CN104528599A - Safe and wear-resistant oil supply system of lifting device - Google Patents
Safe and wear-resistant oil supply system of lifting device Download PDFInfo
- Publication number
- CN104528599A CN104528599A CN201410636089.0A CN201410636089A CN104528599A CN 104528599 A CN104528599 A CN 104528599A CN 201410636089 A CN201410636089 A CN 201410636089A CN 104528599 A CN104528599 A CN 104528599A
- Authority
- CN
- China
- Prior art keywords
- piston
- oil
- cylinder
- valve
- oil cylinder
- 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.)
- Pending
Links
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003247 decreasing Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 42
- 239000010720 hydraulic oil Substances 0.000 description 3
- 210000001138 Tears Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound 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[Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000003638 reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
Abstract
The invention discloses a safe and wear-resistant oil supply system of a lifting device. The oil supply system comprises an oil cylinder, an oil pipe, a rotary distribution valve, the lifting device and a stop valve, wherein the rotary distribution valve is mounted at the top end of the lifting device; the oil cylinder is mounted in the lifting device; the stop valve is mounted at the bottom of the oil cylinder; the oil cylinder comprises a cylinder body, a piston and an end cover; the end cover is mounted at the bottom of the cylinder body; a through hole is formed in the middle position of the piston at the upper part of a valve body; a piston rod is mounted at the upper part of the piston; a small cavity is formed in the bottom of the piston rod; the top of the piston extends into the small cavity; and the through hole is communicated with the small cavity. The oil cylinder is connected with a hydraulic pump station through the rotary distribution valve to prevent the lifting device from wearing the oil pipe in the steering process, and the small cavity in the oil cylinder enables the descending speed to be decreased when a vehicle-mounted plate descends to near the ground, so that the slow descending is realized, the ground impact from the descending is relieved, and the effects of more safety and reliability are achieved; and when the oil pipe suddenly bursts, the stop valve enables the lifting devices to slowly descend so as to reduce the accident rate.
Description
Technical field
The present invention relates to hydraulic ram field, specifically a kind of jack up unit fuel-feed system of wear-resisting safety.
Background technology
Along with the growth of population and the development of society, vehicle is increasing.Due to increasing sharply of automobile quantity, the problem of parking difficulty is caused to become increasingly conspicuous.Particularly full size vehicle, as motor omnibus, is parked in open parking round mostly, takies a large amount of planimetric position.The particularly bustling location in big city, plane formula parking area cannot meet the demand that full size vehicle is parked and passed in and out.The bustling location in the big city of an inch of land is an inch of gold, employing automobile stereo formula garage parking and underground parking garage are the inexorable trends of Future Development.But underground parking garage parking limited amount, and Underground Construction is difficult, so basement garage generally becomes to be integrated with surface structures, the passage also needing vehicle to sail into and roll away from; The input in existing automobile stereo formula garage parking is comparatively large, cost is higher, and autonomous cruise speed system is very complicated, and it is loaded down with trivial details to stop the program of picking up the car, length consuming time, and maintenance difficult, thus the development limiting automobile stereo formula garage parking.
Stop and under the situation of increasingly sharpening by the contradiction of car, development of new, efficiently, easily automobile parking equipment is imperative.Current jack up unit adopts motor to drive, generally driven by motor and speed reducer, when some emergency case are as having a power failure, vehicle-carrying plate declines fast and easily causes accident to occur, adopt hydraulic ram to drive and can solve this problem, but current hydraulic ram is all directly be connected with Hydraulic Station, when rotating by oil pipe, oil pipe can be followed equipment and be rotated together, thus serious wear.
Summary of the invention
The object of the present invention is to provide a kind of jack up unit fuel-feed system that can be applied to the wear-resisting safety of three-dimensional parking apparatus, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of jack up unit fuel-feed system of wear-resisting safety, comprise oil cylinder, oil pipe, rotary distributing valve, jack up unit and shutoff valve, described rotary distributing valve is arranged on the top of jack up unit, one end of rotary distributing valve connects hydraulic power unit by oil pipe, the other end of rotary distributing valve connects oil cylinder by oil pipe, described oil cylinder is arranged on the inside of jack up unit, described shutoff valve is arranged on the bottom of oil cylinder, described oil cylinder comprises cylinder body, piston and end cap, described end cap is arranged on the bottom of cylinder body, end cap is provided with oilhole, described piston is arranged on end upper part of the cover cylinder interior, the midway location of piston base is provided with valve body, the piston midway location on valve body top offers through hole, the top of piston is provided with piston rod, the bottom of piston rod is provided with loculus, the top of piston is stretched in loculus, through hole and loculus UNICOM, the outside of described piston rod is provided with orienting sleeve, between orienting sleeve and piston rod, seal ring is installed, orienting sleeve is fixed by screws on cylinder body.
As the further scheme of the present invention: the spool of described shutoff valve is provided with oil through, the diameter of oil through is less than the diameter of shutoff valve.
As the present invention's further scheme: the material of described piston and orienting sleeve is copper or cast iron.
Compared with prior art, the invention has the beneficial effects as follows:
Oil cylinder in the present invention connects hydraulic power unit by rotary distributing valve, prevent jack up unit to wear and tear in steering procedure oil pipe, and the vehicle-carrying plate that in-oil cylinder loculus makes jack up unit drive is dropping to close to ground reduction of speed degree reduction at present, thus realize slowly landing, impact to ground when alleviating whereabouts, more safe and reliable, shutoff valve makes jack up unit slowly decline when oil pipe bursts suddenly, reduces accident rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of oil cylinder in the present invention.
In figure: 1-oil cylinder, 2-oil pipe, 3-rotary distributing valve; 4-orienting sleeve; 5-screw; 6-cylinder body; 7-piston rod; 8-loculus; 9-piston; 10-valve body; 11-oilhole, 12-end cap; 13-jack up unit; 14-through hole; 15-seal ring; 16-shutoff valve.
Detailed description of the invention
Be described in more detail below in conjunction with the technical scheme of detailed description of the invention to this patent.
Refer to Fig. 1-2, a kind of jack up unit fuel-feed system of wear-resisting safety, comprise oil cylinder 1, oil pipe 2, rotary distributing valve 3, jack up unit 13 and shutoff valve 16, described rotary distributing valve 3 is arranged on the top of jack up unit 13, one end of rotary distributing valve 3 connects hydraulic power unit by oil pipe 2, the other end of rotary distributing valve 3 connects oil cylinder 1 by oil pipe 2, described oil cylinder 1 is arranged on the inside of jack up unit 13, described shutoff valve 16 is arranged on the bottom of oil cylinder 1, the spool of shutoff valve 16 is provided with oil through, the diameter of oil through is less than the diameter of shutoff valve 16, described oil cylinder 1 comprises cylinder body 6, piston 9 and end cap 12, described end cap 12 is arranged on the bottom of cylinder body 6, end cap 12 is provided with oilhole 10, the cylinder body 6 that described piston 9 is arranged on end cap 12 top is inner, midway location bottom piston 9 is provided with valve body 10, piston 9 midway location on valve body 10 top offers through hole 14, the top of piston 9 is provided with piston rod 7, the bottom of piston rod 7 is provided with loculus 8, the top of piston 9 is stretched in loculus 8, through hole 14 and loculus 8 UNICOM, the outside of described piston rod 7 is provided with orienting sleeve 4, orienting sleeve 4 is for playing the guiding role to the motion of piston rod 7, seal ring 15 is installed between orienting sleeve 4 and piston rod 7, orienting sleeve 4 is fixed on cylinder body 6 by screw 5, the material of described piston 9 and orienting sleeve 4 is copper or cast iron.
When the vehicle-carrying plate of three-dimensional parking apparatus needs to rise, start hydraulic power unit, open rotary distributing valve 3, oil cylinder 1 is by fuel feeding, valve body 10 is opened, and hydraulic oil is introduced in loculus 8, and in this process, piston rod 7 rises, jack up unit 13 is driven to rise, piston 9 is motionless, and after being full of oil in loculus 8, piston 9 rises together with piston rod 7, drive jack up unit 13 to continue to rise, jack up unit 13 drives vehicle-carrying plate to rise; When the vehicle-carrying plate of three-dimensional parking apparatus needs to decline, stop hydraulic power unit, remove the hydraulic pressure that hydraulic power unit provides, vehicle-carrying plate declines under the effect of deadweight, oil cylinder 1 is shunk by pressure simultaneously, now valve body 10 is closed, piston 9 declines together with piston rod 7, when piston 9 drops to minimum, valve body 10 is opened, and in loculus 8, oil is extruded by compression, piston rod 7 continues to decline, because hydraulic oil extruded velocity from loculus 8 is little, therefore piston rod 7 descending speed is slow, thus vehicle-carrying plate is being dropped to close to ground reduction of speed degree reduction at present.
When hydraulic efficiency pressure system normally works, the spool of shutoff valve 16 is opened, the positive normal open oil of oil cylinder 1, when hydraulic efficiency pressure system catastrophic failure bursts suddenly as oil pipe 2, shutoff valve 16 can be subject to larger moment impact load and be closed by spool, hydraulic oil now in oil cylinder 1 chamber is slowly flowed out by the oil through in shutoff valve 16, then jack up unit 13 can slowly decline, and minimizing accident occurs.
Oil cylinder 1 in the present invention connects hydraulic power unit by rotary distributing valve 3, prevent jack up unit 13 to wear and tear in steering procedure oil pipe 2, and the vehicle-carrying plate that in-oil cylinder loculus 8 makes jack up unit 13 drive is dropping to close to ground reduction of speed degree reduction at present, thus realize slowly landing, impact to ground when alleviating whereabouts, more safe and reliable, shutoff valve 16 makes jack up unit 13 slowly decline when oil pipe bursts suddenly, reduces accident rate.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (3)
1. the jack up unit fuel-feed system of a wear-resisting safety, comprise oil cylinder (1), oil pipe (2), rotary distributing valve (3), jack up unit (13) and shutoff valve (16), it is characterized in that, described rotary distributing valve (3) is arranged on the top of jack up unit (13), one end of rotary distributing valve (3) connects hydraulic power unit by oil pipe (2), the other end of rotary distributing valve (3) connects oil cylinder (1) by oil pipe (2), described oil cylinder (1) is arranged on the inside of jack up unit (13), described shutoff valve (16) is arranged on the bottom of oil cylinder (1), described oil cylinder (1) comprises cylinder body (6), piston (9) and end cap (12), described end cap (12) is arranged on the bottom of cylinder body (6), end cap (12) is provided with oilhole (10), the cylinder body (6) that described piston (9) is arranged on end cap (12) top is inner, the midway location of piston (9) bottom is provided with valve body (10), piston (9) midway location on valve body (10) top offers through hole (14), the top of piston (9) is provided with piston rod (7), the bottom of piston rod (7) is provided with loculus (8), the top of piston (9) is stretched in loculus (8), through hole (14) and loculus (8) UNICOM, the outside of described piston rod (7) is provided with orienting sleeve (4), seal ring (15) is installed between orienting sleeve (4) and piston rod (7), orienting sleeve (4) is fixed on cylinder body (6) by screw (5).
2. the jack up unit fuel-feed system of wear-resisting safety according to claim 1, is characterized in that, the spool of described shutoff valve (16) is provided with oil through, and the diameter of oil through is less than the diameter of shutoff valve (16).
3. the jack up unit fuel-feed system of wear-resisting safety according to claim 1, is characterized in that, the material of described piston (9) and orienting sleeve (4) is copper or cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636089.0A CN104528599A (en) | 2014-11-13 | 2014-11-13 | Safe and wear-resistant oil supply system of lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636089.0A CN104528599A (en) | 2014-11-13 | 2014-11-13 | Safe and wear-resistant oil supply system of lifting device |
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| Publication Number | Publication Date |
|---|---|
| CN104528599A true CN104528599A (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410636089.0A Pending CN104528599A (en) | 2014-11-13 | 2014-11-13 | Safe and wear-resistant oil supply system of lifting device |
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| CN (1) | CN104528599A (en) |
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Application publication date: 20150422 |