CN204689579U - The lifting appliance of indoor various voltage transformer grade gas-insulated switchgear device - Google Patents

Abstract

The utility model discloses a hoisting device for indoor gas insulated switchgears of various transformer grades. The 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 fork lifting device is equipped with a crossbeam, on which there is a hook for lifting the transformer hanging bell; 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 crossbeam includes the left 1, the right group of longitudinal rods and two front and rear horizontal rods, the left and right group of longitudinal rods are respectively composed of two longitudinal rods, and each longitudinal rod is fixedly connected with the top of a scissor lifting part of the double scissor lifting device; The parallel cross bars are fixedly connected with the left and right two groups of longitudinal bars. The transformer lifting device of the utility model 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

Lifting device for indoor gas insulated switchgear of various transformer grades

technical field

The utility model 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 purpose of the utility model is to provide a lifting device for indoor various transformer grade gas insulated switchgears with reasonable structure and good working performance.

The technical solution of the utility model is:

A lifting device for indoor gas insulated switchgear of various transformer grades, 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 left and right double scissor lifting devices 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 and the control system connection, 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, each scissors The fork unit is composed of two scissor bars connected by a central pin shaft, and a ring of disc stop pin sockets matching with the disc stop pins is arranged on the outer periphery of the connection part of the two scissor bars; the crossbeam includes left and right sets of longitudinal bars 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 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 utility model 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

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a schematic structural view of an embodiment of the utility model.

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 lifting device for indoor gas insulated switchgears of various transformer grades, including left and right bases 1, 2, and left and right double scissor lifting devices 3, which are lifted and lifted by left and right hydraulic cylinders respectively installed on the left and right bases 4. A crossbeam 5 is installed on the top of the left and right double scissor lifting devices, and a hook for lifting the transformer hanging bell is installed on the crossbeam; a displacement sensor 6 is installed on the crossbeam to detect whether the lifting height of the left and right double scissor lifting devices is consistent; The sensor is connected with the control module 7, and the main frame 8 of the control module is connected with the synchronous control device 13 which controls the synchronous movement of the left and right hydraulic cylinders 11, 12; The longitudinal bars are respectively composed of two longitudinal bars, and each longitudinal bar is fixedly connected with the top of a scissor lifting part of the double scissor lifting device; four mutually parallel transverse bars are fixedly connected with the left and right two groups of longitudinal bars.

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 of 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. the lifting appliance of an indoor various voltage transformer grade gas-insulated switchgear device, it is characterized in that: comprise left and right base, left and right base is installed respectively the left and right pair of scissor lifting device be elevated by left and right Hydraulic Cylinder, the top dress crossbeam of left and right pair of scissor lifting device, crossbeam is equipped with and promotes the suspension hook that voltage transformer hangs bell jar; On crossbeam, dress detects the whether consistent displacement pickup of left and right pair of scissor lifting device adjustable height; Displacement pickup is connected with control system, and the sync control device that control system is moved with control left and right hydraulic cylinder synchronous is connected; Described pair of scissor lifting device is made up of two scissors fork elevating parts, each scissors fork elevating part is made up of multiple scissor unit, each scissor unit is made up of the scissors rod that two are connected by central pin shaft, arranges the disk stop pin jack that a circle coordinates with disk stop pin two scissors rod connecting portion peripheries; Crossbeam comprises left and right group of vertical pole and two, front and back cross bar, and left and right group of vertical pole is made up of two vertical poles respectively, and every root vertical pole is fixedly connected with the top of a scissors fork elevating part of two scissor lifting device; Four cross bars be parallel to each other are fixedly connected with left and right two groups of vertical poles;

Base comprises bearer frame, and bearer frame fills hydraulic supporting device, and hydraulic supporting device four hydraulic actuating cylinder collaborative works, fill mobile device bottom bearer frame; During mode of operation, the expansion link of hydraulic actuating cylinder is propped up, supporting on the ground, mobile device not with earth surface, hydraulic actuating cylinder bears whole load; When needs are mobile, the expansion link of hydraulic actuating cylinder is retracted, and mobile device and earth surface, hydraulic actuating cylinder does not directly contact with ground, realizes the indoor movement among a small circle of whole lifting appliance.