CN114524378A - Heating furnace roller replacing device under local space - Google Patents

Abstract

The invention discloses a heating furnace roller replacing device under a local promotion space, and relates to the field of heating furnace roller replacing equipment in the metallurgical industry. Mainly solves the problem of realizing the safe and fast replacement of the furnace roller of the heating furnace by using less labor in a limited space. The device comprises a hanging roller beam, a hanging roller frame, a transverse moving device, a lifting device, a roller changing trolley and a floor paving steel plate. The roller hanger is hung on the roller hanger beam, the transverse moving device is fixedly arranged on the roller hanger beam, the roller hanger is connected with the transverse moving device through a lead screw nut, the roller changing trolley and the lifting device are detachably arranged on the roller hanger beam, the lifting device is connected with the roller changing trolley through threads, and the roller changing trolley is arranged on the floor steel plate. The invention not only solves the problem of difficult replacement of the furnace roller of the heating furnace in local space, but also effectively saves the human resources for roller replacement operation.

Description

Heating furnace roller replacing device under local space

Technical Field

The invention relates to the field of heating furnace roller replacing equipment in the metallurgical industry, in particular to a heating furnace roller replacing device under a local space.

Background

The heating furnace is a very important steel heating device on a steel plant production line and mainly used for conveying and heating steel. In the heating furnace, a furnace roller is required to be installed at certain intervals along the moving direction of the steel, and the steel billet is conveyed on the furnace roller. The furnace roller rotates under high-temperature heat load and billet load, and is easily subjected to mechanical damage caused by collision, abrasion and the like of billets; during the production process, some impurities with larger texture and harder hardness are also adhered to the surface of the furnace roller and are difficult to fall off. The surface damage and impurity attachment of the furnace roller can cause the surface scratch of steel, and with the continuous progress of the technology, the requirements of downstream products on the surface quality of the steel are higher and higher; therefore, the heating furnace roller needs to be overhauled or replaced irregularly according to the actual working condition, so that the surface quality of the furnace roller is ensured, and the product quality is ensured.

The heating furnace is of a closed structure, and the furnace roller can only be drawn out from an opening of the side furnace wall. At present, change heating furnace stove roller in the steel plant and adopt C type frame hoist or take the roller sling instrument of counter weight more, this type of instrument working range is great, is difficult to adapt to the roller change requirement under the space of local promotion, and cantilever type roller change mode also is difficult to ensure operating personnel's security simultaneously, and stove roller change speed is slower, occupies overhead traveling crane live time in a large number, can't satisfy the operation requirement of the fast rhythm production of steel plant now. In some places with more local environmental space, at present, a manual hoist is mostly used for replacing rollers by setting up a support manually, a large amount of human resources and time are consumed in the mode, the ambient temperature around the heating furnace is high, various pipelines on the outer side of the furnace wall are densely distributed, the safety of operators is poor, and the disassembly and the assembly of the furnace rollers are very inconvenient.

Disclosure of Invention

In order to solve the technical problems, the invention provides a heating furnace roller replacing device under a local space, which realizes the safe and quick replacement of the heating furnace roller by using less manpower in a limited space.

The technical scheme adopted by the invention is as follows: a furnace roller replacing device of a heating furnace under a local promotion space comprises a hanging roller beam 1, a hanging roller frame 2, a transverse moving device 3, a lifting device 4, a roller replacing trolley 5 and a floor laying steel plate 6. The roller lifting frame 2 is arranged on the roller lifting beam 1 in a hanging mode, the transverse moving device 3 is fixedly arranged on the roller lifting beam 1, the roller lifting frame 2 is connected with the transverse moving device 3 through a lead screw nut, the roller lifting beam 1 is detachably arranged on the roller changing trolley 5 and the lifting device 4, the lifting device 4 is connected with the roller changing trolley 5 through threads, and the roller changing trolley 5 is arranged on the floor steel plate 6.

Further, the hanging roller beam 1 comprises a beam 11, a support frame 12, a connecting frame 13 and a furnace roller hanging ring assembly 14. The two support frames 12 are symmetrically arranged on two sides of the beam, the connecting frame 13 is fixedly connected to the beam 11, and the furnace roller hanging ring assembly 14 is movably arranged at the front end part of the beam 11.

Further, the hanging roller frame 2 comprises a roller 21, two groups of hanging plates 22, a hanging bracket 23, a compression roller block 24 and a furnace roller rear hanging ring 25. The roller 21 sets up two link plate 22 is inboard, gallows 23 sets up two link plate 22 between and through threaded connection, compression roller piece 24 with be threaded connection between the gallows 23, link 25 behind the stove roller with be the activity pin junction between the gallows 23.

Further, the traverse device 3 comprises a handle 31, a large gear 32, a fixed seat 33, a locking screw 34, a small gear 35 and a lead screw 36. The centre swing joint of gear wheel 32 is in on fixing base 33, the gear wheel 32 terminal surface is provided with handle 31 reaches locking screw 34, gear wheel 32 with pinion 35 intermeshing, pinion 35 with lead screw 36 fixed connection.

Further, the lifting device 4 includes a hand wheel 41, a hand wheel screw 42, and a lifting base 43. The hand wheel 41 is fixed on the hand wheel screw rod 42, and the lifting seat 43 is movably arranged on the upper end surface of the hand wheel 41.

Further, the roll changing trolley 5 comprises a trolley body 51, a positioning fork 52, a pull rod 53, a support rod 54 and wheels 55. The positioning fork 52 is movably connected to the vehicle body 51, the pull rod 53, the support rod 54 and the vehicle body 51 are in threaded connection, and the wheel 55 is arranged on the bottom surface of the vehicle body 51.

Further, the floor paving steel plate 6 is provided with a positioning stud 61 and an anti-tipping threaded hole.

Furthermore, the support frame 12 is a pin shaft with a fixed seat and can freely rotate in a groove corresponding to the roll changing trolley 5.

Further, the furnace roller hanging ring assembly 14 comprises a rocking handle 15, an eccentric shaft 16 and a furnace roller front hanging ring 17. The rocking handle 15 is fixedly connected with the eccentric shaft 16, and the furnace roller front suspension loop 17 is arranged on the eccentric shaft 16.

Further, the front wheel of the wheel 55 is a fixed wheel, and the rear wheel is a universal wheel with brake.

The device has the advantages that the device is compact in overall structure, redundant pipelines are not required to be configured in a purely manual operation mode, the replacement requirement of the furnace roller of the heating furnace in a confined space is met, the lifting appliance and the trolley are of a split structure, the turnover and allocation of the furnace roller are facilitated, the device is simple in operation process, the requirements on the number and the working strength of operators are reduced, the operation safety in the adjustment and allocation process of the furnace roller is improved due to the double-hanging-ring structure, the overhanging pose of the furnace roller in the roller changing process can be controlled by the lifting device, the scraping of furnace walls or surrounding pipelines in the furnace roller extracting or feeding process into the heating furnace can be effectively avoided, the furnace roller changing process is smoother, and the furnace roller replacing efficiency is remarkably improved.

Drawings

Fig. 1 is a schematic structural diagram of a furnace roller replacing device of a heating furnace under a confined space according to an embodiment of the present invention;

FIG. 2 is a sectional view of a furnace roller suspension ring assembly of the furnace roller replacing device for the heating furnace under the confined space according to the embodiment of the invention;

FIG. 3 is a schematic connection diagram of a traverse device of a furnace roller replacing device of a heating furnace in a confined space according to an embodiment of the present invention;

fig. 4 is a schematic connection diagram of a hanging roller frame and a lifting device of a furnace roller replacing device of a heating furnace in a confined space according to an embodiment of the invention.

Description of the drawings: 1-hanging roller beam, 11-beam, 12-support frame, 13-connecting frame, 14-furnace roller hanging ring component, 15-rocking handle, 16-eccentric shaft, 17-furnace roller front hanging ring; 2-hanging a roller frame, 21-rolling wheels, 22-hanging plates, 23-hanging frames, 24-pressing roller blocks and 25-furnace roller rear hanging rings; 3-a traversing device, 31-a handle, 32-a gearwheel, 33-a fixed seat, 34-a locking screw, 35-a pinion and 36-a lead screw; 4-lifting device, 41-hand wheel, 42-hand wheel screw rod, 43-lifting seat; 5-roll changing trolley 51-trolley body 52-positioning fork 53-pull rod 54-support rod 55-wheel; 6-paving a floor steel plate, 61-positioning studs.

Detailed Description

In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.

The invention provides a furnace roller replacing device for a heating furnace in a local promotion space, which aims to solve the technical problems that a common furnace roller lifting appliance in the prior art cannot meet the replacing requirement of the furnace roller of the heating furnace in the local promotion space, and the technical problems that the safety of operators in the roller replacing process is poor, the roller replacing efficiency is low and the like. The contents of the present invention are described in detail below by way of examples:

a furnace roller replacing device of a heating furnace under a local promotion space comprises a hanging roller beam 1, a hanging roller frame 2, a transverse moving device 3, a lifting device 4, a roller replacing trolley 5 and a floor laying steel plate 6. The hanging roll frame 2 is hung on the hanging roll beam 1, the transverse moving device 3 is fixedly arranged on the hanging roll beam 1, the hanging roll frame 2 is connected with the transverse moving device 3 through a screw nut, the hanging roll beam 1 is detachably arranged on the lifting device 4 and the roll changing trolley 5, the lifting device 4 is connected with the roll changing trolley 5 through threads, and the roll changing trolley 5 is arranged on the floor steel plate 6.

The hanging roller beam 1 comprises a beam 11, a support frame 12, a connecting frame 13 and a furnace roller hanging ring assembly 14. The beam 11 is a welded structure, rails for the front and back movement of the hanging roller frame 2 are arranged on two sides of the welded structure, the support frames 12 are pin shafts with fixed seats, the 2 support frames 12 are symmetrically arranged on two sides of the beam 11, when the position and the attitude of the furnace roller are adjusted, the support frames can freely rotate in corresponding grooves of the vehicle body 51 along with the beam 11, the connecting frame 13 is fixedly connected to the beam 11, and the lower end of the connecting frame is in pin connection with the lifting seat 43; the furnace roller hanging ring assembly 14 comprises a rocking handle 15, an eccentric shaft 16 and a furnace roller front hanging ring 17, the rocking handle 15 and the eccentric shaft 16 are fixed together through screws, the furnace roller front hanging ring 17 is movably connected to the eccentric shaft 16, the eccentric shaft 16 is driven to rotate through the rocking handle 15, and certain adjustment allowance can be provided when the furnace roller front hanging ring 17 is installed.

The hanging roller frame 2 comprises a roller 21, two groups of hanging plates 22, a hanging frame 23, a compression roller block 24 and a furnace roller rear hanging ring 25. Every group link plate 22 has about two, sets up respectively 2 both sides of hanging roller roof beam, and gyro wheel 21 sets up at two link plates 22 inboardly, gallows 23 sets up two between the link plate 22 and through threaded connection, compression roller piece 24 with be threaded connection between the gallows 23, compression roller piece 24 can reciprocate relative gallows 23, realizes the micro-adjustment of stove roller position appearance, behind the stove roller link 25 with be the loose pin joint between the gallows 23.

The traversing device 3 comprises a handle 31, a gearwheel 32, a fixed seat 33, a locking screw 34, a pinion 35 and a lead screw 36. The fixed seat 33 is hinged and fixed with the beam 11, the center of the large gear 32 is movably connected to the fixed seat 33, the end face of the large gear 32 is provided with a handle 31 and a locking screw 34, the large gear 32 is meshed with the small gear 35, the small gear 35 is fixedly connected with the screw rod 36, the handle 31 can drive the large gear 35 to rotate, and the screw rod 36 is driven to rotate through the transmission of the small gear 36, so that the front and back movement of the hanging roller frame 2 is realized; when the hoist roller frame 2 reaches the working position, the lock screw 34 is tightened to lock the entire traverse device 3.

The lifting device 4 comprises a hand wheel 41, a hand wheel screw 42 and a lifting seat 43. The hand wheel 41 is fixed on a hand wheel lead screw 42, the lifting seat 43 is movably arranged on the upper end surface of the hand wheel 41, the lower end of the lead screw 42 is connected with the roller changing trolley 5 through threads, and when the position and posture of the furnace roller need to be adjusted, the hand wheel 41 is rotated to drive the hand wheel lead screw 42 to rotate, so that the lifting seat 43 moves in the vertical direction; the lifting seat 43 transfers the vertical displacement to the upper roller hanging beam to realize the position and posture adjustment of the furnace roller.

The roll changing trolley 5 comprises a trolley body 51, a positioning fork 52, a pull rod 53, a support rod 54 and wheels 55. The positioning fork 52 is movably connected to the vehicle body 51 and matched with the positioning stud 61 on the floor steel plate 6 to realize the centering of the whole roll changing tool, the pull rod 53 and the support rod 54 are in threaded connection with the vehicle body, when the roll changing trolley works, the pull rod 53 is connected with an anti-tipping threaded hole on the floor steel plate 6, and the support rod 54 is tightly pressed against the ground to jointly ensure the stability of the roll changing device during the working period; wheels 55 are arranged on the bottom surface of the trolley body 51, wherein the front wheels are fixed wheels, and the rear wheels are universal wheels with brakes and are used for adjusting the overall pose of the roller changing trolley after the positioning forks 52 finish the centering of the trolley body.

Further, the concrete connection relationship among all the parts is that the hanging roller frame 2 is arranged on the hanging roller beam 1 in a hanging way, wherein the roller 21 is arranged in a track formed by the beam 11; the traversing device 3 is fixedly arranged on the hanging roller beam 1, wherein the fixed seat 33 is hinged and fixed at the tail part of the beam 11 through a bolt; the hanging roller frame 2 is connected with the transverse moving device 3 through a screw nut, wherein a screw 36 is connected in a threaded hole formed in the hanging frame 23 through threads; the roller-hanging beam 1 is detachably arranged on the roller-changing trolley 5 and the lifting device 4, wherein the front end of the roller-hanging beam 1 is arranged in a groove corresponding to the trolley body 51 through a support frame 12, and the rear end of the roller-hanging beam 1 is in pin connection with the lifting seat 43 through a connecting frame 13; a hand wheel screw 42 in the lifting device 4 is connected in a corresponding threaded hole of the vehicle body 51 through threads; the paving steel plate 6 is provided with an anti-tipping threaded hole corresponding to the pull rod 53, and the positioning stud 61 is fixedly arranged on the paving steel plate 6 and is connected with the positioning fork 52 when the roller changing tool is positioned.

The number of the support rods is not specifically limited, the number of the support rods can be increased or decreased according to the weight of the furnace roller to be replaced, and the number of the support rods is 4 in the embodiment and the support rods are distributed on two sides of the roller replacing trolley.

The shape of the furnace roller hanging ring is not specifically limited, the shape of the furnace roller hanging ring can be changed according to actual conditions as long as the hanging ring is tightly attached to the diameter of the furnace roller, and the device can adapt to the replacement work of various furnace rollers with different sizes and specifications.

The specific implementation mode of the furnace roller replacing device of the heating furnace provided by the invention is as follows:

a preparation stage: before the device is used, the floor-paving steel plate is laid on the operation side of the heating furnace, and the positioning studs are opposite to the central lines of the furnace rollers. Pushing the roll changing trolley to approach a heating furnace roll to be changed, so that the positioning fork clamps the positioning stud to complete the positioning and centering of the device; continuously pushing the roll changing trolley to rotate around the positioning stud until the pull rod is aligned with the anti-overturning threaded hole in the floor steel plate, screwing the pull rod, locking the universal wheel brake clamp, simultaneously locking the positioning stud by using a nut, and finishing the pose adjustment of the roll changing trolley; and rotating each support rod to touch the ground, and finishing the roll changing preparation stage.

A roll changing stage: disassembling the corresponding bearing seat fixing bolt of the furnace roller, rotating a handle, and transversely moving the roller hanging frame to be close to the furnace wall of the heating furnace; rotating a hand wheel, lifting a lifting device, lifting the tail end of the lifting roller beam, and lowering the front end of the lifting roller beam; the height of the hanging roller frame is continuously reduced until the compression roller block contacts the roller neck of the furnace roller, and the furnace roller is mounted with a rear hanging ring, and at the moment, the hanging roller frame and the furnace roller form an integrated overhanging structure; and reversely rotating the hand wheel, lowering the height of the lifting device, and gradually lifting the furnace roller until the furnace roller is horizontal. The handle is rotated reversely, and the furnace roller is pulled out of the heating furnace through the hanging roller frame; after the furnace roller completely leaves the heating furnace, the locking screw is screwed down, the front hanging ring of the furnace roller is installed, meanwhile, the gap between the hanging ring and the furnace roller is adjusted through the rocking handle until the front hanging ring of the furnace roller completely contacts with the furnace roller, at the moment, the weight of the furnace roller is completely born by the two hanging rings of the furnace roller, and the process of replacing the furnace roller is finished.

And (3) a transfer stage: and (3) disassembling a pin shaft connected between the lifting roller beam and the lifting device, disassembling the lifting roller beam and the roller changing trolley at the moment, fixing a lifting belt in a lifting hole of the lifting roller beam, arranging a crown block or a crane to integrally transfer the lifting appliance and the furnace roller to a specified furnace roller placing position, disassembling two furnace roller hanging rings, and completing the whole furnace roller disassembling process.

The furnace roller is installed in the reverse process of the furnace roller disassembly, namely the operation is performed in the reverse direction from the adjustment and the transportation according to the process, and the description is omitted.

