CN210258378U - Fixed caliper with parking function and electronic hydraulic brake system - Google Patents
Fixed caliper with parking function and electronic hydraulic brake system Download PDFInfo
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- CN210258378U CN210258378U CN201921252082.3U CN201921252082U CN210258378U CN 210258378 U CN210258378 U CN 210258378U CN 201921252082 U CN201921252082 U CN 201921252082U CN 210258378 U CN210258378 U CN 210258378U
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Abstract
The utility model discloses a fixed caliper with parking function and an electronic hydraulic braking system, wherein the fixed caliper comprises a braking component, a caliper body, a service pipeline and a parking pipeline, and a parking energy storage chamber and a service braking chamber are arranged in the braking component; an energy storage element is arranged in the parking energy storage chamber; when hydraulic pressure is input into the parking energy storage chamber, the parking energy storage chamber starts to store energy, and parking braking is released; when hydraulic pressure is unloaded in the parking energy storage chamber, parking braking is started; when hydraulic pressure is input into the service brake chamber, service braking is started. The electronic hydraulic braking system comprises conveying equipment and energy storage equipment, wherein the energy storage equipment is respectively communicated with a driving pipeline and a parking pipeline, and the on-off of a hydraulic pipe leading to the driving pipeline and the parking pipeline is controlled through an electromagnetic valve, so that the driving braking or parking braking process is realized. The utility model discloses overall structure integrated level is higher, can be more convenient arrange into the rear wheel rim, does not occupy the too big space of arranging of rear wheel, reduces the cost of part.
Description
Technical Field
The utility model relates to an automobile brake technical field especially relates to a take fixed calliper and electronic hydraulic braking system of parking function.
Background
The rear wheel actuating mechanism of the hydraulic braking system is a disc brake, wherein the part for converting the hydraulic pressure of a pipeline into clamping force is calipers, the calipers are divided into two structural forms of floating calipers and fixed calipers, the floating calipers have the advantages of small occupied space and cost, the fixed calipers are adopted in a large quantity due to the advantages of simple structure, and the fixed calipers are more excellent than the floating calipers but are generally adopted on medium and high-end vehicles due to the problems of cost and the like.
The fixed caliper is composed of a caliper body of the caliper, four or six wheel cylinder pistons, sealing rings of the wheel cylinder pistons, air bleeding screws and the like, and a plurality of piston cavities are connected together by hydraulic pipelines inside the caliper body of the caliper, so that the effect of braking the inner piston and the outer piston together is realized. The EPB parking brake system adopts a motor to drive a worm gear and a worm, further a friction plate is clamped to realize parking brake, and a floating caliper integrates the motor and a piston and is placed on the inner side of a hub. However, the inner side and the outer side of the piston of the fixed caliper are provided, and the motor cannot be integrated on the piston of the caliper, so that the parking brake can be realized only by additionally installing the caliper with the EPB motor on the rear wheel of the fixed caliper.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the technical problems that a rear wheel with fixed calipers in the prior art needs to be additionally provided with a caliper with an EPB motor to realize parking braking, the cost is high and the installation is inconvenient. The utility model provides a take fixed calliper and electronic hydraulic braking system of parking function to solve above-mentioned problem.
The utility model provides a technical scheme that its technical problem adopted is: the fixed caliper with the parking function comprises two brake assemblies, wherein the two brake assemblies are symmetrically arranged at the left end and the right end of a brake disc and are suitable for clamping or releasing the brake disc, and the brake assemblies clamp the brake disc to realize braking on the brake disc; the brake assembly is provided with a parking energy storage chamber and a service brake chamber; an energy storage element is arranged in the parking energy storage chamber; the caliper body is suitable for covering the two brake assemblies; the parking pipeline is communicated with the parking energy storage chamber at the left end and the parking energy storage chamber at the right end respectively after being introduced into the clamp body from the outside; and the service pipeline is communicated with the service brake chamber at the left end and the service brake chamber at the right end respectively after being introduced into the caliper body from the outside.
When hydraulic pressure is input into the parking energy storage chamber, the parking energy storage chamber starts to store energy, and the brake assembly releases parking brake; when hydraulic pressure is unloaded in the parking energy storage chamber, the brake assembly starts parking braking; when hydraulic pressure is input into the service brake chamber, the brake assembly starts service braking.
The utility model discloses in set up parking energy storage room and service brake room simultaneously in the braking subassembly to adopt the pipeline with both ends braking subassembly intercommunication, parking braking function and service brake function all only need just can realize through an entry, consequently can realize the drive of parking braking and service brake through one set of power supply, need not to dispose the power supply in addition.
Further, each brake assembly comprises one or more piston assemblies arranged in parallel, the axis of each piston assembly is parallel to the axis of the wheel, and each piston assembly is provided with a parking energy storage chamber and a service brake chamber; the piston assembly comprises a parking piston positioned in the parking energy storage chamber, a service piston positioned in the service braking chamber and a middle piston of which two ends are respectively contacted with the parking piston and the service piston; the traveling piston is arranged close to the brake disc.
When parking braking is carried out, the parking piston pushes the middle piston to extrude the service piston, and the service pistons at two ends simultaneously extrude the brake disc to realize parking braking; when the parking brake is released, the parking piston is far away from the middle piston, and the driving piston is not extruded by the middle piston, so that the driving piston is far away from the brake disc to realize the brake release; when the automobile needs service braking in the driving process, the driving pistons at two ends directly extrude the brake disc to realize service braking.
Further, the parking energy storage chamber is divided into an energy storage cavity and a parking oil cavity by a parking piston; the parking pipeline is communicated with the parking oil cavity; the energy storage element is located in the energy storage cavity and stores energy through extrusion, and the middle piston is in contact with the parking piston through the parking oil cavity.
When hydraulic pressure is input into the parking oil cavity through the parking pipeline, the parking piston is close to the energy storage cavity and extrudes the energy storage element, the energy storage element starts energy storage, and when hydraulic pressure is unloaded from the parking oil cavity, the energy storage element releases energy and pushes the parking piston to close to the parking oil cavity and push the middle piston to extrude the traveling piston to realize parking braking.
Preferably, the energy storage element is a belleville spring.
Preferably, a friction block is further arranged between the brake disc and the traveling piston, so that the braking effect is improved.
Preferably, a piston cover is arranged at one end of each piston assembly far away from the brake disc.
Furthermore, the driving pipeline comprises one end of the clamp body, a parking main pipe, a parking branch pipe and an external parking channel, wherein the parking main pipe is communicated with the parking oil cavity, the parking branch pipe is communicated with the other end of the clamp body, and the external parking channel is located outside the clamp body and is respectively communicated with the parking main pipe and the parking branch pipe.
The driving pipeline comprises a pair of pliers, a driving main pipe and a driving passage, wherein the pliers are communicated with one end of the pliers, the driving main pipe is located at the end, the communicating main pipe is located at the other end of the pliers, the driving branch pipe is located at the driving brake chamber, the driving passage is located outside the pliers and is communicated with the driving main pipe and the driving branch pipe respectively.
The parking pipelines at the two ends of the clamp body are connected with the driving pipeline through the external parking channel and the external driving channel, so that the pipeline maintenance is facilitated, and the size of the clamp body is reduced.
The utility model also provides an electronic hydraulic braking system, include: a conveying device adapted to convey hydraulic oil; the energy storage device is suitable for storing the hydraulic oil; is connected with the conveying equipment through a high-pressure pipeline; in the fixed caliper with the parking function, one rear wheel is arranged; the energy storage equipment is respectively communicated with the driving pipeline and the parking pipeline of the fixed caliper with the parking function through hydraulic pipes, each hydraulic pipe is provided with an electromagnetic valve, and the electromagnetic valves control the on-off of the hydraulic pipes leading to the driving pipeline and the parking pipeline, so that the driving braking or the parking braking process is realized.
Preferably, the delivery device is a hydraulic pump or an ESP control unit; the energy storage device is a high-pressure energy storage tank.
Preferably, a check valve is arranged on the high-pressure pipeline.
The utility model has the advantages that:
(1) take fixed calliper of parking function, change fixed calliper into the comprehensive calliper structure that has energy storage element, parking and service braking combined together, only need through one set of operating system control can, need not to set up the power supply in addition and control calliper respectively, overall structure integrated level is higher, can be more convenient arrange into the rear wheel rim, do not occupy the too big space of arranging of rear wheel, reduce the cost of part.
(2) Take fixed calliper of parking function, establish ties parking piston, middle piston and driving piston in proper order and arrange, just the driving piston is close to the brake disc sets up, when the vehicle is in driving state, parking braking is relieved, only realizes driving braking through the extrusion of driving piston, when the vehicle stops, promotes through the reserve energy of parking energy storage room release parking piston motion to transmit to the driving piston through middle piston, make driving piston extrusion the brake disc realizes parking braking, realizes driving braking and parking braking's independent operation through simple piston structure.
(3) Take fixed calliper of parking function, driving pipeline and parking pipeline link to each other the pipeline at calliper both ends through outside driving passageway and outside parking passageway respectively, are convenient for carry out the pipeline and overhaul, reduce simultaneously the pincers body size.
(4) Electronic hydraulic braking system, adopt new hydraulic pressure energy storage operating mechanism, by the tight and release of the clamp of the fixed calliper of solenoid valve control area parking function, realize the meticulous control of parking braking system and the anti-lock system of parking.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic perspective view of a fixed caliper with a parking function according to the present invention mounted on a wheel;
FIG. 2 is a cross-sectional schematic view of the stationary caliper with parking function shown in FIG. 1 mounted on a wheel;
FIG. 3 is an enlarged view of FIG. 2 at a;
FIG. 4 is an enlarged view of FIG. 2 at b;
FIG. 5 is an enlarged view at c of FIG. 2;
fig. 6 is a top view of the fixed caliper with parking function according to the present invention;
FIG. 7 is a schematic view of the hydraulic fluid flow when the service conduit is releasing hydraulic pressure to the service brake chamber;
FIG. 8 is a schematic view of hydraulic oil flow when the parking conduit is releasing hydraulic pressure to the parking oil cavity;
fig. 9 is a schematic flow chart of the hydraulic pressure releasing of the electro-hydraulic brake system of the present invention.
In the figure, 1, a brake disc, 2, a parking energy storage chamber, 201, an energy storage chamber, 202, a parking oil chamber, 3, a service brake chamber, 4, an energy storage element, 5, a caliper body, 6, a parking pipeline, 601, a parking main pipe, 602, a parking branch pipe, 603, an external parking channel, 7, a service pipeline, 701, a service main pipe, 702, a service branch pipe, 703, an external service channel, 8, a parking piston, 9, an intermediate piston, 10, a service piston, 11, a friction block, 12, a piston cover, 13, a sealing ring, 14, a sealing plate, 15, a high-pressure pipeline, 16 and a hydraulic pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "left", "right", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1-8, a fixed caliper with parking function and an electronic hydraulic brake system comprises two brake assemblies, a caliper body 5, a parking pipeline 6 and a service pipeline 7, wherein the two brake assemblies are symmetrically arranged at the left end and the right end of a brake disc 1 and are suitable for clamping or releasing the brake disc 1; the brake assembly is provided with a parking energy storage chamber 2 and a service brake chamber 3; an energy storage element 4 is arranged in the parking energy storage chamber 2, so that the parking energy storage chamber 2 has an energy storage function; the caliper body 5 is adapted to house two of said brake assemblies.
The parking pipeline 6 is respectively communicated with the left parking energy storage chamber 2 and the right parking energy storage chamber 2 after being introduced into the clamp body 5 from the outside, and meanwhile, hydraulic pressure is input or unloaded to the left parking energy storage chamber 2 and the right parking energy storage chamber 2; the service pipeline 7 is respectively communicated with the left service brake chamber 3 and the right service brake chamber 3 after being introduced into the caliper body 5 from the outside, and simultaneously, hydraulic pressure is input or unloaded to the left service brake chamber 3 and the right service brake chamber 3. Because the brake assemblies at two ends share one pipeline, and the parking brake and the service brake both adopt a hydraulic control mode, the parking brake and the service brake can be controlled by adopting the same operating system.
When hydraulic pressure is input into the parking energy storage chamber 2, the parking energy storage chamber 2 starts to store energy, and the brake assembly releases parking brake; when hydraulic pressure is unloaded from the parking energy storage chamber 2, the parking energy storage chamber 2 releases energy, and the brake assembly starts parking brake; when hydraulic pressure is input into the service brake chamber 3, the brake assembly starts service braking.
When the automobile is in a running state, the automobile provides a power source for the operating system, the operating system starts to work, hydraulic pressure is continuously input into the parking energy storage chamber 2, the parking energy storage chamber 2 starts to store energy, and when running braking is needed, hydraulic pressure is simultaneously input into the running braking chamber 3, so that running braking is realized. When the automobile is in a stop state, the power source is closed, the operating system stops working, the parking energy storage chamber 2 and the service brake chamber 3 both unload hydraulic pressure, and the parking energy storage chamber 2 realizes parking brake by means of released energy.
A specific embodiment of the present invention, as shown in fig. 1-8, is a fixed caliper with parking function and an electronic hydraulic brake system, comprising two brake assemblies, a caliper body 5, a parking pipe 6 and a traveling pipe 7, wherein the two brake assemblies are symmetrically arranged at the left and right ends of a brake disc 1 and are adapted to clamp or release the brake disc 1; each brake assembly comprises one or more piston assemblies arranged in parallel, the plurality of piston assemblies are arranged, so that brake failure caused by failure of individual piston assemblies can be avoided, each piston assembly is provided with a parking energy storage chamber 2 and a service brake chamber 3, and an energy storage element 4 is arranged in the parking energy storage chamber 2, so that the parking energy storage chamber 2 has an energy storage function; in the embodiment, each brake assembly comprises two piston assemblies arranged in parallel, each piston assembly comprises a parking piston 8 positioned in the parking energy storage chamber 2, a service piston 10 positioned in the service brake chamber 3 and a middle piston 9 with two ends respectively contacted with the parking piston 8 and the service piston 10, and the middle pistons 9 are only contacted and connected with the parking piston 8 and the service piston 10 and can be far away from each other; the service piston 10 is arranged close to the brake disc 1. When the brake is applied in service, the service piston 10 is separated from the middle piston 9, and the service piston 10 extrudes the brake disc 1; during parking braking, parking piston 8, middle piston 9 and driving piston 10 end to end, parking piston 8 receives the thrust to 1 direction of brake disc, and middle piston 9 and driving piston 10 are close to along with parking piston 8 together brake disc 1 extrudees brake disc 1, pincers body 5 are suitable for the cladding two braking component, pincers body 5 can be fixed on brake disc 1.
The parking pipeline 6 is respectively communicated with the left parking energy storage chamber 2 and the right parking energy storage chamber 2 after being introduced into the clamp body 5 from the outside, and simultaneously, hydraulic pressure is input or unloaded to the left parking energy storage chamber 2 and the right parking energy storage chamber 2; the service pipeline 7 is respectively communicated with the left service brake chamber 3 and the right service brake chamber 3 after being introduced into the caliper body 5 from the outside, and simultaneously, hydraulic pressure is input or unloaded to the left service brake chamber 3 and the right service brake chamber 3. Because the brake assemblies at two ends share one pipeline, and the parking brake and the service brake both adopt a hydraulic control mode, the parking brake and the service brake can be controlled by adopting the same operating system.
When hydraulic pressure is input into the parking energy storage chamber 2, the parking energy storage chamber 2 starts to store energy, and parking braking is released; when hydraulic pressure is unloaded from the parking energy storage chamber 2, the parking energy storage chamber 2 releases energy and starts parking braking; when hydraulic pressure is input into the service brake chamber 3, service braking is started.
The parking energy storage chamber 2 can be, but not limited to, as shown in fig. 2-4, the parking energy storage chamber 2 is divided into an energy storage cavity 201 and a parking oil cavity 202 by the parking piston 8, the parking oil cavity 202 is located at one end close to the service brake chamber 3, the energy storage cavity 201 is located at one end far away from the service brake chamber 3, and the energy storage element 4 is located in the energy storage cavity 201; the parking pipeline 6 is communicated with a parking oil cavity 202; and the intermediate piston 9 is in contact with the parking piston 8 through the parking oil chamber 202.
As shown in fig. 2 and 3, taking one of the piston assemblies at the left end as an example, the parking oil chamber 202 is located at the right end of the parking energy storage chamber 2, the energy storage chamber 201 is located at the right end of the parking energy storage chamber 2, and the parking pipe 6 is led into the parking oil chamber 202 from the right end face of the parking energy storage chamber 2; the service pipeline 7 is led into the service braking chamber 3 from the left end of the service braking chamber 3, and in order to ensure the sealing effect, a sealing ring 13 is arranged at the connection part of the middle piston 9, the parking energy storage chamber 2 and the service braking chamber 3. In order to prevent the intermediate piston 9 from separating from the parking energy storage chamber 2 and the service brake chamber 3, seal plates 14 having a diameter larger than the connection ports of the intermediate piston 9 with the parking energy storage chamber 2 and the service brake chamber 3 are provided at both ends of the intermediate piston 9, respectively, and the seal plates 14 are usually provided integrally with the intermediate piston 9.
The utility model discloses well energy storage component 4 can be belleville spring, and the locking of stopper is relieved through the hydraulic pressure of input when going, and when the vehicle stopped, uninstallation hydraulic pressure adopts belleville spring's mechanical force to pin the stopper, realizes the parking.
In the above embodiment, during braking, the service piston 10 may be in direct contact with the brake disc 1, or a friction block 11 may be disposed between the brake disc 1 and the service piston 10, so that the friction force of the friction block 11 is large, and a large braking effect can be generated by using a small pressing force.
In the above embodiment, a piston cover 12 is provided on each piston assembly at the end remote from the brake disc 1. As shown in fig. 1, the left end of the caliper body 5 is provided with two piston covers 12, so that two piston assemblies are provided at two ends of the inside of the caliper body 5.
In the above embodiment, the driving duct 7 and the parking duct 6 may be both disposed inside the caliper body 5, but since there are more piston assemblies, a plurality of pipes need to be disposed inside the caliper body 5 to connect with each piston assembly, the occupied space is large, and the pipes are not easy to be repaired, for this reason, in another specific embodiment of the present invention, the parking duct 6 includes a parking main pipe 601 communicating one end of the caliper body 5 with the parking oil chamber 202 located at the end, a parking branch pipe 602 communicating the parking oil chamber 202 located at the other end of the caliper body 5, and an external parking passage 603 located outside the caliper body 5 and respectively communicating with the parking main pipe 601 and the parking branch pipe 602, please refer to fig. 4-6 and 8.
The service duct 7 includes a service main pipe 701 communicating one end of the caliper 5 with the service brake chamber 3 located at the end, a service branch pipe 702 communicating the service brake chamber 3 located at the other end of the caliper 5, and an external service passage 703 located outside the caliper 5 and respectively communicating with the service main pipe 701 and the service branch pipe 702, please refer to fig. 4-7.
When each brake assembly comprises two or more piston assemblies, a plurality of branches for communicating all parking oil chambers 202 in the same brake assembly are arranged on the parking main pipe 601, and a plurality of branches for communicating all parking oil chambers 202 in the same brake assembly are arranged in the parking branch pipe 602; the travelling crane main pipe 701 and the travelling crane branch pipe 702 are also arranged in the same way.
The parking main pipe 601 enters from the left end of the caliper body 5 and is communicated with the parking oil chamber 202 at the left end (see fig. 4), one end of the external parking channel 603 is communicated with the parking main pipe 601, the other end of the external parking channel extends into the caliper body 5 at the right end through the outside of the caliper body 5, one end of the parking branch pipe 602 is communicated with the other end of the external parking channel 603, and the other end of the parking branch pipe is communicated with the parking oil chamber 202 at the right end (see fig. 5 and 6). The main service pipe 701 enters from the left end of the caliper body 5 and is communicated with the service brake chamber 3 at the left end (see fig. 4), one end of an external service channel 703 is communicated with the main service pipe 701, the other end of the external service channel extends into the caliper body 5 at the right end through the outside of the caliper body 5, one end of the service branch pipe 702 is communicated with the other end of the external service channel 703, and the other end of the service branch pipe is communicated with the service brake chamber 3 at the right end (see fig. 5 and 6). In fig. 1 and 4, a is an oil inlet of a service pipeline 7, B is an oil inlet of a parking pipeline 6, hydraulic oil in the oil inlet of a flows into a service brake chamber 3 at the other end through an external service channel 703 to generate a braking action, so as to push a service piston 10 to clamp a brake disc 1; and hydraulic oil in the oil inlet B flows to the parking oil cavity 202 at the other end through the external parking channel 603, the parking piston 8 is pushed to be far away from the brake disc 1, and parking braking is released.
An electro-hydraulic brake system comprising: a conveying device; is suitable for conveying hydraulic oil; the energy storage device is suitable for storing the hydraulic oil; is connected with conveying equipment through a high-pressure pipeline 15; in the fixed caliper with the parking function, one rear wheel is arranged; the energy storage equipment is respectively communicated with the driving pipeline 7 and the parking pipeline 6 of the fixed caliper with the parking function through the hydraulic pipes 16, electromagnetic valves are arranged on each hydraulic pipe 16, the electromagnetic valves connected with the driving pipelines are driving electromagnetic valves, and the electromagnetic valves connected with the parking pipelines are parking electromagnetic valves.
As shown in fig. 9, in the electro-hydraulic brake system, high pressure is generated by a delivery device and flows into an energy storage device, and a control solenoid valve inputs or releases hydraulic pressure to fixed calipers with parking function of a left rear wheel and a right rear wheel, respectively, so as to release or lock a brake disc 1, and a vehicle can smoothly run and park.
In a particular embodiment of the invention, the conveying equipment employs a hydraulic pump or an ESP control unit; the energy storage device is a high-pressure energy storage tank. The ESP control unit is the control unit of ESP automobile body stable system, wherein integrates the ESP pump, the utility model discloses an ESP control unit is as conveying equipment that is the electronic hydraulic braking system and ESP automobile body stable system integrated together, both sharing control unit.
Preferably, the high-pressure line 15 is provided with a check valve to prevent backflow after the hydraulic pump is stopped, thereby maintaining the sealing property of the high-pressure energy storage tank.
When the vehicle starts, the ESP control unit self-checks and builds pressure on the high-pressure energy storage tank, the parking electromagnetic valve control pipe presses the parking oil cavity 202 to release pressure, parking braking force of the disc spring is relieved, and the vehicle can normally run. In the vehicle driving process, when a foot brake is used, the driving electromagnetic valve control pipe presses the driving brake chamber 3 to release pressure, the rear wheel brake disc 1 is pressurized, meanwhile, the ESP control system acts or the driving electromagnetic valve starts an anti-lock function, the pressure in the driving brake chamber 3 is controlled, and the phenomenon of locking of the rear wheel is prevented.
When a driver pulls the parking button, the ESP control system acts when the vehicle is not stopped or the parking solenoid valve starts an anti-lock function, the pressure in the parking oil cavity 202 is controlled, and the phenomenon of locking of the rear wheels is prevented. When the vehicle stops, the parking brake button is pulled up, the pressure in the parking oil cavity 202 is completely relieved, and the parking force generated by the disc spring is completely applied to the rear wheel brake disc 1, so that the vehicle can be safely parked on a slope.
Taking the left end piston assembly as an example, the piston motion in each state is as follows:
and (3) parking brake release: the pipeline pressure of parking solenoid valve release transmits the right side of parking piston 8 in parking oil chamber 202 through parking house steward 601, promotes parking piston 8 and overcomes belleville spring's effect and moves left, and parking piston 8 moves left the back and breaks away from with middle piston 9, and under the effect of driving piston 10 not received the power, the effect of the outer centrifugal force that produces when the clutch blocks 11 received brake disc 1 rotation is backed off down, removes parking braking.
Parking and braking: when the vehicle stops, the parking electromagnetic valve releases the pressure in the pipeline, and the parking piston 8 is not under the action of high pressure any more, so that the disc spring pushes the parking piston 8 to move rightwards, the middle piston 9 is pushed to move rightwards, the middle piston 9 pushes the driving piston 10 and the friction block 11 to move rightwards, and the friction block 11 on the right side of the brake disc 1 and the driving piston and the friction block 11 on the right side of the brake disc 1 clamp the brake disc 1 together to generate a parking.
Service braking: the pressure of the pipeline released by the traveling electromagnetic valve is transmitted to the left side of a traveling piston 10 in a traveling braking chamber 3 through a traveling main pipe 701, the traveling piston 10 is pushed to move rightwards, the traveling piston 10 pushes a friction block 11 to move rightwards, and the friction block 11 on the right side of the brake disc 1 and the brake disc 1 are clamped together to generate a traveling effect.
In this specification, the schematic representations of the terms are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The utility model provides a take fixed calliper of parking function which characterized in that includes:
the brake assemblies are symmetrically arranged at the left end and the right end of the brake disc (1) and are suitable for clamping or releasing the brake disc (1); the brake assembly is provided with a parking energy storage chamber (2) and a service brake chamber (3); an energy storage element (4) is arranged in the parking energy storage chamber (2);
the caliper body (5), the caliper body (5) is suitable for covering two brake components;
the parking pipeline (6) is communicated with the parking energy storage chamber (2) at the left end and the parking energy storage chamber (2) at the right end respectively after being introduced into the clamp body (5) from the outside;
the service pipeline (7) is communicated with the service brake chamber (3) at the left end and the service brake chamber (3) at the right end after being introduced into the caliper body (5) from the outside;
when hydraulic pressure is input into the parking energy storage chamber (2), the parking energy storage chamber (2) starts to store energy, and the brake assembly releases parking brake; when the hydraulic pressure in the parking energy storage chamber (2) is unloaded, the brake assembly starts parking braking; when hydraulic pressure is input into the service brake chamber (3), the brake assembly starts service braking.
2. The stationary caliper with parking function according to claim 1, wherein:
each brake assembly comprises one or more piston assemblies arranged in parallel, each piston assembly having a parking energy storage chamber (2) and a service brake chamber (3) therein;
the piston assembly comprises a parking piston (8) positioned in the parking energy storage chamber (2), a service piston (10) positioned in the service braking chamber (3) and a middle piston (9) of which two ends are respectively contacted with the parking piston (8) and the service piston (10); the traveling piston (10) is arranged close to the brake disc (1).
3. The stationary caliper with parking function according to claim 2, wherein:
the parking energy storage chamber (2) is divided into an energy storage cavity (201) and a parking oil cavity (202) by a parking piston (8); the parking pipeline (6) is communicated with the parking oil cavity (202); the energy storage element (4) is located in the energy storage chamber (201), and the intermediate piston (9) is in contact with the parking piston (8) via the parking oil chamber (202).
4. The stationary caliper with parking function according to claim 1, wherein: the energy storage element (4) is a belleville spring.
5. The stationary caliper with parking function according to claim 2, wherein: and a friction block (11) is also arranged between the brake disc (1) and the traveling piston (10).
6. The stationary caliper with parking function according to claim 2, wherein: and one end of each piston assembly, which is far away from the brake disc (1), is provided with a piston cover (12).
7. The stationary caliper with parking function according to claim 3, wherein:
the travelling crane pipeline (7) comprises a parking main pipe (601) communicated with one end of the clamp body (5) and the parking oil cavity (202) positioned at the end, a parking branch pipe (602) communicated with the parking oil cavity (202) positioned at the other end of the clamp body (5), and an external parking channel (603) positioned outside the clamp body (5) and respectively communicated with the parking main pipe (601) and the parking branch pipe (602);
the service pipeline (7) comprises one end of the caliper body (5) and a service main pipe (701) which is positioned at the end and is communicated with the service brake chamber (3), a service branch pipe (702) which is communicated with the service brake chamber (3) and is positioned at the other end of the caliper body (5), and an external service channel (703) which is positioned outside the caliper body (5) and is respectively communicated with the service main pipe (701) and the service branch pipe (702).
8. An electro-hydraulic brake system, comprising:
a conveying device; is suitable for conveying hydraulic oil;
the energy storage device is suitable for storing the hydraulic oil; is connected with the conveying equipment through a high-pressure pipeline (15);
the stationary caliper with parking function according to any one of claims 1 to 7, one for each rear wheel;
the energy storage equipment is respectively communicated with the traveling pipeline (7) and the parking pipeline (6) of the fixed caliper with the parking function through hydraulic pipes (16), and each hydraulic pipe (16) is provided with an electromagnetic valve.
9. The electro-hydraulic brake system of claim 8, wherein: the conveying equipment is a hydraulic pump or an ESP control unit; the energy storage device is a high-pressure energy storage tank.
10. The electro-hydraulic brake system of claim 8, wherein: and a one-way valve is arranged on the high-pressure pipeline (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921252082.3U CN210258378U (en) | 2019-08-05 | 2019-08-05 | Fixed caliper with parking function and electronic hydraulic brake system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921252082.3U CN210258378U (en) | 2019-08-05 | 2019-08-05 | Fixed caliper with parking function and electronic hydraulic brake system |
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| CN210258378U true CN210258378U (en) | 2020-04-07 |
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| CN201921252082.3U Active CN210258378U (en) | 2019-08-05 | 2019-08-05 | Fixed caliper with parking function and electronic hydraulic brake system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281883A (en) * | 2019-08-05 | 2019-09-27 | 常州机电职业技术学院 | A kind of fixed caliper and electronic hydraulic brake system with parking function |
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2019
- 2019-08-05 CN CN201921252082.3U patent/CN210258378U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110281883A (en) * | 2019-08-05 | 2019-09-27 | 常州机电职业技术学院 | A kind of fixed caliper and electronic hydraulic brake system with parking function |
| CN110281883B (en) * | 2019-08-05 | 2024-06-18 | 常州机电职业技术学院 | Fixed caliper with parking function and electronic hydraulic brake system |
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