US3380725A - Machine for through quenching of rolled profiles, especially of railway rails - Google Patents

Machine for through quenching of rolled profiles, especially of railway rails Download PDF

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Publication number
US3380725A
US3380725A US372924A US37292464A US3380725A US 3380725 A US3380725 A US 3380725A US 372924 A US372924 A US 372924A US 37292464 A US37292464 A US 37292464A US 3380725 A US3380725 A US 3380725A
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Prior art keywords
quenching
rails
tank
carriages
machine
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US372924A
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Gubert Stanislav Vladimirovich
Rabinovich Dvoira Mos Aronovna
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G SOUZNY I PROEKT METALL ZD OV
GOSUDARSTVENNY SOUZNY INSTITUTE PO PROEKTIROVANIU METALLURGICHESKICH ZAVODOV
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G SOUZNY I PROEKT METALL ZD OV
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    • 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
    • C21D1/63—Quenching devices for bath quenching

Definitions

  • the present invention relates to heat treatment of metals and, more particularly, to machines for through quenching of rails.
  • the rail is transferred by means of a conveyor on the tank cover; under the action of the rail weight, said hinged cover turns, automatically opening the tank, and the rail being received by the bars located on the inside wall of the tank is submerged into the oil; then the spring-loaded cover closes the inlet opening of the tank.
  • a rake travelling over the vertical wall of the tank withdraws the cooled rail.
  • the take is moved by means of a rope and a winch.
  • An object of the present invention is to provide a machine ensuring both straightness of rolled profiles, especially of railroad rails, in the course of quenching and the possibility of simultaneous treatment of several rails.
  • this invention ertains to a machine for through quenching of rails comprising a drum intermittently rotating in a tank, said drum being provided with multiarm spiders carrying loosely suspended carriages with rollers intended to hold and straighten rails as described here and below and claimed in the appended claims.
  • FIG. 1 is a cross-sectional view of the machine according to the invention.
  • FIG. 2 is an end view of the spider
  • FIG. 3 is a side view of the carriage
  • FIG. 4 is a sectional view of the carriage taken along line AA in FIG. 3;
  • FIG. 5 is a side view of the shaft support structure.
  • the machine (FIG. 1) comprises a tank 1 with a cooling medium, e.g., oil, provided with an oil feeding receiver 2, and a drain receiver 3 having respectively a feeding pipe 4 and a drainage pipe 5, a cover 6 with locks 7, a pipe line 8 for inert gas delivery, an emergency drain 9, and a device for charging the rails into the machine and their withdrawal.
  • a cooling medium e.g., oil
  • a drum 10 which consists of a tightly welded hollow shaft 11 with closed ends, the ends of the shaft resting on roller bearings 12; to prevent deflection the shaft is supported by roller suspenders 13 secured to the steel structure 14 of the tank.
  • roller suspenders 13 secured to the steel structure 14 of the tank.
  • Several multiarm split spiders 15 are mounted on the shaft 11.
  • Each multiarm split spider (FIG. 2) is connected by means of bolts 16, bosses 17 are provided on the ends of the spider arms with bearings 18 mounted therein, the latter supporting the journals 19 (FIG. 3) of the carriages 20 (FIG. 1).
  • the carriage 20 comprises a frame 21 (FIG. 3) with journals 19, with three upper rolled rollers 22 and five lower smooth cylindrical rollers 23 mounted in said frame.
  • the rollers rotate on axles 24 and bushings 25 (FIG. 4).
  • the machine is operated as follows: the tank is filled with oil or other liquid up to a predetermined level.
  • the oil is fed and drained continuously, the cooled oil flow being controlled so as to maintain a constant temperature in the tank.
  • the free space in the tank above the oil level is filled with inert gas to prevent ignition.
  • the drum is rotated by means of two synchronized drives located at its ends.
  • the heated rail with the head upwards is transferred into the carriages between the upper profile and lower smooth rollers. After the rail is gripped in the carriage the drum is rotated through 30, the rail fully submerges into the oil and another rail is transferred into the next carriage.
  • the quenched rail is pushed out from the carriage and transferred by a conveying device for tempering, which is the next operation.
  • Apparatus for quenching railroad rails in a liquid medium comprising a tank for containing a liquid quenching medium, an intermittently rotatable drum in said tank, spiders mounted on said drum for rotation therewith, said spiders including radial arms, carriages having ends loosely mounted in arms of adjacent spiders such that said carriages occupy, under gravity, a substantially vertical position, and means on said carriages for engaging rails therein at a number of locations along each rail to hold the rails securely in a straightened condition in said carriages, the carriages and rails being immersed into the quenching medium as the drum rotates.
  • each said carriage includes journals at said ends, said journals being rotatably supported in the arms of the spiders such that the carriage assumes a constant vertical position as the drum rotates.
  • said means for holding the rails in the carriages comprises in each carriage an upper profiled roller and a lower smooth roller, said rollers holding a rail, with the head thereof facing upwards in the carriage during rotation of said drum.
  • said means for holding the rails in the carriages comprises, in each carriage. a plurality of spaced upper profiled rollers and a plurality of spaced lower smooth rollers, said rollers holding a rail, with the head thereof facing upwards in the carriage during rotation of said drum.
  • Apparatus as claimed in claim 1 comprising roller earings supporting said drum.
  • Apparatus as claimed in claim 1 comprising roller suspenders secured to said tank and supporting said drum.
  • Apparatus as claimed in claim 1 comprising bosses with bearings on the arms of the spiders, said carriages including journals at said ends thereof mounted in the bearings of the spider arms.
  • Apparatus as claimed in claim 1 comprising means for filling the free space in the tank above the level of the quenching medium with inert gas.

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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)
  • Heat Treatment Of Articles (AREA)

Description

Apnl 30, 1968 s v. GUBERT ETAL 3,380,725
MACHINE FOR THROUGH QUENCHING OF ROLLED PROFILES, ESPECIALLY OF RAILWAY RAILS 3 Sheets-Sheet 1 Filed June 5, 1964 FIG./
Ell
April 30, 1968 s. v. GUBERT ETAL 3,380,725
MACHINE FOR THROUGH QUENCHING OF ROLLED PROFILES, ESPECIALLY OF RAILWAY RAILS Filed June 5. 1964 3 Sheets-Sheet 2 April 30, 1968 s. v. GUBERT ETAL 3,380,725
MACHINE FOR THROUGH QUENCHING OF ROLLED PROFILES, ESPECIALLY 0F RAILWAY RAILS Filed June 5, 1964 3 Sheets-Sheet 5 FIG.4
United States Patent MACHINE FOR THROUGH QUENCHING 0F ROLLED PROFILES, ESPECIALLY 0F RAIL- WAY RAILS Stauislav Vladimirovich Gilbert, Moscow, and Dvoira Masha Aronovna Rabinovich, Nizhny Tagil, U.S.S.R., assignors to Gosudarstvenny souzny Institute po proektirovaniu metallurgicheskich zavodov, Moscow, U.S.S.R.
Filed June 5, 1964, Ser. No. 372,924 9 Claims. (Cl. 266-6) The present invention relates to heat treatment of metals and, more particularly, to machines for through quenching of rails.
We are aware that prior to this invention installations were known for quenching railroad rails in oil and other quenching mediums, one of such installations for instance, being an arrangement comprising a tank with an inclined bottom and a hinged cover with springs for maintaining it in the horizontal position. Pipes are provided inside the tank for cooling the oil in the tank.
The rail is transferred by means of a conveyor on the tank cover; under the action of the rail weight, said hinged cover turns, automatically opening the tank, and the rail being received by the bars located on the inside wall of the tank is submerged into the oil; then the spring-loaded cover closes the inlet opening of the tank. A rake travelling over the vertical wall of the tank withdraws the cooled rail. The take is moved by means of a rope and a winch.
A disadvantage of heat treatment in the installation described in the undesirable rail warping which results as well as the impossibility of simultaneous treatment of several rails.
An object of the present invention is to provide a machine ensuring both straightness of rolled profiles, especially of railroad rails, in the course of quenching and the possibility of simultaneous treatment of several rails.
In accordance with the above-mentioned object, this invention ertains to a machine for through quenching of rails comprising a drum intermittently rotating in a tank, said drum being provided with multiarm spiders carrying loosely suspended carriages with rollers intended to hold and straighten rails as described here and below and claimed in the appended claims.
Although the present invention is described herein with reference to a preferred embodiment, changes and variations are possible without departing from the concept and scope of the present invention, as those skilled in the art will readily understand. Further objects and advantages of the invention will become apparent from the following description and the accompanying drawings, wherein:
FIG. 1 is a cross-sectional view of the machine according to the invention;
FIG. 2 is an end view of the spider;
FIG. 3 is a side view of the carriage;
FIG. 4 is a sectional view of the carriage taken along line AA in FIG. 3;
FIG. 5 is a side view of the shaft support structure.
The machine (FIG. 1) comprises a tank 1 with a cooling medium, e.g., oil, provided with an oil feeding receiver 2, and a drain receiver 3 having respectively a feeding pipe 4 and a drainage pipe 5, a cover 6 with locks 7, a pipe line 8 for inert gas delivery, an emergency drain 9, and a device for charging the rails into the machine and their withdrawal.
Inside the tank is a drum 10 which consists of a tightly welded hollow shaft 11 with closed ends, the ends of the shaft resting on roller bearings 12; to prevent deflection the shaft is supported by roller suspenders 13 secured to the steel structure 14 of the tank. Several multiarm split spiders 15 are mounted on the shaft 11.
Each multiarm split spider (FIG. 2) is connected by means of bolts 16, bosses 17 are provided on the ends of the spider arms with bearings 18 mounted therein, the latter supporting the journals 19 (FIG. 3) of the carriages 20 (FIG. 1).
The carriage 20 comprises a frame 21 (FIG. 3) with journals 19, with three upper rolled rollers 22 and five lower smooth cylindrical rollers 23 mounted in said frame. The rollers rotate on axles 24 and bushings 25 (FIG. 4).
The machine is operated as follows: the tank is filled with oil or other liquid up to a predetermined level. The oil is fed and drained continuously, the cooled oil flow being controlled so as to maintain a constant temperature in the tank. The free space in the tank above the oil level is filled with inert gas to prevent ignition.
The drum is rotated by means of two synchronized drives located at its ends.
The heated rail with the head upwards is transferred into the carriages between the upper profile and lower smooth rollers. After the rail is gripped in the carriage the drum is rotated through 30, the rail fully submerges into the oil and another rail is transferred into the next carriage.
At the tenth turn of the drum (3(10") the quenched rail is pushed out from the carriage and transferred by a conveying device for tempering, which is the next operation.
We claim:
1. Apparatus for quenching railroad rails in a liquid medium, said apparatus comprising a tank for containing a liquid quenching medium, an intermittently rotatable drum in said tank, spiders mounted on said drum for rotation therewith, said spiders including radial arms, carriages having ends loosely mounted in arms of adjacent spiders such that said carriages occupy, under gravity, a substantially vertical position, and means on said carriages for engaging rails therein at a number of locations along each rail to hold the rails securely in a straightened condition in said carriages, the carriages and rails being immersed into the quenching medium as the drum rotates.
2. Apparatus as claimed in claim 1, wherein each said carriage includes journals at said ends, said journals being rotatably supported in the arms of the spiders such that the carriage assumes a constant vertical position as the drum rotates.
3. Apparatus as claimed in claim 2, wherein said journals are eccentrically supported on said carriage.
4. Apparatus as claimed in claim 1, wherein said means for holding the rails in the carriages comprises in each carriage an upper profiled roller and a lower smooth roller, said rollers holding a rail, with the head thereof facing upwards in the carriage during rotation of said drum.
5. Apparatus as claimed in claim 1, wherein said means for holding the rails in the carriages comprises, in each carriage. a plurality of spaced upper profiled rollers and a plurality of spaced lower smooth rollers, said rollers holding a rail, with the head thereof facing upwards in the carriage during rotation of said drum.
6. Apparatus as claimed in claim 1 comprising roller earings supporting said drum.
7. Apparatus as claimed in claim 1 comprising roller suspenders secured to said tank and supporting said drum.
8. Apparatus as claimed in claim 1 comprising bosses with bearings on the arms of the spiders, said carriages including journals at said ends thereof mounted in the bearings of the spider arms.
9. Apparatus as claimed in claim 1 comprising means for filling the free space in the tank above the level of the quenching medium with inert gas.
References Cited UNITED STATES PATENTS 4 Thibaudier et al. 266-6 X Sevlen et al 148-155 X Evans 198-211 X Kearney et a1 198-211 Gogan 266-6 1. SPENCER OVERHOLSER, Primary Examiner.
JOHN F. CAMPBELL, Examiner.
10 J. D. HOBART, R. S. ANNEAR, Assistant Examiners.

Claims (1)

1. APPARATUS FOR QUENCHING RAILROAD RAILS IN A LIQUID MEDIUM, SAID APPARATUS COMPRISING A TANK FOR CONTAINING A LIQUID QUENCHING MEDIUM, AN INTERMITTENTLY ROTATABLE DRUM IN SAID TANK, SPIDERS MOUNTED ON SAID DRUM FOR ROTATION THEREWITH, SAID SPIDERS INCLUDING RADIAL ARMS, CARRIAGES HAVING ENDS LOOSELY MOUNTED IN ARMS OF ADJACENT SPIDERS SUCH THAT SAID CARRIAGES OCCUPY, UNDER GRAVITY, A SUBSTANTIALLY VERTICAL POSITION, AND MEANS ON SAID CARRIAGES FOR ENGAGING RAILS THEREIN AT A NUMBER OF LOCATIONS ALONG EACH RAIL TO HOLD THE RAILS SECURELY IN A STRAIGHTENED CONDI-
US372924A 1964-06-05 1964-06-05 Machine for through quenching of rolled profiles, especially of railway rails Expired - Lifetime US3380725A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089019A2 (en) * 1982-03-17 1983-09-21 Kruppert Enterprises, Inc. Method and apparatus for sequentially quenching steel pipes
US4575054A (en) * 1982-02-08 1986-03-11 Kruppert Enterprises, Inc. Apparatus for quenching steel pipes
US20120098171A1 (en) * 2009-05-20 2012-04-26 Daniel & C. Officine Meccaniche S.P.A. Cooling tank for rails

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US233242A (en) * 1880-10-12 Apparatus for tempering coiled springs
US401206A (en) * 1889-04-09 Samuel t
US1008674A (en) * 1910-12-05 1911-11-14 James C Russell Treating of metal articles.
US1177846A (en) * 1914-10-19 1916-04-04 Mohr & Sons John Sterilizer and the like.
US1526513A (en) * 1921-12-15 1925-02-17 Francois Joseph Claude A Louis Process and apparatus for the thermic treatment of steels and in ceneral of all other alloys susceptible of hardening
US2787566A (en) * 1951-10-17 1957-04-02 Deutsche Edelstahlwerke Ag Process and apparatus for the inductive surface hardening of cylindrical workpieces
US2832461A (en) * 1956-05-28 1958-04-29 Ajem Lab Inc Turret apparatus for power washing equipment
US3029929A (en) * 1955-06-06 1962-04-17 Detrex Chem Ind Apparatus for treatment with solvents
US3094576A (en) * 1958-12-03 1963-06-18 Gogan Joseph Spring quenching machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US233242A (en) * 1880-10-12 Apparatus for tempering coiled springs
US401206A (en) * 1889-04-09 Samuel t
US1008674A (en) * 1910-12-05 1911-11-14 James C Russell Treating of metal articles.
US1177846A (en) * 1914-10-19 1916-04-04 Mohr & Sons John Sterilizer and the like.
US1526513A (en) * 1921-12-15 1925-02-17 Francois Joseph Claude A Louis Process and apparatus for the thermic treatment of steels and in ceneral of all other alloys susceptible of hardening
US2787566A (en) * 1951-10-17 1957-04-02 Deutsche Edelstahlwerke Ag Process and apparatus for the inductive surface hardening of cylindrical workpieces
US3029929A (en) * 1955-06-06 1962-04-17 Detrex Chem Ind Apparatus for treatment with solvents
US2832461A (en) * 1956-05-28 1958-04-29 Ajem Lab Inc Turret apparatus for power washing equipment
US3094576A (en) * 1958-12-03 1963-06-18 Gogan Joseph Spring quenching machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4575054A (en) * 1982-02-08 1986-03-11 Kruppert Enterprises, Inc. Apparatus for quenching steel pipes
EP0089019A2 (en) * 1982-03-17 1983-09-21 Kruppert Enterprises, Inc. Method and apparatus for sequentially quenching steel pipes
EP0089019A3 (en) * 1982-03-17 1983-12-21 Kruppert Enterprises, Inc. Method and apparatus for sequentially quenching steel pipes
US20120098171A1 (en) * 2009-05-20 2012-04-26 Daniel & C. Officine Meccaniche S.P.A. Cooling tank for rails
US8858866B2 (en) * 2009-05-20 2014-10-14 Danieli & C. Officine Meccaniche S.P.A. Cooling tank for rails

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