Automobile steering torsion bar

Abstract

The invention discloses an automobile steering torsion bar which comprises a bar body, a meshing assembly is mounted at one end of the bar body, a lubricating assembly is mounted in the meshing assembly, an oil storage assembly is arranged in the bar body, one end of the oil storage assembly fixedly communicates with a communicating assembly, and two mounting grooves are symmetrically formed in one end of the bar body; a mounting groove is formed in one end of the rod body, a fixing assembly is mounted in the mounting groove, an assembling assembly is fixedly mounted at the other end of the rod body, rotating bearings are fixedly mounted on the outer sides of the two ends of the rod body correspondingly, mounting plates are fixedly mounted on the outer sides of the two rotating bearings correspondingly, and locking assemblies used for mounting the torsion bar are fixedly connected to one ends of the mounting plates. Through cooperation of the meshing assembly and the fixing assembly, the meshing end of the torsion bar can be independently disassembled, through cooperation of the oil storage assembly, the connection assembly and the lubricating assembly, the meshing end of the torsion bar can be continuously lubricated, and the torsion bar can be installed through the locking assembly in a simple pressing torsion mode.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive steering components, and specifically to an automotive steering torsion bar. Background Technique

[0002] An automotive steering torsion bar is an important component in an automotive steering system. The torsion bar is generally a slender rod-shaped structure and is usually installed in the steering mechanism of an automobile. When the driver turns the steering wheel, the steering shaft drives the torsion bar to twist. The torsional force generated by the torsion bar is transmitted to components such as the steering arm, thereby driving the wheels to turn. The torsional angle of the torsion bar is proportional to the rotation angle of the steering wheel. In this way, precise control of the driver's operation of the steering wheel and the steering angle of the wheels is achieved. For different types and grades of automobiles, the design and performance parameters of their steering torsion bars will be different to adapt to the steering requirements and driving characteristics of various vehicles.

[0003] However, after long-term use of the existing automotive steering torsion bars, one end for transmission meshing may experience wear due to lack of lubrication. Most of the existing steering torsion bars are integrally formed, but generally, it is the meshing teeth at the meshing end of the torsion bar that are damaged. The existing torsion bars cannot replace only the meshing end, resulting in unnecessary losses, and the installation of the steering torsion bar is rather troublesome.

[0004] Therefore, an automotive steering torsion bar needs to be provided. Summary of the Invention

[0005] The purpose of the present invention is to provide an automotive steering torsion bar to solve the problems proposed in the above background technique, that is, after long-term use of the existing automotive steering torsion bars, one end for transmission meshing may experience wear due to lack of lubrication. Most of the existing steering torsion bars are integrally formed, but generally, it is the meshing teeth at the meshing end of the torsion bar that are damaged. The existing torsion bars cannot replace only the meshing end, resulting in unnecessary losses, and the installation of the steering torsion bar is rather troublesome.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An automotive steering torsion bar, including a rod body. One end of the rod body is provided with a meshing assembly, and a lubrication assembly is installed inside the meshing assembly. An oil storage assembly is provided inside the rod body, and one end of the oil storage assembly is fixedly communicated with a connection assembly. Two installation grooves are symmetrically provided at one end of the rod body, and a fixing assembly is installed inside the installation grooves. The other end of the rod body is fixedly installed with an assembly component. Rotating bearings are fixedly installed on the outer sides of both ends of the rod body, and mounting plates are fixedly installed on the outer sides of the two rotating bearings. One end of the mounting plate is fixedly connected with a locking component for installing the torsion bar.

[0007] Preferably, the assembly component includes an assembly block which is fixedly installed at one end of the rod body. An assembly hole penetrating through is provided at one end of the assembly block. The design of the assembly block and the assembly hole makes the installation and disassembly processes relatively simple, and this connection method can provide a reliable mechanical connection and is relatively firm.

