CN208010587U - A kind of gear pump of regulating flow quantity - Google Patents
A kind of gear pump of regulating flow quantity Download PDFInfo
- Publication number
- CN208010587U CN208010587U CN201820380610.2U CN201820380610U CN208010587U CN 208010587 U CN208010587 U CN 208010587U CN 201820380610 U CN201820380610 U CN 201820380610U CN 208010587 U CN208010587 U CN 208010587U
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- CN
- China
- Prior art keywords
- gear
- pipeline
- pump
- pump case
- backflash
- 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 is related to field of electromechanical equipment, disclose a kind of gear pump of regulating flow quantity, include the pump case of closed structure, the gear equipped with a pair of meshing are arranged in pump case, one of them is driving gear, another is driven gear；The groove for contacting and fitting closely with the two sides of gear is offered in pump case；Gear can be rotated in groove internal messing, and groove inner wall is bonded closely with the teeth contact portion of gear；The plane formed with two gear central axes perpendicular pipeline one and pipeline two are provided on pump case, pipeline one, pipeline two are connected to recessed grain respectively, and flow control valve is provided on pipeline one；The backflash of connecting pipe one and pipeline two is provided on pump case, backflash is located on the pipeline section wall that the port on pipeline one is set between gear and flow control valve.The utility model uses the output flow of Flux Valve Control gear pump, and by the pressure difference of input terminal and output end in backflash balance gear wheel pump, realizes the purpose of adjustment gear pump discharge.
Description
Technical field
The utility model is related to field of electromechanical equipment, in particular to a kind of gear pumps of regulating flow quantity.
Background technology
Gear pump is to convey liquid by swept volume variation and movement is formed by between pumping cylinder and meshing gear or make
Supercharging drum pump.Two enclosure spaces are formed by two gears, the pump housing and front and rear covers, when gear rotates, are out of gear
The volume in the space of side becomes larger from small, forms vacuum, draws liquid into, the volume in the space of gear engagement side from becoming smaller greatly, and
Liquid is squeezed into pipeline.Suction chamber with discharge chamber is separated by the path of contact of two gears.
When gear pump is used for trandfer fluid, there is minimal amount of fluid loss in pump, because these fluids are used to lubrication axis
Hold and gear both sides, and the pump housing also must not blind-mate, therefore 100% ground of fluid cannot be made to be discharged from outlet.However it pumps
Or it can run well, for most of fluids, can still reach 93%~98% efficiency, therefore defeated as fluid
It send tool and is industrially widely used.
The pressure of the outlet of gear pump depends entirely on the size of resistance at pump discharge, in the certain condition of motor speed
Under, existing gear pump not can be used as variable pump, the i.e. adjustable pump of discharge capacity.But it needs to carry out flow-rate adjustment in most cases, because
This its cannot be satisfied the needs of the fluid conveying of variable displacement.
Utility model content
Based on problem above, the utility model provides a kind of gear pump of regulating flow quantity.The utility model is using stream
Adjustable valve controls the output flow of gear pump, and by being connected to the backflash of input terminal and output end come defeated in balance gear wheel pump
Enter the pressure difference of end and output end, realizes the purpose of adjustment gear pump discharge.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows：
A kind of gear pump of regulating flow quantity includes the pump case of closed structure, the tooth equipped with a pair of meshing is arranged in pump case
Wheel, one of them is driving gear, another is driven gear；It is offered in pump case and contacts with the two sides of gear and closely paste
The groove of conjunction；Gear can be rotated in groove internal messing, and groove inner wall is bonded closely with the teeth contact portion of gear；It is set on pump case
It is equipped with the plane formed with two gear central axes perpendicular pipeline one and pipeline two, pipeline one, pipeline two connect with recessed grain respectively
It is logical, it is provided with flow control valve on pipeline one；The backflash of connecting pipe one and pipeline two is provided on pump case, backflash is located at
Port on pipeline one is set on the pipeline section wall between gear and flow control valve.
In the present invention, pipeline one is output end, and pipeline two is that input terminal is engaging when flow control valve is opened
The counter-rotation cooperation of gear under, fluid is entered by teeth of the pipeline two through gear and the gap between groove in pipeline one,
With the continuous rotation of gear, fluid is constantly extruded in one side of pipeline, is finally discharged by pipeline one；By adjusting flow tune
Valve is saved, the fluid exported in pipeline one is reduced, but the rotating speed of gear is constant, and the amount for being squeezed into the fluid of output end is constant, defeated
The pressure of outlet increases, and extra fluid is delivered to by backflash in pipeline two, and the pressure of input terminal and output end is made to maintain
Balance, the output flow after adjusting stablize outflow.The utility model uses the output flow of Flux Valve Control gear pump, and
By being connected to the backflash of input terminal and output end come the pressure difference of input terminal and output end in balance gear wheel pump, realizes and adjust tooth
Take turns the purpose of pump discharge.
As a preferred mode, flow control valve includes adjusting screw rod, adjusting screw rod one end be hinged with can with its
With respect to the flashboard of sliding between the section of corresponding pipeline one；The other end of adjusting screw rod is located at outside pump case, and is connected with rotation handle
Hand.
As a preferred mode, automatic regulating valve is provided in backflash, automatic regulating valve includes sliding block, is oriented to
Slot；Guide groove is installed on by gained of slotting on pump case, sliding block in guide groove, and spring is provided between sliding block and guide groove.
As a preferred mode, groove both sides are both provided with backflash, and backflash is symmetrically disposed on groove both sides.
Compared with prior art, the utility model has the beneficial effects that：
(1) the utility model use Flux Valve Control gear pump output flow, and by be connected to input terminal with it is defeated
The backflash of outlet carrys out the pressure difference of input terminal and output end in balance gear wheel pump, realizes the purpose of adjustment gear pump discharge；
(2) flow control valve of the utility model includes adjusting screw rod, and adjusting screw rod one end is hinged with can be corresponding
Pipeline one section between with respect to sliding flashboard；The other end of adjusting screw rod is located at outside pump case, and is connected with rotating handles.It can
Flashboard is controlled in the position of pipeline one by rotating handles, realizes the quick adjusting of output flow；
(3) automatic regulating valve is provided in the backflash of the utility model, automatic regulating valve includes sliding block, guide groove；It leads
To slot by gained of slotting on pump case, sliding block is installed in guide groove, and spring is provided between sliding block and guide groove.When passing through flow
When regulating valve controls flow, different output flows makes output end generate different pressure；When output flow is smaller, output end
Pressure is excessive, and fluid compression sliding block makes sliding block be compressed, and the flow in backflash increases, and makes the pressure difference of output end and input terminal
Again reach balance, it is possible to reduce fluid prevents from crossing ambassador's fluid by pump case and other components because of pressure to the pressure of pump case
Junction is oozed out.
(4) the utility model is both provided with backflash by groove both sides, and backflash is symmetrically disposed on groove both sides, can
So that fluid is uniformly back to input terminal by the backflash of both sides, pump case both sides discontinuity is evaded, pump case is caused to deform
And the problem of influencing the service life of gear pump, while can prevent from making pump case vibrations generate noise because of uneven stress.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 pump case, 2 gears, 3 grooves, 4 pipelines one, 5 pipelines two, 6 backflashes, 7 adjusting screw rods, 8 flashboards, 9 rotations
Handle, 10 sliding blocks, 11 guide grooves, 12 springs.
Specific implementation mode
The utility model will be further described below with reference to the accompanying drawings.The embodiment of the utility model includes but unlimited
In the following example.
Embodiment 1：
Referring to Fig. 1, a kind of gear pump of regulating flow quantity includes the pump case 1 of closed structure, and setting is equipped with one in pump case 1
To meshed gears 2, one of them is driving gear 2, another is driven gear 2；Two with gear 2 are offered in pump case 1
The groove 3 that side contacts and fits closely；Gear 2 can be rotated in 3 internal messing of groove, and 3 inner wall of groove is contacted with the teeth of gear 2
Part is bonded close；The plane formed with two gears, 2 central axes perpendicular pipeline 1 and pipeline 25 are provided on pump case 1,
It is characterized in that：Pipeline 1, pipeline 25 are connected to recessed poor 3 respectively, and flow control valve is provided on pipeline 1；It is set on pump case 1
Be equipped with the backflash 6 of connecting pipe 1 and pipeline 25, the backflash 6 be located at the port on pipeline 1 be set to gear 2 with
On pipeline section wall between flow control valve.
In the present invention, pipeline 1 is output end, and pipeline 25 is that input terminal is being nibbled when flow control valve is opened
Under the counter-rotation cooperation of the gear 2 of conjunction, fluid enters pipeline by the gap between teeth of the pipeline 25 through gear 2 and groove 6
In one 4, with the continuous rotation of gear 2, fluid is constantly extruded in one 4 side of pipeline, is finally discharged by pipeline 1；Pass through
Flow control valve is adjusted, the fluid exported in pipeline 1 is reduced, but the rotating speed of gear 2 is constant, is squeezed into the fluid of output end
Amount it is constant, the pressure of output end increases, and extra fluid is delivered to by backflash 6 in pipeline 25, makes input terminal and output
The pressure at end maintains balance, and the output flow after adjusting stablizes outflow.The utility model uses Flux Valve Control gear pump
Output flow, and by being connected to the backflash 6 of input terminal and output end come the pressure of input terminal and output end in balance gear wheel pump
Force difference realizes the purpose of adjustment gear pump discharge.
Embodiment 2：
Referring to Fig. 1, a kind of gear pump of regulating flow quantity includes the pump case 1 of closed structure, and setting is equipped with one in pump case 1
To meshed gears 2, one of them is driving gear 2, another is driven gear 2；Two with gear 2 are offered in pump case 1
The groove 3 that side contacts and fits closely；Gear 2 can be rotated in 3 internal messing of groove, and 3 inner wall of groove is contacted with the teeth of gear 2
Part is bonded close；The plane formed with two gears, 2 central axes perpendicular pipeline 1 and pipeline 25 are provided on pump case 1,
It is characterized in that：Pipeline 1, pipeline 25 are connected to recessed poor 3 respectively, and flow control valve is provided on pipeline 1；It is set on pump case 1
Be equipped with the backflash 6 of connecting pipe 1 and pipeline 25, the backflash 6 be located at the port on pipeline 1 be set to gear 2 with
On pipeline section wall between flow control valve.
Flow control valve includes adjusting screw rod 7, and 7 one end of adjusting screw rod is hinged with can cutting in corresponding pipeline 1
With respect to the flashboard 8 of sliding between face；The other end of adjusting screw rod 7 is located at outside pump case 1, and is connected with rotating handles 9.Rotation can be passed through
Handle 9 controls position of the flashboard 7 in pipeline 1, realizes the quick adjusting of output flow.
The other parts of the present embodiment are same as Example 1, just repeat no more here.
Embodiment 3：
Referring to Fig. 1, a kind of gear pump of regulating flow quantity includes the pump case 1 of closed structure, and setting is equipped with one in pump case 1
To meshed gears 2, one of them is driving gear 2, another is driven gear 2；Two with gear 2 are offered in pump case 1
The groove 3 that side contacts and fits closely；Gear 2 can be rotated in 3 internal messing of groove, and 3 inner wall of groove is contacted with the teeth of gear 2
Part is bonded close；The plane formed with two gears, 2 central axes perpendicular pipeline 1 and pipeline 25 are provided on pump case 1,
It is characterized in that：Pipeline 1, pipeline 25 are connected to recessed poor 3 respectively, and flow control valve is provided on pipeline 1；It is set on pump case 1
Be equipped with the backflash 6 of connecting pipe 1 and pipeline 25, the backflash 6 be located at the port on pipeline 1 be set to gear 2 with
On pipeline section wall between flow control valve.
Automatic regulating valve is provided in backflash 6, automatic regulating valve includes sliding block 10, guide groove 11；Guide groove 11 is by pumping
Obtained by slotting on shell 1, sliding block 10 is installed in guide groove 11, and spring 12 is provided between sliding block 10 and guide groove 11.When passing through
When Flux Valve Control flow, different output flows makes output end generate different pressure；It is defeated when output flow is smaller
It is excessive to go out end pressure, fluid compression sliding block 10 makes sliding block 10 be compressed, and the flow in backflash 6 increases, and makes output end and input
The pressure difference at end reaches balance again, it is possible to reduce fluid to the pressure of pump case, prevent because pressure cross ambassador's fluid by pump case 1 with
The junction of other components is oozed out.
The other parts of the present embodiment are same as Example 1, just repeat no more here.
Embodiment 4：
Referring to Fig. 1, a kind of gear pump of regulating flow quantity includes the pump case 1 of closed structure, and setting is equipped with one in pump case 1
To meshed gears 2, one of them is driving gear 2, another is driven gear 2；Two with gear 2 are offered in pump case 1
The groove 3 that side contacts and fits closely；Gear 2 can be rotated in 3 internal messing of groove, and 3 inner wall of groove is contacted with the teeth of gear 2
Part is bonded close；The plane formed with two gears, 2 central axes perpendicular pipeline 1 and pipeline 25 are provided on pump case 1,
It is characterized in that：Pipeline 1, pipeline 25 are connected to recessed poor 3 respectively, and flow control valve is provided on pipeline 1；It is set on pump case 1
Be equipped with the backflash 6 of connecting pipe 1 and pipeline 25, the backflash 6 be located at the port on pipeline 1 be set to gear 2 with
On pipeline section wall between flow control valve.
Automatic regulating valve is provided in backflash 6, automatic regulating valve includes sliding block 10, guide groove 11；Guide groove 11 is by pumping
Obtained by slotting on shell 1, sliding block 10 is installed in guide groove 11, and spring 12 is provided between sliding block 10 and guide groove 11.
3 both sides of groove are both provided with backflash 6, and backflash 6 is symmetrically disposed on 3 both sides of groove, fluid can be made by two
The backflash 6 of side is uniformly back to input terminal, has evaded 1 both sides discontinuity of pump case, and pump case 1 is caused to deform and influence gear
The problem of service life of pump, while can prevent from making the vibrations of pump case 1 generate noise because of uneven stress.
The other parts of the present embodiment are same as the previously described embodiments, just repeat no more here.
As above it is the embodiments of the present invention.Design parameter in above-described embodiment and embodiment is merely to clear
Utility model verification process is stated by Chu, not limiting the scope of patent protection of the utility model, the patent of the utility model
Protection domain is still subject to its claims, equivalent made by every specification and accompanying drawing content with the utility model
Structure change similarly should be included in the scope of protection of the utility model.
Claims (4)
1. a kind of gear pump of regulating flow quantity includes the pump case (1) of closed structure, setting is equipped with a pair in the pump case (1)
Meshed gears (2), one of them is driving gear (2), another is driven gear (2)；Offer in the pump case (1) with
The groove (3) that the two sides of gear (2) contact and fit closely；The gear (2) can rotate in groove (3) internal messing, described
Groove (3) inner wall is bonded closely with the teeth contact portion of gear (2)；It is provided on the pump case (1) and two gears (2) axis
The perpendicular pipeline one (4) and pipeline two (5) of plane that line is formed, it is characterised in that：The pipeline one (4), pipeline two (5) point
It is not connected to groove (3), flow control valve is provided on the pipeline one (4)；It is provided with connecting pipe one on the pump case (1)
(4) it is located at the port on pipeline one (4) with the backflash of pipeline two (5) (6), the backflash (6) and is set to gear (2) and stream
On pipeline section wall between adjustable valve.
2. a kind of gear pump of regulating flow quantity according to claim 1, it is characterised in that：The flow control valve includes
Adjusting screw rod (7), described adjusting screw rod (7) one end is hinged with can the opposite sliding between the section of corresponding pipeline one (4)
Flashboard (8)；The other end of the adjusting screw rod (7) is located at pump case (1) outside, and is connected with rotating handles (9).
3. a kind of gear pump of regulating flow quantity according to claim 1, it is characterised in that：It is set on the backflash (6)
It is equipped with automatic regulating valve, the automatic regulating valve includes sliding block (10), guide groove (11)；The guide groove is by the institute that slots on pump case
, the sliding block (10) is installed in guide groove (11), and spring (12) is provided between the sliding block (10) and guide groove (11).
4. a kind of gear pump of regulating flow quantity according to claim 1 or 3, it is characterised in that：Groove (3) both sides
It is both provided with backflash (6), and backflash (6) is symmetrically disposed on groove (3) both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820380610.2U CN208010587U (en) | 2018-03-20 | 2018-03-20 | A kind of gear pump of regulating flow quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820380610.2U CN208010587U (en) | 2018-03-20 | 2018-03-20 | A kind of gear pump of regulating flow quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208010587U true CN208010587U (en) | 2018-10-26 |
Family
ID=63889940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820380610.2U Expired - Fee Related CN208010587U (en) | 2018-03-20 | 2018-03-20 | A kind of gear pump of regulating flow quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208010587U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202746A (en) * | 2021-05-31 | 2021-08-03 | 徐州大鼎机械科技有限公司 | Energy-conserving pressure regulating water pump of high-efficient type |
-
2018
- 2018-03-20 CN CN201820380610.2U patent/CN208010587U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202746A (en) * | 2021-05-31 | 2021-08-03 | 徐州大鼎机械科技有限公司 | Energy-conserving pressure regulating water pump of high-efficient type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 Termination date: 20210320 |