CN207018194U - A kind of gear oil pump - Google Patents
A kind of gear oil pump Download PDFInfo
- Publication number
- CN207018194U CN207018194U CN201720714186.6U CN201720714186U CN207018194U CN 207018194 U CN207018194 U CN 207018194U CN 201720714186 U CN201720714186 U CN 201720714186U CN 207018194 U CN207018194 U CN 207018194U
- Authority
- CN
- China
- Prior art keywords
- tooth
- gear
- oil pump
- bearing
- force feed
- 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
Links
Abstract
It the utility model is related to oil pump field, more particularly to a kind of gear oil pump.A kind of gear oil pump, including separator, and the pump housing being fixed on separator, and the force feed tooth assembly of pump body is arranged on, and the motor that the driving force feed tooth assembly rotates；Reduction box is connected with the output shaft of the motor, the output end of reduction box connects the force feed tooth assembly.Reduction box built in the gear oil pump, reduction box can increase the output torque of the pump housing, enable the oil pump after improvement to be adapted to extract the larger medium of viscosity.
Description
Technical field
It the utility model is related to oil pump field, more particularly to a kind of gear oil pump.
Background technology
Gear oil pump is in oil pump one kind, and conventional gears oil pump is equipped with a pair of swiveling gears in the pump housing, an active, and one
It is individual passive, by the intermeshing of two gears, it is divided to two independent parts the whole working chamber in pump.A is suction chamber, and B is
Discharge chamber.Gear oil pump in the running driving gear drive driven gear rotation, when gear from when being engaged to disengagement in suction side
（A）With regard to forming parital vacuum, liquid is inhaled into.The liquid being inhaled into is full of each tooth paddy of gear and takes discharge side to（B）, tooth
Wheel enter engagement when liquid be extruded, formed highly pressurised liquid and through pump discharge excavationg pump outside.At present, follow-on gear oil pump
As Authorization Notice No. is recorded for the Chinese patent of " CN102953979B ", be provided with the pump case of the gear oil pump power rotor and from
Turn, wherein, the power rotor is external gear, and driven rotor is internal gear, and driven rotor in the power rotor with nibbling
Close, force feed is realized by coordinating between external gear and internal gear.But the motor shaft in existing oil pump directly connects power transmission shaft reality
Now to pressing oil tooth assembly（That is the combination of external gear and internal gear）Driving, this kind of oil pump directly exports and moment of torsion is smaller, for taking out
When taking the larger medium of viscosity, the obvious deficiency of its power makes ineffective.
The content of the invention
In order to solve the above problems, the purpose of this utility model is to provide a kind of gear oil pump, built in the gear oil pump
Reduction box, reduction box can increase the output torque of the pump housing, enable the oil pump after improvement to be adapted to extract the larger medium of viscosity.
In order to realize above-mentioned purpose, the utility model employs following technical scheme：
A kind of gear oil pump, including separator, and the pump housing being fixed on separator, and it is arranged on pump body
Press oil tooth assembly, and the motor that the driving force feed tooth assembly rotates；It is characterized in that：Connected on the output shaft of the motor
There is reduction box, the output end of reduction box connects the force feed tooth assembly.
Preferably, the reduction box includes tooth rest, and the gear cap being covered on tooth rest, and pass through bearing
The power transmission shaft being positioned on tooth rest, and the change-speed gearing being connected with the inner end of the power transmission shaft；The motor it is defeated
Shaft passes through gear cap, and is meshed provided with output gear with the change-speed gearing；The outer end of the power transmission shaft passes described
Tooth rest is connected with the force feed tooth assembly.In the technical scheme, because there is tooth between output gear and change-speed gearing
Ratio is taken turns, makes gearratio between power transmission shaft and motor output shaft be present, is turned round so as to reduce output speed while provide bigger output
Square.
Preferably, the motor is fixed in the gear cap.
Preferably, the tooth rest includes the disk body section and trunk portion of integrally connected, gear cap is fixed on disk body section；
Axis hole is provided with the trunk portion, bearing gland is fixed with the inner side end of axis hole, axle is fixed with the end face outside of axis hole
Bearing, clutch shaft bearing and second bearing are provided with axis hole between bearing gland and bearing block, power transmission shaft passes through the axis hole, and
Positioned by clutch shaft bearing and second bearing.
Preferably, the force feed tooth assembly includes external tooth and internal tooth, perforation is provided with inside external tooth, internal tooth is arranged on perforation
Interior, the outside flanks of internal tooth are meshed with the perforation side wall；The outer end of the power transmission shaft is connected in the tooth core of internal tooth, and
The internal tooth can be driven to rotate coaxially.
Preferably, forming pump chamber between the pump housing and separator, force feed tooth assembly is arranged in pump chamber, on separator
Provided with the fuel feed hole and oil outlet communicated with the pump chamber；The power transmission shaft passes through and is arranged with oil sealing on the position of the pump housing.
The utility model uses above-mentioned technical proposal, and the technical scheme is related to a kind of gear oil pump, inside the gear oil pump
Motor output shaft on be connected with reduction box, the output end of reduction box connects the force feed tooth assembly.I.e. using reduction box as electricity
Transmission parts between machine and force feed tooth assembly, can reduce output speed and will provide bigger output torque, after making improvement
Oil pump can be adapted to extract the larger medium of viscosity.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings, preferred embodiment of the present utility model is described in further detail.
A kind of gear oil pump as shown in Figure 1, including separator 1, and the pump housing 2, Yi Jishe being fixed on separator 1
Put the force feed tooth assembly inside the pump housing 2, and the motor 3 that the driving force feed tooth assembly rotates.The output shaft of the motor 3
On be connected with reduction box, the output end of reduction box connects the force feed tooth assembly.
The reduction box includes tooth rest 41, and the gear cap 42 being covered on tooth rest 41, and is determined by bearing
Power transmission shaft 43 of the position on tooth rest 41, and the change-speed gearing 44 being connected with the inner end of the power transmission shaft 43.The electricity
Machine 3 is fixed in the gear cap 42, and the output shaft of motor 3 passes through gear cap 42, and provided with output gear 31 and the speed change
Gear 44 is meshed.The outer end of the power transmission shaft 43 passes the tooth rest 41 and is connected with the force feed tooth assembly.The skill
In art scheme, due to there is gear ratio, make between output gear 31 and change-speed gearing 44 power transmission shaft 43 and the output shaft of motor 3 it
Between gearratio be present, so as to reduce output speed while provide bigger output torque.The tooth rest 41 includes integrally connected
Disk body section 41a and trunk portion 41b, gear cap 42 is fixed on disk body section 41a.Axis hole 45, axle are provided with the trunk portion 41b
Bearing gland 46 is fixed with the inner side end in hole 45, bearing block 47, bearing gland 46 are fixed with the end face outside of axis hole 45
Clutch shaft bearing 48 and second bearing 49 are provided with axis hole 45 between bearing block 47, power transmission shaft 43 passes through the axis hole 45, and
Positioned by clutch shaft bearing 48 and second bearing 49.
Form pump chamber between the pump housing 2 and separator 1, force feed tooth assembly is arranged in pump chamber, separator 1 be provided with
The fuel feed hole 11 and oil outlet 12 that the pump chamber communicates.The power transmission shaft 43 passes through and is arranged with oil sealing on the position of the pump housing 2
21.The force feed tooth assembly includes external tooth 51 and internal tooth 52, and the inside of external tooth 51 is provided with perforation, and internal tooth 52 is arranged in perforation, interior
The outside flanks of tooth 52 are meshed with the perforation side wall.The outer end of the power transmission shaft 43 is connected in the tooth core of internal tooth 52,
And the internal tooth 52 can be driven to rotate coaxially.
In summary, the technical scheme is related to a kind of gear oil pump, is connected on the output shaft of motor 3 inside the gear oil pump
There is reduction box, the output end of reduction box connects the force feed tooth assembly.I.e. using reduction box as between motor 3 and force feed tooth assembly
Transmission parts, output speed can be reduced and bigger output torque will be provided, enable the oil pump after improvement be adapted to extract it is glutinous
Spend larger medium.
Claims (6)
1. a kind of gear oil pump, including separator, and the pump housing being fixed on separator, and it is arranged on the pressure of pump body
Oily tooth assembly, and the motor that the driving force feed tooth assembly rotates；It is characterized in that：It is connected with the output shaft of the motor
Reduction box, the output end of reduction box connect the force feed tooth assembly.
A kind of 2. gear oil pump according to claim 1, it is characterised in that：The reduction box includes tooth rest, and covers
The gear cap covered on tooth rest, and the power transmission shaft being positioned at by bearing on tooth rest, and with the power transmission shaft
The change-speed gearing that end is connected；The output shaft of the motor passes through gear cap, and provided with output gear and the change-speed gearing
It is meshed；The outer end of the power transmission shaft passes the tooth rest and is connected with the force feed tooth assembly.
A kind of 3. gear oil pump according to claim 2, it is characterised in that：The motor is fixed in the gear cap.
A kind of 4. gear oil pump according to claim 2, it is characterised in that：The tooth rest includes the disk body of integrally connected
Portion and trunk portion, gear cap are fixed on disk body section；Axis hole is provided with the trunk portion, axle is fixed with the inner side end of axis hole
Pressure cap, bearing block is fixed with the end face outside of axis hole, clutch shaft bearing is provided with the axis hole between bearing gland and bearing block
And second bearing, power transmission shaft passes through the axis hole, and is positioned by clutch shaft bearing and second bearing.
A kind of 5. gear oil pump according to claim 2 or 4, it is characterised in that：It is described force feed tooth assembly include external tooth and
Internal tooth, external tooth inside are provided with perforation, and internal tooth is arranged in perforation, and the outside flanks of internal tooth are meshed with the perforation side wall；Institute
The outer end for stating power transmission shaft is connected in the tooth core of internal tooth, and the internal tooth can be driven to rotate coaxially.
A kind of 6. gear oil pump according to claim 5, it is characterised in that：Pump is formed between the pump housing and separator
Chamber, force feed tooth assembly are arranged in pump chamber, and separator is provided with the fuel feed hole and oil outlet communicated with the pump chamber；The transmission
Axle passes through and is arranged with oil sealing on the position of the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720714186.6U CN207018194U (en) | 2017-06-19 | 2017-06-19 | A kind of gear oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720714186.6U CN207018194U (en) | 2017-06-19 | 2017-06-19 | A kind of gear oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207018194U true CN207018194U (en) | 2018-02-16 |
Family
ID=61485568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720714186.6U Expired - Fee Related CN207018194U (en) | 2017-06-19 | 2017-06-19 | A kind of gear oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207018194U (en) |
-
2017
- 2017-06-19 CN CN201720714186.6U patent/CN207018194U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20180216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |