Linkage assembly and engineering vehicle

Abstract

The utility model provides a linkage assembly and an engineering vehicle, the linkage assembly comprises a rotating main part, and a first guide rod and a second guide rod which are positioned on the two sides of the rotating main part; the shaft pin sequentially penetrates through the first guide rod, the rotating main part and the second guide rod; a clamping groove is formed in the surface, deviating from the rotating main part, of the first guide rod, a clamping head is arranged at the first end, penetrating out of the first guide rod, of the shaft pin, and the clamping head is connected with the clamping groove in a clamped mode; at least one threaded hole is formed in the second end of the shaft pin, a check block is arranged on the side, away from the rotating main piece, of the second guide rod, mounting holes corresponding to the threaded holes are formed in the check block, bolts sequentially penetrate through the mounting holes and the threaded holes, and the check block is fixedly connected with the shaft pin; therefore, rotation of the shaft pin can be limited, axial movement of the shaft pin can be limited, and the problem that abrasion is easily caused due to unlimited rotation in the working process is solved.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a linkage component and an engineering vehicle. Background Technology

[0002] A bucket truck (also known as a loader or scraper) is a type of construction machinery widely used in construction, mining, agriculture, and other fields. It is primarily used for earthmoving operations, such as excavation, loading, transportation, and unloading. With the acceleration of industrialization, the demand for construction machinery continues to grow, and bucket trucks have gradually developed into an important piece of construction equipment. However, on existing bucket trucks, one end of the axle connecting the boom and guide rod rotates unrestricted during operation, easily causing wear. The other end is fixed with bolts, and the exposed part frequently collides with rocks, causing the bolts to loosen and fall off quickly, resulting in damage to the bucket. Utility Model Content

[0003] The purpose of this utility model is to provide a linkage component and engineering vehicle to solve the problem in the prior art where one end of the axle pin connecting the boom and the guide rod on a bucket truck rotates without restriction during operation, which easily causes wear.

[0004] To address the aforementioned technical problems, this utility model provides a linkage component, comprising:

[0005] Rotating main component and first and second guide rods located on both sides of the rotating main component;

[0006] A pivot pin, which sequentially passes through the first guide rod, the rotating main component, and the second guide rod;

[0007] The first guide rod has a snap-fit ​​groove on its surface away from the rotating main component, and the first end of the shaft pin that extends from the first guide rod has a snap-fit ​​connector that snaps into the snap-fit ​​groove. The second end of the shaft pin has at least one threaded hole, and the side of the second guide rod away from the rotating main component has a stop block with a mounting hole corresponding to the threaded hole. A bolt is passed through the mounting hole and the threaded hole in sequence, and the stop block is fixedly connected to the shaft pin.

[0008] Optionally, in the linkage assembly, the mounting hole includes a countersunk hole, the bolt is engaged with the stop and the pin, and the head of the bolt does not protrude from the countersunk hole.

[0009] Optionally, in the linkage assembly, the first guide rod has a block-shaped protrusion on its surface away from the rotating main component, and the snap-fit ​​groove is provided on the side of the block-shaped protrusion facing the shaft pin.

[0010] Optionally, in the linkage assembly, the contact portions between the snap-fit ​​groove and the snap-fit ​​connector are both formed as arc surfaces.

[0011] Optionally, in the linkage assembly, the first guide rod and the block protrusion are integrally formed.

[0012] Optionally, the linkage assembly further includes a snap-fit ​​component, one end of which is provided with a through hole and the other end with a snap-fit ​​connector; through the through hole, the snap-fit ​​component is sleeved on the first end of the shaft pin and fixedly connected to the shaft pin.

[0013] To achieve the above objectives, this utility model provides an engineering vehicle, which includes the linkage components described above.

[0014] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0015] In the above scheme, a snap-fit ​​connector is provided at the first end of the pin through which the first guide rod, the rotating main component, and the second guide rod are sequentially inserted, and snaps into the snap-fit ​​groove of the first guide rod. The mounting hole of the stop block on the side of the second guide rod away from the rotating main component and the threaded hole at the second end of the pin are sequentially fitted with bolts to achieve a fixed connection between the pin and the stop block. This achieves both limiting the rotation of the pin and limiting its axial movement, avoiding the problem of unrestricted rotation during operation, which can easily cause wear. Attached Figure Description

[0016] Figure 1 This is one of the schematic diagrams of the shaft pin assembly described in this utility model embodiment;

[0017] Figure 2 This is a second schematic diagram of the shaft pin assembly described in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the stop block of the shaft pin assembly described in an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the shaft pin of the shaft pin assembly described in this embodiment of the utility model.

[0020] Symbol explanation:

[0021] 100 - Rotating main component; 200 - First guide rod; 210 - Snap-fit ​​groove; 300 - Second guide rod; 400 - Shaft pin; 410 - Snap-fit ​​connector; 420 - Threaded hole; 500 - Stop; 510 - Mounting hole. Detailed Implementation

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

[0023] This utility model addresses the problem in the prior art where one end of the pivot pin connecting the boom and guide rod on a bucket truck rotates without restriction during operation, easily causing wear. It provides a linkage component and an engineering vehicle.

[0024] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a linkage component, which includes:

[0025] Rotating main component 100 and first guide rod 200 and second guide rod 300 located on both sides of the rotating main component 100;

[0026] A pivot pin 400 is provided, through which the first guide rod 200, the rotating main component 100, and the second guide rod 300 are sequentially passed;

[0027] The first guide rod 200 has a snap-fit ​​groove 210 on its surface away from the rotating main component 100, and the first end of the shaft pin 400 that protrudes from the first guide rod 200 has a snap-fit ​​connector 410 that snaps into the snap-fit ​​groove 210. The second end of the shaft pin 400 has at least one threaded hole 420, and the second guide rod 300 has a stop block 500 on its side away from the rotating main component 100. The stop block 500 has a mounting hole 510 corresponding to the threaded hole 420. The stop block 500 is fixedly connected to the shaft pin 400 by bolts that pass through the mounting hole 510 and the threaded hole 420 in sequence.

[0028] In this embodiment, a snap-fit ​​connector 410 is provided at the first end of the pin 400, through which the first guide rod 200, the rotating main component 100, and the second guide rod 300 are sequentially inserted, to engage with the snap-fit ​​groove 210 of the first guide rod 200. The mounting hole 510 of the stop block 500 located on the side of the second guide rod 300 opposite to the rotating main component 100 and the threaded hole 420 at the second end of the pin 400 are sequentially fitted with bolts to achieve a fixed connection between the pin 400 and the stop block 500. This achieves both limiting the rotation and axial movement of the pin 400, preventing unrestricted rotation during operation and avoiding wear problems.

[0029] Optionally, in the linkage assembly, the bolt is engaged with the stop 500 and the pin 400, and the head of the bolt does not protrude from the countersunk hole.

[0030] In this embodiment, such as Figure 3 As shown, the mounting hole 510 on the stop block 500 includes the countersunk hole, which can cover the head of the bolt so that it does not protrude and protect the bolt from being hit by stones.

[0031] Optionally, in the linkage assembly, the first guide rod 200 has a block-shaped protrusion on its surface away from the rotating main component 100, and the snap-fit ​​groove 210 is provided on the side of the block-shaped protrusion facing the shaft pin 400.

[0032] In this embodiment, the snap-fit ​​groove 210 is provided on the side of the block protrusion on the surface of the first guide rod 200 away from the rotating main component 100 facing the shaft pin 400, so as to snap-fit ​​with the snap-fit ​​joint 410 of the shaft pin 400.

[0033] Optionally, in the linkage assembly, the portion of the locking groove 210 that contacts the locking connector 410 is formed as an arc surface.

[0034] In this embodiment, the part of the snap-fit ​​groove 210 that contacts the snap-fit ​​connector 410 is designed to restrict the rotation of the pin 400 and thus rubs against each other. If a right-angle structure is used, the force will be concentrated and the pressure will be too high, making it easy to be damaged. Therefore, a rounded surface is used to improve the structural stability.

[0035] Optionally, in the linkage assembly, the first guide rod 200 and the block protrusion are integrally formed.

[0036] In this embodiment, the large block-shaped protrusion on the surface of the first guide rod 200 away from the rotating main component 100 is fixedly installed to the first guide rod 200 by integral molding or welding.

[0037] Optionally, the linkage assembly further includes a snap-fit ​​component, one end of which is provided with a through hole and the other end of which is provided with a snap-fit ​​connector 410; through the through hole, the snap-fit ​​component is sleeved on the first end of the shaft pin 400 and fixedly connected to the shaft pin 400.

[0038] In this embodiment, such as Figure 4As shown, the snap-fit ​​member is sleeved at the first end of the shaft pin 400. The snap-fit ​​member is fixed to the shaft pin 400 by integral molding or welding. The snap-fit ​​member 410 on the snap-fit ​​member engages with the snap-fit ​​groove 210 to restrict the rotation of the shaft pin 400, thereby avoiding unrestricted rotation during operation and preventing wear.

[0039] To achieve the above objectives, this utility model also provides an engineering vehicle by means of integral molding or welding, which includes the linkage components described above.

[0040] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A linkage component, characterized in that, include: Rotating main component (100) and a first guide rod (200) and a second guide rod (300) located on both sides of the rotating main component (100); A pivot pin (400) is provided, through which the first guide rod (200), the rotating main component (100), and the second guide rod (300) are sequentially passed; The first guide rod (200) has a snap-fit ​​groove (210) on its surface away from the rotating main component (100), and the first end of the shaft pin (400) that passes through the first guide rod (200) has a snap-fit ​​connector (410) that snaps into the snap-fit ​​groove (210). The second end of the shaft pin (400) has at least one threaded hole (420), and the second guide rod (300) has a stop block (500) on its side away from the rotating main component (100). The stop block (500) has a mounting hole (510) corresponding to the threaded hole (420). The stop block (500) is fixedly connected to the shaft pin (400) by bolts passing through the mounting hole (510) and the threaded hole (420) in sequence.

2. The linkage component according to claim 1, characterized in that, The mounting hole (510) includes a countersunk hole, the bolt is engaged with the stop (500) and the pin (400), and the head of the bolt does not protrude in the countersunk hole.

3. The linkage component according to claim 1, characterized in that, The first guide rod (200) has a block-shaped protrusion on its surface away from the rotating main component (100), and the snap-fit ​​groove (210) is provided on the side of the block-shaped protrusion facing the shaft pin (400).

4. The linkage component according to claim 1, characterized in that, The contact portion between the snap-fit ​​groove (210) and the snap-fit ​​connector (410) is formed as an arc surface.

5. The linkage component according to claim 3, characterized in that, The first guide rod (200) is integrally formed with the block protrusion.

6. The linkage component according to claim 1, characterized in that, The linkage component also includes a snap-fit ​​component, one end of which is provided with a through hole and the other end is provided with a snap-fit ​​connector (410); through the through hole, the snap-fit ​​component is sleeved on the first end of the shaft pin (400) and fixedly connected to the shaft pin (400).

7. An engineering vehicle, characterized in that, Includes the linkage component as described in any one of claims 1-6.

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