CN202792985U - Door structure of suspension type thermal treatment furnace - Google Patents
Door structure of suspension type thermal treatment furnace Download PDFInfo
- Publication number
- CN202792985U CN202792985U CN 201220368676 CN201220368676U CN202792985U CN 202792985 U CN202792985 U CN 202792985U CN 201220368676 CN201220368676 CN 201220368676 CN 201220368676 U CN201220368676 U CN 201220368676U CN 202792985 U CN202792985 U CN 202792985U
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- Prior art keywords
- fire door
- root post
- furnace
- rail
- door structure
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Abstract
A door structure of a suspension type thermal treatment furnace comprises two driven sprockets, two lifting sliders, two column guide rails, a furnace end plate, a furnace door, a spacing detection device, two bob-weights, a driving shaft, two drive sprockets, a motor, two upper chains and two lower chains. According to the door structure, good sealing effect can be achieved, the uniformity of temperature inside the furnace is improved, therefore workpiece quality can reach an expected effect, and the motor can be prevented from damage due to the high temperature; simultaneously, parts on the door structure can be repaired under a door closing state, therefore the maintenance personnel are prevented from high temperature torture, heat loss in the furnace can be reduced, time is saved, and working efficiency is improved; and additionally, the up and down temperature difference at the furnace door inside the furnace can be controlled within 15DEG C, so that crystal phase structure inconformity during quenching is avoided, the quenching temperature can be 840DEG C stipulated by the process, the product quality can be improved remarkably, and the device reliability can be increased.
Description
Technical field
The utility model belongs to the heat treatment technics field, particularly relates to a kind of suspension type heat-treatment furnace door structure.
Background technology
The fire door of heat-treatment furnace generally adopts revolving door in the present domestic suspension type heat-treatment production line.By actual measurement, because the sealing effectiveness of this traditional fire door is not good, so the stove that is positioned at the fire door place up and down temperature difference can be up to 40 ℃, therefore at the quenching discharge end, so the large temperature difference can make the up and down institutional framework of workpiece inconsistent, at this moment can only adopt the workpiece quenching temperature is remedied this temperature difference from 840 ℃ of methods of bringing up to 870 ℃ stipulating, so not only can increase heat loss, waste a large amount of energy, and product is of poor quality, the reliability of equipment is low.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of can improve the quality of products, the suspension type heat-treatment furnace door structure of energy utilization rate and operating efficiency.
In order to achieve the above object, the outer side-lower of the stove gate of the suspension type heat-treatment furnace that the utility model provides is provided with foundation ditch, and described door structure comprises that two driven sprockets, two promote slide block, two root post guide rails, stove end plate, fire door, a cover limit detection device, two counterweights, driving shaft, two drive sprockets, motor, two top chains and two bottom chains; Wherein the stove end plate is frame-shaped construction, is arranged on the body of heater inner surface that is positioned at the stove gate edge; The top of two root post guide rails is vertically fixed on respectively on the two sides of stove gate, the bottom extends to the inside of foundation ditch, the middle part of every root post guide rail has been formed through a vertical rail, and inboard, vertical rail upper and lower part is formed with respectively the horizontal rail that an outer end is connected with vertical rail; Two driven sprockets are installed in respectively the upper end of two root post guide rails; Two drive sprockets are installed in respectively the lower end of two root post guide rails, and corresponding with the position of two driven sprockets respectively; Driving shaft is horizontally set between two drive sprockets, and an end is connected with motor; A top chain is housed on each driven sprocket, and the two ends of top chain link to each other with a upper end that is positioned at the lifting slide block of column guide rail inboard with a counterweight that is positioned at the stove gate outside respectively; A bottom chain is housed on each drive sprocket, and the two ends of bottom chain join with a counterweight and a lower end that promotes slide block respectively; Each lateral surface upper and lower part that promotes slide block is equipped with respectively a roller that is embedded in the vertical rail, and two ends have been formed through respectively an oblique curved groove up and down, and the center of circle of oblique curved groove is positioned at its lower left; It is tabular that fire door is, and the upper and lower part of its left and right sides is equipped with respectively two fire door rollers, and four fire door rollers are embedded in respectively in the vertical rail or its horizontal rail of two four curved grooves that promote slide blocks and two root post guide rails; Limit detection device is comprised of first to fourth optoelectronic switch and a check-out console, wherein first, second optoelectronic switch standoff distance is installed on the middle part lateral surface of a root post guide rail, three, the 4th optoelectronic switch standoff distance is installed on the bottom outside face of same root post guide rail, check-out console is installed in fire door bottom one side, and the outer end extends to the column guide rail outside, and is positioned at the same side with first to fourth optoelectronic switch.
Distance between described the first and second optoelectronic switches equals the arc length of curved groove center line.
In the described stove end plate heat-preservation cotton is housed, after fire door and its compression, existing insulation effect has again sealing function, and inside is provided with the circulating cooling pipeline, so that constantly cooling.
The suspension type heat-treatment furnace door structure that the utility model provides can reach good sealing effectiveness, improved temperature homogeneity in the stove, the quality of workpiece can be got a desired effect, and can prevent that motor from the damage problem occurring because of the impact that is subject to high temperature; Simultaneously, can under the state that fire door is closed, keep in repair the parts on the door structure, avoid the maintenance personal to suffer high temperature, reduce the furnace heat loss, save time, improve operating efficiency.In addition, adopt this door structure that stove interior upper and lower temperature difference in fire door place is controlled in 15 ℃, substantially crystalline phase can not occur when therefore quenching and organize inconsistent phenomenon, so hardening heat can adopting process 840 ℃ of regulation, so only reduce by one of discharge end furnace temperature and can reduce by 0.65% heat loss, according to producing 18000 tons, 500 degree power consumptions calculating per ton per year, but every year saves energy 60,000 degree, workpiece saves energy 3.3 degree per ton, product quality can increase substantially simultaneously, and the reliability of equipment increases.In addition, this door structure also has reasonable in design, easy to operate, full automation and low cost and other advantages.
Description of drawings
The suspension type heat-treatment furnace door structure forward schematic diagram that Fig. 1 provides for the utility model.
The suspension type heat-treatment furnace door structure side view that Fig. 2 provides for the utility model.
Fig. 3 is significant points enlarged diagram among Fig. 2.
The suspension type heat-treatment furnace door structure schematic rear view that Fig. 4 provides for the utility model.
The suspension type heat-treatment furnace door structure stereogram that Fig. 5 provides for the utility model.
Fig. 6 is significant points enlarged diagram among Fig. 5.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the suspension type heat-treatment furnace door structure that the utility model provides is elaborated.
Such as Fig. 1-shown in Figure 6, the outer side-lower of the stove gate of the suspension type heat-treatment furnace that the utility model provides is provided with foundation ditch 9, and described door structure comprises that two driven sprockets 1, two promote slide block 2, two root post guide rails 3, stove end plate 4, fire door 5, a cover limit detection device 6, two counterweights 7, driving shaft 8, two drive sprockets 10, motor 11, two top chains 14 and two bottom chains 15; Wherein stove end plate 4 is frame-shaped construction, is arranged on body of heater 25 inner surfaces that are positioned at the stove gate edge; The top of two root post guide rails 3 is vertically fixed on respectively on the two sides of stove gate, the bottom extends to the bottom of foundation ditch 9, the middle part of every root post guide rail 3 has been formed through a vertical rail 12, and inboard, vertical rail 12 upper and lower part is formed with respectively the horizontal rail 13 that an outer end is connected with vertical rail 12; Two driven sprockets 1 are installed in respectively the upper end of two root post guide rails 3; Two drive sprockets 10 are installed in respectively the lower end of two root post guide rails 3, and corresponding with the position of two driven sprockets 1 respectively; Driving shaft 8 is horizontally set between two drive sprockets 10, and an end is connected with motor 11; A top chain 14 is housed on each driven sprocket 1, and the two ends of top chain 14 link to each other with a upper end that is positioned at the lifting slide block 2 of column guide rail 3 inboards with a counterweight 7 that is positioned at the stove gate outside respectively; A bottom chain 15 is housed on each drive sprocket 10, and the two ends of bottom chain 15 join with a counterweight 7 and a lower end that promotes