Coal mine multi-stage sorting device
Technical Field
The invention relates to the field of coal mine separation, in particular to a coal mine multi-stage separation device.
Background
The excavated coal is required to be classified according to different particle sizes, in the existing screening method, although the coal is classified according to the particle sizes by means of multistage screening, the coal particles are not uniformly spherical, so that the plugging holes of the screen plates are blocked, the screening efficiency is affected, when the blocking is too much, the screening device cannot be used, the screen plates are removed, cleaned or replaced, however, the screen holes on the screen plates are numerous, the cleaning is very time-consuming, and the cleaned coal blocks are required to be returned to the screening device for secondary screening, so that the coal mine separation efficiency is further lowered.
Disclosure of Invention
The invention aims to provide a coal mine multi-stage sorting device which aims to solve the problems in the background technology.
The coal mine multi-stage sorting device comprises a screen box and screen plates, wherein a feed inlet is formed in the upper end of the screen box, a plurality of discharge holes are formed in the side face of the screen box, a plurality of screen plates are arranged in the screen box, anti-blocking supports are arranged below each screen plate, anti-blocking components are arranged on the anti-blocking supports and connected to a moving box, the moving box is fixed below the screen plates, the anti-blocking components are used for decelerating falling coal blocks and dredging the screen plates, and the moving box drives the anti-blocking supports to move so as to switch the two functions of deceleration and dredging;
the sieve plate is provided with a plurality of sieve holes, each sieve hole is communicated with a baffle rod groove, and the baffle rod grooves are arranged on the sieve plate;
The anti-blocking assembly comprises rod assemblies and driving assemblies, the number of the rod assemblies is consistent with the number of sieve holes on a sieve plate connected with the rod assemblies, the driving assemblies are connected with the movable box, and the states of the rod assemblies are controlled simultaneously through the driving assemblies;
The rod assembly comprises a center rod and an opening rod, the lower end of the center rod is fixedly connected to the anti-blocking support, a plurality of opening rods are arranged outside the center rod, one end of an opening rack is fixedly connected to each opening rod, the other end of the opening rack extends into and is in sliding connection with the center rod, the opening rack is meshed with an opening gear, the opening gear is fixedly connected with a transmission gear, the opening gear is rotatably connected in the center rod, and the transmission gear is rotatably connected in the anti-blocking support;
The driving assembly comprises a main rack, driving gears and driving racks, wherein the driving racks are arranged in two and are fixedly connected to the movable box, the driving racks can be meshed with the driving gears, the driving gears are meshed with the main rack, the main rack is meshed with a plurality of row gears, each row of gears is meshed with one row of racks, the row racks are meshed with a plurality of transmission gears, the driving gears and the row gears are rotationally connected to the anti-blocking support, and the main rack and the row racks are slidably connected to the anti-blocking support.
Preferably, the square deflector of pass through axle fixed connection in the removal case, this epaxial rotation is connected the gear wheel, fixed fifth wheel slide rail on the gear wheel, the one end of sliding connection guide pin in the wheel slide rail, the other end of guide pin is articulated with the one end of interlock pole, and guide pin middle part sliding connection is outside the deflector, the interlock pole other end is articulated with the slip post middle part, slip post one end sliding connection in the guide way, the other end stretches out removal case and prevents stifled support fixed connection, the guide way sets up on the deflector, is provided with stop gear on the slip post.
Preferably, the stop gear includes telescopic link, gag lever post, telescopic link one end fixed connection slip post, the one end of other end fixed connection gag lever post, the other end of gag lever post slides in the spacing groove of vertical setting, and the spacing groove sets up on the travelling box, and the telescopic link is passive telescopic link.
Preferably, the large gear is meshed with the small gear, the small gear is fixedly connected with the output end of the motor, and the motor is fixed in the movable box.
Compared with the prior art, the invention has the beneficial effects that the rod assemblies in the anti-blocking assembly are utilized to dredge sieve holes of the sieve plate, the sieve plate is not required to be detached in the dredging process, when dredging is not required, the rod assemblies form shielding barriers on the sieve plate, the rolling speed of coal blocks is slowed down, the coal blocks are prevented from leaving a sieve box without sieving, the moving box is utilized to drive the anti-blocking support to move to realize the switching of two functions, and one sieve plate is provided with the moving box to realize the dredging of a single sieve plate.
Drawings
FIG. 1 is a schematic diagram of the main structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of another angle of the cross-sectional structure of the present invention;
FIG. 4 is a schematic view of the structure of the mobile case of the present invention;
FIG. 5 is a schematic view showing the internal structure of the mobile case of the present invention;
FIG. 6 is a schematic view of the construction of the lever assembly of the present invention;
FIG. 7 is a schematic view of another angle of the lever assembly of the present invention;
FIG. 8 is a schematic view of the structure of the opening gear of the present invention;
Fig. 9 is a schematic structural view of a driving assembly according to the present invention.
In the figure, 1, a screen box, 101, a feed inlet, 102, a discharge outlet, 2, a screen plate, 201, screen holes, 202, a baffle rod groove, 3, an anti-blocking assembly, 301, a center rod, 302, an opening rod, 303, an opening gear, 304, a transmission gear, 305, an opening rack, 306, a row rack, 307, a row gear, 308, a main rack, 309, a driving gear, 310, a driving rack, 4, an anti-blocking bracket, 5, a moving box, 501, a large gear, 502, a pinion, 503, a guide plate, 504, a guide groove, 505, a sliding column, 506, a wheel slide rail, 507, a telescopic rod, 508, a limit rod, 509, a limit groove, 510, a linkage rod, 511 and a guide pin.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, in order to solve the problem that coal particles can cause plugging of a sieve plate hole, the purpose of dredging sieve holes of the sieve plate by utilizing a rod assembly in an anti-blocking assembly is achieved, the sieve plate is not required to be detached in the dredging process, when dredging is not required, the rod assembly forms a shielding barrier on the sieve plate, the rolling speed of coal blocks is slowed down, the coal blocks are prevented from leaving a sieve box without sieving, the moving box is utilized to drive an anti-blocking support to move so as to realize switching of two functions, one sieve plate is provided with a moving box, and dredging to a single sieve plate is realized. The application provides a technical scheme that the coal mine multi-stage sorting device comprises a screen box 1 and screen plates 2, wherein a feed inlet 101 is formed in the upper end of the screen box 1, a plurality of discharge outlets 102 are formed in the side face of the screen box 1, a plurality of screen plates 2 are arranged in the screen box 1, anti-blocking supports 4 are arranged below each screen plate 2, anti-blocking components 3 are arranged on the anti-blocking supports 4, the anti-blocking supports 4 are connected to a movable box 5, the movable box 5 is fixed below the screen plates 2, the anti-blocking components 3 are used for enabling falling coal blocks to be decelerated and dredging the screen plates 2, and the movable box 5 drives the anti-blocking supports 4 to move so as to switch between deceleration and dredging functions. The sieve plate 2 is provided with a plurality of sieve holes 201, each sieve hole 201 is communicated with a baffle rod groove 202, and the baffle rod grooves 202 are arranged on the sieve plate 2. In the application, the electric elements such as the motor cylinder push rod and the like are all of the existing types. During the use, add the coal cinder to feed inlet 101, the coal cinder falls on sieve 2 and sieves, and sieve 2 slope sets up, and the coal cinder rolls above that, and the pole subassembly obstructs the roll of coal cinder and makes its roll track change to guarantee to fully sieve, the coal after sieving is carried away through modes such as conveyer belt and is carried away and carry out next process. The screen plate 2 can vibrate in a mode of matching a cam with a motor and the like according to requirements, so that screening efficiency is further improved. When screening is completed and dredging is needed, the anti-blocking support 4 is driven to move by the movable box 5, and the anti-blocking support 4 drives the anti-blocking component 3 to move, so that the rod component comes out of the rod baffle groove 202 and enters the sieve holes 201 for dredging.
For the convenience dredges sieve mesh 201, be provided with anti-blocking assembly 3, anti-blocking assembly 3 includes pole subassembly and drive assembly, and the quantity of pole subassembly is unanimous with sieve mesh 201 quantity on its sieve 2 that is connected, and drive assembly is connected with removal case 5, through the state of drive assembly simultaneous control a plurality of pole subassemblies. The rod assembly comprises a center rod 301 and an opening rod 302, wherein the lower end of the center rod 301 is fixedly connected to the anti-blocking support 4, a plurality of opening rods 302 are arranged outside the center rod 301, one end of an opening rack 305 is fixedly connected to each opening rod 302, the other end of the opening rack 305 extends into and is in sliding connection with the center rod 301, the opening rack 305 is meshed with an opening gear 303, the opening gear 303 is fixedly connected with a transmission gear 304, the opening gear 303 is rotatably connected to the center rod 301, and the transmission gear 304 is rotatably connected to the anti-blocking support 4. The central rod 301 may be polygonal or circular in shape, and the flaring rods 302 are also configured such that the flaring racks 305 on the plurality of flaring rods 302 are positioned at different heights to avoid interference and thereby achieve greater travel. The driving assembly comprises a main gear rack 308, driving gears 309 and driving gear racks 310, wherein the driving gear racks 310 are arranged in two, are fixedly connected to the movable box 5, the driving gear racks 310 can be meshed with the driving gear racks 309, the driving gear racks 309 are meshed with the main gear rack 308, the main gear rack 308 is meshed with a plurality of row gear racks 307, each row gear rack 307 is meshed with one row gear rack 306, the row gear racks 306 are meshed with a plurality of transmission gears 304, the driving gear racks 309 and the row gear racks 307 are rotatably connected to the anti-blocking support 4, and the main gear racks 308 and the row gear racks 306 are slidably connected to the anti-blocking support 4. When the sieve plate is used, the moving box 5 is started, the sliding column 505 of the moving box 5 drives the anti-blocking support 4 to move downwards firstly, the anti-blocking support 4 drives the anti-blocking assembly 3 to descend, the rod assembly part is completely separated from the rod baffle groove 202 of the sieve plate 2, then the sliding column 505 of the moving box 5 drives the anti-blocking support 4 to move transversely, the driving gear 309 is meshed with the driving rack 310 below in the moving process of the anti-blocking support 4, so that the driving gear 309 rotates, the driving gear 309 drives the main rack 308 to move, the main rack 308 drives the plurality of row gears 307 to rotate, the row rack 306 is driven by the row rack 307 to move, the plurality of transmission gears 304 rotate, the transmission gear 304 drives the opening gear 303 to rotate, the opening gear 303 rotates to drive the plurality of opening racks 305 to stretch out in a sliding manner, the opening rack 305 drives the opening rod 302 to be far away from the central rod 301, the contact area of the rod assembly is increased, finally, the moving box 5 drives the anti-blocking support 4 to move transversely to jack coal blocks clamped in the sieve holes 201, the driving gear 309 is meshed with the driving rack 310 above again, the driving gear 307 rotates, the row rack 306 drives the row racks 306 to rotate, the opening racks 302 are driven by the driving gear 302 to move, and the opening rod assembly is completely retracted into the central rod assembly 301, and the opening rod assembly is completely retracted after the opening rod assembly is completely separated from the central rod 301.
In order to realize the motion of the anti-blocking support 4, a square guide plate 503 is fixedly connected in the movable box 5 through a shaft, a large gear 501 is rotatably connected on the shaft, a connecting wheel sliding rail 506 is fixed on the large gear 501, one end of a guide pin 511 is slidably connected in the wheel sliding rail 506, the other end of the guide pin 511 is hinged with one end of a linkage rod 510, the middle part of the guide pin 511 is slidably connected outside the guide plate 503, the other end of the linkage rod 510 is hinged with the middle part of a sliding column 505, one end of the sliding column 505 is slidably connected in a guide groove 504, the other end of the sliding column extends out of the movable box 5 and is fixedly connected with the anti-blocking support 4, the guide groove 504 is arranged on the guide plate 503, and a limiting mechanism is arranged on the sliding column 505. The limiting mechanism comprises a telescopic rod 507 and a limiting rod 508, one end of the telescopic rod 507 is fixedly connected with the sliding column 505, the other end of the telescopic rod is fixedly connected with one end of the limiting rod 508, the other end of the limiting rod 508 slides in a vertically arranged limiting groove 509, the limiting groove 509 is arranged on the movable box 5, and the telescopic rod 507 is a passive telescopic rod. The large gear 501 is meshed with the small gear 502, the small gear 502 is fixedly connected with the output end of a motor, and the motor is fixed in the movable box 5. When the anti-blocking device is used, the motor is started, the motor drives the pinion 502 to rotate, the pinion 502 drives the large gear 501 to rotate, the large gear 501 drives the wheel slide rail 506 to rotate, the wheel slide rail 506 drives the guide pin 511 to slide along the outer ring of the guide plate 503, the guide pin 511 drives the linkage rod 510 to move, the linkage rod 510 drives the sliding column 505 to slide in the guide groove 504, in the process, in order to avoid the sliding column 505 from rotating, the sliding column 505 drives the telescopic rod 507 to stretch out and draw back passively and move, the telescopic rod 507 drives the limiting rod 508 to slide in the limiting groove 509, and in the process, the sliding column 505 drives the anti-blocking support 4 to move so as to enable the anti-blocking support 4 to realize the switching of dredging sieve holes and blocking falling.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.