CN215628150U - Hoisting tool for heat treatment warhead shell of pit furnace - Google Patents

Abstract

The utility model discloses a hoisting tool for a shell of a heat treatment warhead of a shaft furnace, which comprises a hoisting plate, an upper limiting frame, a lower limiting frame and a chassis which are arranged from top to bottom, wherein the hoisting plate, the upper limiting frame, the lower limiting frame and the chassis are fixed together by a plurality of upright posts which are arranged in a penetrating manner; go up the spacing frame and all correspond to be equipped with the one or more through-hole that are used for placing the work piece with lower spacing frame center, just go up between spacing frame and the lower spacing frame, all be equipped with a plurality of regulation backing rings between spacing frame and the chassis down. Compared with the prior art, the utility model effectively solves the problems of poor universality, incapability of fixing and easy deformation of the existing large and medium caliber warhead well type quenching furnace heat treatment tool, and the quality of the product is influenced, thereby providing guarantee for convenient and rapid heat treatment.

Description

Hoisting tool for heat treatment warhead shell of pit furnace

Technical Field

The utility model relates to the technical field of heat treatment of warhead shells, in particular to a hoisting tool for a well-type furnace heat treatment warhead shell, which is suitable for heat treatment of a blind hole type warhead shell with large, medium and long diameters in a well-type furnace.

Background

At present, when a certain large-caliber and medium-caliber warhead is quenched by a pit furnace, factors such as difficult hoisting, easy rolling and slipping, low safety factor and the like exist due to large size and length-diameter ratio of a workpiece; the workpiece is easy to shake or collide with each other in the clamping process or quenching process, the deformation of the workpiece is large, the repair is difficult after quenching, and the quality consistency is poor; and the clamping universality of the warhead shell with different calibers is poor, the manufacturing cost of the lifting appliance is high, and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defects, the utility model aims to provide a hoisting tool for a well type furnace heat treatment warhead shell, which effectively solves the problems of poor universality, incapability of fixing and easiness in deformation of the existing large and medium caliber warhead well type quenching furnace heat treatment tool, and provides guarantee for convenient and quick heat treatment.

In order to achieve the purpose, the utility model adopts the technical scheme that: a hoisting tool for a shell of a warhead of a shaft furnace for heat treatment comprises a hoisting plate, an upper limiting frame, a lower limiting frame and a chassis which are arranged from top to bottom, wherein the hoisting plate, the upper limiting frame, the lower limiting frame and the chassis are fixed together by a plurality of upright posts which penetrate through the hoisting plate, a hoisting rod head is fixed in the center of the hoisting plate, and the top of the hoisting rod head is connected with a hoisting device in a locking manner; go up spacing frame and down the spacing frame center and all correspond and be equipped with one or more through-holes that are used for placing the work piece, just go up between spacing frame and the lower spacing frame, all be equipped with a plurality of regulation backing rings between spacing frame and the chassis down, adjust the backing ring and cup joint in the stand outer wall, adjust the position of spacing frame and lower spacing frame on the stand through adjusting the backing ring, make the work piece can stabilize the hoist and mount.

Furthermore, the lower part of the lifting device is provided with a positioning frame for placing the top of the head of the lifting rod, one side of the positioning frame is provided with a slot convenient for the head of the lifting rod to enter, one end of the slot is hinged with a locking clamping plate, and the locking clamping plate is provided with a bayonet connected with the other end of the slot in a clamping manner.

The stand stretches out and lifts by crane the dish upper portion and be equipped with the end cap, the stand outer wall is equipped with spacing cardboard in the end cap below, fixes stand and the dish of lifting by crane together through spacing cardboard.

The outer diameter of the hoisting disc is larger than that of the chassis; the outer diameter of the hoisting disc is larger than the inner diameter of the shaft furnace; the outer diameter of the chassis is smaller than the inner diameter of the shaft furnace.

When the lifting device works, a workpiece is placed into a cavity defined by the upright posts, and the using number of the adjusting backing rings is reasonably adjusted between the upper limiting frame and the lower limiting frame and between the lower limiting frame and the chassis according to the difference of the lengths of the workpiece and the difference of the caliber of a warhead, so that the workpiece can be stably lifted; after the clamping is stable, the whole crane is hoisted by the crane, the workpiece is placed into the pit furnace for heat treatment, and because the outer diameter of the hoisting disc is larger than the inner diameter of the pit furnace, the outer edge of the hoisting disc is hung in the pit furnace in the heat treatment process, so that the workpiece can be conveniently hung in the furnace for heat treatment; the positions of the upper limit frame and the lower limit frame can be adjusted through the adjusting backing ring, so that the device is suitable for workpieces with different lengths and calibers, and the stability of the workpieces during hoisting is ensured; go up spacing frame and lower spacing frame center and set up a plurality of through-holes, can once satisfy a plurality of work pieces and carry out thermal treatment, can effectively improve thermal treatment efficiency.

