CN113738795B - Caliper brake friction disc return mechanism, caliper brake and automobile - Google Patents
Caliper brake friction disc return mechanism, caliper brake and automobile Download PDFInfo
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- CN113738795B CN113738795B CN202110997787.3A CN202110997787A CN113738795B CN 113738795 B CN113738795 B CN 113738795B CN 202110997787 A CN202110997787 A CN 202110997787A CN 113738795 B CN113738795 B CN 113738795B
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- friction plate
- disc
- brake
- caliper
- guide shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/005—Components of axially engaging brakes not otherwise provided for
- F16D65/0068—Brake calipers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/0006—Noise or vibration control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/42—Slack adjusters mechanical non-automatic
- F16D65/44—Slack adjusters mechanical non-automatic by means of direct linear adjustment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a friction plate return mechanism of a caliper brake, the caliper brake and an automobile, and relates to the technical field of caliper brakes, wherein the friction plate return mechanism comprises: at least one friction plate return assembly located between two calliper covers, every friction plate return assembly all includes: the two ends of the guide shaft are connected with the caliper cover; the two elastic reset discs are symmetrically sleeved on the guide shaft, and one surface of each elastic reset disc is attached to a corresponding friction plate; when the caliper brake brakes, each friction plate is close to the brake disc and drives a corresponding elastic reset disc to deform; when the caliper brake releases the brake, the elastic reset disc deforms and resets and drives the corresponding friction plate to separate from the brake disc and then returns. When the elastic reset disc is deformed and reset and drives the corresponding friction plate and the brake disc to separate from each other for reset, the surface contact is adopted, and the stress is balanced in the process of resetting the friction plate, so that the stability is good.
Description
Technical Field
The invention relates to the technical field of calipers, in particular to a friction plate return mechanism of a calipers, a calipers and an automobile.
Background
Along with the higher and higher requirements of people on energy conservation and environmental protection, it is more and more important to reduce the running resistance of the whole vehicle to reduce the energy consumption of the whole vehicle and increase the running mileage. A large part of the running resistance of the whole vehicle is derived from the drag force of the brake. A brake is a device having a function of decelerating, stopping, or maintaining a stopped state of a moving part (or a moving machine), and is a mechanical component for stopping or decelerating a moving part in the machine. Commonly known as brakes. The brake mainly comprises a brake frame, a brake piece, an operating device and the like. Some brakes are also equipped with automatic adjustment of the brake clearance.
Caliper brake is a brake commonly used in whole vehicles. In the braking process of the whole vehicle, the brake converts braking hydraulic pressure into pressure of the friction plate pressing on the brake disc to generate friction force so as to generate braking torque to enable the vehicle to slow down or stop. However, when the braking is released, the friction plate cannot be actively separated from the brake disc, so that the friction plate and the brake disc can still rub to generate dragging force in the running process of the vehicle, and the energy consumption of the whole vehicle can be increased.
In the prior art, a steel sheet spring is generally adopted to apply a force for separating the friction plate from the brake disc, a stress point is arranged at the upper end of the back plate of the friction plate, and when braking is released, the steel sheet spring pushes the friction plate to separate from the brake disc, so that active return of the friction plate is realized. However, the above scheme has the following problems:
the friction plate is unbalanced in stress, the friction plate has a tendency to incline in the caliper, the friction plate cannot be separated from the brake disc well, and the problem of offset abrasion of the friction plate can occur for a long time;
with the normal wear of the friction plate and the brake disc, the compression of the friction plate to the return mechanism spring becomes large, so that the starting force for pushing the friction plate becomes large, and the starting pressure of the whole brake caliper can be influenced.
Disclosure of Invention
The embodiment of the invention provides a caliper brake friction plate return mechanism, a caliper brake and an automobile, and aims to solve the technical problems that in the related art, in the process of returning a friction plate, stress is unbalanced and the friction plate is unstable.
In a first aspect, there is provided a caliper brake pad return mechanism comprising:
at least one friction plate return assembly located between two calliper covers, every friction plate return assembly all includes:
the two ends of the guide shaft are connected with the caliper cover;
the two elastic reset discs are symmetrically sleeved on the guide shaft, and one surface of each elastic reset disc is attached to a corresponding friction plate; and
when the caliper brake brakes, each friction plate is close to the brake disc and drives a corresponding elastic reset disc to deform; when the caliper brake releases the brake, the elastic reset disc deforms and resets and drives the corresponding friction plate to separate from the brake disc and then returns.
