CN103742407A - Anti-loosening gear pump - Google Patents
Anti-loosening gear pump Download PDFInfo
- Publication number
- CN103742407A CN103742407A CN201310715891.4A CN201310715891A CN103742407A CN 103742407 A CN103742407 A CN 103742407A CN 201310715891 A CN201310715891 A CN 201310715891A CN 103742407 A CN103742407 A CN 103742407A
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- CN
- China
- Prior art keywords
- gear
- pump
- loosening
- pump housing
- bonnet
- Prior art date
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Abstract
The invention belongs to the technical field of positive displacement pumps, and discloses an anti-loosening gear pump which comprises a pump body, a front cover, a back cover, a gear 1 and a gear 2, wherein the front cover and back cover are fixed through a fastening bolt; the joint between the front cover and back cover is provided with a seal ring; the gear 2 and gear 1 are connected in a mesh mode; the pump body is divided into a suction chamber and a discharge chamber which are separated by the mesh line of the gear 1 and gear 2; the back cover is fixed with a motor; and the gear 1 is arranged on a main shaft of the motor. The fastening bolt is provided with an outwardly convex external thread. The pump body is provided with an internal thread through hole matched with the fastening bolt, and one side of the through hole internal thread is provided with an inwardly concave cambered surface. The outlet of the pump body is connected with a safety valve. The gear pump has the advantages of simple structure and favorable sealability.
Description
Technical field
The invention belongs to displacement pump field, be specifically related to a kind of anti-loosening wheel pump.
Background technique
Gear pump is a kind of power tool of pumping fluid, because having the advantage of the aspects such as price, reliability, life-span and suction capacity, is widely used.But because pump need to be in the device drives of motor, in the running, because vibration, the lax bolt that makes occur to become flexible, sealing is poor for gear pump.The consequence that bolt connection loosening will cause fluid to reveal, not only impact is produced and can be produced potential safety hazard in addition, so locking thread is a significant problem of puzzlement machinery industry always.
Summary of the invention
The present invention is intended to overcome the defect of prior art, and a kind of anti-loosening gear pump is provided, and has simple in structurely, and the pump housing connects closely, and good airproof performance adopts to be provided with outwardly externally threaded clamping bolt and to be difficult for looseningly, and pump housing outlet connection safety valve, is difficult for blocking.
Technological scheme of the present invention is as follows: a kind of anti-loosening gear pump, comprise the pump housing, protecgulum, bonnet, gear one and gear two, protecgulum and bonnet are fixed by clamping bolt, joint at protecgulum and bonnet is provided with seal ring, described gear two is connected with a joggle with gear one, and the pump housing is divided into suction chamber and discharge side, and suction chamber and discharge side separate by the line of contact of gear one and gear two, described bonnet and motor are fixed, and described gear one is arranged on the main shaft of motor.
Described clamping bolt is provided with outwardly outside thread.
The described pump housing is provided with the internal thread through hole matching with clamping bolt, and through hole internal thread one side is provided with the arc surface caving inward.
Described pump housing outlet is connected with safety valve.
Compared with prior art, the present invention has following beneficial effect:
The present invention is simple in structure, has simple in structurely, and the pump housing connects closely, and good airproof performance adopts to be provided with outwardly externally threaded clamping bolt and to be difficult for looseningly, and pump housing outlet connection safety valve, is difficult for blocking.Adopt concaveconvex structure bolt, gear pump is connected firmly, long service life, and performance is good.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the anti-loosening gear pump of the present invention.
Fig. 2 is the schematic diagram of the clamping bolt of the anti-loosening gear pump of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As shown in Figure 1 and Figure 2, a kind of anti-loosening gear pump, comprises the pump housing 1, protecgulum 2, bonnet 3, gear 1 and gear 25, and protecgulum 2 is fixing by clamping bolt 6 with bonnet 3, and described clamping bolt 6 is provided with outwardly outside thread 61.In protecgulum 2 and the joint of bonnet 3, be provided with seal ring, described gear 25 is connected with a joggle with gear 1, the pump housing 1 is divided into suction chamber and discharge side, suction chamber and discharge side separate by the line of contact of gear one and gear two, and when gear rotates, the volume in the space of gear suction chamber one side is large from little change, form vacuum, liquid is sucked, and the volume in the space of gear discharge side one side is from diminishing greatly, and liquid is clamp-oned in pipeline and gone.Described bonnet 3 is fixed with motor, and described gear 1 is arranged on the main shaft 7 of motor.The described pump housing 1 is provided with the internal thread through hole matching with clamping bolt, and through hole internal thread one side is provided with the arc surface 11 caving inward.The described pump housing 1 outlet is connected with safety valve 8, and safety valve is Direct spring loaded safety valve.
