CN202228464U - Gear rack hydraulic cylinder device with ball head - Google Patents
Gear rack hydraulic cylinder device with ball head Download PDFInfo
- Publication number
- CN202228464U CN202228464U CN2011203353651U CN201120335365U CN202228464U CN 202228464 U CN202228464 U CN 202228464U CN 2011203353651 U CN2011203353651 U CN 2011203353651U CN 201120335365 U CN201120335365 U CN 201120335365U CN 202228464 U CN202228464 U CN 202228464U
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- piston
- ball
- rack
- tooth bar
- gear rack
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- Expired - Fee Related
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Abstract
The utility model provides a gear rack hydraulic cylinder device with ball heads, which belongs to the hydraulic device. The gear rack hydraulic cylinder device with the ball heads is characterized in that: the left and right ends of the rack are respectively provided with the ball heads. The right end surface of a left piston is provided with a left ball surface groove. The ball head at the left end of the rack is correspondingly embedded in the left ball surface groove. A half section cut type left flange is arranged on the right end surface of the left piston by a left bolt to realize limit connection. The left end surface of a right piston is provided with a right ball surface groove. The ball head at the right end of the rack is correspondingly embedded in the right ball surface groove. A half section cut type right flange is arranged on the left end surface of the right piston by a right bolt to realize limit connection. When the left and right pistons drive the rack to move right or left, as the left and right pistons are both hinged with the left and right ball heads of the rack, the concentricity of the left and right pistons is effectively improved, the phenomenon of the eccentric wear caused by the left and right pistons is reduced, the service life of left and right sealing rings is prolonged, and the repair frequency and production cost are decreased.
Description
Technical field
The utility model belongs to hydraulic pressure installation, especially relates to a kind of cylinder system of gear rack.
Background technique
In the swivel gear of existing lorry-mounted crane, concrete mixer and other vehicles; Often adopt the gear rack cylinder apparatus, but there is a problem in this device: when the concentricity of two cylinder barrels about the gear rack oil cylinder was not enough, the local friction of piston side, the left and right sides increased; Make the seal ring on the piston be easy to damage; Strengthen amount of maintenance, reduced the working efficiency of gear rack cylinder apparatus, increased cost.
Summary of the invention
The purpose of the utility model is the gear rack cylinder system that proposes a kind of head of dribbling, and improves the concentricity of left and right sides cylinder barrel, reduces the lateral deviation mill of piston effectively, prolongs the working life of seal ring, reduces amount of maintenance and cost of production, increases work efficiency.
The purpose of the utility model is that realization is like this: a kind of gear rack cylinder system of the head of dribbling, comprise left cylinder barrel, left piston, left seal ring, gear, tooth bar and right cylinder barrel, right piston, right seal ring, and the open loop groove is installed left seal ring on left piston; Left piston is inserted in the left cylinder barrel, and the open loop groove is installed right seal ring on right piston, and right piston is inserted in the right cylinder barrel; It is secondary that gear rack is formed engagement driving, and it is characterized in that: the right ends of this tooth bar has bulb respectively, on the right side of left piston, offers left spherical groove; The bulb correspondence of tooth bar left end is inlaid in this left spherical groove, and on the right side of left piston, partly cuts open formula left side flange with spacing connection, on the left side of right piston, offer right spherical groove with left bolt installation; The bulb correspondence of tooth bar right-hand member is inlaid in this right spherical groove, and on the left side of right piston, installs and partly cut open the right flange of formula, when the left end oil-feed of left inner cavity of cylinder with spacing connection with right bolt; The promotion left piston moves to right; The drive tooth bar moves right, and when the right-hand member oil-feed of right inner cavity of cylinder, promotes right piston and moves to left; Drive tooth bar to left movement; Because it is hinged that the left bulb of left piston and tooth bar and the right bulb of right piston and tooth bar are, improved the concentricity of left and right piston effectively, reduced the phenomenon that left and right piston produces eccentric wear; Improve the working life of left and right seal ring, reduced amount of maintenance and cost of production.
The gear rack cylinder system of the dribbling head that the utility model proposed, reasonable in design, simple in structure; Improved the concentricity of left and right sides piston effectively; Reduce the phenomenon of left and right sides piston generation eccentric wear, in the working life of having improved left and right sides seal ring, reduced amount of maintenance and cost of production.
Combine accompanying drawing and embodiment that the gear rack cylinder system of the dribbling head that the utility model proposed is described further at present.
Description of drawings
Fig. 1 is the main cross-sectional schematic of the gear rack cylinder system of the dribbling head that proposes of the utility model.
Among Fig. 1: 1, left cylinder barrel 2, left seal ring 3, left piston 4, left bolt 5, left flange 6, tooth bar 7, gear 8, right flange 9, right bolt 10, right piston 11, right seal ring 12, right cylinder barrel.
Embodiment
As can be seen from Figure 1: a kind of gear rack cylinder system of the head of dribbling; Comprise left cylinder barrel 1, left piston 3, left seal ring 2, gear 7, tooth bar 6 and right cylinder barrel 12, right piston 10, right seal ring 11, the open loop groove is installed left seal ring 2 on left piston 3, and left piston 3 is inserted in the left cylinder barrel 1; The open loop groove is installed right seal ring 11 on right piston 10; Right piston 10 is inserted in the right cylinder barrel 12, and gear 7 is formed the engagement driving pair with tooth bar 6, and it is characterized in that: the right ends of this tooth bar 6 has bulb respectively; On the right side of left piston 3, offer left spherical groove; The bulb correspondence of tooth bar 6 left ends is inlaid in this left spherical groove, and on the right side of left piston 3, partly cuts open formula left side flange 5 with spacing connection, on the left side of right piston 10, offer right spherical groove with left bolt 4 installations; The bulb correspondence of tooth bar 6 right-hand members is inlaid in this right spherical groove, and on the left side of right piston 10, partly cuts open the right flange 8 of formula with spacing connection with right bolt 9 installations; When the left end oil-feed of left cylinder barrel 1 inner chamber, promote left piston 3 and move to right, drive tooth bar 6 and move right; When the right-hand member oil-feed of right cylinder barrel 12 inner chambers; Promote right piston 10 and move to left, drive tooth bar 6, because left piston 3 is hinged with the left bulb of tooth bar 6 and the right bulb of right piston 10 and tooth bar 6 to left movement; Improved the concentricity of left and right piston 3,10 effectively; Reduce the phenomenon that left and right piston 3,10 produces eccentric wear, in the working life of having improved left and right seal ring 2,11, reduced amount of maintenance and cost of production.
Claims (1)
- One kind dribble the head the gear rack cylinder system; Comprise left cylinder barrel (1), left piston (3), left seal ring (2), gear (7), tooth bar (6) and right cylinder barrel (12), right piston (10), right seal ring (11); It is characterized in that: the right ends of this tooth bar (6) has bulb respectively; On the right side of left piston (3), offer left spherical groove; The bulb correspondence of tooth bar (6) left end is inlaid in this left spherical groove; And on the right side of left piston (3), partly cut open formula left side flange (5) with spacing connection with left bolt (4) installation; On the left side of right piston (10), offer right spherical groove, the bulb correspondence of tooth bar (6) right-hand member is inlaid in this right spherical groove, and on the left side of right piston (10), install and partly cut open the right flange of formula (8) with spacing connection with right bolt (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203353651U CN202228464U (en) | 2011-09-08 | 2011-09-08 | Gear rack hydraulic cylinder device with ball head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203353651U CN202228464U (en) | 2011-09-08 | 2011-09-08 | Gear rack hydraulic cylinder device with ball head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228464U true CN202228464U (en) | 2012-05-23 |
Family
ID=46079051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203353651U Expired - Fee Related CN202228464U (en) | 2011-09-08 | 2011-09-08 | Gear rack hydraulic cylinder device with ball head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228464U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980140A (en) * | 2018-07-27 | 2018-12-11 | 江苏恒立液压股份有限公司 | Oil cylinder with gear racks and flat car with it |
| CN109253127A (en) * | 2018-03-22 | 2019-01-22 | 太原科技大学 | A kind of ball head structure anti-bias load heavy duty servo hydraulic cylinder |
-
2011
- 2011-09-08 CN CN2011203353651U patent/CN202228464U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253127A (en) * | 2018-03-22 | 2019-01-22 | 太原科技大学 | A kind of ball head structure anti-bias load heavy duty servo hydraulic cylinder |
| CN108980140A (en) * | 2018-07-27 | 2018-12-11 | 江苏恒立液压股份有限公司 | Oil cylinder with gear racks and flat car with it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20160908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |