Rotary scraper arch breaker in stock bin

Abstract

The utility model discloses a rotary scraper blade arch breaker in a stock bin, which comprises a shell, the shell is fixedly connected below the stock bin, the top of one side outside the shell is fixedly connected with a driving motor, the output end of the driving motor penetrates into the shell and is fixedly connected with a transmission chain wheel, and a blanking cavity is arranged on one side, far away from the driving motor, in the shell. A first bearing is circumferentially fixed to the upper portion of the discharging cavity, a second bearing matched with the first bearing is circumferentially fixed to the lower portion of the discharging cavity, the sides, away from the inner wall of the discharging cavity, of the first bearing and the second bearing abut against a sleeve, a hoop is arranged on the upper portion of the outer side of the sleeve, the bottom of the hoop abuts against the top of the first bearing, and a fixing ring is fixedly connected to the lower portion of the outer side of the sleeve. The middle of the outer side of the sleeve is fixedly connected with a large chain wheel, a driving chain is arranged between the large chain wheel and the transmission chain wheel chain, the upper portion of the inner side of the sleeve is fixedly connected with a plurality of rotating scrapers, and the rotating scrapers are all attached to the inner wall of the bottom of the stock bin. The arch breaking effect can be improved.

Description

Technical Field

[0001] This utility model relates to the field of material handling technology, and in particular to a rotary scraper arch breaker for silos. Background Technology

[0002] In modern industrial production, various silos are widely used to store bulk materials. During the storage of bulk materials in silos, materials are prone to arching within the silo, preventing normal material flow and significantly impacting material handling operations. Therefore, various arch-breaking devices are necessary during the unloading process to ensure smooth material flow. Existing technologies include air hammer impact, vibratory motor vibration, and compressed air blowing. However, these methods either generate significant noise or further compact the material, resulting in poor arch-breaking effectiveness. Utility Model Content

[0003] To address the aforementioned shortcomings, this utility model provides a rotary scraper arch breaker for silos, which can improve the arch breaking effect and reduce noise.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rotary scraper arch breaker for a silo, comprising a housing, the housing being fixedly connected to the bottom of the silo, a drive motor being fixedly connected to the top of one side of the housing, the output end of the drive motor penetrating into the interior of the housing and fixedly connected to a transmission sprocket, a discharge chamber being provided on the side of the housing away from the drive motor, a first bearing being circumferentially fixed to the upper part of the discharge chamber, a second bearing matching the first bearing being circumferentially fixed to the lower part of the discharge chamber, a sleeve abutting against the side of the first bearing and the second bearing away from the inner wall of the discharge chamber, a clamp being provided on the upper part of the outer side of the sleeve, the bottom of the clamp abutting against the top of the first bearing, a fixing ring being fixedly connected to the lower part of the outer side of the sleeve, the top of the fixing ring abutting against the bottom of the second bearing, a large sprocket being fixedly connected to the middle part of the outer side of the sleeve, a drive chain being provided between the large sprocket and the transmission sprocket chain, and a plurality of rotating scrapers being fixedly connected to the upper part of the inner side of the sleeve, all of the rotating scrapers being in contact with the inner wall of the bottom of the silo.

[0005] As a further improvement of this utility model, a support plate is provided between the first bearing and the second bearing, and the support plate is located on the side close to the inner wall of the feeding chamber.

[0006] As a further improvement of this utility model, a first support ring is provided below the side of the first bearing near the sleeve, the top of the first support ring abuts against the bottom of the first bearing, and the bottom of the first support ring abuts against the top of the large sprocket.

[0007] As a further improvement of this utility model, a second support ring is provided above the second bearing near the sleeve side, the top of the second support ring abuts against the bottom of the large sprocket, and the bottom of the second support ring abuts against the top of the second bearing.

[0008] As a further improvement of this utility model, the transmission sprocket is located in the transmission cavity of the housing, and the transmission cavity is connected to the feeding cavity.

[0009] As a further improvement of this utility model, a discharge cylinder is fixedly connected below the feeding chamber, and a discharge port is provided at the bottom of the discharge cylinder.

[0010] The beneficial effects of this utility model are:

[0011] By setting a rotatable sleeve and fixing a rotating scraper on the sleeve, the scraper extends into the bottom of the hopper and fits against the inner wall of the hopper. The rotation of the scraper scrapes off the loose material attached to the bottom of the hopper, thereby breaking up the arch. This method involves direct contact with the material, ensuring that the loose material can be fully scraped off and discharged smoothly, and it also produces less noise. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the rotating scraper arch breaker inside the silo;

[0013] Figure 2 yes Figure 1 Enlarged diagram of section A in the middle;

[0014] Figure 3 yes Figure 1 Enlarged schematic diagram of section B in the middle;

[0015] Figure 4 yes Figure 1 Enlarged schematic diagram of section C.

[0016] In the diagram: 1-hopper, 2-shell, 200-first frustum, 201-second frustum, 203-first abutment plate, 204-second abutment plate; 3-first support plate, 4-sleeve, 400-clamp; 5-second support ring, 6-drive sprocket, 7-drive motor, 8-second support plate, 9-large sprocket, 10-first support ring, 11-third support plate, 12-rotating scraper, 13-abutment ring, 14-discharge cylinder, 15-fixed ring, 16-second bearing, 17-first bearing. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific examples described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present utility model. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0018] like Figures 1 to 4 As shown, a rotary scraper arch breaker for a hopper includes a housing 2, which is fixedly connected to the bottom of a hopper 1. The housing 2 includes a transmission chamber and a discharge chamber. A drive motor 7 is fixed to the top of the transmission chamber, and a drive shaft is fixed to the output end of the drive motor 7, extending into the transmission chamber. A transmission sprocket 6 is fixed to the end of the drive shaft located within the transmission chamber. The transmission chamber is connected to the discharge chamber.

[0019] The feeding chamber is a cylindrical cavity, and a first frustum 200 and a second frustum 201 are formed from bottom to top inside the feeding chamber. The first frustum 200 has a larger diameter, and the second frustum 201 has a deeper diameter. A first bearing 17 is arranged at the upper part of the first frustum 200. One side of the first bearing 17 is in close contact with the inner wall of the first frustum 200, and the other side is flush with the inner wall of the feeding chamber.

[0020] A second bearing 16 is provided at the lower part of the first frustum 200. The number of second bearings 16 is the same as that of the first bearings 17, and the second bearings 16 and the first bearings 17 are arranged in a one-to-one correspondence. An arc-shaped first support plate 3 is provided between each pair of corresponding first bearings 17 and second bearings 16. The first support plate 3 is located on one side that is close to the first frustum 200. The top of the first support plate 3 abuts against the bottom of the first bearing 17, and the bottom of the first support plate 3 abuts against the top of the second bearing 16.

[0021] As a further illustration of this example, the first bearing 17 can be fixed in the axial direction above the first frustum 200 by the first support plate 3.

[0022] In the material feeding chamber, near the connection point with the transmission chamber, an arc-shaped first abutment 203 is provided along the upper end of the transmission chamber, and an arc-shaped second abutment 204 is provided along the lower end of the transmission chamber. Between the first bearing 17 and the first abutment 203 located here, an arc-shaped second support plate 8 is provided. The second support plate 8 is located on the side that is close to the first frustum 200. The top of the second support plate 8 abuts against the bottom of the first bearing 17, and the bottom of the second support plate 8 abuts against the top of the first abutment 203.

[0023] As a further illustration of this example, the first bearing 17, which is close to the transmission cavity, can be fixed axially to the top of the first frustum 200 by the second support plate 8.

[0024] Between the second bearing 16 and the second abutment 204 located here, there is an arc-shaped third support plate 11. The third support plate 11 is arranged in a one-to-one correspondence with the second support plate 8. The top of the third support plate 11 abuts against the bottom of the second abutment 204, and the bottom of the third support plate 11 abuts against the top of the second abutment 204.

[0025] The sleeve 4 is abutted on the side of the first bearing 17 and the second bearing 16 away from the first truncated cone 200. Several rotating scrapers 12 are fixed on the upper part of the sleeve 4 away from the first bearing 17. The rotating scrapers 12 extend upward and outward, are set at the bottom of the hopper 1, and are in contact with the inner wall of the hopper 1.

[0026] As a further illustration of this example, by fitting the sleeve 4 into the inner wall of the housing 2, the first bearing 17 and the second bearing 16 can be clamped in the radial direction, thereby achieving the fixing of the bearings in the radial direction.

[0027] A ring-shaped clamp 400 is provided on the upper part of the sleeve 4 near the second truncated cone 201, and the clamp 400 abuts against the top of the first bearing 17. A large sprocket 9 is fixed in the middle of the sleeve 4, and the large sprocket 9 is located at the center between the first bearing 17 and the second bearing 16. The large sprocket 9 is connected to the transmission sprocket 6 by a chain for transmission.

[0028] A first support ring 10 is provided above the large sprocket 9, and the first support ring 10 is sleeved on the sleeve 4. The top of the first support ring 10 abuts against the bottom of the first bearing 17, and the bottom of the first support ring 10 abuts against the top of the large sprocket 9. A second support ring 5 is provided below the large sprocket 9, and the second support ring 5 is sleeved on the sleeve 4. The top of the second support ring 5 abuts against the bottom of the large sprocket 9, and the bottom of the second support ring 5 abuts against the top of the second bearing 16.

[0029] As a further illustration of this example, the first support ring 10 and the second support ring 5 can make the forces on both sides of the first bearing 17 and the second bearing 16 in the axial direction balanced.

[0030] The lower part of the sleeve 4 is provided with a fixing groove, and the top of the fixing groove is fitted with a fixing ring 15 by interference fit. The top of the fixing ring 15 abuts against the bottom of the second bearing 16.

[0031] As a further illustration of this example, the retaining ring 15 can help fix the second bearing 16 and balance the forces on both sides of the second bearing 16 in the axial direction.

[0032] The bottom of the second bearing 16, near the first truncated cone 200, is abutted by a retaining ring 13. One end of the retaining ring 13 is fitted against the bottom of the housing 2 and is fixedly connected to the housing 2. The other end of the retaining ring 13 extends downward, leaving a certain gap between it and the sleeve 4. The bottom of the retaining ring 13 is flush with the bottom of the sleeve 4. A discharge cylinder 14 is fixed to the bottom of the retaining ring 13 near the sleeve 4. The top of the discharge cylinder 14 is connected to the sleeve 4, and the bottom of the discharge cylinder 14 is provided with a discharge port.

[0033] As a further illustration of this example, the parts can be fixed inside the housing 2 in the axial direction by means of the retaining ring 13.

[0034] Working principle and usage process of this utility model:

[0035] Start the drive motor 7. The drive motor 7 drives the transmission sprocket 6 to rotate through the drive shaft. The large sprocket 9, which is driven by the transmission sprocket 6 through the chain, also rotates. Since the large sprocket 9 is fixed to the sleeve 4, and the upper and lower parts of the sleeve 4 are fitted with bearings, the sleeve 4 also rotates. The rotating scraper 12 fixed on the sleeve 4 extends into the bottom of the hopper 1 and rotates to scrape the material stuck to the side wall at the bottom of the hopper 1, thereby breaking the arch at the bottom of the hopper 1.

[0036] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above-described embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A rotary scraper arch breaker for use in a silo, characterized in that, Includes a housing (2), which is fixedly connected to the bottom of the hopper (1). A drive motor (7) is fixedly connected to the top of the outer side of the housing (2). The output end of the drive motor (7) extends through the inside of the housing (2) and is fixedly connected to a transmission sprocket (6). A feeding chamber is provided on the side of the housing (2) away from the drive motor (7). A first bearing (17) is fixedly fixed circumferentially on the upper part of the feeding chamber. A second bearing (16) matching the first bearing (17) is fixedly fixed circumferentially on the lower part of the feeding chamber. A sleeve ( 4) A clamp (400) is provided on the upper outer side of the sleeve (4). The bottom of the clamp (400) abuts against the top of the first bearing (17). A fixing ring (15) is fixedly connected to the lower outer side of the sleeve (4). The top of the fixing ring (15) abuts against the bottom of the second bearing (16). A large sprocket (9) is fixedly connected to the middle outer side of the sleeve (4). A drive chain is provided between the large sprocket (9) and the transmission sprocket (6). Several rotating scrapers (12) are fixedly connected to the upper inner side of the sleeve (4). Several rotating scrapers (12) are all in contact with the inner wall of the bottom of the hopper (1).

2. The rotary scraper arch breaker in the silo according to claim 1, characterized in that, A support plate is provided between the first bearing (17) and the second bearing (16), and the support plate is located on the side close to the inner wall of the feeding chamber.

3. The rotary scraper arch breaker in the silo according to claim 1, characterized in that, A first support ring (10) is provided below the first bearing (17) on the side near the sleeve (4). The top of the first support ring (10) abuts against the bottom of the first bearing (17), and the bottom of the first support ring (10) abuts against the top of the large sprocket (9).

4. The rotary scraper arch breaker in the silo according to claim 1, characterized in that, A second support ring (5) is provided above the second bearing (16) on the side near the sleeve (4). The top of the second support ring (5) abuts against the bottom of the large sprocket (9), and the bottom of the second support ring (5) abuts against the top of the second bearing (16).

5. The rotary scraper arch breaker in the silo according to claim 1, characterized in that, The transmission sprocket (6) is located in the transmission cavity of the housing (2), and the transmission cavity is connected to the feeding cavity.

6. The rotary scraper arch breaker in the silo according to claim 1, characterized in that, A discharge cylinder (14) is fixedly connected below the discharge chamber, and a discharge port is provided at the bottom of the discharge cylinder (14).

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