Tensioning device for power cable installation

Abstract

A tensioning device for power cable installation comprises a horizontally-arranged lower supporting table, a walking mechanism is arranged at the bottom end of the lower supporting table, an upper supporting table is arranged above the lower supporting table, a supporting column is arranged between the upper supporting table and the lower supporting table, a pay-off mechanism is fixed to the top end of the upper supporting table, and a cable conveying mechanism is arranged at the top end of the upper supporting table. A wire guide wheel support is arranged at the top end of the upper supporting table, an upper wire guide wheel is assembled on the wire guide wheel support, a wire guide wheel support is arranged at the top end of the supporting plate, a lower wire guide wheel is rotatably assembled on the wire guide wheel support, a lifting mechanism is arranged between the upper supporting table and the lower supporting table, and the supporting plate is assembled between the upper supporting table and the lower supporting table through the lifting mechanism. A strip-shaped through hole for a cable to go in and out is formed in the supporting plate, and the cable on the pay-off mechanism sequentially winds around the lower wire guide wheel and the upper wire guide wheel and is led out of the wire conveying mechanism. The device is simple in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to power cable installation technical field especially relates to a tensioner of power cable installation. BACKGROUND

[0002] Power cable is the cable for transmission and distribution of electric energy, power cable is often used in urban underground power network, power station outgoing line, industrial and mining enterprise internal power supply and cross river and sea underwater power transmission line, power cable needs to pull cable to make it reach certain tightness when construction, when outdoor construction, especially when laying cable between two line towers, need to fix one end of cable on vehicle, then pull tight cable through vehicle dragging to adjust tightness of cable, when some special occasions such as uneven ground, vehicle dragging cable is not suitable, need to adjust tightness between two line towers, it is very inconvenient, therefore, in prior art, it is inconvenient to adjust tightness of power cable, not only let manpower and material resources, and cable construction efficiency is low. SUMMARY

[0003] The utility model discloses a power cable installation's tensioner provides for solving the technical problem that the power cable's tension degree is not changed when installing the existing power cable, and the tensioner of power cable installation includes the horizontal setting of lower support platform, and the lower support platform plays the supporting effect, and the bottom of lower support platform is equipped with the travelling mechanism of facilitating the removal of lower support platform, and the travelling mechanism includes four fixed in the bottom of lower support platform's support leg, and the support leg is rotatablely equipped with the travelling wheel on, and the setting of travelling wheel facilitates the removal of lower support platform. The upper side of lower support platform is equipped with the upper support platform of setting in parallel with lower support platform, and the upper support platform plays the effect of supporting fixed, and is equipped with a plurality of support columns between upper support platform and lower support platform, and the support column plays the effect of supporting fixed. The top left side of upper support platform is fixed with the vertical setting of pay-off mechanism, and the pay-off mechanism includes the vertical setting of reel support, and the bottom of reel support is fixed in the top of upper support platform, and the upper end rotatablely equipped with cable reel of reel support, and the upper end outside of reel support is fixed with reel motor, and the power output shaft of reel motor is transmission connection with cable reel, and starts reel motor, and reel motor drives cable reel to rotate and releases the cable on cable reel. The top right side of upper support platform is equipped with the wire feeding mechanism, and the wire feeding mechanism includes the support frame of fixing in the top of upper support platform, and the support frame is rotatablely equipped with two parallel and interval setting's driving roller and driven roller on, and the cable is led out from driving roller and driven roller, and the outside of support frame is fixed with wire feeding motor, and the power output shaft of wire feeding motor is transmission connection with driving roller, and starts wire feeding motor, and wire feeding motor drives driving roller to rotate, and drags cable to move right under the cooperation of driven roller. The top of upper support platform is equipped with the even interval setting's wire guide wheel support from left to right, and the wire guide wheel support is rotatablely equipped with upper wire guide wheel on, and the top of support plate is equipped with a plurality of even interval setting's wire guide wheel support from left to right, and the wire guide wheel support is rotatablely equipped with lower wire guide wheel on. The upper support platform and lower support platform are equipped with lifting mechanism, and the lifting mechanism includes two vertical and symmetric setting's guide rod, and the bottom of guide rod is fixed in the top of lower support platform, and the top of guide rod is fixed in the bottom of upper support platform, and support plate is slidably connected on guide rod, and still include the vertical setting of lead screw, and the top of lead screw is rotatablely equipped in the bottom of upper support platform through bearing, and the lower end of lead screw is rotatablely equipped on lower support platform through bearing, and the lower end of lead screw extends out lower support platform downward, and lead screw is screw connection on support plate, and the bottom of lower support platform is fixed with the vertical setting of hoisting motor, and the power output shaft of hoisting motor is transmission connection with the lower end of lead screw, and starts hoisting motor, and hoisting motor drives lead screw to rotate, and lead screw pushes support plate to move freely up and down in vertical direction, and can adjust the position of support plate in vertical direction, thereby adjusted the distance between upper wire guide wheel and lower wire guide wheel, and can adjust the tension degree of cable. Support plate is assembled between upper support platform and lower support platform through lifting mechanism, and the strip-shaped through-hole for cable in and out is set up on support plate, and the cable on pay-off mechanism passes lower wire guide wheel and upper wire guide wheel in proper order and is led out from wire feeding mechanism.

[0004] Preferably, the fixing mechanism comprises four vertically arranged screw rods, each of which is threadedly connected at a corner of the lower support table and extends downward from the lower support table, and the top end of each screw rod is fixed with a hand wheel for rotating the screw rod, clockwise rotation of the hand wheel causes the screw rod to move downward, and the lower end of the screw rod is inserted into the ground to achieve the fixing effect and facilitate the stabilization of the lower support table.

[0005] Preferably, the lower end of the screw rod is conical.

[0006] The above scheme has the following advantages:

[0007] The setting of the lifting mechanism adjusts the distance between the upper wire guide wheel and the lower wire guide wheel by adjusting the position of the support plate in the vertical direction, thereby adjusting the tension of the cable; the setting of the fixing mechanism facilitates the stabilization of the lower support table by clockwise rotation of the hand wheel, downward movement of the screw rod, and insertion of the lower end of the screw rod into the ground; the setting of the pay-off mechanism releases the cable on the cable drum by rotating the cable drum driven by the drum motor, thereby improving the efficiency; and the setting of the wire conveying mechanism assists the pay-off mechanism in paying off the cable. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 The structure of the utility model is shown in the schematic diagram.

[0009] The drawings show that: 1, the lower support table; 2, the upper support table; 3, the support plate; 4, the pay-off mechanism; 5, the wire conveying mechanism; 6, the lifting mechanism; 7, the walking mechanism; 8, the fixing mechanism; 9, the cable; 11, the support column; 31, the guide rod; 32, the upper wire guide wheel; 33, the lower wire guide wheel; 41, the drum support; 42, the cable drum; 43, the drum motor; 51, the support frame; 52, the driving roller; 53, the driven roller; 54, the wire conveying motor; 61, the lead screw; 62, the lifting motor; 81, the screw rod; 82, the hand wheel. DETAILED DESCRIPTION

[0010] As Figure 1As shown, a power cable installation tensioning device, including horizontally arranged lower support platform 1, lower support platform 1 plays a supporting role, the bottom end of lower support platform 1 is provided with walking mechanism 7 for facilitating the movement of lower support platform 1, walking mechanism 7 includes four legs fixed on the bottom end of lower support platform 1, walking wheels are rotatably assembled on the legs, the arrangement of walking wheels facilitates the movement of lower support platform 1. The upper side of lower support platform 1 is provided with upper support platform 2 arranged in parallel with lower support platform 1, upper support platform 2 plays a supporting and fixing role, and a plurality of support columns 11 are arranged between upper support platform 2 and lower support platform 1, which play a supporting and fixing role. The top left side of upper support platform 2 is fixed with vertically arranged pay-off mechanism 4, pay-off mechanism 4 includes vertically arranged reel bracket 41, the bottom end of reel bracket 41 is fixed on the top end of upper support platform 2, the upper end of reel bracket 41 is rotatably assembled with cable reel 42, and reel motor 43 is fixed on the outer side of the upper end of reel bracket 41, the power output shaft of reel motor 43 is in transmission connection with cable reel 42, reel motor 43 is started, reel motor 43 drives cable reel 42 to rotate and release cable 9 on cable reel 42. The top right side of upper support platform 2 is provided with wire feeding mechanism 5, wire feeding mechanism 5 includes support frame 51 fixed on the top end of upper support platform 2, two parallel and spaced driving rollers 52 and driven rollers 53 are rotatably assembled on support frame 51, cable 9 is led out from between driving rollers 52 and driven rollers 53, wire feeding motor 54 is fixed on the outer side of support frame 51, the power output shaft of wire feeding motor 54 is in transmission connection with driving roller 52, wire feeding motor 54 is started, wire feeding motor 54 drives driving roller 53 to rotate, and drives cable 9 to move rightwards under the cooperation of driven roller 53. The top end of upper support platform 2 is provided with uniformly spaced wire guide wheel supports from left to right, wire guide wheels 32 are rotatably assembled on the wire guide wheel supports, and the top end of support plate 3 is provided with a plurality of uniformly spaced wire guide wheel supports from left to right, lower wire guide wheels 33 are rotatably assembled on the wire guide wheel supports. A lifting mechanism 6 is arranged between upper support platform 2 and lower support platform 1, lifting mechanism 6 includes two vertically and symmetrically arranged guide rods 31, the bottom end of guide rod 31 is fixed on the top end of lower support platform 1, the top end of guide rod 31 is fixed on the bottom end of upper support platform 2, and support plate 3 is slidably connected on guide rod 31; further comprising a vertically arranged lead screw 61, the top end of lead screw 61 is rotatably assembled on the bottom end of upper support platform 2 through a bearing, the lower end of lead screw 61 is rotatably assembled on lower support platform 1 through a bearing, and the lower end of lead screw 61 extends out of lower support platform 1 downwardly, lead screw 61 is threadedly connected on support plate 3, the bottom end of lower support platform 1 is fixed with vertically arranged lifting motor 62, the power output shaft of lifting motor 62 is in transmission connection with the lower end of lead screw 61, lifting motor 62 is started, lifting motor 62 drives lead screw 61 to rotate, lead screw 61 pushes support plate 3 to move freely up and down in the vertical direction, the position of support plate 3 in the vertical direction can be adjusted, thereby adjusting the distance between upper wire guide wheel 32 and lower wire guide wheel 33, and the tension of cable 9 can be adjusted.The support plate 3 is assembled between the upper support table 2 and the lower support table 1 through the lifting mechanism 6, strip-shaped through holes for the cable 9 to enter and exit are formed on the support plate 3, the cable 9 on the pay-off mechanism 4 is wound around the lower wire guide wheel 33 and the upper wire guide wheel 32 in sequence, and is led out from the wire conveying mechanism 5.

[0011] Preferably, the fixing mechanism 8 comprises four vertically arranged screw rods 81, each screw rod 81 is threadedly connected at a corner of the lower support table 2, and the screw rod 81 extends downwardly out of the lower support table 1, and the top end of the screw rod 81 is fixed with a hand wheel 82 facilitating rotation of the screw rod 81, clockwise rotation of the hand wheel 82 moves the screw rod 81 downwardly, the lower end of the screw rod 81 is inserted into the ground, and the fixing effect can be achieved to facilitate stabilization of the lower support table 1.

[0012] Preferably, the lower end of the screw rod 81 is conical.

[0013] Use process:

[0014] In use, first, the device is moved to a specified position, then the hand wheel 82 is rotated clockwise, the hand wheel 82 drives the screw rod 81 to rotate, the lower end of the screw rod 81 is inserted into the ground, the lower support table 1 is fixed with the ground, then the drum motor 43 and the wire conveying motor 54 are started at the same time, the drum motor 43 drives the cable drum 42 to rotate and release the cable 9 on the cable drum 42, the wire conveying motor 54 drives the driving roller 52 to rotate, under the action of friction, the driving roller 52 and the driven roller 53 extrude and pull the cable to move rightward, the laying of the cable 9 is realized, after the cable 9 is laid, the tension of the cable 9 needs to be adjusted, the lifting motor 6 is started, the lifting motor 6 drives the lead screw 61 to rotate, the lead screw 61 pushes the support plate 3 to move downwardly, so as to pull the cable 9 to be tight, when the tension of the cable 9 needs to be adjusted, the lead screw 61 is reversely rotated, the lead screw 61 pushes the lower support table 1 to move upwardly.

[0015] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0016] The above examples are illustrative of the present application and are not limiting of the present application, any simple modification of the present application is within the protection scope of the present application.

Claims

1. A tensioning device for power cable installation, comprising a horizontally arranged lower support platform, a traveling mechanism for moving the lower support platform at its bottom end, an upper support platform arranged parallel to the lower support platform above the lower support platform, and a plurality of support columns between the upper support platform and the lower support platform, characterized in that: A vertically arranged wire feeding mechanism is fixed on the top left of the upper support platform, and a wire feeding mechanism is provided on the top right of the upper support platform. From left to right, the top of the upper support platform has evenly spaced guide wheel brackets, on which upper guide wheels are rotatably mounted. From left to right, the top of the support plate has several evenly spaced guide wheel brackets, on which lower guide wheels are rotatably mounted. A lifting mechanism is provided between the upper and lower support platforms. The support plate is mounted between the upper and lower support platforms via the lifting mechanism. A strip-shaped through-hole is provided on the support plate for cable entry and exit. The cable on the wire feeding mechanism passes sequentially around the lower and upper guide wheels and is led out from the wire feeding mechanism.

2. The tensioning device for power cable installation according to claim 1, characterized in that: The lifting mechanism includes two vertically and symmetrically arranged guide rods. The bottom end of the guide rod is fixed to the top end of the lower support platform, and the top end of the guide rod is fixed to the bottom end of the upper support platform. A support plate is slidably connected to the guide rod. The mechanism also includes a vertically arranged lead screw. The top end of the lead screw is rotatably mounted to the bottom end of the upper support platform via a bearing, and the lower end of the lead screw is rotatably mounted to the lower support platform via a bearing. The lower end of the lead screw extends downward out of the lower support platform and is threadedly connected to the support plate. A vertically arranged lifting motor is fixed to the bottom end of the lower support platform, and the power output shaft of the lifting motor is drively connected to the lower end of the lead screw.

3. The tensioning device for power cable installation according to claim 1, characterized in that: The cable feeding mechanism includes a vertically arranged drum support. The bottom end of the drum support is fixed to the top of the upper support platform. The upper end of the drum support is rotatably equipped with a cable drum. A drum motor is fixed to the outer side of the upper end of the drum support. The power output shaft of the drum motor is connected to the cable drum drive.

4. The tensioning device for power cable installation according to claim 1, characterized in that... The cable conveying mechanism includes a support frame fixed to the top of the upper support platform. Two parallel and spaced-apart drive rollers and driven rollers are rotatably mounted on the support frame. The cable is led out from between the drive rollers and driven rollers. A cable conveying motor is fixed to the outside of the support frame. The power output shaft of the cable conveying motor is connected to the drive rollers via a transmission.

5. A tensioning device for power cable installation according to claim 1, characterized in that: The fixing mechanism includes four vertically arranged screws, each screw being threaded to one of the four corners of the lower support platform, and each screw extending downwards out of the lower support platform. The top of each screw is fixed with a handwheel for easy rotation.

6. A tensioning device for power cable installation according to claim 5, characterized in that: The lower end of the screw is conical.

7. A tensioning device for power cable installation according to claim 1, characterized in that: The walking mechanism includes four legs fixed to the bottom of the lower support platform, and the legs are rotatably equipped with walking wheels.

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