CN205805901U - A kind of pump body structure of crescent gear pump - Google Patents
A kind of pump body structure of crescent gear pump Download PDFInfo
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- CN205805901U CN205805901U CN201620443491.1U CN201620443491U CN205805901U CN 205805901 U CN205805901 U CN 205805901U CN 201620443491 U CN201620443491 U CN 201620443491U CN 205805901 U CN205805901 U CN 205805901U
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- pressure oil
- pump
- pump housing
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Abstract
This utility model discloses the pump body structure of a kind of crescent gear pump, including the high-pressure oil outlet being arranged on the pump housing and low pressure oil-in, described pump housing medial wall arranges low pressure oil pocket and some high-voltage oil cavities, high-pressure oil passage is set between described high-voltage oil cavity and is connected with described high-pressure oil outlet；Described high-pressure oil passage is disposed on pump housing inner surface and connects the groove of described high-voltage oil cavity, and described groove is connected with described high-pressure oil outlet, for conveying high-pressure oil.This utility model has the following advantages: better tightness, and fabrication and processing is simple, and cost of manufacture is low, and assembling is the easiest, and can effectively strengthen radial compensation usefulness；Calking positive is more with the contact area of gear, and effective raising pressurize is effective, stable；The most also have reliable and stable, cost of manufacture is low, service life the advantage such as length.
Description
[technical field]
This utility model relates to crescent gear pump field, the pump body structure of a kind of crescent gear pump.
[background technology]
Crescent gear pump has without pocketed oil phenomenon, conveying steadily, efficiency is high, noise is little and length in service life etc. is excellent
Point.It is widely used in the Newtonian liquid in the industries such as transfer oil, chemical industry, coating, dyestuff, food, oils and fats, medicine or non newtonian liquid
Body；But the conveying kind lightweight of liquid, volatile liquid are until big Jie of the viscosity such as heavy, thickness, even semisolid liquid
Matter, its range of viscosities being suitable for can reach 0.2-1000000cp.
High-pressure oil outlet in the pump housing of existing crescent gear pump is typically connected with high-voltage oil cavity by arranging oblique through hole,
Such structure makes processing and manufacturing difficulty bigger, and manufacturing cost is higher；Additionally there is also the shortcomings such as pressure maintaining performance difference.Cause
This, it is necessary to the pump housing of existing crescent gear pump is improved.
[utility model content]
The purpose of this utility model is the deficiency overcoming above-described prior art to exist, it is provided that a kind of pressurize
The pump body structure of the crescent gear pump good, processing and manufacturing is easy, reliable and stable.
For reaching above-mentioned purpose, the technical solution of the utility model is: the pump body structure of a kind of crescent gear pump, including
The high-pressure oil outlet being arranged on the pump housing and low pressure oil-in, arrange low pressure oil pocket and some high pressure on described pump housing medial wall
Oil pocket, arranges high-pressure oil passage and is connected with described high-pressure oil outlet between described high-voltage oil cavity.
Described high-pressure oil passage is disposed on pump housing inner surface and connects the groove of described high-voltage oil cavity, and described groove is with described
High-pressure oil outlet connects, for conveying high-pressure oil.
Described high-pressure oil passage is disposed on pump housing inner surface and connects the arc groove of described high-voltage oil cavity.
Described high-pressure oil passage is disposed on pump housing inner surface and connects the rectangular recess of described high-voltage oil cavity.
Also setting up low pressure oil pocket on the described pump housing, described low pressure oil pocket is connected with described low pressure oil-in and communicates.
Described pump housing medial wall arranges some oil-ways, is used for sealing and lubricating.
Compared with prior art, this utility model has the following advantages: better tightness, and fabrication and processing is simple, cost of manufacture
Low, and assembling is the easiest, and can effectively strengthen radial compensation usefulness；Calking positive is more with the contact area of gear, has
The raising pressurize of effect is effective, stable；The most also have reliable and stable, cost of manufacture is low, service life the advantage such as length.
[accompanying drawing explanation]
Fig. 1 is crescent gear pump stereoscopic mechanism figure；
Fig. 2 is the axial sectional view 1 of crescent gear pump；
Fig. 3 is the axial sectional view 2 of crescent gear pump；
Fig. 4 is the cross section view of crescent gear pump；
Fig. 5 is the sectional view of the pump body structure embodiment 1 of crescent gear pump；
Fig. 6 is the sectional view of the pump body structure embodiment 2 of crescent gear pump；
Fig. 7 is the sectional view of the pump body structure embodiment 3 of crescent gear pump；
Fig. 8 is the sectional view of the pump body structure embodiment 4 of crescent gear pump；
Fig. 9 is the sectional view of the pump body structure embodiment 5 of crescent gear pump；
Figure 10 is the sectional view of the pump body structure embodiment 6 of crescent gear pump.
[detailed description of the invention]
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail.
Embodiment 1
The pump body structure of a kind of crescent gear pump, as it is shown in figure 5, include the high-pressure oil outlet 32 being arranged on the pump housing 3
With low pressure oil-in 31, the described pump housing 3 medial wall arranges low pressure oil pocket 33 and the first high-voltage oil cavity 341 and the second hydraulic oil
Chamber 342, described low pressure oil pocket 33 is connected with described low pressure oil-in 31 and communicates.High at described first high-voltage oil cavity 341 and second
Arrange the high-pressure oil passage 36 of arc between pumping cavity 342 to be connected with described high-pressure oil outlet 32 and communicate.The described high pressure of arc
Oil passage 36 is disposed on the pump housing 3 inner surface and connects described first high-voltage oil cavity 341 and the groove of the second high-voltage oil cavity 342, institute
State groove to be connected with described high-pressure oil outlet 32, for conveying high-pressure oil.In the described pump housing 3 medial wall, the first oil-way is set
351, the second oil-way 352 and the 3rd oil-way 353, is used for sealing and lubricating.
Embodiment 2
As shown in Figure 6, structure is substantially the same manner as Example 1, except for the difference that high at described first high-voltage oil cavity 341 and second
Arrange the high-pressure oil passage 36 of rectangle (square) between pumping cavity 342 to be connected with described high-pressure oil outlet 32 and communicate.Rectangle (side
Shape) described high-pressure oil passage 36 be disposed on the pump housing 3 inner surface connect described first high-voltage oil cavity 341 and the second high-voltage oil cavity
The groove of 342.
Embodiment 3
As it is shown in fig. 7, arrange low pressure oil pocket the 33, first high-voltage oil cavity the 341, second high pressure on the described pump housing 3 medial wall
Oil pocket 342 and the 3rd high-voltage oil cavity 343.First high-voltage oil cavity the 341, second high-voltage oil cavity 342 and the 3rd high-voltage oil cavity 343 it
Between the high-pressure oil passage 36 of arc is set is connected with described high-pressure oil outlet 32 and communicates.The described high-pressure oil passage 36 of arc is to set
It is placed in the pump housing 3 inner surface and connects the first high-voltage oil cavity the 341, second high-voltage oil cavity 342 and the groove of the 3rd high-voltage oil cavity 343, institute
State groove to be connected with described high-pressure oil outlet 32, for conveying high-pressure oil.In the described pump housing 3 medial wall, the first oil-way is set
351, the second oil-way the 352, the 3rd oil-way 353 and the 4th oil-way 354, is used for sealing and lubricating.
Embodiment 4
As shown in Figure 8, structure is substantially the same manner as Example 3, except for the difference that high at described first high-voltage oil cavity 341, second
The high-pressure oil passage 36 of rectangle (square) and described high-pressure oil outlet 32 are set between pumping cavity 342 and the 3rd high-voltage oil cavity 343
Connection communicates.The described high-pressure oil passage 36 of rectangle (square) is disposed on the pump housing 3 inner surface and connects described first high-voltage oil cavity
341, the second high-voltage oil cavity 342 and groove of the 3rd high-voltage oil cavity 343.
Embodiment 5
As it is shown in figure 9, arrange low pressure oil pocket the 33, first high-voltage oil cavity the 341, second high pressure on the described pump housing 3 medial wall
Oil pocket the 342, the 3rd high-voltage oil cavity 343 and the 4th high-voltage oil cavity 344.First high-voltage oil cavity the 341, second high-voltage oil cavity 342,
The high-pressure oil passage 36 of arc is set between three high-voltage oil cavities 343 and the 4th high-voltage oil cavity 344 with described high-pressure oil outlet 32 even
Connect and communicate.The described high-pressure oil passage 36 of arc is disposed on the pump housing 3 inner surface and connects first high-voltage oil cavity the 341, second high pressure
Oil pocket 342 and the groove of the 3rd high-voltage oil cavity 343, described groove is connected with described high-pressure oil outlet 32, for conveying high-pressure oil.
First oil-way the 351, second oil-way the 352, the 3rd oil-way the 353, the 4th lubrication is set in the described pump housing 3 medial wall
Oil groove 354 and the 5th oil-way 355, be used for sealing and lubricating.
Embodiment 6
As shown in Figure 10, structure is substantially the same manner as Example 5, first high-voltage oil cavity the 341, second high-voltage oil cavity 342,
The high-pressure oil passage 36 arranging rectangle (square) between three high-voltage oil cavities 343 and the 4th high-voltage oil cavity 344 is fuel-displaced with described high pressure
Mouth 32 connection communicates.The described high-pressure oil passage 36 of rectangle (square) is disposed on the pump housing 3 inner surface and connects the first high-voltage oil cavity
341, the second high-voltage oil cavity 342 and groove of the 3rd high-voltage oil cavity 343, described groove is connected with described high-pressure oil outlet 32, uses
In conveying high-pressure oil.First oil-way the 351, second oil-way the 352, the 3rd lubricating oil is set in the described pump housing 3 medial wall
Groove the 353, the 4th oil-way 354 and the 5th oil-way 355, be used for sealing and lubricating.
A kind of crescent gear pump, as Figure 1-4, including a gear ring 8, for internal messing and described gear ring
The driving gear of the part teeth portion engagement of 8, the described pump housing 3 is encapsulated by protecgulum 5, front pump cover 4, bonnet 1 and rear pump cover 2, described
Described gear ring, forms an annular space become narrow gradually, sets in described annular space between 8 and the outside circle portion of driving gear
There is semilune pressure vessel 81.Described semilune pressure vessel 81 includes calking positive and calking bluff bit, and described calking is just
Sheet repeatedly with described calking bluff bit above, pole 83 and shell fragment 82 are set between described calking positive and described calking bluff bit,
Described calking positive and two sides of described calking bluff bit are provided with groove, and described groove is plugged with slide block.Described semilune
The top of pressure vessel 81 connects calking positive and described calking bluff bit described in overhead block 9 can do expansion expansion action, close
Envelope property is more preferable, and pressurize is good.Described driving gear is fixed on wheel shaft 6, by axle bearing in the described pump housing 3.Described
Be provided with pressure plare 13 between the pump housing 3 ring gear 9 and front pump cover 2, be provided with between described pressure plare 13 and front pump cover two corresponding
The sealing gasket of shape seals.
Although this utility model is to be described with reference to specific embodiments, but this description is not meant to this utility model
It is construed as limiting.With reference to description of the present utility model, other change of the disclosed embodiments, for those skilled in the art it is all
It is anticipated that, this change should belong in appended claims limited range.
Claims (6)
1. the pump body structure of a crescent gear pump, it is characterised in that include the high-pressure oil outlet that is arranged on the pump housing and low
It is pressed into hydraulic fluid port, described pump housing medial wall arranges low pressure oil pocket and some high-voltage oil cavities, between described high-voltage oil cavity, height is set
Pressure oil passage is connected with described high-pressure oil outlet.
2. according to the pump body structure of a kind of crescent gear pump described in claim 1, it is characterised in that described high-pressure oil passage
Being disposed on pump housing inner surface and connect the groove of described high-voltage oil cavity, described groove is connected with described high-pressure oil outlet.
3. according to the pump body structure of a kind of crescent gear pump described in claim 2, it is characterised in that described high-pressure oil passage
It is disposed on pump housing inner surface and connects the arc groove of described high-voltage oil cavity.
4. according to the pump body structure of a kind of crescent gear pump described in claim 2, it is characterised in that described high-pressure oil passage
It is disposed on pump housing inner surface and connects the rectangular recess of described high-voltage oil cavity.
5. according to the pump body structure of a kind of crescent gear pump described in claim 1, it is characterised in that also set on the described pump housing
Setting low pumping cavity, described low pressure oil pocket is connected with described low pressure oil-in and communicates.
6. according to the pump body structure of a kind of crescent gear pump described in claim 1, it is characterised in that described pump housing medial wall
Some oil-ways are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620443491.1U CN205805901U (en) | 2016-05-13 | 2016-05-13 | A kind of pump body structure of crescent gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620443491.1U CN205805901U (en) | 2016-05-13 | 2016-05-13 | A kind of pump body structure of crescent gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205805901U true CN205805901U (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620443491.1U Active CN205805901U (en) | 2016-05-13 | 2016-05-13 | A kind of pump body structure of crescent gear pump |
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| CN (1) | CN205805901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840493A (en) * | 2016-05-13 | 2016-08-10 | 广州泰旺精密机械有限公司 | Pump body structure of inside engaged gear pump |
-
2016
- 2016-05-13 CN CN201620443491.1U patent/CN205805901U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840493A (en) * | 2016-05-13 | 2016-08-10 | 广州泰旺精密机械有限公司 | Pump body structure of inside engaged gear pump |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |