CN201318183Y

CN201318183Y - Closed type combined hydraulic support

Info

Publication number: CN201318183Y
Application number: CNU2008201776486U
Authority: CN
Inventors: 王思聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-24
Filing date: 2008-11-24
Publication date: 2009-09-30
Anticipated expiration: 2018-11-24

Abstract

The utility model relates to a closed type combined hydraulic support of a coal face roof support, which comprises a top beam, a base, a shield beam, a swing rod, jacks, hydraulic props, a front joist and a rear joist, and is characterized in that a plurality of hydraulic props are arranged uprightly and tiltingly between the top beam and the base; the upper end of the shield beam is articulated with the rear part of the top beam, and the lower end thereof is articulated with the rear part of the base by the swing rod; the front joist and the rear joist are hung below the top beam; the top beams of adjacent supports are connected together by the front joist and the rear joist; both ends of the top beam jack are arranged on the top beam and the rear joist; and the base is provided with a base jack. The hydraulic support has simple structure, light weight, convenient and labor saving installation and transportation, easy and fast operation, good integrity, stability and directivity, and wide range of application, and can achieve support moving under pressure.

Description

Enclosed assembled hydraulic support

Affiliated technical field

The utility model relates to the hydraulic support of face roof supporting under a kind of coal mine.

Background technology

At present integral top beam combined suspension moving hydraulic support (Chinese patent application number 02100089.1) is generally used at China's medium and small colliery coal-face.The integral top beam combined suspension moving hydraulic support comprises parts such as integral top beam, joist mechanism, hydraulic prop, propulsion cylinder, the back timber broad, and empty top area is little, can not spread the top net; All force pieces are connected as a single entity by joist, realize the support reach by the stretching motion of the propulsion cylinder that is connected with back timber, joist, and support globality, stability are better.

But the aforementioned brackets bottom is an Open architecture, and the rear portion only can be provided with waste rock board up and down, can't form the retaining cash mechanism of sealing at the support rear portion, retaining cash weak effect, and the goaf spoil easily pours in work plane when moving frame, causes moving difficulty.This support is for carrying the leg step-type support, after the hydraulic prop of the support that moves shrinks and breaks away from base plate during reach, set cap is pushed ahead at the holder support effect lower edge of joist mechanism top board, the hydraulic prop bottom of the back timber that moves below be in free overhang, after putting in place, the support reach can only lean on artificial location, mechanization degree is low, and advancing velocity is slow; When using in the inclined cut especially, working strength of workers greatly increases, and is difficult to guarantee the accuracy of hydraulic prop location.The hydraulic prop of support supports separately in addition, it only can increase the contact area with base plate down by the mode of prick post footwear, face roof press or the soft situation of base plate under may surpass the base plate press in strength to floor pressure ratio Air holder, cause hydraulic support to sink, thereby can't effectively support face roof, and cause moving difficulty.

The utility model content

The purpose of this utility model provides a kind of enclosed assembled hydraulic support.This support has been set up mechanisms such as caving shield, base, fork, makes support bottom and rear portion form enclosed construction, has improved the force-bearing situation and the rear portion retaining cash effect of support, has strengthened the anti-ability of sinking of support; This support is convenient to operation, and advancing velocity is fast, and the rear portion protective capacities is strong.

The technical scheme that its technical problem that solves the utility model adopts is as follows:

Enclosed assembled hydraulic support, comprise back timber, front and back joist, caving shield, base, fork, jack, hydraulic prop etc., it is characterized in that: upright or some hydraulic props that are in tilted layout between back timber, the base, the caving shield upper end is hinged with the back timber rear portion, and the lower end is hinged by fork and base rear portion; Joist before and after hang the back timber below, base mounting seat jack, back timber jack are installed between back timber front portion and the back joist.

Described back timber adopts the board-like rigidity back timber of expanded letter, and its width is more smaller than force piece center to center distance (1.5m or 1.25m); The joist connecting rod connects together the front and back joist, and the front and back joist is hung below back timber, and can move forward and backward by relative back timber under the guiding of back timber guide rail; The back timber jack is installed between back timber front portion and the back joist; The front and back joist of adjacent stent connects together by branch sleeve.

Described base adopts monolithic or left and right sides separable type base, is provided with the base jack that is connected with the work plane conveyer in the middle of the base.

Described caving shield is flat box structure, can increase under the situation about needing side guard board is set.

Described fork can be two box structures independently, also can as a whole box structure.

Need under the situation of the spacing guiding of base in the inclined cut etc., the bracket base both sides can increase limiting and guiding device is set, and the adjacent stent base is associated in together by limiting and guiding device.

In coal-face was arranged, working surface hydraulic support was arranged in order along work plane, and joist is associated in together by branch sleeve before and after the adjacent stent.

Compare with the described hydraulic support of " background technology " part, the beneficial effects of the utility model are:

1, the utility model rack mechanical degree height, advancing velocity is fast.

2, the utility model bracket base and work plane base plate contact area increase greatly, have reduced support to the work plane floor pressure ratio Air holder, thereby have strengthened the anti-ability of sinking of support, applicable to the work plane than soft seat.

3, the utility model support has adopted the caving shield structure, has improved the stability of support self, and can prevent that the goaf spoil from pouring in work plane, has improved the rear portion retaining cash ability of support.

4, in the utility model support when reach, only unload, do not carry post as the hydraulic prop of moving support, can realize sliding advance of support, helps controlling breaking roof.

Description of drawings

Fig. 1 is a kind of preferred version embodiment of the utility model front view.

Fig. 2 is the vertical view that a kind of preferred version embodiment of the utility model removes raising-plate.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described further.

In conjunction with Fig. 1, Fig. 2, a kind of preferred version embodiment of the utility model comprises:

Preceding joist 2, back joist 3 are hung in back timber 1 below, and joist connecting rod 4 connects together preceding joist 2, back joist 3, and back timber jack 5 is installed between back timber 1 front portion and the back joist 3, and the branch sleeve 6 on the joist of front and back connects together the front and back joist of adjacent stent.

Mounting seat jack 8 in the middle of the base 7, and link to each other with the work plane conveyer.

Caving shield 9 upper ends and back timber 1 rear portion are hinged, and the lower end is hinged by fork 10 and base 7 rear portions.

Hydraulic prop 11 uprightly is arranged between back timber 1, the base 7.

In the coal-face actual arrangement, enclosed assembled hydraulic support is arranged in order at coal-face, all support combines as a whole by branch sleeve.Below be example with Fig. 1, Fig. 2, the frame process of moving in illustrating that enclosed assembled hydraulic support is actual and using.

1, the coal-winning machine coal cutting is by after the flexible distance of conveyer, and base jack 8 piston rods of bracket base 7 stretch out whole strokes, and the work plane conveyer is pushed into the working face wall place.

2, the hydraulic prop 11 of the support that moves shrinks and mentions, and back timber 1 descends under the self gravitation effect and breaks away from top board, is supportted to pop-up by the both sides set cap by the front and back joist.

3, back timber jack 5 piston rods of back timber 1 below stretch out whole strokes, promote back timber 1 stroke of reach on preceding joist 2, back joist 3; Base jack 8 piston rods on the base 7 shrink whole strokes simultaneously, stroke of pulling base 7 reaches.Under the acting in conjunction of back timber jack 5, base jack 8, stroke of the whole reach of support.

4, after back timber 1, base 7 reaches put in place, fall hydraulic prop 11, roof supporting is finished this reach action.

5, after all supports moved frame and finish, all back timber jack 5 shrank whole strokes, spur stroke of front and back joist reach of all supports.

6, force piece is finished and is moved the frame actuation cycle, restPoses.

Claims

1, a kind of enclosed assembled hydraulic support that is used for coal-face roof timbering under the coal mine, comprise back timber, front and back joist, caving shield, base, fork, jack, hydraulic prop etc., it is characterized in that: upright or some hydraulic props that are in tilted layout between back timber, the base, joist before and after hang the back timber below, the back timber jack is installed on back timber and the back joist, the caving shield upper end is hinged with the back timber rear portion, and the lower end is hinged by fork and base rear portion, base mounting seat jack.

2, enclosed assembled hydraulic support according to claim 1 is characterized in that: the caving shield lower end is set up caving coal tail boom and is put the coal jack, becomes sublevel caving hydrau lic support.

3, enclosed assembled hydraulic support according to claim 1 is characterized in that: the base both sides can increase limiting and guiding device is set, and the adjacent stent base is associated in together by limiting and guiding device.