CN217620341U

CN217620341U - Puller for disassembling actuating mechanism of stirring device

Info

Publication number: CN217620341U
Application number: CN202123073174.5U
Authority: CN
Inventors: 汤锐; 宋朋飞; 李鹏勇
Original assignee: 404 Co Ltd China National Nuclear Corp
Current assignee: 404 Co Ltd China National Nuclear Corp
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-10-21
Anticipated expiration: 2031-12-08

Abstract

The utility model belongs to the technical field of the spent fuel aftertreatment, concretely relates to a draw ware that is used for agitating unit actuating mechanism to dismantle. Draw piece, back drawing piece, crossbeam and bolt assembly including preceding, preceding drawing piece is the same with back drawing piece structure, symmetrical arrangement, and its main structure body is the rectangular plate, and it has the square hole to open on the rectangular plate, and the crossbeam passes the square hole, is provided with the bar connecting plate perpendicularly in the one corner of rectangular plate, and it has two round holes to open on the bar connecting plate, and bolt assembly passes the round hole. Puller device simple structure, installation convenient to use can accomplish the dismantlement to agitating unit actuating mechanism.

Description

Puller for disassembling actuating mechanism of stirring device

Technical Field

The utility model belongs to the technical field of the spent fuel aftertreatment, concretely relates to a draw ware that is used for agitating unit actuating mechanism to dismantle.

Background

The stirring device is one of main devices of the post-treatment system, and the continuous and stable operation of the process system is directly influenced by the running state of the device. When the stirring device breaks down, the stirring device executing mechanism needs to be disassembled and then overhauled. The stirring device mainly comprises an actuating mechanism, an intermediate transmission shaft and a stirring paddle, wherein the actuating mechanism is vertically fixed on a ground flange, the intermediate transmission shaft is arranged in a pre-buried sleeve, and the stirring paddle is positioned in a container below the ground. The output end shaft head of the actuating mechanism of the stirring device is in key connection with the shaft sleeve of the intermediate transmission shaft. When the trouble phenomenon of axle sleeve and connecting key wearing and tearing appear, can lead to actuating mechanism output spindle nose card in the axle sleeve, and then cause agitating unit actuating mechanism to dismantle the difficulty, increase the equipment and examine the maintenance degree of difficulty.

When the above problems occur, if a crowbar is used to be inserted into the gap between the flange of the actuating mechanism and the ground flange for prying, the flange is damaged. If use traditional couple formula puller to dismantle actuating mechanism, then need remote control overhead traveling crane and chain block cooperation operation, the maintenance process is complicated, and is consuming time longer, increases the maintainer and shines the dosage level, causes the injury to the maintainer is healthy. Because the contact area of the hook is small, the height of the step of the hook is not enough, the lifting appliance is easy to unhook, so that the damage of an actuating mechanism is caused, and the service life of the equipment is shortened.

In view of the above, a special puller must be designed for disassembling the stirring device actuating mechanism, so as to shorten the maintenance operation time and improve the maintenance operation quality.

Disclosure of Invention

An object of the utility model is to provide a puller for agitating unit actuating mechanism dismantles, agitating unit actuating mechanism's of being convenient for dismantlement. Convenient laborsaving in this puller use guarantees simultaneously that the device has higher reliability to improve maintenance efficiency and maintenance quality, avoid equipment damage, reduce the maintainer and receive the irradiation dose level.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

the utility model provides a puller for agitating unit actuating mechanism dismantles, draws piece, crossbeam and bolt assembly after drawing the piece including the front, and preceding drawing piece is the same with back drawing a structure, and symmetrical arrangement, its main structure body are the rectangular plate, and it has the square hole to open on the rectangular plate, and the crossbeam passes the square hole, is provided with the bar connecting plate perpendicularly in the one corner of rectangular plate, and it has two round holes to open on the bar connecting plate, and bolt assembly passes the round hole.

The main body of the structure is a rectangular plate with the thickness of 12 multiplied by 120 multiplied by 300 mm.

The square hole is 22X 22mm.

The strip-shaped connecting plates are 12 mm by 20 mm by 150mm.

Two 14mm round holes are arranged on the strip-shaped connecting plate.

The beam is a cuboid of 20X 300 mm.

The bolt assembly was 4.8M12.

The front drawing piece is placed at the front end of a notch between the actuating mechanism of the stirring device and the ground connecting flange, and the rear drawing piece is placed at the rear end of the notch.

Two screw jacks are symmetrically arranged at two ends of the cross beam.

The utility model discloses the beneficial effect who gains does:

compare with ordinary dismounting device, puller device simple structure, installation convenient to use can accomplish the dismantlement to agitating unit actuating mechanism. In addition, the structural feature of this puller device laminates the maintenance operation under the strong radioactivity occasion more, and through one year's engineering application, the device can satisfy the user demand. The beneficial effects are as follows:

(1) The operation is convenient: the device adopts the modularized design, and after the field installation is completed, the device is matched with two screw jacks, so that the disassembly of the actuating mechanism of the stirring device can be realized.

(2) The applicability is strong: the actuating mechanism can be disassembled without using a remote control crown block, and the operating characteristics under the strong radiation environment are met.

(3) The preparation is convenient: the main body structure of each part is simple, the processing and the manufacturing are convenient, and the connection form is simple and reliable.

Drawings

FIG. 1 is a schematic drawing of a puller for use in disassembly of an actuator of a stirring device;

FIG. 2 is a schematic view of a puller for use in disassembly of an actuator of the stirring apparatus;

FIG. 3 is a functional illustration of a puller;

in the figure: 1-front drawing piece; 2-post drawing the piece; 3-a cross beam; 4-bolt assembly.

Detailed Description

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

In the field of spent fuel post-treatment, the equipment installation environment has high irradiation level, aerosol content and surface pollution and high inspection and maintenance difficulty. When the stirring device breaks down, the actuating mechanism of the stirring device needs to be disassembled, and the maintenance method using the remote control crown block and the chain block for matching operation can cause the reduction of maintenance quality and maintenance efficiency due to various defects, and can not meet the requirement of continuous and stable operation of a process system.

For this reason, the utility model device should possess following technical requirement:

(1) All parts of the device have high strength and high overall reliability and safety.

(2) Each part is designed in a modularized mode, and the installation and the use on site are convenient.

(3) In the dismounting process, the mounting positions of the screw jacks are symmetrical and the screw jacks are required to stably operate in the lifting process.

All parts of the drawing device are made of 16Mn materials, a front drawing part 1 and a rear drawing part 2 are identical in structure and are symmetrically arranged, the structural main body of the drawing device is a rectangular plate (12 multiplied by 120 multiplied by 300 mm), a square hole (22 multiplied by 22) is formed in the rectangular plate, a strip-shaped connecting plate (12 multiplied by 20 multiplied by 150) is vertically arranged at one corner of the rectangular plate, and two phi 14mm round holes are formed in the strip-shaped connecting plate.

The cross beam 3 is a 20X 300mm rectangular parallelepiped, and the bolt assembly 4 is 4.8M12. The front drawing piece 1 and the rear drawing piece 2 are of a symmetrical structure, and an insertion opening of the cross beam 3 and a through hole for connecting the bolt assembly 4 are machined in the front drawing piece and the rear drawing piece.

Draw piece 1 before during the use and place the notch front end between agitating unit actuating mechanism and the ground flange, draw piece 2 after will and place the notch rear end, then insert bolt assembly 4, fixed two draw a relative position. The beam 3 is inserted into the corresponding insertion openings of the front and rear pulling pieces 1 and 2, and then the installation of the puller can be completed.

After the puller is installed, two screw jacks are placed at symmetrical positions at two ends of the cross beam 3, the cross beam 3 is jacked by operating the screw jacks, the actuating mechanism is separated from the ground connecting flange, and therefore the actuating mechanism of the stirring device is detached.

The puller comprises a front puller 1, a rear puller 2, a cross beam 3 and a bolt assembly 4. In the process of maintenance operation, the drawing piece 1 is firstly placed at the lower front end of the actuating mechanism of the stirring device, and the rear drawing piece 2 is placed at the rear end. Secondly, fixing the relative positions of the two drawing pieces by using a bolt assembly 4, then penetrating the beam 3 into the beam holes of the two drawing pieces, and finally jacking up the actuating mechanism of the stirring device by using two screw jacks which are symmetrically arranged to realize the disassembly of the actuating mechanism.

Claims

1. The utility model provides a puller that is used for agitating unit actuating mechanism to dismantle which characterized in that: draw piece, back drawing piece, crossbeam and bolt assembly including preceding, preceding drawing piece and back drawing piece structure is the same, symmetrical arrangement, and its main structure body is the rectangular plate, and it has the square hole to open on the rectangular plate, and the crossbeam passes the square hole, is provided with the bar connecting plate perpendicularly in the one corner of rectangular plate, and it has two round holes to open on the bar connecting plate, and bolt assembly passes the round hole.

2. The puller for use in disassembly of a blender actuator as recited in claim 1, wherein: the main body of the structure is a rectangular plate with the thickness of 12 multiplied by 120 multiplied by 300 mm.

3. The puller for use in disassembly of a blender actuator as recited in claim 1, wherein: the square hole is 22X 22mm.

4. The puller for use in disassembly of an actuator of a stirring device as recited in claim 1, wherein: the strip-shaped connecting plate is 12 multiplied by 20 multiplied by 150mm.

5. The puller for use in disassembly of a blender actuator as recited in claim 1, wherein: two 14mm round holes are formed in the strip-shaped connecting plate.

6. The puller for use in disassembly of an actuator of a stirring device as recited in claim 1, wherein: the beam is a cuboid of 20X 300 mm.

7. The puller for use in disassembly of a blender actuator as recited in claim 1, wherein: the bolt assembly was 4.8M12.

8. The puller for use in disassembly of a blender actuator as recited in claim 1, wherein: the front drawing piece is placed at the front end of a notch between the actuating mechanism of the stirring device and the ground connecting flange, and the rear drawing piece is placed at the rear end of the notch.

9. The puller for use in disassembly of an actuator of a stirring device as recited in claim 1, wherein: two screw jacks are symmetrically arranged at two ends of the cross beam.