CN104876154A - Power equipment hoisting device for narrow space - Google Patents

Abstract

The invention discloses a hoisting device for power equipment used in a narrow space. The left and right double scissor lifting devices are respectively installed on the left and right bases to be lifted and lowered by the left and right hydraulic cylinders. The tops of the left and right double scissor lifting devices are Install the beam on which the hook for lifting the transformer bell jar is installed; install a displacement sensor on the beam to detect whether the lifting height of the left and right double scissor lifting devices is consistent; the displacement sensor is connected with the control system; the beam includes the left and right vertical rods and two front and rear cross bars, the left and right groups of longitudinal bars are composed of two longitudinal bars respectively, and each longitudinal bar is fixedly connected with the top of a scissor lifting part of the double scissor lifting device; Left and right two groups of longitudinal rods are fixedly connected. The transformer lifting device of the present invention adopts a double scissors type gantry structure, the maximum lifting height can reach 8 meters, and the maximum lifting weight can reach 10 tons.

Description

Hoisting device for power equipment in narrow space

technical field

The invention relates to a lifting device for a transformer bell jar.

Background technique

In the prior art, the lifting of the indoor transformer bell jar generally adopts ordinary lifting facilities, and the building structure needs to be destroyed during the construction to operate, and the skills of the operators are greatly affected, and the working performance is not ideal, which needs further improvement.

Contents of the invention

The object of the present invention is to provide a hoisting device for electrical equipment in a narrow space with reasonable structure and good working performance.

Technical solution of the present invention is:

A hoisting device for power equipment in a narrow space, characterized in that it includes left and right bases, and left and right double-scissor lifting devices are respectively installed on the left and right bases to be lifted and lowered by left and right hydraulic cylinders. The top of the scissor lift device is equipped with a beam on which a hook for lifting the transformer bell jar is installed; a displacement sensor is installed on the beam to detect whether the lifting height of the left and right double scissor lift devices is consistent; the displacement sensor is connected with the control system, and the control system It is connected with the synchronous control device that controls the synchronous movement of the left and right hydraulic cylinders; the double scissors lifting device is composed of two scissors lifting parts, each scissors lifting part is composed of multiple scissors units, and each scissors unit is composed of two scissors It is composed of two scissor bars connected by a central pin shaft, and a circle of disc stop pin sockets matching with the disc stop pin is arranged on the outer periphery of the connection part of the two scissor bars;

The base includes a support frame, on which a hydraulic support device is installed, and four hydraulic cylinders of the hydraulic support device work together, and a mobile device is installed at the bottom of the support frame; in the working state, the telescopic rod of the hydraulic cylinder is propped up and supported on the ground, and the mobile device is not in contact with the ground. When it is in contact with the ground, the hydraulic cylinder bears all the load; when it needs to move, the telescopic rod of the hydraulic cylinder is retracted, and the mobile device is in contact with the ground, and the hydraulic cylinder does not directly contact the ground, so that the whole lifting device can move indoors in a small range.

The transformer lifting device of the present invention adopts a double scissors type gantry structure, the maximum lifting height can reach 8 meters, and the maximum lifting weight can reach 12 tons. The device is designed as a combined modular structure, and the lifting adopts hydraulic drive technology. Each component of the device (such as the scissor bar lifting component and the beam) is a modular structure, which can be assembled according to actual needs to achieve different heights and ranges of lifting, which is convenient for task operations in indoor spaces. In addition, the lifting device is equipped with different lifting tools, such as steel ropes, canvas belts, etc., to meet the lifting requirements of different objects.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

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

Figure 2 is a schematic diagram of the working principle of the control system.

Fig. 3 is a schematic diagram of the structure of the scissor unit.

Detailed ways

A hoisting device for electrical equipment in a narrow space, comprising left and right bases 1, 2, left and right double-scissor lifting devices 3, 4 respectively installed on the left and right bases to be lifted and lowered by left and right hydraulic cylinders, left, right The top of the right double-scissor lifting device is equipped with a crossbeam 5, and the hook for lifting the transformer bell housing is installed on the crossbeam; a displacement sensor 6 for detecting whether the lifting height of the left and right double-scissor lifting devices is consistent is installed on the crossbeam; the displacement sensor and the control module 7 is connected, the main frame 8 of the control module is connected with the synchronous control device 13 that controls the synchronous movement of the left and right hydraulic cylinders 11 and 12;

When working, the host computer of the control system issues instructions, the left and right hydraulic cylinders work, and the left and right hydraulic cylinders push the left and right double scissor lifting devices to drive the beam up, and the beam lifts the transformer bell jar through the hook; the displacement sensor is used Check whether the lifting heights of the left and right double scissor lifting devices on both sides of the beam are consistent, and give real-time feedback. If there is an error, it will be adjusted through the control system to achieve synchronous operation of the lifting heights on both sides to ensure that the objects being lifted during the lifting process balance.

The base includes a support frame, on which a hydraulic support device 9 is mounted, and four hydraulic cylinders of the hydraulic support device work together, and a mobile device 10 is installed at the bottom of the support frame; No contact with the ground, the hydraulic cylinder bears all the load; when it needs to move, the telescopic rod of the hydraulic cylinder retracts, the mobile device is in contact with the ground, the hydraulic cylinder does not directly contact the ground, and the whole lifting device can move indoors in a small range. The control of the coordinated action hydraulic module 14 is realized by the host computer 8 of the control system, thereby completing the control of the four support hydraulic cylinders at the bottom.

The double scissor lifting device, considering the indoor use, needs manpower to move in and out. The device is composed of a number of scissor bars that can be moved by a single person.

The double scissor lifting device is composed of two scissor lifting parts, each scissor lifting part is composed of a plurality of scissor units 15, and each scissor unit is composed of two scissor bars connected by a central pin shaft, A circle of disc stop pin sockets 17 cooperating with the disc stop pin 16 is arranged on the outer periphery of the connecting parts of the two scissor bars. When the hoisting device of the bell jar is in the process of rising or falling, the scissor unit and the stop pin of the disc are in a state of separation. At this time, the two scissor bars of the scissor unit can rotate relative to each other, so as to realize the lifting of the lifting device; when it is required to lift When the device is kept at a certain height, insert the disc stop pin into the corresponding hole of the scissor unit, then the two scissor bars cannot move relative to each other, and the lifting device will remain at a certain height.

Claims (1)

1. A hoisting device for power equipment in a narrow space, characterized in that: it includes left and right bases, and the left and right double scissor lifting devices are respectively installed on the left and right bases to promote lifting by left and right hydraulic cylinders. The top of the right double-scissor lifting device is equipped with a crossbeam, and the hook for lifting the transformer hanging bell is installed on the crossbeam; a displacement sensor is installed on the crossbeam to detect whether the lifting height of the left and right double-scissor lifting devices is consistent; the displacement sensor is connected with the control system, The control system is connected with the synchronous control device that controls the synchronous movement of the left and right hydraulic cylinders; the double scissors lifting device is composed of two scissors lifting parts, each scissors lifting part is composed of multiple scissors units, and each scissors unit It consists of two scissor bars connected by a central pin shaft, and a ring of disc stop pin sockets that cooperate with the disc stop pin is arranged on the outer periphery of the connection part of the two scissor bars; The base includes a support frame, on which a hydraulic support device is installed, and four hydraulic cylinders of the hydraulic support device work together, and a mobile device is installed at the bottom of the support frame; in the working state, the telescopic rod of the hydraulic cylinder is propped up and supported on the ground, and the mobile device is not in contact with the ground. When it is in contact with the ground, the hydraulic cylinder bears all the load; when it needs to move, the telescopic rod of the hydraulic cylinder is retracted, and the mobile device is in contact with the ground, and the hydraulic cylinder is not in direct contact with the ground, so that the entire lifting device can move in a small indoor range; When working, the host computer of the control system issues instructions, the left and right hydraulic cylinders work, and the left and right hydraulic cylinders push the left and right double scissor lifting devices to drive the beam up, and the beam lifts the transformer bell jar through the hook; the displacement sensor is used Check whether the lifting heights of the left and right double scissor lifting devices on both sides of the beam are consistent, and give real-time feedback. If there is an error, it will be adjusted through the control system to achieve synchronous operation of the lifting heights on both sides to ensure that the objects being lifted during the lifting process balance.