阅读说明：本技术 一种地铁车辆车门螺母副滚动销拆装装置 (Dismounting device for rolling pin of nut pair of subway vehicle door ) 是由 马仁杰 李亚 刘立 于 2020-11-13 设计创作，主要内容包括：本发明公开了一种地铁车辆车门螺母副滚动销拆装装置,属于地铁列车车门系统领域,包括工作台,所述工作台的底部对称固定连接有支腿,所述工作台固定连接有转动结构,所述转动结构包括第一转盘、第一轴承、第二轴承、齿块、圆环、齿圈、第一安装板和第一驱动电机,所述第二轴承固定安装在工作台的直孔内,所述第二轴承的内环顶部固定连接有第一转盘,所述第一转盘的内底部固定连接有圆环,所述圆环的底面沿着圆周方向均匀固定连接有齿块,所述第一安装板的横向部位通过螺栓固定安装有第二轴承,本发明实现对滚动销进行转动拆分,利于进行连续拆分,无需通过调整滚动销方位,降低了拆卸难度,提升拆卸效率。(The invention discloses a dismounting device for a rolling pin of a nut pair of a subway vehicle door, which belongs to the field of subway train door systems and comprises a workbench, wherein the bottom of the workbench is symmetrically and fixedly connected with supporting legs, the workbench is fixedly connected with a rotating structure, the rotating structure comprises a first rotating disc, a first bearing, a second bearing, a tooth block, a circular ring, a gear ring, a first mounting plate and a first driving motor, the second bearing is fixedly arranged in a straight hole of the workbench, the top of an inner ring of the second bearing is fixedly connected with the first rotating disc, the inner bottom of the first rotating disc is fixedly connected with the circular ring, the bottom surface of the circular ring is uniformly and fixedly connected with the tooth block along the circumferential direction, and the transverse part of the first mounting plate is fixedly provided with the second bearing through a bolt. The disassembly difficulty is reduced, and the disassembly efficiency is improved.)

1. The utility model provides a subway vehicle door nut is vice to roll round pin dismouting device, includes workstation (1), its characterized in that: the bottom of the workbench (1) is symmetrically and fixedly connected with supporting legs (2), the workbench (1) is fixedly connected with a rotating structure (4), the rotating structure (4) comprises a first turntable (41), a first bearing (42), a second bearing (43), a tooth block (44), a ring (45), a gear ring (46), a first mounting plate (47) and a first driving motor (48), the second bearing (43) is fixedly installed in a straight hole of the workbench (1), the inner ring top of the second bearing (43) is fixedly connected with the first turntable (41), the inner bottom of the first turntable (41) is fixedly connected with the ring (45), the bottom surface of the ring (45) is uniformly and fixedly connected with the tooth block (44) along the circumferential direction, the transverse position of the first mounting plate (47) is fixedly connected with the second bearing (43) through a bolt, and the output end of the second bearing (43) is fixedly connected with the gear ring (46), ring gear (46) and tooth piece (44) meshing connection, the first bearing (42) of top fixedly connected with of first carousel (41), first bearing (42) are connected with clamping mechanism (5), workstation (1) is equipped with split structure (6) at the right-hand member of rotating-structure (4).

2. The dismounting device for the auxiliary rolling pin of the door nut of the metro vehicle as claimed in claim 1, wherein a rubber pad (3) is fixedly connected to the bottom of the supporting leg (2).

3. The dismounting device for the rolling pin of the metro vehicle door nut pair according to claim 1, is characterized in that the outer ring of the second bearing (43) is fixedly connected with the inner wall of a straight hole of the workbench (1).

4. A dismounting device for a rolling pin of a metro vehicle door nut pair according to claim 3, wherein the top of the first mounting plate (47) is fixedly connected with the inner top of the workbench (1) through a bolt.

5. The dismounting device for the auxiliary rolling pin of the door nut of the metro vehicle as claimed in claim 1, wherein the clamping mechanism (5) comprises a third bearing (51), a second rotating shaft (52), a rubber roller (53), a groove (54), a first rotating shaft (55), a first rotating plate (56), a fourth bearing (57), an arc-shaped groove (58), a rotating ring (59), a second mounting plate (510), a round bar (511), a second rotating plate (512), a second driving motor (513) and a connecting block (514), the second driving motor (513) is fixedly mounted at the transverse position of the second mounting plate (510), the second rotating plate (512) is fixedly connected to the top of the output end of the second driving motor (513), the round bar (511) is fixedly connected to the top of the outer end of the second rotating plate (512), and the round bar (511) moves in the arc-shaped groove (58), the utility model discloses a rubber roller, including round bar (511), top fixedly connected with connecting block (514), connecting block (514) fixedly connected with rotates ring (59), the top of rotating ring (59) is along the even fixedly connected with third bearing (51) of circumferencial direction, third bearing (51) are rotated and are connected with first axis of rotation (55), the first axis of rotation of first axis of rotation (55) fixedly connected with (56), recess (54) are seted up to the inner end of first axis of rotation (56), the bearing rotation of inner wall through connecting about recess (54) is connected with rubber roller (53), the outer end fixedly connected with second axis of rotation (52) of first axis of rotation (56), the bottom fixedly connected with fourth bearing (57) of second axis of rotation (52).

6. A dismounting device for a rolling pin of a door nut pair of a metro vehicle according to claim 5, wherein the bottom of the inner ring of the first bearing (42) is fixedly connected with the top of the first rotating disc (41), and the top of the outer ring of the first bearing (42) is fixedly connected with the inner top of the rotating ring (59).

7. A dismounting device for a rolling pin of a metro vehicle door nut pair as claimed in claim 6, wherein the arc-shaped groove (58) is formed at the outer end of the first turntable (41), and the outer wall of the round rod (511) is in fit sliding connection with the inner wall of the arc-shaped groove (58).

8. The dismounting device for the rolling pin of the metro vehicle door nut pair according to claim 7, wherein the bottom of the outer ring of the fourth bearing (57) is fixedly connected with the top of the first rotating disc (41), and at least 4 groups of the fourth bearing (57) are provided.

Technical Field

The invention relates to the field of subway train door systems, in particular to a dismounting device for a rolling pin of a subway train door nut pair.

Background

The rolling pin of the nut pair of the metro vehicle door is a part used at the metro vehicle door, the rolling pin consists of an upper bearing and a lower bearing, the 2 bearings are tightly connected, the rolling pin of the nut pair is a part directly matched with a screw rod, and the pin shaft strength of the rolling pin is lower than that of the screw rod, so that abrasion is easy to occur. The number of the doors of the subway train is large, taking A-type train as an example, the number of 120 door leaves of the train is 240 rolling pins, and when replacing a worn rolling pin shaft, the upper and lower bearings, the snap spring and other parts of the rolling pin need to be disassembled.

Dismantle installation device, the roll round pin that has unable to be different diameters fixes a position fixedly, and the roll round pin that can't be different to the upper and lower bearing width is stably dismantled, simultaneously, can only dismantle in single position during the dismantlement, need through the inconvenient could dismantle of adjusting position roll round pin, increased the dismantlement degree of difficulty, reduce and dismantle efficiency.

Based on the above, the invention designs a dismounting device for the rolling pin of the nut pair of the metro vehicle door to solve the problems.

Disclosure of Invention

Solves the technical problem

Aiming at the defects in the prior art, the invention provides a dismounting device for a rolling pin of a nut pair of a metro vehicle door.

Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a subway vehicle door nut pair rolling round pin dismouting device, includes the workstation, the bottom symmetry fixedly connected with landing leg of workstation, workstation fixedly connected with rotating-structure, rotating-structure includes first carousel, first bearing, second bearing, tooth piece, ring gear, first mounting panel and first driving motor, second bearing fixed mounting is in the straight hole of workstation, the inner ring top fixedly connected with first carousel of second bearing, the inner bottom fixedly connected with ring of first carousel, the bottom surface of ring is along the even fixedly connected with tooth piece of circumferencial direction, the horizontal position of first mounting panel has the second bearing through bolt fixed mounting, the output fixedly connected with ring gear of second bearing, ring gear and tooth piece meshing are connected, the top fixedly connected with first bearing of first carousel, the first bearing is connected with a clamping mechanism, and the right end of the workbench in the rotating structure is provided with a splitting structure.

Furthermore, a rubber pad is fixedly connected to the bottom of each supporting leg.

Furthermore, the outer ring of the second bearing is fixedly connected with the inner wall of the straight hole of the workbench.

Furthermore, the top of the first mounting plate is fixedly connected with the inner top of the workbench through bolts.

Furthermore, the clamping mechanism comprises a third bearing, a second rotating shaft, a rubber roller, a groove, a first rotating shaft, a first rotating plate, a fourth bearing, an arc-shaped groove, a rotating ring, a second mounting plate, a round bar, a second rotating plate, a second driving motor and a connecting block, wherein the second driving motor is fixedly mounted at the transverse position of the second mounting plate, the second rotating plate is fixedly connected to the top of the output end of the second driving motor, the round bar is fixedly connected to the top of the outer end of the second rotating plate and moves in the arc-shaped groove, the connecting block is fixedly connected to the top of the round bar, the rotating ring is fixedly connected to the connecting block, a third bearing is uniformly and fixedly connected to the top of the rotating ring along the circumferential direction, the third bearing is rotatably connected to the first rotating shaft, the first rotating shaft is fixedly connected to the first rotating plate, the groove is formed in the inner end of the first rotating plate, the upper inner wall and the lower inner wall of the groove are rotatably connected with a rubber roller through connected bearings, the outer end of the first rotating plate is fixedly connected with a second rotating shaft, and the bottom of the second rotating shaft is fixedly connected with a fourth bearing.

Furthermore, the bottom of the inner ring of the first bearing is fixedly connected with the top of the first rotating disc, and the top of the outer ring of the first bearing is fixedly connected with the inner top of the rotating circular ring.

Furthermore, the arc-shaped groove is arranged at the outer end of the first rotating disc, and the outer wall of the round rod is attached to the inner wall of the arc-shaped groove in a sliding mode.

Furthermore, the bottom of the outer ring of the fourth bearing is fixedly connected with the top of the first rotating disc, and the fourth bearing is provided with at least 4 groups.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:

according to the invention, the second driving motor of the clamping mechanism drives the second rotating plate to rotate, the second rotating plate drives the round rod to rotate in the arc-shaped groove, the arc-shaped groove pushes the connecting block to rotate along the first bearing, the connecting block drives the rotating ring to rotate along the first bearing, the arc-shaped groove drives the first rotating shaft to rotate, the first rotating shaft, the third bearing, the second rotating shaft and the fourth bearing are matched to drive the inner end of the first rotating plate to rotate, the first rotating plate drives the rubber rollers to mutually approach to position and fix the rolling pins, the fixing positions of the rubber rollers are conveniently matched and adjusted according to the outer sizes of the rolling pins, and the positioning and fixing of the rolling pins with different diameters are realized.

According to the device, the first air cylinder with the splitting structure drives the mounting sliding sleeve to move, the mounting sliding sleeve drives the L-shaped sliding plate to drive the splitting plate to move to adjust the height, the splitting plate is convenient to adjust to the connecting position of the upper bearing and the lower bearing, the device is suitable for stably detaching rolling pins with different widths of the upper bearing and the lower bearing, meanwhile, the L-shaped sliding plate slides in the mounting sliding sleeve, the mounting sliding sleeve plays a role in supporting the L-shaped sliding plate, the vertical pressure of the splitting plate on the L-shaped sliding plate during splitting is reduced, and the service life of the L-shaped.

According to the invention, the gear ring is driven to rotate by the first driving motor of the rotating structure, the gear ring drives the circular ring to rotate through the gear block, the circular ring drives the first rotating disc to rotate along the second bearing, the first rotating disc drives the rolling pin fixed by the clamping mechanism to rotate, different parts of the rolling pin can be conveniently rotated to the splitting structure to be split, the rolling pin can be rotatably split, the continuous splitting is favorably carried out, the direction of the rolling pin does not need to be adjusted, the disassembling difficulty is reduced, and the disassembling efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

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

FIG. 2 is a left side plan view of the structure of the present invention;

FIG. 3 is a bottom right view of the structure of the present invention;

FIG. 4 is a rear plan view of the structure of the present invention;

FIG. 5 is a cross-sectional view of the structure of the present invention;

FIG. 6 is a schematic view of the split structure of the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

the reference numerals in the drawings denote: 1. the working table 2, the supporting legs 3, the rubber pads 4, the rotating structures 41, the first rotating disc 42, the first bearing 43, the second bearing 44, the gear block 45, the circular ring 46, the gear ring 47, the first mounting plate 48, the first driving motor 5, the clamping mechanism 51, the third bearing 52, the second rotating shaft 53, the rubber roller 54, the groove 55, the first rotating shaft 56, the first rotating plate 57, the fourth bearing 58, the arc-shaped groove 59, the rotating circular ring 510, the second mounting plate 511, the circular rod 512, the second rotating plate 513, the second driving motor 514, the connecting block 6, the splitting structure 61, the mounting frame 62, the first air cylinder 63. L-shaped sliding plate 64, the second air cylinder 65, the splitting plate 66, the mounting sleeve 68 and the connecting frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Example 1

As shown in fig. 1, 3, 4, 5, a dismounting device for a rolling pin of a subway vehicle door nut pair comprises a workbench 1, wherein the bottom of the workbench 1 is symmetrically and fixedly connected with supporting legs 2, the bottom of the supporting legs 2 is fixedly connected with a rubber pad 3, the workbench 1 is fixedly connected with a rotating structure 4, the rotating structure 4 comprises a first rotating disc 41, a first bearing 42, a second bearing 43, a tooth block 44, a circular ring 45, a gear ring 46, a first mounting plate 47 and a first driving motor 48, the second bearing 43 is fixedly arranged in a straight hole of the workbench 1, the outer ring of the second bearing 43 is fixedly connected with the inner wall of the straight hole of the workbench 1, the top of the inner ring of the second bearing 43 is fixedly connected with the first rotating disc 41, the inner bottom of the first rotating disc 41 is fixedly connected with the circular ring 45, the bottom surface of the circular ring 45 is uniformly and fixedly connected with the tooth block 44 along the circumferential direction, the top of the first mounting plate 47 is fixedly connected with, the transverse part of the first mounting plate 47 is fixedly provided with a second bearing 43 through a bolt, the output end of the second bearing 43 is fixedly connected with a gear ring 46, the gear ring 46 is meshed with a gear block 44, the top of the first rotating disc 41 is fixedly connected with a first bearing 42, the first bearing 42 is connected with a clamping mechanism 5, the right end of the rotating structure 4 of the workbench 1 is provided with a splitting structure 6, the gear ring 46 is driven to rotate by a first driving motor 48 of the rotating structure 4, the gear ring 46 drives a circular ring 45 to rotate by the gear block 44, the circular ring 45 drives the first rotating disc 41 to rotate along the second bearing 43, the first rotating disc 41 drives a rolling pin fixed by the clamping mechanism 5 to rotate, different parts of the rolling pin can be conveniently rotated to the splitting structure 6 for splitting, the rolling pin can be rotationally split, the rolling pin can be conveniently and continuously split, the direction of the rolling pin does not need, the disassembly efficiency is improved.

Example 2

Example 2 is a further modification to example 1.

As shown in fig. 1, 2, 3, 4, 5, 7, a dismounting device for a rolling pin of a subway vehicle door nut pair comprises a workbench 1, supporting legs 2 are symmetrically and fixedly connected to the bottom of the workbench 1, rubber pads 3 are fixedly connected to the bottoms of the supporting legs 2, a rotating structure 4 is fixedly connected to the workbench 1, the rotating structure 4 comprises a first turntable 41, a first bearing 42, a second bearing 43, a tooth block 44, a circular ring 45, a gear ring 46, a first mounting plate 47 and a first driving motor 48, the second bearing 43 is fixedly installed in a straight hole of the workbench 1, the outer ring of the second bearing 43 is fixedly connected to the inner wall of the straight hole of the workbench 1, the top of the inner ring of the second bearing 43 is fixedly connected to the first turntable 41, the inner bottom of the first turntable 41 is fixedly connected to the circular ring 45, the bottom surface of the circular ring 45 is uniformly and fixedly connected to the tooth block 44 along the circumferential direction, the top of the first mounting plate 47 is fixedly connected to the inner top of the workbench, a second bearing 43 is fixedly arranged on the transverse part of the first mounting plate 47 through a bolt, the output end of the second bearing 43 is fixedly connected with a gear ring 46, the gear ring 46 is meshed with a gear block 44, the top part of the first rotating disc 41 is fixedly connected with a first bearing 42, the first bearing 42 is connected with a clamping mechanism 5, the clamping mechanism 5 comprises a third bearing 51, a second rotating shaft 52, a rubber roller 53, a groove 54, a first rotating shaft 55, a first rotating plate 56, a fourth bearing 57, an arc-shaped groove 58, a rotating ring 59, a second mounting plate 510, a round rod 511, a second rotating plate 512, a second driving motor 513 and a connecting block 514, a second driving motor 513 is fixedly arranged on the transverse part of the second mounting plate 510, the top part of the output end of the second driving motor 513 is fixedly connected with the second rotating plate 512, the top part of the outer end of the second rotating plate 512 is fixedly connected with the round rod 511, and the round rod 511, the top of the round rod 511 is fixedly connected with a connecting block 514, the connecting block 514 is fixedly connected with a rotating ring 59, the top of the rotating ring 59 is uniformly and fixedly connected with a third bearing 51 along the circumferential direction, the third bearing 51 is rotatably connected with a first rotating shaft 55, the first rotating shaft 55 is fixedly connected with a first rotating plate 56, the inner end of the first rotating plate 56 is provided with a groove 54, the upper inner wall and the lower inner wall of the groove 54 are rotatably connected with a rubber roller 53 through connected bearings, the outer end of the first rotating plate 56 is fixedly connected with a second rotating shaft 52, the bottom of the second rotating shaft 52 is fixedly connected with a fourth bearing 57, the bottom of the inner ring of the first bearing 42 is fixedly connected with the top of the first rotating plate 41, the top of the outer ring of the first bearing 42 is fixedly connected with the inner top of the rotating ring 59, an arc-shaped groove 58 is arranged at the outer end of the first rotating plate, the bottom of the outer ring of the fourth bearing 57 is fixedly connected with the top of the first rotating disc 41, at least 4 groups of the fourth bearing 57 are arranged, a splitting structure 6 is arranged at the right end of the rotating structure 4 of the workbench 1, the second driving motor 513 of the clamping mechanism 5 drives the second rotating plate 512 to rotate, the second rotating plate 512 drives the round rod 511 to rotate in the arc-shaped groove 58, the arc-shaped groove 58 pushes the connecting block 514 to rotate along the first bearing 42, the connecting block 514 drives the rotating ring 59 to rotate along the first bearing 42, the arc-shaped groove 58 drives the first rotating shaft 55 to rotate, the first rotating shaft 55, the third bearing 51, the second rotating shaft 52 and the fourth bearing 57 are matched to drive the inner end of the first rotating plate 56 to rotate, the first rotating plate 56 drives the rubber roller 53 to mutually approach to position and fix the rolling pins, the fixed position of the rubber roller 53 is conveniently matched and adjusted according to the outer sizes of the rolling pins, and the rolling pins with different diameters are positioned and fixed.

Example 3

Example 3 is a further modification to example 2.

As shown in fig. 1, 2, 5 and 6, the dismounting device for the rolling pin of the nut pair of the metro vehicle door comprises a workbench 1, wherein the bottom of the workbench 1 is symmetrically and fixedly connected with supporting legs 2, the bottom of the supporting legs 2 is fixedly connected with a rubber pad 3, the workbench 1 is fixedly connected with a rotating structure 4, the rotating structure 4 comprises a first rotating disc 41, a first bearing 42, a second bearing 43, a tooth block 44, a circular ring 45, a gear ring 46, a first mounting plate 47 and a first driving motor 48, the second bearing 43 is fixedly arranged in a straight hole of the workbench 1, the outer ring of the second bearing 43 is fixedly connected with the inner wall of the straight hole of the workbench 1, the top of the inner ring of the second bearing 43 is fixedly connected with the first rotating disc 41, the inner bottom of the first rotating disc 41 is fixedly connected with the circular ring 45, the bottom surface of the circular ring 45 is uniformly and fixedly connected with the tooth block 44 along the circumferential direction, the top of the first mounting plate 47 is fixedly connected, a second bearing 43 is fixedly arranged on the transverse part of the first mounting plate 47 through a bolt, the output end of the second bearing 43 is fixedly connected with a gear ring 46, the gear ring 46 is meshed with a gear block 44, the top part of the first rotating disc 41 is fixedly connected with a first bearing 42, the first bearing 42 is connected with a clamping mechanism 5, the clamping mechanism 5 comprises a third bearing 51, a second rotating shaft 52, a rubber roller 53, a groove 54, a first rotating shaft 55, a first rotating plate 56, a fourth bearing 57, an arc-shaped groove 58, a rotating ring 59, a second mounting plate 510, a round rod 511, a second rotating plate 512, a second driving motor 513 and a connecting block 514, a second driving motor 513 is fixedly arranged on the transverse part of the second mounting plate 510, the top part of the output end of the second driving motor 513 is fixedly connected with the second rotating plate 512, the top part of the outer end of the second rotating plate 512 is fixedly connected with the round rod 511, and the round rod 511, the top of the round rod 511 is fixedly connected with a connecting block 514, the connecting block 514 is fixedly connected with a rotating ring 59, the top of the rotating ring 59 is uniformly and fixedly connected with a third bearing 51 along the circumferential direction, the third bearing 51 is rotatably connected with a first rotating shaft 55, the first rotating shaft 55 is fixedly connected with a first rotating plate 56, the inner end of the first rotating plate 56 is provided with a groove 54, the upper inner wall and the lower inner wall of the groove 54 are rotatably connected with a rubber roller 53 through connected bearings, the outer end of the first rotating plate 56 is fixedly connected with a second rotating shaft 52, the bottom of the second rotating shaft 52 is fixedly connected with a fourth bearing 57, the bottom of the inner ring of the first bearing 42 is fixedly connected with the top of the first rotating plate 41, the top of the outer ring of the first bearing 42 is fixedly connected with the inner top of the rotating ring 59, an arc-shaped groove 58 is arranged at the outer end of the first rotating plate, the bottom of the outer ring of the fourth bearing 57 is fixedly connected with the top of the first rotating disc 41, at least 4 groups of the fourth bearing 57 are arranged, the workbench 1 is provided with a splitting structure 6 at the right end of the rotating structure 4, the splitting structure 6 comprises an installation frame 61, a first air cylinder 62, an L-shaped sliding plate 63, a second air cylinder 64, a splitting plate 65, an installation sleeve 66, an installation sliding sleeve 67 and a connecting frame 68, the installation frame 61 is fixedly installed on the workbench 1, the installation frame 61 is fixedly connected with the first air cylinder 62, the top of the telescopic end of the first air cylinder 62 is fixedly connected with the installation sliding sleeve 67, the installation sliding sleeve 67 is internally attached with the L-shaped sliding plate 63 in a sliding manner, the top of the L-shaped sliding plate 63 is fixedly connected with the installation sleeve 66, the installation sleeve 66 is fixedly connected with the splitting plate 65 through bolts, the top of the installation sliding sleeve 67 is fixedly connected with the connecting frame 68, the connecting frame 68 is fixedly installed with the second air cylinder 64, the first cylinder 62 of split structure 6 drives installation sliding sleeve 67 and removes, installation sliding sleeve 67 drives L shape slide 63 and drives split board 65 and remove and carry out height-adjusting, make things convenient for split board 65 to adjust to the upper and lower bearing connection position department, make the device be fit for the different roll pin of upper and lower bearing width and stabilize the dismantlement, and simultaneously, L shape slide 63 slides in installation sliding sleeve 67, installation sliding sleeve 67 plays the effect that supports L shape slide 63, split board 65 is to the vertical pressure of L shape slide 63 when lightening the split, the life of extension L shape slide 63.

When the positioning device is used, rolling pins are placed on the first rotating disc 41, the second driving motor 513 of the clamping mechanism 5 is started, the second driving motor 513 drives the second rotating plate 512 to rotate, the second rotating plate 512 drives the round rod 511 to rotate in the arc-shaped groove 58, the arc-shaped groove 58 pushes the connecting block 514 to rotate along the first bearing 42, the connecting block 514 drives the rotating ring 59 to rotate along the first bearing 42, the arc-shaped groove 58 drives the first rotating shaft 55 to rotate, the first rotating shaft 55, the third bearing 51, the second rotating shaft 52 and the fourth bearing 57 are matched to drive the inner end of the first rotating plate 56 to rotate, the first rotating plate 56 drives the rubber roller 53 to mutually approach to position and fix the rolling pins, the fixing position of the rubber roller 53 is conveniently adjusted according to the outer size of the rolling pins, and the positioning and fixing of the rolling pins with different diameters are realized; the first cylinder 62 of the splitting structure 6 is started, the first cylinder 62 drives the mounting sliding sleeve 67 to move, the mounting sliding sleeve 67 drives the L-shaped sliding plate 63 to drive the splitting plate 65 to move for adjusting the height, the splitting plate 65 can be conveniently adjusted to the connecting position of the upper bearing and the lower bearing, the device is suitable for stably disassembling the rolling pins with different widths of the upper bearing and the lower bearing, and when the disassembling plate 65 is disassembled, rotating-structure 4's first driving motor 48 drive ring gear 46 rotates, ring gear 46 passes through tooth piece 44 drive ring 45 and rotates, ring 45 drives and drives first carousel 41 and rotate along second bearing 43, first carousel 41 drives the roll round pin of clamping mechanism 5 fixed and rotates, conveniently rotate the different positions of roll round pin to split structure 6 and carry out the split, the realization rotates the split to the roll round pin, do benefit to and carry out continuous split, need not through adjustment roll round pin position, the dismantlement degree of difficulty has been reduced, the efficiency of dismantlement is promoted.

The L-shaped sliding plate 63 slides in the mounting sliding sleeve 67, the mounting sliding sleeve 67 plays a role in supporting the L-shaped sliding plate 63, the vertical pressure of the splitting plate 65 on the L-shaped sliding plate 63 during splitting is reduced, and the service life of the L-shaped sliding plate 63 is prolonged.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.