CN201220949Y - Chain type elevating gear for movable fume hood - Google Patents
Chain type elevating gear for movable fume hood Download PDFInfo
- Publication number
- CN201220949Y CN201220949Y CNU2008201276593U CN200820127659U CN201220949Y CN 201220949 Y CN201220949 Y CN 201220949Y CN U2008201276593 U CNU2008201276593 U CN U2008201276593U CN 200820127659 U CN200820127659 U CN 200820127659U CN 201220949 Y CN201220949 Y CN 201220949Y
- Authority
- CN
- China
- Prior art keywords
- chain
- chains
- hinged
- gas hood
- movable gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a chain movable furnace cover lifting device, wherein, one ends of four chains are hinged with four suspension points of a movable furnace cover, and the four chains rotate backward through corresponding directive wheels; the other ends are hinged with the other ends of two chains with one ends being respectively fixed on corresponding winding drums through connecting plates; the shaft of the winding drum is connected with a speed reducer through a coupling; an electric motor simultaneously drives the winding drums to rotate through the speed reducer, therefore the movable furnace cover is driven to be vertically ascended or descended through the chains; the chain adopts a precision roller chain used for short-pitch transmission; and the directive wheels are corresponding chain wheels. The chain movable furnace cover lifting device adopting the technical proposal has the advantages that the transmission instantaneous speed is more uniform, the stop position is accurate, the vibration is little and the noise is low during the operation, the operation is reliable, and the manufacture, the installation and the maintenance are convenient.
Description
Technical field
The utility model relates to a kind of movable gas hood lifting device, is specifically related to a kind of chain type movable gas hood lifting device.
Background technology
Furnace gas after converter mouth ejection, no matter adopt that a kind of purification cooling treatment method, all must be at first through movable gas hood and fixing petticoat pipe, then enter waste heat boiler again or half waste heat boiler utilizes used heat, just enter the purification cooling system afterwards.The movable gas hood lifting device is divided three classes: electronic elevator form, electric screw lifting form, hydraulic drive form, and the utility model belongs to electronic elevator form, and similar structure of the present utility model has following two kinds:
It is hinged with an end of four wireline respectively that first kind of structure is that movable gas hood is provided with four suspension centres, every wireline turns to by a deflecting roller respectively, after wireline turns to, the other end of two wireline of homonymy and an end of a web plate are hinged, to be fixed on the other end of two wireline on the reel separately hinged with an end respectively for the other end of two web plates, the axle of two winding drum is connected by the two ends of shaft coupling with the output shaft of step-down gear, electric motor drives two reel rotations simultaneously by step-down gear, and then drives movable gas hood vertical uplift or decline by wireline.The shortcoming of this structure is: because movable gas hood work area environment is abominable, temperature height, flue dust are big, and easy care does not cause wireline to reduce work-ing life, and it is disconnected that wireline often takes place, and causes the petticoat pipe lifting device malfunctioning.
Second kind of structure be movable gas hood be provided with four suspension centres respectively with four to work ends of reusing short link chain hinged, reuse short link chain and turn to by a deflecting roller respectively for every, rise and to reuse after short link chain turns to, two the other ends that rise to reuse short link chain of homonymy and an end of a web plate are hinged, the other end of two web plates is fixed on the reel separately two with an end respectively, and to work the other ends of reusing short link chain hinged, the axle of two winding drum is connected by the two ends of shaft coupling with step-down gear one output shaft, electric motor drives two reel rotations simultaneously by step-down gear, and then reuses short link chain drive movable gas hood vertical uplift or decline by rising.Though this structure has overcome the shortcoming of first kind of structure, self have also that momentary velocity is inhomogeneous, off-position is inaccurate, during work vibration big and noise is high, because the existence of reel causes defectives such as scantlings of the structure is excessive.
The utility model content
The purpose of this utility model is to overcome the prior art deficiency, and the chain type movable gas hood lifting device that a kind of transmission momentary velocity is even more, off-position is accurate, vibration is little and noise is low is provided.
To achieve these goals, a kind of chain type movable gas hood lifting device, wherein, four suspension centres on one end of four rope chains and the described movable gas hood are hinged, and after described four rope chains turn to by corresponding deflecting roller, its the other end is hinged by the other end that a web plate and an end are separately fixed at two rope chains on the reel separately, the axle of this reel is connected with step-down gear by shaft coupling, electric motor drives the reel rotation simultaneously by step-down gear, thereby drive movable gas hood vertical uplift or decline by the rope chain, described rope chain is corresponding sprocket wheel for short pitch transmission precision roller chain, described deflecting roller.
Described reel is a drive sprocket.
The utility model compared with prior art has the following advantages:
Owing to adopt short pitch (transmission is used) precision roller chain, make that the transmission momentary velocity is even more, off-position is accurate, vibrate little when working and noise is low, and it is simpler, compact that sprocket wheel replaces reel structure, the advantage that had both had first and second kind structure of above-mentioned existing movable gas hood lifting device, overcome simultaneously its shortcoming again, and web member is simple in structure, makes and practicality easy for installation good reliability.
Description of drawings
Fig. 1 is the structural representation of chain type movable gas hood lifting device of the present utility model;
Fig. 2 is that the A shown in Fig. 1 is to view.
Embodiment
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described.
See figures.1.and.2, movable gas hood 21 is hinged with precision roller chain with four short pitch transmissions respectively by four suspension rods and turnbuckle, wherein hinged with precision roller chain 17 and two the 3rd short pitch transmissions with an end of precision roller chain 18 with two second short pitch transmissions, after two chain-second short pitchs transmission of homonymy turns to through jockey sprocket 13 with precision roller chain 18 with precision roller chain 17 and the 3rd short pitch transmission, one end of its other end and a web plate 16 is hinged, the other end of two web plates 16 is hinged with an end of precision roller chain 12 with two first short pitch transmissions respectively, two first short pitch transmissions are hinged with two drive sprockets 14 respectively with the other end of precision roller chain 12, the transmission shaft of two drive sprockets 14 is connected with the two ends of speed reduction unit 11 1 output shafts by shaft coupling 15 respectively, and electric motor 19 is connected with two drive sprockets by step-down gear.Electric motor 19 drives 14 rotations of two drive sprockets simultaneously during work, and then by short pitch (transmission is used) precision roller chain drive movable gas hood 21 vertical uplift or decline, shown in the four-headed arrow among Fig. 2, in addition owing to adopted short pitch (transmission is used) precision roller chain, therefore movable gas hood can be parked in petticoat pipe among Fig. 2 back smallest limit position H2 and the petticoat pipe optional position between the smallest limit position H3 of back that descends of rising, top side location when wherein H1 covers for the place of hanging detains exactly.
The chain type movable gas hood lifting device that uses the technical program to realize, manufacturing and installation are all convenient and practical, reliable, easy to maintenance.
Claims (2)
1. chain type movable gas hood lifting device, wherein, four suspension centres on one end of four rope chains and the described movable gas hood are hinged, and after described four rope chains turn to by corresponding deflecting roller, its the other end is hinged by the other end that a web plate and an end are separately fixed at two rope chains on the reel separately, the axle of this reel is connected with step-down gear by shaft coupling, electric motor drives the reel rotation simultaneously by step-down gear, thereby drive movable gas hood vertical uplift or decline by the rope chain, it is characterized in that, described rope chain is corresponding sprocket wheel for short pitch transmission precision roller chain, described deflecting roller.
2. chain type movable gas hood lifting device according to claim 1 is characterized in that described reel is a drive sprocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201276593U CN201220949Y (en) | 2008-07-18 | 2008-07-18 | Chain type elevating gear for movable fume hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201276593U CN201220949Y (en) | 2008-07-18 | 2008-07-18 | Chain type elevating gear for movable fume hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201220949Y true CN201220949Y (en) | 2009-04-15 |
Family
ID=40574462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201276593U Expired - Fee Related CN201220949Y (en) | 2008-07-18 | 2008-07-18 | Chain type elevating gear for movable fume hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201220949Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109652608A (en) * | 2018-12-30 | 2019-04-19 | 洛阳博华实业有限公司 | Track is used in a kind of petticoat pipe translation of included clearing function |
-
2008
- 2008-07-18 CN CNU2008201276593U patent/CN201220949Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109652608A (en) * | 2018-12-30 | 2019-04-19 | 洛阳博华实业有限公司 | Track is used in a kind of petticoat pipe translation of included clearing function |
| CN109652608B (en) * | 2018-12-30 | 2023-11-24 | 洛阳博华实业有限公司 | From track for petticoat pipe translation of taking clearance function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20160718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |