Cable towing device with coal cutter cable tension real-time monitoring and overload protection functions

Abstract

The utility model discloses a cable towing device with coal cutter cable tension real-time monitoring and overload protection functions, which comprises a cable towing frame body, a clamping plate block and a fixed cable clamping piece are arranged at the top of the cable towing frame body, a sliding cable clamping piece is arranged between the clamping plate block and the fixed cable clamping piece, a sliding channel opening is reserved at the top of the cable towing frame body, and the sliding channel opening is communicated with the cable towing frame body. A tension sensor is installed in the cable towing frame body, a U-shaped base is arranged at the bottom of the sliding cable clamping piece, and the U-shaped base penetrates through the sliding channel opening, extends into the cable towing frame body and then is connected with the tension sensor. The coal mining machine towing cable is simple and reliable in structure, the sliding cable clamping piece is arranged between the clamping plate block and the fixed cable clamping piece, and the tension sensor connected with the sliding cable clamping piece is arranged in the towing cable frame body, so that the coal mining machine towing cable has a cable tension real-time monitoring function, and the cable is prevented from being pulled out or broken. And when the tension value of the cable is increased to a set value, the coal mining machine is automatically pulled to stop, and the coal mining machine continues to work when the reset value returns to normal.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal mining machine cable protection devices, specifically relating to a cable-dragging device with real-time monitoring of coal mining machine cable tension and overload protection. Background Technology

[0002] During operation, electrically driven coal mining machines rely on incoming cables to transmit power and signals. In the complex and harsh working environment underground, these cables are constantly subjected to enormous tensile forces. When the tensile force exceeds the cable's tolerance, it can cause the cable to pull out or break, thus affecting the normal operation and production of the coal mining machine. Therefore, it is necessary to propose a cable-dragging device with real-time monitoring of the coal mining machine's cable tensile force and overload protection to prevent cable pull-out or breakage. Utility Model Content

[0003] The technical problem this invention aims to solve is to address the shortcomings of the existing technology by providing a cable-dragging device with real-time monitoring of coal mining machine cable tension and overload protection. This device features a simple and reliable structure with strong adaptability. It utilizes a sliding cable clamping component that can slide along the cable-dragging frame between the clamping plate and the fixed cable clamping component. A tension sensor connected to the sliding cable clamping component is installed within the cable-dragging frame, enabling real-time monitoring of the coal mining machine cable tension and preventing cable pull-out or breakage. When the cable tension increases to a set value, the coal mining machine automatically stops. Once the reset value returns to normal, the coal mining machine resumes operation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a cable-dragging device with real-time monitoring of the tension of a coal mining machine cable and overload protection, characterized in that: it includes a cable-dragging frame for detachable installation on the body of the coal mining machine; the top of the cable-dragging frame is provided with a clamping plate and a fixed cable clamp for fixing the cable; the clamping plate is used to fix one end of the cable clamp through which the coal mining machine cable passes; a sliding cable clamp for fixing the cable is provided between the clamping plate and the fixed cable clamp; the top of the cable-dragging frame has a reserved slide opening for sliding installation of the sliding cable clamp; a tension sensor is installed inside the cable-dragging frame; a U-shaped seat is provided at the bottom of the sliding cable clamp; the U-shaped seat extends through the slide opening into the inside of the cable-dragging frame and connects to the tension sensor.

[0005] The above-mentioned cable dragging device with real-time monitoring of the tension of coal mining machine cables and overload protection is characterized in that: the cable dragging frame includes a top plate and a bottom plate, two opposing vertical plates are arranged between the left and right sides of the top plate and the bottom plate, a detachable end face guard plate is arranged between the front sides of the top plate and the bottom plate, a back plate is arranged between the rear sides of the top plate and the bottom plate, and an arc plate is arranged on the outer side of both vertical plates.

[0006] The above-mentioned cable dragging device with real-time monitoring of the tension of coal mining machine cables and overload protection is characterized in that: an installation block for connecting an end face guard plate is provided inside the front side of the vertical plate, and the end face guard plate is connected to the installation block by screws.

[0007] The above-mentioned cable-dragging device with real-time monitoring of the tension of coal mining machine cables and overload protection is characterized in that: the cable-dragging frame is connected to the coal mining machine body by bolts, the rear side of the top plate extends to the rear side of the bottom plate, and the rear side of the top plate is provided with multiple bolt holes for bolt installation.

[0008] The above-mentioned cable-dragging device with real-time monitoring of the tension of coal mining machine cables and overload protection is characterized in that: a sensor mounting base for mounting a tension sensor is installed in the cable-dragging frame body, the sensor mounting base includes a bottom mounting plate connected to a base plate by bolts and a vertical mounting plate set on the bottom mounting plate, and the tension sensor is fixed to the vertical mounting plate of the sensor mounting base by screws.

[0009] The above-mentioned cable dragging device with real-time monitoring of the tension of coal mining machine cable and overload protection is characterized in that: one end of the tension sensor extends into the U-shaped seat, and the two are connected by a pin, one end of the pin is provided with a cotter pin, a washer is provided between the cotter pin and the U-shaped seat, and the washer passes through the pin.

[0010] The above-mentioned cable dragging device with real-time monitoring of the tension of coal mining machine cables and overload protection is characterized in that: the fixed cable clamping component includes a fixed clamp and a first pressure block fastened to the fixed clamp, the sliding cable clamping component includes a sliding clamp and a second pressure block fastened to the sliding clamp, and the fixed clamp and the first pressure block, as well as the sliding clamp and the second pressure block, are connected by screws.

[0011] The above-mentioned cable dragging device with real-time monitoring of the tension of coal mining machine cables and overload protection is characterized in that: the clamping plate is fixed to the top of the cable dragging frame by screws, and a key connects the top of the cable dragging frame and the clamping plate.

[0012] This utility model has the following advantages compared with the prior art:

[0013] 1. This utility model provides a sliding cable clamp between the clamping plate and the fixed cable clamp, allowing the cable to slide along the cable-dragging frame. A tension sensor is connected to the sliding cable clamp, enabling real-time monitoring of cable tension in the coal mining machine's cable, thus preventing cable pull-out or breakage. When the cable tension increases to a set value, the coal mining machine automatically stops. Once the reset value returns to normal, the machine resumes operation.

[0014] 2. By placing the tension sensor inside the towing cable frame, the tension sensor can be protected by the towing cable frame, thereby effectively preventing the tension sensor from being damaged by external forces.

[0015] In summary, this utility model has a simple and reliable structure with strong adaptability. By setting a sliding cable clamp between the clamping plate and the fixed cable clamp, which can slide along the cable dragging frame, and by installing a tension sensor connected to the sliding cable clamp inside the cable dragging frame, the coal mining machine's cable dragging cable has a real-time cable tension monitoring function, preventing cable pull-out or breakage. When the cable tension value increases to the set value, the coal mining machine automatically stops, and resumes operation after the reset value returns to normal.

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model after the end face guard plate has been removed.

[0019] Figure 3 This is a schematic diagram of the installation structure of the tension sensor of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the cable-stayed frame of this utility model.

[0021] Figure 5 This is a schematic diagram showing the location of the cable passage holes on the cable support frame of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1—Cable towing frame; 2—Clamping plate; 3—End face guard plate;

[0024] 4—Fixed latch; 5—Sliding latch; 6—Sensor mounting base;

[0025] 7—Force sensor; 8—Pin; 9—First pressure block;

[0026] 10—Key; 11—Bolt; 12—Bolt through hole;

[0027] 13—Washer; 14—Cotter pin; 15—Second pressure block;

[0028] 16—Slide opening; 17—U-shaped seat; 18—Wire guide hole;

[0029] 19—Top plate; 20—Curved plate; 21—Vertical plate;

[0030] 22—Back panel; 23—Base plate; 24—Mounting block;

[0031] 25—Screw. Detailed Implementation

[0032] like Figures 1 to 5 As shown, this utility model includes a cable-drafting frame 1 for detachable installation on the body of a coal mining machine. The top of the cable-drafting frame 1 is provided with a clamping plate 2 and a fixed cable clamp for fixing the cable. The clamping plate 2 is used to fix one end of the cable clamp through which the coal mining machine cable passes. A sliding cable clamp for fixing the cable is provided between the clamping plate 2 and the fixed cable clamp. The top of the cable-drafting frame 1 is reserved with a slide opening 16 for sliding installation of the sliding cable clamp. A tension sensor 7 is installed inside the cable-drafting frame 1. A U-shaped seat 17 is provided at the bottom of the sliding cable clamp. The U-shaped seat 17 extends through the slide opening 16 into the interior of the cable-drafting frame 1 and is connected to the tension sensor 7.

[0033] In actual use, a sliding cable clamp that can slide along the cable-dragging frame 1 is installed between the clamping plate 2 and the fixed cable clamp, and a tension sensor 7 is connected to the sliding cable clamp, enabling the coal mining machine to have a real-time cable tension monitoring function to prevent the cable from being pulled out or broken. When the cable tension value increases to the set value, the coal mining machine automatically stops, and resumes operation after the reset value returns to normal.

[0034] It should be noted that by placing the tension sensor 7 inside the towing cable frame 1, the tension sensor 7 can be protected by the towing cable frame 1, thereby effectively preventing the tension sensor 7 from being damaged by external forces.

[0035] In this embodiment, the cable support frame 1 includes a top plate 19 and a bottom plate 23. Two opposing vertical plates 21 are provided between the left and right sides of the top plate 19 and the bottom plate 23. A detachable end face guard plate 3 is provided between the front sides of the top plate 19 and the bottom plate 23. A back plate 22 is provided between the rear sides of the top plate 19 and the bottom plate 23. An arc plate 20 is provided on the outer side of each of the two vertical plates 21.

[0036] In actual use, the function of the arc plate 20 is to push the cable clamp. Both ends of the arc plate 20 are equipped with sealing plates, which in turn seal the space between the arc plate 20 and the vertical plate 21.

[0037] In this embodiment, the front side of the upright plate 21 is provided with a mounting block 24 for connecting the end face guard plate 3, and the end face guard plate 3 is connected to the mounting block 24 by screws 25.

[0038] In actual use, two mounting blocks 24 are arranged from top to bottom on the inner side of each upright plate 21.

[0039] In this embodiment, the cable support frame 1 is connected to the coal mining machine body by bolts 11, the rear side of the top plate 19 extends to the rear of the bottom plate 23, and the rear side of the top plate 19 is provided with a plurality of bolt through holes 12 for bolts 11 to be installed.

[0040] In actual use, the clamping plate 2, the sliding cable clamp and the fixed cable clamp are all set on the front top of the top plate 19, and the clamping plate 2, the sliding cable clamp and the fixed cable clamp are arranged in sequence from left to right.

[0041] In this embodiment, a sensor mounting base 6 for mounting a tension sensor 7 is installed inside the towing cable frame 1. The sensor mounting base 6 includes a bottom mounting plate connected to the base plate 23 by bolts and a vertical mounting plate disposed on the bottom mounting plate. The tension sensor 7 is fixed to the vertical mounting plate of the sensor mounting base 6 by screws.

[0042] In this embodiment, one end of the tension sensor 7 extends into the U-shaped seat 17, and the two are connected by a pin 8. One end of the pin 8 is provided with a cotter pin 14, and a washer 13 is provided between the cotter pin 14 and the U-shaped seat 17. The washer 13 passes through the pin 8.

[0043] In this embodiment, the fixed cable clamp includes a fixed clamp 4 and a first pressure block 9 fastened to the fixed clamp 4, and the sliding cable clamp includes a sliding clamp 5 and a second pressure block 15 fastened to the sliding clamp 5. The fixed clamp 4 and the first pressure block 9, as well as the sliding clamp 5 and the second pressure block 15, are connected by screws.

[0044] In this embodiment, the clamping plate 2 is fixed to the top of the tow cable frame 1 by screws, and a key 10 is connected between the top of the tow cable frame 1 and the clamping plate 2.

[0045] In specific implementation, the cable-hauling frame 1 is welded together from a top plate 19, an arc plate 20, a vertical plate 21, a back plate 22, a bottom plate 23, and a mounting block 24, and is equipped with an end face guard plate 3. The top plate 19 has bolt through holes 12 for connecting the cable-hauling frame to the coal mining machine body, a keyway for fixing the clamping plate 2, and a slide rail for installing the sliding slip 5.

[0046] The tension sensor 7 is fixed to the sensor mounting base 6 with M9×60 screws; the sensor mounting base 6 is fixed to the base plate 23 inside the cable frame 1 with M20×55 screws and M20 bolts, and the base plate 23 is provided with a groove for the sensor mounting base 6 to be installed; the U-shaped seat 17 at the bottom of the sliding slip 5 is inserted into the slide opening of the top plate 19, and the sliding slip 5 is connected and fixed to the tension sensor 7 by the pin 8, washer 13 and cotter pin 14; the data cable of the tension sensor 7 passes through the cable hole 18 of the back plate 22; the fixed slip 4 is fixed to the first pressure block 9 and the sliding slip 5 is fixed to the second pressure block 15 with M16×45 screws;

[0047] The fixing slip 4 is welded to the top plate 19; the clamping plate 2 is fixed to the top plate 19 with M16×40 screws; the key 10 is installed in the keyway between the clamping plate 2 and the top plate 19; the end face guard plate 3 is fixed to the mounting block 24 with M12×25 screws; the cable support frame 1 is connected to the coal mining machine body with M30×70 bolts.

[0048] When the coal mining machine is working, the cable passes through the pipe holes between the fixed slip 4 and the first pressure block 9 and between the sliding slip 5 and the second pressure block 15, and then enters the cable clamp plate connected to the end of the clamp plate 2. Subsequently, it is dragged along with the coal mining machine. At this time, the tension sensor 7 receives the force on the cable transmitted through the sliding slip 5, converts it into an electrical signal, and transmits the electrical signal to the electrical control box. This allows for real-time monitoring of the tension value of the coal mining machine cable. When the tension value increases to the set value, the coal mining machine automatically stops. After the reset value returns to normal, the coal mining machine continues to work.

[0049] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A cable-dragging device with real-time monitoring of the tension of coal mining machine cables and overload protection, characterized in that: The cable carrier includes a cable detachable mounting body (1) for use on the body of a coal mining machine. The top of the cable carrier (1) is provided with a clamping plate (2) and a fixed cable clamp for fixing the cable. The clamping plate (2) is used to fix one end of the cable clamp through which the coal mining machine cable passes. A sliding cable clamp for fixing the cable is provided between the clamping plate (2) and the fixed cable clamp. The top of the cable carrier (1) is reserved with a slide opening (16) for the sliding cable clamp to be slidably installed. A tension sensor (7) is installed inside the cable carrier (1). A U-shaped seat (17) is provided at the bottom of the sliding cable clamp. The U-shaped seat (17) extends through the slide opening (16) into the inside of the cable carrier (1) and is connected to the tension sensor (7).

2. A cable-dragging device according to claim 1, characterized in that: The cable-stayed frame (1) includes a top plate (19) and a bottom plate (23). Two opposing vertical plates (21) are provided between the left and right sides of the top plate (19) and the bottom plate (23). A detachable end face guard plate (3) is provided between the front sides of the top plate (19) and the bottom plate (23). A back plate (22) is provided between the rear sides of the top plate (19) and the bottom plate (23). An arc plate (20) is provided on the outer side of each of the two vertical plates (21).

3. A cable-dragging device according to claim 2, characterized in that: The front side of the upright plate (21) is provided with a mounting block (24) for connecting the end face guard plate (3), and the end face guard plate (3) is connected to the mounting block (24) by screws (25).

4. A cable-dragging device according to claim 2, characterized in that: The cable support frame (1) is connected to the coal mining machine body by bolts (11). The rear side of the top plate (19) extends to the rear of the bottom plate (23). The rear side of the top plate (19) has multiple bolt through holes (12) for bolt (11) installation.

5. A cable-dragging device according to claim 2, characterized in that: The cable frame (1) is equipped with a sensor mounting base (6) for mounting a tension sensor (7). The sensor mounting base (6) includes a bottom mounting plate connected to the base plate (23) by bolts and a vertical mounting plate set on the bottom mounting plate. The tension sensor (7) is fixed to the vertical mounting plate of the sensor mounting base (6) by screws.

6. A cable-dragging device according to claim 1, characterized in that: One end of the tension sensor (7) extends into the U-shaped seat (17), and the two are connected by a pin (8). One end of the pin (8) is provided with a cotter pin (14), and a washer (13) is provided between the cotter pin (14) and the U-shaped seat (17). The washer (13) passes through the pin (8).

7. A cable-dragging device according to claim 1, characterized in that: The fixed cable clamp includes a fixed clamp (4) and a first pressure block (9) fastened to the fixed clamp (4). The sliding cable clamp includes a sliding clamp (5) and a second pressure block (15) fastened to the sliding clamp (5). The fixed clamp (4) and the first pressure block (9) and the sliding clamp (5) and the second pressure block (15) are connected by screws.

8. A cable-dragging device according to claim 1, characterized in that: The clamping plate (2) is fixed to the top of the tow cable frame (1) by screws, and a key (10) is connected between the top of the tow cable frame (1) and the clamping plate (2).

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