[0008] Preferably, the meshing component includes a meshing end. A connecting block is fixedly installed at one end of the meshing end. The connecting block is slidably installed inside one end of the rod body. A plurality of meshing teeth are equidistantly arranged on the meshing end. When problems such as wear and damage occur at the meshing end of the torsion bar, only the damaged meshing end needs to be replaced, rather than the entire torsion bar.

[0009] Preferably, an oil outlet is provided on the outer side of the meshing end, an oil outlet groove is provided inside the meshing end, two notches are symmetrically provided at one end of the connecting block, and a connecting groove is provided inside the connecting block. The oil outlet and the connecting groove are both communicated with the oil outlet groove.

[0010] Preferably, the lubrication component includes a fixing block which is fixedly installed on the inner wall of the oil outlet groove. A second spring is sleeved outside the fixing block. A sealing bead is fixedly installed at the top of the second spring. The sealing bead is in contact connection with the oil outlet. The lubricating oil flowing out during each meshing can directly act on the meshing part between the torsion bar and other components. These parts are the key areas of friction and wear. Precise oil supply can effectively reduce the friction coefficient of these key parts, reduce wear, and extend the service life of the components.

[0011] Preferably, the oil storage component includes an oil storage chamber which is provided inside the rod body. A feed pipe is fixedly communicated with the top of the oil storage chamber. A threaded cover is threadedly connected to the top of the feed pipe. There is no need to frequently perform external lubrication and maintenance on the torsion bar. Compared with a torsion bar without an oil storage chamber that requires regular disassembly of components for lubrication, this design with an internal oil storage chamber greatly reduces the frequency and workload of maintenance.

[0012] Preferably, the connection component includes a connector. One end of the connector extends into the oil storage chamber. A sealing ring is snap-fitted inside the connector. Through the connector and the sealing ring, the tight fit between the connector and the sealing ring can form an effective sealing barrier at the meshing end to prevent the lubricating oil from seeping out from the connection part.

[0013] Preferably, the fixing component includes two cams which are respectively rotatably installed inside two installation grooves. Handles are fixedly installed on the outsides of the two cams. During the rotation of the cams, a uniform and stable pressure can be applied to the connecting block to make the connecting block closely fit with the meshing end, achieving a reliable fixing effect.

[0014] Preferably, the locking assembly includes two first fixing plates and two second fixing plates. The two first fixing plates are respectively fixedly installed at one end of the two mounting plates. A sliding shell is fixedly installed in the middle of the first fixing plate. A locking block is fixedly installed in the middle of the second fixing plate. Locking ports are formed in the middle of the two locking blocks. During installation, only need to align the torsion bar with the corresponding position, and then through simple operations, the fixation of the torsion bar can be achieved, without complex tools or cumbersome steps, greatly saving installation time and labor costs.

[0015] Preferably, connecting rods are slidably installed at the bottoms of the two sliding shells. Two locking rods are symmetrically and fixedly installed at the bottom of the connecting rod. A sliding block is fixedly installed at the top of the connecting rod. A knob is fixedly installed at the top of the sliding block. The two sliding blocks are respectively slidably installed inside the two sliding shells. First springs are sleeved on the middle parts of the two connecting rods, ensuring that the torsion bar is installed in the correct position and guaranteeing its fitting accuracy with other related components.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] Through the cooperation of the meshing assembly and the fixing assembly, the meshing end of the torsion bar can be disassembled separately. When problems such as wear and damage occur at the meshing end of the torsion bar, only need to replace the damaged meshing end, rather than replacing the entire torsion bar, which greatly saves the maintenance cost, because the whole torsion bar is usually of high price. Replacing the meshing end alone can avoid unnecessary cost expenditure, and during the rotation of the cam, a uniform and stable pressure can be exerted on the connecting block, making the connecting block closely fit with the meshing end, achieving a reliable fixing effect;

[0018] Through the cooperation of the oil storage assembly, the connection assembly and the lubrication assembly, the meshing end of the torsion bar can be continuously lubricated, and only a small amount of lubricating oil flows out during meshing, which can effectively prevent the leakage of lubricating oil and can also extend the service life of the torsion bar;

[0019] Through the locking assembly, the torsion bar can be installed by using a simple pressing and twisting method, without complex tools or cumbersome steps, greatly saving installation time and labor costs. The locking assembly can provide accurate positioning and fixation for the torsion bar, ensuring that the torsion bar is installed in the correct position and guaranteeing its fitting accuracy with other related components, which helps to improve the performance and stability of the whole system and reduce faults and wear caused by installation deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the automotive steering torsion bar of the present invention;

[0021] Figure 2 is a front view of the automotive steering torsion bar of the present invention;

[0022] Figure 3 Side schematic view of the automotive steering torsion bar of the present invention;

[0023] Figure 4 Schematic view of the engagement assembly of the automotive steering torsion bar of the present invention;

[0024] Figure 5 Schematic view of the lubrication assembly of the automotive steering torsion bar of the present invention;

[0025] Figure 6 For the automotive steering torsion bar of the present invention Figure 5 Partial enlarged view of area A;

[0026] Figure 7 Schematic view of the locking assembly of the automotive steering torsion bar of the present invention;

[0027] Figure 8 Partial cross-sectional view of the automotive steering torsion bar of the present invention.

[0028] In the figure: 1, rod body; 2, rotating bearing; 3, mounting plate; 4, first fixing plate; 5, second fixing plate; 6, locking block; 7, locking port; 8, sliding shell; 9, first spring; 10, connecting rod; 11, locking rod; 12, sliding block; 13, knob; 14, engagement end; 15, engagement teeth; 16, connecting block; 17, notch; 18, connecting groove; 19, oil outlet groove; 20, fixing block; 21, second spring; 22, sealing bead; 23, oil outlet; 24, assembly block; 25, assembly hole; 26, oil storage chamber; 27, oil inlet pipe; 28, threaded cap; 29, joint; 30, sealing ring; 31, mounting groove; 32, cam; 33, handle. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] Please refer to Figures 1-8 , the present invention provides an automotive steering torsion bar, including a rod body 1, an engagement assembly is installed at one end of the rod body 1, a lubrication assembly is installed inside the engagement assembly, an oil storage assembly is provided inside the rod body 1, one end of the oil storage assembly is fixedly communicated with a connection assembly, two mounting grooves 31 are symmetrically opened at one end of the rod body 1, a fixing assembly is installed inside the mounting grooves 31, an assembly assembly is fixedly installed at the other end of the rod body 1, rotating bearings 2 are fixedly installed on the outer sides of both ends of the rod body 1, mounting plates 3 are fixedly installed on the outer sides of the two rotating bearings 2, and a locking assembly for installing the torsion bar is fixedly connected to one end of the mounting plate 3.

[0031] Further, the assembly component includes an assembly block 24, which is fixedly installed at one end of the rod body 1. An assembly hole 25 is provided through one end of the assembly block 24. The connection end of the assembly block 24 is matched with the connection end of the vehicle steering shaft, and the assembly holes 25 between the two are fixed by screws, so that the torsion bar is connected to the vehicle steering shaft.

[0032] Further, the meshing component includes a meshing end 14. A communicating block 16 is fixedly installed at one end of the meshing end 14. The communicating block 16 is slidably installed inside one end of the rod body 1. A plurality of meshing teeth 15 are equidistantly arranged on the meshing end 14. An oil outlet 23 is provided on the outside of the meshing end 14. An oil outlet groove 19 is provided inside the meshing end 14. Two notches 17 are symmetrically provided at one end of the communicating block 16. A communicating groove 18 is provided inside the communicating block 16. The oil outlet 23 and the communicating groove 18 are both communicated with the oil outlet groove 19. The lubrication component includes a fixing block 20, which is fixedly installed on the inner wall of the oil outlet groove 19. A second spring 21 is sleeved outside the fixing block 20. A sealing bead 22 is fixedly installed at the top of the second spring 21. The sealing bead 22 is in contact connection with the oil outlet 23. The oil storage component includes an oil storage chamber 26, which is provided inside the rod body 1. A fuel inlet pipe 27 is fixedly communicated with the top of the oil storage chamber 26. A threaded cap 28 is threadedly connected to the top of the fuel inlet pipe 27. After the meshing end 14 is installed, the threaded cap 28 is unscrewed, and lubricating oil is added to the inside of the oil storage chamber 26 through the fuel inlet pipe 27. The lubricating oil enters the inside of the oil outlet groove 19 through the joint 29 and the communicating groove 18. When the vehicle steering torsion bar is working, a plurality of meshing teeth 15 on the meshing end 14 will engage and drive with the connecting component. Every time it meshes once, the sealing bead 22 will be squeezed once, so that the sealing bead 22 squeezes the second spring 21. The bottom of the second spring 21 is fixedly installed on the fixing block 20. When the second spring 21 is stressed, it drives the sealing bead 22 to leave the oil outlet 23. At this time, a small amount of oil inside the oil outlet groove 19 will flow out through the oil outlet 23 to continuously lubricate the meshing teeth 15. After each circle of meshing, the second spring 21 contacts the extrusion force and drives the sealing bead 22 to reset to continue sealing the oil outlet 23 to avoid waste.

[0033] The two cams 32 are respectively rotatably mounted in the two mounting grooves 31 , and the outsides of the two cams 32 are fixedly mounted with handles 33 . When installing the engaging end 14 , the connecting block 16 on one side of the engaging end 14 is inserted into the interior of one end of the rod body 1 , and the engaging end 14 is rotated so that the two notches 17 and the positions of the two cams 32 are aligned. Then, the insertion is continued so that one end of the connecting block 16 contacts the sealing ring 30 , and then the cam 32 is rotated by the handle 33 . When the cam 32 is rotated, the groove part of the connecting block 16 is squeezed to fix the connecting block 16 and make one end of the connecting block 16 tightly fit with the sealing ring 30 for sealing. After the fixation is completed, the oil outlet groove 19 is connected to the oil storage tank 26 through the connecting groove 18 and the connector 29 .

[0034] Furthermore, the locking assembly includes two first fixing plates 4 and two second fixing plates 5. The two first fixing plates 4 are respectively fixedly mounted on one end of the two mounting plates 3. A sliding shell 8 is fixedly mounted in the middle of the first fixing plate 4. A locking block 6 is fixedly mounted in the middle of the second fixing plate 5. The middle parts of the two locking blocks 6 are both locked and have locking ports 7. The two second fixing plates 5 are assembled inside the steering gear and accurately match the two first fixing plates 4. When installing the torsion bar, first turn the knob 13 to align the connecting rod 10 and the locking rod 11 fixed at the bottom with the direction of the locking port 7, and then align the two first fixing plates 4 with the two The second fixed plate 5 is matched so that the two connecting rods 10 respectively drive the two locking rods 11 to insert into the interior of the locking port 7, and then the knob 13 is pressed to move the sliding block 12 along the interior of the sliding shell 8, squeezing the first spring 9 to make it bear force, and when the sliding block 12 moves, the locking rod 11 is driven to exceed the locking port 7 through the connecting rod 10, and then the sliding block 12 is rotated by the knob 13, and the locking rod 11 at the bottom is driven to rotate through the connecting rod 10, and staggered with the position of the locking port 7, and then the pressing is stopped, and the locking rod 11 is squeezed with the bottom of the locking block 6 by the elastic force of the first spring 9 to complete the locking.

[0035] Further, connecting rods 10 are slidably installed at the bottoms of both sliding shells 8. Two locking rods 11 are symmetrically and fixedly installed at the bottoms of the connecting rods 10. A sliding block 12 is fixedly installed at the top of the connecting rod 10. A knob 13 is fixedly installed at the top of the sliding block 12. The two sliding blocks 12 are respectively slidably installed inside the two sliding shells 8. First springs 9 are sleeved on the middle parts of the two connecting rods 10. When the torsion rod needs to be disassembled, press and rotate the knob 13 again. The locking rods 11 at the bottom are driven to rotate by the sliding blocks 12 and the connecting rods 10 to match the position of the locking port 7. At this time, the locking rods 11 no longer press the locking blocks 6, and the first springs 9 are also released from the stressed state to drive the sliding blocks 12 and the connecting rods 10 to reset to complete the unlocking.

[0036] When the embodiment of the present application is in use: first fix the meshing end 14 to the rod body 1, and when installing the meshing end 14, insert the connecting block 16 on one side of the meshing end 14 into the interior of one end of the rod body 1, rotate the meshing end 14 so that the two notches 17 are aligned with the positions of the two cams 32, and continue to insert so that one end of the connecting block 16 contacts the sealing ring 30, and then rotate the cam 32 by the handle 33. When the cam 32 rotates, the groove part of the connecting block 16 is squeezed to fix the connecting block 16, and one end of the connecting block 16 is tightly fitted with the sealing ring 30 for sealing. After the fixation is completed, the oil outlet groove 19 is connected to the oil storage tank 26 through the connecting groove 18 and the joint 29. After the meshing end 14 is installed, screw Open the threaded cover 28 and add lubricating oil to the inside of the oil storage tank 26 through the oil inlet pipe 27. The lubricating oil enters the inside of the oil outlet groove 19 through the joint 29 and the connecting groove 18. When installing the torsion bar, first turn the knob 13 to drive the connecting rod 10 and the locking rod 11 fixed at the bottom to align with the direction of the locking port 7. The two second fixed plates 5 are assembled inside the steering gear and accurately aligned with the two first fixed plates 4. Then, the two first fixed plates 4 are matched with the two second fixed plates 5, so that the two connecting rods 10 respectively drive the two locking rods 11 to insert into the inside of the locking port 7, and then press the knob 13 to move the sliding block 12 along the inside of the sliding shell 8, squeeze the first spring 9 to make it bear force, and when the sliding block 12 moves, through the connection The rod 10 drives the locking rod 11 to exceed the locking port 7, and then the sliding block 12 is rotated by the knob 13, and the locking rod 11 at the bottom is rotated by the connecting rod 10 to stagger the position of the locking port 7, and then the pressing is stopped. The elastic force of the first spring 9 is used to squeeze the locking rod 11 and the bottom of the locking block 6 to complete the locking. When the steering torsion bar of the automobile is working, the multiple meshing teeth 15 on the meshing end 14 will mesh with the connecting component for transmission. Every time the meshing is completed, the sealing bead 22 will be squeezed once, so that the sealing bead 22 squeezes the second spring 21. The bottom of the second spring 21 is fixedly mounted on the fixed block 20. When the second spring 21 is subjected to force, it drives the sealing bead 22 to leave the oil outlet 23. At this time, the oil inside the oil outlet groove 19 will A small amount of oil flows out through the oil outlet 23 to continuously lubricate the meshing teeth 15. After each circle of meshing, the second spring 21 contacts the extrusion force, driving the sealing bead 22 to reset and continue to seal the oil outlet 23 to avoid waste. When the meshing end 14 is damaged after long-term use and needs to be replaced, the cam 32 is released from the extrusion of the connecting block 16 through the handle 33, and then the meshing end 14 can be pulled out. When the torsion bar needs to be disassembled, press and turn the knob 13 again, and the sliding block 12 and the connecting rod 10 drive the locking rod 11 at the bottom to rotate and match the position of the locking port 7. At this time, the locking rod 11 no longer squeezes the locking block 6, and the first spring 9 is also released from the force state, driving the sliding block 12 and the connecting rod 10 to reset and complete the unlocking.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automotive steering torsion bar, comprising a rod body (1), characterized in that: One end of the rod body (1) is provided with an engaging component, and a lubricating component is installed inside the engaging component. An oil storage component is provided inside the rod body (1). One end of the oil storage component is fixedly communicated with a connecting component. Two mounting grooves (31) are symmetrically provided at one end of the rod body (1). A fixing component is installed inside the mounting groove (31). The other end of the rod body (1) is fixedly provided with an assembling component. Rotating bearings (2) are fixedly installed on the outer sides of both ends of the rod body (1). Mounting plates (3) are fixedly installed on the outer sides of the two rotating bearings (2). One end of the mounting plate (3) is fixedly connected with a locking component for installing a torsion bar.

