A cable transfer device

Abstract

The utility model belongs to the installation field of cable, specifically provides a cable transmission device. The device includes base, is equipped with the cable feeding mechanism on the base, and the cable feeding mechanism includes driving rotator and driven rotator, and is equipped with the rotary driver of driving its rotation for driving rotator, is equipped with the radial adjustment mechanism and / or is equipped with the radial adjustment mechanism of driving its radial movement for driven rotator for driving rotator between driving rotator and driven rotator, to supply cable to enter and the friction of driving rotator and driven rotator rotation with cable size meets forward cable transmission, is equipped with the radial adjustment mechanism of driving its radial movement for driving rotator and / or is equipped with the radial adjustment mechanism of driving its radial movement for driven rotator, to adjust driving rotator and driven rotator each other close or far apart according to cable specification, change the radial interval. The utility model can change the radial interval between driving rotator and driven rotator through the radial adjustment mechanism, so that different specifications of cable can be reliably clamped and transmitted, and then be used for a variety of specifications of cable.

Description

Technical Field

[0001] This utility model belongs to the field of cable installation, and in particular relates to a cable transmission device. Background Technology

[0002] In tunnel excavation and coal and metal mine roadway excavation, the extension and arrangement of high-voltage cables is a crucial link in ensuring continuous power supply to equipment such as tunnel boring machines (TBMs), cantilever tunneling machines, and roadheader-anchor machines. In such projects, the length of high-voltage cables is typically over 500 meters. In actual projects, the cable specifications (diameter, voltage rating, sheath material, etc.) used for different equipment are not consistent.

[0003] Currently, during construction, the extension and installation of high-voltage cables mainly relies on manual dragging or simple auxiliary equipment (such as pulleys and fixed drums). Due to the harsh environment inside the tunnel, the labor intensity of manual cable laying is extremely high and there are safety hazards. Furthermore, the existing drums and pulleys are only suitable for single-specification cables and cannot flexibly handle different specifications of cables, resulting in the need to frequently change equipment during construction, which is inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a cable transmission device to solve the technical problem that existing cable transmission devices are difficult to transmit cables of different specifications.

[0005] To achieve the above objectives, the technical solution of the cable transmission device provided by this utility model is as follows: A cable conveying device includes a base with a cable feeding mechanism. The cable feeding mechanism includes a driving rotating body and a driven rotating body. The driving rotating body is equipped with a rotary driver to drive its rotation. A radial distance is provided between the driving and driven rotating bodies to allow the cable to enter, and the friction between the driving and driven rotating bodies and the cable during rotation is sufficient to convey the cable forward. The driving rotating body is equipped with a radial adjustment mechanism to drive its radial movement, and / or the driven rotating body is equipped with a radial adjustment mechanism to drive its radial movement, so as to adjust the driving and driven rotating bodies to move closer or further apart according to the cable specifications, thereby changing the radial distance.

[0006] As a further improvement, the active rotating body has two tapered surfaces in the axial direction with diameters gradually increasing from the middle to both ends, so that the outer periphery of the active rotating body forms a V-shaped positioning groove for positioning the cable.

[0007] As a further improvement, a flexible protective strip extending along the generatrix of the conical surface is fixed on the conical surface. Multiple flexible protective strips are arranged, with adjacent two strips spaced at an included angle.

[0008] As a further improvement, the flexible protective strip has a wavy protrusion extending along the length of the flexible protective strip on the side opposite to the conical surface.

[0009] As a further improvement, the wavy protrusion has a groove at the center of the flexible protective strip in the width direction.

[0010] As a further improvement, the driven rotating body has a centrally located cylindrical section and tapered sections at both ends of the cylindrical section in the axial direction. The diameter of the tapered sections is smaller than that of the cylindrical section, so that the outer periphery of the driven rotating body forms a frustum shape that matches the V-shaped positioning groove formed on the outer periphery of the active rotating body.

[0011] As a further improvement, the outer periphery of the cylindrical section is provided with a protruding tooth-shaped structure.

[0012] As a further improvement, a front guide rotating body is installed on the base at the front side of the cable feeding mechanism and a rear guide rotating body is installed at the rear side. The outer circumferential surfaces of the front and rear guide rotating bodies are used to roll and support the transmitted cable.

[0013] As a further improvement, a correction mechanism is provided on the base, one before the front guide rotating body and the other after the rear guide rotating body. The correction mechanism includes a pair of left and right correction arms that can clamp the cable, so as to correct the cable posture by pushing the cable through the movement of the left and right correction arms.

[0014] As a further improvement, the ends of the left and right correction arms are equipped with cable push plates, which are arc-shaped or V-shaped structures.

[0015] As a further improvement, a correction mechanism is provided on the base on both the front and rear sides of the cable feeding mechanism. The correction mechanism includes a pair of left and right correction arms that can clamp the cable, so as to correct the cable posture by pushing the cable movement through the movement of the left and right correction arms.

[0016] As a further improvement, the ends of the left and right correction arms are equipped with cable push plates, which are arc-shaped or V-shaped structures.

[0017] This utility model is a pioneering invention, and its beneficial effects are: when the cable transmission device provided by this utility model is implemented, the active rotating body and the driven rotating body configured can clamp the cable, the active rotating body can rotate actively, and the driven rotating body plays the role of cooperating with the active rotating body to bite the cable, and the friction force generated can transmit the cable from back to front.

[0018] To address the problem of transporting cables of different specifications, this invention can change the radial distance between the active rotating body and the driven rotating body through a radial adjustment mechanism, so that cables of different specifications can be reliably clamped and transported, thus making it applicable to cables of various specifications. Attached Figure Description

[0019] Figure 1This is an isometric view of an embodiment of the cable transmission device of this utility model; Figure 2 This is a top view of an embodiment of the cable transmission device of this utility model; Figure 3 This is a front view of an embodiment of the cable transmission device of this utility model; Figure 4 This is a side view of an embodiment of the cable transmission device of this utility model; Figure 5 for Figure 1 Axonometric view of the central base; Figure 6 for Figure 1 Axonometric view of the active rotating body; Figure 7 for Figure 1 Top view of the active rotating body; Figure 8 for Figure 7 Axonometric view of the flexible protective strip; Figure 9 for Figure 1 Schematic diagram of the installation method of the driven rotating body; Figure 10 for Figure 1 Isometric view of the center correction mechanism; Figure 11 for Figure 1 Front view of the center correction mechanism; Figure 12 for Figure 1 Axonometric drawing of the guide mechanism; Figure 13 for Figure 1 Front view of the central guide mechanism.

[0020] Explanation of reference numerals in the attached figures: 1. Base; 2. Cable feeding mechanism; 3. Guiding mechanism; 4. Correction mechanism; 5. Correction detection mechanism; 101. Telescopic seat; 102. Basic seat; 103. Motor mounting seat; 104. Guide mounting seat; 105. Correction mounting seat; 106. Correction detection mounting seat; 201. Active rotating body; 202. Rotary actuator; 203. Driven rotating body; 204. Rotating frame; 205. Linear actuator; 2011. Flexible protective strip; 301. Guide rotating body; 302. Guide bracket; 401. Correction bracket; 402. Correction arm; 403. Cable push plate. Detailed Implementation

[0021] To provide a transmission device applicable to various cable specifications, the basic technical concept of this utility model is to use two rotating bodies rotating in opposite directions to bite the cable and use the tangential friction force generated by the biting to push the cable forward. At the same time, the two rotating bodies are configured to be able to approach or move away from each other radially, so that cables of different specifications can be reliably bitten and transmitted, and there is no need to equip different transmission devices for different cable specifications during construction.

[0022] The present invention will be further described in detail below with reference to some embodiments.

[0023] A cable transmission device, as a whole, is as follows: Figures 1-4 As shown, the device includes a base 1, which serves as the mounting base for all parts of the conveying device. To enable cable conveying, a cable feeding mechanism 2 is provided on the base 1. The cable feeding mechanism 2 includes a driving rotating body 201 (which can be understood as a cable feeding wheel) and a driven rotating body 203 (which can be understood as a cable pressing wheel). The driving rotating body 201 is a rotating body that can actively rotate. A rotary actuator 202, such as a motor, pneumatic motor, or hydraulic motor, is provided to drive the driving rotating body 201. Of course, a motor mounting bracket 103 is provided on the base 1 for proper installation of the rotary actuator 202. The rotation axes of the driven rotating body 203 and the driving rotating body 201 are parallel and extend horizontally. The driven rotating body 203 is a rotating body that rotates along with the cable during the cable conveying process. Both the driving rotating body 201 and the driven rotating body 203 can be solid cylindrical structures or cylindrical structures with a central hole; their types are not specifically limited here.

[0024] During cable transmission, the cable can be fed between the driving rotating body 201 and the driven rotating body 203. Generally, the transmission direction of the cable can be understood as transmission from back to front. Assuming the cable is traveling from... Figure 3 The cable is transmitted from right to left, with the left side being the forward direction. The active rotating body 201 rotates counterclockwise, providing friction to the left. The friction between the cable and the active rotating body 201 also points to the left, causing the driven rotating body 203 to rotate clockwise. During this process, the driven rotating body 203 works in conjunction with the active rotating body 201 to engage the cable. In other words, the magnitude of the friction between the active rotating body 201 and the driven rotating body 203 and the cable should be sufficient for the cable to be transmitted forward normally. The magnitude of the friction is related to the pressure exerted by the active rotating body 201 and the driven rotating body 203 on the cable, and the pressure is related to the radial distance between the active rotating body 201 and the driven rotating body 203.

[0025] For the cable feeding mechanism 2, in order to meet the cable transmission operations of different specifications, the radial distance between the active rotating body 201 and the driven rotating body 203 of the cable feeding mechanism 2 should be adjustable and changeable. On the one hand, it can meet the needs of different specifications of cables entering the distance, and on the other hand, it can match the friction force required for the transmission of different specifications of cables.

[0026] Adjusting the radial distance between the driving rotating body 201 and the driven rotating body 203 means that the driving rotating body 201 and the driven rotating body 203 can move closer to each other and further away. That is, a radial adjustment mechanism that drives the radial movement of at least one of the driving rotating body 201 and the driven rotating body 203 can be configured. In other words, the cable feeding mechanism 2 is configured with a radial adjustment mechanism for driving the radial movement of the driving rotating body 201 and / or a radial adjustment mechanism for driving the radial movement of the driven rotating body 203.

[0027] Specifically, in some feasible implementations, such as Figures 1-4 and Figure 9 As shown, the driven rotating body 203 is equipped with a radial adjustment mechanism, and the driving rotating body 201 is rotatably mounted on the base 1. More specifically, the radial adjustment mechanism includes a linear actuator 205, which refers to an actuator capable of outputting linear motion, such as an electric actuator, a pneumatic cylinder, or a hydraulic cylinder. The output end of the linear actuator 205 is fixed to a rotating frame 204, and the driven rotating body 203 is rotatably mounted on the rotating frame 204, which can be assembled using rolling bearings.

[0028] Since the driven rotating body 203 is not equipped with a rotary driver 202, the connected structure is relatively simple, and it is simpler and more convenient to configure the radial adjustment mechanism on the driven rotating body 203.

[0029] When transmitting cables, the transmitting device can control the radial adjustment mechanism according to the corresponding cable specifications, thereby driving the driven rotating body 203 to move radially, so as to change the radial distance between the driving rotating body 201 and the driven rotating body 203, and meet the transmission requirements of cables of different specifications.

[0030] Preferably, the linear actuator 205 of the radial adjustment mechanism is a cylinder. Since gas can be compressed, microscopically, this allows the active rotating body 201 and the driven rotating body 203 to form an "elastic" engagement with the cable, preventing excessive engagement force from damaging the cable's insulation. It is easy to understand that controlling the cylinder's movement can be achieved by controlling the direction and amount of air entering the cylinder, specifically by controlling the corresponding valves and valve groups. This is something that those skilled in the art can do after consulting pneumatic reference books.

[0031] Regarding the cable feeding mechanism 2, in some feasible preferred embodiments, such as Figures 1-4 , Figure 6 and Figure 7 As shown, the driving rotating body 201 has two conical surfaces on its axial direction, with the diameter gradually increasing from the middle part to both ends, so that a V-shaped positioning groove is formed on the outer periphery of the driving rotating body 201, and the V-shaped positioning groove functions to position the cable.

[0032] This preferred embodiment optimizes the structure of the driving rotating body 201. Compared with the case where the outer periphery of the driving rotating body 201 is a cylindrical surface, the V-shaped positioning groove formed on the outer periphery of the driving rotating body 201 in this embodiment can maintain the centering property during cable transmission.

[0033] To ensure that the driven rotating body 203 can have a large contact area for gripping cables when transmitting cables of different specifications, correspondingly, in a more preferred embodiment, as shown in Figures 1-4 and Figure 9 As shown, the driven rotating body 203 has a centered cylindrical section and conical sections located at both ends of the cylindrical section in its axial direction. The diameter of the conical section is smaller than that of the cylindrical section, so that the outer periphery of the driven rotating body 203 forms a frustum shape adapted to the V-shaped positioning groove on the outer periphery of the driving rotating body 201. When transmitting cables of different specifications, the driving rotating body 201 and the driven rotating body 203 move closer to or farther from each other, but the shapes of their outer peripheries are still adapted, which can ensure the cable pressing and transmission effect.

[0034] More preferably, the outer periphery of the cylindrical section of the driven rotating body 203 is provided with a protruding tooth-shaped structure, so that a more stable gripping structure can be formed when transmitting the cable.

[0035] In some preferred embodiments, as shown in Figures 1-4 , Figure 6 and Figure 7 As shown, flexible protective strips 2011 (for example, rubber strips) are fixed on the conical surfaces of the driving rotating body 201. The flexible protective strips 2011 extend along the generatrix direction of the conical surfaces, and a plurality of them are arranged, with a set included angle between two adjacent flexible protective strips 2011. For example, when there are four flexible protective strips 2011, the flexible protective strips 2011 are arranged in an overall "X" shape, and when there are six flexible protective strips 2011, the flexible protective strips 2011 are arranged in an overall asterisk shape.

[0036] By configuring the flexible protective strips 2011, in this preferred embodiment, when transmitting the cable, it can protect the insulating layer on the outer layer of the cable, and at the same time can prevent the driving rotating body 201 from slipping.

[0037] More preferably, as shown in Figure 6 and Figure 8As shown, the flexible protective strip 2011 has a wavy protrusion on the side opposite to the conical surface, which extends along the length of the flexible protective strip 2011. This makes the flexible protective strip 2011 easier to compress and deform when it comes into contact with the cable, providing better protection and anti-slip effect.

[0038] Furthermore, such as Figure 6 As shown, the wavy protrusion of the flexible protective strip 2011 has a groove at the center of its width direction. The groove provides further deformation space for the wavy protrusion to deform under pressure, further improving the protection and anti-slip effect.

[0039] Considering that the cable may deviate or bend during transmission, in a preferred embodiment, a correction mechanism 4 can be provided on the base 1 on the front and rear sides of the cable feeding mechanism 2 respectively. The correction mechanism 4 on the front side can be defined as the front correction mechanism, and the correction mechanism 4 on the rear side can be defined as the rear correction mechanism. In other words, the rear side can be understood as the incoming side, and the front side can be understood as the outgoing side. The front correction mechanism is the outgoing correction mechanism, and the rear correction mechanism is the incoming correction mechanism.

[0040] The function of the correction mechanism 4 is to correct the misaligned cable, specifically, as follows: Figures 1-4 , Figure 10 and Figure 11 As shown, the cable alignment mechanism 4 includes alignment arms 402, which are arranged in pairs and can move laterally to clamp the cable. For the conveying device, the cable is conveyed forward and backward as defined above, and the up and down directions are also clearly defined. Therefore, the lateral direction is the left and right direction. The two alignment arms 402 are the left alignment arm and the right alignment arm, respectively. Both the left and right alignment arms can move left and right to correct the cable conveying posture. For example, if the cable deviates to the left, the left alignment arm can extend to push the cable to the right, and correspondingly, the right alignment arm retracts to the right.

[0041] Preferably, such as Figure 10 and Figure 11 As shown, a cable pusher plate 403 is provided at the end of the correction arm 402. The cable pusher plate 403 is not flat; it can be an arc-shaped plate structure as shown in the figure, or a V-shaped plate structure, with the opening facing the cable. In this way, when pushing the cable to move for correction, it can clamp and position the cable, which helps to prevent the cable from shifting up and down.

[0042] In order to obtain the cable offset in real time, the two correction mechanisms 4 are respectively equipped with correction detection mechanisms 5, that is, corresponding to the front correction detection mechanism and the rear correction detection mechanism. The correction detection mechanism 5 is used to detect the cable offset at the current position. The correction mechanism 4 can correct the cable transmission posture according to the cable offset detected by the correction detection mechanism 5.

[0043] Preferably, such as Figures 1-4 and Figure 11 As shown, the base 1 includes a base 102, with telescopic seats 101 at both the front and rear ends of the base 102. The telescopic seats 101 can be telescopically adjusted (i.e., telescopically moved) relative to the base 102. The front and rear correction detection mechanisms 5 are respectively fixed on the telescopic seats 101 at the front and rear ends of the base 102. Since the allowable offset of cables of different specifications is not the same, the telescopic seats 101 can be moved according to the cable specifications, thereby changing the distance between the correction detection mechanism 5 and the correction mechanism 4, thus improving the accuracy of the correction detection mechanism 5 in detecting the offset of different cable specifications.

[0044] Regarding the cable offset detection mechanism 5, in some embodiments, a reflective photoelectric sensor can be used to detect the received photoelectric signal and calculate the cable offset. Specifically, the cable offset detection mechanism 5 includes a support, which serves as a fixed base, and a reflective photoelectric sensor and a receiver are mounted on the support.

[0045] Before transmitting the cable, the correction detection mechanism 5 can be calibrated to set a centering signal for different cable specifications, that is, to set the signal when the cable is transmitted in an optimal posture. The appropriate offset range, i.e. the dead zone range, is preset according to different cables. When the cable offset exceeds the dead zone, the correction mechanism 4 is activated to correct the cable.

[0046] It should be noted that in some other embodiments, the cable offset detection mechanism 5 can also be a machine vision-based detection mechanism, which captures cable image information in real time and then analyzes and judges the current cable offset. However, it should be noted that the cost of machine vision detection mechanisms is currently relatively high.

[0047] To further improve the stability of cable transmission, guide mechanisms 3 are installed on the base 1 at the front and rear sides of the cable feeding mechanism 2, respectively. Figure 12 and Figure 13 As shown, the guiding mechanism 3 includes a guide bracket 302 and a guide rotating body 301. The guide rotating body 301 is rotatably mounted (and can be equipped with a rolling bearing) on ​​the guide bracket 302, which is mounted on the base 1. The guide rotating body 301 located on the front side of the guiding mechanism 3 can be defined as the front guide rotating body, and the guide rotating body 301 located on the rear side of the guiding mechanism 3 can be defined as the rear guide rotating body. The function of the guide rotating body 301 is to guide the cable conveying and provide support for the cable. That is, when conveying the cable, the outer peripheral surface of the guide rotating body is used to roll and support the conveyed cable.

[0048] Based on the fact that the cable feeding mechanism 2 is equipped with two front and rear guide rotating bodies 301 on both sides, such as Figures 1-4As shown, the front and rear correction mechanisms 4 can be respectively set before the front guide rotating body and after the rear guide rotating body. That is to say, the correction mechanisms 4 are located at both ends of the entire conveying process of the conveying device.

[0049] To facilitate the installation of various mechanisms, such as Figure 5 As shown, guide fixing seat 104, correction fixing seat 105 and correction detection fixing seat 106 are respectively provided at appropriate positions on the base 1, which are used to fix guide mechanism 3, correction mechanism 4 and correction detection mechanism 5 respectively. Each fixing seat can be provided with an upward-facing insertion hole, and each mechanism is provided with a plug rod that can be inserted into the fixing seat to achieve quick plug-in fixing.

[0050] In addition, to facilitate the flexible movement of the conveyor, wheels and handles can be installed on the base 1, allowing workers to push the conveyor to move in a flat space during construction.

[0051] Of course, depending on the operating conditions, in some cases, the base 1 can also be fixed to the tunnel wall.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cable transmission device, characterized in that, The device includes a base, on which a cable feeding mechanism is provided. The cable feeding mechanism includes a driving rotating body and a driven rotating body. The driving rotating body is equipped with a rotary driver to drive its rotation. A radial distance is provided between the driving and driven rotating bodies to allow the cable to enter. The friction between the driving and driven rotating bodies and the cable when they rotate is sufficient to transmit the cable forward. The driving rotating body is equipped with a radial adjustment mechanism to drive its radial movement, and / or the driven rotating body is equipped with a radial adjustment mechanism to drive its radial movement, so as to adjust the driving and driven rotating bodies to move closer or further apart according to the cable specifications, thereby changing the radial distance.

2. The cable transmission device according to claim 1, characterized in that, The active rotating body has two tapered surfaces in the axial direction that gradually increase in diameter from the middle to both ends, so that the outer periphery of the active rotating body forms a V-shaped positioning groove for positioning the cable.

3. The cable transmission device according to claim 2, characterized in that, A flexible protective strip is fixed on the conical surface, extending along the generatrix of the conical surface. Multiple flexible protective strips are arranged, with adjacent two strips spaced at an included angle.

4. The cable transmission device according to claim 3, characterized in that, The flexible protective strip has a wavy protrusion extending along the length of the flexible protective strip on the side opposite to the conical surface.

5. The cable transmission device according to claim 4, characterized in that, The wavy protrusion has a groove at the center of the width direction of the flexible protective strip.

6. The cable transmission device according to any one of claims 2-5, characterized in that, The driven rotating body has a central cylindrical section and tapered sections at both ends of the cylindrical section in the axial direction. The diameter of the tapered sections is smaller than that of the cylindrical section, so that the outer periphery of the driven rotating body forms a frustum shape that matches the V-shaped positioning groove formed on the outer periphery of the active rotating body.

7. The cable transmission device according to claim 6, characterized in that, The outer circumference of the cylindrical section is provided with a protruding tooth-shaped structure.

8. The cable transmission device according to any one of claims 1-5, characterized in that, A front guide rotating body is installed on the front side of the cable feeding mechanism on the base, and a rear guide rotating body is installed on the rear side. The outer circumferential surfaces of the front and rear guide rotating bodies are used to roll and support the transmitted cable.

9. The cable transmission device according to claim 8, characterized in that, Correction mechanisms are provided on the base, one before the front guide rotating body and the other after the rear guide rotating body. The correction mechanisms include a pair of left and right correction arms that can clamp the cable, so as to correct the cable posture by pushing the cable through the movement of the left and right correction arms.

10. The cable transmission device according to claim 9, characterized in that, The ends of the left and right correction arms are equipped with cable push plates, which are arc-shaped or V-shaped structures.

11. The cable transmission device according to any one of claims 1-5, characterized in that, On the base, there are correction mechanisms on both the front and rear sides of the cable feeding mechanism. The correction mechanism includes a pair of left correction arms and right correction arms that can clamp the cable, so as to correct the cable posture by pushing the cable through the movement of the left and right correction arms.

12. The cable transmission device according to claim 11, characterized in that, The ends of the left and right correction arms are equipped with cable push plates, which are arc-shaped or V-shaped structures.

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