CN111661091A

CN111661091A - Monorail overhead tourist car bogie and driving axle group mechanism and disassembling method

Info

Publication number: CN111661091A
Application number: CN202010405561.5A
Authority: CN
Inventors: 霍育锋; 张宁; 张永亮; 张冲; 邓元岗
Original assignee: China Railway Baoji Bridge Group Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-09-15

Abstract

The invention relates to a bogie of a monorail aerial tourist car, a driving wheel set mechanism and a dismounting method, wherein a driving motor and a reduction gearbox are connected and installed at the side end of the bogie, an output shaft of the reduction gearbox is connected with a driving wheel set, one end of a coupler is connected with the output shaft of the reduction gearbox, and the other end of the coupler is connected with the driving wheel set; two groups of guide wheel devices are respectively arranged at the front end and the rear end of the framework, a group of stabilizing wheel groups are respectively arranged at the lower parts of the two side ends of the framework, a group of rescue wheel wheels are respectively arranged at the front end and the rear end of the framework, and the brake is arranged on a brake shaft or a driving shaft of the speed reducer. The advantages are that: the vehicle can run on a single track, and the wheel set can be quickly disassembled and assembled. The axle device is arranged on the upper and lower split axle boxes in a clamping groove manner, and the driving wheel set is conveniently and quickly detached from the framework; the use of the bilateral sealed railway bearing effectively reduces the frequency of midway lubrication of the bearing, each component on the driving wheel shaft adopts a stepped mounting structure, and after the wheel set is integrally disassembled, each component part of the driving wheel set can be sequentially disassembled.

Description

Monorail overhead tourist car bogie and driving axle group mechanism and disassembling method

Technical Field

The invention relates to a bogie of a monorail overhead tourist car, a driving wheel shaft structure of the bogie and a dismounting method, which can solve the problems of difficulty in dismounting and mounting of a driving wheel set, replacement of tires and the like in the maintenance process of the bogie, and belongs to the field of manufacturing of monorail overhead tourist cars.

Background

CN202863441U entitled Power bogie Driving device for monorail sightseeing train, comprising a main frame, and wheel sets, hollow shafts, brake disks, brakes, speed reduction motors, driving shafts and driving flanges which are arranged on the main frame; the hollow shaft is fixed on the main framework; the wheel set is sleeved on the hollow shaft and is a standard industrial rubber wheel; the driving shaft is supported by a bearing in the hollow shaft and is in key connection with the driving flange; a brake disc is arranged between the driving shaft and the speed reducing motor, and the brake disc and the driving shaft are connected through a key; the speed reducing motor is arranged on the side surface of the main framework through the anti-torsion bracket, and the output torque of the speed reducing motor is transmitted to the driving flange through the driving shaft. The method has the following defects: the cantilever structure is the hollow shaft structure, and the processing degree of difficulty is great for parts such as hollow shaft, and the installation centering requires highly, and use cost is higher, drops into characteristics such as big, is not suitable for miniature overhead tourist car to use.

CN105416331B entitled "a straddle type monorail bogie without a series of springs" comprises a framework (4), a traction device (11), a foundation brake device, a vibration damper, a gear box (5), a stabilizing wheel (2), a guide wheel (3) and a traveling wheel (9) which are arranged on the framework (4); the traction motor (6) and the gear box (5) which are longitudinally arranged are directly and rigidly suspended on the outer side of the framework, and an output shaft of the gear box (5) is connected with an axle through a split type coupling; the framework is provided with a split type axle box body consisting of an upper axle box body (15) and a lower axle box body (16), the upper axle box body (15) and the lower axle box body (16) are detachably and fixedly connected, and the upper axle box body (15) is fixed on the framework (4) and is used for installing the basic brake device; the upper shaft box body (15) is used as one part of a framework side beam (19) and is welded with a lower cover plate (17) of the framework (4) into a whole through a butt welding seam (20); the coupling (12) is a wedge-shaped rubber coupling or a tooth-type coupling; the axle (14) is an integral solid axle, and two ends of the axle (14) are supported by bearings and are connected with the framework (4) through an axle box body; one end of the coupling (12) is in interference connection with one end of the axle, and the other end of the coupling (12) is connected with the gear box through face teeth; the framework (4) is of an all-welded box type structure, and a lower cover plate of the framework (4) is fixedly connected with the upper shaft box body (15); a hanging point of a basic braking device is arranged on an upper shaft box body (15) of the framework (4); the walking wheels (9), the stabilizing wheels (2) and the guide wheels (3) are all rubber wheels. The method has the following defects: the function of replacing the running wheel pair without lifting a vehicle (not disassembling a bogie and a vehicle body) is mainly realized, the whole set of running wheel pair needs to be prefabricated in advance for standby replacement, and the standby running wheel pair is quick but high in use cost; in the patent, a facility for integrating a safety wheel in a running wheel needs to customize a special running tire, and the tire universality is poor. The axle box is for fixed connection under axle box apron on this patent's components of a whole that can function independently axle box and framework, goes up axle box and framework welding back axle box and need with the whole processing axle box size of framework, and the technology degree of difficulty is great, and the processing cost is high. The steering knuckle structure is suitable for urban rail traffic products and is not suitable for overhead touring cars. Secondly, the double-side axle box structure adopted by the patent generally adopts a solid shaft structure, bearing boxes at two ends of the solid shaft are bolted with a framework by using fastening bolts, a driving motor and a speed reducer are firstly dismounted when a wheel shaft is dismounted, then the axle box, a wheel set, a bearing, a driving flange and other parts are sequentially dismounted, the workload is large during dismounting, the number of dismounted parts is large, and the dismounting is not suitable for frequent tire dismounting maintenance; the axle box uses oiling formula lubrication, need regularly to inspect the lubrication, and it is higher to maintain the maintenance frequency.

Disclosure of Invention

The design purpose is as follows: the defects in the prior art are avoided, the bogie of the monorail aerial tourist car and the bogie driving wheel shaft structure capable of solving the problems that a driving wheel set is disassembled and assembled and tires are difficult to replace in the bogie maintenance process are designed, namely the bogie and the wheel shaft mechanism can realize the walking of a vehicle on a straddle type monorail beam, the wheel shaft device is provided with an upper axle box structure and a lower axle box structure through a clamping groove type, the driving wheel set can be conveniently and quickly disassembled from a framework, the bilateral sealed railway bearing is used, the midway lubricating frequency of the bearing can be effectively reduced, each component on the driving wheel shaft adopts a stepped mounting structure, after the wheel set is integrally disassembled, other parts do not need to be disassembled, and the tire component can be conveniently disassembled.

The design scheme is as follows: in order to achieve the above design objectives. The invention relates to a monorail aerial tourist car bogie which is structurally designed and mainly comprises a driving motor, a speed reducer, a braking system, a driving wheel set, a framework, a guide wheel set, a stabilizing wheel set, a rescue wheel set and the like; the bogie is a single-shaft bogie and has good curve passing performance; the running tire is a pneumatic tire, and meets the requirements of vehicle bearing and comfort; the traction motor and the speed reducer are arranged on the side surface of the framework in a hanging manner; the output shaft of the speed reducer is connected with the driving wheel set through a coupler, a disc brake is adopted for braking, and the brake is arranged on a braking shaft or a driving shaft of the speed reducer; 2 groups of guide wheels are respectively arranged at the front end position and the rear end position of the bogie; two sides of the bogie are respectively provided with 1 group of stabilizing wheels, so that the requirements of guiding and overturn prevention in the running process of the bogie are met, and the guiding wheels and the stabilizing wheels are all solid rubber tires. Rescue wheel devices are arranged at the front end position and the rear end position of the bogie respectively, so that the emergency use requirement under the emergency condition is met.

The bogie driving wheel set is bolted with the bogie frame by virtue of an axle box and is connected with the wheel hub by virtue of a connecting flange, and the connecting flange is connected with the driving shaft by virtue of a spline and is locked with the driving shaft by virtue of a round nut and a fastening gasket; two groups of railway tapered roller bearings with seals are mounted at two ends of the driving shaft, and the bearings are free of maintenance in the service life; the axle box is arranged on bearings at two ends, a clamping groove type upper bearing box and a clamping groove type lower bearing box are adopted, an axle box mounting seat is arranged on a framework cross beam, an upper axle box is arranged in a clamping groove of the mounting seat, and the lower axle box is connected with the framework by bolts; the drive shaft is fitted with the components as shown in figure 2.

The technical scheme 1: a single-rail overhead tourist car bogie and a driving wheel shaft group mechanism are disclosed, wherein a driving motor and a reduction gearbox are connected and installed at the side end of the bogie, an output shaft of the reduction gearbox is connected with a driving wheel group by using a coupler, the coupler consists of a left coupler and a right coupler and is connected by bolting, one end of the coupler is connected with the output shaft of the reduction gearbox, and the other end of the coupler is connected with the driving wheel group; two groups of guide wheel devices are respectively arranged at the front end and the rear end of the framework, a group of stabilizing wheel groups are respectively arranged at the lower parts of the two side ends of the framework, a group of rescue wheel wheels are respectively arranged at the front end and the rear end of the framework, and the brake is arranged on a brake shaft or a driving shaft of the speed reducer.

The technical scheme 2 is as follows: a quick disassembling method for a driving wheel set and a framework in a bogie of a monorail aerial tourist coach and a driving wheel set mechanism is characterized in that one end of a coupler is connected with an output shaft of a reduction gearbox, the other end of the coupler is connected with a driving wheel shaft 4, a coupler 2 is connected with two shafts through splines, bosses are arranged at two ends of an upper shaft box body 3-1 in the framework 8 and positioned, the end face of a shaft box mounting seat 8-1 on the framework 8 is positioned in a groove, the boss of the upper shaft box body 3-1 can be inserted into the groove of the framework shaft box mounting seat 8-1, the driving wheel set 4 can be installed by using a fastening bolt and a lower shaft box body 3-2, the bolt and the lower shaft box body 3-2 at two ends are disassembled, the coupler 2 is disconnected, the driving wheel set 4 falls down by using a tool, the driving wheel set.

Compared with the background art, the single-axle bogie has good curve passing performance, and the travelling tire can improve the running comfort of the vehicle by using the pneumatic tire; secondly, the guide wheels and the stabilizing wheel set use solid rubber tires to simplify the structure of the bogie, and the arrangement of the vehicle structure is easy; thirdly, the double-side sealed railway bearing is adopted, so that the maintenance and lubrication frequency of the bearing in the midway is effectively reduced; fourthly, all parts of the driving wheel shaft adopt a stepped mounting structure, and after the driving wheel shaft is removed, other parts do not need to be removed, so that the tire assembly is conveniently removed and the tire is replaced; fifthly, the axle box clamping groove type structure is convenient for the driving axle assembly to be assembled and disassembled at the position of the bogie frame; sixth, adopt upper and lower combination formula axle box structure, demolish the dismouting that can realize the driving wheel group behind the lower axle box, the use of cooperation shaft coupling can realize the quick dismantlement of driving wheel axle, conveniently maintains the maintenance.

Drawings

FIG. 1 is a schematic view of a monorail aerial tourist car bogie.

Fig. 2 is a schematic structural diagram of a driving wheel set.

Fig. 3 is a side view schematic of fig. 2.

Fig. 4 is a schematic structural diagram of a driving wheel set.

FIG. 5 is a schematic view of the upper shaft box.

FIG. 6 is a schematic view of the lower axle housing.

Detailed Description

Example 1: reference is made to figures 1-6. The whole structure of the bogie is as shown in fig. 1, the bogie is composed of the above assembly parts, wherein a single-axle and double-axle-box overhead tourist car bogie is preferred; the driving motor 3 is connected with the reduction gearbox 1 and is arranged at the side end of the bogie, and the motor can be selectively provided with a permanent magnet synchronous motor or other types of traction motors.

The output shaft of the reduction gearbox 1 is connected with the driving wheel set 4 through a spline by using a coupler 2, and the coupler 2 consists of a left coupler and a right coupler which are connected through a bolt. One end of the coupler is connected with an output shaft of the reduction gearbox, the other end of the coupler is connected with a driving wheel shaft 4, and the coupler and the two shafts are connected through splines. The framework 8 is formed by assembling plate structure by compression and tailor welding, bosses are arranged at two ends of the upper shaft box body 3-1 for positioning, the end face of the shaft box mounting seat 8-1 on the framework 8 is positioned by a groove, the boss of the upper shaft box body 3-1 can be inserted into the groove of the framework shaft box mounting seat 8-1, and the driving wheel group 4 can be mounted by using a fastening bolt and the lower shaft box body 3-2. When the driving wheel set is disassembled, the driving wheel set can be disassembled from the framework by disassembling the bolts and the lower box body and disconnecting the coupler.

The driving wheel set 4 consists of a driving wheel, a connecting flange, a front end cover, a rear end cover, a locking device, an axle box, a bearing and the like; the connecting flange 4-4 is connected with the axle 4-5 through a spline, and is positioned and locked on the axle by using a locking device 4-3, wherein 4-3 is a combination form of a round nut and a check washer; the bearing 4-2 is pressed and assembled at two ends of the axle by a press-fitting machine, wherein the bearing 4-2 is a railway bearing with a sealing form, lubricating grease is filled when the bearing leaves a factory, and the bearing can be free of maintenance in the operation process; the bearing is installed and clamped in the positioning grooves of the upper and lower axle boxes; the wheel assemblies 4-8 can be inserted from the front end cover side through bearings and bolted to the attachment flange using fastening bolts. The driving wheel set is assembled in a step-type mode, and components on the wheel set can be disassembled step by step, so that the installation and maintenance are convenient. The rear end cover 4-6 is positioned at one side of the bearing 4-2.

The quick dismantlement of driving wheel group can be realized to the connected mode of driving wheel group and framework, and the dismouting flow of driving wheel group is as follows: supporting a steering frame member, disconnecting a coupler, removing a lower shaft box body at two ends, dropping a driving wheel set by using a tool, and replacing parts of the driving wheel set.

The structure scheme can realize the disassembly of the driving wheel shaft under the state of not disassembling the bogie and the vehicle body, and can realize the process of replacing parts such as wheels without lifting the vehicle by matching with a special disassembly station.

Other components of the bogie: the front end and the rear end of the framework 8 are respectively provided with 2 groups of guide wheel devices 6, the guide requirements of the front form and the rear form of the bogie are met, the guide wheels are solid rubber tires, wheel shafts are of cantilever structures, the guide wheels are mounted on the positions of cross beams of the framework by means of fastening bolts, and gaps between the tires and the rail surfaces can be adjusted by adjusting pads.

The lower parts of the two side ends of the framework 8 are respectively provided with 1 group of stabilizing wheel sets 5, and the stabilizing wheels are solid tires, so that the functional requirement of overturn prevention in the running process of the bogie is met. The stabilizing wheel set 5 is provided with a spring pre-tightening device, and the pre-tightening of the tire to the beam surface can be adjusted.

The front end and the rear end of the framework 8 are respectively provided with 1 group of rescue wheel wheels, and the number of the rescue wheel wheels is 2, the rescue wheels can support the bogie and the vehicle to run under special conditions (the driving wheel group is invalid due to inflation tires), so that the use requirement under an emergency state is met, and the rescue wheel group adopts a metal wheel core and polyurethane surface layer structure.

The whole plate pressing type splicing adopted by the framework 8 has the characteristics of large strength and light weight, and except the installation of the body part of the bogie, the framework can be provided with spare part installation interfaces for reserving a suspension system and a traction system.

When the bogie and the driving wheel set mechanism are used as a non-power bogie, a driving motor, a speed reducer and a coupling are not installed.

Example 2: on the basis of the embodiment 1, a method for quickly disassembling a driving wheel set and a framework in a bogie of a monorail overhead tourist car and a driving wheel shaft set mechanism is characterized in that one end of a coupler is connected with an output shaft of a reduction gearbox, the other end of the driving wheel is connected with a driving wheel shaft 4, the coupler 2 is connected with the two shafts through splines, bosses are arranged at two ends of an upper shaft box body 3-1 in the framework 8 and positioned, the end face of an axle box mounting seat 8-1 on the framework 8 is positioned as a groove, the boss of the upper shaft box body 3-1 can be inserted into the groove of the framework axle box mounting seat 8-1, the driving wheel group 4 can be installed through a fastening bolt and a lower shaft box body 3-2, the bolt and the lower shaft box body 3-2 at two ends are detached during detachment, the coupler 2 is disconnected, the driving wheel group 4 falls down through a tool, the driving wheel group can be detached from the framework, and parts of the driving wheel group.

It is to be understood that: although the above embodiments have described the design idea of the present invention in more detail, these descriptions are only simple descriptions of the design idea of the present invention, and are not limitations of the design idea of the present invention, and any combination, addition, or modification without departing from the design idea of the present invention falls within the scope of the present invention.

Claims

1. The utility model provides a single track overhead tourist car bogie and drive wheel axle group mechanism which characterized by: the driving motor (3) is connected with the reduction gearbox (1) and is installed at the side end of the bogie, the output shaft of the reduction gearbox (1) is connected with the driving wheel set (4) through a coupler (2), the coupler (2) consists of a left coupler and a right coupler and is connected through a bolt, one end of the coupler (2) is connected with the output shaft of the reduction gearbox, and the other end of the coupler (2) is connected with the driving wheel set (4); two groups of guide wheel devices (6) are respectively arranged at the front end and the rear end of the framework (8), a group of stabilizing wheel sets (5) are respectively arranged at the lower parts of the two side ends of the framework (8), a group of rescue wheel wheels (7) are respectively arranged at the front end and the rear end of the framework (8), and a brake (9) is arranged on a brake shaft or a driving shaft of the speed reducer.

2. The monorail aerial tourist car bogie and drive axle set mechanism of claim 1, wherein: the whole framework (8) is formed by plate profiling, tailor welding and assembling, and except for installing the body part of the bogie, the framework (8) is provided with a part installation interface which is reserved for a suspension system and a traction system.

3. A monorail overhead sight-seeing car bogie and drive axle set mechanism as claimed in claim 1 or 2, wherein: the two ends of an upper shaft box body (3-1) in a framework (8) are provided with bosses for positioning, the end face of an axle box mounting seat (8-1) on the framework (8) is provided with a groove for positioning, the bosses of the upper shaft box body (3-1) can be inserted into the grooves of the framework axle box mounting seat (8-1), the driving wheel set (4) can be mounted by using fastening bolts and a lower shaft box body (3-2), the bolts and the lower box body are dismounted during dismounting, and the driving wheel set can be dismounted from the framework (8) by disconnecting a coupler.

4. The monorail aerial tourist car bogie and drive axle set mechanism of claim 1, wherein: the driving wheel set (4) consists of a front end cover I (4-1), a bearing (4-2), a locking device (4-3), a connecting flange (4-4), an axle (4-5), a rear end cover (4-6), a front end cover II (4-7) and a wheel assembly (4-8); the connecting flange (4-4) is connected with the axle (4-5) through a spline, the axle is positioned and locked by using a locking device (4-3), and the bearing (4-2) is pressed and assembled at two ends of the axle (4-5) by using a press-fitting machine; the bearing (4-2) is installed and clamped in the positioning grooves of the upper axle box (3-1) and the lower axle box (3-2); and a wheel assembly (4-8) is arranged in the front end cover I (4-1) or the front end cover II (4-7) through a bearing (4-2), and is bolted with the connecting flange by using fastening bolts.

5. The monorail aerial tourist car bogie and drive axle set mechanism of claim 4, wherein: the locking device (4-3) is in a combination form of a round nut and a check washer.

6. The monorail aerial tourist car bogie and drive axle set mechanism of claim 1, wherein: the stabilizing wheel set (5) is provided with a spring pre-tightening device, and the pre-tightening of the tire to the beam surface can be adjusted.

7. The monorail aerial tourist car bogie and drive axle set mechanism of claim 1, wherein: the rescue wheel (7) supports the bogie and the vehicle to run, and the rescue wheel group adopts a metal wheel core and polyurethane surface layer structure.

8. The monorail aerial tourist car bogie and drive axle set mechanism of claim 1, wherein: the running tire is a pneumatic tire.

9. A quick disassembling method for a driving wheel set and a framework in a bogie and a driving wheel shaft set mechanism of a monorail aerial tourist car is characterized by comprising the following steps: one end of a coupler is connected with an output shaft of the reduction gearbox, the other end of the coupler is connected with a driving wheel shaft (4), the coupler (2) is connected with the two shafts through splines, bosses are arranged at the two ends of an upper shaft box body (3-1) in a framework (8) and positioned, the end face of a shaft box mounting seat (8-1) on the framework (8) is positioned in a groove, the bosses of the upper shaft box body (3-1) can be inserted into the groove of the framework shaft box mounting seat (8-1), the driving wheel set (4) can be mounted by using fastening bolts and a lower shaft box body (3-2), the driving wheel set (4) can be dismounted by dismounting the bolts and dismounting the lower shaft box bodies (3-2) at the two ends, the coupler (2) is disconnected, the driving wheel set (4) can be dismounted from the framework by using a tool, parts of the driving wheel set can be, and the wheel assembly can also be directly disassembled after the flange bolts are disassembled (4-4) after the driving wheel set is disassembled.