CN201103577Y - Simple liquid-controlled device - Google Patents
Simple liquid-controlled device Download PDFInfo
- Publication number
- CN201103577Y CN201103577Y CNU2007200145364U CN200720014536U CN201103577Y CN 201103577 Y CN201103577 Y CN 201103577Y CN U2007200145364 U CNU2007200145364 U CN U2007200145364U CN 200720014536 U CN200720014536 U CN 200720014536U CN 201103577 Y CN201103577 Y CN 201103577Y
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- China
- Prior art keywords
- oil
- hydraulic control
- cylinder
- oil pump
- control device
- 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.)
- Expired - Fee Related
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- 239000007788 liquid Substances 0.000 title description 2
- 239000000945 filler Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
The utility model relates to a hydraulic control device. The simple hydraulic control device comprises an oil pump and a single effect plugger cylinder. The connecting pipeline between an oil inlet port of the cylinder and the oil pump is provided with a check valve. Compared with an existing hydraulic control device, the hydraulic control device is characterized in that: the improved hydraulic device directly supplies oil to the oil cylinder by the check valve when the oil pump is started. At the other time, the oil pump is in a stop station, thus saving energy and reducing oil temperature. The oil drainage loop of the oil cylinder adjusts the speed by using a throttle valve. The changes of the working resistance cause the changes of the feeding speed; therefore, the changes are helpful to the self-adaption of the working condition. An overflow hole is opened at a proper position on the cylinder for restricting the travel route.
Description
Technical field:
The utility model relates to machine control unit, particularly hydraulic control device.
Background technique:
Hydraulic control at present is widely used, the one-way cylinder (is example with horizontal saw mill saw bow hoist cylinder) that particularly outer power (spring force, gravity, other active forces) resets, its motion control device as shown in Figure 1, working procedure is as follows: 1, rewind down (saw bow lifting) pressure oil enters oil cylinder by three-position four-way valve; 2, F.F. (saw bow decline) is the oil cylinder draining by three-position four-way valve under action of gravity; 3, the worker advances (saw bow descends at a slow speed) under action of gravity, is the oil cylinder draining by two position three-way valve and series flow control valve, and draining speed is by regulating series flow control valve control; The extreme limit of travel position of advance and retreat is limited by electric position limit switch.Exist following problem in the course of the work: 1, other working staties (F.F., worker advance, suspend) are installed all in the full flow overflow except that rewind down, and to compare with the loop cycle time be very little the rewind down time, and therefore a lot of energy have become oily temperature rise and slatterned.2, for setting, the variation with resistance does not change work speed by series flow control valve.3, liquid controling element is more, needs again and the electric device cooperating.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned not enough problem, and a kind of simple and easy hydraulic control unit is provided, and is simple in structure, easy to operate, energy-conserving and environment-protective.
The technological scheme that the utility model is adopted for achieving the above object is: simple and easy hydraulic control unit, comprise oil pump and single-action plunger piston cylinder, and on cylinder barrel filler opening and the oil pump connecting pipeline one-way valve is housed.
Have overflow hole on the described cylinder barrel.
On the draining path, throttle valve is housed.
The utility model is compared with existing hydraulic control device, has outstanding feature, and the hydraulic control unit after the improvement only starts oil pump at rewind down, and directly to the oil cylinder fuel feeding, the other times oil pump stops by one-way valve, and energy saving reduces the oil temperature.The leakage passage of oil cylinder is selected throttle valve adjustment speed for use, and the variation of working resistance causes the variation of feed speed, is to operating mode self adaption to a certain extent, is useful.Overflow hole is opened in the appropriate location on cylinder barrel, the restriction stroke.
Description of drawings:
Fig. 1 is existing hydraulic control unit structural representation.
Fig. 2 is the utility model structural representation.
Embodiment:
Simple and easy hydraulic control unit as shown in Figure 2, simple and easy hydraulic control unit, comprise oil pump 1 and single-action plunger piston cylinder 6, on cylinder barrel 11 filler openings and the oil pump connecting pipeline one-way valve 8 is housed, having overflow hole on the cylinder barrel is communicated with the draining road, throttle valve 9 is housed on the draining road, also oil circuit switch 10 can be housed on the draining road in case of necessity.When being applied on the Band saw machine, cylinder barrel is fixedlyed connected with external equipment 7 saw bows, and can move up and down with respect to plunger 12.Compare with existing, oil circuit is simplified, and not only saves three-position four-way valve 3 and two position three-way valve 4 in Fig. 1 oil circuit, and saves relief valve 2 and series flow control valve 5 in the oil circuit, convenient operation and control.
Claims (4)
1, simple and easy hydraulic control unit comprises oil pump and single-action plunger piston cylinder, it is characterized in that: on cylinder barrel (11) filler opening and oil pump (1) connecting pipeline one-way valve (8) is housed.
2, simple and easy hydraulic control unit according to claim 1 is characterized in that: have overflow hole on the cylinder barrel (11) and be communicated with the draining road.
3, simple and easy hydraulic control unit according to claim 1 is characterized in that: throttle valve (9) is housed on the draining road.
4, simple and easy hydraulic control unit according to claim 3 is characterized in that: oil circuit switch (10) also is housed on the draining road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200145364U CN201103577Y (en) | 2007-09-12 | 2007-09-12 | Simple liquid-controlled device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200145364U CN201103577Y (en) | 2007-09-12 | 2007-09-12 | Simple liquid-controlled device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103577Y true CN201103577Y (en) | 2008-08-20 |
Family
ID=39950602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200145364U Expired - Fee Related CN201103577Y (en) | 2007-09-12 | 2007-09-12 | Simple liquid-controlled device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103577Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893007A (en) * | 2010-07-23 | 2010-11-24 | 吴旭 | Plunger case lifting hydraulic control system |
| CN101934463A (en) * | 2009-06-30 | 2011-01-05 | 朱宝云 | Rolling device of wet cylinder liner |
| CN104188775A (en) * | 2014-08-11 | 2014-12-10 | 成都市浩瀚医疗设备有限公司 | Pedal laterally-operated-type lifting sickbed |
-
2007
- 2007-09-12 CN CNU2007200145364U patent/CN201103577Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934463A (en) * | 2009-06-30 | 2011-01-05 | 朱宝云 | Rolling device of wet cylinder liner |
| CN101893007A (en) * | 2010-07-23 | 2010-11-24 | 吴旭 | Plunger case lifting hydraulic control system |
| CN104188775A (en) * | 2014-08-11 | 2014-12-10 | 成都市浩瀚医疗设备有限公司 | Pedal laterally-operated-type lifting sickbed |
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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: 20080820 |