CN87202634U - Telescopic prop made of i-steel beam - Google Patents
Telescopic prop made of i-steel beam Download PDFInfo
- Publication number
- CN87202634U CN87202634U CN 87202634 CN87202634U CN87202634U CN 87202634 U CN87202634 U CN 87202634U CN 87202634 CN87202634 CN 87202634 CN 87202634 U CN87202634 U CN 87202634U CN 87202634 U CN87202634 U CN 87202634U
- Authority
- CN
- China
- Prior art keywords
- iron
- sliding component
- contractibility
- support according
- excavation support
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract description 8
- 239000010959 steel Substances 0.000 title abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 60
- 229910052742 iron Inorganic materials 0.000 claims description 30
- 238000009412 basement excavation Methods 0.000 claims description 17
- 241000826860 Trapezium Species 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 210000004233 talus Anatomy 0.000 abstract 1
- 239000000306 component Substances 0.000 description 32
- 239000011435 rock Substances 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides a telescopic prop made of an I-steel beam, which is suitable for a support of tunnel breaking surface in all kinds of shapes. In order to ameliorate mechanical properties of the prop, the utility model adopts a slipping member (4) with a talus (a), a plane (b), a guide face (d), and a slotted hole (c). The slipping member (4) and a pole leg (2) are connected into one integration by a bolt (3), so the purpose of telescopic prop comes true easily. The telescopic prop in trapezium shape is not only vertical telescopic, but also sideways telescopic by means of clamping friction block (5).
Description
The utility model a kind of i iron contractibility excavation support of touching upon is applicable to the drift section supporting of different shape, belongs to the mine laneway support apparatus.
At present, make rigid support with i iron both at home and abroad, when the deformation of the surrounding rock in tunnel amount was big slightly, rigid support will be damaged, and had lost the effect in supporting tunnel.For this reason, some scientific research personnel are devoted to study the i iron collapsible timbering, with the bigger distortion of suitable for surrounding rock.Prior art in this technical field sees also research institute of scientific-technical information of Ministry of Coal Industry and publishes January nineteen eighty-three, is pressed a kind of collapsible timbering of " metallic supports in galleries is with reference to atlas " the 6th page of proposition that a Room writes by exploitation institute of Coal Mining Research Institute ore deposit.Because this stand connection complex structure, processing is difficult for, and fails so far to use aborning.
In view of the problem that above-mentioned technology exists, task of the present utility model is a kind of support mechanical property of improving of design, simple and practical, with low cost i iron contractibility excavation support.
Below in conjunction with accompanying drawing two embodiment that the utility model provides are described in detail:
Fig. 1 is the structure chart of the trapezoidal excavation support of i iron contractibility.It is made up of post leg backing plate (1) post leg (2), bolt (3), sliding component (4), clamping brake pad (5), back timber (6) bolt (7).The core component of support is sliding component (4) and clamps brake pad (5).The concrete structure of sliding component (4) such as Fig. 2, Fig. 3 and shown in Figure 4.The concrete structure of clamping brake pad (5) as shown in Figure 6.Sliding component (4) comprises A, B two partly, and wherein A partly has inclined-plane (a), and B partly has plane (b), has slotted eye (c) and spigot surface (d) on the sliding component (4).Post leg (2) is i iron with back timber (6) and makes.Post leg (2) overlaps on the i iron web (10) partly with sliding component (4), and preparation helps two circular holes of installation and fastening bolt (3).Each joint of can contracting is made up of two sliding components (4) and two cover bolts (3).Two post legs of support are supporting back timber (6), thereby produce the supporting resistance to back.When support installs, earlier two sliding components (4) are placed can the contract both sides of lap-joint's web (10) of steel I-column leg (2) respectively, and the A of sliding component (4) is partly downward, spigot surface (d) contacts with two edges of a wing of post leg, uses bolt (3) to connect then.After tight a bolt (3), bolt just clamps sliding component (4) and steel I-column leg (2), and between has produced longitudinal frictional force, stop sliding component (4) and relatively moving that post leg (2) produces, the pressure that acts on the stent strut leg (2) when back timber (6) is less than or equal to this frictional force, does not contract under the part that can contract does not take place; When greater than frictional force, sliding component (4) will be along post leg (2) to lower slider, and back timber (6) also sinks thereupon, thereby has realized the purpose that support vertically can contract.Because the A of sliding component (4) partly has inclined-plane (a), so along with the slip of sliding component (4) with respect to steel I-column leg (2), support has the resistance of increasing characteristic.Along with the continuation of sliding component (4) is glided, when B that bolt (3) arrives sliding component (4) partly after it is constant that the supporting resistance of support keeps because B is plane (b), at this moment support has the constant-resistance characteristic.For the different roadway surrounding rock conditions and the i iron of various different models,, just can design the i iron compressibile support of optimum performance as long as select the related parameter that has of suitable screw diameter and sliding component (4).
For trapezoidal contractibility excavation support, linkage between beam and the leg also has side direction contractibility energy, it clamps brake pad (5) by two and bolt (7) is formed, clamp brake pad (5) fastening on the edge of a wing (9) of h beam cap (6), bolt (7) passes sliding component (4) and clamps brake pad (5) beam and leg are coupled together.When lateral pressure that post leg (2) is subjected to during greater than the frictional force that clamps between brake pad (5) and the back timber edge of a wing, back timber (6) and the sliding component (4), just producing side direction can contract.
Fig. 2 is the front view of i iron contractibility trapezoid support sliding component (4).The centre has elongate slot (c), so that bolt (3) and (7) can be passed smoothly.
Fig. 3 is the vertical view of i iron contractibility trapezoid support sliding component (4).Sliding component comprises A, B two partly, and wherein partly upper and lower surface has inclined-plane (a) to A, B partly has plane (b).
Fig. 4 is the lateral view of i iron contractibility trapezoid support sliding component (4), has spigot surface (d).
Fig. 5 is the A-A sectional drawing of Fig. 1.(2) be the post leg, (3) are bolt, and (4) are sliding component, and (8) are packing ring, and (9) are the edge of a wing of i iron, the web of (10) i iron.
Fig. 6 is the linkage elevation of i iron contractibility trapezoid support back timber (6) and sliding component (4).(5) for clamping brake pad.
Fig. 7 is the linkage B-B sectional drawing of i iron contractibility trapezoid support back timber (6) and sliding component (4).
Fig. 8 is a kind of front view of i iron arch contractibility excavation support, and it is by backing plate (1), steel I-column leg (2), bolt (3), arc sliding component (4), and link bolt (5) and arc back timber (6) are formed.
Fig. 9 is the front view of the arc sliding component (4) of i iron arch contractibility excavation support.The radius of this arc sliding component is consistent with post leg (2) lap-joint radius, equally also has inclined-plane (a), plane (b), slotted eye (c) and spigot surface (d).Arc sliding component (4) passes hinge hole with arc back timber (6) lap-joint with link bolt (5) and connects.
Figure 10 is the C-C sectional drawing of i iron arch contractibility excavation support sliding component (4).
The detailed description of above manual and accompanying drawing promptly can be used as embodiments of the invention, can adopt common straightcarbon steel or Fine Steel Casting iron or common low alloy structural steel to make sliding component.
Claims (10)
1, a kind of i iron contractibility excavation support that is used for the mine laneway supporting, formed by post leg (2), back timber (6), it is characterized in that adopting between post leg (2) and the back timber (6) sliding component (4) and clamp brake pad (5) and be connected one with (7), and reach and to contract by frictional force therebetween by bolt (3).
2, i iron contractibility excavation support according to claim 1 is characterized in that post leg (2) adopts bolt (3) to be connected with the overlap joint of sliding component (4).
3,, it is characterized in that using sliding component (4) to realize to contract connection according to claim 1,2 described i iron contractibility excavation supports.
4, i iron contractibility excavation support according to claim 1 is characterized in that sliding component (4) has inclined-plane (a).
5, i iron contractibility excavation support according to claim 1 is characterized in that sliding component (4) has plane (b).
6, i iron contractibility excavation support according to claim 1 is characterized in that sliding component (4) is shaped on slotted eye (c).
7, i iron contractibility excavation support according to claim 1 is characterized in that sliding component (4) is shaped on spigot surface (d).
8, i iron contractibility excavation support according to claim 1 is characterized in that sliding component (4) adopts clamping brake pad (5) to be connected one with back timber (6), realizes the purpose that side direction can contract.
9, i iron contractibility excavation support according to claim 1 is characterized in that there is circular hole in the contracted lap-joint of post leg (2).
10, i iron contractibility excavation support according to claim 1 is characterized in that sliding component (4) is cylindricality or arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202634 CN87202634U (en) | 1987-03-04 | 1987-03-04 | Telescopic prop made of i-steel beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87202634 CN87202634U (en) | 1987-03-04 | 1987-03-04 | Telescopic prop made of i-steel beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87202634U true CN87202634U (en) | 1987-12-31 |
Family
ID=4818748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87202634 Expired - Lifetime CN87202634U (en) | 1987-03-04 | 1987-03-04 | Telescopic prop made of i-steel beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87202634U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481559A (en) * | 2014-11-18 | 2015-04-01 | 成都理工大学 | Asymmetric large-deformation contractible steel arch and mounting method based on contractible steel arch |
| CN105386780A (en) * | 2015-11-26 | 2016-03-09 | 赵西方 | Rock burst prevention steel structural part roadway support shrinkage structure |
| CN110985065A (en) * | 2019-12-20 | 2020-04-10 | 内蒙古东蒙工贸有限责任公司 | Scalable reducing U type canopy |
-
1987
- 1987-03-04 CN CN 87202634 patent/CN87202634U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481559A (en) * | 2014-11-18 | 2015-04-01 | 成都理工大学 | Asymmetric large-deformation contractible steel arch and mounting method based on contractible steel arch |
| CN105386780A (en) * | 2015-11-26 | 2016-03-09 | 赵西方 | Rock burst prevention steel structural part roadway support shrinkage structure |
| CN105386780B (en) * | 2015-11-26 | 2018-02-27 | 赵西方 | Protecting against shock compressed steel structural member excavation support can shrinking structure |
| CN110985065A (en) * | 2019-12-20 | 2020-04-10 | 内蒙古东蒙工贸有限责任公司 | Scalable reducing U type canopy |
| CN110985065B (en) * | 2019-12-20 | 2021-03-30 | 内蒙古东蒙工贸有限责任公司 | Scalable reducing U type canopy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |