Anti-blocking device of coal picker

Abstract

The utility model relates to the field of coal separators, in particular to an anti-blocking device of a coal separator. When the coal picker runs, a large number of coal briquettes with the size close to that of sieve holes in the coal briquettes cannot smoothly penetrate through a vibrating screen, so that part of the coal briquettes are accumulated on the vibrating screen to form blockage in the screening process. In order to solve the technical problem, the anti-blocking device of the coal picker comprises a supporting base, four supporting columns are fixedly connected to the upper end of the supporting base, a discharging bin is fixedly connected to the side faces of the supporting columns, and a connecting shaft is rotationally connected to the inner side face of the discharging bin. The outer side face of the end, away from the discharging bin, of the connecting shaft is rotationally connected with a third connecting rod. The motor is started, the output end of the motor drives the third belt wheel to rotate, the third belt wheel drives the first belt wheel to rotate through the belt, the strip-shaped scraper is further driven to do reciprocating motion, and the problem that when the coal picker runs, coal blocks contain coal blocks with the size close to that of screen holes, and consequently part of the coal blocks are accumulated on the screen holes during screening, and blockage is formed is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of coal preparation machine especially relates to a coal preparation machine's anti - jam device. BACKGROUND

[0002] Coal preparation machine, as the key equipment of coal block processing and utilization field, its background is profound and significant. The development history of coal preparation machine is long, from the initial manual selection to today's mechanization, automation production, its technical progress and the development of coal block industry are closely connected, with the progress of science and technology, the type and function of coal preparation machine are increasingly rich, including vibrating screen, grading screen, flotation machine, magnetic separator and so on, these equipment can realize efficient separation according to the physical property difference of coal block and impurities. In modern coal block processing process, coal preparation machine has become an indispensable link, it can not only improve the quality of coal block, meet the needs of different users.

[0003] In the operation process of coal preparation machine, a large amount of coal blocks close to the size of sieve hole may be contained in the coal block, which cannot smoothly pass through the vibrating screen, thereby causing part of the coal block to accumulate on the vibrating screen and form a jam in the screening process. UTILITY MODEL CONTENTS

[0004] (1) technical problem to be solved

[0005] The utility model discloses in order to overcome the coal preparation machine in the operation process, a large amount of coal blocks close to the size of sieve hole may be contained in the coal block, thereby causing part of the coal block to accumulate on the vibrating screen and form a jam in the screening process, the technical problem to be solved by the utility model is to provide a coal preparation machine's anti - jam device.

[0006] (2) technical scheme

[0007] In order to solve the above technical problem, the utility model provides a coal preparation machine's anti - jam device, including support base, four support columns are fixedly connected on the support base upper end, four the side surface of support column is fixedly connected with the discharge bin, the inside of discharge bin is provided with anti - jam mechanism, the anti - jam mechanism includes connecting shaft, the inside of discharge bin is rotatably connected with connecting shaft, the one side of connecting shaft penetrates discharge bin, the outside of the one end of connecting shaft located in the inside of discharge bin is rotatably connected with connecting rod three, the end of connecting shaft and located the outside of connecting rod three is fixedly connected with connecting rod two, the one end of connecting rod two away from connecting rod three is rotatably connected with connecting rod one through the pivot, the one end of connecting rod three away from connecting rod two is fixedly connected on the inside of discharge bin through the pivot, the outside of the pivot end of the one end of connecting rod three away from connecting rod two is fixedly connected with connecting rod four, the one end of connecting rod four away from connecting rod three is rotatably connected in the middle of connecting rod one through the pivot, the one end of connecting rod one away from connecting rod two is fixedly connected with strip-shaped scraper through the pivot.

[0008] Preferably, a drive shaft is rotatably connected inside the feeding hopper, the drive shaft passes through the feeding hopper, and two cams are symmetrically fixedly connected to the outer side of the drive shaft and inside the feeding hopper.

[0009] Preferably, a motor is fixedly connected to the upper end of the support base, a third pulley is fixedly connected to the output end of the motor, a second pulley is fixedly connected to the end of the transmission shaft located on the outer side of the feeding bin, a belt is sleeved between the second pulley and the third pulley, a first pulley is fixedly connected to the end of the connecting shaft that passes through the feeding bin, and a belt is sleeved between the first pulley and the second pulley.

[0010] Preferably, two feeding funnels are symmetrically and fixedly connected to the lower end of the feeding bin.

[0011] Preferably, four connecting blocks are fixedly connected to the inner side of the feeding hopper, and a return spring is fixedly connected to the upper end of each connecting block. A vibrating screen is fixedly connected to the upper end of each of the four return springs, and the vibrating screen is slidably connected to the inner side of the feeding hopper and is inclined.

[0012] Preferably, the feeding bin has a through hole at one end near the strip scraper, and a discharge plate is fixedly connected to the outer side of the through hole.

[0013] (3) Beneficial effects

[0014] The beneficial effects of this utility model are as follows: the motor output drives pulley three to rotate, pulley three drives pulley two to rotate via a belt, pulley two drives pulley one to rotate via a belt, pulley one drives connecting rod two to rotate via a connecting shaft, connecting rod two drives connecting rod one to move via a rotating shaft, connecting rod one drives connecting rod four to rotate via a central rotating shaft, connecting rod four limits connecting rod one to reciprocate, connecting rod one drives strip scraper to reciprocate via a rotating shaft, thereby causing the strip scraper to move the coal blocks stuck in the screen holes. This mechanism solves the problem that during the operation of the coal preparation machine, the coal blocks may contain a large number of coal blocks close to the size of the screen holes, which will cause some coal blocks to accumulate on the screen holes and form blockages during the screening process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the anti-clogging mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the vibrating screen structure of this utility model;

[0019] Figure 5 This is a cross-sectional view of the feeding hopper of this utility model.

[0020] The labels in the attached diagram are as follows: 1-feeding hopper, 2-support base, 201-support column, 3-feeding funnel, 4-discharge plate, 5-anti-clogging mechanism, 501-strip scraper, 502-connecting rod one, 503-connecting rod two, 504-connecting rod three, 505-connecting rod four, 506-connecting shaft, 507-pulley one, 508-pulley two, 509-pulley three, 510-motor, 6-drive shaft, 7-cam, 8-reset spring, 9-connecting block, 10-vibrating screen. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0022] An anti-clogging device for a coal preparation machine, such as Figures 1-5 As shown, it includes a support base 2, with four pillars 201 fixedly connected to the upper end of the support base 2. A feeding hopper 1 is fixedly connected to the sides of the four pillars 201. An anti-blocking mechanism 5 is installed inside the feeding hopper 1. The anti-blocking mechanism 5 includes a connecting shaft 506, which is rotatably connected to the inner side of the feeding hopper 1. The connecting shaft 506 passes through one side of the feeding hopper 1 and is used to connect a pulley 1 507 and a connecting rod 2 503. A connecting rod 3 504 is rotatably connected to the outer side of the connecting shaft 506 located inside the feeding hopper 1. A connecting rod 2 503 is fixedly connected to the end of the connecting shaft 506 and outside the connecting rod 3 504. 3. Connecting rod 1 502 is rotatably connected to the end of connecting rod 3 504 away from connecting rod 2 503 via a rotating shaft. Connecting rod 3 504 is fixedly connected to the inner side of the feeding bin 1 via a rotating shaft. Connecting rod 4 505 is fixedly connected to the outer side of the rotating shaft end of connecting rod 3 504 away from connecting rod 2 503. Connecting rod 4 505 is used to limit connecting rod 1 502 to make it reciprocate. Connecting rod 4 505 is rotatably connected to the middle of connecting rod 1 502 via a rotating shaft. A strip scraper 501 is fixedly connected to the end of connecting rod 1 502 away from connecting rod 2 503 via a rotating shaft. The strip scraper 501 is used to move the coal blocks piled on the vibrating screen 10.

[0023] A drive shaft 6 is rotatably connected inside the feeding hopper 1. The drive shaft 6 passes through the feeding hopper 1. Two cams 7 are symmetrically fixedly connected to the outer side of the drive shaft 6 and inside the feeding hopper. The output end of the motor 510 drives the pulley 3 509 to rotate. The pulley 3 509 drives the pulley 2 508 to rotate through the belt. The drive shaft 6 is fixedly connected to one side of the pulley 2 508. The pulley 2 508 drives the drive shaft 6 to rotate. The drive shaft 6 drives the cams 7 to rotate. The cams 7 lift the vibrating screen 10 intermittently by rotating, so that the vibrating screen 10 vibrates continuously, thereby causing the coal blocks to leak through the vibrating screen 10 into the feeding hopper 3.

[0024] A motor 510 is fixedly connected to the upper end of the support base 2. A pulley 3 509 is fixedly connected to the output end of the motor 510. A pulley 2 508 is fixedly connected to the end of the transmission shaft 6 located on the outer side of the feeding bin 1. A belt is sleeved between pulley 2 508 and pulley 3 509. A pulley 1 507 is fixedly connected to the end of the connecting shaft 506 that passes through the feeding bin. A belt is sleeved between pulley 1 507 and pulley 2 508. The output end of the motor 510 drives pulley 3 509 to rotate. Pulley 3 509 drives pulley 2 508 to rotate through the belt. Pulley 2 508 drives pulley 1 507 to rotate through the belt. Pulley 1 507 drives connecting rod 2 503 to rotate through connecting shaft 506.

[0025] Two feeding hoppers 3 are symmetrically and fixedly connected to the lower end of the feeding bin 1. After the coal blocks pass through the vibrating screen 10, they enter the feeding hoppers 3 to complete part of the coal preparation work.

[0026] Four connecting blocks 9 are fixedly connected to the inner side of the feeding bin 1. A return spring 8 is fixedly connected to the upper end of the connecting block 9. A vibrating screen 10 is fixedly connected to the upper end of the four return springs 8. The vibrating screen 10 is slidably connected to the inner side of the feeding bin 1 and is inclined to facilitate the movement of coal blocks forward during the vibration of the vibrating screen 10.

[0027] A through hole is provided at one end of the feeding bin 1 near the strip scraper 501. A discharge plate 4 is fixedly connected to the outer side of the through hole. Coal blocks that do not pass through the vibrating screen 10 and leak into the feeding hopper 3 continue to move on the vibrating screen 10 until they move to the rightmost end of the feeding bin 1. The remaining coal blocks leave the feeding bin 1 through the discharge plate 4, and the coal selection work is completed at this time.

[0028] Working principle: When coal lumps enter the vibrating screen 10 from the left side of the feed hopper 1, the motor 510 is started. The output end of the motor 510 drives the pulley 3 509 to rotate. The pulley 3 509 drives the pulley 2 508 to rotate via a belt. The drive shaft 6 is fixedly connected to one side of the pulley 2 508. The pulley 2 508 drives the drive shaft 6 to rotate. The drive shaft 6 drives the cam 7 to rotate. The cam 7 intermittently lifts the vibrating screen 10, causing the vibrating screen 10 to vibrate continuously. This causes some coal lumps to leak through the vibrating screen 10 into the primary feed hopper 3 for preliminary screening. The vibrating screen 10 is fixedly connected to four return springs 8. The return springs 8 are fixedly connected to the connecting block 9. The connecting block 9 is fixedly connected to the four return springs 8. The cam 7 is fixedly connected to the inner side of the feeding bin 1. When the vibrating screen 10 is lifted by the cam 7, the cam 7 continues to rotate and disengages from the vibrating screen 10. The vibrating screen 10 is reset by gravity and the return spring. At this time, the coal blocks that have not passed through the vibrating screen 10 continue to move forward on the vibrating screen 10. When the coal blocks enter the side of the vibrating screen 10 with larger screen holes, due to the continuous vibration of the vibrating screen 10, some coal blocks leak into the secondary feeding hopper 3 to complete further screening. The coal blocks that have not passed through the vibrating screen 10 and leaked into the feeding hopper 3 continue to move on the vibrating screen 10 until they reach the rightmost end of the feeding bin 1. The remaining coal blocks leave the vibrating screen 10 through the discharge plate 4. At this time, the coal selection work is completed.

