CN103133341A - High-pressure two-way rotary gear pump - Google Patents
High-pressure two-way rotary gear pump Download PDFInfo
- Publication number
- CN103133341A CN103133341A CN2013100792082A CN201310079208A CN103133341A CN 103133341 A CN103133341 A CN 103133341A CN 2013100792082 A CN2013100792082 A CN 2013100792082A CN 201310079208 A CN201310079208 A CN 201310079208A CN 103133341 A CN103133341 A CN 103133341A
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- gear shaft
- protecgulum
- driving gear
- pump housing
- shaft
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Abstract
The invention relates to a high-pressure two-way rotary gear pump which comprises a driving gear shaft, a front cover, a shaft seal, a screw plug, side plate components, a rear pump body, a one-way valve and a driven gear shaft, wherein the front cover is provided with the screw plug and the one-way valve; the front cover is fixed with the rear pump body by a fastener; the rear pump body is internally provided with the driving gear shaft and the driven gear shaft; the driving gear shaft is meshed with the driven gear shaft by a gear; the driving gear shaft is provided with the shaft seal; the side plate components are respectively arranged at the left side and the right side of gear sections of the driving gear shaft and the driven gear shaft; the mounting end surface of the front cover is provided with a mounting groove; the mounting end surface of the rear pump body is provided with a mounting convex arris; and the mounting convex arris and the mounting groove are in interference fit. The high-pressure two-way rotary gear pump solves the problem of deformation caused by insufficient strength when only a locating pin is used for locating, so that the pressure of the pump is improved, and the service life of the pump is prolonged.
Description
Technical field
The present invention relates to a kind of gear pump, especially a kind of high-voltage bidirectional rotary gear pump.
Background technique
At present, protecgulum, intermediate and the bonnet that gear pump case structure commonly used mainly contains 3 stops is connected or the pump housing of two-part is connected with pump cover, inside is comprised of intermeshing main driven gear axle and side plate, locates by locating stud between each housing and links together by fastening piece.Current, along with market requires to improve constantly to gear pump delivery and pressure, the intensity of each component itself, the sealing configuration of side plate and the component distortion that increase causes with pressure due to discharge capacity have just become to affect a key factor of gear pump life-span and efficient, and noise, the weight reduction of lowering simultaneously gear pump have also become a key factor of customer selecting.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of more reliable high-voltage bidirectional rotary gear pump that also can increase the service life of join strength, performance that can effectively strengthen between pump housing pump cover is provided.
According to technological scheme provided by the invention, described high-voltage bidirectional rotary gear pump comprises driving gear shaft, protecgulum, shaft seal, screw plug, lateral plate component, the rear pump housing, one-way valve and driven gear shaft.Screw plug and one-way valve are installed on described protecgulum, protecgulum and the rear pump housing are fixed by fastening piece, be equipped with driving gear shaft and driven gear shaft in the rear pump housing, driving gear shaft and driven gear shaft are intermeshing by gear, shaft seal is installed on driving gear shaft, described lateral plate component is arranged on the left and right sides of driving gear shaft and driven gear shaft gear segment, offer the installation groove on the installation end face of protecgulum, be provided with the installation fin on the installation end face of the rear pump housing, fin be installed be interference fit with the installation groove.
Described lateral plate component comprises symmetrically arranged side plate body, seal ring and back-up ring, is equipped with seal ring in side plate dignity in the end face groove of protecgulum or the rear pump housing, is equipped with back-up ring above seal ring.
Described installation fin, the length direction that groove is installed all are vertical setting with the axis of driving gear shaft.
Offer the protecgulum positioning pin hole on the installation end face of protecgulum, pump housing positioning pin hole after being provided with on the installation end face of the rear pump housing is equipped with locating stud in protecgulum positioning pin hole and rear pump housing positioning pin hole.
On described driving gear shaft and driven gear shaft, pitch wheel is 13 gears.
Be provided with two one-way valves in protecgulum, two one-way valves are symmetrical set as symmetrical center line is take the axis of driving gear shaft.
The present invention has effectively solved and has only depended on the strength deficiency in locating stud when location to cause the problem of distortion, thereby can improve the pressure of pump, extends pump working life.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the sectional view of the A-A of Fig. 1.
