CN210588462U

CN210588462U - Grinding device for outer circle of carbon felt heat-insulating cylinder

Info

Publication number: CN210588462U
Application number: CN201921306926.8U
Authority: CN
Inventors: 范世贤
Original assignee: Datong Xincheng New Material Co Ltd
Current assignee: Datong Xincheng New Material Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-05-22
Anticipated expiration: 2029-08-13

Abstract

The utility model belongs to the carbon felt heat preservation cylinder grinding field, in particular to a carbon felt heat preservation cylinder excircle grinding device, aiming at the existing carbon felt heat preservation cylinder excircle grinding device, the grinding effect is not good, the grinding efficiency is low, the problem that the dust generated by grinding can not be processed is solved, the scheme is proposed, which comprises a workbench, a servo motor is fixedly connected with the top of the workbench, a vertical plate is fixedly arranged at the top of the workbench, a connecting shaft is rotatably arranged on the vertical plate, a heat preservation cylinder is movably arranged at the outer side of the connecting shaft, the servo motor is matched with the connecting shaft, a movable plate is slidably arranged at the top of the workbench, two transverse plates are slidably arranged at one side of the movable plate, a grinding wheel is rotatably arranged at one side of the two transverse plates close to each other, the utility model has simple structure and convenient operation, can improve the grinding effect and the grinding efficiency of the heat preservation cylinder, and can process the, avoiding the pollution to the environment.

Description

Grinding device for outer circle of carbon felt heat-insulating cylinder

Technical Field

The utility model relates to a carbon felt heat preservation section of thick bamboo grinds technical field, especially relates to a carbon felt heat preservation section of thick bamboo excircle abrasive machining device.

Background

The carbon felt is a kind of material made up by weaving polyacrylonitrile base, viscose base or asphalt base fibre into felt and carbonizing it, and has the characteristics of high-temp. resistance, corrosion resistance and non-fusion of general carbon material, and also has the flexibility and elasticity of fibre material, and its volume density is small and heat conductivity coefficient is low, so that it can be extensively used in the heat-insulating components of vacuum furnace, high-temp. furnace of non-oxidation atmosphere, high-temp. induction furnace and vacuum coating furnace, etc.

The existing grinding device for the outer circle of the carbon felt heat-insulating cylinder has poor grinding effect and low grinding efficiency, and dust generated by grinding cannot be treated.

Disclosure of Invention

The utility model aims at solving the problem that the prior carbon felt heat preservation cylinder excircle grinding device exists in the prior art, the grinding effect is not good, the grinding efficiency is low, the dust that the grinding produced can't be handled the shortcoming, and the carbon felt heat preservation cylinder excircle grinding device who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a carbon felt heat preservation section of thick bamboo excircle abrasive machining device, comprises a workbench, the top fixedly connected with servo motor of workstation, the top fixed mounting of workstation has the riser, it installs the connecting axle to rotate on the riser, the outside activity of connecting axle has a heat preservation section of thick bamboo, servo motor cooperatees with the connecting axle, the top slidable mounting of workstation has the movable plate, one side slidable mounting of movable plate has two horizontal boards, one side that two horizontal boards are close to each other all rotates installs the grinding wheel, two push rod motors of fixedly connected with on the movable plate, the output shaft of two push rod motors respectively with two horizontal board fixed connection, one side of movable plate is provided with two dust absorption pipes, two dust absorption pipes all communicate there is same dust catcher, inhale the dust that the grinding produced through dust catcher and two dust absorption pipes, avoid the dust polluted.

Preferably, one side of the vertical plate is rotatably provided with a connecting plate, the connecting plate is fixedly connected with the connecting shaft, one side of the connecting plate is fixedly provided with a driving shaft, the driving shaft is rotatably connected with the vertical plate, one end of the driving shaft is fixedly provided with a first bevel gear, the workbench is rotatably provided with a longitudinal shaft, the top end of the longitudinal shaft is fixedly provided with a second bevel gear, the first bevel gear is meshed with the second bevel gear, and the connecting plate supports the connecting shaft.

Preferably, the sliding tray has been seted up at the top of workstation, and slidable mounting has the sliding block in the sliding tray, and the top of sliding block and the bottom fixed connection of movable plate have seted up the movable hole on the bottom inner wall of sliding tray, and movable mounting has the movable block in the movable hole, movable block and sliding block fixed connection, and the movable block can drive the sliding block and remove.

Preferably, two dead levers of bottom fixedly connected with of workstation, slidable mounting has the welding rod on one of two dead levers, the one end and the movable block fixed connection of welding rod, and the other end fixed mounting of welding rod has the welding strip, and the axis of ordinates cooperatees with the welding strip, and the fixed lever plays the supporting role to the welding rod.

Preferably, the spacing groove has been seted up at the top of welding strip, and slidable mounting has the stopper in the spacing groove, and the bottom fixed mounting of axis of ordinates has the elliptical wheel, and the elliptical wheel rotates with the stopper to be connected, and the axis of ordinates rotates and drives the elliptical wheel and rotate, and the elliptical wheel drives the stopper and makes a round trip to slide at the spacing inslot for welding strip can round trip movement.

Preferably, two cavities have been seted up on the movable plate, all rotate on two cavities and install same round bar, and the round bar bottom extends to the bottom and the fixed mounting of movable block has the gear, and the round bar rotates with sliding block and movable block to be connected, and the equal fixed mounting in one side that two dead levers are close to each other has same rack, and wheel and rack meshing, the gear removes on the rack and can drive the round bar and rotate.

Preferably, one side of movable plate is rotated and is installed two dwangs, and the one end of dwang all extends to in the cavity that corresponds and fixed mounting has first umbrella type gear, and the outside fixed mounting of round bar has two second umbrella type gears, and two second umbrella type gears are located two cavities respectively, and first umbrella type gear meshes with the second umbrella type gear that corresponds owing to set up two first umbrella type gears and two second umbrella type gears for the round bar drives two dwangs and rotates.

Preferably, the outside fixed mounting of dwang has a transmitting gear, rotates on the horizontal board and installs the grinding axle, and grinding axle and the grinding wheel fixed connection who corresponds, the epaxial longitudinal sliding who grinds installs square pole, and the top fixed mounting of square pole has a bend gear, and transmitting gear and the bend gear meshing that corresponds, square pole can slide and drive the grinding axle rotation on the grinding axle.

Preferably, two dovetail grooves have been seted up to one side of movable plate, and equal slidable mounting has a trapezoidal piece in two dovetail grooves, trapezoidal piece and the horizontal board fixed connection who corresponds, servo motor's output shaft fixed mounting has drive gear, and the outside fixed mounting of axis of ordinates has driven gear, drive gear and driven gear meshing, equal electrically connected with single chip microcomputer controller on servo motor, two push rod motors and the dust catcher, and the trapezoidal piece can make horizontal board only can do longitudinal sliding.

Compared with the prior art, the utility model has the advantages of:

(1) this scheme can be to the grinding of not unidimensional heat preservation section of thick bamboo through the interval of adjusting two grinding wheels.

(2) This scheme rotates through a heat preservation section of thick bamboo, and two grinding wheels carry out first grinding to a heat preservation section of thick bamboo, and the dust catcher is inhaled the dust that the grinding produced through two dust absorption pipes, avoids the dust polluted environment.

(3) This scheme drives two grinding wheel pairs through the movable plate and makes a round trip the grinding to a heat preservation section of thick bamboo, improves the grinding effect.

(4) This scheme rotates through two grinding wheels and carries out the grinding to a heat preservation section of thick bamboo, further carries out the grinding, improves grinding efficiency.

(5) This scheme sets for two push rod motors through single chip controller and slowly promotes two grinding wheels and be close to each other, can control the grinding degree of depth to a heat preservation section of thick bamboo.

The utility model discloses convenient operation can improve grinding effect and grinding efficiency to a heat preservation section of thick bamboo, can handle the dust that the grinding produced, avoids the polluted environment.

Drawings

FIG. 1 is a schematic structural view of a grinding device for the outer circle of a carbon felt thermal insulation cylinder provided by the present invention;

fig. 2 is a schematic view of a side-view connecting structure of a moving plate, a heat-insulating cylinder, a grinding wheel, a transverse plate and the like of the carbon felt heat-insulating cylinder excircle grinding device provided by the utility model;

FIG. 3 is a schematic view of the overlooking connection structure of the welding strip, the limiting block and the cam of the carbon felt thermal insulation cylinder excircle grinding device provided by the utility model;

FIG. 4 is a schematic structural view of part A of a grinding device for the outer circle of a carbon felt thermal insulation cylinder provided by the present invention;

fig. 5 is a schematic structural diagram of part B of the grinding device for the outer circle of the carbon felt thermal insulation cylinder provided by the utility model.

In the figure: 1 workbench, 2 servo motors, 3 vertical plates, 4 connecting plates, 5 connecting shafts, 6 heat preservation cylinders, 7 driving shafts, 8 longitudinal shafts, 9 sliding grooves, 10 sliding blocks, 11 moving plates, 12 transverse plates, 13 grinding wheels, 14 movable holes, 15 round rods, 16 movable blocks, 17 gears, 18 racks, 19 welding rods, 20 welding strips, 21 first bevel gears, 22 second bevel gears, 23 fixed rods, 24 elliptical wheels, 25 limiting blocks, 26 trapezoidal blocks, 27 cavities, 28 rotating rods, 29 grinding shafts, 30 square rods, 31 rotating gears, 32 redirection gears, 33 push rod motors, 34 dust collection pipes and 35 dust collectors.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, a grinding device for an excircle of a carbon felt heat-insulating cylinder comprises a workbench 1, a servo motor 2 is fixedly connected to the top of the workbench 1, a vertical plate 3 is fixedly installed at the top of the workbench 1, a connecting shaft 5 is rotatably installed on the vertical plate 3, a heat-insulating cylinder 6 is movably arranged on the outer side of the connecting shaft 5, the servo motor 2 is matched with the connecting shaft 5, a moving plate 11 is slidably installed at the top of the workbench 1, two transverse plates 12 are slidably installed on one side of the moving plate 11, grinding wheels 13 are rotatably installed on the sides, close to each other, of the two transverse plates 12, two push rod motors 33 are fixedly connected to the moving plate 11, output shafts of the two push rod motors 33 are respectively fixedly connected with the two transverse plates 12, two dust suction pipes 34 are arranged on one side of the moving plate 11, the two dust suction pipes 34 are both communicated with a same dust collector 35, and, and dust pollution to the environment is avoided.

In this embodiment, one side of riser 3 rotates and installs connecting plate 4, connecting plate 4 and connecting axle 5 fixed connection, one side fixed mounting of connecting plate 4 has drive shaft 7, drive shaft 7 rotates with riser 3 to be connected, the one end fixed mounting of drive shaft 7 has first bevel gear 21, rotate on the workstation 1 and install axis of ordinates 8, the top fixed mounting of axis of ordinates 8 has second bevel gear 22, first bevel gear 21 and the meshing of second bevel gear 22, connecting plate 4 plays supporting role to connecting axle 5.

In this embodiment, sliding tray 9 has been seted up at the top of workstation 1, and slidable mounting has sliding block 10 in sliding tray 9, and the top of sliding block 10 and the bottom fixed connection of movable plate 11 have been seted up movable hole 14 on the bottom inner wall of sliding tray 9, and movable mounting has movable block 16 in the movable hole 14, and movable block 16 and sliding block 10 fixed connection, movable block 16 can drive sliding block 10 and remove.

