Fuel gas type high-temperature heat treatment furnace

Abstract

The utility model relates to the technical field of fuel gas high-temperature heat treatment, and discloses a fuel gas type high-temperature heat treatment furnace which comprises a combustion furnace, second motors are fixedly connected to the middle upper portions of the left side and the right side of the combustion furnace, and the output ends of the two second motors penetrate through the combustion furnace and are fixedly connected with rotating discs. Hollow pipes are slidably connected to the outer sides of the two second connecting rods, first fixing rods are fixedly connected to the front and rear ends of the left and right sides of the top of the partition plate at equal intervals, a lifting mechanism is arranged at the front end of the bottom of the inner side of the combustion furnace, and the lifting mechanism is used for opening a cabin door to facilitate maintenance of workers. The second motors on the two sides can drive the rotating disc to rotate and drive the rack fixed to the rotating disc to slide, at the moment, the meshed second gear rotates under the action of the rack, a nozzle driven by the rack cannot accumulate a large amount of fuel gas when conveying the fuel gas to the interior, and therefore the efficiency that the one-way valve absorbs the fuel gas to the interior is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-fired high-temperature heat treatment, in particular to a gas-fired high-temperature heat treatment furnace. Background Art

[0002] A heat treatment furnace refers to an electric furnace or fuel furnace used for heat treatment of furnace charges. The heat treatment furnaces used include box-type resistance furnaces, pit-type resistance furnaces, gas carburizing furnaces and salt bath furnaces. The heat treatment furnace can significantly improve the hardness and strength of metal materials through quenching and carburizing heat treatment processes.

[0003] The heat treatment furnace needs to heat the materials inside it when it is working. The current heating methods of heat treatment furnaces include gas heating, resistance heating and laser heating. Gas is widely used because it can reach the set temperature in a short time and produces less harmful waste gas.

[0004] When heating, the existing gas-fired high-temperature heat treatment furnace often first injects gas into the treatment furnace. When the gas in the treatment furnace reaches a certain concentration, the gas is turned off and the ignition operation is performed. However, the gas is easily accumulated during the transportation process, and the gas on the lower side will slowly push the gas on the upper side into the treatment furnace. The gas transportation efficiency is slow, which reduces the practicality of the device and cannot meet the needs of users. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a gas-fired high-temperature heat treatment furnace, which aims to improve the problem of slow gas transportation efficiency inside the gas-fired high-temperature heat treatment furnace in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a gas-fired high-temperature heat treatment furnace, comprising a combustion furnace, wherein the middle and upper parts of the left and right sides of the combustion furnace are fixedly connected to a second motor, the output ends of the two second motors pass through the combustion furnace and are fixedly connected to a rotating disk, the adjacent sides of the two rotating disks are fixedly connected to a second connecting rod, the outer sides of the two second connecting rods are slidably connected to a hollow tube, the inner side of the combustion furnace is fixedly connected to a partition, the front and rear ends of the left and right sides of the top of the partition are equidistantly fixedly connected to a first fixing rod, the upper ends of multiple first fixing rods are fixedly connected to the combustion furnace, and the outer sides of multiple first fixing rods are slidably connected There is a rack, and the left and right sides of the top of the partition are fixedly connected with a second fixing rod, and the ends of the two second fixing rods that are away from each other are rotatably connected to the second gear, and the two second gears are respectively meshed with the corresponding racks, and the adjacent sides of the two hollow tubes are respectively fixedly connected to the corresponding side of the rack, and the adjacent sides of the multiple racks are fixedly connected with a third fixing rod, and one end of the multiple third fixing rods is fixedly connected with a nozzle, and the bottoms of the multiple nozzles are connected with a hose, and the middle part of the top of the partition is rotatably connected to the processing cabin, and a lifting mechanism is provided at the front end of the inner bottom of the combustion furnace, and the lifting mechanism is used to open the cabin door to facilitate maintenance by the staff.

[0007] As a further description of the above technical solution:

[0008] The lifting mechanism includes a first motor, the bottom end of the first motor is fixedly connected to the bottom side of the interior of the combustion furnace, the output end of the first motor is fixedly connected to a worm, the left and right sides of the interior of the combustion furnace are rotatably connected to the same bidirectional screw, the middle part of the outer wall of the bidirectional screw is fixedly connected to a worm gear, the worm gear and the worm gear are meshed and connected, the left and right sides of the outer wall of the bidirectional screw are threadedly connected to inclined blocks, the tops of the two inclined blocks are provided with a first slide groove, the insides of the two first slide grooves are slidably connected to a first connecting rod, the tops of the two first connecting rods are fixedly connected to the same gas cabin door, and the top of the gas cabin door passes through the combustion furnace.

[0009] As a further description of the above technical solution:

[0010] A gas tank is provided at the rear side of the combustion furnace, and gas pipes are connected to the left and right sides of the top of the gas tank. One end of the two gas pipes passes through the combustion furnace and is respectively connected to corresponding hoses.

[0011] As a further description of the above technical solution:

[0012] A push handle is fixedly connected to the left side of the combustion furnace, a plurality of anti-slip sleeves are fixedly connected to the outer wall of the push handle, and a plurality of universal wheels are fixedly connected to the bottom of the combustion furnace at equal intervals.

[0013] As a further description of the above technical solution:

[0014] The upper and lower sides of the left end of the combustion furnace are fixedly connected with hinges, and a side door is provided on the left side of the combustion furnace. The side door is rotatably connected to the left side of the combustion furnace through the hinge, and a pull ring is fixedly connected to the front end of the left side of the side door. A maintenance port is provided in the upper and middle part of the front side of the combustion furnace, and an air vent is provided on the front side of the side door.

[0015] As a further description of the above technical solution:

[0016] A controller is fixedly connected to the middle and lower part of the front side of the combustion furnace, and the controller is electrically connected to the first motor, the second motor and the nozzle respectively.

[0017] As a further description of the above technical solution:

[0018] The top of the processing chamber passes through the combustion furnace, and multiple connecting pipes are evenly spaced around the outer wall of the processing chamber. The outer walls of the multiple connecting pipes are all provided with one-way valves, and the top of the combustion furnace processing chamber is threadedly connected to the furnace cover.

[0019] As a further description of the above technical solution:

[0020] A second chute is provided on the left and right sides of the inner bottom of the combustion furnace. Slide blocks are slidably connected to the inside of the two second chute. The two slide blocks are fixedly connected to the corresponding inclined plane blocks respectively.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the second motors on both sides can drive the rotating disk to rotate, causing the hollow tube to slide, and then driving the rack fixed to it to slide. At this time, the meshed second gear rotates under the action of the rack, thereby driving the rack on the other side. The racks on both sides will slide in different directions, so that the nozzle driven by the rack will not accumulate a large amount of gas when transporting gas to the interior, thereby improving the efficiency of the one-way valve to absorb gas into the interior, thereby improving the practicality of the device and meeting the needs of users.

[0023] 2. In the present invention, by starting the first motor to drive the worm, the rotation of the worm wheel engaged with it will drive the bidirectional lead screw. At this time, the inclined blocks on both sides will move closer, and the first connecting rod will be driven by the driving force to slide along the first slide groove, pushing the gas cabin door connected on the upper side to open, thereby facilitating the staff to replace the damaged parts inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of a gas-fired high-temperature heat treatment furnace proposed in the present invention;

[0025] Figure 2 This is a top structural cross-sectional view of a gas-fired high-temperature heat treatment furnace proposed in the present invention;

[0026] Figure 3 This is an exploded view of the local structure of a gas-fired high-temperature heat treatment furnace proposed in the present invention;

[0027] Figure 4 This is a structural cross-sectional view of a gas-fired high-temperature heat treatment furnace proposed in the present invention;

[0028] Figure 5 This is a side view of a gas-fired high-temperature heat treatment furnace proposed in the present invention;

[0029] Figure 6 This is a partial structural cross-sectional view of a gas-fired high-temperature heat treatment furnace proposed by the present invention.

[0030] Legend:

[0031] 1. Combustion furnace; 2. Lifting mechanism; 201. First motor; 202. Worm; 203. Worm gear; 204. Bidirectional screw; 205. Inclined block; 206. First chute; 207. First connecting rod; 208. Gas hatch; 3. Second motor; 4. Rotating plate; 5. Hollow tube; 6. First fixing rod; 7. Rack; 8. Second fixing rod; 9. Second gear; 10. Third fixing rod; 11. , nozzle; 12. Hose; 13. Gas tank; 14. Gas pipe; 15. Processing chamber; 16. One-way valve; 17. Second connecting rod; 18. Partition; 19. Slider; 20. Second slide; 21. Universal wheel; 22. Maintenance port; 23. Push handle; 24. Anti-slip cover; 25. Controller; 26. Furnace cover; 27. Side door; 28. Hinge; 29. ​​Pull ring; 30. Air vent; 31. Connecting pipe. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1 、 Figure 2 and Figure 3, an embodiment of the present invention provides: a gas-fired high-temperature heat treatment furnace, including a combustion furnace 1, the middle and upper parts of the left and right sides of the combustion furnace 1 are fixedly connected to a second motor 3, the output ends of the two second motors 3 pass through the combustion furnace 1 and are fixedly connected to a rotating disk 4, the adjacent sides of the two rotating disks 4 are fixedly connected to a second connecting rod 17, the outer sides of the two second connecting rods 17 are slidably connected to a hollow tube 5, the inner side of the combustion furnace 1 is fixedly connected to a partition 18, the top left and right sides of the partition 18 are equidistantly fixedly connected to a first fixed rod 6, the upper ends of multiple first fixed rods 6 are fixedly connected to the combustion furnace 1, the outer sides of multiple first fixed rods 6 are slidably connected to a rack 7, the top left and right sides of the partition 18 are fixedly connected to a second fixed rod 8, the two second fixed rods 8 are rotatably connected to the far ends thereof, and the two second gears 9 are respectively meshed with the corresponding rack 7, and the two hollow tubes 1 and 1. The top of the processing cabin 15 is threaded with a screw thread, and the bottom of the processing cabin 15 is connected to the bottom of the processing cabin 15.

[0034] Specifically, a gas tank 13 is installed on the rear side of the combustion furnace 1. The gas tank 13 has a gas pipe 14 that leads to the interior of the combustion furnace 1. When in use, the furnace cover 26 is first opened, the material to be processed is placed in the processing chamber 15, and then the furnace cover 26 is closed. At this time, the second motors 3 on both sides are started, and the output ends of the second motors 3 act on the rotating disk 4. When the rotating disk 4 rotates, the second connecting rod 17 will make a circular motion inside the hollow tube 5, so that the hollow tube 5 is driven to move up and down, and the rack 7 fixed on one side of the hollow tube 5 will follow the movement of the hollow tube 5 along the first fixed rod 6, thereby driving the meshed second gear 9 Rotate, thereby making the rack 7 on the other side move in the opposite direction, then open the nozzle 11 again, and the gas from the gas tank 13 along the gas pipe 14 and the hose 12 enters the nozzle 11, transporting the gas to the interior, and the gas enters the processing chamber 15 through the one-way valve 16. When the gas in the processing chamber 15 reaches a certain concentration, the nozzle 11 is closed, and the gas in the processing chamber 15 is ignited. The nozzle 11 is fixed on the rack 7 and moves up and down, so that different heights can be filled with gas, reducing the accumulation of gas at the bottom and improving the efficiency of gas transportation. A universal wheel 21 is also provided at the bottom of the combustion furnace 1 for easy movement.

[0035] Reference Figure 2 、 Figure 4 and Figure 6 The lifting mechanism 2 includes a first motor 201, the bottom end of the first motor 201 is fixedly connected to the bottom side of the interior of the combustion furnace 1, and the output end of the first motor 201 is fixedly connected to a worm 202. The left and right sides of the interior of the combustion furnace 1 are rotatably connected to the same bidirectional screw rod 204, and the middle part of the outer wall of the bidirectional screw rod 204 is fixedly connected to a worm gear 203. The worm gear 203 and the worm 202 are meshed and connected. The left and right sides of the outer wall of the bidirectional screw rod 204 are threadedly connected to inclined plane blocks 205. The tops of the two inclined plane blocks 205 are respectively provided with a first slide groove 206, and the insides of the two first slide grooves 206 are slidably connected to a first connecting rod 207. The tops of the two first connecting rods 207 are fixedly connected to the same gas cabin door 208, and the top of the gas cabin door 208 passes through the combustion furnace 1; the left and right sides of the inner bottom end of the combustion furnace 1 are provided with a second slide groove 20, and the insides of the two second slide grooves 20 are slidably connected to sliders 19, and the two sliders 19 are respectively fixedly connected to the corresponding inclined plane blocks 205;

[0036] Specifically, the controller 25 turns on the first motor 201, which will drive the worm 202 connected to it to work. The rotation of the worm 202 will cause the meshing worm wheel 203 to rotate accordingly. The worm wheel 203 is fixed on the bidirectional screw rod 204. Therefore, when the worm wheel 203 rotates, the bidirectional screw rod 204 will also rotate together. As the bidirectional screw rod 204 rotates, the inclined blocks 205 on both sides will be acted upon by the force and gradually approach the same side, thereby applying a reverse force to the first connecting rod 207. This reverse force will cause the first connecting rod 207 to move upward along the first slide groove 206, thereby pushing the gas compartment door 208 fixed on the upper side to open, making it convenient for staff to maintain and replace damaged internal parts, thereby ensuring the normal operation and safe use of the equipment.

[0037] Reference Figure 1 and Figure 5 A push handle 23 is fixedly connected to the left side of the combustion furnace 1, and a plurality of anti-slip sleeves 24 are fixedly connected to the outer wall of the push handle 23. A plurality of universal wheels 21 are fixedly connected at equal intervals to the bottom of the combustion furnace 1; hinges 28 are fixedly connected to the upper and lower sides of the left end of the combustion furnace 1, and a side door 27 is provided on the left side of the combustion furnace 1. The side door 27 is rotatably connected to the left side of the combustion furnace 1 through the hinge 28, and a pull ring 29 is fixedly connected to the left front end of the side door 27. A maintenance port 22 is provided in the upper and middle part of the front side of the combustion furnace 1, and an air vent 30 is provided on the front side of the side door 27;

[0038] Specifically, the handle 23 can be used to push the universal wheel 21 to push the combustion furnace 1. A storage compartment is provided at the bottom of the combustion furnace 1, and the side door 27 can be opened for use through the pull ring 29. The side door 27 is provided with multiple air holes 30 to maintain air circulation inside and outside to prevent oxidation of internal parts.

[0039] Reference Figure 1 and Figure 2 A controller 25 is fixedly connected to the middle and lower part of the front side of the combustion furnace 1, and the controller 25 is electrically connected to the first motor 201, the second motor 3 and the nozzle 11 respectively;

[0040] Specifically, a controller 25 is installed on the front side of the combustion furnace 1, and the operation of the first motor 201, the second motor 3 and the nozzle 11 can be controlled by the controller 25. The models of the first motor 201 and the second motor 3 are both MSKO76C-0450, and the model of the nozzle 11 is SMP437.

[0041] Working principle: Before use, the push handle 23 can be pushed to use the universal wheel 21 to move the device to the designated position and placed together with the gas tank 13. When in use, the furnace cover 26 is first opened, and the material to be processed is placed in the processing chamber 15. Then the furnace cover 26 is closed, and the second motors 3 on both sides are started. The output end of the second motor 3 will drive the rotating disk 4 to rotate together, and the second connecting rod 17 will drive the hollow tube 5 to move up and down. One end of the rack 7 is fixed to the hollow tube 5 and moves synchronously along the first fixed rod 6. At this time, the second gear 9 meshing with it is driven, thereby driving the rack 7 on the other side to move in the opposite direction. At this time, the nozzle 11 is started to extract gas from the gas tank 13 to transport gas to the inside of the combustion furnace 1. The nozzle 11 moving up and down can allow the one-way valves 16 at different heights to absorb gas evenly, thereby improving the efficiency of gas transportation;

[0042] And when the internal parts of the combustion furnace 1 are damaged and need to be replaced and repaired, the first motor 201 is started to work on the worm 202, and the meshing worm wheel 203 will rotate accordingly, and the bidirectional screw 204 fixed on the worm wheel 203 will rotate together. At this time, the inclined blocks 205 on both sides will approach the same side. When the inclined block 205 moves, it will give the first connecting rod 207 an opposite force, causing it to slide upward along the first slide groove 206, thereby pushing the gas compartment door 208 fixed on the upper side of the first connecting rod 207 to open, and then the staff can replace the damaged internal parts.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas-fired high-temperature heat treatment furnace, comprising a combustion furnace (1), characterized in that: The middle and upper parts of the left and right sides of the combustion furnace (1) are fixedly connected to the second motor (3), the output ends of the two second motors (3) pass through the combustion furnace (1) and are fixedly connected to the rotating disk (4), the adjacent sides of the two rotating disks (4) are fixedly connected to the second connecting rod (17), the outer sides of the two second connecting rods (17) are slidably connected to the hollow tube (5), the inner side of the combustion furnace (1) is fixedly connected to the partition (18), the front and rear ends of the left and right sides of the top of the partition (18) are equidistantly fixedly connected to the first fixed rod (6), the upper ends of the plurality of first fixed rods (6) are fixedly connected to the combustion furnace (1), the outer sides of the plurality of first fixed rods (6) are slidably connected to the rack (7), the left and right sides of the top of the partition (18) are fixedly connected to the second A fixing rod (8), the ends of the two second fixing rods (8) that are away from each other are rotatably connected to the second gear (9), the two second gears (9) are respectively meshed with the corresponding racks (7), the adjacent sides of the two hollow tubes (5) are respectively fixedly connected to the corresponding side of the rack (7), the adjacent sides of the plurality of racks (7) are fixedly connected to the third fixing rod (10), one end of the plurality of third fixing rods (10) is fixedly connected to the nozzle (11), the bottoms of the plurality of nozzles (11) are connected to the hose (12), the middle part of the top end of the partition (18) is rotatably connected to the processing cabin (15), and a lifting mechanism (2) is provided at the front end of the inner bottom of the combustion furnace (1), and the lifting mechanism (2) is used to open the cabin door to facilitate maintenance by the staff.

2. A gas-fired high-temperature heat treatment furnace according to claim 1, characterized in that: The lifting mechanism (2) comprises a first motor (201), the bottom end of the first motor (201) is fixedly connected to the bottom side of the interior of the combustion furnace (1), the output end of the first motor (201) is fixedly connected to a worm (202), the left and right sides of the interior of the combustion furnace (1) are rotatably connected to the same bidirectional screw rod (204), the middle part of the outer wall of the bidirectional screw rod (204) is fixedly connected to a worm wheel (203), the worm wheel (203) and the worm (202) are meshed and connected, the left and right sides of the outer wall of the bidirectional screw rod (204) are both threadedly connected to inclined plane blocks (205), the tops of the two inclined plane blocks (205) are both provided with first sliding grooves (206), the insides of the two first sliding grooves (206) are both slidably connected to first connecting rods (207), the tops of the two first connecting rods (207) are fixedly connected to the same gas cabin door (208), and the top of the gas cabin door (208) passes through the combustion furnace (1).

3. The gas-fired high-temperature heat treatment furnace according to claim 1, characterized in that: A gas tank (13) is provided at the rear side of the combustion furnace (1), and gas pipes (14) are connected to the left and right sides of the top of the gas tank (13). One end of the two gas pipes (14) passes through the combustion furnace (1) and is respectively connected to the corresponding hoses (12).

4. The gas-fired high-temperature heat treatment furnace according to claim 1, characterized in that: A push handle (23) is fixedly connected to the left side of the combustion furnace (1), and a plurality of anti-slip sleeves (24) are fixedly connected to the outer wall of the push handle (23). A plurality of universal wheels (21) are fixedly connected at equal distances at the four corners of the bottom of the combustion furnace (1).

5. The gas-fired high-temperature heat treatment furnace according to claim 1, characterized in that: The upper and lower sides of the left end of the combustion furnace (1) are fixedly connected with hinges (28), the left side of the combustion furnace (1) is provided with a side door (27), the side door (27) is rotatably connected to the left side of the combustion furnace (1) through the hinge (28), the left front end of the side door (27) is fixedly connected with a pull ring (29), a maintenance port (22) is provided in the middle and upper part of the front side of the combustion furnace (1), and an air vent (30) is provided on the front side of the side door (27).

6. The gas-fired high-temperature heat treatment furnace according to claim 1, characterized in that: A controller (25) is fixedly connected to the middle and lower portion of the front side of the combustion furnace (1), and the controller (25) is electrically connected to the first motor (201), the second motor (3) and the nozzle (11) respectively.

7. The gas-fired high-temperature heat treatment furnace according to claim 1, characterized in that: The top end of the processing chamber (15) passes through the combustion furnace (1), and a plurality of connecting pipes (31) are equidistantly provided around the outer wall of the processing chamber (15). The outer walls of the plurality of connecting pipes (31) are all provided with one-way valves (16), and the top end of the processing chamber (15) is threadedly connected to a furnace cover (26).

8. The gas-fired high-temperature heat treatment furnace according to claim 1, characterized in that: Second chutes (20) are provided on the left and right sides of the inner bottom of the combustion furnace (1), and sliders (19) are slidably connected inside the two second chutes (20), and the two sliders (19) are fixedly connected to corresponding inclined plane blocks (205) respectively.

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