CN203560205U - Lower cavity locking circuit for vertically-installed oil cylinder of hydraulic machine - Google Patents
Lower cavity locking circuit for vertically-installed oil cylinder of hydraulic machine Download PDFInfo
- Publication number
- CN203560205U CN203560205U CN201320738168.3U CN201320738168U CN203560205U CN 203560205 U CN203560205 U CN 203560205U CN 201320738168 U CN201320738168 U CN 201320738168U CN 203560205 U CN203560205 U CN 203560205U
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- oil
- oil cylinder
- resorption
- ball valve
- solenoid valve
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Abstract
The utility model relates to a lower cavity locking circuit for a vertically-installed oil cylinder of a hydraulic machine. The lower cavity locking circuit for the vertically-installed oil cylinder of the hydraulic machine comprises the oil cylinder, an oil tank and an oil pump, wherein the oil cylinder is arranged vertically, an oil outlet is formed in a lower cavity of the oil cylinder, and the oil tank is connected with the oil pump through an oil pipe. The lower cavity locking circuit for the vertically-installed oil cylinder of the hydraulic machine is characterized in that an electromagnetic valve is arranged between the lower cavity of the oil cylinder and the oil pump and is provided with an oil outlet, an oil inlet and an oil returning port, the oil outlet of the lower cavity of the oil cylinder is connected with the oil outlet of the electromagnetic valve through an oil pipe, and the oil inlet of the electromagnetic valve is connected with the oil pump through an oil pipe. A ball valve is arranged between the electromagnetic valve and the oil tank and is provided with an oil outlet and an oil inlet, the oil returning port of the electromagnetic valve is connected with the oil inlet of the ball valve through an oil pipe, and the oil outlet of the ball valve is connected with the oil tank through an oil pipe. The lower cavity locking circuit for the vertically-installed oil cylinder of the hydraulic machine has the advantages that the manufacturing cost is low, the valves for the circuit are convenient to dismantle and clean, the circuit is not prone to damage, the maintenance time is short, and the maintenance cost is low.
Description
Technical field
The utility model relates to a kind of hydraulic press loop, be specifically can make hydraulic press cylinder with weight, rest on the hydraulic press at right angle setting oil cylinder cavity of resorption locking loop that any position do not fall.
Background technique
The hydraulic press of at right angle setting oil cylinder in use needs to make the weight hanging on cylinder piston rod to rest on a certain special position sometimes, this realizes by maintenance oil cylinder cavity of resorption, oil mass is constant, keeping in oil cylinder cavity of resorption oil mass constant is all the neither oil-feed of oil cylinder cavity of resorption conventionally, also not oil return, close oil pump, locking cylinder cavity of resorption makes in-oil cylinder piston out of service.In order to reach this effect, the hydraulic press of at right angle setting oil cylinder need to design hydraulic press at right angle setting oil cylinder cavity of resorption locking loop.
At present, the hydraulic press at right angle setting oil cylinder cavity of resorption locking loop of using in industry, comprise oil cylinder, fuel tank, oil pump and without leaking two-bit triplet Solenoid ball valve, oil cylinder is vertical, oil cylinder cavity of resorption has oil outlet, fuel tank is connected by oil pipe with oil pump, without leaking on two-bit triplet Solenoid ball valve, has oil outlet, filler opening, return opening.Oil outlet on oil cylinder cavity of resorption with without the oil outlet leaking on two-bit triplet Solenoid ball valve, by oil pipe, be connected, without the filler opening leaking on two-bit triplet Solenoid ball valve, be connected by oil pipe with oil pump, without the return opening leaking on two-bit triplet Solenoid ball valve, by oil pipe, be connected with fuel tank.This hydraulic press at right angle setting oil cylinder cavity of resorption locking loop is when the weight on cylinder piston rod arrives the position that needs stop, stop the operation of oil pump, oil pump is not just given oil pressure to filler opening, according to the working principle of solenoid valve, oil cylinder cavity of resorption, to just not leaking into oil pump from filler opening without leaking oil in two-bit triplet Solenoid ball valve, only likely leaks into fuel tank from return opening.Without leaking in two-bit triplet Solenoid ball valve, there is spherical valve core, without the return opening that leaks two-bit triplet electromagnetism, be interior spherical, without leaking two-bit triplet electromagnetic valve spherical valve core and return opening, carry out seamless cooperation, thereby the oil that oil cylinder cavity of resorption is arrived in two-bit triplet Solenoid ball valve also can not leak into fuel tank from return opening, thereby realize the constant of oil mass in oil cylinder, make the weight hanging on the hydraulic press cylinder piston bar of at right angle setting oil cylinder rest on all the time desired position.But the price of this two-bit triplet Solenoid ball valve is 3-5 times of ordinary ball valve, the manufacture cost in this like this hydraulic press at right angle setting oil cylinder cavity of resorption locking loop itself is just higher.And when having granule foreign in the fluid in loop, and granule foreign is while entering into the spherical valve core of two-bit triplet Solenoid ball valve and the position of the seamless cooperation of return opening, this position there will be gap, and oil will let out from gap, makes to lock partial failure.Now, just need to unpick and wash maintenance to two-bit triplet Solenoid ball valve, but this ball valve dismounting is very loaded down with trivial details, disassembly and assembly time is just long, and increased engineering time.This ball valve very easily causes spool to damage in disassembly process, once damage, just needs to change, and maintenance cost is increased.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of hydraulic press at right angle setting oil cylinder cavity of resorption locking loop, and the manufacture cost in this loop is lower, and loop unpicks and washes conveniently with valve, and not fragile, engineering time is few, and maintenance cost is low.
For addressing the above problem, provide following scheme:
Hydraulic press at right angle setting oil cylinder cavity of resorption locking of the present utility model loop comprises oil cylinder, fuel tank and oil pump, and oil cylinder is vertical, and oil cylinder cavity of resorption has oil outlet, and fuel tank is connected by oil pipe with oil pump.Be characterized in there is solenoid valve between described oil cylinder cavity of resorption and oil pump, solenoid valve has the first oil outlet, the first filler opening and return opening, between the first oil outlet of the oil outlet of oil cylinder cavity of resorption and solenoid valve, by oil pipe, be connected, between the first filler opening of solenoid valve and oil pump, by oil pipe, be connected.Between described solenoid valve and fuel tank, have ball valve, ball valve has the second oil outlet and the second filler opening, between the second filler opening of the return opening of solenoid valve and ball valve, by oil pipe, is connected, and between the second oil outlet of ball valve and fuel tank, by oil pipe, is connected.
Wherein, described oil cylinder cavity of resorption is rod chamber; Described solenoid valve is two position four-way solenoid valves; Described ball valve is 2/2-way ball valve.
Take above scheme, have the following advantages:
Owing to having solenoid valve between the oil cylinder cavity of resorption in hydraulic press at right angle setting oil cylinder cavity of resorption of the present utility model locking loop and oil pump, solenoid valve has the first oil outlet, the first filler opening and return opening, between the first oil outlet of the oil outlet of oil cylinder cavity of resorption and solenoid valve, by oil pipe, be connected, between the first filler opening of solenoid valve and oil pump, by oil pipe, be connected; Between described solenoid valve and fuel tank, have ball valve, ball valve has the second oil outlet and the second filler opening, between the second filler opening of the return opening of solenoid valve and ball valve, by oil pipe, is connected, and between the second oil outlet of ball valve and fuel tank, by oil pipe, is connected.By general solenoid valve and an ordinary ball valve with filler opening, oil outlet with oil outlet, filler opening, return opening, replace a two-bit triplet Solenoid ball valve like this, just can realize the function of oil cylinder cavity of resorption locking.The overall cost that general solenoid valve adds an ordinary ball valve is lower than the cost of a two-bit triplet ball valve, and the manufacture cost in hydraulic press at right angle setting oil cylinder cavity of resorption locking of the present utility model like this loop is just relatively low.Because the dismounting of common solenoid valve and ball valve is all very simple, not fragile, so consuming time few while keeping in repair, maintenance cost is relatively low again.
Accompanying drawing explanation
Fig. 1 is the structure principle chart in hydraulic press at right angle setting oil cylinder cavity of resorption locking of the present utility model loop.
Embodiment
Below in conjunction with accompanying drawing, hydraulic press at right angle setting oil cylinder cavity of resorption locking of the present utility model loop is described in further detail.
As shown in Figure 1, hydraulic press at right angle setting oil cylinder cavity of resorption locking of the present utility model loop comprises oil cylinder 4, fuel tank 5, oil pump 1, solenoid valve 3 and ball valve 2, and oil cylinder 4 is vertical, and oil cylinder 4 cavity of resorptions have oil outlet, and fuel tank 5 is connected by oil pipe with oil pump 1.Solenoid valve 3 has the first oil outlet A1, the first oil inlet P 1 and oil return inlet T, between the first oil outlet A1 of the oil outlet of oil cylinder 4 cavity of resorptions and solenoid valve 3, by oil pipe, is connected, and between the first oil inlet P 1 of solenoid valve 3 and oil pump 1, by oil pipe, is connected.Described ball valve 2 has the second oil inlet P 2 and the second oil outlet A2, between the second oil inlet P 2 of the oil return inlet T of solenoid valve 3 and ball valve 2, by oil pipe, is connected, and between the second oil outlet A2 of ball valve 2 and fuel tank 5, by oil pipe, is connected.Wherein, oil cylinder 4 cavity of resorptions are rod chamber.
In the present embodiment, described solenoid valve 3 is two position four-way solenoid valves, also can adopt other any solenoid valve with oil outlet, filler opening and return opening to substitute it, all can realize same effect.Described ball valve 2 is 2/2-way ball valve, also can adopt other any ball valve with oil outlet and filler opening to substitute it, also can realize same effect.
During work, hydraulic press at right angle setting oil cylinder cavity of resorption locking of the present utility model loop is when the weight on oil cylinder 4 piston rods rests on the position that needs stop, stopping oil pump 1 works, oil pump 1 does not just have input pressure to the first oil inlet P 1 of solenoid valve 3 like this, according to the working principle of solenoid valve, oil cylinder 4 cavity of resorption oil outlets just can the first oil inlet P 1 from solenoid valve 3 not leak in oil pump 1 to the oil in solenoid valve 3, according to the character of solenoid valve 3, oil cylinder 4 cavity of resorption oil outlets have a small amount of oil return inlet T from solenoid valve 3 to the oil in solenoid valve 3 and let out, because the oil return inlet T of solenoid valve 3 and the second oil inlet P 2 of ball valve 2 are connected by oil pipe, the oil that oil return inlet T is leaked from solenoid valve 3 so just enters into ball valve 2, the spherical valve core of ball valve 2 and the second oil outlet A2 carry out seamless cooperation, thereby the oil in ball valve 2 can not leaked in fuel tank 5, thereby realize the constant of oil mass in oil cylinder 4, and then realize the weight hanging on hydraulic press cylinder 4 piston rods of at right angle setting oil cylinder 4 and rest on all the time desired position.The price of solenoid valve and ball valve is low, unpicks and washes simply, is difficult for causing the damage of part while unpicking and washing.
Claims (4)
1. hydraulic press at right angle setting oil cylinder cavity of resorption locking loop, comprises oil cylinder (4), fuel tank (5) and oil pump (1), and oil cylinder (4) is vertical, and oil cylinder (4) cavity of resorption has oil outlet, and fuel tank (5) is connected by oil pipe with oil pump (1); It is characterized in that there is solenoid valve (3) between described oil cylinder (4) cavity of resorption and oil pump (1), solenoid valve (3) has the first oil outlet (A1), the first filler opening (P1) and return opening (T), between the oil outlet of oil cylinder (4) cavity of resorption and first oil outlet (A1) of solenoid valve (3), by oil pipe, be connected, between first filler opening (P1) of solenoid valve (3) and oil pump (1), by oil pipe, be connected; Between described solenoid valve (3) and fuel tank (5), there is ball valve (2), ball valve (2) has the second oil outlet (A2) and the second filler opening (P2), between the return opening (T) of solenoid valve (3) and second filler opening (P2) of ball valve (2), by oil pipe, be connected, between second oil outlet (A2) of ball valve (2) and fuel tank (5), by oil pipe, be connected.
2. hydraulic press at right angle setting oil cylinder cavity of resorption locking as claimed in claim 1 loop, is characterized in that described oil cylinder (4) cavity of resorption is rod chamber.
3. hydraulic press at right angle setting oil cylinder cavity of resorption locking as claimed in claim 1 or 2 loop, is characterized in that described solenoid valve (3) is two position four-way solenoid valves.
4. hydraulic press at right angle setting oil cylinder cavity of resorption locking as claimed in claim 1 or 2 loop, is characterized in that described ball valve (2) is 2/2-way ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738168.3U CN203560205U (en) | 2013-11-21 | 2013-11-21 | Lower cavity locking circuit for vertically-installed oil cylinder of hydraulic machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738168.3U CN203560205U (en) | 2013-11-21 | 2013-11-21 | Lower cavity locking circuit for vertically-installed oil cylinder of hydraulic machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560205U true CN203560205U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320738168.3U Expired - Fee Related CN203560205U (en) | 2013-11-21 | 2013-11-21 | Lower cavity locking circuit for vertically-installed oil cylinder of hydraulic machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573751A (en) * | 2013-11-21 | 2014-02-12 | 无锡市蓝力机床有限公司 | Locking circuit for vertically arranged oil cylinder lower cavity of hydraulic machine |
-
2013
- 2013-11-21 CN CN201320738168.3U patent/CN203560205U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573751A (en) * | 2013-11-21 | 2014-02-12 | 无锡市蓝力机床有限公司 | Locking circuit for vertically arranged oil cylinder lower cavity of hydraulic machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214174 Jiangsu province Wuxi city Huishan District Yanqiao Jade Weir Road No. 98 Patentee after: Wuxi blue force Intelligent Equipment Co., Ltd. Address before: 214174 Jiangsu province Wuxi city Huishan District Yanqiao Jade Weir Road No. 98 Patentee before: Wuxi Lanli Machine Tool Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20191121 |