Cable laying limiting device of mine underground electric loading and transporting machine and using method of cable laying limiting device

Abstract

The invention relates to the technical field of cable take-up and pay-off, in particular to a cable pay-off limiting device of a mine underground electric loader and a using method thereof.The cable pay-off limiting device comprises a base, a cable pay-off assembly, a limiting assembly and a power unit, the base is arranged on a tailstock of the electric loader, and the cable pay-off assembly comprises a cable pay-off wheel arranged on the base; a first rotating shaft and a second rotating shaft are inserted into the two ends of the cable laying wheel correspondingly, the limiting assembly comprises a limiting handle connected with the first rotating shaft and a limiting pedal controlling the first rotating shaft to rotate, the cable laying wheel is driven by the power unit to rotate for cable laying, and the first rotating shaft is limited through the limiting handle and the limiting pedal at the same time; and termination of the cable laying wheel is realized. When the cable laying wheel rotates, motor operation is cut off, a limiting handle is held, the first rotating shaft cannot rotate, meanwhile, a limiting pedal is treaded, a connecting plate conducts rotation limiting on the first rotating shaft at the same time, then rotation limiting of the cable laying wheel is achieved, the phenomenon that the cable laying wheel continues to rotate, and consequently a cable is broken is avoided, and safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cable retracting and releasing, and in particular to a cable releasing and limiting device for an underground electric loader in a mine and a use method thereof. Background Art

[0002] The underground electric loader is an electric device specially used for loading, transporting and unloading materials in mines. It is widely used in underground mining operations such as metal mines, non-metallic mines and coal mines. When the electric loader is working underground in the mine, the cable is released from the drum as needed to ensure that the equipment can continuously obtain power supply when moving.

[0003] The cable releasing limit device is an important safety device during the cable releasing process. It is used to prevent the cable from being broken due to the continued operation of the equipment after the cable is released. At that time, the existing cable releasing device only relied on hydraulic control or cable releasing compensation synchronizer and cable collecting synchronizer, which was completely dependent on the operation of the machine. When the machine failed, it was impossible to stop the cable releasing in time, causing danger. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a cable-releasing limit device for an electric loader in an underground mine and a method for using the same. When a fault occurs in the hydraulic control or the cable-releasing compensation synchronizer and the cable-retracting synchronizer, and the cable-releasing wheel cannot be released in time, the motor operation is cut off, the limit handle is held, so that the first rotating shaft cannot rotate, and the limit pedal is pressed at the same time, so that the connecting plate also limits the rotation of the first rotating shaft, thereby realizing the rotation limit of the cable-releasing wheel, avoiding the cable-releasing wheel from continuing to rotate and causing the cable to break, thereby improving safety.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a cable-releasing and limiting device for an electric loader in an underground mine, comprising a base, a cable-releasing assembly, a limiting assembly and a power unit, wherein the base is arranged on the tailstock of the electric loader, the cable-releasing assembly comprises a cable-releasing wheel arranged on the base, a first rotating shaft and a second rotating shaft are respectively plugged at both ends of the cable-releasing wheel, and the limiting assembly comprises a limiting handle connected to the first rotating shaft and a limiting foot pedal for controlling the rotation of the first rotating shaft; Among them, as the power unit drives the cable-releasing wheel to rotate to release the cable, the first rotating shaft is limited by the limiting handle and the limiting foot pedal at the same time, so that the cable-releasing wheel is stopped.

[0006] As a preferred technical solution of the present invention, the cable release assembly also includes a support frame arranged on the base, the cable release wheel is arranged in the support frame, the first rotating shaft and the second rotating shaft are respectively inserted into the support frame, and the limit handle is arranged on the outside of the support frame.

[0007] As a preferred technical solution of the present invention, the first rotating shaft is located in the supporting frame and has a recess extending outward at one end, a connecting plate is arranged in the recess, and the other end of the connecting plate is rotatably connected to the limit pedal.

[0008] As a preferred technical solution of the present invention, a rotating rod is further provided in the supporting frame, and the limit pedal is installed on the rotating rod.

[0009] As a preferred technical solution of the present invention, the power assembly includes a shell arranged on a base, a motor is arranged on the outside of the shell, the power output end of the motor extends into the shell and is connected to a third rotating shaft, a first gear is arranged on the third rotating shaft, a fourth rotating shaft is inserted into the shell, and a second gear meshing with the first gear is arranged on the fourth rotating shaft.

[0010] As a preferred technical solution of the present invention, a third gear is also provided on the fourth rotating shaft, a fifth rotating shaft is centrally inserted in the shell, a fourth gear meshing with the third gear is sleeved on the fifth rotating shaft, and the fifth rotating shaft extends outside the shell and is connected to the second rotating shaft.

[0011] As a preferred technical solution of the present invention, a ratchet is further provided on the side of the fourth rotating shaft facing the housing, a connecting rod is provided in the housing, a paddle is provided on the connecting rod, and the paddle is engaged with the ratchet.

[0012] As a preferred technical solution of the present invention, an adjustment component is also provided in the support frame, and the adjustment component includes a fifth gear provided on the second rotating shaft, a transmission belt is sleeved on the outer side of the fifth gear, and a sixth gear is meshed with the other end of the transmission belt. As a preferred technical solution of the present invention, a screw is inserted into the sixth gear, a movable seat is arranged on the screw, and the other end of the screw is connected to the inner wall of the support frame, an adjustment plate is arranged on the side of the movable seat facing the cable-releasing wheel, the adjustment plate is in contact with the cable on the surface of the cable-releasing wheel, a cross bar is arranged in the support frame, and the cross bar passes through the movable seat at the same time.

[0013] A method for using a cable-releasing limiter for an underground electric loader in a mine, the specific steps are as follows: S1. When the electric loader is operating in the mine, the motor is started, and the power output end of the motor drives the third rotating shaft to rotate, drives the first gear to rotate, and drives the fourth rotating shaft to rotate through the meshing of the first gear and the second gear, so that the third gear rotates, and drives the fifth rotating shaft to rotate through the meshing of the third gear and the fourth gear, and then drives the second rotating shaft to rotate; S2, the second rotating shaft rotates, driving the cable-releasing wheel to rotate, and the first rotating shaft rotates and follows the rotation, and under the connection of the connecting plate, drives the limit pedal to swing back and forth on the rotating rod, and the cable-releasing wheel releases the cable according to the distance the electric loader travels in the mine shaft; S3, during the cable release process, as the second rotating shaft drives the fifth gear to rotate, the transmission belt is driven to drive, so that the sixth gear rotates, and the screw rotates accordingly. As the movable seat moves along the length direction of the crossbar, the rotational motion is converted into linear motion, so that the movable seat moves accordingly, and the adjustment plate presses the cable in the direction of the cable release; S4. When emergency braking is performed, the motor operation is cut off, the limit handle is held to prevent the first rotating shaft from rotating, and the limit pedal is pressed at the same time, so that the connecting plate also limits the rotation of the first rotating shaft, thereby realizing the rotation limit of the cable release wheel.

[0014] Compared with the prior art, the beneficial effect that the present invention can achieve is: when the hydraulic control or the cable-releasing compensation synchronizer and the cable-retracting synchronizer fail and the cable-releasing wheel cannot be released in time, the motor operation is cut off, the limit handle is held, so that the first rotating shaft cannot rotate, and at the same time, the limit pedal is pressed so that the connecting plate also limits the rotation of the first rotating shaft, thereby realizing the rotation limit of the cable-releasing wheel, avoiding the cable-releasing wheel from continuing to rotate and causing the cable to break, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the position limiting pedal of the present invention; Figure 3 It is a structural schematic diagram of the limit handle of the present invention; Figure 4 It is a structural schematic diagram of the screw of the present invention; Figure 5 is a schematic structural diagram of the fourth gear of the present invention; Figure 6 is a schematic structural diagram of the second gear of the present invention; Figure 7 It is a schematic structural diagram of the ratchet of the present invention.

[0016] Among them: 1. base; 2. cable-releasing wheel; 3. first rotating axis; 4. second rotating axis; 5. limit handle; 6. limit pedal; 7. support frame; 8. connecting plate; 9. rotating rod; 10. shell; 11. motor; 12. third rotating axis; 13. first gear; 14. fourth rotating axis; 15. second gear; 16. third gear; 17. fifth rotating axis; 18. fourth gear; 19. ratchet; 20. connecting rod; 21. paddle; 22. fifth gear; 23. transmission belt; 24. sixth gear; 25. screw; 26. moving seat; 27. cross bar. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can be obtained from commercial channels. Example

[0018] like Figure 1 - Figure 7 As shown, this embodiment proposes a cable-releasing and limiting device for an underground electric loader in a mine, comprising a base 1, a cable-releasing assembly, a limiting assembly and a power unit, wherein the base 1 is arranged on the tailstock of the electric loader, the cable-releasing assembly comprises a cable-releasing wheel 2 arranged on the base 1, a first rotating shaft 3 and a second rotating shaft 4 are respectively plugged into two ends of the cable-releasing wheel 2, the limiting assembly comprises a limiting handle 5 connected to the first rotating shaft 3 and a limiting pedal 6 for controlling the rotation of the first rotating shaft 3, wherein as the power unit drives the cable-releasing wheel 2 to rotate to release the cable, the first rotating shaft 3 is limited simultaneously by the limiting handle 5 and the limiting pedal 6, thereby realizing the termination of the cable-releasing wheel 2.

[0019] When the hydraulic control or the cable-releasing compensation synchronizer and the cable-retracting synchronizer fail and the cable-releasing wheel 2 cannot be released in time, the operation of the motor 11 is cut off, the limit handle 5 is held, so that the first rotating shaft 3 cannot rotate, and the limit pedal 6 is stepped on at the same time, so that the connecting plate 8 also limits the rotation of the first rotating shaft 3, thereby realizing the rotation limit of the cable-releasing wheel 2, avoiding the cable-releasing wheel 2 from continuing to rotate and causing the cable to break.

[0020] The cable-releasing assembly further comprises a support frame 7 arranged on the base 1, the cable-releasing wheel 2 is arranged in the support frame 7, the first rotating shaft 3 and the second rotating shaft 4 are respectively plugged into the support frame 7, and the limit handle 5 is arranged outside the support frame 7. The cable-releasing wheel 2 is supported by the support frame 7 to improve the stability of the cable-releasing wheel 2 during the cable-releasing process. The first rotating shaft 3 is located in the support frame 7, and one end thereof extends outwardly with a recess, and a connecting plate 8 is arranged in the recess, and the other end of the connecting plate 8 is rotatably connected to the limit pedal. The connection between the first rotating shaft 3 and the connecting plate 8 and the connection between the connecting plate 8 and the limit pedal 6 are both rotatably arranged, so that when the first rotating shaft 3 rotates, due to the arrangement of the recess, the connecting plate 8 can swing up and down with a certain amplitude, and then drive the limit pedal 6 to swing forward and backward with a certain amplitude. A rotating rod 9 is also arranged in the support frame 7, and the limit pedal is installed on the rotating rod 9. Through the rotating rod 9, the limit pedal 6 can swing under the push of the connecting plate 8.

[0021] Furthermore, the power component includes a shell 10 arranged on the base 1, and a motor 11 is arranged on the outside of the shell 10. The power output end of the motor 11 extends into the shell 10 and is connected to a third rotating shaft 12. A first gear 13 is arranged on the third rotating shaft 12. A fourth rotating shaft 14 is inserted into the shell 10, and a second gear 15 meshing with the first gear 13 is arranged on the fourth rotating shaft 14. As the motor 11 drives the third rotating shaft 12 to rotate, the first gear 13 is driven to rotate, and the first gear 13 is meshed with the second gear 15, and then the fourth rotating shaft 14 is driven to rotate, so that the third gear 16 rotates. There is a gap between the second gear 15 and the third gear 16, and they do not affect each other. A third gear 16 is also provided on the fourth rotating shaft 14, a fifth rotating shaft 17 is centrally inserted in the housing 10, a fourth gear 18 meshing with the third gear 16 is sleeved on the fifth rotating shaft 17, and the fifth rotating shaft 17 extends outside the housing 10 and is connected to the second rotating shaft 4. As the third gear 16 rotates, the third gear 16 meshes with the fourth gear 18, driving the fourth gear 18 to rotate, allowing the fifth rotating shaft 17 to rotate, and the fifth rotating shaft 17 is connected to the second rotating shaft 4 through the fifth rotating shaft 17, thereby driving the second rotating shaft 4 to rotate, allowing the cable-releasing wheel 2 to release the cable. A ratchet 19 is also provided on the side of the fourth rotating shaft 14 facing the shell 10, and a connecting rod 20 is provided in the shell 10. A paddle 21 is provided on the connecting rod 20, and the paddle 21 is engaged with the ratchet 19. When the second rotating shaft 4 is limited by the limiting handle 5 and the limiting pedal 6, the cable-releasing wheel 2 is driven to be limited. However, turning the limiting handle 5 and stepping on the limiting pedal 6 will cause the cable-releasing wheel 2 to rotate in the reverse direction, thereby driving the second rotating shaft 4 to rotate in the reverse direction. Under the cooperation of the fourth gear 18 and the third gear 16, the ratchet 19 will be driven to rotate in the reverse direction. At this time, the paddle 21 will be engaged in the gap of the ratchet 19, limiting the ratchet 19, so that the ratchet 19 cannot rotate in the reverse direction, and then the fourth rotating shaft 14 and the third rotating shaft 12 cannot rotate in the reverse direction, thereby avoiding the torque damage to the motor 11 caused by the reverse rotation, and extending the service life of the motor 11.An adjustment component is also provided in the support frame 7, and the adjustment component includes a fifth gear 22 provided on the second rotating shaft 4, a transmission belt 23 is sleeved on the outer side of the fifth gear 22, a sixth gear 24 is meshed with the other end of the transmission belt 23, a screw 25 is inserted in the sixth gear 24, a moving seat 26 is provided on the screw 25, and the other end of the screw 25 is connected to the inner wall of the support frame 7, and an adjustment plate (not shown in the figure) is provided on the side of the moving seat 26 facing the cable wheel 2, and the adjustment plate is in contact with the cable on the surface of the cable wheel 2. There is a cross bar 27, which also passes through the moving seat 26. When the fifth gear 22 rotates, the transmission belt 23 meshes with the fifth gear 22 and the sixth gear 24 at the same time, driving the sixth gear 24 to rotate, so that the screw 25 rotates, and the moving seat 26 can slide along the length direction of the cross bar 27, converting the rotational motion into linear motion, so that the moving seat 26 can move along the cable release track direction of the cable release wheel 2, allowing the adjustment plate to press the cable, avoiding confusion due to excessive cable release speed, and improving the stability of cable release.

[0022] A method for using a cable-releasing limiter for an underground electric loader in a mine, the specific steps are as follows: S1, when the electric loader is operating in the mine, the motor 11 is started, and the power output end of the motor 11 drives the third rotating shaft 12 to rotate, driving the first gear 13 to rotate, and the first gear 13 is meshed with the second gear 15, driving the fourth rotating shaft 14 to rotate, so that the third gear 16 rotates, and the third gear 16 is meshed with the fourth gear 18, driving the fifth rotating shaft 17 to rotate, and then driving the second rotating shaft 4 to rotate; S2, the second rotating shaft 4 rotates, driving the cable-releasing wheel 2 to rotate, and the first rotating shaft 3 rotates and follows the rotation, and under the connection of the connecting plate 8, the limit pedal 6 is driven to swing back and forth on the rotating rod 9, and the cable-releasing wheel 2 releases the cable according to the distance the electric loader travels in the mine shaft; S3, during the cable release process, as the second rotating shaft drives the fifth gear 22 to rotate, the driving belt 23 is driven to transmit, so that the sixth gear 24 rotates, and the screw 25 rotates accordingly, and as the movable seat 26 moves along the length direction of the cross bar 27, the rotary motion is converted into a linear motion, so that the movable seat 26 moves accordingly, and the adjusting plate presses the cable in the direction of the cable release; S4. When emergency braking is performed, the motor 11 is cut off, the limit handle 5 is held to prevent the first rotating shaft 3 from rotating, and the limit pedal 6 is stepped on at the same time, so that the connecting plate 8 also limits the rotation of the first rotating shaft 3, thereby realizing the rotation limit of the cable release wheel 2.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above implementation regulations. The above implementation regulations and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cable-releasing limiting device for an underground electric loader in a mine, characterized in that: It includes a base, a cable-releasing assembly, a limiting assembly and a power unit. The base is arranged on the tailstock of the electric loader. The cable-releasing assembly includes a cable-releasing wheel arranged on the base. The two ends of the cable-releasing wheel are respectively plugged with a first rotating shaft and a second rotating shaft. The limiting assembly includes a limiting handle connected to the first rotating shaft and a limiting pedal for controlling the rotation of the first rotating shaft. Among them, as the power unit drives the cable-releasing wheel to rotate to release the cable, the first rotating shaft is limited by the limiting handle and the limiting foot pedal at the same time, so that the cable-releasing wheel is stopped.

2. The cable-releasing limiting device for an underground electric loader in a mine according to claim 1 is characterized in that: The cable-releasing assembly also includes a supporting frame arranged on the base, the cable-releasing wheel is arranged in the supporting frame, the first rotating shaft and the second rotating shaft are respectively plugged into the supporting frame, and the limiting handle is arranged on the outside of the supporting frame.

3. The cable-releasing limiting device for an underground electric loader in a mine according to claim 2 is characterized in that: The first rotating shaft is located in the supporting frame, and one end thereof extends outwardly to form a recess, a connecting plate is arranged in the recess, and the other end of the connecting plate is rotatably connected to the limit pedal.

4. The cable-releasing and limiting device for an underground electric loader in a mine according to claim 3 is characterized in that: A rotating rod is also arranged in the supporting frame, and a limit pedal is installed on the rotating rod.

5. The cable-releasing and limiting device for an underground electric loader in a mine according to claim 4 is characterized in that: The power assembly includes a shell arranged on a base, a motor is arranged on the outside of the shell, a power output end of the motor extends into the shell and is connected to a third rotating shaft, a first gear is arranged on the third rotating shaft, a fourth rotating shaft is inserted into the shell, and a second gear meshing with the first gear is arranged on the fourth rotating shaft.

6. The cable-releasing limiting device for an underground electric loader in a mine according to claim 5, characterized in that: A third gear is also arranged on the fourth rotating shaft, a fifth rotating shaft is centrally inserted in the shell, a fourth gear meshing with the third gear is sleeved on the fifth rotating shaft, and the fifth rotating shaft extends outside the shell and is connected with the second rotating shaft.

7. The cable-releasing and limiting device for an underground electric loader in a mine according to claim 6, characterized in that: A ratchet is also arranged on the side of the fourth rotating shaft facing the shell, a connecting rod is arranged in the shell, a paddle is arranged on the connecting rod, and the paddle is engaged with the ratchet.

8. The cable-releasing and limiting device for an underground electric loader in a mine according to claim 7, characterized in that: An adjusting component is also arranged in the supporting frame, and the adjusting component comprises a fifth gear arranged on the second rotating shaft, a transmission belt is sleeved on the outer side of the fifth gear, and a sixth gear is meshed with the other end of the transmission belt.

9. The cable-releasing limiting device for an underground electric loader in a mine according to claim 8, characterized in that: A screw is inserted in the sixth gear, a moving seat is arranged on the screw, and the other end of the screw is connected to the inner wall of the support frame, an adjustment plate is arranged on the side of the moving seat facing the cable-releasing wheel, the adjustment plate is in contact with the cable on the surface of the cable-releasing wheel, a cross bar is arranged in the support frame, and the cross bar also passes through the moving seat.

10. A method for using a cable-releasing limiter for an underground electric loader in a mine, characterized in that: The cable-releasing limiting device for an underground electric loader in a mine as claimed in claim 9, S1. When the electric loader is operating in the mine, the motor is started, and the power output end of the motor drives the third rotating shaft to rotate, drives the first gear to rotate, and drives the fourth rotating shaft to rotate through the meshing of the first gear and the second gear, so that the third gear rotates, and drives the fifth rotating shaft to rotate through the meshing of the third gear and the fourth gear, and then drives the second rotating shaft to rotate; S2, the second rotating shaft rotates, driving the cable-releasing wheel to rotate, and the first rotating shaft rotates and follows the rotation, and under the connection of the connecting plate, drives the limit pedal to swing back and forth on the rotating rod, and the cable-releasing wheel releases the cable according to the distance the electric loader travels in the mine shaft; S3, during the cable release process, as the second rotating shaft drives the fifth gear to rotate, the transmission belt is driven to drive, so that the sixth gear rotates, and the screw rotates accordingly. As the movable seat moves along the length direction of the crossbar, the rotational motion is converted into linear motion, so that the movable seat moves accordingly, and the adjustment plate presses the cable in the direction of the cable release; S4. When emergency braking is performed, the motor operation is cut off, the limit handle is held to prevent the first rotating shaft from rotating, and the limit pedal is pressed at the same time, so that the connecting plate also limits the rotation of the first rotating shaft, thereby realizing the rotation limit of the cable release wheel.

Images