CN220597416U - Vibration device and incubator - Google Patents

Abstract

The application belongs to the technical field of experimental instruments, and particularly relates to an oscillating device and an incubator, wherein the oscillating device comprises a base, a motor, a rotating disc, an eccentric shaft, an oscillating plate and at least one connecting rod assembly; the motor is arranged on the base, the rotary disk is fixed on an output shaft of the motor, one end of the eccentric shaft is arranged on the rotary disk, the eccentric shaft is eccentrically arranged with the output shaft, the oscillating plate is parallel to the upper part of the base, and the other end of the eccentric shaft is rotationally connected with the oscillating plate; one end of the connecting rod assembly is hinged with the base ball, the other end of the connecting rod assembly is hinged with the oscillating slab ball, and the connecting rod assembly is configured to rotate along with the oscillating slab when the eccentric shaft drives the oscillating slab to rotate. The vibration device can reduce the occupied space of the vibration device and the assembly precision requirement, thereby reducing the manufacturing cost.

Description

Vibration device and incubator

Technical Field

The application belongs to the technical field of experimental instruments, and particularly relates to a vibration device and an incubator.

Background

The incubator is a temperature-controllable box body device mainly used for culturing microorganisms, plants and animal cells, and a refrigerating and heating bidirectional temperature regulating system is basic experimental equipment of scientific research departments such as biology, agriculture, medicine, environmental protection and the like, and is widely applied to experiments such as constant temperature culture, constant temperature reaction and the like.

The shake incubator is an incubator with shake device, mainly used shakes the sample in the incubator, and current drive mode that shakes the incubator mainly falls into two kinds, and one is belt motor drive, and another is linear guide drive.

However, the driving mode of the belt motor occupies a large space and generates large noise during operation; the linear guide rail driving mode has higher requirement on assembly precision and higher manufacturing cost.

Disclosure of Invention

In order to solve the above-mentioned problem among the prior art, this application provides a vibrating device and incubator, can reduce occupation space and the assembly accuracy requirement of driving mode to manufacturing cost has been reduced.

In one aspect, an embodiment of the present application provides an oscillating device, including a base, a motor, a rotating disc, an eccentric shaft, an oscillating plate, and at least one connecting rod assembly;

the motor is arranged on the base, the rotary disk is fixed on an output shaft of the motor, one end of the eccentric shaft is arranged on the rotary disk, the eccentric shaft is eccentrically arranged with the output shaft, the oscillating plate is parallel to the upper part of the base, and the other end of the eccentric shaft is rotationally connected with the oscillating plate;

one end of the connecting rod assembly is hinged with the base ball, the other end of the connecting rod assembly is hinged with the oscillating slab ball, and the connecting rod assembly is configured to rotate along with the oscillating slab when the eccentric shaft drives the oscillating slab to rotate.

Through adopting above-mentioned technical scheme, when needs start oscillation device, the starter motor, the output shaft of motor drives the rotary disk and rotates, and the rotary disk drives the eccentric shaft and rotates, and the eccentric shaft drives the oscillating plate and does the reciprocal oscillating motion of horizontal direction, and the oscillating plate drives link assembly and follows and rotate.

Through setting up motor, rotary disk and eccentric shaft, not only realized oscillating device's shock function, reduced the shared space size of oscillating device and manufacturing cost moreover. The connecting rod assembly plays a supporting role on the oscillating plate, so that stability of the oscillating plate in an oscillating process is improved, and bearing capacity of the oscillating plate is improved.

In the preferred technical scheme of the oscillation device, the distance between the projection of the other end of the connecting rod assembly towards the base and one end of the connecting rod assembly is equal to the eccentric distance between the eccentric shaft and the output shaft.

Through adopting above-mentioned technical scheme, make link assembly can use link assembly's the other end as center of rotation, follow and vibrate the board and move together, improve the stability that vibrates the board motion. And in the process that the connecting rod assembly follows the motion of the oscillating plate, the connecting rod assembly can provide a supporting force for the oscillating plate, and the bearing capacity of the oscillating plate is improved.

In the preferred technical scheme of the oscillation device, the connecting rod assembly comprises a connecting rod, two ball heads and two ball seats, wherein the two ball heads are respectively positioned at two opposite ends of the connecting rod, the two ball seats are respectively positioned on opposite end surfaces of the base and the oscillation plate, and the opposite ball heads are rotationally embedded in the ball seats.

Through adopting above-mentioned technical scheme, the bulb rotates to inlay and establishes in the ball seat, makes bulb and ball seat be the spherical articulated relation of connection, at the shake board motion in-process, shake the board and drive the ball seat at first and remove, the ball seat drives the bulb and removes together, at the in-process that removes, the relative position of bulb and ball seat can change to drive the connecting rod and remove, and then drive the bulb that is located on the base and remove. In this process, the length between connecting rod, bulb and the ball seat is unchangeable, can play the effect of a support to the vibration board, has improved stability and the bearing capacity of vibration board motion.

In the preferred technical scheme of the oscillation device, the rotary disc is provided with at least two eccentric holes, the eccentric distances between the eccentric holes and the output shaft are different, the eccentric shaft is detachably arranged in the eccentric holes, and the length of the connecting rod is adjustable.

Through adopting above-mentioned technical scheme, when need to vibrate the amplitude of oscillation of board and adjust, need adjust the eccentric shaft for the eccentric distance, dismantle the eccentric shaft from the eccentric hole for, then install in another eccentric hole, then adjust the length of connecting rod to with the eccentric distance assorted of eccentric shaft adjustment. The oscillating plate can oscillate with different amplitudes, and the application range of the oscillating device is increased.

In the preferred technical scheme of the oscillating device, the connecting rod comprises a first connecting rod, a loop bar and a second connecting rod, wherein the first connecting rod and the second connecting rod are positioned at two opposite ends of the loop bar, the first connecting rod and the second connecting rod are respectively in threaded connection with the loop bar, and the two ball heads are respectively arranged at one ends of the first connecting rod and the second connecting rod, which are opposite to each other.

Through adopting above-mentioned technical scheme, when the length of need adjustment connecting rod, fixed loop bar, then revolve at least one of twisting first connecting rod and second connecting rod both, can realize the adjustment to connecting rod length, the user of being convenient for adjusts the length of connecting rod according to the eccentric distance after the adjustment.

In the preferred technical scheme of the oscillation device, the vibration device further comprises a balancing weight, wherein the balancing weight is arranged on the rotating disc, and the balancing weight and the eccentric shaft are respectively positioned on two opposite sides of the rotating axis of the rotating disc.

Through adopting above-mentioned technical scheme, the rotary disk is driving eccentric shaft pivoted in-process, and the eccentric shaft can produce certain eccentric force, in order to improve the stability of rotary disk in the motion process, installs the balancing weight in one side of rotary disk, and the generated eccentric force of balancing weight offsets with the generated eccentric force of eccentric shaft, effectively balances the generated relation of rotary disk motion, has improved whole oscillating device's stability.

In the preferred technical scheme of the oscillation device, the vibration device further comprises a mounting piece, wherein the mounting piece is at least partially positioned on the outer side of the rotating disc, at least one of the rotating disc and the output shaft is connected with the mounting piece, and the balancing weight is mounted on the mounting piece.

Through adopting above-mentioned technical scheme, the mounting provides mounting platform for the installation of balancing weight, and the user of being convenient for installs the balancing weight in one side of rotary disk.

In the preferred technical scheme of the vibration device, the balancing weight comprises a plurality of balancing weight pieces, the balancing weight pieces are sequentially stacked along the axis direction of the rotating disc, and the balancing weight pieces are detachably mounted on the mounting piece through bolts.

Through adopting above-mentioned technical scheme, a plurality of counter weight pieces stack in proper order and splice and form the balancing weight, and the user can be according to actual need, adjusts the quantity of counter weight piece to the weight of adjustment balancing weight makes the balancing weight can be applicable to different application scenario.

In the preferred technical scheme of the oscillating device, the oscillating plate is provided with a mounting hole, a connecting bearing is arranged in the mounting hole, and the eccentric shaft is rotationally connected with the oscillating plate through the connecting bearing.

Through adopting above-mentioned technical scheme, the eccentric shaft passes through connecting bearing and shake the board and link to each other, not only is convenient for install the eccentric shaft on shake the board, has still reduced the rotation frictional force between eccentric shaft and the shake board moreover.

In a second aspect, the application provides an incubator, including box and the oscillating device in any one of the above-mentioned technical schemes, oscillating device installs in the box.

It can be appreciated by those skilled in the art that embodiments of the present application provide a shaker and incubator. In the technical scheme that this application embodiment provided, through setting up motor, rotary disk and eccentric shaft, realized the reciprocal vibration to oscillating plate, motor, rotary disk and eccentric shaft occupied space are less, have reduced the required size of the shared space of oscillating device and assembly accuracy to oscillating device manufacturing cost has been reduced. Through setting up link assembly, improved the stability of oscillating board at the in-process of concussion, improved the bearing capacity of oscillating board moreover.

Drawings

The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application, and, as will be apparent to those skilled in the art, are directed to some embodiments of the application and from which additional drawings may be derived without the exercise of inventive faculty.

Fig. 1 is a schematic structural diagram of an oscillating device according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of an oscillating device according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a connecting rod assembly in the oscillating device according to the embodiment of the present application;

fig. 4 is a schematic structural diagram of a rotating disc and an eccentric hole in an oscillating device according to an embodiment of the present disclosure.

Reference numerals:

100-base;

200-motors;

300-rotating the disc; 310-eccentric holes;

400-eccentric shaft;

600-oscillating plate; 610-mounting holes; 620-connecting a bearing;

700-linkage assembly; 710-connecting rod; 711-first link; 712-loop bar; 713-a second link; 720-ball head; 730-ball seat;

800-balancing weight; 810-weight stack;

900-mount.

Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is apparent that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims of this application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example.

In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

As described above in the background art, the incubator is a temperature-controllable box device mainly used for culturing microorganisms, plants and animal cells, and some incubator has a refrigerating and heating bidirectional temperature regulating system, is basic experimental equipment for scientific research departments such as biology, agriculture, medicine, environmental protection and the like, and is widely applied to experiments such as constant temperature culture, constant temperature reaction and the like.

The shake incubator is an incubator with shake device, mainly used shakes the sample in the incubator, and current drive mode that shakes the incubator mainly falls into two kinds, and one is belt motor drive, and another is linear guide drive.

However, the driving mode of the belt motor occupies a large space and generates large noise during operation; the linear guide rail driving mode has higher requirement on assembly precision and higher manufacturing cost.

In order to improve or solve the technical problem, the embodiment of the application provides an oscillating device, and in the technical scheme that this application embodiment provided, through setting up motor, rotary disk and eccentric shaft, realized the reciprocal vibration to oscillating plate, the shared space of motor, rotary disk and eccentric shaft is less, has reduced the required size of the shared space of oscillating device and assembly accuracy to oscillating device manufacturing cost has been reduced. Through setting up link assembly, improved the stability of oscillating board at the in-process of concussion, improved the bearing capacity of oscillating board moreover.

The oscillating device provided in the embodiments of the present application is described in detail below with reference to fig. 1 to 4.

Referring to fig. 1 and 2, an oscillating device is provided in the embodiments of the present application, and includes a base 100, a motor 200, a rotating disc 300, an eccentric shaft 400, an oscillating plate 600, and at least one connecting rod assembly 700.

The motor 200 is installed on the base 100, the rotary disk 300 is fixed on the output shaft of the motor 200, one end of the eccentric shaft 400 is installed on the rotary disk 300, the eccentric shaft 400 and the output shaft are eccentrically arranged, the oscillating plate 600 is positioned above the base 100 in parallel, and the other end of the eccentric shaft 400 is rotationally connected with the oscillating plate 600.

One end of the link assembly 700 is ball-hinged with the base 100, and the other end is ball-hinged with the oscillating plate 600, and the link assembly 700 is configured to follow the oscillating plate 600 to rotate when the eccentric shaft 400 drives the oscillating plate 600 to rotate.

Illustratively, the base 100 is horizontally arranged, the oscillating plate 600 is located above the base 100 in parallel, the motor 200 is a direct-drive motor, the motor 200 is installed on one side of the base 100, two connecting rod assemblies 700 are provided, and two connecting rod assemblies 700 are symmetrically arranged on the other side of the base 100.

Through adopting above-mentioned technical scheme, when needs start oscillation device, start motor 200, motor 200's output shaft drives rotary disk 300 and rotates, and rotary disk 300 drives eccentric shaft 400 and rotates, and eccentric shaft 400 drives oscillating plate 600 and does the reciprocal oscillating motion of horizontal direction, and oscillating plate 600 drives link assembly 700 and follows the rotation.

By arranging the motor 200, the rotary disc 300 and the eccentric shaft 400, not only is the oscillating function of the oscillating device realized, but also the size of the space occupied by the oscillating device and the manufacturing cost are reduced. The arrangement of the connecting rod assembly 700 plays a supporting role on the oscillating plate 600, so that the stability of the oscillating plate 600 in the oscillating process is improved, and the bearing capacity of the oscillating plate 600 is improved.

Referring to fig. 1 and 2, in some embodiments provided herein, an exemplary distance between a projection of the other end of the connecting rod assembly 700 toward the base 100 and one end of the connecting rod assembly 700 is equal to an eccentricity between the eccentric shaft 400 and the output shaft.

Through adopting above-mentioned technical scheme, make link assembly 700 can use link assembly 700's the other end as center of rotation, follow and vibrate board 600 and move together, improve the stability that vibrates board 600 motion. And in the process that the connecting rod assembly 700 follows the oscillating plate 600, the connecting rod assembly 700 can provide a supporting force for the oscillating plate 600, so that the bearing capacity of the oscillating plate 600 is improved.

Referring to fig. 3, in some embodiments provided herein, an exemplary connecting rod assembly 700 includes a connecting rod 710, two ball heads 720 and two ball seats 730, wherein the two ball heads 720 are respectively located at opposite ends of the connecting rod 710, the two ball seats 730 are respectively located on opposite end surfaces of the base 100 and the oscillating plate 600, and the opposite ball heads 720 are rotatably embedded in the ball seats 730.

Illustratively, the base 100 and the oscillating plate 600 have mounting holes 610 on opposite end surfaces thereof, and the ball seat 730 is screwed with the mounting holes 610. Thereby facilitating the installation of ball seat 730 on base 100 and oscillating plate 600.

Through adopting above-mentioned technical scheme, ball head 720 rotates to inlay and establishes in ball seat 730, makes ball head 720 and ball seat 730 be the spherical hinge's relation of connection, and in oscillating plate 600 motion in-process, oscillating plate 600 at first drives ball seat 730 and removes, and ball seat 730 drives ball head 720 and removes together. During the movement, the relative positions of the ball 720 and the ball seat 730 are changed, so as to drive the connecting rod 710 to move, and further drive the ball 720 on the base 100 to move. In this process, the length among the connecting rod 710, the ball head 720 and the ball seat 730 is unchanged, which can play a supporting role on the oscillating plate 600, and improve the stability and bearing capacity of the oscillating plate 600.

Referring to fig. 4, in some embodiments provided herein, by way of example, the rotating disc 300 has at least two eccentric holes 310, each eccentric hole 310 has a different eccentricity from the output shaft, the eccentric shaft 400 is detachably mounted in the eccentric hole 310, and the length of the connecting rod 710 is adjustable.

Illustratively, the rotating disc 300 has two eccentric holes 310 thereon, and the eccentric shaft 400 is screw-coupled to the eccentric holes 310.

By adopting the above technical scheme, when the oscillation amplitude of the oscillating plate 600 needs to be adjusted, the eccentric shaft 400 needs to be adjusted in eccentricity, the eccentric shaft 400 is detached from the eccentric hole 310 and then is installed in another eccentric hole 310, and then the length of the connecting rod 710 is adjusted to be matched with the eccentricity adjusted by the eccentric shaft 400. The oscillating plate 600 can oscillate with different amplitudes, which increases the application range of the oscillating device.

Referring to fig. 3, in some embodiments provided herein, an exemplary connecting rod 710 includes a first connecting rod 711, a sleeve 712, and a second connecting rod 713, the first connecting rod 711 and the second connecting rod 713 are located at opposite ends of the sleeve 712, the first connecting rod 711 and the second connecting rod 713 are respectively in threaded connection with the sleeve 712, and two ball heads 720 are respectively mounted at opposite ends of the first connecting rod 711 and the second connecting rod 713.

Through the above technical scheme, when the length of the connecting rod 710 needs to be adjusted, the loop bar 712 is fixed, and then at least one of the first connecting rod 711 and the second connecting rod 713 is screwed, so that the adjustment of the length of the connecting rod 710 can be realized, and the user can conveniently adjust the length of the connecting rod 710 according to the adjusted eccentricity.

Referring to fig. 1 and 2, in some embodiments provided herein, the oscillating device further includes a balancing weight 800, the balancing weight 800 is mounted on the rotating disc 300, and the balancing weight 800 and the eccentric shaft 400 are respectively located on opposite sides of the rotation axis of the rotating disc 300.

Through adopting above-mentioned technical scheme, rotary disk 300 is driving eccentric shaft 400 pivoted in-process, and eccentric shaft 400 can produce certain eccentric force, in order to improve rotary disk 300 stability in the motion process, installs balancing weight 800 in one side of rotary disk 300, and the eccentric force that balancing weight 800 produced offsets with the eccentric force that eccentric shaft 400 produced, effectively balances rotary disk 300 motion produced the relation, has improved whole oscillating device's stability.

Referring to fig. 1 and 2, in some embodiments provided herein, the oscillating device further includes a mounting member 900, the mounting member 900 is at least partially located outside the rotating disc 300, at least one of the rotating disc 300 and the output shaft is connected to the mounting member 900, and the balancing weight 800 is mounted on the mounting member 900.

Illustratively, the mounting member 900 is a mounting plate that is coaxially disposed with the rotating disk 300, and is at least partially located outside of the rotating disk 300, and is detachably connected to the rotating disk 300 by bolts.

By adopting the above technical scheme, the mounting member 900 provides a mounting platform for the installation of the balancing weight 800, so that a user can conveniently install the balancing weight 800 on one side of the rotating disc 300.

Referring to fig. 1 and 2, in some embodiments provided herein, an exemplary weight 800 includes a plurality of weight plates 810, the weight plates 810 are sequentially stacked along an axial direction of the rotating disc 300, and the weight plates 810 are detachably mounted on the mounting member 900 by bolts.

Through adopting above-mentioned technical scheme, a plurality of counter weight pieces 810 stack in proper order and splice and form balancing weight 800, and the user can be according to actual need, adjusts the quantity of counter weight piece 810 to the weight of adjustment balancing weight 800 makes balancing weight 800 can be applicable to different application scenario.

Referring to fig. 1 and 2, in some embodiments provided herein, an exemplary oscillating plate 600 has a mounting hole 610, a connecting bearing 620 is disposed in the mounting hole 610, and an eccentric shaft 400 is rotatably connected to the oscillating plate 600 through the connecting bearing 620.

Through adopting above-mentioned technical scheme, eccentric shaft 400 links to each other with oscillating plate 600 through connecting bearing 620, not only is convenient for install eccentric shaft 400 on oscillating plate 600, but also has reduced the rotatory frictional force between eccentric shaft 400 and the oscillating plate 600.

The application also provides an incubator, including box and the oscillating device of any one of the above-mentioned technical scheme, oscillating device installs in the box.

The structure and the use principle of the oscillating device are already described in the above technical solutions, and are not described here.

Illustratively, the base plate of the oscillating device is mounted on the inner bottom wall of the case by bolts. In summary, the embodiment of the application provides an oscillating device, in the technical scheme that this application provided, through setting up motor 200, rotary disk 300 and eccentric shaft 400, realized the reciprocal vibration to oscillating plate 600, motor 200, rotary disk 300 and eccentric shaft 400 occupy the space less, reduced the required size of the shared space of oscillating device and assembly accuracy to oscillating device manufacturing cost has been reduced. By arranging the connecting rod assembly 700, the stability of the oscillating plate 600 in the oscillating process is improved, and the bearing capacity of the oscillating plate 600 is improved.

In this specification, each embodiment or implementation is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Generally, terms should be understood at least in part by use in the context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, at least in part depending on the context. Similarly, terms such as "a" or "an" may also be understood to convey a singular usage or a plural usage, depending at least in part on the context.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).

Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. The oscillating device is characterized by comprising a base, a motor, a rotating disc, an eccentric shaft, an oscillating plate and at least one connecting rod assembly;

the motor is arranged on the base, the rotary disk is fixed on an output shaft of the motor, one end of the eccentric shaft is arranged on the rotary disk, the eccentric shaft and the output shaft are eccentrically arranged, the oscillating plate is positioned above the base in parallel, and the other end of the eccentric shaft is rotationally connected with the oscillating plate;

one end of the connecting rod assembly is hinged with the base ball, the other end of the connecting rod assembly is hinged with the oscillating cricket, and the connecting rod assembly is configured to follow the oscillating plate to rotate when the eccentric shaft drives the oscillating plate to rotate.

2. The oscillating device as defined in claim 1, wherein a distance between a projection of the other end of said connecting rod assembly toward said base and one end of said connecting rod assembly is equal to an eccentricity between said eccentric shaft and said output shaft.

3. The oscillating device as defined in claim 1, wherein said connecting rod assembly includes a connecting rod, two balls and two balls, said two balls being located at opposite ends of said connecting rod, said two balls being located on opposite end surfaces of said base and said oscillating plate, said opposite balls being rotatably embedded in said balls.

4. A vibration apparatus according to claim 3, wherein the rotary disc has at least two eccentric holes, each of which has a different eccentricity from the output shaft, the eccentric shaft being detachably mounted in the eccentric hole, and the connecting rod being adjustable in length.

5. The oscillating device as defined in claim 4, wherein said connecting rod includes a first connecting rod, a sleeve rod and a second connecting rod, said first connecting rod and said second connecting rod being located at opposite ends of said sleeve rod, said first connecting rod and said second connecting rod being respectively threadedly connected to said sleeve rod, two said balls being respectively mounted at opposite ends of said first connecting rod and said second connecting rod.

6. The oscillating device of claim 4, further comprising a counterweight mounted on the rotating disc, the counterweight and the eccentric shaft being located on opposite sides of the axis of rotation of the rotating disc, respectively.

7. The oscillating device of claim 6, further comprising a mounting member at least partially outboard of the rotating disc, at least one of the rotating disc and the output shaft being coupled to the mounting member, the counterweight being mounted on the mounting member.

8. The oscillating device of claim 7, wherein the weight comprises a plurality of weight plates, the weight plates are sequentially stacked along the axial direction of the rotating disc, and the weight plates are detachably mounted on the mounting member through bolts.

9. The oscillating device as defined in any one of claims 1-8, wherein said oscillating plate has a mounting hole, a connecting bearing is disposed in said mounting hole, and said eccentric shaft is rotatably connected to said oscillating plate through said connecting bearing.

10. An incubator comprising a housing and an oscillating device according to any one of claims 1 to 9, said oscillating device being mounted in said housing.