CN118757521B - Disc brakes and brake systems - Google Patents
Disc brakes and brake systems Download PDFInfo
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- CN118757521B CN118757521B CN202410865732.0A CN202410865732A CN118757521B CN 118757521 B CN118757521 B CN 118757521B CN 202410865732 A CN202410865732 A CN 202410865732A CN 118757521 B CN118757521 B CN 118757521B
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- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims description 28
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 230000007704 transition Effects 0.000 claims description 18
- 230000001133 acceleration Effects 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
- F16D65/02—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
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
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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
- F16D2065/13—Parts or details of discs or drums
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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
- F16D2065/13—Parts or details of discs or drums
- F16D2065/1304—Structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
本发明提供了盘式制动器及制动系统，涉及车辆机械领域，包括有安装支座，安装支座上安装有主动单元，主动单元上连接有制动单元和摩擦单元，主动单元用于驱动制动单元和摩擦单元，制动单元用于传动制动力矩，摩擦单元用于施加制动力矩；还包括有性能监测单元，性能监测单元用于对盘式制动器的制动性能进行监测。本发明解决了浮动卡钳式盘式制动器在重型车辆上制动力矩不足,质量较大，制动力矩稳定差，液压系统发生故障后盘式制动器失效的技术问题。
The present invention provides a disc brake and a brake system, which relates to the field of vehicle machinery, including a mounting support, an active unit mounted on the mounting support, a brake unit and a friction unit connected to the active unit, the active unit is used to drive the brake unit and the friction unit, the brake unit is used to transmit the braking torque, and the friction unit is used to apply the braking torque; and also includes a performance monitoring unit, which is used to monitor the braking performance of the disc brake. The present invention solves the technical problems that the floating caliper disc brake has insufficient braking torque on heavy vehicles, has a large mass, has poor braking torque stability, and fails to work after the hydraulic system fails.
Description
Technical Field
The invention belongs to the field of vehicle machinery, and particularly relates to a disc brake and a brake system.
Background
A disc brake is a common automotive braking system for decelerating or stopping a vehicle by applying a braking force to a metal disc of a wheel, and is generally composed of a brake disc, a brake caliper and a brake pad, wherein when a driver presses a brake pedal, brake fluid is pushed into the brake caliper to clamp the brake disc, so that the braking force is generated, and the disc brake has better heat dissipation performance and braking efficiency than a conventional drum brake;
Most of the existing disc brakes are designed in a floating caliper mode, braking performance of the existing disc brakes is good when the existing disc brakes are used on light vehicles, however, when the existing disc brakes are used on heavy vehicles, braking torque is insufficient, meanwhile, materials are common, the mass is large, braking torque stability is poor compared with that of the existing disc brakes in a caliper mode, meanwhile, the existing disc brakes are hydraulically driven to brake, and when a hydraulic system breaks down, the disc brakes are invalid.
Disclosure of Invention
The present invention provides a disc brake and a brake system for solving at least one technical problem set forth in the background art.
In order to solve the technical problems, the invention discloses a disc brake, which comprises a mounting support, wherein an active unit is arranged on the mounting support, the active unit is connected with a braking unit and a friction unit, the active unit is used for driving the braking unit and the friction unit, the braking unit is used for transmitting braking torque, and the friction unit is used for applying braking torque;
The brake system further comprises a performance monitoring unit, wherein the performance monitoring unit is used for monitoring the braking performance of the disc brake.
Preferably, the driving unit comprises a floating support, the floating support is arranged on the mounting support, an annular hydraulic cylinder is connected to the floating support in a sliding mode, a plurality of limit keys are arranged on the floating support, the limit keys are matched with the annular hydraulic cylinder, a plurality of first compression elastic pieces are arranged between the mounting support and the annular hydraulic cylinder, a transmission shaft sleeve is arranged at the center of the floating support, a first connecting disc is fixed at one end of the transmission shaft sleeve, a braking unit is connected to the first connecting disc through a bolt, and a vehicle driving shaft is connected to the other end of the transmission shaft sleeve.
