CN202867199U - External-meshing gear pump - Google Patents
External-meshing gear pump Download PDFInfo
- Publication number
- CN202867199U CN202867199U CN 201220496079 CN201220496079U CN202867199U CN 202867199 U CN202867199 U CN 202867199U CN 201220496079 CN201220496079 CN 201220496079 CN 201220496079 U CN201220496079 U CN 201220496079U CN 202867199 U CN202867199 U CN 202867199U
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- CN
- China
- Prior art keywords
- pump
- gear
- external
- pump housing
- driving gear
- 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
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Abstract
The utility model discloses an external-meshing gear pump, relating to a pump. The external-meshing gear pump comprises an oil inlet (1), an oil outlet (2), a pump body (3), a driving gear (4) and a driven gear (5), wherein the driving gear (4) and the driven gear (5) are arranged in the pump body (3) and meshed with each other, the two ends of the center of the pump body (3) are respectively provided with the oil inlet (1) and the oil outlet (2), and the pump body (3) is arranged in a sealing manner through sealing faces at the two ends of the pump body (3). The external-meshing gear pump has the advantages of simple structure, light weight, low manufacturing cost, reliability in work, and higher volumetric efficiency and mechanical efficiency.
Description
Technical field
The utility model relates to a kind of pump, be specifically related to a kind of external gear pump.
Background technique
External gear pump is simple and compact for structure, volume is little, lightweight, good from absorption, to pollute do not teach sense, reliable operation, cost low, be widely used.Shortcoming is that discharge uniformity is poor, noise is large, does not meet modern designing idea.Application in occasion that the equal habit of flow is had relatively high expectations is restricted.
The defective that traditional external gear pump mainly exists is: volumetric efficiency and mechanical efficiency are not high, and noise is large.Under low pressure, underloading and small-power condition, allow rotating speed lower, volumetric efficiency is also lower.Bring very large inconvenience to its use.
The model utility content
For the deficiency that exists on the prior art, the utility model purpose is to be to provide a kind of external gear pump, and is simple in structure, quality is light, low, the reliable operation of cost, and volumetric efficiency and mechanical efficiency are all higher.
To achieve these goals, the utility model is to realize by the following technical solutions: it comprises filler opening, oil outlet, the pump housing, driving gear and driven gear, be provided with driving gear and driven gear in the pump housing, driving gear is meshed with driven gear, two ends, pump housing center are respectively arranged with filler opening and oil outlet, and the pump housing arranges by its sealed at both ends sealing.
Each inter-tooth slots of the described pump housing and driving gear and driven gear forms the oil pocket of sealing.
Described gear pump adopts dc brushless motor.
Of the present utility model simple in structure, quality is light, low, the reliable operation of cost, volumetric efficiency and mechanical efficiency are all higher.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
With reference to Fig. 1, this embodiment is by the following technical solutions: it comprises filler opening 1, oil outlet 2, the pump housing 3, driving gear 4 and driven gear 5, be provided with driving gear 4 and driven gear 5 in the pump housing 3, driving gear 4 is meshed with driven gear 5, two ends, the pump housing 3 center are respectively arranged with filler opening 1 and oil outlet 2, and the pump housing 3 arranges by its sealed at both ends sealing.
It is worth mentioning that the described pump housing 3 forms the oil pocket 6 that seals with each inter-tooth slots of driving gear 4 and driven gear 5.
And this gear pump adopts dc brushless motor.By these driven by motor driving gear 4 work, driving gear 4 drives driven gear 5 rotations by engagement.When two teeth separate gradually, the volume of working space increases gradually, the forming section vacuum, and the hydraulic oil in the oil storage tank is inhaled into through filler opening 1 under the barometric pressure effect, and the hydraulic oil of suction is pushed high-voltage oil cavity along the pump housing by gear extrusion.When active, when driven gear constantly rotates, pump just can constantly suck and discharge hydraulic oil, and power-assisted is provided.
This embodiment simple in structure, quality is light, low, the reliable operation of cost, volumetric efficiency and mechanical efficiency are all higher.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. external gear pump, it is characterized in that, it comprises filler opening (1), oil outlet (2), the pump housing (3), driving gear (4) and driven gear (5), be provided with driving gear (4) and driven gear (5) in the pump housing (3), driving gear (4) is meshed with driven gear (5), the pump housing (3) two ends, center are respectively arranged with filler opening (1) and oil outlet (2), and the pump housing (3) arranges by its sealed at both ends sealing.
2. external gear pump according to claim 1 is characterized in that, the described pump housing (3) forms the oil pocket (6) that seals with each inter-tooth slots of driving gear (4) and driven gear (5).
3. external gear pump according to claim 1 is characterized in that, described gear pump adopts dc brushless motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496079 CN202867199U (en) | 2012-09-26 | 2012-09-26 | External-meshing gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496079 CN202867199U (en) | 2012-09-26 | 2012-09-26 | External-meshing gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867199U true CN202867199U (en) | 2013-04-10 |
Family
ID=48033922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220496079 Expired - Fee Related CN202867199U (en) | 2012-09-26 | 2012-09-26 | External-meshing gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564658A (en) * | 2013-10-10 | 2015-04-29 | 宁夏琪凯节能设备有限公司 | Energy-saving type external-meshing gear pump |
| CN107255073A (en) * | 2017-06-23 | 2017-10-17 | 浙江乾麟缝制设备有限公司 | A kind of electric motor built-in gear pump |
-
2012
- 2012-09-26 CN CN 201220496079 patent/CN202867199U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564658A (en) * | 2013-10-10 | 2015-04-29 | 宁夏琪凯节能设备有限公司 | Energy-saving type external-meshing gear pump |
| CN107255073A (en) * | 2017-06-23 | 2017-10-17 | 浙江乾麟缝制设备有限公司 | A kind of electric motor built-in gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Tejinghuade Hydraulic Technology Development Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Tejinghuade Hydraulic Technology Development Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20150926 |
|
| EXPY | Termination of patent right or utility model |