Annealing furnace for heat treatment of high-carbon steel

Abstract

The invention discloses an annealing furnace for heat treatment of high-carbon steel, and belongs to the technical field of high-carbon steel processing.The annealing furnace is provided with a second wheel rod, a connecting rod, a first transmission bevel gear, a chain wheel and a chain, the second wheel rod is pulled firstly so that a clamping block can be separated from a protective chain box, and then the second wheel rod is rotated to enable the clamping block to be matched with a limiting groove; the connecting rod drives the first transmission bevel gear to rotate, the first transmission bevel gear drives one chain wheel to rotate through cooperation of the second transmission bevel gear, and therefore the chain drives the transmission block to slide on the protection chain box through cooperation of the reciprocating sliding block, and a material pushing plate pushes a workpiece to move. And a limiting block is arranged in a transmission groove, so that the stability of the material pushing plate in the moving process is greatly improved, and a reciprocating sliding block slides in a transmission block, so that reciprocating movement of the material pushing plate is achieved, workers can conveniently and rapidly collect annealed workpieces, and the practicability of the annealing device is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of high carbon steel processing, in particular to an annealing furnace for heat treatment of high carbon steel. Background Art

[0002] High carbon steel is a kind of steel with a high carbon content, usually more than 0.6%. This kind of steel is widely used in the manufacture of various tools, cutting tools and molds due to its high hardness, high strength and good wear resistance. High carbon steel can be changed through heat treatment, such as quenching, tempering and annealing. The main purpose of annealing high carbon steel is to reduce hardness, improve cutting processability, and prepare for subsequent quenching treatment.

[0003] In addition, during the use of traditional high-carbon steel annealing furnaces, high-carbon steel is often placed on a placement rack inside the annealing furnace, but the placement rack is often fixed in the annealing furnace. As a result, the high-carbon steel on the placement rack on the inner side of the annealing furnace needs to be manually taken out with the help of tools, which makes it inconvenient to take out the high-carbon steel, greatly affecting the annealing efficiency of the high-carbon steel. Summary of the invention

[0004] In order to overcome the above defects, the present invention provides an annealing furnace for heat treatment of high carbon steel, which solves the problem that the traditional high carbon steel annealing furnace is not convenient for taking out high carbon steel during use, thereby affecting the annealing efficiency of high carbon steel.

[0005] To achieve the above object, the present invention provides the following technical solution: an annealing furnace for heat treatment of high carbon steel, comprising a base, a support block and a shell are arranged on the top of the base, a connecting edge and a sealing cover are arranged at one end of the shell, an air circulation device is arranged on the top of the shell, handrails and a sealing layer are arranged at both ends of the sealing cover, a fixing device is arranged on the sealing cover, a slide groove is arranged on the sealing layer, and an inner shell is arranged in the shell;

[0006] The inner shell is provided with a placement bed, a connection block, an insulation layer, a heating element and a ventilation element, the connection block is provided with a conduit, the placement bed is provided with a material pushing device, both sides of the placement bed are provided with side panels and support legs, the side panels are provided with transmission grooves, and the material pushing device includes a wheel rod 2 and a protective chain box;

[0007] A clamping block and a connecting rod are provided at one end of the wheel rod 2, a limiting groove is provided on the connecting rod, a transmission bevel gear 1 is provided at one end of the connecting rod, a transmission bevel gear 2 meshing with the transmission bevel gear 1 is provided on one side of the transmission bevel gear 1, a sprocket is provided on the transmission bevel gear 2, a chain is provided on the sprocket, a transmission block and a reciprocating slider are provided on the chain, a push plate is provided on the top of the transmission block, and limiting blocks are provided on both sides of the push plate.

[0008] As a further solution of the present invention: the support block is fixedly connected to the top of the base, the outer shell is fixedly connected to the support block, the air circulation device and the connecting edge are both fixedly connected to the outer shell, the sealing cover is sleeved on the connecting edge, a limiting rod is fixedly connected to the connecting edge, and the limiting rod is inserted into the sealing cover, the handrail is fixedly connected to the sealing cover, and the connecting block is fixedly connected to the outer shell and the inner shell.

[0009] As a further solution of the present invention: the insulation layer is sleeved on the outer ring of the inner shell, the conduit is fixedly connected to the connecting block, the sealing layer is fixedly connected to the sealing cover, and the sealing layer is overlapped on the inner shell, and the heating element and the ventilation element are fixedly connected to the inner ring of the inner shell.

[0010] As a further solution of the present invention: the two ends of the supporting legs are respectively fixedly connected to the placement bed and the inner shell, the side panels are fixedly connected to the two sides of the placement bed, the protective chain box is fixedly connected to the bottom of the placement bed, the two ends of the chain are installed in the protective chain box through sprockets, and the transmission bevel gear 2 is fixedly connected to one of the sprockets.

[0011] As a further solution of the present invention: the transmission bevel gear 1 is fixedly connected to the connecting rod, the connecting rod is inserted into the protective chain box, the clamping block is slidably connected to the limiting groove, and the clamping block is inserted into the protective chain box, and one end of the wheel rod 2 passes through the connecting rod and is fixedly connected to the clamping block.

[0012] As a further solution of the present invention: the reciprocating slider is fixedly connected to the chain, the transmission block is slidably connected in the protective chain box, the reciprocating slider is slidably connected to the transmission block, the top of the transmission block is fixedly connected to the push plate, both ends of the push plate are fixedly connected to the limit block, and the limit block is slidably connected to the transmission groove, and the push plate is arranged on the placement bed.

[0013] As a further solution of the present invention: the fixing device includes a wheel rod 1, the wheel rod 1 is inserted into the sealing cover, one end of the wheel rod 1 is fixedly connected to a main fixed bevel gear, the main fixed bevel gear is overlapped with four auxiliary fixed bevel gears meshing with it, and the auxiliary fixed bevel gears are fixedly connected to a transmission guide rod.

[0014] As a further solution of the present invention: one end of the transmission guide rod is fixedly connected to a transmission screw, and the transmission guide rod and the transmission screw are both inserted into the sealing cover, a fixed plug rod is threadedly connected to the transmission screw, and the fixed plug rod is slidably connected in the slide groove, and one end of the fixed plug rod penetrates the sealing layer and is inserted into the connecting edge.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, by setting wheel rod 2, connecting rod, transmission bevel gear 1, sprocket and chain, first pull wheel rod 2 to disengage the block from the plug-in connection with the protective chain box, then rotate wheel rod 2 to cooperate with the block and the limit groove, so that the connecting rod drives the transmission bevel gear 1 to rotate, and the transmission bevel gear 1 drives one of the sprockets to rotate through the cooperation of the transmission bevel gear 2, so that the chain drives the transmission block to slide on the protective chain box through the cooperation of the reciprocating slider, so that the push plate pushes the workpiece to move, and the limit block is in the transmission groove, thereby greatly improving the stability of the push plate during movement, and the reciprocating slider slides in the transmission block, thereby realizing the reciprocating movement of the push plate, so that it is convenient for the staff to quickly collect the annealed workpieces, and greatly improving the practicality of the annealing device.

[0017] 2. In the present invention, by arranging wheel rod 1, main fixed bevel gear, auxiliary fixed bevel gear, transmission guide rod, transmission screw rod, fixed plug rod, slide groove, sealing layer, the insulation layer plays the role of keeping the inner shell warm, and by the cooperation of the heating original part, the workpiece is annealed, and by the cooperation of the duct, the air circulation device and the ventilation part, the air in the inner shell flows, so as to facilitate the annealing of the workpiece, and when the sealing cover is sleeved on the connecting edge, the sealing cover is assisted in positioning by the cooperation of the limit rod, so as to facilitate the subsequent plugging of the fixed plug rod into the connecting edge, and the wheel rod 1 is rotated, so that the main fixed bevel gear drives the transmission guide rod to rotate through the cooperation of the four auxiliary fixed bevel gears, and the fixed plug rod is plugged into the connecting edge with the assistance of the transmission screw rod, so that the sealing cover is quickly fixed on the outer shell, compared with the traditional barrel cover fixed by multiple sets of bolts, the convenience of the annealing device is greatly improved, so as to facilitate the rapid fixing of the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the inner shell and the outer shell of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the material pushing device of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the wheel rod 2 and the clamping block of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the reciprocating slider and the push plate of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the sealing gasket and the sealing cover of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the fixing device of the present invention;

[0025] In the figure: 1, base; 2, support block; 3, housing; 4, sealing cover; 5, handrail; 6, fixing device; 601, wheel rod 1; 602, main fixed bevel gear; 603, auxiliary fixed bevel gear; 604, transmission guide rod; 605, transmission screw rod; 606, fixed plug rod; 7, air circulation device; 8, pusher device; 801, wheel rod 2; 802, connecting rod; 803, transmission bevel gear 1; 804, transmission bevel gear 2; 805, chain Wheel; 806, chain; 807, transmission block; 808, protective chain box; 809, push plate; 810, reciprocating slider; 811, limit block; 812, clamp block; 813, limit groove; 9, placement bed; 10, connecting edge; 11, connecting block; 12, conduit; 13, insulation layer; 14, inner shell; 15, heating element; 16, ventilation element; 17, sealing layer; 18, supporting leg; 19, side plate; 20, transmission groove; 21, slide groove. DETAILED DESCRIPTION

[0026] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0027] like Figure 1-7 As shown, the present invention provides a technical solution: an annealing furnace for heat treatment of high carbon steel, comprising a base 1, a support block 2 and a shell 3 are arranged on the top of the base 1, the support block 2 is fixedly connected to the top of the base 1, the shell 3 is fixedly connected to the support block 2, an air circulation device 7 is arranged on the top of the shell 3, a connecting edge 10 is arranged at one end of the shell 3, a sealing cover 4 is sleeved on the connecting edge 10, a limiting rod is fixedly connected to the connecting edge 10, and the limiting rod is inserted into the sealing cover 4, and a handrail 5 is fixedly connected to the sealing cover 4. The shell 3 is fixed on the base 1 through the cooperation of the support block 2, and the limiting rod on the connecting edge 10 is used to limit the sealing cover 4, and through the cooperation of the handrail 5, it is convenient for the staff to take the sealing cover 4.

[0028] A fixing device 6 is provided on the sealing cover 4, and the fixing device 6 includes a wheel rod 601, which is inserted into the sealing cover 4, one end of the wheel rod 601 is fixedly connected to a main fixed bevel gear 602, four auxiliary fixed bevel gears 603 meshing with the main fixed bevel gear 602 are overlapped and connected, and a transmission guide rod 604 is fixedly connected to the auxiliary fixed bevel gear 603; a sealing layer 17 is provided on the sealing cover 4, a slide groove 21 is opened on the sealing layer 17, one end of the transmission guide rod 604 is fixedly connected to a transmission screw rod 605, and the transmission guide rod 604 and the transmission screw rod 605 are both inserted into the sealing cover 4, a fixed plug rod 606 is threadedly connected to the transmission screw rod 605, and the fixed plug rod 606 is slidably connected in the slide groove 21, and one end of the fixed plug rod 606 penetrates the sealing layer 17 and is inserted into the connecting edge 10.

[0029] The rotation of the wheel rod 601 cooperates with the main fixed bevel gear 602, so that the four auxiliary fixed bevel gears 603 drive the transmission guide rod 604 to rotate, so that the fixed plug rod 606 is plugged into the connecting edge 10, so that the sealing cover 4 is quickly fixed on the shell 3, improving the convenience of installation and removal of the shell 3. The rotation of the transmission guide rod 604 drives the transmission screw 605 to rotate, so that the fixed plug rod 606 slides, so that the fixed plug rod 606 is plugged into the connecting edge 10, and through the cooperation of the upper limit rod on the connecting edge 10, the fixing of the shell 3 is realized, and at this time, the sealing layer 17 overlaps the inner shell 14, so as to facilitate the subsequent annealing of the workpiece placed on the bed 9.

[0030] An inner shell 14 is arranged in the outer shell 3, and a placement bed 9, a connecting block 11, an insulating layer 13, a heating element 15 and a ventilation element 16 are arranged on the inner shell 14. The insulating layer 13 is sleeved on the outer ring of the inner shell 14, the conduit 12 is fixedly connected to the connecting block 11, the sealing layer 17 is fixedly connected to the sealing cover 4, and the sealing layer 17 is overlapped on the inner shell 14, and the heating element 15 and the ventilation element 16 are both fixedly connected to the inner ring of the inner shell 14; the insulating layer 13 is used to keep the inner shell 14 warm, thereby effectively avoiding the loss of heat in the inner shell 14, and the heating element 15 is used to heat the inside of the inner shell 14, and the ventilation element 16 cooperates with the conduit 12 and the air circulation device 7 to make the air in the inner shell 14 flow, so as to fully anneal the workpiece on the placement bed 9.

[0031] A guide tube 12 is provided on the connecting block 11, a pusher device 8 is provided on the placing bed 9, side plates 19 and support legs 18 are provided on both sides of the placing bed 9, the two ends of the support legs 18 are respectively fixedly connected to the placing bed 9 and the inner shell 14, the side plates 19 are fixedly connected to both sides of the placing bed 9, the protective chain box 808 is fixedly connected to the bottom of the placing bed 9, the two ends of the chain 806 are installed in the protective chain box 808 through the sprocket 805, and the transmission bevel gear 804 is fixedly connected to one of the sprockets 805; a transmission groove 20 is opened on the side plate 19, and the pusher device 8 It includes a wheel rod 801 and a protective chain box 808, one end of the wheel rod 801 is provided with a clamping block 812 and a connecting rod 802, a limiting groove 813 is provided on the connecting rod 802, one end of the connecting rod 802 is provided with a transmission bevel gear 803, the transmission bevel gear 803 is fixedly connected to the connecting rod 802, the connecting rod 802 is plugged into the protective chain box 808, the clamping block 812 is slidably connected to the limiting groove 813, and the clamping block 812 is plugged into the protective chain box 808, and one end of the wheel rod 801 passes through the connecting rod 802 and is fixedly connected to the clamping block 812;

[0032] The side plates 19 effectively prevent the workpieces from falling from the two sides of the placement bed 9. The placement bed 9 is fixed in the inner shell 14 through the cooperation of the support legs 18, and the protective chain box 808 is used to protect the chain 806, effectively preventing external debris from affecting the normal operation of the chain 806, and the transmission bevel gear 804 is used to drive one of the sprockets 805 to rotate, thereby moving the chain 806 to facilitate the subsequent push plate 809 to drive the workpiece to move; the block 812 slides in the limit groove 813, so that the wheel rod 801 drives the connecting rod 802 to rotate, and when the block 812 is plugged into the protective chain box 808, the push plate 809 is limited, and when the block 812 is disengaged from the protective chain box 808, the push plate 809 drives the workpiece to move.

[0033] A transmission bevel gear 804 meshing with the transmission bevel gear 1 803 is provided on one side, a sprocket 805 is provided on the transmission bevel gear 804, a chain 806 is provided on the sprocket 805, a transmission block 807 and a reciprocating slider 810 are provided on the chain 806, the reciprocating slider 810 is fixedly connected to the chain 806, the transmission block 807 is slidably connected in the protective chain box 808, the reciprocating slider 810 is slidably connected to the transmission block 807, the top of the transmission block 807 is fixedly connected to the push plate 809, both ends of the push plate 809 are fixedly connected to the limit block 811, and the limit block 811 is fixedly connected to the push plate 809. 11 is slidably connected to the transmission groove 20, the push plate 809 is arranged on the placement bed 9, the push plate 809 is arranged on the top of the transmission block 807, and the limit blocks 811 are arranged on both sides of the push plate 809; the movement of the chain 806 is coordinated through the reciprocating slider 810, so that the transmission block 807 drives the push plate 809 to move, and slides in the transmission groove 20 through the limit block 811, so as to limit the push plate 809, and the movement of the push plate 809 pushes the workpiece on the placement bed 9 to move horizontally, so that the staff can quickly collect the workpiece on the placement bed 9.

[0034] The working principle of the present invention is as follows: first, the workpieces are placed on the placing bed 9 one by one, and then the sealing cover 4 is closed, so that the sealing cover 4 is sleeved on the connecting edge 10, and at this time, the limiting rod is inserted into the sealing cover 4, thereby preliminarily limiting the sealing cover 4, and then the wheel rod 601 is rotated to make the main fixed bevel gear 602 drive the transmission screw 605 to rotate through the cooperation of the auxiliary fixed bevel gear 603 and the transmission guide rod 604, so that the fixed plug rod 606 is inserted into the connecting edge 10, thereby realizing the rapid fixing of the sealing cover 4 on the outer shell 3, and then the workpiece on the placing bed 9 is heated by the heating element 15, wherein the heat-insulating layer 13 serves the purpose of keeping the inner shell 14 warm, avoiding the loss of heat in the inner shell 14, and starting the air circulation device 7 through the cooperation of the duct 12 and the ventilation element 16, so that the air in the inner shell 14 flows, and when it is necessary to take out the workpiece on the placing bed 9, firstly rotate the wheel rod 601 in the opposite direction to make the fixed plug rod 606 disengage from the connecting The sealing cover 4 is removed by plugging the connecting edge 10 and cooperating with the handrail 5, and then the wheel rod 801 is pulled to disengage the block 812 from the plugging of the protective chain box 808, and then the wheel rod 801 is rotated, and the transmission bevel gear 1 803 drives the transmission bevel gear 2 804 to rotate through the cooperation of the connecting rod 802, and the rotation of the transmission bevel gear 2 804 drives one of the sprockets 805 to rotate, and through the cooperation of the other sprocket 805, the chain 806 is rotated in the protective The chain guard box 808 moves, and the transmission block 807 drives the push plate 809 to slide, and then the reciprocating slider 810 moves up and down in the transmission block 807, thereby realizing the reciprocating movement of the push plate 809 and the sliding of the push plate 809, so that the limit block 811 slides on the transmission groove 20 and limits the push plate 809, and the movement of the push plate 809 pushes the workpiece to move, so that it is convenient for the staff to collect the workpieces placed on the bed 9.

[0035] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

Claims

1. An annealing furnace for heat treatment of high carbon steel, comprising a base (1), characterized in that: The top of the base (1) is provided with a support block (2) and an outer shell (3); one end of the outer shell (3) is provided with a connecting edge (10) and a sealing cover (4); the top of the outer shell (3) is provided with an air circulation device (7); both ends of the sealing cover (4) are provided with handrails (5) and a sealing layer (17), respectively; a fixing device (6) is provided on the sealing cover (4); a sliding groove (21) is provided on the sealing layer (17); and an inner shell (14) is provided in the outer shell (3); The inner shell (14) is provided with a placement bed (9), a connection block (11), an insulation layer (13), a heating element (15) and a ventilation element (16); the connection block (11) is provided with a conduit (12); the placement bed (9) is provided with a material pushing device (8); both sides of the placement bed (9) are provided with side plates (19) and support legs (18); a transmission groove (20) is provided on the side plates (19); the material pushing device (8) includes a wheel rod 2 (801) and a protective chain box (808); A clamping block (812) and a connecting rod (802) are provided at one end of the wheel rod 2 (801); a limiting groove (813) is provided on the connecting rod (802); a transmission bevel gear 1 (803) is provided at one end of the connecting rod (802); a transmission bevel gear 2 (804) meshing with the transmission bevel gear 1 (803) is provided on one side of the transmission bevel gear 1 (803); a sprocket (805) is provided on the transmission bevel gear 2 (804); a chain (806) is provided on the sprocket (805); a transmission block (807) and a reciprocating slider (810) are provided on the chain (806); a push plate (809) is provided on the top of the transmission block (807); and limiting blocks (811) are provided on both sides of the push plate (809).

2. The annealing furnace for heat treatment of high carbon steel according to claim 1, characterized in that: The support block (2) is fixedly connected to the top of the base (1), the outer shell (3) is fixedly connected to the support block (2), the air circulation device (7) and the connecting edge (10) are both fixedly connected to the outer shell (3), the sealing cover (4) is sleeved on the connecting edge (10), a limiting rod is fixedly connected to the connecting edge (10), and the limiting rod is inserted into the sealing cover (4), the handrail (5) is fixedly connected to the sealing cover (4), and the connecting block (11) is fixedly connected to the outer shell (3) and the inner shell (14).

3. The annealing furnace for heat treatment of high carbon steel according to claim 2, characterized in that: The thermal insulation layer (13) is sleeved on the outer ring of the inner shell (14), the conduit (12) is fixedly connected to the connecting block (11), the sealing layer (17) is fixedly connected to the sealing cover (4), and the sealing layer (17) is overlapped on the inner shell (14), and the heating element (15) and the ventilation element (16) are both fixedly connected to the inner ring of the inner shell (14).

4. The annealing furnace for heat treatment of high carbon steel according to claim 3, characterized in that: The two ends of the support leg (18) are respectively fixedly connected to the placement bed (9) and the inner shell (14), the side plate (19) is fixedly connected to the two sides of the placement bed (9), the protective chain box (808) is fixedly connected to the bottom of the placement bed (9), the two ends of the chain (806) are installed in the protective chain box (808) through the sprocket (805), and the transmission bevel gear 2 (804) is fixedly connected to one of the sprockets (805).

5. The annealing furnace for heat treatment of high carbon steel according to claim 4, characterized in that: The transmission bevel gear 1 (803) is fixedly connected to the connecting rod (802), the connecting rod (802) is plugged into the protective chain box (808), the clamping block (812) is slidably connected to the limiting groove (813), and the clamping block (812) is plugged into the protective chain box (808), and one end of the wheel rod 2 (801) passes through the connecting rod (802) and is fixedly connected to the clamping block (812).

6. The annealing furnace for heat treatment of high carbon steel according to claim 5, characterized in that: The reciprocating slider (810) is fixedly connected to the chain (806), the transmission block (807) is slidably connected to the protective chain box (808), the reciprocating slider (810) is slidably connected to the transmission block (807), the top of the transmission block (807) is fixedly connected to the push plate (809), both ends of the push plate (809) are fixedly connected to the limit block (811), and the limit block (811) is slidably connected to the transmission groove (20), and the push plate (809) is arranged on the placement bed (9).

7. The annealing furnace for heat treatment of high carbon steel according to claim 6, characterized in that: The fixing device (6) comprises a wheel rod (601), the wheel rod (601) being inserted into the sealing cover (4), one end of the wheel rod (601) being fixedly connected to a main fixed bevel gear (602), the main fixed bevel gear (602) being overlapped with four auxiliary fixed bevel gears (603) meshing therewith, and the auxiliary fixed bevel gears (603) being fixedly connected to a transmission guide rod (604).

8. The annealing furnace for heat treatment of high carbon steel according to claim 7, characterized in that: One end of the transmission guide rod (604) is fixedly connected to a transmission screw rod (605), and the transmission guide rod (604) and the transmission screw rod (605) are both plugged into the sealing cover (4). A fixed plug rod (606) is threadedly connected to the transmission screw rod (605), and the fixed plug rod (606) is slidably connected to the slide groove (21). One end of the fixed plug rod (606) passes through the sealing layer (17) and is plugged into the connecting edge (10).

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