CN104868390A - Working platform for maintaining disconnecting switch - Google Patents

Abstract

The invention discloses a working platform for maintaining a disconnecting switch. The working platform comprises a working platform part, a shears-fork type expansion mechanism and a base part, wherein the working platform part comprises a working platform body (3), an extending platform (13), an operation panel (12), a guardrail (18), a safety belt suspension beam (1), a maintaining working power supply (2) and a tool and instrument fixing box (19); the shears-fork type expansion mechanism comprises an inner group of multi-stage X-type shears-fork arms (14), an outer group of multi-stage X-type shears-fork arms (14), a hydraulic cylinder bracket (15), a hydraulic cylinder (6) and the like; the base part comprises a chassis (9), steering wheels (11) and crawling ladders (8). The working platform is economic, low in cost, convenient to transport and store, attractive in appearance, small in size, light in weight, balanced in lifting, safe, reliable, and strong in on-site practicability, can exert a lifting ability in an extremely small space, and is suitable for mounting and maintaining working requirements of small-sized equipment in a transformer substation.

Description

A working platform for isolating switch maintenance

Technical field:

The invention relates to an isolating switch inspection and maintenance work platform, which belongs to the technical field of inspection and maintenance of power transformation equipment such as isolating switches in power system substations.

Background technique:

Working on the isolating switch body is a climbing operation, and the safety belt must be fastened. In case of hoisting or dismantling of the isolating switch for maintenance, the maintenance personnel must bind the safety belt on the chassis of the isolating switch and change the binding point as the work site shifts, which will result in prolonged maintenance hours and increased work risks.

The existing work platform is basically vehicle-mounted, with large volume, heavy weight, and large operating radius. Due to the large number of equipment in the substation, the incoming and outgoing lines and equipment leads are criss-crossed, the working space is narrow, and it is easy to touch during hoisting and maintenance operations. Contact with electrical equipment; using the existing work platform to work often leads to the expansion of the power outage range, the extension of the power outage time, and the increase in operating risks; not only that, such equipment is expensive, and the maintenance cost is high, which will increase the work virtually. The cost is not suitable for the maintenance and installation of the current substation isolating switch.

Invention content:

The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a low economic cost, convenient transportation and storage, beautiful appearance, small size, light weight, balanced lifting, safe and reliable, strong on-site practicability, and can be installed in a very small It is a kind of isolating switch inspection and maintenance work platform that is suitable for the installation and maintenance of small equipment in substations by exerting the lifting capacity in the space.

The purpose of the present invention can be achieved through the following measures: a working platform for isolating switch maintenance, characterized in that it includes a working platform part, a scissor type extension mechanism, and a base part, wherein the working platform part includes a working platform, and one side of the working platform is connected Extended platform, the working platform is connected with guardrails, safety belt suspension beams, maintenance work power supply, operation panel, tool fixing box; scissor-type extension mechanism includes two sets of inner and outer multi-stage X-type scissor arms, multi-stage X-type scissor arms The upper end of the multi-stage X-type scissor arm is connected to the working platform through a slider, and the lower end of the multi-stage X-type scissor arm is connected to the chassis of the base part through a hinge support. The corresponding two hinge points on the multi-stage X-type scissor arm are respectively connected to two hydraulic cylinders. One end of the bracket, the other end of the two hydraulic cylinder brackets are connected to the hydraulic cylinder, and the hydraulic cylinder is connected to the hydraulic system; the base part includes the chassis, the chassis is equipped with a hydraulic system, the lower end of the chassis is provided with steering wheels, and the side of the chassis is provided with a ladder.

Compared with the prior art, the present invention can produce the following positive effects: the present invention is an aerial work platform integrating the functions of installation, high-altitude maintenance, ladder, hoisting and heavy object handling, adapting to the special environment of the substation site and overcoming existing equipment related defects, low economic cost, convenient handling and storage, easy operation, and strong on-site practicability. The lifting system of the isolating switch maintenance work platform of the present invention adopts a scissor-type mechanical structure, vertical lifting, heavy load, and good stability; four-wheel It is easy to move and carry out. It has the advantages of beautiful appearance, small size, light weight, balanced lifting, safety and reliability, etc. It can exert the lifting and lifting capacity in a very small space, and is suitable for the installation and maintenance of small equipment in substations. The present invention has:

(1) The system of the present invention is stable, the rising and falling speeds are even, the staff in the platform are safe and comfortable, and the working platform is guaranteed to be stable and reliable.

(2) It has an extended platform, which can increase the scope of work, and the steel plate at the bottom of the platform is firm, with anti-skid and self-drainage functions.

(3) The working platform has a built-in power supply for inspection and maintenance, a fixed box for tools and equipment, and a safety belt suspension beam to ensure the safety of personnel on the working platform.

(4) The platform structure is stable, the operation is simple, safe and efficient.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

The specific embodiment: the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing:

Embodiment: A working platform for overhauling a disconnector (see Figure 1), which consists of three parts: a working platform, a scissor-type extension mechanism, and a base.

1. Working platform part:

The main function of the work platform part is to carry operators and construction equipment and equipment, which includes work platform 3, extension platform 13, operation panel 12, guardrail 18, safety belt suspension beam 1, maintenance work power supply 2, tool fixing box 19. One side of the working platform 3 is connected with an extension platform 13, and the working platform 3 is connected with a guardrail 18, a safety belt suspension beam 1, a working power supply 2 for maintenance, a tool fixing box 19, and an operation panel 12.

2. Scissor-type extension mechanism: The extension mechanism is used to realize the lifting of the platform, which includes two sets of inner and outer multi-stage X-shaped scissor arms 14, hinge support 13, pin shaft 5, lifting hydraulic cylinder 6, hydraulic cylinder bracket 15 and Slider 4 etc. The inner and outer two sets of multi-stage X-shaped scissor arms 14 are connected by a pin shaft 5, the upper end of the multi-stage X-shaped scissor arm 14 is connected with the working platform 3 through the slider 4, and the lower end of the multi-stage X-shaped scissor arm 14 is connected by The hinge support 13 is fixed on the chassis 9 of the base part, and the corresponding two hinge points 7 on the multi-stage X-shaped scissor arm 14 are respectively connected to one end of the two hydraulic cylinder supports 15, and the other ends of the two hydraulic cylinder supports 15 are connected to the hydraulic pressure Cylinder 6, hydraulic cylinder 6 is connected to the hydraulic system 10, and the hydraulic system 10 is connected to the operation panel 12, and the operation of the hydraulic system is realized by operating the buttons on the operation panel 12; when working, the extension of the hydraulic cylinder increases the angle between adjacent scissor arms , to achieve the rise of the working platform. The proportional control of the telescoping speed of the hydraulic cylinder is realized by adjusting the hydraulic oil flow in the lifting hydraulic cylinder through the hydraulic system.

3. Base part:

Base part comprises chassis 9, motor and hydraulic system 10, steering wheel 11, ladder 8, is provided with hydraulic system 10 in chassis 9, and the lower end of chassis 9 is provided with steering wheel 11, and the side of chassis 9 is provided with ladder 8.

The base part is the support system of the platform, which has both walking and steering functions. Among them, the motor and hydraulic system are the power system of the platform, which provides power for the lifting of the working platform; The mechanical part plays a supporting role, and the two work together to realize the operating function of the platform.

When the lifting platform is working, the hydraulic system acts to make the piston of the hydraulic cylinder move, and the hydraulic cylinder expands and contracts, and then pushes the scissor arm to expand and fold to realize the lifting or lowering of the working platform.

Claims (1)

1. A working platform for isolating switch maintenance, characterized in that it includes a working platform part, a scissor-type extension mechanism, and a base part, wherein the working platform part includes a working platform (3), and one side of the working platform (3) is connected to an extension platform ( 17), the working platform (3) is connected to the guardrail (18), the safety belt suspension beam (1), the maintenance work power supply (2), the operation panel (12), the tool fixing box (19); the scissor type extension mechanism includes Two sets of multi-stage X-shaped scissor arms (14) inside and outside, the upper end of the multi-stage X-shaped scissor arm (14) is connected with the working platform (3) through the slider (4), and the multi-stage X-shaped scissor arm (14) The lower end of the lower end is connected to the chassis (9) of the base part through the hinge support (13), and the corresponding two hinge points (7) on the multi-stage X-shaped scissor arm (14) are respectively connected to the two hydraulic cylinder supports (15) At one end, two hydraulic cylinder brackets (15) are connected to the hydraulic cylinder (6) at the other end, and the hydraulic cylinder (6) is connected to the hydraulic system (10); the base part includes the chassis (9), and the chassis (9) is equipped with a hydraulic system (10 ), the lower end of the chassis (9) is provided with a steering wheel (11), and the side of the chassis (9) is provided with a ladder (8).