CN219347330U - Free lifting type furnace door pressing device - Google Patents
Free lifting type furnace door pressing device Download PDFInfo
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- CN219347330U CN219347330U CN202320318628.0U CN202320318628U CN219347330U CN 219347330 U CN219347330 U CN 219347330U CN 202320318628 U CN202320318628 U CN 202320318628U CN 219347330 U CN219347330 U CN 219347330U
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- furnace door
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Abstract
The utility model relates to a free lifting type furnace door pressing device which comprises a furnace door and furnace door upright posts, wherein the furnace door upright posts are arranged on the left side and the right side of the furnace door, each side of the furnace door upright post is connected with a furnace door pressing assembly, the furnace door pressing assembly is arranged at the lower end of the furnace door upright post, the furnace door pressing assembly comprises a cylinder, a vertical connecting rod, a pressing connecting rod, a supporting rod and a pressing wheel, a telescopic rod of the cylinder is connected with the middle part of the vertical connecting rod, the middle part and two ends of the vertical connecting rod are respectively connected with the pressing connecting rod, each pressing connecting rod is provided with a supporting rod, one end of each supporting rod is fixed on the furnace door upright post, the other end of each supporting rod is hinged with the corresponding pressing connecting rod, the end part of each pressing connecting rod, which is close to the furnace door, is connected with the pressing wheel, and the top of the furnace door is connected with a furnace door lifting assembly. The furnace door can be stopped at any height, the furnace door is tightly attached to the furnace mouth, the contact stress of the rollers at the pressing point is uniform, the sealing is tight, and the flame and the temperature are effectively prevented from rising to the furnace top.
Description
Technical Field
The utility model relates to the technical field of heating furnace equipment, in particular to a free lifting type furnace door pressing device.
Background
The furnace temperature of the chamber furnace is very high, so that the sealing and compaction of the furnace door becomes a very troublesome problem in the use of various domestic heating furnaces. The existing common pressing mechanism uses the dead weight of the furnace door and the component force generated by the inclined plane of 30-40 degrees to press the furnace door frame, but the furnace door seal is only suitable for a fully-closed furnace, and is not suitable for some shaft and plate workpieces because only the end part of the shaft and plate workpieces are heated and the rest parts are exposed outside the heating furnace without heating.
For some shaft and plate workpieces only heating the end head part, according to the different sizes of the workpieces, the furnace door needs to be stopped at any height, and the primary purpose of how to realize the close fit of the furnace door and the furnace mouth at any height, even stress of the pressing point, tight sealing and prevention of flame and temperature rising to the furnace top is realized.
Disclosure of Invention
The utility model aims to overcome the defects, and provides the free lifting type furnace door pressing device, wherein the furnace door pressing component and the furnace door lifting component are matched to alternately act, the furnace door can stop at any height position, the furnace door is tightly attached to the furnace mouth, the contact stress of the rollers at the pressing points is uniform, the sealing is tight, and the flame and the temperature are effectively prevented from rising towards the furnace top.
The purpose of the utility model is realized in the following way:
the utility model provides a free lift type furnace gate closing device, includes furnace gate and furnace gate stand, the furnace gate left and right sides is equipped with the furnace gate stand, and a furnace gate hold-down assembly is connected to every side furnace gate stand, and the furnace gate hold-down assembly sets up the lower extreme at the furnace gate stand, the furnace gate holds-down assembly includes cylinder, vertical connecting rod, compresses tightly connecting rod, bracing piece and pinch roller, the middle part of vertical connecting rod is connected to the telescopic link of cylinder, a pinch roller is respectively connected to vertical connecting rod middle part and both ends portion, and every pinch roller is furnished with a bracing piece, bracing piece one end is fixed on the furnace gate stand, and the other end articulates the corresponding pinch roller that compresses tightly, the end connection pinch roller that the pinch roller is close to the furnace gate, furnace gate lifting assembly is connected at the top of furnace gate.
Preferably, the furnace door lifting assembly comprises a cross beam, an electric hoist, a vertical pulley, a steel wire rope and sleeve roller chains, wherein the cross beam is arranged at the tops of two furnace door stand columns, the electric hoist is arranged on one side of the cross beam, the electric hoist is connected with the two sleeve roller chains through the steel wire rope, the steel wire rope is guided through the vertical pulley, a driving roller and two driven rollers are arranged on the cross beam, the driving roller is provided with two driving chain wheels, each driven roller is provided with one driven chain wheel, and the two sleeve roller chains are connected with the tops of the furnace door.
Preferably, each sleeve roller chain sequentially bypasses a driving chain wheel on the driving roller and a driven chain wheel on the corresponding driven roller and then is connected with the furnace door.
Preferably, the two sleeve roller chains are distributed left and right and are staggered back and forth.
Preferably, the lifting range of the furnace door is 80+/-5 cm, and each pressing wheel keeps contact with the furnace door when the furnace door is pressed.
Preferably, a fire baffle plate is arranged between the two furnace door upright posts, and the fire baffle plate is positioned at the upper part of the furnace door.
Preferably, the cylinder is fixed on the furnace door upright post through a cylinder seat, and the vertical pulley is fixed on the furnace door upright post through a pulley bracket.
Preferably, the pressing wheel is connected with the pressing connecting rod through a pin shaft.
The beneficial effects of the utility model are as follows:
the furnace door pressing assembly and the furnace door lifting assembly are matched together, the furnace door is lifted after being loosened in the lifting process of the furnace door, and the furnace door is pressed after being lifted in place;
the compression connecting rods are uniformly distributed in the vertical direction, compression points are uniformly stressed, in addition, the compression points are in contact with the furnace door by adopting a freely rotating compression wheel, so that the furnace door is prevented from being eccentrically tightly stuck to the furnace mouth and is not tightly sealed, the furnace door and the two sides of the furnace mouth are uniformly distributed, the tight sealing is ensured, flame and temperature are prevented from rising towards the furnace top, the safety is high, and the service lives of the cross beam and the electric hoist are prolonged;
a fire baffle plate is arranged between the two furnace door upright posts to further prevent flame and temperature from rising to the furnace top.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a cross-sectional view A-A of fig. 1.
Wherein: a furnace door 1; furnace door upright posts 2; a cylinder 3; a vertical link 4; a compression link 5; a support bar 6; a pinch roller 7; a cross beam 8; an electric hoist 9; a vertical pulley 10; a wire rope 11; a bush roller chain 12; a cylinder block 13; a pulley bracket 14; and a flame retardant plate 15.
Description of the embodiments
Referring to fig. 1 and 2, the utility model relates to a free lifting type furnace door pressing device, which comprises a furnace door 1, furnace door upright posts 2, furnace door pressing assemblies and furnace door lifting assemblies, wherein the furnace door upright posts 2 are arranged on the left side and the right side of the furnace door 1, each side of the furnace door upright posts 2 is connected with one furnace door pressing assembly, the furnace door pressing assemblies are arranged at the lower ends of the furnace door upright posts 2, each furnace door pressing assembly comprises a cylinder 3, a vertical connecting rod 4, pressing connecting rods 5, a supporting rod 6 and pressing wheels 7, a telescopic rod of the cylinder 3 is connected with the middle part of the vertical connecting rod 4, the middle part and two ends of the vertical connecting rod 4 are respectively connected with one pressing connecting rod 5, each pressing connecting rod 5 is provided with a supporting rod 6, one end of each supporting rod 6 is fixed on the furnace door upright posts 2, the other end of each pressing connecting rod 5 is hinged with the corresponding pressing connecting rod 5, the end of each pressing connecting rod 5 close to the furnace door 1 is connected with the pressing wheels 7 through a pin shaft, and the pressing wheels 7 are connected with the pressing connecting rods 5.
The furnace door lifting assembly comprises a cross beam 8, an electric hoist 9, vertical pulleys 10, steel wire ropes 11 and sleeve roller chains 12, wherein the cross beam 8 is erected at the tops of two furnace door upright posts 2, the electric hoist 9 is arranged on one side of the cross beam 8, the electric hoist 9 is connected with the two sleeve roller chains 12 through the steel wire ropes 11, the steel wire ropes 11 are guided through the vertical pulleys 10, a driving roller and two driven rollers are arranged on the cross beam 8, the driving roller is provided with two driving sprockets, each driven roller is provided with one driven sprocket, the two sleeve roller chains 12 are connected with the tops of the furnace door 1, and the two sleeve roller chains 12 are distributed left and right and are staggered front and back.
Each sleeve roller chain 12 sequentially bypasses a driving chain wheel on the driving roller and a driven chain wheel on the corresponding driven roller and then is connected with the furnace door 1.
The air cylinder 3 is fixed on the furnace door upright post 2 through an air cylinder seat 13, and the vertical pulley 10 is fixed on the furnace door upright post 2 through a pulley bracket 14.
After being guided by the vertical pulley 10, the driving chain wheel and the driven chain wheel, the electric hoist 9 and the furnace door 1 are synchronous to be lifted up and down, namely the electric hoist 9 is lifted, and the furnace door 1 is lifted; the electric hoist 9 descends and the furnace door 1 descends.
When the furnace door needs to be opened at a certain height, the air cylinders 3 at the two sides of the furnace door 1 are contracted backwards, the pressing wheels 7 pressed on the furnace door 1 by the pressing connecting rods 5 are moved forwards, the sealing is released, and the furnace door is loosened;
the electric hoist 9 promotes, furnace gate 1 rises, when furnace gate 1 reaches the high electric hoist 9 stop work of required height, cylinder 3 pushes forward, press the tight pulley 7 of drive through compressing tightly connecting rod 5 with furnace gate 1 inwards extrudees, because compressing tightly connecting rod 5 evenly distributed in vertical direction, the pinch point atress is even, the pinch point adopts free pivoted pinch pulley 7 to contact with furnace gate 1 in addition, press by traditional arc point to change into rolling arc to press, this purpose is in order to prevent that the eccentric tight stove mouth of furnace gate from sealing inaccurately, do the both sides tight face distribution of furnace gate and stove mouth, ensure that the seal is tight, prevent flame and temperature to rise towards the furnace roof, the security is high, and the life of crossbeam and electric hoist has been prolonged.
The pressing connecting rods 5 on the same side are connected with a vertical connecting rod 4, so that the rapid synchronous pressing of the furnace door is realized, and the pressing force is distributed uniformly.
The lifting range of the furnace door 1 is 80+/-5 cm, and when the furnace door is pressed, each pressing wheel keeps contact with the furnace door.
A fire baffle 15 is arranged between the two furnace door uprights 2, and the fire baffle 15 is positioned on the furnace door 1 to further prevent flame and temperature from rising towards the furnace top.
In addition to the above embodiments, the present utility model also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present utility model.
Claims (8)
1. The utility model provides a free lift type furnace gate closing device, includes furnace gate (1) and furnace gate stand (2), furnace gate (1) left and right sides is equipped with furnace gate stand (2), and a furnace gate hold-down assembly is connected to every side furnace gate stand (2), and furnace gate hold-down assembly sets up in the lower extreme of furnace gate stand (2), its characterized in that: the furnace door compacting assembly comprises a cylinder (3), vertical connecting rods (4), compacting connecting rods (5), supporting rods (6) and compacting wheels (7), wherein the telescopic rods of the cylinder (3) are connected with the middle parts of the vertical connecting rods (4), the middle parts and two end parts of the vertical connecting rods (4) are respectively connected with the compacting connecting rods (5), each compacting connecting rod (5) is provided with one supporting rod (6), one end of each supporting rod (6) is fixed on a furnace door upright post (2), the other end of each supporting rod is hinged to the corresponding compacting connecting rod (5), the end part of each compacting connecting rod (5) close to a furnace door (1) is connected with the compacting wheels (7), and the top of the furnace door (1) is connected with a furnace door lifting assembly.
2. The free-lifting oven door pressing device according to claim 1, characterized in that: the furnace door lifting assembly comprises a cross beam (8), an electric hoist (9), a vertical pulley (10), a steel wire rope (11) and sleeve roller chains (12), wherein the cross beam (8) is erected at the tops of two furnace door upright posts (2), the electric hoist (9) is arranged on one side of the cross beam (8), the electric hoist (9) is connected with the two sleeve roller chains (12) through the steel wire rope (11), the steel wire rope (11) is guided through the vertical pulley (10), a driving roller and two driven rollers are arranged on the cross beam (8), the driving roller is provided with two driving sprockets, each driven roller is provided with a driven sprocket, and the two sleeve roller chains (12) are connected with the top of the furnace door (1).
3. The free-lifting oven door pressing device according to claim 2, characterized in that: each sleeve roller chain (12) sequentially bypasses a driving chain wheel on the driving roller and a driven chain wheel on the corresponding driven roller and then is connected with the furnace door (1).
4. The free-lifting oven door pressing device according to claim 3, characterized in that: the two sleeve roller chains (12) are distributed left and right and are staggered back and forth.
5. The free-lifting oven door pressing device according to claim 1 or 2, characterized in that: the lifting range of the furnace door (1) is 80+/-5 cm, and when the furnace door is pressed, each pressing wheel (7) keeps contact with the furnace door (1).
6. The free-lifting oven door pressing device according to claim 1 or 2, characterized in that: a fire baffle plate (15) is arranged between the two furnace door upright posts (2), and the fire baffle plate (15) is positioned at the upper part of the furnace door (1).
7. The free-lifting oven door pressing device according to claim 2, characterized in that: the air cylinder (3) is fixed on the furnace door upright post (2) through an air cylinder seat (13), and the vertical pulley (10) is fixed on the furnace door upright post (2) through a pulley bracket (14).
8. The free-lifting oven door pressing device according to claim 1, characterized in that: the pressing wheel (7) is connected with the pressing connecting rod (5) through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320318628.0U CN219347330U (en) | 2023-02-27 | 2023-02-27 | Free lifting type furnace door pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320318628.0U CN219347330U (en) | 2023-02-27 | 2023-02-27 | Free lifting type furnace door pressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219347330U true CN219347330U (en) | 2023-07-14 |
Family
ID=87094976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320318628.0U Active CN219347330U (en) | 2023-02-27 | 2023-02-27 | Free lifting type furnace door pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219347330U (en) |
-
2023
- 2023-02-27 CN CN202320318628.0U patent/CN219347330U/en active Active
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