Brake caliper

Abstract

According to the technical scheme, the brake caliper is characterized by comprising a caliper body and two brake pads, wherein the caliper body is provided with a built-in oil way; a brake groove is formed in the inner surface of the caliper body; the two brake pads are oppositely arranged on the outer sides of the first groove wall and the second groove wall, brake pistons are arranged in two piston cavities in the first groove wall, and the end faces of the brake pistons are connected with the brake pads. Brake pistons are arranged in the two piston cavities in the second groove wall, and the end faces of the brake pistons are connected with brake pads; a parking mechanism used for being matched with a brake pad is arranged on the side, close to the first groove wall, of the caliper body. The output end of the parking mechanism is connected with the brake pad; the parking mechanism and the braking mechanism share the brake pad, the braking and parking effects of a brake caliper can be achieved without adopting a double-caliper structure, the manufacturing cost is low, installation is easy, and the feasibility of upgrading and braking of the rear wheel is improved for a vehicle model with a small hub and a small space; the size is small, installation is convenient, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile brake, more specifically, it relates to a brake caliper. BACKGROUND

[0002] With the progress of science and technology and the development of economy, people's living standards gradually improve, and the use of cars is also increasing, and cars have become an important means of transportation for people. People pay more and more attention to the safety of cars. Among them, the driving brake is an important part of the safety of the car.

[0003] The traditional vehicle with electronic wheel hand brake needs to use double calipers to realize the braking and parking of the vehicle during braking. One caliper realizes normal braking through hydraulic pressure, and the other caliper realizes parking through a motor. For example, the utility model patent with publication number CN 213088574 U discloses such a double-caliper brake structure. However, this double-caliper structure is complex to install, large in size, and high in manufacturing cost. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a brake caliper to solve the technical problems existing in the background art.

[0005] The above technical purpose of the utility model is realized through the following technical scheme: a brake caliper, comprising: a caliper body provided with an internal oil circuit, and two brake pads for cooperating with a brake disc; the inner surface of the caliper body forms a brake groove; the brake groove includes first and second groove walls arranged oppositely; the two brake pads are arranged oppositely outside the first and second groove walls to cooperate to form a placing groove for accommodating the brake disc; two piston cavities are respectively provided on the first and second groove walls; the two piston cavities on the first groove wall and the two piston cavities on the second groove wall correspond one by one; brake pistons are arranged in the two piston cavities on the first groove wall, and the end faces of the brake pistons are connected to one brake pad close to the first groove wall; brake pistons are arranged in the two piston cavities on the second groove wall, and the end faces of the brake pistons are connected to the other brake pad close to the second groove wall; a parking mechanism for cooperating with the brake pad is arranged on one side of the caliper body close to the first groove wall; the output end of the parking mechanism is connected to the brake pad.

[0006] Optionally, the mechanism includes: a transmission assembly for cooperating with the brake pad, and a driving assembly for driving the transmission assembly; the output end of the transmission assembly is connected to the brake pad after passing through the caliper body; the output end of the driving assembly is in transmission connection with the input end of the transmission assembly.

[0007] Optionally, the transmission assembly comprises: a shaft core, a push rod, a parking piston, a casing, two slide rods, a guide pin and a bearing; the two slide rods are arranged in opposite states on the upper end of the caliper body; the casing is installed on the caliper body through the two slide rods; one end of the shaft core is rotatably installed on one end of the casing through the bearing, and the extended end thereof is in transmission connection with the driving assembly; the push rod is installed in the parking piston; the outer wall of the shaft core is provided with external threads, and the other end thereof is embedded and connected with the screw thread of the push rod in the parking piston; the parking piston is installed on the caliper body near one end of the first groove wall; the end face of the parking piston is connected with one brake pad near the first groove wall; the end of the casing away from the shaft core is provided with a mounting portion; the guide pin is installed on the first groove wall; the guide pin is in sliding connection with the mounting portion; the mounting portion can abut against one brake pad near the second groove wall.

[0008] Optionally, the driving assembly comprises: a driving motor and an adapter; the adapter is rotatably installed on the casing and in transmission connection with the input end of the shaft core; the output end of the driving motor is in transmission connection with the adapter.

[0009] Optionally, the shaft core is provided with a sealing rubber ring.

[0010] Optionally, a limiting screw is further included; the outer wall of the parking piston is provided with a sliding groove matched with the limiting screw; the limiting screw is installed on the casing, and the extended end thereof can be slidably arranged in the sliding groove after passing through the casing.

[0011] Optionally, an oil delivery pipe is arranged on the caliper body; the oil delivery pipe is in communication with the built-in oil passage on the caliper body.

[0012] In conclusion, the parking mechanism and the brake mechanism of the utility model share brake pads, without the structure of double clamps, the brake and parking effects of the brake caliper can be realized, the manufacturing cost is low, the installation is simple, the feasibility of upgrading the rear wheel brake for the vehicle with small hub and small space is improved, the volume is small, the installation is convenient, and the practicality is high. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the assembly drawing of the utility model;

[0014] Figure 2 is the structure schematic view when the utility model is assembled;

[0015] Figure 3 is Figure 2 the right view of the utility model;

[0016] Figure 4 is Figure 3 the sectional view of A-A in the utility model;

[0017] Figure 5 Fig. 1 is a schematic view of the structure relationship between the parking mechanism and each component;

[0018] Figure 6 Fig. 2 is a schematic view of the structure relationship between the brake piston and each component. DETAILED DESCRIPTION

[0019] In order to make the purpose, characteristics and advantages of the present application more apparent, obvious and understandable, the specific embodiments of the present application are described in detail below with reference to the drawings. Several embodiments of the present application are given in the drawings. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein.

[0020] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features.

[0021] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "top" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "bottom" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions are only for the purpose of description, and are not indicative or suggestive of the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0022] The present application will be described in detail below with reference to the drawings and embodiments.

[0023] The present application provides a brake caliper, such as Figures 1-6As shown, including: provided with built-in oil way caliper body 1, and two for cooperating with brake disc 9 brake pad 2; The inner surface of the caliper body 1 forms a brake groove 4; The brake groove 4 includes a first groove wall 5 and a second groove wall 6 oppositely arranged; Two brake pads 2 oppositely arranged with the first groove wall 5 and the second groove wall 6 are outside to cooperate to form a placement groove for placing the brake disc 9; The first groove wall 5 and the second groove wall 6 are respectively provided with two piston cavities; The two piston cavities on the first groove wall 5 and the two piston cavities on the second groove wall 6 correspond one by one; The two piston cavities on the first groove wall 5 are provided with brake pistons 7, and the end faces thereof are connected with one brake pad 2 close to the first groove wall 5; The two piston cavities on the second groove wall 6 are provided with brake pistons 7, and the end faces thereof are connected with the other brake pad 2 close to the second groove wall; The side of the caliper body 1 close to the first groove wall 5 is provided with a parking mechanism 3 for cooperating with the brake pad 2; The output end of the parking mechanism 3 is connected with the brake pad 2.

[0024] In this embodiment, as shown, Figures 1-6 The brake oil enters the four piston cavities of the caliper body 1 from the oil inlet, pushes the four brake pistons 7 in the four piston cavities to move out, and then pushes the two brake pads 2 to move relatively, so that the two brake pads 2 are in contact with the brake disc 9 respectively, a friction force is generated, the vehicle is slowed down to achieve the brake effect; When parking is needed, the parking mechanism 3 is started to drive the two brake pads 2 to move relatively, so that the two brake pads 2 are in contact with the brake disc 9 respectively, a friction force is generated, and the parking action of the vehicle is realized; In this application, the parking mechanism 3 and the brake mechanism share the brake pad 2, without using the structure of double calipers, the brake and parking effects of the brake caliper can be realized, the manufacturing cost is low, the installation is simple, the feasibility of upgrading the rear brake of the vehicle with small hub and small space is improved, the volume is small, the installation is convenient, and the practicality is strong.

[0025] Further, the mechanism comprises: a transmission assembly 32 for cooperating with the brake pad 2, and a driving assembly 31 for driving the transmission assembly 32; The output end of the transmission assembly 32 is connected with the brake pad 2 after penetrating through the caliper body 1; The output end of the driving assembly 31 is in transmission connection with the input end of the transmission assembly 32.

[0026] Further, the transmission assembly 32 comprises a shaft core 3201, a push rod 3202, a parking piston 3203, a casing 3204, two slide rods 3205, a guide pin 3206, and bearings; the two slide rods are oppositely arranged at the upper end of the plier body 1; the casing 3204 is installed on the plier body 1 through the two slide rods; one end of the shaft core 3201 is rotatably installed on one end of the casing 3204 through the bearings, and the extended end thereof is in transmission connection with the driving assembly 31; the push rod 3202 is installed in the parking piston 3203; the outer wall of the shaft core 3201 is provided with external threads, and the other end thereof is embeddedly connected with the push rod 3202 in the parking piston 3203; the parking piston 3203 is installed on the plier body 1 close to one end of the first slot wall 5; the end face of the parking piston 3203 is connected with one brake pad 2 close to the first slot wall 5; one end of the casing 3204 away from the shaft core 3201 is provided with a mounting portion; the guide pin 3206 is installed on the first slot wall 5; the guide pin 3206 is in sliding connection with the mounting portion; the mounting portion can abut against one brake pad 2 close to the second slot wall 6; in the present application, the casing 3204 is in the shape of inverted U-shaped structure, and the shaft core 3201 is a shaft core 3201 made of a screw rod.

[0027] Further, the driving assembly 31 comprises a driving motor 3101 and an adapter 3102; the adapter 3102 is rotatably installed on the casing 3204, and is in transmission connection with the input end of the shaft core 3201; the output end of the driving motor 3101 is in transmission connection with the adapter 3102.

