CN204800467U - Planogrinder's hydraulic drive system - Google Patents

Planogrinder's hydraulic drive system Download PDF

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Publication number
CN204800467U
CN204800467U CN201520523658.0U CN201520523658U CN204800467U CN 204800467 U CN204800467 U CN 204800467U CN 201520523658 U CN201520523658 U CN 201520523658U CN 204800467 U CN204800467 U CN 204800467U
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China
Prior art keywords
oil
valve
hydraulic pump
fuel tank
fluid
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CN201520523658.0U
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Chinese (zh)
Inventor
陆士超
李勇
庞丽丽
苏美亭
刘凯
郭洋
朱明锋
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SHANDONG LIHUI HEAVY INDUSTRIES Co Ltd
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SHANDONG LIHUI HEAVY INDUSTRIES Co Ltd
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Abstract

The utility model discloses a planogrinder's hydraulic drive system belongs to planogrinder technical field, including oil tank, switching -over valve with be used for driving planogrinder workstation reciprocating motion's pneumatic cylinder, hydraulic drive system includes still that at least two are used for output the confession pressure equipment of fluid is put in the oil tank, and is every the first hydraulic pump that all includes by a motor drive is put in the confession pressure equipment, and is every the oil inlet of first hydraulic pump is all connected the oil tank, it is every the oil -out of first hydraulic pump is all connected the oil inlet of switching -over valve, the actuator port of switching -over valve connects the pneumatic cylinder, the oil return opening of switching -over valve is connected the oil tank. The utility model provides a planogrinder's hydraulic drive system has not only saved the energy, makes the fluid circulation smooth and easy moreover, prevents the fluid high temperature, has prolonged the life of each part.

Description

The fluid power system of planograinder
Technical field
The utility model belongs to planograinder technical field, particularly relates to a kind of fluid power system of planograinder.
Background technology
Planograinder reciprocatingly slides the workbench be provided with by hydraulic drive system drives, as shown in Figure 1, existing fluid power system comprises fuel tank 100 and hydraulic cylinder 200, the piston rod of hydraulic cylinder 200 connects above-mentioned workbench, fuel tank 100 connects a hydraulic pump driven by motor 300 400, this hydraulic pump 400 is constant displacement pump, and the oil-out of hydraulic pump 400 connects a flow valve 500, is provided with reversal valve 600 between flow valve 500 and hydraulic cylinder 200.When grinding, driving hydraulic pump 400 to export fluid by motor 300, through flow valve 500 and reversal valve 600, thus making the piston rod of hydraulic cylinder 200 drive workbench to do to move back and forth at a high speed; When workbench needs low speed to move back and forth, such as when carrying out workpiece alignment operation, then utilize flow valve 500 to control the output quantity of fluid, the piston rod of adjustment hydraulic cylinder 200 drives the shift reciprocately speed of workbench.
There is following shortcoming in above-mentioned fluid power system: when workbench moves back and forth with low speed, although the fluid flow needed for hydraulic cylinder 200 reduces, but motor 300 still drives hydraulic pump 400 to export quantitative fluid with maximum power output, therefore, hydraulic pump 400 export fluid some be back to fuel tank 100, motor acting is not fully utilized, cause the waste on the energy, and fluid cannot smooth outflow, easily cause oil liquid temperature too high, and then affect the service life of each parts of fluid power system.
Utility model content
Technical problem to be solved in the utility model is: the fluid power system providing a kind of planograinder, with the workbench solving existing planograinder when low-speed motion, not only waste energy, and easily cause oil liquid temperature too high, affect the technical problem in the service life of each parts.
For solving the problems of the technologies described above, the technical solution of the utility model is: the fluid power system of planograinder, comprise fuel tank, reversal valve and the hydraulic cylinder for driving planograinder workbench to move back and forth, described fluid power system also comprises at least two for exporting the confession pressure device of described fuel tank inner fluid, every described pressure device that supplies includes by the first motor-driven first hydraulic pump, often the oil-in of described first hydraulic pump all connects described fuel tank, often the oil-out of described first hydraulic pump all connects the oil-in of described reversal valve, the actuator port of described reversal valve connects described hydraulic cylinder, the oil return opening of described reversal valve connects described fuel tank.
Improve as one, the control port of described reversal valve is connected with the pilot valve of the spool movement for promoting described reversal valve, the oil-in of described pilot valve is connected with by the second motor-driven second hydraulic pump, the oil-in of described second hydraulic pump connects described fuel tank, and the oil return opening of described pilot valve connects described fuel tank.
As further improvement, between the oil-in of described pilot valve and the oil-out of described second hydraulic pump, be provided with the second check valve.
As further improvement, between the second fluid pressure line between the oil-out and described second check valve of described second hydraulic pump and described fuel tank, be provided with safety valve.
Improve as one, between the oil-out of the oil-in of described reversal valve and often described first hydraulic pump, be equipped with the first check valve.
As further improvement, between the first fluid pressure line between the oil-out and described first check valve of every described first hydraulic pump and described fuel tank, be equipped with pilot-type relief valve.
Improve as one, between the oil return opening of described reversal valve and described fuel tank, be provided with counterbalance valve.
Improve as one, described first hydraulic pump has three, and accordingly, described first motor has three.
After have employed technique scheme, the beneficial effects of the utility model are: because the fluid power system of planograinder comprises fuel tank, reversal valve, hydraulic cylinder and at least two for export described fuel tank inner fluid for pressure device, the described pressure device that supplies comprises the first motor and the first hydraulic pump, thus when workbench needs low speed to move back and forth, only start first motor, the first hydraulic pump is driven to export fluid by first motor, the piston rod of hydraulic cylinder is made to drive workbench to move back and forth as low speed through reversal valve, when workbench needs to move back and forth at a high speed, restart other the first motors, make system can according to different job requirements, select to start corresponding first motor, thus adjustment hydraulic cylinder drives the shift reciprocately speed of workbench, not only save the energy, and it is smooth and easy to make fluid circulate, prevent oil liquid temperature too high, extend the service life of each parts.The fluid power system of the planograinder that the utility model provides not only saves the energy, and it is smooth and easy that fluid is circulated, and prevents oil liquid temperature too high, extend the service life of each parts.
Because the control port of described reversal valve is connected with pilot valve, the oil-in of described pilot valve is connected with by the second motor-driven second hydraulic pump, the oil-in of described second hydraulic pump connects described fuel tank, the oil return opening of described pilot valve connects described fuel tank, thus the fluid in fuel tank is transported to reversal valve through pilot valve by the second driven by motor second hydraulic pump, thus drive the movement of the spool of reversal valve, and then corresponding for reversal valve oil circuit is switched on or switched off.
Owing to being provided with the second check valve between the oil-in of described pilot valve and the oil-out of described second hydraulic pump, not only preventing system pressure impact from affecting the normal work of the second hydraulic pump, and prevent fluid from flowing backward to fuel tank through the second hydraulic pump.
Owing to being provided with safety valve between the second fluid pressure line and described fuel tank, safety valve is opened when system overload, thus the safety of safeguards system.
Owing to being equipped with the first check valve between the oil-in of described reversal valve and the oil-out of every described first hydraulic pump, not only preventing system pressure impact from affecting the normal work of the first hydraulic pump, and prevent fluid from flowing backward to fuel tank through the first hydraulic pump.
Owing to being equipped with pilot-type relief valve between the first fluid pressure line and described fuel tank, when the outside control mouth of pilot-type relief valve is communicated with fuel tank, the main valve plug of pilot-type relief valve can lift rapidly when inlet pressure is very low, makes the first hydraulic pump off-load, to reduce energy loss.
Owing to being provided with counterbalance valve between the oil return opening of described reversal valve and described fuel tank, counterbalance valve plays cushioning effect, improves the stationarity of working table movement.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the fluid power system that prior art provides;
Fig. 2 is the structural representation of the utility model embodiment one;
Fig. 3 is the structural representation of the utility model embodiment two;
In figure: 100, fuel tank, 200, hydraulic cylinder, 300, motor, 400, hydraulic pump, 500, flow valve, 600, reversal valve, 1, fuel tank, 2, reversal valve, 3, hydraulic cylinder, 4, for pressure device, the 41, first motor, the 42, first hydraulic pump, 5, the first check valve, 6, counterbalance valve, 7, pilot valve, the 8, second motor, 9, the second hydraulic pump, the 10, first fluid pressure line, 11, pilot-type relief valve, 12, the second check valve, the 13, second fluid pressure line, 14, safety valve.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment one
As shown in Figure 2, a kind of fluid power system of planograinder, comprise fuel tank 1, reversal valve 2 and the hydraulic cylinder 3 for driving planograinder workbench to move back and forth, fluid power system also comprises at least two for exporting the confession pressure device 4 of fuel tank 1 inner fluid, each pressure device 4 that supplies includes the first hydraulic pump 42 driven by the first motor 41, first hydraulic pump 42 is constant displacement pump, the oil-in of every first hydraulic pump 42 all connects fuel tank 1, the oil-out of every first hydraulic pump 42 all connects the oil-in of reversal valve 2, the actuator port connecting fluid cylinder pressure 3 of reversal valve 2, the oil return opening of reversal valve 2 connects fuel tank 1.
In order to the normal work preventing system pressure impact from affecting the first hydraulic pump 42, being equipped with the first check valve 5, first check valve 5 between the oil-in of reversal valve 2 and the oil-out of every first hydraulic pump 42 can also prevent fluid from flowing backward to fuel tank 1 through the first hydraulic pump 42.
Be provided with counterbalance valve 6 between the oil return opening of reversal valve 2 and fuel tank 1, counterbalance valve 6 cushioning effects, improve the stationarity of working table movement.
In the present embodiment, the first hydraulic pump 42 has three, and accordingly, the first motor 41 has three.
Its operation principle is as follows:
When workbench needs low speed to move back and forth, only start first motor 41, the first hydraulic pump 42 is driven to export fluid by first motor 41, the piston rod of hydraulic cylinder 3 is made to drive workbench to move back and forth as low speed through reversal valve 2, when workbench needs to move back and forth at a high speed, restart other the first motors 41, make system can according to different job requirements, select to start corresponding first motor 41, thus adjustment hydraulic cylinder 3 drives the shift reciprocately speed of workbench, not only save the energy, and it is smooth and easy to make fluid circulate, prevent oil liquid temperature too high, extend the service life of each parts.
Embodiment two
The present embodiment is substantially identical with embodiment one, its difference is, as shown in Figure 3, the control port of reversal valve 2 is connected with the pilot valve 7 of the spool movement for promoting reversal valve 2, the oil-in of pilot valve 7 is connected with the second hydraulic pump 9 driven by the second motor 8, second hydraulic pump 9 is variable pump, the oil-in of the second hydraulic pump 9 connects fuel tank 1, the oil return opening of pilot valve 7 connects fuel tank 1, second motor 8 drives the second hydraulic pump 9 that the fluid in fuel tank 1 is transported to reversal valve 2 through pilot valve 7, thus drive the movement of the spool of reversal valve 2, and then corresponding for reversal valve 2 oil circuit is switched on or switched off.
Pilot-type relief valve 11 is equipped with between the first fluid pressure line 10 between the oil-out and the first check valve 5 of each first hydraulic pump 42 and fuel tank 1, when the outside control mouth of pilot-type relief valve 11 is communicated with fuel tank 1, the main valve plug of pilot-type relief valve 11 can lift rapidly when inlet pressure is very low, make the first hydraulic pump 42 off-load, to reduce energy loss.
In order to the normal work preventing system pressure impact from affecting the second hydraulic pump 9, be provided with the second check valve 12, second check valve 12 between the oil-in of pilot valve 7 and the oil-out of the second hydraulic pump 9 and can also prevent fluid from flowing backward to fuel tank 1 through the second hydraulic pump 9.
Be provided with safety valve 14 between the second fluid pressure line 13 between the oil-out and the second check valve 12 of the second hydraulic pump 9 and fuel tank 1, safety valve 14 is opened when system overload, thus the safety of safeguards system.
The fluid power system of the planograinder that the utility model provides not only saves the energy, and it is smooth and easy that fluid is circulated, and prevents oil liquid temperature too high, extend the service life of each parts.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims (8)

1. the fluid power system of planograinder, comprise fuel tank, reversal valve and the hydraulic cylinder for driving planograinder workbench to move back and forth, it is characterized in that, described fluid power system also comprises at least two for exporting the confession pressure device of described fuel tank inner fluid, every described pressure device that supplies includes by the first motor-driven first hydraulic pump, often the oil-in of described first hydraulic pump all connects described fuel tank, often the oil-out of described first hydraulic pump all connects the oil-in of described reversal valve, the actuator port of described reversal valve connects described hydraulic cylinder, the oil return opening of described reversal valve connects described fuel tank.
2. the fluid power system of planograinder according to claim 1, it is characterized in that, the control port of described reversal valve is connected with the pilot valve of the spool movement for promoting described reversal valve, the oil-in of described pilot valve is connected with by the second motor-driven second hydraulic pump, the oil-in of described second hydraulic pump connects described fuel tank, and the oil return opening of described pilot valve connects described fuel tank.
3. the fluid power system of planograinder according to claim 2, is characterized in that, is provided with the second check valve between the oil-in of described pilot valve and the oil-out of described second hydraulic pump.
4. the fluid power system of planograinder according to claim 3, is characterized in that, is provided with safety valve between the second fluid pressure line between the oil-out and described second check valve of described second hydraulic pump and described fuel tank.
5. according to the fluid power system of the planograinder in Claims 1-4 described in any one claim, it is characterized in that, between the oil-out of the oil-in of described reversal valve and often described first hydraulic pump, be equipped with the first check valve.
6. the fluid power system of planograinder according to claim 5, is characterized in that, is equipped with pilot-type relief valve between the first fluid pressure line between the oil-out and described first check valve of every described first hydraulic pump and described fuel tank.
7. according to the fluid power system of the planograinder in Claims 1-4 described in any one claim, it is characterized in that, between the oil return opening of described reversal valve and described fuel tank, be provided with counterbalance valve.
8. the fluid power system of planograinder according to claim 1, is characterized in that, described first hydraulic pump has three, and accordingly, described first motor has three.
CN201520523658.0U 2015-07-18 2015-07-18 Planogrinder's hydraulic drive system Active CN204800467U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520523658.0U CN204800467U (en) 2015-07-18 2015-07-18 Planogrinder's hydraulic drive system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520523658.0U CN204800467U (en) 2015-07-18 2015-07-18 Planogrinder's hydraulic drive system

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107984558A (en) * 2017-11-26 2018-05-04 贾建胜 A kind of wood sheet process equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107984558A (en) * 2017-11-26 2018-05-04 贾建胜 A kind of wood sheet process equipment

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CB03 Change of inventor or designer information

Inventor after: Lu Shichao

Inventor after: Li Yong

Inventor after: Pang Lili

Inventor after: Su Meiting

Inventor after: Liu Kai

Inventor after: Guo Yang

Inventor after: Zhou Mingfeng

Inventor before: Lu Shichao

Inventor before: Li Yong

Inventor before: Pang Lili

Inventor before: Su Meiting

Inventor before: Liu Kai

Inventor before: Guo Yang

Inventor before: Zhu Mingfeng

COR Change of bibliographic data