CN103742408A - Anti-loosening gear pump - Google Patents
Anti-loosening gear pump Download PDFInfo
- Publication number
- CN103742408A CN103742408A CN201310715813.4A CN201310715813A CN103742408A CN 103742408 A CN103742408 A CN 103742408A CN 201310715813 A CN201310715813 A CN 201310715813A CN 103742408 A CN103742408 A CN 103742408A
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- China
- Prior art keywords
- gear
- coupling
- loosening
- pump
- bonnet
- Prior art date
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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
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 threads; a strake is sheathed outside the front cover and back cover; the pump body is divided into a suction chamber and a discharge chamber which are separated by the mesh line of the two gears; the back cover is fixedly connected with a micromotor through a coupling; the gear 1 is arranged on a main shaft of the motor; and the gear 2 and gear 1 are connected in a mesh mode. The fastening bolt is provided with an external thread, and the tip of the external thread tilts to the side of a screw cap. The pump body is provided with an internal thread through hole matched with the fastening bolt. The coupling is a claw coupling or chain wheel coupling. The gear pump has the advantages of simple structure, favorable sealability and low tendency to loosening.
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.This end face direct friction of gear in traditional gear pump and front and back contacts, serious wear, noise greatly, easily overheated, reduce working life of pump group, after long-term friction, easily kill, on have speed slow, make gear pump underfed, working pressure is less, does not reach rated pressure and flow, and because gear pump is the device drives at motor, in the running, because vibration, the lax bolt that makes occur to become flexible, sealing is poor for gear pump.Bolt connection loosening will cause gear fluid reveal adverse consequences, not only impact produce can produce in addition potential safety hazard, so gear locking be always puzzlement machinery industry a significant problem.
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 the clamping bolt of concavo-convex screw thread to be difficult for loosening.
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 screw thread, protecgulum and bonnet outside are socketed with hoop bar, the pump housing is divided into suction chamber and discharge side, and suction chamber and discharge side separate by the line of contact of two gears, and described bonnet is fixedly connected with by coupling with micromachine, described gear one is arranged on the main shaft of motor, and described gear two is connected with a joggle with gear one.
Described clamping bolt is provided with outside thread, and outside thread tip is to nut lopsidedness.
The described pump housing is provided with the internal thread through hole matching with clamping bolt.
Described coupling is claw coupling or sprocket wheel shaft coupling.
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, is provided with Stamping Steel Ribbon and makes the pump housing between front and rear covers, and good airproof performance, adopts the clamping bolt of concavo-convex screw thread to be difficult for loosening, and locking stability is stronger, and is difficult for blocking.
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 fixed by clamping bolt 6 screw threads with bonnet 3, and described clamping bolt is provided with outside thread 61, and outside thread tip is to nut lopsidedness.Protecgulum 2 and bonnet 3 outsides are socketed with hoop bar 7, the described pump housing 1 is provided with the internal thread through hole matching with clamping bolt, the pump housing 1 is divided into suction chamber and discharge side, suction chamber and discharge side separate by the line of contact of two gears, described bonnet 3 is fixedly connected with by coupling 9 with micromachine 8, and described coupling is claw coupling or sprocket wheel shaft coupling.Described gear 1 is arranged on the main shaft of motor, and described gear 25 is connected with a joggle with gear 1.The described pump housing 1 outlet is connected with safety valve, 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, is provided with Stamping Steel Ribbon and makes the pump housing between front and rear covers, and good airproof performance, adopts the clamping bolt of concavo-convex screw thread to be difficult for loosening, and locking stability is stronger, and is difficult for blocking.
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 screw thread, protecgulum and bonnet outside are socketed with hoop bar, the pump housing is divided into suction chamber and discharge side, and suction chamber and discharge side separate by the line of contact of two gears, and described bonnet is fixedly connected with by coupling with micromachine, described gear one is arranged on the main shaft of motor, and described gear two is connected with a joggle with gear one.
2. anti-loosening gear pump according to claim 1, is characterized in that, described clamping bolt is provided with outside thread, and outside thread tip is to nut lopsidedness.
3. anti-loosening gear pump according to claim 1, is characterized in that, the described pump housing is provided with the internal thread through hole matching with clamping bolt.
4. anti-loosening gear pump according to claim 1, is characterized in that, described coupling is claw coupling or sprocket wheel shaft coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715813.4A CN103742408A (en) | 2013-12-23 | 2013-12-23 | Anti-loosening gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715813.4A CN103742408A (en) | 2013-12-23 | 2013-12-23 | Anti-loosening gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103742408A true CN103742408A (en) | 2014-04-23 |
Family
ID=50499460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310715813.4A Pending CN103742408A (en) | 2013-12-23 | 2013-12-23 | Anti-loosening gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103742408A (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 |
|---|---|---|---|---|
| US3704968A (en) * | 1970-03-04 | 1972-12-05 | Maag Zahnraeder & Maschinen Ag | Gear pump |
| CN2392024Y (en) * | 1999-09-10 | 2000-08-16 | 徐刚 | Loosen-proof screw bolt |
| CN2888134Y (en) * | 2005-11-11 | 2007-04-11 | 潍柴动力股份有限公司 | Gear lubricating oil pump |
| CN201190738Y (en) * | 2008-04-04 | 2009-02-04 | 隋建卫 | Straight-coupling type gear oil pump generator with coupler |
| CN201433891Y (en) * | 2009-04-21 | 2010-03-31 | 皇明太阳能集团有限公司 | High temperature resistant miniature brushless DC gear wheel pump |
| CN201730824U (en) * | 2010-07-22 | 2011-02-02 | 浙江腾宇泵阀设备有限公司 | Stainless steel magnetic transmission gear pump |
-
2013
- 2013-12-23 CN CN201310715813.4A patent/CN103742408A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3704968A (en) * | 1970-03-04 | 1972-12-05 | Maag Zahnraeder & Maschinen Ag | Gear pump |
| CN2392024Y (en) * | 1999-09-10 | 2000-08-16 | 徐刚 | Loosen-proof screw bolt |
| CN2888134Y (en) * | 2005-11-11 | 2007-04-11 | 潍柴动力股份有限公司 | Gear lubricating oil pump |
| CN201190738Y (en) * | 2008-04-04 | 2009-02-04 | 隋建卫 | Straight-coupling type gear oil pump generator with coupler |
| CN201433891Y (en) * | 2009-04-21 | 2010-03-31 | 皇明太阳能集团有限公司 | High temperature resistant miniature brushless DC gear wheel pump |
| CN201730824U (en) * | 2010-07-22 | 2011-02-02 | 浙江腾宇泵阀设备有限公司 | Stainless steel magnetic transmission gear pump |
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 |