CN1007646B - Radial-movable variable-dispacement gear pump (motor) - Google Patents
Radial-movable variable-dispacement gear pump (motor)Info
- Publication number
- CN1007646B CN1007646B CN 85109203 CN85109203A CN1007646B CN 1007646 B CN1007646 B CN 1007646B CN 85109203 CN85109203 CN 85109203 CN 85109203 A CN85109203 A CN 85109203A CN 1007646 B CN1007646 B CN 1007646B
- Authority
- CN
- China
- Prior art keywords
- gear
- motor
- pump
- stator
- variable
- 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
Links
Images
Landscapes
- Rotary Pumps (AREA)
- Hydraulic Motors (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The present invention relates to a volume type pump (motor) which belongs to the technical field of the hydraulic drive of a machine class, particularly to a height balanced gear pump (motor) using a gear top surface as support. The present invention is characterized in that the height balanced gear pump (motor) is provided with a variable control device, a lateral plate is formed by the splicing of two blocks with unequal external diameters, and a stator which can move in a radial way is arranged between a driven gear and a pump casing. The stator is moved by a variable mechanism, and the stator drives the gear to move together to cause the overlapping coefficient and the center distance of the gear engagement to be changed. Within the range that the overlapping coefficient is from maximum to one, the smaller the center distance is, the larger the discharge capacity is; on the contrary, the discharge capacity is small. The internal engagement type variable principle is the same as that of the volume type pump (motor).
Description
The present invention relates to a kind of gear pump (motor), particularly about gear pump with variable capacity (motor).
Well-known gear pump (motor), all be can not variable gear pump (motor), the using scope of gear pump is restricted.
The purpose of this invention is to provide a kind of gear pump with variable capacity (motor).
The present invention realizes variable by the centre distance that changes two intermeshed gear.
According to the present invention, a kind of gear pump with variable capacity is provided, motor, it includes housing, transmission shaft, the driving gear that is positioned on the transmission shaft and rotates together thereupon, with the intermeshing driven gear of driving gear, leading, the end face of driven gear is provided with 4 side plates, described two gears are involute gear, the centre distance of two gears can change, between above-mentioned driven gear and housing, stator component is housed, also be provided with a stroking mechanism on housing, this stroking mechanism can move radially the said stator element, like this, stator component drives above-mentioned driven gear and moves radially together, the centre distance of two intermeshed gear is changed, and the gear pump delivery changes thereupon, has reached the purpose of variable.
Characteristics of the present invention are stepless variables of realizing, adopt big rigidity control radial deformation, adopt highly accurate radial force balanced measure, the big rotating speed long-life of the pressure of pump (motor), long cost was low, with Variable plunger pump variable vane pump ratio, has the high unique advantage that is more suitable for producing in enormous quantities simple in structure of performance parameter.
Below in conjunction with accompanying drawing the present invention is done detailed explanation.
Accompanying drawing 1 is the longitudinal sectional view of gear pump with variable capacity of the present invention.
Accompanying drawing 2 is that the y-y of accompanying drawing 1 is to sectional view.
With reference to Fig. 1, Fig. 2, this gear pump with variable capacity of the present invention (motor) is to be 85109202 at application number, designs on the basis of its denomination of invention for " Topland is made the radial equilibrium gear pump (motor) of supporting ".It is by transmission shaft 1, driving gear 2, driven gear 3, initiatively front side plate 4, active back side panel 5, driven front side plate 6, driven back side panel 7, " O " RunddichtringO 8 and 26, annular retaining ring 9 and 27, stator 10, adjusting screw rod 11, " O " RunddichtringO 12, locking nut 13, ring washer 14,16,17,20, radial ball bearing 15, oil sealing 18, supporting ring 19, the pump housing 21, bonnet 22, screw 23, packing ring 24 formations such as grade; Driving and driven side plate is in different size, is provided with stator and variable device, side plate 6,7, on have hole 34.
The working principle that the present invention moves radially gear pump with variable capacity is: when adjusting screw rod leaves stator, because the effect of stator radial equilibrium hydraulic coupling, stator is being with driven gear away from driving gear automatically, two intermeshed gear break away from original engagement, stator and driven gear move radially together and lean against on the adjusting screw rod, at this moment driving and driven Gear center reduces discharge capacity apart from increase; Otherwise, screw rod heads on stator makes driven gear near driving gear, and the centre distance of the relative two gear initial engagement states of two-wheeled centre distance reduces, and at this moment discharge capacity increases, dotted line position 10 is the limit position that stator and driven gear are shifted to driving gear among Fig. 2, and discharge capacity reaches maximum value; Stator is during in the opposite direction near housing, and discharge capacity is minimum.The 28 high pressure runners for the logical front side plate back side communicate with high-pressure mouth 32; Dotted line 29 communicates in low pressure port 33 for the low pressure runner at the logical back side panel back side; The passage flow duct of the high pressure flow groove on 30 and 31 side plates of using for logical gear face is symmetrical in the line of centers position low pressure flow passage road is arranged with 30 and 31 on the back side panel.
The gear of gear pump with variable capacity (motor) is the long tooth of multiple tooth number, increases tooth depth and solves transmission with double modulus and interfere, and maximum overlap coefficient is more than 2, and when driven gear moved radially maximum distance between centers, overlap coefficient was 1, at this moment the discharge capacity minimum; Otherwise, discharge capacity maximum when overlap coefficient reaches maximum value; Gear engagement is at overlap coefficient 1 with greater than 2 o'clock, the discharge capacity scope delivery 20%～100% between stepless variable; And the optimization variables scope of the variable displacement pump of other patterns (motor) is 60%～80% of a delivery, the range of variables overwhelming majority also is in optimum range in the actual conditions, and the low gear pump with variable capacity of this performance parameter high cost simple in structure is the most competitive a kind of novel product.
Except that above-mentioned manual controlled variable, the same with other variable displacement pumps (motor), move radially gear pump with variable capacity (motor) and also can also dispose other various control modes.
Claims (2)
1, a kind of gear pump with variable capacity (motor) that moves radially, include the pump housing 21, transmission shaft 1, the driving gear 2 that is positioned on the transmission shaft 1 and rotates together thereupon, with the intermeshing driven gear 3 of driving gear, be positioned at the master, the active side plate 4 of driven gear bi-side, 5 and driven side plate 6,7, described two gears are involute gear, the invention is characterized in, the centre distance of described two intermeshed gear can change, a stator 10 is housed between the described driven gear and the described pump housing, also is provided with stroking mechanism on the pump housing 21, this stroking mechanism can move radially described stator 10, when Moderator Variable mechanism, described stator 10 drives described driven gear 3 and moves radially together, and two intermeshed gear centre distances are changed, and the gear pump delivery changes thereupon.
2, the gear pump with variable capacity (motor) that moves radially according to claim 1 is characterized in that described spindle 10 is semicircular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85109203 CN1007646B (en) | 1985-05-16 | 1985-05-16 | Radial-movable variable-dispacement gear pump (motor) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85109203 CN1007646B (en) | 1985-05-16 | 1985-05-16 | Radial-movable variable-dispacement gear pump (motor) |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85103605 Division | 1985-05-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85109203A CN85109203A (en) | 1987-06-03 |
| CN1007646B true CN1007646B (en) | 1990-04-18 |
Family
ID=4796269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85109203 Expired CN1007646B (en) | 1985-05-16 | 1985-05-16 | Radial-movable variable-dispacement gear pump (motor) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1007646B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061261A (en) * | 2017-04-30 | 2017-08-18 | 刘泽奎 | A kind of gear pump with variable capacity |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007054808A1 (en) * | 2007-11-16 | 2009-05-20 | Robert Bosch Gmbh | Pump assembly for synchronous pressurization of two fluid circuits |
| JP2012202254A (en) * | 2011-03-24 | 2012-10-22 | Hitachi Automotive Systems Ltd | Pump device |
| WO2015131057A2 (en) * | 2014-02-28 | 2015-09-03 | Purdue Research Foundation | Variable delivery external gear machine |
| CN105041639A (en) * | 2015-08-27 | 2015-11-11 | 刘凡 | External gearing variable gear pump |
| CN110480880B (en) * | 2019-09-23 | 2024-03-05 | 合诚技术股份有限公司 | Waste film processing equipment and processing method |
-
1985
- 1985-05-16 CN CN 85109203 patent/CN1007646B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061261A (en) * | 2017-04-30 | 2017-08-18 | 刘泽奎 | A kind of gear pump with variable capacity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85109203A (en) | 1987-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |