A transmission device for cables

Abstract

The present invention discloses a transmission device for cables, which belongs to the field of cable transmission technology. The transmission device includes a traction assembly and a transmission assembly; the traction assembly includes a first drive member and a winch. The transmission assembly includes a support frame, a rotating frame, an extrusion wheel group, a second drive member and an adjustment member. The support frame is provided with a baffle perpendicular to the cable. The extrusion wheel group includes two extrusion wheels arranged at intervals. The output end of the second drive member and the two extrusion wheels are transmitted by a gear transmission mechanism. One extrusion wheel is rotatably arranged on the support frame, one end of the rotating frame is hinged on the support frame, and the other extrusion wheel is rotatably arranged in the middle of the rotating frame. The adjustment member includes a movable tube, a slider, a spring and a limit block. The present invention provides a transmission device for cables, which can realize adaptive changes in cable diameter through the extrusion wheel. When the cable diameter changes, it can automatically adjust to achieve transmission of the cable.

Description

Technical Field

[0001] The present invention belongs to the technical field of cable transmission, and more particularly, relates to a transmission device for cables. Background Art

[0002] Cables are composed of single or multiple inner conductors, shielding layers, load-bearing layers and outer sheaths. They have the common characteristics of small diameter, long length and high flexibility. They are widely used in power systems, information transmission, instrumentation systems, medical and fire protection fields.

[0003] Currently, during the production and installation of communication cables, cables are transported using conveying devices. However, conventional conveying devices cannot adapt to changes in cable diameter, resulting in functional issues such as cable slippage and cable failure. Summary of the Invention

[0004] In response to the above defects or improvement needs of the prior art, the present invention provides a transmission device for cables, the purpose of which is to achieve adaptive changes in cable diameter through an extrusion wheel. When the cable diameter changes, it can be automatically adjusted to achieve cable transmission.

[0005] The present invention provides a transmission device for a cable, the transmission device comprising a traction assembly and a transmission assembly;

[0006] The traction assembly includes a first driving member and a winch, wherein the output end of the first driving member is in transmission connection with the winch to drive the winch to rotate;

[0007] The transmission assembly comprises a support frame, a rotating frame, at least one extrusion wheel group, a second driving member and an adjusting member, the support frame has a baffle perpendicular to the cable, the extrusion wheel group comprises two extrusion wheels arranged at intervals, the output end of the second driving member and the two extrusion wheels are driven by a gear transmission mechanism, so that the two extrusion wheels are linked to each other to clamp the transmission cable, one extrusion wheel is rotatably arranged on the support frame, one end of the rotating frame is hinged on the support frame, and the other extrusion wheel is rotatably arranged in the middle of the rotating frame, the adjusting member comprises a movable tube, a slider, a spring and a limit block, the movable tube is fixedly connected to the other end of the rotating frame, the slider is slidably inserted in one end of the movable tube, one end of the slider is an arc surface, and after extending out of the movable tube, it abuts against the baffle, the limit block is inserted in the other end of the movable tube, and the spring is clamped between the slider and the limit block.

[0008] Optionally, the gear transmission mechanism includes a driving gear, at least two mutually meshing transmission gears and a driven gear, the driving gear is coaxially arranged with one of the extrusion wheels and is linked by a rotating shaft, the output end of the second driving member is connected to the driving gear to drive the driving gear to rotate, the two transmission gears are respectively meshed with the driving gear and the driven gear, and the rotating shaft of one of the transmission gears is coaxial with the hinge shaft of the rotating frame, the driven gear is coaxially arranged with the other extrusion wheel and is linked by a rotating shaft.

[0009] Optionally, the number of the transmission gears is two or four.

[0010] Optionally, the limiting block is slidably arranged in the movable tube.

[0011] Optionally, the other end of the movable tube is sealed by a block, a screw is inserted into the block, the screw is coaxially arranged with the movable tube, and one end of the screw passes through the block and abuts against the limit block to drive the limit block to slide.

[0012] Optionally, a nut is sleeved on the screw rod, and one end of the nut abuts against the blocking block.

[0013] Optionally, a rim is fixed on the outer peripheral wall of each extrusion wheel to extrude the cable.

[0014] Optionally, the wheel rim is made of nitrile rubber with a hardness of HRC75.

[0015] The technical solution provided by the embodiment of the present invention has the following beneficial effects:

[0016] In a cable conveying device provided by an embodiment of the present invention, when retrieving a cable, the cable passes through two extrusion wheels. A second drive member, driven by a gear transmission mechanism, drives the two extrusion wheels in a coordinated manner to clamp and convey the cable. Furthermore, the output end of the first drive member is connected to a capstan, driving the capstan to rotate, causing the recovered cable to be wound around the capstan, thereby completing the cable reeling.

[0017] Similarly, when the cable is being transported, the first drive member and the second drive member drive the gear transmission mechanism or the winch to reverse, thereby transporting the cable out of the winch.

[0018] Furthermore, when the cable diameter changes (due to changes in cable model or differences in cable diameter), for example, when the cable diameter increases, the position of the lower extrusion wheel remains unchanged, while the upper extrusion wheel will be squeezed and rotated, thereby driving the rotating frame to rotate (counterclockwise), causing the movable tube and the limit block to move left and upward relative to the block while rotating. At this time, since the slider is limited by the baffle, the spring is further compressed, and the reaction force generated by the spring will drive the limit block, the movable tube and the rotating frame to have a tendency to move in the opposite direction, thereby firmly squeezing the cable between the two extrusion wheels to prevent the extrusion wheels from slipping, thereby completing the transmission. Similarly, when the cable diameter becomes smaller, the spring will also drive the limit block, the movable tube and the rotating frame to move, and the cable can also be firmly squeezed between the two extrusion wheels to prevent the extrusion wheels from slipping, thereby completing the transmission. That is, the extrusion wheel can realize the change of adaptive cable diameter. When the cable diameter changes, it can automatically adjust to complete the transmission of the cable.

[0019] That is, the embodiment of the present invention provides a transmission device for cables, which can realize adaptive changes in cable diameter through an extrusion wheel. When the cable diameter changes, it can automatically adjust to achieve transmission of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 1 is a schematic structural diagram of a transmission device for a cable provided in an embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of a transmission assembly provided by an embodiment of the present invention;

[0022] Figure 3 1 is a transmission schematic diagram of the forward transmission of the gear transmission mechanism provided by an embodiment of the present invention;

[0023] Figure 4 1 is a transmission schematic diagram of reverse transmission of a gear transmission mechanism provided by an embodiment of the present invention;

[0024] Figure 5 It is a schematic structural diagram of an extrusion wheel provided in an embodiment of the present invention.

[0025] The symbols in the figure mean the following:

[0026] 1. Traction assembly; 11. First driving member; 12. Winch; 2. Transmission assembly; 21. Support frame; 211. Baffle; 22. Rotating frame; 23. Extrusion wheel group; 231. Extrusion wheel; 232. Rim; 24. Second driving member; 25. Adjusting member; 251. Movable tube; 252. Slider; 253. Spring; 254. Limit block; 255. Block; 256. Screw; 257. Nut; 26. Gear transmission mechanism; 261. Driving gear; 262. Transmission gear; 263. Driven gear; 100. Cable. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0028] Figure 1 Schematic diagram of a transmission device for a cable according to an embodiment of the present invention. Figure 1 As shown, the conveying device includes a traction component 1 and a conveying component 2.

[0029] The traction assembly 1 includes a first driving member 11 and a winch 12 . The output end of the first driving member 11 is in transmission connection with the winch 12 to drive the winch 12 to rotate.

[0030] Figure 2 Schematic diagram of the structure of the transmission component provided by the embodiment of the present invention. Figure 2 As shown, the transmission assembly 2 includes a support frame 21, a rotating frame 22, at least one extrusion wheel group 23, a second driving member 24 and an adjusting member 25. The support frame 21 has a baffle 211 perpendicular to the cable 100. The extrusion wheel group 23 includes two extrusion wheels 231 arranged at intervals. The output end of the second driving member 24 and the two extrusion wheels 231 are driven by a gear transmission mechanism 26, so that the two extrusion wheels 231 are linked (the corresponding two extrusion wheels 231 rotate in opposite directions) to clamp the transmission cable 100. One extrusion wheel 231 is rotatably arranged on the support frame 21, and the rotation One end of the movable frame 22 is hinged to the support frame 21, and the other extrusion wheel 231 is rotatably arranged in the middle of the rotating frame 22. The adjusting member 25 includes a movable tube 251, a slider 252, a spring 253 and a limit block 254. The movable tube 251 is fixedly connected to the other end of the rotating frame 22, and the slider 252 is slidably inserted into one end of the movable tube 251. One end of the slider 252 is an arc surface, and after extending out of the movable tube 251, it abuts against the baffle 211. The limit block 254 is inserted in the other end of the movable tube 251, and the spring 253 is clamped between the slider 252 and the limit block 254.

[0031] In a cable transmission device provided by an embodiment of the present invention, when retrieving a cable 100, the cable 100 passes through two extrusion wheels 231. The second drive member 24 is driven via a gear transmission mechanism 26, thereby causing the two extrusion wheels 231 to work in conjunction with each other to clamp and transmit the cable 100. Furthermore, the output end of the first drive member 11 is in transmission connection with the capstan 12 to drive the capstan 12 to rotate, causing the cable 100 to be rewound around the capstan 12, thereby completing the cable winding.

[0032] Similarly, when the cable 100 is being transported, the first driving member 11 and the second driving member 24 drive the gear transmission mechanism 26 or the winch 12 to reverse, thereby transporting the cable 100 out of the winch 12 .

[0033] Furthermore, when the diameter of the cable 100 changes (due to a change in the model of the cable 100 or a difference in the diameter of the cable 100 itself), for example, when the diameter of the cable 100 increases, the position of the lower extrusion wheel 231 remains unchanged, while the upper extrusion wheel 231 is squeezed and rotated, thereby driving the rotating frame 22 to rotate (counterclockwise), causing the movable tube 251 and the limit block 254 to move leftward and upward relative to the block while rotating. At this time, since the slider 252 is limited by the baffle 211, the spring 253 is further compressed, and the reaction force generated by the spring 253 will drive the limit block 254, the movable tube 251 and the rotating frame 22 to have a tendency to move in the opposite direction, thereby firmly squeezing the cable 100 between the two extrusion wheels 231, preventing the extrusion wheels 231 from slipping, and completing the transmission. Similarly, when the diameter of the cable 100 decreases, the spring 253 will also drive the limit block 254, the movable tube 251, and the rotating frame 22 to move, similarly squeezing the cable 100 firmly between the two squeezing wheels 231, preventing the squeezing wheels 231 from slipping, and thus completing the transmission. In other words, the squeezing wheels 231 can adapt to changes in the diameter of the cable 100 and automatically adjust when the cable diameter changes to complete the transmission of the cable 100.

[0034] That is, the embodiment of the present invention provides a transmission device for cables, which can realize the change of the cable diameter of the adaptive cable 100 through the extrusion wheel 231. When the cable diameter changes, it can automatically adjust to achieve the transmission of the cable 100.

[0035] In addition, when the transmission device provided by the present invention realizes the change of the cable diameter of the adaptive cable 100, the elastic force provided by the spring 253 can also produce a buffering effect, which can prevent the squeezing wheel 231 from damaging the cable 100 during the squeezing process.

[0036] For example, the first driving member 11 and the second driving member 24 may be forward and reverse rotating motors.

[0037] It is easy to understand that the left end of the slider 252 is arc-shaped, which allows the slider 252 to move better when the movable tube 251 drives the slider 252 to rotate (at this time the slider 252 will move up or down relative to the baffle 211), thereby preventing the slider 252 from getting stuck.

[0038] It should be noted that the gear transmission mechanism 26 is disposed below the two extrusion wheels 231 and the cable 100 .

[0039] In this embodiment, the number of the extrusion wheel groups 23 can be two (or three, etc.), and the two extrusion wheel groups 23 serve as backup for each other, which not only improves the conveying force but also ensures the conveying of the cable 100 when one of the extrusion wheel groups 23 fails. In this case, the corresponding rotating frames 22 and adjusting members 25 are also two.

[0040] In this embodiment, the gear transmission mechanism 26 includes a driving gear 261, at least two mutually meshing transmission gears 262 and a driven gear 263. The driving gear 261 is coaxially arranged with one extrusion wheel 231 and is linked by a rotating shaft. The output end of the second driving member 24 is connected to the driving gear 261, and the two transmission gears 262 are respectively meshed with the driving gear 261 and the driven gear 263. The rotating shaft of one transmission gear 262 is coaxial with the hinge shaft of the rotating frame 22, and the driven gear 263 is coaxially arranged with the other extrusion wheel 231 and is linked by a rotating shaft.

[0041] In the above embodiment, the second driving member 24 drives the driving gear 261 to rotate, which in turn drives the two transmission gears 262 and the driven gear 263 to rotate, thereby driving the four extrusion wheels 231 to rotate simultaneously. In addition, by maintaining the upper transmission gear 262 coaxial with the hinge axis of the rotating frame 22, it is ensured that when the upper right extrusion wheel 231 changes diameter, it will drive the upper right driven gear 263 to rotate, and the driven gear 263 will always remain in meshing state with the upper transmission gear 262.

[0042] It is easy to understand that the gear transmission mechanism 26 provided by the present invention can ensure the linkage of multiple extrusion wheels 231, and the gear transmission mechanism 26 can still maintain an engaged state while the extrusion wheels 231 rotate, thereby achieving linkage.

[0043] For example, the number of the transmission gears 262 can be two or four, etc., without limitation. In other words, the gear transmission mechanism 26 can be adaptively designed according to the specific installation environment, and the present invention does not impose any limitation on this.

[0044] Exemplarily, the rotating frame 22 is a V-shaped structure.

[0045] Figure 3: is a transmission schematic diagram of the forward transmission of the gear transmission mechanism provided by an embodiment of the present invention, Figure 4 This is a transmission diagram of the reverse transmission of the gear transmission mechanism provided by the embodiment of the present invention, combined with Figure 3 and Figure 4 As shown, the driving gear 261, two transmission gears 262 and three driven gears 263 realize transmission, and the driving gear 261 and the three driven gears 263 are respectively linked to the corresponding extrusion wheels 231 through the rotating shaft.

[0046] See again Figure 2 The limiting block 254 is slidably arranged in the movable tube 251.

[0047] In the above embodiment, by adjusting the position of the limit block 254 on the movable tube 251, the initial compression amount of the spring 253 can be adjusted, thereby adjusting the elastic force of the spring 253, and also adjusting the extrusion force of the extrusion wheel 231 during the diameter change process to avoid the extrusion force being too large or too small.

[0048] In one implementation of the present invention, the other end of the movable tube 251 is sealed by a block 255, and a screw 256 is inserted into the block 255. The screw 256 is coaxially arranged with the movable tube 251, and one end of the screw 256 is against the limit block 254 to drive the limit block 254 to slide.

[0049] In the above embodiment, the position of the limit block 254 can be adjusted by rotating the screw 256, thereby conveniently adjusting the initial compression amount of the spring 253.

[0050] Exemplarily, a nut 257 is sleeved on the screw 256, and one end of the nut 257 is against the block 255. By screwing the nut 257 so that the nut 257 and the block 255 are against each other, the screw 256 can be prevented from loosening and prevented from rotating accidentally.

[0051] In other embodiments of the present invention, the limiting block 254 may also be provided with a limiting screw that penetrates the wall thickness of the movable tube 251 to achieve lateral limiting.

[0052] Figure 5 Schematic diagram of the structure of the extrusion wheel provided by the embodiment of the present invention, such as Figure 5 As shown, a wheel rim 232 is fixedly provided on the outer peripheral wall of each extrusion wheel 231 to extrude the cable 100 .

[0053] In the above embodiment, the rim 232 is a non-metallic structure with suitable hardness and friction coefficient, which can effectively reduce the wear on the cable 100.

[0054] Exemplarily, the rim 232 is made of nitrile rubber with a hardness of HRC75.

[0055] It will be easily understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is 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 scope of protection of the present invention.

Claims

1. A transmission device for a cable, characterized in that: The conveying device comprises a traction component (1) and a conveying component (2); The traction assembly (1) comprises a first driving member (11) and a winch (12), wherein an output end of the first driving member (11) is transmission-connected to the winch (12) to drive the winch (12) to rotate; The transmission assembly (2) includes a support frame (21), a rotating frame (22), at least one extrusion wheel group (23), a second driving member (24) and an adjusting member (25). The support frame (21) has a baffle (211) perpendicular to the cable (100). The extrusion wheel group (23) includes two extrusion wheels (231) arranged at intervals. The output end of the second driving member (24) and the two extrusion wheels (231) are driven by a gear transmission mechanism (26), so that the two extrusion wheels (231) are linked to clamp the transmission cable (100). One of the extrusion wheels (231) is rotatably arranged on the support frame (21). One end of the rotating frame (22) is hinged to the support frame (21). On the other hand, the extrusion wheel (231) is rotatably arranged in the middle of the rotating frame (22), and the adjusting member (25) includes a movable tube (251), a slider (252), a spring (253) and a limit block (254). The movable tube (251) is fixedly connected to the other end of the rotating frame (22), and the slider (252) is slidably inserted into one end of the movable tube (251). One end of the slider (252) is an arc surface, and after extending out of the movable tube (251), it abuts against the baffle (211). The limit block (254) is inserted into the other end of the movable tube (251), and the spring (253) is sandwiched between the slider (252) and the limit block (254); The gear transmission mechanism (26) comprises a driving gear (261), at least two mutually meshing transmission gears (262) and a driven gear (263), wherein the driving gear (261) is coaxially arranged with one of the extrusion wheels (231) and is linked to each other via a rotating shaft, and the output end of the second driving member (24) is transmission-connected with the driving gear (261) to drive the driving gear (261) to rotate, and the two transmission gears (262) are respectively meshed with the driving gear (261) and the driven gear (263), and the rotating shaft of one of the transmission gears (262) is coaxial with the hinge shaft of the rotating frame (22), and the driven gear (263) is coaxially arranged with the other extrusion wheel (231) and is linked to each other via a rotating shaft.

2. A transmission device for cables according to claim 1, characterized in that: The number of the transmission gears (262) is two or four.

3. A transmission device for cables according to claim 1, characterized in that: The limiting block (254) is slidably arranged in the movable tube (251).

4. A transmission device for cables according to claim 3, characterized in that: The other end of the movable tube (251) is sealed by a block (255), and a screw (256) is inserted into the block (255). The screw (256) is coaxially arranged with the movable tube (251), and one end of the screw (256) passes through the block (255) and abuts against the limit block (254) to drive the limit block (254) to slide.

5. A transmission device for cables according to claim 4, characterized in that: A nut (257) is sleeved on the screw rod (256), and one end of the nut (257) abuts against the blocking block (255).

6. A transmission device for cables according to any one of claims 1 to 5, characterized in that: The outer peripheral wall of each extrusion wheel (231) is fixedly sleeved with a wheel rim (232) for extruding the cable (100).

7. A transmission device for cables according to claim 6, characterized in that: The wheel rim (232) is made of nitrile rubber and has a hardness of HRC75.

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