CN116902638B

CN116902638B - Pneumatic safety chuck

Info

Publication number: CN116902638B
Application number: CN202311167496.7A
Authority: CN
Inventors: 夏侯强; 成昊沅; 于子仟
Original assignee: Whale Smart Logistics Lianyungang Co ltd
Current assignee: Whale Smart Logistics Lianyungang Co ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2023-12-01
Anticipated expiration: 2043-09-12
Also published as: CN116902638A

Abstract

The application relates to the technical field of supporting coil stock equipment, and particularly discloses a pneumatic safety chuck which comprises a support I and a scroll, wherein a support ring is fixedly sleeved on one side of the support I through a bearing, the inside of one side of the support ring, which is far away from the support I, is designed as a conical surface, a linkage disc is arranged on one side of the support ring, which is far away from the support I, two arc-shaped linkage blocks which are vertically and symmetrically distributed are arranged on one side of the linkage disc, which faces the support ring, the outer edges of the two arc-shaped linkage blocks are provided with conical surfaces which are matched with the support ring, and a chuck is fixedly connected on one side of the linkage disc, which is far away from the arc-shaped linkage blocks. Through the conical surface contact design of arc linkage piece and supporting ring for the spool is when the rolling load-bearing, and by radial stress bearing and the axial stress bearing between supporting ring and the support I sharing the continuous increase of weight during the spool rolling simultaneously, compared with current pneumatic safety chuck, improved the life of bearing.

Description

Pneumatic safety chuck

Technical Field

The application relates to the technical field of supporting coil stock equipment, in particular to a pneumatic safety chuck.

Background

The safety chuck is also called a safety chuck, is used for supporting a material roll and transmitting torque, is installed and fixed on a reel, is commonly used for winding a strip material on the reel, is generally installed on a unwinding or winding station and is used for supporting the reel, the pneumatic safety chuck is the most commonly used type, the reel is fixed at two ends of the reel by horizontally pushing and sliding the disc in a gas injection pressurizing mode, and the reel can be taken out after the reel is wound.

However, when the existing pneumatic safety chuck is used, the weight is continuously increased when the reel is wound, and the existing pneumatic safety chuck independently bears the gravity which is continuously increased during the winding of the reel by a single radial stress bearing, so that the bearing is worn and consumed by stress to cause the problems of high working noise and deviation of the reel coil stock, and the pneumatic safety chuck is provided for solving the technical problems.

Disclosure of Invention

The application provides a pneumatic safety chuck, which has the advantages that radial pressure is converted into radial pressure and axial pressure when a scroll bears the weight, the radial pressure and the axial pressure are shared by two groups of bearings, and the abrasion consumption of the bearings in a single direction is reduced.

In order to achieve the above purpose, the application adopts the following technical scheme: the utility model provides a pneumatic safety chuck, includes support I and spool, support I's one side is equipped with the supporting ring through the fixed cover of bearing, the supporting ring is the conical surface design that is away from the inside of support I one side, one side that support I was kept away from to the supporting ring is equipped with the interlock dish, the relative supporting ring horizontal migration of interlock dish, one side that the interlock dish was oriented to the supporting ring is equipped with two arc linkage pieces of upper and lower symmetric distribution, the outward flange of two arc linkage pieces is equipped with the conical surface with the supporting ring looks adaptation, one side fixedly connected with chuck that arc linkage piece was kept away from to the interlock dish, one side that the chuck was kept away from to the interlock dish cup joints with the one end activity of spool, support I is kept away from the opposite side of supporting ring and is equipped with the cylinder, the inside of cylinder is equipped with the piston, one side fixedly connected with thrust unit of piston, thrust unit promotes two arc linkage pieces longitudinal separation and removes.

Further, the number of bearings between the support I and the support ring is two, one of the bearings is a radial stress bearing, the radial stress bearing is arranged between the inner arc wall of the circular groove of the support I and the outer arc wall of the support ring, the other bearing is an axial stress bearing, and the axial stress bearing is arranged between the inner side wall of the circular groove of the support I and the side wall of the support ring.

Further, one side of the support I is provided with a support II, an inner arc wall of the support II is sleeved with a limit sleeve through a radial bearing, the axis of the limit sleeve and the axis of the support ring are positioned on the same straight line, and an outer arc wall of the chuck is movably connected with an inner arc wall of the limit sleeve.

Further, two groups of sliding grooves are formed in one side, far away from the chuck, of the linkage disc, the number of one group of sliding grooves is two, the two sliding grooves in each group are symmetrically distributed on the linkage disc, the arc-shaped linkage block is fixedly connected with a sliding block towards one side of the linkage disc, the sliding block is movably sleeved with the sliding grooves, and a limiting device for limiting the sliding block is arranged in the sliding grooves.

Further, stop device includes the L template of fixed mounting in chuck side, be equipped with spacing axle between the tank bottom of L template and spout, spacing axle and slider activity cup joint, be equipped with the spring of movable suit in the spacing axle outside between slider and the L template.

Further, the inner edge of one side of the arc-shaped linkage block far away from the linkage disc is designed as a conical surface.

Further, thrust unit includes the axle that pushes away with piston fixed connection, the one end that pushes away the axle extends to the clearance department of two arc linkage pieces and fixed cover is equipped with the universal driving shaft, the fixed cover of one end that pushes away the axle is kept away from to the universal driving shaft is equipped with the locating sleeve, one side that the universal driving shaft was kept away from to the locating sleeve is the conical surface design, movable cover is equipped with limit stop on the universal driving shaft, limit stop is kept away from one side that the locating sleeve is connected with the baffle through plane bearing, the baffle is located between limit stop and the axle that pushes away.

Further, the outer arc wall of the support ring far away from one side of the support I is fixedly provided with a gear ring.

The application has the beneficial effects that:

1. according to the pneumatic safety chuck provided by the application, through the design that the arc-shaped linkage block is in contact with the conical surface of the supporting ring, when the reel bears load during winding, the radial stress bearing and the axial stress bearing between the supporting ring and the support I simultaneously share the gravity which is continuously increased during winding of the reel, compared with the existing pneumatic safety chuck which independently bears the gravity which is continuously increased during winding of the reel through a single radial stress bearing, the pneumatic safety chuck has the advantages that the service life of the bearing is prolonged, the abrasion consumption of the bearing is reduced, and the problems that the working noise is large and the winding material of the reel is deviated due to the abrasion consumption of the bearing when the existing pneumatic safety chuck is used are avoided.

2. Through to the cylinder in the gas injection pressurization back for between limit stop moved two arc linkage pieces, after the conical surface of two arc linkage pieces closely laminates with the conical surface of supporting ring, can remain this state throughout, even the gas leakage appears in the cylinder, also can ensure that the chuck is stable carries out spacingly in the one end of spool, prevents that the spool from droing, and the spool is rotatory along with chuck, interlock dish, arc linkage piece and supporting ring simultaneously, has avoided the spool rolling during the rolling work because of the cylinder gas leakage leads to the unstable and easy problem that drops of spool rolling.

3. Through the conical surface friction connection design of support ring and arc linkage piece, can also be when changing the spool for arc linkage piece and support ring separation need not to stop driving motor, avoid frequently opening and close the motor and lead to the unstable and life reduction's of motor operation problem, and when the spool rolling is because of so stopping rotating, the static friction connection of arc linkage piece and support ring changes movable friction, carries out effective protection to driven motor.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

The application may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of a pneumatic safety chuck according to the present application;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a schematic view of the middle cut-away structure of FIG. 1;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a right side view of the support I of FIG. 1;

FIG. 6 is a right side view of the support ring and ring gear of FIG. 1;

FIG. 7 is an exploded view of the connection of the chuck and the arcuate linkage block of FIG. 3;

FIG. 8 is a schematic diagram of the complete structure of the arcuate linkage block of FIG. 7;

FIG. 9 is a left side view of FIG. 8;

fig. 10 is a schematic view of the pushing device in fig. 3.

In the figure:

1. a support I; 2. a support ring; 3. a gear ring; 4. a support II; 5. a limit sleeve; 6. a chuck; 7. a linking disc; 8. a limiting device; 801. an L-shaped plate; 802. a limiting shaft; 803. a spring; 9. a chute; 10. an arc-shaped linkage block; 11. a reel; 12. a cylinder; 13. a piston; 14. a pushing device; 141. pushing the shaft; 142. a linkage shaft; 143. a baffle; 144. a limit stop; 145. a positioning sleeve; 15. a sliding block.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Example 1

Referring to fig. 1-5, a pneumatic safety chuck comprises a support i 1 and a support ii 4, a circular groove is formed in one side of the support i 1, a supporting ring 2 is fixedly sleeved in the circular groove through a bearing, referring to fig. 3-4, two bearings are arranged between the support i 1 and the supporting ring 2, one bearing is a radial stress bearing, the radial stress bearing is arranged between an inner arc wall of the circular groove of the support i 1 and an outer arc wall of the supporting ring 2, the other bearing is an axial stress bearing, the axial stress bearing is arranged between an inner side wall of the circular groove of the support i 1 and a side wall of the supporting ring 2, referring to fig. 3, 4 and 6, the inner part of one side of the supporting ring 2 away from the support i 1 is designed as a conical surface, a gear ring 3 is fixedly arranged on the outer arc wall of one side of the supporting ring 2 away from the support i 1, and the gear ring 3 is driven to rotate by a motor driving gear.

With continued reference to fig. 1-4, the support ii 4 is located at one side of the support i 1, the inner arc wall of the support ii 4 is sleeved with a limit sleeve 5 through a radial bearing, the axis of the limit sleeve 5 and the axis of the support ring 2 are located on the same straight line, the inner arc wall of the limit sleeve 5 is movably sleeved with a horizontally moving chuck 6, the middle part of one side of the chuck 6, facing the support ring 2, is fixedly connected with a linkage disc 7, with reference to fig. 3 and 7, two groups of sliding grooves 9 are formed in one side, far away from the chuck 6, of the linkage disc 7, the number of the sliding grooves 9 is two, two sliding grooves 9 in each group are symmetrically distributed on the linkage disc 7, one side, far away from the chuck 6, of the linkage disc 7 is provided with arc-shaped linkage blocks 10, with two arc-shaped linkage blocks 10 being respectively arranged at the upper end and the lower end of the side of the linkage disc 7, one side, facing the linkage disc 7, of the arc-shaped block 10 is fixedly connected with a sliding block 15, the sliding block 15 is movably sleeved with the sliding groove 9, and a limit device 8 for limiting the sliding block 15 is arranged in the sliding groove 9.

The limiting device 8 comprises an L-shaped plate 801 fixedly mounted on the side face of the chuck 6, a limiting shaft 802 is arranged between the L-shaped plate 801 and the bottom of the chute 9, the limiting shaft 802 is movably sleeved with a sliding block 15, a spring 803 movably sleeved on the outer side of the limiting shaft 802 is arranged between the sliding block 15 and the L-shaped plate 801, and the sliding block 15 is limited through the limiting shaft 802, so that the arc-shaped linkage block 10 can only longitudinally move along the side face of the linkage disc 7.

The inner edge of the arc linkage block 10 far away from the linkage disc 7 side is in a conical surface design, a gap is reserved between the two arc linkage blocks 10, the outer edge of the arc linkage block 10 far away from the linkage disc 7 side is in a conical surface design, as shown in fig. 3 and 4, the outer edge conical surface of the arc linkage block 10 far away from the linkage disc 7 side is matched with the inner edge conical surface of the support ring 2 far away from the support I1 side, a reel 11 is movably sleeved in the middle of the chuck 6 far away from the linkage disc 7 side, and the chuck 6 drives the reel 11 to rotate.

With continued reference to fig. 1-4, the middle of the side of the support i 1 away from the support ring 2 is fixedly provided with a cylinder 12, both sides of the front surface of the cylinder 12 are respectively provided with an air injection port, a piston 13 is movably sleeved in the cylinder 12, the middle of the side of the piston 13 facing the support i 1 is fixedly connected with a pushing device 14, referring to fig. 3 and 10, the pushing device 14 comprises a pushing shaft 141 fixedly connected with the piston 13, one end of the pushing shaft 141 extends to a gap between two arc-shaped linkage blocks 10 and is fixedly sleeved with a linkage shaft 142, one end of the linkage shaft 142 away from the pushing shaft 141 is fixedly sleeved with a positioning sleeve 145, one side of the positioning sleeve 145 away from the linkage shaft 142 is in a conical surface design, the linkage shaft 142 is movably sleeved with a limit stop 144, one side of the limit stop 144 away from the positioning sleeve 145 is connected with a baffle 143 through a plane bearing, and the baffle 143 is positioned between the limit stop 144 and the pushing shaft 141.

Before use, the piston 13 in the cylinder 12 is located on the side away from the support I1, at this time, the limit stop 144 is located between the two arc-shaped linkage blocks 10 and the support I1, and under the action of the elastic force of the spring 803, the two arc-shaped linkage blocks 10 are contacted, so that the outer edge conical surfaces of the two arc-shaped linkage blocks 10 are separated from the inner edge conical surfaces of the support ring 2, and the chuck 6 can move towards the support I1, and then the spool 11 can be placed between the two pneumatically-safe chucks 6.

When the pneumatic clamping device is used, after two ends of the scroll 11 are placed between the two pneumatically safe chucks 6, the pneumatic clamping device further comprises the step of injecting air into the air cylinder 12 from the air injection port on one side of the support I1 to pressurize, the pneumatic pushing piston 13 and the pushing device 14 integrally move towards the arc-shaped linkage block 10 and push the arc-shaped linkage block 10, the linkage disc 7 and the chucks 6 to move towards the scroll 11, and after the two arc-shaped linkage blocks 10 cannot be translated again, the conical surfaces of the positioning sleeve 145 enable the two arc-shaped linkage blocks 10 to separate and move until the conical surfaces of the outer edges of the two arc-shaped linkage blocks 10 are attached to the inner edge conical surfaces of the support ring 2, the positioning sleeve 145 continuously translates and is kept between the two arc-shaped linkage blocks 10, so that the support ring 2 is limited and fixed on two sides of the scroll 11, the gear ring 3 is driven to rotate by the motor driving gear, and the conical surfaces of the support ring 2 are in friction contact with the conical surfaces of the arc-shaped linkage block 10, the linkage disc 7, the chucks 6 and the scroll 11 are driven to rotate.

By the design of the arc-shaped linkage block 10 and the conical surface contact of the supporting ring 2, when the reel 11 bears load during rolling, the radial stress bearing and the axial stress bearing between the supporting ring 2 and the support I1 simultaneously share the increasing gravity during rolling of the reel 11, compared with the existing pneumatic safety clamp which independently bears the increasing gravity during rolling of the reel 11 by a single radial stress bearing, the service life of the bearing is prolonged, the abrasion consumption of the bearing is reduced, the problems of high working noise and the running deviation of the reel 11 caused by the abrasion consumption of the bearing are avoided, and the limit stop 144 is moved between the two arc-shaped linkage blocks 10 after the conical surfaces of the two arc-shaped linkage blocks 10 are tightly attached to the conical surfaces of the supporting ring 2 after the air injection and pressurization are carried out in the air cylinder 12, the state can be always kept, even if the air cylinder 12 leaks air, the chuck 6 can be ensured to stably limit one end of the scroll 11, the scroll 11 is prevented from falling off, meanwhile, the scroll 11 rotates along with the chuck 6, the linkage disc 7, the arc-shaped linkage block 10 and the support ring 2, the problems that the scroll 11 is unstable to roll and easy to fall off due to air leakage of the air cylinder 12 during rolling operation of the scroll 11 are avoided, the arc-shaped linkage block 10 is separated from the support ring 2 through the design of friction connection between the conical surface of the support ring 2 and the conical surface of the arc-shaped linkage block 10 during changing the scroll 11, a driving motor is not required to be stopped, the problems that the motor is unstable to operate and the service life is reduced due to frequent opening and closing of the motor are avoided, and when the rotation is stopped due to reasons during rolling of the scroll 11, the static friction connection between the arc-shaped linkage block 10 and the support ring 2 is converted into movable friction, and the driven motor is effectively protected.

Claims

1. The pneumatic safety chuck comprises a support I (1) and a reel (11), and is characterized in that one side of the support I (1) is fixedly sleeved with a support ring (2) through a bearing, the inside of one side of the support I (1) is designed into a conical surface, one side of the support ring (2) away from the support I (1) is provided with a linkage disc (7), the linkage disc (7) moves horizontally relative to the support ring (2), one side of the linkage disc (7) facing the support ring (2) is provided with two arc-shaped linkage blocks (10) which are vertically symmetrically distributed, the outer edges of the two arc-shaped linkage blocks (10) are provided with conical surfaces matched with the support ring (2), one side of the linkage disc (7) away from the arc-shaped linkage blocks (10) is fixedly connected with a chuck (6), one side of the chuck (6) away from the linkage disc (7) is movably sleeved with one end of the reel (11), the other side of the support I (1) away from the support ring (2) is provided with a cylinder (12), the inside of the cylinder (12) is provided with a piston (13), and the two arc-shaped linkage blocks (14) are pushed by the piston (13) and the two arc-shaped linkage blocks (14) are pushed by the piston (14) to be fixedly connected with one longitudinal movement device;

the number of the bearings between the support I (1) and the support ring (2) is two, one of the bearings is a radial stress bearing, the radial stress bearing is arranged between the inner arc wall of the circular groove of the support I (1) and the outer arc wall of the support ring (2), the other bearing is an axial stress bearing, and the axial stress bearing is arranged between the inner side wall of the circular groove of the support I (1) and the side wall of the support ring (2);

one side of the support I (1) is provided with a support II (4), an inner arc wall of the support II (4) is sleeved with a limit sleeve (5) through a radial bearing, the axis of the limit sleeve (5) and the axis of the support ring (2) are positioned on the same straight line, and an outer arc wall of the chuck (6) is movably connected with the inner arc wall of the limit sleeve (5);

the inner edge of one side of the arc-shaped linkage block (10) far away from the linkage disc (7) is designed as a conical surface;

the pushing device (14) comprises a pushing shaft (141) fixedly connected with the piston (13), one end of the pushing shaft (141) extends to a gap between two arc-shaped linkage blocks (10) and is fixedly sleeved with a linkage shaft (142), one end of the linkage shaft (142) away from the pushing shaft (141) is fixedly sleeved with a positioning sleeve (145), one side of the positioning sleeve (145) away from the linkage shaft (142) is of a conical surface design, a limit stop (144) is movably sleeved on the linkage shaft (142), one side of the limit stop (144) away from the positioning sleeve (145) is connected with a baffle (143) through a plane bearing, and the baffle (143) is located between the limit stop (144) and the pushing shaft (141).

2. The pneumatic safety chuck according to claim 1, wherein two groups of sliding grooves (9) are formed in one side, far away from the chuck (6), of the linkage disc (7), the number of the sliding grooves (9) in one group is two, the two sliding grooves (9) in each group are symmetrically distributed on the linkage disc (7), a sliding block (15) is fixedly connected to one side, facing the linkage disc (7), of the arc-shaped linkage block (10), the sliding block (15) is movably sleeved with the sliding grooves (9), and a limiting device (8) for limiting the sliding block (15) is arranged in the sliding grooves (9).

3. The pneumatic safety chuck according to claim 2, wherein the limiting device (8) comprises an L-shaped plate (801) fixedly mounted on the side face of the chuck (6), a limiting shaft (802) is arranged between the L-shaped plate (801) and the bottom of the chute (9), the limiting shaft (802) is movably sleeved with a sliding block (15), and a spring (803) movably sleeved outside the limiting shaft (802) is arranged between the sliding block (15) and the L-shaped plate (801).

4. Pneumatic safety chuck according to claim 1, characterized in that the outer arc wall of the side of the support ring (2) remote from the support i (1) is fixedly provided with a gear ring (3).