CN1012582B - Method of clamping rails for pressure welding same and clamping apparatus therefore - Google Patents
Method of clamping rails for pressure welding same and clamping apparatus thereforeInfo
- Publication number
- CN1012582B CN1012582B CN 87101709 CN87101709A CN1012582B CN 1012582 B CN1012582 B CN 1012582B CN 87101709 CN87101709 CN 87101709 CN 87101709 A CN87101709 A CN 87101709A CN 1012582 B CN1012582 B CN 1012582B
- Authority
- CN
- China
- Prior art keywords
- rail
- clamping
- web
- clamping device
- soffit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Abstract
When forcing together the mating end faces of a pair of rails into contact and pressure welding the rails, the clamping operation of each rails end is effected by dividing it into a vertical positioning clamping and a lateral positioning clamping performed independently of the former. With the contacting end faces being interposed, each of the two rail ends is first forced upward at the chins of each rail below the head thereof to press the upper surface of each rail against the lower surface of a leveler which establishes a preliminarily adjusted reference level. Then, each of the rail ends is clamped by a pair of clamping means which are pressed against the sides of the web of the rail from both sides. At this time, one of the clamping means pressed against one side of the rail web forces the rail web to a preliminarily adjusted reference position with a relatively strong force and the other clamping means pressed against the other side of the web forces the web in the opposing direction with a weaker force.
Description
The present invention relates to a kind ofly when the end face of a pair of rail is done the pressurization welding,, and realize the chucking device that this kind method is used the method for rail by correct relative position relation clamping.
On a pair of rail end face with pressure bonding access the connection status of joint, if any laterally offset appears in joint, or the connection status that changes or the like of the straightening of the height of the upper surface of joint and joint, can influence the ride comfort sense of Steel rail vehicle greatly, operation stability, peak of noise or the like, the especially rail joint of the hot-short operation accuracy of having relatively high expectations.This shortcoming of rail joint, be because railway itself has the problem of the accuracy of manufacture, or there is the rail folder before the pressurization welding to decide precision problem, so rail to be connect must be eliminated the accuracy of manufacture problem of rail, by the correct relative relation, correctly join end to end, especially before welding, eliminate the bending change of rail.
With the method and apparatus of rail clamping, one for example Japanese patent laid-open publication gazette 56-136292 number discloses this type before a pair of rail pressure bonding, this patent awarded people and the application's case with.But, because this traditional clamp method and equipment, use a system, with single hydraulic cylinder group, pass through linkage, the folder of a pair of rail being made simultaneously vertical direction and side direction is fixed, decide in the process at folder, after rail being done the adjusting of opposing vertical position and lateral position, must handle the adjusting operation of oil cylinder group, especially lateral position, require the operator to climb to below the press welder, replacing is fixed by bolts to a pair of folder jaw on the clamping device, or inserts and regulate the adjusting that pad is made lateral position.Because determining the action need of straightening between this operation and the two rails repeats repeatedly, usually need about ten minutes more than owing to correctly folder is fixed in a straight line with two rails, again because pressurization welding subsequently itself only needs a few minutes, so disadvantage is the time of almost all handling, and has all consumed on the position adjustments of rail.
Disclose a kind of rail welding device in U.S. Pat 3802348, the keeper of a side of its rail side direction clamper is fixed, rail utilize cylinder barrel by cam on opposite side by the backup fixed positioning piece.But, in this device, when cam from its starting position when contacting with rail, the horizontal amount of movement of this device is very big.
One object of the present invention is clamp method and the equipment that proposes a kind of rail, and purpose of design is to overcome the above-mentioned defective that has earlier in the skill field, particularly can simply promptly carry out the calibrating operation of the vertical relatively and lateral position of a pair of rail.
According to the present invention, why above-mentioned purpose can obtain, and is the clamping with each rail, is divided into mutually independently perpendicular positioning clamping and two steps of lateral register clamping.
Particularly, according to an aspect of the inventive method, when two contact jaws are faced timing, the two rails end is at first located in vertical plane, the soffit of two rail head portions to pop-up, is made the soffit of the upper surface of rail head against leveller, and leveller provides preregulated reference levels.Use the both sides of a pair of clamping device clamping web of the rail on two rail ends then, method of clamping is in two clamping devices, one side of the contact web of the rail, with stronger power the web of the rail is shifted onto on the preregulated reference position, the opposite side of another clamping device contact web of the rail uses more weak power to web of the rail reinforcing in the opposite direction.
The alignment in vertical direction of the method according to this invention, rail can done before the clamping, and the reference altitude by each the leveller soffit that is adjusted in each rail end is determined reaches requirement alignment precision.And, before doing clamping, regulate by the reference position that the stroke end of the clamping device on each rail end is determined, just can similarly be adjusted to permissible accuracy to the side direction alignment of rail.
Be used for realizing that the equipment of the inventive method has a pair of chuck, in order to a pair of rail of clamping, the contact end face of rail is relative, two chucks corresponding to rail vertically on, only can to a direction mutually near or leave.Each chuck has a leveller, its soffit is determined the reference altitude in the vertical direction, hydraulic means is used to contact rail head both sides soffit, rail is upwards lifted, first clamping device is used for the side against the rail waist, the web of the rail is shifted onto the stroke end of preset, just on the reference position, second clamping device is used for the opposite side against the web of the rail, with more weak power the web of the rail is pushed to first clamping device.Preferably make the soffit of leveller,, can do some slips, thereby make rail can do a spot of side direction activity with respect to rail with the part that contacts the rail head soffit of hydraulic means, and do not cause hydraulic means on the power of lifting significantly decrease.On the other hand, the front end of first and second clamping device still can clamp the web of the rail and not let alone to slide in the centre.In a kind of desirable form, each clamping device has a hydraulic cylinder group and is installed in clamping jaw on the hydraulic cylinder group piston rod front end.The hydraulic cylinder group of first clamping device has position, adjustable stroke end, for accomplishing this point, for example, makes the type that the hydraulic cylinder group adopts fixed journey system length, and its position can be regulated.
Above-mentioned and other purposes of the present invention, characteristics and advantage are read hereinafter about the narration of desirable embodiment with reference to accompanying drawing, just can understand more, and narration only there is no the restriction meaning as an example.
Fig. 1 is the lateral view of the rail clamping device of one embodiment of the invention.
Fig. 2 is the sectional view of observing along Fig. 1 center line II-II direction.
Fig. 3 is the sectional view along Fig. 1 center line III-III.
The rail clamping device of one embodiment of the invention represented in Fig. 1 to 3 summary.In the accompanying drawings, be placed with a pair of rail 5a and 5b, its end face is contacted, an opposite house clevis head 1a and a 1b arranged, they have essentially identical structure, are installed in rail 5a and 5b top respectively, its end of clamping.Chuck 1a activity, another chuck 1b is then fixing.Fixed chuck 1b is fixedly mounted in some guide rods 2 on the end of each, guide rod 2 by rail vertically on guiding, the other end of each guide rod 2 is installed on support body 3.Active chuck 1a is being installed on the guide rod 2 between fixed chuck 1b and the support body 3, can be directed and move, for doing pressure bonding, an available hydraulic cylinder group 4 that is installed on the support body 3, with active chuck 1a and fixed chuck 1b near or leave.Label 6a and 6b represent suspender, are used for whole clamping device is sling with crane.
Chuck 1a and 1b have essentially identical structure, therefore only chuck 1a are described herein to get final product.
Chuck 1a has a mechanism of locating 20 in vertical direction, pattern has lateral register clamping device 30 as shown in Figure 2, and pattern as shown in Figure 3.Paired lateral register clamping device 30 and vertical direction detent mechanism 20 rail vertically on a line arrange, perpendicular positioning mechanism 20 is configured in addition between the two, as shown in Figure 1.
As shown in Figure 2, a leveller 21 is arranged in the perpendicular positioning mechanism 20, be installed on the soffit mid point in chuck 1a door shape space 7, can do the adjusting of upright position, lifting rocking bar 22a and 22b are arranged, be installed on the avris in shape space 7 and rotate, and have hydraulic cylinder group 23a and 23b respectively rocking bar 22a and 22b symmetry to be rotated. Rocking bar 22a and 22b make it rotation by the overhanging activity of the piston rod of hydraulic cylinder group 23a and 23b, therefore the soffit of rail head 5a lifted from bottom to top, and the soffit of the upper surface of rail 5a against leveller 21.In this case, the soffit of leveller 21 is the surface that discord rail upper surface causes bigger friction preferably, and rocking bar 22a that contacts with the rail head soffit and the part of 22b are preferably formed as low-friction surface, make it to do some slips with respect to rail.
As shown in Figure 3, each in the lateral register clamping device 30 has pair of hydraulic cylinders group 31a and 31b, is installed in the both sides in the door shape space 7 of chuck 1a, and clamping jaw 32a and 32b are installed on the piston rod front end of hydraulic cylinder group 31a and 31b.The web of the rail of plate 32a and 32b clamping rail 5a, end face can not slide on web of the rail side, thereby rail is clamped.The output that hydraulic cylinder group 31a produces is exemplified as 40 * 10
3Kgf/cm
2, jaw 32a determines the side direction reference position of rail at the terminal point that stretches out stroke of hydraulic cylinder group 31a.In order to regulate this reference position, 31a is fixed on the chuck 1a with the hydraulic jack group, so that adjusting position.Another hydraulic jack group 31b produces lower output, and for example 35 * 10
3Kgf/cm
2In the embodiment of giving an example, hydraulic jack group 31a and 31b are installed in respectively among the oil cylinder that is formed among chuck 1a cave 33a for sleeping in and the 33b, and be then that its tail end bead is fastening with bolt 34a and 34b.The position of hydraulic jack group 31a can be regulated, and for example does bead at the bolt 34a that chuck 1a tightens with tap bolt, and that regulates these bolts is screwed into the just adjustable fuel-economizing cylinder position of length.
Then, utilize the clamping device that above-mentioned structure is arranged, the clamping process of the rail of the welding of waiting to pressurize just can be undertaken by following.At first, the leveller 21 of chuck 1a and 1b is transferred to equal height, and regulates bolt 34a, the position, stroke end with the hydraulic jack group 31a that sets up chuck 1a and 1b aligns the front position of the jaw 32a of chuck 1a and 1b.
Chuck 1a and 1b install in the above, on the end of rail 5a and 5b, the both ends of the surface of rail contacts, thus at chuck 1a and 1b(Fig. 1) end face between, form a joint 5c.Then, the oil cylinder group 23a of the perpendicular positioning mechanism 20 of two chuck 1a and 1b and 23b elongation, rotating rocker 22a and 22b, the front end of rocking bar is upwards lifted from following head soffit rail 5a and 5b, the upper surface of rail 5a and 5b is just against corresponding leveller 21(Fig. 2).So just, rail 5a and the straightening of 5b in vertical direction have been guaranteed.
After keeping this impaction state, all extend at the two couples of hydraulic jack 31a and the 31b of each the chuck 1a of each rail both sides and 1b, the web of the rail of each rail is clamped in both sides by jaw 32a and 32b.Because the output of the hydraulic cylinder group 31a of rail one side, greater than the output of other side hydraulic cylinder group 31b, oil cylinder 31a just is elongated to the stroke end, and the web surface of rail one side is put on the reference position.So just, guaranteed the side direction straightening of two rails, at opposite side rail has been made fluid power with oil cylinder 31b simultaneously and clamp.In this case, if the output of oil cylinder group 31a and 31b is described for example as mentioned, then chucking power becomes 35 * 10
3Kgf/cm
2If between rail 5a in or another chuck 1a and 1b and the lateral position of 5b any variation is arranged, convenient position with bolt 34a fine setting hydraulic cylinder group 31a.This fine setting can be carried out in a side of rail with the short time easily.In practical operation, be easy to rail is done any fine setting, therefore, the number of adjusting time and adjusting item is more a lot of than reduce in the past.Below list in conventional method and the inventive method in the table 1, obtain the rail clamping of straightening and operate the needed adjusting time, regulate the number of item, and correction time.As seen from the table, purport is used method of the present invention surely, reduces to 1/5th of conventional method correction time approximately, aspect the raising behaviour efficient very big effect is being arranged.
The rail side direction is proofreaied and correct and is taken comparison in table 1. conventional method and the inventive method
Conventional method the inventive method
The adjusting time (minute/item) 5-10 2-3
Regulate item number 2-3 1-2
Correction time (minute) 10-30 2-6
Claims (6)
1, a kind of with a pair of rail by correct relative position relation clamping so that the method for this two rails end face of pressurization welding, this method comprises the steps:
Utilize hydraulic means that the end of this two rails is located in vertical direction, this two contact jaw is just being faced;
With a pair of clamping device clamping, this two clamping device utilizes the both sides of independent actuator assembly from each this rail of sandwich respectively with the end of this two rail,
In this above-mentioned first step,, the end of each this rail is upwards lifted, the soffit of the upper surface of each this rail against the leveller of a definite preset reference altitude at the soffit of rail head;
In this above-mentioned second step, utilize this to one power in the clamping device, with the stronger side of pressing this web of the rail of trying hard to recommend, the web of the rail of each this rail is pushed on the preset reference position, and utilize this simultaneously to another the power in the clamping device, with the more weak opposite side of pressing this web of the rail of trying hard to recommend, this web of the rail is pushed to rightabout.
2, a kind of when the end face of a pair of rail of pressurization welding, be used for equipment that rail is carried out clamping by correct relativeness, include in this equipment:
A pair of chuck, one of them, rail vertically on only can by a direction and another chuck near or away from, this chuck is used for the end of this rail of clamping, this two contact jaw is being in the face of just,
Each above-mentioned chuck has a leveller, determine the reference altitude of vertical direction with its soffit, there is hydraulic means to be used for against the soffit of this rail's end portion, this rail is upwards lifted, first clamping device with first actuator assembly, can be driven by front and back, side in when reach against this rail waist, this web of the rail is shifted onto a pre-reference position, stroke end of setting up to get on, second clamping device with second actuator assembly can be driven by front and back, when moving forward, it, this web of the rail is pushed to this first clamping device with a more weak power against the opposite side of this web of the rail.
3, equipment according to claim 2, the soffit that it is characterized in that this leveller, part with this hydraulic means that contacts with this rail head soffit, can be slightly with respect to the slip of this rail, make it to do a little side direction activity, and extremely do not reduce the lifting power of this hydraulic means, each this first and second clamping device has the front-end architecture device, be used to grip the web of the rail of this rail, do not make slip.
4, equipment according to claim 2 is characterized in that having a plurality of hydraulic cylinder devices in this first and second clamping device, and its a plurality of clamping jaws are installed on the piston rod front end of this hydraulic cylinder device.
5, equipment according to claim 4 is characterized in that forming each of this a plurality of hydraulic cylinder devices of this first clamping device, and adjustable position, stroke end is all arranged.
6, equipment according to claim 5 is characterized in that forming each of this a plurality of hydraulic cylinder devices of this first clamping device, and a hydraulic cylinder group is respectively arranged, and the hydraulic cylinder group has fixing haul distance, and mounting means makes it adjustable position.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4607486 | 1986-03-05 | ||
| JP46074/86 | 1986-03-05 | ||
| JP61264079A JPS63119232A (en) | 1986-11-07 | 1986-11-07 | Exposure device |
| JP264079/86 | 1986-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87101709A CN87101709A (en) | 1987-09-16 |
| CN1012582B true CN1012582B (en) | 1991-05-08 |
Family
ID=26386192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87101709 Expired CN1012582B (en) | 1986-03-05 | 1987-03-02 | Method of clamping rails for pressure welding same and clamping apparatus therefore |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1012582B (en) |
| CA (1) | CA1261363A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971695A (en) * | 2008-03-12 | 2011-02-09 | 切梅特朗-铁路产品公司 | In-track rail welding system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT507560B1 (en) * | 2008-12-03 | 2010-06-15 | Plasser Bahnbaumasch Franz | WELDING UNIT FOR WELDING RAILS |
| AT515525B1 (en) * | 2014-07-28 | 2015-10-15 | Plasser & Theurer Export Von Bahnbaumaschinen Gmbh | welding unit |
| GB2551394B (en) | 2016-06-17 | 2020-09-09 | Mirage Ltd | Railway rail induction-welding device |
| GB2583681B (en) * | 2016-06-17 | 2021-03-10 | Mirage Ltd | Railway rail induction-welding device |
| CN110172881B (en) * | 2019-07-08 | 2024-05-03 | 中铁宝桥集团有限公司 | Steel rail gluing and aligning clamping device |
-
1987
- 1987-02-23 CA CA000530351A patent/CA1261363A/en not_active Expired
- 1987-03-02 CN CN 87101709 patent/CN1012582B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971695A (en) * | 2008-03-12 | 2011-02-09 | 切梅特朗-铁路产品公司 | In-track rail welding system |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1261363A (en) | 1989-09-26 |
| CN87101709A (en) | 1987-09-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |