CN217264247U

CN217264247U - Torsion-limiting electronic lifting appliance

Info

Publication number: CN217264247U
Application number: CN202220294602.2U
Authority: CN
Inventors: 季锋; 黄文忠
Original assignee: Jiangsu Daming Industrial Technology Group Co ltd
Current assignee: Jiangsu Daming Industrial Technology Group Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-08-23
Anticipated expiration: 2032-02-14

Abstract

The utility model discloses a torsion restriction electron hoist, including hanging the seat, be provided with sliding seat and hook seat on hanging the seat, sliding connection has two lifting claw on the sliding seat, is provided with the rack on the lifting claw, and it is provided with the tooth axle to rotate on the lifting seat, and two racks are symmetrical about the axis centrol of tooth axle, rack and tooth axle meshing, and the tip of tooth axle is provided with grip slipper and last grip slipper down, goes up the grip slipper and is provided with the sprocket down between the grip slipper, and the sprocket passes through gear motor drive and rotates, goes up the grip slipper and forms friction fit with lower grip slipper from both sides butt sprocket. The utility model discloses a sprocket drive axis of tooth rotates, realizes opening and shutting of lifting claw, and when there was the hoist and mount thing on the lifting claw, the resistance that the axis of tooth received was greater than sprocket and last grip slipper and the frictional force between the grip slipper down, makes the sprocket take place to skid to make the lifting claw can't open, realized the safety protection to the lifting claw, reduced because of the maloperation leads to the probability that the hoist and mount thing dropped, promoted the security of hoist.

Description

Torsion-limiting electronic lifting appliance

Technical Field

The utility model belongs to the technical field of the hoist, especially, relate to a torsion restriction electron hoist.

Background

The lifting appliance refers to a device for lifting a heavy object in a lifting machine, the most common lifting appliances for lifting finished objects are a lifting hook and a lifting belt, and other lifting rings, lifting suckers, clamps, forks and the like are also used, so that the lifting appliance is widely applied to the lifting industry. The horizontal coil hanger is used as a hanger and is mainly used for lifting stainless steel and carbon steel coils in a transfer workshop, and the horizontal coil hanger can move repeatedly in a three-dimensional space according to the conditions of logistics, production, storage and the like by means of a travelling crane so as to finish the warehouse-in and warehouse-out carrying operation of various coils of steel.

Present horizontal coil hoist is when using, is rotated by gear motor drive pinion, through the rack cooperation on pinion and the lifting claw, the drive lifting claw opens and is closed, and then realizes the hoist and mount of coil of strip, nevertheless at actual hoist and mount in-process, the lifting claw takes place the action because of the maloperation easily, if hoist and mount on the lifting claw has the coil of strip this moment, the coil of strip will take place, causes huge loss, consequently, in order to guarantee the security of hoist and mount, needs a torsion restriction electronic hoist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a torsion restriction electron hoist to solve current hoist at hoist and mount in-process, the lifting claw is opened because of the maloperation easily, leads to hoist and mount article to drop, the technical problem that the security of existence is low.

In order to achieve the above object, the utility model discloses a torque force limit electron hoist's concrete technical scheme as follows:

the utility model provides a torsion restriction electron hoist, includes and hangs the seat, it is provided with sliding seat and hook seat on the seat to hang, sliding connection has two lifting claw on the sliding seat, be provided with the rack on the lifting claw, it is provided with the tooth axle to rotate on the seat to hang, two the rack is about the axis central symmetry of tooth axle, the rack with the tooth axle meshing, the tip of tooth axle is provided with grip slipper and last grip slipper down, go up the grip slipper with be provided with the sprocket down between the grip slipper, the sprocket passes through gear motor drive and rotates, go up the grip slipper with the grip slipper forms friction fit from both sides butt sprocket down.

Preferably, in order to, the grip slipper includes that the coaxial fixation is in the tubulose portion of pinion tip, be provided with flange portion on the first end periphery of tubulose portion, the cover is equipped with sprocket and last grip slipper in the tubulose portion, the sprocket passes through the bearing and is connected with tubulose portion, the sprocket is located flange portion with go up between the grip slipper, still be provided with the regulating part in the tubulose portion, the regulating part with it connects to go up the grip slipper.

