CN106711818B - Cardboard cutting tool in a kind of restricted clearance - Google Patents
Cardboard cutting tool in a kind of restricted clearance Download PDFInfo
- Publication number
- CN106711818B CN106711818B CN201611230450.5A CN201611230450A CN106711818B CN 106711818 B CN106711818 B CN 106711818B CN 201611230450 A CN201611230450 A CN 201611230450A CN 106711818 B CN106711818 B CN 106711818B
- Authority
- CN
- China
- Prior art keywords
- axis
- cutting
- bearing
- restricted clearance
- cutting tool
- 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.)
- Active
Links
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
Landscapes
- 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 cardboard cutting tools in a kind of restricted clearance, including axis (1), one end of the axis (1) is power intake, the other end is provided with cutting tip (13), it is provided with first shaft shoulder on the axis (1) of cutting tip (13), it is connected with cutting limited block (12) on axis (1) at first shaft shoulder, is connected on the outside of cutting limited block (12) and axis (1) handrail disposed in parallel (11).Cardboard cutting tool in a kind of restricted clearance provided by the invention can effectively avoid the relative friction at rotatable connection position when cutting from sliding, avoid the generation of iron filings.
Description
Technical field：
The present invention relates to a kind of tools, and in particular to cardboard cutting tool in a kind of restricted clearance, for being produced to transformer
The quick excision of transformer body top or the insulation of bottom damaged layer caused by product experiment, operational process.
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 impaired, causes the transformer fault.Since this product need to place under repair in detachable workshop, repair procedures cost
Excessively high, cost is repaired by the way of quick reparation insulation in order to control.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.It is designed inside this kind of restricted clearance in view of this kind of situation
Insulating board cutting tool.It is rotated by high torque variable-frequency motor band movable arbor, carries out cardboard cutting.Life is reduced to reach
Is produced from more than 20 day of period, production cost, energy saving purpose are reduced.
Invention content：
The purpose of the present invention is to provide cardboard cutting tool in a kind of restricted clearance, with ensure can be according to definite size standard
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 of restricted clearance excision insulating tool, it is ensured that insulating part can safely and effectively be cut
Out.
In order to achieve the above objectives, the present invention adopts the following technical scheme that realize：
One end of cardboard cutting tool in a kind of restricted clearance, including axis, the axis is power intake, and the other end is provided with
Cutting tip is provided with first shaft shoulder on the axis of cutting tip, and cutting limit is connected on the axis at first shaft shoulder
Position block, is connected with and axis handrail disposed in parallel on the outside of cutting limited block.
The present invention, which further improves, to be, cutting limited block includes from first shaft shoulder by closely to being far sleeved on axis
First bearing stop collar, double-row angular contact bal bearing and second bearing stop collar, and first bearing stop collar and biserial corner connection
It touches and is further sleeved with limited block transition axle sleeve in the circumferential direction of ball bearing.
The present invention, which further improves, to be, second shaft shoulder is provided on the axis of power intake, at second shaft shoulder
Axis on suit there are two angular contact ball bearing, be set with the second limit shaft sleeve on the axis 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 further sleeved on the axis of nearly power intake
Rolling bearing is set in the circumferential direction of bearing, the both ends of Rolling bearing are set with 3rd bearing stop collar.
The present invention, which further improves, to be, cutting tip uses rotating blade.
The present invention, which further improves, to be, a diameter of 40mm of the rotating blade.
The present invention, which further improves, to be, power intake is variable-frequency motor.
The present invention, which further improves, to be, power intake uses hexagonal structure with variable-frequency motor connecting portion.
Compared with prior art, the present invention has the advantage that：
Using a transformer lower yoke insulation repair process as example：
Former repair process is：Lead → dismounting upper yoke fixedly connected part → extraction upper yoke → is torn open between disconnecting two column coils
Except the installation of 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 restores.
It is 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 → enclose by cutting off insulation size and carry out insulation reparation → coil insulating exterior
Screen installation restores
Comparison it can be seen that the repair directly insulated using the tool can reduce a large amount of maintenance time and
Workload achievees the purpose that reduce cost.It is exhausted to layer using this kind of tool to certain transformer field maintenance work by our company
The reparation of edge uses process, rough calculation single transformer saves merely repair artificial and material cost when repairing to reach more than 80
Ten thousand, reduce 20 days maintenance work periods.And the product after repairing reaches the result disposably to pass an acceptance test in power station.
In short, the present invention has following points advantage：
1, the transformer layer that this kind of cutting tool can be directed to damaged part, which insulate, is quickly cut off；
2, drive cutting operation process time saving and energy saving by motor；
3, shaft length can carry out length dimension change according to the variation of cutting position；
4, by change limit block size (such as bottom increased or cutting tip) and change blade diameter
Cooperation can be cut for different insulation thickness structures, which has referential；
5, this structure repair transformer layer insulation is impaired can accomplish not extract upper yoke, and extraction coil is avoided to be repaiied
It is multiple, reduce the operation duration；
6, upper yoke is not extracted when repairing the insulation of transformer layer due to this kind of tool, 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.Effectively repair process is avoided to cause transformation
Device iron loss increases.Ensure that inside transformer magnetic property does not change.It effectively avoids causing when installing and dismounting upper yoke simultaneously
Silicon steel sheet surface damage or core clamping oil duct or insulation are impaired；
7, the coil of extractor body is not repaired, and effectively prevents the secondary impaired of insulating part, while position being avoided to change
Become, it is ensured that the device body magnetic field of integrated transformers fuel tank internal does not change, and avoids coil impaired；
8, normal process process could carry out the peace of upper yoke after needing the work compressed again after extracting coil
Dress, which compresses the damage for being easy that mechanical performance is caused to insulating part to the multiple of insulating part, while influencing coil with respect to position
It sets.This kind of maintenance mode can effectively avoid；
9, certain high-power transformers need to carry out field repair work, this kind of tool progress field repair can effectively avoid a variety of
The transport of extensive process appliance device is (such as：Iron core transports 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 repair duration.
Description of the drawings：
Fig. 1 is the structural schematic diagram of cardboard cutting tool in a kind of restricted clearance of the present invention.
Fig. 2 is the assembled view of axis；
Fig. 3 is the structural schematic diagram 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- axis, the first limit shaft sleeves of 2-, 3- 3rd bearing stop collars, 4- angular contact ball bearings, the second limit shafts of 5-
Set, 6- Rolling bearings, 7- first bearing stop collars, 8- double-row angular contact bal bearings, 9- limited block transition axle sleeves, the second axis of 10-
Hold stop collar, 11- handrails, 12- cutting limited blocks, 13- cutting tips.
Specific implementation mode：
The present invention is made further instructions below in conjunction with attached drawing.
Using high torque motor as power source, band moving axis 1 rotates, and shaft end installs cutting tip 13, passes through bite
Insulating board is cut in the rotation of piece 13.To avoid the relative rotation friction between axis 1 and insulating board, using biserial angle
Contact ball bearing 8, is installed in the form of back-to-back, it is ensured that the protection of insulating board contact surface, while ensuring the stabilization of axis 1
Property, and a reliable stable fulcrum is provided.It is cutting direction that 13 cutting edge installation direction of cutting tip, which is bottom-up direction,
It is installed, requires the cutting of 13 cutting edge of cutting tip bottom-up when direction of rotation is rotated from the direction of axis 1.It is produced when cutting in this way
Raw opposition provides part power for stablizing briquetting, it is ensured that cutting depth.People carries out control feed by handrail 11
Speed and direction of feed avoid feed velocity is too fast from causing direction of feed out of hand.When cutting, the paper scrap machined away is cut
Blade 13 is thrown away from top, and bottom stockpiles excessive paper scrap and causes the out of control of 13 feed of cutting tip when avoiding cutting.Cutting limits
The size and blade size and small space size of position block 12 are corresponding.Thickness design is main consider ensure upper portion insulating not by
13 cutting depth of cutting tip is ensured in the case of damage, by taking the secondary design as an example, 13 a diameter of 40mm of cutting tip need to be cut down
Part insulation paper plate thickness is 6mm, then cutting is that bottom reserves 13 cutting edge depth of cutting tip and is with 12 design principle of limited block
6mm, it is ensured that cutting, while top increases 2mm surpluses for protecting top cardboard.
Other functional accessories explanations：It for 3rd bearing stop collar 3, is limited for Bearing outer, blocking bearing rotates through
Play occurs in journey, is connect with Rolling bearing 6 by screw thread, it is ensured that opposite play and impact force do not occur for bearing, avoid bearing
It is impaired.Second limit shaft sleeve 5, with the use of ensuring that Bearing inner is held out against, avoids axial float with 3rd bearing stop collar 3.First
Bearing stop collar 7 directly limits double-row angular contact bal bearing 8, and since size installation dimension is small, load is big, while entire to ensure
The structural reliability of rotating mechanism selects double-row angular contact bal bearing structure.It is held out against by first bearing stop collar 7, biserial
Angular contact ball bearing bearing 8 is limited by limited block transition axle sleeve 9, while limited block transition axle sleeve 9 is played and used with cutting
The additional effect that limited block 12 connects.The mode for making axis 1 not rotated jointly with limited block 12 with cutting.Cutting limited block 12 is adopted
With square structure, bottom surface and top surface can be made to limit and be more uniformly stressed, the stability in cutting process is effectively improved.Second bearing
External position limiting structure of the stop collar 10 as double-row angular contact bal bearing has Limit Bearing close to blade end, it is ensured that bearing knot
The compact purpose of structure.Axis 1 is connect using rectangular rounded feature with blade with blade attachment portion position, avoids blade from skidding, while knife
Done at piece endoporus avoid it is opposite slide, while rounding avoids inner blade from cutting through it is possible to prevente effectively from local pressure is excessive
Journey cracks.End face is connected with fastening using screw thread and reliably uses dual thin nut locking structure, avoids loosening when rotation.With electricity
Machine connecting portion uses hexagonal structure, avoids the skidding of rotary course motor junction.Entire mechanism effectively avoids revolving when cutting
The relative friction sliding for turning connecting portion, avoids 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 six square connector of end with two-way high torque motor, passes through large 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,
Simultaneously ensure that cutting part is needed accurately to be cut.
3) by double cooperation, a people controls power and direction, and a people controls the depth of cut by handrail, circumgyration incision is stablized
Property and cutting speed achieve the purpose that cutting.
Claims (6)
1. cardboard cutting tool in a kind of restricted clearance, which is characterized in that including axis（1）, the axis（1）One end be power input
End, the other end are provided with cutting tip（13）, close to cutting tip（13）Axis（1）On be provided with first shaft shoulder, first shaft shoulder
The axis at place（1）On be connected with cutting limited block（12）, the cutting limited block（12）Outside be connected with and axis（1）It is flat
The handrail of row setting（11）；
Cutting limited block（12）Including from first shaft shoulder by closely to being far sleeved on axis（1）On first bearing stop collar（7）、
Double-row angular contact bal bearing（8）With second bearing stop collar（10）, and first bearing stop collar（7）And double-row angular contact bal bearing
（8）Circumferential direction on be further sleeved with limited block transition axle sleeve（9）.
2. cardboard cutting tool in a kind of restricted clearance according to claim 1, which is characterized in that close to power intake
Axis（1）On be provided with second shaft shoulder, the axis at second shaft shoulder（1）There are two angular contact ball bearings for upper suit（4）, two corner connections
Touch ball bearing（4）Between axis（1）On be set with the second limit shaft sleeve（5）, close to the axis of power intake（1）On be further sleeved with
Limit angular contact ball bearing（4）First limit shaft sleeve of axial movement（2）, two angular contact ball bearings（4）Circumferential direction on be set with
There is Rolling bearing（6）, Rolling bearing（6）Both ends be set with 3rd bearing stop collar（3）.
3. cardboard cutting tool in a kind of restricted clearance according to claim 1, which is characterized in that cutting tip（13）It adopts
Use rotating blade.
4. cardboard cutting tool in a kind of restricted clearance according to claim 3, which is characterized in that the rotating blade it is straight
Diameter is 40mm.
5. cardboard cutting tool in a kind of restricted clearance according to claim 1, which is characterized in that power intake is to become
Frequency motor.
6. cardboard cutting tool in a kind of restricted clearance according to claim 5, which is characterized in that power intake and change
Frequency motor coupling portion 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 CN106711818A (en) | 2017-05-24 |
| CN106711818B true 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 |
|---|---|
| CN106711818A (en) | 2017-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204247971U (en) | A kind of air floated high speed electric mandrel | |
| CN106711818B (en) | Cardboard cutting tool in a kind of restricted clearance | |
| CN202737356U (en) | Lubricating device for charged high-voltage isolator | |
| CN104505682A (en) | Electric spindle with conductive structure of cutting machining monitoring system | |
| CN203875455U (en) | Conducting device for vertical mill grinding roller welding repairing | |
| CN203077197U (en) | Withdrawal tool for belt pulley and impeller | |
| CN204772321U (en) | Aircraft starts dismantlement puller of spindle | |
| CN104148140B (en) | The changing spike devices and change nail method of a kind of high-pressure roller mill quick-replaceable roll surface stud | |
| CN206878662U (en) | A kind of magnetic steel of motor assembly tooling | |
| CN205342187U (en) | Angle steel cutterbar | |
| CN201841267U (en) | Online turning device for collecting ring of synchronous rolling mill | |
| CN105798656B (en) | A kind of motor stator Excircle machining positioning fixture | |
| CN202147207U (en) | Fine grinding fixture for turbine shafts | |
| CN209408400U (en) | One kind taking deep hole broken-off bit device | |
| CN202550770U (en) | Grinding head motor structure for eliminating axial float | |
| CN207746786U (en) | A kind of high-accuracy position system for face miller positioning | |
| CN206416348U (en) | A kind of multi-wire saw insulation wire storage device for diamond cutting line slicing machine | |
| CN202779966U (en) | Special tool for milling tank of porous connector | |
| CN203843306U (en) | Correcting device for bolt holes of split positioning pins of low-pressure outer cylinders of steam turbines | |
| CN205774286U (en) | A kind of online junction structure of fire door servicer off-axis | |
| CN203599542U (en) | Shaft core assembly of high-speed electric ball spindle | |
| CN102240964A (en) | Turbine shaft fine grinding jig | |
| CN104929980B (en) | A kind of fan leaf having dynamic balancing self-reacting device | |
| CN204497077U (en) | A kind of Portable multipurpose electric construction tool | |
| CN202667816U (en) | Dezincing device of condenser of refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |