CN207333176U - One kind has pressure compensated crescent gear pump - Google Patents
One kind has pressure compensated crescent gear pump Download PDFInfo
- Publication number
- CN207333176U CN207333176U CN201721374806.2U CN201721374806U CN207333176U CN 207333176 U CN207333176 U CN 207333176U CN 201721374806 U CN201721374806 U CN 201721374806U CN 207333176 U CN207333176 U CN 207333176U
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- pressure
- gear pump
- crescent gear
- pump
- sealing valve
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Abstract
The utility model discloses one kind to have pressure compensated crescent gear pump, including protecgulum, driving wheel, driven wheel, bearing, the pump housing, rear cover, seal, water filling port, water pump, sealing valve, pressure apparatus and pressure compensation switch, the rotation for driving driven wheel and its swing link by driving wheel forms pressure differential, therefore transmission liquid and its newton body or non-newtonian fluid, gear pump is equipped with clean-up port and its pressure apparatus, Butterworth Hatch is by water filling port, water pump and its sealing valve composition, the pressure apparatus includes pressure compensation and switchs and formed pressure motor, the sealing valve and the contact position of inner cavity are equipped with multi-layer sealed circle, the sealing ring is fixed on seal, the switch of valve is realized by rotation.Crescent gear pump easy cleaning described in the utility model, for the fluid transport of plurality of liquid and its this solid, and the utility model is equipped with pressure compensation, is preferably transmitted suitable for the liquid under various height and its viscosity.
Description
Technical field
It the utility model is related to gear pump technical field, more particularly to a kind of crescent gear pump.
Background technology
At present, conventional crescent gear pump generally includes the pump housing and external gear and internal gear in the pump housing, external tooth
Wheel and internal gear are meshed against one side, and another side is then separated by swing link.Swing link is by between external gear and internal gear
Non- mesh regional is divided into two spaces, and the space of two gear drop out of gears is oil suction area, and the space for tending to engagement is laminated oil zone.External tooth
Take turns and be generally connected or be made one with transmission shaft, and driven and rotated by driving device.When inside engaged gear pump work, external tooth
Wheel rotates at a high speed and drives internal gear to rotate, and during external gear and internal gear transmission, the oil suction area of two gear drop out of gears is close
Spatial volume increase is closed, forms negative pressure, fluid is sucked from the oil inlet on the pump housing, and two teeth tend to the laminated oil zone confined air of engagement
Between smaller volume, by fluid from the pump housing oil outlet extrude.In use, part is inevitable for crescent gear pump
Wear, cause the damage of product.And easily there is the problem of crescent moon subplate fracture, gear pump noise is big.
On the other hand, crescent gear pump has the advantages that conveying is steady, efficient, noise is small and service life is long
Simultaneously as the residue problem of the permanent and internal liquid of working time is serious, especially for transfer oil, chemical industry, coating,
Newtonian liquid or non-newtonian liquid in the industries such as dyestuff, food, grease, medicine；The species of conveying liquid can be lightweight, volatilization
Property liquid, until heavy, sticky, the even big medium of the viscosity such as semisolid liquid, its applicable range of viscosities can reach 0.2-
1000000cp, it may appear that the insufficient pressure of certain residual sum, because the pressure of blocking or setting height(from bottom) causes output unstable
It is fixed.
Utility model content
Purpose of utility model：In view of the above shortcomings of the prior art, the utility model provides a kind of with pressure compensated
Crescent gear pump, shown gear pump have cleaning and pressure compensation, suitable for different liquids and its flowing material
Transport.
Technical solution：To achieve the above object, the utility model, which provides one kind, has pressure compensated crescent gear pump,
The crescent gear pump includes protecgulum, driving wheel, driven wheel, bearing, the pump housing, rear cover, seal, water filling port, water pump, close
Seal valve, pressure apparatus and pressure compensation switch, the crescent gear pump and driven wheel and its swing link are driven by driving wheel
Rotation form pressure differential, the crescent gear pump is equipped with cleaning device and pressure apparatus and its pressure compensation, described
Pressure apparatus includes seal.
Further, the cleaning device is made of water filling port, water pump and its sealing valve.
Further, the sealing valve, seal and the contact position of inner cavity are equipped with two layers and its more than two layers sealing ring.
Further, the sealing ring is fixed in seal or sealing valve, using rotating mode control valve
Switch.
Further, the pressure apparatus includes pressure compensation switch and pressure motor and its vacuum chamber.
Further, the driving wheel is by step motor control.
Beneficial effect：Its significant effect is the utility model compared with prior art, 1, described in the utility model new
Type crescent gear pump has cleaning function, can input the internal components such as cleaning solution and its oily lubricant by water filling port
Maintenance and maintenance；2nd, in the case of increase output and pressure are needed under the conditions of suitable for different liquids or setting height(from bottom) etc.,
The utility model has pressure compensator, mitigates the load of driver motor；3rd, the utility model is using stepper motor,
Its running speed is adjustable, has good adaptability；4th, the noise of the utility model is small, more efficient.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the schematic cross-section of the utility model.
Embodiment
In order to which technical solution disclosed in the utility model is described in detail, with reference to specific embodiment and Figure of description
It is further elaborated.
As depicted in figs. 1 and 2, it is a kind of that there is pressure compensated crescent gear pump, new crescent gear pump mainly by
Protecgulum 1, driving wheel 2, driven wheel 3, bearing 4, the pump housing 5, rear cover 6, water filling port 7, water pump 8, sealing valve 9, pressure apparatus 10 and pressure
11 composition of force compensating switch, crescent gear pump drive the rotation of driven wheel 3 and its swing link to form pressure by driving wheel 2
Difference, wherein the driving motor that controls of preferable driving wheel 2 is stepper motor, the power supply of its stepper motor and its necessary control are opened
It is ordinary skill in the art means to close component and circuit etc., is not described in detail here.New crescent gear pump master
Be to be equipped with cleaning device and pressure apparatus, cleaning device is made of water filling port 7, water pump 8 and its sealing valve 9, need into
During row cleaning, by water filling port 7 to driving wheel 2 and driven wheel 3, swing link chamber in input cleaning agent either clear water and carry out
Cleaning, after water filling port accesses water source, starts pump working, improves the dynamics of hydraulic pressure and water impact, after cleaning, inside nibble
Close gear pump sealing valve 9 in normal work and, by rotary control switch, realize the partition of irrigation channel and inner cavity chamber, its chamber
It is internally formed pressure differential and realizes transmission of the gear pump to liquid.It is excessive or because setting height(from bottom) and input pipe in the viscosity of liquid
The stepper motor load excessive of the process in road driving wheel 2 caused by meeting, output quantity is smaller, and therefore, we can pass through connection
The driving motor power and controlling switch of pressure apparatus, open pressure compensation switch 11, above pressure compensation switch 11 here
Equipped with seal, seal 9 and the contact position of inner cavity are equipped with two layers of sealing ring, the passage of cut-in pressure, driving motor then
Work, realizes the extraction of air according to the control of speed, promotes the formation of pressure differential, realizes that the suction of gear pump liquid is then defeated
Go out.
Claims (6)
1. one kind has pressure compensated crescent gear pump, it is characterised in that the crescent gear pump includes protecgulum
(1), driving wheel (2), driven wheel (3), bearing (4), the pump housing (5), rear cover (6), water filling port (7), water pump (8), sealing valve (9),
Pressure apparatus (10) and pressure compensation switch (11), the crescent gear pump by driving wheel (2) drive driven wheel (3) and
The rotation of its swing link forms pressure differential, and the crescent gear pump is equipped with cleaning device and pressure apparatus and its pressure is mended
Repay, the pressure apparatus includes seal.
2. one kind according to claim 1 has pressure compensated crescent gear pump, it is characterised in that the cleaning
Device is made of water filling port (7), water pump (8) and its sealing valve (9).
3. one kind according to claim 1 has pressure compensated crescent gear pump, it is characterised in that the sealing
Valve (9), seal and the contact position of inner cavity are equipped with two layers and its more than two layers sealing ring.
4. one kind according to claim 1 has pressure compensated crescent gear pump, it is characterised in that the sealing
Circle is fixed in seal or sealing valve (9), using the switch of rotating mode control valve.
5. one kind according to claim 1 has pressure compensated crescent gear pump, it is characterised in that the pressure
Device includes pressure compensation switch (11) and pressure motor and its vacuum chamber.
6. one kind according to claim 1 has pressure compensated crescent gear pump, it is characterised in that the active
(2) are taken turns by step motor control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721374806.2U CN207333176U (en) | 2017-10-20 | 2017-10-20 | One kind has pressure compensated crescent gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721374806.2U CN207333176U (en) | 2017-10-20 | 2017-10-20 | One kind has pressure compensated crescent gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333176U true CN207333176U (en) | 2018-05-08 |
Family
ID=62365991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721374806.2U Active CN207333176U (en) | 2017-10-20 | 2017-10-20 | One kind has pressure compensated crescent gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333176U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676255A (en) * | 2017-10-20 | 2018-02-09 | 南京蒙福液压机械有限公司 | One kind has pressure compensated crescent gear pump |
| CN110792704A (en) * | 2019-11-14 | 2020-02-14 | 重庆理工大学 | Internally engaged gear pump type circulating cooling magnetorheological fluid variable brake |
-
2017
- 2017-10-20 CN CN201721374806.2U patent/CN207333176U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676255A (en) * | 2017-10-20 | 2018-02-09 | 南京蒙福液压机械有限公司 | One kind has pressure compensated crescent gear pump |
| CN110792704A (en) * | 2019-11-14 | 2020-02-14 | 重庆理工大学 | Internally engaged gear pump type circulating cooling magnetorheological fluid variable brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Inner meshing gear pump with pressure compensation Effective date of registration: 20181128 Granted publication date: 20180508 Pledgee: Nanjing bank Limited by Share Ltd Lishui branch Pledgor: NANJING BLESSED HYDRAULIC MACHINERY CO., LTD. Registration number: 2018320000321 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200417 Granted publication date: 20180508 Pledgee: Nanjing bank Limited by Share Ltd Lishui branch Pledgor: NANJING BLESSED HYDRAULIC MACHINERY Co.,Ltd. Registration number: 2018320000321 |