CN107420461A - A kind of wet brake and assembly method - Google Patents
A kind of wet brake and assembly method Download PDFInfo
- Publication number
- CN107420461A CN107420461A CN201710510145.XA CN201710510145A CN107420461A CN 107420461 A CN107420461 A CN 107420461A CN 201710510145 A CN201710510145 A CN 201710510145A CN 107420461 A CN107420461 A CN 107420461A
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- China
- Prior art keywords
- ring
- splicing
- brake
- spring
- hole
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
- F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
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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
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D2055/0004—Parts or details of disc brakes
- F16D2055/0041—Resilient elements interposed directly between the actuating member and the brake support, e.g. anti-rattle springs
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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
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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
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0084—Assembly or disassembly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of wet brake and assembly method, brake includes brake casing, brake piston, one end of brake piston reclines brake strip, the other end is provided with spring stop, tripping spring is provided between spring stop and brake piston, annular slot is provided with working cavities, the hole back-up ring being spliced to form by 34 splicing ring segments is provided with annular slot, tripping spring makes spring stop one end recline hole back-up ring, fit-up gap is formed between the spring stop other end and brake piston, the locating dowel being now arranged on spring stop end face is fitted in the back-up ring of hole, so that hole is positioned in annular slot with back-up ring；When spring stop reclines brake piston, locating dowel exit aperture back-up ring, splicing ring segment is radially movable and exits annular slot.The present invention can significantly increase the compression strength of brake endoporus back-up ring, and greatly facilitate the installation of hole back-up ring, and then be advantageous to improve the service life of brake.
Description
Technical field
The present invention relates to brake technical field, more particularly, to a kind of wet brake and assembly method.
Background technology
Wet multi-disc brake is a kind of hydraulic brake common at present, is commonly divided into closed type or open type,
As Figure of description 1 is illustrated that a kind of wet multi-disc brake of existing closed type, it is included with working cavities 11
Brake casing 1, brake spline gear 13, brake piston 2, brake strip 3, tripping spring 5, spring stop 4, hole gear
Circle 6 etc..Brake strip is by some fixed friction pieces 31 and rotating friction plate 32 is interlaced is arranged to make up, 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 is connected, and rotating friction plate is connected 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 produce frictional force, brake is in on-position, braking now
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 to be relatively fixed friction plate together and freely rotate, and brake spline gear then can relative brake device
Housing freely rotates.Brake piston makes rotating friction plate and fixed friction piece be held snugly against one under the driving of tripping spring
Rise, so that brake is in on-position.When needing work, hydraulic system inputs liquid into the inflow pipeline of brake casing
Force feed, so as to drive brake piston to move backward, you can the preload pressure between rotating friction plate and fixed friction piece is removed, this
When fixed friction piece and rotating friction plate be separated from each other, brake is switched to working condition by on-position.
However, there is following defect in existing closed type wet multi-disc brake：It is high when brake enters on-position
The hydraulic oil of pressure can be entered by the inflow pipeline on brake casing the working cavities of brake casing and brake piston it
Between, it is resisted against so as to drive brake piston to move backward on spring stop, and spring stop is then by hole back-up ring in axial direction
Upper positioning.That is, hole back-up ring now can bear high pressure.In order to ensure the steady operation of brake, generally
In the case of, people can set corresponding pressure maintaining valve in the hydraulic system for braking, to be used in the hydraulic oil pressure of braking
Power controls the level in 5MPa or so, avoids hole back-up ring from being damaged because of too high pressure.Due to hole with back-up ring be by elasticity
Deformation is installed in the installation annular groove in arrester shell body, and therefore, the cross sectional dimensions of hole back-up ring can be by larger limit
System, so that hole is extremely limited with the compression strength and corresponding service life of back-up ring itself.In addition, used by hole
The limitation of back-up ring elastic deformation amount, arrester shell body is interior can be by larger to the depth of the annular slot of mounting hole back-up ring
Limitation, so as to further limiting holes back-up ring axial bearing capacity, particularly, when user because of carelessness neglected loading pressure maintaining valve,
Or during pressure maintaining valve failure, the hydraulic fluid pressure of braking can rise very rapidly up to 15-35MPa or so, and hole back-up ring is born
Pressure can also exceed its specified pressure-bearing scope, so as to cause the damage of hole back-up ring.It is understood that work as us suitably
When increasing the cross sectional dimensions of hole back-up ring, the power required for its elastic deformation can be greatly increased, so as to increase hole back-up ring
Installation difficulty.
The content of the invention
The invention aims to solve the back-up ring installation difficulty of the hole present in existing wet brake, Yi Jikong
With the problem of back-up ring compression strength is low, service life is short, there is provided a kind of wet brake and assembly method, system can be significantly increased
The compression strength of dynamic device endoporus back-up ring, and greatly facilitate the installation of hole back-up ring, and then be advantageous to improve making for brake
Use the life-span.
To achieve these goals, the present invention uses following technical scheme：
A kind of wet brake, including the brake casing with working cavities, the brake piston that is arranged in working cavities and
Brake strip, one end of brake piston recline brake strip, and the other end of brake piston is provided with spring stop, in spring catch
Tripping spring is provided between plate and brake piston, annular slot, the annular snap are provided with spring stop in working cavities
The hole back-up ring of annular is provided with groove, the hole is spliced to form with back-up ring by the rectangular splicing ring segment in 3-4 cross section, institute
State spring stop and be provided with locating dowel close to the end face of splicing ring segment, the brake piston is provided with close to the end face of spring stop
Spring retention hole, tripping spring are located in the spring retention hole, and tripping spring makes spring stop one end recline hole back-up ring, bullet
Fit-up gap is formed between the spring baffle plate other end and brake piston, reclines on the inside of splicing ring segment now and determines on spring stop
On the outside of the post of position, so that splicing ring segment is positioned in annular slot；When spring stop overcome the elastic force of tripping spring and the system of reclining
During piston, the locating dowel exits the hole back-up ring being spliced into by splicing ring segment, splicing ring segment now it is radially movable and
Exit annular slot.
Unlike prior art, hole of the invention is splicing structure with back-up ring, and it is by 3-4 substantially in fan annular
Splicing ring segment be spliced to form, so as to facilitate its load working cavities annular slot in.That is, the hole gear of the present invention
Circle by elastic deformation without can be easily loaded into annular slot, therefore, can be arranged as required to its thickness equidimension with
And corresponding Technology for Heating Processing, and correspondingly increase the depth of annular slot, so as to significantly increase hole back-up ring itself
Mechanical strength and in annular slot after axial bearing capacity, effectively improve the service life of wet brake,
Avoid because of neglected loading pressure maintaining valve during use and produced problem.Particularly, when spring stop overcomes the elastic force of tripping spring and
Recline brake piston when, locating dowel can exit the hole back-up ring being spliced into by splicing ring segment.Therefore, we both can easily make spelling
Connect ring segment to move radially and exit annular slot, also splicing ring segment is moved radially and is caught in annular slot, so
Release spring baffle plate afterwards, you can make the locating dowel of spring stop end enter the endoporus for the hole back-up ring being spliced into by splicing ring segment
In, hole is reliably positioned at back-up ring in annular slot.
Preferably, the quantity of the splicing ring segment is 4, the end face of adjacent two splicings ring segment is bonded to each other to form spelling
Junction, hole are uniformly distributed with 4 Mosaic faces of back-up ring in circumferencial direction, the axis of Mosaic face offset bore back-up ring, the splicing
Face and hole are with the ratio between the distance between back-up ring axis S and the internal diameter D of hole back-up ring between 1/2 to 2/5.
As the habitual thinking of those skilled in the art, when needing the hole of an annular splitting into 4 with back-up ring
When splicing ring segment, each fan annular spliced ring segment and standard can be made, corresponding central angle is 90 degree.So, for the ease of
Splice ring segment to enter in annular slot, each arc length for splicing ring segment needs to shorten than standard arc length, that is to say, that when 4 spellings
When connecing ring segment hole back-up ring is spliced to form in annular slot, one must be occurred between the end faces of adjacent two splicing ring degree
Individual gap, otherwise, last splicing ring segment will be unable to be put into annular slot.And two end faces of the splicing ring segment of the present invention
At a tilt angle, and the incline direction for splicing the end face at ring segment both ends is consistent for the axis of offset bore back-up ring and shape.Cause
This, we can be such that one end of 4 splicing ring segments is introduced into annular slot, then swing splicing ring segment successively, make splicing ring segment
The other end sequentially enter in annular slot, and then it is sliceable go out a hole back-up ring very close to each other, be advantageous to improve hole use
The intensity of back-up ring, avoid splicing the relative displacement between ring segment in use.
Preferably, the height of the locating dowel is less than or equal to fit-up gap.That is, the axial movement of spring stop
Distance be more than locating dowel height, so, when spring stop overcome the elastic force of tripping spring and recline brake piston when, spring catch
The locating dowel of plate end can exit aperture back-up ring completely, so that it is guaranteed that splicing ring segment can easily remove annular slot or into ring
In shape neck.
Preferably, the splicing ring segment is made of 42CrMo；The ball hardness number of the splicing ring segment is in 270-310
Between.
By reasonably selecting to splice the material of ring segment and corresponding Technology for Heating Processing, splicing ring segment can be significantly lifted
Bearing strength.
A kind of assembly method of wet brake, comprises the following steps：
A. brake strip is set on the brake spline gear with external splines, the brake strip is included in axial direction
Upper spaced apart fixed friction piece and rotating friction plate, then loading brake spline gear and brake strip has
In the working cavities of the brake casing of internal spline, now the rotating friction plate with internal splined hole and brake spline gear it
Between formed spline connection, have external splines fixed friction piece and working cavities between formed spline connection；
B. toward the brake piston for loading cylindrical shape in working cavities, the inner of brake piston is made against brake strip, and making
Tripping spring is placed in the spring retention hole of the outer face of piston；
C. the spring stop of annular is loaded in working cavities, the inner face of spring stop reclines tripping spring, bullet now
There is larger gap between spring baffle plate inner face and brake piston；
D. spring stop is compressed axially, the inner face of spring stop is reclined brake piston, tripping spring now is compressed；
E. the 3-4 annular splicing ring segment of fan is put into working cavities with an assembling device, splicing ring segment is reclined spring
Baffle plate, then it is displaced outwardly splicing ring segment, makes the screens of splicing ring segment into the annular slot of working cavities, so as to be spliced to form circle
The hole back-up ring of annular；
F. release spring baffle plate, tripping spring driving spring baffle plate movement, makes the end face of spring stop recline hole back-up ring, this
When spring stop inner face and brake piston between separate and form fit-up gap, cylindrical on spring stop end face is determined
In the endoporus of position post access aperture back-up ring, so that on the outside of the locating dowel that respectively reclined on the inside of splicing ring segment, splicing ring segment positions
In annular slot
It should be noted that the assembly method of described in the invention and restriction wet brake is primarily directed to the hole after improvement
With the assembly method of back-up ring.Essential distinction with prior art is, after hole is split into splicing ring segment with back-up ring when of the invention
It is embedded into annular slot, therefore, can not be limited by hole with the size of back-up ring own dimensions and the depth of annular slot,
So as to be advantageous to need the size of reasonable design hole back-up ring and the size of annular slot according to working condition, so as to really
Protect the axial bearing capacity of hole back-up ring.
Preferably, the end face of the brake piston is provided with 2 threaded mounting holes, the spring stop is in corresponding screw thread
The position of pilot hole is provided with bolt hole and corresponding counterbore, and in step d, we can load assembling spiral shell in bolt hole
Bolt, and assembling bolt is threadedly coupled with threaded mounting holes, assembling bolt is then tightened successively, you can compression brake spring, and
Spring stop is set to be snug against brake piston；In step f, assembling bolt is unscrewed, you can release spring baffle plate.
In the prior art, people are more that mounting hole is used by way of applying an extruding force on spring stop
Back-up ring, tripping spring now is partially compressed and forms a pre-pressing force.Because the elastic force of tripping spring is larger, because
This, extrusion spring baffle plate is cumbersome, particularly, also needs to hole being embedded into annular with back-up ring while extrusion spring baffle plate
In neck, therefore, whole assembling process can be extremely difficult.The present invention is threaded pilot hole on the end face of brake piston, from
And spring stop is reclined brake piston by tightening assembling bolt, and it is both laborsaving, again can be to the extruding of spring stop
Process steadily controls, and then can be easily loaded into hole in annular slot with back-up ring, then unscrews assembling bolt, you can release bullet
Spring baffle plate, tripping spring can driving spring baffle plate tightly against hole back-up ring.
Preferably, the cross section of the splicing ring segment is rectangle, the quantity for splicing ring segment is 4, adjacent two splicings
The end face of ring segment is bonded to each other to form Mosaic face, and hole is uniformly distributed with 4 Mosaic faces of back-up ring in circumferencial direction, and Mosaic face deviates
The axis of hole back-up ring, so that the medial surface of the end face of splicing ring segment side and splicing ring segment forms in one and splices acute angle,
Splice the end face of ring segment opposite side and the lateral surface of splicing ring segment forms splicing acute angle outside one, splicing ring segment is close to outer splicing
Rotation hole is provided with acute angle, the outside that splicing ring segment splices acute angle one end outside is provided with avoidance otch, and the assembling device includes
Magnetic attraction sleeve and the propeller shaft sleeve being rotatably arranged in magnetic attraction sleeve, be rotationally provided with magnetic attraction sleeve end face 4 with
The alignment pin of rotation hole adaptation, 4 alignment pins are uniformly distributed in circumferencial direction, and alignment pin is provided with torsion spring, propeller shaft sleeve end
Side is provided with 4 in the equally distributed driving inclined-plane of circumferencial direction, in step e, by the rotation holes of 4 splicing ring segments successively first
It is set in corresponding to magnetic attraction sleeve end face on alignment pin, now splices ring segment and be attracted on magnetic attraction sleeve end face, and splices ring
Interior splicing acute angle one end of section deflects inward an initial angle, and the driving inclined-plane corresponding to propeller shaft sleeve that reclines；Then by magnetic
Inhale sleeve to stretch into working cavities, the splicing ring segment of magnetic attraction sleeve end reclines spring stop；Then propeller shaft sleeve is rotated, is driven
4 driving inclined-planes of axle sleeve are that the interior splicing acute angle one end for driving corresponding splicing ring segment is swung out, until adjacent two spellings
The end face for connecing ring segment is bonded to each other to form Mosaic face, and 4 now splice the hole that ring segments are spliced to form in screens to annular slot
Use back-up ring.
The assembling device that the present invention is used for pilot hole back-up ring includes the magnetic attraction sleeve in outside and the propeller shaft sleeve of inner side, this
Sample is when the rotation hole set for splicing ring segment is set on the alignment pin of magnetic attraction sleeve by we, you can makes the absorption of splicing ring segment in magnetic
The end of sleeve, and alignment pin can be made into polygon, or a flat gesture is milled out on the alignment pin of cylinder, so that splicing
Ring segment can be positioned effectively on alignment pin.And the torsion spring on alignment pin then can be biased inwardly interior splicing acute angle one end of splicing ring segment
Turn an initial angle, and the driving inclined-plane corresponding to propeller shaft sleeve that reclines, that is to say, that the now end of adjacent two splicings ring segment
It is separated between face.Then pivotable drive axle sleeve, now the driving inclined-plane of propeller shaft sleeve 4 splicing ring segments can be made synchronous
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 segment splicings now
The hole back-up ring in screens to annular slot is formed, then can extract assembling device out, splicing ring segment now and magnetic attraction sleeve
Separation, so as to realize the quick convenient installation of hole back-up ring.It is understood that because splicing ring segment splices acute angle one end outside
Outside be provided with and avoid otch, therefore, when splicing ring segment and being in one initial angle position of deflection, it is whole splice ring segment can position
In in the working cavities of brake casing；When by propeller shaft sleeve swinging out progressively splicing ring segment, splicing ring segment can be by
Stepping enters in annular slot.
Therefore, the present invention has the advantages that：The compression strength of brake endoporus back-up ring can be significantly increased, and
Greatly facilitate the installation of hole back-up ring, and then be advantageous to improve the service life of brake.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the enlarged drawing at G in Fig. 1.
Fig. 3 is a kind of structural representation of hole back-up ring of the present invention.
Fig. 4 is that the hole of the present invention is in a kind of structural representation of contraction state with back-up ring.
Fig. 5 is the structural representation when hole in Fig. 4 is outwardly opened with back-up ring.
Fig. 6 is that the hole in Fig. 4 outwardly opens structural representation when in place with back-up ring.
Fig. 7 is a kind of structural representation of the assembling device of the present invention.
Fig. 8 is a kind of structural representation of existing normally closed wet multi-disc brake.
In figure：1st, brake casing 11, working cavities 12, annular slot 13, brake spline gear 2, braking are lived
Plug 21, spring retention hole 22, threaded mounting holes 3, brake strip 31, fixed friction piece 32, rotating friction plate 4, bullet
Spring baffle plate 41, locating dowel 42, bolt hole 5, tripping spring 6, hole back-up ring 61, splicing ring segment 611, interior splicing acute angle
612nd, outer splicing acute angle 613, rotation hole 614, avoidance otch 7, magnetic attraction sleeve 71, alignment pin 8, propeller shaft sleeve 81, drive
Dynamic inclined-plane.
Embodiment
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment 1：As shown in Figure 1, Figure 2, Figure 3 shows, a kind of wet brake, the present embodiment are a kind of wet type system of normally closed type
Dynamic device, it includes the brake casing 1 with working cavities 11, the brake piston 2 being arranged in working cavities and drag friction
Piece 3, the substantially stepped cylinder of working cavities therein, and brake strip then rubs including spaced some fixations
Pad 31 and rotating friction plate 32.The right-hand member of brake piston reclines brake strip, and the left end of brake piston sets spring stop
4, tripping spring 5 is set between spring stop and brake piston, annular slot is set at spring stop in working cavities
12, the interior hole back-up ring 6 for setting annular of annular slot, so as to spacing to spring stop in the axial direction, tripping spring is by bullet
The compression of spring baffle plate and produce a preload pressure, so as to drive brake piston tightly against brake strip, make wet type system
Dynamic device is in on-position.
Unlike prior art, hole back-up ring of the invention is spelled by the rectangular splicing ring segment 61 in 3-4 cross section
Connect composition, it is preferable that the quantity for splicing ring segment is 4, and spring stop is provided with cylinder close to the left end face of splicing ring segment
Locating dowel 41, the external diameter of the locating dowel is adapted with hole with the internal diameter D of back-up ring.And brake piston is close to the left side of spring stop
Spring retention hole 21 is set on end face, and tripping spring is located in spring retention hole, is on the one hand advantageous to the positioning of tripping spring, together
When be advantageous to increase tripping spring length, tripping spring is formed enough preload pressures.Tripping spring makes spring stop
Left end is held snugly against hole back-up ring, and a fit-up gap F is then formed between the right-hand member of spring stop and brake piston, makes bullet
Spring baffle plate can move to the right in the axial direction.Outside the locating dowel that the periphery on the inside of splicing ring segment now reclines on spring stop
The periphery of side, so that splicing ring segment is positioned in annular slot.We can make the height of locating dowel be less than or equal to assembling
Gap, it is preferable that the height of locating dowel is smaller 0.2-0.5mm than fit-up gap F, so that the axial movement distance of spring stop is big
In the height of locating dowel.So, when spring stop overcomes the elastic force of tripping spring recline brake piston when, spring stop end
Locating dowel can exit aperture back-up ring completely, splicing ring segment now is radially movable and exits annular slot or into annular snap
In groove, so as to easily assemble or remove hole back-up ring.
For the ease of will splicing ring segment load annular slot in, and ensure hole back-up ring it is adjacent two splicing ring segment between
It is very close to each other, that is to say, that to be fit together between the end face of adjacent two splicings ring segment, we can make the end face of splicing ring segment
The axis of offset bore back-up ring, that is to say, that splicing has a distance S between the end face of ring segment and the axis of hole back-up ring,
And the ratio between distance S and the internal diameter D of hole back-up ring is between 1/2 to 2/5, so that the end face on the left of splicing ring segment
Medial surface with splicing ring segment, which is formed, splices acute angle 611 in one, splice the end face on the right side of ring segment and the lateral surface of splicing ring segment
Form splicing acute angle 612 outside one.It should be noted that because the medial surface and lateral surface of splicing ring segment are the face of cylinder, it is
Facilitate description, the intersection for splicing ring segment left end face and inner peripheral surface is referred to as A by us, will pass through intersection A and and inner periphery
The tangent tangential plane in face is referred to as B, and the intersection for splicing ring segment its right end face and outer circumference surface is referred to as into C, will pass through intersection C and with
The tangent tangential plane of outer circumference surface is referred to as E, and so, the interior splicing acute angle in the present embodiment refers to the left end face of splicing ring segment
With the angle between tangential plane B, and splice outside acute angle refer to splicing ring segment its right end face and tangential plane E between folder
Angle.
As shown in Fig. 4, Fig. 5, Fig. 6, in pilot hole back-up ring, we can make interior splicing acute angle one end of splicing ring segment to
Center side deflects and shunk, so that 4 splicing ring segments can be conveniently entered in working cavities.Then it is mobile laterally to spell
Ring segment is connect, outer splicing acute angle one end of splicing ring segment is introduced into annular slot, now swings out splicing ring segment, you can side
Just splicing ring segment is made to enter positioning in annular slot and be spliced to form hole back-up ring, and the end face of two adjacent splicing ring segments
Between be brought into close contact together and form Mosaic face, now hole is formed 4 and is uniformly distributed and deviates in circumferencial direction with back-up ring
The Mosaic face of hole back-up ring axis.
In addition, splicing ring segment can be preferably made of 42CrMo, and splice ring segment and can be made by modifier treatment technique
Its ball hardness number is controlled between 270-310, so as to which significantly the bearing strength of ring segment is spliced in lifting.
Embodiment 2：As shown in figure 1, a kind of assembly method of wet brake, it is applied to described by embodiment 1
Wet brake, specifically comprise the following steps：
A. brake strip is set on the brake spline gear 13 with external splines, outside the brake spline gear
Side has external splines, and internal splined hole can be set in the inner side of brake spline gear, so that the power transmission shaft with passing power is connected
Connect.With prior art analogously, the brake strip includes some fixed friction pieces spaced apart in the axial direction and rotation
Friction plate, rotating friction plate set internal splined hole, connect so that forming spline between rotating friction plate and brake spline gear
Connect, to transmit moment of torsion.It is a kind of so as to be formed between brake spline gear and fixed friction piece has a round endoporus
Rotation connection relation.In addition, the outside of fixed friction piece sets external splines, then the brake for being arranged with brake strip is spent
Key teeth wheel is fitted into the working cavities of brake casing cylinder.Certainly, internal spline should be set in working cavities, so as to outer
Spline connection is formed between the fixed friction piece and working cavities of spline；
B. toward the brake piston for loading cylindrical shape in working cavities, the inner on the right side of brake piston is made against brake strip, and
Tripping spring is placed in the spring retention hole of the outer face in the left side of brake piston.It is, of course, preferable to ground, we can live in braking
3 are set on the outer face in the left side of plug in the equally distributed spring retention hole of circumferencial direction.Such 3 tripping springs can be formed
Stable elastic force；
C. the spring stop of annular is loaded in working cavities, the inner face on the right side of spring stop reclines tripping spring, this
When spring stop inner face and brake piston between there is larger gap；
D. spring stop is compressed axially, the inner face of spring stop is reclined brake piston, tripping spring now is compressed.
In order to facilitate assembling, we can be symmetrically arranged 2 threaded mounting holes 22 on the end face of brake piston, and spring stop is right
Answer the position of threaded mounting holes that bolt hole 42 and corresponding counterbore are set, then load in bolt hole on bolt head and have
There is the assembling bolt of interior hexagonal groove, and assembling bolt is threadedly coupled with threaded mounting holes by inner hexagon spanner.Then according to
It is secondary to tighten 2 assembling bolts, you can compression brake spring, and spring stop is snug against brake piston.Certain bolt hole
And counterbore should be located at the region within the endoporus of hole back-up ring, dismountable assembling bolt after the back-up ring of hole has been assembled to wait；
E. the 3-4 annular splicing ring segment of fan is put into working cavities with an assembling device, splicing ring segment is reclined spring
Baffle plate, then it is displaced outwardly splicing ring segment, makes the screens of splicing ring segment into the annular slot of working cavities, so as to be spliced to form circle
The hole back-up ring of annular.Preferably, the cross section for splicing ring segment is rectangle, and the quantity for splicing ring segment is 4, adjacent two splicings
The end face of ring segment is bonded to each other to form Mosaic face, equally distributed in circumferencial direction so as to form 4 on whole hole back-up ring
Mosaic face.Especially, the axis of offset bore back-up ring is answered in hole of the present invention with the Mosaic face of back-up ring, so that on the left of splicing ring segment
The medial surface of end face and splicing ring segment, which is formed in one, splices acute angle, splices the end face on the right side of ring segment and the lateral surface of splicing ring segment
Splicing acute angle outside one is formed, and one rotation hole 613 is set close to the right side of outer splicing acute angle in splicing ring segment.Namely
Say, splicing ring segment is not the fan annular of a standard.
In addition, as shown in fig. 7, the assembling device of the present invention includes a magnetic attraction sleeve 7 and is rotatably arranged in magnetic
Propeller shaft sleeve 8 in sleeve, 4 rotatable alignment pins 71 are set in magnetic attraction sleeve end face, the shape of the alignment pin should be with spelling
The rotation hole shape adaptation of ring segment is connect, and 4 alignment pins are uniformly distributed in circumferencial direction.The end that alignment pin and rotation hole coordinate
Portion can be made into positive multi-edge column-shaped, or the cylinder with flat gesture is made, so that splicing ring segment can be positioned on alignment pin, and
Mutually transmit moment of torsion.In addition, settable 4 of propeller shaft sleeve end sides in magnetic attraction sleeve are in the equally distributed drive of circumferencial direction
Inclined-plane 81 is moved, corresponding torsion spring can be set on alignment pin, to make alignment pin that there is an initial alignment angle.So, we
First the rotation hole of 4 splicing ring segments can be sequentially sleeved at corresponding to magnetic attraction sleeve end face on alignment pin, now splice ring segment quilt
Absorption is on magnetic attraction sleeve end face, and in the presence of torsion spring, the interior splicing acute angle one end for splicing ring segment deflects inward one initially
Angle, and the driving inclined-plane corresponding to propeller shaft sleeve that reclines, splicing ring segment now are in contraction state；Then magnetic attraction sleeve is stretched
Enter in working cavities, the splicing ring segment of magnetic attraction sleeve end reclines spring stop；Then propeller shaft sleeve, drive shaft are positively rotated
4 driving inclined-planes of set are that the interior splicing acute angle one end for driving corresponding splicing ring segment is swung out, until adjacent two splicings
The end face of ring segment is bonded to each other to form Mosaic face, and 4 now splice the hole use that ring segments are spliced to form in screens to annular slot
Back-up ring.Finally, we only need to outwards remove assembling device, make splicing ring segment overcome magnetic attraction to be separated with magnetic attraction sleeve, splice ring
Section can stably screens in annular slot.It should be noted that as shown in Fig. 4, Fig. 5, Fig. 6, it would be desirable in splicing ring
The outside that section has the right-hand member of outer splicing acute angle sets avoidance otch 614, to make on the right side of the splicing ring segment in contraction state
Outer splicing acute angle can be located at working cavities in, so as to be easily loaded into working cavities.And magnetic attraction sleeve then can be by permanent magnetic
Iron is made, or, can also splicing construction be made in magnetic attraction sleeve by us, and it includes a sleeve body, at the end of sleeve body
Portion sets one and circle body is adsorbed made of permanent magnet；
F. assembling bolt is unscrewed, so as to release spring baffle plate, tripping spring driving spring baffle plate moves, and makes the end of spring stop
Face is held snugly against hole back-up ring, and a fit-up gap is formed between spring stop inner face and brake piston now.Certainly,
Let us can also be set on the end face of spring stop and the cylindrical locating dowel of the endoporus of hole back-up ring adaptation, and locating dowel
Height be less than fit-up gap.So, when spring stop reclines brake piston, the end face of locating dowel can be less than annular slot
Medial surface, so that splicing ring segment can be conveniently entered in annular slot；When unscrewing assembling bolt, locating dowel can then enter
In the endoporus of hole back-up ring, so that on the outside of the locating dowel that respectively reclined on the inside of splicing ring segment, splicing ring segment is positioned at annular snap
In groove.
It should be noted that after the assembly method of described in the invention and restriction wet brake is primarily directed to improvement
Hole back-up ring assembly method.Essential distinction with prior art is, hole is split into splicing ring with back-up ring when of the invention
It is embedded into after section in annular slot, therefore, can not be by the size of hole back-up ring own dimensions and the depth of annular slot
Limitation, so as to be advantageous to need the size of reasonable design hole back-up ring and the size of annular slot according to working condition,
So that it is guaranteed that the axial bearing capacity of hole back-up ring.Therefore, not to the existing dress of some in wet brake in the present embodiment
Structure with a kind of existing wet brake of program and such as brake strip is further described.
Claims (8)
1. a kind of wet brake, including the brake casing with working cavities, the brake piston that is arranged in working cavities
And brake strip, one end of brake piston recline brake strip, the other end of brake piston is provided with spring stop, in spring
Tripping spring is provided between baffle plate and brake piston, it is characterized in that, annular slot is provided with spring stop in working cavities,
The hole back-up ring of annular is provided with the annular slot, the hole back-up ring is by the rectangular splicing ring segment in 3-4 cross section
It is spliced to form, the spring stop is provided with locating dowel close to the end face of splicing ring segment, and the brake piston is close to spring stop
End face be provided with spring retention hole, tripping spring is located in the spring retention hole, tripping spring make spring stop one end paste
By hole back-up ring, fit-up gap is formed between the spring stop other end and brake piston, is reclined on the inside of splicing ring segment now
On the outside of locating dowel on spring stop, so that splicing ring segment is positioned in annular slot；When spring stop overcomes tripping spring
Elastic force and recline brake piston when, the locating dowel exits the hole back-up ring being spliced into by splicing ring segment, splicing ring now
Section is radially movable and exits annular slot.
2. a kind of wet brake according to claim 1, it is characterized in that, the quantity of the splicing ring segment is 4, adjacent
The end face of two splicing ring segments is bonded to each other to form Mosaic face, and hole is uniformly distributed with 4 Mosaic faces of back-up ring in circumferencial direction, is spelled
The axis of junction offset bore back-up ring, the Mosaic face and hole with the internal diameter D of the distance between back-up ring axis S and hole back-up ring it
Between ratio between 1/2 to 2/5.
3. a kind of wet brake according to claim 1, it is characterized in that, the height of the locating dowel is less than or equal to assembling
Gap.
4. a kind of wet brake according to claim 1, it is characterized in that, the splicing ring segment is made of 42CrMo.
5. a kind of wet brake according to claim 1, it is characterized in that, the ball hardness number of the splicing ring segment exists
Between 270-310.
6. a kind of assembly method of wet brake, it is characterized in that, comprise the following steps：
A. brake strip is set on the brake spline gear with external splines, the brake strip is included in axial direction
Upper spaced apart fixed friction piece and rotating friction plate, then loading brake spline gear and brake strip has
In the working cavities of the brake casing of internal spline, now the rotating friction plate with internal splined hole and brake spline gear it
Between formed spline connection, have external splines fixed friction piece and working cavities between formed spline connection；
B. toward the brake piston for loading cylindrical shape in working cavities, the inner of brake piston is made against brake strip, and making
Tripping spring is placed in the spring retention hole of the outer face of piston；
C. the spring stop of annular is loaded in working cavities, the inner face of spring stop reclines tripping spring, bullet now
There is larger gap between spring baffle plate inner face and brake piston；
D. spring stop is compressed axially, the inner face of spring stop is reclined brake piston, tripping spring now is compressed；
E. the 3-4 annular splicing ring segment of fan is put into working cavities with an assembling device, splicing ring segment is reclined spring
Baffle plate, then it is displaced outwardly splicing ring segment, makes the screens of splicing ring segment into the annular slot of working cavities, so as to be spliced to form circle
The hole back-up ring of annular；
F. release spring baffle plate, tripping spring driving spring baffle plate movement, makes the end face of spring stop recline hole back-up ring, this
When spring stop inner face and brake piston between separate and form fit-up gap, cylindrical on spring stop end face is determined
In the endoporus of position post access aperture back-up ring, so that on the outside of the locating dowel that respectively reclined on the inside of splicing ring segment, splicing ring segment positions
In annular slot.
7. a kind of hole back-up ring installation method of wet brake according to claim 6, it is characterized in that, the braking is lived
The end face of plug is provided with 2 threaded mounting holes, the spring stop be provided with the position of corresponding threaded mounting holes bolt hole with
And corresponding counterbore, in step d, we can load assembling bolt in bolt hole, and make assembling bolt and Screw assembly
Hole is threadedly coupled, and then tightens assembling bolt successively, you can compression brake spring, and spring stop is snug against braking and live
Plug；In step f, assembling bolt is unscrewed, you can release spring baffle plate.
8. a kind of hole back-up ring installation method of wet brake according to claim 6, it is characterized in that, the splicing ring
The cross section of section is rectangle, and the quantity for splicing ring segment is 4, and the end face of adjacent two splicings ring segment is bonded to each other to form splicing
Face, hole are uniformly distributed with 4 Mosaic faces of back-up ring in circumferencial direction, the axis of Mosaic face offset bore back-up ring, so that splicing
The medial surface of the end face of ring segment side and splicing ring segment, which is formed in one, splices acute angle, splices end face and the splicing of ring segment opposite side
The lateral surface of ring segment forms splicing acute angle outside one, and splicing ring segment is being provided with rotation hole at outer splicing acute angle, is splicing ring segment
The outside for splicing acute angle one end outside is provided with avoidance otch, and the assembling device includes magnetic attraction sleeve and is rotatably arranged in magnetic
The propeller shaft sleeve in sleeve is inhaled, 4 alignment pins being adapted to rotation hole, 4 positioning are rotationally provided with magnetic attraction sleeve end face
Pin is uniformly distributed in circumferencial direction, and alignment pin is provided with torsion spring, and propeller shaft sleeve end sides are uniformly divided provided with 4 in circumferencial direction
The driving inclined-plane of cloth, in step e, it is fixed corresponding to magnetic attraction sleeve end face to be first sequentially sleeved at the rotation hole of 4 splicing ring segments
On the pin of position, now splice ring segment and be attracted on magnetic attraction sleeve end face, and the interior splicing acute angle one end for splicing ring segment deflects inward
One initial angle, and the driving inclined-plane corresponding to propeller shaft sleeve that reclines；Then magnetic attraction sleeve is stretched into working cavities, magnetic set
The splicing ring segment of cylinder end reclines spring stop；Then propeller shaft sleeve is rotated, 4 driving inclined-planes of propeller shaft sleeve, which drive, to be corresponded to
Interior splicing acute angle one end of splicing ring segment swing out, until the end faces of adjacent two splicing ring segments are bonded to each other to form splicing
Face, 4 now splice the hole back-up ring that ring segments are spliced to form in screens to annular slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510145.XA CN107420461B (en) | 2017-06-28 | 2017-06-28 | A kind of wet brake and assembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510145.XA CN107420461B (en) | 2017-06-28 | 2017-06-28 | A kind of wet brake and assembly method |
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| CN107420461A true CN107420461A (en) | 2017-12-01 |
| CN107420461B CN107420461B (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710510145.XA Active CN107420461B (en) | 2017-06-28 | 2017-06-28 | A kind of wet brake and assembly method |
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| CN (1) | CN107420461B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081104A (en) * | 2019-05-31 | 2019-08-02 | 杭州力龙液压有限公司 | Brake piston, brake and hydraulic motor |
| CN112555751A (en) * | 2020-12-11 | 2021-03-26 | 广东大粤新能源科技股份有限公司 | Adjustable solar street lamp structure |
| CN113894169A (en) * | 2021-09-30 | 2022-01-07 | 重庆建设工业(集团)有限责任公司 | Method for machining small-modulus slender external spline on thin-walled tube |
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| JPH07145827A (en) * | 1993-11-25 | 1995-06-06 | Yamakawa Ind Co Ltd | Wet multiple disc clutch or brake for automatic transmission |
| CN201269275Y (en) * | 2008-09-29 | 2009-07-08 | 泰安泰山福神齿轮箱有限责任公司 | Brake of planet speed reducer |
| CN103758895A (en) * | 2014-01-08 | 2014-04-30 | 索特传动设备有限公司 | Reducer brake and engineering machinery |
| CN104876302A (en) * | 2014-02-27 | 2015-09-02 | 杨伟正 | A baffle ring of a reverse osmosis filter element pipe fitting |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07145827A (en) * | 1993-11-25 | 1995-06-06 | Yamakawa Ind Co Ltd | Wet multiple disc clutch or brake for automatic transmission |
| CN201269275Y (en) * | 2008-09-29 | 2009-07-08 | 泰安泰山福神齿轮箱有限责任公司 | Brake of planet speed reducer |
| CN103758895A (en) * | 2014-01-08 | 2014-04-30 | 索特传动设备有限公司 | Reducer brake and engineering machinery |
| CN104876302A (en) * | 2014-02-27 | 2015-09-02 | 杨伟正 | A baffle ring of a reverse osmosis filter element pipe fitting |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081104A (en) * | 2019-05-31 | 2019-08-02 | 杭州力龙液压有限公司 | Brake piston, brake and hydraulic motor |
| CN112555751A (en) * | 2020-12-11 | 2021-03-26 | 广东大粤新能源科技股份有限公司 | Adjustable solar street lamp structure |
| CN113894169A (en) * | 2021-09-30 | 2022-01-07 | 重庆建设工业(集团)有限责任公司 | Method for machining small-modulus slender external spline on thin-walled tube |
| CN113894169B (en) * | 2021-09-30 | 2024-03-29 | 重庆建设工业(集团)有限责任公司 | Method for processing small-modulus long and thin external spline on thin-walled tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107420461B (en) | 2019-08-06 |
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