CN103742409A - Leakproof gear pump - Google Patents
Leakproof gear pump Download PDFInfo
- Publication number
- CN103742409A CN103742409A CN201310715896.7A CN201310715896A CN103742409A CN 103742409 A CN103742409 A CN 103742409A CN 201310715896 A CN201310715896 A CN 201310715896A CN 103742409 A CN103742409 A CN 103742409A
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- China
- Prior art keywords
- gear
- pump
- pump housing
- pump body
- bonnet
- 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.)
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Abstract
The invention belongs to the technical field of positive displacement pumps, and discloses a leakproof 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 a fastening bolt thread; the threaded joint between the front cover and back cover is provided with a sealing strip immersed in an adhesive; 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 outlet of the pump body is arranged on one side of the discharge chamber; 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 outlet of the pump body is connected with a safety valve, and the safety valve is fixed to an electromagnetic valve. 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 leakage-preventing gear 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 leakage-preventing gear pump is provided, have simple in structure, convenient operation control, the pump housing adopts and is threaded with the clamping bolt of concavo-convex screw thread, good airproof performance is difficult for loosening.
Technological scheme of the present invention is as follows: a kind of leakage-preventing gear pump, comprise the pump housing, protecgulum, bonnet, gear one and gear two, protecgulum and bonnet are fixed by clamping bolt screw thread, threaded connection place at protecgulum and bonnet arranges the Stamping Steel Ribbon immersed with binder, the pump housing is divided into suction chamber and discharge side, suction chamber and discharge side separate by the line of contact of two gears, described pump housing outlet is arranged at discharge side one side, described bonnet is fixedly connected with by coupling with micromachine, described gear one is arranged on the main shaft of motor, 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 pump housing outlet is connected with safety valve, and described safety valve is fixed on solenoid valve.
Compared with prior art, the present invention has following beneficial effect:
The present invention is simple in structure, pump housing connected electromagnetic valve, convenient operation control; The pump housing adopts and is threaded with the clamping bolt of concavo-convex screw thread, and locking stability is stronger, is provided with Stamping Steel Ribbon and makes the pump housing between front/rear cover, and good airproof performance, is difficult for loosening.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the leakage-preventing gear pump of the present invention.
Fig. 2 is the schematic diagram of the clamping bolt of the leakage-preventing 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 leakage-preventing 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, described clamping bolt 6 is provided with outside thread 61, and outside thread tip is to nut lopsidedness.In protecgulum 2 and the joint of bonnet 3, the Stamping Steel Ribbon 7 immersed with binder is set, 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 pump housing outlet 10 is arranged at discharge side one side, 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.Described pump housing outlet 10 is connected with safety valve 11, and safety valve is Direct spring loaded safety valve.Described safety valve is fixed on solenoid valve 12.
The present invention is simple in structure, pump housing connected electromagnetic valve, convenient operation control; The pump housing adopts and is threaded with the clamping bolt of concavo-convex screw thread, and locking stability is stronger, is provided with Stamping Steel Ribbon and makes the pump housing between front/rear cover, and good airproof performance, is difficult for loosening.Inlet port at gear pump is often installed strainer.
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. a leakage-preventing 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 screw thread, threaded connection place at protecgulum and bonnet arranges the Stamping Steel Ribbon immersed with binder, the pump housing is divided into suction chamber and discharge side, suction chamber and discharge side separate by the line of contact of two gears, described pump housing outlet is arranged at discharge side one side, 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. leakage-preventing 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. leakage-preventing 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. leakage-preventing gear pump according to claim 1, is characterized in that, described pump housing outlet is connected with safety valve, and described safety valve is fixed on solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715896.7A CN103742409A (en) | 2013-12-23 | 2013-12-23 | Leakproof gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715896.7A CN103742409A (en) | 2013-12-23 | 2013-12-23 | Leakproof gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103742409A true CN103742409A (en) | 2014-04-23 |
Family
ID=50499461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310715896.7A Pending CN103742409A (en) | 2013-12-23 | 2013-12-23 | Leakproof gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103742409A (en) |
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 CN201310715896.7A patent/CN103742409A/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 |
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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 |