CN205571513U - Whole special milling cutter of pin -connected panel alloy steel railway frog work limit and tread - Google Patents
Whole special milling cutter of pin -connected panel alloy steel railway frog work limit and tread Download PDFInfo
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- CN205571513U CN205571513U CN201620091486.9U CN201620091486U CN205571513U CN 205571513 U CN205571513 U CN 205571513U CN 201620091486 U CN201620091486 U CN 201620091486U CN 205571513 U CN205571513 U CN 205571513U
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Abstract
The utility model discloses a whole special milling cutter of pin -connected panel alloy steel railway frog work limit and tread, the first front end of milling cutter are the cake type, and the rear end is cylindrical, does the cylindrical diameter in the first rear end of milling cutter do 238mm, does front end cake type diameter do 336mm, cake type thickness are 51.22mm, and the gross thickness is 83mm, be equipped with in the middle of the milling cutter head 60mm's mounting hole, at the diameter 336mm one end outwards is 87.14 to cake type edge its angle of leanin by the mounting hole edge, cake type rear end is to the inboard slope 101.31 of cake type, the first cake type front end inclined plane of milling cutter radially is equipped with the flat blade group no. 1 of array, the outward flange is equipped with the outer circular arc blade of R16 with cake type rear end juncture, be equipped with flat blade group no. 2 with circular arc blade junction in the R16, be equipped with circular arc blade in the R13 with flat blade group two -phase junction, flat blade group no. 3 is connected to the circular arc blade in the R13, does flat blade group no. 3 continue to the diameter of milling cutter head the 238mm end, flat blade group is 2.86 with the central line contained angle.
Description
Technical field
This utility model relates to a kind of pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter, belongs to railway switch Machining Technology field.
Background technology
Railway construction in China develops to high-speed overload direction, and the manganese steel frog employing decades has been gradually backed out the arena of history, and a kind of novel pin-connected panel alloy steel frog progressively instead of manganese steel frog；Pin-connected panel alloy steel frog is to be assemblied to form with rail, wing rail by steel alloy forging heart rail, fork, needs, through machining ability molding, to improve a lot than manganese steel frog at the aspect such as mechanical performance and serviceability after assembling.Mechanical processing process is accomplished by use suitable cutter, it is necessary to designed, designed one dedicated tool produces this pin-connected panel alloy steel frog；Owing to pin-connected panel alloy steel frog is to be forged heart rail by cuboid steel alloy, the fork of common rail shape forms through interval iron and bolt fastening with rail and wing rail, working edge is by the platform declining 50 millimeters from rail top, the transition arc of R16, 1:5 inclined-plane forms, rail top is by the transition arc of R13, the inclined-plane composition of 1:20, rail top and by 50 millimeters of sections to 20 millimeters profile height reduce by 2.5 millimeters, 7.5 millimeters are reduced again by 20 millimeters of sections to 10 millimeters profile height, 40 millimeters are reduced again by 10 millimeters of sections to 5 millimeters profile height, these planes, the processing of circular arc takes time and effort.
Summary of the invention
In order to overcome above-mentioned technical deficiency, this utility model provides a kind of pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter, and this pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter can disposably machine.
This utility model solves its technical barrier and be the technical scheme is that a kind of pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter, its structure is: milling head front end is cake type, rear end is cylindrical, milling head back end cylindrical shape is a diameter of, nose circle pie is a diameter of, and cake type thickness is 51.22mm, and gross thickness is 83mm, the installing hole being provided with in the middle of milling head, the uniform several unthreaded holes installing bolt of circular row outside installing hole；It is 87.14 ° by installing hole edge out to cake type edge its angle that slopes inwardly at diameter end, cake type rear end tilts 101.31 ° inside cake type, milling head cake type front end inclined plane is radially provided with the flat set of blades of array one, outward flange and cake type rear end intersection are provided with R16 external arc blade, it is provided with flat set of blades two with R16 Inner arc blade junction, it is provided with R13 Inner arc blade with flat set of blades two connection, R13 Inner arc blade connects flat set of blades three, flat set of blades three is extended to the diameter termination of milling head, flat set of blades three is 2.86 ° with centerlines；This milling cutter has six groups of effective teeth, often organizes effective tooth and is made up of three row's blades, totally ten eight row's blade, and between every two row's blades, angle is 20 degree, and often row's cutter is all made up of flat blade, interior R13 blade, outer R16 blade, and blade is connected fastening by bolt with cutter hub.
The beneficial effects of the utility model are: pin-connected panel alloy steel frog, after this milling cutter is processed, once reaches to use requirement, and time saving and energy saving, working (machining) efficiency is high, it is possible to uses this milling cutter to process each section decreasing value, reaches a cutter multiplex, saves processing cost；Pin-connected panel alloy steel frog achieves once to be installed and machines, it is ensured that each plane, the relative size precision of circular arc, it is ensured that between each, transition is the most smoother, makes train driving steady, to reduce the impact to train, extends the service life of train.
Accompanying drawing explanation
Fig. 1 is this utility model pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter sectional structure schematic diagram.
Fig. 2 is this utility model pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter left view.
Fig. 3 is the side view after this utility model pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter processing railway frog fork heart heart rail.
Fig. 4 is the top view after this utility model pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter processing railway frog fork heart heart rail.
Fig. 5 is the A-A sectional view of Fig. 3.
Fig. 6 is the B-B sectional view of Fig. 3.
Fig. 7 is the C-C sectional view of Fig. 3.
Fig. 8 is the sectional view one of section after this utility model pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter processing railway frog.
Fig. 9 is the sectional view two of section after this utility model pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter processing railway frog.
Figure 10 is the sectional view three of section after this utility model pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter processing railway frog.
In figure: 1, milling head, 2, flat set of blades one, 3, R16 external arc blade, 4, flat set of blades two, 5, R13 Inner arc blade, 6, flat set of blades three, 7, installing hole, 8, unthreaded hole.
Detailed description of the invention
A kind of pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter, as shown in Fig. 1 Fig. 2, its structure is: milling head 1 front end is cake type, rear end is cylindrical, and milling head 1 back end cylindrical shape is a diameter of, and nose circle pie is a diameter of, cake type thickness is 51.22mm, gross thickness is 83mm, the installing hole 7 being provided with in the middle of milling head 1, the uniform several unthreaded holes 8 installing bolt of circular row outside installing hole 7；It is 87.14 ° by installing hole 7 edge out to cake type edge its angle that slopes inwardly at diameter end, cake type rear end tilts 101.31 ° inside cake type, milling head 1 cake type front end inclined plane is radially provided with the flat set of blades of array 1, outward flange and cake type rear end intersection are provided with R16 external arc blade 3, it is provided with flat set of blades 24 with R16 Inner arc blade 3 junction, it is provided with R13 Inner arc blade 5 with flat set of blades 24 connection, R13 Inner arc blade 5 connects flat set of blades 36, flat set of blades 36 is extended to the diameter termination of milling head 1, flat set of blades 36 is 2.86 ° with centerlines.
This milling cutter has six groups of effective teeth, often organizes effective tooth and is made up of three row's blades, totally ten eight row's blade, and between every two row's blades, angle is 20 degree, and often row's cutter is all made up of flat blade, interior R13 blade, outer R16 blade, and blade is connected fastening by bolt with cutter hub.
The railway frog fork heart heart rail figure processed by this milling cutter and sectional view, as shown in Fig. 3-Fig. 7, it takes on both sides is R13 external arc, is R16 Inner arc inside its lower shoulder, and bilateral working edge angle is 1:5.
As Figure 8-Figure 10, being to process wing rail rail head inner side surface distance forging heart trackside face flangeway size 46mm, forging heart rail is 46mm by 0mm section to 50mm section bilateral.
Claims (1)
1. a pin-connected panel alloy steel frog working edge and rail top entirety special-purpose milling cutter, it is characterized in that: milling head (1) front end is cake type, rear end is cylindrical, milling head (1) back end cylindrical shape is a diameter of, nose circle pie is a diameter of, and cake type thickness is 51.22mm, and gross thickness is 83mm, the installing hole (7) being provided with in the middle of milling head (1), installing hole (7) the outside uniform several unthreaded holes (8) installing bolt of circular row；It is 87.14 ° by installing hole (7) edge out to cake type edge its angle that slopes inwardly at diameter end, cake type rear end tilts 101.31 ° inside cake type, milling head (1) cake type front end inclined plane is radially provided with the flat set of blades of array one (2), outward flange and cake type rear end intersection are provided with R16 external arc blade (3), it is provided with flat set of blades two (4) with R16 Inner arc blade (3) junction, it is provided with R13 Inner arc blade (5) with flat set of blades two (4) connection, R13 Inner arc blade (5) connects flat set of blades three (6), flat set of blades three (6) is extended to the diameter termination of milling head (1), flat set of blades three (6) is 2.86 ° with centerlines；This milling cutter has six groups of effective teeth, often organizes effective tooth and is made up of three row's blades, totally ten eight row's blade, and between every two row's blades, angle is 20 degree, and often row's cutter is all made up of flat blade, interior R13 blade, outer R16 blade, and blade is connected fastening by bolt with cutter hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620091486.9U CN205571513U (en) | 2016-01-29 | 2016-01-29 | Whole special milling cutter of pin -connected panel alloy steel railway frog work limit and tread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620091486.9U CN205571513U (en) | 2016-01-29 | 2016-01-29 | Whole special milling cutter of pin -connected panel alloy steel railway frog work limit and tread |
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| CN205571513U true CN205571513U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620091486.9U Active CN205571513U (en) | 2016-01-29 | 2016-01-29 | Whole special milling cutter of pin -connected panel alloy steel railway frog work limit and tread |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834500A (en) * | 2016-01-29 | 2016-08-10 | 哈尔滨铁路局工业总公司齐齐哈尔工务机械厂 | Split mounting-type alloy steel frog working edge and rail top integral special-purpose milling cutter |
-
2016
- 2016-01-29 CN CN201620091486.9U patent/CN205571513U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834500A (en) * | 2016-01-29 | 2016-08-10 | 哈尔滨铁路局工业总公司齐齐哈尔工务机械厂 | Split mounting-type alloy steel frog working edge and rail top integral special-purpose milling cutter |
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