CN113187998A - Experimental simulation demonstration device for coal seam fracturing crack expansion - Google Patents
Experimental simulation demonstration device for coal seam fracturing crack expansion Download PDFInfo
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- CN113187998A CN113187998A CN202110462980.7A CN202110462980A CN113187998A CN 113187998 A CN113187998 A CN 113187998A CN 202110462980 A CN202110462980 A CN 202110462980A CN 113187998 A CN113187998 A CN 113187998A
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- 239000011425 bamboo Substances 0.000 claims description 15
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application discloses an experimental simulation demonstration device for coal seam fracturing crack extension, which comprises a base, a supporting cylinder, an adjusting mechanism, a rotating mechanism and a clamping mechanism, wherein the supporting cylinder is arranged on the base; wherein the surface of the top side of the base is fixedly connected with the surface of the bottom end of the supporting cylinder; the adjusting mechanism comprises a servo motor, a threaded rod, a movable barrel and a fixing bolt, the servo motor is fixedly connected to the bottom side of the base, the output end of the servo motor is connected with the bottom end of the threaded rod, the movable barrel is sleeved on the surface of the threaded rod in a threaded mode, the fixing bolt is connected to the side surface of the top end of the supporting barrel in a threaded mode, the movable barrel is connected to the inner cavity of the supporting barrel in a sliding mode, the top end of the movable barrel is fixedly connected with a placing seat, the top side of the placing seat is fixedly connected with the bottom side of the rotating mechanism, and the top end of the rotating mechanism is connected with a clamping mechanism. The experimental simulation demonstration device for coal seam fracturing crack propagation is novel in design and simple in structure.
Description
Technical Field
The application relates to the field of coal seam fracturing crack extension experiments, in particular to an experimental simulation demonstration device for coal seam fracturing crack extension.
Background
The coal seam fracturing reformation can effectively communicate a well hole with natural fractures of the coal seam, thereby more widely distributing pressure drop near the well hole, increasing productivity and increasing gas desorption rate when water drainage and gas production are carried out, and therefore, the fracturing reformation is generally applied as an important strengthening measure in the exploration and development of the coal seam gas.
The operation is comparatively complicated in coal seam fracturing crack extension, needs the worker to carry out to watch the experiment simulation many times and is familiar with the understanding, and some present coal seam fracturing crack extension are adjusted with the experiment simulation presentation device angle of not being convenient for in use, influence the worker and watch, reduce the practicality, influence the operation. Therefore, the experimental simulation demonstration device for coal seam fracturing crack propagation is provided aiming at the problems.
Disclosure of Invention
The utility model provides a coal seam fracturing is experimental simulation presentation device for crack extension is provided in this embodiment for solve operate comparatively complicacy in coal seam fracturing crack extension, need the worker to carry out to watch the experiment simulation many times and be familiar with and understand, and some present coal seam fracturing is experimental simulation presentation device for crack extension in use angle of being not convenient for adjusts, influences the worker and watches, reduces the practicality, influences the problem of operation.
According to one aspect of the application, an experimental simulation demonstration device for coal seam fracturing fracture expansion is provided, and comprises a base, a supporting cylinder, an adjusting mechanism, a rotating mechanism and a clamping mechanism; wherein the surface of the top side of the base is fixedly connected with the surface of the bottom end of the supporting cylinder;
the adjusting mechanism comprises a servo motor, a threaded rod, a movable barrel and a fixing bolt, the servo motor is fixedly connected to the bottom side of the base, the output end of the servo motor is connected with the bottom end of the threaded rod, the movable barrel is sleeved on the surface of the threaded rod in a threaded mode, the fixing bolt is connected to the side surface of the top end of the supporting barrel in a threaded mode, the movable barrel is connected to the inner cavity of the supporting barrel in a sliding mode, the top end of the movable barrel is fixedly connected with a placing seat, the top side of the placing seat is fixedly connected with the bottom side of the rotating mechanism, and the top end of the rotating mechanism is connected with a clamping mechanism.
Further, the base cross-section is the I shape structure, base top side surface fixed connection has two parallel support sections. Furthermore, the tail end of the fixing bolt penetrates through the side surface of the supporting cylinder, and the tail end of the fixing bolt is tightly attached to the side surface of the moving cylinder.
Further, rotary mechanism includes fixed plate, dwang, limiting plate, gear, spacing rack, removes frame, carriage release lever and spring, fixed plate bottom side surface with place seat top side fixed surface and connect, fixed plate surface slides and runs through there the dwang, the relative both ends fixedly connected with limiting plate of dwang, the fixed cover of dwang left end side surface has connect the gear, gear bottom side meshing connects spacing rack, spacing rack fixed connection is at removing the frame, remove frame bottom and carriage release lever top fixed connection, carriage release lever sliding connection is at placing the seat surface, remove frame bottom and spring top fixed connection.
Further, the cross section of the moving rod is of an inverted T-shaped structure, the surface of the top end of the moving rod is sleeved with a spring, and the bottom end of the spring is fixedly connected with the surface of the top side of the placing seat.
Further, the fixed plate on one side of the limiting plate rotates to be attached, and the two limiting plates are placed in parallel.
Further, fixture is including placing shell, vertical board, removal shell, movable plate, fastening bolt, splint, mount pad and display screen, placing shell fixed connection is at spacing board top surface, placing shell dorsal part top with vertical board bottom surface fixed connection, the relative both sides fixed surface of vertical board is connected with the removal shell, removal shell inner chamber sliding connection has the movable plate, the one end dorsal part surface threaded connection that vertical board was kept away from to the removal shell has fastening bolt, movable plate one side surface with splint side surface fixed connection, the block is connected with the mount pad in the standing groove of placing shell top side, mount pad obverse side fixed surface is connected with the display screen.
Further, the number of the clamping plates is two, and the two clamping plates are symmetrically distributed around the display screen.
Further, the tail end of the fastening bolt penetrates through the side surface of the movable shell, and the tail end of the fastening bolt is tightly attached to the surface of the movable plate. Further, the front side surface of the vertical plate is in sliding fit with the back side surface of the mounting seat.
Through the above-mentioned embodiment of this application, adopted rotary mechanism, solved the problem of display screen angle modulation, be convenient for adjust the angle of mount pad and display screen, the mount pad after being convenient for adjust is stable fixed, and the person of facilitating the use watches the display screen simultaneously, improves the convenience.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic overall perspective view of an embodiment of the present application;
FIG. 2 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 3 is an enlarged, partial schematic view of the entire section of FIG. 2A according to an embodiment of the present application;
FIG. 4 is a schematic view of a vertical plate top connection structure according to an embodiment of the present application;
FIG. 5 is a schematic view of a left side surface of a gear according to an embodiment of the present application;
FIG. 6 is a top view of a support cylinder according to an embodiment of the present disclosure.
In the figure: 1. the base, 2, a supporting cylinder, 3, servo motor, 4, threaded rod, 5, remove a section of thick bamboo, 6, fixing bolt, 7, place the seat, 8, fixed plate, 9, limiting plate, 10, dwang, 11, place the shell, 12, gear, 13, spacing rack, 14, removal frame, 15, carriage release lever, 16, spring, 17, vertical board, 18, mount pad, 19, remove the shell, 20, the movable plate, 21, fastening bolt, 22, splint, 23, display screen.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The experiment simulation demonstration apparatus in the present embodiment may be applied to various liquid crystal displays, for example, the following liquid crystal display assembly is provided in the present embodiment, and the experiment simulation demonstration apparatus in the present embodiment may be used to place the following liquid crystal display assembly.
The liquid crystal display assembly for demonstration comprises a liquid crystal display and a cover plate.
The liquid crystal display screen is provided with a display surface.
The utility model discloses a liquid crystal display's demonstration face, including apron, transparent region and non-transparent region, the apron on have transparent region and non-transparent region, transparent region and liquid crystal display's display surface coincidence, like this, can see through the transparent region on the apron and see liquid crystal display's display surface, can normally demonstrate for the customer, in addition, the apron can effectively protect liquid crystal display's display surface, avoids liquid crystal display's display surface to break or scrape the flower.
The non-transparent area of the cover plate is plated with a plurality of characters, so that corresponding characters can be arranged as required.
The cover plate is bonded with the liquid crystal display screen, so that the cover plate is connected with the liquid crystal display screen conveniently.
The cover plate is made of toughened glass or a PC material or an acrylic plate, the cover plate made of the toughened glass has high strength and is not easy to damage, the cover plate made of the PC material has low cost, the cover plate made of the acrylic plate has high impact resistance and good light transmission.
The both sides of apron all be provided with a through-hole, can fix the apron at the show stand with the cooperation of fastener and through-hole like this, just so can be comparatively convenient fix this demonstration with liquid crystal display subassembly on the show stand.
Of course, the present embodiment can also be used for placing display screens with other structures. Here, description is not repeated, and the experimental simulation demonstration apparatus according to the embodiment of the present application is described below.
Referring to fig. 1-6, an experimental simulation demonstration device for coal seam fracture propagation includes a base 1, a support cylinder 2, an adjusting mechanism, a rotating mechanism and a clamping mechanism; wherein the top surface of the base 1 is fixedly connected with the bottom surface of the support cylinder 2;
adjustment mechanism includes servo motor 3, threaded rod 4, a removal section of thick bamboo 5 and fixing bolt 6, 3 fixed connection of servo motor is in 1 bottom side of base, 3 outputs of servo motor are connected with 4 bottoms of threaded rod, 4 surperficial screw threads of threaded rod have cup jointed a removal section of thick bamboo 5, 2 top side surface threaded connection of a support section of thick bamboo has fixing bolt 6, 5 sliding connection of a removal section of thick bamboo are at 2 inner chambers of a support section of thick bamboo, 5 top fixedly connected with of a removal section of thick bamboo place seat 7, place seat 7 top side with rotary mechanism bottom side fixed connection, the rotary mechanism top is connected with fixture, is convenient for highly adjust display screen 23, is convenient for be suitable for different workers and watch the use, improves the practicality of display screen 23.
The cross section of the base 1 is of an I-shaped structure, and the surface of the top side of the base 1 is fixedly connected with two parallel supporting cylinders 2, so that the supporting cylinders 2 can be conveniently placed; the tail end of the fixing bolt 6 penetrates through the side surface of the support cylinder 2, and the tail end of the fixing bolt 6 is tightly attached to the side surface of the moving cylinder 5, so that the moving cylinder 5 is convenient to fix; the rotating mechanism comprises a fixed plate 8, a rotating rod 10, a limiting plate 9, a gear 12, a limiting rack 13, a moving frame 14, a moving rod 15 and a spring 16, wherein the bottom side surface of the fixed plate 8 is fixedly connected with the top side surface of the placing seat 7, the rotating rod 10 penetrates through the surface of the fixed plate 8 in a sliding manner, the limiting plates 9 are fixedly connected with the two opposite ends of the rotating rod 10, the gear 12 is fixedly sleeved on the side surface of the left end of the rotating rod 10, the bottom side of the gear 12 is meshed and connected with the limiting rack 13, the limiting rack 13 is fixedly connected to the moving frame 14, the bottom end of the moving frame 14 is fixedly connected with the top end of the moving rod 15, the moving rod 15 is slidably connected to the surface of the placing seat 7, the bottom end of the moving frame 14 is fixedly connected with the top end of the spring 16, so that the angles of the installing seat 18 and the display screen 23 can be adjusted, and the installing seat 18 after being adjusted can be stably fixed, meanwhile, the user can watch the display screen 23 conveniently, and convenience is improved; the cross section of the moving rod 15 is of an inverted T-shaped structure, the surface of the top end of the moving rod 15 is sleeved with a spring 16, and the bottom end of the spring 16 is fixedly connected with the surface of the top side of the placing seat 7, so that the moving rod 15 is placed reasonably; the fixing plates 8 on one sides of the limiting plates 9 are rotationally attached, and the two limiting plates 9 are arranged in parallel, so that the use is convenient; the clamping mechanism comprises a placing shell 11, a vertical plate 17, a moving shell 19, a moving plate 20, fastening bolts 21, clamping plates 22, a mounting seat 18 and a display screen 23, the placing shell 11 is fixedly connected to the top side surface of the limiting plate 9, the back side top of the placing shell 11 is fixedly connected to the bottom side surface of the vertical plate 17, the moving shell 19 is fixedly connected to the surfaces of the two opposite sides of the vertical plate 17, the moving plate 20 is slidably connected to the inner cavity of the moving shell 19, the fastening bolts 21 are in threaded connection with the back side surface of one end, far away from the vertical plate 17, of the moving shell 19, one side surface of the moving plate 20 is fixedly connected to the side surface of the clamping plates 22, the mounting seat 18 is connected to a placing groove in the top side of the placing shell 11 in a clamping manner, the display screen 23 is fixedly connected to the front side surface of the mounting seat 18, so that the mounting seat 18 is stably placed on the top side of the placing shell 11 to limit and fix the mounting seat 18, the placing stability of the mounting seat 18 is improved, and the use by a user is facilitated; the number of the clamping plates 22 is two, and the two clamping plates 22 are symmetrically distributed around the display screen 23, so that the mounting seat 18 is convenient to fix; the tail end of the fastening bolt 21 penetrates through the side surface of the movable shell 19, and the tail end of the fastening bolt 21 is tightly attached to the surface of the movable plate 20, so that the movable plate 20 is fixed conveniently; the front side surface of the vertical plate 17 is in sliding fit with the back side surface of the mounting seat 18, so that the mounting seat 18 can be conveniently placed.
When the invention is used, the bottom end of an installation seat 18 for fixing a display screen 23 is clamped at the top side of a placing shell 11, a movable plate 20 is adjusted, the movable plate 20 is attached to two opposite sides of the installation seat 18 through a clamping plate 22, after the adjustment clamping plate 22 is stably attached to the installation seat 18, the movable plate 20 and a movable shell 19 are stably fixed by rotating a fastening bolt 21, meanwhile, when the angle of the installation seat 18 is adjusted, a movable frame 14 is driven by a movable rod 15 to move, the movable frame 14 synchronously drives a fixedly connected limit rack 13 to be separated from a gear 12, the placing shell 11 is rotated, the rotating rod 10 at the bottom side is driven by the placing shell 11 to rotate the gear 12, after the angle of the placing shell 11 is adjusted, the movable rod 15 is loosened, under the action of a spring 16, the fixed connected limit rack 13 of the movable frame 14 is meshed with the bottom of the gear 12, the stability of the gear 12 is further ensured, and the adjusted placing shell 11 and the installation seat 18 are stably placed, make things convenient for the worker to use, start servo motor 3 simultaneously, servo motor 3 drives threaded rod 4 and drives the removal section of thick bamboo 5 of surface conditioning and remove, removes a section of thick bamboo 5 and promotes top side fixed connection place 7 and remove, and then is convenient for adjust the height of display screen 23, and the person of facilitating the use watches convenient to use.
The application has the advantages that:
1. this kind of coal seam fracturing crack extension is with experimental simulation presentation device novel in design, simple structure are convenient for place the stable shell 11 top side of placing of mount pad 18, are convenient for carry on spacing fixed with mount pad 18, improve placing of mount pad 18 stable, and the person of facilitating the use uses.
2. When using, under the effect of rotary mechanism through setting up, be convenient for adjust the angle of mount pad 18 and display screen 23, the mount pad 18 after being convenient for adjust is stable fixed, and the person of facilitating the use watches display screen 23 simultaneously, improves the convenience.
3. When using, under adjustment mechanism's effect through setting up, be convenient for highly adjust display screen 23, be convenient for be suitable for different workers and watch the use, improve display screen 23's practicality, have wide market value, be fit for using widely.
It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a coal seam fracturing crack extension is with experimental simulation presentation device which characterized in that: comprises a base (1), a supporting cylinder (2), an adjusting mechanism, a rotating mechanism and a clamping mechanism; wherein the top surface of the base (1) is fixedly connected with the bottom surface of the supporting cylinder (2); adjustment mechanism includes servo motor (3), threaded rod (4), removes a section of thick bamboo (5) and fixing bolt (6), servo motor (3) fixed connection is in base (1) bottom side, servo motor (3) output is connected with threaded rod (4) bottom, threaded rod (4) surface screw thread has cup jointed and has removed a section of thick bamboo (5), support a section of thick bamboo (2) top side surface threaded connection has fixing bolt (6), it connects at a support section of thick bamboo (2) inner chamber to remove a section of thick bamboo (5) sliding connection, it places seat (7) to remove a section of thick bamboo (5) top fixedly connected with, place seat (7) top side with rotary mechanism bottom side fixed connection, the rotary mechanism top is connected with fixture.
2. The experimental simulation demonstration device for coal seam fracturing fracture propagation according to claim 1, characterized in that: the cross section of the base (1) is of an I-shaped structure, and two parallel supporting cylinders (2) are fixedly connected to the surface of the top side of the base (1).
3. The experimental simulation demonstration device for coal seam fracturing fracture propagation according to claim 1, characterized in that: the tail end of the fixing bolt (6) penetrates through the side surface of the supporting cylinder (2), and the tail end of the fixing bolt (6) is tightly attached to the side surface of the moving cylinder (5).
4. The experimental simulation demonstration device for coal seam fracturing fracture propagation according to claim 1, characterized in that: the rotating mechanism comprises a fixed plate (8), a rotating rod (10), a limiting plate (9), a gear (12), a limiting rack (13), a moving frame (14), a moving rod (15) and a spring (16), wherein the bottom side surface of the fixed plate (8) is fixedly connected with the top side surface of the placing seat (7), the rotating rod (10) penetrates through the surface of the fixed plate (8) in a sliding manner, the limiting plates (9) are fixedly connected with the opposite two ends of the rotating rod (10), the gear (12) is fixedly sleeved on the side surface of the left end of the rotating rod (10), the limiting rack (13) is connected with the gear (12) in a meshing manner, the limiting rack (13) is fixedly connected with the moving frame (14), the bottom end of the moving frame (14) is fixedly connected with the top end of the moving rod (15), and the moving rod (15) is slidably connected with the surface of the placing seat (7), the bottom end of the movable frame (14) is fixedly connected with the top end of the spring (16).
5. The experimental simulation demonstration device for coal seam fracturing fracture propagation according to claim 4, characterized in that: the cross section of the moving rod (15) is of an inverted T-shaped structure, the surface of the top end of the moving rod (15) is sleeved with a spring (16), and the bottom end of the spring (16) is fixedly connected with the surface of the top side of the placing seat (7).
6. The experimental simulation demonstration device for coal seam fracturing fracture propagation according to claim 4, characterized in that: the fixing plate (8) on one side of the limiting plates (9) is rotationally attached, and the two limiting plates (9) are arranged in parallel.
7. The experimental simulation demonstration device for coal seam fracturing fracture propagation according to claim 1, characterized in that: the clamping mechanism comprises a placing shell (11), a vertical plate (17), a moving shell (19), a moving plate (20), fastening bolts (21), clamping plates (22), a mounting seat (18) and a display screen (23), wherein the placing shell (11) is fixedly connected to the top side surface of a limiting plate (9), the back side top of the placing shell (11) is fixedly connected with the bottom side surface of the vertical plate (17), the moving shell (19) is fixedly connected to the surfaces of the two opposite sides of the vertical plate (17), the moving plate (20) is slidably connected to the inner cavity of the moving shell (19), the fastening bolts (21) are connected to the back side surface of one end, far away from the vertical plate (17), of the moving shell (19), one side surface of the moving plate (20) is fixedly connected to the side surface of the clamping plates (22), and the mounting seat (18) is connected to a clamping block in a placing groove on the top side of the placing shell (11), the front side surface of the mounting seat (18) is fixedly connected with a display screen (23).
8. The experimental simulation demonstration device for coal seam fracturing fracture propagation according to claim 7, characterized in that: the number of the clamping plates (22) is two, and the two clamping plates (22) are symmetrically distributed around the display screen (23).
9. The experimental simulation demonstration device for coal seam fracturing fracture propagation according to claim 7, characterized in that: the tail end of the fastening bolt (21) penetrates through the side surface of the movable shell (19), and the tail end of the fastening bolt (21) is tightly attached to the surface of the movable plate (20).
10. The experimental simulation demonstration device for coal seam fracturing fracture propagation according to claim 7, characterized in that: the front side surface of the vertical plate (17) is in sliding fit with the back side surface of the mounting seat (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110462980.7A CN113187998A (en) | 2021-04-23 | 2021-04-23 | Experimental simulation demonstration device for coal seam fracturing crack expansion |
Applications Claiming Priority (1)
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