Cable winding and unwinding device for power construction

Abstract

The invention relates to the technical field of power construction auxiliary machinery, and particularly discloses a cable take-up and pay-off device for power construction, which comprises a take-up and pay-off frame and a take-up drum, a lifting and pay-off mechanism is rotatably arranged in the take-up and pay-off frame, the lifting and pay-off mechanism comprises two parallel lifting and pay-off arms rotatably connected with an upper side plate of the take-up and pay-off frame, one ends of the two lifting and pay-off arms extend out of the take-up and pay-off frame, and the other ends of the two lifting and pay-off arms extend out of the take-up drum. A vertical limiting groove is formed in the lifting arm, a limiting supporting block is connected into the vertical limiting groove through a spring, a semicircular groove matched with an upper roller shaft of the winding roller is formed in the upper surface of the limiting supporting block, a hydraulic cylinder is connected to the lower end of the vertical limiting groove, and a second piston is arranged in the hydraulic cylinder; a second piston rod is connected between the second piston and the limiting support block; hydraulic telescopic shafts aligned with the semicircular grooves are rotationally connected to the two side plates of the folding and unfolding frame. According to the cable take-up and pay-off device, multiple purposes are achieved through one machine, replacement of the cable coil is rapid and convenient, and safety is high.

Description

Technical Field

[0001] The invention relates to the technical field of electric power construction auxiliary machinery, and specifically discloses a cable retracting and releasing device for electric power construction. Background Art

[0002] During the power construction process, the cable length requirement is often high due to the large amount of work, and multiple cables need to be unwound and reeled in. At present, the cable reeling device on the market is usually used in conjunction with the cable reel, and the two are an integrated structure. After one cable is unwound or reeled in, another cable cannot be loaded onto the reeling device for cable reeling.

[0003] For example, the invention patent with application number 202111281120X discloses a cable retractable turntable, including a first driving member arranged on a frame and a reel rotatably arranged on the frame, the first driving member drives the reel to rotate, and also includes a cooling fan, an air outlet and a cleaning device. Another example is the invention patent with application number 2015105427154 discloses a cable reel for retracting and releasing cables, including a support and a drum, the drum is installed on the support, the side wall of the drum is used to wind the front section of the cable, a cable connection hole is provided on the side wall, a cable retractable hole is provided at the end of the drum, the cable connection hole and the cable retractable hole are both connected to the wire storage compartment inside the drum, and the wire storage compartment is used to store the rear section of the cable. The cable retracting and releasing devices disclosed in the above two invention patents are in the form of assembling the reel with the entire device as a whole. Although the automatic reeling or unreeling of the cable is realized, the reel is not easy to replace. When multiple reels need to be reeled and released for the cable, even if the reel can be forcibly disassembled and replaced, the reel fully loaded with cables is heavy and requires the use of lifting equipment to assist in replacement. It is not only cumbersome to operate and labor-intensive, but also has great safety hazards. Based on this, the present application proposes a cable retracting and releasing device for power construction that can effectively solve the above technical problems. Summary of the invention

[0004] The present invention aims to provide a cable retracting device for electric power construction to solve the problem that the existing reel and the entire device are designed to be assembled as one, and the cable retracting operation on multiple reels cannot be completed quickly and conveniently by one retracting device.

[0005] The present invention is achieved through the following technical solutions: A cable retracting and releasing device for electric power construction comprises a retracting and releasing frame and a reeling drum, wherein a lifting and releasing mechanism is rotatably arranged in the retracting and releasing frame, wherein the lifting and releasing mechanism comprises two lifting and releasing arms which are parallel and rotatably connected to the upper side plate of the retracting and releasing frame, wherein one end of the two lifting and releasing arms extends out of the retracting and releasing frame, and the other end is commonly connected to a handle, wherein a vertical limiting groove is provided on the lifting and releasing arm, wherein a limiting support block is connected to the vertical limiting groove via a spring, and a semicircular groove which is adapted to the upper cylinder shaft of the reeling drum is provided on the upper surface of the limiting support block, wherein a hydraulic cylinder is connected to the lower end of the vertical limiting groove, wherein a second piston is arranged in the hydraulic cylinder, and a second piston rod is connected between the second piston and the limiting support block; Hydraulic telescopic shafts aligned with the semicircular grooves are rotatably connected to the two side plates of the retractable frame, and a pipeline assembly for conveying hydraulic oil is connected between the hydraulic telescopic shaft and the hydraulic cylinder. A second toothed disk is provided at the inner end of the hydraulic telescopic shaft extending out of the retractable frame, and a first toothed disk that acts on the second toothed disk is provided on the two drum shafts of the reeling drum. A driving assembly for driving the hydraulic telescopic shaft is provided on the retractable frame.

[0006] As a further configuration of the above scheme, the hydraulic telescopic shaft includes an outer sleeve shaft rotatably connected to the upper side plate of the retractable frame, a telescopic shaft that moves axially is limitedly inserted in the outer sleeve shaft, the second toothed disk is connected to the outer end of the telescopic shaft, a columnar hydraulic chamber is opened in the outer sleeve shaft, a first piston is arranged in the columnar hydraulic chamber, a first piston rod is arranged between the first piston and the telescopic shaft, and a liquid inlet end connected to the columnar hydraulic chamber is arranged at the outer end of the outer sleeve shaft.

[0007] As a further configuration of the above scheme, the pipeline assembly includes a hose connected to the lower end of the hydraulic cylinder, the end of the hose is connected to a hard pipe, and the end of the hard pipe is provided with a connecting sleeve that is sealingly and rotatably connected to the liquid inlet end.

[0008] As a further configuration of the above scheme, the driving assembly includes a driving motor and a battery arranged on the storage rack, and transmission wheels are arranged on the motor shaft and the outer sleeve shaft of the driving motor, and a transmission member is arranged between the two transmission wheels.

[0009] As a further configuration of the above scheme, the winding drum includes a cylinder body, both ends of which are provided with cylinder shafts adapted to the semicircular grooves, sleeve shafts are inserted into the upper limit positions of the two cylinder shafts, and the first toothed disk is fixedly connected to the outer end of the sleeve shaft.

[0010] As a further configuration of the above solution, a ball is movably embedded on the inner wall of the semicircular groove on the upper surface of the limiting bracket block.

[0011] As a further configuration of the above solution, the storage rack includes a bottom plate and side plates, the two side plates are fixedly connected to the two ends of the bottom plate, and the lower surface of the bottom plate is provided with universal wheels.

[0012] As a further configuration of the above scheme, two bearings are provided on each of the two side panels, and the two bearings are aligned one by one, the two hydraulic telescopic shafts are rotatably provided in the two aligned bearings respectively, and the two lifting arms are provided with a convex shaft rotatably connected to another group of bearings.

[0013] As a further configuration of the above scheme, a uniform winding mechanism is arranged in the storage and unloading frame located above the lifting and unloading mechanism, and the uniform winding mechanism includes a fixedly arranged cross beam, in which a linear groove is opened, in which a reciprocating screw is rotatably arranged, and the end of the reciprocating screw is connected to the hydraulic telescopic shaft through a transmission mechanism, and a screw hole block matching the reciprocating screw is arranged in the linear groove, and a guide ring is arranged at the lower end of the screw hole block.

[0014] When the cable retracting device disclosed in the present invention is used to reel in or unreel multiple cables, the user pushes the retracting frame to a position close to the reeling drum, and then lifts the handle upward to lower the end of the lifting arm to a height lower than the shafts at both ends of the reeling drum. Then, the lower end of the lifting arm is pushed below the shafts at both ends of the reeling drum, and the handle is pressed downward, so that the end of the lifting arm lifts the reel under the lever action of the lifting arm, and after the reel is lifted, it can roll along the upper surface of the lifting arm to the position of the limiting support block, so that the shafts at both ends of the reel fall into the semicircular grooves on the limiting support block.