Since each of the friction plate return assemblies includes: the guide shaft and the two elastic reset discs are symmetrically sleeved on the guide shaft, and one surface of each elastic reset disc is used for being attached to a corresponding friction plate. When the caliper brake brakes, each friction plate is close to the brake disc and drives a corresponding elastic reset disc to deform; when the caliper brake releases the brake, the elastic reset disc deforms and resets and drives the corresponding friction plate to separate from the brake disc to return, the surface contact is adopted to transfer the restoring force, the stress is balanced in the return process of the friction plate, and the stability is good.
In some embodiments, each of the resilient return discs comprises:
the deformable disc is tightly sleeved on the guide shaft;
the hard disc is sleeved on the periphery of the deformable disc, the hard disc is attached to a corresponding friction plate, and when the friction plate is close to the brake disc, the friction plate drives the hard disc and deforms the deformable disc.
In some embodiments, the hard disc is provided with an annular groove, the deformable disc is embedded in the annular groove, and a chamfer with a preset size is formed on one side of the annular groove, which is close to a corresponding friction plate.
In some embodiments, the deformable disc is made of rubber and the hard disc is made of hard metal.
In some embodiments, each caliper housing is formed with a piston cavity having a piston disposed therein for driving a friction plate adjacent to the brake disc.
In some embodiments, each friction plate is provided with a flexible plate on a side adjacent to the corresponding piston.
In some embodiments, one end of the guide shaft is provided with a guide shaft sleeve.
In some embodiments, two friction plate return assemblies are arranged between the two caliper covers, and the two friction plate return assemblies are symmetrical along the vertical axial section of the wheel.
In a second aspect, a caliper brake is provided comprising the aforementioned caliper brake friction plate return mechanism.
In a third aspect, an automobile is provided comprising the caliper brake described above.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a caliper brake friction plate return mechanism, a caliper brake and an automobile, wherein the caliper brake friction plate return mechanism is provided with at least one friction plate return assembly, and each friction plate return assembly comprises: the guide shaft and the two elastic reset discs are symmetrically sleeved on the guide shaft, and one surface of each elastic reset disc is used for being attached to a corresponding friction plate. When the caliper brake brakes, each friction plate is close to the brake disc and drives a corresponding elastic reset disc to deform; when the caliper brake releases the brake, the elastic reset disc deforms and resets and drives the corresponding friction plate to separate from the brake disc to return, the surface contact is adopted to transfer the restoring force, the stress is balanced in the return process of the friction plate, and the stability is good.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a caliper brake pad return mechanism according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1 provided in an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of an elastic reset disc according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an elastic reset disc according to an embodiment of the present invention;
in the figure: 1. a friction plate return assembly; 11. a guide shaft; 12. an elastic reset disc; 121. a deformable disc; 122. a hard disk; 1221. an annular groove; 1222. chamfering; 13. a guide sleeve; 2. a caliper housing; 21. a piston chamber; 22. a piston; 3. a friction plate; 4. a brake disc; 5. a flexible sheet.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the prior art, a steel sheet spring is generally adopted to apply a force for separating the friction plate from the brake disc, a stress point is arranged at the upper end of the back plate of the friction plate, and when braking is released, the steel sheet spring pushes the friction plate to separate from the brake disc, so that active return of the friction plate is realized. However, the above scheme has the following problems:
the friction plate is unbalanced in stress, the friction plate has a tendency to incline in the caliper, the friction plate cannot be separated from the brake disc well, and the problem of offset abrasion of the friction plate can occur for a long time;
with the normal wear of the friction plate and the brake disc, the compression of the friction plate to the return mechanism spring becomes large, so that the starting force for pushing the friction plate becomes large, and the starting pressure of the whole brake caliper can be influenced.
The embodiment of the invention provides a friction plate return mechanism of a caliper brake, which can solve the technical problems of unbalanced stress and unstable friction plate in the return process of the friction plate in the prior art.
Referring to fig. 1 and 2, an embodiment of the present invention provides a caliper brake pad return mechanism comprising: at least one friction plate return assembly 1 disposed between two caliper housings 2, each of the friction plate return assemblies 1 comprising: a guide shaft 11 and two elastic return discs 12.
The two ends of the guide shaft 11 are connected with the caliper cover 2, the two elastic reset discs 12 are symmetrically sleeved on the guide shaft 11, and one surface of each elastic reset disc 12 is used for being attached to a corresponding friction plate 3. When the caliper brake is braked, each friction plate 3 approaches the brake disc 4 and drives a corresponding one of said elastic return discs 12 to deform; when the caliper brake releases the brake, the elastic reset disc 12 deforms and resets and drives the corresponding friction plate 3 to be separated from the brake disc 4 and then returns.
The friction plate return mechanism of the caliper brake is provided with at least one friction plate return assembly 1, and each friction plate return assembly 1 comprises: the friction plate comprises a guide shaft 11 and two elastic reset plates 12, wherein the two elastic reset plates 12 are symmetrically sleeved on the guide shaft 11, and one surface of each elastic reset plate 12 is used for being attached to a corresponding friction plate 3. When the caliper brake is braked, each friction plate 3 approaches the brake disc 4 and drives a corresponding one of said elastic return discs 12 to deform; when the caliper brake releases the brake, the elastic reset disc 12 deforms and resets and drives the corresponding friction plate 3 and the brake disc 4 to separate and reset, the surface contact is adopted to transfer the restoring force, and the stress is balanced in the process of resetting the friction plate, so that the stability is good.
Still further, in one embodiment, referring to fig. 3, each of the resilient return discs 12 includes: a deformable disc 121 and a rigid disc 122.
The deformable disc 121 is tightly sleeved on the guide shaft 11, the hard disc 122 is sleeved on the periphery of the deformable disc 121, the hard disc 122 is attached to a corresponding friction plate 3, and when the friction plate 3 approaches the brake disc 4, the friction plate 3 drives the hard disc 122 and deforms the deformable disc 121. The elastic reset disc 12 is simple in structure and convenient to install and detach.
Still further, in one embodiment, referring to fig. 1 and 4, the hard disk 122 is provided with an annular groove 1221, the deformable disk 121 is embedded in the annular groove 1221, and a chamfer 1222 with a predetermined size is formed on a side of the annular groove 1221 adjacent to the corresponding friction plate 3.
The chamfer 1222 of a preset size can control the maximum deformation of the deformable disc 121, and when the friction plate 3 and the brake disc 4 wear, the displacement of the friction plate 3 to drive the hard disc 122 to move is larger than the maximum deformation of the deformable disc 121. Referring to fig. 1, assuming that the friction plate 3 and the brake disc 4 are worn greatly, the displacement of the left friction plate 3 for driving the hard disc 122 to move may be larger than the maximum deformation of the deformable disc 121, at this time, the deformable disc 121 is driven to slide along the guide shaft 11 by a certain amount, the deformable disc 121 is tightly sleeved at a new position of the guide shaft 11, so that the return force and return clearance provided by the deformable disc 121 to the friction plate 3 are unchanged, so that the starting force for pushing the friction plate 3 is not increased, and the starting pressure of the whole brake caliper is not affected.
Still further, in one embodiment, the deformable disc 121 is made of rubber and the hard disc 122 is made of hard metal. Preferably, the material of the deformable disc 121 is ethylene propylene diene monomer EPDM (Ethylene Propylene Diene Monomer), EPDM is a terpolymer of ethylene, propylene and non-conjugated diene, the most important property of EPDM is its excellent oxidation resistance, ozone resistance and corrosion resistance, EPDM has the lowest specific gravity, can absorb a large amount of filler and oil with little influence on the properties, and can be made into a rubber compound with low cost. Preferably, the hard disk 122 is made of steel No. 45, the steel No. 45 is medium carbon structural steel, and the hard disk has good cold and hot workability, good mechanical properties, low price and wide application.
Still further, in one embodiment, referring to fig. 1, each caliper housing 2 is formed with a piston cavity 21, and a piston 22 is disposed in the piston cavity 21, and the piston 22 is used to drive each friction plate 3 close to the brake disc 4.
Further, in one embodiment, referring to fig. 1, a flexible sheet 5 is disposed on a surface of each friction sheet 3 adjacent to the corresponding piston, and the flexible sheet 5 may play a role in damping vibration and noise.
Further, in one embodiment, referring to fig. 1 and 5, one end of the guide shaft 11 is provided with a guide shaft sleeve 13, and the guide shaft sleeve 13 facilitates radial positioning and installation of the guide shaft 11.
Further, in one embodiment, as shown in fig. 1, two friction plate return assemblies 1 are arranged between two caliper covers 2, and the two friction plate return assemblies 1 are symmetrical along the vertical axial section of the wheel, so that the stress in the return process of the friction plate 3 is more balanced, and the stability is better.
The embodiment of the invention also provides a caliper brake, which comprises the caliper brake friction plate return mechanism. The friction plate return mechanism comprises: at least one friction plate return assembly 1 disposed between two caliper housings 2, each of the friction plate return assemblies 1 comprising: a guide shaft 11 and two elastic return discs 12.
The two ends of the guide shaft 11 are connected with the caliper cover 2, the two elastic reset discs 12 are symmetrically sleeved on the guide shaft 11, and one surface of each elastic reset disc 12 is used for being attached to a corresponding friction plate 3. When the caliper brake is braked, each friction plate 3 approaches the brake disc 4 and drives a corresponding one of said elastic return discs 12 to deform; when the caliper brake releases the brake, the elastic reset disc 12 deforms and resets and drives the corresponding friction plate 3 to be separated from the brake disc 4 and then returns.
The friction plate return mechanism of the caliper brake is provided with at least one friction plate return assembly 1, and each friction plate return assembly 1 comprises: the friction plate comprises a guide shaft 11 and two elastic reset plates 12, wherein the two elastic reset plates 12 are symmetrically sleeved on the guide shaft 11, and one surface of each elastic reset plate 12 is used for being attached to a corresponding friction plate 3. When the caliper brake is braked, each friction plate 3 approaches the brake disc 4 and drives a corresponding one of said elastic return discs 12 to deform; when the caliper brake releases the brake, the elastic reset disc 12 deforms and resets and drives the corresponding friction plate 3 and the brake disc 4 to separate and reset, the surface contact is adopted to transfer the restoring force, and the stress is balanced in the process of resetting the friction plate, so that the stability is good.
Still further, in one embodiment, referring to fig. 3, each of the resilient return discs 12 includes: a deformable disc 121 and a rigid disc 122.
The deformable disc 121 is tightly sleeved on the guide shaft 11, the hard disc 122 is sleeved on the periphery of the deformable disc 121, the hard disc 122 is attached to a corresponding friction plate 3, and when the friction plate 3 approaches the brake disc 4, the friction plate 3 drives the hard disc 122 and deforms the deformable disc 121. The elastic reset disc 12 is simple in structure and convenient to install and detach.
Still further, in one embodiment, referring to fig. 1 and 4, the hard disk 122 is provided with an annular groove 1221, the deformable disk 121 is embedded in the annular groove 1221, and a chamfer 1222 with a predetermined size is formed on a side of the annular groove 1221 adjacent to the corresponding friction plate 3.
The chamfer 1222 of a preset size can control the maximum deformation of the deformable disc 121, and when the friction plate 3 and the brake disc 4 wear, the displacement of the friction plate 3 to drive the hard disc 122 to move is larger than the maximum deformation of the deformable disc 121. Referring to fig. 1, assuming that the friction plate 3 and the brake disc 4 are worn greatly, the displacement of the left friction plate 3 for driving the hard disc 122 to move may be larger than the maximum deformation of the deformable disc 121, at this time, the deformable disc 121 is driven to slide along the guide shaft 11 by a certain amount, the deformable disc 121 is tightly sleeved at a new position of the guide shaft 11, so that the return force and return clearance provided by the deformable disc 121 to the friction plate 3 are unchanged, so that the starting force for pushing the friction plate 3 is not increased, and the starting pressure of the whole brake caliper is not affected.
Still further, in one embodiment, the deformable disc 121 is made of rubber and the hard disc 122 is made of hard metal. Preferably, the material of the deformable disc 121 is ethylene propylene diene monomer EPDM (Ethylene Propylene Diene Monomer), EPDM is a terpolymer of ethylene, propylene and non-conjugated diene, the most important property of EPDM is its excellent oxidation resistance, ozone resistance and corrosion resistance, EPDM has the lowest specific gravity, can absorb a large amount of filler and oil with little influence on the properties, and can be made into a rubber compound with low cost. Preferably, the hard disk 122 is made of steel No. 45, the steel No. 45 is medium carbon structural steel, and the hard disk has good cold and hot workability, good mechanical properties, low price and wide application.
Still further, in one embodiment, referring to fig. 1, each caliper housing 2 is formed with a piston cavity 21, and a piston 22 is disposed in the piston cavity 21, and the piston 22 is used to drive each friction plate 3 close to the brake disc 4.
Further, in one embodiment, referring to fig. 1, a flexible sheet 5 is disposed on a surface of each friction sheet 3 adjacent to the corresponding piston, and the flexible sheet 5 may play a role in damping vibration and noise.
Further, in one embodiment, referring to fig. 1 and 5, one end of the guide shaft 11 is provided with a guide shaft sleeve 13, and the guide shaft sleeve 13 facilitates radial positioning and installation of the guide shaft 11.
Further, in one embodiment, as shown in fig. 1, two friction plate return assemblies 1 are arranged between two caliper covers 2, and the two friction plate return assemblies 1 are symmetrical along the vertical axial section of the wheel, so that the stress in the return process of the friction plate 3 is more balanced, and the stability is better.
The embodiment of the invention also provides an automobile, which comprises the caliper brake, and the caliper brake comprises the caliper brake friction plate return mechanism. The friction plate return mechanism comprises: at least one friction plate return assembly 1 disposed between two caliper housings 2, each of the friction plate return assemblies 1 comprising: a guide shaft 11 and two elastic return discs 12.
The two ends of the guide shaft 11 are connected with the caliper cover 2, the two elastic reset discs 12 are symmetrically sleeved on the guide shaft 11, and one surface of each elastic reset disc 12 is used for being attached to a corresponding friction plate 3. When the caliper brake is braked, each friction plate 3 approaches the brake disc 4 and drives a corresponding one of said elastic return discs 12 to deform; when the caliper brake releases the brake, the elastic reset disc 12 deforms and resets and drives the corresponding friction plate 3 to be separated from the brake disc 4 and then returns.
The friction plate return mechanism of the caliper brake is provided with at least one friction plate return assembly 1, and each friction plate return assembly 1 comprises: the friction plate comprises a guide shaft 11 and two elastic reset plates 12, wherein the two elastic reset plates 12 are symmetrically sleeved on the guide shaft 11, and one surface of each elastic reset plate 12 is used for being attached to a corresponding friction plate 3. When the caliper brake is braked, each friction plate 3 approaches the brake disc 4 and drives a corresponding one of said elastic return discs 12 to deform; when the caliper brake releases the brake, the elastic reset disc 12 deforms and resets and drives the corresponding friction plate 3 and the brake disc 4 to separate and reset, the surface contact is adopted to transfer the restoring force, and the stress is balanced in the process of resetting the friction plate, so that the stability is good.
Still further, in one embodiment, referring to fig. 3, each of the resilient return discs 12 includes: a deformable disc 121 and a rigid disc 122.
The deformable disc 121 is tightly sleeved on the guide shaft 11, the hard disc 122 is sleeved on the periphery of the deformable disc 121, the hard disc 122 is attached to a corresponding friction plate 3, and when the friction plate 3 approaches the brake disc 4, the friction plate 3 drives the hard disc 122 and deforms the deformable disc 121. The elastic reset disc 12 is simple in structure and convenient to install and detach.
Still further, in one embodiment, referring to fig. 1 and 4, the hard disk 122 is provided with an annular groove 1221, the deformable disk 121 is embedded in the annular groove 1221, and a chamfer 1222 with a predetermined size is formed on a side of the annular groove 1221 adjacent to the corresponding friction plate 3.
The chamfer 1222 of a preset size can control the maximum deformation of the deformable disc 121, and when the friction plate 3 and the brake disc 4 wear, the displacement of the friction plate 3 to drive the hard disc 122 to move is larger than the maximum deformation of the deformable disc 121. Referring to fig. 1, assuming that the friction plate 3 and the brake disc 4 are worn greatly, the displacement of the left friction plate 3 for driving the hard disc 122 to move may be larger than the maximum deformation of the deformable disc 121, at this time, the deformable disc 121 is driven to slide along the guide shaft 11 by a certain amount, the deformable disc 121 is tightly sleeved at a new position of the guide shaft 11, so that the return force and return clearance provided by the deformable disc 121 to the friction plate 3 are unchanged, so that the starting force for pushing the friction plate 3 is not increased, and the starting pressure of the whole brake caliper is not affected.
Still further, in one embodiment, the deformable disc 121 is made of rubber and the hard disc 122 is made of hard metal. Preferably, the material of the deformable disc 121 is ethylene propylene diene monomer EPDM (Ethylene Propylene Diene Monomer), EPDM is a terpolymer of ethylene, propylene and non-conjugated diene, the most important property of EPDM is its excellent oxidation resistance, ozone resistance and corrosion resistance, EPDM has the lowest specific gravity, can absorb a large amount of filler and oil with little influence on the properties, and can be made into a rubber compound with low cost. Preferably, the hard disk 122 is made of steel No. 45, the steel No. 45 is medium carbon structural steel, and the hard disk has good cold and hot workability, good mechanical properties, low price and wide application.
Still further, in one embodiment, referring to fig. 1, each caliper housing 2 is formed with a piston cavity 21, and a piston 22 is disposed in the piston cavity 21, and the piston 22 is used to drive each friction plate 3 close to the brake disc 4.
Further, in one embodiment, referring to fig. 1, a flexible sheet 5 is disposed on a surface of each friction sheet 3 adjacent to the corresponding piston, and the flexible sheet 5 may play a role in damping vibration and noise.
Further, in one embodiment, referring to fig. 1 and 5, one end of the guide shaft 11 is provided with a guide shaft sleeve 13, and the guide shaft sleeve 13 facilitates radial positioning and installation of the guide shaft 11.
Further, in one embodiment, as shown in fig. 1, two friction plate return assemblies 1 are arranged between two caliper covers 2, and the two friction plate return assemblies 1 are symmetrical along the vertical axial section of the wheel, so that the stress in the return process of the friction plate 3 is more balanced, and the stability is better.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present invention, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.
Claims (5)
1. A caliper brake friction plate return mechanism comprising:
at least one friction plate return assembly (1) arranged between two caliper covers (2), each friction plate return assembly (1) comprises:
the two ends of the guide shaft (11) are fixedly connected with the caliper cover (2);
two elastic reset discs (12) are symmetrically sleeved on the guide shaft (11), and one surface of each elastic reset disc (12) is attached to a corresponding friction plate (3); and
when the caliper brake brakes, each friction plate (3) approaches the brake disc (4) and drives a corresponding elastic reset disc (12) to deform; when the caliper brake releases the brake, the elastic reset disc (12) deforms and resets and drives the corresponding friction plate (3) to separate from the brake disc (4) and then returns;
each of said resilient return discs (12) comprises:
a deformable disc (121), said deformable disc (121) being tightly fitted over said guide shaft (11);
a hard disc (122), wherein the hard disc (122) is sleeved on the periphery of the deformable disc (121), the hard disc (122) is attached with a corresponding friction plate (3), and when the friction plate (3) approaches to the brake disc (4), the friction plate (3) drives the hard disc (122) and deforms the deformable disc (121);
the hard disc (122) is provided with an annular groove (1221), the deformable disc (121) is embedded in the annular groove (1221), and a chamfer angle (1222) with a preset size is formed on one side, close to a corresponding friction plate (3), of the annular groove (1221);
each caliper cover (2) is formed by a piston cavity (21), a piston (22) is arranged in the piston cavity (21), the piston (22) is used for driving each friction plate (3) to be close to a brake disc (4), and one surface of each friction plate (3) close to the corresponding piston (22) is provided with a flexible plate (5);
one end of the guide shaft (11) is provided with a guide shaft sleeve (13), and the guide shaft sleeve (13) is provided with an opening.
2. The caliper brake pad return mechanism of claim 1 wherein:
the deformable disc (121) is made of rubber, and the hard disc (122) is made of hard metal.
3. The caliper brake pad return mechanism of claim 1 wherein:
two friction plate return assemblies (1) are arranged between the two caliper covers (2), and the two friction plate return assemblies (1) are symmetrical along the vertical axial section of the wheel.
4. A caliper brake comprising a caliper brake pad return mechanism as claimed in any one of claims 1 to 3.
5. An automobile comprising a caliper brake as defined in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN202110997787.3A CN113738795B (en) | 2021-08-27 | 2021-08-27 | Caliper brake friction disc return mechanism, caliper brake and automobile |
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| CN113738795B true CN113738795B (en) | 2023-07-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115263953B (en) * | 2022-08-15 | 2023-08-04 | 浙江博隆汽车零部件有限公司 | Hydraulic disc brake capable of automatically returning and use method |
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| FR1387677A (en) * | 1963-09-04 | 1965-01-29 | Teves Kg Alfred | Slack adjustment and centering device for disc brake with partial lining |
| JPH0960666A (en) * | 1995-08-25 | 1997-03-04 | Nissin Kogyo Kk | Multiple pot opposed caliper body of vehicular disc brake |
| WO2004022996A1 (en) * | 2002-08-16 | 2004-03-18 | Continental Teves Ag & Co. Ohg | Disc brake having at least two friction rings |
| JP2011058539A (en) * | 2009-09-08 | 2011-03-24 | Suzuki Motor Corp | Disc brake |
| CN102588474A (en) * | 2012-02-17 | 2012-07-18 | 杨永明 | Double-pump brake provided with automatic supply |
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| CN113738795A (en) | 2021-12-03 |
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