High wear resistant torsion resistant automotive thrust rod

Abstract

The utility model discloses a high wear -resisting anti -twist car thrust rod, specifically at car thrust rod technical field, including mounting panel, the butt joint cover and thrust rod, the butt joint cover fixed mounting is in the inside of mounting panel, and the thrust rod includes the rod body, the connecting plate, the joint, the lead screw and the nut, and one end of rod body is fixedly connected with the connecting plate, and the other end of rod body is fixedly connected with the joint, and one end of joint inserts into the butt joint cover. The utility model discloses through the design of friction welding, reinforcing weld and reinforcing rib, makes the rod body and joint can bear greater longitudinal force and torque, and the reliability is significantly enhanced under heavy load, rugged road condition, the combination of carburizing quenching rod body, self -lubricating bushing, hard alloy wear -resistant ring has reduced the wear rate of thrust rod greatly, and the wave shape anti -twist reinforcing section has strengthened the torsional rigidity, and effectively controls the clearance production in the process of driving, and improves vehicle driving stability.

Description

Technical Field

[0001] This utility model relates to the field of automotive thrust rod technology, and more specifically, to a high wear-resistant and torsion-resistant automotive thrust rod. Background Technology

[0002] The automotive thrust rod is a key load-bearing and guiding component in the automotive transmission system. It is usually a rod-shaped structure, mostly composed of a metal rod body, joint, wear-resistant bushing, connecting bolts, etc. It is a sub-component of the automotive transmission system, directly related to the frame and axle. It is a key link connecting the fixed body and the movable axle, and works in conjunction with the suspension system to maintain the vehicle's driving posture. It is widely used in trucks, buses, heavy trucks, off-road vehicles, and some heavy-duty SUVs in passenger cars are also equipped with it. It is especially suitable for scenarios that need to frequently bear longitudinal forces or cope with rough road conditions.

[0003] When existing automotive thrust rods are in use, the connection between the rod body and the joint is prone to cracking due to stress concentration. This problem is more pronounced under heavy loads or rough road conditions, directly increasing the risk of thrust rod failure and affecting the normal operation of the vehicle. Secondly, the overall wear resistance of the thrust rod is generally poor. After long-term use, the rod body or joint is prone to wear due to friction, which leads to an increase in the gap between components, undermining the stability of the axle's motion trajectory and reducing the vehicle's ride comfort and handling. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high wear-resistant and torsion-resistant automotive thrust rod, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high wear-resistant and torsion-resistant automotive thrust rod, comprising a mounting plate, a receiving sleeve, and a thrust rod. The receiving sleeve is fixedly installed inside the mounting plate. The thrust rod comprises a rod body, a connecting plate, a connector, a lead screw, and a nut. One end of the rod body is fixedly connected to the connecting plate, and the other end of the rod body is fixedly connected to the connector. One end of the connector is inserted into the receiving sleeve.

[0006] Furthermore, one end of the lead screw is fixedly connected to the connector, and the other end of the lead screw passes through the mounting plate, with the nut movably sleeved on the lead screw.

[0007] As can be seen, in the above technical solution, the nut is sleeved on the screw rod and the nut is in contact with the mounting plate, so that the joint and the receiving sleeve are fixed together, so as to facilitate the installation and fixing of the joint.

[0008] Furthermore, the rod body is made of alloy steel pipe by integral forging, and the surface of the rod body is subjected to carburizing and quenching treatment.

[0009] It can be seen that, in the above technical solutions, alloy steel pipes possess excellent hardenability and wear resistance.

[0010] Furthermore, a hard alloy wear-resistant ring is provided at the connection between the rod and the joint, and the rod and the joint are connected by friction welding plus annular reinforcing weld.

[0011] As can be seen, in the above technical solution, the hardness of cemented carbide is as high as HRA88-90, and its wear resistance is 10-15 times that of ordinary alloy steel. It can directly resist the frictional wear at the joint between the rod and the joint, avoiding the problem of wear of the rod and joint body in traditional design. The friction welded joint transition is smooth, which can reduce the stress concentration points of traditional bolted connection or single weld. The circumferential reinforcing weld further disperses the local stress. With the subsequent reinforcing ribs, it can effectively avoid the risk of cracking of the connection part under heavy load and rough road conditions.

[0012] Furthermore, multiple reinforcing ribs are fixedly installed on the joint and the receiving sleeve, wherein the multiple reinforcing ribs serve to improve the strength of the joint and the receiving sleeve.

[0013] Furthermore, the joint has an internal rust-preventive oil sealing cavity, and a self-lubricating wear-resistant bushing is provided inside the rust-preventive oil sealing cavity.

[0014] It can be seen that the above technical solution can effectively reduce the friction and wear between the joint and the connecting parts, thereby improving the service life of the joint.

[0015] Furthermore, the middle part of the rod is a wave-shaped anti-torsion reinforcement section, which can enhance the anti-torsion performance of the rod.

[0016] Furthermore, the surfaces of the rod, connecting plate, and joint are treated with an electrophoresis and powder coating composite anti-corrosion process, which enhances the anti-corrosion and rust-proof capabilities.

[0017] The technical effects and advantages of this utility model are as follows: 1. This utility model, through the design of friction welding, reinforced welds and reinforcing ribs, enables the rod body and joint to withstand greater longitudinal force and torque, significantly enhancing reliability under heavy loads and rugged road conditions. The combination of carburized and quenched rod body, self-lubricating bushing, and hard alloy wear-resistant ring greatly reduces the wear rate of the thrust rod. The wave-shaped anti-torsion reinforcement section enhances the anti-torsion performance, effectively controls the generation of gaps during driving, and improves the driving stability of the vehicle. 2. This utility model, through the composite anti-corrosion process and the design of the rust-preventive oil sealing cavity, enables the thrust rod to maintain good performance under dusty, humid, and corrosive working conditions, thereby extending the service life of the thrust rod. Attached Figure Description

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a perspective view of the present invention from a downward angle; Figure 3 This is a perspective view of the present invention from the rear view direction; Figure 4 This is a schematic diagram of the thrust rod structure of this utility model.

[0020] In the diagram: 1. Mounting plate; 2. Receiving sleeve; 3. Thrust rod; 301. Rod body; 302. Connecting plate; 303. Joint; 304. Lead screw; 305. Nut. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Refer to the instruction manual appendix Figure 1-3 This embodiment of a high wear-resistant and torsion-resistant automotive thrust rod includes a mounting plate 1, a receiving sleeve 2, and a thrust rod 3. The receiving sleeve 2 is fixedly installed inside the mounting plate 1. The thrust rod 3 includes a rod body 301, a connecting plate 302, a connector 303, a lead screw 304, and a nut 305. One end of the rod body 301 is fixedly connected to the connecting plate 302, and the other end of the rod body 301 is fixedly connected to the connector 303. One end of the connector 303 is inserted into the receiving sleeve 2. One end of the lead screw 304 is fixedly connected to the connector 303, and the other end of the lead screw 304 passes through the mounting plate 1. The nut 305 is movably sleeved on the lead screw 304.

[0023] like Figure 1-4As shown, the rod body 301 is made of alloy steel pipe by integral forging, and the surface of the rod body 301 is treated by carburizing and quenching. The connection between the rod body 301 and the joint 303 is provided with a hard alloy wear-resistant ring, and the rod body 301 and the joint 303 are connected by friction welding and annular reinforcing weld. Multiple reinforcing ribs are fixedly installed on the joint 303 and the receiving sleeve 2. The multiple reinforcing ribs play the role of improving the strength of the joint 303 and the receiving sleeve 2.

[0024] Among them, the hardness of cemented carbide is as high as HRA88-90, and its wear resistance is 10-15 times that of ordinary alloy steel. It can directly resist the frictional wear at the mating point of the rod 301 and the joint 303, avoiding the wear problem of the rod and joint body in traditional design. The friction welded joint 303 has a smooth transition, which can reduce the stress concentration points of traditional bolted connections or single welds. The circumferential reinforcing weld further disperses local stress. With the subsequent reinforcing ribs, it can effectively avoid the risk of cracking at the connection under heavy load and rough road conditions.

[0025] like Figure 1 and 4 As shown, the connector 303 has an internal rust-preventive oil sealing cavity, and a self-lubricating wear-resistant bushing is installed inside the rust-preventive oil sealing cavity. The middle part of the rod 301 is a wave-shaped anti-torsion reinforcement section, which can enhance the anti-torsion performance of the rod 301. The surfaces of the rod 301, the connecting plate 302 and the connector 303 are treated with an electrophoresis and powder coating composite anti-corrosion process, which can improve the anti-corrosion and anti-rust capabilities.

[0026] The usage method of this embodiment is as follows: In use, the mounting plate 1 is fixed to the vehicle frame with bolts. After the connecting plate 302 is welded to the rod 301, the other end of the rod 301 is connected to the joint 303 by friction welding. After welding, the burrs at the connection part are ground to ensure a smooth surface. Hard alloy wear-resistant rings are welded on the mating end faces of the rod 301 and the joint 303. Then, the whole is subjected to electrophoresis and powder coating composite anti-corrosion treatment. After the anti-corrosion layer has cured, rust-preventive oil is injected into the sealing cavity inside the joint 303 and a sealing ring is installed for sealing. The screw rod 304 is welded to the mounting section of the joint 303. Then, the locking washer is put on the screw rod 304. Then, one end of the connecting plate 302 is inserted into the receiving sleeve 2. Finally, the nut 305 is put on the screw rod 304 and the nut 305 is in contact with the mounting plate 1, thereby fixing the joint 303 and the receiving sleeve 2. The design of friction welding, reinforced welds and stiffening plates increases the connection strength between the rod 301 and the joint 303 by more than 50%, enabling it to withstand greater longitudinal forces and torques, and significantly enhancing reliability under heavy loads and rugged road conditions. The combination of carburized and quenched rod body, self-lubricating bushing, and hard alloy wear-resistant ring significantly reduces the wear rate of the thrust rod. The wave-shaped anti-torsion reinforcement section enhances the anti-torsion performance, effectively controls the generation of gaps during driving, and improves the driving stability of the vehicle. The composite anti-corrosion process and the design of the rust-preventive oil sealing cavity enable the thrust rod to maintain good performance under dusty, humid, and corrosive working conditions, thereby extending the service life of the thrust rod 3.

[0027] All contents not described in detail in the specification are existing technologies known to those skilled in the art. The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high wear-resistant and torsion-resistant automotive thrust rod, characterized in that, The device includes a mounting plate (1), a receiving sleeve (2), and a thrust rod (3). The receiving sleeve (2) is fixedly installed inside the mounting plate (1). The thrust rod (3) includes a rod body (301), a connecting plate (302), a connector (303), a lead screw (304), and a nut (305). One end of the rod body (301) is fixedly connected to the connecting plate (302), and the other end of the rod body (301) is fixedly connected to the connector (303). One end of the connector (303) is inserted into the receiving sleeve (2).

2. The high wear-resistant and torsion-resistant automotive thrust rod according to claim 1, characterized in that: One end of the lead screw (304) is fixedly connected to the connector (303), and the other end of the lead screw (304) passes through the mounting plate (1). The nut (305) is movably sleeved on the lead screw (304).

3. The high wear-resistant and torsion-resistant automotive thrust rod according to claim 1, characterized in that: The rod (301) is made of alloy steel pipe by integral forging, and the surface of the rod (301) is carburized and quenched.

4. The high wear-resistant and torsion-resistant automotive thrust rod according to claim 1, characterized in that: The connection between the rod (301) and the joint (303) is provided with a hard alloy wear-resistant ring, and the rod (301) and the joint (303) are connected by friction welding and annular reinforcing weld.

5. The high wear-resistant and torsion-resistant automotive thrust rod according to claim 1, characterized in that: Multiple reinforcing ribs are fixedly installed on the joint (303) and the receiving sleeve (2), wherein the multiple reinforcing ribs play the role of improving the strength of the joint (303) and the receiving sleeve (2).

6. The high wear-resistant and torsion-resistant automotive thrust rod according to claim 1, characterized in that: The connector (303) has an anti-rust oil sealing cavity inside, and a self-lubricating wear-resistant bushing is provided inside the anti-rust oil sealing cavity.

7. The high wear-resistant and torsion-resistant automotive thrust rod according to claim 1, characterized in that: The middle part of the rod (301) is a wave-shaped anti-torsion reinforcement section, which can enhance the anti-torsion performance of the rod (301).

8. The high wear-resistant and torsion-resistant automotive thrust rod according to claim 1, characterized in that: The surfaces of the rod (301), connecting plate (302) and joint (303) are treated with an electrophoresis and powder coating composite anti-corrosion process, in which the composite anti-corrosion process can improve the anti-corrosion and anti-rust capabilities.

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