CN201753237U - Small electrical lifting device - Google Patents

Abstract

The utility model discloses a small electric lifting device, which comprises a chassis vehicle part and a lifting part, the chassis vehicle part comprises a chassis and wheels, and the lifting part comprises a boom and a lifting arm arranged at the front end of the boom. ring. Since the utility model uses a small chassis and a foldable boom to lift heavy objects in a small area, the volume and working radius can be effectively reduced, and the impact on nearby live equipment is small; Foldable hydraulic disc outriggers increase the contact area of the crane truck to the ground and increase the weight of the trolley when in use, and can be retracted into the chassis when not in use without occupying space; the boom is a foldable boom that takes up little space and can carry Capable.

Description

Small Electric Lifting Device

technical field

The utility model belongs to the technical field of electric lifting installation equipment, in particular to a small electric lifting device.

Background technique

Cranes are often used for lifting equipment in power station expansion or renovation projects. Ordinary cranes are large in size. The swing and lifting of the lifting arm in the live equipment area is limited by the geographical location of the site and the surrounding live equipment. It is very inconvenient to use and has safety concerns. , Sometimes the power outage range has to be expanded to meet the conditions of use. For example, when replacing a 110KV outdoor current transformer, the current transformer is generally located behind the switch. The lifting height is affected by the passing line above, and the swing angle is limited by the switch; for another example, when replacing the 110KV bus PT, its installation position or the crane cannot reach it, or the lifting height is affected by the live bus above; there are many similar situations, such as replacing or installing In the work of outdoor 110KV A (side) switch, 35KV outdoor switch, 110KV line PT, etc., there are cases where the lifting equipment is limited by site conditions and the scope of power outages is enlarged, and the lifting equipment cannot even be used. Ordinary forklifts have the problems of insufficient lifting height and heavy weight, which is inconvenient for transportation. These tasks are very common in substation maintenance or installation and expansion projects. There are similar small-scale lifting equipment at home and abroad, such as the "mechanical spider" produced in Japan, which is small in size, and the maximum lifting weight, operating radius, and lifting height can meet the requirements. However, one of them is expensive, and the other is also a lifting method, and the lifting height is severely limited in the electrified area. Other products also adopt the lifting method, and their volume is relatively large, which is not suitable for on-site use in substations. So far, the small-scale power lifting device for substation engineering site that we are going to develop is still a blank in the domestic and foreign markets.

Utility model content

The utility model provides a small electric hoisting device which is small in size, flexible and convenient to use, and has little influence on charged bodies around the sky.

The utility model relates to a small electric lifting device, which includes a chassis part and a lifting part, the chassis part includes a chassis and wheels, and the lifting part includes a boom and a ring arranged at the front end of the boom.

The chassis is provided with embedded folding hydraulic disc outriggers.

The boom is a folding boom.

The ring at the front end of the boom is an openable ring.

A flexible cushioning flexible mechanism is arranged on the inner side of the circular ring.

A plurality of hooks are arranged on the outer circumference of the ring.

Since the utility model uses a small chassis and a foldable boom to lift heavy objects in a small area, the volume and working radius can be effectively reduced, and the impact on nearby live equipment is small; Foldable hydraulic disc outriggers increase the contact area of the crane to the ground and increase the self-weight of the trolley when in use, and can be retracted into the chassis when not in use without occupying space; the boom is a foldable boom that takes up little space and can carry ability. The front end of the upper arm of the lifting device needs to be designed with an open and closed ring, which is convenient for taking and placing heavy objects. The inner wall of the ring can be lined with flexible cushioning mechanisms such as wooden strips or rubber pads, which can ensure that heavy objects are effectively avoided during operation. Collision with the ring, which can also play a role in preventing the equipment from tilting and tipping over.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a structural representation of the utility model.

Detailed ways

A small electric lifting device, which includes a chassis part and a lifting part, the chassis part includes a chassis 1 and wheels 2, and the lifting part includes a boom 4 and a circle arranged at the front end of the boom 4 Ring 5. The crane truck can lift heavy objects in a small area, the volume and working radius can be effectively reduced, and it has little impact on nearby live equipment

The chassis 1 is provided with an embedded folding hydraulic disc support leg 3, which increases the contact area of the lift truck to the ground and increases the self-weight of the trolley, and can be retracted into the chassis when not in use, without taking up space. When in use, the built-in foldable hydraulic disc outrigger 3 rotates 180 degrees, moves out from the girder, and extends to the outside of the wheel. The lower bottom surface of the supporting disc at the end of the outrigger contacts the ground. By adjusting the spiral vertical lifting rod, the The track or four wheels of the trolley are supported. In this way, not only can the load-bearing area of the chassis of the trolley be effectively increased, but also the level of the chassis of the trolley can be adjusted through the adjusting rod, and the self-weight of the trolley can also be increased simultaneously. After the work is finished, put away the support disc first, then rotate the outrigger 180 degrees, and retract it from the outside of the wheel to the inside of the girder.

The boom 4 is a folding boom, which takes up little space and has a large carrying capacity. The lifting device of the trolley adopts a "Z"-shaped hydraulic or electric lifting and folding structure. The most significant advantage of this structure is that it takes up little space and has a large carrying capacity. The "Z" shaped boom is horizontally fixed on the upper plane of the trolley chassis.

The ring at the front end of the boom 4 is an openable ring 5, which is convenient for taking and placing heavy objects.

The inner side of the circular ring 5 is provided with a flexible cushioning mechanism 6, which can ensure that the heavy objects can effectively avoid collision with the circular ring during operation.

A plurality of hooks are arranged on the outer circumference of the ring.

The small electric lifting device is mainly composed of two parts. The chassis vehicle is in the form of 4 wheels or crawlers, which can be driven by a small gasoline engine or hydraulic motor. The maximum speed does not exceed 20 km/h; the lifting part adopts double-arm hydraulic folding and lifting. . The design method of increasing the ground support area during lifting, or separating the counterweight from the device is adopted to reduce the transportation weight of the equipment. Hydraulic equipment and lifting equipment are mature in technology and various in type, which can be used as a reference. The difficulty lies in the way of miniaturization and use. The fixation between the ring and the front end of the upper arm is designed to be a rotatable structure to ensure that the ring always maintains a horizontal position at every angle of the boom movement, and an appropriate number of hooks are set on the outer circumference of the ring to facilitate disassembly or installation of equipment use.

Claims (6)

1. A small electric lifting device, which comprises a chassis part and a lifting part, is characterized in that: the chassis part comprises a chassis and wheels, and the lifting part comprises a boom and is arranged on the front end of the boom ring. 2. The small electric lifting device according to claim 1, characterized in that: said chassis is provided with embedded folding hydraulic disc outriggers. 3. The small electric lifting device according to claim 1, wherein the boom is a folding boom. 4. The small electric lifting device according to claim 1, wherein the ring at the front end of the boom is an openable and closable ring. 5. The small electric lifting device according to any one of claims 1-4, characterized in that: a flexible cushioning mechanism is provided on the inner side of the ring. 6. The small electric lifting device according to claim 5, wherein a plurality of hooks are arranged on the outer circumference of the ring. the

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