CN210799672U - Riveting type check bolt assembly - Google Patents
Riveting type check bolt assembly Download PDFInfo
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- CN210799672U CN210799672U CN201921870388.5U CN201921870388U CN210799672U CN 210799672 U CN210799672 U CN 210799672U CN 201921870388 U CN201921870388 U CN 201921870388U CN 210799672 U CN210799672 U CN 210799672U
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- screw rod
- plastic deformation
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- screw
- ring
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Abstract
The utility model discloses a riveting formula check bolt subassembly, including the screw rod, the afterbody of screw rod is followed to the head direction of screw rod to plastic deformation ring sum nut has set gradually to the screw rod, and plastic deformation ring sum nut closely laminates, the nut with the screw rod meshing, plastic deformation ring can follow screw rod axial plastic deformation and with the screw rod realizes meshing locking. The utility model discloses a bolt assembly utilizes the plastic deformation of plastic deformation ring to lock the nut on the screw rod, can prevent effectively that the bolt is not hard up, plays locking effect, and plastic deformation ring closely laminates with the nut to closely mesh with the screw rod, can also play fine antidetonation effect, applicable in most of special equipment and environment, the practicality is strong.
Description
Technical Field
The utility model relates to a connecting piece, belonging to the technical field of mechanical connection and installation; in particular to a riveting type check bolt assembly.
Background
Bolts are common mechanical parts, being cylindrical threaded fasteners fitted with nuts. The fastening piece composed of a head part and a screw rod (a cylinder with external threads, and the end of the screw rod far away from the head part is a tail part) needs to be matched with a nut and is used for fastening and connecting two parts with through holes.
The bolt is widely applied in daily life and industrial production and manufacturing, in application, the bolt connecting piece can be loosened due to vibration, shaking and mutual stress action of a connecting part, the bolt loosening not only can influence the stability and relative fixing effect of the connecting part after being used for a long time, but also can cause the problems of fracture, falling and the like after loosening, so that safety accidents are caused, the potential safety hazards of bolt use are increased, and particularly, the requirements in the application of special equipment (such as airplanes, ships, high-speed rails and the like) with higher connection requirements in some special environments are more rigorous, the stability of the bolt is particularly important, but the existing bolt generally has no anti-loosening effect, or the bolt with the anti-loosening function has an unsatisfactory anti-loosening effect.
Disclosure of Invention
Based on above technical problem, the utility model provides a riveting formula check bolt subassembly to the unable locking or the relatively poor technical problem of locking effect of bolt in the past has been solved.
For solving the above technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a riveting formula check bolt subassembly, includes the screw rod, the screw rod has set gradually plastic deformation ring sum nut to the head direction of screw rod along the afterbody of screw rod, and plastic deformation ring sum nut closely laminates, the nut with the screw rod meshing, plastic deformation ring can follow screw rod axial plastic deformation and with the screw rod realizes meshing locking.
Based on the technical scheme, the circumferential surface of the tail part of the screw rod is also provided with a section structure for breaking the external thread of the screw rod, and the plastic deformation ring covers or partially covers the section structure.
Based on above technical scheme, the section structure is the recess that sets up along the screw rod axial.
Based on the technical scheme, the section structure is a notch groove arranged along the radial direction of the screw rod.
Based on the technical scheme, the section structure is a section axially arranged along the screw.
Based on the technical scheme, the inner diameter of the plastic deformation ring is 0.1-0.3 mm larger than the outer diameter of the screw.
Based on the technical scheme, the plastic deformation ring is made of high-quality carbon steel.
Based on the technical scheme, the plastic deformation ring comprises an annular deformation part, and a ring of annular positioning part is formed on the outer circumference of one end face of the deformation part.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the utility model discloses a bolt assembly utilizes the plastic deformation of plastic deformation ring to lock the nut on the screw rod, can prevent effectively that the bolt is not hard up, plays locking effect, and plastic deformation ring closely laminates with the nut to closely mesh with the screw rod, can also play fine antidetonation effect, applicable in most of special equipment and environment, the practicality is strong.
Drawings
FIG. 1 is a schematic view of a first construction of a clinch lock bolt assembly in which the plastic deformation of the plastic deformation ring is not generated;
FIG. 2 is a second structural schematic view of the clinch lock bolt assembly with the plastic deformation of the plastic deformation ring;
FIG. 3 is a partial cross-sectional view of the clinch lock bolt assembly showing plastic deformation of the plastic deformation ring;
FIG. 4 is a schematic structural view of a plastically deformable ring of the clinch check bolt assembly;
FIG. 5 is a schematic sectional view of the rivet type check bolt assembly with a notch groove;
FIG. 6 is a schematic sectional view of a riveted lock bolt assembly;
the reference numerals in the drawings denote: 1. a screw; 2. a plastically deformable ring; 3. a nut; 4. installing a station; 5. and (4) a cross-sectional structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it should be understood that the terms "one end", "the other end", "both ends", "between", "middle part", "lower part", "upper end", "lower end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
FIG. 1 is a schematic view of a first construction of a clinch lock bolt assembly in which the plastic deformation of the plastic deformation ring is not generated; FIG. 2 is a second structural schematic view of the clinch lock bolt assembly with the plastic deformation of the plastic deformation ring; fig. 3 is a partial cross-sectional view of a clinch lock bolt assembly showing plastic deformation of the plastic deformation ring.
The riveting type anti-loose bolt assembly shown in fig. 1-3 at least comprises a screw rod 1, wherein the screw rod 1 is a screw rod structure of the conventional technology, the length, the diameter and the material of the screw rod 1, as well as the major diameter, the minor diameter, the intermediate diameter, the thread pitch, the lead, the thread form angle, the thread lead angle and the like of the threads on the screw rod can be designed according to actual needs, and the screw rod with the size of a standard part can be selected, and the material, the size, the parameters and the like of the screw rod 1 are not specifically limited. One end of the screw 1 is a screw head which can be an (inner and outer) quadrangular head, an (inner and outer) hexagonal head, an (inner and outer) dodecagonal head and the like, and the other end is a screw tail.
And a plastic deformation ring 2 and a nut 3 are sequentially arranged on the screw rod of the riveting type anti-loose bolt assembly along the tail part of the screw rod 1 to the head part of the screw rod 1. The nut 3 is a matching part meshed with the screw rod 1, the nut and the standard nut in the prior art can be adopted, and the specific size and parameters can be obtained by the size parameters of the screw rod 1, so the material, size, parameters and the like of the nut 3 are not limited. As the core component of the riveting type anti-loose bolt component, the plastic deformation ring 2 is at least a circular ring structure capable of generating plastic deformation, when the nut 3 is installed in place, the side surface opposite to the nut 3 is tightly attached to the side surface of the nut 3, in addition, the plastic deformation ring 2 is extruded, so that the length direction of the plastic deformation ring is subjected to plastic deformation, the deformation is generated, the length is shortened, the deformation is utilized to fill the thread of the inner side screw rod 1, the deformed plastic deformation ring is tightly meshed with the external thread of the screw rod 2, and the nut 3 is locked in the length direction of the screw rod 1.
With reference to fig. 1-3 and the above, when the rivet-type check bolt assembly is used, the screw 1 is first inserted through the installation station 4, the installation station 4 is as shown in fig. 1, and after insertion, screwing a nut 3 on a screw rod 1 and pressing an installation station 4, after the completion, sleeving a plastic deformation ring 2 on the screw rod 1 and pushing the plastic deformation ring 2 to enable one end surface to be pressed on the side surface of the nut 3, after the pressing, extruding the plastic deformation ring 2 by utilizing a pressurizing machine, a bolt loading and unloading tool, a heavy object and the like to enable the length of the plastic deformation ring 2 along the axial direction of the screw rod 1 to be extruded and deformed and shortened, and the nut 3 is extruded in the shortening process, after the deformation is finished, one end of the plastic deformation ring 2 is tightly attached to the nut 3, meanwhile, the inner side surface of the nut, which is in contact with the screw rod 1, is extruded and deformed to form a thread surface which is meshed with the thread of the screw rod 1, and is tightly meshed with the thread of the screw rod 1, so that the nut 3 is locked on the screw rod 1.
Above riveting formula check bolt subassembly utilizes the plastic deformation of plastic deformation ring 2 for it realizes closely meshing with screw rod 1, thereby die nut 3 lock, screw rod 1 and nut 3 are connected firmly inseparably, can effectively prevent relative not hard up of screw rod 1 and nut 3, play the locking effect of bolt subassembly, the security performance of bolted connection has been improved, secondly, based on the plastic deformation of plastic deformation ring 2, its inseparable laminating with screw rod 1 can not be resumeed, therefore, when screw rod 1 and nut 3 received vibrations, it still can keep under the two connected state unchangeable circumstances, prevent that vibrations from arousing screw rod 1 and nut 3's relative displacement or drop, play excellent effect, this kind of more prior art bolt subassembly can't realize.
In some embodiments, the inner diameter of the plastically deformable ring 2 is 0.1-0.3 mm larger than the outer diameter of the screw 1. The plastic deformation ring 2 is firstly sleeved on the screw rod 1 and then is subjected to plastic deformation to realize meshing with the screw rod 1, so that the inner diameter of the plastic deformation ring 2 is larger than the outer diameter of the screw rod 1, but the inner diameter of the plastic deformation ring 2 is not too large in order to ensure tight meshing with the screw rod 1 after deformation, therefore, in combination with practical application, the inner diameter of the plastic deformation ring 2 can be 0.1-0.3 mm larger than the outer diameter of the screw rod 1, and the plastic deformation ring can be ensured to be conveniently sleeved and simultaneously realize tight meshing with the screw rod. Specifically, the inner diameter of the plastic deformation ring 2 is 0.2mm larger than the outer diameter of the screw 1.
In some embodiments, the material of the plastic deformation ring 2 is a high quality carbon steel. The plastic deformation ring 2 is preferably made of high-strength, plastically deformable high-quality carbon steel, because it needs to be plastically deformed to engage and lock.
FIG. 4 is a schematic view of the plastically deformable ring of the clinch check bolt assembly. In some embodiments, as shown in fig. 4, the plastic deformation ring 2 specifically includes an annular deformation portion, and an outer circumference of an end surface of the deformation portion forms a ring of positioning portions. The deformation part is a cylinder, a circle of positioning part is formed on the outer circumferential surface of one end face of the deformation part, the positioning part is integrally in an annular structure, the positioning part and the end face of the same side of the deformation part are positioned on the same plane, when the plastic deformation ring 2 is tightly attached to the nut 3, the positioning part is directly attached to the side face of the nut 3, namely, the area a in the figure 4 is attached to the nut 3 to play a role of positioning support, when external force is applied to the area b in the figure 4 and the force is applied leftwards, the deformation part is compressed and deformed along the length direction of the screw rod 1, the inner side of the deformation part, namely, the area c in the figure 4 is deformed, the positioning part can enable the deformation part to be uniform in shape, the deformation part is tightly attached to the screw rod 1 and keeps full attachment to the nut 3, a gap is prevented from being formed by an inclination angle with the side face of the, And the locking effect of the plastically deformed ring 2. In some embodiments, the deformation portion and the positioning portion may be made of different materials, for example, the positioning portion may be made of hard materials (such as alloy steel, carbon steel, nichrome steel, etc.) with high strength and hardness, so that when the deformation portion is deformed, the positioning portion may serve as a support to ensure the uniformity of deformation of the deformation portion, and the locking force of the nut 3.
In some embodiments, the circumferential surface of the tail of the screw 1 is also provided with a section structure 5 which interrupts the external thread of the screw 1. The section structure 5 breaks the external thread of the screw rod 1, so that the thread is broken to generate a fault, the plastic deformation ring 2 covers or partially covers the section structure 5 after being deformed, and the plastic deformation ring 2 is tightly attached to the screw rod 1 after being deformed, and the section structure of the plastic deformation ring 2 also increases the axial and radial stress of the plastic deformation ring 2 and the nut 3, so that the plastic deformation ring 2 and the nut 3 can be prevented from rotating or moving, the plastic deformation ring 2 can be effectively prevented from rotating or moving along the screw rod, and a good stopping effect can be achieved on the plastic deformation ring 2. Meanwhile, the section structure 5 breaks the external thread of the screw rod 1, and the plastic deformation ring 2 covers or partially covers the section structure, so that when the plastic deformation ring 2 needs to be disassembled after being deformed, a blade, a metal rod and the like can enter the plastic deformation ring 2 through the section structure, and then an external force is used for rotating a tool out of the section structure by taking the screw rod 1 at the position of the section structure as a fulcrum, so that the plastic deformation ring 2 structure is damaged, the plastic deformation ring 2 is broken to realize quick disassembly, and the effect of assisting in disassembling the plastic deformation ring 2 is achieved.
Specifically, the section structure 5 is a groove arranged along the axial direction of the screw 1. The length of the groove along the axial direction of the screw is longer, the groove can be a flat groove, a spiral groove, a skewed groove and the like, an included angle can also exist between the groove and the central axis of the screw 1, and one end of the groove at least extends to the inner side of the deformed plastic deformation ring 2. The grooves have a depth, preferably from 1/5 to 2/5 of the diameter of the screw 1, so as not to affect the strength of the screw 1.
FIG. 5 is a schematic sectional view of the rivet type check bolt assembly with a notch groove; as shown in fig. 5, the cross-sectional structure 5 may be a slit groove disposed in a radial direction of the screw 1. The length of the notch groove along the axial direction of the screw is short, the notch groove can be a strip-shaped notch structure, and also can be a circular or partial circular notch structure formed around the outer circumference of the screw 1, and the opening surface of the notch groove is at least partially positioned at the inner side of the deformed plastic deformation ring 2. The notch groove has a depth, preferably from 1/5 to 2/5 of the diameter of the screw 1, to avoid affecting the strength of the screw 1.
FIG. 6 is a schematic sectional view of a riveted lock bolt assembly; as shown in fig. 5, the cross-sectional structure 5 may be a cut surface arranged along the axial direction of the screw. The tangent plane is a plane formed by partially cutting off the surface of the screw rod 1 along the axial direction of the screw rod 1, and the tangent plane can be a plane or an inclined plane, and can be one or a plurality of planes distributed (uniformly) around the screw rod 1. The cut surface is at least partially inside the deformed plastic deformable ring 2. The cut surface has a depth, preferably from 1/5 to 2/5 of the diameter of the screw 1, so as not to affect the strength of the screw 1.
The above is the embodiment of the present invention. The foregoing is the preferred embodiments of the present invention, and if the preferred embodiments in the preferred embodiments are not obviously contradictory or are based on a certain preferred embodiment, the preferred embodiments can be combined and used by any superposition, the specific parameters in the embodiments and examples are only for the purpose of clearly expressing the utility model verification process of the utility model, and are not used for limiting the patent protection scope of the present invention, the patent protection scope of the present invention is still based on the claims, and all the equivalent structural changes made by the contents of the specification and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a riveting formula check bolt subassembly, includes the screw rod, its characterized in that, the screw rod has set gradually plastic deformation ring sum nut to the head direction of screw rod along the afterbody of screw rod, and plastic deformation ring sum nut closely laminates, the nut with the screw rod meshing, plastic deformation ring can follow screw rod axial plastic deformation and with the screw rod realizes meshing locking.
2. A riveted lock bolt assembly according to claim 1, wherein the tail circumferential surface of the screw is further provided with a sectional structure which interrupts the external thread of the screw, and the plastically deformable ring covers or partially covers the sectional structure.
3. A riveted lock bolt assembly according to claim 2, wherein the cross-sectional structure is a groove provided in the axial direction of the screw.
4. A riveted lock bolt assembly according to claim 2, wherein the cross-sectional structure is a slit groove provided in a radial direction of the screw.
5. A riveted lock bolt assembly according to claim 2, wherein the cross-sectional structure is a tangential surface arranged in the axial direction of the screw.
6. The riveted lock bolt assembly according to claim 1, wherein the inner diameter of the plastic deformation ring is 0.1-0.3 mm larger than the outer diameter of the screw.
7. A riveted lock bolt assembly of claim 1, wherein the plastically deformable ring is made of carbon tool steel.
8. A riveted lock bolt assembly according to any one of claims 1 to 7, wherein the plastically deformable ring includes an annular deformable portion, and an end face outside circumference of the deformable portion forms a ring of the annularly-fitted positioning portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870388.5U CN210799672U (en) | 2019-11-01 | 2019-11-01 | Riveting type check bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921870388.5U CN210799672U (en) | 2019-11-01 | 2019-11-01 | Riveting type check bolt assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210799672U true CN210799672U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921870388.5U Active CN210799672U (en) | 2019-11-01 | 2019-11-01 | Riveting type check bolt assembly |
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| CN (1) | CN210799672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931917A (en) * | 2021-08-30 | 2022-01-14 | 航天特种材料及工艺技术研究所 | Gear type locking and anti-loosening mechanism |
-
2019
- 2019-11-01 CN CN201921870388.5U patent/CN210799672U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931917A (en) * | 2021-08-30 | 2022-01-14 | 航天特种材料及工艺技术研究所 | Gear type locking and anti-loosening mechanism |
| CN113931917B (en) * | 2021-08-30 | 2023-06-16 | 航天特种材料及工艺技术研究所 | Gear type locking and anti-loose mechanism |
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