CN204689546U - The large-scale bell jar planer-type that hangs moves lifting machine - Google Patents

Abstract

The utility model discloses a large-scale bell jar gantry type mobile hoist. Left and right double scissor lifting devices are respectively installed on the left and right bases, which are pushed up and down by left and right pneumatic cylinders. The left and right double scissors lift A crossbeam is installed on the top of the device, and a 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 crossbeam includes left and right A group of longitudinal rods and two front and rear horizontal rods, the left and right groups of longitudinal rods are composed of two longitudinal rods respectively, and each longitudinal rod is fixedly connected with the top of a scissor lifting part of the double scissor lifting device; four mutually parallel The cross bar is 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

Large bell jar gantry mobile hoist

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 large bell jar gantry type mobile hoist with reasonable structure and good working performance.

The technical solution of the utility model is:

A large bell jar gantry-type mobile hoist is 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 pneumatic 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 cylinders; the double scissor lifting device is composed of two scissor lifting parts, each scissor lifting part is composed of multiple scissor units, and each scissor unit is composed of 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 pins is arranged on the outer periphery of the connection part of the two scissor bars; the beam includes left and right longitudinal bars and two front and rear A horizontal bar, the left and right groups of 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 connected with the left and right Two groups of longitudinal rods are fixedly connected.

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 lift adopts pneumatic 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 large-scale bell jar gantry type mobile hoist, 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 pneumatic cylinders, The top of the left and right double scissor lifting devices is equipped with a crossbeam 5, on which a hook for lifting the transformer hanging bell is installed; The control module 7 is connected, 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 cylinders 11 and 12;

When working, the host computer of the control system issues instructions, the left and right pneumatic cylinders work, and the left and right cylinders push the left and right double scissor lifting devices to drive the beam up, and the beam lifts the transformer hanging bell through the hook; Detect 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, ensuring the lifting of the object during the lifting process. balance.

The base includes a support frame, on which an air pressure support device 9 is installed, and four pneumatic cylinders of the air pressure support device work together, and the bottom of the support frame is equipped with a moving device 10; No contact with the ground, the pneumatic cylinder bears all the load; when it needs to move, the telescopic rod of the pneumatic cylinder retracts, the mobile device contacts the ground, the pneumatic cylinder does not directly contact the ground, and the whole lifting device can move indoors in a small range. The host 8 of the control system realizes the control of the coordinated action air pressure module 14, thereby completing the control of the four supporting air 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 large-scale bell jar gantry type mobile hoist is 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 air 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 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 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 There are two front and rear cross bars, and 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; four parallel transverse bars are connected with the left , The right two groups of longitudinal rods are fixedly connected.