Abnormal sound prevention automobile steering device

Abstract

The utility model discloses an abnormal sound prevention automobile steering gear which comprises a shell, an oil cavity is formed in the center of the top in the shell, first guide pipes are fixedly communicated with the two sides of the bottom of the oil cavity respectively, two second guide pipes are fixedly communicated with the positions, close to the two sides, of the bottom of the oil cavity respectively, and a rotating rod is movably connected to the center of the top of the shell. According to the abnormal sound preventing automobile steering device, through the design of the oil cavity, the first guide pipe, the second guide pipe, the rotating rod, a pushing cylinder, a piston head, a bidirectional lead screw, a driving gear and a driven gear, when the rotating rod is rotated, meshing transmission of the driving gear and the driven gear enables the bidirectional lead screw to rotate; by means of the design, lubricating oil in the oil cavity can be effectively squeezed out, the lubricating oil is guided into bearings on the two sides through the first guide pipe and the second guide pipe and dripped into the steering screw rod, and even lubrication of key components is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile steering gears, in particular to an automobile steering gear that prevents abnormal noise. Background Art

[0002] The car steering gear is the core component of the car steering system. Its main function is to convert the steering torque and steering angle input by the driver through the steering wheel into the deflection of the steering wheel (usually the front wheel), thereby controlling the direction of the vehicle. Simply put, the car steering gear is a device connecting the steering wheel and the wheel. It receives the driver's steering instructions and drives the wheel to make corresponding deflections.

[0003] The current design of automobile steering gears has a significant shortcoming, that is, its internal oil filling mechanism is not convenient enough. This defect makes the replenishment and maintenance of internal lubricating oil quite cumbersome during the use of the steering gear. Due to the lack of a simple oil filling channel or a dedicated oil filling port, it is often difficult for car owners or maintenance personnel to directly and effectively add or replace lubricating oil inside the steering gear. This inconvenience not only increases maintenance costs and time, but more importantly, it may lead to insufficient lubrication inside the steering gear, thereby causing abnormal noise. When the internal parts of the steering gear rub in the absence of sufficient lubrication, harsh noise will be generated, which not only affects driving comfort, but may also have a negative impact on the service life of the steering gear. Therefore, we propose an anti-abnormal noise automobile steering gear. Utility Model Content

[0004] The purpose of the utility model is to provide an automobile steering gear that prevents abnormal noise, so as to solve the significant shortcoming of the current automobile steering gear design mentioned in the above background technology, that is, its internal oil filling mechanism is not convenient enough. This defect makes the replenishment and maintenance of the internal lubricating oil quite cumbersome during the use of the steering gear. Due to the lack of a simple oil filling channel or a dedicated oil filling port, it is often difficult for the owner or maintenance personnel to directly and effectively add or replace the lubricating oil inside the steering gear. This inconvenience not only increases the maintenance cost and time, but more importantly, it may lead to insufficient lubrication inside the steering gear, thereby causing abnormal noise. When the internal parts of the steering gear rub in the absence of sufficient lubrication, harsh noise will be generated, which not only affects the driving comfort, but may also have a negative impact on the service life of the steering gear.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-abnormal noise automobile steering gear, comprising a shell, an oil chamber is opened at the center of the top of the shell, both sides of the bottom of the oil chamber are fixedly connected with a first conduit, and the bottom of the oil chamber is respectively fixedly connected with two second conduits at the two side positions, a rotating rod is movably connected with the center of the top of the shell, a driving gear is arranged at the center of the top of the oil chamber, piston heads are arranged at the two side positions in the oil chamber, pushing cylinders are fixedly connected to the opposite sides of the two piston heads, a bidirectional screw rod is arranged between the two pushing cylinders, and a driven gear is fixedly installed at the center position of the surface of the bidirectional screw rod.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] The anti-abnormal noise automobile steering gear is designed with an oil chamber, a first conduit, a second conduit, a rotating rod, a pushing cylinder, a piston head, a bidirectional screw, a driving gear and a driven gear. When the rotating rod is rotated, the meshing transmission of the driving gear and the driven gear causes the bidirectional screw to rotate, and then the two pushing cylinders and the piston head are pushed to move oppositely in the oil chamber through the thread transmission. This design enables the lubricating oil in the oil chamber to be effectively squeezed out, and is respectively introduced into the bearings on both sides and dripped onto the steering screw through the first conduit and the second conduit, thereby achieving uniform lubrication of key components and ensuring the lubrication effect between the bearings and the steering screw and the steering nut, thereby effectively preventing the abnormal noise problem caused by insufficient lubrication, which not only improves the driving comfort and safety, but also prolongs the service life of the steering gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 For this utility model Figure 1 A is a partial enlarged schematic diagram;

[0010] Figure 3 This is a structural stereogram of the push cylinder of the utility model;

[0011] Figure 4 It is the front view of the structure of the utility model.

[0012] In the figure: 1. outer shell; 2. side cover; 3. oil chamber; 4. first conduit; 5. second conduit; 6. oil filling pipe; 7. rotating rod; 8. knob; 9. push cylinder; 10. piston head; 11. bidirectional screw rod; 12. internal thread groove; 13. driving gear; 14. driven gear; 15. slide groove; 16. slider; 17. rocker arm shaft; 18. fan gear; 19. bearing; 20. steering screw; 21. steering nut. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] See also Figure 1-4 The utility model provides a technical solution: an anti-abnormal noise automobile steering gear, comprising a shell 1, an oil chamber 3 is opened at the center of the top of the shell 1, both sides of the bottom of the oil chamber 3 are fixedly connected with a first guide tube 4, the bottom of the oil chamber 3 is respectively fixedly connected with two second guide tubes 5 at the two sides, a rotating rod 7 is movably connected to the center of the top of the shell 1, a driving gear 13 is arranged at the center of the top of the oil chamber 3, piston heads 10 are arranged at the two sides of the oil chamber 3, the opposite sides of the two piston heads 10 are fixedly connected with a push cylinder 9, a bidirectional screw rod 11 is arranged between the two push cylinders 9, and a driven gear 14 is fixedly installed at the center of the surface of the bidirectional screw rod 11.

[0015] The two first conduits 4 are L-shaped structures, and the two first conduits 4 are symmetrically arranged on the left and right, ensuring that the lubricating oil can smoothly flow from the oil chamber 3 through the two first conduits 4 to the bearings 19 on both sides. At the same time, the symmetrical structure ensures the uniform distribution of the lubricating oil, effectively preventing the bearings 19 from wear and abnormal noise caused by uneven lubrication.

[0016] The top of the oil chamber 3 is fixedly connected to an oil filling pipe 6 on both sides, and a screw cap is screwed on the top of the oil filling pipe 6. The design of the oil filling pipe 6 and the screw cap makes it convenient and quick to add or replenish lubricating oil into the oil chamber 3. The screw cap can prevent the lubricating oil from leaking due to bumps during driving, thereby ensuring the stability and reliability of the lubrication system.

[0017] The bottom of the rotating rod 7 penetrates into the interior of the oil chamber 3 and is fixedly connected to the center of the top of the driving gear 13. A knob 8 is fixedly installed on the top of the rotating rod 7. By turning the knob 8, the rotating rod 7 and the driving gear 13 can be driven to rotate, thereby controlling the extrusion and distribution of the lubricating oil to provide sufficient lubrication for the key components of the steering gear.

[0018] The driving gear 13 and the driven gear 14 are meshingly connected. An internal thread groove 12 is provided at the center of the opposite side of the two push cylinders 9. The two ends of the bidirectional screw rod 11 respectively penetrate into the interior of the two internal thread grooves 12 and are threadedly connected with the inner walls of the internal thread grooves 12. The outer wall of the piston head 10 contacts the inner wall of the oil chamber 3. The meshing transmission of the driving gear 13 and the driven gear 14 drives the bidirectional screw rod 11 to rotate, and then the two push cylinders 9 and the piston head 10 move relative to each other in the oil chamber 3, thereby controlling the extrusion of the lubricating oil.

[0019] A slider 16 is fixedly connected to the side opposite to the top of the two push cylinders 9. The inner wall of the oil chamber 3 is provided with a slide groove 15 corresponding to the upper and lower ends of the two push cylinders 9. The top and bottom of the four sliders 16 arranged up and down are respectively slidably connected to the inner walls of the four slide grooves 15. The design of the slider 16 and the slide groove 15 limits the moving direction of the push cylinder 9, ensuring that it can only move along a specific direction in the oil chamber 3, thereby improving the stability and reliability of the lubrication system.

[0020] Side covers 2 are fixedly installed on both sides of the shell 1, and a steering screw 20 is arranged between the two corresponding side covers 2 inside the shell 1. The central thread on the surface of the steering screw 20 is connected with a steering nut 21. A rocker shaft 17 is movably connected to the bottom position of the center of the shell 1, and a fan tooth 18 is fixedly installed on the surface of the rocker shaft 17. The fan tooth 18 is meshed with the tooth groove opened at the bottom of the steering nut 21. Bearings 19 are fixedly installed on the opposite sides of the two side covers 2. One end of the steering screw 20 is fixedly connected to the inner ring of the left bearing 19, and the other end of the steering screw 20 passes through the right bearing 19 and the outside of the shell 1 in sequence. The outer wall of the steering screw 20 is fixedly connected to the inner ring of the right bearing 19. This part of the design constitutes the core transmission part of the steering gear. The transmission and conversion of the steering force are realized through the threaded transmission of the steering screw 20 and the steering nut 21, and the meshing of the fan tooth 18 with the tooth groove. At the same time, the bearing 19 ensures the stable rotation of the steering screw 20, thereby improving the transmission efficiency and reliability of the steering gear.

[0021] Working principle: When it is necessary to fill oil for the anti-abnormal noise automobile steering gear, first, the user needs to open the screw caps on the top of the oil filling pipe 6 located on both sides of the top of the oil chamber 3. After unscrewing the screw caps, the user can pour an appropriate amount of lubricating oil directly into the oil chamber 3 through the oil filling pipe 6. At this time, the user can rotate the knob 8 on the top to drive the rotating rod 7 and the driving gear 13 fixedly connected thereto to rotate. The rotation of the driving gear 13 will drive the driven gear 14 meshing therewith to rotate, and then drive the bidirectional screw rod 11 to rotate. Since the two ends of the bidirectional screw rod 11 are respectively threadedly connected to the internal thread grooves 12 on the two pushing cylinders 9, the rotation of the bidirectional screw rod 11 will cause the two pushing cylinders 9 and the piston head 10 to move oppositely in the oil chamber 3. Under the push of the two piston heads 10, the lubricating oil in the oil chamber 3 will respectively lubricate the bearing 19 and the steering screw 20 through the first conduit 4 and the second conduit 5 on both sides, which is easy to operate.

[0022] In summary, the anti-abnormal noise automobile steering gear is designed with the oil chamber 3, the first conduit 4, the second conduit 5, the rotating rod 7, the pushing cylinder 9, the piston head 10, the bidirectional screw 11, the driving gear 13 and the driven gear 14. When the rotating rod 7 is rotated, the meshing transmission of the driving gear 13 and the driven gear 14 causes the bidirectional screw 11 to rotate, and then the two pushing cylinders 9 and the piston head 10 are pushed to move oppositely inside the oil chamber 3 through the threaded transmission. This design enables the lubricating oil in the oil chamber 3 to be effectively squeezed out, and is respectively introduced into the bearings 19 on both sides and dripped onto the steering screw 20 through the first conduit 4 and the second conduit 5, thereby achieving uniform lubrication of key components and ensuring the lubrication effect between the bearings 19 and the steering screw 20 and the steering nut 21, thereby effectively preventing the abnormal noise problem caused by insufficient lubrication, which not only improves the driving comfort and safety, but also prolongs the service life of the steering gear.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile steering gear for preventing abnormal noise, comprising a housing (1), characterized in that: An oil chamber (3) is provided at the center of the top of the housing (1), first conduits (4) are fixedly connected to both sides of the bottom of the oil chamber (3), two second conduits (5) are fixedly connected to the two sides of the bottom of the oil chamber (3), a rotating rod (7) is movably connected to the center of the top of the housing (1), a driving gear (13) is provided at the center of the top of the oil chamber (3), piston heads (10) are provided at both sides of the oil chamber (3), a push cylinder (9) is fixedly connected to the opposite sides of the two piston heads (10), a bidirectional screw rod (11) is provided between the two push cylinders (9), and a driven gear (14) is fixedly installed at the center of the surface of the bidirectional screw rod (11).

2. The anti-sounding automobile steering gear according to claim 1, characterized in that: The two first conduits (4) are of L-shaped structure, and the two first conduits (4) are arranged symmetrically on the left and right.

3. The anti-sounding automobile steering gear according to claim 1, characterized in that: The top of the oil chamber (3) is fixedly connected to an oil filling pipe (6) at positions close to both sides, and a screw cap is screwed on the top of the oil filling pipe (6).

4. The anti-sounding automobile steering gear according to claim 1, characterized in that: The bottom of the rotating rod (7) penetrates into the interior of the oil chamber (3) and is fixedly connected to the center of the top of the driving gear (13). A knob (8) is fixedly mounted on the top of the rotating rod (7).

5. The anti-sounding automobile steering gear according to claim 1, characterized in that: The driving gear (13) and the driven gear (14) are meshingly connected, and the centers of the two opposite sides of the two push cylinders (9) are each provided with an internal thread groove (12). The two ends of the bidirectional screw rod (11) respectively penetrate into the interior of the two internal thread grooves (12) and are threadedly connected to the inner walls of the internal thread grooves (12), and the outer wall of the piston head (10) contacts the inner wall of the oil chamber (3).

6. The anti-sounding automobile steering gear according to claim 1, characterized in that: A slider (16) is fixedly connected to the bottom side of the two push cylinders (9) opposite to the top side, and the inner wall of the oil chamber (3) is provided with a slide groove (15) corresponding to the upper end and the lower end of the two push cylinders (9), and the top and bottom of the four sliders (16) arranged up and down are slidably connected to the inner walls of the four slide grooves (15) respectively.

7. The anti-sounding automobile steering gear according to claim 1, characterized in that: Side covers (2) are fixedly mounted on both sides of the housing (1); a steering screw (20) is arranged between the two corresponding side covers (2) inside the housing (1); a steering nut (21) is connected to the center of the surface of the steering screw (20) through a thread; a rocker shaft (17) is movably connected to the bottom of the center of the housing (1); a fan tooth (18) is fixedly mounted on the surface of the rocker shaft (17); the fan tooth (18) is meshedly connected with a tooth groove provided at the bottom of the steering nut (21); a bearing (19) is fixedly mounted on the opposite side of the two side covers (2); one end of the steering screw (20) is fixedly connected to the inner ring of the left bearing (19); the other end of the steering screw (20) passes through the right bearing (19) and the outside of the housing (1) in sequence; the outer wall of the steering screw (20) is fixedly connected to the inner ring of the right bearing (19).

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