CN112853074B - Tunnel furnace for heat treatment of barrel - Google Patents
Tunnel furnace for heat treatment of barrel Download PDFInfo
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- CN112853074B CN112853074B CN202110017879.0A CN202110017879A CN112853074B CN 112853074 B CN112853074 B CN 112853074B CN 202110017879 A CN202110017879 A CN 202110017879A CN 112853074 B CN112853074 B CN 112853074B
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- rotating shaft
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
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- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention belongs to the technical field of heat treatment equipment, in particular to a tunnel furnace for heat treatment of a barrel part, which comprises a furnace body, a supporting side plate, a first rotating shaft, a first motor and a second motor; according to the invention, the rotating speed of the supporting component is controlled to be lower than that of the spiral blade, so that the rotating speed of the barrel is lower than that of the spiral blade, the component force of the friction force of the spiral blade on the barrel on the axis line enables the barrel to move along the axis line, the barrel moves into the furnace body, the rotating speed of the supporting component is controlled to be equal to that of the spiral blade, the barrel does not move along the axis line, the barrel only rotates, and after the spray gun completes the heating treatment of the barrel, the barrel moves along the axis line direction, and the barrel moves out of the furnace body, so that the heat treatment is completed; in the scheme, the barrel can be automatically moved only by being placed on the equipment, so that multiple times of carrying is avoided, the workload is reduced, and the working efficiency is further improved; and the cylindrical surface is heated uniformly by the rotation of the cylinder, so that the heat treatment quality of the cylinder is improved.
Description
Technical Field
The invention belongs to the technical field of heat treatment equipment, and particularly relates to a tunnel furnace for heat treatment of a barrel.
Background
The heat treatment is a metal heat processing technology for obtaining the required performance by changing the chemical components and tissues of the surface or the inside of a metal material in a solid state through heating, heat preservation and cooling means.
The existing heat treatment process of the barrel part is mainly characterized in that after a worker places the barrel part in a heating device to heat to a set temperature, the barrel part is placed in a heat preservation device to preserve heat, after the heat preservation time is reached, the worker places the barrel part in a cooling device to cool, the heat treatment process of the barrel part is completed manually, the workpiece needs to be carried for many times, the heat treatment degree of each part on the surface of the barrel part is inconsistent, and the heat treatment quality of the barrel part is poor.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a tunnel furnace for heat treatment of a barrel. The invention is mainly used for solving the problems that the heat treatment process in the prior art is completed manually, the workpiece needs to be carried for many times, the heat treatment degree of each part on the surface of the workpiece is inconsistent, and the heat treatment quality is poor.
The technical scheme adopted for solving the technical problems is as follows: the invention provides a tunnel furnace for heat treatment of a barrel, which comprises a furnace body, a supporting side plate, a first rotating shaft, a first motor and a second motor; a spray gun is arranged in the furnace body; the spray gun is fixedly connected with the furnace body; the spray gun is used for heating the barrel; the two sides of the furnace body are symmetrically provided with the supporting side plates; the supporting side plate is fixedly connected with the furnace body through a connecting rod; the middle part of the furnace body is provided with two first rotating shafts; the axes of the two first rotating shafts are on the same horizontal plane; two ends of the first rotating shaft are respectively connected with the two supporting side plates in a rotating way; a support component is axially arranged on the cylindrical surface of one rotary shaft I; the support components are uniformly arranged on the cylindrical surface of the first rotating shaft at intervals along the circumferential direction; the support component is connected with the first rotating shaft; the cylindrical surface of the other first rotating shaft is provided with a spiral blade; the spiral blade is fixedly connected with the first rotating shaft; one end of the first rotating shaft provided with the supporting component is provided with a first belt wheel; the first belt wheel is fixedly connected with the first rotating shaft; the first motor is arranged below the first rotating shaft of the supporting component; the first motor is fixedly connected with the supporting side plate; a second belt wheel is arranged at the end part of the first motor rotating shaft; the second belt wheel is fixedly connected with the rotating shaft of the first motor; the first belt wheel is connected with the second belt wheel through a first belt; one end of the first rotating shaft provided with the helical blade is provided with a third belt wheel; the third belt pulley is fixedly connected with the first rotating shaft; the second motor is arranged below the first rotating shaft provided with the helical blade; the second motor is fixedly connected with the support side plate; a fourth belt wheel is arranged at the end part of the rotating shaft of the second motor; the fourth belt wheel is fixedly connected with the rotating shaft of the first motor; the fourth belt wheel is connected with the third belt wheel through a second belt.
When in operation, the cylinder is placed on the helical blade and the supporting component, the first motor rotates to drive the second belt pulley to rotate, the second belt pulley drives the first belt pulley to rotate through the first belt, the first belt pulley drives the supporting component to rotate through the first rotating shaft, the supporting component generates friction force in the circumferential direction on the cylinder, meanwhile, the second motor rotates to drive the fourth belt pulley to rotate, the fourth belt pulley drives the third belt pulley to rotate through the second belt, the third belt pulley drives the helical blade to rotate through the first rotating shaft, the helical blade generates friction force on the cylinder, the first motor rotates in the same direction, the helical blade rotates in the same direction with the supporting component, and the cylinder rotates under the combined action of the friction force generated by the helical blade on the cylinder and the friction force generated by the supporting component, the rotation speed of the first belt wheel is lower than that of the third belt wheel by controlling the first motor and the second motor, so that the rotation speed of the supporting component is lower than that of the helical blade, the friction force of the supporting component to the barrel is lower than that of the helical blade to the barrel, the rotation speed of the barrel is lower than that of the helical blade, the component force of the friction force of the helical blade to the barrel on the axis line enables the barrel to move along the axis direction of the first rotating shaft, the barrel is further moved into the furnace body, after the barrel completely enters the furnace body, the rotation speed of the first belt wheel is equal to that of the third belt wheel by controlling the first motor and the second motor, the rotation speed of the supporting component is further equal to that of the helical blade, the barrel is further not moved in the axis direction of the first rotating shaft, only rotates, and the spray gun heats the barrel while the barrel rotates, after the heating treatment is finished, the other cylinder part is placed on the spiral blade and the supporting component, after the placement is finished, the rotating speed of the first belt wheel is lower than that of the third belt wheel by controlling the first motor and the second motor, so that the cylinder part moves along the axis direction of the first rotating shaft, the cylinder part in the furnace body moves outwards of the furnace body, and the other cylinder part moves inwards of the furnace body at the same time, the above circulation is repeated, and the heat treatment work of the batch cylinder part is completed; in the prior art, the barrel part is manually completed in the heat treatment process, and the workpiece needs to be carried for many times, and in the technical scheme, the barrel part can be automatically moved only by placing the barrel part on equipment, so that the workpiece is prevented from being carried for many times in the heat treatment process, the workload is further reduced, and the working efficiency is further improved; in the prior art, the heat treatment degree of each part on the surface of the cylinder is inconsistent, the heat treatment quality of the cylinder is poor, and the spiral blade and the supporting component enable the cylinder to rotate when the cylinder is heated in the furnace body, so that the cylindrical surface of the cylinder is uniformly heated, the inconsistent heat treatment degree of each part on the surface of the cylinder is further prevented from being caused by the uneven heating of the cylinder, and the heat treatment quality of the cylinder is further improved.
Preferably, the edge of the spiral blade is provided with a mounting groove; the mounting groove is arranged along the spiral direction of the spiral blade; a rubber strip is arranged in the mounting groove; the rubber strip is fixedly connected with the spiral blade; elastic sheets are uniformly arranged on the rubber strips at intervals in the width direction; the elastic sheet is arranged on the surface of the rubber strip; the elastic sheet is arranged along the spiral direction of the spiral blade.
By arranging the elastic piece, the barrel part bends the elastic piece under the action of gravity, so that the contact area between the barrel part and the elastic piece is increased, the friction force of the elastic piece on the barrel part is increased, the barrel part is stably moved along the first rotating shaft, and the stable work of the tunnel furnace is realized; when one end of the cylinder piece is propped against the elastic piece, the cylinder piece can press and bend the elastic piece, so that the elastic piece is prevented from propping against the cylinder piece, the cylinder piece can stably move in one direction along the first rotating shaft, and stable operation of the tunnel furnace is realized; the elastic sheet avoids the direct contact between the spiral blade and the cylinder, so that the spiral blade is prevented from scraping the surface of the cylinder, the quality of the surface of the cylinder is improved, and the quality of the cylinder is improved.
Preferably, the edge of the spiral blade is provided with a mounting groove; the mounting groove is arranged along the spiral direction of the spiral blade; a rubber strip is arranged in the mounting groove; the rubber strip is fixedly connected with the spiral blade; elastic rods are uniformly arranged on the surface of the rubber strip at intervals; the axis of the elastic rod is vertical to the surface of the rubber strip; the elastic rod is fixedly connected with the rubber strip.
By arranging the elastic rod, the barrel part bends the elastic rod under the action of gravity, so that the contact area between the barrel part and the elastic rod is increased, the friction force of the elastic rod to the barrel part is increased, the barrel part is stably moved along the first rotating shaft, and the stable work of the tunnel furnace is realized; when one end of the cylinder piece is propped against the elastic rod, the cylinder piece can press and bend the elastic rod, so that the elastic rod is prevented from propping against the cylinder piece, the cylinder piece can stably move in one direction along the first rotating shaft, and stable operation of the tunnel furnace is realized; the elastic rod avoids the direct contact between the spiral blade and the cylinder, so that the spiral blade is prevented from scraping the surface of the cylinder, the quality of the surface of the cylinder is improved, and the quality of the cylinder is improved.
Preferably, the support assembly comprises a support profile and a support bar; the two ends of the supporting section bar are fixedly connected with the two ends of the first rotating shaft respectively; a through groove is formed in the surface, close to the first rotating shaft, of the supporting section bar along the axis direction of the first rotating shaft; the supporting strips are uniformly arranged in the through slots at intervals; one end of the supporting bar is fixedly connected with the first rotating shaft; the other end of the supporting bar is abutted against the first rotating shaft.
When the cylinder is heated, the supporting section bar is arranged, so that heat generated by the spray gun can penetrate through the supporting section bar to heat the cylinder, uneven heating of the cylinder caused by heat isolation of the supporting component is prevented, uneven heating of the cylinder is prevented, inconsistent heat treatment degree of each part on the surface of the cylinder is prevented, and heat treatment quality of the cylinder is improved; meanwhile, the support profile is convenient to process, so that the support assembly is convenient to process, and the tunnel furnace is convenient to process; and the support bar produces holding power to the support section bar, and then increases the anti deformability of support section bar, and then prevents that the section bar of buckling of section bar from a section bar, and then prevents that the screw blade from keeping away from to a section bar, and then makes a section bar can follow the steady one-way removal of axis of rotation, and then realizes the steady work of tunnel furnace.
Preferably, the first rotating shaft is connected with the supporting side plate through a tapered roller bearing; the tapered roller bearing is rotationally connected with the supporting side plate; the tapered roller bearing is rotationally connected with the first rotating shaft; limiting blocks are arranged on the side surfaces, close to each other, of the two supporting side plates; the limiting block is fixedly connected with the supporting side plate; the side surface of the limiting block is abutted against the side surface of the tapered roller bearing; annular grooves are formed in two ends of the first rotating shaft; an elastic retainer ring is arranged in the annular groove; the elastic retainer ring is clamped in the annular groove; the side face of the elastic retainer ring is abutted against the side face of the tapered roller bearing.
When the rotation axis is downwards bent under the action of self gravity and drum gravity, the two ends of the rotation axis can be driven to move to one side of the furnace body, the end part of the rotation axis can not be separated from the tapered roller bearing because of the elastic retainer ring, the tapered roller bearing at the two ends is driven to move to one side of the furnace body by the rotation axis, the side surface of the tapered roller bearing is abutted to the limiting block, the supporting side plates at the two ends are driven to move to one side of the furnace body by the rotation axis, the supporting side plates are fixed in position, the supporting side plates can not move, the two ends of the supporting shaft can not move, the rotation axis is prevented from being bent, the stability of the rotation axis is improved, the stability of the helical blades and the supporting component is improved, and the stability of the tunnel furnace is improved.
Preferably, two side surfaces of the furnace body are provided with arc support plates; the axis of the arc supporting plate and the axis of the first rotating shaft are on the same straight line; the arc supporting plate is fixedly connected with the furnace body; the circular arc support plate is used for supporting the helical blade and the support component.
Through setting up the circular arc backup pad, the circular arc backup pad produces holding power to helical blade and supporting component, and then prevents helical blade and supporting component downwarping, and then improves helical blade and supporting component's stability, and then improves the stability of tunnel furnace.
The beneficial effects of the invention are as follows:
1. the invention puts the cylinder on the helical blade and the supporting component, the first motor rotates to drive the second belt pulley to rotate, the second belt pulley drives the first belt pulley to rotate through the first belt, the first belt pulley drives the supporting component to rotate through the first rotating shaft, the supporting component generates friction force in the circumferential direction on the cylinder, the second motor rotates to drive the fourth belt pulley to rotate, the fourth belt pulley drives the third belt pulley to rotate through the second belt, the third belt pulley drives the helical blade to rotate through the first rotating shaft, the helical blade generates friction force on the cylinder, the first motor rotates in the same direction, the helical blade rotates in the same direction with the supporting component, and the cylinder rotates under the combined action of the friction force generated by the helical blade on the cylinder and the friction force generated by the supporting component, the rotation speed of the first belt wheel is lower than that of the third belt wheel by controlling the first motor and the second motor, so that the rotation speed of the supporting component is lower than that of the helical blade, the friction force of the supporting component to the barrel is lower than that of the helical blade to the barrel, the rotation speed of the barrel is lower than that of the helical blade, the component force of the friction force of the helical blade to the barrel on the axis line enables the barrel to move along the axis direction of the first rotating shaft, the barrel is further moved into the furnace body, after the barrel completely enters the furnace body, the rotation speed of the first belt wheel is equal to that of the third belt wheel by controlling the first motor and the second motor, the rotation speed of the supporting component is further equal to that of the helical blade, the barrel is further not moved in the axis direction of the first rotating shaft, only rotates, and the spray gun heats the barrel while the barrel rotates, after the heating treatment is finished, the other cylinder part is placed on the spiral blade and the supporting component, after the placement is finished, the rotating speed of the first belt wheel is lower than that of the third belt wheel by controlling the first motor and the second motor, so that the cylinder part moves along the axis direction of the first rotating shaft, the cylinder part in the furnace body moves outwards of the furnace body, and the other cylinder part moves inwards of the furnace body at the same time, the above circulation is repeated, and the heat treatment work of the batch cylinder part is completed; in the prior art, the barrel part is manually completed in the heat treatment process, and the workpiece needs to be carried for many times, and in the technical scheme, the barrel part can be automatically moved only by placing the barrel part on equipment, so that the workpiece is prevented from being carried for many times in the heat treatment process, the workload is further reduced, and the working efficiency is further improved; in the prior art, the heat treatment degree of each part on the surface of the cylinder is inconsistent, the heat treatment quality of the cylinder is poor, and the spiral blade and the supporting component enable the cylinder to rotate when the cylinder is heated in the furnace body, so that the cylindrical surface of the cylinder is uniformly heated, the inconsistent heat treatment degree of each part on the surface of the cylinder is further prevented from being caused by the uneven heating of the cylinder, and the heat treatment quality of the cylinder is further improved.
2. According to the invention, the elastic piece is arranged, and the barrel part bends the elastic piece under the action of gravity, so that the contact area between the barrel part and the elastic piece is increased, the friction force of the elastic piece on the barrel part is increased, the barrel part is stably moved along the first rotating shaft, and the stable work of the tunnel furnace is realized; when one end of the cylinder piece is propped against the elastic piece, the cylinder piece can press and bend the elastic piece, so that the elastic piece is prevented from propping against the cylinder piece, the cylinder piece can stably move in one direction along the first rotating shaft, and stable operation of the tunnel furnace is realized; the elastic sheet avoids the direct contact between the spiral blade and the cylinder, so that the spiral blade is prevented from scraping the surface of the cylinder, the quality of the surface of the cylinder is improved, and the quality of the cylinder is improved.
3. According to the invention, the elastic rod is arranged, so that the barrel part bends the elastic rod under the action of gravity, the contact area between the barrel part and the elastic rod is increased, the friction force of the elastic rod on the barrel part is increased, the barrel part is stably moved along the first rotating shaft, and the stable operation of the tunnel furnace is realized; when one end of the cylinder piece is propped against the elastic rod, the cylinder piece can press and bend the elastic rod, so that the elastic rod is prevented from propping against the cylinder piece, the cylinder piece can stably move in one direction along the first rotating shaft, and stable operation of the tunnel furnace is realized; the elastic rod avoids the direct contact between the spiral blade and the cylinder, so that the spiral blade is prevented from scraping the surface of the cylinder, the quality of the surface of the cylinder is improved, and the quality of the cylinder is improved.
4. According to the invention, the supporting section bar is arranged, so that heat generated by the spray gun can penetrate through the supporting section bar to heat the barrel part, and uneven heating of the barrel part caused by heat isolation of the supporting component is prevented, and uneven heat treatment degree of each part on the surface of the barrel part caused by uneven heating of the barrel part is prevented, and the heat treatment quality of the barrel part is improved; meanwhile, the support profile is convenient to process, so that the support assembly is convenient to process, and the tunnel furnace is convenient to process; and the support bar produces holding power to the support section bar, and then increases the anti deformability of support section bar, and then prevents that the section bar of buckling of section bar from a section bar, and then prevents that the screw blade from keeping away from to a section bar, and then makes a section bar can follow the steady one-way removal of axis of rotation, and then realizes the steady work of tunnel furnace.
5. According to the invention, when the first rotating shaft is bent downwards under the action of self gravity and drum gravity, the two ends of the first rotating shaft are driven to move to one side of the furnace body, and the end parts of the first rotating shaft cannot be separated from the tapered roller bearings due to the elastic check rings, so that the tapered roller bearings at the two ends are driven to move to one side of the furnace body by the first rotating shaft, the side surfaces of the tapered roller bearings are abutted against the limiting blocks, the supporting side plates at the two ends are driven to move to one side of the furnace body by the first rotating shaft, and the supporting side plates are fixed in position, so that the supporting side plates cannot move, the two ends of the first supporting shaft cannot move, the bending of the first rotating shaft is prevented, the stability of the first rotating shaft is further improved, the stability of the helical blades and the supporting components is further improved, and the stability of the tunnel furnace is further improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of a tunnel furnace according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic diagram of the structure of the motor I in the present invention;
FIG. 4 is a schematic view of the structure of the support assembly of the present invention;
FIG. 5 is a partial enlarged view at B in FIG. 4;
FIG. 6 is a schematic view of the structure of a helical blade according to the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at C;
FIG. 8 is a schematic view of a first rotary shaft according to the present invention;
fig. 9 is a partial enlarged view at D in fig. 8;
in the figure: furnace body 1, spray gun 11, connecting rod 12, circular arc backup pad 13, support curb plate 2, stopper 22, circlip 23, axis of rotation 3, no. one band pulley 31, no. three band pulley 32, no. one motor 4, no. two band pulleys 41, no. one belt 42, no. two motor 5, no. four band pulleys 51, no. two belt 52, supporting component 6, support section bar 61, support bar 62, logical groove 63, helical blade 7, rubber strip 71, elastic sheet 72, rubber strip 73, elastic rod 74, tapered roller bearing 8.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1, 2, 3, 4, 5, 8 and 9, a tunnel furnace for heat treatment of a cylindrical member comprises a furnace body 1, a supporting side plate 2, a first rotating shaft 3, a first motor 4 and a second motor 5; a spray gun 11 is arranged in the furnace body 1; the spray gun 11 is fixedly connected with the furnace body 1; the spray gun 11 is used for heating the barrel; the two sides of the furnace body 1 are symmetrically provided with the supporting side plates 2; the supporting side plate 2 is fixedly connected with the furnace body 1 through a connecting rod 12; two first rotating shafts 3 are arranged in the middle of the furnace body 1; the axes of the two first rotating shafts 3 are on the same horizontal plane; two ends of the first rotating shaft 3 are respectively connected with the two supporting side plates 2 in a rotating way; a support component 6 is axially arranged on the cylindrical surface of one rotary shaft 3; the support assemblies 6 are uniformly arranged on the cylindrical surface of the first rotating shaft 3 at intervals along the circumferential direction; the support component 6 is connected with the first rotating shaft 3; the cylindrical surface of the other first rotating shaft 3 is provided with a helical blade 7; the spiral blade 7 is fixedly connected with the first rotating shaft 3; one end of the first rotating shaft 3 provided with the supporting component 6 is provided with a first belt wheel 31; the first belt wheel 31 is fixedly connected with the first rotating shaft 3; the first motor 4 is arranged below the first rotating shaft 3 provided with the supporting component 6; the motor number one 4 is fixedly connected with the supporting side plate 2; the end part of the rotating shaft of the first motor 4 is provided with a second belt pulley 41; the second belt wheel 41 is fixedly connected with the rotating shaft of the first motor 4; the first belt pulley 31 and the second belt pulley 41 are connected through a first belt 42; one end of the first rotating shaft 3 provided with the helical blade 7 is provided with a third belt wheel 32; the third belt pulley 32 is fixedly connected with the first rotating shaft 3; the second motor 5 is arranged below the first rotating shaft 3 provided with the helical blades 7; the second motor 5 is fixedly connected with the support side plate 2; a fourth belt wheel 51 is arranged at the end part of the rotating shaft of the second motor 5; the fourth belt wheel 51 is fixedly connected with the rotating shaft of the first motor 4; the pulley No. 51 and the pulley No. 32 are connected by a belt No. 52.
When in operation, the cylinder is placed on the helical blade 7 and the supporting component 6, the first motor 4 rotates to drive the second belt pulley 41 to rotate, the second belt pulley 41 drives the first belt pulley 31 to rotate through the first belt 42, the first belt pulley 31 drives the supporting component 6 to rotate through the first rotating shaft 3, the supporting component 6 generates friction force in the circumferential direction on the cylinder, the second motor 5 rotates to drive the fourth belt pulley 51 to rotate, the fourth belt pulley 51 drives the third belt pulley 32 to rotate through the second belt 52, the third belt pulley 32 drives the helical blade 7 to rotate through the first rotating shaft 3, the helical blade 7 generates friction force on the cylinder, the first motor 4 and the second motor 5 rotate in the same direction, the helical blade 7 and the supporting component 6 rotate in the same direction, and the cylinder rotates under the combined action of the friction force generated by the helical blade 7 on the cylinder and the friction force generated by the supporting component 6, the rotation speed of the first belt wheel 31 is lower than that of the third belt wheel 32 by controlling the first motor 4 and the second motor 5, so that the rotation speed of the supporting component 6 is lower than that of the helical blade 7, the friction force of the supporting component 6 to the barrel is lower than that of the helical blade 7 to the barrel, the rotation speed of the barrel is lower than that of the helical blade 7, the component force of the friction force of the helical blade 7 to the barrel on the axis line enables the barrel to move along the axis direction of the first rotating shaft 3, the barrel is further moved into the furnace body 1, after the barrel completely enters the furnace body 1, the rotation speed of the first belt wheel 31 is equal to that of the third belt wheel 32 by controlling the first motor 4 and the second motor 5, so that the rotation speed of the supporting component 6 is equal to that of the helical blade 7, and the barrel is further prevented from moving along the axis direction of the first rotating shaft 3, the barrel is rotated, the spray gun 11 heats the barrel while rotating, the other barrel is placed on the helical blade 7 and the supporting component 6 after the heating is finished, the rotating speed of the first belt wheel 31 is lower than that of the third belt wheel 32 by controlling the first motor 4 and the second motor 5 after the placing is finished, the barrel is further moved along the axis direction of the first rotating shaft 3, the barrel in the furnace body 1 is further moved outside the furnace body 1, the other barrel is simultaneously moved inside the furnace body 1, and the above circulation is repeated, so that the heat treatment work of a batch of barrels is completed; in the prior art, the barrel part is manually completed in the heat treatment process, and the workpiece needs to be carried for many times, and in the technical scheme, the barrel part can be automatically moved only by placing the barrel part on equipment, so that the workpiece is prevented from being carried for many times in the heat treatment process, the workload is further reduced, and the working efficiency is further improved; in the prior art, the heat treatment degree of each part on the surface of the cylinder is inconsistent, the heat treatment quality of the cylinder is poor, and the spiral blade 7 and the supporting component 6 enable the cylinder to rotate when the cylinder is heated in the furnace body 1, so that the cylindrical surface of the cylinder is uniformly heated, the heat treatment degree of each part on the surface of the cylinder is inconsistent due to the uneven heating of the cylinder is further prevented, and the heat treatment quality of the cylinder is further improved.
As shown in fig. 1, 2, 3, 8 and 9, the edge of the spiral blade 7 is provided with a mounting groove; the mounting groove is arranged along the spiral direction of the spiral blade 7; a rubber strip 71 is arranged in the mounting groove; the rubber strip 71 is fixedly connected with the spiral blade 7; the rubber strips 71 are provided with elastic pieces 72 at uniform intervals in the width direction; the elastic sheet 72 is arranged on the surface of the rubber strip 71; the elastic piece 72 is provided along the spiral direction of the spiral blade 7.
By arranging the elastic piece 72, the barrel part bends the elastic piece 72 under the action of gravity, so that the contact area between the barrel part and the elastic piece 72 is increased, the friction force of the elastic piece 72 to the barrel part is increased, the barrel part is stably moved along the first rotating shaft 3, and the stable work of the tunnel furnace is realized; when one end of the barrel part is propped against the elastic piece 72, the barrel part can press and bend the elastic piece 72, so that the elastic piece 72 is prevented from propping against the barrel part, the barrel part can stably move along the first rotating shaft 3 in one direction, and stable operation of the tunnel furnace is realized; the elastic piece 72 prevents the helical blade 7 from directly contacting the barrel, thereby preventing the helical blade 7 from scraping the surface of the barrel, improving the quality of the surface of the barrel, and further improving the quality of the barrel.
As shown in fig. 1, 2, 3, 6 and 7, the edge of the spiral blade 7 is provided with a mounting groove; the mounting groove is arranged along the spiral direction of the spiral blade 7; a rubber strip 73 is arranged in the mounting groove; the rubber strip 73 is fixedly connected with the spiral blade 7; elastic rods 74 are uniformly arranged on the surface of the rubber strip 73 at intervals; the axis of the elastic rod 74 is perpendicular to the surface of the rubber strip 73; the elastic rod 74 is fixedly connected with the rubber strip 73.
By arranging the elastic rod 74, the barrel part bends the elastic rod 74 under the action of gravity, so that the contact area between the barrel part and the elastic rod 74 is increased, the friction force of the elastic rod 74 to the barrel part is increased, the barrel part is stably moved along the first rotating shaft 3, and the stable work of the tunnel furnace is realized; when one end of the cylinder piece is propped against the elastic rod 74, the cylinder piece can press and bend the elastic rod 74, so that the elastic rod 74 is prevented from propping against the cylinder piece, the cylinder piece can stably move in one direction along the first rotating shaft 3, and stable operation of the tunnel furnace is realized; the elastic rod 74 prevents the helical blade 7 from directly contacting the barrel, thereby preventing the helical blade 7 from scraping the surface of the barrel, thereby improving the quality of the surface of the barrel and further improving the quality of the barrel.
As shown in fig. 1 to 5, the support assembly 6 comprises a support profile 61 and a support bar 62; two ends of the supporting section bar 61 are fixedly connected with two ends of the first rotating shaft 3 respectively; a through groove 63 is formed in the surface, close to the first rotating shaft 3, of the supporting section bar 61 along the axis direction of the first rotating shaft 3; the supporting bars 62 are uniformly arranged in the through slots 63 at intervals; one end of the supporting bar 62 is fixedly connected with the first rotating shaft 3; the other end of the supporting bar 62 abuts against the first rotating shaft 3.
When the cylinder is heated, the supporting section bar 61 is arranged, so that heat generated by the spray gun 11 can penetrate through the supporting section bar 61 to heat the cylinder, uneven heating of the cylinder caused by heat interruption of the supporting component 6 is prevented, uneven heating of the cylinder is prevented, inconsistent heat treatment degree of each part on the surface of the cylinder is prevented, and heat treatment quality of the cylinder is improved; meanwhile, the support profile 61 is convenient to process, so that the support assembly 6 is convenient to process, and the tunnel furnace is convenient to process; and the support bar 62 produces holding power to support section bar 61, and then increases the anti deformability of support section bar 61, and then prevents that the barrel from buckling support section bar 61, and then prevents that the barrel from keeping away from helical blade 7, and then makes the barrel can follow the steady one direction removal of axis of rotation 3, and then realizes the steady work of tunnel furnace.
As shown in fig. 8 and 9, the first rotating shaft 3 is connected with the support side plate 2 through a tapered roller bearing 8; the tapered roller bearing 8 is rotationally connected with the supporting side plate 2; the tapered roller bearing 8 is rotationally connected with the first rotating shaft 3; limiting blocks 22 are arranged on the side surfaces of the two supporting side plates 2, which are close to each other; the limiting block 22 is fixedly connected with the supporting side plate 2; the side surface of the limiting block 22 is abutted against the side surface of the tapered roller bearing 8; annular grooves are formed in two ends of the first rotating shaft 3; a circlip 23 is arranged in the annular groove; the elastic retainer ring 23 is clamped in the annular groove; the side surfaces of the circlip 23 abut against the side surfaces of the tapered roller bearing 8.
When the first rotating shaft 3 is bent downwards under the action of self gravity and drum gravity, the two ends of the first rotating shaft 3 are driven to move to one side of the furnace body 1, the end parts of the first rotating shaft 3 cannot be separated from the tapered roller bearings 8 due to the elastic check rings 23, the tapered roller bearings 8 at the two ends are driven to move to one side of the furnace body 1 by the first rotating shaft 3, the side surfaces of the tapered roller bearings 8 are abutted to the limiting blocks 22, the supporting side plates 2 at the two ends are driven to move to one side of the furnace body 1 by the first rotating shaft 3, the supporting side plates 2 are fixed in position, the supporting side plates 2 cannot move, the two ends of the first supporting shaft cannot move, the first rotating shaft 3 is prevented from being bent, the stability of the first rotating shaft 3 is improved, the stability of the helical blades 7 and the supporting components 6 is improved, and the stability of the tunnel furnace is improved.
As shown in fig. 1, 3 and 8, arc supporting plates 13 are arranged on two side surfaces of the furnace body 1; the axis of the arc supporting plate 13 and the axis of the first rotating shaft 3 are on the same straight line; the arc supporting plate 13 is fixedly connected with the furnace body 1; the circular arc support plate 13 is used for supporting the helical blade 7 and the support assembly 6.
Through setting up circular arc backup pad 13, circular arc backup pad 13 produces holding power to helical blade 7 and supporting component 6, and then prevents helical blade 7 and supporting component 6 downwarping, and then improves helical blade 7 and supporting component 6's stability, and then improves the stability of tunnel furnace.
When in operation, the cylinder is placed on the helical blade 7 and the supporting component 6, the first motor 4 rotates to drive the second belt pulley 41 to rotate, the second belt pulley 41 drives the first belt pulley 31 to rotate through the first belt 42, the first belt pulley 31 drives the supporting component 6 to rotate through the first rotating shaft 3, the supporting component 6 generates friction force in the circumferential direction on the cylinder, the second motor 5 rotates to drive the fourth belt pulley 51 to rotate, the fourth belt pulley 51 drives the third belt pulley 32 to rotate through the second belt 52, the third belt pulley 32 drives the helical blade 7 to rotate through the first rotating shaft 3, the helical blade 7 generates friction force on the cylinder, the first motor 4 and the second motor 5 rotate in the same direction, the helical blade 7 and the supporting component 6 rotate in the same direction, and the cylinder rotates under the combined action of the friction force generated by the helical blade 7 on the cylinder and the friction force generated by the supporting component 6, the rotation speed of the first belt wheel 31 is lower than that of the third belt wheel 32 by controlling the first motor 4 and the second motor 5, so that the rotation speed of the supporting component 6 is lower than that of the helical blade 7, the friction force of the supporting component 6 to the barrel is lower than that of the helical blade 7 to the barrel, the rotation speed of the barrel is lower than that of the helical blade 7, the component force of the friction force of the helical blade 7 to the barrel on the axis line enables the barrel to move along the axis direction of the first rotating shaft 3, the barrel is further moved into the furnace body 1, after the barrel completely enters the furnace body 1, the rotation speed of the first belt wheel 31 is equal to that of the third belt wheel 32 by controlling the first motor 4 and the second motor 5, so that the rotation speed of the supporting component 6 is equal to that of the helical blade 7, and the barrel is further prevented from moving along the axis direction of the first rotating shaft 3, the barrel is rotated, the spray gun 11 heats the barrel while rotating, the other barrel is placed on the helical blade 7 and the supporting component 6 after the heating is finished, the rotating speed of the first belt wheel 31 is lower than that of the third belt wheel 32 by controlling the first motor 4 and the second motor 5 after the placing is finished, the barrel is further moved along the axis direction of the first rotating shaft 3, the barrel in the furnace body 1 is further moved outside the furnace body 1, the other barrel is simultaneously moved inside the furnace body 1, and the above circulation is repeated, so that the heat treatment work of a batch of barrels is completed; in the prior art, the barrel part is manually completed in the heat treatment process, and the workpiece needs to be carried for many times, and in the technical scheme, the barrel part can be automatically moved only by placing the barrel part on equipment, so that the workpiece is prevented from being carried for many times in the heat treatment process, the workload is further reduced, and the working efficiency is further improved; in the prior art, the heat treatment degree of each part on the surface of the cylinder is inconsistent, the heat treatment quality of the cylinder is poor, and the spiral blade 7 and the supporting component 6 enable the cylinder to rotate when the cylinder is heated in the furnace body 1, so that the cylindrical surface of the cylinder is uniformly heated, the heat treatment degree of each part on the surface of the cylinder is inconsistent due to the uneven heating of the cylinder is further prevented, and the heat treatment quality of the cylinder is further improved.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (3)
1. A tunnel furnace for heat treatment of a barrel is characterized in that: comprises a furnace body (1), a supporting side plate (2), a first rotating shaft (3), a first motor (4) and a second motor (5); a spray gun (11) is arranged in the furnace body (1); the spray gun (11) is fixedly connected with the furnace body (1); the spray gun (11) is used for heating the barrel; the two sides of the furnace body (1) are symmetrically provided with the supporting side plates (2); the supporting side plate (2) is fixedly connected with the furnace body (1) through a connecting rod (12); two first rotating shafts (3) are arranged in the middle of the furnace body (1); the axes of the two first rotating shafts (3) are on the same horizontal plane; two ends of the first rotating shaft (3) are respectively connected with the two supporting side plates (2) in a rotating way; a support component (6) is axially arranged on the cylindrical surface of one rotary shaft (3); the support assemblies (6) are uniformly arranged on the cylindrical surface of the first rotating shaft (3) at intervals along the circumferential direction; the supporting component (6) is connected with the first rotating shaft (3); the cylindrical surface of the other first rotating shaft (3) is provided with a spiral blade (7); the spiral blade (7) is fixedly connected with the first rotating shaft (3); one end of the first rotating shaft (3) provided with the supporting component (6) is provided with a first belt wheel (31); the first belt wheel (31) is fixedly connected with the first rotating shaft (3); the first motor (4) is arranged below the first rotating shaft (3) provided with the supporting component (6); the first motor (4) is fixedly connected with the supporting side plate (2); a second belt wheel (41) is arranged at the end part of the rotating shaft of the first motor (4); the second belt wheel (41) is fixedly connected with the rotating shaft of the first motor (4); the first belt wheel (31) and the second belt wheel (41) are connected through a first belt (42); one end of the first rotating shaft (3) provided with the helical blade (7) is provided with a third belt wheel (32); the third belt wheel (32) is fixedly connected with the first rotating shaft (3); the second motor (5) is arranged below the first rotating shaft (3) provided with the spiral blade (7); the second motor (5) is fixedly connected with the supporting side plate (2); a fourth belt wheel (51) is arranged at the end part of the rotating shaft of the second motor (5); the fourth belt wheel (51) is fixedly connected with the rotating shaft of the first motor (4); the fourth belt wheel (51) and the third belt wheel (32) are connected through a second belt (52);
the edge of the spiral blade (7) is provided with a mounting groove; the mounting groove is arranged along the spiral direction of the spiral blade (7); a rubber strip (71) is arranged in the mounting groove; the rubber strip (71) is fixedly connected with the spiral blade (7); the rubber strips (71) are uniformly provided with elastic sheets (72) at intervals in the width direction; the elastic sheet (72) is arranged on the surface of the rubber strip (71); the elastic sheet (72) is arranged along the spiral direction of the spiral blade (7);
the support assembly (6) comprises a support profile (61) and a support bar (62); two ends of the supporting section bar (61) are fixedly connected with two ends of the first rotating shaft (3) respectively; a through groove (63) is formed in the surface, close to the first rotating shaft (3), of the supporting section bar (61) along the axial direction of the first rotating shaft (3); the supporting strips (62) are uniformly arranged in the through grooves (63) at intervals; one end of the supporting bar (62) is fixedly connected with the first rotating shaft (3); the other end of the supporting bar (62) is abutted against the first rotating shaft (3).
2. A tunnel furnace for heat treatment of a cylindrical member according to claim 1, wherein: the first rotating shaft (3) is connected with the supporting side plate (2) through a tapered roller bearing (8); the tapered roller bearing (8) is rotationally connected with the supporting side plate (2); the tapered roller bearing (8) is rotationally connected with the first rotating shaft (3); limiting blocks (22) are arranged on the side surfaces, close to each other, of the two supporting side plates (2); the limiting block (22) is fixedly connected with the supporting side plate (2); the side surface of the limiting block (22) is abutted against the side surface of the tapered roller bearing (8); annular grooves are formed in two ends of the first rotating shaft (3); a circlip (23) is arranged in the annular groove; the elastic retainer ring (23) is clamped in the annular groove; the side surface of the circlip (23) is abutted against the side surface of the tapered roller bearing (8).
3. A tunnel furnace for heat treatment of a cylindrical member according to claim 2, wherein: arc support plates (13) are arranged on two side surfaces of the furnace body (1); the axis of the arc supporting plate (13) and the axis of the first rotating shaft (3) are on the same straight line; the arc supporting plate (13) is fixedly connected with the furnace body (1); the arc support plate (13) is used for supporting the helical blade (7) and the support component (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110017879.0A CN112853074B (en) | 2021-01-07 | 2021-01-07 | Tunnel furnace for heat treatment of barrel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110017879.0A CN112853074B (en) | 2021-01-07 | 2021-01-07 | Tunnel furnace for heat treatment of barrel |
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| CN112853074B true CN112853074B (en) | 2023-05-05 |
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| JP4175955B2 (en) * | 2003-06-05 | 2008-11-05 | トピー工業株式会社 | Heat treatment equipment for cylindrical workpiece |
| JP2005199409A (en) * | 2004-01-19 | 2005-07-28 | Citizen Watch Co Ltd | Precise finishing device |
| CN203764519U (en) * | 2014-03-14 | 2014-08-13 | 深圳市腾达工业自动设备有限公司 | Automatic tunnel kiln |
| JP7048201B2 (en) * | 2016-06-24 | 2022-04-05 | Ntn株式会社 | Heat treatment method and heat treatment equipment for rod-shaped workpieces |
| CN108118128A (en) * | 2018-02-01 | 2018-06-05 | 燕山大学 | A kind of spray cooling device of the adjustable combined large shell ring in position |
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Effective date of registration: 20230412 Address after: 438000 No. 46, Yanjiang Road, Huangzhou District, Huanggang City, Hubei Province Applicant after: HUANGGANG HUAYAO ZHONG HUI KILN Co.,Ltd. Address before: 236200 No.45, Nanyuan natural village, Fannan village, Jiangkou Town, Yingshang County, Fuyang City, Anhui Province Applicant before: Wang Weibiao |
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