CN203593764U - Oxygen lance falling prevention device - Google Patents
Oxygen lance falling prevention device Download PDFInfo
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- CN203593764U CN203593764U CN201320752537.4U CN201320752537U CN203593764U CN 203593764 U CN203593764 U CN 203593764U CN 201320752537 U CN201320752537 U CN 201320752537U CN 203593764 U CN203593764 U CN 203593764U
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- shift fork
- shifting fork
- oxygen
- spring
- oxygen lance
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Abstract
The utility model discloses an oxygen lance falling prevention device which comprises a carrying rail, an oxygen lance trolley and a pulley block frame, wherein perpendicular sliding chutes are formed in the frame; a declutch shift shaft and a shifting fork are mounted on the oxygen lance trolley; the shifting fork is composed of a shifting fork head part and a shifting fork body; the shifting fork head part and the shifting fork body are in dovetail groove slideway connection; one end of an extension spring is connected with a protruding part through a first spring pin, and the other end of the extension spring is connected with the shifting fork body through a second spring pin; in the braking state, the shifting fork head part and the carrying rail are clamped together; the other end of the shifting fork is a hollow sleeve; a pull rod and a buffer spring in slide connection are mounted in the sleeve and are in compression joint; a pin roll is mounted in the head part of the pull rod and placed in the perpendicular sliding chutes; the pin roll is movably connected with the perpendicular sliding chutes. After the adoption of the technology, the oxygen lance is effectively prevented from falling. In addition, during the braking process, the buffer spring reduces the impact of the pulley block frame on the oxygen lance frame, so that the oxygen lance is prevented from deformation and being damaged due to the impact.
Description
Technical field
The utility model provides a kind of anti-block rifle drop device, is the auxiliary supporting device of the top-blown oxygen converter in STEELMAKING PRODUCTION.
Background technology
Oxygen gun apparatus is the key equipment that oxygen top blown converter steel making is produced.The oxygen rifle oxygen lance that is otherwise known as is to be formed by Compound Steel pipe box dress.Innermost layer steel pipe is oxygen channel, and steel pipe head is welded with copper oxygen nozzle, and oxygen is from the nozzle ejection of oxygen nozzle.The second layer and Compound Steel pipe are the water-in and water-out passages of oxygen gun cooling water, the inlet tube and outlet tube of oxygen gun cooling water is also all integrally welded with oxygen nozzle, the inlet tube and outlet tube of oxygen gun cooling water forms closed cycle passage in oxygen nozzle, for cooling oxygen gun body and oxygen lance blow head.Oxygen rifle is vertically mounted on oxygen rifle dolly, and the inlet tube and outlet tube of oxygen and water coolant communicates with oxygen canister and cooling water pipeline by metallic hose.The tackleblock of oxygen rifle dolly is connected by wireline with oxygen lance lifting windlass, and traction oxygen rifle dolly moves in vertical track.When oxygen top blown converter steel making is produced, oxygen rifle is inserted in the molten steel of converter, by the oxidizing reaction of oxygen, plays the effect of de-carbon and intensification.
Oxygen rifle dolly is to be drawn by the wireline of oxygen lance lifting windlass, once wireline fractures, oxygen rifle just falls and drops in Converter with oxygen rifle dolly.Therefore the oxygen nozzle weld bond of oxygen rifle snaps, and water coolant bleeds in molten steel, and water coolant sharply flashes to water vapour, and volumetric expansion is just easy to occur molten steel blast, cause casualties and structure deteriorate Serious Accident.Anti-block rifle drop device is the most important thing device that guarantees oxygen gun apparatus safe operation and even oxygen top blown converter steel making safety in production.In the oxygen gun apparatus of existing domestic oxygen top blown converter steel making factory, anti-block rifle drop device is all to connect mutually by tackleblock and a spring assembly, then is connected with a drift stop.When the lifting of oxygen rifle dolly, the lifting force of steel wire rope of windlass, by pulley group frame, by spring-compressed, drift stop is in open mode.Work as steel wire rope looseness, the lifting force of windlass disappears, and the gravity of pulley group frame and spring force just make drift stop braking, stops oxygen rifle dolly down sliding, thereby has prevented that oxygen rifle from falling.
At present, anti-block rifle drop device mainly adopts three kinds of braking models: one is the anti-block rifle of Wedge-type drop device, and it is made up of one group of wedge, is fixed on oxygen rifle trolley platform, moving voussoir is connected with pulley group frame by leverage, only can move in the vertical direction.Another voussoir only can move by along continuous straight runs.With oxygen rifle trolley track running fit.By inclined-plane amplification principle, the friction catch moment that the horizontal direction component of oxygen rifle dolly gravity is produced, brakes oxygen rifle dolly on the orbit of oxygen rifle dolly.
Another kind is the anti-block rifle of fan-shaped eccentric gear block type drop device, the swing arm axis swing of can having mercy on, and the nose shape of swing arm is eccentric segment, afterbody is connected with pulley group frame by linkage assembly, utilizes eccentric moment to brake.Also having one is herring-bone fork type, and two groups of shift forks are connected on same axle, in oxygen rifle trolley track, equally spaced clamp are set, and by two groups of shift forks, oxygen rifle dolly are clamped on the clamp of oxygen rifle trolley track.
The anti-fall gun apparatus of these three kinds of braking models of oxygen gun apparatus, all there is to some extent defect, first two is because the stroke of braking is limited, drift stop in use, brake facing and the wearing and tearing of delivery track friction, cause braking moment to decline, and it is improper to adjust, drift stop will skid, and needs running check and adjusts the drift stop of anti-fall gun apparatus and the gap that delivers track.Once safeguard not in placely, oxygen rifle falling accident will occur, impact safety in production.Adjust drift stop and the gap that delivers track although the anti-fall gun apparatus of herring-bone fork type does not need to check, exist shock load large, easily cause the distortion of oxygen rifle vehicle structure, and easily bad block of shovel of shift fork, the problems such as anti-falling stop rifle disabler caused.
Summary of the invention
The purpose of this utility model is the shortcoming for domestic several anti-fall gun apparatus, a kind of anti-block rifle drop device is provided, fall dependable performance, effectively of the anti-block rifle of this device dolly, Inspection and maintenance is convenient, and can anti-block rifle dolly in braking procedure because of impact deformed damaged.
The technical solution of the utility model is: a kind of anti-block rifle drop device, comprise delivery track, the oxygen rifle dolly sliding on delivery track, above oxygen rifle dolly, be connected with pulley group frame, it is characterized in that: pulley group frame is provided with vertical chute, on the vehicle frame of oxygen rifle dolly both sides, be connected with respectively pedestal, in pedestal, be connected with declutch shift shaft, shift fork is housed on declutch shift shaft, each shift fork is made up of shift fork head and shift fork body two portions, both are connected for dove-tail slideway, be close to shift fork body at shift fork head and have place's protuberance, extension spring one end is connected with described protuberance with the first spring pin, the other end of extension spring is connected with shift fork body with the second spring pin, extension spring is strained shift fork body with shift fork head together with, shift fork head is placed in delivery track, shift fork head and the clamping of delivery track when braking mode, the other end of each shift fork body is the sleeve of hollow, the pull bar and the buffer spring that are slidably connected are housed in sleeve, pull bar and buffer spring crimping, rod head is equipped with bearing pin, bearing pin is placed in vertical chute, bearing pin is flexibly connected with vertical chute.