[0028] In the present embodiment, as shown in Figures 1-6As shown, the parking mechanism 3 is mainly composed of a driving assembly 31 and a transmission assembly 32; during assembly, the casing 3204 is slidably installed on the jaw body 1 through the root slide rod 3205; when the parking action (hand brake parking) is needed, the driving motor 3101 is positively rotated to drive the shaft core 3201 to rotate, the shaft core 3201 is engaged with the push rod 3202 of the parking piston 3203 through the screw teeth, the shaft core 3201 drives the push rod 3202 to move forward, the push rod 3202 makes the parking piston 3203 move forward under force, the parking piston 3203 moves forward to push out the brake pad 2 close to the first groove wall 5, so that the brake pad 2 contacts one side of the brake disc 9; at this time, the driving motor 3101 continues to work, the casing 3204 moves in the direction close to the first groove wall 5 through the guide pin 3206, and then drives the brake pad 2 on the other side of the brake disc 9 to move towards the brake pad 2, so that the brake pad 2 contacts the other side of the brake disc 9, and the parking action is realized; when the parking action needs to be cancelled (the hand brake is released), the driving motor 3101 works reversely to drive the shaft core 3201 to rotate reversely, the shaft core 3201 drives the push rod 3202 and the casing 3204 to pull back, and then drives the parking piston 3203 to pull back, releases the brake disc two brake pads 2, and ends the parking action.

[0029] Optionally, in the embodiment, the casing 3204 is integrally formed by casting, which can effectively ensure the structural strength.

[0030] Optionally, in the embodiment, the size of the adapter 3102 can be customized according to the driving motor 3101 of different vehicle models, so as to cooperate with the special shaft core 3201, so as to adapt to multiple vehicle models.

[0031] Further, the shaft core 3201 is provided with a sealing rubber ring, specifically, the sealing rubber ring is designed to avoid dust and sundries from entering the parking piston 3203, and to avoid affecting the normal work.

[0032] Further, it further includes a limiting screw 3207; the outer wall of the parking piston 3203 is provided with a sliding groove matched with the limiting screw 3207; the limiting screw 3207 is installed on the casing 3204, and the extension end thereof is slidably arranged in the sliding groove after passing through the casing 3204.

[0033] In the embodiment, the limiting screw 3207 is mainly used for limiting the parking piston 3203, avoiding the rotation of the parking piston 3203, so as to ensure that the parking piston 3202 can only move in and out.

[0034] Further, the jaw body 1 is provided with an oil delivery pipe 8; the oil delivery pipe 8 is in communication with the built-in oil way of the jaw body 1.

[0035] The utility model discloses a kind of brake calipers, parking mechanism 3 and brake mechanism share brake pad 2, without adopting the structure of double calipers, brake and parking effect of brake caliper can be realized, realize low manufacturing cost, installation is simple, improve the feasibility of rear wheel upgrade brake for wheel hub small, small space vehicle type;Small in size, easy to install, strong practicality.

[0036] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above-mentioned examples only. Any technical solution falling within the concept of the utility model shall fall within the protection scope of the utility model. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the utility model are also considered to be within the protection scope of the utility model.

Claims

1. A brake caliper, characterized in that The mechanism comprises: a transmission assembly for cooperating with the brake pad, and a driving assembly for driving the transmission assembly; the output end of the transmission assembly is connected with the brake pad after penetrating through the caliper body; the output end of the driving assembly is in transmission connection with the input end of the transmission assembly. The transmission assembly comprises: a shaft core, a push rod, a parking piston, a machine shell, two slide rods, a guide pin, and a bearing; the two slide rods are arranged in opposite states on the upper end of the caliper body; the machine shell is installed on the caliper body through the two slide rods; one end of the shaft core is rotatably installed on one end of the machine shell through the bearing, and the extended end thereof is in transmission connection with the driving assembly; the push rod is installed in the parking piston; the outer wall of the shaft core is provided with external threads, and the other end thereof is embedded and connected with the push rod in the parking piston; the parking piston is installed on one end of the caliper body close to the first groove wall; the end face of the parking piston is connected with one brake pad close to the first groove wall; the end of the machine shell away from the shaft core is provided with a mounting portion; the guide pin is installed on the first groove wall; the guide pin is in sliding connection with the mounting portion; the mounting portion can abut against one brake pad close to the second groove wall.

2. A brake caliper according to claim 1, characterized in that The driving assembly comprises: a driving motor, and an adapter; the adapter is rotatably installed on the machine shell, and is in transmission connection with the input end of the shaft core; the output end of the driving motor is in transmission connection with the adapter.

3. A brake caliper according to claim 2, characterized in that The shaft core is provided with a sealing rubber ring.

4. A brake caliper according to claim 3, characterized in that Further comprising a limiting screw; the outer wall of the parking piston is provided with a sliding groove matched with the limiting screw; the limiting screw is installed on the machine shell, and the extended end thereof is slidably arranged in the sliding groove after penetrating through the machine shell.

5. A brake caliper according to claim 3, characterized in that The caliper body is provided with an oil delivery pipe; the oil delivery pipe is in communication with the built-in oil passage on the caliper body.

6. A brake caliper according to claim 3, characterized in that ​ 7. A brake caliper according to claim 1, characterized in that ​

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