CN212685709U - Adjusting bolt and circulating ball hydraulic power steering gear - Google Patents
Adjusting bolt and circulating ball hydraulic power steering gear Download PDFInfo
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- CN212685709U CN212685709U CN202020701253.2U CN202020701253U CN212685709U CN 212685709 U CN212685709 U CN 212685709U CN 202020701253 U CN202020701253 U CN 202020701253U CN 212685709 U CN212685709 U CN 212685709U
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Abstract
The application discloses adjusting bolt and recirculating ball hydraulic power steering gear. The recirculating ball hydraulic power steering gear comprises a shell, a rocker shaft, a first nut, a second nut, a side cover, a sealing element and an adjusting bolt, wherein a first mounting groove is formed in the middle of the adjusting bolt, an adjusting hole is formed in the side cover, the end part of the rocker shaft is provided with a second mounting groove, the adjusting bolt is installed in the adjusting hole, the head of the adjusting bolt stretches into the second mounting groove, the adjusting bolt is fixed in the second mounting groove through the first nut, the free end of the adjusting bolt penetrates through the adjusting hole and stretches out the side cover, the free end of the adjusting bolt is provided with the second nut, the sealing element is arranged in the first mounting groove of the adjusting bolt, and the sealing element is abutted to form a sealing structure between the. The utility model provides an adjusting bolt and recirculating ball hydraulic power steering gear reduce the risk of oil leak, simplify the manufacturing procedure of side cap and seal structure's assembly process, improve production efficiency, reduce cost, side cap structure lightweight.
Description
Technical Field
The utility model relates to an automobile steering system technical field especially relates to an adjusting bolt and recirculating ball hydraulic power steering gear.
Background
In the field of commercial vehicles, because the load capacity is large and the steering is difficult to be completed completely depending on the hand force of a driver, a power steering gear is generally arranged on commercial vehicles on the market, and provides steering assistance in the steering process of the vehicles, wherein the most common type is a recirculating ball hydraulic power steering gear.
At present, a circulating ball hydraulic power steering gear sealing element 104 is usually arranged on a side cover 102, and the steering gear is formed by matching a rocker arm shaft 101, the side cover 102, an adjusting bolt 103 and the sealing element 104, but the sealing structure is easy to fail, has a certain oil leakage risk, and has large appearance volume, complex structure, high cost and poor assembly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, overcome at least one not enough, provide an adjusting bolt and recirculating ball hydraulic power steering gear.
The utility model adopts the following technical scheme: the utility model provides an adjusting bolt, including the body of rod and set up in the head of body of rod one end, the middle part of the body of rod is equipped with first arch and second arch, first arch with the second arch sets up with having the interval each other, forms first mounting groove.
In an embodiment of the present invention, the rod body is divided into a first rod section and a second rod section by the first protrusion and the second protrusion, the first rod section is close to the head, and the outer diameter of the first rod section is smaller than the outer diameter of the second rod section.
In an embodiment of the present invention, the thickness of the first protrusion and the second protrusion is the same or different.
In an embodiment of the present invention, the first protrusion is closer to the head than the second protrusion, the first protrusion is different from the second protrusion in thickness, and the second protrusion is greater than the first protrusion in thickness.
In an embodiment of the present invention, the rod body, the head, the first protrusion and the second protrusion are integrally formed.
In an embodiment of the present invention, the first protrusion and the second protrusion are annular protrusions formed along the circumferential direction of the rod body.
The utility model also provides a recirculating ball hydraulic power steering gear, including casing, rocking arm axle, first nut, second nut, side cap, sealing member and foretell adjusting bolt, the side cap is equipped with the adjustment hole, the tip of rocking arm axle be equipped with corresponding to the second mounting groove of adjustment hole, install in the adjustment hole adjusting bolt, adjusting bolt's head stretches into in the second mounting groove, just adjusting bolt passes through first nut fixed mounting in the second mounting groove, adjusting bolt's free end passes the adjustment hole and stretches out the side cap setting, adjusting bolt's free end is equipped with the second nut, the sealing member is located in adjusting bolt's the first mounting groove, just the sealing member supports the side cap with between the adjusting bolt to form seal structure.
In an embodiment of the present invention, the inner wall of the adjusting hole is step-shaped.
In an embodiment of the present invention, the recirculating ball hydraulic power steering gear further includes a retainer ring, the retainer ring is disposed in the first mounting groove of the adjusting bolt, and is located on one side of the sealing member.
In an embodiment of the present invention, the second nut is a hexagon nut.
