CN104564586A - Hydraulic pump - Google Patents

Hydraulic pump Download PDF

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Publication number
CN104564586A
CN104564586A CN201410642964.6A CN201410642964A CN104564586A CN 104564586 A CN104564586 A CN 104564586A CN 201410642964 A CN201410642964 A CN 201410642964A CN 104564586 A CN104564586 A CN 104564586A
Authority
CN
China
Prior art keywords
pipeline
hydraulic pump
oil
piston
spring
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
CN201410642964.6A
Other languages
Chinese (zh)
Inventor
严志林
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.)
CHANGZHOU LONGRUN MACHINERY Co Ltd
Original Assignee
CHANGZHOU LONGRUN MACHINERY 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 CHANGZHOU LONGRUN MACHINERY Co Ltd filed Critical CHANGZHOU LONGRUN MACHINERY Co Ltd
Priority to CN201410642964.6A priority Critical patent/CN104564586A/en
Publication of CN104564586A publication Critical patent/CN104564586A/en
Pending legal-status Critical Current

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  • Reciprocating Pumps (AREA)

Abstract

The invention discloses a hydraulic pump. The hydraulic pump comprises a cam, a piston, a cylinder body, a spring, a first pipeline, a second pipeline, a first check valve and an oil cylinder, wherein one end of the piston is connected with the cam and the other end of the piston is connected with the cylinder body; the spring is arranged between the piston and the cylinder body; the spring is arranged in a cavity and the cavity is connected with the first pipeline; the first pipeline is connected with the second pipeline; the second pipeline is provided with the first check valve and the second pipeline is connected with the oil cylinder. According to the hydraulic pump disclosed by the invention, the oil tank is communicated with atmosphere so that power of the check valve on an oil inlet path is opened in an oil suction process and the hydraulic pump for realizing oil suction and oil pressing by periodic changes of a sealed volume cavity is called as a displacement pump, so that the stability of the pressure performance is good.

Description

A kind of oil hydraulic pump
Technical field
The present invention relates to mechanical-hydraulic technical field, be specifically related to a kind of oil hydraulic pump.
Background technique
In prior art, oil hydraulic pump is the dynamical element of hydraulic system, is by motor or motoring, from hydraulic oil container, sucks fluid, and mineralization pressure oil is discharged, and delivers to a kind of element of executive component.Oil hydraulic pump is divided into gear pump, plunger pump, vane pump and screw pump by structure.For hydraulic transmission provides a kind of hydraulic element of pressurized liquid, it is the one of pump.Its function is the pressure energy mechanical energy of power engine (as motor and internal-combustion engine etc.) being converted to liquid.The factor in working life affecting oil hydraulic pump is a lot, to use with some and pump the operation in the selecting of relevant first (as coupling, oil purifier etc.), trial run and run process etc. also relevant except pump design itself, the factor that manufactures are outer.The working principle of oil hydraulic pump is the change that motion brings pump chamber, thus compressed fluid makes fluid have pressure energy.
Summary of the invention
For the deficiency that prior art exists, the invention provides a kind of oil hydraulic pump of pressure good stability.
To achieve these goals, the present invention realizes by the following technical solutions:
A kind of oil hydraulic pump, it comprises cam, piston, cylinder body, spring, the first pipeline, second pipe, the first one-way valve, oil cylinder, described piston one end is connected with described cam, the described piston the other end is connected with cylinder body, arranges spring between piston and cylinder body, the cavity at spring place, cavity is connected with the first pipeline, described first pipeline is connected with second pipe, described second pipe is arranged the first one-way valve, and described second pipe is connected with oil cylinder.
Further, described first pipeline arranges the second one-way valve.
Beneficial effect of the present invention:
A kind of oil hydraulic pump of the present invention, fuel tank communicates with air, opens the power of one-way valve on in-line when this is oil suction, and this cyclically-varying by sealed volume cavity volume, the oil hydraulic pump realizing oil suction and force feed is called displacement pump, pressure good stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of oil hydraulic pump of the present invention.
Embodiment
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
As shown in Figure 1, a kind of oil hydraulic pump, it comprises cam 1, piston 2, cylinder body 3, spring 4, first pipeline 6, second pipe 7, first one-way valve 8, oil cylinder 9, described piston 2 one end is connected with described cam 1, described piston 2 the other end is connected with cylinder body 3, spring 4 is set between piston 2 and cylinder body 3, the cavity 5 at spring 4 place, cavity 5 is connected with the first pipeline 6, described first pipeline 6 is connected with second pipe 7, described second pipe 7 is arranged the first one-way valve 8, described second pipe 7 is connected with oil cylinder 9.
Described first pipeline 6 arranges the second one-way valve 9.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (4)

1. an oil hydraulic pump, is characterized in that: it comprises cam, piston, cylinder body, spring, the first pipeline, second pipe, the first one-way valve, oil cylinder; Described piston one end is connected with described cam, and the described piston the other end is connected with cylinder body, arranges spring between described piston and cylinder body, the cavity at described spring place, and described cavity is connected with the first pipeline, and described first pipeline is connected with second pipe.
2. oil hydraulic pump according to claim 1, is characterized in that: described second pipe is arranged the first one-way valve.
3. oil hydraulic pump according to claim 1, is characterized in that: described second pipe is connected with oil cylinder.
4. oil hydraulic pump according to claim 1, is characterized in that: described first pipeline arranges the second one-way valve.
CN201410642964.6A 2014-11-14 2014-11-14 Hydraulic pump Pending CN104564586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410642964.6A CN104564586A (en) 2014-11-14 2014-11-14 Hydraulic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410642964.6A CN104564586A (en) 2014-11-14 2014-11-14 Hydraulic pump

Publications (1)

Publication Number Publication Date
CN104564586A true CN104564586A (en) 2015-04-29

Family

ID=53081451

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410642964.6A Pending CN104564586A (en) 2014-11-14 2014-11-14 Hydraulic pump

Country Status (1)

Country Link
CN (1) CN104564586A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107401437A (en) * 2017-07-05 2017-11-28 吉媛 Machine oil filling device
CN108591054A (en) * 2018-04-13 2018-09-28 福建绿世界机械设备有限公司 Side valve type positive displacement pump with cam mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201757042U (en) * 2010-07-30 2011-03-09 冯振强 Reciprocating plunger pump
CN102588239A (en) * 2012-02-29 2012-07-18 太仓市金鹿电镀有限公司 Hydraulic pump
CN202451383U (en) * 2012-02-29 2012-09-26 太仓市金鹿电镀有限公司 Hydraulic pump
CN203476689U (en) * 2013-08-07 2014-03-12 枞阳县高瑶机械设备有限公司 Volumetric hydraulic pump
CN204344396U (en) * 2014-11-14 2015-05-20 常州市龙润机械有限公司 A kind of oil hydraulic pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201757042U (en) * 2010-07-30 2011-03-09 冯振强 Reciprocating plunger pump
CN102588239A (en) * 2012-02-29 2012-07-18 太仓市金鹿电镀有限公司 Hydraulic pump
CN202451383U (en) * 2012-02-29 2012-09-26 太仓市金鹿电镀有限公司 Hydraulic pump
CN203476689U (en) * 2013-08-07 2014-03-12 枞阳县高瑶机械设备有限公司 Volumetric hydraulic pump
CN204344396U (en) * 2014-11-14 2015-05-20 常州市龙润机械有限公司 A kind of oil hydraulic pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107401437A (en) * 2017-07-05 2017-11-28 吉媛 Machine oil filling device
CN108591054A (en) * 2018-04-13 2018-09-28 福建绿世界机械设备有限公司 Side valve type positive displacement pump with cam mechanism

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Application publication date: 20150429

WD01 Invention patent application deemed withdrawn after publication