Tensioning device for power cable installation

Abstract

According to the tensioning device for power cable installation, a third connecting frame is arranged above a bottom plate, the third connecting frame is rotationally connected with an upper roller through a pin shaft, and according to the tensioning device for power cable installation, a rack moves to drive a sliding block to slide along the surface of a protruding part of the inner wall of a second shell; the sliding block moves to drive the vertical rod to slide along the through hole machined in the first shell, so that manual carrying by an operator is not needed, the operator does not need to consume more physical power, and therefore the manual labor force is saved; an output shaft of a second motor rotates to drive a second gear to rotate so as to drive a third gear to rotate, and the third gear rotates to drive a threaded rod to rotate so as to drive a movable plate to slide along the surface of a fixed column, so that an operator does not need to manually adjust, and the tightness of a cable can be adjusted within a short time; and the speed of adjusting the tightness of the cable is increased, so that the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a tensioning device for installing a power cable. Background Art

[0002] Power cables are cables used to transmit and distribute electrical energy. Power cables are often used in urban underground power grids, power station lead-out lines, internal power supplies for industrial and mining enterprises, and underwater transmission lines across rivers and seas. During the cable installation process, the cable lines are long and difficult to tighten. After the cables are installed and fixed, the cables often become loose, posing a safety hazard, so the cables need to be tensioned.

[0003] For example, the power cable installation tensioning device with the authorization announcement number "CN207303840U" has a simple structure and precise control. While achieving cable tensioning, it can effectively avoid damage to the cable, and the tensioned cable is not easy to loosen again, which meets people's demand for cable tensioning. However, when moving the power cable installation tensioning device, the operator needs to manually move the rack. Due to the gravity of the rack and other components, the operator needs to spend more physical strength to move the rack to the specified position, thereby increasing the manual labor. At the same time, the power cable installation tensioning device adjusts the position of the tensioning wheel by the operator manually pushing the slider to adjust the tension of the cable. Since it takes a long time for the operator to manually adjust, the speed of adjusting the cable tension is slow, thereby reducing work efficiency. Summary of the invention

[0004] The utility model aims to solve the problems existing in the above-mentioned prior art and provides a tensioning device for power cable installation, which does not require an operator to manually move a frame, thereby saving manual labor and can quickly adjust the position of the tensioning wheel to improve work efficiency.

[0005] The utility model adopts a technical solution to solve its technical problems: this tensioning device for power cable installation includes a base plate, a plurality of auxiliary moving mechanisms are arranged inside the base plate, a tensioning adjustment mechanism is arranged on the surface of the base plate, a first connecting frame is arranged inside the base plate, the first connecting frame is rotatably connected to a universal wheel via a pin shaft, a second connecting frame is fixedly connected to the surface of the base plate, the second connecting frame is rotatably connected to a lower roller via a pin shaft, a third connecting frame is arranged above the base plate, and the third connecting frame is rotatably connected to an upper roller via a pin shaft.

[0006] For further improvement, a plurality of threaded holes are processed on the bottom plate, and the threaded holes processed on the bottom plate are connected with the bolts through threads.

[0007] To be further improved, the auxiliary moving mechanism includes a first shell, the surface of the first shell is fixedly connected to the inner wall of the base plate, the inner wall of the first shell is fixedly connected to a first motor through a bracket, the end of the output shaft of the first motor is fixedly connected to a first gear, the first gear is meshed with a rack, the slide groove processed on the protruding part of the rack is slidably connected to the surface of the protruding part of the inner wall of the first shell, the end of the rack is fixedly connected to the surface of the slider, the slide groove processed on the slider is slidably connected to the surface of the protruding part of the inner wall of the first shell, the protruding part of the slider is in contact with the surface of the vertical rod, and the vertical rod is slidably connected to the first shell through the bracket and the through hole.

[0008] For further improvement, a spring is sleeved on the surface of the vertical rod, one end of the spring is fixedly connected to the surface of the protruding part of the vertical rod, the other end of the spring is fixedly connected to the inner wall of the first shell through a bracket, and the end of the vertical rod is fixedly connected to the surface of the first connecting frame.

[0009] To further improve, the tensioning adjustment mechanism includes a second shell, the surface of the second shell is fixedly connected to the surface of the bottom plate, the inner wall of the second shell is fixedly connected to a second motor through a bracket, the end of the output shaft of the second motor is fixedly connected to a second gear, the second gear is meshed with a third gear, the third gear is rotatably connected to the inner wall of the second shell through a pin shaft, the surface of the third gear is fixedly connected to a threaded rod, the threaded rod is rotatably connected to the second shell through a bearing, the threaded rod is connected to the movable plate through threads, the slide groove processed on the movable plate is slidably connected to the surface of the fixed column, both ends of the fixed column are fixedly connected to the inner wall of the second shell, and the movable plate is slidably connected to the slide groove processed on the second shell.

[0010] For further improvement, the end of the movable plate is fixedly connected to the surface of the third connecting frame.

[0011] The beneficial effects of the utility model are as follows: in the utility model, through the cooperation of the universal wheel and the auxiliary moving mechanism, the rotation of the first motor output shaft drives the first gear to rotate, thereby driving the protruding portion of the rack to slide along the surface of the protruding portion of the inner wall of the second shell, the movement of the rack drives the slider to slide along the surface of the protruding portion of the inner wall of the second shell, and the movement of the slider drives the vertical rod to slide along the through hole processed on the first shell, so as to achieve the effect that the operator does not need to manually move the machine, and the operator does not need to consume much physical strength, thereby saving manual labor.

[0012] Through the cooperation of the upper roller and the tensioning adjustment mechanism, the rotation of the second motor output shaft drives the second gear to rotate, thereby driving the third gear to rotate. The rotation of the third gear drives the threaded rod to rotate, thereby driving the movable plate to slide along the surface of the fixed column. At the same time, the movable plate slides along the slide groove processed on the second outer shell, so that the operator does not need to make manual adjustments. It only takes a short time to adjust the tightness of the cable, which makes the speed of adjusting the tightness of the cable faster, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 A front cross-sectional view of

[0015] Figure 3 for Figure 2 A right side sectional view of the auxiliary moving mechanism;

[0016] Figure 4 of Figure 1 a right side cross-sectional view of the middle tension adjustment mechanism;

[0017] Figure 5 for Figure 1 Right side sectional view;

[0018] Figure 6 for Figure 1 Top sectional view of the tension adjustment mechanism.

[0019] Explanation of the reference numerals: 1. bottom plate, 2. lower roller, 3. tensioning adjustment mechanism, 301. second housing, 302. second motor, 303. second gear, 304. third gear, 305. threaded rod, 306. movable plate, 307. fixed column, 4. universal wheel, 5. first connecting frame, 6. auxiliary moving mechanism, 601. first housing, 602. first motor, 603. first gear, 604. rack, 605. slider, 606. vertical rod, 7. upper roller, 8. third connecting frame, 9. second connecting frame, 10. bolt, 11. spring. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Refer to the attached Figure 1-6In this embodiment, a tensioning device for power cable installation includes a base plate 1, a plurality of auxiliary moving mechanisms 6 are arranged inside the base plate 1, a tensioning adjustment mechanism 3 is arranged on the surface of the base plate 1, a first connecting frame 5 is arranged inside the base plate 1, the first connecting frame 5 is rotatably connected to a universal wheel 4 through a pin shaft, a second connecting frame 9 is fixedly connected to the surface of the base plate 1, the second connecting frame 9 is rotatably connected to a lower roller 2 through a pin shaft, a third connecting frame 8 is arranged above the base plate 1, the third connecting frame 8 is rotatably connected to an upper roller 7 through a pin shaft, a plurality of threaded holes are processed on the base plate 1, and the threaded holes processed on the base plate 1 The hole is connected to the bolt 10 by a threaded connection, and a spring 11 is sleeved on the surface of the vertical rod 606. The elastic coefficient of the spring 11 is selected according to actual needs to meet the working needs. One end of the spring 11 is fixedly connected to the surface of the protruding part of the vertical rod 606, and the other end of the spring 11 is fixedly connected to the inner wall of the first shell 601 through a bracket. The end of the vertical rod 606 is fixedly connected to the surface of the first connecting frame 5. The movement of the vertical rod 606 drives the first connecting frame 5 to move. The end of the movable plate 306 is fixedly connected to the surface of the third connecting frame 8. The movement of the movable plate 306 drives the third connecting frame 8 to move.

[0022] Refer to the attached Figure 3 The auxiliary moving mechanism 6 includes a first shell 601, the surface of the first shell 601 is fixedly connected to the inner wall of the bottom plate 1, the inner wall of the first shell 601 is fixedly connected to the first motor 602 through a bracket, the models of the first motor 602 and the second motor 302 are selected according to actual needs to meet the work needs, the end of the output shaft of the first motor 602 is fixedly connected to the first gear 603, the first gear 603 is meshed with the rack 604, the slide groove processed on the protruding part of the rack 604 is slidably connected to the surface of the protruding part of the inner wall of the first shell 601, the end of the rack 604 is fixedly connected to the surface of the slider 605, and the slider 605 is The processed slide groove is slidably connected to the surface of the protruding portion of the inner wall of the first shell 601, the protruding portion of the slider 605 is in contact with the surface of the vertical rod 606, and the vertical rod 606 is slidably connected to the first shell 601 through the bracket and the through hole. The power of the first motor 602 is turned on, and the output shaft of the first motor 602 rotates to drive the first gear 603 to rotate, thereby driving the protruding portion of the rack 604 to slide along the surface of the protruding portion of the inner wall of the second shell 601. The movement of the rack 604 drives the slider 605 to slide along the surface of the protruding portion of the inner wall of the second shell 601, and the movement of the slider 605 drives the vertical rod 606 to slide along the through hole processed on the first shell 601.

[0023] Refer to the attached Figure 4 and attached Figure 6The tensioning adjustment mechanism 3 includes a second housing 301, the surface of the second housing 301 is fixedly connected to the surface of the bottom plate 1, the inner wall of the second housing 301 is fixedly connected to the second motor 302 through a bracket, the end of the output shaft of the second motor 302 is fixedly connected to the second gear 303, the second gear 303 is meshed with the third gear 304, the third gear 304 is rotatably connected to the inner wall of the second housing 301 through a pin, the surface of the third gear 304 is fixedly connected to a threaded rod 305, the threaded rod 305 is rotatably connected to the second housing 301 through a bearing, and the threaded rod 305 is connected to the movable plate 306 through a screw. The sliding groove processed on the movable plate 306 is slidably connected with the surface of the fixed column 307. Both ends of the fixed column 307 are fixedly connected to the inner wall of the second shell 301. The movable plate 306 is slidably connected with the sliding groove processed on the second shell 301. The power of the second motor 302 is turned on, and the output shaft of the second motor 302 rotates to drive the second gear 303 to rotate, thereby driving the third gear 304 to rotate. The rotation of the third gear 304 drives the threaded rod 305 to rotate, thereby driving the movable plate 306 to slide along the surface of the fixed column 307. At the same time, the movable plate 306 slides along the sliding groove processed on the second shell 301.

[0024] Working principle: When installing power cables using a tensioning device:

[0025] Preparation process: First, turn the bolt 10 counterclockwise, and then start the power supplies of multiple first motors 602 at the same time. The output shaft of the first motor 602 rotates to drive the first gear 603 to rotate, thereby driving the protruding part of the rack 604 to slide along the surface of the protruding part of the inner wall of the second shell 601. The movement of the rack 604 drives the slider 605 to slide along the surface of the protruding part of the inner wall of the second shell 601. The movement of the slider 605 drives the vertical rod 606 to slide downward along the through hole processed on the first shell 601. The output shaft of the first motor 602 on the left side rotates counterclockwise. When the vertex of the protruding part of the slider 605 fits with the surface of the vertical rod 606, the vertical rod 606 moves downward to the maximum distance, and the power supply of the first motor 602 on the left side is turned off. Similarly, the output shaft of the first motor 602 on the right side rotates clockwise to make the vertical rod 606 on the right side move. Move down to the maximum distance, turn off the power of the first motor 602 on the right, and the vertical rod 606 moves downward to drive the first connecting frame 5 and the universal wheel 4 to move downward to the maximum distance, and the universal wheel 4 extends out of the base plate 1, and then the operator rotates the bolt 10 clockwise to make the surface of the bolt 10 press against the surface of the vertical rod 606, and then the operator manually pushes the base plate 1 to move to the vicinity where the power cable needs to be installed, so as to make it more convenient for the operator to move without consuming more physical strength. When the base plate 1 moves to the appropriate position, the bolt 10 is rotated clockwise again to make the bolt 10 away from the vertical rod 606, and then start multiple first motors 602 to make the output shaft of the first motor 602 on the left rotate clockwise, and the first motor 602 on the right rotates counterclockwise, so that the universal wheel 4 is reset, making it more stable during operation.

[0026] Wire and cable adjustment process: the power cable is passed over the left lower roller 2, then passed under the upper roller 7, and finally passed over the right lower roller 2. When the tension of the power cable needs to be adjusted, the power supply of the second motor 302 is started, and the output shaft of the second motor 302 rotates clockwise to drive the second gear 303 to rotate, thereby driving the third gear 304 to rotate. The rotation of the third gear 304 drives the threaded rod 305 to rotate, thereby driving the movable plate 306 to slide along the surface of the fixed column 307. At the same time, the movable plate 306 slides downward along the slide groove processed on the second shell 301. The movable plate 306 moves downward to drive the third connecting frame 8 to move downward, thereby driving the upper roller 7 to move downward. The upper roller 7 moves downward to drive the power cable to move downward. When the power cable is tight, turn off the power supply of the second power supply 302. When the power cable needs to be loosened, start the power supply of the second motor 302, make the second motor 302 rotate counterclockwise, and move the upper roller 7 upward, so that the power cable gradually becomes loose, so as to achieve the rapid adjustment of the position of the upper roller 7. The tension of the power cable can be adjusted in a short time.

[0027] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A tensioning device for installing a power cable, comprising a base plate (1), characterized in that: A plurality of auxiliary moving mechanisms (6) are provided inside the base plate (1), a tensioning adjustment mechanism (3) is provided on the surface of the base plate (1), a first connecting frame (5) is provided inside the base plate (1), the first connecting frame (5) is rotatably connected to a universal wheel (4) via a pin shaft, a second connecting frame (9) is fixedly connected to the surface of the base plate (1), the second connecting frame (9) is rotatably connected to a lower roller (2) via a pin shaft, and a third connecting frame (8) is provided above the base plate (1), the third connecting frame (8) is rotatably connected to an upper roller (7) via a pin shaft.

2. A tensioning device for power cable installation according to claim 1, characterized in that: A plurality of threaded holes are machined on the base plate (1), and the threaded holes machined on the base plate (1) are connected to the bolts (10) through threads.

3. A tensioning device for power cable installation according to claim 1, characterized in that: The auxiliary movement mechanism (6) comprises a first shell (601), the surface of the first shell (601) is fixedly connected to the inner wall of the base plate (1), the inner wall of the first shell (601) is fixedly connected to a first motor (602) via a bracket, the end of the output shaft of the first motor (602) is fixedly connected to a first gear (603), the first gear (603) is meshed with a rack (604), a sliding groove processed on a protruding portion of the rack (604) is slidably connected to the surface of the protruding portion of the inner wall of the first shell (601), the end of the rack (604) is fixedly connected to the surface of a slider (605), the sliding groove processed on the slider (605) is slidably connected to the surface of the protruding portion of the inner wall of the first shell (601), the protruding portion of the slider (605) is in contact with the surface of a vertical rod (606), and the vertical rod (606) is slidably connected to the first shell (601) via a bracket and a through hole.

4. A tensioning device for power cable installation according to claim 3, characterized in that: A spring (11) is sleeved on the surface of the vertical rod (606); one end of the spring (11) is fixedly connected to the surface of the protruding portion of the vertical rod (606); the other end of the spring (11) is fixedly connected to the inner wall of the first housing (601) via a bracket; and the end of the vertical rod (606) is fixedly connected to the surface of the first connecting frame (5).

5. A tensioning device for power cable installation according to claim 1, characterized in that: The tension adjustment mechanism (3) comprises a second housing (301), the surface of the second housing (301) being fixedly connected to the surface of the bottom plate (1), the inner wall of the second housing (301) being fixedly connected to a second motor (302) via a bracket, the end of the output shaft of the second motor (302) being fixedly connected to a second gear (303), the second gear (303) being meshed with a third gear (304), the third gear (304) being rotatably connected to the inner wall of the second housing (301) via a pin shaft, and the second gear (303) being meshed with a third gear (304), A threaded rod (305) is fixedly connected to the surface of the third gear (304); the threaded rod (305) is rotatably connected to the second housing (301) via a bearing; the threaded rod (305) is threadably connected to a movable plate (306); a sliding groove processed on the movable plate (306) is slidably connected to the surface of a fixed column (307); both ends of the fixed column (307) are fixedly connected to the inner wall of the second housing (301); and the movable plate (306) is slidably connected to the sliding groove processed on the second housing (301).

6. A tensioning device for power cable installation according to claim 5, characterized in that: The end of the movable plate (306) is fixedly connected to the surface of the third connecting frame (8).

Images