CN218879264U

CN218879264U - Steel wire rope anti-twisting tail section for tower crane

Info

Publication number: CN218879264U
Application number: CN202222835302.3U
Authority: CN
Inventors: 刘志华
Original assignee: Jiangsu Jiepin Environmental Protection Technology Co ltd
Current assignee: Jiangsu Jiepin Environmental Protection Technology Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-04-18
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a steel wire rope anti-twisting end section for a tower crane, which comprises a crane bracket, wherein one side of the crane bracket is provided with a fixed plate, one side of the fixed plate is provided with an anti-twisting component, one side of the fixed plate is provided with a fixed seat, and the anti-twisting component comprises two fixed blocks, an anti-twisting block and a limit nut; the utility model discloses simple structure, reasonable in design, because two fixed block symmetric welding have the back shaft, and the both ends of preventing turning round the piece are rotated through seting up the guiding hole and being connected with the back shaft, the in-process zhongzhong that unreels at hoist wire rope winds in the outside of preventing turning round the piece, thereby it takes place rotatoryly to drive the piece of preventing turning round, guarantee that wire rope can not twist round the knot in-process receiving and unreeling, the stop nut who is located back shaft one end can prevent that the piece of preventing turning round from taking place to drop with two fixed blocks, and be provided with width adjustment mechanism on the piece of preventing turning round, be convenient for adapt to the wire rope of different diameters.

Description

Steel wire rope anti-twisting tail section for tower crane

Technical Field

The utility model relates to a hoist corollary equipment technical field specifically is a last festival of preventing turning round of wire rope for tower crane.

Background

The crane is used as large hoisting equipment for hoisting objects with large weight, wherein a steel wire rope with large bearing capacity is used. The steel wire rope is twisted due to a load heavy object in the using process, if the load is too heavy, the internal pressure of the steel wire rope cannot be released, the steel wire rope can be broken, and potential safety hazards exist in production.

The defects of the prior art are as follows:

the existing anti-twisting end sections adopt a roller to meet the anti-twisting requirement on a steel wire rope of a crane, the steel wire rope anti-twisting end section is used for a steel wire rope of a tower crane in a patent No. CN202729652U, the stress in the steel wire rope is quickly released by arranging an anti-twisting device, the main structure of the novel anti-twisting device is the roller, and the position deviation is caused by small contact surface and no limiting device which is easy to slide in the process of winding and unwinding the steel wire rope, so that the service life of the steel wire rope is shortened;

secondly, no device capable of adapting to steel wire ropes with different diameters is arranged in the anti-twisting tail section of the steel wire rope of the existing crane, so that the application range is small, and the replacement cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a last festival of preventing turning round of wire rope for tower crane to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a steel wire rope torsion-proof end section for a tower crane comprises a crane support, wherein a fixing plate is arranged on one side of the crane support, a torsion-proof assembly is arranged on one side of the fixing plate, and a fixing seat is arranged on one side of the fixing plate;

the anti-twist component comprises:

the two fixing blocks are arranged on one side of the fixing plate, and support shafts are symmetrically arranged on the two fixing blocks;

the anti-twist device comprises an anti-twist block, a support shaft and a width adjusting mechanism, wherein two ends of the anti-twist block are rotatably connected with the support shaft through guide holes, two sides of the anti-twist block are respectively provided with a cavity, one end of the support shaft extends into the cavity, and the outer side of the anti-twist block is provided with the width adjusting mechanism;

and the limiting nut is in threaded connection with one end of the supporting shaft in the cavity.

Preferably, the width adjustment mechanism includes:

the two bearings are sleeved on the outer sides of the anti-torsion blocks, and inner rings of the two bearings are connected with the anti-torsion blocks in a sliding mode;

the screw rod is arranged inside the fixed seat, and a first thread and a second thread are arranged on the outer surface of the screw rod in a mirror image manner;

and the two ball nuts are respectively in threaded connection with the first thread and the second thread, and one sides of the two ball nuts are respectively connected with the outer rings of the two bearings.

Preferably, the two ball nuts are connected with the outer rings of the two bearings through the connecting rods, one side, close to the anti-twisting block, of the fixing seat is provided with a sliding groove, and the connecting rods are connected with the sliding groove in a sliding mode.

Preferably, the fixing component comprises a connecting plate, and the connecting plate is connected with the two fixing blocks through bolts respectively.

Preferably, the anti-twist block is made of HT20-40 cast iron, and the surface of the anti-twist block is provided with a guide spiral groove.

Preferably, the screw rod is provided with a rotating nut at the outer side of the fixed seat.

Preferably, a plurality of balls are arranged at the joint of the anti-twisting block and the supporting shaft.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the steel wire rope torsion-proof tail section for the tower crane is provided with the torsion-proof assembly, the torsion-proof assembly comprises two fixed blocks, a torsion-proof block and a limiting nut, a supporting shaft is symmetrically welded on the two fixed blocks, and two ends of the torsion-proof block are rotatably connected with the supporting shaft through guide holes, so that the torsion-proof block is wound on the outer side of the torsion-proof block in the process of reeling and unreeling a steel wire rope of the crane, the torsion-proof block is driven to rotate, and the steel wire rope is prevented from torsion knotting in the process of reeling and unreeling;

2. this a wire rope prevents turning round end section for tower crane, through being provided with width adjustment mechanism, width adjustment mechanism is including two bearings, lead screw and two ball nut, the lead screw rotates, because two ball nut that are located the lead screw outside respectively with opposite direction's first screw thread and second screw thread threaded connection, two ball nut take place the relative motion, drive from this and take place to slide in the outside of preventing turning round the piece with two fixed bearings in two ball nut one sides, make two bearings be close to each other and adapt to the wire rope of different diameters according to the actual demand, thereby accomplish the width regulation.

Drawings

Fig. 1 is a front view of a fixing plate of the present invention;

fig. 2 is an overall front view of the present invention;

FIG. 3 is a top view of the anti-twisting mechanism of the present invention;

fig. 4 is a side view of the fixing plate of the present invention;

fig. 5 is an enlarged schematic view of a in fig. 1 according to the present invention.

In the figure: 1. a crane support; 11. a fixing plate; 12. a fixed seat; 13. a connecting plate; 2. an anti-twist component; 21. two fixed blocks; 211. a support shaft; 22. an anti-twist block; 221. a cavity; 23. a limit nut; 3. a width adjustment mechanism; 31. two bearings; 32. a screw rod; 321. a first thread; 322. a second thread; 33. two ball nuts; 331. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixed connections, arrangements, detachable connections, arrangements, or integral connections and arrangements. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-5, the utility model provides a steel wire rope torsion-proof end section technical solution for tower crane: the utility model provides a wire rope torsion-proof end section for tower crane, including crane support 1, fixed plate 11 has been welded to one side of crane support 1, torsion-proof subassembly 2 is installed to one side of fixed plate 11, fixing base 12 has been welded to one side of fixed plate 11, torsion-proof subassembly 2 is including two fixed blocks 21, torsion-proof piece 22 and stop nut 23, two fixed blocks 21 are fixed in one side of fixed plate 11, two fixed block 21 symmetric welding have a back shaft 211, torsion-proof piece 22's both ends are rotated with back shaft 211 through seting up the guiding hole and are connected, cavity 221 has all been seted up to torsion-proof piece 22's both sides, the one end extension of back shaft 211 is to the inside of cavity 221, width adjustment mechanism 3 is installed in torsion-proof piece 22's the outside, stop nut 23 and back shaft 211 are at the inside one end threaded connection of cavity 221, because two fixed block 21 symmetric welding have a back shaft 211, and torsion-proof piece 22's both ends are rotated with back shaft 211 through seting up the guiding hole and are connected, it takes place around torsion-proof piece 22's the outside torsion-proof piece 22 in the in-proof piece 22 in-process of unreeling of crane wire rope, thereby it takes place the rotation to drive torsion-proof piece 22 to drive torsion-proof piece to take place the rotation, guarantee wire rope unreel can prevent that the wire rope unreel in-proof piece 211, guarantee that wire rope unreel knot, stop nut 23 and take place two fixed block 21 from taking place.

The width adjusting mechanism 3 includes two bearings 31, a screw 32 and two ball nuts 33, the two bearings 31 are all sleeved on the outer side of the anti-twist block 22, inner rings of the two bearings 31 are slidably connected with the anti-twist block 22, the screw 32 is installed inside the fixing base 12, a first thread 321 and a second thread 322 are arranged on the outer surface of the screw 32 in a mirror image manner, the two ball nuts 33 are respectively in threaded connection with the first thread 321 and the second thread 322, one sides of the two ball nuts 33 are respectively welded with outer rings of the two bearings 31, the screw 32 is rotated, as the two ball nuts 33 located on the outer side of the screw 32 are respectively in threaded connection with the first thread 321 and the second thread 322 in opposite directions, the two ball nuts 33 move in opposite directions, and therefore the two bearings 31 fixed on one sides of the two ball nuts 33 are driven to slide on the outer side of the anti-twist block 22, the two bearings 31 are made to approach each other to adapt to steel wire ropes with different diameters according to actual requirements, and thus width adjustment is completed.

Two ball nuts 33 pass through the outer lane welding of welding connecting rod 331 and two bearings 31, and the spout 121 has been seted up to the fixing base 12 one side that is close to the block 22 of preventing turning round, and connecting rod 331 and spout 121 sliding connection are convenient for two ball nuts 33 drive two bearings 31 and carry out the width control.

The fixing component comprises a connecting plate 13, the connecting plate 13 is connected with the two fixing blocks 21 through bolts respectively, and the connecting plate 13 is connected with the two fixing blocks 21, so that the stability between the two fixing blocks 21 and the fixing plate 11 is enhanced conveniently.

The anti-twist block 22 is made of HT20-40 cast iron, and the surface of the anti-twist block 22 is provided with a guide spiral groove, so that the service life of the anti-twist block 22 is prolonged, and the steel wire rope of the crane can be conveniently guided.

The screw 32 is provided with a rotary nut at the outer side of the fixed seat 12, so that the width can be conveniently adjusted by rotating the screw 32.

A plurality of balls are placed at the joint of the anti-twisting block 22 and the supporting shaft 211, so that the friction between the anti-twisting block 22 and the supporting shaft 211 in the rotating process is reduced, and the service life is prolonged.

The working principle of the utility model is as follows:

when the steel wire rope torsion-proof end section for the tower crane is used, firstly, the steel wire rope is encircled outside the torsion-proof block 22, a guide spiral groove is formed in the surface of the torsion-proof block 22 so as to guide the steel wire rope of the crane, then the screw rod 32 is rotated by twisting the rotary nut, two ball nuts 33 positioned on the outer side of the screw rod 32 are respectively in threaded connection with a first thread 321 and a second thread 322 which are opposite in direction, and the two ball nuts 33 move oppositely, so that two bearings 31 fixed on one sides of the two ball nuts 33 are driven to slide on the outer side of the torsion-proof block 22, the two bearings 31 are mutually close to adapt to the diameter of the steel wire rope according to actual requirements, so that width adjustment is completed, then, the steel wire rope is wound and unwound, because the two fixing blocks 21 are symmetrically welded with the support shaft 211, and the two ends of the torsion-proof block 22 are rotatably connected with the support shaft 211 by forming guide holes, so that the torsion-proof block 22 is driven to rotate, the steel wire rope is ensured not to be knotted in the winding and unwinding process, and meanwhile, friction of the balls positioned between the torsion-proof block 22 and the support shaft 211 can be reduced, the service life is prolonged, and the torsion-proof block 23 positioned at one end of the support shaft can prevent the two fixing blocks 21 from falling off.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a last festival of preventing turning round of wire rope for tower crane, includes crane support (1), its characterized in that: a fixing plate (11) is arranged on one side of the crane support (1), an anti-twisting assembly (2) is arranged on one side of the fixing plate (11), fixing assemblies for mounting the anti-twisting assembly (2) are arranged at two ends of one side of the fixing plate (11), and a fixing seat (12) is arranged on one side of the fixing plate (11);

the anti-twist component (2) comprises:

the two fixing blocks (21) are arranged on one side of the fixing plate (11), and the two fixing blocks (21) are symmetrically provided with supporting shafts (211);

the anti-twist device comprises an anti-twist block (22), wherein two ends of the anti-twist block (22) are rotatably connected with a supporting shaft (211) through arranging guide holes, cavities (221) are respectively arranged on two sides of the anti-twist block (22), one end of the supporting shaft (211) extends into the cavities (221), and a width adjusting mechanism (3) is arranged on the outer side of the anti-twist block (22);

the limiting nut (23) is in threaded connection with one end of the supporting shaft (211) in the cavity (221).

2. The steel wire rope anti-twist stub for a tower crane according to claim 1, wherein:

the width adjusting mechanism (3) comprises:

the two bearings (31) are sleeved on the outer side of the anti-torsion block (22), and inner rings of the two bearings (31) are connected with the anti-torsion block (22) in a sliding manner;

the screw rod (32) is arranged inside the fixed seat (12), and a first thread (321) and a second thread (322) are arranged on the outer surface of the screw rod (32) in a mirror image manner;

the two ball nuts (33) are in threaded connection with the first thread (321) and the second thread (322) respectively, and one sides of the two ball nuts (33) are connected with outer rings of the two bearings (31) respectively.

3. The steel wire rope anti-twist stub for a tower crane according to claim 2, wherein: the two ball nuts (33) are connected with outer rings of the two bearings (31) through a connecting rod (331), a sliding groove (121) is formed in one side, close to the anti-torsion block (22), of the fixed seat (12), and the connecting rod (331) is connected with the sliding groove (121) in a sliding mode.

4. The steel wire rope anti-twist stub for a tower crane according to claim 1, wherein: the fixing assembly comprises a connecting plate (13), and the connecting plate (13) is connected with the two fixing blocks (21) through bolts respectively.

5. The steel wire rope anti-twist stub for a tower crane according to claim 1, wherein: the anti-twisting block (22) is made of HT20-40 cast iron, and a guide spiral groove is formed in the surface of the anti-twisting block (22).

6. The steel wire rope anti-twist stub for a tower crane according to claim 2, wherein: and a rotary nut is arranged on the outer side of the fixed seat (12) of the screw rod (32).

7. The steel wire rope anti-twist stub for a tower crane according to claim 1, wherein: and a plurality of balls are arranged at the joint of the anti-twisting block (22) and the support shaft (211).