Non-destructive cable omnidirectional delivery device

Abstract

The application discloses a kind of lossless cable omni-directional conveying device, in the use process, it can be compliant driven roller, driving roller, to driven roller, pass through the included angle shape between three rollers, so that the cable that passes constitutes arc or serpentine shape, complete the method of setting bend while conveying, realize the method of one-time laying cable, and the whole laying process cable isofacial, equal speed, according to predetermined serpentine bend one-bend, one-time laying forming, with linear velocity synchronous cable conveying, reach laying precision high, good effect, also can realize lossless laying.The design of driving roller makes that cable can also obtain a driving, equal speed rotary surface contact when passing bend, disperses the stress direction to cable local part, cooperates with the follow-up of support roller for supporting cable, can greatly reduce the friction of cable when passing bend, most effectively reaches the protection to cable surface, realizes the effect of lossless conveying.

Description

TECHNICAL FIELD

[0001] The present application relates to the power industry, high voltage cable laying technology field, specifically to a kind of lossless cable all-direction conveying device. BACKGROUND

[0002] The traditional cable laying system mainly uses manual laying experience, although relying on professional tools, but also need a lot of manpower to complete the laying of cable work. However, there are several defects in the manual laying process:

[0003] During the laying process of the cable, the stress condition of the cable cannot be monitored in real time, and the whole laying process is a black box operation, which is prone to problems such as excessive local stress and excessive tension during the laying process, especially at the bend. If the stress of the cable exceeds the standard value, it cannot be automatically warned, causing damage to the cable and equipment; When passing through the bend, the speed is different, the traction force and the speed are not matched, the conveyor cannot maintain the same speed, and the risk of cable damage is increased.

[0004] In the process of laying cable manually, when it is necessary to lay in a serpentine shape, it is often necessary to cooperate with an electric hoist to lift the local part, and the other end naturally hangs down to lay in a serpentine shape. On the one hand, it will lead to poor precision and large error in laying the serpentine shape, and on the other hand, it will press the outer wall of the cable during the lifting of the bend, which is easy to cause local wear and even damage to the cable. The whole process is time-consuming and labor-intensive, the error of the serpentine bend is large, which may cause damage to the cable and may also cause error in the length of the cable, resulting in waste;

[0005] The current cable laying has obvious defects in timeliness, safety, economy, convenience and wide applicability. There is a lack of a device system for quickly laying cables, and a lack of a device for one-time serpentine bending or a safe bending and precision-controllable bending laying device. SUMMARY

[0006] To solve the defects and deficiencies of the prior art, the present application provides a lossless cable all-direction conveying device, which is pre-installed on the turning path of the cable before laying, can make the shape of the passing cable arc-shaped to achieve the effect of turning conveying, or can realize one-time serpentine bending laying of the cable by continuously arranging multiple devices. The device does not need to use manual serpentine bending arrangement, has high efficiency and accurate bending, is convenient to arrange, realizes isohypse, constant speed and one-time serpentine shaping laying operation, and greatly improves the convenience and safety of the turning and serpentine bending laying operation during the cable laying process.

[0007] Specifically, the application is implemented as follows: a lossless cable all-direction conveying device, comprising: two bending arms, which are hingedly connected at the end heads; a telescopic mechanism, which is hingedly arranged at the opposite end heads of the two bending arms, can push the two bending arms to fold inward when extended, and can pull the two bending arms to open outward when retracted; an end head roller, which is vertically arranged at the outer end head of each bending arm; a central roller, which is vertically arranged at the hinged position of the two bending arms; and the two bending arms can adjust the opening and closing degree of the included angle between the end head roller and the central roller under the control of the telescopic mechanism, and the cable passes through the outside of the end head roller, the inside of the central roller and the outside of the other end head roller in sequence and turns or winds in a snake shape according to the opening and closing degree of the included angle.

[0008] Further, the end head roller is a driven roller, and the central roller is a powered driven roller, and the cable turns or winds in a snake shape under the running and conveying of the powered roller.

[0009] Further, the end head roller and the central roller are each provided with a transversely arranged supporting roller at the lower part of the cable passing direction, which is used for supporting and carrying the passing cable and rotating with the cable.

[0010] Further, the connecting end of the supporting roller is rotatably mounted on the bending arm with the connecting position as the axis, and can be adaptively adjusted in direction according to the direction of the cable.

[0011] Further, a same-direction extending hinged section is arranged at the middle part or the lower part of the middle part between the two bending arms, and the end heads of the hinged section are hingedly connected to each other, and the central roller is vertically arranged above the hinged position; and the two ends of the telescopic mechanism are hingedly mounted between the two ends of the bending arm in an angle-adjustable manner.

[0012] Further, the telescopic mechanism is a pneumatic telescopic device, a hydraulic telescopic device or an electric push rod, and has a stepless telescopic adjusting function of quantitative telescoping under linkage control.

[0013] Further, the diameter of the powered roller is greater than that of the driven roller, and the powered roller has an arc surface type with wide ends and a narrow middle part.

[0014] Further, a side pressure sensor, which can obtain the side pressure data of the passing cable in real time, is mounted on the powered roller or the driven roller of the all-direction conveying machine.

[0015] Further, the side pressure sensor is a radial pressure sensor.

[0016] Further, the lower end of the power roller is installed on the bottom of a semi-open installation plate, the rotating shaft of the upper end extends upward and is placed in the opening on the top of the installation plate, the radial pressure sensor is installed above the opening, the upper end of the rotating shaft penetrates into the radial pressure sensor, when the power roller is contacted by the cable, the cable extrusion drives the power roller to incline under pressure along the axial direction, the top end of the rotating shaft presses the radial pressure sensor, so that the current side pressure data of the cable is transmitted to the control terminal through the radial pressure sensor for monitoring.

[0017] The working principle of the present application is introduced: the omnidirectional conveyor in the present application is pre-installed according to the required serpentine laying path, the total control module can calculate the required distance of the serpentine according to the actual conditions of the cable to be laid, and then solve the opening and closing angle between the double bending arms of the omnidirectional conveyor, after the cable enters the omnidirectional conveyor, it can pass through the driven roller, the driving roller and then the driven roller, and the included angle shape between the three rollers, so that the passing cable forms a serpentine shape, completes the method of laying and bending at the same time, realizes the method of laying the cable at one time, and the whole laying process is isohypse, isovelocity, and one-time bending according to the predetermined serpentine bending, one-time laying and forming, synchronous cable conveying with linear velocity, high laying precision and good effect are achieved, and lossless laying is also achieved. The design of the driving roller enables the cable to obtain a driving and constant-speed rotating surface contact when passing through the bend, disperses the stress direction of the local cable, cooperates with the follow-up of the supporting roller for supporting the cable, greatly reduces the friction of the cable when passing through the bend, most effectively protects the surface of the cable, and realizes the effect of lossless conveying.

[0018] The beneficial effects of the present application are introduced: the omnidirectional conveyor of the system calculates the corresponding best serpentine laying parameters according to the information such as the conditions of the site layout and the cable parameters, converts the angle data required to be opened between the two bending arms of the bending laying machine into angle data, controls the included angle change between the two mutually hinged bending arms through the telescopic mechanism, accurately controls the bending degree of the cable, and one-time completes the laying of the standard serpentine bend, which has the characteristics of high precision, good laying effect and lossless bending; in the area where the cable needs to be laid in a serpentine shape, the omnidirectional conveyor with power output is used, the intermediate driving roller provides power, the stress concentration and friction of the cable at the bending part are reduced, thereby the probability of causing damage is reduced to the greatest extent, and the application of the side pressure sensor can obtain the stress state of the cable in the bending process in real time, so that feedback can be monitored in time once an abnormality occurs, thereby the effect of protecting the cable conveying is achieved, and the protection effect of lossless cable conveying is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1A main structure schematic diagram of a modular non-destructive disposable cable laying system of the present application;

[0020] Figure 2 A structure and a telescopic adjustment angle expanding schematic diagram of the omnidirectional conveyor of the present application;

[0021] Figure 3 A structure perspective view of the omnidirectional conveyor of the present application;

[0022] Figure 4 A schematic diagram of the omnidirectional conveyor of the present application in a serpentine bending laying state;

[0023] Figure 5 A process top view of the omnidirectional conveyor of the present application in a serpentine laying process;

[0024] Figure 6 A process top view of the omnidirectional conveyor of the present application in a turning process;

[0025] Figure 7 、 8 A structure schematic diagram of the omnidirectional conveyor of the present application in which a radial pressure sensor is installed on a driving roller.

[0026] Among them:

[0027] 1 driving frame,

[0028] 2 speed measuring device,

[0029] 3 support frame,

[0030] 4 conveyor,

[0031] 5 omnidirectional conveyor, 51 bending arm, 52 telescopic mechanism, 53 driven roller, 54 driving roller, 55 hinged section, 56 support roller, 57 mounting plate, 58 rotating shaft, 59 radial pressure sensor;

[0032] 6 traction machine. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below in combination with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0034] The embodiment 1 is a lossless cable omnidirectional conveying device, comprising: two bending arms 51 which are hingedly connected at the end; a telescopic mechanism 52 which is hingedly arranged at the opposite ends of the two bending arms 51, the telescopic mechanism 52 can push the two bending arms 51 to fold inward, and the telescopic mechanism 52 can pull the two bending arms 51 to open outward after being retracted; a vertical end roller is arranged at the outer end of each bending arm 51; a central roller is vertically arranged at the hinged position of the two bending arms 51; the two bending arms 51 can adjust the opening and closing degree of the included angle between the end roller and the central roller under the control of the telescopic mechanism 52, and the cable passes through the outside of the end roller, the inside of the central roller and the outside of the other end roller in sequence, and turns or bends in a snake shape according to the opening and closing degree of the included angle. In actual use, the path of the cable is pre-installed according to the need of the snake-shaped laying, the total control module can calculate the distance required by the snake shape according to the actual conditions of the cable to be laid, and then calculate the opening and closing angle between the two bending arms 51 of the omnidirectional conveyor 5, the opening and closing angle can be calculated to correspond to the snake length, the snake bending degree and other information through the telescopic length of the telescopic mechanism 52, the length of the bending wall and the hinged initial angle, the calculation process belongs to the prior art, and the telescopic amount of the telescopic mechanism 52 is also a conventional means, so it will not be described in detail. After the telescopic mechanism 52 is telescoped to the position and the bending arm 51 is in place, the cable can pass through the included angle structure between the driven roller 53, the driving roller and the driven roller 53 in sequence after the cable enters the omnidirectional conveyor 5, so that the passing cable forms a snake shape, and the method of laying and conveying at the same time is completed. During the process of cable laying, the cable laying needs and relevant regulations require snake-shaped laying or turning conveying, and the turning or snake-shaped area is prone to stress concentration. Through the arrangement of the omnidirectional conveyor 5, the vertical arrangement of the rollers can realize guiding to adjust the turning or snake-shaped laying path of the cable.

[0035] Further, the end roller is a driven roller 53, and the central roller is a driving roller, and the cable runs under the operation of the driving roller 54, and the passing cable turns or bends in a snake shape.

[0036] The driven roller 53 and / or the driving roller are composed of two mutually perpendicular supporting rollers 56 and guide rollers; the supporting rollers 56 are usually horizontally placed to provide self-weight support for the cable, and the guide rollers are vertically placed to provide guiding, limiting and transmission for the arc bending of the cable; the connecting end of the supporting roller 56 is rotatably installed on the bending arm 51 with the connecting position as the axis, and can adaptively adjust the direction according to the direction of the cable. The friction force on the surface of the cable when passing through can be further reduced, so as to achieve the effect of protecting the cable;

[0037] A hinge section 55 is arranged between the bending arms 51 at the middle or lower middle part, and the hinge section 55 is hingedly connected at the ends thereof; such design can make the stretching and retracting of the stretching and retracting mechanism 52 bring greater angle transformation between the bending arms 51, and the bending arms 51 are double-layer structures formed by pipes, the spacing between the double-layer pipes is adjustable, and devices such as reducers can be installed therebetween; the overall stress is balanced and stable, the angle adjustment range is large, and the device is easy to control and calculate.

[0038] Further, the stretching and retracting mechanism 52 is a pneumatic stretching and retracting device, a hydraulic stretching and retracting device or an electric push rod, and has a stepless stretching and retracting adjustment function of quantitative stretching under linkage control. Preferably, a steering curvature scale disc can be installed at the hinge, which is used for comparison of the scale disc by using the opening angle of the bending arms 51 during adjustment, so as to have a field reference effect on curvature adjustment; on the other hand, the relationship between the stretching and retracting degree and the turning curvature can be calculated by quantifying the stretching and retracting degree of the stretching and retracting device, so as to achieve the effect of accurately controlling the curvature by controlling the stretching and retracting degree.

[0039] The diameter of the driving roller is greater than that of the driven roller 53, the driving roller is arc-shaped with wide ends and narrow middle part, can provide more contact area with the surface of the cable, cooperate with the power output, further reduce the stress concentration of the cable when turning, disperse the stress, and further protect the safety and damage-free turning of the cable during the bending process; the connecting end of the supporting roller 56 is rotatably installed on the bending arm 51 with the connecting position as the axis, can swing with the movement direction of the cable while providing support for the cable, so as to reduce the friction resistance to the cable as much as possible under different angle curvatures, and prevent damage.

[0040] Preferably, as shown in Figure 7 , 8 , the transmission end of the power roller 54 of the omnidirectional conveyor 5 is downward, the lower end of the power roller 54 is installed on the bottom of a semi-open mounting plate 57 through a shaft sleeve, the rotating shaft 58 at the upper end extends upward by a length to be arranged in the opening at the top of the mounting plate 57, the radial pressure sensor 59 is installed above the opening, the upper end of the rotating shaft 58 penetrates into the radial pressure sensor 59, when the power roller 54 is contacted by the cable, the power roller 54 is inclined under pressure along the axial direction due to the extrusion of the cable, so that the upper end of the rotating shaft 58 presses the radial pressure sensor 59, thereby transmitting the current side pressure data of the cable to the control terminal for monitoring, obtaining the side pressure value of the power roller 54, better monitoring the pressure data generated by the power roller 54 to the cable, and stopping the machine to protect the safety of the entire cable when the pressure data is too high and the conveying force of the cable is abnormal during turning, and realizing the effect of real-time state supervision for the bending point with relatively concentrated stress.

[0041] Preferably, the omnidirectional conveyor 5 is also connected with a sub-control box, the conveying speed data of the omnidirectional conveyor 5, the opening and closing angle data of the bending arm 51, and the side pressure data are transmitted to the sub-control box in real time, and then transmitted to the general control module through the sub-control box, the sub-control box can independently control the start and stop control of a single omnidirectional conveyor 5; and the general control module can control the shutdown of the entire cable laying system, can set the conveying speed of the conveyor, the bending angle data of the omnidirectional conveyor 5 according to the preset data required by the on-site cable laying, and can also immediately stop for protection when an unexpected situation or abnormality occurs; the unexpected situation or abnormality includes over-drawing, over-pressure, no start of the equipment, and no operation of the equipment.

[0042] The device solves the problem that the cable may be damaged in the process of artificial serpentine bending and lifting on the support in the previous high-voltage power cable laying method, the system realizes lossless protection of the cable in the bending link of high-voltage cable laying, sets and records, monitors and controls the speed, side pressure, tension and cable bending diameter and other parameters of each device in the laying process in real time, so as to realize fast, safe and lossless laying of the cable and process data recording, and can meet the operation of one-time serpentine bending forming laying of the cable design installation fixed position and the like.

[0043] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation of the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all variations and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. A non-destructive cable omnidirectional delivery device, characterized by, It comprises: Two bending arms, which are hingedly connected at their ends; A telescopic mechanism, which is hingedly arranged at the opposite ends of the two bending arms, and can push the two bending arms inward when extended, and pull the two bending arms outward when retracted; Two end rollers, which are vertically arranged at the outer ends of the two bending arms respectively; A power roller, which is vertically arranged at the hinged position of the two bending arms; The two bending arms can adjust the opening and closing degree of the included angle between the end rollers and the power roller under the control of the telescopic mechanism, and the cable passes through the outside of one end roller, the inside of the power roller, and the outside of the other end roller, and turns or bends according to the opening and closing degree of the included angle; The end rollers and the power roller are each provided with a horizontally arranged supporting roller at the lower part in the passing direction of the cable, which is used to support and carry the passing cable and rotate with the cable; The connecting end of the supporting roller is rotatably mounted on the bending arm with the connecting position as the axis, and can be adaptively adjusted according to the direction of the cable; The power roller or the end roller is provided with a side pressure sensor, which can obtain the side pressure data of the passing cable in real time; the side pressure sensor is a radial pressure sensor; The lower end of the power roller is mounted on the bottom of a semi-open mounting plate, the upper end of the rotating shaft extends upward and is arranged in the opening on the top of the mounting plate, the radial pressure sensor is mounted above the opening, and the upper end of the rotating shaft penetrates into the radial pressure sensor; when the power roller is contacted by the passing cable, the power roller will be inclined under pressure along the axial direction due to the extrusion of the cable, so that the upper end of the rotating shaft presses the radial pressure sensor, thereby transmitting the current side pressure data of the cable to the control terminal for monitoring.

2. The non-destructive cable omni-directional delivery device of claim 1, wherein, The end roller is a driven roller, and the power roller is a powered roller; the passing cable turns or bends according to the running and conveying of the power roller.

3. The non-destructive cable omni-directional delivery device of claim 1 or 2, wherein, A hinged section is arranged between the two bending arms at the middle or lower part of the middle, and the ends of the hinged section are hingedly connected; the power roller is vertically arranged above the hinged position; The two ends of the telescopic mechanism are hingedly mounted between the two ends of the bending arms in an angle-adjustable manner.

4. The non-destructive cable omni-directional delivery device of claim 1 or 2, wherein, The telescopic mechanism is a pneumatic telescopic device, a hydraulic telescopic device or an electric push rod, which has a stepless telescopic adjustment function under linkage control.

5. The non-destructive cable omni-directional delivery device of claim 1 or 2, wherein, The diameter of the power roller is larger than that of the driven roller, and the power roller has an arc-shaped surface with wide ends and a narrow middle.

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