CN216894465U - Support base of hydraulic support for caving coal working face - Google Patents
Support base of hydraulic support for caving coal working face Download PDFInfo
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- CN216894465U CN216894465U CN202123415403.7U CN202123415403U CN216894465U CN 216894465 U CN216894465 U CN 216894465U CN 202123415403 U CN202123415403 U CN 202123415403U CN 216894465 U CN216894465 U CN 216894465U
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- 239000003245 coal Substances 0.000 title claims abstract description 23
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000005065 mining Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a support base of a hydraulic support for a top coal caving working face, wherein symmetrical pressure plate grooves are formed in the lower side of a base body, the pressure plate grooves are opened downwards, a pressure plate is arranged in each pressure plate groove, a hydraulic device is arranged at the upper end of each pressure plate and consists of a cylinder barrel and a piston rod, the piston rod penetrates through the groove wall of each pressure plate groove to be connected and fixed with the pressure plate, the cylinder barrel is fixed in the base body through a cylinder barrel frame seat, and conical teeth are uniformly distributed on the lower side of each pressure plate. The beneficial effects are as follows: the hydraulic device and the pressing plate are arranged in the hydraulic base, so that the stability of the hydraulic support is improved and the possibility of stress displacement of the hydraulic support is reduced during earthquake and earthquake; the arrangement of the bevel teeth can improve the friction force between the base and the ground, so that the base is more firmly arranged on the ground; the hydraulic device is fixed by the cylinder barrel frame seat and the fixed clamping seat, and the temperature of the hydraulic device in the base is guaranteed.
Description
Technical Field
The utility model relates to the field of coal mine excavation, in particular to a support base of a hydraulic support of a top coal caving working face.
Background
The wide distribution and rich reserves of the thick coal seam are the basic occurrence characteristics of Chinese coal resources. Fully mechanized caving mining of thick and ultra-thick coal seams is a direction and an important technical approach for realizing safe and efficient mining of coal. The top plate is crushed under the action of ground pressure in the process of top coal caving mining, and the crushed coal body enters a working face scraper conveyor through a coal caving port under the action of self weight. Compared with the traditional layered mining, the method has the advantages of low roadway excavation rate, good adaptability to geological conditions, less consumed materials, high yield, high efficiency, mild support pressure of the working face and the like.
However, after the base of the existing hydraulic support is conveyed to a working place, the base of the existing hydraulic support is installed on a flat ground, and the bases of most hydraulic supports do not have a good ground grabbing mechanism, so that the situation that the support of the hydraulic support is unstable when the hydraulic support meets ground movement or an earthquake can be caused, and a greater disaster can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a support base of a hydraulic support of a top coal caving working face, aiming at solving the problems in the prior art.
The technical scheme of the utility model is realized as follows:
a support base of a hydraulic support of a caving coal working face comprises: the base body, the downside of base body is equipped with the clamp plate groove of symmetry, the clamp plate groove is the downward opening be equipped with the clamp plate in the clamp plate groove, hydraulic means is installed to the clamp plate upper end, hydraulic means comprises cylinder and piston rod, the piston rod passes the cell wall in clamp plate groove with the clamp plate is connected fixedly, the cylinder passes through cylinder frame foundation to be fixed inside the base body.
Preferably, the lower side of the pressure plate is provided with evenly distributed bevel teeth.
Preferably, a connecting plate is further arranged between the piston rod and the pressing plate, and the connecting plate is located in the pressing plate groove.
Preferably, a fixed clamping seat is arranged in the middle of the hydraulic device, and the piston rod penetrates through the fixed clamping seat.
Preferably, the number of the pressing plate grooves is 4, and the 4 pressing plate grooves are symmetrically arranged at four corners of the base body.
Preferably, the number of clamp plate groove is 2, the clamp plate groove is rectangular groove, and with base body's long limit is parallel.
Preferably, the number of the pressing plate grooves is 2, the pressing plate grooves are rectangular grooves, and the pressing plate grooves are distributed in an inclined mode, wherein the pressing plate grooves are symmetrical to the central axis of the support base.
The beneficial effects are that:
1. the hydraulic device and the pressing plate are arranged in the hydraulic base, so that the stability of the hydraulic support is improved and the possibility of stress displacement of the hydraulic support is reduced during earthquake and earthquake;
2. the arrangement of the bevel teeth can improve the friction force between the base and the ground, so that the base is more firmly arranged on the ground;
3. the hydraulic device is fixed by the cylinder barrel frame seat and the fixed clamping seat, and the temperature of the hydraulic device in the base is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a platen slot profile of the first embodiment;
FIG. 3 is a platen slot profile of the second embodiment;
FIG. 4 is a platen slot profile of a third embodiment;
in the figure, 1-a base body, 2-a pressing plate groove, 3-a cylinder barrel, 4-a piston rod, 5-a cylinder barrel frame seat, 6-a fixed clamping seat, 7-a connecting plate, 8-a pressing plate and 9-a bevel gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1-4, a support base of a hydraulic support for a caving coal working face comprises: the pressing device comprises a base body 1, wherein symmetrical pressing plate grooves 2 are formed in the lower side of the base body 1, the pressing plate grooves 2 are downward opened, a pressing plate 8 is arranged in the pressing plate grooves 2, a hydraulic device is installed at the upper end of the pressing plate 8, the hydraulic device can drive the pressing plate 8 to move up and down in the pressing plate grooves 2, and when the pressing plate 8 presses downwards, the pressing plate 8 is in contact with the ground; when the hydraulic support needs to be transferred, the pressing plate 8 retracts to be separated from the ground; the hydraulic device consists of a cylinder barrel 3 and a piston rod 4, the piston rod 4 penetrates through the groove wall of the pressure plate groove 2 to be connected and fixed with the pressure plate 8, the cylinder barrel 3 is fixed in the base body 1 through a cylinder barrel frame seat 5, the cylinder barrel 3 can be firmly fixed in the base body 1 through the cylinder barrel frame seat 5, and the hydraulic device cannot easily incline or misplace when stressed in a non-vertical direction; be equipped with fixed cassette 6 in hydraulic means's middle part, piston rod 4 passes fixed cassette 6, and piston rod 4 can slide from top to bottom on fixed cassette 6, and fixed cassette 6 can guarantee that piston rod 4 only moves in vertical direction, and when hydraulic support was strikeed or received the power of non-vertical direction, fixed cassette 6 guaranteed hydraulic means's stability with the cooperation of cylinder frame seat 5.
8 downside of clamp plate is equipped with evenly distributed's awl tooth 9, and when 8 pushes down of clamp plate, awl tooth 9 pricks into the subaerial in coal mine tunnel, and the land fertility of grabbing of increase base body 1 prevents that hydraulic support from producing the skew, and when 9 pricked into ground, 8 lower surfaces of clamp plate can not surpass the under shed of clamp plate groove 2, and both 8 pushes down of clamp plate can not make base body 1 empty.
Still be equipped with even board 7 between piston rod 4 and clamp plate 8, even board 7 is located clamp plate groove 2, and even board 7 is for increasing the area of contact between piston rod 4 and the clamp plate 8, and the connecting rod can select for use the steel sheet to make the atress of clamp plate 8 more even.
The first embodiment is as follows:
in this embodiment, as shown in fig. 2, the number of the pressing plate grooves 2 is set to 4, the 4 pressing plate grooves 2 are symmetrically arranged at four corners of the base body 1, a pressing plate 8 and a corresponding hydraulic device are arranged in each pressing plate groove 2, after the hydraulic support is conveyed to a corresponding place, the hydraulic device is started, and the pressing plate 8 presses the bevel gear 9 down to prick into the ground to keep the stability of the hydraulic support.
Example two:
in this embodiment, as shown in fig. 3, the number of the pressing plate grooves 2 is set to 2, the pressing plate grooves 2 are rectangular grooves, each pressing plate groove 2 is internally provided with one pressing plate 8 and one or more corresponding hydraulic devices, the plurality of hydraulic devices are arranged to ensure that the pressing plates 8 are uniformly stressed when pressed down, and the pressing plates 8 are parallel to the long sides of the base body 1 and can improve the stability of the base body 1 due to the arrangement mode of parallel symmetry.
Example three:
in this embodiment, as shown in fig. 4, the pressure plates 8 arranged in parallel in the second embodiment are changed to be arranged obliquely, and the oblique arrangement can further improve the grip of the pressure plates 8 when the pressure plates are stressed in the front-back and left-right directions.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A support base of a hydraulic support for a caving coal face, comprising: base body, its characterized in that: the base is characterized in that symmetrical pressure plate grooves are formed in the lower side of the base body, the pressure plate grooves are open downwards, pressure plates are arranged in the pressure plate grooves, a hydraulic device is installed at the upper end of each pressure plate and comprises a cylinder barrel and a piston rod, the piston rod penetrates through the wall of each pressure plate groove to be fixedly connected with the pressure plates, and the cylinder barrel is fixed inside the base body through a cylinder barrel frame seat.
2. The support base of the hydraulic support for the caving coal face of claim 1, which is characterized in that: the lower side of the pressing plate is provided with conical teeth which are uniformly distributed.
3. The support base of the hydraulic support for the caving coal face of claim 1, which is characterized in that: and a connecting plate is also arranged between the piston rod and the pressing plate and is positioned in the pressing plate groove.
4. The support base of the hydraulic support for the caving coal face of claim 1, which is characterized in that:
and a fixed clamping seat is arranged in the middle of the hydraulic device, and the piston rod penetrates through the fixed clamping seat.
5. The support base of the hydraulic support for the caving coal face of claim 1, which is characterized in that: the quantity of clamp plate groove is 4, 4 the clamp plate groove is the symmetry and establishes the four corners department of base body.
6. The support base of the hydraulic support for the caving coal working face as claimed in claim 1, characterized in that: the quantity of clamp plate groove is 2, the clamp plate groove is rectangular groove, and with the long limit of base body is parallel.
7. The support base of the hydraulic support for the caving coal face of claim 1, which is characterized in that: the quantity of clamp plate groove is 2, the clamp plate groove is rectangular groove, the clamp plate groove be for with the slope distribution of axis symmetry of support base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123415403.7U CN216894465U (en) | 2021-12-31 | 2021-12-31 | Support base of hydraulic support for caving coal working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123415403.7U CN216894465U (en) | 2021-12-31 | 2021-12-31 | Support base of hydraulic support for caving coal working face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216894465U true CN216894465U (en) | 2022-07-05 |
Family
ID=82210029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123415403.7U Expired - Fee Related CN216894465U (en) | 2021-12-31 | 2021-12-31 | Support base of hydraulic support for caving coal working face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216894465U (en) |
-
2021
- 2021-12-31 CN CN202123415403.7U patent/CN216894465U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220705 |