Cable take-up and pay-off device

Abstract

The utility model relates to the technical field of cable take-up and pay-off devices, in particular to a cable take-up and pay-off device which comprises an installation support, a cable assembly and a protective cover. The mounting bracket is arranged on electric equipment; the cable assembly comprises a cable reel and a driving mechanism, and the cable reel is rotationally arranged on the mounting bracket; the driving mechanism is arranged on the mounting bracket, an output shaft of the driving mechanism is connected with the cable reel, and the driving mechanism can drive the cable reel to take up or pay off a cable; the protective cover is connected with the installation support or the electric equipment, and the protective cover is located above the cable reel and covers the cable reel. The driving mechanism can drive the cable reel to take up or pay off the cable so as to adapt to different distances between electric equipment and a power supply, and the protective cover covers the cable reel so as to prevent falling rocks from entering the cable reel to damage the cable. And the situation that the cable is stuck due to falling rocks in the cable winding and unwinding process is avoided, and the cable winding and unwinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable retracting and releasing devices, in particular to a cable retracting and releasing device. Background Art

[0002] With the improvement of the mechanization degree of coal mine operations, the number of various types of mechanical equipment in underground coal mines has gradually increased. For the purpose of explosion protection, underground equipment cannot use power sources such as internal combustion engines that will directly produce open flames. Therefore, most equipment such as excavator loaders, drilling vehicles, rock loaders, repair machines, etc. use electric motors as power sources.

[0003] Because power is transmitted via wires, the cables must move with the equipment as it moves. Mine electricity has high voltage (over 380V), thick protective layers, and heavy cables, making manual cable handling time-consuming and labor-intensive. Consequently, various cable reels have become commercially available. These reels are mounted on electrical equipment and can be used to retract and release cables when underground equipment is moved.

[0004] Currently, most cable reels on the market are motor-driven and require their own power supply, leaving them vulnerable to further improvement. Furthermore, due to space constraints underground, the reeling and unreeling of cables hundreds of meters long requires the cables to be arranged in multiple layers to save space. Furthermore, when operating underground, falling coal and rocks can get caught between the two layers of cable during reeling and unreeling, exacerbating cable wear.

[0005] Therefore, it is necessary to provide a new cable retracting and unreeling device to solve the above technical problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a cable retracting and releasing device, aiming to solve the problem that the existing cable device is easily affected by falling rocks and thus damages the cable.

[0007] To achieve the above-mentioned purpose, the cable retracting and releasing device proposed in the present invention includes a mounting bracket, a cable assembly and a protective cover;

[0008] The mounting bracket is arranged on the electrical equipment;

[0009] The cable assembly includes a cable reel and a drive mechanism, wherein the cable reel is rotatably mounted on the mounting bracket; the drive mechanism is mounted on the mounting bracket, and an output shaft of the drive mechanism is connected to the cable reel, and the drive mechanism can drive the cable reel to retract or release the cable;

[0010] The protective cover is connected to the mounting bracket or the electrical equipment, and the protective cover is located above the cable reel and covers the cable reel.

[0011] Optionally, the protective cover includes a mounting seat and a protective plate, the mounting seat is connected to the mounting bracket or the electrical equipment; the protective plate is arranged on the mounting seat, the protective plate is provided with an inclined surface inclined along the central axis of the cable reel, and the protective plate covers the cable reel;

[0012] Alternatively, the protective cover includes a guide portion and a discharge portion, the guide portion covers the cable reel, and the guide portion is tapered in a vertical downward direction; one end of the discharge portion is connected to the tapered end of the guide portion, and the other end is connected to the mounting bracket or electrical equipment, and the discharge portion can connect the guide portion with the external environment.

[0013] Optionally, the cable reel comprises a reel body and a cable, the cable is wound on the reel body in multiple layers, and the multiple turns of the cable in each layer are arranged sequentially along the central axis of the cable reel, a first end of the cable is connected to an electrical device, and a second end is connected to a power source;

[0014] The cable assembly also includes a cable arrangement mechanism and a transmission mechanism. The cable arrangement mechanism includes a screw rod and a wire arrangement limiting structure. The screw rod is rotatably arranged on the mounting bracket, and the screw rod is connected to the output shaft of the driving mechanism through the transmission mechanism; the wire arrangement limiting structure is threadedly connected to the screw rod, and the cable limit is located in the wire arrangement limiting structure and is in rolling contact with the wire arrangement limiting structure; the driving mechanism can drive the screw rod to rotate through the transmission mechanism, so that the screw rod drives the wire arrangement limiting structure to move back and forth along the central axis of the cable reel.

[0015] Optionally, the cable limiting structure includes a slide, a cable management box and two rollers, the slide is threadedly connected to the screw; the cable management box is arranged on the slide; the two rollers are arranged in a vertical direction and are rotatably connected to the cable management box, and the cable passes through the gap between the two rollers and rolls in contact with the two rollers respectively.

[0016] Optionally, the screw rod is provided with two sets of spiral grooves with opposite rotation directions, and the slide seat is threadedly connected to the screw rod through the spiral grooves.

[0017] Optionally, the transmission mechanism includes a chain and two sprockets, the two sprockets are respectively arranged on the output shaft of the driving mechanism and the screw rod, and the two sprockets are driven by the chain.

[0018] Optionally, the cable arrangement mechanism further includes a guide rod, which is horizontally arranged on the mounting bracket, and the cable arrangement limiting structure is slidably arranged on the guide rod.

[0019] Optionally, the cable reeling and winding device further includes a rotating junction box, a high-voltage current collector and a fixed junction box, the rotating junction box and the high-voltage current collector are both arranged on the cable drum body, and the high-voltage current collector is electrically connected to the cable through the rotating junction box; the fixed junction box is arranged on the mounting bracket or the electrical equipment, the fixed junction box is rotatably connected to the output end of the high-voltage current collector, and the fixed junction box is electrically connected to the electrical equipment.

[0020] In the technical solution of the present utility model, when the electrical equipment moves, the driving mechanism can drive the cable reel to retract or release the cable to adapt to the different distances between the electrical equipment and the power source, and the protective cover covers the cable reel to prevent falling rocks from entering the cable reel and causing damage to the cable. It also avoids the situation where the cable is stuck due to falling rocks during the reeling and releasing process, thereby improving the efficiency of the cable reeling and releasing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a schematic structural diagram of the cable retracting and unreeling device in Example 1 of the present utility model;

[0023] Figure 2 Schematic diagram of the relative positions of the protective cover and the cable reel in Example 1 of the present utility model;

[0024] Figure 3 It is a top view of the partial structure of the cable retracting and unreeling device in Example 1 and Example 2 of the present utility model;

[0025] Figure 4 Schematic diagram of the structure of the cable arrangement mechanism in Example 1 and Example 2 of the present utility model;

[0026] Figure 5 This is a schematic structural diagram of the cable assembly and protective cover in Example 2 of the present utility model.

[0027] Description of Figure Numbers:

[0028] 1. Mounting bracket, 2. Cable assembly, 2.1. Cable reel, 2.1.1. Reel body, 2.1.2. Cable, 2.2. Driving mechanism, 2.3. Cable arrangement mechanism, 2.3.1. Screw rod, A1. Spiral groove, 2.3.2. Cable arrangement limiting structure, B1. Slide, B2. Wire management box, B3. Roller, 2.3.3. Guide rod, 2.4. Transmission mechanism, 2.4.1. Chain, 2.4.2. Sprocket, 3. Protective cover, 3.1. Guide part, 3.2. Discharge part, 3.3. Mounting seat, 3.3.1. Base, 3.3.2. Side panel, 3.4. Protective plate, 4. Rotating junction box, 5. High-voltage current collector, 6. Fixed junction box.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0031] The utility model provides a cable retracting and releasing device, which aims to solve the problem that the existing cable device is easily affected by falling rocks and thus damages the cable.

[0032] Example 1

[0033] like Figures 1 to 4 As shown, the cable reeling and releasing device includes a mounting bracket 1, a cable assembly 2 and a protective cover 3, and the mounting bracket 1 is arranged on the electrical equipment; the cable assembly 2 includes a cable reel 2.1 and a driving mechanism 2.2, and the cable reel 2.1 is rotatably arranged on the mounting bracket 1; the driving mechanism 2.2 is arranged on the mounting bracket 1, and the output shaft of the driving mechanism 2.2 is connected to the cable reel 2.1, and the driving mechanism 2.2 can drive the cable reel 2.1 to retract or release the cable line 2.1.2; the protective cover 3 is connected to the mounting bracket 1 or the electrical equipment, and the protective cover 3 is located above the cable reel 2.1 and covers the cable reel 2.1. When the electrical equipment moves, the driving mechanism 2.2 can drive the cable reel 2.1 to retract or release the cable 2.1.2 to adapt to the different distances between the electrical equipment and the power source, and the protective cover 3 covers the cable reel 2.1 to prevent falling rocks from entering the cable reel 2.1 and causing damage to the cable 2.1.2. It also avoids the situation where the cable 2.1.2 is stuck due to falling rocks during the reeling and releasing process, thereby improving the efficiency of the reeling and releasing operation of the cable 2.1.2.

[0034] The protective cover 3 includes a mounting base 3.3 and a protective plate 3.4. The mounting base 3.3 is connected to the mounting bracket 1 or the electrical device. The protective plate 3.4 is rotatably mounted on the mounting base 3.3 and has an inclined surface arranged along the central axis of the cable reel 2.1. The protective plate 3.4 covers the cable reel 2.1. The protective plate 3.4 completely covers the top of the cable reel 2.1 to effectively prevent falling rocks from entering the cable reel 2.1. Fallen rocks slide down the inclined surface and avoid accumulating on the protective plate 3.4. In this embodiment, the mounting seat 3.3 includes a base 3.3.1 and a side panel 3.3.2. The base is arranged on the mounting bracket 1 or the electrical equipment. The side panel 3.3.2 is rotatably connected to the base 3.3.1, and the protective plate 3.4 is arranged on the side panel 3.3.2. The side panel 3.3.2 is staggered with the cable reel 2.1. The side panel 3.3.2 can be rotated relative to the base 3.3.1 to adjust the setting angle of the protective plate 3.4, and can be fixed at different angles by a locking member or a rack limiting structure.

[0035] Specifically, the cable reel 2.1 includes a reel body 2.1.1 and a cable 2.1.2. The cable 2.1.2 is wound on the reel body 2.1.1 in multiple layers. The multiple turns of cable 2.1.2 in each layer are arranged in sequence along the central axis of the cable reel 2.1. The first end of the cable 2.1.2 is connected to the electrical equipment, and the second end is connected to the power supply. The cable assembly 2 also includes a cable arrangement mechanism 2.3 and a transmission mechanism 2.4. The cable arrangement mechanism 2.3 includes a screw rod 2.3.1 and a cable arrangement limit structure 2.3.2. The screw rod 2.3.1 The rotation is set on the mounting bracket 1, and the screw rod 2.3.1 is connected to the output shaft of the driving mechanism 2.2 through the transmission mechanism 2.4; the cable limiting structure 2.3.2 is threadedly connected to the screw rod 2.3.1, and the cable 2.1.2 is limited in the cable limiting structure 2.3.2 and is in rolling contact with the cable limiting structure 2.3.2; the driving mechanism 2.2 can drive the screw rod 2.3.1 to rotate through the transmission mechanism 2.4, so that the screw rod 2.3.1 drives the cable limiting structure 2.3.2 to move back and forth along the central axis of the cable reel 2.1. The cable reel 2.1 rotates under the drive of the driving mechanism 2.2 to release or retract the cable rope. At the same time, the driving mechanism 2.2 drives the screw rod 2.3.1 to rotate through the transmission mechanism 2.4, and then the screw rod 2.3.1 drives the cable arrangement limiting structure 2.3.2 to move back and forth along the central axis of the cable reel 2.1.1. When paying out the cable, the cable arrangement limiting structure 2.3.2 can adjust the position of the cable 2.1.2 in real time to correspond to the position on the cable drum body 2.1.1 closest to the second end of the cable 2.1.2, thereby avoiding excessive wear between the cables 2.1.2 caused by excessive speed when paying out the cable; during the reeling process, the cable arrangement limiting structure 2.3.2 drives the cable 2.1.2 to move back and forth along the central axis of the cable reel 2.1, so that the retracted cable 2.1.2 can be arranged tightly and orderly on the cable drum body 2.1.1, avoiding the entanglement of the cables 2.1.2 at each layer and affecting the subsequent paying out efficiency.

[0036] The cable arrangement and limiting structure 2.3.2 comprises a slide B1, a cable management box B2, and two rollers B3. Slide B1 is threadedly connected to the screw 2.3.1; the cable management box B2 is mounted on slide B1. The two rollers B3 are vertically arranged and rotationally connected to the cable management box B2. The cable 2.1.2 passes through the gap between the two rollers B3 and rolls against each roller B3. When reeling or releasing the cable, the paired rollers B3 sandwich the cable 2.1.2. As slide B1 slides under the action of screw 2.3.1, the paired rollers B3 apply tension to the cable 2.1.2, adjusting its position on the reel body 2.1.1. This ensures that the cable 2.1.2 is tightly and orderly arranged on the cable reel 2.1.1. In another example of this embodiment, there may be no gap between the paired rollers B3, and the function of clamping the cable 2.1.2 is achieved by slotting the cylindrical surfaces of the paired rollers B3.

[0037] Furthermore, the screw rod 2.3.1 is provided with two sets of spiral grooves A1 with opposite rotation directions, and the slide B1 is threadedly connected to the screw rod 2.3.1 through the spiral grooves A1. After the slide B1 moves to one end of the screw rod 2.3.1 through one set of spiral grooves A1, it moves to the other end of the screw rod 2.3.1 through the other set of spiral grooves A1. This realizes the reciprocating motion of the cable organizer during the winding process, thereby arranging the cables.

[0038] Furthermore, the transmission mechanism 2.4 includes a chain 2.4.1 and two sprockets 2.4.2. The two sprockets 2.4.2 are respectively mounted on the output shaft of the drive mechanism 2.2 and the screw rod 2.3.1, and the two sprockets 2.4.2 are driven by the chain 2.4.1. The chain 2.4.1 meshes with the two sprockets 2.4.2 to achieve transmission. Without the need for a separate motor or electric drive, the reciprocating cable arrangement function is achieved by the sprockets 2.4.2 on the cable reel 2.1.

[0039] The cable arrangement mechanism 2.3 also includes a guide rod 2.3.3, which is horizontally mounted on the mounting bracket 1. The cable arrangement limiting structure 2.3.2 is slidably mounted on the guide rod 2.3.3. There can be multiple guide rods 2.3.3, each of which serves to guide the cable arrangement limiting structure 2.3.2, thereby ensuring its stability during reciprocating movement.

[0040] The cable reel-and-reel device also includes a rotating junction box 4, a high-voltage current collector 5, and a fixed junction box 6. Both the rotating junction box 4 and the high-voltage current collector 5 are mounted on the cable reel body 2.1.1. The high-voltage current collector 5 is electrically connected to the cable 2.1.2 via the rotating junction box 4. The fixed junction box 6 is mounted on the mounting bracket 1 or on the electrical device. The fixed junction box 6 is rotationally connected to the output end of the high-voltage current collector 5 and is electrically connected to the electrical device. The cable 2.1.2 is electrically connected to the electrical device via the rotating junction box 4, the high-voltage current collector 5, and the fixed junction box 6, in sequence. This ensures normal power supply to the electrical device while accommodating the rotation of the cable reel 2.1.

[0041] Example 2

[0042] like Figure 5As shown, the difference from Example 1 is that the protective cover 3 includes a guide portion 3.1 and a discharge portion 3.2. The guide portion 3.1 covers the cable reel 2.1 and is tapered in the vertical downward direction. One end of the discharge portion 3.2 is connected to the tapered end of the guide portion 3.1, and the other end is connected to the mounting bracket 1 or the electrical equipment. The discharge portion 3.2 can connect the guide portion 3.1 with the external environment. The guide portion 3.1 can collect fallen rocks that fall on the cable reel 2.1 and guide the fallen rocks out of the discharge portion 3.2 and discharge them to the external environment. This can prevent fallen rocks from falling into the cable reel 2.1 and damaging the cable 2.1.2, and can also prevent fallen rocks from hitting other components. The protective cover 3 can provide effective protection for the cable reel and pay-off device.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cable retracting and unreeling device, characterized in that: The cable retracting and releasing device comprises a mounting bracket (1), a cable assembly (2) and a protective cover (3); The mounting bracket (1) is arranged on the electrical equipment; The cable assembly (2) comprises a cable reel (2.1) and a driving mechanism (2.2); the cable reel (2.1) is rotatably mounted on the mounting bracket (1); the driving mechanism (2.2) is mounted on the mounting bracket (1), and an output shaft of the driving mechanism (2.2) is connected to the cable reel (2.1); the driving mechanism (2.2) is capable of driving the cable reel (2.1) to retract or release a cable (2.1.2); The protective cover (3) is connected to the mounting bracket (1) or the electrical equipment, and the protective cover (3) is located above the cable reel (2.1) and covers the cable reel (2.1).

2. The cable retracting and unreeling device according to claim 1, wherein: The protective cover (3) comprises a mounting seat (3.3) and a protective plate (3.4); the mounting seat (3.3) is connected to the mounting bracket (1) or the electrical equipment; the protective plate (3.4) is arranged on the mounting seat (3.3); the protective plate (3.4) is provided with an inclined surface inclined along the central axis of the cable reel (2.1), and the protective plate (3.4) covers the cable reel (2.1); Alternatively, the protective cover (3) comprises a guide portion (3.1) and a discharge portion (3.2), wherein the guide portion (3.1) covers the cable reel (2.1), and the guide portion (3.1) is arranged to be tapered in a vertically downward direction; one end of the discharge portion (3.2) is connected to the tapered end of the guide portion (3.1), and the other end is connected to the mounting bracket (1) or the electrical equipment, and the discharge portion (3.2) can connect the guide portion (3.1) with the external environment.

3. The cable retracting and unreeling device according to claim 2, wherein: The cable reel (2.1) comprises a reel body (2.1.1) and a cable (2.1.2), wherein the cable (2.1.2) is wound on the reel body (2.1.1) in multiple layers, and the multiple turns of the cable (2.1.2) in each layer are arranged in sequence along the central axis of the cable reel (2.1), and the first end of the cable (2.1.2) is connected to the electrical equipment, and the second end is connected to the power supply; The cable assembly (2) further comprises a cable arrangement mechanism (2.3) and a transmission mechanism (2.4); the cable arrangement mechanism (2.3) comprises a screw rod (2.3.1) and a cable arrangement limiting structure (2.3.2); the screw rod (2.3.1) is rotatably arranged on the mounting bracket (1); the screw rod (2.3.1) is connected to the output shaft of the drive mechanism (2.2) through the transmission mechanism (2.4); the cable arrangement limiting structure (2.3.2) and the screw rod are connected to each other; (2.3.1) is threadedly connected, the cable (2.1.2) is limited in the cable limiting structure (2.3.2) and is in rolling contact with the cable limiting structure (2.3.2); the driving mechanism (2.2) can drive the screw rod (2.3.1) to rotate through the transmission mechanism (2.4), so that the screw rod (2.3.1) drives the cable limiting structure (2.3.2) to move back and forth along the central axis of the cable reel (2.1).

4. The cable retracting and unreeling device according to claim 3, wherein: The cable arrangement and limiting structure (2.3.2) includes a slide (B1), a cable management box (B2) and two rollers (B3); the slide (B1) is threadedly connected to the screw rod (2.3.1); the cable management box (B2) is arranged on the slide (B1); the two rollers (B3) are arranged in a vertical direction and are rotationally connected to the cable management box (B2); the cable (2.1.2) passes through the gap between the two rollers (B3) and respectively rolls in contact with the two rollers (B3).

5. The cable retracting and unreeling device according to claim 4, characterized in that: The screw rod (2.3.1) is provided with two groups of spiral grooves (A1) with opposite rotation directions, and the slide seat (B1) is threadedly connected to the screw rod (2.3.1) through the spiral grooves (A1).

6. The cable retracting and unreeling device according to claim 5, characterized in that: The transmission mechanism (2.4) comprises a chain (2.4.1) and two sprockets (2.4.2); the two sprockets (2.4.2) are respectively arranged on the output shaft of the drive mechanism (2.2) and the screw rod (2.3.1), and the two sprockets (2.4.2) are driven by the chain (2.4.1).

7. The cable retracting and unreeling device according to any one of claims 3 to 6, characterized in that: The cable arrangement mechanism (2.3) further comprises a guide rod (2.3.3), wherein the guide rod (2.3.3) is horizontally arranged on the mounting bracket (1), and the cable arrangement limiting structure (2.3.2) is slidably arranged on the guide rod (2.3.3).

8. The cable retracting and unreeling device according to any one of claims 3 to 6, characterized in that: The cable retracting and unreeling device further comprises a rotating junction box (4), a high-voltage current collector (5) and a fixed junction box (6); the rotating junction box (4) and the high-voltage current collector (5) are both arranged on the cable drum body (2.1.1); the high-voltage current collector (5) is electrically connected to the cable (2.1.2) via the rotating junction box (4); the fixed junction box (6) is arranged on the mounting bracket (1) or the electrical equipment; the fixed junction box (6) is rotatably connected to the output end of the high-voltage current collector (5), and the fixed junction box (6) is electrically connected to the electrical equipment.

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