Unequal-diameter cable arrangement device for take-up and pay-off device

Abstract

The utility model provides an unequal-diameter cable arrangement device for a take-up and pay-off device, which comprises a base, a guide polish rod, a bidirectional lead screw, a movable rail assembly and a cable arrangement motor, the movable rail assembly comprises a cable arrangement port, and a left limiting roller and a right limiting roller are symmetrically arranged on two sides of the cable arrangement port. The upper ends and the lower ends of the left limiting roller and the right limiting roller are connected with extension springs correspondingly, and the left limiting roller and the right limiting roller can get close to each other or get away from each other. And the unequal-diameter cables pass through the interior of the cable arrangement port. According to the utility model, the two limiting rollers can be close to or far away from each other through the extension spring, and the distance between the two limiting rollers is controlled, so that when the limiting rollers are extruded by cables with different diameters, the sensors can be triggered, and the cables with different diameters can be distinguished; and the rotating speed of the cable arrangement motor is adjusted to ensure that the unequal-diameter cables are orderly wound on the surface of the winding drum, so that the orderly cable arrangement reliability and the working efficiency of continuous cable arrangement can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable arrangement devices, and in particular to a cable arrangement device for cables of unequal diameters used in a retractable device. Background Art

[0002] When the retracting and releasing device is retracting and releasing cables of unequal diameters, the speed of the cable arrangement screw rod must be changed when the cable is switched to match the change in the winding spacing of the unequal diameter cables on the drum. On the manned installation platform, the conversion of unequal diameter cables at the cable outlet is completely determined by the operator visually and manually stopped. There is a certain judgment error and it affects the continuous working efficiency of the retracting and releasing device. On the unmanned installation platform, the cable conversion position is mainly determined by recording the release length value of the unequal diameter cables respectively through the drum encoder, and the change in the winding spacing of the unequal diameter cables is adapted by changing the speed of the cable arrangement screw rod.

[0003] The existing Chinese patent with publication number CN104627886A discloses an automatic cable arrangement device and an automatic cable arrangement method for cable arrays of various diameters on a winch. The automatic cable arrangement device includes a base installed on the winch, a lead screw and a light rod connected between the two bases, and a movable rail seat installed on the lead screw. The lead screw is connected to a servo motor provided with a lead screw encoder. There are limit switches at both ends of the lead screw. The limit switches and the lead screw encoder are respectively connected to a servo motor drive controller connected to the servo motor. The drum on the winch is connected to a variable frequency motor provided with a drum encoder. The drum encoder is connected to a variable frequency motor drive controller connected to the variable frequency motor. In this scheme, since there is a certain error in the encoder identifying the length of multi-layer and multi-turn cables, the cable conversion position judgment will lag or advance, resulting in large local gaps or stacking in the cable winding.

[0004] Therefore, the inventor believes that it is necessary to provide a cable arrangement device for cables of unequal diameters for a retractable device, which can distinguish cables of different diameters through a simple structure, thereby improving the reliability of orderly cable arrangement and the work efficiency of continuous cable arrangement. Utility Model Content

[0005] In view of the defects in the prior art, the purpose of the utility model is to provide a cable arrangement device for cables of unequal diameters for a retractable device.

[0006] According to the utility model, a cable arrangement device for unequal-diameter cables for a retractable device includes: a base, a guide light rod, a bidirectional lead screw, a movable rail assembly, and a cable arrangement motor. The guide light rod is mounted on the base, the bidirectional lead screw is movably mounted on the base, the cable arrangement motor is mounted on the base and is transmission-connected with the bidirectional lead screw, the movable rail assembly is sleeved and mounted on the guide light rod and the two are slidably matched, and the bidirectional lead screw is transmission-connected with the movable rail assembly;

[0007] The movable rail assembly includes a cable discharge port, and a left limit roller and a right limit roller are symmetrically arranged on both sides of the cable discharge port. The upper and lower ends of the left limit roller and the right limit roller are respectively connected to tension springs, and the left limit roller and the right limit roller can be moved closer to or away from each other;

[0008] Cables of unequal diameters pass through the cable opening, and the cables of unequal diameters include thin cables, transition cables and thick cables. The initial state spacing between the left limit roller and the right limit roller is greater than the diameter of the thin cable, and the maximum working spacing between the left limit roller and the right limit roller is not less than the diameter of the thick cable.

[0009] Preferably, the base comprises: a left base and a right base, the cable arrangement motor is installed on the outside of the left base or the right base, and the output shaft of the cable arrangement motor is tightly connected to one end of the bidirectional screw.

[0010] Preferably, the guide light rod comprises: a rear guide light rod and a front guide light rod, the movable rail assembly comprises two guide sleeves symmetrically arranged at the bottom of the cable arrangement port, the two guide sleeves are respectively sleeved on the rear guide light rod and the front guide light rod, and the movable rail assembly can move along the axial direction of the guide light rod.

[0011] Preferably, a guide movable rail is provided at the bottom of the guide sleeve, a reversing fork is installed on the guide movable rail, and the guide movable rail is embedded in the thread of the bidirectional lead screw.

[0012] Preferably, the top ends of the left limit roller and the right limit roller are connected via an upper spring, and the bottom ends are connected via a lower spring, and the spring constant of the lower spring is greater than the spring constant of the upper spring.

[0013] Preferably, an initial distance between the left limiting roller and the right limiting roller is smaller than a diameter of the transition cable.

[0014] Preferably, the cable opening includes a cable opening frame, and the cable opening frame includes a vertically installed front cable guide roller assembly and a rear cable guide roller assembly, and the unequal diameter cables pass through the front cable guide roller assembly and the rear cable guide roller assembly in sequence, and the spacing between the front cable guide roller assemblies is not less than the diameter of the thick cable, and the spacing between the rear cable guide roller assemblies is not less than the diameter of the thick cable.

[0015] Preferably, an arched cable block is installed on the upper surface of the bottom plate of the cable outlet frame, and the distance between the highest point of the cable block and the top plate of the cable outlet frame is not less than the diameter of the thick cable.

[0016] Preferably, a left sensor and a right sensor are respectively provided at the top ends of the left limit roller and the right limit roller, and the left sensor and the right sensor are installed on the upper surface of the top plate of the cable outlet frame.

[0017] Preferably, a left sensor pressure rod and a right sensor pressure rod are respectively installed on the left sensor and the right sensor, and the left sensor and the right sensor are both electrically connected to a control device, and the control device is electrically connected to the cable arrangement motor.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model realizes that two limit rollers can move closer to or farther away from each other through a stretching spring, and can trigger a sensor when the limit rollers are squeezed by cables of unequal diameters by controlling the distance between the two limit rollers, thereby distinguishing cables of different diameters and adjusting the rotation speed of the cable arrangement motor to ensure that cables of unequal diameters are wound in an orderly manner on the surface of the drum, thereby helping to improve the reliability of orderly cable arrangement and the work efficiency of continuous cable arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a cable arrangement device for cables of unequal diameters used in a retractable device, which is mainly embodied in the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the movable rail assembly mainly embodied in the utility model;

[0023] Figure 3 This is a schematic diagram of the cable outlet structure mainly embodied in the utility model;

[0024] Figure 4 This is a schematic diagram of the working principle of the cable outlet of the utility model;

[0025] Figure 5 This is a top view of the cable outlet structure mainly embodied in the utility model.

[0026] Reference numerals:

[0027] Left base 1 Bidirectional screw 2 Moving rail assembly 3

[0028] Rear guide light rod 4 Front guide light rod 5 Right base 6

[0029] Cable arrangement motor 7 Cable arrangement port 8 Guide sleeve 9

[0030] Guide rail 10 Reversing fork 11 Left sensor 12

[0031] Left limit roller 13 Upper spring 14 Right sensor 15

[0032] Right limit roller 16 Rear guide roller assembly 17 Towing cable block 18

[0033] Lower spring 19 Front cable guide roller assembly 20 Cable outlet frame 21

[0034] Unequal diameter cables 22 Right sensor pressure bar 23 Left sensor pressure bar 24 DETAILED DESCRIPTION

[0035] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0036] like Figure 1-5 As shown, according to the utility model, a cable arrangement device for unequal-diameter cables for a retracting and releasing device includes: a base, a guide light rod, a bidirectional lead screw 2, a movable rail assembly 3, and a cable arrangement motor 7. The guide light rod is installed on the base, the bidirectional lead screw 2 is movably installed on the base, the cable arrangement motor 7 is installed on the base and is transmission-connected with the bidirectional lead screw 2, the movable rail assembly 3 is sleeved and installed on the guide light rod and the two are slidably matched, and the bidirectional lead screw 2 is transmission-connected with the movable rail assembly 3; the movable rail assembly 3 includes a cable arrangement port 8, and left limit rollers are symmetrically arranged on both sides of the cable arrangement port 8. Wheel 13 and right limit roller 16, the upper and lower ends of the left limit roller 13 and the right limit roller 16 are respectively connected with tension springs, and the left limit roller 13 and the right limit roller 16 can approach or move away from each other; the unequal diameter cables 22 pass through the cable outlet 8, and the unequal diameter cables 22 include thin cables, transition cables and thick cables. The initial state spacing between the left limit roller 13 and the right limit roller 16 is greater than the diameter of the thin cable, and the maximum working spacing between the left limit roller 13 and the right limit roller 16 is not less than the diameter of the thick cable.

[0037] The base includes: a left base 1 and a right base 6, a cable motor 7 is installed outside the left base 1 or the right base 6, and the output shaft of the cable motor 7 is tightly connected to one end of the bidirectional screw 2. The bidirectional screw 2 is located in the middle of the left base 1 and the right base 6 and is movably connected to the left base 1 and the right base 6 through a bearing.

[0038] The guide light rod is fixed between the left base 1 and the right base 6, and the guide light rod includes: a rear guide light rod 4 and a front guide light rod 5. The movable rail assembly 3 includes two guide sleeves 9 symmetrically arranged at the bottom of the cable outlet 8. The two guide sleeves 9 are respectively mounted on the rear guide light rod 4 and the front guide light rod 5. The movable rail assembly 3 can move along the axial direction of the guide light rod.

[0039] A guide movable rail 10 is provided at the bottom of the guide sleeve 9 , a reversing fork 11 is installed on the guide movable rail 10 , and the guide movable rail 10 is embedded in the thread of the bidirectional lead screw 2 .

[0040] The top ends of the left limiting roller 13 and the right limiting roller 16 are connected via an upper spring 14 , and the bottom ends are connected via a lower spring 19 , and the spring constant of the lower spring 19 is greater than the spring constant of the upper spring 14 .

[0041] The initial distance between the left limiting roller 13 and the right limiting roller 16 is smaller than the diameter of the transition cable.

[0042] The cable opening 8 includes a cable opening frame 21, which includes a vertically mounted front cable guide roller assembly 20 and a rear cable guide roller assembly 17. Cables of unequal diameters 22 pass through the front cable guide roller assembly 20 and the rear cable guide roller assembly 17 in sequence. The spacing between the front cable guide roller assemblies 20 is not less than the diameter of the thick cables, and the spacing between the rear cable guide roller assemblies 17 is not less than the diameter of the thick cables.

[0043] An arched cable block 18 is installed on the upper surface of the bottom plate of the cable opening frame 21 , and the distance between the highest point of the cable block 18 and the top plate of the cable opening frame 21 is not less than the diameter of the thick cable.

[0044] A left sensor 12 and a right sensor 15 are respectively disposed at the top ends of the left limit roller 13 and the right limit roller 16 . The left sensor 12 and the right sensor 15 are installed on the upper surface of the top plate of the cable outlet frame 21 .

[0045] A left sensor pressure rod 24 and a right sensor pressure rod 23 are respectively mounted on the left sensor 12 and the right sensor 15 , that is, the sensor pressure rods are in contact with the limit roller shaft.

[0046] The left sensor 12 and the right sensor 15 are both electrically connected to the control device, and the control device is electrically connected to the cable arrangement motor 7 .

[0047] The cable arrangement motor 7 realizes forward and reverse rotation at a specified speed under the control of the control system of the retracting device, drives the bidirectional lead screw 2 to rotate forward and reverse, and the reversing fork 11 meshes with the bidirectional lead screw 2 for transmission, pushing the movable rail assembly 3 to move back and forth on the guide light rod, ensuring that the cable passing through the cable arrangement port 8 is wound in an orderly manner on the surface of the drum. The control system of the retracting device recognizes and determines that the current retracting is a thick cable based on the feedback signals received from the left sensor 12 and the right sensor 15 at the same time, and promptly controls the cable arrangement motor to rotate at a speed matching the thick cable through instructions to ensure that the thick cable is wound in an orderly manner on the surface of the drum. If the control system of the retracting device does not receive the feedback signals from the left sensor 12 and the right sensor 15 at the same time, it recognizes and determines that the current retracting is a thin cable, and controls the cable arrangement motor to rotate at a speed matching the thin cable through instructions to ensure that the thin cable is wound in an orderly manner on the surface of the drum.

[0048] In actual operation, when the retracting and releasing device is retracting the cable, the thin cable segment of the unequal diameter cable 22 successively passes through the front cable guide wheel assembly 20, the left limit roller 13, the right limit roller 16 and the rear cable guide roller assembly 17. Since the initial spacing S of the left limit roller 13 and the right limit roller 16 is designed to be much larger than the diameter d1 of the thin cable, the left limit roller 13 and the right limit roller 16 will not be squeezed by the thin cable at the same time, causing the left sensor 12 and the right sensor 15 installed on the cable outlet 8 to be triggered at the same time, and the cable motor 7 rotates at the specified speed of the thin cable.

[0049] When the conical transition section of the unequal diameter cable 22 passes through the front cable guide wheel assembly 20, the left limit roller 13, the right limit roller 16 and the rear cable guide roller assembly 17, the transition section diameter d2 exceeds the initial state spacing S of the left limit roller 13 and the right limit roller 16, and the left limit roller 13 and the right limit roller 16 are squeezed at the same time. Since the spring constant of the lower spring 19 is greater than the spring constant of the upper spring 14, the upper spring 14 is stretched first, and the left limit roller 13 and the right limit roller 16 move in the waist-shaped groove of the top plate of the cable outlet frame 21. At this time, the left sensor 12 and the right sensor 15 installed on the cable outlet 8 are triggered at the same time, and the retracting device control system controls the cable outlet motor 7 to rotate according to the matching speed (acceleration) of the thick cable through instructions to ensure that the transition section is wound on the drum surface in an orderly manner.

[0050] When the unequal diameter cable 22 passes through the front cable guide wheel assembly 20, the left limit roller 13, the right limit roller 16 and the rear cable guide roller assembly 17, since the diameter d3 of the thick cable is greater than the transition section diameter d2, and exceeds the initial state spacing S of the left limit roller 13 and the right limit roller 16, the left limit roller 13 and the right limit roller 16 continue to be squeezed at the same time, the lower spring 19 is stretched, and the left limit roller 13 and the right limit roller 16 move in the waist-shaped groove of the bottom plate of the cable arrangement port frame 21. The left sensor 12 and the right sensor 15 installed on the cable arrangement port 8 continue to maintain the simultaneous triggering state, and the cable arrangement motor 7 continues to maintain the matching speed (acceleration) of the thick cable to ensure that the thick cable is orderly wound on the drum surface.

[0051] The cable block 18 installed on the cable opening frame 21 can protect the passing cables from contacting the cable opening frame 21 in a free state, thereby affecting the sequence in which the upper spring 14 and the lower spring 19 are stretched, thereby causing cable identification failure.

[0052] When the cable-retracting device is releasing the cable, the action sequence of the entire cable-arranging device is opposite to the above cable-retracting, and the automatic cable-arranging function of identifying cables of unequal diameters can also be realized.

[0053] The present application adopts a contact-type passive detection sensor to identify cables of unequal diameters, which can effectively avoid the cumulative error problem caused by using encoders to record the lengths of cables of unequal diameters for identification in the prior art, improve the reliability of orderly cable arrangement and the work efficiency of continuous cable arrangement, and secondly, the use of a spring clamping device can realize multi-level cable size identification.

[0054] By adopting the unequal-diameter cable arrangement device for the retractable device of the present application, the problems of low efficiency, complicated operation and inevitable errors in encoder recording of the manual method are solved.

[0055] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0056] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A cable arrangement device for cables of unequal diameters for a retractable device, characterized in that: include: A base, a guide light rod, a bidirectional lead screw (2), a movable rail assembly (3), and a cable arrangement motor (7), wherein the guide light rod is mounted on the base, the bidirectional lead screw (2) is movably mounted on the base, the cable arrangement motor (7) is mounted on the base and is in transmission connection with the bidirectional lead screw (2), the movable rail assembly (3) is sleeved and mounted on the guide light rod and the two are slidably matched, and the bidirectional lead screw (2) is in transmission connection with the movable rail assembly (3); The movable rail assembly (3) comprises a cable discharge port (8), and a left limit roller (13) and a right limit roller (16) are symmetrically arranged on both sides of the cable discharge port (8), and the upper and lower ends of the left limit roller (13) and the right limit roller (16) are respectively connected to tension springs, and the left limit roller (13) and the right limit roller (16) can move closer to or farther from each other; The cables (22) of unequal diameter pass through the cable arrangement port (8), and the cables (22) of unequal diameter include thin cables, transition cables, and thick cables. The initial state spacing between the left limit roller (13) and the right limit roller (16) is greater than the diameter of the thin cable, and the maximum working spacing between the left limit roller (13) and the right limit roller (16) is not less than the diameter of the thick cable.

2. The cable arrangement device for cables of different diameters for a retractable device according to claim 1, characterized in that: The base comprises: a left base (1) and a right base (6); the cable arrangement motor (7) is installed on the outside of the left base (1) or the right base (6); and the output shaft of the cable arrangement motor (7) is tightly connected to one end of the bidirectional screw (2).

3. The cable arrangement device for cables of different diameters for a retractable device according to claim 1, characterized in that: The guide light rod comprises: a rear guide light rod (4) and a front guide light rod (5); the movable rail assembly (3) comprises two guide sleeves (9) symmetrically arranged at the bottom of the cable arrangement port (8); the two guide sleeves (9) are respectively sleeved on the rear guide light rod (4) and the front guide light rod (5); and the movable rail assembly (3) can move along the axial direction of the guide light rod.

4. The cable arrangement device for cables of different diameters for a retractable device according to claim 3, characterized in that: A guide movable rail (10) is arranged at the bottom of the guide sleeve (9), a reversing fork (11) is mounted on the guide movable rail (10), and the guide movable rail (10) is embedded in the thread of the bidirectional lead screw (2).

5. The cable arrangement device for cables of unequal diameters for a retractable device according to claim 1, characterized in that: The top ends of the left limiting roller (13) and the right limiting roller (16) are connected via an upper spring (14), and the bottom ends are connected via a lower spring (19), wherein the spring constant of the lower spring (19) is greater than the spring constant of the upper spring (14).

6. The cable arrangement device for cables of unequal diameters for a retractable device according to claim 1, characterized in that: The initial state distance between the left limiting roller (13) and the right limiting roller (16) is smaller than the diameter of the transition cable.

7. The cable arrangement device for cables of different diameters for a retractable device according to claim 1, characterized in that: The cable opening (8) comprises a cable opening frame (21), and the cable opening frame (21) comprises a front cable guide roller assembly (20) and a rear cable guide roller assembly (17) which are vertically installed. The unequal diameter cables (22) pass through the front cable guide roller assembly (20) and the rear cable guide roller assembly (17) in sequence. The spacing between the front cable guide roller assemblies (20) is not less than the diameter of the thick cable, and the spacing between the rear cable guide roller assemblies (17) is not less than the diameter of the thick cable.

8. The cable arrangement device for cables of different diameters for a retractable device according to claim 7, characterized in that: An arched cable block (18) is installed on the upper surface of the bottom plate of the cable opening frame (21), and the distance between the highest point of the cable block (18) and the top plate of the cable opening frame (21) is not less than the diameter of the thick cable.

9. The cable arrangement device for cables of different diameters for a retractable device according to claim 7, characterized in that: A left sensor (12) and a right sensor (15) are respectively arranged at the top ends of the left limit roller (13) and the right limit roller (16); the left sensor (12) and the right sensor (15) are installed on the upper surface of the top plate of the cable outlet frame (21).

10. The cable arrangement device for cables of unequal diameters for a retractable device according to claim 9, characterized in that: A left sensor pressure rod (24) and a right sensor pressure rod (23) are respectively installed on the left sensor (12) and the right sensor (15). The left sensor (12) and the right sensor (15) are both electrically connected to a control device, and the control device is electrically connected to the cable arrangement motor (7).

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