CN215220298U - Dragging cable of coal mining machine - Google Patents

Abstract

The utility model discloses a coal digging machine dragging cable, including the cable core and wrapping covering, tensile buffer layer and restrictive coating of cladding outside the cable core in proper order, the cable core with be provided with the filling layer around between the covering; the cable core comprises three wire cores and a reinforcing core, the three wire cores are mutually twisted around the reinforcing core, each wire core comprises a soft copper conductor, and a TPU inner insulating layer and an ethylene propylene rubber outer insulating layer which are sequentially coated outside the soft copper conductor, and the reinforcing core is formed by twisting aramid fiber ropes around an elastic inner core; tensile buffer layer from interior to exterior includes buffering inlayer, tensile layer and buffering skin in proper order, and the interval is provided with the first bead of round on the periphery wall of buffering inlayer, and the interval is provided with round second bead on the outer internal perisporium of buffering, and first bead is with the second bead and have gapped engaged state, and the middle part of first bead is provided with first buffering hole, and the middle part of second bead is provided with second buffering hole. The utility model discloses aim at solving current pull cable tensile strength and the poor problem of resistant turning performance.

Description

Dragging cable of coal mining machine

Technical Field

The utility model relates to a trailing cable technical field especially relates to a dig coal machine trailing cable.

Background

The towing cable is called a towing chain cable, is a high-flexibility cable which can move back and forth along with the towing chain and is not easy to wear, and is usually placed into the cable towing chain to protect the cable on the occasion that the equipment unit needs to move back and forth in order to prevent the cable from being entangled, worn, pulled off, hung and scattered, and the cable can also move back and forth along with the towing chain.

Among the prior art, trailing cable has satisfied the requirement of high flexibility, but still has the problem that tensile properties is poor and resistant distortion performance is poor, and trailing cable can frequently receive at the during operation and pull and twist reverse, consequently, the condition of breakage, fracture and fracture appears easily after the long-time work of current trailing cable, and life is short.

To above technical problem, the utility model discloses a dig coal machine towing cable, the utility model has the advantages of improve the tensile strength of towing cable and resistant torsion behavior, extension towing cable's life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a dig coal machine towing cable to there is tensile strength poor and resistant technical problem such as the performance is poor of twisting among the solution prior art towing cable, the utility model has the advantages of improve towing cable's tensile strength and resistant twisting performance, extension towing cable's life.

The utility model discloses a following technical scheme realizes: the utility model discloses a coal digging machine dragging cable, including the cable core and wrapping covering, tensile buffer layer and restrictive coating of cladding outside the cable core in proper order, the cable core with be provided with the filling layer around between the covering; the cable core comprises three wire cores and a reinforcing core, the three wire cores are mutually twisted around the reinforcing core, each wire core comprises a soft copper conductor, and a TPU inner insulating layer and an ethylene propylene rubber outer insulating layer which are sequentially coated outside the soft copper conductor, and the reinforcing core is formed by twisting aramid fiber ropes around an elastic inner core; tensile buffer layer from interior to exterior includes the buffering inlayer in proper order, tensile layer and buffering are outer, the interval is provided with the first bead of round on the periphery wall of buffering inlayer, the interval is provided with round second bead on the outer interior perisporium of buffering, the second bead sets up with first bead is crisscross, and first bead is with the second bead be and have gapped meshing state, the tensile layer sets up in the clearance, the middle part of first bead is provided with first buffering hole, the middle part of second bead is provided with second buffering hole, the elasticity inner core, buffering inlayer and buffering skin all adopt TPE elastomer material to make.

Preferably, the cross-section of first bead and second bead all is "trapezoidal", and the cross-section of first bead and second bead all is "trapezoidal", thereby make the periphery on tensile layer form continuous "trapezoidal" structure, the area on tensile layer has been increased, make tensile layer and buffer the stable structure of formation between inlayer and the buffering skin simultaneously, improve the tensile property of trailing cable, when trailing cable receives the torsion, can mutual extrusion deformation between first bead and the second bead, thereby cushion the torsional force, trailing cable's resistant torsional property has been improved.

Preferably, the lapping layer is formed by lapping non-woven fabrics.

Preferably, the filling layer is filled by aramid fiber ropes.

Preferably, the sheath layer is made of TPU material.

Preferably, the tensile layer is woven by aramid fibers.

