CN103726417A - Manufacturing method of point curved switch rail - Google Patents
Manufacturing method of point curved switch rail Download PDFInfo
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- CN103726417A CN103726417A CN201410026746.XA CN201410026746A CN103726417A CN 103726417 A CN103726417 A CN 103726417A CN 201410026746 A CN201410026746 A CN 201410026746A CN 103726417 A CN103726417 A CN 103726417A
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- curved switch
- tongue
- sharp
- curved
- inlayed
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Abstract
The invention relates to a manufacturing method of a curved switch rail for a railway, and particularly relates to a manufacturing method of a point curved switch rail. The method comprises the following steps of making a curved switch rail body according to the whole original curved switch rail: processing from the start end surface of the curved switch rail body to obtain an inverted T-shaped structure with equal section width; making a switch rail point panel according to the whole curved switch rail; mounting the switch rail point panel on the side of the curved switch rail close to a stock rail to form a point curved switch rail with the same specification as the original curved switch rail. Compared with the prior art, by adopting the method provided by the invention, the switch rail point panel and the curved switch rail body are combined together to form the whole curved switch rail, so that the strength requirement is met, the cost is lowered, and the service life of the curved switch rail can be prolonged.
Description
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Technical field
the present invention relates to the preparation method, particularly a kind of preparation method of inlaying sharp curved switch of a kind of railway curved switch.
Background technology
the bulk heat treatmet that tradition tongue heat treatment method is tongue, China adopts and starts to carry out the quenching of tongue rail head surface by the wide 5mm section of tongue rail head.But tongue top to the wide 5mm section of tongue rail head tongue is not implemented to quench, the hardness abrasion resistance intensity of tongue is all limited in certain scope, hardness is between HRC32～34, in addition railway transportation is because vehicle density is high, freight volume is large, speed is fast, during by track switch side direction, the centrifugal force producing laterally, longitudinally produces huge impact to tongue, has aggravated tongue side, vertically abrasion.The point of switch is sawtooth pattern abrasion, fall piece, very easily producing train off-line accident occurs, tongue is the consumable accessory in track switch, the improper side wear in the bent point of switch place of track switch is just quite outstanding, because the very serious tongue of wearing and tearing of the poor tongue of the low anti-wear performance of hardness transfinites because of abrasion, physical dimension can not guarantee to regularly replace at short notice affects normally carrying out of railway transportation, and the bent stock rail life-span can only reach track switch entirety and allow 1/4 of the life-span; Change the problem that the point of switch is easy to wear, fall piece, the use longevity that extends tongue is the problem that the railway system attaches great importance to always.
china starts to adopt bainite rail to be processed into bainite point tongue now, but manufacturing cost is high.
Summary of the invention
order of the present invention is to provide a kind of intensity to meet the demands and uses the preparation method of the edge point curved switch of low cost of manufacture.
the present invention adopts following technical scheme:
a kind of preparation method of inlaying sharp curved switch, carry out as follows: first, according to the overall processing and fabricating curved switch body of original curved switch: curved switch body is processed from top end face, be processed into the inversion T font structure of equal section width, next, then inlay sharp plate according to the integral manufacturing tongue of curved switch; Tongue is inlayed to sharp plate and be arranged on the side of curved switch body near stock rail, both are installed together and form the edge point curved switch identical with original curved switch structure.
adopt the present invention of technique scheme compared with prior art, tongue inlays sharp plate and curved switch body is combined formation curved switch entirety, has met requirement of strength, has reduced again cost, and can extend the application life of curved switch.
the preferred version that the present invention adopts is:
tongue is inlayed sharp plate and is adopted high-strength wearable bainitic steel to be made.
the rail of curved switch body is processed several through holes with it; Tongue is inlayed the rail of sharp plate and is also processed several installing holes with it.
tongue is inlayed the side that sharp plate contacts with curved switch body and first by modified-acrylic adhesive, is undertaken bonding; By bolt, connect again.
the rail that tongue is inlayed on sharp plate is processed several stair-stepping installing holes with it.
according to the overall processing and fabricating curved switch body of original curved switch: the length direction that is 18～22mm to cross section width from top end face of curved switch body is processed into the inversion T font structure of equal section width, secondly, according to the integral manufacturing tongue of curved switch, inlay sharp plate again: tongue is inlayed sharp plate and is processed into the length equating with equal section width T font structure, tongue is inlayed to sharp plate and be arranged on the side of curved switch body near stock rail, both are installed together and form the edge point curved switch identical with original curved switch structure.
the modified-acrylic adhesive thickness that tongue is inlayed between sharp plate and curved switch body is 1mm; After modified-acrylic adhesive is inlayed tongue sharp plate and is connected with curved switch body, obtain the edge point curved switch identical with original curved switch structure.
Accompanying drawing explanation
fig. 1 is the syndeton schematic diagram of curved switch entirety of the present invention.
fig. 2 is the structural representation of curved switch body.
fig. 3 is the structural representation that tongue is inlayed sharp plate.
fig. 4 is the B-B cross-section structure in Fig. 1.
fig. 5 is the F portion enlarged drawing in Fig. 4.
fig. 6 is the top end view drawing (A end face structure in figure) in Fig. 1.
fig. 7 is the C-C profile in Fig. 1.
fig. 8 is the E portion enlarged drawing in Fig. 4.
The specific embodiment
below in conjunction with drawings and Examples in detail the present invention is described in detail:
referring to accompanying drawing 1 to label and size in accompanying drawing 8, in figure: curved switch body 1, left half 11, right half 12; The first arc structure 101, the second arc structure 102, rail body 1011, tongue are inlayed sharp plate 2, inlay sharp plate the first arc structure 201, are inlayed sharp plate the second arc structure 202; Installing hole 3, bolt 4, unprocessed curved switch body part 5, through hole 6, (solidifying) modified-acrylic adhesive 7.
the concrete preparation method of the present embodiment is:
inlay a preparation method for sharp curved switch, with reference to the size indicating in each figure, carry out as follows:
first, according to the overall dimensions processing and fabricating curved switch body 1 of original curved switch (curved switch of the sharp structure of non-edge in prior art): curved switch body 1 is machined to the position that cross section width is 18mm from top end face from top to bottom by the mode of milling, the length that this disconnected length of processing is 1462mm, obtains the inversion type T font structure of equal section width after this disconnected processing.
the wherein both sides of inversion type T font structure bottom unequal, shown in accompanying drawing 2: the length of original left half 11 is greater than the size of the right half 12 obtaining after processing; Next, then inlay sharp plate 2 according to the integral manufacturing tongue of original curved switch; Tongue is inlayed to sharp plate 2 and be arranged on the side of curved switch body 1 near stock rail, both are installed together and form the edge point curved switch identical with original curved switch structure.
the preferred processing mode of the present embodiment institute is: tongue is inlayed sharp plate 2 and adopted high-strength wearable bainitic steel to be made; On the rail body 1011 of curved switch body 1, process nine through holes 6; Tongue is inlayed the rail of sharp plate 2 and is also processed nine stair-stepping installing holes 3 with it.Installing hole 3 positions are corresponding, so that curved switch body 1 and tongue are inlayed to sharp plate 2 by bolt 4, are connected.
tongue is inlayed the side that sharp plate 2 contacts with curved switch body 1 and first by modified-acrylic adhesive, is undertaken bonding; Modified-acrylic adhesive 7 thickness that tongue is inlayed between sharp plate 2 and curved switch body 2 after solidifying are 1mm; After tongue being inlayed to sharp plate 2 and is connected with curved switch body 1 by modified-acrylic adhesive, obtain the edge point curved switch identical with existing curved switch specification.
the top of bolt 4 is placed in stepped installing hole 3, and bolt 4 stretches out after the other end mounting nuts of through hole to be inlayed sharp plate 2 by curved switch body 1 and tongue and be fixed together.
concentrated in order to eliminate stress, to adding man-hour at curved switch body 1, bottom is processed with the first arc structure 101, and top is processed with the second Circular plate structure 102; Tongue is inlayed to sharp plate 2 position of installing of matching with curved switch body 1 and be also processed with respectively the sharp plate of edge the first arc structure 201 and sharp plate the second arc structure 202 of edge.
the present embodiment, first process curved switch body 1 rear in, from curved switch body 1 top to 18mm section part, be bumped into high-strength abrasion-proof bainite tongue and inlay sharp plate 2, solve rail entirety and adopt the high problem of bainitic steel cost, while needing to repair after wearing and tearing, only need change high-strength abrasion-proof bainite tongue and inlay sharp plate 2; Tongue is inlayed sharp plate 2 and is not born train vertical load, a Under Lateral Loading, and tongue is inlayed sharp plate and is only born the horizontal force that is no more than 7 tons.Therefore, the feature that have that technique is simple, stable performance, low cost of manufacture, resource repeats recycling, adopts bainite tongue to inlay the synthetic curved switch of manufacturing of sharp plate 2 and reaches 200,000,000 tons by total amount, is 150% of former potassium steel tongue application life; There is good economic benefit and practical value.
tongue is inlayed sharp plate 2 and is adopted high-strength wearable steel NM400 steel, and tensile strength reaches 1200Mpa, and hardness reaches 400HB, and elongation per unit length 9% is higher than the abrasion resistance of rail, and zigzag wearing and tearing can not occur at the tip of curved switch in use.
by modified acrylic ester as binder bonding, intensity reaches 45Mpa, compared with mechanical strength of resin 10～15Mpa, improves nearly three times, and in use procedure, safety factor is higher.
high-strength wearable steel NM400 steel has: intensity is high, toughness plasticity good, especially toughness is better, 2～5 times of pearlite steel rail, stud with bainite tongue and inlay the toughness index of the curved switch of sharp plate 2 and be better than significantly pearlite point tongue, do not need to carry out Quenching Treatment simultaneously and just can guarantee that full section has height and uniform hardness bainite point tongue without the serious fatigue defects such as piece that peel off; Anti-wear performance is compared pearlite tongue and is had clear superiority.
Claims (7)
1. inlay a preparation method for sharp curved switch, carry out as follows:
First, according to the overall processing and fabricating curved switch body of original curved switch: curved switch body is processed from top end face, be processed into the inversion T font structure of equal section width, secondly, then inlay sharp plate according to the integral manufacturing tongue of curved switch; Tongue is inlayed to sharp plate and be arranged on the side of curved switch body near stock rail, both are installed together and form the edge point curved switch identical with original curved switch specification.
2. the preparation method of the sharp curved switch of edge according to claim 1, is characterized in that: tongue is inlayed sharp plate and adopted high-strength wearable bainitic steel to be made.
3. the preparation method of the sharp curved switch of edge according to claim 1, is characterized in that: the rail of curved switch body is processed several through holes with it; Tongue is inlayed the rail of sharp plate and is processed several installing holes with it.
4. the preparation method of the sharp curved switch of edge according to claim 1, is characterized in that: tongue is inlayed the side that sharp plate contacts with curved switch body and first by modified-acrylic adhesive, undertaken bonding; By bolt, connect again.
5. the preparation method of the sharp curved switch of edge according to claim 3, is characterized in that: the rail that tongue is inlayed on sharp plate is processed several stair-stepping installing holes with it.
6. the preparation method of the sharp curved switch of edge according to claim 1, it is characterized in that: according to the overall processing and fabricating curved switch body of original curved switch: the length direction that is 18～22mm to cross section width from top end face of curved switch body is processed into the inversion type T font structure of equal section width, secondly, according to the integral manufacturing tongue of curved switch, inlay sharp plate again: tongue is inlayed sharp plate and is processed into the length equating with equal section width T font structure, tongue is inlayed to sharp plate and be arranged on the side of curved switch body near stock rail, both are installed together and form the edge point curved switch identical with original curved switch structure.
7. the preparation method of the sharp curved switch of edge according to claim 4, is characterized in that: the modified-acrylic adhesive thickness that tongue is inlayed between sharp plate and curved switch body is 1mm; After modified-acrylic adhesive is inlayed tongue sharp plate and is connected with curved switch body, obtain the edge point curved switch identical with original curved switch structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410026746.XA CN103726417A (en) | 2014-01-21 | 2014-01-21 | Manufacturing method of point curved switch rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410026746.XA CN103726417A (en) | 2014-01-21 | 2014-01-21 | Manufacturing method of point curved switch rail |
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| Publication Number | Publication Date |
|---|---|
| CN103726417A true CN103726417A (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410026746.XA Pending CN103726417A (en) | 2014-01-21 | 2014-01-21 | Manufacturing method of point curved switch rail |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080045A (en) * | 2019-04-08 | 2019-08-02 | 安徽圣方机械制造有限公司 | A kind of composite structure of turnout curve tongue |
| CN115156852A (en) * | 2022-07-20 | 2022-10-11 | 中铁宝桥集团有限公司 | Processing and manufacturing method of climbing switch rail |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009129759A1 (en) * | 2008-04-24 | 2009-10-29 | Azd Praha S.R.O. | Point roller chair |
| CN102162208A (en) * | 2011-01-21 | 2011-08-24 | 王平 | High-strength turnout switch |
| CN102877382A (en) * | 2012-10-26 | 2013-01-16 | 大连铁联铁路器材制造有限公司 | Alloy steel reinforced point rail |
| CN203320363U (en) * | 2013-07-04 | 2013-12-04 | 济钢集团有限公司 | Anti-derailment and wearing resistance railway switch |
-
2014
- 2014-01-21 CN CN201410026746.XA patent/CN103726417A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009129759A1 (en) * | 2008-04-24 | 2009-10-29 | Azd Praha S.R.O. | Point roller chair |
| CN102162208A (en) * | 2011-01-21 | 2011-08-24 | 王平 | High-strength turnout switch |
| CN102877382A (en) * | 2012-10-26 | 2013-01-16 | 大连铁联铁路器材制造有限公司 | Alloy steel reinforced point rail |
| CN203320363U (en) * | 2013-07-04 | 2013-12-04 | 济钢集团有限公司 | Anti-derailment and wearing resistance railway switch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080045A (en) * | 2019-04-08 | 2019-08-02 | 安徽圣方机械制造有限公司 | A kind of composite structure of turnout curve tongue |
| CN110080045B (en) * | 2019-04-08 | 2020-10-27 | 安徽圣方机械制造有限公司 | Combined structure of switch curve switch rail |
| CN115156852A (en) * | 2022-07-20 | 2022-10-11 | 中铁宝桥集团有限公司 | Processing and manufacturing method of climbing switch rail |
| CN115156852B (en) * | 2022-07-20 | 2024-05-03 | 中铁宝桥集团有限公司 | Climbing type switch rail processing and manufacturing method |
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Application publication date: 20140416 |