CN115849228B - High-reliability steel wire rope and steel strand traction device and method - Google Patents

Abstract

The invention provides a traction device and a traction method for a high-reliability steel wire rope and a steel strand, comprising a mounting seat, wherein a locking sleeve and an inner joint are arranged in the mounting seat; the inner wall of the mounting seat is provided with a base body, outer sleeves are respectively arranged on two sides of the base body, the locking sleeve and the inner connector are limited by the limiting parts on the outer sleeves, at least the inner connector is not limited by rotation, namely, the rotation freedom degree of the inner connector is not limited, the inner connector can synchronously rotate along with the traction head, the inner connector and the limiting parts are in rotary fit, and the limiting parts only limit the radial movement of the inner connector and do not limit the rotation of the inner connector, so that the locking sleeve and the inner connector can axially move in a limited space. The invention has reasonable structural design, convenient operation of fixing the part to be towed and high use reliability.

Description

High-reliability steel wire rope and steel strand traction device and method

Technical Field

The invention belongs to the technical field of tractor assembly, and particularly relates to a high-reliability steel wire rope and steel strand traction device and method.

Background

In building construction processes such as buildings, roads and bridges, pre-stress steel strands are required to be straightened and penetrate into tunnels or pipelines, the penetrating device in the prior art is mainly divided into an integrated structure and a combined structure, the assembling process of each part of the penetrating device of the combined structure is complex, the fixing operation of the to-be-pulled piece is complex, time and labor are wasted, the connection stability of the to-be-pulled piece is not easy to guarantee, the risk that the to-be-pulled piece falls off in the operation process exists, particularly when the pipelines have slopes or turns, once the to-be-pulled piece falls off or is jammed, the working efficiency is seriously influenced, if the integrated structure penetrating device is used for fixing the to-be-pulled piece, the problem that the to-be-pulled piece is easily separated is also existed in the combined penetrating device, if the to-be-pulled piece is directly welded and fixed at the tail end of the steel strands is difficult to recycle under the premise, complex polishing and reprocessing is required, manpower and material resources are required to be used in the process, and the penetrating device cannot completely recover the original use performance is not required to be improved, and the practical use effect is not necessary to be improved.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a high-reliability steel wire rope and steel strand traction device and method.

In order to solve the technical problems, the technical scheme of the invention is realized as follows:

the high-reliability steel wire rope and steel strand traction device comprises a mounting seat, wherein a locking sleeve and an inner joint are arranged in the mounting seat, a working head is inserted into the inner side of the locking sleeve, a traction head is detachably arranged on the inner joint, and the connection part of the traction head and the inner joint is covered by the mounting seat;

the inner wall of the mounting seat is provided with a base body, outer sleeves are respectively arranged at two sides of the base body, the locking sleeve and the inner joint are respectively arranged at two sides of the base body and are limited by a limiting part on the outer sleeve, at least the inner joint is not limited by rotation, namely, the rotation freedom degree of the inner joint is not limited, the inner joint can synchronously rotate along with the traction head, the inner joint is in rotary fit with the limiting part, and the limiting part only limits the radial movement of the inner joint and does not limit the rotation of the inner joint, so that the locking sleeve and the inner joint axially move in a limited space;

the working head comprises an intermediate body, a clamping part, a locking part and a locking part, wherein the clamping part is arranged on one side of the intermediate body, facing the locking sleeve, and the locking part is arranged on one side of the intermediate body, the traction piece is fixed by the locking part;

an inner joint movable space is reserved between the base body and a limiting part for limiting the inner joint; a working head movable space is reserved between the locking sleeve and the traction head, and a buffer space is reserved in the accommodating cavity of the traction head.

Further, the working head clamping part, the intermediate body and the locking part are of an integrated structure.

Furthermore, the outer wall of the clamping part is in a cone-shaped structure, and a plurality of clamping gap adjusting slits are formed in the clamping part along the axial direction of the working head.

Further, a plurality of locking clearance adjustment slits are formed in the locking portion along the axial direction of the working head.

Further, an external thread structure is provided on the locking portion, and a locking member is screwed on the external thread structure.

Further, the traction head is provided with a containing cavity towards one side of the working head, and an end cap fixed at the tail end of the part to be pulled is arranged in the containing cavity.

Further, the both ends of mount pad are equipped with the several guide roll respectively, and each guide roll outer fringe all protrudes in the mount pad, and is preferred, all protrudes in the mount pad in mount pad axial and radial direction, has improved the smoothness of threading process, avoids taking place the jamming.

Further, the several guide rolls that each end of mount pad was installed all set up with the mount pad axis as the center equipartition, and the guide roll is installed in the roller frame, and the roller frame passes through the linking arm and is connected with the mount pad.

Further, the connecting arm is made of spring steel.

The high-reliability steel wire rope and steel strand traction method is realized based on the traction device and comprises the following steps of:

the working head is arranged in a mounting seat provided with a locking sleeve and an inner joint;

the tail end of the piece to be pulled stretches into the mounting seat, the piece to be pulled passes through the locking sleeve and then is inserted into the working head, and the tail end of the piece to be pulled is exposed out of the locking part of the working head;

fixing an end cap at the tail end of the piece to be pulled, and then pulling the piece to be pulled towards the locking sleeve side, so that the end cap is propped against the outer end face of the locking part, and the clamping part is inserted into the locking opening of the locking sleeve;

the locking part is locked by the locking piece, so that the piece to be pulled and the working head are fixed;

the traction head is arranged on the inner joint, and a buffer space of the end cap is reserved in the traction head accommodating cavity;

then, the traction rope is hung on the traction head, and the traction operation can be performed.

The invention has the advantages and positive effects that:

in the invention, the part to be pulled is locked and fixed by the working head locking part, and the working head clamping part is tightened by the reaction force of the locking sleeve in the pulling operation process, so that the part to be pulled is further clamped and fixed, and the reliability of the connection of the part to be pulled is greatly improved.

Drawings

FIG. 1 is a schematic view of the structure created by the present invention;

FIG. 2 is a schematic view of the working head of FIG. 1 in a mated state with a base body;

FIG. 3 is a schematic view of the structure of the inventive work head;

FIG. 4 is a schematic view of the working head of the present invention with a retaining member attached;

FIG. 5 is a schematic illustration of FIG. 1 with the working head and traction head removed;

FIG. 6 is a schematic view of an inner joint in accordance with the present invention;

FIG. 7 is a left side view of FIG. 6;

FIG. 8 is a cross-sectional view of the base body portion of the mount of the present invention;

FIG. 9 is a schematic view of the present invention when the slot on the base has a notch structure;

FIG. 10 is a schematic view of the working head of the present invention shown inserted into a piece to be connected;

FIG. 11 is a schematic view of the invention with the work head inserted into the piece to be connected and the end cap secured to the end of the piece to be connected;

FIG. 12 is a schematic view of the present invention with the traction head mounted to the work head and the traction head pulled;

FIG. 13 is a schematic view of a mounting base with guide rollers in accordance with an embodiment of the present invention;

FIG. 14 is a schematic view of a guide roller portion in an inventive embodiment of the present invention;

FIG. 15 is a schematic view of the nipple in mated condition with the base body in accordance with the present invention;

fig. 16 is a schematic view of the working head and traction head in a direct connection in accordance with an embodiment of the present invention.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

In the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.

Specific embodiments of the invention will be described in detail below.

The utility model provides a draw gear of high reliability wire rope and steel strand wires, as shown in fig. 1 through 15, including mount pad 1, be equipped with lock sleeve 2 and nipple 3 in the mount pad, lock sleeve inboard cartridge has work head 4, detachably installs traction head 5 on the nipple, be equipped with the otic placode 27 that is used for tying the haulage rope on the traction head, pull connecting hole 28 has been seted up on the otic placode, and the connecting portion of traction head and nipple is covered by the mount pad, i.e. the mount pad is as each part installation base member, simultaneously, still form the protection to inside each part, the interference that does not have too many part appearance structures when making the traction operation, can also avoid the part to connect the position to receive the influence of obstacle in the operating mode and take place the jamming, consequently, this draw gear wholeness is good, the trafficability is strong, the reliability is high in use. It should be emphasized that the drawings of the present invention are only schematic representations of product structures for clearly showing the connection and positional relationships, and that the standard dimensions (including but not limited to the inner diameter, the outer diameter, and the length of each portion) of the mounting seat may be designed according to practical situations, and will not be repeated herein.

The inner wall of the mounting seat is provided with a base body 6, outer sleeves 7 are respectively arranged on two sides of the base body, the locking sleeve and the inner joint are respectively arranged on two sides of the base body and are limited by a limiting part on the outer sleeve, at least the inner joint is not limited by rotation, namely, the rotation freedom degree of at least the inner joint is not limited, and the locking sleeve and the inner joint can synchronously rotate along with the traction head. The lock sleeve is limited by the lock sleeve limiting part 8, the inner joint is in running fit with the inner joint limiting part 9, and the inner joint limiting part only limits the radial movement of the inner joint and does not limit the rotation of the inner joint, so that the lock sleeve and the inner joint both axially move in a limited space, namely, the axial displacement of the lock sleeve and the inner joint is limited, and the lock sleeve and the inner joint can only move in a certain range.

In an alternative embodiment, as shown in fig. 6, the outer wall of the inner joint is provided with an annular clamping groove 30, the width of the annular clamping groove is larger than that of the limiting part of the inner joint, and the inner joint is in sliding fit with the limiting part of the inner joint, so that the inner joint has a movable space along the axial direction, the requirement of forward pulling or backward retracting action of the traction head is met, and meanwhile, the installation and the disassembly of the traction head are also facilitated.

For example, each of the above-mentioned limiting portions may be manufactured by punching, for example, a lock sleeve is placed in an outer sleeve at one side of the base body, and then the lock sleeve limiting portion is punched and formed, and the lock sleeve is limited between the lock sleeve limiting portion and the base body; and (3) placing the inner joint into the outer sleeve at the other side, stamping and forming an inner joint limiting part, and limiting the inner joint between the inner joint limiting part and the base body.

The working head comprises an intermediate body 10, a clamping part 11 of the intermediate body on one side of the locking sleeve and a locking part 12 of the intermediate body on one side of the traction head, the traction piece is fixed by the locking part, when the traction head is pulled forwards, the working head can be subjected to the action force of pulling the traction piece 13 backwards, so that the clamping part is tightened in the locking sleeve, the tightening force is increased along with the increase of the pulling action force, namely, the more difficult the traction piece is pulled, the larger the action force required by the traction head is, and the larger the action force of the traction piece is clamped by the clamping part correspondingly, so that the effect similar to self-locking is achieved. Generally, the working head clamping part, the intermediate body and the locking part are integrally formed.

In an alternative embodiment, a plurality of locking clearance adjustment slits 21 are formed in the locking portion along the axial direction of the working head. The locking part is provided with an external thread structure, and the locking part 22 is screwed on the external thread structure, and the locking part can be a nut generally. When the locking piece is screwed, the locking clearance adjustment seam can be correspondingly reduced, so that each petal of the locking part is mutually tightened, and the piece to be pulled is further fixed. The inner wall of the locking part can be provided with a convex structure identical to that of the clamping part by a person skilled in the art so as to improve the reliability of the fixed tractor. Of course, the protruding structure can be adaptively designed to be large in protruding height close to one side of the intermediate body according to the deformation amount requirement during actual fastening, the height of the protruding structure gradually decreases from the intermediate body to one side of the tail end of the locking part, and when the locking part is tightened, each protruding part bites the piece to be pulled at the same time, so that the reliability of connection and fixation is greatly improved.

The middle body can be processed into a polygonal column structure, and the inner wall of the base body is processed into a polygonal inner hole 23 matched with the shape of the polygonal column structure, for example, the middle body is processed into a hexagonal column structure, and the inner hole of the base body is processed into a hexagonal hole matched with the hexagonal column structure.

In an alternative embodiment, in order to further improve the reliability of the connection of the element to be towed, the aforementioned towing head is provided with a housing cavity 32 towards the working head, and an end cap 29 fixed at the end of the element to be towed is provided in the housing cavity, that is, in the event of failure of the locking element, the end cap can form an effective fixing function to avoid the element to be towed from falling out, and of course, the end cap is not a necessary structural component, and only under the working condition of high-speed and large towing force, the end cap is considered to be arranged, and is not required to be arranged at the end of the element to be towed. By way of example, the end face may be welded (e.g., spot welded) to secure the end of the member to be towed.

The high-reliability steel wire rope and steel strand traction method is realized based on the traction device and comprises the following steps of:

the working head is arranged in a mounting seat provided with a locking sleeve and an inner joint;

the tail end of the piece to be pulled stretches into the mounting seat, and is inserted into the working head after passing through the locking sleeve, and the tail end of the piece to be pulled is exposed out of the locking part of the working head;

fixing an end cap at the tail end of the to-be-towed piece (the end cap can be fixed by welding and fixing the end cap at the tail end of the to-be-towed piece), and then pulling the to-be-towed piece outwards to enable the end cap to prop against the outer end face of the locking part and enable the clamping part to be inserted into the locking opening of the locking sleeve; it should be noted that even under the mode of welding the end cap and the tail end of the piece to be towed, when the towing device is recycled, only the end cap needs to be cut down, the cost of the end cap is extremely low, and when the end cap is used next time, a new end cap can be adopted. Even when the traction force is small, the end cap is not needed, so that the problems of welding and disassembly are avoided.

The locking part is locked by the locking part to fix the traction part and the working head, and the middle body and the base body are kept in a matched state as far as possible when the locking part is locked, so that the working head is prevented from rotating randomly, the locking part is influenced to be screwed conveniently and rapidly, and of course, a person skilled in the art can fix the working head by adopting other tools or tools, so long as the locking part is conveniently and rapidly locked, and the description is omitted;

the traction head is arranged on the inner joint, when the traction part to be pulled is worn and sent, the working head is pulled by the traction part to be pulled, so that the (polygonal inner hole) of the base body is clamped with the intermediate body, and the traction part to be pulled can be effectively prevented from rotating randomly in the wearing and sending process. When the traction head is installed, the traction head can be used for propping against the inner joint inwards, so that the inner joint is close to the base body, the traction head is properly rotated, a clamping block on the inner joint is matched with a clamping groove on the base body, the inner joint is limited to rotate randomly, the traction head is screwed into the inner joint conveniently, and meanwhile, a buffer space of an end cap is reserved in the traction head accommodating cavity; the traction rope is hung on the traction head, so that traction operation can be performed.

When encountering high-low fluctuation or direction change (turning) which is not easy to pass, the traction head can be loosened and tensioned in a clearance way, so that better passing performance is obtained. Of course, the traction head can be pushed inwards (to one side of the locking sleeve), so that the traction head and the inner joint are retracted inwards by a certain length into the mounting seat, and the traction device can obtain better positions and spaces so as to be convenient for passing through a narrow channel, a direction change channel or a channel with fluctuation in height. The operation is favorable for the traction device to drive the part to be towed to move, and the traction operation mode and the operation method are expanded and extended due to the structural improvement, so that the passing performance is effectively improved.

It should be noted that, along with screwing the installation traction head, if the nipple also produces the rotation, then the fixture block is when the draw-in groove, can realize the cooperation of fixture block and draw-in groove, in order to be convenient for aim at the income position fast, can be greater than the fixture block size with the opening of draw-in groove, because when screwing the installation traction head, as long as the fixture block can block in the draw-in groove can, do not necessarily require fixture block and draw-in groove size to be unanimous completely.

It should be noted that, this draw gear is not only applicable to the traction and wearing of steel strand wires and send, also is applicable to the traction, wearing of wire rope and send, only can adapt to the steel strand wires generally to current conveyer, and in the engineering work progress, there is wire rope to lay or wear the needs of establishing, current steel strand wires wears to send the ware and can not fine adaptation wire rope to wear to send, and uses this draw gear can be fine solved the problem of commonality, the connection of steel strand wires, wire rope is fixed and traction operation is all indiscriminate. The construction site does not need to be provided with a plurality of retractors, is convenient for construction management and specific construction operation, and has good use effect.

Because the inner joint movable space 14 is reserved between the base body and the inner joint limiting part, the inner joint can be adaptively adjusted in position within the movable space according to the force (direction) change of traction operation. A working head movable space 15 is reserved between the locking sleeve and the traction head, the working head can be moved and adjusted in a certain range by the working head movable space, the self-locking or anti-loosening is realized by adapting to the change of traction pulling acting force, a buffer space 16 is reserved in a containing cavity of the traction head, and the movable space is reserved for the working head and an end cap at the tail end of a piece to be drawn.

It should be noted that, because the clamping portion of the working head has a certain elasticity, and the outer edge of the clamping portion is in a cone-shaped structure, the working head is not blocked with the locking opening of the locking sleeve under the action of a tensile force under normal conditions. Of course, in order to facilitate the working head to be separated from the locking sleeve, a pull ring can be arranged on one side of the end cap, which is different from the working head, or a pulling hole is formed on the locking part along the radial direction so as to separate the working head from the locking sleeve, and a pulling structural form is designed by a person skilled in the art according to actual needs, so that the description is omitted.

An inner thread structure 31 is arranged on the inner wall of one outward end of the inner joint, an outer thread section matched with the inner thread structure of the inner joint is arranged on the traction head, and the inner joint is screwed in through the outer thread section, so that the two are fixed. In an alternative embodiment, in order to facilitate the installation of the traction head, the nipple is prevented from rotating randomly when the traction head is screwed on the nipple, a plurality of clamping blocks 17 can be arranged on the end face of one side of the nipple towards the base body, a plurality of clamping grooves 18 are correspondingly arranged on the base body, when the nipple is close to the base body and the clamping blocks are inserted into the clamping grooves, the nipple can be limited by the base body (mounting seat) and does not rotate any more, and the traction head can be screwed on the nipple at the moment. When the piece to be pulled is pulled, the inner joint is pulled outwards by the pulling head, so that the clamping block is separated from the clamping groove, and even if the pulling head rotates, the inner joint can synchronously rotate with the pulling head. Of course, the person skilled in the art can also use the conventional thread pair anti-loosening method to further anti-loosening treatment. In practice, the traction head does not frequently rotate in the process of traction and conveying the part to be towed, and the inner joint and the traction head have synchronous rotation, so that the situation that the traction head is separated from the inner joint is avoided, and the anti-loosening treatment is also feasible.

The outer wall of the clamping part is in a cone-shaped structure, a plurality of clamping gap adjusting slits 19 are formed in the clamping part along the axial direction of the working head, and the working head tightly pushes against the locking sleeve. The clamping part of the working head is pressed in the locking opening 20 of the locking sleeve, and the larger the pressing force is, the larger the clamping force of the clamping part to the traction piece is. In an alternative embodiment, a plurality of protrusions may be provided on the inner wall of each split of the gripping portion, so as to form a structure similar to teeth, and the gripping portion may be capable of "biting" the member to be pulled when gripping the member to be pulled, and the greater the gripping portion, the greater the biting force.

The two ends of the mounting seat are respectively provided with the plurality of guide rollers 24, the outer edges of the guide rollers are protruded out of the mounting seat, and preferably, the guide rollers are protruded out of the mounting seat in the axial direction and the radial direction of the mounting seat, namely, the guide rollers can prevent the outer circumferential surface of the mounting seat from rubbing and the two ends from rubbing to the greatest extent, and are blocked when the wires are pulled by rubbing, so that the smoothness of the traction conveying process is improved, and the passing performance of a piece to be pulled and a traction device is better.

The guide rollers mounted at each end of the mounting seat are uniformly distributed by taking the axis of the mounting seat as the center, and are mounted on a roller frame 25, and the roller frame is connected with the mounting seat through a connecting arm 26. In general, the connecting arm is made of spring steel, so that the connecting arm has a certain deformation amount, can be well supported in a transitional manner by utilizing the guide roller at the bent angle, and can greatly improve the trafficability of the traction device by combining the change and adjustment of the advancing direction.

To further simplify the assembly operation and to further simplify the structure of the present traction device, the working head may take the form of a design directly connected to the traction head, in an alternative embodiment, as shown in fig. 16, an internal thread section is provided on the side wall of the traction head receiving cavity, and when the traction head is mounted, the external thread section is connected to the nipple, while at the same time, the internal thread section cooperates with the external thread structure of the locking section of the working head, so that the traction head is mounted and fixed to the nipple and the working head at the same time.

Because the intermediate body can be matched with the base body, the clamping blocks on the inner joint body are matched with the clamping grooves of the base body, the random rotation of the structural member is prevented to serve as a structural basis, the synchronous fixing of the traction head, the working head and the inner joint can be conveniently realized, in fact, the intermediate body is matched with the inner hole of the base body, the intermediate body is not required to be completely inserted into the inner hole of the base body, the working head can be limited to rotate by the base body as long as the intermediate body is partially inserted into the inner hole of the base body to realize the matching, and similarly, the matching between the clamping blocks can be realized when the clamping blocks are partially disassembled into the clamping grooves, so that the aim of limiting the rotation of the inner joint by the base body is fulfilled. Of course, as a further improvement scheme of the traction device, the working head and the traction head can be directly connected by a person skilled in the art according to actual needs or by adopting other structural forms, and the description is omitted here.

In the invention, the part to be pulled is locked and fixed by the working head locking part, and the working head clamping part is tightened by the reaction force of the locking sleeve in the pulling operation process, so that the part to be pulled is further clamped and fixed, and the reliability of the connection of the part to be pulled is greatly improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. A high reliability wire rope and steel strand wires draw gear, its characterized in that: the device comprises a mounting seat, wherein a locking sleeve and an inner joint are arranged in the mounting seat, a working head is inserted into the inner side of the locking sleeve, a traction head is detachably arranged on the inner joint, and the connecting part of the traction head and the inner joint is covered by the mounting seat;

the inner wall of the mounting seat is provided with a base body, two sides of the base body are respectively provided with an outer sleeve, the locking sleeve and the inner joint are respectively arranged at two sides of the base body and are limited by a limiting part on the outer sleeve, and at least the inner joint is not limited by rotation;

the working head comprises an intermediate body, a clamping part, a locking part and a locking part, wherein the clamping part faces one side of the locking sleeve, the intermediate body faces one side of the traction head, the traction piece to be pulled is fixed by the locking part, and when the traction head is pulled forwards, the working head is pulled backwards by the traction piece to be pulled, so that the clamping part is tightened in the locking sleeve;

an inner joint movable space is reserved between the base body and a limiting part for limiting the inner joint; a working head movable space is reserved between the locking sleeve and the traction head, and a buffer space is reserved in the accommodating cavity of the traction head.

2. The high-reliability steel wire rope and steel strand traction device according to claim 1, wherein: the working head clamping part, the intermediate body and the locking part are of an integrated structure.

3. The high-reliability steel wire rope and steel strand traction device according to claim 1, wherein: the outer wall of the clamping part is of a conical structure, and a plurality of clamping gap adjusting slits are formed in the clamping part along the axial direction of the working head.

4. The high-reliability steel wire rope and steel strand traction device according to claim 1, wherein: the locking part is provided with a plurality of locking clearance adjustment slits along the axial direction of the working head.

5. The high-reliability wire rope and strand pulling device according to claim 4, wherein: the locking part is provided with an external thread structure, and a locking piece is screwed on the external thread structure.

6. The high-reliability steel wire rope and steel strand traction device according to claim 1, wherein: the traction head is provided with a containing cavity towards one side of the working head, and an end cap fixed at the tail end of the part to be pulled is arranged in the containing cavity.

7. The high-reliability steel wire rope and steel strand traction device according to claim 1, wherein: the two ends of the mounting seat are respectively provided with a plurality of guide rollers, and the outer edges of the guide rollers protrude out of the mounting seat.

8. The high-reliability steel wire rope and steel strand traction device according to claim 1, wherein: the guide rollers arranged at each end of the mounting seat are uniformly distributed by taking the axis of the mounting seat as the center, and are arranged on a roller frame which is connected with the mounting seat through a connecting arm.

9. The high reliability wire rope and strand pulling apparatus of claim 8, wherein: the connecting arm is made of spring steel.

10. A method for pulling a high-reliability steel wire rope and a steel strand, which is realized based on the pulling device as claimed in any one of claims 1 to 9, and is characterized by comprising the following steps:

the working head is arranged in a mounting seat provided with a locking sleeve and an inner joint;

the tail end of the piece to be pulled stretches into the mounting seat, the piece to be pulled passes through the locking sleeve and then is inserted into the working head, and the tail end of the piece to be pulled is exposed out of the locking part of the working head;

fixing an end cap at the tail end of the piece to be pulled, and then pulling the piece to be pulled towards the locking sleeve side, so that the end cap is propped against the outer end face of the locking part, and the clamping part is inserted into the locking opening of the locking sleeve;

the locking part is locked by the locking piece, so that the piece to be pulled and the working head are fixed;

the traction head is arranged on the inner joint, and a buffer space of the end cap is reserved in the traction head accommodating cavity;

and (5) hanging a traction rope on the traction head to carry out traction operation.

Images