CN111373932A - Reciprocating branch frequency-conversion amplitude-variation vibration mechanism and operation method thereof - Google Patents
Reciprocating branch frequency-conversion amplitude-variation vibration mechanism and operation method thereof Download PDFInfo
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- CN111373932A CN111373932A CN202010126243.5A CN202010126243A CN111373932A CN 111373932 A CN111373932 A CN 111373932A CN 202010126243 A CN202010126243 A CN 202010126243A CN 111373932 A CN111373932 A CN 111373932A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D46/00—Picking of fruits, vegetables, hops, or the like; Devices for shaking trees or shrubs
- A01D46/26—Devices for shaking trees or shrubs; Fruit catching devices to be used therewith
- A01D46/264—Devices for beating or vibrating the foliage; Fruit catching devices to be used therewith
Abstract
The invention discloses a reciprocating type branch frequency-conversion amplitude-variation vibration mechanism and an operation method thereof. The invention is mainly used for researching the biomechanical characteristics of plant branches in agricultural engineering, and is used for exploring the vibration response condition and the vibration attenuation characteristic of various plant branches under preset frequency, amplitude, different frequencies and amplitudes together with other kinematic parameter testing equipment, thereby providing theoretical design and related data information for the design of related agricultural machinery. Compared with the existing mechanism, the invention has the advantages of wide application range, low manufacturing cost, convenient and simple operation and the like.
Description
Technical Field
The invention relates to the field of mechanical devices, in particular to a mechanical structure for researching the biomechanical characteristics of branches and an operation method thereof, which are mainly used for researching the vibration attenuation characteristics of branches so as to guide the design of certain agricultural machinery.
Background
At present, the development of vibration mechanisms is well-classified and fine in application, and it is mainly different mechanisms designed for different applications, such as micro-oscillators used in laboratory departments (preparation companies, medical institutions, and epidemic prevention departments) and medical institutions for dispensing reagents or mixing reagents and samples, oscillators used in agricultural product detection, test tube centrifugal oscillation devices for chemical experiments, and the like, and these devices are almost used in the fields of medicine, chemistry, and construction machinery.
In the field of research on the biomechanical characteristics of branches, the function of a vibration mechanism is also important, and through research on the vibration attenuation characteristics of branches, for example, a vibration excitation is given to a certain position of a branch, and through other equipment such as a high-speed camera, the vibration response conditions of other positions of the branch are explored, and particularly, whether the vibration attenuation characteristics of the branch change when the vibration frequency and the vibration amplitude of a vibration source are changed or not can be researched, so that the design of some agricultural machinery can be further guided, for example: a vibrating medlar picking machine, a vibrating blueberry picking machine and the like.
The most different from the present application is the vibration mechanism of the branches which are available on the market. The vibration mechanism of the existing vibration structure is that branches are fixed together with a swing rod of the mechanism, and the branches do circumferential swing along with the swing rod, as shown in figure 1. The vibration mechanism of the present application is the reciprocating motion of the fingers, as shown in figure 2. The angle between the straight line direction of the branch and the straight line direction of the swing rod is distinguished, the two straight line directions of the swing type vibration mechanism are parallel, and the two straight line directions of the reciprocating type vibration mechanism are vertical.
To this end, the applicant has summarized the drawbacks of the known vibrating mechanisms:
(1) the application range is narrow. The existing vibration mechanism is mainly applied to cement stirring in medical treatment, preparation mechanisms and buildings and feed stirring in animal husbandry and breeding industries, and a vibration mechanism for researching branch vibration attenuation characteristics in agricultural engineering does not exist; (2) the existing vibration mechanism has a complex structure but limited functions; (3) the existing vibration mechanism mostly uses a linear motor and has high cost.
Disclosure of Invention
Aiming at the defects, the invention provides a reciprocating type branch frequency-conversion amplitude-variation vibration mechanism and an operation method thereof, which are used for researching the biomechanical characteristics of various branches in agricultural engineering together with other kinematic parameter testing equipment.
The technical scheme adopted for solving the technical problem is as follows:
reciprocating type branch frequency conversion luffing vibration mechanism, vibration structure includes the frame and installs motor, drive mechanism, vibration frequency adjustment mechanism, amplitude adjustment mechanism and branch fixed establishment on it, drive mechanism includes horizontal drive shaft, vertical transmission shaft, wherein horizontal drive shaft pass through the gear train with motor output shaft transmission is connected, vertical transmission shaft pass through bevel gear with horizontal drive shaft transmission is connected, amplitude adjustment mechanism installs in vertical transmission shaft top, and it includes rotatory goods of furniture for display rather than for use, sets up a plurality of amplitude regulation holes and reciprocating lever on rotatory goods of furniture for display rather than for use, the reciprocating lever is connected with rotatory goods of furniture for display rather than for use through the reciprocating lever power shaft that is fixed in the amplitude regulation hole, and be reciprocating motion under the drive of rotatory goods of furniture for display rather than for use, branch fixed establishment in reciprocating lever outside end department.
As an improvement of the above technical scheme, a sleeve I is fixed at the front end of the motor output shaft, a transmission gear is installed on the sleeve I, the horizontal transmission shaft is parallel to the motor output shaft, a sleeve II is fixed at a corresponding position on the horizontal transmission shaft, and a plurality of meshing gears with different transmission ratios are installed on the sleeve II.
As an improvement of the above technical scheme, the motor is mounted at the bottom of the frame through a motor guide plate, a transmission ratio adjusting track and a motor positioning hole are formed in the motor guide plate, a motor slider is arranged below the motor, a motor guide pin is arranged at the lower end of the motor slider, fixing bolts are arranged at two ends of the motor slider, when the motor slider is moved to enable the motor guide pin to move to a specified position in the transmission ratio adjusting track, the fixing bolts are screwed into the motor positioning hole, and at the moment, a transmission gear on an output shaft of the motor is meshed with a meshing gear on the horizontal transmission shaft, which corresponds to the transmission ratio, so that the adjustment of the vibration frequency of the local vibration mechanism.
As an improvement of the technical scheme, the transmission gear and the meshing gear are both straight toothed spur gears.
As an improvement of the technical scheme, the horizontal transmission shaft is horizontally arranged in the rack through a bearing support and a bearing, and the vertical transmission shaft is vertically arranged in the rack through a cross-shaped bracket and a bearing.
As the improvement of the technical scheme, the upper end of the vertical transmission shaft is sleeved with the rotary swing part, the rotary swing part is fixedly connected with the end cover through the longitudinal shaft, a plurality of amplitude adjusting holes with different rotating radiuses are formed in the rotary swing part, the inner side end of the reciprocating rod is provided with the sliding groove, the power shaft of the reciprocating rod penetrates through the amplitude adjusting holes, below the sliding groove is fixed in the amplitude adjusting holes corresponding to the amplitudes, and the limiting cap is installed above the power shaft of the reciprocating rod.
As an improvement of the above technical solution, the rack is provided with a slide rail of a reciprocating rod, and the reciprocating rod passes through the slide rail and reciprocates along with the rotary swing part under the restriction of the slide rail.
As an improvement of the above technical scheme, the branch fixing mechanism includes a branch clamp fixed below the end of the outer side of the reciprocating rod, the branch clamp is provided with a branch fixing groove, and the branch clamp fixes the branch through a butterfly nut.
As an improvement of the technical scheme, the groove shape of the branch fixing groove is a triangular groove, and a three-point branch self-adaptive fixing structure is formed by two sides of the groove and a butterfly nut.
The application also provides an operation method of the reciprocating branch frequency conversion and amplitude variation vibration mechanism, which is applied to any one of the reciprocating branch frequency conversion and amplitude variation vibration mechanisms, and the operation method comprises the following steps:
the method comprises the following steps of firstly, completing installation of a reciprocating branch variable-frequency variable-amplitude vibration mechanism according to preset frequency and amplitude, wherein the preset frequency is adjusted by changing the gear train transmission ratio of a vibration frequency adjusting mechanism, and the gear train transmission ratio range is 1: 1. 1: 2. 1: 3. 1: 4; the preset amplitude is adjusted by changing the position of a reciprocating rod power shaft of an amplitude adjusting mechanism fixed on an amplitude adjusting hole, and the amplitude adjusting range of the amplitude adjusting hole is 5-10 cm;
step two, fixing the branches through a branch fixing mechanism;
step three, starting a motor to enable a fixed end of the branch to perform simple harmonic vibration with preset frequency and amplitude so as to drive the whole branch to vibrate, researching vibration response conditions of other positions of the branch under the preset frequency and amplitude in the process, then closing the motor, and researching vibration attenuation characteristics of the branch under the preset frequency and amplitude in the process;
and step four, repeating the step one to the step three, and researching the vibration attenuation characteristics of the branches under different frequencies and amplitudes in the process.
Compared with the prior art, the method has the following beneficial effects:
(1) the application range is wide. The vibration mechanism can be used for researching the biomechanical characteristics of branches in agricultural engineering. The invention can be applied to the industries and also solves the problem of researching the branch vibration attenuation characteristic in agricultural engineering;
(2) the manufacturing cost is low. The existing vibration mechanism mostly uses a linear motor, so that the cost is high, and the AC variable-frequency speed-regulating motor used in the invention has lower price than the linear motor, and is convenient to maintain and good in durability;
(3) the operation is convenient and simple. The method is convenient and simple to operate on the fixation of the branches and the adjustment of frequency and amplitude, and is beneficial to the research of the biomechanical characteristics of various branches.
Wherein, the vibration frequency adjustment mechanism: the gear train designed by the invention can adjust the output rotating speed of the motor so as to control the reciprocating frequency of the actuating mechanism, the adjustment of the vibration frequency is mainly realized by the vibration frequency adjusting mechanism, and the vibration frequency of branches is controlled by operating the mechanical transmission structure;
an amplitude adjusting mechanism: studying the amplitude attenuation of the branches is an important content of branch vibration attenuation. The invention designs an evolved crank slider mechanism, realizes the adjustment of the amplitude by adjusting the position of an amplitude adjusting hole which is fixed on a rotary swing part by a rotary power shaft, and has simple and convenient operation;
self-adaptation branch fixed establishment: in order to fix branches with different diameters, the invention designs a three-point branch self-adaptive fixing structure, after the branches are inserted into the branch fixing grooves, the branches can be fixed by rotating the butterfly nuts, and the operation is simple.
The invention is mainly used for researching the biomechanical characteristics of plant branches in agricultural engineering, and exploring the vibration response condition and the vibration attenuation characteristic of various plant branches under preset frequency, amplitude, different frequencies and amplitudes, thereby providing theoretical design and related data information for the design of related agricultural machinery.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments,
FIG. 1 is a schematic diagram of a swing type branch vibration mechanism model;
FIG. 2 is a schematic diagram of a reciprocating type twig vibration mechanism model;
FIG. 3 is a schematic structural view of a reciprocating branch frequency-variable amplitude-variable vibration mechanism of the present application;
FIG. 4 is a schematic structural diagram of a vibration frequency adjustment mechanism of the present application;
FIG. 5 is a schematic diagram of the structure of the motor guide plate in the present application;
FIG. 6 is a schematic view of the installation structure of the motor and the motor guide plate in the present application;
FIG. 7 is a schematic view of a transmission structure of a horizontal transmission shaft and a vertical transmission shaft in the present application;
FIG. 8 is a schematic view of the amplitude adjustment mechanism of the present application;
FIG. 9 is a schematic view of a rotary pendulum structure of the present application;
FIG. 10 is a schematic view of the construction of the shoot fixation mechanism of the present application;
FIG. 11 is a schematic view of a wicker clip according to the present application;
wherein:
the machine frame comprises a machine frame main body frame 11, a top cover 12, a central cross bracket 13, a motor guide plate 21, a motor slide block 22, a motor guide pin 23, a transmission gear 31, a horizontal transmission shaft 32, a meshing gear 33, a vertical transmission shaft 34, a bevel gear 35, a transmission ratio adjusting track 41, a motor positioning hole 42, a rotary swing part 51, an amplitude adjusting hole 52, a reciprocating rod 53, a reciprocating rod slide rail 54 and a branch clamp 61.
Detailed Description
Example 1
Referring to fig. 3, the reciprocating type branch frequency conversion and amplitude variation vibration mechanism mainly comprises a frame, and a motor, a transmission mechanism, a vibration frequency adjusting mechanism, an amplitude adjusting mechanism and a branch fixing mechanism which are arranged on the frame.
The rack mainly comprises a rack main body frame 11, a top cover 12, a central cross support 13 and the like, the rack is used for supporting the whole mechanism, the top cover 12 is installed above the amplitude adjusting mechanism, and the central cross support 13 is used for positioning and supporting a bearing of the vertical transmission shaft 34.
Referring to fig. 4, the motor is installed at the bottom of the frame through the motor guide plate 21, the front end of the motor output shaft is fixed with a sleeve I, the sleeve I is provided with a transmission gear 31, the horizontal transmission shaft 32 is arranged in parallel with the motor output shaft, the sleeve II is fixed at the corresponding position on the horizontal transmission shaft, and the sleeve II is provided with a plurality of meshing gears 33 with different transmission ratios and used for being matched with the transmission gear 31.
Referring to fig. 5 to 6, a transmission ratio adjusting track 41 and a motor positioning hole 42 are formed in the motor guide plate 21, a motor slide block 22 is arranged below the motor, two motor guide pins 23 are arranged at the bottom of the motor slide block 22, and fixing bolts are arranged at two ends of the motor slide block. When the motor slider 22 is moved to move the motor guide pin 23 to a position with a specified transmission ratio in the transmission ratio adjusting track 41, the motor can be fixed by screwing the fixing bolt into the corresponding motor positioning hole 42 below. After the motor is fixed, a transmission gear 31 on the output shaft of the motor is just meshed with a meshing gear 33 on a horizontal transmission shaft 32, wherein the transmission gear has a corresponding transmission ratio.
Referring to fig. 7, the transmission mechanism includes a horizontal transmission shaft 32, a vertical transmission shaft 34, a gear train, necessary bearings, bearing holders, a sleeve, etc., and its main function is to convert the rotational motion of the motor into the reciprocating motion of a reciprocating rod 53. Firstly, the rotary motion of the motor is transmitted to the horizontal transmission shaft 32 through a gear train, and then the rotary motion of the horizontal transmission shaft 32 is reversed by 90 degrees through a bevel gear 35 and is converted into the rotary motion of the vertical transmission shaft 34; the rotary motion of the vertical drive shaft 34 is then converted via the rotary pendulum 51 (evolved slider-crank mechanism) into a reciprocating motion of the reciprocating rod 53, eventually resulting in a reciprocating motion of the fingers.
The vibration frequency adjusting mechanism realizes the adjustment of the vibration frequency through a mechanical structure, can reduce the requirement on the motor and has low cost. When the vibration frequency of the vibration mechanism needs to be adjusted, the fixing bolt of the motor slide block 22 is unscrewed, the locking of the motor slide block 22 is released, the handle of the motor slide block 22 is held to move in the transmission ratio adjusting track 41 under the guiding action of the two motor guide pins 23, and when the vibration frequency of the vibration mechanism is moved to a specified transmission ratio, the fixing bolt is screwed, so that the change of the vibration frequency of the vibration mechanism can be completed.
In this embodiment, the transmission ratio of the transmission ratio adjusting track 41 on the motor guide plate 21 from right to left is 1: 1. 1: 2. 1: 3. 1: 4.
referring to fig. 8-9, the amplitude adjusting mechanism is installed above the vertical transmission shaft 34, and the amplitude is adjusted through a mechanical structure, so that the operation is convenient and simple.
The amplitude adjusting mechanism comprises a rotary swing part 51, a plurality of amplitude adjusting holes 52 and a reciprocating rod 53, wherein the amplitude adjusting holes 52 and the reciprocating rod 53 are formed in the rotary swing part 51, and the reciprocating rod 53 is connected with the rotary swing part 51 through a power shaft of the reciprocating rod fixed in the amplitude adjusting holes 52 and is driven by the rotary swing part 51 to reciprocate.
The rotary swing member 51 is disposed at the upper end of the vertical transmission shaft 34 and is fixedly connected thereto through a longitudinal shaft end cap. The rotation radius of the plurality of amplitude adjustment holes 52 of the rotation swing portion 51 is different from each other, and corresponds to different amplitudes. The inner side end of the reciprocating rod 53 is provided with a sliding groove, a power shaft of the reciprocating rod penetrates through the sliding groove to be fixed in an amplitude adjusting hole 52 with the lower part corresponding to the amplitude, and a limiting cap is arranged above the power shaft of the reciprocating rod.
When the amplitude of the vibration mechanism needs to be changed, the reciprocating rod limiting cap is unscrewed, the locking of the reciprocating rod 53 is released, the reciprocating rod power shaft is taken out at the moment, and the reciprocating rod power shaft is inserted into the specified amplitude adjusting hole 52. In this embodiment, the amplitude adjustment range of the vibration mechanism is 5cm to 10 cm.
Meanwhile, a reciprocating bar sliding rail 54 is arranged on the frame, and a reciprocating bar 53 passes through the reciprocating bar sliding rail and reciprocates along with the rotary swing part 51 under the restriction of the reciprocating bar.
Referring to fig. 10 to 11, the branch fixing mechanism includes a branch clamp 61 fixed below the end of the outer side of the reciprocating rod 53, and the branch clamp 61 is provided with a branch fixing groove for fixing the branch by a butterfly nut. The groove shape of the branch fixing groove is a triangular groove, and a three-point branch self-adaptive fixing structure is formed by two sides of the groove and a butterfly nut. When the branch fixing device works, the butterfly nut is unscrewed, then a branch is placed into the branch fixing groove, and the butterfly nut is screwed tightly to complete the branch fixing.
Other structural details:
the transmission gear 31 and the meshing gear 33 are all spur gears.
The horizontal transmission shaft 32 is horizontally installed at the bottom of the frame through a bearing support and a bearing, and the vertical transmission shaft 34 is vertically installed in the frame through a cross-shaped bracket and a bearing.
The motor positioning holes 42 provided in the motor guide plate 21 are arranged in an inclined manner, the direction of inclination is toward the horizontal transmission shaft 32, and the number of the motor positioning holes 42 is equal to the number of the meshing gears 33. The plurality of amplitude adjustment holes 52 opened in the rotary swing portion 51 are formed in an arc-shaped arrangement (but not limited thereto).
Example 2
The embodiment provides an operation method of a reciprocating type branch frequency conversion and amplitude variation vibration mechanism, which is applied to the reciprocating type branch frequency conversion and amplitude variation vibration mechanism in the embodiment 1, and the operation method comprises the following steps:
step one, completing the installation of the reciprocating branch variable-frequency variable-amplitude vibration mechanism according to preset frequency and amplitude, wherein the regulation of the preset frequency is realized by changing the gear train transmission ratio of the vibration frequency regulation mechanism, and the gear train transmission ratio range is 1: 1. 1: 2. 1: 3. 1: 4; the preset amplitude is adjusted by changing the position of the reciprocating rod power shaft of the amplitude adjusting mechanism fixed on the amplitude adjusting hole 52, and the amplitude adjusting range of the amplitude adjusting hole 52 is 5 cm-10 cm;
step two, fixing the branches through a branch fixing mechanism;
step three, starting a motor to enable a fixed end of the branch to perform simple harmonic vibration with preset frequency and amplitude so as to drive the whole branch to vibrate, researching vibration response conditions of other positions of the branch under the preset frequency and amplitude in the process, then closing the motor, and researching vibration attenuation characteristics of the branch under the preset frequency and amplitude in the process;
and step four, repeating the step one to the step three, and researching the vibration attenuation characteristics of the branches under different frequencies and amplitudes in the process.
