CN210531560U - Automobile steering gear - Google Patents
Automobile steering gear Download PDFInfo
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- CN210531560U CN210531560U CN201921653694.3U CN201921653694U CN210531560U CN 210531560 U CN210531560 U CN 210531560U CN 201921653694 U CN201921653694 U CN 201921653694U CN 210531560 U CN210531560 U CN 210531560U
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- steering gear
- shaft body
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- gear shaft
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Abstract
The utility model provides a car steering gear belongs to auto steering machine spare part technical field. The automobile steering gear solves the problems that the joint of the shaft body and the cylindrical connecting part is easy to deform under the influence of stress in the existing automobile steering gear, and the shaft body is not adjustable in transmission fit abrasion with other parts. The automobile steering gear comprises a gear body and a steering gear shaft body, wherein one end of the steering gear shaft body is axially inserted into a circular assembling groove of the gear body, the spline groove and a spline edge are axially matched and connected in a corresponding mode, and an adjusting device capable of enabling the steering gear shaft body to axially shift and adjust relative to the gear body is arranged between the steering gear shaft body and the gear body. Simple structure, ability dispersion gear body and steering gear axle body turn to stress, prevent both to turn to deformation, but axial adjustment avoids fit-up gap, convenient to use.
Description
Technical Field
The utility model belongs to the technical field of auto steering machine spare part, a auto steering gear is related to.
Background
The steering gear is one of important transmission parts in the automobile steering machine, and the assembly precision and the structural design of the steering gear influence the precision and the service life of the whole steering machine.
For example, Chinese patent numbers are: "201320330117.7" an automotive transmission steering gear axle, its concrete structure includes the axis body, the one end of axis body has the cylindricality connecting portion that sets up with the same central line of axis body, the diameter of this cylindricality connecting portion is greater than the diameter of axis body, has seted up the transmission helical tooth on the periphery wall of cylindricality connecting portion, has one at the one end of the cylindricality connecting portion that links to each other with the axis body and leans on the ring, the transmission helical tooth with lean on the ring and have the interval.
In foretell structure, this axis body and cylindricality connecting portion link to each other formula structure as an organic whole, the diameter of this cylindricality connecting portion is greater than the diameter of axis body, the junction between the axis body and the cylindricality connecting portion turns to stress concentration, when turning to power too big, the junction between the axis body and the cylindricality connecting portion receives stress's easy deformation of influence, this axis body and cylindricality connecting portion structure as an organic whole, it is unadjustable to cooperate wearing and tearing with other part transmission when the axis body, it is inconvenient to use, there is the clearance because wearing and tearing when cooperating with other parts, the noise that turns to the production, use comfort is low.
Disclosure of Invention
The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, can disperse gear body and steering gear axle body steering stress, prevent both to turn to the car steering gear of deformation.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides an automobile steering gear, is including being cylindric gear body and the steering gear axle body of being connected with gear body axial, its characterized in that, the terminal surface of wherein one end of gear body on be provided with circular assembly groove, the inner wall of circular assembly groove on circumference interval distribution have the spline arris that is the axial setting, the outer wall of one end of steering gear axle body on circumference interval distribution have the spline groove that is the axial setting, the circular assembly inslot of pegging graft at the gear body of one end axial of steering gear axle body and this spline groove and spline arris axial correspond the cooperation and connect, steering gear axle body and gear body between be provided with and enable the steering gear axle body for the adjusting device of gear body axial displacement.
This automobile steering gear mainly makes gear body and steering gear axle body components of a whole that can function independently, connects through spline arris, spline groove axial fit, decomposes the steering stress of both junctions, sets up adjusting device between steering gear axle body and gear body, and the purpose that sets up like this is when the steering gear axle body is wearing and tearing with other part transmission cooperation, but axial adjustment reassembling connection avoids assembly gap, convenient to use.
In the above-mentioned automobile steering gear, the adjusting device includes an adjusting cylindrical pin, an adjusting hole is provided on the end face of one end of the steering gear shaft body, an internal thread is provided on the inner wall of the adjusting hole, an external thread is provided on the outer wall of one end of the adjusting cylindrical pin, the adjusting cylindrical pin is screwed on the internal thread of the adjusting hole of the steering gear shaft body through the external thread, a circular guide groove is provided at the bottom of the circular assembling groove of the gear body opposite to the adjusting cylindrical pin in the axial direction, the other end of the adjusting cylindrical pin is located in the groove of the circular guide groove and is abutted against and matched with the bottom of the circular guide groove, and an axial assembling buffer device for preventing the steering gear shaft body and the gear body from moving in the axial direction is further provided between the steering gear shaft body and the gear body. But steering gear axle body and regulation cylindric lock axial are adjusted, and it is convenient to adjust, can avoid steering gear axle body wearing and tearing and other parts to produce the clearance, convenient to use.
In the above-mentioned automobile steering gear, the axial assembly buffer device includes a compression spring, the compression spring is located in the circular assembly groove of the gear body and elastically acts on the steering gear shaft body, the compression spring is sleeved on the adjusting cylindrical pin, one end of the compression spring elastically abuts against the groove bottom of the circular assembly groove, and the other end elastically abuts against the steering gear shaft body. The purpose of setting up like this avoids gear body and steering gear axle body axial assembly to have the clearance, convenient to use.
In the above automobile steering gear, a pressing sleeve is further arranged between the steering gear shaft body and the gear body, a circular connecting portion is arranged on the end face of one end of the gear body, the circular assembling groove is located in the circular connecting portion, an external thread is arranged on the outer wall of the circular connecting portion, an internal thread is arranged on the inner wall of the pressing sleeve, and the internal thread of the pressing sleeve and the external thread of the circular connecting portion are fixed in a spiral mode to fixedly connect the steering gear shaft body and the gear body in the axial direction. When in actual use, the annular gasket can be increased or reduced between the pressing sleeve and the gear body according to the axial connecting gap, and the axial abutting between the pressing sleeve and the gear body is ensured.
In the automobile steering gear, the middle part of the pressing sleeve is provided with a conical clamping hole, the middle part of the steering gear shaft body is provided with a conical part, and the conical part of the steering gear shaft body is in axial corresponding clamping fit with the conical clamping hole of the pressing sleeve. The purpose of setting up like this is that convenient pressure cover and steering gear axle body axial correspond the cooperation.
In the above-mentioned automobile steering gear, the outer wall of the gear body is provided with a helical tooth section for meshing with the steering rack.
Compared with the prior art, the automobile steering gear has the advantages that: simple structure, ability dispersion gear body and steering gear axle body turn to stress, prevent both to turn to deformation, through setting up adjusting device, but the axial is adjusted when producing the fit clearance with other part transmission cooperation wearing and tearing to the steering gear axle body, avoids the fit clearance, reduces and turns to the noise, and use comfort is high, convenient to use.
Drawings
Fig. 1 is a front view of the steering gear of the present automobile.
Fig. 2 is a schematic sectional structure view of the steering gear of the automobile.
In the figure, 1, a gear body; 2. a steering gear shaft body; 3. spline edges; 4. adjusting the cylindrical pin; 5. an adjustment hole; 6. a circular guide groove; 7. a compression spring; 8. pressing the sleeve; 9. a circular connecting portion; 10. a tapered portion; 11. a helical tooth section.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the steering gear of the present invention mainly comprises a cylindrical gear body 1 and a steering gear shaft body 2 axially connected to the gear body 1, and the outer wall of the gear body 1 is provided with a helical gear section 11 for meshing with a steering rack. Be provided with circular assembly groove on the terminal surface of the wherein one end of gear body 1, circumference interval distribution has spline arris 3 that is the axial setting on the inner wall of circular assembly groove, circumference interval distribution has the spline groove that is the axial setting on the outer wall of the one end of steering gear shaft body 2, the one end axial of steering gear shaft body 2 is pegged graft in the circular assembly groove of gear body 1 and this spline groove and 3 axial of spline arris correspond the cooperation and are connected, be provided with between steering gear shaft body 2 and the gear body 1 and enable the adjusting device that the axial of steering gear shaft body 2 shifted the regulation for gear body 1.
In actual manufacturing, the specific implementation of the adjusting device is as follows: mainly constitute by adjusting cylindric lock 4, be provided with regulation hole 5 on the terminal surface of the one end of steering gear axle body 2, be provided with the internal thread on the inner wall of regulation hole 5, be provided with the external screw thread on the outer wall of the one end of adjusting cylindric lock 4, adjust cylindric lock 4 through external screw thread screwed connection on the internal thread of the regulation hole 5 of steering gear axle body 2, the tank bottom of the circular assembly groove of gear body 1 relative with adjusting 4 axial of cylindric lock is provided with circular guide way 6, the other end of adjusting cylindric lock 4 is in the inslot of circular guide way 6 and lean on the cooperation with the tank bottom of circular guide way 6, still be provided with the axial assembly buffer who prevents steering gear axle body 2 and gear body 1 axial float between steering gear axle body 2 and the gear body 1.
In actual manufacturing, the specific implementation mode of the axial assembly buffer device is as follows: mainly constitute by compression spring 7, compression spring 7 is in the circular assembly groove of gear body 1 and elastic action is in steering gear axle body 2, and compression spring 7 cover is located and is adjusted cylindric lock 4 and the one end elasticity of this compression spring 7 supports and lean on the tank bottom in circular assembly groove, and other end elasticity supports and leans on in steering gear axle body 2.
During actual manufacturing, the specific connecting structure for axially connecting the steering gear shaft body 2 and the gear body 1 is as follows: a pressing sleeve 8 is further arranged between the steering gear shaft body 2 and the gear body 1, a circular connecting portion 9 is arranged on the end face of one end of the gear body 1, a circular assembling groove is located in the circular connecting portion 9, an external thread is arranged on the outer wall of the circular connecting portion 9, an internal thread is arranged on the inner wall of the pressing sleeve 8, and the internal thread of the pressing sleeve 8 and the external thread of the circular connecting portion 9 are fixed in a spiral mode to fixedly connect the steering gear shaft body 2 and the gear body 1 axially; the middle part of pressing the cover 8 is provided with toper screens hole, and the middle part of steering gear axle body 2 has toper portion 10, and the toper portion 10 of steering gear axle body 2 corresponds the screens cooperation with the toper screens hole axial of pressing the cover 8.
Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. An automobile steering gear comprises a cylindrical gear body (1) and a steering gear shaft body (2) axially connected with the gear body (1), it is characterized in that the end surface of one end of the gear body (1) is provided with a circular assembling groove, spline ridges (3) which are axially arranged are circumferentially distributed on the inner wall of the circular assembling groove at intervals, spline grooves which are axially arranged are circumferentially distributed on the outer wall of one end of the steering gear shaft body (2) at intervals, one end of the steering gear shaft body (2) is axially inserted in the circular assembling groove of the gear body (1) and the spline groove is axially and correspondingly matched and connected with the spline ridge (3), an adjusting device which can enable the steering gear shaft body (2) to axially shift and adjust relative to the gear body (1) is arranged between the steering gear shaft body (2) and the gear body (1).
2. The automobile steering gear according to claim 1, characterized in that the adjusting device comprises an adjusting cylindrical pin (4), an adjusting hole (5) is formed in the end face of one end of the steering gear shaft body (2), an internal thread is formed in the inner wall of the adjusting hole (5), an external thread is formed in the outer wall of one end of the adjusting cylindrical pin (4), the adjusting cylindrical pin (4) is spirally connected to the internal thread of the adjusting hole (5) of the steering gear shaft body (2) through the external thread, a circular guide groove (6) is formed in the bottom of a circular assembling groove of the gear body (1) axially opposite to the adjusting cylindrical pin (4), the other end of the adjusting cylindrical pin (4) is located in the groove of the circular guide groove (6) and is abutted against and matched with the bottom of the circular guide groove (6), and a steering gear shaft for preventing steering is further arranged between the steering gear shaft body (2) and the gear shaft body (1) The shaft body (2) and the gear body (1) axially move to form an axial assembly buffer device.
3. The automobile steering gear according to claim 2, characterized in that the axial assembly buffer device comprises a compression spring (7), the compression spring (7) is arranged in a circular assembly groove of the gear body (1) and elastically acts on the steering gear shaft body (2), the compression spring (7) is sleeved on the adjusting cylindrical pin (4), one end of the compression spring (7) elastically abuts against the groove bottom of the circular assembly groove, and the other end elastically abuts against the steering gear shaft body (2).
4. The automobile steering gear according to claim 3, characterized in that a pressing sleeve (8) is further arranged between the steering gear shaft body (2) and the gear body (1), a circular connecting portion (9) is arranged on the end face of one end of the gear body (1), the circular assembling groove is located in the circular connecting portion (9), an external thread is arranged on the outer wall of the circular connecting portion (9), an internal thread is arranged on the inner wall of the pressing sleeve (8), and the internal thread of the pressing sleeve (8) and the external thread of the circular connecting portion (9) are fixed in a spiral mode to axially fixedly connect the steering gear shaft body (2) and the gear body (1).
5. The automobile steering gear according to claim 4, characterized in that the middle of the pressing sleeve (8) is provided with a tapered clamping hole, the middle of the steering gear shaft body (2) is provided with a tapered portion (10), and the tapered portion (10) of the steering gear shaft body (2) is axially and correspondingly clamped and matched with the tapered clamping hole of the pressing sleeve (8).
6. An automobile steering gear according to claim 1 or 5, characterized in that the outer wall of the gear body (1) is provided with a helical tooth section (11) for engaging with a steering rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921653694.3U CN210531560U (en) | 2019-09-30 | 2019-09-30 | Automobile steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921653694.3U CN210531560U (en) | 2019-09-30 | 2019-09-30 | Automobile steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210531560U true CN210531560U (en) | 2020-05-15 |
Family
ID=70607335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921653694.3U Active CN210531560U (en) | 2019-09-30 | 2019-09-30 | Automobile steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210531560U (en) |
-
2019
- 2019-09-30 CN CN201921653694.3U patent/CN210531560U/en active Active
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