CN106996371A - A kind of synchronous gear pump of discharge capacity - Google Patents
A kind of synchronous gear pump of discharge capacity Download PDFInfo
- Publication number
- CN106996371A CN106996371A CN201710238795.3A CN201710238795A CN106996371A CN 106996371 A CN106996371 A CN 106996371A CN 201710238795 A CN201710238795 A CN 201710238795A CN 106996371 A CN106996371 A CN 106996371A
- Authority
- CN
- China
- Prior art keywords
- gear
- driven
- driving
- shaft
- driving gear
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
- F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
Abstract
The present invention relates to a kind of synchronous gear pump of discharge capacity, including main pump body and gear shaft, main pump body includes protecgulum, intermediate and bonnet, it is provided with through hole in the middle part of protecgulum and the first driving shaft is being equipped with, back-up ring is disposed with the horizontal direction between the first driving shaft and protecgulum, outside framework oil seal and the first active bushing, in the middle part of first driving shaft, first driving gear is installed in intermediate, spline is provided with the tail end of the first driving shaft and be connected by spline with the second driving shaft and the second driving gear is installed on axle, the first driven gear engaged with the first driving gear is provided with below first driving gear and key is connected with first driven shaft in the middle, the second driven gear engaged with the second driving gear is provided with below second driving gear, second driven gear key is connected with second driven shaft, in the first driving gear, second driving gear, first driven gear, second driven gear is provided with side plate between intermediate respectively.
Description
Technical field
The invention belongs to oil pump field, more particularly to a kind of synchronous gear pump of discharge capacity.
Background technology
The pump is used for mini-excavator, and excavator drives crawler travel by the hydraulic motor of both sides two, invented as one
Duplex gear pump, wherein front pump band side hydraulic motor, rear pump band opposite side hydraulic motor, excavator can not be run when walking
Inclined phenomenon, it requires the front and rear pump of gear pump, flow should be consistent, and duplex gear pump is not easily controlled stream in process of production
Amount is consistent, it is therefore desirable to invent a kind of synchronous gear pump of discharge capacity.
The content of the invention
The present invention provides a kind of discharge capacity synchronous gear pump to solve technical problem present in known technology.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：A kind of discharge capacity synchronization
Gear pump, including main pump body and gear shaft, main pump body include protecgulum, intermediate and bonnet, protecgulum) middle part is provided with through hole and logical
The first driving shaft is equipped with crossing, back-up ring, outside framework oil seal is disposed with the horizontal direction between the first driving shaft and protecgulum
With the first active bushing, the first driving gear is installed in the middle part of the first driving shaft, in intermediate, opened in the tail end of the first driving shaft
There is external splines, the first driving shaft is connected with the second driving shaft internal spline by the external splines of tail end, is provided with the second driving shaft
Second driving gear, is provided with active bushing between the first driving shaft and intermediate, be provided with below the first driving gear and the
First driven gear of one driving gear engagement, key is connected with first driven shaft, first driven shaft in the middle part of the first driven gear
It is provided between intermediate below the first driven bushing, the second driving gear and is provided with second engaged with the second driving gear
Driven gear, the second driven gear key is connected with second driven shaft, second is provided between second driven shaft and intermediate driven
Bushing, sets between intermediate respectively in the first driving gear, the second driving gear, the first driven gear, the second driven gear
Side plate is equipped with, and seal is provided between side plate and intermediate, the gap between side plate and gear is 0.035mm..
Advantages and positive effects of the present invention are：The invention provides a kind of synchronous gear pump of discharge capacity, the present invention passes through
The tail end of first driving shaft is provided with into spline to connect with the second driving shaft, the first driving gear and second are synchronously driven during rotation
Driving gear synchronous axial system, so that the first driven gear and the second driven gear synchronous axial system are driven, by being arranged on the first master
It is provided with side plate and side plate between moving gear, the second driving gear, the first driven gear, the second driven gear and intermediate
Gap between seal and each gear ensures axial amount of leakage always for 0.035mm, so as to ensure the efficiency one of whole pump
Directly, so as to meet in rated speed 2000r/min, rated pressure 20MPa, under the conditions of temperature 50, front and rear pump discharge control exists
1%, reached customer requirement excavator 3.9-5.1km/h speed traveling under, in traveling 30m, sideslip≤1.5m.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1st, protecgulum；2nd, intermediate；3rd, bonnet；4th, the first driving shaft；5th, outside framework oil seal；6th, back-up ring；7th, first actively
Bushing；8th, the first driving gear；9th, the second driving shaft；10th, the first driven bushing；11st, first driven shaft；12nd, the first driven tooth
Wheel；13rd, external splines；14th, the second driving gear；15th, the second driven gear；16th, second driven shaft；17th, the second driven bushing；
18th, side plate；19th, seal.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
In order to further understand the content, features and effects of the present invention, it is as follows hereby to lift following examples detailed description：
Fig. 1 is referred to, a kind of synchronous gear pump of discharge capacity of the invention includes main pump body and gear shaft, before main pump body includes
Lid 1, intermediate 2 and bonnet 3, the middle part of protecgulum 1 are provided with through hole and the first driving shaft 4 are being equipped with, in the first driving shaft
It is disposed with the horizontal direction between 4 and protecgulum 1 in back-up ring 6, the active bushing 7 of outside framework oil seal 5 and first, the first driving shaft 4
First driving gear 8 is installed in portion, intermediate 2, external splines 13 is provided with the tail end of the first driving shaft 4, the first driving shaft 4 leads to
The external splines 13 for crossing tail end is connected with the internal spline of the second driving shaft 9, and the second driving gear 14 is provided with the second driving shaft 9, the
The first active bushing 7 is provided between one driving shaft 4 and intermediate 2, the lower section of the first driving gear 8 is provided with and the first master
The first driven gear 12 that moving gear 8 is engaged, is connected with first driven shaft 11, first is driven in the middle part key of the first driven gear 12
The first driven bushing 10 is provided between axle 11 and intermediate 2, the lower section of the second driving gear 14 is provided with and the second driving gear
Second driven gear 15 of 14 engagements, the key of the second driven gear 15 is connected with second driven shaft 16, second driven shaft 16 and centre
The second driven bushing 17 is provided between body 2, in the first driving gear 8, the second driving gear 14, the first driven gear 12,
Two driven gears 15 are provided with side plate 18 between intermediate 2 respectively, and are provided with seal between side plate and intermediate 2
19, the gap between the side plate 18 and gear is 0.035mm.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (1)
1. a kind of synchronous gear pump of discharge capacity, it is characterized in that：Including main pump body and gear shaft, the main pump body include protecgulum (1),
It is provided with through hole in the middle part of intermediate (2) and bonnet (3), the protecgulum (1) and the first driving shaft (4) is being equipped with, the
Back-up ring (6), outside framework oil seal (5) and the first active bushing are disposed between one driving shaft (4) and protecgulum (1) in the horizontal direction
(7) the first driving gear (8), the tail end in the first driving shaft (4), are installed in the middle part of the first driving shaft (4), in intermediate (2)
External splines (13) is provided with, the first driving shaft (4) is connected by the external splines (13) of tail end with the second driving shaft (9) internal spline, the
Second driving gear (14) is installed on two driving shafts (9), is provided with and actively serves as a contrast between the first driving shaft (4) and intermediate (2)
Cover (7), the first driven gear (12) engaged with the first driving gear (8) is provided with below first driving gear (8),
Key is connected with first driven shaft (11) in the middle part of first driven gear (12), is set between first driven shaft (11) and intermediate (2)
There is the first driven bushing (10), it is driven that the second driving gear (14) lower section is provided with second engaged with the second driving gear (14)
Gear (15), the second driven gear (15) key is connected with second driven shaft (16), between second driven shaft (16) and intermediate (2)
The second driven bushing (17) is provided with, in the first driving gear (8), the second driving gear (14), the first driven gear (12),
Two driven gears (15) are provided with side plate (18) between intermediate (2) respectively, and are provided between side plate and intermediate (2)
Seal (19), gap of the side plate (18) between gear is 0.035mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710238795.3A CN106996371A (en) | 2017-04-13 | 2017-04-13 | A kind of synchronous gear pump of discharge capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710238795.3A CN106996371A (en) | 2017-04-13 | 2017-04-13 | A kind of synchronous gear pump of discharge capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106996371A true CN106996371A (en) | 2017-08-01 |
Family
ID=59434045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710238795.3A Pending CN106996371A (en) | 2017-04-13 | 2017-04-13 | A kind of synchronous gear pump of discharge capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106996371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420299A (en) * | 2017-09-07 | 2017-12-01 | 合肥长源液压股份有限公司 | A kind of multi-joint heavy-duty gear pump of lightweight structure design |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211506Y (en) * | 1994-11-10 | 1995-11-01 | 青州液压件厂 | Improved two linkage gear pump |
| JPH09209944A (en) * | 1996-01-31 | 1997-08-12 | Kayaba Ind Co Ltd | Multiple gear pump |
| CN102155402A (en) * | 2011-03-26 | 2011-08-17 | 长治液压有限公司 | Double-oil-outlet speed variable gear pump |
| JP4872845B2 (en) * | 2007-07-27 | 2012-02-08 | 株式会社豊田自動織機 | Gear pump |
| CN202597095U (en) * | 2012-05-31 | 2012-12-12 | 阜新海普液压制造有限公司 | Triple high-pressure gear pump |
-
2017
- 2017-04-13 CN CN201710238795.3A patent/CN106996371A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2211506Y (en) * | 1994-11-10 | 1995-11-01 | 青州液压件厂 | Improved two linkage gear pump |
| JPH09209944A (en) * | 1996-01-31 | 1997-08-12 | Kayaba Ind Co Ltd | Multiple gear pump |
| JP4872845B2 (en) * | 2007-07-27 | 2012-02-08 | 株式会社豊田自動織機 | Gear pump |
| CN102155402A (en) * | 2011-03-26 | 2011-08-17 | 长治液压有限公司 | Double-oil-outlet speed variable gear pump |
| CN202597095U (en) * | 2012-05-31 | 2012-12-12 | 阜新海普液压制造有限公司 | Triple high-pressure gear pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420299A (en) * | 2017-09-07 | 2017-12-01 | 合肥长源液压股份有限公司 | A kind of multi-joint heavy-duty gear pump of lightweight structure design |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170801 |
|
| RJ01 | Rejection of invention patent application after publication |