CN213738238U

CN213738238U - Device for overhauling lifting appliance by stretching and retracting rail

Info

Publication number: CN213738238U
Application number: CN202022236594.XU
Authority: CN
Inventors: 张波; 赵腾; 孟娜; 刘蒙; 符姣姣
Original assignee: China National Heavy Machinery Research Institute Co Ltd
Current assignee: China National Heavy Machinery Research Institute Co Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-07-20
Anticipated expiration: 2030-10-10

Abstract

The utility model provides a device for overhauling a lifting appliance by adopting rail expansion, which comprises a steel structure, and further comprises a bearing beam, a plurality of fixed pulleys, a sliding rail beam and an electric hoist which are arranged on the upper part of the steel structure, wherein the fixed pulleys are all fixedly arranged on the bearing beam, the sliding rail beam is arranged below the bearing beam in parallel, and a roller of the fixed pulleys is in rolling connection with the sliding rail beam; the electric hoist is arranged at the lower end of the sliding track beam. The limiting plate prevents the sliding track beam from being greatly inclined, two stopping plates are respectively welded at the proper positions of the two ends of the sliding track beam, the sliding track beam is guaranteed not to be separated from the two pulleys, and meanwhile, the electric hoist roller is also guaranteed not to be separated from the sliding track beam. The device has the advantages of simple structure, convenient installation and low price, and can greatly reduce the labor intensity of maintainers, improve the working efficiency, ensure the safety of the maintainers and reduce the production cost.

Description

Device for overhauling lifting appliance by stretching and retracting rail

Technical Field

The utility model belongs to molten steel vacuum refining system's maintenance service equipment field, in particular to adopt flexible device of overhauing the hoist of track.

Background

When a vacuum main valve of a vacuum system and a core pipe assembly in a gas cooling dust remover or other equipment with larger volume and heavier weight are disassembled and replaced, and the equipment needs to be transported to the ground by a high-rise platform, since the equipment is usually located inside the platform, the shop crane hook is not accessible, and must be done using an electric block, in the steel-making workshop, the non-main steel structure is usually not allowed to extend out of the outer side of the platform due to safety consideration, so that the interference with a travelling crane steel wire rope is avoided, major accidents are avoided, therefore, the electric hoist rail cannot extend out of the platform, so that the old equipment detached from the high-rise platform is transferred to the ground, which seems to be very simple, the operation is very difficult, maintenance personnel can only complete the operation through manpower, the labor intensity of the maintenance personnel is high, the working efficiency is low, and even greater potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

In order to overcome the current when carrying out dismouting, change to bulky, heavy equipment, electric block track for overhaul of the equipments can not stretch out the platform, leads to being located the problem that the old equipment that high-rise platform was dismantled transports to ground unusual difficulty. The utility model provides an adopt flexible device that overhauls hoist of track, the utility model discloses can be fast convenient will be located the old equipment that high-rise platform dismantled and transport to ground, greatly reduced maintainer's intensity of labour improves work efficiency, and guarantee maintainer's safety makes the rhythm of concise production compact, reduction in production cost.

The utility model adopts the technical proposal that:

a device for overhauling a lifting appliance by adopting rail extension comprises a steel structure, and further comprises a bearing beam, a plurality of fixed pulleys, a sliding rail beam and an electric hoist which are arranged on the upper part of the steel structure, wherein the fixed pulleys are all fixedly arranged on the bearing beam, the sliding rail beam is arranged below the bearing beam in parallel, and a roller of each fixed pulley is in rolling connection with the sliding rail beam; the electric hoist is arranged at the lower end of the sliding track beam.

The sliding track beam is I-shaped steel.

The fixed pulleys are arranged in two sets, one set is positioned at the right end part of the bearing beam, and the other set is positioned at the left part; the top flange of the I-steel is inserted into the rollers of the two sets of fixed pulleys in sequence.

The electric hoist is arranged on the flange of the lower part of the I-shaped steel, the lifting height is determined according to the height of a platform where equipment to be lifted is located, and the electric hoist is controlled by wire control or remote control.

Fixed coaster on be equipped with the coaster backup pad, the coaster backup pad downwardly extending extends and stretches out the top flange of slip track roof beam, coaster backup pad both ends all are equipped with the limiting plate, coaster backup pad up end and spandrel girder lower surface between leave fixed steel bay.

And two ends of the sliding track beam are provided with stop plates.

The utility model has the advantages that:

this device respectively welds a limiting plate at coaster backup pad both ends, and this limiting plate welded position needs to guarantee to leave 3-5mm clearance between limiting plate tip and the slip track roof beam upper surface, can guarantee that the slip track roof beam can easily slide to both sides on two coasters, and the effect of this limiting plate prevents that the slip track roof beam from taking place big slope, respectively welds two locking plates at the suitable position in slip track roof beam both ends, guarantees that the slip track roof beam can not deviate from two coasters, also can guarantee simultaneously that the electric block gyro wheel can not deviate from the slip track roof beam. The device has the advantages of simple structure, convenient installation and low price, and can greatly reduce the labor intensity of maintainers, improve the working efficiency, ensure the safety of the maintainers and reduce the production cost.

The following will be further described with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a device using a rail telescopic service spreader in a standby state.

Fig. 2 is a state diagram of the sliding rail beam in the sliding operation.

Fig. 3 is a state diagram of the electric block moving to the end of the sliding track beam when in operation.

Figure 4 is a schematic side view of an apparatus for telescopic service of spreaders using rails.

Fig. 5 is a schematic view of a fixed head block installation.

In the figures, the reference numbers are: 1. a spandrel girder; 2. a fixed pulley; 3. a sliding track beam; 4. an electric hoist; 5. a vacuum main valve; 6. a pulley support plate; 7. a limiting plate; 8. a stopper plate; 9. and fixing the channel steel.

Detailed Description

Example 1:

in order to overcome the current when carrying out dismouting, change to bulky, heavy equipment, electric block track for overhaul of the equipments can not stretch out the platform, leads to being located the problem that the old equipment that high-rise platform was dismantled transports to ground unusual difficulty. The utility model provides an adopt flexible device of overhauing hoist of track as shown in fig. 1-5, the utility model discloses can be fast convenient will be located old equipment that high-rise platform dismantles and transport to ground, greatly reduced maintainer's intensity of labour improves work efficiency, and guarantee maintainer's safety makes the rhythm of concise production compact, reduction in production cost.

A device adopting a rail telescopic overhaul lifting appliance comprises a steel structure, and further comprises a bearing beam 1, a plurality of fixed pulleys 2, a sliding rail beam 3 and an electric hoist 4 which are arranged on the upper part of the steel structure, wherein the fixed pulleys 2 are all fixedly arranged on the bearing beam 1, the sliding rail beam 3 is arranged below the bearing beam 1 in parallel, and a roller of each fixed pulley 2 is in rolling connection with the sliding rail beam 3; the electric hoist 4 is arranged at the lower end of the sliding track beam 3.

The utility model discloses a use does:

when specific equipment needs to be overhauled and replaced, a bearing beam 1 is arranged in a steel structure above a vacuum main valve 5, the direction of the bearing beam 1 is required to be convenient for hoisting the equipment in and out, the installation position of the bearing beam needs to meet the reasonable direction of transporting the equipment to the outer side of a platform in a short distance, the length of the bearing beam 1 is determined according to the distance between the installation position of the equipment and the edge of the platform, then at least two sets of fixed pulleys 2 are installed at the position of the bearing beam 1, and the fixed pulleys 2 are selected according to the required weight of overhauling and replacing the specific equipment. And selecting a sliding track beam 3 with the required length, wherein the height of the sliding track beam 3 is required to meet the requirement that the fixed pulley 2 roller and the electric hoist 4 roller for hoisting specific equipment are spaced and cannot interfere, and the strength of the sliding track beam is required to meet the requirement of hoisting weight.

And finally, selecting an electric hoist with a proper hoisting weight to be installed on the lower flange of the sliding track beam 3, wherein the hoisting height can be determined according to the height of the platform where the equipment is located. The device simple structure, simple to operate, low price, but greatly reduced maintainer's intensity of labour improves work efficiency, ensures maintainer's safety, reduction in production cost.

As shown in fig. 1, 2, 3 and 4, the equipment to be disassembled and replaced is located on a high-rise platform, the electric hoist 4 hoists the disassembled old equipment, then the sliding track beam 3 slides along the fixed trolley 2 on the bearing beam 1, when the sliding track beam slides to the outermost end, the electric hoist 4 starts to work, the electric hoist 4 hoists the disassembled old equipment to a steel structure, then the steel structure is placed on the ground, and the old equipment is transported away by a forklift, a forklift or other transportation equipment. When new equipment needs to be installed, the operation is reversed, the electric hoist 4 lifts the new equipment to a high-rise platform to be placed, and then the new equipment is adjusted to the installation position through the sliding track beam 3 in a sliding mode to be installed subsequently.

The utility model discloses can be fast convenient will be located old equipment that high-rise platform dismantles and transport to ground, greatly reduced maintainer's intensity of labour improves work efficiency, and guarantee maintainer's safety makes the rhythm of concise production compact, reduction in production cost.

Example 2:

based on embodiment 1, in this embodiment, preferably, the sliding track beam 3 is an i-beam.

Preferably, the fixed pulleys 2 are provided with two sets, one set is positioned at the right end part of the bearing beam 1, and the other set is positioned at the left part; the top flange of the I-steel is inserted into the rollers of the two fixed pulleys 2 in sequence.

Preferably, the electric hoist 4 is installed on a flange of the lower part of the I-steel, the hoisting height is determined according to the height of a platform where equipment needing hoisting is located, and the electric hoist 4 is controlled by wire control or remote control.

Preferably, fixed coaster 2 on be equipped with coaster backup pad 6, coaster backup pad 6 downwardly extending extends and stretches out the upper limb of slip track roof beam 3, coaster backup pad 6 both ends all are equipped with limiting plate 7, coaster backup pad 6 up end and spandrel girder 1 lower surface between leave fixed steel bay 9.

Preferably, a gap of 3-5mm is left between the lower end of the limit plate 7 and the upper surface of the sliding track beam 3.

Preferably, both ends of the sliding track beam 3 are provided with stop plates 8.

As shown in fig. 5, in the device, the upper flange of the i-steel (the sliding track beam 3) is inserted into the rollers of two sets of fixed pulleys 2, two ends of a pulley support plate 6 are respectively welded with a limiting plate 7, the welding position of the limiting plate 7 needs to ensure that a gap of 3-5mm is reserved between the end part of the limiting plate 7 and the i-steel, the i-steel can be ensured to easily slide to two sides on the two pulleys, the limiting plate 7 is used for preventing the sliding track beam 3 from being greatly inclined, two stop plates 8 are respectively welded at two ends of the i-steel, the i-steel can be ensured not to be separated from the two fixed pulleys 2, and simultaneously, the rollers of the electric hoist 4 can also be ensured not to be separated from the i-steel. The device has the advantages of simple structure, convenient installation and low price, and can greatly reduce the labor intensity of maintainers, improve the working efficiency, ensure the safety of the maintainers and reduce the production cost.

The utility model discloses on well selection electric block 4 of a suitable weight of lifting by crane installed to the lower part edge of a wing of I-steel, it can be confirmed according to the height of equipment place platform to lift by crane the height, and 4 accessible drive-by-wire or remote control of this electric block. The device simple structure, simple to operate, low price, but greatly reduced maintainer's intensity of labour improves work efficiency, ensures maintainer's safety, reduction in production cost.

The above examples are merely illustrations of the present invention, and do not constitute limitations to the scope of the present invention, and all designs identical or similar to the present invention belong to the scope of the present invention. The device structure and the method steps not described in detail in the present invention are prior art, and no further explanation will be given in the present invention.

Claims

1. The utility model provides an adopt flexible device that overhauls hoist of track, includes the steel construction, its characterized in that: the steel structure is characterized by further comprising a bearing beam (1), a plurality of fixed pulleys (2), a sliding track beam (3) and an electric hoist (4) which are arranged on the upper portion of the steel structure, wherein the fixed pulleys (2) are all fixedly arranged on the bearing beam (1), the sliding track beam (3) is arranged below the bearing beam (1) in parallel, and rollers of the fixed pulleys (2) are in rolling connection with the sliding track beam (3); the electric hoist (4) is arranged at the lower end of the sliding track beam (3).

2. The device of claim 1, wherein the track extension and maintenance lifting tool comprises: the sliding track beam (3) is made of I-shaped steel.

3. A device for using a rail telescopic service spreader according to claim 1 or 2, wherein: the fixed pulleys (2) are arranged in two sets, one set is positioned at the right end part of the bearing beam (1), and the other set is positioned at the left part; the top flange of the I-steel is inserted into the rollers of the two sets of fixed pulleys (2) in sequence.

4. A device for using a rail telescopic service spreader according to claim 1 or 2, wherein: the electric hoist (4) is arranged on the flange of the lower part of the I-shaped steel, the lifting height is determined according to the height of a platform where equipment needing to be lifted is located, and the electric hoist (4) is controlled by wire control or remote control.

5. The device of claim 1, wherein the track extension and maintenance lifting tool comprises: fixed coaster (2) on be equipped with coaster backup pad (6), coaster backup pad (6) downwardly extending extends and stretches out the top flange of slip track roof beam (3), coaster backup pad (6) both ends all are equipped with limiting plate (7), coaster backup pad (6) up end and spandrel girder (1) lower surface between leave fixed steel groove (9).

6. The device of claim 1, wherein the track extension and maintenance lifting tool comprises: both ends of the sliding track beam (3) are provided with stop plates (8).