CN112607587A

CN112607587A - Lifting appliance for dismounting and mounting vertical mill roller sleeve

Info

Publication number: CN112607587A
Application number: CN202011535706.XA
Authority: CN
Inventors: 郑裕忠; 郑东山; 周春荣
Original assignee: Jiangshan South Cement Co ltd
Current assignee: Jiangshan South Cement Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-04-06
Anticipated expiration: 2040-12-23
Also published as: CN112607587B

Abstract

The invention relates to the technical field of lifting appliance equipment, and discloses a lifting appliance for dismounting a vertical grinding roller sleeve, which comprises a grinding roller sleeve body, wherein a check ring is arranged on the outer surface of the outer side of the grinding roller sleeve body, a plurality of groups of mounting seats are arranged on the outer surface of the outer side of the check ring, a lifting hook is arranged on the inner side of the mounting seat and is positioned on the outer surface of the bottom of the grinding roller sleeve body, a first connecting rod is arranged at the top of the lifting hook and is positioned on the inner side of the mounting seat, a lifting seat is arranged on the outer surface of the top of the corresponding first connecting rod, a second connecting rod is arranged in the lifting seat and is positioned on the inner side of the connecting rods on two sides, a positioning block is arranged at the bottom of the corresponding second connecting rod and is positioned. This hoist of dismouting vertical milling roller cover adopts the mode of dismouting to fix the milling roller cover to can press the milling roller cover automatically when the jack-up, stability when improving the transportation.

Description

Lifting appliance for dismounting and mounting vertical mill roller sleeve

Technical Field

The invention relates to the technical field of lifting appliance equipment, in particular to a lifting appliance for dismounting a vertical mill roller sleeve.

Background

The vertical mill is widely applied to the cement industry as an energy-saving, mature and stable grinding and drying device, such as a raw material vertical mill, a coal powder vertical mill, a mineral powder vertical mill and the like. The vertical mill roller sleeve is an important part of a vertical mill and is also a wearing part of vertical mill equipment. Because the working mechanism of the vertical mill is that materials are placed between the roller sleeve and the grinding disc for grinding, the roller sleeve of the vertical mill is worn quickly and needs to be replaced frequently. The reliability of the vertical mill is important because the shutdown of the vertical mill has a great influence on the production. If the time for replacing the roller sleeve of the vertical mill can be shortened and the reliability of the vertical mill is improved, the influence of the shutdown of the vertical mill on the production is reduced to the minimum, and the disassembly and the assembly of the roller sleeve are the most important work for replacing the roller sleeve. Therefore, a hoisting tool which is safe, reliable, simple and convenient to use and high in efficiency is important.

The roller shell lifting tool of the existing vertical mill is various in form, mostly is a threaded lifting lug and a temporary welding lifting lug, the threaded lifting lug is characterized in that four lifting lugs with external threads are screwed into a lifting threaded hole machined in the side face of the roller shell, then the roller shell is lifted by utilizing steel wire ropes, shackles and other appliances, but the lifting lugs are screwed into the lifting threaded hole difficultly, and the maintenance time is long. New product hoist and mount to the factory does not have the problem, but to the used roller shell of operation, because the operating mode is abominable, hoist and mount screw hole is easy wearing and tearing, corrosion or by material jam, therefore the lug often can't be screwed into hoist and mount screw hole. If the grinding roller is used for re-tapping, the grinding roller material has high hardness and high processing difficulty, so that the repairing time is long, and the major potential safety hazard exists; the welded type lug of interim is common in interim lifting device or work piece, and in the suitable position of the equipment that needs the hoist and mount or work piece promptly, the suitable lug of interim welding, hoist and mount completion back, again with interim welded lug cut off, this kind of mode welding degree of difficulty is high, welding time is long. The lifting lug is installed on the side surface of the roller sleeve by a welding method, and the roller sleeve has high welding difficulty and long welding time due to the fact that the base material of the grinding roller belongs to high-carbon alloy, the carbon equivalent is high, and the welding performance is poor, and further causes local stress concentration of the roller sleeve and has great potential safety hazard. Because the welding performance of the roller sleeve is poor, the physical performance of a welding line is difficult to ensure the strength required during hoisting, and the welding line is easy to be detached or broken, so that great potential safety hazards exist. Therefore, the lifting appliance for assembling and disassembling the vertical mill roller sleeve is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a lifting appliance for dismounting a vertical mill roller sleeve, which has the safe reliability of the lifting appliance, the lifting appliance adopts an integral ring design, has simple structure, good stability and high strength, is convenient for visual inspection, and effectively ensures the safe and reliable lifting process and the high efficiency of the lifting appliance: this hoist adopts high-efficient dysmorphism movable lifting hook design, and lifting hook easy dismounting has improved the work efficiency of dismouting lifting hook, has shortened maintenance duration greatly, only needs 24 hours to install, and efficiency obtains the advantage that improves by a wide margin, and it is difficult to have solved the lug and has twisted into hoist and mount screw hole, and maintenance duration is long, and the welding degree of difficulty is high, welding duration is long, has the problem of great potential safety hazard.

