CN101482025B

CN101482025B - Light hydraulic support

Info

Publication number: CN101482025B
Application number: CN200810000399A
Authority: CN
Inventors: 李泽宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-10
Filing date: 2008-01-10
Publication date: 2012-09-05
Anticipated expiration: 2028-01-10
Also published as: CN101482025A; WO2009089769A1

Abstract

The invention discloses a light weight hydraulic support for the underground coal face of a coal mine, comprising: a top beam 1, a protracted beam 5, two connecting pieces 16, a hydraulic pillar 8, a tail beam 9 articulated with the top beam 1 through a pin 10. The light weight hydraulic support is characterized in that the connecting pieces 16 with end connected with the adjacent top beam 1 are connected to the main top beam 1 through a moving element 26 which is capable of moving horizontally. When a top plate is relatively horizontal, the connecting pieces 16 are shorter usually to be pulled as approximately horizontal straight lines, so that the directional regulation becomes difficult, at this time, the extended connecting pieces 16 are loose through the horizontal movement of the moving element to form the allowance for regulating the support so as to easily regulate the direction and the space of the support. The light weight hydraulic support is especially adapted for using on the working face of a non-horizontal top plate. When being used on the working face of a horizontal top plate, the light weight hydraulic support is capable of reducing the magnitude of a lifting pillar and saving the time for moving the support.

Description

A kind of light hydraulic support

Technical field

The present invention relates to a kind of light hydraulic support that is used for coal-face supporting roof under the coal mine.

Background technology

Hydraulic support divides fully mechanized mining supporter and slippage bracket two big classes, and the present invention is used for marginal a kind of hydraulic support.The applicant had once designed a kind of chain suspension type hydraulic support (one Chinese patent application ZL200520019152.2) for the shortcoming that overcomes above-mentioned two big types of supports; The hinged frame cylinder that moves of its back timber one side; Move the frame cylinder and promote sliding part in the slip of back timber side, sliding part links to each other with the flexible piece that links to each other with adjacent frame.Pillar is let out to carry and back timber is dropped to fully held by flexible piece when moving frame, stretches or contracts and move the frame cylinder and drive sliding part and slide, thereby make the back timber reach, and setting prop props up tightly more afterwards.When top board not at ordinary times; Need select flexible piece longlyer, at this moment support moves frame and transfers frame all very convenient, and this explains that this cover mechanism is to ceiling compliance is not stronger; But when top board more often hopes that flexible piece shortens; If at this moment two gaps increase to the upper limit that flexible piece allows flexible piece near level, so increased the difficulty of transferring frame, also increased the time of accent frame.If also with long flexible piece, the distance that needs in the time of back timber being fallen to held fully by flexible piece is just big under ceiling, promptly the post leg distance that need improve is just big, and this has just influenced the advancing velocity of entire working surface.

Summary of the invention

The purpose of this invention is to provide and a kind ofly can guarantee to strengthen the adaptive capacity of flexible piece under the less prerequisite of putting forward the leg amount of pillar the frame spacing, laborsaving, move the hydraulic support of frame and adjusting bracket spacing quickly.In order to address the above problem, a kind of light hydraulic support of the present invention comprises back timber, hydraulic prop; Preceding beam and preceding beam oil cylinder, retaining cash device or Caving Coal device, the sliding part that on the guide rail of back timber, slides; With sliding part hinged move the frame cylinder; But it is characterized in that be provided with at least between two adjacent back timbers one be in accent move left and right under the promotion of cylinder moving member, moving member with transfer hingedly to an end of cylinder, transfer the other end to be hinged on the back timber to cylinder; An end of moving member and chain is hinged simultaneously, and the other end of chain is hinged on the sliding part of adjacent back timber.

Like foregoing a kind of light hydraulic support, it is characterized in that moving member is that an end and back timber are hinged, the vertical pendulum linkage that the other end can swing and be connected with chain.

Like foregoing a kind of light hydraulic support, it is characterized in that moving member is the slide block that can horizontally slip along the guide rail on the back timber.

After adopting such structure, can guarantee to strengthen the adaptive capacity of connector under the less prerequisite of putting forward the leg amount of pillar to the frame changes in spacing; Can laterally transfer the flexible of frame cylinder through control; Moving member is moved, thereby regulate holder orientation flexibly and comfortably, simultaneously direct adjusting bracket spacing also.Owing to laterally transfer the frame cylinder to be close to below the back timber, be installed in two seams between the back timber and move the frame cylinder, so be difficult for crumbling when blowing out, adopt so can be used for big gun.All used the structure that connects to all movable flexible pieces such as chain freely of all directions between each back timber of a kind of light hydraulic support of the present invention; So not only transfer frame laborsaving; And the up and down scope of any one back timber is all bigger, therefore is best suited for the not supporting of ceiling.

Simultaneously, because the support of entire working surface is connected as a single entity through connectors such as chains, so can prevent down frame effectively.Since back timber can do broad so can not tie up the top net during Caving Coal, reduced cost of ton coal.And owing to all pillars of support can move forward synchronously, so integral bottom girder can be installed and move the slide cylinder, so it is fast to move frame.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done explanation in further detail.

Fig. 1 is the front view of first kind of embodiment of a kind of light hydraulic support of the present invention.

Fig. 2 is the vertical view of first kind of embodiment of a kind of light hydraulic support of the present invention under user mode.

Fig. 3 enlarged drawing that to be first kind of embodiment medium chain of a kind of light hydraulic support of the present invention be connected with slide block with moving member and chain.

The enlarged drawing that but the moving member of this move left and right is connected with adjacent frame sliding part in Fig. 4 second kind of embodiment of a kind of light hydraulic support that be the present invention.

Fig. 5 is the vertical view when two propulsion cylinder cribbings are used with no propulsion cylinder cribbing in the third embodiment of a kind of light hydraulic support of the present invention.

Fig. 6 is the front view of the 4th kind of embodiment of a kind of light hydraulic support of the present invention.

Fig. 7 is the sectional view at flexible four bar slide block mechanism places in the 5th kind of embodiment of a kind of light hydraulic support of the present invention.

Fig. 8 is the sectional view at perpendicular guide rail slide block mechanism place in the 6th kind of embodiment of a kind of light hydraulic support of the present invention.

The specific embodiment

In conjunction with Fig. 1, Fig. 2 and Fig. 3, first kind of embodiment of a kind of light hydraulic support of the present invention comprises integral top beam 1; Can be along the sliding part 13 and sliding part 23 of the lower guideway on the back timber 1 22 with upper rail 24 slips; One end is hinged through pin 17 and moving member 26, the other end through pin 15 respectively with the back timber 1 of adjacent frame on two hinged chains 16 of sliding part 13 and sliding part 23; Through the hinged moving member 26 of pin 30 and back timber 1; One end is hinged through pin 27 and moving member 26, the other end through the hinged accent of pin 31 and back timber 1 to cylinder 29; Hydraulic prop 8 from back timber 1 vertical below; Piston rod is hinged with back timber 1 rear end of support through pin 11, and an end of cylinder body is hinged through pin 18 and sliding part 23, the propulsion cylinder 12 that the other end of cylinder body is connected with sliding part 13; One end is hinged through pin 19 and sliding part 23, and the other end is through the back timber 1 front end hinged force transmission element 20 of pin 21 with adjacent frame support; Through pin 10 and the hinged tail boom 9 in back timber 1 rear end; Through the hinged preceding beam oil cylinder 7 in pin 14 and back timber 1 rear end with through the hinged preceding beam 5 of pin 6.

As shown in Figure 2, a kind of light hydraulic support is in the frame state that moves, and this moment, the 1st support and the 2nd support moved a step pitch, and the 3rd support to be ready moving forward.At first the pillar 8 below the 3rd the back timber 1 is carried post; Back timber 1 descends; The left side of back timber 1 is by being suspended on the 2nd the adjacent with it back timber 1 with sliding part 13 and sliding part 23 two hinged chains 16 at this moment, and its right side is suspended on the 4th the back timber 1 adjacent with the right side by the chain 16 that two other is hinged on the moving member 26.At this moment; If want to make the 3rd support to turn to or the adjusting bracket spacing; Can stretch out the piston rod of forward and backward accent as required, promote moving member 26 and rotate, transfer when the maximum of cylinder 29 is stretched out scope when approaching around pin 30 to cylinder 29; Location structure 32 on the moving member 26 can be run into back timber 1 location, transfers to cylinder 29 with protection.The piston rod of the propulsion cylinder 12 in the 3rd support left side shrinks at this moment, spurs the back timber 1 of the 3rd support forward through the force transmission element 20 that is hinged on support 2 front ends; The piston rod of hinged propulsion cylinder 12 stretches out in the 3rd set cap 1 right side and the 4th back timber 1 rear end; Promote sliding part 23; Sliding part 23 is through promoting the back timber 1 of the 3rd support forward with the back timber 1 hinged force transmission element 20 of the 3rd support, and support 3 just can move forward a step like this.

In conjunction with Fig. 3, when the frame spacing increased, chain 16 can be drawn as the straight line near level, caused and transferred frame and back timber 1 to connect the top difficulty, transferred this moment the piston rod to cylinder 29 to stretch out, and chain 16 will relax, and returns to normal operating condition.So can when moving frame, carry post less to accelerate advancing velocity.

In conjunction with Fig. 4, the move left and right of moving member horizontally slips on guide rail 3 by moving member 4 and realizes in second kind of embodiment, and connecting rod 2 has replaced the chain 16 in first kind of embodiment.Certainly also be fine with chain 16 here.

In conjunction with Fig. 5; The difference of the third embodiment and first kind of embodiment is that it is not that a propulsion cylinder 12 is all arranged on each back timber; But the 1st, 3, the 5...... frame has two propulsion cylinders; 2nd, 4, the 6...... frame do not have propulsion cylinder, to move earlier when moving frame do not have propulsion cylinder, after move 2 propulsion cylinders.Certainly the frame method of moving commonly used is to move the 2nd, 4 earlier in the down-hole, moves the 1st, 3 again, then moves the 6th, 8, moves the 5th, 7 then, and the rest may be inferred.

In addition, transferring, change the shape or the structure of moving member 26, or make the rod member combined type to cylinder 29 conversion one upper/lower positions; Some devices commonly used on support of increase and decrease or conversion for example are transformed into the preceding beam of upset etc. to preceding beam 5; Can certainly directly couple together propulsion cylinder 12 and force transmission element 20; Also can moving member 26 be made on the sliding part 13 with (or) on 23; Or changing position or the quantity of moving member 26 on back timber 1 etc., these simple conversion also fall among the protection of the present invention.

Claims

1. be used for a kind of light hydraulic support of coal-face under the coal mine, comprise integral top beam, hydraulic prop; Preceding beam and preceding beam oil cylinder, retaining cash device or Caving Coal device, the sliding part that on the guide rail of back timber one side, slides; With sliding part hinged move the frame cylinder; But it is characterized in that between per two adjacent back timbers, being provided with at least one be in accent move left and right under the promotion of cylinder moving member, moving member with transfer hingedly to an end of cylinder, transfer the other end to be hinged on the back timber to cylinder; An end of moving member and chain is hinged simultaneously, and the other end of chain is hinged on the sliding part of adjacent back timber.

2. a kind of light hydraulic support as claimed in claim 1 is characterized in that moving member is that an end and back timber are hinged, the vertical pendulum linkage that the other end can swing and be connected with chain.

3. a kind of light hydraulic support as claimed in claim 1 is characterized in that moving member is the slide block that can horizontally slip along the guide rail on the back timber.