CN213943873U

CN213943873U - Double-excitation type vibrating screen

Info

Publication number: CN213943873U
Application number: CN202022701299.7U
Authority: CN
Inventors: 匡贤荣
Original assignee: Hubei Songzi Songchuan Mining Machinery Co ltd
Current assignee: Hubei Songzi Songchuan Mining Machinery Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-08-13
Anticipated expiration: 2030-11-20

Abstract

The utility model provides a double-excitation type vibrating screen, which belongs to the technical field of vibrating screens, and comprises a screen box, two groups of power output mechanisms are arranged at the front end of the screen box, two layers of screen mounting layers are arranged in the screen box, each layer of screen mounting layer comprises a baffle plate, a screen clamping groove, a fixed threaded hole and a supporting screen plate, the baffle plate is fixed on the inner wall of the screen box, the screen clamping groove is arranged at the upper end of the baffle plate, the fixed threaded holes are four, the four fixed threaded holes are respectively arranged at the four corners of the screen clamping groove, the supporting screen plate is fixed on the inner wall of the screen clamping groove, a supporting mechanism is arranged below the screen box, the whole vibrating screen has reasonable and ingenious structure, the screen in the screen box can be supported by the arrangement of the two layers of screen mounting layers, the screening efficiency is not influenced, the problem that a plurality of layers of screen meshes in the screen box are easy to damage and frequent replacement is effectively solved, the sieve material is got into the sieve case and is fallen into to the screen cloth on and not support completely, leads to the very easily damaged scheduling problem in screen cloth middle part.

Description

Double-excitation type vibrating screen

Technical Field

The utility model belongs to the technical field of the shale shaker, concretely relates to two excitation formula shale shakers.

Background

The vibrating screen operates by utilizing reciprocating rotary type vibration generated by vibrator excitation. The upper rotary heavy hammer of the vibrator makes the screen surface generate plane rotary vibration, the lower rotary heavy hammer makes the screen surface generate conical surface rotary vibration, and the combined effect makes the screen surface generate re-rotary vibration. The vibration locus is a complex space curve. The curve is projected as a circle in the horizontal plane and as an ellipse in the vertical plane. The amplitude can be changed by adjusting the exciting force of the upper and lower rotary weights. And the curve shape of the motion trail of the screen surface can be changed and the motion trail of the materials on the screen surface can be changed by adjusting the space phase angle of the upper and lower heavy hammers.

In the prior art, a double-excitation type vibrating screen is adopted, the principle is that two motors drag eccentric blocks on vibration exciters to rotate reversely through transmission shafts, and the double-shaft self-synchronizing elliptical (linear) vibrating screen realizes self-synchronization without any forced synchronizing device, so that a complex synchronizing device is omitted, the structure is very simple, and the operation is very simple and convenient. The parts are few, the fault point is few, the maintenance volume is few, and the use cost is low.

However, in the prior art, in the daily use process of the double-excitation type vibrating screen, multiple layers of screen nets in a screen box are often damaged easily and are replaced frequently, and the middle of each screen net is easy to damage and difficult to replace due to the fact that screen materials are not supported completely when entering the screen box and falling onto the screen nets, so that the double-excitation type vibrating screen is designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two excitation formula shale shakers aims at solving among the prior art to two excitation formula shale shakers in daily use, often is the extremely fragile of multilayer screen cloth of sieve incasement, changes frequently, mainly because the sieve material gets into the sieve case and falls into to the screen cloth on not supporting completely, leads to the screen cloth middle part to be very easily damaged, and changes difficult scheduling problem.

In order to achieve the above object, the utility model provides a following technical scheme:

a double-excitation type vibrating screen comprises a screen box, two groups of power output mechanisms are arranged at the front end of the screen box, two screen mounting layers are arranged in the screen box, each screen mounting layer comprises a partition plate, screen clamping grooves, fixing threaded holes and a supporting screen plate, the partition plate is fixed on the inner wall of the screen box, the screen clamping grooves are formed in the upper end of the partition plate, the number of the fixing threaded holes is four, the four fixing threaded holes are formed in the four corners of the screen clamping grooves respectively, the supporting screen plate is fixed on the inner wall of the screen clamping grooves, a supporting mechanism is arranged below the screen box and comprises a first inclined base plate, a second inclined base plate, a spring and a base, the number of the first inclined base plate, the number of the second inclined base plate and the base are two, the first inclined base plate and the two second inclined base plates are fixed at the bottom of the screen box, two the base is connected with the first oblique backing plate and the second oblique backing plate that are located both sides around through a plurality of springs respectively, be provided with upper cover mechanism in the sieve case.

As an optimization the utility model relates to a every group power take off mechanism includes driving motor, supporting legs, universal joint, pivot, eccentric wheel and bearing frame, driving motor passes through the supporting legs fixedly, the bearing frame is provided with two, the pivot is rotated in the front and back inner wall of sieve case through two bearing frames, and the pivot runs through the preceding inner wall of sieve case to extend forward, universal joint's top end is connected with driving motor's output and the front end of pivot respectively, the eccentric wheel is fixed in the circumferential surface of pivot.

As an optimization of the utility model, the joint has a plurality of evenly distributed's balancing weight on the eccentric wheel.

As an optimization of the utility model, every group the lower extreme of supporting legs is fixed with the bottom plate among the power take-off mechanism, the mounting hole has all been seted up to the upper end four corners department of bottom plate.

As an optimization the utility model relates to a every group upper cover mechanism includes T-slot, sliding closure, T-shaped piece, pan feeding mouth, expansion passageway and handle, T-slot and T-shaped piece all are provided with two, two the T-slot is seted up respectively in two parts around the right-hand member of sieve case, the sliding closure is pegged graft in two T-shaped inslots through two T-shaped piece activities, the upper end left part of sliding closure is seted up to the pan feeding mouth, the expansion passageway is fixed in the upper end of pan feeding mouth, the handle is fixed in the upper end right part of sliding closure.

As an optimization of the utility model, two be provided with friction rubber between T-shaped groove and two T-shaped blocks.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the scheme, the whole vibrating screen has reasonable structure and ingenious conception, the screen cloth in the screen box can be supported by the arrangement of the two screen cloth mounting layers, and does not affect the efficiency of screening materials, effectively solves the problems that the multilayer screen cloth in the screen box is easy to damage and frequently replaced, the screen materials are not supported on the screen cloth when entering the screen box, the middle part of the screen cloth is easy to damage and the like, the edge of the screen is supported and installed in a screen clamping groove in the screen installation layer and is fixed by bolts through fixing threaded holes at four corners, when the sieve material, the support point that sets up to the screen cloth and provide of support otter board lets the sieve material can not get into in a point repetition, leads to the screen cloth damaged, influences the sieve material treatment, improves the practical life of screen cloth, and the setting of upper cover mechanism also can improve the convenient degree of changing the screen cloth, also can effectively prevent to jump the material simultaneously and cause the injury to the operator.

2. In the scheme, the two groups of power output mechanisms are arranged to improve the power of the whole vibrating screen, the rotation of the eccentric wheel is driven by the rotation of the driving motor to drive the whole screen box to vibrate and screen materials on the supporting mechanism, the arrangement of the universal coupling can also effectively prevent the broken shaft of the output end of the driving motor connected with the rotating shaft caused by the vibration of the screen box, the supporting legs in the power output mechanism on the left side are higher than the supporting legs in the power output mechanism on the right side, the arrangement of the balancing weight can also change the vibration frequency of the whole device by changing the weight of the balancing weight, the practicability is strong, the arrangement of a plurality of mounting holes at the four corners of the bottom plate and the bottom plate can facilitate the installation and the fixation of the whole power output mechanism, when the screen mesh needs to be replaced, the handle is pulled to drive the sliding cover to slide out through two T-shaped grooves on the inner wall of the screen box, the material loading is convenient, when needing to use the device to sieve the material, can install the sliding closure, prevents the waste of pan feeding and jump the material and injure the people, and the setting up of pan feeding mouth can improve the efficiency of pan feeding, is provided with friction rubber between two T-shaped grooves and two T-shaped blocks and can prevents that the sieve case from shaking whole upper cover mechanism away when vibrations, lets the sliding closure more firm in the T-shaped groove connection through two T-shaped blocks.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a first perspective view of the present invention;

fig. 3 is a second perspective view of the present invention.

In the figure: 1-a sieve box; 2-screen mounting layer; 21-a separator; 22-screen clamping groove; 23-fixing the threaded hole; 24-supporting the mesh plate; 3-a cover mounting mechanism; 31-a T-shaped slot; 32-a slide cover; 33-T-shaped blocks; 34-a feeding port; 35-expanding the channel; 36-a handle; 4-a power take-off mechanism; 41-driving motor; 42-supporting feet; 43-a base plate; 44-mounting holes; 45-universal coupling; 46-a rotating shaft; 47-eccentric wheel; 48-a counterweight block; 49-bearing seats; 5-a first inclined base plate; 6-a second inclined base plate; 7-a spring; 8-base.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 and 2, the present invention provides the following technical solutions: a double-excitation type vibrating screen comprises a screen box 1, two groups of power output mechanisms 4 are arranged at the front end of the screen box 1, two screen mounting layers 2 are arranged in the screen box 1, each screen mounting layer 2 comprises a partition plate 21, four screen clamping grooves 22, four fixing threaded holes 23 and a supporting screen plate 24, the partition plate 21 is fixed on the inner wall of the screen box 1, the screen clamping grooves 22 are arranged at the upper end of the partition plate 21, the four fixing threaded holes 23 are arranged, the four fixing threaded holes 23 are respectively arranged at the four corners of the screen clamping grooves 22, the supporting screen plate 24 is fixed on the inner wall of the screen clamping grooves 22, a supporting mechanism is arranged below the screen box 1 and comprises a first inclined base plate 5, a second inclined base plate 6, a plurality of springs 7 and a base 8, the first inclined base plate 5, the second inclined base plate 6 and the base 8 are respectively provided with two, the springs 7 are provided, the two first inclined base plates 5 and the two second inclined base plates 6 are both fixed at the bottom of the screen box 1, two bases 8 are respectively connected with a first inclined base plate 5 and a second inclined base plate 6 which are positioned at the front side and the rear side through a plurality of springs 7, and an upper cover mechanism 3 is arranged in the screen box 1.

In the specific embodiment of the utility model, the whole vibrating screen has reasonable structure and ingenious conception, the screen cloth in the screen box 1 can be supported by the arrangement of the two screen cloth mounting layers 2, and does not affect the efficiency of screening materials, effectively solves the problems that the multilayer screen cloth in the screen box is easy to damage and frequently replaced, the screen materials are not supported on the screen cloth when entering the screen box, the middle part of the screen cloth is easy to damage and the like, the edge of the screen is supported and installed in a screen clamping groove 22 in the screen installation layer 2, and is fixed by bolts through fixing threaded holes 23 at four corners, when the sieve material, the support point that sets up to the screen cloth and provide of support otter board 24 lets the sieve material can not get into in a point repetition, leads to the screen cloth damaged, influences the sieve material treatment, improves the practical life of screen cloth, and the setting of upper cover mechanism 3 also can improve the convenient degree of changing the screen cloth, also can effectively prevent to jump the material simultaneously and cause the injury to the operator.

Specifically, as shown in fig. 1 and fig. 2, each group of power output mechanisms 4 includes a driving motor 41, supporting legs 42, a universal coupling 45, two rotating shafts 46, two eccentric wheels 47 and two bearing seats 49, the driving motor 41 is fixed by the supporting legs 42, the rotating shafts 46 rotate on the front and rear inner walls of the screen box 1 through the two bearing seats 49, the rotating shafts 46 penetrate through the front inner wall of the screen box 1 and extend forward, the starting ends and the end ends of the universal coupling 45 are respectively connected with the output end of the driving motor 41 and the front end of the rotating shaft 46, and the eccentric wheels 47 are fixed on the circumferential surface of the rotating shafts 46.

In this embodiment: two sets of power take off mechanism 4 set up to whole shale shaker and improved power, thereby it carries out the reciprocating sieve material to drive whole sieve case 1 on supporting mechanism to drive the rotation of eccentric wheel 47 through driving motor 41's rotation, universal joint 45's setting also can effectively prevent to sieve 1 vibrations of case and lead to the disconnected axle that driving motor 41's output and pivot 46 are connected, the supporting legs 42 that is arranged in left power take off mechanism 4 will be higher than the supporting legs 42 that is arranged in the power take off mechanism 4 on right side, driving motor 41 and external power source electric connection, and driving motor 41 is prior art in universal joint 45, do not specifically introduce to its inner structure here.

Specifically, as shown in fig. 1, a plurality of evenly distributed clump weights 48 are fastened to the eccentric wheel 47.

In this embodiment: the arrangement of the balancing weight 48 can also change the vibration frequency of the whole device by changing the weight of the balancing weight 48, and the practicability is strong.

Specifically, referring to fig. 1 and fig. 2, a bottom plate 43 is fixed to the lower end of each supporting leg 42 of each group of power output mechanisms 4, and four corners of the upper end of the bottom plate 43 are provided with mounting holes 44.

In this embodiment: the base plate 43 and the plurality of mounting holes 44 at the four corners of the base plate 43 can facilitate mounting and fixing of the entire power output mechanism 4.

Specifically please refer to fig. 1 and fig. 3, each set of upper cover mechanism 3 includes two T-shaped grooves 31, two sliding covers 32, two T-shaped blocks 33, a material inlet 34, an expansion channel 35 and a handle 36, the two T-shaped grooves 31 and the two T-shaped blocks 33 are respectively disposed at the front and rear parts of the right end of the screen box 1, the sliding covers 32 are movably inserted into the two T-shaped grooves 31 through the two T-shaped blocks 33, the material inlet 34 is disposed at the left part of the upper end of the sliding covers 32, the expansion channel 35 is fixed at the upper end of the material inlet 34, and the handle 36 is fixed at the right part of the upper end of the sliding covers 32.

In this embodiment: can be when needing to change the screen cloth in upper cover mechanism 3, pulling handle 36 drives sliding closure 32 through two T-shaped piece 33 two T-shaped groove 31 roll-offs on sieve case 1 inner wall, and it is convenient to feed, when needing the use device to carry out the sieve material, can install sliding closure 32, prevents the waste of pan feeding and jumps the material and injures the people, and the efficiency of pan feeding can be improved in the setting of pan feeding mouth 34.

Specifically, friction rubber is provided between the two T-shaped grooves 31 and the two T-shaped blocks 33.

In this embodiment: the friction rubber arranged between the two T-shaped grooves 31 and the two T-shaped blocks 33 can prevent the whole upper cover mechanism 3 from vibrating when the screen box 1 vibrates, and the sliding cover 32 is connected with the T-shaped grooves 31 more stably through the two T-shaped blocks 33.

The utility model discloses a theory of operation and use flow: through supporting the border of screen cloth and installing to screen cloth draw-in groove 22 in screen cloth installation layer 2, fixed screw hole 23 through four corners department is with bolted fixation, when the sieve material, support the strong point that sets up to the screen cloth that sets up of otter board 24, let the sieve material can not be at a point repeated entering, lead to the screen cloth damaged, influence the sieve material treatment, improve the practical life of screen cloth, the convenience of changing the screen cloth also can be improved in setting up of upper cover mechanism 3, also can effectively prevent to jump the material and cause the injury to the operator simultaneously, setting up of two sets of power take off mechanism 4 has improved power for whole shale shaker, thereby it shakes the sieve material to drive whole sieve case 1 on supporting mechanism to drive the rotation of eccentric wheel 47 through the rotation of driving motor 41, universal coupling 45's setting also can effectively prevent sieve case 1 vibrations and lead to the output of driving motor 41 and the disconnected axle that pivot 46 is connected, supporting legs 42 that is arranged in left power take off mechanism 4 will be higher than the power take off mechanism 4 that is arranged in right side The support feet 42 and the weight of the balancing weight 48 can be changed to change the vibration frequency of the whole device, the device is strong in practicability, the installation and fixation of the whole power output mechanism 4 can be facilitated by the arrangement of the bottom plate 43 and the plurality of installation holes 44 at the four corners of the bottom plate 43, when a screen is required to be replaced in the upper cover mechanism 3, the handle 36 is pulled to drive the sliding cover 32 to slide out through the two T-shaped grooves 31 on the inner wall of the screen box 1 through the two T-shaped blocks 33, the feeding is convenient, when the device is required to be used for screening materials, the sliding cover 32 can be installed to prevent the waste of feeding and people injury caused by material jumping, the arrangement of the feeding port 34 can improve the feeding efficiency, the friction rubber is arranged between the two T-shaped grooves 31 and the two T-shaped blocks 33 to prevent the screen box 1 from vibrating the whole upper cover mechanism 3 during vibration, and ensure that the sliding cover 32 is connected with the T-shaped grooves 31 through the two T-shaped blocks 33 more firmly, whole shale shaker structure sets up rationally, conceives ingeniously, can let the screen cloth of sieve incasement 1 have supported through the setting of two-layer screen cloth installation layer 2 to do not influence sieve material efficiency, effectively solved the extremely fragile of multilayer screen cloth of sieve incasement, it is frequent to change, and the sieve material gets into the sieve case and falls into to the screen cloth on not supporting completely, leads to the very easy damaged scheduling problem in screen cloth middle part.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a two excitation formula shale shakers which characterized in that: comprises a screen box (1), two groups of power output mechanisms (4) are arranged at the front end of the screen box (1), two layers of screen mounting layers (2) are arranged in the screen box (1), each layer of screen mounting layer (2) comprises a partition plate (21), screen clamping grooves (22), fixed threaded holes (23) and a supporting screen plate (24), the partition plates (21) are fixed on the inner wall of the screen box (1), the screen clamping grooves (22) are arranged at the upper end of the partition plate (21), the fixed threaded holes (23) are four, the four fixed threaded holes (23) are respectively arranged at the four corners of the screen clamping grooves (22), the supporting screen plate (24) is fixed on the inner wall of the screen clamping grooves (22), a supporting mechanism is arranged below the screen box (1), and the supporting mechanism comprises a first inclined base plate (5), a second inclined base plate (6), a spring (7) and a base (8), first oblique backing plate (5), second oblique backing plate (6) and base (8) all are provided with two, spring (7) are provided with a plurality ofly, two first oblique backing plate (5) and two second oblique backing plates (6) all are fixed in the bottom of sieve case (1), two base (8) are connected with first oblique backing plate (5) and second oblique backing plate (6) that are located both sides around with through a plurality of springs (7) respectively, be provided with upper cover mechanism (3) in sieve case (1).

2. The dual excitation shaker as in claim 1, wherein: every group power take off mechanism (4) include driving motor (41), supporting legs (42), universal joint (45), pivot (46), eccentric wheel (47) and bearing frame (49), driving motor (41) are fixed through supporting legs (42), bearing frame (49) are provided with two, pivot (46) rotate in the front and back inner wall of sieve case (1) through two bearing frames (49), and pivot (46) run through the preceding inner wall of sieve case (1) to extend forward, the top end of universal joint (45) is connected with the output of driving motor (41) and the front end of pivot (46) respectively, eccentric wheel (47) are fixed in the circumferential surface of pivot (46).

3. The dual excitation shaker as in claim 2, wherein: a plurality of evenly distributed balancing weights (48) are clamped on the eccentric wheel (47).

4. The dual excitation shaker as in claim 3, wherein: the lower end of each supporting leg (42) in each group of power output mechanism (4) is fixed with a bottom plate (43), and four corners of the upper end of each bottom plate (43) are provided with mounting holes (44).

5. The dual excitation shaker as in claim 4, wherein: every group upper cover mechanism (3) include T-shaped groove (31), sliding closure (32), T-shaped piece (33), pan feeding mouth (34), expansion passageway (35) and handle (36), T-shaped groove (31) and T-shaped piece (33) all are provided with two, two around the right-hand member of sieve case (1) is seted up respectively in T-shaped groove (31), sliding closure (32) are pegged graft in two T-shaped grooves (31) through two T-shaped piece (33) activities, the upper end left part of sliding closure (32) is seted up in pan feeding mouth (34), expansion passageway (35) are fixed in the upper end of pan feeding mouth (34), handle (36) are fixed in the upper end right part of sliding closure (32).

6. The dual excitation shaker as in claim 5, wherein: friction rubber is arranged between the two T-shaped grooves (31) and the two T-shaped blocks (33).