In this embodiment, two fixed rods 23 are fixedly connected to the bottom of the workbench 1, a welding rod 19 is slidably mounted on one fixed rod 23 of the two fixed rods 23, one end of the welding rod 19 is fixedly connected to the movable block 16, a welding strip 20 is fixedly mounted at the other end of the welding rod 19, the longitudinal axis 8 is matched with the welding strip 20, and the fixed rods 23 support the welding rod 19.

In this embodiment, the spacing groove has been seted up at the top of welding strip 20, and sliding mounting has stopper 25 in the spacing groove, and the bottom fixed mounting of axis of ordinates 8 has elliptical wheel 24, and elliptical wheel 24 rotates with stopper 25 to be connected, and axis of ordinates 8 rotates and drives elliptical wheel 24 and rotate, and elliptical wheel 24 drives stopper 25 and makes a round trip to slide at the spacing inslot for welding strip 20 can round trip to move.

In this embodiment, two cavities 27 have been seted up on the movable plate 11, all rotate on two cavities 27 and install same round bar 15, round bar 15 bottom extends to the bottom and the fixed mounting of movable block 16 has gear 17, round bar 15 rotates with sliding block 10 and movable block 16 to be connected, the equal fixed mounting in one side that two dead levers 23 are close to each other has same rack 18, gear 17 and rack 18 mesh, gear 17 moves on rack 18 and can drive round bar 15 and rotate.

In this embodiment, one side of movable plate 11 is rotated and is installed two dwang 28, the one end of dwang 28 all extends to in the cavity 27 that corresponds and fixed mounting has first umbrella type gear, the outside fixed mounting of round bar 15 has two second umbrella type gears, two second umbrella type gears are located two cavities 27 respectively, first umbrella type gear and the second umbrella type gear meshing that corresponds, owing to set up two first umbrella type gears and two second umbrella type gears, make round bar 15 drive two dwang 28 rotations.

In this embodiment, the outside fixed mounting of dwang 28 has a rotating gear 31, rotates on the transverse plate 12 and installs grinding axle 29, and grinding axle 29 and the grinding wheel 13 fixed connection who corresponds have, and vertical slidable mounting has a square pole 30 on the grinding axle 29, and the top fixed mounting of square pole 30 has a redirection gear 32, and rotating gear 31 and the redirection gear 32 meshing that corresponds, square pole 30 can slide and drive grinding axle 29 and rotate on grinding axle 29.

In this embodiment, two dovetail grooves have been seted up to one side of movable plate 11, two equal slidable mounting in the dovetail groove have trapezoidal piece 26, trapezoidal piece 26 and the horizontal board 12 fixed connection who corresponds, servo motor 2's output shaft fixed mounting has drive gear, the outside fixed mounting of axis of ordinates 8 has driven gear, drive gear and driven gear meshing, servo motor 2, equal electrically connected with single chip microcomputer controller on two push rod motor 33 and the dust catcher 35, trapezoidal piece 26 can make horizontal board 12 only can do longitudinal sliding.

Example two

Referring to fig. 1-5, a grinding device for an excircle of a carbon felt heat-insulating cylinder comprises a workbench 1, wherein the top of the workbench 1 is fixedly connected with a servo motor 2 through screws, the top of the workbench 1 is fixedly provided with a vertical plate 3 through welding, the vertical plate 3 is rotatably provided with a connecting shaft 5, the outer side of the connecting shaft 5 is movably provided with a heat-insulating cylinder 6, the servo motor 2 is matched with the connecting shaft 5, the top of the workbench 1 is slidably provided with a movable plate 11, one side of the movable plate 11 is slidably provided with two transverse plates 12, one sides of the two transverse plates 12 close to each other are rotatably provided with grinding wheels 13, the movable plate 11 is fixedly connected with two push rod motors 33 through screws, output shafts of the two push rod motors 33 are respectively fixedly connected with the two transverse plates 12 through screws, one side of the movable plate 11 is provided with two dust-absorbing pipes 34, dust generated by grinding is sucked by the dust collector 35 and the two dust collecting pipes 34, so that the dust is prevented from polluting the environment.

In this embodiment, connecting plate 4 is installed in one side rotation of riser 3, connecting plate 4 passes through screw fixed connection with connecting axle 5, there is drive shaft 7 one side of connecting plate 4 through welded fastening, drive shaft 7 rotates with riser 3 to be connected, welded fastening is passed through to the one end of drive shaft 7 and is installed first bevel gear 21, it installs axis of ordinates 8 to rotate on the workstation 1, welded fastening is passed through on the top of axis of ordinates 8 and is installed second bevel gear 22, first bevel gear 21 and the meshing of second bevel gear 22, connecting plate 4 plays the supporting role to connecting axle 5.

In this embodiment, sliding tray 9 has been seted up at the top of workstation 1, and slidable mounting has sliding block 10 in sliding tray 9, and screw fixed connection is passed through with the bottom of movable plate 11 in the top of sliding block 10, has seted up movable hole 14 on the bottom inner wall of sliding tray 9, and movable mounting has movable block 16 in the movable hole 14, and movable block 16 passes through screw fixed connection with sliding block 10, and movable block 16 can drive sliding block 10 and remove.

In this embodiment, two dead levers 23 of screw fixed connection are passed through to the bottom of workstation 1, and slidable mounting has welding rod 19 on one dead lever 23 in two dead levers 23, and the one end of welding rod 19 passes through screw fixed connection with movable block 16, and welding rod 19's the other end has welding strip 20 through welded fixed mounting, and axis of ordinates 8 cooperatees with welding strip 20, and dead lever 23 plays the supporting role to welding rod 19.

In this embodiment, the spacing groove has been seted up at the top of welding strip 20, and sliding mounting has stopper 25 in the spacing groove, and the bottom of axis of ordinates 8 has elliptical wheel 24 through welded fastening installation, and elliptical wheel 24 rotates with stopper 25 to be connected, and axis of ordinates 8 rotates and drives elliptical wheel 24 and rotate, and elliptical wheel 24 drives stopper 25 and makes a round trip to slide at the spacing inslot for welding strip 20 can round trip to move.

In this embodiment, two cavities 27 have been seted up on the movable plate 11, all rotate on two cavities 27 and install same round bar 15, the round bar 15 bottom extends to the bottom of movable block 16 and installs gear 17 through welded fastening, round bar 15 rotates with sliding block 10 and movable block 16 to be connected, two dead levers 23 one side that is close to each other all installs same rack 18 through welded fastening, gear 17 and rack 18 meshing, gear 17 moves on rack 18 and can drive round bar 15 and rotate.

In this embodiment, one side of movable plate 11 is rotated and is installed two dwang 28, the one end of dwang 28 all extends to in the cavity 27 that corresponds and has first umbrella gear through welded fastening, the outside of round bar 15 has two second umbrella gears through welded fastening, two second umbrella gears are located two cavities 27 respectively, first umbrella gear and the second umbrella gear meshing that corresponds, owing to set up two first umbrella gears and two second umbrella gears, make round bar 15 drive two dwang 28 rotations.

In this embodiment, the outside of dwang 28 has a rotating gear 31 through welded fastening, and the last rotation of transverse plate 12 installs grinding axle 29, and grinding axle 29 passes through screw fixed connection with the grinding wheel 13 that corresponds, and vertical slidable mounting has a square pole 30 on the grinding axle 29, and the top of square pole 30 has a redirection gear 32 through welded fastening, and rotating gear 31 meshes with corresponding redirection gear 32, and square pole 30 can slide and drive grinding axle 29 and rotate on grinding axle 29.

