CN111206147A - Steel rail heel clamping tool and using method - Google Patents
Steel rail heel clamping tool and using method Download PDFInfo
- Publication number
- CN111206147A CN111206147A CN202010187696.9A CN202010187696A CN111206147A CN 111206147 A CN111206147 A CN 111206147A CN 202010187696 A CN202010187696 A CN 202010187696A CN 111206147 A CN111206147 A CN 111206147A
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- Prior art keywords
- steel rail
- rail
- screw rod
- steel
- clamping
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 88
- 239000010959 steel Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000010791 quenching Methods 0.000 claims abstract description 13
- 230000000171 quenching effect Effects 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims abstract description 4
- 230000009286 beneficial effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/04—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rails
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to a steel rail heel clamping tool capable of fixing one end of a steel rail and enabling the other end of the steel rail to be in a vertically movable state and a using method, wherein the steel rail heel clamping tool comprises a clamping plate, a bottom plate, a steel rail, a vertical plate and a flat plate; the splint welding is on the web of rail, and two riser lower extremes constitute U style of calligraphy structures with dull and stereotyped connection respectively, and the non-welded web of rail region of rail has the hole that supplies the screw rod to pass, and screw rod one end passes the hole, and the screw rod both ends are supported and the screw rod both ends adopt packing ring and nut location respectively by the bearing inner circle of inlaying in the riser respectively. The advantages are that: the tool fixes one end of the steel rail and enables the other end of the steel rail to be in a vertically movable state by clamping the rail web and the rail bottom, so that the situation that clamping end clamping plates are burnt to cause the lower jaw of the rail head to be damaged due to short-time stop at the end can be avoided in the steel rail quenching process, and the quality of the quenched steel rail is stabilized.
Description
Technical Field
The invention relates to a steel rail heel clamping tool capable of fixing one end of a steel rail and enabling the other end of the steel rail to be in a vertically movable state and a using method thereof, and belongs to the field of manufacturing of steel rail heel clamping tools.
Background
In the prior art, some steel rails need to be subjected to off-line heat treatment, namely quenching before being used, so that the hardness of the rail head of the steel rail is improved, the wear resistance of the steel rail is improved, and the service life of the steel rail is prolonged. However, since the steel rail is locally heated and bent during quenching, one end of the steel rail needs to be fixed and the other end of the steel rail needs to be movable up and down during quenching on a quenching machine tool. The rail needs to stay for a short time of 10-30s at the beginning and end of the quenching to burn through the part. The existing tool fixes one end of the steel rail by clamping the rail head of the steel rail, so that when the clamped end stays, the clamped tool clamping plate is easy to burn or even partially slightly melt, and the burnt part is just in contact with the lower jaw of the rail head of the steel rail, so that the lower jaw of the rail head of the steel rail is damaged.
Disclosure of Invention
The design purpose is as follows: the defects in the background technology are avoided, and the rail heel clamping tool and the using method are designed, wherein one end of the rail is fixed, and the other end of the rail is in a vertically movable state.
The design scheme is as follows: in order to achieve the above design objectives. The invention achieves the purpose of fixing one end of the steel rail and enabling the other end to be in a vertically movable state by clamping the rail bottom part of the steel rail, is beneficial to implementing the quenching of the steel rail, avoids the condition that the lower jaw of the rail head is burnt, and achieves the purpose of stabilizing the quenching quality of the steel rail. In structural design, the rail heel end clamping tool is mainly characterized in that the rail bottom and the rail web of the steel rail are fixed through the clamping plate, the clamping plate is welded on the rail web of the steel rail, and the bottom plate is welded on the rail bottom part of the steel rail. The two clamping plates are similar in shape and are symmetrically manufactured, and the welding surface and the rail to be welded have similar curved surface shapes at the rail web part, so that the two clamping plates are convenient to mount, weld and clamp. The steel rail is a non-used steel rail, one end of the steel rail is obliquely milled to form a slope of 20-45 degrees from bottom to top, so that a subsequent tool can conveniently rotate along the screw, holes are formed in the rail web non-welding area of the steel rail, the steel rail is relatively fixed with the nearby base through the screw (the diameter of the screw is smaller than that of the holes), and the other end of the steel rail can move up and down along the screw. The steel rail end part is welded with a hanging ring, so that the tool is convenient to carry. The vertical plate and the flat plate are welded to form a base. The clamping plate and the corner at one side of the bottom plate are chamfered properly, so that the steel rail to be quenched is conveniently and smoothly fixed in the tool. The vertical plate is provided with a flat strip-shaped hole which is beneficial to installation and the front and back movement of the main structure of the tool.
The technical scheme 1: a steel rail heel clamping tool comprises a clamping plate, a bottom plate, a steel rail, a vertical plate and a flat plate; the splint welding is on the web of rail, and two riser lower extremes constitute U style of calligraphy structures with dull and stereotyped connection respectively, and the non-welded web of rail region of rail has the hole that supplies the screw rod to pass, and screw rod one end passes the hole, and the screw rod both ends are supported and the screw rod both ends adopt packing ring and nut location respectively by the bearing inner circle of inlaying in the riser respectively.
The technical scheme 2 is as follows: a method for using a steel rail heel clamping tool is characterized in that one end of a steel rail to be quenched is inserted into a gap formed by a clamping plate and a bottom plate of the tool, a hole is formed in a rail web non-welding area of the steel rail and is relatively fixed with a base beside the steel rail through a screw, and the diameter of the screw is smaller than that of the hole, so that the other end of the steel rail can move up and down along the screw, the implementation of quenching of the steel rail is facilitated, the condition that the jaw of a rail head is burnt is avoided, and the tool is convenient to carry by welding a hanging ring at the end part of the steel.
Compared with the prior art, the tool fixes one end of the steel rail and enables the other end of the steel rail to be in a vertically movable state by clamping the rail web and the rail bottom, so that the situation that clamping end clamping plates are burnt due to short-time stop of end heads in the process of quenching the steel rail to damage the lower jaw of a rail head can be avoided, and the quality of the quenched steel rail is stabilized.
Drawings
Fig. 1 is an overall schematic view of the tool.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is a schematic front view of the tooling without the base.
Fig. 4 is a schematic top view of fig. 3.
Fig. 5 is a schematic sectional view of the portion B-B in fig. 4.
Fig. 6 is a front view of the splint.
Fig. 7 is a schematic top view of fig. 6.
Fig. 8 is a schematic sectional view of the portion a-a in fig. 6.
Detailed Description
Example 1: reference is made to figures 1-8 of the drawings. A steel rail heel clamping tool is composed of clamping plates 8 and 9, a bottom plate 10, a steel rail 1, a vertical plate 6 and a flat plate 7; splint 8 and 9 welding are on the web of rail 1, and 6 lower extremes of two risers are connected with dull and stereotyped 7 respectively and constitute U style of calligraphy structure, and 1 non-welded web of rail region has the hole that supplies the screw rod to pass, and 3 one ends of screw rod pass the hole, and 3 both ends of screw rod are supported by 2 inner circles of bearing that inlay respectively in riser 6 and 3 both ends of screw rod adopt packing ring 5 and nut 4 location respectively. The diameter of the screw rod 3 is smaller than that of the hole, so that the other end of the steel rail can move up and down along the screw rod. One end of the steel rail 1 is obliquely milled at a slope of 20-45 degrees from bottom to top. A hanging ring 11 is welded at the end part of the steel rail 1. The vertical plate 6 is provided with a flat strip-shaped hole which is beneficial to installation and the front and back movement of the main structure of the tool. The manufacturing method comprises the following steps: the rail bottom and the rail web of the steel rail 1 are fixed through the clamping plates 8 and 9, the clamping plates 8 and 9 are welded on the rail web of the steel rail, the bottom plate 10 is welded on the rail bottom part of the steel rail, the two clamping plates are similar in shape and are symmetrically manufactured, and the welding surface and the steel rail to be welded have similar curved surface shapes on the rail web part, so that the installation, welding and clamping are facilitated.
Example 2: on the basis of embodiment 1, a method for using a steel rail heel clamping tool is characterized in that one end of a steel rail 12 to be quenched extends into a gap formed by clamping plates 8 and 9 and a bottom plate 10 of the tool, holes are formed in a rail waist non-welding area of the steel rail and are fixed relative to a nearby base through screws, and the diameters of the screws are smaller than the diameters of the holes, so that the other end of the steel rail can move up and down along the screws, the implementation of quenching of the steel rail is facilitated, the phenomenon that the jaw of a rail head is burnt is avoided, and the tool is convenient to carry by welding lifting rings at the end parts of the steel rail.
It is to be understood that: although the above embodiments have described the design idea of the present invention in more detail, these descriptions are only simple descriptions of the design idea of the present invention, and are not limitations of the design idea of the present invention, and any combination, addition, or modification without departing from the design idea of the present invention falls within the scope of the present invention.
Claims (6)
1. A steel rail heel clamping tool is characterized by comprising clamping plates (8 and 9), a bottom plate (10), a steel rail (1), a vertical plate (6) and a flat plate (7); splint (8 and 9) welding are on the web of rail (1), and two riser (6) lower extremes are connected with dull and stereotyped (7) respectively and are constituted U style of calligraphy structures, and rail (1) non-welded web of rail region has the hole that supplies the screw rod to pass, and screw rod (3) one end passes the hole, and screw rod (3) both ends are supported and screw rod (3) both ends adopt packing ring (5) and nut (4) location respectively by bearing (2) inner circle that inlays in riser (6).
2. The steel rail heel clamping tool according to claim 1, which is characterized in that: the diameter of the screw rod (3) is smaller than that of the hole, so that the other end of the steel rail can move up and down along the screw rod.
3. The steel rail heel clamping tool according to claim 1, which is characterized in that: one end of the steel rail (1) is obliquely milled at a slope of 20-45 degrees from bottom to top.
4. The steel rail heel clamping tool according to claim 1, which is characterized in that: a hanging ring (11) is welded at the end part of the steel rail (1).
5. The steel rail heel clamping tool according to claim 1, which is characterized in that: the vertical plate (6) is provided with a flat strip-shaped hole which is beneficial to installation and the front and back movement of the main structure of the tool.
6. A use method of a steel rail heel clamping tool is characterized by comprising the following steps: the tool is integrally fixed on a workbench of a quenching machine tool, one end of a steel rail to be quenched extends into a gap formed by 2 clamping plates and a bottom plate of the tool, the gap formed by the clamping plates and the bottom plate wraps the rail bottom and a rail bottom triangular area of the steel rail to be quenched, the rail waist of the steel rail to be quenched is clamped by the 2 clamping plates so that the steel rail to be quenched can not swing left and right, the rail bottom of the steel rail to be quenched is clamped by the clamping plates and the bottom plate so that the steel rail to be quenched can not freely move up and down, holes are formed in a non-welding area of the rail waist of the steel rail and are relatively fixed with a base beside through screws, and the diameters of the screws are smaller than the diameter of the holes, so that the other end of the steel rail to be quenched can only move up and down along the screws, the implementation of quenching of the steel rail is facilitated, the condition that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010187696.9A CN111206147A (en) | 2020-03-17 | 2020-03-17 | Steel rail heel clamping tool and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010187696.9A CN111206147A (en) | 2020-03-17 | 2020-03-17 | Steel rail heel clamping tool and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111206147A true CN111206147A (en) | 2020-05-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010187696.9A Pending CN111206147A (en) | 2020-03-17 | 2020-03-17 | Steel rail heel clamping tool and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111206147A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111994125A (en) * | 2020-09-17 | 2020-11-27 | 西南交通大学 | Rail bottom slope detection tool support and rail bottom slope detection equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB933860A (en) * | 1959-10-02 | 1963-08-14 | Yawata Iron & Steel Co | Heat hardened rail and heat treating apparatus therefor |
| CH678074A5 (en) * | 1988-06-23 | 1991-07-31 | Oerlikon Buehrle Schweisstech | Electroslag welding railway lines - involves filling hollow between rail ends and surrounding cooled two=part mould using fusible electrode guide tube |
| CN2231688Y (en) * | 1995-02-21 | 1996-07-24 | 冶金工业部重庆钢铁设计研究院 | Jointing device for heat treatment of rails |
| CN106222380A (en) * | 2016-08-31 | 2016-12-14 | 中国铁建重工集团有限公司 | A kind of fixture for hardening of rails |
| CN106337324A (en) * | 2016-11-03 | 2017-01-18 | 中国铁道科学研究院 | The groove rail steel rail telescopic adjusting device |
| CN206015022U (en) * | 2016-09-28 | 2017-03-15 | 河钢股份有限公司邯郸分公司 | A kind of device for preventing quenched rail bending from upwarping |
| CN211848074U (en) * | 2020-03-17 | 2020-11-03 | 中铁宝桥集团有限公司 | Steel rail heel clamping tool |
-
2020
- 2020-03-17 CN CN202010187696.9A patent/CN111206147A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB933860A (en) * | 1959-10-02 | 1963-08-14 | Yawata Iron & Steel Co | Heat hardened rail and heat treating apparatus therefor |
| CH678074A5 (en) * | 1988-06-23 | 1991-07-31 | Oerlikon Buehrle Schweisstech | Electroslag welding railway lines - involves filling hollow between rail ends and surrounding cooled two=part mould using fusible electrode guide tube |
| CN2231688Y (en) * | 1995-02-21 | 1996-07-24 | 冶金工业部重庆钢铁设计研究院 | Jointing device for heat treatment of rails |
| CN106222380A (en) * | 2016-08-31 | 2016-12-14 | 中国铁建重工集团有限公司 | A kind of fixture for hardening of rails |
| CN206015022U (en) * | 2016-09-28 | 2017-03-15 | 河钢股份有限公司邯郸分公司 | A kind of device for preventing quenched rail bending from upwarping |
| CN106337324A (en) * | 2016-11-03 | 2017-01-18 | 中国铁道科学研究院 | The groove rail steel rail telescopic adjusting device |
| CN211848074U (en) * | 2020-03-17 | 2020-11-03 | 中铁宝桥集团有限公司 | Steel rail heel clamping tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111994125A (en) * | 2020-09-17 | 2020-11-27 | 西南交通大学 | Rail bottom slope detection tool support and rail bottom slope detection equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200529 |