Auxiliary tool for repairing main roller of vertical mill

Abstract

The utility model relates to the technical field of auxiliary tools, in particular to an auxiliary tool for repairing a main roller of a vertical mill, which comprises a first bottom plate and a second bottom plate, the first bottom plate and the second bottom plate are in the shape of matched semicircular rings, and the side wall of each of the first bottom plate and the second bottom plate is fixedly connected with three fixing pieces. A first sleeve is fixedly connected to the top of the fixing piece, a first sliding rod is arranged in the first sleeve, connecting blocks are fixedly connected to the top of the first sliding rod, the three connecting blocks are jointly and fixedly connected with a semi-arc plate, and matched semi-conical plates are fixedly connected to the tops of the first bottom plate and the second bottom plate. Mineral wool is arranged in the semi-arc plate and the semi-conical plate, and a plurality of heating crawler belts are arranged on the inner side of the mineral wool; according to the embodiment, disassembly and assembly are facilitated through the design of the split type structure, the heat preservation effect can be achieved through the design of mineral wool, heat can be prevented from being rapidly dissipated into air, and heating uniformity can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to auxiliary frock technical field especially is a kind of vertical mill main roller repair auxiliary frock. BACKGROUND

[0002] Vertical mill main roller is a key component in vertical roller mill, in the routine maintenance and repair work of vertical mill equipment, the disassembly of main roller and bearing is a vital link, since the interference fit design mode is used between main roller and bearing, this fit mode can ensure that equipment has good stability and reliability in the process of running, but also brings great challenge to disassembly work;

[0003] Through retrieval, a kind of China patent with the publication number CN216125755U discloses a grinding mechanism and ring roller mill, grinding mechanism includes grinding wheel assembly, spindle, bearing seat assembly;Bearing seat assembly is suitably arranged at spindle, and bearing seat assembly is fixed by bearing seat support seat;Bearing seat support seat and bearing seat assembly are flexibly connected;Grinding wheel assembly is suitably arranged at spindle, to rotate with spindle;Ring roller mill includes cylinder, classification mechanism, grinding mechanism and driving mechanism;Classification mechanism is arranged at the top of cylinder, to screen ground powder;Grinding mechanism is the above-mentioned grinding mechanism;Spindle stands in cylinder;Driving mechanism drives spindle rotation;Bearing seat support seat and bearing seat assembly are flexibly connected, can play the role of shock absorption to bearing seat assembly, thereby protecting the centering bearing in bearing seat assembly from being damaged due to shock, thereby improving the service life of bearing seat assembly, reducing the frequency of repair;

[0004] But in actual use, since the interference fit design mode is used between spindle and bearing, it is necessary to adopt heating to complete disassembly in the process of bearing disassembly, in this process, track type heating sheet as key heating element is widely used, however, the installation process of track type heating sheet in prior art is relatively cumbersome, and when track type heating sheet is used for heating, since there is lack of effective heat preservation measures, a large amount of heat energy is rapidly lost to air in heating process, not only causing electric energy waste, but also leading to uneven heating condition;

[0005] Therefore, the utility model provides a kind of vertical mill main roller repair auxiliary frock. UTILITY MODEL CONTENTS

[0006] Therefore, the technical problem to be solved by the utility model is to overcome the problem that main roller and bearing in prior art are not convenient to disassemble.

[0007] To solve the above technical problems, the utility model provides a kind of vertical mill main roller repair auxiliary tool, including first bottom plate and second bottom plate, the first bottom plate and second bottom plate are half circular ring shape, three fixed pieces are fixedly connected in the sidewall of first bottom plate and second bottom plate, first sleeve is fixedly connected in the top of fixed piece, first slide rod is arranged in the first sleeve, connecting block is fixedly connected in the top of first slide rod, three connecting blocks are fixedly connected with half circular arc plate, the top of first bottom plate and second bottom plate is fixedly connected with the half conical plate of adaptation, mineral wool is arranged in the inside of half circular arc plate and half conical plate, mineral wool inboard is provided with a plurality of heating track.

[0008] In one embodiment of the utility model, the first bottom plate and the second bottom plate are fixedly connected with first connecting ears at both ends of the top, the two first connecting ears are connected by first bolt, the half circular arc plate is fixedly connected with second connecting ears at both ends, and the two second connecting ears are connected by second bolt.

[0009] In one embodiment of the utility model, the fixed piece is rotatably connected with lead screw inside the first sleeve, the lead screw is threadedly connected with the first slide rod, the both ends of the inner wall of the first sleeve are fixedly connected with protrusion, the both ends of the first slide rod are respectively provided with recess, and the protrusion is slidably connected with the recess.

[0010] In one embodiment of the utility model, the bottom of the lead screw extends to below the fixed piece, and is fixedly connected with rotating shaft, the two adjacent rotating shafts are connected by first synchronous belt transmission, the both ends of the inner wall of the first synchronous belt are respectively engagedly connected with first synchronous wheel, and the first synchronous wheel is fixedly connected with the rotating shaft.

[0011] In one embodiment of the utility model, the first bottom plate is fixedly connected with motor at one end of the top, the output end of the motor is fixedly connected with connecting shaft, the connecting shaft and adjacent rotating shaft are connected by second synchronous belt transmission, the both ends of the inner wall of the second synchronous belt are respectively engagedly connected with second synchronous wheel, and the two second synchronous wheels are respectively fixedly connected with the connecting shaft and the rotating shaft.

[0012] In one embodiment of the utility model, the bottom of the connecting shaft is fixedly connected with first gear, the second sleeve is fixedly connected with adjacent position of the connecting shaft at the bottom of the first bottom plate, the second slide rod is slidably connected in the second sleeve, the second gear is rotatably connected at the bottom of the second slide rod, and the first gear is engagedly connected with the second gear.

[0013] In one embodiment of the utility model, the second bottom plate bottom one end rotation connection has the transmission shaft, the transmission shaft and adjacent pivot are connected through third synchronous belt transmission, third synchronous belt inner wall both ends are respectively meshed with third synchronous wheel, two third synchronous wheels are fixed connection with transmission shaft and pivot respectively, transmission shaft bottom fixed connection has third gear, third gear is meshed with second gear.

[0014] In one embodiment of the utility model, the second sleeve side wall one end is equipped with two positioning holes, second sliding rod one end is equipped with containing groove, containing groove inside slide connection has the positioning block, positioning block with positioning hole swing joint, positioning block one end fixed connection has the spring, spring is located containing groove in, with second sliding rod fixed connection.

[0015] The above technical scheme of the utility model has the following advantages compared with prior art:

[0016] The auxiliary tool is designed as a split structure by the first bottom plate and the second bottom plate, so that it is convenient to disassemble and assemble, the separated heating can be realized by the design of the semicircular plate and the semicone plate, the interval between the semicircular plate and the semicone plate can be adjusted by the design of the first sleeve and the first sliding rod, so that different types of main shafts can be heated, the mineral wool can play a heat preservation effect, which can not only avoid the rapid loss of heat to the air, but also ensure the uniformity of heating, in addition, the motor can drive the second synchronous belt and the third synchronous belt to rotate at the same time by the design of the first gear, the second gear and the third gear, so as to drive the four first synchronous belts to rotate, so as to make the six lead screws rotate synchronously, so as to ensure that the six first sliding rods ascend and descend synchronously, and the consistency of the two circular center plates when moving up and down is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail in combination with the drawings according to the specific embodiments of the utility model.

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a first bottom plate and first sleeve connection structure schematic view in the utility model;

[0020] Figure 3 It is a second bottom plate and first sleeve connection structure schematic view in the utility model;

[0021] Figure 4 It is a first synchronous wheel and pivot connection structure schematic view in the utility model;

[0022] Figure 5 It is the first gear and second gear connecting structure schematic view in the utility model;

[0023] Figure 6 It is the first sleeve and first sliding rod connecting structure schematic view in the utility model;

[0024] Figure 7 It is the first sleeve internal structure schematic view in the utility model;

[0025] Figure 8 It is the second sleeve and second sliding rod connecting structure schematic view in the utility model;

[0026] Figure 9 It is the second sliding rod side cross section structure schematic view in the utility model.

[0027] Description of the Drawings: 1, first bottom plate;2, second bottom plate;3, fixed sheet;4, first sleeve;5, first sliding rod;6, connecting block;7, semicircular arc plate;8, half conical plate;9, mineral wool;10, heating track;11, first connecting lug;12, first bolt;13, second connecting lug;14, second bolt;15, screw;16, protruding block;17, recess;18, rotating shaft;19, first synchronous belt;20, first synchronous wheel;21, motor;22, connecting shaft;23, second synchronous belt;24, second synchronous wheel;25, first gear;26, second sleeve;27, second sliding rod;28, second gear;29, transmission shaft;30, third synchronous belt;31, third synchronous wheel;32, third gear;33, positioning hole;34, accommodating groove;35, positioning block;36, spring. DETAILED DESCRIPTION

[0028] The utility model will be further explained in combination with the drawings and specific embodiment, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0029] Reference Figures 1 to 9As shown, the utility model of a kind of vertical mill main roller repair auxiliary tool, including first bottom plate 1 and second bottom plate 2, first bottom plate 1 and second bottom plate 2 are half circular ring, three fixed sheets 3 are fixedly connected in first bottom plate 1 and second bottom plate 2 side wall, first sleeve 4 is fixedly connected in the top of fixed sheet 3, first sleeve 4 is provided with first slide 5, first slide 5 top is fixedly connected with connecting block 6, three connecting blocks 6 are fixedly connected with semicircular arc plate 7, first bottom plate 1 and second bottom plate 2 top are fixedly connected with the semicone plate 8 of adaptation, semicircular arc plate 7 and semicone plate 8 inside are provided with mineral wool 9, and multiple heating caterpillar belts 10 are arranged in the inboard of mineral wool 9;First bottom plate 1 and second bottom plate 2 top two ends are fixedly connected with first connecting lug 11 respectively, two first connecting lug 11 are connected by first bolt 12, semicircular arc plate 7 two ends are fixedly connected with second connecting lug 13 respectively, and two second connecting lug 13 are connected by second bolt 14;

[0030] In the embodiment, three universal wheels are installed at the bottom of first bottom plate 1 and second bottom plate 2 to facilitate the movement of first bottom plate 1 and second bottom plate 2. During the maintenance process, first bottom plate 1 and second bottom plate 2 are moved to the vicinity of the main roller and are then sleeved together. Then, first bottom plate 1 and second bottom plate 2 are fixed by first bolt 12, and the two semicircular arc plates 7 are fixed by second bolt 14. Before disassembling the bearing, heating is required. At this time, heating caterpillar belt 10 is powered. Heating caterpillar belt 10, also known as a caterpillar heater, mainly works based on the process of converting electrical energy into heat energy. The design of mineral wool 9 can achieve the effect of heat preservation. Not only can it avoid the rapid loss of heat to the air, but also can ensure the uniformity of heating. During the heating process, heating caterpillar belt 10 is usually located on the main roller and close to the position of the interference fit surface of the bearing, so as to directly heat the area. Heating caterpillar belt 10 generates heat, which in turn causes the local temperature of the main roller to rise, thereby reducing the interference fit amount between the main roller and the bearing, and facilitating subsequent disassembly.

[0031] As shown in Figures 6 to 7 The fixed sheet 3 is rotatably connected with a lead screw 15 inside the first sleeve 4. The lead screw 15 is threadedly connected with the first slide 5. The two ends of the inner wall of the first sleeve 4 are fixedly connected with protrusions 16. The two ends of the first slide 5 are respectively provided with recesses 17. The protrusions 16 are slidably connected with the recesses 17.

[0032] In the embodiment, by rotating the lead screw 15, the first slide 5 can be moved up and down, thereby adjusting the height of the semicircular arc plate 7. The auxiliary tool can adjust the position of the semicircular arc plate according to the model and size of the main roller. The design of the protrusions 16 and the recesses 17 allows the first slide 5 to move up and down smoothly without rotating with the lead screw 15.

[0033] As shown in Figures 1 to 4As shown, the bottom of the screw rod 15 extends to the bottom of the fixed plate 3 and is fixedly connected to the rotating shaft 18. Two adjacent rotating shafts 18 are connected by a first synchronous belt 19. The two ends of the inner wall of the first synchronous belt 19 are respectively engaged with the first synchronous wheel 20, and the first synchronous wheel 20 is fixedly connected to the rotating shaft 18.

[0034] In this embodiment, the design of the first synchronous wheel 20 and the first synchronous belt 19 allows the three rotating shafts 18 on the first base plate 1 and the second base plate 2 to rotate synchronously, thereby allowing the three screw rods 15 to rotate synchronously.

[0035] like Figure 2 、 Figure 4 and Figure 5 As shown, a motor 21 is fixedly connected to one end of the top of the first base plate 1, and a connecting shaft 22 is fixedly connected to the output end of the motor 21. The connecting shaft 22 is connected to the adjacent rotating shaft 18 through a second synchronous belt 23. The inner walls of the second synchronous belt 23 are respectively engaged with second synchronous wheels 24. The two second synchronous wheels 24 are respectively fixedly connected to the connecting shaft 22 and the rotating shaft 18.

[0036] In this embodiment, the connecting shaft 22 is driven to rotate by the motor 21, thereby driving the second synchronous wheel 24 to rotate, and then driving the second synchronous belt 23 to rotate. When the second synchronous belt 23 rotates, it can drive one of the rotating shafts 18 on the first base plate 1 to rotate. At this time, the two rotating shafts 18 will rotate synchronously under the action of the two first synchronous belts 19, so that the three screw rods 15 on the first base plate 1 will rotate synchronously.

[0037] like Figures 1 to 5 As shown, the bottom of the connecting shaft 22 is fixedly connected to the first gear 25, the bottom of the first base plate 1 is located at an adjacent position of the connecting shaft 22 and is fixedly connected to the second sleeve 26, the second sleeve 26 is slidably connected to the second slide bar 27, the bottom of the second slide bar 27 is rotatably connected to the second gear 28, and the first gear 25 is meshed with the second gear 28; one end of the bottom of the second base plate 2 is rotatably connected to the transmission shaft 29, the transmission shaft 29 and the adjacent rotating shaft 18 are connected through a third synchronous belt 30, and the two ends of the inner wall of the third synchronous belt 30 are respectively meshed with third synchronous wheels 31, and the two third synchronous wheels 31 are fixedly connected to the transmission shaft 29 and the rotating shaft 18 respectively, and the bottom of the transmission shaft 29 is fixedly connected to the third gear 32, and the third gear 32 is meshed with the second gear 28;

[0038] In this embodiment, through the design of the first gear 25, the second gear 28 and the third gear 32, the motor 21 can drive the transmission shaft 29 to rotate when it is turned on, the third synchronous wheel 31 is driven to rotate when the transmission shaft 29 rotates, and the third synchronous belt 30 is driven to rotate when the third synchronous wheel 31 rotates, so that one of the two rotating shafts 18 on the second bottom plate 2 is driven to rotate, and the two rotating shafts 18 are driven to rotate synchronously under the transmission of the two first synchronous belts 19, so that the three lead screws 15 on the second bottom plate 2 are driven to rotate synchronously, and thus the lead screws 15 on the first bottom plate 1 and the second bottom plate 2 can rotate synchronously when the motor 21 is turned on, and the two semicircular arc plates 7 can be lifted synchronously. In addition, through the design of the second gear 28, the rotating direction of the third gear 32 can be consistent with that of the first gear 25, so that the rotating direction of the lead screws 15 on the first bottom plate 1 and the second bottom plate 2 can be consistent, and thus the motor 21 can ensure that the two semicircular arc plates 7 can be lifted synchronously when it is turned on.

[0039] As shown in Figure 8 and Figure 9 The second sleeve 26 is provided with two positioning holes 33 at one end of the side wall, and the second sliding rod 27 is provided with an accommodating groove 34 at one end, and the accommodating groove 34 is slidably connected with a positioning block 35, and the positioning block 35 is movably connected with the positioning hole 33, and the positioning block 35 is fixedly connected with a spring 36 at one end, and the spring 36 is located in the accommodating groove 34 and is fixedly connected with the second sliding rod 27.

[0040] In this embodiment, when the first bottom plate 1 and the second bottom plate 2 are spliced together, in order to make the second gear 28 and the third gear 32 more smoothly meshed and connected together, during operation, first press down the positioning block 35, and push the second sliding rod 27 into the second sleeve 26, so that the second gear 28 moves upward, and during the upward movement, when the positioning block 35 moves to the upper positioning hole 33, the positioning block 35 will extend out of the positioning hole 33 under the action of the spring 36, so as to fix the second sliding rod 27, and thus the position of the second gear 28 is fixed, and thus the second gear 28 will not hinder the splicing of the first bottom plate 1 and the second bottom plate 2. When the first bottom plate 1 and the second bottom plate 2 are spliced together, the second gear 28 is moved downward according to the above operation, and during the downward movement, the second gear 28 is rotated according to the tooth position of the first gear 25 and the third gear 32, so that the second gear 28 can be smoothly meshed and connected with the first gear 25 and the third gear 32.

[0041] Working principle: during maintenance, first move the first bottom plate 1 and the second bottom plate 2 to the vicinity of the main roller, and then sleeve them, then fix the first bottom plate 1 and the second bottom plate 2 through the first bolt 12, and fix the two semicircular arc plates 7 through the second bolt 14, before disassembling the bearing, heating is needed, at this time, the heating track 10 is powered on, the design of the mineral wool 9 can realize the heat preservation effect, not only can avoid the rapid loss of heat to the air, but also can ensure the uniformity of heating, during the heating process, the heating track 10 is usually located on the main roller and close to the interference fit surface of the bearing, so as to directly heat the area, the heating track 10 generates heat, and then the main roller is locally heated, so as to reduce the interference fit amount between the main roller and the bearing, and then facilitate the subsequent disassembly, when the height of the semicircular arc plate 7 needs to be adjusted, at this time, the motor 21 is turned on, the connecting shaft 22 is driven to rotate through the motor 21, so as to drive the second synchronous wheel 24 to rotate, and then drive the second synchronous belt 23 to rotate, when the second synchronous belt 23 rotates, one of the shafts 18 on the first bottom plate 1 will rotate, at this time, the two shafts 18 will rotate synchronously under the action of the two first synchronous belts 19, so that the three lead screws 15 on the first bottom plate 1 will rotate synchronously, in addition, through the design of the first gear 25, the second gear 28 and the third gear 32, the motor 21 can drive the transmission shaft 29 to rotate when it is turned on, when the transmission shaft 29 rotates, the third synchronous wheel 31 will rotate, and then the third synchronous belt 30 will rotate, when the third synchronous belt 30 rotates, one of the shafts 18 on the second bottom plate 2 will rotate, when one of the shafts 18 rotates, the two shafts 18 will rotate synchronously under the transmission action of the two first synchronous belts 19, so as to drive the three lead screws 15 on the second bottom plate 2 to rotate synchronously, therefore, when the motor 21 is turned on, the lead screws 15 on the first bottom plate 1 and the second bottom plate 2 can rotate synchronously, so that the two semicircular arc plates 7 can ascend and descend synchronously, in addition, through the design of the second gear 28, the rotation direction of the third gear 32 can be consistent with that of the first gear 25, so that the rotation direction of the lead screws 15 on the first bottom plate 1 and the second bottom plate 2 can be consistent, and then the motor 21 can ensure that the two semicircular arc plates 7 can ascend and descend synchronously when it is turned on.

[0042] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A vertical mill main roller repair auxiliary tool, comprising a first bottom plate (1) and a second bottom plate (2), characterized in that: The first bottom plate (1) and the second bottom plate (2) are in the shape of a semicircular ring that matches each other. The side walls of the first bottom plate (1) and the second bottom plate (2) are fixedly connected with three fixing plates (3). The top of the fixing plate (3) is fixedly connected with a first sleeve (4). A first slide bar (5) is arranged inside the first sleeve (4). The top of the first slide bar (5) is fixedly connected with a connecting block (6). The three connecting blocks (6) are fixedly connected with a semicircular plate (7) in common. The tops of the first bottom plate (1) and the second bottom plate (2) are fixedly connected with a matching semi-conical plate (8). Mineral wool (9) is arranged inside the semicircular plate (7) and the semi-conical plate (8). A plurality of heating tracks (10) are arranged inside the mineral wool (9).

2. The auxiliary tool for repairing the main roller of a vertical mill according to claim 1, characterized in that: The first bottom plate (1) and the second bottom plate (2) are respectively fixedly connected with first connecting ears (11) at both ends of their tops, and the two first connecting ears (11) are connected by a first bolt (12); the semicircular arc plate (7) is respectively fixedly connected with second connecting ears (13) at both ends, and the two second connecting ears (13) are connected by a second bolt (14).

3. The auxiliary tool for repairing the main roller of a vertical mill according to claim 1, characterized in that: The fixing plate (3) is located inside the first sleeve (4) and is rotatably connected to a screw rod (15). The screw rod (15) is threadedly connected to the first slide rod (5). Both ends of the inner wall of the first sleeve (4) are fixedly connected with protrusions (16). Both ends of the first slide rod (5) are provided with grooves (17). The protrusions (16) are slidably connected to the grooves (17).

4. The auxiliary tool for repairing the main roller of a vertical mill according to claim 3, characterized in that: The bottom of the screw rod (15) extends to below the fixed plate (3) and is fixedly connected to a rotating shaft (18). Two adjacent rotating shafts (18) are connected by a first synchronous belt (19). The two ends of the inner wall of the first synchronous belt (19) are respectively engaged with a first synchronous wheel (20), and the first synchronous wheel (20) is fixedly connected to the rotating shaft (18).

5. The auxiliary tool for repairing the main roller of a vertical mill according to claim 4, characterized in that: A motor (21) is fixedly connected to one end of the top of the first base plate (1), and a connecting shaft (22) is fixedly connected to the output end of the motor (21). The connecting shaft (22) is connected to the adjacent rotating shaft (18) via a second synchronous belt (23). The inner walls of the second synchronous belt (23) are respectively meshed with second synchronous wheels (24), and the two second synchronous wheels (24) are respectively fixedly connected to the connecting shaft (22) and the rotating shaft (18).

6. The auxiliary tool for repairing the main roller of a vertical mill according to claim 5, characterized in that: The bottom of the connecting shaft (22) is fixedly connected to a first gear (25); the bottom of the first base plate (1) is located adjacent to the connecting shaft (22) and is fixedly connected to a second sleeve (26); a second slide rod (27) is slidably connected in the second sleeve (26); the bottom of the second slide rod (27) is rotatably connected to a second gear (28); the first gear (25) is meshed with the second gear (28).

7. The auxiliary tool for repairing the main roller of a vertical mill according to claim 6, characterized in that: One end of the bottom of the second base plate (2) is rotatably connected to a transmission shaft (29), and the transmission shaft (29) is connected to the adjacent rotating shaft (18) through a third synchronous belt (30). The inner walls of the third synchronous belt (30) are respectively meshed with third synchronous wheels (31), and the two third synchronous wheels (31) are respectively fixedly connected to the transmission shaft (29) and the rotating shaft (18). The bottom of the transmission shaft (29) is fixedly connected to a third gear (32), and the third gear (32) is meshed with the second gear (28).

8. The auxiliary tool for repairing the main roller of a vertical mill according to claim 7, characterized in that: Two positioning holes (33) are provided at one end of the side wall of the second sleeve (26), and a receiving groove (34) is provided at one end of the second slide bar (27). A positioning block (35) is slidably connected inside the receiving groove (34), and the positioning block (35) is movably connected to the positioning hole (33). A spring (36) is fixedly connected to one end of the positioning block (35), and the spring (36) is located in the receiving groove (34) and fixedly connected to the second slide bar (27).

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