CN106549284A - The lead installation method of carbon brush and lead wire mounting structure - Google Patents
The lead installation method of carbon brush and lead wire mounting structure Download PDFInfo
- Publication number
- CN106549284A CN106549284A CN201510931626.9A CN201510931626A CN106549284A CN 106549284 A CN106549284 A CN 106549284A CN 201510931626 A CN201510931626 A CN 201510931626A CN 106549284 A CN106549284 A CN 106549284A
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- Prior art keywords
- lead
- cutting edge
- brush
- installing hole
- periphery cutting
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/36—Connections of cable or wire to brush
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/12—Manufacture of brushes
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
- Manufacture Of Motors, Generators (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Drilling And Boring (AREA)
Abstract
Offer lead (103) is difficult to the lead installation method and lead wire mounting structure of the carbon brush for departing from.With the decline of drill bit for machining (10), straight hole (21) is cut out on body of the brush (101) by top cutting edge (13), and the helicla flute (22) of the inwall extension along straight hole is cut out by the first periphery cutting edge (14) and the second periphery cutting edge (15).And, in step (D) is stopped, drill bit for machining is rotated with the state for stopping lifting, therefore, wide diameter portion (23) is formed in the bottom of straight hole by the first periphery cutting edge and the second periphery cutting edge, the internal diameter of the wide diameter portion is bigger than spiral fluted external diameter.Copper powder (111) is filled in the base end part insertion lead installing hole by lead and to around which, and then pressurization compression filling copper powder and by lead be fixed on lead installing hole (20) it is interior when, as the base end part of lead is blocked by helicla flute and wide diameter portion, so lead is difficult to from lead installing hole depart from.
Description
Technical field
The present invention relates to the lead installation method and lead wire mounting structure of carbon brush.
Background technology
As a form of carbon brush, in Japanese Unexamined Patent Publication 2006-50772 publications, Japanese Unexamined Patent Publication
Following carbon brush is disclosed in 2008-154453 publications, Japanese Unexamined Patent Publication 2011-50142 publications etc.:It is logical
Cross and the base end part insertion of lead is formed in the lead installing hole of body of the brush, and copper powder is filled to lead
Pressurization compression is carried out after installing hole, so that lead is fixed on body of the brush.
Generally, this kind of lead installing hole is processed on body of the brush using the drill bit 100 shown in Fig. 6.Such as
Shown in Fig. 7, have using the lead installing hole 102 that the drill bit 100 is processed on body of the brush 101 straight
Shape.Lead 103 is arranged in the lead installing hole 102 using lead erecting device 110.Lead
Erecting device 110 have for store copper powder 111 receive ware 112, and receive ware 112 bottom surface open
The pipes 114 that mouth 113 is liftably fitted together to.
The action of the step of by making lead erecting device 110 to schematically show in Fig. 8, by lead 103
It is fixed in the lead installing hole 102 of body of the brush 101.First, make to be inserted with step (A) and draw
The pipe 114 of line 103 declines so that pipe 114 enters lead installing hole 102, and then by from the top of pipe 114
The base end part of the lead 103 that distal process goes out is pressed against the bottom hole of lead installing hole 102, draws so as to shape temporarily
The base end part of line 103.
Then, in step (B), make pipe 114 rise and open the reception ware 112 closed by pipe 114
Bottom surface opening 113, and then from receive ware 112 to lead installing hole 102 import copper powder 111, because
This, the gap filling copper powder 111 between the base end part and lead installing hole 102 of lead 103.
Then, in step (C), pipe 114 is made to decline and close reception ware 112 by pipe 114 again
Opening 113, so as to stop from receive ware 112 to lead installing hole 102 import copper powder 111.
And, in step (D), decline pipe 114, and the top of pipe 114 is pacified by voltage lead wires
Fill the copper powder 111 in hole 102 and carry out pressurization compression, hereafter, in step (E), make pipe again
114 rise and extract from lead installing hole 102.Through a series of step (A)~(E), will draw
The base end part of line 103 is fixed in the lead installing hole 102 of body of the brush 101.
Patent documentation 1:Japanese Unexamined Patent Publication 2006-50772 publications
Patent documentation 2:Japanese Unexamined Patent Publication 2008-154453 publications
Patent documentation 3:Japanese Unexamined Patent Publication 2011-50142 publications
The content of the invention
Due to utilize the conventional processing of drill bit 100 lead installing hole 102 be shaped as it is straight, so drawing
The base end part of line 103 is difficult to be blocked by the inwall of lead installing hole 102.Therefore, pressurization compression copper powder 111
And the fixing force when base end part of lead 103 is fixed on body of the brush 101 is low, so as to easily from lead
Installing hole 102 departs from.On the other hand, if strong pressurizing copper powder 111 and compress, though fixing force increase,
But there is the breakage because of high plus-pressure of body of the brush 101.
The present invention is proposed in view of the above problems, be its object is to, there is provided lead is difficult to the carbon brush for departing from
Lead installation method and lead wire mounting structure.
Invention described in technical scheme 1 provides a kind of lead installation method of carbon brush, and the carbon brush is to pass through
The insertion of the base end part of lead is formed in the lead installing hole of body of the brush, and conductive powder is filled to drawing
Pressurization compression is carried out after line installing hole, so that lead is fixed on carbon brush obtained from body of the brush, the carbon
The lead installation method of brush is characterised by,
Using the following drill bit for machining for processing the lead installing hole of carbon brush, the drill bit for machining sets
It is set to:
The top of drill main body is provided with the diameter top axle portion less than the diameter of drill main body, and
Leading edge is provided with the top axle portion, the leading edge includes top cutting edge, the first periphery cutting edge, from
The continuous second periphery cutting edge of one periphery cutting edge,
Top cutting edge, the first periphery cutting edge and the second periphery cutting edge are arranged on comprising drill main body
Rotation centerline datum level on, and top cutting edge is configured in the side of rotation centerline, first
Periphery cutting edge and the second periphery cutting edge are configured in the opposite side of rotation centerline,
With the inside corner portion of the inside corner portion of top cutting edge and the first periphery cutting edge in rotation
The mode connected on heart line arranges top cutting edge and the first periphery cutting edge, and in the datum level
It is interior, the angle of top cutting edge and the first periphery cutting edge into regulation,
First periphery cutting edge and the second periphery cutting edge form the triangle of the angle each other in regulation
Both sides, and it is prominent to the side of the top axle portion that the top corner part of the triangle for being formed is divided from both sides;
The lead installation method of the carbon brush has following operation:
Lead installing hole manufacturing procedure, as the crow flies enters inside with from the surface of body of the brush for processing
Helicla flute that straight hole, the inwall along straight hole extend, the bottom for being formed in straight hole and internal diameter compares spiral fluted
The lead installing hole of the big wide diameter portion of external diameter, including:
Decline step, the decline for making drill bit for machining rotate to specify relative to body of the brush
Speed declines,
Stop step, when drill bit for machining drops to the depth of regulation relative to body of the brush, make to add
Work drill bit continues rotation but stops declining,
Up step, and then stops operation, rotates drill bit for machining with than declining
The fireballing rate of climb rises.
Insertion operation, by the base end part insertion lead installing hole of lead,
Filling procedure, fills conductive powder to around the lead in insertion lead installing hole,
Fixed work order, carries out pressurization compression to the conductive powder of filling to lead installing hole and fixes lead
On body of the brush.
Invention described in technical scheme 2 is on the basis of the invention described in technical scheme 1, it is characterised in that
The radius x of interval y and the top axle portion between the rotation centerline and the top corner part is full
Sufficient formula:y/x≥1.9.
Invention described in technical scheme 3 is on the basis of the invention described in technical scheme 1, it is characterised in that
Top cutting edge and the first periphery cutting edge angulation are 110~130 °, and the first periphery is cut
Sharpener and the second periphery cutting edge angulation are 80~100 °.
Invention described in technical scheme 4 provides a kind of lead wire mounting structure of carbon brush, and the carbon brush is to pass through
The insertion of the base end part of lead is formed in the lead installing hole of body of the brush, and conductive powder is filled to drawing
Pressurization compression is carried out after line installing hole, so that lead is fixed on carbon brush obtained from body of the brush, the carbon
The lead wire mounting structure of brush is characterised by,
The lead installing hole is with entering internal straight hole as the crow flies from the surface of body of the brush, along straight hole
The inwall helicla flute for extending, the bottom for being formed in straight hole and expanding bigger than spiral fluted external diameter of internal diameter
Portion.
According to the present invention of technical scheme 1, the top ends of the main body of drill bit for machining are provided with diameter ratio
The little top axle portion of the diameter of main body, on top, axle portion is provided with the first periphery cutting edge and the second periphery is cut
Sharpener, and the first periphery cutting edge and the second periphery cutting edge form the triangle of the angle each other in regulation
The both sides of shape, and the top corner part of the triangle for being formed is divided from both sides dash forward to the side of the top axle portion
Go out, therefore, with the rotation of drill bit for machining, top axle portion is vibrated and is rotated.
Therefore, in operation is declined, with the decline of drill bit for machining, by top cutting edge in body of the brush
On cut out straight hole, and cut by the first triangle periphery cutting edge and the second periphery
Knife, cuts out the helicla flute of the inwall extension along straight hole.
In step is stopped, drill bit for machining is rotated with the state for stopping lifting, therefore, outside first
All cutting edges and the second periphery cutting edge form wide diameter portion in the bottom of straight hole, and the internal diameter of the wide diameter portion compares spiral shell
The external diameter of spin slot is big.
Used with processing by the spiral fluted spacing formed by the first periphery cutting edge and the second periphery cutting edge
The rising or falling speed of drill bit accelerates and becomes big.Also, spiral fluted spacing is bigger, top axle portion is got over to axle center
Side significantly vibrates, therefore, spiral fluted external diameter diminishes.On the other hand, if the lifting of drill bit for machining
Slow, spiral fluted spacing diminishes, the vibration to the center axis of top axle portion diminishes, therefore, spiral shell
The external diameter of spin slot becomes big.In operation is risen, drill bit is risen with the rate of climb faster than decrease speed, because
This, in operation is risen along straight hole the spiral fluted gap ratio that formed of inwall in operation is declined institute
The spiral fluted spacing of formation is big.Therefore, even if declining the part of the spiral fluted formed in operation
It is damaged in operation is risen, but major part retained.
So, by using the drill bit for machining of the present invention via decline step, stopping step, rising step
Rapid each step is processing body of the brush so that lead installing hole is processed on body of the brush, the lead is installed
The spiral that hole extends with the straight hole inside being entered from the surface of body of the brush as the crow flies, along the inwall of straight hole
Groove, the bottom for the being formed in straight hole and internal diameter wide diameter portion bigger than spiral fluted external diameter.
In insertion operation by the lead installing hole of the base end part insert structure of lead, in filling work procedure to drawing
Conductive powder is filled around line, in pressurization operation pressurization compression conductive powder, so that lead is fixed on
In lead installing hole, thus, as the base end part of lead is blocked by helicla flute and wide diameter portion, so lead
It is difficult to from lead installing hole depart from.
According to the invention of technical scheme 2, the prominent size of the side to top axle portion of top corner part becomes
Greatly, when drill bit for machining rotates, top axle portion is easily vibrated.
According to the invention of technical scheme 3, in processing, spiral fluted shape is difficult to avalanche.Additionally, the
One periphery cutting edge and triangle formed by the second periphery cutting edge hold positioned at when drill bit for machining rotates
The position for easily vibrating.
Description of the drawings
Fig. 1 is that the lead of the lead installation method for illustrating the carbon brush for one embodiment of the present of invention is installed
The side view of the drill bit for machining in hole.
Fig. 2 is the front view for illustrating same drill bit for machining.
Fig. 3 is the processing side of the lead installing hole for schematically showing the carbon brush using same drill bit for machining
The explanatory diagram of method.
Fig. 4 is the axonometric chart of an example for illustrating the lead installing hole processed using same processing method.
Fig. 5 is to schematically show lead is fixed on the lead installing hole processed using same processing method
The explanatory diagram of interior step.
Fig. 6 is the side view of the drill bit for machining of the lead installing hole for illustrating conventional.
Fig. 7 is to schematically show the lead installing hole and lead installation processed using same drill bit for machining
The explanatory diagram of device.
Fig. 8 is to schematically show lead is fixed on the lead processed using same drill bit for machining
The explanatory diagram of the step in installing hole.
The explanation of reference:
10:The drill bit for machining of lead installing hole
11:The main body of drill bit for machining
12:Top axle portion
12A:Leading edge
13:Top cutting edge
14:First periphery cutting edge
15:Second periphery cutting edge
16:Inside corner portion
17:Top corner part
20:Lead installing hole
21:Straight hole
22:Helicla flute
23:Wide diameter portion
101:Body of the brush
103:Lead
110:Lead erecting device
111:Copper powder
112:Receive ware
113:Bottom surface opening
L:Rotation centerline
S:Datum level
Specific embodiment
Below, based on the description of the drawings present invention.Figures 1 and 2 show that an enforcement for the present invention
The drill bit for machining 10 of the processing method of the lead installing hole of the carbon brush of example.In the drill bit for machining 10
The top ends of main body 11 are provided with the diameter top axle portion 12 less than the diameter of main body 11.Top axle portion
12 diameter is about the half of the diameter of main body 11.The top axle portion 12 is provided with leading edge 12A, should
Leading edge 12A includes top cutting edge 13, the first periphery cutting edge 14, connects from the first periphery cutting edge 14
The second continuous periphery cutting edge 15.
Top cutting edge 13, the first periphery cutting edge 14 and the second periphery cutting edge 15 are arranged on and include
In the datum level S of the rotation centerline L of drill main body 11.Top cutting edge 13 is arranged on center of rotation
The side of line L, the first periphery cutting edge 14 and the second periphery cutting edge 15 are arranged on rotation centerline L
Opposite side, the inner side of the inside corner portion 16 of top cutting edge 13 and the first periphery cutting edge 14 is turned
Corner 16 connects.
First periphery cutting edge 14 and the second periphery cutting edge 15 are set to, and in datum level S form three
Angular both sides and the top corner part 17 of the triangle for being formed is divided from both sides dash forward to the side of top axle portion 12
Go out.
Also, the radius x of the interval y and top axle portion 12 between rotation centerline L and top corner part 17
Size relationship be set as, meet formula:y/x≥1.9.
With top cutting edge 13 and the first periphery cutting edge 14, angulation θ 1 is in the datum level
110~130 ° of mode arranges two cutting edges 13,14.In addition, with 14 He of the first periphery cutting edge
Second periphery cutting edge 15 angulation θ 2 in the datum level S arranges two for 80~100 ° of mode
Individual cutting edge 14,15.In addition, top cutting edge 13, the first periphery cutting edge 14 and the second periphery
The relief angle of cutting edge 15 is set to 20 °.
The structure of drill bit for machining 10 is as described above, Fig. 3 is schematically shown using the processing brill
10 (A)~(E) the step of lead installing hole 20 are processed in the main body 101 of carbon brush.First,
In decline operation (A), (B), (C), drill bit for machining 10 is made relative to body of the brush 101
While being rotated with fixing speed while the decrease speed to specify declines.Also, work as drill bit for machining 10
Stop declining when dropping to the depth of regulation relative to body of the brush 101.In the stopping operation (D),
As declining operation (A)~(C), drill bit for machining 10 continues rotation.Stop operation (D)
Afterwards, the state for making drill bit for machining 10 to keep rotating rises.Processing in operation (E) is risen
It is fast with decrease speed of the rate of climb ratio of drill bit 10 in operation (A)~(C) is declined, so as to
It is enough rapidly to extract drill bit for machining 10 from body of the brush 101.
According to the present embodiment, the diameter top end shaft less than the diameter of main body is set in the top ends of main body 11
Portion 12, on top, axle portion 12 arranges the first periphery cutting edge 14 and the second periphery cutting edge 15, and
First periphery cutting edge 14 and the second periphery cutting edge 15 form two of the triangle each other in predetermined angular
Side and divided from both sides the triangle for being formed top corner part 17 it is prominent to the side of top axle portion 12, therefore,
With the rotation of drill bit for machining 10, top axle portion 12 is vibrated and is rotated.Therefore, with step (A)~
(C) decline of the drill bit for machining 10 in, is cut on body of the brush 101 by top cutting edge 13
Processing straight hole 21, and pass through 15 machining edge of the first periphery cutting edge 14 and the second periphery cutting edge
The helicla flute 22 that the inwall of straight hole 21 extends.Also, in operation (D) is stopped, processing is bored
10 to keep stopping the state rotation of lifting, therefore, by the first periphery cutting edge 14 and second outside
All cutting edges 15 form wide diameter portion 23 in the bottom of straight hole 21, and the internal diameter of the wide diameter portion 23 compares helicla flute
22 external diameter is big.Fig. 4 shows the shape of the lead installing hole 20 processed using drill bit for machining 10
One example.
The spacing of the helicla flute 22 formed by the first periphery cutting edge 14 and the second periphery cutting edge 15
Accelerating with the rising or falling speed of drill bit for machining 10 and becoming big.Also, the spacing of helicla flute 22 is bigger, then
The external diameter of helicla flute 22 is less.On the other hand, if the rising or falling speed of drill bit for machining 10 is slack-off, spiral shell
The spacing of spin slot 22 diminishes, as a result, the external diameter of helicla flute 22 becomes big.In up step, processing
Risen with the rate of climb faster than decrease speed with drill bit 10, therefore, along straight hole in up step
The gap ratio of the helicla flute 22 formed by 21 inwall is declining between the helicla flute 22 formed in step
Away from big.Therefore, even if a part for the helicla flute 22 formed in decline step is in up step
Breakage, but major part retained.
As described above, by using the present embodiment drill bit for machining 10 via decline step (A), (B),
(C) the step of, stopping step (D), up step (E) is processing body of the brush 101 so that
Lead installing hole 20 is processed on body of the brush 101, the lead installing hole 20 is with from body of the brush 101
Surface enters internal straight hole 21, the helicla flute 22 that the inwall along straight hole 21 extends, formation as the crow flies
In the bottom of straight hole 21 and the internal diameter wide diameter portion 23 bigger than the internal diameter of straight hole 21.
Then, illustrate fixed in the lead installing hole 20 processed using drill bit for machining 10 based on Fig. 5
The step of lead 103.First, make under the pipe 114 of insertion leaded 103 in insertion operation (A)
Drop, and make pipe 114 enter lead installing hole 20, and then the lead 103 that will be projected from the top of pipe 114
Base end part be pressed against lead installing hole 20 bottom wide diameter portion 23, so as to interim formed leads 103
Base end part.Then, in filling work procedure (B), (C), (D), pipe 114 is made to increase, and
Open the opening 113 of the bottom surface of the reception ware 112 closed by pipe 114, and then from receiving ware 112 to drawing
Line installing hole 20 imports copper powder 111, so as to the gap between lead 103 and lead installing hole 20 is filled out
Copper powder 111 is filled, after copper powder 111 of ormal weight are filled, declines pipe 114 again, and utilize pipe 114
Closing receives the opening 113 of ware 112, so as to stop that copper is imported from reception ware 112 to lead installing hole 20
Powder 111.Then, in fixed work order (E), further decline pipe 114, on the top for making pipe 114
End and side face press copper powder 111 and after the compression copper powder 111 that pressurizes, pipe 114 is risen and is installed from lead
Hole 20 is extracted, so as to be fixed on the base end part of lead 103 in the lead installing hole 20 of body of the brush 101.
As the base end part of lead 103 is blocked by helicla flute 22 and wide diameter portion 23, so being difficult to from lead install
Hole 20 departs from.
Claims (4)
1. the lead installation method of a kind of carbon brush, the carbon brush are to insert shape by the base end part by lead
Into in the lead installing hole of body of the brush, and conductive powder is filled to lead installing hole carry out pressurization pressure
Contracting, so that lead is fixed on carbon brush obtained from body of the brush, the spy of the lead installation method of the carbon brush
Levy and be,
Using the following drill bit for machining for processing the lead installing hole of carbon brush, the drill bit for machining sets
It is set to:
The top of drill main body is provided with the diameter top axle portion less than the diameter of drill main body, and
Leading edge is provided with the top axle portion, the leading edge includes top cutting edge, the first periphery cutting edge, from
The continuous second periphery cutting edge of one periphery cutting edge,
Top cutting edge, the first periphery cutting edge and the second periphery cutting edge are arranged on comprising drill main body
Rotation centerline datum level on, and top cutting edge is configured in the side of rotation centerline, first
Periphery cutting edge and the second periphery cutting edge are configured in the opposite side of rotation centerline,
With the inside corner portion of the inside corner portion of top cutting edge and the first periphery cutting edge in rotation
The mode connected on heart line arranges top cutting edge and the first periphery cutting edge, and in the datum level
It is interior, the angle of top cutting edge and the first periphery cutting edge into regulation,
First periphery cutting edge and the second periphery cutting edge form two of the triangle each other in predetermined angular
Side, and it is prominent to the side of the top axle portion that the top corner part of the triangle for being formed is divided from both sides;
The lead installation method of the carbon brush has following operation:
Lead installing hole manufacturing procedure, as the crow flies enters inside with from the surface of body of the brush for processing
Helicla flute that straight hole, the inwall along straight hole extend, the bottom for being formed in straight hole and internal diameter compares spiral fluted
The lead installing hole of the big wide diameter portion of external diameter, including:
Decline step, the decline for making drill bit for machining rotate to specify relative to body of the brush
Speed declines,
Stop step, when drill bit for machining drops to the depth of regulation relative to body of the brush, make to add
Work drill bit continues rotation but stops declining,
Up step, and then stops operation, rotates drill bit for machining with than declining
The fireballing rate of climb rises.
Insertion operation, by the base end part insertion lead installing hole of lead,
Filling procedure, fills conductive powder to around the lead in insertion lead installing hole,
Fixed work order, carries out pressurization compression to the conductive powder of filling to lead installing hole and fixes lead
On body of the brush.
2. the lead installation method of carbon brush as claimed in claim 1, it is characterised in that
The radius x of interval y and the top axle portion between the rotation centerline and the top corner part is full
Sufficient formula:y/x≥1.9.
3. the lead installation method of carbon brush as claimed in claim 1, it is characterised in that
Top cutting edge and the first periphery cutting edge angulation are 110~130 °, and the first periphery is cut
Sharpener and the second periphery cutting edge angulation are 80~100 °.
4. a kind of lead wire mounting structure of carbon brush, the carbon brush are to insert shape by the base end part by lead
Into in the lead installing hole of body of the brush, and conductive powder is filled to lead installing hole carry out pressurization pressure
Contracting, so that lead is fixed on carbon brush obtained from body of the brush, the spy of the lead wire mounting structure of the carbon brush
Levy and be,
The lead installing hole is with entering internal straight hole as the crow flies from the surface of body of the brush, along straight hole
The inwall helicla flute for extending, the bottom for being formed in straight hole and expanding bigger than spiral fluted external diameter of internal diameter
Portion.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2015184642A JP6153266B2 (en) | 2015-09-18 | 2015-09-18 | Carbon brush lead wire mounting structure |
JP2015-184642 | 2015-09-18 |
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Publication Number | Publication Date |
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CN106549284A true CN106549284A (en) | 2017-03-29 |
CN106549284B CN106549284B (en) | 2018-11-27 |
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CN201510931626.9A Active CN106549284B (en) | 2015-09-18 | 2015-12-15 | The lead installation method and lead wire mounting structure of carbon brush |
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CN (1) | CN106549284B (en) |
Cited By (1)
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CN115365765A (en) * | 2022-07-29 | 2022-11-22 | 广联航空工业股份有限公司 | Deep hole machining method with position precision requirement |
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CN115365765A (en) * | 2022-07-29 | 2022-11-22 | 广联航空工业股份有限公司 | Deep hole machining method with position precision requirement |
CN115365765B (en) * | 2022-07-29 | 2023-11-21 | 广联航空工业股份有限公司 | Deep hole machining method with position precision requirement |
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CN106549284B (en) | 2018-11-27 |
JP2017060338A (en) | 2017-03-23 |
JP6153266B2 (en) | 2017-06-28 |
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