Brake axle assembly of electro-tricycle

Abstract

The utility model relates to the field of brake systems of electro-tricycles, in particular to a brake axle assembly of an electro-tricycle, which comprises an axle body, a rocker arm and a bearing seat, and the cross section of the axle body is of a polygonal structure with at least four sides; the rocker arm is provided with a connecting hole matched with the cross section of the shaft body in shape and a fastening part used for fastening the connecting hole, and the rocker arm is fixedly connected with the shaft body; the bearing seat is rotationally connected with the shaft body, the inner diameter shape of a bearing of the bearing seat is matched with the outer diameter shape of the shaft body, and the bearing seat is fixedly connected with a vehicle body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric tricycle brake, specifically discloses a kind of electric tricycle brake axle assembly. BACKGROUND

[0002] Currently, the brake axle of electric tricycle is mostly in the form of a round tube. When the brake rocker arm is connected with the brake axle, the two are usually welded together, or a connecting part is arranged at the two ends of the brake axle, and the mounting part of the rocker arm is arranged in a structure capable of being mounted with the connecting part to realize detachable connection of the brake rocker arm and the brake axle.

[0003] The welding method is used to connect the brake rocker arm and the brake axle, which increases the stability of the connection between the brake axle and the brake rocker arm to some extent and improves the connection strength. However, when the brake axle, the rocker arm or the bearing needs to be repaired, it is very inconvenient to disassemble and assemble, which causes damage to the above structure. The connecting part is arranged to realize the detachable connection of the rocker arm and the brake axle, which increases the processing procedure of the brake axle and the production cost, and the connecting part is usually connected with the brake axle by welding, which affects the coaxiality of the two.

[0004] There is an urgent need for a brake axle assembly to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] To solve the above technical problems, the utility model provides an electric tricycle brake axle assembly, which sets the brake axle in a polygonal structure and connects the brake rocker arm and the brake axle in a detachable manner to facilitate disassembly and maintenance of each component of the brake axle assembly.

[0006] The utility model adopts the technical scheme of an electric tricycle brake axle assembly, which comprises:

[0007] The shaft body has a cross section in the form of a polygon with not less than four sides;

[0008] The rocker arm has a connecting hole matching the cross-sectional shape of the shaft body and a fastening component for fastening the connecting hole, and the rocker arm is connected and fixed with the shaft body.

[0009] The bearing seat is rotatably connected with the shaft body, the bearing inner diameter of the bearing seat matches the outer diameter of the shaft body, and the bearing seat is connected and fixed with the vehicle body.

[0010] Further, the cross section of the shaft body is in the form of a quadrilateral, a pentagon, a hexagon, a heptagon or an octagon.

[0011] Further, the shaft body is in the form of a hollow tube.

[0012] Further, the rocker arm comprises a rocker arm body, a connecting hole and a mounting hole group, the mounting hole group comprises a plurality of connecting holes, respectively used for front brake and rear brake.

[0013] Further, the connecting hole is provided with an opening, the fastening component is arranged at the opening, and the fastening component comprises a clamping plate, a fastening rod and a fastening nut; the clamping plate is fixedly connected with the opening respectively, the clamping plate is symmetrically provided with holes, the fastening rod passes through the holes and is fastened and fixed through the fastening nut.

[0014] Further, the bearing seat comprises two symmetrically arranged housings and a bearing, and the bearing is arranged in a bearing chamber formed by the housings.

[0015] Further, the housing is respectively provided with a cavity and a flange, the bottom surface of the cavity protrudes to one side by a distance relative to the flange, the center of the bottom surface of the cavity is provided with a shaft hole, and the diameter of the shaft hole is slightly smaller than the diameter of the outer ring of the bearing.

[0016] Further, the bearing comprises an inner ring, an outer ring, balls, a skeleton and a sealing ring, and the inner diameter of the inner ring is in a quadrilateral, pentagonal, hexagonal, heptagonal or octagonal structure.

[0017] Further, at least one end of the inner ring of the bearing protrudes axially from the outer ring of the bearing to form a fastening segment, the fastening segment is provided with a fastening screw perpendicular to the central axis, and the fastening screw acts on the shaft body through the inner ring.

[0018] The beneficial effects of the utility model are: the brake shaft is provided with a polygonal rod structure, the connecting hole of the rocker arm is provided with a matching shape, the two can be matched and installed, the rocker arm is prevented from rotating relative to the brake shaft, the stability and reliability of the connection of the two are improved, the fastening component of the rocker arm can effectively prevent the rocker arm from moving axially relative to the brake shaft, the reliability of the connection of the two is further improved, the inner diameter of the inner ring of the bearing seat is provided with a structure matching the cross-sectional shape of the brake shaft, the brake shaft is prevented from rotating relative to the inner ring of the bearing, the fastening screw makes the brake shaft and the inner ring of the bearing more firmly connected and prevents the two from moving axially, compared with the traditional round rod, the polygonal brake shaft does not need to be made into a connecting head, the structure is simplified, and the process difficulty is reduced, the brake shaft adopts a hollow structure, the weight of the brake shaft is reduced, and the material is saved, the rocker arm, the bearing seat and the brake shaft are connected in a detachable mode, the vehicle can be conveniently disassembled and modified, the components and the vehicle body are not damaged during disassembly, and the service life of the vehicle is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of a brake shaft assembly of an electric tricycle;

[0020] Figure 2A-A sectional view of the shaft body;

[0021] Figure 3 A-A sectional view of the shaft body;

[0022] Figure 4 A-A sectional view of the shaft body; Figure 3 A-A sectional view of the shaft body;

[0023] Figure 5 A-A sectional view of the shaft body; A-A sectional view of the shaft body;

[0024] A-A sectional view of the shaft body; Figure 6 A-A sectional view of the shaft body; A-A sectional view of the shaft body;

[0025] A-A sectional view of the shaft body; Figure 7 A-A sectional view of the shaft body; Figure 6 A-A sectional view of the shaft body; A-A sectional view of the shaft body;

[0026] A-A sectional view of the shaft body; Figure 8 A-A sectional view of the shaft body; A-A sectional view of the shaft body;

[0027] A-A sectional view of the shaft body; Figure 9 A-A sectional view of the shaft body; A-A sectional view of the shaft body;

[0028] A-A sectional view of the shaft body; A-A sectional view of the shaft body;

[0029] A-A sectional view of the shaft body; A-A sectional view of the shaft body;

[0030] A-A sectional view of the shaft body; A-A sectional view of the shaft body;

[0031] A-A sectional view of the shaft body; A-A sectional view of the shaft body; A-A sectional view of the shaft body;

[0032] The utility model will be further described in connection with the drawings and examples. A-A sectional view of the shaft body;

[0033] A-A sectional view of the shaft body; Figure 1 The utility model provides a brake shaft assembly of electric tricycle, including: shaft body 1, rocker 2 and bearing seat 3. A-A sectional view of the shaft body;

[0034] The cross section of the shaft body 1 is polygonal structure of no less than four sides, and the shaft body 1 of the embodiment is provided as hexagonal hollow tubular structure. A-A sectional view of the shaft body;

[0035] The rocker arm 2 is usually installed at both ends and the middle of the shaft body 1. In the embodiment, the rocker arms 2 at both ends are arranged in a detachable structure, and the rocker arm 2 at the middle is arranged in a fixed structure by welding with the shaft body 1. The rocker arm 2 comprises a rocker arm body 21, a connecting hole 22, and a mounting hole group 23 comprising a plurality of mounting holes for connecting front and rear brakes. The connecting hole 22 of the rocker arm 2 has a hexagonal inner diameter shape matching the cross-sectional shape of the shaft body 1, and is provided with a fastening component. The connecting hole 22 is arranged in a structure with an opening 221, and the two sides of the opening 221 are respectively connected with clamping plates 222. The fastening component 4 comprises a fastening rod 41 and a fastening nut 42; the clamping plates 222 are respectively fixedly connected with the opening 222, and the clamping plates 222 are symmetrically provided with holes 223, the fastening rod 41 passes through the holes 223 and is fastened and fixed by the fastening nut 42. The rocker arm 2 is connected and fixed by the fastening component 4 after being sleeved with the shaft body 1 through the connecting hole 22, so as to prevent the rocker arm 2 from moving axially relative to the shaft body 1.

[0036] The bearing seat 3 is rotationally connected with the shaft body 1. The bearing seat 3 comprises two symmetrically arranged housings 31 and bearings 32. The housing 31 is respectively provided with a cavity 311 and a flange 312. The bottom surface of the cavity 311 protrudes to one side by a distance relative to the flange 312. The center of the bottom surface of the cavity 311 is provided with a shaft hole 313. The diameter of the shaft hole 313 is slightly smaller than the diameter of the outer ring of the bearing 32, so as to play a role of axially limiting the bearing 32. The housings 31 are connected through the flanges 312, and the two cavities 311 form a bearing chamber. The bearing 32 is arranged in the bearing chamber formed by the housings 31.

[0037] The bearing 32 comprises an inner ring 321, an outer ring 322, balls 323, a skeleton (not shown in the figure), and a sealing ring 324. The inner diameter of the inner ring 321 has a hexagonal cross-sectional shape, and is installed in a clearance fit with the shaft body 1. At least one end of the inner ring 321 of the bearing 32 protrudes axially from the outer ring 322 to form a fastening segment. The fastening segment is provided with a fastening screw 325 perpendicular to the central axis. The fastening screw 325 passes through the inner ring 321 and acts on the shaft body 1, so as to prevent the shaft body 1 from rotating relative to the inner ring 321.

[0038] In other embodiments, the cross-sectional shape of the shaft body 1 and the inner diameter shape of the connecting hole 22 of the rocker arm and the inner diameter shape of the inner ring 321 of the bearing 32 can also be matched and arranged in a quadrilateral, pentagonal, heptagonal, and octagonal structure.

[0039] The rocker arm 2 is arranged as a single arm (such as shown in FIG. 1) or a double arm (such as shown in FIG. 2) according to actual practical conditions. Figure 9 The rocker arm 2 is arranged as a single arm (such as shown in FIG. 1) or a double arm (such as shown in FIG. 2) according to actual practical conditions. Figure 3The rocker arm can be provided in a structure of a single arm (not shown) or a multi-arm (not shown), and can be provided in a structure of a bottom end bifurcation (as shown in Figure 4 or a side tilting (as shown in Figure 8 The rocker arm can be provided in a structure of a single arm (not shown) or a multi-arm (not shown), and can be provided in a structure of a bottom end bifurcation (as shown in

[0040] The above examples are not a limitation of the utility model, but are used for illustrating the content of the utility model.

Claims

1. An electric tricycle brake axle assembly, characterized by, The application relates to a shaft body, a rocker arm and a bearing seat. The shaft body has a polygonal structure with not less than four sides. The rocker arm has a connecting hole matched with the cross-sectional shape of the shaft body and a fastening component for fastening the connecting hole. The bearing seat is rotationally connected with the shaft body.

2. An electric tricycle brake axle assembly according to claim 1, wherein, The cross-sectional shape of the shaft body is a quadrilateral, pentagon, hexagon, heptagon or octagon structure.

3. An electric tricycle brake shaft assembly according to claim 1 or 2, wherein, The shaft body is a hollow pipe structure.

4. The electric tricycle brake axle assembly of claim 1, wherein, The rocker arm comprises a rocker arm body, a connecting hole and a mounting hole group.

5. The electric tricycle brake axle assembly of claim 1, wherein, The connecting hole is provided with an opening, and the fastening component is arranged at the opening.

6. The electric tricycle brake axle assembly of claim 1, wherein, The fastening component comprises a clamp plate, a fastening rod and a fastening nut.

7. The electric tricycle brake axle assembly of claim 6, wherein, The clamp plate is fixedly connected with the opening.

8. The electric tricycle brake axle assembly of claim 6, wherein, The fastening rod passes through the hole and is fastened and fixed by the fastening nut.

9. The electric tricycle brake axle assembly of claim 6, wherein, The bearing seat comprises two symmetrically arranged housings and a bearing. The housing is provided with a chamber and a flange. The bottom surface of the chamber protrudes to one side by a distance relative to the flange. The center of the bottom surface of the chamber is provided with an axle hole. The diameter of the axle hole is slightly smaller than the diameter of the bearing outer ring. The bearing comprises an inner ring, an outer ring, balls, a skeleton and a sealing ring. The cross-sectional shape of the inner diameter of the inner ring is a quadrilateral, pentagon, hexagon, heptagon or octagon structure. At least one end of the bearing inner ring protrudes axially from the bearing outer ring to form a fastening section. The fastening section is provided with a fastening screw perpendicular to the central axis. The fastening screw passes through the inner ring and acts on the shaft body.

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