Large-specification high-strength ring groove rivet connection pair

Abstract

The utility model discloses a large-specification high-strength ring groove rivet connection pair which comprises a rivet, a straight lantern ring, a fillet gasket and a flange gasket. The rivet is composed of a cap, a polished rod section, an annular groove tooth-shaped section and a spiral groove tooth-shaped section which are arranged in sequence. The straight lantern ring is composed of a guide section and a pipe section. The flange gasket is a circular gasket, and six protrusions are evenly arranged on the surface of one side of the circular gasket at intervals. And the fillet gasket is a ring-shaped gasket. The connecting pair comprises the two gaskets, so that the contact area between the connecting pair and a connected piece is effectively enlarged, and the connecting reliability is improved; a conventional flange lantern ring is designed into the flange gasket and the straight lantern ring, the upsetting deformation of the flange lantern ring is reduced, the production difficulty is lowered, and the production efficiency and quality are improved; the tail part of the rivet adopts a spiral structure, so that screwing is facilitated, and the operation difficulty is reduced; the connecting pair is a large-specification high-strength ring groove rivet with the diameter of 33 mm-72 mm, the performance grade of 10.9, the tensile strength larger than 1040 Mpa and the yield strength larger than 940 Mpa.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of connecting and fastening, especially to the technical field of metal fastener design and production, and particularly relates to a large-specification high-strength ring groove rivet connecting pair. BACKGROUND

[0002] The research finds that the product types of the performance grade 8.8 ring groove rivet are all 36mm in diameter and below, the product types of the performance grade 10.9 ring groove rivet are all 30mm in diameter and below, and the 10.9 grade 33mm-72mm diameter ring groove rivet product is rarely circulated and applied in the market.

[0003] With the popularization and application of the ring groove rivet connecting pair in the fields of wind power equipment, bridge steel structure, mine machinery, heavy machinery equipment and the like, the existing specifications and performance grades cannot meet the needs of the market. The utility model develops a 10.9 grade M33-M72 large-specification high-strength ring groove rivet connecting pair, which is used for solving the connecting needs of large connecting nodes in the fields of wind power equipment, bridge steel structure, mine machinery, heavy machinery equipment and the like and effectively improving the fatigue, loosening, operation and maintenance and the like of the connecting nodes, so that the large connecting nodes achieve the excellent connecting effect of good fatigue performance, never loosening and post-maintenance free. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a large-specification high-strength ring groove rivet connecting pair according to the defects of the prior art. The utility model aims at providing a high-strength ring groove rivet connecting pair with a diameter range of 33mm-72mm interval, a performance grade of 10.9, a tensile strength of >1040Mpa and a yield strength of >940Mpa.

[0005] The utility model discloses the following technical scheme:

[0006] A large-specification high-strength ring groove rivet connecting pair, comprising a rivet, a straight sleeve ring, a round corner gasket and a flange gasket four assemblies, characterized in that:

[0007] The rivet is composed of a head, a light pole section, a ring groove tooth section and a spiral groove tooth section arranged in sequence;

[0008] The straight sleeve ring is composed of a guide section and a pipe section;

[0009] The flange gasket is a circular ring gasket, and the circular ring gasket has six protrusions uniformly spaced on one side surface;

[0010] The round corner gasket is a circular ring gasket.

[0011] Further, the length L3 of the ring groove tooth section of the rivet is greater than the length L5 of the straight collar by at least 5 mm, which ensures the adaptability of the rivet and can be used for riveting of multiple connection thicknesses.

[0012] Further, the head thickness L1 of the rivet is greater than 0.5 times the diameter D2 of the light rod section of the rivet, which can ensure the connection strength of the rivet head while reducing the weight of the rivet.

[0013] Further, the length L2 of the light rod section of the rivet can be customized according to the actual connection thickness of the connected parts, which effectively ensures the connection reliability of the large-specification high-strength ring groove rivet connection pair.

[0014] Further, the length L3 of the ring groove tooth section of the rivet is greater than the length L4 of the spiral groove tooth section, and the length L4 of the spiral groove tooth section is the force point during installation of the large-specification high-strength ring groove rivet connection pair, and the length L3 of the ring groove tooth section is the effective matching length of the collar during riveting installation.

[0015] Further, the diameter D1 of the rivet head is greater than 1.5 times the diameter D2 of the light rod section of the rivet, and the outer diameter D3 of the collar tube is greater than 1.4 times the diameter D2 of the light rod section of the rivet, which can effectively reduce the pressure on the contact surface during riveting and protect the connected parts.

[0016] Further, the six convex round points provided on one side surface of the flange washer can intuitively judge whether the connection pair has been riveted in place through the deformation of the convex round points during installation, which can effectively ensure the installation quality.

[0017] The utility model has the advantages of:

[0018] The high-strength ring groove rivet connection pair of the utility model comprises two gaskets, i.e., a head lower corner gasket and a flange gasket, and two gaskets are added in the ring groove rivet connection pair, which are arranged on the two surfaces of the two connected parts far away from each other during riveting connection, can effectively expand the contact area with the connected parts, and improve the connection reliability.

[0019] The high-strength ring groove rivet connection pair of the utility model has a diameter of M33 to M72, a hardness of 10.9 grade, a tensile strength of >1040 Mpa, and a yield strength of >940 Mpa, and forms a large-specification ring groove rivet connection product in the M33 to M72 range, which provides a new connection scheme selection for the fields of wind power equipment, bridge steel structure, mine machinery, heavy machinery equipment, etc.

[0020] The high-strength ring groove rivet connection pair of the utility model designs the conventional flange collar into a flange gasket and a straight collar, which obviously reduces the deformation amount of raw materials during the upsetting production of the flange collar, greatly reduces the production difficulty, and improves the production efficiency and quality.

[0021] The high-strength ring groove rivet connecting pair adopts the spiral structure for the rivet tail part, is favorable for the screwing of the riveting tool during installation, reduces the operation difficulty, and effectively reduces the labor intensity of workers during riveting of large-size rivets. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the connecting pair schematic diagram of the utility model;

[0023] Figure 2 is the connecting pair rivet schematic diagram of the utility model;

[0024] Figure 3 is the connecting pair flange gasket side view schematic diagram of the utility model;

[0025] Figure 4 is the connecting pair flange gasket front view schematic diagram of the utility model;

[0026] Figure 5 is the connecting pair sleeve ring schematic diagram of the utility model.

[0027] In the figure, 1 is a rivet, 2 is a round corner gasket, 3 is a flange gasket, and 4 is a straight sleeve ring; 1.1 is a head, 1.2 is a smooth rod, 1.3 is a ring groove, and 1.4 is a spiral groove; 3.1 is a gasket, 3.2 is a protrusion, 4.1 is a guide section, and 4.2 is a pipe section. DETAILED DESCRIPTION

[0028] The utility model is further explained in combination with specific implementation manners, and the specific implementation manners are further explanation of the principle of the utility model, do not limit the utility model in any way, and the same or similar technology of the utility model does not exceed the protection scope of the utility model.

[0029] In combination with the drawings.

[0030] A large-size high-strength ring groove rivet connecting pair, comprising a rivet 1, a straight sleeve ring 4, a round corner gasket 2 and a flange gasket 3 four assemblies;

[0031] The rivet 1 is composed of a head 1.1, a smooth rod section 1.2, a ring groove 1.3 tooth section and a spiral groove tooth section 1.4 four parts arranged in sequence;

[0032] The straight sleeve ring 4 is composed of a guide section 4.1 and a pipe section 4.2;

[0033] The flange gasket 3 is a circular ring gasket 3.1, and the one side surface of the circular ring gasket 3.1 is uniformly spaced six protrusions 3.2;

[0034] The round corner gasket 2 is a circular ring gasket.

[0035] The utility model discloses please connect vice including two gaskets, one is the fillet washer 2 of riveting fastening and is located the round head side, another is the flange washer 3 and is located the straight sleeve ring 4 side, increase two gaskets in the ring groove rivet connecting vice, set up in the two surfaces of two connecting pieces relative far -away when riveting connection, can effectively expand the contact area between the connected piece, improve the connection reliability.

[0036] The ring groove length L3 of the rivet 1 is greater than the straight sleeve length L5, and generally, a difference of 5mm or above is set, one adaptability of the rivet 1 is guaranteed, and the rivet can be used for riveting of multiple connection thicknesses.

[0037] The round head thickness L1 of the rivet 1 is greater than 0.5 times the diameter D2 of the rivet light pole section, the connection strength of the head of the rivet 1 can be guaranteed while the weight of the rivet 1 is reduced.

[0038] The light pole section length L2 of the rivet can be customized according to the actual connection thickness of the connected piece, and the connection reliability of the large-specification high-strength ring groove rivet connecting vice is effectively guaranteed.

[0039] The ring groove length L3 of the rivet is greater than the spiral groove length L4, the spiral groove length L4 is the force point when the large-specification high-strength ring groove rivet connecting vice is installed, and the ring groove length L3 is the effective matching length of the sleeve ring when riveting is installed.

[0040] The round head diameter D1 of the rivet is greater than 1.5 times the diameter D2 of the rivet light pole section, and the sleeve pipe section outer diameter D3 is greater than 1.4 times the diameter D2 of the rivet light pole section, so that the pressure of the contact surface can be effectively reduced when riveting, and the connected piece is protected.

[0041] The six convex 3.2 round points arranged on one side surface of the flange washer 3 can intuitively judge whether the connecting vice has been riveted in place through the deformation of the convex 3.2 round points during installation, and the installation quality can be effectively guaranteed.

[0042] The following table is the parameter of the connecting vice M33-M72 specification of the utility model:

[0043]

[0044]

[0045] The stress cross-sectional area, pull-off force and clamping force of the connecting vice large-specification high-strength ring groove rivet connecting vice meet the requirements in the above table.

Claims

1. A large size high strength ring groove rivet connection pair, comprising four components of rivet, straight sleeve ring, round corner washer, flange washer, characterized in that: The rivet is composed of a head, a light rod section, a ring groove tooth type section, and a spiral groove tooth type section arranged in sequence; the straight sleeve ring is composed of a guide section and a tube section; the flange gasket is a circular ring gasket, and six protrusions are uniformly and spaced apart on one side surface of the circular ring gasket; and the round corner gasket is a circular ring gasket.

2. The large-size high-strength collar rivet connection pair according to claim 1, characterized in that: The length of the ring groove tooth type section is greater than the total length of the straight sleeve ring by 5 mm or more.

3. The large-size high-strength collar rivet connection pair according to claim 1, characterized in that: The thickness of the rivet head is greater than 0.5 times the diameter of the light rod section of the rivet.

4. The large-size high-strength collar rivet connection pair according to claim 1, characterized in that: The length of the ring groove tooth type section of the rivet is greater than the length of the spiral groove tooth type section.

5. The large-size high-strength collar rivet connection pair according to claim 1, characterized in that: The diameter of the rivet head is greater than 1.5 times the diameter of the light rod section of the rivet, and the outer diameter of the tube section of the straight sleeve ring is greater than 1.4 times the diameter of the light rod section of the rivet.

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