Efficient energy-saving classifying screen equipment

Abstract

The invention belongs to the technical field of classifying screens, and particularly relates to efficient and energy-saving classifying screen equipment which comprises a rack, a screen body is arranged above the rack, the rack and the screen body are in transition connection through a plurality of buffer assemblies, a force guiding plate is fixedly installed at the bottom of the screen body, a vibration motor is fixedly installed on the force guiding plate, and the vibration motor is fixedly connected with the rack. A discharging port is formed in one side of the screen body, the buffering assembly comprises a first connecting plate fixedly connected with the rack and a second connecting plate fixedly connected with the screen body, a plurality of springs distributed in a circumferential array mode are installed between the first connecting plate and the second connecting plate, and the second connecting plate is vibrated by the screen body. In the vibrating process of the screen body, the positions of all the springs in the buffering assembly can be automatically changed, the springs are prevented from being subjected to vibrating external force in the single direction for a long time, and it is guaranteed that the vibrating direction of the screen body is not affected even if all the springs are used for a long time.

Description

Technical Field

[0001] The present invention relates to the technical field of grading screens, and in particular to an efficient and energy-saving grading screen device. Background Art

[0002] A vibrating grading screen is a machine that uses a vibrating screen surface to classify a mixture of different particle sizes according to particle size. The vibrating grading screen is small in size and has stable movement, and is widely used for the screening and grading of raw materials and finished products in various industries such as grain, food, chemical industry, sugar making, mining, and papermaking.

[0003] In the prior art, the sieve tray of a vibrating grading screen and the lower base frame are usually flexibly connected by a spiral spring. For example, the shock-absorbing spring in a vibrating separator that can quickly replace the sieve plate disclosed in the patent number CN201921637744.9. However, the vibration transmitted to the shock-absorbing spring is not fixed in direction. The shock-absorbing spring in the above application is usually a common spiral shape. After long-term operation, this type of spring will cause the vibration direction of the sieve tray to change, and other types of springs cannot buffer the vibration from various different directions. Therefore, an efficient and energy-saving grading screen device is proposed. Summary of the Invention

[0004] In order to solve the shortcomings existing in the prior art, the present invention proposes an efficient and energy-saving grading screen device.

[0005] To achieve the above object, the present invention adopts the following technical solution: An efficient and energy-saving grading screen device includes a frame, a sieve body is provided above the frame, the frame and the sieve body are transitionally connected through a plurality of buffer components, a guide plate is fixedly installed at the bottom of the sieve body, a vibration motor is fixedly installed on the guide plate, a discharge port is installed on one side of the sieve body, the buffer component includes a first connecting plate fixedly connected to the frame and a second connecting plate fixedly connected to the sieve body, and a plurality of springs arranged in a circumferential array are installed between the first connecting plate and the second connecting plate. When the second connecting plate receives the vibration transmitted from the sieve body, the plurality of springs will rotate around the common center and rotate around their own axes to change their positions.

[0006] Preferably, a support mechanism and a swing mechanism are provided between the first connecting plate and the second connecting plate. The support mechanism includes a prism barrel fixedly installed on the top of the first connecting plate, a prism is slidably installed in the prism barrel, the swing mechanism includes a ball head fixedly connected to the bottom of the second connecting plate, and a ball cage is rotatably sleeved on the ball head, and the bottom of the ball cage is fixedly connected to the top of the prism.

[0007] Preferably, a second rotating mechanism is provided at the bottom of the second connecting plate. The second rotating mechanism includes a second annular plate rotatably and embeddedly installed at the bottom of the second connecting plate. A plurality of second rotating shafts are rotatably installed on the second annular plate and are distributed in a circumferential array. Disk two is fixedly installed at the bottom end of each of the plurality of second rotating shafts.

[0008] Preferably, a first rotating mechanism is provided at the top of the first connecting plate. The first rotating mechanism includes a first annular plate rotatably and embeddedly installed at the top of the first connecting plate. A plurality of first rotating shafts are rotatably installed on the first annular plate and are distributed in a circumferential array. Disk one is fixedly installed at the top end of each of the plurality of first rotating shafts. The top and bottom ends of the plurality of springs are fixedly connected to the corresponding disk two and disk one respectively.

[0009] Preferably, the buffer assembly further includes a driving mechanism. The driving mechanism includes a plurality of planet gears fixedly sleeved on the plurality of first rotating shafts. The same internal gear ring and external gear ring are meshed with the plurality of planet gears. The internal gear ring and the external gear ring are coaxially arranged, and the internal gear ring is fixedly connected to the top of the first connecting plate. A cylinder rotatably installed at the top of the first connecting plate is fixedly sleeved inside the external gear ring.

[0010] Preferably, an end face gear ring is fixedly installed at the top of the cylinder. The driving mechanism further includes a first circular shaft and a second circular shaft rotatably installed on both sides of the prism barrel. The first circular shaft and the second circular shaft are coaxially arranged. A third gear and a fourth gear are respectively fixed on the first circular shaft and the second circular shaft. The third gear and the fourth gear are both meshed with the end face gear ring.

[0011] Preferably, a first gear and a second gear are respectively sleeved on the first circular shaft and the second circular shaft. A first rack and a second rack are respectively meshed with the first gear and the second gear. The first rack and the second rack are symmetrically distributed about the center. The top ends of the first rack and the second rack are fixedly installed with the same cross plate. The cross plate penetrates through the prism and is fixedly connected to the prism.

[0012] Preferably, a telescopic sleeve is fixedly connected between the first connecting plate and the second connecting plate. The plurality of springs are all located inside the telescopic sleeve. A plurality of air exchange holes are formed in the telescopic sleeve and are distributed in a circumferential array.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] During the vibration of the sieve body, the present invention can automatically change the positions of the springs in the buffer assembly, avoiding the springs being subjected to vibration external forces in a single direction for a long time, and ensuring that the vibration direction of the sieve body is not affected even after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an efficient energy-saving classification sieve device proposed by the present invention;

[0016] Figure 2 Schematic structural diagram of the sieve body, the force guiding plate and the vibration motor in an efficient energy-saving grading sieve device proposed by the present invention;

[0017] Figure 3 Schematic structural diagram of the buffer assembly in an efficient energy-saving grading sieve device proposed by the present invention;

[0018] Figure 4 Side section of the buffer assembly in an efficient energy-saving grading sieve device proposed by the present invention Figure 1 ;

[0019] Figure 5 Side section of the buffer assembly in an efficient energy-saving grading sieve device proposed by the present invention Figure 2 ;

[0020] Figure 6 Partial side section of the buffer assembly in an efficient energy-saving grading sieve device proposed by the present invention Figure 1 ;

[0021] Figure 7 Partial side section of the buffer assembly in an efficient energy-saving grading sieve device proposed by the present invention Figure 2 .

[0022] In the figure: 1, frame; 2, sieve body; 3, buffer assembly; 31, connecting plate one; 32, connecting plate two; 33, telescopic sleeve; 331, ventilation hole; 34, rotating mechanism one; 341, annular plate one; 342, rotating shaft one; 343, disc one; 35, rotating mechanism two; 351, annular plate two; 352, rotating shaft two; 353, disc two; 36, spring; 37, supporting mechanism; 371, prism barrel; 372, prism; 38, swinging mechanism; 381, ball cage; 382, ball head; 39, driving mechanism; 391, round shaft one; 392, round shaft two; 393, gear one; 394, gear two; 395, gear three; 396, gear four; 397, rack one; 398, rack two; 399, cross plate; 3910, end face gear ring; 3911, cylinder; 3912, external gear ring; 3913, planetary gear; 3914, internal gear ring; 4, force guiding plate; 5, vibration motor; 6, discharge port. Specific embodiments

[0023] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 7, the present invention provides a technical solution: an efficient energy-saving grading screen device, including a frame 1, a screen body 2 is provided above the frame 1, and the frame 1 and the screen body 2 are transitionally connected through a plurality of buffer components 3. A guiding plate 4 is fixedly installed at the bottom of the screen body 2, and a vibration motor 5 is fixedly installed on the guiding plate 4. An outlet 6 is installed on one side of the screen body 2. The buffer component 3 includes a first connecting plate 31 fixedly connected to the frame 1 and a second connecting plate 32 fixedly connected to the screen body 2. A plurality of springs 36 distributed in a circumferential array are installed between the first connecting plate 31 and the second connecting plate 32. When the second connecting plate 32 receives the vibration transmitted from the screen body 2, the plurality of springs 36 will rotate around the common center of the circle and rotate around their own axes to change their positions.

[0025] A supporting mechanism 37 and a swinging mechanism 38 are provided between the first connecting plate 31 and the second connecting plate 32. The supporting mechanism 37 includes a prism barrel 371 fixedly installed at the top of the first connecting plate 31, and a prism 372 is slidably installed in the prism barrel 371. The swinging mechanism 38 includes a ball head 382 fixedly connected to the bottom of the second connecting plate 32, and a ball cage 381 is rotatably sleeved on the ball head 382. The bottom of the ball cage 381 is fixedly connected to the top end of the prism 372.

[0026] A second rotating mechanism 35 is provided at the bottom of the second connecting plate 32. The second rotating mechanism 35 includes an annular plate two 351 rotatably installed in the bottom of the second connecting plate 32 in an embedded manner, and a plurality of rotating shafts two 352 distributed in a circumferential array are rotatably installed on the annular plate two 351. The bottom ends of the plurality of rotating shafts two 352 are all fixedly installed with discs two 353.

[0027] A first rotating mechanism 34 is provided at the top of the first connecting plate 31. The first rotating mechanism 34 includes an annular plate one 341 rotatably installed in the top of the first connecting plate 31 in an embedded manner, and a plurality of rotating shafts one 342 distributed in a circumferential array are rotatably installed on the annular plate one 341. The top ends of the plurality of rotating shafts one 342 are all fixedly installed with discs one 343. The top ends and bottom ends of the plurality of springs 36 are respectively fixedly connected to the corresponding discs two 353 and discs one 343.

[0028] The buffer component 3 further includes a driving mechanism 39. The driving mechanism 39 includes a plurality of planet gears 3913 fixedly sleeved on the plurality of rotating shafts one 342. The same internal gear ring 3914 and external gear ring 3912 are meshed with the plurality of planet gears 3913. The internal gear ring 3914 and the external gear ring 3912 are coaxially arranged, and the internal gear ring 3914 is fixedly connected to the top of the first connecting plate 31. The inner side of the external gear ring 3912 is fixedly sleeved with a cylinder 3911 rotatably installed on the top of the first connecting plate 31.

[0029] Furthermore, the external gear ring 3912 and the internal gear ring 3914 are located below the plurality of discs one 343.

[0030] A face gear ring 3910 is fixedly installed at the top of the cylinder 3911. The driving mechanism 39 further includes a first circular shaft 391 and a second circular shaft 392 rotatably installed on both sides of the prism barrel 371. The first circular shaft 391 and the second circular shaft 392 are coaxially arranged. A third gear 395 and a fourth gear 396 are respectively fixed on the first circular shaft 391 and the second circular shaft 392. Both the third gear 395 and the fourth gear 396 are meshed with the face gear ring 3910.

[0031] A first gear 393 and a second gear 394 are respectively sleeved on the first circular shaft 391 and the second circular shaft 392. A first rack 397 and a second rack 398 are respectively meshed and connected to the first gear 393 and the second gear 394. The first rack 397 and the second rack 398 are symmetrically distributed about the center. The tops of the first rack 397 and the second rack 398 are fixedly installed with the same cross plate 399. The cross plate 399 penetrates through the prism 372 and is fixedly connected to the prism 372.

[0032] Further, the cylinder 3911 is in damping rotational connection with the first connecting plate 31. In the free state, the cylinder 3911 will not rotate. Only by rotating the face gear ring 3910 can the cylinder 3911 be driven to rotate.

[0033] Further, both between the first gear 393 and the first circular shaft 391 and between the second circular shaft 392 and the second gear 394 are connected through one-way bearings, and the two one-way bearings are arranged in the same direction;

[0034] As Figure 6 shown, when the cross plate 399 drives the second rack 398 and the first rack 397 to move downward, under the action of the two one-way bearings, the second gear 394 will rotate idly and will not drive the second circular shaft 392 to rotate, while the first rack 397 will drive the first gear 393 and the first circular shaft 391 to rotate clockwise synchronously;

[0035] As Figure 6 shown, when the cross plate 399 drives the second rack 398 and the first rack 397 to move upward, under the action of the two one-way bearings, the first gear 393 will rotate idly and will not drive the first circular shaft 391 to rotate, while the second rack 398 will drive the second gear 394 and the second circular shaft 392 to rotate clockwise synchronously;

[0036] Due to the damping force between the cylinder 3911 and the first connecting plate 31, when the first gear 393 and the second gear 394 rotate idly, they will not drive the first circular shaft 391 and the second circular shaft 392 to rotate;

[0037] In summary, under the action of the two one-way bearings, it is ensured that during the process of the second connecting plate 32 driving the prism 372 to move up and down, the first circular shaft 391 and the second circular shaft 392 arranged coaxially always rotate in the same direction, and it is ensured that with the cooperation of other components of the driving mechanism 39, the multiple springs 36 always revolve in the same direction.

[0038] A telescopic sleeve 33 is fixedly connected between the first connecting plate 31 and the second connecting plate 32. A plurality of springs 36 are all located inside the telescopic sleeve 33. The telescopic sleeve 33 is provided with a plurality of air exchange holes 331 distributed in a circumferential array.

[0039] Furthermore, when the second connecting plate 32 receives the vibration transmitted by the sieve body 2, it will cause the distance between the second connecting plate 32 and the first connecting plate 31 to change. During this process, the telescopic sleeve 33 will be stretched or compressed. With the deformation of the telescopic sleeve 33, through the action of the plurality of air exchange holes 331, the air inside and outside the telescopic sleeve 33 is exchanged, so that the heat inside the telescopic sleeve 33 can be transferred out, reducing the influence of high temperature on the components in the telescopic sleeve 33.

[0040] In this embodiment: when screening materials, the materials are placed on the sieve body 2, and then the guide plate 4 is started. The guide plate 4 drives the sieve body 2 to vibrate. When the sieve body 2 vibrates, it will screen the materials and discharge the screened materials from the discharge port 6.

[0041] When the sieve body 2 transmits disordered vibration to the second connecting plate 32 on the lower buffer assembly 3, the second connecting plate 32 will follow the vibration and move up and down and rotate around the center of the constant velocity joint 381. During this process, the plurality of springs 36 will be compressed and stretched to different degrees, and the direction of compression / stretching will change synchronously with the direction of vibration, so that the springs 36 will also be twisted during the process of being compressed / stretched.

[0042] During the up and down movement of the second connecting plate 32, it will drive the prism 372 to move up and down through the swing mechanism 38. The up and down movement of the prism 372 will cause the end face gear ring 3910 to rotate. The end face gear ring 3910 will then drive the cylinder 3911 to rotate. The rotation of the cylinder 3911 will drive the plurality of planet gears 3913 to rotate. With the cooperation of the internal gear ring 3914, the plurality of planet gears 3913 will revolve around the prism barrel 371 and rotate on their own axes at the same time. During this process, the positions of the plurality of springs 36 will be gradually replaced in turn, avoiding a situation where a certain spring 36 is compressed and stretched to a greater extent than other springs 36 for a long time.

[0043] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An efficient and energy-saving grading screen device, comprising a frame (1), characterized in that: Above the described frame (1) is provided with a sieve body (2). The frame (1) and the sieve body (2) are transitionally connected through a plurality of buffer components (3). A guide force plate (4) is fixedly installed at the bottom of the sieve body (2), and a vibration motor (5) is fixedly installed on the guide force plate (4). An outlet (6) is installed on one side of the sieve body (2). The buffer component (3) includes a first connecting plate (31) fixedly connected to the frame (1) and a second connecting plate (32) fixedly connected to the sieve body (2). Between the first connecting plate (31) and the second connecting plate (32), a plurality of springs (36) distributed in a circumferential array are installed. When the second connecting plate (32) receives the vibration transmitted by the sieve body (2), the plurality of springs (36) will perform revolution and rotation to change their positions.

2. An efficient energy-saving grading screen device according to claim 1, characterized in that: Between the first connecting plate (31) and the second connecting plate (32), there are a support mechanism (37) and a swing mechanism (38). The support mechanism (37) includes a prism barrel (371) fixedly installed at the top of the first connecting plate (31). A prism (372) is slidably installed in the prism barrel (371). The swing mechanism (38) includes a ball head (382) fixedly connected to the bottom of the second connecting plate (32). A ball cage (381) is rotatably sleeved on the ball head (382). The bottom of the ball cage (381) is fixedly connected to the top end of the prism (372).

3. The high-efficiency energy-saving grading screen device according to claim 2, characterized in that: At the bottom of the second connecting plate (32), there is a second rotating mechanism (35). The second rotating mechanism (35) includes an annular plate two (351) rotatably installed in an embedded manner at the bottom of the second connecting plate (32). A plurality of rotating shafts two (352) distributed in a circumferential array are rotatably installed on the annular plate two (351). At the bottom ends of the plurality of rotating shafts two (352), a disk two (353) is fixedly installed.

4. An efficient energy-saving grading sieve device according to claim 3, characterized in that: At the top of the first connecting plate (31), there is a first rotating mechanism (34). The first rotating mechanism (34) includes an annular plate one (341) rotatably installed in an embedded manner at the top of the first connecting plate (31). A plurality of rotating shafts one (342) distributed in a circumferential array are rotatably installed on the annular plate one (341). At the top ends of the plurality of rotating shafts one (342), a disk one (343) is fixedly installed. The top ends and bottom ends of the plurality of springs (36) are respectively fixedly connected to the corresponding disk two (353) and disk one (343).

5. The high-efficiency energy-saving grading screen device according to claim 4, characterized in that: The buffer component (3) further includes a driving mechanism (39). The driving mechanism (39) includes a plurality of planet gears (3913) fixedly sleeved on the plurality of rotating shafts one (342). The plurality of planet gears (3913) are meshed with the same internal gear ring (3914) and external gear ring (3912). The internal gear ring (3914) and the external gear ring (3912) are coaxially arranged, and the internal gear ring (3914) is fixedly connected to the top of the first connecting plate (31). An inner side of the external gear ring (3912) is fixedly sleeved with a cylinder (3911) rotatably installed on the top of the first connecting plate (31).

6. The high-efficiency energy-saving grading screen device according to claim 5, characterized in that: A face gear ring (3910) is fixedly installed at the top of the cylinder (3911). The driving mechanism (39) further includes a first round shaft (391) and a second round shaft (392) rotatably installed on both sides of the prism barrel (371). The first round shaft (391) and the second round shaft (392) are coaxially arranged. A third gear (395) and a fourth gear (396) are respectively fixed on the first round shaft (391) and the second round shaft (392). The third gear (395) and the fourth gear (396) are both meshed with the face gear ring (3910).

7. An efficient energy-saving grading sieve device according to claim 6, characterized in that: A first gear (393) and a second gear (394) are respectively sleeved on the first round shaft (391) and the second round shaft (392). A first rack (397) and a second rack (398) are respectively meshed and connected to the first gear (393) and the second gear (394). The first rack (397) and the second rack (398) are symmetrically distributed about the center. The tops of the first rack (397) and the second rack (398) are fixedly installed with the same cross plate (399). The cross plate (399) penetrates through the prism (372) and is fixedly connected to the prism (372). A one-way bearing is provided between the first gear (393) and the first round shaft (391) and between the second round shaft (392) and the second gear (394), and the directions of the two one-way bearings are the same.

8. An efficient energy-saving grading screen device according to claim 1, characterized in that: A telescopic sleeve (33) is fixedly connected between the first connecting plate (31) and the second connecting plate (32). A plurality of springs (36) are all located inside the telescopic sleeve (33). A plurality of air exchange holes (331) are formed in the telescopic sleeve (33) and are distributed in a circumferential array.

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