CN112760466A - Quenching furnace for metal thermal forming - Google Patents

Abstract

The invention discloses a quenching furnace for metal thermoforming, which has the technical scheme that the quenching furnace comprises a furnace body, a limiting frame, a control device, a plurality of furnace doors and a linkage mechanism, wherein the furnace body is internally provided with a plurality of quenching cavities, and the control device is used for controlling the furnace doors to close or open the quenching cavities; the limiting frame is arranged outside the furnace body in an enclosing mode and comprises a driving support and a transmission support, the control device comprises a plurality of driving mechanisms and transmission mechanisms connected with the driving mechanisms, the driving mechanisms are arranged on the driving support, the transmission mechanisms are arranged on the transmission support, the driving mechanisms are connected with steering shafts, the driving mechanisms are connected with the transmission mechanisms in the transmission supports on two sides through the steering shafts, any transmission mechanism is further connected with a linkage mechanism, and the linkage mechanism is connected with the transmission mechanisms and the furnace door. The quenching furnace for metal hot forming provided by the invention has the advantages that the opening or closing of the furnace door can be stably controlled, and the work efficiency of quenching workpieces is improved.

Description

Quenching furnace for metal thermal forming

Technical Field

The invention relates to the technical field of casting quenching devices, in particular to a quenching furnace for metal hot forming.

Background

Quenching is the most widely applied work technology method in the heat treatment process of workpieces; quenching is a heat treatment process method which heats a workpiece to be above a critical temperature, keeps the temperature for a certain time, and then cools the workpiece at a cooling speed higher than the critical cooling speed so as to obtain an unbalanced structure mainly comprising martensite; the quenching furnace is a common device for quenching workpieces, is a non-standard electric furnace specially designed according to user requirements and is used for solution heat treatment and aging treatment of large and medium-sized aluminum alloy product parts.

The prior Chinese patent with publication number CN107435091A discloses a horizontal quenching furnace, which comprises a furnace body, an electric heating plate and a thermometer, wherein a furnace chamber is arranged in the furnace body, the left end of the furnace chamber is provided with a taking and placing opening, the taking and placing opening is communicated with the furnace chamber, and a door plate is arranged at the taking and placing opening; the automatic feeding device comprises a left support frame, a right support frame, a left front threaded rod, a left rear threaded rod, a right front threaded rod, a right rear threaded rod, a left front threaded pipe, a left rear threaded pipe, a right front threaded pipe and a right rear threaded pipe, wherein gears are respectively arranged on the inner sides of the top end and the bottom end of the left support frame and the inner sides of the top end and the bottom end of the right support frame; the intelligent display is further included, and the two groups of thyristors and the electric connecting wire are further included.

When the quenching furnace is used for quenching a workpiece, the furnace chamber is sealed through the furnace door, when the workpiece in the furnace chamber needs to be taken out, the furnace chamber is opened through the movement of the conveyor belt driving the furnace door, because the temperature in the furnace chamber is very high, the furnace door and the conveyor belt can deform at high temperature, the stability of the conveyor belt driving the furnace door to move is influenced, the furnace chamber cannot be completely closed when the furnace door is closed, even the conveyor belt can be difficult to drive the furnace door to open and close, and the work efficiency when the workpiece is quenched is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a quenching furnace for metal hot forming, which can stably control the opening or closing of a furnace door and improve the work efficiency of quenching workpieces.

In order to achieve the purpose, the invention provides the following technical scheme:

a quenching furnace for metal thermoforming comprises a furnace body, a limiting frame, a control device, a plurality of furnace doors and a linkage mechanism, wherein the furnace body is internally provided with a plurality of quenching cavities, and the control device is used for controlling the furnace doors to be closed or opened;

the limiting frame is arranged outside the furnace body in a surrounding mode, the limiting frame comprises a driving support and transmission supports, the driving support is arranged on one side, away from the quenching cavity, of the furnace body, the transmission supports are arranged on two sides of the driving support respectively, and the furnace body is connected with the transmission supports through connecting components;

the control device comprises a plurality of driving mechanisms and transmission mechanisms connected with the driving mechanisms, a plurality of positioning layers are arranged in each driving support, one driving mechanism is arranged in each positioning layer, a plurality of supporting layers are arranged in each transmission support, one transmission mechanism is arranged in each supporting layer, the supporting layers correspond to the positioning layers one by one, a steering shaft is arranged between each driving mechanism and each transmission mechanism, each driving mechanism drives the corresponding transmission mechanism to transmit through the corresponding steering shaft, a linkage mechanism is arranged between each transmission mechanism and the corresponding furnace door, and each transmission mechanism drives the corresponding linkage mechanism to rotate so as to drive the corresponding furnace door to be opened or closed.

As a further improvement of the present invention, the drive mechanism includes a drive source, a deceleration assembly, and a primary steering gear, the deceleration assembly includes a deceleration master gear and a deceleration slave gear, the deceleration master gear is connected to the drive source, the deceleration slave gear is connected to an input end of the primary steering gear, the deceleration master gear is engaged with the deceleration slave gear, and an output end of the primary steering gear is connected to the steering shaft.

As a further improvement of the invention, the transmission mechanism comprises a secondary steering gear, a transmission shaft and a tertiary steering gear, one end of the steering shaft is connected with the input end of the secondary steering gear, the transmission shaft is connected with the output end of the secondary steering gear and the input end of the tertiary steering gear, and the output end of the tertiary steering gear is connected with the linkage mechanism.

As a further improvement of the invention, the linkage mechanism comprises a supporting seat, a linkage arm and a positioning disc, the supporting seat is connected with one side of the transmission bracket facing the furnace body, the linkage arm comprises a driving arm and a driven arm, one end of the driving arm is connected with the output end of the three-stage steering gear, the other end of the driving arm is connected with the furnace door, one end of the driven arm is connected with the supporting seat, the other end of the driven arm is connected with the furnace door, the driving arm and the driven arm are arranged in parallel, two ends of the driving arm and the driven arm are both connected with the positioning disc, and the positioning disc is connected with the joint of the driven arm and the supporting seat, the joint of the driven arm and the furnace door and.

As a further improvement of the invention, the supporting seat comprises a base, a rotating shaft and a cover seat, the base is connected with the transmission support, the cover seat is covered on the base, the rotating shaft is arranged in the base, one end of the rotating shaft penetrates out of the cover seat, the driven arm is connected with the rotating shaft, and a limiting piece for locking the driven arm and the rotating shaft is further arranged on the driven arm.

As a further improvement of the invention, the oven door comprises a door body, a support piece arranged in the door body and connecting pieces respectively arranged at two ends of the door body, the door body comprises a fixed frame and positioning frames inserted with two ends of the fixed frame, a placing groove is formed in the fixed frame, the support piece is arranged in the placing groove, a positioning assembly used for fixing the fixed frame and the support piece is further arranged in the fixed frame, and a heat dissipation ring groove is formed in one side of the support piece, which is far away from the fixed frame.

As a further improvement of the invention, the connecting piece comprises a connecting frame and a transmission arm, the connecting frame is connected with one side of the positioning frame, which is far away from the fixing frame, a fixed disc is arranged on the transmission arm, the fixed disc is connected with the connecting frame through a fastening piece, the transmission arm comprises a long arm section and a short arm section, the long arm section is connected with the driving arm, and the short arm section is connected with the driven arm.

As a further improvement of the invention, the positioning assembly comprises a positioning piece, a positioning lock sleeve and a locking piece, wherein a positioning hole penetrating through the supporting piece and the fixing frame is formed in the supporting piece, the positioning piece is arranged in the positioning hole in a penetrating mode, the positioning lock sleeve is arranged on one side, away from the supporting piece, of the fixing frame, a deformation groove is formed in the positioning lock sleeve, a locking hole communicated with the deformation groove is formed in the positioning lock sleeve, the locking piece is located in the locking hole, the axis of the locking piece is perpendicular to the axis of the positioning piece, the deformation groove is compressed when the locking piece is locked, the positioning lock sleeve deforms, and the positioning piece is locked by the positioning.

As a further development of the invention, the support is made of a high-temperature-resistant ceramic material.

As a further improvement of the invention, the furnace body comprises a body, a furnace frame and a heat insulation part, wherein the furnace frame and the heat insulation part are arranged outside the body in an enclosing manner, the body comprises a plurality of stacking parts and a separating part arranged in a quenching cavity, a heating part and an air duct are also arranged in the quenching cavity, the heating part is used for heating the quenching cavity, the air duct is used for introducing protective air into the quenching cavity, the heat insulation part is arranged between the body and the furnace frame, the connecting component comprises a connecting metal plate and a supporting metal plate, two ends of the connecting metal plate are connected with transmission brackets respectively arranged at two sides of the furnace body, the supporting metal plate is connected with the furnace frame and the connecting metal plate, the supporting metal plate is also connected with a heat conduction fan cover, the heat conduction fan cover is connected with an exhaust fan, the exhaust fan is used for extracting heat.

The invention has the beneficial effects that: the furnace body is surrounded by the limiting frame arranged on the periphery of the furnace body, the effect of supporting the control device can be achieved when the furnace body is protected, the control device is divided into a driving mechanism for providing driving force and a transmission mechanism for transmission, the transmission mechanism and the furnace door are connected through a linkage mechanism, when the driving mechanism drives the transmission mechanisms located on two sides of the furnace body to move, the furnace door is controlled to be opened or closed under the action of the linkage mechanism, the furnace door is stably controlled to be opened or closed, and therefore the work efficiency of quenching the workpiece is improved.

Drawings

FIG. 1 is a schematic view showing the overall structure of a quenching furnace;

FIG. 2 is a schematic structural diagram showing the body;

FIG. 3 is a schematic structural view showing a spacing frame and a control device;

FIG. 4 is an enlarged view of part A of FIG. 3;

FIG. 5 is an enlarged view of a portion B of FIG. 3;

FIG. 6 is an enlarged view of a portion C of FIG. 3;

FIG. 7 is a schematic view showing the overall structure of the oven door;

FIG. 8 is an enlarged view of a portion D of FIG. 7;

FIG. 9 is an exploded view, partially in section, embodying a positioning assembly.

Reference numerals: 1. a furnace body; 11. a body; 111. stacking the pieces; 112. a separator; 12. a furnace frame; 13. a quenching chamber; 14. a heating member; 15. an air duct; 16. a heat-conducting fan cover; 2. a limiting frame; 21. a drive bracket; 22. a transmission bracket; 23. a positioning layer; 24. a support layer; 3. a control device; 4. a drive mechanism; 41. a drive source; 42. a speed reduction assembly; 421. a deceleration main gear; 422. a deceleration slave gear; 43. a primary diverter; 44. a steering shaft; 5. a transmission mechanism; 51. a secondary diverter; 52. a drive shaft; 53. a tertiary diverter; 6. a furnace door; 61. a door body; 611. a fixing frame; 612. a positioning frame; 613. a placing groove; 62. a support member; 621. a heat dissipation ring groove; 63. a connecting member; 631. a connecting frame; 632. a drive arm; 633. fixing the disc; 634. a fastener; 635. a long arm section; 636. a short arm section; 64. a positioning assembly; 641. a positioning member; 642. positioning a lock sleeve; 643. a locking member; 644. positioning holes; 645. a deformation groove; 646. a lock hole; 7. a linkage mechanism; 71. a supporting seat; 711. a base; 712. a rotating shaft; 713. a cover seat; 72. a linkage arm; 721. an active arm; 722. a driven arm; 73. positioning a plate; 74. a limiting member; 8. a connecting assembly; 81. connecting metal plates; 82. and supporting the metal plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 and 2, a quenching furnace for metal hot forming according to a specific embodiment of the present invention includes a furnace body 1, the furnace body 1 includes a body 11, a furnace frame 12 and a heat insulation member, the body 11 is provided with a plurality of quenching cavities 13 for placing workpieces from top to bottom, the body 11 includes a plurality of stacking members 111 and a separating member 112 disposed in the quenching cavities 13, the stacking members 111 are made of high temperature resistant ceramic material, the separating member 112 is used for separating the workpieces placed in the quenching cavities 13 on the same layer, the quenching cavities 13 are further provided with a heating member 14 and an air duct 15, since the workpieces need to be heated when being quenched, the heating is realized under the action of the heating piece 14, the gas guide pipe 15 is used for leading protective gas into the quenching cavity 13, the protective gas is inert gas, the workpiece is protected under the action of introducing protective gas, so that the corrosion of the workpiece during quenching is reduced; the furnace frame 12 is arranged outside the body 11 in a v-21274shape, the furnace frame 12 is connected with a mounting surface through expansion screws, so that the furnace frame 12 can protect the body 11, the heat insulation piece is arranged between the body 11 and the furnace frame 12, the influence of high temperature generated by the body 11 during quenching on the furnace frame 12 is reduced under the action of the heat insulation piece, and the furnace frame 12 can keep good protection effect.

Referring to fig. 1 to 3, the integral quenching furnace further includes a limiting frame 2, a control device 3, a plurality of furnace doors 6 and a linkage mechanism 7, the limiting frame 2 includes a driving bracket 21 disposed on a side away from the quenching chamber 13 of the furnace body 1 and driving brackets 22 disposed on two sides of the driving bracket 21, the driving brackets 22 and the driving brackets 21 are enclosed to be in a shape of '21274', the control device 3 is disposed in the limiting frame 2, the plurality of furnace doors 6 are used for sealing the plurality of quenching chambers 13, the control device 3 is connected with the furnace doors 6 through the linkage mechanism 7, so as to control the furnace doors 6 to be opened and closed stably under the action of the control device 3, the furnace body 1 is connected with the driving brackets 22 through a connecting component 8, the connecting component 8 includes a connecting sheet metal 81 and a supporting sheet metal 82, two ends of the connecting sheet metal 81 are connected with the driving brackets 22 disposed on two sides of the furnace body 1, the supporting sheet metal 82 is, still be connected with heat conduction fan housing 16 on supporting panel beating 82, be connected with the air exhauster on the heat conduction fan housing 16, because when handling the work piece quenching, even furnace gate 6 seals quenching chamber 13, nevertheless quenching chamber 13 department still can be excessive and have the heat, carries out convulsions to furnace body 1 front side through the air exhauster, and heat conduction fan housing 16 carries out the water conservancy diversion, reduces the temperature of furnace body 1 front side through the mode of convulsions.

Referring to fig. 1 to 6, a plurality of positioning layers 23 are disposed in the driving bracket 21 from top to bottom, a plurality of supporting layers 24 are disposed in the transmission bracket 22 from top to bottom, the control device 3 includes a plurality of driving mechanisms 4 and transmission mechanisms 5 connected to the driving mechanisms 4, the plurality of driving mechanisms 4 are disposed in the plurality of positioning layers 23, the plurality of transmission mechanisms 5 are disposed in the plurality of supporting layers 24, the supporting layers 24 and the positioning layers 23 correspond to each other one by one, the driving mechanisms 4 include driving sources 41, decelerating assemblies 42 and primary diverters 43, the driving sources 41 are selected as servo motors, the decelerating assemblies 42 include decelerating master gears 421 and decelerating slave gears 422, the decelerating master gears 421 are connected to the driving sources 41, the decelerating slave gears 422 are connected to input ends of the primary diverters 43, output ends of the primary diverters 43 are connected to output ends of the primary diverters 44, the two output ends are respectively arranged at two sides of the first-stage steering gear 43 facing the transmission bracket 22, the transmission mechanism 5 comprises a second-stage steering gear 51, a transmission shaft 52 and a third-stage steering gear 53, one end of the steering shaft 44, which is far away from the first-stage steering gear 43, is connected with the input end of the second-stage steering gear 51, the transmission shaft 52 is connected with the output end of the second-stage steering gear 51 and the input end of the third-stage steering gear 53, the output end of the third-stage steering gear 53 is connected with the linkage mechanism 7, the second-stage steering gear 51 and the third-stage steering gear 53 are both provided with only one output;

when the furnace door 6 needs to be opened, the corresponding driving source 41 is started, the driving source 41 drives the steering shaft 44 to rotate through the first-stage steering gear 43, so that the second-stage steering gear 51 is driven to rotate, the third-stage steering gear 53 is driven to rotate under the action of the transmission shaft 52, the linkage mechanism 7 is driven to move, and the furnace door 6 connected with the linkage mechanism 7 is driven to open or close the quenching cavity 13.

