CN214059654U - Rope changing device and engineering machinery - Google Patents

Abstract

The utility model provides a rope changing device and engineering machinery, wherein the rope changing device comprises a reel clamping mechanism, a driving mechanism and a pre-tightening mechanism, the reel clamping mechanism comprises a first clamping piece and a second clamping piece which are arranged oppositely, and one side of the first clamping piece opposite to the second clamping piece is used for detachably clamping a reel; one side of the first clamping piece, which is far away from the second clamping piece, is connected to the driving mechanism, and one side of the second clamping piece, which is far away from the first clamping piece, is connected to the pre-tightening mechanism. This trade rope device both can retrieve old rope, can install new rope again, has realized mechanized operation, reduces intensity of labour by a wide margin, and can provide the pretightning force in installing new rope, need not to recycle lifting hook and load and carries out extra pretension, has simplified and has traded the rope flow, labour saving and time saving.

Description

Rope changing device and engineering machinery

Technical Field

The utility model relates to an engineering machine tool equipment technical field especially relates to a trade rope device and engineering machine tool.

Background

In the hoisting operation, because often need ligature and pull the article, therefore the hoist and mount of hoist often need receive and release wire rope, along with the operating time and the intensity of hoist constantly increase, the wearing and tearing can take place gradually to hoist wire rope, after wearing and tearing to a certain extent, in order to guarantee the security of construction, need in time to change the wire rope of renewal. The existing rope changing mode is mainly finished manually, firstly, an old steel wire rope is released from a winch to be changed, and the old steel wire rope is directly placed on the ground manually; then, old steel wire ropes scattered on the ground are manually arranged and moved away by auxiliary equipment, so that new steel wire ropes are convenient to install; then, hoisting the new steel wire rope reel assembly by using auxiliary equipment, so that the new steel wire rope is conveniently released, and winding the new steel wire rope by using the winch to be replaced to perform rope winding action; then selecting a proper lifting hook, penetrating a new steel wire rope, and completely releasing the new steel wire rope by a crane lifting arm; and finally hoisting a proper load, and taking back the steel wire rope by the winch with the rope to be replaced to finish the pre-tightening of the steel wire rope.

The rope replacing mode adopts manual old rope collection, the mechanization degree is low, the labor intensity is high, at least 2-8 workers are needed, and the specific number of workers is different according to the diameter and the length of the steel wire rope; meanwhile, the old steel wire ropes scattered on the ground need to be sorted and transferred, so that the construction site is occupied, and time is consumed. In addition, when a new steel wire rope is installed, a proper lifting hook and a proper load are required to be prepared for pre-tightening the new steel wire rope, and the lifting hook and the lifting arm are penetrated for lifting, so that the whole process is complicated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a trade rope device and engineering machine tool for solve the trade among the prior art that the rope method mechanization degree is low, trade the complicated loaded down with trivial details, the defect that wastes time and energy of rope method.

The utility model provides a rope changing device, which comprises a reel clamping mechanism, a driving mechanism and a pre-tightening mechanism, wherein the reel clamping mechanism comprises a first clamping piece and a second clamping piece which are arranged oppositely, and one side of the first clamping piece opposite to the second clamping piece can detachably clamp a reel; one side of the first clamping piece, which deviates from the second clamping piece, is connected to the driving mechanism, and one side of the second clamping piece, which deviates from the first clamping piece, is connected to the pre-tightening mechanism.

According to the utility model provides a pair of trade rope device, first holder with the second holder all includes bottom plate and a plurality of edge the flexible clamping jaw that the circumference of bottom plate set up, the bottom plate can the centre gripping be in the ascending relative both sides of axial of reel, flexible clamping jaw can be followed the radial flexible of reel, just flexible clamping jaw's flexible end can detachably connect in the reel hub of reel.

According to the utility model provides a pair of trade rope device, flexible clamping jaw includes sleeve, flexible arm and retaining member, the sleeve rigid coupling in the bottom plate, the one end slidable ground of flexible arm connect in the sleeve, the other end detachably of flexible arm connect in the reel hub of reel, the retaining member can lock the sleeve with flexible arm.

According to the rope replacing device provided by the utility model, the first clamping piece is further fixedly connected with a first connecting shaft, one end of the first connecting shaft can extend into the drum body of the drum, and the other end of the first connecting shaft is connected with the driving mechanism; the second clamping piece is further fixedly connected with a second coupling shaft, one end of the second coupling shaft can extend into the barrel of the winding drum, and the other end of the second coupling shaft is connected with the pre-tightening mechanism.

According to the utility model provides a pair of trade rope device, actuating mechanism includes hydraulic motor, hydraulic motor's output shaft in first coupling shaft.

According to the utility model provides a pair of trade rope device, pretension mechanism includes the stopper, the stopper connect in the second coupling shaft.

According to the utility model provides a trade rope device, the stopper includes stopper base, braking clearance adjustment subassembly and two relative brake arms that set up, and the relative one side of two the brake arms is all installed the brake shoe, is equipped with brake bearing between two the brake shoes, brake bearing cup joints in the second coupling shaft; one end of the brake arm is rotatably connected to the brake base, the other end of the brake arm is connected to the brake clearance adjusting assembly, and the brake clearance adjusting assembly can adjust the distance between the two brake shoes.

According to the rope replacing device provided by the utility model, the brake clearance adjusting component comprises an adjusting sleeve and an adjusting rod inserted in the adjusting sleeve, and the adjusting rod can extend out or retract along the axial direction of the adjusting sleeve; the adjusting sleeve is rotatably connected to one of the brake arms, and the adjusting rod is rotatably connected to the other of the brake arms.

According to the utility model provides a trade rope device, still include base, first mount pad and second mount pad, the first holder with the actuating mechanism install in the first mount pad, the second holder with pretension mechanism install in the second mount pad; at least one of the first mount and the second mount is slidably connected to the base in an axial direction of the reel.

The utility model also provides an engineering machine tool, include as above-mentioned trade rope device.

The utility model provides a trade rope device and engineering machine tool, wherein trade the rope device and utilize reel fixture detachably to connect the reel, make the reel rotatory under actuating mechanism's drive, can also provide reverse pretightning force through pretension mechanism simultaneously. When the old rope is recovered, a first winding drum for recovering the old rope is connected by a winding drum clamping mechanism, the old rope of the rope winding drum to be replaced is connected to the first winding drum, then the first winding drum is driven by a driving mechanism to rotate to recover the old rope, and a pre-tightening mechanism is loosened to prevent the pre-tightening mechanism from providing pre-tightening force; when installing the new rope, lift off first reel earlier, change the second reel that is used for releasing the new rope, then connect the new rope on waiting to trade the rope reel, utilize and wait to trade the rotatory new rope of winding of rope reel, adjust pretension mechanism to pretension state, treat that to trade the rope reel and twine the new rope and provide opposite pretightning force. This trade rope device both can retrieve old rope, can install new rope again, has realized mechanized operation, reduces intensity of labour by a wide margin, and can provide the pretightning force in installing new rope, need not to recycle lifting hook and load and carries out extra pretension, has simplified and has traded the rope flow, labour saving and time saving.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a rope replacing device provided by the present invention;

fig. 2 is an installation schematic view of the winding drum clamping mechanism provided by the present invention clamping the winding drum;

fig. 3 is a schematic structural diagram of a brake provided by the present invention;

reference numerals:

1. a first clamping member; 11. A first coupling shaft; 12. A flange plate;

13. a base plate; 14. A telescopic clamping jaw; 141. A sleeve;

142. a telescopic arm; 143. A locking member; 2. A second clamping member;

21. a second coupling shaft; 3. A hydraulic motor; 4. A brake;

41. a brake base; 421. A first brake arm; 422. A second brake arm;

431. a first brake shoe; 432. A second brake shoe; 44. A brake bearing;

45. a brake shaft; 46. A brake clearance adjustment assembly;

461. an adjustment sleeve; 462. Adjusting a rod; 463. Adjusting a hand wheel;

5. a reel; 51. A barrel; 52. A spool hub;

6. a base; 7. A first mounting seat; 8. And a second mounting seat.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "first" and "second" are used for clearly indicating the numbering of the product parts and do not represent any substantial difference unless explicitly stated or limited otherwise. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may also be changed accordingly. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

It is to be understood that, unless otherwise expressly specified or limited, the term "coupled" is used broadly, and may, for example, refer to directly coupled devices or indirectly coupled devices through intervening media. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

As shown in fig. 1 to 3, an embodiment of the present invention provides a rope replacing device, including a reel clamping mechanism, a driving mechanism and a pre-tightening mechanism, the reel clamping mechanism includes a first clamping member 1 and a second clamping member 2 which are arranged relatively, and one side of the first clamping member 1 opposite to the second clamping member 2 is used for detachably clamping a reel 5, so that the reel 5 with different functions can be replaced conveniently. One side of the first clamping piece 1 departing from the second clamping piece 2 is connected to the driving mechanism, and one side of the second clamping piece 2 departing from the first clamping piece 1 is connected to the pre-tightening mechanism.

Specifically, as shown in fig. 1, in the embodiment of the present invention, a first clamping member 1 and a second clamping member 2 are symmetrically disposed, a left side of the first clamping member 1 is connected to a driving mechanism, and the driving mechanism may adopt an electric driving device, such as a motor, as required; or a hydraulic drive such as a hydraulic motor or the like. The driving mechanism may also adopt other forms of driving devices as long as the driving mechanism can output a rotational motion, and is not limited herein. The right side of the second clamping piece 2 is connected with a pre-tightening mechanism, the pre-tightening mechanism can be switched between a loosening state and a pre-tightening state, and when the pre-tightening mechanism is in the loosening state, pre-tightening force is not provided, so that the second clamping piece 2 can rotate freely, and the old rope can be conveniently recycled; when the pre-tightening mechanism is in a pre-tightening state, the pre-tightening mechanism generates resistance to prevent the second clamping piece 2 from rotating, the second clamping piece is not completely locked, only a certain degree of resistance is provided according to use requirements, and the winding drum 5 can rotate, so that the pre-tightening force can be applied to the new rope while the new rope is wound. The rope structure wound on the drum 5 includes, but is not limited to, a steel rope, a steel cable, a cable, and the like, and in this embodiment, the steel rope is mainly taken as an example for description.

In one embodiment, the right side of the first clamping member 1 is connected to the left side of the winding drum 5, and the right side of the winding drum 5 is connected to the left side of the second clamping member 2, so that the two sides of the winding drum 5 can be clamped and fixed by the first clamping member 1 and the second clamping member 2, and the rotary driving force of the driving mechanism can be transmitted to the winding drum 5 through the first clamping member 1 to drive the winding drum to rotate, so as to recover the old rope; meanwhile, the pre-tightening resistance of the pre-tightening mechanism can be transmitted to the winding drum 5 through the second clamping piece 2 to prevent the winding drum from rotating freely, and then the new rope is pre-tightened while the new rope is released.

The rope changing device provided by the embodiment utilizes the winding drum clamping mechanism to detachably connect the winding drum 5, so that the winding drum 5 is driven by the driving mechanism to rotate, and meanwhile, reverse pre-tightening force can be provided through the pre-tightening mechanism. This trade rope device both can retrieve old rope, can install new rope again, has realized mechanized operation, reduces intensity of labour by a wide margin, and can provide the pretightning force in installing new rope, need not to recycle lifting hook and load and carries out extra pretension, has simplified and has traded the rope flow, labour saving and time saving.

Further, as shown in fig. 2, the first clamping member 1 and the second clamping member 2 have the same structure, and the structure of the first clamping member 1 is taken as an example for specific description, and the component structure of the second clamping member 2 is the same as that of the first clamping member 1, and is not repeated. The first clamping member 1 includes a bottom plate 13 disposed along a radial direction of the reel 5 (i.e., an up-down direction in fig. 2) and a plurality of retractable clamping jaws 14 disposed along a circumferential direction of the bottom plate 13, the retractable clamping jaws 14 are retractable along the radial direction of the reel 5, and retractable ends of the retractable clamping jaws 14 are detachably connected to a reel hub 52 of the reel 5.

In particular, in this embodiment, the side of the base plate 13 facing the reel 5 can be attached to the reel hub 52, and the side of the base plate 13 facing away from the reel 5 can be connected to a drive mechanism or a pretensioning mechanism. The number of the telescopic clamping jaws 14 may be two or more, in this embodiment, four telescopic clamping jaws 14 are taken as an example for illustration, and the four telescopic clamping jaws 14 are uniformly distributed along the circumferential direction of the bottom plate 13. The fixed end of the telescopic clamping jaw 14 is fixedly connected to the bottom plate 13, and the telescopic end of the telescopic clamping jaw 14 can stretch and move along the radial direction of the winding drum 5, so that the winding drum 5 can be adapted to winding drums 5 with different diameters. The telescopic clamping jaw 14 can be manually telescopic, and can also adopt an electric telescopic device, a hydraulic telescopic device, a starting telescopic device or an electromagnetic telescopic device and the like.

Further, as shown in fig. 2, in the embodiment, a manual telescopic jaw 14 is taken as an example for explanation, the telescopic jaw 14 includes a sleeve 141, a telescopic arm 142 and a locking member 143, the sleeve 141 is fixed to the bottom plate 13, one end of the telescopic arm 142 is slidably connected to the sleeve 141, the other end of the telescopic arm 142 is detachably connected to the reel hub 52 of the reel 5, and the locking member 143 is used for locking the sleeve 141 and the telescopic arm 142.

Specifically, in this embodiment, the sleeve 141 is hollow inside, the telescopic arm 142 may be an L-shaped rod, for example, and the long rod segment of the telescopic arm 142 may be inserted into the sleeve 141 and slide up and down in the sleeve 141. The sleeve 141 is provided with a locking member 143, the locking member 143 can adopt a bolt structure, and a bolt can extend into the sleeve 141 and tightly abut against the telescopic arm 142, so as to lock the sleeve 141 and the telescopic arm 142. In addition, according to the diameter of the common winding drum 5, a plurality of positioning holes can be formed in the telescopic arm 142, and the locking function can be realized by inserting bolts or positioning bolts into the positioning holes. The short rod section of the telescopic arm 142 is detachably connected to the reel hub 52 of the reel 5, and may also be connected in a manner of bolt rotation and fastening, or may also be detachably connected in other manners such as a latch or a buckle, which is not limited herein.

Further, as shown in fig. 1 and fig. 2, in the embodiment of the present invention, the first clamping member 1 is further fixedly connected with a first coupling shaft 11, one end of the first coupling shaft 11 extends into the cylinder 51 of the winding drum 5, and the other end of the first coupling shaft 11 is connected to the driving mechanism. The second clamping member 2 is further fixedly connected with a second coupling shaft 21, one end of the second coupling shaft 21 extends into the cylinder 51 of the winding drum 5, and the other end of the second coupling shaft 21 is connected to the pre-tightening mechanism.

Specifically, the first coupling shaft 11 and the second coupling shaft 21 are both disposed along the axial direction (i.e., the left-right direction in fig. 2) of the reel 5, and by extending the first coupling shaft 11 and the second coupling shaft 21 into the cylinder 51 of the reel 5, the weight of the reel 5 can be borne, the load bearing burden of the telescopic jaw 14 can be reduced, and the mounting reliability and safety of the reel 5 can be improved. The side of the first coupling shaft 11 facing away from the winding drum 5 can be in abutment with the output shaft flange of the drive mechanism via the flange 12, or can be in abutment with another shaft, such as a coupling, as long as rotation transmission is possible. Likewise, the side of the second coupling shaft 21 facing away from the spool 5 can also be connected to the flange 12 of the prestressing mechanism by means of the flange 12, as long as resistance transmission is possible.

Further, as shown in fig. 1, in the embodiment of the present invention, the driving mechanism includes a hydraulic motor 3, and an output shaft of the hydraulic motor 3 is connected to the first coupling shaft 11. The hydraulic motor 3 may be connected to the first coupling shaft 11 by means of, for example, a reduction gear. The hydraulic motor 3 may obtain hydraulic energy from a hydraulic system of a hydraulic machine on site through a hydraulic hose, and in a specific embodiment, may directly obtain hydraulic energy from a hydraulic system of an engineering machine to be roped, such as a crawler crane, to drive the hydraulic machine. Because the construction site generally has no electricity, the difficult problem of electricity utilization can be effectively solved by obtaining power from hydraulic machinery, and the practicability is strong.

Further, as shown in fig. 1 and 3, the pretensioner mechanism includes a brake 4, and the brake 4 is connected to the second coupling shaft 21. Specifically, in some embodiments, the brake 4 may adopt a manual brake, an electric brake, a hydraulic brake, an electromagnetic brake, or the like according to the power source; or in other embodiments, depending on the braking structure, a drum brake, a disc brake, a band brake, a magnetic powder brake, or the like may be used, as long as the resistance can be provided to the second coupling shaft 21, and this is not limited herein.

Further, as shown in fig. 1 and fig. 3, the present embodiment is described by taking a manual drum brake as an example, and the rest of the brake 4 is similar to the manual drum brake and will not be described again. The brake 4 comprises a brake base 41, a brake clearance adjustment assembly 46 and two oppositely arranged brake arms, a first brake arm 421 and a second brake arm 422 respectively. The opposite sides of the two brake arms are provided with brake shoes, i.e. the side of the first brake arm 421 facing the second brake arm 422 is provided with a first brake shoe 431, and the side of the second brake arm 422 facing the first brake arm 421 is provided with a second brake shoe 432. A brake bearing 44 is arranged between the first brake shoe 431 and the second brake shoe 432, the brake bearing 44 is sleeved on the second coupling shaft 21, specifically, the second coupling shaft 21 can extend by butting against the brake shaft 45, and the brake bearing 44 is sleeved on the brake shaft 45, so that the transmission of the resistance is realized.

Further, in this embodiment, one end of each of the first brake arm 421 and the second brake arm 422 is rotatably connected to the brake base 41, the other end of each of the first brake arm 421 and the second brake arm 422 is connected to the brake gap adjusting assembly 46, and by changing the length of the brake gap adjusting assembly 46, the first brake arm 421 and the second brake arm 422 are driven to approach or separate from each other, and simultaneously the first brake shoe 431 and the second brake shoe 432 are driven to approach or separate from each other, so that the brake shoe presses or releases the brake bearing 44, and the brake 4 is switched between the pre-tightening state and the releasing state. Meanwhile, different pre-tightening forces can be provided by adjusting the size of the space between the first brake shoe 431 and the second brake shoe 432.

Further, as shown in fig. 3, in the embodiment of the present invention, the braking gap adjusting assembly 46 includes an adjusting sleeve 461 and an adjusting rod 462 inserted into the adjusting sleeve 461, and the adjusting rod 462 can be extended or retracted along the axial direction of the adjusting sleeve 461. The adjustment sleeve 461 is rotatably coupled to the first brake arm 421 and the adjustment lever 462 is rotatably coupled to the second brake arm 422. Specifically, the brake clearance adjusting assembly 46 may adopt a manual adjustment mode, one end of the adjusting rod 462 is inserted into the adjusting sleeve 461, while the other end of the adjusting rod 462 is sleeved with a movable sleeve, the adjusting rod 462 can move along the axial direction of the movable sleeve, and the outer wall of the movable sleeve is rotatably connected to the second brake arm 422. The end of the other end of the adjusting rod 462 is provided with an adjusting hand wheel 463, the adjusting rod 462 is in threaded connection with the adjusting sleeve 461, and when the braking distance needs to be adjusted, an operator only needs to manually rotate the adjusting hand wheel 463. In addition, the brake clearance adjusting assembly 46 may also adopt an electric telescopic rod, a hydraulic rod, or other devices that are driven by external power to extend and retract, and is not limited herein.

On the basis of the above embodiment, as shown in fig. 1, the rope replacing device further includes a base 6, a first mounting seat 7 and a second mounting seat 8, the first clamping member 1 and the driving mechanism are mounted on the first mounting seat 7, and the second clamping member 2 and the pre-tightening mechanism are mounted on the second mounting seat 8. At least one of the first mount 7 and the second mount 8 is slidably attached to the base 6 in the axial direction of the reel 5. Specifically, a plurality of positioning holes can be formed in the base 6, and meanwhile, mounting holes are correspondingly formed in the first mounting seat 7 and the second mounting seat 8, so that when the distance between the first clamping piece 1 and the second clamping piece 2 needs to be adjusted, the mounting holes in the first mounting seat 7 and the second mounting seat 8 only need to be registered with the appropriate positioning holes, and then the first mounting seat 7 and the second mounting seat 8 are fixed by using bolts.

Furthermore, according to the utility model discloses an embodiment can also set up the slide rail on base 6, and first mount pad 7 and second mount pad 8 can follow the slide rail and slide in succession, when treating to remove to suitable position, reuse for example retaining member locking such as bolt or hasp can, here do not do the restriction. In a specific embodiment, the first mounting base 7 is fixed, so that the connection between the driving mechanism (e.g. the hydraulic motor 3) and the external energy supply system can be fixed relatively, and then the distance adjustment can be realized by moving the second mounting base 8. By adjusting the distance between the first and second clamping members 1, 2, reels 5 of different lengths can be accommodated.

The utility model also provides an engineering machine tool, include as above-mentioned trade rope device. The driving mechanism of the rope changing device can be provided with kinetic energy by a hydraulic system of the engineering machinery, and can also adopt an electric driving mechanism. Specifically, the engineering machine can be directly an engineering machine to be changed in rope, such as a crane, and can also be other movable engineering vehicles, such as crawler-type engineering vehicles, and the rope changing device is driven by the engineering vehicles to move to the position near the engineering machine to be changed in rope, so that the operation is convenient.

In a specific embodiment, there is also provided a rope changing method using the rope changing device as described above, including:

step S100: the first reel is connected with the reel clamping mechanism in a clamping mode, is used for recycling old ropes and can be an empty reel.

Step S200: and fixedly connecting the rope head of the old rope to be changed into the rope reel with the first reel, loosening the pre-tightening mechanism and starting the driving mechanism so as to recycle the old rope.

Step S300: and after all the old ropes are wound on the first winding drum, closing the driving mechanism and detaching the first winding drum.

Step S400: and clamping and connecting the reel clamping mechanism with a second reel, wherein the second reel is used for releasing a new rope.

Step S500: and fixedly connecting the rope end of the new rope on the second winding drum with the rope changing winding drum, adjusting the pre-tightening mechanism to a pre-tightening state, and rotating the rope changing winding drum to wind the new rope. The drive mechanism can now be in an idle state or at a speed which is synchronized with the speed of the rope drum to be replaced.

Step S600: and stopping rotating the rope changing drum after the new ropes are completely wound on the rope changing drum.

In a particular embodiment, the rope drum to be replaced can be mounted on a hydraulically operated machine, such as a crane. The drive means can thus be connected to the hydraulic system of the hydraulic working machine before the drive means is activated. Meanwhile, the first winding drum can be directly hoisted out of the rope changing device by using a crane, and the second winding drum is hoisted into the rope changing device. While before using the rope change device, the first reel (usually an empty reel) and the second reel (usually a new wire rope reel) can be unloaded from the loading vehicle to the ground for fixing by using a crane; after the rope is changed, the crane is used for hoisting the rope changing device, the first winding drum reloaded with the old rope and the second winding drum unloaded with the old rope to a loading vehicle from the ground, and the loading vehicle moves to a specified area to be recovered.

The following describes how the rope changer can be used in connection with a specific embodiment.

The unloading is performed first. The creeper crane to be reeved unloads the reeving device, the empty reel (i.e., the first reel) and the new wire rope reel (i.e., the second reel) assembly that are shipped to the job site.

And then recovering the old steel wire rope. Firstly, mounting a winding drum clamping mechanism on an empty winding drum; then the brake 4 is installed at a proper position through a second installation seat 8; then, an empty reel connected with a reel clamping mechanism is loaded into the rope replacing device by using a crawler crane to be used for replacing the rope, so that the first coupling shaft 11 is in butt joint with the hydraulic motor 3, and the second coupling shaft 21 is in butt joint with the brake 4; then, the hydraulic motor 3 is connected into a hydraulic pipeline of the crawler crane to be changed, and the brake 4 is kept in a released state, namely, the crawler crane is not braked; fixing the rope head of an old steel wire rope of the crawler crane to be replaced on an empty winding drum; an operator operates in the cab, and drives the hydraulic motor to recover the old rope while releasing the old steel wire rope for lifting the winch until the old rope is released; then, hoisting the winding drum full of the steel wire rope out of the rope replacing device by using a crawler crane to be replaced; and (5) disassembling the reel clamping mechanism to finish the old rope collection.

A new wire rope is then installed. Firstly, mounting a winding drum clamping mechanism on a new steel wire rope winding drum assembly; then the brake 4 is installed at a proper position through a second installation seat 8; then, a crawler crane to be used for replacing the rope is used for loading a new steel wire rope reel assembly into the rope replacing device, so that the first connecting shaft 11 is in butt joint with the hydraulic motor 3, and the second connecting shaft 21 is in butt joint with the brake 4; keeping the hydraulic circuit of the hydraulic motor 3 unchanged; fixing the rope end of the new steel wire rope on the hoisting winch; then adjusting the adjusting rod of the brake 4 to a proper position to enable the brake 4 to provide proper braking torque, namely pretightening force; an operator operates in the cab to enable the hoisting winch to perform rope winding action and wind a new steel wire rope until the rope is completely wound; then, the crawler crane to be used for replacing the rope is used for hoisting the empty reel out of the rope replacing device; and (5) detaching the reel clamping mechanism to finish the installation of the new steel wire rope.

And finally, loading. And (5) loading the rope changing device, the empty reel and the old steel wire rope reel assembly by using a crawler crane to be changed.

Can see through above embodiment, the utility model provides a trade rope device and engineering machine tool wherein trades the rope device and utilizes reel fixture detachably to connect reel 5, makes reel 5 rotatory under actuating mechanism's drive, can also provide reverse pretightning force through pretensioning mechanism simultaneously. When the old rope is recovered, a first winding drum for recovering the old rope is connected by a winding drum clamping mechanism, the old rope of the rope winding drum to be replaced is connected to the first winding drum, then the first winding drum is driven by a driving mechanism to rotate to recover the old rope, and a pre-tightening mechanism is loosened to prevent the pre-tightening mechanism from providing pre-tightening force; when installing the new rope, lift off first reel earlier, change the second reel that is used for releasing the new rope, then connect the new rope on waiting to trade the rope reel, utilize and wait to trade the rotatory new rope of winding of rope reel, adjust pretension mechanism to pretension state, treat that to trade the rope reel and twine the new rope and provide opposite pretightning force. This trade rope device both can retrieve old rope, can install new rope again, has realized mechanized operation, reduces intensity of labour by a wide margin, and can provide the pretightning force in installing new rope, need not to recycle lifting hook and load and carries out extra pretension, has simplified and has traded the rope flow, labour saving and time saving.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The rope replacing device is characterized by comprising a winding drum clamping mechanism, a driving mechanism and a pre-tightening mechanism, wherein the winding drum clamping mechanism comprises a first clamping piece and a second clamping piece which are arranged oppositely, and one side, opposite to the first clamping piece and the second clamping piece, of the first clamping piece and the second clamping piece can detachably clamp a winding drum; one side of the first clamping piece, which deviates from the second clamping piece, is connected to the driving mechanism, and one side of the second clamping piece, which deviates from the first clamping piece, is connected to the pre-tightening mechanism.

2. The rope replacing device according to claim 1, wherein the first clamping member and the second clamping member each comprise a bottom plate and a plurality of telescopic clamping jaws arranged along a circumferential direction of the bottom plate, the bottom plate can be clamped at two opposite sides of the reel in an axial direction, the telescopic clamping jaws can be extended and retracted along a radial direction of the reel, and telescopic ends of the telescopic clamping jaws can be detachably connected to a reel hub of the reel.

3. The apparatus of claim 2, wherein the retractable jaw includes a sleeve fixedly attached to the base plate, a retractable arm slidably connected at one end to the sleeve and detachably connected at another end to a drum hub of the drum, and a retaining member capable of locking the sleeve and the retractable arm.

4. The rope replacing device as claimed in claim 1, wherein the first clamping member is further fixedly connected with a first coupling shaft, one end of the first coupling shaft can extend into the barrel of the winding drum, and the other end of the first coupling shaft is connected to the driving mechanism; the second clamping piece is further fixedly connected with a second coupling shaft, one end of the second coupling shaft can extend into the barrel of the winding drum, and the other end of the second coupling shaft is connected with the pre-tightening mechanism.

5. The rope change device of claim 4, wherein the drive mechanism includes a hydraulic motor having an output shaft connected to the first coupling shaft.

6. The rope change device of claim 4, wherein the pretensioning mechanism includes a brake coupled to the second coupling shaft.

7. The rope replacing device as claimed in claim 6, wherein the brake comprises a brake base, a brake clearance adjusting assembly and two oppositely arranged brake arms, brake shoes are mounted on opposite sides of the two brake arms, a brake bearing is arranged between the two brake shoes, and the brake bearing is sleeved on the second coupling shaft; one end of the brake arm is rotatably connected to the brake base, the other end of the brake arm is connected to the brake clearance adjusting assembly, and the brake clearance adjusting assembly can adjust the distance between the two brake shoes.

8. The rope replacing device as claimed in claim 7, wherein the brake clearance adjusting assembly comprises an adjusting sleeve and an adjusting rod inserted in the adjusting sleeve, and the adjusting rod can extend out or retract along the axial direction of the adjusting sleeve; the adjusting sleeve is rotatably connected to one of the brake arms, and the adjusting rod is rotatably connected to the other of the brake arms.

9. The rope changing device according to any one of claims 1 to 8, further comprising a base, a first mounting seat and a second mounting seat, wherein the first clamping member and the driving mechanism are mounted on the first mounting seat, and the second clamping member and the pre-tightening mechanism are mounted on the second mounting seat; at least one of the first mount and the second mount is slidably connected to the base in an axial direction of the reel.

10. A working machine, characterized in that it comprises a rope changing device according to any one of claims 1 to 9.

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