Disclosure of Invention
The invention aims to solve the problems that in the prior art, the labor intensity of peeling operation is high, the peeling operation efficiency is low, and the potential safety hazard of electric shock is easily caused due to the fact that an operation mode of manually peeling an insulating layer of an overhead cable is adopted, and provides a rotary type peeling machine for cables, which can be applied to the overhead cable and can realize automatic peeling.
The technical scheme of the invention is as follows:
a rotary peeling machine for cables comprises an insulating holding rod, a machine shell, a rotary driving mechanism and a peeling mechanism, wherein one end of the insulating holding rod is fixedly connected with the machine shell; the peeling mechanism comprises a rotary machine base, a guide rod arranged on the rotary machine base, two cable holding claws which slide along the guide rod, a peeling knife device arranged on the cable holding claws, a driving screw rod which is rotatably arranged on the rotary machine base and is parallel to the guide rod, and a screw rod driving motor for rotating the driving screw rod, wherein the rotary driving mechanism is arranged on the machine shell and is used for driving the rotary machine base to rotate, two sections of screw thread sections with opposite spiral directions are arranged on the driving screw rod, one section of screw thread section is in threaded connection with one cable holding claw, the other section of screw thread section is in threaded connection with the other cable holding claw,
the stripping device comprises a rotary cutting assembly arranged on one cable holding claw and an annular cutting assembly arranged on the other cable holding claw, wherein the annular cutting assembly comprises a first torsion spring, an annular cutting blade rotationally arranged on the cable holding claw through a first rotating shaft and a first limiting piece arranged on the cable holding claw, the annular cutting blade is provided with a cutter point, the annular cutting blade abuts against the first limiting piece under the action of the first torsion spring, the first rotating shaft is parallel to a rotating shaft of the rotating machine base, and the annular cutting blade is vertical to the rotating shaft of the rotating machine base; the rotary cutting assembly comprises a second torsion spring, a rotary cutting blade and a second limiting piece, the rotary cutting blade is rotatably arranged on the cable holding claw through a second rotating shaft, the second limiting piece is arranged on the cable holding claw, the rotary cutting blade is provided with a cutter point, the rotary cutting blade is abutted against the second limiting piece under the action of the second torsion spring, the second rotating shaft is perpendicular to the ring cutting blade, and an included angle between the ring cutting blade and a rotating shaft of the rotating machine base is 75-88 degrees.
The rotary type peeler for cable of this scheme, it can be adapted to and use on aerial [ insulated ] cable, realizes automatic skinning to effectively overcome the operating mode who adopts the manual insulating layer that strips aerial [ insulated ] cable among the prior art, it is big to have the operation intensity of labour of skinning, and the operating efficiency of skinning is low, has the problem of the potential safety hazard of electric shock easily.
Preferably, when the lead screw driving motor drives the lead screw to rotate, so that the two cable holding claws are close to each other and hold the cable, the cutter point and a part of the cutter edge of the rotary cutter blade cut into the insulating layer of the cable, and the cutter point and a part of the cutter edge of the circular cutter blade also cut into the insulating layer of the cable;
then, in the process that the rotary driving mechanism drives the rotary machine base, the rotary cutting assembly and the circular cutting assembly to rotate clockwise, the insulating layer of the cable acts on the annular cutting blade, and the annular cutting blade is driven to be pressed on the first limiting piece, so that the annular cutting blade cuts the insulating layer of the cable; the acting force of the insulating layer of the cable on the rotary-cut blade drives the rotary-cut blade to be separated from the second limiting piece, and the cutter point of the rotary-cut blade is abutted against the surface of the insulating layer of the cable under the action of the second torsion spring;
in the process that the rotary driving mechanism drives the rotary machine base, the rotary cutting assembly and the circular cutting assembly to rotate clockwise and reversely, the insulating layer of the cable acts on the rotary cutting blade to drive the rotary cutting blade to be pressed on the second limiting piece, so that the rotary cutting blade cuts the insulating layer of the cable; the insulating layer of cable acts on the effort on ring cutter piece, and drive ring cutter piece and first locating part separation, the knife tip of ring cutter piece supports on the surface of the insulating layer of cable under the effect of first torsional spring.
Preferably, the cutting edge of the ring-cutting blade faces the rotation axis of the rotary housing. Therefore, when the two cable holding claws approach to each other and hold the cable, the tool tip and a part of the tool edge of the circular cutting blade can smoothly cut into the insulating layer of the cable.
Preferably, the cutting edge of the circular cutting blade is arranged on the side of the circular cutting blade facing the rotating shaft of the rotating base. Therefore, when the two cable holding claws approach to each other and hold the cable, the tool tip and a part of the tool edge of the circular cutting blade can smoothly cut into the insulating layer of the cable.
Preferably, the cutting edge of the rotary cutting blade faces the rotation axis of the rotary housing. Therefore, when the two cable holding claws approach to each other and hold the cable, the cutter point and a part of the cutter edge of the rotary cutter blade can smoothly cut into the insulating layer of the cable.
Preferably, the cutting edge of the rotary cutter blade is disposed on a side of the rotary cutter blade facing the rotary shaft of the rotary housing. Therefore, when the two cable holding claws approach to each other and hold the cable, the cutter point and a part of the cutter edge of the rotary cutter blade can smoothly cut into the insulating layer of the cable.
Preferably, the circular cutting blades are two and parallel, the two circular cutting blades are fixed on the first rotating shaft, and the tool tip of the rotary cutting blade is located between the planes of the two circular cutting blades.
Preferably, the rotary driving mechanism comprises a rotary shaft sleeve arranged in the casing in a rotating mode, a driven gear coaxially arranged on the rotary shaft sleeve, a driving gear arranged in the casing and meshed with the driven gear and a gear driving motor used for driving the driving gear to rotate, one end of the rotary shaft sleeve extends out of the casing, a shaft sleeve passing cable port is formed in the rotary shaft sleeve, the shaft sleeve passing cable port extends along the axis of the rotary shaft sleeve and is communicated with the two ends of the rotary shaft sleeve, a gear corresponding to the shaft sleeve passing cable port is arranged on the driven gear, a casing passing cable port corresponding to the shaft sleeve passing cable port is formed in the casing, the peeling mechanism is located on the outer side of the casing, the rotary base is fixed to one end of the rotary shaft sleeve, and the rotary shaft of the rotary base is coaxial with the axis of the rotary shaft sleeve. Due to the arrangement of the shaft sleeve cable passing opening, the gear cable passing opening and the casing cable passing opening, when the cable clamp is used specifically, the gear driving motor drives the driving gear and the driven gear to rotate, so that the shaft sleeve cable passing opening and the gear cable passing opening are aligned with the casing cable passing opening, then an overhead cable can move into the rotating shaft sleeve through the casing cable passing opening, the gear cable passing opening and the shaft sleeve cable passing opening, and the overhead cable is positioned between the two cable holding claws; then, the screw rod driving motor works to drive the screw rod to rotate, so that the two cable holding claws are driven to mutually approach to hold the overhead cable (slightly hold the overhead cable), and the rotary cutting blade and the circular cutting blade are respectively cut into an insulating layer of the overhead cable; and then, the gear driving motor works again, and the driven gear, the rotating shaft sleeve and the peeling mechanism are driven to rotate together through the driving gear, so that the automatic peeling of the insulating layer of the aerial cable is realized.
Preferably, the driven gear is further provided with a third torsion spring and an arc-shaped rack, a supporting step is further arranged on one side of the gear, which passes through the cable port, one end of the arc-shaped rack is rotatably arranged on the driven gear through a third rotating shaft, the other end of the arc-shaped rack is abutted to the supporting step under the action of the third torsion spring, at the moment, the arc-shaped rack is used for supplementing the gear teeth of the driven gear, which pass through the cable port, and the driven gear and the arc-shaped rack jointly form a complete gear. Therefore, the gear cable passing opening can be opened by rotating the arc-shaped rack, so that the overhead cable can move into the rotating shaft sleeve through the shell cable passing opening, the gear cable passing opening and the shaft sleeve cable passing opening; after the other end of the arc-shaped rack is abutted against the supporting step under the action of the torsion spring, the driven gear and the arc-shaped rack jointly form a complete gear, so that the gear driving motor can smoothly drive the driven gear to continuously rotate through the driving gear.
Preferably, the other end of the arc-shaped rack is provided with a supporting block, and the supporting block at the other end of the arc-shaped rack is abutted against the supporting step under the action of the torsion spring.
Preferably, the two cable holding claws are symmetrically distributed on two sides of a rotating shaft of the rotating base.
Preferably, two opposite side surfaces of the two cable holding claws are respectively provided with a cable holding groove, and the cable holding grooves extend along the axial direction of the rotating shaft sleeve.
Preferably, the cross section of the cable holding groove is V-shaped or circular arc-shaped.
Preferably, the device further comprises an insulating holding rod, one end of the insulating holding rod is fixedly connected with the machine shell, and the insulating holding rod is perpendicular to a rotating shaft of the rotating machine base.
The invention has the beneficial effects that: the automatic peeling machine can realize automatic peeling of the insulating layer of the overhead cable, and therefore the problems that in the prior art, the manual peeling operation mode of the insulating layer of the overhead cable is adopted, the labor intensity of peeling operation is high, the peeling operation efficiency is low, and the potential safety hazard of electric shock exists easily are effectively solved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the embodiments of the invention are not limited correspondingly in scope. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: as shown in fig. 1, 2, 3, 4 and 5, a rotary type cable stripper includes a holding rod 1, a housing 2, a rotary driving mechanism and a stripping mechanism. One end of the holding rod is fixedly connected with the shell. In this embodiment, the holding rod is an insulating holding rod, and one end of the holding rod is fixedly connected with the casing through a bolt.
The rotary driving mechanism comprises a rotary shaft sleeve 4 which is rotatably arranged in the shell, a driven gear 3 which is coaxially arranged on the rotary shaft sleeve, a driving gear 6 which is arranged in the shell and is meshed with the driven gear, and a gear driving motor which is used for driving the driving gear to rotate. One end of the rotary shaft sleeve extends out of the shell. The driven gear is fixedly connected with the rotating shaft sleeve. The rotating shaft sleeve is provided with a shaft sleeve cable passing port 4.1, and the shaft sleeve cable passing port extends along the axis of the rotating shaft sleeve and is communicated with two ends of the rotating shaft sleeve. The driven gear is provided with a gear cable passing port 3.1 corresponding to the cable passing port of the shaft sleeve, and the gear cable passing port is communicated with the cable passing port of the shaft sleeve. The shell is provided with a shell cable passing port 2.1 corresponding to the shaft sleeve cable passing port, and the shell cable passing port extends along the axis of the rotating shaft sleeve and penetrates through two side faces of the shell. When the shaft sleeve passes through the cable opening, the gear passes through the cable opening and the casing passes through the cable opening and aligns the back, the aerial [ insulated ] cable can pass through the casing and pass through the cable opening, the gear passes through the cable opening and the shaft sleeve passes through the cable opening and moves to in the axis of rotation cover.
The peeling mechanism 5 is located outside the housing. The peeling mechanism 5 comprises a rotary machine base 5.1, a guide rod 5.2 arranged on the rotary machine base, two cable holding claws 5.3 sliding along the guide rod, a peeling knife device arranged on the cable holding claws, a driving screw rod 5.4 which is rotationally arranged on the rotary machine base and is parallel to the guide rod, and a screw rod driving motor for rotationally driving the screw rod. The rotary drive mechanism is arranged on the casing and used for driving the rotary base to rotate, and specifically, the rotary base is fixed on one end of a rotary shaft sleeve extending out of the casing. The axis of the driving screw rod is vertical to the rotating shaft of the rotating base. The rotating shaft of the rotating base is coaxial with the axis of the rotating shaft sleeve. In this embodiment, the insulating holding rod is perpendicular to the rotating shaft of the rotating base.
The two cable holding claws 5.3 are distributed on two sides of the rotating shaft of the rotating base, and in the embodiment, the two cable holding claws are symmetrically distributed on two sides of the rotating shaft of the rotating base; the number of the guide rods is two; one end of the rotating shaft sleeve is provided with an installation plate 4.2 which is formed by extending outwards, the installation plate is positioned outside the casing, and the rotating base is fixedly connected with the installation plate through welding or bolts. Space between the claws is embraced to two cables forms embraces cable mouth 5.8, embraces cable mouth and axle sleeve and crosses the opening of cable mouth towards same one side.
The driving screw rod 5.4 is provided with two sections of thread sections 5.41 with opposite spiral directions, wherein one section of thread section is connected with one cable holding claw through threads, and the other section of thread section is connected with the other cable holding claw through threads; specifically, threaded holes are formed in the two cable holding claws, the two sections of threaded sections correspond to the threaded holes in the two cable holding claws one by one, and the threaded sections are connected with the corresponding threaded holes in the cable holding claws through threads.
The stripping knife device comprises a rotary cutting component 5.5 arranged on one cable holding claw and an annular cutting component 5.6 arranged on the other cable holding claw.
The circular cutting assembly 5.5 includes a first torsion spring, a circular cutting blade 5.52 rotatably disposed on the cable-holding claw through a first rotating shaft 5.51, and a first limiting member 5.53 disposed on the cable-holding claw. The ring-cutting blade is provided with a blade tip and is propped against the first limiting piece under the action of the first torsion spring. The first rotating shaft is parallel to the rotating shaft of the rotating base, and the circular cutting blade is vertical to the rotating shaft of the rotating base.
The rotary cutting assembly 5.6 includes a second torsion spring, a rotary cutting blade 5.62 rotatably disposed on the cable holding claw via a second rotating shaft 5.61, and a second limiting member 5.63 disposed on the cable holding claw. The rotary cutting blade is provided with a cutter point and is abutted against the second limiting piece under the action of the second torsion spring. The second rotating shaft is perpendicular to the ring cutting blade, the included angle between the ring cutting blade and the rotating shaft of the rotating base is 75-88 degrees, and in the embodiment, the included angle between the ring cutting blade and the rotating shaft of the rotating base is 80 degrees.
In this embodiment, as shown in fig. 1 and 5, the ring-cutting blade is located at the end of the cable holding claw close to the opening of the cable holding opening 5.8; the circular cutting blade is in a strip shape, the first rotating shaft is close to one end of the circular cutting blade, and the tool tip of the circular cutting blade is positioned at the other end of the circular cutting blade; when the circular cutting blade abuts against the first limiting part, the tool nose of the circular cutting blade extends towards the cable holding opening in an inclined mode. The rotary-cut blade is positioned at the end part of the cable holding claw close to the opening of the cable holding opening 5.8, the rotary-cut blade is in a long strip shape, the second rotating shaft is close to one end of the rotary-cut blade, and the cutter point of the rotary-cut blade is positioned at the other end of the rotary-cut blade; when the rotary-cut blade abuts against the second limiting piece, the cutter point of the rotary-cut blade extends towards the cable-holding opening in an inclined mode.
As shown in fig. 5, when the lead screw driving motor drives the lead screw to rotate, so that the two cable holding claws approach each other and hold the cable, the knife tip and a part of the knife edge of the rotary cutter blade cut into the insulating layer of the cable, and the knife tip and a part of the knife edge of the circular cutter blade also cut into the insulating layer of the cable;
then, in the process that the rotary driving mechanism drives the rotary machine base, the rotary cutting assembly and the circular cutting assembly to rotate clockwise, the insulating layer of the cable acts on the acting force of the circular cutting blade, and the circular cutting blade is tightly pressed on the first limiting piece so that the circular cutting blade cuts the insulating layer of the cable; the acting force of the insulating layer of the cable on the rotary-cut blade drives the rotary-cut blade to be separated from the second limiting piece, and the cutter point of the rotary-cut blade is abutted against the surface of the insulating layer of the cable under the action of the second torsion spring;
in the process that the rotary driving mechanism drives the rotary machine base, the rotary cutting assembly and the circular cutting assembly to rotate clockwise and anticlockwise, the insulating layer of the cable acts on the rotary cutting blade to drive the rotary cutting blade to be tightly pressed on the second limiting piece, so that the rotary cutting blade cuts the insulating layer of the cable; the insulating layer of cable acts on the effort on ring cutter piece, drives ring cutter piece and first locating part separation, and the knife tip of ring cutter piece is supported on the surface of the insulating layer of cable under the effect of first torsional spring.
In the rotary peeler for the cable of the embodiment, due to the arrangement of the cable passing port of the shaft sleeve, the cable passing port of the gear and the cable passing port of the shell, when in specific use,
firstly, an operator holds an insulating holding rod by hand, a driving gear and a driven gear are driven to rotate through a gear driving motor, so that a cable passing port of a shaft sleeve and a cable passing port of a gear are aligned with a cable passing port of a casing, then the gear driving motor stops working, the operator holds the insulating holding rod by hand, so that an overhead cable moves into a rotating shaft sleeve through the cable passing port of the casing, the cable passing port of the gear and the cable passing port of the shaft sleeve, and the overhead cable is positioned between two cable holding claws;
secondly, the screw rod driving motor works to drive the driving screw rod to rotate, and the driving screw rod drives the two cable holding claws to approach each other to hold the aerial cable (slightly hold the aerial cable) due to the fact that the spiral directions of the two sections of thread sections are opposite, at the moment, the aerial cable is approximately coaxial with the axis of the rotating shaft sleeve, the tool nose and a part of the tool nose of the rotary cutting blade cut into an insulating layer of the cable, and the tool nose and a part of the tool nose of the circular cutting blade also cut into the insulating layer of the cable;
thirdly, as shown in fig. 5, the gear driving motor is controlled to rotate forward, the driven gear, the rotating shaft sleeve, the rotary cutting assembly and the circular cutting assembly are driven by the driving gear to rotate clockwise for 360 degrees, in the process, the insulating layer of the cable acts on the circular cutting blade, the circular cutting blade is driven to be tightly pressed on the first limiting part, so that the circular cutting blade cuts the insulating layer of the cable, and the circular cutting blade is perpendicular to the rotating shaft of the rotating machine base, so that the insulating layer of the overhead cable is cut by the circular cutting blade in a circular shape after the circular cutting blade rotates for 360 degrees (the cutting track of the circular cutting blade on the insulating layer of the overhead cable is a circular ring); meanwhile, in the process, the action force of the insulating layer of the cable on the rotary-cut blade drives the rotary-cut blade to be separated from the second limiting piece, the tool nose of the rotary-cut blade is pressed against the surface of the insulating layer of the cable under the action of the second torsion spring and rotates around the cable, and the rotary-cut blade does not cut the insulating layer of the cable in the clockwise rotating process; therefore, in the process that the gear driving motor drives the rotating shaft sleeve, the rotary cutting assembly and the circular cutting assembly to rotate clockwise by 360 degrees, on one hand, the rotary cutting blade does not cut the insulating layer of the cable, and the circular cutting blade cuts the insulating layer of the overhead cable in an annular mode; on the other hand, when the rotary cutter blade and the ring cutter blade simultaneously cut the insulating layer of the cable, the ring cutter blade can be prevented from blocking the rotary peeler for the cable to move along the axial direction of the overhead cable, so that the rotary cutter blade can not smoothly and spirally cut the insulating layer of the overhead cable along the axial direction of the overhead cable (because the cutting track of the rotary cutter blade on the insulating layer of the overhead cable spirally extends along the axial direction of the overhead cable and drives the whole rotary peeler for the cable to move along the axial direction of the overhead cable);
fourthly, as shown in fig. 5, the gear driving motor is controlled to rotate reversely, the driven gear, the rotating shaft sleeve, the rotary cutting assembly and the circular cutting assembly are driven to rotate clockwise and reversely through the driving gear, in the process, the insulating layer of the cable acts on the circular cutting blade, the circular cutting blade is driven to be separated from the first limiting piece, the tool nose of the circular cutting blade abuts against the surface of the insulating layer of the cable under the action of the first torsion spring and rotates around the cable, and the circular cutting blade does not cut the insulating layer of the cable in the counterclockwise rotating process; meanwhile, in the process, the rotary-cut blade is driven to be tightly pressed on the second limiting piece by the acting force of the insulating layer of the cable on the rotary-cut blade, so that the rotary-cut blade cuts the insulating layer of the cable, and because the included angle between the rotary-cut blade and the rotating shaft of the rotary machine base is 80 degrees, the cutting track of the rotary-cut blade on the insulating layer of the overhead cable spirally extends along the axial direction of the overhead cable, and the whole cable is driven to move along the axial direction of the overhead cable by the rotary peeler; so, because this in-process, the ring cutter piece is at the anticlockwise rotation in-process not cutting the insulating layer of cable, therefore the ring cutter piece can not block the axial displacement of rotary type peeler for the cable along aerial [ insulated ] cable, guarantees the axial displacement of rotary type peeler for the cable along aerial [ insulated ] cable, and the axial spiral cutting aerial [ insulated ] cable of edge aerial [ insulated ] cable that makes rotary-cut blade can be smooth.
Fifthly, after the cable moves for a set distance along the axial direction of the overhead cable by the rotary peeling machine, the gear driving motor is controlled to rotate forwards again, the driven gear, the rotating shaft sleeve, the rotary cutting assembly and the circular cutting assembly are driven to rotate clockwise for 360 degrees through the driving gear, in the process, the acting force of the insulating layer of the cable on the rotary cutting blade drives the rotary cutting blade to be separated from the second limiting part, the cutter point of the rotary cutting blade is abutted against the surface of the insulating layer of the cable under the action of the second torsion spring and rotates around the cable, and the rotary cutting blade does not cut the insulating layer of the cable in the clockwise rotation process; meanwhile, the insulation layer of the cable acts on the acting force of the ring cutting blade, the ring cutting blade is driven to be tightly pressed on the first limiting piece, so that the ring cutting blade cuts the insulation layer of the cable, and after the ring cutting blade rotates 360 degrees, the ring cutting blade cuts the insulation layer of the overhead cable in a ring shape, so that the outer skin of the spiral insulation layer cut by the rotary cutting blade is cut off;
then, the gear driving motor drives the driven gear, the rotating shaft sleeve, the rotary cutting assembly and the circular cutting assembly to rotate together through the driving gear, and the gear driving motor stops working after the cable passing port of the shaft sleeve and the cable passing port of the gear are aligned with the cable passing port of the shell; lead screw driving motor drives the drive lead screw and rotates, makes two cable embrace claw alternate segregation, then, the insulating holding rod of operator's handheld is taken off the rotary type peeler for the cable on by aerial [ insulated ] cable, can realize peeling the automation to aerial [ insulated ] cable's insulating layer, therefore, it can effectively overcome the operating mode who adopts manual insulating layer that strips aerial [ insulated ] cable among the prior art, it is big to have the operation intensity of labour of peeling, and the operating efficiency of peeling is low, has the problem of the potential safety hazard of electric shock easily.
Further, as shown in fig. 2, the circular cutting blades 5.62 are two circular cutting blades, the two circular cutting blades are parallel, the two circular cutting blades are fixed on the first rotating shaft, and the knife tip of the rotary cutting blade is located between the planes of the two circular cutting blades. Thus, in the third step, the gear driving motor is controlled to rotate forwards, and in the process that the driving gear drives the driven gear, the rotating shaft sleeve, the rotary cutting assembly and the circular cutting assembly to rotate clockwise by 360 degrees, the circular cutting blade annularly cuts off the insulating layer of the overhead cable, and the two circular cutting blades cut two circular cutting tracks on the insulating layer of the overhead cable; in the fourth step, the gear driving motor is controlled to rotate reversely, and in the process of driving the rotary machine base, the rotary cutting assembly and the circular cutting assembly to rotate clockwise and reversely together, the initial cutting point of the rotary cutting blade can be ensured to be positioned between two annular cutting tracks cut on the insulating layer of the cable, so that the initial end of the spiral insulating layer skin cut by the rotary cutting blade is ensured to be cut off; in the fifth step, the gear driving motor is controlled to rotate positively, the driven gear, the rotating shaft sleeve, the rotary cutting assembly and the circular cutting assembly are driven by the driving gear to rotate clockwise by 360 degrees, the insulating layer of the overhead cable is cut off in a circular mode by the circular cutting blades, and two circular cutting tracks are cut off by the two circular cutting blades on the insulating layer of the overhead cable, so that the tail end of the spiral insulating layer outer skin cut by the rotary cutting blades is cut off.
Further, as shown in fig. 1, 2, and 5, the cutting edge of the ring-cutting blade faces the rotation axis of the rotary housing. Therefore, when the two cable holding claws approach to each other and hold the cable, the tool tip and a part of the tool edge of the circular cutting blade can smoothly cut into the insulating layer of the cable.
The cutting edge of the circular cutting blade is arranged on one side of the circular cutting blade facing the rotating shaft of the rotating base. Therefore, when the two cable holding claws approach to each other and hold the cable, the tool tip and a part of the tool edge of the circular cutting blade can smoothly cut into the insulating layer of the cable.
The knife point of the rotary-cut blade faces the rotating shaft of the rotating base. Therefore, when the two cable holding claws approach to each other and hold the cable, the cutter point and a part of the cutter edge of the rotary cutter blade can smoothly cut into the insulating layer of the cable.
The cutting edge of the rotary cutter blade is arranged on one side of the rotary cutter blade facing the rotating shaft of the rotary machine base. Therefore, when the two cable holding claws approach to each other and hold the cable, the cutter point and a part of the cutter edge of the rotary cutter blade can smoothly cut into the insulating layer of the cable.
Furthermore, as shown in fig. 3 and 4, the driven gear is further provided with a third torsion spring and an arc-shaped rack 3.2, one side of the gear passing through the cable port is further provided with a supporting step 3.3, one end of the arc-shaped rack is rotatably arranged on the driven gear through a third rotating shaft, the other end of the arc-shaped rack is abutted to the supporting step under the action of the third torsion spring, at the moment, the arc-shaped rack is used for supplementing the gear of the driven gear to pass through the missing gear teeth at the cable port, and the driven gear and the arc-shaped rack jointly form a complete gear. Therefore, the gear cable passing opening can be opened by rotating the arc-shaped rack, so that the overhead cable can move into the rotating shaft sleeve through the casing cable passing opening, the gear cable passing opening and the shaft sleeve cable passing opening; after the other end of the arc-shaped rack is abutted to the supporting step under the action of the third torsion spring, the driven gear and the arc-shaped rack jointly form a complete gear, so that the gear driving motor can smoothly drive the driven gear to continuously rotate through the driving gear.
The other end of the arc-shaped rack is provided with a supporting block 3.4, and the supporting block at the other end of the arc-shaped rack is propped against the supporting step under the action of a third torsion spring.
Further, as shown in fig. 1, two opposite side surfaces of the two cable holding claws are provided with cable holding grooves 5.7, and the cable holding grooves extend along the axial direction of the rotating shaft sleeve. The cross section of the cable holding groove is V-shaped or arc-shaped.
The cable is referred to herein as an aerial cable.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.