A cable laying device for a bridge with cutting function

Abstract

The invention discloses a cable laying device with a cutting function, which relates to the technical field of laying cables and comprises a frame, a wire drum rotatably connected to the frame and a wire transmission mechanism arranged on the frame for laying cables, wherein a shearing mechanism is arranged on the frame, and the shearing mechanism comprises: a cutting assembly, which comprises a circular ring and two cutting units symmetrically arranged with the axis center of the circular ring, each of the cutting units comprises a cutter elastically slidably connected to the side surface of the circular ring, and the two cutters have a skin cutting station for cutting into the cable skin and a cutting station for cutting the cable in the sliding and closing stroke; the cable laying device with a cutting function can force the two cutters in the cutting assembly to perform two circular cutting operations and one cutting operation on the cable by arranging a second guide unit and two first guide units, so as to facilitate subsequent staff to install cable connectors, thereby reducing the work intensity of the staff.

Description

Technical Field

[0001] The invention relates to the technical field of laying out cables, and in particular to a bridge laying out cable device with a cutting function. Background Art

[0002] In power distribution projects, the distribution room is usually located underground, so the cables need to be laid out in the bridge in the basement.

[0003] Based on the patent number "CN111003611B", a mobile cable display rack is disclosed, which includes: a bearing mechanism, including two lifting components fixed on both sides of the base, each of the lifting components is provided with a support component, and the support component is detachably connected with a mounting component, and the mounting component is used to rotate the cable drum and carry it on the support component; a driving mechanism is used to drive the mounting component to rotate. When in use, the mounting component is passed through the cable drum to fix the cable drum, and the two ends of the mounting component are placed above the supporting component. Then the lifting component is started to make the cable drum suspended in the air, and finally the driving mechanism is started to drive the mounting component to rotate, thereby driving the cable drum to rotate; it can facilitate the transportation of large cable drums, and it is also convenient to retract and release the cables on the cable drum. The operation is simple and it can also reduce labor costs.

[0004] In the prior art provided in the above-mentioned patent, cables can be laid out so that the cables are laid in a bridge. Based on this, multiple cables usually need to be laid in some bridges. In order to better and conveniently lay multiple cables, some existing cable laying equipment will cut the cables wound on rollers into multiple cables of equal lengths multiple times. However, after laying, some cables also need to be stripped at both ends of the cables in order to install cable connectors, which facilitates the subsequent connection between the cable connectors and the power equipment. So far, the staff are required to perform manual stripping, which increases the work intensity of the staff to a certain extent. Summary of the invention

[0005] The object of the present invention is to provide a bridge frame cable laying device with a cutting function to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bridge frame cable laying device with a cutting function, comprising a frame, a wire drum rotatably connected to the frame, and a wire transmission mechanism arranged on the frame for laying out the cable, the frame is provided with a shearing mechanism, the shearing mechanism comprises: a cutting assembly, which comprises a circular ring and two cutting units symmetrically arranged about the axis center of the circular ring, each of the cutting units comprises a cutting knife elastically slidably connected to the side surface of the circular ring, and the two cutting knives have a cutting station for cutting into the cable skin and a cutting station for cutting the cable in the stroke of sliding together. station; a sliding part, which includes a spline shaft rotatably connected to the frame and a slide slidably connected to the spline shaft, and the slide is slidably connected to the ring; two first guide units, which are arranged front and back along the cable conveying direction, and in the process of the slide sliding along the spline shaft, each first guide unit drives the two cutters to slide and close to the skin cutting station, and then drives the ring to rotate through the transmission component to make the two cutters cut the cable skin; a second guide unit, which is located between the two first guide units, and in the process of the slide sliding along the spline shaft, the second guide unit drives the two cutters to slide and close to the cutting station.

[0007] Preferably, each first guide unit includes two coaxial first arc rings whose inner sides are first conical surfaces, and the two first conical surfaces are arranged opposite to each other; the second guide unit includes two coaxial second arc rings whose inner sides are second conical surfaces, and the two second conical surfaces are arranged opposite to each other, and the taper of the second conical surfaces is greater than the taper of the first conical surfaces.

[0008] Preferably, the transmission assembly comprises: a first gear which is coaxially fixedly connected to the circular ring; a second gear which is coaxially slidably connected to the spline shaft via a spline sleeve, and the spline sleeve is coaxially rotationally connected to the slide.

[0009] Preferably, it also includes a driving component for driving the slide to slide linearly along the spline shaft, wherein the driving component is a reciprocating screw, the main shaft of the reciprocating screw is rotatably connected to the frame, and the slider of the reciprocating screw is fixedly connected to the slide.

[0010] Preferably, a one-way output mechanism is provided between the main shaft of the reciprocating screw and the spline shaft, and the one-way output mechanism includes: a first ratchet pawl assembly, which includes a first pawl coaxially elastically rotatably connected to the main shaft of the reciprocating screw and a first ratchet rotatably connected to the frame and engaged with the first pawl; a second ratchet pawl assembly, which includes a second pawl coaxially elastically rotatably connected to the spline shaft and a second ratchet rotatably connected to the frame and engaged with the second pawl; a third gear, which is coaxially fixedly connected to the first ratchet; a fourth gear, which is coaxially fixedly connected to the second ratchet, and the fourth gear is meshed with the third gear; a driving motor, whose output shaft is coaxially fixedly connected to the first ratchet, when the output shaft rotates in a first direction, only drives the first pawl to engage with the first ratchet to make the main shaft of the reciprocating screw rotate, and when the output shaft rotates in the second direction, only drives the second pawl to engage with the second ratchet to make the spline shaft rotate.

[0011] Preferably, each of the cutting units also includes a slide rail arranged on the side of the circular ring, and the cutter is slidably connected to the slide rail through a connecting rod. A first spring is provided between the connecting rod and the slide rail, one end of the first spring is fixedly connected to the slide rail, and the other end is fixedly connected to the connecting rod, and an abutment block is fixedly connected to the connecting rod and abuts against each first conical surface or each second conical surface.

[0012] Preferably, the blade of each cutting knife is V-shaped.

[0013] Preferably, an annular groove is provided on the circular ring, and two symmetrically arranged guide rods are fixedly connected to the slider of the reciprocating screw, and one end of the two guide rods away from the slider of the reciprocating screw is fixedly connected to a guide block located in the annular groove.

[0014] In the above technical scheme, the present invention provides a bridge cable laying device with a cutting function, and the sliding part has three strokes during the linear sliding of the spline shaft. In the first stroke, the two cutters are forced to cut into the cable sheath through the first first guide unit, and then the two cutters are driven to rotate with the ring through the transmission component, thereby completing the first ring cutting process; in the second stroke, the two cutters are forced to cut the cable through the second guide unit, thereby completing the cutting operation between the laid cable and the cable wound on the bobbin; in the third stroke, the two cutters are forced to cut into the sheath of the laid cable end through the second first guide unit, and then the two cutters are driven to rotate with the ring through the transmission component again, and then the sheath of the laid cable end is subjected to the ring cutting process. In summary, the above process can not only cut the cable, but also perform ring cutting on the cable that has been cut and laid on the bridge and the cable with the end released after being wound on the reel to expose the wire core, thereby facilitating the subsequent staff to install the cable connector without the need for the staff to use other tools for ring cutting and cutting operations. This not only improves the practicability of the entire device, but also greatly reduces the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0017] Figure 2 A partial schematic diagram of a rack provided by an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of the structure of a shearing mechanism provided by an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of the structure of a ring provided in an embodiment of the present invention;

[0020] Figure 5 The motion state of the two cutters provided in the embodiment of the present invention Figure I ;

[0021] Figure 6 The motion state of the two cutters provided in the embodiment of the present invention Figure II ;

[0022] Figure 7 The motion state of the two cutters provided in the embodiment of the present invention Figure III;

[0023] Figure 8 The motion state of the two cutters provided in the embodiment of the present invention Figure IV ;

[0024] Fig. 9 A schematic diagram of the structure of a cutting unit provided in an embodiment of the present invention;

[0025] Fig.10 A structural schematic diagram of a one-way output mechanism is provided for an embodiment of the present invention;

[0026] Fig.11 A schematic diagram of the structure of a transmission part is provided for an embodiment of the present invention;

[0027] Fig.12 A schematic diagram of the structure of an eccentric arc block provided by another embodiment of the present invention;

[0028] Fig.13 A schematic structural diagram of a positioning ring provided in another embodiment of the present invention;

[0029] Fig.14 The motion state of two push rods provided in another embodiment of the present invention Figure I ;

[0030] Fig.15 The motion state of two push rods provided in another embodiment of the present invention Figure II .

[0031] Description of reference numerals:

[0032] 1. Frame; 2. Wire drum; 3. Wire feeding mechanism; 4. Cutting assembly; 41. Circular ring; 42. Cutting unit; 421. Cutter; 422. Slide rail; 423. Connecting rod; 424. Abutment block; 425. First spring; 5. Sliding part; 51. Spline shaft; 52. Slide table; 6. First guide unit; 61. First arc ring; 62. First cone surface; 7. Second guide unit; 71. Second arc ring; 72. Second cone surface ;8. Transmission assembly;81. First gear;82. Second gear;83. Spline sleeve;9. Reciprocating screw;10. One-way output mechanism;101. First ratchet and pawl assembly;102. Second ratchet and pawl assembly;103. Third gear;104. Fourth gear;11. Positioning ring;12. Push rod;13. Annular groove;14. Eccentric arc block;141. Guide edge;142. Fan-shaped edge;15. Clamp. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] See also Figure 1-11The embodiment of the present invention provides a cable bridge laying device with a cutting function, comprising a frame 1, a wire drum 2 rotatably connected to the frame 1, and a wire transmission mechanism 3 arranged on the frame 1 for laying out the cable, the frame 1 is provided with a shearing mechanism, the shearing mechanism comprises a cutting assembly 4, a sliding portion 5, a second guide unit 7 and two first guide units 6, the cutting assembly 4 comprises a circular ring and two cutting units 42 arranged symmetrically about the axis center of the circular ring 41, each cutting unit 42 comprises a cutter 421 elastically slidably connected to the side of the circular ring 41, and the two cutters 421 have a skin cutting station for cutting into the cable skin and a cable cutting station in the sliding closing stroke. Cutting station; the sliding part 5 includes a spline shaft 51 rotatably connected to the frame 1 and a slide 52 slidably connected to the spline shaft 51, and the slide 52 is slidably connected to the ring 41; the two first guide units 6 are arranged front and back along the cable conveying direction, and during the sliding of the slide 52 along the spline shaft 51, each first guide unit 6 drives the two cutters 421 to slide and close to the skin cutting station, and then drives the ring 41 to rotate through the transmission component 8 so that the two cutters 421 can cut the cable skin; the second guide unit 7 is located between the two first guide units 6, and during the sliding of the slide 52 along the spline shaft 51, the second guide unit 7 drives the two cutters 421 to slide and close to the cutting station. Among them, the blade of each cutter 421 is V-shaped, and the angle of the V-shape is preferably 90 degrees. At this point, when the transmission component 8 drives the ring 41 to rotate by 90 degrees, the two cutters 421 can complete the ring cutting process. Based on this, the two cutters 421 are preferably arranged in a staggered manner forward and backward along the cable conveying direction, and the opposite sides of the two cutters 421 when closed are in contact with each other, so that the two cutters 421 can slide together to the cutting station to cut the cable.

[0035] Among them Figure 1 As shown, the wire transmission mechanism 3 includes two relatively arranged first driving wheels and second driving wheels, the first driving wheel is rotatably connected to the frame 1, and the second driving wheel is slidably connected to the frame 1 through a sliding assembly, wherein the sliding assembly includes an adjusting screw, a light rod arranged parallel to the adjusting screw, and a moving block sliding on the light rod, and the moving block is threadedly connected to the adjusting screw, and the second driving wheel is rotatably connected to the moving block, so that when the adjusting screw is driven to rotate, the moving block can be driven to slide straightly along the light rod, so that the second driving wheel and the first driving wheel are closed to clamp the cable, thereby facilitating the subsequent driving of the cable wound on the bobbin 2 to be released.

[0036] Specifically, when the sliding part 5 slides linearly along the spline shaft 51, it has three strokes. In the first stroke, the two cutters 421 are forced to cut into the cable sheath through the first first guide unit 6, and then the two cutters 421 are driven by the transmission component 8 to rotate with the ring 41, thereby completing the first ring cutting process; in the second stroke, the two cutters 421 are forced to cut the cable through the second guide unit 7, thereby completing the cutting operation between the laid cable and the cable wound on the bobbin 2; in the third stroke, the two cutters 421 are forced to cut into the sheath of the laid cable end through the second first guide unit 6, and then the two cutters 421 are driven by the transmission component 8 again to rotate with the ring 41, and then the sheath of the laid cable end is subjected to the ring cutting process. In summary, the above process can not only cut the cable, but also perform ring cutting on the cable that has been cut and laid on the bridge and the cable with the end released after being wound on the reel 2 to expose the wire core, thereby facilitating the subsequent staff to install the cable connector, without the need for the staff to use other tools for ring cutting and cutting operations, which not only improves the practicability of the entire device, but also greatly reduces the work intensity of the staff and improves the laying efficiency.

[0037] Among them, each first guide unit 6 includes two coaxial first arc rings 61 whose inner side surfaces are first conical surfaces 62, and the two first conical surfaces 62 are arranged opposite to each other; the second guide unit 7 includes two coaxial second arc rings 71 whose inner side surfaces are second conical surfaces 72, and the two second conical surfaces 72 are arranged opposite to each other, and the taper of the second conical surface 72 is greater than the taper of the first conical surface 62.

[0038] Each cutting unit 42 further comprises a slide rail 422 arranged on the side of the ring 41, and the cutter 421 is slidably connected to the slide rail 422 through a connecting rod 423, and a first spring 425 is arranged between the connecting rod 423 and the slide rail 422, one end of the first spring 425 is fixedly connected to the slide rail 422, and the other end is fixedly connected to the connecting rod 423, and an abutment block 424 abutting and cooperating with each first conical surface 62 or each second conical surface 72 is fixedly connected to the connecting rod 423. Based on this, the length direction of the first spring 425 is the length direction of the slide rail 422, and the process of the two first springs 425 restoring elasticity drives the two cutters 421 to slide apart. It should be noted that the abutment block 424 is preferably a truncated cone shape so as to abut and cooperate with each first conical surface 62 and the second conical surface 72. Thus, when the abutment block 424 abuts and cooperates with the corresponding first conical surface 62, the two cutters 421 can cut into different depths, so that it is suitable for cables with different diameters, further improving the practicality of the entire device.

[0039] It should be noted that the curvature of the two first arc rings 61 of each first guide unit 6 and the curvature of the two second arc rings 71 of the second guide unit 7 are preferably 130 degrees. Figure 5 As shown, the arc of the gap between the two oppositely arranged first arc rings 61 is 50 degrees, so that after the two cutters 421 cut the surface, the two abutment blocks 424 will not touch the first arc rings 61, so that the cutters 421 will not damage the wire core in the cable.

[0040] Based on this, when the ring 41 follows the sliding part 5 and slides linearly along the spline shaft 51 in the direction from the wide end of the first conical surface 62 in the first guide unit 6 to the narrow end of the first conical surface 62, the two abutment blocks 424 can abut and cooperate with the first conical surface 62 to make the two cutters 421 slide and close to the skin cutting station, and then the ring 41 is driven to rotate in the first direction through the transmission assembly 8, and each abutment block 424 is always abutted on the corresponding first conical surface 62, so that the skin of the cable can be cut; and when each abutment block After 424 disengages from the corresponding first conical surface 62, the abutment block 424 is located at the gap between the two first arc rings 61, so that it is convenient to drive the ring 41 to slide in a straight line along the spline shaft 51; it should be further explained that the speed at which the first driving wheel and the second driving wheel pull the cable to be released is consistent with the speed at which the ring 41 follows the slide 52 to slide in a straight line along the spline shaft 51, so as to ensure that the two cutters 421 and the cable are at the same speed and maintain a relatively static state, thereby facilitating the two cutters 421 to perform circular cutting on the cable skin.

[0041] Among them, before the two abutment blocks 424 abut against the corresponding second conical surfaces 72, the transmission assembly 8 drives the ring 41 to rotate a certain angle so as to abut against the corresponding second conical surfaces 72, and when the ring 41 follows the sliding portion 5 along the spline shaft 51 and slides in a straight line direction from the wide end of the second conical surface 72 to the narrow end, the abutment blocks 424 abut against the corresponding second conical surface 72 to make the two cutters 421 slide and close to the cutting station, thereby achieving the effect of cutting the cable; it should be further explained that the speed at which the first driving wheel and the second driving wheel pull the cable to be unfolded is consistent with the speed at which the ring 41 follows the slide 52 to slide in a straight line along the spline shaft 51, thereby ensuring that the two cutters 421 and the cable are at the same speed and maintained in a relatively static state, thereby facilitating the two cutters 421 to cut the cable.

[0042] Based on the above, the specific working process of the two abutment blocks 424 includes: first, abutting and cooperating with the corresponding first conical surface 62 in the first guide unit 6 (here is the first first guide unit 6) close to the wire drum 2, and then driving the two abutment blocks 424 to rotate on the corresponding first conical surface 62 through the transmission component 8 until they are disengaged from the corresponding first arc ring 61, thereby completing the first process of cutting the cable skin (cutting the skin of the release end of the cable wound on the reel); secondly, the two abutment blocks 424 abut and cooperate with the second conical surface 72 to complete the cable cutting process; finally, the two abutment blocks 424 abut and cooperate with the corresponding first conical surface 62 in another first guide unit 6 (here is the second first guide unit 6), and finally, the two abutment blocks 424 are driven to rotate on the corresponding first conical surface 62 again through the transmission component 8 until they are disengaged, thereby completing the second process of cutting the cable skin (cutting the skin of the cable end laid on the bridge after being cut).

[0043] The sliding distances of the cones along the generatrix of the first cone surface 62 are different so that the two cutters 421 can cut cables of different diameters in the skin cutting station, thereby improving the practicality of the entire device.

[0044] As a preferred embodiment of the present invention, the transmission assembly 8 includes a first gear 81 and a second gear 82, wherein the first gear 81 is coaxially fixedly connected to the ring 41; the second gear 82 is coaxially slidably connected to the spline shaft 51 through a spline sleeve 83, and the spline sleeve 83 is coaxially rotatably connected to the slide 52. It should be noted that the outer surface of the shaft of the spline shaft 51 is provided with a keyway along the length direction of the spline shaft 51, and the inner side wall of the spline sleeve 83 is provided with a corresponding keyway, so that the spline sleeve 83 can not only keep rotating synchronously with the spline shaft 51, but also the spline shaft 51 can slide linearly along the length direction of the spline shaft 51. Based on this, a first motor is provided on the frame 1, and the output shaft of the first motor is coaxially fixedly connected to the spline shaft 51.

[0045] The machine also includes a driving assembly for driving the slide 52 to slide linearly along the spline shaft 51, the driving assembly is a reciprocating screw 9, the main shaft of the reciprocating screw 9 is rotatably connected to the frame 1, and the slider of the reciprocating screw 9 is fixedly connected to the slide 52. Based on this, the frame 1 is provided with a second motor, and the output shaft of the second motor is coaxially fixedly connected to the main shaft of the reciprocating screw 9.

[0046] Among them, an annular groove is provided on the circular ring 41, and two symmetrically arranged guide rods are fixedly connected to the slider of the reciprocating screw 9, and one end of the two guide rods away from the slider of the reciprocating screw 9 is fixedly connected with a guide block located in the annular groove. Among them, it should be noted that the guide block is spherical, and the diameter of the guide block is larger than the diameter of the cross-sectional area in the length direction of the guide rod. At this point, the guide block is stuck in the annular groove and can slide along the circular path of the annular groove. Based on this, when the slider of the reciprocating screw 9 is driven by the main shaft of the reciprocating screw 9 to move linearly, the cooperation between the guide block and the annular groove can drive the circular ring 41 to move linearly; when the two cutters 421 cut into the cable skin, at this time, when the transmission assembly 8 drives the circular ring 41 to rotate, the two guide blocks slide in the annular groove.

[0047] Specifically, when the second motor drives the main shaft of the reciprocating screw 9 to rotate, the slider of the reciprocating screw 9 moves linearly along the cable conveying direction under the limit of the slide 52, and the slide 52 can move linearly along the spline shaft 51 until the two abutment blocks 424 abut and cooperate with the corresponding first conical surfaces 62 in the first first guide unit 6 to make the two cutters 421 close to the axis of the ring 41 and cut into the cable sheath, and then the first motor drives the spline shaft 51 to rotate to make the spline sleeve 83 rotate, and the second gear 82 fixed on the spline sleeve 83 also rotates to make the first gear 81 meshing with the second gear 82 rotate, thereby driving the ring 41 to rotate and drive the two cutters 421 to perform circular cutting along the cable until the two cutters 421 are respectively located at the two notches, thereby completing the first circular cutting process; after that, the second motor continues to drive the entire cutting assembly 4 to move linearly until it completely crosses the first guide unit 6, and at this time, the first motor drives the ring 41 to rotate a certain angle (such as Figure 8 As shown), the second motor then drives the entire device to continue moving in a straight line until the two cutters 421 abut against the second conical surfaces 72 through the corresponding abutment blocks 424, so that the two cutters 421 slide together to cut the cable, and then the second motor drives the entire device to continue moving in a straight line until the two cutters 421 abut against the two second conical surfaces 72 in the second first guide unit 6 through the corresponding abutment blocks 424, and finally the ring 41 is driven to rotate again through the transmission assembly 8 so that the two cutters 421 perform a second circular cutting operation, thereby completing the second circular cutting process.

[0048] Based on the above, the entire device can perform the ring cutting operation only through the first first guide unit 6 or the second first guide unit 6, so that the ring cutting process can be performed on one end or both ends of the laid cable, thereby further improving the practicality of the entire device.

[0049] As a further preferred embodiment of the present invention, a one-way output mechanism 10 is provided between the main shaft of the reciprocating screw 9 and the spline shaft 51, and the one-way output mechanism 10 includes a first ratchet pawl assembly 101, a second ratchet pawl assembly 102, a third gear 103, a fourth gear 104 and a driving motor, the first ratchet pawl assembly 101 includes a first pawl coaxially elastically rotatably connected to the main shaft of the reciprocating screw 9 and a first ratchet rotatably connected to the frame 1 and engaged with the first pawl; the second ratchet pawl assembly 102 includes a second pawl coaxially elastically rotatably connected to the spline shaft 51 and a second ratchet rotatably connected to the frame 1 and engaged with the second pawl; the third gear 103 is coaxially fixedly connected to the first ratchet; the fourth gear 104 is coaxially fixedly connected to the second ratchet, and the fourth gear 104 is meshed with the third gear 103; the output shaft of the driving motor is coaxially fixedly connected to the first ratchet. It should be noted that a first torsion spring is provided between the first pawl and the main shaft of the reciprocating screw 9, and the first torsion spring is sleeved on the main shaft of the reciprocating screw 9, one end of the first torsion spring is fixedly connected to the main shaft of the reciprocating screw 9, and the other end is fixedly connected to the first pawl; a second torsion spring is provided between the second pawl and the spline shaft 51, and the second torsion spring is sleeved on the spline shaft 51, one end of the second torsion spring is fixedly connected to the spline shaft 51, and the other end is fixedly connected to the second pawl. Specifically, when the output shaft of the driving motor rotates in the first direction, the first pawl engages with the first ratchet wheel to rotate the main shaft of the reciprocating screw 9 and drive the slider of the reciprocating screw 9 to drive the slide 52 to move linearly; when the output shaft of the driving motor rotates in the second direction, the first pawl does not engage with the first ratchet wheel, and at the same time, the second ratchet wheel is driven to rotate and engage with the second pawl under the cooperation of the third gear 103 and the fourth gear 104 to drive the spline shaft 51 to rotate. At this point, based on this solution, the main shaft or spline shaft 51 of the reciprocating screw 9 can be rotated with the help of only one drive motor.

[0050] It should be noted that, as a further preferred embodiment of the present invention, Figure 1 As shown, the frame 1 is also provided with a tensioning mechanism, which includes two tensioning wheels that slide and are connected to the frame 1, and the two tensioning wheels are arranged opposite to each other. A second spring (not shown in the figure) is provided between each tensioning wheel and the frame 1. The process of restoring the deformation of each second spring drives the corresponding tensioning wheel to slide, so that the two tensioning wheels slide together to squeeze the cable, so that the cable between the line transmission mechanism 3 and the two tensioning wheels is in a tensioned state, so that the cable can be subsequently ring-cut and cut.

[0051] As another embodiment of the present invention, Figure 12-15As shown, a positioning ring 11 is fixedly connected to the slide 52, and two push rods 12 are fixedly connected to the circular ring 41 and are arranged symmetrically with respect to the axis of the circular ring 41. An annular groove 13 is provided on the positioning ring 11, and one end of each push rod 12 away from the circular ring 41 is located in the annular groove 13. The positioning ring 11 is provided with a clamping assembly for clamping the cable, and the clamping assembly includes two clamping units arranged symmetrically with respect to the axis of the positioning ring 11, and each clamping unit includes an eccentric arc block 14 elastically slidably connected to the positioning ring 11 in a radial direction, and a clamping plate 15 is elastically slidably connected to the eccentric arc block 14. The rotation process of the circular ring 41 can drive the two push rods 12 to slide along the annular groove 13 so that each push rod 12 abuts and cooperates with the corresponding eccentric arc block 14, so that the two clamping plates 15 close to the axis of the positioning ring 11 to clamp the cable. Among them, a third spring is provided between the eccentric arc block 14 and the positioning ring 11, and the process of the third spring restoring elastic deformation drives the corresponding eccentric arc block 14 to slide radially away from the axis of the positioning ring 11. It should be noted that the eccentric arc block 14 has a guide edge 141 and a fan-shaped edge 142. The guide edge 141 allows the corresponding push rod 12 to slide along the guide edge 141 and abut against the eccentric arc block 14. When the push rod 12 abuts against the fan-shaped edge 142, the two clamps 15 are in a clamping state of clamping the cable. Fig.13 As shown, the fan-shaped edge 142 of the eccentric arc block 14 preferably has an arc of 145 degrees, and the arc of the guide edge 141 is 5 degrees. So far, when the transmission component 8 drives the ring 41 to rotate 150 degrees, the two clamps 15 will be in a state of clamping the cable. When the rotation angle is between 150-180, the two push rods 12 will be separated from the corresponding eccentric arc block 14, and the eccentric arc block 14 will slide radially and reset under the elastic force of the third spring to restore the elastic deformation, so that the two clamps 15 release the clamping of the cable. It should be further explained that an elastic telescopic rod is provided between each clamp 15 and the corresponding eccentric arc block 14, and the process of each elastic telescopic rod restoring the elastic deformation drives the clamp 15 away from the corresponding eccentric arc block 14, so that it is suitable for clamping cables of different diameters. At the same time, it should be further explained that when the two clamps 15 are in a clamped state, the fan-shaped edge 142 of the eccentric arc block 14 and the annular groove 13 are in a partially overlapping state.

[0052] Specifically, when the transmission assembly 8 drives the ring 41 to rotate, the two push rods 12 slide along the circular path of the annular groove 13, and the two push rods 12 move along the corresponding guide edge 141 to the fan-shaped edge 142 of the eccentric arc block 14, so that the two eccentric arc blocks 14 slide radially until the two clamping plates 15 clamp the cable; therefore, when cutting the cable, Fig.14As shown, at this time, it is preferred to rotate the two cutters 421 along the second conical surface 72 by 5-10 degrees to drive the two push rods 12 to move from the guide edge 141 to the fan-shaped edge 142 so that the two clamps 15 clamp the cable, and the two cutters 421 maintain the rotation angle and continue to move linearly after cutting the cable until the two abutment blocks 424 abut and cooperate with the first conical surface 62 of the corresponding second first guide unit 6. This process can make the two first conical surfaces 62 of the second first guide unit 6 cooperate with the corresponding abutment blocks 424, and when the ring cutting operation is performed through the transmission assembly 8, at this time, the end of the cable laid on the bridge is still in a taut state, thereby facilitating the two cutters 421 to better perform the ring cutting and stripping operation, thereby further improving the practicality of the entire device.

[0053] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cable laying device for a bridge with a cutting function, comprising a frame, a wire drum rotatably connected to the frame, and a wire transmission mechanism arranged on the frame for laying out the cable, characterized in that: The frame is provided with a shearing mechanism, and the shearing mechanism comprises: A cutting assembly, comprising a circular ring and two cutting units arranged symmetrically about the axis of the circular ring, each of the cutting units comprising a cutter elastically slidably connected to the side of the circular ring, wherein the two cutters have a skin cutting station for cutting into the cable skin and a cutting station for cutting the cable in the sliding and closing stroke; The sliding part includes a spline shaft rotatably connected to the frame and a slide table slidably connected to the spline shaft, wherein the slide table is slidably connected to the ring; Two first guide units are arranged front and back along the cable conveying direction. When the slide table slides along the spline shaft, each first guide unit drives two cutters to slide and close to the skin cutting station, and then drives the ring to rotate through the transmission component so that the two cutters cut the cable skin; The second guide unit is located between the two first guide units. When the slide table slides along the spline shaft, the second guide unit drives the two cutters to slide and close to the cutting position; The transmission assembly comprises: A first gear coaxially fixedly connected to the ring; The second gear is coaxially slidably connected to the spline shaft through a spline sleeve, and the spline sleeve is coaxially rotatably connected to the slide; It also includes a driving assembly for driving the slide table to slide linearly along the spline shaft, wherein the driving assembly is a reciprocating screw, the main shaft of the reciprocating screw is rotatably connected to the frame, and the slider of the reciprocating screw is fixedly connected to the slide table; A one-way output mechanism is provided between the main shaft of the reciprocating screw and the spline shaft, and the one-way output mechanism comprises: A first ratchet pawl assembly, comprising a first pawl coaxially and elastically rotatably connected to the main shaft of the reciprocating screw and a first ratchet rotatably connected to the frame and engaged with the first pawl; A second ratchet pawl assembly comprises a second pawl coaxially and elastically rotatably connected to the spline shaft and a second ratchet rotatably connected to the frame and engaged with the second pawl; A third gear, which is coaxially fixedly connected to the first ratchet wheel; a fourth gear coaxially fixedly connected to the second ratchet wheel and meshing with the third gear; The drive motor has an output shaft coaxially fixedly connected with the first ratchet. When the output shaft rotates in a first direction, it only drives the first pawl to engage with the first ratchet to rotate the main shaft of the reciprocating screw. When the output shaft rotates in a second direction, it only drives the second pawl to engage with the second ratchet to rotate the spline shaft.

2. A cable bridge laying device with cutting function according to claim 1, characterized in that: Each first guide unit comprises two coaxial first arc rings whose inner side surfaces are first conical surfaces, and the two first conical surfaces are arranged opposite to each other; The second guide unit comprises two coaxial second arc rings whose inner side surfaces are second conical surfaces. The two second conical surfaces are arranged opposite to each other, and the taper of the second conical surfaces is greater than that of the first conical surfaces.

3. The cable laying device with cutting function according to claim 2, characterized in that: Each of the cutting units also includes a slide rail arranged on the side of the circular ring, and the cutter is slidably connected to the slide rail through a connecting rod. A first spring is provided between the connecting rod and the slide rail, one end of the first spring is fixedly connected to the slide rail, and the other end is fixedly connected to the connecting rod. An abutment block that abuts and cooperates with each first conical surface or each second conical surface is fixedly connected to the connecting rod.

4. The cable laying device with cutting function according to claim 1, characterized in that: The blade of each cutter is V-shaped.

5. The cable laying device with cutting function according to claim 1, characterized in that: An annular groove is provided on the circular ring, and two symmetrically arranged guide rods are fixedly connected to the slider of the reciprocating screw. One end of the two guide rods away from the slider of the reciprocating screw is fixedly connected to a guide block located in the annular groove.

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