Automatic tail cable winding and unwinding device

Abstract

The invention discloses an automatic tail cable winding and unwinding device which comprises a platform, a winding mechanism and a pressing mechanism, a walking mechanism is arranged at the bottom of the platform and used for driving the platform to move, the winding mechanism comprises a cable drum and a compensation drum, the cable drum is located at the first end of the platform in the advancing direction, and the compensation drum is located at the second end of the platform in the advancing direction. The compensation winding drum is located at the second end of the platform in the advancing direction, the motor is in transmission connection with the side face of the cable winding drum through the speed reducer to drive the cable winding drum to rotate, and the torque motor is in transmission connection with the side face of the compensation winding drum through the speed reducer to drive the compensation winding drum to rotate. The supporting piece is perpendicular to the platform, the pressing roller is located on the pressing support and connected with the pressing support in a pivoted mode, and the pressing support is rotatably connected with the supporting piece so as to be attached to the cable drum. The automatic tail cable winding and unwinding device provided by the invention has the advantages of high winding efficiency and automatic winding.

Description

Technical Field

[0001] The invention relates to the technical field of cable wiring equipment, and in particular to an automatic retracting and releasing device for a tail cable. Background Art

[0002] The tail cable is the one that moves most frequently. It is usually coiled on a sled, and the shovel tows the sled. The sled is a steel frame structure composed of several beams. Its moving principle is the same as that of a sled. It takes two people to coil the cable into an 8-shaped shape, which has a low degree of automation, takes a long time, and is inefficient. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides an automatic retractable device for a tail cable, which has the advantages of high retracting efficiency and automatic retracting.

[0004] According to the automatic tail line cable retracting and releasing device of the embodiment of the present invention, the automatic tail line cable retracting and releasing device includes a platform, a winding mechanism and a clamping mechanism, a walking mechanism is arranged at the bottom of the platform, the walking mechanism is used to drive the platform to move, the winding mechanism includes a cable reel and a compensation reel, the cable reel is located at a first end of the platform in the travel direction, the compensation reel is located at a second end of the platform in the travel direction, the motor is connected to the side surface of the cable reel through a reducer to drive the cable reel to rotate, the torque motor is connected to the side surface of the compensation reel through a reducer to drive the compensation reel to rotate, the clamping mechanism includes a clamping roller, a clamping bracket and a support member, the support member is perpendicular to the platform, the clamping roller is located on the clamping bracket and is pivotally connected to the clamping roller, and the clamping bracket is rotatably connected to the support member to maintain contact with the cable reel.

[0005] The automatic retractable tail cable device according to the embodiment of the present invention has the advantages of high retracting efficiency and automatic retracting. The present application has the following advantages: The present application avoids direct contact between a person or an electric shovel and a live cable, eliminates cable dragging and reduces cable loss. Automatic retracting and arrangement of cables can be achieved.

[0006] In some embodiments, the automatic tail cable retracting and releasing device also includes a wire arranging mechanism, which includes a wire arranging motor, a screw column and a wire arranging device. The wire arranging motor drives the screw through a reducer to drive the wire arranging device to move along the screw. Both ends of the screw are pivotally connected to the columns respectively. The column is connected to the platform and is located next to the cable reel.

[0007] In some embodiments, the cable arranging mechanism further includes a limit sensor, and the limit sensor is located on the column to detect the position of the cable arranging device.

[0008] In some embodiments, a high-voltage collector ring and a connector coupler are disposed inside the cable reel, and a waterproof mechanism is disposed at the cable access port of the cable reel to protect the cable.

[0009] In some embodiments, a distance sensor is disposed on the cable reel to monitor the number of cable turns on the cable reel.

[0010] In some embodiments, the automatic tail cable retraction and release device also includes a cable guiding mechanism, which includes a cable guide roller bracket and a swivel cable support arm. The cable guide roller bracket is connected to the cable reel via a swivel cable support arm, and a plurality of guide rollers are pivotally connected to the cable guide roller bracket.

[0011] In some embodiments, the walking mechanism includes a frame, a walking motor, a driving wheel, a supporting roller and a track chain. The frame is connected to the platform, the driving wheel is located at one end of the frame, the walking motor drives the driving wheel to rotate through a reducer, and the track chain surrounds the driving wheel and the supporting roller.

[0012] In some embodiments, the walking mechanism further includes a track tensioning structure, which includes a tensioning cylinder and a guide wheel, and the tensioning cylinder pushes the guide wheel to move relative to the platform to change the tightness of the track chain.

[0013] In some embodiments, a machine room is set up on the platform, and the machine room includes a high-voltage room, a low-voltage room and a brake resistor room. The high-voltage room is equipped with a transformer and a high-voltage switch cabinet, the low-voltage room is equipped with a PLC controller, a frequency converter low-voltage switch and a relay, and the brake resistor and a cooling fan are arranged in the brake resistor room.

[0014] In some embodiments, fences and ladders are provided at the edge of the platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 1 is a schematic diagram of the structure of an automatic retractable device for a tail cable according to an embodiment of the present invention.

[0016] Figure 2 1 is a schematic structural diagram of a clamping mechanism of an automatic tail cable retracting and releasing device according to an embodiment of the present invention.

[0017] Figure 3 Schematic diagram of the internal structure of the cable reel of the automatic tail cable retracting and releasing device according to an embodiment of the present invention.

[0018] Figure 41 is a schematic structural diagram of a cable arrangement mechanism of an automatic tail cable retracting and releasing device according to an embodiment of the present invention.

[0019] Figure 5 1 is a schematic top view of an automatic tail cable retracting and releasing device according to an embodiment of the present invention.

[0020] Figure numerals: 1. cable reel; 11. high-voltage collector ring; 12. connector coupler; 2. compensation reel; 3. cable arrangement mechanism; 31. lead screw; 32. column; 4. clamping mechanism; 41. clamping roller; 42. clamping bracket; 43. support; 5. machine room; 6. platform; 7. frame; 8. cable guide roller bracket; 9. swivel cable support arm. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0022] According to the automatic retracting and releasing device of the tail line cable according to the embodiment of the present invention, the automatic retracting and releasing device of the tail line cable includes a platform 6, a winding mechanism and a clamping mechanism 4, a walking mechanism is arranged at the bottom of the platform 6, the walking mechanism is used to drive the platform 6 to move, the winding mechanism includes a cable reel 1 and a compensation reel 2, the cable reel 1 is located at the first end of the platform 6 in the traveling direction, the compensation reel 2 is located at the second end of the platform 6 in the traveling direction, the motor is connected to the side of the cable reel 1 through a reducer to drive the cable reel 1 to rotate, the torque motor is connected to the side of the compensation reel 2 through a reducer to drive the compensation reel 2 to rotate, the clamping mechanism 4 includes a clamping roller 41, a clamping bracket 42 and a support 43, the support 43 is perpendicular to the platform 6, the clamping roller 41 is located on the clamping bracket 42 and is pivotally connected to the clamping roller 41, the clamping bracket 42 is rotatably connected to the support 43 to maintain contact with the cable reel 1. The winding mechanism is used to complete the synchronous operation of cable retraction and release, the platform 6 plays a bearing role, and the traveling mechanism is used to drive the equipment to move synchronously with the electric shovel. The clamping mechanism 4 is used to ensure that the cable is tightly wound on the drum. The motor of the cable drum 1 adopts a variable frequency motor to achieve rotation speed adjustment to better adapt to the walking speed to complete the smooth winding and release of the cable. The platform 6 is connected to the traveling mechanism through a connector, and the platform 6 has a main beam and a connecting beam. The cable on the compensation drum 2 is used to connect to the electric shovel, and can accommodate rubber-sheathed cables with a diameter of 57~60_mm and a length of ≥100m. The cable on the cable drum 1 is used to connect to the power supply.

[0023] During the working process, the cable on the compensation drum 2 and the connection part of the electric shovel are kept in a suspended and taut state. When the electric shovel moves forward, the tension on the cable is greater than the blocking torque of the compensation drum 2, and the compensation drum 2 releases the cable;

[0024] When the electric shovel truck moves backward, the force on the cable is less than the stopping torque of the compensation drum 2, and the compensation drum 2 retracts the cable.

[0025] The automatic retracting and releasing device for the tail cable according to the embodiment of the present invention has the advantages of high retracting efficiency and automatic retracting.

[0026] In some embodiments, the automatic tail cable retracting and releasing device also includes a wire arranging mechanism 3, which includes a wire arranging motor, a lead screw 31, a column 32 and a wire arranging device. The wire arranging motor drives the lead screw 31 through a reducer to drive the wire arranging device to move along the lead screw 31. The two ends of the lead screw 31 are respectively pivotally connected to the column 32. The column 32 is connected to the platform 6 and is located next to the cable reel 1.

[0027] Specifically, the cable arrangement mechanism 3 can be adjusted according to the cable diameters of different specifications. Two columns 32 are arranged at the ends of the platform 6. The two ends of the lead screw 31 are connected to the columns 32. The cable arrangement motor is connected to the lead screw 31 to drive the lead screw 31 to rotate. The cable arranger is arranged on the lead screw 31 and is threadedly connected to the lead screw 31. As the lead screw 31 rotates, the cable arranger moves relative to the platform 6 on the lead screw 31 to arrange the cable. It can be understood that a guide bar is also provided on the column 32 to guide the movement of the cable arranger. The cable arranger moves at a uniform speed at a speed of one wire diameter when the cable drum 1 rotates one circle, ensuring that the cable reel is neatly placed. The cable arrangement speed can be changed according to different cable diameters on the touch screen setting in the low-voltage control room.

[0028] In some embodiments, the cable arranging mechanism 3 further includes a limit sensor, and the limit sensor is located on the column 32 to detect the position of the cable arranging device.

[0029] Specifically, limit sensors are installed on the two side columns 32. When the limit sensor detects that the cable traverser is approaching, the signal is transmitted to the PLC controller. The PLC controller instructs the cable traverser motor to reverse to achieve reciprocating motion. When the cable traverser stops at any position, the PLC controller can automatically memorize the direction of travel and ensure the correct direction of movement when it is started again.

[0030] In some embodiments, a high-voltage collector ring 11 and a connector coupler 12 are disposed inside the cable reel 1 , and a waterproof mechanism is disposed at the cable access port of the cable reel 1 to protect the cable.

[0031] Specifically, the high-voltage collector ring 11 and the connector coupler 12 are arranged inside the cable reel 1 to facilitate the replacement of cables. The outer surface of the reel can reel in 300 meters of mining cable with an outer diameter of 60 mm. A manhole can be set at one end of the reel for maintenance personnel to enter and exit. The manhole is provided with a sealed and waterproof manhole cover. The high-voltage collector ring 11 is used to maintain a reliable electrical connection with the cable during the rotation of the cable reel 1, ensuring that the current can be continuously transmitted without interruption, allowing the cable to rotate freely on the reel, reducing the wear that may be caused by direct contact between the cable and the reel, and extending the service life of the cable; the connector coupler 12 is used to connect the end of the cable to ensure a reliable connection between the cable and the equipment or other cable segments. The connector coupler 12 can protect the connection point of the cable to avoid corrosion or damage caused by external factors such as humidity, dust, etc. The connector coupler 12 is easy to connect and disconnect quickly, which improves work efficiency and convenience.

[0032] In some embodiments, a distance sensor is disposed on the cable reel 1 to monitor the number of cable turns on the cable reel 1 .

[0033] Specifically, a distance sensor is provided on the cable reel 1 to monitor the number of turns of the cable. The distance sensor may be a photoelectric distance sensor or an ultrasonic distance sensor, etc. The distance sensor can monitor the remaining length of the cable in real time to prevent the cable from falling off due to less than 5 turns of the cable.

[0034] In some embodiments, the automatic tail cable retraction and release device also includes a cable guiding mechanism, which includes a cable guide roller bracket 8 and a swivel cable support arm. The cable guide roller bracket 8 is connected to the cable reel 1 through a swivel cable support arm, and a plurality of guide rollers are pivotally connected to the cable guide roller bracket 8.

[0035] Specifically, one end of the swivel cable support arm is connected to the platform 6, and the other end of the swivel cable support arm is connected to the cable guide roller bracket 8, which fixes the cable between the drum and the electric shovel. The cable is fixed for 30 to 70 meters, which is convenient for the automatic retracting and releasing device of the tail line cable to move independently over long distances. Multiple guide rollers on the cable guide roller bracket 8 are spliced ​​to form a wire hole for the cable to enter and exit, and there can be four guide rollers.

[0036] In some embodiments, the walking mechanism includes a frame 7, a walking motor, a driving wheel, a supporting roller and a track chain. The frame 7 is connected to the platform 6, the driving wheel is located at one end of the frame 7, the walking motor drives the driving wheel to rotate through a reducer, and the track chain surrounds the driving wheel and the supporting roller.

[0037] Specifically, the travel mechanism drives the driving wheel to rotate through the reducer, and the driving wheel drives the crawler chain to move. The travel motor can adopt a variable frequency motor, and the motor can be provided with a heater to remove moisture in the motor. The frame 7 is welded and two travel motors are arranged at one end of the frame 7.

[0038] In some embodiments, the walking mechanism further includes a track tensioning structure, which includes a tensioning cylinder and a guide wheel. The tensioning cylinder pushes the guide wheel to move relative to the platform 6 to change the tightness of the track chain.

[0039] Specifically, the track tensioning structure includes a tensioning cylinder and a guide wheel, which are used to adjust the tension of the track chain. The oil filling of the tensioning cylinder is operated on the outside of the track. The track tensioning structure ensures that the track is always in the best working condition, improving the stability and durability of the walking mechanism. The track shoe width is 500mm, and the track grounding length is greater than 4 meters.

[0040] In some embodiments, a machine room 5 is set on the platform 6, and the machine room 5 includes a high-voltage room, a low-voltage room and a brake resistor room. The high-voltage room is arranged with a transformer and a high-voltage switch cabinet, the low-voltage room is arranged with a PLC controller, a frequency converter low-voltage switch and a relay, and the brake resistor and a cooling fan are arranged in the brake resistor room.

[0041] Specifically, a transformer and two high-voltage switch cabinets are installed in the high-voltage room, and a low-voltage power supply cabinet and a low-voltage control cabinet are installed in the low-voltage room. The low-voltage power supply cabinet is equipped with a power conversion gate, two travel inverters and two drum inverters; the low-voltage control cabinet is equipped with a PLC controller, a liquid crystal touch screen, a low-voltage switch, a relay, a servo controller and a remote control receiver. Air conditioning is also arranged in the machine room 5 to ensure the ambient temperature in the machine room 5, and insulation panels are installed on the inner walls and ceilings of the low-voltage room.

[0042] In some embodiments, fences and ladders are provided at the edge of the platform 6 .

[0043] Specifically, fences and ladders are set at the edge of the platform 6 to ensure the safety of the operators. The ladders are located on both sides of the platform 6 to separate the fences. The ladders are convenient for people to get on and off the platform 6. The fences are used to protect people, provide a safe working environment, and prevent operators from accidentally falling, which meets industrial safety standards.

[0044] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. An automatic retractable device for a tail cable, characterized in that: include: A platform, wherein a walking mechanism is arranged at the bottom of the platform, and the walking mechanism is used to drive the platform to move; A wire winding mechanism, the wire winding mechanism comprising a cable drum and a compensation drum, the cable drum being located at a first end of the platform in the direction of travel, the compensation drum being located at a second end of the platform in the direction of travel, the motor being connected to a side surface of the cable drum via a reducer to drive the cable drum to rotate, and the torque motor being connected to a side surface of the compensation drum via a reducer to drive the compensation drum to rotate; The clamping mechanism comprises a clamping roller, a clamping bracket and a support member, wherein the support member is perpendicular to the platform, the clamping roller is located on the clamping bracket and is pivotally connected to the clamping roller, and the clamping bracket is rotatably connected to the support member to maintain contact with the cable reel.

2. The automatic retractable device for the tail cable according to claim 1, characterized in that: It also includes a wire arrangement mechanism, which includes a wire arrangement motor, a lead screw, a column and a wire arrangement device. The wire arrangement motor drives the lead screw through a reducer to drive the wire arrangement device to move along the lead screw. Both ends of the lead screw are pivotally connected to the columns respectively. The column is connected to the platform and is located next to the cable reel.

3. The automatic retractable device for the tail cable according to claim 2, characterized in that: The cable arranging mechanism further comprises a limit sensor, and the limit sensor is located on the column and is used to detect the position of the cable arranging device.

4. The automatic retractable device for the tail cable according to claim 1, characterized in that: A high-voltage collector ring and a joint coupler are arranged inside the cable reel, and a waterproof mechanism is arranged at the cable access port of the cable reel to protect the cable.

5. The automatic retractable device for the tail cable according to claim 1, characterized in that: A distance sensor is arranged on the cable drum to monitor the number of cable turns on the cable drum.

6. The automatic retractable device for the tail cable according to claim 1, characterized in that: It also includes a cable guiding mechanism, which includes a cable guiding roller bracket and a swivel cable support arm. The cable guiding roller bracket is connected to the cable drum through the swivel cable support arm, and a plurality of guiding rollers are pivotally connected to the cable guiding roller bracket.

7. The automatic retractable device for the tail cable according to claim 1, characterized in that: The traveling mechanism comprises a frame, a traveling motor, a driving wheel, a supporting roller and a track chain. The frame is connected to the platform. The driving wheel is located at one end of the frame. The traveling motor drives the driving wheel to rotate through a reducer. The track chain surrounds the driving wheel and the supporting roller.

8. The automatic retractable device for the tail cable according to claim 7, characterized in that: The walking mechanism also includes a track tensioning structure, which includes a tensioning cylinder and a guide wheel. The tensioning cylinder pushes the guide wheel to move relative to the platform to change the tightness of the track chain.

9. The automatic pigtail cable retracting and releasing device according to claim 1, characterized in that: A machine room is arranged on the platform, and the machine room includes a high-voltage room, a low-voltage room and a brake resistor room. A transformer and a high-voltage switch cabinet are arranged in the high-voltage room, a PLC controller, a frequency converter low-voltage switch and a relay are arranged in the low-voltage room, and a brake resistor and a cooling fan are arranged in the brake resistor room.

10. The automatic pigtail cable retracting and releasing device according to claim 1, characterized in that: A fence and a ladder are arranged at the edge of the platform.

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