CN212581436U

CN212581436U - Frock is changed to roller shell of calender

Info

Publication number: CN212581436U
Application number: CN202022123686.7U
Authority: CN
Inventors: 郭钢; 叶力榕; 贺红兵
Original assignee: Guilin Rubber Design Institute Co ltd
Current assignee: Guilin Rubber Design Institute Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-02-23
Anticipated expiration: 2030-09-24

Abstract

The utility model provides a frock is changed to roller shell of calender for transport the roller shell to the position corresponding with the rotation axis of calender, perhaps will follow the roller shell transport that the rotation axis was pulled down to other target location, this frock is changed to roller shell includes: the device comprises a frame body, lifting equipment and a tray for bearing a roller sleeve; lifting means fixed mounting is on the support body, and the tray level sets up and is connected with lifting means, makes lifting means can drive the tray and drives the roller shell along vertical direction reciprocating motion. The utility model has the advantages of can reduce operating personnel's intensity of labour, improve production efficiency, can also reduce the probability that the production accident appears simultaneously, be favorable to the safety in production.

Description

Frock is changed to roller shell of calender

Technical Field

The utility model relates to a tire production technical field, in particular to frock is changed to roller shell of calender.

Background

The meridian all-steel inner liner without the inner tube adopts a double-layer composite technology, the two inner liners are a transition layer and an airtight layer, and a calender is required to press a process shape on the surface of the transition layer and/or the airtight layer in the process of manufacturing the transition layer and/or the airtight layer. In order to meet different requirements, the process shapes of the transition layer and/or the airtight layer are pressed on the surfaces of the transition layer and/or the airtight layer, so that a roller sleeve of a compression roller in a calender needs to be replaced to meet different working requirements. At present, the roller sleeve is replaced by manually adjusting the position of the roller sleeve, and because the roller sleeve is heavy (about half a ton), the position of the roller sleeve is adjusted by a manual mode, so that the labor intensity is high, the working efficiency is low, production accidents are easy to occur, and the safety is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a frock is changed to roller shell of calender can reduce operating personnel's intensity of labour, improves production efficiency, can also reduce the probability that the production accident appears simultaneously, is favorable to the safety in production.

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

a roll shell changing tool for a calender to transport a roll shell to a position corresponding to a rotational axis of the calender or to transport a roll shell detached from the rotational axis to other target positions, the roll shell changing tool comprising: the device comprises a frame body, lifting equipment and a tray for bearing the roller sleeve;

lifting means fixed mounting be in on the support body, the tray level set up with lifting means connects, makes lifting means can drive the tray drives roller shell is along vertical direction reciprocating motion.

Preferably, the device also comprises a first bearing plate, a rotating body and a mounting part;

the mounting component is fixedly connected to the upper surface of the tray, a first mounting hole and a second mounting hole are formed in the mounting component, the first mounting hole and the second mounting hole are cylindrical, the axes of the first mounting hole and the second mounting hole are perpendicular to the upper surface of the tray, the first mounting hole and the second mounting hole are sequentially arranged from top to bottom and are communicated with each other, the diameter of the first mounting hole is smaller than that of the second mounting hole, and an opening is formed in the upper surface of the mounting component by the first mounting hole;

the rotating body comprises a first rotating part and a second rotating part, the first rotating part and the second rotating part are both cylindrical, the axes of the first rotating part and the second rotating part are overlapped, the diameter of the first rotating part is smaller than that of the first mounting hole, the diameter of the second rotating part is larger than that of the first mounting hole and smaller than that of the second mounting hole, the second rotating part is arranged in the second mounting hole, and the first rotating part is arranged in the first mounting hole in a penetrating mode and extends out of the first mounting hole from the opening;

the first bearing plate is horizontally arranged, one end of the first rotating part, extending out of the opening, is fixedly connected to the lower surface of the first bearing plate, the roller sleeve can be arranged on the upper surface of the first bearing plate, and the rotating body can rotate around the axis of the first rotating part to drive the roller sleeve to rotate through the first bearing plate.

Preferably, the device further comprises a positioning screw;

the side wall of the second mounting hole is provided with a positioning screw hole matched with the positioning screw, and the positioning screw is in threaded connection with the positioning screw hole and can be abutted to the second rotating part.

Preferably, the number of the positioning screw holes is at least two, the positioning screw holes are uniformly distributed along the circumferential direction of the second mounting hole, and the number of the positioning screws is equal to that of the positioning screw holes and corresponds to that of the positioning screw holes one to one.

Preferably, the device further comprises a first rail and a second bearing plate;

the first track extends horizontally and is fixedly connected to the upper surface of the first bearing plate, the second bearing plate is in a horizontal mode, the roller sleeve can be placed on the upper surface of the second bearing plate, and the lower surface of the second bearing plate is provided with a first travelling wheel, so that the second bearing plate can drive the roller sleeve to move along the first track through the first travelling wheel.

Preferably, the device further comprises a second rail and a third bearing plate;

the second track extends along the horizontal direction, the extending direction of the second track is perpendicular to the extending direction of the first track, the second track is fixedly connected to the upper surface of the second bearing plate, the third bearing plate is horizontally arranged, the roller sleeve can be arranged on the upper surface of the third bearing plate, and the lower surface of the third bearing plate is provided with a second travelling wheel, so that the third bearing plate can drive the roller sleeve to move along the second track through the second travelling wheel.

Preferably, a bearing part is arranged on the upper surface of the third bearing plate;

the bearing component comprises an upright column and a bearing shaft, the upright column is vertically arranged, the lower end of the upright column is fixedly connected to the upper surface of the third bearing plate, the bearing shaft is cylindrical, the diameter of the bearing shaft is smaller than the inner diameter of the roller sleeve, the axis of the bearing shaft is horizontal, one end of the bearing shaft is fixedly connected with the top end of the upright column, the other end of the bearing shaft is in a free state, and the roller sleeve can be sleeved on the bearing shaft through the end, in the free state, of the bearing shaft.

Preferably, the frame body comprises a cross beam and a supporting leg;

the crossbeam level sets up, the landing leg is vertical to be set up, the quantity of landing leg is two, two the top of landing leg is fixed connection respectively in the both ends of crossbeam extending direction makes the crossbeam forms door shape with two the landing leg, lifting means fixed mounting is in on the crossbeam, two the bottom of landing leg all is provided with the universal wheel.

Preferably, the device also comprises a connecting part and a limiting part;

the connecting part is fixedly connected with the tray, the lifting equipment is in transmission connection with the connecting part, so that the lifting equipment can drive the connecting part to drive the tray to reciprocate along the vertical direction, and a first limiting groove is formed in the connecting part;

the limiting part is fixedly connected with the tray, a second limiting groove corresponding to the first limiting groove is arranged on the limiting part, and the first limiting groove and the second limiting groove jointly form a limiting hole;

the rack body is provided with a guide rod fixedly connected with the cross beam, and the guide rod is vertically arranged and penetrates through the limiting hole, so that the tray can do reciprocating motion in the vertical direction along the guide rod.

Preferably, the number of the lifting devices is two, and the two lifting devices are arranged at intervals along the extending direction of the cross beam;

and/or the number of the guide rods is two, and the two guide rods are arranged at intervals along the extending direction of the cross beam.

The utility model discloses a frock is changed to roller shell of calender is through adopting lifting means fixed mounting is in on the support body, the tray level set up with lifting means connects, makes lifting means can drive the tray drives roller shell can reduce operating personnel's intensity of labour along vertical direction reciprocating motion's technical scheme, improves production efficiency, can also reduce the probability that the production accident appears simultaneously, is favorable to the safety in production.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a roll sleeve replacing tool of a calender of the present invention;

FIG. 2 is an enlarged view of portion I of FIG. 1;

FIG. 3 is a schematic sectional view taken along line A-A of FIG. 2 (showing the roller shell and the rotating shaft of the calender);

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a schematic cross-sectional view taken along line C-C of FIG. 2;

fig. 6 is a schematic cross-sectional view taken along line D-D in fig. 1.

In the figure: 1-roller sleeve; 2-a rotating shaft; 3, a frame body; 31-a lifting device; 32-a cross beam; 33-a leg; 34-universal wheels; 35-a guide rod; 4-a tray; 5-a first bearing plate; 51-a rotating body; 52-first rotating part; 53-a second rotating part; 54-installing the firmware; 55-a first mounting hole; 56-second mounting hole; 57-set screws; 58-positioning screw holes; 6-a second support plate; 61-a first track; 62-a first travelling wheel; 63-a third support plate; 64-a second track; 65-a second travelling wheel; 7-a carrier member; 71-upright post; 72-a carrier shaft; 8-a connecting member; 81-a first limiting groove; 9-a stop member; 91-second limit groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description will be made in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 3, a roll shell exchanging tool of a calender is used to transport a roll shell 1 to a position corresponding to a rotating shaft 2 of the calender or transport the roll shell 1 detached from the rotating shaft 2 to other target positions.

As shown in fig. 1, the tooling for replacing the roll shell of the calender in this embodiment includes: a frame body 3, a lifting device 31 and a tray 4 for carrying the roller sleeve 1. Lifting means 31 fixed mounting is on

support body

3, and 4 levels on the tray set up to be connected with lifting means 31, make lifting means 31 can drive 4 drive roller shell 1 along vertical direction reciprocating motion of tray. When manufacturing the lifting device 31, a linear driving device such as an air cylinder or an electric push rod can be adopted. It should be noted that, in actual operation, the axis of the rotating shaft extends in the horizontal direction, so the axis of the roller sleeve carried by the tray 4 should extend in the horizontal direction, and when the roller sleeve 1 can be lifted to a height corresponding to the rotating shaft 2 (i.e. the axis of the roller sleeve 1 and the axis of the rotating shaft 2 are at the same horizontal height) by the lifting action of the lifting device, so as to fit the roller sleeve 1 on the rotating shaft 2. When dismantling roller shell 1, also can adjust suitable position height with the tray, when dismantling roller shell 1 from rotation axis 2 again, make the tray can directly bear roller shell 1 and avoid it to take place to fall. By adopting the technical scheme, the labor intensity of operators is reduced, the production efficiency is improved, meanwhile, the probability of production accidents can be reduced, and the safety production is facilitated.

As an embodiment, as shown in fig. 1, 2 and 3, the first support plate 5, the rotating body 51 and the mounting member 54 are further included. The mounting part 54 is fixedly connected to the upper surface of the tray 4, the mounting part 54 is provided with a first mounting hole 55 and a second mounting hole 56, the first mounting hole 55 and the second mounting hole 56 are both cylindrical, the axes of the first mounting hole 55 and the second mounting hole 56 are perpendicular to the upper surface of the tray 4, the first mounting hole 55 and the second mounting hole 56 are sequentially arranged from top to bottom and are communicated with each other, the diameter of the first mounting hole 55 is smaller than that of the second mounting hole 56, and the first mounting hole 55 forms an opening on the upper surface of the mounting part 54. The rotating body 51 includes a first rotating portion 52 and a second rotating portion 53, both the first rotating portion 52 and the second rotating portion 53 are cylindrical, and the axes of the first rotating portion 52 and the second rotating portion 53 are overlapped, the diameter of the first rotating portion 52 is smaller than the diameter of the first mounting hole 55, the diameter of the second rotating portion 53 is larger than the diameter of the first mounting hole 55 and smaller than the diameter of the second mounting hole 56, the second rotating portion 53 is disposed in the second mounting hole 56, and the first rotating portion 52 is disposed in the first mounting hole 55 in a penetrating manner and extends from the opening to the outside of the first mounting hole 55. First bearing plate 5 is placed horizontally, and the one end fixed connection that first rotating part 52 stretches out from the opening is on the lower surface of first bearing plate 5, and roller shell 1 can be placed on the upper surface of first bearing plate 5, and rotator 51 can use the axis of first rotating part 52 as the center rotation to drive roller shell 1 through first bearing plate 5 and rotate. When the roller shell 1 is lifted to a position corresponding to the rotating shaft 2 (a position when the axis of the roller shell 1 and the axis of the rotating shaft 2 are at the same horizontal height) under the driving action of the lifting device 31, the rotating body 51 can be rotated to adjust the extending direction of the axis of the roller shell 1 to be the same as the extending direction of the axis of the rotating shaft 2, so that the roller shell 1 can be conveniently sleeved on the rotating shaft 2.