Referring to fig. 1 to 6, the linkage mechanism 7 includes a supporting seat 71, a linkage arm 72 and a positioning plate 73, the supporting seat 71 includes a base 711, a rotating shaft 712 and a cover seat 713, the base 711 is connected to one side of the transmission bracket 22 facing the furnace body 1, the cover seat 713 is covered on the base 711, the rotating shaft 712 is disposed in the base 711, one end of the rotating shaft 712 penetrates out of the cover seat 713, so that the rotating shaft 712 can rotate around the base 711, the linkage arm 72 includes a driving arm 721 and a driven arm 722, one end of the driving arm 721 is connected to an output end of the tertiary steering gear 53, the other end of the driving arm is connected to the furnace door 6, one end of the driven arm 722 is connected to the rotating shaft 712, the other end of the driven arm is connected to the furnace door 6, the driving arm 721 and the driven arm 722 are disposed in parallel, a limiting member 74 for locking the driven arm 722 and the rotating shaft 712 is further disposed on, the driven arm 722 is not easy to rotate relative to the rotating shaft 712, the positioning disc 73 is connected to the two ends of the driving arm 721 and the driven arm 722, the positioning disc 73 comprises a disc body and screws, the disc bodies are arranged on the two sides of the driving arm 721 and the driven arm 722, the disc bodies are fixedly connected with the driving arm 721 or the driven arm 722 through the screws, the connecting positions of the positioning disc 73 and the driven arm 722 and the rotating shaft 712, the connecting positions of the driven arm 722 and the furnace door 6 and the connecting positions of the driving arm 721 and the furnace door 6 are connected in a tight fit manner, so that the driven arm 722 and the rotating shaft 712, the driven arm 722 and the furnace door 6, and the driving arm 721 and the furnace door 6 can be conveniently installed, and the stable driving.

Referring to fig. 7 to 9, the oven door 6 includes a door body 61, a support member 62 disposed in the door body 61, and a connecting member 63 disposed at two ends of the door body 61, the door body 61 includes a fixing frame 611 and a positioning frame 612 inserted into two ends of the fixing frame 611, so that the fixing frame 611 and the positioning frame 612 can be conveniently disassembled and assembled, the fixing frame 611 is provided with a placement groove 613, the support member 62 is disposed in the placement groove 613, the support member 62 is made of a high temperature-resistant ceramic material, so that when the quenching chamber 13 is sealed, the support member 62 is not easily deformed by high temperature in the quenching chamber 13, and thus good sealing performance is maintained, one side of the support member 62 away from the fixing frame 611 is provided with a heat dissipation ring groove 621, so that heat is dissipated under the effect of the heat dissipation ring groove 621, and heat is not easily accumulated at one side of the support.

Referring to fig. 6 to 9, the connecting member 63 includes a connecting frame 631 and a transmission arm 632, the connecting frame 631 is connected with one side of the positioning frame 612 departing from the fixing frame 611, the connecting frame 631 is further provided with a plurality of reinforcing ribs towards one side of the fixing frame 611, the connecting frame 631 and the reinforcing ribs are all welded and fixed on the fixing frame 611, the transmission arm 632 is provided with a fixing disc 633, the fixing disc 633 is connected with the connecting frame 631 through a fastener 634, the fastener 634 is selected as a bolt, the transmission arm 632 includes a long arm section 635 and a short arm section 636, the long arm section 635 is connected with the driving arm 721, the short arm section 636 is connected with the driven arm 722, the whole structure of the oven door 6 is convenient to be disassembled and assembled, so that when the structure of the oven door 6.

Referring to fig. 7 to 9, a positioning assembly 64 for connecting the fixing frame 611 and the supporting member 62 is further disposed in the fixing frame 611, the positioning assembly 64 includes a positioning member 641, a positioning lock sleeve 642 and a locking member 643, the positioning member 641 is a countersunk pin, the supporting member 62 is provided with a positioning hole 644 penetrating through the supporting member 62 and the fixing frame 611, the positioning member 641 is disposed in the positioning hole 644, the positioning lock sleeve 642 is disposed on a side of the fixing frame 611 away from the supporting member 62, the positioning lock sleeve 642 is provided with a shape-changing groove 645, the positioning lock sleeve 642 is provided with a locking hole 646 communicating with the shape-changing groove 645, the locking member 643 is disposed in the locking hole 646 and is in threaded connection with the locking hole 646, an axis of the locking member 643 is disposed perpendicular to an axis of the positioning member 641, the locking member 643 compresses the shape-changing groove 645 when being connected and locked with the locking hole 646, so that the, the positioning element 641 is not easily separated from the positioning hole 644, so that the fixing frame 611 and the supporting element 62 are fixed and positioned, and the supporting element 62 is convenient to disassemble and assemble.

The working principle and the effect are as follows:

the furnace frame 12 is arranged on the periphery of the body 11, the body 11 is arranged in an enclosing mode under the action of the furnace frame 12 and protected, the heat insulation piece is arranged between the furnace frame 12 and the body 11, the damage of heat to the furnace frame 12 is reduced, the limiting frame 2 is arranged on the periphery of the furnace body 1 to enclose the furnace body 1, the driving support 21 and the transmission support 22 in the limiting frame 2 are arranged in a reversed-21274-shaped mode, the control device 3 is arranged in the limiting frame 2 to protect the furnace body 1 and play a role of supporting the control device 3, the control device 3 is divided into a driving mechanism 4 providing driving force and a transmission mechanism 5 performing transmission, the driving mechanism 4 conveniently controls the transmission mechanism 5 to perform transmission, the transmission mechanism 5 is connected with the furnace door 6 through a linkage mechanism 7, so that when the driving mechanism 4 drives the transmission mechanisms 5 positioned on two sides of the furnace body 1 to move, the opening or closing of the furnace door 6 is controlled under the action of the linkage mechanism 7, the supporting piece 62 in the furnace door 6 is made of high-temperature-resistant ceramic materials, so that when the furnace door 6 seals the quenching cavity 13, the high temperature at the quenching cavity 13 is not easy to cause the furnace door 6 to be heated and deformed, and the stable sealing of the quenching cavity 13 is realized; the invention realizes the stable control of the opening or closing of the furnace door 6, thereby improving the work efficiency of quenching the workpiece.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (10)

1. A quenching furnace for metal hot forming is characterized in that: the furnace comprises a furnace body (1), a limiting frame (2), a control device (3), a plurality of furnace doors (6) and a linkage mechanism (7), wherein the furnace body (1) is internally provided with a plurality of quenching cavities (13), and the control device (3) is used for controlling the furnace doors (6) to be closed or opened;

the limiting frame (2) is arranged outside the furnace body (1) in a surrounding mode, the limiting frame (2) comprises a driving support (21) arranged on one side, away from the quenching cavity (13), of the furnace body (1) and transmission supports (22) arranged on two sides of the driving support (21) respectively, and the furnace body (1) is connected with the transmission supports (22) through connecting components (8);

the control device (3) comprises a plurality of driving mechanisms (4) and transmission mechanisms (5) connected with the driving mechanisms (4), a plurality of positioning layers (23) are arranged in a driving support (21), one driving mechanism (4) is arranged in each positioning layer (23), a plurality of supporting layers (24) are arranged in each transmission support (22), one transmission mechanism (5) is arranged in each supporting layer (24), the supporting layers (24) and the positioning layers (23) are in one-to-one correspondence, a steering shaft (44) is arranged between each driving mechanism (4) and each transmission mechanism (5), each driving mechanism (4) drives each transmission mechanism (5) to transmit through the corresponding steering shaft (44), a linkage mechanism (7) is arranged between each transmission mechanism (5) and the furnace door (6), and each transmission mechanism (5) drives each linkage mechanism (7) to rotate, so that the linkage mechanism (7) drives the opening or closing of the oven door (6).

2. The quenching furnace for metal hot forming as claimed in claim 1, wherein: the driving mechanism (4) comprises a driving source (41), a speed reduction assembly (42) and a primary steering gear (43), the speed reduction assembly (42) comprises a speed reduction main gear (421) and a speed reduction slave gear (422), the speed reduction main gear (421) is connected with the driving source (41), the speed reduction slave gear (422) is connected with the input end of the primary steering gear (43), the speed reduction main gear (421) is meshed with the speed reduction slave gear (422), and the output end of the primary steering gear (43) is connected with a steering shaft (44).

3. The quenching furnace for metal hot forming as claimed in claim 1, wherein: drive mechanism (5) are including second grade steering gear (51), transmission shaft (52) and tertiary steering gear (53), steering shaft (44) one end is connected with second grade steering gear (51) input, the output of second grade steering gear (51) and the input of tertiary steering gear (53) are connected in transmission shaft (52), the output and the link gear (7) of tertiary steering gear (53) are connected.

4. The quenching furnace for metal hot forming as claimed in claim 3, wherein: the linkage mechanism (7) comprises a supporting seat (71), a linkage arm (72) and a positioning disc (73), the supporting seat (71) is connected with one side of the transmission bracket (22) facing the furnace body (1), the linkage arm (72) comprises a driving arm (721) and a driven arm (722), one end of the active arm (721) is connected with the output end of the third-level steering gear (53), the other end is connected with the furnace door (6), one end of the driven arm (722) is connected with the supporting seat (71), the other end is connected with the furnace door (6), the driving arm (721) and the driven arm (722) are arranged in parallel, two ends of the driving arm (721) and the driven arm (722) are both connected with a positioning disc (73), the joint of the positioning disc (73) and the driven arm (722) and the supporting seat (71), the joint of the driven arm (722) and the furnace door (6) and the joint of the driving arm (721) and the furnace door (6) are connected in a tight fit manner.

5. The quenching furnace for metal hot forming as claimed in claim 4, wherein: the supporting seat (71) comprises a base (711), a rotating shaft (712) and a cover seat (713), the base (711) is connected with the transmission support (22), the cover seat (713) is covered on the base (711), the rotating shaft (712) is arranged in the base (711), one end of the rotating shaft penetrates out of the cover seat (713), the driven arm (722) is connected with the rotating shaft (712), and a limiting piece (74) used for locking the driven arm (722) and the rotating shaft (712) is further arranged on the driven arm (722).

6. The quenching furnace for metal hot forming as claimed in claim 1, wherein: furnace gate (6) are including the door body (61), set up support piece (62) in the door body (61) and divide connecting piece (63) of establishing at door body (61) both ends, the door body (61) including fixed frame (611) and insert locating frame (612) of establishing with fixed frame (611) both ends, set up on fixed frame (611) and put groove (613), support piece (62) set up in putting groove (613), still be provided with locating component (64) that are used for fixed money and support piece (62) in fixed frame (611), heat dissipation annular (621) have been seted up to one side that support piece (62) deviate from fixed frame (611).

7. The quenching furnace for metal hot forming as claimed in claim 6, wherein: connecting piece (63) are including linking frame (631) and transmission arm (632), linking frame (631) are connected with one side that fixed frame (611) deviates from to location frame (612), be provided with fixed disk (633) on transmission arm (632), be connected through fastener (634) between fixed disk (633) and linking frame (631), transmission arm (632) are including long arm section (635) and short arm section (636), long arm section (635) are connected with driving arm (721), short arm section (636) are connected with driven arm (722).

8. The quenching furnace for metal hot forming as claimed in claim 6, wherein: the positioning assembly (64) comprises a positioning member (641), a positioning lock sleeve (642) and a locking member (643), the supporting piece (62) is provided with a positioning hole (644) which penetrates through the supporting piece (62) and the fixing frame (611), the positioning piece (641) penetrates through the positioning hole (644), the positioning lock sleeve (642) is arranged on one side of the fixing frame (611) departing from the supporting piece (62), the positioning lock sleeve (642) is provided with a deformation groove (645), the positioning lock sleeve (642) is provided with a lock hole (646) communicated with the deformation groove (645), the locking member (643) is positioned in the locking hole (646), the axis of the locking member (643) is perpendicular to the axis of the positioning member (641), when the locking piece (643) is locked, the deformation groove (645) is compressed, the positioning lock sleeve (642) is deformed, and the positioning lock sleeve (642) locks the positioning piece (641).

9. The quenching furnace for metal hot forming as claimed in claim 6, wherein: the support (62) is made of a high temperature resistant ceramic material.

10. The quenching furnace for metal hot forming as claimed in any one of claims 1 to 9, wherein: the furnace body (1) comprises a body (11), a furnace frame (12) and a heat insulation part which are arranged outside the body (11) in a surrounding manner, the body (11) comprises a plurality of stacking parts (111) and a separating part (112) arranged in a quenching cavity (13), a heating part (14) and an air duct (15) are further arranged in the quenching cavity (13), the heating part (14) is used for heating the quenching cavity (13), the air duct (15) is used for introducing protective gas into the quenching cavity (13), the heat insulation part is arranged between the body (11) and the furnace frame (12), the connecting component (8) comprises a connecting metal plate (81) and a supporting metal plate (82), the two ends of the connecting metal plate (81) are connected with transmission supports (22) which are respectively arranged on the two sides of the furnace body (1), the supporting metal plate (82) is connected with the furnace frame (12) and the connecting metal plate (81), and the supporting metal plate (82) is further connected with a heat conduction cover (16), an exhaust fan is connected to the heat-conducting fan cover (16), the exhaust fan is used for extracting heat overflowing from the furnace body (1), and the heat-conducting fan cover (16) is used for guiding air when the exhaust fan exhausts air.

Images