CN220183346U - Walking beam type heat treatment furnace - Google Patents
Walking beam type heat treatment furnace Download PDFInfo
- Publication number
- CN220183346U CN220183346U CN202321600042.XU CN202321600042U CN220183346U CN 220183346 U CN220183346 U CN 220183346U CN 202321600042 U CN202321600042 U CN 202321600042U CN 220183346 U CN220183346 U CN 220183346U
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- furnace
- furnace door
- heat treatment
- door
- roller
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 65
- 239000010959 steel Substances 0.000 claims abstract description 65
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000010079 rubber tapping Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
Abstract
The utility model discloses a walking beam type heat treatment furnace, which comprises a furnace body, a furnace door, a movable beam and a fixed beam, and is characterized in that: the furnace door is connected to one side of the furnace body in a sliding way, a lifting rope is arranged at the upper part of the furnace door, a speed reducing motor is arranged at the upper part of the furnace body, and the lifting rope is matched with a rope wheel arranged on a speed reducing motor shaft; the lower side of the furnace door is provided with a roller which is matched with the movable beam or the steel plate; the device also comprises a counterweight device; the counterweight device comprises a counterweight block, a steel wire rope is hung above the counterweight block, the steel wire rope bypasses a pulley block arranged on the upper portion of the furnace body, and the other end of the steel wire rope is fixed on two sides of the furnace door. The utility model can greatly reduce heat loss in the furnace, improve the heat treatment effect of the steel plate, improve the heat treatment production efficiency and reduce the energy consumption.
Description
Technical Field
The utility model belongs to the technical field of heat treatment equipment, and relates to a walking beam type heat treatment furnace.
Background
The walking beam type heat treatment furnace completes continuous conveying of the steel plates by means of the circulating operation of ascending, advancing, descending and retreating of the movable beams, and as the steel plates are continuously discharged and the discharging speed is consistent with the travelling speed of the movable beams in the furnace, the furnace door is in an opened state for a long time and in a closed state for a short time. Therefore, heat of a heat preservation section of the heat treatment furnace is dissipated from the furnace door, so that the heat preservation effect is poor, the heat treatment effect can be achieved only by increasing the heat treatment time, the fuel consumption is increased, and the production efficiency is reduced.
In the prior art, a furnace door of a heat treatment furnace is connected to a furnace body through a hinge above the furnace door, the lifting of the furnace door is realized through an operator controlling a motor driving mechanism at the top of the furnace body, the furnace door is usually opened before the steel plate is discharged until the tail part of the steel plate is completely discharged, the furnace door is closed after the steel plate is completely discharged, the furnace door is always in an opened state in the discharging process of the steel plate, and the opening degree of the furnace door is larger than the sum of the lifting height of a movable beam and the thickness of the steel plate. When the next steel plate is discharged from the furnace, the furnace door is opened again, and the operation is repeated. Thus, in actual production, the operation mode that the furnace door is in an opened state and is not closed is formed.
Disclosure of Invention
The utility model aims to provide a walking beam type heat treatment furnace, which solves the defects in the prior art; the driving force of the movable beam is utilized to realize synchronous lifting of the furnace door and the movable beam and control the opening degree of the furnace door to a small degree.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a walking beam formula heat treatment furnace, includes furnace body, furnace gate, fly beam and fixed beam, its characterized in that: the furnace door is connected to one side of the furnace body in a sliding way, a lifting rope is arranged at the upper part of the furnace door, a speed reducing motor is arranged at the upper part of the furnace body, and the lifting rope is matched with a rope wheel arranged on a speed reducing motor shaft; the lower side of the furnace door is provided with a roller which is matched with the movable beam or the steel plate; the device also comprises a counterweight device; the counterweight device comprises a counterweight block, a steel wire rope is hung above the counterweight block, the steel wire rope bypasses a pulley block arranged on the upper portion of the furnace body, and the other end of the steel wire rope is fixed on two sides of the furnace door.
Further: the speed reducing motor is provided with a connecting shaft, and two ends of the connecting shaft are connected with the furnace body through bearing seats; the connecting shaft is provided with a rope wheel.
Further: guide wheels are arranged on two sides of the furnace door, and guide rails matched with the guide wheels are arranged on two sides of the furnace body.
Further: the movable beam is connected with the furnace body through a driving device, and the driving device comprises a lifter and a horizontal shifter.
Further: the lower part of the furnace door is provided with a roller groove, the roller is arranged in the roller groove through a roller shaft, and the lower rim of the roller is lower than the lower rim of the furnace door.
Further: a guide plate matched with the steel plate is arranged at the lower end of the furnace door towards the inner side of the furnace body; the guide plate is obliquely upwards arranged, the upper end of the guide plate is higher than the upper edge of the steel plate, and the lower end of the guide plate is slightly higher than the lower rim of the roller.
Compared with the prior art, the utility model has the beneficial effects that: the bottom of the furnace door is provided with a pair of rollers, the furnace door falls on the movable beam or the fixed beam when the steel plate is not discharged, and the furnace door falls on the steel plate when tapping. Along with the whole advancing process of the movable beam, the furnace door and the movable beam are in a combined state and keep synchronous movement. Because the furnace door is in a closed state, the heat loss in the furnace can be greatly reduced, the heat treatment effect of the steel plate is improved, the heat treatment production efficiency is improved, and the energy consumption is reduced. When the head part of the steel plate is ready to be discharged and the tail part of the steel plate leaves the furnace door, an operator controls the transmission mechanism to open and close the furnace door, and the furnace door is always in a closed state in other processes.
Drawings
FIG. 1 is a front view of the present utility model without tapping;
FIG. 2 is a side view of the utility model in tapping;
FIG. 3 is a schematic view of the structure of the oven door of the present utility model.
The serial numbers in the figures illustrate: the furnace comprises a furnace body 1, a furnace door 2, a movable beam 3, a fixed beam 4, a lifting rope 5, a gear motor 6, a rope wheel 7, a roller 8, a steel plate 9, a balancing weight 10, a pulley block 11, a steel wire rope 12, a connecting shaft 13, a bearing seat 14, a guide wheel 15, a guide rail 16 and a guide plate 17.
Detailed Description
1-3 show a walking beam type heat treatment furnace with the structure of the utility model, which comprises a furnace body 1, a furnace door 2, a movable beam 3 and a fixed beam 4 which are arranged in the furnace body, wherein the furnace door is slidingly connected to one side of the furnace body, is matched with an opening of the furnace body and can move up and down to realize door opening and door closing; the upper part of the furnace door is connected with a lifting rope 5 through a lifting rope seat, the upper part of the furnace body is provided with a speed reducing motor 6, and the lifting rope 5 is matched with a rope wheel 7 arranged on a speed reducing motor shaft to drive the furnace door to lift through the speed reducing motor;
the lower side of the furnace door is provided with a roller 8, the roller 8 is positioned above the movable beam 3 and is in rolling fit with the upper surface of the movable beam 3 or the steel plate 9, and the roller 8 is matched with the movable beam when the steel plate is not arranged and is matched with the steel plate when the steel plate is arranged;
the device also comprises a counterweight device; the counterweight device comprises counterweight blocks 10 positioned on two sides of the furnace door, a steel wire rope 12 is hung above the counterweight blocks, the steel wire rope bypasses pulley blocks 11 arranged on the upper part of the furnace body, and the other ends of the steel wire rope are fixed on two sides of the furnace door.
Preferably: the pulley block consists of two fixed pulleys, and the two fixed pulleys are respectively positioned above the balancing weight and the furnace door to realize the direction change of the steel wire rope.
Preferably: a connecting shaft 13 is coaxially arranged on the gear motor 6, one end of each connecting shaft is matched with the gear motor, and the remaining ends of the two connecting shafts are connected with the furnace body through a bearing seat 14; the sheave 7 is provided on the connecting shaft.
Preferably: guide wheels 15 are arranged on two sides of the furnace door, and guide rails 16 matched with the guide wheels are arranged on two sides of the tapping hole of the furnace body. Further, the guide rail is channel steel, the opening is matched with the guide wheel and is slightly larger than the outer diameter of the guide wheel, and the furnace door is matched with the guide rail through the guide wheel so as to realize sliding fit with the furnace body, thereby realizing door opening and door closing.
Preferably: the movable beam is a stepping movable beam, and is connected with the furnace body through a driving device, and the driving device comprises a lifter and a horizontal shifter. Further, the driving device is a cam mechanism.
Preferably: the lower part of the furnace door is provided with a roller groove, the roller is arranged in the roller groove through a roller shaft, and the lower rim of the roller is lower than the lower rim of the furnace door.
Preferably: a guide plate 17 matched with the steel plate is arranged at the lower end of the furnace door towards the inner side of the furnace body; the guide plate is obliquely upwards arranged, the upper end of the guide plate is higher than the upper edge of the steel plate, and the lower end of the guide plate is slightly higher than the lower rim of the roller. The guide plate can be a piece with a larger size, is welded at the lower part of the furnace door and is slightly smaller than the length of the lower edge of the furnace door; also in smaller size blocks, corresponding to the position of the rollers.
The working process of the structure of the utility model is as follows:
when the steel plate is in the furnace and is not in a furnace discharging state (namely, does not pass through the position below the furnace door), the furnace door falls on the fixed beam, the movable beam slowly rises from the starting point, the roller and the furnace door at the bottom are jacked up, the furnace door rises in the guide rail through the guide wheel, and the furnace door stops after rising to the limit (namely, the highest point of the movable beam); the movable beam advances, the roller rolls on the movable beam, and the furnace door is kept static in the horizontal direction; the movable beam descends after horizontally moving in place, the furnace door descends along with the movable beam and falls on the fixed beam again, and the movable beam is separated from the roller; the movable beam retreats and returns to the starting point, and the movable beam continuously moves.
When the steel plate head advances to a state close to the furnace door and the head is discharged, an operator starts the motor transmission mechanism to lift the furnace door, and when the movable beam conveys the steel plate head out of the furnace door, the operator starts the motor transmission mechanism to drop the furnace door on the steel plate. The movable beam rises to jack up the steel plate and the furnace door, the furnace door rises in the guide rail through the guide wheel, and the furnace door stops after rising to limit; the movable beam advances, the roller rolls on the surface of the steel plate, and the furnace door is kept static in the horizontal direction; the movable beam descends, the furnace door is pressed on the steel plate to descend along with the movable beam, the steel plate falls on the fixed beam and the conveying roller way, and the movable beam is separated from the steel plate; the movable beam retreats and returns to the starting point, and the movable beam continuously moves. Under this state, when being provided with the guide board on the furnace gate, the head of steel sheet acts on the inclined plane of guide board, and the guide board can drive the furnace gate automatically and rise to reduce artificial operation.
When the tail part of the steel plate is close to the furnace door and the tail part is in a furnace discharging state, the movable beam is lifted, the steel plate and the furnace door are jacked, the furnace door is lifted in the guide rail through the guide wheel, and the furnace door is stopped after being lifted to limit; when the steel plate tail is separated from the roller wheels, the counterweight wheels on the two sides of the furnace door play a role in holding, and the furnace door falls on the movable beam, so that equipment damage is avoided; the movable beam descends, the furnace door descends along with the movable beam, when the movable beam descends to be lower than the fixed beam, the movable beam is separated from the steel plate, the steel plate falls on the conveying roller way to be conveyed to the cooling bed, and the furnace door falls on the fixed beam; the movable beam retreats and returns to the starting point.
In this solution, the structures not described in detail are all in the prior art, and the connection relationship between the components not described in detail may be a common connection manner such as welding or bolting. After the counter weight, the weight of the furnace door is slightly larger than the sum of the weights of the counter weights, so that the furnace door can freely fall when not pulled, and the falling speed and the impact force are in the bearing range of the steel plate and the movable beam, so that the equipment use and the steel plate quality are not affected. The lifting rope is used for lifting the furnace door, but the furnace door can be automatically lifted under the action of a steel plate and the like, and the lifting rope compensates corresponding displacement through curling and the like.
In the structure of the utility model, the pair of rollers are arranged at the bottom of the furnace door, so that the furnace door falls on the movable beam or the fixed beam when the steel plate is not discharged, and the furnace door falls on the steel plate when tapping. Along with the whole advancing process of the movable beam, the furnace door and the movable beam are in synchronous lifting movement, so that the closing state of the furnace door is realized to the maximum extent. Because the furnace door is mostly in a closed state and is effectively matched with the upper surface of the steel plate when being opened, the gap is small, thereby greatly reducing the heat loss in the furnace, improving the heat treatment effect of the steel plate, improving the heat treatment production efficiency and reducing the energy consumption.
Claims (6)
1. The utility model provides a walking beam formula heat treatment furnace, includes furnace body, furnace gate, fly beam and fixed beam, its characterized in that: the furnace door is connected to one side of the furnace body in a sliding way, a lifting rope is arranged at the upper part of the furnace door, a speed reducing motor is arranged at the upper part of the furnace body, and the lifting rope is matched with a rope wheel arranged on a speed reducing motor shaft;
the lower side of the furnace door is provided with a roller which is matched with the movable beam or the steel plate;
the device also comprises a counterweight device; the counterweight device comprises a counterweight block, a steel wire rope is hung above the counterweight block, the steel wire rope bypasses a pulley block arranged on the upper portion of the furnace body, and the other end of the steel wire rope is fixed on two sides of the furnace door.
2. A walking beam heat treatment furnace according to claim 1, wherein: the speed reducing motor is provided with a connecting shaft, and two ends of the connecting shaft are connected with the furnace body through bearing seats; the rope sheave is arranged on the connecting shaft.
3. A walking beam heat treatment furnace according to claim 1, wherein: guide wheels are arranged on two sides of the furnace door, and guide rails matched with the guide wheels are arranged on two sides of the furnace body.
4. A walking beam heat treatment furnace according to claim 1, wherein: the movable beam is connected with the furnace body through a driving device, and the driving device comprises a lifter and a horizontal shifter.
5. A walking beam heat treatment furnace according to claim 1, wherein: the lower part of the furnace door is provided with a roller groove, the roller is arranged in the roller groove through a roller shaft, and the lower rim of the roller is lower than the lower rim of the furnace door.
6. A walking beam heat treatment furnace according to claim 1, wherein: a guide plate matched with the steel plate is arranged at the lower end of the furnace door towards the inner side of the furnace body; the guide plate is obliquely upwards arranged, the upper end of the guide plate is higher than the upper edge of the steel plate, and the lower end of the guide plate is slightly higher than the lower rim of the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321600042.XU CN220183346U (en) | 2023-06-23 | 2023-06-23 | Walking beam type heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321600042.XU CN220183346U (en) | 2023-06-23 | 2023-06-23 | Walking beam type heat treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220183346U true CN220183346U (en) | 2023-12-15 |
Family
ID=89109475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321600042.XU Active CN220183346U (en) | 2023-06-23 | 2023-06-23 | Walking beam type heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220183346U (en) |
-
2023
- 2023-06-23 CN CN202321600042.XU patent/CN220183346U/en active Active
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