CN204061473U - A kind of hexagon flange bolt - Google Patents
A kind of hexagon flange bolt Download PDFInfo
- Publication number
- CN204061473U CN204061473U CN201420169348.9U CN201420169348U CN204061473U CN 204061473 U CN204061473 U CN 204061473U CN 201420169348 U CN201420169348 U CN 201420169348U CN 204061473 U CN204061473 U CN 204061473U
- Authority
- CN
- China
- Prior art keywords
- bolt
- flange bolt
- hexagon
- hexagon flange
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of hexagon flange bolt, relates to engine component technical field, solves prior art Plays hexagon bolt with flange M8 × 25 head and cannot meet the problem of required clearance requirement and design; The height of head of described hexagon flange bolt is less than or equal to 6.8mm.By reducing bolt head height, the scheme that the utility model provides ensure that the part of motor each position does not exist interference risk mutually, meet required clearance requirement, has saved installing space simultaneously and has produced material, having reduced cost of production.
Description
Technical field
The utility model relates to engine component technical field, particularly relates to a kind of hexagon flange bolt.
Background technique
In engine component design process, ensure that the part of each position does not exist interference risk mutually, and ensure needed for intensity and screw-down torque requirement, but bolt M8 × 25, standard hex head flange face head cannot meet required clearance requirement, existing structure is as shown in Figure 1.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of hexagon flange bolt, solves the problem that prior art Plays hexagon bolt with flange M8 × 25 head cannot meet required clearance requirement.
For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of hexagon flange bolt, and wherein, the height of head of described hexagon flange bolt is less than or equal to 6.8mm; The twisting height of described hexagon flange bolt is greater than 3.3mm; Spanner across flats scope is 12.73 ~ 13mm.
Above-mentioned hexagon flange bolt, wherein, the flanged surface diameter range of described hexagon flange bolt is 15.5 ~ 17mm.
Above-mentioned hexagon flange bolt, wherein, the flange height of described hexagon flange bolt is greater than or equal to 1.2mm.
Above-mentioned hexagon flange bolt, wherein, the flange of described hexagon flange bolt is cylindric.
Above-mentioned hexagon flange bolt, wherein, flanged surface and the hexagon head contacting point of described hexagon flange bolt are that radian is connected.
The beneficial effect of technique scheme of the present utility model is as follows:
In such scheme, by reducing bolt head height, described hexagon flange bolt ensure that the part of motor each position does not exist interference risk mutually, meet required clearance requirement, has saved installing space simultaneously and has produced material, having reduced cost of production.
Accompanying drawing explanation
Fig. 1 is the structural representation of bolt M8 × 25, standard hex head flange face of prior art;
Fig. 2 is the structural representation one of the hexagon bolt with flange of the utility model embodiment;
Fig. 3 is the partial structurtes enlarged diagram of Fig. 2;
Fig. 4 is the structural representation two of the hexagon bolt with flange of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in detail.
The utility model cannot meet the problem of required clearance requirement for existing technology Plays hexagon bolt with flange M8 × 25 head, a kind of hexagon flange bolt is provided, as shown in Figure 2, wherein, the height of head k of described hexagon flange bolt is less than or equal to 6.8mm.
By reducing bolt head height, the described hexagon flange bolt that the utility model embodiment provides ensure that the part of motor each position does not exist interference risk mutually, meet required clearance requirement, save installing space simultaneously and produced material, having reduced cost of production.
The described hexagon flange bolt that the utility model embodiment provides, for ensureing assemblage gap, confirms that height of head is 6.8mm to the maximum as calculated, reduces 1.7mm than the requirement of the maximum value 8.5mm of standard height.Owing to pressing standard, bolt producer is when production standard hexagon flange bolt, and height of head controls between 7.5-8.2mm, and after changing to nonstandard hexagon flange bolt, production process height of head need control at below 6.8mm.
Under the prerequisite reducing height of head, twisting height also does corresponding reduction, but for ensureing the effective area of contact with assembling sleeve, have changed twisting height and spanner opposite side size simultaneously, as shown in Fig. 3 (Fig. 3 is the structure enlarged diagram of label I position in Fig. 2) and Fig. 4, wherein, the twisting height K of described hexagon flange bolt
w ebe greater than 3.3mm; Spanner across flats S scope is 12.73 ~ 13mm.
Require that twisting height is more than or equal to 3.3mm in the described hexagon flange bolt that the utility model provides, minimum value comparatively standard piece reduces 0.5mm.Spanner opposite side size is increased to 13mm from 10mm, that is in bolts assemblies process, adopts M13 sleeve, changes to M13 spanner from M10 spanner.The area of contact of bolt and spanner does not reduce, and has certain increase on the contrary, can not cause rundown process difficulty.
For ensureing area of contact, flanged surface (i.e. supporting surface) size has certain increase, as shown in Figure 3 and Figure 4, wherein, and the flanged surface diameter d of described hexagon flange bolt
wscope is 15.5 ~ 17mm.
In the described hexagon flange bolt that the utility model provides, the diameter of flanged surface is increased to minimum 15.5mm from minimum 14.9mm, and area of contact increases 14.34mm
2, be conducive to the guarantee of mounting torque.
In addition for ensureing height of head and twisting height, as shown in Figure 2, Figure 3 and Figure 4, the flange of described hexagon flange bolt is cylindric, flanged surface and the hexagon head contacting point of described hexagon flange bolt are that radian is connected, maintenance seamlessly transits, the design of flange thickness still minimally 1.2mm, namely the height h of described flange is greater than or equal to 1.2mm.Other size requirements and standard hex flange face bolt are consistent: spanner width across corners e >=14.2mm, Nominal length l=25 ± 0.42mm, nominal diameter d≤9.2mm, °-30 °, undercut ss=15, reach (reference) is 22mm, be more than or equal to 7.64mm without threaded stem footpath, be less than or equal to 2.75mm without thread rod part length, last button complete thread is to supporting surface distance lg≤4mm.
Above-described is preferred implementation of the present utility model; should be understood that the ordinary person for the art; can also make some improvements and modifications not departing under principle prerequisite described in the utility model, these improvements and modifications are also in protection domain of the present utility model.
Claims (5)
1. a hexagon flange bolt, is characterized in that, the height of head of described hexagon flange bolt is less than or equal to 6.8mm; The twisting height of described hexagon flange bolt is greater than 3.3mm; Spanner across flats scope is 12.73 ~ 13mm.
2. hexagon flange bolt as claimed in claim 1, it is characterized in that, the flanged surface diameter range of described hexagon flange bolt is 15.5 ~ 17mm.
3. hexagon flange bolt as claimed in claim 2, it is characterized in that, the flange height of described hexagon flange bolt is greater than or equal to 1.2mm.
4. hexagon flange bolt as claimed in claim 1, it is characterized in that, the flange of described hexagon flange bolt is cylindric.
5. hexagon flange bolt as claimed in claim 1, it is characterized in that, flanged surface and the hexagon head contacting point of described hexagon flange bolt are that radian is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169348.9U CN204061473U (en) | 2014-04-09 | 2014-04-09 | A kind of hexagon flange bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169348.9U CN204061473U (en) | 2014-04-09 | 2014-04-09 | A kind of hexagon flange bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061473U true CN204061473U (en) | 2014-12-31 |
Family
ID=52202998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420169348.9U Expired - Fee Related CN204061473U (en) | 2014-04-09 | 2014-04-09 | A kind of hexagon flange bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061473U (en) |
-
2014
- 2014-04-09 CN CN201420169348.9U patent/CN204061473U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |