CN2136329Y - Wedge structural beam - Google Patents
Wedge structural beam Download PDFInfo
- Publication number
- CN2136329Y CN2136329Y CN 92233614 CN92233614U CN2136329Y CN 2136329 Y CN2136329 Y CN 2136329Y CN 92233614 CN92233614 CN 92233614 CN 92233614 U CN92233614 U CN 92233614U CN 2136329 Y CN2136329 Y CN 2136329Y
- Authority
- CN
- China
- Prior art keywords
- wedge
- girder
- regulating block
- voussoir
- coal
- 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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- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The utility model relates to a wedge structural beam of the hydraulic support of fully-mechanised longwall in the coal mine. The wedge structural beam is in particular suitable for supporting the coal face which is not stable and the fractured roof plate. The wedge structural beam mainly comprises a front wedge beam, a main beam, and an adjusting mechanism which is composed of a jack, a wedge block, and an adjusting block. The beam not only has the advantages of the entire and rigid roof beam but also has the advantages of the hinged roof beam. The beam is used, and the supporting force at the front end of the hydraulic support can be improved by more than ten times. The phenomenon that the rock formation of the roof plate above the track of the coal face is easy to be broken because of the insufficiency of the supporting force at the front end can be effectively controlled, and the rib spalling phenomenon of the coal wall can also be effectively controlled. The industrial accident can be reduced obviously, and the safe working condition of the worker can be improved.
Description
The utility model relates to a kind of wedge structure beam of coal mine fully-mechanized mining working hydraulic support, is specially adapted to fragmentation of supporting coal-face and unstable roof.
At present, the back timber of mining fully-mechanized mining working surface hydraulic support is common articulated roof beam (as shown in Figure 2), and the front portion of anchor point is a front-axle beam 6, and the rear portion is the back rest 7, for making front-axle beam 6 that certain support capacity be arranged, between the front-axle beam 6 and the back rest 7, supporting one or two short column 8.The support capacity of 6 pairs of top boards of front-axle beam depends on the size of short column 8 support forces and the arm of force, because the restriction in structure and space, the design supporting power at front-axle beam 6 tips generally all is no more than 15 tons, and the top board of managing top, coal-winning machine machine road with so little supporting power is very difficult.Particularly when top board was unstable or broken, it was just more impossible to be used for managing top board.Because the deficiency of roof timbering power is sunk the top board of top, machine road too early, absciss layer and fragmentation also makes the rib in the place ahead produce a large amount of wall cavings.These all cause normally supporting of hydraulic support, and top board is difficult to safeguard and influences coal production even stopping production that also the personal safety to the faceman constitutes certain threat.
The purpose of this utility model just is to the coal mine fully-mechanized mining working hydraulic support provides a kind of novel wedge structure beam, the hinged back timber that replaces the existing front-axle beam and the back rest to form.
Below in conjunction with accompanying drawing concrete structure of the present utility model and operating principle are described in detail.
Fig. 1 is the utility model wedge structure girder construction schematic diagram.
Fig. 2 is existing common hinge joint back timber structural representation.
As shown in Figure 1, the utility model Wedge structural beam by front wedge beam 1, girder 2 and by The governor motion that jack 3, voussoir 4 and regulating block 5 form forms. Front wedge beam 1 mutually links with girder 2 and is connected, and governor motion is equipped with regulating block 5 in the circular trough on front wedge beam 1 postbrachium between front wedge beam 1 and girder 2, and the top of regulating block 5 contacts with the following maintenance face of voussoir 4 all the time. Be an inclined-plane below girder 2 front ends, this inclined-plane contacts with the top maintenance face of voussoir 4 all the time. The lower inclined plane of regulating block 5, girder 2 and voussoir 4 consist of mechanical automatic locking mechanism. During carrying, this self-locking structure makes front wedge beam 1 and girder 2 become a rigid stress integral body. Can not surrender during front wedge beam 1 stand under load and bow, have the characteristic of rigidity back timber. So bigger support capacity is arranged. When not carrying, jack 3 is flexible to change the position of voussoir 4. Front wedge beam 1 can upper and lowerly be swung thereupon, adapts to the top board variation to reach, and improves the purpose of a bridge joint top property. When front wedge beam 1 swings up and down, its above postbrachium relatively the angle below the voussoir 4 in continuous variation. The function of regulating block 5 is that it can relatively rotate in the circular trough on front wedge beam 1 postbrachium, changes with the angle that adapts to front wedge beam 1 postbrachium. The top of regulating block 5 contacts with maintenance face below the voussoir 4 all the time, and when guaranteeing that front wedge beam 1 swings to any position, self-locking structure is mechanical self-latching reliably, thereby guarantees the high support capacity of front wedge beam 1.
The utility model Wedge structural beam is compared with the existing various back timbers of hydraulic support, has following good effect:
1, be skillfully constructed, rational in infrastructure, utilize the mechanical self-latching principle to make front wedge beam and girder become the stressed integral body of rigidity.During carrying, the wedge structure beam has the characteristic of rigidity back timber, can make the support capacity of hydraulic support front end improve more than 10 times.The raising greatly of supporting power, make top, coal-winning machine machine road roof strata too early sinking occur because of lacking enough supporting power, absciss layer and the phenomenon and the coal wall caving phenomenon of fragmentation, kiting are controlled has been eliminated and has been produced and the hidden danger of safety two aspects, has improved productivity effect.
2, the front wedge beam in the wedge structure beam can be realized upper and lower swing by governor motion, has increased the compliance of hydraulic support to the top board condition, lays the foundation for managing top board better.
Claims (2)
1, a kind of wedge structure beam, it is characterized in that this structural beams is by front wedge beam (1), girder (2) reaches by jack (3), the governor motion that voussoir (4) and regulating block (5) are formed is formed, front wedge beam (1) is connected with girder (2) hinge joint, governor motion is positioned between front wedge beam (1) and the girder (2), be equipped with in the circular trough on front wedge beam (1) postbrachium regulating block (5), girder (2) front end below be an inclined-plane, this inclined-plane contacts with the top maintenance face of voussoir (4) all the time; Regulating block (5), the lower inclined plane of girder (2) and voussoir (4) constitute mechanical self-latching mechanism.
2, wedge structure beam according to claim 1, it is characterized in that the regulating block (5) in the described governor motion can rotate in the circular trough on front wedge beam (1) postbrachium, the top of regulating block (5) contacts with the following maintenance face of voussoir (4) all the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233614 CN2136329Y (en) | 1992-09-19 | 1992-09-19 | Wedge structural beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233614 CN2136329Y (en) | 1992-09-19 | 1992-09-19 | Wedge structural beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2136329Y true CN2136329Y (en) | 1993-06-16 |
Family
ID=33775888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92233614 Expired - Fee Related CN2136329Y (en) | 1992-09-19 | 1992-09-19 | Wedge structural beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2136329Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536290A (en) * | 2012-03-23 | 2012-07-04 | 郑州四维机电设备制造有限公司 | Face guard lockout mechanism |
-
1992
- 1992-09-19 CN CN 92233614 patent/CN2136329Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536290A (en) * | 2012-03-23 | 2012-07-04 | 郑州四维机电设备制造有限公司 | Face guard lockout mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |