CN101612764A - Hydraulic device for ground turning aerated brick cutter - Google Patents
Hydraulic device for ground turning aerated brick cutter Download PDFInfo
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- CN101612764A CN101612764A CN200810022030A CN200810022030A CN101612764A CN 101612764 A CN101612764 A CN 101612764A CN 200810022030 A CN200810022030 A CN 200810022030A CN 200810022030 A CN200810022030 A CN 200810022030A CN 101612764 A CN101612764 A CN 101612764A
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Abstract
The present invention relates to the hydraulic system technical field, particularly a kind of hydraulic device for ground turning aerated brick cutter, it comprises fuel tank, pumping source, the control valve group, execution unit, pumping source is pumped from fuel tank and is controlled to execution unit pump oil by the control valve group, execution unit comprises overturning oil cylinder, big flatcar oil cylinder and push trolley oil cylinder, pumping source is the follow-up hydraulic plunger displacement pump, the follow-up hydraulic plunger displacement pump comprises the pump housing, the plunger of pump oil and change the oil pump supporting surface of plunger output flow by the effective travel that changes plunger in the pump housing, the gradient of oil pump supporting surface is by the control of variable oil cylinder.The use of this follow-up hydraulic plunger displacement pump guaranteed executive item the starting, the motion, to these three kinds of motion converter processes of terminal point transition is stably arranged all.
Description
Technical field
The present invention relates to the hydraulic system technical field, particularly a kind of hydraulic device for ground turning aerated brick cutter.
Background technology
Along with the increase of domestic supporting dynamics to environmental protection project, aerating brick manufacturer day by day increases, and the requirement of aerated brick cutter is also improved thereupon.Turn over cutting machine based on the sky at home, but energy loss is big, turn over cutting machine owing to being that six cuttings are relatively discussed more energy-conservation, but because base substrate is softer before not cutting, so equipment is in upset, to balance, the synchronism of shift action, speed etc. have certain requirement during mobile base substrate, and turn over cutting machine does not several years ago have big sales volume with causing always in market.
Hydraulic device for ground turning aerated brick cutter divides three parts to form: 1, power source, adopt single motor duplex pump, and big pump is supplied with flow when quick, the flow when little pump is supplied with at a slow speed.2, control valve group, control overturn platform, big flatcar forward-reverse, push trolley forward-reverse, the conversion of small-large flow.3, execution unit has an overturning oil cylinder, two push trolley oil cylinders, and two big flatcar oil cylinders are formed.Do not cause when the speed change the obvious vibrations that have been in operation of large and small flatcar owing to size stream value in the small-large flow transfer process has intermediate zone, cause the base substrate implosion easily.Large and small flatcar is in operation also needs twin-tub synchronous, and in the system for this reason the configuration be common sub throttle valve, its trueness error is 5%, this just causes two cylinders operation beginning can reach consistent relatively, but accumulated error is arranged after long-time and can't compensate automatically, this makes cut quality to guarantee, has had a strong impact on the efficient and the yield rate of cutting machine, because oil pump is a constant displacement pump, if equipment is operation in 24 hours, so power dissipation is bigger and oily temperature rise temperature rapidly must not long-play.
Summary of the invention
Thereby for overcome original hydraulic device for ground turning aerated brick cutter in the small-large flow transfer process because there is not the flow intermediate zone to cause that large and small flatcar has tangible vibrations at the volley when the speed change, vibrations cause the defective of the easy implosion of base substrate.
The invention provides a kind of hydraulic device for ground turning aerated brick cutter, this ground turning aerated brick cutter hydraulic means comprises fuel tank, pumping source, the control valve group, execution unit, pumping source is pumped from fuel tank and is controlled to execution unit pump oil by the control valve group, execution unit comprises overturning oil cylinder, big flatcar oil cylinder and push trolley oil cylinder, pumping source is the follow-up hydraulic plunger displacement pump, the follow-up hydraulic plunger displacement pump comprises the pump housing, the plunger of pump oil and change the oil pump supporting surface of plunger output flow by the effective travel that changes plunger in the pump housing, the gradient of oil pump supporting surface is by the control of variable oil cylinder.The use of this follow-up hydraulic plunger displacement pump guaranteed executive item the starting, the motion, to these three kinds of motion converter processes of terminal point transition is stably arranged all.
Further, big flatcar oil cylinder has two, and it is synchronous that the passing ratio valve carries out twin-tub between two big flatcar oil cylinders, and described push trolley oil cylinder has two, and it is synchronous that the passing ratio valve carries out twin-tub between two push trolley oil cylinders.The defective that the accumulated error that long-time back produced when traditional use sub throttle valve had been avoided in this design can't compensate automatically.
Further, can not damage because of inner heat in order to prevent the follow-up hydraulic plunger displacement pump, also comprise the pioneer pump group in native system, pioneer pump pump oil is forced cooling to the follow-up hydraulic plunger displacement pump.
Further specifically describe structure, pioneer pump is controlled to variable oil cylinder and follow-up hydraulic plunger displacement pump fuel feeding by reversal valve, the oil return of variable oil cylinder is forced cooling to the follow-up hydraulic plunger displacement pump, at the choke valve that control variables cylinder action speed is set to the pipeline of variable oil cylinder fuel feeding from reversal valve.
Further, fuel tank is an overhead, the fuel tank of this overhead help the follow-up hydraulic plunger displacement pump from absorption, be not easy to inhale empty, oil circuit control and pump had certain effect of lengthening the life, the oil return that enters fuel tank is forced cooling by the shell and tube water cooler, at the oil-out of follow-up hydraulic plunger displacement pump high pressure filter is set.
The invention has the beneficial effects as follows: the cylinder action process of native system is steady, when starting to walk and stopping tangible buffering is arranged, and twin-tub is spent height synchronously, helps the raising of product quality.System can well be cooled off.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a hydraulic schematic diagram of the present invention.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is the structural representation of pumping source among the present invention.
Among the figure: 1. fuel tank, 2. follow-up hydraulic plunger displacement pump, 21. pump housings, 22. plunger, 23. oil pump supporting surfaces, 24. variable oil cylinders, 3. control valve group, 4. overturning oil cylinder, 5. big flatcar oil cylinder, 51. big flatcar master cylinder, 52. big flatcars are followed the tracks of cylinder, 53. big flatcar master cylinder control valves, 54. big flatcar proportioning valve, 6. push trolley oil cylinder, 61. push trolley master cylinders, 62. push trolley is followed the tracks of cylinder, 63. push trolley master cylinder control valves, 64. push trolley proportioning valves, 8. pioneer pump group, 9. reversal valve, 10. choke valve, 11. the shell and tube water cooler, 12. high pressure filters, 14. overflow valves, 15. check valve, 16. electro-hydraulic reversing valves, 17. counterbalance valves, 18. Double throttle check valve, 19. double hydraulic control check valves.
The specific embodiment
A kind of hydraulic device for ground turning aerated brick cutter as shown in Figure 1 comprises fuel tank 1, pumping source, control valve group 3, execution unit and pioneer pump group 8, pumping source is pumped from fuel tank 1 and is controlled to execution unit pump oil by control valve group 3, execution unit comprises overturning oil cylinder 4, big flatcar oil cylinder 5 and push trolley oil cylinder 6, pumping source is a follow-up hydraulic plunger displacement pump 2, follow-up hydraulic plunger displacement pump 2 comprises the pump housing 21, the plunger 22 of pump oil and change the oil pump supporting surface 23 of plunger 22 output flows by the effective travel that changes plunger 22 in the pump housing 21, the gradient of oil pump supporting surface 23 is by 24 controls of variable oil cylinder.
Fuel tank 1 is an overhead, the fuel tank 1 of this overhead help follow-up hydraulic plunger displacement pump 2 from absorption, be not easy to inhale empty, oil circuit control and pump had certain effect of lengthening the life, on fuel tank 1, be provided with empty filter, the oil return oil filter, shell and tube water cooler 11 etc., the oil return that enters fuel tank is forced cooling by shell and tube water cooler 11, empty filter has guaranteed that fuel tank internal air pressure and ambient pressure equate, when exchanging, effectively stop extraneous dust and moisture content oil-feed tank with outside air, return filter is provided with fuel tank 1 top, has made things convenient for the replacing of filter stamen, and filter stamen precision reaches 20mm, make in the system in the particulate that produces because of wearing and tearing and the pipeline residual pollutant no longer enter fuel tank 1 and cause twice pollution, the cleannes that oil product is in operation are effectively guaranteed.Shell and tube cooler 11 adopts water-cooleds, and better aspect the cooling effect of cooler, internal drag also is minimum, and shell and tube cooler 11 has been arranged, and under the too high situation of system's generation abnormal conditions or environment temperature, can take Forced water cooling to the oily temperature that increases suddenly.
