CN210148001U - Novel spring mounting device for structural bolt - Google Patents
Novel spring mounting device for structural bolt Download PDFInfo
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- CN210148001U CN210148001U CN201920648940.XU CN201920648940U CN210148001U CN 210148001 U CN210148001 U CN 210148001U CN 201920648940 U CN201920648940 U CN 201920648940U CN 210148001 U CN210148001 U CN 210148001U
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Abstract
The utility model provides a spring mounting device of a novel structural bolt, which comprises a guide sleeve and a guide rod, wherein the center of the guide sleeve is provided with an inner through hole, and a plurality of bosses are distributed on the hole wall of the inner through hole along the axial direction; the guide rod comprises a truncated cone-shaped section, positioning sections and a bolt connecting section, the positioning sections and the bolt connecting section are arranged at two ends of the truncated cone-shaped section, the positioning sections are located at one end, with the small diameter, of the truncated cone-shaped section, the bolt connecting section is located at one end, with the large diameter, of the truncated cone-shaped section, a plurality of grooves are axially formed in the outer surface of the truncated cone-shaped section, the guide rod is inserted into the inner through hole of the guide sleeve, and the bosses are matched with the grooves and slide along the grooves. A novel spring mounting of construction bolt device, push the ring channel of bolt main part with the spring through the uide bushing in, push the in-process, the spring hole is along the even atress of circumferencial direction, warp, makes the installation of spring and bolt main part satisfy the operation requirement, improves the installation effectiveness, reduces installation cost.
Description
Technical Field
The utility model belongs to the technical test field of aerospace engine fastening system, especially, relate to a novel construction bolt's spring mounting device.
Background
At present, in the field of aerospace, high-end high-performance fasteners are rare, a bolt with a special structure is needed in certain special fields, a spring is installed at one end of the bolt and is mainly used for fixing part of skin on an airplane, and compared with the bolt with the existing structure, the bolt with the special structure has the advantages that a clamping ring on the bolt is prevented from falling off, wrenching and slipping are prevented, and the use precision and reliability are high.
At present, the existing installation method of a spring is that the three claws of the head of a drill chuck are expanded by utilizing the expansion performance of the three claws, the three claws extend into an inner hole of the spring to be expanded and are sent into an installation position through an open slot at the end face of a bolt to realize installation, the spring is stressed at three points when the three claws are expanded, the deformation of the spring is large at the position supported by the three claws, the deformation of the unsupported position is small, and the expanded spring can generate uneven plastic deformation to a certain extent due to uneven stress, so that the outer diameter of the expanded position of the spring at the three claws is larger than that of other positions. In addition, because the structure does not limit the spreading action of the three claws, the deformation amount of the spring after spreading is uncontrollable, and different spring states have differences after installation.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a novel construction bolt's spring mounting device to solve inhomogeneous problem of deformation and the uncontrollable problem of deflection when the spring mounting.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a spring mounting device for a bolt with a novel structure comprises a bolt main body and a spring, wherein a mounting hole is formed in the tail end of the bolt main body, an annular groove is formed in the wall of the mounting hole in the radial direction, a plurality of notches are formed in the tail end of the wall of the mounting hole in the axial direction, and the spring is mounted at the annular groove; the guide sleeve is cylindrical, an inner through hole is formed in the center of the guide sleeve, and a plurality of bosses are uniformly distributed on the hole wall of the inner through hole along the axial direction; the guide rod comprises a truncated cone-shaped section, a positioning section and a bolt connecting section, wherein the positioning section and the bolt connecting section are arranged at two ends of the truncated cone-shaped section, the positioning section is positioned at one end with a small diameter of the truncated cone-shaped section, the bolt connecting section is positioned at one end with a large diameter of the truncated cone-shaped section, the diameter of the positioning section is the same as the minimum diameter of the truncated cone-shaped section, the diameter of the bolt connecting section is smaller than the maximum diameter of the truncated cone-shaped section, a plurality of grooves are axially formed in the outer surface of the truncated cone-shaped section, the maximum diameter of the guide rod is smaller than the inner diameter of the inner through hole, the guide rod is inserted into the inner through hole of the guide; the maximum diameter of the bolt connecting section is equal to the inner diameter of the mounting hole, the bolt connecting section is inserted into the mounting hole, and the outer diameter of the mounting hole is equal to the maximum diameter of the truncated conical section.
Furthermore, the number of the bosses and the number of the grooves are three, and the number of the notches is three and corresponds to that of the grooves.
Furthermore, the gap between the boss and the groove is 0.05-0.1 mm.
Further, the surface finish of the guide rod is greater than Ra1.6.
Further, the external conicity of the truncated conical section is 1:45-1: 50.
Compared with the prior art, the novel spring mounting of construction bolt device and application method thereof have following advantage:
a novel spring mounting of construction bolt device, including uide bushing and guide bar, spring mounting is in guide bar truncation toper section department, push the ring channel of bolt main part with the spring through the uide bushing in, push the in-process, the spring is propped open gradually, the even atress of circumferencial direction is followed to the spring hole, warp, the deflection of spring depends on the size of truncation toper section simultaneously, the deflection of spring can be controlled through the outer disc taper that changes truncation toper section, make the installation of spring and bolt main part satisfy the operation requirement, improve the installation effectiveness, reduce installation cost.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic three-dimensional structure diagram of a spring mounting device of a bolt with a novel structure in embodiment 1;
FIG. 2 is a schematic view of a guide sleeve of the spring mounting device of the bolt with a novel structure according to embodiment 1;
FIG. 3 is a schematic view of the structure of a guide rod of the spring mounting device of the bolt with a novel structure according to embodiment 1;
FIG. 4 is a schematic view of a bolt structure of a spring mounting device for a bolt of a novel structure according to embodiment 1;
fig. 5 is a schematic diagram of a spring structure of the spring mounting device for a bolt with a novel structure according to embodiment 1.
Description of reference numerals:
1. a bolt body; 101. an annular groove; 102. opening the gap; 2. a spring; 3. a guide sleeve; 4. an inner through hole; 5. a boss; 6. a guide rod; 7. a truncated conical section; 8. a positioning section; 9. a bolt connection section; 10. and (4) a groove.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
A spring mounting device for a bolt with a novel structure comprises a bolt main body 1 and a spring 2, wherein a mounting hole is formed in the tail end of the bolt main body 1, an annular groove 101 is formed in the wall of the mounting hole in the radial direction, a plurality of notches 102 are formed in the tail end of the wall of the mounting hole in the axial direction, and the spring 2 is mounted at the annular groove 101;
the guiding device also comprises a guiding sleeve 3 and a guiding rod 6, as shown in figure 2, the guiding sleeve 3 is cylindrical, an inner through hole 4 is arranged at the center of the guiding sleeve 3, and three bosses 5 are uniformly distributed on the hole wall of the inner through hole 4 along the axial direction;
as shown in fig. 3, the guide rod 6 comprises a truncated cone section 7, a positioning section 8 and a bolt connecting section 9, the positioning section 8 is arranged at one end of the truncated cone section 7 with a small diameter, the bolt connecting section 9 is arranged at one end of the truncated cone section 7 with a large diameter, the diameter of the positioning section 8 is the same as the minimum diameter of the truncated cone section 7, the diameter of the bolt connecting section 9 is smaller than the maximum diameter of the truncated cone section 7, the surface finish of the truncated cone section 7, the positioning section 8 and the bolt connecting section 9 is larger than Ra1.6, the surface is smooth, the external conicity of the truncated cone section 7 is 1:45-1:50, a plurality of grooves 10 are axially arranged on the outer surface of the truncated cone section 7, the maximum diameter of the guide rod 6 is smaller than the inner diameter of the inner through hole 4, the guide rod 6 is ensured to be inserted into the inner through hole 4 of the guide sleeve 3, the boss 5 is matched with the grooves 10, the gap between the boss 5 and the grooves 10 is 0.05-0.1mm, the boss 5 slides along the groove 10, so that the guide sleeve 3 is ensured to slide along the guide rod 6; the degree of depth of recess 10 deepens gradually along the axial of truncation toper section 7, and the recess that is close to bolted connection section 9 one end is deepest, with bolted connection section 9 smooth connection, the maximum diameter of bolted connection section 9 equals with the internal diameter of mounting hole, make bolted connection section 9 just insert in the mounting hole, the external diameter of mounting hole equals with the maximum diameter of truncation toper section 7, guarantee that spring 2 can just follow the end of truncation toper section 7 and slide into bolt main part 1 on, and then in the sliding into ring channel 101, accomplish spring mounting.
The utility model discloses embodiment 1 a novel construction bolt's spring mounting device's application method do:
the utility model discloses a spring mounting device of novel construction bolt, as shown in figure 1, during the use, at first pack into spring 2 from 8 one sides of positioning section of guide bar 6, make spring 2 install in the truncated cone section 7 outside, push guide sleeve 3's interior through-hole 4 into guide bar 6 from 8 one sides of positioning section, boss 5 on the interior through-hole 4 pore wall cooperates with recess 10 on the truncated cone section 7, make guide sleeve 3 move along recess 10, promote spring 2 and slide on the truncated cone section 7, the internal diameter that spring 2 was strutted at this moment is bigger and bigger; the bolt connecting section 9 of the guide rod 6 is plugged into the mounting hole of the bolt main body 1, the outer diameter of the mounting hole is equal to the maximum diameter of the truncated conical section 7, meanwhile, the notches 102 are in one-to-one correspondence with the grooves 10, the guide sleeve 3 is continuously pushed, the boss 5 slides into the notch 102 along the groove 10, the spring 2 can just slide into the bolt main body 1 from the tail end of the truncated conical section 7, and then slides into the annular groove 101, and the spring mounting is completed.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A spring mounting device for a bolt with a novel structure comprises a bolt main body (1) and a spring (2), wherein a mounting hole is formed in the tail end of the bolt main body (1), an annular groove (101) is formed in the wall of the mounting hole in the radial direction, a plurality of notches (102) are formed in the tail end of the wall of the mounting hole in the axial direction, and the spring (2) is mounted at the annular groove (101); the method is characterized in that: the guide sleeve is characterized by further comprising a guide sleeve (3) and a guide rod (6), wherein the guide sleeve (3) is cylindrical, an inner through hole (4) is formed in the center of the guide sleeve (3), and a plurality of bosses (5) are uniformly distributed on the wall of the inner through hole (4) along the axial direction;
the guide rod (6) comprises a truncated conical section (7), positioning sections (8) and bolt connecting sections (9) which are arranged at two ends of the truncated conical section (7), the positioning section (8) is positioned at one end of the truncated conical section (7) with small diameter, the bolt connecting section (9) is positioned at one end of the truncated conical section (7) with large diameter, and the diameter of the positioning section (8) is the same as the minimum diameter of the truncated conical section (7), the diameter of the bolt connecting section (9) is smaller than the maximum diameter of the truncated conical section (7), the outer surface of the truncated conical section (7) is provided with a plurality of grooves (10) along the axial direction, the maximum diameter of the guide rod (6) is smaller than the inner diameter of the inner through hole (4), the guide rod (6) is inserted into the inner through hole (4) of the guide sleeve (3), the boss (5) is matched with the groove (10) and slides along the groove (10);
the maximum diameter of the bolt connecting section (9) is equal to the inner diameter of the mounting hole, the bolt connecting section (9) is inserted into the mounting hole, and the outer diameter of the mounting hole is equal to the maximum diameter of the truncated conical section (7).
2. The spring mounting device for the novel structural bolt of claim 1, wherein: the number of the bosses (5) and the number of the grooves (10) are three, and the number of the gaps (102) is three and corresponds to the number of the grooves (10).
3. The spring mounting device for the novel structural bolt of claim 2, wherein: the gap between the boss (5) and the groove (10) is 0.05-0.1 mm.
4. The spring mounting device for the novel structural bolt of claim 1, wherein: the surface smoothness of the guide rod (6) is greater than Ra1.6.
5. The spring mounting device for the novel structural bolt of claim 4 is characterized in that: the external conicity of the truncated conical section (7) is 1:45-1: 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648940.XU CN210148001U (en) | 2019-05-08 | 2019-05-08 | Novel spring mounting device for structural bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920648940.XU CN210148001U (en) | 2019-05-08 | 2019-05-08 | Novel spring mounting device for structural bolt |
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| Publication Number | Publication Date |
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| CN210148001U true CN210148001U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920648940.XU Active CN210148001U (en) | 2019-05-08 | 2019-05-08 | Novel spring mounting device for structural bolt |
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| CN (1) | CN210148001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052997A (en) * | 2019-05-08 | 2019-07-26 | 成立航空技术有限公司 | A kind of spring fitting device of new structure bolt |
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2019
- 2019-05-08 CN CN201920648940.XU patent/CN210148001U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052997A (en) * | 2019-05-08 | 2019-07-26 | 成立航空技术有限公司 | A kind of spring fitting device of new structure bolt |
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Address after: Room 2-103, Warner Jinghu Garden, Dongli District, Tianjin Patentee after: Establishment of Aviation Co., Ltd Address before: Room 2-103, Warner Jinghu Garden, Dongli District, Tianjin Patentee before: CHENGLI AVIATION TECHNOLOGY Co.,Ltd. |