(II) technical scheme

For the fail safe nature who realizes above-mentioned hoist that possesses, this hoist adopts integral ring design, simple structure, and stability is good, and intensity is high, and the visual inspection of being convenient for effectively ensures hoist and mount process safe and reliable, the high efficiency of hoist: this hoist adopts the design of high-efficient dysmorphism movable lifting hook, and lifting hook easy dismounting has improved the work efficiency of dismouting lifting hook, has shortened maintenance duration greatly, only needs 24 hours can install, and efficiency obtains the purpose that improves by a wide margin, and the invention provides following technical scheme: the utility model provides a hoist of dismouting vertical mill roller cover, includes grinding roller cover body, the outside surface of grinding roller cover body is provided with the retaining ring, the outside surface of retaining ring is provided with the multiunit mount pad, the inboard setting of mount pad and the bottom surface that is located grinding roller cover body are provided with the lifting hook, the top of lifting hook and the inboard that is located the mount pad are provided with the connecting rod No. one, the top surface of a corresponding connecting rod is provided with jack-up seat, the inside of jack-up seat and the inboard that is located the connecting rod of both sides are provided with the connecting rod No. two, the bottom of No. two connecting rods that correspond and the inside that is located the retaining ring are provided with the locating piece, the bottom of locating piece and the top surface that is located grinding.

Preferably, the bottom surface of grinding roller cover body is tangent with the top surface of lifting hook, the lifting hook is four groups with the mount pad, the lifting hook is L shape structure, grinding roller cover body is circular arc structure with the retaining ring, the inboard of retaining ring is tangent with the outside of grinding roller cover body.

Preferably, the outside surface of retaining ring is fixed welding with the inboard of mount pad, the outside surface of mount pad and the outside surface of lifting hook all are provided with the multiunit mounting groove, all be provided with the round pin axle in the mounting groove of mount pad and lifting hook, the outside surface of round pin axle and the outside outward appearance that is located the lifting hook are provided with the bolt, round pin axle and mount pad and lifting hook are swing joint, the inboard of bolt is swing joint with the outside surface of round pin axle.

Preferably, a shaft lever is arranged between the first connecting rod and the mounting seat and between the first connecting rod and the second connecting rod, the first shaft lever and the first connecting rod are fixedly connected, and the first shaft lever and the mounting seat are movably connected.

Preferably, No. two connecting rods and an axostylus axostyle are swing joint, the inboard of jack-up seat is provided with the rectangular groove corresponding with a connecting rod and No. two connecting rods, a connecting rod and No. two connecting rods all are tangent with the rectangular groove of jack-up seat inside, the inside both sides of jack-up seat are provided with the spout corresponding with an axostylus axostyle, an axostylus axostyle is swing joint with the jack-up seat, the bottom and the side in the rectangular groove of jack-up seat inside are the opening.

