Abnormal sound prevention structure of automobile mechanical steering gear

Abstract

The utility model provides an automobile mechanical steering gear abnormal sound prevention structure which comprises a steering gear shell, a firewall flange is fixedly installed on the outer side of the steering gear shell, a rubber fixing pad is fixedly installed on the outer side of the steering gear shell through a bolt, a fixing rod is arranged on the inner side of the rubber fixing pad, and the fixing rod is fixedly connected with the firewall flange. A dustproof sleeve is fixedly installed on the outer side of the fixing rod, and a tie rod body is fixedly installed on the outer side of the fixing rod. According to the abnormal sound prevention structure of the mechanical steering gear of the automobile, the abnormal sound is avoided by adopting a soft elastomer material, the sealing performance is improved, the steering shaft is subjected to special surface treatment, vibration and friction generated during rotation of the steering shaft are effectively reduced by arranging a fixing belt, and the abnormal sound is reduced; according to the steering gear, the meshing degree and the operation stability of the gears are improved, the installation firmness of the steering gear is guaranteed through the structure and the sealing connection part of the steering gear shell, abnormal sounds are reduced from multiple aspects, and the comfort and the safety of driving are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive mechanical steering systems, and in particular to an anti-noise structure for automotive mechanical steering systems. Background Technology

[0002] The automotive steering gear, also known as the steering unit or steering mechanism, is the most important component in the automotive steering system. Its function is to increase the force transmitted from the steering wheel to the steering transmission mechanism and change the direction of force transmission. During the driving process, the steering gear plays a crucial role. Therefore, a mechanical steering gear anti-noise structure is particularly needed.

[0003] However, the abnormal noises in existing automotive mechanical steering systems are mainly caused by excessive friction between internal parts, insufficient precision of the parts leading to loose fit, and long-term use resulting in severe wear and increased clearance, which in turn causes abnormal noises and affects the normal use of the steering system. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-noise structure for automotive mechanical steering systems, in order to solve the problems mentioned in the background art, which are mainly caused by excessive friction between internal parts of the steering system, insufficient precision of the parts leading to loose fit, and severe wear of parts after long-term use, resulting in increased gaps and abnormal noise, thus affecting the normal use of the steering system.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mechanical steering gear noise prevention structure for automobiles, comprising a steering gear housing, a firewall flange fixedly installed on the outer side of the steering gear housing, a placement groove formed on the outer side of the steering gear housing, a rubber fixing pad fixedly installed on the outer side of the steering gear housing by bolts, a rubber bushing fixedly installed on the outer side of the steering gear housing by bolts, a fixing rod provided on the inner side of the rubber fixing pad, a dust cover fixedly installed on the outer side of the fixing rod, and a tie rod body fixedly installed on the outer side of the fixing rod, the tie rod body being located away from the fixing rod. A connecting sleeve is fixedly installed at one end, an outer cross tie rod is fixedly installed on the outer side of the connecting sleeve, a steering gear is rotatably installed at the bottom of the outer cross tie rod, a connecting column is fixedly installed on the outer side of the fixed rod, a connecting groove is opened on the outer side of the connecting column, a steering gear input shaft is fixedly installed on the top of the connecting column, a fixing belt is fixedly installed on the top of the steering gear input shaft, a fixing column is fixedly installed on the top of the fixing belt, a steering block is fixedly installed on the top of the fixing column, the outer side of the steering block is movably installed with a concave connecting seat through a rotating shaft, and a universal block is fixedly installed on the top of the concave connecting seat.

[0006] Preferably, the steering gear housing and the fixing rod are fixedly connected by a rubber fixing pad and a rubber bushing, and the rubber fixing pad and the rubber bushing are adapted to the fixing rod.

[0007] Preferably, the outer side of the dust cover adopts a continuous concave-convex structure, and the dust cover, tie rod body, connecting sleeve, outer tie rod end and steering gear assembly are provided in two identical sets, and the two sets of the dust cover, tie rod body, connecting sleeve, outer tie rod end and steering gear assembly are symmetrically distributed about the vertical center line of the fixed rod.

[0008] Preferably, the fixing rod is adapted to the connecting groove, and the placement groove is adapted to the steering gear input shaft.

[0009] Preferably, the inner dimension of the fixing belt is consistent with the outer dimension of the fixing post, and the outer dimension of the steering input shaft is consistent with the inner dimension of the fixing belt.

[0010] Preferably, the steering block is located inside the concave connecting seat, and the rotating shaft passes through the steering block and extends to the outside of the concave connecting seat.

[0011] Preferably, the assembly of the steering input shaft, fixing belt, fixing column, steering block, concave connecting seat, rotating shaft and universal block adopts an inclined structure, and the vertical center lines of the steering input shaft, fixing belt, fixing column, steering block, concave connecting seat, rotating shaft and universal block are all located on the same vertical center line.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This automotive mechanical steering gear anti-noise structure, by using soft elastomer materials to avoid abnormal noise while improving sealing and the special surface treatment of the steering shaft, and by setting a fixing belt, effectively reduces the vibration and friction generated when the steering shaft rotates, reducing the generation of abnormal noise, making it more convenient and efficient. At the same time, the precision-machined steering gears and added lubricating grease improve the meshing degree and running smoothness of the gears, further reducing the generation of abnormal noise and effectively improving the overall stability. Furthermore, the structure of the steering gear housing, the sealing connection parts, and the special mounting and fixing device effectively absorb noise and vibration, ensuring the installation firmness of the steering gear. It reduces the generation of abnormal noise from multiple aspects, improves driving comfort and safety, and enhances the practicality of the device. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the steering gear housing of this utility model;

[0015] Figure 3 This is a schematic diagram of the horizontal tie rod part of this utility model;

[0016] Figure 4 This is a schematic diagram of the steering mechanism of this utility model.

[0017] In the diagram: 1. Steering gear housing; 2. Firewall flange; 3. Placement groove; 4. Rubber fixing pad; 5. Rubber bushing; 6. Fixing rod; 7. Dust cover; 8. Tie rod body; 9. Connecting sleeve; 10. Outer tie rod end; 11. Steering gear; 12. Connecting column; 13. Connecting groove; 14. Steering gear input shaft; 15. Fixing belt; 16. Fixing column; 17. Steering block; 18. Concave connecting seat; 19. Rotating shaft; 20. Universal block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution: an anti-noise structure for a mechanical steering gear in automobiles, including a steering gear housing 1, a firewall flange 2 fixedly installed on the outer side of the steering gear housing 1, a placement groove 3 opened on the outer side of the steering gear housing 1, a rubber fixing pad 4 fixedly installed on the outer side of the steering gear housing 1 by bolts, a rubber bushing 5 fixedly installed on the outer side of the steering gear housing 1 by bolts, a fixing rod 6 provided on the inner side of the rubber fixing pad 4, a dust cover 7 fixedly installed on the outer side of the fixing rod 6, a tie rod body 8 fixedly installed on the outer side of the fixing rod 6, and a connecting sleeve 9 fixedly installed at the end of the tie rod body 8 away from the fixing rod 6. An outer horizontal tie rod end 10 is fixedly installed on the outer side of sleeve 9. A steering gear 11 is rotatably installed on the bottom of the outer horizontal tie rod end 10. A connecting column 12 is fixedly installed on the outer side of the fixed rod 6. A connecting groove 13 is opened on the outer side of the connecting column 12. A steering input shaft 14 is fixedly installed on the top of the connecting column 12. A fixing belt 15 is fixedly installed on the top of the steering input shaft 14. A fixing column 16 is fixedly installed on the top of the fixing belt 15. A steering block 17 is fixedly installed on the top of the fixing column 16. The outer side of the steering block 17 is movably installed with a concave connecting seat 18 through a rotating shaft 19. A universal block 20 is fixedly installed on the top of the concave connecting seat 18.

