CN105332975A - Double-pump hydraulic system - Google Patents

Double-pump hydraulic system Download PDF

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Publication number
CN105332975A
CN105332975A CN201510837500.5A CN201510837500A CN105332975A CN 105332975 A CN105332975 A CN 105332975A CN 201510837500 A CN201510837500 A CN 201510837500A CN 105332975 A CN105332975 A CN 105332975A
Authority
CN
China
Prior art keywords
pump
hydraulic pump
hydraulic
oil hydraulic
motor
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.)
Pending
Application number
CN201510837500.5A
Other languages
Chinese (zh)
Inventor
李旭俊
韦民翔
梁冲
蒋存宝
罗继宗
周丹云
覃荣莹
马恒军
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.)
Sinotruk Liuzhou Yunli Special Purpose Vehicle Co Ltd
Original Assignee
Sinotruk Liuzhou Yunli Special Purpose Vehicle 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 Sinotruk Liuzhou Yunli Special Purpose Vehicle Co Ltd filed Critical Sinotruk Liuzhou Yunli Special Purpose Vehicle Co Ltd
Priority to CN201510837500.5A priority Critical patent/CN105332975A/en
Publication of CN105332975A publication Critical patent/CN105332975A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a double-pump hydraulic system which comprises an engine and a first hydraulic pump. A power takeoff is connected between the engine and the first hydraulic pump. The double-pump hydraulic system further comprises a second hydraulic pump. The second hydraulic pump is connected with the first hydraulic pump through an oil way in parallel. The second hydraulic pump is connected with a power supply. The double-pump hydraulic system is simple and reasonable in structural design; the two hydraulic pumps are driven through two power sources, namely the engine and a motor, and therefore the use quantity of fuel for a special automobile can be reduced, and losses of the engine are reduced; besides, the effects of energy conservation and emission reduction can be achieved through electric driving.

Description

A kind of pump hydraulic system
Technical field
The present invention relates to special purpose vehicle manufacturing technology field, be specifically related to a kind of refuse collection vehicle pump hydraulic system.
Background technique
At present, compression type garbage truck is when carrying out the operation such as garbage collection, compression, and each motion action is generally carry out driving gear pump by fuel as power, thus drive hydraulic system principle carries out work, such driving mode, is only suitable for short time operation.But, because garbage collection compression operation is frequent, intermittently, filling a car sometimes needs 3-4 hour, and above-mentioned hydraulic driving mode oil consumption is more, when operation field is away from oiling website distance, refuel just more difficult, often in operation process because stopping discharging without fuel oil, or cannot to use because vehicle discharging has consumed fuel oil, bring a lot of troubles to driver, then incur loss through delay the work had influence on below.
Summary of the invention
For solving the technical problem existed in prior art, the invention provides a kind of pump hydraulic system of effective solution prior art problem.
Technique effect of the present invention is achieved through the following technical solutions:
A kind of pump hydraulic system, comprises motor and the first oil hydraulic pump, between described motor and the first oil hydraulic pump, be connected with power take-off, also comprise the second oil hydraulic pump, described second oil hydraulic pump and described first oil hydraulic pump are connected in parallel by oil circuit, and described second oil hydraulic pump is connected with power supply.
Further, described power supply is motor.
Preferably, described motor is connected with electric control cubicle.
Preferably, described first oil hydraulic pump and described second oil hydraulic pump are provided with one-way valve.
Preferably, described one-way valve is all arranged on described first oil hydraulic pump and the second oil hydraulic pump oil outlet.
Further, described power take-off is provided with automatically controlled Pneumatic valve.
The invention has the beneficial effects as follows:
Pump hydraulic system disclosed in this invention, structural design advantages of simple, is driven oil hydraulic pump by motor and motor two kinds of power sources, the fuel can saving special purpose vehicle uses, reduce engine wear, and by electric drive, the effect of energy-saving and emission-reduction can be realized.
Accompanying drawing explanation
Fig. 1 is pump hydraulic system structural representation disclosed by the invention.
Embodiment
Technical solution of the present invention is introduced in detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of pump hydraulic system, comprise motor and the first oil hydraulic pump 1, between described motor and the first oil hydraulic pump 1, be connected with power take-off 3, described motor is automobile chassis motor, and described power take-off 3 is chassis power take-off, described power take-off is connected with the power taking mouth on engine mission, the torque axis that motor exports is turned to the driving force of oil hydraulic pump.Described power take-off is provided with automatically controlled Pneumatic valve, for controlling power take-off.
This hydraulic system also comprises the second oil hydraulic pump 4, and described second oil hydraulic pump 4 is connected in parallel by oil circuit with described first oil hydraulic pump 1, and described second oil hydraulic pump 4 is connected with power supply.In the present embodiment, described power supply is motor 6, and described motor 6 is three phase electric machine, and motor 6 exports 380v power source driving second oil hydraulic pump 4 and carries out work.Meanwhile, in order to control the working state of motor 6, on motor 6, be also connected with electric control cubicle 7, described electric control cubicle 7 is mainly used in carrying out switch control rule to motor 6, and clockwise and anticlockwise controls, overload protection, overtemperature protection, and continuation of insurance is protected mutually.
The oil outlet of the first oil hydraulic pump 1 is provided with one-way valve 2, the oil outlet of the second oil hydraulic pump 4 is provided with one-way valve 5, two one-way valves play the effect preventing two oil hydraulic pumps from mutually disturbing.Whole oil circuit is communicated with hydraulic oil container 8.
In the present system, when motor 6 works, 380V plant-grid connection second oil hydraulic pump 4, do not need automobile chassis engine operation output torque, drive the second oil hydraulic pump 4 can make upper installation action by motor 6, the first oil hydraulic pump 1 be now connected with chassis does not work, and realizes zero-emission; When motor 6 does not work, when not having power supply, automobile chassis engine operation, drives the first oil hydraulic pump 1 to work by the power take-off 3 be arranged on automobile chassis engine mission, and then filling work on driving, the second oil hydraulic pump 4 be now connected with motor 6 does not work.That is: the first oil hydraulic pump 1 of driving of the second oil hydraulic pump 4 of driving of motor 6 and engine in situ is for being installed in parallel.Motor 6 connect the second oil hydraulic pump 4 do not have electric current by time be idle; First oil hydraulic pump 1 is controlled by Pneumatic valve automatically controlled on chassis power take-off 3, and when engine in situ is not activated, the first oil hydraulic pump 1 can not work.
Therefore, although previous embodiment is to invention has been detailed description, for a person skilled in the art, it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (6)

1. a pump hydraulic system, comprise motor and the first oil hydraulic pump, between described motor and the first oil hydraulic pump, be connected with power take-off, it is characterized in that: also comprise the second oil hydraulic pump, described second oil hydraulic pump and described first oil hydraulic pump are connected in parallel by oil circuit, and described second oil hydraulic pump is connected with power supply.
2. a kind of pump hydraulic system according to claim 1, is characterized in that: described power supply is motor.
3. a kind of pump hydraulic system according to claim 2, is characterized in that: described motor is connected with electric control cubicle.
4. a kind of pump hydraulic system according to claim 1, is characterized in that: described first oil hydraulic pump and described second oil hydraulic pump are provided with one-way valve.
5. a kind of pump hydraulic system according to claim 4, is characterized in that: described one-way valve is all arranged on described first oil hydraulic pump and the second oil hydraulic pump oil outlet.
6. a kind of pump hydraulic system according to claim 1, is characterized in that: on described power take-off, be provided with automatically controlled Pneumatic valve.
CN201510837500.5A 2015-11-26 2015-11-26 Double-pump hydraulic system Pending CN105332975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510837500.5A CN105332975A (en) 2015-11-26 2015-11-26 Double-pump hydraulic system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510837500.5A CN105332975A (en) 2015-11-26 2015-11-26 Double-pump hydraulic system

Publications (1)

Publication Number Publication Date
CN105332975A true CN105332975A (en) 2016-02-17

Family

ID=55283694

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510837500.5A Pending CN105332975A (en) 2015-11-26 2015-11-26 Double-pump hydraulic system

Country Status (1)

Country Link
CN (1) CN105332975A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812926A (en) * 2017-02-14 2017-06-09 西安法士特汽车传动有限公司 A kind of speed changer pump hydraulic system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2784385Y (en) * 2004-12-07 2006-05-31 张兴营 Oil and electricity dual-purpose crane for automobiles
CN202337210U (en) * 2011-11-15 2012-07-18 中国重汽集团柳州运力专用汽车有限公司 Double dynamical power take-off device of air compressor
CN205136239U (en) * 2015-11-26 2016-04-06 中国重汽集团柳州运力专用汽车有限公司 Two pump hydraulic system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2784385Y (en) * 2004-12-07 2006-05-31 张兴营 Oil and electricity dual-purpose crane for automobiles
CN202337210U (en) * 2011-11-15 2012-07-18 中国重汽集团柳州运力专用汽车有限公司 Double dynamical power take-off device of air compressor
CN205136239U (en) * 2015-11-26 2016-04-06 中国重汽集团柳州运力专用汽车有限公司 Two pump hydraulic system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812926A (en) * 2017-02-14 2017-06-09 西安法士特汽车传动有限公司 A kind of speed changer pump hydraulic system

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C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20160217

RJ01 Rejection of invention patent application after publication