The utility model has the advantages of it is following:

(1) the utility model discloses in, the strengthening core is formed around elasticity inner core transposition by aramid fiber rope, the filling layer is formed by aramid fiber rope packing, the inside of tensile buffer layer is provided with the tensile layer, the tensile layer all adopts aramid fiber to weave to form, aramid fiber is a novel high-tech synthetic fiber, have the superhigh strength, its intensity is 5 ~ 6 times of steel wire, the modulus is 2 ~ 3 times of steel wire or glass fiber, toughness is 2 times of steel wire, it has good insulating nature and ageing resistance, very long life cycle, simultaneously, because the setting of the first bead on the outer periphery wall of buffering inlayer and the second bead on the inner periphery wall of buffering skin, the area of tensile layer has been increased, form stable structure between tensile layer and buffering inlayer and the buffering skin, thereby, the tensile property of trailing cable has been showing and has been promoted;

(2) in the utility model, the middle part of the reinforcing core is provided with an elastic inner core, the tensile buffer layer sequentially comprises a buffer inner layer, a tensile layer and a buffer outer layer from inside to outside, the outer peripheral wall of the buffer inner layer is provided with a circle of first convex edges at intervals, the inner peripheral wall of the buffer outer layer is provided with a circle of second convex edges at intervals, the second convex edges and the first convex edges are arranged in a staggered way, the middle part of the first convex edges is provided with a first buffer hole, the middle part of the second convex edges is provided with a second buffer hole, and the first convex edges and the second convex edges are in a meshing state with gaps, the elastic inner core, the buffer inner layer and the buffer outer layer are all made of TPE (thermoplastic elastomer) materials, when the towing cable is subjected to torsional force during operation, the first buffer hole and the second buffer hole can generate deformation, thereby buffering the torsional force, the first convex edges and the second convex edges can be extruded mutually to deform, the torsional force is further buffered, the elastic inner core can also play a role in buffering, so that the torsion resistance of the trailing cable is obviously improved, and the service life of the trailing cable is prolonged.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

fig. 2 is a cross-sectional view of a tensile cushioning layer.

In the figure: 1. a cable core; 11. a wire core; 111. a soft copper conductor; 112. a TPU inner insulating layer; 113. an ethylene propylene rubber outer insulation layer; 12. a reinforcing core; 121. an elastic inner core; 2. wrapping a covering; 3. a tensile buffer layer; 31. a buffer inner layer; 311. a first rib; 32. a tensile layer; 33. a buffer outer layer; 331. a second rib; 4. a sheath layer; 5. a filling layer; 6. a first buffer hole; 7. a second buffer hole.

Detailed Description

The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Example 1

Embodiment 1 discloses a coal digging machine dragging cable, which comprises a cable core 1, and a wrapping layer 2, a tensile buffer layer 3 and a sheath layer 4 which are sequentially coated outside the cable core 1, wherein the wrapping layer 2 is formed by wrapping non-woven fabrics, the sheath layer 4 is made of TPU (thermoplastic polyurethane) materials, a filling layer 5 is arranged between the cable core 1 and the wrapping layer 2, and the filling layer 5 is formed by filling aramid fiber ropes; the cable core 1 comprises three cable cores 11 and a reinforcing core 12, the three cable cores 11 are mutually twisted around the reinforcing core 12, each cable core 11 comprises a soft copper conductor 111, and a TPU inner insulating layer 112 and an ethylene propylene rubber outer insulating layer 113 which are sequentially coated outside the soft copper conductor 111, the reinforcing core 12 is formed by twisting aramid fiber ropes around an elastic inner core 121, and the arrangement of the reinforcing core 12 improves the compactness and the structural strength of the cable core 1, so that the structural strength of the trailing cable is improved, and meanwhile, the tensile property and the torsion resistance of the trailing cable are improved; as shown in fig. 1 and fig. 2, the tensile buffer layer 3 sequentially includes a buffer inner layer 31, a tensile layer 32 and a buffer outer layer 33 from inside to outside, a circle of first protruding ridges 311 are arranged on the outer peripheral wall of the buffer inner layer 31 at intervals, a circle of second protruding ridges 331 are arranged on the inner peripheral wall of the buffer outer layer 33 at intervals, the second protruding ridges 331 and the first protruding ridges 311 are arranged in a staggered manner, the first protruding ridges 311 and the second protruding ridges 331 are in a meshed state with gaps, the tensile layer 32 is arranged in the gaps, the cross sections of the first protruding ridges 311 and the second protruding ridges 331 are both trapezoidal, a first buffer hole 6 is arranged in the middle of the first protruding ridges 311, a second buffer hole 7 is arranged in the middle of the second protruding ridges 331, the elastic inner core 121, the buffer inner layer 31 and the buffer outer layer 33 are both made of TPE elastomer materials, and the tensile layer 32 is woven of aramid fibers.

The principle of the utility model is as follows: in the utility model, the reinforced core 12 is formed by twisting aramid fiber ropes around the elastic inner core 121, the filling layer 5 is formed by filling the aramid fiber ropes, the tensile layer 32 is arranged inside the tensile buffer layer 3, the tensile layer 32 is formed by weaving the aramid fiber, the aramid fiber is a novel high-tech synthetic fiber and has ultrahigh strength, the strength of the steel wire is 5-6 times of that of the steel wire, the modulus of the steel wire is 2-3 times of that of the steel wire or glass fiber, the toughness of the steel wire is 2 times of that of the steel wire, the steel wire has good insulating property and ageing resistance, the life cycle is very long, and simultaneously, due to the arrangement of the first convex ribs 311 on the outer peripheral wall of the buffer inner layer 31 and the second convex ribs 331 on the inner peripheral wall of the buffer outer layer 33, the area of the tensile layer 32 is increased, and a stable structure is formed between the tensile layer 32 and the buffer inner layer 31 and the buffer outer layer 33, so that the tensile property of the trailing cable is remarkably improved; in the utility model, the middle part of the reinforcing core 12 is provided with an elastic inner core 121, the tensile buffer layer 3 sequentially comprises a buffer inner layer 31, a tensile layer 32 and a buffer outer layer 33 from inside to outside, a circle of first convex edges 311 are arranged on the peripheral wall of the buffer inner layer 31 at intervals, a circle of second convex edges 331 are arranged on the inner peripheral wall of the buffer outer layer 33 at intervals, the second convex edges 331 and the first convex edges 311 are arranged in a staggered manner, the middle part of the first convex edges 311 is provided with a first buffer hole 6, the middle part of the second convex edges 331 is provided with a second buffer hole 7, and the first convex edges 311 and the second convex edges 331 are in a meshing state with gaps, the elastic inner core 121, the buffer inner layer 31 and the buffer outer layer 33 are all made of TPE elastomer materials, when the towing cable is subjected to torsional force during operation, the deformation of the first buffer hole 6 and the second buffer hole 7 can occur, so as to buffer the torsional force, the first convex edges 311 and the second convex edges 331 can extrude each other to deform, the torsional force is further buffered, and the elastic inner core 121 can also play a role in buffering, so that the torsion resistance of the trailing cable is obviously improved, and the service life of the trailing cable is prolonged.

Claims (6)

1. A dragging cable of a coal digging machine is characterized by comprising a cable core, a wrapping layer, a tensile buffer layer and a sheath layer, wherein the wrapping layer, the tensile buffer layer and the sheath layer are sequentially coated outside the cable core, and a filling layer is arranged between the cable core and the wrapping layer;

the cable core comprises three wire cores and a reinforcing core, the three wire cores are twisted around the reinforcing core, each wire core comprises a soft copper conductor, and a TPU inner insulating layer and an ethylene propylene rubber outer insulating layer which are sequentially coated outside the soft copper conductor, and the reinforcing core is formed by twisting aramid fiber ropes around an elastic inner core;

tensile buffer layer from interior to exterior includes buffering inlayer, tensile layer and buffering skin in proper order, the interval is provided with the first bead of round on the periphery wall of buffering inlayer, the interval is provided with round second bead on the outer interior perisporium of buffering, the second bead with the crisscross setting of first bead, and first bead with the second bead is and has gapped meshing state, the tensile layer sets up in the clearance, the middle part of first bead is provided with first buffering hole, the middle part of second bead is provided with second buffering hole, elasticity inner core, buffering inlayer with the buffering skin all adopts TPE elastomeric material to make.

2. The coal shovel towing cable as claimed in claim 1, wherein the first rib and the second rib are each "trapezoidal" in cross-section.

3. The haulage cable for a coal mining machine as recited in claim 1, wherein the wrapping layer is formed by wrapping a non-woven fabric.

4. The coal shovel towing cable as claimed in claim 1, wherein the filler layer is filled with aramid fiber rope.

5. The coal shovel towing cable as set forth in claim 1 wherein the jacket layer is formed from a TPU material.

6. The coal dredger dragging cable of claim 1, wherein the tensile layer is woven from aramid fibers.

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