In this embodiment, two dovetail grooves have been seted up to one side of movable plate 11, two equal slidable mounting in the dovetail groove have trapezoidal piece 26, trapezoidal piece 26 passes through screw fixed connection with the horizontal plate 12 that corresponds, servo motor 2's output shaft has drive gear through welded fastening installation, the outside of axis of ordinates 8 has driven gear through welded fastening installation, drive gear and driven gear meshing, servo motor 2, equal electric connection has single chip microcomputer controller on two push rod motors 33 and the dust catcher 35, trapezoidal piece 26 can make horizontal plate 12 only can do longitudinal sliding.

In the embodiment, when the vacuum cleaner is used, the servo motor 2, the two push rod motors 33 and the vacuum cleaner 35 are all powered on, the heat preservation cylinder 6 is sleeved on the outer side of the connecting shaft 5 and fixed through the nuts, the two push rod motors 33 are started, the two push rod motors 33 push the two transverse plates 12 to be close to each other, the two transverse plates 12 drive the two grinding wheels 13 to be close to each other, the square rod 30 slides on the corresponding grinding shaft 29 until the two grinding wheels 13 are in contact with the outer side of the heat preservation cylinder 6, the heat preservation cylinders 6 with different sizes can be ground by adjusting the distance between the two grinding wheels 13, the servo motor 2 and the vacuum cleaner 35 are started, the servo motor 2 drives the longitudinal shaft 8 to rotate due to the arrangement of the driving gear and the driven gear, the driving shaft 7 is driven to rotate by the longitudinal shaft 8 due to the arrangement of the first bevel gear 21 and the second bevel gear 22, the driving shaft 7 drives, the heat preservation cylinder 6 is primarily ground through the two grinding wheels 13, dust generated by grinding is absorbed through the two dust absorption pipes 34 by the dust collector 35, dust pollution to the environment is avoided, meanwhile, the longitudinal shaft 8 drives the elliptical wheel 24 to rotate, the elliptical wheel 24 drives the limiting block 25 to slide back and forth in the limiting groove, so that the welding strip 20 can move back and forth, the welding strip 20 drives the welding rod 19 to move back and forth, the fixing rod 23 supports the welding rod 19, the welding rod 19 drives the movable plate 11 to move back and forth through the movable block 16 and the sliding block 10, the movable plate 11 drives the two grinding wheels 13 to grind back and forth the heat preservation cylinder 6, the grinding effect is improved, the movable plate 11 drives the round rod 15 to move back and forth, the round rod 15 drives the gear 17 to move back and forth on the rack 18, so that the round rod 15 rotates back and forth, and because the two first bevel gears and the two second bevel gears are arranged, the round rod, owing to set up two rotating gear 31 and two redirection gear 32, make two dwang 28 drive two square poles 30 respectively and rotate, two square poles 30 drive two grinding axles 29 respectively and rotate, two grinding axles 29 drive two grinding wheels 13 respectively and rotate and grind heat preservation section of thick bamboo 6, further grind, improve grinding efficiency, can set for two push rod motor 33 through the single chip microcomputer controller simultaneously and slowly promote two grinding wheels 13 and be close to each other, can deepen the grinding degree of depth to heat preservation section of thick bamboo 6, the grinding is accomplished the back, stop servo motor 2, two push rod motor 33 are opened in the reverse direction, make two grinding wheels 13 keep away from each other, it can to take off heat preservation section of thick bamboo 6.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a carbon felt heat preservation section of thick bamboo excircle abrasive machining device, comprises a workbench and is characterized in that, the top fixedly connected with servo motor of workstation, the top fixed mounting of workstation has the riser, it installs the connecting axle to rotate on the riser, the outside activity of connecting axle has a heat preservation section of thick bamboo, servo motor cooperatees with the connecting axle, the top slidable mounting of workstation has the movable plate, one side slidable mounting of movable plate has two horizontal boards, one side that two horizontal boards are close to each other all rotates installs the grinding wheel, two push rod motors of fixedly connected with on the movable plate, the output shaft of two push rod motors respectively with two horizontal board fixed connection, one side of movable plate is provided with two dust absorption pipes, two dust absorption pipes all communicate there is same dust catcher.

2. The grinding device for the excircle of the carbon felt thermal insulation cylinder according to claim 1, wherein a connecting plate is rotatably mounted on one side of the vertical plate and fixedly connected with a connecting shaft, a driving shaft is fixedly mounted on one side of the connecting plate and rotatably connected with the vertical plate, a first bevel gear is fixedly mounted at one end of the driving shaft, a longitudinal shaft is rotatably mounted on the worktable, a second bevel gear is fixedly mounted at the top end of the longitudinal shaft, and the first bevel gear is meshed with the second bevel gear.

3. The carbon felt heat preservation cylinder excircle grinding device as claimed in claim 1, wherein a sliding groove is formed in the top of the workbench, a sliding block is slidably mounted in the sliding groove, the top of the sliding block is fixedly connected with the bottom of the moving plate, a movable hole is formed in the inner wall of the bottom of the sliding groove, a movable block is movably mounted in the movable hole, and the movable block is fixedly connected with the sliding block.

4. The carbon felt thermal insulation cylinder excircle grinding processing device as claimed in claim 1, wherein two fixed rods are fixedly connected to the bottom of the workbench, a welding rod is slidably mounted on one fixed rod of the two fixed rods, one end of the welding rod is fixedly connected with the movable block, the other end of the welding rod is fixedly mounted with a welding strip, and the longitudinal axis of the welding rod is matched with the welding strip.

5. The carbon felt thermal insulation cylinder excircle grinding processing device as claimed in claim 4, wherein the top of the welding strip is provided with a limiting groove, a limiting block is slidably mounted in the limiting groove, an elliptical wheel is fixedly mounted at the bottom end of the longitudinal shaft, and the elliptical wheel is rotatably connected with the limiting block.

6. The grinding device for the outer circle of the carbon felt thermal insulation cylinder as claimed in claim 1, wherein the moving plate is provided with two cavities, the two cavities are rotatably provided with a same round bar, the bottom end of the round bar extends to the bottom of the movable block and is fixedly provided with a gear, the round bar is rotatably connected with the sliding block and the movable block, one side of the two fixed bars, which is close to each other, is fixedly provided with a same rack, and the gear is meshed with the rack.

7. The carbon felt heat preservation cylinder excircle grinding device according to claim 1, wherein one side of the moving plate is rotatably provided with two rotating rods, one end of each rotating rod extends into a corresponding cavity and is fixedly provided with a first bevel gear, the outer side of each round rod is fixedly provided with two second bevel gears, the two second bevel gears are respectively positioned in the two cavities, and the first bevel gears are meshed with the corresponding second bevel gears.

8. The carbon felt thermal insulation cylinder excircle grinding device according to claim 7, wherein a rotating gear is fixedly mounted on the outer side of the rotating rod, a grinding shaft is rotatably mounted on the transverse plate and fixedly connected with a corresponding grinding wheel, a square rod is longitudinally slidably mounted on the grinding shaft, a direction changing gear is fixedly mounted at the top end of the square rod, and the rotating gear is meshed with the corresponding direction changing gear.

9. The carbon felt heat preservation cylinder excircle grinding device according to claim 1, characterized in that two trapezoidal grooves are formed in one side of the moving plate, trapezoidal blocks are slidably mounted in the two trapezoidal grooves, the trapezoidal blocks are fixedly connected with corresponding transverse plates, a driving gear is fixedly mounted on an output shaft of a servo motor, a driven gear is fixedly mounted on the outer side of the longitudinal shaft, the driving gear is meshed with the driven gear, and a single chip microcomputer controller is electrically connected to the servo motor, the two push rod motors and the dust collector.