CN206487613U - A kind of high performance gear pump - Google Patents
A kind of high performance gear pump Download PDFInfo
- Publication number
- CN206487613U CN206487613U CN201720070600.4U CN201720070600U CN206487613U CN 206487613 U CN206487613 U CN 206487613U CN 201720070600 U CN201720070600 U CN 201720070600U CN 206487613 U CN206487613 U CN 206487613U
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- gear
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- driven shaft
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- bearing
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Abstract
The utility model discloses a kind of high performance gear pump, including the pump housing, motor and the connector being connected between the pump housing and motor, the pump housing surrounds pump chamber by protecgulum and bonnet, intermeshing driving gear and driven gear are provided with pump chamber, the high performance gear pump also includes the driving shaft that simultaneously geo-stationary is coaxially fixed with driving gear, it is connected to the driving shaft fore bearing of driving shaft front end, it is connected to bearing after the driving shaft of active shaft rear end, the driven shaft coaxial with driven gear and the driven shaft bearing assembly being connected with driven shaft, driving shaft fore bearing is located at protecgulum, bearing is located at bonnet after driving shaft；Driven shaft bearing assembly maintenance driven shaft is coaxial with driven gear, and driven shaft can be relatively rotated with driven gear.Gear pump driving shaft of the present utility model is positioned using two, the pattern that driven shaft is positioned using interfix or two, and pinion rotation is stable during running, not beat, and the concentricity of gear and axle, driving gear and motor driving shaft is high.
Description
Technical field
The utility model is related to gear pump technical field.
Background technology
Gear pump so works：Driving gear is directly driven by a motor, and driven gear is driven by driving gear, is relied on
The volume that the active gear teeth engage space with driven gear changes to convey liquid.Two gears rely on protecgulum, bonnet in pump head to limit
The position staggered up and down is scheduled on, and two gear faces are equal, and two gear faces are almost close to protecgulum or bonnet, to realize pole
Small leakage rate.
Based on current technology principle, gear pump mainly has two kinds of forms of implementation：
1. plastic teeth wheel pump, is characterized in that in addition to protecgulum, power transmission shaft and motor, remaining part is working of plastics, but its
Have the disadvantage that, because gear is working of plastics, serious wear after long time running is also worn out seriously, very with the contact surface of protecgulum bonnet
To occurring bond vitrified, cause gear stuck, burn out motor.
2. metal-toothed wheel pump, is characterized in whole pump substantially as made by metal, gear is integrally machined with rotary shaft and formed,
Protecgulum bonnet uses antifriction metal (AFM), is not in stuck problem, and precision is high, and service life is long.But have the disadvantage that cost is high, weight
Weight, difficulty of processing is big.
Utility model content
The purpose of this utility model is to provide a kind of advantage for integrating plastic teeth wheel pump and metal-toothed wheel pump, cost
Low, precision is high and is not in the gear pump of the stuck problem of adhesion.
In order to reach foregoing invention purpose, the utility model employs following technical scheme：A kind of high performance gear pump,
Including the pump housing, motor and the connector being connected between the pump housing and motor, the pump housing surrounds pump chamber, pump chamber by protecgulum and bonnet
Interior to be provided with intermeshing driving gear and driven gear, the high performance gear pump also includes coaxially fixing with driving gear
And the driving shaft of geo-stationary, be connected to the driving shaft fore bearing of driving shaft front end, be connected to after the driving shaft of active shaft rear end
Bearing, the driven shaft coaxial with driven gear and the driven shaft bearing assembly being connected with driven shaft, before driving shaft fore bearing is located at
Bearing is located at bonnet after lid, driving shaft；Driven shaft bearing assembly maintains driven shaft coaxial with driven gear, driven shaft and driven tooth
Wheel can be relatively rotated.
Protecgulum inner face is provided with pit before driving shaft, and driving shaft fore bearing is fixed on before driving shaft in pit；Bonnet appearance
Face is provided with bearing after pit after driving shaft, driving shaft and is fixed on after driving shaft in pit.
The driven shaft bearing assembly includes being connected to the driven shaft fore bearing of driven shaft front end and is connected to after driven shaft
Bearing after the driven shaft at end, driven shaft and the coaxial fixed and geo-stationary of driven gear.
Protecgulum inner face is provided with pit before driven shaft, and bonnet inner face is provided with pit after driven shaft, and driven shaft fore bearing is consolidated
Pit after driven shaft is fixed on due to bearing after pit before driven shaft, driven shaft.
The driven shaft bearing assembly includes the driven shaft gear bearing for being placed in driven gear center, and driven shaft sleeve is connected to
Driven shaft gear bearing inner race.
Protecgulum inner face is provided with pit before driven shaft to accommodate the preceding shaft end of driven shaft, and bonnet inner face is provided with recessed after driven shaft
Cheat to accommodate shaft end after driven shaft.
Preferably, protecgulum inner face is fixed with a protecgulum steel plate, protecgulum steel plate and driving gear first end face and driven tooth
Take turns first end face smooth smooth；Bonnet inner face is fixed with a bonnet steel plate, bonnet steel plate with driving gear second end face and from
Moving gear second end face is smooth smooth.
Protecgulum steel plate and bonnet steel plate offer perforation, so that driving shaft and driven shaft are passed through.
Protecgulum inner face is provided with the front spring pit for being used for housing protecgulum steel plate, before being installed on to protecgulum steel plate interference fit
In steel plate pit；Bonnet inner face is provided with the rear steel plate pit for being used for housing bonnet steel plate, and bonnet steel plate interference fit ground is installed
In in rear steel plate pit.
Preferably, bearing and driven shaft bearing assembly are sliding bearing after the driving shaft fore bearing, driving shaft.
Gear pump driving shaft of the present utility model is positioned using two, the mould that driven shaft is positioned using interfix or two
Formula, pinion rotation is stable during running, not beat, and the concentricity of gear and axle, driving gear and motor driving shaft is high.In addition, this
The gear pump critical piece of utility model is formed using plastic injection, cheap, simple in construction, and lightly, difficulty of processing is low；
The front and rear covers of gear pump and Gear Contact Surface are provided with smooth stainless steel plate, the stainless steel plate that gear is close to front and rear covers rotate and
Will not occur melting adhesion, thus leakage rate is small, hydraulic pressure is high, and long-play also will not be stuck, significantly increases the service life.Plus
Fast degradation result shows that the service life of gear pump can be increased by 2 times by the utility model.
Brief description of the drawings
Fig. 1 is the utility model external structure axonometric drawing.
Fig. 2 is the utility model cross section cut-away view.
Fig. 3 is the explosive view of the utility model embodiment one.
Fig. 4 is longitudinal cut-away view of the utility model embodiment one.
Fig. 5 is the explosive view of the utility model embodiment two.
Fig. 6 is longitudinal cut-away view of the utility model embodiment two.
Wherein, the wherein title of numerals：
1- motors, 2- connectors, 3- tightly locks screw, 4- protecgulums, 401- pits；402- protecgulum steel plates；Before 403- driving shafts
Bearing；Bearing after 404- pump chamber sealing rings, 5- bonnets, 502- driving shafts, 503- bonnet steel plates, 6- gears, 601- driving gears,
6011- driving shafts, 602- driven gears, 6021- driven shafts, 6022- driven shaft gear bearings, 7- shaft couplings, 801- driven pulleys
Fore bearing；Bearing after 802- driven pulleys
Embodiment
Embodiment one
It is gear pump described in the utility model as shown in Fig. 1~2, it includes motor 1, connector 2 and the pump housing.Wherein,
Protecgulum 4 and bonnet 5 surround pump chamber, are fixed together by four tight lock screw 3 concatenations, are locked at the front of connector 2.Motor 1
The rear of connector is fixed on by two machine silk screws.Provided with intermeshing and the equal driving gear 601 of end face in pump chamber
With driven gear 602, and driving shaft 6011, driven shaft 6022, etc..It is separated out in pump chamber by the path of contact of two gears
Suction chamber and discharge chamber, the both sides up and down of bonnet 5 are respectively provided with the inlet that connect with suction chamber and connected with discharging chamber
Liquid outlet.
As shown in figure 3, driving shaft 6011 is fixed together with driving gear 601.In implementation, metal can be manufactured
Driving shaft 6011 is put into the injection mold of driving gear 601 to be molded jointly with driving gear 601 as mold insert and is solidified togather.
Forward and backward two end faces for protruding from driving gear 601 of driving shaft 6011, and the rear end of driving shaft is configured to flat, with connection
Axle device 7 is connected.The inner face of protecgulum 4 is provided with driving shaft fore bearing 403.During manufacture, the driving shaft fore bearing that metal is manufactured
403, in the injection mold for being put into protecgulum 4, the injection of driving shaft fore bearing 403 is solidified in the inner face of protecgulum 4.Driving shaft 6011
Coordinate with driving shaft fore bearing 403 to be isometrical, can coaxially be relatively rotated when by minimal drag.Driving shaft fore bearing ensures
The output shaft co-rotation of driving gear 601 all the time with motor 1, is not in that gear beat is rotated.
Bonnet outer face (i.e. the dorsad one side of gear) is used to house bearing 502 after driving shaft provided with a pit.Driving shaft
Rear portion penetrates bonnet 5, is connected to bearing 502 after driving shaft.Bearing 502 is rubber shaft bearing after driving shaft, is sealed, and is prevented
Only the water in pump chamber flows out along the external part of driving shaft 6011.Main fulcrum rear portion is exported after stretching out bonnet by shaft coupling 7 with motor 1
Axle is connected.
The contact site of bonnet 5 and protecgulum 4 is provided with a circular pit, for placing pump chamber sealing ring 404.When tight lock screw
After the pump housing and connector 2 are locked, sealing function is played in the extrusion of pump chamber sealing ring 404, prevents the leaked liquid of pump chamber.
Driven shaft is maintained at coaxial state by driven shaft bearing assembly and driven gear.Driven shaft bearing group in this example
Part includes driven shaft gear bearing 6022, and it is installed on the center of driven gear 602., can be by driven shaft gear bearing during making
6022 are placed in driven gear manufacture mould, solidify the heart wherein when driven gear is molded.Therefore, driven gear 602 with it is interior
Geo-stationary between the driven shaft gear bearing 6022 put, driven shaft gear bearing 6022 can be carried out smoothly with driven shaft 6021
Relatively rotate.
In view of manufacturing cost and sealing property requirement, protecgulum 4, bonnet 5 are made of plastic material.In order that gear is transported
The phenomenon of melting adhesion does not occur for the part contacted when turning with gear face, therefore protecgulum 4 is in the portion contacted with gear front end face
Position sets one block of protecgulum steel plate.The way of this example is the inner face setting pit 401 in protecgulum 4, and dimple size is matched with protecgulum
Steel plate 402, both are tight fit.Protecgulum steel plate 402 can be assembled in the pit 401 of protecgulum by way of plane is pressed.
The one side of protecgulum steel plate 402 towards gear is mirror finish.Protecgulum steel plate offers perforation, for driving shaft fore bearing 403 and
Driven shaft front end is passed through.Similarly, bonnet steel plate 503 is fastened on bonnet inner face by way of plane is pressed.Bonnet steel plate 503
Also perforation is offered, is passed through for driving shaft and driven shaft.
Motor 1 drives shaft coupling 7 and then drives driving shaft 6011 to rotate, and driving shaft rotation is that driving gear is rotated, actively
The rotation of gear has driven the rotation of driven gear, so that being inhaled into by conveying liquid from inlet, is discharged from liquid outlet.
During driven gear is rotated, driven shaft does not follow driven gear to rotate, and functions only as driven gear being maintained at primitive axis line,
The effect for the stable rotation not deflected.
Protecgulum, bonnet, driving gear, driven gear are plastic part, are connected with driving gear 601 and driven gear 602
Tactile protecgulum steel plate 402 and bonnet steel plate 503 are then stainless steel plate material, and with the contact surface of gear after mirror finish processing
Gear, gap very little can be close to, it is ensured that leakage rate very little, gear can be close to stainless steel plate minute surface and carry out high-speed rotation.It is stainless
Steel plate has higher hardness and flatness with respect to rubber gear, even if long-play, gear will not also be melted, it is to avoid
Viscous dead image.
Embodiment two
Such as Fig. 5~6 show second of embodiment of this example, and this example is substantially similar to the structure of embodiment one, includes
Motor 1, connector 2 and the pump housing.Wherein, protecgulum 4 and bonnet 5 surround pump chamber, are fixed together by four tight lock screw 3 concatenations,
It is locked at the front of connector 2.Motor 1 is fixed on the rear of connector by two machine silk screws.It is provided with and mutually nibbles in pump chamber
The driving gear 601 and driven gear 602 of conjunction, and driving shaft 6011, driven shaft 6022, etc..Pass through two teeth in pump chamber
The path of contact of wheel is separated out suction chamber and discharge chamber, and the both sides up and down of bonnet 5 are respectively provided with the inlet connected with suction chamber
And the liquid outlet connected with discharge chamber.
Difference from Example 1 is：Driven shaft, the annexation of driven gear and driven shaft bearing assembly and implementation
Example 1 is different.Driven shaft is maintained at coaxial state by driven shaft bearing assembly and driven gear, and the driven shaft in this example is used
The mode of two ends positioning remains coaxial with driven gear maintenance.Driven shaft bearing assembly includes driven shaft fore bearing 801 and driven
Bearing 802 after axle, and eliminate the gear-bearing positioned at driven gear center.Driven shaft 6021 is solidificated in driven gear 602
Together.The front end face of protecgulum 4 is provided with driven shaft fore bearing 801, and the rear end face of bonnet 5 is provided with bearing 802 after driven shaft.Driven shaft
6021 are interference fitted with the inner ring of bearing 802 after driven shaft fore bearing 801 and driven shaft.
Protecgulum steel plate 402 offers perforation, so that driving shaft fore bearing 403 and driven shaft fore bearing 801 are passed through.Similarly,
Bonnet steel plate 503 also offers perforation, is passed through for bearing after driving shaft and driven shaft.
Driving shaft and driven shaft are positioned using two, and pinion rotation is stable during running, will not beat, gear and axle, master
The concentricity of moving gear and motor driving shaft is high.
The utility model includes but is not limited to above-described embodiment and content shown in the drawings, and other all are new with this practicality
There is the technical scheme of type the product structure of identical essentiality content to each fall within protection domain of the present utility model.
Claims (10)
1. a kind of high performance gear pump, including the pump housing, motor and the connector that is connected between the pump housing and motor, its feature exists
In：The pump housing is surrounded by protecgulum and bonnet and intermeshing driving gear and driven gear, the height is provided with pump chamber, pump chamber
The gear pump of performance also includes coaxially fixing with driving gear and the driving shaft of geo-stationary, the active for being connected to driving shaft front end
Axle fore bearing, it is connected to bearing after the driving shaft of active shaft rear end, the driven shaft coaxial with driven gear and is connected with driven shaft
Driven shaft bearing assembly,
Driving shaft fore bearing is located at bearing after protecgulum, driving shaft and is located at bonnet；Driven shaft bearing assembly maintain driven shaft with it is driven
Gear is coaxial, and driven shaft can be relatively rotated with driven gear.
2. high performance gear pump according to claim 1, it is characterised in that：Protecgulum inner face is provided with recessed before driving shaft
Hole, driving shaft fore bearing is fixed on before driving shaft in pit；Exterior surface is provided with bearing after pit after driving shaft, driving shaft and consolidated afterwards
Due to after driving shaft in pit.
3. high performance gear pump according to claim 1, it is characterised in that：The driven shaft bearing assembly includes connection
In driven shaft front end driven shaft fore bearing and be connected to bearing after the driven shaft of driven shaft rear end, driven shaft is same with driven gear
Axle is fixed and geo-stationary.
4. high performance gear pump according to claim 3, it is characterised in that：Protecgulum inner face is provided with recessed before driven shaft
Hole, bonnet inner face is provided with pit after driven shaft, and driven shaft fore bearing, which is fixed on bearing after pit before driven shaft, driven shaft, to be fixed
In pit after driven shaft.
5. high performance gear pump according to claim 1, it is characterised in that：The driven shaft bearing assembly includes placement
Driven shaft gear bearing in driven gear center, driven shaft sleeve is connected to driven shaft gear bearing inner race.
6. high performance gear pump according to claim 5, it is characterised in that：Protecgulum inner face is provided with pit before driven shaft
To accommodate the preceding shaft end of driven shaft, bonnet inner face is provided with after driven shaft pit to accommodate shaft end after driven shaft.
7. high performance gear pump according to claim 1, it is characterised in that：Protecgulum inner face is fixed with a protecgulum steel
Plate, protecgulum steel plate and driving gear first end face and driven gear first end face are smooth smooth；After bonnet inner face is fixed with one
Lid steel plate, bonnet steel plate and driving gear second end face and driven gear second end face are smooth smooth.
8. high performance gear pump according to claim 7, it is characterised in that：Protecgulum steel plate and bonnet steel plate are offered and worn
Hole, so that driving shaft and driven shaft are passed through.
9. high performance gear pump according to claim 7, it is characterised in that：Protecgulum inner face, which is provided with, to be used to house protecgulum
The front spring pit of steel plate, is installed in front spring pit to protecgulum steel plate interference fit；Bonnet inner face, which is provided with, to be used to house
The rear steel plate pit of bonnet steel plate, is installed in rear steel plate pit to bonnet steel plate interference fit.
10. high performance gear pump according to claim 1, it is characterised in that：After the driving shaft fore bearing, driving shaft
Bearing and driven shaft bearing assembly are sliding bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720070600.4U CN206487613U (en) | 2017-01-18 | 2017-01-18 | A kind of high performance gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720070600.4U CN206487613U (en) | 2017-01-18 | 2017-01-18 | A kind of high performance gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206487613U true CN206487613U (en) | 2017-09-12 |
Family
ID=59767448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720070600.4U Active CN206487613U (en) | 2017-01-18 | 2017-01-18 | A kind of high performance gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206487613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973384A (en) * | 2017-12-28 | 2019-07-05 | 比亚迪股份有限公司 | Oil pump component and electric oil pump assembly and vehicle with it |
-
2017
- 2017-01-18 CN CN201720070600.4U patent/CN206487613U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973384A (en) * | 2017-12-28 | 2019-07-05 | 比亚迪股份有限公司 | Oil pump component and electric oil pump assembly and vehicle with it |
| CN109973384B (en) * | 2017-12-28 | 2021-06-18 | 比亚迪股份有限公司 | Oil pump assembly and electric oil pump assembly and vehicle with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee after: Hanyu Group Co., Ltd. Address before: 529000 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee before: Jiangmen Idear-hanyu Electrical Joint-stock Co., Ltd. |
|
| CP03 | Change of name, title or address |