CN105065257B - A kind of combinating Type Gear Pump of interior external toothing three - Google Patents
A kind of combinating Type Gear Pump of interior external toothing three Download PDFInfo
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- CN105065257B CN105065257B CN201510553946.5A CN201510553946A CN105065257B CN 105065257 B CN105065257 B CN 105065257B CN 201510553946 A CN201510553946 A CN 201510553946A CN 105065257 B CN105065257 B CN 105065257B
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- gusset piece
- gear shaft
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Abstract
The present invention provides a kind of combinating Type Gear Pump of interior external toothing three, including a crescent gear pump and two external gear rotary pumps, the main shaft of the crescent gear pump is connected with one end of the driving gear shaft of the second external gear rotary pump, and the other end of the driving gear shaft of second external gear rotary pump is meshed with the driving gear shaft of the first external gear rotary pump.The present invention is superimposed a crescent gear pump and constitutes three combinating Type Gear Pumps using two external gear rotary pumps, with two oil inlets, three oil-outs, can be used to two kinds of different transmission oils and hydraulic oil be operated, can be applied on Enclosed Multi-Disk Wet Brake fork truck.Other compact conformation, size are small, lightweight, and stable drive, oil suction condition are more good, and stain resistance is stronger, and noise is smaller.
Description
Technical field
The present invention relates to a kind of gear pump, and in particular to a kind of combinating Type Gear Pump of interior external toothing three.
Background technology
Enclosed Multi-Disk Wet Brake is most advanced most reliable brake in the world today, is widely used in mining machine
On tool, but it is not almost applied on medium and small tonnage fork car.This is because Enclosed Multi-Disk Wet Brake needs a circulation
Cooling pump, but limited by fork truck PTO mouthfuls, combination triple gear pump can only be equipped with, one of them is used for working gear pump, one
For brake tooth wheel pump, another is used for drive axle circulating cooling gear pump, and works in two media, transmission oil and hydraulic pressure
Oil.But existing treble pump is all external gear rotary pump, its physical dimension is larger, and noise is big, and stain resistance is poor, is only operable on
In a kind of medium, it is impossible to be applied on equipped Enclosed Multi-Disk Wet Brake fork truck.In addition, by existing three external toothing
Gear pump structure is analyzed, it is found that its physical dimension is larger, it is impossible to be applied on the existing fork truck with wet brake.
A kind of new it is adapted to Enclosed Multi-Disk Wet Brake on fork truck, it is necessary to design and develop regarding to the issue above
The new treble pump of application.
The content of the invention
The purpose of the present invention is exactly to solve above-mentioned problem, there is provided a kind of built up gear of interior external toothing three
Pump, its physical dimension is small, stable drive, small noise, long service life, stain resistance is strong, oil absorption is good, volumetric efficiency is high；
And can be operated in two kinds of different working medias, solving cannot be applied to equipped Enclosed Multi-Disk Wet Brake fork truck
Upper problem.
The technical scheme is that：
A kind of combinating Type Gear Pump of interior external toothing three, including a crescent gear pump and two external gear rotary pumps,
The main shaft of the crescent gear pump is connected with one end of the driving gear shaft of the second external gear rotary pump, second external toothing
The other end of the driving gear shaft of gear pump is meshed with the driving gear shaft of the first external gear rotary pump.
Further scheme, first external gear rotary pump includes the preceding pump housing, is provided with the cavity of the preceding pump housing mutually
The front pump driving gear axle of engagement, front pump driven gear axle；Be located by connecting protecgulum, rear alignment of the front end of the preceding pump housing is connected with
Preceding gusset piece；
Second external gear rotary pump includes middle pump body, and intermeshing middle pump master is provided with the cavity of the middle pump body
Movable gear shaft, middle pump driven gear shaft；Couple after the front end of middle pump body is located by connecting with preceding gusset piece, rear mistake is located by connecting
Plate；
The crescent gear pump includes the rear pump housing, and main shaft, the rear-end of spindle set are provided with the cavity of the rear pump housing
Internal rotor is provided with, the internal rotor engages an outer rotor；The front end of the rear pump housing is located by connecting with rear gusset piece, rear alignment
It is connected with bonnet；
The main shaft is connected by cruciform joint with one end of middle pump driving gear shaft, the other end of middle pump driving gear shaft
It is meshed with front pump driving gear axle.
Further scheme, the rear end of the protecgulum, the two ends of the preceding pump housing, the two ends of preceding gusset piece, the two ends of rear gusset piece
At least four location holes for being located by connecting respectively are offered with the front end of bonnet.
Further scheme, the front pump driving gear axle, front pump driven gear axle, middle pump driving gear shaft and middle pump are driven
Gear shaft periphery is arranged with just back of the body bearing respectively.
Further scheme, the middle pump driving gear shaft and middle pump driven gear shaft are integrally located in solid box, and are led to
Solid box is crossed to be located in middle pump body cavity.
Further scheme, the rear end face of the bonnet is provided with single first oil inlet and the first oil-out, medium from
First oil inlet enters in crescent gear pump, finally comes back for circulation from the first oil-out；The preceding gusset piece is provided with
Second oil inlet and the second oil-out, rear gusset piece are provided with the 3rd oil-out, the second oil inlet on medium the past gusset piece
Into in the first external gear rotary pump, then enter in the second external gear rotary pump through the second oil-out, finally from rear gusset piece
Upper 3rd oil-out comes back for circulation.
The present invention is superimposed a crescent gear pump and constitutes three combinating Type Gear Pumps using two external gear rotary pumps, its
In first and second be external gear rotary pump, hydraulic fluid port enters side and goes out for side, an oil inlet, two oil-outs；3rd is inside engaged gear
Pump, hydraulic fluid port is independent last-in, last-out.The combinating Type Gear Pump of interior external toothing three i.e. of the invention have two oil inlets, three
Oil-out, can be used to be operated in two kinds of different media, such as transmission oil and hydraulic oil, can be applied to close multi-disc wet type system
On dynamic device fork truck.Specially：Negotiable a kind of medium in crescent gear pump, what the medium was covered from after crescent gear pump
Oil inlet enters in crescent gear pump, finally comes back for circulation from oil-out；And outside the first external gear rotary pump and second
Negotiable another medium in intermeshing gear pump, oil inlet of the medium from the past gusset piece enters the first external gear pump
In pump, then the oil-out on premenstrual gusset piece enters in the second external gear rotary pump, is finally returned from oil-out on rear gusset piece
Return and be circulated.
In addition, the external gear rotary pump that wherein preceding two gear pump is used, joins gear pump and uses internal messing cycloid gear afterwards
Pump, compact conformation, size are small, lightweight, available on the existing fork truck with wet brake.In addition, stable drive, oil suction bar
Part is more good, and stain resistance is stronger, and noise is smaller.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is front view of the present invention.
Fig. 2 is the A-A sectional views in Fig. 1.
Fig. 3 is the B-B sectional views in Fig. 1.
Fig. 4 is the C-C sectional views in Fig. 1.
Fig. 5 is the front view of preceding gusset piece of the invention.
Fig. 6 is the D-D sectional views in Fig. 5.
Fig. 7 is the front view of rear gusset piece of the invention.
Fig. 8 is the E-E sectional views in Fig. 7.
Fig. 9 is the front view of bonnet of the invention.
Figure 10 is the F-F sectional views in Fig. 9.
In figure：1- front pump driving gear axles, 2- protecgulums, 3- just carries on the back bearing, 4- side plates, the pump housing before 5-, 6- front pump driven teeth
Wheel shaft, gusset piece before 7-, 8- middle pump bodies, pump driving gear shaft in 9-, pump driven gear shaft in 10-, 11- solid boxs, after 12-
Gusset piece, 13- cruciform joints, the pump housing after 14-, 15- main shafts, 16- internal rotors, 17- outer rotors, 18- bonnets, 19- location holes,
The oil inlets of 20-1 first, the oil inlets of 20-2 second, the oil-outs of 21-1 first, the oil-outs of 21-2 second, the oil-outs of 21-3 the 3rd,
22- oil ducts.
Specific embodiment
A kind of combinating Type Gear Pump of interior external toothing three, including a crescent gear pump and two external gear rotary pumps,
The main shaft of the crescent gear pump is connected with one end of the driving gear shaft of the second external gear rotary pump, second external toothing
The other end of the driving gear shaft of gear pump is meshed with the driving gear shaft of the first external gear rotary pump.
As shown in figure 1, the first external gear rotary pump includes the preceding pump housing 5, intermeshing is provided with the cavity of the preceding pump housing 5
Front pump driving gear axle 1, front pump driven gear axle 6；The front end of the preceding pump housing 5 protecgulum 2, rear alignment that is located by connecting is connected with
Preceding gusset piece 7；
Second external gear rotary pump includes middle pump body 8, and intermeshing middle pump is provided with the cavity of the middle pump body 8
Driving gear shaft 9, middle pump driven gear shaft 10；The front end of middle pump body 8 is located by connecting with preceding gusset piece 7, rear mistake is located by connecting and has
Gusset piece 12 afterwards；
The crescent gear pump includes the rear pump housing 14, and main shaft 15, the main shaft are provided with the cavity of the rear pump housing 14
15 rear ends are arranged with internal rotor 16, and the internal rotor 16 engages an outer rotor 17；The front end of the rear pump housing 14 and rear gusset piece
12 are located by connecting, rear alignment is connected with bonnet 18；
The main shaft 15 is connected by cruciform joint 13 with one end of middle pump driving gear shaft 9, middle pump driving gear shaft 9
The other end is meshed with front pump driving gear axle 1.
Further scheme, the front pump driving gear axle 1, front pump driven gear axle 6, middle pump driving gear shaft 9 and middle pump
The periphery of driven gear shaft 10 is arranged with just back of the body bearing 3 respectively.
The middle pump driving gear shaft 9 and middle pump driven gear shaft 10 are overall in solid box 11, and by entirety
Axle sleeve 11 is in the cavity of middle pump body 8.
Further scheme, as shown in Fig. 2-5,7,9, the rear end of protecgulum 2, the two ends of the preceding pump housing 5, the two ends of preceding gusset piece 7,
The front end of the two ends of gusset piece 12 and bonnet 18 respectively offers at least four location holes 19 for being located by connecting afterwards.
The A-A sectional views in Fig. 1 are illustrated in figure 2, the two ends of the preceding pump housing 5 offer four positioning for being located by connecting
Hole 19, is provided with intermeshing front pump driving gear axle 1, front pump driven gear axle 6 in the cavity of the preceding pump housing 5, and into and out of Jie
The oil duct 22 of matter.
As shown in Fig. 3,5,6, the two ends of preceding gusset piece 7 offer four location holes 19 for being located by connecting, preceding connection
Plate 7 is provided with the second oil inlet 20-2 and the second oil-out 21-2, is offered inside it and is nibbled outside the second oil inlet 20-2 and first
Close the oil duct 22 that communicates of gear pump, and the second oil-out 21-2 respectively with the first external gear rotary pump, the second external gear pump
The oil duct 22 that pump is communicated.The second oil inlet 20-2 on medium the past gusset piece 7 enters in the first external gear rotary pump, Ran Houjing
Second oil-out 21-2 enters in the second external gear rotary pump.
As shown in Fig. 4,7,8, the two ends of rear gusset piece 12 offer four for the location hole 19 being located by connecting, and couple afterwards
Plate 12 is provided with the 3rd oil-out 21-3, and circulation is come back for from the 3rd oil-out 21-3 from matter in the second external gear rotary pump.
As shown in Fig. 9,10, the front end of bonnet 18 offers four location holes 19 for being located by connecting, after bonnet 18
End face is provided with single first oil inlet 20-1 and the first oil-out 21-1, offered in bonnet 18 respectively with the first oil inlet
The oil duct 22 that 20-1 and the first oil-out 21-1 are communicated, medium enters in crescent gear pump from the first oil inlet 20-1, finally
Circulation is come back for from the first oil-out 21-1.
The combinating Type Gear Pump of interior external toothing three of the invention has two oil inlets, three oil-outs, can be used for two kinds
It is operated in different media, such as transmission oil and hydraulic oil, is can be applied on Enclosed Multi-Disk Wet Brake fork truck.
Above example is not limited only to protection scope of the present invention, all to be repaiied based on basic thought of the invention
What is changed or change belongs to protection scope of the present invention.
Claims (5)
1. a kind of combinating Type Gear Pump of interior external toothing three, an including crescent gear pump and two external gear rotary pumps, its
It is characterised by：The main shaft of the crescent gear pump is connected with one end of the driving gear shaft of the second external gear rotary pump, described
The other end of the driving gear shaft of the second external gear rotary pump is meshed with the driving gear shaft of the first external gear rotary pump；
First external gear rotary pump includes the preceding pump housing（5）, the preceding pump housing（5）Cavity in be provided with intermeshing front pump
Driving gear shaft（1）, front pump driven gear axle（6）；The preceding pump housing（5）Front end be located by connecting and have protecgulum（2）, rear alignment connection
There is preceding gusset piece（7）；
Second external gear rotary pump includes middle pump body（8）, the middle pump body（8）Cavity in be provided with intermeshing middle pump
Driving gear shaft（9）, middle pump driven gear shaft（10）；Middle pump body（8）Front end and preceding gusset piece（7）Be located by connecting, rear end it is fixed
Position is connected with rear gusset piece（12）；
The crescent gear pump includes the rear pump housing（14）, the rear pump housing（14）Cavity in be provided with main shaft（15）, the master
Axle（15）Rear end is arranged with internal rotor（16）, the internal rotor（16）Engage an outer rotor（17）；The rear pump housing（14）Before
End and rear gusset piece（12）It is located by connecting, rear alignment is connected with bonnet（18）；
The bonnet（18）Rear end face be provided with single first oil inlet（20-1）With the first oil-out（21-1）, medium is from
One oil inlet（20-1）Into in crescent gear pump, finally from the first oil-out（21-1）Come back for circulation；Connection before described
Fishplate bar（7）It is provided with the second oil inlet（20-2）With the second oil-out（21-2）, rear gusset piece（12）It is provided with the 3rd oil-out
（21-3）, medium the past gusset piece（7）On the second oil inlet（20-2）Into in the first external gear rotary pump, then through second
Oil-out（21-2）Into in the second external gear rotary pump, finally from rear gusset piece（12）Upper 3rd oil-out（21-3）Return into
Row circulation.
2. a kind of combinating Type Gear Pump of interior external toothing three according to claim 1, it is characterised in that：The main shaft
（15）By cruciform joint（13）With middle pump driving gear shaft（9）One end connection, middle pump driving gear shaft（9）The other end with
Front pump driving gear axle（1）It is meshed.
3. a kind of combinating Type Gear Pump of interior external toothing three according to claim 1, it is characterised in that：The protecgulum（2）
Rear end, the preceding pump housing（5）Two ends, preceding gusset piece（7）Two ends, rear gusset piece（12）Two ends and bonnet（18）Front end it is equal
At least four location holes for being located by connecting are offered respectively（19）.
4. a kind of combinating Type Gear Pump of interior external toothing three according to claim 1, it is characterised in that：The front pump is actively
Gear shaft（1）, front pump driven gear axle（6）, middle pump driving gear shaft（9）With middle pump driven gear shaft（10）Periphery is arranged respectively
There is just back of the body bearing（3）.
5. a kind of combinating Type Gear Pump of interior external toothing three according to claim 1, it is characterised in that：The middle pump is actively
Gear shaft（9）With middle pump driven gear shaft（10）It is overall to be located at solid box（11）It is interior, and by solid box（11）In being located at
The pump housing（8）In cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510553946.5A CN105065257B (en) | 2015-09-02 | 2015-09-02 | A kind of combinating Type Gear Pump of interior external toothing three |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510553946.5A CN105065257B (en) | 2015-09-02 | 2015-09-02 | A kind of combinating Type Gear Pump of interior external toothing three |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105065257A CN105065257A (en) | 2015-11-18 |
| CN105065257B true CN105065257B (en) | 2017-06-16 |
Family
ID=54494730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510553946.5A Active CN105065257B (en) | 2015-09-02 | 2015-09-02 | A kind of combinating Type Gear Pump of interior external toothing three |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105065257B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503936A (en) * | 2017-09-05 | 2017-12-22 | 合肥赛源液压件有限公司 | A kind of two hydraulic gear pumps |
| CN108119743A (en) * | 2017-12-14 | 2018-06-05 | 中国航发动力股份有限公司 | A kind of turbine oil pump |
| CN108839563A (en) * | 2018-08-03 | 2018-11-20 | 安徽合力股份有限公司 | A kind of electronic work vehicle transmission device and control system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217123Y (en) * | 1994-11-10 | 1996-01-10 | 青州液压件厂 | Combination triple gear pump |
| DE19615725A1 (en) * | 1996-04-20 | 1997-10-23 | Barnes John S Gmbh | Gear pump for fluids |
| JP2005023834A (en) * | 2003-07-01 | 2005-01-27 | Shimadzu Corp | Multiple hydraulic gear pump |
| CN201827069U (en) * | 2010-10-30 | 2011-05-11 | 辽宁工程技术大学 | Balanced type internal-gearing gear pump |
| CN202926607U (en) * | 2012-10-23 | 2013-05-08 | 阜新路鑫锋液压配件制造有限公司 | Heavy oil conveying device |
| CN204041448U (en) * | 2014-08-21 | 2014-12-24 | 合肥长源液压股份有限公司 | Do not go here and there mutually the triple gear motor-mount pump of oil |
| CN204961290U (en) * | 2015-09-02 | 2016-01-13 | 安徽合力股份有限公司 | Interior external toothing trigeminy combination gear type wheel cylinder |
-
2015
- 2015-09-02 CN CN201510553946.5A patent/CN105065257B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2217123Y (en) * | 1994-11-10 | 1996-01-10 | 青州液压件厂 | Combination triple gear pump |
| DE19615725A1 (en) * | 1996-04-20 | 1997-10-23 | Barnes John S Gmbh | Gear pump for fluids |
| JP2005023834A (en) * | 2003-07-01 | 2005-01-27 | Shimadzu Corp | Multiple hydraulic gear pump |
| CN201827069U (en) * | 2010-10-30 | 2011-05-11 | 辽宁工程技术大学 | Balanced type internal-gearing gear pump |
| CN202926607U (en) * | 2012-10-23 | 2013-05-08 | 阜新路鑫锋液压配件制造有限公司 | Heavy oil conveying device |
| CN204041448U (en) * | 2014-08-21 | 2014-12-24 | 合肥长源液压股份有限公司 | Do not go here and there mutually the triple gear motor-mount pump of oil |
| CN204961290U (en) * | 2015-09-02 | 2016-01-13 | 安徽合力股份有限公司 | Interior external toothing trigeminy combination gear type wheel cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105065257A (en) | 2015-11-18 |
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