CN218063158U - Wet brake with double friction pairs - Google Patents
Wet brake with double friction pairs Download PDFInfo
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- CN218063158U CN218063158U CN202220625141.2U CN202220625141U CN218063158U CN 218063158 U CN218063158 U CN 218063158U CN 202220625141 U CN202220625141 U CN 202220625141U CN 218063158 U CN218063158 U CN 218063158U
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Abstract
The utility model discloses a such wet brake with two friction pairs, when solving that existing wet brake exists when parking spring damages, perhaps when brake assembly damages, easily cause potential safety hazard scheduling problem, the utility model discloses take be provided with the vice I (3) of friction and the vice II (4) of friction that comprise a plurality of dynamic friction pieces, a plurality of static friction pieces in braking casing (13), vice I (3) one side of friction and emergency braking piston (2) one end face contact, vice II (4) one side of friction is through push pedal (7) and parking braking piston (6) and service braking piston (5) one end face contact in arranging right brake cylinder body (11) in, with service braking piston (5) suit on parking braking piston (6), another terminal surface of parking braking piston (6) is through a plurality of brake spring (1) and right brake cylinder cap (10) contact, another terminal surface of emergency braking piston (2) is through a plurality of brake spring (1) and left brake cylinder cap (15) contact.
Description
Technical Field
The utility model relates to a brake especially relates to a wet brake who has two friction pairs who comprises a plurality of dynamic friction pieces, a plurality of static friction pieces, a plurality of brake spring, a plurality of return spring, left side braking cylinder cap, right side braking cylinder cap, brake piston, brake housing, left side braking cylinder body and right side 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 damages, easily lead to the parking function to lose, perhaps when the brake assembly damages, easily cause the braking distance overlength, especially when ore hauler advances in this kind of mine operating environment that the abrupt bend of slope is sharp, easily cause the potential safety hazard.
Disclosure of Invention
The utility model aims at providing a when the parking spring damages, perhaps when braking component damages, be difficult for leading to the parking function lose, can ensure driving safety's wet brake with double friction pair.
In order to achieve the above object, the utility model relates to a wet brake with double friction pairs, by a plurality of dynamic friction pieces, a plurality of static friction pieces, a plurality of brake spring, a plurality of return spring, left brake cylinder cap, right brake cylinder cap, the brake piston, the brake casing, left brake cylinder body and right brake cylinder body constitute, be provided with the tooth-shaped spline at the brake casing internal hole, also be provided with the tooth-shaped spline on the excircle of static friction piece, adorn static friction piece on the tooth-shaped spline in the brake casing, make it constitute an organic whole, be provided with left brake cylinder body and right brake cylinder body respectively in brake casing both sides, the one end of the brake piston of arranging in left brake cylinder body and right brake cylinder body contacts with dynamic friction piece or static friction piece, a plurality of return spring equipartitions are in the brake casing, the brake piston contacts with left brake cylinder cap, right brake cylinder cap respectively through a plurality of brake spring be provided with the friction pair I and the friction pair II that constitute by a plurality of brake friction piece, friction pair I side contacts with an emergency brake piston end face, friction pair one side contacts with the one end of the piston of arranging in right brake piston through parking brake piston and the contact with another brake piston, the emergency brake piston, pass through the emergency brake piston contact of parking brake piston and the emergency brake piston head face of another brake piston, the emergency brake piston.
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.
One end face of the service brake piston is connected with the push plate through a screw.
And the friction pair I and the friction pair II are separated and coaxially arranged.
And a plurality of return springs are uniformly distributed on the friction pair II close to the parking brake piston and the service brake piston, one end of each return spring is in contact with the brake shell, and the other end of each return spring is in contact with the push plate.
And an annular bulge convenient for separating the friction pair I from the friction pair II is arranged on the inner surface of the brake shell.
The inner surface of the brake shell is provided with a groove capable of containing a clamping ring, so that the friction pair I and the friction pair II can be conveniently separated.
The inner surface of the right brake cylinder body internally provided with the parking brake piston and the service brake piston is provided with an annular bulge convenient for separating the parking brake piston and the service brake piston, and the end surfaces of the parking brake piston and the service brake piston close to the annular bulge are respectively kept with a specified distance from the two end surfaces of the annular bulge, so that the parking brake piston and the service brake piston can move axially.
After the structure is adopted, a friction pair I and a friction pair II which are composed of a plurality of dynamic friction plates and a plurality of static friction plates are arranged in the brake shell, one side of the friction pair I is contacted with one end face of an emergency brake piston, one side of the friction pair II is contacted with one end face of a parking brake piston and a service brake piston which are arranged in a right brake cylinder body 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 contacted with a right brake cylinder cover through a plurality of brake springs, and the other end face of the emergency brake piston is contacted with a left brake cylinder cover through a plurality of brake springs. When the parking spring is damaged or the common friction pair II is damaged, the emergency braking piston acts to compress the friction pair I, 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 double friction pairs according to the present invention.
In the figure: 1. the brake device comprises a brake spring 2, an emergency brake piston 3, a friction pair I4, a friction pair II 5, a service brake piston 6, a parking brake piston 7, a push plate 8, an annular protrusion II 9, a return spring 10, a right brake cylinder cover 11, a right brake cylinder body 12, an annular protrusion I13, a brake shell 14, a left brake cylinder body 15 and a left brake cylinder cover.
Detailed Description
Fig. 1 shows the utility model relates to a wet brake with double friction pairs, by a plurality of dynamic friction pieces, a plurality of static friction pieces, a plurality of brake springs 1, a plurality of return springs 9, left brake cylinder cap 15, right brake cylinder cap 10, the brake piston, brake housing 13, left brake cylinder 14 and right brake cylinder 11 constitute, there is a tooth spline in the brake housing 13 hole, also be provided with the tooth spline on the excircle of static friction piece, install static friction piece on brake housing 13 tooth spline, make it constitute an organic whole, be provided with left brake cylinder 14 and right brake cylinder 11 respectively at brake housing 13 both sides, the one end of the brake piston of placing in left brake cylinder 14 and right brake cylinder 11 contacts with dynamic friction piece or static friction piece, a plurality of return springs 9 equipartition are in brake housing 13, the brake piston contacts with left brake cylinder cap 15, right brake cylinder cap 11 respectively through a plurality of brake springs 1, be provided with the friction pair 3 and the friction pair 4 that a plurality of static friction pieces constitute in brake housing 13, parking piston I contacts with one side through a plurality of brake springs I2, the emergency brake piston I contacts with one side through a plurality of emergency brake piston I and a plurality of brake piston II contacts with the right brake piston through a plurality of brake piston 5, another side through a plurality of brake piston I and a plurality of brake piston II contact with the brake piston 2, the emergency brake piston 2, the brake piston 2 through a plurality of brake piston 2 contact with the brake piston, the emergency brake piston 2 and the emergency brake piston 2 in the brake piston 2, another side of emergency brake piston, the brake piston 2 through a plurality of emergency brake piston, the brake piston 2 in the brake piston, the brake piston 2 and the brake piston 2 in the brake piston, the brake piston 2 in the brake piston end face of the brake piston, another end face of brake piston, the brake cylinder cap 6 and the brake piston of the brake piston; the parking brake piston 6 is arranged to have a T-shaped axial section, so that the service brake piston 5 is conveniently sleeved on the small end of the T-shaped parking brake piston 6; one end face of the service brake piston 5 is connected with the push plate 7 through a screw; the friction pair I3 and the friction pair II 4 are separated and arranged coaxially; a plurality of return springs 9 are uniformly distributed on the friction pair II 4 close to the parking brake piston 6 and the service brake piston 5, one end of each return spring 9 is in contact with the brake shell 13, and the other end of each return spring 9 is in contact with the push plate 7; an annular convex I12 which is convenient for separating the friction pair I3 from the friction pair II 4 is arranged on the inner surface of the brake shell 13; a groove capable of placing a snap ring can be formed in the inner surface of the brake shell 13, so that the friction pair I3 and the friction pair II 4 can be conveniently separated; an annular bulge II 8 convenient for separating the parking brake piston 6 from the service brake piston 5 is arranged on the inner surface of the right brake cylinder body 11 internally provided with the parking brake piston 6 and the service brake piston 5, the end surfaces, close to the annular bulge II 8, of the parking brake piston 6 and the service brake piston 5 are respectively provided with a specified distance from the two end surfaces of the annular bulge II 8, two cavities are formed at the two ends of the annular bulge II 8, the parking brake piston 6 and the service brake piston 5 are convenient to move axially, oil inlets and oil outlets which can be connected with different oil pipes are respectively arranged in the two cavities, and a groove capable of placing an oil seal is arranged on the cylindrical inner surface of the annular bulge II 8.
When the automobile emergency braking device is used, an engine of an automobile is started firstly, the emergency braking piston 2 is started, then the hand brake is released, the parking braking piston 6 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 5 advances under the action of hydraulic oil, and the dynamic friction plate or the static friction plate on the friction pair I3 is pressed through the push plate 7 to achieve the braking purpose; the hand brake may be pulled or the emergency stop switch connected to the emergency brake piston 2 may be depressed when the service brake fails, or the emergency stop switch connected to the emergency brake piston 2 may be depressed when both the service brake and the parking brake fail to ensure that the vehicle brakes in an emergency.
Claims (8)
1. A wet brake with double friction pairs comprises a plurality of dynamic friction plates, a plurality of static friction plates, a plurality of brake springs, a plurality of return springs, a left brake cylinder cover, a right brake cylinder cover, a brake piston, a brake shell, a left brake cylinder body and a right brake cylinder body, wherein a tooth-shaped spline is arranged in an inner hole of the brake 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 brake shell to form a whole, the left brake cylinder body and the right brake cylinder body are respectively arranged on two sides of the brake shell, one end of the brake piston arranged in the left brake cylinder body and the right brake cylinder body is contacted with the dynamic friction plates or the static friction plates, the return springs are uniformly distributed in the brake shell, and the brake piston is respectively contacted with the left brake cylinder cover and the right brake cylinder cover through the brake springs, and the wet brake is characterized in that: be provided with in braking casing (13) and vice I (3) of friction and the vice II (4) of friction that constitute by a plurality of friction discs, a plurality of static friction discs, vice I (3) one side of friction contacts with emergency braking piston (2) terminal surface, vice II (4) one side of friction contacts through push pedal (7) with parking braking piston (6) and service braking piston (5) terminal surface of arranging right brake cylinder body (11) in, suit service braking piston (5) on parking braking piston (6), another terminal surface of parking braking piston (6) contacts through a plurality of brake spring (1) and right brake cylinder cap (10), another terminal surface of emergency braking piston (2) contacts through a plurality of brake spring (1) and left brake cylinder cap (15).
2. A wet brake with dual friction pairs as claimed in claim 1, wherein: the parking brake piston (6) is arranged to be T-shaped in axial section, so that the service brake piston (5) is conveniently sleeved on the small end of the T-shaped parking brake piston (6).
3. A wet brake with dual friction pairs as claimed in claim 1, wherein: one end face of the service braking piston (5) is connected with the push plate (7) through a screw.
4. A wet brake with dual friction pairs as claimed in claim 1, wherein: and the friction pair I (3) and the friction pair II (4) are separated and are arranged coaxially.
5. A wet brake with dual friction pairs as claimed in claim 1, wherein: a plurality of return springs (9) are uniformly distributed on a friction pair II (4) close to the parking brake piston (6) and the service brake piston (5), one end of each return spring (9) is in contact with the brake shell (13), and the other end of each return spring (9) is in contact with the push plate (7).
6. A wet brake with dual friction pairs as claimed in claim 1, wherein: and an annular bulge I (12) which is convenient for separating the friction pair I (3) from the friction pair II (4) is arranged on the inner surface of the brake shell (13).
7. A wet brake with dual friction pairs as claimed in claim 1, wherein: a groove capable of containing a snap ring is formed in the inner surface of the brake shell (13), so that the friction pair I (3) and the friction pair II (4) are separated conveniently.
8. A wet brake with dual friction pairs as claimed in claim 1, wherein: an annular protrusion II (8) convenient for separating the parking brake piston (6) from the service brake piston (5) is arranged on the inner surface of the right brake cylinder body (11) internally provided with the parking brake piston (6) and the service brake piston (5), the end surfaces, close to the annular protrusion II (8), of the parking brake piston (6) and the service brake piston (5) are respectively spaced from the two end surfaces of the annular protrusion II (8) by a specified distance, and the parking brake piston (6) and the service brake piston (5) can move axially conveniently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220625141.2U CN218063158U (en) | 2022-03-22 | 2022-03-22 | Wet brake with double friction pairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220625141.2U CN218063158U (en) | 2022-03-22 | 2022-03-22 | Wet brake with double friction pairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218063158U true CN218063158U (en) | 2022-12-16 |
Family
ID=84413927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220625141.2U Active CN218063158U (en) | 2022-03-22 | 2022-03-22 | Wet brake with double friction pairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218063158U (en) |
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2022
- 2022-03-22 CN CN202220625141.2U patent/CN218063158U/en active Active
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