Displacement detection device and sliding piece thereof, steering gear assembly, steering gear and vehicle

Abstract

The utility model relates to a displacement detection device, a sliding part thereof, a steering gear assembly, a steering gear and a vehicle. The sliding piece comprises a main body, and a mounting hole is formed in the first end of the main body. And the mounting hole is closed along the circumferential direction of the main body. A connecting piece of the steering gear assembly is inserted into the mounting hole. The sliding piece provided by the utility model has high structural strength, and when the displacement detection device provided with the sliding piece is connected with the transmission part through the connecting piece, a stable and reliable sliding effect can be achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicles, and in particular to a displacement detection device and a sliding member thereof, a steering gear assembly, a steering gear and a vehicle. Background Art

[0002] The rear-wheel steering function is achieved by driving the rear wheels to deflect through the rear-wheel steering gear, and the rear-wheel steering gear usually needs to detect the linear displacement of the drive shaft in the rear-wheel steering gear to calculate the deflection angle of the rear wheels and then determine the steering angle of the rear wheels.

[0003] The current displacement detection device is usually implemented by using a sensor to detect the linear displacement of the transmission shaft. Correspondingly, the displacement detection device also includes a sliding member provided with a sensing part, and a connecting member for connecting the sliding member and the transmission shaft. When in use, the transmission shaft itself moves axially, driving the connecting member and the sliding member to move in the axial direction of the transmission shaft. At this time, the sensing part on the sliding member will move in the axial direction of the transmission shaft relative to the sensor. The sensor can determine the displacement of the transmission shaft in its own axial direction by detecting the position change of the sensing part in certain time periods, and then determine the steering angle of the rear wheels.

[0004] The existing sliding member includes two symmetrical halves. When the sliding member is assembled with the connecting member, the two halves are snapped onto one end of the connecting member and locked to the connecting member through a locking member. However, after long-term use of the displacement detection device, friction between the two halves of the split sliding member may loosen, which may lead to an unstable connection between the sliding member and the connecting member. The sliding member may then cause the sensing part to shake in directions other than the axial direction of the transmission shaft, which may eventually affect the detection accuracy of the displacement detection device. Utility Model Content

[0005] The purpose of the present disclosure is to provide a displacement detection device and its sliding part, steering gear assembly, steering gear and vehicle, so as to improve the structural strength of the sliding part and improve the detection accuracy of the displacement detection device equipped with the sliding part, so as to at least partially solve the related technical problems.

[0006] In order to achieve the above-mentioned purpose, according to the first aspect of the present disclosure, a sliding member of a displacement detection device is provided, wherein the sliding member comprises a main body, a mounting hole is formed on a first end of the main body, the mounting hole is closed along the circumferential direction of the main body, and the mounting hole is used for inserting a connecting member of a steering gear assembly.

[0007] Optionally, reinforcing ribs are provided on the circumferential outer wall of the main body.

[0008] Optionally, the reinforcing rib extends in a direction parallel to or inclined to an extension direction of the mounting hole.

[0009] Optionally, a sliding portion is provided on the main body, and the reinforcing rib is connected to the sliding portion.

[0010] Optionally, a limiting portion is provided on the main body, the limiting portion includes a limiting surface, and an oil storage hole is provided on the limiting surface.

[0011] According to a second aspect of the present disclosure, a displacement detection device is provided. The displacement detection device comprises a detection member and the above-mentioned sliding member; the main body further has a second end opposite to the first end, and the sliding portion is formed or arranged on the second end; a sliding groove cooperating with the sliding portion is formed on one side of the detection member close to the second end, and the sliding portion can slide along the direction of the sliding groove.

[0012] According to a third aspect of the present disclosure, a steering gear assembly is provided. The steering gear assembly includes a transmission part, a connecting member, and the displacement detection device described above, wherein the transmission part and the displacement detection device are connected via a connecting member, and the connecting member includes a third end and a fourth end opposite to each other, wherein the third end cooperates with the mounting hole, and the fourth end cooperates with the connection hole on the outer peripheral wall of the transmission part.

[0013] Optionally, the connecting hole has an opening for inserting the connecting member;

[0014] The connecting hole includes a first section and a second section connected in sequence from the opening, the inner diameter of the first section is larger than the inner diameter of the second section, so as to form a shoulder at the connection between the first section and the second section; the fourth end of the connecting piece includes a first connecting portion for inserting the second section, and a stopping portion for inserting the first section and stopping at the shoulder.

[0015] According to a fourth aspect of the present disclosure, a steering gear is provided, which includes the steering gear assembly described above.

[0016] According to a fifth aspect of the present disclosure, a vehicle is provided, comprising the steering gear described above.

[0017] Through the above technical solution, a sliding member of a displacement detection device, a displacement detection device, a steering gear assembly, a steering gear and a vehicle are provided. The sliding member includes a main body, a mounting hole is formed on the first end of the main body, and the mounting hole is closed along the circumferential direction of the main body. The way in which the mounting hole of the sliding member provided by the present invention is formed is different from the split-type design in the related art, but adopts an integral molding method. The integrally molded sliding member avoids the problem of unstable connection or failure with the connecting member after long-term use of the split-type sliding member in the related art. The sliding member formed by the integral molding method has a relatively high structural strength and is easy to process and manufacture;

[0018] Furthermore, the sliding part formed or arranged on the second end of the sliding part can guide the moving direction of the sliding part relative to the detection part of the displacement detection device. The arrangement of the sliding part can form a certain restriction effect on the movement of the sliding part along the axial direction of the transmission part of the steering gear assembly, so that the detection part can accurately detect the position change of the sliding part and / or the transmission part;

[0019] Furthermore, when the displacement detection device equipped with the sliding member is connected to the transmission part through the connecting member, the sliding member can always follow the transmission part of the steering gear assembly to move along the axial direction of the transmission part, and the reliability of use is high;

[0020] Furthermore, the steering gear provided with the steering gear assembly can have higher use accuracy, and the use reliability of the steering gear is effectively improved;

[0021] Furthermore, a vehicle equipped with the steering gear can have relatively excellent handling performance and riding experience.

[0022] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0024] Figure 1 is a schematic diagram of assembling a displacement detection device according to an embodiment of the present disclosure;

[0025] Figure 2 is an exploded schematic diagram of a displacement detection device provided according to an embodiment of the present disclosure;

[0026] Figure 3 is a schematic structural diagram of a sliding member provided according to an embodiment of the present disclosure;

[0027] Figure 4 is a schematic diagram of assembling a detection member and a sliding member according to an embodiment of the present disclosure;

[0028] Figure 5 is a schematic structural diagram of a connector provided according to an embodiment of the present disclosure;

[0029] Figure 6 is a cross-section of a displacement detection device provided according to an embodiment of the present disclosure Figure 1 ;

[0030] Figure 7 is a cross-section of a displacement detection device provided according to an embodiment of the present disclosure Figure 2 .

[0031] Description of Reference Numerals

[0032] 100. displacement detection device; 1. detection member; 111. slide groove; 2. sensing part; 3. sliding member; 31. main body; 311. first end; 312. second end; 32. sliding part; 321. slide plate; 321a. mounting groove; 322. slide rail; 33. mounting hole; 34. reinforcing rib; 35. limiting part; 351. limiting surface; 36. oil storage hole; 37. limiting groove; 4. connecting member; 41. first connecting part; 42. stopper; 43. second connecting part; 431. first annular groove; 432. second annular groove; 433. sealing ring; 434. mounting part; 44. third end; 45. fourth end; 5. transmission part; 51. connecting hole; 511. opening; 511a. first section; 511b. second section; 511c. shoulder; 6. shell; 61. accommodating channel; 62. guiding channel. DETAILED DESCRIPTION

[0033] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0034] In the present disclosure, unless otherwise stated, the directional words used, such as "inside" and "outside", refer to the outline of the corresponding parts themselves. In addition, the terms "first" and "second" used in the present disclosure are to distinguish one element from another element and do not have order and importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0035] According to the first aspect of the present disclosure, Figure 1 , Figure 2 and Figure 3 As shown, a sliding member 3 of a displacement detection device 100 is provided. The sliding member 3 may include a main body 31. A mounting hole 33 is formed on the first end 311 of the main body 31. The mounting hole 33 is closed along the circumferential direction of the main body 31. The mounting hole 33 is used for the insertion of a connector 4 of a steering gear assembly (which will be described in detail below). The way in which the mounting hole 33 is formed in the sliding member 3 provided in the present invention is different from the split-type design in the related art, but adopts an integral molding method. The integrally molded sliding member 3 avoids the problem of unstable or failed connection with the connector of the split-type sliding member in the related art after long-term use. The sliding member 3 formed by the integral molding method has a relatively high structural strength and is easy to process and manufacture.

[0036] In some embodiments, the sliding member 3 can be made of plastic, metal or other materials. Plastic materials are light in weight and low in cost; metal materials have good wear resistance and long service life. There is no limitation on the material of the sliding member 3, and those skilled in the art can select it according to actual conditions.

[0037] In some embodiments, Figure 3 As shown, a reinforcing rib 34 is provided on the circumferential outer wall of the main body 31. The provision of the reinforcing rib 34 can effectively improve the structural strength of the sliding member 3. In a specific application scenario, the reinforcing rib 34 may include at least one protruding structure protruding from the outer wall of the main body 31. Of course, the reinforcing rib 34 may also be other structural forms, which are not limited here, and those skilled in the art may design according to actual conditions.

[0038] In some embodiments, Figure 3 As shown, the reinforcing rib 34 extends in a direction parallel to or inclined to the extending direction of the mounting hole 33. Such an arrangement is reasonable and reliable, and has a good reinforcing effect on the sliding member 3.

[0039] In some embodiments, Figure 3 As shown, a limiting portion 35 is provided on the main body 31. The limiting portion 35 includes a limiting surface 351. An oil storage hole 36 is provided on the limiting surface 351. The oil storage hole 36 can store lubricating oil, which is convenient for installing the sliding member 3 and reducing the friction coefficient between the sliding member 3 and the housing 6 of the steering gear (this component will be described in detail below).

[0040] According to a second aspect of the present disclosure, Figure 1 and Figure 2 As shown, a displacement detection device 100 is provided. The displacement detection device 100 may include a detection member 1 and the sliding member 3 provided above. Correspondingly, the main body 31 of the sliding member 3 mentioned above also has a second end 312 opposite to the first end 311. The sliding portion 32 mentioned above is formed or arranged on the second end 312. A slide groove 111 cooperating with the sliding portion 32 is formed on one side of the detection member 1 close to the second end 312. The sliding portion 32 can slide along the direction of the slide groove 111.

[0041] The sliding portion 32 formed or arranged on the second end 312 of the sliding member 3 can guide the movement direction of the sliding member 3 relative to the detection member 1 of the displacement detection device 100. The arrangement of the sliding portion 32 can form a certain restriction effect on the movement of the sliding member 3 along the axial direction of the transmission part 5 of the steering gear assembly, so that the detection member 1 can accurately detect the position change of the sliding member 3 and / or the transmission part 5. Among them, the detection member 1 can be a sensor.

[0042] In some embodiments, Figure 3As shown, the reinforcing rib 34 mentioned above is connected to the sliding part 32. The reinforcing rib 34 is arranged between the main body 31 and the sliding part 32 in a reasonable manner and can play a good reinforcing role.

[0043] In a specific embodiment, Figure 3 As shown, the sliding part 32 mentioned above is formed on the second end 312. For example, the sliding part 32 may include a slide plate 321 protruding from the outer wall of the main body 31 in a direction perpendicular to the extension direction of the mounting hole 33. The two sides of the slide plate 321 opposite to the extension direction of the mounting hole 33 form a slide rail 322 that is slidably connected to the slide groove 111 of the detection member 1. The setting of the slide plate 321 can, on the one hand, form a certain reinforcement effect on the structure of the main body 31 of the sliding member 3, and on the other hand, the slide plate 321 can guide the sliding member 3 to always move along the axial direction of the transmission part 5 of the sensor assembly to avoid shaking in directions other than the axial direction of the transmission part 5. Correspondingly, the reinforcing rib 34 can be connected between the main body 31 and the slide plate 321. It can be understood that the sliding part 32 mentioned above can also be provided on the second end 312. There is no restriction on the composition of the sliding part 32, and those skilled in the art can design it according to actual conditions. However, it should be noted that the way in which the sliding part 32 is formed at the second end 312 can achieve the integrated forming of the sliding part 32, the main body 31 and the mounting hole 33 compared to the way in which the sliding part 32 is set at the second end 312, which is beneficial to providing the structural strength of the sliding part 3.

[0044] In some embodiments, Figure 3 As shown, the sliding portion 32 may include a slide plate 321 protruding from the outer wall of the main body 31 in a direction perpendicular to the extension direction of the mounting hole 33. The slide plate 321 has two opposite sides with respect to the extension direction of the mounting hole 33, and a slide rail 322 is formed to be slidably connected to the detection member 1. A limiting groove 37 may be formed between the slide rail 322 and the limiting portion 35 on the same side of the main body 31. Figure 6 It can be seen that after the sliding member 3 and the detection member 1 are assembled, the sliding rail 322 of the sliding member 3 can slide with the sliding groove 111 formed at the bottom of the detection member 1, and further, the sliding groove 111 of the detection member 1 can be plugged with the limiting groove 37 formed between the sliding rail 322 of the sliding member 3 and the limiting portion 35. The design of the limiting groove 37 on the sliding member 3 effectively improves the reliability of the sliding connection between the sliding member 3 and the detection member 1, and avoids the movement of the sliding member 3 relative to the detection member 1 along the radial direction of the transmission portion 5.

[0045] It should be noted here that the sliding mode between the sliding part 32 of the sliding member 3 and the detection member 1 can be through the sliding rail 322 and the sliding groove 111, or through the sliding rail and the sliding sleeve, etc. There is no limitation here, and technicians in this field can choose according to actual conditions.

[0046] In some embodiments, Figure 7 As shown, the displacement detection device 100 may also include a sensing part 2. The sensing part 2 is connected to the sliding part 32 of the sliding member 3. The detection member 1 is used to detect the position of the sensing part 2. The sensing part 2 is arranged on the sliding part 32 of the sliding member 3 that is closest to the detection member 1. Such an arrangement enables the detection member 1 to accurately and reliably detect the position of the sensing part 2. In order to further reduce the structural dimensions of the displacement detection device 100 in the height direction and to avoid wear of the sensing part 2, as shown in FIG. Figure 3 and Figure 7 As shown, a mounting groove 321a may be provided on the sliding portion 32 of the sliding member 3, and the sensing portion 2 may be provided in the mounting groove 321a. Accordingly, the sensing portion may be constructed as a sheet-like structure.

[0047] It is worth noting that, regarding the arrangement of the sensing portion 2, the sensing portion 2 can also be directly embedded in the sliding portion 32 of the sliding member 3, or at least a part of the structure of the sliding portion 32 of the sliding member 3 can form the sensing portion 2, that is, the structure of the sliding member 3 itself can be used for detection by the detection member 1. Regarding the arrangement of the sensing portion 2, those skilled in the art can adjust it according to actual conditions, and no limitation is made here.

[0048] According to the third aspect of the present disclosure, Figure 1 , Figure 2 and Figure 3 As shown, a steering gear assembly is provided. The steering gear assembly may include a transmission part 5, a connecting member 4 and the displacement detection device 100 mentioned above. The transmission part 5 is connected to the displacement detection device 100 via the connecting member 4. The connecting member 4 includes a third end 44 and a fourth end 45 opposite to each other. The third end 44 cooperates with the mounting hole 33. The fourth end 45 cooperates with the connecting hole 51 on the outer peripheral wall of the transmission part 5. When the displacement detection device 100 equipped with the sliding member 3 is connected to the transmission part 5 via the connecting member 4, the sliding member 3 can always follow the transmission part 5 of the steering gear assembly to move along the axial direction of the transmission part 5, and the reliability of use is high. Optionally, as Figure 6 As shown, the transmission part 5 may include a transmission shaft configured as a lead screw. A connecting hole 51 is provided on the transmission shaft. The connecting hole 51 may be a through hole or a blind hole. The cross section of the connecting hole 51 may be circular or polygonal. When the connecting hole 51 is circular, it may be a screw hole.

