Cable connecting device

Abstract

The invention relates to the technical field of port and wharf electric power connection equipment, in particular to a cable connection device which comprises a chassis, a walking mechanism, a winding drum and a pressing and abutting assembly, and the walking mechanism is installed on the chassis and used for driving the chassis to move; the winding drum is installed on the chassis, and the cable is wound on the winding drum or the cable on the winding drum is unwound by rotating around the axis of the winding drum. The pressing and abutting assembly is arranged on the chassis and can slidably abut against the surface of the cable so as to assist the cable to be wound around the outer wall of the winding drum. The pressing and abutting assembly enables the cable to generate certain pressure on the cable at the position just making contact with the winding drum, so that the cable is prevented from loosening from the winding drum due to jolting, it is guaranteed that the cable wound on the winding drum is kept at the same speed all the time, the cable is distributed and stressed on the surface of the winding drum more evenly, and the service life of the cable is prolonged. Local stress concentration caused by cable deflection and accumulation is avoided, and the service life of the cable and the reel is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of port terminal power connection equipment, and in particular to a cable connection device. Background Art

[0002] When a ship is docked at a port, it usually shuts down the main engine and turns on the auxiliary engine to generate electricity to meet the ship's daily power needs. However, this practice will generate air pollutants and noise pollution. In recent years, with the continuous improvement of the automation and intelligence of ports, the ship shore power system has become an important facility for environmental protection and energy saving.

[0003] The shore power system provides land power while the ship is at port, replacing the ship's own generator, reducing air pollution and noise pollution. The ship's shore power system consists of three main parts: the shore power supply system, the ship-shore connection equipment, and the ship's power receiving system. At present, the connection between the ship and the shore power system mainly relies on cables. Operators need to use cable connection equipment to lay the shore power connection cable from the power supply point on the shore to the power connection location of the ship. The existing cable connection equipment includes a wheeled traveling mechanism and a cable line located on the wheeled traveling mechanism. When the shore power supply needs to be connected to the ship, the cable line needs to be laid under the drive of the wheeled traveling mechanism.

[0004] During the implementation process, the wheeled walking mechanism is not stable enough when it is dragged over ground facilities such as shore tracks, cable troughs, and pipe manhole covers. The bumps cause uneven cable winding speed, which causes the cable to be skewed when winding on the drum, making the cable unevenly distributed on the drum. This will cause excessive force on the drum locally, affecting the service life of the drum, and will also make it difficult to retract and release the cable. In extreme cases, the cables may pile up on the drum, further exacerbating the problem of uneven force. Summary of the invention

[0005] The present application provides a cable connection device, which is used to solve the problems in the prior art of uneven cable winding speed and uneven distribution of the cable on the drum due to deviation of the cable when it is wound on the drum.

[0006] The present application provides a cable connection device, comprising: Chassis; The walking mechanism is installed on the chassis and is used to drive the chassis to move; The reel is installed on the chassis and reels the cable onto the reel or unwinds the cable on the reel by rotating around its own axis; The pressing component is arranged on the chassis and can assist the cable to be wound around the outer wall of the reel by slidingly contacting the surface of the cable.

[0007] In one possible design, the pressing component includes: The support ring is located on the outer periphery of the reel, is coaxial with the reel, and can move along the axial direction of the reel. A guide hole is provided on the support ring; A guide rod is inserted into the guide hole along the radial direction of the support ring and can slide along the inner wall of the guide hole. The guide rod is located at the outer end of the support ring and has a stop end. A pressing block is located on the inner side of the support ring and connected to the inner end of the guide rod. The pressing block is provided with an avoidance hole for the cable to pass through; The spring is sleeved on the guide rod, one end of the spring is in contact with the pressing block, and the other end of the spring is in contact with the supporting ring.

[0008] In a possible design, the guide rod includes a smooth rod and a screw rod, there are two guide holes, the smooth rod and the screw rod are respectively inserted into the corresponding guide holes, and a limit nut is also provided on the screw rod between the support ring and the stop end.

[0009] In a possible design, a damping sleeve is arranged in the avoidance hole, a plurality of damping belts are arranged on the inner wall of the damping sleeve, and free ends of the damping belts extend toward the central axis of the damping sleeve.

[0010] In a possible design, the damping sleeve is a conical sleeve having a small end and a large end that are oppositely arranged, wherein the small end is located at a side close to the reel, and the large end is located at a side away from the reel.

[0011] In a possible design, the damping sleeve has an opening and closing seam extending along the length direction of the damping sleeve.

[0012] In a possible design, a limiting ball is disposed on one side of the pressure block close to the reel, and the limiting ball includes two rows that are symmetrically disposed on opposite sides of the avoidance hole.

[0013] In a possible design, a guide tube is further provided on the chassis. The guide tube is provided obliquely downward. The guide tube includes a straight section and a transition section that are interconnected. The transition section is in a trumpet shape facing the reel.

[0014] In a possible design, a blowing assembly is also provided on the chassis. The blowing assembly is arranged around the guide tube and is used to blow gas toward the surface of the cable.

[0015] In one possible design, the traveling mechanism includes an engine, a differential, a left track wheel, a right track wheel and a traveling track, the output shaft of the engine is connected to the input shaft of the differential, the left output half shaft of the differential is connected to the left track wheel, and the right output half shaft of the differential is connected to the right track wheel.

[0016] The beneficial effects of this application are as follows: In the cable connection device of the present application, the reel is rotated to wind the cable on the reel, and at the same time, the cable moves along the axial direction of the reel driven by the support ring, thereby ensuring that the cable is evenly wound on the surface of the reel layer by layer. By setting a pressure block, the pressure block can exert a certain pressure on the cable at the position where the cable just contacts the reel, thereby preventing the cable from loosening from the reel due to bumps, thereby ensuring that the cable wound on the reel always maintains an equal speed, making the cable distribution and force on the surface of the reel more uniform, avoiding local stress concentration caused by cable deflection and accumulation, and improving the service life of the cable and the reel.

[0017] By setting up the walking tracks, the walking tracks are in direct contact with the ground. When the device is walking on ground facilities such as shore tracks, towing cable troughs, and pipe manhole covers, it has strong stability and good passability, and can reduce the phenomenon of inconsistent cable winding speed on the reel caused by bumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A front view of a cable connection device provided in an embodiment of the present application; Figure 2 A top view of a cable connection device provided in an embodiment of the present application; Figure 3 A schematic structural diagram of a pressing assembly of a cable connection device provided in an embodiment of the present application; Figure 4 A schematic structural diagram of the outer side surface of a pressing block of a cable connection device provided in an embodiment of the present application; Figure 5 A schematic diagram of the inner side structure of a pressing block of a cable connection device provided in an embodiment of the present application; Figure 6 A schematic diagram of the structure of the avoidance hole of the pressing block of the cable connection device provided in an embodiment of the present application; Figure 7 A schematic structural diagram of a damping sleeve of a cable connection device provided in an embodiment of the present application; Figure 8 A schematic diagram of the structure of a guide tube and a blowing assembly of a cable connection device provided in an embodiment of the present application; Fig. 9 A schematic diagram of the structure of the orifice plate of the cable connection device provided in an embodiment of the present application.

[0020] Reference numerals: 100, chassis; 200, walking mechanism; 300, reel; 400, cable; 500, pressing assembly; 510, support ring; 520, guide rod; 521, light rod; 522, screw; 523, stop end; 524, limiting nut; 530, pressing block; 531, avoidance hole; 540, spring; 550, damping sleeve; 560, damping belt; 570, limiting ball; 600, guide tube; 610, straight section; 620, transition section; 700, blowing assembly; 710, shell; 711, air cavity; 720, orifice plate; 721, air hole; 810, wire shaft; 820, guide shaft. DETAILED DESCRIPTION

[0021] The technical solution of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0022] Combine the following Figure 1-Figure 9 , describing the cable connection device provided in an embodiment of the present application.

[0023] Reference Figure 1 , Figure 2 As shown, the cable connection device provided in the embodiment of the present application includes a chassis 100, a traveling mechanism 200, a reel 300 and a pressing assembly 500. The traveling mechanism 200 is installed at the lower end of the chassis 100 and is used to drive the chassis 100 to move. Specifically, the traveling mechanism 200 includes an engine, a differential, a left track wheel, a right track wheel and a traveling track. The traveling track is respectively sleeved on the left track wheel and the right track wheel. The output shaft of the engine is connected to the input shaft of the differential, the left output half shaft of the differential is connected to the left track wheel, and the right output half shaft of the differential is connected to the right track wheel. The power generated by the engine is transmitted to the input shaft of the differential through the transmission shaft, and the input shaft drives the differential case to rotate. The planetary gears in the differential case start to move under the drive of the differential case. When the vehicle needs to travel in a straight line, the power is evenly distributed to the left and right half shaft gears, and the left and right half shaft gears then drive the track wheels on both sides to rotate at the same speed, so that the vehicle moves in a straight line. When the vehicle needs to turn, for example, to the left, more power is transmitted to the right side axle gear, so that the right track wheel rotates faster and the left track wheel rotates slower, thereby realizing the turning of the vehicle. By setting the walking track, the walking track is in direct contact with the ground. When the device travels on the shore track, the towing cable groove, the pipeline manhole cover and other ground facilities, it has strong stability and good passability, and can reduce the phenomenon of inconsistent winding speed of the cable on the drum 300 caused by bumps.

[0024] The reel 300 is mounted on the upper end of the chassis 100. The reel 300 reels the cable on the reel 300 or unwinds the cable 400 on the reel 300 by rotating around its own axis. Specifically, the opposite ends of the reel 300 are provided with baffles, and the diameter of the baffle is larger than the diameter of the reel 300. The reel 300 is sleeved on the rotating shaft, and the end of the rotating shaft is connected to the motor through a pulley. The motor drives the rotating shaft to rotate and drives the reel 300 to rotate synchronously, so that the cable is automatically wound on the surface of the reel 300.

[0025] Reference Figure 3 , Figure 4 As shown, the pressing assembly 500 is installed on the chassis 100 and is located around the reel 300. The pressing assembly 500 can assist the cable to be wound around the outer wall of the reel 300 by sliding against the surface of the cable. Specifically, the pressing assembly 500 includes a support ring 510, a guide rod 520, a pressing block 530 and a spring 540. The support ring 510 is located at the outer periphery of the reel 300, and the support ring 510 is coaxially arranged with the reel 300. The support ring 510 is respectively provided with a threaded hole and a light hole, and the axis of the threaded hole and the light hole is parallel to the axial direction of the support ring 510. The chassis 100 is also provided with a wire shaft 810 and a guide shaft 820 parallel to the axial direction of the reel 300. One end of the wire shaft 810 is rotatably installed on the side frame of the chassis 100 through a bearing, and the other end of the wire shaft 810 passes through the threaded hole of the support ring 510 and is connected to the motor. The guide shaft 820 passes through the light hole of the support ring 510, and the two ends of the guide shaft 820 are rotatably mounted on the side frame of the chassis 100 through bearings. The motor drives the wire shaft 810 to rotate, and the wire shaft 810 is threadedly matched with the threaded hole, so that the support ring 510 moves along the axial direction of the reel 300. A guide hole is provided on the support ring 510, and the axis of the guide hole is parallel to the radial direction of the support ring 510. The guide rod 520 is penetrated in the guide hole along the radial direction of the support ring 510 and can slide along the inner wall of the guide hole. The outer end of the guide rod 520 located at the support ring 510 has a stop end 523, and the inner end of the guide rod 520 located at the support ring 510 is connected to the pressure block 530. A spring 540 is sleeved on the guide rod 520, and one end of the spring 540 is in contact with the pressure block 530, and the other end is in contact with the support ring 510. The pressure block 530 is provided with an avoidance hole 531 for allowing the cable to pass through.

[0026] When the cable is reeled in, the cable passes from the outside of the pressing block 530 through the avoidance hole 531 to the inside of the pressing block 530, and is located between the pressing block 530 and the reel 300. Under the elastic force of the spring 540, the pressing block 530 exerts a slight pressure on the cable toward the reel 300, so that the cable exerts a certain pressure on the cable at the position where it just contacts the reel 300. At this time, the rotation of the reel 300 can keep the cable fed at a uniform speed. At the same time, the support ring 510 drives the cable axially to move at a uniform speed, so that the cable is evenly wound on the reel 300. After the first layer of cable is wound on the surface of the reel 300, the support ring 510 moves in the opposite direction to wind the second layer of cable. At this time, the spring 540 further contracts, and the cable will be located between the pressing block 530 and the first layer of cable. Similarly, the winding of the second layer of cable is completed, so that the cable is evenly wound layer by layer on the surface of the reel 300.

[0027] Reference Figure 4 As shown, the guide rod 520 includes a smooth rod 521 and a screw rod 522, and there are two guide holes. The smooth rod 521 and the screw rod 522 are respectively inserted into the corresponding guide holes. The screw rod 522 is located between the support ring 510 and the stop end 523 and is also sleeved with a limit nut 524. When releasing the cable, the limit nut 524 is rotated, the screw rod 522 moves outward along the axis of the guide hole, and the pressing block 530 connected to the screw rod 522 moves outward synchronously, and then the pressing block 530 is separated from the cable. At this time, the reel 300 rotates in the opposite direction to make the cable on the reel 300 easily released.

[0028] Reference Figure 6 , Figure 7 As shown, a damping sleeve 550 is provided in the avoidance hole 531, and a plurality of damping belts 560 are provided on the inner wall of the damping sleeve 550, and the free ends of the damping belts 560 extend toward the central axis of the damping sleeve 550. In this way, when the cable passes through the damping sleeve 550, the free ends of the damping belts 560 gather around the cable. On the one hand, the friction between the damping belt 560 and the cable can prevent the cable from coming out too quickly during bumps, and on the other hand, it can also brush off impurities such as sand on the surface of the cable. The damping sleeve 550 and the damping belt 560 are respectively made of rubber materials, which can generate greater friction and are relatively soft, and will not damage the cable. In some specific embodiments, the damping sleeve 550 is a conical sleeve with a small end and a large end that are relatively arranged, the small end is located on the side close to the reel 300, and the large end is located on the side away from the reel 300. The cable enters the damping sleeve 550 from the large-mouthed end and exits from the small-mouthed end, thus preventing the damping sleeve 550 from being dragged out by the cable.

[0029] In some specific embodiments, the pressure block 530 is located obliquely below the reel 300, which is conducive to the sand brushed off by the large mouth end to flow downward to the ground.

[0030] In some of the specific embodiments, the damping sleeve 550 has an opening and closing seam extending along its length direction. In this way, when the cable is collected, the cable is allowed to enter the sleeve from the opening and closing seam of the damping sleeve 550, and when the cable is released, the cable is allowed to be taken out from the opening and closing seam of the damping sleeve 550.

[0031] Reference Figure 5 As shown, in some specific embodiments, a limiting ball 570 is provided on one side of the pressure block 530 close to the reel 300, and the limiting ball 570 includes two rows, which are symmetrically arranged on opposite sides of the avoidance hole 531. Specifically, the pressure block 530 includes a bottom plate and a cover plate, a spherical groove is provided on the bottom plate, and the limiting ball 570 is arranged in the spherical groove, and a round hole is provided on the cover plate, and the cover plate is fixed to the bottom plate by screws, and part of the limiting ball 570 leaks out of the round hole, so that free rolling can be achieved. In this way, the cable can be limited between the two rows of limiting balls 570, and the limiting balls 570 can prevent the cable from slipping out from the inner side of the pressure block 530 during the winding process.

[0032] Reference Figure 2 , Figure 8 As shown, in some specific embodiments, a guide tube 600 is further provided at the rear end of the chassis 100. The guide tube 600 is installed on the chassis 100 obliquely downward. The guide tube 600 includes a straight section 610 and a transition section 620 that are mutually connected. The straight section 610 is located at the rear end of the transition section 620. The transition section 620 is in a trumpet shape facing the reel 300. The cable passes through the straight section 610 and the transition section 620 in sequence. In this way, when the cable is retracted and released, the straight section 610 can prevent the cable from swinging, so that the cable is laid along the towing cable groove. The cable driven by the support ring 510 to move axially swings left and right in the trumpet section. In some embodiments, a buffer layer, such as an air bag, is provided at the inner wall of the trumpet section to protect the cable during the swinging of the cable.

[0033] Reference Figure 8 , Fig. 9As shown, in some specific embodiments, a blowing assembly 700 is also provided on the chassis 100, and the blowing assembly 700 is provided around the guide tube 600, and is used to blow gas to the surface of the cable. Specifically, the blowing assembly 700 includes a shell 710 and a perforated plate 720, the shell 710 is cylindrical, and is sleeved on the outer wall of the straight section 610 of the guide tube, and a ring-shaped air cavity 711 is formed in the shell 710, and the perforated plate 720 is annular, and the perforated plate 720 is installed at the rear end of the shell 710, and a plurality of air holes 721 connected to the air cavity 711 are opened on the perforated plate 720 along the circumferential direction, and the air cavity 711 is connected to the blower. When collecting the cable, the blower blows air into the air cavity 711, and the gas is discharged through the air holes 721. The gas can wash away the impurities on the surface of the cable, and prevent the impurities on the surface of the cable from rubbing against the guide tube 600, thereby reducing the wear of the outer sheath of the cable during the cable collection process. When laying the cable, the gas discharged through the air hole 721 can wash away the impurities in the cable trough, preventing the impurities on the cable surface from rubbing against the cable trough, thereby reducing the wear of the cable outer sheath during the cable laying process.

[0034] In some specific embodiments, the number of air holes 721 in the upper part of the orifice plate 720 is greater than the number of air holes 721 in the lower part of the orifice plate 720. When the cable is collected, since the number of air holes 721 in the upper part of the orifice plate 720 is greater than the number of air holes 721 in the lower part of the orifice plate 720, the air pressure in the upper part of the cable is greater than the air pressure in the lower part, which is conducive to the cable entering the cable trough smoothly. When the cable is released, the orifice plate 720 is turned upside down by 180°. At this time, since the number of air holes 721 in the upper part of the orifice plate 720 is less than the number of air holes 721 in the lower part of the orifice plate 720, the air pressure in the upper part of the cable is less than the air pressure in the lower part, which is conducive to the cable being blown out of the cable trough smoothly.

[0035] In the description of the present application, it should 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 a limitation on the present application.

[0036] 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 this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In this application, 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 connection; 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 this application can be understood according to specific circumstances.

[0038] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", 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 application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described 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.

[0039] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A cable connection device, characterized in that: include: Chassis; A walking mechanism, installed on the chassis, for driving the chassis to move; A reel is mounted on the chassis and rotates around its own axis to reel the cable onto the reel or unreel the cable on the reel; The pressing component is arranged on the chassis and can assist the cable to be wound around the outer wall of the reel by slidingly contacting the surface of the cable.

2. The cable connection device according to claim 1, characterized in that: The pressing component comprises: A support ring is located on the outer periphery of the reel, is coaxial with the reel, and can move along the axial direction of the reel. A guide hole is provided on the support ring; A guide rod is provided in the guide hole along the radial direction of the support ring and can slide along the inner wall of the guide hole. The guide rod is located at the outer end of the support ring and has a stop end. A pressing block is located on the inner side of the support ring and connected to the inner end of the guide rod. The pressing block is provided with an avoidance hole for the cable to pass through; The spring is sleeved on the guide rod, one end of the spring is in contact with the pressing block, and the other end of the spring is in contact with the supporting ring.

3. The cable connection device according to claim 2, characterized in that: The guide rod comprises a smooth rod and a screw rod, there are two guide holes, the smooth rod and the screw rod are respectively inserted into the corresponding guide holes, and a limit nut is also sleeved on the screw rod at a position between the support ring and the stop end.

4. The cable connection device according to claim 3, characterized in that: A damping sleeve is arranged in the avoidance hole, a plurality of damping belts are arranged on the inner wall of the damping sleeve, and free ends of the damping belts extend toward the central axis of the damping sleeve.

5. The cable connection device according to claim 4, characterized in that: The damping sleeve is a conical sleeve, and has a small end and a large end which are arranged opposite to each other. The small end is located at a side close to the reel, and the large end is located at a side away from the reel.

6. The cable connection device according to claim 5, characterized in that: The damping sleeve has an opening and closing seam extending along the length direction of the damping sleeve.

7. The cable connection device according to any one of claims 2 to 6, characterized in that: A limiting ball is arranged on one side of the pressing block close to the reel, and the limiting ball comprises two rows, which are symmetrically arranged on two opposite sides of the avoidance hole.

8. The cable connection device according to any one of claims 2 to 6, characterized in that: A guide tube is also provided on the chassis. The guide tube is provided obliquely downward. The guide tube includes a straight section and a transition section which are interconnected. The transition section is in a trumpet shape facing the reel.

9. The cable connection device according to claim 8, characterized in that: The chassis is also provided with an air blowing assembly, which is arranged around the guide tube and is used for blowing gas toward the surface of the cable.

10. The cable connection device according to any one of claims 1 to 6, characterized in that: The walking mechanism comprises an engine, a differential, a left track wheel, a right track wheel and a walking track, the output shaft of the engine is connected to the input shaft of the differential, the left output half shaft of the differential is connected to the left track wheel, and the right output half shaft of the differential is connected to the right track wheel.

Images