CN107420511B - A kind of hydraulic gyration power device - Google Patents
A kind of hydraulic gyration power device Download PDFInfo
- Publication number
- CN107420511B CN107420511B CN201710510734.8A CN201710510734A CN107420511B CN 107420511 B CN107420511 B CN 107420511B CN 201710510734 A CN201710510734 A CN 201710510734A CN 107420511 B CN107420511 B CN 107420511B
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- Prior art keywords
- ring
- brake
- assembly
- hole
- ring segment
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/06—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
- F16D2125/06—Pistons
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of hydraulic gyration power devices, cycloid hydraulic motor assembly is equipped with including inside, wet brake assembly, the housing assembly of speed reducer assembly and power output shaft, the crowned spline output shaft of cycloid hydraulic motor assembly is connect with the brake spline gear spline of wet brake assembly, tripping spring is equipped between the brake piston and spring stop of wet brake assembly, to form fit-up gap, annular slot is equipped in housing assembly at spring stop, the hole retaining ring being spliced to form by splicing ring segment is equipped in annular slot, spring stop is equipped with the positioning column fitted in the retaining ring of hole by the end face of adjacent pores retaining ring, when spring stop overcome the elastic force of tripping spring and recline brake piston when, positioning column exit aperture retaining ring, splicing ring segment at this time is radially movable and exits annular slot.The present invention conveniently installs and uses, and reduces the cost of system, while improving the compression strength of hole retaining ring, and facilitates the installation of hole retaining ring.
Description
Technical field
The present invention relates to a kind of hydraulic power systems, more particularly, to a kind of hydraulic gyration power device.
Background technique
The existing hydraulic power system using cycloid hydraulic motor usually requires axially to connect phase after cycloid hydraulic motor
The deceleration mechanism and fluid pressure type brake apparatus answered, so as to adapt to the different revolving speed of action actuating mechanism connected to it and
The needs of starting torque, cycloid hydraulic motor generally include to have into and out of the logical food tray of hydraulic fluid port and a flow distributor, in logical food tray
Side is equipped with valve plate, setting internal gear (stator) and the rotor cycloid gear with internal gear with eccentric distance e in flow distributor
(rotor) is engaged between internal gear and rotor cycloid gear using cycloidal pin teeth.In order to facilitate processing, internal gear would generally use
Embedded structure is embedded cylindrical needle tooth in needle tooth post hole.Internal splined hole is set in rotor cycloid gear, is spent inside
Keyhole internal spline connects a crowned spline output shaft.The multiple closing inter-tooth volumes of shape between internal gear and rotor cycloid gear,
The half that flow distributor makes to close in inter-tooth volume is in higher-pressure region, passes through flow distributor and high pressure in the closing inter-tooth volume of higher-pressure region
Hydraulic oil be connected, to constitute oil suction chamber；The other half in closing inter-tooth volume is in low-pressure area, the closing tooth of low-pressure area
Between be connected by flow distributor with the oil return line of hydraulic system in volume, to constitute oil back chamber.Closing in higher-pressure region
Pressure oil in inter-tooth volume makes rotor cycloid gear form a hydraulic torque, to drive rotor cycloid gear with eccentricity
E is that radius around internal gear makees planetary motion, rotor cycloid gear when being rolled along internal gear, close in inter-tooth volume into,
Oil back chamber is constantly changing.For example, one kind is disclosed in Chinese patent literature, " huge discharge inlays pillar and turns hydraulic due to secondary cycloid
The stator of motor ", publication No. CN103629043A, the invention is spliced by two fissions, passes through O between two seperated stators
Type sealing ring is sealed, and rotor is an overall structure, the needle tooth in the needle perforation of two seperated stators be an entirety or
For two fissions, the length of needle tooth and the length of rotor are suitable, rotor internal spline be it is discontinuous, during universal driving shaft and rotor are engaged in
The internal spline in portion.The invention can increase the discharge capacity of motor, and anufacturability is good, and the properties of huge discharge motor are steady
It is fixed, can meet the needs of huge discharge axis valve flow distribution cycloid hydraulic motor.
However there are the following problems for existing hydraulic power system: user needs individually buying, configuration hydraulic motor, liquid
Pressure type brake and deceleration mechanism, the inconvenience on the one hand causing assembly connection, using, while increase the axial dimension of system
Greatly, it is unfavorable for saving assembly space, and the overall cost of system is high.
In addition, wet multi-disc brake is a kind of hydraulic brake common at present, it is commonly divided into closed type or normal
Open form, as Figure of description 1 shows a kind of wet multi-disc brake of existing closed type comprising there are working cavities
12 housing assembly 1, brake spline gear 31, brake piston, brake strip 33, tripping spring, spring stop 34, Kong Yong
Retaining ring 36 etc..Brake strip is intertwined and is constituted by several fixed friction pieces and rotating friction plate, brake strip peace
In the working cavities of the brake casing of the sealing filled with cooling oil, fixed friction piece passes through external splines and arrester shell
Body connection, rotating friction plate is connect by internal spline with brake spline gear, and is rotated with brake spline gear.When
When fixed friction piece and rotating friction plate are bonded to each other and generate frictional force, brake is in on-position, braking at this time
Device spline gear can not relative brake device housing into rotation；When fixed friction piece and rotating friction plate are separated from each other, pivoting friction
Piece can follow brake spline gear, and relatively fixed friction plate is freely rotated together, and brake spline gear then can relative brake device
Shell is freely rotated.Brake piston is held snugly against rotating friction plate and fixed friction piece one
It rises, so that brake be made to be in on-position.When needing work, hydraulic system inputs liquid into the inflow pipeline of brake casing
Pressure oil can remove the preload pressure between rotating friction plate and fixed friction piece so that brake piston be driven to move backward, this
When fixed friction piece and rotating friction plate be separated from each other, so that brake is switched to working condition by on-position.
However, existing closed type wet multi-disc brake has following defects that when brake enters on-position, liquid
The hydraulic oil of pressure system high pressure can enter the working cavities and system of brake casing by the inflow pipeline on brake casing
Between piston, so that brake piston is driven to move backward and be resisted against on spring stop, and spring stop then relies on hole to keep off
Circle positions in the axial direction.That is, hole retaining ring at this time can bear high pressure.In order to ensure the stabilization work of brake
Make, it is generally the case that corresponding pressure maintaining valve can be arranged in people in the hydraulic system for braking, to be used in the liquid of braking
Oil pressure controls the level in 5MPa or so, and hole retaining ring is avoided to damage because of excessively high pressure.Due to hole with retaining ring be according to
Be installed in the installation annular groove in arrester shell body by flexible deformation, therefore, the cross sectional dimensions of hole retaining ring will receive compared with
Big limitation, so that hole be made to be extremely limited with the compression strength of retaining ring itself and corresponding service life.In addition, by
To the hole limitation of retaining ring elastic deformation amount, the interior depth to the annular slot of mounting hole retaining ring of arrester shell body be will receive
Biggish limitation, thus the further axial bearing capacity of limiting holes retaining ring, in particular, when user's neglected loading due to carelessness is steady
When pressure valve or pressure maintaining valve break down, the hydraulic fluid pressure of braking can rise very rapidly up to 15-35MPa or so, and hole retaining ring is held
The pressure received can also exceed its specified pressure-bearing range, so as to cause the damage of hole retaining ring.It is understood that when we are suitable
When locality increases the cross sectional dimensions of hole retaining ring, power required for its elastic deformation can be greatly increased, to increase hole use
The installation difficulty of retaining ring.
Summary of the invention
The first purpose of this invention is to solve assembly connection present in existing hydraulic power system and use
The problem that inconvenient, system axial dimension is big and the overall cost of system is high, provides a kind of hydraulic gyration power device,
Installing and using for system can greatly be facilitated, be conducive to the axial dimension of reduction system, and reduce the cost of system.
Second object of the present invention is to solve present in the wet brake in existing hydraulic power system
The problem that hole retaining ring is difficult to install and hole is low with retaining ring compression strength, service life is short provides a kind of hydraulic gyration power
Device improves the compression strength of brake inner hole retaining ring in which can dramatically, and greatly facilitates the installation of hole retaining ring, Jin Eryou
Conducive to the service life for improving brake.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of hydraulic gyration power device, including housing assembly, housing assembly is interior to be equipped in the work for penetrating through left and right ends
Chamber, it is total that the working cavities of housing assembly are successively arranged cycloid hydraulic motor assembly, wet brake assembly, retarder from left to right
At and power output shaft, the cycloid hydraulic motor assembly include the logical food tray that housing assembly left end is set, setting in logical oil
Valve plate on the right side of disk, the flow distributor on the right side of valve plate lead to food tray and are equipped with oil inlet and oil outlet, be equipped in flow distributor
The internal gear and rotor cycloid gear engaged using cycloidal pin teeth is equipped with the cydariform connecting with its spline in rotor cycloid gear
Splined output shaft, wet brake assembly includes brake spline gear, the bullet that is abreast set on brake spline gear
Spring baffle, brake piston and brake strip, brake spline gear is interior to be equipped with internal splined hole, the right end of crowned spline output shaft
It is connect with the internal splined hole spline of brake spline gear, brake strip includes fixed friction piece spaced apart in the axial direction
And rotating friction plate, spline connection, fixed friction piece and working cavities are formed between rotating friction plate and brake spline gear
Between formed spline connection, between brake piston and spring stop be equipped with tripping spring, so that brake piston be made to stand tightly against the right side
The brake strip of side, and fit-up gap is formed between spring stop and brake piston, in working cavities close to spring stop
Place is equipped with annular slot, the hole retaining ring of the circular ring shape for the spring stop that reclines is equipped in annular slot, hole retaining ring is by 3-4 cross
The splicing ring segment of rectangular in cross-section is spliced to form, and spring stop is equipped with by the end face of adjacent pores retaining ring and fits in the retaining ring of hole
Positioning column, when spring stop overcome the elastic force of tripping spring and recline brake piston when, positioning column exit aperture retaining ring, at this time
Splicing ring segment it is radially movable and exit annular slot, the right end of brake spline gear is integrally provided with connecting shaft, the company
Spindle is connected by speed reducer assembly with power output shaft, the right end that power output shaft stretches out housing assembly be equipped with can with it is dynamic
The output gear being connected as executing agency.
Cycloid hydraulic motor assembly, wet brake assembly, speed reducer assembly are integrated in a housing assembly by the present invention
It is interior, thus formed an integral structure hydraulic gyration power device, can greatly convenient for users to install and use.Due to shell
Working cavities in body assembly penetrate through left and right ends, and therefore, the logical food tray of housing assembly left end both may make up cycloid hydraulic motor
A part, and can play the role of housing assembly left end capping, realize working cavities in hydraulic oil sealing.In addition, liquid
Press internal splined hole spline of the right end of the crowned spline output shaft of gerotor motor directly with wet brake brake spline gear
Therefore connection is conducive to reduce axial dimension and corresponding connecting elements, so as to reduce manufacturing cost.
Unlike the prior art, hole in wet brake assembly of the invention is splicing structure with retaining ring,
It is substantially spliced to form in the splicing ring segment of fan annular by 3-4, so that it be facilitated to be packed into the annular slot of working cavities.Also
It is to say, hole retaining ring of the invention is not necessarily to be easily loaded into annular slot by flexible deformation, therefore, can be as needed
Its thickness equidimension and corresponding heat treatment process are set, and correspondingly increase the depth of annular slot, to can dramatically ground
Axial bearing capacity after increasing the mechanical strength of hole retaining ring itself and being mounted in annular slot, effectively improves wet type
The service life of brake avoids problem due to neglected loading pressure maintaining valve in use process.In particular, when spring stop overcomes
The elastic force of tripping spring and recline brake piston when, positioning column can exit the hole retaining ring being spliced by splicing ring segment.Therefore, I
Be both convenient to make to splice ring segment and move radially and exit annular slot, being also convenient to, which makes to splice ring segment, moves radially and blocks
Enter in annular slot, then release spring baffle, the positioning column of spring stop end can be made to enter and be spliced by splicing ring segment
Hole retaining ring inner hole in, be reliably positioned at hole in annular slot with retaining ring.
Preferably, the end face of brake piston is equipped with 2 threaded mounting holes, spring stop is in corresponding threaded mounting holes
Position is equipped with bolt assembly through-hole and corresponding counterbore, when needing pilot hole retaining ring, is first packed into bolt assembly through-hole
Bolt is assembled, and is threadedly coupled assembly bolt with threaded mounting holes, assembly bolt is then successively tightened, spring stop can be made
It is snug against brake piston, tripping spring at this time is compressed, and is then put into work with an assembly device by ring segment is spliced
In chamber, make to splice ring segment and recline spring stop, and be displaced outwardly splicing ring segment, makes to splice ring segment detent into annular slot, from
And it is spliced to form the hole retaining ring of circular ring shape.
In the prior art, people are more that mounting hole is used by way of applying an extruding force on spring stop
Retaining ring, tripping spring at this time is partially compressed and forms a pre-pressing force.Since the elastic force of tripping spring is larger, because
This, extruding spring stop is more troublesome, in particular, also needing hole being embedded into annular with retaining ring while squeezing spring stop
In card slot, therefore, entire assembling process can be extremely difficult.Threaded mounting holes are arranged on the end face of brake piston in the present invention, from
And so that spring stop is reclined brake piston by tightening assembly bolt, it is not only laborsaving, but also can be to the extruding of spring stop
Process steadily controls, and then can be easily loaded into hole in annular slot with retaining ring, then unscrews assembly bolt, i.e., releasable bullet
Spring stop can be driven tightly against hole retaining ring in spring baffle, tripping spring.
Preferably, the end face of adjacent two splicings ring segment is bonded to each other to form Mosaic face, the Mosaic face of hole retaining ring exists
Circumferencial direction is uniformly distributed, the axis of Mosaic face offset bore retaining ring, to make the end face for splicing ring segment side and splicing ring segment
Medial surface formed in one and splice acute angle, the lateral surface of the end face and splicing ring segment of splicing the ring segment other side, which is formed outside one, spells
Connect acute angle.
It is several when needing to split into the hole of a circular ring shape with retaining ring as the habitual thinking of those skilled in the art
When splicing ring segment, the fan annular of standard can be made in each splicing ring segment, in this way, entering annular slot for the ease of splicing ring segment
Interior, the arc length of each splicing ring segment needs to shorten than standard arc length, that is to say, that when splicing ring segment splices shape in annular slot
When pore-forming retaining ring, a gap must be will appear between the end face of two adjacent splicing ring degree, otherwise, the last one splicing
Ring segment will be unable to be put into annular slot.And the axis of the Mosaic face offset bore retaining ring between two splicing ring segments of the invention
And shape is at a tilt angle, and the inclined direction of each Mosaic face of hole retaining ring is consistent.Therefore, we can make to splice ring segment
Outer splicing acute angle one end be introduced into annular slot, then successively swing splicing ring segment, make splice ring segment interior splicing acute angle
One end sequentially enters in annular slot, and then a sliceable hole retaining ring very close to each other out, is conducive to improve hole retaining ring
Intensity, avoid splicing the relative displacement between ring segment in use.
Preferably, the quantity of splicing ring segment is 4, splicing ring segment side is equipped with rotation hole, and splicing ring segment turns in setting
The outside of dynamic hole one end is equipped with evacuation notch, and the assembly device includes magnetic attraction sleeve and is rotatably arranged in magnetic attraction sleeve
Propeller shaft sleeve, be rotationally equipped with 4 positioning pins being adapted to rotation hole in magnetic attraction sleeve end face, 4 positioning pins are in circumference
Direction is uniformly distributed, and positioning pin is equipped with torsional spring, and propeller shaft sleeve end sides are equipped with 4 in the equally distributed driving of circumferencial direction
When needing pilot hole retaining ring, it is corresponding to be first sequentially sleeved at magnetic attraction sleeve end face by inclined-plane for the rotation hole that 4 splice ring segment one end
Positioning pin on, splice ring segment at this time and be attracted on magnetic attraction sleeve end face, and the other end for splicing ring segment deflects inward one
Initial angle, and the corresponding driving inclined-plane of the propeller shaft sleeve that reclines；Then magnetic attraction sleeve is protruded into working cavities, magnetic attraction sleeve end
The splicing ring segment in portion reclines spring stop；4 driving inclined-planes of then rotate driving axle sleeve, propeller shaft sleeve drive corresponding spelling
Ring segment is connect to swing out, until the end face of adjacent two splicing ring segments is bonded to each other to form Mosaic face, 4 splicing ring segments at this time
It is spliced to form hole retaining ring of the detent into annular slot.
The present invention for pilot hole retaining ring assembly device include on the outside of magnetic attraction sleeve and inside propeller shaft sleeve, this
Sample can make splicing ring segment be adsorbed on magnetic when the rotation hole set for splicing ring segment is set on the positioning pin of magnetic attraction sleeve by we
The end of sleeve, and positioning pin can be made into polygon, or mill out a flat gesture on cylindrical positioning pin, to make to splice
Ring segment can effective position on positioning pin.And the torsional spring on positioning pin can then be such that the interior splicing acute angle one end for splicing ring segment is biased inwardly
Turn an initial angle, and the corresponding driving inclined-plane of the propeller shaft sleeve that reclines, that is to say, that the end of adjacent two splicings ring segment at this time
It is separated between face.Then pivotable drive axle sleeve, the driving inclined-plane of propeller shaft sleeve can make 4 splicing ring segments synchronous at this time
Ground is swung out, until the end face of adjacent two splicing ring segments is bonded to each other to form Mosaic face, 4 splicing ring segments splicing at this time
Hole retaining ring of the detent into annular slot is constituted, then can extract assembly device out, splicing ring segment and magnetic attraction sleeve at this time
Separation, to realize the quick convenient installation of hole retaining ring.It is understood that since splicing ring segment splices acute angle one end outside
Outside be equipped with evacuation notch, therefore, when splicing ring segment and being in one initial angle position of deflection, it is entire splice ring segment can position
In in the working cavities of brake casing；When gradually make to splice ring segment by propeller shaft sleeve swing out when, splicing ring segment can be by
Stepping enters in annular slot.
Preferably, the positioning that the outside of the housing assembly right end is equipped with coaxial mounting flange and cylinder stops
Mouthful, the mounting flange is equipped in equally distributed at least 12 bolt holes of circumferencial direction, the positioning spigot and dynamic
There is an eccentricity between power output shaft.
Mounting flange of the invention is connected with the action actuating mechanism of user, the shell of action actuating mechanism
It is upper that there is corresponding ring flange and the positioning circular groove with positioning spigot adaptation, then have and output gear of the invention in shell
Take turns the power input gear being meshed.In the prior art, people's ordinary practice is designed in by positioning spigot and power output shaft
At coaxial, in this way, when there is deviation in the relative position of the positioning circular groove on the power input gear and shell in action actuating mechanism
When, that is, it will cause the deviation of the space width of output gear and power input gear, to influence output gear and power input tooth
Power transmission efficiency between wheel, or even cause the problems such as can not connecting installation.And the present invention is in positioning spigot and power output
There is an eccentricity, therefore, when we make positioning spigot and action actuating mechanism with different adaptation adjustment angles between axis
Positioning circular groove when fitting in together, different space widths can be formed between output gear and power input gear, so as to
Ensure that optimal space width can be formed between output gear and power input gear.In particular, mounting flange is equipped in circle
Therefore on the one hand equally distributed at least 12 bolt holes of circumferential direction can ensure that mounting flange and action actuating mechanism
Being reliably connected on whole circumference direction and producing balanced forces between ring flange, while making positioning spigot and action actuating mechanism
The smallest adaptation less than or equal to 30 degree can be formed between positioning circular groove to adjust the angle.
Preferably, being equipped with the sliding annular groove of circular ring shape close to the side of valve plate in logical food tray, lead to food tray in slip ring
It is respectively equipped with inner seal ring slot and external seal annular groove inside and outside slot, is equipped with several balls in the sliding annular groove, ball
Diameter is greater than the depth of sliding annular groove, to make to form gap between valve plate and logical food tray, divides in the inside and outside closure gasket groove
It She You not sealing ring.
When formed between valve plate and logical food tray relatively rotate when, slide the ball in annular groove make valve plate and logical food tray it
Between form gap, to make that rolling friction can be formed between valve plate and logical food tray, reduce its frictional resistance significantly.And interior,
Sealing ring in external seal annular groove then can ensure that the sealing performance between valve plate and logical food tray.
Preferably, the sealing ring is including setting, the O-ring seal of outer seal ring trench bottom, and setting exists
The fluoroplastic seal ring of inside and outside closure gasket groove opening portion.
When forming relative rotation between valve plate and logical food tray, O-ring seal follows logical food tray to rotate together, and has bullet
Property O-ring seal can to fluoroplastic seal ring formed a stable extruding force, so that it is guaranteed that it is formed between valve plate
Good sealing, and fluoroplastic seal ring has good self-lubricating property, therefore advantageously reduces rubbing between valve plate
Wipe resistance.
Therefore, the invention has the following beneficial effects: conveniently installing and using, be conducive to the axial dimension of reduction system, and
The cost of reduction system, while the compression strength of brake inner hole retaining ring is improved, and greatly facilitate the installation of hole retaining ring,
And then be conducive to improve the service life of brake.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of cycloid hydraulic motor assembly.
Fig. 3 is the structural schematic diagram for leading to food tray in Fig. 2.
Fig. 4 is the structural schematic diagram of wet brake assembly.
Fig. 5 is a kind of structural schematic diagram of hole retaining ring of the present invention.
Fig. 6 is a kind of structural schematic diagram that hole of the invention is in contraction state with retaining ring.
Fig. 7 is the structural schematic diagram when hole in Fig. 5 is outwardly opened with retaining ring.
Fig. 8 is the structural schematic diagram when hole in Fig. 5 is outwardly opened in place with retaining ring.
Fig. 9 is a kind of structural schematic diagram of assembly device of the invention.
In figure: 1, housing assembly 11, housing unit 12, working cavities 121, annular slot 13, connecting flange
Disk 14, positioning spigot 2, cycloid hydraulic motor assembly 21, logical food tray 211, sliding annular groove 212, ball 213,
Inner seal ring slot 214, O-ring seal 216, fluoroplastic seal ring 22, valve plate 23, is matched at external seal annular groove 215
Flow device 231, internal gear 232, rotor cycloid gear 24, crowned spline output shaft 3, wet brake assembly 31,
Brake spline gear 311, connecting shaft 32, brake piston 321, spring retention hole 322, threaded mounting holes 33,
Brake strip 331, fixed friction piece 332, rotating friction plate 34, spring stop 341, positioning column 342, bolt
Assemble through-hole 35, tripping spring 36, hole retaining ring 361, splicing ring segment 362, interior splicing acute angle 363, outer splicing
Acute angle 364, rotation hole 365, evacuation notch 4, speed reducer assembly 41, primary centre wheel 5, power output shaft 6,
Output gear 7, magnetic attraction sleeve 71, positioning pin 8, propeller shaft sleeve 81, driving inclined-plane.
Specific embodiment
The present invention will be further described with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, a kind of hydraulic gyration power device, including be spliced to form by a few piece housing units 11 are laterally axial
Housing assembly 1, in order to assemble and subsequent maintenance.The working cavities 12 of setting perforation left and right ends in housing assembly,
The working cavities of housing assembly set gradually cycloid hydraulic motor assembly 2, wet brake 3,4 and of speed reducer assembly from left to right
Power output shaft 5, to constitute the hydraulic gyration power device of an integral structure, multistage is can be used in speed reducer assembly therein
Planetary reduction gear structure, revolving speed caused by cycloid hydraulic motor assembly pass through power output shaft after the speed change of speed reducer assembly
Output, to drive subsequent action actuating mechanism to work, and wet brake assembly then can control hydraulic gyration power device
Operating condition.
In addition, cycloid hydraulic motor assembly includes the logical food tray 21 that housing assembly left end is arranged in, setting on the logical food tray right side
The valve plate 22 of side, the flow distributor 23 on the right side of valve plate lead to and oil inlet and oil outlet are arranged on food tray, setting in flow distributor
The internal gear 231 and rotor cycloid gear 232 engaged using cycloidal pin teeth, is arranged in rotor cycloid gear and is connect with its spline
Crowned spline output shaft 24.Since cycloid hydraulic motor belongs to the prior art, not to its specific knot in the present embodiment
Structure, working principle etc. do excessive description.
It is fixed on housing assembly since cycloid hydraulic motor assembly leads to food tray at work, and valve plate can be opposite
Logical food tray rotation, in order to improve the leakproofness between logical food tray and valve plate, as shown in Figure 2 and Figure 3, we can lean in logical food tray
The sliding annular groove 211 of the side setting of the nearly valve plate circular ring shape coaxial with the center of rotation of valve plate, the interior setting of sliding annular groove
Several balls 212, the depth that the diameter of ball is greater than sliding annular groove are matched to make to form gap between valve plate and logical food tray
Rolling friction is formed between flow table and logical food tray, to reduce its frictional resistance significantly.Furthermore, it would be desirable on logical food tray
Inner seal ring slot 213 is arranged in the inside for sliding annular groove, the outside setting external seal annular groove 214 of sliding annular groove on logical food tray, interior,
Sealing ring is respectively set in external seal annular groove, to realize the sealing between valve plate and logical food tray.
Further, the arc made of polytetrafluoroethylene (PTFE) can be arranged between adjacent two balls in sliding annular groove in we
Divider 215, thus make to slide ball in annular groove can annular equidistantly distributed, to be conducive between valve plate and logical food tray
Good rolling friction is formed, and arc divider made of polytetrafluoroethylene (PTFE) has good self-lubricating property and wearability
Can, advantageously reduce the frictional resistance between ball.In addition, sealing ring includes that O-ring seal 216 and polytetrafluoroethylene (PTFE) are made
Fluoroplastic seal ring 217, wherein including O-ring seal setting, the bottom of external seal annular groove, fluoroplastic seal ring is then arranged
Inside and outside closure gasket groove opening portion, and be laminated in O-ring seal.When forming relative rotation between valve plate and logical food tray, O
Type sealing ring follows logical food tray to rotate together, and flexible O-ring seal forms one to fluoroplastic seal ring and stable squeezes
Pressure makes fluoroplastic seal ring that O-ring seal be followed to rotate together, and then forms sliding between fluoroplastic seal ring and valve plate and rubs
It wipes, and forms good sealing between valve plate.Due to O-ring seal and inside and outside closure gasket groove and fluoroplastic seal ring
There is no relative friction, and fluoroplastic seal ring has good self-lubricating property, therefore advantageously reduces sealing ring and valve plate
Between frictional resistance.
As Figure 1 and Figure 4, wet brake assembly of the invention it include be arranged in working cavities brake flower
Key teeth wheel 31, brake piston 22 and the brake strip 33 being set on brake spline gear, the right side of brake spline gear
The connecting shaft 311 of end setting one, connecting shaft are connected with the primary centre wheel 41 of speed reducer assembly input terminal, power output shaft
Then it is connected with the output end of speed reducer assembly, the right end setting that power output shaft stretches out housing assembly can be with movement execution machine
The output gear 6 that structure is connected.And brake strip then includes spaced several fixed friction pieces 331 and rotating friction plate
332, spline connection is formed between rotating friction plate and brake spline gear, and flower is formed between fixed friction piece and working cavities
Key connection.The right end of brake piston reclines brake strip, and spring stop 34 is arranged in the left end of brake piston, in spring stop and
Tripping spring 35 is set between brake piston, annular slot 121 is set at spring stop in working cavities, in annular slot
The hole retaining ring 36 of circular ring shape is set, to limit in the axial direction to spring stop, compression of the tripping spring by spring stop
And a preload pressure is generated, to drive brake piston tightly against brake strip, wet brake is made to be in braking
State.Certainly, it would be desirable to which internal splined hole, the right end and brake of crowned spline output shaft are set in brake spline gear
The internal splined hole spline of spline gear connects, so that cycloid hydraulic motor assembly be made to link together with wet brake assembly.
When wet brake is in on-position, brake spline gear is in lockup state, and cycloid hydraulic motor assembly is defeated at this time
The crowned spline output shaft of power is locked up out.
As shown in figure 5, the difference is that, hole retaining ring of the invention is by 3-4 cross section in the spelling of rectangle with the prior art
It connects ring segment 361 to be spliced to form, it is preferable that the quantity for splicing ring segment is 4, and spring stop is set in the left end face of splice sections
There is cylindrical positioning column 341, the outer diameter of the positioning column is adapted with the internal diameter D of hole retaining ring.And brake piston is close to spring
Spring retention hole 321 is set in the left end face of baffle, and tripping spring is located in spring retention hole, is on the one hand conducive to brake bullet
The positioning of spring, while being conducive to increase the length of tripping spring, so that tripping spring is formed enough preload pressures.Tripping spring makes
The left end of spring stop is held snugly against hole retaining ring, and an assembly is then formed between the right end of spring stop and brake piston
Gap F move spring stop can to the right in the axial direction.The periphery on the inside of splicing ring segment at this time reclines on spring stop
Positioning column on the outside of periphery, thus make splice ring segment be located in annular slot.We can make the height of positioning column small
In equal to fit-up gap, it is preferable that the height of positioning column is 0.2-0.5mm smaller than fit-up gap F, to make the axial direction of spring stop
Moving distance is greater than the height of positioning column.In this way, when spring stop overcome the elastic force of tripping spring and recline brake piston when, bullet
The positioning column of spring baffle end can exit aperture retaining ring completely, splicing ring segment at this time it is radially movable and exit annular slot or
Into in annular slot, to easily assemble or remove hole retaining ring.
In order to facilitate assembly, we can be symmetrically arranged 2 threaded mounting holes 322 on the end face of brake piston, and bullet
Spring baffle assembles through-hole 342 and corresponding counterbore in the position setting bolt of corresponding threaded mounting holes, then assembles in bolt
It is packed into the assembly bolt on bolt head with interior hexagonal groove in through-hole, and fills assembly bolt and screw thread by allen wrench
Distribution is threadedly coupled.Then 2 assembly bolts, i.e., compressible tripping spring are successively tightened, and spring stop is made to be snug against system
Piston.Certain bolt assembly through-hole and counterbore should be located at the region within the inner hole of hole retaining ring, assemble hole to wait
With assembly bolt dismountable after retaining ring.
The present invention can assemble device with one and the splicing ring segment for fanning annular is put into working cavities, and splicing ring segment is made to recline
Then spring stop is displaced outwardly splicing ring segment, make to splice ring segment detent into the annular slot of working cavities, to splice structure
At the hole retaining ring of circular ring shape.Mosaic face is formed when the end face that adjacent two splice ring segment is bonded to each other, thus entire
4 are formed on the retaining ring of hole in the equally distributed Mosaic face of circumferencial direction.Particularly, the Mosaic face of hole retaining ring of the present invention should be inclined
Axis from hole retaining ring, so that the medial surface for making to splice end face and the splicing ring segment on the left of ring segment forms in one and splices acute angle
362, the lateral surface for splicing end face and the splicing ring segment on the right side of ring segment, which is formed, splices acute angle 363 outside one, and leans in splicing ring segment
A rotation hole 364 is arranged in the right side of nearly outer splicing acute angle.That is, splicing ring segment is not the fan annular an of standard.
In addition, as shown in figure 9, assembly device of the invention includes a magnetic attraction sleeve 7 and is rotatably arranged in magnetic
4 rotatable positioning pins 71 are arranged in magnetic attraction sleeve end face in propeller shaft sleeve 8 in sleeve, and the shape of the positioning pin should be with spelling
The rotation hole shape adaptation of ring segment is connect, and 4 positioning pins are uniformly distributed in circumferencial direction.The end of positioning pin and rotation hole cooperation
Portion can be made into positive multi-edge column-shaped, or the cylinder with flat gesture is made, thus can be positioned on splicing ring segment on positioning pin, and
Mutually transmitting torque.In addition, propeller shaft sleeve end sides settable 4 in magnetic attraction sleeve are in the equally distributed drive of circumferencial direction
Move inclined-plane 81, settable corresponding torsional spring on positioning pin, to make positioning pin that there is an initial alignment angle.In this way, as schemed
6, shown in Fig. 7, Fig. 8, the rotation hole that 4 splice ring segment first can be sequentially sleeved at the corresponding positioning pin in magnetic attraction sleeve end face by us
On, splice ring segment at this time and be attracted on magnetic attraction sleeve end face, under the action of torsional spring, splices interior splicing acute angle one end of ring segment
An initial angle, and the corresponding driving inclined-plane of the propeller shaft sleeve that reclines are deflected inward, splicing ring segment at this time is in contraction state；
Then magnetic attraction sleeve is protruded into working cavities, the splicing ring segment of magnetic attraction sleeve end reclines spring stop；Then positively turn
Dynamic propeller shaft sleeve, 4 driving inclined-planes of propeller shaft sleeve are that interior splicing acute angle one end of corresponding splicing ring segment is driven to swing out,
Until the end face of adjacent two splicing ring segments is bonded to each other to form Mosaic face, 4 splicing ring segments at this time are spliced to form detent and arrive
Hole retaining ring in annular slot.Finally, we only need to remove assembly device outward, splicing ring segment is made to overcome magnetic attraction and magnetic
Sleeve separation, splicing ring segment can steadily detent in annular slot.It should be noted that we need in splicing ring segment tool
There is the outside setting evacuation notch 365 of the right end of outer splicing acute angle, it is outer on the right side of the splicing ring segment in contraction state to make
Splicing acute angle can be located in working cavities, to be easily loaded into working cavities.And magnetic attraction sleeve then can be iron by permanent magnetic
At alternatively, splicing construction can also be made in magnetic attraction sleeve by us comprising a sleeve body is set in the end of sleeve body
It sets one and adsorbs circle body made of permanent magnet.
It should be noted that the medial surface and lateral surface due to splicing ring segment are cylindrical surface, for the convenience of description, we
The intersection for splicing ring segment left end face and inner peripheral surface is known as A, intersection A will be passed through and the tangential plane tangent with inner peripheral surface
The intersection for splicing ring segment right end face and outer circumference surface is known as C by referred to as B, will by intersection C and with outer circumference surface is tangent cuts
It is known as E to plane, in this way, the interior splicing acute angle in the present embodiment refers between the left end face and tangential plane B of splicing ring segment
Angle, and splice outside acute angle refer to splicing ring segment right end face and tangential plane E between angle.
It is made in addition, splicing ring segment and 42CrMo preferably can be used, and splice ring segment to make by modifier treatment technique
Its ball hardness number controls between 270-310, to promote the bearing strength of splicing ring segment significantly.
For the ease of the assembly connection with subsequent action actuating mechanism, as shown in Figure 1, we can be in housing assembly right end
Outside the positioning spigot 14 of coaxial mounting flange 13 and cylinder is set, be arranged on mounting flange in circumferencial direction
Equally distributed at least 12 bolt holes, preferred value are 18, thus corresponding to making between adjacent two bolt holes
Central angle is 20 degree, has an eccentric distance e between positioning spigot and power output shaft.Mounting flange of the invention is and makes
What the action actuating mechanism of user was connected, therefore, on the shell of action actuating mechanism should have corresponding with mounting flange
Ring flange and positioning circular groove with positioning spigot adaptation, then have in shell and that output gear of the invention is meshed is dynamic
Power input gear should also have 18 corresponding bolt holes or threaded hole certainly on the ring flange of action actuating mechanism.This
Sample, when the positioning circular groove of positioning spigot and action actuating mechanism, which fits in, to be positioned together, output gear and power input gear
It is meshed.When we adjust positioning spigot and position circular groove relative angle when power output shaft can radius e around positioning
The center rotating of circular groove, so as to adjust the center between power output shaft and power input gear away from.
For ease of description, bolt hole corresponding on mounting flange and ring flange is known as first by us in order
Bolt hole, second n-th bolt hole of bolt hole ... etc..The power caused by action actuating mechanism is because of manufacture, rigging error
When there is deviation in the relative position of positioning circular groove on input gear and shell, we can make mounting flange relative motion execute machine
The ring flange of structure relatively rotates an adjustment angle, which should be 20 degree of integral multiple, with motivation of adjustment output shaft with
Center between power input gear is away from so that can ensure that can form optimal between cog between output gear and power input gear
Away from the first bolt hole on mounting flange and the n-th bolt hole on ring flange or threaded hole are corresponding at this time, connection method
The second bolt hole on blue disk and the (n+1)th bolt hole on ring flange or threaded hole are corresponding.
Claims (6)
1. a kind of hydraulic gyration power device, including housing assembly, the interior working cavities for being equipped with perforation left and right ends of housing assembly,
The working cavities of housing assembly are successively arranged cycloid hydraulic motor assembly, wet brake assembly, speed reducer assembly from left to right
And power output shaft, characterized in that the cycloid hydraulic motor assembly includes the logical food tray that housing assembly left end is arranged in, setting
Valve plate on the right side of logical food tray, the flow distributor on the right side of valve plate lead to food tray and are equipped with oil inlet and oil outlet, flow distributor
The interior internal gear and rotor cycloid gear being equipped with using cycloidal pin teeth engagement, is equipped in rotor cycloid gear and connect with its spline
Crowned spline output shaft, wet brake assembly includes brake spline gear, is abreast set in brake spline gear
On spring stop, brake piston and brake strip, internal splined hole, crowned spline output shaft are equipped in brake spline gear
Right end connect with the internal splined hole spline of brake spline gear, brake strip include fixation spaced apart in the axial direction
Friction plate and rotating friction plate form spline connection, fixed friction piece and work between rotating friction plate and brake spline gear
Make to form spline connection between inner cavity, tripping spring is equipped between brake piston and spring stop, to make brake piston tightly
Brake strip against right side, and fit-up gap is formed between spring stop and brake piston, short round is leaned in working cavities
It is equipped with annular slot at spring baffle, the hole retaining ring of the circular ring shape for the spring stop that reclines is equipped in annular slot, hole retaining ring is by 4
A cross section is spliced to form in the splicing ring segment of rectangle, and splicing ring segment side is equipped with rotation hole, and splicing ring segment is in setting rotation hole
The outside of one end is equipped with evacuation notch, and the splicing ring segment is put it into working cavities by an assembly device, the assembly dress
It sets including magnetic attraction sleeve and the propeller shaft sleeve being rotatably arranged in magnetic attraction sleeve, is rotationally equipped in magnetic attraction sleeve end face
4 positioning pins being adapted to rotation hole, 4 positioning pins are uniformly distributed in circumferencial direction, and positioning pin is equipped with torsional spring, propeller shaft sleeve
End sides are equipped with 4 in the equally distributed driving inclined-plane of circumferencial direction, when needing pilot hole retaining ring, first by 4 splicing rings
The rotation hole of Duan Yiduan is sequentially sleeved on the corresponding positioning pin in magnetic attraction sleeve end face, is spliced ring segment at this time and is attracted to magnetic set
On cylinder end face, and the other end for splicing ring segment deflects inward an initial angle, and the corresponding driving inclined-plane of the propeller shaft sleeve that reclines；
Then magnetic attraction sleeve is protruded into working cavities, the splicing ring segment of magnetic attraction sleeve end reclines spring stop；Then rotate driving
4 driving inclined-planes of axle sleeve, propeller shaft sleeve drive corresponding splicing ring segment to swing out, until adjacent two splice ring segment
End face is bonded to each other to form Mosaic face, and 4 splicing ring segments at this time are spliced to form hole retaining ring of the detent into annular slot, bullet
Spring baffle is equipped with the positioning column fitted in the retaining ring of hole by the end face of adjacent pores retaining ring, when spring stop overcomes tripping spring
Elastic force and recline brake piston when, positioning column exit aperture retaining ring, splicing ring segment at this time is radially movable and exits annular
Card slot, for the right end of brake spline gear integrally provided with connecting shaft, which passes through speed reducer assembly and power output shaft
It is connected, the right end that power output shaft stretches out housing assembly is equipped with the output gear that can be connected with action actuating mechanism.
2. a kind of hydraulic gyration power device according to claim 1, characterized in that the end face of brake piston is equipped with 2
A threaded mounting holes, spring stop are equipped with bolt assembly through-hole and corresponding counterbore in the position of corresponding threaded mounting holes, need
When wanting pilot hole retaining ring, it first is packed into assembly bolt in bolt assembly through-hole, and make to assemble bolt and threaded mounting holes screw thread
Connection, then successively tightens assembly bolt, spring stop can be made to be snug against brake piston, tripping spring at this time is pressed
Then contracting is put into working cavities with assembly device by ring segment is spliced, so that splicing ring segment is reclined spring stop, and be displaced outwardly spelling
Ring segment is connect, makes to splice ring segment detent into annular slot, to be spliced to form the hole retaining ring of circular ring shape.
3. a kind of hydraulic gyration power device according to claim 1, characterized in that the end face of adjacent two splicings ring segment
It is bonded to each other to form Mosaic face, the Mosaic face of hole retaining ring is uniformly distributed in circumferencial direction, the axis of Mosaic face offset bore retaining ring
Line, so that forming the medial surface of the end face for splicing ring segment side and splicing ring segment in one splices acute angle, splicing ring segment is another
The end face of side and the lateral surface of splicing ring segment form and splice acute angle outside one.
4. a kind of hydraulic gyration power device according to claim 1, characterized in that the outside of the housing assembly right end
Positioning spigot equipped with coaxial mounting flange and cylinder, the mounting flange is equipped with uniformly to be divided in circumferencial direction
At least 12 bolt holes of cloth have an eccentricity between the positioning spigot and power output shaft.
5. a kind of hydraulic gyration power device according to claim 1, characterized in that in logical food tray close to the side of valve plate
Face is equipped with the sliding annular groove of circular ring shape, and logical food tray is respectively equipped with inner seal ring slot and outer seal ring inside and outside sliding annular groove
Slot, the sliding annular groove is interior to be equipped with several balls, and the diameter of ball is greater than the depth of sliding annular groove, to make valve plate and lead to oil
Gap is formed between disk, is respectively equipped with sealing ring in the inside and outside closure gasket groove.
6. a kind of hydraulic gyration power device according to claim 5, characterized in that the sealing ring includes that setting exists
Including the O-ring seal of inside and outside closure gasket groove bottom, and setting, the fluoroplastic seal ring in outer seal ring channel opening portion.
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| CN201710510734.8A CN107420511B (en) | 2017-06-28 | 2017-06-28 | A kind of hydraulic gyration power device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510734.8A CN107420511B (en) | 2017-06-28 | 2017-06-28 | A kind of hydraulic gyration power device |
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| CN107420511A CN107420511A (en) | 2017-12-01 |
| CN107420511B true CN107420511B (en) | 2019-05-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989929A (en) * | 2017-12-12 | 2018-05-04 | 镇江大力液压马达股份有限公司 | A kind of hydraulic brake system |
| CN107893791A (en) * | 2017-12-14 | 2018-04-10 | 浙江腾荣环保科技有限公司 | A kind of hydraulic driven turntable |
| CN109404448B (en) * | 2018-12-14 | 2023-12-22 | 温州市东启汽车零部件制造有限公司 | Double-clearance-adjusting brake caliper with parking mechanism |
| CN109538663B (en) * | 2019-01-08 | 2023-10-13 | 南京创捷和信汽车零部件有限公司 | Normally closed wet brake |
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| JPH11325062A (en) * | 1998-05-19 | 1999-11-26 | Koyo Seiko Co Ltd | Bearing device |
| CN201474844U (en) * | 2009-08-20 | 2010-05-19 | 张玲 | Slewing hydraulic motor speed reducer assembly |
| CN102162478A (en) * | 2011-03-25 | 2011-08-24 | 胡世璇 | Concealed cycloid motor integrated with brake, valve bank and hydraulic motor |
| CN102562821A (en) * | 2012-02-29 | 2012-07-11 | 杨丽萍 | Split combined retainer ring used on inner side of bearing outer ring |
| JP2014114573A (en) * | 2012-12-07 | 2014-06-26 | Komatsu Ltd | Swiveling device of work vehicle |
| EP3115235A1 (en) * | 2015-07-04 | 2017-01-11 | MAN Truck & Bus AG | Method for adjusting an axle of a motor vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11325062A (en) * | 1998-05-19 | 1999-11-26 | Koyo Seiko Co Ltd | Bearing device |
| CN201474844U (en) * | 2009-08-20 | 2010-05-19 | 张玲 | Slewing hydraulic motor speed reducer assembly |
| CN102162478A (en) * | 2011-03-25 | 2011-08-24 | 胡世璇 | Concealed cycloid motor integrated with brake, valve bank and hydraulic motor |
| CN102562821A (en) * | 2012-02-29 | 2012-07-11 | 杨丽萍 | Split combined retainer ring used on inner side of bearing outer ring |
| JP2014114573A (en) * | 2012-12-07 | 2014-06-26 | Komatsu Ltd | Swiveling device of work vehicle |
| EP3115235A1 (en) * | 2015-07-04 | 2017-01-11 | MAN Truck & Bus AG | Method for adjusting an axle of a motor vehicle |
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