CN205135990U - Novel external gear pump - Google Patents
Novel external gear pump Download PDFInfo
- Publication number
- CN205135990U CN205135990U CN201520741169.2U CN201520741169U CN205135990U CN 205135990 U CN205135990 U CN 205135990U CN 201520741169 U CN201520741169 U CN 201520741169U CN 205135990 U CN205135990 U CN 205135990U
- Authority
- CN
- China
- Prior art keywords
- gear
- pump
- pump housing
- pump body
- screw
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model discloses a novel external gear pump, including the pump body, driving gear and driven gear, pump body rear end face is provided with the back lid to use cylindric lock and fix with screw, inside driving shaft and the driven shaft of being provided with of the pump body, the driving shaft with be fixed with with the parallel key respectively on the driven shaft the driving gear with driven gear, be close to on the driving shaft the terminal surface opening part is provided with the sealing washer before the pump body, the terminal surface is provided with the end cover before the pump body, uses simultaneously the fix with screw, pump body both sides are provided with inlet port and oil -out respectively. Beneficial effect lies in: sealed effectual, the transmission is steady, prevented that oil from revealing the pump between the pump body and end cover outside, small in noise, work efficiency is high, it is less relatively to wear and tear, has improved life greatly.
Description
Technical field
The utility model belongs to gear pump technical field, is specifically related to a kind of novel external gear pump.
Background technique
The energy is all the focus of global concern all the time, is the indispensable factor of world development, and when everybody is when advocating sustainable development, energy saving just becomes more and more important.Early stage gear pump is all full hydraulic, and after environmental protection and energy saving become a kind of development trend day by day, the development of gear pump also can and then change.Gear pump relies on the swept volume formed between pumping cylinder and engaging gear to change and the mobile rotary pump carried liquid or make it supercharging.Form two enclosed spaces by two gears, the pump housing and front and rear covers, when pinion rotation, the volume in the space of the side that is out of gear is large from little change, forms vacuum, is sucked by liquid, and liquid from diminishing greatly, and is clamp-oned in pipeline and gone by the volume in the space of gears meshing side.Suction chamber and discharge side lean on the line of contact of two gears to separate.The pressure of the exhaust port of gear pump depends on the size pumping place's resistance completely.Along with the continuous progress of technology, gear pump product will to environmental protection, energy-conservation, intelligent direction development.But the bearing wear of current gear pump is serious, and the raising of working pressure is restricted, and flow pulsation is large, cause system pressure to be pulsed large, noise is large, and working life is short, and efficiency is low.
Model utility content
The purpose of this utility model is just to provide a kind of novel external gear pump to solve the problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of novel external gear pump, comprise the pump housing, driving gear and driven gear, described pump housing ear end face is provided with bonnet, and use straight pin and screw to fix, described pump body is provided with driving shaft and driven shaft, described driving shaft and described driven shaft are fixed with described driving gear and described driven gear with flat key respectively, described driving shaft is provided with seal ring near described pump housing front-end face opening, described pump housing front-end face is provided with end cap, and fix with described screw, described pump housing both sides are respectively arranged with inlet port and oil outlet.
In said structure, when described driving gear drives described driven gear to rotate, this reduces the engagement side space pressure of driving gear and produces parital vacuum, oil enters the described inlet port of pump under atmospheric pressure effect, along with the rotation of gear, the oil in teeth groove is taken to the described oil outlet of opposite side.
In order to improve its working efficiency further, the described pump housing is fixedly connected with described screw by described straight pin with described bonnet.
In order to improve its working efficiency further, described driving gear is connected with described driving shaft, and described driven gear is connected with described driven shaft, and described driving gear engages with described driven gear.
In order to improve its working efficiency further, described end cap is fixedly connected with by described screw with the described pump housing.
In order to improve its working efficiency further, described inlet port is connected with the described pump housing with described oil outlet, and is positioned at described pump housing both sides.
The beneficial effects of the utility model are: good sealing effect, stable drive, and prevent oil from being leaked to pump between the pump housing and end cap, noise is little, and working efficiency is high, weares and teares relatively little, substantially increases working life.
Accompanying drawing explanation
Fig. 1 is the plan view of a kind of novel external gear pump described in the utility model;
Fig. 2 is the left view of a kind of novel external gear pump described in the utility model.
