A high-voltage cable car on-board cable collection device

Abstract

The application belongs to the technical field of cable collecting devices, and particularly relates to a high-voltage cable vehicle-mounted cable collecting device, which comprises a vehicle body and a cable collecting device, wherein the cable collecting device is arranged on the vehicle body; the cable collecting device comprises four fixed columns, a fixed track and a moving disc vehicle, and the four fixed columns are all fixed on the vehicle body; the moving disc vehicle is used to drive the guiding assembly and the cable winding on the four fixed columns. The waist-shaped (runway-shaped) fixed track and the four fixed columns distributed in a rectangular shape are used to form a waist-shaped ring approximately in a rectangular shape after the cable is wound, and the bending curvature radius is greater than that of a traditional disc-type winding mechanism, so that the cable insulation layer is effectively prevented from being cracked, the sheath is effectively prevented from being damaged, and the internal core wire is effectively prevented from being broken due to a too small curvature radius, and the service life and power supply safety of the cable in the repeated winding and unwinding process are greatly prolonged.

Description

Technical Field

[0001] This invention belongs to the technical field of cable collection devices, specifically relating to a high-voltage cable vehicle-mounted cable collection device. Background Technology

[0002] In underground coal mining faces, as the coal mining equipment continues to advance, the high-voltage cables supplying power to large equipment such as coal mining machines, scraper conveyors, and transfer machines must be moved accordingly.

[0003] To achieve the mechanization and automation of cable winding and unwinding, various cable winding devices have emerged in the prior art. For example, Chinese patent CN202411238759.3 discloses a self-propelled cable train for coal mines, which is equipped with a cable reel assembly on a flatbed car. A drive unit group rotates a disc-shaped cable reel to achieve automatic cable winding and unwinding. Another Chinese patent CN202222523436.1 proposes an automatic cable winding vehicle for coal mine roadways, using a cable reel roller as the winding body and a tracked vehicle that moves with the working face. All of the above solutions employ a disc-shaped or cylindrical cable winding mechanism, requiring the cable to be tightly wound around a central axis or drum.

[0004] However, this type of disc-wound structure has inherent defects in practical applications: on the one hand, the cable is forced to bend to a small bending radius on the reel, and long-term repeated winding and unwinding can easily lead to insulation layer compression deformation, sheath cracking, or even internal core wire breakage, accelerating cable aging and increasing the risk of power supply failure; on the other hand, in the underground environment where the vehicle body size is limited, the diameter of the disc or drum cannot be increased arbitrarily, resulting in a limited single-turn winding length. If the total winding length of the cable is to be increased, the equipment volume can only be increased or the number of reels can be increased, which contradicts the requirements of limited underground space and lightweight equipment. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a high-voltage cable vehicle-mounted cable collection device that can reduce damage to the cables after collection and increase the collection length.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A high-voltage cable vehicle-mounted cable collection device includes a vehicle body and a cable collection device, wherein the cable collection device is mounted on the vehicle body; the cable collection device includes fixed columns, fixed rails and a movable trolley, wherein there are four fixed columns, all of which are fixed to the vehicle body; a connecting frame is fixedly connected to the vehicle body, and the fixed rails are fixedly connected to the connecting frame and located above the four fixed columns. The mobile trolley is set on a fixed track and can move along the fixed track; the fixed track is waist-shaped; the mobile trolley is equipped with a guide component connected to a cable; the movement of the mobile trolley causes the guide component and the cable to be coiled around the four fixed columns.

[0007] The fixed column includes a base and a column. There are two columns, and the bottom of each column is fixedly connected to the base. A connecting plate is fixedly connected between the two columns. The base is fixedly connected to the vehicle body.

[0008] The fixed track includes two straight tracks and two circular arc tracks. The two ends of the two straight tracks are each connected to a circular arc track, forming a complete waist-shaped fixed track after connection.

[0009] The mobile trolley includes a mobile frame, a pneumatic motor, and a connecting assembly; the mobile frame is connected to a fixed rail via the connecting assembly; the housing of the pneumatic motor is fixedly connected to the mobile frame, the output shaft of the pneumatic motor is provided with a drive gear, and the fixed rail is provided with a toothed portion that meshes with the drive gear.

