CN2858072Y - Energy saving vibrating sieve - Google Patents

Abstract

An energy saving vibrating sieve is characterized in that: two dual out shafts motors are disposed at both sides of a motor bracket and connected with the it, and both ends of each dual out shafts motor are connected respectively with two vibration exciters, which mutually connect with each other by gimbals, by petal shaft couplings, and each sieve box has four vibration exciters connected with it, and the lower end of the vibration box is connected with a sieve screen, the four corners of the vibration box are connected with secondary vibration isolating bracket and vibration isolating springs. The advantages of the present utility model are as following: motor power is low, so the operation energy consumption is accordingly low, and the self synchronous movement of each of the two sieve boxes in vertical plane can be ensured. The vibration exciters have the same structure thereby availing for generalization and serialization, and, as independent vibration source, are connected with rectangular beams by high strength bolt, thereby being easily assembled and detached and maintained. The vibrating sieve is in favor of the maximization of the sieve machine, and the ratio between the length and the width of the sieve box is approach, and the integral rigidity of a vibrating frame is excellent, and the vibration exciting force for generating required amplitude is supported by eight bearings of the four vibration exciters installed on each sieve box, so that the force status of the sieve is friendly; and the secondary vibration isolating bracket can achieve the large amplitude vibration for sieving the material which is hard to be separated.

Description

The energy-saving vibration sieve

Technical field

The utility model relates to a kind of energy-saving vibration sieve.

Background technology

Vibratory sieve is an indispensable stock grading equipment in the industries such as coal, mine, metallurgy, water power.Because existing screening machine adopts single screen box vibration, in order to take up eccentric mass, electric motor starting power is big, and energy consumption is also big in the running.People study a kind of resonance screens, utilize resonance principle energy-conservation, but there is following shortcoming in this resonance screens: (1) need to install balancing stand with alleviate pass to building dynamic load, thereby increase sieve weight; (2) quality requirement to flexible member is tight; (3) the adjustment difficulty is installed, technical complexity, parts are perishable, and fault is many.Therefore resonance screens are difficult to promote.

Summary of the invention

The purpose of this utility model provides a kind of energy-saving vibration sieve, and its power of motor is little, and the running energy consumption is low.

The utility model is achieved like this, it comprises discharge device, vibrator, universal joint, lobe shape shaft coupling, twoly go out spindle motor, screen cloth, charging gear, electric machine support, the two-stage vibration isolation frame, screen box, isolation spring, it is characterized in that: the electric machine support both sides connect two pairs respectively and go out spindle motor, each pair goes out the spindle motor two ends and connects two vibrators respectively by debating the shape shaft coupling, connect by universal joint between the vibrator, connect four vibrators on each screen box, the screen box lower end connects screen cloth, screen box four ends connect two-stage vibration isolation frame and isolation spring, and the eccentric mass position of the vibrator on two screen boxs differs 180 degree.

The utility model has the advantages that: power of motor is little, and the running energy consumption is low; Adopt lobe shape shaft coupling, can guarantee motor synchronizing in each comfortable vertical plane of two screen boxs; Each exciter structure is identical, is convenient to generalization, seriation, and vibrator connects with high-strength bolt with the screen box rectangular beam as exciting source independently, dismounting, keep in repair very convenient; Be beneficial to screen(ing) machine and maximize, each screen box length and width is than approaching, and the screen frame integral rigidity is good, and the exciting force of required amplitude is born by four vibrator eight cover bearings on each screen box, and force-bearing situation is good; Be provided with the two-stage vibration isolation frame, can realize the large-amplitude vibration of difficult screening material.

Description of drawings

Fig. 1 is a front view of the present utility model.

Fig. 2 is a left view of the present utility model.

In the drawings 1, discharge device 2, vibrator 3, universal joint 4, lobe shape shaft coupling 5, twoly go out spindle motor 6, screen box 7, charging gear 8, electric machine support 9, two-stage vibration isolation frame 10, screen cloth 11, isolation spring

The specific embodiment

As Fig. 1, shown in Figure 2, the utility model comprises discharge device (1), vibrator (2), universal joint (3), lobe shape shaft coupling (4), twoly go out spindle motor (5), screen cloth (10), charging gear (7), electric machine support (8), two-stage vibration isolation frame (9), screen box (6), isolation spring (11), it is characterized in that: electric machine support (8) both sides connect two pairs respectively and go out spindle motor (5), each pair goes out the spindle motor two ends and connects two vibrators (2) respectively by debating shape shaft coupling (4), connect by universal joint (3) between the vibrator, each screen box (6) is gone up and is connected four vibrators (2), the screen box lower end connects screen cloth (10), screen box four ends connect two-stage vibration isolation frame (9) and isolation spring (11), and the eccentric mass position of the vibrator on two screen boxs differs 180 and spends.During vibratory sieve work, two shaft motor-driven lobe shape shaft couplings drive vibrator on two screen boxs, use universal joint between the vibrator) connect.Because vibrator eccentric mass position differs 180 degree on two screen boxs, the eccentric mass statical moment is cancelled out each other, and electric motor starting power is little, starting is fast, can select the motor of long-pending screen(ing) machine one half-power of coplanar for use, and operation process mainly bears external drag square and less wearing resistance square, power consumption is few.Like this, two each self-excited oscillations of screen box, the amplitude phase difference also is 180 degree, four vibrators of each screen box reach motor synchronizing, realize the screen box rectilinear motion.Screen(ing) machine inclination 20-25 degree is installed, and material enters from charging gear (7), comes out from discharge device (1), sieve material by conducting oneself with dignity along the compass screen surface whereabouts of moving, the screening of realization material.In order to realize the large-amplitude vibration of difficult screening material, be provided with the two-stage vibration isolation frame, reduce the screen(ing) machine dynamic load, alleviate impact to building lot.

Claims (2)

1, a kind of energy-saving vibration sieve, it comprises discharge device, vibrator, universal joint, lobe shape shaft coupling, twoly goes out spindle motor, screen cloth, charging gear, electric machine support, two-stage vibration isolation frame, screen box, isolation spring, it is characterized in that: the electric machine support both sides connect two pairs respectively and go out spindle motor, each pair goes out the spindle motor two ends and connects two vibrators respectively by debating the shape shaft coupling, connect by universal joint between the vibrator, connect four vibrators on each screen box, the screen box lower end connects screen cloth, and screen box four ends connect two-stage vibration isolation frame and isolation spring.

2 energy-saving vibrations according to claim 1 sieve is characterized in that: the eccentric mass position of the vibrator on two screen boxs differs 180 degree.

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