The present invention is simple in structure, has simple in structurely, and the pump housing connects closely, and good airproof performance adopts to be provided with outwardly externally threaded clamping bolt and to be difficult for looseningly, and pump housing outlet connection safety valve, is difficult for blocking.Adopt concaveconvex structure bolt, gear pump is connected firmly, long service life, and performance is good.
The foregoing is only explanation embodiments of the present invention; be not limited to the present invention, for a person skilled in the art, within the spirit and principles in the present invention all; any modification of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (4)
1. an anti-loosening gear pump, comprise the pump housing, protecgulum, bonnet, gear one and gear two, it is characterized in that: protecgulum and bonnet are fixed by clamping bolt, joint at protecgulum and bonnet is provided with seal ring, described gear two is connected with a joggle with gear one, and the pump housing is divided into suction chamber and discharge side, and suction chamber and discharge side separate by the line of contact of gear one and gear two, described bonnet and motor are fixed, and described gear one is arranged on the main shaft of motor.
2. anti-loosening gear pump according to claim 1, is characterized in that, described clamping bolt is provided with outwardly outside thread.
3. anti-loosening gear pump according to claim 1, is characterized in that, it is characterized in that, the described pump housing is provided with the internal thread through hole matching with clamping bolt, and through hole internal thread one side is provided with the arc surface caving inward.
4. anti-loosening gear pump according to claim 1, is characterized in that, it is characterized in that, described pump housing outlet is connected with safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715891.4A CN103742407A (en) | 2013-12-23 | 2013-12-23 | Anti-loosening gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715891.4A CN103742407A (en) | 2013-12-23 | 2013-12-23 | Anti-loosening gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103742407A true CN103742407A (en) | 2014-04-23 |
Family
ID=50499459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310715891.4A Pending CN103742407A (en) | 2013-12-23 | 2013-12-23 | Anti-loosening gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103742407A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559189A (en) * | 2017-08-15 | 2018-01-09 | 王道红 | The locking gear structure and gear pump of a kind of gear pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470776A (en) * | 1979-11-28 | 1984-09-11 | Commercial Shearing, Inc. | Methods and apparatus for gear pump lubrication |
| CN2181582Y (en) * | 1993-10-13 | 1994-11-02 | 华东理工大学 | High pressure corrosion-resistant gear pump |
| CN1342842A (en) * | 2000-09-11 | 2002-04-03 | 济南液压泵有限责任公司 | Gear pump with bidirectional compensator for axial sealing |
| CN2883735Y (en) * | 2006-04-18 | 2007-03-28 | 四川省机械研究设计院 | Embedded high temp geared pump |
| CN201599187U (en) * | 2010-01-26 | 2010-10-06 | 东莞市神煜机械有限公司 | External gear pump |
| CN103322007A (en) * | 2013-05-24 | 2013-09-25 | 新疆德坤建材有限责任公司 | Anti-loosening thread structure |
-
2013
- 2013-12-23 CN CN201310715891.4A patent/CN103742407A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470776A (en) * | 1979-11-28 | 1984-09-11 | Commercial Shearing, Inc. | Methods and apparatus for gear pump lubrication |
| CN2181582Y (en) * | 1993-10-13 | 1994-11-02 | 华东理工大学 | High pressure corrosion-resistant gear pump |
| CN1342842A (en) * | 2000-09-11 | 2002-04-03 | 济南液压泵有限责任公司 | Gear pump with bidirectional compensator for axial sealing |
| CN2883735Y (en) * | 2006-04-18 | 2007-03-28 | 四川省机械研究设计院 | Embedded high temp geared pump |
| CN201599187U (en) * | 2010-01-26 | 2010-10-06 | 东莞市神煜机械有限公司 | External gear pump |
| CN103322007A (en) * | 2013-05-24 | 2013-09-25 | 新疆德坤建材有限责任公司 | Anti-loosening thread structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559189A (en) * | 2017-08-15 | 2018-01-09 | 王道红 | The locking gear structure and gear pump of a kind of gear pump |
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Legal Events
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|---|---|---|---|
| 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: 20140423 |