Tension-pressure-resistant long-service-life ball pin assembly for heavy truck swing arm

Abstract

The utility model discloses a tension-compression-resistant long-service-life ball pin assembly for a heavy truck swing arm, and relates to the technical field of ball pin assemblies. The ball pin comprises a ball pin seat, a connecting plate is mounted at the top of the ball pin seat, a ball pin body is arranged in the ball pin seat, a dust cover is mounted at the top of the connecting plate, lubricating oil channels are symmetrically and obliquely formed in the ball pin seat, and connecting assemblies are symmetrically mounted on one side of the ball pin seat. According to the split type ball pin assembly, the ball pin base, the connecting plate, the ball pin body and the connecting assembly are arranged, the ball pin base and the connecting plate are connected and fixed through the connecting assembly, so that the ball pin base is in split type connection, and at the moment, the ball pin body is taken out and inserted into the ball pin base to complete assembly connection; the connection between the ball pin seat and the connecting plate can be quickly released by operating the connecting assembly, and then the ball pin body is taken out for replacement, so that the maintenance cost and potential safety hazards are greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of ball pin assemblies, and in particular to a tensile and compressive resistant and long-life ball pin assembly for a heavy truck swing arm. Background Art

[0002] The ball pin assembly for heavy truck swing arm is a key component that connects the heavy truck steering knuckle and suspension swing arm. It mainly bears the axle load and controls the steering to ensure the stable driving of the vehicle. It is made of high-quality materials, has excellent load-bearing capacity and wear resistance, and is an important guarantee for the safe and reliable operation of heavy trucks.

[0003] An automobile ball pin assembly mentioned in an existing Chinese public patent (authorization announcement number: CN214648547U) belongs to the field of automobile accessories, including a ball seat, an elastic ring is fixedly installed on the surface of the ball seat, a pressure-resistant ring is fixedly installed on the surface of the elastic ring, a friction ring is fixedly installed on the surface of the pressure-resistant ring, a ball sleeve is clamped on the inner wall of the ball seat, a first thread is provided on the inner wall of the ball seat, a ball cover is fixedly installed on the inner wall of the ball seat through the first thread, a second thread is provided on the surface of the ball seat, and a connecting ring is fixedly installed on the surface of the ball seat through the second thread. It can improve the press-fitting and fastening effect between the ball seat and the swing arm hole and avoid axial movement of the ball seat through the arrangement of the elastic ring, the pressure-resistant ring and the friction ring, improve the wear-resistant effect of the inner wall of the ball seat through the action of the ball sleeve and the wear-resistant sleeve, and under the action of the ball cover, the installation stability of the ball sleeve can be guaranteed, and the ball pin is limited. Through the arrangement of the dust cover, impurities can be prevented from falling into the inner wall of the ball seat, affecting the use effect.

[0004] In the above patent, the wear resistance of the inner wall of the ball seat is improved through the role of the ball sleeve and the wear-resistant sleeve, and the stable installation of the ball sleeve can be guaranteed under the role of the ball cover. However, in actual use, when the ball pin is tried to be used, its compressive strength and service life will be greatly reduced due to material fatigue and wear. At this time, the ball pin needs to be replaced, and the traditional ball pin seat is generally an integral part. During disassembly and maintenance, if there are no professional tools nearby, the ball pin cannot be separated from the ball pin seat quickly and effectively, which greatly increases the maintenance cost and safety hazards. For this reason, the present application provides a tensile and compressive high-life ball pin assembly for a heavy-duty truck swing arm. Utility Model Content

[0005] The purpose of the present application is to solve the problem that the traditional ball pin seat is generally an integral part. When disassembling and repairing, if there are no professional tools nearby, the ball pin and the ball pin seat cannot be separated quickly and effectively, which greatly increases the maintenance cost and safety hazards. The present application provides a tensile and compressive high-life ball pin assembly for the swing arm of a heavy truck.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A tensile and compressive resistant and long-life ball pin assembly for a heavy truck swing arm comprises a ball pin seat, a connecting plate is installed on the top of the ball pin seat, a ball pin body is arranged inside the ball pin seat, a dust cover is installed on the top of the connecting plate, lubricating oil channels are symmetrically and obliquely arranged inside the ball pin seat, and a connecting component is symmetrically installed on one side of the ball pin seat.

[0008] By adopting the above technical scheme, the ball pin seat and the connecting plate are connected and fixed by the connecting component, so that the ball pin seat becomes a split connection. At this time, the ball pin body is taken out and inserted into the interior of the ball pin seat to complete the connection of the assembly, and then the dust cover is taken out and fits with the top of the connecting plate. Through the setting of the dust cover, dust and impurities can be effectively prevented from entering the interior of the ball pin seat, which greatly extends the service life of the ball pin body. After the ball pin seat and the ball pin body are connected, lubricating oil can be injected into the lubricating oil channel. The lubricating oil channel is inclined to allow the lubricating oil to enter the connection between the ball pin seat and the ball pin body, thereby reducing the friction and wear between the ball pin seat and the ball pin body. Secondly, when the ball pin body is worn and needs to be replaced in time, the connection between the ball pin seat and the connecting plate can be quickly released by operating the connecting component, and then the ball pin body can be taken out for replacement, thereby greatly reducing maintenance costs and safety hazards.

[0009] Furthermore, the four corners of the top of the dust cover are all threadedly connected with fixing bolts, the dust cover is made of wear-resistant rubber, and the outer wall surface of the dust cover is provided with a waterproof layer, and the waterproof layer is made of polyurethane.

[0010] By adopting the above technical solution, the dust cover is fixed to the connecting plate by multiple fixing bolts. The dust cover made of wear-resistant rubber can effectively prevent dust and impurities from entering the interior of the ball pin seat, greatly extending the service life of the ball pin seat and the ball pin body. The polyurethane waterproof layer arranged on the outer wall of the dust cover can prevent rainwater and muddy water from entering the interior of the ball pin seat.

[0011] Furthermore, a plurality of protrusions are evenly arranged inside the dust cover.

[0012] By adopting the above technical solution, the friction between the dust cover and the ball pin seat and the ball pin body can be increased by means of the multiple protrusions arranged inside the dust cover, thereby preventing the dust cover from falling off.

[0013] Furthermore, a filter screen is fixedly connected inside the lubricating oil channel, and a sealing block is threadedly connected to one end of the lubricating oil channel.

[0014] By adopting the above technical solution, the lubricating oil channel is arranged obliquely so that the lubricating oil can pass through the filter and enter the connection between the ball pin seat and the ball pin body, thereby reducing the friction and wear between the ball pin seat and the ball pin body. The sealing block is threadedly connected to one end of the lubricating oil channel to seal the lubricating oil channel and prevent leakage of the lubricating oil.

[0015] Furthermore, a plurality of micro grooves are arranged on the contact surface between the ball pin seat and the ball pin body.

[0016] By adopting the above technical solution, part of the injected lubricating oil will flow into the micro grooves for storage, thereby further reducing friction and wear.

[0017] Furthermore, the connecting assembly includes a fixed plate symmetrically fixedly connected to one side of the connecting plate, the bottom of the fixed plate is fixedly connected to an extrusion block, the bottom of the extrusion block is rotatably connected to a connecting column, the bottom of the connecting column is fixedly connected to a limiting block, one side of the ball pin seat is symmetrically fixedly connected to a fixed block, and the bottom of the fixed block is provided with a limiting through hole consistent with the size of the limiting block.

[0018] By adopting the above technical solution, when the ball pin body is subsequently worn and needs to be replaced in time, the limit block and the connecting column can be operated to rotate so that the limit block and the limit through hole are parallel to each other. At this time, the extrusion block can be pulled away from the fixed block to quickly release the connection between the ball pin seat and the connecting plate, and then the ball pin body can be taken out for replacement, thereby greatly reducing maintenance costs and safety hazards.

[0019] Furthermore, a spring is fixedly connected inside the fixing block, and one end of the spring is fixedly connected to the inner bottom surface of the fixing block.

[0020] By adopting the above technical solution, the spring will always resist the extrusion block through the contraction and rebound of the spring, so that the limit block is always in a vertically misaligned state with the limit through hole.

[0021] Furthermore, a nano-ceramic wear-resistant layer is provided on the surface of the ball pin body.

[0022] By adopting the above technical solution, the wear resistance and corrosion resistance of the ball pin body can be further improved by providing a nano-ceramic wear-resistant layer on the surface of the ball pin body.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. The present application is provided with a ball pin seat, a connecting plate, a ball pin body and a connecting assembly. The ball pin seat and the connecting plate are connected and fixed by the connecting assembly, so that the ball pin seat becomes a split connection. At this time, the ball pin body is taken out and inserted into the interior of the ball pin seat to complete the connection of the assembly. When the ball pin body is subsequently worn and needs to be replaced in time, the connection between the ball pin seat and the connecting plate can be quickly released by operating the connecting assembly, and then the ball pin body can be taken out for replacement, thereby greatly reducing maintenance costs and safety hazards.

[0025] 2. The present application is provided with a dust cover and a lubricating oil channel. The dust cover can effectively prevent dust and impurities from entering the interior of the ball pin seat, greatly extending the service life of the ball pin seat and the ball pin body. The polyurethane waterproof layer arranged on the outer wall of the dust cover can prevent rainwater and muddy water from entering the interior of the ball pin seat. The inclined lubricating oil channel can allow the lubricating oil to pass through the filter and enter the connection between the ball pin seat and the ball pin body, thereby reducing the friction and wear between the ball pin seat and the ball pin body. A part of the injected lubricating oil will flow into the micro-groove for storage, thereby further reducing the friction and wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0027] Figure 2 It is a schematic diagram of the three-dimensional structure of the dust cover in this application.

[0028] Figure 3 It is a schematic diagram of the internal structure of the ball pin seat in this application.

[0029] Figure 4 It is a three-dimensional structural schematic diagram of the connection components in this application.

[0030] Description of reference numerals:

[0031] 1. Ball pin seat; 2. Connecting plate; 3. Ball pin body; 4. Dust cover; 5. Lubricating oil channel; 6. Connecting assembly; 41. Fixing bolt; 42. Bump; 51. Filter; 52. Sealing block; 53. Micro groove; 61. Fixing plate; 62. Extrusion block; 63. Connecting column; 64. Limit block; 65. Fixing block; 66. Spring; 67. Limit through hole. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a tensile and compressive resistant and long-life ball pin assembly for a heavy truck swing arm.

[0034] Reference Figure 1A ball pin assembly with high tensile and compressive resistance and long service life for a heavy truck swing arm comprises a ball pin seat 1, a connecting plate 2 is installed on the top of the ball pin seat 1, a ball pin body 3 is arranged inside the ball pin seat 1, a dust cover 4 is installed on the top of the connecting plate 2, a lubricating oil channel 5 is symmetrically and obliquely arranged inside the ball pin seat 1, and a connecting component 6 is symmetrically installed on one side of the ball pin seat 1.

[0035] When in use, the connecting plate 2 is fitted on the top of the ball pin seat 1, and then the ball pin seat 1 and the connecting plate 2 are connected and fixed through the connecting component 6, so that the ball pin seat 1 becomes a split connection. At this time, the ball pin body 3 is taken out and inserted into the interior of the ball pin seat 1 to complete the connection of the assembly, and then the dust cover 4 is taken out and fitted with the top of the connecting plate 2. Through the setting of the dust cover 4, dust and impurities can be effectively prevented from entering the interior of the ball pin seat 1, which greatly extends the service life of the ball pin body 3. When the ball pin seat 1 and the ball pin body 3 are connected, lubricating oil can be injected into the lubricating oil channel 5. The lubricating oil channel 5 is inclined to allow the lubricating oil to enter the connection between the ball pin seat 1 and the ball pin body 3, thereby reducing the friction and wear between the ball pin seat 1 and the ball pin body 3. Secondly, when the ball pin body 3 is worn and needs to be replaced in time, the connection between the ball pin seat 1 and the connecting plate 2 can be quickly released by operating the connecting component 6, and then the ball pin body 3 is taken out for replacement, thereby greatly reducing maintenance costs and safety hazards.

[0036] Reference Figure 1 and Figure 2 The four corners of the top of the dust cover 4 are all threadedly connected with fixing bolts 41, the dust cover 4 is made of wear-resistant rubber, the outer wall surface of the dust cover 4 is provided with a waterproof layer, the waterproof layer is made of polyurethane, and a plurality of protrusions 42 are evenly arranged inside the dust cover 4.

[0037] When in use, take out the dust cover 4 and fit it with the top of the connecting plate 2, and then fix the dust cover 4 on the connecting plate 2 by means of multiple fixing bolts 41. The dust cover 4 made of wear-resistant rubber can effectively prevent dust and impurities from entering the interior of the ball pin seat 1, greatly extending the service life of the ball pin seat 1 and the ball pin body 3. The polyurethane waterproof layer arranged on the outer wall of the dust cover 4 can prevent rainwater and muddy water from entering the interior of the ball pin seat 1. At the same time, multiple bumps 42 arranged inside the dust cover 4 can increase the friction between the dust cover 4 and the ball pin seat 1 and the ball pin body 3, thereby preventing the dust cover 4 from falling off.

[0038] Reference Figure 1 and Figure 3 A filter screen 51 is fixedly connected to the inside of the lubricating oil channel 5, a sealing block 52 is threadedly connected to one end of the lubricating oil channel 5, and a plurality of micro grooves 53 are arranged on the contact surface between the ball pin seat 1 and the ball pin body 3.

[0039] During use, after the ball pin seat 1 and the ball pin body 3 are connected, the lubricating oil can be injected into the lubricating oil channel 5. The inclined lubricating oil channel 5 can allow the lubricating oil to enter the connection between the ball pin seat 1 and the ball pin body 3 after being filtered by the filter screen 51, thereby reducing the friction and wear between the ball pin seat 1 and the ball pin body 3. After the lubricating oil is injected into the lubricating oil channel 5, the sealing block 52 can be threadedly connected to one end of the lubricating oil channel 5 to seal the lubricating oil channel 5 to prevent leakage of the lubricating oil, and a part of the injected lubricating oil will flow into the micro groove 53 for storage, thereby further reducing friction and wear.

[0040] Reference Figure 1 and Figure 4 The connecting assembly 6 includes a fixing plate 61 symmetrically fixedly connected to one side of the connecting plate 2, the bottom of the fixing plate 61 is fixedly connected to an extrusion block 62, the bottom of the extrusion block 62 is rotatably connected to a connecting column 63, the bottom of the connecting column 63 is fixedly connected to a limiting block 64, and one side of the ball pin seat 1 is symmetrically fixedly connected to a fixing block 65, the bottom of the fixing block 65 is provided with a limiting through hole 67 of the same size as the limiting block 64, the inside of the fixing block 65 is fixedly connected to a spring 66, and one end of the spring 66 is fixedly connected to the bottom surface of the fixing block 65.

[0041] When in use, firstly, the connecting plate 2 is fitted on the top of the ball pin seat 1, at which time the connecting column 63 and the limiting block 64 will be inserted into the interior of the fixing block 65. Since the size of the limiting through hole 67 is consistent with that of the limiting block 64, the limiting block 64 will pass through the limiting through hole 67 to reach the outside of the fixing block 65. At this time, the connecting column 63 and the limiting block 64 can be rotated so that the angle of the limiting block 64 and the limiting through hole 67 are in a state of vertical misalignment, thereby fixing the ball pin seat 1 and the connecting plate 2 through the cooperation of the limiting block 64 and the limiting through hole 67. Secondly, when the connecting column 63 and the limiting block 64 are inserted into the interior of the fixing block 65, the extrusion block 62 will also enter the fixing block 65 and the extrusion spring 66 will contract. Through the contraction and rebound of the spring 66, it will always resist the extrusion block 62, thereby making the limiting block 64 always in a state of vertical misalignment with the limiting through hole 67.

[0042] When the ball pin body 3 is worn and needs to be replaced in time, the limit block 64 and the connecting column 63 can be rotated by operating the limit block 64 and the limit through hole 67 to be parallel to each other. At this time, the spring 66 will rebound to push the extrusion block 62 away from the fixed block 65, so as to quickly release the connection between the ball pin seat 1 and the connecting plate 2, and then the ball pin body 3 can be taken out for replacement, thereby greatly reducing maintenance costs and safety hazards.

[0043] Reference Figure 1 The surface of the ball pin body 3 is provided with a nano-ceramic wear-resistant layer.

[0044] When in use, the nano-ceramic wear-resistant layer provided on the surface of the ball pin body 3 can further improve the wear resistance and corrosion resistance of the ball pin body 3 .

[0045] The implementation principle of the tensile and compressive resistant and high-life ball pin assembly for the swing arm of a heavy truck in this embodiment is as follows: when in use, the connecting plate 2 is attached to the top of the ball pin seat 1, at which time the connecting column 63 and the limit block 64 will be inserted into the interior of the fixed block 65. Since the size of the limit through hole 67 is consistent with the limit block 64, the limit block 64 will pass through the limit through hole 67 to reach the outside of the fixed block 65. At this time, the connecting column 63 and the limit block 64 can be rotated so that the angle of the limit block 64 is vertically misaligned with the limit through hole 67, so that the ball pin seat 1 and the connecting plate 2 are fixedly connected through the cooperation of the limit block 64 and the limit through hole 67. Secondly, when the connecting column 63 and the limit block 64 are inserted into the interior of the fixed block 65, the extrusion block 62 will also enter the fixed block 65 to squeeze the spring 66 to contract. Through the contraction and rebound of the spring 66, the extrusion block 62 will always be pressed. The ball pin seat 1 and the connecting plate 2 are connected and fixed to each other so that the ball pin seat 1 becomes a split connection. At this time, the ball pin body 3 is taken out and inserted into the interior of the ball pin seat 1 to complete the connection of the assembly. Then, the dust cover 4 is taken out and fits with the top of the connecting plate 2. Then, the dust cover 4 is fixed to the connecting plate 2 by a plurality of fixing bolts 41. The dust cover 4 made of wear-resistant rubber can effectively prevent dust and impurities from entering the interior of the ball pin seat 1, greatly extending the service life of the ball pin seat 1 and the ball pin body 3. The polyurethane waterproof layer arranged on the outer wall of the dust cover 4 can prevent rainwater and muddy water from entering the interior of the ball pin seat 1. At the same time, the friction between the dust cover 4 and the ball pin seat 1 and the ball pin body 3 can be increased by a plurality of protrusions 42 arranged inside the dust cover 4, so as to prevent the dust cover 4 from falling off.

[0046] After the ball pin seat 1 and the ball pin body 3 are connected, the lubricating oil can be injected into the lubricating oil passage 5. The inclined lubricating oil passage 5 allows the lubricating oil to enter the connection between the ball pin seat 1 and the ball pin body 3 after being filtered by the filter screen 51, thereby reducing the friction and wear between the ball pin seat 1 and the ball pin body 3. After the lubricating oil is injected into the lubricating oil passage 5, the sealing block 52 can be threadedly connected to one end of the lubricating oil passage 5 to seal the lubricating oil passage 5 to prevent the lubricating oil from leaking. A part of the injected lubricating oil will flow into the micro groove 53 for storage, thereby further reducing the friction and wear.

[0047] Secondly, when the subsequent ball pin body 3 is worn and needs to be replaced in time, the limit block 64 and the connecting column 63 can be rotated by operating the limit block 64 and the limit through hole 67 so that the limit block 64 and the limit through hole 67 are parallel to each other. At this time, the rebound of the spring 66 will push the extrusion block 62 away from the fixed block 65, so as to quickly release the connection between the ball pin seat 1 and the connecting plate 2, and then the ball pin body 3 can be taken out for replacement, thereby greatly reducing maintenance costs and safety hazards. The nano-ceramic wear-resistant layer set on the surface of the ball pin body 3 can further improve the wear resistance and corrosion resistance of the ball pin body 3.

Claims

1. A ball pin assembly with high tensile and compressive resistance and long service life for a heavy truck swing arm, comprising a ball pin seat (1), characterized in that: A connecting plate (2) is installed on the top of the ball pin seat (1), a ball pin body (3) is arranged inside the ball pin seat (1), a dust cover (4) is installed on the top of the connecting plate (2), lubricating oil channels (5) are symmetrically and obliquely arranged inside the ball pin seat (1), and a connecting assembly (6) is symmetrically installed on one side of the ball pin seat (1).

2. The tensile and compressive long-life ball pin assembly for a heavy truck swing arm according to claim 1, characterized in that: The four corners of the top of the dust cover (4) are all threadedly connected with fixing bolts (41); the dust cover (4) is made of wear-resistant rubber; the outer wall surface of the dust cover (4) is provided with a waterproof layer; the waterproof layer is made of polyurethane.

3. The tensile and compressive long-life ball pin assembly for a heavy truck swing arm according to claim 1, characterized in that: A plurality of protrusions (42) are evenly arranged inside the dust cover (4).

4. The tensile and compressive long-life ball pin assembly for a heavy truck swing arm according to claim 1, characterized in that: The interior of the lubricating oil channel (5) is fixedly connected to a filter screen (51), and one end of the lubricating oil channel (5) is threadedly connected to a sealing block (52).

5. The tensile and compressive long-life ball pin assembly for a heavy truck swing arm according to claim 1, characterized in that: A plurality of micro grooves (53) are provided on the contact surface between the ball pin seat (1) and the ball pin body (3).

6. The tensile and compressive long-life ball pin assembly for a heavy truck swing arm according to claim 1, characterized in that: The connecting assembly (6) comprises a fixing plate (61) symmetrically fixedly connected to one side of the connecting plate (2); the bottom of the fixing plate (61) is fixedly connected to an extrusion block (62); the bottom of the extrusion block (62) is rotatably connected to a connecting column (63); the bottom of the connecting column (63) is fixedly connected to a limit block (64); one side of the ball pin seat (1) is symmetrically fixedly connected to a fixing block (65); the bottom of the fixing block (65) is provided with a limit through hole (67) of the same size as the limit block (64).

7. The tensile and compressive long-life ball pin assembly for a heavy truck swing arm according to claim 6, characterized in that: A spring (66) is fixedly connected inside the fixing block (65), and one end of the spring (66) is fixedly connected to the inner bottom surface of the fixing block (65).

8. The tensile and compressive long-life ball pin assembly for a heavy truck swing arm according to claim 1, characterized in that: The surface of the ball pin body (3) is provided with a nano-ceramic wear-resistant layer.

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