CN109779666B - Prevent empting safe formula hydraulic support - Google Patents
Prevent empting safe formula hydraulic support Download PDFInfo
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- CN109779666B CN109779666B CN201910115113.9A CN201910115113A CN109779666B CN 109779666 B CN109779666 B CN 109779666B CN 201910115113 A CN201910115113 A CN 201910115113A CN 109779666 B CN109779666 B CN 109779666B
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Abstract
The invention belongs to the field of coal mining supporting equipment, and particularly discloses an anti-toppling safety type hydraulic support which comprises a bottom adjusting mechanism arranged on a support base, wherein the bottom adjusting mechanism comprises rotating sleeves rotatably connected to the front end and the rear end of the support base, sliding sleeves are slidably connected in the rotating sleeves, inserting rods capable of extending into the sliding sleeves on the next support base are slidably connected in the sliding sleeves, and a locking mechanism is connected between the rotating sleeves and the sliding sleeves. The invention can solve the problem of the falling of the hydraulic support caused by the sinking of the base of the hydraulic support due to the soft bottom plate of the working face.
Description
Technical Field
The invention relates to the field of coal mining supporting equipment, in particular to an anti-toppling safety type hydraulic support.
Background
The hydraulic support is an important component of the fully mechanized mining equipment for the coal mine, realizes the movements of lifting, forward moving and the like by taking hydraulic pressure as power, can reliably and effectively support and control a top plate of a working face, isolates a goaf, and prevents gangue from entering a stope working face and a propelling conveyor; the device is matched with a coal mining machine for use, realizes comprehensive mechanization of coal mining, solves the contradiction that roof management lags behind coal mining work in coal mining work, further improves and improves the efficiency of coal mining and transportation equipment, reduces the labor intensity of coal miners, and ensures the life safety of the coal miners to the maximum extent.
In the production process of the fully mechanized coal mining face of a coal mine, particularly the mining of the coal mining face with a large inclination angle, the component force of the dead weight of the support in the inclination direction of the face can make the support slide down along the inclined plane in the moving process of the hydraulic support, and the larger the inclination angle is, the more the support slides down. The hydraulic support is toppled over, so that the top plate management is easy to lose control, and a roof leakage and roof collapse accident is caused. If the roof fall is too large, the working face stops producing, so that coal cannot be produced, personal safety can be endangered in serious cases, and even death accidents can be caused.
The reasons for causing the hydraulic support to topple over are various, one of them reason is that the working face bottom plate is soft or float coal, float the waste rock too much, causes the support base to sink down, and pressure is uneven, and the support base can not flat ground and bottom plate contact, and support stability reduces, leads to the accident of falling over.
Disclosure of Invention
The invention aims to provide an anti-toppling safe hydraulic support, which aims to solve the problem that a base of the hydraulic support sinks to cause toppling of the hydraulic support due to the fact that a bottom plate of a working surface is soft or too much float coal and float waste rock exists.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an anti-toppling safety formula hydraulic support, is including setting up the end adjustment mechanism on the support base, and end adjustment mechanism is including rotating the rotation cover of connecting both ends around the support base, and sliding connection has the slip cap in the rotation cover, and sliding connection has the inserted bar in can stretching into the slip cap on the next support base in the slip cap, and even has locking mechanism between rotation cover and the slip cap.
The principle of the scheme is as follows:
the rotating sleeve is an installation supporting mechanism of the sliding sleeve, and the locking mechanism is used for realizing locking between the rotating sleeve and the sliding sleeve. When the rotating sleeve is in a vertical state, the inner inserted rod of the sliding sleeve is inserted into the working face bottom plate downwards, so that the grabbing force between the original hydraulic support base and the working face bottom plate can be increased. Compared with the method that the friction force between the original support base and the working face bottom plate is simply utilized to prevent slipping and falling, the anti-slipping and anti-falling effect of the original support base can be enhanced by inserting the inserted rod into the working face bottom plate. When the rotating sleeve rotates 90 degrees, the sliding sleeve in the rotating sleeve is changed from a vertical state to a direction along the coal seam inclination. At the moment, the inserted bar in the sliding sleeve extends out and is inserted into the sliding sleeve on the base of the next hydraulic support, the inserted bar and the sliding sleeve on each hydraulic support are matched with each other in sequence, and two long bar-shaped structures are formed on the front side and the rear side of each hydraulic support. When the hydraulic supports move, the hydraulic supports can slide on the long rod-shaped structures, namely the long rod-shaped structures serve as sliding rails when the hydraulic supports move, and the hydraulic supports are guided.
This scheme of adoption can reach following technological effect:
1. when the hydraulic supports move, the inserted rods on the hydraulic supports and the sliding sleeves are matched with each other to form a sliding track for the hydraulic supports to move. Because this slip track is to hydraulic support's support, even there is local soft working face bottom plate, also can avoid the hydraulic support that hydraulic support base sinks to cause to topple over.
2. The sliding sleeves and the inserting rods on the hydraulic supports have two functions, and firstly, when the sliding sleeves are in a vertical state, the inserting rods slide downwards in the sliding sleeves and are inserted into the bottom plate of the working surface, so that the gripping force between the support base and the bottom plate of the working surface is enhanced, and the problem that the hydraulic supports topple over when working is avoided; and when the sliding sleeve is positioned in the coal seam inclination direction, the inserted bar slides along the sliding sleeve and is inserted into the sliding sleeve on the next hydraulic support, so that the inserted bar and the sliding sleeve on each hydraulic support are mutually matched to form a sliding track for the hydraulic support to move, and the problem of toppling over when the hydraulic support moves is avoided. The invention carries out anti-falling treatment in the working state and the frame moving state of the hydraulic support, and has good anti-falling effect.
Furthermore, a partition plate is arranged in the middle of the inside of the sliding sleeve and divides the sliding sleeve into an insertion area and an insertion matching area, the inserted rod is arranged in the insertion area, a bottom adjusting jack is arranged in the insertion area, and the piston end of the bottom adjusting jack is fixedly connected with the inserted rod. The bottom adjusting jack is used for driving the inserted bar to slide in the inserting area of the sliding sleeve, after the hydraulic support frame moving is completed, the piston end of the bottom adjusting jack continues to extend, when the free end of the inserted bar abuts against a partition plate in the sliding sleeve on the next hydraulic support frame, the bottom adjusting jack continues to drive the inserted bar to extend out of the sliding sleeve, and the inserted bar can drive the sliding sleeve to slide and reset on the hydraulic support frame.
Furthermore, a conversion motor for driving the rotating sleeve to rotate is arranged on the support base. The driving through the conversion motor can drive the rotating sleeve to rotate forwards and backwards, so that the sliding sleeve in the rotating sleeve is driven to rotate forwards and backwards, and the vertical direction of the sliding sleeve and the switching along the coal bed inclination direction are realized.
Furthermore, the locking mechanism comprises a locking hydraulic cylinder fixed on the rotating sleeve and a through hole formed in the sliding sleeve, and an output rod of the locking hydraulic cylinder can be inserted into the through hole to realize locking between the rotating sleeve and the sliding sleeve. The output rod of the locking hydraulic cylinder is inserted into the through hole on the sliding sleeve, so that the locking between the rotating sleeve and the sliding sleeve can be realized; the output rod of the locking hydraulic cylinder is pulled out from the through hole on the sliding sleeve, and then the locking between the rotating sleeve and the sliding sleeve can be released.
Furthermore, risers are welded at the front end and the rear end of the support base, and the two rotating sleeves are respectively connected to the two risers in a rotating mode. Because the existing hydraulic support base is directly arranged on the working face bottom plate, and the thickness of the support base is small, the rotation of the rotating sleeve and the sliding sleeve is inconvenient, the vertical plate is directly welded on the existing support base, the rotation of the rotating sleeve and the sliding sleeve is convenient, and the existing hydraulic support structure is not changed.
Drawings
FIG. 1 is a front view of an embodiment of the present invention with the hydraulic mount in a racking position;
FIG. 2 is a schematic view of the hydraulic mount of FIG. 1 in an operational state;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is an enlarged view of portion B of FIG. 3;
fig. 5 is a sectional view taken along line a-a in fig. 3.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the support comprises a support base 1, a vertical plate 2, a sliding sleeve 3, a partition plate 30, a through hole 300, an insertion area 301, an insertion matching area 302, an insertion rod 4, a bottom adjusting jack 5, a rotating sleeve 6, a rotating shaft 60, a locking hydraulic cylinder 7 and a conversion motor 8.
As shown in fig. 1 and 2, the anti-tip-over safety hydraulic prop of the present embodiment includes a bottom-adjusting mechanism disposed on a prop base 1. As shown in fig. 3, 4 and 5, the bottom adjustment mechanism includes a vertical plate 2 welded to the front and rear ends of the bracket base 1, and a rotating shaft 60 penetrating through the vertical plate 2; the inner side of the vertical plate 2 is provided with a conversion motor 8, an output shaft of the conversion motor 8 is welded with a rotating shaft 60, the outer end of the rotating shaft 60 is welded with a rotating sleeve 6, the rotating sleeve 6 is connected with a sliding sleeve 3 in a sliding manner, the middle part in the sliding sleeve 3 is welded with a partition plate 30, and the sliding sleeve 3 is divided into a right insertion area 301 and a left insertion matching area 302 by the partition plate 30; the inserting area 301 is internally and slidably connected with an inserting rod 4, and the inserting rod 4 can extend into the sliding sleeve 3 on the next bracket base 1 and is inserted into the matching area 302; the right end face of the partition plate 30 is provided with a bottom adjusting jack 5, and the piston end of the bottom adjusting jack 5 is welded with the end part of the inserted rod 4. A locking mechanism is connected between the rotating sleeve 6 and the sliding sleeve 3 and comprises a locking hydraulic cylinder 7 fixed on the rotating sleeve 6 and a through hole 300 formed in the sliding sleeve 3, and an output rod of the locking hydraulic cylinder 7 can be inserted into the through hole 300 to realize locking between the rotating sleeve 6 and the sliding sleeve 3.
When the hydraulic supports of the embodiment are in a working state, the sliding sleeves 3 on the hydraulic supports are in a vertical state. At the moment, the output rod of the locking hydraulic cylinder 7 extends and is inserted into the through hole 300 on the sliding sleeve 3, so that the locking of the rotating sleeve 6 and the sliding sleeve 3 is realized; the bottom adjusting jack 5 drives the inserting rod 4 to be downwards inserted into the bottom plate of the working face, so that the grabbing force between the original hydraulic support base 1 and the bottom plate of the working face can be increased. Utilize the frictional force between support base 1 and the working face bottom plate simply to come the antiskid with the tradition and prevent down comparing, insert inserted bar 4 in the working face bottom plate, have the effect of location to support base 1, can strengthen support base 1 antiskid and prevent down the effect.
When the hydraulic support needs to be moved (namely the hydraulic support slides upwards along the coal seam inclination direction), the bottom adjusting jack 5 drives the inserted rod 4 to move upwards for resetting, the conversion motor 8 drives the rotating shaft 60 to rotate, and the rotating shaft 60 drives the rotating sleeve 6 and the sliding sleeve 3 in the rotating sleeve 6 to rotate from the vertical state to the coal seam inclination direction; the bottom adjusting jack 5 drives the inserted rod 4 to slide out of the sliding sleeve 3 and then extend into the insertion matching area 302 of the sliding sleeve 3 on the next hydraulic support. The inserted rods 4 and the sliding sleeves 3 on the hydraulic supports are matched with each other in sequence, and two long rod-shaped rails are formed on the front side and the rear side of each hydraulic support. At the moment, the output rod of the locking hydraulic cylinder 7 is shortened again, the locking between the rotating sleeve 6 and the sliding sleeve 3 is released, and the hydraulic support moves by sliding upwards along the coal seam inclined direction according to the traditional moving method (through a jack between the hydraulic support and a conveyor in a working face). When the hydraulic support moves, the hydraulic support can slide on the long rod-shaped track, namely the long rod-shaped track is used as a moving frame sliding track of the hydraulic support and plays a role in guiding the hydraulic support. When the bottom plate of the working face is locally soft, the sliding rail supports the hydraulic support, so that the hydraulic support caused by the fact that the hydraulic support base 1 sinks down can be prevented from toppling. After the hydraulic support frame moving is completed, the piston end of the bottom adjusting jack 5 continues to extend, and after the free end of the inserted link 4 abuts against the partition plate 30 in the sliding sleeve 3 on the next hydraulic support frame, the bottom adjusting jack 5 continues to drive the inserted link 4 to extend out of the sliding sleeve 3; the inserted rod 4 exerts pressure on the partition 30, and accordingly, the inserted rod 4 is also subjected to the reaction force of the partition 30, so that the inserted rod 4 can drive the sliding sleeve 3 to slide and reset on the hydraulic bracket.
When the hydraulic support is in a working state, the hydraulic support can be inserted into the working face bottom plate through the inserting rod 4, so that the gripping force between the support base 1 and the working face bottom plate is increased; when hydraulic support was in the state of moving, can form the gliding track of confession each hydraulic support through the cooperation of inserted bar 4 with sliding sleeve 3, avoid because the loose problem that causes support base 1 to sink of working face soil property. Namely, the invention carries out the anti-falling treatment in the working state and the moving state of the hydraulic support, and has good anti-falling effect.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (3)
1. The utility model provides an anti-toppling safety formula hydraulic support which characterized in that: the bottom adjusting mechanism comprises rotating sleeves which are rotatably connected to the front end and the rear end of the support base, sliding sleeves are connected in the rotating sleeves in a sliding mode, inserting rods which can extend into the sliding sleeves on the next support base are connected in the sliding sleeves in a sliding mode, a partition plate is arranged in the middle of each sliding sleeve and divides the sliding sleeves into an inserting area and an inserting matching area, the inserting rods are arranged in the inserting areas, bottom adjusting jacks are arranged in the inserting areas, and piston ends of the bottom adjusting jacks are fixedly connected with the inserting rods; and a locking mechanism is connected between the rotating sleeve and the sliding sleeve; and a conversion motor for driving the rotating sleeve to rotate forwards and backwards is arranged on the support base.
2. An anti-tip safety hydraulic prop according to claim 1, characterized in that: the locking mechanism comprises a locking hydraulic cylinder fixed on the rotating sleeve and a through hole formed in the sliding sleeve, and an output rod of the locking hydraulic cylinder can be inserted into the through hole to realize locking between the rotating sleeve and the sliding sleeve.
3. An anti-tip safety hydraulic prop according to claim 1 or 2, characterized in that: the support base front and back end all welds has the riser, and two rotate the cover and rotate respectively and connect on two risers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910115113.9A CN109779666B (en) | 2019-02-14 | 2019-02-14 | Prevent empting safe formula hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910115113.9A CN109779666B (en) | 2019-02-14 | 2019-02-14 | Prevent empting safe formula hydraulic support |
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| Publication Number | Publication Date |
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| CN109779666A CN109779666A (en) | 2019-05-21 |
| CN109779666B true CN109779666B (en) | 2020-09-08 |
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| CN201910115113.9A Active CN109779666B (en) | 2019-02-14 | 2019-02-14 | Prevent empting safe formula hydraulic support |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119966A (en) * | 2020-01-20 | 2020-05-08 | 辽宁鑫丰矿业（集团）有限公司 | Prevent empting and hydraulic support of drunkenness |
| CN111156039A (en) * | 2020-01-20 | 2020-05-15 | 辽宁鑫丰矿业（集团）有限公司 | Fixing and moving method for large-inclination-angle coal mining support |
| CN112647997B (en) * | 2020-12-22 | 2022-05-13 | 临沂矿业集团有限责任公司 | Coal mining protection device based on digitization |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202417540U (en) * | 2012-02-15 | 2012-09-05 | 重庆大江工业有限责任公司 | Antiskid device for high-inclination angle hydraulic support |
| CN102777194B (en) * | 2012-05-30 | 2015-01-07 | 三一重型装备有限公司 | Anti-tipping device for hydraulic support and hydraulic support |
| CN203730021U (en) * | 2013-11-18 | 2014-07-23 | 山西潞安环保能源开发股份有限公司 | Top coal caving hydraulic support group with transverse-pulling and diagonal-pulling tilting prevention device |
| CN204140111U (en) * | 2014-09-30 | 2015-02-04 | 平煤神马机械装备集团河南矿机有限公司 | Hydraulic support tilting prevention device |
| CN205101005U (en) * | 2015-10-26 | 2016-03-23 | 山西晋城无烟煤矿业集团有限责任公司 | Prevent empting end between hydraulic support frame and transfer device |
| CN205400781U (en) * | 2016-03-10 | 2016-07-27 | 山东能源重装集团鲁南装备制造有限公司 | Anti -tilting device for hydraulic supports |
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