CN218951452U

CN218951452U - Trolley furnace with self-sealing high-temperature heat treatment function

Info

Publication number: CN218951452U
Application number: CN202320245060.4U
Authority: CN
Inventors: 任锁春; 沈卫东
Original assignee: Jiangsu Hengli Furnace Industry Co ltd
Current assignee: Jiangsu Hengli Furnace Industry Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-05-02
Anticipated expiration: 2033-02-17

Abstract

The utility model discloses a self-sealing trolley furnace for high-temperature heat treatment, which comprises a furnace body, wherein a movable trolley is arranged on the furnace body; the furnace body is provided with a fixed frame, the fixed frame is provided with an electric hoist, the fixed frame is provided with a furnace door which moves up and down, the furnace door is connected with the electric hoist through a steel cable, the furnace door is provided with a locking rod, two side walls of the fixed frame are respectively provided with a guide plate, the guide plates are provided with inclined first guide grooves, the top ends of the first guide grooves are far away from the furnace door, and the bottom ends of the first guide grooves are close to the furnace door; the beneficial effects of the utility model are as follows: through the guide board of above-mentioned setting, when the furnace gate descends, can make the furnace gate automatic orientation furnace body direction remove, accomplish self-sealing's action to can prevent the furnace body because sealed effect is not good, influence the heat treatment to the work piece, simultaneously because sealed state carries out automatically, can improve the convenience of operation.

Description

Trolley furnace with self-sealing high-temperature heat treatment function

Technical Field

The utility model relates to a trolley furnace with self-sealing heat treatment function.

Background

The trolley furnace is a device for quenching, annealing and ageing high chromium and high manganese steel castings, spheroidal graphite cast iron, rollers, steel balls, 45 steel, stainless steel and other mechanical parts and for heat treatment, and comprises a hearth and a trolley, wherein the trolley can freely enter and exit the hearth.

In the prior art, a furnace door of the trolley furnace is lifted by a lifting device such as an electric hoist, but gaps are easy to exist between the furnace door and the furnace body in the lifting process of the furnace door, heat can overflow in the heat treatment process of the furnace body on a workpiece, and the heat treatment efficiency is affected.

Disclosure of Invention

The utility model aims to provide a self-sealing trolley furnace for high-temperature heat treatment, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the trolley furnace comprises a furnace body, wherein a movable trolley is arranged on the furnace body;

the furnace body is provided with a fixed frame, the fixed frame is provided with an electric hoist, the fixed frame is provided with a furnace door which moves up and down, the furnace door is connected with the electric hoist through a steel cable, the furnace door is provided with a locking rod, two side walls of the fixed frame are respectively provided with a guide plate, the guide plates are provided with inclined first guide grooves, the top ends of the first guide grooves are far away from the furnace door, and the bottom ends of the first guide grooves are close to the furnace door; the locking rod moves in the first guide groove from top to bottom, so that the furnace door is locked on the furnace body.

As the improvement of the technical scheme, two groups of supporting blocks are arranged on the two side walls of the fixed frame, a screw is rotationally connected between the two groups of supporting blocks, and the guide plate is arranged on the screw.

As the improvement of the technical scheme, two groups of movable blocks are arranged on the guide plate, the movable blocks are provided with threaded holes, and the screw rod is in threaded connection with the threaded holes.

As an improvement of the above technical scheme, the guide plate is further provided with a second guide groove, the bottom end of the second guide groove is communicated with the first guide groove, and the top end groove width of the second guide groove is larger than the first guide groove width.

As an improvement of the technical scheme, rollers are arranged at two ends of the locking rod in a rolling manner, and enter the first guide groove from the second guide groove.

As an improvement of the technical scheme, the furnace door is further provided with a locking plate, a plurality of groups of springs are arranged between the locking plate and the furnace door, and the locking rod is arranged on the locking plate.

As the improvement of the technical scheme, the screw is also provided with a connecting rod, the connecting rod and the screw are of an integrated structure, and the connecting rod is provided with a rotary hole.

As an improvement of the technical scheme, a sliding groove is formed in the inner wall of the fixed frame, and a limit groove is formed in the outer wall of the fixed frame;

the furnace door is arranged in the chute in a sliding way, and the movable block is arranged in the limiting groove in a sliding way.

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

when the furnace door is automatically sealed, the electric hoist unwinds the steel rope, so that the furnace door continuously descends under the action of self gravity, and the locking rod is driven to descend, so that the locking rod moves in the first guide groove, and the bottom end of the first guide groove is close to the furnace door due to the inclined arrangement of the first guide groove, so that the locking rod continuously moves towards the furnace door, and the furnace door is pushed to move towards the furnace body, so that automatic sealing treatment is performed;

through the guide board of above-mentioned setting, when the furnace gate descends, can make the furnace gate automatic orientation furnace body direction remove, accomplish self-sealing's action to can prevent the furnace body because sealed effect is not good, influence the heat treatment to the work piece, simultaneously because sealed state carries out automatically, can improve the convenience of operation.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of the present utility model at B in FIG. 1;

FIG. 4 is a schematic view of the structure of the furnace body of the present utility model;

FIG. 5 is a schematic view of the position of the trolley and furnace body of the utility model;

FIG. 6 is an enlarged schematic view of the structure of FIG. 5C according to the present utility model;

fig. 7 is a schematic structural view of the guide plate of the present utility model.

In the figure: 10. a furnace body; 20. a trolley; 30. a fixed frame; 31. an electric hoist; 32. a furnace door; 33. a support block; 34. a limit groove; 35. a chute; 40. a screw; 41. a connecting rod; 42. a rotation hole; 50. a locking plate; 51. a spring; 52. a locking lever; 53. a roller; 60. a guide plate; 61. a first guide groove; 62. a second guide groove; 63. a threaded hole; 64. a movable block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples:

as shown in fig. 1-7, the embodiment provides a self-sealing trolley furnace for high-temperature heat treatment, which comprises a furnace body 10, wherein a movable trolley 20 is arranged on the furnace body 10;

the furnace body 10 is provided with a fixed frame 30, the fixed frame 30 is provided with an electric hoist 31, the fixed frame 30 is provided with a furnace door 32 which moves up and down, the furnace door 32 is connected with the electric hoist 31 through a steel cable, the furnace door 32 is provided with a locking rod 52, both side walls of the fixed frame 30 are provided with guide plates 60, the guide plates 60 are provided with inclined first guide grooves 61, the top ends of the first guide grooves 61 are far away from the furnace door 32, and the bottom ends of the first guide grooves 61 are close to the furnace door 32; the locking lever 52 moves from top to bottom in the first guide groove 61 so that the oven door 32 is locked to the oven body 10.

In this embodiment, when the furnace door 32 is automatically sealed, the electric hoist 31 unwinds the steel cable, so that the furnace door 32 continuously descends under the action of self gravity, and drives the locking rod 52 to descend, so that the locking rod 52 moves in the first guiding groove 61, and due to the inclined arrangement of the first guiding groove 61, the bottom end of the first guiding groove 61 is arranged close to the furnace door 32, so that the locking rod 52 continuously moves towards the furnace door 32, and pushes the furnace door 32 to move towards the furnace body 10, so as to perform automatic sealing treatment;

through the guide plate 60 that sets up above, when furnace gate 32 descends, can make furnace gate 32 automatic orientation furnace body 10 direction remove, accomplish the action of self-sealing to can prevent furnace body 10 because sealed effect is not good, influence the heat treatment to the work piece, simultaneously because sealed state is gone on automatically, can improve the convenience of operation.

In this case, the fixing frame 30 is inverted in shape of a "C".

Specifically, two sets of support blocks 33 are disposed on two side walls of the fixed frame 30, a screw 40 is rotatably connected between the two sets of support blocks 33, and the guide plate 60 is disposed on the screw 40.

In this embodiment, through the screw 40 that sets up, can drive guide board 60 and go up and down to make the journey of locking lever 52 in first guiding groove 61 change, when guide board 60 lifting, locking lever 52 can improve the journey that moves towards furnace body 10 direction on original basis, when guide board 60 descends, locking lever 52 can reduce the journey that moves towards furnace body 10 direction on original basis, so that according to the actual wearing and tearing condition adjustment of guide board 60, thereby guarantee best sealed effect.

Specifically, two sets of movable blocks 64 are disposed on the guide plate 60, the movable blocks 64 are provided with threaded holes 63, and the screw 40 is in threaded connection with the threaded holes 63.

In this embodiment, when the height of the guide plate 60 is adjusted, the screw 40 is rotated, and the movable block 64 is driven to lift by the threaded engagement of the screw 40 and the threaded hole 63, so as to drive the guide plate 60 to lift.

Specifically, the guide plate 60 is further provided with a second guide groove 62, the bottom end of the second guide groove 62 is communicated with the first guide groove 61, and the top end of the second guide groove 62 is wider than the first guide groove 61.

In the present embodiment, the lock lever 52 can be easily and quickly introduced into the first guide groove 61 by the provision of the second guide groove 62.

Specifically, the two ends of the locking lever 52 are provided with rollers 53 in a rolling manner, and the rollers 53 are disposed in the second guide groove 62 from the first guide groove 61.

In this embodiment, the roller 53 is provided to facilitate the rapid introduction of the locking lever 52 into the first guide groove 61, and reduce the friction, thereby preventing the lowering degree of the door 32 from being affected due to the excessive friction, and thus affecting the sealing effect.

Specifically, the door 32 is further provided with a locking plate 50, a plurality of groups of springs 51 are disposed between the locking plate 50 and the door 32, and the locking rod 52 is disposed on the locking plate 50.

In this embodiment, the set plurality of groups of springs 51 can change the original hard contact between the locking lever 52 and the oven door 32 into elastic contact, so that damage to the surface of the oven door 32 and influence on the sealing effect due to excessive movement of the locking lever 52 are prevented in the debugging process.

Specifically, the screw 40 is further provided with a connecting rod 41, the connecting rod 41 and the screw 40 are in an integrally formed structure, and the connecting rod 41 is provided with a rotary hole 42.

In this embodiment, during the rotation of the screw 40, the bolt is inserted into the rotation hole 42, so that the screw 40 can be conveniently driven to rotate.

Specifically, a chute 35 is formed in the inner wall of the fixed frame 30, and a limit groove 34 is formed in the outer wall of the fixed frame 30;

the furnace door 32 is slidably arranged in the chute 35, and the movable block 64 is slidably arranged in the limit groove 34.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a trolley furnace of high temperature heat treatment self sealss which characterized in that: the furnace comprises a furnace body (10), wherein a movable trolley (20) is arranged on the furnace body (10);

the furnace body (10) is provided with a fixed frame (30), the fixed frame (30) is provided with an electric hoist (31), the fixed frame (30) is provided with a furnace door (32) which moves up and down, the furnace door (32) is connected with the electric hoist (31) through a steel cable, the furnace door (32) is provided with a locking rod (52), two side walls of the fixed frame (30) are respectively provided with a guide plate (60), the guide plates (60) are provided with inclined first guide grooves (61), the top ends of the first guide grooves (61) are far away from the furnace door (32), and the bottom ends of the first guide grooves (61) are close to the furnace door (32); the locking rod (52) moves from top to bottom in the first guide groove (61) so that the furnace door (32) is locked on the furnace body (10).

2. A high temperature heat treatment self-sealing trolley furnace according to claim 1, wherein: two groups of supporting blocks (33) are arranged on two side walls of the fixed frame (30), a screw (40) is connected between the two groups of supporting blocks (33) in a rotating mode, and the guide plate (60) is arranged on the screw (40).

3. A high temperature heat treatment self-sealing trolley furnace according to claim 2, wherein: two groups of movable blocks (64) are arranged on the guide plate (60), threaded holes (63) are formed in the movable blocks (64), and the screw rod (40) is in threaded connection with the threaded holes (63).

4. A high temperature heat treatment self-sealing trolley furnace according to claim 1, wherein: the guide plate (60) is further provided with a second guide groove (62), the bottom end of the second guide groove (62) is communicated with the first guide groove (61), and the top end groove width of the second guide groove (62) is larger than the groove width of the first guide groove (61).

5. The self-sealing trolley furnace for high-temperature heat treatment according to claim 4, wherein: two ends of the locking rod (52) are provided with rollers (53) in a rolling manner, and the rollers (53) enter the first guide groove (61) from the second guide groove (62).

6. A high temperature heat treatment self-sealing trolley furnace according to claim 1, wherein: the oven door (32) is further provided with a locking plate (50), a plurality of groups of springs (51) are arranged between the locking plate (50) and the oven door (32), and the locking rod (52) is arranged on the locking plate (50).

7. A high temperature heat treatment self-sealing trolley furnace according to claim 2, wherein: the screw rod (40) is further provided with a connecting rod (41), the connecting rod (41) and the screw rod (40) are of an integrated structure, and the connecting rod (41) is provided with a rotary hole (42).

8. A high temperature heat treatment self-sealing trolley furnace according to claim 3, wherein: a sliding groove (35) is formed in the inner wall of the fixed frame (30), and a limit groove (34) is formed in the outer wall of the fixed frame (30);

the furnace door (32) is arranged in the chute (35) in a sliding way, and the movable block (64) is arranged in the limit groove (34) in a sliding way.