CN212450286U

CN212450286U - Heat treatment lifting appliance for pit furnace

Info

Publication number: CN212450286U
Application number: CN202021226973.4U
Authority: CN
Inventors: 赵新旺; 高静; 李文楠; 李文青; 李雨薇; 李雨豪
Original assignee: Zhengzhou Hongdong Industry Co ltd
Current assignee: Zhengzhou Hongdong Industry Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-02-02
Anticipated expiration: 2030-06-29

Abstract

The utility model provides a heat treatment hoist for pit furnace, including last jib, it is fixed with rings to go up the jib top, it is equipped with the lifting hook subassembly that is used for hanging and gets rings to go up the jib top, it can dismantle fixedly connected with and be used for placing the platform of placing of annular work piece to go up the jib bottom, place platform edge all around and can dismantle the connecting plate that the even interval of fixedly connected with set up, jib under the fixedly connected with can be dismantled to the bottom of placing the platform, jib bottom mounting has the platform that is used for placing cubic or gear class work piece down, the outside of platform is fixed with the bracing piece that is used for placing the long axis class work piece that a plurality of even intervals set up, the stopper that fixedly connected with was used for preventing that the long axis class work piece from dro. The lifting appliance can simultaneously meet the requirements of placing annular, massive, gear-like and long-shaft-like workpieces, and the requirements of placing annular workpieces of different sizes, can realize batch production, and has the advantages of enlarging the application range, improving the production efficiency and reducing the production cost.

Description

Heat treatment lifting appliance for pit furnace

Technical Field

The utility model belongs to the technical field of lifting device, especially, relate to a heat treatment hoist for pit furnace.

Background

The pit furnace is one of the main boiler forms in current machining production, is a cylindrical deep well structure, is mainly used for carrying out heat treatment such as uniform annealing, tempering, heating and the like on metal workpieces, is common tempering treatment equipment with good tempering effect and relatively energy saving, and can also carry out stress removal or annealing heat treatment. After the pit furnace is adopted to carry out heat treatment on the workpiece, the surface accuracy of the workpiece is good, and the toughness and the rigidity of the workpiece can be effectively ensured. Based on the above advantages, the shaft furnace is widely used in social production. During heat treatment, a special hoisting crane is required to be matched with a heat treatment lifting appliance to vertically load the workpiece into the pit furnace. The heat treatment lifting appliance for the pit furnace commonly used in the prior art can only meet the requirements of placement of workpieces with single shapes and single sizes, is small in application range, low in production efficiency and capable of wasting cost, can only place a single part under most conditions, does not use heating and cooling of large-batch parts, and increases heat treatment cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a heat treatment hoist for pit furnace to solve the heat treatment hoist for pit furnace among the prior art and only can satisfy placing of single shape, single size work piece, and only can place single part, application range is little, production efficiency is low and there is the problem of extravagant cost.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a heat treatment hoist for pit furnace, last jib including vertical setting, the top fixedly connected with rings of going up the jib, the top of going up the jib is equipped with the lifting hook subassembly that is used for hanging and gets rings, the platform of placing that fixedly connected with is used for placing annular work piece can be dismantled to the bottom of going up the jib, place the platform edge all around and can dismantle the connecting plate that the even interval of fixedly connected with set up, the lower jib of the vertical setting of fixedly connected with can be dismantled to the bottom of placing the platform, the bottom fixedly connected with of lower jib is used for placing the platform of massive work piece or gear class work piece, the bracing piece that is used for placing the long axis class work piece that the outside fixedly connected with of platform set up in a plurality of even intervals, the bracing piece level sets up around the platform, the stopper that is used for preventing that long axis class work piece from dro.

The lifting hook subassembly includes S type lifting hook and the first couple of fixed connection in one side on S type lifting hook upper portion, S type lifting hook include with rings matched with second couple and with crane matched with third couple, fixedly connected with connecting rod between second couple and the third couple, first couple fixed connection is on the upper portion of connecting rod, and the hook point direction of first couple is the same with the hook point direction of third couple.

The top fixedly connected with thread bush in the middle of placing the platform is equipped with the internal thread in the thread bush, goes up the outside of jib bottom and offers the external screw thread with internal thread matched with, goes up the bottom of jib and places threaded connection between the top of platform.

Place the fixed cover of bottom fixedly connected with in the middle of the platform, fixed cover is lower extreme opening, inside hollow structure, and the upper portion cover of jib is established in fixed cover down, and the mounting hole has all been seted up on the fixed upper portion of sheatheeing in and jib down, and lower jib can be dismantled fixed connection in fixed cover through the round pin axle that passes the mounting hole.

The placing table comprises a first bottom plate and a second bottom plate which are perpendicular to each other, the first bottom plate is fixedly connected with the second bottom plate, the first bottom plate and the second bottom plate are enclosed into a cross shape, reinforcing ribs are fixedly connected between the adjacent first bottom plate and the second bottom plate, and connecting plates extending outside the placing table are detachably and fixedly connected with the two ends of the first bottom plate and the two ends of the second bottom plate through hinge pins.

Set up the screw hole of the vertical setting of running through the bracing piece on the bracing piece, the bottom fixedly connected with of stopper runs through the threaded rod of screw hole, and fixed connection can be dismantled on the bracing piece through the nut in the lower part of threaded rod.

The hanging scaffold is circular, a plurality of rectangular grooves which are uniformly arranged at intervals and used for placing blocky workpieces are formed in the hanging scaffold along the circumferential direction, a plurality of fixing rods which are uniformly arranged at intervals and used for fixing gear workpieces are fixedly connected in the hanging scaffold along the circumferential direction, and the gear workpieces are sleeved outside the fixing rods.

The utility model has the advantages that: (1) the arrangement of the placing table, the hanging scaffold and the supporting rods can simultaneously meet the requirements of placing annular, blocky, gear and long-shaft workpieces, the connecting plates can be detachably and fixedly connected at the edges of the periphery of the placing table, the connecting plates with proper length and size can be selected and additionally arranged according to the size of the annular workpieces, the requirement of placing the annular workpieces with different sizes is met, the use range is expanded, batch production can be realized, the production efficiency is improved, and the production cost is reduced; (2) the lifting hook assembly is simple in structure, easy to process and convenient to operate, when the lifting hook assembly is used, the second hook is connected with the lifting ring, the third hook is connected with the lifting crane, before furnace charging and furnace discharging, the first hook can be held by hands to manually cooperate with the lifting crane to connect the second hook with the lifting ring and connect the third hook with the lifting crane, and the furnace charging and furnace discharging efficiency is effectively improved; (3) go up the jib and place between the platform, place between platform and the jib down, be between stopper and the bracing piece and dismantle fixed connection, the installation, dismantle the convenience, the convenience is in time maintained, is changed each part.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection between the placement platform and the connection board;

fig. 3 is a schematic structural view of the connection of the hanging scaffold and the support rod.

Reference numerals: 1-upper hanger rod, 2-rings, 3-hanger assembly, 4-S type lifting hook, 5-first hanger, 6-second hanger, 7-third hanger, 8-connecting rod, 9-placing table, 10-thread bush, 11-external thread, 12-first bottom plate, 13-second bottom plate, 14-reinforcing rib, 15-connecting plate, 16-lower hanger rod, 17-fixed cover, 18-mounting hole, 19-pin shaft, 20-hanging plate, 21-rectangular groove, 22-fixed rod, 23-supporting rod, 24-limiting block, 25-threaded hole, 26-threaded rod, 27-nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

As shown in figure 1, the utility model comprises an upper suspension rod 1 which is vertically arranged, a hanging ring 2 is welded at the top end of the upper suspension rod 1, a hook component 3 for hanging and taking the hanging ring 2 is arranged above the upper suspension rod 1, the hook component 3 comprises an S-shaped hook 4 and a first hook 5 which is fixedly connected with one side of the upper part of the S-shaped hook 4, the S-shaped hook 4 comprises a second hook 6 which is matched with the hanging ring 2 and a third hook 7 which is matched with a hoisting crane, a connecting rod 8 which is vertically arranged is fixedly connected between the second hook 6 and the third hook 7, the connecting rod 8 and the second hook 6, adopt integrated into one piece structure between the third couple 7, first couple 5 welding is on the upper portion of connecting rod 8, and the hook point direction of first couple 5 is the same with the hook point direction of third couple 7, and first couple 5 can assist lifts by crane the operation, effectively improves the efficiency of charge and play stove. The bottom of going up jib 1 can be dismantled fixedly connected with and be used for placing the platform 9 of placing of annular work piece, and the top welding in the middle of placing platform 9 has thread bush 10, has seted up the internal thread in the thread bush 10, goes up the outside of jib 1 bottom and seted up with internal thread matched with external screw thread 11, goes up jib 1's bottom and places threaded connection between the top of platform 9. As shown in fig. 2, the placing table 9 includes a first bottom plate 12 and a second bottom plate 13 which are perpendicular to each other, the first bottom plate 12 is fixedly connected with the second bottom plate 13, the first bottom plate 12 and the second bottom plate 13 are enclosed into a cross structure, a reinforcing rib 14 is welded between the adjacent first bottom plate 12 and the second bottom plate 13, stability and firmness of the placing table 9 are guaranteed, two ends of the first bottom plate 12 and two ends of the second bottom plate 13 are respectively detachably and fixedly connected with a connecting plate 15 which extends to the outside of the placing table 9 through a pin shaft 19, the connecting plate 15 with a proper length can be selected according to the size of the annular workpiece, the placing of the annular workpieces with different sizes is met, and the application range is expanded. The lower jib 16 of the vertical setting of fixedly connected with can be dismantled to the bottom of placing platform 9, lower jib 16 and the coaxial setting of last jib 1, the bottom welding of placing the middle of platform 9 has fixed cover 17, fixed cover 17 is lower extreme opening, inside hollow structure, the upper portion cover of lower jib 16 is established in fixed cover 17, mounting hole 18 has all been seted up on fixed cover 17 and on the upper portion of lower jib 16, lower jib 16 can dismantle fixed connection in fixed cover 17 through the round pin axle 19 that passes mounting hole 18. The lower end of the lower suspension rod 16 is welded with a suspension platform 20 for placing a block-shaped workpiece or a gear-type workpiece. As shown in fig. 3, the hanging scaffold 20 is circular, a plurality of rectangular grooves 21 for placing the blocky workpieces are formed in the hanging scaffold 20 along the circumferential direction, the plurality of fixing rods 22 for fixing the gear type workpieces are fixedly connected in the hanging scaffold 20 along the circumferential direction, the gear type workpieces are sleeved outside the fixing rods 22, and the radius of the circle surrounded by the fixing rods 22 is smaller than that of the circle surrounded by the rectangular grooves 21. The outside welding of platform sling 20 has the bracing piece 23 that is used for placing the major axis class work piece that a plurality of even intervals set up, bracing piece 23 level sets up the periphery at platform sling 20, the tip processing of major axis class work piece has the lewis hole, major axis class work piece hangs on bracing piece 23 through the lewis hole, the stopper 24 that is used for preventing major axis class work piece from droing from bracing piece 23 of the vertical setting of fixedly connected with can be dismantled to the one end that bracing piece 23 deviates from platform sling 20, set up the screw hole 25 that runs through the vertical setting of bracing piece 23 on the bracing piece 23, the bottom fixedly connected with threaded rod 26 that runs through screw hole 25 of stopper 24, fixed connection can be dismantled on bracing piece 23 through nut 27 in the.

The utility model discloses when using: the bottom of the upper suspension rod 1 is in threaded connection with the top of the placing table 9, the upper portion of the lower suspension rod 16 is sleeved in the fixing sleeve 17 and fixed through the pin shaft 19, the center of the annular workpiece penetrates through the upper suspension rod 1 and then is suspended on the placing table 9, if the size of the annular workpiece is large, the connecting plate 15 with the proper length can be selected and connected to the peripheral edge of the placing table 9 through the pin shaft 19, the placing of the annular workpieces with different sizes is met, and the using range is enlarged. The block-shaped workpiece is placed in the rectangular groove 21, the gear workpiece is sleeved outside the fixed rod 22, the long-shaft workpiece is hung on the supporting rod 23 through the hanging hole, the lower part of the limiting block 24 is fixed on the supporting rod 23 through the nut 27, and after assembly, furnace charging operation is carried out. Before charging, manually matching the first hook 5 with a hoisting crane by holding, connecting the third hook 7 with the hoisting crane, connecting the second hook 6 with the hanging ring 2, starting the hoisting crane, placing the hanger in the pit furnace, retracting the hook component 3, and returning the hoisting crane to complete the charging process; when the furnace is discharged, the first hook 5 is held by a hand and manually matched with a hoisting crane to connect the third hook 7 with the hoisting crane and connect the second hook 6 with the hanging ring 2, then the hoisting crane is started to lift the hanger out of the shaft furnace, and the heat treatment discharging process is completed.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a heat treatment hoist for pit furnace which characterized in that: including the last jib of vertical setting, the top fixedly connected with rings of going up the jib, the top of going up the jib is equipped with the lifting hook subassembly that is used for hanging and gets rings, the platform of placing that fixedly connected with is used for placing annular work piece can be dismantled to the bottom of going up the jib, place the connecting plate that the even interval of fixedly connected with set up can be dismantled to platform edge all around, the lower jib of the vertical setting of fixedly connected with can be dismantled to the bottom of placing the platform, the bottom fixedly connected with of lower jib is used for placing the platform of hanging up of massive work piece or gear class work piece, the bracing piece that is used for placing the long axis class work piece that the outside fixedly connected with of platform set up evenly, the bracing piece level sets up around the platform, the stopper that the vertical setting of fixedly connected with that is used for preventing.

2. The heat treatment spreader for the pit furnace according to claim 1, wherein: the lifting hook subassembly includes S type lifting hook and the first couple of fixed connection in one side on S type lifting hook upper portion, S type lifting hook include with rings matched with second couple and with crane matched with third couple, fixedly connected with connecting rod between second couple and the third couple, first couple fixed connection is on the upper portion of connecting rod, and the hook point direction of first couple is the same with the hook point direction of third couple.

3. The heat treatment spreader for the pit furnace according to claim 2, wherein: the top fixedly connected with thread bush in the middle of placing the platform is equipped with the internal thread in the thread bush, goes up the outside of jib bottom and offers the external screw thread with internal thread matched with, goes up the bottom of jib and places threaded connection between the top of platform.

4. The heat treatment spreader for the pit furnace according to claim 2, wherein: place the fixed cover of bottom fixedly connected with in the middle of the platform, fixed cover is lower extreme opening, inside hollow structure, and the upper portion cover of jib is established in fixed cover down, and the mounting hole has all been seted up on the fixed upper portion of sheatheeing in and jib down, and lower jib can be dismantled fixed connection in fixed cover through the round pin axle that passes the mounting hole.

5. The heat treatment spreader for the pit furnace according to claim 2, wherein: the placing table comprises a first bottom plate and a second bottom plate which are perpendicular to each other, the first bottom plate is fixedly connected with the second bottom plate, the first bottom plate and the second bottom plate are enclosed into a cross shape, reinforcing ribs are fixedly connected between the adjacent first bottom plate and the second bottom plate, and connecting plates extending outside the placing table are detachably and fixedly connected with the two ends of the first bottom plate and the two ends of the second bottom plate through hinge pins.

6. The heat treatment spreader for the pit furnace according to claim 2, wherein: set up the screw hole of the vertical setting of running through the bracing piece on the bracing piece, the bottom fixedly connected with of stopper runs through the threaded rod of screw hole, and fixed connection can be dismantled on the bracing piece through the nut in the lower part of threaded rod.

7. The heat treatment spreader for the pit furnace according to claim 2, wherein: the hanging scaffold is circular, a plurality of rectangular grooves which are uniformly arranged at intervals and used for placing blocky workpieces are formed in the hanging scaffold along the circumferential direction, a plurality of fixing rods which are uniformly arranged at intervals and used for fixing gear workpieces are fixedly connected in the hanging scaffold along the circumferential direction, and the gear workpieces are sleeved outside the fixing rods.