CN102632184A - Method for forging roller for crawler excavator - Google Patents

Method for forging roller for crawler excavator Download PDF

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Publication number
CN102632184A
CN102632184A CN2012101191558A CN201210119155A CN102632184A CN 102632184 A CN102632184 A CN 102632184A CN 2012101191558 A CN2012101191558 A CN 2012101191558A CN 201210119155 A CN201210119155 A CN 201210119155A CN 102632184 A CN102632184 A CN 102632184A
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Prior art keywords
forging
finish
roller
die
finished
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CN2012101191558A
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CN102632184B (en
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陆友荣
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SHANGHAI YUNLIANG ENTERPRISE DEVELOPMENT Co Ltd
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SHANGHAI YUNLIANG ENTERPRISE DEVELOPMENT Co Ltd
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Priority to CN201210119155.8A priority Critical patent/CN102632184B/en
Publication of CN102632184A publication Critical patent/CN102632184A/en
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Abstract

The invention provides a method for forging a roller for a crawler excavator. The method comprises the following steps of: firstly heating a blank bar; secondly forging the upper half part of the roller through an initial forging die; thirdly, forming the lower half part of the roller through a final forging die, namely forging the two parts of the roller respectively by means of two sleeved dies, wherein the forged rollers have the same central axis and do not need to be welded. Besides, the method is capable of ensuring full filling of a forge piece and also capable of effectively avoiding the deformation failure of the die.

Description

Crawler-mounted excavator is with the forging method of roller
Technical field
The present invention relates to a kind of forging method that has the crawler-mounted excavator of flange flange with roller.
Background technology
Roller forging on the crawler-mounted excavator is a kind of forging of high complex-shaped coefficient, and is as shown in Figure 1, and it comprises the first half 11 and Lower Half 12 two parts, and the first half 11 all has flange flange 111 with Lower Half 12; 112,121,122, traditional forging mode is that two parts are separately all forged into shape shown in Figure 2; Machining is fallen unnecessary part at the B place then, forms flange flange 111,112; 121,122, at last the two parts after the machining are welded as a whole; As shown in Figure 1, during welding, be at mounting center wheel hub 6 places; Two parts forging 11,12 processes intermeshing ligule respectively, reserves the chamfering of welding usefulness at A place, ligule position; Be welded at last; The shortcoming of this forging method is the forging high material consumption, and follow-up machine-finish allowance is big, the machined duration.Also have and adopt to roll over that the ring mode forges, roll over that ring rolling is made because the requirement of milling ring technological process, need first open die forging to produce the flange of rolling over out profile behind the annular element again.
Fig. 3 is the mould sketch map of two half modules that adopts the roller forging of common closed-die forging method solid forging; After using special simulation softward that forging process is simulated; It is full that discovery is difficult to filling at the C position of Fig. 3; And the mould D of two half modules is in the forging process and can receives very big resistance of deformation, and wearing and tearing will be very serious like this, and two half module moulds will soon lose efficacy.
Summary of the invention
The technical problem that the present invention will solve is to provide the forging method of a kind of crawler-mounted excavator with roller, and this method can be come out two parts solid forging that roller all has a flange flange, reduces operation, cost-effective purpose thereby reach.
In order to solve the problems of the technologies described above, crawler-mounted excavator provided by the invention is with the forging method of roller, and said roller comprises the first half and Lower Half two parts, and the said first half and Lower Half all have two flange flanges, may further comprise the steps:
1) heating blank bar;
2) through the first half of first forging die forging roller, obtain the semi-finished product forging;
3) the semi-finished product forging is carried out the demoulding;
The Lower Half of 4) the semi-finished product forging being forged roller through finisher obtains the finished product forging;
5) to the demoulding of finished product forging.
Preferably, step 2) in, said forging die just comprises just to be forged counterdie, just forges half module at the beginning of forging patrix, the shaping first half two; Forge the first forging matched moulds die cavity and the first half profile that form behind the half module matched moulds at the beginning of said two and be complementary, the said counterdie of just forging has the upper impression and the lower impressions of connection, and the profile at the beginning of two behind the forging half module matched moulds and the shape of said upper impression are complementary; The shape of said lower impressions and the profile of bar are complementary; During shaping, earlier bar is put into lower impressions, put into upper impression with forging half module at the beginning of two again; Drift through first forging patrix applies effect downwards; Make bar be extruded said just the forging in the matched moulds die cavity, the said first half that is shaped promptly obtains the semi-finished product forging.
Further; In the step 3); Be provided with in the said lower impressions and just forge die pad, said bottom of just forging counterdie is provided with just forges jogger hole, and the push rod that is provided with on the lathe stretches into the said jogger hole of just forging will just forge die pad jack-up; Forge half module at the beginning of making the semi-finished product forging be inconjunction with two and eject, eject and forge the half module branch at the beginning of back two and come and realize the demoulding of semi-finished product forging.
Further, in the step 4), said finisher comprises two finish-forging half modules of finish-forging counterdie, finish-forging patrix, the said Lower Half that is shaped; The finish-forging matched moulds die cavity that forms behind said two finish-forging half module matched moulds is corresponding with the profile of said roller, said finish-forging counterdie have with said two finish-forging half module matched moulds after the mold cavity that is complementary of profile, be provided with the finish-forging die pad in the said mold cavity; The bottom of said finish-forging counterdie is provided with the finish-forging jogger hole; During shaping, the push rod that is provided with on the lathe stretch into said finish-forging jogger hole with finish-forging die pad jack-up to flushing with the last end face of finish-forging counterdie, place die-cushion then on the finish-forging die pad; Again the semi-finished product forging that obtains in the step 3) is spun upside down; The good first half is positioned over down on the die-cushion down to make shaping, and said die-cushion down can form concavo-convex the cooperation with the axis hole of the first half of roller, is full of the lower space of said finish-forging matched moulds die cavity after the concavo-convex cooperation; Again two finish-forging half modules being embraced the semi-finished product forging places on the said finish-forging die pad with following die-cushion; Said then push rod slowly descends and slowly drops to the mold cavity bottom of finish-forging counterdie until the finish-forging die pad, and the drift through the finish-forging patrix applies effect downwards at last, makes bar be extruded at the upper space of said finish-forging matched moulds die cavity; The Lower Half of profile roll promptly obtains the finished product forging.
Further, the up big and down small tapering that has of the mold cavity of said finish-forging counterdie.
Further; In the step 5); Said push rod stretches into said finish-forging jogger hole finish-forging die pad jack-up is extremely flushed with the last end face of finish-forging counterdie; Make to forge good roller, two finish-forging half modules and following die-cushion and eject together, eject back two finish-forging half modules, time die-cushion all comes with the roller branch and is embodied as the demoulding of article forging.
Crawler-mounted excavator of the present invention is with the forging method of roller; Adopt two cover matched moulds moulds to forge two parts of roller respectively; The roller that forges has same central axis and need not welding, and this method can guarantee that the forging filling is full, can effectively avoid the deformation failure of mould again.
Description of drawings
Fig. 1 be in the prior art crawler-mounted excavator with the structural representation of roller.
Fig. 2 is the wherein a part of structural representation of processing roller shown in Figure 1.
Fig. 3 is the mould sketch map of closed-die forging roller forging in the prior art.
Fig. 4 is the structural representation of first forging die among the present invention.
Fig. 5 is the structural representation of semi-finished product forging among the present invention.
Fig. 6 is the structural representation of finisher among the present invention.
Fig. 7 is the structural representation of finished product forging among the present invention.
The specific embodiment
Below in conjunction with accompanying drawing scheme of the present invention is further specified.
In the forging method of crawler-mounted excavator of the present invention with roller, as shown in Figure 7, roller 1 comprises the first half 11 and Lower Half 12 two parts; The first half 11 all has two flange flanges 111,112,121 with Lower Half 12; 122; Roller forging method of the present invention has saved the welding sequence after forging respectively, may further comprise the steps:
1) heating blank bar;
2) as shown in Figure 4, the first half 11 through first forging die 3 forging rollers obtains the semi-finished product forging;
3) the semi-finished product forging is carried out the demoulding;
4) as shown in Figure 6, the semi-finished product forging through the Lower Half 12 that finisher 4 forges roller, is obtained the finished product forging;
5) to the demoulding of finished product forging.
Wherein, as shown in Figure 4, in step 2) in the first forging die that uses comprise and just forge counterdie 31, just forge half module 33,34 at the beginning of forging patrix 32, the shaping first half two; Just forge on the patrix 32 and have drift, forge the first forging matched moulds die cavity 35 that forms behind half module 33,34 matched moulds at the beginning of two to be complementary with the first half 11 profiles; Just forge counterdie 31 and have the upper impression and the lower impressions of connection, profile and the shape of upper impression of forging at the beginning of two behind half module 33,34 matched moulds are complementary; The shape of lower impressions and the profile of bar are complementary, and during shaping, earlier bar are put into lower impressions; Put into upper impression with forging half module 33,34 at the beginning of two again, the drift through first forging patrix 32 applies effect downwards; Make bar be extruded for 35 li at the first matched moulds die cavity of forging, the shaping first half 11 promptly obtains semi-finished product forging as shown in Figure 5.As shown in Figure 4, be provided with in the lower impressions and just forge die pad 36, the bottom of just forging counterdie 31 is provided with just forges jogger hole 37; The push rod that is provided with on the lathe stretches into just to be forged jogger hole 37 and will just forge die pad 36 jack-up, forges half module 33,34 at the beginning of making the semi-finished product forging be inconjunction with two to eject; Eject at the beginning of back two and to forge the half module performing step 3 that came in 33,34 minutes) described in the demoulding of semi-finished product forging, if forge half module 33 at the beginning of two; 34 not fully with the semi-finished product forging separately, then knock gently it separated.
Wherein, as shown in Figure 6, finisher 4 comprises two finish-forging half modules 43 of finish-forging counterdie 41, finish-forging patrix 42, shaping Lower Half in the step 4); 44, have drift on the finish-forging patrix 42, two finish-forging half modules 43; The finish-forging matched moulds die cavity 45 that forms behind 44 matched moulds is corresponding with the profile of roller 1, finish-forging counterdie 41 have with two finish-forging half module 43,44 matched moulds after the mold cavity that is complementary of profile; Be provided with finish-forging die pad 46 in the mold cavity, the bottom of finish-forging counterdie 41 is provided with finish-forging jogger hole 47, during shaping; The push rod that is provided with on the lathe stretches into finish-forging jogger hole 47 finish-forging die pad 46 jack-up is extremely flushed with the last end face of finish-forging counterdie 41, and placing then, die-cushion 5 spins upside down the semi-finished product forging that obtains in the step 3) on finish-forging die pad 46 again; The good first half 11 is positioned over down on the die-cushion 5 down to make shaping, and following die-cushion 5 can form concavo-convex the cooperation with the axis hole of the first half 11 of roller, is full of the lower space of finish-forging matched moulds die cavity 45 after the concavo-convex cooperation; Again two finish-forging half modules 43,44 are embraced the semi-finished product forging and place on the finish-forging die pad 46 with following die-cushion 5, the slow decline of push rod slowly drops to the mold cavity bottom of finish-forging counterdie 41 until finish-forging die pad 46 then; Because of the up big and down small tapering that has of the mold cavity of finish-forging counterdie 41, so in the process that finish-forging die pad 46 descends, two finish-forging half modules 43; 44 more and more tighter with 5 armfuls of semi-finished product forging and following die-cushions; During shaping, be that the drift through finish-forging patrix 42 applies effect downwards, make bar be extruded at the upper space of finish-forging matched moulds die cavity 45; The Lower Half 12 of profile roll; Promptly obtain finished product forging as shown in Figure 7, following die-cushion 5 can guarantee when the Lower Half 12 of forging, originally forges the good first half 11 and can not continue distortion.In Fig. 6; The push rod that is provided with on the lathe stretches into finish-forging jogger hole 47; Finish-forging die pad 46 jack-up to flushing with the last end face of finish-forging counterdie 41, are made that forging good roller 1, two finish-forging half modules 43,44 and following die-cushion 5 ejects together; Eject back two finish-forging half modules 43,44, down die-cushion 5 all with the roller performing step 5 that came in 1 minute) demoulding of middle finished product forging.
The forging method that the present invention proposes; Utilize the mode of closed-die forging (being the HALF die forging method) to forge the first half of roller earlier, utilize the mode of matched moulds to forge the Lower Half of roller again, the roller of shaping has a plurality of flanges; And roller has same central axis and need not welding; And this mode can guarantee that the forging filling is full, can effectively avoid the deformation failure of mould again.
More than just the present invention has been carried out exemplary explanation, concrete implementation of the present invention is not limited thereto.The insubstantial modifications that any employing design of the present invention and technical scheme are carried out is all within protection scope of the present invention.

Claims (6)

1. a crawler-mounted excavator is with the forging method of roller, and said roller (1) comprises the first half (11) and Lower Half (12) two parts, and the said first half (11) and Lower Half (12) all have two flange flanges (111; 112,121,122); It is characterized in that, may further comprise the steps:
1) heating blank bar;
2) through the first half (11) of first forging die (3) forging roller, obtain the semi-finished product forging;
3) the semi-finished product forging is carried out the demoulding;
The Lower Half (12) of 4) the semi-finished product forging being forged roller through finisher (4) obtains the finished product forging;
5) to the demoulding of finished product forging.
2. crawler-mounted excavator according to claim 1 is characterized in that step 2 with the forging method of roller) in; Said forging die just comprises just to be forged counterdie (31), just forges half module (33,34) at the beginning of forging patrix (32), the shaping first half two, forges half module (33 at the beginning of said two; 34) the first forging matched moulds die cavity (35) that forms behind the matched moulds and the first half (11) profile are complementary, and the said counterdie (31) of just forging has the upper impression and the lower impressions of connection, forge half module (33 at the beginning of two; 34) shape of profile behind the matched moulds and said upper impression is complementary, and the shape of said lower impressions and the profile of bar are complementary, during shaping; Earlier bar is put into lower impressions, put into upper impression with forging half module (33,34) at the beginning of two again; Drift through first forging patrix (32) applies effect downwards; Make bar be extruded in said matched moulds die cavity (35) lining of just forging, the said first half (11) that is shaped promptly obtains the semi-finished product forging.
3. crawler-mounted excavator according to claim 2 is characterized in that, in the step 3) with the forging method of roller; Be provided with in the said lower impressions and just forge die pad (36), said bottom of just forging counterdie (31) is provided with just forges jogger hole (37), and the push rod that is provided with on the lathe stretches into the said jogger hole (37) of just forging will just forge die pad (36) jack-up; Forge half module (33 at the beginning of making the semi-finished product forging be inconjunction with two; 34) eject, eject and forge the demoulding that half module (33,34) divides the realization semi-finished product forging that comes at the beginning of back two.
4. crawler-mounted excavator according to claim 3 is characterized in that, in the step 4) with the forging method of roller; Said finisher (4) comprises two finish-forging half modules (43,44) of finish-forging counterdie (41), finish-forging patrix (42), the said Lower Half that is shaped, said two finish-forging half modules (43; 44) the finish-forging matched moulds die cavity (45) that forms behind the matched moulds is corresponding with the profile of said roller (1), said finish-forging counterdie (41) have with said two finish-forging half modules (43,44) matched moulds after the mold cavity that is complementary of profile; Be provided with finish-forging die pad (46) in the said mold cavity; The bottom of said finish-forging counterdie (41) is provided with finish-forging jogger hole (47), and during shaping, the push rod that is provided with on the lathe stretches into said finish-forging jogger hole (47) finish-forging die pad (46) jack-up is extremely flushed with the last end face of finish-forging counterdie (41); Place die-cushion (5) then on finish-forging die pad (46); The semi-finished product forging that obtains in the step 3) is spun upside down, the good first half (11) is positioned over down on the die-cushion (5) down to make shaping again, and said die-cushion (5) down can form concavo-convex the cooperation with the axis hole of the first half (11) of roller; Be full of the lower space of said finish-forging matched moulds die cavity (45) after the concavo-convex cooperation; Again two finish-forging half modules (43,44) are embraced the semi-finished product forging and place on the said finish-forging die pad (46) with following die-cushion (5), said then push rod slowly descends and slowly drops to the mold cavity bottom of finish-forging counterdie (41) until finish-forging die pad (46); Drift through finish-forging patrix (42) applies effect downwards at last; Make bar be extruded at the upper space of said finish-forging matched moulds die cavity (45), the Lower Half of profile roll (12) promptly obtains the finished product forging.
5. crawler-mounted excavator according to claim 4 is characterized in that with the forging method of roller, the up big and down small tapering that has of the mold cavity of said finish-forging counterdie (41).
6. crawler-mounted excavator according to claim 4 is with the forging method of roller; It is characterized in that in the step 5), said push rod stretches into said finish-forging jogger hole (47) finish-forging die pad (46) jack-up is extremely flushed with the last end face of finish-forging counterdie (41); Make and forge good roller (1), two finish-forging half modules (43; 44) and following die-cushion (5) eject together, eject back two finish-forging half modules (43,44), down die-cushion (5) all comes with roller (1) branch and is embodied as the demoulding of article forging.
CN201210119155.8A 2012-04-20 2012-04-20 Method for forging roller for crawler excavator Active CN102632184B (en)

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Application Number Priority Date Filing Date Title
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CN102632184B CN102632184B (en) 2014-10-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103056602A (en) * 2012-09-11 2013-04-24 昌利锻造有限公司 Manufacturing method for rolling wheel for crawler excavator
CN105363979A (en) * 2015-11-27 2016-03-02 昆山惠众机电有限公司 Forging technology used for robot speed reducer output plate

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US4294101A (en) * 1979-01-12 1981-10-13 Diemer Donald J Method of making single or double flanged track tractor roller for off-highway equipment
US4413496A (en) * 1979-01-12 1983-11-08 Diemer Donald J Method of making flanged track tractor roller for off-highway equipment
US4425779A (en) * 1979-01-12 1984-01-17 Diemer Donald J Method of making single or double flanged track tractor roller for off-highway equipment
US4649731A (en) * 1983-12-02 1987-03-17 Thyssen Industrie Ag, Schmiedetechnik/Bergbautechnik Forging die
WO1988006931A1 (en) * 1987-03-13 1988-09-22 Caterpillar Inc. Process and apparatus for forging one piece track roller rim
CN101224483A (en) * 2007-12-28 2008-07-23 李积云 Module for producing wheel-class parts and forging process thereof

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Publication number Priority date Publication date Assignee Title
US4294101A (en) * 1979-01-12 1981-10-13 Diemer Donald J Method of making single or double flanged track tractor roller for off-highway equipment
US4413496A (en) * 1979-01-12 1983-11-08 Diemer Donald J Method of making flanged track tractor roller for off-highway equipment
US4425779A (en) * 1979-01-12 1984-01-17 Diemer Donald J Method of making single or double flanged track tractor roller for off-highway equipment
US4649731A (en) * 1983-12-02 1987-03-17 Thyssen Industrie Ag, Schmiedetechnik/Bergbautechnik Forging die
WO1988006931A1 (en) * 1987-03-13 1988-09-22 Caterpillar Inc. Process and apparatus for forging one piece track roller rim
CN101224483A (en) * 2007-12-28 2008-07-23 李积云 Module for producing wheel-class parts and forging process thereof

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付文灿: "支重轮半体锻模裂纹及止裂措施", 《锻压机械》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103056602A (en) * 2012-09-11 2013-04-24 昌利锻造有限公司 Manufacturing method for rolling wheel for crawler excavator
CN105363979A (en) * 2015-11-27 2016-03-02 昆山惠众机电有限公司 Forging technology used for robot speed reducer output plate
CN105363979B (en) * 2015-11-27 2017-09-22 昆山惠众机电有限公司 A kind of forging technology for robot decelerator output panel

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