Safety excavator thrust wheel

Abstract

The utility model relates to the technical field of excavator thrust wheels, in particular to a safety type excavator thrust wheel which comprises a thrust wheel body, a wheel shaft is arranged on the thrust wheel body in a matched mode, a fixing shaft is rotationally installed on the wheel shaft through a damping bearing, and a pressing and holding piece corresponding to the fixing shaft is arranged on the thrust wheel body. The fixing shaft is fixedly sleeved with a limiting plate, the thrust wheel body is provided with a limiting hole used for being sleeved with the limiting plate and the fixing shaft in a sliding mode, and a connecting assembly used for clamping and fixing the wheel shaft and the pressing and holding piece is arranged between the wheel shaft and the pressing and holding piece. According to the thrust wheel, the limiting plate and the limiting hole are arranged, and the fixing shaft is connected with the limiting plate, so that the fixing shaft is rotated after penetrating through the limiting hole, and after the limiting plate deviates from the initial state, the wheel shaft and the thrust wheel main body cannot fall off immediately when the wheel shaft and the thrust wheel main body are disassembled and assembled; and the safety when the wheel shaft and the thrust wheel main body are disassembled and assembled can be improved.

Description

Technical Field

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

[0002] The track rollers are used to support the weight of the tractor and roll on the track rails (track links) or track shoes. They are also used to limit the track to prevent lateral slippage. When the tractor turns, the track rollers force the track to slide on the ground. The track rollers are often in mud, water and dust, and are subject to strong impacts, so they are required to have reliable sealing and wear-resistant wheel rims.

[0003] The prior art mostly adopts a kind of easily replaceable supporting roller for excavator disclosed by announcement number CN218907434U. The utility model overcomes the problem that the existing wheel axle, floating ring and bushing are heavy in weight, and multiple people are required to support for a long time during disassembly and installation, which is time-consuming and laborious, resulting in a long replacement time for the supporting roller. At the same time, the long-term installation and lifting by multiple people is likely to cause high labor intensity, and there are certain safety hazards.

[0004] In the prior art, when disassembling the supporting wheel, the worker needs to hold the supporting wheel with one hand and disassemble and assemble the holding piece with the other hand to avoid separation of the supporting wheel body and the axle. The worker needs to perform different operations with both hands, which is time-consuming and laborious, resulting in a long time for replacing the supporting wheel. When the worker performs two operations at the same time, it is very easy for the worker to be distracted or too focused on one operation, which makes the worker have certain safety hazards when performing the operation. Utility Model Content

[0005] The utility model aims to solve the problem that the two hands of the workers need to perform different operations in the prior art, and proposes a safe excavator supporting wheel.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A safety type excavator supporting wheel, comprising a supporting wheel body, the supporting wheel body is matched with a wheel axle, the lower end of the wheel axle is fixedly connected with a positioning plate, a fixed shaft is rotatably mounted on the wheel axle through a damping bearing, a holding piece corresponding to the fixed shaft is arranged on the supporting wheel body, a limiting plate is fixedly sleeved on the fixed shaft, and a limiting hole for slidingly sleeved the limiting plate and the fixed shaft is opened on the supporting wheel body;

[0008] The pressing piece is provided with a connecting assembly for clamping and fixing the fixed shaft and the pressing piece.

[0009] Preferably, a positioning hole is provided on the bottom end of the supporting wheel body, and a positioning rod corresponding to the positioning hole is fixedly connected to the positioning plate.

[0010] Preferably, the pressing member is a hollow structure with an open lower end, and the top end of the pressing member is a semicircular structure.

[0011] Preferably, the limiting plate is a rectangular plate structure, and the limiting hole is composed of a rectangular hole and a circular hole.

[0012] Preferably, the connecting assembly includes a fixing hole opened on the fixed shaft, the pressing member is slidably sleeved with a fixing rod slidably connected to the fixing hole, the outer end of the fixing rod is fixedly connected to a driving plate, and a spring is welded between the driving plate and the outer wall of the pressing member.

[0013] Preferably, the holding piece is provided with a movable hole for slidingly fitting the fixing rod, and the spring is horizontally and movably fitted on the fixing rod.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model is provided with a limit plate and a limit hole, and utilizes the connection between the fixed shaft and the limit plate, so that after the fixed shaft passes through the limit hole, the fixed shaft is rotated, so that after the limit plate deviates from the initial state, it will not fall off immediately when the wheel axle and the supporting wheel body are disassembled and assembled, which helps to improve the safety when the wheel axle and the supporting wheel body are disassembled and assembled.

[0016] 2. In the utility model, through the setting of the connecting component, the fixed rod and the driving plate can perform horizontal telescopic movement under the telescopic action of the spring, and the fixing rod is inserted into the movable hole and the fixed hole to realize the connection operation between the wheel axle and the fixed shaft. Compared with the threaded connection in the prior art, the connection is performed by snapping in the present technical solution, which helps to improve the convenience of the staff in disassembling and assembling the wheel axle and the supporting wheel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a safety type excavator supporting wheel proposed by the utility model;

[0018] Figure 2 This is a side view of a safety type excavator supporting wheel proposed by the utility model;

[0019] Figure 3 This is a cross-sectional view of a safety type excavator supporting wheel proposed by the utility model;

[0020] Figure 4 The utility model discloses an exploded view of a safety excavator supporting wheel.

[0021] In the figure: 1. supporting wheel body; 2. wheel axle; 3. positioning plate; 4. fixed shaft; 5. holding piece; 6. fixing hole; 7. fixing rod; 8. driving plate; 9. spring; 10. limit plate; 11. limit hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 4 A safety type excavator supporting roller comprises a supporting roller body 1, a wheel axle 2 is matchedly arranged on the supporting roller body 1, a positioning plate 3 is fixedly connected to the lower end of the wheel axle 2, a positioning hole is opened on the bottom end of the supporting roller body 1, a positioning rod corresponding to the positioning hole is fixedly connected to the positioning plate 3, and the positioning hole and the positioning rod are arranged so that the wheel axle 2 and the supporting roller body 1 can be quickly positioned;

[0024] A fixed shaft 4 is rotatably mounted on the wheel axle 2 through a damping bearing, and a holding piece 5 corresponding to the fixed shaft 4 is provided on the track wheel body 1. The holding piece 5 is a hollow structure with an opening at the lower end, and the top of the holding piece 5 is a semicircular structure.

[0025] The limiting plate 10 is fixedly mounted on the fixed shaft 4, and a limiting hole 11 for slidingly mounting the limiting plate 10 and the fixed shaft 4 is opened on the supporting wheel body 1. The limiting plate 10 is a rectangular plate structure, and the limiting hole 11 is composed of a rectangular hole and a circular hole. It should be noted that: before the pressing member 5 is needed to fix and limit the fixed shaft 4, the fixed shaft 4 and the limiting plate 10 pass through the limiting hole 11, and the limiting plate 10 and the top of the supporting wheel body 1 are movably abutted against each other, and the fixed shaft 4 is rotated so that the limiting plate 10 and the rectangular hole in the limiting hole 11 are in a cross-shaped structure, so as to prevent the staff from directly falling when disassembling and assembling the wheel shaft 2 and the supporting wheel body 1, so that the staff can first disassemble the pressing member 5, and then disassemble the wheel shaft 2, which is helpful to ensure the safety of the staff when disassembling and assembling the wheel shaft 2 and the pressing member 5;

[0026] The holding member 5 is provided with a connecting assembly for clamping and fixing the fixed shaft 4 and the holding member 5. The fixed shaft 4 is clamped and fixed by the connecting assembly, so that the wheel axle 2 connected to the fixed shaft 4 is fixed to the holding member 5, and the limiting plate 10 and the limiting hole 11 are cooperated to realize the stable connection between the wheel axle 2 and the holding member 5;

[0027] In a further embodiment, the connecting assembly includes a fixing hole 6 opened on the fixing shaft 4, a fixing rod 7 slidably sleeved on the pressing member 5 and slidably connected to the fixing hole 6, and a movable hole for slidingly sleeved the fixing rod 7 is opened on the pressing member 5, and the fixing rod 7 is inserted into the fixing hole 6 and the movable hole to achieve the fixing operation of the fixing shaft 4;

[0028] The outer end of the fixing rod 7 is fixedly connected with a driving plate 8, and a spring 9 is welded between the driving plate 8 and the outer wall of the holding member 5. The spring 9 is horizontally movably sleeved on the fixing rod 7. Through the elastic force of the spring 9, the driving plate 8 can be reset when not pulled.

[0029] The functional principle of the utility model can be explained through the following operation modes:

[0030] Insert the wheel axle 2 into the supporting wheel body 1, so that the positioning rod enters the positioning hole, the fixed shaft 4 passes through the limiting hole 11, rotate the fixed shaft 4, the fixed shaft 4 drives the limiting plate 10 to rotate 90°, pull the driving plate 8, the driving plate 8 drives the fixing rod 7 to move outward, stretch the spring 9, place the pressing piece 5 at the top position of the supporting wheel body 1, so that the pressing piece 5 is sleeved on the fixing shaft 4, at this time the fixing hole 6 and the movable hole are coaxially arranged, loosen the driving plate 8, under the elastic force of the spring 9, the spring 9 drives the driving plate 8 to reset, the driving plate 8 drives the fixing rod 7 to move inward, so that the fixing rod 7 is inserted into the movable hole and the fixed hole 6, so as to realize the installation operation of the wheel axle 2.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety excavator track roller, comprising a track roller body (1), characterized in that: The supporting wheel body (1) is matched with a wheel axle (2), the lower end of the wheel axle (2) is fixedly connected with a positioning plate (3), a fixed shaft (4) is rotatably mounted on the wheel axle (2) via a damping bearing, a holding piece (5) corresponding to the fixed shaft (4) is arranged on the supporting wheel body (1), a limiting plate (10) is fixedly mounted on the fixed shaft (4), and a limiting hole (11) for slidingly mounting the limiting plate (10) and the fixed shaft (4) is opened on the supporting wheel body (1); The pressing member (5) is provided with a connecting assembly for clamping and fixing the fixed shaft (4) and the pressing member (5).

2. A safety excavator track wheel according to claim 1, characterized in that: A positioning hole is provided on the bottom end of the track wheel body (1), and a positioning rod corresponding to the positioning hole is fixedly connected to the positioning plate (3).

3. The safety excavator track wheel according to claim 1, characterized in that: The pressing member (5) is a hollow structure with an open lower end, and the top end of the pressing member (5) is a semicircular structure.

4. The safety excavator track wheel according to claim 1, characterized in that: The limiting plate (10) is a rectangular plate structure, and the limiting hole (11) is composed of a rectangular hole and a circular hole.

5. The safety excavator supporting wheel according to claim 1, characterized in that: The connecting assembly comprises a fixing hole (6) formed on the fixing shaft (4); a fixing rod (7) slidably mounted on the pressing member (5) and connected to the fixing hole (6); a driving plate (8) is fixedly connected to the outer end of the fixing rod (7); and a spring (9) is welded between the driving plate (8) and the outer wall of the pressing member (5).

6. The safety excavator track wheel according to claim 5, characterized in that: The holding piece (5) is provided with a movable hole for slidingly fitting the fixing rod (7), and the spring (9) is horizontally and movably fitted on the fixing rod (7).

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