CN117102018A - Vibrating motor mechanism and grain vibration screening machine - Google Patents

Abstract

The application discloses a vibrating motor mechanism and a grain vibrating screening machine. The vibrating motor mechanism includes: the vibration motors are arranged at intervals; and the connecting assembly is fixedly connected with the plurality of vibration motors, so that the plurality of vibration motors connected with each other form a whole. The coupling assembly includes: a plurality of rigid connection handles which are respectively and fixedly arranged on the corresponding vibration motors; and the connecting end of the connecting rod is fixedly connected with the corresponding connecting handle. When the grain vibration screening machine is started, the connecting component can force the vibration amplitudes of the vibration motors to be consistent, so that the bending force born by the machine frame is greatly reduced, and the service lives of the machine frame and the grain vibration screening machine are prolonged.

Description

Vibrating motor mechanism and grain vibration screening machine

Technical Field

The application relates to the field of grain vibration screening machinery, in particular to a vibration motor mechanism. The application also relates to grain vibration screening machinery using the vibration motor mechanism.

Background

In the processing of grains such as cereals, it is often necessary to screen using a vibratory screening apparatus. Vibratory screening apparatus generally includes a vibratory motor, a frame, and a screening assembly. The vibrating motor is arranged on the frame, and the frame is connected with the screening component through the transmission device. Thus, when the grain screening machine works, the motor drives the frame to vibrate, and then the frame transmits vibration to the screening assembly through the transmission device so that the screening assembly vibrates, and grain vibration screening is achieved.

In the prior art, a plurality of vibration motors are generally fixedly mounted on a frame independently. This causes the problem that the vibration amplitudes of these vibration motors are not exactly uniform just at the start-up of the screening device, which can create bending forces in the frame, thus reducing the service life of the frame.

Disclosure of Invention

In view of the foregoing technical problem, a first aspect of the present application proposes a vibration motor mechanism. The vibrating motor mechanism includes: the vibration motors are arranged at intervals; and the connecting assembly is fixedly connected with the plurality of vibration motors, so that the plurality of vibration motors connected with each other form a whole. The coupling assembly includes: a plurality of rigid connection handles which are respectively and fixedly arranged on the corresponding vibration motors; and the connecting end of the connecting rod is fixedly connected with the corresponding connecting handle.

In one embodiment, the connecting rod comprises a hollow tube and a fixed block fixedly arranged at the end part of the hollow tube, and the connecting handle is fixedly connected with the fixed block.

In one embodiment, the first end of the securing block is inserted into the hollow tube and the second end of the securing block is outside the hollow tube, forming a stop step between the first end and the second end.

In one embodiment, the fixed block is provided with a threaded hole along the axial direction, and the connecting handle is provided with a through hole corresponding to the threaded hole; the connection assembly further includes a connection bolt extending through the through hole and connected to the threaded hole.

In one embodiment, the connection handle includes two spaced apart extension arms and a connection portion connected between the two extension arms; the two extension arms are fixedly connected with the vibration motor; the through hole is formed on the connecting part; the connecting bolt extends from the inner side of the connecting portion, passes through the through hole and is connected with the threaded hole.

In one embodiment, the through hole is a light hole.

In one embodiment, a counterbore is formed around the through-hole on the inner side of the connection portion; a gasket is arranged in the counter bore, and a nut of the connecting bolt presses the gasket.

In one embodiment, the gasket comprises a first sub-gasket and a second sub-gasket superposed on the first sub-gasket, and the joint surfaces of the first sub-gasket and the second sub-gasket are provided with locking steps distributed along the circumferential direction so as to enable the first sub-gasket and the second sub-gasket to be mutually meshed together.

In one embodiment, the vibration motor comprises a motor body and two eccentric blocks, wherein the two eccentric blocks are respectively arranged at two ends of the motor body and are connected with the motor output shaft, and the connecting handle is connected with the motor body.

A second aspect of the present application provides a grain vibration screening machine. The grain vibration screening machine comprises: the device comprises a frame, a screening component, a vibrating motor mechanism, a screening component and a control unit, wherein the screening component is arranged on the frame, and the vibrating motor mechanism is arranged on the frame and deviates from the screening component according to the vibrating motor mechanism, and the number of the vibrating motors is two; the two vibration motors are vertically arranged and the rotation directions are opposite.

Compared with the prior art, the application has the following beneficial effects: the connecting component connects the two vibrating motors into a whole. Thus, when the grain vibration screening machine using the vibration motor mechanism is started, the vibration amplitude of the vibration motors is forced to be consistent by the connecting component, so that the bending force born by the frame is greatly reduced, and the service lives of the frame and the grain vibration screening machine are prolonged.

Drawings

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

fig. 1 is a schematic view of a grain vibration screening machine according to an embodiment of the present application.

Fig. 2 schematically shows a vibrating motor mechanism.

Fig. 3 schematically shows a vibration motor.

Fig. 4 schematically shows a connecting rod.

Fig. 5 schematically shows a fixed block.

Fig. 6 schematically shows a perspective view of the connecting handle.

Fig. 7 schematically shows a gasket.

Fig. 8 schematically shows the locking step of the gasket.

Fig. 9 is a cross-sectional view of the attachment handle.

Fig. 10 is an enlarged view of a portion C in fig. 2.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be understood that, in the present application, the directional term "inside" refers to a direction toward the vibration motor 310, and "outside" refers to a direction away from the vibration motor 310.

Fig. 1 schematically shows a grain vibration screening machine 1 according to the application. The grain vibration screening machine 1 includes: a frame 10, a screening assembly 20 and a vibrating motor mechanism 30. The screening assembly 20 is mounted on the frame 10. The vibration motor mechanism 30 is installed on the frame 10 and deviates from the screening assembly 20 to drive the frame 10 to vibrate and further drive the screening assembly 20 to vibrate, so that vibration screening of grains is realized. The screen assembly 20 may be, for example, a screen, as is well known to those skilled in the art and will not be described in detail herein.

The vibration motor mechanism 30 is described below.

As shown in fig. 2, the vibration motor mechanism 30 includes two vibration motors 310, and the two vibration motors 310 are disposed at a distance. The vibration motor mechanism 30 further includes a connection assembly 320. The two vibration motors 310 are fixedly connected with the connecting assembly 320, so that the two vibration motors 310 form a whole.

Thus, when the grain vibration screening machine 1 is started, the connecting assembly 320 forces the amplitudes of the two vibration motors 310 to be consistent, and the bending force acting on the frame 10 is greatly reduced, which helps to prolong the service lives of the frame 10 and the grain vibration screening machine 1. In addition, during the operation of the grain vibration screening machine 1, the connection assembly 320 keeps the two vibration motors 310 as one body, which helps to prevent one of the vibration motors 310 from loosening, shifting, etc., thereby reducing the number of times of adjusting the vibration motors 310 and reducing the operation strength of an operator.

It should be understood that the grain vibration screening machine 1 may also include more vibration motors 310, in which case the connection assembly 320 connects the vibration motors 310 as a unit.

Alternatively, the two vibration motors 310 are arranged to rotate in opposite directions. For example, one of the vibration motors is configured to rotate clockwise and the other vibration motor is configured to rotate counterclockwise. Thus, during operation of the grain vibration screening machine 1, the movement of the two vibration motors 310 in the direction of the line connecting the two vibration motors 310 (e.g., the direction a in fig. 1) is offset from each other, and the movement in the direction perpendicular to the line connecting the two vibration motors 310 (e.g., the direction B in fig. 1) is retained and becomes the driving force for driving the movement of the screening assembly 20, so that the screening assembly 20 reciprocates in the direction B in fig. 1, thereby achieving screening.

Fig. 3 schematically shows a vibration motor 310. As shown in fig. 3, the vibration motor 310 includes a motor main body 501 and two eccentric blocks (not shown) provided at both ends 502 of the motor main body 501 and connected to a motor output shaft, respectively. When assembled to the grain vibration screening machine 1, both vibration motors 310 are vertically disposed, that is, the output shafts of the vibration motors are in the vertical direction. The two eccentric blocks are respectively positioned at the top end and the bottom end of the vibration motor. In this way, the eccentric block rotates under the drive of the motor output shaft, so that the vibration motor 310 shakes. As described above, by arranging the two vibration motors 310 to rotate in opposite directions and connecting the two vibration motors 310 as a unit using the connection assembly 320, the two vibration motor mechanisms 30 can well drive the sieving assembly 20 to reciprocate.

Optionally, as shown in fig. 2, the connection assembly 320 includes: two rigid connecting handles 321 and a rigid connecting rod 322. The two connection handles 321 are fixedly installed on the corresponding vibration motors 310, respectively. The connecting ends of the connecting rods 322 are fixedly connected with the corresponding connecting handles 321. In this way, the connecting rod 322 with proper length can be selected according to the distance between the vibration motors 310, thereby facilitating the manufacture of the vibration motor mechanism 30 and the grain vibration screening machine 1.

Specifically, as shown in fig. 3, the connection handle 321 is connected to the motor main body 501. Thus, when the grain vibration screening machine 1 is started, the connecting assembly 320 pulls or pushes the vibration motor 310 as a whole, so that the vibration motor 310 is prevented from shaking excessively relative to the frame 10, and the grain vibration screening machine 1 is protected.

Fig. 4 shows a specific structure of the link 322. As shown in fig. 4, the link 322 includes a hollow tube 323 and a fixing block 324 fixedly provided at an end of the hollow tube 323. The connecting handle 321 is fixedly connected with the fixing block 324 (as shown in fig. 10). In this structure, the hollow pipe 323 has a light weight, and the load of the vibration motor 310 is reduced, so that the grain vibration screening machine 1 is more energy-saving. In addition, optionally, the fixing block 324 is welded at the end of the hollow pipe 323 (as shown in fig. 10) to avoid the fixing block 324 from being loosened from the hollow pipe 323 during use of the grain vibration screening machine 1.

It should be noted that, when there are two vibration motors 310, the hollow tube 323 may be a straight tube, and fixing blocks 324 are provided at both ends thereof to be connected to the corresponding vibration motors 310. When the vibration motor 310 is plural, the hollow tube 323 may be configured to have plural branches (for example, may be dendritic), and a fixing block 324 is provided at each of the branches to be connected with the corresponding vibration motor 310.

Fig. 5 schematically shows the structure of the fixing block 324. As shown in fig. 5, a first end 325 of the fixed block 324 is inserted into the hollow tube 323 and a second end 326 of the fixed block 324 is outside the hollow tube 323. The first end 325 is smaller in size than the second end 326, thereby forming a stop step 327 between the first end 325 and the second end 326. With this structure, the stopper steps 327 facilitate the mounting and positioning of the fixing block 324 on the hollow pipe 323, simplifying the assembly of the fixing block 324. The fixing block 324 has an outer shape similar to a stepped shaft as a whole, so that the fixing block 324 can be easily manufactured by a machine tool.

Optionally, a threaded hole 328 is formed in the fixing block 324 along the axial direction thereof, and a through hole 329 corresponding to the threaded hole 328 is formed in the connection handle 321. The connection assembly 320 further includes a connection bolt 330, the connection bolt 330 extending through the through hole 329 and being connected to the threaded hole 328. It should be noted that in this structure, the nuts of the connection bolts 330 do not pass through the through holes 329 (as shown in fig. 10), so that the two vibration motors 310 can be easily connected as a unit or the two vibration motors 310 can be separated by mounting or dismounting the connection bolts 330, which is very convenient to operate.

Optionally, the through hole 329 is a light hole to facilitate the passage of the connecting bolt 330 therethrough and threaded with the threaded hole 328.

Alternatively, in other embodiments, solid rods may be used instead of the hollow tube 323 described above. In this case, the fixing block 324 is not required to be provided, and screw holes may be directly formed at both ends of the solid bar.

Fig. 6 schematically shows the structure of the connection handle 321. As shown in fig. 6, the connecting handle 321 includes two spaced extension arms 340 and a connecting portion 341 connected between the two extension arms 340. Both extension arms 340 are fixedly connected (e.g., welded together) to the vibration motor 310. A through hole 329 is formed on the connection portion 341, and a connection bolt 330 extends from the inside of the connection portion 341 through the through hole 329 and is fitted into the screw hole 328. The connecting handle 321 is formed in a generally "U" shape as a whole. In this way, an operation space is formed between the connection handle 321 and the vibration motor 310, facilitating the manual installation or removal of the connection bolt 330.

The extension arm 340 and the connection portion 341 are smoothly transited through the rounded corners, so as to avoid the damage of the connection handle 321 caused by the stress concentration generated at the connection position of the extension arm 340 and the connection portion 341.

Alternatively, the connecting handle 321 may be integrally formed, such as by casting. The extension arm 340 and the connection portion 341 may also be formed separately and then welded together.

As shown in fig. 9 and 10, a counterbore 342 is formed around the through hole 329 on the inner side of the connection portion 341. Within counterbore 342 is mounted washer 40 and the nut of coupling bolt 330 compresses washer 40. The washer 40 keeps the connection bolt 330 tightly and stably coupled with the screw hole 328 of the fixing block 324, preventing the connection bolt 330 from being loosened due to vibration. In addition, the counterbore 342 is used to limit the washer 40 and prevent the washer 40 from being displaced by vibration, which would result in the coupling bolt 330 being loosened. The counterbore 342 may be circular or polygonal in shape, etc., so long as it is capable of receiving and retaining the gasket 40, and is not limited thereto.

Optionally, the nut of the connecting bolt 330 also enters the counterbore 342. Thus, counterbore 342 also acts as a stop for the nut, which also helps to prevent the connecting bolt 330 from loosening due to vibration.

As shown in fig. 7 and 8, the gasket 40 includes a first sub-gasket 401 and a second sub-gasket 402 stacked on the first sub-gasket 401. The engagement surfaces of the first sub-gasket 401 and the second sub-gasket 402 are each configured with locking steps 403 distributed in the circumferential direction so that the first sub-gasket 401 and the second sub-gasket 402 are engaged with each other. During operation of the vibration motor 310, the locking step on the first sub-gasket 401 and the locking step on the second sub-gasket 402 are tightly engaged with each other, which helps the gasket 40 maintain its shape and thus helps prevent the coupling bolt 330 from being released.

The vibration motor mechanism 30 assembly process is described below in conjunction with fig. 2.

In the first step, a connection handle 321 is welded to the vibration motor 310, and a fixing block 324 is fixedly installed to the hollow tube 323.

In a second step, threaded holes 328 on fixed block 324 are aligned with through holes 329 on attachment knob 321.

Step three, a gasket 40 is disposed within counterbore 342. The central aperture of the washer 40 is aligned with the through aperture 329.

Fourth, the coupling bolt 330 is extended from the inside of the coupling handle 321 through the through hole 329, and then fitted into the screw hole 328 by screwing, and the nut of the coupling bolt 330 is pressed against the washer 40.

Thereby completing the assembly of the vibration motor mechanism 30.

When the vibration motor 310 is detached, the hollow tube 323, together with the fixing block 324, can be separated from the vibration motor 310 only by removing the connecting bolt 330. The operation process is simple and convenient.

It should be understood that the above-described assembly process of the vibration motor mechanism 30 is not intended to limit the structure thereof. In addition, the steps in the assembly process of the vibration motor mechanism 30 are merely provided for convenience of description, and are not limited thereto, and those skilled in the art may adjust the steps or the assembly actions in the steps, which will not be repeated herein.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims (10)

1. A vibration motor mechanism, comprising:

a plurality of vibration motors (310), wherein the plurality of vibration motors (310) are arranged at intervals; and

a connection assembly (320), wherein the plurality of vibration motors (310) are fixedly connected with the connection assembly (320), so that the plurality of vibration motors (310) connected with each other form a whole;

wherein the connection assembly (320) comprises:

a plurality of rigid connection handles (321), wherein the plurality of connection handles (321) are respectively fixedly arranged on the corresponding vibration motors (310); and

and the connecting end of the connecting rod (322) is fixedly connected with the corresponding connecting handle (321).

2. The vibration motor mechanism according to claim 1, wherein the link (322) includes a hollow tube (323) and a fixing block (324) fixedly provided at an end of the hollow tube (323), and the connection handle (321) is fixedly connected with the fixing block (324).

3. The vibrating motor mechanism according to claim 2, wherein a first end (325) of the fixed block (324) is inserted into the hollow tube (323), a second end (326) of the fixed block (324) is located outside the hollow tube (323), and a limiting step (327) is formed between the first end (325) and the second end (326).

4. The vibration motor mechanism according to claim 2, wherein the fixed block (324) is configured with a screw hole (328) along an axial direction thereof, and a through hole (329) corresponding to the screw hole (328) is configured on the connection handle (321);

the connection assembly (320) further includes a connection bolt (330), the connection bolt (330) extending through the through-hole (329) and being connected to the threaded hole (328).

5. The vibrating motor mechanism according to claim 4, wherein the connection handle (321) comprises two spaced apart extension arms (340) and a connection (341) connected between the two extension arms (340); the two extension arms (340) are fixedly connected with the vibration motor (310); the through hole (329) is formed in the connection portion (341); the connecting bolt (330) extends from the inner side of the connecting portion (341) through the through hole (329) and is connected with the screw hole (328).

6. The vibrating motor mechanism according to claim 4 or 5, wherein the through hole (329) is a light hole.

7. The vibration motor mechanism according to claim 5, wherein a counterbore (342) is formed around the through hole (329) on an inner side surface of the connecting portion (341); a washer (40) is mounted in the counter bore (342), and a nut of the connecting bolt (330) presses the washer (40).

8. The vibration motor mechanism according to claim 7, wherein the washer (40) includes a first sub-washer (401) and a second sub-washer (402) superposed on the first sub-washer (401), and locking steps (403) distributed in a circumferential direction are configured on joint surfaces of both the first sub-washer (401) and the second sub-washer (402) so that the first sub-washer (401) and the second sub-washer (402) are engaged with each other.

9. The vibration motor mechanism according to claim 6, wherein the vibration motor (310) includes a motor main body (501) and two eccentric blocks, the two eccentric blocks are respectively provided at both ends (502) of the motor main body (501) and connected to a motor output shaft, and the connection handle (321) is connected to the motor main body (501).

10. A grain vibration screening machine, comprising:

a frame (10),

a screening assembly (20), the screening assembly (20) being mounted on the frame (10),

the vibration motor mechanism according to any one of claims 1 to 9, the vibration motor mechanism (30) being mounted on the frame (10) and offset from the screening assembly (20), the number of the vibration motors (310) being two, the two vibration motors (310) being vertically arranged and rotating in opposite directions.