CN110739643A

CN110739643A - Axial driving device for cable strippers

Info

Publication number: CN110739643A
Application number: CN201910854793.6A
Authority: CN
Inventors: 孙丙宇; 汪胜和; 刘当武; 凌松; 李文波; 孙磊; 徐善军; 龚志文; 李帅; 孙璞; 张铜; 张振昌; 孙霄伟; 贺子国; 王晨哲
Original assignee: Hefei Zhongke Blue Arrow Technology Co Ltd; Beijing Guodian Futong Science and Technology Development Co Ltd; State Grid Anhui Electric Power Co Ltd; Hefei Technology Innovation Engineering Institute of CAS
Current assignee: Hefei Zhongke Blue Arrow Technology Co Ltd; Beijing Guodian Futong Science and Technology Development Co Ltd; State Grid Anhui Electric Power Co Ltd; Hefei Technology Innovation Engineering Institute of CAS
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-01-31

Abstract

The invention relates to the technical field of electrified fire connection, in particular to an axial driving device for cable strippers, which comprises a mounting base, an axial push rod, a tension spring and a fixing frame, wherein the top end of the axial push rod is provided with a top end stop block, the top end stop block is provided with a sensing surface, the fixing frame is provided with a sensing head used for matching the sensing surface, and the sensing end of the sensing head points to the direction of the sensing surface.

Description

Axial driving device for cable strippers

Technical Field

The invention relates to the technical field of electrified fire-receiving, in particular to an axial driving device for an cable stripper.

Background

The technical scheme is that the peeling operation of an insulated wire sheath is important processes in wire peeling connection in the process of line welding construction, the insulated wire sheath is usually made of high-strength polyethylene material and has very large thickness and hardness, when the live working is carried out by using an electric potential tool such as an insulated bucket arm vehicle or an insulated platform, the operator directly contacts the live wire, unsafe factors are increased, the peeling difficulty is large, the operation steps are multiple and low in efficiency, the operation environment is easily influenced by local environment, the operation process cannot be carried out even when a multi-loop rod type wire is arranged in a complex manner, namely the operation process cannot be carried out, the mechanical peeling method begins to appear, and the mechanical peeling method is adopted in a novel utility model named as a cable peeler, a patent No. CN201829799U, a cable peeler, a crank shaft, a crank, a cutter, a rotating shaft.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides axial driving devices for a cable stripper, which are reasonable and practical in structure, can provide a cutter with a specific axial force in a cable stripping process timely, realize an online adjusting function on the cable stripping length and the cutting frequency of an insulated wire sheath, and effectively avoid the situation that the stripped insulating wire sheath is too long to interfere with a subsequent stripping process, so that the mechanical stripping efficiency and reliability are greatly improved while the operation is simple and convenient.

In order to achieve the purpose, the invention adopts the following technical scheme:

axial driving device for cable barkers, which is characterized by comprising the following parts:

installing a base: the mounting base is provided with clamping pincers so as to clamp the cable in a radial action manner when the stripper works;

axial push rod: the axial push rod is arranged on the mounting base, and the thrust direction of the axial push rod is parallel to the axial direction of the cable;

fixing a frame: the fixing frame is used for fixing cable peeling, and the fixing frame generates reciprocating linear motion parallel to the axis of the cable along the axial direction of the axial push rod; a top end stop block is arranged at the top end of the axial push rod, an induction surface is arranged on the top end stop block, a sensing head used for being matched with the induction surface is arranged on the fixing frame, and the induction end of the sensing head points to the direction of the induction surface;

the end of the tension spring is fixedly connected to the top end stop block, and the other end of the tension spring extends along the axial direction of the cable and is fixedly connected and matched with the fixed frame.

Preferably, groups of sliding optical axes are arranged on the upper side and the lower side of the axial push rod, the two groups of sliding optical axes are arranged in an axisymmetric manner along the axis of the axial push rod, two groups of mounting holes with axes parallel to the axial direction of the cable are arranged on the fixing frame, and the sliding optical axes are in sliding fit with the corresponding forming hole shafts between the mounting holes .

Preferably, the shape of the fixing frame is a square plate with a vertically arranged plate surface, the top end of the fixing frame extends upwards to form an extension arm for directly matching with a peeler, and the fixing frame is provided with an avoidance hole which is superposed with the axial line of the axial push rod and is used for the axial push rod to pass through; and a linear bearing is arranged in the mounting hole, and the sliding optical axis penetrates through the inner ring of the linear bearing to form a bearing fit relation with the mounting hole.

Preferably, the sensing head is a travel switch, the fixed frame extends to the direction of the top end block to form a sliding block, the sensing head is arranged on the sliding block, the surface of the top end block facing the direction of the sliding block forms the sensing surface, and the sensing head is located on the action path of the sensing surface.

Preferably, the axial push rod is an electric push rod.

Preferably, the clamping pincers are divided into two groups and are arranged at two ends of the mounting base.

Preferably, the bottom end of the mounting base is hinged with a mounting flange for connecting an external jacking rod, and an axis of the hinged part between the mounting base and the mounting flange is horizontally arranged and is vertical to the axial direction of the cable.

The invention has the beneficial effects that:

1) after the cable is reliably clamped by the clamping pincers, when the first peeling is finished, the top end stop limits that the fixing frame cannot move forward continuously, the cutter at the peeler is in an idle state at the moment, and the linear insulating skin cut out before is cut off, then the axial push rod continues to carry out process downwards, so that the axial distance is generated between the sensing surface and the sensing end of the sensing head again, the axial distance is the distance which needs to move forward during the second peeling, and the fixing frame can move forward continuously without being blocked by the top end stop, meanwhile, due to the existence of the tension spring, when the axial push rod moves to a lower progress point, the tension spring is subjected to the tension force, so that the fixing frame generates an axial force which tends to the direction of the top end stop, and the end face of the insulated wire which is hard in the axial direction of the cutter at the peeler is assisted, and then the lower protective sleeve process starts to automatically cut into the cutting edge of the lower protective sleeve .

2) In addition, the fixing frame should be close to the axial push rod as possible in consideration of correct matching of the sensing surface and the sensing end at the sensing head, therefore, the fixing frame is set to be in a hole plate shape, and the axial push rod can directly penetrate through the fixing frame through the avoidance hole, so as to ensure the accuracy of subsequent matching action of the fixing frame and the sensing head.

3) In practical operation, the axial push rod acts until the travel switch touches the induction surface, the fixing frame stops acting, so that the peeler on the fixing frame stops axial displacement relative to the cable, the peeler stops axial displacement, the cutter on the peeler still rotates, and the insulation skin generated by cutting before can be cut off quickly.

4) The invention is characterized in that a plurality of specific implementation structures can be selected during actual operation, for example, a pneumatic push rod, a threaded screw rod structure or even a gear and rack structure is adopted, and only the working end of the axial push rod can generate reciprocating displacement motion relative to the axial direction of a cable when needed, the invention preferably uses the electric push rod, which takes the miniaturization and compactness of the structure of the electric push rod into consideration, in particular, the electric push rod does not need an additional auxiliary structure, the purpose of driving the cable by using the electric power required by a stripper is realized, the use is more convenient, for a clamping pliers, even if the cable is stripped manually, a cable fixing structure is adopted, the stripper is repeated when stripping, the invention ensures that the cable is clamped with a mounting base by fixing a clamping pliers on the mounting base, so that the purpose of integrating the cable with the mounting base into a is ensured, at this time, the series of actions generated by the axial push rod can be used only for generating rotation or spiral cutting, and the purpose of ensuring that the cable is reliably clamped with the clamping pliers that the can be fixed on the mounting base only by directly using the electric clamp which can be used.

Drawings

FIG. 1 is a perspective view of the present invention in an assembled state;

FIG. 2 is a schematic view of the working state of FIG. 1;

FIG. 3 is an exploded view of the structure of FIG. 1;

FIG. 4 is a perspective view of the cooperating structure of the present invention and the clamping jaws after the stripper has been removed;

FIG. 5 is an enlarged view of the structure of part I of FIG. 4;

FIG. 6 is a perspective view of the structure of the pliers;

FIG. 7 is an exploded view of the structure of FIG. 6;

FIG. 8 is a front view of a holding clamp;

FIG. 9 is a view showing the working state of the clamping jaw;

FIGS. 10 and 12 are schematic perspective views of the present invention with the extension spring removed;

FIGS. 11 and 13 are front views of the present invention;

fig. 14 is a perspective view of the fixing frame.

The actual correspondence between each label and the part name of the invention is as follows:

a-stripper b-cable

10-mounting base 11-mounting flange

21-fixed frame 21 a-mounting hole 21 b-avoiding hole 21 c-extension arm

22-axial push rod 23-top end stop block 24-tension spring

25-sliding optical axis 26-linear bearing 27-sliding block 27 a-sensor head

30-holding clamp 31-mounting plate 32-axial telescopic rod 33-push block

34 a-left slide block 34 b-right slide block 34 c-positioning pin hole

35 a-left guide block 35 b-right guide block 35 c-positioning pin shaft

36-horizontal guide rail 37-C-shaped bayonet 38-limiting arc groove 39-extension plate

Detailed Description

To facilitate understanding, the construction and operation of an embodiment of the present invention is further described below:

for convenience of description, the actual use of the present invention in a live working system as shown in fig. 1-14 will be described directly herein. The main structure of the hot-line work system shown in fig. 1-14 includes three major parts, namely, the clamping jaw 30, the mounting base 10 and the axial driving assembly of the present invention for the barker a to generate the axial follow-up function, wherein:

the structure of the clamping pliers 30 can be seen from fig. 1-9, each group of clamping pliers 30 comprises groups of mounting plates 31, groups of axial telescopic rods 32, groups of push blocks 33, two groups of slide blocks, two groups of guide blocks, two groups of horizontal guide rails 36, two groups of C-shaped bayonets 37 and two groups of extension plates 39. in actual operation, the above components except the extension plates 39 are uniformly arranged at the outer plate surface of the mounting plate 31, the bottom end of the inner plate surface of the mounting plate 31 is fixedly connected to the end surface of the mounting base 10 in a screw-fit manner according to the assembly direction shown in fig. 3. in the specific to the installation details, as shown in fig. 4-8, firstly, the axial telescopic rod 32 of the electric push rod structure is fixedly connected to the outer plate surface of the mounting plate 31 in a vertical manner, the push blocks 33 are fixedly connected to the working end of the axial telescopic rod 32, the left end and the right end of the push blocks 33 are fixedly connected to the left slide block 34a and the right block 34a

left slide block

34a and 34a right block 34a left slide block 34a right block 34b, the horizontal through a positioning pin hole 34C is arranged on the left block 34b, and the right block 34b, the horizontal pin hole 35a pin hole 35C is arranged on the guide block 35a pin hole 35a pin is arranged to be matched with a pin shaft, and a pin shaft 34C is arranged to be capable of the horizontal pin shaft, and a pin shaft 34C is arranged to be capable of the horizontal pin shaft, and.

The mounting base 10 is configured in the form of a transversely extending upright, as shown in fig. 1-4 and 10-13, to serve as a load-bearing base for secure positioning of the clamping jaw 30 and the axial drive assembly.

The axial driving assembly, i.e., the present invention, is structured as shown in fig. 1-3 and fig. 10-13, including sets of axial push rods 22, sets of fixed frame 21 for fixing the peeling device a, two sets of parallel arranged sliding optical axes 25 for generating axial reciprocating directional movement of the fixed frame 21, and sets of tension springs 24, wherein the axial push rods 22 of the electric push rod structure are horizontally fixed at side plate surfaces of the mounting base 10, while the two sets of sliding optical axes 25 are synchronously fixed on the mounting base 10 in a beam-like manner through the fixed seats at both ends, and the two sets of sliding optical axes 25 are axisymmetrically arranged with respect to the axial push rods 22, the fixed frame 21 is shaped as a square plate with the plate surfaces vertically arranged and perpendicular to the cable axis, as shown in fig. 14, the fixed frame 21 is provided with three sets of linear bearings 26 arranged in the mounting holes 21a, i.e., the sets of mounting holes 21a, , and the sets of mounting holes 21a, 35 , and the cable mounting holes 21a corresponding to the axial push rod 23, and the cable stop block 23, and the cable 23 are arranged at the axial push rod 21a position of the fixed cylinder 21, and the cable 23, so as shown in the fixed on the fixed frame 21, when the cable stop operation of the cable is still connected to the cable 21, the cable 21 is moved, the cable stop block 23, the push rod 21a, the cable stop is arranged in the vertical position, the vertical arrangement of the cable 21 is determined in the fixed frame 21a, and the fixed frame 21 is normal operation of the fixed frame 21, the cable stop block 21 is arranged in the vertical arrangement.

For the convenience of understanding the present invention, the specific working flow of the above-mentioned hot-line work system is given as follows by taking a handheld semi-automatic dehider a as an example and combining fig. 1-14:

when the hot-line work system is in an idle state, the structural state thereof is shown in fig. 1.

When the live working system needs to be used, the mounting flange 11 at the bottom of the mounting base 10 is fixedly connected with the matching flange at the top end of the handheld rod, so that an operator can hold the handheld rod to perform designated operation during operation.

The operator needs to initialize the hot-line work system, i.e. to ensure that the clamping vise 30 is in the open state, and at the same time, the axial push rod 22 at the axial follow-up assembly generates the contraction action, such as driving the top end stop 23 fixedly connected to the end of the axial push rod 22 to move rightward as shown in fig. 10-13. The top end stop 23 moves to the right until the sensing surface contacts the sensing head 27a of the sliding stop 27, so that the fixing frame 21 moves to the right along the sliding optical axis 25 to the initial position, and the initialization is completed.

When the initialization of the live working system is finished, steps can be carried out, namely, a cable clamping process:

first, the jaws of the clamps 30 of the hot-line work system are aligned with the cable b, and the cable b is slid down along the extension plate 39 and finally placed in the cavity of the arc-limiting groove 38, as shown in fig. 1. Then, the clamping pliers 30 are actuated, that is, the axial expansion rod 32 drives the left slider 34a and the right slider 34b to move upwards through the push block 33. The left slider 34a and the right slider 34b are shaped like wedges arranged axially symmetrically along the axis of the axial telescopic rod 32 so as to better avoid the falling path of the cable. The upward movement of the left slider 34a and the right slider 34b can drive the left guide block 35a and the right guide block 35b to generate opposite actions along the horizontal guide rail 36 through the matching of the positioning pin hole 34C and the positioning pin shaft 35C, so that the two sets of C-shaped bayonets 37 generate clasping actions relative to the cable b under the action of the guide blocks. The operation state of the live working system at this time is shown with reference to fig. 2.

After the cable b clamping process is completed, the following cable b peeling process is started:

1) before the stripping rotation, the axial push rod 22 needs to be extended by a designated distance as shown in fig. 11, and the designated distance is the axial stripping length of the cable b required to be stripped once. Since the cable b is clamped by the clamping jaw 30, when the axial push rod 22 is extended, the top end stop 23 is separated from the sliding stop 27, i.e. the sensing surface starts to disengage from the sensing end of the sensing head 27 a.

2) And the peeler a starts to work and performs a peeling rotation action. At this time, the peeler a moves to the left under the action of the spiral motion of the cutting edge of the cutter, and drives the whole fixing frame 21 to move to the left along the sliding optical axis 25. When the fixed frame 21 moves to the position where the sensing end of the sliding block 27 contacts with the sensing surface of the top end block 23, the sensing head 27a of the sliding block 27 is triggered. By monitoring the trigger signal of the sensor head 27a, i.e. the travel switch, it is known whether the stripper a has moved a corresponding distance, i.e. whether the cable b is currently stripped to a specified stripping length.

3) Due to the limit of the top end stop block 23, the fixing frame 21 cannot move forward continuously, and the stripper a can only rotate in situ, so that the insulation skin stripped in the single operation is cut off.

4) The top end stopper 23 is separated from the sliding stopper 27 again, and the tension spring 24 is also extended at this time, the elastic restoring force of the tension spring 24 applies a constant axial tension to the fixing frame 21 , so that the cutting edge of the peeler a on the fixing frame 21 smoothly and axially cuts into the exposed end surface of the insulation sheath on the cable b, so as to start the peeling operation of the lower section.

5) And when the total elongation of the axial push rod 22 reaches the set axial stripping length of the cable b, the axial push rod 22 stops moving as shown in fig. 10 and 12-13, and then the stripper a cuts off the insulation skin, thereby completing the whole stripping process.

After the peeling operation is completed, the live working system is reinitialized, that is, the peeler a is reset, the axial follower assembly is reset, and the clamping pincers 30 are opened again. And (4) taking down the live working system from the cable b, so that the inner core of the stripped cable b can be exposed, and then the subsequent conducting connection operation can be carried out.

Claims

The axial driving device for the barker of the type is characterized by comprising the following parts:

mounting base (10): the mounting base (10) is provided with a clamping clamp so as to clamp the cable in a radial action manner when the barker works;

axial push rod (22): the thrust direction of the axial push rod (22) is parallel to the axial direction of the cable;

a fixing frame (21): the cable peeling device is used for fixing cable peeling, and the fixing frame (21) generates reciprocating linear motion parallel to the axis of a cable along the axial direction of the axial push rod (22); a top end stop block (23) is arranged at the top end of the axial push rod (22), a sensing surface is arranged on the top end stop block (23), a sensing head (27a) used for being matched with the sensing surface is arranged on the fixing frame (21), and the sensing end of the sensing head (27a) points to the direction of the sensing surface;

in the tension spring (24), the end of the tension spring (24) is fixedly connected to the top end stop block (23), and the other end extends along the axial direction of the cable and is fixedly connected and matched with the fixed frame (21).
2. The axial driving device for barkers according to claim 1, wherein sets of sliding optical axes (25) are respectively disposed on the upper side and the lower side of the axial push rod (22), the two sets of sliding optical axes (25) are axially symmetrically disposed along the axial line of the axial push rod (22), two sets of mounting holes (21a) are disposed on the fixing frame (21), the axial line of the mounting holes is parallel to the axial direction of the cable, and the sliding optical axes (25) are in sliding fit with the corresponding component hole shafts of between the mounting holes (21 a).
3. The axial driving device for barkers according to claim 2, characterized in that the shape of the fixing frame (21) is a square plate with a vertically arranged plate surface, the top end of the fixing frame (21) extends upwards to form an extension arm (21c) for directly matching with the barker, the fixing frame (21) is provided with an avoidance hole (21b) which is coincident with the axial line of the axial push rod (22) and through which the axial push rod (22) passes, the mounting hole (21a) is internally provided with a linear bearing (26), and the sliding optical axis (25) passes through the inner ring of the linear bearing (26) to form a bearing matching relation with the mounting hole (21 a).
4. The axial drive device for peeler according to claim 3, wherein the sensor head is a travel switch, the fixing frame (21) has a slide stop (27) extending in a direction of the top stop (23), the sensor head (27a) is disposed on the slide stop (27), a surface of the top stop (23) facing the slide stop (27) constitutes the sensing surface, and the sensor head (27a) is located on a moving path of the sensing surface.
5. The axial drive device for barker according to claim 1, 2, 3 or 4 characterized in that, the axial push rod (22) is an electric push rod.
6. The axial drive device for kinds of barkers according to claim 1, 2, 3 or 4, characterized in that the clamping jaws are two groups and are disposed at both ends of the mounting base (10).
7. The axial driving device for barker according to claim 1, 2, 3 or 4 characterized in that the bottom end of the mounting base (10) is hinged with a mounting flange (11) for connecting with an external lifting rod, and the axis of the hinge between the mounting base (10) and the mounting flange (11) is horizontally arranged and vertical to the axial direction of the cable.