CN216649083U

CN216649083U - Cutting device

Info

Publication number: CN216649083U
Application number: CN202122597376.3U
Authority: CN
Inventors: 万曦; 邓文军; 路锐; 陆文钦; 傅强; 于洽; 贺磊; 奚振; 巢嘉君; 孙华琛
Original assignee: State Grid Corp of China SGCC; State Grid Jiangsu Electric Power Co Ltd; Changzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Jiangsu Electric Power Co Ltd; Changzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-05-31
Anticipated expiration: 2031-10-27

Abstract

The utility model relates to the field of cable cutting, in particular to a cutting device, which comprises: the cable cutting device comprises a bearing piece, a pushing assembly and a cutting piece, wherein a cable penetrates through the bearing piece, and the bearing piece is rotatably assembled relative to the cable; the pushing assembly is arranged on the bearing piece, and the bearing piece drives the pushing assembly to rotate around the cable; the cutting piece is connected with the driving end of the pushing assembly, the pushing assembly drives the cutting piece to feed or retreat along the radial direction of the cable, the cutting part of the cutting piece is arranged in an inclined mode, the inclination of the cutting part is the same as that of the reaction force cone of the cable, and the technical problem that in the prior art, the reaction force cone of the cable is not flat after being processed, so that the tip of the cable discharges, and the cable joint faults are frequent is solved.

Description

Cutting device

Technical Field

The utility model relates to the field of cable cutting, in particular to a cutting device.

Background

The cable is widely applied to various industries, and the high-voltage direct-current transmission power has the advantages of high transmission efficiency and low energy loss. Because it is the more economic characteristics of transmission of electricity relatively exchanging, widely used in long distance or super long distance transmission, when realizing super long distance transmission, need handle single cable joint to make many cables splice together, generally the insulating layer cutting at the joint of cable is the toper face, reaction force awl promptly, when adopting manual peeling off to cut, the glass piece is scraped the slope and the mode that the abrasive paper was polished is realized, wastes time and energy, and hardly reaches the construction technical standard. The manual stripping and cutting method enables the surface of the reaction force cone to be uneven, so that the point discharge of the cable is easily caused, and the frequent failure of the cable joint is caused; when a stripping and cutting device similar to a numerical control lathe is adopted, a rotating cutter is driven to move along the axial direction of a cable through numerical control programming, so that the cutting of an outer semiconductor layer and the machining of a reaction force cone are realized, but the surface of the reaction force cone is provided with threads, so that the surface of the reaction force cone is uneven, the tip of the cable is easily caused to discharge, and the fault frequency of a cable joint is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cutting device, which solves the technical problem that in the prior art, the reaction force cone surface of a cable is not flat after being processed, so that the point of the cable is discharged, and the fault of a cable joint is frequent. The technical scheme of the utility model is as follows:

a cutting device, comprising: the bearing piece is used for rotatably assembling the cable; the pushing assembly is arranged on the bearing piece, and the bearing piece drives the pushing assembly to rotate around the cable; the cutting piece is connected with the driving end of the pushing assembly, the pushing assembly drives the cutting piece to perform feeding or retreating action along the radial direction of the cable, the cutting part of the cutting piece is arranged in an inclined mode, and the inclination of the cutting part is the same as that of the reaction force cone of the cable.

According to an embodiment of the utility model, the cutting element is further provided with a positioning part, and the positioning part is arranged in parallel with the axial direction of the cable.

According to one embodiment of the utility model, the push assembly is mounted in a limited sliding manner relative to the carrier by means of a sliding pair.

According to one embodiment of the utility model, the pushing assembly comprises: pushing the driving member; the screw rod pair comprises a screw rod and a nut seat, the nut seat is limited by the sliding pair to rotate, the screw rod is connected with the pushing driving piece, the nut seat is connected with the cutting piece, and the pushing driving piece drives the cutting piece to perform feeding or retreating actions by means of the screw rod and the nut seat.

According to one embodiment of the utility model, the sliding pair comprises a T-shaped sliding rail formed on the bearing piece and a sliding block formed on one side of the nut seat, the sliding block is matched with the T-shaped sliding rail, and the sliding block limits the rotation of the nut seat.

According to one embodiment of the present invention, the bearing member includes a conductive portion and a connecting portion, the signal line of the push driving member is disposed in the conductive portion, and the connecting portion is connected to a rotary driving member, and the rotary driving member drives the bearing member to rotate.

According to one embodiment of the utility model, a bearing is arranged in the bearing part, an outer ring of the bearing is fixedly connected with the bearing part, and an inner ring of the bearing is connected with the support part.

According to one embodiment of the utility model, the cable connector further comprises two clamping assemblies, wherein the two clamping assemblies are arranged on the traveling path of the cable, and the bearing piece is positioned between the two clamping assemblies.

According to one embodiment of the utility model, the clamping assembly comprises two clamping pieces, the two clamping pieces are oppositely arranged to form a clamping channel, the cable is arranged in the clamping channel in a penetrating mode, one ends of the two clamping pieces are in hinged fit, and the other ends of the two clamping pieces are fixedly connected through a fastening piece.

According to one embodiment of the utility model, the clamping piece comprises a body and two clamping parts, the two clamping parts are arranged in a disconnected mode, the clamping parts extend out of the body, an avoiding gap is formed between the free ends of the clamping parts and the body, and after the cable extrudes the free ends of the clamping parts, the free ends of the clamping parts move towards the body in the avoiding gap.

Based on the structure, the utility model can realize the technical effects that:

1. the cable of the application is limited by the bearing part to prevent from deflecting greatly in the processing process, the pushing component for pushing the cutting part to reciprocate along the radial direction of the cable and the bearing part rotate synchronously around the cable together, the influence of the rotation difference between the pushing component and the bearing part on the cable cutting is reduced, the cutting part of the cutting part is arranged obliquely, the gradient of the cutting part is the same as that of the reaction force cone of the cable, the smooth and flat surface of the processed reaction force cone is ensured, compared with the prior art that the manual mode or the common numerical control lathe is adopted to drive the rotating cutter to move along the axial direction of the cable, the processed surface of the reaction force cone of the cable is uneven, the tip of the cable is further discharged, and the fault frequency of the cable joint is caused, the application limits the cable through the bearing part, and the synchronous rotation of the bearing part and the pushing component to avoid the influence of the processing device on the processing precision of the cable, particularly, the cutting part of the cutting piece is matched with the machined reaction force cone, so that the surface of the reaction force cone cut by the cutting piece is smooth and flat.

2. The utility model provides a still be provided with location portion on the cutting member, the axial direction parallel arrangement of location portion and cable, so in the course of working to the cable, the surface laminating of location portion and cable can prevent to produce between cutting member slope cutting portion and the cable and slide, and then has guaranteed that the surface of the reaction force awl after the cable processing is smooth-going.

3. The pushing assembly is assembled on the bearing part through the limiting sliding of the sliding pair, specifically, the sliding pair comprises a T-shaped sliding rail formed on the bearing part and a sliding block formed on one side of the nut seat, the sliding block is matched with the T-shaped sliding rail, so that the pushing assembly can slide relative to the bearing part, and meanwhile, the pushing assembly is not prevented from being separated from the bearing part by arranging an additional limiting device, so that the structure of the cutting device is simplified.

4. The bearing part comprises a conductive part and a connecting part, and the signal wire of the pushing driving part is arranged in the conductive part so as to prevent the signal wire of the pushing driving part from being wound and further ensure the stable operation of the cutting device.

5. Two centre gripping subassemblies of this application, two centre gripping subassemblies set up on the walking route of cable, and it is located between two centre gripping subassemblies to hold the thing, has three supports on the cable like this, can prevent that the cable from warping because of self gravity and certain compliance in the processing, and then has avoided the influence to the machining precision of cable reaction force awl.

Drawings

FIG. 1 is a schematic view of a cutting device;

FIG. 2 is a schematic structural view of the carrier;

FIG. 3 is a schematic structural view of a pushing assembly;

FIG. 4 is a schematic structural view of a sliding pair;

FIG. 5 is a schematic view of the mating of two clamping assemblies;

FIG. 6 is a schematic view of a clamping assembly;

FIG. 7 is a schematic view of the structure of the clamping member;

in the figure: 1-a carrier; 11-a conductive portion; 12-a connecting part; 13-a bearing; 14-a support; 2-a pushing assembly; 21-pushing the driving member; 22-screw pair; 221-a screw rod; 222-nut seat; 23-a connecting plate; 3-a cutting member; 31-a cutting portion; 32-a positioning section; 4-sliding pair; a 41-T shaped slide rail; 42-a slide block; 5-rotating the drive member; 51-a drive gear; 6-a clamping assembly; 61-a clamp; 611-body; 612-a clamping portion; 613-avoiding the gap; 62-a clamping channel; 63-firm piece; 7-cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 to 7, the cutting device of the present embodiment includes a carrier 1, a pushing assembly 2 and a cutting element 3, the cable 7 is inserted into the carrier 1, the carrier 1 is rotatably assembled with respect to the cable 7, the pushing assembly 2 is disposed on the carrier 1, the carrier 1 drives the pushing assembly 2 to rotate around the cable 7, the cutting element 3 is connected to a driving end of the pushing assembly 2, the pushing assembly 2 drives the cutting element 3 to perform a feeding or retreating motion along a radial direction of the cable 7, a cutting portion 31 of the cutting element 3 is disposed in an inclined manner, and an inclination of the cutting portion 31 is the same as an inclination of a reaction force cone of the cable 7.

The carrier 1 of this embodiment carries out spacing action to cable 7, carrier 1 bears and promotes subassembly 2 and drives and promote subassembly 2 synchronous revolution, avoid the influence of each part motion difference of cutting device to cable 7 machining precision, especially the cutting portion 31 of cutting piece 3 and the reaction force after the processing awl looks adaptation, make the reaction force awl surface of cutting piece 3 cutting smooth level and smooth, thereby unevenness behind the reaction force awl surface machining of cable 7 among the prior art has been solved, lead to cable 7's point to discharge, cause the problem that cable 7 connects the trouble frequently.

The cutting piece 3 of this implementation carries out location cutting action to cable 7, specifically, still be provided with location portion 32 on the cutting piece 3, cutting portion 31 upwards extends from the one end slope of location portion 32, location portion 32 and the axial direction parallel arrangement of cable 7, so in the course of working to cable 7, location portion 32 and the laminating of cable 7's surface, location portion 32 is to cutting portion 31 limit support, to produce the slip between cutting portion 31 and the cable 7 of slope setting on preventing cutting piece 3, and then guaranteed the smooth and smooth surface of the reaction force awl after cable 7 processing.

The pushing assembly 2 of the present embodiment pushes the cutting member 3 to move, so as to perform a cutting action on the cable 7, specifically, the pushing assembly 2 includes a pushing driving member 21 and a screw pair 22, the pushing driving member 21 is configured as a motor in the present embodiment, the motor is fixedly mounted on the carrier 1, the screw pair 22 includes a screw 221 and a nut seat 222, the nut seat 222 is limited in rotation, the screw 221 is connected with a driving end of the motor, the nut seat 222 is connected with the cutting member 3, the rotation of the motor drives the screw 221 to rotate, the rotation of the screw 221 drives the nut seat 222 to move linearly, so that the nut seat 222 can drive the cutting member 3 to move toward or away from the cable 7 in a radial direction, so as to achieve the cutting action on the cable 7.

Preferably, the nut holder 222 of the present embodiment is connected to the cutter 3 by means of the connecting plate 23, the connecting plate 23 is L-shaped, and the connecting side of the connecting plate 23 for connection to the cutter 3 is disposed adjacent to the cable 7 and in parallel with the axial direction of the cable 7.

Further, the nut seat 222 of the present embodiment is limited in rotation by the sliding pair 4, and slides in the radial direction relative to the carrier 1 by means of the sliding pair 4, specifically, the sliding pair 4 includes a T-shaped sliding rail 41 formed on the carrier 1 and a sliding block 42 formed on one side of the nut seat 222, and the sliding block 42 and the T-shaped sliding rail 41 are adapted so that the sliding block 42 limits the rotation of the nut seat 222, so that the nut seat 222 can carry the cutting element 3 to move in the radial direction.

The carrier 1 of the present embodiment can accommodate the signal wire of the push driving member 21, and specifically, the carrier 1 includes the conductive portion 11, and the signal wire of the push driving member 21 is disposed in the conductive portion 11 to prevent the signal wire of the push driving member 21 from being wound during rotation, thereby ensuring stable operation of the cutting apparatus.

Further, the carrier 1 of the present embodiment is driven by the rotary driving element 5 to rotate around the cable 7, and specifically, the carrier 1 further includes a connecting portion 12, in the present embodiment, the connecting portion 12 is configured as a driven gear, the rotary driving element 5 is configured as a motor, a driving end of the motor is connected with a driving gear 51, the driving gear 51 and the driven gear are engaged with each other, and rotation of the motor drives the driving gear 51 and the driven gear to rotate, so that the pushing assembly 2 and the cutting element 3 can also rotate around the cable 7.

In order to prevent the rotation of the bearing member 1 from causing the following rotation of the cable 7, the bearing member 1 of the present embodiment is provided with a bearing 13, an outer ring of the bearing 13 is fixedly connected with the bearing member 1, the cable 7 passes through an inner ring of the bearing 13, and an inner ring of the bearing 13 is connected with the supporting member 14, so that when the bearing member 1 rotates, the cable 7 can be limited and cannot rotate along with the bearing member 1.

In order to carry out the bearing and clamping action to cable 7, in order to reduce the deformation when cable 7 is cut, the cutting device of this embodiment still includes two centre gripping subassemblies 6, two centre gripping subassemblies 6 set up on the walking route of cable 7, the both ends of cable 7 are all by centre gripping subassembly 6 centre gripping, bear the weight of and lie in between two centre gripping subassemblies 6, there are three support limit points on the cable 7 like this, can prevent that cable 7 from warping because of self gravity and certain compliance in the processing, and then avoided the influence to the machining precision of cable 7 reaction force awl.

But the cable 7 of the different diameters of centre gripping subassembly 6 centre gripping of this embodiment, specifically, centre gripping subassembly 6 includes two holders 61, two holders 61 set up in opposite directions in order to form centre gripping passageway 62, cable 7 wears to establish in centre gripping passageway 62, the articulated cooperation of one end of two holders 61, the other end of two holders 61 is with the help of fastener 63 fixed connection, fastener 63 sets up to bolt and nut in this embodiment, after the specification change of cable 7, only need adjust the position of bolt and nut, the centre gripping of centre gripping subassembly 6 to the cable 7 of different specifications has been realized through foretell mode, thereby cutting device's suitability has been strengthened.

Further, the clamping member 61 of the present embodiment can also adjust the clamping force on the cable 7 to prevent the surface of the cable 7 from being damaged due to an excessive clamping force, specifically, the clamping member 61 includes a body 611 and two clamping portions 612, the two clamping portions 612 are disposed in a disconnected manner, the clamping portions 612 extend from the body 611, an avoiding gap 613 is formed between the free end of the clamping portion 612 and the body 611, when the cable 7 has an excessive local size due to a production defect and is clamped by the clamping portions 612, the cable 7 will press the free end of the clamping portion 612, so that the free end of the clamping portion 612 can swing inwards in the avoiding gap 613, thereby preventing the cable 7 from being over-pressed, and preventing the copper core in the cable 7 from being damaged.

Preferably, the position of the supporting member 14 between the two clamping assemblies 6 is adjustable, specifically, the bottoms of the two sets of clamping assemblies 6 are connected by a bottom plate, a guide rail is arranged on the bottom plate, a sliding groove corresponding to the guide rail is formed on the supporting member 14, and the guide rail extends into the sliding groove, so that the supporting member 14 slides on the bottom plate, and the bearing member 1 can support different positions of the cable 7.

Based on the above structure, the working principle of the cutting device of the present embodiment is

After the cable 7 passed the inner ring of centre gripping subassembly 6 and bearing 13, centre gripping subassembly 6 carried out the centre gripping action to cable 7, rotary driving piece 5 drive driving gear 51 and connecting portion 12 rotate, thereby it promotes subassembly 2 and cutting piece 3 rotatory in order to cut cable 7 to drive, cutting piece 3 rotates a week every time simultaneously, it feeds along the radial direction of cable 7 to promote driving piece 21 to drive cutting piece 3 through lead screw pair 22, so realize the processing to the reaction force awl of cable 7, the processing of reaction force awl is accomplished the back, it takes cutting piece 3 to deviate from the motion of cable 7 to promote driving piece 21.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A cutting device, comprising:

the cable fixing device comprises a bearing piece (1), wherein a cable (7) penetrates through the bearing piece (1), and the bearing piece (1) is rotatably assembled relative to the cable (7);

the pushing assembly (2) is arranged on the bearing piece (1), and the bearing piece (1) drives the pushing assembly (2) to rotate around the cable (7);

the cutting piece (3) is connected with the driving end of the pushing assembly (2), the pushing assembly (2) drives the cutting piece (3) to perform feeding or retreating action along the radial direction of the cable (7), a cutting part (31) of the cutting piece (3) is arranged in an inclined mode, and the inclination of the cutting part (31) is the same as that of a reaction force cone of the cable (7).

2. A cutting device according to claim 1, characterized in that the cutting member (3) is further provided with a positioning portion (32), the positioning portion (32) being arranged parallel to the axial direction of the cable (7).

3. The cutting device according to claim 2, characterized in that the pushing assembly (2) is fitted in a limited sliding manner with respect to the carrier (1) by means of a sliding pair (4).

4. A cutting device according to claim 3, wherein the pushing assembly (2) comprises:

a push drive (21);

the screw rod pair (22), the screw rod pair (22) comprises a screw rod (221) and a nut seat (222), the nut seat (222) is limited to rotate by the sliding pair (4), the screw rod (221) is connected with the push driving piece (21), the nut seat (222) is connected with the cutting piece (3), and the push driving piece (21) drives the cutting piece (3) to perform feeding or retreating actions through the screw rod (221) and the nut seat (222).

5. The cutting device according to claim 4, wherein the sliding pair (4) comprises a T-shaped slide rail (41) formed on the carrier (1) and a slide block (42) formed on one side of the nut seat (222), the slide block (42) and the T-shaped slide rail (41) are adapted, and the slide block (42) performs a rotation limiting action on the nut seat (222).

6. A cutting device according to claim 4, wherein the carrier (1) comprises a conductive portion (11) and a connecting portion (12), the signal wire of the push driver (21) being arranged in the conductive portion (11), the connecting portion (12) being connected to a rotary driver (5), the rotary driver (5) driving the carrier (1) in rotation.

7. A cutting device according to claim 6, characterized in that a bearing (13) is arranged in the carrier (1), that the outer ring of the bearing (13) is fixedly connected to the carrier (1), and that the inner ring of the bearing (13) is connected to a support (14).

8. The cutting device according to claim 1 or 7, further comprising two clamping assemblies (6), the two clamping assemblies (6) being arranged in the path of travel of the cable (7), the carrier (1) being located between the two clamping assemblies (6).

9. The cutting device according to claim 8, wherein the clamping assembly (6) comprises two clamping members (61), the two clamping members (61) are arranged opposite to each other to form a clamping channel (62), the cable (7) is arranged in the clamping channel (62) in a penetrating mode, one ends of the two clamping members (61) are in hinged fit, and the other ends of the two clamping members (61) are fixedly connected through a fastening piece (63).

10. The cutting device according to claim 9, wherein the clamping member (61) comprises a body (611) and two clamping portions (612), the two clamping portions (612) are arranged in a disconnected manner, the clamping portions (612) extend from the body (611), an escape gap (613) is formed between a free end of the clamping portion (612) and the body (611), and after the cable (7) presses the free end of the clamping portion (612), the free end of the clamping portion (612) moves towards the body (611) in the escape gap (613).