CN213839453U - Steering nut structure with back support for electric circulating ball steering machine - Google Patents
Steering nut structure with back support for electric circulating ball steering machine Download PDFInfo
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- CN213839453U CN213839453U CN202022617785.0U CN202022617785U CN213839453U CN 213839453 U CN213839453 U CN 213839453U CN 202022617785 U CN202022617785 U CN 202022617785U CN 213839453 U CN213839453 U CN 213839453U
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Abstract
The utility model discloses a steering nut structure with a back support for an electric circulating ball steering machine, which comprises a rocker shaft, a screw rod, a steering nut and a shell; the screw rod is arranged in the shell, the right end of the shell is provided with an end cover, a thrust roller bearing is respectively arranged on a contact surface between the left end of the screw rod and the shell and a contact surface between the screw rod and the end cover, the steering nut is arranged on the screw rod, the rocker shaft is connected with the lower part of the steering nut, the upper part of the steering nut is provided with a supporting surface, an oil storage tank is arranged on the supporting surface, the supporting surface of the steering nut is in contact with the inner wall of the shell, the upper right corner of the shell is provided with an oil filling port, the oil filling port is provided with an oil plug, and a sealing ring is arranged on a connecting surface between the shell and the end cover; the produced radial load of rocking arm axle and steering nut meshing transmission is effectually resisted through the holding surface of steering nut, the utility model has the advantages of reasonable design, improve local lubrication, reduce wear.
Description
Technical Field
The utility model relates to an automobile steering technical field specifically is an electronic circulation ball steering gear is with steering nut structure of taking back to support.
Background
Under the great trend of EV and intelligent driving, the commercial vehicle has the EPS requirement, can solve the existing stubborn problems of large free gap, high speed drift and poor directivity of the traditional hydraulic power steering system, and supports advanced driving function expansion, such as expansion of LKA lane keeping, APA automatic parking, unmanned driving and the like. The EPS system is necessary to obtain "extra" functionality. However, due to the heavy truck-mounted and high torque requirement, high strength and reliability requirements are provided for mechanical execution components in the system.
The traditional structure adopts an assembly mode that angular contact thrust bearings are face to face, and the load generated by meshing transmission of a rocker arm shaft and a steering nut is borne by a screw rod raceway and is converted onto the bearings; the bending moment generated by meshing transmission generates serious damage load on the screw raceway, so a new structure is required to be designed to avoid the influence of the bending moment on the screw raceway.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to overcome current defect, provide an electronic circulation ball traversing mechanism with steering nut structure of taking back to support, structural design is reasonable, through the effectual produced radial load of rocking arm axle and the steering nut meshing transmission of resisting of the holding surface of steering nut, improves local lubrication, reduces unnecessary wearing and tearing, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a steering nut structure with a back support for an electric circulating ball steering machine comprises a rocker shaft, a screw rod, a steering nut and a shell; the screw rod is arranged in the shell, the end cover is arranged at the right end of the shell, thrust roller bearings are respectively arranged on the contact surface of the left end of the screw rod and the shell and the contact surface of the screw rod and the end cover, the steering nut is arranged on the screw rod, the rocker shaft is connected with the lower portion of the steering nut, the supporting surface is arranged on the upper portion of the steering nut, and an oil storage tank is arranged on the supporting surface.
Furthermore, the supporting surface of the steering nut is in contact with the inner wall of the shell, and the radial load generated by meshing transmission of the rocker arm shaft and the steering nut is effectively resisted through the supporting surface of the steering nut, so that the structure of the device is firmer.
Furthermore, the upper right corner of casing is provided with the oil filler hole, is provided with the oil plug on the oil filler hole, is convenient for refuel to the inside oil pocket of casing through the oil filler hole, be provided with the sealing washer on the face of being connected of casing and end cover, make the casing sealed effectual through the sealing washer, the end cover is provided with the oil blanket with the rotation axis junction, prevents the oil leak through the oil blanket.
Furthermore, the both sides of oil storage tank are provided with the recess, and four are no less than to the quantity of recess, improve local lubrication through the oil storage tank, reduce unnecessary wearing and tearing, prolong the life of this device.
Compared with the prior art, the beneficial effects of the utility model are that: this electronic circulation ball is steering nut structure of area back support for steering machine has following benefit:
the utility model discloses on set up steering nut, the produced radial load of rocking arm axle and steering nut meshing transmission is effectually resisted to the holding surface through steering nut, makes more firm of this device structure, improves the local lubrication of holding surface and casing contact surface through the oil storage tank, reduces unnecessary wearing and tearing, prolongs the life of this device, is convenient for refuel to the inside oil pocket of casing through the oil filler hole, and the sealing washer makes the casing sealed effectual, improves the ability that bears heavy load and vibration load of this device through thrust roller bearing, the utility model has the advantages of reasonable design, effectual radial load that offsets, improve local lubrication, reduce wear, make this device safe and reliable more.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 rocker shaft, 2 screw rods, 3 sealing rings, 4 end covers, 5 oil filling ports, 6 oil storage tanks, 7 supporting surfaces, 8 steering nuts, 9 thrust roller bearings and 10 shells.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Referring to fig. 1, the present invention provides a technical solution: a steering nut structure with a back support for an electric circulating ball steering machine comprises a rocker shaft 1, a screw rod 2, a steering nut 8 and a shell 10; the screw rod 2 is arranged in the shell 10, the right end of the shell 10 is provided with an end cover 4, the contact surface of the left end of the screw rod 2 and the shell 10 and the contact surface of the screw rod 2 and the end cover 4 are respectively provided with a thrust roller bearing 9, the capability of bearing heavy load and vibration load of the device is improved through the thrust roller bearing 9, the upper right corner of the shell 10 is provided with an oil filling port 5, an oil plug is arranged on the oil filling port 5, oil cavity in the shell 10 is convenient to fill oil through the oil filling port 5, the connecting surface of the shell 10 and the end cover 4 is provided with a sealing ring 3, the shell 10 has good sealing effect through the sealing ring 3, the connecting part of the end cover 4 and a rotating shaft is provided with an oil seal, oil leakage is prevented through the oil seal, a steering nut 8 is arranged on the screw rod 2, a rocker shaft 1 is connected with the lower part of the steering nut 8, the upper part of the steering nut 8 is provided with a supporting surface 7, the supporting surface 7 of the steering nut 8 is contacted with the inner wall of the shell 10, the produced radial load of rocking arm axle 1 and the 8 meshing transmissions of steering nut is effectively resisted through 7 effective resistance bearing surfaces of steering nut 8 for this device structure is more firm, is provided with oil storage tank 6 on the bearing surface 7, and the both sides of oil storage tank 6 are provided with the recess, and four are no less than to the quantity of recess, improves local lubrication through oil storage tank 6, reduces unnecessary wearing and tearing, prolongs the life of this device, the utility model has the advantages of reasonable design, effectual radial load that offsets improves local lubrication, and reducing wear makes this device safe and reliable more.
When in use: the radial load generated by meshing transmission of the rocker arm shaft 1 and the steering nut 8 is effectively resisted through the supporting surface 7 of the steering nut 8, the structure of the device is firmer, the local lubrication of the contact surface of the supporting surface 7 and the shell 10 is improved through the oil storage tank 6, unnecessary abrasion is reduced, the service life of the device is prolonged, oil can be conveniently filled into an oil cavity in the shell 10 through the oil filling port 5, the sealing ring 3 enables the shell 10 to be good in sealing effect, and the capacity of bearing heavy load and vibration load of the device is improved through the thrust roller bearing 9.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an electronic circulation ball traversing mechanism is with turning nut structure of taking back support, includes rocking arm axle (1), screw rod (2), steering nut (8) and casing (10), its characterized in that: the screw rod (2) is arranged in the shell (10), the end cover (4) is arranged at the right end of the shell (10), thrust roller bearings (9) are respectively arranged on the contact surface of the left end of the screw rod (2) and the shell (10) and the contact surface of the screw rod (2) and the end cover (4), the steering nut (8) is arranged on the screw rod (2), the rocker shaft (1) is connected with the lower portion of the steering nut (8), the supporting surface (7) is arranged on the upper portion of the steering nut (8), and an oil storage tank (6) is arranged on the supporting surface (7).
2. The steering nut structure with a back support for an electric recirculating ball steering gear according to claim 1, wherein: the support surface (7) of the steering nut (8) is in contact with the inner wall of the housing (10).
3. The steering nut structure with a back support for an electric recirculating ball steering gear according to claim 1, wherein: an oil filling port (5) is formed in the upper right corner of the shell (10), an oil plug is arranged on the oil filling port (5), a sealing ring (3) is arranged on the connecting surface of the shell (10) and the end cover (4), and an oil seal is arranged at the connecting position of the end cover (4) and the rotating shaft.
4. The steering nut structure with a back support for an electric recirculating ball steering gear according to claim 1, wherein: grooves are formed in two sides of the oil storage tank (6), and the number of the grooves is not less than four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022617785.0U CN213839453U (en) | 2020-11-12 | 2020-11-12 | Steering nut structure with back support for electric circulating ball steering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022617785.0U CN213839453U (en) | 2020-11-12 | 2020-11-12 | Steering nut structure with back support for electric circulating ball steering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213839453U true CN213839453U (en) | 2021-07-30 |
Family
ID=77015692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022617785.0U Active CN213839453U (en) | 2020-11-12 | 2020-11-12 | Steering nut structure with back support for electric circulating ball steering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213839453U (en) |
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2020
- 2020-11-12 CN CN202022617785.0U patent/CN213839453U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 2398 Muye Avenue, high tech Zone, Xinxiang City, Henan Province Patentee after: North Henan Steering System (Xinxiang) Co.,Ltd. Address before: 453000 No. 12, Heping Avenue (South), Hongqi District, Xinxiang City, Henan Province Patentee before: YUBEI STEERING SYSTEM (XINXIANG) CO.,LTD. |
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| CP03 | Change of name, title or address |