1, screw; 2, driven gear; 3, driven shaft; 4, bonnet; 5, driving shaft; 6, driving gear; 7, straight pin; 8, seal ring; 9, end cap; 10, flat key; 11, the pump housing; 12, inlet port; 13, oil outlet.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As Figure 1-Figure 2, a kind of novel external gear pump, comprise the pump housing 11, driving gear 6 and driven gear 2, the pump housing 11 ear end face is provided with bonnet 4, bonnet 4 plays sealing, and use straight pin 7 and screw 1 to fix, straight pin 7 and screw 1 are in order to retaining element, the pump housing 11 inside is provided with driving shaft 5 and driven shaft 3, driving shaft 5 is live axles, driving shaft 5 and driven shaft 3 are fixed with driving gear 6 and driven gear 2 with flat key 10 respectively, flat key 10 carrys out transmitting torque by extruding, driving shaft 5 is provided with seal ring 8 near the pump housing 11 front-end face opening, seal ring 8 can improve the sealability of machine, the pump housing 11 front-end face is provided with end cap 9, end cap 9 is mounted in the casings such as a motor bonnet below, play protection and sealing, and fix with screw 1, the pump housing 11 both sides are respectively arranged with inlet port 12 and oil outlet 13, inlet port 12 is in order to suck oil, oil outlet 13 is in order to discharge oil.
In said structure, when driving gear 6 drives driven gear 2 to rotate, this reduces the engagement side space pressure of driving gear and produces parital vacuum, and oil enters the inlet port 12 of pump under atmospheric pressure effect, along with the rotation of gear, the oil in teeth groove is taken to the oil outlet 13 of opposite side.
In order to improve its working efficiency further, the pump housing 11 is fixedly connected with screw 1 by straight pin 7 with bonnet 4, driving gear 6 is connected with driving shaft 5, driven gear 2 is connected with driven shaft 3, driving gear 6 engages with driven gear 2, end cap 9 is fixedly connected with by screw 1 with the pump housing 11, and inlet port 12 is connected with the pump housing 11 with oil outlet 13, and is positioned at the pump housing 11 both sides.
More than show and describe basic principle of the present utility model, major character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and effect thing thereof.
Claims (5)
1. a novel external gear pump, it is characterized in that: comprise the pump housing, driving gear and driven gear, described pump housing ear end face is provided with bonnet, and use straight pin and screw to fix, described pump body is provided with driving shaft and driven shaft, described driving shaft and described driven shaft are fixed with described driving gear and described driven gear with flat key respectively, described driving shaft is provided with seal ring near described pump housing front-end face opening, described pump housing front-end face is provided with end cap, and fix with described screw, described pump housing both sides are respectively arranged with inlet port and oil outlet.
2. the novel external gear pump of one according to claim 1, is characterized in that: the described pump housing is fixedly connected with described screw by described straight pin with described bonnet.
3. the novel external gear pump of one according to claim 1, it is characterized in that: described driving gear is connected with described driving shaft, described driven gear is connected with described driven shaft, and described driving gear engages with described driven gear.
4. the novel external gear pump of one according to claim 1, is characterized in that: described end cap is fixedly connected with by described screw with the described pump housing.
5. the novel external gear pump of one according to claim 1, is characterized in that: described inlet port is connected with the described pump housing with described oil outlet, and is positioned at described pump housing both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520741169.2U CN205135990U (en) | 2015-09-23 | 2015-09-23 | Novel external gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520741169.2U CN205135990U (en) | 2015-09-23 | 2015-09-23 | Novel external gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135990U true CN205135990U (en) | 2016-04-06 |
Family
ID=55621789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520741169.2U Expired - Fee Related CN205135990U (en) | 2015-09-23 | 2015-09-23 | Novel external gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135990U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061261A (en) * | 2017-04-30 | 2017-08-18 | 刘泽奎 | A kind of gear pump with variable capacity |
| CN113167271A (en) * | 2018-11-13 | 2021-07-23 | Ghsp公司 | Modular fluid pump for multiple applications |
-
2015
- 2015-09-23 CN CN201520741169.2U patent/CN205135990U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061261A (en) * | 2017-04-30 | 2017-08-18 | 刘泽奎 | A kind of gear pump with variable capacity |
| CN107061261B (en) * | 2017-04-30 | 2019-05-10 | 南京华纳机电设备制造有限公司 | A kind of gear pump with variable capacity |
| CN113167271A (en) * | 2018-11-13 | 2021-07-23 | Ghsp公司 | Modular fluid pump for multiple applications |
| CN113167271B (en) * | 2018-11-13 | 2024-03-15 | Ghsp公司 | Modular fluid pump for multiple applications |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160906 Address after: 223345, Huaian Town, Huaiyin District, Jiangsu Province, three towns (wharf town processing area) Patentee after: Huaian Huai Hydraulic Machinery Co., Ltd. Address before: 362000 Shigu, Fujian, Yongchun County town of Phoenix Village, No. Patentee before: Zheng Xiumei |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20160923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |