CN2755281Y

CN2755281Y - Hydraulic stand of pillar extraction

Info

Publication number: CN2755281Y
Application number: CN 200420086325
Authority: CN
Inventors: 李海宁; 曹小荣; 鲍鲁德
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-06
Filing date: 2004-12-06
Publication date: 2006-02-01
Anticipated expiration: 2014-12-06

Abstract

The utility model relates to a hydraulic stand for the residual coal pillar recycle mining of pillar type coal, which comprises a front bracket and a rear bracket, and the brackets are connected by pushing a jack. Each bracket is composed of a base, a top beam, and a plurality of hydraulic pillars arranged between the base and the top beam. A guide bar is arranged between the front bracket and the rear bracket. In actual application, one group of hydraulic stands is respectively arranged on the left side and the right side of the coal pillars under mining or between every adjacent coal pillars of coal pillars rows under mining. Under the supporting action of the hydraulic stands to a roof plate, users can carry out recycle mining to the coal pillars under mining in sequence. After the mining of one coal pillar is completed, the hydraulic stand group can be moved to the position corresponding to a next coal pillar for preparing the recycle mining of the next coal pillar.

Description

The coal pillar mining hydraulic support

Technical field

The utility model belongs to coal mining facility technology field, relates to a kind of house column type coal mining reclaims exploitation to abandoned coal pillar hydraulic support that is used for.

Background technology

Room and pillar mining is a kind of simply and cheaply coal production technology, still also has the suitable scope of application in China so far.In the manufacturing process of utilizing house column type technology to mine, for guaranteeing the safety of operation field, the constructor will reserve a great deal of every the goaf of certain area coal column supports to prevent that the top, ore deposit from subsiding roof strata, but can't reclaim at present these abandoned coal pillars, thereby cause the serious waste of coal resources.

The utility model content

The purpose of this utility model is the problem that prior art exists is solved, so provide a kind of rational in infrastructure, easy to operate, be used in the house column type coal mining reclaims exploitation fully to abandoned coal pillar coal pillar mining hydraulic support.

Be used to realize that the technical solution of foregoing invention purpose is such: the coal pillar mining hydraulic support that is provided is a kind of many groups rock stratum roof plate suspension device that is arranged on the adjacent side of goaf coal column place, every group of device comprises by passing side arm and after-frame two assistant supports that jack connects, every assistant support by base, back timber and be arranged on base and back timber between many hydraulic vertical props constitute, between side arm and after-frame, be provided with guide peg, the tail end of the front end of guide peg and side arm base is hinged, in the middle dead slot of the left and right sides seat-box of the rear portion insertion after-frame base of guide peg.In the actual application, settle one group of this hydraulic support, can treat coal mining post each coal column in the ranks at hydraulic support successively under to the supporting role of top board and reclaim exploitation in the left and right sides of the post of waiting to mine or between the capable every adjacent coal column of the post of waiting to mine; Whenever after having adopted a coal column, the hydraulic support group that is in the goaf just can move forward to the capable correspondence position of next coal column, for the capable recovery of next coal column exploitation ready, finally by this one by one, the exploitation form of coal column just can be finished the whole recovery mining operations to whole exploiting field abandoned coal pillar line by line.

Compared with prior art, the utlity model has design scheme rationally, simple and ingenious structure, easy and safe to operate, advantage such as be easy to apply, it efficiently solves the process problem of the recovery exploitation of abandoned coal pillar in the house column type coal mining, on structure is provided with, connect front and back two assistant supports simultaneously, solved the walking of support and turned to problems such as mobile in the mode of pulling in front and others push behind by passing jack.

Description of drawings

Fig. 1 is the front view of a specific embodiment structure of the utility model.

Fig. 2 is the base connection diagram of side arm and after-frame among Fig. 1.

Fig. 3 is the lateral view of Fig. 1.

Fig. 4 is I part among Fig. 1 (increasing resistance mechanism) enlarged drawing.

Fig. 5 is a working method schematic diagram of the present utility model.

The specific embodiment

Referring to accompanying drawing, coal pillar mining hydraulic support described in the utility model comprises side arm and after-frame two assistant supports, two assistant supports can be identical network structures, it also can be different network structures, every assistant support is formed by back timber 6, base 7 and hydraulic vertical prop (oil cylinder) 5, hydraulic vertical prop (oil cylinder) 5 is supported between back timber 6 and the base 7 and plays the main support effect, and side arm and after-frame can adopt single pair of column, double four columns at the same time or separately or arrange many columns support body more in the practical structures.Between the base 7 of side arm and after-frame, connect by passing jack 8, the both sides of frame base 7 before and after passing jack 8 can symmetrical be located at, also can be located between side arm base rear end and the after-frame base front end, the mode of drawing after-frame and after-frame to push away side arm by side arm during work realizes that the walking of whole hydraulic support moves and turn to mobile.Be provided with guide peg 9 between forward and backward base, the tail end of the front end of guide peg 9 and side arm base is hinged, and insert in middle the dead slot of left and right sides seat-box of after-frame base at the rear portion of guide peg 9, in walking with turn to and play the guiding role in mobile.Be provided with at the rear portion of base 7 and increase resistance mechanism's (seeing Fig. 4 for details), increasing resistance mechanism constitutes by increasing resistance jack 10 and plate 11, the head of plate 11 has the profile of tooth plug-in unit, under the effect that is increasing resistance jack 10,, the profile of tooth plug-in unit realizes push away (the drawing) of another support on the same group moved with the moving resistance that increases this support thereby inserting base plate.Be provided with side guard board 12 in the both sides of back timber 6, be provided with flat to jack 13 in back timber 6 lower ends, the upper end of side guard board 12 and back timber 6 are hinged, bottom and jack 13 tops hinge connection, plate body can under jack 13 effect, do by vertically to level to swing (referring to Fig. 3), side guard board 12 can increase the shielding area of support after open both sides.

Operating principle of the present utility model as shown in Figure 5, settle one group of hydraulic support A in the left and right sides of the post of waiting to mine or between the capable every adjacent coal column of the post of waiting to mine, hydraulic support A to the supporting role of top board under the constructor treat the coal mining post successively and reclaim exploitation, whenever after having adopted a coal column, the hydraulic support A that is in the goaf just can move forward to the correspondence position of next coal column, reclaims in order to the exploitation to next coal column.Number in the figure 1 is coal column to be exploited; 2 is the coal column of exploiting; 3 for to open by the coal column position after adopting.

Claims

1, a kind of coal pillar mining hydraulic support, it is characterized in that comprising by passing side arm and after-frame two assistant supports that jack (8) connects, every assistant support by base (7), back timber (6) and be arranged on base (7) and back timber (6) between many hydraulic vertical props (5) constitute, between side arm and after-frame, be provided with guide peg (9), the front end of guide peg (9) and the tail end of side arm base are hinged, in the middle dead slot of the left and right sides seat-box of the rear portion insertion after-frame base of guide peg (9).

2, coal pillar mining hydraulic support as claimed in claim 1 is characterized in that said side arm and after-frame can adopt single pair of column or double four columns at the same time or separately or arrange many columns support body more.

3, coal pillar mining hydraulic support as claimed in claim 1 or 2 is characterized in that being provided with at the rear portion of bracket base (7) and increases resistance mechanism, and the said resistance mechanism that increases is by increasing resistance jack (10) and plate (11) formation, and the head of plate (11) has the profile of tooth plug-in unit.

4, coal pillar mining hydraulic support as claimed in claim 1 or 2, it is characterized in that being provided with side guard board (12) in the both sides of back timber (6), be provided with flat to jack (13) in back timber (6) lower end, the upper end of side guard board (12) and back timber (6) are hinged, bottom and jack (13) top hinge connection, plate body can jack (13) effect do down by vertical to level to swing.

5, coal pillar mining hydraulic support as claimed in claim 1 or 2, it is characterized in that passing jack (8) be located at before and after frame bases (7) both sides or be located at the side arm base rear end and after-frame base front end between.