CN110219771A - Nested type blade oscillating hydraulic motor - Google Patents
Nested type blade oscillating hydraulic motor Download PDFInfo
- Publication number
- CN110219771A CN110219771A CN201910369933.0A CN201910369933A CN110219771A CN 110219771 A CN110219771 A CN 110219771A CN 201910369933 A CN201910369933 A CN 201910369933A CN 110219771 A CN110219771 A CN 110219771A
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- China
- Prior art keywords
- end cap
- transmission shaft
- bearing
- left end
- fixed
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- 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
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Classifications
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- 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
- F03C4/00—Oscillating-piston engines
Abstract
The invention discloses a kind of nested type blade oscillating hydraulic motors, belong to Hydraulic servo drive field, including transmission shaft, left end cap, cylinder body, right end cap, rotor, the second angular contact bearing, two outer fixed blades, two interior fixed blades, two bearing (ball) covers and two the first angular contact bearings.Left end cap and right end cap are fixed on cylinder body both ends, transmission shaft is arranged along the central axis of cylinder body, first angular contact bearing is equipped at the shaft shoulder of first transmission shaft and second driving shaft, first angular contact bearing is equipped at the shaft shoulder of second driving shaft and third transmission shaft, rotor is arranged in cylinder body, in the cavity formed between left end cap and right end cap, and it is fixed on second driving shaft, the lateral wall of rotor right side is equipped with the second angular contact bearing, right end cap resists the second angular contact bearing, the left side of rotor is contacted with left end cap, two outer fixed blades are adjacently positioned, symmetrically it is fixed on inboard wall of cylinder block, two interior fixed blades are adjacently positioned and are fixed on rotor.
Description
Technical field
The invention belongs to Hydraulic servo drive field, especially a kind of nested type blade oscillating hydraulic motor.
Background technique
Hydraulic drive has the advantages that small in size, light-weight, rigidity is big, power density is big, power output (torque) is big, hydraulic
SERVO CONTROL has the performance of fast frequency response, speed-regulating range width and low steady rate, this makes hydraulic drive and its servo
Control is widely used in the fields such as weapon industry, aerospace, shipping industry, equipment manufacture, engineering machinery.Hydraulic gyration is held
Most important units are exactly hydraulic motor, can realize continuous rotary for piston motor, gear motor, and revolving speed is higher, and one
As need to configure retarder, simultaneously because the disadvantages of there are revolving speed and torque fluctuations, can reduce servo control performance.And it is loading
Simulator, artificial rotary table, steering engine and joint of robot etc. do not need in the rotary motion of the Hydraulic servo drive of continuous rotary
Generally use rotary actuator.But due to the limitation of its structure, the rotation angle of rotary actuator is less than 360 ° at present, such as
Fruit amplifies corner by transmission mechanism can reduce servo control performance again.
Chinese patent 201010152299.4 proposes a kind of " axial series ultra whole-revolution swing hydraulic motors ", by primary
Stator, primary stator blade, primary movable vane piece, secondary stator, secondary stator blade, secondary movable vane piece, shaft and cover board secondary stator,
Secondary stator blade, secondary movable vane piece, shaft and cover board constitute secondary rotary actuator, primary stator, primary stator blade, primary movable vane
Piece and secondary rotary actuator constitute primary rotary actuator.Wherein two-stage rotary actuator is axially arranged, reduction rotary inertia, hydraulic time
Road series connection, realizes the superposition of shaft rotary corner, the limitation that traditional wobble hydraulic motor corner is less than degree is solved, suitable for requiring corner
More than one week and less than tow weeks directly drives hydraulic servo engine, but due to the limitation of its structure, the rotation of rotary actuator
Gyration is less than 360 °, if servo control performance can be reduced by amplifying corner by transmission mechanism again.
Summary of the invention
The purpose of the present invention is to provide a kind of nested type blade oscillating hydraulic motor, simple and compact for structure, reduction rotation
Inertia can directly drive the axial series ultra whole-revolution swing hydraulic motors of load, realization shaft rotary corner one week or more liquid
Servo-drive is pressed, solves the problems, such as that the angle range of rotary actuator is small.
The technical solution for realizing the aim of the invention is as follows: a kind of nested type blade oscillating hydraulic motor, including transmission shaft,
Left end cap, cylinder body, right end cap, rotor, the second angular contact bearing, outer fixed blade, interior fixed blade, two bearing (ball) covers and two
One angular contact bearing.
