Traction device convenient for cable laying

Abstract

The invention belongs to the technical field of power equipment, and particularly relates to a traction device facilitating cable laying, which comprises a cable guide mechanism and a traction rope traction mechanism, the cable guide mechanism comprises a bottom plate, two side plates, a lower carrier roller group, an upper compression roller group and two limiting assemblies, the two side plates are fixed on the bottom plate, the lower carrier roller group comprises a plurality of lower carrier rollers, and the upper compression roller group comprises a plurality of lower compression rollers; the upper pressing roller set comprises a fixing frame, a lifting frame and a plurality of upper pressing rollers, two threaded sleeves are arranged on the fixing frame, two threaded rods in threaded connection with the threaded sleeves are arranged on the lifting frame, and the two limiting assemblies are arranged at the front end and the rear end of the side plate respectively; the traction rope traction mechanism comprises a positioning assembly, a guiding assembly and a winding assembly, the winding assembly is used for winding the traction rope, the positioning assembly is used for positioning the traction rope, and the guiding assembly is used for guiding the traction rope. The device facilitates winding of the traction rope, provides convenience for next use, can also provide limiting and guiding effects for the cable, and facilitates laying work.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power equipment, and in particular relates to a traction device for facilitating cable laying. Background Art

[0002] The main forms of outdoor power transmission and distribution lines are overhead power lines and power cable lines. Among them, the laying forms of power cable lines mainly include direct buried cables, pipe cables, cable trenches or tunnels.

[0003] When laying direct buried cables, a pulley must be placed every 1.5-2m at the bottom of the cable trench. The cable should be pulled out from the top of the cable drum and placed on the pulley, then fastened with a rope and dragged forward. The cable must not be placed on the ground and dragged. When laying the cable with a traction device, it should move forward slowly, generally at a speed not exceeding 15m / min, and the traction head must be equipped with a wire sleeve.

[0004] The existing traction device generally rotates the traction rope drum driven by a motor, and then the cable is pulled and moved by the traction rope. However, in the process of winding the traction rope by the traction rope drum, there is a lack of a guiding mechanism for the traction rope, which causes the traction rope wound on the traction rope drum to be messy or too concentrated in a certain place, affecting the unwinding of the traction rope, which brings inconvenience to the next use; in addition, the existing pulley structure is simple and cannot provide a good guiding effect on the cable, which may cause the cable to fall off the pulley during the traction process, which brings inconvenience to the laying work.

[0005] Therefore, there is an urgent need for a traction device that is convenient for cable laying to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned defects in the prior art, the present invention provides a traction device for facilitating cable laying, including a cable guiding mechanism and a traction rope traction mechanism which are sequentially arranged along the traction direction of the cable, the cable guiding mechanism including a bottom plate, two side plates, a lower roller group, an upper pressure roller group and two limit assemblies, the two side plates are fixed on the left and right sides above the bottom plate, the lower roller group includes a plurality of lower rollers rotatably connected between the two side plates, the upper pressure roller group is arranged above the lower roller group, the upper pressure roller group includes a fixed frame, a lifting frame and a plurality of upper pressure rollers rotatably connected to the lifting frame, the fixed frame is fixedly connected to the side plate on one side, two threaded sleeves are fixedly arranged at the front and rear ends of the fixed frame, two threaded rods are rotatably connected at the front and rear ends above the lifting frame, and the two threaded rods are respectively threadedly connected to the two threaded sleeves, and the two limit assemblies are respectively arranged at the front and rear ends of the two side plates for limiting the cable.

[0007] The traction rope traction mechanism includes a positioning assembly, a guide assembly and a winding assembly which are arranged in sequence along the traction direction of the cable. The winding assembly includes a support frame, a traction rope drum and a winding motor. A base is provided at the bottom of the support frame. The traction rope drum is rotatably connected to the support frame. The winding motor is arranged on the base and is used to drive the traction rope drum to rotate. The positioning assembly includes a positioning cylinder. The positioning cylinder is in a trumpet shape with a front end diameter larger than a rear end diameter. The positioning cylinder is fixed to the base by a fixing rod at the bottom. The guide assembly is used to provide guidance for the traction rope.

[0008] Optionally, the limit assembly includes a box body, a horizontal guide rail, a two-way lead screw, two sliding blocks, two mounting seats and two limit rollers. The box body is fixedly connected to the two side plates, a limit slot is opened on the top of the box body, the horizontal guide rail is arranged at the bottom of the box body, the two-way lead screw is rotatably connected in the box body and is located above the horizontal guide rail, the left and right ends of the two-way lead screw respectively pass through the two sliding blocks, and the two sliding blocks are respectively slidably connected to the two-way lead screw through the nut pairs of the two-way lead screw, the bottoms of the two sliding blocks are both slidably connected to the horizontal guide rail, the two mounting seats are respectively arranged above the two sliding blocks, and the two mounting seats are respectively fixedly connected to the two sliding blocks through the mounting rods, and the two limit rollers are respectively rotatably connected above the two mounting seats.

[0009] Optionally, one end of the bidirectional lead screw passes through the box body and is installed with a hand-cranked turntable.

[0010] Optionally, an inclined plate is fixedly connected to the rear side of the box body at the rear end of the side plate, and the front end of the inclined plate is higher than the rear end.

[0011] Specifically, since there is a distance between the two cable guide mechanisms, when the traction rope pulls the cable from the previous cable guide mechanism to the next cable guide mechanism, the cable may first sink a short distance due to its own gravity, and then climb up the slope to the next cable guide mechanism, thereby facilitating the cable to transition between the two cable guide mechanisms.

[0012] Optionally, a counterweight is provided on the bottom plate.

[0013] Specifically, the counterweight is used to increase the overall weight of the cable guide mechanism.

[0014] Optionally, a handle is provided at the top end of the threaded rod.

[0015] Optionally, the guide assembly includes a box body, a guide slide rail, a screw rod, a slide seat, a guide ring and a forward and reverse motor. The box body is fixed to the base by a support rod at the bottom. A guide slot is opened on the top of the box body. The guide slide rail is arranged at the bottom of the box body. The screw rod is rotatably connected in the box body and is located above the guide slide rail. The screw rod passes through the slide seat, and the slide seat is slidably connected to the screw rod through a nut pair of the screw rod. The bottom of the slide seat is slidably connected to the guide slide rail. The guide ring is arranged above the slide seat, and the guide ring is fixedly connected to the slide seat through a connecting rod. The forward and reverse motor is arranged outside the box body, and the output shaft of the forward and reverse motor is transmission-connected to one end of the screw rod.

[0016] Optionally, limit blocks are provided at both ends of the horizontal guide rail and the guide slide rail.

[0017] Optionally, the traction rope is fixedly connected to the end of the cable through a wire mesh sleeve.

[0018] The present invention also includes other components that enable a traction device that facilitates cable laying to be used normally, which are all conventional technical means in the art. In addition, the devices or components not limited in the present invention all adopt conventional technical means in the art, such as a winding motor and a forward and reverse motor.

[0019] The working principle of the present invention is to first place a plurality of cable guide mechanisms at intervals at the bottom of the cable trench, and then, according to the diameter of the cable to be laid, by screwing the handle, the front and rear two threaded rods are rotated, and then the height of the upper pressure roller group is adjusted, thereby realizing the adjustment of the vertical distance between the upper pressure roller group and the lower roller group, and then, by manually rotating the hand-cranked turntable, the bidirectional lead screw is driven to rotate, so that the two sliding blocks move toward or away from each other, and then the two limiting rollers are moved closer to or away from each other, thereby realizing the adjustment of the lateral distance between the two limiting rollers; thereafter, one end of the traction rope is successively passed through the guide ring, the positioning cylinder and each cable guide mechanism of the guide mechanism, and is fixedly connected to the cable end through a wire mesh sleeve, and then the winding motor is started to drive the traction rope drum to rotate, and the cable is pulled, and the cable passes through the upper pressure roller group and the lower roller group of each cable guide mechanism and between the two limiting rollers one by one, and the upper pressure roller group, the lower roller group and the limiting assembly can limit and guide the cable. The guide assembly is used to guide the traction rope, and the guide ring is used to guide the traction rope. The guide ring is used to guide the traction rope. The traction rope is used to guide the traction rope. The traction rope is used to guide the traction rope. The traction rope is used to guide the traction rope. The traction rope is used to guide the traction rope. The traction rope is used to guide the traction rope. The traction rope is used to guide the traction rope.

[0020] Finally, the laid cable is disconnected from the traction rope, and the cable is taken out from the cable guide mechanism by lifting the upper pressure roller group and adjusting the two limit rollers.

[0021] The beneficial effect of the present invention is that the traction rope is guided by the guide assembly, which facilitates the winding of the traction rope and provides convenience for the next use; at the same time, the traction rope is positioned by the positioning assembly to prevent the cable from swinging due to the traction rope. The cable guide mechanism can provide a good limit and guide effect for the cable, which facilitates the smooth laying work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a left side view of the cable guide mechanism of the present invention.

[0025] Figure 3 It is a front view of the cable guiding mechanism of the present invention.

[0026] Figure 4 It is a schematic structural diagram of the limiting component of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the traction rope traction mechanism of the present invention.

[0028] Figure 6 It is a schematic structural diagram of the positioning component of the present invention.

[0029] Figure 7 It is a schematic structural diagram of the guide assembly of the present invention.

[0030] In the figure: 1. cable guide mechanism, 2. bottom plate, 3. side plate, 4. lower roller group, 5. limit assembly, 6. fixed frame, 7. lifting frame, 8. upper pressure roller, 9. threaded sleeve, 10. threaded rod, 11. box body, 12. horizontal guide rail, 13. bidirectional lead screw, 14. sliding block, 15. mounting seat, 16. limit roller, 17. positioning assembly, 18. guide assembly, 19. winding assembly, 20. base, 21. traction rope drum, 22. winding motor, 23. positioning cylinder, 24. fixed rod, 25. box body, 26. guide slide rail, 27. lead screw, 28. slide seat, 29. guide ring, 30. forward and reverse motor, 31. support rod, 32. inclined plate, 33. counterweight, 34. wire mesh sleeve, 35. traction rope, 36. cable. DETAILED DESCRIPTION

[0031] The present invention is described clearly below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description herein is only used to explain the present invention, but is not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent substitutions, improvements, etc., should be included in the protection scope of the present invention.

[0032] Example

[0033] like Figure 1-7As shown, an embodiment of the present invention provides a traction device for facilitating cable laying, including a cable guide mechanism 1 and a traction rope traction mechanism which are sequentially arranged along the traction direction of the cable 36, the cable guide mechanism 1 including a bottom plate 2, two side plates 3, a lower roller group 4, an upper pressure roller group and two limit assemblies 5, the two side plates 3 are fixed on the left and right sides above the bottom plate 2, the lower roller group 4 includes a plurality of lower rollers rotatably connected between the two side plates 3, the upper pressure roller group is arranged above the lower roller group 4, the upper pressure roller group includes a fixed frame 6, a lifting frame 7 and a plurality of upper pressure rollers 8 rotatably connected to the lifting frame 7, the fixed frame 6 is fixedly connected to the side plate 3 on one side, two threaded sleeves 9 are fixedly arranged at the front and rear ends of the fixed frame 6, two threaded rods 10 are rotatably connected at the front and rear ends above the lifting frame 7, and the two threaded rods 10 are respectively threadedly connected to the two threaded sleeves 9; the two limit assemblies 5 are respectively arranged at the front and rear ends of the two side plates 3 The end is used to limit the cable 36. The limiting assembly 5 includes a box body 11, a horizontal guide rail 12, a bidirectional lead screw 13, two sliding blocks 14, two mounting seats 15 and two limiting rollers 16. The box body 11 is fixedly connected to the two side panels 3. A limiting slot is provided on the top of the box body 11. The horizontal guide rail 12 is arranged at the bottom of the box body 11. The bidirectional lead screw 13 is rotatably connected in the box body 11 and is located above the horizontal guide rail 12. The left and right ends of the bidirectional lead screw 13 respectively pass through the two sliding blocks 14, and the two sliding blocks 14 are respectively slidably connected to the bidirectional lead screw 13 through the nut pairs of the bidirectional lead screw 13. The bottoms of the two sliding blocks 14 are both slidably connected to the horizontal guide rail 12. The two mounting seats 15 are respectively correspondingly arranged above the two sliding blocks 14, and the two mounting seats 15 are respectively fixedly connected to the two sliding blocks 14 through mounting rods, and the two limiting rollers 16 are respectively rotatably connected above the two mounting seats 15.

[0034] The traction rope traction mechanism includes a positioning assembly 17, a guide assembly 18 and a winding assembly 19 which are sequentially arranged along the traction direction of the cable 36; the winding assembly 19 includes a support frame, a traction rope drum 21 and a winding motor 22, a base 20 is arranged at the bottom of the support frame, the traction rope drum 21 is rotatably connected to the support frame, and the winding motor 22 is arranged on the base 20 for driving the traction rope drum 21 to rotate; the positioning assembly 17 includes a positioning cylinder 23, the positioning cylinder 23 is a trumpet-shaped positioning cylinder 23 with a front end diameter greater than a rear end diameter, and the positioning cylinder 23 is fixed to the base 20 by a fixing rod 24 at the bottom; the guide assembly 18 is used to provide guidance for the traction rope 35, and the guide assembly 18 includes a box 25, a guide slide rail 26, a screw rod 27, a slide seat 28, a guide ring 29 and a forward and reverse motor 30, the box body 25 is fixed to the base 20 through a support rod 31 at the bottom, a guide slot is opened on the top of the box body 25, a guide rail 26 is arranged at the bottom of the box body 25, a screw rod 27 is rotatably connected in the box body 25 and is located above the guide rail 26, the screw rod 27 passes through the slide 28, and the slide 28 is slidably connected to the screw rod 27 through the nut pair of the screw rod 27, the bottom of the slide 28 is slidably connected to the guide rail 26, the guide ring 29 is arranged above the slide 28, and the guide ring 29 is fixedly connected to the slide 28 through a connecting rod, the forward and reverse motor 30 is arranged outside the box body 25, and the output shaft of the forward and reverse motor 30 is drivingly connected to one end of the screw rod 27.

[0035] In addition, one end of the bidirectional lead screw 13 passes through the box body 11 and is installed with a hand-cranked turntable. The rear side of the box body 11 located at the rear end of the side plate 3 is fixedly connected with an inclined plate 32, and the front end of the inclined plate 32 is higher than the rear end. Since the two cable guide mechanisms 1 are separated by a distance, when the traction rope 35 pulls the cable 36 from the previous cable guide mechanism 1 to the next cable guide mechanism 1, the cable 36 may sink a small height due to its own gravity, and then climb up to the next cable guide mechanism 1 along the slope, so as to facilitate the transition of the cable 36 between the two cable guide mechanisms 1. A counterweight block 33 is arranged on the bottom plate 2, and the counterweight block 33 is used to increase the overall weight of the cable guide mechanism 1. A handle is arranged at the top of the threaded rod 10. Limit blocks are arranged at both ends of the horizontal guide rail 12 and the guide slide rail 26. The traction rope 35 is fixedly connected to the end of the cable 36 through a wire mesh sleeve 34.

[0036] The working principle of the present invention is to first place a plurality of cable guide mechanisms 1 at a certain distance at the bottom of the cable trench, and then according to the diameter of the cable 36 to be laid, by screwing the handle, the front and rear two threaded rods 10 are rotated to adjust the height of the upper pressure roller group, thereby adjusting the vertical distance between the upper pressure roller group and the lower roller group 4, and then manually rotating the hand-cranked turntable to drive the bidirectional lead screw 13 to rotate, so that the two sliding blocks 14 move toward or away from each other, thereby making the two limit rollers 16 approach or move away from each other, thereby achieving the horizontal distance between the two limit rollers 16. The cable 36 is pulled along the guide ring 29 of the guide mechanism, the positioning cylinder 23 and each cable guide mechanism 1, and then one end of the traction rope 35 is passed through the guide ring 29 of the guide mechanism, the positioning cylinder 23 and each cable guide mechanism 1 in turn, and is fixedly connected to the end of the cable 36 through the wire mesh sleeve 34, and then the winding motor 22 is started to drive the traction rope drum 21 to rotate, and the cable 36 is pulled. The cable 36 passes through the upper pressure roller group and the lower roller group 4 of each cable guide mechanism 1 and between the two limiting rollers 16 one by one, and the upper pressure roller group, the lower roller group 4 and the limiting assembly 5 can limit and guide the cable 36. While the cable 36 is being pulled, the forward and reverse motor 30 is started to drive the screw rod 27 to rotate forward and reverse periodically, so that the slide 28 drives the guide ring 29 to periodically reciprocate left and right, providing guidance for the traction rope 35, so that the traction rope 35 can be evenly wound around the traction rope drum 21; however, due to the action of the guide assembly 18, the traction rope 35 will swing back and forth, which will have a certain impact on the traction of the cable 36. The cable 36 coming out of the last cable guide mechanism 1 will definitely swing left and right with the traction rope 35. In order to avoid In order to avoid this unfavorable situation, a positioning assembly 17 is arranged between the cable guide mechanism 1 and the guide assembly 18. The positioning cylinder 23 is located in the vertical plane where the perpendicular line of the traction rope drum 21 is located. The end of the positioning cylinder 23 close to the traction rope drum 21 has a large diameter, and the end close to the cable guide mechanism 1 has a small diameter. In this way, the large-diameter end is used to cooperate with the large-angle swing of the traction rope 35, and the small-diameter end is used to position the traction rope 35, which plays a transitional role in the positioning of the traction rope 35, and also solves the swing problem caused by the traction of the cable 36.

[0037] Finally, the laid cable 36 is disconnected from the traction rope 35 , and the cable 36 is taken out from the cable guide mechanism 1 by lifting the upper pressure roller group and adjusting the two limit rollers 16 .

[0038] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A traction device for facilitating cable laying, comprising a cable guide mechanism and a traction rope traction mechanism sequentially arranged along the traction direction of the cable, characterized in that: The cable guide mechanism includes a bottom plate, two side plates, a lower roller group, an upper pressure roller group and two limit assemblies. The two side plates are fixed on the left and right sides above the bottom plate. The lower roller group includes a plurality of lower rollers rotatably connected between the two side plates. The upper pressure roller group is arranged above the lower roller group. The upper pressure roller group includes a fixed frame, a lifting frame and a plurality of upper pressure rollers rotatably connected to the lifting frame. The fixed frame is fixedly connected to the side plate on one side. Two threaded sleeves are fixedly arranged at the front and rear ends of the fixed frame. Two threaded rods are rotatably connected at the front and rear ends above the lifting frame, and the two threaded rods are respectively threadedly connected to the two threaded sleeves. The two limit assemblies are arranged at the front and rear ends of the two side plates for limiting the cable. The traction rope traction mechanism includes a positioning assembly, a guide assembly and a winding assembly which are arranged in sequence along the traction direction of the cable. The winding assembly includes a support frame, a traction rope drum and a winding motor. A base is provided at the bottom of the support frame. The traction rope drum is rotatably connected to the support frame. The winding motor is arranged on the base and is used to drive the traction rope drum to rotate. The positioning assembly includes a positioning cylinder. The positioning cylinder is in a trumpet shape with a front end diameter larger than a rear end diameter. The positioning cylinder is fixed to the base by a fixing rod at the bottom. The guide assembly is used to provide guidance for the traction rope.

2. The traction device for facilitating cable laying according to claim 1, characterized in that: The limit assembly includes a box body, a horizontal guide rail, a bidirectional lead screw, two sliding blocks, two mounting seats and two limit rollers. The box body is fixedly connected to the two side plates, a limit slot is provided on the top of the box body, the horizontal guide rail is arranged at the bottom of the box body, the bidirectional lead screw is rotatably connected in the box body and is located above the horizontal guide rail, the left and right ends of the bidirectional lead screw respectively pass through the two sliding blocks, and the two sliding blocks are respectively slidably connected to the bidirectional lead screw through the nut pairs of the bidirectional lead screw, the bottoms of the two sliding blocks are both slidably connected to the horizontal guide rail, the two mounting seats are respectively arranged above the two sliding blocks, and the two mounting seats are respectively fixedly connected to the two sliding blocks through the mounting rods, and the two limit rollers are respectively rotatably connected above the two mounting seats.

3. The traction device for facilitating cable laying according to claim 2, characterized in that: One end of the bidirectional lead screw passes through the box body and is provided with a hand-cranked turntable.

4. The traction device for facilitating cable laying according to claim 3, characterized in that: The rear side of the box body at the rear end of the side plate is fixedly connected with an inclined plate, and the front end of the inclined plate is higher than the rear end.

5. The traction device for facilitating cable laying according to claim 4, characterized in that: A counterweight block is arranged on the bottom plate.

6. The traction device for facilitating cable laying according to claim 5, characterized in that: A handle is arranged on the top end of the threaded rod.

7. The traction device for facilitating cable laying according to claim 6, characterized in that: The guide assembly includes a box body, a guide slide rail, a screw rod, a slide seat, a guide ring and a forward and reverse motor. The box body is fixed to the base through a support rod at the bottom. A guide slot is opened on the top of the box body. The guide slide rail is arranged at the bottom of the box body. The screw rod is rotatably connected in the box body and is located above the guide slide rail. The screw rod passes through the slide seat, and the slide seat is slidably connected to the screw rod through a nut pair of the screw rod. The bottom of the slide seat is slidably connected to the guide slide rail. The guide ring is arranged above the slide seat, and the guide ring is fixedly connected to the slide seat through a connecting rod. The forward and reverse motor is arranged outside the box body, and the output shaft of the forward and reverse motor is transmission-connected to one end of the screw rod.

8. The traction device for facilitating cable laying according to claim 7, characterized in that: Limit blocks are arranged at both ends of the horizontal guide rail and the guide slide rail.

9. The traction device for facilitating cable laying according to claim 8, characterized in that: The traction rope is fixedly connected to the end of the cable through a wire mesh sleeve.

Images