The utility model has the beneficial effects that: the hoisting device is provided with the locking clamping plate, so that the head of the hoisting rod is firmly locked, and the danger that the hoisting device integrally slides out in the hoisting moving process is solved; the upper limiting frame and the lower limiting frame are used for stabilizing the workpiece, so that the problems that the workpiece of a revolution body is difficult to position and easy to roll and slide are solved; the number of the adjusting backing rings is selected according to the caliber, the length and the like of the workpiece, and the limiting frames with proper size and structure are matched, so that single piece hoisting of a large-caliber and deep-long-sized warhead and combined hoisting of multiple pieces such as small-caliber and short workpieces can be realized, and the types of the warhead capable of being hoisted are greatly improved; the difficult problem of poor universality of the hoisting tool in the prior art can be solved by simply replacing the heightening backing ring and the limiting frame, and the hoisting tool is simple to allocate and low in cost; during heat treatment, the bottom of the workpiece is erected on the chassis, the periphery of the warhead is suspended, large areas of the warhead are not contacted with foreign objects, the heating is uniform, the heat treatment effect of the thin-wall workpiece is further improved, and the problems of low yield, difficult repair and the like caused by deformation of the thin-wall workpiece in the heat treatment and hoisting processes are reduced; even if the chassis, the limiting frame and the upright post are deformed and repaired, the tool is good in reusability and long in service life.

Drawings

The structure and features of the present invention will be further described with reference to the accompanying drawings and examples.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a schematic view of the locking connection between the lifting device and the suspension rod head according to the present invention.

FIG. 4 is a schematic view of the connection between the hoisting platform and the limiting clamp plate according to the present invention.

FIG. 5 is a schematic view of the connection of the chassis, the lower limit frame, the upright post and the adjusting grommet in the present invention.

FIG. 6 shows two embodiments of the upper limit box and the lower limit box of the present invention.

FIG. 7 is a schematic view of multi-hole multi-layer clamping of a workpiece according to the present invention.

In the drawings 1-7, 1 is a chassis, 2 is an adjusting backing ring, 3 is a lower limiting frame, 4 is an upright post, 5 is a lifting disc, 6 is a limiting clamping plate, 7 is a lifting rod head, 8 is a lifting device, 9 is a workpiece, 10 is an upper limiting frame, 11 is a positioning frame, 12 is a locking clamping plate, 13 is a bayonet, 14 is a plug, 15 is a limiting clamping plate, 16 is a through hole, and 17 is a slot.

Detailed Description

Referring to the attached drawings 1-7, the utility model discloses an embodiment of the utility model, and discloses a hoisting tool for a shell of a heat treatment warhead of a shaft furnace, which comprises a hoisting platform 5, an upper limiting frame 10, a lower limiting frame 3 and a chassis 1 which are arranged from top to bottom, wherein the hoisting platform 5, the upper limiting frame 10, the lower limiting frame 3 and the chassis 1 are fixed together by a plurality of upright posts 4 which are arranged in a penetrating manner, a hoisting rod head 7 is fixed at the center of the hoisting platform 5, and the top of the hoisting rod head 7 is connected with a hoisting device 8 in a locking manner; go up spacing frame 10 and 3 centers of spacing frame down and all correspond and be equipped with one or more through-holes 16 that are used for placing the work piece, just go up between spacing frame 10 and the spacing frame 3 down, all be equipped with a plurality of regulation backing rings 2 between spacing frame 3 and the chassis 1 down, adjust backing ring 2 and cup joint in stand 4 outer walls, adjust the position of spacing frame 10 and spacing frame 3 on stand 4 down through adjusting backing ring 2, make work piece 9 can stabilize the hoist and mount.

The utility model discloses a lifting by crane 8, including lifting by crane 8, location frame 11, slot 17, locking cardboard 12, bayonet 13, right picture demonstration locking cardboard has locked the lifting by crane head to the location frame 11 that is used for placing lifting by crane head 7 top, location frame 11 one side is equipped with the fluting 17 that the lifting by crane head 7 got into of being convenient for, fluting 17 department one end articulates there is locking cardboard 12, is equipped with on the locking cardboard 12 with the bayonet socket 13 of fluting 17 department other end joint, and figure 3 shows that the left picture shows that the lifting by crane head gets into the location frame, and the locking cardboard waits to lock, and the right picture shows that the locking cardboard has locked the lifting by crane head to the location frame.

A plug 14 is arranged at the upper part of the upright post 4 extending out of the hoisting tray 5, a limiting clamping plate 15 is arranged below the plug 14 on the outer wall of the upright post 4, and the upright post 4 and the hoisting tray 5 are fixed together through the limiting clamping plate 15, which is shown in the attached figure 4.

The outer diameter of the hoisting platform 5 is larger than that of the chassis 1; the outer diameter of the hoisting plate 5 is larger than the inner diameter of the shaft furnace, so that the edge of the hoisting plate is hung on the shaft furnace mouth when the hoisting plate is hoisted in place; the outer diameter of the chassis 1 is smaller than the inner diameter of the shaft furnace, so that the whole hoisting can be conveniently and rapidly carried in place.

When the adjustable vertical column type workpiece positioning device is used, the vertical column 4 penetrates through the chassis 1 and the upper limiting frame 3, a workpiece 9 is placed in the lower limiting frame 3, the number of the adjusting backing rings 2 is adjusted according to the size of the workpiece 9, the height of the lower limiting frame 3 is further adjusted, and the upper limiting frame 10 is fixed by adjusting the adjusting backing rings 2; the hanging rod head 7 penetrates through the hoisting platform 5 and is hung on the hoisting device 8, and the hoisting device 8 fixes the hanging rod head 5 through the locking clamping plate; the hoisting machine hoists the hoisting device 8 and the hoisting platform 5, the hoisting device, the chassis 1, the upright post 4 and the like are assembled together, the limiting clamping plate 6 is clamped at the tail end of the upright post, finally, all parts are stably assembled into a whole, the parts move to the shaft furnace along with the hoisting machine, and the edge of the hoisting platform 5 is hung in the shaft furnace to finish hoisting.

During operation, the number of the adjusting backing rings 2 is adjusted according to the length and the diameter of the workpiece 9, so that the position of the lower limiting frame 3 is adjusted, and the workpiece is ensured to be stable and free of shaking.

When the diameter of the workpiece is smaller, matched 2-hole, 3-hole, 4-hole and 5-hole limiting frames can be matched, and a proper backing ring is added on the base plate to place 2-5 workpieces; when the length of the workpiece is small, the matched limiting frame can be matched, the workpiece is placed in the upper position space and the lower position space in a double-layer mode, the space of the heat treatment furnace is effectively utilized, the production efficiency is improved, the upper limiting frame and the lower limiting frame can be provided with a plurality of through holes in the display of the attached drawing 6, the limiting frame which can be provided with a plurality of porous positions is shown in the attached drawing 7, two layers or even three layers are hoisted at one time, and the two layers of workpieces are hoisted in the display of the attached drawing.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. A lifting device for a well type furnace heat treatment warhead shell, which is characterized in that: the lifting platform, the upper limiting frame, the lower limiting frame and the chassis are fixed together by a plurality of upright posts which penetrate through the lifting platform, a lifting rod head is fixed in the center of the lifting platform, and the top of the lifting rod head is connected with a lifting device in a locking manner; go up spacing frame and down the spacing frame center and all correspond and be equipped with one or more through-holes that are used for placing the work piece, just go up between spacing frame and the lower spacing frame, all be equipped with a plurality of regulation backing rings between spacing frame and the chassis down, adjust the backing ring and cup joint in the stand outer wall, adjust the position of spacing frame and lower spacing frame on the stand through adjusting the backing ring, make the work piece can stabilize the hoist and mount.

2. The hoist tool for a pit furnace thermal treatment warhead housing of claim 1, wherein: the lifting device is characterized in that a positioning frame used for placing the top of the head of the lifting rod is arranged on the lower portion of the lifting device, a groove convenient for the lifting rod head to enter is formed in one side of the positioning frame, a locking clamping plate is hinged to one end of the groove, and a bayonet connected with the other end of the groove in a clamped mode is formed in the locking clamping plate.

3. The hoist tool for a pit furnace thermal treatment warhead housing of claim 1, wherein: the stand stretches out and lifts by crane the dish upper portion and be equipped with the end cap, the stand outer wall is equipped with spacing cardboard in the end cap below, fixes stand and the dish of lifting by crane together through spacing cardboard.

4. The hoist tool for a pit furnace thermal treatment warhead housing of claim 1, wherein: the outer diameter of the hoisting disc is larger than that of the chassis; the outer diameter of the hoisting disc is larger than the inner diameter of the shaft furnace; the outer diameter of the chassis is smaller than the inner diameter of the shaft furnace.

Images