2. A vehicle steering torsion bar according to claim 1, characterized in that: The assembling component includes an assembling block (24). The assembling block (24) is fixedly installed at one end of the rod body (1). A through assembling hole (25) is provided at one end of the assembling block (24).

3. A vehicle steering torsion bar according to claim 1, characterized in that: The engaging component includes an engaging end (14). One end of the engaging end (14) is fixedly installed with a connecting block (16). The connecting block (16) is slidably installed inside one end of the rod body (1). A plurality of engaging teeth (15) are equidistantly provided on the engaging end (14).

4. A vehicle steering torsion bar according to claim 3, characterized in that: An oil outlet (23) is provided on the outer side of the engaging end (14). An oil outlet groove (19) is provided inside the engaging end (14). Two notches (17) are symmetrically provided at one end of the connecting block (16). A connecting groove (18) is provided inside the connecting block (16). The oil outlet (23) and the connecting groove (18) are both communicated with the oil outlet groove (19).

5. A vehicle steering torsion bar according to claim 4, characterized in that: The lubricating component includes a fixing block (20). The fixing block (20) is fixedly installed on the inner wall of the oil outlet groove (19). A second spring (21) is sleeved on the outer side of the fixing block (20). A sealing bead (22) is fixedly installed at the top of the second spring (21). The sealing bead (22) is in contact connection with the oil outlet (23).

6. The automotive steering torsion bar according to claim 1, characterized in that: The oil storage component includes an oil storage chamber (26). The oil storage chamber (26) is provided inside the rod body (1). An oil inlet pipe (27) is fixedly communicated with the top of the oil storage chamber (26). A threaded cover (28) is threadedly connected to the top of the oil inlet pipe (27).

7. A vehicle steering torsion bar according to claim 6, characterized in that: The connecting component includes a connector (29). One end of the connector (29) extends into the oil storage chamber (26). A sealing ring (30) is snap-fitted inside the connector (29).

8. A vehicle steering torsion bar according to claim 1, characterized in that: The fixing component includes two cams (32). The two cams (32) are respectively rotatably installed inside the two mounting grooves (31). Handles (33) are fixedly installed on the outsides of the two cams (32).

9. A vehicle steering torsion bar according to claim 1, characterized in that: The locking component includes two first fixing plates (4) and two second fixing plates (5). The two first fixing plates (4) are respectively fixedly installed at one end of the two mounting plates (3). A sliding shell (8) is fixedly installed in the middle of the first fixing plate (4). A locking block (6) is fixedly installed in the middle of the second fixing plate (5). Locking ports (7) are snap-fitted in the middles of the two locking blocks (6).

10. A vehicle steering torsion bar according to claim 9, characterized in that: The bottom of the sliding shell (8) is slidably installed with a connecting rod (10). The bottom of the connecting rod (10) is symmetrically and fixedly installed with two locking rods (11). The top of the connecting rod (10) is fixedly installed with a sliding block (12). The top of the sliding block (12) is fixedly installed with a knob (13). The two sliding blocks (12) are respectively slidably installed inside the two sliding shells (8). The middle parts of the two connecting rods (10) are both sleeved with a first spring (9).

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