Electronic braking device

Abstract

The utility model provides an electronic brake device which comprises a brake support, an electronic thrust device and a brake implementation device, and the brake support is fixed to a wheel shaft support; the electronic thrust device is installed at the upper end of the brake support and connected with the brake implementation device, the electronic thrust device is used for driving the brake implementation device to conduct clamping braking and releasing actions, and the brake implementation device is installed below the brake support. By means of the electronic thrust device, a complex hydraulic braking system is simplified, braking is controlled more accurately to complete ABS and ESP comprehensive functions, and more efficient power distribution slip limiting performance is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of braking, in particular to an electronic braking device. BACKGROUND

[0002] With the development of science and technology, hydraulic braking devices are widely used in braking control of vehicles or equipment. The hydraulic braking device changes the size of the braking force by changing the hydraulic pressure of the hydraulic oil, and the hydraulic oil is used for force transmission in the system and is recycled without loss. However, the existing hydraulic braking device has the following problems:

[0003] 1. The existing hydraulic braking device relies on the transmission of hydraulic oil, and the temperature change and air mixing of the hydraulic oil will affect its viscosity, making it difficult to accurately control the braking force.

[0004] 2. The hydraulic system in the existing hydraulic braking device is composed of multiple pipelines and joints, and the complexity of the system increases the possibility of failure. Hydraulic oil leakage or pipeline damage can cause the braking performance to decline, thereby affecting the safety of the vehicle.

[0005] 3. The existing hydraulic braking device has a complicated replacement and system exhaust process, and the maintenance is difficult. CONTENT OF THE INVENTION

[0006] In view of the deficiencies of the prior art, the present application provides an electronic braking device to solve the problems of the prior art that the hydraulic braking device cannot accurately control the braking force, the system is complex and has a high failure probability, and the maintenance is difficult.

[0007] To achieve the above purpose, the specific technical scheme of the present application is as follows:

[0008] The present application provides an electronic braking device, comprising: a brake support, an electronic thrust device and a braking implementation device,

[0009] The brake support is fixed on the wheel shaft support; the electronic thrust device is installed on the upper end of the brake support and connected with the braking implementation device, the electronic thrust device is used to drive the braking implementation device to perform clamping braking and releasing action, and the braking implementation device is installed below the brake support.

[0010] Further, the brake support comprises a support body, a first part, a second part and a third part,

[0011] The support body is a fan-shaped cylindrical structure, symmetrically arranged at both ends of the brake support;

[0012] The third part is a fan-shaped cylindrical structure, symmetrically arranged at both ends of the support body, and the third part forms a limiting groove with the front end of the support body.

[0013] Two ends of the first part are respectively connected to one end of two third parts, and the first part, the third parts and the support body enclose an assembly hole penetrating in the vertical direction, the height of the first part is less than the third part, and a through hole is provided on the first part;

[0014] The second part is provided at the lower end of the first part and forms a groove with the third part.

[0015] Further, the support body has a bolt hole penetrating in the vertical direction.

[0016] Further, the upper end of the third part has a fixing hole penetrating in the horizontal direction.

[0017] Further, the electronic thrust device comprises a brake caliper body, a pressure sensor and a brake screw rod, the brake caliper body comprises a body part, a first protruding part, a second protruding part and a third protruding part,

[0018] The body part is an arc-shaped column structure, and the upper surface thereof has a heat dissipation hole penetrating in the vertical direction;

[0019] The first protruding part is symmetrically provided at the two ends of the body part and protrudes from the body part in the tangential direction of the body part;

[0020] The second protruding part is connected to the end of one side of the body part and protrudes from the body part in the centripetal direction of the body part;

[0021] The third protruding part is connected to the end of the other side of the body part and protrudes from the body part in the centripetal direction of the body part, and the third protruding part is provided with an internal threaded hole;

[0022] The pressure sensor is provided on the inner side of the brake caliper body, and one end thereof is connected to the second protruding part and the other end thereof is connected to the brake actuator;

[0023] The brake screw rod is in a column shape, and the outer surface thereof has an external thread capable of cooperating with the internal threaded hole, one end of the brake screw rod is provided with a spline groove for connecting to the output end of the motor, and the other end of the brake screw rod is provided with a protruding part.

[0024] Further, the diameter of the brake screw rod and the pressure sensor is less than or equal to the diameter of the through hole.

[0025] Further, the width of the first protruding part is less than the width of the limiting groove, and the side surface of the first protruding part has a through hole for cooperating with the fixing hole to be inserted by a sliding pin.

[0026] Further, the second protruding part and the third protruding part are of the same size and are smaller than the size of the groove.

[0027] Further, the brake implementation device comprises brake pads and brake pad base plates,

[0028] The brake pad base plates are fan-shaped and provided with mounting holes. Two brake pad base plates are arranged on both sides of the brake implementation device and symmetrically arranged in the mounting holes. One side of one of the brake pad base plates is connected to the protruding part of the brake screw rod through the mounting hole, and one side of the other brake pad base plate is connected to the other end of the pressure sensor.

[0029] The brake pads are fan-shaped and connected to the other side of the brake pad base plates.

[0030] Further, the brake support, the electronic thrust device and the brake implementation device are made of metal or composite materials.

[0031] Compared with the prior art, the technical scheme provided by the application has the following beneficial effects:

[0032] 1. By using the electronic thrust device, the influence of temperature change of hydraulic oil and air mixing on brake force adjustment in the traditional hydraulic system is overcome, thereby providing more stable brake performance.

[0033] 2. By arranging the brake screw rod, the transmission of brake force is realized by using a motor drive instead of a traditional hydraulic system, thereby reducing the number of pipes and joints in the brake, reducing the probability of failure, simplifying the maintenance process and improving the convenience of use of the brake device.

[0034] 3. By arranging the pressure sensor, the brake demand can be monitored in real time and responded quickly, the brake force can be adjusted in time, the wheel brake can be prevented from being locked to achieve the best brake effect, and an alarm can be sent when an abnormal situation occurs, thereby improving the safety and reliability of the brake device. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the electronic brake device of the utility model;

[0036] Figure 2 It is a schematic diagram of the cross-sectional structure of the electronic brake device of the utility model;

[0037] Figure 3 It is a front view of the brake support of the electronic brake device of the utility model;

[0038] Figure 4 It is a left view of the brake support of the electronic brake device of the utility model;

[0039] Figure 5 It is a brake support plan view of the electronic brake device of the utility model;

[0040] Figure 6 It is a brake support section view of the electronic brake device of the utility model;

[0041] Figure 7 It is a brake caliper body front view of the electronic brake device of the utility model;

[0042] Figure 8 It is a brake caliper body left view of the electronic brake device of the utility model;

[0043] Figure 9 It is a brake caliper body plan view of the electronic brake device of the utility model;

[0044] Figure 10 It is a brake pad backing plate front view of the electronic brake device of the utility model.

[0045] Reference signs:

[0046] 1, brake unit;2, brake pad;3, brake support;3-1, support body;3-2, first part;3-2-1, through hole;3-3, second part;3-4, third part;3-4-1, fixing hole;3-5, groove;3-6, bolt hole;3-7, limiting groove;3-8, assembly hole;4, brake pad backing plate;4-1, mounting hole;5, brake caliper body;5-1, body part;5-2, first protruding part;5-2-1, jack;5-3, second protruding part;5-4, third protruding part;5-4-1, internal thread hole;6, pressure sensor;7, brake screw;7-1, spline groove;7-2, external thread;7-3, protruding part;8, sliding pin. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0049] In addition, the description related to "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0050] As shown in Figures 1 to 1 0, an embodiment of the utility model provides an electronic brake device, it includes: brake support 3, electronic thrust device and brake implementation device,

[0051] Brake support 3 is fixed on wheel axle support, electronic thrust device is installed on the upper end of brake support 3, and is connected with brake implementation device, electronic thrust device is used to drive brake implementation device to carry out clamping brake and release action, brake implementation device is installed below brake support 3.

[0052] By using electronic thrust device instead of transmission hydraulic brake system, the influence of hydraulic oil temperature change and air mixing on brake force regulation in traditional hydraulic system is overcome, so that more stable brake performance is provided.

[0053] Preferably, the brake support 3 includes a support body 3-1, a first portion 3-2, a second portion 3-3, and a third portion 3-4,

[0054] The support body 3-1 is a fan-shaped cylindrical structure symmetrically arranged at both ends of the brake support 3.

[0055] The third portion 3-4 is a fan-shaped cylindrical structure symmetrically arranged at both ends of the support body 3-1, and the third portion 3-4 forms a limiting groove 3-7 with the front end of the support body 3-1.

[0056] The first portion 3-2 is connected to one end of the two third portions 3-4 respectively at both ends, and forms an assembly hole 3-8 penetrating in the vertical direction with the support body 3-1 and the third portion 3-4, the height of the first portion 3-2 is less than that of the third portion 3-4, and a through hole 3-2-1 is provided through the first portion 3-2.

[0057] The second portion 3-3 is arranged at the lower end of the first portion 3-2 and forms a groove 3-5 with the third portion 3-4.

[0058] The brake bracket 3 provides a stable base fixed on the axle bracket, ensures the stable installation of the electronic thrust device and the brake implementation device, and guarantees that they maintain the correct position during work; the brake bracket 3 serves as a connecting component to integrate the electronic thrust device and the brake implementation device together to form a complete brake system, and ensures the effective cooperation between the components.

[0059] Preferably, the bracket body 3-1 is provided with bolt holes 3-6 penetrating in the vertical direction.

[0060] The bolt holes 3-6 provided on the bracket body 3-1 enable the electronic brake device to be fixedly connected to the axle bracket by bolts, and the bolt connection makes the connection of the electronic brake device more stable, so that the brake device can better play the braking role and is more convenient to disassemble when the electronic brake device needs to be replaced or maintained.

[0061] Preferably, the upper end of the third part 3-4 is provided with a fixing hole 3-4-1 penetrating in the horizontal direction.

[0062] The first part 3-2, the second part 3-3 and the third part 3-4 form the groove 3-5 capable of accommodating the brake caliper body 5, the limiting groove 3-7 and the assembly hole 3-8, and the fixing hole 3-4-1 cooperates with the sliding pin 8 to ensure the stable position of the brake caliper body during work.

[0063] Preferably, the electronic thrust device comprises the brake caliper body 5, the pressure sensor 6 and the brake lead screw 7, the brake caliper body 5 comprises a body part 5-1, a first protruding part 5-2, a second protruding part 5-3 and a third protruding part 5-4,

[0064] The body part 5-1 is in the structure of an arc-shaped column, and the upper surface thereof is provided with heat dissipation holes 5-1-1 penetrating in the vertical direction;

[0065] The first protruding part 5-2 is symmetrically arranged at the two ends of the body part 5-1 and protrudes from the body part 5-1 in the tangential direction of the body part 5-1;

[0066] The second protruding part 5-3 is connected to the end of one side of the body part 5-1 and protrudes from the body part 5-1 in the centripetal direction of the body part 5-1;

[0067] The third protruding part 5-4 is connected to the end of the other side of the body part 5-1 and protrudes from the body part 5-1 in the centripetal direction of the body part 5-1, and the third protruding part 5-4 is provided with an internally threaded hole 5-4-1;

[0068] The pressure sensor 6 is arranged on the inner side of the brake caliper body 5, and one end thereof is connected to the second protruding part 5-3 and the other end thereof is connected to the brake implementation device;

[0069] The brake screw 7 is cylindrical, and its outer surface has external threads 7-2 that can cooperate with the internal threaded hole 5-4-1. One end of the brake screw 7 is provided with a spline groove 7-1 for connecting with the output end of the motor, and the other end is provided with a protruding part 7-3.

[0070] The heat dissipation hole 5-1-1 provided on the body part 5-1 is used to improve the heat dissipation performance of the brake caliper body, promote the rapid release of heat, and prevent the brake performance from being reduced or the material from being damaged due to overheating. The first protruding part 5-2 protruding in the tangential direction of the body part 5-1 is placed in the limiting groove 3-7 provided on the brake support 3, and is used to ensure that the brake caliper body 5 can move freely in the axial direction of the sliding pin 8 and maintain the automatic centering balance of the brake pad 2. The second protruding part 5-3 and the third protruding part 5-4 protruding in the centripetal direction of the body part 5-1 are placed in the groove 3-5 provided on the brake support 3, and are used to transmit the thrust to the brake implementation device. Through the setting of the pressure sensor, the brake demand can be monitored and responded quickly in real time, the brake force can be adjusted in time, and an alarm can be sent in the event of an abnormal situation, thereby improving the safety and reliability of the brake device. The brake screw 7 is connected to the output end of the motor through the spline groove 7-1 provided at one end thereof, and the other end passes through the through hole 3-2-1 to be connected to the brake pad backing plate 4 to implement the brake thrust.

