Hidden single rocker arm hub motor brake structure and electric vehicle

Abstract

The utility model provides a hidden type single rocker arm hub motor braking structure and an electric vehicle, and relates to the technical field of electric two-wheeled vehicle braking structures, the hidden type single rocker arm hub motor braking structure comprises a hub assembly, a brake shoe assembly, a transmission assembly and a rocker arm, the brake shoe assembly and the transmission assembly are both arranged in the hub assembly, and the rocker arm is arranged in the hub assembly. The brake shoe assembly comprises a plurality of brake shoe blocks evenly distributed in the circumferential direction, and all the brake shoe blocks are connected with the rocker arm through the transmission assembly. The rocker arm can drive all the brake shoes to synchronously move from inside to outside in the radial direction through the transmission assembly and make contact with the inner brake face of the hub assembly. The electric vehicle comprises the hidden type single rocker arm hub motor braking structure. The rocker arm and the transmission assembly are matched with each other, the multiple brake shoes are driven to make contact with the inner brake face of the hub assembly in the mode of synchronously moving from inside to outside in the radial direction, the larger brake friction area is achieved, and the brake effect can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric two -wheeled vehicle brake structure technical field, concretely relates to a hidden single rocker wheel hub motor brake structure and electric motor car. BACKGROUND

[0002] Electric two -wheeled vehicle as a kind of tool, it is extremely common in present life, the existing electric two -wheeled vehicle usually adopts wheel hub motor as its driving component, the existing wheel hub motor its brake structure usually includes brake shoe group, rocker and single side rotating shaft, brake, through rocker drive single side rotating shaft rotation, to make one side of brake shoe group open, and with the inner wall surface friction of wheel hub, the structure friction area is limited, and the brake effect is not good. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of hidden single rocker wheel hub motor brake structure and electric motor car, to solve the above-mentioned technical problems existing in prior art;The preferred technical solutions in many technical solutions provided by the utility model can produce many technical effects;See the elaboration below.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] The utility model provides a kind of hidden single rocker wheel hub motor brake structure, including wheel hub assembly, brake shoe assembly, transmission assembly and rocker, wherein: the brake shoe assembly and the transmission assembly are all arranged in the wheel hub assembly, the brake shoe assembly includes multiple brake shoe blocks that are evenly distributed along the circumference, all the brake shoe blocks are connected with the rocker by the transmission assembly;The rocker can drive all the brake shoe blocks to move synchronously along the radial direction from inside to outside by the transmission assembly, and is contacted with the inner brake surface of the wheel hub assembly.

[0006] The radial reference component is wheel hub assembly, that is, along the direction of diameter of the wheel hub assembly.

[0007] Preferably, the number of brake shoe blocks is two, and the two brake shoe blocks are oppositely arranged;The rocker can drive the two brake shoe blocks to move synchronously in opposite directions along the radial direction by the transmission assembly, and is contacted with the inner brake surface of the wheel hub assembly.

[0008] Preferably, two transmission grooves are formed between the two brake shoe blocks, and the transmission assembly includes a connecting piece and two cam shafts, wherein: the two cam shafts are rotatably arranged in the two transmission grooves respectively, the two cam shafts are connected by the connecting piece and rotate synchronously, and one of the two cam shafts is connected with the rocker.

[0009] Preferably, the cam rotating shaft comprises an integral mounting column, a limiting plate and a cam column, wherein: the inner wall of the hub assembly is provided with a mounting groove, the mounting column is rotatable in the mounting groove, and the connecting end of the mounting column is connected with the rocker arm; the limiting plate abuts against the slot of the mounting groove; and the cam column is rotatable in the corresponding transmission groove.

[0010] Preferably, the limiting plate is provided with a connecting part rotatably connected with the end part of the connecting piece.

[0011] Preferably, the hidden single-rocker-arm hub motor brake structure comprises a return assembly connected with the brake shoe assembly and capable of driving the two brake shoe blocks to move synchronously and oppositely in the radial direction.

[0012] Preferably, the return assembly comprises at least one elastic piece connected with the brake shoe blocks; when the two brake shoe blocks move synchronously and oppositely, the elastic piece is deformed; and the deformed elastic piece can drive the two brake shoe blocks to move synchronously and oppositely.

[0013] Preferably, the two ends of the elastic piece are respectively connected with the two brake shoe blocks; and when the two brake shoe blocks move synchronously and oppositely, the elastic piece is stretched and deformed.

[0014] Preferably, the rocker arm is arranged on the outer side of the hub assembly, and the connecting end of the rocker arm is connected with the transmission assembly.

[0015] The utility model provides a kind of electric vehicle, including the hidden single-rocker-arm hub motor brake structure of any preceding.

[0016] The hidden single-rocker-arm hub motor brake structure and electric vehicle provided by the utility model at least have the following beneficial effects:

[0017] The hidden single-rocker-arm hub motor brake structure comprises a hub assembly, a brake shoe assembly, a transmission assembly and a rocker arm.

[0018] The brake shoe assembly and the transmission assembly are arranged in the wheel hub assembly in a hidden structure; the brake shoe assembly comprises a plurality of brake shoe blocks uniformly distributed in the circumferential direction, all the brake shoe blocks are connected with the rocker arm through the transmission assembly, when braking, the rocker arm swings to drive all the brake shoe blocks to move synchronously along the radial direction from inside to outside and contact and rub with the inner brake surface of the wheel hub assembly, thereby realizing braking, the brake action mode of the plurality of brake shoe blocks cooperating with the synchronous radial movement can provide larger brake friction area with the inner brake surface of the wheel hub assembly, thereby greatly improving the braking effect.

[0019] The rocker arm and the transmission assembly are matched with each other, and the plurality of brake shoe blocks are driven to contact the inner brake surface of the wheel hub assembly in the mode of synchronous movement along the radial direction from inside to outside, the brake friction area is larger, and the braking effect can be greatly improved. DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0021] Figure 1 is a structural schematic view of the present application;

[0022] Figure 2 is a front view schematic view of the present application;

[0023] Figure 3 is an exploded schematic view of one view angle of the present application;

[0024] Figure 4 is an exploded schematic view of another view angle of the present application;

[0025] Figure 5 is a schematic view of the internal brake structure of the wheel hub assembly of the present application;

[0026] Figure 6 is a structural schematic view of the brake shoe assembly of the present application;

[0027] Figure 7 is a structural schematic view of the cam shaft of the present application;

[0028] Figure 8 is a structural schematic view of the connecting piece of the present application.

[0029] DRAWINGS

[0030] 1, wheel hub assembly; 11, inner brake surface; 12, mounting groove; 2, brake shoe assembly; 21, brake shoe block; 22, transmission groove; 3, transmission assembly; 31, cam rotating shaft; 311, mounting column; 312, limiting plate; 313, cam column; 314, connecting part; 32, connecting piece; 4, rocker arm; 5, return assembly; 51, elastic piece. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope protected by the utility model.

[0032] Embodiment 1:

[0033] The utility model provides a kind of hidden single rocker arm wheel hub motor brake structure, refer to Figures 1 to 8 As shown in the drawing, the hidden single rocker arm wheel hub motor brake structure includes wheel hub assembly 1, brake shoe assembly 2, transmission assembly 3 and rocker arm 4.

[0034] The inside of wheel hub assembly 1 is provided with accommodating cavity, and the inner wall of wheel hub assembly 1 is provided with inner brake surface 11 matched with brake shoe assembly 2, brake shoe assembly 2 and transmission assembly 3 are arranged in the accommodating cavity, brake shoe assembly 2 includes a plurality of brake shoe blocks 21, all brake shoe blocks 21 are evenly distributed along the circumference, and all brake shoe blocks 21 are connected with rocker arm 4 by transmission assembly 3.

[0035] When braking, rocker arm 4 swings, drives all brake shoe blocks 21 to move synchronously along the radial direction from inside to outside by transmission assembly 3, and is contacted with the inner brake surface 11 of wheel hub assembly 1, then, brake shoe block 21 is frictional with inner brake surface 11 to realize braking.

[0036] In the above process, the whole friction plate of brake shoe block 21 is contacted with inner brake surface 11, and a plurality of brake shoe blocks 21 are matched to provide larger friction braking area matched with inner brake surface 11, so that the braking effect is greatly improved.

[0037] Embodiment 2:

[0038] Embodiment 2 is established on the basis of embodiment 1:

[0039] As Figures 1 to 8As shown, the number of brake shoes 21 is set to two, and the two brake shoes 21 are arranged opposite to each other. Each brake shoe 21 includes a shoe body and a friction plate disposed on the outer wall of the shoe body. The friction plate is arc-shaped, and its curvature is adapted to the inner brake surface 11 of the wheel hub assembly 1.

[0040] During braking, the rocker arm 4 swings, which drives the two brake shoes 21 to move synchronously in opposite directions along the radial direction through the transmission assembly 3, thereby contacting and rubbing against the inner brake surface 11 of the wheel hub assembly 1.

[0041] The use of dual brake shoes 21 simplifies the transmission structure while ensuring braking performance, thereby reducing costs and facilitating future maintenance.

[0042] As an optional implementation, two transmission grooves 22 are formed between the two brake shoes 21. Specifically, the brake shoes 21 are arc-shaped, and the gap between the corresponding ends of the two brake shoes 21 forms the transmission grooves 22. The corresponding end transmission grooves 22 of the two brake shoes 21 are two opposing pressure walls.

[0043] The transmission assembly 3 includes a connector 32 and two cam shafts 31. The two cam shafts 31 are rotatably disposed in two transmission grooves 22 respectively. The two cam shafts 31 are connected by the connector 32 and rotate synchronously. One of the two cam shafts 31 is rotatably connected to the rocker arm 4. Thus, the two cam shafts 31 are the driving cam shaft and the driven cam shaft respectively.

[0044] During braking, the rocker arm 4 swings, driving the active cam shaft to rotate. The active cam shaft drives the driven cam shaft to rotate synchronously through the connecting piece 32. During the rotation of the aforementioned cam shaft 31, as the rotation angle of the cam shaft 31 changes, the cam shaft 31 presses against the pressure wall of the transmission groove 22, thereby causing the two brake shoes 21 to move synchronously in opposite directions.

[0045] By using a cam shaft 31 in conjunction with a transmission groove 22, the rotational motion of the cam shaft 31 can be effectively converted into the movement of the brake shoe 21. The structure is simple and the transmission effect is significant.

[0046] As an optional implementation, the cam shaft 31 includes a mounting post 311, a limiting plate 312, and a cam post 313, which are integrally formed.

[0047] The inner wall of the hub assembly 1 is provided with a mounting groove 12, which is shaped to fit the mounting post 311. The mounting post 311 is cylindrical and can rotate within the mounting groove 12. The connecting end of the mounting post 311 is connected to the rocker arm 4. The limiting plate 312 abuts against the opening of the mounting groove 12. The cam post 313 is flat and can rotate within the corresponding transmission groove 22. During braking, as it rotates and presses against the groove wall of the transmission groove 22, it pushes the two brake shoes 21 to move synchronously in opposite directions.

[0048] As an optional implementation, the limiting plate 312 is provided with a connecting part 314, which is an extension plate integrally provided on the limiting plate 312. The extension plate is provided with a connecting hole, and the connecting member 32 is a connecting plate with a U-shape and its end is hinged to the connecting hole.

[0049] The connector 32 is used for the linkage of the two cam shafts 31, so that the two cam shafts 31 can rotate synchronously, thereby ensuring the synchronous movement of the two brake shoes 21.

[0050] As an optional implementation, the concealed single rocker arm hub motor braking structure includes a return component 5, which is connected to the brake shoe assembly 2. The return component 5 is used to return the brake shoe assembly 2 to its original position. After braking is completed, it can drive the two brake shoes 21 to move synchronously towards each other in the radial direction and return to their initial position.

[0051] As an optional implementation, the return assembly 5 includes at least one elastic element 51, which is a spring and is connected to the brake shoe 21.

[0052] During braking, the two brake shoes 21 move synchronously in opposite directions under the braking force applied by the rocker arm 4. During this process, the elastic element 51 deforms, thereby generating elastic potential energy.

[0053] When braking is complete and the braking force applied by rocker arm 4 is eliminated, the elastic element 51 in the deformed state releases potential energy, driving the two brake shoes 21 to move synchronously towards each other, thereby restoring them to their initial state for the next braking action.

[0054] As an optional implementation, the two ends of the elastic element 51 are respectively connected to the two brake shoes 21, and the elastic element 51 is set as a tension spring; when the two brake shoes 21 move synchronously in opposite directions, the elastic element 51 undergoes tensile deformation. By using a tension spring, the structure is made simpler while ensuring the braking effect.

[0055] Specifically, the number of tension springs is set to two, and two mounting holes are symmetrically arranged on the brake shoe 21. The two ends of the tension springs are respectively connected to the two mounting holes corresponding to the two brake shoes 21.

[0056] As an optional implementation, the rocker arm 4 is disposed on the outside of the hub assembly 1, and the connecting end of the rocker arm 4 is connected to the transmission assembly 3.

[0057] Specifically, the end of the mounting post 311 of the cam shaft 31 passes through the end wall of the hub assembly 1 and is connected to the connecting end of the rocker arm 4 by a threaded connector.

[0058] Example 3

[0059] This utility model provides an electric vehicle, specifically a two-wheeled electric vehicle, including the aforementioned hidden single-rocker arm hub motor braking structure.

[0060] Electric vehicles equipped with the aforementioned concealed single-rocker arm hub motor braking structure have significant braking performance, effectively improving the safety and reliability of electric vehicles.

[0061] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0064] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A concealed single-rocker arm hub motor braking structure, characterized in that, Includes wheel hub assembly, brake shoe assembly, transmission assembly, and rocker arm, among which: Both the brake shoe assembly and the transmission assembly are disposed within the wheel hub assembly. The brake shoe assembly includes a plurality of brake shoe blocks evenly distributed along the circumference, and all the brake shoe blocks are connected to the rocker arm through the transmission assembly. The rocker arm, through the transmission assembly, can drive all the brake shoes to move synchronously from the inside to the outside in the radial direction, and to contact the inner brake surface of the wheel hub assembly.

2. The concealed single-rocker arm hub motor braking structure according to claim 1, characterized in that, The number of brake shoes is set to two, and the two brake shoes are arranged opposite to each other; The rocker arm, through the transmission assembly, can drive the two brake shoes to move synchronously in opposite directions along the radial direction and to contact the inner braking surface of the wheel hub assembly.

3. The concealed single-rocker arm hub motor braking structure according to claim 2, characterized in that, Two transmission grooves are formed between the two brake shoes, and the transmission assembly includes a connector and two cam shafts, wherein: The two cam shafts are rotatably disposed in the two transmission grooves respectively. The two cam shafts are connected by the connector and rotate synchronously. One of the two cam shafts is connected to the rocker arm.

4. The concealed single-rocker arm hub motor braking structure according to claim 3, characterized in that, The cam shaft includes an integrally formed mounting post, a limiting plate, and a cam post, wherein: The inner wall of the hub assembly is provided with a mounting groove, the mounting post is rotatable in the mounting groove, and the connecting end of the mounting post is connected to the rocker arm. The limiting plate abuts against the opening of the mounting groove; The cam column is rotatably mounted in the corresponding transmission groove.

5. The concealed single-rocker arm hub motor braking structure according to claim 4, characterized in that, The limiting plate is provided with a connecting part, which is rotatably connected to the end of the connecting member.

6. The concealed single-rocker arm hub motor braking structure according to claim 2, characterized in that, The concealed single-rocker hub motor braking structure includes a return assembly, which is connected to the brake shoe assembly and can drive the two brake shoes to move synchronously in opposite directions along the radial direction.

7. The concealed single-rocker arm hub motor braking structure according to claim 6, characterized in that, The return assembly includes at least one elastic element, which is connected to the brake shoe. When the two brake shoes move synchronously in opposite directions, the elastic element deforms. The elastic element in a deformed state can drive the two brake shoes to move synchronously towards each other.

8. The concealed single-rocker arm hub motor braking structure according to claim 7, characterized in that, The two ends of the elastic element are respectively connected to the two brake shoes; When the two brake shoes move synchronously in opposite directions, the elastic element undergoes tensile deformation.

9. The concealed single-rocker arm hub motor braking structure according to claim 1, characterized in that, The rocker arm is disposed on the outside of the wheel hub assembly, and the connecting end of the rocker arm is connected to the transmission assembly.

10. An electric vehicle, characterized in that, The concealed single-rocker hub motor braking structure includes any one of claims 1 to 9.

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