As shown in fig. 3, the rotary mechanism further includes a positioning screw 57, a positioning screw hole 58 matching with the positioning screw 57 is provided in a side wall of the second mounting hole 56, and the positioning screw 57 is screwed into the positioning screw hole 58 and can abut against the second rotating portion 53. When the roller shell 1 is driven by the rotating body 51 to rotate to a target position in use, the rotating body 51 and the mounting part 54 can be fixed together by screwing the positioning screw 57, so that the axial direction of the roller shell 1 is kept unchanged in the replacement process, and the smooth replacement is ensured. In actual manufacturing, the number of the positioning screw holes 58 is at least two, the at least two positioning screw holes 58 are uniformly distributed along the circumferential direction of the second mounting hole 56, and the number of the positioning screws 57 is equal to that of the positioning screw holes 58 and corresponds to one another. This ensures that the rotating body 51 and the mounting member 54 can be firmly fixed to each other.

Preferably, as shown in fig. 1, 2 and 3, the roller sleeve further comprises a first rail 61 and a second supporting plate 6, the first rail 61 extends horizontally and is fixedly connected to the upper surface of the first supporting plate 5, the second supporting plate 6 is horizontal, the roller sleeve 1 can be placed on the upper surface of the second supporting plate 6, and a first traveling wheel 62 is arranged on the lower surface of the second supporting plate 6, so that the second supporting plate 6 can drive the roller sleeve 1 to move along the first rail 61 through the first traveling wheel 62. The extending direction of the first track 61 is perpendicular to the axis direction of the roller shell 1 borne by the second bearing plate 6, as described above, in the using process, when the lifting device 31 lifts the roller shell 1 to the target height, and then the rotating body 51 drives the roller shell 1 to rotate to the target position, the axis of the roller shell 1 is parallel to the axis of the rotating shaft 2 and is located on the same horizontal plane, at this time, the second bearing plate 6 can be driven to move along the first track 61, so that the axis of the roller shell 1 is overlapped with the axis of the rotating shaft 2, and thus the roller shell 1 is driven to move along the axis direction by manual operation or other driving devices, so that the roller shell 1 can be easily sleeved on the rotating shaft 2, and convenience is brought to the replacing work. In practical manufacturing, to ensure the stability of the operation of the second support plate 6, as shown in the figure, the number of the first tracks 61 is two, the number of the first running wheels 62 is at least 4, and at least two first running wheels 62 correspond to one first track 61.

More preferably, as shown in fig. 1, 2 and 3, the roller sleeve further includes a second rail 64 and a third supporting plate 63, the second rail 64 extends along a horizontal direction, and an extending direction of the second rail 64 is perpendicular to an extending direction of the first rail 61, the second rail 64 is fixedly connected to an upper surface of the second supporting plate 6, the third supporting plate 63 is horizontally placed, the roller sleeve 1 can be placed on an upper surface of the third supporting plate 63, and a second traveling wheel 65 is disposed on a lower surface of the third supporting plate 63, so that the third supporting plate 63 can drive the roller sleeve 1 to move along the second rail 64 via the second traveling wheel 65. By adopting the technical scheme, when the axis of the roller sleeve 1 is coincident with the axis of the rotating shaft, the third bearing plate 63 can be driven to move along the second track 64, so that the roller sleeve 1 can be close to the rotating shaft 2 as much as possible, the moving distance of the roller sleeve 1 in the replacement process is further reduced, and the labor intensity is reduced. In practical manufacturing, to ensure the stability of the third supporting plate 63, as shown in the figure, the number of the second tracks 64 is two, the number of the second running wheels 65 is at least 4, and at least two second running wheels 65 correspond to one second track 64.

Specifically, as shown in fig. 3 and 4, a bearing member 7 is disposed on the upper surface of the third bearing plate 63, the bearing member 7 includes an upright 71 and a bearing shaft 72, the upright 71 is disposed vertically and the lower end is fixedly connected to the upper surface of the third bearing plate 63, the bearing shaft 72 is in a cylindrical shape with a diameter smaller than the inner diameter of the roller shell 1, the axis of the bearing shaft 72 is horizontal, and one end of the bearing shaft is fixedly connected to the top end of the upright 71, and the other end is in a free state, so that the roller shell 1 can be sleeved on the bearing shaft 72 through the end of the bearing shaft 72 in the free state. During actual manufacturing, two bearing parts can be used, when the roller shell mounting device is used, one bearing part 7 bears the roller shell 1 to be mounted, the other bearing part 7 is in an idle load state, the bearing shaft 72 in the idle load state bearing part 7 is adjusted to the position corresponding to the rotating shaft 2, the roller shell 1 sleeved on the rotating shaft 2 is driven to move along the axial direction through manual operation or other driving devices, the roller shell 1 is sleeved on the bearing shaft 72 in the idle load state bearing part 7 while retreating from the rotating shaft 2, the position of the roller shell 1 to be mounted is adjusted after the dismounting operation is completed to enable the roller shell 1 to correspond to the rotating shaft 2, then the roller shell 1 to be mounted is driven to move along the axial direction, the roller shell is sleeved on the rotating shaft 2 while retreating from the bearing shaft 72, and the mounting operation is completed.

As an embodiment, as shown in fig. 1, the frame body 3 includes a cross beam 32 and a leg 33;

crossbeam 32 level setting, landing leg 33 is vertical to be set up, and the quantity of landing leg 33 is two, and the top of two landing legs 33 is fixed connection respectively at the both ends of crossbeam 32 extending direction, makes crossbeam 32 and two landing legs 33 form door shape, and lifting means 31 fixed mounting is on crossbeam 32, as shown in fig. 1 and fig. 6, all is provided with universal wheel 34 in the bottom of two landing legs 33. Can be convenient for like this to the roller shell change frock remove, improve the adaptability of work, in order to guarantee the holistic stability of this roller shell change frock, when actual preparation, can respectively set up two universal wheels 34 in every landing leg 33 bottom to make these 4 universal wheels 34 be rectangular array on same level and arrange.

As an embodiment, as shown in fig. 1, 2 and 5, the device further comprises a connecting part 8 and a limiting part 9. Connecting part 8 and tray 4 fixed connection, lifting means 31 is connected with connecting part 8 transmission, makes lifting means 31 can drive connecting part 8 and drive tray 4 along vertical direction reciprocating motion, is provided with first spacing recess 81 on connecting part 8. The limiting component 9 is fixedly connected with the tray 4, a second limiting groove 91 corresponding to the first limiting groove 81 is arranged on the limiting component 9, and the first limiting groove 81 and the second limiting groove 91 jointly form a limiting hole. The frame body 3 is provided with a guide rod 35 fixedly connected with the cross beam 32, and the guide rod 35 is vertically arranged and penetrates through the limiting hole, so that the tray 4 can do reciprocating motion in the vertical direction along the guide rod 35. By adopting the technical scheme, the stability of the tray 4 in the vertical direction can be ensured, and the swing perpendicular to the moving direction is avoided.

Further, as shown in fig. 1 and 2, the number of the lifting devices 31 is two, and the two lifting devices 31 are arranged at intervals along the extending direction of the cross beam 32; and/or the number of the guide rods 35 is two, and the two guide rods 35 are arranged at intervals along the extending direction of the cross beam 32. In the horizontal direction in actual manufacturing, two lifting devices 31 may be located on both sides of the tray 4, which can ensure that the lifting force borne by the tray 4 is uniform. Also in the horizontal direction, two guide rods 35 may be located on both sides of the tray 4, so that the stability of the operation of the tray 4 is further ensured.

The embodiment makes above has the advantages of can reduce operating personnel's intensity of labour, improve production efficiency, can also reduce the probability that the production accident appears simultaneously, be favorable to the safety in production.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a frock is changed to roller shell of calender for transport roller shell (1) to with the position that rotation axis (2) of calender correspond, or will follow roller shell (1) that pulls down on rotation axis (2) transport other target location, its characterized in that:

the method comprises the following steps: the device comprises a frame body (3), lifting equipment (31) and a tray (4) used for bearing the roller sleeve (1);

lifting means (31) fixed mounting be in on support body (3), tray (4) level set up with lifting means (31) are connected, make lifting means (31) can drive tray (4) drive roller shell (1) is along vertical direction reciprocating motion.

2. The roller shell replacing tool according to claim 1, characterized in that:

the device also comprises a first bearing plate (5), a rotating body (51) and a mounting component (54);

the mounting component (54) is fixedly connected to the upper surface of the tray (4), a first mounting hole (55) and a second mounting hole (56) are formed in the mounting component (54), the first mounting hole (55) and the second mounting hole (56) are both cylindrical, the axes of the first mounting hole (55) and the second mounting hole (56) are perpendicular to the upper surface of the tray (4), the first mounting hole (55) and the second mounting hole (56) are sequentially arranged from top to bottom and are communicated with each other, the diameter of the first mounting hole (55) is smaller than that of the second mounting hole (56), and an opening is formed in the upper surface of the mounting component (54) by the first mounting hole (55);

the rotating body (51) comprises a first rotating part (52) and a second rotating part (53), the first rotating part (52) and the second rotating part (53) are both cylindrical, the axes of the first rotating part and the second rotating part are coincident, the diameter of the first rotating part (52) is smaller than that of the first mounting hole (55), the diameter of the second rotating part (53) is larger than that of the first mounting hole (55) and smaller than that of the second mounting hole (56), the second rotating part (53) is arranged in the second mounting hole (56), and the first rotating part (52) is arranged in the first mounting hole (55) in a penetrating mode and extends out of the first mounting hole (55) from the opening;

the first bearing plate (5) is horizontally placed, the first rotating part (52) is fixedly connected to the lower surface of the first bearing plate (5) through one end, extending out of the opening, of the first rotating part (52), the roller sleeve (1) can be placed on the upper surface of the first bearing plate (5), and the rotating body (51) can rotate by taking the axis of the first rotating part (52) as the center so as to drive the roller sleeve (1) to rotate through the first bearing plate (5).

3. The roller shell replacing tool according to claim 2, characterized in that:

also comprises a set screw (57);

and a positioning screw hole (58) matched with the positioning screw (57) is formed in the side wall of the second mounting hole (56), and the positioning screw (57) is screwed in the positioning screw hole (58) and can be abutted against the second rotating part (53).

