WO2024000283A1 - 机械执行装置 - Google Patents

机械执行装置 Download PDF

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Publication number
WO2024000283A1
WO2024000283A1 PCT/CN2022/102409 CN2022102409W WO2024000283A1 WO 2024000283 A1 WO2024000283 A1 WO 2024000283A1 CN 2022102409 W CN2022102409 W CN 2022102409W WO 2024000283 A1 WO2024000283 A1 WO 2024000283A1
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WO
WIPO (PCT)
Prior art keywords
ball screw
assembly
gear
mechanism assembly
pressure
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Application number
PCT/CN2022/102409
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English (en)
French (fr)
Inventor
靳彪
张永生
刘栋豪
杨维妙
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2022/102409 priority Critical patent/WO2024000283A1/zh
Publication of WO2024000283A1 publication Critical patent/WO2024000283A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • 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

Definitions

  • Embodiments of the present application relate to the field of vehicles, and more specifically, to a mechanical execution device.
  • the vehicle's braking system is a system that applies a certain braking force to the wheels of the vehicle to force it to brake to a certain extent.
  • the function of the braking system is to force a moving vehicle to decelerate or even stop in accordance with the requirements of the driver or controller, or to enable a stopped vehicle to park stably under various road conditions (for example, on a slope), or to make the vehicle park steadily under various road conditions (for example, on a slope).
  • the speed of vehicles traveling downhill remains stable.
  • the current brake system types of passenger cars mainly include electro-hydraulic brake (EHB), electro-mechanical brake (electro-mechanical brake) and EHB and EMB hybrid brake systems.
  • EHB electro-hydraulic brake
  • EMB electro-mechanical brake
  • EHB and EMB hybrid brake systems For the EHB system, four-wheel braking is mainly realized through hydraulic pressure between the brake pedal and the actuator; for the EMB system, four-wheel braking is realized completely through electronic signal transmission between the brake pedal and the actuator;
  • EHB and EMB hybrid braking systems the two front wheels can realize the braking function through hydraulic pressure, and the two rear wheels can realize the braking function through electrical signals transmitted to the actuators.
  • EMB mechanical actuators especially disc brakes, have the disadvantages of complex self-locking structures and high costs.
  • the embodiment of the present application provides a mechanical execution device, which has a simple structure, low manufacturing cost and is easy to implement.
  • a mechanical execution device in a first aspect, includes: a self-locking mechanism assembly 1, wherein the self-locking mechanism assembly 1 is configured to be connected with the power mechanism assembly 2, and the self-locking mechanism assembly 1 is used for Controls the braking power transmission of the power mechanism assembly 2; the self-locking mechanism assembly 1 includes a solenoid valve 11, a lever 12 and a ratchet 13; the solenoid valve 11 is used to control the rotation of the ratchet 13 through the lever 12.
  • the solenoid valve can achieve precise control of the self-locking function.
  • the pawl is cleverly used as one end of the lever, which effectively reduces the detachment of the pawl.
  • the force required by the ratchet groove allows the solenoid valve to use smaller current to drive the first mechanical rod to extend.
  • the self-locking mechanism component in the embodiment of the present application has a simple structure and low manufacturing cost.
  • the first connecting portion 121 of the lever 12 is configured to be connected to the first mechanical rod 111 of the solenoid valve 11
  • the ratchet 122 of the lever 12 is configured to be connected to the first mechanical rod 111 of the solenoid valve 11
  • the ratchet 13 is snap-fitted.
  • the mechanical execution device further includes a pressure-building mechanism assembly 4, which includes an anti-turnover mechanism assembly 41 and a piston assembly 42, which includes Piston 421, ball screw nut 422 and ball screw 423, wherein the ball screw nut 422 is nested on the ball screw 423, and the anti-overturning mechanism assembly 41 is used to make the ball screw nut 422 move along the first
  • the first direction makes linear motion in the piston 421 , and the first direction is parallel to the central axis of the ball screw 423 .
  • the anti-overturn pin in the anti-overturn mechanism assembly in the pressure-building mechanism assembly effectively ensures that the ball screw nut in the piston assembly moves forward and backward in a direction parallel to the anti-overturn pin.
  • the structure is simple and the cost is lower. .
  • the mechanical execution device further includes a caliper assembly 3 , the pressure-building mechanism assembly 4 is configured to be connected to the caliper assembly 3 , and the pressure-building mechanism assembly 4 is used to The caliper assembly 3 applies or releases the braking power.
  • the anti-overturn mechanism assembly 41 includes an anti-overturn pin 411 and an anti-overturn pin positioning member.
  • the anti-overturn pin 411 is used to connect the caliper assembly 3 and the piston assembly. 4.
  • the anti-overturn pin positioning member is used to position and fix the anti-overturn pin 411.
  • the anti-turnover pin positioning member is an anti-turnover pin positioning ring 412
  • the caliper assembly 3 includes a caliper housing 32
  • the anti-turnover pin positioning ring 412 is provided with a positioning recess.
  • Groove 4121 the piston 421 is provided with a first fitting groove 4212
  • the ball screw nut 422 is provided with a second fitting groove 4222, wherein the first end 4111 of the anti-overturning pin 411 is inserted into the caliper housing 32, and the anti-overturning pin 411 is inserted into the caliper housing 32.
  • the second end 4112 of the flip pin 411 passes through the positioning groove 4121, the first fitting groove 4212 and the second fitting groove 4222.
  • the first end 4221 of the ball screw nut 422 resists the inner wall surface of the piston 421 .
  • the ball screw nut in the piston assembly is configured to be in direct contact with the piston, effectively transmitting braking power to the piston, while having a simpler structure and lower cost. Low.
  • the first end of the ball screw nut 422 has a chamfer, and the chamfer forms a first contact surface 4221 of the first end, and the inner surface of the piston 421
  • the wall surface is the second contact surface 4211.
  • the first contact surface 4221 is configured to be in direct contact with the second contact surface 4211.
  • the first contact surface 4221 and the second contact surface The faces are parallel.
  • an exhaust groove is provided between the first contact surface 4221 and the second contact surface 4211 .
  • the power mechanism component 2 includes a transmission mechanism component 21
  • the transmission mechanism component 21 includes a connecting shaft 212 , wherein the self-locking mechanism component 1 and the power mechanism component 2 is centrally fixedly connected through the connecting shaft 212 and the ratchet wheel 13.
  • the power mechanism assembly 2 is configured to be connected in parallel with the pressure-building mechanism assembly 4, and the power mechanism assembly 2 is used to transmit the braking power to the pressure-building mechanism assembly 4.
  • the power mechanism assembly 2 includes a transmission mechanism assembly 21, the transmission mechanism assembly 21 includes a connecting shaft 212, and the pressure building mechanism assembly 4 includes a ball screw 423, wherein , the ball screw 423 is connected to the transmission mechanism assembly 21 , and the connecting shaft 212 and the ball screw 423 are arranged in parallel.
  • the pressure-building motor and pressure-building mechanism components are arranged in parallel through the transmission mechanism component, and the axial size is small, which is more conducive to in-car layout and saves space.
  • the transmission mechanism component of the gear transmission plays the role of decelerating and increasing torque.
  • the transmission mechanism assembly 21 further includes a first gear 211, a second gear 213, a planetary disk 214, a planetary gear 215, a ring gear 216 and a third gear 217.
  • Pressure-building motor 2 wherein the ring gear 216, the planet gear 215, the planet plate 214, and the second gear 213 are nested on the pressure-building motor 22 through the connecting shaft 212 in sequence; the second gear 213
  • the first gear 211 is configured to be in parallel meshing connection with the third gear 217.
  • the central axes of the second gear 213, the first gear 211 and the third gear 217 are in pairs. Parallel; the power mechanism assembly 2 and the pressure-building mechanism assembly 4 are connected through the third gear 217 and the ball screw 423.
  • a mechanical execution device in a second aspect, includes: a pressure-building mechanism assembly 4.
  • the pressure-building mechanism assembly (4) includes an anti-overturning mechanism assembly (41) and a piston assembly (42).
  • the piston The assembly (42) includes a piston (421), a ball screw nut (422) and a ball screw (423), wherein the ball screw nut (422) is nested on the ball screw (423), so
  • the anti-overturning mechanism assembly (41) is used to make the ball screw nut (422) move linearly in the piston (421) along a first direction, and the first direction and the ball screw (423) 's central axis is parallel.
  • the anti-overturn pin in the anti-overturn mechanism component of the pressure-building mechanism assembly effectively ensures that the ball screw nut in the piston assembly moves forward and backward in a direction parallel to the anti-overturn pin.
  • the structure is simple and the cost is lower.
  • the anti-overturn mechanism assembly 41 includes an anti-overturn pin 411 and an anti-overturn pin positioning member, and the anti-overturn pin 411 connects the caliper assembly 3 and the piston assembly 4, The anti-overturn pin positioning member is used to position and fix the anti-overturn pin 411.
  • the anti-overturn pin positioning member is an anti-overturn pin positioning ring 412
  • the caliper assembly 3 includes a caliper housing 32
  • the anti-overturn pin positioning ring 412 is provided with a positioning recess.
  • Groove 4121 the piston 421 is provided with a first fitting groove 4212
  • the ball screw nut 422 is provided with a second fitting groove 4222, wherein the first end 4111 of the anti-overturning pin 411 is inserted into the caliper housing 32, and the anti-overturning pin 411 is inserted into the caliper housing 32.
  • the second end 4112 of the flip pin 411 passes through the positioning groove 4121, the first fitting groove 4212 and the second fitting groove 4222.
  • the mechanical execution device further includes: a self-locking mechanism component 1, a power mechanism component 2 and a caliper component 3; wherein the self-locking mechanism component 1 is configured with the The power mechanism component 2 is connected, and the self-locking mechanism component 1 is used to control the braking power transmission of the power mechanism component 2; the power mechanism component 2 is configured to be connected in parallel with the pressure-building mechanism component 4, and the power mechanism component 2 is connected with In order to transmit the braking power to the pressure-building mechanism component 4; the pressure-building mechanism component 4 is configured to be connected with the caliper assembly 3, and the pressure-building mechanism component 4 is used to apply or release the braking power to the caliper assembly 3 .
  • a mechanical execution device in a third aspect, includes: a pressure-building mechanism assembly 4.
  • the pressure-building mechanism assembly 4 includes a piston assembly 42.
  • the piston assembly 42 includes a piston 421, a ball screw nut 422 and a ball. Screw 423, wherein the ball screw nut 422 is nested on the ball screw 423. When the ball screw nut moves to its maximum stroke, the first end 4221 of the ball screw nut 422 resists the piston 421. inner wall surface.
  • the first end of the ball screw nut 422 has a chamfer, and the chamfer forms a first contact surface 4221 of the first end, and the inner surface of the piston 421
  • the wall surface is the second contact surface 4211.
  • the first contact surface 4221 is configured to be in direct contact with the second contact surface 4211.
  • the first contact surface 4221 and the second contact surface The faces are parallel.
  • an exhaust groove is provided between the first contact surface 4221 and the second contact surface 4211.
  • the mechanical execution device further includes: a self-locking mechanism component 1, a power mechanism component 2 and a caliper component 3; wherein the self-locking mechanism component 1 is configured with the The power mechanism component 2 is connected, and the self-locking mechanism component 1 is used to control the braking power transmission of the power mechanism component 2; the power mechanism component 2 is configured to be connected in parallel with the pressure-building mechanism component 4, and the power mechanism component 2 is connected with In order to transmit the braking power to the pressure-building mechanism component 4; the pressure-building mechanism component 4 is configured to be connected with the caliper assembly 3, and the pressure-building mechanism component 4 is used to apply or release the braking power to the caliper assembly 3 .
  • a braking system in a fourth aspect, includes an electronic control unit and a mechanical execution device in the first aspect or any possible implementation of the first aspect, or includes an electronic control unit and the second aspect. Or the mechanical execution device in any possible implementation of the second aspect, or a mechanical execution device including an electronic control unit and the third aspect or any possible implementation of the third aspect.
  • the mechanical actuator in this application can be applied to disc brakes, pure electromechanical braking systems, or the electromechanical braking part of EHB and EMB hybrid braking systems.
  • a vehicle including a braking system as in the fourth aspect.
  • Figure 1 is a three-dimensional view of a mechanical execution device provided by an embodiment of the present application.
  • Figure 2 is a schematic plan view of a self-locking mechanism component provided by an embodiment of the present application.
  • Figure 3 is an assembly three-dimensional view of a self-locking mechanism component, a power mechanism component and a pressure-building mechanism component provided by an embodiment of the present application;
  • Figure 4 is a cross-sectional view of the bottom view A-A in Figure 1 provided by the embodiment of the present application;
  • Figure 5 is a partially exploded schematic diagram of an anti-turning mechanism assembly and a piston assembly provided by an embodiment of the present application;
  • FIG. 6 is another cross-sectional view of the bottom view A-A in FIG. 1 provided by the embodiment of the present application.
  • connection should be understood in a broad sense.
  • connection or integral connection; it can be mechanical connection, electrical connection or mutual communication; it can be direct connection, or indirect connection through an intermediary, it can be internal connection of two elements or interaction of two elements relation.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
  • ABS anti-lock braking system
  • TCS traction control system
  • ESP electronic stability control program
  • ACC adaptive cruise control
  • other functions are gradually integrated into the braking system, and more and more additional mechanisms need to be installed on the braking line.
  • EMB has gradually become the development trend of braking systems due to its advantages of simple structure, small size, rapid electrical signal transmission, and easy implementation of functions such as ABS, TCS, ESP, and ACC.
  • the mechanical structure of the EMB system has the following problems: First, the spring self-locking mechanism has many parts, a complex structure, and the self-locking function is realized by automatically adjusting the gap through the spring, which has low reliability. Second, the motor and power mechanism are arranged in series, which is not conducive to vehicle matching and installation due to the large axial length. Third, the parking brake uses self-locking screws and nuts, which has low transmission efficiency. Fourth, although the self-locking mechanism in the mechanical actuator of the EMB system is realized through a solenoid valve and a ratchet, currently, the self-locking function is realized through the solenoid valve and the ratchet, which also requires the cooperation of other complex mechanical structures, and, More current is needed.
  • embodiments of the present application propose a mechanical execution device.
  • the mechanical actuator in the embodiment of the present application can be applied to disc brakes in the braking system, can be applied to pure electromechanical braking systems, and can also be applied to electromechanical braking in EHB and EMB hybrid braking systems. moving part.
  • the embodiments of the present application do not limit this.
  • Figure 1 is a three-dimensional view of a mechanical execution device provided by an embodiment of the present application.
  • Figure 1 (a) is a left side view of the mechanical actuator
  • Figure 1 (b) is a front view of the mechanical actuator
  • Figure 1 (c) is a bottom view of the mechanical actuator.
  • the mechanical actuator includes a self-locking mechanism component 1 , a power mechanism component 2 , a caliper component 3 and a pressure-building mechanism component 4 .
  • the pressure-building mechanism assembly 4 is not visible in the three views of FIG. 1 , it is not shown in FIG. 1 .
  • FIG. 4 and the following description of the pressure-building mechanism assembly 4 please refer to FIG. 4 and the following description of the pressure-building mechanism assembly 4 .
  • the self-locking mechanism component 1 is configured to be connected to the power mechanism component 2; the power mechanism component 2 is configured to be connected in parallel with the pressure-building mechanism component 4; the pressure-building mechanism component 4 is configured to be connected to the caliper assembly 3.
  • the self-locking mechanism component 1 is used to control the power transmission of the power mechanism component 2, that is, when parking or driving without braking, the self-locking mechanism component 1 does not activate the self-locking function, that is, the power mechanism component 2
  • the braking power is transmitted to the pressure-building mechanism component 4; during driving braking, the self-locking mechanism component 1 turns on the self-locking function, that is, the braking power of the power mechanism component 2 cannot be transmitted to the pressure-building mechanism component 4.
  • the power mechanism assembly 2 is used to transmit braking power to the pressure-building mechanism assembly 4
  • the pressure-building mechanism assembly 4 is used to apply or release braking power to the caliper assembly 3 .
  • Figure 2 is a schematic plan view of a self-locking mechanism component provided by an embodiment of the present application.
  • the self-locking mechanism assembly 1 includes a solenoid valve 11 , a lever 12 and a ratchet 13 .
  • the solenoid valve 11 is used to control the rotation of the ratchet 13 through the lever 12 .
  • the first connecting portion 122 of the lever 12 is configured to be connected to the first mechanical rod 111 of the solenoid valve 11
  • the ratchet 121 of the lever 12 is configured to be snap-connected to the ratchet wheel 13 .
  • the first connecting portion 122 of the lever 12 can be configured to be connected to the solenoid valve through a nut and a screw, or through other means.
  • the embodiment of the present application does not limit the connection method of the first connecting portion 122 of the lever 12 .
  • the solenoid valve 11 During driving braking, that is, when performing a braking operation while driving, the solenoid valve 11 is energized, and the first mechanical rod 111 of the solenoid valve 11 extends along a second direction, where the second direction is as shown in Figure 2 In direction A, the first connecting portion 122 of the lever 12 connected to the first mechanical lever 111 moves in the second direction.
  • the pawl 121 of the lever 12 moves in the opposite direction of the extending direction of the first mechanical lever 111, thereby disengaging the pawl 121 from the groove of the ratchet wheel 13, thereby transmitting the braking force.
  • the solenoid valve can achieve precise control of the self-locking function.
  • the pawl is cleverly used as one end of the lever, effectively reducing The force required for the pawl to disengage from the ratchet groove allows the solenoid valve to use smaller current to drive the first mechanical rod to extend.
  • the self-locking mechanism component in the embodiment of the present application has a simple structure and low manufacturing cost.
  • the self-locking mechanism component provided by the embodiment of the present application can be independently applied to a mechanical actuator to realize the self-locking function when parking and driving without braking.
  • Figure 3 is an assembly three-dimensional view of a self-locking mechanism component, a power mechanism component and a pressure-building mechanism component provided by an embodiment of the present application.
  • the power mechanism assembly 2 includes a transmission mechanism assembly 21
  • the transmission mechanism assembly 21 includes a connecting shaft 212
  • the pressure-building mechanism assembly 3 includes a ball screw 423 .
  • the ball screw 423 is connected to the transmission mechanism assembly 21, and the connecting shaft 212 and the ball screw 423 are arranged in parallel.
  • the transmission mechanism component can be driven by gears or other transmission methods, which are not limited in the embodiments of the present application.
  • Figure 3 is a detailed description of one form of gear transmission.
  • the transmission mechanism assembly 21 includes a first gear 211, a connecting shaft 212, a second gear 213, a planetary disk 214, a planetary gear 215, a ring gear 216 and a third gear 217.
  • the power mechanism assembly 2 also includes a pressure-building motor 22, and the pressure-building motor 22 is used to generate braking power.
  • the transmission mechanism assembly 21 is configured to be connected to the pressure-building motor 22. During the pressure-building process, the transmission mechanism assembly 21 is used to transmit the pressure-building braking power generated by the pressure-building motor 22 to the pressure-building mechanism assembly 4, thereby improving the braking force.
  • Caliper 31 applies braking force to clamp the brake disc.
  • the ring gear 216, planet gear 215, planet plate 214 and second gear 213 of the transmission mechanism assembly 21 are nested on the pressure-building motor 22 through the connecting shaft 212.
  • the pressure-building motor 22 moves along the third direction Make a rotational motion together, and the third direction is the B direction shown in Figure 3.
  • the second gear 213 and the first gear 211 are arranged and connected to each other in parallel with the third gear 217, and all three are in a vertical direction of the first direction, and the first direction is parallel to the connecting axis 212, where the first direction is as shown in FIG. C direction shown in 3.
  • the second gear 213 is configured to be in parallel meshing connection with the first gear 211
  • the first gear 211 is configured to be in parallel meshing connection with the gears of the third gear 217
  • the second gear 213 , the first gear 211 and the third gear 217 are in parallel meshing connection.
  • the central axes are parallel in pairs.
  • the pressure-building motor and the pressure-building mechanism assembly are arranged in parallel through the transmission mechanism assembly, and the axial size is small, which is more conducive to in-vehicle layout and saves space.
  • the transmission mechanism components of the gear transmission play the role of decelerating and increasing torque.
  • the power mechanism assembly 2 and the self-locking mechanism assembly 1 are connected through the connecting shaft 212 and the ratchet wheel 13. Specifically, the power mechanism assembly 2 and the self-locking mechanism assembly 1 are centrally fixedly connected through the connecting shaft 212 and the ratchet wheel 13.
  • the pawl 121 is disengaged from the groove of the ratchet wheel 13, and the braking power generated by the pressure-building motor 22 can be transmitted to the pressure-building mechanism assembly 4 through the transmission mechanism assembly 21, thereby performing pressure-building braking.
  • the pawl 121 is engaged in the groove of the ratchet wheel 13 to realize the self-locking function of the self-locking mechanism assembly 1 and no braking force is applied to the brake caliper.
  • Figure 4 is a cross-sectional view of the bottom view A-A in Figure 1 provided by the embodiment of the present application.
  • the pressure-building mechanism assembly 4 includes an anti-overturning mechanism assembly 41 and a piston assembly 42.
  • the piston assembly includes a piston 421, a ball screw nut 422 and a ball screw 423.
  • the anti-overturning mechanism assembly 41 is used to make the piston assembly 42
  • the ball screw nut 422 in the ball screw nut 422 moves linearly in a first direction, and the first direction is parallel to the central axis of the ball screw screw 423.
  • the anti-turning mechanism assembly 41 includes an anti-turning pin 411 and an anti-turning pin positioning member, such as an anti-turning pin positioning ring 412.
  • the anti-overturn pin 411 is used to connect the caliper assembly 3 and the piston assembly 4.
  • the anti-overturn pin positioning ring 412 is used to position and fix the anti-overturn pin 411.
  • the embodiment of the present application does not limit the specific form of the anti-overturning pin positioning member.
  • FIG. 5 is a partially exploded schematic diagram of an anti-turning mechanism assembly and a piston assembly provided by an embodiment of the present application.
  • the caliper assembly 3 includes a caliper housing 32 into which the first end 4111 of the anti-rollover pin 411 is inserted (as shown in FIG. 4 ).
  • the anti-overturn pin positioning ring 412 is provided with a positioning groove 4121
  • the piston 421 is provided with a first matching groove 4212
  • the ball screw nut 422 is provided with a second matching groove 4222.
  • the second end 4112 of the anti-overturning pin 411 passes through the positioning groove 4121, the first fitting groove 4212 and the second fitting groove 4222 (as shown in Figure 5).
  • the number of anti-overturning pins and the corresponding number of matching grooves shown in Figure 5 are only for illustration and do not limit the number of anti-overturning pins in the embodiment of the present application.
  • the number of pins is not limited.
  • the number of anti-overturning pins in the anti-overturning mechanism assembly shown in FIG. 5 is 3.
  • the anti-overturn pin in the anti-overturn mechanism assembly in the pressure-building mechanism assembly effectively ensures that the ball screw nut in the piston assembly moves forward and backward in a direction parallel to the anti-overturn pin.
  • the structure is simple and low-cost. lower.
  • anti-rollover mechanism assembly provided by the embodiment of the present application can be independently applied to a mechanical actuator to achieve the function of constraining the ball screw nut in the piston assembly to make linear motion in the piston.
  • FIG. 6 is another cross-sectional view of the bottom view A-A in FIG. 1 provided by the embodiment of the present application.
  • the piston assembly 42 includes a piston 421 , a ball screw nut 422 and a ball screw 423 .
  • the ball screw nut is nested on the ball screw 423 to form a whole, and is nested into the inner cavity of the piston 421 .
  • the ball screw nut 422 moves to the maximum stroke, that is, when the ball screw nut 422 rotates toward the piston 421 to the inner wall of the piston, the first end of the ball screw nut 422 resists the inner wall of the piston 421, that is, the ball screw
  • the first end of the lever nut 422 is configured to be in direct contact with the inner wall surface of the piston 421 .
  • the first end of the ball screw nut 422 has a chamfer, and the first contact surface 4221 of the first end formed by the chamfer is parallel to the second contact surface 4211 of the piston 421, and when the ball screw nut 422 moves to At the maximum stroke, the first end of the ball screw nut 422 is directly connected through the first contact surface 4221 and the second contact surface 4211 of the piston 421 (as shown in FIG. 6 ).
  • first contact surface of the ball screw nut 422 and the second contact surface of the piston 421 depend on the shape of the inner wall of the piston 421.
  • other specific forms are possible.
  • the application examples do not limit this.
  • the power mechanism assembly 2 and the pressure-building mechanism assembly 4 are connected through the third gear 217 of the transmission mechanism assembly 21 and the ball screw 423.
  • the pressure-building motor 22 of the power structure assembly 2 generates braking power, which is transmitted to the ball screw 423 through the third gear 217 of the transmission mechanism assembly 21.
  • the ball screw The rotation of the screw 423 drives the ball screw nut 422 to move linearly.
  • the ball screw nut 422 directly applies pressure to the piston 421, and the piston 421 applies pressure to the brake caliper 31, causing the brake caliper 31 to clamp the brake disc.
  • the ball screw nut in the piston assembly when the ball screw nut moves to the maximum stroke, the ball screw nut in the piston assembly is configured to be in direct contact with the piston, which effectively transmits braking power to the piston and has a simpler structure. Lower cost.
  • connection method in which the ball screw nut and the piston are in direct contact when the ball screw nut and the piston are in direct contact when the ball screw nut moves to the maximum stroke can be independently applied to the mechanical actuator to achieve effective transmission of braking power. Function given to the piston.
  • an exhaust groove is provided between the first contact surface 4221 of the first end of the ball screw nut 422 and the second contact surface 4211 of the piston 421.
  • the exhaust groove is used to discharge air to avoid the first contact surface 4221.
  • the separation force caused by the vacuum surface formed between the second contact surface 4211 and the second contact surface 4211 is too large.
  • the exhaust groove 4223 may be located on the first contact surface 4221 formed by the chamfering of the first end of the ball screw nut 422, as shown in FIG. 6 .
  • the exhaust groove may also be located on the second contact surface 4211 of the piston 421.
  • the exhaust groove can also be formed on both the first contact surface 4221 formed by the chamfering of the first end of the ball screw nut 422 and the second contact surface 4211 of the piston 421 .
  • the ball screw nut moves to the maximum stroke position, thereby causing the brake caliper to apply braking force to the brake disc through the piston; during the pressure decompression process, the ball screw nut moves too far away from the inner wall of the piston. movement, causing the brake caliper to release braking force on the brake disc.
  • the braking system includes the above-mentioned mechanical actuator and an electronic control unit (ECU).
  • the electronic control unit is used to control the mechanical actuator of the braking system.
  • the embodiment of the present application does not limit the number of electronic control units.
  • the electronic control unit may be another controller through which the mechanical actuator of the braking system is compatiblely controlled, that is, the other controller has a functional module for controlling the mechanical actuator of the braking system.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Mechanically-Actuated Valves (AREA)
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Abstract

一种机械执行装置，机械执行装置包括自锁机构组件（1），自锁机构组件（1）被配置与动力机构组件（2）连接，自锁机构组件（1）用于控制动力机构组件（2）的制动动力传输；自锁机构组件（1）包括电磁阀（11）、杠杆（12）和棘轮（13），电磁阀（11）用于通过杠杆（12）控制棘轮（13）的转动，自锁机构组件（1）结构简单，制作成本低。

Description

机械执行装置 技术领域
本申请实施例涉及车辆领域，并且更具体地，涉及一种机械执行装置。
背景技术
车辆的制动系统是通过对车辆的车轮施加一定的制动力，从而对其进行一定程度的强制制动的系统。制动系统作用是使行驶中的车辆按照驾驶员或者控制器的要求进行强制减速甚至停车，或者使已停驶的车辆在各种道路条件下(例如，在坡道上)稳定驻车，或者使下坡行驶的车辆速度保持稳定。
当前乘用车的制动系统类型主要有电子液压制动系统(electro-hydraulic brake，EHB)、电子机械制动系统(electro-mechanical brake)以及EHB和EMB混合制动系统。对于EHB系统而言，制动踏板和执行器之间主要通过液压实现了四轮制动；对于EMB系统而言，制动踏板和执行器之间完全通过电子信号传输实现了四轮制动；对于EHB和EMB混合制动系统而言，两个前轮可以通过液压实现制动功能，两个后轮可以通过电信号传输到执行器实现制动功能。
目前，对于EMB的机械执行器，尤其是盘式制动器，存在自锁结构复杂、成本高的缺陷。
因此，如何降低EMB机械制动器的自锁结构的复杂度以及成本，是个亟待解决的问题。
发明内容
本申请实施例提供一种机械执行装置，该机械执行装置的结构简单，并且制作成本低易于实现。
第一方面，提供了一种机械执行装置，该机械执行装置包括：自锁机构组件1，其中，该自锁机构组件1被配置与该动力机构组件2连接，该自锁机构组件1用于控制该动力机构组件2的制动动力传输；该自锁机构组件1包括电磁阀11、杠杆12和棘轮13；该电磁阀11用于通过该杠杆12控制该棘轮13的转动。
本申请中，通过电磁阀、杠杆、棘轮形成的自锁机构组件，电磁阀可以实现对自锁功能的精准控制，与此同时，巧妙地将棘爪作为杠杆的一端，有效减少了棘爪脱离棘轮沟槽需要的力，进而使得电磁阀可以用更小的电流来驱动第一机械杆伸出。除此以外，本申请实施例中的自锁机构组件结构简单，制作成本低。
结合第一方面，在第一方面的某些实现方式中，该杠杆12的第一连接部121被配置与该电磁阀11的第一机械杆111连接，该杠杆12的棘爪122被配置与该棘轮13卡嵌连接。
结合第一方面，在第一方面的某些实现方式中，该机械执行装置还包括建压机构组件 4，该建压机构组件4包括防翻转机构组件41和活塞组件42，该活塞组件42包括活塞421、滚珠丝杠螺母422和滚珠丝杠423，其中，该滚珠丝杠螺母422嵌套在该滚珠丝杠423上，该防翻转机构组件41用于使得该滚珠丝杠螺母422沿第一方向在该活塞421中做直线运动，该第一方向和该滚珠丝杠423的中轴线平行。
在本申请中，建压机构组件中的防翻转机构组件中的防翻转销钉有效地保证活塞组件中的滚珠丝杠螺母沿平行于防翻转销钉的方向前后移动的同时，结构简单，成本更低。
结合第一方面，在第一方面的某些实现方式中，该机械执行装置还包括卡钳组件3，该建压机构组件4被配置与该卡钳组件3连接，该建压机构组件4用于对该卡钳组件3施加或释放该制动动力。
结合第一方面，在第一方面的某些实现方式中，该防翻转机构组件41包括防翻转销钉411和防翻转销钉定位件，该防翻转销钉411用于连接该卡钳组件3和该活塞组件4，该防翻转销钉定位件用于定位和固定防翻转销钉411。
结合第一方面，在第一方面的某些实现方式中，该防翻转销钉定位件为防翻转销钉定位环412，该卡钳组件3包括卡钳壳体32，该防翻转销钉定位环412设置定位凹槽4121，该活塞421设置第一配合凹槽4212，该滚珠丝杠螺母422设置第二配合凹槽4222，其中，该防翻转销钉411的第一端4111插入该卡钳壳体32中，该防翻转销钉411的第二端4112贯穿该定位凹槽4121、该第一配合凹槽4212和该第二配合凹槽4222。
结合第一方面，在第一方面的某些实现方式中，当该滚珠丝杠螺母运动到最大行程时，该滚珠丝杠螺母422的第一端4221顶住该活塞421的内壁面。
在本申请中，当滚珠丝杠螺母运动到最大行程时，活塞组件中的滚珠丝杠螺母被配置与活塞直接接触连接，在有效将制动动力传递给活塞的同时，结构更简单，成本更低。
结合第一方面，在第一方面的某些实现方式中，该滚珠丝杠螺母422的第一端具有倒角，该倒角形成该第一端的第一接触面4221，该活塞421的内壁面为第二接触面4211，在该滚珠丝杠螺母运动到最大行程时，该第一接触面4221被配置与该第二接触面4211直接接触连接，该第一接触面4221和该第二接触面4211平行。
结合第一方面，在第一方面的某些实现方式中，该第一接触面4221和该第二接触面4211之间设置有排气槽。
在本申请中，当滚珠丝杠螺母运动到最大行程时，活塞组件中的滚珠丝杠螺母和活塞的接触面之间存在排气槽，可以有利于空气排出，在建压过程中，有利于制动卡钳夹紧制动盘，在减压过程中，排气槽可以防止接触面形成真空状，造成分离力过大，从而有利于制动卡钳松开制动盘。
结合第一方面，在第一方面的某些实现方式中，该动力机构组件2包括传动机构组件21，该传动机构组件21包括连接轴212，其中，该自锁机构组件1和该动力机构组件2通过该连接轴212和该棘轮13中心固定连接。
结合第一方面，在第一方面的某些实现方式中，该动力机构组件2被配置与该建压机构组件4并行布置连接，该动力机构组件2用于将该制动动力传输给该建压机构组件4。
结合第一方面，在第一方面的某些实现方式中，该动力机构组件2包括传动机构组件21，该传动机构组件21包括连接轴212，该建压机构组件4包括滚珠丝杠423，其中，该滚珠丝杠423连接在该传动机构组件21上，该连接轴212和该滚珠丝杠423平行布置。
在本申请中，建压电机和建压机构组件通过传动机构组件，实现并行布置，轴向尺寸小，更加有利于车内布置，节省空间。另外，齿轮传动的传动机构组件起到减速增扭的作用
结合第一方面，在第一方面的某些实现方式中，该传动机构组件21还包括第一齿轮211、第二齿轮213、行星盘214、行星齿轮215、齿圈216和第三齿轮217和建压电机2，其中，该齿圈216、该行星齿轮215、该行星盘214、该第二齿轮213依次通过该连接轴212嵌套在该建压电机22上；该第二齿轮213被配置与该第一齿轮211平行啮合连接，该第一齿轮211被配置与第三齿轮217平行啮合连接，该第二齿轮213、该第一齿轮211和该第三齿轮217的中心轴两两平行；该动力机构组件2和该建压机构组件4，通过该第三齿轮217和该滚珠丝杠423连接。
第二方面，提供了一种机械执行装置，该机械执行装置包括：建压机构组件4，该建压机构组件(4)包括防翻转机构组件(41)和活塞组件(42)，所述活塞组件(42)包括活塞(421)、滚珠丝杠螺母(422)和滚珠丝杠(423)，其中，所述滚珠丝杠螺母(422)嵌套在所述滚珠丝杠(423)上，所述防翻转机构组件(41)用于使得所述滚珠丝杠螺母(422)沿第一方向在所述活塞(421)中做直线运动，所述第一方向和所述滚珠丝杠(423)的中轴线平行。
本申请中，建压机构组件中的防翻转机构组件中的防翻转销钉有效地保证活塞组件中的滚珠丝杠螺母沿平行于防翻转销钉的方向前后移动的同时，结构简单，成本更低。
结合第二方面，在第二方面的某些实现方式中，该防翻转机构组件41包括防翻转销钉411和防翻转销钉定位件，该防翻转销钉411连接该卡钳组件3和该活塞组件4，该防翻转销钉定位件用于定位和固定防翻转销钉411。
结合第二方面，在第二方面的某些实现方式中，该防翻转销钉定位件为防翻转销钉定位环412，该卡钳组件3包括卡钳壳体32，该防翻转销钉定位环412设置定位凹槽4121，该活塞421设置第一配合凹槽4212，该滚珠丝杠螺母422设置第二配合凹槽4222，其中，该防翻转销钉411的第一端4111插入该卡钳壳体32中，该防翻转销钉411的第二端4112贯穿该定位凹槽4121、该第一配合凹槽4212和该第二配合凹槽4222。
结合第二方面，在第二方面的某些实现方式中，该机械执行装置还包括：自锁机构组件1、动力机构组件2和卡钳组件3；其中，该自锁机构组件1被配置与该动力机构组件2连接，该自锁机构组件1用于控制该动力机构组件2的制动动力传输；该动力机构组件2被配置与该建压机构组件4并行布置连接，该动力机构组件2用于将该制动动力传输给该建压机构组件4；该建压机构组件4被配置与该卡钳组件3连接，该建压机构组件4用于对该卡钳组件3施加或释放该制动动力。
第三方面，提供了一种机械执行装置，该机械执行装置包括：建压机构组件4，该建压机构组件4包括活塞组件42，该活塞组件42包括活塞421、滚珠丝杠螺母422和滚珠丝杠423，其中，该滚珠丝杠螺母422嵌套在该滚珠丝杠423上，当该滚珠丝杠螺母运动到最大行程时，该滚珠丝杠螺母422的第一端4221顶住该活塞421的内壁面。
在本申请中，当滚珠丝杠螺母运动到最大行程时，活塞组件中的滚珠丝杠螺母和活塞直接接触连接，在有效将制动动力传递给活塞的同时，结构更简单，成本更低。
结合第三方面，在第三方面的某些实现方式中，该滚珠丝杠螺母422的第一端具有倒 角，该倒角形成该第一端的第一接触面4221，该活塞421的内壁面为第二接触面4211，在该滚珠丝杠螺母运动到最大行程时，该第一接触面4221被配置与该第二接触面4211直接接触连接，该第一接触面4221和该第二接触面4211平行。
结合第三方面，在第三方面的某些实现方式中，该第一接触面4221和该第二接触面4211之间设置有排气槽。
在本申请中，当滚珠丝杠螺母运动到最大行程时，活塞组件中的滚珠丝杠螺母和活塞的接触面之间存在排气槽，可以有利于空气排出，在建压过程中，有利于制动卡钳夹紧制动盘，在减压过程中，排气槽可以防止接触面形成真空状，造成分离力过大，有利于制动卡钳松开制动盘。
结合第三方面，在第三方面的某些实现方式中，该机械执行装置还包括：自锁机构组件1、动力机构组件2和卡钳组件3；其中，该自锁机构组件1被配置与该动力机构组件2连接，该自锁机构组件1用于控制该动力机构组件2的制动动力传输；该动力机构组件2被配置与该建压机构组件4并行布置连接，该动力机构组件2用于将该制动动力传输给该建压机构组件4；该建压机构组件4被配置与该卡钳组件3连接，该建压机构组件4用于对该卡钳组件3施加或释放该制动动力。
第四方面，提供了一种制动系统，该制动系统包括电子控制单元和第一方面或第一方面的任一可能的实现方式中的机械执行装置，或者包括电子控制单元和第二方面或第二方面的任一可能的实现方式中的机械执行装置，或者包括电子控制单元和第三方面或第三方面的任一可能的实现方式中的机械执行装置。
应理解，本申请中的机械执行装置可以应用于盘式制动器，可以应用于纯电子机械制动系统，也可以应用于EHB和EMB混合制动系统中的电子机械制动部分。
第五方面，提供了一种车辆，该车辆包括如第四方面中的制动系统。
附图说明
图1是本申请实施例提供的一种机械执行装置的三视图；
图2是本申请实施例提供的一种自锁机构组件平面示意图；
图3是本申请实施例提供的一种自锁机构组件、动力机构组件和建压机构组件的装配三维视图；
图4本申请实施例提供的一种图1中仰视图A-A的剖面图；
图5是本申请实施例提供的一种防翻转机构组件和活塞组件的部分爆炸示意图；
图6是本申请实施例提供的另一种图1中仰视图A-A的剖面图。
具体实施方式
下面详细描述本申请的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要说明的是，除非另有说明，“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、 以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请的描述中，需要理解的是，术语“前”、“后”、“内”、“外”、“横向”等指示的方位或位置关系为基于安装的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
在本申请的描述中，需要说明的是，术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本申请中在申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。本申请的说明书和权利要求书或上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序或主次关系。
在本申请中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本申请所描述的实施例可以与其它实施例相结合。
目前，EHB系统的技术经过长时间发展，已经很成熟，并且广泛地应用于各大厂商的车辆中。随着对制动性能要求的不断提高，防抱死制动系统(anti-lock braking system,ABS)、牵引力控制系统(traction control system,TCS)、电子稳定性控制程序(electronic stability program,ESP)、自适应巡航控制(adaptive cruise control,ACC)等功能逐渐融入到制动系统中，越来越多的附加机构需要安装在制动线路上。对于EHB系统而言，整个制动系统的结构越来越复杂，同时也增加了液压回路漏液的风险。因此，EMB由于其具有结构简单、体积小、电信号传输迅速、易于实现ABS、TCS、ESP和ACC等功能等优点，逐渐成为制动系统的发展趋势。
目前，EMB系统机械结构存在如下问题：第一，弹簧自锁机构零部件多、结构复杂并且通过弹簧自动调整间隙实现自锁功能，可靠性低。第二，电机和动力机构串联布置，由于轴向长度大，不利于整车匹配和安装。第三，驻车制动采用自锁螺丝螺母，传递效率低。第四，虽然有EMB系统的机械执行装置中的自锁机构通过电磁阀和棘轮来实现，但是，目前通过电磁阀和棘轮来实现自锁功能，还需要其他复杂的机械结构配合完成，并且， 需要更大的电流。
因此，为了解决上述问题，本申请实施例提出了一种机械执行装置。应理解，本申请实施例中的机械执行装置可以应用于制动系统中的盘式制动器，可以应用于纯电子机械制动系统，也可以应用于EHB和EMB混合制动系统中的电子机械制动部分。本申请实施例对此不作限制。
下面将结合图1至图6，具体说明本申请实施例的机械执行装置。
图1是本申请实施例提供的一种机械执行装置的三视图。图1的(a)是机械执行装置的左视图，图1的(b)是机械执行装置的正视图，图1的(c)是机械执行装置的仰视图。
如图1的(c)所示，机械执行装置包括自锁机构组件1、动力机构组件2、卡钳组件3和建压机构组件4。应理解，由于建压机构组件4在图1的三视图中不可见，因此，未在图1中示出，详情请参见图4以及下文中关于建压机构组件4的描述。
其中，自锁机构组件1被配置与动力机构组件2连接；动力机构组件2被配置与建压机构组件4并行布置连接；建压机构组件4被配置与卡钳组件3连接。
应理解，自锁机构组件1用于控制动力机构组件2的动力传输，也就是在驻车时或者在行车无制动时，自锁机构组件1不开启自锁功能，即动力机构组件2的制动动力传输给建压机构组件4；在行车制动时，自锁机构组件1开启自锁功能，即动力机构组件2的制动动力无法传输给建压机构组件4。
应理解，动力机构组件2用于将制动动力传输给建压机构组件4，建压机构组件4用于对卡钳组件3施加或释放制动动力。
图2是本申请实施例提供的一种自锁机构组件平面示意图。
其中，如图2所示，自锁机构组件1包括电磁阀11、杠杆12和棘轮13，电磁阀11用于通过杠杆12控制棘轮13的转动。具体地，杠杆12的第一连接部122被配置与电磁阀11的第一机械杆111连接，杠杆12的棘爪121被配置与棘轮13卡嵌连接。
具体地，杠杆12的第一连接部122可以被配置与电磁阀通过螺母和螺杆连接，或者通过其他方式连接，本申请实施例对杠杆12的第一连接部122的连接方式不作限定。
如图2所示，在驻车时或者在无行车制动时，电磁阀11不通电，电磁阀11的第一机械杆111出于回缩状态，此时，杠杆12的棘爪121在棘轮13的沟槽中，实现制动系统的自锁功能。
在行车制动时，也就是在行车过程中进行制动操作时，电磁阀11通电，电磁阀11的第一机械杆111沿第二方向伸出，其中，第二方向为图2中所示的A方向，和第一机械杆111连接的杠杆12的第一连接部122沿第二方向移动。与此同时，在支点14的作用下，杠杠12的棘爪121沿第一机械杆111伸出方向的反方向移动，从而将棘爪121从棘轮13的沟槽中脱离，从而将制动力传递给动力机构组件2。
在本申请实施例中，通过电磁阀、杠杆、棘轮形成的自锁机构组件，电磁阀可以实现对自锁功能的精准控制，与此同时，巧妙地将棘爪作为杠杆的一端，有效减少了棘爪脱离棘轮沟槽需要的力，进而使得电磁阀可以用更小的电流来驱动第一机械杆伸出。除此以外，本申请实施例中的自锁机构组件结构简单，制作成本低。
应理解，本申请实施例提供的自锁机构组件可以单独适用于机械执行装置中，以实现 驻车和行车无制动时的自锁的功能。
图3是本申请实施例提供的一种自锁机构组件、动力机构组件和建压机构组件的装配三维视图。
如图3所示，动力机构组件2包括传动机构组件21，传动机构组件21包括连接轴212，建压机构组件3包括滚珠丝杠423。滚珠丝杠423连接在传动机构组件21上，连接轴212和滚珠丝杠423平行布置。
其中，传动机构组件可以通过齿轮传动，还可以有其他传动方式，本申请实施例对此不作限制。图3为齿轮传动的一种形式具体说明。
作为一种可能的实现方式，传动机构组件21包括，第一齿轮211、连接轴212、第二齿轮213、行星盘214、行星齿轮215、齿圈216和第三齿轮217。
其中，动力机构组件2还包括建压电机22，建压电机22用于产生制动动力。传动机构组件21被配置与建压电机22连接，在建压过程中，传动机构组件21用于将建压电机22产生的建压制动动力传递给建压机构组件4，从而对制动卡钳31施加制动力，以夹紧制动盘。
具体地，传动机构组件21的齿圈216、行星齿轮215、行星盘214和第二齿轮213通过连接轴212嵌套在建压电机22上，随着建压电机22沿着第三方向一起做旋转运动，其中第三方向为图3所示的B方向。
其中，第二齿轮213、第一齿轮211被配置与第三齿轮217相互平行布置连接，三者均处于第一方向的垂直方向，第一方向平行于连接轴212，其中，第一方向为图3所示的C方向。
具体地，第二齿轮213被配置与第一齿轮211平行啮合连接，第一齿轮211被配置与第三齿轮217的齿轮平行啮合连接，第二齿轮213、第一齿轮211和第三齿轮217的中心轴两两平行。当第二齿轮213随着建压电机22沿第二方向一起做旋转运动时，第二齿轮213将制动动力沿第一方向的垂直方向传递给第三齿轮217，从而将制动动力传递给建压机构组件4，进而对制动卡钳施加或释放制动力。
在本申请实施例中，建压电机和建压机构组件通过传动机构组件，实现并行布置，轴向尺寸小，更加有利于车内布置，节省空间。另外，齿轮传动的传动机构组件起到减速增扭的作用。
除此以外，动力机构组件2和自锁机构组件1通过连接轴212和棘轮13来连接，具体地，动力机构组件2和自锁机构组件1通过连接轴212和棘轮13中心固定连接。当行车制动时，棘爪121从棘轮13的沟槽中脱离，建压电机22产生的制动动力可以通过传动机构组件21传递到建压机构组件4中，从而进行建压制动。当驻车制动或者行车无制动时，棘爪121卡接在棘轮13的沟槽中，实现自锁机构组件1的自锁功能，不对制动卡钳施加制动力。
图4本申请实施例提供的一种图1中仰视图A-A的剖面图。
如图4所示，建压机构组件4包括防翻转机构组件41和活塞组件42，活塞组件包括活塞421、滚珠丝杠螺母422和滚珠丝杠423，防翻转机构组件41用于使得活塞组件42中的滚珠丝杠螺母422沿第一方向做直线运动，第一方向和滚珠丝杠423的中轴线平行。
其中，防翻转机构组件41包括防翻转销钉411和防翻转销钉定位件，例如防翻转销 钉定位环412。防翻转销钉411用于连接卡钳组件3和活塞组件4。防翻转销钉定位环412用于定位和固定防翻转销钉411。本申请实施例对防翻转销钉定位件的具体形式不作限定。
图5是本申请实施例提供的一种防翻转机构组件和活塞组件的部分爆炸示意图。
具体地，卡钳组件3包括卡钳壳体32，防翻转销钉411的第一端4111插入卡钳壳体32中(如图4所示)。防翻转销钉定位环412设置定位凹槽4121，活塞421设置第一配合凹槽4212，滚珠丝杠螺母422设置第二配合凹槽4222。防翻转销钉411的第二端4112贯穿定位凹槽4121、第一配合凹槽4212和第二配合凹槽4222(如图5所示)。
应理解，图5所示的防翻转销钉个数和对应的配合凹槽个数仅为示意作用，并不对本申请实施例中防翻转销钉的个数起限定作用，本申请实施例对防翻转销钉的个数不作限定，例如，图5中所示的的防翻转机构组件中的防翻转销钉个数为3。
在本申请实施例中，建压机构组件中的防翻转机构组件中的防翻转销钉有效地保证活塞组件中的滚珠丝杠螺母沿平行于防翻转销钉的方向前后移动的同时，结构简单，成本更低。
应理解，本申请实施例提供的防翻转机构组件可以单独适用于机械执行装置中，以实现对活塞组件中滚珠丝杠螺母有约束地在活塞中做直线运动的功能。
图6是本申请实施例提供的另一种图1中仰视图A-A的剖面图。
如图6所示，活塞组件42包括活塞421、滚珠丝杠螺母422以及滚珠丝杠423，滚珠丝杠螺母嵌套在滚珠丝杠423上形成一个整体，嵌套入活塞421的内腔中。当滚珠丝杠螺母422运动到最大行程时，也就是滚珠丝杠螺母422朝着活塞421旋转到活塞内壁面时，滚珠丝杠螺母422的第一端顶住活塞421的内壁面，即滚珠丝杠螺母422的第一端被配置与活塞421的内壁面直接接触连接。
具体地，滚珠丝杠螺母422的第一端具有倒角，倒角形成的第一端的第一接触面4221和活塞421的第二接触面4211平行，并且，当滚珠丝杠螺母422运动到最大行程时，滚珠丝杠螺母422的第一端通过第一接触面4221和活塞421的第二接触面4211直接接触连接(如图6所示)。
应理解，滚珠丝杠螺母422的第一接触面和活塞421的第二接触面的具体形式，取决于活塞421内壁的形状，例如，如图6所示的，还可以有其他具体形式，本申请实施例对此不作限制。
动力机构组件2和建压机构组件4，通过传动机构组件21的第三齿轮217和滚珠丝杠423连接。
在行车制动时，动力结构组件2的建压电机22产生制动动力，通过传动机构组件21的第三齿轮217，传递给滚珠丝杠423，在防翻转机构组件41的约束下，滚珠丝杠423旋转带动滚珠丝杠螺母422做直线运动，滚珠丝杠螺母422向活塞421直接施加压力，活塞421给制动卡钳31施加压力，使得制动卡钳31夹紧制动盘。
在本申请实施例中，当滚珠丝杠螺母运动到最大行程时，活塞组件中的滚珠丝杠螺母被配置与活塞直接接触连接，在有效将制动动力传递给活塞的同时，结构更简单，成本更低。
应理解，本申请实施例提供的滚珠丝杠螺母在运动到最大行程时，滚珠丝杠螺母和活塞直接接触连接的连接方式，可以单独适用于机械执行装置中，以实现有效将制动动力传 递给活塞的功能。
可选地，滚珠丝杠螺母422的第一端的第一接触面4221和活塞421的第二接触面4211之间设置有排气槽，排气槽用于排出空气，避免第一接触面4221和第二接触面4211之间形成真空面造成的分离力过大。
作为一种可能的实现方式，排气槽4223可以位于滚珠丝杠螺母422的第一端的倒角形成的第一接触面4221上，如图6所示。
作为一种可能的实现方式，排气槽还可以位于活塞421的第二接触面4211上。
作为一种可能的实现方式，排气槽还可以同时为于滚珠丝杠螺母422的第一端的倒角形成的第一接触面4221和活塞421的第二接触面4211上。
应理解，本申请实施例对排气槽的个数、排气槽的具体形状、排气槽的分布情况都不作限制。
在本申请实施例中，当滚珠丝杠螺母运动到最大行程时，活塞组件中的滚珠丝杠螺母和活塞的接触面之间存在排气槽，可以有利于空气排出，在建压过程中，有利于制动卡钳夹紧制动盘，在减压过程中，排气槽可以防止接触面形成真空状，造成分离力过大，有利于制动卡钳松开制动盘。
示例性地，在建压过程中，滚珠丝杠螺母运动至最大行程位置，从而通过活塞使得制动卡钳对制动盘施加制动力；在减压过程中，滚珠丝杠螺母超远离活塞内壁方向运动，从而使得制动卡钳释放对制动盘的制动力。
制动系统包括上述机械执行装置和电子控制单元(electronic control unit，ECU)，电子控制单元用于控制制动系统的机械执行装置。本申请实施例对电子控制单元的个数不作限制。
可选地，电子控制单元可以为其他控制器，通过其他控制器对制动系统的机械执行装置进行兼容控制，也就是其他控制器中具有控制制动系统的机械执行装置的功能模块。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (15)

  1. 一种机械执行装置，其特征在于，包括自锁机构组件(1)：
    其中，所述自锁机构组件(1)被配置与动力机构组件(2)连接，所述自锁机构组件(1)用于控制所述动力机构组件(2)的制动动力传输；
    所述自锁机构组件(1)包括电磁阀(11)、杠杆(12)和棘轮(13)；
    所述电磁阀(11)用于通过所述杠杆(12)控制所述棘轮(13)的转动。
  2. 如权利要求1所述的机械执行装置，其特征在于，所述杠杆(12)的第一连接部(121)被配置与所述电磁阀(11)的第一机械杆(111)连接，所述杠杆(12)的棘爪(122)被配置与所述棘轮(13)卡嵌连接。
  3. 如权利要求1或2所述的机械执行装置，其特征在于，所述机械执行装置还包括建压机构组件(4)；
    所述建压机构组件(4)包括防翻转机构组件(41)和活塞组件(42)，所述活塞组件(42)包括活塞(421)、滚珠丝杠螺母(422)和滚珠丝杠(423)，
    其中，所述滚珠丝杠螺母(422)嵌套在所述滚珠丝杠(423)上，所述防翻转机构组件(41)用于使得所述滚珠丝杠螺母(422)沿第一方向在所述活塞(421)中做直线运动，所述第一方向和所述滚珠丝杠(423)的中轴线平行。
  4. 如权利要求3所述的机械执行装置，其特征在于，所述机械执行装置还包括卡钳组件(3)，所述建压机构组件(4)被配置与所述卡钳组件(3)连接，所述建压机构组件(4)用于对所述卡钳组件(3)施加或释放所述制动动力。
  5. 如权利要求4所述的机械执行装置，其特征在于，
    所述防翻转机构组件(41)包括防翻转销钉(411)和防翻转销钉定位件，
    所述防翻转销钉(411)用于连接所述卡钳组件(3)和所述活塞组件(4)，
    所述防翻转销钉定位件用于定位和固定所述防翻转销钉(411)。
  6. 如权利要求5所述的机械执行装置，其特征在于，所述防翻转销钉定位件为防翻转销钉定位环(412)，所述卡钳组件(3)包括卡钳壳体(32)，所述防翻转销钉定位环(412)设置定位凹槽(4121)，所述活塞(421)设置第一配合凹槽(4212)，所述滚珠丝杠螺母(422)设置第二配合凹槽(4222)，
    其中，所述防翻转销钉(411)的第一端(4111)插入所述卡钳壳体(32)中，所述防翻转销钉(411)的第二端(4112)贯穿所述定位凹槽(4121)、所述第一配合凹槽(4212)和所述第二配合凹槽(4222)。
  7. 如权利要求3至6中任一项所述的机械执行装置，其特征在于，当所述滚珠丝杠螺母运动到最大行程时，所述滚珠丝杠螺母(422)的第一端(4221)顶住所述活塞(421)的内壁面。
  8. 如权利要求7所述的机械执行装置，其特征在于，
    所述滚珠丝杠螺母(422)的第一端具有倒角，所述倒角形成所述第一端的第一接触面(4221)，所述活塞(421)的内壁面为第二接触面(4211)，
    在所述滚珠丝杠螺母运动到最大行程时，所述第一接触面(4221)被配置与所述第二 接触面(4211)直接接触连接，所述第一接触面(4221)和所述第二接触面(4211)平行。
  9. 如权利要求8所述的机械执行装置，其特征在于，所述第一接触面(4221)和所述第二接触面(4211)之间设置有排气槽。
  10. 如权利要求1至9任一项所述的机械执行装置，其特征在于，所述动力机构组件(2)包括传动机构组件(21)，所述传动机构组件(21)包括连接轴(212)，
    其中，所述自锁机构组件(1)和所述动力机构组件(2)通过所述连接轴(212)和所述棘轮(13)中心固定连接。
  11. 如权利要求3至10任一项所述的机械执行装置，其特征在于，所述动力机构组件(2)被配置与所述建压机构组件(4)并行布置连接，所述动力机构组件(2)用于将所述制动动力传输给所述建压机构组件(4)。
  12. 如权利要求11所述的机械执行装置，其特征在于，所述动力机构组件(2)包括传动机构组件(21)，所述传动机构组件(21)包括连接轴(212)，所述建压机构组件(4)包括滚珠丝杠(423)，
    其中，所述滚珠丝杠(423)连接在所述传动机构组件(21)上，所述连接轴(212)和所述滚珠丝杠(423)平行布置。
  13. 如权利要求12所述的机械执行装置，其特征在于，所述传动机构组件(21)还包括第一齿轮(211)、第二齿轮(213)、行星盘(214)、行星齿轮(215)、齿圈(216)和第三齿轮(217)和建压电机(2)，
    其中，所述齿圈(216)、所述行星齿轮(215)、所述行星盘(214)、所述第二齿轮(213)依次通过所述连接轴(212)嵌套在所述建压电机(22)上；
    所述第二齿轮(213)被配置与所述第一齿轮(211)平行啮合连接，所述第一齿轮(211)被配置与所述第三齿轮(217)平行啮合连接，所述第二齿轮(213)、所述第一齿轮(211)和所述第三齿轮(217)的中心轴两两平行；
    所述动力机构组件(2)和所述建压机构组件(4)，通过所述第三齿轮(217)和所述滚珠丝杠(423)连接。
  14. 一种制动系统，其特征在于，所述制动系统包括如权利要求1至13任一项所述的机械执行装置和电子控制单元，所述电子控制单元用于控制所述机械执行装置。
  15. 一种车辆，其特征在于，所述车辆包括如权利要求14所述的制动系统。
PCT/CN2022/102409 2022-06-29 2022-06-29 机械执行装置 WO2024000283A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003042199A (ja) * 2001-07-31 2003-02-13 Tokico Ltd 電動ブレーキ装置
CN101660580A (zh) * 2008-08-29 2010-03-03 日立汽车系统株式会社 电动盘式制动器
CN102518710A (zh) * 2011-10-27 2012-06-27 奇瑞汽车股份有限公司 一种半储能式电子机械制动器以及汽车
CN204870983U (zh) * 2014-07-21 2015-12-16 现代摩比斯株式会社 电子驻车制动装置
CN110657177A (zh) * 2018-06-29 2020-01-07 上海茵索汽车科技有限公司 一种电机驱动的车辆用制动器动力驱动装置
CN111619535A (zh) * 2020-06-02 2020-09-04 芜湖伯特利汽车安全系统股份有限公司 电液制动卡钳及车辆制动系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003042199A (ja) * 2001-07-31 2003-02-13 Tokico Ltd 電動ブレーキ装置
CN101660580A (zh) * 2008-08-29 2010-03-03 日立汽车系统株式会社 电动盘式制动器
CN102518710A (zh) * 2011-10-27 2012-06-27 奇瑞汽车股份有限公司 一种半储能式电子机械制动器以及汽车
CN204870983U (zh) * 2014-07-21 2015-12-16 现代摩比斯株式会社 电子驻车制动装置
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