Electric vehicle hub brake with double-brake structure

Abstract

The utility model relates to the technical field of electric vehicle hub brakes, in particular to an electric vehicle hub brake with a double-brake structure, which comprises a first brake hub, a second brake hub, a first brake pad, a second brake pad, a first brake shoe and a second brake shoe. A second brake pad is mounted at the top of the outer side of the second brake hub. A first brake shoe and a second brake shoe are arranged on the two sides of the interior of the first brake hub and the two sides of the interior of the second brake hub respectively, a first hydraulic cylinder and a second hydraulic cylinder are installed at the upper end and the lower end between the first brake shoe and the second brake shoe respectively, and a first friction lining is connected between the first brake shoe and the inner wall of the first brake hub. The novel electric vehicle hub brake is provided with an inner and outer double-brake structure, the brake function of an electric vehicle can be effectively kept when a single hub brake structure fails, and then the brake effect can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric vehicle hub brake technical field, concretely relates to a kind of electric vehicle hub brake with double braking structure. BACKGROUND

[0002] Electric vehicle hub brake is a kind of brake device commonly used on electric vehicle, generally is pushed by hydraulic pump, drives the brake block of two sides to prop open, and is pressed tightly on brake wheel to realize the effect of braking or deceleration, is formed brake with brake hub of close car wheel.

[0003] But traditional electric vehicle hub brake structure is single, single hub brake structure fails when braking, lack of structure for providing inner and outer double braking for electric vehicle hub brake, leading to not very good braking effect, for this, we propose a kind of electric vehicle hub brake with double braking structure. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides an electric vehicle hub brake with double braking structure, the utility model discloses electric vehicle hub brake is provided with the structure of inner and outer double braking, can effectively maintain the braking function of electric vehicle when single hub brake structure fails, to further be able to improve braking effect.

[0005] The utility model solves the technical scheme that it adopts to a kind of electric vehicle hub brake with double braking structure, including one brake hub, two brake hubs, one brake pad, two brake pads, one brake shoe and two brake shoes, the top of one brake hub outside is installed with one brake pad, the top of two brake hubs outside is installed with two brake pads;

[0006] The two sides in the inside of one brake hub and two brake hubs are provided with one brake shoe and two brake shoes respectively, the upper end and the lower end between one brake shoe and two brake shoes are installed with one hydraulic cylinder and two hydraulic cylinders respectively, one friction lining is connected between the inner wall of one brake shoe and one brake hub, two friction linings are connected between the inner wall of two brake shoes and one brake hub.

[0007] By adopting the above technical scheme, one hydraulic cylinder and two hydraulic cylinders can open one brake shoe and two brake shoes after operation, one brake shoe and two brake shoes can extrude one friction lining and two friction linings respectively, so that one friction lining and two friction linings can be closely combined with the inner wall of one brake hub or two brake hubs, to brake one brake hub or two brake hubs;

[0008] Personnel can brake one brake hub or two brake hubs on the outside of one brake hub or two brake hubs using one brake pad and two brake pads;

[0009] The first spring and the second spring can drive the first brake shoe and the second brake shoe to restore to the original position by using the elastic restoring force, and the first brake hub and the second brake hub can restore to rotate.

[0010] Specifically, the first brake hub and the second brake hub are provided with a central shaft, both ends of the central shaft are located in the interiors of the first brake hub and the second brake hub, and a bearing seat is sleeved on the periphery of the central shaft.

[0011] By adopting the above technical scheme, the central shaft serves to connect the first brake hub and the second brake hub, the bearing seat is sleeved on the periphery of the central shaft between the first brake hub and the second brake hub, so that the first brake hub and the second brake hub can rotate by relying on the central shaft in the non-braking state, and the first brake hub, the second brake hub and the central shaft can all stop rotating in the braking state.

[0012] Specifically, the first brake hub is provided with a first end cover on the outer side, and the second brake hub is provided with a second end cover on the outer side.

[0013] Specifically, the first end cover and the second end cover are connected with the first brake hub and the second brake hub by a first bolt and a second bolt respectively.

[0014] Specifically, the first brake shoe and the second brake shoe are connected with a first spring at the upper end and connected with a second spring at the lower end.

[0015] By adopting the above technical scheme, the first spring and the second spring can drive the first brake shoe and the second brake shoe to restore to the original position after the first brake shoe and the second brake shoe are pushed apart.

[0016] The beneficial effects of the utility model are as follows:

[0017] (1) The hydraulic cylinder and the second hydraulic cylinder can push apart the first brake shoe and the second brake shoe, the first brake shoe and the second brake shoe can extrude the first friction lining and the second friction lining respectively, the first friction lining and the second friction lining can be tightly attached to the inner wall of the first brake hub or the second brake hub, and then the first brake hub or the second brake hub can be braked.

[0018] (2) The first brake shoe and the second brake shoe can brake the first brake hub or the second brake hub on the outer side of the first brake hub or the second brake hub.

[0019] (3) The electric vehicle hub brake with a dual braking structure described in this utility model can use its elastic restoring force to drive the first brake shoe and the second brake shoe back to their original positions, so that the first brake hub and the second brake hub can resume rotation. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the connection structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the No. 1 brake hub of this utility model.

[0024] In the diagram: 1. Brake hub #1; 2. Brake hub #2; 3. Central shaft; 4. Brake pad #1; 5. Brake pad #2; 6. End cap #1; 7. End cap #2; 8. Bearing housing; 9. Bolt #1; 10. Bolt #2; 11. Friction lining #1; 12. Brake shoe #1; 13. Brake shoe #2; 14. Hydraulic cylinder #1; 15. Hydraulic cylinder #2; 16. Spring #1; 17. Spring #2; 18. Friction lining #2. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] To improve the braking performance and effectiveness of electric vehicle hub brakes through a dual-braking structure, such as... Figures 1-3 As shown, the electric vehicle hub brake with a dual braking structure of the present invention includes a first brake hub 1, a second brake hub 2, a first brake pad 4, a second brake pad 5, a first brake shoe 12, and a second brake shoe 13. The first brake pad 4 is installed on the top of the outer side of the first brake hub 1, and the second brake pad 5 is installed on the top of the outer side of the second brake hub 2.

[0027] A first brake shoe 12 and a second brake shoe 13 are respectively provided on both sides inside the first brake hub 1 and the second brake hub 2. A first hydraulic cylinder 14 and a second hydraulic cylinder 15 are respectively installed at the upper and lower ends between the first brake shoe 12 and the second brake shoe 13. A first friction lining 11 is connected between the first brake shoe 12 and the inner wall of the first brake hub 1, and a second friction lining 18 is connected between the second brake shoe 13 and the inner wall of the first brake hub 1.

[0028] In use, the first hydraulic cylinder 14 and the second hydraulic cylinder 15 can drive the first brake shoe 12 and the second brake shoe 13 to be separated, and the first brake shoe 12 and the second brake shoe 13 can press the first friction lining 11 and the second friction lining 18 respectively, so that the first friction lining 11 and the second friction lining 18 can be tightly attached to the inner wall of the first brake hub 1 or the second brake hub 2, and then the first brake hub 1 or the second brake hub 2 can be braked;

[0029] The personnel can brake the first brake hub 1 or the second brake hub 2 by using the first brake pad 4 and the second brake pad 5.

[0030] The first spring 16 and the second spring 17 can drive the first brake shoe 12 and the second brake shoe 13 to return to the original position by using the elastic restoring force, and the first brake hub 1 and the second brake hub 2 can return to rotate.

[0031] As shown in Figure 1 , Figure 2 , the first brake hub 1 and the second brake hub 2 are provided with a center shaft 3, both ends of the center shaft 3 are located in the interiors of the first brake hub 1 and the second brake hub 2 respectively, and the outer periphery of the center shaft 3 is sleeved with a bearing seat 8.

[0032] In use, the center shaft 3 serves to connect the first brake hub 1 and the second brake hub 2, the bearing seat 8 is sleeved on the outer periphery of the center shaft 3 between the first brake hub 1 and the second brake hub 2, so that the first brake hub 1 and the second brake hub 2 can rotate by relying on the center shaft 3 when not braked, and the first brake hub 1, the second brake hub 2 and the center shaft 3 can all stop rotating when braked.

[0033] As shown in Figure 1 , Figure 2 , the outer side of the first brake hub 1 is provided with a first end cover 6, and the outer side of the second brake hub 2 is provided with a second end cover 7.

[0034] In use, the first end cover 6 and the second end cover 7 can effectively prevent dust and oil stains from entering the interiors of the first brake hub 1 and the second brake hub 2.

[0035] As shown in Figure 1 , Figure 2 , the first end cover 6 and the second end cover 7 are connected with the first brake hub 1 and the second brake hub 2 by a first bolt 9 and a second bolt 10 respectively.

[0036] In use, the first bolt 9 and the second bolt 10 can detachably connect the first end cover 6 and the second end cover 7 with the first brake hub 1 and the second brake hub 2.

[0037] As an example, as shown in Figure 3 The upper end between the first brake shoe 12 and the second brake shoe 13 is connected with the first spring 16, and the lower end between the first brake shoe 12 and the second brake shoe 13 is connected with the second spring 17.

[0038] In use, the first spring 16 and the second spring 17 can drive the first brake shoe 12 and the second brake shoe 13 to return to the original position after the first brake shoe 12 and the second brake shoe 13 are pushed open.

[0039] In use, the personnel set the both ends of the central shaft 3 in the inside of the first brake hub 1 and the second brake hub 2, and detachably connect the first end cover 6 and the second end cover 7 with the first brake hub 1 and the second brake hub 2 by the first bolt 9 and the second bolt 10, so as to effectively prevent the dust and the oil stain from entering into the inside of the first brake hub 1 and the second brake hub 2.

[0040] Further, by the action of the central shaft 3, the first brake hub 1 and the second brake hub 2 are connected, and the first brake shoe 12 and the second brake shoe 13 can be pushed open by the first hydraulic cylinder 14 and the second hydraulic cylinder 15, and the first brake shoe 12 and the second brake shoe 13 can respectively extrude the first friction lining 11 and the second friction lining 18, so that the first friction lining 11 and the second friction lining 18 can be tightly attached to the inner wall of the first brake hub 1 or the second brake hub 2, and then the first brake hub 1 or the second brake hub 2 can be braked.

[0041] Further, the personnel can brake the first brake hub 1 or the second brake hub 2 outside by the first brake pad 4 and the second brake pad 5.

[0042] Further, after the first brake shoe 12 and the second brake shoe 13 are pushed open, the first spring 16 and the second spring 17 can drive the first brake shoe 12 and the second brake shoe 13 to return to the original position by the elastic restoring force, and the first brake hub 1 and the second brake hub 2 can return to rotate.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. The skilled in the art should understand that the utility model is not limited by the above examples, and the above implementation and the description in the specification are only to illustrate the principle of the utility model, and the utility model will have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle hub brake with a dual braking structure, characterized in that, It includes a first brake hub (1), a second brake hub (2), a first brake pad (4), a second brake pad (5), a first brake shoe (12) and a second brake shoe (13). The first brake hub (1) has a first brake pad (4) installed on the top of its outer side, and the second brake hub (2) has a second brake pad (5) installed on the top of its outer side. A first brake shoe (12) and a second brake shoe (13) are respectively provided on both sides inside the first brake hub (1) and the second brake hub (2). A first hydraulic cylinder (14) and a second hydraulic cylinder (15) are respectively installed at the upper and lower ends between the first brake shoe (12) and the second brake shoe (13). A first friction lining (11) is connected between the first brake shoe (12) and the inner wall of the first brake hub (1). A second friction lining (18) is connected between the second brake shoe (13) and the inner wall of the first brake hub (1).

2. The electric vehicle hub brake with a dual braking structure according to claim 1, characterized in that, A central shaft (3) is provided between the first brake hub (1) and the second brake hub (2). The two ends of the central shaft (3) are located inside the first brake hub (1) and the second brake hub (2), respectively. A bearing seat (8) is sleeved around the central shaft (3).

3. The electric vehicle hub brake with a dual braking structure according to claim 1, characterized in that, A first end cap (6) is installed on the outside of the first brake hub (1), and a second end cap (7) is installed on the outside of the second brake hub (2). The first end cap (6) and the second end cap (7) are connected to the first brake hub (1) and the second brake hub (2) respectively by a first bolt (9) and a second bolt (10).

4. The electric vehicle hub brake with a dual braking structure according to claim 1, characterized in that, A first spring (16) is connected to the upper end between the first brake shoe (12) and the second brake shoe (13), and a second spring (17) is connected to the lower end between the first brake shoe (12) and the second brake shoe (13).

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