CN218662010U - Steering gear, steering system and vehicle - Google Patents
Steering gear, steering system and vehicle Download PDFInfo
- Publication number
- CN218662010U CN218662010U CN202223124595.0U CN202223124595U CN218662010U CN 218662010 U CN218662010 U CN 218662010U CN 202223124595 U CN202223124595 U CN 202223124595U CN 218662010 U CN218662010 U CN 218662010U
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- Prior art keywords
- steering gear
- rack
- spring
- stopper
- wall
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- 238000007789 sealing Methods 0.000 claims description 9
- 239000004519 grease Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000003116 impacting effect Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model provides a steering gear, a steering system and vehicle relates to vehicle technical field, and the steering gear includes steering gear casing, rack, stopper and spring, and the steering gear casing is worn to locate by the rack, and rack connection has the striking structure, and the inner wall of steering gear casing is provided with the backstop step, and the stopper is located the steering gear casing, and the stopper movable sleeve locates on the rack, and the spring sets up between stopper and backstop step, and the rack is used for driving the striking structure and removes and strike the stopper. The impact energy of the impact structure impacting the limiting block is absorbed through the compression of the spring, and the impact noise is eliminated; in the long-term use of this steering gear, the spring can select for use general steel matter, and is long-lived, difficult ageing.
Description
Technical Field
The utility model relates to a vehicle technical field particularly, relates to a steering gear, a steering system and vehicle.
Background
Automobile steering gears are the most important parts in automobile steering systems. A rack and pinion steering gear is the most common steering gear, and its basic structure includes a pair of gears and a rack engaged with each other, when a steering shaft drives the gears to rotate, the rack is driven to make a linear motion, and then a tie rod is driven by the linear motion of the rack to steer a steering wheel.
In order to avoid the steering transition of the steering wheel from being out of control, the rack needs to be provided with a limiting structure at the stroke limit position. The current mainstream design of rack limiting is that a limiting block is matched with a rubber vibration damping structure, namely, a rubber ring is arranged between the limiting block and a shell. However, the rubber ring is easy to age and lose efficacy, needs to be replaced regularly, is high in cost, and if not replaced in time, the steering gear will have impact abnormal sound, so that the driving experience is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the rack of current auto steering ware and take place the problem of striking abnormal sound because of the rubber circle is ageing with the stopper.
In order to solve the problem, the utility model provides a steering gear, including steering gear casing, rack, stopper and spring, the rack is worn to locate steering gear casing, rack connection has the striking structure, just the inner wall of steering gear casing is provided with the backstop step, the stopper is located in the steering gear casing, just the stopper is used for the cover to locate on the rack, the spring set up in the stopper with between the backstop step, the rack is used for driving the striking structure removes and strikes the stopper.
The utility model provides a pair of steering gear compares in prior art, has but not be limited to below
Has the beneficial effects that:
the steering gear can be arranged at a tie rod of a vehicle steering system, for example, a left tie rod is taken as an example, as a rack drives an impact structure to move towards a limiting block, a wheel rotates leftwards gradually, when the impact structure connected with the rack impacts the limiting block, the limiting block is driven to move towards a stopping step so as to compress a spring at the stopping step, when the limiting block cannot move towards the stopping step continuously, the rack also moves to a limit position for driving the wheel to rotate leftwards, the wheel rotates leftwards to a left limit position, and when the rack moves to the limit position, impact energy is absorbed through the compression of the spring to eliminate impact noise, wherein the impact structure can be an inner ball head assembly connected to the end part of the rack in the traditional steering gear; in addition, because the spring can be made of universal steel, the service life is long, the steering gear is not easy to age, the service life of the steering gear can be ensured to be longer, the vehicle cost is reduced, and the driving feeling is ensured.
Furthermore, the inner wall of the steering gear shell is provided with a limiting structure, and the limiting structure is used for limiting the movement range of the limiting block relative to the steering gear shell.
Furthermore, the limiting structure is a groove arranged on the inner wall of the steering gear shell, a protrusion is arranged on the limiting block, the protrusion is arranged in the groove, and the length of the protrusion is smaller than that of the groove in the moving direction of the rack.
Further, in the moving direction of the rack, the side walls at the two ends of the groove are respectively a limit position wall and a limit wall;
the rack is used for driving the impact structure to impact the limiting block until the limiting block abuts against the limit position wall;
when the limiting block abuts against the limit position wall, the spring is in a compressed state;
when the spring returns to the natural state, the limiting block is in a state of abutting against the limiting wall.
Further, the spring is a diaphragm spring, a cylindrical spring or a wave spring sleeved on the rack.
Further, diaphragm spring includes ring main part and separation and indicates, and is a plurality of the separation indicates to encircle to be arranged the inner circle of ring main part, just the separation indicate with the ring main part is the contained angle setting, the face of ring main part is used for the butt backstop step, and is a plurality of the separation indicates to keep away from the one end of ring main part is used for the butt the stopper.
Further, in the radial direction of the ring main body, the outer ring of the ring main body abuts against the inner wall of the steering gear housing.
Further, the steering gear further comprises a sealing structure, the inside of the steering gear shell is filled with grease, and the sealing structure is used for sealing the grease inside the steering gear shell.
The utility model also provides a steering system, include as before the steering gear.
The technical improvements and advantageous effects of the steering system are the same as those of the steering gear, and thus a detailed description thereof will not be given.
The utility model also provides a vehicle, include as before a steering system.
The technical improvements and advantageous effects of the vehicle are the same as those of the steering system, and thus, a detailed description of the vehicle will not be given.
Drawings
Fig. 1 is a schematic structural diagram of a steering gear according to an embodiment of the present invention, wherein the direction of an arrow in the drawing refers to the moving direction of a rack.
Description of the reference numerals:
1. a diverter housing; 11. a stopping step; 12. a groove; 121. an extreme position wall; 122. a limiting wall; 2. a rack; 3. a limiting block; 31. a protrusion; 4. a spring; 41. a ring body; 42. the separation means.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the utility model discloses a steering gear, including steering gear casing 1, rack 2, stopper 3 and spring 4, rack 2 wears to locate steering gear casing 1, rack 2 is connected with striking structure (not shown in the figure), just the inner wall of steering gear casing 1 is provided with backstop step 11, stopper 3 is located in steering gear casing 1, just stopper 3 is used for the cover to locate on rack 2, spring 4 set up in stopper 3 with between the backstop step 11, rack 2 is used for driving striking structure and removes and the striking stopper 3.
In this embodiment, this steering gear can set up in vehicle steering system's left drag link department, along with rack 2 drives striking structure and removes towards striking stopper 3's direction, the wheel is to the left turn gradually, when striking structure that rack 2 connects strikes stopper 3, can drive stopper 3 and remove towards backstop step 11, in order to compress spring 4 in backstop step 11 department, when stopper 3 can't continue to move towards backstop step 11, rack 2 also removes to the extreme position that drives the wheel and turn left, the wheel turns left to left extreme position, when rack 2 moves this extreme position, absorb the striking energy through the compression of spring 4, eliminate the striking noise.
Certainly, another steering gear can be symmetrically arranged at a right tie rod of a vehicle steering system, the steering gear at the right tie rod is symmetrically arranged with the steering gear at the left tie rod, a rack 2 in the steering gear at the right tie rod drives an impact structure to move towards a direction of a limit block 3, wheels gradually rotate rightwards, when the impact structure connected with the rack 2 impacts the limit block 3, the limit block 3 is driven to move towards a stop step 11 so as to compress a spring 4 at the stop step 11, when the limit block 3 cannot continuously move towards the stop step 11, the rack 2 also moves to a limit position for driving the wheels to turn rightwards, the wheels turn rightwards to the right limit position, and when the rack 2 moves to the limit position, the impact energy is absorbed through the compression of the spring 4, and the impact noise is eliminated; in this steering gear permanent use, in addition, because spring 4 can choose for use general steel, it is long-lived, difficult ageing, can guarantee that this steering gear's life is more permanent, reduce with the car cost and guarantee to drive the impression.
The impact structure may be an inner ball head assembly (not shown in the figure) connected to the end of the rack 2 in the conventional steering gear, or an impact structure (for example, a convex ring is arranged on the rack 2 as the impact structure) may be arranged on the rack 2 itself, and the limit block 3 is impacted by the impact structure.
When the stopper 3 moves to a stop toward the stopping step 11, the stopper 3 may be stopped by the spring 4 being completely compressed.
Optionally, the steering gear further comprises a sealing structure, the steering gear housing 1 is filled with grease, and the sealing structure is used for sealing the grease in the steering gear housing 1.
In this embodiment, the service life of the spring 4 can be further prolonged under the protection of grease in the steering gear housing 1, and the service life of the spring can be the same as that of the whole vehicle. The seal structure can prevent leakage of grease inside the steering gear housing 1.
Optionally, a limiting structure is arranged on the inner wall of the steering gear housing 1, and the limiting structure is used for limiting the movement range of the limiting block 3 relative to the steering gear housing 1.
In this embodiment, the inner wall of steering gear casing 1 sets up limit structure, and stopper 3 can only carry out the removal of a minizone under this limit structure's spacing, prevents that stopper 3 from taking place the large distance in steering gear casing 1 and removing and deviate from steering gear casing 1.
Referring to fig. 1, optionally, the limiting structure is a groove 12 disposed on an inner wall of the steering gear housing 1, a protrusion 31 is disposed on the limiting block 3, the protrusion 31 is disposed in the groove 12, and a length of the protrusion 31 is smaller than a length of the groove 12 in a moving direction of the rack 2.
In this embodiment, limit structure is the recess 12 that sets up at steering gear casing 1 inner wall, does not occupy steering gear casing 1 inner space, also can not block the striking structure striking stopper 3's that rack 2 connects action.
In the present embodiment, the length of the protrusion 31 is smaller than the length of the groove 12 in the moving direction of the rack 2, so that the protrusion 31 can move in the groove 12 to a small extent, and the requirement of the impact spring 4 is satisfied.
Referring to fig. 1, alternatively, in the moving direction of the rack 2, the side walls at the two ends of the groove 12 are a limit position wall 121 and a limit position wall 122, respectively;
the rack 2 is used for driving the impact structure to impact the limiting block 3 until the limiting block 3 abuts against the extreme position wall 121;
when the stop block 3 abuts against the extreme position wall 121, the spring 4 is in a compressed state;
when the spring 4 returns to the natural state, the stopper 3 is in a state of abutting against the stopper wall 122.
In this embodiment, two side walls of the groove 12 in the moving direction of the rack 2 are respectively marked as a limit position wall 121 and a limit position wall 122, when the impact structure connected with the rack 2 impacts the limit position 3 to drive the limit position 3 to move to the limit position wall 121, the limit position 3 cannot move any more, the rack 2 reaches the limit position at this time, the wheel reaches the limit of turning left or turning right, and when the limit position 3 moves to the abutting limit position wall 121, the spring 4 is already in a compressed state, which indicates that the spring 4 has absorbed the energy of the rack 2 impacting the limit position 3, and eliminates the impact abnormal sound. When the rack 2 moves in the reverse direction (the direction opposite to the arrow direction in fig. 1), the spring 4 drives the stopper 3 to move toward the stopper wall 122 to gradually return to the natural state.
Optionally, the spring 4 is a diaphragm spring or a wave spring sleeved on the rack 2.
In this embodiment, the spring 4 is a diaphragm spring or a wave spring, and does not occupy more axial space of the steering gear housing 1. Of course, the spring 4 may also be a cylindrical spring.
Wherein the steering gear housing 1 axial direction refers to a direction parallel to the moving direction of the rack 2.
Referring to fig. 1, optionally, the diaphragm spring includes a ring main body 41 and a plurality of separating fingers 42, the separating fingers 42 are arranged around an inner ring of the ring main body 41, the separating fingers 42 and the ring main body 41 form an included angle, a plate surface of the ring main body 41 is used for abutting against the stopping step 11, and one end of the separating fingers 42, which is far away from the ring main body 41, is used for abutting against the limiting block 3.
In this embodiment, the ring main body 41 is a plate-shaped ring structure, the plate surface thereof abuts against the stopping step 11, the end of the separating finger 42 abuts against the limiting block 3, the separating finger 42 is disposed at an included angle with the plate surface where the ring main body 41 is located in a natural state, and when being extruded by the limiting block 3, the separating finger 42 gradually tends to be flush with the ring main body 41.
Alternatively, in the radial direction of the ring main body 41, an outer ring of the ring main body 41 abuts against an inner wall of the steering gear housing 1.
In this embodiment, the outer ring of the ring main body 41 abuts against the inner wall of the steering gear housing 1, so that the diaphragm spring is ensured not to move in the radial direction, and not to interfere with the movement of the rack 2.
Of course, if the spring 4 is a wave spring, the peaks of the wave spring are in contact with the inner wall of the steering gear housing 1, and do not interfere with the movement of the rack 2.
Another embodiment of the present invention further provides a steering system, including the steering gear as described above.
The technical improvements and advantageous effects of the steering system are the same as those of the steering gear, and thus a detailed description thereof will not be given.
Yet another embodiment of the present invention provides a vehicle including the steering system as described above.
The technical improvements and advantageous effects of the vehicle are the same as those of the steering system, and thus, a detailed description of the vehicle will not be given.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.
Claims (10)
1. The utility model provides a steering gear, its characterized in that, includes steering gear casing (1), rack (2), stopper (3) and spring (4), wear to locate steering gear casing (1) rack (2), rack (2) are connected with the striking structure, just the inner wall of steering gear casing (1) is provided with backstop step (11), stopper (3) are located in steering gear casing (1), just stopper (3) are used for the cover to locate on rack (2), spring (4) set up in stopper (3) with between the backstop step (11), rack (2) are used for driving the striking structure removes and strikes stopper (3).
2. The steering gear according to claim 1, characterized in that the inner wall of the steering gear housing (1) is provided with a limiting structure for limiting the movement range of the limiting block (3) relative to the steering gear housing (1).
3. The steering gear according to claim 2, characterized in that the limiting structure is a groove (12) arranged on the inner wall of the steering gear housing (1), the limiting block (3) is provided with a protrusion (31), the protrusion (31) is arranged in the groove (12), and the length of the protrusion (31) is smaller than the length of the groove (12) in the moving direction of the rack (2).
4. The steering gear according to claim 3, characterized in that, in the direction of movement of the rack (2), the side walls of the two ends of the groove (12) are respectively a limit position wall (121) and a limit position wall (122);
the rack (2) is used for driving the impact structure to impact the limiting block (3) until the limiting block (3) abuts against the limiting position wall (121);
when the stop block (3) abuts against the extreme position wall (121), the spring (4) is in a compressed state;
when the spring (4) returns to the natural state, the limiting block (3) is in a state of abutting against the limiting wall (122).
5. Diverter according to claim 1, characterized in that the spring (4) is a diaphragm spring, a cylindrical spring or a wave spring.
6. The steering gear according to claim 5, characterized in that the diaphragm spring comprises a ring body (41) and a plurality of separating fingers (42), the plurality of separating fingers (42) are arranged around an inner ring of the ring body (41), the separating fingers (42) and the ring body (41) are arranged at an included angle, a plate surface of the ring body (41) is used for abutting against the stopping step (11), and one end of the plurality of separating fingers (42) far away from the ring body (41) is used for abutting against the limiting block (3).
7. The steering gear according to claim 6, characterized in that, in the radial direction of the ring main body (41), the outer ring of the ring main body (41) abuts against the inner wall of the steering gear housing (1).
8. The diverter according to claim 1, further comprising a sealing structure inside the diverter housing (1) for filling with grease, the sealing structure being for sealing the grease inside the diverter housing (1).
9. A steering system comprising a steering gear according to any one of claims 1 to 8.
10. A vehicle characterized by comprising the steering system according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223124595.0U CN218662010U (en) | 2022-11-23 | 2022-11-23 | Steering gear, steering system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223124595.0U CN218662010U (en) | 2022-11-23 | 2022-11-23 | Steering gear, steering system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218662010U true CN218662010U (en) | 2023-03-21 |
Family
ID=85539687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223124595.0U Active CN218662010U (en) | 2022-11-23 | 2022-11-23 | Steering gear, steering system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218662010U (en) |
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2022
- 2022-11-23 CN CN202223124595.0U patent/CN218662010U/en active Active
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