CN106812776B - Heavy nut and heavy nut assembly that difficult rupture of screw rod - Google Patents
Heavy nut and heavy nut assembly that difficult rupture of screw rod Download PDFInfo
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- CN106812776B CN106812776B CN201710059108.1A CN201710059108A CN106812776B CN 106812776 B CN106812776 B CN 106812776B CN 201710059108 A CN201710059108 A CN 201710059108A CN 106812776 B CN106812776 B CN 106812776B
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- elastic ring
- nut
- gasket
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- screw rod
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- 238000012856 packing Methods 0.000 claims description 12
- 241001391944 Commicarpus scandens Species 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
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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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
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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
- F16B37/00—Nuts or like thread-engaging members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention relates to a heavy nut with a screw rod not easy to break, which comprises a nut body and a gasket matched with the nut body, wherein the nut body is provided with a screw hole for the screw rod to pass through, the gasket is provided with a gasket hole for the screw rod to pass through, the heavy nut further comprises an elastic ring embedded in the gasket hole, two ends of the elastic ring along the axial direction are respectively arranged as a first end and a second end, one end of the elastic ring close to the nut body is the first end, the inner diameter of the elastic ring is larger than the diameter of the screw rod, the outer diameter of the elastic ring is smaller than the aperture of the gasket hole, the distance from the first end to the second end of the elastic ring is larger than the length of the gasket hole, and when the elastic ring is axially jacked, the inner wall of the. After the technical scheme of the invention is adopted, the screw rod has the advantages of convenience in processing, manufacturing and assembling and capability of reducing screw rod breakage.
Description
Technical Field
The invention relates to a heavy nut with a screw not easy to break and a heavy nut assembly.
Background
Nuts are a very common fastening connection, usually used in conjunction with bolts or screws. There is a class of nut on the market, and it includes the nut body and rotationally sets up the packing ring on the nut body, and at the in-process that the nut was screwed up, the nut body can not direct and treat the accessory contact of fastening, can avoid the wearing and tearing of nut body to the accessory. For example, in the Chinese utility model patent with the granted publication number CN 204458762U, named as "a new type nut", discloses a novel nut, which comprises a body, wherein the body is a hollow cylinder with two open end parts at two ends in the axial direction, it also comprises a cover body and a movable gasket, wherein the cover body is a hollow cylinder with an opening-shaped axial end, the cover body is covered outside the axial first end port of the body, the movable gasket is arranged on the axial second end port of the body, the upper part of the body is concavely provided with an annular accommodating concave cavity communicated with the hollow cavity of the body, the end part of the opening end of the cover body extends into the annular accommodating concave cavity, and the radial second end of the body extends to form a reducing mounting ring which extends into the movable gasket, and the reducing mounting ring is riveted in the movable gasket.
When the conventional nut is used in an automobile tire bolt assembly, after long-time use, large shearing stress is formed at the contact position of a screw rod and the opening of a nut body, so that the screw rod is broken. Therefore, in a Chinese utility model patent with an authorization publication number of CN 204591947U, entitled "novel anti-breaking rod anti-loosening tire nut", a novel anti-breaking rod anti-loosening tire nut is disclosed, which comprises a nut body and a washer; an elastic cushion ring is arranged between the nut body and the washer in a cushioning mode; a first flange corresponding to an inner hole of the elastic backing ring is formed on the end face of the nut body, the peripheral surface of the first flange is a first outer conical surface which is tapered from a fixed end to a free end, a first inner conical surface matched with the first outer conical surface is formed on the edge of the inner hole or the inner hole of the elastic backing ring, and the maximum diameter of the first inner conical surface is between the minimum diameter and the maximum diameter of the first outer conical surface; the elastic backing ring is formed with a second flange extending into the inner hole of the gasket, the peripheral surface of the second flange is a second outer conical surface which is gradually thinned from a fixed end to a free end, a second inner conical surface matched with the second outer conical surface is formed at the edge of the inner hole or the inner hole of the gasket, and the maximum diameter of the second inner conical surface is positioned between the minimum diameter and the maximum diameter of the second outer conical surface.
In the nut of this patent, when the nut body locks, the first interior conical surface and the second external conical surface of elasticity backing ring atress simultaneously and partly offset, cause the elasticity backing ring to be difficult to warp, are difficult to disperse the effort of screw rod effectively, for this reason, need set up the annular cavity in the elasticity backing ring, and in actual production, the annular cavity is difficult to process, and consequently, the structure of this kind of nut still remains to be improved.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
Disclosure of Invention
The invention aims to provide a heavy nut which can reduce the breakage of a screw rod and is convenient to process and manufacture and the screw rod is not easy to break.
another object of the present invention is to provide a heavy nut assembly with which breakage of the screw can be reduced, which has an advantage of convenient assembly.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a heavy nut that difficult rupture of screw rod, including the nut body and with nut body complex packing ring, be equipped with the screw that supplies the screw rod to pass on the nut body, be equipped with the packing ring hole that supplies the screw rod to pass on the packing ring, still including inlaying the elastic ring of establishing in the packing ring hole, the elastic ring is established respectively to first end and second end along axial both ends, the one end that the elastic ring is close to the nut body is first end, the internal diameter of elastic ring is greater than the diameter of screw rod, the external diameter of elastic ring is less than the aperture in packing ring hole, the distance that the elastic ring was held from first end to the second is greater than the length in packing ring hole, when the elastic ring was pressed by the axial roof pressure, the inner wall of elastic ring takes place deformation and supports the top on the screw rod, the outer. .
A heavy nut with a screw rod not easy to break comprises a nut body and a gasket matched with the nut body, wherein a screw hole for the screw rod to pass through is arranged on the nut body, a gasket hole for the screw rod to pass through is arranged on the gasket, the heavy nut further comprises an elastic ring embedded in the gasket hole, the two ends of the elastic ring along the axial direction are respectively arranged as a first end and a second end, one end of the elastic ring close to the nut body is the first end, the inner diameter of the elastic ring is larger than the diameter of the screw rod, the outer diameter of the elastic ring is smaller than the aperture of the gasket hole, a supporting platform is formed on the inner wall of the gasket hole, a supporting surface is formed on the supporting platform, the first end of the elastic ring abuts against the supporting surface, one end of the gasket along the axial direction is a free end, the other end of the gasket is a connecting end corresponding to the nut body, the distance from the first end to the second end of the, the inner wall of the elastic ring deforms and abuts against the screw rod, and the outer wall of the elastic ring abuts against the gasket hole. .
In a preferred embodiment of the present invention, the support table is an annular support table.
In a preferred aspect of the present invention, the support base is integrally formed with the gasket.
In a preferred embodiment of the present invention, the second end of the elastic ring is formed with an annular support portion, and the free end of the gasket is formed with a groove corresponding to the annular support portion.
In a preferred embodiment of the present invention, the annular support portion is a wave washer, and the wave washer and the elastic ring are integrally formed.
As a preferable mode of the present invention, the nut body is provided with an annular flange, the connection end is connected to the annular flange through a riveting portion, an end surface of the annular flange close to the elastic ring is provided with a first annular protrusion and a second annular protrusion, the first annular protrusion and the second annular protrusion are concentrically arranged, and the gasket is provided with a first annular groove engaged with the first annular protrusion and a second annular groove engaged with the second annular protrusion.
The heavy nut component comprises a screw rod and a nut arranged on the screw rod in a matched mode, the nut comprises a nut body and a gasket matched with the nut body, a screw hole for the screw rod to penetrate through is formed in the nut body, a gasket hole for the screw rod to penetrate through is formed in the gasket, the heavy nut component further comprises an elastic ring embedded in the gasket hole, the two ends of the elastic ring in the axial direction are respectively arranged to be a first end and a second end, one end, close to the nut body, of the elastic ring is a first end, the inner diameter of the elastic ring is larger than the diameter of the screw rod, the outer diameter of the elastic ring is smaller than the aperture of the gasket hole, a supporting table is formed on the inner wall of the gasket hole, a supporting surface is formed on the supporting table, the first end of the elastic ring abuts against the supporting surface, one end, in the axial direction, of the gasket is a free end, the other end of the gasket is, the screw rod is provided with a thread section and a polished rod section without threads, the thread section is matched in a screw hole of the nut body, and when the elastic ring is axially jacked, the inner wall of the elastic ring deforms and is jacked on the polished rod section.
As a preferable mode of the present invention, the polished rod section is provided with a plurality of convex strips, the plurality of convex strips extend in an axial direction of the polished rod section, and the plurality of convex strips are uniformly arranged in a circumferential direction of the polished rod section.
After the technical scheme of the invention is adopted, along with the tightening of the nut body, when the elastic ring is axially jacked, the inner wall of the elastic ring deforms and is jacked on the screw rod, the action of dispersing the action of the screw rod is realized, the phenomenon that the screw rod is broken due to the fact that the stress of the contact part of the screw rod and the opening part of the nut body is too concentrated is effectively reduced, when the nut body is assembled, the elastic ring is directly sleeved into the screw rod, the nut body and the gasket are gradually pushed along the screw rod by screwing the nut body, when the elastic ring is jacked on the end face of a to-be-fastened piece, the nut body is continuously screwed, the elastic ring is gradually moved into the gasket hole of the gasket, and the inner wall of the elastic ring deforms and is jacked on the screw rod, and the nut has.
According to the other scheme, the structure of the traditional gasket is changed, the support table is ingeniously arranged on the inner wall of the gasket, the acting force of the elastic ring is dispersed to the support table, the support table plays a role in protecting the end face of the nut body, and the nut body is prevented from being scratched due to the fact that the elastic ring is in contact with the end face of the nut body.
By adopting the heavy nut component, the screw comprises the screw thread section and the polished rod section, when the nut body is locked, the inner wall of the elastic ring is abutted against the polished rod section, and the outer wall of the elastic ring is abutted against the gasket hole of the gasket, so that the force applied to the screw is partially transferred to the polished rod section, the phenomenon that the screw is broken due to the fact that the stress is excessively concentrated on the contact part of the screw and the opening part of the nut body is avoided, the stress concentration is not easy to occur on the polished rod section when the stress is applied, and the service life of the nut component can be prolonged.
drawings
FIG. 1 is a schematic structural view of a heavy nut according to the present invention;
FIG. 2 is a schematic structural view of a first embodiment of an elastic ring according to the present invention;
FIG. 3 is a schematic structural view of a second embodiment of the elastic ring according to the present invention;
FIG. 4 is a schematic structural view of a third embodiment of an elastic ring according to the present invention;
FIG. 5 is an exploded view of the heavy duty nut assembly of the present invention;
FIG. 6 is a schematic view of an assembled construction of the heavy duty nut assembly of the present invention;
FIG. 7 is a first usage state diagram of a fourth embodiment of the present invention;
FIG. 8 is a second state of use diagram of a fourth embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a fifth embodiment of the present invention;
In the figure:
10-nut body 11-screw hole
12-annular flange 13-first annular projection
14-second annular projection 20-gasket
21-free end 22-connecting end
23-first annular groove 24-second annular groove
25-groove seat 26-support table
30-elastic ring 31-first end
32-second end 33-annular support
34-antiskid stripe 50-screw
51-threaded segment 52-polished rod segment
53-Rib 60-to-be-fastened Member
70-lock washer 71-annular receiving groove
72-upper surface 73-lower surface
80-ring-shaped receiving groove
Detailed Description
In order to further explain the technical scheme of the invention, the following detailed description is combined with the accompanying drawings.
Referring to fig. 1 to 9, a heavy nut with a hard-to-break screw rod comprises a nut body 10 and a washer 20 engaged with the nut body 10, the nut body 10 is provided with a screw hole for a screw rod 50 to pass through, the washer 20 is provided with a washer hole for the screw rod 50 to pass through, the heavy nut further comprises an elastic ring 30 embedded in the washer hole, two ends of the elastic ring 30 along an axial direction are respectively provided with a first end 31 and a second end 32, one end of the elastic ring 30 close to the nut body 10 is the first end 31, an inner diameter of the elastic ring 30 is larger than a diameter of the screw rod 50, that is, an inner ring of the elastic ring 30 is larger than a major diameter of the screw rod 50, so that the elastic ring 30 can be smoothly sleeved on the screw rod 50, an outer diameter of the elastic ring 30 is smaller than a bore diameter of the washer hole, so that the elastic ring 30 can be smoothly inserted into the washer hole, a distance from the first end 31 to the second end 32 (a height of, when the elastic ring 30 is axially pressed, the inner wall of the elastic ring 30 is deformed to abut against the screw 50. The height of the elastic ring 30 and the length of the gasket hole are skillfully set to have a length difference, when the first end 31 and the second end 32 of the elastic ring 30 are stressed, the elastic ring 30 is pressed to enable the inner wall of the elastic ring 30 to deform towards the center of the gasket hole and to be pressed against the screw rod 50, and the outer wall of the elastic ring 30 is pressed against the gasket hole, so that the acting force applied to the screw rod 50 is partially dispersed to the elastic ring 30, and the fracture of the screw rod 50 is reduced.
A heavy nut with a screw rod not easy to break off comprises a nut body 10 and a gasket 20 matched with the nut body 10, wherein a screw hole for the screw rod 50 to pass through is arranged on the nut body 10, a gasket hole for the screw rod 50 to pass through is arranged on the gasket 20, the heavy nut further comprises an elastic ring 30 embedded in the gasket hole, a first end 31 and a second end 32 are respectively arranged at two ends of the elastic ring 30 along the axial direction, one end of the elastic ring 30 close to the nut body 10 is the first end 31, the inner diameter of the elastic ring 30 is larger than that of the screw rod 50, the outer diameter of the elastic ring 30 is smaller than that of the gasket hole, a supporting platform 26 is formed on the inner wall of the gasket hole, a supporting surface is formed on the supporting platform 26, the first end 31 of the elastic ring 30 abuts against the supporting surface, one end of the gasket 20 along the axial direction is a free end 21, the other end is a connecting end 22 corresponding to the nut body 10, the distance from the first end 31 to the second end 32, when the elastic ring 30 is axially pressed, the inner wall of the elastic ring 30 deforms and abuts against the screw 50, and the outer wall of the elastic ring 30 abuts against the gasket hole. The distance between the supporting surface and the end surface of the free end of the gasket 20 and the height of the elastic ring 30 are skillfully set to have a length difference, when the first end 31 and the second end 32 of the elastic ring 30 are stressed, the elastic ring 30 is pressed to enable the inner wall of the elastic ring 30 to deform towards the center of the gasket hole and abut against the screw rod 50, so that the acting force applied to the screw rod 50 is partially dispersed to the elastic ring 30, and the fracture of the screw rod 50 is reduced. Those skilled in the art can set the height difference according to the specifications of the nut body, the washer and the elastic ring, as long as the end face of the first end 31 of the elastic ring 30 is pressed to be at the same level as the end face of the free end 21 of the washer 20, the inner wall of the elastic ring 30 can be deformed and pressed against the screw 50, and the outer wall of the elastic ring 30 is pressed against the washer hole. In this embodiment, the structure of the conventional washer 20 is changed, the support platform 31 on the inner wall of the washer 20 supports the elastic ring 30, so as to prevent the first end 31 of the elastic ring 30 from directly contacting the nut body 10, effectively protect the nut body 10, and prolong the service life of the nut. In a preferred embodiment of the present invention, the support base 26 is an annular support base, and the support base 26 is integrally formed with the gasket 20.
In a preferred embodiment of the present invention, an annular support portion 33 is formed at the second end 32 of the elastic ring 30, and a groove seat 25 corresponding to the annular support portion 33 is formed at the free end 21 of the washer 20. The groove seat 25 is provided with a circumferential wall surface corresponding to the annular supporting portion 33, the diameter of the circumferential wall surface is slightly larger than that of the side wall of the annular supporting portion 33, the circumferential wall surface is limited corresponding to the annular supporting portion 33, the outward deformation of the whole elastic ring 30 is reduced when the elastic ring 30 is pressed, and the elastic ring 30 is enabled to deform inwards (the center of the elastic ring 30) better.
In a preferred embodiment of the present invention, the annular support portion 33 is a wave washer, and the wave washer is integrally formed with the elastic ring 30. The use of a corrugated gasket can serve three functions: 1. the anti-loosening effect can be achieved, and the nut body 10 and the washer 20 are prevented from loosening in the using process; 2. the arrangement of the corrugated gasket can ensure that the elastic ring 30 can be better deformed when being extruded; 3. when the nut body 10 is detached from the screw 50, the inner wall of the elastic ring 30 is released from the screw 50 by the elastic return action of the corrugated washer, so that the elastic ring 30 is conveniently detached.
As a preferred aspect of the present invention, the nut body 10 is provided with an annular flange 12, the connecting end 22 is connected to the annular flange 12 by a riveting portion, specifically, the connecting end 22 is riveted inward to form a riveting portion, so that the washer 20 can rotate relative to the nut body 10, the end surface of the annular flange 12 close to the elastic ring 30 is provided with a first annular protrusion 13 and a second annular protrusion 14, the first annular protrusion 13 and the second annular protrusion 14 are concentrically arranged, and the washer 20 is provided with a first annular groove 23 matched with the first annular protrusion 13 and a second annular groove 24 matched with the second annular protrusion 14. Through the arrangement of the first annular protrusion 13, the second annular protrusion 14, the first annular groove 23 and the second annular groove 24, the washer 20 is not easy to circumferentially displace relative to the nut body 10 while the washer 20 is ensured to rotate relative to the nut body 10, and the washer 20 and the elastic ring 30 are ensured to better disperse the acting force of the screw 50.
Referring to fig. 7 and 8, as a further improvement of the present invention, a lock washer 70 engaged with the groove seat 25 is further included, the lock washer 70 is in a tapered cylinder shape, a lower surface 73 of the lock washer 70 is an abutting surface (i.e., the lower surface 73) engaged with the groove seat 25, an annular receiving groove 71 is provided inside an upper surface 72 of the lock washer 70, the annular support portion 33 is received in the annular receiving groove 71, a distance between the upper surface 72 and the lower surface 73 of the lock washer 70 is not less than a groove depth of the groove seat 25, and in the embodiment, the distance between the upper surface 72 and the lower surface 73 is equal to the groove depth of the groove seat 25. With such a structure, the lock washer 70 can be ensured to have sufficient thickness to provide sufficient elastic force, so as to prevent the nut from loosening, and meanwhile, when the nut body 10 is detached from the screw 50, the lock washer 70 has sufficient resilience force, so that the elastic ring 30 can be separated from the washer 20, thereby facilitating the detachment of the elastic ring 30.
Referring to fig. 9, as a further improvement of the present invention, an annular receiving groove 80 is formed at one end of the support platform 26 where the gasket hole is provided, the first end 31 of the elastic ring 30 is riveted in the annular receiving groove 80 in a manner of being axially movable along the gasket hole, and the elastic ring 30 can move within a certain range along the gasket hole while deforming the first end 31 of the elastic ring 30 outward, so that the first end 31 is received in the annular receiving groove 80, and the elastic ring 30 can rotate relative to the gasket 20. With the structure, the elastic ring 30 can prevent the lock washer 70 from falling off, so that the elastic ring 30, the lock washer 70, the washer 20 and the nut body 10 form a kit, and the elastic ring 30 and the lock washer 70 are not easy to lose in the using process.
In the embodiment of the present invention, the outer diameter of the nut body 10 is 33mm, the outer diameter of the screw thread is 22mm, the thickness of the support base 26 is 2mm, the length of the washer hole is 12mm, the length of the elastic ring 30 in the axial direction is 11mm, and the depth of the annular support groove 71 is 2mm, which is mainly used in the wheel hub of the automobile. The heavy nut assembly comprises a screw rod 50 and a nut arranged on the screw rod 50, the nut comprises a nut body 10 and a gasket 20 matched with the nut body 10, a screw hole for the screw rod 50 to penetrate through is formed in the nut body 10, a gasket hole for the screw rod 50 to penetrate through is formed in the gasket 20, the heavy nut assembly further comprises an elastic ring 30 embedded in the gasket hole, a first end 31 and a second end 32 are respectively arranged at two ends of the elastic ring 30 along the axial direction, one end, close to the nut body 10, of the elastic ring 30 is a first end 31, the inner diameter of the elastic ring 30 is larger than that of the screw rod 50, the outer diameter of the elastic ring 30 is smaller than that of the gasket hole, a supporting table 26 is formed on the inner wall of the gasket hole, a supporting surface is formed on the supporting table 26, the first end 31 of the elastic ring 30 abuts against the supporting surface, one end, along the axial direction, of the gasket 20 is a free end 21, the other end of the gasket 20 is a connecting end 22 corresponding to the nut body 10, and the distance The screw 50 has a threaded section 51 and a unthreaded rod section 52, the threaded section 51 is fitted in the threaded hole of the nut body 10, when the elastic ring 30 is axially pressed, the inner wall of the elastic ring 30 is deformed to abut against the threaded rod section 52, and the outer wall of the elastic ring 30 abuts against the washer hole. The invention skillfully sets the structure of the screw 50, so that the elastic ring 30 acts on the polished rod section 52 of the screw 50, and the defect that the threaded section is concentrated in stress and is easy to break is overcome. In the embodiment, the length of the screw section 51 is 40mm, the length of the polish rod section 52 is 105mm, the length of the convex strip 53 is 20mm, and the outer diameter of the screw thread of the screw section 51 is 22 mm.
In a preferred embodiment of the present invention, the light bar section 52 is provided with a plurality of ribs 53, the plurality of ribs 53 extend in the axial direction of the light bar section 52, and the plurality of ribs 53 are uniformly arranged in the circumferential direction of the light bar section 52. Through setting up sand grip 53, increase the frictional force between polished rod section 52 and elastic ring 30, guarantee that the effort of screw rod 50 disperses to elastic ring 30 better.
When the invention is used, the screw 50 passes through the to-be-fastened piece 60, the elastic ring 30 is sleeved in the screw, the washer 20 and the nut body 10 are sleeved in the screw 50, the nut body 10 is screwed, the nut body 10 and the washer 20 are pushed in the screw 50 until the elastic ring 30 abuts against the to-be-fastened piece 60, the elastic ring 30 extends into the washer hole and abuts against the supporting table 31, the annular supporting part 33 is partially retracted into the groove seat 25, the nut is continuously screwed, one surface of the annular supporting part 33 of the elastic ring 30, which is close to the to-be-fastened piece, and the end surface of the free end 21 of the washer 20 are positioned on the same plane, meanwhile, the elastic ring 30 is pressed and deformed by the to-be-fastened piece 60, the elastic ring 30 is deformed and arched to abut against the polished rod section 32 of the screw 50, and the outer wall of the elastic ring 30 abuts against the washer hole.
The product form of the present invention is not limited to the embodiments and examples shown in the present application, and any suitable changes or modifications of the similar ideas should be made without departing from the patent scope of the present invention.
Claims (8)
1. the utility model provides a heavy nut of difficult rupture of screw rod, includes the nut body and with nut body complex packing ring, be equipped with the screw that supplies the screw rod to pass on the nut body, be equipped with the packing ring hole that supplies the screw rod to pass on the packing ring, its characterized in that: the nut also comprises an elastic ring embedded in the gasket hole, the two ends of the elastic ring along the axial direction are respectively arranged as a first end and a second end, one end of the elastic ring close to the nut body is the first end, the inner diameter of the elastic ring is larger than the diameter of the screw, the outer diameter of the elastic ring is smaller than the aperture of the gasket hole, a support table is formed on the inner wall of the gasket hole, a support surface is formed on the support table, the first end of the elastic ring is abutted against the support surface, one end of the gasket along the axial direction is a free end, the other end of the gasket is a connecting end corresponding to the nut body, the distance from the first end to the second end of the elastic ring is greater than the distance between the support surface and the end surface of the free end of the gasket, when the elastic ring is axially pressed, the inner wall of the elastic ring deforms and abuts against the screw rod, the outer wall of the elastic ring abuts against the gasket hole, and the second end of the elastic ring is provided with an annular supporting part, and the free end of the gasket is provided with a groove seat corresponding to the annular supporting part.
2. The heavy nut of claim 1, wherein: the supporting platform is an annular supporting platform.
3. The heavy nut with a unbreakable screw according to claim 2, wherein: the support platform and the gasket are integrally formed.
4. a heavy duty nut of claim 3 having a shank which is not frangible, characterized by: the annular supporting part is a corrugated gasket, the corrugated gasket and the elastic ring are integrally formed, an annular flange is arranged on the nut body, the connecting end is connected onto the annular flange through a riveting part, the annular flange is close to a first annular bulge and a second annular bulge are arranged on the end face of the elastic ring, the first annular bulge and the second annular bulge are concentrically arranged, and a first annular groove matched with the first annular bulge and a second annular groove matched with the second annular bulge are arranged on the gasket.
5. A heavy duty nut of claim 3 having a shank which is not frangible, characterized by: still include with slot seat complex lock washer, lock washer are awl tube-shape, the lower surface of lock washer be with slot seat complex butt face, the inboard of lock washer's upper surface is equipped with the annular and accomodates the groove, the annular supporting part is accomodate in the annular is accomodate the groove, and the distance between lock washer's upper surface and the lower surface is not less than the slot depth of slot seat.
6. The heavy nut with a unbreakable screw according to claim 5, wherein: one end of the support platform, which is arranged in the gasket hole, forms an annular receiving groove, and the first end of the elastic ring is riveted in the annular receiving groove in a mode of moving along the axial direction of the gasket hole.
7. Heavy nut assembly, including the screw rod and set the nut on the screw rod, the nut include the nut body and with nut body complex packing ring, be equipped with the screw that supplies the screw rod to pass on the nut body, be equipped with the washer hole that supplies the screw rod to pass on the packing ring, its characterized in that: the nut further comprises an elastic ring embedded in the washer hole, the two ends of the elastic ring along the axial direction are respectively provided with a first end and a second end, one end of the elastic ring close to the nut body is the first end, the inner diameter of the elastic ring is larger than the diameter of the screw, the outer diameter of the elastic ring is smaller than the aperture of the washer hole, a support table is formed on the inner wall of the washer hole, a support surface is formed on the support table, the first end of the elastic ring abuts against the support surface, one end of the washer along the axial direction is a free end, the other end of the washer is a connecting end corresponding to the nut body, the distance from the first end to the second end of the elastic ring is larger than the distance between the support surface and the end surface of the free end of the washer, the screw is provided with a threaded section and a polished rod section without threads, the threaded section is matched in the screw hole of the nut body, when the elastic ring is axially abutted, the inner wall of the elastic ring is, and the second end of the elastic ring is provided with an annular supporting part, and the free end of the gasket is provided with a groove seat corresponding to the annular supporting part.
8. The heavy-duty nut assembly of claim 7, wherein: the polished rod section is provided with a plurality of convex strips, the convex strips extend along the axial direction of the polished rod section, and the convex strips are uniformly distributed along the circumferential direction of the polished rod section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059108.1A CN106812776B (en) | 2017-01-23 | 2017-01-23 | Heavy nut and heavy nut assembly that difficult rupture of screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059108.1A CN106812776B (en) | 2017-01-23 | 2017-01-23 | Heavy nut and heavy nut assembly that difficult rupture of screw rod |
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| CN106812776A CN106812776A (en) | 2017-06-09 |
| CN106812776B true CN106812776B (en) | 2019-12-10 |
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| CN201710059108.1A Active CN106812776B (en) | 2017-01-23 | 2017-01-23 | Heavy nut and heavy nut assembly that difficult rupture of screw rod |
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| CN (1) | CN106812776B (en) |
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| DE10136829C1 (en) * | 2001-07-27 | 2003-04-17 | Nedschroef Plettenberg Gmbh | Combination nut with swiveling washer |
| CN203009529U (en) * | 2012-11-19 | 2013-06-19 | 泉州丰源机械有限公司 | Improved combined-type tire nut |
| CN203500233U (en) * | 2013-08-15 | 2014-03-26 | 广州豹驰汽配有限公司 | Reinforced radial positioning combined double-pad movable screw nut gasket assembly |
| CN203770356U (en) * | 2014-03-24 | 2014-08-13 | 世铠精密股份有限公司 | Locking device with locking tension indication function |
| CN105715654A (en) * | 2016-03-01 | 2016-06-29 | 朗福紧固科技（西安）有限公司 | Double-slotted self-locking nut |
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| US5597279A (en) * | 1995-03-06 | 1997-01-28 | R B & W Corporation | Wheel nut |
| CN201106611Y (en) * | 2007-11-08 | 2008-08-27 | 柯惠忠 | Orientation combined tire nut |
| CN201487000U (en) * | 2009-09-08 | 2010-05-26 | 卓宪法 | Novel tire nut |
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| CN104728248A (en) * | 2015-04-08 | 2015-06-24 | 扬州维邦园林机械有限公司 | Resilient pad |
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| Publication number | Publication date |
|---|---|
| CN106812776A (en) | 2017-06-09 |
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