CN116428260A - Fastener for nuclear power engineering and manufacturing method thereof - Google Patents
Fastener for nuclear power engineering and manufacturing method thereof Download PDFInfo
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- CN116428260A CN116428260A CN202310401172.9A CN202310401172A CN116428260A CN 116428260 A CN116428260 A CN 116428260A CN 202310401172 A CN202310401172 A CN 202310401172A CN 116428260 A CN116428260 A CN 116428260A
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- stabilizing
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- supporting
- nut
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000012407 engineering method Methods 0.000 title description 2
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 230000002787 reinforcement Effects 0.000 claims abstract description 9
- 230000000087 stabilizing effect Effects 0.000 claims description 105
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000005496 tempering Methods 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 238000005554 pickling Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
-
- 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
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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
- 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
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a fastener, in particular to a fastener for nuclear power engineering and a manufacturing method thereof, comprising the following steps: one end of the screw is provided with a head; and the nut is in threaded fit with the other end of the screw rod. The workpiece to be fastened is provided with a counter bore for sinking into the nut, the nut is provided with a reinforcing component, and the reinforcing component is abutted against the side wall of the counter bore. One end of the screw rod is provided with a head, and the other end of the screw rod is provided with a nut through threaded fit. The workpiece is provided with a counter bore for sinking the nut. Set up the reinforcement subassembly on the nut, the reinforcement subassembly can restrict the removal of nut through the conflict with the pore wall to prevent not hard up emergence.
Description
Technical Field
The invention belongs to the technical field of fasteners, and particularly relates to a fastener for nuclear power engineering and a manufacturing method thereof.
Background
In the connection of nuclear power equipment, a large number of fasteners are required to be used, the existing fasteners are generally fixedly connected by using screws and nuts, but the phenomenon of screw sliding wire is easy to occur in the mode, the phenomenon that the fasteners fall off easily occurs, the existing fasteners are easy to loosen due to repeated disassembly, the connection between the nuclear power equipment is loose, and the safety of the nuclear power equipment is affected.
Disclosure of Invention
The invention aims to solve the technical problems and provides a fastener for nuclear power engineering, which is used for reducing looseness between equipment.
The purpose of the invention is realized in the following way: a fastener for nuclear power engineering, comprising:
one end of the screw is provided with a head;
a nut which is in threaded fit with the other end of the screw;
the fastening device comprises a nut, a workpiece to be fastened, a nut, a reinforcing component and a pressing component, wherein the workpiece to be fastened is provided with a counter bore for sinking into the nut, the nut is provided with the reinforcing component, and the reinforcing component is abutted to the side wall of the counter bore.
In the technical scheme, one end of the screw is provided with a head, and the other end of the screw is provided with a nut through threaded fit. The workpiece is provided with a counter bore for sinking the nut. Set up the reinforcement subassembly on the nut, the reinforcement subassembly can restrict the removal of nut through the conflict with the pore wall to prevent not hard up emergence.
In the above technical solution, further, the reinforcing component includes:
the connecting part is in threaded connection with one end of the screw, where the nut is located, and covers the end face and part of side faces of the nut:
a covering portion extending from the connecting portion and covering the remaining side surface of the nut;
a collision part which is in collision with the side wall of the counter bore;
a transition portion connecting the covering portion and the abutting portion;
the covering part, the abutting part and the transition part form a U-shaped structure, and the U-shaped structure has elasticity.
In the technical scheme, the connecting part is of a cover-shaped structure, and covers the nut while being in threaded fit with the screw. The covering part extends from the connecting part and is connected with the transition part, and the connecting part of the covering part and the transition part is a first bending part. The transition part is connected with the abutting part and the connecting part is a second bending part, so that the covering part, the transition part and the abutting part form a U-shaped structure. After installation, the first bending is abutted against the screw rod, and the second bending is abutted against the corner of the junction of the bottom surface of the counter bore and the side surface, so that the movement of the nut is limited, and the nut is prevented from loosening.
In the technical proposal, further, the part of the connecting part which covers the side surface of the nut is provided with a containing cavity, the nut is provided with a through hole corresponding to the installing cavity,
the utility model discloses a screw rod, including holding the intracavity, hold the intracavity and be equipped with the spacer pin, be equipped with first limiting plate on holding the lateral wall in chamber, be provided with the second limiting plate on the spacer pin, be provided with pressure spring between first limiting plate and the second limiting plate, pressure elasticity can promote in the spacing embedding through-hole with the screw rod conflict.
In this technical scheme, spacing place hold the intracavity and one end extends to the installation cavity outside, can its tip extend to the through-hole of nut through pressure spring in to in the screw thread gap that makes the pointed end of spacing needle can imbed the screw rod, thereby further restrict the removal of nut, prevent to produce not hard up.
The invention also provides a manufacturing method of the fastener for nuclear power engineering, which comprises the following steps:
s1: selecting raw materials;
s2: treating the oxide on the surface of the raw material;
s3: pickling the treated raw materials by a pickling device;
s4: washing and drying the pickled raw materials, and then processing and forming;
s5: tempering the processed and formed fastener through a tempering furnace;
s6: performing rust prevention on the fastener subjected to tempering treatment;
s7: and (5) quality inspection.
In the above technical solution, further, in step S5, the tempering furnace includes:
a furnace body;
the bearing device is arranged in the furnace body and is used for bearing the fastening piece;
the heating device is used for heating the inside of the furnace body;
the bearing device is rotatably arranged in the furnace body, and the heating device is arranged on the side wall of the furnace body.
In the technical scheme, the middle part of the furnace body is provided with a bearing assembly, and the side wall of the inside of the furnace body is provided with a heating assembly. The heating assembly can be used for heating and tempering the workpiece placed in the bearing assembly. The rotatory bearing assembly can guarantee the homogeneity that the work piece was heated, guarantees the stability of quality.
In the above technical solution, further, the carrying assembly includes:
a support shaft disposed at the center of the bearing assembly;
a support frame disposed on the support shaft;
a hopper disposed on the support frame;
wherein the supporting frame is provided with a plurality of hoppers which are equidistantly arranged on the supporting shaft and form a multi-layer structure on the supporting frame, the hoppers are of a fan-shaped structure, the plurality of hoppers are surrounded on the single-layer supporting frame by taking the supporting shaft as the center to form an annular structure,
the support frame comprises a first support ring and a second support ring, the first support ring is connected with the second support ring through a fixing rod, the first support ring is fixed on a support shaft, the second support ring and the first support ring are on the same plane and have larger diameter than the first support ring,
the dead lever is provided with a plurality of and separates the space equidistance between first support ring and the second support ring into a plurality of fan-shaped regions, the center in fan-shaped region is provided with supporting component, the hopper is arranged in on the supporting component.
In this technical scheme, the one end of back shaft extends to the furnace body and through the rotation of motor drive back shaft to drive the rotation of setting up the epaxial support frame of back and setting up the rotation of hopper on the support frame. The support frame is provided with a plurality of vertical direction equidistance distribution along the back shaft to constitute multilayer structure. The hoppers are of fan-shaped structures, and a plurality of hoppers are surrounded into an annular structure on the single-layer support frame by taking the support shaft as the center.
The support frame is annular structure and is divided into a plurality of fan-shaped regional dead levers by first support ring and second support ring and the space equidistance between first support ring and the second support ring. The fixed rod is provided with a supporting component for supporting the hopper. Can guarantee the stability of hopper through supporting component, reduce the hopper and rotate rocking that the in-process produced.
In the above technical solution, further, the supporting component includes:
the fixing piece is arranged on the central line of the sector area, one end of the fixing piece is connected with the first supporting ring, and the other end of the fixing piece is connected with the second supporting ring;
the movable piece is arranged at the bottom of the hopper and can move along the fixed piece;
wherein the fixed part is provided with a first mounting groove, the movable part is provided with a second mounting groove, the first mounting groove is opposite to the second mounting groove in opening and forms a mounting cavity, a telescopic component is arranged in the mounting cavity,
the guide piece is arranged on the surface of the fixed piece where the opening of the first mounting groove is located, and the guide groove matched with the guide piece is arranged on the surface of the movable piece where the opening of the second mounting groove is located.
In this technical scheme, the mounting is fixed with first support ring and second support ring, and the moving part is then fixed in the hopper bottom. The movable piece moves along the fixed piece, so that the hopper can be pulled out from the supporting frame, and the workpiece in the hopper can be conveniently taken and placed.
The first mounting groove is formed in one face, facing the movable part, of the fixed part, and the second mounting groove is formed in one face, facing the fixed part, of the movable part. The fixed piece and the movable piece are buckled to enable the first mounting groove and the second mounting groove to be combined to form a mounting cavity. Set up flexible subassembly in the installation cavity, can cushion the removal of hopper, improve overall structure's stability. The cooperation of guide piece and guide way can guarantee the stability of direction when moving on the mounting, prevents that the moving part from breaking away from.
In the above technical solution, further, the telescopic assembly includes:
a first mounting bracket disposed within the first mounting slot and extending to the second mounting slot;
the second mounting rack is arranged in the second mounting groove and extends to the first mounting groove;
the movable limiting piece is arranged on the first mounting frame and can move along the first mounting frame;
the fixed limiting piece is arranged on the second mounting frame and can be mutually abutted against the movable limiting piece;
wherein the first mounting frame and the second mounting frame are arranged in a staggered manner, the movable limiting part is arranged on one surface of the first mounting frame facing the second mounting frame, the fixed limiting part is arranged on one surface of the second mounting frame facing the first mounting frame, so that the movable limiting part and the fixed limiting part are arranged on the same plane,
the first mounting frame is provided with a guide rail, and the movable limiting part is arranged on the guide rail and can move along the guide rail.
In this technical scheme, first mounting bracket sets up in first mounting groove and extends to in the second mounting groove, makes it be unsettled state under the second mounting groove visual angle. The second mounting frame is arranged in the second mounting groove and extends into the first mounting groove, so that the second mounting frame is in a suspended state under the view angle of the first mounting groove. The first mounting frame and the second mounting frame are arranged in a staggered mode. Set up the guide rail on the first mounting bracket, set up movable limiter on the guide rail, set up fixed limiter on the second mounting bracket, movable limiter can contradict each other with fixed limiter to the removal to the hopper is buffered.
In the above technical scheme, further, the movable limiting part includes:
a moving block disposed on the guide rail and movable along the guide rail;
the first limiting part is arranged on the moving block;
the second limiting part is arranged on the moving block, and the angle between the second limiting part and the first limiting part is at least 90 degrees;
the fixed limiting part includes:
a fixing block fixed on the second mounting frame;
the third limiting part is arranged on the fixed block;
wherein one end of the guide rail is provided with an arc-shaped part, the movable block is provided with a clamping piece, one side of the arc-shaped part is provided with a clamping column which can be abutted against the clamping piece, the movable block is rotatably arranged on the guide rail,
the first mounting frame is provided with a supporting block, the supporting block is provided with a reset spring, and one end of the reset spring is connected with the moving block.
In this technical scheme, the movable limiting part includes the movable block, sets up first spacing portion and second spacing portion on the movable block, and the movable block can rotate at the guide rail to change the position of first spacing portion and second spacing portion. The fixed block is fixed on the second mounting bracket, is provided with third spacing portion on the fixed block, and third spacing portion can be contradicted with first spacing portion or second spacing portion.
Under normal conditions, the third limiting part is in conflict with the first limiting part, and the fixed limiting part can drive the moving block to move on the guide rail when moving along with the hopper, so that the reset spring is stretched, and the movement of the hopper is buffered.
When the hopper is further pulled out, the movable block moves to the arc-shaped part, the movable block rotates to enable the first limiting part to rotate, the first limiting part is separated from the third limiting part and is in conflict, the second limiting part rotates to enable the second limiting part to be in the same straight line with the first limiting part, meanwhile, the clamping piece is in conflict with the clamping column, and the movable block is kept in the current state. At this time, the pulling-out of the hopper is not limited any more, so that the movement of the hopper is facilitated.
When the hopper retreats, the third limiting part bumps the second limiting part to enable the moving block to move out of the arc-shaped part, the moving block rotates to enable the second limiting part to be separated from and to be in contact with the first limiting part, and the first limiting part rotates to be in the same straight line with the third limiting part and is in contact with the third limiting part, so that the whole structure is restored to a normal state.
In the above technical scheme, further, be provided with stable subassembly between back shaft and the furnace body, stable subassembly includes:
a fixing ring disposed on the support shaft;
the first stabilizing ring is sleeved on the supporting shaft, and the fixing ring is rotatably arranged on the first stabilizing ring;
the second stabilizing ring is arranged on the furnace body and sleeved on the first stabilizing ring;
a support assembly interposed between the first stabilizer ring and the second stabilizer ring;
wherein the supporting component comprises an upper stabilizing block and a lower stabilizing block, the upper stabilizing block is abutted against the lower stabilizing block, the lower stabilizing block is abutted against the second stabilizing ring,
the stabilizing assembly also comprises a fixed cover which surrounds the first stabilizing ring and the second stabilizing ring, the upper stabilizing block and the lower stabilizing block are rotatably connected on the inner wall of the fixed cover through a rotating shaft,
the upper stabilizing block comprises a first abutting end and a first protruding part, wherein the first abutting end is respectively arranged at two sides, the first protruding part protrudes towards the lower stabilizing block, the lower stabilizing block comprises a second abutting section and a second protruding part, the second abutting section is respectively arranged at two sides, the second protruding part protrudes towards the upper stabilizing block,
the upper stabilizing block and the lower stabilizing block are arranged in an annular dislocation mode, the first protruding portion is arranged between the two lower stabilizing blocks, the second protruding portion is arranged between the two upper stabilizing blocks, and rotating shafts of the upper stabilizing block and the lower stabilizing block are arranged on a central line.
In this technical scheme, go up the steady piece and stabilize the piece down and can rotate. When the upper stabilizing block is inclined to enable the first sinking other side to be too high, one side of the lower stabilizing block corresponding to one sinking side is also sunk, the other side of the lower stabilizing block is lifted, and the upper stabilizing side corresponding to one lifting side of the lower stabilizing block is lifted to be sunk, so that the lifting sides and the sinking sides of the two adjacent upper stabilizing blocks are opposite, the stress of the whole structure is uniform, and the stability of the supporting shaft is ensured.
The beneficial effects of the invention are as follows:
1. set up the reinforcement subassembly on the fastener, can strengthen nut and screw rod threaded connection's stability through the conflict of reinforcement subassembly and counter bore, prevent to take place not hard up influence safety.
2. The bearing device in the tempering furnace is of a multi-layer structure and rotates in the furnace body, so that the heating uniformity of workpieces in each hopper can be ensured, and the stability of the quality of the workpieces is ensured.
3. Set up supporting component between hopper and the support frame, can realize the stable taking out of hopper through supporting component, the stability of hopper when guaranteeing to rotate.
4. The support component comprises a fixed block and a movable block, and the fixed block and the movable block are in contact with each other and can limit the movement of the hopper through a reset spring in the front section of the pull-out stroke of the hopper, so that the hopper is prevented from being pulled out due to misoperation; the two parts are separated from each other at the rear section of the pull-out stroke of the hopper, the hopper can be free from the limitation of the reset spring, and the workpiece can be conveniently taken and placed.
5. And a stabilizing assembly is arranged between the supporting shaft and the furnace body, so that the stability of the bearing device during rotation can be further ensured through the stabilizing assembly, and the safety of the equipment is further ensured.
Drawings
FIG. 1 is a schematic view of the structure of an inventive fastener installation;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the structure of the tempering furnace;
FIG. 4 is a schematic structural view of a stabilizing assembly;
FIG. 5 is a schematic view of a carrier structure;
FIG. 6 is a schematic structural view of the telescoping assembly;
FIG. 7 is a schematic view of the structure at B in FIG. 6;
FIG. 8 is a schematic view of the structure of the first mount;
wherein the reference numerals are as follows: 100. a screw; 110. a nut; 111. a receiving chamber; 112. a limiting needle; 113. a second limiting plate; 114. a pressure spring; 115. a first limiting plate; 120. a reinforcement assembly; 121. a connection part; 122. a cover part; 123. a transition section; 124. a collision part; 200. a furnace body; 300. a carrier assembly; 310. a support shaft; 320. a support frame; 321. a first support ring; 322. a second support ring; 330. a fixed rod; 340. a hopper; 400. a stabilizing assembly; 410. a first stabilizing ring; 420. a second stabilizing ring; 430. a fixed cover; 440. an upper stabilizing block; 450. a lower stabilizing block; 500. a movable member; 510. a second mounting groove; 520. fixing the limiting piece; 521. a third limiting member; 530. a guide groove; 600. a fixing member; 610. a first mounting frame; 611. a guide rail; 612. an arc-shaped portion; 613. a support block; 614. a return spring; 620. a movable limiting piece; 621. a first limiting member; 622. a second limiting piece; 623. a clamping piece; 630. a guide member; 640. a clamping column; 700. a mounting cavity.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following description of the embodiments of the present invention is provided with reference to the accompanying drawings:
example 1:
referring to fig. 1 and 2, the present embodiment provides a fastener for nuclear power engineering, including:
a screw 100 having a head at one end;
a nut 110 screw-fitted with the other end of the screw 100;
the workpiece to be fastened is provided with a counter bore for sinking into the nut 110, the nut 110 is provided with a reinforcing component 120, and the reinforcing component 120 is abutted against the side wall of the counter bore.
The screw 100 is provided with a head at one end and a nut 110 at the other end by screw-fitting. The workpiece is provided with a counterbore for sinking the nut 110. The nut 110 is provided with the reinforcing component 120, and the reinforcing component 120 can limit the movement of the nut 110 through the interference with the hole forming wall, so that the loosening is prevented.
The reinforcement assembly 120 includes:
a connection portion 121 screwed to an end of the screw 100 where the nut 110 is located and covering an end surface and a part of side surfaces of the nut 110:
a cover portion 122 extending from the connection portion 121 and covering the remaining side surface of the nut 110;
an abutting portion 124 abutting against a side wall of the counterbore;
a transition portion 123 connecting the cover portion 122 and the abutting portion 124;
the covering portion 122, the abutting portion 124, and the transition portion 123 form a U-shaped structure, and the U-shaped structure has elasticity. The connection portion 121 has a cover-like structure, and covers the nut 110 while the screw 100 is screw-engaged. The covering portion 122 extends from the connecting portion 121 and is connected to the transition portion 123, and a connection portion between the covering portion 122 and the transition portion 123 is a first bend. The transition portion 123 is connected to the abutting portion 124 and the connecting portion is a second bending, so that the covering portion 122, the transition portion 123 and the abutting portion 124 form a U-shaped structure. After installation, the first bending is abutted against the screw rod 100, and the second bending is abutted against the corner of the junction of the bottom surface and the side surface of the counter bore, so that the movement of the nut 110 is limited, and the nut 110 is prevented from loosening.
The part of connecting portion 121, which covers the side face of nut 110, is provided with a containing cavity 111, the nut 110 is provided with a through hole corresponding to the containing cavity 111, a limiting needle 112 is arranged in the containing cavity 111, a first limiting plate 115 is arranged on the side wall of the containing cavity 111, a second limiting plate 113 is arranged on the limiting needle 112, a pressure spring 114 is arranged between the first limiting plate 115 and the second limiting plate 113, and the pressure spring can push the limiting embedding through hole to be in interference with screw 100.
The limiting pin 112 is disposed in the accommodating cavity 111 and has one end extending out of the mounting cavity 700, and the end of the limiting pin can extend into the through hole of the nut 110 through the pressure spring 114, so that the tip of the limiting pin 112 can be embedded into the thread gap of the screw 100, thereby further limiting the movement of the nut 110 and preventing loosening.
Example 2:
the embodiment provides a manufacturing method of a fastener for nuclear power engineering, which comprises the following steps:
s1: selecting raw materials;
s2: treating the oxide on the surface of the raw material;
s3: pickling the treated raw materials by a pickling device;
s4: washing and drying the pickled raw materials, and then processing and forming;
s5: tempering the processed and formed fastener through a tempering furnace;
s6: performing rust prevention on the fastener subjected to tempering treatment;
s7: and (5) quality inspection.
In step S5, the tempering furnace includes:
a furnace body 200;
a carrying device disposed within the furnace body 200 for carrying fasteners;
a heating device for heating the inside of the furnace body 200;
the bearing device is rotatably arranged in the furnace body 200, and the heating device is arranged on the side wall of the furnace body 200.
The middle part of the furnace body 200 is provided with a bearing component 300, and the side wall of the interior of the furnace body 200 is provided with a heating component. The workpiece placed within the carrier assembly 300 can be thermally tempered by the heating assembly. The rotating bearing assembly 300 can ensure the uniformity of heating of the workpiece and the stability of quality.
Example 3:
the present embodiment provides a method for manufacturing a fastener for nuclear power engineering, which includes the following technical features in addition to the technical features of the above embodiment.
Referring to fig. 2 and 4, the carrier assembly 300 includes:
a support shaft 310 disposed at the center of the carrier assembly 300;
a supporting frame 320 disposed on the supporting shaft 310;
a hopper 340 disposed on the support frame 320;
the support frame 320 is provided with a plurality of hoppers 340 which are arranged on the support shaft 310 at equal intervals and form a multi-layer structure on the support frame 320, the hoppers 340 are of a fan-shaped structure, the plurality of hoppers 340 are surrounded on the single-layer support frame 320 by taking the support shaft 310 as the center to form an annular structure, the support frame 320 comprises a first support ring 321 and a second support ring 322, the first support ring 321 and the second support ring 322 are connected through a fixing rod 330, the first support ring 321 is fixed on the support shaft 310, the second support ring 322 and the first support ring 321 are on the same plane and have a diameter larger than that of the first support ring 321,
the fixing rod 330 is provided with a plurality of fixing rods and equally divides the space between the first support ring 321 and the second support ring 322 into a plurality of sector areas, the center of the sector areas is provided with a support assembly, and the hopper 340 is arranged on the support assembly.
One end of the support shaft 310 extends to the outside of the furnace body 200 and drives the support shaft 310 to rotate by a motor, thereby driving the support frame 320 arranged on the support shaft 310 to rotate and the hopper 340 arranged on the support frame 320 to rotate. The supporting frame 320 is provided with a plurality of supporting shafts 310 which are equally spaced in the vertical direction, thereby constituting a multi-layered structure. The hoppers have a fan-shaped structure, and a plurality of hoppers 340 are formed in a ring-shaped structure around the single-layered support frame 320 by centering around the support shaft 310.
The support frame 320 is a ring-shaped structure formed by a first support ring 321 and a second support ring 322, and a fixing rod 330 for equally dividing the space between the first support ring 321 and the second support ring 322 into a plurality of sector areas. The fixing lever 330 is provided with a support assembly supporting the hopper 340. Stability of the hopper 340 can be guaranteed through the supporting component, and shaking of the hopper 340 in the rotation process is reduced.
Example 4:
the present embodiment provides a method for manufacturing a fastener for nuclear power engineering, which includes the following technical features in addition to the technical features of the above embodiment.
Referring to fig. 5 and 6, the support assembly includes:
a fixing member 600 disposed on a center line of the sector area and having one end connected to the first support ring 321 and the other end connected to the second support ring 322;
a movable member 500 disposed at the bottom of the hopper 340 and movable along the fixed member 600;
the fixed member 600 is provided with a first mounting groove, the movable member 500 is provided with a second mounting groove 510, the first mounting groove is opposite to the second mounting groove 510 and forms a mounting cavity 700, a telescopic component is arranged in the mounting cavity 700,
the surface of the fixing member 600 where the first installation groove is opened is provided with a guide member 630, and the surface of the moving member 500 where the second installation groove 510 is opened is provided with a guide groove 530 which is matched with the guide member 630.
The fixing member 600 is fixed to the first support ring 321 and the second support ring 322, and the movable member 500 is fixed to the bottom of the hopper 340. The movable member 500 moves along the fixed member 600 so that the hopper 340 can be drawn out from the support frame 320, facilitating the taking and placing of the workpieces in the hopper 340.
A first mounting groove is provided on a side of the fixed member 600 facing the movable member 500, and a second mounting groove 510 is provided on a side of the movable member 500 facing the fixed member 600. The fixing member 600 is fastened with the movable member 500 such that the first and second mounting grooves 510 are combined to form the mounting cavity 700. The telescopic components are arranged in the installation cavity 700, so that the movement of the hopper 340 can be buffered, and the stability of the whole structure is improved. The cooperation of the guide 630 and the guide groove 530 can ensure the stability of the direction of the movable member 500 when moving on the fixed member 600, preventing the movable member 500 from being separated.
Example 5:
the present embodiment provides a method for manufacturing a fastener for nuclear power engineering, which includes the following technical features in addition to the technical features of the above embodiment.
Referring to fig. 6 and 7, the telescopic assembly includes:
a first mounting bracket 610 disposed within the first mounting slot and extending to the second mounting slot 510;
a second mounting bracket disposed within the second mounting slot 510 and extending to the first mounting slot;
a movable stopper 620 disposed on the first mounting frame 610 and movable along the first mounting frame 610;
a fixed stopper 520 disposed on the second mounting frame and capable of interfering with the movable stopper 620;
the first mounting frame 610 and the second mounting frame are arranged in a staggered mode, the movable limiting part is arranged on one face of the first mounting frame 610, which faces the second mounting frame, the fixed limiting part 520 is arranged on one face of the second mounting frame, which faces the first mounting frame 610, so that the movable limiting part 620 and the fixed limiting part 520 are arranged on the same plane, the guide rail 611 is arranged on the first mounting frame 610, and the movable limiting part 620 is arranged on the guide rail 611 and can move along the guide rail 611.
The first mounting frame 610 is disposed in the first mounting groove and extends into the second mounting groove 510 such that it is suspended from the view of the second mounting groove 510. The second mounting frame is disposed in the second mounting groove 510 and extends into the first mounting groove such that it is suspended from the view of the first mounting groove. The first mounting frame 610 is offset from the second mounting frame. The first mounting frame 610 is provided with a guide rail 611, the guide rail 611 is provided with a movable limiting member 620, the second mounting frame is provided with a fixed limiting member 520, and the movable limiting member 620 and the fixed limiting member 520 can mutually collide, so that the movement of the hopper 340 is buffered.
Example 6:
the present embodiment provides a method for manufacturing a fastener for nuclear power engineering, which includes the following technical features in addition to the technical features of the above embodiment.
Referring to fig. 7 and 8, the movable stopper 620 includes:
a moving block disposed on the guide rail 611 and capable of moving along the guide rail 611;
the first limiting part is arranged on the moving block;
the second limiting part is arranged on the moving block, and the angle between the second limiting part and the first limiting part is at least 90 degrees;
the fixed stopper 520 includes:
a fixing block fixed on the second mounting frame;
the third limiting part is arranged on the fixed block;
one end of the guide rail 611 is provided with an arc-shaped part 612, a clamping piece 623 is arranged on the moving block, a clamping post 640 which can be abutted against the clamping piece 623 is arranged on one side of the arc-shaped part 612, the moving block is rotatably arranged on the guide rail 611, a supporting block 613 is arranged on the first mounting frame 610, a reset spring 614 is arranged on the supporting block 613, and one end of the reset spring 614 is connected with the moving block.
The movable stopper 620 includes a moving block on which a first stopper portion and a second stopper portion are provided, and is rotatable on the guide rail 611, thereby changing positions of the first stopper portion and the second stopper portion. The fixed block is fixed on the second mounting bracket, is provided with third spacing portion on the fixed block, and third spacing portion can be contradicted with first spacing portion or second spacing portion.
Normally, the third limiting portion abuts against the first limiting portion, and when the fixed limiting member 520 moves along with the hopper 340, the moving block can be driven to move on the guiding rail 611, so that the return spring 614 is stretched, and the movement of the hopper 340 is buffered.
When the hopper 340 is further pulled out, the moving block rotates to rotate the first limiting portion when moving to the arc portion 612, the first limiting portion is separated from the third limiting portion, the second limiting portion rotates to make it in the same straight line with the first limiting portion, and meanwhile, the blocking piece 623 is made to abut against the blocking post 640, so that the moving block is kept in the current state. At this point, the pull-out of the hopper 340 is no longer restricted, facilitating movement of the hopper 340.
When the hopper 340 retreats, the third limiting portion impacts the second limiting portion to move the moving block out of the arc portion 612, the moving block rotates to separate the second limiting portion from the first limiting portion, and the first limiting portion rotates to be in the same straight line with the third limiting portion and is in conflict with the third limiting portion, so that the whole structure is restored to the normal state.
Example 7:
the present embodiment provides a method for manufacturing a fastener for nuclear power engineering, which includes the following technical features in addition to the technical features of the above embodiment.
Referring to fig. 3 and 4, a stabilizing assembly 400 is disposed between the support shaft 310 and the furnace body 200, and the stabilizing assembly 400 includes:
a fixing ring disposed on the support shaft 310;
a first stabilizing ring 410 sleeved on the supporting shaft 310, and the fixing ring is rotatably disposed on the first stabilizing ring 410;
a second stabilizing ring 420 disposed on the furnace body 200 and sleeved on the first stabilizing ring 410;
a support assembly interposed between the first stabilizing ring 410 and the second stabilizing ring 420;
the support assembly includes a support column, an upper stabilizing block 440, and a lower stabilizing block 450, one end of the support column is connected to the first stabilizing ring 410, the other end is connected to the upper stabilizing block 440, the upper stabilizing block 440 is abutted against the lower stabilizing block 450, the lower stabilizing block 450 is abutted against the second stabilizing ring 420,
the stabilizing assembly 400 further includes a fixing cover 430 surrounding the first and second stabilizing rings 410 and 420, the upper and lower stabilizing blocks 440 and 450 are rotatably coupled to the inner wall of the fixing cover 430 through a rotation shaft,
the upper stabilizing block 440 includes first abutting ends respectively disposed at both sides and first protruding parts protruding toward the lower stabilizing block 450, the lower stabilizing block 450 includes second abutting sections respectively disposed at both sides and second protruding parts protruding toward the upper stabilizing block 440,
the upper stabilizing block 440 and the lower stabilizing block 450 are arranged in a staggered manner, the first protruding part is arranged between the two lower stabilizing blocks 450, the second protruding part is arranged between the two upper stabilizing blocks 440, and the rotating shafts of the upper stabilizing blocks 440 and the lower stabilizing blocks 450 are arranged on the middle line.
The upper and lower stabilizing blocks 440 and 450 can be rotated. When the upper stabilizing block 440 is inclined to make the first sinking other side too high, one side of the lower stabilizing block 450 corresponding to the sinking one side is also sunk, and the other side of the lower stabilizing block 450 is lifted, so that the upper stabilizing one side corresponding to the lifting one side of the lower stabilizing block 450 is lifted and the other side of the upper stabilizing block is sunk, thus the lifting sides and the sinking sides of the two adjacent upper stabilizing blocks 440 are opposite, the stress of the whole structure is uniform, and the stability of the supporting shaft 310 is ensured.
The above embodiments are only preferred embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art based on the above embodiments without making any inventive effort shall fall within the scope of the present invention, so: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (10)
1. A fastener for nuclear power engineering, comprising:
a screw (100) having a head at one end;
a nut (110) which is in threaded engagement with the other end of the screw (100);
the fastening device comprises a nut (110), wherein a countersink used for sinking into the nut (110) is arranged on a fastened workpiece, a reinforcing component (120) is arranged on the nut (110), and the reinforcing component (120) is abutted to the side wall of the countersink.
2. The fastener for nuclear power engineering according to claim 1, wherein the reinforcement assembly (120) includes:
a connecting part (121) which is in threaded connection with one end of the screw (100) where the nut (110) is located and covers the end face and part of the side face of the nut (110):
a covering part (122) extending from the connecting part (121) and covering the remaining side surface of the nut (110);
an abutting portion (124) abutting against a side wall of the counterbore;
a transition section (123) that connects the cover section (122) and the interference section (124);
wherein, cover portion (122), conflict portion (124) and transition portion (123) constitute U-shaped structure, U-shaped structure possesses elasticity.
3. The fastener for nuclear power engineering according to claim 2, wherein the connecting portion (121) is provided with a receiving cavity (111) at a portion covering a side surface of the nut (110), the nut (110) is provided with a through hole corresponding to the receiving cavity (111),
be equipped with spacing needle (112) in holding chamber (111), be equipped with first limiting plate (115) on the lateral wall that holds chamber (111), be provided with second limiting plate (113) on spacing needle (112), be provided with pressure spring (114) between first limiting plate (115) and second limiting plate (113), pressure elasticity can promote in the spacing embedding through-hole with screw rod (100) conflict.
4. A method of manufacturing the fastener for nuclear power engineering according to any one of claims 1 to 3, comprising the steps of:
s1: selecting raw materials;
s2: treating the oxide on the surface of the raw material;
s3: pickling the treated raw materials by a pickling device;
s4: washing and drying the pickled raw materials, and then processing and forming;
s5: tempering the processed and formed fastener through a tempering furnace;
s6: performing rust prevention on the fastener subjected to tempering treatment;
s7: and (5) quality inspection.
5. The method for manufacturing a fastener for nuclear power engineering according to claim 4, wherein in the step S5, the tempering furnace includes:
a furnace body (200);
the bearing device is arranged in the furnace body (200) and is used for bearing the fastener;
a heating device for heating the inside of the furnace body (200);
the bearing device is rotatably arranged in the furnace body (200), and the heating device is arranged on the side wall of the furnace body (200).
6. The method of manufacturing a fastener for nuclear power engineering according to claim 5, wherein the carrier assembly (300) includes:
a support shaft (310) disposed at the center of the carrier assembly (300);
a support frame (320) disposed on the support shaft (310);
a hopper (340) placed on the support frame (320);
wherein the supporting frame (320) is provided with a plurality of supporting shafts (310) which are equidistantly arranged, a multi-layer structure is formed on the supporting frame (320), the hoppers (340) are of fan-shaped structures, the plurality of hoppers (340) are surrounded on the single-layer supporting frame (320) by taking the supporting shafts (310) as the center,
the supporting frame (320) comprises a first supporting ring (321) and a second supporting ring (322), the first supporting ring (321) and the second supporting ring (322) are connected through a fixing rod (330), the first supporting ring (321) is fixed on the supporting shaft (310), the second supporting ring (322) and the first supporting ring (321) are arranged on the same plane, the diameter of the second supporting ring is larger than that of the first supporting ring (321),
the fixed rod (330) is provided with a plurality of and separates the space equidistance between first support ring (321) and second support ring (322) into a plurality of fan-shaped areas, the center in fan-shaped area is provided with supporting component, the hopper (340) is arranged on the supporting component.
7. The method of manufacturing a fastener for nuclear power engineering according to claim 6, wherein the assembly comprises:
a fixing member (600) disposed on a center line of the sector area and having one end connected to the first support ring (321) and the other end connected to the second support ring (322);
a movable member (500) disposed at the bottom of the hopper (340) and movable along the fixed member (600);
wherein the fixed part (600) is provided with a first mounting groove, the movable part (500) is provided with a second mounting groove (510), the first mounting groove is opposite to the second mounting groove (510) in opening and forms a mounting cavity (700), a telescopic component is arranged in the mounting cavity (700),
the surface of the fixed piece (600) where the opening of the first mounting groove is located is provided with a guide piece (630), and the surface of the movable piece (500) where the opening of the second mounting groove (510) is located is provided with a guide groove (530) matched with the guide piece (630).
8. The method of manufacturing a fastener for nuclear power engineering according to claim 7, wherein the telescopic assembly includes:
a first mounting bracket (610) disposed within the first mounting slot and extending to the second mounting slot (510);
a second mounting bracket disposed within the second mounting slot (510) and extending to the first mounting slot;
a movable stopper (620) which is disposed on the first mounting frame (610) and is movable along the first mounting frame (610);
a fixed stopper (520) disposed on the second mounting frame and capable of interfering with the movable stopper (620);
wherein the first mounting frame (610) and the second mounting frame are arranged in a staggered manner, the movable limit is arranged on one surface of the first mounting frame (610) facing the second mounting frame, the fixed limit part (520) is arranged on one surface of the second mounting frame facing the first mounting frame (610), so that the movable limit part (620) and the fixed limit part (520) are arranged on the same plane,
the first mounting frame (610) is provided with a guide rail (611), and the movable limiting piece (620) is arranged on the guide rail (611) and can move along the guide rail (611).
9. The method of manufacturing a fastener for nuclear power engineering according to claim 8, wherein the movable stopper (620) includes:
a moving block which is placed on the guide rail (611) and is movable along the guide rail (611);
the first limiting part is arranged on the moving block;
the second limiting part is arranged on the moving block, and the angle between the second limiting part and the first limiting part is at least 90 degrees;
the fixed stop (520) includes:
a fixing block fixed on the second mounting frame;
the third limiting part is arranged on the fixed block;
wherein one end of the guide rail (611) is provided with an arc-shaped part (612), the moving block is provided with a clamping piece (623), one side of the arc-shaped part (612) is provided with a clamping column (640) which can be abutted against the clamping piece (623), the moving block is rotatably arranged on the guide rail (611),
the first mounting frame (610) is provided with a supporting block (613), the supporting block (613) is provided with a reset spring (614), and one end of the reset spring (614) is connected with the card moving block.
10. The tempering furnace according to claim 6, wherein a stabilizing assembly (400) is provided between the support shaft (310) and the furnace body (200), the stabilizing assembly (400) comprising:
a fixed ring disposed on the support shaft (310);
the first stabilizing ring (410) is sleeved on the supporting shaft (310) and the fixing ring is rotatably arranged on the first stabilizing ring (410);
the second stabilizing ring (420) is arranged on the furnace body (200) and sleeved on the first stabilizing ring (410);
a support assembly interposed between the first stabilizing ring (410) and the second stabilizing ring (420);
wherein the support assembly comprises an upper stabilizing block (440) and a lower stabilizing block (450), the upper stabilizing block (440) is abutted against the lower stabilizing block (450), the lower stabilizing block (450) is abutted against the second stabilizing ring (420),
the stabilizing assembly (400) further comprises a fixed cover (430) surrounding the first stabilizing ring (410) and the second stabilizing ring (420), the upper stabilizing block (440) and the lower stabilizing block (450) are rotatably connected to the inner wall of the fixed cover (430) through rotating shafts,
the upper stabilizing block (440) comprises a first abutting end respectively arranged at two sides and a first protruding part protruding towards the lower stabilizing block (450), the lower stabilizing block (450) comprises a second abutting section respectively arranged at two sides and a second protruding part protruding towards the upper stabilizing block (440),
the upper stabilizing blocks (440) and the lower stabilizing blocks (450) are arranged in an annular dislocation mode, the first protruding portions are arranged between the two lower stabilizing blocks (450), the second protruding portions are arranged between the two upper stabilizing blocks (440), and rotating shafts of the upper stabilizing blocks (440) and the lower stabilizing blocks (450) are arranged on a central line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310401172.9A CN116428260B (en) | 2023-04-12 | 2023-04-12 | Fastener for nuclear power engineering and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310401172.9A CN116428260B (en) | 2023-04-12 | 2023-04-12 | Fastener for nuclear power engineering and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN116428260A true CN116428260A (en) | 2023-07-14 |
| CN116428260B CN116428260B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310401172.9A Active CN116428260B (en) | 2023-04-12 | 2023-04-12 | Fastener for nuclear power engineering and manufacturing method thereof |
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| CN114738364A (en) * | 2022-04-02 | 2022-07-12 | 浙江中通汽车零部件有限公司 | Bearing nut with bearing clearance accurate adjustment and automatic anti-loosening and locking functions |
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| CN102072234A (en) * | 2010-11-19 | 2011-05-25 | 浙江高强度紧固件有限公司 | Production process of nuclear bolt |
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| Publication number | Publication date |
|---|---|
| CN116428260B (en) | 2023-10-31 |
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