CN201056229Y - Track-mounted reaper steering cylinder - Google Patents
Track-mounted reaper steering cylinder Download PDFInfo
- Publication number
- CN201056229Y CN201056229Y CNU2007200125553U CN200720012555U CN201056229Y CN 201056229 Y CN201056229 Y CN 201056229Y CN U2007200125553 U CNU2007200125553 U CN U2007200125553U CN 200720012555 U CN200720012555 U CN 200720012555U CN 201056229 Y CN201056229 Y CN 201056229Y
- Authority
- CN
- China
- Prior art keywords
- plunger
- hole
- cylinder body
- ring
- plunger rod
- 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
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Abstract
The utility model discloses a steering cylinder for the crawler harvester, wherein a plunger hole (3) and a cavity hole (4) form a straight through-hole on a cylinder body (1), the plunger hole (3) is cut at the front of the cylinder body (1), and a recovery mechanism composed of shield rings (21, 22), a spring (23), a limiting sleeve (24) and a positioning nut (25) is arranged on a plunger rod (2); a sealing ring (31) and a dustproof ring (32) are provided at the front port of the plunger hole (3), an oil inlet pipe joint (6) is provided on the port of the cavity hole (4) at the back end of the cylinder body (1), a plunger (5) is cut with a ring trench (51), an oil inlet (26) communicated with the ring trench (51) is cut in the plunger rod (2). The utility model has the advantages of good structural property, simple processing technique, convenient manufacture process and low manufacture cost.
Description
Technical field
The utility model relates to Hydraulic Elements, especially for the oil cylinder that turns to of track combine.
Background technology
The prior art track combine turn to oil cylinder, symmetry offers a pair of plunger rod on cylinder body, on cylinder body is corresponding, offer plunger hole and lumen pore, the plunger of plunger rod rearward end and plunger hole are cylinder chamber bearing fit, be provided with retracing spring on the plunger rod in lumen pore, being provided with the end cover on the front end of plunger rod and lumen pore front end matches, be provided with end cap at the cylinder body front end, offer fuel feed hole and oil inlet pipe union at the corresponding plunger hole of rear end of the cylinder block, corresponding two plunger hole parallel connections offer fuel return hole on cylinder body, steering clutch of each plunger rod effect during work.Its shortcoming weak point is, lumen pore and plunger hole are the blind holes that the front end from cylinder body links to each other backward and offers, be positioned at the plunger hole of cylinder body deep inside and the seal groove offered on it in processing, all very difficult when detecting and installing, be not easy to the production and processing manufacturing.
The utility model content
The purpose of this utility model is to improve at above-mentioned the deficiencies in the prior art, provides a kind of fabrication properties good, is convenient to processing and manufacturing, and productive costs is low, guarantees that easily the crawler type reaper of product design turns to oil cylinder.
The technical solution of the utility model is, on cylinder body 1, offer plunger hole 3 backward from front end, the clear opening that lumen pore 4 links to each other, on plunger rod 2, be provided with by back-up ring 21,22, spring 23, stop collar 24, spacing and the Bringing-back mechanism device of plunger stroke that setscrew nut 25 constitutes, 3 front port places offer seal ring 31 and dust ring 32 at plunger hole, on lumen pore 4 ports of cylinder body 1 rear end, be connected with oil inlet pipe union 6, on plunger 5, offer annular groove 51, offer the fuel feed hole 26 that communicates with annular groove 51 in plunger rod 2, corresponding plunger hole 3 is offered fuel return hole T on cylinder body 1.
The utility model is structural good, offer plunger hole 3 cooperates with plunger 5 in the front portion of cylinder body 1, seal groove 30 on the plunger hole 3 is near the front port of plunger hole 3, plunger hole 3 and lumen pore 4 form clear opening on cylinder body 1, and be not provided with end cover with plunger rod 2 bearing fits at lumen pore 4 and 2 of plunger rods, so its processing technology is simple, is convenient to processing and manufacturing, productive costs is low.
