Utility model content
Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides a kind of mine screening plant, and structure is simple, is convenient to dismounting, assembling and transport, is applicable to applying; Can effectively avoid screen cloth to block, improve its operating efficiency; Reduce material to the impact of shining net, make its life-span permanent.
The technical solution adopted in the utility model is as follows:
Mine of the present utility model screening plant, comprises frame and sifting bed, and described sifting bed is placed in frame by damping, and described sifting bed is provided with vibrator, and the motor that described frame is arranged connects vibrator by V belt translation, and the bottom of described sifting bed is provided with hopper.
Due to said structure, by motor by driving the vibrator with eccentric mass, thus make sifting bed do periodic asymmetric reciprocating machine vibration, material bed loose on compass screen surface to leave compass screen surface tossed, thin stage material can be fallen through the bed of material, be separated by sieve aperture, and the material be stuck in sieve aperture is shaken, thin stage material lower portion moves, and is got rid of by screen cloth.
Mine of the present utility model screening plant, described sifting bed is placed in frame by four dampings, the groups of springs that described damping comprises the spring base be located on sifting bed, is located at the spring seat in frame and is located between spring seat and spring base, described groups of springs is made up of two groups of springs, described spring seat and spring base are equipped with spring retainer post, and the two ends of described groups of springs are mated with spring retainer post respectively.
Due to said structure, by four dampings, sifting bed now can be moved up and down for frame, thus the effect of vibrated material can be played under the effect of vibrator; Wherein in order to reach good vibrating effect, often organizing damping and forming by two groups of springs, in order to the displacement of restraining spring, guaranteeing the vibration safety of vibratory sieve, sifting bed and frame arrange the limited post two ends to spring respectively and limits.
Mine of the present utility model screening plant, the middle part of described sifting bed is provided with two vibrators, and described frame is provided with two motors, and wherein vibrator connects corresponding motor by V belt translation; Described vibrator is A seating block eccentric activator, and described vibrator is connected on sifting bed by self-aligning roller bearing.
Due to said structure, adopt two vibrators to carry out eccentric vibrating to sifting bed simultaneously, can ensure that the vibrating effect of sifting bed is better, the wherein corresponding motor of each vibrator, also namely each vibrator can respectively by independent driven by motor, and two motors can be connected in control system, by two its rotating speeds of Electric Machine Control, thus ensure that two vibrators are mutually corresponding, avoid mutual interference.
Mine of the present utility model screening plant, described sifting bed comprises side plate, ground floor screen cloth, second layer screen cloth and third layer screen cloth, wherein three layers of screen slope be arranged in parallel between biside plate, wherein said vibrator between second layer screen cloth and third layer screen cloth through biside plate.
Due to said structure, multilayer screening can be carried out to material respectively by three layers of screen cloth, make screening effect better; Be excited at the same time device between second layer screen cloth and third layer screen cloth through biside plate, exciting effect is played to whole sifting bed, thus reach sifting bed vibrate, meet material and screen.
Mine of the present utility model screening plant, described ground floor screen cloth is presser type screen cloth, is provided with some tie-beams between described biside plate, and described presser type screen cloth is fixed on tie-beam by the Anchor plate kit that cooperatively interacts and U bolt; Described second layer screen cloth adopts belt pressing type screen cloth, the both sides of described belt pressing type screen cloth are connected on biside plate by tensioning plate tensioning, the medium position of described belt pressing type screen cloth is fixed on crossbeam, wherein be provided with some crossbeams between biside plate, between described crossbeam, be provided with the support member of support belt pressure type screen cloth; Described third layer screen cloth adopts tension type screen cloth, the both sides of described tension type screen cloth are connected on biside plate by tensioning plate tensioning, described tension type screen cloth to be fixedly connected on U-shaped beam at middle part by two sections of screen clothes and to form, some U-shaped beams are provided with between described biside plate, the below of two sections of screen clothes is provided with the O shape rubber strip be placed on U-shaped beam, and the both sides of described tension type screen cloth are connected on biside plate by tensioning plate tensioning.
Due to said structure, extension supporting part under second layer screen cloth, guarantees that its structure is more surely leaned on, and sets up O shape rubber strip simultaneously, effectively alleviate material to the impact of screen cloth and vibration, screen cloth longer service life under third layer screen cloth.
Mine of the present utility model screening plant, described motor is connected on control circuit, and described control circuit comprises self-locking protective circuit, delayed startup circuit for reversing and reverse rotating brake circuit; Wherein said delayed startup circuit for reversing comprises auxiliary reclay and the time relay; Described reverse rotating brake circuit comprises the time relay and contactor; Described self-locking protective circuit is made up of contactor, start button, stop button and electrothermal relay.
Due to said structure, first can trigger start button in use, positive contactor one is energized closed, and sieve starts fast and enters duty, and now, auxiliary reclay is also energized adhesive self-locking.During stopping, triggering start button, contactor one dead electricity discharges, the normally closed electric shock of contactor one resets, the time relay one timing closing contact through delay time (can arrange according to demand), the adhesive of reversion contactor two, motor reversal is braked, and produces braking moment.The time relay two is energized simultaneously, closes after delay time (can arrange according to demand), the power-off of reversion contactor one; the time relay two delay cut-off contact disconnects simultaneously, auxiliary reclay power-off, and motor reversal braking stops; motor stalls, vibratory sieve is steadily shut down.Therefore after this patent makes vibratory sieve shut down, inertia operation certain hour starts to carry out reverse rotating brake, and after reversion certain hour, make sieve fast skip resonance point and reach equalising torque, power-off is shut down.
Mine of the present utility model screening plant, described vibrator is provided with vibrator oil inlet and outlet, and the oil inlet and outlet of described vibrator connects the oil inlet and outlet of lubricating oil station respectively by lubricating oil pipe correspondence; The oil-out place of described lubricating oil station is provided with cooling device, the cooler that this cooling device comprises the oil-out place being installed on lubricating oil station and the cooling fan be located in cooler, described cooler is provided with the radiating tube of some cyclic bendings, and described radiating tube is communicated with oil-out and the lubricating oil pipe of lubricating oil station.
Due to said structure, by lubricating oil station, low for temperature lubricating oil is forced to pour in vibrator, again by lubricating oil high for temperature in vibrator extract out and through cooler cooling after, formed by the thin oil cooling recirculation system circulated, thus the lubricating system adopting which to be circulated by thin oil, can lubricate vibrator bearing fully, and reduce bearing operation temperature, add the lubrication of bearing, improve life-span used and the stability in use of bearing.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
Mine of the present utility model screening plant, structure is simple, is convenient to dismounting, assembling and transport, is applicable to applying; Can effectively avoid screen cloth to block, improve its operating efficiency; Reduce material to the impact of shining net, make its life-span permanent.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment 1
As depicted in figs. 1 and 2, mine of the present utility model screening plant, comprise frame 1 and sifting bed 2, described sifting bed 2 is placed in frame 1 by damping, described sifting bed 2 is provided with vibrator 4, the motor 5 that described frame 1 is arranged connects vibrator 4 by V belt translation, and the bottom of described sifting bed 2 is provided with hopper 6; Wherein said sifting bed 2 is placed in frame 1 by four dampings, the groups of springs that described damping comprises the spring base 301 be located on sifting bed 2, is located at the spring seat in frame 1 and is located between spring seat and spring base 301, described groups of springs is made up of two groups of springs, described spring seat and spring base 301 are equipped with spring retainer post, and the two ends of described groups of springs are mated with spring retainer post respectively; The middle part of described sifting bed 2 is provided with 1 vibrator 4, and described frame 1 is provided with 1 motor 5, and wherein vibrator 4 connects motor 5 by V belt translation; Described vibrator 4 is A seating block eccentric activator, and described vibrator 4 is connected on sifting bed 2 by self-aligning roller bearing; Described sifting bed 2 comprises side plate 201, ground floor screen cloth 202, second layer screen cloth 203 and third layer screen cloth 204, wherein three layers of screen slope be arranged in parallel between biside plate 201, wherein said vibrator 4 between second layer screen cloth 203 and third layer screen cloth 204 through biside plate 201; Described ground floor screen cloth 202 is presser type screen cloth, is provided with some tie-beams between described biside plate 201, and described presser type screen cloth is fixed on tie-beam by the Anchor plate kit 206 cooperatively interacted with U bolt; Described second layer screen cloth 203 adopts belt pressing type screen cloth, the both sides of described belt pressing type screen cloth are connected on biside plate 201 by tensioning plate tensioning, the medium position of described belt pressing type screen cloth is fixed on crossbeam, wherein be provided with some crossbeams between biside plate 201, between described crossbeam, be provided with the support member of support belt pressure type screen cloth; Described third layer screen cloth 204 adopts tension type screen cloth, the both sides of described tension type screen cloth are connected on biside plate 201 by tensioning plate tensioning, described tension type screen cloth to be fixedly connected on U-shaped beam at middle part by two sections of screen clothes and to form, some U-shaped beams are provided with between described biside plate 201, the below of two sections of screen clothes is provided with the O shape rubber strip be placed on U-shaped beam, and the both sides of described tension type screen cloth are connected on biside plate 201 by tensioning plate tensioning;
Described motor is connected on control circuit, and described control circuit comprises self-locking protective circuit, delayed startup circuit for reversing and reverse rotating brake circuit; Wherein said delayed startup circuit for reversing comprises auxiliary reclay and the time relay; Described reverse rotating brake circuit comprises the time relay and contactor; Described self-locking protective circuit is made up of contactor, start button, stop button and electrothermal relay.First can trigger start button in use, positive contactor one is energized closed, and sieve starts fast and enters duty, and now, auxiliary reclay is also energized adhesive self-locking.During stopping, triggering start button, contactor one dead electricity discharges, the normally closed electric shock of contactor one resets, and the time relay one timing closing contact is set to 8 seconds (can arrange according to demand) through this example of delay time, the adhesive of reversion contactor two, motor reversal is braked, and produces braking moment.The time relay two is energized simultaneously; be set to close after (can arrange according to demand) for 3 seconds through this example of delay time; the power-off of reversion contactor one; the time relay two delay cut-off contact disconnects simultaneously; auxiliary reclay power-off; motor reversal braking stops, and motor stalls, vibratory sieve is steadily shut down.Therefore after this patent makes vibratory sieve shut down, inertia operation certain hour starts to carry out reverse rotating brake, and after reversion certain hour, make sieve fast skip resonance point and reach equalising torque, power-off is shut down.
Described vibrator 4 is provided with vibrator oil inlet and outlet, and the oil inlet and outlet of described vibrator 4 connects the oil inlet and outlet of lubricating oil station respectively by lubricating oil pipe correspondence; The oil-out place of described lubricating oil station is provided with cooling device, the cooler that this cooling device comprises the oil-out place being installed on lubricating oil station and the cooling fan be located in cooler, described cooler is provided with the radiating tube of some cyclic bendings, and described radiating tube is communicated with oil-out and the lubricating oil pipe of lubricating oil station.By lubricating oil station, low for temperature lubricating oil is forced to pour in vibrator, again by lubricating oil high for temperature in vibrator extract out and through cooler cooling after, formed by the thin oil cooling recirculation system circulated, thus adopt the lubricating system which is circulated by thin oil, can lubricate vibrator bearing fully, and reduce bearing operation temperature, add the lubrication of bearing, improve life-span used and the stability in use of bearing.
Embodiment 2
Embodiment 2 is similar to embodiment 1, and its difference is: the middle part of described sifting bed 2 is provided with two vibrators 4, and described frame 1 is provided with two motors 5, and wherein vibrator 4 connects corresponding motor 5 by V belt translation; Described vibrator 4 is A seating block eccentric activator, and described vibrator 4 is connected on sifting bed 2 by self-aligning roller bearing; Wherein two motors 5 can be connected in control system, are regulated unlatching and the rotating speed of two motors 5 by control system, then regulate two vibrators 4 matched motion mutually, strengthen the vibration of sifting bed, thus make screening efficiency higher; Can avoid mutually interfering between two vibrators 4 simultaneously.
To sum up, mine of the present utility model screening plant, structure is simple, is convenient to dismounting, assembling and transport, is applicable to applying; Can effectively avoid screen cloth to block, improve its operating efficiency; Reduce material to the impact of shining net, make its life-span permanent.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.