CN114810877A - Wet brake and wet brake drive axle using same - Google Patents
Wet brake and wet brake drive axle using same Download PDFInfo
- Publication number
- CN114810877A CN114810877A CN202210320369.5A CN202210320369A CN114810877A CN 114810877 A CN114810877 A CN 114810877A CN 202210320369 A CN202210320369 A CN 202210320369A CN 114810877 A CN114810877 A CN 114810877A
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- Prior art keywords
- brake piston
- brake
- service
- piston
- parking
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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
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/345—Parking lock mechanisms or brakes in the transmission using friction brakes, e.g. a band 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
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3483—Parking lock mechanisms or brakes in the transmission with hydraulic actuating means
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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
- 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
- F16D2121/06—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure for releasing a normally applied brake
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention discloses a wet brake.A parking brake piston with one end extending outwards and attached to the inner wall of a shell is inserted in a fixing plate, and the shell is provided with a stop brake piston oil inlet which pushes the parking brake piston to move to remove parking brake after pressure oil enters; a service brake piston with an axial outer side wall attached to the inner wall of the shell is attached to the side wall of one end, away from the parking brake piston, of the fixing plate, an oil inlet of the service brake piston is formed in the shell and used for pushing the service brake piston to move for service braking after pressure oil enters the shell, a spring return device is additionally arranged on the service brake piston, the service brake piston can return quickly after service braking is relieved, braking drag is avoided, and the heating value of braking is reduced; except the shell, other parts are rotation-type axisymmetric parts, so that the machining is simple, the machining precision is easy to guarantee, and the rotational inertia in the working engineering is reduced.
Description
Technical Field
The application relates to the technical field of brakes, in particular to a wet brake and a wet brake drive axle using the same.
Background
The forklift drive axle mostly adopts drum brake, and the drum brake is simple in structure and low in cost, but a brake shoe friction plate is easy to crack and ablate, the brake is stuck with mud, water, oil and the like and is difficult to remove, the stability of the brake is influenced, and the defects of small braking area, unstable generated braking force, poor heat dissipation and the like exist. The totally enclosed wet brake can prevent the invasion of other materials such as soil and the like, has stable brake performance, adopts a single brake piston propulsion structure, has uniform stress on a friction coupling part, does not need to adjust a gap, allows the sliding rotation to transmit torque, adopts an oil cooling and multi-disc structure, has good brake performance, and prolongs the service life of the brake. The integrated wet brake drive axle of driving and parking makes the structure of transaxle compacter, also for whole car miniaturization, compact design has made the basis, but current driving and parking integrated wet brake drive axle, the service brake piston does not have return means, causes the transaxle braking to drag, and the resistance of system increases, and transmission efficiency reduces, has influenced the application popularization of the integrated wet brake drive of driving and parking.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present application aims to provide a wet brake and a wet brake transaxle using the same, which solve the above-mentioned problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a wet brake comprises a brake assembly, wherein the brake assembly comprises a shell, the inner wall of the shell is fixedly connected with a fixing plate with a hole in the middle part, a parking brake piston with one end extending outwards and attached to the inner wall of the shell is inserted in the fixing plate, and a stop brake piston oil inlet for pushing the parking brake piston to move to release parking brake after pressure oil enters the shell is formed in the shell;
the service brake piston that the parking brake piston was kept away from to the fixed plate one end lateral wall laminating has the service brake piston of axial lateral wall laminating on shells inner wall, has seted up on the casing and has promoted the service brake piston oil inlet that the service brake piston removed and carry out service brake after pressure oil gets into, and the one end that the service brake piston kept away from the parking brake piston is equipped with the friction braking subassembly of pegging graft in the casing.
Furthermore, a parking return assembly which automatically returns after pressure oil is released is mounted on the parking brake piston.
Further, parking return subassembly includes that a plurality of circularizes the parking braking return spring who distributes, and the second mounting hole of placing parking braking return spring is seted up to the one end that parking braking piston outwards extended, offers the first mounting hole that matches with the second mounting hole on the inner wall of casing and the laminating of parking braking piston one end.
Furthermore, a service return assembly which automatically returns after pressure oil is released is mounted on the service brake piston.
Furthermore, the service return assembly comprises a plurality of third mounting holes which are formed in the side wall of the service brake piston and distributed in an annular mode, the service brake piston penetrates through the third mounting holes through the screws in the side wall of the fixing plate in a movable mode, and a service brake return spring which automatically resets after pressure oil is relieved is arranged on one section of the screw in the third mounting holes in a surrounding mode.
