11), said pressure sensor ( 13) is placed on top of the spring placement box (1). A track spring tension retaining device for a heavy construction equipment according to claim 1, wherein said PLC control circuit board (11) is of the type DMX512. A track spring tension retaining device for a heavy construction equipment according to claim 2, wherein said tapered connector (105) has a taper of 15° and said lubricating oil inlet (106) is a pressure inlet. Automatically closed when not in use, the spring connecting shaft (102) from the load bearing spring (101) There is a gap fit between the connecting shaft washer (103) and the spring connecting shaft (102). A crawler spring tension retaining device for a heavy construction equipment according to claim 3, wherein said support shaft (504) is pressed from a heat resistant alloy steel, and the surface is spray-coated, said shock absorbing spring (506) is disposed inside the shock absorbing box (505).

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