Tool facilitating replacement of large chain buckle

Abstract

The tool comprises a wheel support and wheels, a fixed pressing lever is installed at one end of the wheel support, a supporting table is installed at the other end of the wheel support, a rectangular limiting block is installed at the front end of the surface of the supporting table, and a transverse through groove is formed in the supporting table. The bottom of the supporting table is provided with a [-shaped fixing plate, the cross arm end of the [-shaped fixing plate is located under the transverse through groove, the [-shaped fixing plate is rotationally connected with a two-way threaded lead screw, the two-way threaded lead screw is in threaded connection with two movable sliding blocks, and the two movable sliding blocks are provided with fixing grooves; clamping pieces are movably connected into the fixing grooves, the top ends of the clamping pieces penetrate through and stretch out of the transverse through grooves, and telescopic springs are installed in the fixing grooves. The utility model has the beneficial effects that the chain is supported by utilizing the lever principle, so that the buckle can be conveniently connected and replaced, the working efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coal loading vehicle technology, specifically a tool for easily replacing large chain buckles. Background Technology

[0002] The coal loading car is a hydraulic transmission coal loading unit that integrates loading, transfer and self-propelled movement. The main working conditions of the coal loading car are: heavy load, high dust, frequent start and stop, etc. The drive chain of the coal loading car is large, with a pitch of about 200mm, and the stress between the chain and gear is large.

[0003] The chains of coal loading cars are large and heavy. When replacing the large chains, there are no special tools and the space for replacement is limited. The chains need to be tightened and fixed manually. The chains are heavy and difficult to tighten and fix. The chain replacement is time-consuming, labor-intensive and inefficient.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0005] The purpose of this invention is to solve the above problems by designing a tool that facilitates the replacement of large chain buckles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tool for easily replacing large chain clips includes a wheel bracket and a wheel. A fixing bar is mounted at one end of the wheel bracket, and a support platform is mounted at the other end. A rectangular limiting block is mounted on the front end of the support platform. A transverse through groove is provided on the support platform, and an U-shaped fixing plate is mounted at the bottom of the support platform. The two vertical arms of the U-shaped fixing plate are located on either side of the transverse through groove, and the horizontal arm of the U-shaped fixing plate is located directly below the transverse through groove. A bidirectional threaded screw is rotatably connected to the U-shaped fixing plate, and two movable sliders are threadedly connected to the bidirectional threaded screw. Fixed grooves are provided on the two movable sliders, and clamping plates are movably connected within the fixed grooves. The top ends of the clamping plates extend through the transverse through groove, and a telescopic spring is installed within the fixed groove.

[0008] Furthermore, the fixed pressure bar has a storage cavity at the end away from the wheel bracket, and a movable pressure bar is slidably connected inside the storage cavity. One end of the movable pressure bar extends out of the storage cavity, and a fixed handle is installed at the end of the movable pressure bar extending out of the storage cavity. The surface of the fixed pressure bar has a connecting groove, which communicates with the storage cavity. The movable pressure bar has a fastening bolt, which passes through the connecting groove and extends out of the storage cavity.

[0009] Furthermore, one end of the telescopic spring is fixedly connected to the fixed groove, and the other end of the telescopic spring is fixedly connected to the bottom end of the clamping plate. The top end of the clamping plate is arc-shaped, and one side of the clamping plate is provided with a clamping arc surface.

[0010] Furthermore, a drive motor is installed on one side of the C-shaped fixing plate. The output end of the drive motor is fixedly connected to one end of a bidirectional threaded screw. The bidirectional threaded screw has two threaded grooves with opposite helical directions. The two movable sliders are respectively threadedly connected to the two threaded grooves, and the two movable sliders move in opposite directions.

[0011] Furthermore, diagonal reinforcing rods are installed on both sides of the wheel bracket, and the ends of the two diagonal reinforcing rods away from the wheel bracket are respectively fixedly connected to the fixed pressure bar and the support platform.

[0012] Furthermore, guide grooves are provided on both sides of the storage cavity, and guide sliders are installed on both sides of the movable pressure bar, with the guide sliders slidably connected to the guide grooves.

[0013] Compared with existing technologies, this technical solution has the following beneficial effects:

[0014] By pressing the fixed pressure bar downwards, the support platform tilts upwards, using the lever principle to support the chain. The rectangular limit block limits the chain, preventing it from falling off the support platform. Two clamping plates clamp the two ends of the chain respectively, facilitating the connection and replacement of buckles, thus improving work efficiency and reducing labor intensity.

[0015] The movable lever can slide inside the storage cavity. When the movable lever is retracted into the storage cavity, the size of the device can be reduced, making it easier to store. When the movable lever is pulled out of the storage cavity, the length of the fixed lever is increased, making it easier to lift the device. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a tool for easily replacing large chain buckles according to the present invention.

[0017] Figure 2 This is an enlarged top view of the support platform.

[0018] Figure 3 This is a side sectional view of the support platform.

[0019] Figure 4 This is an enlarged top view of the fixed pressure bar.

[0020] Figure 5 This is an enlarged sectional view of the fixed pressure bar.

[0021] In the diagram: 1. Wheel bracket; 2. Wheel; 3. Fixed pressure bar; 4. Support platform; 5. Rectangular limit block; 6. Horizontal through groove; 7. C-shaped fixing plate; 8. Bidirectional threaded screw; 9. Moving slider; 10. Fixed groove; 11. Clamping plate; 12. Telescopic spring; 13. Storage cavity; 14. Movable pressure bar; 15. Fixed handle; 16. Connecting through groove; 17. Fastening bolt; 18. Clamping arc surface; 19. Drive motor; 20. Diagonal tie rod; 21. Guide groove; 22. Guide slider. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that 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 a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] This utility model provides, for example Figure 1-5 The tool shown is for easy replacement of large chain buckles. It includes a wheel bracket 1 and a wheel 2. A fixing bar 3 is installed at one end of the wheel bracket 1, and a support platform 4 is installed at the other end of the wheel bracket 1. A rectangular limiting block 5 is installed at the front end of the surface of the support platform 4. A transverse through groove 6 is provided on the support platform 4. A U-shaped fixing plate 7 is installed at the bottom of the support platform 4. The two vertical arms of the U-shaped fixing plate 7 are located on both sides of the transverse through groove 6, and the horizontal arm of the U-shaped fixing plate 7 is located directly below the transverse through groove 6. A bidirectional threaded screw 8 is rotatably connected to the U-shaped fixing plate 7. Two movable sliders 9 are threadedly connected to the bidirectional threaded screw 8. The two movable sliders 9 are provided with fixing grooves 10. A clamping piece 11 is movably connected in the fixing groove 10. The top end of the clamping piece 11 extends through the transverse through groove 6. A telescopic spring 12 is installed in the fixing groove 10.

[0025] When overhauling the main chain, the wheel bracket 1 is pushed by the fixed pressure bar 3, causing the wheel 2 at the bottom of the wheel bracket 1 to rotate, facilitating movement. This positions the support platform 4 below the chain. The operator presses the fixed pressure bar 3 downwards, causing the support platform 4 to tilt upwards, using leverage to support the chain. The rectangular limit block 5 limits the chain, preventing it from falling off the support platform 4. The chain presses against the two clamping plates 11, applying pressure to them. The clamping plates 11 then apply pressure to the telescopic spring 12, causing it to deform and contract. The clamping plates 11 then move downwards along the fixed groove 10. The clamping plate 11 is moved so that its top end is on the same horizontal plane as the support platform 4. The double-threaded screw 8 rotates and drives the two moving sliders 9 to move relative to each other. The moving sliders 9 slide along the transverse through groove 6 and drive the clamping plate 11 to move. When the clamping plate 11 moves to the space between the two chain pins on the chain, under the elastic force of the telescopic spring 12, the clamping plate 11 rises along the fixed groove 10 and passes through the space between the two chain pins. The two clamping plates 11 clamp the two ends of the chain respectively, which facilitates the connection and replacement of the buckle, improves work efficiency and reduces labor intensity.

[0026] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 4 Included with instruction manual Figure 5 The fixed pressure bar 3 has a storage cavity 13 at the end away from the wheel bracket 1. A movable pressure bar 14 is slidably connected in the storage cavity 13. One end of the movable pressure bar 14 extends out of the storage cavity 13. A fixed handle 15 is installed at the end of the movable pressure bar 14 that extends out of the storage cavity 13. A connecting groove 16 is provided on the surface of the fixed pressure bar 3. The connecting groove 16 communicates with the storage cavity 13. A fastening bolt 17 is provided on the movable pressure bar 14. The fastening bolt 17 passes through the connecting groove 16 and extends out of the storage cavity 13.

[0027] The movable pressure bar 14 can slide within the storage cavity 13. After the movable pressure bar 14 is retracted into the storage cavity 13, the size of the device can be reduced, making it easier to store the device. When the chain is heavy and difficult to lift, the movable pressure bar 14 can be pulled out of the storage cavity 13. When the movable pressure bar 14 slides, it drives the fastening bolt 17 to slide along the connecting through groove 16. After the movable pressure bar 14 is completely pulled out, the fastening bolt 17 is tightened to fix the movable pressure bar 14. By pulling out the movable pressure bar 14, the length of the fixed pressure bar 3 is increased, making it easier to lift.

[0028] Refer to the instruction manual appendix Figure 3 One end of the telescopic spring 12 is fixedly connected to the fixed groove 10, and the other end of the telescopic spring 12 is fixedly connected to the bottom end of the clamping plate 11. The top end of the clamping plate 11 is arc-shaped, and a clamping arc surface 18 is provided on one side of the clamping plate 11.

[0029] The top of the clamping plate 11 is arc-shaped, and one side of the clamping plate 11 is provided with a clamping arc surface 18 to prevent sharp objects from damaging the chain and to prevent the chain from wearing out.

[0030] Refer to the instruction manual appendix Figure 3 A drive motor 19 is installed on one side of the U-shaped fixed plate 7. The output end of the drive motor 19 is fixedly connected to one end of the bidirectional threaded screw 8. The bidirectional threaded screw 8 has two threaded grooves with opposite spiral directions. Two movable sliders 9 are respectively threadedly connected to the two threaded grooves, and the two movable sliders 9 move in opposite directions.

[0031] When the drive motor 19 starts working, the output end of the drive motor 19 drives the bidirectional threaded screw 8 to rotate. The rotation of the bidirectional threaded screw 8 drives the two movable sliders 9 to move relative to each other, and the two movable sliders 9 move closer or further away from each other.

[0032] Refer to the instruction manual appendix Figure 1 The wheel bracket 1 is equipped with diagonal reinforcing bars 20 on both sides. The ends of the two diagonal reinforcing bars 20 away from the wheel bracket 1 are respectively fixedly connected to the fixed pressure bar 3 and the support platform 4.

[0033] Two diagonal reinforcing rods 20 support the fixed pressure bar 3 and the support platform 4 respectively, preventing the fixed pressure bar 3 and the support platform 4 from bending and deforming, thus improving their service life.

[0034] Refer to the instruction manual appendix Figure 5 The storage cavity 13 is provided with guide grooves 21 on both sides, and guide sliders 22 are installed on both sides of the movable pressure bar 14. The guide sliders 22 are slidably connected to the guide grooves 21.

[0035] When the movable pressure bar 14 moves, the movable pressure bar 14 drives the guide slider 22 to slide along the guide groove 21, and the guide slider 22 and the guide groove 21 guide the movable pressure bar 14.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tool for easily replacing large chain clips, comprising a wheel bracket (1) and a wheel (2), characterized in that, One end of the wheel bracket (1) is equipped with a fixed pressure bar (3), and the other end of the wheel bracket (1) is equipped with a support platform (4). A rectangular limiting block (5) is installed on the front end of the surface of the support platform (4). A transverse through groove (6) is provided on the support platform (4). A U-shaped fixing plate (7) is installed at the bottom of the support platform (4). The two vertical arms of the U-shaped fixing plate (7) are located on both sides of the transverse through groove (6). The horizontal arm of the U-shaped fixing plate (7) is located directly below the transverse through groove (6). A bidirectional threaded screw (8) is rotatably connected to the U-shaped fixing plate (7). Two movable sliders (9) are threadedly connected to the bidirectional threaded screw (8). A fixing groove (10) is provided on the two movable sliders (9). A clamping piece (11) is movably connected in the fixing groove (10). The top end of the clamping piece (11) extends through the transverse through groove (6). A telescopic spring (12) is installed in the fixing groove (10).

2. The tool for easily replacing large chain buckles according to claim 1, characterized in that, The fixed pressure bar (3) has a storage cavity (13) at the end away from the wheel bracket (1). A movable pressure bar (14) is slidably connected in the storage cavity (13). One end of the movable pressure bar (14) extends out of the storage cavity (13). A fixed handle (15) is installed at the end of the movable pressure bar (14) that extends out of the storage cavity (13). A connecting groove (16) is provided on the surface of the fixed pressure bar (3). The connecting groove (16) communicates with the storage cavity (13). A fastening bolt (17) is provided on the movable pressure bar (14). The fastening bolt (17) passes through the connecting groove (16) and extends out of the storage cavity (13).

3. The tool for easily replacing large chain buckles according to claim 1, characterized in that, One end of the telescopic spring (12) is fixedly connected to the fixed groove (10), and the other end of the telescopic spring (12) is fixedly connected to the bottom end of the clamping plate (11). The top end of the clamping plate (11) is arc-shaped, and a clamping arc surface (18) is provided on one side of the clamping plate (11).

4. The tool for easily replacing large chain buckles according to claim 1, characterized in that, A drive motor (19) is installed on one side of the C-shaped fixing plate (7). The output end of the drive motor (19) is fixedly connected to one end of the bidirectional threaded screw (8). The bidirectional threaded screw (8) has two threaded grooves with opposite spiral directions. The two movable sliders (9) are respectively threaded to the two threaded grooves. The two movable sliders (9) move in opposite directions.

5. The tool for easily replacing large chain buckles according to claim 1, characterized in that, The wheel bracket (1) is equipped with diagonal reinforcing rods (20) on both sides. The ends of the two diagonal reinforcing rods (20) away from the wheel bracket (1) are fixedly connected to the fixed pressure bar (3) and the support platform (4) respectively.

6. The tool for easily replacing large chain buckles according to claim 2, characterized in that, The storage cavity (13) is provided with guide grooves (21) on both sides, and guide sliders (22) are installed on both sides of the movable pressure bar (14). The guide sliders (22) are slidably connected to the guide grooves (21).

Images