Preferably, the corresponding second connecting rods are staggered, the corresponding second connecting rods are movably connected, a second shaft rod is arranged between the corresponding second connecting rods and the outer surface of the top of the positioning block, the second shaft rod is fixedly connected with the second connecting rods, the second shaft rod is fixedly connected with the positioning block, a sliding groove corresponding to the second shaft rod is formed in the positioning block, the second shaft rod is movably connected with the positioning block, a long groove corresponding to the second connecting rod is formed in the positioning block, and the long groove in the top of the positioning block is an opening.

Preferably, be provided with the multiunit spring between the top surface of locating piece and pressure seat, the spring is fixed connection with locating piece and pressure seat, press the seat bottom and tangent top surface in grinding roller cover body for rubber construction, press the seat and be the circular structure that the external diameter is less than the retaining ring internal diameter with the locating piece.

Preferably, the outer surface of the top of the lifting seat is provided with a lifting ring, and the lifting ring is fixedly connected with the outer surface of the top of the lifting seat.

(III) advantageous effects

Compared with the prior art, the invention provides a lifting appliance for dismounting a vertical mill roller sleeve, which has the following beneficial effects:

1. this hoist of dismouting vertical grinding roller cover through retaining ring and mount pad fixed weld to the L type structure of ring structure and lifting hook is adopted to the retaining ring, installs the mode that the grinding roller cover body adopted multi-angle couple to place, conveniently places the location of grinding roller cover body, and can change according to the external diameter size of grinding roller cover body, thereby reached simple structure, stability is good, and intensity is high, and the visual inspection of being convenient for, effectively ensures hoist and mount process safe and reliable's effect.

2. This hoist of dismouting vertical grinding roller cover inserts the inside of lifting hook and mount pad through the round pin axle to the rethread bolt is fixed, and two sets of bolts use with the round pin axle combination, when being convenient for adjust according to the external diameter of the grinding roller cover body of difference, has improved stability, and the lifting hook dismouting is more convenient from this, has improved the work efficiency of dismouting lifting hook, has shortened maintenance duration greatly, thereby has reached the effect that improves the installation effectiveness.

3. This hoist of roller shell is immediately ground in dismouting, through jack-up seat rebound, drive a connecting rod and use a axostylus axostyle as the fulcrum, slide in the outside to jack-up seat, when the connecting rod is gliding, drive No. two connecting rods and use No. two axostylus axostyles as the fulcrum, the mode that leans on mutually along the locating piece inboard slides, and No. two connecting rods that correspond are cross state, when making jack-up seat rebound, the locating piece rebound, make from this and press the top that the seat pressed the roller shell body, thereby the effect of the stability when having reached the improvement transportation.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front sectional view of the structure of the present invention;

FIG. 3 is a schematic top view of the retaining ring of the present invention;

FIG. 4 is a schematic view of the structure of the present invention showing the open configuration of the hook;

FIG. 5 is a schematic top view of a positioning block of the present invention;

fig. 6 is a front structural sectional view of the structural lifting base of the present invention.

In the figure: 1. a grinding roller sleeve body; 2. a retainer ring; 3. a mounting seat; 4. a hook; 5. a first connecting rod; 6. a lifting seat; 7. a second connecting rod; 8. positioning blocks; 9. pressing a base; 10. a pin shaft; 11. a bolt; 12. a first shaft lever; 13. a second shaft lever; 14. a spring; 15. and (4) hoisting rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, a lifting appliance for dismounting a vertical grinding roller sleeve comprises a grinding roller sleeve body 1, a retainer ring 2 is arranged on the outer surface of the outer side of the grinding roller sleeve body 1, a plurality of groups of mounting seats 3 are arranged on the outer surface of the outer side of the retainer ring 2, a lifting hook 4 is arranged on the inner side of each mounting seat 3 and is positioned on the outer surface of the bottom of the grinding roller sleeve body 1, a first connecting rod 5 is arranged on the top of each lifting hook 4 and on the inner side of each mounting seat 3, the outer surface of the top of the corresponding first connecting rod 5 is provided with a lifting seat 6, the inner sides of the connecting rods 5 positioned at the two sides in the lifting seat 6 are provided with a second connecting rod 7, the bottom of the corresponding second connecting rod 7 and the inner part of the retainer ring 2 are provided with a positioning block 8, the bottom of the positioning block 8 and the outer surface of the top of the grinding roller sleeve 1 are provided with a pressing seat 9, the pressing seat is used for pressing the grinding roller sleeve body 1, and the stability during transportation is improved.

The bottom surface of grinding roller cover body 1 is tangent with the top surface of lifting hook 4, lifting hook 4 is four groups with mount pad 3, lifting hook 4 is L shape structure, be convenient for fix grinding roller cover body 1, and make corresponding regulation, grinding roller cover body 1 is circular arc structure with retaining ring 2, be convenient for install grinding roller cover body 1, and can change according to the external diameter of grinding roller cover body 1, the inboard of grinding roller retaining ring 2 is tangent with the outside of grinding roller cover body 1.

The outside surface of retaining ring 2 is fixed welding with the inboard of mount pad 3, improve equipment's stability, the outside surface of mount pad 4 and the outside surface of lifting hook 4 all are provided with the multiunit mounting groove, all be provided with round pin axle 10 in mount pad 4 and lifting hook 4's the mounting groove, the outside surface of round pin axle 10 and the outside outward appearance that is located lifting hook 4 are provided with bolt 11, round pin axle 10 is swing joint with mount pad 4 and lifting hook 4, bolt 11's inboard is swing joint with the outside surface of round pin axle 10, when can install, adjust bolt 11 at any time, be convenient for grind the installation of roller shell body 1.

A first shaft rod 12 is arranged between the first connecting rod 5 and the mounting base 3 and between the second connecting rod 7, the first shaft rod 12 is fixedly connected with the first connecting rod 5, and the first shaft rod 12 is movably connected with the mounting base 3; the second connecting rod 7 is movably connected with the first shaft rod 12, the inner side of the lifting seat 6 is provided with a long groove corresponding to the first connecting rod 5 and the second connecting rod 7, the first connecting rod 5 and the second connecting rod 7 can move conveniently, the first connecting rod 5 and the second connecting rod 7 are both tangent to the long groove in the lifting seat 6, two sides in the lifting seat 6 for the first connecting rod are provided with sliding grooves corresponding to the first shaft rod 12, the first shaft rod 12 is movably connected with the lifting seat 6, and the bottom and the side surfaces of the long groove in the lifting seat 6 are both provided with openings; connecting rod 7 that corresponds is crisscross each other, connecting rod 7 that corresponds is swing joint, the connection of connecting rod 7 that corresponds is as the fulcrum, all be provided with No. two axostylus axostyles 13 between the top surface of connecting rod 7 that corresponds and locating piece 8, No. two axostylus axostyles 13 and No. two connecting rod 7 are fixed connection, No. two axostylus axostyles 13 are fixed connection with locating piece 8, locating piece 8's inside is provided with the spout corresponding with No. two axostylus axostyles 13, be used for No. two connecting rod 7 to remove with spacing, No. two axostylus axostyles 13 is swing joint with locating piece 8, locating piece 8's inside is provided with the rectangular groove corresponding with No. two connecting rod 7, the long groove at.

Be provided with multiunit spring 14 between the top surface of locating piece 8 and pressure seat 9, spring 14 is fixed connection with locating piece 8 and pressure seat 9, utilize the elasticity of spring 14, a pressure for seat 9 is pressed in the buffering, press seat 9 bottom and tangent top surface for rubber construction in grinding roller cover body 1, press seat 9 and locating piece 8 to be the circular structure that the external diameter is less than 2 internal diameters of retaining ring, be convenient for install and press the top of grinding roller cover body 1, stability during the improvement transportation.

The outer surface of the top of the hoisting seat 6 is provided with a hoisting ring 15, and the hoisting ring 15 is fixedly connected with the outer surface of the top of the hoisting seat 6 and is used for being connected with hoisting equipment.

When the grinding roller sleeve body 1 is installed on the inner side of the retainer ring 2 by a user, the four groups of lifting hooks 4 are rotated to the bottom of the grinding roller sleeve body 1 and are combined with the bolts 11 through the pin shafts 10 to fix the lifting hooks 4, so that equipment is installed, then the lifting equipment is connected with the lifting ring 15 by the worker, the lifting seat 6 is pulled to move upwards, the first connecting rod 5 is driven to slide towards the outer side of the lifting seat 6 by taking the first shaft rod 12 as a fulcrum, the second connecting rod 7 is driven to slide along the inner side of the positioning block 8 by taking the second shaft rod 13 as a fulcrum while the first connecting rod 5 slides, the corresponding second connecting rod 7 is in a crossed state, the positioning block 8 moves downwards while the lifting seat 6 moves upwards, so that the pressing seat 9 presses the top of the sleeve body 1, and the grinding roller can be transported by utilizing the spring 14 and the rubber structure at the bottom of the pressing seat 9, the practicability is strong.

In conclusion, the retainer ring 2 is fixedly welded with the mounting seat 3, the retainer ring 2 adopts an L-shaped structure with a circular ring structure and a lifting hook 4, the grinding roller sleeve body 1 is mounted in a multi-angle hook placing mode, the grinding roller sleeve body 1 is convenient to place and position, and can be replaced according to the outer diameter of the grinding roller sleeve body 1, so that the effects of simple structure, good stability, high strength, convenience in visual inspection and capability of effectively ensuring the safety and reliability of the hoisting process are achieved; the lifting hook 4 and the mounting base 3 are inserted into the pin shaft 10 and fixed through the bolts 11, and the two groups of bolts 11 and the pin shaft 10 are combined for use, so that the stability is improved while the adjustment is convenient according to the outer diameters of different grinding roller sleeve bodies 1, the lifting hook 4 is more convenient to disassemble and assemble, the working efficiency of disassembling and assembling the lifting hook is improved, the maintenance time is greatly shortened, and the effect of improving the installation efficiency is achieved; move upwards through jack-up seat 6, drive a connecting rod 5 and use axostylus axostyle 12 as the fulcrum, slide to jack-up seat 6's the outside, when connecting rod 5 is gliding, drive No. two connecting rods 7 and use No. two axostylus axostyles 13 as the fulcrum, the mode that leans on mutually along the locating piece 8 inboard slides, and No. two connecting rods 7 that correspond are cross state, when making jack-up seat 6 rebound, locating piece 8 moves down, make from this and press the top that seat 9 pressed grinding roller cover body 1, thereby the effect of the stability when having reached the improvement transportation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hoist of dismouting vertical milling roller cover, includes grinding roller cover body (1), its characterized in that: the outer surface of the outer side of the grinding roller sleeve body (1) is provided with a retainer ring (2), the outer surface of the outer side of the retainer ring (2) is provided with a plurality of groups of mounting seats (3), the inner side of the mounting seat (3) is provided with a lifting hook (4) which is positioned on the outer surface of the bottom of the grinding roller sleeve body (1), a first connecting rod (5) is arranged at the top of the lifting hook (4) and on the inner side of the mounting seat (3), the outer surface of the top of the corresponding first connecting rod (5) is provided with a hoisting seat (6), a second connecting rod (7) is arranged inside the hoisting seat (6) and on the inner side of the connecting rods (5) on the two sides, a positioning block (8) is arranged at the bottom of the corresponding second connecting rod (7) and in the retainer ring (2), and a pressing seat (9) is arranged at the bottom of the positioning block (8) and on the outer surface of the top of the grinding roller sleeve (1).

