Abstract

A rotary member combination device and a connecting shaft thereof are provided. The rotary member combination device includes at least a first rotary member and a second rotary member, and further includes a connecting shaft between the first rotary member and the second rotary member. At least one of the first rotary member or the second rotary member is connected to the connecting shaft by a spiral groove and a boss structure matching the spiral groove. For the connecting shaft used in the rotary member combination device, the connecting shaft is provided with a first boss or a third spiral groove matching the first rotary member of the rotary member combination device. Compared with the prior art, the connecting shaft provided in the present invention may connect two or more rotary members to implement a relative positional relationship of the two or more rotary members in a circumferential direction, an adjustment process does not require any state condition, and relative positions of the rotary members in the circumferential direction may be controlled in a stationary state or at any rotational speed. The control accuracy is high, the control mode is flexible, and a mode such as manual adjustment, electrical automatic control, hydraulic adjustment, or pneumatic adjustment may be implemented.

IPC Classes  ?

• B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses

Abstract

A vibration device belongs to the field of vibration machinery technologies, and includes an eccentric vibrator, a vibration motor, and a servo linear motion system. The eccentric vibrator includes at least a first eccentric body, a second eccentric body, and a connecting shaft. At least one of the first eccentric body or the second eccentric body is connected to the connecting shaft by a spiral groove and a boss structure matching the spiral groove. The servo linear motion system is connected to the connecting shaft. The servo linear motion system pushes the connecting shaft to move linearly, and drives the second eccentric body to rotate in a circumferential direction, and the first eccentric body remains stationary, so that adjustment of relative positions of the first eccentric body and the second eccentric body in the circumferential direction is implemented, and the purpose of controlling the magnitude of an exciting force in real time in a working process of equipment is implemented.

IPC Classes  ?

• B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses

Abstract

A vibration motor, relating to the technical field of vibration apparatuses, and comprising a motor. A right eccentric block is fixedly connected to a right shaft end of a motor shaft of the motor in the circumferential direction, a screw mandrel is arranged at a left shaft end of the motor shaft, and the screw mandrel is fixedly connected to the left shaft end of the motor shaft in the circumferential direction and movably connected in the axial direction; a screw cover is fixedly mounted on an end surface of a left eccentric block, and the screw mandrel is connected to the screw cover by means of a screw groove-boss structure. According to the vibration motor provided by the present invention, the screw mandrel is moved leftwards or rightwards in the axial direction, so that the screw cover is driven to rotate relative to the motor shaft in the axial direction, and the left eccentric block is driven to rotate relative to the motor shaft in the axial direction. Therefore, an included angle between the right eccentric block and the left eccentric block in the circumferential direction is changed, and the purpose of adjusting eccentricity and exciting force is achieved.

IPC Classes  ?

• B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
• H02K 7/075 - Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics

Abstract

A rotating member combination apparatus and a connecting shaft therefor. The rotating member combination apparatus comprises at least a first rotating member and a second rotating member, and further comprises a connecting shaft for the first rotating member and the second rotating member. At least one of the first rotating member and the second rotating member is connected to the connecting shaft by means of a spiral groove and a protrusion structure matching the spiral groove. A connecting shaft for the rotating member combination device, wherein the connecting shaft is provided with a first protrusion or a third spiral groove matching the first rotating member of the rotating member combination device. Compared with the prior art, the connecting shaft provided by the present invention can connect two or more rotating members, achieves the relative position relation of the two or more rotating members in the circumferential direction, does not require any state conditions in an adjustment process, can control the relative position of the rotating members in the circumferential direction in a static state or at any rotational speed, is high in control precision and flexible in control mode, and can achieve adjustment modes such as manual adjustment, electrical automatic control, hydraulic adjustment, or pneumatic adjustment.

IPC Classes  ?

• B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses

Abstract

A vibration exciter, relating to the technical field of vibration machinery. The vibration exciter comprises an eccentric vibrator, a vibration excitation box (6) for accommodating the eccentric vibrator, and a vibration excitation motor (8) for driving the eccentric vibrator to rotate, and further comprises a servo linear motion system (9) for adjusting the eccentric magnitude of the eccentric vibrator. The eccentric vibrator at least comprises a first eccentric body (1), a second eccentric body (2), and a connecting shaft (5), at least one of the first eccentric body (1) and the second eccentric body (2) is connected to the connecting shaft (5) by means of a spiral groove and a boss structure matching the spiral groove, and the servo linear motion system (9) is connected to the connecting shaft (5). According to the vibration exciter provided in the present invention, the magnitude of exciting force can be adjusted at a static state or any rotating speed.

IPC Classes  ?

• B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses

Abstract

The present invention relates to the technical field of vibration machines, and more particularly, relates to a vibration-exciting device, comprising: an eccentric vibrator; a vibration-exciting motor (8); and a linear servo motion system (9). The eccentric vibrator at least comprises a first eccentric member (1), a second eccentric member (2) and a connection shaft (5). At least one of the first eccentric member (1) and the second eccentric member (2) is connected to the connection shaft (5) by means of a spiraling recess and a protruding platform structure engaged at the spiraling recess. The linear servo motion system (9) is connected to the connection shaft (5). The linear servo motion system (9) pushes the connection shaft (5) to move linearly and drives the second eccentric member (2) to rotate in a circumferential direction, and the first eccentric member (1) remains at the same position, thereby realizing adjustment of relative positions of the first eccentric member (1) and the second eccentric member (2) in the circumferential direction, and accomplishing the objective of controlling, in real time, the magnitude of a vibration-exciting force of an apparatus in an operating state.

IPC Classes  ?

• B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses

Abstract

An eccentric vibrator, relating to the technical field of vibration machineries, and comprising an outer eccentric body (1) and an inner eccentric body (2). The outer eccentric body (1) has an inner circumferential surface. The inner eccentric body (2) has an outer circumferential surface. At least one first bearing (41) is provided between the inner circumferential surface and the outer circumferential surface. The gravity center of the inner eccentric body (2) and the gravity center of the outer eccentric body (1) both deviate from a rotation center formed by the first bearing (41). The outer eccentric body (1) is provided with a left bearing platform (10) which is coaxial to the first bearing (41), and a right end cover (3) is provided at the right side of the outer eccentric body (1) and the inner eccentric body (2). Compared with the prior art, the eccentric vibrator provided by the present invention can be used for adjusting the angle between the two eccentric bodies during rotation so as to adjust the excitation force and can also be used for adjusting the magnitude of the excitation force to zero in a dynamic state so as to reduce the load of a vibration exciter during start.

IPC Classes  ?

• B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses

Abstract

A vibrating screen apparatus, comprising a driving device (2), an eccentric shaft (12), an eccentric balance component (3), a vibrating screen (13), a servo linear motion system (8), and a spiral mandrel (9). The driving device is fixedly connected to the eccentric balance component and drives the eccentric balance component to rotate synchronously. An axis through hole is formed in the eccentric shaft. The spiral mandrel is fixed in a circumferential direction and is movably mounted in the axis through hole in the axial direction. A servo actuator (17) of the servo linear motion system is rotatably connected to the spiral mandrel in the circumferential direction and is fixedly connected in a radial direction. The eccentric balance component is connected to the spiral mandrel by means of a matching structure of a spiral groove and a convex block. The axial movement of the spiral mandrel drives the eccentric balance component to rotate with respect to the eccentric shaft in the circumferential direction so as to realize the circumferential angle adjustment of the eccentric shaft and the eccentric balance component, and thus the eccentricity and exciting force are adjusted.

IPC Classes  ?

• B07B 1/28 - Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting, or wobbling screens
• B06B 1/16 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
• B07B 1/42 - Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens