CN216461302U

CN216461302U - Diameter reducing device

Info

Publication number: CN216461302U
Application number: CN202122909786.7U
Authority: CN
Inventors: 刘宏亮; 刘若溪; 任志刚; 王智晖; 车瑶; 侯宇程; 李浩浩; 李斌
Original assignee: State Grid Corp of China SGCC; State Grid Beijing Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Beijing Electric Power Co Ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-05-10
Anticipated expiration: 2031-11-24

Abstract

The utility model provides a reducing device, comprising: the device comprises a rack, a first clamping piece and a second clamping piece, wherein the rack is provided with a through hole which is used for penetrating through a processed workpiece; a plurality of undergauge modules, the undergauge module is fixed in the frame, and every undergauge module includes: a housing; the two pinch rollers are rotatably arranged in the shell, rotating shafts of the two pinch rollers are parallel to each other, a space is formed between the two pinch rollers to form a reducing cavity, and the extending direction of the reducing cavity is overlapped with the axial direction of the through hole; the adjusting mechanism is arranged between the pressing wheels and the shell and can adjust the size of the space between the two pressing wheels; the diameter reducing modules are sequentially arranged along the axial direction of the through hole, each diameter reducing module is provided with a central line perpendicular to the axis of the through hole, the central lines of at least two diameter reducing modules are provided with included angles, and the cross sectional areas of at least two diameter reducing cavities are unequal. Through the technical scheme that this application provided, solve the problem that the undergauge device machining precision among the prior art is low.

Description

Diameter reducing device

Technical Field

The utility model relates to the technical field of machining equipment, in particular to a reducing device.

Background

The smooth aluminum sheath cable is composed of a conductor, an insulating wire core, a water blocking tape and a smooth aluminum sheath, wherein the insulating wire core is sleeved outside the conductor, the insulating layer is externally wrapped with the buffering water blocking tape, and the smooth aluminum sheath is sleeved outside the water blocking tape. In the production of the smooth aluminum sheath, the conductor, the insulated wire core and the water blocking tape which are sleeved are required to be arranged on the aluminum tape, and the aluminum tape is required to be welded into the smooth aluminum sheath. However, in order to avoid damaging the water-blocking tape in the welding process, a gap exists between the inner wall of the smooth aluminum sheath and the water-blocking tape, and then after the welding is completed, the diameter reduction device is required to perform diameter reduction treatment on the smooth aluminum sheath so as to avoid discharge caused by poor contact between the inner wall of the smooth aluminum sheath and the water-blocking tape.

The existing diameter reducing device has low processing precision, and after the diameter reducing process is carried out, the roundness of a smooth aluminum sheath is lower, so that the diameter reducing requirement can not be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a reducing device, which aims to solve the problem that the processing precision of the reducing device in the prior art is low.

The utility model provides a reducing device, comprising: the device comprises a rack, a first clamping device and a second clamping device, wherein the rack is provided with a through hole used for penetrating a processed workpiece; a plurality of undergauge modules, the undergauge module is fixed in the frame, and every undergauge module includes: a housing; the two pinch rollers are rotatably arranged in the shell, rotating shafts of the two pinch rollers are parallel to each other, a space is formed between the two pinch rollers to form a reducing cavity, and the extending direction of the reducing cavity is overlapped with the axial direction of the through hole; the adjusting mechanism is arranged between the pressing wheels and the shell and can adjust the size of the space between the two pressing wheels; the diameter reducing modules are sequentially arranged along the axial direction of the through hole, each diameter reducing module is provided with a central line perpendicular to the axis of the through hole, the central lines of at least two diameter reducing modules are provided with included angles, and the cross sectional areas of at least two diameter reducing cavities are unequal.

Furthermore, each diameter reducing module comprises two adjusting mechanisms, and the adjusting mechanisms are arranged in one-to-one correspondence with the pressing wheels.

Further, the reducing module still includes: the mounting seat is movably arranged in the shell, the rotating shaft of the pressing wheel is arranged on the mounting seat, and the pressing wheel part is positioned in the mounting seat.

Furthermore, adjustment mechanism includes adjusting screw, and adjusting screw wears to establish on the casing to with casing threaded connection, adjusting screw is located one side of keeping away from the reducing chamber of mount pad, and adjusting screw is connected with the mount pad drive, and adjusting screw passes through the relative casing of mount pad drive pinch roller and moves.

Further, adjusting screw's the one end that is close to the mount pad is the drive end, and the periphery of drive end is provided with spacing arch, and adjustment mechanism still includes joint spare, and joint spare sets up on the terminal surface of keeping away from the reducing chamber of mount pad, and joint spare and spacing protruding spacing cooperation are so that adjusting screw can drive the mount pad through joint spare and remove towards the direction of keeping away from the reducing chamber, and adjusting screw can drive the mount pad through the drive end and remove towards the direction of being close to the reducing chamber.

Further, the reducing module still includes: the fastener is arranged between the shell and the mounting seat and used for fixing the position of the mounting seat in the shell.

Furthermore, the shell is provided with scale marks which are used for measuring the displacement of the pinch roller.

Further, the reducing device further comprises a flange, the flange is arranged between the two adjacent reducing modules, and the flange is used for connecting the two adjacent reducing modules.

Furthermore, the central lines of two adjacent diameter-reducing modules form an included angle.

Further, a plurality of undergauge modules set up respectively in the both sides of through-hole.

By applying the technical scheme of the utility model, the diameter reducing device comprises a rack and a plurality of diameter reducing modules, wherein each diameter reducing module comprises a shell, two pressing wheels and an adjusting mechanism. Two pinch rollers set up in the casing, and adjustment mechanism is last to be set up between pinch roller and casing, and adjustment mechanism can adjust the distance between two pinch rollers for the size in reducing chamber can with the diameter looks adaptation of work piece, in order to satisfy the undergauge needs of multiple size. The included angle is formed between the central lines of the at least two reducing modules, so that rolling force can be applied to different positions of the plurality of reducing modules in the circumferential direction of the processed workpiece, the roundness of the processed workpiece after reducing can be guaranteed, and reducing precision is improved. Carry out the undergauge to level and smooth aluminium sheath through the undergauge device that this application provided, can make level and smooth aluminium sheath and the inseparable laminating of water-blocking tape, reduce or avoid because the discharge phenomenon that the two contact failure produced, improved product quality.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 shows a schematic structural view of a diameter reducing apparatus provided by the present invention;

FIG. 2 shows an enlarged view at A in FIG. 1;

FIG. 3 illustrates a cross-sectional view of a diameter reduction module provided by the present invention;

fig. 4 shows an enlarged view at B in fig. 3.

Wherein the figures include the following reference numerals:

10. a frame; 11. a through hole; 20. a diameter reducing module; 21. a housing; 22. a pinch roller; 221. a rotating shaft; 222. a reducing cavity; 23. an adjustment mechanism; 231. adjusting the screw rod; 2311. a driving end; 2312. a limiting bulge; 232. a clamping piece; 24. a mounting seat; 25. a fastener; 30. and (4) a flange.

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.

As shown in fig. 1 and 2, embodiments of the present invention provide a diameter reduction apparatus that includes a frame 10 and a plurality of diameter reduction modules 20. The frame 10 has a through hole 11, and the through hole 11 is used for penetrating through a workpiece. A reducing module 20 is fixed to the frame 10, the reducing module 20 comprising a housing 21, two press wheels 22 and an adjusting mechanism 23. The two pressing wheels 22 are rotatably arranged in the shell 21, the rotating shafts 221 of the two pressing wheels 22 are parallel to each other, a space is formed between the two pressing wheels 22 to form a reducing cavity 222, and the extending direction of the reducing cavity 222 is coincident with the axial direction of the through hole 11. Adjustment mechanism 23 is disposed between pressure rollers 22 and housing 21, and adjustment mechanism 23 is capable of adjusting the size of the space between two pressure rollers 22. The diameter reducing modules 20 are sequentially arranged along the axial direction of the through hole 11, each diameter reducing module 20 is provided with a central line perpendicular to the axis of the through hole 11, the central lines of at least two diameter reducing modules 20 are provided with included angles, and the cross sectional areas of at least two diameter reducing cavities 222 are different. In the present embodiment, the reducing cavities 222 of the plurality of reducing modules 20 gradually decrease in cross-sectional area in the machine direction of the work piece.

By applying the technical scheme of the utility model, the diameter reducing device comprises a frame 10 and a plurality of diameter reducing modules 20, wherein each diameter reducing module 20 comprises a shell 21, two pressing wheels 22 and an adjusting mechanism 23. Two pinch rollers 22 set up in casing 21, set up between pinch roller 22 and casing 21 on the adjustment mechanism 23, adjustment mechanism 23 can adjust the distance between two pinch rollers 22 for the size of reducing chamber 222 can be with the diameter looks adaptation of work piece, with the undergauge needs of satisfying multiple size. The included angle is formed between the central lines of the at least two reducing modules 20, so that rolling force can be applied to different circumferential positions of the workpiece to be machined by the aid of the reducing modules 20, roundness of the workpiece to be machined after reducing can be guaranteed, and reducing precision is improved. Carry out the undergauge to level and smooth aluminium sheath through the undergauge device that this application provided, can make level and smooth aluminium sheath and the inseparable laminating of water-blocking tape, reduce or avoid because the discharge phenomenon that the two contact failure produced, improved product quality. Meanwhile, by the arrangement, the indentation and the flash on the surface of the smooth aluminum sheath can be reduced.

By overlapping the extending direction of the reducing cavity 222 with the axial direction of the through hole 11, smoothness of the processed workpiece when the processed workpiece passes through is ensured, and meanwhile, the roundness of the processed workpiece can be improved. Through reducing the cross-sectional area of a plurality of reducing chamber 222 along work piece moving direction gradually, so can realize the hierarchical undergauge to the work piece, make the work piece warp more evenly, reduce the work piece because the stress that the deformation produced. Carry out the undergauge with the level and smooth aluminium sheath in the cable through the device that this application provided and handle, can reduce the clearance of level and smooth aluminium sheath and cable buffering water-blocking tape, make it can well contact, and then make cable core surface field intensity distribution even, greatly reduced partial discharge's probability improves the product quality of cable. Moreover, in the application, the reducing structure is set to be a module structure, so that the design and the production can be facilitated, workers can conveniently disassemble and assemble, and the production and maintenance cost is reduced.

The distance between the two pressing wheels 22 can be adjusted by one adjusting mechanism, and the positions of the two pressing wheels 22 can be adjusted by the two adjusting mechanisms respectively so as to achieve the purpose of adjusting the distance.

In this embodiment, each diameter reducing module 20 includes two adjusting mechanisms 23, and the adjusting mechanisms 23 are disposed in one-to-one correspondence with the pressing rollers 22. Every pinch roller 22 all has the adjustment mechanism 23 that corresponds the setting, and when adjusting the distance between two pinch rollers 22, two pinch rollers 22 can be adjusted in step, can guarantee like this that the extending direction of reducing chamber 222 coincides with the axial of through-hole 11 mutually to can further guarantee level and smooth aluminium sheath's roundness and tolerance requirement.

The diameter reducing module 20 further includes a mounting seat 24, the mounting seat 24 is movably disposed in the housing 21, the rotating shaft 221 of the pressing wheel 22 is disposed on the mounting seat 24, and a portion of the pressing wheel 22 is disposed in the mounting seat 24. The pressing wheel 22 is fixed in the mounting seat 24 through the rotating shaft 221, and the pressing wheel 22 moves in the shell 21 along with the mounting seat 24. By adopting the structure, the position of the pinch roller 22 is convenient to fix and adjust. Moreover, the installation seat 24 can be used for replacing and installing the pressing wheel 22 conveniently, and the reducing range of the reducing module 20 can be further enlarged by replacing the pressing wheels 22 with different sizes, so that the adaptability of the device is improved.

As shown in fig. 3 and 4, the adjusting mechanism 23 includes an adjusting screw 231, the adjusting screw 231 is disposed on the housing 21 and is in threaded connection with the housing 21, the adjusting screw 231 is located on a side of the mounting seat 24 away from the reducing cavity 222, the adjusting screw 231 is in driving connection with the mounting seat 24, and the adjusting screw 231 drives the pressing wheel 22 to move relative to the housing 21 through the mounting seat 24. The adjusting screws 231 are located at two ends of the housing 21, and the mounting seat 24 is driven to move by rotating the adjusting screws 231. Adopt the helicitic texture to adjust, can make mount pad 24 reciprocate more accurately, improved regulation efficiency.

Specifically, the one end of adjusting screw 231 that is close to mount pad 24 is drive end 2311, the periphery of drive end 2311 is provided with spacing arch 2312, adjustment mechanism 23 still includes joint 232, joint 232 sets up on the terminal surface of keeping away from reducing chamber 222 of mount pad 24, joint 232 and the spacing cooperation of spacing arch 2312 are so that adjusting screw 231 can drive mount pad 24 through joint 232 and move towards the direction of keeping away from reducing chamber 222, adjusting screw 231 can drive mount pad 24 through drive end 2311 and move towards the direction of being close to reducing chamber 222. In this embodiment, joint 232 is the U type buckle, and joint 232 passes through the bolt fastening on the mount pad 24 terminal surface, and spacing arch 2312 sets up between the terminal surface of joint 232 and mount pad 24. When the adjusting screw 231 moves towards the direction far away from the reducing cavity 222, the limiting protrusion 2312 is abutted against the end surface of the clamping piece 232, and the clamping piece 232 can drive the mounting seat 24 to move towards the direction far away from the reducing cavity 222; when the adjusting screw 231 moves towards the reducing cavity 222, the limiting protrusion 2312 abuts against the end surface of the mounting seat 24, and pushes the mounting seat 24 to move towards the direction close to the reducing cavity 222. By adopting the structure, the structure is simple, the installation and the disassembly are convenient, and the operation of workers is convenient.

Further, the reducing module 20 further includes a fastener 25, the fastener 25 being disposed between the housing 21 and the mounting seat 24, the fastener 25 being used to fix the position of the mounting seat 24 in the housing 21. When mount 24 is moved to a desired position, fasteners 25 pass through housing 21 and abut mount 24 to secure mount 24 to housing 21. In this embodiment, the fastener 25 is a bolt, the reducing module further includes a connecting plate, a waist-shaped hole is formed in the connecting plate along the moving direction of the mounting seat 24, the fastener 25 is arranged in the waist-shaped hole, when the mounting seat 24 is fixed, the connecting plate is attached to the outer wall of the housing 21, the bolt sequentially penetrates through the connecting plate and the housing 21 and abuts against the side wall of the mounting seat 24, and the mounting seat 24 is fixed in the housing 21 by utilizing pressure generated when the bolt is tightened. By adopting the structure, the structure is simple, the installation and the disassembly are convenient, and the position of the installation seat 24 is easy to adjust.

Wherein, the shell 21 is provided with scale marks for measuring the displacement of the pressure roller 22. In this embodiment, the size of casing 21 is accurate, surface roughness is little, and adopts the scale mark can adjust the position of pinch roller 22 in casing 21 more accurately, further guarantees that reducing cavity 222 and through-hole 11 are coaxial setting, and then guarantees the roundness after the work piece processing, improves the product quality of cable.

Further, the reducing device further comprises a flange 30, the flange 30 is arranged between two adjacent reducing modules 20, and the flange 30 is used for connecting two adjacent reducing modules 20. In this embodiment, through connecting chuck and two adjacent undergauge modules 20 of bolted connection, so be convenient for freely assemble a plurality of undergauge modules 20 as required to the realization carries out the undergauge to the cable of different cross-sections.

Specifically, the centerlines of two adjacent diameter reduction modules 20 are angled. In this embodiment, the included angle between the center lines of two adjacent diameter-reducing modules 20 is 90 °, and the diameter-reducing cavities 222 gradually reduce along the cable running direction. In the reducing process, because the central lines of two adjacent reducing modules 20 have included angles, rolling force can be applied to different positions of the circumferential direction of a processed workpiece by utilizing the plurality of reducing modules 20, so that the roundness of the processed workpiece after reducing can be ensured, and the reducing precision is improved. And the surface of the processed workpiece is smooth and has no scratch, so that the product quality of the cable is further improved.

Wherein, a plurality of reducing module 20 sets up respectively in the both sides of through-hole 11. In this embodiment, 3 reducing modules 20 are respectively disposed on two sides of the through hole 11, and the reducing modules 20 are disposed on two sides of the through hole 11, so as to ensure the stability of the rack 10.

