CN109590419A - A kind of secondary forging method of belt track iron tooth - Google Patents
A kind of secondary forging method of belt track iron tooth Download PDFInfo
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- CN109590419A CN109590419A CN201811560760.2A CN201811560760A CN109590419A CN 109590419 A CN109590419 A CN 109590419A CN 201811560760 A CN201811560760 A CN 201811560760A CN 109590419 A CN109590419 A CN 109590419A
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- Prior art keywords
- forging
- molding
- belt track
- temperature
- iron tooth
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/003—Selecting material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/04—Shaping in the rough solely by forging or pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/06—Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/008—Incremental forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/022—Special design or construction multi-stage forging presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K27/00—Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means; Arrangement thereof
- B21K27/06—Cutting-off means; Arrangements thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K29/00—Arrangements for heating or cooling during processing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
A kind of secondary forging method of belt track iron tooth, comprising the following steps: A) round steel selection；B) blanking；One section of round steel blank is intercepted as processing former material；C) it is heated at high temperature；Round steel blank is heated to 1000-1150 DEG C, reaches hot forging temperature；D) base；After reaching hot forging temperature, base is carried out by cross wedge rolling；E) first forging molding；The first molding moulds of industrial equipment are put into, first time forging is carried out to the Y direction of blank, obtains the planform in forging Z-direction；F) first time trimming；Remove the burr on forging surface after first forging molding；G) secondary forging molding；The second molding moulds of industrial equipment are put into, forging is turned into direction, second of forging is carried out to X-direction and is processed, the planform in forging Y direction is obtained.The advantage is that complicated belt track iron tooth can be made to obtain final part by forging by the forging of different directions twice, by controlling the temperature in forging process, whole mechanical performance is promoted.
Description
Technical field
The invention belongs to metal forging method field more particularly to a kind of secondary forging methods of belt track iron tooth.
Background technique
Forging be it is a kind of using metal forming machinery to metal stock apply pressure, make its generate plastic deformation with obtain have one
Determine the processing method of mechanical performance, certain shapes and size forging, one of the two big component parts of forging and stamping (forging and punching press).It is logical
The defects of as cast condition that metal generates in smelting process is loose can be eliminated by crossing forging, optimize heterogeneous microstructure, simultaneously because protecting
Complete metal streamline is deposited, the mechanical performance of forging is generally preferred over the casting of same material.High, work is loaded in associated mechanical
The important part of condition sternness mostly uses forging in addition to the plate of the better simply available rolling of shape, profile or weldment.
Crawler belt is as harvester, the main driving medium of the heavy engineerings machinery such as excavator, inside by several crawler belts
Iron teeth is connected with each other, and is played a supporting role, and therefore, belt track iron tooth becomes the normal of crawler belt often in high load operating cooperation
Consumables are advised, need periodically to replace the belt track iron tooth of corrupted.
The existing simple belt track iron tooth of structure can be available by forging, but for the crawler belt of part-structure complexity
Iron teeth mostly uses greatly the mode of casting, on the one hand, casting will cause larger pollution, be unable to satisfy existing environmental protection standard, another
The part machinery performance of aspect, casting is not so good as forging parts, and dimensional accuracy is also poor.
Summary of the invention
To solve the above problems, and invent a kind of good mechanical property, dimensional accuracy is high, a kind of crawler belt iron with long service life
The secondary forging method of tooth.
To achieve the above object, the present invention is addressed by following technical proposals: a kind of secondary forging of belt track iron tooth
Method, comprising the following steps:
A) round steel selection；
B) blanking；One section of round steel blank is intercepted as processing former material；
C) it is heated at high temperature；Round steel blank is heated to 1000-1150 DEG C, reaches hot forging temperature；
D) base；After reaching hot forging temperature, base is carried out by cross wedge rolling；
E) first forging molding；The first molding moulds of industrial equipment are put into, first time forging is carried out to the Y direction of blank, obtains forging Z
Planform in axis direction；
F) first time trimming；Remove the burr on forging surface after first forging molding；
G) secondary forging molding；The second molding moulds of industrial equipment are put into, forging is turned into direction, X-direction is carried out second
Forging processing, obtains the planform in forging Y direction.
Further, first time forging temperature is 950-980 DEG C.
Further, first time trimming temperature is 930-950 DEG C.
Further, the temperature of secondary forging molding is 900 DEG C.
Further, second of trimming is carried out to forging after secondary forging molding, second of trimming temperature is 850 DEG C.
Further, finishing is carried out after second of trimming, improves the dimensional accuracy of forging, the temperature of finishing is 800 DEG C.
Further, forging is divided into the 3-5 hot upsetting of progress step-feeding for the first time, repeatedly pushes away in such a way that a upsetting one is slow
Into, and each push-in stroke is 3-6mm.
Further, step C high temperature heat before carry out slow fire preheating, preheating temperature be 550-600 DEG C, by forging into
Row heat preservation 0.8-1.5h.
Further, the heating speed of slow fire preheating is less than or equal to 70 DEG C/h.
Further, the first molding moulds of industrial equipment and the second molding carry out 360 DEG C of preheatings with moulds of industrial equipment before forging.
The invention has the beneficial effects that:
The structure feature in structure feature and Y direction in belt track iron tooth Z-direction passes sequentially through forging and second for the first time
Secondary forging is completed, and forges that the alternate time is short, and process is simple twice, and complicated belt track iron tooth can be made to obtain most by forging
Whole part, meanwhile, by controlling the temperature in forging process, promote whole mechanical performance.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Fig. 2 is the structural schematic diagram of belt track iron tooth in the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention 1-2, technical solution in the embodiment of the present invention carry out it is clear,
It is fully described by, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
A kind of secondary forging method of belt track iron tooth, a kind of secondary forging method of belt track iron tooth, comprising the following steps:
A) round steel selection；Choose the round steel former material of suitable diameter；
B) blanking；Round steel former material is cut to the round steel blank of several segments appropriate length as processing former material；
C) it is heated at high temperature；Round steel blank is heated to 1000-1150 DEG C, reaches hot forging temperature；
D) base；After reaching hot forging temperature, base is carried out by cross wedge rolling, forging roll, pneumatic hammer etc.；
E) first forging molding；The first molding moulds of industrial equipment are put into, first time forging is carried out to the Y direction of blank, obtains forging Z
Planform in axis direction；Main planform is the upper and lower surface of belt track iron tooth, and precision directly affects belt track iron tooth
With the fitness of crawler belt.
F) first time trimming；Remove the burr on forging surface after first forging molding；
G) secondary forging molding；By the forging after first time trimming, the second molding moulds of industrial equipment are put into, forging is turned 90 °,
Second of forging processing is carried out to Y direction, obtains the planform in forging Y direction, planform is mainly multiple shoes
With the mating connection structure between iron teeth, the precision and mechanical property of the structure directly affect the stationarity and service life of crawler belt.
A kind of secondary forging method of belt track iron tooth, first time forging temperature are 950-980 DEG C.
A kind of secondary forging method of belt track iron tooth, first time trimming temperature are 930-950 DEG C.
A kind of secondary forging method of belt track iron tooth, the temperature of secondary forging molding are 900 DEG C.
A kind of secondary forging method of belt track iron tooth carries out second of trimming to forging after secondary forging molding, and second
Trimming temperature is 850 DEG C.
A kind of secondary forging method of belt track iron tooth, carries out finishing after second of trimming, improves the dimensional accuracy of forging, essence
Whole temperature is 800 DEG C.
A kind of secondary forging method of belt track iron tooth, forging is divided into the 3-5 hot upsetting of progress step-feeding for the first time, using a upsetting
One slow mode repeatedly promotes, and each push-in stroke is 3-6mm.
A kind of secondary forging method of belt track iron tooth carries out slow fire preheating before step C high temperature heats, and preheating temperature is
550-600 DEG C, forging is subjected to heat preservation 0.8-1.5h.
The heating speed of a kind of secondary forging method of belt track iron tooth, slow fire preheating is less than or equal to 70 DEG C/h.
A kind of secondary forging method of belt track iron tooth, the first molding moulds of industrial equipment and the second molding moulds of industrial equipment are being forged
360 DEG C of preheatings are carried out before making, and prevent Contact excessive temperature differentials, cooling velocity is too fast, and stress cracks.
A kind of secondary forging method of belt track iron tooth, further comprises flaw detection and correction process, and JB/ is pressed in ultrasonic examination
T1581-96 standard prescriptive procedure is detected, and acceptance requirement is as follows: 1. do not allow to have the defects that white point, crackle, shrinkage cavity；2.
Defect less than φ 2mm equivalent diameter is disregarded；3. allowing to have the equivalent diameter individually dispersed to be diameter is lacking for φ 1mm- φ 3mm
It falls into and exists, Adjacent defect spacing should be greater than 10 times of larger defect.
Ball blast and gagging carry out Shot Blasting using Q3210C shot-blasting machine, and gagging is rubbed press using 1000T.
Mechanics properties testing data of the invention are as follows:
Tensile strength >=1005Mpa
Yield strength >=830Mpa
Elongation >=14%
The contraction percentage of area >=25%
Brinell hardness HB=243-268
A kind of secondary forging method of belt track iron tooth, which includes gap bridge, positioned at gap bridge two sides, difference disjunctor is arranged
Left wing and right wing part, passing a bridge to be equipped between left wing protrudes from positive left support block of passing a bridge, and passes a bridge between right wing part
Equipped with protruding from the positive right support block of passing a bridge, the bottom surface of left wing, right wing part and gap bridge three is collectively formed to be connect with crawler belt
Contacting surface, the stationarity that the scale error of the contact surface determines that crawler belt is advanced keep its whole by the secondary forging to belt track iron tooth
Body dimensional accuracy all improves a lot, and is especially embodied on the contact surface of crawler belt, and crawler belt is driven along contact surface, in driving process,
Its smoothness is better, and service life is longer, and the abrasion assembled between belt track iron tooth is also smaller.
The dimensional tolerance of traditional casting technique contact surface is (unit is millimeter):
Upper deviation ES=+ 2.3；Lower deviation EI=- 2.3
Pass through secondary forging method:
Upper deviation ES=+ 0.8；Lower deviation EI=- 0.8
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, and do not carrying on the back
In the case where from spirit or essential attributes of the invention, the present invention can be realized in other specific forms, thus no matter from which
From the point of view of a bit, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is wanted by appended right
Ask rather than above description limit, it is intended that by all changes that come within the meaning and range of equivalency of the claims
It is included within the present invention.
Claims (10)
1. a kind of secondary forging method of belt track iron tooth, which comprises the following steps:
A) round steel selection；
B) blanking；
One section of round steel blank is intercepted as processing former material；
C) it is heated at high temperature；
Round steel blank is heated to 1000-1150 DEG C, reaches hot forging temperature；
D) base；
After reaching hot forging temperature, base is carried out by cross wedge rolling；
E) first forging molding；
The first molding moulds of industrial equipment are put into, first time forging is carried out to the Z-direction of blank, is obtained in forging Z-direction
Planform；
F) first time trimming；
Remove the burr on forging surface after first forging molding；
G) secondary forging molding；
The second molding moulds of industrial equipment are put into, forging is turned into direction, second of forging is carried out to Y direction and is processed, is forged
Planform in part Y direction.
2. a kind of secondary forging method of belt track iron tooth according to claim 1, which is characterized in that first time forging temperature
It is 950-980 DEG C.
3. a kind of secondary forging method of belt track iron tooth according to claim 1, which is characterized in that first time trimming temperature
It is 930-950 DEG C.
4. a kind of secondary forging method of belt track iron tooth according to claim 1, which is characterized in that secondary forging molding
Temperature is 900 DEG C.
5. a kind of secondary forging method of belt track iron tooth according to claim 1, which is characterized in that after secondary forging molding
Second of trimming is carried out to forging, second of trimming temperature is 850 DEG C.
6. a kind of secondary forging method of belt track iron tooth according to claim 5, which is characterized in that second of trimming is laggard
Row finishing, improves the dimensional accuracy of forging, and the temperature of finishing is 800 DEG C.
7. a kind of secondary forging method of belt track iron tooth according to claim 2, which is characterized in that forging is divided into for the first time
The 3-5 hot upsetting of progress step-feeding repeatedly promotes in such a way that a upsetting one is slow, and each push-in stroke is 3-6mm.
8. a kind of secondary forging method of belt track iron tooth according to claim 1, which is characterized in that in step C high temperature
Slow fire preheating is carried out before heating, preheating temperature is 550-600 DEG C, and forging is carried out heat preservation 0.8-1.5h.
9. a kind of secondary forging method of belt track iron tooth according to claim 8, which is characterized in that the heating of slow fire preheating
Speed is less than or equal to 70 DEG C/h.
10. a kind of secondary forging method of belt track iron tooth according to claim 1, which is characterized in that the first molding recruitment
Die-filling tool and the second molding carry out 360 DEG C of preheatings with moulds of industrial equipment before forging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811560760.2A CN109590419A (en) | 2018-12-20 | 2018-12-20 | A kind of secondary forging method of belt track iron tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811560760.2A CN109590419A (en) | 2018-12-20 | 2018-12-20 | A kind of secondary forging method of belt track iron tooth |
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| CN109590419A true CN109590419A (en) | 2019-04-09 |
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| CN201811560760.2A Pending CN109590419A (en) | 2018-12-20 | 2018-12-20 | A kind of secondary forging method of belt track iron tooth |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000525A (en) * | 2019-05-17 | 2019-07-12 | 海安县盛泰冷拉型钢有限公司 | A kind of lock tongue production technology based on cold-drawn structural steel |
| CN112275983A (en) * | 2020-11-03 | 2021-01-29 | 浙江信立达机械科技有限公司 | Horizontal forging iron tooth processing technology |
| CN113319233A (en) * | 2021-05-31 | 2021-08-31 | 江麓机电集团有限公司 | Armored track shoe blank manufacturing tool, finish forging die and forging method |
| CN117300791A (en) * | 2023-11-30 | 2023-12-29 | 山东豪迈精锻科技有限公司 | Automatic grinding device and grinding method for burrs of iron tooth forge piece |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100961501B1 (en) * | 2002-06-14 | 2010-06-08 | 가부시키가이샤 고마쓰 세이사쿠쇼 | Track link and method for manufacturing same |
| CN201703447U (en) * | 2010-06-11 | 2011-01-12 | 环球履带（扬州）有限公司 | Iron teeth used inside rubber track |
| CN202413978U (en) * | 2012-01-18 | 2012-09-05 | 浙江云洲科技有限公司 | Iron tooth for rubber track |
| CN105834336A (en) * | 2016-03-25 | 2016-08-10 | 武汉理工大学 | Forging method for ladder-like complex parting surface part |
-
2018
- 2018-12-20 CN CN201811560760.2A patent/CN109590419A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100961501B1 (en) * | 2002-06-14 | 2010-06-08 | 가부시키가이샤 고마쓰 세이사쿠쇼 | Track link and method for manufacturing same |
| CN201703447U (en) * | 2010-06-11 | 2011-01-12 | 环球履带（扬州）有限公司 | Iron teeth used inside rubber track |
| CN202413978U (en) * | 2012-01-18 | 2012-09-05 | 浙江云洲科技有限公司 | Iron tooth for rubber track |
| CN105834336A (en) * | 2016-03-25 | 2016-08-10 | 武汉理工大学 | Forging method for ladder-like complex parting surface part |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000525A (en) * | 2019-05-17 | 2019-07-12 | 海安县盛泰冷拉型钢有限公司 | A kind of lock tongue production technology based on cold-drawn structural steel |
| CN112275983A (en) * | 2020-11-03 | 2021-01-29 | 浙江信立达机械科技有限公司 | Horizontal forging iron tooth processing technology |
| CN113319233A (en) * | 2021-05-31 | 2021-08-31 | 江麓机电集团有限公司 | Armored track shoe blank manufacturing tool, finish forging die and forging method |
| CN117300791A (en) * | 2023-11-30 | 2023-12-29 | 山东豪迈精锻科技有限公司 | Automatic grinding device and grinding method for burrs of iron tooth forge piece |
| CN117300791B (en) * | 2023-11-30 | 2024-02-09 | 山东豪迈精锻科技有限公司 | Automatic grinding device and grinding method for burrs of iron tooth forge piece |
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Application publication date: 20190409 |