This technology is installed a set of telescopic pull bar on each shift fork, and vertical chute is set on pulley group frame, when after steel wire rope looseness or fracture, pulley group frame falls under action of gravity, drive shift fork rotates, and along with the rotation of shift fork, the distance of the horizontal direction of shift fork increases, in the time that shift fork head touches the delivery track of oxygen rifle dolly, stop motion.Shift fork body is rotated further under inertia effect, but cannot rotate by the restriction of shift fork head protuberance, along with the slip of pulley group frame and oxygen rifle dolly, shift fork body is along the dove-tail slideway down sliding of shift fork head, the bearing pin of the shift fork the other end is pull bar retraction during with vertical chute down sliding, buffer spring in pull bar is compressed, absorption portion surging force, along with the whereabouts of pulley group frame, shift fork is rotated further, the design angle of dove-tail slideway and vertical direction is greater than 90 degree, shift fork body is all pressed on shift fork head in oxygen rifle delivery track, finally oxygen rifle dolly is locked on delivery track, this technology is because the shock load can alleviate oxygen rifle and fall time, and effectively prevent that oxygen rifle dolly from damaging distortion because of impact.
Accompanying drawing explanation
Fig. 1 is the structural representation of the anti-block rifle of the utility model drop device.
Fig. 2 is the shifting fork structure enlarged view of anti-block rifle drop device.
Fig. 3 be A in Fig. 2 to view, i.e. the dove-tail slideway schematic diagram of shift fork body and shift fork head junction.
1 wireline, 2 pulley group frames, 3 little car springs, 4 bearing pins, 5 pull bars, 6 buffer springs, 7 sleeves, 8 declutch shift shafts, 9 oxygen rifle dollies, 10 oxygen rifles, 11 delivery tracks, 12 shift fork bodies, 13 dove-tail slideways, 14 shift fork heads, 15 first spring pin, 16 extension springs, 17 second spring pin, 18 pedestals, 19 chutes in figure.
Embodiment
Anti-block rifle drop device, the oxygen rifle dolly 9 that comprises delivery track 11, slides on delivery track, above oxygen rifle dolly, be connected with pulley group frame 2, between oxygen rifle dolly 9 and pulley group frame 2, dolly spring 3 be housed, on described oxygen rifle dolly, two groups of shift forks are installed.Every group of shift fork middle part is porose, and declutch shift shaft 8 is housed in hole, and shift fork can rotate on declutch shift shaft.Declutch shift shaft is fixed in pedestal 18, and pedestal is welded on the vehicle frame of oxygen rifle dolly.Shift fork is made up of shift fork head 14 and shift fork body 12 two portions, both are connected for dove-tail slideway 13, be close to shift fork body at shift fork head and have place's protuberance, extension spring 16 one end are connected with described protuberance with the first spring pin 15, the other end of extension spring is connected with shift fork body with the second spring pin 17, extension spring is strained shift fork body with shift fork head together with, shift fork head 14 is placed in delivery track 11, shift fork and the clamping of delivery track when braking mode, shift fork body 12 the other ends are welded with sleeve 7, sleeve inner is equipped with buffer spring 6 and pull bar 5, pull bar and buffer spring crimping, the head of pull bar is provided with bearing pin 4, pulley group frame is provided with vertical chute 19, bearing pin is placed in chute, bearing pin can slide up and down in vertical chute.
After wireline 1 relaxes or ruptures, pulley group frame falls under action of gravity, drives shift fork to rotate, and along with the rotation of shift fork, the distance of the horizontal direction of shift fork increases, and in the time that shift fork head touches the delivery track of oxygen rifle dolly, has stopped motion.Shift fork body is rotated further under inertia effect, but cannot rotate by the restriction of shift fork head protuberance.Along with the slip of pulley group frame and oxygen rifle dolly, shift fork body is along the dovetail-indent down sliding of shift fork head, the bearing pin of the shift fork the other end is pull bar retraction during with vertical chute down sliding, buffer spring in pull bar is compressed, absorption portion surging force, along with the whereabouts of pulley group frame, shift fork is rotated further, the design angle of dove-tail slideway and vertical direction is greater than 90 degree, shift fork body is all pressed on shift fork head in oxygen rifle delivery track, finally oxygen rifle dolly is locked on delivery track, this technology is because the shock load can alleviate oxygen rifle 10 and fall time, and effectively prevent that oxygen rifle dolly from damaging distortion because of impact.
Claims (1)
1. an anti-block rifle drop device, comprise delivery track, the oxygen rifle dolly sliding on delivery track, above oxygen rifle dolly, be connected with pulley group frame, it is characterized in that: pulley group frame is provided with vertical chute, on the vehicle frame of oxygen rifle dolly both sides, be connected with respectively pedestal, in pedestal, be connected with declutch shift shaft, shift fork is housed on declutch shift shaft, each shift fork is made up of shift fork head and shift fork body two portions, both are connected for dove-tail slideway, be close to shift fork body at shift fork head and have place's protuberance, extension spring one end is connected with described protuberance with the first spring pin, the other end of extension spring is connected with shift fork body with the second spring pin, extension spring is strained shift fork body with shift fork head together with, shift fork head is placed in delivery track, shift fork head and the clamping of delivery track when braking mode, the other end of each shift fork body is the sleeve of hollow, the pull bar and the buffer spring that are slidably connected are housed in sleeve, pull bar and buffer spring crimping, rod head is equipped with bearing pin, bearing pin is placed in vertical chute, bearing pin is flexibly connected with vertical chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752537.4U CN203593764U (en) | 2013-11-25 | 2013-11-25 | Oxygen lance falling prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752537.4U CN203593764U (en) | 2013-11-25 | 2013-11-25 | Oxygen lance falling prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203593764U true CN203593764U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320752537.4U Expired - Fee Related CN203593764U (en) | 2013-11-25 | 2013-11-25 | Oxygen lance falling prevention device |
Country Status (1)
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| CN (1) | CN203593764U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329944A (en) * | 2014-10-24 | 2015-02-04 | 宁波金田冶炼有限公司 | Movable oxygen blowing vehicle for fixed type reverberating furnace |
| CN109869027A (en) * | 2019-03-12 | 2019-06-11 | 南京西普环保科技有限公司 | Falling proof device in guide rail |
| CN111485058A (en) * | 2020-06-15 | 2020-08-04 | 金鼎重工有限公司 | Mechanical external oxygen lance anti-falling device |
| CN112226575A (en) * | 2019-07-15 | 2021-01-15 | 刘克 | Energy storage type oxygen lance anti-falling device |
| CN114085945A (en) * | 2021-11-20 | 2022-02-25 | 潍坊峻林冶金工程技术有限公司 | Novel oxygen lance lifting trolley |
-
2013
- 2013-11-25 CN CN201320752537.4U patent/CN203593764U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329944A (en) * | 2014-10-24 | 2015-02-04 | 宁波金田冶炼有限公司 | Movable oxygen blowing vehicle for fixed type reverberating furnace |
| CN104329944B (en) * | 2014-10-24 | 2016-03-30 | 宁波金田冶炼有限公司 | For the mobile remote control oxygen blast car of stationary reverberatory furnace |
| CN109869027A (en) * | 2019-03-12 | 2019-06-11 | 南京西普环保科技有限公司 | Falling proof device in guide rail |
| CN112226575A (en) * | 2019-07-15 | 2021-01-15 | 刘克 | Energy storage type oxygen lance anti-falling device |
| CN111485058A (en) * | 2020-06-15 | 2020-08-04 | 金鼎重工有限公司 | Mechanical external oxygen lance anti-falling device |
| CN114085945A (en) * | 2021-11-20 | 2022-02-25 | 潍坊峻林冶金工程技术有限公司 | Novel oxygen lance lifting trolley |
| CN114085945B (en) * | 2021-11-20 | 2022-11-08 | 潍坊峻林冶金工程技术有限公司 | Novel oxygen lance lifting trolley |
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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: 20140514 Termination date: 20161125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |