CN114233736A - Flange plate bolt and manufacturing method and using method thereof - Google Patents
Flange plate bolt and manufacturing method and using method thereof Download PDFInfo
- Publication number
- CN114233736A CN114233736A CN202111581447.9A CN202111581447A CN114233736A CN 114233736 A CN114233736 A CN 114233736A CN 202111581447 A CN202111581447 A CN 202111581447A CN 114233736 A CN114233736 A CN 114233736A
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- flange
- bolt
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- loosening
- rotation
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000011900 installation process Methods 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 8
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/04—Making by means of profiled-rolls or die rolls
-
- 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
- B21J5/002—Hybrid process, e.g. forging following casting
-
- 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
- B21K1/00—Making machine elements
- B21K1/44—Making machine elements bolts, studs, or the like
- B21K1/46—Making machine elements bolts, studs, or the like with heads
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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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/282—Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
Abstract
The invention discloses a flange bolt and a manufacturing method and a using method thereof, wherein the flange bolt comprises the following components: a nut portion; the flange part is fixed with the nut part and is provided with an anti-rotation and anti-loosening structure; the stud part is fixed opposite to the flange part far away from the nut part, and an external thread is arranged on the stud part. Because the included angle between the tooth surface A and the axial direction is 1-3 degrees, the resistance received in the installation process is small, the helical teeth can be tightly meshed with the soft metal and the base body A with rough surface as rigidity, when the flange plate is in a working environment with uneven stress and vibration, because the included angle between the tooth surface B and the axial end surface of the flange part is 30 degrees, the resistance received in the external force and vibration process is large, the development trend of rotation and loosening of the flange plate bolt can be limited, the anti-rotation and anti-loosening effects are achieved, and the problem that the anti-rotation and anti-loosening performance cannot meet the requirement due to the fact that the soft metal is screwed when the surface of the base body contacted with the anti-loosening teeth of the flange plate bolt is rough or smaller than the anti-loosening teeth is solved.
Description
Technical Field
The invention relates to a flange bolt and a manufacturing method and a using method thereof, belonging to the technical field of fasteners.
Background
In the industrial equipment such as aerospace, ships, transportation, high-speed railway, automobiles and the like, a large number of flange plate bolts are used as connecting fasteners to connect two substrates, and the flange plate bolts are generally required to have higher working stability after being connected. At present, flange bolts are affected by external force and vibration in industrial application, and are easy to loose, rotate and other bad phenomena. The main reason that the flange bolts are loosened and rotated on the connecting base body is that due to continuous action of external force and vibration, the threaded connection parts of the flange bolts and the base body are loosened and rotated, gaps are formed between the contact surfaces of the flange bolts and the base body, and through continuous action of the external force and the vibration, the locking force between the flange bolts and the base body is gradually reduced, and the loosening and rotation phenomena of the flange bolts are more serious.
In order to prevent the looseness and rotation of the threaded connection part of the flange plate bolt and the base body, the flange face toothed inner hexagonal anti-loose full-thread screw with the Chinese patent publication number of CN201475121U provides the following technical scheme: the flange surface of the flange part facing the stud part is provided with at least five anti-loosening teeth which sequentially abut against each other and are uniformly distributed in a radial shape, each anti-loosening tooth comprises a vertical surface vertical to the flange surface and an inclined surface with an included angle alpha between the inclined surface and the flange surface, and the angle value range of the included angle alpha is 5-15 degrees, so that the anti-loosening device has a very obvious anti-loosening effect; although the anti-loosening teeth can play a role in preventing loosening, when the surface of the base body in contact with the anti-loosening teeth is rough or the hardness of the base body is less than that of soft metal of the anti-loosening teeth, the anti-rotation and anti-loosening performance generated by screwing the flange plate bolt and the base body cannot meet the requirement.
Disclosure of Invention
In order to solve the technical problem, the invention provides a flange bolt.
The invention also provides a use method of the flange plate bolt.
The invention also provides a manufacturing method of the flange plate bolt.
The invention is realized by the following technical scheme.
The invention provides a flange bolt, comprising:
a nut portion;
the flange part is fixed with the nut part and is provided with an anti-rotation and anti-loosening structure;
the stud part is fixed opposite to the flange part far away from the nut part, and an external thread is arranged on the stud part.
The anti-rotation anti-loosening structure comprises a plurality of helical teeth fixed on the axial end face of the flange part, and the helical teeth are distributed at equal intervals clockwise according to arc angles of degrees to degrees;
the end face of the flange part shaft is in an inclined state and does not contact with a tooth surface B on the inclined teeth, and the included angle between the tooth surface B and the radial direction of the end face of the flange part shaft is 30 degrees;
the tooth surface A is contacted with the end surface of the flange part and is obliquely arranged on the helical teeth, and the included angle between the tooth surface B and the axis of the flange part is 1-3 degrees; a plurality of helical teeth are distributed at equal intervals of 5-15 degrees, the tooth surfaces A of the helical teeth are inclined at included angles of 1-3 degrees, and the tooth surfaces B of the helical teeth form an anti-rotation anti-loosening structure with an included angle of 30 degrees.
And a hexagonal wrenching surface is arranged outside the nut part.
An inner flower type screwing surface is arranged on the end surface of the nut part, which is perpendicular to the screwing surface.
The flange part and the end face of the nut part opposite to the inner flower-shaped wrenching surface are integrally formed and fixed.
The flange part is a cone which is small and is far from the nut part and is large.
The invention also provides a use method of the flange plate bolt, which comprises the following steps:
clamping the nut part by using a wrench to drive the bolt part to rotate clockwise to be in threaded connection with the base body A and the base body B; when the helical teeth reach the contact surface of the base body A, because the included angle between the tooth surface A and the axial direction is 1-3 degrees, the resistance received during installation is small, the helical teeth can be tightly occluded with soft metal and the base body A with rough surface as rigidity, when the helical teeth are in a working environment with uneven stress and vibration, because the included angle between the tooth surface B and the axial end surface of the flange part is 30 degrees, the resistance received when the helical teeth are subjected to external force and vibration is large, and the development trend of rotation and looseness of the flange bolt can be limited.
A manufacturing method of a flange bolt comprises the following steps:
step a, blanking part → step b, primary upsetting part → step c, pre-upsetting part → step d, fine upsetting part → step e, thread rolling part.
The invention has the beneficial effects that: because the included angle between the tooth surface A and the axial direction is 1-3 degrees, the resistance received in the installation process is small, the helical teeth can be tightly meshed with the soft metal and the base body A with rough surface as rigidity, when the flange plate is in a working environment with uneven stress and vibration, because the included angle between the tooth surface B and the axial end surface of the flange part is 30 degrees, the resistance received in the external force and vibration process is large, the development trend of rotation and loosening of the flange plate bolt can be limited, the anti-rotation and anti-loosening effects are achieved, and the problem that the anti-rotation and anti-loosening performance cannot meet the requirement due to the fact that the soft metal is screwed when the surface of the base body contacted with the anti-loosening teeth of the flange plate bolt is rough or smaller than the anti-loosening teeth is solved.
Drawings
FIG. 1 is a schematic view of the flange bolts of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a schematic view of the flange bolts of the present invention in common engagement with the base A and the base B;
FIG. 5 is a schematic view of the narrow fit of the flange bolts of the present invention with the deep holes of the substrate A and the substrate B;
FIG. 6 is a schematic view of the flange bolt processing of the present invention;
in the figure: 1-a nut portion; 2-a flange portion; 3-helical teeth; 31-flank a; 32-tooth surface B; 4-stud section; 5-inner flower type wrenching surface; 6-wrenching and twisting the surface; 7-base A; 8-base B.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 1-6.
The invention provides a flange bolt, comprising:
the nut part 1 is provided with a hexagonal screwing surface 6 outside the nut part 1, so that clamping screwing by a wrench is facilitated, and an inner flower type screwing surface 5 is arranged on the end surface of the nut part 1 perpendicular to the screwing surface 6 and used for a hexagonal wrench to extend into and screw;
the flange part 2 is integrally formed and fixed on the end face of the nut part 1 opposite to the inner flower type wrenching face 5, the flange part 2 is a cone which is close to the nut part 1 and is small and far away from the nut part 1, helical teeth 3 are integrally formed and fixed on the axial end face of the flange part 2, the helical teeth 3 are a plurality of helical teeth which are distributed at equal intervals according to the arc angle of 5-15 degrees clockwise, the number of the helical teeth 3 is 72 when the arc angle is 5 degrees, and the number of the helical teeth 3 is 24 when the arc angle is 15 degrees; the tooth surface B32 which is not in contact with the axial end surface of the flange part 2 and is not in contact with the helical teeth 3 is in an inclined state, and the radial included angle between the tooth surface B32 and the axial end surface of the flange part 2 is 30 degrees; the tooth surface A31 of the helical tooth 3 contacting with the axial end surface of the flange part 2 is in an inclined state, and the included angle between the tooth surface B32 and the axial line of the flange part 2 is 1-3 degrees; a plurality of helical teeth 3 are distributed at 5-15 degrees in an equidistant mode, the tooth surface A31 of each helical tooth 3 inclines at an included angle of 1-3 degrees, and the included angle of the tooth surface B32 of each helical tooth 3 is 30 degrees, so that an anti-rotation anti-loosening structure is formed;
the bolt part 4 is integrally formed and fixed on the surface opposite to the flange part 2 far away from the bolt part 1, the bolt part 4 is provided with external threads for screwing and fixing, and the bolt part 1, the flange part 2 and the bolt part 4 are integrally formed into a coaxial integral structure.
The invention also provides a use method of the flange plate bolt, which comprises the following steps:
clamping the nut part 1 by using a wrench to drive the bolt part 4 to rotate clockwise to be in threaded connection with the base A7 and the base B8; when the helical teeth 3 reach the contact surface of the base body A7, because the included angle between the tooth surface A31 and the axial direction is 1-3 degrees, the resistance received during installation is small, the helical teeth 3 can be tightly occluded with soft metal and the base body A7 with rough surface and rigidity, when the flange part is in a working environment with uneven stress and vibration, because the included angle between the tooth surface B32 and the axial end surface of the flange part 2 is 30 degrees, the resistance received during external force and vibration is large, the development trend of rotation and looseness of the flange bolt can be limited, the anti-rotation and anti-looseness effect is achieved, and the problem that the anti-rotation and anti-looseness performance produced by the fact that the soft metal in rough surface or smaller than the anti-looseness teeth is screwed on the surface of the base body contacted with the anti-looseness bolt and anti-looseness teeth cannot meet the requirements is solved.
The helical teeth 3 are tightly meshed with soft metal and a substrate A7 with rough and rigid surface, wherein the reasonable range of the hardness ratio of the helical teeth 3 to the substrate A7 is 2.5-7.0, for example, the helical teeth 3 are made of titanium alloy TC16, and the substrate A7 is made of copper alloy H62; the surface quality of the substrate a7 is less demanding, with a lower limit of surface roughness of 6.3 μm, generally the higher the roughness value of the substrate contact surface, the more advantageous the tight engagement.
This prevent changeing locking ring flange bolt's result of use show:
performing a locking torque test on an anti-rotation anti-loosening flange plate bolt and a common bolt connector (a bolt, nut and washer combined connector) of the specification M5 and the material TC16 based on a test method HB7596-2011, wherein the test equipment is a fastener locking performance tester; the locking torque test comprises 3 locking torque tests at room temperature and 3 locking torque tests at room temperature after high-temperature treatment, the sample pieces of the two test items are 5, and the test data are shown in tables 1 and 2.
Table 1 is a table of torque data for 3 locks at room temperature for the anti-rotation anti-loosening flange bolt and the ordinary bolt connector. Data show that the locking torque of the anti-rotation anti-loosening flange bolt product is within a standard numerical range at room temperature; meanwhile, under the condition that the screwing-in torque is similar, the screwing-out torque of the anti-rotation anti-loosening flange bolt is obviously higher than that of a common bolt connector.
Table 2 is a table of torque data of 3 times of locking at room temperature after high temperature treatment of the anti-rotation and anti-loosening flange bolt and the ordinary bolt connector. Data show that after the anti-rotation anti-loosening flange plate bolt product is subjected to high-temperature treatment, the locking torque under the room temperature condition is in a standard numerical range; meanwhile, under the condition that the screwing-in torque is similar, the screwing-out torque of the anti-rotation anti-loosening flange bolt is obviously higher than that of a common bolt connector.
The analysis shows that on one hand, each test piece of the anti-rotation anti-loosening flange bolt meets the requirements of the technical conditions HB7596-2011 through detection; on the other hand, the anti-rotation and anti-loosening effect of the anti-rotation and anti-loosening flange bolt is more excellent compared with that of a common bolt connector, and the plastic deformation in the engagement process of the anti-rotation and anti-loosening flange bolt enables the connection to be tighter, so that the working stability of the bolt is higher.
TABLE 1 anti-rotation anti-loosening flange bolt and ordinary bolt connector 3 times locking torque data table at room temperature
TABLE 2 anti-rotation anti-loosening flange bolt and ordinary bolt connector after high temperature treatment for 3 times locking torque data table at room temperature
The invention also provides a manufacturing method of the flange plate bolt, which comprises the following steps:
step a, blanking member → step b, primary upsetting member → step c, pre-upsetting member → step d, fine upsetting member → step e, rolling the thread to form the final flange bolt product, as shown in fig. 6.
Claims (8)
1. A flange bolt, comprising:
a nut portion (1);
the flange part (2), the flange part (2) is fixed with the nut part (1), and the flange part (2) is provided with an anti-rotation and anti-loosening structure;
the screw part (4), the screw part (4) is fixed with the flange part (2) opposite surface far away from the screw cap part (1), and the screw part (4) is provided with external threads.
2. The flange bolt of claim 1, wherein: the anti-rotation anti-loosening structure comprises a plurality of helical teeth (3) fixed on the axial end face of the flange part (2), and the helical teeth (3) are equidistantly distributed clockwise according to the arc angle of (5) DEG to (15);
the axial end face of the flange part (2) is in an inclined state and is not contacted with a tooth surface B (32) on the helical teeth (3), and the radial included angle between the tooth surface B (32) and the axial end face of the flange part (2) is 30 degrees;
the tooth surface A (31) is contacted with the shaft end surface of the flange part (2) and is in an inclined state on the helical teeth (3), and the included angle between the tooth surface B (32) and the axis of the flange part (2) is 1-3 degrees; a plurality of helical teeth (3) are distributed at an equal distance of 5-15 degrees, the tooth surface A (31) of each helical tooth (3) inclines at an included angle of 1-3 degrees, and the included angle of the tooth surface B (32) of each helical tooth (3) is 30 degrees, so that an anti-rotation anti-loosening structure is formed.
3. The flange bolt of claim 2, wherein: the hexagonal wrenching surface (6) is arranged outside the nut part (1).
4. The flange bolt of claim 3, wherein: an inner flower type screwing surface (5) is arranged on the end surface of the nut part (1) which is vertical to the screwing surface (6).
5. The flange bolt of claim 4, wherein: the flange part (2) and the end surface of the nut part (1) opposite to the inner flower type wrenching surface (5) are integrally formed and fixed.
6. The flange bolt of claim 5, wherein: the flange part (2) is a cone which is close to the nut part (1) and is small and far away from the nut part (1) and is large.
7. A method of manufacturing a flange bolt according to any one of claims 1 to 6, comprising the steps of: step a, blanking part → step b, primary upsetting part → step c, pre-upsetting part → step d, fine upsetting part → step e, thread rolling part.
8. A method of using the flange bolts of any one of claims 1 to 6, comprising the steps of:
clamping the nut part (1) by using a wrench to drive the bolt part (4) to rotate clockwise to be in threaded connection with the base body A (7) and the base body B (8) first; when the helical teeth (3) reach the contact surface of the base body A (7), because the included angle between the tooth surface A (31) and the axial direction is 1-3 degrees, the resistance received during installation is small, the helical teeth (3) can be tightly meshed with soft metal and the base body A (7) with rough surface and rigidity, when the base body A is in a working environment with uneven stress and vibration, because the included angle between the tooth surface B (32) and the axial end surface of the flange part (2) is 30 degrees, the resistance received during external force and vibration is large, and the development trend of rotation and looseness of the flange plate bolt can be limited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581447.9A CN114233736A (en) | 2021-12-22 | 2021-12-22 | Flange plate bolt and manufacturing method and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581447.9A CN114233736A (en) | 2021-12-22 | 2021-12-22 | Flange plate bolt and manufacturing method and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114233736A true CN114233736A (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111581447.9A Pending CN114233736A (en) | 2021-12-22 | 2021-12-22 | Flange plate bolt and manufacturing method and using method thereof |
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| Country | Link |
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| CN (1) | CN114233736A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251144A (en) * | 2008-03-26 | 2008-08-27 | 蔡体勇 | Zigzag backing-up screw |
| CN201428714Y (en) * | 2009-06-11 | 2010-03-24 | 蔡体勇 | Half-thread lock screw for toothed inner/outer hexagonal of flange surface |
| CN102581575A (en) * | 2012-03-21 | 2012-07-18 | 苏州新凌电炉有限公司 | Fabrication process of hexagonal flange toothed bolt |
| CN204755547U (en) * | 2015-04-15 | 2015-11-11 | 北京必和易达知识产权咨询中心（有限合伙） | A anti -drop screw that is used for on washing machine plastics urceolus big board of fixed drive assembly |
| CN110307236A (en) * | 2019-07-15 | 2019-10-08 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of Anti-looseness bolt device |
| CN210623350U (en) * | 2019-06-28 | 2020-05-26 | 青岛浩瑞钢制品有限公司 | Half flange face is locknut of notch cuttype |
-
2021
- 2021-12-22 CN CN202111581447.9A patent/CN114233736A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251144A (en) * | 2008-03-26 | 2008-08-27 | 蔡体勇 | Zigzag backing-up screw |
| CN201428714Y (en) * | 2009-06-11 | 2010-03-24 | 蔡体勇 | Half-thread lock screw for toothed inner/outer hexagonal of flange surface |
| CN102581575A (en) * | 2012-03-21 | 2012-07-18 | 苏州新凌电炉有限公司 | Fabrication process of hexagonal flange toothed bolt |
| CN204755547U (en) * | 2015-04-15 | 2015-11-11 | 北京必和易达知识产权咨询中心（有限合伙） | A anti -drop screw that is used for on washing machine plastics urceolus big board of fixed drive assembly |
| CN210623350U (en) * | 2019-06-28 | 2020-05-26 | 青岛浩瑞钢制品有限公司 | Half flange face is locknut of notch cuttype |
| CN110307236A (en) * | 2019-07-15 | 2019-10-08 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of Anti-looseness bolt device |
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