Crawler-type guide wheel

Abstract

The utility model relates to the technical field of guide wheels, and discloses a crawler-type guide wheel, which comprises a wheel body, two groups of fixing blocks and two-way screw rods, two groups of semicircular wear-resistant sleeves are detachably mounted on the outer side of the wheel body, and the two groups of fixing blocks are respectively welded on the inner walls of the top end and the bottom end of the wheel body. The insertion blocks are movably connected with the insertion grooves, two sets of wear-resistant sleeves are conveniently spliced to the outer side of the wheel body, the connection blocks are movably connected with the connection grooves, the connection rotary knobs are rotated, the two-way lead screws can be driven to rotate, and therefore the two sets of sliding blocks can be driven to relatively move in the sliding grooves; one end of a fixing pin is further pushed to move out of a sliding groove and be inserted into a fixing groove in the outer side of a connecting block, so that a wheel body is fixedly connected with a wear-resistant sleeve, in the relative movement process of the two sets of sliding blocks, a threaded rod can be pushed to penetrate through a positioning groove, then a positioning nut is screwed, and the two sets of sliding blocks can be limited and fixed; and the connecting stability of the connecting block and the wheel body is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of guide wheels, in particular to a crawler type guide wheel. Background Art

[0002] The guide wheel of the excavator is an important component of the walking system of crawler bulldozers, excavators and related engineering machinery. The function of the guide wheel is to guide the crawler walking.

[0003] After searching, the publication number CN219687474U discloses a guide wheel for a crawler machinery, including a wheel body, a wheel wall of the wheel body is provided with a first wear-resistant sleeve and a second wear-resistant sleeve, the inner wall of the first wear-resistant sleeve and the inner wall of the second wear-resistant sleeve are both fixed with a fixing screw, the wheel wall of the wheel body is provided with a mounting hole for the fixing screw to pass through, and the rod wall of the fixing screw is provided with a fixing nut, and the inner wall of the wheel body is provided with an anti-loosening mechanism connected to the fixing nut.

[0004] In the process of realizing the utility model, the inventors found that at least the following problems exist in the prior art and have not been solved: the first wear-resistant sleeve and the second wear-resistant sleeve are firmly connected to the wheel body by means of the provided fixing screw and fixing nut; the anti-loosening cover is inserted into the fixing nut by means of the provided anti-loosening cover, connecting rod, spring, sliding rod and connecting groove, which can loosen the fixing nut; however, in the above case, the fixing nut is placed on the inner side of the anti-loosening cover, which is inconvenient for tightening and disassembling the fixing nut; and when tightening and disassembling the fixing nut, the staff needs to push the connecting rods on both sides of the anti-loosening cover to separate the two sets of anti-loosening covers; during the operation, the staff cannot let go, otherwise the spring will reset, affecting the staff's tightening and disassembly of the fixing nut.

[0005] Therefore, we propose a crawler guide wheel that can solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a crawler type guide wheel, which solves the problems raised in the background technology.

[0007] The cam is an axially actuated wheel which is adapted to move relative to the wheel hubs and to engage with the guide rails at the bottom of the wheel hubs, the guide rails being adapted to move relative to the wheel hubs at the bottom of the wheel hubs.

[0008] As an optional solution of the technical solution of the present application, a slot is provided at one end of the bottom side of the wear-resistant sleeve, and an insert block is fixedly connected to the other end of the bottom side of the wear-resistant sleeve, and two groups of the wear-resistant sleeves are plugged into the slot through the insert block.

[0009] As an optional solution of the technical solution of the present application, the bidirectional screw is rotatably connected to the inner walls on both sides of the slide groove through bearings, and a knob is fixedly installed on one end of the bidirectional screw placed on the outside of the fixed block.

[0010] As an optional solution of the technical solution of the present application, the connecting block is movably connected to the connecting groove, and the sizes of the connecting block and the connecting groove match.

[0011] As an optional solution of the technical solution of the present application, the fixing pin is movably connected to the fixing slot, the size of the fixing pin matches that of the fixing slot, and the size of the fixing pin matches that of the sliding slot.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: through the active connection between the plug block and the slot, it is convenient to splice the two groups of wear-resistant sleeves on the outside of the wheel body; through the active connection between the connecting block and the connecting groove, the connecting knob can be turned to drive the two-way screw rod to rotate, thereby driving the two groups of sliders to move relative to each other in the slide groove, further pushing one end of the fixing pin out of the slide groove and inserting it into the fixing groove on the outside of the connecting block, so that the wheel body and the wear-resistant sleeve are fixedly connected; during the relative movement of the two groups of sliders, the threaded rod can be pushed through the positioning groove, and then the positioning nut can be tightened to limit and fix the two groups of sliders, thereby further improving the connection stability between the connecting block and the wheel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a front view of a crawler guide wheel of the utility model;

[0015] Figure 2 The figure shows the A part of the crawler guide wheel of the utility model.