Preferably, in order to adjust the tightness of the clamping of the upper clamping seat and the lower clamping seat on the chain wheel, the second end of the tubular part is detachably connected with a fixed sleeve, the fixed sleeve is provided with a threaded hole along the axial direction of the tubular part, a bolt is connected with the threaded hole in an internal thread manner, and the front end of the bolt is abutted to the upper clamping seat.

Preferably, in order to improve the stability of the upper clamping seat and the lower clamping seat in clamping the chain wheel, a belleville spring is further sleeved on the periphery of the tubular portion and is located between the upper clamping seat and the bolt.

Preferably, in order to improve the mounting stability of the belleville spring, a groove is formed in one side, adjacent to the belleville spring, of the upper clamping seat, the belleville spring is located in the groove, a gasket is further sleeved on the periphery of the tubular portion, and the gasket is located between the belleville spring and the bolt.

Preferably, in order to increase the friction between the upper clamping seat and the sprocket and the friction between the lower clamping seat and the sprocket, and prevent slipping, friction plates are arranged on the flange portion and the side face, adjacent to the sprocket, of the upper clamping seat.

Preferably, in order to improve the firmness of the installation of the friction plate, annular grooves are formed in the side faces, adjacent to the chain wheel, of the flange portion and the side faces, adjacent to the chain wheel, of the upper clamping seat, the friction plate is annular, and the friction plate is arranged in the annular grooves.

Preferably, in order to improve the stability of the installation of the friction plate, an anti-skid protrusion is arranged on the inner wall of the annular groove.

Preferably, in order to realize spacing to the sprocket, promote the reliability of sprocket, the spacing groove has been seted up to at least one side of sprocket, the spacing groove for the annular and with the coaxial setting of tubulose portion, it is provided with the holding ring rather than matching to slide in the spacing groove, holding ring and flange portion or last grip slipper fixed connection.

Preferably, in order to promote the convenience of the disassembly and assembly of the fixed sleeve, the periphery of the second end of the tubular part is provided with an external thread, the inner side wall of the fixed sleeve is provided with an internal thread, and the tubular part is in threaded connection with the fixed sleeve.

The utility model discloses a torsion restriction electron hoist has following advantage: the sprocket drive pinion rotates, realizes opening and shutting of lifting claw, and when there was the hoist and mount thing on the lifting claw, the resistance that the pinion received was greater than sprocket and last grip slipper and the frictional force between the grip slipper down, makes the sprocket take place to skid to make the lifting claw can't open, realized the safety protection to the lifting claw, reduced because of the probability that the maloperation leads to hoist and mount thing to drop, promoted the security of hoist.

Drawings

Fig. 1 is a schematic structural view of a torque-limiting electronic hanger according to the present invention;

fig. 2 is a schematic view of the internal structure of the hanging seat of the present invention;

FIG. 3 is a schematic view of the connection structure of the sprocket and the gear shaft of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

the notation in the figure is: 1. a sliding seat; 2. a hanging seat; 3. a lifting claw; 4. a hook base; 5. a reduction motor; 6. a gear shaft; 7. a rack; 8. a bearing; 9. an upper clamping seat; 10. a gasket; 11. fixing a sleeve; 12. a positioning ring; 13. a limiting groove; 14. a bolt; 15. a belleville spring; 16. a groove; 17. a sprocket; 18. a friction plate; 19. a lower clamping seat; 20. an annular groove.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.

As shown in fig. 1-2, a torsion-limiting electronic hanger comprises a hanger base 2, a sliding base 1 is fixed on the hanger base 2, a hook base 4 is arranged on the top of the hanger base 2, the hanger can be connected with a traveling crane through the hook base 4, two hanging claws 3 are slidably connected on the sliding base 1, racks 7 are arranged on the hanging claws 3, a gear shaft 6 is rotatably arranged on the hanger base 2, the two racks 7 are symmetrical about the axis center of the gear shaft 6, the racks 7 are meshed with the gear shaft 6, a lower clamping base 19 comprises a tubular part coaxially fixed on the end part of the gear shaft 6, a flange part is integrally formed on the periphery of the first end of the tubular part, a chain wheel 17 and an upper clamping base 9 are sleeved on the tubular part, the chain wheel 17 is connected with the tubular part through a bearing, the mounting stability of the chain wheel 17 can be improved through the bearing connection, the chain wheel 17 is prevented from inclining due to overlarge mounting clearance, further, the blocking transmission is prevented from being unsmooth, the chain wheel 17 is driven to rotate through a reduction motor 5, the chain wheel 17 is located between the flange portion and the upper clamping seat 9, friction plates 18 made of asbestos are arranged on the side faces, adjacent to the chain wheel 17, of the flange portion and the upper clamping seat 9, friction force between the chain wheel 17 and the upper clamping seat 9 and between the chain wheel 9 and the lower clamping seat 19 can be increased through arrangement of the friction plates 18, reliable transmission is achieved, the toothed shaft 6 and the chain wheel 17 are made of alloy steel, and the toothed portion is subjected to quenching treatment, so that transmission strength is greatly improved.

In actual use, speed reduction motor 5 drives sprocket 17 to rotate, flange portion and upper clamping seat 9 are connected with sprocket 17 through friction plate 18, sprocket 17 can drive lower clamping seat 19 to rotate through the action of friction force, so that gear shaft 6 rotates through lower clamping seat 19, gear shaft 6 is matched with rack 7, two lifting claws 3 are driven to move close to or away from each other along sliding seat 1 to realize opening and closing of two lifting claws 3, and then a steel coil can be hoisted through the lifting claws, when steel coil is hoisted by lifting claws 3, the friction force is increased due to the increase of pressure between lifting claws 3 and sliding seat 1, the resistance force for rotating gear shaft 6 is increased, the friction force between sprocket 17 and friction plate 18 can be controlled by controlling the pressure of upper clamping seat 9 and lower clamping seat 19 on sprocket 17, when the friction force between sprocket 17 and friction plate 18 is smaller than the resistance force for rotating gear shaft 6, sprocket 17 slips, unable drive lifting claw 3 opens, when can preventing hoist and mount coil of strip, lifting claw 3 opens because of the maloperation, leads to the coil of strip to drop, has promoted the security of hoist greatly, with present through sensor electron detect on the hoist whether hoist and mount coil of strip, restricts lifting claw 3 and opens and shut and compare, the torsion restriction mode of sprocket 17 is pure mechanical mechanism, the fault rate is lower, safe and reliable more.

When the hanger is in practical use, if the friction force between the chain wheel 17 and the upper clamping seat 9 and the lower clamping seat 19 cannot be adjusted, the hanger can only be suitable for hoisting steel coils with the weight within a fixed range, therefore, as shown in fig. 3, the periphery of the second end of the tubular part is provided with external threads, the inner side wall of the fixing sleeve 11 is provided with internal threads, the tubular part is in threaded connection with the fixing sleeve 11, the fixing sleeve 11 can be conveniently disassembled and assembled, five threaded holes are formed in the fixing sleeve 11 along the axial direction of the tubular part, each threaded hole is arranged around the axis of the tubular part, the threaded holes are in threaded connection with bolts 14, the periphery of the tubular part is further sleeved with a gasket 10, the gasket 10 is connected with the front ends of the bolts 14, the periphery of the tubular part is further sleeved with two belleville springs 15, one side, adjacent to the belleville springs 15, of the upper clamping seat 9 is provided with a groove 16, the belleville springs 15 are positioned in the groove 16, and the groove 16 can realize the positioning of the belleville springs 15, the belleville spring 15 is prevented from being biased, and the washer 10 is connected to the belleville spring 15.

During the use, through the position of the bolt 14 on the regulation fixed cover 11, come the pressure that the adjusting washer 10 produced belleville spring 15, and then control the pressure between upper grip slipper 9 and the sprocket 17, realize the regulation of the frictional force between sprocket 17 and upper grip slipper 9 and the lower grip slipper 19, realize the regulation to sprocket 17 torsion, make this hoist when hoist different weight coil of strip, all can play effectual guard action, under belleville spring 15's effect, not only can play certain cushioning effect, effectual protection each part, belleville spring 15's elasticity simultaneously, can make friction disc 18 and sprocket 17 laminate inseparabler, promote transmission efficiency.

The friction plate 18 is used as a key component, not only needs to be stably installed, but also needs to be conveniently disassembled and assembled, so that the flange part and the side surface of the upper clamping seat 9, which is adjacent to the chain wheel 17, are provided with the annular grooves 20, the friction plate 18 is annular, the friction plate 18 is arranged in the annular grooves 20, and the inner wall of the annular groove 20 is provided with the anti-skidding protrusions. The ring channel 20 realizes the limiting displacement to friction disc 18, and the while antiskid is protruding, can prevent to take place to skid between the inner wall of friction disc 18 and ring channel 20, promotes the stability of friction disc 18 installation, compares with fixing friction disc 18 through glue etc. spacing through ring channel 20 more does benefit to the change of friction disc 18, has promoted the practicality of hoist.

The reliability of sprocket 17 installation can directly influence the transmission between gear motor 5 and the tooth axle 6, consequently as shown in fig. 4, spacing groove 13 has all been seted up to sprocket 17's both sides, and spacing groove 13 is the annular and sets up with the tubulose portion is coaxial, slides in the spacing groove 13 and is provided with the holding ring 12 rather than matching, two holding rings 12 respectively with flange portion and last holder 9 fixed connection. Through the spacing effect each other between spacing groove 13 and holding ring 12, can realize the location to sprocket 17, promote sprocket 17 pivoted stability greatly, promote transmission effect, prevent that sprocket 17 from taking place the phenomenon that the card is died or the chain drops because of the displacement.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. The utility model provides a torsion restriction electron hoist, includes hanger bracket (2), be provided with sliding seat (1) and hook seat (4) on hanger bracket (2), sliding connection has two lifting claw (3) on sliding seat (1), be provided with rack (7) on lifting claw (3), it is provided with tooth axle (6) to rotate on hanger bracket (2), two rack (7) about the axis central symmetry of tooth axle (6), rack (7) with tooth axle (6) meshing, its characterized in that:

the tip of pinion (6) is provided with grip slipper (19) and last grip slipper (9) down, go up grip slipper (9) with be provided with sprocket (17) down between grip slipper (19), sprocket (17) are through gear motor (5) drive rotation, go up grip slipper (9) with grip slipper (19) form friction fit from both sides butt sprocket (17) down.

2. The torsion limitation electronic lifting appliance according to claim 1, wherein the lower clamping seat (19) comprises a tubular part coaxially fixed at the end of the gear shaft (6), a flange part is arranged on the outer periphery of the first end of the tubular part, a chain wheel (17) and an upper clamping seat (9) are sleeved on the tubular part, the chain wheel (17) is connected with the tubular part through a bearing, the chain wheel (17) is located between the flange part and the upper clamping seat (9), and an adjusting part is further arranged on the tubular part and connected with the upper clamping seat (9).

3. The torsion-limiting electronic hanger according to claim 2, wherein a fixing sleeve (11) is detachably connected to the second end of the tubular portion, a threaded hole is formed in the fixing sleeve (11) along the axial direction of the tubular portion, a bolt (14) is connected to the threaded hole in a threaded manner, and the front end of the bolt (14) abuts against the upper clamping seat (9).

4. The torsion-limiting electronic spreader according to claim 3, wherein a belleville spring (15) is further sleeved on the outer circumference of the tubular part, and the belleville spring (15) is located between the upper clamping seat (9) and the bolt (14).

5. The torsion limited electronic spreader according to claim 4, wherein a groove (16) is provided on a side of the upper holder (9) adjacent to the belleville spring (15), the belleville spring (15) is located in the groove (16), a washer (10) is further sleeved on the outer circumference of the tubular portion, and the washer (10) is located between the belleville spring (15) and the bolt (14).

6. The torsion limited electronic spreader according to claim 2, wherein the flange portion and the side of the upper holder (9) adjacent to the sprocket wheel (17) are provided with friction plates (18).

7. The torsion limited electronic spreader according to claim 6, wherein the flange portion and the side of the upper holder (9) adjacent to the sprocket wheel (17) are each provided with an annular groove (20), the friction plates (18) are annular in shape, and the friction plates (18) are arranged in the annular grooves (20).

8. The torsion limiting electronic spreader according to claim 7, wherein the annular groove (20) is provided with anti-slip protrusions on its inner wall.

9. The torsion-limiting electronic hanger according to claim 2, wherein at least one side of the chain wheel (17) is provided with a limiting groove (13), the limiting groove (13) is annular and is coaxially arranged with the tubular portion, a positioning ring (12) matched with the limiting groove (13) is slidably arranged in the limiting groove (13), and the positioning ring (12) is fixedly connected with the flange portion or the upper clamping seat (9).

10. The torsion-limiting electronic spreader of claim 3, wherein the second end of the tubular portion is provided with external threads on the outer circumference thereof, and the harness (11) is provided with internal threads on the inner side wall thereof, and the tubular portion is threadedly coupled with the harness (11).