CN202832600U - Large-spaced ultra-thin coal seam hydraulic support - Google Patents

Large-spaced ultra-thin coal seam hydraulic support Download PDF

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Publication number
CN202832600U
CN202832600U CN 201220485657 CN201220485657U CN202832600U CN 202832600 U CN202832600 U CN 202832600U CN 201220485657 CN201220485657 CN 201220485657 CN 201220485657 U CN201220485657 U CN 201220485657U CN 202832600 U CN202832600 U CN 202832600U
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CN
China
Prior art keywords
coal seam
hydraulic support
base
back timber
double
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Expired - Fee Related
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CN 201220485657
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Chinese (zh)
Inventor
温荣升
孙林
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XUZHOU TIANNENG ELECTRICAL MECHANICAL CO Ltd
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XUZHOU TIANNENG ELECTRICAL MECHANICAL CO Ltd
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Priority to CN 201220485657 priority Critical patent/CN202832600U/en
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Publication of CN202832600U publication Critical patent/CN202832600U/en
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Abstract

The utility model discloses a large-spaced ultra-thin coal seam hydraulic support, and belongs to the technical field of coal mine supporting equipment. The large-spaced ultra-thin coal seam hydraulic support comprises a front-extending beam, a dual-telescopic frame-moving jack, a top beam, a coal blocking board, a frame-moving jack supporting seat and the like. Four guide cylinders are fixed on the lower portion of the top beam and are connected with a dual-telescopic stand column, the upper end of the first level cylinder body of the dual-telescopic stand column is provided with a lengthened cylinder, and the base seat of the dual-telescopic stand column is divided into a front stand column base seat and a rear stand column base seat. The large-spaced ultra-thin coal seam hydraulic support is high in supporting and protecting efficiency, simple in structure, convenient to maintain, low in cost, large in ventilation area, and large in access space, and is particularly suitable for the supporting and protecting of a working face of a thin coal seam with the thickness of 0.5 - 1.3m.

Description

The ultra-thin coal seam of large space hydraulic support
Technical field
The utility model relates to a kind of mining equiment, is specifically related to the hydraulic support that a kind of thin seam working surface supporting is used.
Background technology
At present, according to the classification of coal seam heavy back, mining height is that the coal seam of 0.5-1.3 rice is girdle, and the shared reserves of China's girdle are 17.5 ℅ of gross reserves, and many mining area, particularly south and southwest girdle are main mining coal seams.Because exploitation is difficult, efficient is low, condition of work is relatively poor, the exploitation of girdle is the difficult problem of coal mining always.The girdle support apparatus is to increase work efficiency and the key of safety, mostly adopts now hydraulic prop that work plane is carried out supporting, labor strength height, inefficiency, has more potential safety hazard.Some Coal Exploitation carries out face timbering with hydraulic shield support or hydraulic chock, but these hydraulic supports have base member and hydraulic vertical prop, back timber to be connected to integral device.Because narrow space, personnel can only creep below hydraulic support, work situation is abominable, and the thickness of base has reduced workman's activity space and draught area, has affected workman's efficiency and production safety.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the utility model provides the ultra-thin coal seam of a kind of large space hydraulic support, and supporting stability is good, and activity space is large, and the supporting stroke is large, can adapt to preferably the supporting of thin seam working surface.
The utility model is achieved by the following technical solution: the ultra-thin coal seam of a kind of large space hydraulic support, it comprises back timber, beam before the front end of back timber is installed, the rear end lower of back timber is installed spillplate, it is characterized in that: described back timber bottom is fixed with four guide cylinders, before four guide cylinders are divided into, rear two groups, two guide cylinders of every group are symmetrical arranged, a double-telescopic upright post is installed in each guide cylinder, before described double-telescopic upright post is divided into, rear two groups, the upper plate that withstands back timber in the described back timber is stretched in the upper end of described double-telescopic upright post, and hinged by bearing pin and back timber, the lower end spherical hinge of described double-telescopic upright post is connected on the base, described base is separated into front column base and rear column base, before front column base and rear column base are separately positioned on, the lower end of rear two groups of double-telescopic upright posts, be equipped with on the described front column base and move the frame jacking bracket, move to be hinged with on the frame jacking bracket and move the frame jack.
There is the cylinder of lengthening the upper end of the one-level cylinder body of described double-telescopic upright post.
The described frame jack that moves is two flexible frame jack that move.
Described front column base is divided into the front base of two separation, is installed in respectively the lower end of front group of two double-telescopic upright posts, described moving between the front base that the frame jacking bracket is hinged on two separation.
Described rear column base is divided into the rear base of two separation, is installed in respectively the lower end of rear group of two double-telescopic upright posts.
Be fixed with gusset between described guide cylinder and the described back timber.
The beneficial effects of the utility model are:
1, the unsplit bedplate with routine is divided into the forward and backward split base that separates, the split base adopts sphere to be articulated and connected with two flexible hydraulic vertical props, the irregularity degree that can adapt to greatest extent base plate and the base plate of various hardness, having guaranteed does not have spacial base under the passage, effectively increased the height space that the pedestrian passes through.
2, two flexible hydraulic vertical props are separately fixed in the guide cylinder of back timber bottom, and the inwall of guide cylinder has guide effect to two flexible hydraulic vertical props, guarantee that two flexible hydraulic vertical props can stretch out and indentation perpendicular to back timber.
3, hydraulic support for low coal seam pedestrian spatial altitude is low, and the inconvenience of personnel's move operation for the ease of workman's operation, is adopted the two flexible hydraulic vertical prop of large magnification.Because the guiding length of guide cylinder is inadequate, need to increase the guiding length of two flexible hydraulic vertical props outside, so increase in the upper end of the one-level cylinder body of double-telescopic upright post the cylinder of lengthening is arranged, guaranteed guiding length.
4, adopt two flexible frame jack that move, the effect that moves the frame jack is chute and the mobile hydraulic support of passing drag conveyor, the stroke that moves the frame jack is generally 0.6-1 rice, the frame jack that moves that now all various types of hydraulic supports adopt is single flexible advancing jack, its shortcoming is to take up room greatly, take the walkway space after the installation, affect the current of personnel.The utility model adopts and twoly flexiblely to move the frame jack, can effectively shorten installing space, has increased to greatest extent the pedestrian space.
5, the utility model is compared with the hydraulic support for low coal seam of four connecting rods or single wobbling pole and buttress formula form, have the advantage that supporting efficient is high, simple in structure, easy to maintenance, cost is low, draught area is large, the walk space is large, being adapted to especially coal seam thickness is the supporting of the work plane of 0.5-1.3 rice girdle.
Description of drawings
The below further specifies the utility model with embodiment with reference to the accompanying drawings.
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the C-C sectional view of Fig. 2.
Among the figure: 1, front beam; 2, move the frame jack; 3, back timber; 3-1, guide cylinder; 4, rear column base; 5, spillplate; 6, front column base; 7, move the frame jacking bracket; 8, double-telescopic upright post; 8-1, lengthening cylinder.
The specific embodiment
Such as Fig. 1, Fig. 2, Fig. 3, the ultra-thin coal seam of a kind of large space hydraulic support shown in Figure 4, it comprises back timber 3, beam 1 before the front end of back timber 3 is installed, the rear end lower of back timber 3 is installed spillplate 5, it is characterized in that: described back timber 3 bottoms are fixed with four guide cylinder 3-1, before four guide cylinder 3-1 are divided into, rear two groups, two guide cylinder 3-1 of every group are symmetrical arranged, a double-telescopic upright post 8 is installed in each guide cylinder 3-1, before described double-telescopic upright post 8 is divided into, rear two groups, the upper plate that withstands back timber 3 in the described back timber 3 is stretched in the upper end of described double-telescopic upright post 8, and hinged by bearing pin and back timber 3, the lower end spherical hinge of described double-telescopic upright post 8 is connected on the base, described base is separated into front column base 6 and rear column base 4, before front column base 6 and rear column base 4 are separately positioned on, the lower end of rear two groups of double-telescopic upright posts 8, be equipped with on the described front column base 6 and move frame jacking bracket 7, move to be hinged with on the frame jacking bracket 7 and move frame jack 2.
There is the cylinder of lengthening 8-1 the upper end of the one-level cylinder body of described double-telescopic upright post 8.
The described frame jack 2 that moves is two flexible frame jack that move.
Described front column base 6 is divided into the front base of two separation, is installed in respectively the lower end of front group of two double-telescopic upright posts 8, described moving between the front base that frame jacking bracket 7 is hinged on two separation.
Described rear column base 4 is divided into the rear base of two separation, is installed in respectively the lower end of rear group of two double-telescopic upright posts 8.When channel base plate was softer, the rear base of two separation can be merged into a unsplit bedplate.
Be fixed with gusset between described guide cylinder 3-1 and the described back timber 3.
The utility model by the sphere of double-telescopic upright post 8 bottoms and rear column base 4, front column base 6, the sphere needling hinged fixing, can swing in certain limit, can adapt to preferably the different hardness of floor undulation and the variation of various planeness.The pedestrian in the middle of forward and backward group of double-telescopic upright post 8 by the time, can not occupy the pedestrian space and affected currently because of base being arranged and moving the frame jack, made things convenient for to greatest extent workman's current and operation.Twoly flexible move frame jack 2 certain hunting range can be arranged in moving frame jacking bracket 7, the both sides and 6 employings of front column base that move frame jacking bracket 7 are articulated and connected, and can both finish normally the work of passing scrapper conveyor chute and mobile hydraulic support so that move the frame jack under different base plate conditions.The utility model is compared with the hydraulic support for low coal seam of four connecting rods or single wobbling pole and buttress formula form, have the advantage that supporting efficient is high, simple in structure, easy to maintenance, cost is low, draught area is large, the walk space is large, being adapted to especially coal seam thickness is the supporting of the work plane of 0.5-1.3 rice girdle.

Claims (6)

1. the ultra-thin coal seam of large space hydraulic support, it comprises back timber (3), beam (1) before the front end of back timber (3) is installed, the rear end lower of back timber (3) is installed spillplate (5), it is characterized in that: described back timber (3) bottom is fixed with four guide cylinders (3-1), before four guide cylinders (3-1) are divided into, rear two groups, two guide cylinders (3-1) of every group are symmetrical arranged, a double-telescopic upright post (8) is installed in each guide cylinder (3-1), before described double-telescopic upright post (8) is divided into, rear two groups, the upper plate that withstands back timber (3) in the described back timber (3) is stretched in the upper end of described double-telescopic upright post (8), and hinged by bearing pin and back timber (3), the lower end spherical hinge of described double-telescopic upright post (8) is connected on the base, described base is separated into front column base (6) and rear column base (4), before front column base (6) and rear column base (4) are separately positioned on, the lower end of rear two groups of double-telescopic upright posts (8), be equipped with on the described front column base (6) and move frame jacking bracket (7), move to be hinged with on the frame jacking bracket (7) and move frame jack (2).
2. the ultra-thin coal seam of large space according to claim 1 hydraulic support is characterized in that: there is the cylinder of lengthening (8-1) upper end of the one-level cylinder body of described double-telescopic upright post (8).
3. the ultra-thin coal seam of large space according to claim 1 and 2 hydraulic support is characterized in that: the described frame jack (2) that moves is two flexible frame jack that move.
4. the ultra-thin coal seam of large space according to claim 1 and 2 hydraulic support, it is characterized in that: described front column base (6) is divided into the front base of two separation, be installed in respectively the lower end of front group two double-telescopic upright posts (8), described moving between the front base that frame jacking bracket (7) is hinged on two separation.
5. the ultra-thin coal seam of large space according to claim 1 and 2 hydraulic support, it is characterized in that: described rear column base (4) is divided into the rear base of two separation, is installed in respectively the lower end of rear group two double-telescopic upright posts (8).
6. the ultra-thin coal seam of large space according to claim 1 hydraulic support is characterized in that: be fixed with gusset between described guide cylinder (3-1) and the described back timber (3).
CN 201220485657 2012-09-22 2012-09-22 Large-spaced ultra-thin coal seam hydraulic support Expired - Fee Related CN202832600U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220485657 CN202832600U (en) 2012-09-22 2012-09-22 Large-spaced ultra-thin coal seam hydraulic support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220485657 CN202832600U (en) 2012-09-22 2012-09-22 Large-spaced ultra-thin coal seam hydraulic support

Publications (1)

Publication Number Publication Date
CN202832600U true CN202832600U (en) 2013-03-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103277127A (en) * 2013-05-30 2013-09-04 天地科技股份有限公司 Ultrathin seam hydraulic support
CN110469355A (en) * 2019-09-24 2019-11-19 周美钢 The Split type hydraulic support of ultra-thin coal seam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103277127A (en) * 2013-05-30 2013-09-04 天地科技股份有限公司 Ultrathin seam hydraulic support
CN110469355A (en) * 2019-09-24 2019-11-19 周美钢 The Split type hydraulic support of ultra-thin coal seam

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130327

Termination date: 20130922