Suspension type mobile platform for installing beam bottom maintenance track

Abstract

The utility model discloses a suspension type mobile platform for installing a beam bottom overhaul track, and solves the problem that the existing mobile platform is high in safety risk. Comprising a maintenance track and an electromechanical platform, the position of the electromechanical platform is adjusted along the track, the maintenance track is fixed to the beam bottom and provides guidance for the electromechanical platform, and the electromechanical platform comprises a truss structure, a walking structure, a locking structure and a stopping structure; wherein the maintenance track walks on the installed maintenance track through the walking structure, the locking structure is used for position locking, and the stop structure is arranged to prevent the moving platform from sliding out of the track; by using the device, the cantilever of the maintenance track at the bottom of the beam is installed, the investment of hoisting equipment and temporary supports is reduced, the safety risk is reduced, and the problem of installation of the maintenance track under special working conditions such as a deep gorge, a high clearance bridge or a tidal water area is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of bridge construction, and specifically relates to a trolley platform for installing a bridge bottom maintenance track. BACKGROUND

[0002] As the core equipment of the modern bridge operation and maintenance system, the track installation quality of the bridge maintenance vehicle directly affects the operation stability of the maintenance vehicle and the bridge maintenance efficiency. In order not to affect the construction of the main body of the bridge, the beam bottom maintenance vehicle is generally installed after the construction of the main beam is completed. The traditional beam bottom maintenance track installation technology mainly depends on large lifting equipment or the construction operation platform, for example, the hanging platform type beam bottom maintenance device recorded in the patent document CN202320920371.6, which comprises two beam transport vehicles and a maintenance platform. The two beam transport vehicles are respectively located on both sides of the top surface of the bridge, and a cantilever support and a winch are fixedly arranged on each beam transport vehicle. The cantilever support extends to the outside of the bridge in the transverse direction of the bridge at the front end of the cantilever, and a steering wheel is arranged at the front end of the cantilever. The maintenance platform is located below the bridge, and the two ends of the maintenance platform extend to the outside of the two sides of the bridge, respectively. The traction ropes of the winches on the two beam transport vehicles pass through the steering wheels at the front ends of the cantilever supports and are connected with the two ends of the maintenance platform, respectively. The beam transport vehicle walks on the bridge, suspends and hangs the maintenance platform under the bridge, and is not limited by the height of the bridge and the passing conditions under the bridge. The length of the maintenance platform is set according to the width of the beam, and the beam bottom maintenance can be applied to the beam bottom maintenance of the bridge with large width. The equipment with this structure has significant limitations and high safety risks under special working conditions such as deep valley crossing, high clearance bridge or tidal water area. SUMMARY

[0003] The utility model aims at providing a mobile platform which can be suspended on the installed maintenance track and can sequentially cantilever install the subsequent maintenance track, and solves the problem of high safety risk of the existing mobile platform.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A suspension type mobile platform for installing a beam bottom maintenance track, comprising a maintenance track and an electromechanical platform for position adjustment along the track, the maintenance track is fixed on the beam bottom and provides guidance for the electromechanical platform, characterized in that: the electromechanical platform comprises a truss structure, a walking structure, a locking structure and a stop structure;

[0006] The truss structure comprises a truss beam and a balance support, and the high point of the balance support is in rolling contact with the beam bottom;

[0007] The walking structure is fixed on the truss structure and mechanically cooperates with the maintenance track in a suspended manner. The driving wheels in the walking structure roll along the track and drive the truss structure to move forward and backward;

[0008] The locking structure is fixed on the truss structure and has two states of loosening and locking with the maintenance track, and the locking state fixes the truss structure and the maintenance track.

[0009] A stop structure is mechanically fixed at the end of the maintenance track.