Through the embodiment, the invention has the following beneficial effects or advantages:

1) compared with the prior art, the heating furnace roller replacing device under the confined space has the advantages that the overall structure is compact, the operation is simple, the pure manual operation mode is adopted, redundant pipelines are not required to be configured, and the requirement of replacing the heating furnace roller under the confined space is met; the lifting appliance and the roll changing trolley are of a split structure, so that the furnace rolls can be conveniently and rapidly transferred; the positioning stud can assist the roll changing trolley to quickly adjust the roll changing pose, so that repeated positioning work when roll changing is required for multiple times is avoided; the lifting device can control the overhanging pose of the furnace roller in the roller changing process, can effectively prevent the furnace roller from scraping and rubbing the furnace wall or peripheral pipelines in the process of being drawn out or sent into the heating furnace, ensures that the furnace roller changing process is smoother, and obviously improves the furnace roller changing efficiency.

2) According to the furnace roller replacing device for the heating furnace in the confined space, provided by the invention, the anti-tipping pull rod and the support rod can effectively ensure the stability of the roller replacing trolley in the furnace roller replacing process, the stability of the furnace roller in the adjusting and transporting process is improved by the double-hanging ring structure, and the device ensures the safe and efficient operation of roller replacing personnel in the full working state.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. The utility model provides a heating furnace stove roller changes device under tight space which characterized in that: comprises a roller hanging beam (1), a roller hanging frame (2), a transverse moving device (3), a lifting device (4), a roller changing trolley (5) and a floor laying steel plate (6); the roller lifting frame (2) is arranged on the roller lifting beam (1) in a hanging mode, the transverse moving device (3) is fixedly arranged on the roller lifting beam (1), the roller lifting frame (2) is connected with the transverse moving device (3) through a lead screw nut, the roller lifting beam (1) is detachably arranged on the roller changing trolley (5) and the lifting device (4), the lifting device (4) is connected with the roller changing trolley (5) through threads, and the roller changing trolley (5) is arranged on the floor steel plate (6).

2. The changing apparatus according to claim 1, wherein: the roller hanging beam (1) comprises a beam (11), a support frame (12), a connecting frame (13) and a furnace roller hanging ring assembly (14); the support frames (12) are symmetrically arranged on two sides of the beam (11), the connecting frame (13) is fixedly connected to the beam (11), and the furnace roller hanging ring assembly (14) is movably arranged at the front end part of the beam (11).

3. The changing apparatus according to claim 1, wherein: the hanging roller frame (2) comprises a roller (21), two groups of hanging plates (22), a hanging bracket (23), a compression roller block (24) and a furnace roller rear hanging ring (25); every group link plate (22) have about two, set up respectively hanging roller roof beam (1) both sides, gyro wheel (21) set up link plate (22) are inboard, gallows (23) set up between link plate (22) and through threaded connection, compression roller piece (24) with be threaded connection between gallows (23), link (25) behind the stove roller with be movable pin joint between gallows (23).

4. The changing apparatus according to claim 1, wherein: the traversing device (3) comprises a handle (31), a large gear (32), a fixed seat (33), a locking screw (34), a small gear (35) and a lead screw (36); gear wheel (32) center swing joint in on fixing base (33), gear wheel (32) terminal surface is provided with handle (31) and locking screw (34), gear wheel (32) with pinion (35) intermeshing, pinion (35) with lead screw (36) fixed connection.

5. The changing apparatus according to claim 1, wherein: the lifting device (4) comprises a hand wheel (41), a hand wheel lead screw (42) and a lifting seat (43); the hand wheel (41) is fixed on a hand wheel screw rod (42), and the lifting seat (43) is movably arranged on the upper end surface of the hand wheel (41).

6. The changing apparatus according to claim 1, wherein: the roll changing trolley (5) comprises a trolley body (51), a positioning fork (52), a pull rod (53), a support rod (54) and wheels (55): the positioning fork (52) is movably connected to the vehicle body (51), the pull rod (53), the support rod (54) and the vehicle body (51) are in threaded connection, and the wheel (55) is arranged on the bottom surface of the vehicle body (51).

7. The changing apparatus according to claim 1, wherein: and the floor-laying steel plate (6) is provided with a positioning stud (61) and an anti-tipping threaded hole.

8. The changing apparatus according to claim 2, wherein: the support frame (12) is a pin shaft with a fixed seat and can freely rotate in a groove corresponding to the roll changing trolley (5).

9. The changing apparatus according to claim 2, wherein: the furnace roller hanging ring assembly (14) comprises a rocking handle (15), an eccentric shaft (16) and a furnace roller front hanging ring (17); the rocking handle (15) is fixedly connected with the eccentric shaft (16), and the furnace roller front hanging ring (17) is arranged on the eccentric shaft (16).

10. The changing apparatus according to claim 6, wherein: the front wheel of the wheel (55) is a fixed wheel, and the rear wheel is a universal wheel with brake.

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