CN202898953U - Hydraulic lifting control device of driving shed of spreading machine - Google Patents

Hydraulic lifting control device of driving shed of spreading machine Download PDF

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Publication number
CN202898953U
CN202898953U CN 201220520615 CN201220520615U CN202898953U CN 202898953 U CN202898953 U CN 202898953U CN 201220520615 CN201220520615 CN 201220520615 CN 201220520615 U CN201220520615 U CN 201220520615U CN 202898953 U CN202898953 U CN 202898953U
Authority
CN
China
Prior art keywords
valve
way
hydraulic
throttle valve
way throttle
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
Application number
CN 201220520615
Other languages
Chinese (zh)
Inventor
丁奎
鲍承义
朱立峻
雷霆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Wbest Civil Construction Equipments & Services Co Ltd
Original Assignee
Xuzhou Wbest Civil Construction Equipments & Services Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xuzhou Wbest Civil Construction Equipments & Services Co Ltd filed Critical Xuzhou Wbest Civil Construction Equipments & Services Co Ltd
Priority to CN 201220520615 priority Critical patent/CN202898953U/en
Application granted granted Critical
Publication of CN202898953U publication Critical patent/CN202898953U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a hydraulic lifting control device of a driving shed of a spreading machine, and belongs to the technical field of spreading machine hydraulic control. The hydraulic lifting control device comprises a hydraulic pump, a unidirectional valve, a first unidirectional throttling valve, a second unidirectional throttling valve, a third unidirectional throttling valve, an energy accumulator, a first pressure relay, a second pressure relay, a three-position four-way manual reversing valve, a two-position two-way electromagnetic reversing valve and a pilot-type overflow valve, wherein one end of the hydraulic pump is connected with a hydraulic oil tank, and the other end of the hydraulic pump is connected with the pilot-type overflow valve and the unidirectional valve respectively; and the unidirectional valve is connected with the first pressure relay, the second pressure relay, the first unidirectional throttling valve and the port P of the three-position four-way manual reversing valve respectively. The hydraulic lifting control device has the beneficial effects of improving the lifting efficiency of the driving shed, reducing the labor intensity and realizing automatic lifting control of the driving shed.

Description

Paver canopy hydraulic lifting control device
Technical field
The utility model relates to a kind of hydraulic lifting control device, and specifically a kind of paver canopy hydraulic lifting control device belongs to Paver Hydraulic control technology field.
Background technology
Paver is the visual plant that the link table surface layer is laid, and because its chassis is crawler body, travel speed is slower, can only be transported by flat car when long distance transition operation, and is too high because of its canopy, brought very large difficulty to transportation.The method that adopts at present has pulls down canopy, and arrive the building site and reinstall again, be exactly to adopt handlance to carry out the lift adjustment of canopy in addition, these two kinds of methods are all required great effort time-consuming, affect construction speed.Can not anytime anywhere carry out to the height of canopy the control of ceiling height.
Summary of the invention
For the problem that above-mentioned prior art exists, the utility model provides a kind of paver canopy hydraulic lifting control device, can improve the lifting efficient of canopy, reduces labour intensity, realizes the automatic lifting control of canopy.
To achieve these goals, the technical solution adopted in the utility model is: a kind of paver canopy hydraulic lifting control device, comprise hydraulic pump, one way valve, the first one-way throttle valve, the second one-way throttle valve, the 3rd one-way throttle valve, accumulator, the first pressure switch, the second pressure switch, the 3-position 4-way hand-operated direction valve, bi-bit bi-pass solenoid operated directional valve and pilot operated compound relief valve, hydraulic pump one end is connected with hydraulic oil container, the other end of hydraulic pump is connected with one way valve with pilot operated compound relief valve respectively, one way valve respectively with the first pressure switch, the second pressure switch, the first one-way throttle valve is connected the P mouth and is connected with the 3-position 4-way hand-operated direction valve, the first one-way throttle valve is connected with accumulator, the A mouth of 3-position 4-way hand-operated direction valve is connected with the B mouth with the second one-way throttle valve and is connected with the 3rd one-way throttle valve, the second one-way throttle valve is connected with hoist cylinder with the 3rd one-way throttle valve, and pilot operated compound relief valve is connected with the bi-bit bi-pass solenoid operated directional valve.
Operating principle: the hydraulic pump oil suction by the pilot operated compound relief valve pressure regulation after through one way valve, when the 3-position 4-way hand-operated direction valve is in meta, this moment, the P mouth of 3-position 4-way hand-operated direction valve ended, hydraulic oil passes through the first one-way throttle valve to the accumulator fuel feeding, because this oil circuit adopts the pressure reduction control of double relay, when energy storage pressure was higher than the high pressure setting of the first pressure switch, the first pressure switch sends signal, and that the bi-bit bi-pass solenoid operated directional valve is got was electric, hydraulic pump pressure release this moment.When the force value of accumulator was lower than the setting of the second pressure switch, the second pressure switch sent signal and makes bi-bit bi-pass solenoid operated directional valve dead electricity, and this moment, hydraulic pump was reworked.
When the 3-position 4-way hand-operated direction valve is in left position duty, hydraulic oil enters the cavity of resorption of hoist cylinder through the 3rd one-way throttle valve, hydraulic oil is got back to hydraulic oil container through the second one-way throttle valve and 3-position 4-way hand-operated direction valve in the epicoele of hoist cylinder, and this moment, canopy rose; When the 3-position 4-way hand-operated direction valve is in left position duty, hydraulic oil enters the epicoele of hoist cylinder through the second one-way throttle valve, hydraulic oil is got back to hydraulic oil container through the 3rd one-way throttle valve and 3-position 4-way hand-operated direction valve in the cavity of resorption of hoist cylinder, and this moment, canopy descended.
When the engine misses state, the hydraulic oil that stores in the accumulator also can be finished the lifting of canopy through the transposition of the first one-way throttle valve and 3-position 4-way hand-operated direction valve, and the hydraulic oil that stores in the accumulator is enough finished repeatedly the lifting process of canopy.When the 3-position 4-way hand-operated direction valve was in meta, two chambeies of hoist cylinder were in closed state, thereby can carry out hydraulic stop to canopy.
The beneficial effects of the utility model are: simple to operate, easy to use, effectively improved the lifting efficient of canopy, and reduced labour intensity, realized the automatic lifting control of canopy.
Description of drawings
Fig. 1 is hydraulic circuit schematic diagram of the present utility model.
Among the figure: 1, hydraulic oil container, 2, hydraulic pump, 3, one way valve, 4, the first one-way throttle valve, 5, accumulator, the 6, first pressure switch, the 7, second pressure switch, 8,3-position 4-way hand-operated direction valve, 9, the second one-way throttle valve, the 10, the 3rd one-way throttle valve, 11, hoist cylinder, 12, pilot operated compound relief valve, 13, the bi-bit bi-pass solenoid operated directional valve.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of paver canopy hydraulic lifting control device, comprise hydraulic pump 2, one way valve 3, the first one-way throttle valve 4, the second one-way throttle valve 9, the 3rd one-way throttle valve 10, accumulator 5, the first pressure switch 6, the second pressure switch 7,3-position 4-way hand-operated direction valve 8, bi-bit bi-pass solenoid operated directional valve 13 and pilot operated compound relief valve 12, hydraulic pump 2 one ends are connected with hydraulic oil container 1, the other end of hydraulic pump 2 is connected with one way valve with pilot operated compound relief valve 12 respectively and is connected, one way valve 3 respectively with the first pressure switch 6, the second pressure switch 7, the P mouth that the first one-way throttle valve 4 is connected with the 3-position 4-way hand-operated direction valve connects, the first one-way throttle valve 4 is connected with accumulator 5, the A mouth of 3-position 4-way hand-operated direction valve 8 is connected with the B mouth with the second one-way throttle valve 9 and is connected with the 3rd one-way throttle valve 10, the second one-way throttle valve 9 is connected with hoist cylinder 11 with the 3rd one-way throttle valve 10, and pilot operated compound relief valve 12 is connected with bi-bit bi-pass solenoid operated directional valve 13.
The course of work: hydraulic pump 3 oil suctions by pilot operated compound relief valve 12 pressure regulation after through one way valve 3, when 3-position 4-way hand-operated direction valve 8 is in meta, the at this moment P mouth of 3-position 4-way hand-operated direction valve 8 cut-off, hydraulic oil passes through the first one-way throttle valve 4 to accumulator 5 fuel feeding, because this oil circuit adopts the pressure reduction control of double relay, when the pressure of accumulator 5 is higher than the high pressure setting of the first pressure switch 6, the first pressure switch 6 send signal make bi-bit bi-pass solenoid operated directional valve 13 electric, control hydraulic pump 2 pressure releases this moment.When the force value of accumulator 5 was lower than the setting of the second pressure switch 7, the second pressure switch 7 sent signal and makes bi-bit bi-pass solenoid operated directional valve 13 dead electricity, and this moment, hydraulic pump was reworked.
When 3-position 4-way hand-operated direction valve 8 is in left position duty, hydraulic oil enters the cavity of resorption of hoist cylinder 11 through the 3rd one-way throttle valve 10, hydraulic oil is got back to hydraulic oil container 1 through the second one-way throttle valve 9 and 3-position 4-way hand-operated direction valve 8 in the epicoele of hoist cylinder 11, and this moment, canopy rose; When 3-position 4-way hand-operated direction valve 8 is in left position duty, hydraulic oil enters the epicoele of hoist cylinder 11 through the second one-way throttle valve 9, hydraulic oil is got back to hydraulic oil container 1 through the 3rd one-way throttle valve 10 and 3-position 4-way hand-operated direction valve 8 in the cavity of resorption of hoist cylinder 11, and this moment, canopy descended.
When the engine misses state, the hydraulic oil of accumulator 5 interior storages also can be finished the lifting of canopy through the transposition of the first one-way throttle valve 4 and 3-position 4-way hand-operated direction valve 8, and the hydraulic oil that stores in the accumulator 5 is enough finished repeatedly the lifting process of canopy.When 3-position 4-way hand-operated direction valve 8 was in meta, two chambeies of hoist cylinder 11 were in closed state, thereby can carry out hydraulic stop to canopy.

Claims (1)

1. paver canopy hydraulic lifting control device, it is characterized in that, comprise hydraulic pump (2), one way valve (3), the first one-way throttle valve (4), the second one-way throttle valve (9), the 3rd one-way throttle valve (10), accumulator (5), the first pressure switch (6), the second pressure switch (7), 3-position 4-way hand-operated direction valve (8), bi-bit bi-pass solenoid operated directional valve (13) and pilot operated compound relief valve (12), hydraulic pump (2) one ends are connected with hydraulic oil container (1), the other end of hydraulic pump (2) is connected 3 with pilot operated compound relief valve (12) with one way valve respectively) be connected, one way valve (3) respectively with the first pressure switch (6), the second pressure switch (7), the first one-way throttle valve (4) is connected 8 with the 3-position 4-way hand-operated direction valve) the P mouth connect, the first one-way throttle valve (4) is connected with accumulator (5), the A mouth of 3-position 4-way hand-operated direction valve (8) is connected with the B mouth with the second one-way throttle valve (9) and is connected with the 3rd one-way throttle valve (10), the second one-way throttle valve (9) is connected with hoist cylinder (11) with the 3rd one-way throttle valve (10), and pilot operated compound relief valve (12) is connected with bi-bit bi-pass solenoid operated directional valve (13).
CN 201220520615 2012-10-11 2012-10-11 Hydraulic lifting control device of driving shed of spreading machine Expired - Fee Related CN202898953U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220520615 CN202898953U (en) 2012-10-11 2012-10-11 Hydraulic lifting control device of driving shed of spreading machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220520615 CN202898953U (en) 2012-10-11 2012-10-11 Hydraulic lifting control device of driving shed of spreading machine

Publications (1)

Publication Number Publication Date
CN202898953U true CN202898953U (en) 2013-04-24

Family

ID=48119643

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220520615 Expired - Fee Related CN202898953U (en) 2012-10-11 2012-10-11 Hydraulic lifting control device of driving shed of spreading machine

Country Status (1)

Country Link
CN (1) CN202898953U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102943426A (en) * 2012-10-11 2013-02-27 徐州万邦道路工程装备服务股份公司 Paver driving cab hydraulic lift control device
CN103671306A (en) * 2013-11-21 2014-03-26 中国石油化工股份有限公司 Hydraulic power device and potential energy converting and operating methods thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102943426A (en) * 2012-10-11 2013-02-27 徐州万邦道路工程装备服务股份公司 Paver driving cab hydraulic lift control device
CN103671306A (en) * 2013-11-21 2014-03-26 中国石油化工股份有限公司 Hydraulic power device and potential energy converting and operating methods thereof

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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: 20130424

Termination date: 20131011