CN216738459U

CN216738459U - Large vertical controllable atmosphere multipurpose furnace

Info

Publication number: CN216738459U
Application number: CN202123094022.3U
Authority: CN
Inventors: 吴琼
Original assignee: Jiangsu Xinlei Furnace Technology Co ltd
Current assignee: Jiangsu Xinlei Furnace Technology Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-06-14
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a large vertical type controllable atmosphere multipurpose furnace, which relates to the field of heat treatment of multipurpose furnaces, wherein a first heat insulator and a second heat insulator are arranged in the peripheral furnace wall of a multipurpose furnace body, a vacuum environment is realized between the first heat insulator and the second heat insulator, the first heat insulator and the second heat insulator and the peripheral furnace wall are filled with inert gas, the inert gas is stored in the furnace door of the multipurpose furnace body, the multipurpose furnace body is provided with a cooling mechanism and an accommodating mechanism, the multipurpose furnace body is provided with a sliding mechanism, the sliding mechanism is in sliding connection with a controllable angle rotating mechanism, and the controllable angle rotating mechanism is connected with a telescopic mechanism; the purpose of the design is to realize the functions of heat insulation and heat preservation by utilizing the vacuum environment between the first heat insulator and the second heat insulator, inert gas between the first heat insulator and the second heat insulator and the furnace wall at the periphery and inner inert gas of the furnace door respectively, thereby avoiding heat loss, reducing the heating time of the workpiece, and realizing the purposes of recycling waste heat and collecting waste gas and toxic gas.

Description

Large vertical controllable atmosphere multipurpose furnace

Technical Field

The utility model relates to a multi-purpose stove heat treatment field specifically is a large-scale vertical controllable atmosphere multi-purpose stove.

Background

The multipurpose furnace consists of front chamber, heating chamber and front charging platform with material pushing and pulling mechanism, the electric heating radiant tubes are vertically mounted on two sides of the furnace chamber, the furnace bottom is equipped with roller tracks, the material pulling device is mounted behind the furnace, the furnace top is equipped with circulating fan, the front chamber is equipped with quenching support, and the lower portion is equipped with quenching oil tank, the workpiece can be heated and quenched or carburized and quenched in the multipurpose furnace with controllable atmosphere, so that it not only can ensure quality, improve working condition, but also can reduce environmental pollution, can implement mechanized and automatic operation, and is convenient for forming flow production line with other equipment.

When the existing controllable atmosphere multipurpose furnace is used for heat treatment of workpieces, the high temperature in the furnace affects the working environment outside the furnace through heat radiation, the health of workers is affected, in addition, the high temperature in the furnace runs off through a furnace opening and a furnace wall, the time required by heat treatment of the workpieces is prolonged, the atmosphere consumption is also increased, besides, the residual heat of the furnace opening is not properly utilized, and harmful gas in the furnace cannot be harmlessly removed in a short time during rework.

In order to solve the problems, the utility model provides a large vertical type multi-purpose furnace with controllable atmosphere.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale vertical controllable atmosphere multi-purpose furnace, install first insulator and second insulator in the oven around the multi-purpose furnace body, realize the vacuum environment between first insulator and the second insulator, first insulator and second insulator and oven are full of inert gas all around, store inert gas in the multi-purpose furnace body furnace gate, the multi-purpose furnace body is equipped with cooling mechanism and receiving mechanism, the multi-purpose furnace body sets up the slide mechanism, the slide mechanism sliding connection controllable angle rotary mechanism, controllable angle rotary mechanism connects the telescopic mechanism; the purpose of design like this is to utilize the vacuum environment between first insulator and the second insulator, first insulator and second insulator respectively with around the oven between inert gas and the interior inert gas of furnace gate realize thermal-insulated heat retaining effect, when avoiding the heat to scatter and disappear, also reduced the heating time to the work piece, except that this still realizes the reuse of waste heat and the collection purpose of waste gas and poison gas to the problem among the background art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a large vertical type atmosphere-controllable multipurpose furnace comprises a multipurpose furnace body, a first electromagnetic valve and a second electromagnetic valve, wherein the first electromagnetic valve and the second electromagnetic valve are arranged on the multipurpose furnace body, first cavities for installing a first heat insulator and a second heat insulator are formed in the peripheral furnace walls of a front chamber and a rear chamber of the multipurpose furnace body, a vacuum environment is realized between the first heat insulator and the second heat insulator through a vacuum pump arranged on the multipurpose furnace body, inert gases for heat insulation are filled between the first heat insulator and the peripheral furnace walls respectively, a second cavity for storing the inert gases is formed in a furnace door of the multipurpose furnace body, a cooling mechanism and a containing mechanism for collecting waste heat and waste gas are further realized on the multipurpose furnace body through the opening and closing of the first electromagnetic valve and the second electromagnetic valve, the containing mechanism comprises a fan cover, and a sliding mechanism is further arranged on the multipurpose furnace body, the fan cover is characterized in that the sliding mechanism is in sliding connection with the angle-controllable rotating mechanism, the angle-controllable rotating mechanism is fixedly connected with the telescopic mechanism, and the sliding mechanism, the rotating mechanism and the telescopic mechanism are used for adjusting the position of the fan cover.

