CN206274028U - The pump housing and crescent gear pump of a kind of crescent gear pump - Google Patents
The pump housing and crescent gear pump of a kind of crescent gear pump Download PDFInfo
- Publication number
- CN206274028U CN206274028U CN201620426906.4U CN201620426906U CN206274028U CN 206274028 U CN206274028 U CN 206274028U CN 201620426906 U CN201620426906 U CN 201620426906U CN 206274028 U CN206274028 U CN 206274028U
- Authority
- CN
- China
- Prior art keywords
- pump housing
- pressure
- pump
- crescent gear
- pressure oil
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of pump housing of crescent gear pump, including the pump housing, low pressure oil inlet and high-pressure oil outlet are set on the pump housing, minimum two high-pressure channels are set in the high-pressure oil outlet, high pressure collection chamber is set in the high-pressure oil outlet, and the high-pressure channel is communicated with the high pressure collection chamber；High-pressure channel described in two or more is to be arranged in parallel.The utility model is also disclosed a kind of crescent gear pump.The utility model has the following advantages：Processing is simple, low to production equipment requirement, and low cost of manufacture, production efficiency is high, and structure reliability.
Description
【Technical field】
The utility model is related to crescent gear pump field, especially a kind of pump housing of crescent gear pump and internal messing tooth
Wheel pump.
【Background technology】
Crescent gear pump has without pocketed oil phenomenon, conveying steady, efficiency high, noise be small and long service life etc. is excellent
Point.The Newtonian liquid or non newtonian liquid being widely used in the industries such as transfer oil, chemical industry, coating, dyestuff, food, grease, medicine
Body；The species for conveying liquid can be lightweight, volatile liquid, until heavy, sticky, even big Jie of the viscosity such as semisolid liquid
Matter, its applicable range of viscosities can reach 0.2-1000000cp.
As depicted in figs. 1 and 2, low pressure oil inlet 2 and high-pressure oil outlet 1 are provided with the pump housing of existing inside engaged gear,
Wherein high-pressure oil outlet is the through hole of the insertion pump housing.Being set in order to improve oil-out effect, in the existing pump housing mutually has angle
It is 120 degree of two high-pressure channels.Such structure needs to use the special tool(s) to carry out four axles or five-axis robot during fabrication,
Processing cost is extremely costly and time consuming long, and production efficiency is very low.
【Utility model content】
The purpose of this utility model is to overcome the shortcomings of that above-described prior art is present, there is provided a kind of manufacturing cost
Low, production efficiency is high, and a kind of reliable pump housing of crescent gear pump of structure.
Another object of the present utility model is to provide a kind of low cost of manufacture, and production efficiency is high, and structure it is reliable in nibble
Close gear pump.
To reach above-mentioned purpose, the technical solution of the utility model is：A kind of pump housing of crescent gear pump, including pump
Body, sets on the pump housing and minimum two high-pressure channels is set in low pressure oil inlet and high-pressure oil outlet, the high-pressure oil outlet,
High pressure collection chamber is set in the high-pressure oil outlet, and the high-pressure channel is communicated with the high pressure collection chamber.
High-pressure channel described in two or more is to be arranged in parallel, such handling ease, low cost of manufacture, and high working efficiency.
The high-pressure channel is communicated with the high-voltage oil cavity on pump housing madial wall.
Installation connecting element in the high-pressure oil outlet, exit passageway is provided with the connector.
A kind of crescent gear pump, including the above-mentioned pump housing.
One gear ring and little gear engage with gear ring part teeth portion be set in the pump housing, the pump housing it is interior with it is small
An annular space for becoming narrow gradually is formed between the outside circle portion of gear, the holding of semilune pressure is set in the annular space
Device.
Compared with prior art, the utility model has the following advantages：Processing is simple, low to production equipment requirement, is manufactured into
This is low, and production efficiency is high, and structure reliability.
【Brief description of the drawings】
The utility model is further illustrated with reference to the accompanying drawings and examples：
Fig. 1 is the cross-sectional structure figure of existing crescent gear pump；
Fig. 2 is the axial cross section structure chart of existing crescent gear pump；
Fig. 3-9 is the example structure figure of the pump housing of the utility model crescent gear pump；
Figure 10-11 is the three-dimensional structure diagram of connector in the utility model.
【Specific embodiment】
The utility model is described in detail below in conjunction with the drawings and specific embodiments.
A kind of pump housing of crescent gear pump, as in Figure 3-5, including the pump housing 3, low pressure oil inlet is set on the pump housing
2 and high-pressure oil outlet 1, minimum two high-pressure channels 11 are set in the high-pressure oil outlet 1, set in the high-pressure oil outlet 1
High pressure collection chamber 12 is put, the high-pressure channel 11 is communicated with the high pressure collection chamber 12.High-pressure channel 11 is described in two or more
It is arranged in parallel, such handling ease, low cost of manufacture, and high working efficiency.On the high-pressure channel 11 and pump housing madial wall
High-voltage oil cavity 13 is communicated.Wherein, the height (distance between inner bottom part and pump housing outer surface) of the high pressure collection chamber 12 is 1-
5cm。
As described in Fig. 6 and Fig. 7, wherein, the high-pressure channel 11 can be provided with three, and three high-pressure channels 11 are
It is arranged in parallel, such handling ease, low cost of manufacture, and high working efficiency.The high-pressure channel 11 and pump housing madial wall
On high-voltage oil cavity 13 and high pressure collection chamber 12 communicate.
As described in Fig. 8 and Fig. 9, wherein, the high-pressure channel 11 is provided with four, and four high-pressure channels 11 are mutual
It is arranged in parallel, such handling ease, low cost of manufacture, and high working efficiency.On the high-pressure channel 11 and pump housing madial wall
High-voltage oil cavity 13 and high pressure collection chamber 12 are communicated.
The installation connecting element 5 in the high-pressure oil outlet 1, be provided with the connector 5 exit passageway 51 and with it is described
The groove that high pressure collection chamber 12 matches.The connector 5 can be the flange with through hole.Spiral shell is set on the connector 5
Silk fixing hole 52.
A kind of crescent gear pump, as shown in figure 4, set including the above-mentioned pump housing 3, in the pump housing 3 gear ring and with
The little gear of gear ring part teeth portion engagement, forms one and becomes narrow gradually in the pump housing and the outside circle portion of little gear between
Annular space, semilune pressure vessel is set in the annular space.The little gear is fixed on tooth axle 4, by tooth axle
It is supported in the pump housing.The little gear is arranged off-centre, little gear teeth portion relative with the gear ring in the pump housing relative to the pump housing 3
Engagement.A sickle -shaped annular space for becoming narrow gradually -- pump chamber is formed between the pump housing 3 and the outside circle portion of little gear,
The semilune pressure vessel being substantially adapted with the side peripheral profile of the pump chamber is provided with the pump chamber.
Although the utility model is to be described with reference to specific embodiments, this description is not meant to the utility model
It is construed as limiting.With reference to description of the present utility model, other changes of the disclosed embodiments are all for those skilled in the art
It is anticipated that, this change should belong in appended claims limited range.
Claims (5)
1. a kind of pump housing of crescent gear pump, including the pump housing, it is characterised in that low pressure oil inlet and height are set on the pump housing
Extrude and minimum two high-pressure channels are set in hydraulic fluid port, the high-pressure oil outlet, high pressure oil-collecting is set in the high-pressure oil outlet
Chamber, the high-pressure channel is communicated with the high pressure collection chamber, and high-pressure channel described in two or more is to be arranged in parallel；The high pressure collection
The height of oil pocket is 1-5cm.
2. according to a kind of pump housing of the crescent gear pump described in claim 1, it is characterised in that the high-pressure channel and the pump housing
High-voltage oil cavity on madial wall is communicated.
3. according to a kind of pump housing of the crescent gear pump described in claim 2, it is characterised in that pacify in the high-pressure oil outlet
Load fitting, exit passageway is provided with the connector.
4. a kind of crescent gear pump, it is characterised in that including according to any described crescent gear pumps of claim 1-3
The pump housing.
5. according to a kind of crescent gear pump described in claim 4, it is characterised in that set in the pump housing gear ring and
One is formed in the little gear engaged with gear ring part teeth portion, the pump housing and the outside circle portion of little gear between gradually to become
Narrow annular space, sets semilune pressure vessel in the annular space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620426906.4U CN206274028U (en) | 2016-05-11 | 2016-05-11 | The pump housing and crescent gear pump of a kind of crescent gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620426906.4U CN206274028U (en) | 2016-05-11 | 2016-05-11 | The pump housing and crescent gear pump of a kind of crescent gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206274028U true CN206274028U (en) | 2017-06-23 |
Family
ID=59062174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620426906.4U Active CN206274028U (en) | 2016-05-11 | 2016-05-11 | The pump housing and crescent gear pump of a kind of crescent gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206274028U (en) |
-
2016
- 2016-05-11 CN CN201620426906.4U patent/CN206274028U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201306277Y (en) | Highly viscous three-screw pump | |
| EP2899448A1 (en) | Liquid distributing valve | |
| CN104329302B (en) | One is pressurized fuel tank step by step | |
| CN206274028U (en) | The pump housing and crescent gear pump of a kind of crescent gear pump | |
| CN104565751A (en) | Double-tooth-difference cycloidal gear pump | |
| CN100545452C (en) | A kind of crescent gear pump | |
| CN206092388U (en) | Use no sideshake meshed gear's hydraulic gear oil pump | |
| CN206221244U (en) | The high-pressure oil outlet structure and crescent gear pump of a kind of crescent gear pump | |
| CN106907319A (en) | A kind of Quimby pump | |
| CN105805158A (en) | Hydrostatic pressure lubrication bearing | |
| CN202833108U (en) | Diaphragm pump bearing lubricating device | |
| CN205805901U (en) | A kind of pump body structure of crescent gear pump | |
| CN102635549A (en) | Design method for realizing dynamic balance of single-head uniform-pitch hollow screw rotor | |
| CN105840503A (en) | High pressure oil outlet structure of internal gear pump and internal gear pump | |
| CN105840492A (en) | Pump body of internal gear pump and internal gear pump | |
| CN103912485A (en) | High-flow and low-pulsation gear pump with compact structure | |
| CN201281007Y (en) | Self- radiation axial plunger pump | |
| CN209539554U (en) | A kind of oil free screw compressor support end structure | |
| CN205559266U (en) | Singly overlap mechanical seal glue solution pump | |
| CN107387350B (en) | Plunger assembly for oblique plunger motor and oblique plunger motor | |
| CN107489611B (en) | Small impact gear type oil pump | |
| CN207178211U (en) | A kind of impeller adjusting device of water ring pump | |
| CN205918586U (en) | Ring gear and crescent gear pump | |
| CN205918584U (en) | Pump body structure and crescent gear pump | |
| CN201152255Y (en) | Conical three screw-rod pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |