CN203286260U - Sectional material - Google Patents
Sectional material Download PDFInfo
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- CN203286260U CN203286260U CN2013200948753U CN201320094875U CN203286260U CN 203286260 U CN203286260 U CN 203286260U CN 2013200948753 U CN2013200948753 U CN 2013200948753U CN 201320094875 U CN201320094875 U CN 201320094875U CN 203286260 U CN203286260 U CN 203286260U
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- section bar
- groove
- sectional material
- section
- utility
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Abstract
The utility model relates to a sectional material which aims to improve the resistance of the sectional material. The sectional material is tubular, the cross section of the sectional material is rectangular, at least one side face of the sectional material is provided with at least one axial groove, and the ratio of the wall thickness of the sectional material and the depth of the groove is 1 to 0.5 to 1 to 10. The shape of the sectional material is improved, the resistance of the sectional material is improved, the technical scheme is especially suitable for being used in sectional materials with thin side faces or small widths, the resistance of the sectional materials can be notably improved, production cost is lowered due to reduction of raw material consumption, and the thickness of the sectional material is reduced by 20% after being proved by production practice.
Description
Technical field
The utility model relates to a kind of section bar.
Background technique
The resistance to compression of material or resistance to tension (hereinafter to be referred as drag) are described by its stress strain curve, the stress-strain state of plastic material has four-stage: the first stage is the elastic strain stage, the strain of this stage material and stress are linear relationships, its difference quotient is that stress rate is a constant, be called Young's modulus, Young's modulus is the intrinsic attribute of material, is and the geometric scale of material such as length and the irrelevant constant of diameter of section; The variance ratio that reflection stress is length increment to the strain on same straight line is called Young's modulus, reflection stress on same straight line strain be called shear modulus with the tangential variance ratio at the deformation angle between yardstick, reflection stress is called bulk modulus to the variance ratio that volume reduces, and the maximum value of elastic stress claims limit of elasticity σ
eThe second valency section is the surrender stage, this one-phase loads pressure/pulling force, the stress of material presents non-linear continuous dying oscillation to strain, the drag that is material is weak, stress intensity increases and slightly vibration with strain, if at decline fraction unloading pressure/pulling force, strain increases to the minimizing equinoctial point of stress and no longer reduces or increase, material can not recover, if at the section of increasing progressively unloading pressure/pulling force, in like manner strain is decreased to the stress minimum point, and material, in the surrender stage, irreversible deformation has occurred, and last point of safes is also that the stress minimum value of plastic stage claims yield limit σ
s, the plasticity of exosyndrome material; Phase III is strain, and stress has obvious rising along with the increase of strain, and stress rate is decrescence little, and stress increases to maximum, and namely material had maximum stress and claimed tensile strength sigma this moment
p, the deformation of phase III is reversible; Fourth stage is the local footpath contracting stage, and stress is started significantly to reduce by maximum value with strain, and this moment, irreversible local train occurred material, and partial cross-section sharply reduces and is tending towards rupturing.In sum, tensile strength sigma
pIt is the critical quantity of weighing the material drag.
The drag of section bar and the tensile strength sigma of material therefor
pRelevant with shape of section bar etc.The fracture of section bar is many due to the stressed limit of shearing drag that surpasses; Existing tubulose section bar is to increase drag by the thickness that increases side, it is the tubulose of regular regular polygon that shape adopts cross section, this section bar processing is easy, and the lateral thickness of tubulose is larger, larger to raw-material demand, increased the cost of section bar, and section bar is comparatively heavy, carrying inconvenience.
The model utility content
The utility model purpose is to increase by the improvement profile shapes drag of section bar.
The utility model is realized by the following technical solutions, and the utility model section bar, described section bar are tubulose, and the cross section of described tubulose section bar is rectangle, at least one side of described section bar, is provided with and is no less than an axial groove.
Preferably, the wall thickness of described section bar is 1:0.5 to 1:10 with the ratio of the degree of depth of groove.
Preferably, the wall thickness of described section bar is 1:1.5 to 1:2.5 with the ratio of the degree of depth of groove.
Preferably, described transverse section of section material is rectangular, and two wider sides of described section bar are provided with groove axial more than two.
Preferably, each side of described section bar is equipped with 1 groove.
Preferably, described groove is trapezoidal.
Preferably, described groove is arch.
Preferably, described groove is zigzag fashion.
The beneficial effects of the utility model are:
Improve by the shape to section bar, improved the drag of section bar, be particularly suitable for the thinner open column shape section bar in side, through practical experience, sum up and to obtain, when the ratio of the thickness of groove 3 and the wall thickness of section bar was 1 to 3, the drag of section bar was maximum; Practical experience is summed up and is obtained, and the thickness of section bar approximately reduces 20%., by reducing raw materials consumption, reduced the cost of production of equipment on the one hand; Alleviate on the other hand the weight of equipment and make the carrying of equipment more convenient.
Description of drawings
Fig. 1 is the utility model embodiment 1 front view
Fig. 2 is the utility model embodiment 1 side view
Fig. 3 is the utility model embodiment 2 front view
Fig. 4 is the side view of the utility model fact Example 2
Fig. 5 is the utility model embodiment 3 front view
Fig. 6 is the utility model embodiment 3 side view
Fig. 7 is the utility model embodiment 4 front view
Fig. 8 is the utility model embodiment 4 side view
Fig. 9 is the utility model embodiment 5 front view
Figure 10 is the utility model embodiment 5 side view
In figure: 1-cross section, 2-side, 3-groove.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
Embodiment 1:
As Fig. 1-2, the utility model section bar, described section bar is tubulose 1, described tubulose transverse section of section material is rectangle, and two wider sides 2 of described section bar are respectively equipped with 3, two narrower sides 2 of two axial grooves and are respectively equipped with an axial groove, described groove 3 is trapezoidal, sum up and to obtain through practical experience, when the ratio of the wall thickness of section bar and the degree of depth of groove was 1:0.7, the drag of section bar was maximum; Sum up and in like manner obtain through practical experience, the thickness of section bar approximately reduces 20%, and the utility model is particularly suitable for the section bar that wall is thin or width is less.
Embodiment 2:
As Fig. 3-4, the cross section of described section bar is rectangle, and two wider sides 2 of described section bar are respectively equipped with two axial grooves 3, described groove 3 is trapezoidal, sum up and to obtain through practical experience, when the ratio of the wall thickness of section bar and the degree of depth of groove 3 was 1:0.7, the drag of section bar was maximum.
Embodiment 3:
As Fig. 5-6, described four sides 2 are respectively equipped with 1 groove 3, and described groove 3 is trapezoidal, through practical experience, sum up and to obtain, and when the ratio of the wall thickness of section bar and the degree of depth of groove 3 was 1:0.7, the drag of section bar was maximum.
Embodiment 4:
As Fig. 7-8, the utility model section bar, described groove 3 is arch; Arcuate recess can be converted into longitudinal stress with a part of shearing stress, therefore this shape more is conducive to increase the shearing drag of section bar; Sum up and to obtain through practical experience, when the ratio of the wall thickness of section bar and the degree of depth of groove 3 was 1:4, the drag of section bar was maximum.
Embodiment 5:
As Fig. 9-10, the utility model section bar, described groove 3 is zigzag fashion; Sum up and to obtain through practical experience, when the ratio of the wall thickness of section bar and the degree of depth of groove 3 was 1:1.5, the drag of section bar was maximum.
Claims (8)
1. a section bar, is characterized in that, described section bar is tubulose, and the cross section of described tubulose section bar is rectangle, at least one side of described section bar, is provided with and is no less than an axial groove.
2. section bar as claimed in claim 1, is characterized in that, the wall thickness of described section bar is 1:0.5 to 1:10 with the ratio of the degree of depth of groove.
3. section bar as claimed in claim 2, is characterized in that, the wall thickness of described section bar is 1:1.5 to 1:2.5 with the ratio of the degree of depth of groove.
4., as claim 1,2 or 3 described section bars, it is characterized in that, described transverse section of section material is rectangular, and two wider sides of described section bar are respectively equipped with and are no less than two axial grooves.
5., as claim 1,2 or 3 described section bars, it is characterized in that, each side of described section bar is equipped with 1 groove.
6., as claim 1,2 or 3 described section bars, it is characterized in that, described groove is trapezoidal.
7., as claim 1,2 or 3 described section bars, it is characterized in that, described groove is arch.
8., as claim 1,2 or 3 described section bars, it is characterized in that, described groove is zigzag fashion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200948753U CN203286260U (en) | 2013-03-01 | 2013-03-01 | Sectional material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200948753U CN203286260U (en) | 2013-03-01 | 2013-03-01 | Sectional material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203286260U true CN203286260U (en) | 2013-11-13 |
Family
ID=49542621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200948753U Expired - Fee Related CN203286260U (en) | 2013-03-01 | 2013-03-01 | Sectional material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203286260U (en) |
-
2013
- 2013-03-01 CN CN2013200948753U patent/CN203286260U/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 |
Granted publication date: 20131113 Termination date: 20140301 |