CN113460609A - Adjustable cushion frame for head and tail of fully-mechanized mining face conveyor of coal mine thin seam - Google Patents
Adjustable cushion frame for head and tail of fully-mechanized mining face conveyor of coal mine thin seam Download PDFInfo
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- CN113460609A CN113460609A CN202110734630.1A CN202110734630A CN113460609A CN 113460609 A CN113460609 A CN 113460609A CN 202110734630 A CN202110734630 A CN 202110734630A CN 113460609 A CN113460609 A CN 113460609A
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- guide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
- B65G41/001—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames with the conveyor adjustably mounted on the supporting frame or base
- B65G41/003—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames with the conveyor adjustably mounted on the supporting frame or base mounted for linear movement only
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention provides an adjustable cushion frame for the head and the tail of a fully mechanized mining face conveyor of a coal mine thin seam, which comprises a bottom plate, at least two telescopic jacks, two guide plates, a supporting platform and a hydraulic system, wherein the bottom plate is provided with a plurality of guide plates; the two guide plates are vertically fixed on the bottom plate and arranged in parallel, and vertical guide holes are respectively formed in the two guide plates; the supporting platform is a groove-shaped platform, two vertical edges of the groove-shaped platform are parallel and are tightly attached to the inner side surface of the guide plate, the bottom surface of the groove-shaped platform is a supporting surface, guide blocks are arranged on the outer sides of the two vertical edges of the groove-shaped platform corresponding to the guide holes, and connecting lugs are arranged on the guide blocks; the bottom end of the telescopic jack is fixed on the bottom plate, and the top end of the telescopic jack is hinged with the connecting lug; the hydraulic system is connected with the telescopic jack and provides power for the telescopic jack; the adjustable cushion frame has the advantages of large height adjusting range, strong adaptability and high reliability.
Description
Technical Field
The invention relates to coal mine mechanical equipment, in particular to an adjustable cushion frame for a head and a tail of a fully mechanized mining face conveyor of a coal mine thin seam.
Background
At present, the cutting holes of the fully mechanized mining working face of the domestic thin coal seam are generally arranged according to the thickness of the coal seam, the height of two crossheading is higher, the bottom plate of the crossheading is generally lower than the bottom plate of the working face, and a step is arranged between the bottom plate of the crossheading and the bottom plate of the working face, so that the head and the tail of a scraper conveyor are suspended in the crossheading, and a cushion frame is required to be respectively arranged below the head and the tail of the conveyor in order to ensure the safety and the reliability of the conveyor. The height of the step between the working face and the two crossroads is constantly changed due to the fluctuation of the trend of the crossroads, the appearance of the mine pressure, the change of the mining height of the working face and the like, so that the height of the cushion frame arranged below the head and the tail of the conveyor is required to be adjustable to adapt to the constantly changing step height.
The prior art uses more is multilayer pull formula cushion frame, through setting up multilayer cushion frame, adjusts the height of cushion frame through the number of piles that increases or reduces the cushion frame when the working face with in the same direction as the step height grow between the groove or diminish, realizes the effective support of conveyer aircraft nose, tail. Because the cushion frame is heavy and the underground operation space is narrow, the method has the problems of discontinuous height adjustment, low replacement efficiency, high labor intensity, potential safety hazard and the like.
In addition, patent 201810118673.5 (conveyor two-end pad rack and mobile device) discloses a conveyor two-end pad rack and mobile device thereof, which realizes the up-and-down movement of a lifting platform by additionally arranging a lifting oil cylinder to solve the problems of discontinuous height adjustment, low replacement efficiency, high labor intensity, potential safety hazard and the like of the pad rack.
Still like patent 201720885691.7 (scrape trigger flexible bed hedgehopping for bottom cutting) disclose a scrape trigger flexible bed hedgehopping for bottom cutting, outer jar support cover on the inner cylinder base, there is the pneumatic cylinder respectively outer jar support both sides, and the pneumatic cylinder is fixed with outer jar support through two at least clamp plates, adjusts for the roof locating pin B fix on outer jar support top and can angle regulation. Under the condition that the height of a coal face changes, the whole scraper conveyor can stably run on the face through adjustment of the telescopic cushion frame, so that the bending deformation of the scraper conveyor is reduced to the maximum extent, the coal mining difficulty is effectively reduced, and the service life of the scraper conveyor is prolonged. However, the lifting oil cylinder is arranged below the equipment, so that the lowest height is high, the adjustable height range is small, the length of the working surface is changed, or the cushion frame is easy to interfere with the step between the working surface and the smooth groove when the conveyer moves up and down on the working surface.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an adjustable cushion frame which is large in height adjusting range, strong in adaptability and high in reliability and is used for the head and the tail of a fully mechanized mining face conveyor of a coal mine thin seam.
In order to achieve the purpose, the invention adopts the technical scheme that: an adjustable cushion frame for the head and the tail of a fully mechanized mining face conveyor of a coal mine thin seam comprises a bottom plate, at least two telescopic jacks, two guide plates, a supporting platform and a hydraulic system;
the two guide plates are vertically fixed on the bottom plate and arranged in parallel, and vertical guide holes are respectively formed in the two guide plates;
the supporting platform is a groove-shaped platform, two vertical edges of the groove-shaped platform are parallel and are tightly attached to the inner side surface of the guide plate, the bottom surface of the groove-shaped platform is a supporting surface, guide blocks are arranged on the outer sides of the two vertical edges of the groove-shaped platform corresponding to the guide holes, and connecting lugs are arranged on the guide blocks;
the at least two telescopic jacks are respectively arranged on the outer sides of the two guide plates, the bottom ends of the telescopic jacks are fixed on the bottom plate, and the top ends of the telescopic jacks are hinged with the connecting lugs;
the hydraulic system is connected with the telescopic jack and provides power for the telescopic jack;
the height difference between the connecting lug and the supporting surface is set according to the height of the guide plate and the telescopic stroke of the telescopic jack, so that when the telescopic jack is completely retracted, the supporting surface reaches or approaches the bottom plate.
Basically, a bidirectional lock and a safety valve are respectively arranged on an upper cavity hydraulic pipeline and a lower cavity hydraulic pipeline of the hydraulic system connected with the telescopic hydraulic cylinder.
And a liquid inlet of the hydraulic system is provided with a stop valve and an automatic backwashing filter.
Basically, the liquid inlet of the hydraulic system is provided with an electric control speed regulating valve.
Basically, telescopic jack disposes four and two liang in groups and sets up in the outside of two deflectors, the corresponding guiding hole that sets up two parallels on the deflector, two vertical edge outsides of flute profile platform are corresponding sets up two guide blocks, all disposes a engaging lug on every guide block, and the top of every telescopic jack articulates a engaging lug.
Basically, the width of the bottom plate is more than 1.5 times of the distance between the two guide blocks.
Basically, the groove-shaped platform is of an integrally formed structure.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly, the telescopic oil cylinders are arranged at the front part and the rear part of the head and the tail of the conveyor, and the groove-shaped supporting platform supports the head and the tail, so that the height of the part of the cushion frame supporting the head and the tail is greatly reduced, the lowest height is only the thickness of two layers of plates, namely a bottom plate and a supporting surface, the actual adaptive step difference range can reach 80-2000mm, the height adjusting range is greatly improved, and the invention has strong adaptability.
Further, the direct overlap joint of conveyer aircraft nose tail is on bed hedgehopping supporting platform, be non-contact with supporting platform and be connected, can follow the working face between the two and cut the eye direction and slide, in the advancing in-process when the working face length changes or the conveyer appears scurrying the gliding in the working face, the conveyer aircraft nose tail can slide on bed hedgehopping supporting platform, has effectively avoided bed hedgehopping and working face and the problem of step production interference between the groove, has guaranteed the stability of system.
Furthermore, the cushion frame is provided with a stop valve, an automatic back-washing filter and an electric control speed regulating valve at a liquid inlet of a hydraulic system, so that the cleanliness and the accurate control of the adjusting height of the system are effectively ensured, and a bidirectional lock and a safety valve are arranged on hydraulic pipelines of an upper cavity and a lower cavity of the telescopic jack, so that the upper cavity and the lower cavity of the telescopic jack are automatically locked when the height of the supporting platform is adjusted to a proper position, and the stable support of the head and the tail of the conveyor is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an adjustable pad frame used for the head and the tail of a fully mechanized mining face conveyor of a coal mine in an application state.
Fig. 2 is a partial detail view of the adjustable pad frame for the head and the tail of the fully mechanized mining face conveyor of the coal mine thin seam.
Fig. 3 is a schematic structural diagram of the contraction state of the adjustable pad frame used for the head and the tail of the fully mechanized mining face conveyor of the coal mine thin seam.
Fig. 4 is a schematic structural diagram of the extension state of the adjustable pad frame used for the head and the tail of the fully mechanized mining face conveyor of the coal mine thin seam.
Fig. 5 is a side view of an adjustable bolster for the head and tail of a fully mechanized coal mining face conveyor of a coal mine.
Fig. 6 is a schematic diagram of a hydraulic system of an adjustable pad frame used for the head and the tail of a fully mechanized mining face conveyor of a coal mine thin seam.
In the figure: 1. a base plate; 2. a telescopic jack; 3. a guide plate; 4. a support platform; 4-1, vertical edge; 4-2, a support surface; 4-3, a guide block; 4-4, connecting the lug; 5. a guide hole; 6. a cushion frame; 7. a conveyor head; 8. a roadway; 9. working face and tunnel step.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments.
As shown in fig. 1-5, an adjustable pad frame for the head and the tail of a fully mechanized mining face conveyor of a coal mine thin seam comprises a bottom plate 1, four telescopic jacks 2, two guide plates 3, a supporting platform 4 and a hydraulic system;
two guide plates 3 are vertically fixed on the bottom plate 1, the two guide plates 3 are arranged in parallel, and vertical guide holes 5 are respectively formed in the two guide plates 3.
The supporting platform 4 is a groove-shaped platform, two vertical edges 4-1 of the groove-shaped platform are parallel and closely attached to the inner side face of the guide plate 3, the bottom face of the groove-shaped platform is a supporting face 4-2, guide blocks 4-3 are arranged on the outer sides of the two vertical edges 4-1 of the groove-shaped platform corresponding to the guide holes 5, connecting lugs 4-4 are arranged on the guide blocks 4-3, in order to improve the structural strength of the supporting platform, the groove-shaped platform is of an integrally formed structure, and the height difference between the connecting lugs 4-4 and the supporting face 4-2 is set according to the height of the guide plate 3 and the telescopic stroke of the telescopic jack 2, so that when the telescopic jack 2 is completely retracted, the supporting face 4-2 reaches or approaches to the bottom plate 1.
The four telescopic jacks are arranged on the outer sides of the two guide plates 3 in a pairwise mode, the bottom ends of the telescopic jacks 2 are fixed on the base plate 1, and the top ends of the telescopic jacks 2 are hinged to the connecting lugs 4-4.
In order to improve the stability of the whole cushion frame, the width of the bottom plate 1 is more than 1.5 times of the distance between the two guide blocks 3.
As shown in fig. 6, the hydraulic system is connected with the telescopic jack 2 and provides power for the telescopic jack 2, the hydraulic system is respectively provided with a two-way lock and a safety valve on an upper cavity hydraulic pipeline and a lower cavity hydraulic pipeline which are connected with the telescopic hydraulic cylinder, a liquid inlet of the hydraulic system is provided with a stop valve and an automatic backwashing filter, and a liquid inlet of the hydraulic system is provided with an electric control speed regulating valve.
The working principle is as follows:
as shown in fig. 1, the conveyor head 7 is erected on the adjustable cushion frame supporting platform 4, the lifting height of the telescopic jack 2 is controlled through a hydraulic system, the lifting height of the telescopic jack is matched with the height of the roadway step 9, the lifting height is not limited by the height of the telescopic jack due to the fact that the telescopic jack 2 is arranged beside the telescopic jack 2, the lifting height can be greatly reduced, and then the height adjusting range of the cushion frame is greatly improved.
Further, because the cushion frame is in the use, the conveyer aircraft nose tail can take place the working face length amount change at the in-process that advances, perhaps the conveyer appears scurrying the gliding phenomenon on the working face, at this moment, because the overlap joint of the activity of conveyer aircraft nose tail is on cushion frame supporting platform, make the conveyer aircraft nose tail slide on cushion frame supporting platform, effectively avoided cushion frame and working face and step between the groove to produce the problem of interfering, guaranteed the steady operation of system.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides an adjustable bed frame that is used for colliery thin seam to combine and adopts working face conveyer head and tail which characterized in that: the device comprises a bottom plate, at least two telescopic jacks, two guide plates, a supporting platform and a hydraulic system;
the two guide plates are vertically fixed on the bottom plate and arranged in parallel, and vertical guide holes are respectively formed in the two guide plates;
the supporting platform is a groove-shaped platform, two vertical edges of the groove-shaped platform are parallel and are tightly attached to the inner side surface of the guide plate, the bottom surface of the groove-shaped platform is a supporting surface, guide blocks are arranged on the outer sides of the two vertical edges of the groove-shaped platform corresponding to the guide holes, and connecting lugs are arranged on the guide blocks;
the at least two telescopic jacks are respectively arranged on the outer sides of the two guide plates, the bottom ends of the telescopic jacks are fixed on the bottom plate, and the top ends of the telescopic jacks are hinged with the connecting lugs;
the hydraulic system is connected with the telescopic jack and provides power for the telescopic jack;
the height difference between the connecting lug and the supporting surface is set according to the height of the guide plate and the telescopic stroke of the telescopic jack, so that when the telescopic jack is completely retracted, the supporting surface reaches or approaches the bottom plate.
2. The adjustable bolster for the head and tail of a fully mechanized coal mining face conveyor of a coal mine thin seam according to claim 1, characterized in that: the hydraulic system is connected with an upper cavity hydraulic pipeline and a lower cavity hydraulic pipeline of the telescopic hydraulic cylinder and is provided with a bidirectional lock and a safety valve respectively.
3. The adjustable bolster for the head and tail of the fully mechanized coal mining face conveyor of the coal mine thin seam according to claim 2, characterized in that: the liquid inlet of the hydraulic system is provided with a stop valve and an automatic backwashing filter.
4. The adjustable bolster for the head and tail of the fully mechanized coal mining face conveyor of the coal mine thin seam according to claim 3, characterized in that: and an electric control speed regulating valve is arranged at a liquid inlet of the hydraulic system.
5. The adjustable pad frame for the head and the tail of the fully mechanized mining face conveyor of the coal mine thin seam according to any one of claims 1 to 4, wherein: the telescopic jack is provided with four guide holes, the four guide holes are correspondingly arranged on the two guide plates, the two guide blocks are correspondingly arranged on the outer sides of two vertical edges of the groove-shaped platform, each guide block is provided with a connecting lug, and the top end of each telescopic jack is hinged with one connecting lug.
6. The adjustable bolster for the head and tail of the fully mechanized coal mining face conveyor of the coal mine thin seam according to claim 5, characterized in that: the width of the bottom plate is more than 1.5 times of the distance between the two guide blocks.
7. The adjustable bolster frame for the head and the tail of the fully mechanized coal mining face conveyor of the coal mine thin seam according to claim 6, characterized in that: the groove-shaped platform is of an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734630.1A CN113460609B (en) | 2021-06-30 | 2021-06-30 | Adjustable pad frame for head and tail of fully-mechanized coal mining face conveyor of coal mine thin coal seam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734630.1A CN113460609B (en) | 2021-06-30 | 2021-06-30 | Adjustable pad frame for head and tail of fully-mechanized coal mining face conveyor of coal mine thin coal seam |
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| Publication Number | Publication Date |
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| CN113460609A true CN113460609A (en) | 2021-10-01 |
| CN113460609B CN113460609B (en) | 2023-08-22 |
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| CN202110734630.1A Active CN113460609B (en) | 2021-06-30 | 2021-06-30 | Adjustable pad frame for head and tail of fully-mechanized coal mining face conveyor of coal mine thin coal seam |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB823128A (en) * | 1955-02-23 | 1959-11-04 | Dowty Mining Equipment Ltd | Improvements in and relating to mine roof support systems |
| US4449755A (en) * | 1982-09-30 | 1984-05-22 | Nelson Rodney L | Thin seam mining machine |
| CN201502392U (en) * | 2009-09-28 | 2010-06-09 | 刘红 | Automatic loading device of hydraulic bracket |
| CN202690128U (en) * | 2012-08-13 | 2013-01-23 | 兖州煤业股份有限公司 | Thin seam fully mechanized coal mining face scraper conveyer handpiece cushion frame auto-move device |
| CN202743937U (en) * | 2012-08-24 | 2013-02-20 | 山西煤矿机械制造有限责任公司 | Hydraulic height adjusting device of scraper conveyer head and tail stock |
| CN103775125A (en) * | 2012-10-23 | 2014-05-07 | 山东能源机械集团通力装备制造有限公司 | Migrating mechanical arm for moving device |
| CN203978489U (en) * | 2014-08-04 | 2014-12-03 | 铁法煤业（集团）有限责任公司小青煤矿 | Mining surface of low coal seam transporter articulated mounting |
| CN110182567A (en) * | 2019-05-28 | 2019-08-30 | 山西煤矿机械制造股份有限公司 | Head height-regulating device |
-
2021
- 2021-06-30 CN CN202110734630.1A patent/CN113460609B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB823128A (en) * | 1955-02-23 | 1959-11-04 | Dowty Mining Equipment Ltd | Improvements in and relating to mine roof support systems |
| US4449755A (en) * | 1982-09-30 | 1984-05-22 | Nelson Rodney L | Thin seam mining machine |
| CN201502392U (en) * | 2009-09-28 | 2010-06-09 | 刘红 | Automatic loading device of hydraulic bracket |
| CN202690128U (en) * | 2012-08-13 | 2013-01-23 | 兖州煤业股份有限公司 | Thin seam fully mechanized coal mining face scraper conveyer handpiece cushion frame auto-move device |
| CN202743937U (en) * | 2012-08-24 | 2013-02-20 | 山西煤矿机械制造有限责任公司 | Hydraulic height adjusting device of scraper conveyer head and tail stock |
| CN103775125A (en) * | 2012-10-23 | 2014-05-07 | 山东能源机械集团通力装备制造有限公司 | Migrating mechanical arm for moving device |
| CN203978489U (en) * | 2014-08-04 | 2014-12-03 | 铁法煤业（集团）有限责任公司小青煤矿 | Mining surface of low coal seam transporter articulated mounting |
| CN110182567A (en) * | 2019-05-28 | 2019-08-30 | 山西煤矿机械制造股份有限公司 | Head height-regulating device |
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| CN113460609B (en) | 2023-08-22 |
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Effective date of registration: 20220729 Address after: 450000 No. 167, 9th Street, Zhengzhou area (Economic Development Zone), Henan pilot Free Trade Zone, Zhengzhou City, Henan Province Applicant after: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Applicant after: ZHENGZHOU COAL MINING MACHINERY LONGWALL EQUIPMENT CO.,LTD. Address before: No.167, 9th Street, Zhengzhou Economic and Technological Development Zone, Henan Province, 450000 Applicant before: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Applicant before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Applicant before: ZHENGZHOU COAL MINING MACHINERY LONGWALL EQUIPMENT CO.,LTD. |
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