Further, the cooling mechanism comprises a spiral heat absorbing sheet, a spiral water channel, a clear water inlet and a clear water outlet, the spiral heat absorbing sheet is fixedly installed on the surface of the spiral heat absorbing sheet, the input end of the spiral water channel is communicated with the output end of the clear water inlet, the input end of the clear water inlet penetrates through the cooling box body and is communicated with an external water supply source, the output end of the clear water outlet penetrates through the cooling box body and is communicated with an external hot water supply source, the spiral heat absorbing sheet and the spiral water channel are positioned in the middle of a rectangular inner cavity, the rectangular inner cavity is arranged inside the cooling box body, the cooling box body is fixedly installed at the end part of the multipurpose furnace body, a hole communicated with the input end of a hot gas inlet is formed in one side of the cooling box body, the hole is communicated with the rectangular inner cavity, a hole communicated with the input end of a hot gas outlet is formed in the other side of the cooling box body, and the hole is communicated with the rectangular inner cavity, the input end of the hot air input port is communicated with the output end of the second electromagnetic valve, and the input end of the second electromagnetic valve is communicated with the output end of the air pump.

Further, receiving mechanism includes spacing, fan housing, scalable hose, first solenoid valve, air pump and bin, the fan housing is through spacing fixed mounting at the fixed plate terminal surface, fan housing tip intercommunication scalable hose one end, the scalable hose other end intercommunication air pump input end, the first solenoid valve input of air pump output intercommunication, inside first solenoid valve output intercommunication bin, scalable hose can freely stretch out and draw back length and bending angle, air pump electric connection control panel, control panel fixed mounting is in multi-purpose stove body side.

Furthermore, the first electromagnetic valve and the second electromagnetic valve are electrically connected with the control panel, the first electromagnetic valve is closed, and the second electromagnetic valve is opened and used for absorbing the residual heat of the furnace mouth; the first electromagnetic valve is opened, the second electromagnetic valve is closed, waste gas and toxic gas in the furnace are collected, and the design realizes the flexible switching of the functions of collecting the waste gas and collecting and recycling waste heat.

Furthermore, the sliding mechanism comprises sliding rails, sliding grooves and sliding blocks, the sliding rails are symmetrically arranged on the front chamber end surface of the multipurpose furnace body, the sliding grooves are formed in the side surfaces of the sliding rails, the sliding blocks are connected to the inner surfaces of the sliding grooves in a sliding mode, and the sliding mechanism is electrically connected with the control panel.

Further, controllable angle rotary mechanism includes step motor, pivot, support and supporting shoe, step motor fixed mounting is at the slider terminal surface, step motor output pivot fixed connection pivot one end, the pivot other end rotates linking bridge, support fixed mounting is at the slider terminal surface, pivot middle part fixed mounting has the supporting shoe, step motor electric connection control panel.

Further, telescopic machanism includes pneumatic cylinder and fixed plate, pneumatic cylinder fixed mounting is at the supporting shoe tip, pneumatic cylinder output fixed connection fixed plate, pneumatic cylinder electric connection control panel.

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

1. the utility model provides a large-scale vertical controllable atmosphere multi-purpose furnace, after work piece thermal treatment, open the furnace gate and drive controllable angle rotary mechanism and telescopic machanism through the slip of control panel control slide mechanism middle slide block and move to suitable position simultaneously, rethread step motor drives telescopic machanism and rotates to suitable angle, rethread pneumatic cylinder output stretch out and draw back and drive the fan housing and move to suitable position, start the air pump and absorb the waste heat of fire door, close first solenoid valve simultaneously, open the second solenoid valve, make steam enter the cooling box, steam loses the temperature under the effect of cooling mechanism and finally gets rid of through the steam delivery outlet, the clear water that has the temperature is carried hot water supply source; when the furnace door is opened during rework, the first electromagnetic valve is opened and the second electromagnetic valve is closed simultaneously, toxic gas enters the storage tank in the same method, and therefore, a vacuum environment is pumped between the first heat insulator and the second heat insulator through the vacuum pump.

2. The utility model provides a pair of cooling mechanism in large-scale vertical controllable atmosphere multi-purpose stove, the purpose of design like this has realized the recovery of waste heat and has recycled.

Drawings

FIG. 1 is an overall structure view of a large vertical controlled atmosphere multipurpose furnace of the present invention;

FIG. 2 is an overall sectional view of a large vertical controlled atmosphere multipurpose furnace according to the present invention;

FIG. 3 is a sectional view of a cooling box body in a large vertical controlled atmosphere multipurpose furnace according to the present invention;

FIG. 4 is a view of a cooling mechanism of a large vertical controlled atmosphere multipurpose furnace according to the present invention;

fig. 5 is an enlarged view of the position A in the large vertical controllable atmosphere multipurpose furnace of the utility model.

In the figure: 2. a multipurpose furnace body; 3. a first cavity; 4. a first insulator; 5. a second insulator; 6. a vacuum pump; 7. a slide rail; 8. a chute; 9. a slider; 10. a stepping motor; 11. a rotating shaft; 12. a support; 13. a support block; 14. a hydraulic cylinder; 15. a fixing plate; 16. a limiting frame; 18. a fan housing; 19. a flexible hose; 20. a first solenoid valve; 21. a storage tank; 22. a second solenoid valve; 23. a cooling box body; 24. a hot gas input port; 25. a hot gas outlet; 26. a cooling mechanism; 261. a spiral heat absorbing sheet; 262. a spiral water channel; 263. a clear water inlet; 264. a clear water outlet; 27. a rectangular inner cavity; 28. a control panel; 29. a second cavity; 30. an air pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a large vertical type controlled atmosphere multipurpose furnace comprises a multipurpose furnace body 2, a first electromagnetic valve 20 and a second electromagnetic valve 22 which are arranged on the multipurpose furnace body 2, a first cavity 3 for installing a first heat insulator 4 and a second heat insulator 5 is arranged in the furnace wall around the front chamber and the rear chamber of the multipurpose furnace body 2, a vacuum environment is realized between the first heat insulator 4 and the second heat insulator 5 through a vacuum pump 6 arranged on the multipurpose furnace body 2, inert gases for heat insulation are filled between the first heat insulator 4 and the second heat insulator 5 and the furnace wall around the first heat insulator 4 and the second heat insulator 5 respectively, a second cavity 29 for storing the inert gases is arranged in the furnace door of the multipurpose furnace body 2, a cooling mechanism 26 and a containing mechanism for collecting residual heat and waste gases are realized on the multipurpose furnace body 2 through the opening and closing of the first electromagnetic valve 20 and the second electromagnetic valve 22, the containing mechanism comprises a fan cover 18, the multipurpose furnace body 2 is further provided with a sliding mechanism which is connected with the angle-controllable rotating mechanism in a sliding mode, the angle-controllable rotating mechanism is fixedly connected with a telescopic mechanism, and the sliding mechanism, the rotating mechanism and the telescopic mechanism are used for achieving position adjustment of the fan cover 18.

After the heat treatment of the workpiece is finished, the furnace door is opened, the sliding of a sliding block 9 in the sliding mechanism is controlled by a control panel 28 to drive the angle-controllable rotating mechanism and the telescopic mechanism to move to proper positions, the telescopic mechanism is driven by a stepping motor 10 to rotate to a proper angle, the fan cover 18 is driven by the extension of the output end of the hydraulic cylinder 14 to move to a proper position, the air pump 30 is started to absorb the waste heat of the furnace mouth, the first electromagnetic valve 20 is closed, the second electromagnetic valve 22 is opened to enable hot air to enter the cooling box body 23, the hot air loses temperature under the action of the cooling mechanism 26 and is finally discharged through the hot air outlet 25, and clean water with temperature is conveyed to a hot water supply source; when the furnace door is opened during the rework, the first electromagnetic valve 20 is opened and the second electromagnetic valve 22 is closed simultaneously, the toxic gas enters the storage tank 21 in the same method, and the vacuum environment is pumped between the first heat insulator 4 and the second heat insulator 5 through the vacuum pump 6, so that the vacuum environment between the first heat insulator 4 and the second heat insulator 5 is utilized, the inert gas between the first heat insulator 4 and the second heat insulator 5 and the surrounding furnace wall and the inert gas in the furnace door are utilized to realize the heat insulation and preservation effects, the heating time of the workpiece is reduced while the heat loss is avoided, in addition, the reduction of the heat radiation also protects the health of the workers, and the purposes of recycling the waste heat and collecting the waste gas and the toxic gas are also realized, and the environment is protected.

The temperature reduction mechanism 26 comprises a spiral heat absorption sheet 261, a spiral water channel 262, a clear water inlet 263 and a clear water outlet 264, the spiral heat absorption sheet 261 is fixedly provided with the spiral water channel 262 on the surface, the input end of the spiral water channel 262 is communicated with the output end of the clear water inlet 263, the input end of the clear water inlet 263 passes through the temperature reduction box body 23 and is communicated with an external water supply source, the output end of the spiral water channel 262 is communicated with the input end of the clear water outlet 264, the output end of the clear water outlet 264 passes through the temperature reduction box body 23 and is communicated with an external hot water supply source, the spiral heat absorption sheet 261 and the spiral water channel 262 are positioned in the middle of the rectangular inner cavity 27, the rectangular inner cavity 27 is arranged in the temperature reduction box body 23, the temperature reduction box body 23 is fixedly arranged at the end part of the multipurpose furnace body 2, one side of the temperature reduction box body 23 is provided with a hole communicated with the input end of a hot air input port 24, the hole is communicated with the rectangular inner cavity 27, the other side of the temperature reduction box body 23 is provided with a hole communicated with an input port 25, the hot air output port, the rectangular inner cavity 27, the input end of the hot gas input port 24 is communicated with the output end of the second electromagnetic valve 22, and the input end of the second electromagnetic valve 22 is communicated with the output end of the air pump 30, so that the purpose of recycling waste heat is realized.

Storage mechanism includes spacing 16, fan housing 18, scalable hose 19, first solenoid valve 20, air pump 30 and storage box 21, fan housing 18 is through spacing 16 fixed mounting at 15 terminal surfaces of fixed plate, 18 tip intercommunication scalable hose 19 one end of fan housing, the scalable hose 19 other end intercommunication air pump 30 input, the first solenoid valve 20 input of air pump 30 output intercommunication, inside the storage box 21 of first solenoid valve 20 output intercommunication, scalable hose 19 can freely stretch out and draw back length and bend angle, air pump 30 electric connection control panel 28, control panel 28 fixed mounting is in multi-purpose stove body 2 sides, design like this guarantees waste gas and poison gas can not discharge in the air.

The first electromagnetic valve 20 and the second electromagnetic valve 22 are electrically connected with a control panel 28, the first electromagnetic valve 20 is closed, and the second electromagnetic valve 22 is opened for absorbing the residual heat of the furnace mouth; the first electromagnetic valve 20 is opened, and the second electromagnetic valve 22 is closed, so that the waste gas and the toxic gas in the furnace can be collected, and the design realizes the flexible switching of the functions of collecting the waste gas and collecting and recycling the waste heat.

The sliding mechanism comprises a sliding rail 7, a sliding groove 8 and a sliding block 9, the sliding rail 7 is symmetrically arranged on the front chamber end face of the multipurpose furnace body 2, the sliding groove 8 is formed in the side face of the sliding rail 7, the sliding block 9 is connected to the inner surface of the sliding groove 8 in a sliding mode, and the sliding mechanism is electrically connected with the control panel 28.

Controllable angle rotary mechanism includes step motor 10, pivot 11, support 12 and supporting shoe 13, step motor 10 fixed mounting is at slider 9 terminal surface, 11 one ends of 11 fixed connection pivot of step motor 10 output pivot, 11 other ends of pivot rotate linking bridge 12, support 12 fixed mounting is at slider 9 terminal surface, 11 middle part fixed mounting in pivot has supporting shoe 13, step motor 10 electric connection control panel 28, the convenient collection to the waste gas and the heat of fire door of design like this.

The telescopic mechanism comprises a hydraulic cylinder 14 and a fixing plate 15, the hydraulic cylinder 14 is fixedly installed at the end part of the supporting block 13, the output end of the hydraulic cylinder 14 is fixedly connected with the fixing plate 15, and the hydraulic cylinder 14 is electrically connected with a control panel 28, so that the design ensures that the subsequent processes are smoothly carried out.

In summary, the following steps: after the heat treatment of the workpiece is finished, the furnace door is opened, the sliding of a sliding block 9 in the sliding mechanism is controlled by a control panel 28 to drive the angle-controllable rotating mechanism and the telescopic mechanism to move to proper positions, the telescopic mechanism is driven by a stepping motor 10 to rotate to a proper angle, the fan cover 18 is driven by the extension of the output end of the hydraulic cylinder 14 to move to a proper position, the air pump 30 is started to absorb the waste heat of the furnace mouth, the first electromagnetic valve 20 is closed, the second electromagnetic valve 22 is opened to enable hot air to enter the cooling box body 23, the hot air loses temperature under the action of the cooling mechanism 26 and is finally discharged through the hot air outlet 25, and clean water with temperature is conveyed to a hot water supply source; when the furnace door is opened during the rework, the first electromagnetic valve 20 is opened and the second electromagnetic valve 22 is closed simultaneously, the toxic gas enters the storage tank 21 in the same method, and the vacuum environment is pumped between the first heat insulator 4 and the second heat insulator 5 through the vacuum pump 6, so that the vacuum environment between the first heat insulator 4 and the second heat insulator 5 is utilized, the inert gas between the first heat insulator 4 and the second heat insulator 5 and the surrounding furnace wall and the inert gas in the furnace door are utilized to realize the heat insulation and preservation effects, the heating time of the workpiece is reduced while the heat loss is avoided, in addition, the reduction of the heat radiation also protects the health of the workers, and the purposes of recycling the waste heat and collecting the waste gas and the toxic gas are also realized, and the environment is protected.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a large-scale vertical controllable atmosphere multi-purpose furnace, includes multi-purpose furnace body (2) and sets up first solenoid valve (20) and second solenoid valve (22) on multi-purpose furnace body (2), its characterized in that: the multipurpose furnace comprises a multipurpose furnace body (2), wherein first cavities (3) for mounting a first heat insulator (4) and a second heat insulator (5) are formed in the wall of the periphery of a front chamber and a rear chamber of the multipurpose furnace body (2), a vacuum environment is realized between the first heat insulator (4) and the second heat insulator (5) through a vacuum pump (6) arranged on the multipurpose furnace body (2), inert gases for heat insulation are filled between the first heat insulator (4) and the wall of the periphery of the second heat insulator (5) respectively, a second cavity (29) for storing the inert gases is formed in a furnace door of the multipurpose furnace body (2), a temperature reduction mechanism (26) and a storage mechanism for collecting waste heat and waste gas are realized through the opening and closing of a first electromagnetic valve (20) and a second electromagnetic valve (22) on the multipurpose furnace body (2), the storage mechanism comprises a fan cover (18), and a sliding mechanism is further arranged on the multipurpose furnace body (2), the sliding mechanism is connected with the angle-controllable rotating mechanism in a sliding mode, the angle-controllable rotating mechanism is fixedly connected with the telescopic mechanism, and the sliding mechanism, the rotating mechanism and the telescopic mechanism are used for achieving position adjustment of the fan cover (18).

2. The large vertical controlled atmosphere multi-purpose furnace of claim 1, wherein: the temperature reduction mechanism (26) comprises a spiral heat absorption sheet (261), a spiral water channel (262), a clear water inlet (263) and a clear water outlet (264), the surface of the spiral heat absorption sheet (261) is fixedly provided with the spiral water channel (262), the input end of the spiral water channel (262) is communicated with the output end of the clear water inlet (263), the input end of the clear water inlet (263) penetrates through the temperature reduction box body (23) and is communicated with an external water supply source, the output end of the spiral water channel (262) is communicated with the input end of the clear water outlet (264), the output end of the clear water outlet (264) penetrates through the temperature reduction box body (23) and is communicated with the external hot water supply source, the spiral heat absorption sheet (261) and the spiral water channel (262) are positioned in the middle of a rectangular inner cavity (27), the rectangular inner cavity (27) is arranged in the temperature reduction box body (23), and the temperature reduction box body (23) is fixedly arranged at the end part of the multipurpose furnace body (2), the hole of intercommunication steam input port (24) input is seted up to cooling box (23) one side, hole intercommunication rectangle inner chamber (27), the hole of intercommunication steam delivery outlet (25) input is seted up to cooling box (23) opposite side, hole intercommunication rectangle inner chamber (27), steam input port (24) input intercommunication second solenoid valve (22) output, second solenoid valve (22) input intercommunication air pump (30) output.

3. The large vertical controlled atmosphere multi-purpose furnace of claim 1, wherein: receiving mechanism includes spacing (16), fan housing (18), scalable hose (19), first solenoid valve (20), air pump (30) and bin (21), fan housing (18) are through spacing (16) fixed mounting at fixed plate (15) terminal surface, fan housing (18) tip intercommunication scalable hose (19) one end, scalable hose (19) other end intercommunication air pump (30) input, air pump (30) output intercommunication first solenoid valve (20) input, inside first solenoid valve (20) output intercommunication bin (21), scalable hose (19) length and bending angle that can freely stretch out and draw back, air pump (30) electric connection control panel (28), control panel (28) fixed mounting is in multi-purpose stove body (2) side.

4. The large vertical controlled atmosphere multi-purpose furnace of claim 1, wherein: the first electromagnetic valve (20) and the second electromagnetic valve (22) are electrically connected with a control panel (28), the first electromagnetic valve (20) is closed, and the second electromagnetic valve (22) is opened and is used for absorbing the residual heat of the furnace mouth; the first electromagnetic valve (20) is opened, and the second electromagnetic valve (22) is closed, so that the waste gas and the toxic gas in the furnace can be collected, and the functions of flexibly switching and collecting the waste gas and collecting and recycling the waste heat are realized.

5. The large vertical controlled atmosphere multi-purpose furnace of claim 1, wherein: the sliding mechanism comprises a sliding rail (7), a sliding groove (8) and a sliding block (9), the sliding rail (7) is symmetrically installed on the front chamber end face of the multipurpose furnace body (2), the sliding groove (8) is formed in the side face of the sliding rail (7), the sliding block (9) is connected to the inner surface of the sliding groove (8) in a sliding mode, and the sliding mechanism is electrically connected with the control panel (28).

6. The large vertical controlled atmosphere multi-purpose furnace of claim 1, wherein: controllable angle rotary mechanism includes step motor (10), pivot (11), support (12) and supporting shoe (13), step motor (10) fixed mounting is at slider (9) terminal surface, step motor (10) output pivot (11) fixed connection pivot (11) one end, pivot (11) other end rotates linking bridge (12), support (12) fixed mounting is at slider (9) terminal surface, pivot (11) middle part fixed mounting has supporting shoe (13), step motor (10) electric connection control panel (28).

7. The large vertical controlled atmosphere multi-purpose furnace of claim 1, wherein: the telescopic mechanism comprises a hydraulic cylinder (14) and a fixing plate (15), the hydraulic cylinder (14) is fixedly installed at the end part of the supporting block (13), the output end of the hydraulic cylinder (14) is fixedly connected with the fixing plate (15), and the hydraulic cylinder (14) is electrically connected with the control panel (28).