4. The roller shell replacing tool according to claim 3, characterized in that:

the number of the positioning screw holes (58) is at least two, the positioning screw holes (58) are uniformly distributed along the circumferential direction of the second mounting hole (56), and the number of the positioning screws (57) is equal to that of the positioning screw holes (58) and corresponds to that of the positioning screw holes (58).

5. The roller shell replacing tool according to claim 2, characterized in that:

the device also comprises a first rail (61) and a second bearing plate (6);

first track (61) horizontal extension to fixed connection is in on the upper surface of first bearing board (5), second bearing board (6) horizontal mode, roller shell (1) can be placed on the upper surface of second bearing board (6) be provided with first driving pulley (62) on the lower surface of second bearing board (6), make second bearing board (6) can drive roller shell (1) pass through first driving pulley (62) are followed first track (61) motion.

6. The roller shell replacing tool according to claim 5, characterized in that:

the device also comprises a second track (64) and a third bearing plate (63);

the second rail (64) extends along the horizontal direction, the extending direction of the second rail is perpendicular to the extending direction of the first rail (61), the second rail (64) is fixedly connected to the upper surface of the second bearing plate (6), the third bearing plate (63) is horizontally placed, the roller sleeve (1) can be placed on the upper surface of the third bearing plate (63), and second travelling wheels (65) are arranged on the lower surface of the third bearing plate (63), so that the third bearing plate (63) can drive the roller sleeve (1) to move along the second rail (64) through the second travelling wheels (65).

7. The roller shell replacing tool according to claim 6, characterized in that:

a bearing part (7) is arranged on the upper surface of the third bearing plate (63);

the bearing component (7) comprises an upright post (71) and a bearing shaft (72), the upright post (71) is vertically arranged, the lower end of the upright post is fixedly connected to the upper surface of the third bearing plate (63), the bearing shaft (72) is cylindrical, the diameter of the bearing shaft is smaller than the inner diameter of the roller sleeve (1), the axis of the bearing shaft (72) is horizontal, one end of the bearing shaft is fixedly connected with the top end of the upright post (71), the other end of the bearing shaft is in a free state, and the roller sleeve (1) can be sleeved on the bearing shaft (72) through the end, in the free state, of the bearing shaft (72).

8. The roller shell replacing tool according to any one of claims 1 to 7, characterized in that:

the frame body (3) comprises a cross beam (32) and supporting legs (33);

crossbeam (32) level sets up, landing leg (33) vertical setting, the quantity of landing leg (33) is two, two the top of landing leg (33) fixed connection respectively in crossbeam (32) extending direction's both ends make crossbeam (32) and two landing leg (33) form the door-shaped, lifting means (31) fixed mounting is in on crossbeam (32), two the bottom of landing leg (33) all is provided with universal wheel (34).

9. The roller shell replacing tool according to claim 8, characterized in that:

the device also comprises a connecting part (8) and a limiting part (9);

the connecting part (8) is fixedly connected with the tray (4), the lifting equipment (31) is in transmission connection with the connecting part (8), so that the lifting equipment (31) can drive the connecting part (8) to drive the tray (4) to reciprocate along the vertical direction, and a first limiting groove (81) is formed in the connecting part (8);

the limiting component (9) is fixedly connected with the tray (4), a second limiting groove (91) corresponding to the first limiting groove (81) is formed in the limiting component (9), and the first limiting groove (81) and the second limiting groove (91) jointly form a limiting hole;

the support body (3) is provided with a guide rod (35) fixedly connected with the cross beam (32), the guide rod (35) is vertically arranged and penetrates through the limiting hole, so that the tray (4) can move in a reciprocating manner in the vertical direction along the guide rod (35).

10. The roller shell replacing tool according to claim 9, characterized in that:

the number of the lifting devices (31) is two, and the two lifting devices (31) are arranged at intervals along the extending direction of the cross beam (32);

and/or the number of the guide rods (35) is two, and the two guide rods (35) are arranged at intervals along the extending direction of the cross beam (32).