Fig. 3 is the sectional view of the B-B of Fig. 1.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
this high-voltage bidirectional rotary gear pump, comprise driving gear shaft 1, protecgulum 2, shaft seal 3, screw plug 4, lateral plate component 6, the rear pump housing 7, one-way valve 8 and driven gear shaft 9, screw plug 4 and one-way valve 8 are installed on protecgulum 2, protecgulum 2 is fixed by fastening piece with the rear pump housing 7, be equipped with driving gear shaft 1 and driven gear shaft 9 in the rear pump housing 7, driving gear shaft 1 is intermeshing by gear with driven gear shaft 9, shaft seal 3 is installed on driving gear shaft 1, described lateral plate component 6 is arranged on the left and right sides of driving gear shaft 1 and driven gear shaft 9 gear segments, offer on the installation end face of protecgulum 2 groove 10 is installed, be provided with on the installation end face of the rear pump housing 7 fin 11 is installed, fin 11 is installed is interference fit with installation groove 10.
Described lateral plate component 6 comprises symmetrically arranged side plate body, seal ring and back-up ring, is equipped with seal ring in side plate dignity in the end face groove of protecgulum 2 or the rear pump housing 7, is equipped with back-up ring above seal ring.
Described installation fin 11, the length direction that groove 10 is installed all are vertical setting with the axis of driving gear shaft 1.
Offer the protecgulum positioning pin hole on the installation end face of protecgulum 2, pump housing positioning pin hole after being provided with on the installation end face of the rear pump housing 7 is equipped with locating stud 5 in protecgulum positioning pin hole and rear pump housing positioning pin hole.
On described driving gear shaft 1 and driven gear shaft 9, pitch wheel is 13 gears.
Be provided with 8, two one-way valves 8 of two one-way valves and be symmetrical set as symmetrical center line is take the axis of driving gear shaft 1 in protecgulum 2, connect by the first oil groove 12 between two one-way valves 8.
Two one-way valves 8 are housed on protecgulum 2 of the present invention, first oil groove 12 of low pressure oil before by one-way valve 8 and oil sealing communicates, and the first oil groove 12 connects the front end of driving gear shaft 1 and driven gear shaft 9, the two ends of driven gear shaft 9 are connected by the through hole at center, and the rear end of driving gear shaft 1 and driven gear shaft 9 is connected by the second oil groove 13.The center hole of the first oil groove 12, driven gear shaft 9 and the second oil groove 13 make the mutual balance of pressure at driving gear shaft 1 and driven gear shaft 9 two ends, and lubricate the diameter of axle of main driven gear axle with low pressure oil.
Owing to having adopted two symmetrical one-way valves 8, symmetrical lateral plate component 6 and the oil inlet and outlet design that is arranged symmetrically with, make gear pump to rotate by positive and negative both direction.Simultaneously, four hydraulic fluid ports arranging simultaneously of side and afterbody can be convenient to the client and select easily hydraulic fluid port to install according to different needs.In addition, remove the screw plug 4 of assembling on protecgulum 2, pump is used as motor.When using as motor, the screw plug hole on protecgulum 2 can be used as unloading port and uses.
The gear of intermeshing driving gear shaft 1 and driven gear shaft 9 adopts 13 teeth designs, can noise-decreasing, reduce simultaneously pressure and flow pulsation, and make the action of executive component more steady.
The installation fin 11 of the rear pump housing 7 in the present invention and the installation groove 10 of pump cover 2 are located pump housing pump cover at whole width direction fully by interference fit, effectively make up the pump housing pump cover distortion that only depends on the locating stud location, made gear pump can bear higher working pressure.The ring structure that adds particular design can make the rated pressure of gear pump reach 30Mpa.
Claims (6)
1. high-voltage bidirectional rotary gear pump, comprise driving gear shaft (1), protecgulum (2), shaft seal (3), screw plug (4), lateral plate component (6), the rear pump housing (7), one-way valve (8) and driven gear shaft (9), screw plug (4) and one-way valve (8) are installed on protecgulum (2), protecgulum (2) is fixed by fastening piece with the rear pump housing (7), be equipped with driving gear shaft (1) and driven gear shaft (9) in the rear pump housing (7), driving gear shaft (1) is intermeshing by gear with driven gear shaft (9), shaft seal (3) and lateral plate component (6) are installed on driving gear shaft (1), described lateral plate component (6) is arranged on the left and right sides of driving gear shaft (1) and driven gear shaft (9) gear segment, it is characterized in that: offer on the installation end face of protecgulum (2) groove (10) is installed, be provided with on the installation end face of the rear pump housing (7) fin (11) is installed, fin (11) is installed is interference fit with installation groove (10).
2. high-voltage bidirectional rotary gear pump as claimed in claim 1, it is characterized in that: described lateral plate component (6) comprises symmetrically arranged side plate body, seal ring and back-up ring, on the end face of protecgulum (2) or the rear pump housing (7), back-up ring is installed in side plate dignity, is socketed with seal ring on the cylindrical of side plate body.
3. high-voltage bidirectional rotary gear pump as claimed in claim 1 is characterized in that: described installation fin (11), the length direction that groove (10) is installed all are vertical setting with the axis of driving gear shaft (1).
4. high-voltage bidirectional rotary gear pump as claimed in claim 1, it is characterized in that: offer the protecgulum positioning pin hole on the installation end face of protecgulum (2), be provided with rear pump housing positioning pin hole on the installation end face of the rear pump housing (7), in protecgulum positioning pin hole and rear pump housing positioning pin hole, locating stud (5) be installed.
5. high-voltage bidirectional rotary gear pump as claimed in claim 1 is characterized in that: described driving gear shaft (1) is 13 gears with the upper pitch wheel of driven gear shaft (9).
6. high-voltage bidirectional rotary gear pump as claimed in claim 1, it is characterized in that: be provided with two one-way valves (8) in protecgulum (2), two one-way valves (8) are symmetrical set as symmetrical center line is take the axis of driving gear shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100792082A CN103133341A (en) | 2013-03-13 | 2013-03-13 | High-pressure two-way rotary gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100792082A CN103133341A (en) | 2013-03-13 | 2013-03-13 | High-pressure two-way rotary gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103133341A true CN103133341A (en) | 2013-06-05 |
Family
ID=48493641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100792082A Pending CN103133341A (en) | 2013-03-13 | 2013-03-13 | High-pressure two-way rotary gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103133341A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370564A (en) * | 2015-11-24 | 2016-03-02 | 徐州科源液压股份有限公司 | Gear pump front cover with overflow protecting function |
| CN106523357A (en) * | 2016-12-01 | 2017-03-22 | 徐州科源液压股份有限公司 | Bearing lubricating structure of two-way gear oil pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2230833Y (en) * | 1994-12-12 | 1996-07-10 | 青州液压件厂 | Gear pump with pressure bearing inlet |
| JPH09144667A (en) * | 1995-11-22 | 1997-06-03 | Shimadzu Corp | Solution supplying gear pump |
| CN201412326Y (en) * | 2009-05-27 | 2010-02-24 | 刘兴杰 | Double-motor hydraulic pump |
| CN202417931U (en) * | 2011-12-08 | 2012-09-05 | 辽宁太克液压机械集团有限公司 | Double-rotating-direction gear pump |
| CN203130493U (en) * | 2013-03-13 | 2013-08-14 | 无锡英特帕普威孚液压有限责任公司 | High-pressure bilateral rotation gear pump |
-
2013
- 2013-03-13 CN CN2013100792082A patent/CN103133341A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2230833Y (en) * | 1994-12-12 | 1996-07-10 | 青州液压件厂 | Gear pump with pressure bearing inlet |
| JPH09144667A (en) * | 1995-11-22 | 1997-06-03 | Shimadzu Corp | Solution supplying gear pump |
| CN201412326Y (en) * | 2009-05-27 | 2010-02-24 | 刘兴杰 | Double-motor hydraulic pump |
| CN202417931U (en) * | 2011-12-08 | 2012-09-05 | 辽宁太克液压机械集团有限公司 | Double-rotating-direction gear pump |
| CN203130493U (en) * | 2013-03-13 | 2013-08-14 | 无锡英特帕普威孚液压有限责任公司 | High-pressure bilateral rotation gear pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370564A (en) * | 2015-11-24 | 2016-03-02 | 徐州科源液压股份有限公司 | Gear pump front cover with overflow protecting function |
| CN106523357A (en) * | 2016-12-01 | 2017-03-22 | 徐州科源液压股份有限公司 | Bearing lubricating structure of two-way gear oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130605 |