WO2008017257A1 - Plaque de liaison incurvée et son procédé de fabrication - Google Patents

Plaque de liaison incurvée et son procédé de fabrication Download PDF

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Publication number
WO2008017257A1
WO2008017257A1 PCT/CN2007/070288 CN2007070288W WO2008017257A1 WO 2008017257 A1 WO2008017257 A1 WO 2008017257A1 CN 2007070288 W CN2007070288 W CN 2007070288W WO 2008017257 A1 WO2008017257 A1 WO 2008017257A1
Authority
WO
WIPO (PCT)
Prior art keywords
link plate
die
bended
groove
zone
Prior art date
Application number
PCT/CN2007/070288
Other languages
English (en)
Inventor
Jinkang Yuan
Zhengping Chen
Original Assignee
Hangzhou Huitong Driving Chain Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CNB2006100527570A external-priority patent/CN100418657C/zh
Priority claimed from CN 200610053209 external-priority patent/CN1911763A/zh
Application filed by Hangzhou Huitong Driving Chain Co., Ltd. filed Critical Hangzhou Huitong Driving Chain Co., Ltd.
Publication of WO2008017257A1 publication Critical patent/WO2008017257A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/02—Driving-chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21L—MAKING METAL CHAINS
    • B21L9/00—Making chains or chain links, the links being composed of two or more different parts, e.g. drive chains
    • B21L9/02—Making chains or chain links, the links being composed of two or more different parts, e.g. drive chains of roller-chain or other plate-link type
    • B21L9/04—Punching or bending the different parts of the chain links
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G15/00—Chain couplings, Shackles; Chain joints; Chain links; Chain bushes
    • F16G15/04—Quickly-detachable chain couplings; Shackles chain links with rapid junction means are classified according to the corresponding kind of chain

Definitions

  • the present invention is to provide a link plate used in a chain, especially to provide a bended link plate with resistance bar for conveyor chain, the present invention is also to provide a method to bending a flat link plate into a L-shape or V-shape link plate for a chain, especially for a transmission chain.
  • a metal plate are various used to make a link plate of all chains which articulate and slide, such as a power transmission chain used in an engine or the like , a conveyors chain used in distributing conversance.
  • a bended link plate are used in a conveyors chain for transferring heavy equipments, goods etc.
  • One way is to bend a metal plate into a bended link plate and then to punch it with two pin holes, the other way is to punch a metal plate into a link plate with one or more pin holes, and then to bend the link plate to form a bended link plate.
  • the bending press is provided with a female die secured onto the fixed apron and a punch fitted to the slide, and a workpiece subjected to bending work is disposed on the female die.
  • the male die and the slide are lowered by working means, the male die will contact with the workpiece and then move into the die so as to commence bending of the workpiece.
  • the slide is moved further downward to its lower stop position so as to complete the bending work.
  • the bending angle of the workpiece is determined by the width of the groove of the female die, and the depth of the penetration is determined not only by the lower stop position of the slide, but is also affected by the straight condition of the fixed apron and the slide, the height of the punch, the depth of the groove of the die and the deformations of the apron and the slide during bending work etc.
  • a bended link plate is used to assemble a chain serving as the conveyor chain for a bucker conveyor system.
  • a chain bucker conveyor system in particular, a single or double bucket system, has a central chain arranged in the center in relation to the buckets.
  • the flat iron- link plates have a multitude of inside flat-iron link plates that are arranged in pairs, parallel with each other, with a mutual cross rise spacing that are disposed parallel chain.
  • the flat iron- link plates are connected to each other by two chain bolts.
  • the chain also has outer bended link plates, in particular L-shaped link plates, with two holes through which the bucket are connected by two blots.
  • the bulk material to be transported is loaded in buckets by loading or charring devices.
  • the buckets can be transferred from one position to next position when two or more wheels guide the chain by pulls means.
  • the buckets are emptied either by the force of gravity or by centrifugal force, whereby the material is emptied form the buckets by the force of gravity.
  • the present invention is to provide a bended link plate with a resistance bar on a selected zone and a method to bending a metal plate, sheet or workpiece into L -shaped or V- shaped plate, especially to bending a flat link plate into L-shaped or V-shaped link plate that can be used in assembling a chain, in particular, a conveyors chain with buckets for transferring bulk material.
  • One aspect of the invention is to provide a method to producing a bended plate having these steps: (a) providing a flat link plate; (b) heating a selected zone of the link plate; (d) bending the link plate immediately after step b.
  • the “link plate” used in the claims is not limited to a particular geometric shape, the link plate can be a metal sheet, metal workpiece or metal link plate that used to assemble a chain.
  • the material of the link plat can be any type metal.
  • the flat link plate can be made of steel, iron, or alloy steel containing one or more elements that are selected form carbon, silicon, manganese, ferromanganese, manganin etc.
  • the "flat” used in the claims refers to a link plate which is not bended into a pre-design angle as to form a L-shaped or V-shaped link plate.
  • the term "a selected zone” refers to a part of the link plat and not to a whole link plate. Any part of the link plate can be surrounded by an induction coil and heated by an electromagnetism induction heater.
  • a flat plate is transferred into an electronically conductive coil, which is one part of the an electromagnetism induction heater, so as to let the coil surround a zone of the flat link plat, and then heating the selected zone of the metal plate using the electromagnetism heater for a regular time, after the step of heating, the heated metal plate is transferred immediately onto the bending dies for bending.
  • a preferred embodiment of the invention is to provide a method to make a bended link plate using a high-frequency electromagnetism induction heater to heat the selected zone on the metal link plate for 0.5 second to 30 seconds. After the heating step, the heated link plate is moved immediately onto a female die for bending the link plate to form a predetermined width v-shaped or L-shaped link plate using a male die. The time to heating the selected zone softer is determined by the materials of the link plate, the circle of the coil surrounding the link plate, the electric current applied to the coil and the frequencies generated by a high frequency inverter.
  • a preferred embodiment of the invention is to provide a method to making a L-shaped link plate using an electromagnetism heater to heat the selected zone on the metal link plate as to let the selected zone become too softer to be bended easier. After heating, transferring immediately the link plate onto a female die with a L-shaped groove, and using a male die with a corresponding L-shaped die_to press the softer zone of the link plate into the groove of the female die.
  • the other aspect of the invention is to provide a bended link plate with a resistance bar on the selected zone of the bended link plate.
  • the bended link plate has one or more resistance bars on the selected zone, which is formed by force during bending the link plate.
  • a flat link plate is transferred into a coil unite of electromagnetism induction heater, and one zone of the link plate is heated by the electromagnetism induction heater for a regular time.
  • the heated link plate is then quickly moved onto a L-shaped female die and bended using a corresponding L-shaped male die.
  • the bottom of the L-shape female die has a protuberance bar, and the male die also has a corresponding notch.
  • the L-shaped male die When the heated link plate is moved onto the L-shaped female die with the protuberance bar, the L-shaped male die is moved down to press the selected zone of the link plate that is transferred from the induction coil of the electromagnetism induction heater immediately. And the L-shaped male die is moved further downward to its lower stop position as to complete the bending work.
  • a resistance bar is formed between the protuberance bar on the bottom of the L-shaped female die and the corresponding notch on the top side of the L-shaped male die due to the pressing and force.
  • a pin that is cross the groove of the female die forms a protuberance bar. Two opposite plane of the groove have two corresponding holes and a pin can cross through the holes and lie on the bottom of the groove.
  • Two protuberance bars and two corresponding notch can be formed individually on the female die and the male die.
  • the two bars can fill the notch properly when bending and pressing through locating the proper position both on the bottom of the female die.
  • the L-shape groove of the female die can filled with the L-shaped male die properly.
  • a link plate with two resistance bars on the selected zone of the link plate which are formed on the a side shoulder of a link plate during bending.
  • a flat link plate is bended through a L-shaped female die, which has a main L-shape die and two assistance dies.
  • the main L-shaped die is fixed between the two assistance dies, and the three parts are fixed and secured onto a bed.
  • the section of the die formed by the main die and the two parts is a trapezium shaped die with two inclined panels and two parallel sides. The shorter parallel side is the bottom of the die.
  • the male die is also formed into a trapezium shaped die.
  • the male die When the heated link plate is moved onto the female die, the male die will press the heated zone of the link plate into the bottom of the female die as to complete the bending work. Since the heated zone of the link plate is pressed into the bottom of the female die by the male die, the two inclined panels of the female die and the corresponding of the two inclined panels of male die will press the heated zone of the link plate into two resistance bars on the two a side shoulders of the bended link plate.
  • the advantage of the method is to form a resistance bar on the heated zone of the link plate during bending.
  • Fig. 1 is a cutaway view of the present invention for bending the link plate 4 through the steps: (a) collecting the link plate in the collecting device 30; (b), loading the link plate into transferring device 5; (c), Using electromagnetism induction heater 81 to heat the selected zone 48 on the link plate 4 that is transferred from the device 5; (d), bending the link plate through pressing the heated zone using a male die 7 to press the selected zone into a groove of a female die 8 as to form bended link plate 4'; (E) picking up the bended link plate from the bending device using machine hand 92
  • Fig. 2 is a schematic view of the method to bending the link plate 4 into L-shaped link plate.
  • Fig. 3A-3C is a perspective view of the bending device 78.
  • the bending device 78 has a v- shaped female die 7 that securely fixed on a bed 9 and a cover 42 for covering the female die.
  • Fig. 3A is the perspective view of bending device 78;
  • Fig. 3B is the perspective view of the female die 7 that securely fixed on a bed 9;
  • Fig. 3B is the perspective view of the cover with a slot 102 and a window 422.
  • Fig. 4 is perspective view of the transferring device 5 having a slot 54 formed by two face to face panels 51,50 that are fixed on the surface of a base part 55 by screws 52 screwing through the long ellipse-shaped holes 53 both in the bed and in the panels 51,50.
  • the width of the slot 54 is formally loaded the link plate 4 coming from the collecting device 30.
  • Fig. 5 is a section view of the collecting device 3 for collecting the link plate in assembling slot.
  • the collecting device has a base part 35 and three L shaped columniations 31,32,33 are immobilized vertically on the surface of the base part.
  • Each columniation has a based part 3-4 with a hole 3-6 though which a pin 3-5 can immobilize the columniations on the surface of the base part as to forming a triangle slot.
  • the link plates 4 can be assembled into the triangle slot.
  • Fig. 6 is a plane view of the collecting device.
  • Fig. 7 is a sectional view of the electromagnetism induction heater 81.
  • Fig. 8 is the plan view of the bended link plate 11 with two resistance bars 12,13 on the heated zone 48.
  • Fig. 9 is the right side view of the bend link plate 11.
  • Fig. 10 is a plan view of the bended link plate 20 with two resistance bars 21,22 on each of the a side shoulder 23, 24.
  • Fig. 11 is the right side view of the bend link plate 20.
  • Fig. 12 is a schematic view of the bending method for forming two resistance bars during bending the link plate into a L-shaped link plate.
  • Fig. 13 is a perspective view of the bending device 88 has a cover 42 and a female die 70 for bending and pressing the link plate 4 into link plate 11 with two resistance bars.
  • Fig.13 A is a perspective view of the cover 42.
  • Fig. 3B is a perspective view of the female die 70 with two pins 721, 722 protuberated on the bottom of the groove 71.
  • Fig. 14 is a perspective view of the male die 80 for pressing the selected zone of the link plate 4 as to form the bended link plate 11.
  • Fig. 15 A, Fig. 15B and Fig. 15C are perspective views of the bending device 15 has a female die for bending and pressing the link plate 4 into link plate 20
  • Fig. 16 is the sectional view of the bending device 15
  • Fig. 17 is a sectional view of the male die for pressing the selected zone of the link plate 4 as to form the bended link plate 20 with two resistance bars on the side shoulders
  • the flat link plate can be heated using an electromagnetic induction heater, in particularly using a high frequency induction heater 81
  • the induction heater 81 has two main parts in electronic communication, electronically conductive coil 83 and a high frequency inverter 82.
  • the high frequency inverter with a senseless high is used as an alternating field on the coil 83
  • a controller controls an output of the high frequency current generator for making an alternating field on the coil 83, which includes a phase shift controlling device and a gate driver
  • the conductive coil 83 as shown in the Fig 1, Fig 2 and Fig 7, surrounds a selected zone 48, especially a small part of the link plate 4
  • the power is supplied onto the induction coil 83 and the selected zone 48 of the link plate 4 will be heated though the heat generating between the link plat and the induction coil
  • a high frequency electromagnetic heater is used to heat the selected zone of the link plate in present embodiment
  • the time of the heating can be selected freely considering the various requirements and the material of the link plate What the principle of how electromagnetic induction heater heats the metal element that is rolled around by the induction coil 83 is not the core of the present invention.
  • the induction heater used in present embodiment can be purchased from many companies, such as Shanghai Zilin Mechanical&Electrical Equipment, Inc., (its website: http://shzilin, 18show.net/Product_1443871. html) or Kenfor Mechanical&Electrical Equipment Manufactory (address: #3, Gaoerfu Road, Dalitaiping, South eare, Fushang, Guangdong, PRC. website: http ://www. kenfor . cn/cn/product/index 1. html) .
  • the induction heater used in the present invention to heat a zone of the link plate also have been described in detail and founded in these US patents, US 6,404,089 Bl, US 6,288,376 Bl, US 6, 046, 442 A, US 5, 414, 247 A, US 5,401,939 A, US 5, 350,901 A, US 5, 237, 144 A, US 7,077,993 and US 6,384,388.
  • the time for heating could be 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30 or 60 seconds flowing the different materials that are used to make the link plate.
  • the selected zone of the link plate can be heated for 2- 3.6 seconds, which can be easily bended used the bending device 78 with less force.
  • the bending procedures would be described in detail combining with the female die and male die.
  • the purpose of heating is to let the selected zone 48 of the flat link plate 4 become soft in a very short time and then it can be bended through the bending device78 easily.
  • the traditional heating method is to heating whole link plate, which need more power and time.
  • the selected zone 48 of the link plate 4 previously heated by the high frequency induction heater 81 is transferred onto the bending device 78 to be bended into a pre- design shaped link plate.
  • One embodiment of the invention is to bend the link plate 4 into an L- shaped link plate 4', as shown in the Fig. 1, Fig. 2 and Fig. 3A-3C.
  • the bending device 78 is consisted of an L-shaped female die 7 and a corresponding L-shaped male die 8 connected with a slide means, such as an air press slide system.
  • the L-shaped female die 7 has two opposite panels 71, 72 and a bottom side 73. The two panels 71, 72 and the bottom side 73 are constructed into a groove 74 with a 90° angle A.
  • the male die 8 (Fig. 14) also has the corresponding two opposite panels 71', 72' and top side 73', name as L-shaped male die.
  • the opposite panels71', 72' and top side 73' are constructed into a L-shape male die 8 with a 90° angle A'.
  • the heated flat link plate 4 is transferred onto the L-shaped female die 7, and is adjusted as to let the selected zone 48 of the link plate 4 be vertical with the bottom side 73 of the L-shaped female die 7 and vertical with the top side 73' of the male die 8 (Fig. l,Fig. 2).
  • the top side 73' of the male die 8 will contact onto the selected zone 48 and then move into the L shape groove 74 of the female die 7 so as to complete the bending work.
  • the L-shaped link plate is made with 90° angle.
  • the bending angle of the link plate is determined not only by the angle of the female die 7 and the male die 8 but also the depth of the penetration of the male die 8 that is moved into the groove 74 of the female die 7.
  • the angle A' of the male die 8 is designed as the same as that of the female dies 7.
  • the link plate can be bended into a precise angle, such as 10°, 20 °, 30 °, 40 °, 45 °, 50 °, 60 °, 70 °, 85 °, 90 °, 100 °, 120 ° or 160 °, when the angle of the male die 8 is less than that of the female die 8.
  • the link plate should be bended into a 60° link plate
  • the female die also is a 60° die and the male die should be 55° or 59° die considering the thickness of the link plate 4. Since the heater 81 previously has heated the selected zone 48 of the flat link plate, the link plate is easier bended by the male die 8 due to the softness of the selected zone.
  • the link plate could be bended precisely into any angle link plate as various requirements, such as 10 °, 15 °, 20 °, 25 °, 30° °, 35 °, 40 °, 45 °, 60 °, 80 ° or 90 °.
  • the bending device 78 further has a bed 9 on which the female die 7 can be fixed through various means known by the skilled persons in this art.
  • One method of fixing the female die 7 on the bed 9 is to use screws to connect with corresponding holes in the female die 7 and the bed 9(not shown).
  • Another method is to use a model through molding the female die and the bed 9 as a whole part. Since the female die is stable, a precise angel of the link plate can be formed.
  • the bending device 78 further has a cover 42 with four pin holes 121,122,123,124 through which four pins, bolt or screws 121', 122', 123', 124' immobilize the cover on an base or platform (not shown), illustrated by the reference Fig. 3 A to Fig. 3C.
  • the cover 42 has a slot 102 with a width W and depth D corresponding to the width W and the high H of the bed 9. The bed 9 with the female die 7 thereon can be inserted into the slot 102 as to let the bed 7 more stable during bending process.
  • the cover 42 also has a window 422 whose width is corresponding with the width of the groove 74 of the female die 7.
  • the female die 7 can be replaced for other angle female die freely if need.
  • the 90 ° L-shaped link plate can be bended sequence by replacing the 30 ° female die for 90 ° L-shaped female die through inserting the bed with the 90° female die into the slot 102 of the cover 42.
  • the heated link plate transferred immediately from the electromagnetism heater is then transferred to the window 422of the bending device 78 as to let the heated zone of the link plate face to or be opposite to the male die.
  • the male die 8 is derived down to press the heated zone of the link plate and bends the link plate into the "L" shape through the "L” shape female die. Since, the female die is more stable and will not shake during the bending; the link plate is very easily bended to an "L" shape with a precise angle or design shape with difference die.
  • the conventional method for bending the link plate has these steps: (a) putting the link plate into a specially box, and then the box is covered or packaged by fireclay; (b) putting the box covered by the fireclay into a furnace with the pre-determined temperature, for example, 1200 degrees for link plate made of steel for at least 4 hours for heating; (c) when the heating step is finished, the temperature in the furnace will be cooled naturally until to the room temperature; (d) taking the box out of the furnace and taking the link plate out of the box ; (e) clearing the surface of the link plate as to shave the oxidation layer.
  • This heating procedure has these shortcomings: 1.
  • the methanol or nitrogen gas used in the furnace as the protection gas to protect carbon losing will produce danger gas happening with other reagents in the furnace during the heating, which contaminated environment and are harm to human.
  • the bending procedure is always applied to the link plate when the temperature of the link plate is reduced naturally to room temperature. Therefore, all most of the link plate bended through the method described in the prior art are easier cracked, or formed crevices or interstices, especially on the bended zone.
  • the outer link plate is easier be broken during transferring heavy equipments.
  • the embodiment of the present invention is to provide a bended link plate, one part of which is heated by a heater just for short time and then moved onto the bending device to be bended into a link plate with a pre-design angle. Crevices or interstices will not be formed during bending the link plate using the method described before in these embodiments of present invention.
  • the traditional bended link plate without resistance bar will be easier broken when it is used in the chain, in particular in a conveyor chain system with buckets, for transferring weightily goods or article which are put or laid in the buckets that are connected with the bended link plate. Furthermore, the angle of the bended link plate through bending will be increased, for example, from 90 ° to 120 or 60° when the link plate is to support heavy buckets for a long time.
  • the method of forming two resistance bars on the link plate 4 is described below in detail.
  • the selected zone of the link plate 4 is heated used the electromagnetism heater 81 that is described before in this invention.
  • the female die 70 has a groove 71 having two opposite panels 711, 712 that are formed a 90° angle. Two protuberant bars are crossed the two panels and posited near to the bottom of the groove. There are many ways to form two protuberant bars in the groove of the female die.
  • each opposite panels 711, 712 of the groove 71 has two holes 723,724(723', 724') through which two steel pins 721,722 are across and protuberated on the bottom of the groove 71.
  • the two steel pins can be replaced for other pins when they are destroyed due to using for a long time for bending.
  • the male die 80 has two notches 81, 82.
  • the distance between the two protuberant bars 721,722 is the same as that of the two notches 81, 82 cut on the male die 80.
  • the diameter of the bars in the groove of the female die is the same as the inside diameter of the notches 81, 82.
  • the male die 80 When the heated link plat is moved on to the female die 70, the male die 80 is derived down to contact onto the heated zone of the link plate and derived down into the groove of the female die to complete the bending work.
  • the resistance bars are formed by force between the protuberant bars in the groove of the female die and the notches on the male die during the bending.
  • the L-shaped link plate with two resistance bars is formed. Because the heated zone of the link plate is very softer than other zone, the zone is very easier to press and formed two resistance bars thereon at the same time when bending the link plate into a bended link plate with a pre-design angle using the female die and the male die.
  • the female die 70 is secured on a bed 9 and a cover 42 with a window 422 and a slot 102 therein.
  • the bed with the female die is inserted in the slot as to make the groove of the female die is located in the corresponding under the window on the cover.
  • Such arrangements can let female die be stable when using the male die to press and bend the link plate into L-shaped link plate and with a resistance bar thereon.
  • the two resistance bars 21, 22 are formed on the a side shoulders 23, 24 of the bended a link plate 20 that is bended from the link plate 4, as reference Fig. 10, Fig. 11.
  • the female die 15 is consisted of three parts, main die 151 and two assistant dies 152,153.
  • the main die 151 is fixed between the two assistant dies as to form a trapezium shaped groove 154.
  • the main die and the assistant die also can be immobilized on the bed 155,156,157.
  • the bed with the main die and the assistance dies also can be inserted into a slot of a cover that fixed on a base or platform (not shown)
  • the male die 89 has the trapezium shaped die corresponding with the female die.
  • the male die is derived down to contact onto the heated zone of the link plate.
  • the heated zone is pressed and bended by the male die into the bottom of the female die. Since the groove of the female die is a trapezium shape, the male die can press the heated zone on the two incline planes 157,158 of the trapezium of the female die as to form two resistance bars on the two a side shoulders of the link plate.
  • any number of the resistance bar can be pressed when pressing the heated zone of the link plate into the groove of the female die.
  • the bar could be any position relating the two panels of the bended link plate.
  • the link plate can also be bended into any angle link plate with the resistance bar on the heated zone.
  • the bended link plate is to used to assemble any chain, in particular, a flexible chain for conveyor chain for bucket conveyor system.
  • the bended link plate can be used to assemble chain as outer link plate described in US patent No. 6,615,974.
  • Chain 1 is connected, in a fixed manner, with each bucket 2 by means of two substantially L-shaped fastening angles, which are formed by the outer link plates 9 and 10 of chain 1.
  • the L-shaped link plate of the present invention can be used as the outer link plates described in 6,615,974 to assemble a flexible chain.
  • the link plate 4 can be automatically transferred into the electromagnetic induction heater from a transferred device 5.
  • the transferring device 5 comprises the base part 55 for supporting two face-to-face panels 51, 52 thereon that defines a slot 54 on the surface of the base part 55.
  • the width of the slot is same as the T shaped link plate 4.
  • Each of the panel 51,52 has two long elliptical holes 53,56,57,58 and the base part 55 also has four long elliptical holes (not shown) correspondingly, through which four screws or bolts 5-1, 5- 2, 5-3, 5-4 can immobile the two panels 51, 52 parallel on the surface of the base part 5-5.
  • the transferring device 5 also has a pusher staff 2 of which one end is pushed by an auto-pusher 1 in a regular frequency, for example 10-80 time/minutes, and another end of the staff is to pusher the link plate 4 along the slot 5-4 into the induction coil 83 of the electromagnetism induction heater 81 for heating for a short time.
  • a pusher staff 2 of which one end is pushed by an auto-pusher 1 in a regular frequency, for example 10-80 time/minutes, and another end of the staff is to pusher the link plate 4 along the slot 5-4 into the induction coil 83 of the electromagnetism induction heater 81 for heating for a short time.
  • a collection device 30 that can automatically provide the link plate 4 in succession for transferring by the transferring device 5.
  • the collecting device has a base part 35 and three L shaped columniations 31,32,33 are immobilized vertically on the surface of the base part.
  • Each columniation has a based foot 3-4 with a hole 3-6 though which a pin 3-5 can immobilize the columniations on the surface of the base part as to forming a triangle slot.
  • the link plates 4 can be assembled into the triangle slot.
  • the link plate 4 can be auto provided for the transferring device for making a bended link plate in line.
  • Example 1 bending a link plate into 90-L-shape link plate with two resistance bars
  • a link plate 4 is made from 40 Mn medium - carbon steel.
  • the electronic induction heater 81 is purchased form Shanghai Zilin Mechanical&Electrical Equipment, Inc., (its website: http://shzilin, 18show.net/Product_1443871.html) (the type is DL- 15A) has two coils having 3mm diameter electrical wire ( ⁇ 3mm).
  • the average compressive strength of the link plate is 45890N, while the bended link plate that are made by traditional method just has 18780N. It is clear that the resistance strength of the link plate that made by this example is increased about 2.5 times and more comparing with the prior art bended link plate.

Abstract

La présente invention concerne une plaque de liaison incurvée ; un procédé pour incurver la plaque de liaison qui est utilisée pour assembler une chaîne, en particulier une chaîne de transmission de puissance. L'invention concerne une plaque de liaison ayant une zone d'incurvation à travers laquelle deux côtés sont reliés pour former un angle entre les deux côtés, telle une plaque de liaison en forme de 'v' ou de 'L', la zone d'incurvation étant chauffée par un inducteur électronique pendant un court laps de temps, et étant ensuite incurvée par un dispositif d'incurvation. La plaque de liaison incurvée a également une barre de résistance de manière à prolonger la durée d'utilisation de la plaque de liaison incurvée, qui est formée pendant le processus d'incurvation pour incurver la plaque de liaison. L'utilisation du procédé de la présente invention permet d'incurver la plaque de liaison en un temps très court contaminant moins ou ne contaminant aucun environnement.
PCT/CN2007/070288 2006-08-02 2007-07-12 Plaque de liaison incurvée et son procédé de fabrication WO2008017257A1 (fr)

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CN200610052757.0 2006-08-02
CNB2006100527570A CN100418657C (zh) 2006-08-02 2006-08-02 链板片加工工艺
CN 200610053209 CN1911763A (zh) 2006-08-25 2006-08-25 折弯输送链板及用于生产该链板的方法和设备
CN200610053209.X 2006-08-25

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US8623155B2 (en) 2004-05-21 2014-01-07 Ati Properties, Inc. Metastable beta-titanium alloys and methods of processing the same by direct aging
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US10144999B2 (en) 2010-07-19 2018-12-04 Ati Properties Llc Processing of alpha/beta titanium alloys
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US10513755B2 (en) 2010-09-23 2019-12-24 Ati Properties Llc High strength alpha/beta titanium alloy fasteners and fastener stock
US8652400B2 (en) 2011-06-01 2014-02-18 Ati Properties, Inc. Thermo-mechanical processing of nickel-base alloys
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US9050647B2 (en) 2013-03-15 2015-06-09 Ati Properties, Inc. Split-pass open-die forging for hard-to-forge, strain-path sensitive titanium-base and nickel-base alloys
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