Furthermore, the friction brake assembly is formed by alternately installing a plurality of separating plates and friction plates.
Further, service brake piston and parking brake piston are the notch cuttype structure, inlay on the thick section lateral wall of parking brake piston and have first star type sealing washer, inlay on the thin section lateral wall and have second star type sealing washer, inlay on the thick section lateral wall of service brake piston and have fourth star type sealing washer, thin section lateral wall and inlay and have third star type sealing washer, and the lateral wall that service brake piston one end was kept away from to the fixed plate is inlayed and is had O type sealing washer.
Furthermore, coaxial through holes are formed in the middle of the service brake piston and the parking brake piston, and through holes are formed in the side wall of the service brake piston. The weight of the service brake piston is reduced, and the unilateral abrasion of a sealing element caused by the heavy weight of the service brake piston is reduced.
A wet brake transaxle, includes the axle housing, the both ends of axle housing are installed as aforesaid brake assembly.
Further, the other end fixed mounting of the casing on the stopper assembly has the spindle nose, it is equipped with wheel hub to rotate the cover through the bearing on the spindle nose, install the main reducer assembly in the axle housing, install the second semi-axis on the both ends output shaft of main reducer assembly, the other end of second semi-axis passes the axle housing and gets into the stopper assembly, the one end that the second semi-axis is located in the stopper assembly passes behind parking braking piston and the service braking piston through spline housing and sun gear coaxial coupling, install the planet carrier that is located the spindle nose on the sun gear, the other end of planet carrier is connected with first semi-axis, the other end of first semi-axis passes spindle nose and wheel hub fixed connection, the laminating of the one end lateral wall that service braking piston was kept away from to planet ring gear and friction braking subassembly on the planet carrier, the friction braking subassembly cover is established on the spline housing.
Compared with the prior art, the invention has the beneficial effects that:
1. the service brake piston is additionally provided with the spring return device, so that the service brake piston can return quickly after service brake is released, brake drag is avoided, and the heating value of brake is reduced;
2. the acting force of the parking brake piston return spring only acts on the parking brake piston and the shell, so that the stress condition of the fixing plate is simplified;
3. except the shell, other parts are rotation-type axisymmetric parts, so that the machining is simple, the machining precision is easy to guarantee, and the rotational inertia in the working engineering is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a brake assembly according to the present invention;
FIG. 2 is a schematic view of a drive axle assembly of the present invention;
FIG. 3 is a schematic perspective view of a friction plate according to the present invention;
FIG. 4 is a perspective view of a spacer according to the present invention;
FIG. 5 is a schematic perspective view of the spline housing of the present invention;
fig. 6 is a schematic perspective view of the housing of the present invention.
The reference numbers illustrate: the axle housing 1, the brake assembly 2, the shell 201, the first star-shaped sealing ring 202, the second star-shaped sealing ring 203, the third star-shaped sealing ring 204, the fourth star-shaped sealing ring 205, the service brake piston 206, the spacer 207, the friction plate 208, the screw 209, the service brake return spring 210, the fixing plate 211, the O-shaped sealing ring 212, the parking brake piston 213, the parking brake return spring 214, the first mounting hole 2011, the stop brake piston oil inlet 2012, the service brake piston oil inlet 2013, the second mounting hole 2021, the third mounting hole 2061, the through hole 2071, the spline housing 3, the sun gear 4, the planet carrier 5, the first half shaft 6, the wheel hub 7, the second half shaft 8, the main reducer assembly 9, the shaft head 10 and the planet gear ring 11.
Detailed Description
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and variations in various respects, all without departing from the spirit of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Referring to fig. 1-6, the present invention provides a technical solution:
the utility model provides a wet braking transaxle, as shown in fig. 2, including axle housing 1, stopper assembly 2 and spindle nose 10, the quantity of stopper assembly 2 and spindle nose 10 is two, the outer wall of stopper assembly 2 passes through bolt and axle housing 1 fixed connection, install main reducer assembly 9 in the axle housing 1, spindle nose 10 passes through bolt and stopper assembly 2's outer wall fixed connection, it is equipped with wheel hub 7 to rotate the cover through the bearing on the spindle nose 10, be equipped with one end in the spindle nose 10 and extend to the outer first semi-axis 6 with wheel hub 7 fixed connection of spindle nose 10, the other end of first semi-axis 6 is equipped with coaxial pivoted planet carrier 5 in proper order, sun gear 4 and second semi-axis 8, second semi-axis 8 passes stopper assembly 2 and main reducer assembly 9's output shaft, sun gear 4 and second semi-axis 8 realize coaxial coupling through spline housing 3.
The transaxle work, power is transmitted to final drive assembly 9 by the prime mover, is transmitted to second semi-axis 8 by final drive assembly 9 again, is transmitted to spline housing 3 by second semi-axis 8 again, is transmitted to sun gear 4 by spline housing 3 again, is transmitted to planet carrier 5 by sun gear 4, and the power of planet carrier 5 output further transmits to wheel hub 7 through first semi-axis 6, finally is transmitted power to the wheel by wheel hub 7, realizes final output.
Referring to fig. 1, the brake assembly 2 includes a housing 201, a fixing plate 211 having an opening at a middle portion is fixedly connected to an inner wall of the housing 201, a parking brake piston 213 having one end extending outward and attached to the inner wall of the housing 201 is inserted into the fixing plate 211, an oil inlet 2012 of the parking brake piston 213 for moving to release the parking brake is formed in the housing 201, support on the service brake piston 206 after pressure oil release parking brake piston 213 return, install the parking return subassembly of automatic return after pressure oil release on the parking brake piston 213, parking return subassembly includes the parking brake return spring 214 that a plurality of annular distributes, the second mounting hole 2021 of placing parking brake return spring 214 is seted up to the one end that parking brake piston 213 outwards extends, set up the first mounting hole 2011 with second mounting hole 2021 matching on the inner wall of casing 201 and parking brake piston 213 one end laminating.
A service brake piston 206 with an axial outer side wall attached to the inner wall of the housing 201 is attached to the side wall of one end of the fixing plate 211, which is far away from the parking brake piston 213, an oil inlet 2013 of the service brake piston is formed in the housing 201, the service brake piston 206 pushes the service brake piston 206 to move for service braking after pressure oil enters, a service return assembly which automatically returns after pressure oil is relieved is mounted on the service brake piston 206, the service return assembly comprises a plurality of third mounting holes 2061 which are annularly distributed on the side wall of the service brake piston 206, the service brake piston 206 is screwed into the side wall of the fixing plate 211 after passing through the third mounting holes 2061 through a screw 209, a service brake return spring 210 which automatically returns after pressure oil is relieved is encircled at a section of the screw 209, specifically, the screw 209 is stepped, and when the service brake return spring 210 is mounted and limited, and also plays a certain role in guiding the axial movement of the service brake piston 206. One end of the service brake piston 206 far away from the parking brake piston 213 is provided with a friction brake component sleeved on the spline housing 3, the side wall of one end of the friction brake component far away from the service brake piston 206 is jointed with the planet gear ring 11 on the planet carrier 5,
the friction brake assembly is formed by alternately installing a plurality of separating plates 207 and friction plates 208, specifically, the friction plate 208 is structured as shown in fig. 3, an inner ring of the friction plate 208 is provided with an internal spline, the spline housing 3 is structured as shown in fig. 5, an outer ring of the spline housing is provided with an external spline matched with the internal spline of the friction plate 208, the friction plate 208 is sleeved on the spline housing 3, the separating plates 207 are structured as shown in fig. 4 and installed in grooves formed in the inner wall of the housing 201, grooves of the housing 201 are structured as shown in fig. 6, when a running vehicle is braked, a service brake piston 206 pushes the friction plate 208 and the separating plates 207 to move, the friction plate 208 and the spline housing 3 rotate together and can move axially along the external spline of the spline housing 3, and the separating plates 207 are installed with the housing 201 and fixed circumferentially but can move axially in the corresponding grooves of the housing 201. The spacers 207 are designed with sets of thicknesses and measurements are calculated to select different thicknesses to adjust the consistency of travel of the service brake piston 206 in the initial state.
In addition, service brake piston 206 and parking brake piston 213 are the notch cuttype structure, and the displacement takes place for pressure oil promotion after getting into, inlay on the thick section lateral wall of parking brake piston 213 has first star type sealing washer 202, inlay on the thin section lateral wall has second star type sealing washer 203, inlay on the thick section lateral wall of service brake piston 206 has fourth star type sealing washer 205, inlay on the thin section lateral wall has third star type sealing washer 204, and the lateral wall that the one end was kept away from service brake piston 206 to fixed plate 211 is inlayed and is had O type sealing washer 212.
As a preferable example of this embodiment, the service brake piston 206 and the parking brake piston 213 are provided with through holes in the middle thereof, through which the second half shaft 8 passes, and the sidewall of the service brake piston 206 is provided with a through hole 2071, so as to reduce the weight of the service brake piston 206 and reduce the unilateral wear of the sealing member due to the heavy weight of the service brake piston 206.
When the vehicle normally runs, parking brake needs to be released, pressure oil enters a sealing cavity formed by the shell 201, the parking brake piston 213, the fixing plate 211, the first star-shaped sealing ring 202, the second star-shaped sealing ring 203 and the O-shaped sealing ring 212 through the parking brake piston oil inlet 2012, the parking brake piston 213 is pushed to move towards one side of the axle housing 1 after oil enters the sealing cavity until the end face of the parking brake piston 213 is contacted with the end face of the shell 201, and the parking brake return spring 214 compressed in the hole of the parking brake piston 213 is further compressed. After the parking brake is released, the power output by the prime motor can be transmitted to the wheels through the transmission parts to drive the vehicle to run. When the traveling crane needs to perform traveling crane braking, pressure oil enters a sealing cavity formed by the shell 201, the traveling crane braking piston 206, the third star-shaped sealing ring 204 and the fourth star-shaped sealing ring 205 through the traveling crane braking piston oil inlet 2013, and after the oil enters the sealing cavity, a plurality of groups of alternately arranged spacers 207 and friction plates 208 are pushed to axially move and finally press against the planetary gear ring 11 fixed on the shaft head 10 to generate braking force, so that the vehicle is decelerated or stopped. When the single-file vehicle is braked and relieved, pressure oil in the service brake piston oil inlet 2013 is relieved, the service brake pistons are pre-compressed and quickly return under the action of the elastic force of the service brake return springs 210 in the end face mounting holes 2061 of the service brake piston 206, the friction plates 208 and the spacer plates 207 are naturally separated under the action of centrifugal force, and abrasion of the friction plates caused by brake drag is avoided. When the vehicle is stopped stably and needs to be stopped, the pressure loss of the oil inlet 2012 of the brake piston is stopped through the operation of the on-off button of the control oil path of the whole vehicle, the parking brake piston 213 moves towards one side far away from the axle housing 1 under the action of the elastic force of the plurality of groups of parking brake return springs 214, the service brake piston 206 is further pushed to move, a plurality of groups of alternately arranged spacers 207 and friction plates 208 are pressed, and finally the service brake piston presses and fixes the planetary gear ring 11 on the axle head 10 to generate brake force. When the vehicle suddenly stops working, the system automatically loses pressure, and the parking brake can also play a role, so that the safety of the vehicle is ensured.
The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.
Claims (10)
1. A wet brake, characterized by: the parking brake device comprises a brake assembly (2), wherein the brake assembly (2) comprises a shell (201), the inner wall of the shell (201) is fixedly connected with a fixing plate (211) with a hole in the middle, a parking brake piston (213) with one end extending outwards and attached to the inner wall of the shell (201) is inserted in the fixing plate (211), and a parking brake piston oil inlet (2012) for pushing the parking brake piston (213) to move to release parking brake after pressure oil enters is formed in the shell (201);
the side wall of one end, far away from the parking brake piston (213), of the fixing plate (211) is attached with a service brake piston (206) with an axial outer side wall attached to the inner wall of the shell (201), a service brake piston oil inlet (2013) which pushes the service brake piston (206) to move for service braking after pressure oil enters is formed in the shell (201), and one end, far away from the parking brake piston (213), of the service brake piston (206) is provided with a friction brake assembly inserted into the shell (201).
2. A wet brake as claimed in claim 1, wherein: and a parking return assembly which automatically returns after pressure oil is released is arranged on the parking brake piston (213).
3. A wet brake as claimed in claim 2, wherein: parking return subassembly includes parking brake return spring (214) that a plurality of annularity distributes, and parking brake piston (213) outside one end of extending offers second mounting hole (2021) of placing parking brake return spring (214), offers first mounting hole (2011) with second mounting hole (2021) matching on the inner wall of casing (201) and parking brake piston (213) one end laminating.
4. A wet brake as claimed in claim 1, wherein: and a service return assembly which automatically returns after pressure oil is released is arranged on the service brake piston (206).
5. A wet brake as claimed in claim 4, wherein: the service return assembly comprises a plurality of third mounting holes (2061) which are formed in the side wall of the service brake piston (206) and distributed in an annular mode, the service brake piston (206) penetrates through the third mounting holes (2061) through a screw (209) in a movable mode and then is screwed into the side wall of the fixing plate (211), and a service brake return spring (210) which automatically resets after pressure oil is relieved is arranged around one section of the screw (209) in the third mounting holes (2061).
6. A wet brake as claimed in claim 1, wherein: the friction brake assembly is formed by alternately installing a plurality of separator plates (207) and friction plates (208).
