CN215142026U - Double-shaft circular vibrating screen - Google Patents

Abstract

The utility model discloses a double-shaft circular vibrating screen, which comprises a frame, supporting legs, a movable connection between the frame and the supporting legs, two connecting blocks are symmetrically fixed on the two sides of the outer wall at the bottom end, a telescopic cylinder is fixedly connected on the lower surface of the connecting blocks, the inside of the telescopic cylinder is movably connected with a telescopic rod, the retractable length of the telescopic rod is less than the length of the telescopic cylinder, a supporting block is welded on the outer wall at the top end of the supporting leg, a circular hole is arranged in the middle of the supporting block in a penetrating way, the lower end of the telescopic rod passes through the circular hole and extends towards the inside of the supporting leg, a movable block is fixedly connected on the bottom end of the telescopic rod and is positioned in the supporting leg, a matching hole is arranged on the supporting leg corresponding to the movable block, the matching hole is matched with the shape and the size of the movable block, the movable block is a sphere, the diameter of the movable block is larger than the width of the telescopic rod, a spring is also sleeved on the telescopic rod, the upper end of the spring is fixed on the connecting block, the lower end is fixed on the supporting block.

Description

Double-shaft circular vibrating screen

Technical Field

The utility model relates to a biax circular vibrating screen technical field especially relates to a biax circular vibrating screen.

Background

At present, a vibrating screen generally consists of a vibrating mechanism, a screen box, a spring, a transmission, a support and the like, and is called a circular vibrating screen because it has a circular vibrating track. The double-shaft high-efficiency circular vibrating screen is a novel high-efficiency vibrating screen which can perform circular vibration and is provided with multiple layers. The double-shaft high-efficiency circular vibrating screen adopts a cylinder type eccentric shaft vibration exciter and a bias block to adjust the amplitude, the material screening line is long, and the screening specification is large.

Biax circular vibrating screen is at the during operation, drives the sieve case by vibration mechanism and carries out vibratory screening, and the sieve case is when the vibration, and the frame can be given in the vibration, gives the supporting leg through the frame transmission again, and the supporting leg is receiving under the condition of long-term vibration, produces wearing and tearing easily. For this purpose, a damping mechanism is provided between the frame and the support legs, which is capable of absorbing most of the vibrations.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a biax circular vibrating screen, the activity damping mechanism of setting is under the help of spherical movable block for telescopic link and spring can carry out the swing of arbitrary angle, and this activity damping mechanism can absorb the ascending vibration of arbitrary side promptly, and in addition the deformation of spring and the motion of telescopic link, it has absorbed the most vibration of frame transmission, makes the vibration that the supporting leg received significantly reduce, has prolonged the life of supporting leg.

In order to achieve the above object, the utility model adopts the following technical scheme: a double-shaft circular vibrating screen comprises a frame, wherein a screen box is arranged in the middle of the frame, movable vibration reduction mechanisms are symmetrically arranged on two sides of the outer wall of the bottom end of the frame and are movably connected with two supporting legs through the movable vibration reduction mechanisms, each movable vibration reduction mechanism comprises a connecting block, and the connecting blocks are fixed on two sides of the outer wall of the bottom end of the frame; the telescopic cylinder is fixedly connected with the lower surface of the connecting block; the telescopic rod is movably connected inside the telescopic cylinder; the supporting block is welded on the outer wall of the top end of the supporting leg, a circular hole is formed in the middle of the supporting block in a penetrating mode, and the lower end of the telescopic rod penetrates through the circular hole and extends towards the inside of the supporting leg; the movable block is connected with the bottom end of the telescopic rod and positioned inside the supporting leg, a matching hole is formed in the supporting leg corresponding to the movable block, and the matching hole is matched with the movable block in shape and size; and the spring is sleeved outside the telescopic rod, the upper end of the spring is fixed on the connecting block, and the lower end of the spring is fixed on the supporting block.

As an optimal technical scheme of the utility model, install the synchronous ware on one side outer wall of sieve case, two the same actuating mechanism are connected respectively to the both sides of synchronous ware.

As a preferred technical scheme of the utility model, actuating mechanism includes driving motor, driving motor installs on the fixing base, has cup jointed the drive belt on its output, outside the drive wheel was located to the other pot head of drive belt, the coaxial eccentric shaft that is provided with in the drive wheel, the other end tip and the synchronizer bearing of eccentric shaft are connected, and all overlap on its front end and the rear end and be equipped with the eccentric block.

As an optimized technical scheme of the utility model, the collapsible length of telescopic link is less than its length itself.

As an optimal technical scheme of the utility model, be provided with the cushion on the bottom outer wall of supporting leg, the cross section of cushion is greater than the cross section of supporting leg.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) when the device works, the screen box is vibrated to start vibrating screening, the vibration is transmitted to the frame through the screen box, the frame is vibrated along with the vibration, a force is applied to the telescopic cylinder and the spring in the vibrating process of the frame, the spring is deformed by the force, it is compressed or stretched, and the telescopic cylinder moves up and down, so that the telescopic rod is contracted or stretched, in the process, most of vibration is absorbed by the deformation of the spring and the movement of the telescopic cylinder, and meanwhile, as the telescopic rod is connected with the movable block, the spherical movable block rotates repeatedly in the spherical movable groove and cannot be separated, the telescopic rod and the spring can swing at any angle, the movable vibration damping mechanism can absorb vibration in any direction, so that the vibration borne by the supporting legs is greatly reduced under the matching of the spring and the telescopic rod, and the service life of the supporting legs is prolonged;

(2) the device starts a driving motor when working, the driving motor drives a driving wheel to rotate through a driving belt, the driving wheel drives an eccentric shaft, the eccentric shaft drives an eccentric block, the eccentric shaft, the eccentric block and a synchronizer convert kinetic energy brought by the driving motor into vibration with a circular track, and the vibration is transmitted to a screen box, so that the screen box can be screened. The device is two main shaft structures, and the hold-in range synchronous revolution makes the sieve case can sieve through turning into the vibration with kinetic energy, and the amplitude is big frequency height, makes the work efficiency of device obtain the reinforcing.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the structural schematic diagram of the movable damping mechanism of the present invention.

Fig. 3 is a side view of the present invention.

Wherein, the names corresponding to the reference numbers are:

1. supporting legs; 2. a frame; 3. a screen box; 4. a fixed seat; 5. a drive motor; 6. a transmission belt; 7. a driving wheel; 8. an eccentric block; 9. an eccentric shaft; 10. connecting blocks; 11. a spring; 12. a telescopic cylinder; 13. a telescopic rod; 14. a support block; 15. a movable block; 1501. a mating hole; 16. a synchronizer.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

Example (b):

as shown in figures 1 and 2, the utility model provides a biax circular vibrating screen, including frame 2, supporting leg 1, swing joint between frame 2 and the supporting leg 1, its bottom outer wall bilateral symmetry is fixed with two connecting blocks 10, fixedly connected with telescopic cylinder 12 on the lower surface of connecting block 10, the inside swing joint of telescopic cylinder 12 has telescopic link 13, telescopic link 13 collapsible length is less than its length itself, the welding has supporting shoe 14 on the top outer wall of supporting leg 1, the middle part of supporting shoe 14 runs through and is equipped with the circular port, the lower extreme of telescopic link 13 passes the circular port and extends to supporting leg 1 is inside, fixedly connected with movable block 15 on the bottom of telescopic link 13, movable block 15 is located the inside of supporting leg 1, just mating holes 1501 has been seted up with the corresponding department of movable block 15 on supporting leg 1, mating holes 1501 and movable block 15's shape, The movable block 15 is a sphere, the diameter of the sphere is larger than the width of the telescopic rod 13, a spring 11 is sleeved outside the telescopic rod 13, the upper end of the spring 11 is fixed on the connecting block 10, and the lower end of the spring 11 is fixed on the supporting block 14;

the device is at work, the screen box 3 is vibrated to screen, vibration is transmitted to the frame 2 through the screen box 3, the frame 2 is vibrated along with the vibration, the frame 2 exerts a force on the telescopic cylinder 12 and the spring 11 in the vibration process, the spring 11 is deformed by the force and is compressed or stretched, the telescopic cylinder 12 moves up and down, the telescopic rod 13 is contracted or stretched, in the process, most of vibration is absorbed by the deformation of the spring 11 and the movement of the telescopic cylinder 12, the vibration received by the supporting leg 1 is greatly reduced, meanwhile, as the movable block 15 is connected on the telescopic rod 13, the spherical movable block 15 rotates repeatedly in the spherical movable groove and cannot be separated, the telescopic rod 13 and the spring 11 can swing at any angle, namely, the movable vibration damping mechanism can absorb the vibration in any direction, and the vibration received by the supporting leg 1 is greatly reduced, the service life of the supporting leg 1 is prolonged.

As shown in fig. 1 and fig. 3, this embodiment further discloses that a screen box 3 is installed on an outer wall of one side of a frame 2, a synchronizer 16 is installed on an outer wall of one side of the screen box 3, two sides of the synchronizer 16 are respectively connected with two identical eccentric shafts 9, the two eccentric shafts 9 are arranged in parallel, the other end of each eccentric shaft 9 is sleeved with an identical transmission wheel 7, the transmission wheel 7 is connected with an output shaft of a driving motor 5 through a transmission belt 6, the driving motor 5 is installed on a fixed seat 4, and in addition, eccentric blocks 8 are further installed on the front end and the rear end of the two eccentric shafts 9;

the device is at the during operation, starts driving motor 5, and driving motor 5 drives drive wheel 7 through drive belt 6 and rotates, and drive wheel 7 drives eccentric shaft 9, and eccentric shaft 9 drives eccentric block 8, and eccentric shaft 9, eccentric block 8 and synchronizer 16 convert the kinetic energy that driving motor 5 brought into the orbit for the vibration of circle to give sieve case 3, make sieve case 3 sieve. The device is two main shaft structures, and the hold-in range synchronous revolution makes sieve case 3 can sieve through turning into the vibration with kinetic energy, and the amplitude is big frequency height, makes the work efficiency of device obtain the reinforcing.

As shown in FIG. 1, the embodiment also discloses that a cushion block is arranged on the outer wall of the bottom end of the supporting leg 1, and the cross section of the cushion block is larger than that of the supporting leg 1; through the cushion that sets up, the cushion is located supporting leg 1 below, and the cushion contacts with ground when the device is installed, has increased the area of contact between device and the ground, has improved the stability of device.

The above embodiment is only one of the preferred embodiments of the present invention, and all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention are consistent with the present invention and all the technical problems solved by the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a biax circular vibrating screen, includes frame (2), the mid-mounting of frame (2) has sieve case (3), its characterized in that, the bottom outer wall bilateral symmetry of frame (2) is provided with movable damping mechanism, and it is through this mechanism and two supporting legs (1) swing joint, movable damping mechanism includes

The connecting blocks (10) are fixed on two sides of the outer wall of the bottom end of the rack (2);

the telescopic cylinder (12), the telescopic cylinder (12) is fixedly connected with the lower surface of the connecting block (10);

the telescopic rod (13), the said telescopic rod (13) is connected to the inside of the said telescopic cylinder (12) movably;

the supporting block (14) is welded on the outer wall of the top end of the supporting leg (1), a circular hole is formed in the middle of the supporting block (14) in a penetrating mode, and the lower end of the telescopic rod (13) penetrates through the circular hole and extends towards the inside of the supporting leg (1);

the movable block (15) is connected with the bottom end of the telescopic rod (13) and is positioned inside the supporting leg (1), a matching hole (1501) is formed in the supporting leg (1) corresponding to the movable block (15), and the matching hole (1501) is matched with the movable block (15) in shape and size;

the spring (11) is sleeved outside the telescopic rod (13), the upper end of the spring (11) is fixed on the connecting block (10), and the lower end of the spring (11) is fixed on the supporting block (14).

2. A double-shaft circular vibrating screen according to claim 1, characterized in that a synchronizer (16) is installed on the outer wall of one side of the screen box (3), and two identical driving mechanisms are respectively connected to two sides of the synchronizer (16).

3. The double-shaft circular vibrating screen as claimed in claim 2, wherein the driving mechanism comprises a driving motor (5), the driving motor (5) is mounted on the fixed seat (4), a driving belt (6) is sleeved on an output end of the driving motor, the other end of the driving belt (6) is sleeved outside the driving wheel (7), an eccentric shaft (9) is coaxially arranged in the driving wheel (7), the other end of the eccentric shaft (9) is in bearing connection with the synchronizer (16), and an eccentric block (8) is sleeved on each of the front end and the rear end of the eccentric shaft.

4. A double-shaft circular vibrating screen according to claim 1, characterized in that the retractable length of the retractable rods (13) is less than its own length.

5. A biaxial circular vibrating screen according to claim 1, characterized in that the outer wall of the bottom end of the supporting leg (1) is provided with a pad block, the cross section of which is larger than that of the supporting leg (1).

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