CN203472985U - Positioning and sealing structure for upper end of gear and rack type steering engine valve - Google Patents
Positioning and sealing structure for upper end of gear and rack type steering engine valve Download PDFInfo
- Publication number
- CN203472985U CN203472985U CN201320588812.3U CN201320588812U CN203472985U CN 203472985 U CN203472985 U CN 203472985U CN 201320588812 U CN201320588812 U CN 201320588812U CN 203472985 U CN203472985 U CN 203472985U
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- Prior art keywords
- steering engine
- engine valve
- type steering
- rack type
- sealing structure
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Abstract
The utility model discloses a positioning and sealing structure for the upper end of a gear and rack type steering engine valve. The positioning and sealing structure comprises a shell, a clamping ring, an oil seal and a deep groove ball bearing and further comprises a connecting sleeve arranged in the shell, wherein the clamping ring, the oil seal and the deep groove ball bearing are arranged at the upper end of the valve in the shell; the oil seal and the deep groove ball bearing are arranged in the connecting sleeve and are installed at the upper end of the valve in a sleeved mode; the clamping ring is installed at one end of the connecting sleeve in a pressing mode. According to the positioning and sealing structure for the upper end of the gear and rack type steering engine valve, oil seal installing steps are arranged in the connecting sleeve, the supporting area of the oil seal is greatly increased, the probabilities of oil leaking and effectiveness loosing due to the fact that the oil seal is deformed through impact in the using process are effectively lowered, and then the sealing performance of the upper end of the gear and rack type steering engine valve is guaranteed.
Description
Technical field
The utility model relates to gear rack type steering engine, is specifically related to gear rack type steering engine valve upper end location sealing structure.
Background technology
In pinion and-rack hydraulic power-assisted steering machine, traditional steering box valve upper end sealing realizes by oil sealing and deep groove ball bearing with location structure.As shown in Figure 2, deep groove ball bearing is arranged in the lower end of oil sealing, and the axial location of oil sealing is to realize by C type snap ring.
The oil sealing using due to traditional steering box valve upper end sealing is low pressure oil sealing, and C type snap ring is very little to the Area of bearing of oil sealing; Therefore when bearing circle is beaten to end position, under the effect of long-term power, by causing distortion and the projection of oil seal lip, can produce the failure mode of leakage of oil.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides sealing property stable, can effectively reduce the gear rack type steering engine valve upper end location sealing structure that leakage of oil failure mode produces.
To achieve these goals, the technical solution adopted in the utility model is:
This gear rack type steering engine valve upper end location sealing structure, comprise housing and the snap ring, oil sealing and the deep groove ball bearing that are located at described valve upper end in described housing, also comprise the adapter sleeve being located in described housing, described oil sealing and described deep groove ball bearing are located in described adapter sleeve and are sleeved on valve upper end; Described snap ring is fitted on described adapter sleeve one end.
On described adapter sleeve outer wall, be provided with seal groove, in described seal groove, be provided with seal ring.
Described seal ring is O type circle.
Described adapter sleeve inwall is ledge structure, and described oil sealing is arranged on the first installation step that is located at described adapter sleeve inwall, and described deep groove ball bearing is arranged on the second installation step that is located at described adapter sleeve inwall.
Described snap ring is fitted in described housing, is provided with the draw-in groove that described snap ring is installed on described housing.
The utility model has the advantage of: this gear rack type steering engine valve upper end location sealing structure, by setting up adapter sleeve, packs in housing together with after oil sealing packs adapter sleeve into deep groove ball bearing; In adapter sleeve, establish oil sealing installation step, greatly increased the Area of bearing of oil sealing, effectively reduced the generation of the leakage of oil inefficacy probability that oil sealing in use causes because of blastic deformation, and then guaranteed gear rack type steering engine valve upper end sealing property.Meanwhile, adopt the hermetically-sealed construction of adapter sleeve, the specification of oil sealing and deep groove ball bearing significantly reduces, and arranges that requisite space reduces, and that has improved steering box assembly can matching.
Accompanying drawing explanation
The content of below each width accompanying drawing of the utility model specification sheets being expressed and the mark in figure are briefly described:
Fig. 1 is the schematic diagram of the utility model gear rack type steering engine valve upper end location sealing structure.
Fig. 2 is the partial enlarged drawing of Fig. 1 gear rack type steering engine valve upper end location sealing structure.
Fig. 3 is the schematic diagram of prior art middle gear rack steering machine valve upper end location sealing structure.
Fig. 4 is the partial enlarged drawing of Fig. 3 gear rack type steering engine valve upper end location sealing structure.
Mark in above-mentioned figure is:
1, housing, 2, snap ring, 3, oil sealing, 4, seal ring, 5, adapter sleeve, 6, deep groove ball bearing.
The specific embodiment
Contrast accompanying drawing below, by the description to optimum embodiment, the specific embodiment of the present utility model is described in further detail.
As shown in Figures 1 and 2, this gear rack type steering engine valve upper end location sealing structure, comprise housing 1 and be located at snap ring 2, oil sealing 3 and the deep groove ball bearing 6 in housing 1, also comprising the adapter sleeve 5 being located in housing 1, oil sealing 3 and deep groove ball bearing 6 are located in adapter sleeve 5 and are sleeved on valve upper end; Snap ring 2 is fitted on adapter sleeve 5 one end.
On adapter sleeve 5 outer walls, be provided with seal groove, in seal groove, be provided with seal ring 4.
Preferably seal ring 4 is O type circle.
Adapter sleeve 5 inwalls are ledge structure, and oil sealing 3 is arranged on the first installation step that is located at adapter sleeve 5 inwalls, and deep groove ball bearing 6 is arranged on the second installation step that is located at adapter sleeve 5 inwalls.
As shown in Figures 3 and 4, traditional structure is that deep groove ball bearing 6 is pressed in housing 1, then oil sealing 3 is pressed in housing 1, finally snap ring 2 is packed in snap ring 2 grooves in housing 1.The specification of bearing and oil sealing 3 is all larger like this, easily causes plastic deformation, affects the normal use of steering box; And snap ring 2 is less for the Area of bearing of oil sealing 3, oil sealing 3 is long-term uses the generation of inefficacy probability larger.
Gear rack type steering engine valve upper end location sealing structure shown in Fig. 1 and Fig. 2, oil sealing 3 and deep groove ball bearing 6 are first pressed in the adapter sleeve 5 that has packaged seal ring 4, then adapter sleeve 5 are packed in housing 1; Finally snap ring 2 is packed in the draw-in groove of housing 1.Sealing structure is converted into conventional confguration snap ring 2 Area of bearing of oil sealing 3 corresponding on adapter sleeve 5 for the Area of bearing of oil sealing 3, expanded the Area of bearing of oil sealing 3, effectively reduces oil sealing 3 leakage of oil inefficacy probability in use.
Meanwhile, due to the supporting role of adapter sleeve 5, the specification of oil sealing 3 and deep groove ball bearing 6 has been changed little a lot, so arranges that requisite space is just little, and that has improved assembly can matching.
Test figures shows: use the incidence of the steering box zero kilometer of above-mentioned new construction and valve upper end oil sealing leakage of oil to be after sale significantly less than the steering box that adopts conventional confguration; Finally, after passing through the fatigue test of deflector, all technical of deflector all meets the requirements; Adopt the deflector of this new construction to complete the examination of client road simultaneously, and entrucking in batches, prove that this scheme meets operating needs completely.
The utility model specific implementation is not limited by aforesaid way, as long as the various unsubstantialities that adopted the design of the utility model method and technical scheme to carry out improve, all within the utility model protection domain.
Claims (5)
1. gear rack type steering engine valve upper end location sealing structure, comprise housing and the snap ring, oil sealing and the deep groove ball bearing that are located at described valve upper end in described housing, it is characterized in that: also comprise the adapter sleeve being located in described housing, described oil sealing and described deep groove ball bearing are located in described adapter sleeve and are sleeved on valve upper end; Described snap ring is fitted on described adapter sleeve one end.
2. gear rack type steering engine valve as claimed in claim 1 upper end location sealing structure, is characterized in that: on described adapter sleeve outer wall, be provided with seal groove, in described seal groove, be provided with seal ring.
3. gear rack type steering engine valve as claimed in claim 2 upper end location sealing structure, is characterized in that: described seal ring is O type circle.
4. the gear rack type steering engine valve upper end location sealing structure as described in claim 1 or 2 or 3, it is characterized in that: described adapter sleeve inwall is ledge structure, described oil sealing is arranged on the first installation step that is located at described adapter sleeve inwall, and described deep groove ball bearing is arranged on the second installation step that is located at described adapter sleeve inwall.
5. gear rack type steering engine valve as claimed in claim 4 upper end location sealing structure, is characterized in that: described snap ring is fitted in described housing, is provided with the draw-in groove that described snap ring is installed on described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588812.3U CN203472985U (en) | 2013-09-23 | 2013-09-23 | Positioning and sealing structure for upper end of gear and rack type steering engine valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588812.3U CN203472985U (en) | 2013-09-23 | 2013-09-23 | Positioning and sealing structure for upper end of gear and rack type steering engine valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203472985U true CN203472985U (en) | 2014-03-12 |
Family
ID=50221369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320588812.3U Expired - Fee Related CN203472985U (en) | 2013-09-23 | 2013-09-23 | Positioning and sealing structure for upper end of gear and rack type steering engine valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203472985U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266304A (en) * | 2018-01-25 | 2018-07-10 | 东方电气集团东方电机有限公司 | A kind of tubular turbine guide bearing structure |
| CN111828595A (en) * | 2019-04-18 | 2020-10-27 | Zf主动安全和电子美国有限公司 | Steering shaft support assembly |
-
2013
- 2013-09-23 CN CN201320588812.3U patent/CN203472985U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266304A (en) * | 2018-01-25 | 2018-07-10 | 东方电气集团东方电机有限公司 | A kind of tubular turbine guide bearing structure |
| CN111828595A (en) * | 2019-04-18 | 2020-10-27 | Zf主动安全和电子美国有限公司 | Steering shaft support assembly |
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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 |
Granted publication date: 20140312 Termination date: 20190923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |