Drive for a screening machine

Abstract

The utility model belongs to the technical field of drivers, and discloses a driver for a screening machine, which comprises a shell, a swing ring, a rotating disc and a rotating shaft are arranged in the shell, first bearings are arranged on two opposite side surfaces of the shell, the rotating shaft is transversely and rotatably arranged in the shell through the two first bearings, a connecting hole is eccentrically formed in the disc surface of the rotating disc, and the connecting hole is arranged in the shell. A second bearing is arranged between the swing ring and the rotary disc, an inner ring of the second bearing is fixedly connected with the disc edge of the rotary disc, an outer ring of the second bearing is fixedly connected with the inner ring face of the swing ring, a swing arm is arranged on the outer ring face of the swing ring, and a notch for the swing arm to stretch out and swing is formed in the side face of the shell. The two ends of the rotating shaft penetrate through the first bearings on the two sides of the shell, and driving wheels are arranged at the ends of the rotating shaft. Therefore, the oil quality of the lubricating oil cannot be polluted by the outside, the service life is long, daily maintenance is not needed, the lubricating effect is ensured, the labor intensity is reduced, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of driving, in particular to a driver for a screening machine. Background Art

[0002] A planar reciprocating screen swings or vibrates in a plane driven by a driving unit. There are mainly two types of such driving units. One is the direct drive type of eccentric shaft bearing. This driving method has a high operating frequency and a small amplitude, and is suitable for screening of materials with a small diameter. Its driving structure is simple and lubricated with grease. Due to the influence of conditions such as insufficient installation accuracy, overload operation, too high ambient temperature, and high dust concentration in the use environment, it is easy to cause grease overflow or failure, and then cause failures due to poor lubrication, with a high failure rate and a low service life, and it needs to be maintained every shift, resulting in a relatively high production cost.

[0003] The other is the eccentric wheel drive type driven by a gear reduction box. This driving method has a low operating frequency and a large swing amplitude, and is suitable for screening of materials with a large diameter. However, the driving structure is complex and the production cost is high. Its external eccentric wheel structure uses a grease lubrication method and needs to be maintained frequently. Because of gear transmission, extremely high noise is generated during operation due to the meshing of gears, polluting the environment. Affected by cost control, the gearbox is mostly made of cast iron, with insufficient strength and easy to cause cracking of the gearbox. Summary of the Utility Model

[0004] In order to solve the above problems, the utility model provides a driver for a screening machine.

[0005] The above technical purpose of the utility model is achieved by the following technical solutions: A driver for a screening machine includes a housing. A swing ring, a rotating disc and a rotating shaft are arranged inside the housing. A first bearing is arranged on each of the opposite side surfaces of the housing. The rotating shaft is horizontally rotatably arranged inside the housing through the two first bearings. A connecting hole is eccentrically arranged on the disc surface of the rotating disc. The rotating shaft passes through the connecting hole and is key-connected to the rotating disc. A second bearing is arranged between the swing ring and the rotating disc. The inner ring of the second bearing is fixedly connected to the edge of the rotating disc, and the outer ring is fixedly connected to the inner ring surface of the swing ring. A swing arm extending out of the housing is arranged on the outer ring surface of the swing ring. A notch for the swing arm to extend out and swing is arranged on the side surface of the housing. Both ends of the rotating shaft pass through the first bearings on both sides of the housing and driving wheels are arranged at the ends.

[0006] By adopting the above technical solutions, the swing ring, the rotating disc and the rotating shaft are arranged inside the housing, and the housing adopts a sealed structure, so that the quality of the lubricating oil will not be polluted by the outside, the service life is long, and it does not need to be maintained by the operator every day, ensuring the lubrication effect, reducing the labor intensity of the operator, thus greatly reducing the production cost and improving the production efficiency.

[0007] Furthermore, the housing includes a base, a rectangular enclosure with upper and lower openings is provided on the base. U-shaped openings opening upward are formed on both side surfaces of the rectangular enclosure in the length direction. Mounting plates with contours larger than the U-shaped openings are provided at the U-shaped openings. The mounting plates are perforated and second bearings are provided at the perforations. A top cover is further provided on the rectangular enclosure.

[0008] By adopting the above technical solution, the base, the rectangular enclosure, the top cover, the U-shaped openings and the mounting plates are provided, which facilitates the installation of components such as the swing ring, the rotating disk, and the rotating shaft.

[0009] Furthermore, a cover plate is further provided outside the mounting plate. A through hole for the rotating shaft to pass through is formed in the middle of the cover plate. An annular groove is provided on the inner side plate surface of the cover plate, and a sealing ring is provided in the annular groove.

[0010] By adopting the above technical solution, a cover plate is further provided outside the mounting plate, and an annular groove and a sealing ring are provided on the inner side plate surface of the cover plate, which can seal the outside of the second bearing and prevent foreign matters from entering the housing and affecting the lubricating oil.

[0011] Furthermore, a plurality of support plates are further provided between the base and the bottom of the rectangular enclosure.

[0012] By adopting the above technical solution, a plurality of support plates are provided between the base and the bottom of the rectangular enclosure, thereby strengthening the stability of the rectangular enclosure and ensuring the stable operation when the rotating shaft rotates.

[0013] Furthermore, a third bearing is provided at the front end of the swing arm, and a connecting shaft perpendicular to the swing arm is fixedly provided on the inner ring of the third bearing.

[0014] By adopting the above technical solution, a third bearing and a connecting shaft are provided at the front end of the swing arm, which facilitates the connection with the flat screen.

[0015] In summary, the present utility model has the following beneficial effects: In this application, by arranging the swing ring, the rotating disk and the rotating shaft in the housing, and the housing adopts a sealing structure, the quality of the lubricating oil will not be polluted by the outside, the service life is long, and it does not require operators to perform maintenance every day, ensuring the lubricating effect, reducing the labor intensity of the operators, thereby greatly reducing the production cost and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the embodiment of the present utility model;

[0017] Figure 2 is the exploded schematic diagram of the embodiment of the present utility model;

[0018] Figure 3 is Figure 1 the sectional view taken along direction A of

[0019] Figure 4 is Figure 1 the sectional view taken along direction B of

[0020] Figure 5 is the structural schematic diagram of the cover plate in the embodiment of the present utility model.

[0021] In the figure: 10, housing; 101, notch; 11, base; 12, rectangular enclosure; 121, U-shaped opening; 13, mounting plate; 14, top cover; 15, cover plate; 151, through hole; 152, annular groove; 16, sealing ring; 17, support plate; 20, swing ring; 21, second bearing; 22, swing arm; 23, third bearing; 24, connecting shaft; 30, rotating disk; 31, connecting hole; 40, rotating shaft; 41, first bearing; 50, driving wheel. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] As Figure 1-5 shown, the embodiment of the present application discloses a driver for a screening machine, including a housing 10. Swing ring 20, rotating disk 30, rotating shaft 40, first bearing 41, second bearing 21 and other moving parts are arranged in the housing 10, so that all parts that need lubrication are arranged in the housing 10. The lubrication method using lubricating oil not only ensures the lubrication effect, but also effectively reduces the temperature rise during the operation of the bearing.

[0024] When specifically setting, the housing 10 includes a base 11, a rectangular enclosure 12 and a top cover 14. The rectangular enclosure 12 is an overall housing with openings at both the top and bottom. A number of support plates 17 are provided between the base 11 and the bottom of the rectangular enclosure 12 to support the rectangular enclosure 12. The top cover 14 is bolted to the top of the rectangular enclosure 12, which is convenient for disassembly, thus facilitating the installation and maintenance of various components inside the housing 10. Sealing gaskets are provided at the joints of the base 11, the rectangular enclosure 12 and the top cover 14 to ensure the sealing effect at the joints and prevent impurities, dust, etc. in the outside air from entering the housing 10. U-shaped openings 121 opening upwards are provided on both side surfaces in the length direction of the rectangular enclosure 12. On the outside of the U-shaped openings 121, mounting plates 13 with a contour larger than that of the U-shaped openings 121 are provided. The mounting plates 13 are bolted to the rectangular enclosure 12, which is convenient for disassembly and installation, and sealing gaskets are provided at the joints for sealing treatment. Openings are made on the lower side of the mounting plates 13, and first bearings 41 are provided at the openings. A rotating shaft 40 is rotatably arranged jointly inside the two first bearings 41. That is, the outer ring of the first bearing 41 is fixedly connected to the hole wall of the opening in the mounting plate 13, and the inner ring is fixedly connected to the rotating shaft 40 through a key. Thus, the rotating shaft 40 is horizontally rotatably arranged inside the housing 10.

[0025] Furthermore, it is set that a cover plate 15 is also provided outside the mounting plate 13. A through hole 151 for the rotating shaft 40 to pass through is provided in the middle of the cover plate 15. The cover plate 15 is bolted to the mounting plate 13, which is convenient for disassembly and installation, and sealing gaskets are provided at the joints for sealing treatment. An annular groove 152 is provided on the inner side surface of the cover plate 15, and a sealing ring 16 is provided in the annular groove 152. The inner diameter of the sealing ring 16 is the same as the shaft diameter of the rotating shaft 40 at this position. The joints between the rotating shaft 40 and the first bearing 41 and the outside of the first bearing 41 are sealed by the cover plate 15 and the sealing ring 16. Both ends of the rotating shaft 40 pass through the first bearings 41 on both sides of the housing 10, and driving wheels 50 are provided at the ends. The driving wheels 50 are used to connect with the power unit, and the power unit drives the driving wheels 50 to rotate, thereby driving the rotating shaft 40 to rotate.

[0026] A second bearing 21 is provided between the swing ring 20 and the rotating disk 30. The inner ring of the second bearing 21 is fixedly connected to the rim of the rotating disk 30, and the outer ring is fixedly connected to the inner ring surface of the swing ring 20. A connecting hole 31 is eccentrically provided on the disk surface of the rotating disk 30. The rotating shaft 40 passes through the connecting hole 31 and is key-connected to the rotating disk 30, so that the rotating shaft 40 is eccentric to the swing ring 20. When the rotating shaft 40 rotates, it drives the swing ring 20 to reciprocate horizontally. A swing arm 22 extending outward from the housing 10 is provided on the outer ring surface of the swing ring 20. A notch 101 for the swing arm 22 to extend out and swing is provided on the side surface of the rectangular enclosure 12 of the housing 10 in the width direction. A dust-proof cloth that can be telescopically moved is provided at the swing arm 22 and the notch 101, and the notch 101 is shielded by the dust-proof cloth to prevent impurities, dust, etc. in the external air from entering the housing 10.

[0027] To facilitate the use of the driver, a third bearing 23 is provided at the front end of the swing arm 22. The inner ring of the third bearing 23 is fixedly provided with a connecting shaft 24 perpendicular to the swing arm 22. The connecting shaft 24 is used to connect to the flat screen. Thus, when the power unit drives the driving wheel 50 to rotate and drives the rotating shaft 40 to rotate, the swing ring 20 and the swing arm 22 drive the flat screen to reciprocate.

[0028] In this application, the moving parts such as the swing ring 20, the rotating disk 30, the rotating shaft 40, the first bearing 41, and the second bearing 21 are arranged in the housing 10, and the periphery of the housing 10 is sealed. Thus, the moving parts such as the swing ring 20, the rotating disk 30, the rotating shaft 40, the first bearing 41, and the second bearing 21 are placed in a relatively sealed environment, and then thin oil is used for lubrication. In this way, the quality of the lubricating oil will not be polluted by the outside, the service life is long, and it does not require the operator to perform maintenance every day, ensuring the lubrication effect, reducing the labor intensity of the operator, thus greatly reducing the production cost and improving the production efficiency.

[0029] The above description is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A drive for a screening machine, characterized in that: It includes a housing (10), in which a swing ring (20), a rotating disk (30) and a rotating shaft (40) are arranged. On the opposite two side surfaces of the housing (10), a first bearing (41) is provided respectively. The rotating shaft (40) is horizontally rotatably arranged in the housing (10) through two first bearings (41). An attachment hole (31) is eccentrically arranged on the disk surface of the rotating disk (30). The rotating shaft (40) passes through the attachment hole (31) and is key-connected to the rotating disk (30). A second bearing (21) is arranged between the swing ring (20) and the rotating disk (30). The inner ring of the second bearing (21) is fixedly connected to the disk edge of the rotating disk (30), and the outer ring is fixedly connected to the inner ring surface of the swing ring (20). A swing arm (22) extending outward from the housing (10) is arranged on the outer ring surface of the swing ring (20). A notch (101) for the swing arm (22) to extend out and swing is arranged on the side surface of the housing (10). Both ends of the rotating shaft (40) pass through the first bearings (41) on both sides of the housing (10) and driving wheels (50) are arranged at the ends.

2. The drive for a screening machine according to claim 1, characterized in that: The housing (10) includes a base (11), on which a rectangular enclosure (12) with upper and lower openings is arranged. U-shaped openings (121) opening upward are arranged on the two side surfaces in the length direction of the rectangular enclosure (12). Mounting plates (13) with outlines larger than the U-shaped openings (121) are arranged at the U-shaped openings (121). The mounting plates (13) are perforated and second bearings (21) are arranged at the perforated places. A top cover (14) is also arranged on the rectangular enclosure (12).

3. The drive for a screening machine according to claim 2, characterized in that: A cover plate (15) is also arranged outside the mounting plate (13). A through hole (151) for the rotating shaft (40) to pass through is arranged in the middle of the cover plate (15). An annular groove (152) is arranged on the inner side plate surface of the cover plate (15). A sealing ring (16) is arranged in the annular groove (152).

4. The drive for a screening machine according to claim 2, characterized in that: A number of support plates (17) are also arranged between the base (11) and the bottom of the rectangular enclosure (12).

5. The drive for a screening machine according to claim 1, characterized in that: A third bearing (23) is arranged at the front end of the swing arm (22). A connecting shaft (24) perpendicular to the swing arm (22) is fixedly arranged on the inner ring of the third bearing (23).

Images