Preferably, the annular hydraulic cylinder comprises a bottom cylinder disc, the bottom cylinder disc is slidably connected to the floating support, a plurality of key grooves are formed in the bottom cylinder disc, the key grooves and the limiting keys are in one-to-one correspondence and are matched with each other, an annular cylinder sleeve is fixed on the bottom cylinder disc, an annular piston is slidably connected in the annular cylinder sleeve, a plurality of elastic elements are arranged between the annular piston and the bottom cylinder disc, and a friction unit is connected to the end face of the annular cylinder sleeve.
Preferably, the braking unit comprises a second connecting disc, an inner ring of the second connecting disc is connected to the first connecting disc through a bolt, a wheel shaft sleeve is fixed on the second connecting disc, a braking disc is connected to an outer ring of the second connecting disc through a bolt, and friction units are arranged on two sides of the braking disc.
Preferably, the friction unit is including left brake disc and right brake disc, all cyclic annular a plurality of friction discs of arranging on left brake disc and the right brake disc, all is fixed with the brake block on the friction disc, installs a plurality of connecting blocks on the left brake disc, and the connecting block other end is connected on cyclic annular cylinder liner, is equipped with a plurality of draw-in grooves on the right brake disc, mutually support between draw-in groove and the connecting block, and relative sliding is between right brake disc and the connecting block, is connected through a plurality of connecting rods between left brake disc and the right brake disc, all overlaps on the connecting rod and is equipped with compression elastic component two.
Preferably, the performance monitoring unit comprises a control module, a data module, a detection module and an early warning module, wherein the detection module comprises
A plurality of temperature sensors for detecting the temperature of the brake disc and the brake pad, which are arranged on the brake disc and the brake pad,
The mass sensor is used for detecting the mass of the whole vehicle and is arranged on the frame,
A pressure sensor for detecting the hydraulic pressure of the annular hydraulic cylinder, which is arranged on the annular hydraulic cylinder,
The angular velocity sensor is used for detecting the angular velocity of the wheel shaft sleeve and is arranged on the wheel shaft sleeve;
the timing sensor is used for detecting the interval time of continuous braking of the disc brake and is arranged on the left brake disc;
the angular acceleration sensor is used for detecting the angular acceleration of the wheel shaft sleeve and is arranged on the wheel shaft sleeve;
The detection module is electrically connected with the data module, the control module is electrically connected with the data module and the early warning module, and the control module controls the early warning module to work based on the data structure of the data module.
Preferably, the control module controls the early warning module based on the data result of the data module, and the early warning module comprises the following steps:
The method comprises the following steps that firstly, a data module calculates the current braking performance coefficient of the disc brake based on a plurality of temperature sensors, a mass sensor, a pressure sensor, an angular velocity sensor, a timing sensor and an angular acceleration sensor:
=(1);
wherein: In order to provide a coefficient of braking performance, For the coefficient of friction between the brake disc and the brake pads,As the detection value of the pressure sensor,In order for the effective friction area to be available,The inner diameter is applied to the brake pads on the brake disc,The brake pads on the brake disc act on the outer diameter,Is of average radius,For the detection value of the mass sensor,The acceleration of the gravity is that,As the road adhesion coefficient, the adhesion coefficient of the road,As the detection value of the angular acceleration sensor,For the radius of rotation of the road surface to the axle sleeve,Is the sliding coefficient of the road surface,As the detection value of the temperature sensor,For the heat dissipation coefficient of the brake disc and the brake pad,As the detection value of the angular velocity sensor,For the detection value of the time-counting sensor,The optimal working temperature of the brake disc and the brake block;
Step two, data center comparison And:
When (when)And when the control module starts the early warning unit to give an alarm.
A braking system comprises a disc brake, wherein a transmission shaft sleeve and a wheel shaft sleeve of the disc brake are connected to an output shaft of a speed reducer through a spline, a mounting support of the disc brake is connected to a vehicle body through a bolt, and a cooling assembly is arranged on one side of the disc brake.
Preferably, the cooling assembly comprises an air inlet duct, the air inlet duct is fixed on the vehicle body, the other end of the air inlet duct penetrates through and is connected with a transition duct, the other end of the transition duct is connected with an output duct, a compensation duct is connected to the transition duct, the other end of the compensation duct is connected with a compensation fan, an isolation net is installed at the joint of the air inlet duct and the transition duct, a filter element is arranged at the joint of the transition duct and the output duct, a compression fan is installed at the outlet end of the output duct, and an air inlet adjusting module is arranged on the air inlet duct.
Preferably, the air inlet adjusting module comprises an adjusting plate, two ends of the adjusting plate are respectively hinged with an adjusting rod and a pulley, the adjusting rod is arranged on an electric rotating shaft, the electric rotating shaft is rotationally connected on an air inlet duct, the pulley is slidably connected on a slide way, the slide way is fixed on the side wall of the air inlet duct, a stop pin is arranged on the side wall of the air inlet duct, a groove is arranged above the air inlet duct, and the adjusting plate and the groove are mutually matched.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of a disc brake according to the present invention;
FIG. 2 is a schematic diagram of a disc brake according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a disc brake of the present invention;
FIG. 4 is a schematic diagram of a disc brake according to the present invention;
FIG. 5 is a schematic diagram of a brake system according to the present invention;
fig. 6 is a schematic diagram of a brake system according to the second embodiment of the present invention.
1, A mounting support; 2, a driving unit, 21, a floating support, 22, a limit key, 23, a compression elastic piece I, 24, a driving sleeve, 25, a connecting disc I, 3, an annular hydraulic cylinder, 31, a bottom cylinder disc, 32, a key slot, 33, an annular cylinder sleeve, 34, an annular piston, 35, an elastic element, 4, a braking unit, 41, a connecting disc II, 42, a wheel axle sleeve, 43, a brake disc, 5, a friction unit, 51, a left brake disc, 52, a right brake disc, 53, a friction plate, 54, a brake block, 55, a connecting block, 56, a clamping groove, 57, a connecting rod, 58, a compression elastic piece II, 8, a disc brake, 81, a speed reducer, 9, a cooling assembly, 91, an air inlet duct, 92, a transition duct, 93, an output duct, 94, a compensating duct, 95, a compensating fan, 96, an isolation net, 97, a filter element, 98, a compression fan, 10, an air inlet adjusting module, 101, an adjusting plate, 102, an adjusting rod, 103, a pulley, 104, an electric rotating shaft, 105, a slideway, 106, a blocking pin, 107 and a groove.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between the embodiments may be combined with each other, but it is necessary to base that a person skilled in the art can implement the combination of technical solutions, when the combination of technical solutions contradicts or cannot be implemented, should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present invention.
The invention provides the following examples
Example 1
The embodiment of the invention provides a disc brake, as shown in figures 1-6, which comprises a mounting support 1, wherein an active unit 2 is arranged on the mounting support 1, the active unit 2 is connected with a braking unit 4 and a friction unit 5, the active unit 2 is used for driving the braking unit 4 and the friction unit 5, the braking unit 4 is used for transmitting braking torque, and the friction unit 5 is used for applying braking torque;
The brake system further comprises a performance monitoring unit, wherein the performance monitoring unit is used for monitoring the braking performance of the disc brake.
The working principle of the technical scheme has the beneficial effects that the disc brake is fixed on a vehicle body through the mounting support 1, the driving unit 2 on the mounting support 1 is driven in a reverse direction through hydraulic pressure, the driving unit 2 is far away from the friction unit 5 to brake when the hydraulic pressure is applied, the driving unit 2 pushes the friction unit 5 when the hydraulic pressure is released, so that the friction unit 5 and the braking unit 4 are contacted with each other, the friction unit 5 and the braking unit 4 are rubbed with each other under the action of the pressure, the braking function is realized, the performance monitoring unit monitors the disc brake, and the braking performance of the disc brake is judged according to heat;
The invention realizes braking by using the driving unit 2, the braking unit 4 and the friction unit 5, the design adopts a full-disc type design, the braking moment is larger, the braking time and the braking distance are relatively shorter under the same pressure, the braking unit 4 is made of carbon ceramic materials, the weight is relatively lighter, the heat capacity is large, the friction coefficient cannot be attenuated when the braking temperature rises, the full-disc type design is adopted, the braking moment distribution is more uniform in the braking process, the braking process is more stable, the stability of the vehicle in the braking process is ensured, meanwhile, the brake adopts a mechanical and reverse hydraulic braking model, the brake does not brake when hydraulic pressure exists, and the brake brakes when the hydraulic pressure does not exist, the design ensures that the vehicle can still realize reliable braking when the hydraulic system fails, and the braking heat of the disc brake is monitored by the performance monitoring unit, the early warning is made on the braking performance reduction in advance, and the driving safety is ensured.
