CN220930014U - Electric brake caliper structure with motor vertically arranged - Google Patents
Electric brake caliper structure with motor vertically arranged Download PDFInfo
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- CN220930014U CN220930014U CN202322480757.2U CN202322480757U CN220930014U CN 220930014 U CN220930014 U CN 220930014U CN 202322480757 U CN202322480757 U CN 202322480757U CN 220930014 U CN220930014 U CN 220930014U
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Abstract
The utility model discloses an electronic brake caliper structure with a motor vertically arranged. The motor is arranged outside the pliers body and is perpendicular to the pliers body; one end of the motor is connected with one end of the speed reducing mechanism, the other end of the speed reducing mechanism is synchronously connected with a rotating piece in the screw rod piston assembly, and the speed reducing mechanism is transmitted and connected to the rotating piece of the screw rod piston assembly from the radial side; the parking lock mechanism is disposed in the vicinity of and connected to a motor shaft of the motor for locking the motor shaft of the motor from rotating. The utility model can realize rapid braking and parking control in compact space, has compact volume, does not need a large torque and a large motor, reduces cost, improves efficiency, lightens system weight, improves braking performance and has excellent economic benefit.
Description
Technical Field
The utility model relates to an electronic brake caliper structure, in particular to an electronic brake caliper structure with a motor vertically arranged.
Background
The traditional braking system has the advantages that the brake fluid is needed to be used as a braking force transmission medium, the brake pipeline is needed to be used as a braking fluid carrier, the brake fluid and the brake pipeline are not needed, the structure is simple, the response time is short, the four-wheel independent braking can be realized, and the like.
Disclosure of utility model
Aiming at the problems of complex structure, complex assembly process, heavy weight and the like of the traditional brake system, the utility model provides a wire-control type electronic brake caliper structure which has the advantages of reduced overall cost, material saving, high assembly efficiency and improved performance.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The utility model comprises a clamp body, a motor and a screw rod piston assembly;
The motor is arranged outside the pliers body and is perpendicular to the cylinder hole of the pliers body in the axial direction;
The device also comprises a speed reducing mechanism, wherein one end of the motor is connected with one end of the speed reducing mechanism, the other end of the speed reducing mechanism is synchronously connected with a rotating piece in the screw rod piston assembly, and the speed reducing mechanism is transmitted and connected to the rotating piece of the screw rod piston assembly from the radial side, so that the space of the clamp body is fully utilized, the structural reliability is improved, and the stability of braking motion is improved;
the parking lock mechanism is arranged near and connected with the motor shaft of the motor and used for locking the motor shaft of the motor to rotate.
In the utility model, a motor drives a speed reducing mechanism, the speed reducing mechanism drives a ball screw piston assembly, the ball screw piston assembly converts rotation into linear motion, the piston is pushed, and the piston pushes a friction plate to realize service braking; the motor is arranged non-coaxially with the clamp body, and a parking locking mechanism is arranged to realize a parking function.
The position of the speed reducing mechanism is arranged between the motor and the screw piston assembly, and the speed reducing mechanism transmits and connects the driving force of the motor to a rotating piece in the screw piston assembly from the side of the screw piston assembly.
A gear groove for accommodating the speed reducing mechanism is arranged at the side of the cylinder hole of the clamp body, and the gear groove is radially communicated with the cylinder hole of the clamp body through a communication part;
A transmission gear which belongs to a speed reducing mechanism and is synchronously and rotatably connected with a motor shaft is arranged in a gear groove, a rotary gear is synchronously sleeved on a rotary piece of a screw rod piston assembly in a clamp body cylinder hole, a connecting line of the transmission gear and the rotary gear is positioned in the radial direction of the clamp body cylinder hole, and the transmission gear and the rotary gear are in meshed connection at a communicating position, so that the speed reducing mechanism is used for transmitting power to the rotary piece of the screw rod piston assembly from the side.
The rotating gear is coaxially and fixedly sleeved on the middle part of the rotating piece of the screw rod piston assembly, and the rotating piece and the rotating gear form an integrated structure.
Meanwhile, a pressure sensor for detecting braking force is arranged at the end part of the rotating piece of the screw rod piston assembly, and the pressure sensor and the rotating piece of the screw rod piston assembly are coaxially arranged.
The clamp body is provided with a step through hole at the position where the pressure sensor is arranged, the step through hole is provided with a step facing the screw rod piston assembly, one end of the pressure sensor is propped against the step at the step through hole arranged on the clamp body, and the other end of the pressure sensor is propped against a rotating piece of the screw rod piston assembly.
And a circuit board is arranged at one end of the clamp body and is respectively and electrically connected with the motor and the pressure sensor, and the pressure sensor feeds back the detected braking force to the circuit board so as to be used for controlling the motor to work.
The speed reducing mechanism adopts a multi-stage gear transmission structure.
The speed reducing mechanism comprises a gear six, a gear five, a gear four, a gear three, a gear two and a gear one, wherein the gear six is synchronously and rotationally sleeved on a motor shaft of a motor, the gear one is synchronously and rotationally sleeved on a rotating piece of the screw rod piston assembly, the gear six and the gear five are bevel gears and are in meshed connection, the gear five and the gear four are coaxially and fixedly connected, the gear four and the gear three are meshed, the gear three and the gear two are synchronously and rotationally connected, and the gear two and the gear one are meshed.
The parking locking mechanism comprises a ratchet wheel, a pawl, a torsion spring and an electromagnet, wherein the ratchet wheel is coaxially and fixedly sleeved on a motor shaft of the motor, the pawl is arranged beside the periphery of the ratchet wheel, one end of the pawl is close to the ratchet wheel and is used for being connected with the ratchet wheel, the electromagnet is arranged beside the other end of the pawl, and the end part of the electromagnet is used for being in pushing connection with the other end of the pawl.
When the electromagnet is in a retracted condition, the pawl is engaged with the ratchet teeth of the ratchet wheel, so that the ratchet wheel cannot rotate to be in a locking state.
The gear six and the ratchet wheel adopt the same gear.
The screw piston assembly adopts a ball screw pair or a roller screw pair.
The screw rod piston assembly comprises a piston, a ball screw and a wave washer retainer ring; the piston is arranged in a cylinder hole of the pliers body, one end of the ball screw extends into the piston hole of the piston, a nut is sleeved outside the ball screw in a rolling connection manner through a ball and a thread groove, and the nut is arranged in the piston hole of the piston and limited to rotate only; the ball screw is used as a rotating piece of the screw piston assembly, and the other end of the ball screw extends out of a piston hole of the piston.
The piston hole of the piston is provided with a clamp spring groove on the inner peripheral surface far away from the cylinder hole of the clamp body, and the wave washer and the check ring are arranged in the clamp spring groove.
The motor adopts a brushless motor.
The motor provided by the utility model is only used for service braking, and is not used for parking braking. The parking brake is implemented by an additionally provided parking lock mechanism.
In the prior art, the power of a motor is axially transmitted to a rotating part of a screw rod piston assembly from the tail part of a clamp body through a speed reducing mechanism, so that the problems, defects and defects that the gravity center is deviated to the tail part, the axial size is large, the loading is difficult, the dragging is influenced and the like exist in arrangement.
In the scheme, the power of the motor is transmitted to the rotating piece of the screw rod piston assembly from the radial side through the speed reducing mechanism, meanwhile, the pressure sensor is arranged at the axial end part of the rotating piece of the screw rod piston assembly, and the position into which the original power is transmitted is arranged for the pressure sensor, so that the gravity center can be adjusted in a forward mode, the axial size of the brake caliper is reduced, the assembly of a real vehicle is facilitated, meanwhile, the arrangement can enable the whole surface of the pressure sensor to detect the clamping force, the gravity center is transferred and adjusted, and the precision is improved.
According to the utility model, the rotating gear originally arranged at the rear end part of the screw rod piston assembly rotating piece is arranged in the middle of the screw rod piston assembly rotating piece, so that the gravity center of the whole structure moves forward to be close to the brake disc, and the dragging moment can be obviously reduced;
Meanwhile, the power source of the rotating part of the screw rod piston assembly comes from the rotating gear sleeved in the middle of the rotating part, and is not a gear at the end part, so that the whole structure of the screw rod piston assembly is firmer and more reliable, the relation between the rotating motion of the rotating part and the axial motion of the piston is tighter, the linking efficiency is higher, and the braking transmission motion is reliable.
The utility model simultaneously sets the brushless motor and the circuit board, removes the hydraulic braking structure, can realize the improvement of the efficiency of service braking and has high response speed. Meanwhile, the cost is reduced, and the pollution caused by the brake fluid is eliminated.
The beneficial effects of the utility model are as follows:
the utility model has the advantages of reduced cost, improved efficiency, reduced weight of the system and improved braking performance.
The utility model is more suitable for the automatic driving function, can realize the quick response time through the wire control, has short braking distance, can realize the anti-lock function, the vehicle body stabilizing function and other braking functions, and improves the braking reliability.
The utility model is beneficial to integration and standardization of the chassis of the vehicle and reduces the manufacturing cost of the whole vehicle.
Drawings
The utility model is further described with reference to the drawings and detailed description which follow:
FIG. 1 is a schematic diagram of the overall structure assembly of the present utility model;
FIG. 2 is a schematic view of a portion of the structure assembly of the present utility model;
FIG. 3 is a block diagram of a screw piston assembly of the present utility model;
fig. 4 is a view of a parking lock mechanism of the present utility model;
FIG. 5 is a block diagram of a motor according to the present utility model;
Fig. 6 is a structural view of a reduction mechanism according to the present utility model.
In the figure: the parking locking mechanism comprises a motor (1), a parking locking mechanism (2), a ratchet wheel (2-1), a pawl (2-2), a torsion spring (2-3), an electromagnet (2-4), a speed reducing mechanism (3), a first gear (3-1), a second gear (3-2), a third gear (3-3), a fourth gear (3-4), a fifth gear (3-5), a sixth gear (3-6), a pressure sensor (4), a clamp body (5), a gear groove (5-1), a clamp body step through hole (5-2), a communicating part (5-3), a screw piston assembly (6), a retainer ring (6-1), a wave washer (6-3), a ball screw (6-4), a piston (6-5), a bracket (7), a friction plate (8), a bearing (9), a plane bearing (10) and a circuit board (11).
Detailed Description
The utility model will be described in further detail with reference to the accompanying drawings and specific examples.
As shown in fig. 1, the specific structure comprises a clamp body 5, a bracket 7, a friction plate 8, a motor 1 and a screw rod piston assembly 6; the inside of the caliper body 5 is not provided with a hydraulic braking structure, the caliper body 5 is arranged on the support 7, specifically, the caliper body 5 is connected with the support 7 through a pin, the screw rod piston assembly 6 is arranged in a cylinder hole of the caliper body 5, the screw rod piston assembly 6 is in contact connection with the friction plate 8, the friction plate 8 is arranged on a groove of the support 7, and the friction plate 8 is used for being in friction connection with a brake disc of a disc brake.
The motor 1 adopts a brushless motor, and the motor 1 is arranged outside the clamp body 5 and is arranged perpendicular to the cylinder hole axial direction of the clamp body 5; the motor 1 of the utility model is arranged in a vertical mode and is connected with the circuit board 3, in particular, the motor 1 is arranged outside the clamp body 5, and the axial direction of a motor shaft of the motor is arranged vertically to the axial direction of a cylinder hole of the clamp body 5.
In specific implementation, the speed reducing mechanism 3 is arranged, one end of the motor 1 is connected with one end of the speed reducing mechanism 3, the other end of the speed reducing mechanism 3 is synchronously connected with a rotating piece in the screw piston assembly 6, the speed reducing mechanism 3 is used for connecting power transmission to the rotating piece of the screw piston assembly 6 from the radial side, and one side of the screw piston assembly 6 is in contact connection with one side of the friction plate 8, so that the space of the pliers body is fully utilized, the structural reliability is improved, and the stability of braking motion is improved.
In particular, a parking lock mechanism 2 having a ratchet structure is provided, and the parking lock mechanism 2 is disposed in the vicinity of the motor shaft of the motor 1 and connected to the motor shaft of the motor 1 for locking the motor shaft of the motor 1 from rotating.
The position of the reduction mechanism 3 is arranged between the motor 1 and the screw piston assembly 6, and the reduction mechanism 3 transmits and connects the driving force of the motor 1 from the side of the screw piston assembly 6 to the rotating member in the screw piston assembly 6.
As shown in fig. 2, a gear groove 5-1 for accommodating a part of the reduction mechanism 3 is provided on a side of the cylinder hole of the caliper body 5, and the gear groove 5-1 communicates radially with the cylinder hole of the caliper body 5 through a communication portion 5-3 in a radial/lateral direction.
A transmission gear which belongs to the speed reducing mechanism 3 and is connected with a motor shaft of the motor 1 in a synchronous rotation mode is arranged in the gear groove 5-1, the transmission gear can be connected with the motor shaft of the motor 1 in a synchronous rotation mode through a gear pair, a rotary gear is sleeved on a rotary piece of the screw rod piston assembly 6 in a cylinder hole of the clamp body 5 in a synchronous mode, the transmission gear and the rotary gear are located on the same plane, a connecting line of the transmission gear and the rotary gear is located in the radial direction of the cylinder hole of the clamp body 5, the transmission gear and the rotary gear are in meshed connection at a position 5-3 of the connecting point, and therefore the speed reducing mechanism 3 is enabled to transmit power to the rotary piece of the screw rod piston assembly 6 from the radial direction/side.
The middle part of the rotating piece of the screw rod piston assembly 6 is coaxially and fixedly sleeved with a rotating gear, and the rotating piece and the rotating gear form an integrated structure. And the weight of the rotating gear is much greater than the weight of the pressure sensor 4.
Specifically, the side surface of the cylinder hole of the clamp body 5 is provided with a gear groove 5-1, a gear II 3-2 is assembled in the gear groove 5-1 and is synchronously and rotatably connected with a motor shaft of the motor 1 through a gear pair, the gear groove 5-1 is communicated with the cylinder hole 5-3 of the clamp body 5, a gear II 3-2 in the reduction mechanism 3 is meshed with a gear I3-1 in the reduction mechanism 3 at the position of the cylinder hole communicated 5-3 of the clamp body 5 through the gear groove 5-1, and the gear I3-1 is synchronously and rotatably sleeved on a rotating piece of the screw rod piston assembly 6; the motor 1 drives the gear II 3-2 to rotate, and the gear II 3-2 rotates to drive the gear I3-1 in the speed reducing mechanism 3 to rotate, so as to drive the rotating piece of the screw rod piston assembly 6 to rotate.
The gear groove 5-1 on the side surface of the cylinder hole of the clamp body 5 can be formed into an integral structure with the clamp body 5, or can be separated from the clamp body 5, namely a split structure.
Meanwhile, a pressure sensor 4 for detecting the braking force of a friction plate 8 pushed by a piston in the screw piston assembly 6 is arranged at the outer end part of the rotating part of the screw piston assembly 6, the pressure sensor 4 and the rotating part of the screw piston assembly 6 are coaxially arranged, a plane bearing 10 for axial bearing force is arranged between the screw piston assembly 6 and the pressure sensor 4, and the screw piston assembly is connected by adding the plane bearing 10. The magnitude of the braking force is detected by the pressure sensor 4 and the rotation angle and the operation of the motor 1 are feedback controlled.
The tail part of the clamp body 5 where the pressure sensor 4 is arranged is provided with a step through hole 5-2, and the pressure sensor 4 is assembled in the clamp body step through hole 5-2. The step through hole 5-2 is provided with a step facing the screw rod piston assembly 6, one end of the pressure sensor 4 is propped against the step at the step through hole 5-2 arranged at the top of the clamp body 5, and the other end is propped against a rotating piece of the screw rod piston assembly 6. Because the rotating piece of the screw rod piston assembly 6 is axially and sequentially connected with the friction plate and the brake disc through the piston, the braking pressure between the friction plate and the brake disc is transmitted to the pressure sensor 4 after passing through the piston and the rotating piece, and is detected by the pressure sensor 4.
In specific implementation, a circuit board 11 is arranged at one end of the caliper body 5 far away from the brake disc and the friction plate 8, the circuit board 11 is respectively and electrically connected with the motor 1 and the pressure sensor 4, and the pressure sensor 4 feeds back the detected braking force to the circuit board 11 so as to be used for controlling the operation of the motor 1.
The motor 1 is connected to the circuit board 3 by wires and is controlled by the circuit board 3.
According to the utility model, the motor 1 is controlled through the circuit board 11, the speed reducing mechanism 5 is used for transmitting torque and amplifying the torque, the torque is transmitted to the screw rod piston assembly 6, and the screw rod piston assembly 6 pushes the friction plate 8 to realize braking. Wherein the magnitude of the braking force is also fed back to the circuit board 11 by means of the pressure sensor 4.
The circuit board 11 is assembled at the tail end of the clamp body 5 and is connected with the pressure sensor 4, components are arranged on the circuit board 11, signals of the pressure sensor 4 are analyzed and fed back to the vehicle, an execution command is made to the motor 1 through command feedback of the vehicle, the motor 1 is controlled, and braking is achieved.
In a specific implementation, the pressure sensor 4 is mechanically connected with the circuit board 11, and specifically may be connected by means of a buckle, spring compression, welding, and the like. The pressure sensor 4 generates stress after plastic deformation, thereby generating a current difference signal in a strain gauge loop, and then transmitting the signal to the loop of the circuit board 11 in real time through a spring pin.
In specific implementation, the reduction mechanism 3 adopts a multi-stage gear transmission structure.
As shown in fig. 5, the speed reducing mechanism 3 comprises a gear six 3-6, a gear five 3-5, a gear four 3-4, a gear three 3-3, a gear two 3-2 and a gear one 3-1, wherein the gear six 3-6 is fixedly, coaxially and synchronously rotatably sleeved on a motor shaft of the motor 1, the gear one 3-1 is fixedly, coaxially and synchronously rotatably sleeved on a rotating member of the screw rod piston assembly 1, and the gear four 3-4, the gear five 3-5, the gear three 3-3 and the gear two 3-2 form a multi-stage gear structure between the gear six 3-6 and the gear one 3-1. The gear six 3-6 and the gear five 3-5 are bevel gears and are in meshed connection, the gear five 3-5 and the gear four 3-4 are in coaxial fixed connection, the gear four 3-4 and the gear three 3-3 are meshed, the gear three 3-3 and the gear two 3-2 are in synchronous rotation fixed coaxial connection, and the gear two 3-2 and the gear one 3-1 are meshed. Specifically, gear three 3-3 is coaxially connected with gear two 3-2 through a spline and drives gear two 3-2.
In the concrete implementation, the bearing 9 is sleeved on the shaft synchronously rotating between the gear III 3-3 and the gear II 3-2, and the shaft is sleeved in the gear groove 5-1 through the bearing 9 and is supported and connected to the step of the gear groove 5-1 for axial positioning and installation.
The motor 1 drives the gear six 3-6 to rotate, the gear six 3-6 drives the gear five 3-5, the gear five 3-5 drives the gear four 3-4, the gear four 3-4 drives the gear three 3-3, the gear three 3-3 drives the gear two 3-2, the gear two 3-2 drives the gear one 3-1, the gear one 3-1 drives the rotating piece of the screw rod piston assembly 1, and finally the motor 1 drives the rotating piece of the screw rod piston assembly 1 to rotate through a multistage gear transmission structure of the reduction mechanism 3.
The gear four 3-4, the gear three 3-3, the gear two 3-2 and the gear one 3-1 are straight gears, the gear six 3-6 and the gear five 3-5 are helical gears.
The gear IV 3-4 and the gear V3-5 are of an integrated structure to form a duplex gear.
The multi-stage gear transmission speed reducing mechanism 3 can not only transmit torque, but also amplify the torque, and the torque is transmitted to the screw rod piston assembly 6, and the screw rod piston assembly 6 pushes the friction plate 8 to realize braking.
As shown in fig. 4, the parking lock mechanism 2 includes a ratchet wheel 2-1, a pawl 2-2, a torsion spring 2-3 and an electromagnet 2-4, the ratchet wheel 2-1 is coaxially and fixedly sleeved on a motor shaft of the motor 1, the pawl 2-2 is arranged beside the periphery of the ratchet wheel 2-1, one end of the pawl 2-2 is close to the ratchet wheel 2-1 and is used for being connected with a ratchet of the ratchet wheel 2-1, the electromagnet 2-4 is arranged beside the other end of the pawl 2-2, and the end part of the electromagnet 2-4 is used for being in pushing connection with the other end of the pawl 2-2.
In a specific implementation, the parking lock mechanism 2 may further be provided with a pawl shaft mounted on the caliper body 5, and the middle portion of the pawl 2-2 is hinged to the pawl shaft, so that the pawl 2-2 may rotate around the pawl shaft.
The electromagnet has an armature therein that can extend and retract.
When the armature of the electromagnet 2-4 is retracted, the pawl 2-2 engages with the ratchet teeth of the ratchet wheel 2-1, so that the ratchet wheel 2-1 cannot be rotated in the locked state.
The gear six 3-6 and the ratchet wheel 2-1 adopt the same gear or adopt duplex gears.
Preferably, the gear six 3-6 sleeved on the motor 1 through the speed reducing mechanism 3 and the ratchet 2-1 sleeved on the motor 1 through the parking locking mechanism 2 adopt the same gear, so that the same gear can be used for simultaneously working the speed reducing mechanism 3 and the parking locking mechanism 2 and simultaneously used for reducing and locking the parking, and one object is realized.
The screw piston assembly 6 employs a ball screw pair or a roller screw pair, in which the screw is a rotating member.
As shown in fig. 3, the screw piston assembly 6 adopts a ball screw pair, and comprises a piston 6-5, a ball screw 6-4 and a wave washer 6-3 retainer ring 6-1; the piston 6-5 is arranged in a cylinder hole of the pliers body 5, one end of the ball screw 6-4 extends into the piston hole of the piston 6-5, a nut is sleeved outside the ball screw 6-4 in a rolling connection mode through balls and thread grooves, the nut is in rolling threaded connection with the ball screw 6-4, and the nut is arranged in the piston hole of the piston 6-5 and limited to rotate only and cannot axially move; the ball screw 6-4 is used as a rotating piece of the screw piston assembly 6, the other end of the ball screw 6-4 extends out of a piston hole of the piston 6-5 and is coaxially and fixedly sleeved with a gear six 3-6 of the speed reducing mechanism 3.
The piston hole of the piston 6-5 is provided with a snap spring groove with an annular groove on the inner peripheral surface far away from the cylinder hole of the clamp body 5, a wave washer 6-3 and a retainer ring 6-1 are arranged in the snap spring groove, the wave washer 6-3 is axially limited and installed in the snap spring groove by the retainer ring 6-1, and then a nut of the ball screw 6-4 is axially and immovably limited and installed in the piston hole of the piston 6-5.
In this case, an input gear at one end of the reduction mechanism 3 is connected to a gear on the motor shaft of the motor 1, while the ratchet 2-1 of the parking lock mechanism 2 is connected to a gear on the motor shaft of the motor 1, and an output gear at the other end of the reduction mechanism 3 is connected to the screw piston assembly 6.
The screw rod piston assembly 6 is arranged in the cylinder hole of the clamp body 5, and one end of the screw rod piston assembly 6 is arranged on one side of the friction plate 8. One end of a pawl 2-2 in the parking locking mechanism 2 is arranged on the periphery of a ratchet wheel 2-1, the other end of the pawl is arranged on one end of an electromagnet 2-4, the middle part of the pawl 2-2 is coaxially assembled with a torsion spring 2-3, one end of the torsion spring 2-3 is connected with the pawl 2-2, and the other end of the torsion spring is connected with a base arranged inside a clamp body 5.
According to the utility model, the motor drives the speed reducing mechanism, the speed reducing mechanism drives the ball screw piston assembly, the ball screw piston assembly converts rotation into linear motion, the piston is pushed, and the piston pushes the friction plate, so that braking is realized;
the parking locking mechanism locks the speed reducing mechanism to realize parking braking;
In the specific implementation, an angle sensor for detecting the rotation angle of the rotating piece can be further arranged, the detection of the position and the braking force of the motor is realized through the angle sensor and the force sensor, and signals of the angle sensor and the force sensor are received and output through the circuit board, and meanwhile, the calipers are controlled.
The specific implementation working process of the utility model comprises the following steps:
the motor 1 rotates to drive a gear six 3-6 of the speed reducing mechanism 3 to rotate, the multi-stage gear motion of the speed reducing mechanism 3 is finally and radially transmitted to a gear one 3-1 by a gear two 3-2, the gear one 3-1 drives a rotating piece screw of the screw rod piston assembly 6 to rotate, the screw rod piston assembly 6 converts the rotation motion into axial motion, and a friction plate 7 is pushed out by a piston in the screw rod piston assembly 6 to realize braking; the clamping force generated during braking is transmitted to the pressure sensor 4 via the screw piston assembly 6.
In the parking locking mechanism, an electromagnet 2-4 retracts at the side connected with a pawl, and the pawl 2-2 is meshed with a ratchet wheel 2-1 under the action of a torsion spring, so that the locking function is achieved; during running, the electromagnet 2-4 pushes the pawl 2-2 away, so that the pawl is separated from the ratchet wheel 2-1, and the parking function is released.
In the specific implementation, when the ratchet wheel 2-1 rotates anticlockwise, the brake caliper realizes the parking clamping function, and the pawl 2-2 can prevent the ratchet wheel 2-1 from rotating clockwise, so that the clamping force is ensured not to fade. The clamping function of the ratchet wheel 2-1 during clockwise rotation can also be realized by adjusting the electromagnet 2-4, the pawl 2-2 and the arrangement position.
In the clamping process of the friction plate 8, the clamping force is transmitted to the pressure sensor 4 through the screw rod piston assembly 6, the pressure sensor 4 inputs a force signal to the circuit board 11, and the circuit board 11 is used for feedback control of the rotation of the motor 1, so that the braking force is adjusted, and the feedback closed loop of the force is realized.
The foregoing detailed description is provided to illustrate the present utility model and not to limit the utility model, and any modifications and changes made to the present utility model within the spirit of the present utility model and the scope of the appended claims fall within the scope of the present utility model.
Claims (10)
1. An electronic brake caliper structure with a motor vertically arranged comprises a caliper body (5), a motor (1) and a screw rod piston assembly (6); the method is characterized in that:
the motor (1) is arranged outside the clamp body (5) and is perpendicular to the cylinder hole of the clamp body (5) in the axial direction;
The caliper further comprises a speed reducing mechanism (3), one end of the motor (1) is connected with one end of the speed reducing mechanism (3), the other end of the speed reducing mechanism (3) is synchronously connected with a rotating piece in the screw rod piston assembly (6), and the speed reducing mechanism (3) is connected to the rotating piece of the screw rod piston assembly (6) in a transmission manner from the radial side, so that the space of the caliper body is fully utilized, the reliability of the structure is improved, and the stability of braking motion is improved;
The parking lock mechanism (2) is provided with a ratchet structure, and the parking lock mechanism (2) is arranged near the motor shaft of the motor (1) and is connected with the motor shaft of the motor (1) for locking the motor shaft of the motor (1) to rotate.
2. An electric brake caliper structure with a motor vertically arranged as claimed in claim 1, wherein: the speed reducing mechanism (3) is arranged between the motor (1) and the screw piston assembly (6), and the speed reducing mechanism (3) is used for transmitting and connecting the driving force of the motor (1) to a rotating piece in the screw piston assembly (6) from the side of the screw piston assembly (6).
3. An electric brake caliper structure with a motor vertically arranged as claimed in claim 1, wherein: a gear groove (5-1) for accommodating the speed reducing mechanism (3) is arranged at the side of the cylinder hole of the clamp body (5), and the gear groove (5-1) is radially communicated with the cylinder hole of the clamp body (5) through a communication part (5-3);
A transmission gear which belongs to the speed reducing mechanism (3) and is connected with a motor shaft of the motor (1) in a synchronous rotating mode is arranged in the gear groove (5-1), a rotary gear is synchronously sleeved on a rotary piece of a screw rod piston assembly (6) in a cylinder hole of the clamp body (5), a connecting line of the transmission gear and the rotary gear is located in the radial direction of the cylinder hole of the clamp body (5), and the transmission gear and the rotary gear are in meshed connection at a communicating position (5-3), so that the speed reducing mechanism (3) is used for connecting power transmission to the rotary piece of the screw rod piston assembly (6) from the side.
4. An electric brake caliper structure with a motor vertically arranged as claimed in claim 1, wherein: meanwhile, a pressure sensor (4) for detecting braking force is arranged at the end part of the rotating piece of the screw rod piston assembly (6), and the pressure sensor (4) and the rotating piece of the screw rod piston assembly (6) are coaxially arranged.
5. An electric brake caliper structure with a motor vertically arranged as claimed in claim 1, wherein: the clamp body (5) is provided with a step through hole (5-2) at the position where the pressure sensor (4) is arranged, the step through hole (5-2) is provided with a step facing the screw rod piston assembly (6), one end of the pressure sensor (4) is propped against the step at the position where the step through hole (5-2) is arranged in the clamp body (5), and the other end of the pressure sensor is propped against a rotating piece of the screw rod piston assembly (6).
6. An electric brake caliper structure with a motor vertically arranged as claimed in claim 1, wherein: and a circuit board (11) is arranged at one end of the clamp body (5), the circuit board (11) is respectively electrically connected with the motor (1) and the pressure sensor (4), and the pressure sensor (4) feeds back the detected braking force to the circuit board (11) so as to be used for controlling the motor (1) to work.
7. An electric brake caliper structure with a motor vertically arranged as claimed in claim 1, wherein: the speed reducing mechanism (3) adopts a multi-stage gear transmission structure.
8. An electric brake caliper structure with a motor vertically arranged as claimed in claim 1, wherein: the parking locking mechanism (2) comprises a ratchet wheel (2-1), a pawl (2-2), a torsion spring (2-3) and an electromagnet (2-4), wherein the ratchet wheel (2-1) is coaxially and fixedly sleeved on a motor shaft of the motor (1), the pawl (2-2) is arranged beside the periphery of the ratchet wheel (2-1), one end of the pawl (2-2) is close to the ratchet wheel (2-1) and is used for being connected with a ratchet of the ratchet wheel (2-1), the electromagnet (2-4) is arranged beside the other end of the pawl (2-2), and the end part of the electromagnet (2-4) is used for being connected with the other end of the pawl (2-2) in a pushing mode.
9. An electric brake caliper structure with a motor vertically arranged as claimed in claim 1, wherein: the screw piston assembly (6) adopts a ball screw pair or a roller screw pair.
10. An electric brake caliper structure with a motor vertically arranged as claimed in claim 1, wherein: the motor (1) adopts a brushless motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322480757.2U CN220930014U (en) | 2023-09-13 | 2023-09-13 | Electric brake caliper structure with motor vertically arranged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322480757.2U CN220930014U (en) | 2023-09-13 | 2023-09-13 | Electric brake caliper structure with motor vertically arranged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220930014U true CN220930014U (en) | 2024-05-10 |
Family
ID=90934254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322480757.2U Active CN220930014U (en) | 2023-09-13 | 2023-09-13 | Electric brake caliper structure with motor vertically arranged |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220930014U (en) |
-
2023
- 2023-09-13 CN CN202322480757.2U patent/CN220930014U/en active Active
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