[0049] In some embodiments, the connection hole 51 has an opening 511 for inserting the connection member 4. The connection hole 51 includes a first section 511a and a second section 511b connected in sequence from the opening 511. The inner diameter of the first section 511a is greater than the inner diameter of the second section 511b, so that a shoulder 511c is formed at the connection between the first section 511a and the second section 511b. Figure 5As shown, the fourth end 45 of the connector 4 may include a first connector 41 for inserting into the second section 511b and a stopper 42 for inserting into the first section 511a and stopping at the shoulder 511c. The setting of the shoulder 511c in the connecting hole 51 and the setting of the stopper 42 in the connector 4 can reliably limit the depth of the connector 4 extending into the connecting hole 51, and can enhance the reliability of the connection between the connector 4 and the transmission shaft. It is also worth noting that the connection between the first connector 41 of the connector 4 and the transmission shaft can be a threaded connection, that is, when the connecting hole 51 is a screw hole, the first connector 41 can be a stud. Further, the connector 4 can also include a second connector 43 for inserting into the mounting hole 33 of the sliding member 3. The connection between the second connector 43 of the connector 4 and the sliding member 3 can be that a plurality of sealing rings 433 are arranged at intervals on the second connector 43 of the connector 4. The plurality of sealing rings 433 are sleeved on the outer periphery of the connector 4. During assembly, the second connection portion 43 of the connector 4 extends into the mounting hole 33 of the sliding member 3, and the sealing ring 433 abuts against the inner wall of the mounting hole 33. The installation accuracy is easy to control, and the sealing ring 433 can be elastically deformed to firmly fix the connector 4 and the sliding member 3. Optionally, the number of sealing rings 433 can be 2, 3, 4, etc., such as Figure 2 , an embodiment in which the number of sealing rings 433 is 2 is shown. The sealing ring 433 is made of elastic material, will deform to a certain extent when subjected to pressure, and has the ability to restore to its original state. Arranging multiple spaced sealing rings 433 on the connecting member 4, compared with a single sealing ring 433, can provide multiple supporting points between the connecting member 4 and the sliding member 3, and the supporting force is centered, thereby avoiding the situation in which the sliding member 3 deflects due to the non-centered supporting force of a single sealing ring 433.

[0050] By opening a connecting hole 51 on the transmission shaft, the first connecting part 41 of the connecting member 4 is matched and connected to the connecting hole 51, and the second connecting part 43 of the connecting member 4 is sleeved with multiple sealing rings 433 and extends into the mounting hole 33 of the sliding member 3. The assembly is simple and the installation accuracy is easy to control.

[0051] In some embodiments, Figure 2 and Figure 5 As shown, a first annular groove 431 and a second annular groove 432 are provided in the axial direction of the second connecting portion 43 of the connecting member 4. The first annular groove 431 and the second annular groove 432 both extend along the circumference of the second connecting portion 43. The first annular groove 431 and the second annular groove 432 each accommodate a sealing ring 433. By providing the first annular groove 431 and the second annular groove 432, the sealing ring 433 can be accommodated, and the sealing ring 433 is prevented from moving in the axial direction of the second connecting portion 43, so as to better play the role of installation and fixing.

[0052] In some embodiments, Figure 5 and Figure 7 As shown, the end surface of the second connecting portion 43 facing away from the stopper portion 42 is further provided with a mounting portion 434 for mounting. The mounting portion 434 can be a mounting groove 321a, a mounting protrusion, etc., specifically a hexagonal groove, a cross groove, a slot, a hexagonal protrusion, etc., without limitation, and the mounting portion 434 can be matched with tools such as a screwdriver and a wrench to match and connect the connector 4 with the connecting hole 51 to fix it.

[0053] According to a fourth aspect of the present disclosure, a steering gear is provided. The steering gear includes the steering gear assembly mentioned above. The steering gear is used to drive the front wheels or rear wheels of a vehicle to steer. The specific structure is not limited, and those skilled in the art can design and select according to actual conditions. The steering gear equipped with the steering gear assembly can accurately determine the steering angle of the front wheels or rear wheels of the vehicle, and has high reliability in use.

[0054] In some embodiments, Figure 6 and Figure 7 As shown, the steering gear may further include a housing 6. The structure of the housing 6 is not limited. The housing 6 is used to be fixed to the body of the vehicle and is used as a mounting base for other structures.

[0055] In a specific embodiment, Figure 6 and Figure 7 As shown, the housing 6 has an accommodating channel 61 for the transmission part 5 to move and a guide channel 62 connected to the accommodating channel 61. The accommodating channel 61 of the housing 6 can play a certain limiting role in the movement of the transmission part 5. In a specific application scenario, the sliding member 3 mentioned above is at least partially located in the guide channel 62.

[0056] In another specific embodiment, Figure 4 and Figure 6 As shown, the housing 6 has a receiving channel 61 for the transmission part 5 to move and a guide channel 62 connected to the receiving channel 61. The receiving channel 61 of the housing 6 can play a certain limiting role in the movement of the transmission part 5. In a specific application scenario, the sliding member 3 mentioned above is located in the guide channel 62. The detection member 1 is at least partially located in the housing 6. The end of the detection member 1 located in the housing 6 is provided with a slide groove 111 that slides with the sliding part 32. Correspondingly, the sliding part 32 of the sliding member 3 may include a slide rail 322. The sliding connection mode of the slide groove 111 and the slide rail 322 is simple and reliable. The sliding connection structure formed by the slide groove 111 and the slide rail 322 arranged between the sliding member 3 and the detection member 1 further improves the sliding reliability of the sliding member 3, and ensures that the sliding member 3 can be reliably moved along the axial direction of the transmission part 5.

[0057] It can be understood that the sliding structure here can be arranged between the sliding member 3 and the detection member 1, or between the sliding member 3 and the shell 6, or a sliding connection structure can be arranged between the sliding member 3 and the shell 6 and between the sliding member 3 and the detection member 1. There is no limitation here, and technical personnel in this field can make design adjustments according to actual conditions.

[0058] In some embodiments, the above-mentioned limiting surface 351 of the sliding member 3 is slidably matched with the inner wall of the guide channel 62. Specifically, the limiting surface 351 can be formed on the limiting portion 35 of the sliding member 3. The mutual cooperation between the transmission portion 5 and the accommodating channel 61 and the mutual cooperation between the sliding member 3 and the guide channel 62 can effectively improve the use accuracy and reliability of the steering gear.

[0059] According to the fifth embodiment of the present disclosure, a vehicle is provided. The vehicle includes the steering gear mentioned above. The vehicle provided with the steering gear can have relatively excellent handling performance and riding experience. The vehicle can be a sedan, an off-road vehicle, a commercial vehicle, an industrial vehicle, etc., which is not limited here, and those skilled in the art can adjust and replace according to actual conditions.

[0060] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0061] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0062] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A sliding member of a displacement detection device, characterized in that: The sliding member is integrally formed and comprises a main body, a mounting hole is formed on a first end of the main body, the mounting hole is closed along the circumferential direction of the main body, and the mounting hole is used for inserting a connecting member of a steering gear assembly.

2. The sliding member according to claim 1, characterized in that Reinforcing ribs are arranged on the outer wall of the main body in the circumferential direction.

3. The sliding member according to claim 2, characterized in that: The reinforcing rib extends in a direction parallel to or inclined to an extending direction of the mounting hole.

4. The sliding member according to claim 2, characterized in that: The main body is provided with a sliding part, and the reinforcing rib is connected to the sliding part.

5. The sliding member according to claim 1, characterized in that: A limiting portion is arranged on the main body, the limiting portion comprises a limiting surface, and an oil storage hole is arranged on the limiting surface.

6. A displacement detection device, characterized in that: A detection member and a sliding member as claimed in any one of claims 1 to 5; The main body also has a second end opposite to the first end, and the sliding portion is formed or arranged on the second end; A sliding groove matched with the sliding part is formed on one side of the detection member close to the second end, and the sliding part can slide along the direction of the sliding groove.

7. A steering gear assembly, characterized in that: It includes a transmission part, a connecting member and the displacement detection device according to claim 6, the transmission part and the displacement detection device are connected through the connecting member, the connecting member includes a third end and a fourth end opposite to each other, the third end cooperates with the mounting hole, and the fourth end cooperates with the connection hole on the outer peripheral wall of the transmission part.

8. The steering gear assembly according to claim 7, characterized in that: The connecting hole has an opening for inserting the connecting piece; The connecting hole comprises a first section and a second section connected in sequence from the opening, the inner diameter of the first section is larger than the inner diameter of the second section, so as to form a shoulder at the connection between the first section and the second section; The fourth end of the connecting member includes a first connecting portion for inserting into the second section, and a stopping portion for inserting into the first section and stopping at the shoulder.

9. A steering gear, characterized in that: Comprising a diverter assembly as described in any one of claims 7-8.

10. A vehicle, characterized in that: Comprising a diverter as claimed in claim 9.

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