Vibrating screen driving assembly

Abstract

A vibrating screen driving assembly relates to the technical field of vibrating screens and comprises a driving device, a belt transmission device, a transition connecting device and an adjusting device, the belt transmission device comprises a first belt wheel, a second belt wheel and a first transmission belt, the first belt wheel is in transmission connection with the driving device, and the second belt wheel is in transmission connection with the transition connecting device. The second belt wheel is in transmission connection with the transition connecting device, the first transmission belt is used for being in transmission connection with the first belt wheel and the second belt wheel, the transition connecting device is further in transmission connection with the vibration exciter, and the vibration exciter is used for driving the vibrating screen to vibrate. The adjusting device is used for adjusting the distance between the first belt wheel and the second belt wheel so as to adjust the tension degree of the first transmission belt.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology, and in particular to a vibrating screen drive assembly. Background Technology

[0002] A vibrating screen is a mechanical device used for grading and screening materials. When it works, it relies on the excitation force generated by the vibrator. The vibrator can generate various vibration modes as needed, thereby driving the screen surface of the screen box to move along a predetermined trajectory, so that the material moves at high speed with a certain amplitude on the screen surface of the screen box, and finally completes the grading and screening of the material.

[0003] Currently, the most common power source for vibrators is the electric motor. Most vibrators use a direct drive system connected to the motor. This method is problematic because, firstly, it makes it difficult to adjust the vibration frequency to suit different material types, sizes, or grades. Secondly, the lack of damping, cushioning, and protection mechanisms results in a shorter expected lifespan for the motor, posing safety hazards. It also restricts the relative positions of the motor, vibrator, and vibrating screen, making the motor position non-adjustable and requiring high-precision foundation construction. Furthermore, this drive system often cannot adjust the vibrator's speed; adjusting the speed requires replacing the vibrator or motor, which can lead to inefficient equipment operation or overloading, resulting in poor versatility and low economic benefits. Summary of the Invention

[0004] This utility model provides a vibrating screen drive assembly that is easy to maintain and repair and has good versatility. It includes a drive unit, a belt drive unit, a transition connection unit, and an adjustment unit. The belt drive unit includes a first pulley, a second pulley, and a first drive belt. The first pulley is driveably connected to the drive unit, and the second pulley is driveably connected to the transition connection unit. The first drive belt drives the first pulley and the second pulley. The transition connection unit is also driveably connected to a vibrator, which drives the vibrating screen to vibrate. The adjustment unit adjusts the distance between the first pulley and the second pulley to adjust the tension of the first drive belt.

[0005] Furthermore, it also includes a first mounting plate and a second mounting plate fixed together as one unit. The adjusting device and the belt drive device are respectively mounted on the first mounting plate and the second mounting plate. The second mounting plate includes a first side and a second side opposite to the first side. The adjusting device is located on the first side of the second mounting plate, and the belt drive device is located on the second side of the second mounting plate.

[0006] Furthermore, the driving device includes a first motor and a first transmission shaft. One end of the first transmission shaft is connected to the first motor, and the other end of the first transmission shaft is connected to the first pulley. The first transmission shaft is used to output the power of the first motor to the first pulley. The adjusting device is connected to the first motor and can drive the first motor to move.

[0007] Furthermore, the first motor is disposed on the first side of the second mounting plate, the first drive shaft passes through the shaft hole on the second mounting plate, and the first pulley is disposed on the second side of the second mounting plate and connected to the first drive shaft through an expansion sleeve.

[0008] Furthermore, one end of the transition connection device is connected to the vibrator, and the other end of the transition connection device is connected to the second pulley. The transition connection device is used to output the power of the second pulley to the vibrator. The transition connection device passes through the shaft hole on the second mounting plate. The second pulley is disposed on the second side of the second mounting plate and is connected to the transition connection device through an expansion sleeve.

[0009] Furthermore, the transition connection device includes a first coupling, a bearing housing, and a second drive shaft. One end of the first coupling is connected to the vibrator, and the other end of the first coupling is connected to the bearing housing. One end of the second drive shaft is provided with a second pulley, and the other end of the second drive shaft is connected to the bearing housing. The bearing housing is disposed between the first coupling and the second drive shaft and is drivingly connected to both the first coupling and the second drive shaft. The first coupling is disposed on the first side of the second mounting plate.

[0010] Furthermore, it also includes a first protective shell and a second protective shell, the first protective shell being detachably fitted onto the belt drive device, and the second protective shell being fitted onto the transition connection device.

[0011] Furthermore, the adjustment device includes an adjusting rod and a fixed base. The adjusting rod is fixedly connected to the first motor. The adjusting rod is disposed on the fixed base and can slide relative to the fixed base. The adjusting rod can also be fixed to the fixed base when it slides to any position of the fixed base.

[0012] Furthermore, the vibrator includes a left excitation unit and a right excitation unit. Either the left excitation unit or the right excitation unit is connected to the transition connection device. The left excitation unit and the right excitation unit are connected to each other via a second coupling. The left excitation unit and the right excitation unit are used to drive the vibrating screen to vibrate from the left and right sides respectively.

[0013] Furthermore, it includes a first drive unit and a second drive unit. The first drive unit and the second drive unit respectively include the drive device, the belt drive device, the adjustment device and the transition connection device. The transition connection device in the first drive unit is arranged adjacent to the transition connection device in the second drive unit.

[0014] The vibrating screen drive assembly provided by this utility model achieves transmission ratio adjustment without replacing the control system, logic, or motor speed through a detachable and replaceable belt drive device. This makes operation quick and convenient, resulting in highly versatile and adaptable equipment. Furthermore, the utility model uses an adjustment device to adjust the relative position and distance between the first and second pulleys, facilitating later maintenance and upkeep. Finally, the utility model connects to the vibrator via a transition connection device, preventing power from being directly input to the vibrator after passing through the second pulley's belt drive, thus delaying the structural aging of the vibrator and belt drive device. Attached Figure Description

[0015] Figure 1 A schematic diagram of the vibrating screen drive assembly, exciter, and vibrating screen provided by this utility model.

[0016] Figure 2 This is a schematic diagram of the first driving unit and the second driving unit in this utility model. Detailed Implementation

[0017] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended purpose of the invention, the present utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0018] It should be noted that the terms "first," "second," "third," "fourth," etc., in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0019] Please see Figures 1 to 2The vibrating screen drive assembly provided by this utility model includes a first drive unit 10a and a second drive unit 10b. The first drive unit 10a and the second drive unit 10b are relatively independent and each contains the same components. They are arranged adjacent to each other on the same side of the screen box, below the vibrator 5. In this embodiment, the vibrator 5 includes a left vibrating unit 5a and a right vibrating unit 5b. The left vibrating unit 5a and the right vibrating unit 5b are used to drive the vibrating screen 6 to vibrate from the left and right sides respectively. The left vibrating unit 5a and the right vibrating unit 5b are connected by two second couplings 5c horizontally arranged above the screen box. The second couplings 5c are respectively covered with corresponding protective tubes. The first drive unit 10a and the second drive unit 10b are both located on the right side of the screen box, below the right vibrating unit 5b. They are connected to the right vibrating unit 5b, that is, they are used to provide power to the right vibrating unit 5b. The power is then transmitted to the left vibrating unit 5a through the second couplings 5c. It is readily understood that at least one of the left excitation unit 5a and the right excitation unit 5b in this invention can be connected and driven by the first drive unit 10a and the second drive unit 10b. Furthermore, to more clearly demonstrate the components and internal structure of the first drive unit 10a, the specification includes... Figure 1 and 2 The shielding and protective structures of the first drive unit 10a are partially omitted, but the shielding and protective structures of the second drive unit 10b are not omitted. The description will use the first drive unit 10a as an example to explain the vibrating screen drive assembly in this utility model in detail. Since the second drive unit 10b has the same components and structure as the first drive unit 10a, it will not be described again later.

[0020] Please refer to this carefully. Figure 2The vibrating screen drive assembly of this utility model includes a drive device 1, a belt drive device 2, a transition connection device 3, and an adjustment device 4. The belt drive device 2 includes a first pulley 21, a second pulley 22, and a first drive belt 23. The first pulley 21 is driven to the drive device 1, the second pulley 22 is driven to the transition connection device 3, and the first drive belt 23 is used to drive the first pulley 21 and the second pulley 22. The transition connection device 3 is also driven to the vibrator 5, which is used to drive the vibrating screen 6 to vibrate. The adjustment device 4 is used to adjust the distance between the first pulley 21 and the second pulley 22 to adjust the tension of the first drive belt 23. Specifically, in this embodiment, the first pulley 21 is detachably connected to the drive device 1, the second pulley 22 is detachably connected to the transition connection device 3, and the first transmission belt 23 is detachably mounted on the first pulley 21 and the second pulley 22. In other words, the belt drive device 2 is detachable and replaceable as a whole. The adjustment device 4 is fixedly connected to the drive device 1. That is, the adjustment device 4 can drive the drive device 1 to move, and the drive device 1 drives the first pulley 21 to move, thereby adjusting the distance between the first pulley 21 and the second pulley 22. For example, if the adjustment device 4 drives the first pulley 21 to move slightly away from the second pulley 22, the first transmission belt 23 is slightly tightened, achieving appropriate adjustment of its tension. If the adjustment device 4 drives the first pulley 21 to move closer to the second pulley 22, the first transmission belt 23 is loosened, and the loosened first transmission belt 23 can be easily removed by the worker. This invention achieves transmission ratio adjustment without replacing the control system, logic, or motor speed through a detachable and replaceable belt drive device 2, making operation quick and convenient and enhancing the versatility and adaptability of the equipment. Furthermore, the invention uses an adjustment device 4 to adjust the relative position and distance between the first pulley 21 and the second pulley 22, facilitating later maintenance and upkeep. Finally, the invention connects to the vibrator 5 via a transition connection device 3, preventing power from being directly input to the vibrator 5 after passing through the belt drive of the second pulley 22, thus delaying the structural aging of the vibrator 5 and the belt drive device 2.

[0021] Furthermore, the vibrating screen drive assembly of this utility model also includes a first mounting plate 71 and a second mounting plate 72 fixedly connected as one unit. The adjusting device 4 and the belt drive device 2 are respectively mounted on the first mounting plate 71 and the second mounting plate 72. The second mounting plate 72 includes a first side and a second side opposite to the first side. The adjusting device 4 is located on the first side of the second mounting plate 72, and the belt drive device 2 is located on the second side of the second mounting plate 72. Specifically, in this embodiment, the first mounting plate 71 and the second mounting plate 72 are arranged vertically in an "L" shape. The adjusting devices 4 are all located between the included angles formed by the two sides of the "L" shape formed by the first mounting plate 71 and the second mounting plate 72, which is the first side of the second mounting plate 72. The belt drive devices 2 are all located outside the vertical side of the "L" shape formed by the first mounting plate 71 and the second mounting plate 72, which is the second side of the second mounting plate 72. To simplify the overall structure of the vibrating screen drive assembly, in a preferred embodiment of this invention, a portion of the drive device 1 and a portion of the transition connection device 3 are located on the first side of the second mounting plate 72. The other portion of the drive device 1 and the other portion of the transition connection device 3, which are also the ends of the drive device 1 connected to the first pulley 21 and the transition connection device 3 connected to the second pulley 22, are located on the second side of the second mounting plate 72. That is, the drive device 1 and the transition connection device 3 pass through the second mounting plate 72. This arrangement of the adjustment device 4 and the belt drive device 2 allows the main body to be positioned above the first mounting plate 71 and on the same side of the second mounting plate 72, reducing the difficulty of initial installation and subsequent maintenance.

[0022] Furthermore, the driving device 1 in this utility model includes a first motor 11 and a first transmission shaft. One end of the first transmission shaft is connected to the first motor 11, and the other end of the first transmission shaft is connected to the first pulley 21. The first transmission shaft is used to output the power of the first motor 11 to the first pulley 21. The adjusting device 4 is connected to the first motor 11 and can drive the first motor 11 to move. Specifically, the first motor 11 is located above the first mounting plate 71 and on the first side of the second mounting plate 72. The first transmission shaft passes through the shaft hole on the second mounting plate 72, and the first pulley 21 is disposed on the second side of the second mounting plate 72 and connected to the first transmission shaft through the expansion sleeve 8.

[0023] Further, the transition connection device 3 in this utility model includes a first coupling 31, a bearing seat 32, and a second drive shaft. One end of the first coupling 31 is connected to the vibrator 5, and the other end of the first coupling 31 is connected to the bearing seat 32. One end of the second drive shaft is provided with a second pulley 22, and the other end of the second drive shaft is connected to the bearing seat 32. The bearing seat 32 is disposed between the first coupling 31 and the second drive shaft and is respectively connected to the first coupling 31 and the second drive shaft. The first coupling 31 is disposed on the first side of the second mounting plate 72. The transition connection device 3 is used to output the power of the second pulley 22 to the vibrator 5. Specifically, in this embodiment, the end of the transition connection device 3 connected to the vibrator 5 is the first coupling 31, and the end of the transition connection device 3 connected to the second pulley 22 is the second drive shaft. The second drive shaft passes through the shaft hole on the second mounting plate 72, and the second pulley 22 is disposed on the second side of the second mounting plate 72 and connected to the transition connection device 3 through an expansion sleeve 8. The transition connection device 3 in this utility model realizes the transition transmission through the first coupling 31 and the bearing in the bearing seat 32, avoiding the direct input of power to the vibrator 5 after the belt drive of the second pulley 22, thus delaying the structural aging of the vibrator 5 and the belt drive device 2.

[0024] Furthermore, the adjustment device 4 in this utility model includes an adjustment rod 41 and a fixed base 42. The adjustment rod 41 is fixedly connected to the first motor 11 as a whole. The adjustment rod 41 is disposed on the fixed base 42 and can slide relative to the fixed base 42. The adjustment rod 41 can also be relatively fastened to the fixed base 42 when it slides to any position of the fixed base 42. Specifically, in this embodiment, the fixed base 42 is integrally connected to the first mounting plate 71, the adjusting rod 41 is a threaded rod, and the fixed base 42 is provided with a slot for accommodating the adjusting rod 41 and allowing the adjusting rod 41 to move or stop within a certain range. The adjusting rod 41 can slide within the fixed base 42, and the adjusting rod 41 can also stop when it slides to any position relative to the fixed base 42 and be fixed relative to the fixed base 42 by the thread. That is, the adjusting rod 41 can adjust its relative positional relationship with the fixed base 42 through the threaded engagement. Since the first motor 11 in this utility model is integrally connected to the adjusting rod 41, and the fixed base 42 is integrally connected to the first mounting plate 71, adjusting the relative positional relationship of the adjusting rod 41 on the fixed base 42 is essentially adjusting the relative positional relationship between the first motor 11 and the first mounting plate 71, thereby adjusting the relative positional relationship and distance between the first pulley 21 and the second pulley 22. When actually adjusting the position of the adjusting rod 41 on the fixed base 42 in this utility model, a device such as a torque wrench can be used to achieve precise adjustment of the tension. This invention achieves the adjustment of the relative position and distance between the first pulley 21 and the second pulley 22 through the adjustable rod 41 and the fixed seat 42, which can slide and stop relative to each other. It occupies little space, is easy to adjust, and is easy to maintain later.

[0025] Furthermore, the vibrating screen drive assembly of this utility model also includes a first protective shell 91 and a second protective shell 92. The first protective shell 91 is detachably fitted outside the belt drive device 2, and the second protective shell 92 is fitted outside the transition connection device 3. It is easily understood that the first pulley 21, the second pulley 22, and the first transmission belt 23 in this utility model are all detachable structures. The first protective shell 91 is also detachably fitted outside the belt drive device 2. Therefore, when it is necessary to adjust the speed of the vibrator 5 to adapt to different material types, sizes, or categories, the first protective shell 91 can be removed first, and then the first pulley 21, the second pulley 22, or the first transmission belt 23 can be removed as needed. The removed parts can then be replaced as needed, thereby achieving transmission ratio adjustment without changing the control system, logic, or motor speed. In addition, to protect the first coupling 31, which rotates at high speed during operation, the first coupling 31 is fitted with a second protective shell 92, achieving dual protection for worker safety and equipment safety, and also delaying equipment aging.

[0026] In summary, the vibrating screen drive assembly of this utility model achieves transmission ratio adjustment without replacing the control system, logic, or motor speed through a detachable and replaceable belt drive device. This makes operation quick and convenient, resulting in highly versatile and adaptable equipment. Furthermore, the utility model uses an adjustment device to adjust the relative position and distance between the first and second pulleys, facilitating later maintenance and upkeep. Finally, the utility model connects to the vibrator via a transition connection device, preventing power from being directly input to the vibrator after passing through the second pulley's belt drive, thus delaying the structural aging of the vibrator and belt drive device.

[0027] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A vibrating screen drive assembly, characterized in that: The device includes a drive unit (1), a belt drive unit (2), a transition connection unit (3), and an adjustment unit (4). The belt drive unit (2) includes a first pulley (21), a second pulley (22), and a first drive belt (23). The first pulley (21) is driven to the drive unit (1), and the second pulley (22) is driven to the transition connection unit (3). The first drive belt (23) is used to drive the first pulley (21) and the second pulley (22). The transition connection unit (3) is also driven to the vibrator (5). The vibrator (5) is used to drive the vibrating screen (6) to vibrate. The adjustment unit (4) is used to adjust the distance between the first pulley (21) and the second pulley (22) to adjust the tension of the first drive belt (23).

2. The vibrating screen drive assembly as described in claim 1, characterized in that: It also includes a first mounting plate (71) and a second mounting plate (72) fixed together. The adjusting device (4) and the belt drive device (2) are respectively mounted on the first mounting plate (71) and the second mounting plate (72). The second mounting plate (72) includes a first side and a second side opposite to the first side. The adjusting device (4) is located on the first side of the second mounting plate (72), and the belt drive device (2) is located on the second side of the second mounting plate (72).

3. The vibrating screen drive assembly as described in claim 2, characterized in that: The drive device (1) includes a first motor (11) and a first transmission shaft. One end of the first transmission shaft is connected to the first motor (11), and the other end of the first transmission shaft is connected to the first pulley (21). The first transmission shaft is used to output the power of the first motor (11) to the first pulley (21). The adjustment device (4) is connected to the first motor (11) and can drive the first motor (11) to move.

4. The vibrating screen drive assembly as described in claim 3, characterized in that: The first motor (11) is disposed on the first side of the second mounting plate (72), the first drive shaft passes through the shaft hole on the second mounting plate (72), and the first pulley (21) is disposed on the second side of the second mounting plate (72) and is connected to the first drive shaft through the expansion sleeve (8).

5. The vibrating screen drive assembly as described in claim 2, characterized in that: One end of the transition connection device (3) is connected to the vibrator (5), and the other end of the transition connection device (3) is connected to the second pulley (22). The transition connection device (3) is used to output the power of the second pulley (22) to the vibrator (5). The transition connection device (3) passes through the shaft hole on the second mounting plate (72). The second pulley (22) is located on the second side of the second mounting plate (72) and is connected to the transition connection device (3) through the expansion sleeve (8).

6. The vibrating screen drive assembly as described in claim 5, characterized in that: The transition connection device (3) includes a first coupling (31), a bearing housing (32), and a second drive shaft. One end of the first coupling (31) is connected to the vibrator (5), and the other end of the first coupling (31) is connected to the bearing housing (32). One end of the second drive shaft is provided with a second pulley (22), and the other end of the second drive shaft is connected to the bearing housing (32). The bearing housing (32) is located between the first coupling (31) and the second drive shaft and is connected to the first coupling (31) and the second drive shaft respectively. The first coupling (31) is located on the first side of the second mounting plate (72).

7. The vibrating screen drive assembly as described in claim 5, characterized in that: It also includes a first protective shell (91) and a second protective shell (92), the first protective shell (91) being detachably fitted outside the belt drive device (2), and the second protective shell (92) being fitted outside the transition connection device (3).

8. The vibrating screen drive assembly as described in claim 3, characterized in that: The adjustment device (4) includes an adjustment rod (41) and a fixed base (42). The adjustment rod (41) is fixedly connected to the first motor (11). The adjustment rod (41) is disposed on the fixed base (42) and can slide relative to the fixed base (42). The adjustment rod (41) can also be fixed to the fixed base (42) when it slides to any position of the fixed base (42).

9. The vibrating screen drive assembly as described in claim 1, characterized in that: The vibrator (5) includes a left vibrating unit (5a) and a right vibrating unit (5b). Either the left vibrating unit (5a) or the right vibrating unit (5b) is connected to the transition connection device (3). The left vibrating unit (5a) and the right vibrating unit (5b) are connected to each other through a second coupling (5c). The left vibrating unit (5a) and the right vibrating unit (5b) are used to drive the vibrating screen (6) to vibrate from the left and right sides respectively.

10. The vibrating screen drive assembly as described in claim 1, characterized in that: It includes a first drive unit (10a) and a second drive unit (10b). The first drive unit (10a) and the second drive unit (10b) respectively include the drive device (1), the belt drive device (2), the adjustment device (4) and the transition connection device (3). The transition connection device (3) in the first drive unit (10a) and the transition connection device (3) in the second drive unit (10b) are arranged adjacent to each other.

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