CN113530946A - Round-head torsional shear type high-strength bolt connection pair and production process thereof - Google Patents
Round-head torsional shear type high-strength bolt connection pair and production process thereof Download PDFInfo
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- CN113530946A CN113530946A CN202110826812.1A CN202110826812A CN113530946A CN 113530946 A CN113530946 A CN 113530946A CN 202110826812 A CN202110826812 A CN 202110826812A CN 113530946 A CN113530946 A CN 113530946A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 238000001816 cooling Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 8
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F16B35/02—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws divided longitudinally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to the technical field of bolt connection pairs, and discloses a round-head torsional shear type high-strength bolt connection pair and a production process thereof. This button head torsional shear type high strength bolted connection is vice can still can dismantle the nut fast when the threaded part of bolt takes place the corrosion damage for this bolted connection is vice can dismantle fast, and the threaded part of corrosion can be changed, is convenient for satisfy user's user demand.
Description
Technical Field
The invention relates to the technical field of bolt connection pairs, in particular to a round-head torsional shear type high-strength bolt connection pair and a production process thereof.
Background
The high-strength bolt connection is one of the main connection modes of various steel structures, and the reliability of the high-strength bolt connection directly determines the structural safety. The bolt connection pair in the facility with higher requirement on safety is a high-strength bolt connection pair, each connection pair comprises a bolt, a nut and two washers, and the bolt connection pair, the nut and the two washers are all produced in the same batch and are products processed in the same heat treatment process.
The round head torsional shear type high-strength bolt connection pair is the most common fastener in modern steel structure engineering. The magnitude of the fastening axial force is an important index for embodying the fastening performance of the torsional shear type high-strength bolt connection pair. The fastening axial force of the torsional shear type high-strength bolt connecting pair is realized by applying torque to the nut and simultaneously fixing the quincuncial head at the end part of the screw to reach the rod part of the fixing bolt until the quincuncial head at the end part is twisted off. The nut that current button head torsional shear type high strength bolted connection is vice is not fixed well for the button head, and in case the threaded part of bolt takes place the corrosion damage, the unable rotatory dismantlement of nut leads to vice quick-speed dismantlement of bolted connection, can not satisfy user's user demand.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the round-head torsional shear type high-strength bolt connection pair which has the advantages that a nut can still be rapidly disassembled when the threaded part of the bolt is corroded and damaged, the corroded threaded part can be replaced, and the like, and the problems that the nut of the existing round-head torsional shear type high-strength bolt connection pair is not well fixed due to the round head and cannot be rotationally disassembled once the threaded part of the bolt is corroded and damaged are solved.
(II) technical scheme
In order to achieve the purpose that when the threaded part of the bolt is corroded and damaged, the nut can still be quickly disassembled, and the corroded threaded part can be replaced, the invention provides a round-head torsional shear type high-strength bolt connecting pair which comprises a round-head nut, wherein a fixed column is fixedly connected to one side of the round-head nut, a fixed cylinder is fixedly connected to one end, away from the round-head nut, of the fixed column, a sleeve is sleeved on the fixed cylinder, threads are arranged on the outer cylinder wall of the sleeve, gaskets are sleeved outside the sleeve and the fixed column, a quincuncial head is fixedly connected to one end, away from the round-head nut, of the sleeve, a plurality of positioning grooves are formed in the inner cylinder wall of the sleeve, movable grooves are formed in the outer cylinder wall of the fixed cylinder, located on one side of each positioning groove, movable holes are formed in the bottoms of the movable grooves, and springs are fixedly connected to the bottoms of the movable grooves, the other end fixedly connected with movable frame of spring, the fixed movable rod that has cup jointed in the movable frame, the one end of movable rod passes movable hole, spring and activity groove and extends to the constant head tank in, the draw bar hole has been seted up jointly between fixed column and the round-head nut, bobbin base fixedly connected with extension spring in the fixed cylinder, the other end fixedly connected with pull rod of extension spring, the one end that the plum blossom head was kept away from to the pull rod passes the draw bar hole and outwards extends, and fixedly connected with pull ring, the fixed cup joint has a plurality of loose ring on the pull rod wall, threaded connection has the nut on the sleeve.
The sleeve is characterized in that sliding chutes with openings at two sides are symmetrically formed in the inner cylinder wall of the sleeve, sliding blocks are connected in the sliding chutes in a sliding mode, one ends of the sliding blocks penetrate through corresponding sliding chute notches and extend into the sleeve, and the sliding blocks are fixedly connected to the outer cylinder wall of the fixed cylinder.
Limiting grooves are symmetrically formed in the hole wall of the pull rod hole, limiting blocks are connected in the limiting grooves in a sliding mode, and two opposite ends of the limiting blocks penetrate through corresponding limiting groove notches and extend into the pull rod hole and are fixedly connected to the wall of the pull rod hole together.
The outer cylinder wall of the fixed cylinder is sleeved with a sealing ring, the side wall of the sealing ring is fixedly connected to one end of the fixed column, and the sealing ring is arranged between the sleeve and the fixed column.
The fixed column is sleeved with an elastic ring, the elastic ring is arranged between the round-head nut and the washer, and one end of the movable rod, which is close to the movable ring, is provided with a notch.
The invention also provides a production process of the round-head torsional shear type high-strength bolt connection pair, which comprises the following steps:
step 1, selecting a high-strength hard alloy block as a base material, melting and injecting the base material into various molds, cooling blanks in the molds by using air cooling and water cooling, and taking out the blanks from the various molds:
and 4, putting each blank into a heat treatment device, so that the strength of the heat-treated blank is improved, and cooling each blank to assemble.
(III) advantageous effects
Compared with the prior art, the invention provides the round-head torsional shear type high-strength bolt connection pair, which has the following beneficial effects:
this button head torsional shear type high strength bolted connection is vice, through setting up the button head nut, the fixed column, the solid fixed cylinder, the sleeve, the constant head tank, the movable groove, the activity hole, a spring, the movable frame, the movable rod, the draw rod hole, the extension spring, the pull ring, pull ring and loose ring, when the corrosion takes place to damage in screw thread part or the nut internal thread part on the sleeve, the pulling pull ring, make the end that inserts of movable rod accomodate the activity inslot, the movable rod inserts the end and breaks away from in the constant head tank, can directly take out the sleeve from the solid fixed cylinder, accomplish the vice quick dismantlement of this bolted connection, stimulate the pull ring once more, establish new sleeve cover outside the solid fixed cylinder, the pulling force to the pull ring is cancelled, make the movable rod insert the end insert in the constant head tank that corresponds, can accomplish new sleeve installation fixed, make the screw thread part of corrosion can change.
Drawings
FIG. 1 is a schematic structural view of a round-head torsional shear type high-strength bolt connection pair according to the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
fig. 3 is an enlarged view of a portion B in fig. 1.
In the figure: the device comprises a round head nut 1, a fixed column 2, a fixed cylinder 3, a sleeve 4, a washer 5, a plum blossom head 6, a positioning groove 7, a movable groove 8, a movable hole 9, a spring 10, a movable frame 11, a movable rod 12, a pull rod hole 13, a tension spring 14, a pull rod 15, a pull ring 16, a movable ring 17, a sliding groove 18, a sliding block 19, a limiting groove 20, a limiting block 21, a sealing ring 22, an elastic ring 23 and a nut 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a round-head torsional shear type high-strength bolt connection pair comprises a round-head nut 1, a fixed column 2 fixedly connected to one side of the round-head nut 1, a fixed cylinder 3 fixedly connected to one end of the fixed column 2 far away from the round-head nut 1, a sleeve 4 sleeved on the fixed cylinder 3, threads arranged on the outer cylinder wall of the sleeve 4, washers 5 sleeved on the outer cylinder wall of the sleeve 4 and the fixed column 2, a quincuncial head 6 fixedly connected to one end of the sleeve 4 far away from the round-head nut 1, a plurality of positioning grooves 7 arranged on the inner cylinder wall of the sleeve 4, movable grooves 8 arranged on the outer cylinder wall of the fixed cylinder 3 at one side of each positioning groove 7, movable holes 9 arranged at the bottoms of the movable grooves 8, springs 10 fixedly connected to the bottoms of the movable grooves 8, a movable frame 11 fixedly connected to the other ends of the springs 10, movable rods 12 fixedly connected to the movable frames 11, and movable rods 12 with one ends passing through the movable holes 9, The spring 10 and the movable groove 8 extend into the positioning groove 7, a pull rod hole 13 is jointly arranged between the fixed column 2 and the round-head nut 1, the bottom of the inner cylinder of the fixed cylinder 3 is fixedly connected with a tension spring 14, the other end of the tension spring 14 is fixedly connected with a pull rod 15, one end of the pull rod 15, which is far away from the quincuncial head 6, penetrates through the pull rod hole 13 and extends outwards, the pull rod 16 is fixedly connected with a pull ring 16, a plurality of movable rings 17 are fixedly sleeved on the rod wall of the pull rod 15, a nut 24 is connected on the sleeve 4 in a threaded manner, when the threaded part on the sleeve 4 or the internal threaded part of the nut 24 is corroded and damaged, the pull ring 16 and the pull rod 15 are pulled to move far away from the quincuncial head 6, the tension spring 14 is stretched, the movable rings 17 leave from the inclined surface of the movable rod 12, the spring 10 recovers, so that the insertion end of the movable rod 12 is accommodated in the movable groove 8, the insertion end of the movable rod 12 is separated from the positioning groove 7, namely, the sleeve 4 can be directly separated from the fixed cylinder 3, and nut 24 and round-head nut 1 separate, accomplish this vice quick dismantlement of bolted connection, stimulate pull ring 16 once more, establish new sleeve 4 cover outside solid fixed cylinder 3, cancel the pulling force to pull ring 16 for extension spring 14 resumes, and loose ring 17 offsets with the movable rod 12 inclined plane, and spring 10 is stretched again, makes movable rod 12 insert the end and inserts in corresponding constant head tank 7, can accomplish new sleeve 4 installation fixed, makes the threaded portion of corrosion can change.
Both sides open-ended spout 18 has been seted up to the symmetry on the wall of sleeve 4 inner tube, sliding connection has slider 19 in the spout 18, slider 19's one end is passed corresponding 18 notches of spout and is extended to sleeve 4 interior, and fixed connection is on the 3 outer tube walls of solid fixed cylinder, before sleeve 4 and solid fixed cylinder 3 cup joint, can aim at 18 notches of spout with slider 19, can fix a position sleeve 4, make constant head tank 7 relative with the activity groove 8 that corresponds, be convenient for movable rod 12 insert the end insert corresponding constant head tank 7 in.
The cover is equipped with sealing washer 22 on the fixed cylinder 3 urceolus wall, and sealing washer 22 lateral wall fixed connection is in fixed column 2 one end, and sealing washer 22 sets up between sleeve 4 and fixed column 2, has increased the leakproofness of being connected between fixed cylinder 3 and the fixed column 2.
The cover is equipped with elastic ring 23 on fixed column 2, and elastic ring 23 sets up between round-head nut 1 and packing ring 5, and the one end that movable rod 12 is close to movable ring 17 is equipped with the breach for have certain elasticity on the round-head nut 1, prevent that the power that receives on the round-head nut 1 is too big and the fracture.
A production process of a round-head torsional shear type high-strength bolt connection pair comprises the following steps:
step 1, selecting a high-strength hard alloy block as a base material, melting and injecting the base material into various molds, cooling blanks in the molds by using air cooling and water cooling, and taking out the blanks from the various molds:
and 4, putting each blank into a heat treatment device, so that the strength of the heat-treated blank is improved, and cooling each blank to assemble.
In conclusion, in the using process of the round-head torsional shear type high-strength bolt connection pair, when the threaded part on the sleeve 4 or the internal threaded part of the nut 24 is corroded and damaged, the pull ring 16 and the pull rod 15 are pulled to move away from the plum blossom head 6, the tension spring 14 is pulled, the movable ring 17 leaves from the inclined surface of the movable rod 12, the spring 10 recovers, so that the insertion end of the movable rod 12 is accommodated in the movable groove 8, the insertion end of the movable rod 12 is separated from the positioning groove 7, the sleeve 4 can be directly pulled away from the fixed cylinder 3, the nut 24 is separated from the round-head nut 1, the quick disassembly of the bolt connection pair is completed, the pull ring 16 is pulled again, a new sleeve 4 is sleeved outside the fixed cylinder 3, the tension force on the pull ring 16 is cancelled, the tension spring 14 recovers, the movable ring 17 abuts against the inclined surface of the movable rod 12, the spring 10 is stretched again, so that the insertion end of the movable rod 12 is inserted into the corresponding positioning groove 7, the installation and fixation of the new sleeve 4 can be completed, so that the rusted thread part can be replaced.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a button head is turned round and is cut type high strength bolted connection is vice, includes button head nut (1), its characterized in that: one side of the round-head nut (1) is fixedly connected with a fixed column (2), one end of the fixed column (2) far away from the round-head nut (1) is fixedly connected with a fixed cylinder (3), a sleeve (4) is sleeved on the fixed cylinder (3), threads are arranged on the outer cylinder wall of the sleeve (4), gaskets (5) are sleeved outside the sleeve (4) and the fixed column (2), one end of the sleeve (4) far away from the round-head nut (1) is fixedly connected with a plum blossom head (6), a plurality of positioning grooves (7) are formed in the inner cylinder wall of the sleeve (4), a movable groove (8) is formed in the outer cylinder wall of the fixed cylinder (3) on one side of each positioning groove (7), a movable hole (9) is formed in the bottom of each movable groove (8), a spring (10) is fixedly connected to the bottom of each movable groove (8), and a movable frame (11) is fixedly connected to the other end of each spring (10), fixed cover has been connect movable rod (12) in movable frame (11), the one end of movable rod (12) is passed activity hole (9), spring (10) and activity groove (8) and is extended in to constant head tank (7), pull rod hole (13) have been seted up jointly between fixed column (2) and round-head nut (1), fixedly connected with extension spring (14) at the bottom of solid fixed cylinder (3) inner tube, the other end fixedly connected with pull rod (15) of extension spring (14), pull rod (15) are kept away from the one end of plum blossom head (6) and are passed pull rod hole (13) and outwards extend, and fixedly connected with pull ring (16), a plurality of loose collar (17) have been cup jointed to the fixed on pull rod (15) pole wall, threaded connection has nut (24) on sleeve (4).
2. The round head torsional shear type high-strength bolt connection pair as claimed in claim 1, wherein: the sleeve is characterized in that sliding grooves (18) with openings at two sides are symmetrically formed in the inner cylinder wall of the sleeve (4), sliding blocks (19) are connected in the sliding grooves (18) in a sliding mode, one ends of the sliding blocks (19) penetrate through corresponding notches of the sliding grooves (18) and extend into the sleeve (4), and the sliding blocks are fixedly connected to the outer cylinder wall of the fixed cylinder (3).
3. The round head torsional shear type high-strength bolt connection pair as claimed in claim 1, wherein: spacing groove (20) have been seted up to the symmetry on draw-bar hole (13) pore wall, sliding connection has stopper (21) in spacing groove (20), two stopper (21) one end in opposite directions passes corresponding spacing groove (20) notch and extends to draw-bar hole (13), and common fixed connection is on draw-bar (15) pole wall.
4. The round head torsional shear type high-strength bolt connection pair as claimed in claim 1, wherein: the outer cylinder wall of the fixed cylinder (3) is sleeved with a sealing ring (22), the side wall of the sealing ring (22) is fixedly connected to one end of the fixed cylinder (2), and the sealing ring (22) is arranged between the sleeve (4) and the fixed cylinder (2).
5. The round head torsional shear type high-strength bolt connection pair as claimed in claim 1, wherein: the fixed column (2) is sleeved with an elastic ring (23), the elastic ring (23) is arranged between the round-head nut (1) and the gasket (5), and one end of the movable rod (12) close to the movable ring (17) is provided with a notch.
6. The production process of the round-head torsional shear type high-strength bolt connection pair is characterized by comprising the following steps of:
step 1, selecting a high-strength hard alloy block as a base material, melting and injecting the base material into various molds, cooling blanks in the molds by using air cooling and water cooling, and taking out the blanks from the various molds:
step 2, forming threads on the outer cylinder wall of the sleeve blank, forming a groove on the inner cylinder wall of the sleeve blank, and punching holes on the fixed column blank, the round head blank and the fixed cylinder blank by using a punching machine;
step 3, polishing the surfaces of the blanks through a polisher to meet the use requirements, installing components in the fixed cylinder blank, and welding the fixed cylinder blank and the fixed column blank through a spot welding machine;
and 4, putting each blank into a heat treatment device, so that the strength of the heat-treated blank is improved, and cooling each blank to assemble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826812.1A CN113530946A (en) | 2021-07-21 | 2021-07-21 | Round-head torsional shear type high-strength bolt connection pair and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826812.1A CN113530946A (en) | 2021-07-21 | 2021-07-21 | Round-head torsional shear type high-strength bolt connection pair and production process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113530946A true CN113530946A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110826812.1A Pending CN113530946A (en) | 2021-07-21 | 2021-07-21 | Round-head torsional shear type high-strength bolt connection pair and production process thereof |
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| CN (1) | CN113530946A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750565A (en) * | 2022-10-25 | 2023-03-07 | 浙江利永达制冷机械有限公司 | Combined compression screw and operation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836190U (en) * | 2011-02-12 | 2011-05-18 | 上海申光高强度螺栓有限公司 | High-strength hexagon-flange-faced self-lubricating torsional bolt connection set |
| CN205001352U (en) * | 2015-08-14 | 2016-01-27 | 宁波宁力高强度紧固件有限公司 | Car check bolt |
| CN206349712U (en) * | 2016-12-24 | 2017-07-21 | 刘德义 | Instrument circuit wiring pressure pin |
| CN210565595U (en) * | 2019-07-11 | 2020-05-19 | 扬州市金诺尔不锈钢有限公司 | Alloy steel fastener convenient to dismouting |
| CN112676771A (en) * | 2020-11-24 | 2021-04-20 | 瑞安市遵盛汽车零部件有限公司 | Processing technology of high-strength large hexagon bolt |
-
2021
- 2021-07-21 CN CN202110826812.1A patent/CN113530946A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836190U (en) * | 2011-02-12 | 2011-05-18 | 上海申光高强度螺栓有限公司 | High-strength hexagon-flange-faced self-lubricating torsional bolt connection set |
| CN205001352U (en) * | 2015-08-14 | 2016-01-27 | 宁波宁力高强度紧固件有限公司 | Car check bolt |
| CN206349712U (en) * | 2016-12-24 | 2017-07-21 | 刘德义 | Instrument circuit wiring pressure pin |
| CN210565595U (en) * | 2019-07-11 | 2020-05-19 | 扬州市金诺尔不锈钢有限公司 | Alloy steel fastener convenient to dismouting |
| CN112676771A (en) * | 2020-11-24 | 2021-04-20 | 瑞安市遵盛汽车零部件有限公司 | Processing technology of high-strength large hexagon bolt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750565A (en) * | 2022-10-25 | 2023-03-07 | 浙江利永达制冷机械有限公司 | Combined compression screw and operation method thereof |
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