slide block 2 respectively; Each lateral surface upper and lower part that promotes slide block 2 is equipped with respectively a roller 16 that is embedded in the vertical rail 12, and two ends have been formed through respectively an oblique curved groove 18 up and down, and the center of circle of oblique curved groove 18 is positioned at its lower left; Fire door 5 is tabular, and the upper and lower part of its left and right sides is equipped with respectively in the vertical rail 12 or its horizontal rail 13 that 19, four fire door rollers 19 of two fire door rollers are embedded in respectively two four curved grooves 18 that promote slide blocks 2 and two root post guide rails 3; Limit detection device 6 is comprised of first to fourth optoelectronic switch 20-23 and a check-out console 24, first, second optoelectronic switch 20 wherein, 21 standoff distances are installed on the middle part lateral surface of a root post guide rail 3, three, the 4th optoelectronic switch 22,23 standoff distances are installed on the bottom outside face of same root post guide rail 3, check-out console 24 is installed in fire door 5 bottoms one side, and the outer end extends to column guide rail 3 outsides, and is positioned at the same side with first to fourth optoelectronic switch 20-23.
Distance between described the first and second optoelectronic switches 20,21 equals the arc length of curved groove 18 center lines, and the concrete situation can be according to real work the time is carried out trace adjustment.
In the described stove end plate 4 heat-preservation cotton is housed, after fire door 5 and its compression, existing insulation effect has again sealing function, and inside is provided with the circulating cooling pipeline, so that constantly cooling.
The suspension type heat-treatment furnace door structure operation principle that now the utility model is provided is described below: as shown in Figure 2, fire door 5 is positioned at bottom when initial, and as shown in phantom in FIG., this moment, fire door 5 was open mode.When needs are closed fire door 5, at first starter motor 11, under the drive of motor 11, driving shaft 8 and on two drive sprockets 10 will rotate, then driving driven sprocket 1 by bottom chain 15 and top chain 14 rotates, make thus to promote the mode of slide block 2 by roller 16 vertical rail 12 interior rollings on column guide rail 3 and upwards promote, promote slide block 2 and drive again the mode of fire door 5 by fire door roller 19 vertical rail 12 interior rollings on column guide rail 3 and rise together.The curved groove 18 that promotes during rising on the slide block 2 holds out against fire door roller 19 vertical rail 12 inboards on the column guide rail 3 all the time, when fire door roller 19 rises to vertical rail 12 with horizontal rail 13 intersection, the curved groove 18 that promotes on the slide block 2 pushes horizontal rail 13 with fire door roller 19, whole fire door 5 is also thereupon mobile to the inside, and final and stove end plate 4 compresses.In fire door 5 uphill process, when the check-out console 24 on the limit detection device 6 moves to the dead ahead of the second optoelectronic switch 21, the second optoelectronic switch 21 can detect this signal immediately, and send this signal to not shown host computer, host computer sends to motor 11 after signal is processed again, make motor 11 rotation that reduces speed now, so that fire door 5 inwardly slowly compresses, fire door 5 can reach slow compression and also have another main cause, this reason is that the vertical speed that curved groove 18 will promote slide block 2 transforms out a fraction of horizontal velocity to fire door roller 19, and this moment, the fire door roller 19 was positioned at vertical rail 12 and horizontal rail 13 intersections just.Then fire door 5 continues to rise, when check-out console 24 moves to the dead ahead of the first optoelectronic switch 20, the first optoelectronic switch 20 can detect this signal immediately, and send this signal to host computer, host computer sends to motor 11 after signal is processed again, motor 11 is stopped operating, finish to close the door thus action, fire door roller 19 is positioned at horizontal rail 13 innermost ends just at this moment.Under fire door 5 closed conditions, counterweight 7 will be kept the impaction state of fire door 5.
Because fire door 5 is directly vertically lifted by bottom chain 15 and top chain 14 by promoting slide block 2, so can realize the action of fast lifting fire door 5; When fire door 5 levels move inward compression, although the rotating speed of motor 11 descends, but vertical motion does not still change, the slope that in addition promotes curved groove 18 bottoms on the slide block 2 is very large, it is very slow when promotion fire door roller 19 moves horizontally to the inside so lifting slide block 2 is upwards promoted by motor 11, at this moment just realize fast lifting, slowly compressed the effect of good seal.After fire door 5 and stove end plate 4 compress, motor 11 stops operating, at this moment, counterweight 7 is still by chain 15,14 give the lifting slide block 2 one pulling force that make progress, because the curved groove 18 bottom slopes that promote on the slide block 2 are very large, therefore very little pulling force just can stop fire door roller 19 back to roll along the horizontal rail 13 on the column guide rail 3, thereby utilizes counterweight 7 to keep the impaction state of fire door 5.Under this state, can be in the situation that fire door 5 is closed the repair and replacement motor 11 or other parts that damage, improved the utilization rate of operating efficiency and the energy.
The decline process of fire door 5 is opposite with vertical motion.When needs are opened fire door 5, motor 11 reverse rotations, thereby promote slide block 2 by bottom chain 15 and top chain 14 pulling downwards, the curved groove 18 that promotes on the slide block 2 begins the 19 outside thrusters of fire door roller, until with the horizontal rail 13 on its release column guide rail 3, and then with promote slide block 2 together along vertical rail 12 down slidings on the column guide rail 3, this moment, fire door 5 separated with stove end plate 4.When fire door 5 drops to certain position, when check-out console 24 moves to the dead ahead of the 3rd optoelectronic switch 22, the 3rd optoelectronic switch 22 can detect this signal immediately, and send this signal to host computer, host computer sends to motor 11 after signal is processed again, make motor 11 rotation that reduces speed now, thereby fire door 5 is cushioned to stopping by fast-descending.When check-out console 24 moved to the dead ahead of the 4th optoelectronic switch 23, the 4th optoelectronic switch 23 can detect this signal immediately, and sends to immediately motor 11, and motor 11 is stopped operating, and finished to open the door thus action.
Claims (3)
1. suspension type heat-treatment furnace door structure, it is characterized in that: the outer side-lower of the stove gate of described suspension type heat-treatment furnace is provided with foundation ditch (9), and door structure comprises two driven sprockets (1), two promote slide block (2), two root post guide rails (3), a stove end plate (4), a fire door (5), one cover limit detection device (6), two counterweights (7), driving shaft (8), two drive sprockets (10), motor (11), two top chains (14) and two bottom chains (15); Wherein stove end plate (4) is frame-shaped construction, is arranged on body of heater (25) inner surface that is positioned at the stove gate edge; The top of two root post guide rails (3) is vertically fixed on respectively on the two sides of stove gate, the bottom extends to the inside of foundation ditch (9), the middle part of every root post guide rail (3) has been formed through a vertical rail (12), and vertical rail (12) inboard, upper and lower part is formed with respectively the horizontal rail (13) that an outer end is connected with vertical rail (12); Two driven sprockets (1) are installed in respectively the upper end of two root post guide rails (3); Two drive sprockets (10) are installed in respectively the lower end of two root post guide rails (3), and corresponding with the position of two driven sprockets (1) respectively; Driving shaft (8) is horizontally set between two drive sprockets (10), and an end is connected with motor (11); A top chain (14) is housed on each driven sprocket (1), and the two ends of top chain (14) link to each other with a upper end that is positioned at the