CN201021311Y - Self-unblocking lifting cylinder of steering room hydraulic turning device - Google Patents
Self-unblocking lifting cylinder of steering room hydraulic turning device Download PDFInfo
- Publication number
- CN201021311Y CN201021311Y CNU2007200315539U CN200720031553U CN201021311Y CN 201021311 Y CN201021311 Y CN 201021311Y CN U2007200315539 U CNU2007200315539 U CN U2007200315539U CN 200720031553 U CN200720031553 U CN 200720031553U CN 201021311 Y CN201021311 Y CN 201021311Y
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- CN
- China
- Prior art keywords
- fuel tank
- oil cylinder
- unlocking
- cylinder
- turnover
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a self-unlocking lifting fuel tank of the hydraulic turnover device in a driving room, and comprises a turnover fuel tank with a bidirectional hydraulic lock; a branching fuel rout is arranged on the cavity having rods of the overturn fuel tank; the beginning of the branching fuel rout is connected with the cavity having rods of the overturn fuel tank by the mouth of a three-way pipe, while the terminal thereof is connected with a unlocking fuel tank; the tank body of the unlocking fuel tank is fixed on the tank body of the turnover fuel tank; the piston rod of the unlocking fuel tank is positioned under the lock tongue of the bidirectional hydraulic lock on the turnover fuel tank; the falling back of the driving room can be achieved by directly operating the falling-back program of a operator; during the falling back of the driving room, after the fuel pump changes direction, the hydraulic force initially drives the piston rod of the unlocking fuel tank to extend out to separate the lock tongue from a limit groove arranged on the safety frame of the hydraulic lock to achieve automatic unlocking, meanwhile, the piston rod of the turnover fuel tank can be retracted automatically, as well as the driving room can fall back safely.
Description
Technical field
The utility model relates to the mechanism that automobile cab is dug and fallen, what be specifically related to is a kind of hoist cylinder of hydraulic cab-tilting mechanism.
Background technology
At present, the hoist cylinder of many automobile cab switching mechanisms all is the oil cylinder that has the mechanical lock locking mechanism, and what for example all use on the Buddha's warrior attendant K01 of the Ou Manchong card of Beijing Automobile Workshop Feitian, Chongqing red rock, the new heavily card such as greatly healthy is this oil cylinder.Adopt the cab turning mechanism of this oil cylinder, must spur the flexible axle that is connected on the lockable mechanism before operator's compartment falls after rise, the position-limited trough that dead bolt is broken away from the guard carries out release.Yet, the phenomenon of maloperation but happens occasionally in actual use, promptly the operator has forgotten by the flexible axle release of going ahead of the rest before operator's compartment falls after rise, just start operator's compartment and fallen program after rise, the result makes the piston rod band of overturning oil cylinder guard toward reclaiming, make dead bolt pressurized by force under the situation that is not separated from position-limited trough, dead bolt flexural deformation or the bearing of welding destroyed has an accident.Like this, the lighter causes the damage of overturning oil cylinder, and weight person can cause actual bodily harm to the operator, even entail dangers to is to operator's life security.
The utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, propose a kind of hydraulic cab-tilting mechanism from the release hoist cylinder.
The technical scheme that realizes above-mentioned purpose is: a kind of hydraulic cab-tilting mechanism from the release hoist cylinder, comprise the overturning oil cylinder that has bidirectional hydraulic lock, branch's oil circuit is set on the rod chamber of described overturning oil cylinder, the top of this branch's oil circuit is connected with the rod chamber of overturning oil cylinder by the threeway ozzle, the terminal of branch's oil circuit is connected on the oil cylinder of unblanking, the cylinder body of the described oil cylinder of unblanking is fixed on the cylinder body of overturning oil cylinder, and the piston rod of the oil cylinder of unblanking is positioned at below the dead bolt on the overturning oil cylinder.
The utility model hoist cylinder is owing to there has been the oil cylinder of unblanking, and when the needs operator's compartment fell after rise, operator's direct control falling program got final product.In operator's compartment falling process, after the oil pump change-over valve commutation, hydraulic coupling at first promote the to unblank piston rod of oil cylinder is stretched, and the position-limited trough on dead bolt and the hydraulic lock guard is separated from fully, and automatic unlocking is regained the piston rod of overturning oil cylinder smoothly.It is easy to operate, and is safe and reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model from an embodiment of release hoist cylinder.
Fig. 2 is Figure 1A-A cutaway view.
Fig. 3 is the organigram of oil cylinder of unblanking among Fig. 1.
1. overturning oil cylinder cylinder bodies among the figure, 2. threeway ozzle, 3. overturning oil cylinder piston, 4. overturning oil cylinder piston rod, 5. oil pipe, 6. guard, 7. bearing, the oil cylinder of 8. unblanking, the oil cylinder piston bar of 9. unblanking, 10. pull back spring, 11. dead bolts, 12,13 ozzles, 14,16. steel balls, 15,18. springs, 17. spools, 19. ozzle, 20. cylinder blocks of unblanking.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
In the embodiment shown in fig. 1, the utility model is to increase branch's oil circuit and the oil cylinder of unblanking on the driver's cab turnover oil cylinder that has bidirectional hydraulic lock that uses at present from the release hoist cylinder.Branch's oil circuit is connected with threeway ozzle 2 by oil pipe 5 one ends, promptly be connected with the rod chamber of overturning oil cylinder, the other end is connected on the oil cylinder 8 of unblanking, be fixed with a bearing 7 on the cylinder body of overturning oil cylinder, the unblank cylinder body 20 of oil cylinder is fixed on this bearing 7, and the piston rod 9 of the oil cylinder of unblanking is positioned at below the dead bolt 11 on the overturning oil cylinder.
The unblank oil cylinder of the utility model in the release hoist cylinder is the same with common ram cylinder, is made up of the oil line pipe in cylinder body 20, oil-feed ozzle 19, piston rod 9 and the cylinder body, and be shown in Figure 3.When oil cylinder was unblanked in the pressure oil supply, piston rod 9 rose, and dead bolt 11 jack-up, made dead bolt 11 throw off the position-limited trough of guards 6.
The utility model is as described below from the complete working process of release hoist cylinder:
Dig operator's compartment: supply pressure oil with non-fork dynamic formula oil pump to the ozzle 13 of overturning oil cylinder, oil pressure backs down steel ball 14 to the rodless cavity fuel feeding, promotes piston 3, and piston rod 4 drives guards 6 and stretches out the jack-up operator's compartment together outward.In this process, the oil cylinder 8 of unblanking is in no oil pressure state, piston rod 9 is in the recovery state under the effect of pull back spring 10, and dead bolt 11 keeps closely suiting with guard 6 always, a position-limited trough to the guard 6 whenever, dead bolt 11 just with guard 6 lockings once falls after rise to prevent operator's compartment, guarantees safe lifting.
Fall operator's compartment after rise: after the commutation of oil pump change-over valve, non-fork dynamic formula oil pump supplies pressure oil to the ozzle 12 of overturning oil cylinder, pressure oil is supplied with the oil cylinder 8 of unblanking by threeway ozzle 2 and oil pipe 5, and the piston rod 9 on the oil cylinder 8 of unblanking is dead bolt 11 jack-up, make it with guard 6 on position-limited trough break away from.At this moment, pressure oil also enters in the overturning oil cylinder by ozzle 12, promotes spool 17, and the elastic force and the friction force that overcome spring 18 back down steel ball 14, allows the rodless cavity oil return of oil cylinder.Meanwhile, pressure oil also overcomes the elastic force of spring 15, backs down steel ball 16 and supplies pressure oil to the rod chamber of oil cylinder.In this process, piston rod 4 is finished withdrawal, and safety falls after rise.
Claims (1)
1. a hydraulic cab-tilting mechanism from the release hoist cylinder, comprise the overturning oil cylinder that has bidirectional hydraulic lock, it is characterized in that: branch's oil circuit is set on the rod chamber of described overturning oil cylinder, the top of this branch's oil circuit is connected with the rod chamber of overturning oil cylinder by the threeway ozzle, the terminal of branch's oil circuit is connected on the oil cylinder of unblanking, the cylinder body of the described oil cylinder of unblanking is fixed on the cylinder body of overturning oil cylinder, and the piston rod of the oil cylinder of unblanking is positioned at below the dead bolt on the overturning oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200315539U CN201021311Y (en) | 2007-04-06 | 2007-04-06 | Self-unblocking lifting cylinder of steering room hydraulic turning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200315539U CN201021311Y (en) | 2007-04-06 | 2007-04-06 | Self-unblocking lifting cylinder of steering room hydraulic turning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201021311Y true CN201021311Y (en) | 2008-02-13 |
Family
ID=39088724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200315539U Expired - Fee Related CN201021311Y (en) | 2007-04-06 | 2007-04-06 | Self-unblocking lifting cylinder of steering room hydraulic turning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201021311Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072638A (en) * | 2013-02-06 | 2013-05-01 | 重庆拓泰汽车零部件有限公司 | Mechanical locking safety device of heavy truck cab hydraulic turnover mechanism |
| CN111874092A (en) * | 2019-04-22 | 2020-11-03 | 中国北方车辆研究所 | Steering return locking mechanism assembly operating system |
-
2007
- 2007-04-06 CN CNU2007200315539U patent/CN201021311Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072638A (en) * | 2013-02-06 | 2013-05-01 | 重庆拓泰汽车零部件有限公司 | Mechanical locking safety device of heavy truck cab hydraulic turnover mechanism |
| CN103072638B (en) * | 2013-02-06 | 2015-10-28 | 重庆拓泰汽车零部件有限公司 | Cab of heavy truck hydraulic turnover mechanism mechanical interlocking safety device |
| CN111874092A (en) * | 2019-04-22 | 2020-11-03 | 中国北方车辆研究所 | Steering return locking mechanism assembly operating system |
| CN111891213A (en) * | 2019-04-22 | 2020-11-06 | 中国北方车辆研究所 | Method and system for controlling return locking mechanism of rear axle steering |
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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: 20080213 Termination date: 20130406 |