Transmission shaft includes the first transmission shaft, second driving shaft, third transmission shaft and interior movable vane piece, the first transmission shaft, second
Transmission shaft and third transmission shaft are sequentially connected, and interior movable vane piece is fixed on second driving shaft excircle, and wherein second driving shaft is horizontal
Sectional area is maximum, and the first transmission shaft is located on the left of second driving shaft, and left end cap and right end cap are fixed on cylinder body both ends, transmission shaft edge
The central axis of cylinder body is arranged, and left end cap and right end cap are stretched out in both ends respectively, at the shaft shoulder of the first transmission shaft and second driving shaft
Equipped with first angular contact bearing, first angular contact bearing is equipped at the shaft shoulder of second driving shaft and third transmission shaft,
Two bearing (ball) covers are separately fixed on left end cap and right end cap, and are each passed through left end cap and right end cap blocks the first angular contact
Bearing realizes that transmission shaft and left end cap and transmission shaft and right end cap seal and to transmission shaft limit by two bearing (ball) covers
Position, so that transmission shaft can only rotate；Rotor is arranged in the cavity formed between cylinder body, left end cap and right end cap, and solid
It is scheduled on second driving shaft, the lateral wall of rotor right side is equipped with the second angular contact bearing, and right end cap resists the second angular contact axis
It holds, the left side of rotor is contacted with left end cap, outer fixed blade is adjacently positioned, and is symmetrically fixed on inboard wall of cylinder block, interior fixed blade phase
Neighbour's arrangement is fixed on rotor.
Compared with prior art, the present invention its remarkable advantage is:
(1) rotary actuator is radially arranged using nested type inside and outside, compact-sized, reduces axial distance, saves installation space,
Not only amplify rotation angle but also do not reduce servo control performance.
(2) oil circuit parallel connection is, it can be achieved that inside and outside motor individually controls inside and outside.
Detailed description of the invention
Fig. 1 is the main sectional view of nested type blade oscillating hydraulic motor of the invention.
Fig. 2 is the sectional view of nested type blade oscillating hydraulic motor of the invention.
Fig. 3 is the stress diagram of nested type blade oscillating hydraulic motor of the invention.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawing.
In conjunction with Fig. 1, nested type blade oscillating hydraulic motor of the present invention, including transmission shaft 1, left end cap 7, cylinder body
11, right end cap 12, rotor 18, the second angular contact bearing 19, outer fixed blade 15,17, two bearing (ball) covers 3 of interior fixed blade and two
First angular contact bearing 6.
Transmission shaft 1 includes the first transmission shaft, second driving shaft, third transmission shaft and interior movable vane piece 16, the first transmission shaft, the
Two transmission shafts and third transmission shaft are sequentially connected, and interior movable vane piece 16 is fixed on second driving shaft excircle, wherein the second transmission
Shaft cross section product is maximum, and the first transmission shaft is located on the left of second driving shaft, and left end cap 7 and right end cap 12 are solid by head bolts 8
11 both ends of cylinder body are scheduled on, transmission shaft 1 is arranged along the central axis of cylinder body 11, and left end cap 7 and right end cap 12 are stretched out in both ends respectively, the
First angular contact bearing 6 is equipped at the shaft shoulder of one transmission shaft and second driving shaft, second driving shaft and third transmission shaft
First angular contact bearing 6 is equipped at the shaft shoulder, two bearing (ball) covers 3 are fixed on left end cap 7 and the right side by bearing (ball) cover screw 5
It on end cap 12, and is each passed through left end cap 7 and right end cap 12 blocks the first angular contact bearing 6, passes through two bearing (ball) covers 3 and realize
Transmission shaft 1 and left end cap 7 and transmission shaft 1 and right end cap 12 are sealed and are limited to transmission shaft 1, so that transmission shaft 1 can only be sent out
Raw rotation.Rotor 18 is arranged in the cavity formed between cylinder body 11, left end cap 7 and right end cap 12, and is fixed on the second transmission
On axis, the lateral wall of 18 right side of rotor is equipped with the second angular contact bearing 19, and right end cap 12 resists the second angular contact bearing 19, will
The left side of rotor 18 is contacted with left end cap 7.
The disengaging of the first L shape is provided with towards second driving shaft outer circle circumferential direction from third transmission shaft right end on the transmission shaft 1
Hydraulic fluid port A and the 2nd L shape oil inlet and outlet B, the first L shape oil inlet and outlet A and the 2nd L shape oil inlet and outlet B are located at interior 16 two sides of movable vane piece.
The rotor 18 includes outer movable vane piece 14, cylinder and annulus, and cylinder is fixed on the left side of annulus, and internal radius is small
In the internal diameter of cylinder, the outer diameter of cylinder is less than the outer diameter of annulus, and outer movable vane piece 14 is fixed on the lateral wall of cylinder, cylinder, biography
The cavity that moving axis 1, annulus and left end cap 7 surround is the first cavity 20, the cavity that cylinder body 11, cylinder, annulus and left end cap 7 surround
For the second cavity 21.Interior fixed blade 17 is adjacently positioned, and is symmetrically fixed on cylinder inner wall by positioning pin 13, and be located at the first cavity
In 20, interior fixed blade 17 limits the rotational angle of interior movable vane piece 16.
Outer fixed blade 15 is symmetrically fixed on 11 inner wall of cylinder body by positioning pin 13, and is located in the second cavity 21, cylinder body 11
On be provided with the first oil inlet and outlet C and the second oil inlet and outlet D, the first oil inlet and outlet C and the second oil inlet and outlet D is located at outer fixed blade 15
Two sides, the rotation of outer movable vane piece 14 limited by outer fixed blade 15.
Nested type blade oscillating hydraulic motor of the present invention further includes three adjustment gaskets 4, and an adjustment gasket 4 is set
It sets between left end cap 7 and bearing (ball) cover 3, second adjustment gasket 4 is arranged between right end cap 12 and bearing (ball) cover 3, third
A adjustment gasket 4 is arranged between right end cap 12 and cylinder body 11.
Nested type blade oscillating hydraulic motor of the present invention further includes O-ring seal 9, and O-ring seal 9 is arranged on a left side
Between end cap 7 and cylinder body 11.
Nested type blade oscillating hydraulic motor of the present invention further includes two bearing (ball) cover sealing rings 2, bearing (ball) cover 3
It is equipped with bearing (ball) cover sealing ring 2 between the first transmission shaft, bearing (ball) cover is equipped between bearing (ball) cover 3 and third transmission shaft and is sealed
Circle 2.
Nested type blade oscillating hydraulic motor of the present invention further includes 4 groups of combination sealings 10, and combination sealing 10 uses C
Shape combination sealing, one group of setting is between cylinder and left end cap 7, and second group between left end cap 7 and second driving shaft, third group is set
It sets between annulus and cylinder body 11, the 4th group of setting is between annulus and second driving shaft.
Transmission shaft 1 and interior movable vane piece 16 are designed as monoblock type, and rotor 18 and outer movable vane piece 14 are designed as monoblock type.Default leaf
Piece 17 and rotor 18 be it is split type, cylinder body 11 and outer fixed blade 15 be it is split type, be fixedly connected by positioning pin 13 between them,
Second angular contact bearing 19 turns round rotor 18, and rotor 18 bears axial force and radial force simultaneously.Equipped with adjustment at right end cap 12
Gasket 4, so as to adjust 19 gap of the second angular contact bearing, makes rotor 18 for adjusting distance between right end cap 12 and cylinder body 11
It is steady when operating.Sealing is fixed by bearing (ball) cover 3 on the outside of first angular contact ball bearing 6,1 both ends of transmission shaft
The felt-ring seal that contact is used between bearing (ball) cover 3 and transmission shaft 1, prevents water, acid gas, dust and other sundries from entering first
Angular contact ball bearing 6, while preventing the loss of lubricating oil.It is equipped with adjustment gasket 4 at bearing (ball) cover 3, prevents letting out for hydraulic motor
Leakage, it is opposing stationary between bearing (ball) cover 3 and cylinder body 11, it is sealed using O-ring seal 9, while the first transmission of transmission shaft 1
Keyway is provided on axis to connect with external loading.
In conjunction with Fig. 2, cylinder body 11, the first oil inlet and outlet C, the second oil inlet and outlet D, outer movable vane piece 14 and outer fixed blade 15 are formed
Outer rotary actuator.First L shape oil inlet and outlet A, the 2nd L shape oil inlet and outlet B, interior movable vane piece 16, interior fixed blade 17 and
Rotor constitutes interior rotary actuator.With since transmission shaft 1 is rotation, the first L shape on transmission shaft 1 passes in and out oil
It needs to be attached by rotary joint between mouth A, the 2nd L shape oil inlet and outlet B and oil pipe, this ensure that transmission shaft 1 is revolving
Disengaging oil pipe is able to maintain motionless when turning.
When needing to swing one week, double acting is unable to satisfy, and needs to be designed as single-acting formula.The present invention is with single-acting formula
Example, at this time since transmission shaft 1 and rotor 18 are all simultaneously by axial force and radial force, the both ends of transmission shaft 1 and rotor 18
Right end is fitted with angular contact bearing, and angular contact bearing is fixed on the positioning and is sealed by bearing (ball) cover 3.
In conjunction with Fig. 3, the discharge capacity and torque calculation of nested type blade oscillating hydraulic motor of the present invention:
Definition according to the geometry discharge capacity of nested type blade oscillating hydraulic motor is available, the discharge capacity D of interior rotary actuatorm1
For
In formula: W is the width of interior movable vane piece；R1For the cylinder inside radius of rotor 18；R2For the radius of second driving shaft.
The similarly discharge capacity D of outer rotary actuatorm2For
In formula: R3For the outer radius of annulus；R4For the outer radius of drum.
Also due to the structural parameters of inside and outside motor are different, the torque of their output is also different.Below internally
Output torque when outer rotary actuator works independently is calculated.
As shown in figure 3, acting on the power F of interior rotary actuator1For
F1=(P1-P2)(R1-R2)W (1.3)
The operating radius of power is (R1+R2)/2, then in rotary actuator output torque T1For
In formula: Δ P1For the pressure difference of interior rotary actuator oil inlet and outlet；
P1For inner motor oil inlet cavity pressure, P2For the fuel-displaced cavity pressure of inner motor.
It can must similarly act on the power F of outer rotary actuator2For
F2=(P3-P4)(R3-R4)W (1.5)
The operating radius of power is (R3+R4)/2, then in rotary actuator output torque T2For
In formula: Δ P2For the pressure difference of outer rotary actuator oil inlet and outlet；
P3For outer motor oil inlet cavity pressure, P4For the fuel-displaced cavity pressure of outer motor.
When inside and outside two motors cooperate, discharge capacity Dm=Dm1+Dm2, output torque T=T2-T1。
Claims (7)
1. a kind of nested type blade oscillating hydraulic motor, it is characterised in that: including transmission shaft (1), left end cap (7), cylinder body (11),
Right end cap (12), rotor (18), the second angular contact bearing (19), outer fixed blade (15), interior fixed blade (17), two bearing (ball) covers
(3) and two the first angular contact bearings (6)；
Transmission shaft (1) includes the first transmission shaft, second driving shaft, third transmission shaft and interior movable vane piece (16), the first transmission shaft, the
Two transmission shafts and third transmission shaft are sequentially connected, and interior movable vane piece (16) is fixed on second driving shaft excircle, wherein second passes
Moving axis cross-sectional area is maximum, and the first transmission shaft is located on the left of second driving shaft, and left end cap (7) and right end cap (12) are fixed on cylinder body
(11) both ends, transmission shaft (1) are arranged along the central axis of cylinder body (11), and left end cap (7) and right end cap (12) are stretched out in both ends respectively,
First angular contact bearing (6), second driving shaft and third transmission are equipped at the shaft shoulder of first transmission shaft and second driving shaft
First angular contact bearing (6) is equipped at the shaft shoulder of axis, two bearing (ball) covers (3) are separately fixed at left end cap (7) and right end
It covers on (12), and is each passed through left end cap (7) and right end cap (12) blocks the first angular contact bearing (6), pass through two bearing ends
It covers (3) and realizes that transmission shaft (1) and left end cap (7) and transmission shaft (1) and right end cap (12) are sealed and limited transmission shaft (1)
Position, so that transmission shaft (1) can only rotate；Rotor (18) is arranged between cylinder body (11), left end cap (7) and right end cap (12)
It in the cavity of formation, and is fixed on second driving shaft, the lateral wall of rotor (18) right side is equipped with the second angular contact bearing
(19), right end cap (12) resists the second angular contact bearing (19), and the left side of rotor (18) is contacted with left end cap (7), outer fixed
Blade (15) is fixed on cylinder body (11) inner wall, and interior fixed blade (17) is fixed on rotor (18).
2. nested type blade oscillating hydraulic motor according to claim 1, it is characterised in that: on the transmission shaft (1) certainly
Third transmission shaft right end is provided with the first L shape oil inlet and outlet A and the 2nd L shape oil inlet and outlet B towards second driving shaft outer circle circumferential direction,
First L shape oil inlet and outlet A and the 2nd L shape oil inlet and outlet B are located at interior movable vane piece (16) two sides.
3. nested type blade oscillating hydraulic motor according to claim 1, it is characterised in that: the rotor (18) includes outer
Movable vane piece (14), cylinder and annulus, cylinder are fixed on the left side of annulus, and internal radius is less than the internal diameter of cylinder, cylinder it is outer
Diameter is less than the outer diameter of annulus, and outer movable vane piece (14) is fixed on the lateral wall of cylinder, cylinder, transmission shaft (1), annulus and left end cap
(7) cavity surrounded is the first cavity (20), and the cavity that cylinder body (11), cylinder, annulus and left end cap (7) surround is the second cavity
(21)；Interior fixed blade (17) is symmetrically fixed on cylinder inner wall by positioning pin (13), and is located in the first cavity (20), default leaf
Piece (17) limits the rotational angle of interior movable vane piece (16)；Outer fixed blade (15) is located in the second cavity (21), on cylinder body (11)
It is provided with the first oil inlet and outlet C and the second oil inlet and outlet D, the first oil inlet and outlet C and the second oil inlet and outlet D is located at outer fixed blade (15)
Two sides, the rotation of outer movable vane piece (14) limited by outer fixed blade (15).
4. nested type blade oscillating hydraulic motor according to claim 1, it is characterised in that: further include three adjustment gaskets
(4), an adjustment gasket (4) is arranged between left end cap (7) and bearing (ball) cover (3), and second adjustment gasket (4) is arranged on the right side
Between end cap (12) and bearing (ball) cover (3), third adjusts gasket (4) and is arranged between right end cap (12) and cylinder body (11).
5. nested type blade oscillating hydraulic motor according to claim 1, it is characterised in that: further include O-ring seal
(9), O-ring seal (9) is arranged between left end cap (7) and cylinder body (11).
6. nested type blade oscillating hydraulic motor according to claim 1, it is characterised in that: further include two bearing (ball) covers
Sealing ring (2) is equipped with bearing (ball) cover sealing ring (2), bearing (ball) cover (3) and third between bearing (ball) cover (3) and the first transmission shaft
Bearing (ball) cover sealing ring (2) are equipped between transmission shaft.
7. nested type blade oscillating hydraulic motor according to claim 1, it is characterised in that: further include 4 groups of combination sealings
(10), combination sealing (10) uses C-shaped combination sealing, and one group of setting is between cylinder and left end cap (7), second group of left end cap
(7) between second driving shaft, third group is arranged between annulus and cylinder body (11), and the 4th group of setting is driven in annulus and second
Between axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369933.0A CN110219771A (en) | 2019-05-06 | 2019-05-06 | Nested type blade oscillating hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910369933.0A CN110219771A (en) | 2019-05-06 | 2019-05-06 | Nested type blade oscillating hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110219771A true CN110219771A (en) | 2019-09-10 |
Family
ID=67820347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910369933.0A Pending CN110219771A (en) | 2019-05-06 | 2019-05-06 | Nested type blade oscillating hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110219771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023284928A1 (en) * | 2021-07-16 | 2023-01-19 | Shark Containers A/S | A hydraulic arrangement and a compactor with a hydraulic arrangement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11193772A (en) * | 1997-12-26 | 1999-07-21 | Yasunaga Corp | Hydraulic swing motor |
| CN101031727A (en) * | 2004-04-22 | 2007-09-05 | Zf腓特烈港股份公司 | Radial oscillating motor, and method for the production thereof |
| CN102691614A (en) * | 2012-06-08 | 2012-09-26 | 燕山大学 | Double-stator swing hydraulic multi-speed motor |
| CN203608050U (en) * | 2013-12-13 | 2014-05-21 | 济宁科尔森液压有限公司 | Hydraulic-motor static rotor |
| CN203670341U (en) * | 2014-01-02 | 2014-06-25 | 上海美西为机电设备有限公司 | Double-vane servo oscillation hydraulic cylinder |
| CN104747365A (en) * | 2015-04-03 | 2015-07-01 | 合肥工业大学 | Hydraulic swing motor |
-
2019
- 2019-05-06 CN CN201910369933.0A patent/CN110219771A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11193772A (en) * | 1997-12-26 | 1999-07-21 | Yasunaga Corp | Hydraulic swing motor |
| CN101031727A (en) * | 2004-04-22 | 2007-09-05 | Zf腓特烈港股份公司 | Radial oscillating motor, and method for the production thereof |
| CN102691614A (en) * | 2012-06-08 | 2012-09-26 | 燕山大学 | Double-stator swing hydraulic multi-speed motor |
| CN203608050U (en) * | 2013-12-13 | 2014-05-21 | 济宁科尔森液压有限公司 | Hydraulic-motor static rotor |
| CN203670341U (en) * | 2014-01-02 | 2014-06-25 | 上海美西为机电设备有限公司 | Double-vane servo oscillation hydraulic cylinder |
| CN104747365A (en) * | 2015-04-03 | 2015-07-01 | 合肥工业大学 | Hydraulic swing motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023284928A1 (en) * | 2021-07-16 | 2023-01-19 | Shark Containers A/S | A hydraulic arrangement and a compactor with a hydraulic arrangement |
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Application publication date: 20190910 |