CN202012521U - Power failure pressure-retaining valve for steel ball processing - Google Patents
Power failure pressure-retaining valve for steel ball processing Download PDFInfo
- Publication number
- CN202012521U CN202012521U CN2011200752965U CN201120075296U CN202012521U CN 202012521 U CN202012521 U CN 202012521U CN 2011200752965 U CN2011200752965 U CN 2011200752965U CN 201120075296 U CN201120075296 U CN 201120075296U CN 202012521 U CN202012521 U CN 202012521U
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- China
- Prior art keywords
- pressure
- oil
- power failure
- oil cylinder
- steel ball
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- 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 power failure pressure-retaining valve for steel ball processing. The power failure pressure-retaining valve for steel ball processing can seal hydraulic oil after power is interrupted suddenly so as to guarantee pressure and adjust pressure freely under the working condition. The power failure pressure-retaining valve for steel ball processing comprises a big cavity of an oil cylinder and a small cavity of the oil cylinder, wherein a pressure gauge is arranged on a pipeline of the big cavity of the oil cylinder; a reversing valve which is used commonly by pipelines of the big cavity and the small cavity is arranged on the pipelines of the big cavity and the small cavity of the oil cylinder; the pressure gauge, a variable pump and a cooling device are arranged on a control oil way after the pipelines are reversed by the reversing valve; the pipeline of the small cavity of the oil cylinder is directly led to an oil pond; a power failure pressure-retaining valve is connected with the pipelines of the big cavity and the small cavity of the oil cylinder in series; and after the pressure gauge, the variable pump and the cooling device are arranged on the control oil way, the control oil way is led to the oil pond. The power failure pressure-retaining valve for steel ball processing has the advantage of sealing oil when power is interrupted suddenly so as to retain pressure and freely adjust pressure under the working condition.
Description
Technical field:
The utility model relates to the power failure pressure retaining valve in the processing of a kind of steel ball, is specially adapted to steel ball and adds and use during sudden power man-hour.
Background technique:
Hydraulic principle control ball lapping machine commonly used ground steel ball when existing steel ball was processed, if occur the anything unexpected situation in the working procedure, and sudden power, this moment, pressure was let out suddenly, and the club of pressing from both sides between two plates falls down.Particularly on the ball lapping machine, the ball (see figure 2) of can damaging, if use the hydraulic control of Fig. 1, on the pipeline in the big chamber of oil cylinder, increase a Pilot operated check valve 4, after the sudden power, can guarantee that two plates still have pressure, but,, want to be transferred to little pressure from big pressure if in the course of the work, just be difficult to realize, because hydraulic oil has been sealed by Pilot operated check valve.
Summary of the invention:
Task of the present utility model is to propose a kind ofly to seal hydraulic oil after sudden power, has both guaranteed pressure, again can be at the power failure pressure retaining valve in the freely regulated a kind of steel ball processing of working condition downforce.Task of the present utility model is done in such a way that the power failure pressure retaining valve in the steel ball processing, and it comprises the large and small chamber of oil cylinder.On the pipeline in the big chamber of oil cylinder pressure gauge is housed, the selector valve of common use is housed on the pipeline in the large and small chamber of oil cylinder, through on the control oil channel pressure gauge being housed after the selector valve commutation, variable displacement pump and cooling device, this bye-pass of oil cylinder loculus directly leads to oil sump, it is characterized in that: have on the pipeline in the large and small chamber of cylinder to be serially connected with the power failure pressure retaining valve.Power failure pressure retaining valve in the steel ball processing is characterized in that: lead to oil sump after pressure gauge, variable displacement pump and cooling device are housed on the control oil channel.The utlity model has following effect: this valve can be lived oil sealing when sudden power, can keep pressure, again can be in working condition downforce free adjustment.
Description of drawings:
Fig. 1 is the prior art structural representation; Fig. 2 is the another kind of structural representation of prior art; Fig. 3 is a structural representation of the present utility model.
Drawing explanation: 1, the big chamber of oil cylinder.2, oil cylinder loculus.3, pressure gauge.The 3-1 pressure gauge.4, Pilot operated check valve.5, selector valve.6, pilot line.7, variable displacement pump.8, cooling device.9, oil sump.10, power failure pressure retaining valve.
Embodiment:
Describe embodiment in detail in conjunction with above accompanying drawing, be connected on the pipeline below the big chamber of oil cylinder 1 on the pipeline of big chamber 1 of pressure gauge 3. oil cylinders and oil cylinder loculus 2 and be serially connected with a hydraulically-controlled one-way valve 4, (see figure 1), on the pipeline below the big chamber 1 of oil cylinder pressure gauge 3 is housed as shown in Figure 2, Fig. 1 and Fig. 2 are prior aries, and its shortcoming no longer is repeated in this description.Embodiment of the present utility model is: be connected with a pressure gauge 3 on the pipeline in the big chamber 1 of oil cylinder, be serially connected with power failure pressure retaining valve 10 on the pipeline of big chamber 1 of oil cylinder and oil cylinder loculus 2, big chamber of oil cylinder and oil cylinder loculus for convenience of description, it is big to abbreviate oil cylinder as, loculus 1,2, big at oil cylinder, the common selector valve 5 that uses of two pipelines is housed on the pipeline of loculus, after the selector valve commutation, be divided into one of two bye-pass and be control oil channel 6, this bye-pass of oil cylinder loculus directly leads to oil sump 9, be connected with pressure gauge 3-1 on 1 pilot line of the big chamber of oil cylinder, with variable displacement pump 7, oil leads to oil sump 9 through cooling device 8 coolings again behind variable displacement pump, the power failure pressure retaining valve that the utility model adopts is after sudden power, pilot line 6 backs down selector valve, a large amount of oil are refluxed, and cylinder is retreated, if but want to allow pressure lower, small part oil is refluxed, the knob of direct Moderator Variable pump 7, a spot of oil just can reflux, thereby satisfies job requirement.
Claims (2)
1. the power failure pressure retaining valve on steel ball is processed, it comprises the large and small chamber of oil cylinder.On the pipeline in the big chamber of oil cylinder pressure gauge is housed, the selector valve of common use is housed on the pipeline in the large and small chamber of oil cylinder, through on the control oil channel pressure gauge being housed after the selector valve commutation, variable displacement pump and cooling device, this bye-pass of oil cylinder loculus directly leads to oil sump, it is characterized in that: have on the pipeline in the large and small chamber of cylinder to be serially connected with the power failure pressure retaining valve.
2. the power failure pressure retaining valve in the steel ball processing according to claim 1 is characterized in that: lead to oil sump after pressure gauge, variable displacement pump and cooling device are housed on the control oil channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200752965U CN202012521U (en) | 2011-03-15 | 2011-03-15 | Power failure pressure-retaining valve for steel ball processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200752965U CN202012521U (en) | 2011-03-15 | 2011-03-15 | Power failure pressure-retaining valve for steel ball processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202012521U true CN202012521U (en) | 2011-10-19 |
Family
ID=44783134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200752965U Expired - Fee Related CN202012521U (en) | 2011-03-15 | 2011-03-15 | Power failure pressure-retaining valve for steel ball processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202012521U (en) |
-
2011
- 2011-03-15 CN CN2011200752965U patent/CN202012521U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20160315 |