inboard lifting slide block (2) of column guide rail (3) with a counterweight (7) that is positioned at the stove gate outside respectively; A bottom chain (15) is housed on each drive sprocket (10), and the two ends of bottom chain (15) join with a counterweight (7) and a lower end that promotes slide block (2) respectively; Each lateral surface upper and lower part that promotes slide block (2) is equipped with respectively a roller (16) that is embedded in the vertical rail (12), and two ends have been formed through respectively an oblique curved groove (18) up and down, and the center of circle of oblique curved groove (18) is positioned at its lower left; Fire door (5) is tabular, the upper and lower part of its left and right sides is equipped with respectively two fire door rollers (19), and four fire door rollers (19) are embedded in respectively in the vertical rail (12) or its horizontal rail (13) of two four curved grooves (18) that promote slide blocks (2) and two root post guide rails (3); Limit detection device (6) is comprised of first to fourth optoelectronic switch (20-23) and a check-out console (24), wherein first, the second optoelectronic switch (20,21) standoff distance is installed on the middle part lateral surface of a root post guide rail (3), the 3rd, the 4th optoelectronic switch (22,23) standoff distance is installed on the bottom outside face of same root post guide rail (3), check-out console (24) is installed in fire door (5) bottom one side, and the outer end extends to column guide rail (3) outside, and is positioned at the same side with first to fourth optoelectronic switch (20-23).
2. suspension type heat-treatment furnace door structure according to claim 1, it is characterized in that: the distance between described the first and second optoelectronic switches (20,21) equals the arc length of curved groove (18) center line.
3. suspension type heat-treatment furnace door structure according to claim 1 is characterized in that: in the described stove end plate (4) heat-preservation cotton is housed, and inside is provided with the circulating cooling pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220368676 CN202792985U (en) | 2012-07-27 | 2012-07-27 | Door structure of suspension type thermal treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220368676 CN202792985U (en) | 2012-07-27 | 2012-07-27 | Door structure of suspension type thermal treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202792985U true CN202792985U (en) | 2013-03-13 |
Family
ID=47820237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220368676 Withdrawn - After Issue CN202792985U (en) | 2012-07-27 | 2012-07-27 | Door structure of suspension type thermal treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202792985U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759275A (en) * | 2012-07-27 | 2012-10-31 | 天津市鼎元工业炉新技术开发有限公司 | Furnace door structure of suspension type thermal treatment furnace |
| CN103820606A (en) * | 2014-01-24 | 2014-05-28 | 浙江红马铸造有限公司 | Thermal treatment furnace |
| CN104359318A (en) * | 2014-11-27 | 2015-02-18 | 济南大学 | High-temperature furnace door opening device |
| CN104964566A (en) * | 2015-07-16 | 2015-10-07 | 秦皇岛开发区春光铸造机械有限公司 | Furnace roof sealing device for suspension heat treatment furnace |
-
2012
- 2012-07-27 CN CN 201220368676 patent/CN202792985U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759275A (en) * | 2012-07-27 | 2012-10-31 | 天津市鼎元工业炉新技术开发有限公司 | Furnace door structure of suspension type thermal treatment furnace |
| CN102759275B (en) * | 2012-07-27 | 2014-04-30 | 天津市鼎元工业炉新技术开发有限公司 | Furnace door structure of suspension type thermal treatment furnace |
| CN103820606A (en) * | 2014-01-24 | 2014-05-28 | 浙江红马铸造有限公司 | Thermal treatment furnace |
| CN104359318A (en) * | 2014-11-27 | 2015-02-18 | 济南大学 | High-temperature furnace door opening device |
| CN104964566A (en) * | 2015-07-16 | 2015-10-07 | 秦皇岛开发区春光铸造机械有限公司 | Furnace roof sealing device for suspension heat treatment furnace |
| CN104964566B (en) * | 2015-07-16 | 2017-04-19 | 秦皇岛开发区春光铸造机械有限公司 | Furnace roof sealing device for suspension heat treatment furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20140430 |
|
| RGAV | Abandon patent right to avoid regrant |