WO2021027557A1 - 一种激振器 - Google Patents

一种激振器 Download PDF

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Publication number
WO2021027557A1
WO2021027557A1 PCT/CN2020/105177 CN2020105177W WO2021027557A1 WO 2021027557 A1 WO2021027557 A1 WO 2021027557A1 CN 2020105177 W CN2020105177 W CN 2020105177W WO 2021027557 A1 WO2021027557 A1 WO 2021027557A1
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WIPO (PCT)
Prior art keywords
eccentric body
bearing
linear motion
motion system
shaft
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PCT/CN2020/105177
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English (en)
French (fr)
Inventor
王阳
刘秀娟
赵志明
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济南豪特创新管理咨询合伙企业(有限合伙)
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Publication of WO2021027557A1 publication Critical patent/WO2021027557A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses

Definitions

  • the invention belongs to the technical field of vibration machinery, and specifically relates to a vibration exciter installed on a vibration machinery device.
  • Vibration exciter is a device installed on vibrating mechanical equipment to generate exciting force. It is the main component of vibrating machinery and plays a decisive role in the way of mechanical vibration. Vibration machines equipped with vibration exciters are widely used in metallurgical mines, industrial production, engineering construction, and experimental equipment industries to achieve object screening, transportation, compaction, vibration aging, and molding.
  • the existing mechanical vibration exciter is mainly composed of a motor and an eccentric vibrator, and the motor drives the eccentric vibrator to move to generate mechanical vibration. This kind of vibration exciter can only control the vibration frequency by controlling the speed of the excitation motor, and it is not easy to perform amplitude control (exciting force control).
  • the single step of adjusting the eccentricity includes the steps of loosening the eccentric set screw, adjusting the eccentricity, and tightening the eccentric set screw.
  • the adjustment accuracy is poor, and the eccentricity adjusted when stationary is difficult to achieve the optimal excitation force parameter during work, and it can only be "close” or "almost", and the excitation force cannot be dynamically adjusted during work.
  • Another disadvantage of the traditional vibration exciter is that when the workpiece requires a large excitation force, it must be adjusted to a large eccentricity when stopping. When the excitation motor is started under a large eccentricity, due to the large starting load, the current of the excitation motor increases, and it is easy to burn electrical components or damage the motor.
  • the present invention provides a vibration exciter that can control the magnitude of the excitation force in real time during the working process of the equipment.
  • a vibration exciter includes an eccentric vibrator, an excitation box (6) for accommodating the eccentric vibrator, an excitation motor (8) for driving the eccentric vibrator to rotate, and a servo linear motion for adjusting the eccentricity of the eccentric vibrator System (9).
  • the excitation motor (8) is fixedly connected with the excitation box (6); the servo linear motion system (9) is fixedly connected with the excitation box (6).
  • the eccentric vibrator includes at least 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)
  • the connecting shaft (5) is connected with the spiral groove and the boss structure matched with the spiral groove, and the servo linear motion system (9) is connected with the connecting shaft (5).
  • the first structure of the eccentric vibrator is: the first eccentric body (1) and the second eccentric body (2) are arranged side by side in the left-right direction, and the first eccentric body (1) is a left eccentric body, so The second eccentric body (2) is a right eccentric body, and the centers of gravity of the second eccentric body (2) and the first eccentric body (1) deviate from the center of rotation formed by the connecting shaft (5);
  • the first eccentric body (1) is fixedly connected to the output shaft of the excitation motor (8), and the servo linear motion system (9) is fixedly connected to the connecting shaft (5) in the axial direction and rotates in the circumferential direction of the surface connection.
  • the first eccentric body (1) is connected to the connecting shaft (5) through a linear groove and a boss structure that matches with the linear groove; the second eccentric body (2) is connected to the connecting shaft (5) through a spiral groove and The boss structure matched with the spiral groove is connected with the connecting shaft (5).
  • the first eccentric body (1) is provided with a left shaft table (10), and the left shaft table (10) is provided with a first shaft hole (11).
  • the output shaft of the excitation motor (8) is fixed to the left part of the first shaft hole (11) through a key groove.
  • first linear groove (52) is provided with a first linear groove (52), and the right part of the first shaft hole (11) is provided with a first linear groove (52).
  • a first spiral groove (51) is provided on the right side of the connecting shaft (5), a second shaft hole (21) is provided in the second eccentric body (2), and a second shaft hole (21) is provided in the second shaft hole (21).
  • a second linear groove is provided in the first shaft hole (11), and a third boss is provided on the left side of the connecting shaft (5) to cooperate with the second linear groove; the second shaft A second spiral groove is arranged in the hole (2), and a fourth boss matched with the second spiral groove is arranged on the right side of the connecting shaft (5).
  • the number of the third bosses can be one or more.
  • the number of the platform may be one or more.
  • a first through hole is opened at the connection between the excitation box (6) and the excitation motor (8), and the output shaft of the excitation motor (8) passes through the first through hole and is fixed in Inside the first shaft hole (11) of the left eccentric body left pillow block (10); a third bearing (14) is provided between the outer peripheral surface of the left pillow block (10) and the first through hole, the The inner ring of the third bearing (14) is fixedly connected with the outer peripheral surface of the left pillow block (10), and the outer ring of the third bearing (14) is fixedly connected with the inner surface of the first through hole.
  • excitation box (6) is provided with an excitation box cover (7)
  • excitation box cover (7) is provided with an excitation box cover through hole (71).
  • a right pillow block (20) is provided on the right side of the right eccentric body, and a fourth bearing (141) is provided between the right pillow block (20) and the through hole (71) of the excitation box cover.
  • the right eccentric body is provided with at least a section of a first outer circumferential surface, and a first bearing (41) is arranged between the first outer circumferential surface and the excitation box (6).
  • the left eccentric body is provided with at least a section of a second outer circumferential surface, and a second bearing (42) is arranged between the second outer circumferential surface and the inner surface of the excitation box (6).
  • the right part of the first circumferential surface of the right eccentric body is provided with a second bearing in a direction away from the axis.
  • a step (220) a second step (120) is provided on the left side of the second circumferential surface of the left eccentric body in a direction away from the axis, and the left side of the inner surface of the excitation box (6) is away from the axis
  • a left step surface (61) is provided in the direction of the second bearing (42), the outer ring of the second bearing (42) abuts on the left step surface (61), and the inner ring of the second bearing (42) abuts on the On the second step (120);
  • a convex edge (73) is provided on the left side of the excitation box cover (7), and the outer ring of the first bearing (41) abuts on the convex edge (73), The inner ring of the first bearing (41) abuts on the first step (220); a support ring
  • the servo linear motion system (9) is fixedly connected with the excitation box cover (7).
  • the actuator of the servo linear motion system (91) is connected to one end of the connecting shaft (5) through a fifth bearing (15), and the outer ring of the fifth bearing (15) is connected to the actuator of the servo linear motion system (91)
  • the through hole is fixedly connected with an elastic ring (17); the inner ring of the fifth bearing (15) and the connecting shaft (5) are fixedly connected with the shaft elastic ring (16).
  • the servo linear motion system (9) is fixedly connected to the excitation box cover (7), wherein a specific connection method is: the excitation box cover (7) is in the through hole of the excitation box cover (71) A flange (72) is provided on the periphery, and the servo linear motion system (9) is fixedly connected with the flange (72).
  • the servo linear motion system (9) is provided with a servo linear motion system seat (13), and the servo linear motion system seat (13) is fixed to the excitation box cover (7) Connection; the excitation box cover through hole (71) is located in the center of the connection between the excitation box cover (7) and the servo linear motion system seat (13).
  • the servo linear motion system seat (13) is provided with a servo linear motion system seat through hole (131), and the servo linear motion system actuator (91) of the servo linear motion system (9) passes through the servo linear motion system
  • the seat through hole (131) is connected with one end of the connecting shaft (5) through a fifth bearing (15).
  • the servo linear motion system actuator (91) of the servo linear motion system (9) is connected to the connecting shaft (5) through a fifth bearing (15).
  • the servo linear motion system (9) controls the axial position of the servo linear motion system actuator (91), and can lock the position at any position within the stroke range.
  • a shaft hole (92) is opened at the end of the servo linear motion system actuator (91) of the servo linear motion system (9), and the connecting shaft (5) passes through the shaft hole (92) and then passes through the fifth
  • the bearing (15) is connected to the linear motion system actuator (91), and the outer ring of the fifth bearing (15) and the shaft hole (92) are fixedly connected through the hole with an elastic ring (17); the fifth The inner ring of the bearing (15) is fixedly connected with the connecting shaft (5) through a shaft elastic retaining ring (16).
  • the servo linear motion system (9) can be a hydraulic cylinder, an air cylinder and a servo linear motor or other servo linear motion systems; correspondingly, the servo linear motion system actuators (91) are hydraulic rods, cylinder rods and screw rods, respectively or other.
  • the servo linear motion system (9) is a servo linear motor
  • the servo linear motion system actuator (91) is a screw.
  • the output shaft of the excitation motor (8) drives The first eccentric body (1) rotates, the first eccentric body (1) drives the connecting shaft (5) to rotate synchronously, and the connecting shaft (5) drives the second eccentric body (2) to rotate synchronously Finally, the synchronous rotation of the first eccentric body (1) and the second eccentric body (2) is realized. That is, the excitation motor (8) drives the entire eccentric vibrator to rotate synchronously to generate an excitation force.
  • the servo linear motion system actuator (91) moves synchronously with the connecting shaft (5) in the axial direction, but remains stationary in the radial direction and does not interact with all
  • the synchronous rotation of the connecting shaft (5) prevents the excitation motor (8) from transmitting the rotation to the actuator (91) of the servo linear motion system through the rotating shaft (5).
  • the servo linear motion system (9) is controlled to make the servo linear motion system actuator (91) axially to the left or right In linear motion, the servo linear motion system actuator (91) drives the connecting shaft (5) to move axially linearly, and drives the second eccentric body (2) to relatively rotate in the circumferential direction, thereby adjusting the first eccentricity
  • the relative included angle between the body (1) and the second eccentric body (2) achieves the purpose of adjusting the excitation force.
  • the second structure of the eccentric vibrator is: the first eccentric body (1) and the second eccentric body (2) are arranged in the inner and outer directions, the first eccentric body (1) is an outer eccentric body, and the The second eccentric body (2) is an inner eccentric body, the outer eccentric body has an inner circumferential surface, the inner eccentric body has an outer circumferential surface, the inner circumferential surface of the outer eccentric body and the outer circumference of the inner eccentric body At least one first bearing (41) is arranged between the surfaces; the centers of gravity of the second eccentric body (2) and the first eccentric body (1) are both deviated from the center of rotation formed by the connecting shaft (5).
  • the second eccentric body and the connecting shaft (5) are connected by a spiral groove and a boss structure matched with the spiral groove; the first eccentric body and the connecting shaft (5) are connected by a linear groove It is connected with the boss structure matched with the linear groove; the servo linear motion system (9) is fixedly connected with the connecting shaft (5) in the axial direction and rotatably connected in the surface circumferential direction.
  • a shaft hole (92) is opened at the end of the servo linear motion system actuator (91) of the servo linear motion system (9), and the connecting shaft (5) passes through the shaft hole (92) and then passes through the fifth
  • the bearing (15) is connected to the linear motion system actuator (91), and the outer ring of the fifth bearing (15) and the shaft hole (92) are fixedly connected through the hole with an elastic ring (17); the fifth The inner ring of the bearing (15) is fixedly connected with the connecting shaft (5) through a shaft elastic retaining ring (16).
  • the servo linear motion system (9) may be a hydraulic cylinder, an air cylinder or a servo linear motor, and correspondingly, the servo linear motion system actuator (91) is a hydraulic rod, a cylinder rod or a screw.
  • the second eccentric body (2) is provided with a second shaft hole (21) coaxial with the first bearing (41); the connecting shaft (5) and the second shaft hole ( 21)
  • the spiral groove is connected with the boss structure matched with the spiral groove.
  • a right end cover (3) is provided on the right side of the first eccentric body (1) and the second eccentric body (2), and the right end cover (3) is fixed to the first eccentric body (1) Connection; the right end cover (3) is in close contact with the right side of the outer ring of the first bearing (41); the right end cover (3) is provided with a coaxial connection with the first bearing (41)
  • a third shaft hole (31); the connecting shaft (5) and the third shaft hole (31) are connected by a linear groove and a boss structure matched with the linear groove.
  • a first through hole is opened at the connection between the excitation box (6) and the excitation motor (8), and the output shaft of the excitation motor (8) passes through the first through hole and is fixed in
  • the first eccentric body (1) is in the first shaft hole (11) of the left pillow block (10); a third bearing (14) is provided between the outer peripheral surface of the left pillow block (10) and the first through hole ).
  • the output shaft of the excitation motor (8) is fixed in the first shaft hole (11) of the left pillow block (10) of the first eccentric body (1) through a key groove.
  • the excitation box (6) is provided with an excitation box cover (7)
  • the servo linear motion system (9) is fixedly connected with the excitation box cover (7)
  • the excitation box cover ( 7) Opening a through hole (71) of the excitation box cover.
  • the actuator of the servo linear motion system (91) is connected to one end of the connecting shaft (5) through a fifth bearing (15), and the outer ring of the fifth bearing (15) is connected to the actuator of the servo linear motion system (91)
  • the through hole is fixedly connected with an elastic ring (17); the inner ring of the fifth bearing (15) and the connecting shaft (5) are fixedly connected with the shaft elastic ring (16).
  • the servo linear motion system (9) is fixedly connected to the excitation box cover (7), wherein a specific connection method is: the excitation box cover (7) is in the through hole of the excitation box cover (71) A flange (72) is provided on the periphery, and the servo linear motion system (9) is fixedly connected with the flange (72).
  • the servo linear motion system (9) is provided with a servo linear motion system seat (13), and the servo linear motion system seat (13) is fixed to the excitation box cover (7) Connection; the excitation box cover through hole (71) is located in the center of the connection between the excitation box cover (7) and the servo linear motion system seat (13).
  • the servo linear motion system seat (13) is provided with a servo linear motion system seat through hole (131), and the servo linear motion system actuator (91) of the servo linear motion system (9) passes through the servo linear motion system
  • the seat through hole (131) is connected with one end of the connecting shaft (5) through a fifth bearing (15).
  • a right end cover pillow block (34) is provided on the right side of the third shaft hole (31) coaxial with the first bearing (41) and the right end cover pillow block (34).
  • a fourth bearing (141) is arranged between) and the through hole 71 of the excitation box cover.
  • a shaft hole (92) is opened at the end of the servo linear motion system actuator (91) of the servo linear motion system (9), and the connecting shaft (5) passes through the shaft hole (92) and then passes through the fifth
  • the bearing (15) is connected with the linear motion system actuator (91), and the outer ring of the fifth bearing (15) is fixedly connected with the hole of the servo linear motion system actuator (91) with an elastic ring (17) ;
  • the inner ring of the fifth bearing (15) and the connecting shaft (5) are fixedly connected by a shaft with an elastic ring (16).
  • the inner circumferential surface of the first eccentric body (1) is provided with a first inner step surface (12) in a direction away from the shaft center, and the outer circumferential surface of the second eccentric body (2) is close to the shaft
  • a first outer step surface (22) is provided in the direction of the center, the first inner step surface (12) and the first outer step surface (22) form a first step surface, and the first bearing (41)
  • the left side surfaces of the inner and outer rings are located on the first step surface.
  • a retaining ring (25) is provided on the outer circumferential surface of the second eccentric body (2), and the retaining ring (25) is located on the right side of the inner ring of the first bearing (41).
  • the ring (25) is fixedly connected with the second eccentric body (2).
  • Another solution is to provide a second bearing (42) between the first eccentric body (1) and the second eccentric body (2), and the inner circumference of the first eccentric body (1)
  • the surface is provided with a first inner step surface (12) in the direction away from the shaft center, and a convex ring (23) is provided in the middle position of the outer circumferential surface of the second eccentric body (2) in the direction away from the shaft center
  • a space for accommodating the second bearing (42) is formed between the left step surface of the convex ring (23) and the first inner step surface (12), and the right step of the convex ring (23)
  • a space for accommodating the first bearing (41) is formed between the surface and the pressure ring (32) of the right end cover (3).
  • a support ring (43) is provided between the outer ring of the first bearing (41) and the outer ring of the second bearing (42).
  • the connecting shaft (5) is sequentially provided with a first spiral groove (51) and a first linear groove (52) from left to right; the second shaft hole (52) of the second eccentric body (2) 21)
  • the inner wall is provided with a first boss (24) that cooperates with the first spiral groove (51); the inner wall of the third shaft hole (31) of the right end cover (3) is provided with the first straight concave
  • the groove (52) matches the second boss (33).
  • the preferred solution is that there are at least two first bosses (24), which are arranged on the track line matching the first spiral groove (51); the second bosses (33) have at least two One is arranged on a track line matching with the first linear groove (52).
  • the inner wall of the second shaft hole (21) of the second eccentric body (2) is provided with a second spiral groove;
  • the third shaft hole (31) of the right end cover (3) is provided with a second Linear groove;
  • the connecting shaft (5) is provided with a third boss that is matched with the second spiral groove and a fourth boss that is matched with the second linear groove from left to right.
  • a preferred solution is that there are at least two third bosses, which are arranged on the track line matching the second spiral groove; there are at least two fourth bosses, which are arranged on the second spiral groove.
  • the track line where the straight groove fits.
  • the output shaft of the excitation motor (8) drives The first eccentric body (1) rotates, the first eccentric body (1) drives the right end cover (3) to rotate synchronously, and the right end cover (3) drives the connecting shaft (5) to rotate synchronously, so The connecting shaft (5) drives the second eccentric body (2) to rotate synchronously, and finally realizes the synchronous rotation of the first eccentric body (1) and the second eccentric body (2). That is, the excitation motor (8) drives the entire eccentric vibrator to rotate synchronously to generate an excitation force.
  • the servo linear motion system actuator (91) moves synchronously with the connecting shaft (5) in the axial direction, but remains stationary in the radial direction and does not interact with the connecting shaft (5).
  • Synchronous rotation prevents the excitation motor (8) from transmitting the rotation to the actuator (91) of the servo linear motion system through the rotating shaft (5).
  • the servo linear motion system (9) is controlled to make the servo linear motion system actuator (91) axially to the left or right In linear motion, the servo linear motion system actuator (91) drives the connecting shaft (5) to move axially linearly, and drives the second eccentric body (2) to relatively rotate in the circumferential direction, thereby adjusting the first eccentricity
  • the relative included angle between the body (1) and the second eccentric body (2) achieves the purpose of adjusting the excitation force.
  • the vibration exciter provided by the present invention can adjust the eccentricity at any rotation speed, that is, adjust the excitation force.
  • the exciter is adjusted to the minimum eccentricity at startup, and after the startup reaches the set speed, the eccentricity is adjusted to the set value, which effectively protects the electrical components and the excitation motor and avoids damage due to excessive current.
  • Adjusting the size of the exciting force during the work of the vibration equipment can more accurately control the parameters.
  • the adjustment of the entire excitation force with electrical control will become simple and convenient, and it is more suitable for automatic control of the entire vibration process.
  • Fig. 1 is a schematic diagram of an exploded structure of a vibration exciter in Embodiment 1 of the present invention
  • FIG. 2 is a schematic diagram of the assembly structure of a vibration exciter according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic diagram of the structure of an eccentric vibrator arranged on the left and right sides of the exciter of the present invention
  • Figure 4 is a schematic structural diagram of the third embodiment of the present invention.
  • Fig. 5 is a schematic diagram of an exploded structure of a vibration exciter in Embodiment 4 of the present invention.
  • FIG. 6 is a schematic diagram of the assembly structure of a vibration exciter in Embodiment 4 of the present invention.
  • FIG. 7 is a schematic diagram of an exploded structure of a vibration exciter according to Embodiment 5 of the present invention.
  • FIG. 8 is a schematic diagram of an assembly structure of a vibration exciter in Embodiment 5 of the present invention.
  • FIG. 9 is a schematic diagram of the structure of an eccentric vibrator arranged inside and outside of the exciter of the present invention.
  • Fig. 10 is a schematic structural diagram of another eccentric vibrator arranged inside and outside of the exciter of the present invention.
  • the first eccentric body 10 the left axis platform 11, the first axis hole 111, the linear boss 12, the first inner step surface 120, the second step 13, the servo linear motion system seat 131, the servo linear motion system seat Through hole 14, third bearing 141, fourth bearing 15, fifth bearing 16, shaft circlip 17, hole circlip 2, second eccentric body 20, right shaft base 21, second shaft hole 22, First outer step surface 220, first step 23, raised ring 24, first boss 25, retaining ring 3, right end cover 31, third shaft hole 32, pressure ring 33, third boss 34, right end cover shaft base 41.
  • a vibration exciter includes an eccentric vibrator, an excitation box 6 for accommodating the eccentric vibrator, an excitation motor 8 for driving the eccentric vibrator to rotate, and also includes an eccentric vibrator for adjusting the eccentricity
  • the eccentric vibrator includes a first eccentric body 1, a second eccentric body 2 and a connecting shaft 5.
  • the first eccentric body 1 and the second eccentric body 2 are arranged side by side in the left-right direction, the first eccentric body 1 is a left eccentric body, the second eccentric body 2 is a right eccentric body, and the second eccentric body 2 and the center of gravity of the first eccentric body 1 deviate from the center of rotation formed by the connecting shaft 5.
  • the first eccentric body 1 is provided with a left shaft base 10, and the left shaft base 10 is provided with a first shaft hole 11.
  • the output shaft of the excitation motor 8 is fixed to the left part of the first shaft hole 11 through a key groove.
  • a first linear groove 52 is provided on the left side of the connecting shaft 5, and a linear boss that cooperates with the first linear groove 52 is provided on the right side of the first shaft hole 11 111.
  • a first spiral groove 51 is provided on the right side of the connecting shaft 5, a second shaft hole 21 is provided in the second eccentric body 2, and a second shaft hole 21 is provided in the second shaft hole 21 to cooperate with the first spiral groove 51 The first boss 24.
  • a first through hole is opened at the connection between the excitation box 6 and the excitation motor 8, and the output shaft of the excitation motor 8 passes through the first through hole and is fixed in a key groove.
  • a third bearing 14 is provided between the outer circumferential surface of the left pillow block 10 and the first through hole, and the inner ring of the third bearing 14 is connected to The outer peripheral surface of the left pillow block 10 is fixedly connected, and the outer ring of the third bearing 14 is fixedly connected to the inner surface of the first through hole.
  • the excitation box 6 is provided with an excitation box cover 7, and the excitation box cover 7 is provided with an excitation box cover through hole 71.
  • a right pillow block 20 is provided on the right side of the right eccentric body, and a fourth bearing 141 is provided between the right pillow block 20 and the through hole 71 of the excitation box cover.
  • the right eccentric body is provided with at least a first outer circumferential surface, and a first bearing 41 is arranged between the first outer circumferential surface and the excitation box 6.
  • the left eccentric body is provided with at least a section of a second outer circumferential surface, and a second bearing 42 is arranged between the second outer circumferential surface and the inner surface of the excitation box 6.
  • a first step is provided on the right side of the first outer circumferential surface of the right eccentric body in a direction away from the shaft center. 220, the left side of the second outer circumferential surface of the left eccentric body is provided with a second step surface 120 in a direction away from the axis. As shown in FIG. 2, the left side of the inner surface of the excitation box 6 is away from the axis.
  • a left step surface 61 is provided in the direction of, the outer ring of the second bearing 42 abuts on the left step surface 61, and the inner ring of the second bearing 42 abuts on the second step surface 220;
  • a convex edge 73 is provided on the left side of the excitation box cover 7, the outer ring of the first bearing 41 abuts against the convex edge 73, and the inner ring of the first bearing 41 abuts against the first step 220; the first bearing 41 and the second bearing 42 between the outer ring set a support ring 43.
  • the excitation box cover 7 is provided with a flange 72 around the through hole 71 of the excitation box cover, and the servo linear motion system 9 is fixedly connected to the flange 72.
  • the servo linear motion system 9 is a servo linear motor, and the servo linear motion system actuator 91 is a screw.
  • a shaft hole 92 is formed at the end of the screw, and the connecting shaft 5 passes through the shaft hole 92 and is connected to the linear motion system actuator 91 through the fifth bearing 15.
  • the outer ring of the fifth bearing 15 and the shaft hole 92 are fixedly connected by a snap ring 17; the inner ring of the fifth bearing 15 and the connecting shaft 5 are fixedly connected by a snap ring 16 for shafts.
  • the servo linear motion system 9 controls the axial position of the actuator 91 of the servo linear motion system, and can lock the position at any position within the stroke range.
  • the left side of the connecting shaft 5 is provided with a third boss that cooperates with the second linear groove; the second shaft hole 21 is provided with a second spiral groove, and the right side of the connecting shaft 5 is provided with a The fourth boss is matched with the second spiral groove.
  • this embodiment provides another specific way of connecting the servo linear motion system 9 and the connecting shaft 5.
  • the servo linear motion system 9 is provided with a servo linear motion system seat 13, and the servo linear motion system seat 13 is fixedly connected to the excitation box cover 7; the excitation box cover through hole 71 Located at the center of the connection between the excitation box cover 7 and the servo linear motion system seat 13.
  • the servo linear motion system seat 13 is provided with a servo linear motion system seat through hole 131, and the servo linear motion system actuator 91 of the servo linear motion system 9 passes through the servo linear motion system seat through hole 131 and then interacts with the One end of the connecting shaft 5 is connected by a fifth bearing 15.
  • a vibration exciter includes an eccentric vibrator, an excitation box 6 for accommodating the eccentric vibrator, an excitation motor 8 for driving the eccentric vibrator to rotate, and an eccentricity adjustment Servo linear motion system 9 with the eccentricity of the vibrator.
  • the eccentric vibrator includes a first eccentric body 1, a second eccentric body 2 and a connecting shaft 5.
  • the first eccentric body 1 and the second eccentric body 2 are arranged in the inner and outer directions, and the first eccentric body 1 is outer Eccentric body, the second eccentric body 2 is an inner eccentric body, the outer eccentric body has an inner circumferential surface, the inner eccentric body has an outer circumferential surface, the inner circumferential surface of the outer eccentric body and the inner eccentric body
  • a first bearing 41 and a second bearing 42 are arranged between the outer circumferential surface of the shaft; the center of gravity of the inner eccentric body and the outer eccentric body are both deviated from the center of rotation formed by the connecting shaft 5.
  • the inner circumferential surface of the first eccentric body 1 is provided with a first inner step surface 12 in a direction away from the axis, and the middle position of the outer circumferential surface of the second eccentric body 2 is in a direction away from the axis
  • a convex ring 23 is provided on the convex ring 23, a space for accommodating the second bearing 42 is formed between the left step surface of the convex ring 23 and the first inner step surface 12, and the right step surface of the convex ring 23 is A space for accommodating the first bearing 41 is formed between the pressure rings 32 of the right end cover 3.
  • a support ring 43 is provided between the outer ring of the first bearing 41 and the outer ring of the second bearing 42.
  • a convex pressure ring 32 is provided on the left side of the right end cover 3, and the pressure ring 32 abuts against the right side of the outer ring of the first bearing 41.
  • the left side of the first eccentric body 1 is provided with a left shaft base 10 coaxial with the first bearing 41, and the left shaft stand 10 is provided with a first shaft hole coaxial with the first bearing 41 11.
  • the second eccentric body 2 is provided with a second shaft hole 21 coaxial with the first bearing 41.
  • the right end cover 3 is provided with a third shaft hole 31 coaxial with the first bearing 41.
  • the connecting shaft 5 is provided with a first spiral groove 51 and a first linear groove 52 in sequence from left to right; the inner wall of the second shaft hole 21 is provided with a first boss that cooperates with the first spiral groove 51 24; The inner wall of the third shaft hole 31 is provided with a second boss 33 matching the first linear groove 52.
  • first bosses 24 which are arranged on the track line matching the first spiral groove 51; there are two second bosses 33, which are arranged on the first linear groove. 52 match on the trajectory line.
  • the excitation motor 8 is fixedly connected to the excitation box 6.
  • a first through hole is opened at the connection between the excitation box 6 and the excitation motor 8, and the output shaft of the excitation motor 8 passes through the first through hole and is fixed on the left shaft of the first eccentric body 1.
  • a third bearing 14 is provided between the outer peripheral surface of the left shaft table 10 and the first through hole.
  • the excitation box 6 is provided with an excitation box cover 7, the servo linear motion system 9 is fixedly connected with the excitation box cover 7; the center of the excitation box cover 7 is provided with an excitation box cover through hole 71.
  • the excitation box cover 7 is provided with a flange 72 around the through hole 71 of the excitation box cover, and the servo linear motion system 9 is fixedly connected to the flange 72.
  • the right end cover 3 is provided with a right end cover pillow block 34 on the right side of the third shaft hole 31 coaxial with the first bearing 41, between the right end cover pillow block 34 and the excitation box cover through hole 71
  • the fourth bearing 141 is provided.
  • the excitation box cover 7 is provided with a through hole 71 of the excitation box cover, and the servo linear motion system 9 may be a hydraulic cylinder, an air cylinder, or a servo linear motor. In this embodiment, a servo linear motor is used.
  • the servo linear motor actuator 91 is a screw.
  • the screw of the servo linear motor actuator 91 passes through the through hole 71 of the excitation box cover and is connected to one end of the connecting shaft 5 through a fifth bearing 15.
  • the outer ring of the fifth bearing 15 and the servo linear motor actuator 91 are fixedly connected by a circlip 17 through a hole; the inner ring of the fifth bearing 15 and the connecting shaft 5 are connected by a circlip 16 for shaft Fixed connection.
  • the output shaft of the excitation motor 8 is fixed in the first shaft hole 11 of the left pillow block 10 of the first eccentric body 1 through a key groove.
  • connection method provided in this embodiment is: the servo linear motion system 9 is provided with a servo linear motion system seat 13, and the servo linear motion system seat 13 is fixedly connected to the excitation box cover 7; the excitation box cover The through hole 71 is located at the center of the connection between the excitation box cover 7 and the servo linear motion system seat 13.
  • the servo linear motion system seat 13 is provided with a servo linear motion system seat through hole 131, and the servo linear motion system actuator 91 of the servo linear motion system 9 passes through the servo linear motion system seat through hole 131 and then interacts with the One end of the connecting shaft 5 is connected by a fifth bearing 15.
  • the difference is that the inner wall of the second shaft hole 21 is provided with a second spiral groove; the inner wall of the third shaft hole 31 is provided with a second linear groove; the connecting shaft 5 is from left to right A third boss matched with the second spiral groove and a fourth boss matched with the second linear groove are sequentially provided.
  • the inner circumferential surface of the first eccentric body 1 is provided with a first inner step surface 12 in the direction away from the axis, and the outer circumferential surface of the second eccentric body 2 is provided in the direction closer to the axis.
  • the first inner step surface 12 and the first outer step surface 22 form a first step surface.
  • the left side surfaces of the inner and outer rings of the first bearing 41 are located on the first Step surface.
  • a raised pressure ring 32 is provided on the left side of the right end cover 3, and the pressure ring 32 abuts against the right side of the outer ring of the first bearing 41.
  • a retaining ring 25 is provided on the outer circumferential surface of the second eccentric body 2.
  • the retaining ring 25 is located on the right side of the inner ring of the first bearing 41 and is fixedly connected to the second eccentric body 2.
  • the first eccentric body 1 and the second eccentric body 2 are provided with a right end cover 3 on the right side, and the right end cover 3 is fixedly connected to the first eccentric body 1; the right end cover 3 and the first bearing 41 The right side of the outer ring fits tightly.
  • the inner wall of the second shaft hole 21 is provided with a second spiral groove; the inner wall of the third shaft hole 31 is provided with a second linear groove; the connecting shaft 5 moves from left to right A third boss matched with the second spiral groove and a fourth boss matched with the second linear groove are sequentially provided.
  • the servo linear motion system 9 is a servo hydraulic cylinder
  • the servo hydraulic cylinder actuator 91 is a hydraulic cylinder rod
  • the hydraulic cylinder rod 91 passes through the excitation box cover.
  • the through hole 71 is connected to one end of the connecting shaft 5 through a fifth bearing 15.
  • the outer ring of the fifth bearing 15 and the hydraulic cylinder rod 91 are fixedly connected by a circlip 17 through a hole; the inner ring of the fifth bearing 15 and the connecting shaft 5 are fixedly connected by a circlip 16 for a shaft .
  • the servo linear motion system 9 is a cylinder
  • the servo linear motor actuator 91 is a cylinder rod
  • the cylinder rod 91 passes through the through hole 71 of the excitation box cover. It is connected to one end of the connecting shaft 5 through a fifth bearing 15.
  • the outer ring of the fifth bearing 15 and the cylinder rod 91 are fixedly connected through a hole with an elastic ring 17; the inner ring of the fifth bearing 15 and the connecting shaft 5 are fixedly connected with a shaft elastic ring 16.

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Abstract

一种激振器，属于振动机械技术领域，包括偏心振子，用于容纳偏心振子的激振箱(6)，用于驱动偏心振子旋转的激振电机(8)，还包括用于调整偏心振子偏心量的伺服直线运动系统(9)。所述的偏心振子至少包括第一偏心体(1)、第二偏心体(2)和连接轴(5)，所述第一偏心体(1)和所述第二偏心体(2)至少一个通过螺旋凹槽和与所述螺旋凹槽配合的凸台结构与所述连接轴(5)连接，所述伺服直线运动系统(9)与所述连接轴(5)连接。本发明提供的激振器可在静止或任意转速下调整激振力的大小。

Description

一种激振器 技术领域
本发明属于振动机械技术领域，具体涉及一种安装于振动机械设备上的激振器。
背景技术
激振器是安装于振动机械设备上，用以产生激振力的装置，是振动机械的主要组成部分，对机械振动方式起着决定性的作用。装有激振器的振动机械广泛应用于冶金矿山、工业生产、工程建设及实验设备等行业，用于实现物体的筛分、输送、夯实、振动时效以及成型等。目前现有的机械式激振器主要是由电机和偏心振子组成，电机带动偏心振子运动产生机械振动。这种激振器只能通过控制激振电机转速来控制振动频率，不易进行振幅控制(激振力控制)。需要停止激振电机手动来调整激振器的偏心来控制激振力。针对不同的振动参数，实际操作过程非常麻烦，要不断的停止、调整偏心、调整频率、启动来接近最佳的振动参数。单调整偏心这一步就包括松开偏心紧定螺钉、调整偏心、紧固偏心紧定螺钉等步骤。另外，调整精度差，在静止时调整的偏心量很难在工作中达到最优的激振力参数，只能是“接近”或是“差不多”，无法在工作中动态调整激振力。传统激振器还有一个缺点就是当工件需要较大的激振力时就必须在停止时调到大的偏心。在较大的偏心下启动激振电机，由于启动负载大，激振电机电流增大，很容易烧毁电气元件或损坏电机。
发明内容
针对现有技术的不足，本发明提供一种可以在设备工作过程中实时控制激振力大小的激振器。
一种激振器，包括偏心振子，用于容纳偏心振子的激振箱(6)，用于驱动偏心振子旋转的激振电机(8)，还包括用于调整偏心振子偏心量的伺服直线运动系统(9)。
所述激振电机(8)与所述激振箱(6)固定连接；所述伺服直线运动系统(9)与所述激振箱(6)固定连接。
所述的偏心振子至少包括第一偏心体(1)、第二偏心体(2)和连接轴(5)，所述第一偏心体(1)和所述第二偏心体(2)至少一个通过螺旋凹槽和与所述螺旋凹槽配合的凸台结构与所述连接轴(5)连接，所述伺服直线运动系统(9)与 所述连接轴(5)连接。
所述偏心振子的第一种结构是：所述第一偏心体(1)与所述第二偏心体(2)左右方向并列布置，所述第一偏心体(1)为左偏心体，所述第二偏心体(2)为右偏心体，所述第二偏心体(2)和所述第一偏心体(1)的重心均偏离所述连接轴(5)形成的回转中心；所述第一偏心体(1)与所述激振电机(8)的输出轴固定连接，所述伺服直线运动系统(9)与所述连接轴(5)轴向上固定连接、表面圆周方向上转动连接。
所述第一偏心体(1)通过直线凹槽和与所述直线凹槽配合的凸台结构与所述连接轴(5)连接；所述第二偏心体(2)通过螺旋凹槽和与所述螺旋凹槽配合的凸台结构与所述连接轴(5)连接。
进一步的方案是，所述第一偏心体(1)设置左轴台(10)，所述左轴台(10)设置第一轴孔(11)。
进一步的，所述激振电机(8)的输出轴通过键槽配合固定在所述第一轴孔(11)的左侧部分。
进一步的，所述连接轴(5)左侧设置第一直线凹槽(52)，所述第一轴孔(11)的右侧部分设有与所述第一直线凹槽(52)配合的直线凸台(111)。所述连接轴(5)右侧设置第一螺旋凹槽(51)，所述第二偏心体(2)内设有第二轴孔(21)，所述第二轴孔(21)内设置与所述第一螺旋凹槽(51)配合的第一凸台(24)。
优选的，所述直线凸台(111)至少有两个，设置在与所述第一直线凹槽(52)配合的轨迹线上；所述第一凸台(24)至少有两个，设置在与所述第一螺旋凹槽(51)配合的轨迹线上。
或者，所述第一轴孔(11)内设置第二直线凹槽，所述连接轴(5)左侧设有与所述第二直线凹槽配合的第三凸台；所述第二轴孔(2)内设置第二螺旋凹槽，所述连接轴(5)右侧设有与所述第二螺旋凹槽配合的第四凸台。
所述第三凸台的数量可以是一个或者多个，优选的，所述第三凸台至少有两个，设置在与所述第二直线凹槽配合的轨迹线上；所述第四凸台的数量可以是一个或者多个，优选的，所述第四凸台至少有两个，设置在与所述第二螺旋凹槽配合的轨迹线上。
进一步的，所述激振箱(6)与所述激振电机(8)连接处开设第一通孔，所 述激振电机(8)的输出轴穿过所述第一通孔后固定在所述左偏心体左轴台(10)的第一轴孔(11)内；所述左轴台(10)外周面与所述第一通孔之间设置第三轴承(14)，所述第三轴承(14)的内圈与所述左轴台(10)外周面固定连接，所述第三轴承(14)的外圈与所述第一通孔的内表面固定连接。
进一步的，所述激振箱(6)设有激振箱盖(7)，所述激振箱盖(7)开设激振箱盖通孔(71)。
所述右偏心体右侧设置右轴台(20)，所述右轴台(20)与所述激振箱盖通孔(71)之间设置第四轴承(141)。
为了提供更好的支撑，所述右偏心体至少设有一段第一外圆周面，所述第一外圆周面与所述激振箱(6)之间设置第一轴承(41)。
所述左偏心体至少设有一段第二外圆周面，所述第二外圆周面与所述激振箱(6)内表面之间设置第二轴承(42)。
为了更好的固定所述第一轴承(41)和所述第二轴承(42)的位置，进一步的，所述右偏心体的第一圆周面右侧部向远离轴心的方向上设置第一台阶(220)，所述左偏心体的第二圆周面左侧部向远离轴心的方向上设置第二台阶(120)，所述激振箱(6)内表面左侧向远离轴心的方向上设置左台阶面(61)，所述第二轴承(42)的外圈抵靠在所述左台阶面(61)上，所述第二轴承(42)的内圈抵靠在所述第二台阶(120)上；所述激振箱盖(7)左侧设置凸沿(73)，所述第一轴承(41)的外圈抵靠在所述凸沿(73)上，所述第一轴承(41)的内圈抵靠在所述第一台阶(220)上；所述第一轴承(41)和所述第二轴承(42)外圈之间设置支撑环(43)。
所述伺服直线运动系统(9)与所述激振箱盖(7)固定连接。所述伺服直线运动系统执行机构(91)与所述连接轴(5)的一端通过第五轴承(15)连接，所述第五轴承(15)的外圈与所述伺服直线运动系统执行机构(91)通过孔用弹性挡圈(17)固定连接；所述第五轴承(15)的内圈与所述连接轴(5)通过轴用弹性挡圈(16)固定连接。
所述伺服直线运动系统(9)与所述激振箱盖(7)固定连接，其中，一种具体的连接方式是：所述激振箱盖(7)在所述激振箱盖通孔(71)周边设有凸缘(72)，所述伺服直线运动系统(9)与所述凸缘(72)固定连接。
另一种具体的连接方式是：所述伺服直线运动系统(9)设有伺服直线运动系统座(13)，所述伺服直线运动系统座(13)与所述激振箱盖(7)固定连接；所述激振箱盖通孔(71)位于所述激振箱盖(7)与所述伺服直线运动系统座(13)连接处中心位置。所述伺服直线运动系统座(13)开设有伺服直线运动系统座通孔(131)，所述伺服直线运动系统(9)的伺服直线运动系统执行机构(91)穿过所述伺服直线运动系统座通孔(131)后与所述连接轴(5)的一端通过第五轴承(15)连接。
进一步的，所述伺服直线运动系统(9)的伺服直线运动系统执行机构(91)通过第五轴承(15)与所述连接轴(5)连接。所述伺服直线运动系统(9)控制所述伺服直线运动系统执行机构(91)的轴向位置，并可以在行程范围内的任意位置锁定所述位置。
进一步的，所述伺服直线运动系统(9)的伺服直线运动系统执行机构(91)末端开设轴孔(92)，所述连接轴(5)穿过所述轴孔(92)后通过第五轴承(15)与所述直线运动系统执行机构(91)连接，所述第五轴承(15)的外圈与轴孔(92)通过孔用弹性挡圈(17)固定连接；所述第五轴承(15)的内圈与所述连接轴(5)通过轴用弹性挡圈(16)固定连接。
所述的伺服直线运动系统(9)可以为液压缸、气缸和伺服直线电机或者其他伺服直线运动系统；相应的，所述伺服直线运动系统执行机构(91)分别为液压杆，气缸杆和螺杆或者其他。
优选的，所述伺服直线运动系统(9)是伺服直线电机，所述伺服直线运动系统执行机构(91)是螺杆。
所述上述激振装置的激振器器工作原理是：
由于第一轴承(41)、第二轴承(42)、第三轴承(14)、第五轴承(15)、第四轴承(141)的设置，所述激振电机(8)的输出轴驱动所述第一偏心体(1)旋转，所述第一偏心体(1)带动所述连接轴(5)同步旋转，所述连接轴(5)带动所述第二偏心体(2)同步旋转，最终实现了所述第一偏心体(1)与所述第二偏心体(2)的同步旋转。也就是说，所述激振电机(8)驱动整个偏心振子同步旋转，产生激振力。同时，由于上述第五轴承(15)的设置，使得所述伺服直线运动系统执行机构(91)在轴线方向上与所述连接轴(5)同步动作，但径向 上保持不动，不与所述连接轴(5)同步转动，阻止了激振电机(8)将转动通过旋转轴(5)传递给所述伺服直线运动系统执行机构(91)。
在静止或任意转速下，当需要调整所述激振器的激振力大小时，控制伺服直线运动系统(9)使所述伺服直线运动系统执行机构(91)沿轴向向左或者向右直线动作，所述伺服直线运动系统执行机构(91)带动所述连接轴(5)轴向直线动作，带动所述第二偏心体(2)在周向上相对旋转，从而调整所述第一偏心体(1)和所述第二偏心体(2)之间的相对夹角，达到调整激振力的目的。
所述偏心振子的第二种结构是：所述第一偏心体(1)与所述第二偏心体(2)内外方向布置，所述第一偏心体(1)为外偏心体，所述第二偏心体(2)为内偏心体，所述外偏心体具有内圆周表面，所述内偏心体具有外圆周面，所述外偏心体的内圆周面和所述内偏心体的外圆周面之间设置至少一个第一轴承(41)；所述第二偏心体(2)和所述第一偏心体(1)的重心均偏离所述连接轴(5)形成的回转中心。
所述第二偏心体与所述连接轴(5)通过螺旋凹槽和与所述螺旋凹槽配合的凸台结构连接；所述第一偏心体与所述连接轴(5)通过直线凹槽和与所述直线凹槽配合的凸台结构连接；所述伺服直线运动系统(9)与所述连接轴(5)轴向上固定连接、表面圆周方向上可转动连接。
进一步的，所述伺服直线运动系统(9)的伺服直线运动系统执行机构(91)末端开设轴孔(92)，所述连接轴(5)穿过所述轴孔(92)后通过第五轴承(15)与所述直线运动系统执行机构(91)连接，所述第五轴承(15)的外圈与轴孔(92)通过孔用弹性挡圈(17)固定连接；所述第五轴承(15)的内圈与所述连接轴(5)通过轴用弹性挡圈(16)固定连接。
进一步的，所述的伺服直线运动系统(9)可以是液压缸，气缸或者伺服直线电机，相应的，所述伺服直线运动系统执行机构(91)是液压杆，气缸杆或者螺杆。
进一步的，所述第二偏心体(2)设有与所述第一轴承(41)同轴心的第二轴孔(21)；所述连接轴(5)和所述第二轴孔(21)通过螺旋凹槽和与所述螺旋凹槽配合的凸台结构连接。
进一步的，所述第一偏心体(1)和所述第二偏心体(2)右侧设有右端盖(3)， 所述右端盖(3)与所述第一偏心体(1)固定连接；所述右端盖(3)与所述第一轴承(41)外圈的右侧面紧贴合；所述右端盖(3)设有与所述第一轴承(41)同轴心的第三轴孔(31)；所述连接轴(5)和所述第三轴孔(31)通过直线凹槽和与所述直线凹槽配合的凸台结构连接。
进一步的，所述激振箱(6)与所述激振电机(8)连接处开设第一通孔，所述激振电机(8)的输出轴穿过所述第一通孔后固定在所述第一偏心体(1)左轴台(10)的第一轴孔(11)内；所述左轴台(10)外周面与所述第一通孔之间设置第三轴承(14)。
进一步的，所述激振电机(8)的输出轴通过键槽配合固定在所述第一偏心体(1)左轴台(10)的第一轴孔(11)内。
进一步的，所述激振箱(6)设有激振箱盖(7)，所述伺服直线运动系统(9)与所述激振箱盖(7)固定连接；所述激振箱盖(7)开设激振箱盖通孔(71)。所述伺服直线运动系统执行机构(91)与所述连接轴(5)的一端通过第五轴承(15)连接，所述第五轴承(15)的外圈与所述伺服直线运动系统执行机构(91)通过孔用弹性挡圈(17)固定连接；所述第五轴承(15)的内圈与所述连接轴(5)通过轴用弹性挡圈(16)固定连接。
所述伺服直线运动系统(9)与所述激振箱盖(7)固定连接，其中，一种具体的连接方式是：所述激振箱盖(7)在所述激振箱盖通孔(71)周边设有凸缘(72)，所述伺服直线运动系统(9)与所述凸缘(72)固定连接。
另一种具体的连接方式是：所述伺服直线运动系统(9)设有伺服直线运动系统座(13)，所述伺服直线运动系统座(13)与所述激振箱盖(7)固定连接；所述激振箱盖通孔(71)位于所述激振箱盖(7)与所述伺服直线运动系统座(13)连接处中心位置。所述伺服直线运动系统座(13)开设有伺服直线运动系统座通孔(131)，所述伺服直线运动系统(9)的伺服直线运动系统执行机构(91)穿过所述伺服直线运动系统座通孔(131)后与所述连接轴(5)的一端通过第五轴承(15)连接。
进一步的，所述右端盖(3)与所述第一轴承(41)同轴心的第三轴孔(31)右侧设有右端盖轴台(34)，所述右端盖轴台(34)与所述激振箱盖通孔71之间设置第四轴承(141)。
进一步的，所述伺服直线运动系统(9)的伺服直线运动系统执行机构(91)末端开设轴孔(92)，所述连接轴(5)穿过所述轴孔(92)后通过第五轴承(15)与所述直线运动系统执行机构(91)连接，所述第五轴承(15)的外圈与所述伺服直线运动系统执行机构(91)孔用弹性挡圈(17)固定连接；所述第五轴承(15)的内圈与所述连接轴(5)通过轴用弹性挡圈(16)固定连接。
进一步的，所述第一偏心体(1)的内圆周表面向远离轴心的方向上设有第一内台阶面(12)，所述第二偏心体(2)的外圆周表面向靠近轴心的方向上设有第一外台阶面(22)，所述第一内台阶面(12)和所述第一外台阶面(22)形成第一台阶面，所述第一轴承(41)内、外圈左侧面坐落于所述第一台阶面上。
进一步的，在所述第二偏心体(2)的外圆周表面上设置有挡圈(25)，所述挡圈(25)位于所述第一轴承(41)内圈右侧，所述挡圈(25)与所述第二偏心体(2)固定连接。
另一种方案是：在所述第一偏心体(1)和所述第二偏心体(2)之间设置第二轴承(42)，所述第一偏心体(1)的所述内圆周表面向远离轴心的方向上设有第一内台阶面(12)，所述第二偏心体(2)的所述外圆周表面中间位置向远离轴心的方向上设有凸环(23)，所述凸环(23)的左侧台阶面与所述第一内台阶面(12)之间形成容纳所述第二轴承(42)的空间，所述凸环(23)的右侧台阶面与所述右端盖(3)的压环(32)之间形成容纳所述第一轴承(41)的空间。
进一步的，在所述第一轴承(41)外圈和所述第二轴承(42)外圈之间设置支撑环(43)。
进一步的，所述连接轴(5)从左到右依次设置第一螺旋凹槽(51)和第一直线凹槽(52)；所述第二偏心体(2)的第二轴孔(21)内壁设置与所述第一螺旋凹槽(51)配合的第一凸台(24)；所述右端盖(3)的第三轴孔(31)内壁设置与所述第一直线凹槽(52)配合的第二凸台(33)。
优选的方案是，所述第一凸台(24)至少有两个，设置在与所述第一螺旋凹槽(51)配合的轨迹线上；所述第二凸台(33)至少有两个，设置在与所述第一直线凹槽(52)配合的轨迹线上。
另一种方案是，所述第二偏心体(2)的第二轴孔(21)内壁设置第二螺旋凹槽；所述右端盖(3)的第三轴孔(31)内壁设置第二直线凹槽；所述连接轴 (5)从左到右依次设置与所述第二螺旋凹槽配合的第三凸台，和与所述第二直线凹槽配合的第四凸台。
优选的方案是，所述第三凸台至少有两个，设置在与所述第二螺旋凹槽配合的轨迹线上；所述第四凸台至少有两个，设置在与所述第二直线凹槽配合的轨迹线上。
所述设有第二种激振装置的激振器器工作原理是：
由于第一轴承(41)、第二轴承(42)、第三轴承(14)、第五轴承(15)、第四轴承(141)的设置，所述激振电机(8)的输出轴驱动所述第一偏心体(1)旋转，所述第一偏心体(1)带动所述右端盖(3)同步旋转，所述右端盖(3)带动所述连接轴(5)同步旋转，所述连接轴(5)带动所述第二偏心体(2)同步旋转，最终实现了所述第一偏心体(1)与所述第二偏心体(2)的同步旋转。也就是说，所述激振电机(8)驱动整个偏心振子同步旋转，产生激振力。同时，由于上述轴承的设置，使得所述伺服直线运动系统执行机构(91)在轴线方向上与所述连接轴(5)同步动作，但径向上保持不动，不与所述连接轴(5)同步转动，阻止了激振电机(8)将转动通过旋转轴(5)传递给所述伺服直线运动系统执行机构(91)。
在静止或任意转速下，当需要调整所述激振器的激振力大小时，控制伺服直线运动系统(9)使所述伺服直线运动系统执行机构(91)沿轴向向左或者向右直线动作，所述伺服直线运动系统执行机构(91)带动所述连接轴(5)轴向直线动作，带动所述第二偏心体(2)在周向上相对旋转，从而调整所述第一偏心体(1)和所述第二偏心体(2)之间的相对夹角，达到调整激振力的目的。
与现有技术相比，本发明提供的激振器可在任意转速下调整偏心大小，即调整激振力大小。激振器在启动时调到偏心最小，启动达到设定速度后调整偏心到设定值，有效保护了电气元件和激振电机，避免电流过大损坏。在振动设备工作中调整激振力大小更能准确控制参数。整个激振力调整配合电气控制将变得简单方便，更适合整个振动过程的自动化控制。
附图说明
图1是本发明实施例1一种激振器的分解结构示意图；
图2是本发明实施例1一种激振器的装配结构示意图；
图3是本发明激振器一种左右布置的偏心振子结构示意图；
图4是本发明实施3的结构示意图；
图5是本发明实施例4一种激振器的分解结构示意图；
图6是本发明实施例4一种激振器的装配结构示意图；
图7是本发明实施例5一种激振器的分解结构示意图；
图8是本发明实施例5一种激振器的装配结构示意图；
图9是本发明激振器的一种内外布置的偏心振子结构示意图；
图10是本发明激振器另一种内外布置偏心振子的结构示意图。
其中，1、第一偏心体 10、左轴台 11、第一轴孔 111、直线凸台 12、第一内台阶面 120、第二台阶 13、伺服直线运动系统座 131、伺服直线运动系统座通孔 14、第三轴承 141、第四轴承 15、第五轴承 16、轴用弹性挡圈 17、孔用弹性挡圈 2、第二偏心体 20、右轴台 21、第二轴孔 22、第一外台阶面 220、第一台阶 23、凸环 24、第一凸台 25、挡圈 3、右端盖 31、第三轴孔 32、压环 33、第三凸台 34、右端盖轴台 41、第一轴承 42、第二轴承 43、支撑环 5、连接轴 51、螺旋凹槽 52、直线凹槽 6、激振箱 61、左台阶面 7、激振箱盖 71、激振箱盖通孔 72、凸缘 73、凸沿 8、激振电机 9、伺服直线运动系统 91、伺服直线运动系统执行机构 92、轴孔。
具体实施方式
下面结合附图，以举例的方式对本发明创造做出详细说明。
实施例1：
如图1，图2所示，一种激振器，包括偏心振子，用于容纳偏心振子的激振箱6，用于驱动偏心振子旋转的激振电机8，还包括用于调整偏心振子偏心量的伺服直线运动系统9。所述的偏心振子包括第一偏心体1、第二偏心体2和连接轴5。所述第一偏心体1与所述第二偏心体2左右方向并列布置，所述第一偏心体1为左偏心体，所述第二偏心体2为右偏心体，所述第二偏心体2和所述第一偏心体1的重心均偏离所述连接轴5形成的回转中心。
如图3所示，所述第一偏心体1设置左轴台10，所述左轴台10设置第一轴孔11。所述激振电机8的输出轴通过键槽配合固定在所述第一轴孔11的左侧部分。
如图3所示，所述连接轴5左侧设置第一直线凹槽52，所述第一轴孔11的右侧部分设有与所述第一直线凹槽52配合的直线凸台111。所述连接轴5右侧设置第一螺旋凹槽51，所述第二偏心体2内设有第二轴孔21，所述第二轴孔21内设置与所述第一螺旋凹槽51配合的第一凸台24。
所述直线凸台111有两个，设置在与所述第一直线凹槽52配合的轨迹线上；所述第一凸台有两个，设置在与所述第一螺旋凹槽51配合的轨迹线上。
如图2所示，所述激振箱6与所述激振电机8连接处开设第一通孔，所述激振电机8的输出轴穿过所述第一通孔后通过键槽配合固定在所述左偏心体左轴台10的第一轴孔11内；所述左轴台10外周面与所述第一通孔之间设置第三轴承14，所述第三轴承14的内圈与所述左轴台10外周面固定连接，所述第三轴承14的外圈与所述第一通孔的内表面固定连接。
所述激振箱6设有激振箱盖7，所述激振箱盖7开设激振箱盖通孔71。
所述右偏心体右侧设置右轴台20，所述右轴台20与所述激振箱盖通孔71之间设置第四轴承141。
为了提供更好的支撑，所述右偏心体至少设有一段第一外圆周面，所述第一外圆周面与所述激振箱6之间设置第一轴承41。
所述左偏心体至少设有一段第二外圆周面，所述第二外圆周面与所述激振箱6内表面之间设置第二轴承42。
如图3所示，为了更好的固定所述第一轴承41和所述第二轴承42，所述右偏心体的第一外圆周面右侧部向远离轴心的方向上设置第一台阶220，所述左偏心体的第二外圆周面左侧部向远离轴心的方向上设置第二台阶面120，如图2所示，所述激振箱6内表面左侧向远离轴心的方向上设置左台阶面61，所述第二轴承42的外圈抵靠在所述左台阶面61上，所述第二轴承42的内圈抵靠在所述第二台阶面220上；所述激振箱盖7左侧设置凸沿73，所述第一轴承41的外圈抵靠在所述凸沿73上，所述第一轴承41的内圈抵靠在所述第一台阶220上；所述第一轴承41和所述第二轴承42外圈之间设置支撑环43。
如图2所示，所述激振箱盖7在所述激振箱盖通孔71周边设有凸缘72，所述伺服直线运动系统9与所述凸缘72固定连接。伺服直线运动系统9是伺服直线电机，所述伺服直线运动系统执行机构91是螺杆。所述螺杆末端开设轴孔92， 所述连接轴5穿过所述轴孔92后通过第五轴承15与所述直线运动系统执行机构91连接。所述第五轴承15的外圈与所述轴孔92通过孔用弹性挡圈17固定连接；所述第五轴承15的内圈与所述连接轴5通过轴用弹性挡圈16固定连接。所述伺服直线运动系统9控制所述伺服直线运动系统执行机构91的轴向位置，并可以在行程范围内的任意位置锁定所述位置。
实施例2：
与实施例1相同，不同之处在于，所述第一轴孔11内设置第二直线凹槽。
所述连接轴5左侧设有与所述第二直线凹槽配合的第三凸台；所述第二轴孔21内设置第二螺旋凹槽，所述连接轴5右侧设有与所述第二螺旋凹槽配合的第四凸台。
所述第三凸台有两个，设置在与所述第二直线凹槽配合的轨迹线上；所述第四凸台有两个，设置在与所述第二螺旋凹槽配合的轨迹线上。
实施例3：
与实施例1相同，不同之处在于，本实施例提供另外一种具体的伺服直线运动系统9与连接轴5的连接方式。如图4所示，所述伺服直线运动系统9设有伺服直线运动系统座13，所述伺服直线运动系统座13与所述激振箱盖7固定连接；所述激振箱盖通孔71位于所述激振箱盖7与所述伺服直线运动系统座13连接处中心位置。所述伺服直线运动系统座13开设有伺服直线运动系统座通孔131，所述伺服直线运动系统9的伺服直线运动系统执行机构91穿过所述伺服直线运动系统座通孔131后与所述连接轴5的一端通过第五轴承15连接。
实施例4：
如图5、图6和图9所示，一种激振器，包括偏心振子，用于容纳偏心振子的激振箱6，用于驱动偏心振子旋转的激振电机8，和用于调整偏心振子偏心量的伺服直线运动系统9。
所述的偏心振子包括第一偏心体1、第二偏心体2和连接轴5，所述第一偏心体1与所述第二偏心体2内外方向布置，所述第一偏心体1为外偏心体，所述第二偏心体2为内偏心体，所述外偏心体具有内圆周表面，所述内偏心体具有外圆周面，所述外偏心体的内圆周面和所述内偏心体的外圆周面之间设置第一轴承41和第二轴承42；所述内偏心体和所述外偏心体的重心均偏离所述连接轴5形 成的回转中心。
所述第一偏心体1的所述内圆周表面向远离轴心的方向上设有第一内台阶面12，所述第二偏心体2的所述外圆周表面中间位置向远离轴心的方向上设有凸环23，所述凸环23的左侧台阶面与所述第一内台阶面12之间形成容纳所述第二轴承42的空间，所述凸环23的右侧台阶面与所述右端盖3的压环32之间形成容纳所述第一轴承41的空间。
在所述第一轴承41外圈和所述第二轴承42外圈之间设置支撑环43。
所述右端盖3左侧设有凸起的压环32，所述压环32抵靠在所述第一轴承41的外圈右侧。
所述第一偏心体1左侧设有与所述第一轴承41同轴心的左轴台10，所述左轴台10设有与所述第一轴承41同轴心的第一轴孔11。
所述第二偏心体2设有与所述第一轴承41同轴心的第二轴孔21。
所述右端盖3设有与所述第一轴承41同轴心的第三轴孔31。
所述连接轴5从左到右依次设置第一螺旋凹槽51和第一直线凹槽52；所述第二轴孔21内壁设置与所述第一螺旋凹槽51配合的第一凸台24；所述第三轴孔31内壁设置与所述第一直线凹槽52配合的第二凸台33。
所述第一凸台24有两个，设置在与所述第一螺旋凹槽51配合的轨迹线上；所述第二凸台33有两个，设置在与所述第一直线凹槽52配合的轨迹线上。
所述激振电机8与所述激振箱6固定连接。
所述激振箱6与所述激振电机8连接处开设第一通孔，所述激振电机8的输出轴穿过所述第一通孔后固定在所述第一偏心体1左轴台10的第一轴孔11内；所述左轴台10外周面与所述第一通孔之间设置第三轴承14。
所述激振箱6设有激振箱盖7，所述伺服直线运动系统9与所述激振箱盖7固定连接；所述激振箱盖7中心开设激振箱盖通孔71。所述激振箱盖7在所述激振箱盖通孔71周边设有凸缘72，所述伺服直线运动系统9与所述凸缘72固定连接。
所述右端盖3与所述第一轴承41同轴心的第三轴孔31右侧设有右端盖轴台34，所述右端盖轴台34与所述激振箱盖通孔71之间设置第四轴承141。
所述激振箱盖7开设有激振箱盖通孔71，所述伺服直线运动系统9可以是 液压缸、气缸或者伺服直线电机等，本实施例采用伺服直线电机。所述伺服直线电机执行机构91为螺杆。
所述伺服直线电机执行机构91螺杆穿过所述激振箱盖通孔71后与所述连接轴5的一端通过第五轴承15连接。所述第五轴承15的外圈与所述伺服直线电机执行机构91通过孔用弹性挡圈17固定连接；所述第五轴承15的内圈与所述连接轴5通过轴用弹性挡圈16固定连接。
所述激振电机8的输出轴通过键槽配合固定在所述第一偏心体1左轴台10的第一轴孔11内。
实施例5：
与实施例4相同，不同之处在于，所述伺服直线运动系统9与所述激振箱盖7固定连接方式不同。本实施例提供的连接方式是：所述伺服直线运动系统9设有伺服直线运动系统座13，所述伺服直线运动系统座13与所述激振箱盖7固定连接；所述激振箱盖通孔71位于所述激振箱盖7与所述伺服直线运动系统座13连接处中心位置。所述伺服直线运动系统座13开设有伺服直线运动系统座通孔131，所述伺服直线运动系统9的伺服直线运动系统执行机构91穿过所述伺服直线运动系统座通孔131后与所述连接轴5的一端通过第五轴承15连接。
实施例6；
与实施例4相同，不同之处在于，所述第二轴孔21内壁设置第二螺旋凹槽；所述第三轴孔31内壁设置第二直线凹槽；所述连接轴5从左到右依次设置与所述第二螺旋凹槽配合的第三凸台，和与所述第二直线凹槽配合的第四凸台。
所述第三凸台有两个，设置在与所述第二螺旋凹槽配合的轨迹线上；所述第四凸台有两个，设置在与所述第二直线凹槽配合的轨迹线上。
实施例7：
与实施例4相同，不同之处在于，如图10所示，所述第一偏心体1的内圆周面和所述第二偏心体2的外圆周面之间只设置一个轴承，即第一轴承41。
所述第一偏心体1的所述内圆周表面向远离轴心的方向上设有第一内台阶面12，所述第二偏心体2的所述外圆周表面向靠近轴心的方向上设有第一外台阶面22，所述第一内台阶面12和所述第一外台阶面22形成第一台阶面，所述第一轴承41内、外圈左侧面坐落于所述第一台阶面上。所述右端盖3左侧设有 凸起的压环32，所述压环32抵靠在所述第一轴承41的外圈右侧。
在所述第二偏心体2的外圆周表面上设置有挡圈25，所述挡圈25位于第一轴承41的内圈右侧，与所述第二偏心体2固定连接。
所述第一偏心体1和所述第二偏心体2右侧设有右端盖3，所述右端盖3与所述第一偏心体1固定连接；所述右端盖3与所述第一轴承41外圈的右侧面紧贴合。
实施例8：
与实施例7相同，不同之处在于，所述第二轴孔21内壁设置第二螺旋凹槽；所述第三轴孔31内壁设置第二直线凹槽；所述连接轴5从左到右依次设置与所述第二螺旋凹槽配合的第三凸台，和与所述第二直线凹槽配合的第四凸台。
所述第三凸台有两个，设置在与所述第二螺旋凹槽配合的轨迹线上；所述第四凸台有两个，设置在与所述第二直线凹槽配合的轨迹线上。
实施例9：
与实施例4相同，不同之处在于，所述伺服直线运动系统9是伺服液压缸，所述伺服液压缸执行机构91为液压缸杆，所述液压缸杆91穿过所述激振箱盖通孔71后与所述连接轴5的一端通过第五轴承15连接。所述第五轴承15的外圈与所述液压缸杆91通过孔用弹性挡圈17固定连接；所述第五轴承15的内圈与所述连接轴5通过轴用弹性挡圈16固定连接。
实施例10：
与实施例4相同，不同之处在于，所述伺服直线运动系统9是气缸，所述伺服直线电机执行机构91为气缸杆，所述气缸杆91穿过所述激振箱盖通孔71后与所述连接轴5的一端通过第五轴承15连接。所述第五轴承15的外圈与所述气缸杆91通过孔用弹性挡圈17固定连接；所述第五轴承15的内圈与所述连接轴5通过轴用弹性挡圈16固定连接。

Claims (41)

  1. 一种激振器，包括偏心振子，用于容纳偏心振子的激振箱(6)，用于驱动偏心振子旋转的激振电机(8)，其特征在于，还包括用于调整偏心振子偏心量的伺服直线运动系统(9)；所述激振电机(8)与所述激振箱(6)固定连接；所述的偏心振子至少包括第一偏心体(1)、第二偏心体(2)和连接轴(5)，所述第一偏心体(1)和所述第二偏心体(2)至少一个通过螺旋凹槽和与所述螺旋凹槽配合的凸台结构与所述连接轴(5)连接，所述伺服直线运动系统(9)与所述连接轴(5)连接。
  2. 根据权利要求1所述的激振器，其特征在于，所述第一偏心体(1)与所述第二偏心体(2)左右方向并列布置，所述第一偏心体(1)为左偏心体，所述第二偏心体(2)为右偏心体，所述第二偏心体(2)和所述第一偏心体(1)的重心均偏离所述连接轴(5)形成的回转中心；所述第一偏心体(1)与所述激振电机(8)的输出轴固定连接，所述伺服直线运动系统(9)与所述连接轴(5)轴向上固定连接、表面圆周方向上转动连接。
  3. 根据权利要求2所述的激振器，其特征在于，所述第一偏心体(1)通过直线凹槽和与所述直线凹槽配合的凸台结构与所述连接轴(5)连接；所述第二偏心体(2)通过螺旋凹槽和与所述螺旋凹槽配合的凸台结构与所述连接轴(5)连接。
  4. 根据权利要求3所述的激振器，其特征在于，所述第一偏心体(1)设置左轴台(10)，所述左轴台(10)设置第一轴孔(11)。
  5. 根据权利要求4所述的激振器，其特征在于，所述激振电机(8)的输出轴通过键槽配合固定在所述第一轴孔(11)的左侧部分。
  6. 根据权利要求5所述的激振器，其特征在于，所述连接轴(5)左侧设置第一直线凹槽(52)，所述第一轴孔(11)的右侧部分设有与所述第一直线凹槽(52)配合的直线凸台(111)，所述连接轴(5)右侧设置第一螺旋凹槽(51)，所述第二偏心体(2)内设有第二轴孔(21)，所述第二轴孔(21)内设置与所述第一螺旋凹槽(51)配合的第一凸台(24)。
  7. 根据权利要6所述的激振器，其特征在于，所述直线凸台至少有两个，设置在与所述第一直线凹槽(52)配合的轨迹线上；所述第一凸台至少有两个，设置在与所述第一螺旋凹槽(51)配合的轨迹线上。
  8. 根据权利要求5所述的激振器，其特征在于，所述第一轴孔(11)内设置第二直线凹槽，所述连接轴(5)左侧设有与所述第二直线凹槽配合的第三凸台；所述第二偏心体(2)内设有第二轴孔(21)，所述第二轴孔(21)内设置第二螺旋凹槽，所述连接轴(5)右侧设有与所述第二螺旋凹槽配合的第四凸台。
  9. 根据权利要求8所述的激振器，其特征在于，所述第三凸台至少有两个，设置在与所述第二直线凹槽配合的轨迹线上；所述第四凸台至少有两个，设置在与所述第二螺旋凹槽配合的轨迹线上。
  10. 根据权利要求4-9任意一项所述的激振器，其特征在于，所述激振箱(6)与所述激振电机(8)连接处开设第一通孔，所述激振电机(8)的输出轴穿过所述第一通孔后固定在所述左偏心体左轴台(10)的第一轴孔(11)内；所述左轴台(10)外周面与所述第一通孔之间设置第三轴承(14)，所述第三轴承(14)的内圈与所述左轴台(10)外周面固定连接，所述第三轴承(14)的外圈与所述第一通孔的内表面固定连接。
  11. 根据权利要求9所述的激振器，其特征在于，所述激振箱(6)设有激振箱盖(7)，所述激振箱盖(7)开设激振箱盖通孔(71)。
  12. 根据权利要求11所述的激振器，其特征在于，所述右偏心体右侧设置右轴台(20)，所述右轴台(20)与所述激振箱盖通孔(71)之间设置第四轴承(141)。
  13. 根据权利要求12所述的激振器，其特征在于，所述右偏心体至少设有一段第一外圆周面，所述第一外圆周面与所述激振箱(6)之间设置第一轴承(41)。
  14. 根据权利要求13所述的激振器，其特征在于，所述左偏心体至少设有一段第二外圆周面，所述第二外圆周面与所述激振箱(6)内表面之间设置第二轴承(42)。
  15. 根据权利要求14所述的激振器，其特征在于，所述右偏心体的第一圆周面右侧部向远离轴心的方向上设置第一台阶(220)，所述左偏心体的第二圆周面左侧部向远离轴心的方向上设置第二台阶(120)，所述激振箱(6)内表面左侧向远离轴心的方向上设置左台阶面(61)，所述第二轴承(42)的外圈抵靠在所述左台阶面(61)上，所述第二轴承(42)的内圈抵靠在所述第二台阶(120)上；所述激振箱盖(7)左侧设置凸沿(73)，所述第一轴承(41)的外圈抵靠在 所述凸沿(73)上，所述第一轴承(41)的内圈抵靠在所述第一台阶(220)上；所述第一轴承(41)和所述第二轴承(42)外圈之间设置支撑环(43)。
  16. 根据权利要求15所述的激振器，其特征在于，所述伺服直线运动系统(9)设置伺服直线运动系统执行机构(91)，所述伺服直线运动系统执行机构(91)与所述连接轴(5)的一端通过第五轴承(15)连接，所述第五轴承(15)的外圈与所述伺服直线运动系统执行机构(91)通过孔用弹性挡圈(17)固定连接；所述第五轴承(15)的内圈与所述连接轴(5)通过轴用弹性挡圈(16)固定连接。
  17. 根据权利要求16所述的激振器，其特征在于，所述激振箱盖(7)在所述激振箱盖通孔(71)周边设有凸缘(72)，所述伺服直线运动系统(9)与所述凸缘(72)固定连接。
  18. 根据权利要求16所述的激振器，其特征在于，所述伺服直线运动系统(9)设有伺服直线运动系统座(13)，所述伺服直线运动系统座(13)与所述激振箱盖(7)固定连接；所述激振箱盖通孔(71)位于所述激振箱盖(7)与所述伺服直线运动系统座(13)连接处中心位置，所述伺服直线运动系统座(13)开设有伺服直线运动系统座通孔(131)，所述伺服直线运动系统(9)的伺服直线运动系统执行机构(91)穿过所述伺服直线运动系统座通孔(131)后与所述连接轴(5)的一端通过第五轴承(15)连接。
  19. 根据权利要求17或者18所述的激振器，其特征在于，所述伺服直线运动系统执行机构(91)末端开设轴孔(92)，所述连接轴(5)穿过所述轴孔(92)后通过第五轴承(15)与所述直线运动系统执行机构(91)连接。
  20. 根据权利要求19所述的激振器，其特征在于，所述伺服直线运动系统(9)是伺服直线电机，所述伺服直线运动系统执行机构(91)是螺杆。
  21. 根据权利要求1所述的激振器，其特征在于，所述第一偏心体(1)与所述第二偏心体(2)内外方向布置，所述第一偏心体(1)具有内圆周表面，所述第二偏心体(2)具有外圆周面，所述第一偏心体(1)的内圆周面和所述第二偏心体(2)的外圆周面之间设置至少一个第一轴承(41)；所述第二偏心体(2)和所述第一偏心体(1)的重心均偏离所述第一轴承(41)形成的回转中心；所述第二偏心体(2)与所述连接轴(5)通过螺旋凹槽和与所述螺旋凹槽配合的凸 台结构连接；所述第一偏心体(1)与所述连接轴(5)通过直线凹槽和与所述直线凹槽配合的凸台结构连接；所述伺服直线运动系统(9)与所述连接轴(5)轴向上固定连接、表面圆周方向上可转动连接。
  22. 根据权利要求21所述的激振器，其特征在于，所述伺服直线运动系统(9)的伺服直线运动系统执行机构(91)末端开设轴孔(92)，所述连接轴(5)穿过所述轴孔(92)后通过第五轴承(15)与所述直线运动系统执行机构(91)连接，所述第五轴承(15)的外圈与轴孔(92)通过孔用弹性挡圈(17)固定连接；所述第五轴承(15)的内圈与所述连接轴(5)通过轴用弹性挡圈(16)固定连接。
  23. 根据权利要求22所述的激振器，其特征在于，所述的伺服直线运动系统(9)是液压缸，所述伺服直线运动系统执行机构(91)是液压杆。
  24. 根据权利要求22所述的激振器，其特征在于，所述的伺服直线运动系统(9)是气缸，所述伺服直线运动系统执行机构(91)是气缸杆。
  25. 根据权利要求22所述的激振器，其特征在于，所述的伺服直线运动系统(9)是伺服直线电机，所述伺服直线运动系统执行机构(91)是螺杆。
  26. 根据权利要求25所述的激振器，其特征在于，所述第二偏心体(2)设有与所述第一轴承(41)同轴心的第二轴孔(21)；连接轴(5)和所述第二轴孔(21)通过螺旋凹槽和与所述螺旋凹槽配合的凸台结构连接。
  27. 根据权利要求26所述的激振器，其特征在于，所述第一偏心体(1)和所述第二偏心体(2)右侧设有右端盖(3)，所述右端盖(3)与所述第一偏心体(1)固定连接；所述右端盖(3)与所述第一轴承(41)外圈的右侧面紧贴合；所述右端盖(3)设有与所述第一轴承(41)同轴心的第三轴孔(31)；所述连接轴(5)和所述第三轴孔(31)通过直线凹槽和与所述直线凹槽配合的凸台结构连接。
  28. 根据权利要求27所述的激振器，其特征在于，所述激振箱(6)与所述激振电机(8)连接处开设第一通孔，所述激振电机(8)的输出轴穿过所述第一通孔后固定在所述第一偏心体(1)左轴台(10)的第一轴孔(11)内；所述左轴台(10)外周面与所述第一通孔之间设置第三轴承(14)。
  29. 根据权利要求28所述的激振器，其特征在于，所述激振箱(6)设有激 振箱盖(7)，所述伺服直线运动系统(9)与所述激振箱盖(7)固定连接；所述激振箱盖(7)开设激振箱盖通孔(71)。
  30. 根据权利要求29所述的激振器，其特征在于，所述右端盖(3)与所述第一轴承(41)同轴心的第三轴孔(31)右侧设有右端盖轴台(34)，所述右端盖轴台(34)与所述激振箱盖通孔(71)之间设置第四轴承(141)。
  31. 根据权利要求30所述的激振器，其特征在于，所述伺服直线运动系统(9)是液压缸，所述伺服直线运动系统执行机构(91)是液压杆。
  32. 根据权利要求30所述的激振器，其特征在于，所述伺服直线运动系统(9)是气缸，所述伺服直线运动系统执行机构(91)是气缸杆。
  33. 根据权利要求28-32任意一项所述的激振器，其特征在于，所述激振电机(8)的输出轴通过键槽配合固定在所述第一偏心体(1)左轴台(10)的第一轴孔(11)内。
  34. 根据权利要求33所述的激振器，其特征在于，所述第一偏心体(1)的内圆周表面向远离轴心的方向上设有第一内台阶面(12)，所述第二偏心体(2)的外圆周表面向靠近轴心的方向上设有第一外台阶面(22)，所述第一内台阶面(12)和所述第一外台阶面(22)形成第一台阶面，所述第一轴承(41)内、外圈左侧面坐落于所述第一台阶面上。
  35. 根据权利要求34所述的激振器，其特征在于，在所述第二偏心体(2)的外圆周表面上设置有挡圈(25)，所述挡圈(25)位于所述第一轴承(41)内圈右侧，所述挡圈(25)与所述第二偏心体(2)固定连接。
  36. 根据权利要求35所述的激振器，其特征在于，在所述第一偏心体(1)和所述第二偏心体(2)之间设置第二轴承(42)，所述第一偏心体(1)的所述内圆周表面向远离轴心的方向上设有第一内台阶面(12)，所述第二偏心体(2)的所述外圆周表面中间位置向远离轴心的方向上设有凸环(23)，所述凸环(23)的左侧台阶面与所述第一内台阶面(12)之间形成容纳所述第二轴承(42)的空间，所述凸环(23)的右侧台阶面与所述右端盖(3)的压环(32)之间形成容纳所述第一轴承(41)的空间。
  37. 根据权利要求36所述的激振器，其特征在于，在所述第一轴承(41)外圈和所述第二轴承(42)外圈之间设置支撑环(43)。
  38. 根据权利要求37所述的激振器，其特征在于，所述连接轴(5)从左到右依次设置第一螺旋凹槽(51)和第一直线凹槽(52)；所述第二偏心体(2)的第二轴孔(21)内壁设置与所述第一螺旋凹槽(51)配合的第一凸台(24)；所述右端盖(3)的第三轴孔(31)内壁设置与所述第一直线凹槽(52)配合的第二凸台(33)。
  39. 根据权利要求38所述的激振器，其特征在于，所述第一凸台(24)至少有两个，设置在与所述第一螺旋凹槽(51)配合的轨迹线上；所述第二凸台(33)至少有两个，设置在与所述第一直线凹槽(52)配合的轨迹线上。
  40. 根据权利要求39所述的激振器，其特征在于，所述第二偏心体(2)的第二轴孔(21)内壁设置第二螺旋凹槽；所述右端盖(3)的第三轴孔(31)内壁设置第二直线凹槽；所述连接轴(5)从左到右依次设置与所述第二螺旋凹槽配合的第三凸台，和与所述第二直线凹槽配合的第四凸台。
  41. 根据权利要求40所述的激振器，其特征在于，所述第三凸台至少有两个，设置在与所述第二螺旋凹槽配合的轨迹线上；所述第四凸台至少有两个，设置在与所述第二直线凹槽配合的轨迹线上。
PCT/CN2020/105177 2019-08-09 2020-07-28 一种激振器 WO2021027557A1 (zh)

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