A new tow cable device that can measure real-time tension

Abstract

The present application relates to a novel towing cable device capable of measuring real-time tension, comprising: a base mounted on a coal mining machine body, a top cover slidably connected to the top of the base, a mounting cavity formed between the base and the top cover, a tension sensor disposed within the mounting cavity between the base and the top cover, a fixing pin detachably connected to the tension sensor and the base, a shear pin detachably connected to the tension sensor and the top cover, a fixing seat connected to the top cover for fixing cables and water pipes, a fixing cover threadedly connected to the top of the fixing seat, two lugs connected to the tension sensor, each of which is detachably connected to a towing chain. The present application has the effect of providing real-time feedback on the tension experienced by cables and water pipes, providing timely warning of cable and water pipe jams, and facilitating timely troubleshooting for users.

Description

Technical Field

[0001] The present application relates to the field of engineering machinery, and in particular to a novel towing cable device capable of measuring real-time tension. Background Art

[0002] A shearer is one of the key components of a fully mechanized mining system. It is a large, complex system integrating mechanical, electrical, and hydraulic functions. It operates in a harsh environment, and any failure will disrupt the entire mining process, resulting in significant economic losses.

[0003] Existing shearers simultaneously drag a cable and a water pipe while traveling. In certain situations (such as ore jamming or mechanical compression), the cable and water pipe may become stuck during travel, resulting in excessive drag forces that can break the cable or pipe. In extreme cases, the shearer can even topple, posing a significant safety hazard and negatively impacting production. Existing shearer tow cables typically only feature physical protection, primarily shear pins. When the shear pins reach maximum shear force, they break along a weak surface, separating the cable, water pipe, and shearer body. This prevents the cables and pipes from breaking due to dragging and prevents the shearer from toppling.

[0004] In response to the above-mentioned problems during the operation of the coal mining machine, the inventors found that the existing coal mining machine towing cable device is unable to measure the tension exerted on the cables and water pipes in real time, and thus cannot provide early warning of possible jamming of the cables and water pipes, as well as more serious dragging and breakage. Once the physical protection measures take effect, the machine will inevitably have to be shut down for maintenance and replacement of parts, affecting production efficiency. Summary of the Invention

[0005] In order to provide real-time feedback on the tension on cables and water pipes, to provide timely warning of cable and water pipe jams, and to facilitate users to troubleshoot in a timely manner, the present application provides a new towing cable device that can measure real-time tension.

[0006] The present application provides a new type of towing cable device capable of measuring real-time tension, which adopts the following technical solution: a new type of towing cable device capable of measuring real-time tension, comprising: a base installed on a coal mining machine body, an upper cover being slidably connected to the top of the base, an installation cavity being formed between the base and the upper cover, a tension sensor being arranged in the installation cavity between the base and the upper cover, the tension sensor and the base being detachably connected to a fixing pin, the tension sensor and the upper cover being detachably connected to a shear pin, the upper cover being connected to a fixing seat for fixing cables and water pipes, a fixing cover being threadedly connected to the top of the fixing seat, the tension sensor being connected to two ear plates, and each ear plate being detachably connected to a towing chain.

[0007] By adopting the above technical solution, when using the system, the user secures the cable and water pipe between the fixing base and the fixing cover. The user then activates the traction device, driving the two traction chains to move at a constant speed, which in turn drives the tension sensor through the two lugs. The tension sensor then drives the base and upper cover to move accordingly via the fixing pin and shear pin. The shear pin's weak point is located between the tension sensor and the upper cover. The magnitude of the tension applied to the tension sensor at this time is the magnitude of the resistance encountered by the cable and water pipe during their movement and dragging. The dragging status of the cable and water pipe can be determined in real time based on the tension applied to the tension sensor. If the tension applied to the tension sensor suddenly increases, it may indicate a cable or water pipe jam, facilitating prompt inspection and repair. If the fault is not discovered and corrected, the increasing tension on the tension sensor will cause the shear pin to break along the weak point, separating the cable and water pipe from the shearer body, thus preventing further accidents such as cable and water pipe breakage and shearer tipping.

[0008] Optionally, the bottom of the upper cover is fixed with sliding rods at positions on both sides of its own installation cavity, and the base is provided with sliding grooves corresponding to each sliding rod position. The sliding rods are slidably connected to the sliding grooves of the base, and the sliding rods can slide along the length direction of the corresponding sliding grooves.

[0009] By adopting the above technical solution, when the user uses it, the sliding rod of the upper cover slides into the sliding groove of the base, thereby installing the upper cover on the top of the base, making it easy for the user to install and remove the upper cover.

[0010] Optionally, the base is provided with a wiring groove at the position of its own installation cavity, the wiring groove is connected to the installation cavity of the base, and the base is provided with a U-shaped wire clamp detachably connected to the wiring groove corresponding to its own. Both ends of the U-shaped wire clamp pass through the base, and both ends of the U-shaped wire clamp are threadedly connected with anti-loosening nuts, and the anti-loosening nuts can be set against the bottom of the base.

[0011] By adopting the above technical solution, when using the tension sensor, the user guides the circuit cables associated with the tension sensor through the wiring trough of the base and out of the mounting cavity of the base and upper cover. The tension sensor circuit cables are placed in the wiring trough of the base to protect them, preventing them from becoming tangled and damaging them during operation of the towing cable device. The user then uses a U-shaped wire clamp to press the tension sensor circuit cables into the wiring trough of the base and tightens the two locknuts until they contact the bottom of the base, thereby securing the circuit cables and further preventing them from becoming tangled and damaged during towing of the towing cable device.

[0012] Optionally, the tension sensor is detachably connected to two mounting half rings at the position corresponding to the shear pin. The mounting half rings are in the shape of a semicircular ring. The two mounting half rings are buckled together to form a ring shape, and the two mounting half rings clamp the shear pin together.

[0013] By adopting the above technical solution, when the shear pin breaks along its weak surface, the user can remove the two mounting half rings from the tension sensor, thereby facilitating the removal of the broken shear pin from the tension sensor and facilitating user use. The user can then insert a new shear pin between the two mounting half rings and then secure the two mounting half rings back in place. The two mounting half rings together clamp the shear pin, securing it in place.

[0014] Optionally, the base is installed with an industrial display, which is connected to the tension sensor and displays the pressure value of the tension sensor.

[0015] By adopting the above technical solution, when the user uses it, the tension sensor converts the magnitude of the tension it is subjected to into an electrical signal and transmits it to the industrial display through the circuit cable. The industrial display then displays the magnitude of the tension applied to the tension sensor in real time, allowing the user to intuitively see the magnitude of the tension applied to the tension sensor at this time, thereby facilitating the user's judgment on whether the tension will cause damage to the cables and water pipes.

[0016] Optionally, a switch slot is provided on the top of the base, and the switch slot of the base is communicated with its own mounting cavity. A travel switch is provided in the switch slot of the base, and the travel switch includes a contact rod, an emergency stop contact and a static contact piece. The contact rod is hinged in the switch slot of the base, and the static contact piece is fixed to the switch slot of the base near the position of the tension sensor. The emergency stop contact is fixed to the contact rod, and the emergency stop contact can contact the static contact piece. When the emergency stop contact contacts the static contact piece, the towing cable device stops supplying power. A step block is fixed to the bottom of the upper cover at the position corresponding to the contact rod. The step block can contact the contact rod, and the step block can push the contact rod to rotate toward the static contact piece.

[0017] By adopting the above technical solution, when the user uses it, when the shear pin between the upper cover and the tension sensor breaks along its own weak surface, the upper cover and the base move relative to each other. At this time, the step block of the upper cover pushes the resistance rod, causing the resistance rod to rotate in the switch of the base, thereby causing the resistance rod to drive the emergency stop contact to resist the static contact piece. When the emergency stop contact resists the static contact piece, the entire towing cable device immediately stops supplying power, causing the entire device to stop suddenly, avoiding causing more serious accidents.

[0018] Optionally, the fixing seat and the fixing cover are jointly provided with a cable hole and a water pipe hole, and the fixing seat and the fixing cover are fixedly connected with a connecting half-tube at the position of their own cable holes, and the connecting half-tube is semicircular, and the connecting half-tube of the fixing seat and the connecting half-tube of the fixing cover are buckled together to form a tube, and the inner circumferential wall of each connecting half-tube is jointly abutted with an elastic fastening rubber ring, the length of the fastening rubber ring is not less than the length of the connecting half-tube, the outer circumferential wall of the fastening rubber ring is circular tube-shaped, and the inner circumferential wall of the fastening rubber ring is conical tube-shaped, and the cross-sectional area of the inner circumferential wall of the fastening rubber ring away from the fixing seat position is larger than the cross-sectional area close to the fixing seat position, and the outer circumferential walls of the two connecting half-tubes are jointly threadedly connected with a sealing cover, which can abut against the fastening rubber ring.

[0019] By adopting the above technical solution, when the user uses it, the user inserts the cable into the cable hole between the fixing seat and the fixing cover, and makes the two connecting half-tubes fit together to form a circular tube shape, and then the user sets a fastening rubber ring between the two connecting half-tubes, and then the user passes the cable through the middle position of the fastening rubber ring, and then the user tightens the cover at the position of the two connecting half-tubes away from the fixing seat, and the cover pushes the fastening rubber ring toward the fixing seat, so that the fastening rubber ring is deformed inward along its inner circumferential wall, so that the fastening rubber ring is pressed against the surface of the cable, further playing the role of fixing the cable.

[0020] Optionally, a limiting slot is provided at the position of the upper cover corresponding to the fixed seat, and the length direction of the limiting slot is arranged along the length direction of the slide slot of the base. The fixed seat is slidably connected to the limiting slot of the upper cover, and the fixed seat can slide along the length direction of the limiting slot. An alarm contact is fixedly connected to the limiting slot of the upper cover, and an alarm contact is fixedly connected to the position of the fixed seat corresponding to the alarm contact. The alarm contact can abut against the alarm contact. A plurality of limiting springs are fixedly connected to the limiting slot of the upper cover, and the limiting springs can abut against the fixed seat. The limiting springs exert a force on the fixed seat to keep it away from the alarm contact. The upper cover is equipped with an alarm, and when the alarm contact abuts against the alarm contact, the alarm is turned on and starts to alarm.

[0021] By adopting the above technical solution, when the user is in use, when the cable and water pipe are stuck, the cable and water pipe pull the fixing seat to slide in the limit groove of the upper cover, causing the fixing seat to move and compress the limit spring. When the alarm contact of the fixing seat hits the alarm contact piece of the upper cover, the alarm starts to sound, reminding the user to check the fault in time to avoid accidents.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The design of the upper cover, base, sliding rod, sliding groove, shear pin, tension sensor, fixing seat, fixing cover, ear plate, traction chain, industrial display, ladder block, switch slot, contact rod, emergency stop contact, static contact piece, alarm contact, alarm contact piece, alarm, limit slot and limit spring can prevent the cable and water pipe from breaking during the towing process and causing the coal mining machine to fall in three levels during the operation of the towing device. The first level is the tension sensor and industrial display, which display the tension of the tension sensor in real time, so that the user can be warned of the stress state of the cable and water pipe in advance; the second level is the fixing seat sliding along the limit slot The displacement and compression limit spring make the alarm contact contact the alarm contact piece, so that the alarm is turned on and starts to alarm, reminding the user that the tension on the cable and water pipe has reached the critical value. The user should immediately check the position of the cable and water pipe and eliminate the fault in time. The third level is that the tension on the tension sensor is sufficient to make the shear pin break along its own weak surface. At this time, the upper cover and the base are relatively displaced, so that the traction chain is separated from the cable and water pipe to prevent the cable and water pipe from being dragged and broken. At the same time, the step block pushes the contact rod to make the emergency stop contact contact the static contact piece, causing the entire device to stop suddenly, avoiding more serious accidents and ensuring the safety of the entire coal mining machine.

[0024] 2. The design of installing half ring, shear pin and tension sensor can facilitate users to replace damaged shear pins and facilitate user use;

[0025] 3. The design of the sealing cover, connecting half-tube, fixing seat, fixing cover and fastening rubber ring can make the cable more tightly fixed between the fixing seat and the fixing cover, preventing the cable from falling off due to its own irregular shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 is a cross-sectional view of the overall structure of an embodiment of the present application;

[0028] Figure 3 This is a schematic diagram of the installation half-ring structure of an embodiment of the present application;

[0029] Figure 4 This is a schematic diagram of the fixing seat structure of an embodiment of the present application;

[0030] Figure 5 This is a cross-sectional view of the connecting half-pipe structure of an embodiment of the present application;

[0031] Figure 6 Schematic diagram of the interference rod structure of an embodiment of the present application.

[0032] Explanation of reference numerals: 1. Base; 11. Mounting cavity; 12. Slide; 13. Wire routing groove; 131. U-shaped wire clamp; 132. Loose nut; 14. Industrial display; 15. Switch slot; 2. Upper cover; 21. First mounting pin; 22. Slide rod; 23. Limiting groove; 24. Fixing seat; 241. Water pipe hole; 242. Cable hole; 25. Fixing cover; 251. Fastening bolt; 26. Limiting spring; 27. Alarm Alarm contact; 28. Alarm contact piece; 29. Alarm; 3. Tension sensor; 31. Fixing pin; 32. Second mounting pin; 321. Mounting slot; 322. Mounting half ring; 33. Shear pin; 34. Ear plate; 35. Drag chain; 4. Connecting half pipe; 41. Fastening rubber ring; 42. Sealing cover; 43. Through hole; 5. Travel switch; 51. Resistance rod; 52. Emergency stop contact; 53. Static contact piece; 54. Step block. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-6 This application is described in further detail.

[0034] The present application embodiment discloses a new type of tow cable device that can measure real-time tension. Figure 1-3 The device comprises a base 1, an upper cover 2, and a tension sensor 3. The upper cover 2 abuts against the top of the base 1. The abutting surfaces of the base 1 and the upper cover 2 define a mounting cavity 11. The mounting cavity 11 extends through the base 1 and the upper cover 2, and the tension sensor 3 abuts within the mounting cavity 11 formed by the base 1 and the upper cover 2. A fixing pin 31 is inserted into one end of the base 1 near the tension sensor 3. The fixing pin 31 extends through the base 1 and is inserted into the tension sensor 3, thereby connecting the tension sensor 3 and the base 1 together. A first mounting pin 21 is inserted into the upper cover 2 at a position away from the fixing pin 31. The first mounting pin 21 extends through the upper cover 2. A second mounting pin 32 is inserted into the base 1 at a position corresponding to the first mounting pin 21. The second mounting pin 32 extends through the base 1 and the tension sensor 3. A shear pin 33 is inserted between the first mounting pin 21 and the second mounting pin 32. The weak surface of the shear pin 33 is arranged along the contact surface between the bottom of the upper cover 2 and the tension sensor 3. The shear pin 33 connects the upper cover 2 and the tension sensor 3 together, thereby connecting the upper cover 2, the tension sensor 3, and the base 1. A mounting groove 321 is provided at the position corresponding to the shear pin 33 of the second mounting pin 32. The mounting groove 321 is a circular groove. Two mounting half rings 322 are bolted into the mounting groove 321 of the second mounting pin 32. The mounting half rings 322 are semicircular in shape and interlock with each other to form a ring shape. The two mounting half rings 322 can jointly clamp the shear pin 33.

[0035] Reference Figure 2 and Figure 4The tension sensor 3 has two lugs 34 fixedly connected to one end near the shear pin 33. Each lug 34 is bolted to a pull chain 35. Slide rods 22 are fixedly connected to the upper cover 2 at locations along its width corresponding to both sides of its mounting cavity 11. The length of the slide rods 22 runs along the length of the upper cover 2. A slide slot 12 is defined in the base 1 at a location corresponding to each slide rod 22. The length of the slide slot 12 runs along the length of the slide rod 22. The two slide rods 22 are slidably connected to the two slide slots 12 of the base 1, allowing the upper cover 2 to slide along the length of the slide slots 12. A wiring groove 13 is provided at the position corresponding to the mounting cavity 11 of the base 1. The wiring groove 13 is connected to the mounting cavity 11 of the base 1. A U-shaped wire clamp 131 is inserted into the wiring groove 13 of the base 1. The opening of the U-shaped wire clamp 131 is set vertically towards the base 1. Both ends of the U-shaped wire clamp 131 are threaded with a lock nut at each end, which can be set against the base 1. An industrial display screen 14 is fixedly connected to the outside of the base 1, and the industrial display screen 14 is connected to the tension sensor 3.

[0036] When the user is in use, the user drives the corresponding ear plate 34 to move through the towing chain 35, thereby driving the tension sensor 3 to move. The tension sensor 3 drives the upper cover 2 and the base 1 to move through the fixing pin 31 and the shear pin 33. The circuit cable of the tension sensor 3 extends into the wiring groove 13 of the base 1 through the installation cavity 11 between the base 1 and the upper cover 2. The wiring groove 13 plays a role in protecting the circuit cable of the tension sensor 3, and prevents the circuit cable of the tension sensor 3 from being entangled and dragged and damaged during the movement of the towing cable device. The user then passes the U-shaped wire clamp 131 through the base 1, pressing the U-shaped wire clamp 131 against the circuit cable of the tension sensor 3, thereby pressing the circuit cable of the tension sensor 3 into the wiring groove 13 of the base 1. The user then tightens the two locknuts on both ends of the U-shaped wire clamp 131, pressing the two locknuts against the bottom of the base 1. This allows the U-shaped wire clamp 131 to press the circuit cable of the tension sensor 3 into the wiring groove 13 of the base 1, preventing the circuit cable of the tension sensor 3 from falling out of the wiring groove 13 of the base 1. The tension sensor 3 is connected to the industrial display 14 via the circuit cable. The industrial display 14 displays the tension being applied to the tension sensor 3 at that moment. The real-time display allows the user to constantly observe the tension status and to provide early warning of cable and pipe jams if the tension suddenly increases. If the user fails to promptly detect the increase in tension on the tension sensor 3, when the tension on the tension sensor 3 reaches the limit value of the cable and water pipe, the shear pin 33 will break at the position corresponding to its own weak surface, thereby separating the upper cover 2 and the base 1, preventing the traction chain 35 from continuing to pull and causing the coal mining machine to fall. After the shear pin 33 breaks along its own weak surface, the user can remove the two mounting half rings 322 from the second mounting pin 32, thereby facilitating the removal of the broken shear pin 33. The user can then insert a new shear pin 33 between the two mounting half rings 322, and then fix the two mounting half rings 322 back in place, making it easier for the user to install and remove the shear pin 33. The two mounting half rings 322 jointly clamp the shear pin 33, playing the role of fixing the shear pin 33. The slide bar 22 and the slide groove 12 cooperate to facilitate the installation and removal of the upper cover 2.

[0037] Reference Figure 4 and Figure 5The top of the upper cover 2 has a limiting slot 23 along its length. A fixing seat 24 is slidably connected within the limiting slot 23 of the upper cover 2. The fixing seat 24 can slide along the length of the limiting slot 23. A fixing cover 25 is provided on the top of the fixing seat 24. Fastening bolts 251 are threadedly connected to the fixing cover 25 at each of its four corners. The fastening bolts 251 extend through the fixing cover 25 and pass through one end of the fixing cover 25 and are threadedly connected to the fixing seat 24. The fixing cover 25 and the fixing seat 24 are connected together by the fastening bolts 251. A water pipe hole 241 and a cable hole 242 are jointly defined between the fixing cover 25 and the fixing seat 24. The user places the water pipe in the water pipe hole 241 of the fixing seat 24 and the cable in the cable hole 242 of the base 1. The user tightens the four fastening bolts 251 so that the fixing cover 25 and the fixing seat 24 jointly clamp the cable and water pipe, thereby securing the cable and water pipe. Two limit springs 26 are fixedly attached to the limit slot 23 of the upper cover 2, away from the pull chain 35. The axial direction of the limit springs 26 runs along the length of the limit slot 23. Each limit spring 26 is capable of contacting the fixing base 24. The maximum elastic force of the limit springs 26 is less than the maximum shear force of the shear pin 33. An alarm contact 28 is fixedly attached to the position between the two limit springs 26 in the limit slot 23 of the upper cover 2. An alarm contact 27 is fixedly attached to the fixing base 24 at the position corresponding to the alarm contact 28. An alarm 29 is fixedly attached to the end of the upper cover 2 away from the pull chain 35. The alarm 29 and the alarm contact 28 are connected via a battery cell.

[0038] When the user is in use, the traction chain 35 drives the upper cover 2 and the base 1 to move. When the cable and the water pipe are stuck, in order to maintain the uniform movement of the cable and the water pipe, the tension on the tension sensor 3 increases. At the same time, the cable and the water pipe drive the fixing seat 24 to slide along the limit groove 23 of the upper cover 2, so that the fixing seat 24 compresses the two limit springs 26 along the limit groove 23 of the upper cover 2, until the alarm contact 27 connected to the fixing seat 24 hits the alarm contact 28 in the limit groove 23 of the upper cover 2, the alarm 29 is connected and an alarm is sounded to remind the user that the tension on the water pipe and the cable has increased to a critical value, and a fault is very likely to have occurred. The user is reminded to eliminate the fault as soon as possible, thereby preventing the water pipe and cable from being pulled and broken.

[0039] Reference Figure 4 and Figure 5, the fixing seat 24 and the fixing cover 25 are fixedly connected with a connecting half pipe 4 at the position corresponding to the cable hole 242 of themselves, and the connecting half pipe 4 is semi-circular. When the fixing cover 25 is connected to the top of the fixing seat 24 by the fastening bolt 251, the connecting half pipe 4 of the fixing seat 24 and the connecting half pipe 4 of the fixing cover 25 can be buckled with each other to form a circular tube. The connecting half pipe 4 of the fixing seat 24 and the connecting half pipe 4 of the fixing cover 25 are abutted against an elastic fastening rubber ring 41. The length of the fastening rubber ring 41 is greater than the length of the connecting half pipe 4. The fastening rubber ring 4 1 is in the shape of a circular tube, and the inner wall of the fastening rubber ring 41 is in the shape of a tapered tube. The cross-sectional area of the inner wall of the fastening rubber ring 41 at a position away from the fixing seat 24 is larger than the cross-sectional area at a position close to the fixing seat 24. The outer walls of the two connecting half-tubes 4 are commonly threadedly connected with a cover 42. The cover 42 is provided with a through hole 43 at a position corresponding to the inner wall of the connecting half-tube 4. The through hole 43 is connected to the cable hole 242 of the fixing seat 24 and the fixing cover 25 through the circular tube formed by buckling the two connecting half-tubes 4. The cover 42 can abut against the fastening rubber ring 41.

[0040] When the user is in use, the user passes the cable of the coal mining machine through the through hole 43 of the sealing cover 42 and extends it into the fastening rubber ring 41, and then extends the fastening rubber ring 41 into the circular tube formed by the two connecting half-tubes 4 of the fixing seat 24 and the fixing cover 25, so that the cable passes through the two connecting half-tubes 4 and extends into the cable hole 242 between the fixing seat 24 and the fixing cover 25. After that, the user tightens the sealing cover 42 on the outside of the two connecting half-tubes 4, so that the sealing cover 42 pushes the fastening rubber ring 41 toward the fixing seat 24, so that the fastening rubber ring 41 is deformed inward along its inner circumferential wall, so that the fastening rubber ring 41 is pressed against the surface of the cable, further playing the role of fixing the cable and preventing the cable from becoming scattered and falling off.

[0041] Reference Figure 2 and Figure 6 The top of the base 1 is provided with a switch slot 15, which is communicated with the mounting cavity 11 thereof. A travel switch 5 is provided in the switch slot 15 of the base 1. The travel switch 5 includes a contact rod 51, an emergency stop contact 52 and a static contact piece 53. The contact rod 51 is hinged in the switch slot 15 of the base 1. The static contact piece 53 is fixed to the position of the tension sensor 3 in the switch slot 15 of the base 1. The emergency stop contact 52 is fixed to the contact rod 51. The emergency stop contact 52 It can abut against the static contact piece 53. When the emergency stop contact 52 abuts against the static contact piece 53, the towing cable device stops supplying power. A step block 54 is fixedly connected to the position of the abutting rod 51 at the bottom of the upper cover 2. The step is almost inserted into the switch slot 15 of the base 1. The step block 54 is inclined on the side close to the abutting rod 51. The step block 54 can abut against the abutting rod 51. The step block 54 can push the abutting rod 51 to rotate toward the static contact piece 53, thereby causing the emergency stop contact to abut against the static contact piece 53.

[0042] The implementation principle of a new type of towing cable device that can measure real-time tension in an embodiment of the present application is as follows: the user places the cable and water pipe of the coal mining machine into the cable hole 242 and the water pipe hole 241 of the base 1 respectively to fix the cable and the water pipe, and passes the cable through the fastening rubber ring 41 and the sealing cover 42. Then the user sets the fixing cover 25 to the top of the fixing seat 24, aligns the four corners of the fixing cover 25 and the fixing seat 24, and buckles the two connecting half-tubes 4 into a circular tube shape. The user presses the fastening rubber ring 41 against the inner circumferential wall of the two connecting half-tubes 4. Then the user tightens the sealing cover 42 on the outside of the two connecting half-tubes 4. The sealing cover 42 pushes the fastening rubber ring 41 toward the fixing seat 24, so that the fastening rubber ring 41 presses against the fixing seat 24 and the fixing cover 25, and deforms inward, thereby clamping the cable to fix the cable. The user then pulls the traction chain 35 at a constant speed using the traction device, causing the traction chain 35 to drive the tension sensor 3, which in turn drives the base 1 and upper cover 2 via the fixing pin 31 and shear pin 33, respectively. The tension sensor 3 can now monitor the magnitude of the tension in real time. This real-time tension value is transmitted to the industrial display 14 via an electrical signal, allowing the user to monitor the tension in real time. If the water pipes or cables become stuck, the traction force will rapidly increase to maintain a constant pulling speed. The tension sensor 3 transmits this tension value to the industrial display 14 via an electrical signal, alerting the user to quickly resolve the problem. If the user fails to detect the change in the value on the industrial display 14, as the traction force increases, the fixing base 24, pulled by the water pipes and cables connected to it, slides along the limit slot 23 away from the traction chain 35, compressing the two limit springs 26 and causing the alarm contact 27 to contact the alarm contact 28, thereby activating the alarm 29. The alarm 29 then emits an alarm signal, alerting the user to resolve the problem promptly. If the fault is still not discovered and eliminated in time at this time, as the traction tension increases, the shear pin 33 between the tension sensor 3 and the upper cover 2 breaks along its own weak surface, thereby disconnecting the coal mining machine body from the water pipe and cable that are stuck, avoiding further tipping of the coal mining machine. At the same time, as the two slide bars 22 of the upper cover 2 are relatively displaced in the slide groove 12 of the base 1, the step block 54 at the bottom of the upper cover 2 pushes the resistance rod 51 along its own inclined surface, causing the resistance rod 51 to rotate, thereby driving the emergency stop electric contact to contact the static contact piece 53, causing the towing cable device to immediately lose power and stop suddenly, thereby avoiding the cable and water pipe being pulled and broken, and preventing the coal mining machine from continuing to tow and causing an accident. During the operation of the towing cable device, three levels are used to prevent the cable and water pipe from breaking during the towing process and causing the coal mining machine to tip over.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A new towline device capable of measuring real-time tension, comprising: The base (1) is installed on the body of the coal mining machine, and is characterized in that: the top of the base (1) is slidably connected to the upper cover (2), a mounting cavity (11) is formed between the base (1) and the upper cover (2), a tension sensor (3) is arranged in the mounting cavity (11) between the base (1) and the upper cover (2), the tension sensor (3) and the base (1) are detachably connected to a fixing pin (31), the tension sensor (3) and the upper cover (2) are detachably connected to a shear pin (33), the upper cover (2) is connected to a fixing seat (24) for fixing cables and water pipes, the top of the fixing seat (24) is threadedly connected to a fixing cover (25), and the tension sensor (3) is detachably connected to the upper cover (2). The sensor (3) is connected to two ear plates (34), and each ear plate (34) is detachably connected to a traction chain (35); the bottom of the upper cover (2) is fixed with slide bars (22) at positions on both sides of its own installation cavity (11); the base (1) is provided with a slide groove (12) at a position corresponding to each slide bar (22); the slide bar (22) is slidably connected to the slide groove (12) of the base (1), and the slide bar (22) can slide along the length direction of the corresponding slide groove (12); the base (1) is provided with a wiring groove (13) at a position corresponding to its own installation cavity (11), and the wiring groove (13) is connected to the installation cavity (11) of the base (1) The base (1) is detachably connected to a U-shaped wire hoop (131) in its own wiring groove (13), and both ends of the U-shaped wire hoop (131) are arranged through the base (1). Both ends of the U-shaped wire hoop (131) are threadedly connected to a locking nut, and the locking nut can be set against the bottom of the base (1); a switch groove (15) is opened on the top of the base (1), and the switch groove (15) of the base (1) is connected to the installation cavity (11) of the base (1). A travel switch (5) is arranged in the switch groove (15) of the base (1), and the travel switch (5) includes a contact rod (51), an emergency stop contact (52) and a static contact piece (53). The contact rod (5 1) is hinged in the switch slot (15) of the base (1), the static contact piece (53) is fixedly connected to the switch slot (15) of the base (1) near the position of the tension sensor (3), the emergency stop contact (52) is fixedly connected to the contact rod (51), the emergency stop contact (52) can contact the static contact piece (53), and when the emergency stop contact (52) contacts the static contact piece (53), the towing cable device stops supplying power, and a step block (54) is fixedly connected to the bottom of the upper cover (2) at a position corresponding to the contact rod (51), the step block (54) can contact the contact rod (51), and the step block (54) can push the contact rod (51) to rotate toward the static contact piece (53).

2. A new towline device capable of measuring real-time tension according to claim 1, characterized in that: The tension sensor (3) is detachably connected to two mounting half rings (322) at positions corresponding to the shear pin (33); the mounting half rings (322) are semicircular in shape; the two mounting half rings (322) are mutually buckled into a ring shape; and the two mounting half rings (322) jointly clamp the shear pin (33).

3. The novel tow cable device capable of measuring real-time tension according to claim 1, characterized in that: The base (1) is equipped with an industrial display screen (14), which is connected to the tension sensor (3). The industrial display screen (14) displays the pressure value of the tension sensor (3).

4. The novel tow cable device capable of measuring real-time tension according to claim 1, characterized in that: The fixing seat (24) and the fixing cover (25) are both provided with a cable hole (242) and a water pipe hole (241). The fixing seat (24) and the fixing cover (25) are both fixedly connected with a connecting half-tube (4) at the position corresponding to the cable hole (242). The connecting half-tube (4) is in the shape of a semicircular tube. The connecting half-tube (4) of the fixing seat (24) and the connecting half-tube (4) of the fixing cover (25) are buckled together to form a tube shape. The inner peripheral wall of each connecting half-tube (4) is in contact with an elastic fastening member. The length of the fastening rubber ring (41) is not less than the length of the connecting half pipe (4), the outer peripheral wall of the fastening rubber ring (41) is in the shape of a circular tube, the inner peripheral wall of the fastening rubber ring (41) is in the shape of a cone tube, the cross-sectional area of the inner peripheral wall of the fastening rubber ring (41) at a position away from the fixing seat (24) is larger than the cross-sectional area at a position close to the fixing seat (24), and the outer peripheral walls of the two connecting half pipes (4) are commonly threadedly connected to a sealing cover (42), and the sealing cover (42) can resist the fastening rubber ring (41).

5. The novel tow cable device capable of measuring real-time tension according to claim 1, characterized in that: The upper cover (2) is provided with a limiting groove (23) at a position corresponding to the fixing seat (24), and the length direction of the limiting groove (23) is arranged along the length direction of the slide groove (12) of the base (1). The fixing seat (24) is slidably connected to the limiting groove (23) of the upper cover (2), and the fixing seat (24) can slide along the length direction of the limiting groove (23). An alarm contact piece (28) is fixedly connected to the limiting groove (23) of the upper cover (2), and an alarm contact piece (28) is fixedly connected to the fixing seat (24) at a position corresponding to the alarm contact piece (28). An alarm contact (27) is provided. The alarm contact (27) can contact the alarm contact piece (28). A plurality of limit springs (26) are fixedly connected in the limit groove (23) of the upper cover (2). The limit springs (26) can contact the fixing seat (24). The limit springs (26) exert a force on the fixing seat (24) to keep the fixing seat away from the alarm contact piece (28). An alarm (29) is installed on the upper cover (2). When the alarm contact (27) contacts the alarm contact piece (28), the alarm (29) is turned on and starts to alarm.

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