阅读说明：本技术 微循环车用刚性电驱后桥轮边总成 (Rigid electric-driven rear axle wheel-side assembly for micro-cycle vehicle ) 是由 饶嘉彬 何名基 周大坤 王贵龙 黄焕超 何宾 陆匡伟 蒙仕 黄在璐 黄育荣 彭瑶 于 2020-04-26 设计创作，主要内容包括：一种微循环车用刚性电驱后桥轮边总成,涉及一种轮边总成,包括支撑架、轮毂及制动盘总成、轴承座总成、液压制动钳总成、安装板、ABS传感器,轴承座总成、安装板安装在支撑架上,液压制动钳总成、ABS传感器安装在安装板上；轴承座总成包括轴承座本体、单元轴承、孔用挡圈,轴承座本体的内孔一端为轴承孔,另一端为锥孔,轴承座本体还在轴承孔的外端开设有沟槽；单元轴承安装在轴承孔内,且单元轴承的外圈与轴承孔的孔径过盈配合,单元轴承的内圈与轮毂及制动盘总成过盈配合；孔用挡圈卡入轴承座本体的沟槽内。本发明具有结构紧凑、轮边维护周期短、装配精度高、维修容易、传动精度高、产品质量好等特点,可满足城市微循环公交发展要求。(A rigid electrically-driven rear axle wheel side assembly for a micro-cycle vehicle relates to a wheel side assembly, and comprises a support frame, a wheel hub and brake disc assembly, a bearing seat assembly, a hydraulic brake caliper assembly, a mounting plate and an ABS sensor, wherein the bearing seat assembly and the mounting plate are arranged on the support frame, and the hydraulic brake caliper assembly and the ABS sensor are arranged on the mounting plate; the bearing seat assembly comprises a bearing seat body, a unit bearing and a retainer ring for a hole, one end of an inner hole of the bearing seat body is a bearing hole, the other end of the inner hole of the bearing seat body is a taper hole, and the outer end of the bearing hole of the bearing seat body is provided with a groove; the unit bearing is arranged in the bearing hole, the outer ring of the unit bearing is in interference fit with the aperture of the bearing hole, and the inner ring of the unit bearing is in interference fit with the wheel hub and the brake disc assembly; the retainer ring for the hole is clamped in the groove of the bearing seat body. The invention has the characteristics of compact structure, short wheel edge maintenance period, high assembly precision, easy maintenance, high transmission precision, good product quality and the like, and can meet the development requirement of urban microcirculation public transport.)

1. The utility model provides an automobile-used rigidity of microcirculation drives rear axle wheel limit assembly electrically, includes support frame (1), bearing frame assembly (2), hydraulic pressure braking pincers assembly (4), mounting panel (5), ABS sensor (6), bearing frame assembly (2), mounting panel (5) pass through the fastener and install on support frame (1), hydraulic pressure braking pincers assembly (4), ABS sensor (6) are installed respectively on mounting panel (5), its characterized in that: the brake further comprises a hub and a brake disc assembly (3); the bearing seat assembly (2) is an integral unit bearing, the bearing seat assembly (2) comprises a bearing seat body (201), a unit bearing (202) and a retainer ring (203) for a hole, one end of an inner hole of the bearing seat body (201) is a bearing hole (2011), the other end of the inner hole is a taper hole (2012) for installing a driving shaft, the diameter of the small end of the taper hole (2012) is smaller than that of the bearing hole (2011), and the outer end of the bearing seat body (201) in the bearing hole (2011) is provided with a groove (2013); the unit bearing (202) is arranged in a bearing hole (2011), the outer ring of the unit bearing (202) is in interference fit with the aperture of the bearing hole (2011), and the inner ring of the unit bearing (202) is in interference fit with the wheel hub and the brake disc assembly (3); the retainer ring (203) for the hole is clamped in the groove (2013) of the bearing seat body (201).

2. The rigid electrically driven rear axle wheel-side assembly for a micro-cycle vehicle of claim 1, wherein: the hub and brake disc assembly (3) comprises a brake disc (301), a hub shaft (302) and a gear ring (303); the large end of the hub shaft (302) is arranged in the brake disc (301), and the small end of the hub shaft (302) is connected with the inner ring of the unit bearing (202) of the bearing seat assembly (2) in an interference fit manner; the gear ring (303) is tightly connected to the large end face of the brake disc (301).

3. The rigid electrically driven rear axle wheel-side assembly for a micro-cycle vehicle of claim 2, wherein: the hub shaft (302) is forged by alloy steel.

4. A rigid electrically driven rear axle wheel-rim assembly for a micro-cycle vehicle as defined in claim 1, 2 or 3, wherein: the hydraulic brake caliper assembly (4) adopts a driving/parking integrated brake caliper.

Technical Field

The invention relates to a wheel edge assembly, in particular to a rigid electric drive rear axle wheel edge assembly for a micro-cycle vehicle.

Background

The new energy automobile development trend is continuously expanded in recent years, green travel is vigorously pushed by the country, traffic planning is continuously developed, a plurality of large urban areas or communities are difficult to be effectively covered by public transportation, resident points and activity areas of the large communities are far away from public transportation points such as buses and subways, and travel is convenient to become a difficult point. A microcirculation public traffic system for the last kilometer of a passenger is created according to the transportation, the convenience of passenger public transportation travel is achieved, the passenger travel and public transportation operation efficiency is improved, and the problem of transfer and connection between traffic stations and tourist attractions which are far away from each other in the community is well solved. The microcirculation public transport is mainly driven by new energy, centralized power is used for driving, and a rigid rear axle is used as a support. However, the wheel rim of the rigid electrically-driven rear axle of the micro-cycle vehicle in the market at present generally adopts a structure that a drum brake, a common bearing and an ABS gear ring are arranged on a transmission shaft, the assembly and maintenance difficulty is high, the structure is not compact, the wheel rim maintenance period is short, and the later maintenance cost is high.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the rigid electrically-driven rear axle wheel edge assembly for the micro-cycle vehicle is provided, and the defects that in the prior art, the assembly and maintenance difficulty is high, the structure is not compact, the wheel edge maintenance period is short, and the later maintenance cost is high are overcome.

The technical scheme for solving the technical problems is as follows: the utility model provides an automobile-used rigidity of microcirculation drives rear axle wheel limit assembly electrically, includes support frame, bearing frame assembly, hydraulic pressure braking pincers assembly, mounting panel, ABS sensor, bearing frame assembly, mounting panel pass through the fastener and install on the support frame, hydraulic pressure braking pincers assembly, ABS sensor are installed respectively on the mounting panel, its characterized in that: the brake device also comprises a hub and a brake disc assembly; the bearing seat assembly is an integral unit bearing and comprises a bearing seat body, a unit bearing and a retainer ring for a hole, one end of an inner hole of the bearing seat body is a bearing hole, the other end of the inner hole of the bearing seat body is a taper hole for installing a driving shaft, the diameter of the small end of the taper hole is smaller than that of the bearing hole, and the outer end of the bearing hole of the bearing seat body is provided with a groove; the unit bearing is arranged in the bearing hole, the outer ring of the unit bearing is in interference fit with the aperture of the bearing hole, and the inner ring of the unit bearing is in interference fit with the wheel hub and the brake disc assembly; the hole is clamped in the groove of the bearing seat body by the retainer ring.

The further technical scheme of the invention is as follows: the wheel hub and brake disc assembly comprises a brake disc, a wheel hub shaft and a gear ring; the large end of the hub shaft is arranged in the brake disc, and the small end of the hub shaft is connected with the unit bearing inner ring of the bearing seat assembly in an interference fit manner; the gear ring is tightly connected to the large end face of the brake disc.

The invention has the further technical scheme that: the hub shaft is forged by alloy steel.

The invention has the further technical scheme that: the hydraulic brake caliper assembly adopts a driving/parking integrated brake caliper.

Due to the adoption of the structure, compared with the prior art, the rigid electric-driven rear axle wheel-side assembly for the micro-cycle vehicle has the following beneficial effects:

1. compact structure

The brake caliper comprises a support frame, a bearing seat assembly, a hydraulic brake caliper assembly, a mounting plate, an ABS sensor, a wheel hub and a brake disc assembly; the bearing seat assembly is an integral unit bearing and comprises a bearing seat body, a unit bearing and a check ring for a hole, wherein the outer ring of the unit bearing is in interference fit with the aperture of a bearing hole, and the inner ring of the unit bearing is in interference fit with the hub and the brake disc assembly as a rotating piece; the retainer ring for the hole is matched with the groove of the bearing seat body to prevent the unit bearing from axially moving. Because the outer ring of the existing hub unit bearing is fixed by using the bearing spacer and the end face of the half shaft, the invention fastens the outer ring of the bearing by installing a hole check ring in a groove of a bearing seat body, the hole check ring has a simplified structure relative to the bearing spacer, not only can reduce the weight of parts and the manufacturing cost, but also can adjust the clearance by using the thickness of the hole check ring. Therefore, the invention has compact structure, realizes light weight, lightens unsprung mass and improves the operation stability of the whole vehicle. And because overall structure is compact, still can enlarge chassis spatial arrangement.

2. Short wheel edge maintenance period

The bearing seat assembly is an integral unit bearing and comprises a bearing seat body, the unit bearing and the retainer ring for the hole, wherein the unit bearing is of a maintenance-free bearing structure, the wheel edge maintenance period is short, and the wheel edge maintenance mileage is increased, so that the later maintenance cost is greatly reduced.

3. High assembly precision, easy assembly and maintenance

The brake caliper comprises a support frame, a bearing seat assembly, a hydraulic brake caliper assembly, a mounting plate, an ABS sensor, a wheel hub and a brake disc assembly; all parts are connected by fasteners, and the parts are taken as main body supporting pieces through a supporting frame, wherein a bearing seat body, a unit bearing and a retainer ring for a hole form a bearing seat assembly; the brake disc, the hub shaft and the gear ring form a hub and brake disc assembly. Therefore, the assembly of the invention can be divided into two small assemblies for assembly, the assembly beat of the assembly parts can be reduced, and the assembly precision can be improved. And the small assembly modularization can realize easy assembly and disassembly, and the assembly and the maintenance are convenient. In addition, compared with the traditional way of connecting the brake disc with the hub, the brake disc is externally arranged and connected with the hub shaft, so that the disassembly, the maintenance and the inspection are more convenient, the disassembly working procedures and working hours are reduced, and the after-sale cost is reduced.

4. High transmission precision

The invention discloses a hub and brake disc assembly, which comprises a brake disc, a hub shaft and a gear ring; wherein the ring gear is direct fastening connection on the main aspects terminal surface of brake disc, compares traditional installation on the transmission shaft, can effectively reduce the transmission shaft dynamic unbalance out-of-tolerance, improves the transmission precision.

5. The product quality is good

The hub shaft is forged by alloy steel, and compared with the traditional gray cast iron casting, the strength and the toughness of the hub shaft are greatly improved, and the hub shaft can bear larger load.

In addition, the hydraulic brake caliper assembly adopts a driving/parking integrated brake caliper, and has small cylinder diameter and large lever ratio; the brake caliper integrates parking and service braking functions, simplifies the caliper body structure, realizes light weight, and is superior to the performance of a transmission drum brake.

6. Can meet the requirement of urban microcirculation public transportation development

The invention has the characteristics of low emission, light weight and good operation stability, and has a maintenance-free wheel edge structure, thereby meeting the development requirement of urban microcirculation public transport.

The technical features of the rigid electrically-driven rear axle wheel-rim assembly for a micro-cycle vehicle according to the present invention will be further described with reference to the accompanying drawings and examples.

Drawings

FIG. 1: the structure of the rigid electric driven rear axle wheel edge assembly for the micro-cycle vehicle of the present invention is schematically shown,

FIG. 2: in the right-hand side view of figure 1,

FIG. 3: embodiment a schematic structural view of the bearing seat assembly,

FIG. 4: embodiment one structural schematic diagram of the bearing seat body,

FIG. 5: embodiment a structural schematic view of the hub and brake disc assembly,

in the above drawings, the reference numerals for the various parts are as follows:

1-a support frame, wherein the support frame,

2-a bearing seat assembly, wherein the bearing seat assembly comprises a bearing seat,

201-bearing seat body, 2011-bearing hole, 2012-taper hole, 2013-groove, 2014-spigot, 2015-unthreaded hole,

202-unit bearing, 203-retainer ring for hole,

3-a wheel hub and a brake disc assembly,

301-brake disc, 302-hub axle, 303-ring gear, 304-countersunk head screw, 305-tyre bolt, 306-socket head cap screw iii,

4-a hydraulic brake caliper assembly, wherein,

5-mounting plate, 6-ABS sensor,

7-inner hexagonal screw I, 8-inner hexagonal screw II, 9-outer hexagonal bolt and 10-heavy spring washer.

Detailed Description