A power cable rotation and bending device

Abstract

This utility model provides a power cable rotary bending device, including a connecting frame. A reducer is fixedly connected to the front side of the connecting frame. The output shaft end of the reducer is connected to a rotating pressure roller via a connecting rod, and the axis of the rotating pressure roller is parallel to the output shaft of the reducer. The distance between the rotating pressure roller and the output shaft of the reducer is adjustable. A fixed roller is also provided in front of the connecting frame, opposite to the rotating pressure roller, and the axis of the fixed roller is collinear with the axis of the output shaft of the reducer. The advantages of this utility model are: this device effectively solves the problem of difficult power cable rotary bending manufacturing and effectively improves the efficiency of power cable manufacturing, while preventing the risk of personal injury caused by the rebound of the power cable during the manufacturing process.

Description

Technical Field

[0001] This utility model belongs to the field of power wire processing technology, and in particular relates to a power wire rotary bending device. Background Technology

[0002] Common 10 kV and below power guy wires are important supporting facilities for directly buried poles and overhead lines. Guy wires are generally made of multi-strand galvanized steel strands with specifications between 35 and 100 square millimeters. When making the curved arc of the wedge-shaped wire clamp tongue, the galvanized steel strand needs to be bent nearly 180 degrees. When the cross-sectional area of ​​the galvanized steel strand exceeds 50 square millimeters, manual operation becomes increasingly laborious as the wire diameter increases. During the production process, the tail wire rebound can easily cause injury to the workers. Moreover, the arc is usually not able to fit tightly with the tongue, requiring secondary reshaping and adjustment, which leads to low efficiency of manual operation. Utility Model Content

[0003] In view of this, the present invention aims to overcome the shortcomings of the above-mentioned problems in the prior art and proposes a power cable rotation and bending device.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A power cable rotary bending device includes a connecting frame, a reducer fixedly connected to the front side of the connecting frame, a rotating pressure roller connected to the output shaft end of the reducer via a connecting rod, and the axis of the rotating pressure roller being parallel to the output shaft of the reducer. The distance between the rotating pressure roller and the output shaft of the reducer is adjustable. A fixed wheel is also provided in front of the connecting frame, opposite to the rotating pressure roller, and the axis of the fixed wheel being collinear with the axis of the output shaft of the reducer.

[0005] Furthermore, two longitudinally spaced mounting plates are horizontally fixed to the front side of the connecting frame. The reducer is fixed between the two mounting plates. The input shaft of the reducer passes vertically through the upper mounting plate and is connected to a crank handle. The output shaft passes vertically through the lower mounting plate and is snapped together with the connecting rod.

[0006] Furthermore, the output shaft of the reducer is connected to one end of the connecting rod via a spline, and the other end of the connecting rod has a strip-shaped adjustment groove along its length. A fixed rod is fixedly connected in the adjustment groove, and the rotating pressure roller is rotated and sleeved on the fixed rod.

[0007] Furthermore, a connecting plate is horizontally fixed to the front side of the connecting frame. The connecting plate is located below the mounting plate on the lower side, and the fixing wheel is fixed to the lower side of the mounting plate by bolts.

[0008] Furthermore, the connecting plate is recessed inward on the side facing the rotating pressure roller, providing a clearance groove.

[0009] Furthermore, a connecting block is vertically fixed to the bottom of the connecting plate, and a second threaded hole is horizontally opened on the connecting block. A clamping bolt is screwed into the second threaded hole, and the end of the clamping bolt is set towards the fixed wheel.

[0010] Furthermore, the fixed wheel has an annular first limiting groove on its circumferential surface, and the rotating pressure wheel has an annular second limiting groove on its circumferential surface, with the first limiting groove and the second limiting groove being arranged opposite to each other.

[0011] Furthermore, the connecting frame includes two longitudinally spaced fixing plates with an arc-shaped structure. Each fixing plate has a strapping band fixed at both ends, and the other ends of the strapping bands are fixed together by snap fasteners. Each fixing plate has a mounting plate horizontally fixed to its front side, and the connecting plate is horizontally fixed to the front side of the lower fixing plate.

[0012] Furthermore, the reducer is a multi-stage planetary gear reducer.

[0013] Compared with the prior art, this utility model has the following advantages: The electric wire bending and turning device described in this utility model involves fixing the connecting frame to the support column, passing one end of the electric wire between the rotating pressure roller and the fixed roller, and fixing the side of the electric wire that does not pass through the rotating pressure roller and the fixed roller. A reducer drives the rotating pressure roller to rotate, and under the action of the rotating pressure roller, the electric wire is bent and shaped along the fixed roller. This device effectively solves the problem of difficult electric wire bending and turning processes, significantly improves the efficiency of electric wire production, and prevents the risk of personal injury caused by the springback of the electric wire during production. Attached Figure Description

[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a schematic diagram of the structure of the power cable rotation and bending device described in an embodiment of the present utility model; Figure 2 This is a structural schematic diagram of the power cable rotation and bending device described in this embodiment of the invention from a bottom side view. Figure 3 This is a bottom view of the power cable rotation and bending device described in this embodiment of the utility model; Figure 4 This is a schematic diagram of the connection structure between the connecting rod and the rotating pressure wheel according to an embodiment of the present utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Connecting frame; 101. Fixing plate; 102. Bundling strap; 2. Mounting plate; 3. Reducer; 4. Connecting rod; 401. Clip hole; 402. Keyway; 403. Adjustment groove; 5. Rotating pressure roller; 6. Fixing roller; 7. Connecting plate; 701. Clearance groove; 8. Connecting block; 9. Tightening bolt; 10. Handle; 11. Fixing rod; 1101. Connecting platform; 12. Power cable; 13. Support column. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions 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 suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] As shown in the figure, a power cable rotary bending device includes a connecting frame 1. A reducer 3 is fixedly connected to the front side of the connecting frame 1. The output shaft end of the reducer 3 is connected to a rotating pressure roller 5 via a connecting rod 4. The axis of the rotating pressure roller 5 is parallel to the output shaft of the reducer 3, and the distance between the rotating pressure roller 5 and the output shaft of the reducer 3 is adjustable. A fixed wheel 6 is also provided in front of the connecting frame 1, opposite to the rotating pressure roller 5, and the axis of the fixed wheel 6 is collinear with the axis of the output shaft of the reducer 3. In this embodiment, during use, the connecting frame 1 is fixed on the support column 13, one end of the power cable 12 (i.e., steel strand) is passed through the rotating pressure roller 5 and the fixed wheel 6, and the side of the power cable 12 that does not pass through the rotating pressure roller 5 and the fixed wheel 6 is fixed. The reducer 3 drives the rotating pressure roller 5 to rotate, and under the action of the rotating pressure roller 5, the power cable 12 is bent and shaped along the fixed wheel 6.

[0023] Two longitudinally spaced mounting plates 2 are horizontally fixed to the front side of the connecting frame 1. The reducer 3 is fixed between the two mounting plates 2. The input shaft of the reducer 3 passes vertically through the upper mounting plate 2 and is connected to a rocker arm 10. The output shaft passes vertically through the lower mounting plate 2 and is engaged with the connecting rod 4. In this embodiment, the end of the input shaft of the reducer 3 has an external hexagonal structure. An internal hexagonal through hole is provided at the connection between the rocker arm 10 and the input shaft. The rocker arm 10 is engaged with the input shaft of the reducer 3 through the internal hexagonal through hole. A rocker arm is vertically provided at the other end of the rocker arm 10. Rotating the rocker arm drives the rotation of the input shaft of the reducer 3.

[0024] The output shaft of the reducer 3 is connected to one end of the connecting rod 4 via a cross spline. The other end of the connecting rod 4 has a strip-shaped adjustment groove 403 along its length. A fixed rod 11 is fixedly connected in the adjustment groove 403, and the rotating pressure roller 5 is rotatably sleeved on the fixed rod 11. In this embodiment, an integrally formed annular connecting platform 1101 is provided in the middle of the fixed rod 11. The connecting platform 1101 is set to press against the lower side of the connecting rod 4, and the upper part of the fixed rod 11 passes through the adjustment groove 403 and is screwed with a first nut that abuts against the upper side of the connecting rod 4. The rotating pressure roller 5 is sleeved on the lower part of the fixed rod 11, and there is a clearance fit between the rotating pressure roller 5 and the lower part of the fixed rod 11 to ensure that the rotating pressure roller 5 can rotate along the fixed rod 11. A second nut located below the rotating pressure roller 5 is screwed at the lower end of the fixed rod 11. The second nut limits the rotation of the rotating pressure roller 5 longitudinally without affecting its rotation. In this embodiment, the output shaft of the reducer 3 is provided with multiple splines circumferentially. The connecting rod 4 has a locking hole 401 on the side away from the adjusting slot 403, and a keyway 402 communicating with the locking hole 401 is provided circumferentially at the spline corresponding to the locking hole 401. The output shaft of the reducer 3 is engaged in the locking hole 401, and the spline is engaged in the corresponding keyway 402. An interference fit is formed between the output shaft of the reducer 3 and the connecting rod 4, achieving the connection between the connecting rod 4 and the reducer 3. In this embodiment, the top positions of the fixing rod 11 and the first nut are both lower than the top position of the side of the connecting rod 4 with the locking hole 401, ensuring that the connecting rod 4, after being installed on the output shaft of the reducer 3, is not restricted by the mounting plate 2 below when rotating.

[0025] A connecting plate 7 is horizontally fixed to the front side of the connecting frame 1. The connecting plate 7 is located below the mounting plate 2 on the lower side. The fixing wheel 6 is fixed to the lower side of the mounting plate 2 by bolts. In this embodiment, a countersunk hole is opened at the bottom of the fixing wheel 6, and a first threaded hole is opened on the connecting plate 7 at the corresponding countersunk hole. The fixing wheel 6 and the connecting plate 7 are fixed together by the cooperation of bolts, countersunk hole and first threaded hole.

[0026] The connecting plate 7 is recessed inward on the side facing the rotating pressure roller 5 to ensure that the rotating pressure roller 5 is not interfered with by the connecting plate 7 when it rotates along the output shaft of the reducer 3.

[0027] A connecting block 8 is vertically fixed to the bottom of the connecting plate 7. A second threaded hole is horizontally opened on the connecting block 8. A clamping bolt 9 is screwed into the second threaded hole, and the end of the clamping bolt 9 is set towards the fixed wheel 6.

[0028] The fixed wheel 6 has a first annular limiting groove on its circumferential surface, and the rotating pressure wheel 5 has a second annular limiting groove on its circumferential surface, with the first and second limiting grooves arranged opposite to each other. In this embodiment, both the first and second limiting grooves have V-shaped or arc-shaped cross-sections, which are used to limit the power cable 12 and prevent it from detaching from the fixed wheel 6 and the rotating pressure wheel 5.

[0029] The connecting frame 1 includes two longitudinally spaced fixing plates 101, each with an arc-shaped structure. A strapping strap 102 is fixed to both ends of each fixing plate 101, and the other ends of the strapping straps 102 are fastened together by snap fasteners. A mounting plate 2 is horizontally fixed to the front side of each fixing plate 101, and a connecting plate 7 is horizontally fixed to the front side of the lower fixing plate 101. In this embodiment, the strapping straps are braided straps, and the use of snap fasteners and braided straps for fixing is a conventional technique. No improvements have been made to the snap fasteners here, therefore the specific structure of the snap fasteners will not be described in detail.

[0030] The reducer 3 is a multi-stage planetary gear reducer 3.

[0031] In this embodiment, the size of the rotating pressure roller 5 can be adjusted according to the cross-sectional dimensions of the power cable 12, and a suitable size rotating pressure roller 5 can be replaced. Of course, the rotating pressure roller 5 and the fixed roller 6 can also be replaced at the same time.

[0032] The working process of this embodiment is as follows: The device is installed on the support column 13, such as a utility pole or other vertically set cylinder. If a utility pole is used, since the cross-sectional size of the utility pole increases from top to bottom, after the connecting frame 1 is fixed to the utility pole by the binding strap 102, the device will move slightly downward under its own weight, causing the connection between it and the utility pole to get closer and closer, and finally be firmly installed on the utility pole. Adjust the position of the fixing rod 11 in the adjusting slot 403 according to the required bending degree of the power cable 12, and then adjust the position of the rotating pressure roller 5; pass one end of the power cable 12 between the rotating pressure roller 5 and the fixing roller 6, and tighten the clamping bolt 9 until it is pressed onto the power cable 12; then hold the crank handle 10 and turn it, which will drive the output shaft of the reducer 3 to rotate, so that the connecting rod 4 and the rotating pressure roller 5 rotate along the axis of the output shaft of the reducer 3. The rotation of the rotating pressure roller 5 will bend the power cable 12 along the fixing roller 6; and to prevent the steel strand from springing back, maintain the pressure of the rotating pressure roller 5 for 2-3 minutes after bending; finally, loosen the clamping bolt 9 and take out the bent power cable 12.

[0033] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electrical messenger swivel bending device characterized by: The device includes a connecting frame, a reducer fixed to the front side of the connecting frame, and a rotating pressure roller connected to the output shaft end of the reducer via a connecting rod. The axis of the rotating pressure roller is parallel to the output shaft of the reducer, and the distance between the rotating pressure roller and the output shaft of the reducer is adjustable. A fixed roller is also provided in front of the connecting frame, opposite to the rotating pressure roller, and the axis of the fixed roller is collinear with the axis of the output shaft of the reducer.

2. A power guy rotation bending device according to claim 1, characterized in that: Two longitudinally spaced mounting plates are horizontally fixed to the front side of the connecting frame. The reducer is fixed between the two mounting plates. The input shaft of the reducer passes vertically through the upper mounting plate and is connected to a crank handle. The output shaft passes vertically through the lower mounting plate and is snapped together with the connecting rod.

3. The electric wire rotation and bending device according to claim 1, characterized in that: The output shaft of the reducer is connected to one end of the connecting rod by a spline. The other end of the connecting rod has a strip-shaped adjustment groove along its length. A fixed rod is fixedly connected in the adjustment groove, and the rotating pressure roller is rotated and sleeved on the fixed rod.

4. The power cable rotary bending device according to claim 2, characterized in that: A connecting plate is also horizontally fixed to the front side of the connecting frame. The connecting plate is located below the mounting plate on the lower side, and the fixing wheel is fixed to the lower side of the mounting plate by bolts.

5. A power cable rotation and bending device according to claim 4, characterized in that: The connecting plate has an inward recessed clearance groove on the side facing the rotating pressure roller.

6. The electric wire rotation and bending device according to claim 4, characterized in that: A connecting block is also vertically fixed to the bottom of the connecting plate. A second threaded hole is horizontally opened on the connecting block. A clamping bolt is screwed into the second threaded hole, and the end of the clamping bolt is set towards the fixed wheel.

7. The electric wire rotation and bending device according to claim 1, characterized in that: The fixed wheel has a first annular limiting groove on its circumferential surface, and the rotating pressure wheel has a second annular limiting groove on its circumferential surface, with the first limiting groove and the second limiting groove being arranged opposite to each other.

8. A power cable rotary bending device according to claim 4, characterized in that: The connecting frame includes two longitudinally spaced fixing plates with an arc-shaped structure. Each fixing plate has a strapping band fixed at both ends, and the other ends of the strapping bands are fixed together by snap fasteners. Each fixing plate has a mounting plate horizontally fixed to its front side, and the connecting plate is horizontally fixed to the front side of the lower fixing plate.

9. A power cable rotary bending device according to claim 1, characterized in that: The reducer is a multi-stage planetary gear reducer.

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