CN202251195U - Single-point compensation electromagnetic hydraulic combined control valve - Google Patents
Single-point compensation electromagnetic hydraulic combined control valve Download PDFInfo
- Publication number
- CN202251195U CN202251195U CN2011203937200U CN201120393720U CN202251195U CN 202251195 U CN202251195 U CN 202251195U CN 2011203937200 U CN2011203937200 U CN 2011203937200U CN 201120393720 U CN201120393720 U CN 201120393720U CN 202251195 U CN202251195 U CN 202251195U
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- China
- Prior art keywords
- valve
- accumulator
- oil circuit
- control valve
- oil conduit
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- Expired - Fee Related
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model discloses a single-point compensation electromagnetic hydraulic combined control valve comprising a pressure regulation valve which divides an oil conduit into a main oil conduit communicated to a torque converter and an auxiliary oil conduit communicated to a micro valve; the micro valve communicates a control oil conduit to an electromagnetic reversing valve; the pressure regulation valve is provided with a branch auxiliary oil conduit which is communicated to an accumulator; and the accumulator communicates a compensation oil conduit to the control oil conduit. The single-point compensation electromagnetic hydraulic combined control valve has the advantages that: a forklift starts slowly at low speed and is difficult to load and climb a slope and the like due to gap leak, oil cleanliness and other factors caused by wear in the later use period.
Description
Technical field
The utility model relates to the compensation electromagnetism fluid power of a kind of combination combined control valve, especially single-point combined control valve.
Background technique
At present, the control valve that uses on traditional fork truck gearbox comprises fluid-controlled valve, all is the oil circuit that adopts single control; Fluid power compensation oil duct is not set, but reality in use, along with the frequent movement of spool; Will inevitably cause wearing and tearing, the gap of generation, it is inevitable to leak nature; Leakage can cause the not enough and pressure decline of flow system flow, and it is slow to influence the low speed starting, the problems such as climbing difficulty of bearing a heavy burden.In addition, along with fork truck uses for a long time, system's turbidity test meeting variation; Also can going bad of fluid blocked fluid-controlled valve and electromagnetism fluid power combined control valve throttle orifice, causes that flow reduces, pressure reduces; Can cause that equally also the low speed starting is slow, the problems such as climbing difficulty of bearing a heavy burden.
The model utility content
The technical problem that the utility model will solve provides the compensation electromagnetism fluid power of a kind of single-point combined control valve, prevents that fork truck from using the later stage, because wearing and tearing cause factors such as clearance leakage, oil cleanliness to cause the low speed starting slow, and the deficiencies such as climbing difficulty of bearing a heavy burden.
The utility model is realized through following technological scheme.
The compensation electromagnetism fluid power of a kind of single-point combined control valve; It has comprised that pressure regulator valve is divided into the working connection that passes to torque-converters, the auxiliary oil circuit that passes to inching valve with oil circuit; Inching valve passes to solenoid directional control valve with control oil channel; Above-mentioned pressure regulator valve is provided with the auxiliary oil circuit of branch and passes to accumulator, and accumulator will compensate oil circuit and pass to control oil channel.
Further, above-mentioned auxiliary oil circuit is provided with branch's oil circuit and passes to accumulator.
Further, above-mentioned accumulator inside has comprised spool and two groups of springs, and spool is located at the accumulator central position, and two groups of springs set up the position, accumulator end place at spool two ends separately.
The beneficial effect of the utility model:
1, realizes the instantaneous lifting of pressure through the single-point compensation of oil duct pressure, realize the fork truck operating sensitivity;
2, compensation through the oil duct single-point, can remedy the clearance leakage that causes owing to the valve core movement wearing and tearing, guarantee the flow and the pressure of hydraulic system normal need;
3, compensation through the oil duct single-point, can remedy because the throttle orifice that cleanliness issues causes blocks the flow of the system pressure oil that causes and the loss of pressure, guarantee the flow and the pressure of hydraulic system normal need.
Description of drawings
Fig. 1 is the principle schematic of the compensation electromagnetism fluid power of the utility model single-point combined control valve;
Fig. 2 is the structural representation of accumulator.
Embodiment
According to accompanying drawing and embodiment the utility model is done further explain below.
Fig. 1 is the principle schematic of the compensation electromagnetism fluid power of the utility model single-point combined control valve, and with reference to Fig. 1, pressure regulator valve 1 is divided into two with oil circuit, is respectively working connection 11 and auxiliary oil circuit 13, and working connection 11 passes to torque-converters 2, and auxiliary oil circuit passes to inching valve 3.Pressure regulator valve 1 is provided with the branch oil circuit, promptly auxiliary oil circuit 111, and auxiliary oil circuit 111 passes to accumulator 5, and auxiliary oil circuit 13 also is provided with branch's oil circuit 131 and passes to accumulator 5.Inching valve 3 is that control oil channel 31 passes to solenoid directional control valve with oil circuit, and accumulator 5 promptly compensates oil circuit for oil circuit 51 and is communicated with control oil channel 31.
Fig. 2 is the structural representation of accumulator, with reference to Fig. 2, and combines Fig. 1; Accumulator 5 is to be made up of spool 53 and two groups of springs 55,57, and accumulator 5 is in initial position under the spring force effect in the neutral position, and compensate the filler opening of oil circuit 51 and closed by spool 53 this moment; Advance or when retreating gear, accumulator 5 begins compression under action of hydraulic force when being in, play the buffering engagement; Avoid fluid clutch to receive the effect of hydraulic shock; And being in compressive state, compensation oil circuit 51 is connected, and plays the pressurize supplementary function.
When the utility model is in running order; Hydraulic oil is transferred the 1 whole two-way that is divided into after filtering by oil pump output through pressure regulator valve, and one the tunnel gets into torque-converters 2; Another road gets into accumulator 5, inching valve 3, solenoid valve 4 etc., and solenoid electric valve 4 is controlled advance gear, neutral, retreated gear.Amount of movement through accumulator 5 is connected working connection 11 and control oil channel 31 to the control of compensation oil circuit 51, forms auxiliary feed-oil.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage that is familiar with this art can understand the utility model content and also implements, and can not limit the protection domain of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection domain of the utility model.
Claims (3)
1. the compensation electromagnetism fluid power of single-point combined control valve; It has comprised that pressure regulator valve is divided into the working connection that passes to torque-converters, the auxiliary oil circuit that passes to inching valve with oil circuit; Inching valve passes to solenoid directional control valve with control oil channel; It is characterized in that said pressure regulator valve is provided with the auxiliary oil circuit of branch and passes to accumulator, accumulator will compensate oil circuit and pass to control oil channel.
2. the compensation electromagnetism fluid power of single-point according to claim 1 combined control valve is characterized in that said auxiliary oil circuit is provided with branch's oil circuit and passes to accumulator.
3. the compensation electromagnetism fluid power of single-point according to claim 1 combined control valve is characterized in that said accumulator inside has comprised spool and two groups of springs, and spool is located at the accumulator central position, and two groups of springs set up the position, accumulator end place at spool two ends separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203937200U CN202251195U (en) | 2011-10-17 | 2011-10-17 | Single-point compensation electromagnetic hydraulic combined control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203937200U CN202251195U (en) | 2011-10-17 | 2011-10-17 | Single-point compensation electromagnetic hydraulic combined control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251195U true CN202251195U (en) | 2012-05-30 |
Family
ID=46112445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203937200U Expired - Fee Related CN202251195U (en) | 2011-10-17 | 2011-10-17 | Single-point compensation electromagnetic hydraulic combined control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251195U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277360A (en) * | 2013-06-21 | 2013-09-04 | 合肥力威汽车油泵有限公司 | Electromagnetic hydraulic combined control valve |
| CN105971952A (en) * | 2016-06-24 | 2016-09-28 | 长安大学 | Hydraulic locked oil charging system of hydraulic torque converter used for loader |
| CN108561356A (en) * | 2017-12-29 | 2018-09-21 | 杭州前进齿轮箱集团股份有限公司 | A kind of used with tractor commutation hydraulic device |
-
2011
- 2011-10-17 CN CN2011203937200U patent/CN202251195U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277360A (en) * | 2013-06-21 | 2013-09-04 | 合肥力威汽车油泵有限公司 | Electromagnetic hydraulic combined control valve |
| CN105971952A (en) * | 2016-06-24 | 2016-09-28 | 长安大学 | Hydraulic locked oil charging system of hydraulic torque converter used for loader |
| CN108561356A (en) * | 2017-12-29 | 2018-09-21 | 杭州前进齿轮箱集团股份有限公司 | A kind of used with tractor commutation hydraulic device |
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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: 20120530 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |