CN219960081U - Automatic towing device of coal mining machine - Google Patents

Abstract

The utility model discloses an automatic towing device of a coal mining machine, which comprises a cable clamp assembly, wherein one end of the cable clamp assembly is connected to the towing device of the coal mining machine, bypasses a rotary cylinder on a far-end towing vehicle, passes through a bottom bracket at the lower part of a towing rope limiting device along the length direction of a cable trough, and the other end of the cable clamp assembly is arranged at a machine head; one end of the steel wire rope is connected to the towing rope limiting device, and the other end of the steel wire rope is fixed on the tail steel wire rope fixing frame; the tension sensor can respectively monitor and protect the tension of the cable clamp assembly and the tension of the steel wire rope in the reciprocating movement process in real time; the cable groove layering plate assembly divides the space in the cable groove into an upper layer, a middle layer and a lower layer; the relative positions of the machine head and the machine tail can be interchanged according to the left working surface and the right working surface. According to the utility model, external power is not needed, the cable clamp assembly does not fall off in the sliding process of the cable groove by means of synchronous movement of the coal mining machine, and the steel wire rope is not thrown out, so that the safety performance can be ensured.

Description

Automatic towing device of coal mining machine

Technical Field

The utility model relates to the field of coal mining mechanical equipment, in particular to an automatic towing device of a coal mining machine.

Background

In the working process of the coal mining machine, a power supply cable and a cooling water pipe are needed for supplying power to the coal mining machine and cooling and dust settling the coal mining machine, and the cable and the water pipe are generally arranged in a cable clamping plate. At present, a towing device of a coal mine working face coal mining machine mainly tows a cable and a water pipe through a cable clamp assembly, and the cable and the water pipe are reliably towed back and forth in a cable groove of a conveyor. The cable and the water pipe are installed in a cable trough of the scraper conveyor after entering the working surface and finally connected to the electric cabinet and the water valve. When the coal mining machine is used for cutting a thin coal seam, a large inclination angle and an automatic working face in a beveling mode, three layers of cable clamp assemblies are overlapped, cables and water pipes are easy to break, and the cable clamp assemblies exceed the height of a cable groove and are easy to fall out of the cable groove. Accordingly, there is an urgent need to develop an automatic streamer device in which the cable clamp assembly maintains two layers in the cable trough at all times.

To address the cable clamp assembly drag problem, automatic streamer devices have been developed in the marketplace, but most require separate external power. The external power system drives the cable clamp assembly to move, and although the problems are solved to a certain extent, an independent driving mechanism is added, and when the coal mining machine is suddenly stopped, the matched towing device cannot be stopped synchronously, and the cable clamp assembly is still overlapped, so that the cable and the water pipe are broken.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, provides an automatic towing device for a coal mining machine, realizes synchronous movement by means of self-powered coal mining machine, automatically drags a cable clamp assembly, realizes that the cable clamp assembly always keeps two layers in a cable groove, solves the problems that the cable clamp assembly is overlapped by three layers, is extremely easy to fall out of the groove during operation and needs manual towing and cable supporting, ensures that a steel wire rope cannot be thrown out, and improves the safety. The device is safe, reliable and stable, reduces the labor intensity of operators, and improves the working efficiency of the coal mining machine.

The utility model aims to achieve the aim, and the aim is achieved by the following technical scheme:

the utility model provides an automatic towing rope device of coal-winning machine, includes aircraft nose fixed pulley subassembly, cable clamp plate subassembly, middle part fixed pulley subassembly, towrope limit cable device, towrope device, cable clamp subassembly, towrope car, wire rope, tail fixed pulley subassembly, wire rope mount, cable groove layering board subassembly, aircraft nose fixed pulley spare fixed mounting is in scraper conveyor aircraft nose department, cable clamp plate subassembly installs the upper end at the scraper conveyor aircraft nose, middle part fixed pulley subassembly installs at scraper conveyor middle part groove, towrope limit cable device fixed mounting is on coal-winning machine one side walking case, towrope device side by side fixed mounting on coal-winning machine opposite side walking case, wire rope with towrope limit cable device with the towrope car links to each other, tail fixed pulley spare fixed mounting is in scraper conveyor tail department, wire rope mount fixed mounting is in scraper conveyor tail department, the towrope car walks in the cable groove, cable groove layering board subassembly passes through fastener fixed mounting in the cable groove.

The towing rope cable limiting device comprises a fixing plate, a connecting sleeve, a connecting rod, a bottom bracket and a towing rope device base, one side of the fixing plate is connected with the connecting sleeve, the connecting sleeve is connected with the connecting rod, the tail end of the connecting rod is connected with the bottom bracket, and the tail end of the bottom bracket is connected with the towing rope device base.

The lower end of the fixed plate is provided with a tension sensor connecting block, and the tension sensor connecting block is provided with a tension sensor.

One end of the cable clamp assembly is connected to the towing device, the cable clamp assembly bypasses the rotary cylinder on the towing vehicle, penetrates through the bottom bracket at the lower part of the towing rope limiting device along the length direction of the cable groove, and the other end of the cable clamp assembly is installed at the machine head through the cable clamp pressing plate assembly.

One end of the steel wire rope is connected to the towing rope limiting device, then is wound on the machine head fixed pulley assembly, is wound on the machine tail fixed pulley assembly after being changed, is wound on a pulley on the towing rope car after being changed, and is mounted on the steel wire rope fixing frame through the machine tail fixed pulley after being changed again.

The towing vehicle further comprises a towing vehicle base, the rotating cylinder comprises a first base with an opening at the upper end and a second T-shaped base, the rotating cylinder is installed in the first base, and the pulley is installed in the second T-shaped base.

The towing device base and the towing vehicle base are both limited in the middle layer space of the cable groove and reciprocate along the length direction of the cable groove, and the bottom bracket and the rotating cylinder of the towing vehicle are both limited in the upper layer space of the cable groove.

The cable trough layered plate assembly is provided with a plurality of groups, each group comprises a fully-closed plate, a narrow semi-closed plate and a wide semi-closed plate, the narrow semi-closed plates and the wide semi-closed plates are positioned at the upper ends of the fully-closed plates, the cable trough layered plate assembly is arranged in the cable trough in a segmented mode along the length direction of the cable trough by screw fasteners, and the space of the cable trough is divided into an upper layer, a middle layer and a lower layer.

The narrow semi-enclosed plate and the wide semi-enclosed plate are open in the width direction within the cable trough.

The hydraulic cylinder is further included, and the towing device base is indirectly connected with the steel wire rope through the hydraulic cylinder.

The machine head fixed pulley assembly comprises a machine head fixed pulley frame, a machine head fixed pulley shield, fixed pulleys, self-lubricating bearings, a mandrel and pressing plates, wherein the machine head fixed pulley frame is fixedly arranged on a scraper conveyor through bolt fasteners, the machine head fixed pulley shield is fixedly arranged on the machine head fixed pulley frame through bolt fasteners, the two self-lubricating bearings are respectively arranged on the two fixed pulleys and are respectively fixedly arranged in the machine head fixed pulley frame through the two mandrels, and the two pressing plates are respectively fixedly arranged on the machine head fixed pulley frame at the position of the mandrel through the bolt fasteners.

The middle fixed pulley assembly comprises a middle fixed pulley frame, a fixed pulley, a self-lubricating bearing, a mandrel and a pressing plate, wherein the middle fixed pulley frame is welded into a U shape by a steel plate, the self-lubricating bearing is placed in the fixed pulley and is placed in the middle fixed pulley frame together with the fixed pulley, the mandrel penetrates through the self-lubricating bearing and the middle fixed pulley frame to fix the self-lubricating bearing, the fixed pulley can rotate around the self-lubricating bearing, and the pressing plate is fixed on the middle fixed pulley frame through a bolt fastener.

The towing rope cable limiting device comprises a fixing plate, a connecting sleeve, a towing force sensor connecting block, a connecting rod, a connecting frame, a bottom bracket, a towing force sensor base and a towing force sensor protection joint, wherein the fixing plate is fixedly installed on a traveling box top plate of the coal mining machine through a bolt fastener, the connecting sleeve is limited on an upper plate extending out of a cylinder through a gasket and a nut, the connecting rod is limited in the connecting sleeve through a pin shaft, the connecting frame is connected with the connecting rod through a pin shaft, the bottom bracket is fixedly installed on the connecting frame through a screw fastener, the towing force sensor base is connected with the bottom bracket through the bolt fastener, the towing force sensor connecting block is fixedly installed on the fixing plate through the bolt fastener, and the towing force sensor protection joint is fixedly installed on the towing force sensor connecting block through the screw fastener.

The towing device comprises a mounting plate, a sensor upper cover, a sensor lower cover, a towing bracket, a connecting plate, a first tension sensor protection joint, a first tension sensor rubber pad and a first tension sensor connecting block, wherein the mounting plate is fixedly mounted on a traveling box top plate of the coal mining machine through bolts, the sensor upper cover and the sensor lower cover are fixedly mounted on the mounting plate through bolts, the towing bracket is mounted at one end of the mounting plate through a pin shaft, a plurality of connecting plates are connected through the pin shaft, one end of each connecting plate is connected to the sensor lower cover, one end of each connecting plate is connected to the lower end connecting plate, the first tension sensor protection joint is mounted on the sensor lower cover through a screw, the first tension sensor rubber pad is fixedly mounted in the sensor lower cover, and the first tension sensor connecting block is fixedly mounted at one end of the mounting plate through a screw to fix the upper cover and the lower cover of the sensor.

The machine tail fixed pulley assembly comprises a machine tail fixed pulley frame, a machine tail fixed pulley shield, a fixed pulley I, a self-lubricating bearing I, a mandrel I and a pressing plate I, wherein the machine tail fixed pulley frame is fixedly arranged on a scraper conveyor through bolts, the machine tail fixed pulley shield is fixedly arranged on the machine tail fixed pulley frame through bolts, the two self-lubricating bearings I are respectively arranged on the two fixed pulleys I and are respectively fixedly arranged in the machine tail fixed pulley frame through the two mandrel I, and the two pressing plate I are respectively fixedly arranged on the machine tail fixed pulley frame at the position of the mandrel I through bolts.

The steel wire rope fixing frame comprises a steel wire rope fixing frame formed by welding steel plates, and is fixedly arranged on the scraper conveyor through a bolt fastener.

The towing vehicle comprises a towing vehicle frame, a rotary cylinder, a towing vehicle base, a self-lubricating bearing and a pulley, wherein the rotary cylinder is made of polytetrafluoroethylene, the rotary cylinder is sleeved on the towing vehicle frame and limited by a long bolt fastener, the towing vehicle base is fixedly arranged below the towing vehicle frame by the bolt fastener, the self-lubricating bearing is arranged on the pulley, and the self-lubricating bearing is fixedly arranged in a towing vehicle base cavity by a pin shaft.

The machine head fixed pulley assembly and the machine tail fixed pulley assembly are respectively arranged at the machine head and the two ends of the machine tail of the scraper conveyor, the cable clamp pressing plate assembly is fixedly arranged on the machine head fixed pulley assembly through bolt fasteners, the machine head, the middle part and the machine tail fixed pulley assembly provide guidance and restraint for the steel wire rope, the steel wire rope fixing frame is used for limiting the steel wire rope, the towing rope limiting device and the towing rope vehicle provide power and direction for the steel wire rope, one end of the steel wire rope is connected to the base of the towing rope limiting device, and the cable clamp pressing plate assembly bypasses the pulleys on the towing rope vehicle through the machine head, the middle part and the machine tail fixed pulley assembly and is finally fixed at the machine tail of the scraper conveyor through the steel wire rope fixing frame.

When the coal mining machine runs along the working surface, the cable clamp assembly is used for bearing the drag force so as to protect the cable and the water pipe, meanwhile, the cable clamp assembly can prevent smashing, the drag is stable and small in resistance, and the cable and the water pipe are guaranteed to drag back and forth in the cable groove of the scraper conveyor reliably.

The towing device is selectively arranged on the upper part of the right walking reduction gearbox frame or the electric cabinet according to the left working surface and the right working surface, so that a cable can smoothly enter the electric cabinet. The cable and the water pipe enter the cable groove after reaching the working face machine head, pass through the two-way cable clamp assembly, pass through the towing rope cable limiting device, then bypass the towing rope vehicle and be connected with the towing rope device, the lengths of the cable clamp assembly, the cable and the water pipe are approximately equal to the length of the working face in the arrangement mode, and the length of the steel wire rope is approximately twice the length of the working face.

The towing rope cable limiting device is selectively arranged at the upper part of the left or right travelling box body according to the left and right working surfaces, and has the main functions of towing the steel wire rope and smoothing the cable clamp assembly, and providing power and smoothing for the movement of the cable clamp assembly in a cable duct of the scraper conveyor; the towing winch is arranged between the coal mining machine and the tail of the scraper conveyor, when the coal mining machine pulls towards the direction of the machine head, the towing winch is dragged by the towing rope device, and the steel wire rope is dragged by the pulley and the pulley block of the towing winch to drive the towing rope limiting device to move towards the direction of the machine head; when the coal mining machine pulls towards the tail direction, the towing rope limiting device drags the steel wire rope, and the towing rope vehicle is pulled through the pulley block to tension the cable clamp assembly to move towards the tail direction.

The automatic towing device of the self-powered coal mining machine further comprises a tension sensor, wherein the tension sensor is respectively arranged at the tops of the towing rope cable limiting device and the towing rope device and comprises a tension sensor connecting block and a tension sensor protection joint.

The automatic towing device of the self-powered coal mining machine further comprises a hydraulic cylinder, and the lower part of the towing rope limiting device is indirectly connected with the steel wire rope through the hydraulic cylinder.

The beneficial effects of the utility model are as follows:

the cable dragging vehicle and the cable dragging limiting device are connected through the steel wire rope, so that the cable clamp assembly can be matched with the cable clamp assembly at the same moving traction speed when the coal mining machine is in traction and walking, the cable clamp assembly always keeps two layers in the cable groove, and the problems that the cable clamp assembly is easy to fall out of the groove when being overlapped with three layers and the cable is required to be manually dragged and held when the cable clamp assembly is in operation are effectively solved.

The cable clamp assembly is in an upper layer and a lower layer, the lower layer cable clamp assembly penetrates through the bottom bracket of the towing rope cable limiting device, on one hand, the bottom bracket can smooth the cable clamp assembly which penetrates through the bottom bracket in sequence, and on the other hand, the bottom bracket can clean foreign matters such as coal blocks beside the layer cable clamp assembly. Meanwhile, the lower cable clamp assembly can play a sealing role on the steel wire ropes behind the advancing direction of the coal mining machine, so that the steel wire ropes are prevented from being broken and thrown out due to overlarge stress, and the damage to field operators is avoided.

The machine head, middle part and machine tail fixed pulley component adopts a closed structure, so that the steel wire rope can be effectively closed and protected during reversing, and the steel wire rope is prevented from causing larger abrasion to other related equipment.

The bottom of the towing rope limiting device is indirectly connected with the steel wire rope through the hydraulic cylinder, so that the tensioning length of the steel wire rope can be adjusted on one hand, and on the other hand, the length change compensation can be carried out on the steel wire rope when the coal mining machine is in beveling feeding.

The tension sensor is respectively arranged on the towing rope limiting device and the towing rope device, can monitor the tension used by the passing cable clamp assembly and the steel wire rope, and can protect the steel wire rope.

Drawings

FIG. 1 is a schematic illustration of the installation of one embodiment of the present utility model;

FIG. 2 is a schematic diagram of an embodiment of the tow rope restraining device of the present utility model;

FIG. 3 is a schematic structural view of one embodiment of the towing vehicle of the present utility model;

FIG. 4 is a schematic view of an embodiment of the cable trough lamina assembly of the present utility model;

FIG. 5 is a schematic diagram showing the installation state of the towing rope limiting device according to the present utility model;

FIG. 6 is a schematic view of the mounted state of the streamer device of the present utility model;

FIG. 7 is a schematic view of the installation state of the towing vehicle according to the present utility model;

FIG. 8 is a schematic view of the hydraulic cylinder installation state of the present utility model;

FIG. 9 is a schematic structural view of an embodiment of the nose block and tackle assembly of the present utility model;

FIG. 10 is a schematic view of an embodiment of the intermediate fixed sheave assembly of the present utility model;

FIG. 11 is a schematic structural view of an embodiment of the streamer device of the present utility model;

fig. 12 is a schematic view of an embodiment of the tail pulley assembly of the present utility model.

In the figure: 1. a nose fixed pulley assembly; 1-1, a machine head fixed pulley shield; 1-2, a machine head fixed pulley frame; 1-3, fixed pulleys; 1-4, pressing plate; 1-5, a mandrel; 1-6, self-lubricating bearing;

2. a cable clamp plate assembly;

3. a middle fixed pulley assembly; 3-1, a middle fixed pulley frame; 3-2, fixed pulleys; 3-3, self-lubricating bearing; 3-4, a mandrel; 3-5, pressing plate;

4. a towing rope cable limiting device; 4-1, a fixing plate; 4-2, connecting the sleeve; 4-3, connecting blocks of the tension sensor; 4-4, connecting rods; 4-5, bottom bracket; 4-6, towing device base; 4-7, connecting frames; 4-8, protecting a joint by a tension sensor;

5. a streamer device; 5-1, a tension sensor connecting block I; 5-2, a sensor lower cover; 5-3, connecting plates; 5-4, a tension sensor rubber pad; 5-5, protecting the first connector by the tension sensor; 5-6, mounting plate; 5-7, a bracket; 5-8, a sensor upper cover;

6. a cable clamp assembly; 7. a cable car; 7-1, rotating the cylinder; 7-2, towing vehicle base; 7-3, pulleys; 8. a wire rope;

9. a tail fixed pulley assembly; 9-1, a tail fixed pulley frame; 9-2, a fixed pulley shield at the tail of the machine; 9-3, a fixed pulley I; 9-4, self-lubricating a first bearing; 9-5, mandrel one; 9-6, pressing plate I;

10. a steel wire rope fixing frame; 11-1, a full-closed plate; 11-2, a narrow semi-enclosed panel; 11-3, wide semi-closed panels; 12. a coal mining machine; 13. and a hydraulic cylinder.

Detailed Description

The utility model discloses an automatic towing device of a coal mining machine, which comprises a machine head fixed pulley assembly 1, a cable clamping and pressing plate assembly 2, a middle fixed pulley assembly 3, a towing rope limiting device 4, a towing rope device 5, a cable clamping assembly 6, a towing vehicle 7, a steel wire rope 8, a machine tail fixed pulley assembly 9, a steel wire rope fixing frame 10, a cable trough layering plate assembly, the coal mining machine 12 and a hydraulic cylinder 13. The towing rope cable limiting device 4 comprises a fixing plate 4-1, a connecting sleeve 4-2, a tension sensor connecting block 4-3, a connecting rod 4-4, a bottom bracket 4-5 and a towing rope device base 4-6. The streamer device 5 comprises a tension sensor coupling 5-1. The towing vehicle 7 includes a rotating drum 7-1, a towing vehicle base 7-2, and a pulley 7-3. The cable trough layered plate assembly comprises a fully-closed plate 11-1, a narrow semi-closed plate 11-2 and a wide semi-closed plate 11-3, wherein the narrow semi-closed plate 11-2 and the wide semi-closed plate 11-3 are arranged on the same plane in a segmented mode along the length direction of the cable trough, a long and narrow opening is formed between the two semi-closed plates, the fully-closed plate 11-1 and the two semi-closed plates 11-2 and 11-3 are detachably fixed in the cable trough and divide the space in the cable trough into an upper layer, a middle layer and a lower layer which are communicated through the long and narrow opening, the upper layer is opened, the lower layer is closed, and the fully-closed plate 11-1 and the semi-closed plates 11-2 and 11-3 are fixedly mounted in the cable trough through screw fasteners, so that the assembly and the disassembly are convenient. The towing rope limiting device 4, the towing rope device base 4-6 and the towing rope vehicle base 7-2 of the towing rope limiting device 4 are both limited in a middle layer space of a cable groove and move reciprocally along the length direction of the cable groove, the bottom bracket 4-5 of the towing rope limiting device 4 and the rotating cylinder 7-1 of the towing rope vehicle 7 are both limited in an upper layer space of the cable groove, and joints between the bottom bracket 4-5 and the towing rope device base 4-6 of the towing rope limiting device 4 and the rotating cylinder 7-1 and the towing rope vehicle base 7-2 of the towing rope vehicle 7 are both limited to pass through long and narrow openings between two semi-closed plates 11-2 and 11-3 with different widths. The middle fixed pulley assembly 3 is distributed in the lower space of the cable groove layered plate assembly along the length direction of the cable groove and is close to the mining side, and is fixedly installed on the fully-closed plate 11-1 through a screw fastener.

The machine head fixed pulley assembly 1 and the machine tail fixed pulley assembly 9 are respectively arranged at the machine head and the machine tail of the scraper conveyor. The towing rope cable limiting device 4 is fixedly arranged on the travelling box of the coal mining machine through the fixing plate 4-1, is relatively static with the machine body of the coal mining machine, and moves along with the coal mining machine at the same speed.

The cable clamp pressing plate assembly 2 is fixedly arranged on the machine head fixed pulley assembly 1, plays a role of fixing the cable clamp assembly 6, one end of the cable clamp assembly 6 is connected to the towing rope device 5, then bypasses the rotary cylinder 7-1 on the towing rope vehicle 7, penetrates through the bottom bracket 4-5 on the towing rope cable limiting device 4 along the length direction of a cable groove, and the other end of the cable clamp pressing plate assembly is fixedly arranged on the machine head fixed pulley assembly 1 by the cable clamp pressing plate assembly 2. In the working process of the coal mining machine, the cable clamp assembly 6 is divided into an upper layer and a lower layer, the rotating cylinder 7-1 of the towing vehicle 7 is taken as a boundary, one section of the cable clamp assembly 6 between the towing device 5 and the rotating cylinder 7-1 is an upper layer, the part between the rotating cylinder 7-1 and the cable clamp pressing plate assembly 2 is a lower layer, and the cable clamp assembly 6 at the lower layer passes through the bottom bracket 4-5 of the towing rope limiting cable device 4.

One end of the steel wire rope 8 is connected to the towing rope device base 4-6 of the towing rope limiting device 4, then is wound on the machine head fixed pulley assembly 1, is wound on the machine tail fixed pulley assembly 9 through the middle fixed pulley assembly 3 after the steering is finished, is wound on the pulley 7-3 on the towing rope vehicle 7 after the steering is finished, is fixedly arranged on the machine tail of the scraper conveyor through the steel wire rope fixing frame 10 after the steering is finished again through the machine tail fixed pulley. The cable clamp assembly 6 and the fixed end of the steel wire rope 8 on the scraper conveyor are positioned at the head of the scraper conveyor, and positioned at the tail of the scraper conveyor, but the moving direction of the towing winch 7 connected with the cable clamp assembly 6 and the moving direction of the towing rope limiting device 4 connected with the steel wire rope 8 are the same as the moving direction of the coal mining machine.

Cables and water pipes for the coal mining machine are arranged in the cable clamp assembly 6. The lower layer of the cable clamp assembly 6 passes through the bottom bracket 4-5 of the towing rope cable limiting device 4, the bottom bracket 4-5 can play a role of smoothing out the cable clamp assembly 6 passing through, play a role of cleaning foreign matters such as coal blocks on the cable clamp assembly 6 passing through, play a role of sealing the steel wire rope 8 below the cable clamp assembly 6, and prevent the steel wire rope 8 of the section from being stressed too much to break and throw out to cause injury to field operators.

The towing device 5 is arranged on the upper part of a right walking reduction gearbox frame or an electric cabinet of the coal mining machine, so that a cable can smoothly enter the electric cabinet. The cable and the water pipe enter the cable groove after reaching the head position of the working surface, are arranged in the cable clamp assembly 6, pass through the towing rope limiting device 4 and then bypass the towing rope vehicle 7 to be connected with the towing rope device 5, the lengths of the cable clamp assembly 6, the cable and the water pipe are about equal to the length of the working surface in the arrangement mode, and the length of the steel wire rope 8 is about twice the length of the working surface.

The towing rope cable limiting device 4 is selectively arranged at the upper part of a left or right travelling box body of the coal mining machine according to left and right working surfaces, and has the main functions of straightening down the cable clamp assembly 6 and dragging the steel wire rope 8 to provide power for the movement of the cable clamp assembly 6 in a cable groove of the scraper conveyor, and the towing vehicle 7 is arranged between the coal mining machine and the tail of the scraper conveyor. When the coal mining machine pulls towards the direction of the machine head, the towing device 5 drags the towing vehicle 7 to move, and the steel wire rope 8 is dragged through the pulley 7-3 and the pulley block of the towing vehicle 7 to drive the towing rope limiting device 4 to move towards the direction of the machine head; when the coal mining machine pulls towards the tail direction, the towing rope limiting device 4 drags the steel wire rope 8 to move, and the towing winch 7 is pulled through the pulley block to tension the cable clamp assembly 6 to move towards the tail direction.

The automatic towing device of the self-powered coal mining machine is fixedly arranged on a cable trough of a scraper conveyor at the mining side of the coal mining machine, and is convenient to disassemble and assemble.

The fixed plate 4-1 of the towing rope cable limiting device 4 is connected with the bottom bracket 4-5 through the connecting sleeve 4-2 and the connecting rod 4-4, the connecting sleeve 4-2 is fixed with the fixed plate 4-1 through a cylindrical shaft and a nut, the connecting sleeve 4-2 can swing along the length direction of a cable groove, the connecting sleeve 4-2 is connected with the connecting rod 4-4 through a pin shaft, the effect of swinging at a certain inclination angle can be achieved, the connecting rod 4-4 is connected with the bottom bracket 4-5 through a distribution shaft, and the towing rope cable limiting device 4 can swing back and forth in the towing process of the cable clamp assembly 6, so that the reciprocating movement of the cable clamp assembly 6 is more facilitated.

The tension sensor connecting block 4-3 is arranged on the fixed plate 4-1, and is fixedly arranged on the fixed plate 4-1 by using a screw fastener, so that the stress of the cable clamp assembly 6 and the steel wire rope 8 in the reciprocating dragging process can be monitored and protected in real time, and the stress is fed back to the control platform in time.

The towing device 5 is provided with the tension sensor connecting block 5-1, and is fixedly arranged on a towing pin shaft by using a screw fastener, so that the stress of the cable clamp assembly 6 and the steel wire rope 8 in the reciprocating towing process can be monitored and protected in real time, and the stress is fed back to a control platform in time.

The narrow semi-closed plates 11-2 of two different widths in the cable tray layered plate assembly and the long and narrow openings in the middle of the wide semi-closed plates 11-3 are not positioned in the middle, but are positioned on the inclined mining side in the width direction of the cable tray.

The automatic towing device of the self-powered coal mining machine is further provided with a hydraulic cylinder 13, the towing rope limiting device 4 is indirectly connected with the steel wire rope 8 through the hydraulic cylinder 13, a mounting seat of the hydraulic cylinder 13 is arranged on the towing rope device base 4-6, and the hydraulic cylinder 13 is used for adjusting the tightness degree of the steel wire rope 8.

When the coal mining machine starts to operate, the automatic towing rope device of the self-powered coal mining machine sequentially drives the towing rope limiting device 4, the hydraulic cylinder 13, the towing winch 7 and the steel wire rope 8, so that the cable clamp assembly 6 and the coal mining machine 12 are driven to reciprocate in the same direction and at the same speed, and the cable clamp assembly 6 can be kept in a state of being always stretched in an upper layer and a lower layer.

The power source of the self-powered coal mining machine self-powered towing device is the self-traction force of the coal mining machine, so that a frequency conversion speed regulating mechanism with the same speed as the coal mining machine is not additionally arranged in a roadway, and the cost of equipment can be greatly reduced.

According to the self-powered automatic towing device for the coal mining machine, as shown in fig. 1, when the coal mining machine moves in a right traction mode, the towing rope limiting device 4 moves right along with the coal mining machine at the same speed, meanwhile, the hydraulic cylinder 13 pulls the upper layer of steel wire ropes 8 to move right, the lower layer of steel wire ropes 8 move left through the middle fixed pulley assembly 3 in a cable groove, after reversing is completed at the tail fixed pulley assembly 9, the steel wire ropes 8 pull the towing rope 7 to move right through the pulleys 7-3 at the lower part of the towing rope 7, and meanwhile, the towing rope 7 pulls the upper layer of cable clamp assembly 6 to move right.

When the coal mining machine moves in a left traction mode, as shown in fig. 1, the towing device 5 moves left along with the coal mining machine at the same speed, meanwhile, the upper layer of the cable clamp assembly 6 is pulled to move left, the cable clamp assembly 6 is synchronously moved left around the towing vehicle 7, the upper layer of the steel wire rope 8 around the pulley 7-3 moves left along with the cable clamp assembly 6, the lower layer of the steel wire rope 8 is pulled to move right through the middle fixed pulley assembly 3 in the cable groove, and the steel wire rope 8 pulls the towing rope limiting device 4 to move left through the hydraulic cylinder 13 after reversing is completed at the machine head fixed pulley assembly 1 and moves at the same speed with the coal mining machine, so that reciprocating circulation motion is achieved.

Claims (10)

1. The utility model provides an automatic towing rope device of coal-winning machine, includes aircraft nose fixed pulley subassembly (1), cable clamp plate subassembly (2), middle part fixed pulley subassembly (3), towline limit cable device (4), towline device (5), cable clamp subassembly (6), towline car (7), wire rope (8), tail fixed pulley subassembly (9), wire rope mount (10), cable groove layering board subassembly, its characterized in that: the cable clamp pressing plate assembly (2) is arranged at the upper end of the scraper conveyor head, the middle fixed pulley assembly (3) is arranged in a middle groove of the scraper conveyor, the towing rope limiting cable device (4) is fixedly arranged on a traveling box on one side of the coal mining machine, the towing rope device (5) is fixedly arranged on the traveling box on the other side of the coal mining machine side by side, the steel wire rope (8) is connected with the towing rope limiting cable device (4) and the towing rope trolley (7), the tail fixed pulley assembly (9) is fixedly arranged at the tail of the scraper conveyor, the steel wire rope fixing frame (10) is fixedly arranged at the tail of the scraper conveyor, the towing rope trolley (7) travels in a cable groove, the cable groove layering plate assembly is fixedly arranged in the cable groove through a screw fastener, each group of the cable groove layering plate assembly comprises a plurality of groups of full-closed plates (11-1), narrow semi-closed plates (11-2) and wide semi-closed plates (11-3), and the narrow semi-closed plates (11-3) are arranged in the cable groove, and the narrow semi-closed plates (11-2) are arranged in the cable groove.

2. The automatic streamer device for a coal mining machine according to claim 1, wherein: the towing rope cable limiting device (4) comprises a fixing plate (4-1), a connecting sleeve (4-2), a connecting rod (4-4), a bottom bracket (4-5) and a towing rope device base (4-6), one side of the fixing plate (4-1) is connected with the connecting sleeve (4-2), the connecting sleeve (4-2) is connected with the connecting rod (4-4), the tail end of the connecting rod (4-4) is connected with the bottom bracket (4-5), the tail end of the bottom bracket (4-5) is connected with the towing rope device base (4-6), a tension sensor connecting block (4-3) is arranged at the lower end of the fixing plate (4-1), and a tension sensor is arranged on the tension sensor connecting block (4-3), and the towing rope device base (4-6) is indirectly connected with the steel wire rope (8) through a hydraulic cylinder (13).

3. The automatic streamer device for a coal mining machine according to claim 2, wherein: one end of the cable clamp assembly (6) is connected to the towing rope device (5), the cable clamp assembly (6) bypasses a rotary cylinder (7-1) on the towing vehicle (7), penetrates through a bottom bracket (4-5) at the lower part of the towing rope limiting device (4) along the length direction of a cable groove, and the other end of the cable clamp assembly is installed at a machine head by the cable clamp plate assembly (2).

4. A shearer loader streamer device as claimed in claim 3, wherein: one end of the steel wire rope (8) is connected to the towing rope limiting device (4), then is wound on the machine head fixed pulley assembly (1), is wound on the machine tail fixed pulley assembly (9) through the middle fixed pulley assembly (3) after the steering is finished, is wound on the pulley (7-3) on the towing vehicle (7) after the steering is finished, and is mounted on the steel wire rope fixing frame (10) through the fixed pulley at the machine tail after the steering is finished again.

5. The automatic streamer device for a coal mining machine according to claim 4, wherein: the towing vehicle (7) further comprises a towing vehicle base (7-2), the rotating cylinder (7-1) comprises a base I with an opening at the upper end and a T-shaped base II, the rotating cylinder (7-1) is installed in the base I, and the pulley (7-3) is installed in the T-shaped base II.

6. The automatic streamer device for a coal mining machine according to claim 5, wherein: the towing device base (4-6) and the towing vehicle base (7-2) are both defined in the cable trough middle layer space, and the bottom bracket (4-5) and the rotating cylinder (7-1) of the towing vehicle (7) are both defined in the cable trough upper layer space.

7. The automatic streamer device for a coal mining machine according to claim 1, wherein: the narrow semi-closed plate (11-2) and the wide semi-closed plate (11-3) are positioned at the upper end of the fully-closed plate (11-1), and a plurality of groups of cable groove layered plate assemblies are arranged in the cable groove in a segmented manner along the length direction of the cable groove by screw fasteners, so that the space of the cable groove is divided into an upper layer, a middle layer and a lower layer.

8. The automatic streamer device for a coal mining machine according to claim 1, wherein: the middle fixed pulley assembly comprises a middle fixed pulley frame (3-1), a fixed pulley (3-2), a self-lubricating bearing (3-3), a mandrel (3-4) and a pressing plate (3-5), wherein the middle fixed pulley frame (3-1) is welded into a U shape by a steel plate, the self-lubricating bearing (3-3) is placed in the fixed pulley (3-2) and is placed in the middle fixed pulley frame (3-1) together with the fixed pulley (3-2), the mandrel (3-4) penetrates through the self-lubricating bearing (3-3) and the middle fixed pulley frame (3-1), the fixed pulley (3-2) rotates around the self-lubricating bearing (3-3), and the pressing plate (3-5) is fixed on the middle fixed pulley frame (3-1) through a fastener.

9. The automatic streamer device for a coal mining machine according to claim 1, wherein: the towing rope cable limiting device comprises a fixing plate (4-1), a connecting sleeve (4-2), a tension sensor connecting block (4-3), a connecting rod (4-4), a connecting frame (4-7), a bottom bracket (4-5), a towing rope device base (4-6) and a tension sensor protection joint (4-8), wherein the fixing plate (4-1) is fixedly arranged on a traveling box top plate of the coal mining machine through a fastener, the connecting sleeve (4-2) is limited on an upper plate extending out of a cylinder through a gasket and a nut, the connecting rod (4-4) is limited in the connecting sleeve (4-2) through a pin shaft, the connecting frame (4-7) is connected with the connecting rod (4-4) through a pin shaft, the bottom bracket (4-5) is fixedly arranged on the connecting frame (4-7) through a fastener, the towing rope device base (4-6) is connected with the bottom bracket (4-5) through a fastener, the tension sensor connecting block (4-3) is fixedly arranged on the fixing plate (4-1) through a fastener, and the tension sensor protection joint (4-8) is fixedly arranged on the tension sensor (4-3) through the fastener;

the towing device comprises a mounting plate (5-6), a sensor upper cover (5-8), a sensor lower cover (5-2), a towing bracket (5-7), a connecting plate (5-3), a tension sensor protection joint I (5-5), a tension sensor rubber pad (5-4) and a tension sensor connecting block I (5-1), wherein the mounting plate (5-6) is fixedly mounted on a traveling box top plate of the coal mining machine through bolts, the sensor upper cover (5-8) and the sensor lower cover (5-2) are fixedly mounted on the mounting plate (5-6) through fasteners, the towing bracket (5-7) is mounted at one end of the mounting plate (5-6) through a pin shaft, a plurality of connecting plates (5-3) are connected through pin shafts, one end of each connecting plate is connected to the sensor lower cover (5-2), one end of each connecting plate is connected to the connecting plate (5-3) at the lower end, the tension sensor protection joint I (5-5) is mounted on the sensor lower cover (5-2) through the fasteners, the tension sensor rubber pad (5-4) is fixedly mounted in the sensor lower cover (5-2) through the fasteners, and one end of each connecting plate is fixedly mounted on the sensor lower cover (5-6) through the fasteners.

10. The automatic streamer device for a coal mining machine according to claim 1, wherein: the machine tail fixed pulley assembly comprises a machine tail fixed pulley frame (9-1), a machine tail fixed pulley shield (9-2), a fixed pulley I (9-3), a self-lubricating bearing I (9-4), a mandrel I (9-5) and a pressing plate I (9-6), wherein the machine tail fixed pulley frame (9-1) is fixedly arranged on a scraper conveyor through a fastener, the machine tail fixed pulley shield (9-2) is fixedly arranged on the machine tail fixed pulley frame (9-1) through a fastener, two self-lubricating bearings I (9-4) are respectively arranged on the two fixed pulleys I (9-3), and are respectively fixedly arranged in the machine tail fixed pulley frame (9-1) through two mandrels I (9-5), and the two pressing plates I (9-6) are respectively fixedly arranged on the machine tail fixed pulley frame (9-1) where the mandrel I (9-5) is arranged through the fastener.