CN210790858U

CN210790858U - Servomotor overhauls rack device with jack-up function

Info

Publication number: CN210790858U
Application number: CN201920410417.3U
Authority: CN
Inventors: 方小峰; 骆祖春; 王志松; 曹政; 窦建业; 崔添棋; 秦专; 李战争; 温森特
Original assignee: Jiangsu Nuclear Power Corp
Current assignee: Jiangsu Nuclear Power Corp
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-06-19
Anticipated expiration: 2029-03-28

Abstract

The utility model belongs to a mechanical equipment overhauls in technical field, concretely relates to servomotor overhauls rack device with jack-up function. In the utility model, the detachable fence is arranged around the top of the channel steel frame platform through the slots, the mechanical cantilever crane stand is arranged at the central position of the channel steel frame platform through the flanges, the flanges are fixed through nuts and bolts, and the four lifting lugs are uniformly welded on the mechanical cantilever crane stand; the mechanical cantilever crane is arranged on a vertical column of the mechanical cantilever crane, a track is arranged inside the mechanical cantilever crane, the movable rail car is matched with the track, and the bottom of the mechanical cantilever crane is provided with a chain block; one side of the channel steel frame platform is provided with a movable step; the balance adjusting screw can adjust the balance of the maintenance rack. The utility model discloses can solve great and heavy mechanical equipment and overhaul the platform problem, make things convenient for personnel to overhaul, improve the industrial safety level to ensure effectively going on of maintenance work.

Description

Servomotor overhauls rack device with jack-up function

Technical Field

The utility model belongs to a mechanical equipment overhauls in technical field, concretely relates to servomotor overhauls rack device with jack-up function.

Background

In two K-1000-60/3000 type turbines in one stage of engineering of a Tianwan nuclear power station, a high-low pressure valve, a reheat steam valve and a high-pressure cylinder discharge valve of the turbine are provided with 21 servomotor machines in total, and when the servomotor machines are disassembled and overhauled, all the servomotor parts need to be disassembled, and the work of inspection, cleaning, measurement, spare part replacement, reinstallation and the like is carried out.

Before the servomotor is disassembled and overhauled, the servomotor needs to be hung to a specified overhauling area for overhauling, the servomotor is placed on a temporary prepared sleeper, and scaffolds are temporarily erected around for equipment disassembly overhauling work, a large amount of manpower and material resources are consumed in the overhauling mode, so that the preparation work in the early period of disassembly and overhauling occupies half of the total overhauling time, the original tense overhaul period is shortened, and the quality of overhauling work cannot be guaranteed to a certain extent. In addition, sleepers need to be piled up and placed, and the sleepers are different in size, so that the oil-powered machine has a dumping risk; the scaffold which is temporarily erected has the advantages of simple structure, time and labor consumption, uneven height of the erected platform springboard, askew inclined hanging caused by the fact that the chain block cannot be hung over the servomotor, no gap exists when the scaffold cannot be erected, huge potential safety hazards are brought to personnel who overhaul the scaffold at the upper part, certain difficulty is brought to overhaul work of the servomotor, hidden dangers are buried in damage to equipment, industrial safety requirements cannot be met, and therefore the scaffold has certain limitation and cannot meet requirements of field overhaul of the servomotor.

Disclosure of Invention

The utility model provides a technical problem: the utility model provides a servomotor overhauls rack device with jack-up function can solve great and heavy mechanical equipment and overhaul the platform problem, makes things convenient for personnel to overhaul, improves industry safety level to ensure effectively going on of maintenance work.

The utility model adopts the technical proposal that:

a servomotor overhaul rack device with a hoisting function comprises a channel steel frame platform, a detachable rail, lifting lugs, a mechanical cantilever crane upright post, a mechanical cantilever crane, a movable rail car, a chain block, movable steps, balance adjusting screws, slots, nuts and bolts, wherein the detachable rail is installed around the top of the channel steel frame platform through the slots; the mechanical cantilever crane is arranged on a vertical column of the mechanical cantilever crane, a track is arranged inside the mechanical cantilever crane, the movable rail car is matched with the track, and the bottom of the mechanical cantilever crane is provided with a chain block; one side of the channel steel frame platform is provided with a movable step; the balance adjusting screw can adjust the balance of the maintenance rack.

And the channel steel frame platform is used for drilling a first hole and a second hole on the platform according to the bottom structure of the equipment.

And manufacturing a patterned aluminum plate according to the second opening.

Welding a flange at the lower part of the platform on a channel steel frame platform; welding the rib plate I on two sides of the flange below the platform; and welding the second rib plate below the right center of the first rib plate.

The utility model has the advantages that:

(1) the utility model provides a servomotor overhaul rack device with hoisting function, which is not limited by on-site overhaul conditions, is simple and easy to use, is convenient to use, and is safer and more efficient compared with the traditional method of erecting a scaffold for mechanical equipment disassembly and installation;

(2) the utility model takes the mechanical cantilever crane upright post as the center, can rotate 360 degrees, the movable rail car can move on the mechanical cantilever crane track, can realize the free and flexible movement of X, Y, Z in three directions, and is convenient for the disassembly and the installation of equipment at any angle, thereby saving time and labor;

(3) the utility model is provided with the protective fence around the platform of the rack, thus greatly ensuring the falling risk of the maintainers;

(4) the utility model discloses shortened the on-the-spot maintainer and carried out the used time of mechanical equipment maintenance, greatly improved maintenance efficiency to the overhaul time limit for a project of overhaul of the equipments has been saved.

Drawings

Fig. 1 is a maintenance rack device of a servomotor with a lifting function provided by the utility model;

fig. 2 is a top view of a channel steel frame platform of a servomotor overhaul stand with a hoisting function provided by the utility model;

FIG. 3 is a side view of a channel steel frame platform of a servomotor overhaul stand with a hoisting function provided by the utility model;

fig. 4 is the utility model provides a pair of servomotor overhauls rack channel-section steel frame platform decorative pattern aluminum plate with jack-up function.

In the figure: 1-channel steel frame platform, 2-detachable rail, 3-lifting lug, 4-mechanical cantilever crane upright post, 5-mechanical cantilever crane, 6-movable rail car, 7-chain block, 8-movable step, 9-balance adjusting screw, 10-slot, 11-door, 12-rib plate I, 13-rib plate II, 14-hole I, 15-hole II, 16-patterned aluminum plate, 17-flange, 18-nut and 19-bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the utility model provides a servomotor overhaul rack device with hoisting function, including channel-section steel frame platform 1, detachable rail 2, lug 3, mechanical cantilever crane stand 4, mechanical cantilever crane 5, movable railcar 6, chain block 7, movable step 8, balance adjusting screw 9, slot 10, nut 18, bolt 19, detachable rail 2 is installed around the top of channel-section steel frame platform 1 through slot 10, mechanical cantilever crane stand 4 is installed at the central point of channel-section steel frame platform 1 through flange 17, fix with bolt 19 through nut 18 between the flange, four lugs 3 equipartition weld on mechanical cantilever crane stand 4; the mechanical cantilever crane 5 is arranged on the mechanical cantilever crane upright post 4, a track is arranged inside the mechanical cantilever crane 5, the movable rail car 6 is matched with the track, and the bottom of the movable rail car is provided with a chain block 7; one side of the channel steel frame platform 1 is provided with a movable step 8; the balance adjusting screw 9 can adjust the balance of the maintenance rack.

As shown in fig. 2, 3 and 4, a first hole 14 and a second hole 15 are formed in the channel steel frame platform according to the bottom structure of the equipment; manufacturing a patterned aluminum plate 16 according to the second opening 15; welding a platform lower flange 17 on a channel steel frame platform 1; welding the rib plates I12 on two sides of the flange 17 below the platform; and welding the second rib plate 13 below the right center of the first rib plate 12.

The mechanical cantilever crane is hoisted to the channel steel frame platform through the four lifting lugs, the cantilever crane base flange is in bolted connection with the flange on the upper portion of the channel steel frame platform, and the cantilever crane can move in the Y direction at the moment.

Inserting the detachable fence into the slots around the steel frame platform to avoid the risk of falling of personnel; one end of the door is connected with one end of the detachable fence through a hinge; the movable steps are placed at the entrance of the platform door of the channel steel frame, so that people can conveniently enter and exit.

Placing the movable rail car on a mechanical cantilever crane rail, wherein the rail car can slide along the rail at the moment, namely moving in the X direction;

the chain block is hung on a hanging rod of the movable rail car, and a person can operate the chain block to carry out hoisting operation on the equipment, namely the equipment moves in the Z direction.

During operation, a maintainer lifts the servomotor to the channel steel frame platform 1, disintegrates the equipment according to an overhaul program, lifts the equipment part through the chain block 6, and lifts the part to an overhaul area for overhaul and cleaning through the rotation function of the cantilever crane 4 and the movement function of the movable rail car 5; after the maintenance and the cleaning are finished, the part is lifted to the upper part of the equipment through the cantilever crane 4, the movable rail car 5 and the chain block 6, and then the part is reloaded.

The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. The present invention can adopt the prior art for the content which is not described in detail in the present invention.

Claims

1. The utility model provides a servomotor overhauls rack device with jack-up function which characterized in that: the steel channel frame platform comprises a steel channel frame platform (1), detachable fences (2), lifting lugs (3), a mechanical cantilever crane upright post (4), a mechanical cantilever crane (5), a movable rail car (6), a chain block (7), a movable step (8), a balance adjusting screw (9), a slot (10), nuts (18) and bolts (19), wherein the detachable fences (2) are installed on the periphery of the top of the steel channel frame platform (1) through the slot (10), the mechanical cantilever crane upright post (4) is installed at the central position of the steel channel frame platform (1) through a flange (17), the flanges are fixed with the bolts (19) through the nuts (18), and the four lifting lugs (3) are uniformly welded on the mechanical cantilever crane upright post (4); the mechanical cantilever crane (5) is arranged on a mechanical cantilever crane upright post (4), a track is arranged inside the mechanical cantilever crane (5), the movable rail car (6) is matched with the track, and the bottom of the movable rail car is provided with a chain block (7); one side of the channel steel frame platform (1) is provided with a movable step (8); the balance adjusting screw (9) can adjust the balance of the maintenance rack.

2. The servomotor maintenance rack device with the hoisting function according to claim 1, wherein: the channel steel frame platform (1) is provided with a first hole (14) and a second hole (15) according to the bottom structure of the equipment.

3. The servomotor maintenance rack device with the hoisting function according to claim 2, wherein: and manufacturing a patterned aluminum plate (16) according to the second opening (15).

4. The servomotor maintenance rack device with the hoisting function as set forth in claim 3, wherein: welding a platform lower flange (17) on a channel steel frame platform (1); welding the rib plates I (12) on two sides of the flange (17) below the platform; and welding the second rib plate (13) below the right center of the first rib plate (12).