CN206446662U - One kind is used for circulating ball hydraulic steering gear support adjustment plug rocker arm shaft type export structure - Google Patents
One kind is used for circulating ball hydraulic steering gear support adjustment plug rocker arm shaft type export structure Download PDFInfo
- Publication number
- CN206446662U CN206446662U CN201720083303.3U CN201720083303U CN206446662U CN 206446662 U CN206446662 U CN 206446662U CN 201720083303 U CN201720083303 U CN 201720083303U CN 206446662 U CN206446662 U CN 206446662U
- Authority
- CN
- China
- Prior art keywords
- rocker arm
- arm shaft
- support adjustment
- adjustment plug
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Abstract
It is used for circulating ball hydraulic steering gear support adjustment plug rocker arm shaft type export structure the utility model discloses one kind, including support adjustment plug, support adjustment consent one end is bearing hole, equipped with needle bearing, the other end is seal hole, for installing sealing ring, plain washer and jump ring back-up ring, support adjustment plug plays radial and axial supporting role to rocker arm shaft, while regulation eliminates piston-rack and rocking arm between centers back lash again.Supported without side cover and cause rocker arm shaft without the short end for being connected with side cover, support adjustment plug regulation back lash eliminates the clearance adjustment mechanism of rocker arm shaft short end, it is big end that rocker arm shaft taper fan tooth, which is designed as close to long end, change the axial location of rocker arm shaft by rotating support adjustment plug, the back lash of piston-rack and rocking arm between centers can be eliminated by recycling the taper of rocker arm shaft fan tooth.Without side cover so that housing output mechanism supported hole can be processed into blind hole and opposite side no longer process side cap bore, substantially reduce the appearance and size of steering gear, simplify process.
Description
Technical field
The utility model is related to a kind of circulating ball hydraulic steering gear that is used for and supports adjustment plug rocker arm shaft type export structure.
Background technology
At present, the export structure of circulating ball hydraulic steering gear generally uses side cover Rocker arm shaft structure, i.e., by the short of rocker arm shaft
End is arranged in the bearing hole in the middle of side cover, and afterbody is equipped with adjustable rocker arm shaft and the mechanism of piston-rack back lash, and Shen
Go out to outside side cover, other end length end is then arranged in the bearing hole of housing, and Shen goes out to hull outside, is connected with pull bar plumbing arm,
And housing side is bearing hole, opposite side is then side cover mounting hole, is for installing the travelling gear on fixed side cover, rocker arm shaft
The thickening fan tooth of taper, fans the big end of tooth close to short end, fan tooth taper is usually 5 °~7 °, and steering gear will pass through the rotation of this fan tooth
Steering moment is passed, and the wearing clearance for fanning tooth and piston-rack between cog is then the gap adjustment by rocker arm shaft afterbody
Mechanism enters tooth spiral is fanned, and recycles fan tooth taper to be eliminated.
The side cover rocker arm shaft type structure has a disadvantage that：
1) complicated, part is more, and steering gear appearance and size is big, the difficult arrangement on automobile, and quality is laid particular stress on, and is unfavorable for
Energy-conservation；
2) sealing is poor, and to install fixed side cover, a hole being relatively large in diameter need to be opened on housing, and in order to install rocking arm
The clearance adjustment mechanism of axle afterbody, a screwed hole need to be opened in the middle of side cover, oil leak risk is added again, and this oil leak easily occurs at two
Phenomenon；
Also a kind of structure, is exactly that, using rocker shaft eccentric bearing arrangement, this structure also has in addition to disadvantages mentioned above
One more serious defect：Rocker arm shaft two ends support and adjusted gap by capacity eccentric bearing, and when adjusting gap, two capacity eccentric bearings are not
Easily keep coaxial, accelerated wear test on the contrary.
Utility model content
In order to overcome the existing export structure side cover Rocker arm shaft structure of circulating ball hydraulic steering gear and rocker shaft eccentric bearing knot
It is complicated that structure is present, and size is big, and quality is laid particular stress on, and is unfavorable for the defect of energy-conservation and sealing difference, and rocker shaft eccentric
Bearing arrangement specific wear problem when adjusting gap, the utility model provides a kind of for circulating ball hydraulic steering gear branch
Support adjustment plug rocker arm shaft type export structure, makes to which obviate native defect and problem by changing structure and more effectively works.
The utility model solves the technical scheme that its technical problem used：One kind is used for circulating ball hydraulic steering gear branch
Support adjustment plug rocker arm shaft type export structure, including support adjustment plug, support adjustment consent one end is bearing hole, equipped with needle roller axle
Hold, the other end is seal hole, for installing sealing ring and plain washer and jump ring back-up ring, support adjustment plug plays footpath to rocker arm shaft
To with axial supporting role, while be used to adjust to eliminate piston-rack and rocking arm between centers back lash again.
Due to being supported without side cover, rocker arm shaft is also just without the short end for being used to be connected with side cover, due to being adjusted using support adjustment plug
Save back lash, eliminate the clearance adjustment mechanism of rocker arm shaft short end, and rocker arm shaft taper fan tooth is designed as be close to long end
Big end, changes the axial location of rocker arm shaft by rotating support adjustment plug, recycles the taper of rocker arm shaft fan tooth to disappear
Except the back lash of piston-rack and rocking arm between centers.
Because without side cover, housing output mechanism supported hole just can be processed into blind hole, i.e., only process for installing fixed branch
The hole of support adjustment plug, and opposite side no longer process side cap bore, substantially reduce the appearance and size of steering gear, simplify process.
The beneficial effects of the utility model, which are to provide one kind, is used for the new export structure of circulating ball hydraulic steering gear, to disappear
Except the defect of current used technology, have the following advantages that：
1st, compact conformation, adjusts plug structure using support, by the support of rocker arm shaft by two ends radial support, is changed to output end
The radial and axial support in one end, and clearance adjustment mechanism is integrated into output end, eliminates side cover structure, and rocking arm shaft tail end
Clearance adjustment mechanism, and the length of rocker arm shaft is shortened, the appearance and size of steering gear diminishes, and is easier to arrange on vehicle, subtracts
The light weight of steering gear, due to no side cover, housing uses blind hole structure, and processing is easier, more efficient；
2nd, gap adjustment is easier, and need to only be unclamped locking nut, rotation support adjustment plug；
3rd, good sealing, because without side cover, housing is processed into blind hole, without sealing device, reduces the wind of oil leak
Danger；
4th, good manufacturability, because rocker arm shaft is without afterbody optical axis and clearance adjustment mechanism mounting hole seat, reduces processing
Process, and gear is taper fan tooth, and fan tooth small end, in the afterbody of rocker arm shaft, manufacturability is more preferable.
Brief description of the drawings
Fig. 1 is the new export structure scheme of installation of circulating ball hydraulic steering gear；
Fig. 2 is body diagram；
Fig. 3 is rocker arm shaft schematic diagram；
Fig. 4 is support adjustment plug schematic diagram；
Part, position and numbering in figure：Housing 1, piston-rack 2, rocker arm shaft 3, plane needle roller thrust bearing 4, bearing are put down
Packing ring 5, O-ring seals 6, support adjustment plug 7, needle bearing 8, sealing ring 9, plain washer 10, hole jump ring back-up ring 11, locking screw
Mother 12.
Embodiment
【Embodiment】
When steering gear works, piston-rack 2 is moved along linear reciprocation, and rocker arm shaft 3 is promoted with fan tooth Meshing Pair by rack 2
Rotate, so that exporting steering moment promotes wheel steering, plane needle roller thrust bearing 4 is to 3 axial supporting roles of rocker arm shaft, axle
Peaceful packing ring 5 reduces the contact strength between friction and enhancing support adjustment plug 7 and plane needle roller thrust bearing 4, the footpath of needle bearing 8
Rotated to support rocker arm shaft 3, sealing ring 9 plays rotatory sealing to rocker arm shaft 3 with support adjustment plug 7, and plain washer 10 and hole
Play fixed seal ring 9 with jump ring back-up ring 11,6 pairs of support adjustment plugs 7 of O-ring seals play static seal with housing 1.
When adjusting the gap between piston-rack 2 and the Meshing Pair of rocker arm shaft 3, locking nut 12 only need to be unclamped, inwardly rotation
Support adjustment plug 7, then again locks locking nut 12, simple to operate.
Claims (1)
1. one kind is used for circulating ball hydraulic steering gear support adjustment plug rocker arm shaft type export structure, including housing (1), piston-rack
(2), rocker arm shaft (3), plane needle roller thrust bearing (4), bearing plain washer (5), O-ring seals (6), support adjustment plug (7), rolling
Needle bearing (8), sealing ring (9), plain washer (10), hole jump ring back-up ring (11) and locking nut (12), support adjustment plug (7) hole
One end is bearing hole, equipped with needle bearing (8), and the other end is seal hole, for install sealing ring (9) and plain washer (10) and
Jump ring back-up ring (11), support adjustment plug (7) plays radial and axial supporting role to rocker arm shaft (3), while disappear for regulation again
Except back lash between piston-rack (2) and rocker arm shaft (3), it is characterised in that：Due to being supported without side cover, rocker arm shaft (3) is also with regard to nothing
For the short end being connected with side cover, due to using support adjustment plug (7) regulation back lash, eliminating rocker arm shaft (3) short end
Clearance adjustment mechanism, and it is big end that rocker arm shaft (3) taper fan tooth, which is designed as close to long end, is changed by rotating support adjustment plug
The axial location of rocker arm shaft (3), recycles the taper of rocker arm shaft (3) fan tooth to eliminate piston-rack (2) and rocker arm shaft
(3) back lash between, because without side cover, housing (1) output mechanism supported hole just can be processed into blind hole, i.e., only processing is used for
Install and fix the hole that (7) are filled in support adjustment, and opposite side no longer process side cap bore, the appearance and size of steering gear is substantially reduced,
Simplify process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083303.3U CN206446662U (en) | 2017-01-16 | 2017-01-16 | One kind is used for circulating ball hydraulic steering gear support adjustment plug rocker arm shaft type export structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720083303.3U CN206446662U (en) | 2017-01-16 | 2017-01-16 | One kind is used for circulating ball hydraulic steering gear support adjustment plug rocker arm shaft type export structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206446662U true CN206446662U (en) | 2017-08-29 |
Family
ID=59667452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720083303.3U Expired - Fee Related CN206446662U (en) | 2017-01-16 | 2017-01-16 | One kind is used for circulating ball hydraulic steering gear support adjustment plug rocker arm shaft type export structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206446662U (en) |
-
2017
- 2017-01-16 CN CN201720083303.3U patent/CN206446662U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170829 Termination date: 20180116 |