[0015] After the winding drum is lifted and positioned, the lifting arm is adjusted to the horizontal position. At this time, the limit support block is pressed to the lower end of the vertical limit groove under the action of gravity, and then the hydraulic oil in the hydraulic cylinder is squeezed out under the action of the second piston and the second piston rod. Then, the hydraulic oil enters the hydraulic telescopic shaft through the pipeline assembly, forcing the hydraulic telescopic shaft to extend. Under the action of the extension of the hydraulic telescopic shaft, the first tooth surface disk is pushed to engage with the second tooth surface disk. After the engagement is completed, the driving assembly is started to make the winding drum rotate synchronously, thereby completing the unwinding of the cable on the drum or the rewinding of the unwound cable. Finally, after the cable is unwound or rewound, the lifting arm is adjusted to the horizontal state again, so that the winding drum can roll down along the two lifting arms. Beneficial Effects

[0016] The cable retracting and releasing device disclosed in the present invention changes the existing integrated assembly design of the reel and the entire reeling device. The design of the lifting and lowering mechanism can quickly lower the reel after unloading or unwinding, and then lift the new reel, and realize the rotation of the reel for unloading or unwinding under the meshing transmission of the toothed disk; the entire cable retracting and releasing device not only realizes the multi-purpose use of one machine, but also the replacement of the cable reel is relatively fast and convenient with high safety.

[0017] The present invention also utilizes the gravity of the reel to fill the hydraulic oil in the hydraulic cylinder into the hydraulic telescopic shaft, and then realizes the engagement between the first and second tooth surface plates through the extension of the hydraulic telescopic shaft. Its structural design is novel and ingenious, and can be linked with the loading and unloading actions of the reel. There is no need to set up additional driving parts to realize the power connection between the reel and the driving assembly after switching, and the use effect is excellent.

[0018] The present invention further provides a uniform winding mechanism which is synchronously linked with the rotation process of the drum, so that the cable can be reciprocated along the length direction of the drum during the cable winding process, so that the cable can be evenly wound on the drum, effectively improving the cable winding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure from a first angle of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from a second angle of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the storage rack in the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the lifting and placing mechanism in the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the winding drum in the present invention; Figure 6 It is a schematic diagram of the internal three-dimensional structure of the hydraulic telescopic shaft in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the uniform winding mechanism in the present invention. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 7, and describes the application in detail with reference to embodiments. Example 1

[0023] Embodiment 1 discloses a cable retracting device for electric power construction, Figure 1 and attached Figure 2 The main body of the device includes a retractable frame 1, a reel 2 and a lifting mechanism 3. The lifting mechanism 3 is rotatably arranged inside the retractable frame 1, and then the reel 2 is lifted into the retractable frame 1 by the lifting mechanism 3, or the reel 2 that has completed cable reeling is lowered.

[0024] Reference Figure 3 The storage rack 1 includes a bottom plate 101 and two side plates 102. The two side plates 102 are fixedly connected to the two ends of the bottom plate 101, and a plurality of universal wheels 103 are arranged on the lower surface of the bottom plate 101, so that the entire storage rack 1 is easy to move. Two bearings 104 are arranged on both side plates 102, and the two bearings 104 are aligned one by one. A hydraulic telescopic shaft 4 is rotatably arranged in one set of aligned bearings 104, and the ends of the two hydraulic telescopic shafts 4 extending into the storage rack 1 are connected to a first toothed disk 5, and then a driving assembly 6 is connected to the outer end of one of the hydraulic telescopic shafts 4. The driving assembly 6 includes a driving motor 601 and a battery 602 arranged in the storage rack 1. The battery 602 supplies power to the driving motor 601, and then a first pulley 603 is arranged on the motor shaft of the driving motor 601. A second pulley 604 is arranged on the hydraulic telescopic shaft 4, and finally a transmission belt 605 is arranged between the first pulley 603 and the second pulley 604. Of course, the pulley and the transmission belt can also be conventionally replaced by a sprocket and a chain.

[0025] For the specific structure of the hydraulic telescopic shaft 4, please refer to the attached Figure 6 , which includes an outer sleeve shaft 401 rotatably connected to a bearing 104, and a second pulley 603 is fixedly connected to the outer sleeve shaft 401. A telescopic shaft 402 that moves axially is inserted in a limited position in the outer sleeve shaft 401, and a first toothed disk 5 is connected to the outer end of the telescopic shaft 402. A columnar hydraulic chamber 403 is provided inside the outer sleeve shaft 401 away from the telescopic shaft 402, a first piston 404 is provided in the columnar hydraulic chamber 403, and then a first piston rod 405 is connected between the first piston 404 and the inner end of the telescopic shaft 402, and finally a liquid inlet end 406 connected to the columnar hydraulic chamber 403 is provided on the outer end surface of the outer sleeve shaft 401.

[0026] Reference Figure 4The lifting mechanism 3 includes two lifting arms 301 arranged in a front-to-back alignment, and a convex shaft 302 is provided on the lifting arm 301 and is rotatably connected to another bearing 104 on the corresponding side plate 102. One end of the two lifting arms 301 extends out of the storage rack 1, and then a handle 303 is connected between the other ends of the two lifting arms 301, and a cross bar 105 is provided between the two side plates 102 to horizontally support the handle 303. The user can operate the handle 303 to rotate the other ends of the two lifting arms 301 up and down to complete the lifting or lowering of the winding drum 2. In addition, in order to reduce the force of lifting or lowering the winding drum 2, the handle 303 can also be set to be telescopic, using the lever principle to reduce the force applied by the user.

[0027] A vertical limit groove 304 is provided at the upper end of the lifting arm 301 near the convex shaft 302, and a limit support block 306 is connected to the bottom of the vertical limit groove 304 through a spring 305, and then a semicircular groove 3061 is provided on the upper surface of the limit support block 306 to match the cylinder shafts at both ends of the winding drum 2, and a large number of balls are movably embedded on the inner wall of the semicircular groove 3061 to reduce friction resistance. A hydraulic cylinder 307 is provided through the bottom wall of the vertical limit groove 304 directly below the limit support block 306, and a second piston 308 is provided in the hydraulic cylinder 307, and a second piston rod 309 is connected between the second piston 308 and the bottom wall of the limit support block 306. A hose 310 is connected to the lower end of the hydraulic cylinder 307 , a hard tube 311 penetrating the side plate 102 is connected to the end of the hose 310 , and finally a connecting sleeve 312 sealingly and rotatably connected to the liquid inlet end 406 on the hydraulic telescopic shaft 4 is provided at the end of the hard tube 311 .

[0028] Reference Figure 5 The winding drum 2 is an improved design of the existing winding drum 2, which includes a cylinder body 201, and a cylinder shaft 202 adapted to the semicircular groove 3061 is concentrically arranged on the two end surfaces of the cylinder body 201, and a key groove 203 or a key is arranged on the outer circumferential surface of the cylinder shaft 202, and then a sleeve shaft 204 is inserted at the end of the cylinder shaft 202 through the key groove 203 or the key, so that the cylinder shaft 202 and the sleeve shaft 204 can rotate synchronously under the action of the key groove 203 or the key, and finally a second tooth surface disk 205 that acts on the first tooth surface disk 5 is arranged at the outer end of the sleeve shaft 204.

[0029] When the cable retracting device disclosed in the present embodiment 1 is used, the reel 2 on the ground is first assembled (i.e., the sleeve shaft 204 is inserted into the cylinder shafts 202 at both ends), and then the operator pushes the entire retracting frame 1 close to the reel 2, so that the protruding ends of the two lifting arms 301 correspond to the two cylinder shafts 202, and then the protruding ends of the two lifting arms 301 are lowered to a height lower than the cylinder shaft 202 through the handle 303. Then the entire retracting frame 1 is pushed further toward the reel 2, so that the protruding ends of the two lifting arms 301 are located below the cylinder shaft 202, and then the handle 303 is pressed down, and the entire reel 2 is lifted by the lever principle. When lifted to a position exceeding the horizontal position, the reel 2 will roll toward the other end along the upper surface of the two lifting arms 301 until the cylinder shaft 202 falls into the semicircular groove 3061 of the limiting support block 306. At this time, due to the effect of the gravity of the winding drum 2 and the cable, the limit support block 306 will overcome the spring 305 and move downward, and then the entire lifting mechanism 3 will be adjusted to a horizontal state, so that the hydraulic telescopic shaft 4 and the cylinder shaft 202 are in the same straight line. At the same time, during the downward movement of the limit support block 306, the second piston 308 will be pushed downward by the second piston rod 309, so that the hydraulic oil inside the hydraulic cylinder 307 will be injected into the hydraulic telescopic shaft 4 through the hose 310 and the hard tube 311. At this time, the hydraulic telescopic shaft 4 will move the telescopic shaft 402 toward the direction of the winding drum 2 under the action of the first piston 404 and the first piston rod 405 until the first tooth surface disk 5 and the second tooth surface disk 205 are tightly meshed together. Finally, the operator pulls out the cable head on the winding drum 2, starts the drive assembly 6, and the winding drum 2 can rotate at the set speed, thereby completing the unwinding of the cable. After the unwinding is completed, the unloaded winding drum 2 can be lowered from the lifting mechanism 3.

[0030] On the contrary, when the cable needs to be reeled in, the unloaded reel 2 is reinstalled in the above steps and loaded into the lifting mechanism 3, and then the drive assembly 6 is started in reverse to reel in the cable. After the reeling is completed, the fully loaded reel 2 is lowered from the lifting mechanism 3. Example 2

[0031] Example 2 discloses a cable retracting device that is further optimized and improved based on the technical solution in Example 1, and the similarities between it and Example 1 will not be described again.

[0032] Reference Figure 1 , Attachment Figure 2 and attached Figure 7In this embodiment 2, a uniform winding mechanism 7 is further provided on the retractable frame 1, and the uniform winding mechanism 7 includes a crossbeam 701 arranged across the reel 2 and the lifting mechanism 3, a linear groove 702 is opened in the crossbeam 701, and a reciprocating screw rod 703 is rotatably arranged in the linear groove 702, and one end of the reciprocating screw rod 703 extends out of the crossbeam 701 and is connected to the hydraulic telescopic shaft 4. The specific connection mechanism can adopt one of the transmission belt or chain transmission methods, so that the rotation of the reciprocating screw rod 703 can be synchronized with the rotation of the hydraulic telescopic shaft 4.

[0033] A screw hole block 704 is provided in the linear groove 702, so that the screw hole block 704 moves back and forth under the joint action of the reciprocating screw 703 and the linear groove 702, and finally a guide ring 705 for passing the cable is connected to the lower end of the screw hole block 704.

[0034] The above-mentioned design of the present embodiment 2 can synchronize the cable winding process with the reciprocating movement process of the guide ring 705, so that the cable can be wound evenly when being wound onto the winding drum 2, thereby improving the cable winding effect.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable retracting device for electric power construction, comprising a retracting frame and a reel, characterized in that: A lifting mechanism is rotatably arranged in the retractable frame, and the lifting mechanism comprises two lifting arms which are parallel and rotatably connected to the upper side plate of the retractable frame, one end of the two lifting arms extends out of the retractable frame, and the other end is commonly connected to a handle, a vertical limiting groove is arranged on the lifting arm, a limiting support block is connected in the vertical limiting groove through a spring, and a semicircular groove which is adapted to the upper cylinder shaft of the winding drum is arranged on the upper surface of the limiting support block, a hydraulic cylinder is connected to the lower end of the vertical limiting groove, a second piston is arranged in the hydraulic cylinder, and a second piston rod is connected between the second piston and the limiting support block; Hydraulic telescopic shafts aligned with the semicircular grooves are rotatably connected to the two side plates of the retractable frame, and a pipeline assembly for conveying hydraulic oil is connected between the hydraulic telescopic shaft and the hydraulic cylinder. A second toothed disk is provided at the inner end of the hydraulic telescopic shaft extending out of the retractable frame, and a first toothed disk that acts on the second toothed disk is provided on the two drum shafts of the reeling drum. A driving assembly for driving the hydraulic telescopic shaft is provided on the retractable frame.

2. A cable retracting and releasing device for electric power construction according to claim 1, characterized in that: The hydraulic telescopic shaft includes an outer sleeve shaft rotatably connected to the upper side plate of the retractable frame, a telescopic shaft that moves axially is limitedly inserted in the outer sleeve shaft, the second toothed disk is connected to the outer end of the telescopic shaft, a columnar hydraulic chamber is opened in the outer sleeve shaft, a first piston is arranged in the columnar hydraulic chamber, a first piston rod is arranged between the first piston and the telescopic shaft, and a liquid inlet end connected to the columnar hydraulic chamber is arranged at the outer end of the outer sleeve shaft.

3. A cable retracting and releasing device for electric power construction according to claim 2, characterized in that: The pipeline assembly comprises a hose connected to the lower end of the hydraulic cylinder, the end of the hose is connected to a hard pipe, and the end of the hard pipe is provided with a connecting sleeve which is sealingly and rotatably connected to the liquid inlet end.

4. A cable retracting and releasing device for electric power construction according to claim 2, characterized in that: The driving assembly comprises a driving motor and a storage battery arranged on the storage rack. The motor shaft and the outer sleeve shaft of the driving motor are both provided with transmission wheels, and a transmission member is arranged between the two transmission wheels.

5. A cable retracting and releasing device for electric power construction according to claim 1, characterized in that: The winding drum comprises a drum body, both ends of which are provided with drum shafts adapted to the semicircular grooves, sleeve shafts are inserted at the upper limit positions of the two drum shafts, and the first toothed disk is fixedly connected to the outer end of the sleeve shaft.

6. A cable retracting and releasing device for electric power construction according to claim 5, characterized in that: A ball is movably embedded on the inner wall of the semicircular groove on the upper surface of the limiting bracket.

7. A cable retracting and releasing device for electric power construction according to claim 1, characterized in that: The storage rack comprises a bottom plate and side plates, the two side plates are fixedly connected to the two ends of the bottom plate, and the lower surface of the bottom plate is provided with universal wheels.

8. A cable retracting and releasing device for electric power construction according to claim 7, characterized in that: Two bearings are arranged on the two side plates, and the two bearings are arranged in alignment one by one. The two hydraulic telescopic shafts are respectively rotatably arranged in the two aligned bearings. The two lifting arms are each provided with a convex shaft rotatably connected to another group of bearings.

9. A cable retracting and releasing device for electric power construction according to claim 1, characterized in that: A uniform winding mechanism is arranged in the retracting and unloading frame located above the lifting and unloading mechanism, and the uniform winding mechanism includes a fixed crossbeam, a linear groove is opened in the crossbeam, a reciprocating screw is rotatably arranged in the linear groove, and the end of the reciprocating screw is connected to the hydraulic telescopic shaft through a transmission mechanism, a screw hole block matching the reciprocating screw is arranged in the linear groove, and a guide ring is arranged at the lower end of the screw hole block.

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