Example 3
A motor transmission and mounting structure can be used for conveniently adjusting the output transmission ratio of a motor.
Referring to fig. 4 to 6, the structure includes a motor, a motor guide plate 21, a motor output shaft and horizontal transmission shaft 32, and a gear train. The motor guide plate 21 is provided with a transmission ratio adjusting track 41 and a plurality of groups of motor positioning holes 42, a motor slide block 22 is arranged below the motor, the bottom of the motor slide block 22 is provided with two motor guide pins 23, and two ends of each motor guide pin are provided with fixing bolts. When the motor slider 22 is moved to move the motor guide pin 23 to a position with a specified transmission ratio in the transmission ratio adjusting track 41, the motor can be fixed by screwing the fixing bolt into the corresponding motor positioning hole 42 below.
The front end of an output shaft of the motor is fixed with a sleeve I, a transmission gear 31 is installed on the sleeve I, a horizontal transmission shaft 32 is arranged in parallel with the output shaft of the motor, a sleeve II is fixed on the sleeve I in a corresponding position, and a plurality of meshing gears 33 with different transmission ratios are installed on the sleeve II and used for being matched with the transmission gear 31.
After the motor is fixed, a transmission gear 31 on the output shaft of the motor is just meshed with a meshing gear 33 on a horizontal transmission shaft 32, wherein the transmission gear has a corresponding transmission ratio.
When the transmission ratio of the motor needs to be adjusted, the fixing bolt of the motor slide block 22 is unscrewed, the locking of the motor slide block 22 is released, the handle of the motor slide block 22 is held to move in the transmission ratio adjusting track 41 under the guiding action of the two motor guide pins 23, and when the motor slide block moves to the designated transmission ratio, the motor can be adjusted by screwing the fixing bolt to fix the motor.
The transmission ratio of the transmission ratio adjusting track 41 on the motor guide plate 21 from right to left is 1: 1. 1: 2. 1: 3. 1: 4.
the motor positioning holes 42 provided in the motor guide plate 21 are arranged in an inclined manner, the direction of inclination is toward the horizontal transmission shaft 32, and the number of the motor positioning holes 42 is equal to the number of the meshing gears 33.
While various embodiments of the present invention have been described above, it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above. It should be understood that the above-mentioned embodiments are not intended to limit the scope of the invention, but rather, all equivalent variations and modifications may be made within the scope of the invention as defined in the appended claims.
It should also be understood that although the present description has been described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as a whole to form other embodiments as would be understood by those skilled in the art.
Claims (10)
1. Reciprocating type branch frequency conversion becomes width of cloth vibration mechanism, its characterized in that: the vibration structure comprises a rack, and a motor, a transmission mechanism, a vibration frequency adjusting mechanism, an amplitude adjusting mechanism and a branch fixing mechanism which are arranged on the rack, wherein the transmission mechanism comprises a horizontal transmission shaft and a vertical transmission shaft, the horizontal transmission shaft is in transmission connection with a motor output shaft through a gear train, the vertical transmission shaft is in transmission connection with the horizontal transmission shaft through a bevel gear, the amplitude adjusting mechanism is arranged above the vertical transmission shaft and comprises a rotary swing part, a plurality of amplitude adjusting holes formed in the rotary swing part and a reciprocating rod, the reciprocating rod is connected with the rotary swing part through a reciprocating rod power shaft fixed in the amplitude adjusting holes and driven by the rotary swing part to reciprocate, and the branch fixing mechanism is arranged at the end of the outer side of the reciprocating rod.
2. The reciprocating branch frequency and amplitude conversion vibration mechanism according to claim 1, characterized in that: the front end of the motor output shaft is fixedly provided with a sleeve I, a transmission gear is arranged on the sleeve I, the horizontal transmission shaft is arranged in parallel with the motor output shaft, a sleeve II is fixed at a corresponding position on the horizontal transmission shaft, and a plurality of meshing gears with different transmission ratios are arranged on the sleeve II.
3. The reciprocating branch frequency and amplitude conversion vibration mechanism according to claim 2, characterized in that: the motor is installed at the bottom of the rack through the motor guide plate, the transmission ratio adjusting track and the motor positioning hole are formed in the motor guide plate, the motor sliding block is arranged below the motor, the motor guide pin is arranged at the lower end of the motor sliding block, the fixing bolts are arranged at two ends of the motor sliding block, when the motor sliding block is moved to enable the motor guide pin to move to a specified position in the transmission ratio adjusting track, the fixing bolts are screwed into the motor positioning hole, at the moment, the transmission gear on the motor output shaft is meshed with the meshing gear corresponding to the transmission ratio on the horizontal transmission shaft, and therefore the adjustment of the vibration frequency of the local vibration mechanism is achieved.
4. The reciprocating branch frequency and amplitude conversion vibration mechanism according to claim 2 or 3, characterized in that: the transmission gear and the meshing gear are straight-tooth cylindrical gears.
5. The reciprocating branch frequency and amplitude conversion vibration mechanism according to claim 1, characterized in that: the horizontal transmission shaft is horizontally arranged in the rack through a bearing support and a bearing, and the vertical transmission shaft is vertically arranged in the rack through a cross-shaped bracket and a bearing.
6. The reciprocating branch frequency and amplitude conversion vibration mechanism according to claim 1 or 5, characterized in that: vertical transmission shaft upper end is located to rotatory goods of furniture for display rather than for use cover to through axis of ordinates end cover and fixed connection, it is downthehole in a plurality of amplitude control of the radius of gyration diverse to set up on the rotatory goods of furniture for display rather than for use, the inboard end of reciprocating lever is provided with the sliding tray, reciprocating lever power shaft passes in the sliding tray is fixed in the amplitude control of the below corresponding amplitude, spacing cap is installed to reciprocating lever power shaft top.
7. The reciprocating branch frequency and amplitude conversion vibration mechanism according to claim 6, characterized in that: the rack is provided with a reciprocating rod sliding rail, the reciprocating rod penetrates through the rack and moves back and forth along with the rotary swing part under the restraint of the reciprocating rod.
8. The reciprocating branch frequency and amplitude conversion vibration mechanism according to claim 1, characterized in that: the branch fixing mechanism comprises a branch clamp fixed below the outer end of the reciprocating rod, a branch fixing groove is formed in the branch clamp, and the branch clamp can fix the branch through a butterfly nut.
9. The reciprocating branch frequency and amplitude conversion vibration mechanism according to claim 8, characterized in that: the groove shape of the branch fixing groove is a triangular groove, and a three-point branch self-adaptive fixing structure is formed by two sides of the groove and a butterfly nut.
10. The operation method of the reciprocating branch frequency conversion and amplitude variation vibration mechanism is applied to the reciprocating branch frequency conversion and amplitude variation vibration mechanism according to any one of claims 1 to 9, and is characterized in that: the operating method comprises the following steps:
the method comprises the following steps of firstly, completing installation of a reciprocating branch variable-frequency variable-amplitude vibration mechanism according to preset frequency and amplitude, wherein the preset frequency is adjusted by changing the gear train transmission ratio of a vibration frequency adjusting mechanism, and the gear train transmission ratio range is 1: 1. 1: 2. 1: 3. 1: 4; the preset amplitude is adjusted by changing the position of a reciprocating rod power shaft of an amplitude adjusting mechanism fixed on an amplitude adjusting hole, and the amplitude adjusting range of the amplitude adjusting hole is 5-10 cm;
step two, fixing the branches through a branch fixing mechanism;
step three, starting a motor to enable a fixed end of the branch to perform simple harmonic vibration with preset frequency and amplitude so as to drive the whole branch to vibrate, researching vibration response conditions of other positions of the branch under the preset frequency and amplitude in the process, then closing the motor, and researching vibration attenuation characteristics of the branch under the preset frequency and amplitude in the process;
and step four, repeating the step one to the step three, and researching the vibration attenuation characteristics of the branches under different frequencies and amplitudes in the process.
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