Tamping pick arm of tamping device

Abstract

The utility model discloses a tamping device's tamping pickaxe arm, including tamping pickaxe arm main part, the tamping pickaxe arm main part is rotatingly connected with the left side and the right side of tamping device, the tamping pickaxe arm main part is equipped with the pin shaft, the pin shaft passes through the tamping device, one end of the pin shaft is fixedly connected with the spacing plate, and the spacing plate is fixedly connected with the tamping device. The other end of the pin shaft is sleeved with a nut piece in a threaded mode. The surface of the pin shaft is sleeved with a pin shaft sleeve, and the front side and the rear side of the surface of the pin shaft sleeve are movably sleeved with nylon wear-resisting sleeves. The tamping pick arm has the advantage of wear resistance, and the problems that in the using process of the tamping pick arm of an existing tamping device, the wear resistance of a rotating structure between the tamping pick arm and the tamping device is poor, the rotating structure with the poor wear resistance is prone to being rapidly abraded in frequent use, and the service life of equipment is shortened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of track maintenance, and particularly relates to a pick arm of a tamping device. Background Technique

[0002] In railway maintenance, tamping is an important task. By compacting the ballast (crushed stones) under the track, it ensures the stability and safety of the track. Traditional tamping work was usually done manually, but now mechanical tamping devices are increasingly used to improve efficiency and quality. The tamping device in track maintenance is a mechanical device specifically used for railway track maintenance, and its main function is to compact the ballast under the track through vibration and pressure to ensure the stability and safety of the track.

[0003] The pick arm of the tamping device is one of the key components of the tamping machine. Its main function is to compact the ballast under the track under the action of vibration and pressure to ensure the stability and safety of the track. The vibration system of the tamping device generates strong vibrations through the main shaft and the eccentric sleeve. These vibrations are transmitted to the picks through the pick arms. By rotating the pick arms, the tamping device can compact the ballast at different angles to ensure that the ballast is evenly compacted in all directions, which helps to improve the density and stability of the roadbed.

[0004] During the use of the existing pick arms of the tamping device, the rotating structure between the pick arm and the tamping device has poor wear resistance. The rotating structure with poor wear resistance is prone to rapid wear during frequent use, resulting in a shortened service life of the equipment. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pick arm of a tamping device, which has the advantage of wear resistance, and solves the problem that during the use of the existing pick arm of the tamping device, the rotating structure between the pick arm and the tamping device has poor wear resistance, and the rotating structure with poor wear resistance is prone to rapid wear during frequent use, resulting in a shortened service life of the equipment.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a pick arm of a tamping device, including a pick arm main body, the pick arm main body is rotatably connected to the left and right sides of the tamping device,

[0007] A pin shaft is installed on the pick arm main body, the pin shaft penetrates through the tamping device, one end of the pin shaft is fixedly connected with a limiting plate, and a nut member is threadedly sleeved on the other end of the pin shaft;

[0008] A pin shaft sleeve is sleeved on the surface of the pin shaft, nylon wear-resistant sleeves are movably sleeved on the front and rear sides of the surface of the pin shaft sleeve, a spacer sleeve is sleeved on the surface of the nylon wear-resistant sleeve, the spacer sleeve is fixedly connected with the inner wall of the pick arm main body, and the tamping device is sleeved on the surface of the nylon wear-resistant sleeve.

[0009] Preferably, for the pick arm of a tamping device of the present utility model, the limiting plate is installed on the front side of the pick arm body, and the nut member is installed on the rear side of the pick arm body.

[0010] Preferably, for the pick arm of a tamping device of the present utility model, a sealing ring is sleeved on the surface of the nylon wear-resistant sleeve, and the sealing ring is located in the inner cavity of the spacer sleeve to seal the lubricating oil.

[0011] Preferably, for the pick arm of a tamping device of the present utility model, mounting holes for cooperating with the pin shaft are provided on the pick arm body and the tamping device, and the pin shaft is in interference fit with the mounting hole on the pick arm body.

[0012] Preferably, for the pick arm of a tamping device of the present utility model, a connecting member is fixedly connected to the bottom of the tamping device, and tamping picks are fixedly connected to both the front and rear sides of the bottom of the connecting member.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. During the rotation of the tamping device of the present utility model, the pin shaft and the pin bushing are driven to rotate synchronously. The pin bushing slides and rubs inside the nylon wear-resistant sleeve. Lubricating oil is provided on the contact surface between the pin bushing and the nylon wear-resistant sleeve to reduce wear. The sealing ring seals the lubricating oil to prevent its leakage, and at the same time prevents external dust from entering the surface of the nylon wear-resistant sleeve. The spacer sleeve positions and protects the sealing ring and the nylon wear-resistant sleeve, improving the safety of the rotating structure. Through this design, the wear resistance of the rotating structure can be improved, and the service life of the pick arm can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structure diagram of the present utility model Figure 1 ;

[0016] Figure 2 is a schematic structure diagram of the present utility model Figure 2 ;

[0017] Figure 3 is the sectional view taken along B-B of the present utility model Figure 2 ;

[0018] Figure 4 is a schematic structural diagram of the nylon wear-resistant sleeve of the present utility model.

[0019] In the figure: 1. Pick arm body; 2. Tamping device; 3. Limiting plate; 4. Connecting member; 5. Tamping pick; 6. Pin bushing; 7. Nut member; 8. Pin shaft; 9. Spacer sleeve; 10. Sealing ring; 11. Nylon wear-resistant sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Please refer to Figures 1-4 , a pick arm of a tamping device, which includes a pick arm main body 1. The pick arm main body 1 is rotatably connected to the left and right sides of the tamping device 2.

[0021] Furthermore, a connecting piece 4 is fixedly connected to the bottom of the tamping device 2, and tamping picks 5 are fixedly connected to the front and rear sides of the bottom of the connecting piece 4.

[0022] During the operation of the tamping device 2, the pick arm main body 1 is driven to vibrate. The pick arm main body 1 drives the tamping picks 5 to vibrate through the connecting piece 4. The tamping picks 5 are inserted into the ballast to compact the ballast.

[0023] Furthermore, a pin shaft 8 is installed on the pick arm main body 1. The pin shaft 8 penetrates through the tamping device 2. One end of the pin shaft 8 is fixedly connected with a limit plate 3, and a nut member 7 is threadedly sleeved on the other end of the pin shaft 8.

[0024] Furthermore, the limit plate 3 is installed on the front side of the pick arm main body 1, and the nut member 7 is installed on the rear side of the pick arm main body 1.

[0025] The limit plate 3 limits the front end of the pin shaft 8, and the nut member 7 fixes the rear end of the pin shaft 8 to prevent it from falling off.

[0026] Furthermore, a pin shaft sleeve 6 is sleeved on the surface of the pin shaft 8. Nylon wear-resistant sleeves 11 are movably sleeved on the front and rear sides of the surface of the pin shaft sleeve 6. A spacer sleeve 9 is sleeved on the surface of the nylon wear-resistant sleeve 11. The spacer sleeve 9 is fixedly connected to the inner wall of the pick arm main body 1. The tamping device 2 is sleeved on the surface of the nylon wear-resistant sleeve 11.

[0027] Furthermore, a sealing ring 10 is sleeved on the surface of the nylon wear-resistant sleeve 11. The sealing ring 10 is located in the inner cavity of the spacer sleeve 9 to seal the lubricating oil.

[0028] Furthermore, mounting holes for cooperating with the pin shaft 8 are formed on the pick arm main body 1 and the tamping device 2. The pin shaft 8 is in interference fit with the mounting holes on the pick arm main body 1.

[0029] During the rotation of the tamping device 2, the pin shaft 8 and the pin shaft sleeve 6 are driven to rotate synchronously. The pin shaft sleeve 6 slides and rubs inside the nylon wear-resistant sleeve 11. Lubricating oil is provided on the contact surface between the pin shaft sleeve 6 and the nylon wear-resistant sleeve 11 to reduce wear. The sealing ring 10 seals the lubricating oil to prevent it from leaking, and at the same time prevents external dust from entering the surface of the nylon wear-resistant sleeve 11. The spacer sleeve 9 positions and protects the sealing ring 10 and the nylon wear-resistant sleeve 11, improving the safety of the rotating structure. Through this design, the wear resistance of the rotating structure can be improved, and the service life of the pick arm can be extended.

[0030] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. The pick arm of a tamping device, comprising a pick arm main body (1), the pick arm main body (1) is rotatably connected to the left and right sides of the tamping device (2), and is characterized in that: A pin shaft (8) is installed on the pick arm main body (1), the pin shaft (8) penetrates through the tamping device (2), one end of the pin shaft (8) is fixedly connected with a limit plate (3), and a nut member (7) is threadedly sleeved on the other end of the pin shaft (8); A pin shaft sleeve (6) is sleeved on the surface of the pin shaft (8), nylon wear-resistant sleeves (11) are movably sleeved on the front and rear sides of the surface of the pin shaft sleeve (6), a spacer sleeve (9) is sleeved on the surface of the nylon wear-resistant sleeve (11), the spacer sleeve (9) is fixedly connected to the inner wall of the pick arm main body (1), and the tamping device (2) is sleeved on the surface of the nylon wear-resistant sleeve (11).

2. The pick arm of a tamping device according to claim 1, characterized in that: The limit plate (3) is installed on the front side of the pick arm main body (1), and the nut member (7) is installed on the rear side of the pick arm main body (1).

3. The pick arm of a tamping device according to claim 1, characterized in that: A sealing ring (10) is sleeved on the surface of the nylon wear-resistant sleeve (11), and the sealing ring (10) is located in the inner cavity of the spacer sleeve (9) to seal the lubricating oil.

4. The pick arm of a tamping device according to claim 1, characterized in that: Installation holes for cooperating with the pin shaft (8) are formed in the pick arm main body (1) and the tamping device (2), and the pin shaft (8) is in interference fit with the installation holes on the pick arm main body (1).

5. The pick arm of a tamping device according to claim 1, characterized in that: A connecting member (4) is fixedly connected to the bottom of the tamping device (2), and tamping picks (5) are fixedly connected to the front and rear sides of the bottom of the connecting member (4).

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