[0010] The inner and outer rings of the fixed track are provided with a ring of reinforcing ribs. The connecting assembly includes a hanging plate, a guide wheel and a support wheel. A hanging plate is fixedly connected to each side of the movable frame. A guide wheel is rotatably connected to each hanging plate. The guide wheel contacts the side of the fixed track. At least one pair of support wheels is rotatably connected to each hanging plate. The reinforcing rib is located between the corresponding pair of support wheels.

[0011] The guiding assembly includes a guide frame, a roller, and a limiting rod. The guide frame is rotatably connected to the movable frame, and the roller is rotatably connected to the guide frame. An opening is provided on one side of the guide frame, and the limiting rod is inserted into the guide frame to block the opening.

[0012] The guide frame is rotatably connected to a rotating shaft, which is located above the idler roller; the guide frame is C-shaped; the guide frame is provided with a plug-in lug for inserting a limit rod, and a baffle is fixedly connected to the upper end of the limit rod.

[0013] A triple air source unit is fixedly connected to the fixed track. The triple air source unit is connected to the pneumatic motor through an air pipe and a control valve. The connecting frame is provided with two guide rings that cooperate with the air pipe, through which the air pipe can pass. One guide ring is located above the triple air source unit, and the other two guide rings are located above the middle of the fixed track. A support roller is rotatably connected to the connecting frame.

[0014] Both the linear track and the circular track are equipped with hinge seats, and a hinge shaft is provided between the two hinge seats; a fixing component is provided between the linear track and the circular track to restrict the rotation between the linear track and the circular track; both the linear track and the circular track are detachably connected to the connecting frame by connecting pins.

[0015] The fastener includes a pair of fixing plates and fixing pins; pin holes are provided on both the linear track and the arc track, and the two fixing plates are located on both sides of the connection between the linear track and the arc track; two fixing pins are provided, and the two fixing pins pass through the pin holes on the linear track and the arc track respectively, and snap rings are connected to both sides of the two fixing pins; the fastener is located on the toothed part of the fixing track, and the toothed part is provided with grooves that cooperate with the fixing plates.

[0016] Compared with the prior art, the beneficial effects of this invention are: The cable is wound into a nearly rectangular waist-shaped loop by using a waist-shaped (racetrack-like) fixed track and four rectangular fixed columns. The bending radius is larger than that of the traditional disc-type winding mechanism, which effectively avoids the cable insulation layer cracking, sheath damage or internal core wire fatigue fracture caused by the excessively small bending radius. This greatly extends the service life of the cable and the power supply safety during repeated winding and unwinding.

[0017] The four fixed columns are located at the four corners of the vehicle body, and the perimeter of the rectangle they form is greater than that of a traditional disc with the same vehicle body size. When the moving trolley travels one circle along the waist-shaped track, the length of the cable wound in a single circle is longer, thus significantly increasing the total cable storage length without changing the vehicle body size. This meets the power supply needs for longer distances and reduces the number of equipment train sections or the floor space occupied.

[0018] The fixed posts adopt a double-post structure. After the cable is wound, it forms multi-point contact with the two posts. Compared with the traditional single-point contact method, it increases the contact area, disperses the clamping force and friction force on the cable, avoids local stress concentration, and further reduces wear and indentation on the cable outer sheath.

[0019] The fixed track is composed of a straight track and a circular track hinged together, and the entire assembly is detachably connected to the connecting frame. When maintenance or relocation is required, the fixing components can be released, allowing the circular track to rotate and fold, significantly reducing its size and facilitating downhole transport and rapid replacement. The connecting components for the mobile turning cart can be inserted and installed from the end of the track, reducing assembly difficulty.

[0020] The guide frame is rotatably connected to the moving frame and is equipped with rollers, limit rods, and a rotating shaft. The cable is inserted through a side opening and locked by the limit rod, facilitating easy installation and disassembly. The rollers and rotating shaft convert sliding friction into rolling friction, significantly reducing traction resistance and cable scratches. It is driven by a pneumatic motor, ensuring stable speed and meeting downhole explosion-proof requirements. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of the structure of the fixed column of the present invention; Figure 4 This is a schematic diagram of the structure of the mobile disc trolley and guide assembly of the present invention; Figure 5 yes Figure 4 A cross-sectional view of the structure shown; Figure 6 This is a schematic diagram of the structure of the fixed track and connecting frame of the present invention; Figure 7 yes Figure 6 A schematic diagram of the structure from another direction shown; Figure 8 yes Figure 7 A magnified view of a section at point B in the middle; Figure 9 This is a schematic diagram showing the contact state between the cable and the fixed column; Figure 10 This is a schematic diagram of the connection structure between the connecting component and the fixed track of the present invention; Wherein: 1 is the vehicle body, 2 is the cable collection device, 3 is the fixed column, 30 is the base, 31 is the column, 32 is the connecting plate, 4 is the fixed track, 40 is the straight track, 41 is the circular track, 42 ​​is the toothed part, 43 is the reinforcing rib, 44 is the groove, 5 is the moving trolley, 50 is the moving frame, 51 is the pneumatic motor, 52 is the connecting assembly, 520 is the hanging plate, 521 is the guide wheel, 522 is the support wheel, 53 is the drive gear, 6 is the connecting frame, 7 is the guiding assembly, 70 is the guide frame, 71 is the idler roller, 72 is the limit rod, 73 is the rotating shaft, 74 is the plug-in ear, 75 is the baffle, 8 is the air source triple unit, 9 is the control valve, 10 is the guide ring, 11 is the support idler roller, 12 is the hinge seat, 13 is the fixing part, 130 is the fixing plate, 131 is the fixing pin, 132 is the snap ring, 14 is the connecting pin, and 15 is the cable. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] like Figure 1 and Figure 9 As shown, a high-voltage cable vehicle on-board cable collection device includes a vehicle body 1 and a cable collection device 2, with the cable collection device 2 mounted on the vehicle body 1; specifically, the vehicle body 1 is the body 1 of a self-propelled train.

[0024] The cable collection device 2 includes fixed columns 3, fixed rails 4, and a movable trolley 5. Four fixed columns 3 are provided, all fixed to the vehicle body 1. A connecting frame 6 is fixedly connected to the vehicle body 1. The fixed rails 4 are fixedly connected to the connecting frame 6 and located above the four fixed columns 3. The fixed rails 4 are waist-shaped (racetrack-shaped), and the movable trolley 5 is mounted on the fixed rails 4 and can move along the fixed rails 4.

[0025] In practical use, the cable collection device 2 is located between two self-propelled trains; both ends of the cable 15 are fixed to the two self-propelled trains respectively. A guide assembly 7 connected to the cable 15 is provided on the moving cart 5, through which the cable 15 passes. As the moving cart 5 moves the guide assembly 7 along the fixed track 4, the cable 15 will coil around the four fixed columns 3; during the coiling process, the cable 15 can be manually supported as needed.

[0026] Because the fixed track 4 is waist-shaped, and the cable 15 is wound around the four fixed posts 3, the curvature of the cable 15 after being wound is less than that of the existing disc cable 15 winding mechanism, which can effectively prevent damage to the cable 15. At the same time, the four fixed posts 3 are distributed at the four corners of the vehicle body 1, forming a rectangular distribution. Therefore, the length of a single turn of the cable 15 is greater than the length of the disc cable 15 winding mechanism, which can effectively increase the storage length of the cable 15.

[0027] Furthermore, such as Figure 3 and Figure 9 As shown, the fixed column 3 includes a base 30 and a column 31. There are two columns 31, and the bottom of the two columns 31 are fixedly connected to the base 30. A connecting plate 32 is fixedly connected between the two columns 31. The base 30 is fixedly connected to the vehicle body 1.

[0028] Each fixed column 3 is set at a certain angle, forming a distribution similar to <>; there are two columns 31, meaning that the cable 15 will contact both columns 31 after being wound; compared to the single point contact of one column 31, by increasing the contact points, the contact range with the cable 15 is increased, which can further protect the cable 15.

[0029] Furthermore, such as Figure 6 and Figure 7 As shown, for ease of installation and production, the fixed track 4 includes two straight tracks 40 and two circular arc tracks 41. Each end of the two straight tracks 40 is connected to a circular arc track 41, forming a complete waist-shaped fixed track 4. Specifically, the fixed connection between the straight tracks 40 and the circular arc tracks 41 can be achieved using bolts, welding, or other methods.

[0030] Furthermore, such as Figure 4 , Figure 5 and Figure 10 As shown, the mobile trolley 5 includes a mobile frame 50, a pneumatic motor 51, and a connecting assembly 52; the mobile frame 50 is connected to the fixed rail 4 via the connecting assembly 52. ​​The housing of the pneumatic motor 51 is fixedly connected to the mobile frame 50, and a drive gear 53 is provided on the output shaft of the pneumatic motor 51. The fixed rail 4 is provided with a toothed portion 42 that meshes with the drive gear 53. After the motor is started, the output shaft drives the drive gear 53 to rotate and mesh with the teeth on the toothed portion 42, thereby realizing the movement of the mobile frame 50 along the fixed rail 4.

[0031] Furthermore, such as Figure 4 , Figure 5 and Figure 10 As shown, a reinforcing rib 43 is provided on the inner and outer rings of the fixed track 4, which can effectively increase the strength of the fixed track 4.

[0032] The connecting assembly 52 includes a hanging plate 520, a guide wheel 521, and a support wheel 522. A hanging plate 520 is fixedly connected to both sides of the movable frame 50. A guide wheel 521 is rotatably connected to each hanging plate 520. The guide wheel 521 contacts the side of the fixed track 4, which can reduce the resistance during the movement.

[0033] Each mounting plate 520 is rotatably connected to at least one pair of support wheels 522, and the reinforcing ribs 43 are located between the corresponding pair of support wheels 522. That is, the reinforcing ribs 43 on both the inner and outer rings correspond to at least one pair of support wheels 522. In addition to improving the strength of the track, the reinforcing ribs 43 can also serve as support for the support wheels 522.

[0034] Meanwhile, since the fixed track 4 consists of a straight track 40 and a circular track 41, during installation and disassembly, one side of the circular track 41 can be separated first, the connecting component 52 can be "inserted" into the straight track 40, and then the other side of the circular track 41 can be connected to the straight track 40. This structural design facilitates assembly and disassembly.

[0035] Furthermore, such as Figure 4 , Figure 5 and Figure 10 As shown, the guiding assembly 7 includes a guide frame 70, a roller 71, and a limiting rod 72. The guide frame 70 is rotatably connected to the movable frame 50 and can rotate during the winding process of the cable 15 to cooperate with the winding motion. The roller 71 is rotatably connected to the guide frame 70. One side of the guide frame 70 has an opening, allowing the cable 15 to enter the guide frame 70 and contact the roller 71 during installation. The limiting rod 72 is inserted into the guide frame 70. After the cable 15 enters the guide frame 70, the limiting rod 72 blocks the opening, thus restricting the cable 15 from moving out of the opening.

[0036] The above-described structure can guide the cable 15 and facilitate connection with it.

[0037] Furthermore, such as Figure 4 and Figure 5 As shown, a rotating shaft 73 is rotatably connected to the guide frame 70, and the rotating shaft 73 is located above the idler roller 71; this prevents the upper surface of the cable 15 from contacting the upper part of the guide frame 70, reducing damage. Specifically, the guide frame 70 is C-shaped; the guide frame 70 is provided with a plug-in ear 74 for inserting a limiting rod 72, and a baffle 75 is fixedly connected to the upper end of the limiting rod 72. When the limiting rod 72 is inserted into the plug-in ear 74, the baffle 75 contacts the upper surface of the plug-in ear 74, restricting the downward movement of the limiting rod 72 and preventing the limiting rod 72 from moving out.

[0038] Furthermore, such as Figure 2 As shown, a triple air supply unit 8 is fixedly connected to the fixed track 4. The triple air supply unit 8 is connected to the pneumatic motor 51 via air pipes and a control valve 9. The control valve 9 can be manually operated. Since the moving speed of the rotating trolley 5 is relatively slow during the winding process, the operator can stand outside the trolley 1 and operate the control valve 9 to control it. Of course, it can also be set to be an automatic control valve 9, controlled by remote control or other means, depending on the actual situation.

[0039] Furthermore, such as Figure 2 As shown, to support the air tube, two guide rings 10 are provided on the connecting frame 6 to cooperate with the air tube, through which the air tube can pass; one guide ring 10 is located above the air source triplet 8, and the two guide rings 10 are located above the middle of the fixed track 4. A support roller 11 is rotatably connected to the connecting frame 6, and the cable 15 can be mounted on the support roller 11.

[0040] Furthermore, such as Figure 6 and 7 As shown, both the linear track 40 and the circular track 41 are equipped with hinge seats 12, and a hinge shaft is provided between the two hinge seats 12; that is, the circular track 41 and the linear track 40 are connected by a hinge. A fixing member 13 is provided between the linear track 40 and the circular track 41. During normal operation, the fixing member 13 restricts the rotation between the linear track 40 and the circular track 41, keeping the linear track 40 and the circular track 41 in a fixed state.

[0041] Both the straight track 40 and the circular track 41 are detachably connected to the connecting frame 6 via connecting pins 14, meaning the fixed track 4 can be completely separated from the connecting frame 6. When maintenance or disassembly of the fixed track 4 is required, the restriction imposed by the fixing frame on the circular track 41 and the straight track 40 can be resolved; the circular track 41 can be rotated and folded to reduce its size.

[0042] Furthermore, such as Figure 8 As shown, the fixing member 13 includes a pair of fixing plates 130 and fixing pins 131; both the linear track 40 and the arc track 41 are provided with pin holes, and the two fixing plates 130 are located on both sides of the connection between the linear track 40 and the arc track 41. The two fixing plates 130 can "clamp" the linear track 40 and the arc track 41.

[0043] There are two fixing pins 131. The two fixing pins 131 pass through the pin holes on the linear track 40 and the circular track 41 respectively. Both sides of the two fixing pins 131 are connected to snap rings 132. The snap rings 132 can fix the fixing pins 131 and prevent them from moving out of the pin holes.

[0044] The fixing member 13 is located in the toothed portion 42 of the fixed track 4. The toothed portion 42 is provided with a groove 44 that mates with the fixing plate 130. After installation, the fixing plate 130 is located in the groove 44. The groove 44 and the retaining spring 132 are designed to prevent protrusion at the connection point and avoid affecting the movement of the moving trolley 5.

[0045] The above description only illustrates preferred embodiments of the present invention, but the present invention is not limited to the above embodiments.

Claims

1. A high-voltage cable vehicle-mounted cable collection device, comprising a vehicle body (1) and a cable collection device (2), wherein the cable collection device (2) is mounted on the vehicle body (1); characterized in that: The cable collection device (2) includes fixed columns (3), fixed rails (4) and a mobile trolley (5). There are four fixed columns (3), and all four fixed columns (3) are fixed on the vehicle body (1). The vehicle body (1) is fixedly connected to a connecting frame (6). The fixed rails (4) are fixedly connected to the connecting frame (6) and located above the four fixed columns (3). The mobile trolley (5) is set on the fixed track (4) and can move along the fixed track (4); the fixed track (4) is waist-shaped; the mobile trolley (5) is provided with a guide component (7) connected to the cable (15); the mobile trolley (5) moves to drive the guide component (7) and the cable (15) to coil around the four fixed columns (3); The fixed track (4) includes two straight tracks (40) and two circular arc tracks (41). The two ends of the two straight tracks (40) are respectively connected to a circular arc track (41) to form a complete waist-shaped fixed track (4). The mobile trolley (5) includes a mobile frame (50), a pneumatic motor (51) and a connecting assembly (52). The mobile frame (50) is connected to the fixed track (4) through the connecting assembly (52). The housing of the pneumatic motor (51) is fixedly connected to the mobile frame (50). The output shaft of the pneumatic motor (51) is provided with a drive gear (53), and the fixed track (4) is provided with a toothed part (42) that cooperates with the drive gear (53). Both the linear track (40) and the arc track (41) are provided with hinge seats (12), and a hinge shaft is provided between the two hinge seats (12); a fixing member (13) is provided between the linear track (40) and the arc track (41), and the rotation between the linear track (40) and the arc track (41) is restricted by the fixing member (13); both the linear track (40) and the arc track (41) are detachably connected to the connecting frame (6) by connecting pins (14); During installation and disassembly, first separate the arc track (41) on one side from the straight track (40), insert the connecting component (52) into the straight track (40), and then connect the arc track (41) on one side to the straight track (40).

2. The high-voltage cable vehicle-mounted cable collection device according to claim 1, characterized in that: The fixed column (3) includes a base (30) and a column (31). There are two columns (31), and the bottom of the two columns (31) is fixedly connected to the base (30). A connecting plate (32) is fixedly connected between the two columns (31). The base (30) is fixedly connected to the vehicle body (1).

3. The high-voltage cable vehicle on-board cable collection device according to claim 1, characterized in that: The inner and outer rings of the fixed track (4) are provided with a ring of reinforcing ribs (43). The connecting assembly (52) includes a hanging plate (520), a guide wheel (521) and a support wheel (522). A hanging plate (520) is fixedly connected to both sides of the movable frame (50). A guide wheel (521) is rotatably connected to each hanging plate (520). The guide wheel (521) contacts the side of the fixed track (4). At least one pair of support wheels (522) is rotatably connected to each hanging plate (520). The reinforcing ribs (43) are located between the corresponding pair of support wheels (522).

4. The high-voltage cable vehicle on-board cable collection device according to claim 1, characterized in that: The guiding assembly (7) includes a guide frame (70), a roller (71) and a limiting rod (72). The guide frame (70) is rotatably connected to the moving frame (50), and the roller (71) is rotatably connected to the guide frame (70). An opening is provided on one side of the guide frame (70), and the limiting rod (72) is inserted into the guide frame (70) to block the opening.

5. A high-voltage cable vehicle-mounted cable collection device according to claim 4, characterized in that: The guide frame (70) is rotatably connected to a rotating shaft (73), which is located above the idler roller (71); the guide frame (70) is C-shaped; the guide frame (70) is provided with a plug-in ear (74) for inserting a limiting rod (72), and a baffle (75) is fixedly connected to the upper end of the limiting rod (72).

6. The high-voltage cable vehicle on-board cable collection device according to claim 2, characterized in that: A triple air source assembly (8) is fixedly connected to the fixed track (4). The triple air source assembly (8) is connected to the pneumatic motor (51) through an air pipe and a control valve (9). Two guide rings (10) that cooperate with the air pipe are provided on the connecting frame (6). The air pipe passes through the guide rings (10). One of the guide rings (10) is located above the triple air source assembly (8), and the two guide rings (10) are located above the middle part of the fixed track (4). A support roller (11) is rotatably connected to the connecting frame (6).

7. The high-voltage cable vehicle on-board cable collection device according to claim 1, characterized in that: The fixing member (13) includes a pair of fixing plates (130) and fixing pins (131); pin holes are provided on both the linear track (40) and the arc track (41), and the two fixing plates (130) are located on both sides of the connection between the linear track (40) and the arc track (41); there are two fixing pins (131), which pass through the pin holes on the linear track (40) and the arc track (41) respectively, and snap rings (132) are connected to both sides of the two fixing pins (131); the fixing member (13) is located on the toothed part (42) of the fixing track (4), and the toothed part (42) is provided with a groove (44) that mates with the fixing plate (130).

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