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CN-122008730-A - Tricycle rear axle

CN122008730ACN 122008730 ACN122008730 ACN 122008730ACN-122008730-A

Abstract

The invention discloses a tricycle rear axle, which comprises a frame and a rear axle assembly, wherein a bearing group is arranged between the rear axle assembly and the frame, a mounting assembly is arranged between the rear axle assembly and the bearing group, a supporting assembly is arranged on the rear axle assembly, the rear axle assembly comprises a differential speed reducer assembly and an axle housing assembly, the supporting assembly comprises a protective cover, the protective cover is rotatably arranged on the axle housing assembly, the differential speed reducer assembly is arranged in the protective cover, a control piece is arranged on the protective cover, a rotary driving source and a fixing piece are arranged between the protective cover and the frame, the rotary driving source drives the protective cover to rotate, the protective cover is in a vertical state, the fixing piece bears and fixes the protective cover, the control piece drives the rear axle assembly to move downwards, and power transmission is carried out between the mounting assembly and the protective cover, so that when the protective cover rotates in the vertical state, the mounting assembly and the rear axle assembly are separated. The invention can protect the rear axle assembly and stably and quickly assemble and disassemble the rear axle assembly through the rotation of the protective cover.

Inventors

  • YU HAOBO
  • TANG MAOLIN
  • ZHANG JIAHUA
  • PI JUN
  • SU YUE
  • WANG PENG

Assignees

  • 重庆远贝科技有限公司

Dates

Publication Date
20260512
Application Date
20260409

Claims (10)

  1. 1. The rear axle of the tricycle comprises a frame (100) and a rear axle assembly (200), and a bearing group (300) arranged between the rear axle assembly (200) and the frame (100), and is characterized in that a mounting assembly (500) is arranged between the rear axle assembly (200) and the bearing group (300), and a supporting assembly (400) is arranged on the rear axle assembly (200); The rear axle assembly (200) includes a differential reducer assembly (210) and an axle housing assembly (220); The support assembly (400) comprises a protective cover (410), the protective cover (410) is rotatably arranged on the axle housing assembly (220), the differential speed reducer assembly (210) is arranged in the protective cover (410), a control piece (420) is arranged on the protective cover (410), a rotation driving source (430) and a fixing piece (440) are arranged between the protective cover (410) and the vehicle frame (100), the rotation driving source (430) drives the protective cover (410) to rotate, the protective cover (410) is in a vertical state, the fixing piece (440) bears and fixes the protective cover (410), and the control piece (420) drives the rear axle assembly (200) to move downwards; and the power transmission between the mounting component (500) and the protective cover (410) is used for separating the mounting component (500) from the rear axle assembly (200) when the protective cover (410) rotates to be in a vertical state, so that the rear axle assembly (200) is separated from the bearing group (300).
  2. 2. The rear axle of a tricycle according to claim 1, wherein the shield (410) comprises a protective baffle (411) and supporting side plates (412) on both sides, the output end of the rotation driving source (430) is hinged on the inclined surface of the protective baffle (411), the tail end is hinged on the frame (100), and the rotation driving source (430) drives the shield (410) to rotate around the sleeves on both ends of the axle housing assembly (220).
  3. 3. The rear axle of a tricycle according to claim 2, wherein the fixing member (440) comprises a hanging plate (441) and a retaining plate (442), the hanging plate (441) is fixedly mounted on the protective baffle (411), the retaining plate (442) is fixedly mounted on the frame (100), and when the protective cover (410) is rotated to be in a vertical state by the rotation driving source (430), the hanging plate (441) is attached to the retaining plate (442).
  4. 4. A rear axle of a tricycle according to claim 3, characterised in that the control member (420) comprises a bearing arc plate (421) and a movable driving source (422), a limit groove (423) is formed in the side face of the supporting side plate (412), the bearing arc plate (421) is slidably arranged in the limit groove (423), the sleeves at two ends of the axle housing assembly (220) are arranged on the bearing arc plate (421), a sliding block (424) is arranged on one side of the bearing arc plate (421), a guide groove (425) is further formed in the supporting side plate (412), the sliding block (424) is slidably arranged in the guide groove (425), a screw (426) is rotatably connected in the guide groove (425) through a bearing, the screw (426) is in threaded connection with the sliding block (424), and the movable driving source (422) is fixedly arranged on the supporting side plate (412) and the output end of the movable driving source is fixedly connected with the screw (426).
  5. 5. The rear axle of claim 4, wherein the limiting groove (423) comprises a vertical groove (427) and a horizontal groove (428), the guide groove (425) is positioned at one side of the vertical groove (427), and the axle housing assembly (220) moves out of the supporting side plate (412) through the horizontal groove (428) when moving in the vertical groove (427) to the junction between the horizontal groove (428) and the vertical groove (427).
  6. 6. A rear axle of a tricycle according to claim 5, characterised in that the mounting assembly (500) is mounted to the carrier (300) by means of lifting lugs (301); the installation component (500) includes two arc (501), fixedly connected with fixed axle (302) between two lug (301), and two arc (501) one end cup joints respectively on fixed axle (302) and articulated each other, and the torsional spring is installed to articulated department between two arc (501), and the tail end of two arc (501) is non-overlapping each other, and leaves the interval each other along arc extending direction, and the sleeve pipe of axle housing assembly (220) is located between two arc (501), and the tail end of arc (501) sets up the cambered surface.
  7. 7. The rear axle of a tricycle according to claim 6, characterized in that a plurality of ball carrier plates (502) are arranged on the inner side of the arc-shaped plate (501), a hinge plate (503) is arranged between the ball carrier plates (502) and the arc-shaped plate (501), the ball carrier plates (502) are hinged with the arc-shaped plate (501) through the hinge plate (503), torsion springs are arranged at the hinging positions, and the concave surfaces of the ball carrier plates (502) are arranged to be anti-slip surfaces.
  8. 8. The rear axle of a tricycle according to claim 7, wherein the mounting assembly (500) further comprises a fixed extrusion plate (504) and a movable extrusion plate (505), the fixed extrusion plate (504) and the movable extrusion plate (505) are sleeved on the axle housing assembly (220), one ends of the fixed extrusion plate (504) and the movable extrusion plate (505) which are in contact with each other are provided with inclined surfaces, the fixed extrusion plate (504) is fixedly mounted on the supporting side plate (412), the movable extrusion plate (505) is slidably arranged on a sleeve of the axle housing assembly (220) through a limiting track (506), the movable extrusion plate (505) is driven to move forwards when the fixed extrusion plate (504) rotates and enter an inner cavity formed by the two arc plates (501), one ends of the movable extrusion plate (505) are in contact with one ends of the ball bearing plates (502), and the ball bearing plates (502) are pushed to move towards the sleeve surface of the axle housing assembly (220) in the continuous forward movement process; The movable extrusion plate (505) is fixedly connected with a fixed plate (507) on the peripheral surface, one side of the fixed plate (507) is fixedly connected with a reset spring (508), and when the movable extrusion plate (505) enters the two arc plates (501), one end of the reset spring (508) is in contact with the lifting lug (301) and is in an extrusion state.
  9. 9. The rear axle of a tricycle according to claim 8, wherein the top ends of the two arc plates (501) are fixedly connected with a limit sleeve (509), one side of the fixing plate (507) is fixedly connected with two limit rods (510), and the limit rods (510) are sleeved in the limit sleeve (509).
  10. 10. The rear axle of a tricycle according to claim 9, wherein the concave surface of the arc-shaped plate (501) is provided with a plurality of clamping grooves (511), the outer surface of the movable extrusion plate (505) is fixedly connected with a plurality of clamping blocks (512), and the clamping blocks (512) are mutually matched with the clamping grooves (511).

Description

Tricycle rear axle Technical Field The invention relates to the technical field of vehicle engineering, in particular to a tricycle rear axle. Background The rear axle of the tricycle is a core assembly component at the tail end of a three-wheel transmission system, integrates five functions of power transmission, speed reduction, torque increase, differential steering, bearing support and braking, and is a key structure for determining the bearing capacity, the running stability and the power efficiency of the tricycle. The device is mainly arranged at the rear part of the vehicle body, is connected with the frame and the rear wheel, and bears the gravity, traction force, braking force and lateral force of the whole vehicle. The conventional installation and fixation mode between the tricycle body and the rear axle is that a leaf spring is hung and installed, namely, a leaf spring support is welded and fixed above a left bridge tube and a right bridge tube of the rear axle, an integral leaf spring is mounted below a frame girder, two ends of the leaf spring are hinged to a front frame and a rear frame through lifting lugs, pin shafts and rubber sleeves, a clamping point is clamped in the middle of a leaf spring, and the leaf spring is reversely locked on the rear axle support through a U-shaped bolt, but the conventional installation and fixation mode has the following defects: the conventional installation and fixation mode is that when the rear axle is replaced, the jack needs to be placed at the bottom of the rear axle for supporting, the horizontal supporting surface of the jack and the arc surface at the bottom of the rear axle are special-shaped contact surfaces, the joint degree of the jack and the arc surface is poor, only partial line contact or point contact is carried out, supporting stress is uneven, slipping and toppling easily occur in the jacking process, positioning is inaccurate, and the safety risk of disassembly and assembly is high. Therefore, how to provide a rear axle of a tricycle is a problem that needs to be solved by those skilled in the art. Disclosure of Invention The invention aims to provide a rear axle of a tricycle, which can protect a rear axle assembly and stably and quickly assemble and disassemble through rotation of a protective cover. The rear axle of the tricycle comprises a frame and a rear axle assembly, a bearing group is arranged between the rear axle assembly and the frame, a mounting assembly is arranged between the rear axle assembly and the bearing group, and a supporting assembly is arranged on the rear axle assembly; the rear axle assembly comprises a differential speed reducer assembly and an axle housing assembly; The support assembly comprises a protective cover, the protective cover is rotatably arranged on the axle housing assembly, the differential speed reducer assembly is arranged in the protective cover, a control piece is arranged on the protective cover, a rotation driving source and a fixing piece are arranged between the protective cover and the frame, the rotation driving source drives the protective cover to rotate, the protective cover is in a vertical state, the fixing piece is used for bearing and fixing the protective cover, and the control piece drives the rear axle assembly to move downwards; and the power transmission is carried out between the mounting assembly and the protective cover, so that when the protective cover rotates to be in a vertical state, the mounting assembly is separated from the rear axle assembly, and the rear axle assembly is separated from the bearing group. Further, the protection casing comprises a protection baffle and supporting side plates on two sides, the output end of the rotation driving source is hinged to the inclined surface of the protection baffle, the tail end of the rotation driving source is hinged to the frame, and the rotation driving source drives the protection casing to rotate by taking the sleeves at two ends of the axle housing assembly as the axle center. Further, the fixing piece comprises a hanging plate and a resisting plate, the hanging plate is fixedly arranged on the protective baffle, the resisting plate is fixedly arranged on the frame, and when the rotating driving source drives the protective cover to rotate to be in a vertical state, the hanging plate is attached to the resisting plate. Further, the control piece is including bearing the arc board and removing the actuating source, has seted up the spacing inslot to bear the side of the side board, bears the arc board and slides and locate the spacing inslot, and the sleeve pipe at axle housing assembly both ends is placed on bearing the arc board, bears arc board one side and is provided with the slider, has still seted up the guide slot on the support side board, and the slider slides and locates in the guide slot, is connected with the screw rod through the bearing rotation in the guide slot, screw rod and slider threaded con