CN115010062A

CN115010062A - Dual-purpose self-walking lifting working platform for track and ground

Info

Publication number: CN115010062A
Application number: CN202210689070.7A
Authority: CN
Inventors: 陈硕; 陈建平
Original assignee: Hangzhou Sivge Machinery Co ltd
Current assignee: Hangzhou Sivge Machinery Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-09-06

Abstract

The invention discloses a track and ground dual-purpose self-walking lifting working platform, which belongs to the lifting working platform technology, wherein a lifting track wheel system configured on the existing lifting working platform has a complex structure, large volume and high cost; the ground walking system comprises a ground walking wheel driven by ground walking power, the track walking system comprises a track walking wheel driven by track walking power, and the lower edge of the ground walking wheel is positioned on the lower side of a plane determined by the lower edge of the track walking wheel. When the lifting platform enters the track to work, the ground walking system is firstly used for walking on the ground, when the lifting platform passes through a turnout, the lifting platform is hoisted to the track by the hoisting equipment, and then the track walking system is used for walking on the track. The dual-purpose self-walking of the track and the ground is realized. The invention fully considers the conditions of actual use requirements, operation environment and walking working conditions, simplifies the structure, reduces the product volume and improves the use safety and the cost performance.

Description

Dual-purpose self-walking lifting working platform for track and ground

Technical Field

The invention belongs to the technology of lifting working platforms, and particularly relates to a rail and ground dual-purpose self-walking lifting working platform which can walk on the ground and also can walk on a rail.

Background

The self-moving lifting working platform is usually provided with walking wheels, and the wheels can only walk on the ground no matter the self-moving lifting working platform walks by adopting manpower, electric drive or hydraulic drive. However, the existing railways, especially high-speed railways, need to maintain and repair lines and the like erected above the railways along the lines, and the traditional wheels cannot be suitable for running on the rails, so that the high-altitude operation equipment of the lifting working platform is influenced to serve railway construction. If the wheels are designed to be special for the tracks, the wheels cannot stably and effectively travel when entering a common road, and the traditional traveling system is difficult to be simultaneously applied under two working conditions of the common road and the railway tracks. The requirement that the device can be used under two working conditions simultaneously exists objectively.

To address this particular need, commercially available devices are: the rail wheel system is made to be liftable, when the vehicle walks on the ground, the rail wheels are lifted, and the ground walking wheels land. When the vehicle runs on the track, the track wheels are supported downwards to lift the vehicle body and the ground running wheel system, so that the ground running wheel system is emptied, and the vehicle runs on the track. The technical scheme has the disadvantages that at least one of the two driving wheel trains is required to be provided with a lifting mechanism, so that the conversion of the working mode is realized; the lifting mechanism needs to keep the lifting height synchronization of the front, rear, left and right wheels and needs height locking in working state. Therefore, the equipment has the advantages of complex structure, large volume and high cost, and is not beneficial to large-scale popularization and application.

Disclosure of Invention

The invention aims to solve the technical problems and provide a technical task to overcome the defects of complex structure, large volume, high cost and the like of a lifting rail wheel system configured on the conventional lifting working platform, and provides a rail and ground dual-purpose self-walking lifting working platform with simple structure, small volume and low cost, so that the safety, the practicability and the high cost performance of the lifting working platform are realized.

In order to achieve the purpose, the dual-purpose self-walking lifting working platform for the rail and the ground comprises an underframe, a lifting mechanism arranged on the underframe and a working bucket driven by the lifting mechanism to lift, and is characterized in that: the underframe is provided with a ground walking system and a track walking system; the ground walking system comprises a ground walking wheel driven by ground walking power, the track walking system comprises a track walking wheel driven by track walking power, and the lower edge of the ground walking wheel is located on the lower side of the plane determined by the lower edge of the track walking wheel.

When the lifting working platform enters the rail to work, the ground walking system is firstly used for walking on the ground, when the lifting working platform passes through a turnout, the lifting working platform is hoisted to the rail by hoisting equipment, and then the rail walking system is used for walking on the rail. Thereby realizing the dual-purpose self-walking of the track and the ground. And when the vehicle runs on the ground, the track travelling wheels do not touch the ground, so that the vehicle is not interfered when running on the ground, and a certain departure angle of the vehicle is ensured.

In order to avoid the obstruction of a ground walking system when the lifting working platform walks on the track, the height difference between the planes determined by the lower edges of the ground walking wheels and the lower edges of the track walking wheels does not exceed the clearance height above the sleepers between the tracks.

In specific implementation, the ground travelling wheels can be positioned on the inner sides of the two coaxial track travelling wheels in the width direction; or the ground travelling wheels are positioned on the outer sides of the two coaxial track travelling wheels in the width direction; or the ground travelling wheels on one side are positioned on the outer sides of the two coaxial track travelling wheels in the width direction, and the ground travelling wheels on the other side are positioned on the inner sides of the track travelling wheels in the width direction.

In order to simplify the structure and facilitate assembly, the track traveling system comprises a front wheel frame and a rear wheel frame, the track traveling wheels comprise track driving wheels assembled on the front wheel frame and track following wheels assembled on the rear wheel frame, and the front wheel frame and the rear wheel frame are vertically inserted into the underframe through vertical columns.

In particular, the base frame has a vertical insertion hole, the side wall of which has a first pin hole, and the vertical column has a second pin hole, the first pin hole corresponding to the second pin hole and into which a transverse pin is inserted.

In order to increase the trafficability of the lifting working platform to walk along the rail, the first pin hole or/and the second pin hole comprise at least two pin holes and are vertically distributed. When the lifting working platform passes through the road junction or a barrier higher than a sleeper is arranged between the rails, the transverse pin can be pulled down to lift the underframe, and then the transverse pin is inserted into the corresponding first pin hole and the second pin hole, so that the height of the ground travelling wheel of the rail travelling wheel on the rail is increased, and the barrier is avoided.

In order to simplify the structure of the underframe, each frame in the width direction of the underframe is composed of two layers of side plates, and a crosspiece is connected between the two frames. The space between the side plates is used for arranging and assembling other structures.

When the railway track is operated on a high-speed railway and other tracks, the two tracks need to be isolated from each other by electric signals, and in order to prevent the interference to communication and signals, the outer edges of the track traveling wheels are insulators.

In order to increase the anti-overturning capacity of the lifting operation platform, an electric rail clamping device is arranged on the underframe. When the lifting working platform is positioned on the track, the track is clamped by utilizing the rollers of the electric rail clamping device, and when the lifting working platform travels along the track, the rollers of the electric rail clamping device also travel along the track.

In order to bear larger load capacity and obtain better deflection resistance and meet the reasonable arrangement requirements of a ground travelling gear train and a track travelling gear train, the lifting mechanism is a mast type lifting mechanism; and as a power configuration for lifting the working platform, a fuel generator set is configured on the rack.

The invention arranges a ground walking system and a track walking system on the underframe; the ground walking system comprises a ground walking wheel driven by ground walking power, the track walking system comprises a track walking wheel driven by track walking power, and the lower edge of the ground walking wheel is positioned on the lower side of a plane determined by the lower edge of the track walking wheel. When the lifting platform enters the track to work, the ground walking system is firstly used for walking on the ground, when the lifting platform passes through a turnout, the lifting platform is hoisted to the track by the hoisting equipment, and then the track walking system is used for walking on the track. Thereby realizing dual-purpose self-walking on the track and the ground.

The invention fully considers the conditions of actual use requirements, operation environment and walking working conditions, simplifies the structure, reduces the product volume and improves the use safety and the cost performance.

Drawings

FIG. 1 is an isometric view of the dual-purpose self-propelled elevating platform for track and ground in accordance with the present invention;

FIG. 2 is a schematic view of the aerial work platform of FIG. 1 from another perspective;

FIG. 3 is a schematic orthographic view of the lift platform of FIG. 1 along a view parallel to the rails;

FIG. 4 is a schematic view of the ground engaging system and the track engaging system of the present invention in position relative to a track;

FIG. 5 is a schematic view of the ground running system and the track running system of the present invention disposed on the undercarriage;

FIG. 6 is a schematic view showing the assembly relationship between the track running system and the underframe according to the present invention;

FIG. 7 is a schematic view of the elevated undercarriage of the track wheel of the present invention positioned on a track;

FIG. 8 is a schematic view from another perspective of the state of FIG. 7;

FIG. 9 is a schematic view of the ground road wheel, track road wheel projection on the horizontal plane of the present invention;

the reference numbers in the figures illustrate:

100 chassis: 110 vertical insertion holes, 120 first pin holes, 130 side frames, 140 side plates and 150 crosspieces;

200 lifting mechanism;

300 working bucket;

410 ground walking power, 420 lower edge of ground walking wheel, 430 ground driving wheel and 440 ground steering wheel

510 track running power, 520 front wheel frame, 530 rear wheel frame, 540 track driving wheel, 550 track following wheel, 560 vertical column, 570 second pin hole, 580 track running wheel lower edge determined plane,

h height difference;

600 electric rail clamping device;

700 fuel generator set;

800 tracks.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this invention are intended to cover a non-exclusive inclusion, such that a method or article of manufacture that comprises a list of features does not have to be limited to those features expressly listed, but may include other features not expressly listed that may be included in the method or article of manufacture.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Wherein, the directions of the upper part and the lower part, the front part and the rear part, and the left part and the right part are opposite.

In the description of the present invention, it should be understood that the technical features defined by the terms "first", "second", etc. have sequential concepts, only in order to clearly describe the defined technical features, so that the defined technical features can be clearly distinguished from other technical features, and do not represent such naming in actual practice, and thus, should not be construed as limiting the present invention.

The present invention will be described in detail with reference to the following embodiments and accompanying drawings.

As shown in fig. 1-3, the dual-purpose self-walking lifting platform for rail and ground comprises an underframe 100, a lifting mechanism 200, a working bucket 300, a ground walking system, a rail walking system and a fuel generator set 700.

Each of the frames 130 in the width direction (i.e., the left-right direction) of the bottom chassis 100 is formed of two layers of side plates 140, and a rail 150 is connected between the two frames. The bottom chassis 100 has vertical insertion holes 110 at four corners thereof, and a first pin hole 120 is formed at a side wall of each vertical insertion hole.

Two electric rail clamps 600 are disposed on the outer side of each frame of the chassis 100. When the lifting working platform is in a lifting state and moves at a low speed, the roller of the electric rail clamping device is in contact with the rail, the outline of the middle part of the roller is matched with the outline of the feather edge of the rail, so that the feather edge of the rail can be hooked to resist overturning moment from the lifting working platform caused by wind power, manual operating force and other factors, and the stability of the lifting working platform in high-altitude operation is ensured. When the lifting working platform needs to run on the rail quickly in a condensed state, the stability is ensured, and the electric rail clamping device can be separated from the rail so as to ensure the safety and durability of the electric rail clamping device.

The lifting mechanism 200 is a wide mast-type lifting mechanism; so as to bear larger load capacity and obtain better deflection resistance, and in addition, the proper width of the wheel meets the reasonable arrangement requirements of ground running wheels and track running wheels.

The working bucket 300 adopts a structure with two extendable transverse sides so as to simultaneously meet the requirements of width of a working surface above a track, stability of the whole machine and storage and transportation.

The ground travel system includes ground travel wheels driven by ground travel power 410. The ground road wheels include two ground drive wheels 430 and two ground steering wheels 440. Two ground steering wheels 440 are symmetrically mounted to the front of the lower side of the underframe and are provided with a steering mechanism. The two ground driving wheels 430 are symmetrically arranged at the left and right sides and coaxially arranged at the rear part of the lower side of the underframe and are driven by ground walking power 410, the ground walking power is a motor and a speed reducer which are fixedly arranged on the underframe, and the motor is preferably adjustable in speed. Therefore, under the driving of ground walking power, the two ground driving wheels rub against the bottom surface to provide walking force, and the two ground steering wheels follow and steer through the steering mechanism.

The rail traveling system includes a front wheel frame 520, a rear wheel frame 530, and rail traveling wheels driven by rail traveling power. The track following wheels include two track drive wheels 540 and two track following wheels 550. Two rail driving wheels 540 are mounted at both ends of the front wheel frame, and two rail following wheels 550 are mounted at both ends of the rear wheel frame. The front wheel frame 520 and the rear wheel frame 530 are vertically inserted into the vertical insertion holes 110 at the four corners of the bottom frame 100 through the vertical columns 560. The two track driving wheels are positioned at the front part of the lower side of the underframe in bilateral symmetry and are driven by track walking power 510 fixed on the front wheel frame, the track walking power is also a motor and a speed reducer, and the motor is preferably adjustable in speed. The two rail following wheels 550 are positioned at the rear of the lower side of the underframe in bilateral symmetry. Therefore, under the driving of the rail traveling power, the two rail driving wheels rub with the rail to provide traveling power, and the two rails follow the traveling wheels.

As shown in fig. 3 and 9, when the lifting platform is placed on a horizontal plane, in order to make the center of gravity of the device as much as possible on the bilateral symmetry center of the lifting platform, the ground traveling wheels are located on the inner sides of the track traveling wheels in the width direction, and at this time, the track pitches of the two ground driving wheels and the two ground steering wheels are smaller than the track pitches of the two track driving wheels and the track following wheels, in other words, the track pitches of the two ground driving wheels and the track following wheels are smaller than the distance between the two tracks. During specific implementation, the ground travelling wheels can also be positioned on the outer sides of the two coaxial track travelling wheels in the width direction, and at the moment, the wheel track of the two ground driving wheels and the wheel track of the two ground steering wheels are larger than the distance between the two tracks. The arrangement modes of the two ground travelling wheels and the track travelling wheels are particularly suitable for the situation that the two tracks are in the horizontal plane. In addition, in some curved roads or positions with inclined ground, the ground travelling wheels on one side can be positioned outside the two coaxial track travelling wheels in the width direction, and the ground travelling wheels on the other side are positioned inside the track travelling wheels in the width direction, so that the gravity center of the equipment is positioned at the bilateral symmetry center of the lifting working platform as much as possible.

Also, the vertical column 560 has two vertically distributed second pin holes 570, and the first pin holes 120 correspond to the second pin holes 570 and insert the lateral pins therein, thereby restraining the front and rear wheel frames to the under frame. Therefore, the height between the front wheel frame, the rear wheel frame and the underframe can be adjusted by corresponding different second pin holes on the vertical column and the first pin hole on the underframe and inserting the transverse pin.

After the ground running wheels and the track running wheels are assembled on the lower side of the underframe, the lower edges 420 of the ground running wheels are positioned on the lower side 580 of the plane determined by the lower edges of the track running wheels. As shown in fig. 3, the lower edges of the ground road wheels are all lower than the lower edges of the track road wheels. And the height difference H between the planes determined by the lower edges of the ground travelling wheels and the lower edges of the track travelling wheels does not exceed the clearance height above the sleepers between the tracks. Therefore, the ground traveling system is prevented from being blocked when the lifting working platform travels on the rail.

In order to prevent the interference to communication and signals, the outer edge of the track traveling wheel is an insulator, namely the part contacting the track is an insulator such as engineering plastics.

When the lifting working platform enters the rail to work, the ground walking system is firstly used for walking on the ground, the lifting working platform can be hoisted to the rail by using hoisting equipment when crossing a turnout, the rail 800 is clamped by the electric rail clamping device 600, and then the rail walking system walks on the rail. Thereby realizing the dual-purpose self-walking of the track and the ground.

The turnout possibly passes through during the work after the upper rail of the lifting working platform, the underframe can be jacked up by utilizing equipment such as a jack and the like at the moment, the front wheel frame and the rear wheel frame fall, the second pin hole at the higher position on the vertical column corresponds to the first pin hole on the underframe and is inserted with the transverse pin, therefore, the height of the ground walking wheel is increased, and the lower edge of the ground walking wheel is higher than the upper plane of the rail and can pass through.

The lifting operation of the whole machine, the slow movement in the lifting state, the fast movement in the condensation state and the action of the electric rail clamping device are all intelligently controlled by an electric control system, so that the safety of the operation of the whole machine is ensured.

Claims

1. Dual-purpose self-walking lifting work platform in track ground, include chassis (100), locate elevating system (200) on the chassis and by elevating system take the work fill (300) of lift, characterized by: the underframe is provided with a ground walking system and a track walking system; the ground walking system comprises ground walking wheels driven by ground walking power (410), the track walking system comprises track walking wheels driven by track walking power (510), and the lower edges (420) of the ground walking wheels are positioned on the lower sides of planes (580) determined by the lower edges of the track walking wheels.

2. The dual-purpose self-walking lifting platform for track and ground as claimed in claim 1, which is characterized in that: the height difference (H) between the planes determined by the lower edges of the ground travelling wheels and the lower edges of the track travelling wheels does not exceed the clearance height above the sleepers between the tracks.

3. The dual-purpose self-walking lifting platform for track and ground as claimed in claim 1, which is characterized in that: the ground travelling wheels are positioned on the inner sides of the track travelling wheels in the width direction; or the ground travelling wheels are positioned on the outer sides of the two coaxial track travelling wheels in the width direction; or the ground travelling wheels on one side are positioned on the outer sides of the two coaxial track travelling wheels in the width direction, and the ground travelling wheels on the other side are positioned on the inner sides of the track travelling wheels in the width direction.

4. The dual-purpose self-walking lifting platform for track and ground as claimed in claim 1, which is characterized in that: the track traveling system comprises a front wheel frame (520) and a rear wheel frame (530), the track traveling wheel comprises a track driving wheel (540) assembled on the front wheel frame and a track following wheel (550) assembled on the rear wheel frame, and the front wheel frame and the rear wheel frame are vertically inserted into the underframe through vertical columns (560).

5. The dual-purpose self-walking lifting platform for track and ground as claimed in claim 4, wherein: the chassis has a vertical insertion hole (110) having a first pin hole (120) at a sidewall thereof, and the vertical post has a second pin hole (570) corresponding to the first pin hole and into which a lateral pin is inserted.

6. The dual-purpose self-walking lifting platform for track and ground as claimed in claim 5, wherein: the first pin hole or/and the second pin hole comprises at least two pin holes and is distributed along the vertical direction.

7. The dual-purpose self-walking lifting platform for track and ground as claimed in any one of claims 1 and 4-6, which is characterized in that: each frame (130) in the width direction of the bottom frame is composed of two layers of side plates (140), and a crosspiece (150) is connected between the two frames.

8. The dual-purpose self-walking lifting platform for track and ground as claimed in claim 1, which is characterized in that: the outer edge of the track traveling wheel is an insulator.

9. The dual-purpose self-walking lifting platform for track and ground as claimed in claim 1, which is characterized in that: an electric rail clamping device (600) is arranged on the underframe.

10. The dual-purpose self-walking lifting platform for track and ground as claimed in claim 1, which is characterized in that: the lifting mechanism is a mast type lifting mechanism; and a fuel generator set (700) is arranged on the frame.