CN205714571U - A kind of low-speed direct driving high pulling torque water hydraulic motor with elastic damper - Google Patents
A kind of low-speed direct driving high pulling torque water hydraulic motor with elastic damper Download PDFInfo
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- CN205714571U CN205714571U CN201620384538.1U CN201620384538U CN205714571U CN 205714571 U CN205714571 U CN 205714571U CN 201620384538 U CN201620384538 U CN 201620384538U CN 205714571 U CN205714571 U CN 205714571U
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- bonnet
- hole
- radial
- elastic damper
- flow body
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Abstract
The utility model discloses the low-speed direct driving high pulling torque water hydraulic motor with elastic damper.Due to the vapor pressure of water, bulk modulus, the velocity of sound, density all ratio hydraulic pressure innages, in the work of water hydraulic motor, easily produce cavitation noise, cavitation shock, water hammer noise impact.Multiple plunger of the present utility model is separately mounted in the radial column consent that rotor block is corresponding；Rolling element is loaded in plunger；Stator inner wall constitutes friction pair with rolling element；Stator is the uniform accelerated motion rule curved surface with transition region with the contact surface of rolling element, and is wear-resistant ceramic material layer, and is provided with negative camber micro structure；Flow body constitutes friction pair with rotor, and the flow end face of flow body is provided with bionical texture cell cube；Elastic damper is bearing on rotor block by bearing, and protecgulum is bearing on elastic damper；Protecgulum is bolted with stator and bonnet.Elastic damper of the present utility model substantially increases the anti-vibration of water hydraulic motor, impact resistance ability, improves service life.
Description
Technical field
This utility model belongs to technical field of hydraulic pressure, relates to low-speed big water hydraulic motor, particularly relates to
A kind of low-speed direct driving high pulling torque water hydraulic motor with elastic damper.
Background technology
Low-speed big water hydraulic motor is with fresh water or sea water as working media, and can be changed by water pressure energy
Realize the water hydraulic executive component of continuous rotary motion for mechanical energy, play important in water hydraulic system
Effect.But due to all ratio hydraulic pressure innages such as the vapor pressure of water, bulk modulus, the velocity of sound, density,
Make it easier to produce cavitation noise, cavitation shock, water hammer noise impact etc..These phenomenons are at water hydraulic
It not only can be made during motor movement to there is bigger flow noise and construct noise, but also can produce
Raw exciting, this exciting can cause again the structural vibration of the internal each parts of water hydraulic motor.This oscillation phenomenon
The complexity being the polymorphic type vibration coupling superpositions such as mechanical vibration, fluid oscillation and cavitation shock vibration is existing
As.For the vibration noise overcoming and solving water hydraulic element to exist, its vibration is produced by Chinese scholars
Mechanism and noise control aspect have carried out a lot of research work, but most research still rests on water liquid
On pressing valve element, the research to water hydraulic motor vibration noise is the most little.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, it is provided that a kind of with elastic damper
Low-speed direct driving high pulling torque water hydraulic motor, utilize the speciality of elastic damper self and its with bearing, front
Coordinating of end cap improves the vibration resistance of motor, impact resistance, and then slows down water hydraulic motor and operating
The oscillation phenomenon produced in journey, promotes the service behaviour of motor and increases the service life.
Concrete scheme of the present utility model is as follows:
This utility model includes protecgulum, rotor block, stator, bonnet, flow body, plunger and elastic damping
Device；Described flow body is arranged in the centre bore of bonnet, and forms flow with the flow end face of rotor block
Friction pair；K plunger is separately mounted in the radial column consent that rotor block is corresponding, k >=5, and is integer；
Plunger is placed with, with the hole wall contact surface of radial column consent, the Composite Material Seal Ring that anti-attrition is anti-corrosion；Described
Rolling element is loaded in plunger；K the armature spindle being uniformly distributed along the circumference is had on the flow end face of described rotor block
Xiang Kong, each rotor axial hole communicates with corresponding radial column consent；Described stator sleeve is at rotor
External, and inwall and all rolling elements all constitute rolling friction pair；Described elastic damper by internal ring,
Center ring and outer shroud are constituted, and internal ring is tubular, is bearing on rotor block by bearing；Center ring is tubular,
Being arranged between inner and outer rings, length is less than internal ring, and wall thickness is more than internal ring；The inwall of outer shroud is offered and is laid
The notch of center ring；The outer wall of outer shroud and the inwall tight fit of protecgulum；Protecgulum passes through spiral shell with stator and bonnet
Bolt is fixed, and bolt is provided with elastic washer with the contact surface of bonnet；Protecgulum, bonnet connect with the inwall of stator
Seal with O ring is all passed through at contacting surface；The contact surface of described stator and rolling element be have transition region etc. add
Speed characteristics of motion curved surface, and be wear-resistant ceramic material layer, and it is provided with negative camber micro structure；The circle of flow body
Cylinder offers m the first radial hole being uniformly distributed along the circumference and m the second radial hole being uniformly distributed along the circumference, m
>=k/2, and be integer；First radial hole and the second radial hole circumferentially interlaced arrangement；Each first footpath
Communicate with a corresponding bonnet first flow to hole, each second radial hole and a corresponding bonnet second
Road communicates；The flow end face of flow body offers k the flow body axial hole being uniformly distributed along the circumference, Mei Gepei
A rotor axial hole corresponding with rotor block, fluid axial hole communicates.
As a kind of optimal way, the radial drainage duct of bonnet communicates with axial earial drainage duct, axially lets out
The cavity that discharge orifice road is formed with the half slot on flow body and bonnet, flow body, rotor block and stator
Communicate；Two U-shaped fixing grooves in flow body are corresponding with the two of bonnet pin hole positions, and all pass through
Pin connects.
As a kind of optimal way, the external cylindrical surface of described rotor has h be uniformly distributed along the circumference radially pore
Runner, h >=1, and be integer；All radial direction pore runners all communicate with the interior cylindrical cavity of rotor；Inner circle
The wall in post chamber has annular slot, installs jump ring in annular slot；Baffle plate loads interior cylinder intracavity, and
Axially positioned by jump ring；Between interior cylindrical cavity and baffle plate contact surface, sealing ring is set.
As a kind of optimal way, described rolling element uses steel ball；The plunger inwall contacted with steel ball is
The supporting cavity of circular arc, supporting cavity has radial hole and communicates with the radial column consent of rotor；Plunger and footpath
The plunger annular groove placing Composite Material Seal Ring is had at the hole wall contact surface of plunger hole.
As a kind of optimal way, flow body is positioned at the first radial hole and second radially with the contact surface of bonnet
Both sides, hole are respectively provided with O.
As a kind of optimal way, the flow end face of described flow body is provided with some bionical texture cell cubes.
The beneficial effects of the utility model are: this utility model for during water hydraulic motor running due to
The oscillation phenomenon that multi-scenarios method causes, is designed low-speed direct driving water hydraulic motor.By in stator
Surface texture, material and increase many designs such as elastic damper, and then realize water hydraulic motor
Low vibration and low noise, promote water hydraulic motor service behaviour, extend its service life.This practicality
Novel have mechanism simply, dependable performance, and cost performance advantages of higher is conducive to promoting water hydraulic motor
Productization development.
Accompanying drawing explanation
Fig. 1 is overall structure outline drawing of the present utility model；
Fig. 2 is overall structure sectional view of the present utility model；
Fig. 3 is the structural perspective of stator in this utility model；
Fig. 4 is the structural perspective of flow body in this utility model；
Fig. 5 is this utility model Elastic antivibrator and bearing, the partial sectional view of front cover match.
In figure: 1, elastic washer, the 2, the 3rd O, 3, bolt, 4, stator, the 5, the 2nd O shape
Circle, 6, protecgulum, 7, elastic damper, 8, bearing, 9, lip-type packing, 10, rotor block, 11,
Jump ring, 12, baffle plate, 13, interior cylindrical cavity, 14, sealing ring, 15, radially pore runner, 16, footpath
To plunger hole, 17, Composite Material Seal Ring, 18, steel ball, 19, plunger, 20, rotor axial hole,
21, axial earial drainage duct, 22, radial drainage duct, 23, bonnet, the 24, first O, 25,
Flow body axial hole, 26, half slot, 27, flow body, 28, bonnet first flow, 29, bonnet
Two runners, 30, wear-resistant ceramic material layer, 31, negative camber micro structure, the 32, first radial hole, 33,
Second radial hole, 34, U-shaped fixing groove, 35, bionical texture cell cube, 36, internal ring, 37, center ring,
38, outer shroud.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.
As shown in Fig. 1,2,3,4 and 5, a kind of low-speed direct driving high pulling torque water liquid with elastic damper
Pressure motor, including stator 4, protecgulum 6, elastic damper 7, rotor block 10, steel ball 18, plunger 19,
Flow body 27 and bonnet 23；Flow body 27 is arranged in the centre bore of bonnet 23, and with rotor block 10
Flow end face (opposing friction surfaces) formed flow friction pair；K plunger 19 is separately mounted to rotor block
In the radial column consent of 10 correspondences, k >=5, and be integer；Plunger and the hole wall contact surface of radial column consent
It is placed with the anti-corrosion Composite Material Seal Ring of anti-attrition 17；Steel ball 18 is loaded in plunger 19；Stator 4 is enclosed within
Outside rotor block 10, and inwall all constitutes rolling friction pair with all steel balls 18；Elastic damper 7 passes through
Bearing 8 is bearing on rotor block 10, and protecgulum 6 is bearing on elastic damper 7；Protecgulum 6 and rotor block
10 are sealed by lip-type packing 9；Protecgulum 6 is fixed by bolt 3 with stator 4 and bonnet 23, bolt
3 are provided with elastic washer 1 with the contact surface of bonnet 23；Protecgulum 6, bonnet 23 connect with the inwall of stator 4
Sealed by the second O 5 and the 3rd O 2 respectively at contacting surface；Stator 4 contacts with steel ball 18
Face is the uniform accelerated motion rule curved surface with transition region, it is ensured that the low-speed stable under multiaction power structure
Property, it is more suitable for low-speed direct driving high pulling torque water hydraulic motor.
K the rotor axial hole 20 being uniformly distributed along the circumference, each rotor is had on the flow end face of rotor block 10
An axial hole 20 radial column consent 16 corresponding with on rotor block 10 external cylindrical surface communicates；Rotor block 10
External cylindrical surface also have be uniformly distributed along the circumference h radially pore runner 15, h >=1, and be integer；Institute
Radially pore runner 15 is had all to communicate with the interior cylindrical cavity 13 of rotor block 10；The wall of interior cylindrical cavity 13
Have annular slot, jump ring 11 is installed in annular slot；Baffle plate 12 loads in interior cylindrical cavity 13, and logical
Cross jump ring 11 axially to position；Between interior cylindrical cavity 13 and baffle plate 12 contact surface, sealing ring 14 is set.
The radial drainage duct 22 of bonnet 23 communicates with axial earial drainage duct 21, axial earial drainage duct 21
With the half slot 26 on flow body 27 and bonnet 23, flow body 27, rotor block 10 and stator 4 institute
The cavity formed communicates；Two U-shaped fixing grooves 34 in flow body and two pin hole positions of bonnet 23
Put correspondence, and all connected by pin, flow body 27 can be limited and rotate.
As it is shown on figure 3, the inner surface of stator 1 have employed wear-resistant ceramic material layer 30, and it is provided with negative camber
Micro structure 31, negative camber micro structure is equidistantly to be booked the circular hole of stator 1 inner surface, hexagonal hole, rectangular
Shape hole, hexahedro body opening or elliptical aperture, make stator inner surface have more preferable wearability, improve low speed straight
Drive the service life of high pulling torque water hydraulic motor.
As shown in Figure 4, the face of cylinder of flow body 27 offers m the first radial hole 32 being uniformly distributed along the circumference
Second radial hole 33 that be uniformly distributed along the circumference individual with m, m >=k/2, and be integer；First radial hole 32 and
Two radial hole 33 circumferentially interlaced arrangement；Each first radial hole 32 is first-class with a corresponding bonnet
Road 28 communicates, and each second radial hole 33 communicates with corresponding bonnet second runner 29；Flow body 27
It is positioned at the first radial hole 32 with the contact surface of bonnet 23 and the second radial hole 33 both sides are respectively provided with an O shape
Circle 24；The flow end face of flow body 27 is provided with some bionical texture cell cubes 35, constitutes bionic, non-smooth
Configuration of surface；The flow end face of flow body 27 is further opened with k the flow body axial hole 25 being uniformly distributed along the circumference,
A rotor axial hole 20 corresponding with rotor block, each flow body axial hole 25 communicates.
As it is shown in figure 5, elastic damper 7 is made up of internal ring 36, center ring 37 and outer shroud 38, internal ring
36 is tubular, is placed on bearing 8 outer ring；Center ring 37 is tubular, is arranged between inner and outer rings, long
Degree is more than internal ring less than internal ring, wall thickness；The inwall of outer shroud 38 offers the notch laying center ring.
Should be with the low-speed direct driving high pulling torque water hydraulic motor of elastic damper, operation principle is as follows:
Water hydraulic motor owing to being studied is valve plate distribution, and the water under high pressure that Water Hydraulic Pump provides passes through bonnet
23 the first radial hole 32 or the second radial holes 33 entering flow body 27, then major part water under high pressure enters
Radial column consent 16 on rotor block 10；Enter into the water under high pressure in rotor block 10 by radial column consent
16 bottoms acting on plunger 19, act on the water under high pressure bottom plunger 19 and make plunger 19 at radial water
Move radially outwards under the effect of hydraulic coupling, thus the steel ball 18 being in contact with it is pressed in stator 4
On curved surface, the counteracting force that at this moment steel ball 18 can be given by stator 4 together with plunger 19, counteracting force
The shearing stress decomposited is ultimately applied on rotor block 10 by steel ball 18 and plunger 19, produces torque,
Make rotor block 10 around central rotation, and on output shaft, form certain rotating speed and moment of torsion.Produce certain
While rotating speed and moment of torsion, due to the vapor pressure of water, bulk modulus, the velocity of sound, density etc. all than
Hydraulic pressure innage, motor is easy to produce cavitation noise, cavitation shock, water hammer noise impact etc..These are existing
As it not only can be made during water hydraulic motor movement to there is bigger flow noise and construct noise,
But also exciting can be produced, this exciting can cause again the structural vibration of the internal each parts of water hydraulic motor.
And due to the application of elastic damper in this utility model so that these noises and the produced energy of vibration
Can be consumed most so that it is the damage producing motor weakens much the most therewith.Simultaneously because
Stator is the uniform accelerated motion rule curved surface with transition region with the contact surface of rolling element, and wear-resistant ceramic
Material layer and the application of negative camber micro structure so that motor low-speed stability under multiaction power structure,
Mar proof and corrosion resistance are ensured.These optimizations all make the performance of low-speed direct driving high pulling torque motor obtain
To improving, it is extended service life.
Claims (6)
1. with a low-speed direct driving high pulling torque water hydraulic motor for elastic damper, including protecgulum, rotor block,
Stator, bonnet, flow body, plunger and elastic damper, it is characterised in that: after described flow body is arranged on
In the centre bore of lid, and form flow friction pair with the flow end face of rotor block；K plunger is separately mounted to turn
In the radial column consent that daughter is corresponding, k >=5, and be integer；The hole wall contact surface of plunger and radial column consent is put
It is equipped with the Composite Material Seal Ring that anti-attrition is anti-corrosion；Rolling element is loaded in described plunger；The flow of described rotor block
K the rotor axial hole being uniformly distributed along the circumference, each rotor axial hole and corresponding radial column is had on end face
Consent communicates；Described stator sleeve is outside rotor block, and inwall all constitutes rolling friction pair with all rolling elements；
Described elastic damper is made up of internal ring, center ring and outer shroud, and internal ring is tubular, is bearing in by bearing and turns
In daughter；Center ring is tubular, is arranged between inner and outer rings, and length is less than internal ring, and wall thickness is more than internal ring；
The inwall of outer shroud offers the notch laying center ring；The outer wall of outer shroud and the inwall tight fit of protecgulum；Protecgulum is with fixed
Son and bonnet are bolted, and bolt is provided with elastic washer with the contact surface of bonnet；Protecgulum, bonnet are with fixed
Seal with O ring is all passed through at the contact internal walls face of son；The contact surface of described stator and rolling element is for having transition region
Uniform accelerated motion rule curved surface, and be wear-resistant ceramic material layer, and be provided with negative camber micro structure；Flow body
The face of cylinder offers m the first radial hole being uniformly distributed along the circumference and m the second radial hole being uniformly distributed along the circumference, m
>=k/2, and be integer；First radial hole and the second radial hole circumferentially interlaced arrangement；Each first radially
Hole communicates with a corresponding bonnet first flow, each second radial hole and corresponding bonnet the second runner phase
Logical；The flow end face of flow body offers k the flow body axial hole being uniformly distributed along the circumference, and each flow body is axial
A rotor axial hole corresponding with rotor block, hole communicates.
A kind of low-speed direct driving high pulling torque water hydraulic horse with elastic damper the most according to claim 1
Reach, it is characterised in that: the radial drainage duct of bonnet communicates with axial earial drainage duct, axial earial drainage duct with join
The cavity that half slot on fluid and bonnet, flow body, rotor block and stator are formed communicates；In flow body
Two U-shaped fixing grooves corresponding with the two of bonnet pin hole positions, and all connected by pin.
A kind of low-speed direct driving high pulling torque water hydraulic horse with elastic damper the most according to claim 1
Reach, it is characterised in that: the external cylindrical surface of described rotor has h be uniformly distributed along the circumference radially pore runner, h
>=1, and be integer；All radial direction pore runners all communicate with the interior cylindrical cavity of rotor；The wall of interior cylindrical cavity
Have annular slot, jump ring is installed in annular slot；Baffle plate loads interior cylinder intracavity, and axially fixed by jump ring
Position；Between interior cylindrical cavity and baffle plate contact surface, sealing ring is set.
A kind of low-speed direct driving high pulling torque water hydraulic horse with elastic damper the most according to claim 1
Reach, it is characterised in that: described rolling element uses steel ball；The plunger inwall contacted with steel ball is propping up of circular arc
Holding chamber, supporting cavity has radial hole and communicates with the radial column consent of rotor；Plunger and the hole wall of radial column consent
The plunger annular groove placing Composite Material Seal Ring is had at contact surface.
A kind of low-speed direct driving high pulling torque water hydraulic horse with elastic damper the most according to claim 1
Reach, it is characterised in that: the contact surface of flow body and bonnet is positioned at the first radial hole and the second radial hole both sides are all provided with
Put O.
A kind of low-speed direct driving high pulling torque water hydraulic horse with elastic damper the most according to claim 1
Reach, it is characterised in that: the flow end face of described flow body is provided with some bionical texture cell cubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620384538.1U CN205714571U (en) | 2016-04-29 | 2016-04-29 | A kind of low-speed direct driving high pulling torque water hydraulic motor with elastic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620384538.1U CN205714571U (en) | 2016-04-29 | 2016-04-29 | A kind of low-speed direct driving high pulling torque water hydraulic motor with elastic damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714571U true CN205714571U (en) | 2016-11-23 |
Family
ID=57333398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620384538.1U Expired - Fee Related CN205714571U (en) | 2016-04-29 | 2016-04-29 | A kind of low-speed direct driving high pulling torque water hydraulic motor with elastic damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205714571U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781868A (en) * | 2016-04-29 | 2016-07-20 | 杭州电子科技大学 | Low-speed direct-driven large-torque water hydraulic motor provided with elastic damper |
| CN108748253A (en) * | 2018-08-14 | 2018-11-06 | 上海岭先机器人科技股份有限公司 | A kind of joint of robot based on non-newtonian fluid |
| CN109210025A (en) * | 2017-06-30 | 2019-01-15 | 纳博特斯克有限公司 | anti-cavitation hydraulic circuit |
-
2016
- 2016-04-29 CN CN201620384538.1U patent/CN205714571U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781868A (en) * | 2016-04-29 | 2016-07-20 | 杭州电子科技大学 | Low-speed direct-driven large-torque water hydraulic motor provided with elastic damper |
| CN109210025A (en) * | 2017-06-30 | 2019-01-15 | 纳博特斯克有限公司 | anti-cavitation hydraulic circuit |
| CN108748253A (en) * | 2018-08-14 | 2018-11-06 | 上海岭先机器人科技股份有限公司 | A kind of joint of robot based on non-newtonian fluid |
| CN108748253B (en) * | 2018-08-14 | 2023-11-28 | 上海岭先机器人科技股份有限公司 | Robot joint based on non-Newtonian fluid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20190429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |