CN215925633U

CN215925633U - Bridge overhauls maintenance platform

Info

Publication number: CN215925633U
Application number: CN202121019976.5U
Authority: CN
Inventors: 齐建周
Original assignee: Shaanxi Weida Machinery Manufacturing Co ltd
Current assignee: Shaanxi Weida Machinery Manufacturing Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2022-03-01
Anticipated expiration: 2031-05-13

Abstract

The utility model provides a bridge overhauling and maintaining platform which comprises a chassis, a swing frame, a large stand column of a rack, a rotating base and a telescopic workbench, wherein one end of the swing frame is fixed above the chassis, and the other end of the swing frame is connected with the large stand column of the rack; the swing frame consists of four-bar mechanisms, an amplitude-variable oil cylinder is arranged in the middle of each four-bar mechanism, and a telescopic oil cylinder is further arranged at the front end of each four-bar mechanism and is connected with the large stand column of the rack; the large stand column of the rack is also connected with a rotating base, the rotating base comprises a slewing bearing, and the slewing bearing is connected with the large stand column of the rack; the telescopic workbench comprises a transverse moving telescopic frame and the transverse moving telescopic frame is connected with the rotating base. The utility model discloses a bridge overhaul and maintenance platform which comprises: firstly, can directly operate on the bridge floor, solve the superelevation or the unable problem of using of sea bridge, secondly can directly arrange in and transport on the haulage truck, simple structure does benefit to the transportation.

Description

Bridge overhauls maintenance platform

Technical Field

The utility model relates to bridge overhauling and maintaining equipment, in particular to a bridge overhauling and maintaining platform.

Background

Along with the change of the traffic travel mode, the number of bridges is increasing, and the requirements of bridge maintenance and overhaul on the influence of traffic are becoming more and more strict.

The existing overhaul climbing vehicle for the bridge in the current market can only be applied to the bridge without rivers and lakes and with a flat pavement under the bridge, and the equipment is transported to the position below the bridge floor to be lifted for high-altitude operation, so that the overhaul climbing vehicle cannot be used for an ultra-high or sea-crossing bridge. A small number of large engineering trucks integrated with vehicles can be used, but the overall structure on the chassis of the heavy truck is complex, so that the cost is high, and the large engineering trucks integrated with vehicles are not beneficial to popularization and use. In order to solve the dual limitations of cost and application occasions, a bridge maintenance device which is low in cost, simple in structure, wide in application range and beneficial to transportation is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bridge maintenance platform, which can be used for directly operating on a bridge floor without transporting equipment below the bridge floor to lift high-altitude operation, solves the problem that an ultrahigh or sea-crossing bridge cannot be used, can be directly placed on a transport truck to be transported, has a simple structure and a wide application range, and is beneficial to transportation.

In order to solve the technical problems, the utility model adopts the technical scheme that the bridge overhauling and maintaining platform comprises a chassis, a swing frame, a large stand column of a rack, a rotating base and a telescopic workbench, wherein one end of the swing frame is fixed above the chassis, and the other end of the swing frame is connected with the large stand column of the rack; the swing frame consists of four-bar mechanisms, an amplitude-variable oil cylinder is arranged in the middle of each four-bar mechanism, and a telescopic oil cylinder is further arranged at the front end of each four-bar mechanism and is connected with the large stand column of the rack; the large stand column of the rack is also connected with a rotating base, the rotating base comprises a slewing bearing, and the slewing bearing is connected with the large stand column of the rack; the telescopic workbench comprises a transverse moving telescopic frame and the transverse moving telescopic frame is connected with the rotating base.

According to the bridge overhauling and maintaining platform, the chassis is also placed on the transport truck.

In the bridge overhauling and maintaining platform, the transverse moving expansion bracket consists of at least two sections of expansion brackets.

According to the bridge maintenance platform, the rotating base is further provided with the speed reduction hydraulic motor for providing rotating power for the rotating base.

The bridge overhauling and maintaining platform is characterized in that the transverse moving expansion bracket is provided with a group of expansion oil cylinders and a group of overturning oil cylinders.

The utility model has the beneficial effects that: (1) the integral structure of the utility model adopts a multilayer folding structure, when the equipment is consigned, the occupied space is reduced to the minimum, the occupied space for transportation in the vehicle is saved, and the vehicle-mounted transportation and the storage are convenient.

(2) The whole structure of the utility model adopts a modular design, the whole platform consists of a truck (for transportation), a chassis, a swing frame, a large stand column of a machine frame, a rotating base and a telescopic workbench, and each part is convenient to disassemble and maintain.

(3) The device can be directly operated on the bridge floor, does not need to be transported to the position below the bridge floor for lifting and aloft work, solves the problem that the super-high or sea-crossing bridge cannot be used, and is particularly suitable for bridge maintenance work of large rivers.

Drawings

FIG. 1 is a side view of the bridge maintenance platform of the present invention during transportation;

FIG. 2 is a structural diagram of a chassis of a bridge maintenance platform of the present invention;

FIG. 3 is a structural diagram of a swing frame of the bridge maintenance platform of the present invention;

FIG. 4 is a structural diagram of a large upright post of a bridge maintenance platform frame;

FIG. 5 is a structural diagram of a rotary base of the bridge maintenance platform of the present invention;

FIG. 6 is a structural diagram of a telescopic workbench of the bridge maintenance platform of the utility model;

FIG. 7 is a structural diagram of a bridge maintenance platform in a specific working state;

reference numerals: the device comprises a truck-1, a chassis-2, a swing frame-3, a large stand column-4 of a frame, a rotating base-5, a telescopic workbench-6, a luffing cylinder-7, a telescopic cylinder-8, a telescopic cylinder group-9, a turnover cylinder group-10, a front transport wheel-11, a rear transport wheel-12 and a horizontal telescopic frame-13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1-6, a bridge maintenance platform comprises a chassis 2, a swing frame 3, a large frame column 4, a rotating base 5 and a telescopic workbench 6, wherein one end of the swing frame 3 is fixed above the chassis 2, and the other end of the swing frame 3 is connected with the large frame column 4; the swing frame 3 consists of four-bar mechanisms, a variable amplitude oil cylinder 7 is arranged in the middle of each four-bar mechanism, and a telescopic oil cylinder 8 is further arranged at the front end of each four-bar mechanism and is connected with a large stand column of the rack; the rack large upright post is also connected with a rotating base 5, the rotating base 5 comprises a slewing bearing, and the slewing bearing is connected with the rack large upright post; the telescopic workbench comprises a transverse telescopic frame, the transverse telescopic frame is connected with the rotating base, the transportation chassis and the platform are designed into a whole, and the transportation chassis is driven by power to move, walk and steer at a low speed. The chassis is consistent with the traction butt joint standard of the conventional transportation trailer, and is convenient for traction transportation of all trailer heads.

As shown in fig. 6, the transverse moving expansion bracket is composed of at least two expansion brackets, and a telescopic cylinder group 9 and a turning cylinder group 10 are further arranged on the transverse moving expansion bracket.

As shown in fig. 5, a decelerating hydraulic motor is further disposed on the rotating base for providing a rotating power of the rotating base.

As shown in figure 7, in actual operation, the operation can be directly carried out on the bridge floor, and the equipment does not need to be transported to the position below the bridge floor for lifting high-altitude operation, wherein the truck 1 is used for long-distance transportation, and the whole bridge overhauling and maintenance platform is transported to the position near a construction site.

The chassis 2 of the bridge overhaul and maintenance platform further comprises a front transport wheel 11 and a rear transport wheel 12 at the bottom, and the chassis 2 can be in butt joint with a standard trailer. The specific implementation method comprises the following steps: the front transport wheels 11 are power wheels and driven by a hydraulic motor, the joints of the front transport wheels 11 are connected with slewing bearings for steering movement, and power is provided by a slewing motor.

The main body of the swing frame 3 of the bridge overhauling and maintaining platform consists of a diamond plane four-bar mechanism, and the space recovery of the whole platform during transportation is completed through the amplitude-variable oil cylinder. Meanwhile, the front connecting part is connected with the chassis and consists of a group of amplitude-variable oil cylinders and a group of telescopic oil cylinders, and the front connecting part is used for compressing the space of the whole machine during long-distance transportation.

The rotary base 5 is connected with the large upright post and the telescopic workbench through a slewing bearing and is used for space recovery during long-distance transportation and small space adjustment during construction operation.

The transverse moving expansion bracket consists of at least two expansion brackets, and a telescopic oil cylinder group 9 and a turnover oil cylinder group 10 are also arranged on the transverse moving expansion bracket. The telescopic device has the functions of horizontal telescoping and overturning telescoping, and respectively completes horizontal telescoping movement and retraction equipment.

During construction, whether the traction transportation vehicle head needs to be unloaded or not is firstly determined according to the requirement (if the vehicle head is leased, the vehicle head is recommended to be withdrawn, so that the cost is saved). The operation of the platform is described herein in terms of delivery truck unloading. Before unloading the transport truck, the front transport wheels 11 contract the oil cylinder to act, and the rear transport wheels are in contact with the ground, so that the transport truck can normally bear the transport action. At the moment, the hydraulic motor in the rear transport wheel is controlled to act in a remote mode, the platform is adjusted to a proper position, and at the moment, the rear transport wheel acts completely. After the general position of the platform is adjusted, the warning lamp is turned on to pay attention to the shadowless effect of field traffic, at the moment, the speed reduction hydraulic motor under the chassis acts (below the joint of the swing frame 3) to drive the slewing bearing to slowly rotate to the position of about 90 degrees, and at the moment, the telescopic oil cylinder and the two pairs of amplitude-variable oil cylinders in the swing frame 3 act in a combined manner to adjust the large stand column of the rack to the outside of the road surface of a construction field. The stand is perpendicular with the construction platform. After all preparations are completed, the telescopic oil cylinder 9 acts to completely lower the relevant connection part of the rotary base 5 to the position below the construction bridge, after the height position is adjusted properly, the oil cylinder group 10 is turned over to act, the horizontal telescopic frame 13 acts to the horizontal position, the construction operator can be normally positioned in the telescopic frame fence at the moment, after the action is completed, the rotary base 5 rotates to the 90-degree position, and the telescopic workbench (the construction operator) is conveyed below the construction bridge to carry out normal construction operation. At the moment, the angle of the rotating base can be adjusted according to the construction area, the construction height of the telescopic oil cylinder group 9 can be adjusted, the construction depth of the horizontal telescopic frame 13 can be adjusted, and the front transport wheel driving wheel 11 drives the whole construction area to move forwards and backwards. All construction actions are completed. After the platform construction is finished, the horizontal expansion bracket 13 is completely retracted, the rotary base is rotated to the initial position, constructors leave the construction platform (the horizontal expansion bracket), the stroke of the oil cylinder group 10 is turned to the maximum position, and the horizontal expansion bracket and the large stand column 4 of the rack perform parallel actions; the telescopic oil cylinder group 9 retracts to the shortest stroke, and then the whole platform is completely retracted through the combined action of the telescopic oil cylinder and the amplitude-variable oil cylinder of the swing frame; and finally, the hydraulic motor positioned below the swing frame drives the whole working frame to rotate to the length direction to be parallel to the platform, and all actions are finished. When the truck is hauled with its long head, the chassis is connected to the truck and the front transport wheels 11 are driven to contract, so far, all contraction is completed. Can be directly transported for a long distance.

The utility model can directly carry out omnibearing operation on the lower bridge floor area on the bridge floor, does not need to transport equipment below the bridge floor to carry out lifting high-altitude operation, solves the problem that an ultrahigh or sea-crossing bridge cannot be used, and is particularly suitable for bridge overhauling and maintenance work of large rivers.

The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modifications to the technical solutions described in the above embodiments, and equivalents of some technical features are included in the scope of the present invention.

Claims

1. A bridge overhaul and maintenance platform comprises a chassis, a swing frame, a large stand column of a rack, a rotating base and a telescopic workbench, and is characterized in that one end of the swing frame is fixed above the chassis, and the other end of the swing frame is connected with the large stand column of the rack; the swing frame consists of four-bar mechanisms, an amplitude-variable oil cylinder is arranged in the middle of each four-bar mechanism, and a telescopic oil cylinder is further arranged at the front end of each four-bar mechanism and is connected with the large stand column of the rack; the large stand column of the rack is also connected with a rotating base, the rotating base comprises a slewing bearing, and the slewing bearing is connected with the large stand column of the rack; the telescopic workbench comprises a transverse moving telescopic frame and the transverse moving telescopic frame is connected with the rotating base.

2. A bridge overhaul and maintenance platform according to claim 1 wherein the traversing telescopic frame is comprised of at least two sections of telescopic frames.

3. The bridge overhauling and maintaining platform of claim 1, wherein the rotating base is further provided with a deceleration hydraulic motor for providing rotating power for the rotating base.

4. A bridge overhauling and maintenance platform according to claim 1, wherein a set of telescopic cylinders and a set of overturning cylinders are arranged on the transverse moving telescopic frame.