CN206190451U - Big moment of torsion shell of ultralow speed changes steel ball hydraulic motor - Google Patents
Big moment of torsion shell of ultralow speed changes steel ball hydraulic motor Download PDFInfo
- Publication number
- CN206190451U CN206190451U CN201621175820.5U CN201621175820U CN206190451U CN 206190451 U CN206190451 U CN 206190451U CN 201621175820 U CN201621175820 U CN 201621175820U CN 206190451 U CN206190451 U CN 206190451U
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- oil
- steel ball
- plunger
- valve plate
- distribution shaft
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Abstract
The utility model provides a big moment of torsion shell of ultralow speed changes steel ball hydraulic motor, constitute including stator and rotor, the stator is including leading to oil distribution shaft, double plunger cylinder body, plunger and steel ball, the rotor includes incurvated drum, right side cover, left side cover and valve plate, install in the cavity of double plunger cylinder body lead to oil distribution shaft and valve plate, double plunger cylinder body with lead to and be spline fixed connection between the oil distribution shaft, be bolt fixed connection between valve plate one end and the left side cover, incurvated drum suit is external in double plunger case to with a left side, right side cover fixed connection, be provided with the bearing between a left side, right side cover and the logical oil distribution shaft. This design has improved the compact degree of structure, is favorable to the miniaturization and the lightweight of equipment, so simultaneously effective resources are saved reduces not cost.
Description
Technical field
The utility model is related to hydraulic transmission technology field, and in particular to shell turns steel ball hydraulic motor.
Background technology
Low speed high torque hydraulic motor can be divided into：Radial piston hydraulic motor, crank shaft-connection-lever type hydraulic, tilt cylinder
Formula hydraulic motor and cycloid hydraulic motor etc. are several.
Radial piston hydraulic motor is fixed for housing, the rotation of cylinder body hollow shaft.Cylinder body installs rolling in the housing
Axis of a cylinder is held, and even number plunger is distributed in the radial direction cylinder holes of cylinder body, and valve plate is realized obtaining duty plunger and accurately matches somebody with somebody oil, often
Individual plunger is all acted on cam bawl.When action of hydraulic force is on plunger, cam bawl just transfers force to the oblique of cam ring
On face, and cam ring is fixed together with housing, therefore produces moment of torsion.Reaction force is delivered to cam bawl the post of cylinder body
Beyond the Great Wall, thus produce rotation, while moment of torsion is proportional to system pressure.
If the fuel-displaced direction of entering of hydraulic motor is exchanged, hydraulic motor will be inverted；If drive shaft is fixed, stator, match somebody with somebody
Stream axle and housing will be rotated, and commonly referred to shell is changed a job condition, is changed into wheel motor.
Existing low speed high torque hydraulic motor is capable of achieving the effect of wheel motor in the case where shell changes a job condition, but because original is designed
Limited, it is impossible to meet the use under some particular cases.The defect such as their generally existing overall volumes are big simultaneously.
The content of the invention
In order to solve that existing axial plunger hydraulic pump self-priming characteristic is poor, output flow pulsation and, noise is big, and discharge capacity is small, makes
The problems such as using short life, the utility model provide one kind can self-priming characteristic is good under low-speed running environment, output flow pulsation and
Noise is small, and with transmission resistance and abrasion is small, efficiency high, small volume, discharge capacity are big, the low-speed running of long lifespan plunger hydraulic
Pump.
The technical solution of the utility model is：
A kind of ultra-low speed big torsional moment shell turns steel ball hydraulic motor, including stator and rotor are constituted；Stator include logical oil distribution shaft,
Double plunger cylinder, plunger and steel ball；Rotor includes introversion drum, right cap, left cap and valve plate；Double plunger cylinder
The logical oil distribution shaft and valve plate are installed in cavity, are fixed for spline between double plunger cylinder and the logical oil distribution shaft and connected
Connect, for bolt is fixedly connected between valve plate one end and left cap；It is external that introversion drum is set in double plunger case, and with it is left,
Right cap is fixedly connected, and bearing is provided between left and right side cover and logical oil distribution shaft；Have double 9 on the circumference of double plunger cylinder
The row's radial plunger cylinder holes of individual uniform size identical two, diverges 20 ° of angles between two organ timbering consents；Two is installed in plunger cylinder holes
Plunger with ball-and-socket, constitutes rolling point and contacts between the steel ball and the curved surface of introversion drum on plunger.
Further, the inwall of above-mentioned introversion drum is made up of 3 sections of uniform plus-minus curves that wait, and every section of curve-equipartition is paired
Two sections for claiming, one section is oil-feed section, and another section is oil return section.
Further, above-mentioned logical oil distribution shaft center two ends open up respectively it is left and right enter fuel-displaced axial hole and intermediate row internal drainage
Automatic valve, the axial blind hole bottom hole edge on logical oil distribution shaft has the radial hole for connecting, and radial direction hole surface is provided with ditch
Groove, the passage being made up of axial blind hole, radial hole, groove is oil circuit I, and the passage being made up of axial blind hole, radial hole, groove is
No matter oil circuit II, hydraulic oil accesses from any oil circuit, and automatic valve is automatically switched off oil-feed oil circuit and opens fuel-displaced oil circuit, plays automatic row
Internal drainage is acted on.
Further, the left oil inlet and outlet of above-mentioned valve plate, right oil inlet and outlet respectively with oil circuit I, the oil duct phase of oil circuit II
Adaptation.
The operation principle of the utility model low speed axial plunger hydraulic pump：
Oil circuit I of the pressure oil from logical oil distribution shaft enters into valve plate, enters through valve plate oil inlet and outlet and is in oil-feed area
In the fuel feed hole of the plunger case of section, pressure oil promotes plunger steel ball to the active force of curved surface one of introversion drum, and the active force can divide
It is radial load and tangential force to solve, and the torque produced by tangential force then drives inner curve disc spins；When plunger is through the song of introversion drum
Face oil-feed section is transitioned into the moment of oil return section, and fuel feeding is closed, and drainback passage is opened therewith；Now, the tortuous face of inner curve will
Plunger is pushed back, and plunger case internal volume reduces discharges fluid through valve plate from oil circuit II；When plunger is carried on the back shifts lower dead center onto, post
The outage for filling in bottom is closed by valve plate partition wall, and oil inlet and outlet is opened immediately.Plunger often moves back and forth one by a curved surface
Secondary, oil-feed and oil return are exchanged once.Plunger in plunger cylinder is reciprocating in plunger cylinder holes, so goes round and begins again, no
Disconnected drive rotor is rotated.
The utility model is had the positive effect that using said structure：
1st, the design improves the compactness of structure, is conducive to the miniaturization and lightweight of equipment, so while effectively
Economize on resources, reduces cost；
2nd, using double plunger, efficiency is improved, 9 uniform plungers work in stress point on three sections of curved surfaces and uniformly, reduce
Friction；
3rd, while the steady moments of torsion of 6---9 ultra low speed operation of plunger acted on curved surface are big；
4th, compared with the motor of equal discharge capacity, the motor volume reduces 1/2 moment of torsion and improves 1/3, logical using central shaft
Oily simple structure, and be easily installed.
Brief description of the drawings
Fig. 1 is that the utility model ultra-low speed big torsional moment shell turns steel ball hydraulic motor structural representation；
Fig. 2 is that the utility model ultra-low speed big torsional moment shell turns steel ball hydraulic motor assembling schematic diagram；
Fig. 3 is wildcard oil axle construction schematic diagram of the present utility model；
Fig. 4 is the generalized section of Fig. 3；
Fig. 5 ram cylinder structure schematic diagrames of the present utility model；
Fig. 6 is introversion drum figure of the present utility model；
Fig. 7 is the utility model valve plate schematic diagram；
Fig. 8 is the B-B sectional views of Fig. 7；
Fig. 9 is the top view of Fig. 8
Figure 10 is plunger figure of the present utility model；
Figure 11 is that ultra-low speed big torsional moment shell of the present utility model turns steel ball hydraulic motor oil circuit schematic diagram；
In figure：301st, oil distribution shaft is led to；302nd, oil sealing；303rd, bearing；304th, left cap；305th, introversion drum；306th, left bank
Plunger；307th, steel ball；308th, double plunger cylinder；309th, valve plate；310th, right cap；311st, right organ timbering plug；312nd, steel ball；
3011st, automatic valve；3091st, right oil inlet and outlet；3092nd, left oil inlet and outlet.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments：
As shown in Figure 1 and Figure 2, a kind of moment of torsion shell of Ultra-Low Speed 309 turns steel ball hydraulic motor, including by logical oil distribution shaft 301, double
Arrange the stator of the grade composition of plunger cylinder 308 and be made up of introversion drum 305, left cap 304, right cap 310 and valve plate 309
Rotor is constituted.
Referring to Fig. 3, Fig. 4, the logical center two ends of oil distribution shaft 301 open up respectively it is left and right enter fuel-displaced axial hole and centre (in Fig. 4
3011) automatic valve 3011 of middle row's internal drainage shown in, the axial blind hole bottom hole edge on logical oil distribution shaft has the footpath for connecting
Xiang Kong, radial direction hole surface is provided with groove, and the passage being made up of axial blind hole → radial hole → groove is oil circuit I, by axially blind
The passage that hole → radial hole → groove is constituted is oil circuit II, and no matter hydraulic oil accesses from any oil circuit, automatic valve 3011 through left or
The right side is automatically switched off oil-feed oil circuit and opens fuel-displaced oil circuit, plays automatic row's internal drainage effect.
A left side enters fuel-displaced referring to Fig. 5, there is the double 9 uniform rows of size identical A, B two on the circumference of double plunger cylinder 308
Radial plunger cylinder holes, diverges the post that double headed roller ball-and-socket is installed in 20 ° of angles, plunger cylinder holes between A organ timberings consent and B organ timbering consents
Plug, on plungerSteel ballRolling point is constituted between the curved surface of introversion drum to contact.
Referring to Fig. 6, the inwall of the disk of inner curve 305 is made up of 3 sections of uniform plus-minus curves that wait, and every section of curve-equipartition is into symmetrical
Two sections, one section be oil-feed section, another section be oil return section.
Logical oil distribution shaft 301 and valve plate 309 be installed in the cavity of double plunger cylinder 308, double plunger cylinder 308 with
For spline is fixedly connected between logical oil distribution shaft 301, for bolt is fixedly connected between the one end of valve plate 309 and left cap 304；Introversion
Drum 305 is set in outside double plunger cylinder 309, and is fixedly connected with left and right side cover 304 and 310, the He of left and right side cover 304
Bearing 303 is provided between 310 and logical oil distribution shaft 301.
Thus constitute main by leading to what oil distribution shaft 301, double plunger cylinder 308, plunger 306 and 311 and steel ball 307 were constituted
Stator and the rotor being made up of introversion drum 305, right cap 310, left cap 304 and valve plate 309, rotor pass through left and right side
In the support shaft of bearing 303 set between lid 304 and 310 and logical oil distribution shaft 301, and rotated freely around axle.
Referring to Fig. 7,8,9, valve plate 309, for bolt is fixedly connected between the one end of valve plate 309 and left cap 304；Flow
Disk 309 is provided with left oil inlet and outlet 3092 and right oil inlet and outlet 3091, and left oil inlet and outlet 3092 is connected with oil circuit I, right turnover
Hydraulic fluid port is connected with oil circuit II, and the left oil inlet and outlet 3092 and right oil inlet and outlet 3091 on valve plate 309 are rotated through valve plate 309
Make the oil-feed of double plunger cylinder 308 or fuel-displaced.
Referring to Figure 10, Figure 10 is the structural representation of stick harness.
Referring to Figure 11, hydraulic motor oil circuit schematic diagram, axial blind hole → radial hole → groove → valve plate → double plunger
Cylinder body → valve plate → groove → radial hole → axial blind hole；With the automatic valve of logical oil distribution shaft 301 in wherein double plunger case body
3011 communicate, for automatic row's internal drainage effect, i.e., double plunger cylinder → automatic valve → groove → radial hole → axial blind hole.
To ensure the sealing property of low speed high torque hydraulic motor, corresponding part junction is provided with the sealing such as oil sealing
Device.
The operation principle of hydraulic motor：
Oil circuit I of the pressure oil from logical oil distribution shaft enters into valve plate, enters through valve plate oil inlet and outlet and is in oil-feed area
In the fuel feed hole of the plunger case of section, hydraulic coupling promotes plunger to withstand curved surface one active force of the steel ball to introversion drum, the active force
Radial load and tangential force are can be analyzed to, the torque produced by tangential force then drives inner curve disc spins；When plunger is through introversion drum
Curved surface oil-feed section be transitioned into moment of oil return section, fuel feeding is closed, and drainback passage is opened therewith；Now, inner curve is tortuous
Face pushes back plunger, and plunger case internal volume reduces discharges fluid through another oil inlet and outlet of valve plate from oil circuit II；Work as post
When plug shifts lower dead center onto by the back of the body, the outage of plunger base is closed by valve plate partition wall, and oil entered window is opened immediately.Plunger is often passed through
Cross a curved surface to move back and forth once, oil-feed and oil return are exchanged once.Plunger in plunger cylinder is made back and forth in plunger cylinder holes
Motion, is so gone round and begun again, and continuous drive rotor is rotated.
The work characteristics of hydraulic motor：Curve setting is three sections in the motor body, and double 9 hydraulic motor plungers are adjacent
Two groups of plungers diverge 20 degree, per organ timbering plug in minimum holding work in all the time on every 120 degree of inner curve circumference for more than three,
Stress point uniform operational stabilization, diverges 20 degree between two organ timbering plugs.Minimum 6 or 9 of the plunger of effect, is greatly improved torsion simultaneously
Square, it is ultralow the features such as turn smooth running.
The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (4)
1. a kind of ultra-low speed big torsional moment shell turns steel ball hydraulic motor, including stator and rotor are constituted；
The stator includes logical oil distribution shaft, double plunger cylinder, plunger and steel ball；
The rotor includes introversion drum, right cap, left cap and valve plate；
The logical oil distribution shaft and valve plate are installed in the cavity of the double plunger cylinder,
For spline is fixedly connected between the double plunger cylinder and the logical oil distribution shaft,
For bolt is fixedly connected between described valve plate one end and left cap；The introversion drum is set in double plunger cylinder
Outward, and with left and right side cover be fixedly connected, left and right side cover with it is logical, bearing is provided between oil distribution shaft；
There are the double 9 uniform row's radial plunger cylinder holes of size identical two, two organ timbering plugs on the circumference of the double plunger cylinder
20 ° of angles are diverged between hole；The plunger of double headed roller ball-and-socket is installed, the curved surface of steel ball and introversion drum on plunger in plunger cylinder holes
Between constitute roll point contact.
2. ultra-low speed big torsional moment shell as claimed in claim 1 turns steel ball hydraulic motor, it is characterised in that：The introversion drum it is interior
Wall is made up of 3 sections of uniform plus-minus curves that wait, and every section of curve-equipartition is into two symmetrical sections, and one section is oil-feed section, another
Section is oil return section.
3. a kind of ultra-low speed big torsional moment shell as claimed in claim 1 or 2 turns steel ball hydraulic motor, it is characterised in that：
The logical oil distribution shaft center two ends open up respectively it is left and right enter fuel-displaced axial hole and intermediate row internal drainage automatic valve, wildcard
Axial blind hole bottom hole edge on oily axle has the radial hole for connecting, and radial direction hole surface is provided with groove, by axial blind hole,
The passage that radial hole, groove are constituted is oil circuit I, and the passage being made up of axial blind hole, radial hole, groove is oil circuit II, hydraulic oil
No matter accessed from any oil circuit, automatic valve is automatically switched off oil-feed oil circuit and opens fuel-displaced oil circuit, play automatic row's internal drainage effect.
4. a kind of ultra-low speed big torsional moment shell as claimed in claim 3 turns steel ball hydraulic motor, it is characterised in that：The valve plate
Oil duct respectively with oil circuit I, oil circuit II of left oil inlet and outlet, right oil inlet and outlet be adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621175820.5U CN206190451U (en) | 2016-10-27 | 2016-10-27 | Big moment of torsion shell of ultralow speed changes steel ball hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621175820.5U CN206190451U (en) | 2016-10-27 | 2016-10-27 | Big moment of torsion shell of ultralow speed changes steel ball hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206190451U true CN206190451U (en) | 2017-05-24 |
Family
ID=58733485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621175820.5U Expired - Fee Related CN206190451U (en) | 2016-10-27 | 2016-10-27 | Big moment of torsion shell of ultralow speed changes steel ball hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206190451U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107791824A (en) * | 2017-11-28 | 2018-03-13 | 宁波恒通诺达液压股份有限公司 | Low-speed big shell-rotating hydraulic motor and heavy goods vehicle for vehicle bridge |
| CN108506156A (en) * | 2018-04-13 | 2018-09-07 | 杭州宇控机电工程有限公司 | A kind of deep hydraulic efficiency manipulator elbow joint rotary actuator in full sea |
| CN114151272A (en) * | 2021-12-17 | 2022-03-08 | 浙江大学 | Multi-purpose hollow shaft plunger hydraulic motor |
-
2016
- 2016-10-27 CN CN201621175820.5U patent/CN206190451U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107791824A (en) * | 2017-11-28 | 2018-03-13 | 宁波恒通诺达液压股份有限公司 | Low-speed big shell-rotating hydraulic motor and heavy goods vehicle for vehicle bridge |
| CN107791824B (en) * | 2017-11-28 | 2023-12-05 | 宁波恒通诺达液压股份有限公司 | Low-speed large-torque shell-turning hydraulic motor for axle and heavy transport vehicle |
| CN108506156A (en) * | 2018-04-13 | 2018-09-07 | 杭州宇控机电工程有限公司 | A kind of deep hydraulic efficiency manipulator elbow joint rotary actuator in full sea |
| CN108506156B (en) * | 2018-04-13 | 2023-12-05 | 杭州宇控机电工程有限公司 | Elbow joint swing hydraulic motor for full sea depth hydraulic manipulator |
| CN114151272A (en) * | 2021-12-17 | 2022-03-08 | 浙江大学 | Multi-purpose hollow shaft plunger hydraulic motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20171027 |