[0020] Furthermore, the steering gear housing 1 and the fixed rod 6 are fixedly connected by rubber fixing pads 4 and rubber bushings 5. The rubber fixing pads 4 and rubber bushings 5 ​​are adapted to the fixed rod 6. By setting the rubber fixing pads 4 and rubber bushings 5, the stable connection between the steering gear housing 1 and the fixed rod 6 is ensured. At the same time, the use of rubber material reduces the friction on the fixed rod 6, thereby further reducing the generation of abnormal noise.

[0021] Furthermore, the outer side of the dust cover 7 adopts a continuous concave-convex structure. The dust cover 7, the main body of the tie rod 8, the connecting sleeve 9, the outer tie rod end 10 and the steering gear 11 are provided in two identical sets. The two sets of dust cover 7, tie rod main body 8, connecting sleeve 9, outer tie rod end 10 and steering gear 11 are symmetrically distributed about the vertical center line of the fixed rod 6. By adopting a continuous concave-convex structure on the outer side of the dust cover 7, fine particles are prevented from entering the steering gear, thereby reducing the friction and vibration between the steering gear and fine particles and reducing the generation of abnormal noise.

[0022] Furthermore, the fixing rod 6 is adapted to the connecting groove 13, and the placement groove 3 is adapted to the steering gear input shaft 14. Through the cooperation between the fixing rod 6, the connecting groove 13, the placement groove 3, and the steering gear input shaft 14, the entire device can be effectively assembled and the whole is more stable.

[0023] Furthermore, the inner dimension of the fixing belt 15 is consistent with the outer dimension of the fixing post 16, and the outer dimension of the steering input shaft 14 is consistent with the inner dimension of the fixing belt 15. Through the cooperation between the steering input shaft 14, the fixing belt 15 and the fixing post 16, it is ensured that the steering can be performed more stably during use, and the generation of abnormal noise is greatly reduced.

[0024] Furthermore, the steering block 17 is located inside the concave connecting seat 18, and the rotating shaft 19 passes through the steering block 17 and extends to the outside of the concave connecting seat 18. Through the cooperation between the steering block 17, the concave connecting seat 18 and the rotating shaft 19, noise and vibration are effectively absorbed, ensuring the installation of the steering gear and improving driving comfort and safety.

[0025] Furthermore, the assembly of the steering input shaft 14, fixing belt 15, fixing column 16, steering block 17, concave connecting seat 18, rotating shaft 19, and universal joint 20 adopts an inclined structure, and the vertical center lines of the steering input shaft 14, fixing belt 15, fixing column 16, steering block 17, concave connecting seat 18, rotating shaft 19, and universal joint 20 are all located on the same vertical center line. By adopting an inclined structure, the overall stability is effectively improved, noise and vibration are effectively absorbed, the installation firmness of the steering gear is ensured, driving comfort and safety are improved, and the practicality of the device is enhanced.

[0026] Working principle: During use, the operator first installs the steering gear housing 1. Then, the operator secures the fixing rod 6 to the steering gear housing 1 using the rubber fixing pad 4 and rubber bushing 5. Simultaneously, the operator installs the dust cover 7 on both sides of the fixing rod 6. After installation, the operator installs the two tie rod bodies 8 and connecting sleeves 9 simultaneously, and connects the outer tie rod end 10 to the steering gear 11 at the port of the connecting sleeve 9. The operator then installs the entire assembled structure onto the vehicle to be installed. Next, the operator installs the connecting post 12 on the steering control connecting post 12 onto the fixing rod 6. Then, the operator installs the steering gear input shaft 14, fixing belt 15, and fixing post 16 in sequence. Finally, the operator... The operator connects the steering block 17 to the rotating shaft 19 via the concave connecting seat 18. At this point, the steering part is installed, which effectively improves the overall stability and absorbs noise and vibration. Finally, the operator only needs to install the entire device on the car to install this anti-noise steering gear on the car where it is needed. The use of soft elastomer material avoids abnormal noise while improving sealing and the special surface treatment of the steering shaft, as well as the setting of the fixing belt 15, effectively reduces the vibration and friction generated when the steering shaft rotates, reducing the generation of abnormal noise and making it more convenient and convenient. At the same time, the precision-machined steering gear 11 and the added lubricating grease improve the meshing degree of the gears and the smoothness of operation, further reducing the generation of abnormal noise and improving the overall practicality.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A noise reduction structure for a mechanical steering gear in automobiles, comprising a steering gear housing (1), characterized in that: A firewall flange (2) is fixedly installed on the outer side of the steering gear housing (1). A placement groove (3) is provided on the outer side of the steering gear housing (1). A rubber fixing pad (4) is fixedly installed on the outer side of the steering gear housing (1) by bolts. A rubber bushing (5) is fixedly installed on the outer side of the steering gear housing (1) by bolts. A fixing rod (6) is provided on the inner side of the rubber fixing pad (4). A dust cover (7) is fixedly installed on the outer side of the fixing rod (6). A tie rod body (8) is fixedly installed on the outer side of the tie rod body (8). A connecting sleeve (9) is fixedly installed on the end of the tie rod body (8) away from the fixing rod (6). An outer tie rod end (10) is fixedly installed on the outer side of the connecting sleeve (9). A steering gear (11) is rotatably mounted on the bottom of the outer cross tie rod end (10). A connecting column (12) is fixedly mounted on the outer side of the fixed rod (6). A connecting groove (13) is opened on the outer side of the connecting column (12). A steering input shaft (14) is fixedly mounted on the top of the connecting column (12). A fixing belt (15) is fixedly mounted on the top of the steering input shaft (14). A fixing column (16) is fixedly mounted on the top of the fixing belt (15). A steering block (17) is fixedly mounted on the top of the fixing column (16). The outer side of the steering block (17) is movably mounted to the concave connecting seat (18) via a rotating shaft (19). A universal block (20) is fixedly mounted on the top of the concave connecting seat (18).

2. The anti-noise structure for a mechanical steering gear in an automobile according to claim 1, characterized in that: The steering gear housing (1) and the fixing rod (6) are fixedly connected by a rubber fixing pad (4) and a rubber bushing (5), and the rubber fixing pad (4) and the rubber bushing (5) are adapted to the fixing rod (6).

3. The anti-noise structure for a mechanical steering gear in an automobile according to claim 1, characterized in that: The outer side of the dust cover (7) adopts a continuous concave-convex structure. The dust cover (7), the main body of the horizontal tie rod (8), the connecting sleeve (9), the outer horizontal tie rod end (10) and the steering gear (11) are provided in two identical sets. The two sets of the dust cover (7), the main body of the horizontal tie rod (8), the connecting sleeve (9), the outer horizontal tie rod end (10) and the steering gear (11) are symmetrically distributed about the vertical center line of the fixed rod (6).

4. The anti-noise structure for a mechanical steering gear in an automobile according to claim 1, characterized in that: The fixing rod (6) is adapted to the connecting groove (13), and the placement groove (3) is adapted to the steering input shaft (14).

5. The anti-noise structure for a mechanical steering gear in an automobile according to claim 1, characterized in that: The inner dimension of the fixing belt (15) is consistent with the outer dimension of the fixing post (16), and the outer dimension of the steering input shaft (14) is consistent with the inner dimension of the fixing belt (15).

6. The anti-noise structure for a mechanical steering gear in an automobile according to claim 1, characterized in that: The steering block (17) is located inside the concave connecting seat (18), and the rotating shaft (19) passes through the steering block (17) and extends to the outside of the concave connecting seat (18).

7. The anti-noise structure for a mechanical steering gear in an automobile according to claim 1, characterized in that: The assembly of the steering input shaft (14), fixing belt (15), fixing column (16), steering block (17), concave connecting seat (18), rotating shaft (19) and universal block (20) adopts an inclined structure, and the vertical center lines of the steering input shaft (14), fixing belt (15), fixing column (16), steering block (17), concave connecting seat (18), rotating shaft (19) and universal block (20) are all located on the same vertical center line.

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