CN203308477U - Yieldable iron support rod for mine - Google Patents
Yieldable iron support rod for mine Download PDFInfo
- Publication number
- CN203308477U CN203308477U CN2013203096420U CN201320309642U CN203308477U CN 203308477 U CN203308477 U CN 203308477U CN 2013203096420 U CN2013203096420 U CN 2013203096420U CN 201320309642 U CN201320309642 U CN 201320309642U CN 203308477 U CN203308477 U CN 203308477U
- Authority
- CN
- China
- Prior art keywords
- rod
- screw rod
- contractibility
- head
- yieldable
- 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
Links
Images
Abstract
The utility model discloses a yieldable iron support rod for a mine. The yieldable iron support rod comprises a rod body and a rod head, wherein the rod body is sheathed in the rod head, in addition, a spring is sheathed in the rod body, two ends of the spring are respectively propped and pressed on a seal head and a screw rod, an end head is welded and fixed at the tail end of the screw rod, and the end head and the seal head are steel plates in the same shapes. The yieldable iron support rod has the advantages that the iron support rod is used, an I-steel support frame is perfectly reinforced, during the subsequent construction, the phenomena of shed turning, blasting collapse and support frame collapse do not occur, the safety of the laneway construction is ensured, meanwhile, the repair rate of the support frame is reduced, the work intensity of workers is reduced, the construction field space is increased, and good safety benefits are obtained.
Description
Technical field
The utility model relates to the reinforcing laneway instrument in the field, colliery, is specifically related to a kind of mine contractibility iron strut.
Background technology
The 3.0m(beam is adopted in lower crossheading supporting) * the 2.6m(leg) i iron is to canopy, and canopy, apart from 700mm, spreads the monolayer plastic net, upper clear span 2.78m, lower clear span 4.0 m, clear height 2.3m, 18 blocks of back of the body wood.Support require to be rectified, and meets mountain strong; Back of the body wood is evenly put, and the back of the body is firm, net laying tiling exhibition; The support height, light and shade is consistent.Coal blasting.
For preventing the explosion support that collapses, crumbles, before explosion, lean on into the supporting in driving face 10m and must reinforce.Used round log frame fork canopy to reinforce excavation support in the past.But be that mine fire prevention stays potential safety hazard because round log belongs to combustible material.Therefore this scheme yields.
The utility model content
There is flammable drawback for round log in the utility model as the mine laneway support, provides a kind of contractibility iron strut to reinforce, and has fire prevention, intensity is high and volume is little advantage.
The technical scheme in the invention for solving the technical problem is: a kind of mine contractibility iron strut, comprise shaft and bar head, and in shaft suit and bar head, and between shaft and bar head, the elasticity jacking mechanism is set.
Described shaft is the cylinder type hollow work durm, and this cylinder type hollow work durm one end solid welding has end socket, and other end solid welding has the nut bearing.
The bar head is a screw rod, and this screw rod Matching installation, on the nut bearing, is equipped with traveling nut at the screw rod upside simultaneously.
The elasticity jacking mechanism is the spring be sleeved in the cylinder type hollow work durm, and the two ends of this spring are pushed up respectively and are pressed on described end socket and screw rod.
The solid welding of screw rod end has ，Gai termination, termination identical with described end socket shape.
Beneficial effect: the utility model is by being used the iron strut, flange beam stand has obtained fine reinforcing, while constructing again, canopy, the explosion support phenomenon that crumbles, collapses do not occur turning over, guaranteed the safety of roadway construction, simultaneously, reduced the repair rate of support, alleviate labor strength, increased the space, job site, obtained good safety benefit.
The accompanying drawing explanation
Figure l is structural representation of the present utility model.
In figure, label 1 is the cylinder type hollow work durm, and 2 is spring, and 3 is the nut bearing, and 4 is end socket, and 5 is screw rod, and 6 is traveling nut, and 7 is termination.
The specific embodiment
Referring to Fig. 1, contractibility iron strut forms: shaft is diameter 50mm cylinder type hollow work durm 1; The bar head is diameter 40mm screw rod 5 and traveling nut 6.The spring 2 of cylinder type hollow work durm 1 interior suit is connected with screw rod 5; Screw rod 5 and cylinder type hollow work durm 1 termination are welded with respectively termination 7 and end socket 4, and it is long that termination 7 and end socket 4 are 60() * 60(is wide) * 50(is thick) the mm steel plate.
Contractibility iron strut using method: contractibility iron strut is beaten in the 10m that meets head on the urgent jail of beating between canopy.6, every canopy, respectively 2, upper side, lower side and top; Usage quantity must not be less than 60.Contractibility iron strut positions on beam: apart from beam-ends 50 mm places.Contractibility iron strut positions on post: one is 200mm place under beam, and another root is the above 300mm of roadway floor place.Contractibility iron strut is installed stringcourse bracing wire allocation in strict tunnel.According to canopy spacing regulating nut, control the length of contractibility iron strut.
Claims (5)
1. a mine contractibility iron strut, is characterized in that: comprise shaft and bar head, in shaft suit and bar head, and between shaft and bar head, the elasticity jacking mechanism is set.
2. mine according to claim 1 contractibility iron strut, it is characterized in that: described shaft is the cylinder type hollow work durm, and this cylinder type hollow work durm one end solid welding has end socket, and other end solid welding has the nut bearing.
3. mine according to claim 2 contractibility iron strut, it is characterized in that: the bar head is a screw rod, this screw rod Matching installation, on the nut bearing, is equipped with traveling nut at the screw rod upside simultaneously.
4. mine according to claim 3 contractibility iron strut is characterized in that: the elasticity jacking mechanism is the spring be sleeved in the cylinder type hollow work durm, and the two ends of this spring are pushed up respectively and are pressed on described end socket and screw rod.
5. mine according to claim 4 contractibility iron strut, it is characterized in that: the solid welding of screw rod end has ，Gai termination, termination identical with described end socket shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203096420U CN203308477U (en) | 2013-05-31 | 2013-05-31 | Yieldable iron support rod for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203096420U CN203308477U (en) | 2013-05-31 | 2013-05-31 | Yieldable iron support rod for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308477U true CN203308477U (en) | 2013-11-27 |
Family
ID=49614692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203096420U Expired - Fee Related CN203308477U (en) | 2013-05-31 | 2013-05-31 | Yieldable iron support rod for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201977A (en) * | 2015-09-21 | 2015-12-30 | 常州齐科化工有限公司 | Easily mounted mandril |
-
2013
- 2013-05-31 CN CN2013203096420U patent/CN203308477U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201977A (en) * | 2015-09-21 | 2015-12-30 | 常州齐科化工有限公司 | Easily mounted mandril |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103628911B (en) | Work plane segmented gob-side entry retaining method is adopted/put to a kind of combining | |
| CN206000543U (en) | A kind of supporting construction protecting lane for gob side entry retaining | |
| CN104074534B (en) | A kind of combining adopts/the gob-side entry retaining method of fully mechanized coal face | |
| CN103967505A (en) | Coal mine underground isolated soft rock mass supporting device used in dynamic pressure environment | |
| CN204716271U (en) | A kind of steel band suspension device that intersects | |
| CN203308477U (en) | Yieldable iron support rod for mine | |
| CN204098954U (en) | Dehydration barricade | |
| CN204140107U (en) | A kind of high anchored force recoverable anchor rod | |
| CN207879355U (en) | A kind of soft-rock tunnel quick supporting truss | |
| CN204299601U (en) | Pier stud type advance timbering | |
| CN204024430U (en) | Adopt the bamboo ladder stand of contiguous block overlapping | |
| CN203847126U (en) | Island soft rock roadway retaining and protecting device in underground dynamic pressure environment of coal mine | |
| CN203783610U (en) | High-strength anchor-net-supported prestressed supporting plate beam | |
| CN203531931U (en) | Underground coal mine excavation working face temporary supporting device | |
| CN204024443U (en) | Adopt the bamboo ladder stand of connector overlapping | |
| CN203891905U (en) | Leg-free shed support | |
| CN203067026U (en) | Gob-side entry retaining filling wall body structure of hollow built-in reinforced rib | |
| CN202090936U (en) | Device for quickly loading resin capsules | |
| CN204002868U (en) | The forestope that a kind of mining excavation is used | |
| CN207686744U (en) | A kind of detachable combined anchor cable rigging | |
| CN204344144U (en) | The anti-wall caving temporary support device of hacking shed tunnel | |
| CN203626857U (en) | Triangular-section beam-circle combination telescopic bracket | |
| CN203066998U (en) | Leading temporary support device for anchor bolt spray roadway | |
| CN205445641U (en) | Hydraulic prop prevents down fixing device | |
| CN205154219U (en) | Scalable temporary support device of face end is tunneled in pit in colliery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20140531 |