CN219221164U - High strength chain rigging circle chain ring - Google Patents
High strength chain rigging circle chain ring Download PDFInfo
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- CN219221164U CN219221164U CN202320688795.4U CN202320688795U CN219221164U CN 219221164 U CN219221164 U CN 219221164U CN 202320688795 U CN202320688795 U CN 202320688795U CN 219221164 U CN219221164 U CN 219221164U
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- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
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Abstract
A high-strength chain rigging round link belongs to the technical field of chain rigging, and the specific scheme is as follows: a high-strength chain rigging round link comprises two crown members and two straight members; the two ring crown members are symmetrically arranged at two ends, and the two ring crown members are integrally connected through two straight members to form a circular link ring; the cross section of the top of the ring crown member is a rounded rectangle, the cross sections of the two ends are circular, and the top of the ring crown member is smoothly transitionally arranged from the top to the two ends; the cross section of the connecting end of the straight body member and the ring crown member is circular, the central cross section of the straight body member is elliptical, and the two ends of the straight body member are smoothly transitionally arranged from the center to the outside. The novel structure of the high-strength chain rigging round link disclosed by the utility model has the characteristics of high strength, high toughness, small volume, reduced water resistance coefficient, prolonged service life and the like.
Description
Technical Field
The utility model belongs to the technical field of chain rigging, and particularly relates to a high-strength chain rigging round link.
Background
The chain rigging formed by connecting single round links can bear larger axial load, and is a common bearing or transmission device in the mechanical engineering industry. The method is specifically applied to: the mooring rope of the carrier-based aircraft on the ship is used for developing a buoy anchor chain in the deep sea, a compact chain and a flat chain for a slag dragging machine and a scraper in a mining mine, an anchor chain for a large-scale ship, a mooring chain for fixing a marine semi-submersible platform and the like. The traditional chain ring is elliptical or circular in shape, the cross section is usually circular, and the chain ring is formed by weaving round steel bars with different diameters through electric welding.
The size of the round links is definitely regulated in the standards of [ mooring chain GB/T20848-2017 ] [ electric welding anchor chain GB/T549-2017 ] [ mining high-strength round link chain GB/T12718-2009 ], and the width of the inner arc of the round link is at least 1.3 times of the line diameter of the round link, so that the contact surfaces of the round links in the shape are in point contact, the contact stress is larger, and the stress concentration of the crown parts of the links can be caused under the combined action of the compressive stress and the shearing stress, so that the bearing capacity is reduced. Because the contact area between the circular section rings is small, the degree of freedom is larger, and the problems of torsion, knotting, winding and the like easily occur in the using process. Meanwhile, the elongation rate is also higher due to the oval structure of the traditional round-link chain, and the longitudinal plastic deformation of the ring body is larger when the ring body is loaded.
Disclosure of Invention
In order to solve the problems in the background technology, the utility model provides a high-strength chain rigging round link.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a high-strength chain rigging round link comprises two crown members and two straight members; the two ring crown members are symmetrically arranged at two ends of the two straight body members, and the two ring crown members are integrally connected through the two straight body members to form a circular link ring; the cross section of the top of the ring crown member is a rounded rectangle, the cross sections of the two ends are circular, and the top of the ring crown member is smoothly transitionally arranged from the top to the two ends; the cross section of the connecting end of the straight body member and the ring crown member is circular, the central cross section of the straight body member is elliptical, and the two ends of the straight body member are smoothly transitionally arranged from the center to the outside.
Further, the length direction of the rounded rectangle is consistent with the length direction of the round link, and the long axis direction of the ellipse is consistent with the thickness direction of the round link.
Further, the diameter of the circle corresponding to the inner circular arc of the ring crown member is equal to the diameter of the circular cross section.
Further, the two ends of the rounded rectangle in the length direction are circular arcs, the distance between the centers of the two circles corresponding to the two circular arcs is 0.3D, the allowable error is +/-20%, and D is the diameter of the circular cross section.
Further, the ratio of the major axis to the minor axis of the ellipse is 1.3:1, allowing an error of + -20%.
Further, a crosspiece is connected to the center of the two straight members.
Further, the crosspiece is a cylinder, the diameter of the crosspiece is 0.8D, the tolerance is ±20%, wherein D is the diameter of the circular cross section.
Further, the straight body member comprises a straight body I and a straight body II, the straight body I and the straight body II are integrally connected end to end, the angle between the straight body I and the straight body II is 120 degrees, and the allowable error is +/-25%.
Further, the distance between the outer surfaces of the middle parts of the two straight members is 3.6D, allowing an error of ±20%, wherein D is the diameter of the circular cross section.
Compared with the prior art, the utility model has the beneficial effects that:
the novel structure of the high-strength chain rope round link disclosed by the utility model has the characteristics of high strength, toughness, small volume, reduced water resistance coefficient, prolonged service life and the like, and compared with a same-diameter chain, the design has good fracture resistance and stability, the dead weight is only about 85% of that of the same-diameter chain, the fracture resistance is more than 1.5 times that of the same-diameter chain, for example, the same-diameter round link is manufactured by using a continuous fiber material, and the dead weight is only 1/7 of that of a steel chain.
Drawings
FIG. 1 is a schematic view of the structure of the circle link without gear of the present utility model;
FIG. 2 is a schematic end cross-sectional view of a non-shift chain ring crown member of the present utility model;
FIG. 3 illustrates a top cross-sectional view of the endless loop crown member of the present utility model;
FIG. 4 is a schematic cross-sectional view of the center of the chainless ring straight member of the present utility model;
FIG. 5 is a schematic view of the structure of the circle link with gear of the present utility model;
FIG. 6 illustrates a first end cross-sectional view of the toothed chain ring crown member of the present utility model;
FIG. 7 illustrates a second end cross-sectional view of the toothed chain ring crown member of the present utility model;
FIG. 8 is a longitudinal cross-sectional view of the circle link with shift according to the present utility model;
in the figure, 1, a ring crown member; 2. a straight body member; 3. a crosspiece; 21. straight body I, 22, straight body II.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are all within the protection scope of the present utility model.
A high-strength chain rigging round link, comprising two crown members 1 and two straight members 2; the two ring crown members 1 are symmetrically arranged at two ends of the two straight members 2, and the two ring crown members 1 are integrally connected through the two straight members 2 to form a circular ring; the cross section of the top of the ring crown member 1 is a rounded rectangle, the cross sections of the two ends are circular, and the top of the ring crown member 1 is smoothly transitionally arranged from the two ends; the cross section of the connecting end of the straight body member 2 and the ring crown member 1 is circular, the central cross section of the straight body member 2 is elliptical, and the two ends of the straight body member 2 are smoothly transited from the center to the outside.
Further, the length direction of the rounded rectangle is consistent with the length direction of the round link, and the long axis direction of the ellipse is consistent with the thickness direction of the round link.
Further, the diameter of the circle corresponding to the inner circular arc of the ring crown member 1 is equal to the diameter of the circular cross section. Namely: the inner arc surface of the ring crown component 1 is in complete fit contact with the inner arc surface of the corresponding connected ring crown component 1.
Further, the two ends of the rounded rectangle in the length direction are circular arcs, the distance between the centers of the two circles corresponding to the two circular arcs is 0.3D, the allowable error is +/-20%, and D is the diameter of the circular cross section. The center distances of the two circles corresponding to the two circular arcs gradually decrease from the top to the two ends of the crown member 1 until the center angle corresponding to the inner circular arc gradually changes to 120 degrees (the allowable error is +/-25%), and the centers of the two circles coincide, namely, the cross section of the crown member 1 at the position where the center angle corresponding to the inner circular arc is 120 degrees (the allowable error is +/-25%) is circular.
Further, the ratio of the major axis to the minor axis of the ellipse is 1.3:1, allowing an error of + -20%.
Further, a crosspiece 3 is connected to the center of the two straight members 2.
Further, the crosspiece 3 is cylindrical, the diameter of the crosspiece 3 is 0.8D, the tolerance is ±20%, and D is the diameter of the circular cross section. The molded surfaces at the two ends of the crosspiece 3 are completely attached to the molded surfaces at the contact position of the straight body member 2.
Further, the straight body member 2 comprises a straight body I21 and a straight body II 22, the straight body I21 and the straight body II 22 are integrally connected, the angle between the straight body I21 and the straight body II 22 is 120 degrees, the allowable error is +/-25%, the whole circular ring is approximately of a diamond structure, and the area surrounded by the ring crown member 1, the crosspiece 3 and the two straight bodies I21 or the straight body II 22 is approximately of an equilateral triangle.
Further, the distance between the outer surfaces of the middle portions of the two straight members 2 is 3.6D, where D is the diameter of the circular cross section, allowing an error of ±20%.
The utility model has reasonable structure, the non-circular section reduces the contact stress and torsion freedom degree between two adjacent circular links, the diamond structure of the chain links with gears greatly reduces the shearing stress, improves the axial strength, avoids the problems of long chain winding and knotting, and improves the working efficiency.
Compared with the circular link ring with the same-line national standard structure, the circular link ring has the advantages of good fracture resistance strength and stability and lighter weight. The inner width of the inner arc surface of the ring crown member 1 is narrowed from 1.3 to 1.6 times of the wire diameter to 1.0 times of the wire diameter (the wire diameter is the diameter of the circular cross sections at the two ends of the ring crown member 1), and the fracture resistance strength is improved by 45 to 50 percent. The reason for the strength improvement of the chain link is that:
1. after the load is increased, the stress of the round-link chain is concentrated at the ring crown part, the fracture after plastic deformation is easy to occur, and the transition area of the straight body part is broken, and the length of the moment arm is increased in the radial direction of the ring crown part, so that the problem of stress concentration can be solved.
2. The diameter of the circle corresponding to the inner circular arc of the ring crown part is narrowed to 1.0 times of the wire diameter, and the contact area after being stressed is enlarged by 350% -450%. The contact stress between the two ends of the round link and the adjacent round link is reduced, the cross section of the straight body part is gradually changed from a circle to an ellipse, the stress condition of the round link is improved, and the service life of the round link is prolonged.
3. By adopting the structural design of the utility model under the working condition with high disturbance requirement, not only the tensile force is improved, but also the elastic deformation is prevented from occurring in the rated load. The elongation of the circle link is reduced, and the longitudinal plastic deformation of the ring body in the stretching process is reduced.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. A high strength chain rigging chain ring, characterized in that: comprises two ring crown components (1) and two straight body components (2); the two ring crown members (1) are symmetrically arranged at two ends of the two straight members (2), and the two ring crown members (1) are integrally connected through the two straight members (2) to form a circular link; the cross section of the top of the ring crown member (1) is a rounded rectangle, the cross sections of the two ends are circular, and the top of the ring crown member (1) is smoothly transitionally arranged from the two ends; the cross section of the connecting end of the straight body member (2) and the ring crown member (1) is circular, the center cross section of the straight body member (2) is elliptical, and the two ends of the straight body member (2) are smoothly transited from the center to the outside.
2. A high strength chain rigging chain ring according to claim 1, wherein: the length direction of the round rectangle is consistent with the length direction of the round link, and the long axis direction of the ellipse is consistent with the thickness direction of the round link.
3. A high strength chain rigging chain ring according to claim 1, wherein: the diameter of the circle corresponding to the inner circular arc of the ring crown member (1) is equal to the diameter of the circular cross section.
4. A high strength chain rigging chain ring according to claim 1, wherein: the two ends of the fillet rectangle in the length direction are circular arcs, the distance between the centers of the two circles corresponding to the two circular arcs is 0.3D, the allowable error is +/-20%, and D is the diameter of the circular cross section.
5. A high strength chain rigging chain link according to claim 1 or 2, wherein: the ratio of the major axis to the minor axis of the ellipse is 1.3:1, allowing an error of + -20%.
6. A high strength chain rigging chain ring according to claim 1, wherein: the middle of the two straight members (2) is connected with a crosspiece (3).
7. A high strength chain rigging chain ring according to claim 6, wherein: the crosspiece (3) is a cylinder, the diameter of the crosspiece (3) is 0.8D, the tolerance is +/-20%, and D is the diameter of a circular cross section.
8. A high strength chain rigging chain link according to claim 1 or 7, wherein: the straight body component (2) comprises a straight body I (21) and a straight body II (22), the straight body I (21) and the straight body II (22) are integrally connected end to end, the angle between the straight body I (21) and the straight body II (22) is 120 degrees, and the allowable error is +/-25%.
9. A high strength chain rigging chain ring according to claim 8, wherein: the distance between the outer surfaces of the middle parts of the two straight body members (2) is 3.6D, the tolerance is +/-20%, and D is the diameter of a circular cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320688795.4U CN219221164U (en) | 2023-03-31 | 2023-03-31 | High strength chain rigging circle chain ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320688795.4U CN219221164U (en) | 2023-03-31 | 2023-03-31 | High strength chain rigging circle chain ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219221164U true CN219221164U (en) | 2023-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320688795.4U Active CN219221164U (en) | 2023-03-31 | 2023-03-31 | High strength chain rigging circle chain ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219221164U (en) |
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2023
- 2023-03-31 CN CN202320688795.4U patent/CN219221164U/en active Active
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