CN216807973U - Nuclear-grade equipment overhaul lifting device - Google Patents

Abstract

The utility model belongs to a nuclear-grade pump overhauling technology, and particularly relates to a nuclear-grade equipment overhauling lifting device. Comprises a base, a lifting platform positioned above the base and a plurality of swing arms positioned between the base and the lifting platform; a jacking oil cylinder is arranged on the base and used for providing driving force for the swing arm above; the swing arms are provided with even numbers of heels, are arranged in a group of two-by-two in a crossed manner, and the crossed positions are hinged; the lower end of each group of swing arms is correspondingly hinged with the upper end of the upper group of swing arms; a driving rod of the jacking oil cylinder is connected with the lowermost group of swing arms; the upper ends of the swing arms in the uppermost group are connected with a lifting platform; the lower ends of the swing arms of the lowermost group are connected with the base. This device can assist some volumes great to nuclear level equipment overhaul in-process, and weight is heavier, and the higher spare part in position is dismantled and is installed, accomplishes the maintenance work to equipment.

Description

Nuclear-grade equipment overhaul lifting device

Technical Field

The utility model belongs to a nuclear-grade pump overhauling technology, and particularly relates to a nuclear-grade equipment overhauling lifting device.

Background

The nuclear power station has numerous devices, and in order to ensure the good state of the devices and the safe and stable operation of the unit, the numerous devices need to be disassembled to be overhauled.

In the maintenance of nuclear power station equipment, the large-scale nuclear-grade equipment has the particularity that the large-scale nuclear-grade equipment is large in size and heavy in weight, so that the maintenance difficulty is increased.

The maintenance work is limited by the structural characteristics of maintenance place and equipment, can't use some main equipment to assist and dismantle and install, and this has increased the work degree of difficulty of overhauing again undoubtedly.

In the maintenance process of this kind of equipment, carry out the dismantlement of the great, weight is heavier, the higher spare part in position and repack the during operation, often need rely on many people to join in marriage a force and lift spare part to corresponding position. The device not only needs more manpower input and has low working efficiency, but also has the potential safety hazard that the falling of parts hurts people.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a nuclear-grade equipment maintenance lifting device which can effectively solve the problem that parts with larger size, heavier weight and higher position are difficult to disassemble and assemble in the maintenance process of the nuclear-grade equipment.

The technical scheme of the utility model is as follows:

a nuclear-grade equipment maintenance lifting device comprises a base, a lifting platform positioned above the base, and a plurality of swing arms positioned between the base and the lifting platform;

the base is provided with a jacking oil cylinder which is used for providing driving force for the swing arm above;

the swing arms are provided with even numbers of heels, are arranged in a group of pairs in a crossed manner, and are hinged at the crossed positions;

the lower end of each group of swing arms is correspondingly hinged with the upper end of the upper group of swing arms;

a driving rod of the jacking oil cylinder is connected with the lowest group of swing arms;

the upper end of the swing arm in the uppermost group is connected with a lifting platform;

the lower ends of the swing arms of the lowermost group are connected with the base.

The base on be fixed with the sliding tray, swing arm lower extreme of lower group articulate and connect the locating plate, and the locating plate of one side is located the sliding tray of fixed mounting on the base, the locating plate of opposite side is fixed on the base.

The sliding groove is fixedly connected with the base through an inner hexagon bolt.

The lower surface of the lifting platform is fixedly provided with a sliding groove, the upper end part of the uppermost group of swing arms is hinged with a positioning plate, the lifting platform is fixed on the positioning plate, and the positioning plate on the same side is positioned in the sliding groove fixedly arranged below the lifting platform.

The sliding groove is fixedly connected with the lifting platform through an inner hexagon bolt.

And a roller device is arranged below the base.

Supporting legs are arranged below the base and used for supporting the base.

A handle is fixedly arranged on one side of the base.

The utility model has the following effects:

this device can assist some volumes great to nuclear level equipment overhaul in-process, and weight is heavier, and the higher spare part in position is dismantled and is installed, accomplishes the maintenance work to equipment.

Through a further design, one end of a swing arm of the lifting device is fixed on the base, and the other end of the swing arm can slide in a sliding groove which is fixed on the base through a bolt. The swing arm can be pushed by the jacking oil cylinder to slide in the sliding groove, so that the height of the lifting platform is adjusted.

The nuclear-grade equipment maintenance lifting device can effectively reduce the labor input and the labor intensity of workers in the work process, and improve the maintenance efficiency and the maintenance quality in the work process;

the lifting device is simple and reliable in structure, the lifting height of the lifting device is adjusted according to different positions of parts during field use, and the lifting device is convenient to use.

In the maintenance of nuclear level equipment, use this elevating gear can solve and dismantle the problem of difficulty to some spare parts at the maintenance in-process, also can reduce the human input and staff's in the work working strength, further guarantee staff's safety, improve work efficiency and maintenance quality.

Drawings

FIG. 1 is a schematic view of a nuclear-grade equipment overhaul lifting device;

FIG. 2 is a side view of the nuclear scale equipment overhaul lifting device in an extended condition;

FIG. 3 is a schematic view of the connection between the elevating platform and the sliding groove;

in the figure: 1. a lifting platform; 2. locking the nut; 3. a swing arm; 4. a hexagon socket head cap screw; 5. a base; 6. a roller device; 7. supporting legs; 8. moving the handle; 9. a sliding groove; 10. and (4) a jacking oil cylinder.

Detailed Description

The utility model is further illustrated by the accompanying drawings and the detailed description.

As shown in fig. 1, the nuclear-grade equipment overhaul lifting device comprises: the lifting device comprises a base 5, a lifting platform 1 positioned above the base, two sliding grooves 9 fixedly arranged on the base 5 and on the lower surface of the lifting platform 1, and a multi-piece swinging arm 3 positioned between the base 5 and the lifting platform 1;

the sliding groove 9 is fixedly connected with the base 5 and the lifting platform 1 through the hexagon socket head cap screw 4;

a jacking oil cylinder 10 is arranged on the base 5 and used for providing driving force for the swing arm 3 above;

the swing arms 3 are provided with a plurality of heels, every two of the heels are arranged in a group in a crossed mode, and the crossed positions are hinged through locking nuts 2;

the lower end of each group of swing arms 3 is correspondingly hinged with the upper end of the upper group of swing arms 3;

the lower end parts of the swing arms 3 of the lowest group are hinged with positioning plates, the positioning plate at one side is positioned in a sliding groove 9 fixedly arranged on the base 5, and the positioning plate at the other side is fixed on the base 5;

the upper end part of the swing arm 3 of the uppermost group is hinged with a positioning plate, the lifting platform 1 is fixed on the positioning plate, and the positioning plate on the same side is positioned in a sliding groove 9 fixedly arranged below the lifting platform 1;

the driving rod of the jacking oil cylinder 10 is connected with the lowermost group of swing arms 3;

a roller device 6 is arranged below the base 5 and can move flexibly through the roller device 6;

supporting feet 7 are arranged below the base 5 to support the base 5 to a certain height away from the ground, so that the jacking oil cylinder 10 can perform operation;

a handle 8 is arranged on one side of the base 5, the moving direction can be controlled and adjusted by moving the handle 8, and the lifting device can be conveniently and rapidly moved according to the actual on-site maintenance requirement;

the lifting platform 1 is realized by the lifting of the manual hydraulic pump driving jacking oil cylinder 10:

after the jacking cylinder 10 is started, the driving rod of the jacking cylinder 10 is connected with the lowest group of swing arms 3, so that the group of swing arms 3 are driven to perform hinged motion, the whole swing arms 3 are changed from a compressed and folded state to an unfolded state, as shown in fig. 2 and 3, through the design of the sliding groove 9, the swing arms 3 can slide, the height of the lifting platform is changed, and the horizontal position of the lifting platform 1 at the top is driven to be lifted.

Due to the design of the swing arm 3, the lifting height of the lifting platform can be adjusted within the maximum lifting height range of the lifting platform, and the device has good applicability and is suitable for the disassembly and assembly work of various parts of various devices.

The overhaul lifting device is used for carrying out overhaul work on site, the roller device enables the overhaul lifting device to have good maneuverability, the overhaul site can be flexibly moved, the moving direction can be controlled and adjusted through the moving handle, and the lifting device can be conveniently and quickly moved according to the actual overhaul requirement on site. And adjusting the height of the lifting platform according to the specific position of the part to detach and install the part, and finishing corresponding overhaul work.

After the height of the lifting device is adjusted according to the actual on-site maintenance requirement, the valve of the hydraulic pump is closed, and the height of the maintenance lifting device can be kept at the height. At this moment, the supporting legs 7 can be adjusted to the ground to support the whole maintenance lifting device, and the supporting legs can also play a role in fixing the lifting device to prevent the lifting device from moving. The sliding groove 9 is fixed on the base through the hexagon socket head cap screw 4.

Except for being used for spare part to dismantle, still can use the device to transport spare part to the destination under dismantling, effectively reduce the human input and staff's intensity of labour in the work, improved work efficiency and maintenance quality.

The nuclear-grade equipment parts are disassembled and reassembled through the lifting device, the falling risk of the parts during maintenance can be effectively reduced, the safety of maintenance personnel is guaranteed, and the safety of maintenance work is improved.

Although the utility model has been described in detail, it is to be understood that the utility model is not limited thereto, and that various changes and modifications may be made without departing from the spirit and scope of the utility model.

Claims (8)

1. The utility model provides a nuclear level equipment overhauls elevating gear which characterized in that: the device comprises a base (5), a lifting platform (1) positioned above the base, and a plurality of swing arms (3) positioned between the base (5) and the lifting platform (1); a jacking oil cylinder (10) is arranged on the base (5) and is used for providing driving force for the swing arm (3) above; the swing arms (3) are provided with even numbers of heels, are arranged in a group of pairs in a crossed manner, and are hinged at the crossed positions; the lower end of each group of swing arms (3) is correspondingly hinged with the upper end of the upper group of swing arms (3); a driving rod of the jacking oil cylinder (10) is connected with the lowest group of swing arms (3); the upper end of the swing arm (3) at the uppermost group is connected with the lifting platform (1); the lower ends of the swing arms (3) of the lowest group are connected with a base (5).

2. The nuclear scale equipment overhaul lifting device of claim 1, wherein: the swing arm mechanism is characterized in that a sliding groove (9) is fixedly arranged on the base (5), the lower end of the swing arm (3) in the lowest group is hinged with a positioning plate, the positioning plate on one side is positioned in the sliding groove (9) fixedly arranged on the base (5), and the positioning plate on the other side is fixed on the base (5).

3. The nuclear scale equipment overhaul lifting device of claim 2, wherein: the sliding groove (9) is fixedly connected with the base (5) through an inner hexagon bolt (4).

4. The nuclear scale equipment overhaul lifting device of claim 1, wherein: the lower surface of the lifting platform (1) is fixedly provided with a sliding groove (9), the upper end part of the uppermost group of swing arms (3) is hinged with a positioning plate, the lifting platform (1) is fixed on the positioning plate, and the positioning plate on the same side is positioned in the sliding groove (9) fixedly arranged below the lifting platform (1).

5. The nuclear scale equipment overhaul lifting device of claim 4, wherein: the sliding groove (9) is fixedly connected with the lifting platform (1) through an inner hexagon bolt (4).

6. The nuclear scale equipment overhaul lifting device of claim 1, wherein: and a roller device (6) is arranged below the base (5).

7. The nuclear scale equipment overhaul lifting device of claim 1, wherein: supporting legs (7) are arranged below the base (5) and used for supporting the base (5).

8. The nuclear scale equipment overhaul lifting device of claim 1, wherein: and a handle (8) is fixedly arranged on one side of the base (5).

Images