The utility model has the advantages that: the utility model provides an adjusting bolt and recirculating ball hydraulic power steering gear, the sealing member sets up in adjusting bolt's first mounting groove, when installing adjusting bolt in the mounting hole of side cap, the sealing member can closely laminate on the inner wall of adjusting bolt and adjustment hole, form seal structure, the risk of oil leak has been reduced, and compare in the structure that current sealing member set up on the side cap, the manufacturing procedure and the seal structure's of seal structure of side cap have been simplified to the seal structure between the side cap of this application and the adjusting bolt assembly procedure, and the production efficiency is improved, therefore, the cost is reduced, furthermore, the side cap of this application need not set up the structure of installation sealing member, the side cap can be designed thinly, it is compacter to reduce near the structure of side cap, the interference problem that the steering gear appears in whole car installation process has been reduced.
Drawings
FIG. 1 is a schematic view of a partial structure of a conventional recirculating ball hydraulic power steering gear;
fig. 2 is a schematic structural view of the adjusting bolt of the present invention;
FIG. 3 is a schematic structural view of the recirculating ball hydraulic power steering gear of the present invention;
fig. 4 is a partial enlarged view at I in fig. 3.
The figures are numbered: 1. a rocker shaft; 2. a first nut; 3. adjusting the bolt; 4. a second nut; 5. a side cover; 6. a housing; 7. a seal member; 8. a retainer ring; 31. a rod body; 32. a head portion; 33. A first protrusion; 34. a second protrusion; 35. a first mounting groove; 36. a first pole segment; 37. a second pole segment;
101. a rocker shaft; 102 a side cover; 103. adjusting the bolt; 104. and a seal.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown.
Referring to fig. 2, the present invention provides an adjusting bolt 3, which includes a rod 31 and a head 32 disposed at one end of the rod 31, wherein a first protrusion 33 and a second protrusion 34 are disposed at the middle of the rod 31, and the first protrusion 33 and the second protrusion 34 are disposed at intervals to form a first mounting groove 35.
The rod body 31, the head 32, the first protrusion 33 and the second protrusion 34 are of an integrally formed structure, and the integrated structure is simple, good in integrity and convenient to produce and manufacture.
Referring to fig. 2-4, the present invention further provides a recirculating ball hydraulic power steering gear, which includes a housing 6, a rocker shaft 1, a first nut 2, a second nut 4, a side cover 5, a sealing member 7 and the adjusting bolt 3, wherein the side cover 5 is provided with an adjusting hole, the end of the rocker shaft 1 is provided with a second mounting groove corresponding to the adjusting hole, the adjusting hole is internally provided with the adjusting bolt 3, the head 32 of the adjusting bolt 3 extends into the second mounting groove, the adjusting bolt 3 is fixedly mounted in the second mounting groove through the first nut 2, the free end of the adjusting bolt 3 passes through the adjusting hole and extends out of the side cover 5, the free end of the adjusting bolt 3 is provided with the second nut 4, the sealing member 7 is disposed in the first mounting groove 35 of the adjusting bolt 3, and the sealing member 7 is abutted between the side cover 5 and the adjusting bolt 3, so as to form a sealing structure.
The shaft 31 is divided into a first shaft section 36 and a second shaft section 37 by a first projection 33 and a second projection 34, the first shaft section 36 being arranged close to the head 32, the outer diameter of the first shaft section 36 being smaller than the outer diameter of the second shaft section 37. Second pole section 37 is inserted and is located in the adjusting hole, when adjusting bolt 3 is axial motion, there is the interact between second pole section 37 and the side cap 5, need to guarantee the connection structure intensity between second pole section 37 and the lid, and first pole section 36 and rocking arm axle 1 are through first nut 2 fixed connection, consequently, compare in second pole section 37, the external diameter of first pole section 36 can set up for less, under the prerequisite of guaranteeing adjusting bolt 3's structural strength, can alleviate adjusting bolt 3's weight.
The thicknesses of the first and second protrusions 33 and 34 are the same or different. In an embodiment, the first protrusion 33 is closer to the head 32 than the second protrusion 34, the first protrusion 33 and the second protrusion 34 have different thicknesses, and the thickness of the second protrusion 34 is greater than that of the first protrusion 33, because the second protrusion 34 may be abutted against a step in the adjusting hole during the axial movement of the adjusting bolt 3, the weight of the adjusting bolt 3 is reduced on the premise that the thicker second protrusion 34 can ensure the service life of the whole adjusting bolt 3. However, the thickness of the first protrusion 33 and the second protrusion 34 may be the same, and the present invention is not limited thereto.
The first protrusion 33 and the second protrusion 34 are both annular protrusions arranged along the circumferential direction of the rod body 31, and the sealing element 7 is an annular O-shaped sealing ring, so that the sealing effect is excellent.
The inner wall of the adjusting hole is step-shaped. The axial movement distance of the adjusting bolt 3 is limited by the second projection 34 and the second nut 4. When the rocker shaft 1 moves towards the left side, the adjusting bolt 3 is driven to move towards the left side until the second bolt abuts against the side cover 5, so that the rocker shaft 1 is limited to move towards the left side continuously, and in addition, the sealing structure failure caused by the fact that the sealing element 7 is separated from the adjusting hole can be avoided; when the rocker arm shaft 1 moves towards the right side, the adjusting bolt 3 is driven to move towards the right side until the second bulge 34 abuts against the step of the adjusting hole, and then the rocker arm shaft 1 is limited to move towards the right side continuously.
The recirculating ball hydraulic power steering gear further comprises a retainer ring 8, and the retainer ring 8 is arranged in the first mounting groove 35 of the adjusting bolt 3 and is positioned on one side of the sealing element 7. The retainer ring 8 is arranged to enhance the strength of the sealing structure and ensure that the sealing element 7 can keep a better performance shape under the action of a larger external force; the chance that the sealing element 7 is not centered due to extrusion fracture and tearing can be reduced, the sealing element 7 is not easy to extrude and fold, and the service life of the sealing element 7 is greatly prolonged; a collar 8 of a different material, such as teflon 8, also provides adequate lubrication to the seal 7.
The second nut 4 is a hexagon nut, so that the position of the second nut 4 on the adjusting bolt 3 can be conveniently adjusted, and further the axial movement distance of the rocker shaft 1 can be adjusted.
Referring to fig. 2-4, in an embodiment, the adjusting bolt 3 is sleeved in the first nut 2 and fixed on the rocker shaft 1 through a threaded connection, the side cover 5 and the housing 6 are connected through a bolt, the rocker shaft 1 can rotate along an axis, the axial position of the rocker shaft 1 can be adjusted by rotating the adjusting bolt 3, and further the free gap of the steering gear is controlled, and the second nut 4 is used for fixing the position of the adjusting bolt 3. When the steering gear is in a working state, the O-shaped sealing ring and the retainer ring 8 which are arranged on the adjusting bolt 3 at the first mounting groove 35 are matched with the side cover 5 to play a sealing effect.
The above only is the preferred embodiment of the present invention, not therefore the limit the patent protection scope of the present invention, all applications the equivalent structure transformation made by the contents of the specification and the drawings of the present invention is directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an adjusting bolt, its characterized in that, including the body of rod and set up in the head of body of rod one end, the middle part of the body of rod is equipped with first arch and second arch, first arch with the second arch sets up with having the interval each other, forms first mounting groove.
2. The adjusting bolt of claim 1, wherein said shank is separated into a first shank segment and a second shank segment by said first projection and said second projection, said first shank segment being disposed adjacent said head, said first shank segment having an outer diameter less than an outer diameter of said second shank segment.
3. The jack bolt of claim 1, wherein the first projection and the second projection are the same or different thicknesses.
4. The adjuster bolt according to claim 3, wherein said first projection is closer to said head than said second projection, said first projection and said second projection having different thicknesses, said second projection having a thickness greater than said first projection.
5. The jack bolt of claim 1, wherein the shank, the head, the first projection, and the second projection are of one-piece construction.
6. The adjusting bolt of claim 1, wherein the first and second protrusions are annular protrusions disposed circumferentially of the shank.
7. A recirculating ball hydraulic power steering gear comprises a shell, a rocker shaft, a first nut, a second nut, a side cover and a sealing element, characterized in that the adjusting bolt of any one of claims 1-6 is further included, the side cover is provided with an adjusting hole, the end part of the rocker arm shaft is provided with a second mounting groove corresponding to the adjusting hole, the adjusting bolt is mounted in the adjusting hole, the head part of the adjusting bolt extends into the second mounting groove, the adjusting bolt is fixedly arranged in the second mounting groove through the first nut, the free end of the adjusting bolt passes through the adjusting hole and extends out of the side cover, the free end of the adjusting bolt is provided with a second nut, the sealing element is arranged in the first mounting groove of the adjusting bolt, and the sealing element is abutted between the side cover and the adjusting bolt to form a sealing structure.
8. The recirculating ball hydraulic power steering gear of claim 7, wherein the inner wall of said alignment bore is stepped.
9. The recirculating ball hydraulic power steering gear of claim 7, further comprising a retaining ring disposed in the first mounting groove of the adjuster bolt and on one side of the seal.
10. The recirculating ball hydraulic power steering gear of claim 7, wherein said second nut is a hex nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020701253.2U CN212685709U (en) | 2020-04-30 | 2020-04-30 | Adjusting bolt and circulating ball hydraulic power steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020701253.2U CN212685709U (en) | 2020-04-30 | 2020-04-30 | Adjusting bolt and circulating ball hydraulic power steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212685709U true CN212685709U (en) | 2021-03-12 |
Family
ID=74886414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020701253.2U Active CN212685709U (en) | 2020-04-30 | 2020-04-30 | Adjusting bolt and circulating ball hydraulic power steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212685709U (en) |
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2020
- 2020-04-30 CN CN202020701253.2U patent/CN212685709U/en active Active
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