[0016] In the figure: 1. wheel body; 11. wear-resistant sleeve; 12. fixing block; 13. connecting groove; 14. connecting block; 15. slide groove; 16. slider; 17. bidirectional screw rod; 18. fixing pin; 19. fixing groove; 2. threaded rod; 21. positioning groove; 22. positioning nut; 23. knob; 24. plug block; 25. slot. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 2 The utility model provides a technical solution: a crawler guide wheel, including a wheel body 1, two groups of semicircular wear-resistant sleeves 11 are detachably installed on the outer side of the wheel body 1, and also include two groups of fixing blocks 12 and bidirectional screw rods 17, the two groups of fixing blocks 12 are respectively welded to the inner wall of the top and bottom ends of the wheel body 1, the upper end and the lower end of the outer side of the wheel body 1 are provided with connecting grooves 13, the connecting grooves 13 extend to the inside of the fixing blocks 12, a connecting block 14 is welded to the middle of the inner wall of the wear-resistant sleeve 11, the connecting block 14 is movably connected to the connecting groove 13, and the two ends of the bottom side of the fixing block 12 are symmetrically provided with sliding grooves 15, and the inner side of the sliding groove 15 is slidably connected with a slider 16, a bidirectional screw rod 17 horizontally passes through the middle of the two groups of sliders 16 and is threadedly connected to the sliders 16, the bidirectional screw rod 17 is rotatably connected to the inner walls on both sides of the slide groove 15 through bearings, and the bidirectional screw rod 17 is placed on the outer side of the fixed block 12 and fixedly installed with a knob 23 at one end, and a fixing pin 18 is horizontally welded on the upper side of the slider 16 close to the connecting groove 13. The lower ends of both sides of the connecting block 14 are symmetrically provided with fixing grooves 19, and the fixing pins 18 are movably connected with the fixing grooves 19. The sizes of the fixing pins 18 and the fixing grooves 19 match, the sizes of the fixing pins 18 and the slide groove 15 match, and the sizes of the connecting block 14 and the connecting groove 13 match.

[0018] In this technical solution, when two groups of wear-resistant sleeves 11 are spliced ​​on the outer side of the wheel body 1, the connecting block 14 on the inner side of the wear-resistant sleeve 11 can be inserted into the connecting groove 13 opened on the outer side of the wheel body 1, and the staff can drive the bidirectional screw 17 to rotate by turning the knob 23. During the rotation of the bidirectional screw 17, the two groups of sliders 16 can be driven to move relative to each other in the slide groove 15, and further push one end of the fixing pin 18 to move out of the slide groove 15 and insert it into the fixing groove 19 on the outer side of the connecting block 14, so that the fixing block 12 is fixedly connected to the connecting block 14, thereby fixing the wear-resistant sleeve 11 on the outer side of the wheel body 1.

[0019] In this embodiment, a threaded rod 2 is horizontally welded to the lower end of one group of sliders 16, and a positioning groove 21 is horizontally penetrated through the lower end of another group of sliders. The threaded rod 2 penetrates the positioning groove 21 and is movably connected. One end of the threaded rod 2 is threadedly connected to a positioning nut 22.

[0020] In this technical solution, during the relative movement of the two groups of sliders 16, the threaded rod 2 can be pushed through the positioning groove 21, and then the positioning nut 22 can be tightened to limit and fix the two groups of sliders 16, further improving the connection stability between the connecting block 14 and the fixing block 12, avoiding the loosening of the two-way screw rod 17, and causing the slider 16 to pull the fixing pin 18 out of the fixing groove 19, affecting the connection stability between the wheel body 1 and the wear-resistant sleeve 11. When the wear-resistant sleeve 11 needs to be replaced, the positioning nut 22 is removed, and the knob 23 is rotated in the opposite direction. The slider 16 can pull the fixing pin 18 out of the fixing groove 19 and retract it into the slide groove 15, and the wear-resistant sleeve 11 can be removed.

[0021] In this embodiment, a slot 25 is provided at one end of the bottom side of the wear-resistant sleeve 11 , and an insert block 24 is fixedly connected to the other end of the bottom side of the wear-resistant sleeve 11 . The two groups of wear-resistant sleeves 11 are plugged into the slot 25 via the insert block 24 .

[0022] In this technical solution, the insert block 24 is movably connected to the slot 25 , so that the two sets of wear-resistant sleeves 11 can be conveniently spliced ​​into a circular ring and placed on the outside of the wheel body 1 , which can protect the wheel body 1 and thus improve the wear resistance of the wheel body 1 .

[0023] When a crawler guide wheel is in use, the insert block 24 is movably connected with the slot 25, so that the two sets of wear-resistant sleeves 11 are conveniently spliced ​​into a ring and placed on the outside of the wheel body 1, which can protect the wheel body 1, thereby improving the wear resistance of the wheel body 1. When the two sets of wear-resistant sleeves 11 are spliced ​​on the outside of the wheel body 1, the connecting block 14 on the inner side of the wear-resistant sleeve 11 can be inserted into the connecting groove 13 provided on the outside of the wheel body 1. The staff can drive the two-way screw rod 17 to rotate by turning the knob 23. During the rotation of the two-way screw rod 17, the two sets of sliders 16 can be driven to move relative to each other in the slide groove 15, and further push one end of the fixing pin 18 to move out of the slide groove 15 and insert it into the fixing groove 19 on the outside of the connecting block 14, so that the fixing block 1 2 is fixedly connected with the connecting block 14, so that the wear-resistant sleeve 11 is fixedly installed on the outer side of the wheel body 1. During the relative movement of the two sets of sliders 16, the threaded rod 2 can be pushed to pass through the positioning groove 21, and then the positioning nut 22 is tightened to limit and fix the two sets of sliders 16, further improving the connection stability between the connecting block 14 and the fixing block 12, avoiding the loosening of the two-way screw rod 17, so that the slider 16 pulls the fixing pin 18 out of the fixing groove 19, affecting the connection stability between the wheel body 1 and the wear-resistant sleeve 11. When the wear-resistant sleeve 11 needs to be replaced, the positioning nut 22 is removed, and the knob 23 is rotated in the opposite direction. The slider 16 can pull the fixing pin 18 out of the fixing groove 19 and put it into the slide groove 15, and the wear-resistant sleeve 11 can be disassembled.

Claims

1. A crawler guide wheel, comprising a wheel body (1), wherein two sets of semicircular wear-resistant sleeves (11) are detachably mounted on the outer side of the wheel body (1), characterized in that: The invention also comprises two groups of fixing blocks (12) and a bidirectional screw rod (17), wherein the two groups of fixing blocks (12) are respectively welded to the inner wall of the top end and the bottom end of the wheel body (1), and the upper end and the lower end of the outer side of the wheel body (1) are provided with connecting grooves (13), and the connecting grooves (13) extend to the inside of the fixing blocks (12). A connecting block (14) is welded to the middle of the inner wall of the wear-resistant sleeve (11), and sliding grooves (15) are symmetrically provided at both ends of the bottom side of the fixing block (12), and a slider (16) is slidably connected to the inner side of the sliding groove (15), and the bidirectional screw rod (17) is water-tight. A fixing pin (18) is horizontally welded to the upper part of the slider (16) near the connecting groove (13), and fixing grooves (19) are symmetrically provided at the lower ends of both sides of the connecting block (14). A threaded rod (2) is horizontally welded to the lower end of one group of the sliders (16), and a positioning groove (21) is horizontally penetrated to the lower end of the other group of the sliders. The threaded rod (2) penetrates the positioning groove (21) and is movably connected. One end of the threaded rod (2) is threadedly connected to a positioning nut (22).

2. A crawler guide wheel according to claim 1, characterized in that: A slot (25) is provided at one end of the bottom side of the wear-resistant sleeve (11), and an insert block (24) is fixedly connected to the other end of the bottom side of the wear-resistant sleeve (11). Two groups of the wear-resistant sleeves (11) are plugged into the slot (25) via the insert block (24).

3. The crawler guide wheel according to claim 1, characterized in that: The bidirectional screw rod (17) is rotatably connected to the inner walls on both sides of the slide groove (15) via bearings, and a knob (23) is fixedly mounted on one end of the bidirectional screw rod (17) located outside the fixed block (12).

4. The crawler guide wheel according to claim 1, characterized in that: The connection block (14) is movably connected to the connection groove (13), and the sizes of the connection block (14) and the connection groove (13) match each other.

5. The crawler guide wheel according to claim 1, characterized in that: The fixing pin (18) is movably connected to the fixing groove (19), the sizes of the fixing pin (18) and the fixing groove (19) match each other, and the sizes of the fixing pin (18) and the sliding groove (15) match each other.

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