[0029] When some coal lumps, due to their size being close to the screen aperture size, accumulate on the vibrating screen 10 during the screening process, causing blockage, the output of motor 510 drives pulley three 509 to rotate. Pulley three 509 drives pulley two 508 to rotate via a belt. Pulley two 508 drives pulley one 507 to rotate via a belt. Pulley one 507 drives connecting rod two 503 to rotate circumferentially via connecting shaft 506. Connecting rod two 503 drives connecting rod one 502 to move via a rotating shaft. Connecting rod one 502 drives connecting rod four 505 to rotate via a central rotating shaft. Since one end of connecting rod four 505 is rotatably connected to one end of connecting rod three 504 via a rotating shaft, connecting rod three 504 is fixed via the rotating shaft. The connecting rod 505 is fixedly connected to the inner side of the feeding hopper 1, so that the end of the connecting rod 4 505 connected to the connecting rod 1 502 only swings back and forth at a certain angle. The connecting rod 4 505 limits the connecting rod 1 502, so that the connecting rod 1 502 moves back and forth. The strip scraper 501 is fixedly connected to one end of the connecting rod 1 502 through a rotating shaft. The connecting rod 1 502 drives the strip scraper 501 to move back and forth through the rotating shaft, so that the strip scraper 501 moves the coal blocks accumulated on the vibrating screen 10. The coal blocks accumulated on the vibrating screen 10 are moved by the strip scraper 501, so that the coal blocks move on the vibrating screen 10 for further screening, thereby solving the problem of coal blockage on the vibrating screen 10.

[0030] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An anti-clogging device for a coal preparation machine, characterized in that, The system includes a support base (2), on which four pillars (201) are fixedly connected at the upper end. A feeding hopper (1) is fixedly connected to the sides of the four pillars (201). An anti-blocking mechanism (5) is provided inside the feeding hopper (1). The anti-blocking mechanism (5) includes a connecting shaft (506), which is rotatably connected to the inner side of the feeding hopper (1). The connecting shaft (506) passes through one side of the feeding hopper (1). A connecting rod (504) is rotatably connected to the outer side of one end of the connecting shaft (506) inside the feeding hopper (1). A connecting rod (504) is fixedly connected to the end of the connecting shaft (506) and outside the connecting rod (504). Link 2 (503) is connected to Link 1 (502) via a pivot at the end of Link 2 (504) away from Link 3 (504). Link 3 (504) is fixedly connected to the inner side of the feeding hopper (1) via a pivot at the end of the pivot at the end of Link 3 (504) away from Link 2 (503). Link 4 (505) is fixedly connected to the outer side of the pivot at the end of Link 3 (504) away from Link 2 (503). Link 4 (505) is rotatably connected to the middle part of Link 1 (502) via a pivot at the end of Link 4 (505) away from Link 3 (504). A strip scraper (501) is fixedly connected to the end of Link 1 (502) away from Link 2 (503) via a pivot.

2. The anti-clogging device for a coal preparation machine according to claim 1, characterized in that, The feeding bin (1) is rotatably connected to a drive shaft (6), which passes through the feeding bin (1). Two cams (7) are symmetrically fixedly connected to the outer side of the drive shaft (6) and inside the feeding bin (1).

3. The anti-clogging device for a coal preparation machine according to claim 2, characterized in that, A motor (510) is fixedly connected to the upper end of the support base (2). A pulley three (509) is fixedly connected to the output end of the motor (510). A pulley two (508) is fixedly connected to the end of the transmission shaft (6) located on the outer side of the feeding bin (1). A belt is sleeved between the pulley two (508) and the pulley three (509). A pulley one (507) is fixedly connected to the end of the connecting shaft (506) that passes through the feeding bin (1). A belt is sleeved between the pulley one (507) and the pulley two (508).

4. The anti-clogging device for a coal preparation machine according to claim 3, characterized in that, The lower end of the feeding bin (1) is symmetrically and fixedly connected to two feeding funnels (3).

5. The anti-clogging device for a coal preparation machine according to claim 4, characterized in that, Four connecting blocks (9) are fixedly connected to the inner side of the feeding bin (1). A reset spring (8) is fixedly connected to the upper end of the connecting block (9). A vibrating screen (10) is fixedly connected to the upper end of the four reset springs (8). The vibrating screen (10) is slidably connected to the inner side of the feeding bin (1) and is inclined.

6. The anti-clogging device for a coal preparation machine according to claim 5, characterized in that, The feeding bin (1) has a through hole at one end near the strip scraper (501), and a discharge plate (4) is fixedly connected to the outer side of the through hole.

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