[0071] Preferably, the diameter of the brake screw 7 and the pressure sensor 6 is less than or equal to the diameter of the through hole 3-2-1.

[0072] The through hole 3-2-1, the brake screw 7, and the pressure sensor 6 adopt the same diameter design, which limits the up-and-down movement of the brake caliper body 5 and ensures stable positioning during operation.

[0073] Preferably, the width of the first protruding part 5-2 is less than the width of the limiting groove 3-7, and the side surface of the first protruding part 5-2 has a through-placed jack 5-2-1 for cooperating with the fixed hole 3-4-1 through the insertion of the sliding pin 8.

[0074] Preferably, the second protruding part 5-3 and the third protruding part 5-4 have the same size and are smaller than the size of the groove 3-5.

[0075] The size design of the brake caliper body 5 takes into account the influence of thermal expansion and dynamic load, so that the brake caliper body 5 can maintain good operation in a high-temperature environment.

[0076] Preferably, the brake implementation device includes the brake pad 2 and the brake pad backing plate 4,

[0077] The brake pad base plate 4 is a fan shape, and the mounting hole 4-1 is arranged on the brake pad base plate 4; the brake pad base plate 4 is arranged on both sides of the brake implementation device, and the brake pad base plate 4 is symmetrically arranged in the assembly hole 3-8; one side of one of the brake pad base plates 4 is connected with the protruding part 7-3 on the brake screw 7 through the mounting hole 4-1; and the other side of the other brake pad base plate 4 is connected to the other end of the pressure sensor 6.

[0078] The brake pad 2 is a fan shape, and the brake pad 2 is connected to the other side of the brake pad base plate 4.

[0079] The brake pad base plate 4 drives the brake pads 2 on both sides of the brake unit 1 to be close to and clamp the brake unit 1 to implement braking through the thrust transmitted by the electronic thrust device; the brake unit 1 is fixed on the wheel hub or the driving device, and a part of the brake unit 1 is arranged in the assembly hole 3-8.

[0080] Preferably, the materials of the brake support, the electronic thrust device and the brake implementation device are metal materials or composite materials.

[0081] The working principle and the use process of the utility model are as follows: the electronic brake device needs to be fixed before use; the brake unit 1 is fixed on the wheel hub or the driving device, and the brake unit 1 is ensured to be synchronous with the driving device during rotation; the electronic brake device is fixed on the wheel shaft support through the bolt hole 3-6 on the brake support 3, and a part of the brake unit 1 is arranged in the assembly hole 3-8; the brake screw 7 is connected with the motor output end through the spline groove 7-1 arranged at one end of the brake screw 7.

[0082] When braking, the output shaft of the motor drives the brake screw 7 connected through the spline groove 7-1 to rotate clockwise, so that the brake screw 7 moves towards the brake unit 1; the brake pad base plate 4 connected with the brake screw 7 drives the right brake pad 2 to move towards the brake unit 1; at this time, the brake clamp body 5 moves along the axis of the brake screw 7; the third protruding part 5-4 drives the second protruding part 5-3 to move towards the brake unit 1; the second protruding part 5-3 pushes the pressure sensor 6 connected thereto; the pressure sensor 6 pushes the brake pad base plate 4 connected thereto; the left brake pad 2 is driven to move towards the brake unit 1; and the two brake pads 2 clamp the brake unit 1 to complete the braking function;

[0083] When the brake is released, the output shaft of the motor drives the brake screw 7 connected through the spline groove 7-1 to rotate counterclockwise, so that the brake screw 7 moves away from the brake unit 1; the brake clamp body 5 drives the brake pad 2 to move away from the brake unit 1; the pressure of the brake pad 2 on the brake unit 1 is reduced; and when the pressure of the brake pad 2 on the brake unit 1 is zero, the brake is completely released.

[0084] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the technical field, without departing from the principles of the present application, can also make a number of improvements and refinements, these improvements and refinements also as the protection scope of the present application.

[0085] The technical features of the above embodiments can be combined arbitrarily, in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of these technical features does not exist contradiction, should be considered as the scope of the present application.

[0086] The above described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it should not be construed as limiting the scope of the patent of the present application. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, can also make a number of variations and improvements, these are within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims.

Claims

1. An electronic braking device, characterized in that... include: Brake bracket (3), electronic thrust device and braking actuation device, The brake bracket (3) is fixed on the wheel axle bracket; the electronic thrust device is installed on the upper end of the brake bracket (3) and connected to the brake implementation device. The electronic thrust device is used to drive the brake implementation device to perform clamping and releasing actions. The brake implementation device is installed below the brake bracket (3).

2. The electronic braking device according to claim 1, characterized in that, The brake bracket (3) includes a bracket body (3-1), a first part (3-2), a second part (3-3), and a third part (3-4). The bracket body (3-1) is a fan-shaped column structure, symmetrically arranged at both ends of the brake bracket (3); The third part (3-4) is a fan-shaped column structure, which is symmetrically arranged at both ends of the support body (3-1). The third part (3-4) and the front end of the support body (3-1) form a limiting groove (3-7). The first part (3-2) is connected to one end of each of the two third parts (3-4) at both ends, and together with the bracket body (3-1) and the third part (3-4) form a vertical through-hole (3-8). The height of the first part (3-2) is less than that of the third part (3-4), and a through hole (3-2-1) is provided on the first part (3-2). The second part (3-3) is disposed at the lower end of the first part (3-2) and forms a groove (3-5) with the third part (3-4).

3. The electronic braking device according to claim 2, characterized in that, The bracket body (3-1) has bolt holes (3-6) that extend vertically through it.

4. The electronic braking device according to claim 2, characterized in that, The upper end of the third part (3-4) has a fixing hole (3-4-1) that runs through the horizontal direction.

5. The electronic braking device according to claim 2, characterized in that, The electronic thrust device includes a brake caliper (5), a pressure sensor (6), and a brake screw (7). The brake caliper (5) includes a body (5-1), a first protrusion (5-2), a second protrusion (5-3), and a third protrusion (5-4). The main body (5-1) has an arc-shaped cylindrical structure, and its upper surface has heat dissipation holes (5-1-1) that are arranged vertically through it; The first protrusion (5-2) is symmetrically disposed at both ends of the body part (5-1) and protrudes from the body part (5-1) along the tangential direction of the body part (5-1); The second protrusion (5-3) is connected to the end of one side of the body part (5-1) and protrudes from the body part (5-1) in the centripetal direction; The third protrusion (5-4) is connected to the other end of the body part (5-1) and protrudes from the body part (5-1) in the centripetal direction. The third protrusion (5-4) is provided with an internal threaded hole (5-4-1). The pressure sensor (6) is located inside the brake caliper (5), with one end connected to the second protrusion (5-3) and the other end connected to the brake actuation device. The brake screw (7) is columnar, and its outer surface has an external thread (7-2) that can mate with the internal thread hole (5-4-1). One end of the brake screw (7) is provided with a spline groove (7-1), which is used to connect with the output end of the motor. The other end of the brake screw (7) is provided with a protruding part (7-3).

6. The electronic braking device according to claim 5, characterized in that, The diameters of the brake screw (7) and the pressure sensor (6) are less than or equal to the diameter of the through hole (3-2-1).

7. The electronic braking device according to claim 5, characterized in that, The width of the first protrusion (5-2) is smaller than the width of the limiting groove (3-7). The side of the first protrusion (5-2) has a through-hole (5-2-1), which is used to cooperate with the fixing hole (3-4-1) for insertion by the sliding pin (8).

8. The electronic braking device according to claim 5, characterized in that, The second protrusion (5-3) and the third protrusion (5-4) are the same size, and both are smaller than the size of the groove (3-5).

9. The electronic braking device according to claim 5, characterized in that, The braking device includes a brake pad (2) and a brake pad backing plate (4). The brake pad pad (4) is fan-shaped and has mounting holes (4-1). Brake pad pads (4) are provided on both sides of the braking device and are symmetrically arranged in the assembly holes (3-8). One side of one of the brake pad pads (4) is connected to the protruding part (7-3) on the brake screw (7) through the mounting hole (4-1), and one side of the other brake pad pad (4) is connected to the other end of the pressure sensor (6). The brake pad (2) is fan-shaped and is connected to the other side of the brake pad pad (4).

10. The electronic braking device according to claim 1, characterized in that, The brake bracket (3), electronic thrust device and brake implementation device are made of metal or composite materials.

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