2. The lifting appliance for dismounting the roller sleeve of the vertical mill according to claim 1, wherein: the grinding roller sleeve is characterized in that the outer surface of the bottom of the grinding roller sleeve body (1) is tangent to the outer surface of the top of the lifting hook (4), the lifting hook (4) and the mounting seat (3) are four groups, the lifting hook (4) is of an L-shaped structure, the grinding roller sleeve body (1) and the check ring (2) are of an arc structure, and the inner side of the check ring (2) is tangent to the outer side of the grinding roller sleeve body (1).

3. The lifting appliance for dismounting the roller sleeve of the vertical mill according to claim 1, wherein: the outside surface of retaining ring (2) is fixed welding with the inboard of mount pad (3), the outside surface of mount pad (4) all is provided with the multiunit mounting groove with the outside surface of lifting hook (4), all be provided with round pin axle (10) in mount pad (4) and the mounting groove of lifting hook (4), the outside surface of round pin axle (10) and the outside surface that is located lifting hook (4) are provided with bolt (11), round pin axle (10) and mount pad (4) and lifting hook (4) are swing joint, the inboard of bolt (11) is swing joint with the outside surface of round pin axle (10).

4. The lifting appliance for dismounting the roller sleeve of the vertical mill according to claim 1, wherein: a shaft lever (12) is arranged between the first connecting rod (5) and the mounting seat (3) and between the first connecting rod and the second connecting rod (7), the first shaft lever (12) is fixedly connected with the first connecting rod (5), and the first shaft lever (12) is movably connected with the mounting seat (3).

5. The lifting appliance for dismounting the roller sleeve of the vertical mill according to claim 4, wherein: the lifting seat is characterized in that the second connecting rod (7) is movably connected with the first shaft rod (12), the inner side of the lifting seat (6) is provided with a long groove corresponding to the first connecting rod (5) and the second connecting rod (7), the first connecting rod (5) and the second connecting rod (7) are tangent to the long groove in the lifting seat (6), sliding grooves corresponding to the first shaft rod (12) are formed in two sides of the inner portion of the lifting seat (6), the first shaft rod (12) is movably connected with the lifting seat (6), and the bottom and the side face of the long groove in the lifting seat (6) are both provided with openings.

6. The lifting appliance for dismounting the roller sleeve of the vertical mill according to claim 1, wherein: the connecting rods (7) corresponding to each other are staggered, the connecting rods (7) corresponding to each other are movably connected, a second shaft rod (13) is arranged between the corresponding connecting rods (7) and the outer surface of the top of the positioning block (8), the second shaft rod (13) is fixedly connected with the second connecting rods (7), the second shaft rod (13) is fixedly connected with the positioning block (8), a sliding groove corresponding to the second shaft rod (13) is formed in the positioning block (8), the second shaft rod (13) is movably connected with the positioning block (8), a long groove corresponding to the second connecting rods (7) is formed in the positioning block (8), and the long groove in the top of the positioning block (8) is open.

7. The lifting appliance for dismounting the roller sleeve of the vertical mill according to claim 1, wherein: be provided with multiunit spring (14) between locating piece (8) and the top surface of pressing seat (9), spring (14) and locating piece (8) and press seat (9) to be fixed connection, press seat (9) bottom and tangent top surface for rubber construction in grinding roller cover body (1), press seat (9) and locating piece (8) to be the circular structure that the external diameter is less than retaining ring (2) internal diameter.

8. The lifting appliance for dismounting the roller sleeve of the vertical mill according to claim 1, wherein: the outer surface of the top of the hoisting seat (6) is provided with a hoisting ring (15), and the hoisting ring (15) is fixedly connected with the outer surface of the top of the hoisting seat (6).