CN213238425U

CN213238425U - Electric heating furnace

Info

Publication number: CN213238425U
Application number: CN202021786688.8U
Authority: CN
Inventors: 孙治荣
Original assignee: Shaanxi Sanyuan Zhengtai Forging Co ltd
Current assignee: Shaanxi Sanyuan Zhengtai Forging Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-05-18
Anticipated expiration: 2030-08-24

Abstract

The application relates to heat treatment equipment, in particular to an electric heating furnace. It includes furnace body, furnace gate and platform truck, the furnace gate sets up on the furnace body, be provided with the heating chamber in the furnace body, the platform truck sets up in the heating intracavity, its characterized in that: trolley upper portion is provided with heat conduction mechanism, heat conduction mechanism includes the heat-conducting piece and is used for carrying out spacing subassembly to the heat-conducting piece, still be provided with two sets of elevating system and two sets of support columns in the furnace body, it is two sets of the support column correspondence sets up on the both sides wall of heating chamber length direction, and is two sets of elevating system corresponds the setting with two sets of support columns, and is a set of elevating system is connected with the gyro wheel with a set of support column one-to-one, the gyro wheel is worn to establish in the support column. This application has the life's that combines reasonable in design, extension platform truck effect.

Description

Electric heating furnace

Technical Field

The application relates to heat treatment equipment, in particular to an electric heating furnace.

Background

An electric heating furnace is a heating device for heating materials or workpieces (generally metal) to a forging temperature in the metallurgical industry, and realizes heating of the workpieces by using electric current to generate heat through an electric heating element arranged in a hearth and transferring the heat to the workpieces under the action of radiation or convection.

Patent document of current grant bulletin No. CN102679733B discloses a high temperature resistance heating furnace, including furnace body, furnace gate and heating device, the furnace body comprises the stove outer covering of its side and the bell of top surface, and the furnace body internal surface is equipped with high temperature resistant furnace lining, and the furnace body inner chamber constitutes furnace, and furnace side or the higher authority are equipped with heating device, a side of furnace body is equipped with the furnace gate, and the furnace gate passes through elevating system and the open-close type swing joint of furnace body formation vertical direction, and the furnace body is equipped with furnace face board, characterized by with the contact surface of furnace gate: the upper and lower ends of the two side surfaces of the furnace door are respectively provided with an upper roller and a lower roller, and the furnace panel of the furnace body is correspondingly provided with a guide device, so that when the furnace door descends to a position close to the closed position of the furnace body along the lifting guide rail, the guide device is contacted with the upper and lower rollers of the furnace door, and the furnace door is pushed to form tight sealing connection with the furnace panel by the aid of the gravity of the furnace door; the guide device comprises a guide plate, the guide plate is connected and fixed with the furnace body or the furnace panel, and the guide plate extends outwards and forms an included angle smaller than 90 degrees with the furnace panel; a furnace panel of the furnace body forms a certain inclination angle with the vertical direction, so that when the furnace door is lifted upwards through the lifting mechanism, a certain gap can be formed between the furnace door and the furnace panel under the action of the gravity of the furnace door; the upper end surface of the furnace panel protrudes outwards, so that an included angle smaller than 90 degrees is formed between the furnace panel and the horizontal plane; the furnace door is composed of a furnace door shell and a furnace door furnace lining, the furnace door furnace lining is arranged on the inner surface of the furnace door shell, a furnace door lifting appliance is arranged on the upper end surface of the furnace door shell, and the furnace door lifting appliance is connected with the lifting mechanism through a chain or a steel wire rope; the rollers on the two side surfaces of the oven door are connected and fixed with the oven door shell through bolt adjusting plates, so that the rollers can move and be fixed relative to the plane of the oven door; the furnace door shell is formed by welding steel, a plurality of split type reinforced heat-resistant steel blocks are welded on the outer surface of the lower edge of the furnace door shell, a certain distance is reserved between every two adjacent heat-resistant steel blocks, the heating furnace is also provided with a trolley which can enter and exit a hearth, rollers and a track are arranged below the trolley, a sealing groove is arranged between the side surface of the trolley and the hearth, and high-temperature-resistant sealing filler is arranged in the sealing groove; the trolley is connected with the trolley driving mechanism, and the trolley driving mechanism can drive the trolley to enter and exit the hearth; the heating furnace is also provided with a trolley capable of entering and exiting the hearth, a furnace bottom plate is arranged on the trolley, rollers and a track are arranged below the trolley, a sealing groove is arranged between the side surface of the trolley and the hearth, and high-temperature-resistant sealing filler is arranged in the sealing groove; the trolley is connected with the trolley driving mechanism, and the trolley driving mechanism can drive the trolley to enter and exit the hearth.

The principle of the technical scheme is as follows: the furnace door moves up and down along the lifting guide rail of the guide device under the action of the lifting mechanism to close and open the furnace body, the gravity of the furnace door pushes the furnace door to form a tight sealing effect with the furnace panel, and the trolley bears a workpiece to be heated and enters and exits the furnace chamber under the action of the trolley driving mechanism.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: the work piece is placed on the stove bottom plate on platform truck upper portion, and the platform truck passes through gyro wheel and the guide rail business turn over furnace of platform truck lower part, and in the heating process, the platform truck is in under high temperature state, and the stove bottom plate on platform truck upper portion and work piece direct contact, the gyro wheel of platform truck lower part bear the whole gravity of work piece, lead to the platform truck life shorter.

SUMMERY OF THE UTILITY MODEL

In order to prolong the service life of the trolley, the application provides an electric heating furnace.

The application provides an electric heating furnace adopts following technical scheme:

the utility model provides an electric heating furnace, includes furnace body, furnace gate and platform truck, the furnace gate sets up on the furnace body, be provided with the heating chamber in the furnace body, the platform truck sets up in the heating chamber, its characterized in that: trolley upper portion is provided with heat conduction mechanism, heat conduction mechanism includes the heat-conducting piece and is used for carrying out spacing subassembly to the heat-conducting piece, still be provided with two sets of elevating system and two sets of support columns in the furnace body, it is two sets of the support column correspondence sets up on the both sides wall of heating chamber length direction, and is two sets of elevating system corresponds the setting with two sets of support columns, and is a set of elevating system is connected with the gyro wheel with a set of support column one-to-one, the gyro wheel is worn to establish in the support column.

By adopting the technical scheme, the heat conducting piece is laid on the trolley, the workpiece is placed on the trolley and is in contact with the heat conducting piece, when the trolley enters and exits the heating cavity, the upper surface of the roller is higher than the upper surface of the supporting column under the action of the lifting mechanism, the roller is in contact with the trolley, and the trolley is pushed into or pulled out of the heating cavity by using external equipment; when the trolley is in the heating cavity, under the action of the lifting mechanism, the height of the upper surface of the roller is lower than that of the upper surface of the support column, the trolley is in contact with the support column, and the support column supports the trolley, so that the roller is not in contact with the bottom wall of the heating cavity, and the deformation of the roller due to the dual actions of the trolley and the quality of a workpiece and a high-temperature environment is reduced; the furnace plate on the upper portion of the trolley can slowly crack in the long-term use process, so that the workpiece is heated unevenly, the condition that the workpiece is heated unevenly is improved to a certain extent by the heat conducting piece, the replacement frequency of the furnace plate on the upper portion of the trolley is reduced, and the service life of the trolley is prolonged to a certain extent.

Preferably, the heat conducting member is made of refractory bricks, a plurality of refractory bricks are arranged, and the refractory bricks are arranged on the trolley in a mutual contact manner.

By adopting the technical scheme, the heat conducting piece is made of the refractory bricks, the materials are easy to obtain, and the production cost of enterprises is reduced to a certain extent.

Preferably, the limiting assembly comprises two first limiting plates and a second limiting plate, the first limiting plates are arranged on two sides of the trolley along the length direction of the trolley, and the second limiting plates are movably arranged between the two second limiting plates.

Through adopting above-mentioned technical scheme, set up limiting plate one and limiting plate two for spacing to resistant firebrick, reduce resistant firebrick and remove on the platform truck, and reduce the residue of resistant firebrick to a certain extent and fall into the heating intracavity.

Preferably, the limiting plate I is provided with fixing rods vertically along the length of the limiting plate I at intervals, fixing holes are formed in the trolley corresponding to the fixing rods, and the lower portions of the fixing rods are inserted into the fixing holes.

Through adopting above-mentioned technical scheme, set up fixed orifices and dead lever for install two limiting plates one on the platform truck, simple structure, convenient to install and dismantle.

Preferably, the two first limiting plates are correspondingly provided with first open grooves with upward openings, the two second limiting plates are provided with second open grooves with downward openings along the two ends of the length direction of the second limiting plates, and the second open grooves are clamped with the first open grooves.

Through adopting above-mentioned technical scheme, set up open slot one and open slot two for clamp limiting plate two on two limiting blocks one, the installation and the dismantlement of limiting plate two of being convenient for, and limiting plate two-way passes through open slot two and slides on limiting plate one, can clear up remaining resistant firebrick's residue on the platform truck.

Preferably, a set of elevating system includes lifter plate, support frame and hydro-cylinder, the hydro-cylinder is provided with two at least, the drive end and the lifter plate of hydro-cylinder are connected, the lifter plate level sets up, the support frame sets up on the lifter plate and along lifter plate length direction and support column one-to-one, the gyro wheel one-to-one sets up on the support frame.

Through adopting above-mentioned technical scheme, the lifter plate reciprocates under the effect of hydro-cylinder, and the lifter plate moves the support frame and reciprocates, and then drives the gyro wheel of installing on the support frame and reciprocate for the relative height between adjustment gyro wheel upper surface and the support column upper surface, and then the platform truck of being convenient for passes in and out the heating chamber or supports the installation platform truck.

Preferably, the supporting column is provided with a through groove along the vertical direction, and the roller moves up and down in the through groove through the lifting mechanism.

Through adopting above-mentioned technical scheme, set up logical groove, the gyro wheel of being convenient for reciprocates in vertical direction under elevating system's effect, the upper surface that is higher than the support column upper surface as the gyro wheel, platform truck and gyro wheel contact, be less than the support column upper surface when the gyro wheel lower surface, the support column contacts with the platform truck, play the supporting role to the platform truck, when reducing the work piece and heating the intracavity, because of the combined action of the quality and the high temperature of platform truck and work piece, the deformation that leads to the gyro wheel to take place has prolonged the life of platform truck to a certain extent.

Preferably, a guide wheel is further arranged in the heating cavity close to the oven door, and the height of the upper surface of the guide wheel is lower than that of the upper surface of the support column.

Through adopting above-mentioned technical scheme, set up the leading wheel, be convenient for with leading-in heating intracavity of platform truck, improve work efficiency to a certain extent.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the furnace body is arranged, the lifting mechanism and the supporting columns are arranged in the furnace body, the lifting mechanism is connected with the rollers, the rollers are arranged in the supporting columns in a penetrating mode, when the furnace body is used, the upper surfaces of the rollers are higher than the upper surfaces of the supporting columns under the action of the lifting mechanism, the trolley enters and exits the furnace body under the action of the rollers, the upper surfaces of the rollers are lower than the upper surfaces of the supporting columns, the supporting columns support the trolley, and deformation of the rollers in the heating process is reduced; still be provided with the platform truck in the furnace body, set up heat conduction mechanism on the platform truck, heat conduction mechanism includes the heat-conducting piece and is used for carrying out spacing subassembly to the heat-conducting piece, and in long-term use, the furnace plate on platform truck upper portion can slowly appear the crack, makes the work piece inhomogeneous when being heated, and the heat-conducting piece has improved the inhomogeneous condition that the work piece is heated to a certain extent, reduces the furnace plate change frequency of platform truck, has improved the life of platform truck to a certain extent.

2. Be provided with spacing subassembly in this application, spacing subassembly includes two limiting plates one and a limiting plate two, and two limiting plates one set up in the platform truck both sides along stove board length direction, and the limiting plate clamps between two limiting plates one, and when laying resistant firebrick, limiting plate one and limiting plate two can carry on spacingly to resistant firebrick, reduce a plurality of resistant firebricks and move on the platform truck because of placing the work piece.

3. The lifting mechanism comprises a lifting plate, a support frame and an oil cylinder, wherein the lifting plate is horizontally arranged and is connected with the driving end of the oil cylinder, the support frame is arranged on the lifting plate, and a roller is arranged on the support frame; the lifter plate reciprocates under the effect of hydro-cylinder, and the lifter plate moves the support frame and reciprocates, and then drives the gyro wheel of installing on the support frame and reciprocate for the relative height between adjustment gyro wheel upper surface and the support column upper surface, and then the platform truck business turn over heating chamber of being convenient for or support installation platform truck.

Drawings

FIG. 1 is a schematic view of an electrical heating furnace according to the present application.

FIG. 2 is a schematic view of the internal structure of an electric heating furnace according to the present application.

Description of reference numerals: 1. a furnace body; 2. a furnace door; 3. a heating cavity; 4. a trolley; 5. a limiting component; 51. a first limiting plate; 52. a second limiting plate; 6. fixing the rod; 7. a first open slot; 8. a second open slot; 9. a lifting mechanism; 91. a lifting plate; 92. a support frame; 93. an oil cylinder; 10. a roller; 11. a through groove; 12. a guide wheel; 13. a heat conductive member; 14. and (4) a support column.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses an electric heating furnace. Referring to fig. 1 and 2, the electric heating furnace comprises a furnace body 1, a furnace door 2 and a trolley 4, wherein the furnace body 1 is composed of a furnace shell on the side surface and a furnace cover on the top surface, a high temperature resistant furnace lining is arranged on the inner surface of the furnace body 1, a heating cavity 3 is formed in the inner cavity of the furnace body 1, a heating device is arranged on the side surface or the upper surface of the heating cavity 3, the heating device comprises a heating resistor, the furnace door 2 is arranged on one side surface of the furnace body 1, and the furnace door 2 and the furnace body 1 are movably.

Referring to fig. 1, fig. 2, platform truck 4 sets up in heating chamber 3, 4 upper portions of platform truck are provided with heat conduction mechanism, heat conduction mechanism includes heat-conducting piece 13 and spacing subassembly 5, heat-conducting piece 13 adopts resistant firebrick, resistant firebrick has a plurality ofly, a plurality of resistant firebrick mutually contact flatly spread on 4 upper surfaces of platform truck, spacing subassembly 5 is spacing to resistant firebrick, it moves on platform truck 4 to reduce resistant firebrick, spacing subassembly 5 includes two limiting plates 51 and a limiting plate two 52, two limiting plates 51 correspond along 4 length direction of platform truck and install 4 both sides in platform truck, and have the fixing base along self length interval welding on the limiting plate 51, vertical cartridge hole has been seted up on the fixing base, dead lever 6 has worn to be equipped with in the cartridge hole, the fixed orifices has been seted up to corresponding dead lever 6 on the platform truck 4.

Referring to fig. 1 and 2, a second limiting plate 52 is movably mounted between the first limiting plates 51 along the width direction of the trolley 4, two ends of the first limiting plates 51 along the length direction are provided with first open grooves 7 with upward openings, two ends of the second limiting plates 52 along the length direction are provided with second open grooves 8 with downward openings, the second open grooves 8 and the first open grooves 7 are matched and clamped with each other, so that the trolley is simple in structure and convenient to mount and dismount, and the second limiting plates 52 slide between the first limiting plates 51 through the second open grooves 8 to clean residues of refractory bricks remained on the trolley 4; the trolley 4 is in the long-term use process, the furnace plate on the upper portion of the trolley 4 can be cracked slowly, so that the workpiece is heated unevenly, the condition that the refractory bricks are heated unevenly is improved to a certain extent, the furnace plate replacement frequency on the upper portion of the trolley 4 is reduced, and the service life of the trolley 4 is prolonged to a certain extent.

Referring to fig. 1 and 2, two groups of lifting mechanisms 9 and two groups of supporting columns 14 are further arranged in the furnace body 1, each group of lifting mechanism 9 comprises a lifting plate 91, two supporting frames 92 and 4 oil cylinders 93, at least two oil cylinders 93 are provided, in this embodiment, two oil cylinders 93 are provided, four supporting columns 14 are provided, the lifting plate 91 is horizontally connected with driving end bolts of the two oil cylinders 93, the supporting frames 92 are provided with 4 supporting frames 92, the supporting frames 92 are mounted on the lifting plate 91 through bolts, the supporting frames 92 correspond to the supporting columns 14 one by one along the length direction of the lifting plate 91, the rollers 10 are mounted on the supporting frames 92 through rotating shafts in a one-to-one correspondence manner, the supporting columns 14 are provided with through grooves 11 along the vertical direction, the rollers 10 penetrate through the through grooves 11, and the rollers 10 move up and; the supporting frame 92 is installed on the supporting frame 92 in the heating cavity 3 close to the oven door 2 through bolts, the guiding wheel 12 is installed on the supporting frame 92 in a rotating mode, the height of the upper surface of the guiding wheel 12 is lower than that of the upper surface of the supporting column 14, the guiding wheel 12 facilitates rapid guiding of the trolley 4 into the heating cavity 3, and working efficiency is improved to a certain extent.

When the trolley 4 enters and exits the heating cavity 3, the lifting plate 91 moves upwards under the action of the oil cylinder 93, the lifting plate 91 drives the supporting frame 92 to move upwards, and further drives the roller 10 to move upwards in the through groove 11, so that the upper surface of the roller 10 is higher than that of the supporting column 14, the roller 10 is in contact with the trolley 4, the trolley 4 is connected with external equipment to conveniently enter and exit the heating cavity 3, and the external equipment adopts a loading and unloading machine; when in heating chamber 3, lifter plate 91 moves down under the effect of hydro-cylinder 93, and lifter plate 91 drives support frame 92 and moves down, and then drives gyro wheel 10 and move down in logical groove 11, makes the upper surface of gyro wheel 10 be less than support column 14 upper surface, and platform truck 4 and support column 14 contact, and support column 14 supports platform truck 4.

The implementation principle of the electric heating furnace in the embodiment of the application is as follows: laying refractory bricks on an upper trolley 4, when the trolley 4 enters or exits the heating cavity 3, under the action of a lifting mechanism 9, the upper surface of a roller 10 is higher than the upper surface of a support column 14, the roller 10 is in contact with the trolley 4, and the trolley 4 is pushed into or pulled out of the heating cavity 3 by a loading and discharging machine; when the trolley 4 is in the heating cavity 3, under the action of the lifting mechanism 9, the height of the upper surface of the roller 10 is lower than that of the upper surface of the support column 14, the trolley 4 is in contact with the support column 14, and the support column 14 supports the trolley 4, so that the roller 10 is not in contact with the bottom wall of the heating cavity 3, and the deformation of the roller 10 caused by the dual actions of the quality of the trolley 4 and a workpiece and a high-temperature environment is reduced; in the long-term use process, the furnace plate on the upper part of the trolley 4 can slowly crack, so that the workpiece is heated unevenly, the condition that the workpiece is heated unevenly is improved to a certain extent by refractory bricks, the replacement frequency of the furnace plate of the trolley 4 is reduced, and the service life of the trolley 4 is prolonged to a certain extent.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an electric heating furnace, includes furnace body (1), furnace gate (2) and platform truck (4), furnace gate (2) set up on furnace body (1), be provided with in furnace body (1) and heat chamber (3), platform truck (4) set up in heating chamber (3), its characterized in that: trolley (4) upper portion is provided with heat conduction mechanism, heat conduction mechanism includes heat-conducting piece (13) and is used for carrying out spacing subassembly (5) to heat-conducting piece (13), still be provided with two sets of elevating system (9) and two sets of support column (14) in furnace body (1), it is two sets of support column (14) correspond and set up on heating chamber (3) length direction's both sides wall, and are two sets of elevating system (9) correspond the setting with two sets of support column (14), and a set of elevating system (9) are connected with gyro wheel (10) with a set of support column (14) one-to-one, gyro wheel (10) are worn to establish in support column (14).

2. An electric heating furnace according to claim 1, wherein: the heat conducting piece (13) is made of refractory bricks, a plurality of refractory bricks are arranged, and the refractory bricks are arranged on the trolley (4) in a mutual contact mode.

3. An electric heating furnace according to claim 1, wherein: the limiting assembly (5) comprises two first limiting plates (51) and a second limiting plate (52), the first limiting plates (51) are arranged on two sides of the trolley (4) along the length direction of the trolley (4), and the second limiting plates (52) are movably arranged between the two second limiting plates (52).

4. An electric heating furnace according to claim 3, wherein: the trolley is characterized in that fixing rods (6) are vertically arranged on the first limiting plate (51) at intervals along the length of the trolley, fixing holes are formed in the trolley (4) corresponding to the fixing rods (6), and the lower portions of the fixing rods (6) are inserted into the fixing holes.

5. An electric heating furnace according to claim 4, wherein: the two first limiting plates (51) are correspondingly provided with first open grooves (7) with upward openings, the two second limiting plates (52) are provided with second open grooves (8) with downward openings along the two ends of the length direction, and the second open grooves (8) are clamped with the first open grooves (7).

6. An electric heating furnace according to claim 1, wherein: a set of elevating system (9) includes lifter plate (91), support frame (92) and hydro-cylinder (93), hydro-cylinder (93) are provided with two at least, the drive end and lifter plate (91) of hydro-cylinder (93) are connected, lifter plate (91) level sets up, support frame (92) set up on lifter plate (91) and along lifter plate (91) length direction and support column (14) one-to-one, gyro wheel (10) one-to-one sets up on support frame (92).

7. An electric heating furnace according to claim 1, wherein: the supporting column (14) is provided with a through groove (11) in the vertical direction, and the roller (10) moves up and down in the through groove (11) through the lifting mechanism (9).

8. An electric heating furnace according to claim 1, wherein: a guide wheel (12) is further arranged in the heating cavity (3) close to the oven door (2), and the height of the upper surface of the guide wheel (12) is lower than that of the upper surface of the support column (14).