CN-122013663-A - Rail transit guardrail plate updating operation platform and working method thereof

CN122013663ACN 122013663 ACN122013663 ACN 122013663ACN-122013663-A

Abstract

The invention discloses a rail transit guardrail plate updating operation platform and a working method thereof, wherein the rail transit guardrail plate updating operation platform comprises a bottom bracket, casters, upright posts, a cross beam and a movable wheel assembly, wherein two upright posts which are oppositely and longitudinally arranged are arranged on one lateral side of the top of the bottom bracket, the movable wheel assembly comprises a movable wheel assembly mounting frame, a movable wheel telescopic rod, a first electric push rod, a movable wheel frame, a motor, a synchronous pulley, a bearing, a movable wheel and guide wheels, the movable wheel assembly mounting frame is arranged on the top of the upright posts and is connected with the movable wheel telescopic rod, a base of the first electric push rod is fixed on an outer rod of the movable wheel telescopic rod, the telescopic rod is connected with an inner rod of the movable wheel telescopic rod, the movable wheel frame is rotationally connected with the inner rod of the movable wheel telescopic rod through a bearing, the motor drives the synchronous pulley to move so as to drive the movable wheel to rotate, and the two guide wheels are respectively clamped on two sides of a linear track or a bending track. The invention has the advantages that the safety and the function of the internal cable are not affected, and the normal operation of the train on the track is not interfered.

Inventors

DONG ZELONG
ZHANG LI
TU JUNFEI
WANG HONGXIN
JIANG WENBIN
DING LIHONG
CHENG BOYAN
TANG GUOSHENG
XU JINGEN
WANG SHUAISHUAI
DU GUANQUN

Assignees

上海城建市政工程（集团）有限公司

Dates

Publication Date: 20260512
Application Date: 20260210

Claims (10)

1. The rail transit guardrail plate updating operation platform is characterized by comprising a bottom bracket, casters, upright posts, a cross beam and a movable wheel assembly, wherein one caster is respectively arranged at four corners of the bottom bracket, two upright posts which are longitudinally arranged relative to each other are arranged on one lateral side of the top of the bottom bracket, the tops of the two upright posts are connected through the cross beam, the movable wheel assembly comprises a movable wheel assembly mounting frame, a movable wheel telescopic rod, a first electric push rod, a movable wheel frame, a motor, a synchronous pulley, a bearing, a movable wheel and a guide wheel, the movable wheel assembly mounting frame is arranged at the top of the upright posts and is connected with the movable wheel telescopic rod, the movable wheel telescopic rod is formed by an outer rod and an inner rod arranged in the outer rod, the telescopic rod is connected with the inner rod of the movable wheel telescopic rod, the movable wheel frame is rotationally connected with the inner rod of the movable wheel telescopic rod through the bearing, the motor, the synchronous pulley and the movable wheel frame are arranged on the two guide wheels or the two guide wheels are rotatably arranged on two sides of the rail transit rails respectively, and the rail transit guide wheels are driven by the two guide wheels or the two guide wheels.
2. The rail transit guardrail plate updating operation platform of claim 1, further comprising a supporting wheel assembly, wherein the supporting wheel assembly is arranged at the bottom of the upright post, the supporting wheel assembly comprises a supporting wheel electric push rod and a supporting wheel, a telescopic rod of the supporting wheel electric push rod is connected with the supporting wheel, and the supporting wheel electric push rod drives the supporting wheel to prop against the side face of the bridge.
3. The rail transit guardrail plate updating operation platform as claimed in claim 1, wherein the operation platform further comprises a fastening assembly, the fastening assembly is mounted at the bottom of the upright post and comprises a fastening electric push rod and a fastening plate, a telescopic rod of the fastening electric push rod is rotatably connected with the fastening plate, the telescopic rod of the fastening electric push rod stretches to enable the fastening plate to be located on the inner side of the concrete upright post, the fastening plate rotates, and the telescopic rod of the fastening electric push rod contracts to enable the fastening plate to be clamped on the inner side of the concrete upright post.
4. The rail transit guardrail plate updating operation platform of claim 1, further comprising a hoisting assembly, wherein the hoisting assembly comprises an electric control adjusting bracket, a crane rotating bracket and a crane, the electric control adjusting bracket is installed at the top of the upright, the crane rotating bracket is rotatably connected to the top of the upright, the crane is connected with the crane rotating bracket, a second electric push rod is installed on the electric control adjusting bracket, a base of the second electric push rod is hinged with the electric control adjusting bracket, a telescopic rod is hinged with the crane rotating bracket, and the second electric push rod drives the crane rotating bracket to rotate so as to drive the crane to rotate.
5. The rail transit guardrail plate updating operation platform of claim 1, further comprising safety wheel assemblies, wherein the safety wheel assemblies comprise mounting frames, rotating shafts, wheel frames, safety wheel assembly moving wheels and safety wheel assembly guiding wheels, the mounting frames are mounted at the tops of the upright posts, the wheel frames are rotatably connected with the mounting frames through the rotating shafts, the safety wheel assembly moving wheels and the safety wheel assembly guiding wheels are mounted on the wheel frames, the safety wheel assembly moving wheels walk on the linear track or the over-curved track, the safety wheel assembly guiding wheels are provided with two safety wheel assembly guiding wheels, the two safety wheel assembly guiding wheels are respectively arranged on two sides of the safety wheel assembly moving wheels, and the two safety wheel assembly guiding wheels are respectively clamped on two sides of the linear track or the over-curved track.
6. The rail transit guardrail plate updating work platform of claim 1, wherein the bottom bracket is provided with a back guardrail on one lateral side of the bottom bracket, wherein the lateral side of the bottom bracket is not provided with the upright post, two longitudinal sides of the bottom bracket are respectively provided with a side guardrail, one side of the side guardrail is hinged with the back guardrail, the other side of the side guardrail is fixed with the upright post through a bolt, and brackets for installing sound insulation plates are arranged on the lower parts of the side guardrail and the back guardrail.
7. The rail transit guardrail plate updating operation platform of claim 1, wherein the bottom bracket is provided with a turning plate on one lateral side provided with the upright post, one side of the turning plate is hinged to the bottom bracket, two longitudinal sides of the bottom bracket are respectively provided with a third electric push rod, the base of the third electric push rod is hinged with the bottom bracket, and the telescopic rod is hinged with the turning plate.
8. The rail transit guardrail plate updating work platform of claim 1, wherein the synchronous pulley comprises a driving wheel, a driven wheel and a transmission belt, the driving wheel is coaxially connected with an output shaft of the motor, the driven wheel is coaxially connected with the movable wheel, and the transmission belt is sleeved on the driving wheel and the driven wheel.
9. The working method of the rail transit guardrail plate updating work platform according to any one of claims 1-8, characterized by comprising the following steps: The method comprises the following steps of S1, respectively installing a linear rail and a protection plate on the top and the inner side of a concrete column on the top surface of a bridge, suspending the operation platform on the outer side of a side wall of a rail transit facility by utilizing a crane, installing moving wheels of a moving wheel assembly on the linear rail, and respectively clamping two guide wheels of the moving wheel assembly on two sides of the linear rail; s2, starting a motor of the movable wheel assembly, moving the operation platform to the position of a guardrail plate to be cut, and stretching out a fastening assembly to clamp the concrete upright post to perform cutting and dismantling operation of the guardrail plate, wherein a telescopic rod of a fastening electric push rod of the fastening assembly stretches to enable a fastening plate of the fastening assembly to be positioned at the inner side of the concrete upright post; s3, after the guardrail plates are cut and removed, rotating a crane rotating bracket of a hoisting assembly to enable a crane of the hoisting assembly to move to the position above the removed guardrail plates, and hoisting the removed guardrail plates; s4, retracting the fastening assembly, moving the operation platform to the position of the next guardrail plate to be cut, and repeating the operation until all guardrail plates to be cut are removed; S5, moving the operation platform to the position of the guardrail plate to be installed, extending the fastening component to clamp the concrete upright post, opening the turning plate, using the crane to transport the guardrail plate to be installed from the ground to the platform for manual installation, stirring grouting materials on the ground, transporting a container filled with grouting materials to the operation platform through the crane for grouting operation, closing the turning plate after the transportation is completed, and repeating the operation until all the guardrail plates to be installed are installed.
10. The method for updating the operation platform of the rail transit guardrail plate according to claim 9, wherein when the operation platform needs to be subjected to bending operation, a bending rail is arranged on the linear rail, the moving wheels of the moving wheel assembly are arranged on the bending rail, two guide wheels of the moving wheel assembly are respectively clamped on two sides of the bending rail, and the moving wheels always move along the bending rail under the action of the guide wheels.

Description

Rail transit guardrail plate updating operation platform and working method thereof Technical Field The invention relates to the technical field of road and bridge construction, in particular to a rail transit guardrail plate updating operation platform and a working method thereof. Background The side or the overhead bridge section of the rail transit operation line is commonly provided with a concrete guardrail plate which is used as an important safety protection structure and is exposed to natural environment for a long time, so that diseases such as concrete cracking, peeling, steel bar corrosion and the like are easy to occur, and the concrete guardrail plate needs to be replaced and maintained regularly so as to ensure operation safety. Such construction belongs to typical "temporary space and temporary edge" high-risk operation, and must be completed within a short line operation intermittent period (such as night sunroof points), and extremely high requirements are placed on operation efficiency, safety and control of the influence of existing facilities. At present, aiming at the update construction of the rail transit outside guardrail plate, the method mainly depends on the following methods, but all have obvious limitations: 1. Traditional overhead working truck or basket mode: The method is characterized in that the operation platform is mounted on a ground mobile vehicle, and the limitations of the operation platform are that (a) the operation platform has high dependence on the ground, a non-hardened road surface, a green belt or a pipeline exists under a track, road conditions are complex, equipment is difficult to reach or stably support, the operation coverage is severely limited, (b) the operation risk is disturbed, the large equipment arm span possibly invades the running limit of a train, the safety risk is high, the operation is usually stopped in a full line or in a segmented mode, the cost is high, and (c) the efficiency is low, the equipment is in place and takes time to adjust, the materials are required to be additionally lifted, and the coordination is difficult. 2. Track type platform car mode: The method uses a track line as a running basis and has the core problems that (a) trafficability is poor, subway tunnels or viaduct side walls are required to be partially protruded to form 'bosses' due to facilities such as illumination, signals and the like, standard track platform vehicles cannot directly span due to structural rigidity and size limitation, and the standard track platform vehicles have to be disassembled, transported and recombined at each boss, consume a great deal of manpower and time and become key bottlenecks for limiting work efficiency, and (b) the method has single functions that a plurality of platform vehicles only provide moving and standing functions, material transportation depends on other equipment and is not smooth in process connection. 3. Simple suspension type operation platform: In order to avoid the limitation of ground conditions, a simple platform temporarily suspended on a side wall is sometimes adopted, but the defects are obvious that (a) the stability and the safety are insufficient, the system is manually bound and fixed, a reliable and quick automatic locking mechanism is lacked, the system is easy to shake under dynamic loads such as cutting, hoisting and the like, the risk of overturning exists, (b) the system is difficult to move, the system is manually pushed after the displacement is completely released from the fixation or by other machines, the positioning precision is poor, the labor intensity is high, and (c) the automation and the perception capability are poor, the platform state (such as whether the fixation is firm or not and the position information) is completely judged by the experience of personnel, and the remote monitoring and intelligent early warning means are lacked. In addition, the existing construction method generally neglects two important problems: (a) Noise pollution, namely high-intensity noise generated by guardrail plate cutting and crushing operations is particularly prominent in urban environments at night, resident complaints are easily caused, and the prior equipment is not generally integrated with effective sound insulation and noise reduction measures. (B) The cable protection comprises the steps that various operation cables are densely distributed on the inner side of a guardrail plate, damage to the operation cables is absolutely avoided in construction, and the design of systematic physical isolation between an operation side (outer side) and a protection side (inner side) is lacked in the existing method. In view of the foregoing, there is a need for a rail transit guardrail plate update work platform and a working method thereof that can solve the foregoing problems. Disclosure of Invention The invention aims to provide a rail transit guardrail plate updating operation platform and a working met