CN113428562A

CN113428562A - Movable stop block for butt-joint roller bed

Info

Publication number: CN113428562A
Application number: CN202110699015.1A
Authority: CN
Inventors: 王明岩; 张淑华; 吕欢庆
Original assignee: MMI Planning and Engineering Institute IX Co Ltd
Current assignee: MMI Planning and Engineering Institute IX Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-09-24

Abstract

The invention discloses a movable stop block for a butt-joint roller bed, which comprises a bottom plate, wherein a first through hole is arranged at the middle position of the bottom plate, a rotating shaft is fixedly connected in the first through hole, a nylon sleeve is sleeved at one end of the rotating shaft, a rotating shaft outer sleeve is sleeved at the outer side of the nylon sleeve, a swing block is arranged at the outer side of the rotating shaft outer sleeve and fixedly connected on the rotating shaft outer sleeve, an adjusting roller mechanism is arranged on the swing block, an arc-shaped long hole groove is arranged on the swing block, an in-situ stop block and a torsion stop block are respectively arranged in the arc-shaped long hole groove, and a torsion spring is sleeved on the rotating shaft outer sleeve. The installation is flexible.

Description

Movable stop block for butt-joint roller bed

Technical Field

The invention relates to the technical field of skid conveying, in particular to a movable stop block for a butt-joint roller bed.

Background

A roller bed is a skid conveying device and is widely applied to an automobile production line, when the running track of a skid needs to be changed, a shifting machine conveys the skid from one line to the other line, the shifting roller bed is in butt joint with a fixed roller bed of the other line and is separated from an original butt joint roller bed, and a corresponding gap is generated at the original butt joint position. When the skid moves on the roller bed, a corresponding electric element is arranged to detect the position of the skid to control the speed reduction and stop of the conveying equipment, and when the electric element fails or the electric control function fails, the equipment cannot be stopped immediately, so that the skid rushes out of the roller bed and rushes into the vacancy, accidents are caused, and dangers occur.

Disclosure of Invention

The present invention provides a movable stop block for butting a roller bed, so as to solve the problems of the prior art that when a skid moves on the roller bed, a corresponding electrical element is provided to detect the position of the skid to control the deceleration and stop of a conveying device, and when the electrical element fails or the electrical control function fails, the device cannot be stopped immediately, so that the skid rushes out of the roller bed and rushes into a gap to cause an accident, and a danger occurs.

In order to achieve the purpose, the invention provides the following technical scheme: a movable stop block for butting a roller bed comprises a bottom plate, wherein a first through hole is formed in the middle of the bottom plate, one end of a rotating shaft is fixedly connected in the first through hole, a nylon sleeve is sleeved on the other end of the rotating shaft, a rotating shaft outer sleeve is sleeved on the outer side of the nylon sleeve, a swing block is arranged on the outer side of the rotating shaft outer sleeve and is fixedly connected on the rotating shaft outer sleeve through a second through hole, a third through hole is formed below the second through hole and positioned on the swing block, an adjusting roller mechanism is arranged in the third through hole, a vertical plate is fixedly connected to the upper end of the swing block, an arc-shaped long hole groove is formed below the rotating shaft and positioned on the swing block, an in-situ stop block is arranged in the arc-shaped long hole groove, one end of the in-situ stop block penetrates through the arc-shaped long hole groove and is fixedly connected to the bottom plate, a torsion stop block is arranged below the in-situ stop block, and one end of the torsion stop block is fixedly connected to the swing block, the right side of the swing block is positioned on the rotating shaft outer sleeve and is sleeved with a torsion spring, the two bending ends of the torsion spring are separated to the left side and the right side by an in-situ stop block and a torsion stop block, the right end of the rotating shaft is provided with an end cover, the end cover is fixedly connected with the rotating shaft through an end cover locking screw, and the torsion spring is clamped between the swing block and the end cover.

Preferably, the adjusting roller mechanism comprises a sleeve, the sleeve is fixedly connected to the third through hole, an extension shaft is arranged in the sleeve and slides in the sleeve, a jackscrew penetrates through the sleeve from front to back, the jackscrew is in threaded connection with the sleeve, one end of the jackscrew is abutted to the extension shaft, one end of the extension shaft extends out of the sleeve and is sleeved with a bearing, the roller is mounted outside the bearing, a groove is formed in the side face of the roller, a clamp spring is arranged in the groove, a roller locking screw is arranged on the right side of the roller, and the roller locking screw penetrates through a gasket to fix the roller on the extension shaft.

Preferably, the bottom plate is provided with 4 strip holes, the strip holes are arranged in the vertical direction, mounting bolts are arranged in the strip holes, and the bottom plate is fixed on a side face guard plate of the roller bed through the mounting bolts.

Preferably, interference fit is carried out between the nylon sleeve and the rotating shaft, and clearance fit is carried out between the rotating shaft outer sleeve and the nylon sleeve.

Preferably, the in-situ stop block and the torsion stop block are both of a columnar structure, and the center lines of the in-situ stop block, the torsion stop block and the rotating shaft are all perpendicular to the central section of the bottom plate.

Compared with the prior art, the invention has the beneficial effects that: a movable stop block for a butt-joint roller bed has the following advantages: the invention is mainly installed on a roller bed of a moving machine and a fixed roller bed butted with the moving machine, when the two roller beds are not butted, a swing block can not rotate around a rotating shaft, the upper end of the swing block blocks the end part of a skid body, the forward movement path of the skid on the roller bed is limited, the skid can not rush out of the roller bed due to equipment failure, when the two roller beds are butted, a fixed stop block can be contacted with a roller on the swing block, the roller can roll along the inclined plane of a lower bracket of the fixed stop block, so that the swing block drives a rotating shaft outer sleeve to rotate around the rotating shaft, the upper end of the swing block opens the end part of the skid body, the skid continues to move forward, when the skid completes the lane change, the moving machine returns to the original position, the swing block rotates in the opposite direction under the action of a torsion spring and returns to the original position, the problem that when an electrical element fails or an electrical control function fails, the equipment can not stop immediately, the skid rushes out of the roller bed to be vacant is solved effectively, the invention has the advantages of simple structure, strong practicability and lower economic cost.

The adjusting roller mechanism is arranged, the gap between the lengthened shaft in the adjusting roller mechanism and the sleeve is small, the lengthened shaft can move back and forth in the sleeve and can be fixed through the jackscrew, so that the front and rear positions of the roller can be adjusted, the installation is flexible, and the application range is enlarged.

When the swinging block is used, when the roller bed of the moving machine is separated from the fixed roller bed butted with the moving machine, the swinging block returns to the original position under the action of the torsion spring, so that the phenomenon of blocking caused by overlarge long-time abrasion gap between the rotating shaft outer sleeve and the rotating shaft can be avoided, and the stability is good.

Drawings

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

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

FIG. 3 is a left side sectional structural schematic view of the present invention;

FIG. 4 is a schematic view of the present invention in operation;

fig. 5 is an enlarged schematic view of a portion a in fig. 3.

In the figure: 1. a base plate; 2. a first through hole; 3. a rotating shaft; 4. a nylon sleeve; 5. a rotating shaft outer sleeve; 6. a gear is swung; 7. a second through hole; 8. a third through hole; 9. a vertical plate; 10. an arc-shaped long hole groove; 11. an in-situ stop block; 12. a turning stop block; 13. a torsion spring; 14. an end cap; 15. locking screws by the end covers; 16. a sleeve; 17. lengthening a shaft; 18. carrying out top thread; 19. a bearing; 20. a roller; 21. grooving; 22. a clamp spring; 23. a roller locking screw; 24. a gasket; 25. a strip hole; 26. and (6) installing a bolt.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Referring to fig. 1-5, the present invention provides a technical solution: a movable stop block for a butt-joint roller bed comprises a bottom plate 1, wherein a first through hole 2 is formed in the middle of the bottom plate 1, one end of a rotating shaft 3 is fixedly connected in the first through hole 2, the purpose of the purpose is to ensure that the center of the first through hole 2 and the center of the rotating shaft 3 are on the same straight line, a nylon sleeve 4 is sleeved at the other end of the rotating shaft 3, a rotating shaft outer sleeve 5 is sleeved outside the nylon sleeve 4, a swing block 6 is arranged outside the rotating shaft outer sleeve 5, the swing block 6 is fixedly connected to the rotating shaft outer sleeve 5 through a second through hole 7, the swing block 6 can rotate around the center of the rotating shaft 3 together with the rotating shaft outer sleeve 5, a third through hole 8 is formed below the second through hole 7 and positioned on the swing block 6, an adjusting roller mechanism is arranged in the third through hole 8, a vertical plate 9 is fixedly connected to the upper end of the swing block 6, and the structural strength of the upper end of the swing block 6 is improved, an arc-shaped long hole groove 10 is arranged below the rotating shaft 3 and on the swing block 6, an in-situ stop block 11 is arranged in the arc-shaped long hole groove 10, one end of the in-situ stop block 11 penetrates through the arc-shaped long hole groove 10 and is fixedly connected to the bottom plate 1, a torsion stop block 12 is arranged below the in-situ stop block 11, one end of the torsion stop block 12 is fixedly connected to the swing block 6, the in-situ stop block 11 is fixedly welded to the bottom plate 1 and keeps a relative static relation with the bottom plate 1, the torsion stop block 12 is welded to the swing block 6 and can rotate around the center of the rotating shaft 3 along with the swing block 6, a torsion spring 13 is sleeved on the right side of the swing block 6 and on the rotating shaft outer sleeve 5, two bent ends of the torsion spring 13 are separated to the left side and the right side by the in-situ stop block 11 and the torsion stop block 12, an end cover, the torsion spring 13 is clamped between the swing block 6 and the end cover 14, when the swing block 6 rotates around the rotating shaft 3, the torsion stop block 12 drives one bent end of the torsion spring 13 to rotate clockwise or anticlockwise, and the other bent end of the torsion spring 13 is limited by the in-situ stop block 11 to be in situ fixed, so that the torsion spring 13 generates torsion, one side of the spiral line axis of the torsion spring 13 extrudes the surface of the swing block 6, and the other side of the spiral line axis of the torsion spring 13 is extruded by the end cover 14, thereby solving the deflection problems that the lower end inclines backwards and the upper end inclines forwards due to the heavier gravity center of the swing block 6, and meanwhile, the swing block 6 returns to the in situ under the action of the torsion spring 13, so that the blocking phenomenon of the swing block 6 caused by the overlarge long-time abrasion gap between the rotating shaft outer sleeve 5 and the rotating shaft 3 can not occur, and the stability is good.

Specifically, the adjusting roller mechanism comprises a sleeve 16, the sleeve 16 is fixedly connected to the third through hole 8, an extension shaft 17 is arranged in the sleeve 16, the extension shaft 17 is arranged in the sleeve 16 in a sliding manner, jack screws 18 are arranged on the front surface and the rear surface of the sleeve 16 in a penetrating manner, the jack screws 18 are in threaded connection with the sleeve 16, one end of each jack screw 18 abuts against the extension shaft 17, one end of each extension shaft 17 extends out of the sleeve 16 and is sleeved with a bearing 19, a roller 20 is arranged outside the bearing 19, a slot 21 is formed in the side surface of the roller 20, a snap spring 22 is arranged in the slot 21, the bearing 19 is sealed in the roller 20 to play a limiting role, the bearing 19 is tightly matched with the roller 20, the outer ring of the bearing 19 rotates around the extension shaft 17 to drive the roller 20 to rotate around the extension shaft 17, a roller locking screw 23 is arranged on the right side of the roller 20, the roller locking screw 23 penetrates through a gasket 24 to fix the roller 20 on the extension shaft 17, the whole body of the adjustable roller is prevented from moving or falling off, the gap between the lengthened shaft 17 and the sleeve 16 in the adjustable roller mechanism is small through the arrangement of the adjustable roller mechanism, and the lengthened shaft 17 can move back and forth in the sleeve 16, so that the front and back positions of the adjustable roller 20 are adjusted, the installation is flexible, and the application range is enlarged.

Specifically, the bottom plate 1 is provided with 4 strip holes 25, the strip holes 25 are arranged in the vertical direction, mounting bolts 26 are arranged in the strip holes 25, the bottom plate 1 is fixed on a side guard plate of the roller bed through the mounting bolts 26, and the vertical positions of the movable stop block devices can be adjusted through the four strip holes 25.

Specifically, interference fit between nylon cover 4 and pivot 3, be clearance fit between pivot overcoat 5 and the nylon cover 4.

Specifically, the home position stopper 11 and the torsion stopper 12 are both of a columnar structure, and the center lines of the home position stopper 11, the torsion stopper 12 and the rotating shaft 3 are all perpendicular to the central section of the bottom plate 1.

The working principle is as follows: the invention is mainly installed on a shifting machine roller bed and a fixed roller bed butted with the shifting machine, when the two roller beds are not butted, a swing block 6 can not rotate around a rotating shaft 3, a torsion block 12 is in an original position state, a torsion spring 13 can not deform and bear no force, the upper end of the swing block 6 blocks the end part of a skid body, the forward movement path of the skid on the roller bed is limited, the skid can not be rushed out of the roller bed due to equipment failure, when the two roller beds are butted, the fixed block can be contacted with a roller 20 on the swing block 6, the roller 20 can roll along the inclined plane of a lower bracket of the fixed block, the lower bracket can simultaneously support the roller 20, a lengthened shaft 17, a sleeve 16 and the like at the lower end of the swing block 6 together, the swing block 6 drives a rotating shaft jacket 5 to rotate around the rotating shaft 3, the original position block 11 blocks one bending end of the torsion spring 13, the torsion block 12 drives the other bending end of the torsion spring 13 to rotate along with the swing block 6, when the roller 20 climbs to the plane of the lower bracket, the positions of the roller 20 at the lower end of the swing block 6, the lengthened shaft 17, the sleeve 16 and the like do not rise, the swing block 6 does not drive the rotating shaft jacket 5 to continue rotating around the rotating shaft 3, at the moment, the upper end of the swing block 6 avoids the end part of the skid body, two bent ends of the torsion spring 13 form a little angle, the torsion spring 13 stores force, after the conveying system runs and the skid passes, the moving machine returns to the original position, the moving roller bed is separated from the fixed roller bed butted with the moving machine, the torsion of the torsion spring 13 is slowly released, the torsion block 12 drives the swing block 6 and the rotating shaft jacket 5 to rotate around the rotating shaft 3 in the opposite direction under the torsion action of the torsion spring 13 until the inclined plane of the roller 20 and the bracket under the fixed block is separated back to the original position, the bent end of the torsion spring 13 returns to the original initial position, the mechanism running is completed once, and the problem that when the electrical, the device cannot be immediately stopped, so that the skid can be punched out of a roller bed to be punched into a gap to cause accidents and cause dangers, the adjusting roller mechanism is arranged, the gap between the lengthened shaft 17 and the sleeve 16 in the adjusting roller mechanism is small, the lengthened shaft 17 can move back and forth in the sleeve 16 and can be fixed through the jackscrew 18, the front and back positions of the roller 20 can be adjusted, the mounting flexibility is realized, the use range is enlarged, the structure is simple, the practicability is high, and the economic cost is low.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A movable stop block for a butt joint roller bed comprises a bottom plate (1), and is characterized in that: a first through hole (2) is formed in the middle of the bottom plate (1), one end of a rotating shaft (3) is fixedly connected in the first through hole (2), a nylon sleeve (4) is sleeved on the other end of the rotating shaft (3), a rotating shaft outer sleeve (5) is sleeved on the outer side of the nylon sleeve (4), a swing block (6) is arranged on the outer side of the rotating shaft outer sleeve (5), the swing block (6) is fixedly connected to the rotating shaft outer sleeve (5) through a second through hole (7), a third through hole (8) is formed below the second through hole (7) and on the swing block (6), an adjusting roller mechanism is arranged in the third through hole (8), a vertical plate (9) is fixedly connected to the upper end of the swing block (6), an arc-shaped long hole groove (10) is formed below the rotating shaft (3) and on the swing block (6), and an in-situ stop block (11) is arranged in the arc-shaped long hole groove (10), arc slot (10) fixed connection is passed to the one end of normal position dog (11) on bottom plate (1), the below of normal position dog (11) is equipped with twists reverse dog (12), the one end fixed connection that twists reverse dog (12) is on putting fender (6), the right side that the pendulum kept off (6) is equipped with torsion spring (13) on lieing in pivot overcoat (5) cover, two bending ends of torsion spring (13) are separated the left and right sides by normal position dog (11) and twist reverse dog (12), the right-hand member of pivot (3) is equipped with end cover (14), end cover (14) are through end cover locking screw (15) and pivot (3) fixed connection, torsion spring (13) joint is kept off between (6) and end cover (14) in the pendulum.

2. A movable stop for a butt-roller bed as claimed in claim 1, wherein: the adjusting roller mechanism comprises a sleeve (16), the sleeve (16) is fixedly connected to the third through hole (8), an extension shaft (17) is arranged in the sleeve (16), the extension shaft (17) is arranged in the sleeve (16) in a sliding way, the front surface and the rear surface of the sleeve (16) are respectively provided with a jackscrew (18) in a penetrating way, the jackscrews (18) are in threaded connection with the sleeve (16), one end of the jackscrew (18) is abutted against the lengthened shaft (17), one end of the lengthened shaft (17) extends out of the sleeve (16) and is sleeved with a bearing (19), a roller (20) is arranged outside the bearing (19), a slot (21) is arranged on the side surface of the roller (20), a clamp spring (22) is arranged in the slot (21), a roller locking screw (23) is arranged on the right side of the roller (20), the roller locking screw (23) penetrates through the gasket (24) to fix the roller (20) on the lengthened shaft (17).

3. A movable stop for a butt-roller bed as claimed in claim 1, wherein: the roller bed is characterized in that 4 strip holes (25) are formed in the bottom plate (1), the strip holes (25) are arranged in the vertical direction, mounting bolts (26) are arranged in the strip holes (25), and the bottom plate (1) is fixed on a side face protection plate of the roller bed through the mounting bolts (26).

4. A movable stop for a butt-roller bed as claimed in claim 1, wherein: interference fit is between nylon cover (4) and pivot (3), be clearance fit between pivot overcoat (5) and nylon cover (4).

5. A movable stop for a butt-roller bed as claimed in claim 1, wherein: the in-situ stop block (11) and the torsion stop block (12) are both of a columnar structure, and the center lines of the in-situ stop block (11), the torsion stop block (12) and the rotating shaft (3) are all perpendicular to the central section of the bottom plate (1).