Description of drawings
Fig. 1 is the utility model example structure scheme drawing.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
The utility model symmetry on cylinder body 1 offers a pair of plunger rod 2 and its plunger hole 3 and lumen pore 4, plunger hole 3 and lumen pore 4 form clear opening on cylinder body 1, plunger hole 3 is opened in the front portion of cylinder body 1, on plunger rod 2, be provided with by back-up ring 21,22, spring 23, stop collar 24, spacing and the Bringing-back mechanism device of plunger stroke that setscrew nut 25 constitutes, setscrew nut 25 cooperates the spring 23 and the back-up ring 21 that will be installed on the plunger rod 2 with plunger rod 2 rear ends, 22 location, 3 front port places offer seal ring 31 and dust ring 32 at plunger hole, on lumen pore 4 ports of cylinder body 1 rear end by screw thread to being equipped with oil inlet pipe union 6, on plunger 5, offer annular groove 51, offer the fuel feed hole 26 that communicates with annular groove 51 in plunger rod 2, corresponding plunger hole 3 is offered fuel return hole T on cylinder body 1.Pressure oil enters the annular groove of offering on the plunger 5 51 by the fuel feed hole of offering in the fuel feed hole P on the oil inlet pipe union 6, the plunger rod 2 26 plunger 5 is moved ahead during its work, when plunger 5 proceeds to its annular groove 51 with fuel return hole T connection, in-line and oil return line are connected, by the pressure valve control presssure that is provided with on the oil return line, thereby the thrust of control plunger 5, the back of finishing the work are returned by retracing spring 23 drive plungers 5 and are resetted.
Claims (1)
1. the crawler type reaper turns to oil cylinder, it is characterized in that going up symmetry at cylinder body (1) offers a pair of plunger rod (2) and its plunger hole (3) and lumen pore (4), plunger hole (3) and lumen pore (4) are gone up at cylinder body (1) and are formed clear opening, plunger hole (3) is opened in the front portion of cylinder body (1), on plunger rod (2), be provided with back-up ring (21,22), spring (23), stop collar (24), setscrew nut (25), setscrew nut (25) cooperates the spring (23) and the back-up ring (21 that will be installed on the plunger rod (2) with plunger rod (2) rear end, 22) location, offer seal ring (31) and dust ring (32) at plunger hole (3) front port place, on lumen pore (4) port of cylinder body (1) rear end, be connected with oil inlet pipe union (6), on plunger (5), offer annular groove (51), offer the fuel feed hole (26) that communicates with annular groove (51) in plunger rod (2), corresponding plunger hole (3) is offered fuel return hole (T) on cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200125553U CN201056229Y (en) | 2007-06-08 | 2007-06-08 | Track-mounted reaper steering cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200125553U CN201056229Y (en) | 2007-06-08 | 2007-06-08 | Track-mounted reaper steering cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201056229Y true CN201056229Y (en) | 2008-05-07 |
Family
ID=39425075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200125553U Expired - Fee Related CN201056229Y (en) | 2007-06-08 | 2007-06-08 | Track-mounted reaper steering cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201056229Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811436A (en) * | 2010-04-30 | 2010-08-25 | 常州汉森机械有限公司 | Operation control system of crawler-type vehicle |
| CN108533568A (en) * | 2018-06-26 | 2018-09-14 | 湖南省农友机械集团有限公司 | Endless-track vehicle and its steering cylinder |
| CN113530920A (en) * | 2021-06-17 | 2021-10-22 | 北京中金泰达电液科技有限公司 | Stroke limiting structure of hydraulic cylinder |
-
2007
- 2007-06-08 CN CNU2007200125553U patent/CN201056229Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811436A (en) * | 2010-04-30 | 2010-08-25 | 常州汉森机械有限公司 | Operation control system of crawler-type vehicle |
| CN101811436B (en) * | 2010-04-30 | 2012-10-31 | 常州汉森机械有限公司 | Operation control system of crawler-type vehicle |
| CN108533568A (en) * | 2018-06-26 | 2018-09-14 | 湖南省农友机械集团有限公司 | Endless-track vehicle and its steering cylinder |
| CN113530920A (en) * | 2021-06-17 | 2021-10-22 | 北京中金泰达电液科技有限公司 | Stroke limiting structure of hydraulic cylinder |
| CN113530920B (en) * | 2021-06-17 | 2024-05-28 | 北京中金泰达电液科技有限公司 | Hydraulic cylinder stroke limiting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 Termination date: 20100608 |