According to the technical scheme of the application, the diameter reducing device comprises a frame 10 and a plurality of diameter reducing modules 20, wherein each diameter reducing module 20 is provided with a shell 21, two pressing wheels 22 and an adjusting mechanism 23. The adjusting mechanism 23 can adjust the distance between the two pressing wheels 22, so that the size of the reducing cavity 222 can be matched with the diameter of a workpiece to meet the reducing requirements of various sizes. The central lines of the reducing modules 20 are provided with included angles, so that rolling force can be applied to different circumferential positions of a machined workpiece by the reducing modules 20, the roundness of the machined workpiece after reducing can be guaranteed, and reducing precision is improved.

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 exemplary only and not as 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 directions or positional relationships indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the directions or positional relationships shown in the drawings, and are for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular 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.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A diameter reducer, comprising:

the device comprises a machine frame (10), wherein the machine frame (10) is provided with a through hole (11), and the through hole (11) is used for penetrating through a processed workpiece;

a plurality of reducing modules (20), the reducing modules (20) being secured to the rack (10), each reducing module (20) comprising:

a housing (21);

the two pressing wheels (22) are rotatably arranged in the shell (21), rotating shafts (221) of the two pressing wheels (22) are parallel to each other, a space is reserved between the two pressing wheels (22) to form a reducing cavity (222), and the extending direction of the reducing cavity (222) is overlapped with the axial direction of the through hole (11);

the adjusting mechanism (23) is arranged between the pressing wheels (22) and the shell (21), and the adjusting mechanism (23) can adjust the size of the interval between the two pressing wheels (22);

the reducing modules (20) are sequentially arranged along the axial direction of the through hole (11), each reducing module (20) is provided with a central line perpendicular to the axis of the through hole (11), the central lines of at least two reducing modules (20) are provided with included angles, and the cross sectional areas of at least two reducing cavities (222) are different.

2. The reducing apparatus according to claim 1, characterized in that each reducing module (20) comprises two adjusting mechanisms (23), the adjusting mechanisms (23) being arranged in a one-to-one correspondence with the pressing wheels (22).

3. The reducing apparatus of claim 1, wherein the reducing module (20) further comprises:

the mounting seat (24) is movably arranged in the shell (21), a rotating shaft (221) of the pressing wheel (22) is arranged on the mounting seat (24), and the pressing wheel (22) is partially positioned in the mounting seat (24).

4. The diameter reducing device according to claim 3, wherein the adjusting mechanism (23) comprises an adjusting screw (231), the adjusting screw (231) is inserted into the housing (21) and is in threaded connection with the housing (21), the adjusting screw (231) is located on a side of the mounting seat (24) away from the reducing cavity (222), the adjusting screw (231) is in driving connection with the mounting seat (24), and the adjusting screw (231) drives the pressing wheel (22) to move relative to the housing (21) through the mounting seat (24).

5. The diameter reducing device according to claim 4, wherein one end of the adjusting screw rod (231) close to the mounting seat (24) is a driving end (2311), a limiting protrusion (2312) is arranged on the periphery of the driving end (2311), the adjusting mechanism (23) further comprises a clamping piece (232), the clamping piece (232) is arranged on the end face, far away from the diameter reducing cavity (222), of the mounting seat (24), the clamping piece (232) is in limiting fit with the limiting protrusion (2312) so that the adjusting screw rod (231) can drive the mounting seat (24) to move towards the direction far away from the diameter reducing cavity (222) through the clamping piece (232), and the adjusting screw rod (231) can drive the mounting seat (24) to move towards the direction close to the diameter reducing cavity (222) through the driving end (2311).

6. The diameter reduction device of claim 3, wherein the diameter reduction module (20) further comprises:

a fastener (25) disposed between the housing (21) and the mount (24), the fastener (25) for fixing a position of the mount (24) within the housing (21).

7. The reducing mechanism of claim 1, wherein the housing (21) has graduation marks disposed thereon for measuring the displacement of the pressure wheel (22).

8. The diameter reduction device according to claim 1, further comprising a flange (30), the flange (30) being arranged between two adjacent diameter reduction modules (20), the flange (30) being adapted to connect two adjacent diameter reduction modules (20).

9. The diameter reduction device of claim 1, wherein centerlines of adjacent two of the diameter reduction modules (20) are angled.

10. The diameter reducing device according to claim 1, characterized in that a plurality of diameter reducing modules (20) are respectively arranged on both sides of the through hole (11).