[0010] Further, the walking structure includes a motor, a gearbox, a driving gear, a driving wheel, a structural steel plate, a pin shaft I and a flange I, the low point position of the structural steel plate is fixedly connected with the truss structure through the flange I and the pin shaft I, the space between the structural steel plates is provided with the driving wheel, the driving gear and the driving gear shaft, the motor and the gearbox are installed on the outside of the structural steel plate, the input end of the gearbox is mechanically connected with the motor, the output end of the gearbox is mechanically connected with the driving gear shaft, the left and right two driving gears are installed on the driving gear shaft, and the driving gears are driven and connected through gear transmission.

[0011] Further, the locking structure includes a hand wheel, a clamping steel plate, a pin shaft II, a flange II and a screw rod, the pin shaft II is fixedly connected with the flange II, the flange II is fixedly connected with the truss structure, the lower end of the clamping steel plate is provided with a light hole and is slidably matched with the pin shaft II, the screw rod is arranged between the two clamping steel plates, and the screw rod and the clamping steel plate are connected through forward and reverse threads to form a spacing adjustable mechanical connection.

[0012] Further, the outer end of the screw rod is connected with the hand wheel.

[0013] Further, the top inner side of the clamping steel plate is provided with an antiskid pad.

[0014] Further, the stop structure includes a U-shaped steel plate, a baffle and a split pin, the baffle is welded on both sides of the U-shaped steel plate, the upper end of the U-shaped steel plate is provided with a pin hole and is connected with the split pin, and the U-shaped steel plate is wrapped on the maintenance track from bottom to top.

[0015] Further, the truss beam is a cuboid frame structure formed by welding longitudinal, transverse, vertical and diagonal square steel pipes, and is provided with a bottom plate.

[0016] Further, the balance support includes a support frame, an end seat, a roller and a pin shaft III, the support frame is installed on the truss structure, the end seat is fixed at the high point position of the support frame, and the roller is installed on the end seat through the pin shaft III.

[0017] Further, the roller is a conical roller, and the angle of the conical roller is consistent with the inclination angle of the beam bottom.

[0018] The utility model discloses a technical effect for: the utility model passes through the suspension in the movable truss structure platform of having installed the maintenance track, can bear the maintenance track of installation, support and construction personnel, transports from the beam bottom to the installation position, and reciprocating, installs maintenance track in turn, convenient operation reduces the security risk, can effectively solve the maintenance track installation problem under the special working condition such as the bridge of deep valley, high clearance or tidal water area. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a kind of installation beam bottom maintenance track's suspension movable platform's structural schematic diagram.

[0020] Figure 2 It is the whole section schematic diagram of running structure.

[0021] Figure 3 It is the whole section schematic diagram of locking structure.

[0022] Figure 4 It is the truss architecture section schematic diagram.

[0023] Figure 5 It is Figure 4 It is the balance support schematic diagram.

[0024] Figure 6 It is the front view schematic diagram of running structure.

[0025] Figure 7 It is the left side schematic diagram of running structure.

[0026] Figure 8 It is the front view schematic diagram of locking structure.

[0027] Figure 9 It is the left side schematic diagram of locking structure.

[0028] Figure 10 It is the front view schematic diagram of stop structure.

[0029] Figure 11 It is the left side schematic diagram of stop structure.

[0030] Marked as in the drawing:

[0031] 00, beam bottom;

[0032] 000, maintenance track; 001, support;

[0033] 100, truss structure; 101, truss beam; 102, balance support; 1021, end seat; 1022, pin shaft III; 1023, roller;

[0034] 200, walking structure; 201, motor; 202, gearbox; 203, driving gear; 204, driving wheel; 205, structural steel plate; 206, fixing bolt; 207, pin shaft I; 208, flange I;

[0035] 300, locking structure; 301, hand wheel; 302, clamping steel plate; 303, pin shaft II; 304, flange II; 305, screw rod; 306, non-slip pad;

[0036] 400, stop structure; 401, U-shaped steel plate; 402, baffle; 403, split pin;

[0037] 500, to-be-mounted support and maintenance rail. DETAILED DESCRIPTION

[0038] Please refer to Figures 1-11 A suspension type mobile platform for installing a maintenance rail on the bottom of a beam, comprising a maintenance rail 000 and an electromechanical platform for position adjustment along the rail, wherein the maintenance rail 000 is fixed on the beam bottom 00 position of the main beam through a support 001 and an anchor nail, and the rail provides a guide rail for the electromechanical platform.

[0039] The above-mentioned electromechanical platform comprises a truss structure 100, a walking structure 200, a locking structure 300 and a stop structure 400, which will be described in detail below in conjunction with the drawings.

[0040] The truss structure 100 in the embodiment is composed of square steel pipes welded together, and comprises a truss beam 101 and a balance support 102, wherein the truss beam 101 is formed by welding longitudinal, transverse, vertical and diagonal square steel pipes, and has a cuboid frame structure with a long length. The truss beam is also a standing platform and a device platform of the mechanism, and preferably, a bottom plate is arranged on the standing platform of the truss beam, i.e., the bottom steel plate is welded.

[0041] The above-mentioned four-around rail of the truss structure is a safety protection measure, so that personnel and equipment are concentrated on the middle platform, and personnel walk in the middle.

[0042] The truss structure has a long length, and a walking structure is arranged between the truss structure and the rail. The so-called walking structure is fixed on the truss structure and drives the whole platform to move forward and backward along the rail through the rolling of the driving wheel.

[0043] The above-mentioned walking structure is an electrically driven power structure.

[0044] The balance support is fixedly installed on the truss structure, and the high point of the balance support is in rolling contact with the beam bottom, and under the action of the contact, the stability of the truss structure is ensured. Figures 2-5 The balance support is described in detail.

[0045] The balance support 102 comprises a support frame, an end seat 1021, a roller 1023 and a pin shaft III 1022. The support frame is a rectangular rigid support frame structure, is installed on the truss structure, and the end seat 1021 is fixedly installed at the high point of the support frame. The roller is installed on the end seat through the pin shaft III 1022, is in close contact with the beam bottom, can rotate freely, is a rolling contact, increases the contact between the truss structure and the beam bottom, and is beneficial to the stability of the truss structure.

[0046] Further, the overall height of the balance support 102 can be adjusted according to the slope of the beam bottom, so as to ensure the posture balance of the moving platform.

[0047] Further, the roller 1023 in the balance support 102 is a conical roller, and the angle of the conical roller is consistent with the inclination angle of the beam bottom.

[0048] In the embodiment, the walking structure 200 is provided with two groups, one in front of the other, and is held on the track of the I-shaped steel structure to form a suspension structure. Referring to Figure 6 and Figure 7 The walking structure comprises a motor 201, a gearbox 202, a driving gear 203, a driving wheel 204, a structural steel plate 205, a fixing bolt 206, a pin shaft I 207 and a flange I 208.

[0049] The walking structure 200 is formed by two structural steel plates 205, and the two structural steel plates are connected and fixed by a plurality of fixing bolts 206 to form a frame structure. The steel pipe frame of the truss structure 1 is connected through the flange I 208 and the pin shaft I 207 at the low point of the two structural steel plates, and meanwhile, the driving wheel 204, the driving gear, the driving gear shaft, the motor and the gearbox are installed in the space between the two structural steel plates. The input end of the gearbox is mechanically connected with the motor, the output end of the gearbox is mechanically connected with the driving gear shaft, and the left and right driving gears are installed on the driving gear shaft. The driving wheel 204 is driven to rotate through gear transmission, and the meshing gear is fixedly assembled on the driving wheel 204. It is easy to understand that the power path is the motor, the gearbox, the driving gear shaft, the gear transmission and the driving wheel.

[0050] The top of the structure is hung on the lower flange plate of the installed I-shaped inspection track by the driving wheel 202, forming a kind of hanging structure.

[0051] The specific driving process is that the motor 201 installed on the outside provides power, the motor 201 is reduced in speed through the gearbox 202, the gearbox 202 is connected with the driving gear 203, the driving gear 203 drives the driving wheel 204, and the driving wheel 204 rolls forward (or backward) on the lower flange plate of the inspection track.

[0052] A locking structure 300 is installed in the space between the two walking structures 2, and the locking structure is a temporary fixing structure for locking the position of the truss structure.

[0053] Reference Figure 8 and Figure 9 The locking structure 300 includes a hand wheel 301, a clamping steel plate 302, a pin shaft II 303, a flange II 304, a screw 305, and an anti-skid pad 306.

[0054] The bottom of the locking structure 3 is connected with the truss structure 1 through the flange 304 II and the pin shaft II 303. Specifically, the middle part of the pin shaft II 303 is fixedly connected with the flange II 304, and the flange II 304 is weldedly connected with the truss structure. Two clamping steel plates 302 are slidably fitted on the left and right ends of the pin shaft II 303, that is, the lower end of the clamping steel plate 302 is provided with a light hole and is slidably fitted with the pin shaft II 303. Spring clamps for limiting the clamping steel plates are arranged at the two outermost ends of the pin shaft II 303. A screw 305 is arranged at the middle position between the two clamping steel plates 302. Specifically, the screw 305 is provided with left-handed and right-handed threads at the two ends, and the clamping steel plates 302 on the two sides are correspondingly provided with left-handed and right-handed threaded holes. Through the above positive and negative threads, the screw and the clamping steel plates on the two sides form a mechanical connection with an adjustable spacing. The outer end of the screw 305 is connected with the hand wheel 301, and the spacing between the clamping steel plates 302 and the web plate of the installed inspection track (I-shaped steel) can be adjusted by rotating the hand wheel 301. Anti-skid pads 306 are arranged at the positions where the top inner sides of the clamping steel plates 302 contact the web plate, which can increase the clamping degree between the I-shaped steel web plate and the anti-skid pads 306, and have the effect of increasing the friction force, extruding and locking or loosening.

[0055] The use method of this part is that when the platform is adjusted to the position under the driving of the walking structure, or the locking structure is manually rotated and tightly clamped between the I-shaped steel, forming a temporary fixing. Conversely, when the position of the device needs to be adjusted again, loosen the cooperation between the locking structure and the I-shaped steel, and then adjust the position under the driving of the walking structure.

[0056] The device also has a stop structure, referring to Figure 10 andFigure 11 The stop structure 400 includes a U-shaped steel plate 401, a baffle plate 402, and an open pin 403.

[0057] The U-shaped steel plate 401 in the stop structure 4 is a U-shaped bent thick steel plate with an open upper end. The baffle plates 402 are welded on both sides of the U-shaped steel plate. The open upper end of the U-shaped steel plate 401 is provided with a pin hole and connected with the open pin 403. After the U-shaped steel plate is wrapped from bottom to top around the installed maintenance track, the stop structure is temporarily fixed at the end of the track. After being fixed, the baffle plates 402 on both sides stop the running structure 200, preventing the running structure 200 from sliding out of the track range, which is a safety measure.

[0058] During construction, the stop structure 400 is fixed at the end of the installed maintenance track. A suspended mobile platform for installing the beam bottom maintenance track loads the track to be installed, supports, hand-operated hoists and other tools from the starting position. The construction personnel control the running structure 200 to move the mobile platform forward to the maintenance track installation position. The hand-operated wheel 301 is tightened to temporarily lock the mobile platform by using the locking structure 300. The construction personnel install the support to be installed and the maintenance track 500 by using the hand-operated hoist and other tools. The stop structure 400 is moved forward to the inside of the just-installed support. The hand-operated wheel 302 is tightened in reverse to loosen the locking structure 300. The running structure 200 is controlled to walk back to the starting position. The next maintenance track and the corresponding support are loaded. The above steps are repeated until the installation of the beam bottom maintenance track is completed.

[0059] In the device, the maintenance track walks on the installed maintenance track through the running structure, the position is locked by using the locking structure, the stop structure is set to prevent the mobile platform from sliding out of the track. By using the device, the cantilever installation of the beam bottom maintenance track is realized. The investment of lifting equipment and temporary supports is reduced, the safety risk is reduced, and the installation difficulty of the maintenance track under special working conditions such as crossing deep gorges, high-clearance bridges or tidal water areas is solved.

Claims

1. A suspended mobile platform for installing a maintenance track on the bottom of a beam, comprising a maintenance track and an electromechanical platform for position adjustment along the track, the maintenance track being fixed to the bottom of the beam and providing a guide for the electromechanical platform, characterized in that: The electromechanical platform comprises a truss structure, a walking structure, a locking structure and a stop structure. The truss structure comprises a truss beam and a balance support, and the high point of the balance support is in rolling contact with the beam bottom. The walking structure is fixed on the truss structure and mechanically cooperates with the maintenance track in a suspended manner, and the driving wheels in the walking structure roll along the track and drive the truss structure to advance and retreat. The locking structure is fixed on the truss structure and has two states of loosening and locking with the maintenance track, and the locking state fixes the truss structure with the maintenance track. The stop structure is mechanically fixed at the end of the maintenance track.

2. The suspended mobile platform for installing a beam bottom access track according to claim 1, characterized in that, The walking structure comprises a motor, a gearbox, a driving gear, a driving wheel, a structural steel plate, a pin shaft I and a flange I, the low point of the structural steel plate is fixedly connected with the truss structure through the flange I and the pin shaft I, the space between the structural steel plates is provided with the driving wheel, the driving gear and the driving gear shaft, the motor and the gearbox are installed on the outside of the structural steel plate, the input end of the gearbox is mechanically connected with the motor, the output end of the gearbox is mechanically connected with the driving gear shaft, the left and right two driving gears are installed on the driving gear shaft, and the driving gear is driven and connected through gear transmission.

3. The suspended mobile platform for installing a beam bottom maintenance track according to claim 1, characterized in that, The locking structure comprises a manual wheel, a clamping steel plate, a pin shaft II, a flange II and a screw rod, the pin shaft II is fixedly connected with the flange II, the flange II is fixedly connected with the truss structure, the lower end of the clamping steel plate is provided with a light hole and is in sliding cooperation with the pin shaft II, the screw rod is arranged between the two clamping steel plates, and the screw rod and the clamping steel plate are in adjustable spacing mechanical connection through forward and reverse threads.

4. The suspended mobile platform for installing a beam bottom access walkway according to claim 3, characterized in that, The outer end of the screw rod is connected with the manual wheel.

5. The suspended mobile platform for installing a beam bottom access walkway according to claim 4, characterized in that, The inner side of the top of the clamping steel plate is provided with an antiskid pad.

6. The suspended mobile platform for accessing the beam bottom of a railcar according to claim 1, wherein, The stop structure comprises a U-shaped steel plate, a baffle and a split pin, the baffles are welded on the two sides of the U-shaped steel plate, the upper end of the U-shaped steel plate is provided with a pin hole and is connected with the split pin, and then the U-shaped steel plate is wrapped on the maintenance track from bottom to top.

7. The suspended mobile platform for accessing the beam bottom of a railcar according to claim 1, wherein, The truss beam is a cuboid frame structure formed by welding longitudinal, transverse, vertical and diagonal square steel pipes, and is provided with a bottom plate.

8. The suspended mobile platform for accessing the beam bottom of a railcar according to claim 1, wherein, The balance support comprises a support frame, an end seat, a roller and a pin shaft III, the support frame is installed on the truss structure, the end seat is fixed at the high point of the support frame, and the roller is installed on the end seat through the pin shaft III.

9. The suspended mobile platform for installing a beam bottom access walkway according to claim 8, characterized in that, The roller is a conical roller, and the angle of the cone is consistent with the inclination angle of the beam bottom.

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