Belt driving structure for screening machine

Abstract

The utility model discloses a belt driving structure for a screening machine, relates to the technical field of belt driving structures, and aims to solve the problems that an existing belt pulley is easy to break and slip when being mounted and is inconvenient to take down from the belt pulley when needing to be maintained. A movable base is arranged on the base, the motor is installed on the movable base, and the belt pulley is of a split type mechanism and is fixed to the main shaft through an adjusting mechanism. Through the split type structural design of the belt pulleys, the diameters of the belt pulleys can be reduced during installation under the driving of the adjusting mechanism, so that the belt pulleys can be conveniently and directly attached to the belt pulleys, and after the operation is completed, the belt pulleys can be conveniently and rapidly attached to the belt pulleys only by rotating the adjusting screw rod through a tool, rotating the adjusting screw rod and enabling one group of belt pulleys to move inwards under the limiting of the vertical plate. And under the design of the gear and the crown gear, the other three groups of belt wheels are driven to synchronously move inwards or outwards, so that the belt can be conveniently and quickly mounted.

Description

Technical Field

[0001] This utility model relates to the field of belt drive structure technology, and in particular to a belt drive structure for a screening machine. Background Technology

[0002] The existing pulleys are of a one-piece structure. When installing the belt, workers often need to use a pry bar to install it. Although the installation principle is simple, it is inconvenient to operate. As a result, the belt is prone to breakage and slippage when it is assembled.

[0003] Therefore, this application provides a belt drive structure for a screening machine to meet the requirements. Utility Model Content

[0004] The purpose of this application is to provide a belt drive structure for a screening machine, which aims to solve the problems of existing pulleys being prone to breakage and slippage when the belt is installed, and the inconvenience of removing the belt from the pulley when maintenance is required.

[0005] To achieve the above objectives, this application provides the following technical solution: a belt-driven structure for a screening machine, comprising a base and a screen frame, a motor, and a drive wheel. A set of main shafts is provided on the inner bottom surface of the base, and a pulley is provided on the main shafts. The screen frame is provided on the base, and a motor is also provided on the base. The drive shaft of the motor is provided with a drive wheel, and the drive wheel is connected to the pulley via a belt. A movable base is provided on the base, and the motor is mounted on the movable base. The pulley is a split mechanism and is fixed to the main shaft by an adjustment mechanism.

[0006] Preferably, the pulleys are divided into four parts and arranged in a circular array.

[0007] Preferably, the adjusting mechanism includes a vertical plate and a protrusion, an adjusting screw, a rotating rod, a gear, and a crown gear. The top surface of the pulley is provided with a sliding hole, the bottom surface of the main shaft is provided with a coupling, the bottom surface of the coupling is provided with a base plate, the top surface of the base plate is provided with a rectangular vertical plate, and the vertical plate is slidably connected to the sliding hole. The vertical plate is provided with a rotating hole, and the top surface of the pulley is provided with a protrusion with a threaded hole. The rotating rod is connected to the adjusting screw, and the connection between the rotating rod and the adjusting screw is located in the rotating hole. The adjusting screw is threadedly connected to the threaded hole. The inner end face of the rotating rod is provided with a gear, and a crown gear is rotatably connected to the outer wall of the coupling. The crown gear meshes with the gear.

[0008] A hexagonal hole is provided on the outer end face of the adjusting screw.

[0009] Preferably, the base has perforations that correspond to the positions of the hexagonal hole brackets, and a hanging plate is suspended on the inner wall of the base, with holes on the hanging plate corresponding to the positions of the hexagonal holes.

[0010] Preferably, the movable base includes a support and a sliding plate. The support has a U-shaped cross-section and a sliding plate is provided on the top surface of the support. The top surface of the support has a dovetail groove and a dovetail block is provided on the bottom surface of the sliding plate. The dovetail block and the dovetail groove are slidably connected, and a motor is provided on the sliding plate.

[0011] The skateboard and the support are fixed in position by bolts.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] This invention, through its split-type pulley structure design, allows for a reduction in pulley diameter during installation, driven by an adjustment mechanism. This facilitates direct attachment of the pulley to the main pulley. After this operation, simply rotate the adjusting screw using a tool. The screw's rotation, limited by the vertical plate, causes one set of pulleys to move inward. Furthermore, the gear and crown gear design simultaneously drive the other three sets of pulleys to move inward or outward, enabling convenient and quick belt installation. This avoids the breakage and slippage problems mentioned in the background art and also facilitates belt removal for subsequent maintenance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0016] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the structure of the present utility model. Figure 3 ;

[0018] Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model.

[0019] In the diagram: 1. Base; 2. Main shaft; 3. Coupling; 4. Base plate; 5. Vertical plate; 51. Rotary hole; 6. Pulley; 7. Sliding hole; 8. Protrusion; 9. Adjusting screw; 10. Rotating rod; 11. Gear; 12. Crown gear; 13. Hanging plate; 14. Support; 15. Slide plate; 16. Motor; 17. Drive wheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Reference Figure 1-4 The belt-driven structure for a screening machine shown includes a frame on a base 1, a main shaft 2 rotatably connected to the middle of the base 1, an eccentric wheel on the top surface of the main shaft 2 for oscillation, a coupling 3 on the bottom surface of the main shaft 2, a base plate 4 on the top surface of the coupling 3, a pulley 6 slidably connected to the base plate 4, an adjustment mechanism on the base plate 4 for controlling the diameter of the pulley 6, a movable base on the outer wall of the base 1, a motor 16 on the movable base, a drive wheel 17 on the drive shaft of the motor 16, and the drive wheel 17 connected to the pulley 6 via a belt.

[0022] The aforementioned pulley 6 has a split structure, dividing a set of pulleys 6 into four parts.

[0023] Adjustment mechanism: Four sets of vertical plates 5 arranged in a ring array are provided on the top surface of the base plate 4. A sliding hole 7 is provided on the pulley 6, and the vertical plates 5 are slidably connected in the sliding hole 7. A protrusion 8 is provided on the top surface of the pulley 6, and a threaded hole is provided on the protrusion 8. A rotating hole 51 is provided on the vertical plate 5. A rotating rod 10 and an adjusting screw 9 are rotatably connected in the rotating hole 51. The adjusting screw 9 is connected to the rotating rod 10, and the connection between the adjusting screw 9 and the rotating rod 10 is in the rotating hole 51. The adjusting screw 9 is threadedly connected to the threaded hole. Thus, when the adjusting screw 9 is rotated, the protrusion 8 moves on the adjusting screw 9, causing the pulley 6 to move inward and reduce the diameter of the pulley 6.

[0024] In order to control the other three sets of pulleys 6 to move inward or outward synchronously, a crown gear 12 is rotatably connected to the coupling 3, and a gear 11 is provided on the inner end face of the rotating rod 10. The gear 11 and the crown gear 12 mesh with each other, so that when one set of adjusting screws 9 is driven to rotate, the other three sets will rotate synchronously.

[0025] A through hole is provided on the base 1, and a hanging plate 13 is suspended inside the base 1. The hole on the hanging plate 13 is adapted to the through hole, and a hexagonal groove is provided on the outer end face of the adjusting screw 9. A tool is inserted into the through hole, passes through the hole, and is inserted into the hexagonal groove to drive the adjusting screw 9 to rotate.

[0026] The base 1 has a side hole, which makes it easy to replace and maintain the belt.

[0027] Mobile base: Support 14 is installed on base 1. Support 14 has a U-shaped cross section and slide plate 15 is slidably connected to the top surface of support 14. The top surface of support 14 is provided with a dovetail groove and the bottom surface of slide plate 15 is provided with a dovetail block. The dovetail groove and the dovetail block are adapted to each other to achieve limiting. In order to fix the positional relationship between slide plate 15 and support 14, bolts are threaded on slide plate 15 and insertion holes are provided on support 14. The insertion holes are adapted to the bolts. Motor 16 is provided on the top surface of slide plate 15. Drive wheel 17 is located below slide plate 15 and is driven by motor 16.

[0028] The working principle of this utility model is as follows: The tool is inserted through the hole on the base 1 and through the hole on the hanging plate 13 to support the tool. Then, the inner hexagon of the tool is inserted into the hexagonal groove of the adjusting screw 9. The adjusting screw 9 is then rotated. The adjusting screw 9 drives the protrusion 8 to move inward through the threaded section. The rotating adjusting screw 9 drives the rotating rod 10 connected to it to rotate in the rotating hole 51 of the upright plate 5. The gear 11 provided on the inner end face of the rotating rod 10 drives the other three sets of gears 11 to rotate through the crown gear 12, thereby realizing that the four sets of pulleys 6 move inward synchronously, thereby reducing the diameter of the pulleys 6 and slackening the originally taut belt. Then, the belt can be taken out through the side hole on the base 1 to complete the purpose of removing the belt.

[0029] At the same time, during installation, the connection between the support 14 and the slide plate 15 can be released by unscrewing the bolts on the movable base, so that the slide plate 15 can slide in the dovetail groove on the support 14 through the dovetail block, and the distance from the drive wheel 17 to the center of the pulley 6 can be reduced so that the belt can be installed more conveniently and quickly.

[0030] When a new belt needs to be installed after the equipment has been assembled and used, the new belt can be inserted through the side hole on the outer wall of the base 1. Using a tool, the belt can be fitted onto the bottom of the pulley. The belt replacement can be completed by reversing the above operation. The motor 16 drives the drive wheel 17 to rotate. Under the belt, the pulley 6 drives the coupling 3 to rotate through the base plate 4, which in turn drives the main shaft 2 to rotate, causing the entire equipment to start swaying.

[0031] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0032] Components not described in detail in this article are existing technologies.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A belt-driven structure for a screening machine, comprising a base (1) and a screen frame, a motor (16), and a drive wheel (17), wherein a set of main shafts (2) are provided on the inner bottom surface of the base (1), a pulley (6) is provided on the main shafts (2), a screen frame is provided on the base (1), and a motor (16) is also provided on the base (1), the drive shaft of the motor (16) is provided with the drive wheel (17), and the drive wheel (17) is connected to the pulley (6) by a belt, characterized in that: The base (1) is provided with a moving base, the motor (16) is installed on the moving base, and the belt pulley (6) is a split mechanism and is fixed on the main shaft (2) through an adjusting mechanism.

2. A belt drive structure for a screening machine according to claim 1, characterized in that: The belt pulley (6) is divided into four parts and arranged in an annular array.

3. A belt drive structure for a screening machine as claimed in claim 2, characterized in that: The adjusting mechanism comprises a vertical plate (5), a protrusion (8), an adjusting screw (9), a rotating rod (10), a gear (11) and a crown gear (12). The top surface of the belt pulley (6) is provided with a sliding hole (7), the bottom surface of the main shaft (2) is provided with a shaft coupling (3), the bottom surface of the shaft coupling (3) is provided with a bottom plate (4), the top surface of the bottom plate (4) is provided with a rectangular vertical plate (5), the vertical plate (5) is slidably connected with the sliding hole (7), a rotating hole (51) is arranged on the vertical plate (5), a protrusion (8) is arranged on the top surface of the belt pulley (6), a threaded hole is arranged on the protrusion (8), the rotating rod (10) is connected with the adjusting screw (9), the connecting position of the rotating rod (10) and the adjusting screw (9) is located in the rotating hole (51), the adjusting screw (9) is threadedly connected with the threaded hole, the inner end surface of the rotating rod (10) is provided with the gear (11), the crown gear (12) is rotatably connected to the outer wall of the shaft coupling (3), and the crown gear (12) is meshed with the gear (11). A hexagonal hole is arranged on the outer end surface of the adjusting screw (9).

4. A belt drive arrangement for a screening machine according to claim 3, characterised in that: The base (1) is provided with a perforation, the perforation corresponds to the position of the hexagonal hole support, and a hanging plate (13) is hung on the inner wall of the base (1), and the hole on the hanging plate (13) corresponds to the position of the hexagonal hole.

5. A belt drive structure for a screening machine as claimed in claim 3, wherein: The moving base comprises a support (14) and a sliding plate (15), the cross section of the support (14) is a U-shaped piece, the top surface of the support (14) is provided with the sliding plate (15), the top surface of the support (14) is provided with a dovetail groove, the bottom surface of the sliding plate (15) is provided with a dovetail block, the dovetail block is slidably connected with the dovetail groove, and the motor (16) is arranged on the sliding plate (15). The sliding plate (15) and the support (14) are positionally fixed through bolts.

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