阅读说明：本技术 钢丝绳连接结构、钢丝绳穿绳装置、穿绳系统和穿绳方法 (Steel wire rope connecting structure, steel wire rope threading device, threading system and threading method ) 是由 龙德元 罗昀 于 2020-10-29 设计创作，主要内容包括：本发明涉及工程机械领域,公开了一种钢丝绳连接结构、钢丝绳穿绳装置、穿绳系统和穿绳方法,其中,所述钢丝绳连接结构包括牵引绳、连接件和直径大于所述牵引绳的待安装钢丝绳,连接件包括用于连接牵引绳的第一连接部和用于连接待安装钢丝绳的第二连接部,第二连接部包括柔性连接套,柔性连接套设置为能够被操作而扩张和收缩内径,以使柔性连接套能够压紧地套设在待安装钢丝绳的端部,第一连接部包括连接于第二连接部以操作柔性连接套的操作部。可以通过连接件方便地连接牵引绳和待安装钢丝绳,以便在通过较轻且便于操作的牵引绳沿预定路径穿绳后连接待安装钢丝绳,从而通过牵引绳反向拖动较重的待安装钢丝绳完成穿绳。(The invention relates to the field of engineering machinery, and discloses a steel wire rope connecting structure, a steel wire rope reeving device, a reeving system and a reeving method, wherein the steel wire rope connecting structure comprises a traction rope, a connecting piece and a steel wire rope to be installed, the diameter of the steel wire rope is larger than that of the traction rope, the connecting piece comprises a first connecting part used for connecting the traction rope and a second connecting part used for connecting the steel wire rope to be installed, the second connecting part comprises a flexible connecting sleeve, the flexible connecting sleeve is arranged to be capable of being operated to expand and contract the inner diameter so that the flexible connecting sleeve can be tightly sleeved on the end part of the steel wire rope to be installed, and the first connecting part comprises an operating part connected to the. The haulage rope can be conveniently connected and the steel wire rope to be installed can be conveniently connected through the connecting piece so that the steel wire rope to be installed is connected after the haulage rope which is light and convenient to operate is threaded along a preset path, and the heavy steel wire rope to be installed is reversely dragged through the haulage rope to complete threading.)

1. The utility model provides a wire rope connection structure, its characterized in that, wire rope connection structure includes haulage rope (10), connecting piece (20) and diameter is greater than treat installation wire rope (30) of haulage rope (10), connecting piece (20) are including being used for connecting the first connecting portion of haulage rope (10) with be used for connecting treat the second connecting portion of installing wire rope (30), the second connecting portion include flexible connecting sleeve (21), flexible connecting sleeve (21) set up to can be operated and expand and shrink internal diameter, so that flexible connecting sleeve (21) can compress tightly the ground cover and establish treat the tip of installing wire rope (30), first connecting portion including connect in the second connecting portion are with the operation portion (22) of flexible connecting sleeve.

2. The steel wire rope connection structure according to claim 1, characterized in that:

the first connecting part comprises a fixing ring (23) connected to the tail end of the operating part (22), and the traction rope (10) is fixed by passing through the fixing ring (23); and/or the presence of a gas in the gas,

the flexible connecting sleeve (21) is a net-shaped steel wire sleeve.

3. A steel wire rope connection according to claim 1, wherein the end of the flexible connection sleeve (21) that is connected to the operating portion is provided as a closed end (211).

4. A steel cable connection according to claim 3, wherein the closed end (211) is arranged tapering towards the operating portion (22).

5. A steel wire rope connection according to any one of claims 1-4, characterized in that the operating portion (22) is a rod arranged in the axial direction of the flexible connection sleeve (21) and/or that the end of the steel wire rope (30) to be installed is wrapped with a flexible lining for increasing the friction between the flexible connection sleeve (21) and the end.

6. A steel wire rope reeving device, characterized in that the steel wire rope reeving device comprises a reeving winch (40) and the steel wire rope reeving device of any one of claims 1 to 5, both ends of the haulage rope (10) are respectively connected with the connecting piece (20) and the reeving winch (40) so as to receive and release the haulage rope (10) through the reeving winch (40).

7. A reeving system, characterized in that it comprises a machine body and a rope reeving device according to claim 6, the machine body comprising a working mechanism with a hydraulic output interface, the reeving winch (40) being mounted to the machine body and connected to the hydraulic output interface to be driven by the hydraulic pressure provided by the working mechanism.

8. A reeving system according to claim 7, wherein the working mechanism is a leg and the reeving winch (40) is arranged to be operated in forward and reverse rotation by extension and retraction of the leg.

9. A method of threading rope, the method comprising:

s1, winding the rope according to a preset path by using the traction rope (10) led out from the rope-threading winch (40);

s2, connecting the hauling cable (10) by using a connector (20) and a steel wire rope (30) to be installed, which is connected with an auxiliary winch (50) and has a diameter larger than that of the hauling cable (10), the connector (20) comprises a first connection portion and a second connection portion, the second connection portion comprising a flexible connection sleeve (21) operable to expand and contract an inner diameter, the first connecting part comprises an operating part (22) connected with the second connecting part to operate the flexible connecting sleeve (21), the traction rope (10) is connected with the first connecting part, one end of the steel wire rope (30) to be installed is placed into the expanded flexible connecting sleeve (21), the flexible connecting sleeve (21) is contracted through the operating part (22), so that the flexible connecting sleeve (21) is tightly sleeved on the end part of the steel wire rope (30) to be installed;

s3, retracting the hauling cable (10) through the reeving winch (40) so as to enable the steel cable (30) to be installed to be wound along the preset path in the reverse direction;

s4, expanding the flexible connecting sleeve (21) through the operating part (22), and disconnecting the steel wire rope (30) to be installed from the second connecting part.

10. A reeving method according to claim 9, characterized in that it is a reeving method of a luffing winch (60) of a crane, which reeving method is carried out steps S1-S4 when the mast (70) of the crane is in a retracted state and comprises, after step S4:

s5, connecting the tail end of the steel wire rope (30) to be installed, disconnected from the second connecting part, to the luffing winch (60);

s6, the steel wire rope (30) to be installed is completely released from the auxiliary winch (50) through the variable amplitude winch (60), and the free end of the steel wire rope (30) to be installed is connected to the variable amplitude winch (60);

s7, tensioning the steel wire rope (30) to be installed through the luffing winch (60), and then turning the mast (70) of the crane to a spreading state.

Technical Field

The invention relates to the field of engineering machinery, in particular to a steel wire rope connecting structure, a steel wire rope threading device, a threading system and a threading method.

Background

In the field of engineering machinery, it is generally required to thread a steel wire rope (i.e., threading), for example, when a hoisting steel wire rope of a crane (e.g., a crawler crane) is assembled, the steel wire rope is threaded around a pulley on a main machine, a main hoist, and the like. Because the wire rope is the type that the diameter is thicker, whole heavier, and the route of reeving is comparatively complicated in addition, and whole reeving operation mainly relies on the manpower to need many people to cooperate and can accomplish, efficiency is extremely low.

Disclosure of Invention

The invention aims to solve the problem of low stringing efficiency in the prior art, and provides a steel wire rope connecting structure which can conveniently connect a traction rope and a steel wire rope to be installed so as to conveniently complete a stringing path through the traction rope and improve the efficiency.

In order to achieve the above object, an aspect of the present invention provides a wire rope connection structure, where the wire rope connection structure includes a traction rope, a connector, and a wire rope to be installed, the wire rope having a diameter larger than that of the traction rope, the connector includes a first connection portion for connecting the traction rope and a second connection portion for connecting the wire rope to be installed, the second connection portion includes a flexible connection sleeve, the flexible connection sleeve is configured to be operable to expand and contract an inner diameter so that the flexible connection sleeve can be compressively fitted over an end portion of the wire rope to be installed, and the first connection portion includes an operation portion connected to the second connection portion to operate the flexible connection sleeve.

Optionally, the first connecting part comprises a fixing ring connected to the end of the operating part, and the traction rope is fixed around the fixing ring; and/or the flexible connecting sleeve is a net-shaped steel wire sleeve.

Optionally, one end of the flexible connecting sleeve connected with the operating part is set as a closed end.

Optionally, the closed end is arranged to taper towards the operating portion.

Optionally, the operating portion is a rod disposed along an axial direction of the flexible connecting sleeve, and/or a flexible lining layer for increasing friction between the flexible connecting sleeve and the end portion is wrapped on the end portion of the steel wire rope to be installed.

The application still provides a wire rope reeving device, wherein, the wire rope reeving device includes the reeving hoist and the wire rope reeving device of this application, the both ends of haulage rope are connected respectively the connecting piece with the reeving hoist, in order to pass through the reeving hoist receive and releases the haulage rope.

The application still provides a rope handling system, wherein, the rope handling system includes mechanical main part and the wire rope handling device of this application, mechanical main part is including the operating device who has hydraulic output interface, the rope handling hoist install in mechanical main part and connect in hydraulic output interface is in order to pass through the hydraulic drive of operating device's the providing.

Optionally, the working mechanism is a supporting leg, and the rope threading winch is configured to perform forward and backward rotation operations by extension and retraction of the supporting leg.

The application also provides a stringing method, wherein the stringing method comprises the following steps:

s1, winding the rope according to a preset path by using the traction rope led out from the rope threading winch;

s2, connecting the hauling cable and a steel wire rope to be installed, which is connected with an auxiliary winch and has a diameter larger than that of the hauling cable, by using a connector, wherein the connector comprises a first connecting part and a second connecting part, the second connecting part comprises a flexible connecting sleeve which can be operated to expand and contract the inner diameter, the first connecting part comprises an operating part which is connected with the second connecting part to operate the flexible connecting sleeve, the hauling cable is connected with the first connecting part, one end of the steel wire rope to be installed is placed into the expanded flexible connecting sleeve, and the flexible connecting sleeve is contracted by the operating part to be tightly sleeved on the end part of the steel wire rope to be installed;

s3, retracting the hauling cable through the reeving winch so as to enable the steel wire rope to be installed to be wound along the preset path in the opposite direction;

and S4, expanding the flexible connecting sleeve through the operating part, so as to disconnect the steel wire rope to be installed from the second connecting part.

Optionally, the rope threading method is a rope threading method of a luffing winch of a crane, and the rope threading method is performed in steps S1-S4 when a mast of the crane is in a retracted state and includes steps performed after step S4:

s5, connecting the tail end of the steel wire rope to be installed, disconnected from the second connecting part, to the variable amplitude winch;

s6, the steel wire rope to be installed is completely released from the auxiliary winch through the variable amplitude winch, and the free end of the steel wire rope to be installed is connected to the variable amplitude winch;

and S7, tensioning the steel wire rope to be installed through the luffing winch, and then turning the mast of the crane to a spreading state.

Through above-mentioned technical scheme, can conveniently connect the haulage rope and wait to install wire rope through the connecting piece to connect and wait to install wire rope after the haulage rope reeving through lighter and be convenient for operation along the predetermined path, thereby drag heavier wire rope of waiting to install through the haulage rope is reverse to accomplish the reeving.

Drawings

Fig. 1 is a schematic view of a steel cord connection according to an embodiment of the present application;

FIG. 2 is a schematic illustration of a reeving hoist of one embodiment of the present application mounted on a machine body;

fig. 3 to 7 are schematic views showing a stringing operation using the stringing method of the present application.

Description of the reference numerals

10-a traction rope, 20-a connecting piece, 21-a flexible connecting sleeve, 211-a closed end, 22-an operating part, 23-a fixed ring, 30-a steel wire rope to be installed, 40-a rope-threading winch, 41-an installation seat, 42-a bolt, 50-an auxiliary winch, 60-an amplitude-variable winch, 70-a mast, 80-a pulley block and 90-a debugging weight.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, the use of directional terms such as "upper, lower, left, right" generally means upper, lower, left, right as viewed with reference to the accompanying drawings, unless otherwise specified; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to an aspect of the application, a wire rope connection structure is provided, wherein, wire rope connection structure includes that haulage rope 10, connecting piece 20 and diameter are greater than the wire rope 30 of waiting to install of haulage rope 10, connecting piece 20 is including being used for connecting the first connecting portion of haulage rope 10 with be used for connecting the second connecting portion of waiting to install wire rope 30, the second connecting portion include flexible connecting sleeve 21, flexible connecting sleeve 21 sets up to can be operated and expand and shrink internal diameter, so that flexible connecting sleeve 21 can compress tightly the ground cover and establish wait to install the tip of wire rope 30, first connecting portion including connect in the second connecting portion is with the operation portion 22 of flexible connecting sleeve.

The hauling cable 20 is a thin steel wire rope with a small diameter, so that the weight is light, and manual auxiliary rope threading is facilitated. The steel wire rope 30 to be installed is a thick steel wire rope with a thick diameter, and the weight is large. With the steel wire rope connection structure of the present application, the hauling cable 10 and the steel wire rope 30 to be installed can be conveniently connected through the connector 20, so that the steel wire rope 30 to be installed is connected after threading along a predetermined path through the hauling cable 10 which is light and convenient to operate, and the heavy steel wire rope 30 to be installed is reversely dragged through the hauling cable 10 to complete threading.

Wherein the expansion and contraction of the flexible connection sleeve 21 can be operated by the operation part 22 to conveniently release and connect the wire rope 30 to be installed. Specifically, the flexible connecting sleeve 21 may be expanded through the operating portion 22 to make the inner diameter thereof larger than the diameter of the steel cable 30 to be installed, so that the steel cable 30 to be installed can be placed into the flexible connecting sleeve 21; subsequently, the flexible connection sleeve 21 can be retracted by the operation portion 22, so that the flexible connection sleeve 21 is tightly wrapped on the cable 30 to be installed, thereby completing the connection with the cable 30 to be installed. When the steel wire rope 30 to be installed needs to be released, the flexible connecting sleeve 21 is expanded again through the operation part 22.

The flexible connecting sleeve 21 can be in various forms suitable for expansion and contraction deformation. For example, the flexible connecting sleeve 21 may be a mesh-shaped steel wire sleeve, specifically, a sleeve shape woven by steel wire ropes, the inner diameter of the sleeve can be contracted by tightening the flexible connecting sleeve 21 to shrink the mesh, and the inner diameter of the sleeve can be expanded by expanding the mesh. Wherein, the flexible connecting sleeve 21 can be contracted and expanded by applying axial pulling force and pushing force to the flexible connecting sleeve 21 through the operating part 22. In order to facilitate the application of the axial force by the operating part 22, the operating part 22 is a rod member that can be disposed along the axial direction of the flexible connecting sleeve 21.

In addition, the flexible connection sleeve 21 is connected with the steel wire rope 30 to be installed mainly through friction force between the flexible connection sleeve 21 and the steel wire rope 30 to be installed, and in order to ensure that the connection strength of the flexible connection sleeve 21 and the steel wire rope 30 to be installed at the end part of the steel wire rope 30 to be installed is enough to drag the rest part of the steel wire rope 30 to be installed, the length of the flexible connection sleeve 21 can be set according to the specification and the like of the steel wire rope 30 to be installed, so that enough. Preferably, the length of the flexible connecting sleeve 21 is 0.8-1.5 m.

In addition, in order to increase the connection force between the flexible connection sleeve 21 and the steel cable 30 to be installed, it is preferable that the end of the steel cable 30 to be installed is wrapped with a flexible lining layer for increasing the friction force between the flexible connection sleeve 21 and the end. When the flexible connecting sleeve 21 contracts, the flexible connecting sleeve 21 directly contacts with the flexible lining, so that the flexible lining deforms and wraps at least one part of the steel wire of the flexible connecting sleeve 21, and the contact area of the flexible connecting sleeve 21 and the flexible lining is increased. Also, the contact area of the flexible liner with the wire rope 30 to be installed is increased by the wrapping and deformation. Also, the flexible liner has a greater coefficient of friction than the rigid flexible connection sleeve 21 and the wireline 30 to be installed. The flexible lining can thus advantageously increase the connection force between the cable 30 to be installed and the flexible connecting sleeve 21. In addition, the elasticity of the flexible lining can avoid the abrasion of the rigid steel wire rope 30 to be installed and the flexible connecting sleeve 21 in the dragging process. The flexible lining may take any suitable form, for example, it may be a cotton cloth and is fixed on the outer circumference of the flexible connecting sleeve 21 by adhesive wrapping.

The first coupling portion may be coupled to the leash 10 in a variety of suitable ways. Since the traction rope 10 has a small diameter, it is preferable that the first coupling portion includes a fixing ring 23 coupled to a distal end of the operating portion 22, and the traction rope 10 is fixed around the fixing ring 23. For example, the pull-cord 10 may be coupled with a shackle around the securing ring 23.

To facilitate the connection of the operating part, as shown in fig. 1, the end of the flexible connecting sleeve 21 connected to the operating part is provided as a closed end 211. In addition, in the case where the operating portion 22 is a rod, the axial force can be surely applied by connecting the operating portion 22 to the center of the closed end 211.

As described above, in use, the steel wire rope 30 to be installed is dragged through the predetermined path by the pulling rope 10, and in order to facilitate the steel wire rope 30 to be installed to accurately follow the dragging of the pulling rope 10, the closed end 211 is preferably disposed to be tapered toward the operating portion 22. The tapered arrangement of the closed end 211 may provide accurate guidance for movement of the cable 30 to be installed.

According to another aspect of the present application, a wire rope reeving device is provided, wherein the wire rope reeving device comprises a reeving winch 40 and the wire rope reeving device of the present application, and two ends of the traction rope 10 are respectively connected to the connecting piece 20 and the reeving winch 40, so that the traction rope 10 is wound and unwound through the reeving winch 40.

Use the wire rope reeving device of this application, can emit haulage rope 10 through reeving hoist 40, make haulage rope 10 twine with predetermined route, connect later through connecting piece 20 and wait to install wire rope 30 and haulage rope 10, the rethread reeving hoist 40 withdraws haulage rope 10 and can drag and wait to install wire rope 30 and twine with predetermined route.

According to another aspect of the present application, a reeving system is provided, wherein the reeving system comprises a machine body and the wire rope reeving device of the present application, the machine body comprises a working mechanism having a hydraulic output interface, and the reeving winch 40 is mounted to the machine body and connected to the hydraulic output interface to be driven by the hydraulic pressure provided by the working mechanism.

The reeving winch 40 may be fixed to the machine body and operated to retract the traction rope 10 by hydraulic driving of the working mechanism.

Wherein the reeving winch 40 may be installed at an appropriate position of the machine body according to the type of the machine body. For example, taking a crawler crane as an example, as shown in fig. 2, the reeving winch 40 may be mounted on a commissioning weight 90 of the crawler crane. Specifically, the rope threading winch 40 may include a mounting seat 41, and the mounting seat 41 may be provided with a mounting hole and fixed to the adjusting weight 90 by a bolt 42.

In addition, depending on the type of the working mechanism, the rope unwinding and rope winding operations of the reeving winch 40 may be performed in cooperation with the related operations of the working mechanism. For example, the working mechanism may be a leg, and the reeving winch 40 is configured to perform forward and reverse rotation operations by extension and retraction of the leg. Therefore, the rope threading winch 40 can perform corresponding rope releasing and rope collecting operations by operating the supporting legs alone or in cooperation with the supporting legs by using the working hydraulic power of the supporting legs. For example, the line may be paid off when the leg is extended and paid off when the leg is retracted, or the line may be paid off when the leg is extended and paid off when the leg is retracted.

Wherein, can set up solitary hydraulic pressure delivery outlet on the landing leg to the reposition of redundant personnel hydraulic power. Preferably, a pressure relief port on the leg can be utilized as a hydraulic outlet.

According to another aspect of the application, a reeving method is provided, wherein the reeving method comprises:

s1, winding the rope 10 led out from the rope-threading winch 40 according to a predetermined path;

s2, connecting the hauling cable 10 and the cable 30 to be installed connected to the auxiliary winch 50 and having a diameter larger than that of the hauling cable 10 by using a connector 20, wherein the connector 20 includes a first connecting portion and a second connecting portion, the second connecting portion includes a flexible connecting sleeve 21 capable of being operated to expand and contract an inner diameter, the first connecting portion includes an operating portion 22 connected to the second connecting portion to operate the flexible connecting sleeve 21, connecting the hauling cable 10 to the first connecting portion, placing one end of the cable 30 to be installed into the expanded flexible connecting sleeve 21, and contracting the flexible connecting sleeve 21 by the operating portion 22 to tightly fit the flexible connecting sleeve 21 on the end of the cable 30 to be installed;

s3, retracting the hauling cable 10 through the reeving winch 40 to wind the cable 30 to be installed along the predetermined path in the opposite direction;

s4, expanding the flexible connecting sleeve 21 by the operating part 22, thereby disconnecting the cable 30 to be installed from the second connecting part.

In the method of the application, the hauling cable 10 can be paid out through the rope-threading winch 40, so that the hauling cable 10 is wound in a preset path, then the steel wire rope 30 to be installed and the hauling cable 10 are connected through the connecting piece 20, and then the hauling cable 10 is retracted through the rope-threading winch 40, so that the steel wire rope 30 to be installed can be dragged to be wound in the preset path.

The method of the present application may be applied to stringing of a construction machine, for example, a stringing method of a luffing winch 60 of a crane (e.g., a crawler crane), which is performed when a mast 70 of the crane is in a retracted state in steps S1-S4 and includes steps S4, and then:

s5, connecting the tail end of the steel wire rope 30 to be installed, which is disconnected from the second connecting part, to the luffing winch 60;

s6, the steel wire rope 30 to be installed is completely released from the auxiliary winch 50 through the variable amplitude winch 60, and the free end of the steel wire rope 30 to be installed is connected to the variable amplitude winch 60;

and S7, tensioning the steel wire rope 30 to be installed through the luffing winch 60, and then overturning the mast 70 of the crane to a spreading state.

The method can be implemented by using the steel wire rope connecting structure, the steel wire rope threading device and the threading system.

The method of the present application will now be described, by way of example, with reference to figures 3 to 7 of the drawings, using a crawler crane. Wherein the reeving winch 40 is mounted on the debugging weight 90 and operated by hydraulic power provided by the support legs. The variable amplitude winch 60 is arranged on a main machine of the crawler crane.

First, as shown in fig. 3, the mast 70 is in a retracted state, and one end of the traction rope 10 drawn out from the reeving winch 40 is pulled out and wound according to a predetermined path, specifically, wound through the pulley block 80 on the crawler crane.

Then, as shown in fig. 4, the free end of the traction rope 10 is connected to the first end of the wire rope 30 to be installed, which is wound and unwound by the auxiliary winding 50, through the coupling 20.

Subsequently, as shown in fig. 5, the traction rope 10 is withdrawn through the reefing winch 40 while dragging the wire rope 30 to be installed to be wound along a predetermined path, and then the traction rope 10 is disconnected from the wire rope 30 to be installed and the first end of the wire rope 30 to be installed is connected to the luffing winch 60, as shown in fig. 6.

Then, the wire rope 30 to be installed is entirely paid out from the auxiliary hoist 50, and the second end of the wire rope 30 to be installed is also fixed to the luffing hoist 60.

Finally, the rope is wound up by the luffing winch 60 to tighten the wire rope 30 to be installed, and the mast 70 is deployed by an auxiliary hoist (e.g., other crane) to the deployed state shown in fig. 7, thereby completing the rope threading.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. The present application includes the combination of individual features in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.