CN216863523U

CN216863523U - Over-speed protection device for object carrying table of stacking machine

Info

Publication number: CN216863523U
Application number: CN202220201868.8U
Authority: CN
Inventors: 董泽军
Original assignee: Jiaxing Dingshi Machinery Manufacturing Co ltd
Current assignee: Jiaxing Dingshi Machinery Manufacturing Co ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-07-01
Anticipated expiration: 2032-01-25

Abstract

The utility model discloses an over-speed protection device for a stacker carrier, which comprises a base, wherein the base is arranged on a bottom rail through a transmission mechanism; the stand of fixed connection at the base upper wall, the stand lateral wall has lift platform through slide rail sliding connection, be provided with the speed detection subassembly that is used for detecting the falling speed between lift platform and the stand. According to the utility model, the speed detection assembly is electrically connected with the original overspeed protection device of the equipment, when the descending speed is too high, the speed reduction protection is carried out through the original overspeed protection device such as a brake, the tension condition of the traction rope is constantly detected through the safety detection assembly, the safety hook is popped out through the elasticity of the spring and directly hung on the safety rod in an accident, the lifting platform is prevented from falling, and the hydraulic buffer rod between the safety hook and the rotating support can provide the buffer effect.

Description

Stacker objective table overspeed protection device

Technical Field

The utility model relates to the technical field of three-dimensional warehousing, in particular to an overspeed protection device for a stacker objective table.

Background

The stacker reciprocates through the stand of controlling the objective table on the stacker along the stacker to realize the transfer to the high-rise goods in the stereoscopic warehouse at the during operation, because the objective table will often reciprocate, sometimes can lead to the objective table out of control because the goods is overweight or equipment trouble, the objective table falling speed can produce great potential safety hazard at the excessive speed when out of control, to this problem, some overspeed protection device have been gone up in the existing market, but current overspeed protection device often reacts sensitively inadequately to the overspeed tenesmus phenomenon of this kind of shorter distance, often the objective table has fallen to the ground overspeed protection device and has not in time started yet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides an over-speed protection device for a stacker carrier.

In order to achieve the purpose, the utility model adopts the following technical scheme: the over-speed protection device for the stacker objective table comprises a base, wherein the base is arranged on a bottom rail through a transmission mechanism; the lifting platform is arranged on the side wall of the upright column, and the speed detection assembly for detecting the descending speed is arranged between the lifting platform and the upright column; the driving component is arranged between the base and the lifting platform and used for driving the lifting platform to lift; the safety detection component is arranged on one side of the upright post, which is far away from the slide rail, and is used for detecting whether the driving component fails or not; the mounting groove that sets up lift platform towards one side of stand, be provided with between mounting groove inside wall and the stand and be used for preventing the insurance structure that lift platform falls after drive assembly became invalid.

As a further description of the above technical solution:

drive assembly includes hoist motor, haulage rope, first support and two first guide pulleys, hoist motor fixed connection just keeps away from one side of lift platform at the base upper wall, hoist motor stretches out an end of a shaft portion fixedly connected with carousel, first support fixed connection is in the stand upper end, two first guide pulley all rotates to be connected in first support upper end and is close to both sides respectively, the haulage rope winding is at carousel outer wall and a free end and reel fixed connection, another free end and the lift platform fixed connection of carousel are kept away from to the haulage rope, the outer wall and two first guide pulley roll connection that the haulage rope is located between hoist motor and the lift platform.

As a further description of the above technical solution:

the speed detection assembly comprises a speed sensor and a speed measurement roller, the speed sensor is fixedly connected to the upper end of the lifting platform, the speed measurement roller is rotatably connected to the side wall of the speed sensor, and the outer wall of the speed measurement roller is in rolling connection with the side wall of the stand column.

As a further description of the above technical solution:

safety inspection subassembly includes second support, normally closed switch, telescopic link, second guide pulley, one side of slide rail is kept away from at the stand to second support fixed connection, telescopic link sliding connection is at the one end inside wall that the stand was kept away from to the second support, be provided with the extension spring between telescopic link and the second support, the second guide pulley rotates the one end of connecting at the telescopic link antetheca and keeping away from the second support through changeing the round pin, second guide pulley right side wall and haulage rope outer wall roll connection, normally closed switch fixed connection is at the second support antetheca and keeps away from the one end of stand, normally closed switch and second guide pulley center are about aliging.

As a further description of the above technical solution:

the insurance structure includes runing rest, safe couple and spring, electro-magnet, multiunit safety lever, the runing rest rotates through the pivot and connects at the mounting groove inside wall, safe couple sliding connection is at the one end inside wall that the pivot was kept away from to the runing rest, be provided with hydraulic buffer rod between safe couple and the runing rest, electro-magnet, spring from the top down set gradually in the mounting groove inboard right wall and be close to the position of the inboard upper wall of mounting groove, the electro-magnet is connected with the normally closed switch electricity.

As a further description of the above technical solution:

and the multiple groups of safety rods are fixedly connected to the inner side wall of the upright post.

The utility model has the following beneficial effects:

1. compared with the prior art, the over-speed protection device for the stacker object carrying table is electrically connected with the original over-speed protection device of the equipment through the speed detection assembly, when only the descending speed is too fast, the speed reduction protection is carried out through the original over-speed protection device such as a brake, and the contact detection mode of the speed detection roller is more sensitive than the sensor space detection reaction.

2. Compared with the prior art, this stacker objective table overspeed protection device, detect the tension condition of haulage rope constantly through the safety inspection subassembly, lead to the hoist engine not to have the output if the outage of taking place accident, the too big haulage rope condition such as fracture of load, the extension spring can pull back the second guide pulley and press the normally closed switch and make it open entirely among the safety inspection subassembly, thereby the control electro-magnet outage, safety hook pops out through the elasticity of spring and directly hangs on safety lever, avoid lift platform to fall, safety hook and the hydraulic buffer pole between the rotating support can provide buffering effect.

Drawings

FIG. 1 is a schematic view of the overall structure of the overspeed protection device for the loading platform of the stacker provided by the utility model;

FIG. 2 is a partial enlarged view of the stacker carrier overspeed protection apparatus at A in FIG. 1;

FIG. 3 is a partial enlarged view of the stacker carrier overspeed protection apparatus shown at B in FIG. 1;

FIG. 4 is a top sectional view of a safety inspection assembly of the over-speed protection device for the object carrying platform of the stacker provided by the utility model;

FIG. 5 is a partial side view of the connecting structure of the upright post and the lifting platform of the overspeed protection device for the stocker carrier according to the present invention;

FIG. 6 is a partial structural sectional view of a lifting platform of the stacker carrier overspeed protection device.

Illustration of the drawings:

1. a base; 2. a column; 3. a slide rail; 4. a lifting platform; 5. a first bracket; 6. a first guide wheel; 7. a hauling rope; 8. a hoisting motor; 9. a second bracket; 10. a normally closed switch; 11. a telescopic rod; 12. a second guide wheel; 13. a speed sensor; 14. a speed measuring roller; 15. a tension spring; 16. rotating the pin; 17. a safety lever; 18. mounting grooves; 19. a rotating shaft; 20. rotating the bracket; 21. a safety hook is arranged; 22. a spring; 23. an electromagnet.

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 to 6, the stacker carrier overspeed protection device according to the present invention: the device comprises a base 1, wherein the base 1 is arranged on a bottom rail through a transmission mechanism; fixed connection is at stand 2 of 1 upper wall of base, 2 lateral walls of stand have lift platform 4 through 3 sliding connection of slide rail, be provided with the speed detection subassembly that is used for detecting the falling speed between lift platform 4 and the stand 2, the speed detection subassembly includes speed sensor 13, speed measurement gyro wheel 14, speed sensor 13 fixed connection is in lift platform 4 upper end, speed measurement gyro wheel 14 rotates to be connected at speed sensor 13 lateral wall, 14 outer walls of speed measurement gyro wheel and 2 lateral walls roll connection of stand, speed detection subassembly is connected with the original braking system electricity of stacker, 14 direct contact measurement speed of speed measurement gyro wheel, it is more sensitive to compare the infrared detection reaction of separating empty, when discovering speed and exceeding the setting value, speed sensor 13 transmits the signal promptly and carries out the brake speed reduction to braking system.

A driving component arranged between the base 1 and the lifting platform 4 and used for driving the lifting platform 4 to lift, the driving component comprises a hoisting motor 8 and a traction rope 7, first support 5 and two first guide pulleys 6, 8 fixed connection of hoist motor just keep away from one side of lift platform 4 at 1 upper wall of base, hoist motor 8 stretches out a tip fixedly connected with carousel, 5 fixed connection of first support are in 2 upper ends of stand, two first guide pulleys 6 all rotate to connect and be close to both sides respectively in 5 upper ends of first support, 7 windings of haulage rope are at carousel outer wall and a free end and reel fixed connection, another free end and lift platform 4 fixed connection of carousel are kept away from to haulage rope 7, outer wall and two 6 roll connections of first guide pulleys that haulage rope 7 is located between hoist motor 8 and the lift platform 4, hoist motor 8 drives haulage rope 7, haulage rope 7 drives lift platform 4 after bypassing first guide pulley 6 and rises or descends.

The safety detection assembly is arranged on one side, far away from the sliding rail 3, of the upright post 2 and used for detecting whether the driving assembly fails or not, the safety detection assembly comprises a second support 9, a normally closed switch 10, an expansion link 11 and a second guide wheel 12, the second support 9 is fixedly connected to one side, far away from the sliding rail 3, of the upright post 2, the expansion link 11 is slidably connected to the inner side wall of one end, far away from the upright post 2, of the second support 9, a tension spring 15 is arranged between the expansion link 11 and the second support 9, the second guide wheel 12 is rotatably connected to the front wall of the expansion link 11 through a rotating pin 16 and is far away from one end of the second support 9, the right side wall of the second guide wheel 12 is in rolling connection with the outer wall of the traction rope 7, the normally closed switch 10 is fixedly connected to the front wall of the second support 9 and is far away from one end of the upright post 2, the centers of the normally closed switch 10 and the second guide wheel 12 are aligned left and right, when the winch motor 8 and the traction rope 7 work normally, the traction rope 7 is always in a stretched straight state, through the contact of haulage rope 7 with second guide pulley 12, pull out telescopic link 11 from the 9 inside walls of second support, when unable braking and haulage rope 7 when breaking down when hoist motor 8 breaks down, the restraint power of haulage rope 7 just is lost to second guide pulley 12 in the twinkling of an eye that the problem took place, and telescopic link 11 is pulled towards 2 one sides of stand rapidly by extension spring 15 to press normally closed switch 10 through second guide pulley 12, make normally closed switch 10 disconnection.

The safety structure comprises a rotating support 20, a safety hook 21, a spring 22, an electromagnet 23 and a plurality of groups of safety rods 17, wherein the rotating support 20 is rotatably connected to the inner side wall of the mounting groove 18 through a rotating shaft 19, the safety hook 21 is slidably connected to the inner side wall of one end, far away from the rotating shaft 19, of the rotating support 20, a hydraulic buffer rod is arranged between the safety hook 21 and the rotating support 20, the electromagnet 23 and the spring 22 are sequentially arranged on the right wall inside the mounting groove 18 and close to the upper wall inside the mounting groove 18 from top to bottom, the electromagnet 23 is electrically connected with the normally closed switch 10, the plurality of groups of safety rods 17 are fixedly connected to the inner side wall of the upright 2, and during normal work, the electromagnet 23 is in an electrified state, the electromagnet 23 adsorbs the safety hook 21 and the adsorption force is larger than that of the spring 22, when the normally closed switch 10 is switched off, the electromagnet 23 is powered off, and the safety hook 21 is rapidly popped up through the elastic force of the spring 22, so that the safety hook is hung on the safety rod 17 to prevent the lifting platform 4 from falling.

The working principle is as follows: the base 1 is arranged on the bottom rail through a transmission mechanism, the speed detection assembly is electrically connected with an original brake system of the stacker, the speed measurement roller 14 is used for measuring the speed in a direct contact mode, the reaction is more sensitive compared with the empty infrared detection, when the speed exceeds a set value, the speed sensor 13 transmits a signal to the brake system for braking and speed reduction, the hoisting motor 8 drives the traction rope 7, the traction rope 7 drives the lifting platform 4 to ascend or descend after bypassing the first guide wheel 6, when the hoisting motor 8 and the traction rope 7 normally work, the traction rope 7 is always in a stretched state, the telescopic rod 11 is pulled out from the inner side wall of the second bracket 9 through the contact between the traction rope 7 and the second guide wheel 12, when the hoisting motor 8 fails to brake and the traction rope 7 breaks, the second guide wheel 12 loses the constraint force of the traction rope 7 at the moment of a problem, and the telescopic rod 11 is rapidly pulled towards one side of the upright post 2 by the tension spring 15, thereby press normally closed switch 10 through second guide pulley 12 for normally closed switch 10 disconnection, during normal work, electro-magnet 23 is in the on-state, and electro-magnet 23 adsorbs safety hook 21 and adsorption affinity is greater than spring 22, and after normally closed switch 10 disconnection, electro-magnet 23 cuts off the power supply, and through the elasticity of spring 22, safety hook 21 is popped out fast, thereby hangs on safety lever 17, prevents lift platform 4 tenesmus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. Stacker objective table overspeed protection device, its characterized in that: the device comprises a base (1), wherein the base (1) is arranged on a bottom rail through a transmission mechanism;

the lifting device comprises a stand column (2) fixedly connected to the upper wall of a base (1), wherein the side wall of the stand column (2) is connected with a lifting platform (4) in a sliding mode through a sliding rail (3), and a speed detection assembly for detecting the descending speed is arranged between the lifting platform (4) and the stand column (2);

the driving component is arranged between the base (1) and the lifting platform (4) and is used for driving the lifting platform (4) to lift;

the safety detection component is arranged on one side, away from the sliding rail (3), of the upright post (2) and used for detecting whether the driving component fails or not;

the lifting platform is characterized in that a mounting groove (18) is formed in one side, facing the stand column (2), of the lifting platform (4), and a safety structure used for preventing the lifting platform (4) from falling after the driving assembly fails is arranged between the inner side wall of the mounting groove (18) and the stand column (2).

2. The stacker carrier overspeed protection device of claim 1, wherein: the driving component comprises a hoisting motor (8), a traction rope (7), a first bracket (5) and two first guide wheels (6), the hoisting motor (8) is fixedly connected with the upper wall of the base (1) and one side far away from the lifting platform (4), the end part of the extension shaft of the hoisting motor (8) is fixedly connected with a turntable, the first bracket (5) is fixedly connected with the upper end of the upright post (2), the two first guide wheels (6) are rotatably connected with the upper end of the first bracket (5) and respectively close to two sides, the traction rope (7) is wound on the outer wall of the turntable, one free end of the traction rope is fixedly connected with the reel, the other free end of the traction rope (7) far away from the turntable is fixedly connected with the lifting platform (4), the outer wall of the traction rope (7) between the hoisting motor (8) and the lifting platform (4) is in rolling connection with the two first guide wheels (6).

3. The stacker carrier overspeed protection device of claim 2, wherein: the speed detection assembly comprises a speed sensor (13) and a speed measurement roller (14), the speed sensor (13) is fixedly connected to the upper end of the lifting platform (4), the speed measurement roller (14) is rotatably connected to the side wall of the speed sensor (13), and the outer wall of the speed measurement roller (14) is in rolling connection with the side wall of the upright column (2).

4. The stacker carrier overspeed protection device of claim 3, wherein: the safety detection assembly comprises a second bracket (9), a normally closed switch (10), a telescopic rod (11) and a second guide wheel (12), the second bracket (9) is fixedly connected with one side of the upright post (2) far away from the slide rail (3), the telescopic rod (11) is connected with the inner side wall of one end of the second bracket (9) far away from the upright post (2) in a sliding way, a tension spring (15) is arranged between the telescopic rod (11) and the second bracket (9), the second guide wheel (12) is rotatably connected to the front wall of the telescopic rod (11) through a rotating pin (16) and is far away from one end of the second bracket (9), the right side wall of the second guide wheel (12) is connected with the outer wall of the traction rope (7) in a rolling way, the normally closed switch (10) is fixedly connected with the front wall of the second bracket (9) and one end far away from the upright post (2), the normally closed switch (10) is aligned with the center of the second guide wheel (12) in a left-right mode.

5. The stacker carrier overspeed protection device of claim 4, wherein: the safety structure includes runing rest (20), safety hook (21) and spring (22), electro-magnet (23), multiunit safety lever (17), runing rest (20) rotates through pivot (19) and connects in mounting groove (18) inside wall, the one end inside wall of pivot (19) is kept away from in runing rest (20) to safety hook (21) sliding connection, be provided with the hydraulic buffer pole between safety hook (21) and runing rest (20), electro-magnet (23), spring (22) from the top set gradually in mounting groove (18) inboard right wall and be close to the position of mounting groove (18) inboard upper wall, electro-magnet (23) are connected with normally closed switch (10) electricity.

6. The stacker carrier overspeed protection device of claim 5, wherein: and the multiple groups of safety rods (17) are fixedly connected to the inner side wall of the upright post (2).