CN118423408A - High-strength high-wear-resistance full-forging compact chain and processing technology - Google Patents
High-strength high-wear-resistance full-forging compact chain and processing technology Download PDFInfo
- Publication number
- CN118423408A CN118423408A CN202410422609.1A CN202410422609A CN118423408A CN 118423408 A CN118423408 A CN 118423408A CN 202410422609 A CN202410422609 A CN 202410422609A CN 118423408 A CN118423408 A CN 118423408A
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- China
- Prior art keywords
- ring
- blank
- straight line
- vertical
- flat
- Prior art date
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- Pending
Links
- 238000005242 forging Methods 0.000 title claims abstract description 32
- 238000005516 engineering process Methods 0.000 title abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 24
- 238000005452 bending Methods 0.000 claims description 33
- 238000003825 pressing Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 description 5
- 238000005457 optimization Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F16G13/12—Hauling- or hoisting-chains so called ornamental chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21L—MAKING METAL CHAINS
- B21L3/00—Making chains or chain links by bending the chain links or link parts and subsequently welding or soldering the abutting ends
-
- 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
- F16G15/12—Chain links
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention relates to a high-strength high-wear-resistance full-forging compact chain and a processing technology, wherein the full-forging compact chain comprises flat rings and vertical rings which are sequentially connected in a staggered manner, the flat rings comprise two flat ring straight line parts and two flat ring arc parts, the vertical rings comprise two vertical ring straight line parts and two vertical ring arc parts, the sections of the flat ring straight line parts and the sections of the vertical ring straight line parts are rectangular, one vertical ring straight line part is provided with a welding seam, the flat rings are integrally forged and formed, and the vertical rings are bent and welded and formed after forging, so that planes are formed around the straight line parts before all chain rings are formed, the contact area between the chain wheels and workpieces is improved, the wear resistance and the integral strength are improved, the strength of forged and formed chain rings is higher, and the service life is longer.
Description
Technical Field
The invention relates to the technical field of chains, in particular to a high-strength high-wear-resistance full-forging compact chain and a processing technology thereof.
Background
The chain comprises a plurality of metal chain links, the chain links are widely applied in production life, the chain links are used for mechanical hanging, traction and other purposes, each chain link comprises two straight line parts and two arc-shaped parts for connecting the two straight line parts, in the use process of the chain, one side of each straight line part far away from each other is the place where the two straight line parts are in contact with a workpiece most, and the round ring chain is formed by bending round steel, so that the contact at the place is in line contact, the abrasion is very easy to cause, the strength of the chain links is reduced, and the hardness of the surface of the chain links is greater than that of the inside, the abrasion resistance of the inside of the chain links is poor, once the surface of the chain links is worn, the abrasion of the inside of the chain links is increased, the whole strength of the chain links is reduced, the damage of the chain links is increased, and the service life of the chain is reduced. By changing the line contact of the chain links to the face contact, the strength and wear resistance of the chain links can be greatly enhanced.
The patent of the invention with the publication number of CN111842775B discloses a wear-resistant variable pitch chain and a processing technology thereof, and each chain ring is extruded to form an arc extrusion surface after the chain is bent and butted.
The patent of the utility model with the publication number of CN212177770U discloses a D-shaped high-end round-link chain and processing equipment thereof, wherein an extrusion surface is arranged, one side of two straight line parts, which are far away from each other, is changed from line contact to surface contact, and the side pressing plates are driven by side pressing cylinders at two sides to move towards the direction of the chain ring, so that the side surfaces at two sides of the chain ring are extruded, and the extrusion is also carried out after the processing is finished.
For example, in the above two patents, the existing processing technology adopts extrusion after bending and forming of the chain to form a plane, and the structural shape of the whole chain link can be changed to a certain extent in the extrusion process, so that the structural precision is changed and the strength is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-strength high-wear-resistance full-forging compact chain and a processing technology.
The invention provides a high-strength high-wear-resistance full-forging compact chain, which comprises flat rings and vertical rings which are sequentially connected in a staggered manner, wherein each flat ring comprises two flat ring straight line parts and two flat ring arc parts, each vertical ring comprises two vertical ring straight line parts and two vertical ring arc parts, the cross sections of the flat ring straight line parts and the cross sections of the vertical ring straight line parts are rectangular, and one vertical ring straight line part is provided with a welding seam.
In the scheme, the flat ring is integrally formed by forging, the vertical ring is formed by bending and welding after forging, the welding seam of the straight line part of the vertical ring is formed by butt welding after forging and bending, the cross section of the straight line part of the flat ring and the cross section of the straight line part of the vertical ring are rectangular, so that the contact area with a workpiece is increased, the wear resistance is improved, and the rectangular structure is formed by forging and pressing and has high strength.
As optimization, the sectional area of the straight line part of the standing ring is larger than the sectional area of the arc part of the standing ring. Thereby improving the strength and the wear resistance of the straight line part of the vertical ring.
As optimization, the cross section area of the straight line part of the flat ring is larger than the cross section area of the arc part of the flat ring. Thereby improving the strength and the wear resistance of the straight line part of the flat ring.
Preferably, the welded joint is arranged in the middle of the straight part of the standing ring. Thereby realizing butt welding in the middle of the straight line part of the vertical ring.
As optimization, the cross section of the vertical ring arc-shaped part and the cross section of the horizontal ring arc-shaped part are circular.
As optimization, the thickness of the straight line part of the standing ring is larger than the diameter of the arc part of the standing ring. Thereby improving the area of one side of the straight line parts of the two vertical rings, which is far away from each other, and improving the wear-resisting effect.
As an optimization, the thickness of the straight line part of the flat ring is larger than the diameter of the arc part of the flat ring. Thereby improving the area of one side of the straight line parts of the two flat rings, which are far away from each other, and improving the wear-resisting effect.
A processing technology of a full-forging compact chain comprises the following steps:
a. Processing a flat ring: forming a flat ring by integral forging;
b. Forging and pressing a vertical ring bending blank: forging and pressing round steel to form a ring bending blank, wherein the ring bending blank comprises a third blank section, a second blank section, a first blank section, a second blank section and a third blank section which are sequentially connected, the diameters of the first blank section and the third blank section are equal and larger than those of the second blank section, the length of the third blank section is half of that of the first blank section, and then the first blank section and the third blank section are forged and pressed into a rectangle;
c. Bending the vertical ring: c, heating the vertical ring bending blank after the step b is completed, putting the blank into a bending machine for bending and forming, and bending a second blank section into a vertical ring arc-shaped part;
d. The vertical ring is connected with the flat ring: c, hanging the last flat ring and a single flat ring of the chain into the arc-shaped part of the vertical ring in the step c, and bending the arc-shaped part of the other vertical ring of the vertical ring, so as to connect one flat ring and one vertical ring to the chain;
e. Vertical ring welding deburring: and d, butt-jointing the end parts of the two third blank sections in the step d, welding to form a welding seam, and deburring the welding seam.
The flat ring processing in the step a comprises the following steps: firstly, flattening the blank to form a flattened blank, forging and pressing a long-strip-shaped center long hole in the center of the flattened blank, and then forging and pressing integrally to form a flat ring.
The beneficial effects of the invention are as follows: the flat ring is integrally forged and formed, and the vertical ring is formed by bending and welding after forging, so that before all chain rings are formed, planes are formed around the straight line parts, the contact area with the chain wheel and the workpiece is increased, the wear resistance and the integral strength are improved, and the forged and formed chain ring is higher in strength and longer in service life.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front elevational view of the stand-up ring of the present invention;
FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2 in accordance with the present invention;
FIG. 4 is a cross-sectional view taken along the B-B plane in FIG. 2 in accordance with the present invention;
FIG. 5 is a front view of a standing ring bent blank of the present invention;
FIG. 6 is a top plan view of a flat ring of the present invention;
FIG. 7 is a cross-sectional view taken along the line C-C in FIG. 6 in accordance with the present invention;
FIG. 8 is a cross-sectional view taken along the plane D-D in FIG. 6 in accordance with the present invention;
FIG. 9 is a top view of a clapping blank of the present invention;
FIG. 10 is a top view of the present invention after punching a flat blank;
The figure shows:
1. Vertical ring, 2, flat ring, 11, vertical ring straight line part, 12, vertical ring arc part, 13, welded seam, 14, first blank section, 15, second blank section, 16, third blank section, 21, flat ring straight line part, 22, flat ring arc part, 23, flat blank, 24 and central long hole.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
As shown in figures 1-10, the high-strength high-wear-resistance full-forging compact chain comprises flat rings 2 and vertical rings 1 which are sequentially connected in a staggered manner.
The flat ring 2 is formed by integral forging, welding is not needed, and therefore no butt joint exists, as shown in fig. 6-8, the flat ring 2 comprises two flat ring straight line parts 21 and two flat ring arc parts 22, the cross section of the flat ring straight line parts 21 is rectangular, round corners of the rectangle are provided with round corners, and the cross section of the flat ring arc parts 22 is circular.
The cross-sectional area of the flat ring straight line portion 21 is larger than the cross-sectional area of the flat ring arc portion 22. The thickness of the flat ring straight line portion 21 is larger than the diameter of the flat ring arc portion 22. The vertical dimension of the flat ring straight portion 21 in fig. 7 is the thickness, and the horizontal dimension of the flat ring straight portion 21 in fig. 8 is the thickness.
The vertical ring 1 is formed by bending and welding after forging and pressing, as shown in fig. 2-4, the vertical ring 1 comprises two vertical ring straight line parts 11 and two vertical ring arc parts 12, the cross section of the vertical ring straight line parts 11 is rectangular, round corners of the rectangle are provided with round corners, and the cross section of the vertical ring arc parts 12 is round.
The sectional area of the straight line part 11 of the standing ring is larger than that of the arc part 12 of the standing ring. The thickness of the straight line part 11 of the standing ring is larger than the diameter of the arc part 12 of the standing ring. In fig. 3, the vertical dimension of the straight portion 11 of the vertical ring is the thickness, and in fig. 4, the horizontal dimension of the straight portion 11 of the vertical ring is the thickness.
One of the straight portions 11 of the standing ring is provided with a weld joint 13. The welded joint 13 is arranged in the middle of the straight part 11 of the standing ring.
A processing technology of a full-forging compact chain comprises the following steps:
a. Processing a flat ring: forming the flat ring 2 by integral forging;
The flat ring processing comprises the following steps: as shown in fig. 9, the blank is flattened to form a flattened blank 23, and as shown in fig. 10, a long central long hole 24 is forged and pressed in the center of the flattened blank 23, and then the flat ring 2 is integrally forged and pressed.
B. forging and pressing a vertical ring bending blank: forging and pressing round steel to form a ring bending blank, wherein the ring bending blank comprises a third blank section 16, a second blank section 15, a first blank section 14, a second blank section 15 and a third blank section 16 which are sequentially connected, the diameters of the first blank section 14 and the third blank section 16 are equal and larger than those of the second blank section 15, the length of the third blank section 16 is half of the length of the first blank section 14, and then the first blank section 14 and the third blank section 16 are forged and pressed into a rectangle;
c. Bending the vertical ring: heating the vertical ring bending blank after the step b is completed, putting the blank into a bending machine for bending and forming, and bending a second blank section 15 into a vertical ring arc-shaped part 12;
d. The vertical ring is connected with the flat ring: hanging the last flat ring 2 and a single flat ring 2 of the chain into the vertical ring arc-shaped part 12 in the step c, and bending out the other vertical ring arc-shaped part 12 of the vertical ring 1, thereby connecting one flat ring 2 and one vertical ring 1 to the chain;
e. vertical ring welding deburring: and d, abutting the ends of the two third blank sections 16 in the step, welding to form a welding joint 13, and deburring the welding joint 13.
Repeating the steps d-e, and carrying out heat treatment on the finally formed chain.
Of course, the above description is not limited to the above examples, and the technical features of the present invention that are not described may be implemented by or by using the prior art, which is not described herein again; the above examples and drawings are only for illustrating the technical scheme of the present invention and not for limiting the same, and the present invention has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present invention and the scope of the appended claims.
Claims (9)
1. The utility model provides a compact chain is beaten to high strength high wear-resisting full forging, includes flat ring (2) and upright ring (1) of crisscross connection in proper order, flat ring (2) are including two flat ring straight line portions (21) and two flat ring arc portions (22), upright ring (1) include two upright ring straight line portions (11) and two upright ring arc portions (12), its characterized in that: the cross section of the flat ring straight line part (21) and the cross section of the vertical ring straight line part (11) are rectangular, and a welding seam (13) is arranged on one vertical ring straight line part (11).
2. The high strength, high wear resistant, fully forged compact chain of claim 1, wherein: the sectional area of the vertical ring straight line part (11) is larger than the sectional area of the vertical ring arc part (12).
3. The high strength, high wear resistant, fully forged compact chain of claim 1, wherein: the cross section area of the flat ring straight line part (21) is larger than the cross section area of the flat ring arc part (22).
4. The high strength, high wear resistant, fully forged compact chain of claim 1, wherein: the welding seam (13) is arranged in the middle of the vertical ring straight line part (11) where the welding seam is arranged.
5. The high strength, high wear resistant, fully forged compact chain of claim 1, wherein: the cross section of the vertical ring arc-shaped part (12) and the cross section of the horizontal ring arc-shaped part (22) are circular.
6. The high strength, high wear resistant, fully forged compact chain of claim 5, wherein: the thickness of the vertical ring straight line part (11) is larger than the diameter of the vertical ring arc part (12).
7. The high strength, high wear resistant, fully forged compact chain of claim 5, wherein: the thickness of the flat ring straight line part (21) is larger than the diameter of the flat ring arc part (22).
8. A process for manufacturing a fully forged compact chain according to claim 1, comprising the steps of:
a. Processing a flat ring: forming a flat ring (2) by integral forging;
b. forging and pressing a vertical ring bending blank: forging round steel to form a ring bending blank, wherein the ring bending blank comprises a third blank section (16), a second blank section (15), a first blank section (14), a second blank section (15) and a third blank section (16) which are sequentially connected, the diameters of the first blank section (14) and the third blank section (16) are equal and larger than the diameter of the second blank section (15), the length of the third blank section (16) is half of the length of the first blank section (14), and then the first blank section (14) and the third blank section (16) are forged into a rectangle;
c. Bending the vertical ring: heating the vertical ring bending blank after the step b is completed, putting the blank into a bending machine for bending and forming, and bending a second blank section (15) into a vertical ring arc-shaped part (12);
d. The vertical ring is connected with the flat ring: hanging the last flat ring (2) and a single flat ring (2) of the chain into the vertical ring arc-shaped part (12) in the step c, and bending out the other vertical ring arc-shaped part (12) of the vertical ring (1), thereby connecting one flat ring (2) and one vertical ring (1) to the chain;
e. Vertical ring welding deburring: and d, abutting the ends of the two third blank sections (16) in the step, welding to form a welding seam (13), and deburring the welding seam (13).
9. The process according to claim 8, wherein: the flat ring processing in the step a comprises the following steps: firstly, flattening the blank to form a flattened blank (23), forging and pressing a long-strip-shaped central long hole (24) in the center of the flattened blank (23), and then forging and pressing integrally to form a flat ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410422609.1A CN118423408A (en) | 2024-04-09 | 2024-04-09 | High-strength high-wear-resistance full-forging compact chain and processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410422609.1A CN118423408A (en) | 2024-04-09 | 2024-04-09 | High-strength high-wear-resistance full-forging compact chain and processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118423408A true CN118423408A (en) | 2024-08-02 |
Family
ID=92320345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410422609.1A Pending CN118423408A (en) | 2024-04-09 | 2024-04-09 | High-strength high-wear-resistance full-forging compact chain and processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118423408A (en) |
-
2024
- 2024-04-09 CN CN202410422609.1A patent/CN118423408A/en active Pending
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