CN106711818A - Paperboard cutting tool in confined space - Google Patents
Paperboard cutting tool in confined space Download PDFInfo
- Publication number
- CN106711818A CN106711818A CN201611230450.5A CN201611230450A CN106711818A CN 106711818 A CN106711818 A CN 106711818A CN 201611230450 A CN201611230450 A CN 201611230450A CN 106711818 A CN106711818 A CN 106711818A
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- CN
- China
- Prior art keywords
- axle
- cutting
- bearing
- cutting tool
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B25/00—Hand cutting tools involving disc blades, e.g. motor-driven
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a paperboard cutting tool in a confined space. The paperboard cutting tool comprises a shaft (1), wherein one end of the shaft (1) is a power input end, the other end is provided with a cutting blade (13), the shaft (1) is provided with a first shaft shoulder at a position close to the cutting blade (13), the shaft (1) is connected with a cutting limit block (12) in a movable manner at a position of the first shaft shoulder, and the outer side of the cutting limit block (12) is connected with a handrail (11) arranged in parallel to the shaft (1). The paperboard cutting tool in the confined space provided by the invention can effectively avoid relative frictional sliding through rotating connection parts during cutting, and avoids the production of scrap iron.
Description
Technical field：
The present invention relates to a kind of instrument, and in particular to cardboard cutting tool in a kind of restricted clearance, for being produced to transformer
The transformer body top caused in product experiment, running or the quick excision of bottom damaged layer insulation.
Background technology：
Certain failure power transformer causes device body bottom layer insulation 6mm exhausted due to device body bottom layer insulation position metallic foreign body
Edge cardboard is damaged, and causes the transformer fault.Because this product need to place under repair in detachable factory building, its repair procedures cost
It is too high, for control cost is repaired by the way of quick reparation insulation.But difficult point is how to cut off trouble location insulation.
The operating space of faulty insulator position only has the operating space of 60mm height.In view of this kind of situation is designed inside this kind of restricted clearance
Insulating board cutting tool.Rotated by high torque variable-frequency motor band movable arbor, carry out cardboard cutting.Life is reduced so as to reach
The product cycle more than 20 day, reduce production cost, the purpose of energy saving.
The content of the invention：
It is an object of the invention to provide cardboard cutting tool in a kind of restricted clearance, so that ensure can be accurate according to definite size
Definitely cut out faulty insulator position, as required design cutting element length, design blade structure, cutting element position limiting structure and
Force analysis etc., carries out the research and design that restricted clearance cuts off insulating tool, it is ensured that insulating part can safely and effectively be cut
Out.
To reach above-mentioned purpose, the present invention adopts the following technical scheme that to realize：
Cardboard cutting tool in a kind of restricted clearance, including axle, one end of the axle is power intake, and the other end is provided with
Cutting tip, is provided with first shaft shoulder on the axle of cutting tip, and cutting limit is connected with the axle at first shaft shoulder
Position block, the handrail being be arranged in parallel with axle is connected with the outside of the cutting limited block.
Of the invention further improvement be, cutting limited block is included from first shaft shoulder by closely to being far sleeved on axle
Clutch shaft bearing stop collar, double-row angular contact bal bearing and second bearing stop collar, and clutch shaft bearing stop collar and biserial corner connection
Limited block transition axle sleeve is also set with the circumference for touching ball bearing.
Further improvement of the invention is that second shaft shoulder is provided with the axle of power intake, at second shaft shoulder
Axle on be set with two angular contact ball bearings, be set with the second limit shaft sleeve on the axle between two angular contact ball bearings, lean on
The first limit shaft sleeve of limitation angular contact ball bearing axial movement, two angular contact balls are also set with the axle of nearly power intake
Rolling bearing is set with the circumference of bearing, the two ends of Rolling bearing are set with 3rd bearing stop collar.
Further improvement of the invention is that cutting tip uses rotating blade.
The present invention is further improved, a diameter of 40mm of the rotating blade.
Further improvement of the invention is that power intake is variable-frequency motor.
Further improvement of the invention is that power intake uses hexagonal structure with variable-frequency motor connecting portion.
Compared with prior art, the present invention has the advantage that：
Insulated repair process as example using transformer lower yoke：
Former repair process is：Disconnect lead → dismounting upper yoke fixedly connected part → extraction upper yoke between two post coils → tear open
Install except coil external insulation screen → extraction coil → changing of coils bottom insulation → suit coil → coil external insulation screen →
Device body drying → device body compression → iron core window height adjustment → insertion iron core upper yoke → coil intercolumniation line recovers.
Insulated using the direct obturator barrel layers of the insulation cutting tool of restricted clearance, specific implementation process is：Remove coil
The impaired coil bottom insulation of external insulation screen → cut off → enclosed outside insulation reparation → coil insulation by cutting off insulation size
Screen is installed and recovered
Contrast it can be seen that the repair directly insulated using the instrument can reduce substantial amounts of maintenance time and
Workload, reaches the purpose for reducing cost.Take charge of exhausted to layer using this kind of instrument to certain transformer field maintenance work by me
The reparation of edge uses process, and the simple artificial and material cost for saving maintenance reaches more than 80 when rough calculation single transformer is repaired
Ten thousand, reduce 20 days maintenance work cycles.And the product after repairing reaches the disposable result for passing an acceptance test in power station.
In short, present invention tool following points advantage：
1st, this kind of cutting tool can quickly be cut off for the layer insulation of the transformer of damaged part；
2nd, drive cutting operation process time saving and energy saving by motor；
3rd, shaft length can carry out length dimension change according to the change of cutting position；
4th, by changing spacing block size (such as being increased or cutting tip in bottom) and changing the diameter of blade
Cooperation can be cut for different insulation thickness structures, the structure possesses referential；
5th, this structure repair transformer layer insulation is impaired can accomplish not extract upper yoke, it is to avoid extract coil and repaiied
It is multiple, reduce the operation duration；
6th, because this kind of instrument does not extract upper yoke when transformer layer insulation is repaired, it can be ensured that between the empiecement between lamination
Gap does not change, and the magnetic structure of transformer body inner core does not change.It is prevented effectively from repair process and causes transformation
Device iron loss increases.Ensure that inside transformer magnetic property does not change.Caused when being prevented effectively from installing/dismounting upper yoke simultaneously
Silicon steel sheet surface damage or core clamping oil duct or insulation are damaged；
7th, the coil of extractor body is not repaired, and the secondary impaired of insulating part is effectively prevent, while avoiding position from changing
Become, it is ensured that the device body magnetic field of integrated transformers fuel tank internal does not change, and avoid coil from being damaged；
8th, normal process process can just carry out the peace of upper yoke after the work for being compressed again is needed after extracting coil
Dress, the process easily causes the damage of mechanical performance to the multiple compression of insulating part to insulating part, while influenceing coil with respect to position
Put.This kind of maintenance mode can be prevented effectively from；
9th, some high-power transformers need to carry out field repair work, this kind of instrument carry out field repair can be prevented effectively from it is various
The transport of extensive process appliance device is (such as：Iron core transhipment storage box, device body entirety compression tooling and hydraulic system), reduce zero
The generation of part maintenance process damaged condition, can largely reduce manpower and materials cost, and shorten the maintenance duration.
Brief description of the drawings：
Fig. 1 is the structural representation of cardboard cutting tool in a kind of restricted clearance of the invention.
Fig. 2 is the assembled view of axle；
Fig. 3 is the structural representation of cutting limited block, wherein, Fig. 3 (a) is standoff features front view, and Fig. 3 (b) is
Standoff features left view.
In figure：1- axles, the limit shaft sleeves of 2- first, 3- 3rd bearing stop collars, 4- angular contact ball bearings, the limit shafts of 5- second
Set, 6- Rolling bearings, 7- clutch shaft bearing stop collars, 8- double-row angular contact bal bearings, 9- limited block transition axle sleeves, the axles of 10- second
Hold stop collar, 11- handrails, 12- cutting limited blocks, 13- cutting tips.
Specific embodiment：
The present invention is made further instructions below in conjunction with accompanying drawing.
Using high torque motor as power source, band moving axis 1 is rotated, and shaft end installs cutting tip 13, by bite
The rotation of piece 13 is cut insulating board.To avoid rotating against friction between axle 1 and insulating board, using biserial angle
Contact ball bearing 8, is installed in back-to-back form, it is ensured that the protection of insulating board contact surface, while ensuring the stabilization of axle 1
Property, and a reliable stabilization fulcrum is provided.The cutting edge installation direction of cutting tip 13 is that bottom-up direction is cutting direction
Installed, required that the cutting of the cutting edge of cutting tip 13 is bottom-up when direction of rotation rotates from the direction of axle 1.Produced when so cutting
Raw opposition provides part power to be used to stablize briquetting, it is ensured that cutting depth.People is controlled feed by handrail 11
Speed and direction of feed, it is to avoid feed velocity is too fast to cause direction of feed out of hand.During cutting, the paper scrap for machining away is cut
Blade 13 throws away from top, it is to avoid bottom stockpiles excessive paper scrap and causes the out of control of the feed of cutting tip 13 during cutting.Cutting is limited
The size of position block 12 is corresponding with blade size and small space size.Thickness design is main to be considered not received in guarantee upper portion insulating
The cutting depth of cutting tip 13 is ensured in the case of damage, by taking the secondary design as an example, a diameter of 40mm of cutting tip 13 need to cut down
Part insulation paper plate thickness is 6mm, then the design principle of cutting limited block 12 is that bottom reserves the cutting edge depth of cutting tip 13 and is
6mm, it is ensured that cutting, while top increases 2mm surpluses to be used to protect top cardboard.
Other functions annex explanation：It is 3rd bearing stop collar 3, it is spacing for Bearing outer, stop that bearing is rotated through
There is play in journey, be connected with Rolling bearing 6 by screw thread, it is ensured that bearing does not occur relative play and impulsive force, it is to avoid bearing
It is impaired.Second limit shaft sleeve 5 is used cooperatively with 3rd bearing stop collar 3 ensures that Bearing inner holds out against, it is to avoid axial float.First
The direct spacing double-row angular contact bal bearing 8 of bearing stop collar 7, because size installation dimension is small, load is big, while whole to ensure
The structural reliability of rotating mechanism selects double-row angular contact bal bearing structure.Held out against by clutch shaft bearing stop collar 7, biserial
Angular contact ball bearing bearing 8 carried out by limited block transition axle sleeve 9 it is spacing, while limited block transition axle sleeve 9 play and cut use
The additional effect of the connection of limited block 12.The mode for making axle 1 not rotated jointly with cutting limited block 12.Cutting limited block 12 is adopted
With square structure, bottom surface can be made and top surface is spacing is more uniformly stressed, effectively improve the stability in cutting process.Second bearing
Stop collar 10 is close to blade end, it is ensured that bearing knot as the outside position limiting structure of double-row angular contact bal bearing with Limit Bearing
The compact purpose of structure.Axle 1 is connected using square rounded feature with blade attachment portion position with blade, it is to avoid blade skids, while knife
Done at piece endoporus and avoid relative slip, while rounding is it is possible to prevente effectively from local pressure is excessive, it is to avoid inner blade cuts through
Journey ftractures.End face is connected with fastening reliability using dual thin nut locking structure using screw thread, it is to avoid released during rotation.With electricity
Machine connecting portion uses hexagonal structure, it is to avoid the skidding at rotary course motor connection.Whole mechanism revolves when being prevented effectively from cutting
The Relative friction for turning connecting portion is slided, it is to avoid the generation of iron filings.
For further understanding of the invention, now it is used for process and makes as described below.
1) cutting element is mainly attached by the square joint of end six and two-way high torque motor, by high pulling torque
Variable-frequency motor provides cutting power source.
2) cutting depth is ensured by cutting limited block, ensures that position of not breaking down is not cut and causes to damage,
Ensure to need cutting part to be accurately cut simultaneously.
3) by double cooperation, a people control power and direction, a people control the depth of cut, circumgyration incision stabilization by handrail
Property and cutting speed reach the purpose of cutting.
Claims (7)
1. cardboard cutting tool in a kind of restricted clearance, it is characterised in that including axle (1), one end of the axle (1) is power input
End, the other end is provided with cutting tip (13), and first shaft shoulder, first shaft shoulder are provided with the axle (1) of cutting tip (13)
Cutting limited block (12) is connected with the axle (1) at place, is connected with the outside of the cutting limited block (12) flat with axle (1)
The handrail (11) that row is set.
2. cardboard cutting tool in a kind of restricted clearance according to claim 1, it is characterised in that cutting limited block
(12) including from first shaft shoulder by closely to remote clutch shaft bearing stop collar (7), the double-row angular contact bal bearing being sleeved on axle (1)
(8) and on second bearing stop collar (10), and the circumference of clutch shaft bearing stop collar (7) and double-row angular contact bal bearing (8) also cover
Equipped with limited block transition axle sleeve (9).
3. cardboard cutting tool in a kind of restricted clearance according to claim 2, it is characterised in that near power intake
Axle (1) on be provided with second shaft shoulder, two angular contact ball bearings (4), two corner connections are set with the axle (1) at second shaft shoulder
Touch and be set with the second limit shaft sleeve (5) on the axle (1) between ball bearing (4), be also set with the axle (1) of power intake
First limit shaft sleeve (2) of limitation angular contact ball bearing (4) axial movement, is set with two circumferences of angular contact ball bearing (4)
The two ends for having Rolling bearing (6), Rolling bearing (6) are set with 3rd bearing stop collar (3).
4. cardboard cutting tool in a kind of restricted clearance according to claim 1, it is characterised in that cutting tip (13) is adopted
Use rotating blade.
5. cardboard cutting tool in a kind of restricted clearance according to claim 4, it is characterised in that the rotating blade it is straight
Footpath is 40mm.
6. cardboard cutting tool in a kind of restricted clearance according to claim 1, it is characterised in that power intake is to become
Frequency motor.
7. cardboard cutting tool in a kind of restricted clearance according to claim 6, it is characterised in that power intake with become
Frequency motor connection position uses hexagonal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611230450.5A CN106711818B (en) | 2016-12-27 | 2016-12-27 | Cardboard cutting tool in a kind of restricted clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611230450.5A CN106711818B (en) | 2016-12-27 | 2016-12-27 | Cardboard cutting tool in a kind of restricted clearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106711818A true CN106711818A (en) | 2017-05-24 |
| CN106711818B CN106711818B (en) | 2018-09-28 |
Family
ID=58895510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611230450.5A Active CN106711818B (en) | 2016-12-27 | 2016-12-27 | Cardboard cutting tool in a kind of restricted clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106711818B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051886U (en) * | 1989-05-16 | 1990-01-31 | 黄兆宏 | Rotary electric food knife |
| CN2330473Y (en) * | 1998-06-29 | 1999-07-28 | 广州市南方厨具发展公司 | Chopper |
| CN202180483U (en) * | 2011-07-22 | 2012-04-04 | 苏州生益科技有限公司 | Slitting device for cutting prepregs |
| CN203210417U (en) * | 2013-04-07 | 2013-09-25 | 郎登更登泽郎 | Cutting machine with cutting depth control function |
| CN205572519U (en) * | 2016-03-17 | 2016-09-14 | 东方电气集团东方汽轮机有限公司 | Equipment is tailor to coil annular insulation gasket |
-
2016
- 2016-12-27 CN CN201611230450.5A patent/CN106711818B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051886U (en) * | 1989-05-16 | 1990-01-31 | 黄兆宏 | Rotary electric food knife |
| CN2330473Y (en) * | 1998-06-29 | 1999-07-28 | 广州市南方厨具发展公司 | Chopper |
| CN202180483U (en) * | 2011-07-22 | 2012-04-04 | 苏州生益科技有限公司 | Slitting device for cutting prepregs |
| CN203210417U (en) * | 2013-04-07 | 2013-09-25 | 郎登更登泽郎 | Cutting machine with cutting depth control function |
| CN205572519U (en) * | 2016-03-17 | 2016-09-14 | 东方电气集团东方汽轮机有限公司 | Equipment is tailor to coil annular insulation gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106711818B (en) | 2018-09-28 |
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