CN109056519B

CN109056519B - Maintenance vehicle and maintenance system

Info

Publication number: CN109056519B
Application number: CN201810876111.7A
Authority: CN
Inventors: 梁大伟; 殷保东
Original assignee: Hefei Chunhua Hoisting Machinery Co Ltd
Current assignee: Hefei Chunhua Hoisting Machinery Co Ltd
Priority date: 2018-08-02
Filing date: 2018-08-02
Publication date: 2021-03-23
Anticipated expiration: 2038-08-02
Also published as: CN109056519A

Abstract

An inspection vehicle and an inspection system belong to the field of bridges. The maintenance car comprises a main truss, a clamping assembly, a lifting platform and a rail clamping device. The service vehicle is configured to provide a work platform for operator walk-around and service equipment storage. The clamp assembly is used to connect the main truss to the main beam and allow the main truss to move along the main beam. The clamping assembly comprises a supporting truss and a traveling wheel set, and the main truss moves through the supporting truss driven by the traveling wheel set. The lifting platform is arranged between the two clamping assemblies and can drive the main truss to selectively ascend or descend relative to the main beam. The rail clamping device is combined with the supporting truss and can optionally clamp and release the main beam, and the clamping device and the travelling wheel set can work independently. The maintenance vehicle in the example is stable and firm, has good safety performance, is convenient to operate and use, can carry out all-dimensional and all-dimensional detection and maintenance on the bridge, and is suitable for popularization and implementation.

Description

Maintenance vehicle and maintenance system

Technical Field

The invention relates to the field of bridges, in particular to an overhaul vehicle and an overhaul system.

Background

Along with the traffic industry of China, especially the development of infrastructure construction relating to traffic, as an important part in traffic, the bridge plays an increasingly important role in the economic development process. Accordingly, the safety of the bridge is also referred to as a high standard and requirement. In the daily maintenance of the bridge, workers need to overhaul the bridge at intervals. In the process of maintenance, workers finish the maintenance of the bridge through the bridge maintenance frame.

The bridge is overhauled and maintained in an omnibearing and three-dimensional way, and the overhaul operation is simple, safe, comprehensive and efficient, which is necessary. At present, the maintenance operation of bridge engineering has high requirements on site, a construction site is flat and anhydrous, the maintenance cost is high, the efficiency is not high, the construction safety cannot be guaranteed, and the operation surface is small. The operation platform adopting the hanging basket type is unstable, high in cost, incapable of ensuring a construction working surface and low in operability. When the bridge construction overhaul platform is designed, the site construction conditions, the manufacturing size, the construction safety, the size of an operation surface and the economical efficiency need to be comprehensively considered.

Disclosure of Invention

Based on the defects of the prior art, the invention provides an inspection vehicle and an inspection system, which are used for partially or completely improving and even solving the problems in the prior art.

The invention is realized by the following steps:

in a first aspect of the invention, an inspection vehicle is provided.

The maintenance vehicle is used for being combined on a main beam of the bridge in a mode of suspending a crane and moving so as to be convenient for maintenance.

The tool car includes:

a main truss configured to provide a work platform for operator walk and service equipment storage;

the clamping assembly is used for connecting the main truss to the main beam and allowing the main truss to move along the main beam, and comprises a supporting truss and a traveling wheel set, and the main truss moves through the supporting truss driven by the traveling wheel set;

the lifting platform is arranged between the two clamping components and can drive the main truss to selectively ascend or descend relative to the main beam;

and the rail clamping device is combined on the supporting truss and can be used for optionally clamping and releasing the main beam, and the clamp and the traveling wheel set can work independently.

In one or more preferred examples, the main truss is provided in sections, and the different sections are connected by flanges.

In one or more preferred examples, the main truss has guard rails and a bottom plate, and the guard rails are disposed on opposite side edges of the bottom plate.

In one or more preferred examples, the running gear set is driven by an active running motor.

In one or more preferred examples, the running gear set is driven by a sprocket, and the sprocket is provided with a zipper in a matching manner.

In one or more preferred examples, the sprocket and the drive travel motor are selectively switched by a selector while only one is operating.

In one or more preferred examples, the running wheel sets are engaged by rail h-beams, which are secured to the main beams by rolling contact with the roller wheels.

In one or more preferred examples, the maintenance vehicle further comprises a limiting block configured to limit the out-of-range movement of the running wheel set, and the limiting block is fixed at the tail end of the rail I-steel.

In one or more preferred examples, the maintenance vehicle further comprises an inspection platform, the inspection platform is fixed on the main truss, the inspection platform comprises a lifting frame and a protective frame for an operator to take, one end of the lifting frame is combined on the main truss, and the other end of the lifting frame is connected with the protective frame.

In a second aspect of the invention, a service system is provided.

The maintenance system comprises a power supply device and a maintenance vehicle. The power supply device is configured to supply power to the running wheel set.

Has the advantages that:

the maintenance vehicle provided by the embodiment of the invention at least has the following advantages.

1. The maintenance vehicle for bridge maintenance in the invention example comprises a main truss, a clamping assembly, a lifting platform and a rail clamping device. The maintenance vehicle adopts a suspension type crane scheme and is inverted on a main beam of the bridge through a traveling wheel set. The maintenance vehicle has good safety and can carry out more comprehensive detection and maintenance.

2. The main truss of the maintenance vehicle can provide a channel and a platform for an operator to move up and down, and is convenient to use. The main truss can bear the load such as dead weight, operating personnel and maintenance inspection utensil article, and the structure is firm.

3. The structural components are detachably and fixedly connected through components such as bolts or hoops. The connecting structure is convenient to install and use, parts are convenient to package and transport, the installation work amount is small, the cost is low, and the overhaul period is shortened.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a maintenance vehicle according to an embodiment of the present invention;

figure 2 shows a schematic cross-sectional view of the main truss of the maintenance vehicle of figure 1;

FIG. 3 shows a schematic view of the main truss of FIG. 2 connected by flanges;

FIG. 4 shows a schematic view of the outrigger of the repair vehicle of FIG. 1 coupled to a running wheel set;

FIG. 5 shows a schematic view of a running wheel set of the repair vehicle of FIG. 4;

FIG. 6 is a schematic view of a first view of a rail clamp in another maintenance vehicle according to an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating a second view of a rail clamp in another maintenance vehicle according to an embodiment of the present invention.

Icon: 101-a main truss; 102-a flange; 103-a lattice truss; 104-running wheel set; 1041-a connecting frame; 1042-active running motor; 1043-pin roll; 1044-a zipper; 1045-i-steel rail; 105-a rail clamp; 1051-a scaffold; 1052-clamping rail plate; 1053-rocker handle; 1054-axis; 1055-screw seat; 106-main beam; 107-lifting platform.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments 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 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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

All embodiments, implementations and features of the invention can be combined with each other in the invention without contradiction or conflict. In the present invention, conventional devices, apparatuses, components, etc. are either commercially available or self-made according to the present disclosure. In the present invention, some conventional operations and apparatuses, devices, components are omitted or only briefly described in order to highlight the importance of the present invention.

See fig. 1-7.

The maintenance vehicle provided by the embodiment is used for being combined on the main beam 106 of the bridge in a manner of suspending a crane and being capable of moving so as to carry out maintenance.

The maintenance car comprises a main truss 101, a clamping assembly, a lifting platform 107 and a rail clamp 105. In other embodiments, the maintenance vehicle is mainly composed of a main truss 101, a supporting truss, a running mechanism, a lifting platform 107 (preferably using movable equipment capable of moving), and a running track.

The main truss 101 is configured to provide a work platform for operator walk and service equipment storage. The main girder 101 constitutes a main part of the maintenance vehicle and provides a connection and fixing portion for other parts in the maintenance vehicle. Referring to fig. 2, the main truss 101 is a bolted assembled truss. In order to reduce the self weight of the maintenance equipment, the whole structure adopts a truss-girder type structure taking an aviation aluminum alloy section bar (such as 6061-T6) as a main material. The main truss 101 is of an inverted trapezoidal truss girder structure, the used section bars are mainly hollow square steel and equilateral angle steel, and a steel grating is laid above the inverted trapezoid for the traveling of the movable lifting platform 107. The handrail is arranged on two sides of the main truss 101, and personal safety of constructors is guaranteed. When the main girder 101 has a large outer length, for example, up to 39m, it can be divided into 3 segments, which are connected to each other by the flanges 102, in consideration of convenience in manufacturing, installation, and transportation of the main girder. The attachment site is shown in fig. 3. I.e. the main girder 101 is arranged in sections and the different sections are connected by flanges 102. Preferably, the main girder 101 has guard rails and a bottom plate, and the guard rails are disposed at opposite side edges of the bottom plate. The bottom plate is convenient to arrange and install various parts, the guardrail enables an operator to walk more safely, and the equipment is prevented from falling accidentally.

There are at least two clamping assemblies, or more such as three, four, five, six, etc., as desired. The clamp assembly is used to attach the main truss 101 to the main beam 106 and allow the main truss 101 to move along the main beam 106. The clamping assembly includes a lattice 103 and running wheels 104. The connecting function is mainly performed by the lattice 103, while the shifting function is performed by the running gear set 104. Main girder 101 is moved by a lattice girder 103 driven by a traveling wheel set 104. That is, running wheels 104 move along the girders 106 of the bridge while driving the movement of the lattice 103. Accordingly, lattice boom 103 moves main truss 101.

Referring to fig. 4, lattice truss 103 is a frame triangular structure welded with low-alloy, high-strength structural steel. The upper part of the main truss is connected with the running wheel set 104 through bolts, and the lower bottom surface of the main truss is connected with the bottom surface of the main truss 101 to play a role in supporting.

The traveling wheel set is a power supply device for the maintenance vehicle to move on the main beam 106 of the bridge. The number of sets of running wheels can be chosen freely, depending on the length of the bridge, for example 4 sets in total in this embodiment. The running wheel set 104 is connected with the main truss 101 through a connecting frame 1041 provided with a pin 1043. The whole inspection vehicle adopts a storage battery self-generating mode to drive the wheel set and drive the inspection vehicle to run along the track. Under the condition that a power supply system has a fault, the driving walking motor 1042 can be switched to manually drag the zipper 1044 through the clutch mechanism to enable the chain wheels to rotate so as to drive walking, and the whole mechanism is safe and reliable, stable in walking and convenient to disassemble, assemble and replace.

The running wheel set 104 is, in an easy-to-implement solution, fitted with rail i-beams. The running wheel set 104 is in rolling contact with the rail i-steel through the rollers, and the rail i-steel is fixed on the main beam 106. The rail h-beams may be secured to the main beams 106 by welding or bolting, and the running wheel assemblies 104 may be coupled to the rail h-beams via steel wheels. In addition, in order to limit the range of motion of the maintenance vehicle, as a modified example, the maintenance vehicle further includes a stopper configured to restrict the traveling wheel set 104 from moving out of range. The limiting block is fixed at the tail end of the rail I-shaped steel. When the maintenance vehicle moves to the limiting block, the steel wheels of the walking wheel set 104 can be prevented from continuously running. Preferably, the limiting block is matched with the active traveling motor 1042 through an electromagnetic induction switch. Thus, when the running wheel set 104 moves to be close to the limiting block, the running wheel set 104 can automatically stop, so that the maintenance vehicle stops. Typically, the stop can be provided as part of the running gear. In other words, the walking limiting device mainly comprises a limiting block arranged at the end part of the I-shaped steel rail 1045. When the device is used, the electric trigger limit device arranged on the inspection trolley contacts the limit block, so that the running wheel set 104 can be correspondingly stopped. The walking limiting device can ensure that the inspection vehicle walks in the I-shaped steel rail 1045.

Alternatively, the running gear set 104 is driven by an active running motor 1042. Alternatively, the running wheels 104 are driven by sprockets that are matably provided with zippers 1044. The combination of the two driving schemes can make the maintenance vehicle move more flexibly and can deal with various different construction conditions. Preferably, the sprocket and propel motor 1042 are selectively switched by a selector and only one operates at a time. The active running motor 1042 can drive the running gear set 104 under the condition of smooth power supply. The chain wheel can be manually operated by an operator to drive the running wheel set 104 to move when the power supply is not normal.

The lifting platform 107 is disposed between the two clamping assemblies and is capable of driving the main girder 101 to selectively ascend or descend with respect to the main girder 106. The lifting platform 107 can be lifted by the cooperation of a pulley block and a steel cable, or the lifting platform 107 can be lifted by a hydraulic cylinder.

The rail clamp 105 is used to reinforce the maintenance vehicle to the main beam 106 or to stabilize the maintenance vehicle during maintenance without causing large vibration. Rail clamps 105 are coupled to lattice 103 and are capable of selectively clamping and releasing main beams 106. When the rail clamp 105 is clamped to the main rail 106, the maintenance vehicle is fixed as needed. When it is necessary to transfer the position of the maintenance vehicle, the rail clamp 105 releases the main beam 106, i.e., disengages from the main beam 106.

Preferably, rail clamps 105 are mounted on the connecting beams of lattice 103. In one embodiment, rail clamp 105 generally includes a screw base 1055, a bracket 1051 for a rail clamp plate 1052, a shaft 1054, and a rocker handle 1053. When the inspection vehicle (maintenance vehicle/maintenance vehicle) runs to a certain position and stops for maintenance, the worker can shake the handle to drive the screw rod seats 1055, so that the left and right screw rod seats 1055 clamp the web of the I-shaped steel rail 1045, and the inspection vehicle is fixed. In addition, in the advancing process of the maintenance vehicle, the gap between the rail clamping device 105 and the rail is adjusted, so that the shaking of the maintenance vehicle can be effectively resisted.

The grippers can be operated independently of the running wheel sets 104 for on-demand operation. Wherein the running wheel set 104 can move by request to the position where the bridge needs to be overhauled. When the running wheel set 104 is moved to a designated position, the grippers grip the main beam 106, so that the maintenance vehicle is restrained in a desired position.

Further, the maintenance vehicle also comprises an inspection table. The inspection table is fixed to the main girder 101. The inspection bench includes crane and the protection frame that supplies the operator to take, and crane one end combines at main truss 101, and the other end and the protection frame of crane are connected.

The maintenance system based on the maintenance vehicle can also be provided with a power supply device, a control console and the like. For example, the maintenance system includes a power supply device, a maintenance vehicle, and a console. The power supply system is controlled by the console and is configured to supply power to the running wheel set 104. All the electric equipment are electrically connected through cables. Further, in a modified example, the maintenance vehicle may be correspondingly configured with the control system. The control system may include PLC controls to provide relevant safeguards for personal and equipment safety. In addition, the wind speed is detected through the configured anemometer, so that the maintenance vehicle is prohibited from working under the working condition that the allowable wind speed is exceeded.

Preferably, the power supply system of the maintenance vehicle is composed of a running gear power supply system, a hydraulic lifting platform 107 power supply system, an illumination system and the like. A power supply system of the walking mechanism: the generator supplies power. The hydraulic lifting platform 107 supplies power: wiring is provided in the main truss 101, and a patch board for use in the elevating platform 107 is provided. An illumination system: an illumination lamp and a running indicator lamp are mounted on the main truss 101. The communication system adopts the mutual contact of wireless interphones, ensures the mutual contact of equipment operation personnel and maintainer. The equipment operator operates the equipment, the power supply system and other components through the console.

Overall, the maintenance vehicle has the following characteristics:

according to the structural form of the main beam 106 of the bridge, the embodiment of the invention provides a scheme that a maintenance vehicle (maintenance vehicle) adopts a suspension crane. I.e. the drive mechanism of the maintenance vehicle (in this example the running wheel set 104) is laid upside down on the i-steel rail 1045 by means of steel wheels. The maintenance vehicle mainly comprises a maintenance vehicle assembly, a fine frame, a driving mechanism, a railing, a ladder, an electrical design and the like. The repair vehicle is mainly composed of a truss and a driving mechanism (running mechanism), and the main truss 101 structure can be connected with the running mechanism through 2 groups of supporting trusses 103. The truss mainly bears the loads of dead weight, pedestrians, maintenance and inspection equipment and the like.

The maintenance vehicle runs by adopting two driving mechanisms of electric driving and manual driving. The maintenance vehicle is driven by an electric driving mechanism under the normal working condition. The electric driving mechanism is in a self-generating mode. And a manual driving mechanism is adopted for driving under the condition of power failure. Travel switches are arranged in the advancing direction and the returning direction of the vehicle body so as to protect the safety when the vehicle returns to connect with the bridge pier. Each motor is independently controlled and can be integrally controlled, so that the motor is decelerated and accelerated to overcome the asynchronous phenomenon in the process of advancing.

The maintenance vehicle can be used for inspecting and maintaining components, connecting welding seams and connecting bolts, such as steel bridge deck plates, longitudinal beams, stiffening ribs and the like on the lower bottom surface of the bridge. In addition, the maintenance vehicle can also be used for carrying out inspection and maintenance on all members, connecting welding seams and connecting bolts, such as steel bridge deck plates, longitudinal beams, stiffening ribs and the like of the cantilever beam outside the bridge and the orthotropic bridge deck plates on the two side surfaces.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An access vehicle for attaching to a main girder of a bridge in a movable manner by suspending a crane for maintenance, comprising:

a primary truss configured to provide a work platform for operator walk-up and maintenance equipment storage, the primary truss being an inverted trapezoidal truss beam structure;

at least two clamp assemblies for connecting the main truss to the main beam and allowing the main truss to move along the main beam, the clamp assemblies including a lattice and a running wheel set, the main truss being moved by the lattice driven by the running wheel set;

the movable lifting platform runs through a steel grating laid above the inverted trapezoidal truss girder structure, the lifting platform is arranged between the two clamping components, and the lifting platform can drive the main truss to selectively ascend or descend relative to the main girder;

a rail clamp coupled to the lattice truss and capable of selectively clamping and releasing the main beam, the rail clamp and the running wheel set being capable of operating independently.

2. The tool car of claim 1, wherein the main truss is arranged in sections, and different sections are connected through flanges.

3. The tool car of claim 1 wherein the main truss has guard rails and a floor, the guard rails being disposed on opposite side edges of the floor.

4. The inspection vehicle of claim 1 wherein the running gear sets are driven by active running motors.

5. The inspection vehicle of claim 4 wherein the running gear sets are driven by sprockets that mate with zippers.

6. The inspection vehicle of claim 5 wherein the sprockets and the drive travel motor are selectively switched by a selector and only one is active at a time.

7. The inspection vehicle of claim 1, wherein the running wheel sets are engaged by rail h-beams, the running wheel sets are in rolling contact with the rail h-beams by rollers, and the rail h-beams are fixed to the main beams.

8. The inspection vehicle of claim 7 further comprising a stop block configured to limit the travel wheel set from moving out of range, the stop block being secured to an end of the rail i-beam.

9. The inspection vehicle of claim 1, further comprising an inspection table fixed to the main truss, wherein the inspection table comprises a lifting frame and a protection frame for an operator to take, one end of the lifting frame is combined with the main truss, and the other end of the lifting frame is connected with the protection frame.

10. An inspection system comprising a power supply device, an inspection vehicle as claimed in any one of claims 1 to 9, the power supply device being configured to supply power to the running wheels sets.