CN218658774U - Special tool for disassembling and assembling impeller powder feeder - Google Patents

Abstract

The utility model belongs to the technical field of mechanical maintenance tool, concretely relates to impeller feeder dismouting specialized tool. The utility model discloses an impeller powder feeder dismouting specialized tool includes fixing device, powder feeder, dismouting subassembly and hoisting accessory, the powder feeder set up in fixing device is last, the dismouting subassembly set up in fixing device's below, the dismouting subassembly is including drawing horse body, anchor clamps and locking part, be equipped with the pull rod on drawing the horse body, the pull rod is connected with anchor clamps, and anchor clamps are installed on the impeller of the required dismouting of powder feeder, anchor clamps link to each other with the impeller of powder feeder, be equipped with the locking part who is used for locking the impeller on the pull rod. After the disassembly and assembly component and the impeller to be disassembled are clamped, the lifting device can conveniently realize position adjustment and the like of the disassembly and assembly component, the working efficiency can be improved, and personal safety in the disassembly and assembly process and damage to machinery are guaranteed.

Description

Special tool for disassembling and assembling impeller powder feeder

Technical Field

The utility model belongs to the technical field of mechanical maintenance tool, concretely relates to impeller feeder dismouting specialized tool.

Background

The impeller powder feeder is an important auxiliary device for supplying fuel to a boiler by a storage type pulverizing system of a thermal power plant, and can uniformly feed pulverized coal in a pulverized coal bin into a primary air pipe, so that the pulverized coal is prevented from flowing automatically, and the powder supply is uniform. The impeller powder feeder comprises a scraper plate, a two-stage impeller, a partition plate and an impeller shell which are positioned on the lower part, and pulverized coal enters the powder feeder from the lower part of a powder bin, is scraped into a supply impeller below a gap of the partition plate by an agitator, is rotated by the impeller to drive the pulverized coal to rotate 180 degrees in the supply impeller shell, falls into a metering impeller, rotates 180 degrees again, falls into a gap of a lower partition plate, enters a powder outlet pipe, passes through an air-powder mixer, and is uniformly fed into a hearth for combustion by hot air. The stable burning of buggy in the furnace relies on the homogeneity of giving the powder and the adjustment performance that the powder feeder adapts to the load change to a great extent, in order to guarantee the operating efficiency of powder feeder, needs regularly to carry out dismouting maintenance to the powder feeder.

When the powder feeder needs to be disassembled for maintenance, the internal assembly of the device is very compact, and the two layers of impellers of the powder feeder are installed in a superposition mode, so that the powder feeder is very difficult to disassemble, assemble and align up and down, inconvenience is brought to maintainers, time and labor are wasted, the working efficiency is low, and personal injury safety accidents caused by finger squeezing injury of the maintainers are very easy to happen.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that prior art exists, the utility model aims to provide an impeller feeder dismouting specialized tool.

In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:

the special tool for disassembling and assembling the impeller powder feeder comprises a fixing device, the powder feeder, a disassembling and assembling assembly and a lifting device, wherein the powder feeder is arranged on the fixing device, the disassembling and assembling assembly is arranged below the fixing device and comprises a puller body, a clamp and a locking part, a pull rod is arranged on the puller body and connected with the clamp, the clamp is arranged on an impeller, required to be disassembled and assembled, of the powder feeder, the clamp is connected with the impeller of the powder feeder, and the locking part used for locking the impeller is arranged on the pull rod.

Preferably, the fixing device comprises a first beam, a connecting hole is formed in the powder feeder shell, and the first beam is connected with the connecting hole through a positioning piece so as to be fixed on the first beam.

Preferably, the hoisting device is a mobile gantry crane with both a first hoisting device and a second hoisting device.

Preferably, the first lifting device is an electric hoist, and the second lifting device is a chain block.

Preferably, the pull rod is connected with the clamp through threads.

Preferably, the positioning piece is a push-pull type quick clamp.

Compared with the prior art, the beneficial effects of the utility model are that:

the impeller supplies powder quick-witted scraper blade, supplies with the impeller, measures the impeller, supplies with the impeller shell at the dismouting in-process, need adjust the position repeatedly, carries out clearance measurement adjustment, and the space is limited, utilizes fixing device will give powder machine casing fixed back to press from both sides the dismouting subassembly with needs dismantlement impeller clamp, the position adjustment etc. of realization dismouting part that hoisting accessory can be convenient, can increase work efficiency, guarantee dismouting process personal safety simultaneously, reduce the damage to machinery.

Drawings

Fig. 1 is a schematic view of a use state of a special tool for dismounting and mounting an impeller powder feeder in embodiment 1 of the present application;

FIG. 2 is a schematic structural diagram of a disassembling and assembling component in embodiment 1 of the present application;

FIG. 3 is a schematic structural view of a powder feeder in embodiment 1 of the present application;

FIG. 4 is a schematic view showing a state of use of a special tool for assembling and disassembling a turbine according to embodiment 2 of the present application;

in the figure: 1. a fixing device; 11. a first cross member; 12. a second cross member; 13. a fixing plate; 2. a powder feeder; 21. a squeegee; 22. a supply impeller; 23. a supply impeller shell; 24. a metering impeller; 25. a partition plate; 3. disassembling and assembling the components; 31. a puller body; 311. a central lead screw; 312. a pull rod; 32. a clamp; 33. a locking member; 4. a hoisting device; 41. vertical beams, 42, diagonal braces; 43. a bottom beam.

Detailed Description

The present invention will be further described with reference to the following specific embodiments.

Example 1

As shown in fig. 1, a special tool for disassembling and assembling an impeller powder feeder comprises a fixing device 1, a powder feeder 2, a disassembling and assembling assembly 3 and a hoisting device 4, wherein the hoisting device 4 is a mobile gantry crane with an electric hoist and a chain block simultaneously, and can hoist a hoisted object up and down and move left and right; the movable portal frame comprises two vertical beams 41 in the vertical direction and inclined struts 42 on two sides of the vertical beams 41, the bottom ends of the two vertical beams 41 are provided with insertion holes, and the fixing device 1 comprises a first cross beam 11 and two second cross beams 12. The jack that two perpendicular roof beams 41 bottoms are passed respectively at the both ends of first crossbeam 11 to fix a position first crossbeam 11, the jack lifting hook on the electric block links to each other with powder feeder 2, powder feeder 2 diapire is placed on first crossbeam 11, and fixed through the setting element, the setting element adopts plug-type quick anchor clamps, pass the connecting hole on powder feeder 2 with plug-type quick anchor clamps and fix it on first crossbeam 11, peg graft respectively on the bracing 42 of two perpendicular roof beams 41 homonymies at the both ends of second crossbeam 12, and through first bolt fastening, bracing 42 and second crossbeam 12 are passed in proper order to first bolt. The dismounting assembly 3 comprises a puller body 31, a clamp 32 and a locking component 33, and the locking component 33 adopts a second bolt. The puller body 31 comprises a central lead screw 311 and two pull rods 312, the pull rods 312 are in threaded connection with the clamp 32, the clamping plates on the two sides of the clamp 32 are respectively provided with a second bolt, the clamp 32 is arranged on the impeller of the powder feeder 2 which needs to be disassembled and assembled and is fixed through the locking part 33, and one end of the second bolts on the two sides, which penetrates out of the clamping plates, is abutted to the screw hole of the impeller. When the impeller needs to be lifted, the chain block is connected with the puller body 31, and the lifting can be finished by operating the chain block.

The implementation principle is as follows: when the impeller powder feeder 2 is disassembled or needs to be installed, firstly, the movable gantry crane is moved to the impeller powder feeder 2, the powder feeder 2 is lifted by the electric hoist and then placed at the first cross beam 11 below the gantry crane, the shell of the powder feeder 2 is fixed on the first cross beam 11 by a push-pull type quick clamp by utilizing an original connecting hole on the shell of the powder feeder 2, and then two second cross beams 12 are installed to limit the powder feeder 2; lifting the dismounting assembly 3 above the powder feeder 2 by using a chain block, connecting the dismounting assembly 3 with an impeller of the powder feeder 2, which needs to be dismounted, adjusting the clamp 32 to a proper position, then fixedly connecting the impeller with the clamp 32 by using the locking part 33, and then adjusting the forward and backward movement of the central screw 311 by rotating the central screw 311 so as to move the impeller needing to be dismounted, thereby completing the dismounting of the impeller of the powder feeder 2; the operation is repeated to complete the disassembly and assembly of the powder feeder 2.

Example 2

The present embodiment differs from embodiment 1 in that: the fixing device 1 is a fixing plate 13, the fixing plate 13 is placed on bottom beams 43 on two sides of a vertical beam 41 on the gantry crane, an opening is formed in the middle of two sides of the fixing plate 13, the side wall of the opening is abutted to the side wall of the vertical beam 41, so that the fixing plate 13 is positioned, and the bottom wall of the powder feeder 2 is placed on the fixing plate 13 and fixed through a positioning piece.

Claims (6)

1. The utility model provides an impeller feeder dismouting specialized tool, its characterized in that includes fixing device (1), feeder (2), dismouting subassembly (3) and hoisting accessory (4), feeder (2) set up in fixing device (1) is last, dismouting subassembly (3) set up in the below of fixing device (1), dismouting subassembly (3) are including drawing horse body (31), anchor clamps (32) and locking part (33), be equipped with pull rod (312) on drawing horse body (31), pull rod (312) are connected with anchor clamps (32), and anchor clamps (32) are installed on the impeller of the required dismouting of feeder (2), anchor clamps (32) link to each other with the impeller of feeder (2), be equipped with locking part (33) that are used for locking the impeller on pull rod (312).

2. The special tool for disassembling and assembling the impeller powder feeder according to claim 1, wherein the fixing device (1) comprises a first beam (11), a connecting hole is formed in the casing of the powder feeder (2), and the first beam (11) is connected with the connecting hole through a positioning piece so as to be fixed on the first beam (11).

3. The special tool for disassembling and assembling the impeller powder feeder according to claim 1, wherein the lifting device (4) is a mobile gantry crane with a first lifting device and a second lifting device.

4. The special tool for disassembling and assembling the impeller powder feeder according to claim 3, wherein the first hoisting device is an electric block, and the second hoisting device is a chain block.

5. The special tool for disassembling and assembling the impeller powder feeder according to claim 1, wherein the pull rod (312) is connected with the clamp (32) through threads.

6. The special tool for disassembling and assembling the impeller powder feeder according to claim 2, wherein the positioning member is a push-pull type quick clamp.

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