CN106286181B - A kind of hydraulic variable flow mechanism - Google Patents
A kind of hydraulic variable flow mechanism Download PDFInfo
- Publication number
- CN106286181B CN106286181B CN201610883371.8A CN201610883371A CN106286181B CN 106286181 B CN106286181 B CN 106286181B CN 201610883371 A CN201610883371 A CN 201610883371A CN 106286181 B CN106286181 B CN 106286181B
- Authority
- CN
- China
- Prior art keywords
- variable
- cam ring
- hydraulic
- section cam
- shell
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/06—Control
- F04B1/07—Control by varying the relative eccentricity between two members, e.g. a cam and a drive shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
- F03C1/0447—Controlling
- F03C1/0463—Controlling by changing the phase relationship between two actuated cams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention provides a kind of hydraulic variable flow mechanism, belongs to technical field of hydraulic pressure；It solves the problems, such as the change discharge capacity of existing hydraulic pump or hydraulic motor, the especially change discharge capacity problem of multiaction hydraulic radial pump or multiaction radial motor, the variable displacement mechanism of this hydraulic pump or hydraulic motor includes: variable cross-section cam ring and variable manipulation mechanism, under the action of variable manipulation mechanism, variable cross-section cam ring and rotor can be moved along rotary shaft is axially opposing, since the ram travel difference in different location upper rotor part is so discharge capacity is different, to realize the change displacement function of hydraulic pump or hydraulic motor, versatility of the present invention is high, practical value with higher.
Description
Technical field
The invention belongs to technical field of hydraulic pressure, it is related to the stroking mechanism more particularly to one of a kind of hydraulic pump or hydraulic motor
The stroking mechanism of kind multiaction hydraulic radial pump or hydraulic motor.
Background technique
Hydraulic pump and hydraulic motor are that most important dynamical element and executive component, volume adjustable hydraulic pump are extensive in Hydraulic Field
Using with extrusion forging, mechanically, variable hydraulic motor is the important component of walking type construction machinery for steel rolling and injection molding etc..
General multiaction hydraulic pump or hydraulic motor have lot of advantages, but to change that its discharge capacity is relatively difficult, and one kind is done
Method is that two cam semi-rings are moved radially relative to rotor center to change the stroke of plunger；Such as: application No. is 85109105
The Chinese invention " variable delivery hydraulic machinery and electrodeless variable-speed hydraulic transmission " of (publication number CN85109105A), this structure
The disadvantage is that mechanism is complicated, as the increase cam semi-ring of effect number and the quantity of stroking mechanism increase therewith, structure becomes more multiple
It is miscellaneous.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of simple hydraulic variable flow mechanism of structure.
The technical scheme of the invention to solve the technical problem is:
A kind of hydraulic variable flow mechanism, including cam ring and variable manipulation mechanism, the cam ring are variable cross-section cam ring, In
It can be moved along rotary shaft is axially opposing between variable cross-section cam ring and rotor under the action of variable manipulation mechanism.
Preferably, all there is at least one section position in the effect curves on the variable cross-section cam ring on any sectional position
The effect curves set are different, the two different effect curves, the point on same curves to rotary shaft maximum distance and
The difference of minimum distance is different.
Preferably, variable cross-section cam ring top-surface camber effect number is natural number.
Preferably, it cannot be moved axially between rotor and shell, variable cross-section cam ring can be along rotary shaft axially with respect to rotor
Translation.
Preferably, variable manipulation mechanism is variable piston, and the variable piston and shell form oil closed cavity, oil closed cavity
It is communicated with the control port on shell.
Preferably, the variable cross-section cam ring effect curved surface includes small displacement curved surface, fillet surface and huge discharge curved surface.
Preferably, variable cross-section cam ring and shell are linked together no relative motion, and rotor can be along the axially opposing change of rotary shaft
The translation of section cam ring.
Preferably, variable manipulation mechanism is variable piston, there is plunger hole on shell, and plunger hole and variable piston, which are formed, to be closed
Oil pocket, oil closed cavity are communicated with the control port on shell.
Preferably, variable manipulation mechanism is to adjust screw.
Compared with prior art, the present invention the configuration of the present invention is simple is had the following beneficial effects:, to radial hydraulic pump or liquid
Pressure motor, whether single-acting, double acting or multiaction, can be transferred through the change that the present invention realizes discharge capacity.
Detailed description of the invention
Fig. 1 is a kind of hydraulic variable flow mechanism structure schematic diagram of the present invention.
A kind of hydraulic variable flow mechanism (rotor movement) structural schematic diagram of Fig. 2 present invention.
Fig. 3 is double acting variable cross-section cam ring schematic diagram (perspective view) of the present invention.
Fig. 4 is single-acting variable cross-section cam ring schematic diagram (perspective view) of the present invention.
Fig. 5 is seven effect variable cross-section cam ring schematic diagram (perspective view) of the present invention.
Fig. 6 is the variable cross-section cam ring schematic diagram (perspective view) of the invention with small displacement and huge discharge curved surface.
It is as shown in the figure: 1, shell, 2, control port, 3, oil closed cavity, 4, variable manipulation mechanism, 5, variable cross-section cam ring,
6, rotor, 7, small displacement curved surface, 8, fillet surface, 9, huge discharge curved surface, 10, rotary shaft, 11 variable pistons, 12, adjusting screw,
13, variable piston.
Specific embodiment
Embodiments of the present invention and embodiment are described further with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, the present invention is a kind of hydraulic variable flow mechanism, including cam ring and variable manipulation mechanism 4, cam
Ring is variable cross-section cam ring 5, can be along 10 axis of rotary shaft between variable cross-section cam ring 5 and rotor 6 under the action of variable manipulation mechanism 4
To relative movement；Variable cross-section cam ring 5 and rotor 6 are a pair of of cylindrical pairs, and the two can relatively rotate and can be opposite along axis
To translation；Variable manipulation mechanism 4 is variable cross-section cam ring 5 and the axially translated power of rotor 6；Pass through axial translation, rotor 1
Corresponding different effect curves, and different effect curves points is different with the difference of minimum distance to 10 maximum distance of rotary shaft,
That is the stroke of plunger is different, and different strokes corresponds to the variation of hydraulic pump or hydraulic motor displacement.
Preferably, all there is at least one sectional position in the effect curves on variable cross-section cam ring 5 on any sectional position
On effect curves it is different, the two different effect curves, point on same curves is to rotary shaft maximum distance and most
The difference of short distance is different, i.e., the stroke of plunger is different, and different strokes corresponds to the variation of hydraulic pump or hydraulic motor displacement, institute
To move to axial the discharge capacity that can change hydraulic pump or hydraulic motor by variable cross-section cam ring 5 and rotor 6.
Preferably, 5 top-surface camber of variable cross-section cam ring effect number is natural number, and it is natural that curved surface effect number can be 1,2,3 etc.
Number, as the increases rotor 6 of effect number rotates a circle the flexible number increase of plunger, in the case where not changing ram travel,
Discharge capacity increases；If Fig. 3 is double acting cam ring, Fig. 4 is single-acting cam ring, and Fig. 5 is seven operating cam rings.
Preferably, as shown in Figure 1, cannot move axially between rotor 6 and shell 1, rotor 6 and shell 1 are a pair of of revolute pairs；
Variable cross-section cam ring 5 can be translated along rotary shaft 10 axially with respect to shell 1, there is keyway on shell 1, on variable cross-section cam ring 5
There is keyway, two keyways rotate variable cross-section cam ring 5 can only axially with respect to the translation of shell 1 cannot along rotary shaft 10；Variable cross-section
Cam ring 5 and shell 1 are a pair of of prismatic pairs, and the two realizes rotor 6 and variable cross-section cam ring 5 along the axial shifting of rotary shaft 10 jointly
It is dynamic, and variable cross-section cam ring 5 can be translated along the axially opposing rotor 6 of rotary shaft 10.
Preferably, variable manipulation mechanism 4 is variable piston 11, and variable piston 11 and shell 1 form oil closed cavity 3, closing
Oil pocket 3 is communicated with the control port 2 on shell 1；When controlling oil pressure raising, oil liquid enters oil closed cavity 3 by control port 2
It pushes and is moved outside variable piston 11, otherwise variable piston 11 is withdrawn, while variable cross-section cam ring 5 or rotor 6 being pushed to translate.
Preferably, such as Fig. 6, it includes that small displacement curved surface 7, fillet surface 8 and huge discharge are bent that variable cross-section cam ring 5, which acts on curved surface,
Face 9；Effect curves point is small to rotary shaft maximum distance and minimum distance difference on small displacement curved surface 7, keeps plunger long stroke small,
Discharge capacity is also small, and effect curves point is big to rotary shaft maximum distance and minimum distance difference on huge discharge curved surface 9, makes plunger effect row
Cheng great, discharge capacity is also big, and fillet surface 8 is general only as the changeover portion for becoming discharge capacity, is not involved in long term time work.
Preferably, as shown in Fig. 2, variable cross-section cam ring 5 and shell 1 are linked together no relative motion, rotor 6 can be along rotation
The translation of the axially opposing variable cross-section cam ring 5 of axis 10；Rotor 6 and variable cross-section cam ring 5 are a pair of of cylindrical pairs.
Preferably, as shown in Fig. 2, variable manipulation mechanism 4 is variable piston 13, there are plunger hole, plunger hole and change on shell
It measures plunger 13 and forms oil closed cavity 3, oil closed cavity 3 is communicated with the control port 2 on shell 1；When controlling oil pressure raising, oil liquid
Enter oil closed cavity 3 by control port 2 and push shifting outside plunger 13, otherwise plunger 13 is withdrawn, while pushing variable cross-section cam ring 5
Or rotor 6 translates.
Preferably, as shown in Fig. 2, variable manipulation mechanism 4 is to adjust screw 12, there are screw thread, turning adjusting screw on shell 1
12 can change the relative position of rotor 6 and variable cross-section cam ring 5.
A kind of embodiment one: stroking mechanism of multiaction radial plunger pump (translation of variable cross-section cam ring 5).
As shown in Figure 1, a kind of stroking mechanism of multiaction hydraulic radial plunger pump, including variable cross-section cam ring 5 and variable
Operating mechanism 4；It cannot be moved axially between rotor 6 and shell 1, rotor 6 and shell 1 are a pair of of revolute pairs；Variable cross-section cam ring 5 can
It is translated along rotary shaft 10 axially with respect to shell 1, has keyway on shell 1, also have keyway on variable cross-section cam ring 5, two keyways make
Variable cross-section cam ring 5 can only be translated and cannot be rotated axially with respect to shell 1 along rotary shaft 10；Variable cross-section cam ring 5 and shell 1
It is a pair of of prismatic pair, the two realizes rotor 6 and variable cross-section cam ring 5 along 10 axial translation of rotary shaft jointly, and variable cross-section is convex
Torus 5 can be translated along the axially opposing rotor 6 of rotary shaft 10；Variable manipulation mechanism 4 is variable cross-section cam ring 5 and rotor 6 along axis
To the power of translation；By axial translation, the corresponding different effect curves of rotor 1, and different effect curves points is to rotary shaft
Maximum distance is different with the difference of minimum distance, i.e. the stroke of plunger is different, and different strokes corresponds to hydraulic pump or hydraulic motor
The variation of discharge capacity.
A kind of embodiment two: stroking mechanism of multiaction radial plunger pump (translation of rotor 6).
As shown in Fig. 2, a kind of stroking mechanism of multiaction hydraulic radial plunger pump, including variable cross-section cam ring 5 and variable
Operating mechanism 4；Variable cross-section cam ring 5 and shell 1 are linked together no relative motion, and rotor 6 can be along the axially opposing change of rotary shaft 10
5 axial translation of section cam ring；Rotor 6 and variable cross-section cam ring 5 are a pair of of cylindrical pairs, in variable piston 13 or adjust screw
Under the action of 12, rotor 6 can be along 10 axial translation of rotary shaft, by axial translation, the corresponding different effect curves of rotor 1, and
Different effect curves points is different with the difference of minimum distance to rotary shaft maximum distance, i.e. the stroke of plunger is different, different
Stroke corresponds to the variation of hydraulic pump or hydraulic motor displacement.
The structural principle of both examples above, motor is identical as pump, and only effect is on the contrary, I will not elaborate.
Above content is only illustrations made for the present invention described in this specification.Technology belonging to the present invention
The technical staff in field can make various modifications or additions to the described embodiments or by a similar method
Substitution, content without departing from description of the invention or beyond the scope defined by this claim should belong to this
The protection scope of invention.
Claims (6)
1. a kind of hydraulic variable flow mechanism, including cam ring and variable manipulation mechanism (4), it is characterised in that: the cam ring is to become
Section cam ring (5), can be along rotary shaft between variable cross-section cam ring (5) and rotor (6) under the action of variable manipulation mechanism (4)
(10) all there is at least one in axially opposing movement, the effect curves on the variable cross-section cam ring (5) on any sectional position
Effect curves on sectional position are different, the difference of the point on one of curve to rotary shaft maximum distance and minimum distance
Value is different from the difference of point to rotary shaft maximum distance and minimum distance on another curve, between rotor (6) and shell (1) not
It can move axially, variable cross-section cam ring (5) can be translated along rotary shaft (10) axially with respect to rotor (6), variable manipulation mechanism (4)
It is variable piston (11), the variable piston (11) and shell (1) form oil closed cavity (3), oil closed cavity (3) and shell (1)
On control port (2) communicate.
2. hydraulic variable flow mechanism according to claim 1, it is characterised in that: variable cross-section cam ring (5) top-surface camber acts on number
It is natural number.
3. hydraulic variable flow mechanism according to claim 1, it is characterised in that: the variable cross-section cam ring (5) acts on curved surface
Including small displacement curved surface (7), fillet surface (8) and huge discharge curved surface (9).
4. hydraulic variable flow mechanism according to claim 1, it is characterised in that: variable cross-section cam ring (5) is linked as with shell (1)
For one without relative motion, rotor (6) can be along axially opposing variable cross-section cam ring (5) translation of rotary shaft (10).
5. hydraulic variable flow mechanism according to claim 1, it is characterised in that: variable manipulation mechanism (4) is variable piston
(13), there is plunger hole on shell (1), plunger hole and variable piston (13) form oil closed cavity (3), oil closed cavity (3) and shell
(1) control port (2) on communicates.
6. hydraulic variable flow mechanism according to claim 1, it is characterised in that: variable manipulation mechanism (4) is to adjust screw
(12)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610883371.8A CN106286181B (en) | 2016-10-10 | 2016-10-10 | A kind of hydraulic variable flow mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610883371.8A CN106286181B (en) | 2016-10-10 | 2016-10-10 | A kind of hydraulic variable flow mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106286181A CN106286181A (en) | 2017-01-04 |
| CN106286181B true CN106286181B (en) | 2019-11-05 |
Family
ID=57718000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610883371.8A Active CN106286181B (en) | 2016-10-10 | 2016-10-10 | A kind of hydraulic variable flow mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286181B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327438B (en) * | 2017-08-25 | 2024-05-28 | 宁波恒通诺达液压股份有限公司 | Hydraulic motor with stepless speed change function and engineering transport vehicle |
| CN107575378B (en) * | 2017-08-31 | 2024-02-09 | 常熟市海虞镇志宏五金厂 | Adjustable inner curve hydraulic pump or motor |
| CN109826790B (en) * | 2019-02-27 | 2020-07-07 | 安徽理工大学 | Variable double-acting radial plunger pump |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3743929B2 (en) * | 2000-07-31 | 2006-02-08 | 株式会社ショーワ | Variable displacement pump |
| JP2007255276A (en) * | 2006-03-23 | 2007-10-04 | Hitachi Ltd | Variable displacement vane pump |
| CN101666337B (en) * | 2009-09-15 | 2012-07-18 | 山东交通学院 | Manually controlled single-acting blade-type hydraulic transformer |
| CA2724564A1 (en) * | 2010-11-30 | 2012-05-30 | Mitsubishi Heavy Industries, Ltd. | Wind turbine generator comprising a hydraulic transmission |
| CN103277275B (en) * | 2013-05-29 | 2015-09-02 | 宁波恒力液压股份有限公司 | Electric controlled multi-functional compositely proportional axial variable displacement plunger pump |
-
2016
- 2016-10-10 CN CN201610883371.8A patent/CN106286181B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106286181A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106286181B (en) | A kind of hydraulic variable flow mechanism | |
| US8926298B2 (en) | Hydraulic piston pump with a variable displacement throttle mechanism | |
| US9228571B2 (en) | Variable radial fluid device with differential piston control | |
| CN108799036A (en) | Can balancing moment and alleviate impact asymmetric axial plunger pump | |
| CN103670989A (en) | Opposed piston pump | |
| EP3048301B1 (en) | Hydraulic radial piston device with improved pressure transition mechanism | |
| CN103334926A (en) | Rotating stator type double-acting variable vane pump | |
| US3277834A (en) | Rotary radial piston machine with enlarged piston stroke | |
| CN203685465U (en) | Variable displacement hydraulic motor adopting asymmetric multi-stroke curve | |
| DE102007045014B3 (en) | Hydraulic drive | |
| CN103670900B (en) | A kind of change displacement hydraulic motor using asymmetric inner curve | |
| US1321086A (en) | Variable-stroke pump. | |
| US10408318B2 (en) | Variable displacement linkage mechanism | |
| CN109340080B (en) | Cam mechanism, piston and magnetic refrigerator with same | |
| CN109263111B (en) | Hydraulic crank eccentricity adjusting device of crank press | |
| CN106593801A (en) | Hydraulic pump reciprocating rotary type steel ball transmission mechanism | |
| CN104612926B (en) | A kind of cam-type axial piston pump servo variable mechanism using edge cam transmission | |
| CN201714610U (en) | Variable mechanism of plunger pump | |
| CN201851349U (en) | Novel small control plunger piston of radial plunger pump | |
| CN207470368U (en) | Diacytic type axial plunger pump | |
| US9188111B2 (en) | Displacement assembly for a fluid device | |
| CN217898090U (en) | Hydraulic control pump and excitation system | |
| CN101876303B (en) | Stroking mechanism of plunger pump | |
| DE102022128195A1 (en) | Hydraulic radial piston machine | |
| CN203685505U (en) | Opposed-piston pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191012 Address after: 242000 Xuanzhou Economic Development Zone, Xuancheng, Anhui Province, the intersection of Qilin road and Kirin Avenue Applicant after: Xuancheng Donghai automobile steering parts Co., Ltd. Address before: 273100 Room 502, unit 2, building 23, Youpeng garden, Lucheng street, Qufu City, Jining City, Shandong Province Applicant before: Yang Jian |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |