High-strength wear-resistant bushing for front swing arm of heavy truck

Abstract

The utility model discloses a high-strength wear-resistant bushing for a front swing arm of a heavy truck, and relates to the technical field of heavy truck manufacturing. The front swing arm comprises a front swing arm body, a mounting hole is formed in one end of the front swing arm body, a lining body is mounted in the mounting hole, the lining body comprises an outer ring mounted in the mounting hole, and a wear-resistant ring is mounted in the outer ring. The bushing is provided with the outer ring, the wear-resistant ring, the inner ring and the limiting piece, the outer ring and the inner ring are made of alloy steel, and the wear-resistant ring is made of the hard ceramic layer and the soft lubricating layer, so that the bushing body has high strength, high wear resistance and good self-lubricating performance, the service life of the bushing body is remarkably prolonged, and meanwhile, through the arranged limiting piece, the service life of the bushing body is prolonged. And the binding force among the outer ring, the wear-resistant ring and the inner ring can be greatly increased, the risk that the wear-resistant ring falls off or shifts in the using process is prevented, the performance stability of the lining body is further enhanced, and the driving safety and stability are improved.

Description

Technical Field

[0001] The present application relates to the technical field of heavy truck manufacturing, and in particular to a high-strength wear-resistant bushing for a front swing arm of a heavy truck. Background Art

[0002] The bushing for the front swing arm of a heavy truck is an indispensable part of the heavy truck suspension system. It is located between the swing arm and the frame. Its main function is to reduce the friction and wear between the swing arm and the frame, while ensuring the flexibility and stability of the swing arm during driving.

[0003] The existing front swing arm bushing is a key component connecting the front swing arm and the frame, and is subjected to complex and variable loads. The front swing arm bushings available on the market are mostly made of materials such as rubber or polyurethane, which have good shock absorption and corrosion resistance, and have the advantages of good elasticity and aging resistance.

[0004] However, in actual use, although the front swing arm bushing made of materials such as rubber or polyurethane has a certain cushioning and vibration reduction effect, after long-term high-intensity use, the bushing often suffers from severe wear and short life due to insufficient wear resistance and compression resistance of the material, which in turn affects the driving stability and safety of heavy trucks. For this reason, the present application provides a high-strength wear-resistant bushing for the front swing arm of a heavy truck. Utility Model Content

[0005] The purpose of the present application is to solve the problem of severe wear and short life of the bushing due to insufficient wear resistance and compression resistance of the material after long-term high-intensity use. The present application provides a high-strength wear-resistant bushing for the front 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 high-strength wear-resistant bushing for a front swing arm of a heavy truck comprises a front swing arm body, one end of the front swing arm body is provided with a mounting hole, a bushing body is installed inside the mounting hole, the bushing body comprises an outer ring installed inside the mounting hole, a wear-resistant ring is installed inside the outer ring, an inner ring is installed inside the wear-resistant ring, limiting parts are provided on the outer ring and the inner ring, and lubricating parts are provided on the outer ring and the inner ring.

[0008] By adopting the above technical scheme, the bushing body is first installed, and the wear-resistant ring and the inner ring are installed inside the outer ring in sequence. When the installation is completed, the bushing body can be sleeved in the mounting hole of the front swing arm body, and then the front swing arm body and the frame are connected and fixed by high-strength bolts. During the daily driving of heavy trucks, the cooperation of the outer ring, the inner ring and the wear-resistant ring can make the bushing body have high strength, high wear resistance and good self-lubricating performance, which significantly improves the service life of the bushing body. At the same time, the limiting parts can greatly increase the bonding force between the outer ring, the wear-resistant ring and the inner ring, and prevent the risk of the wear-resistant ring falling off or shifting during use, further enhance the performance stability of the bushing body, and improve the safety and stability of driving. The lubricating parts set on the outer ring and the inner ring can effectively reduce the friction and wear between the wear-resistant ring and the wear-resistant ring.

[0009] Furthermore, the wear-resistant ring is made of a multilayer ceramic composite material, and includes a hard ceramic layer fixedly connected to the inside of an outer ring, and a soft lubricating layer is fixedly connected to the inner wall of the hard ceramic layer.

[0010] By adopting the above technical solution, the wear-resistant ring is made of a hard ceramic layer and a soft lubricating layer, so that the bushing body can have high strength, high wear resistance and good self-lubricating performance, which significantly improves the service life of the bushing body.

[0011] Furthermore, the limiting member includes a plurality of protrusions 1 uniformly fixedly connected to the outer wall of the inner ring, the inner wall of the soft lubricating layer is uniformly provided with a plurality of grooves 1, and the shape and size of the protrusions 1 are consistent with the grooves 1.

[0012] By adopting the above technical solution, the inner ring is taken out and inserted into the soft lubricating layer. At this time, the multiple protrusions on one side of the inner ring will be stuck in the multiple grooves on one side of the soft lubricating layer, which can effectively increase the bonding force between the inner ring and the wear-resistant ring, and prevent the wear-resistant ring from falling off or shifting during use.

[0013] Furthermore, a plurality of protrusions 2 are evenly fixedly connected to the outer wall of the hard ceramic layer, a plurality of grooves 2 are evenly opened on the inner wall of the outer ring, and the shapes and sizes of the protrusions 2 are consistent with those of the grooves 2.

[0014] By adopting the above technical solution, the wear-resistant ring is inserted into the interior of the outer ring. At this time, the multiple protrusions 2 on one side of the hard ceramic layer will be inserted into the multiple grooves 2 on one side of the outer ring, which can effectively increase the bonding force between the wear-resistant ring and the outer ring and prevent the wear-resistant ring from falling off or shifting during use.

[0015] Furthermore, a plurality of heat dissipation holes are provided on the outer ring and the inner ring.

[0016] By adopting the above technical solution, the heat dissipation effect of the bushing body can be effectively improved by providing a plurality of heat dissipation holes on the outer ring and the inner ring.

[0017] Furthermore, the lubricating component includes an oil delivery channel opened on the top of the outer ring and the inner ring, two annular grooves are symmetrically opened on the outer walls of the outer ring and the inner ring, and a plurality of drainage grooves are evenly opened inside the oil delivery channel.

[0018] By adopting the above technical solution, the lubricating oil is poured into the oil delivery channel, and then the lubricating oil slowly flows into a plurality of drainage grooves. Guided by the drainage grooves, the lubricating oil will drip onto the heat dissipation holes and enter the annular groove for storage, thereby effectively reducing the friction and wear between the wear-resistant ring.

[0019] Furthermore, the outer ring and the inner ring are both made of alloy steel.

[0020] By adopting the above technical solution, the wear resistance and service life of the front swing arm bushing are significantly improved by making the outer ring and the inner ring of alloy steel.

[0021] Furthermore, the surfaces of the outer ring and the inner ring are both provided with a nano-ceramic wear-resistant layer.

[0022] By adopting the above technical solution, the wear resistance and corrosion resistance of the outer ring and the inner ring can be further improved through the nano-ceramic wear-resistant layer.

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

[0024] 1. The present application is provided with an outer ring, a wear-resistant ring, an inner ring and a limit piece. The outer ring and the inner ring are made of alloy steel and the wear-resistant ring is made of a hard ceramic layer and a soft lubricating layer, so that the bushing body has high strength, high wear resistance and good self-lubricating performance, which significantly improves the service life of the bushing body. At the same time, the limit piece is set to greatly increase the bonding force between the outer ring, the wear-resistant ring and the inner ring, and prevent the risk of the wear-resistant ring falling off or shifting during use, further enhance the performance stability of the bushing body, and improve the safety and stability of driving.

[0025] 2. The present application is provided with an oil delivery channel, an annular groove and a drainage groove. When in use, the lubricating oil is poured into the oil delivery channel, and then the lubricating oil slowly flows into a plurality of drainage grooves. Guided by the drainage grooves, the lubricating oil will drip onto the heat dissipation holes and enter the annular groove for storage, thereby effectively reducing the friction and wear between the wear-resistant ring. 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 an exploded view of the bushing body in this application.

[0028] Figure 3 It is a structural schematic diagram of the bushing body in this application.

[0029] Description of reference numerals:

[0030] 1. Front swing arm body; 2. Bushing body; 3. Outer ring; 4. Wear-resistant ring; 5. Inner ring; 6. Hard ceramic layer; 7. Soft lubricating layer; 8. Bump 1; 9. Groove 1; 10. Bump 2; 11. Groove 2; 12. Heat dissipation hole; 13. Oil delivery channel; 14. Annular groove; 15. Drainage groove. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The embodiment of the present application discloses a high-strength wear-resistant bushing for a front swing arm of a heavy truck.

[0033] Reference Figure 1 and Figure 2 A high-strength wear-resistant bushing for a front swing arm of a heavy truck comprises a front swing arm body 1, a mounting hole is provided at one end of the front swing arm body 1, a bushing body 2 is installed inside the mounting hole, the bushing body 2 comprises an outer ring 3 installed inside the mounting hole, a wear-resistant ring 4 is installed inside the outer ring 3, an inner ring 5 is installed inside the wear-resistant ring 4, limiting members are provided on the outer ring 3 and the inner ring 5, lubricating members are provided on the outer ring 3 and the inner ring 5, a plurality of heat dissipation holes 12 are provided on the outer ring 3 and the inner ring 5, both the outer ring 3 and the inner ring 5 are made of alloy steel, nano-ceramic wear-resistant layers are provided on the surfaces of the outer ring 3 and the inner ring 5, the wear-resistant ring 4 is made of a multilayer ceramic composite material, the wear-resistant ring 4 comprises a hard ceramic layer 6 fixedly connected to the inside of the outer ring 3, and a soft lubricating layer 7 is fixedly connected to the inner wall of the hard ceramic layer 6.

[0034] When in use, first install the bushing body 2, and install the wear-resistant ring 4 and the inner ring 5 inside the outer ring 3 in sequence. After the installation is completed, the bushing body 2 can be sleeved in the installation hole of the front swing arm body 1, and then the front swing arm body 1 and the frame are connected and fixed by high-strength bolts. In the daily driving process of heavy trucks, the outer ring 3 and the inner ring 5 made of alloy steel and the wear-resistant ring 4 made of the hard ceramic layer 6 and the soft lubricating layer 7 can make the bushing body 2 have high strength, high wear resistance and good self-lubricating performance, which significantly improves the bushing body 2. Service life. At the same time, during daily driving, the limit members can greatly increase the bonding force between the outer ring 3, the wear-resistant ring 4 and the inner ring 5 to prevent the wear-resistant ring 4 from falling off or shifting during use, further enhancing the performance stability of the bushing body 2 and improving the safety and stability of driving. Secondly, during use, the lubricating parts arranged on the outer ring 3 and the inner ring 5 can effectively reduce the friction and wear between the wear-resistant ring 4, and the multiple heat dissipation holes 12 arranged on the outer ring 3 and the inner ring 5 can effectively improve the heat dissipation effect of the bushing body 2.

[0035] Reference Figure 1 and Figure 2 The limiting member includes a plurality of protrusions 8 uniformly fixedly connected to the outer wall of the inner ring 5, a plurality of grooves 9 uniformly opened on the inner wall of the soft lubricating layer 7, and the shape and size of the protrusions 8 are consistent with the grooves 9, a plurality of protrusions 10 uniformly fixedly connected to the outer wall of the hard ceramic layer 6, and a plurality of grooves 11 uniformly opened on the inner wall of the outer ring 3, and the shape and size of the protrusions 10 are consistent with the grooves 11.

[0036] When in use, first install the bushing body 2 and insert the wear-resistant ring 4 into the outer ring 3. At this time, the multiple protrusions 10 on one side of the hard ceramic layer 6 will be inserted into the multiple grooves 11 on one side of the outer ring 3. Then take out the inner ring 5 and insert it into the soft lubricating layer 7. At this time, the multiple protrusions 8 on one side of the inner ring 5 will be inserted into the multiple grooves 9 on one side of the soft lubricating layer 7. The grooves 11 and protrusions 8 set on the surfaces of the outer ring 3 and the inner ring 5 can effectively increase the bonding force with the wear-resistant ring 4 to prevent the wear-resistant ring 4 from falling off or shifting during use.

[0037] Reference Figure 1 and Figure 3 The lubricating parts include an oil delivery channel 13 opened on the top of the outer ring 3 and the inner ring 5, two annular grooves 14 are symmetrically opened on the outer walls of the outer ring 3 and the inner ring 5, and a plurality of drainage grooves 15 are evenly opened inside the oil delivery channel 13.

[0038] When in use, the lubricating oil can be poured into the oil delivery channel 13, and then the lubricating oil will slowly flow into the multiple drainage grooves 15. Guided by the drainage grooves 15, the lubricating oil will drip onto the heat dissipation holes 12 and enter the annular groove 14 for storage, thereby effectively reducing the friction and wear between the wear-resistant ring 4.

[0039] The implementation principle of a high-strength wear-resistant bushing for a heavy-duty front swing arm of the present embodiment is as follows: when in use, the bushing body 2 is first installed, and the wear-resistant ring 4 is inserted into the interior of the outer ring 3. At this time, the multiple protrusions 10 on one side of the hard ceramic layer 6 will be inserted into the multiple grooves 11 on one side of the outer ring 3. Then the inner ring 5 is taken out and inserted into the soft lubricating layer 7. At this time, the multiple protrusions 8 on one side of the inner ring 5 will be inserted into the multiple grooves 9 on one side of the soft lubricating layer 7. The grooves 11 and protrusions 8 set on the surfaces of the outer ring 3 and the inner ring 5 can effectively increase the bonding force with the wear-resistant ring 4, prevent the wear-resistant ring 4 from falling off or shifting during use, further enhance the performance stability of the bushing body 2, and improve the safety and stability of driving. After installation, the bushing body 2 can be sleeved on the mounting hole of the front swing arm body 1 Then, the front swing arm body 1 is connected and fixed to the frame by high-strength bolts. During the daily driving of heavy trucks, the outer ring 3 and the inner ring 5 made of alloy steel and the wear-resistant ring 4 made of hard ceramic layer 6 and soft lubricating layer 7 can make the bushing body 2 have high strength, high wear resistance and good self-lubricating performance, which significantly improves the service life of the bushing body 2. At the same time, during daily driving, the lubricating oil can be poured into the oil delivery channel 13, and then the lubricating oil will slowly flow into the multiple drainage grooves 15. Through the guidance of the drainage grooves 15, the lubricating oil will drip on the heat dissipation holes 12 and enter the annular groove 14 for storage, so as to effectively reduce the friction and wear between the wear-resistant ring 4, and the heat dissipation effect of the bushing body 2 can be effectively improved by setting the multiple heat dissipation holes 12 on the outer ring 3 and the inner ring 5.

Claims

1. A high-strength wear-resistant bushing for a front swing arm of a heavy truck, comprising a front swing arm body (1), characterized in that: A mounting hole is provided at one end of the front swing arm body (1), a bushing body (2) is installed inside the mounting hole, the bushing body (2) comprises an outer ring (3) installed inside the mounting hole, a wear-resistant ring (4) is installed inside the outer ring (3), an inner ring (5) is installed inside the wear-resistant ring (4), both the outer ring (3) and the inner ring (5) are provided with limit members, and both the outer ring (3) and the inner ring (5) are provided with lubricating members.

2. The high-strength wear-resistant bushing for the front swing arm of a heavy truck according to claim 1, characterized in that: The wear-resistant ring (4) is made of a multilayer ceramic composite material, and comprises a hard ceramic layer (6) fixedly connected to the inside of the outer ring (3), and a soft lubricating layer (7) is fixedly connected to the inner wall of the hard ceramic layer (6).

3. The high-strength wear-resistant bushing for the front swing arm of a heavy truck according to claim 2, characterized in that: The limiting member comprises a plurality of protrusions (8) uniformly fixedly connected to the outer wall of the inner ring (5); the inner wall of the soft lubricating layer (7) is uniformly provided with a plurality of grooves (9); the shape and size of the protrusions (8) are consistent with those of the grooves (9).

4. The high-strength wear-resistant bushing for a front swing arm of a heavy truck according to claim 2, characterized in that: A plurality of protrusions 2 (10) are evenly fixedly connected to the outer wall of the hard ceramic layer (6), and a plurality of grooves 2 (11) are evenly opened on the inner wall of the outer ring (3), and the shape and size of the protrusions 2 (10) are consistent with those of the grooves 2 (11).

5. The high-strength wear-resistant bushing for the front swing arm of a heavy truck according to claim 1, characterized in that: A plurality of heat dissipation holes (12) are provided on the outer ring (3) and the inner ring (5).

6. The high-strength wear-resistant bushing for a front swing arm of a heavy truck according to claim 1, characterized in that: The lubricating component comprises an oil delivery channel (13) provided at the top of the outer ring (3) and the inner ring (5), two annular grooves (14) are symmetrically provided on the outer walls of the outer ring (3) and the inner ring (5), and a plurality of drainage grooves (15) are uniformly provided throughout the interior of the oil delivery channel (13).

7. The high-strength wear-resistant bushing for a front swing arm of a heavy truck according to claim 1, characterized in that: The outer ring (3) and the inner ring (5) are both made of alloy steel.

8. The high-strength wear-resistant bushing for a front swing arm of a heavy truck according to claim 1, characterized in that: The surfaces of the outer ring (3) and the inner ring (5) are both provided with a nano-ceramic wear-resistant layer.

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