Example 2
On the basis of embodiment 1, the driving unit 2 comprises a floating support 21, the floating support 21 is mounted on the mounting support 1, the floating support 21 is slidably connected with an annular hydraulic cylinder 3, a plurality of limit keys 22 are arranged on the floating support 21, the limit keys 22 are matched with the annular hydraulic cylinder 3, a plurality of first compression elastic pieces 23 are arranged between the mounting support 1 and the annular hydraulic cylinder 3, an outdrive 24 is arranged in the center of the floating support 21, one end of the outdrive 24 is fixedly provided with a first connecting disc 25, the first connecting disc 25 is connected with a braking unit 4 through bolts, and the other end of the outdrive 24 is connected with a vehicle driving shaft.
The annular hydraulic cylinder 3 comprises a bottom cylinder disc 31, the bottom cylinder disc 31 is slidably connected to the floating support 21, a plurality of key grooves 32 are formed in the bottom cylinder disc 31, the key grooves 32 and the limit keys 22 are in one-to-one correspondence and are matched with each other, an annular cylinder sleeve 33 is fixed on the bottom cylinder disc 31, an annular piston 34 is slidably connected to the annular cylinder sleeve 33, a plurality of elastic elements 35 (such as disc springs) are arranged between the annular piston 34 and the bottom cylinder disc 31, and a friction unit 5 is connected to the end face of the annular cylinder sleeve 33.
The working principle of the technical scheme has the advantages that the driving unit 2 is arranged on the mounting support 1 through the floating support 21, when the braking is not performed, the annular hydraulic cylinder 3 is pressurized and contracted, under the action of the first compression elastic piece 23, the distance between the annular hydraulic cylinder 3 and the mounting support 1 is kept to be maximum, when the braking is performed, the annular hydraulic cylinder 3 is depressurized and stretched, the annular hydraulic cylinder 3 extrudes the friction unit 5, the annular hydraulic cylinder 3 slides along the floating support 21 under the action of the reaction force, the first compression elastic piece 23 is extruded, the annular hydraulic cylinder 3 is close to the mounting support 1, and the transmission shaft sleeve 24 transmits torque to the braking unit 4 through the first connecting disc 25;
When the annular hydraulic cylinder 3 is pressurized, the annular piston 34 and the annular cylinder sleeve 33 are close to each other, the annular piston 34 and the annular cylinder sleeve 33 squeeze the elastic element 35, when the annular hydraulic cylinder 3 is depressurized, the elastic element 35 releases pressure to push the annular piston 34 and the annular cylinder sleeve 33 to slide relatively, so that the annular piston 34 squeezes the friction unit 5, and then the bottom cylinder disc 31 is pushed reversely to slide relatively along the floating support 21 under the action of the reaction force, the sliding direction is ensured by the limit key 22 and the key groove 32, and the bottom cylinder disc 31 squeezes the compression elastic element I23;
The invention utilizes the floating support 21, the mounting support 1 and the annular hydraulic cylinder 3 to realize the action of the driving unit 2, the design can ensure the fixation of the disc brake, realize the floating of the braking unit 4 and the friction unit 5, ensure the stability of the braking process, and ensure the resetting of the annular hydraulic cylinder 3 on the floating support 21 by matching with the design of the first compression elastic piece 23, and simultaneously ensure the transmission of torque by matching with the design of the transmission shaft sleeve 24 and the first connecting disc 25, thereby realizing the premise of braking;
The annular hydraulic cylinder 3 realizes expansion and contraction through the annular piston 34 and the annular cylinder sleeve 33, the design can ensure pressure, meanwhile, the occupied space is small, the gravity is light, compared with the existing hydraulic mechanism, the performance of the annular hydraulic cylinder 3 is more superior, the annular hydraulic cylinder 3 adopts a reverse hydraulic design, braking is only carried out under the condition of no hydraulic pressure, the braking of a vehicle can be carried out when a hydraulic system is ensured to be in fault, meanwhile, the design of the elastic element 35 realizes the storage and utilization of hydraulic energy in the annular hydraulic cylinder 3, and the capacity utilization rate is increased.
Example 3
On the basis of embodiment 1, the braking unit 4 comprises a second connecting disc 41, the inner ring of the second connecting disc 41 is connected to the first connecting disc 25 through bolts, an axle sleeve 42 is fixed on the second connecting disc 41, the outer ring of the second connecting disc 41 is connected with a braking disc 43 through bolts, and friction units 5 are arranged on two sides of the braking disc 43.
The friction unit 5 comprises a left brake disc 51 and a right brake disc 52, a plurality of friction plates 53 are annularly fixed on the left brake disc 51 and the right brake disc 52, brake blocks 54 are fixedly arranged on the friction plates 53, a plurality of connecting blocks 55 are mounted on the left brake disc 51, the other ends of the connecting blocks 55 are connected to an annular cylinder sleeve 33, a plurality of clamping grooves 56 are formed in the right brake disc 52, the clamping grooves 56 and the connecting blocks 55 are matched with each other, the right brake disc 52 and the connecting blocks 55 slide relatively, the left brake disc 51 and the right brake disc 52 are connected through a plurality of connecting rods 57, and compression elastic pieces II 58 are sleeved on the connecting rods 57.
The working principle of the technical scheme has the advantages that the brake unit 4 is connected to the driving unit 2 through the second connecting disc 41, the brake disc 43 rotates along the driving shaft sleeve 24, when the annular hydraulic cylinder 3 is pressurized, the left brake disc 51 and the right brake disc 52 of the friction unit 5 are kept at intervals with the brake disc 43 under the action of the second compression elastic piece 58, no dragging torque exists between the left brake disc 51 and the right brake disc 52 and the brake disc 43, when the annular hydraulic cylinder 3 is depressurized, the annular hydraulic cylinder 3 pushes the right brake disc 52 to slide along the connecting block 55, the right brake disc 52 stops sliding after contacting the brake disc 43, the annular hydraulic cylinder 3 continues to stretch, then under the reaction, the annular hydraulic cylinder 3 slides along the floating support 21, and finally, the left brake disc 51 slides along the connecting rod 57 through the connecting block 55, and finally the left brake disc 51 also contacts the brake disc 43, the brake disc 54 on the friction disc 53 is respectively pushed by the pulling force and the pushing force of the annular hydraulic cylinder 3, the brake disc 43 is gradually rubbed against the brake disc 43, and the rotating speed of the brake disc 43 is gradually slowed down, and the brake disc is fed back to the driving wheel and the driving wheel is realized;
The invention utilizes the connection disc II 41 to be connected with the brake disc 43, the design can ensure that the transmission of the rotation moment is lossless and stable, the rotation speed of the brake disc 43 and the rotation speed of the driving wheel are kept consistent, the left brake disc 51 and the right brake disc 52 are connected through the connecting rod, the design can ensure that the left brake disc 51 slides on the connecting rod 57 for braking during braking, and can ensure that the left brake disc 51 and the right brake disc 52 are separated from the brake disc 43 under the action of the compression elastic piece II 58 during non-braking, so that the working condition conflict is avoided, and meanwhile, the design of the friction disc 53 and the brake disc 54 can ensure that the friction disc 53 is only damaged after the brake disc 54 is worn, and the damage to the left brake disc 51 and the right brake disc 52 is avoided.
Example 4
Based on embodiment 1, the performance monitoring unit includes a control module, a data module, a detection module and an early warning module, the detection module includes
A plurality of temperature sensors for detecting the temperatures of the brake disc 43 and the brake pads 54, which are provided on the brake disc 43 and the brake pads 54,
The mass sensor is used for detecting the mass of the whole vehicle and is arranged on the frame,
A pressure sensor for detecting the hydraulic pressure of the annular hydraulic cylinder 3, which is provided on the annular hydraulic cylinder 3,
An angular velocity sensor for detecting an angular velocity of the wheel hub 42, which is provided on the wheel hub 42;
A timing sensor for detecting an interval time of continuous braking of the disc brake, which is provided on the left brake disc 51;
An angular acceleration sensor for detecting an angular acceleration of the wheel hub 42, which is provided on the wheel hub 42;
The detection module is electrically connected with the data module, the control module is electrically connected with the data module and the early warning module, and the control module controls the early warning module to work based on the data structure of the data module.
The control module controls the early warning module based on the data result of the data module and comprises the following steps:
The method comprises the following steps that firstly, a data module calculates the current braking performance coefficient of the disc brake based on a plurality of temperature sensors, a mass sensor, a pressure sensor, an angular velocity sensor, a timing sensor and an angular acceleration sensor:
=(1);
wherein: In order to provide a coefficient of braking performance, For the coefficient of friction between the brake disc 43 and the brake pads 54,Is the detection value of the pressure sensor, and the unit is,Is the effective friction area, the unit is,An inner diameter is applied to a brake pad 54 on the brake disk 43 in units of,The brake pads 54 on the brake disc 43 act on the outer diameter in units of,Is of average radius,Is the detection value of the mass sensor, and the unit is,Is the gravity acceleration, the unit is,As the road adhesion coefficient, the adhesion coefficient of the road,Is the detection value of an angular acceleration sensor, and the unit is,In units of road surface to axle sleeve 42 radius of rotation,Is the sliding coefficient of the road surface,Is the detection value of the temperature sensor, and the unit is,The heat dissipation coefficients of the brake disc 43 and the brake block 54 are expressed in units of,Is the detection value of the angular velocity sensor, and has the unit of,Is the detection value of the timing sensor, and the unit is,For optimum operating temperature of the brake disc 43 and the brake pads 54, in units of;
Step two, data center comparisonAnd:
When (when)And when the control module starts the early warning unit to give an alarm.
The working principle and the beneficial effects of the technical scheme are that the kinetic energy of the brake disc is converted into the friction energy between the brake disc 43 and the brake block 54 when the disc brake brakes, so that a large amount of heat generated between the brake disc 43 and the brake block 54 is accumulated on the brake disc 43 and the brake block 54 when the disc brake brakes continuously, the relative friction between the brake disc 43 and the brake block 54 is influenced by temperature, the braking performance of the brake disc 43 and the brake block 54 is reduced when the temperature rises, the braking efficiency is lower after the braking performance is reduced to a certain extent, and the effective braking cannot be performed, and therefore, the braking performance coefficient of the disc brake is calculated by monitoring the heat of the disc brake;
The invention monitors the disc brake in real time by utilizing the control module, the data module, the detection module and the early warning module, ensures the braking performance of the disc brake, avoids the safety accident of the vehicle caused by the failure of the braking performance, and ensures the safety of drivers and passengers.
Example 5
On the basis of the embodiment 1-4, the cooling device comprises a disc brake 8, wherein an outdrive sleeve 24 and an axle sleeve 42 of the disc brake 8 are connected to an output shaft of a speed reducer 81 through splines, a mounting support 1 of the disc brake 8 is connected to a vehicle body through bolts, and a cooling assembly 9 is arranged on one side of the disc brake 8.
The cooling assembly 9 comprises an air inlet air channel 91, the air inlet air channel 91 is fixed on a vehicle body, the other end of the air inlet air channel 91 penetrates through and is connected with a transition air channel 92, the other end of the transition air channel 92 is connected with an output air channel 93, a compensation air channel 94 is connected to the transition air channel 92, the other end of the compensation air channel 94 is connected with a compensation fan 95, an isolation net 96 is installed at the joint of the air inlet air channel 91 and the transition air channel 92, a filter element 97 is arranged at the joint of the transition air channel 92 and the output air channel 93, a compression fan 98 is installed at the outlet end of the output air channel 93, and the air inlet air channel 91 is provided with an air inlet adjusting module 10.
The air inlet adjusting module 10 comprises an adjusting plate 101, two ends of the adjusting plate 101 are respectively hinged with an adjusting rod 102 and a pulley 103, the adjusting rod 102 is arranged on an electric rotating shaft 104, the electric rotating shaft 104 is rotatably connected to an air inlet duct 91, the pulley 103 is slidably connected to a slide way 105, the slide way 105 is fixed to the side wall of the air inlet duct 91, a stop pin 106 is arranged on the side wall of the air inlet duct 91, a groove 107 is arranged above the air inlet duct 91, and the adjusting plate 101 and the groove 107 are mutually matched.
The working principle and the beneficial effects of the technical scheme are that the disc brake 8 is connected with the output shaft of the speed reducer 81, driving torque and braking torque are transmitted, the cooling component 9 dissipates heat generated by braking of the disc brake 8, when cooling is not needed, relatively flowing air generated in the running process of a vehicle passes through the air inlet air channel 91, when cooling is needed, the air inlet adjusting module 10 works to block the flowing air passing through the air inlet air channel 91, the electric rotating shaft 104 rotates to drive the adjusting rod 102 to rotate, the adjusting rod 102 pulls the adjusting plate 101 to slide forwards, the pulley 103 on the adjusting plate 101 advances along the slideway 105 until the adjusting rod 102 is blocked by the blocking pin 106, so that the adjusting plate 101 blocks the air inlet air channel 91, the flowing air enters the transition air channel 92 under the action of the adjusting plate 101, the isolating net 96 blocks a large volume object in the air flow, the air flow continuously enters the air outlet air channel 93, the filter element 97 on the air outlet air channel 93 filters dust in the air flow, and outputs the air flow to dissipate heat of the disc brake 8 through the compression fan 98, and when the relatively air flow is insufficient, the compensation fan 95 starts to work, and the air flow is output through the compensation air channel 94;
The invention utilizes the cooling component 9 to radiate the heat of the disc brake 8, the design can effectively increase the radiating rate of the disc brake 8, reduce the failure risk of the disc brake 8, and the design of the air inlet duct 91 can ensure that the air flow does not enter the transition duct 92 when cooling is not needed, and ensure the air flow to enter through the air inlet adjusting module 10 when cooling is needed, and the design of the compensating fan 95 and the compensating duct 94 can ensure the cooling of the disc brake 8 when the relative air flow is insufficient, and meanwhile, the air inlet adjusting module 10 adjusts the air inflow through the adjusting plate 101, the design structure occupies small space, and has higher flexibility by matching with the design of the adjusting lever 102 and the pulley 103.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
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| CN202410865732.0A CN118757521B (en) | 2024-06-28 | 2024-06-28 | Disc brakes and brake systems |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410865732.0A CN118757521B (en) | 2024-06-28 | 2024-06-28 | Disc brakes and brake systems |
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| Publication Number | Publication Date |
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| CN118757521A CN118757521A (en) | 2024-10-11 |
| CN118757521B true CN118757521B (en) | 2025-03-04 |
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| CN202410865732.0A Active CN118757521B (en) | 2024-06-28 | 2024-06-28 | Disc brakes and brake systems |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115750625A (en) * | 2022-11-15 | 2023-03-07 | 中车戚墅堰机车车辆工艺研究所有限公司 | Semi-floating type full-disc brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4982280B2 (en) * | 2007-07-17 | 2012-07-25 | 本田技研工業株式会社 | Brake device |
| CN101649877A (en) * | 2009-08-27 | 2010-02-17 | 三一重机有限公司 | Complete-disc brake |
| WO2018112876A1 (en) * | 2016-12-23 | 2018-06-28 | 强海胜 | Disk dual-brake mechanism and brake system |
| CN110821981B (en) * | 2019-11-28 | 2021-10-01 | 河北埃克斯福动力科技有限公司 | Full-disc brake for heavy vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115750625A (en) * | 2022-11-15 | 2023-03-07 | 中车戚墅堰机车车辆工艺研究所有限公司 | Semi-floating type full-disc brake |
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