CN101655087A - Gear oil pump with low noise - Google Patents

Gear oil pump with low noise Download PDF

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Publication number
CN101655087A
CN101655087A CN200910104671A CN200910104671A CN101655087A CN 101655087 A CN101655087 A CN 101655087A CN 200910104671 A CN200910104671 A CN 200910104671A CN 200910104671 A CN200910104671 A CN 200910104671A CN 101655087 A CN101655087 A CN 101655087A
Authority
CN
China
Prior art keywords
tooth
gear
oil pump
low noise
elasitic layer
Prior art date
Application number
CN200910104671A
Other languages
Chinese (zh)
Inventor
唐倩
徐俊
王晓琴
张元勋
Original Assignee
重庆大学
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 重庆大学 filed Critical 重庆大学
Priority to CN200910104671A priority Critical patent/CN101655087A/en
Publication of CN101655087A publication Critical patent/CN101655087A/en

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Abstract

The invention discloses a gear oil pump with low noise, comprising a pump cylinder and two gears which are arranged in the pump cylinder and are meshed with each other, and the tooth surfaces of the two gears are fixedly covered by an elastic layer. The tooth surface of the invention is covered by the elastic layer, thus effectively buffering the meshing impact of the gear meshing pair, being capable of reducing the noise generated by meshing in operation with good meshing leak tightness, ensuring stable pump discharge pressure and flow, and improving transmission and working efficiency; meanwhile, the gear elastic layer can be replaced after abrasion, the maintenance is convenient and simple and the use cost is saved.

Description

Gear oil pump with low noise
Technical field
The present invention relates to a kind of gear pump, particularly a kind of gear oil pump with low noise.
Background technique
Gear pump is to rely between pumping cylinder and engaging gear formed swept volume to change and move the rotary pump of carrying liquid or making it supercharging.Comprise a pair of pitch wheel and pumping cylinder, be divided into suction chamber and discharge side by the gear engagement pair in the pumping cylinder; Gear pump is applicable to the lubricity liquid that the transport viscosity scope is bigger, and is simple and compact for structure, easy to manufacture, easy to maintenance, and suction capacity is arranged.Thereby Motor Vehicle lubricant oil generally adopts the gear oil pump fuel feeding to be lubricated.
In the prior art, intermeshed gear is with having sliding friction between the same Surface of action of transmission engaging gear in the gear oil pump, and impulsive load is arranged during running, thereby bigger noise arranged inevitably, simultaneously, because the existence of above problem causes the flow of gear oil pump and pressure bigger pulsation to occur, influence the normal lubricated of operating motor vehicles parts, thereby influence the working life of each running gear.
Along with science and technology development, the Motor Vehicle noise has become important environmental pollution, therefore, need a kind of gear oil pump, the noise that engagement produces in the time of can reducing running makes delivery side of pump pressure and flow steady, guarantee the normal lubricated of each running gear, be beneficial to the working life of improving each parts, reduce the operation and maintenance cost, increase work efficiency.
Summary of the invention
In view of this, purpose of the present invention provides a kind of gear oil pump with low noise, and the noise that engagement produces in the time of can reducing running makes delivery side of pump pressure and flow steady, improves transmission and working efficiency.
Gear oil pump with low noise of the present invention comprises pumping cylinder and is positioned at intermeshing two gears of pumping cylinder, the fixing elasitic layer that covers of the flank of tooth of described two gears.
Further, the material of described elasitic layer is a resin base elasticity oil resistant high-abrasive material;
Further, the material of described elasitic layer is a filled polytetrafluoroethylene;
Further, described filled polytetrafluoroethylene adds metallic dust;
Further, the also fixing elasitic layer that covers of the tooth top of described gear and tooth root, the elasitic layer of the elasitic layer of the flank of tooth and tooth top and tooth root is connected as a single entity;
Further, described elasitic layer is covered in tooth top, tooth root and the flank of tooth of gear by the mode Gu Ding of cast;
Further, the gear teeth of described gear are circular-arc tooth surface.
Beneficial effect of the present invention: gear oil pump with low noise of the present invention, the flank of tooth covers elasitic layer, effectively the mesh impact of buffer gear cold engagement pair, the noise that engagement produces in the time of can reducing running, engages and seals is good, makes delivery side of pump pressure and flow steady, improves transmission and working efficiency; Simultaneously, can change after the gear elastic layer wearing and tearing, easy to maintenance simple, save user cost.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Accompanying drawing is a structural representation of the present invention.
Embodiment
Accompanying drawing is a structural representation of the present invention, and as shown in the figure: the gear oil pump with low noise of present embodiment comprises pumping cylinder 3 and is positioned at pumping cylinder 3 intermeshing two gears 1, the fixing elasitic layer 2 that covers of the flank of tooth of described two gears 1.
In the present embodiment, the material of described elasitic layer 2 is a filled polytetrafluoroethylene; Oil resistant, wear resistance are good, and have self-lubricating property, are applicable to as the Motor Vehicle lubricating pump.
In the present embodiment, described filled polytetrafluoroethylene adds metallic dust, further increases wear resistance, is beneficial to the working life of improving oil pump.
Certainly, the material of described elasitic layer 2 is a resin base elasticity oil resistant high-abrasive material; Have higher intensity, improve the ability of elasitic layer opposing impulsive load, can reach goal of the invention equally.
In the present embodiment, the also fixing elasitic layer 2 that covers of the tooth top of described gear 1 and tooth root, the elasitic layer of the elasitic layer of the flank of tooth and tooth top and tooth root is connected as a single entity; Be beneficial to further reduction noise, simultaneously, elasitic layer be connected as a single entity, be beneficial to the fixing of elasitic layer, the discord metal flank of tooth, tooth top and tooth root generation slippage, the working life of assurance elasitic layer.
In the present embodiment, described elasitic layer 2 is covered in tooth top, tooth root and the flank of tooth of gear by the mode Gu Ding of cast; Technology is simple, reduces fabricating cost.
In the present embodiment, the gear teeth of described gear 1 are circular-arc tooth surface, are beneficial to the sliding friction that reduces between the mesh tooth face, further reduce to mesh noise, simultaneously, prolong the working life of elasitic layer.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (7)

1. a gear oil pump with low noise comprises pumping cylinder and is positioned at intermeshing two gears of pumping cylinder, it is characterized in that: the fixing elasitic layer that covers of the flank of tooth of described two gears.
2. gear oil pump with low noise according to claim 1 is characterized in that: the material of described elasitic layer is a resin base elasticity oil resistant high-abrasive material.
3. gear oil pump with low noise according to claim 1 is characterized in that: the material of described elasitic layer is a filled polytetrafluoroethylene.
4. gear oil pump with low noise according to claim 3 is characterized in that: described filled polytetrafluoroethylene adds metallic dust.
5. according to the described gear oil pump with low noise of the arbitrary claim of claim 1 to 4, it is characterized in that: the also fixing elasitic layer that covers of the tooth top of described gear and tooth root, the elasitic layer of the elasitic layer of the flank of tooth and tooth top and tooth root is connected as a single entity.
6. gear oil pump with low noise according to claim 5 is characterized in that: described elasitic layer is covered in tooth top, tooth root and the flank of tooth of gear by the mode Gu Ding of cast.
7. gear oil pump with low noise according to claim 6 is characterized in that: the gear teeth of described gear are circular-arc tooth surface.
CN200910104671A 2009-08-21 2009-08-21 Gear oil pump with low noise CN101655087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910104671A CN101655087A (en) 2009-08-21 2009-08-21 Gear oil pump with low noise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910104671A CN101655087A (en) 2009-08-21 2009-08-21 Gear oil pump with low noise

Publications (1)

Publication Number Publication Date
CN101655087A true CN101655087A (en) 2010-02-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910104671A CN101655087A (en) 2009-08-21 2009-08-21 Gear oil pump with low noise

Country Status (1)

Country Link
CN (1) CN101655087A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994691A (en) * 2010-09-30 2011-03-30 张良 Gear pump liquid supercharging equipment, and production process and application thereof
CN102654185A (en) * 2011-03-02 2012-09-05 西门子公司 Gear wheel with replaceable teeth
CN104481870A (en) * 2014-12-06 2015-04-01 无锡高卓流体设备有限公司 High-performance pump body of rotor pump
CN106246536A (en) * 2016-08-19 2016-12-21 长安大学 A kind of gear pump with variable capacity and method of work
US10294936B2 (en) 2014-04-22 2019-05-21 Project Phoenix, Llc. Fluid delivery system with a shaft having a through-passage
US10465721B2 (en) 2014-03-25 2019-11-05 Project Phoenix, LLC System to pump fluid and control thereof
US10539134B2 (en) 2014-10-06 2020-01-21 Project Phoenix, LLC Linear actuator assembly and system
US10544810B2 (en) 2014-06-02 2020-01-28 Project Phoenix, LLC Linear actuator assembly and system
US10544861B2 (en) 2014-06-02 2020-01-28 Project Phoenix, LLC Hydrostatic transmission assembly and system
US10598176B2 (en) 2014-07-22 2020-03-24 Project Phoenix, LLC External gear pump integrated with two independently driven prime movers
US10677352B2 (en) 2014-10-20 2020-06-09 Project Phoenix, LLC Hydrostatic transmission assembly and system
US10808732B2 (en) 2014-09-23 2020-10-20 Project Phoenix, LLC System to pump fluid and control thereof
US10865788B2 (en) 2015-09-02 2020-12-15 Project Phoenix, LLC System to pump fluid and control thereof

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994691A (en) * 2010-09-30 2011-03-30 张良 Gear pump liquid supercharging equipment, and production process and application thereof
CN102654185A (en) * 2011-03-02 2012-09-05 西门子公司 Gear wheel with replaceable teeth
US10465721B2 (en) 2014-03-25 2019-11-05 Project Phoenix, LLC System to pump fluid and control thereof
US10294936B2 (en) 2014-04-22 2019-05-21 Project Phoenix, Llc. Fluid delivery system with a shaft having a through-passage
US10544810B2 (en) 2014-06-02 2020-01-28 Project Phoenix, LLC Linear actuator assembly and system
US10738799B2 (en) 2014-06-02 2020-08-11 Project Phoenix, LLC Linear actuator assembly and system
US10544861B2 (en) 2014-06-02 2020-01-28 Project Phoenix, LLC Hydrostatic transmission assembly and system
US10598176B2 (en) 2014-07-22 2020-03-24 Project Phoenix, LLC External gear pump integrated with two independently driven prime movers
US10808732B2 (en) 2014-09-23 2020-10-20 Project Phoenix, LLC System to pump fluid and control thereof
US10539134B2 (en) 2014-10-06 2020-01-21 Project Phoenix, LLC Linear actuator assembly and system
US10677352B2 (en) 2014-10-20 2020-06-09 Project Phoenix, LLC Hydrostatic transmission assembly and system
CN104481870A (en) * 2014-12-06 2015-04-01 无锡高卓流体设备有限公司 High-performance pump body of rotor pump
US10865788B2 (en) 2015-09-02 2020-12-15 Project Phoenix, LLC System to pump fluid and control thereof
CN106246536B (en) * 2016-08-19 2018-06-19 长安大学 A kind of gear pump with variable capacity and method of work
CN106246536A (en) * 2016-08-19 2016-12-21 长安大学 A kind of gear pump with variable capacity and method of work

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Open date: 20100224