CN114623174A - Wet brake with three braking functions - Google Patents

Wet brake with three braking functions Download PDF

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Publication number
CN114623174A
CN114623174A CN202210218483.7A CN202210218483A CN114623174A CN 114623174 A CN114623174 A CN 114623174A CN 202210218483 A CN202210218483 A CN 202210218483A CN 114623174 A CN114623174 A CN 114623174A
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CN
China
Prior art keywords
braking
piston
brake
friction plates
static friction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210218483.7A
Other languages
Chinese (zh)
Inventor
阮福忠
陈文滨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Longyan Wenwu Axle Manufacturing Co ltd
Original Assignee
Longyan Wenwu Axle Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Longyan Wenwu Axle Manufacturing Co ltd filed Critical Longyan Wenwu Axle Manufacturing Co ltd
Priority to CN202210218483.7A priority Critical patent/CN114623174A/en
Publication of CN114623174A publication Critical patent/CN114623174A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0971—Resilient means interposed between pads and supporting members or other brake parts transmitting brake actuation force, e.g. elements interposed between brake piston and pad
    • 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
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0972—Resilient means interposed between pads and supporting members or other brake parts transmitting brake reaction force, e.g. elements interposed between torque support plate and pad
    • 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
    • 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
    • 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
    • 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
    • F16H63/3491—Emergency release or engagement of parking locks or brakes
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The invention discloses a wet brake with three braking functions, which aims to solve the problems that when a parking spring is damaged in the existing wet brake, the parking function is easy to lose, especially when the ore transport vehicle travels in the working environment with steep slope of the mine, the invention adopts the technical scheme that one side of a brake assembly (6) is in contact with one end face of an emergency brake piston (7), the other side of the brake assembly (6) is in contact with one end faces of a parking brake piston (9) and a service brake piston (8) through a push plate (10), the service brake piston (8) is arranged in the parking brake piston (9), the other end face of the parking brake piston (9) is in contact with a left brake cylinder cover (1) through a plurality of brake springs, and the other end face of the emergency brake piston (7) is in contact with a right brake cylinder cover (5) through a plurality of brake springs.

Description

Wet brake with three braking functions
Technical Field
The invention relates to a brake, in particular to a wet brake with three braking functions, which consists of a plurality of dynamic friction plates, a plurality of static friction plates, a plurality of braking springs, a plurality of return springs, a left braking cylinder cover, a right braking cylinder cover, a braking piston, a braking shell, a left braking cylinder body and a right braking cylinder body.
Background
Chinese patent CN 214304966U discloses such a wet brake, which has the structural characteristics that: the brake device comprises a shell, a brake assembly, a traveling piston, a parking piston, a return spring and a parking spring; the shell comprises a shaft sleeve, a static shell and a movable shell, wherein the static shell and the movable shell are both sleeved on the shaft sleeve, the static shell is rotatably connected with the shaft sleeve, the movable shell is fixedly connected with the shaft sleeve, a first oil inlet channel and a second oil inlet channel are arranged in the static shell, the static shell is fixed on an automobile, and the shaft sleeve is sleeved on an automobile transmission shaft; the brake assembly comprises a static friction plate and a dynamic friction plate which are oppositely arranged, and the static friction plate and the dynamic friction plate are sleeved on the shaft sleeve and are in sliding connection with the shaft sleeve along the length direction of the shaft sleeve; a cavity communicated with the first oil inlet channel is formed between one side of the travelling crane piston and the static shell, and the other side of the travelling crane piston is abutted against the static friction plate through the return spring; one side of the parking piston is connected with the movable shell through the parking spring, the other side of the parking piston is abutted against the movable friction plate, and a cavity communicated with the second oil inlet channel is formed between the parking piston and the static shell. The driving piston and the parking piston are respectively positioned on two sides of the brake assembly, the driving piston is connected with the shell through a return spring, and the parking piston is connected with the shell through a parking spring. Therefore, when the parking spring is damaged, the parking function is easily lost, and especially when the ore transportation vehicle travels in the working environment with steep curves in the mine, potential safety hazards are easily caused.
Disclosure of Invention
The invention aims to provide a wet brake with a triple-brake function, which is not easy to cause the loss of a parking function when a parking spring is damaged and can ensure the safety.
In order to achieve the aim, the invention discloses a wet brake with three braking functions, which consists of a plurality of dynamic friction plates, a plurality of static friction plates, a plurality of braking springs, a plurality of return springs, a left braking cylinder cover, a right braking cylinder cover, a braking piston, a braking shell, a left braking cylinder body and a right braking cylinder body, wherein the braking pistons are respectively arranged at two sides of a braking component consisting of the dynamic friction plates and the static friction plates, the plurality of return springs are uniformly distributed in the braking shell between the two braking pistons, a tooth-shaped spline is arranged in an inner hole of the braking shell, a tooth-shaped spline is also arranged on the excircle of the static friction plate, the static friction plates are arranged on the tooth-shaped spline in the braking shell to form a whole, one end of the braking piston arranged in the left braking cylinder body and the right braking cylinder body is contacted with the dynamic friction plates or the static friction plates, one side of the braking component is contacted with one end surface of an emergency braking piston, the other side of the brake assembly is in contact with one end face of the parking brake piston and one end face of the service brake piston through the push plate, the service brake piston is arranged in the parking brake piston, the other end face of the parking brake piston is in contact with the left brake cylinder cover through a plurality of brake springs, and the other end face of the emergency brake piston is in contact with the right brake cylinder cover through a plurality of brake springs.
An annular groove capable of placing a service brake piston is formed in one end face of the parking brake piston, and an oil inlet and an oil outlet which can be communicated with the service brake piston are formed in the annular groove.
One end face of the service brake piston is connected with the push plate through a screw.
A wet brake with three braking functions is composed of multiple dynamic friction plates, multiple static friction plates, multiple braking springs, multiple restoring springs, left and right braking cylinder covers, braking pistons, braking casing, left and right braking cylinders, braking pistons at both sides of braking assembly composed of multiple dynamic friction plates and multiple static friction plates, multiple restoring springs uniformly distributed in the braking casing between two braking pistons, toothed spline in internal hole of braking casing, toothed spline on external circumference of static friction plate, static friction plates arranged on the toothed spline in braking casing for forming one body, and emergency braking piston and one end of driving braking piston, the other side of the brake assembly is in contact with one end face of the parking brake piston, the service brake piston is arranged in the emergency brake piston, the other end face of the parking brake piston is in contact with the left brake cylinder cover through a plurality of brake springs, and the other end face of the emergency brake piston is in contact with the right brake cylinder cover through a plurality of brake springs.
An annular groove capable of placing a service brake piston is formed in one end face of the emergency brake piston, and an oil inlet and an oil outlet which can be communicated with the service brake piston are formed in the annular groove.
A wet brake with three braking functions is composed of multiple dynamic friction plates, multiple static friction plates, multiple braking springs, multiple return springs, left and right braking cylinder covers, braking piston, braking casing, left and right braking cylinders, braking pistons at both sides of braking assembly composed of multiple dynamic friction plates and multiple static friction plates, multiple return springs uniformly distributed in the braking casing between two braking pistons, toothed spline in internal hole of braking casing, toothed spline on external circumference of static friction plate, static friction plates arranged on the toothed spline in braking casing for forming one body, braking pistons in left and right braking cylinders with one end in contact with dynamic or static friction plates, and emergency braking piston with one end in contact with one end of braking assembly, the other side of the brake assembly is in contact with one end face of the parking brake piston and one end face of the service brake piston through a push plate, the service brake piston is sleeved on the parking brake piston, the other end face of the parking brake piston is in contact with the left brake cylinder cover through a plurality of brake springs, and the other end face of the emergency brake piston is in contact with the right brake cylinder cover through a plurality of brake springs.
The parking brake piston is arranged to be T-shaped in axial section, so that the service brake piston is conveniently sleeved on the small head of the T-shaped parking brake piston.
A wet brake with three braking functions is composed of multiple dynamic friction plates, multiple static friction plates, multiple braking springs, multiple restoring springs, left and right braking cylinder covers, braking pistons, braking casing, left and right braking cylinders, braking pistons at both sides of braking assembly composed of multiple dynamic friction plates and multiple static friction plates, multiple restoring springs uniformly distributed in the braking casing between two braking pistons, toothed spline in internal hole of braking casing, toothed spline on external circumference of static friction plate, static friction plates arranged on the toothed spline in braking casing for forming one body, and emergency braking piston and one end of driving braking piston, the other side of the brake assembly is in contact with one end face of a parking brake piston, a service brake piston is sleeved on an emergency brake piston, the other end face of the parking brake piston is in contact with a left brake cylinder cover through a plurality of brake springs, and the other end face of the emergency brake piston is in contact with a right brake cylinder cover through a plurality of brake springs.
The emergency brake piston is arranged to have a T-shaped axial section, so that the service brake piston can be conveniently sleeved on the small head of the T-shaped emergency brake piston.
After adopting this kind of structure, because braking subassembly one side contacts with emergency braking piston terminal surface, braking subassembly opposite side passes through push pedal and parking braking piston and service braking piston terminal surface contact, sets up service braking piston in parking braking piston, and another terminal surface of parking braking piston contacts with left braking cylinder lid through a plurality of brake spring, and another terminal surface of emergency braking piston contacts with right braking cylinder lid through a plurality of brake spring. When the parking spring is damaged, the emergency braking piston acts to compress the braking assembly, so that the aim of eliminating potential safety hazards is fulfilled.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic main sectional view of a wet brake with three braking functions according to the present invention.
Fig. 2 is a schematic main sectional view of a second embodiment of a wet brake with three braking functions according to the present invention.
Fig. 3 is a schematic main sectional view of a third embodiment of a wet brake with three braking functions according to the present invention.
Fig. 4 is a schematic main sectional view of a fourth embodiment of a wet brake with three braking functions according to the present invention.
In the figure: 1. the brake device comprises a left brake cylinder cover 2, a left brake cylinder body 3, a brake shell 4, a right brake cylinder body 5, a right brake cylinder cover 6, a brake assembly 7, an emergency brake piston 8, a service brake piston 9, a parking brake piston 10 and a push plate.
Detailed Description
FIG. 1 shows a wet brake with three braking functions, which comprises a plurality of dynamic friction plates, a plurality of static friction plates, a plurality of braking springs, a plurality of return springs, a left braking cylinder cover 1, a right braking cylinder cover 5, a braking piston, a braking shell 3, a left braking cylinder body 2 and a right braking cylinder body 4, wherein the braking pistons are respectively arranged at two sides of a braking assembly 6 consisting of the dynamic friction plates and the static friction plates, the plurality of return springs are uniformly distributed in the braking shell 3 between the two braking pistons, the braking shell 3 is arranged between the left braking cylinder body 2 and the right braking cylinder body 4, the braking shell 3, the left braking cylinder body 2 and the right braking cylinder body 4 can also be arranged into a whole, a tooth-shaped spline is arranged in an inner hole of the braking shell 3, a tooth-shaped spline is also arranged on the excircle of the static friction plate, the static friction plates are arranged on the tooth-shaped spline of the braking shell 3, the brake piston is integrated, one end of a brake piston arranged in a left brake cylinder body 2 and a right brake cylinder body 4 is contacted with a dynamic friction plate or a static friction plate, one side of a brake assembly 6 is contacted with one end surface of an emergency brake piston 7, the other side of the brake assembly 6 is contacted with one end surfaces of a parking brake piston 9 and a service brake piston 8 through a push plate 10, the service brake piston 8 is arranged in the parking brake piston 9, the other end surface of the parking brake piston 9 is contacted with a left brake cylinder cover 1 through a plurality of brake springs, and the other end surface of the emergency brake piston 7 is contacted with a right brake cylinder cover 5 through a plurality of brake springs; an annular groove capable of placing a service brake piston 8 is formed in one end face of the parking brake piston 9, and an oil inlet and an oil outlet which can be communicated with the service brake piston 8 are formed in the annular groove; one end face of the service brake piston 8 is connected with the push plate 10 through a screw.
FIG. 2 shows a wet brake with three braking functions, which may also be composed of a plurality of dynamic friction plates, a plurality of static friction plates, a plurality of braking springs, a plurality of return springs, a left braking cylinder cover 1, a right braking cylinder cover 5, a braking piston, a braking housing 3, a left braking cylinder 2 and a right braking cylinder 4, wherein the braking pistons are respectively arranged at two sides of a braking assembly 6 composed of a plurality of dynamic friction plates and a plurality of static friction plates, a plurality of return springs are evenly distributed in the braking housing 3 between the two braking pistons, a tooth-shaped spline is arranged in an inner hole of the braking housing 3, a tooth-shaped spline is also arranged on the excircle of the static friction plate, the static friction plates are arranged on the tooth-shaped spline of the braking housing 3 to form a whole, one end of the braking piston arranged in the left braking cylinder 2 and the right braking cylinder 4 is contacted with the dynamic friction plates or the static friction plates, one side of the braking assembly 6 is contacted with one end faces of an emergency braking piston 7 and a service braking piston 8 through a push plate 10, the other side of the brake assembly 6 is in contact with one end face of a parking brake piston 9, a service brake piston 8 is arranged in an emergency brake piston 7, the other end face of the parking brake piston 9 is in contact with a left brake cylinder cover 1 through a plurality of brake springs, and the other end face of the emergency brake piston 7 is in contact with a right brake cylinder cover 5 through a plurality of brake springs; an annular groove capable of placing a service brake piston 8 is formed in one end face of the emergency brake piston 7, and an oil inlet and an oil outlet which can be communicated with the service brake piston 8 are formed in the annular groove; the inner hole surfaces of the left brake cylinder body 2 and the right brake cylinder body 4 are arranged in a step shape, so that the emergency brake piston 7 and the parking brake piston 9 can be conveniently placed.
FIG. 3 shows a wet brake with three braking functions, which can also be composed of a plurality of dynamic friction plates, a plurality of static friction plates, a plurality of braking springs, a plurality of return springs, a left braking cylinder cover 1, a right braking cylinder cover 5, a braking piston, a braking shell 3, a left braking cylinder body 2 and a right braking cylinder body 4, wherein the braking pistons are respectively arranged at two sides of a braking component 6 composed of a plurality of dynamic friction plates and a plurality of static friction plates, the return springs are evenly distributed in the braking shell 3 between the two braking pistons, a tooth-shaped spline is arranged in an inner hole of the braking shell 3, a tooth-shaped spline is also arranged on the excircle of the static friction plate, the static friction plates are arranged on the tooth-shaped spline of the braking shell 3 to form a whole, one end of the braking piston arranged in the left braking cylinder body 2 and the right braking cylinder body 4 is contacted with the dynamic friction plates or the static friction plates, one side of the braking component 6 is contacted with one end face of an emergency braking piston 7, the other side of the brake assembly 6 is in contact with one end faces of a parking brake piston 9 and a service brake piston 8 through a push plate 10, the service brake piston 8 is sleeved on the parking brake piston 9, the other end face of the parking brake piston 9 is in contact with the left brake cylinder cover 1 through a plurality of brake springs, and the other end face of the emergency brake piston 7 is in contact with the right brake cylinder cover 5 through a plurality of brake springs; the parking brake piston 9 is arranged to have a T-shaped axial section, so that the service brake piston 8 is conveniently sleeved on the small end of the T-shaped parking brake piston 9; the surface of the inner hole of the left brake cylinder body 2 is arranged to be in a step shape, so that the emergency brake piston 7 can be conveniently placed; the surface of the inner hole of the right brake cylinder 4 is provided with an annular bulge, so that the end surface of the parking brake piston 9 is separated from the end surface of the service brake piston 8, and the parking brake piston 9 and the service brake piston 8 can conveniently and respectively move axially.
FIG. 4 shows a wet brake with three braking functions, which can also be composed of a plurality of dynamic friction plates, a plurality of static friction plates, a plurality of braking springs, a plurality of return springs, a left braking cylinder cover 1, a right braking cylinder cover 5, a braking piston, a braking shell 3, a left braking cylinder body 2 and a right braking cylinder body 4, wherein the braking pistons are respectively arranged at two sides of a braking component 6 composed of a plurality of dynamic friction plates and a plurality of static friction plates, the return springs are evenly distributed in the braking shell 3 between the two braking pistons, a tooth-shaped spline is arranged in an inner hole of the braking shell 3, a tooth-shaped spline is also arranged on the excircle of the static friction plate, the static friction plates are arranged on the tooth-shaped spline of the braking shell 3 to form a whole, one end of the braking piston arranged in the left braking cylinder body 2 and the right braking cylinder body 4 is contacted with the dynamic friction plates or the static friction plates, one side of the braking component 6 is contacted with one end faces of an emergency braking piston 7 and a service braking piston 8 through a push plate 10, the other side of the brake assembly 6 is in contact with one end face of a parking brake piston 9, a service brake piston 8 is sleeved on an emergency brake piston 7, the other end face of the parking brake piston 9 is in contact with the left brake cylinder cover 1 through a plurality of brake springs, and the other end face of the emergency brake piston 7 is in contact with the right brake cylinder cover 5 through a plurality of brake springs; the emergency brake piston 7 is arranged to have a T-shaped axial section, so that the service brake piston 8 is conveniently sleeved on the small end of the T-shaped emergency brake piston 7; the surface of the inner hole of the left brake cylinder 2 is arranged into a step shape, so that a parking brake piston 7 can be conveniently placed; an annular bulge is arranged on the surface of an inner hole of the right brake cylinder body 4, so that the end surface of the emergency brake piston 9 is separated from the end surface of the service brake piston 8, and the emergency brake piston 9 and the service brake piston 8 can conveniently and respectively move axially.
When the automobile emergency braking device is used, as shown in the attached drawing 1, an engine of the automobile is started, the emergency braking piston 7 is started, then the hand brake is released, the parking braking piston 9 is started, the automobile is in the advancing process, when the automobile needs to be stopped, the braking pedal is stepped, the service braking piston 8 advances under the action of hydraulic oil, and the dynamic friction plate or the static friction plate is pressed through the push plate 10 to achieve the braking purpose; the hand brake may be pulled or the emergency stop switch connected to the emergency brake piston 7 may be depressed when the service brake fails, or the emergency stop switch connected to the emergency brake piston 7 may be depressed when both the service brake and the parking brake fail to ensure that the vehicle brakes in an emergency.

Claims (9)

1. A wet brake with three braking functions is composed of multiple dynamic friction plates, multiple static friction plates, multiple braking springs, multiple return springs, a left braking cylinder cover, a right braking cylinder cover, a braking piston, a braking shell, a left braking cylinder body and a right braking cylinder body, wherein the braking pistons are respectively arranged at two sides of a braking assembly composed of the multiple dynamic friction plates and the multiple static friction plates, the multiple return springs are uniformly distributed in the braking shell between the two braking pistons, a tooth-shaped spline is arranged in an inner hole of the braking shell, a tooth-shaped spline is also arranged on the excircle of the static friction plate, the static friction plates are arranged on the tooth-shaped spline in the braking shell to form a whole, one end of the braking piston arranged in the left braking cylinder body and the right braking cylinder body is contacted with the dynamic friction plates or the static friction plates, and is characterized in that: braking subassembly (6) one side and emergency braking piston (7) a terminal surface contact, braking subassembly (6) opposite side passes through push pedal (10) and parking braking piston (9) and service braking piston (8) a terminal surface contact, sets up service braking piston (8) in parking braking piston (9), and another terminal surface of parking braking piston (9) contacts through a plurality of brake spring and left braking cylinder cap (1), and emergency braking piston (7) another terminal surface contacts through a plurality of brake spring and right braking cylinder cap (5).
2. A wet brake with triple braking function according to claim 1, characterized in that: an annular groove capable of placing a service brake piston (8) is formed in one end face of the parking brake piston (9), and an oil inlet and an oil outlet which can be communicated with the service brake piston (8) are formed in the annular groove.
3. A wet brake with triple braking function according to claim 1, characterized in that: one end face of the service braking piston (8) is connected with the push plate (10) through a screw.
4. A wet brake with three braking functions is composed of multiple dynamic friction plates, multiple static friction plates, multiple braking springs, multiple return springs, a left braking cylinder cover, a right braking cylinder cover, a braking piston, a braking shell, a left braking cylinder body and a right braking cylinder body, wherein the braking pistons are respectively arranged at two sides of a braking assembly composed of the multiple dynamic friction plates and the multiple static friction plates, the multiple return springs are uniformly distributed in the braking shell between the two braking pistons, a tooth-shaped spline is arranged in an inner hole of the braking shell, a tooth-shaped spline is also arranged on the excircle of the static friction plate, the static friction plates are arranged on the tooth-shaped spline in the braking shell to form a whole, one end of the braking piston arranged in the left braking cylinder body and the right braking cylinder body is contacted with the dynamic friction plates or the static friction plates, and is characterized in that: brake subassembly (6) one side is passed through push pedal (10) and emergency braking piston (7) and service braking piston (8) a terminal surface contact, brake subassembly (6) opposite side and parking braking piston (9) a terminal surface contact, set up service braking piston (8) in emergency braking piston (7), another terminal surface of parking braking piston (9) is through a plurality of brake spring and left braking cylinder cap (1) contact, another terminal surface of emergency braking piston (7) is through a plurality of brake spring and right braking cylinder cap (5) contact.
5. A wet brake with triple braking function according to claim 4, characterized in that: an annular groove capable of placing a service brake piston (8) is formed in one end face of the emergency brake piston (7), and an oil inlet and an oil outlet which can be communicated with the service brake piston (8) are formed in the annular groove.
6. A wet brake with three braking functions is composed of multiple dynamic friction plates, multiple static friction plates, multiple braking springs, multiple return springs, a left braking cylinder cover, a right braking cylinder cover, a braking piston, a braking shell, a left braking cylinder body and a right braking cylinder body, wherein the braking pistons are respectively arranged at two sides of a braking assembly composed of the multiple dynamic friction plates and the multiple static friction plates, the multiple return springs are uniformly distributed in the braking shell between the two braking pistons, a tooth-shaped spline is arranged in an inner hole of the braking shell, a tooth-shaped spline is also arranged on the excircle of the static friction plate, the static friction plates are arranged on the tooth-shaped spline in the braking shell to form a whole, one end of the braking piston arranged in the left braking cylinder body and the right braking cylinder body is contacted with the dynamic friction plates or the static friction plates, and is characterized in that: braking subassembly (6) one side and emergency braking piston (7) a terminal surface contact, braking subassembly (6) opposite side passes through push pedal (10) and parking braking piston (9) and service braking piston (8) a terminal surface contact, with service braking piston (8) suit on parking braking piston (9), another terminal surface of parking braking piston (9) is through a plurality of brake spring and left braking cylinder cap (1) contact, emergency braking piston (7) another terminal surface is through a plurality of brake spring and right braking cylinder cap (5) contact.
7. A wet brake with triple braking function according to claim 6, characterized in that: the parking brake piston (9) is arranged to be T-shaped in axial section, so that the service brake piston (8) is conveniently sleeved on the small end of the T-shaped parking brake piston (9).
8. A wet brake with three braking functions is composed of multiple dynamic friction plates, multiple static friction plates, multiple braking springs, multiple return springs, a left braking cylinder cover, a right braking cylinder cover, a braking piston, a braking shell, a left braking cylinder body and a right braking cylinder body, wherein the braking pistons are respectively arranged at two sides of a braking assembly composed of the multiple dynamic friction plates and the multiple static friction plates, the multiple return springs are uniformly distributed in the braking shell between the two braking pistons, a tooth-shaped spline is arranged in an inner hole of the braking shell, a tooth-shaped spline is also arranged on the excircle of the static friction plate, the static friction plates are arranged on the tooth-shaped spline in the braking shell to form a whole, one end of the braking piston arranged in the left braking cylinder body and the right braking cylinder body is contacted with the dynamic friction plates or the static friction plates, and is characterized in that: brake subassembly (6) one side is through push pedal (10) and emergency braking piston (7) and service braking piston (8) terminal surface contact, brake subassembly (6) opposite side and parking braking piston (9) terminal surface contact, with service braking piston (8) suit on emergency braking piston (7), another terminal surface of parking braking piston (9) is through a plurality of brake spring and left braking cylinder cap (1) contact, another terminal surface of emergency braking piston (7) is through a plurality of brake spring and right braking cylinder cap (5) contact.
9. A wet brake with triple braking function according to claim 8, characterized in that: the emergency brake piston (7) is arranged to be T-shaped in axial section, so that the service brake piston (8) can be conveniently sleeved on the small end of the T-shaped emergency brake piston (7).
CN202210218483.7A 2022-03-08 2022-03-08 Wet brake with three braking functions Pending CN114623174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210218483.7A CN114623174A (en) 2022-03-08 2022-03-08 Wet brake with three braking functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210218483.7A CN114623174A (en) 2022-03-08 2022-03-08 Wet brake with three braking functions

Publications (1)

Publication Number Publication Date
CN114623174A true CN114623174A (en) 2022-06-14

Family

ID=81900436

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210218483.7A Pending CN114623174A (en) 2022-03-08 2022-03-08 Wet brake with three braking functions

Country Status (1)

Country Link
CN (1) CN114623174A (en)

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