7. A wet brake as claimed in claim 1, wherein: service brake piston (206) and parking brake piston (213) are the notch cuttype structure, it has first star type sealing washer (202) to inlay on the thick section lateral wall of parking brake piston (213), it has second star type sealing washer (203) to inlay on the thin section lateral wall, it has fourth star type sealing washer (205) to inlay on the thick section lateral wall of service brake piston (206), it has third star type sealing washer (204) to inlay on the thin section lateral wall, the lateral wall that service brake piston (206) one end was kept away from in fixed plate (211) is inlayed and is had O type sealing washer (212).
8. A wet brake as claimed in claim 6, wherein: coaxial through holes are formed in the middle of the service brake piston (206) and the parking brake piston (213), and a through hole (2071) is formed in the side wall of the service brake piston (206).
9. The utility model provides a wet braking transaxle, includes axle housing (1), its characterized in that: the brake assembly (2) as claimed in any one of claims 1 to 8 is mounted on both ends of the axle housing (1).
10. A wet brake transaxle of claim 9 wherein: the brake device is characterized in that a shaft head (10) is fixedly mounted at the other end of a shell (201) on a brake assembly (2), a wheel hub (7) is sleeved on the shaft head (10) through a bearing in a rotating mode, a main reducer assembly (9) is mounted in the axle housing (1), a second half shaft (8) is mounted on output shafts at two ends of the main reducer assembly (9), the other end of the second half shaft (8) penetrates through the axle housing (1) and enters the brake assembly (2), one end, located in the brake assembly (2), of the second half shaft (8) penetrates through a parking brake piston (213) and a service brake piston (206) and then is coaxially connected with a sun wheel (4) through a spline sleeve (3), a planet carrier (5) located in the shaft head (10) is mounted on the sun wheel (4), a first half shaft (6) is connected to the other end of the planet carrier (5), and the other end of the first half shaft (6) penetrates through the shaft (10) and is fixedly connected with the wheel hub (7), a planetary gear ring (11) on the planet carrier (5) is attached to the side wall of one end, far away from a service brake piston (206), of the friction brake assembly, and the friction brake assembly is sleeved on the spline sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210320369.5A CN114810877B (en) | 2022-03-29 | 2022-03-29 | Wet brake and wet brake drive axle using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210320369.5A CN114810877B (en) | 2022-03-29 | 2022-03-29 | Wet brake and wet brake drive axle using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114810877A true CN114810877A (en) | 2022-07-29 |
| CN114810877B CN114810877B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210320369.5A Active CN114810877B (en) | 2022-03-29 | 2022-03-29 | Wet brake and wet brake drive axle using same |
Country Status (1)
| Country | Link |
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| CN (1) | CN114810877B (en) |
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| JP2007120559A (en) * | 2005-10-26 | 2007-05-17 | Mitsubishi Heavy Ind Ltd | Wet brake for vehicle, and reduction gear and drive mechanism using the same |
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| CN107265354A (en) * | 2017-06-26 | 2017-10-20 | 安徽合力股份有限公司 | A kind of fork truck driving integrated wet-type braking driving axle of parking |
| CN207313042U (en) * | 2017-06-26 | 2018-05-04 | 安徽合力股份有限公司 | A kind of fork truck driving parking integrates wet-type braking driving axle |
| KR102243281B1 (en) * | 2019-11-20 | 2021-04-22 | 주식회사 가리언 | common breaking device for travelling working vehicle |
| CN214945911U (en) * | 2021-05-24 | 2021-11-30 | 山东云宇机械集团有限公司 | Wet type braking device of traveling and parking integrated braking half shaft |
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2022
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| HU0001056D0 (en) * | 2000-03-08 | 2000-05-28 | Spring force storing parking brake released with hidraulic or mechanical method combined with wet brake structure | |
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| CN107265354A (en) * | 2017-06-26 | 2017-10-20 | 安徽合力股份有限公司 | A kind of fork truck driving integrated wet-type braking driving axle of parking |
| CN207313042U (en) * | 2017-06-26 | 2018-05-04 | 安徽合力股份有限公司 | A kind of fork truck driving parking integrates wet-type braking driving axle |
| KR102243281B1 (en) * | 2019-11-20 | 2021-04-22 | 주식회사 가리언 | common breaking device for travelling working vehicle |
| CN214945911U (en) * | 2021-05-24 | 2021-11-30 | 山东云宇机械集团有限公司 | Wet type braking device of traveling and parking integrated braking half shaft |
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| Publication number | Publication date |
|---|---|
| CN114810877B (en) | 2023-07-28 |
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