Also be provided with a cover pioneer pump group 8 at fuel tank 1 top, guide oil is 2.5Mpa through the direct-acting overflow valve setting pressure, enter reversal valve 9, reversal valve 9, when the centre position, pioneer pump group 8 is a unloading condition, oil return directly enters the following drain tap of follow-up hydraulic plunger displacement pump 2, directly enter fuel tank 1 from the last drain tap of follow-up hydraulic plunger displacement pump 2, effectively guarantee to bring fuel tank 1 into because of most of the giving of the inner heat that produces of rubbing at running, follow-up hydraulic plunger displacement pump 2 has obtained in normal inside in service forcing cooling, can not damage because of inner heat.At the choke valve 10 that control variables oil cylinder 24 responsivenesses are set to the pipeline of variable oil cylinder 24 fuel feeding from reversal valve 9, the oil return of control variables oil cylinder 24 variablees action also enters the following drain port of follow-up hydraulic plunger displacement pump 2 in the lump follow-up hydraulic plunger displacement pump 2 is forced cooling.
Proportioning valves in the system etc. require height to the cleannes of fluid, so at the oil-out of follow-up hydraulic plunger displacement pump 2 high pressure filter 12 is set.When the pollution of filter stamen exceeded standard, the filter stamen polluted signalling generator and reports to the police for middle control with switching signal, so that the timely filter stamen of changing.High cleanliness oil product one tunnel after high-pressure filter 12 filters advances overflow valve 14 steady pressures, must be electric when overflow valve 14, and overflow valve 14 plays the pressure regulation effect, must not be electric when overflow valve 14, system is unloading condition.Hydraulic oil directly enters shell and tube cooler 11 back oil sump tanks 1 from overflow valve 14.Advance check valve 15 from another road of high cleanliness oil product that high-pressure filter 12 comes out and go into control valve group 3, check valve 15 guarantees that the overbottom pressure of system when the oil pump stall can not recoil to oil pump makes oil pump rollback corruption oil pump.The part of control overturning oil cylinder 4 is made up of electro-hydraulic reversing valve 16 and counterbalance valve 17 in the control valve group 3, in switching process because the load that is subjected to of overturning oil cylinder 4 is by just loading to load, to negative load the time, though primary flow path is at fuel feeding, control is to guarantee in the switching process stability when bearing load condition by counterbalance valve 17.
Big flatcar oil cylinder 5 has two, and push trolley oil cylinder 6 has two, and it is synchronous that two big flatcar oil cylinder 5 passing ratio valves carry out twin-tub.This twin-tub may be summarized to be master cylinder control synchronously and follows the tracks of control.When the big flatcar master cylinder control valve in the control valve group 3 53 electric after, big flatcar master cylinder 51 actions, the proportional amplifier that the displacement signal that big flatcar master cylinder 51 actions produce follows the tracks of cylinder 52 for big flatcar by sender after the PLC supercomputing, proportional amplifier converts signal to current signal and gives corresponding big flatcar proportioning valve 54.The open amount of the valve port of big flatcar proportioning valve 54 is changed.Big flatcar is followed the tracks of cylinder 52 speed of service of oneself and the speed of service and the stroke signal of stroke signal and big flatcar master cylinder 51 is compared, and adjusts in real time according to it.At big flatcar master cylinder control valve superposeed for 53 times Double throttle check valve 18 and double hydraulic control check valve 19, maximum speed during big flatcar master cylinder 51 operations of Double throttle check valve 18 control and make big flatcar master cylinder 51 certain back pressure that is in operation, double hydraulic control check valve 19 makes big flatcar master cylinder 51 be turned to invariant position when vertical, and the big flatcar proportioning valve double hydraulic control check valve 19 that superposeed for 54 times makes and follows the tracks of cylinder 52 with big flatcar and be turned to invariant position when vertical.
When the push trolley master cylinder control valve in the control valve group 3 63 electric after, 61 actions of push trolley master cylinder, the displacement signal that 61 actions of push trolley master cylinder produce is followed the tracks of the proportional amplifier of cylinder 62 to push trolley by sender after the PLC supercomputing, proportional amplifier converts signal to current signal and gives corresponding push trolley proportioning valve 64, and the open amount of the valve port of push trolley proportioning valve 64 is changed.Push trolley is followed the tracks of the travel speed of the speed of service of cylinder 62 and stroke and push trolley master cylinder 61 and signal compares and adjust in real time.At push trolley master cylinder control valve superposeed for 63 times Double throttle check valve 18 and double hydraulic control check valve 19, maximum speed during 61 operations of Double throttle check valve 18 control push trolley master cylinders and make push trolley master cylinder 61 certain back pressure that is in operation, double hydraulic control check valve 19 makes push trolley master cylinder 61 be turned to invariant position when vertical, and the push trolley proportioning valve double hydraulic control check valve 19 that superposeed for 64 times makes and follows the tracks of cylinder 62 with push trolley and be turned to invariant position when vertical.
Claims (5)
1, a kind of hydraulic device for ground turning aerated brick cutter, comprise fuel tank (1), pumping source, control valve group (3), execution unit, pumping source from fuel tank (1), pump and by control valve group (3) to execution unit pump oil, execution unit comprises overturning oil cylinder (4), big flatcar oil cylinder (5) and push trolley oil cylinder (6), it is characterized in that: described pumping source is follow-up hydraulic plunger displacement pump (2), follow-up hydraulic plunger displacement pump (2) comprises the pump housing (21), the plunger (22) of pump oil and change the oil pump supporting surface (23) of plunger output flow by the effective travel that changes plunger (22) in the pump housing (21), the gradient of oil pump supporting surface (23) is by variable oil cylinder (24) control.
2, hydraulic device for ground turning aerated brick cutter according to claim 1, it is characterized in that: described big flatcar oil cylinder (5) has two, article two, it is synchronous that the passing ratio valve carries out twin-tub between the big flatcar oil cylinder (5), described push trolley oil cylinder (6) has two, and it is synchronous that the passing ratio valve carries out twin-tub between two push trolley oil cylinders (6).
3, hydraulic device for ground turning aerated brick cutter according to claim 1 is characterized in that: also comprise pioneer pump group (8), pioneer pump group (8) pump oil is forced cooling to follow-up hydraulic plunger displacement pump (2).
4, hydraulic device for ground turning aerated brick cutter according to claim 3, it is characterized in that: described pioneer pump group (8) is forced cooling by reversal valve (9) control to variable oil cylinder (24) fuel feeding or to follow-up hydraulic plunger displacement pump (2), the oil return of variable oil cylinder (24) enters follow-up hydraulic plunger displacement pump (2) and forces cooling, at the choke valve (10) that control variables oil cylinder (24) responsiveness is set to the pipeline of variable oil cylinder (24) fuel feeding from reversal valve (9).
5, hydraulic device for ground turning aerated brick cutter according to claim 1, it is characterized in that: described fuel tank (1) is an overhead, the oil return that enters fuel tank (1) is forced cooling by shell and tube water cooler (11), at the oil-out of follow-up hydraulic plunger displacement pump (2) high pressure filter (12) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810022030 CN101612764B (en) | 2008-06-23 | 2008-06-23 | Hydraulic device for ground turning aerated brick cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810022030 CN101612764B (en) | 2008-06-23 | 2008-06-23 | Hydraulic device for ground turning aerated brick cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101612764A true CN101612764A (en) | 2009-12-30 |
| CN101612764B CN101612764B (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810022030 Expired - Fee Related CN101612764B (en) | 2008-06-23 | 2008-06-23 | Hydraulic device for ground turning aerated brick cutter |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6323002A (en) * | 1986-07-16 | 1988-01-30 | Daiichi Denki Kk | Hydraulic power servo system |
| CN2185169Y (en) * | 1994-04-12 | 1994-12-14 | 戚新生 | Multipurpose hydraulic cutter |
| CN2532968Y (en) * | 2002-03-29 | 2003-01-29 | 张铁忠 | Plate stone press cutter |
| CN201068843Y (en) * | 2007-07-19 | 2008-06-04 | 中山市钜通机电技术有限公司 | Electrohydraulic load pressure flow control variable plunger pump |
| CN201221505Y (en) * | 2008-06-23 | 2009-04-15 | 吴杰 | Ground turnover air adding brick cutting machine hydraulic device |
-
2008
- 2008-06-23 CN CN 200810022030 patent/CN101612764B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6323002A (en) * | 1986-07-16 | 1988-01-30 | Daiichi Denki Kk | Hydraulic power servo system |
| CN2185169Y (en) * | 1994-04-12 | 1994-12-14 | 戚新生 | Multipurpose hydraulic cutter |
| CN2532968Y (en) * | 2002-03-29 | 2003-01-29 | 张铁忠 | Plate stone press cutter |
| CN201068843Y (en) * | 2007-07-19 | 2008-06-04 | 中山市钜通机电技术有限公司 | Electrohydraulic load pressure flow control variable plunger pump |
| CN201221505Y (en) * | 2008-06-23 | 2009-04-15 | 吴杰 | Ground turnover air adding brick cutting machine hydraulic device |
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| Publication number | Publication date |
|---|---|
| CN101612764B (en) | 2013-07-03 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHANGZHOU YIDUN HYDRAULIC TECHNOLOGY CO., LTD. Assignor: Wu Jie Contract record no.: 2010320001009 Denomination of invention: Hydraulic device for ground turning aerated brick cutter License type: Exclusive License Open date: 20091230 Record date: 20100722 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20150623 |
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| EXPY | Termination of patent right or utility model |