CN110585966B - Liquid medicine oscillating mixer with multiple combined motions - Google Patents
Liquid medicine oscillating mixer with multiple combined motions Download PDFInfo
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- CN110585966B CN110585966B CN201910888443.1A CN201910888443A CN110585966B CN 110585966 B CN110585966 B CN 110585966B CN 201910888443 A CN201910888443 A CN 201910888443A CN 110585966 B CN110585966 B CN 110585966B
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- cylindrical cam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
- B01F31/201—Holders therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/32005—Type of drive
- B01F35/3204—Motor driven, i.e. by means of an electric or IC motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/325—Driving reciprocating or oscillating stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/33—Transmissions; Means for modifying the speed or direction of rotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/22—Mixing of ingredients for pharmaceutical or medical compositions
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The invention discloses a liquid medicine oscillating mixer with various combined motions, which comprises: the motor is used for providing power for the oscillating mixer; the input end of the double-output planetary gear reducer is connected with the motor and comprises a primary output shaft and a secondary output shaft, the primary output shaft and the secondary output shaft are non-uniform-speed output shafts, and the primary output shaft and the secondary output shaft are coaxially arranged; the input shaft of the universal joint is connected with the primary output shaft, and the output shaft of the universal joint is provided with a guide structure; the cylindrical cam mechanism comprises a cylindrical cam driving wheel, a cam driven piece and a driven piece bracket, wherein the cylindrical cam driving wheel is sleeved on the output shaft and is in clearance fit with the output shaft; a wheel groove is processed on the side wall of the cylindrical cam driving wheel; the inner side of the cam follower is clamped into the wheel groove through a needle bearing, and the outer side of the cam follower is connected with the secondary output shaft through a follower bracket; and the tray is arranged on the output shaft of the universal joint and is positioned on the outer side of the cylindrical cam driving wheel.
Description
Technical Field
The invention particularly relates to a liquid medicine oscillating mixer with various combined motions.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
In the medical industry, when intravenous injection or intramuscular injection is carried out, in order to achieve a medical effect, medicines, nutrient substances and a solvent need to be fully mixed, and when the medicines and the nutrient substances are not fully dissolved, the intravenous puncture injection effect with high precision requirement is adversely affected. Medical staff need consume certain physical power when rocking bottled medicine and mixing by a wide margin, to medical institution's such as large-scale hospital central department that dispenses, all need accomplish large batch medicine medicament mixing operation every day, and the tradition is mixed and is shaken even mode and consume a large amount of manpowers to can not guarantee mixing efficiency and mixed effect, the promptness and the liquid medicine stability of the link of heavily influencing dispensing.
The inventor finds that the common liquid medicine vibrator on the market has the defects of small capacity, small vibration amplitude, long working time and poor adaptability. The medical dispensing industry urgently needs a high-speed and high-efficiency liquid medicine oscillating mixer which has large capacity and is suitable for various bottled medicaments.
Disclosure of Invention
In order to solve the technical problems in the prior art, an object of the present invention is to provide a liquid medicine oscillating mixer having various combined motions. The liquid medicine oscillating mixer can be used for quickly and efficiently mixing liquid medicines under different conditions.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a medical fluid oscillating mixer with multiple combined motions, comprising:
the motor is used for providing power for the oscillating mixer;
the input end of the double-output planetary gear reducer is connected with the motor and comprises a primary output shaft and a secondary output shaft, the primary output shaft and the secondary output shaft are non-uniform-speed output shafts, and the primary output shaft and the secondary output shaft are coaxially arranged;
the input shaft of the universal joint is connected with the primary output shaft, and the output shaft of the universal joint is provided with a guide structure;
the cylindrical cam mechanism comprises a cylindrical cam driving wheel, a cam driven piece and a driven piece bracket, wherein the cylindrical cam driving wheel is sleeved on the output shaft and is in clearance fit with the output shaft, so that the cylindrical cam driving wheel can reciprocate along the axial direction of the output shaft; a wheel groove is processed on the side wall of the cylindrical cam driving wheel;
the inner side of the cam follower is clamped into the wheel groove through a needle bearing, and the outer side of the cam follower is connected with the secondary output shaft through a follower support and a driven transmission cylinder;
the driven part bracket and the driven transmission cylinder are fixedly connected with each other at a set included angle, so that an input shaft and an output shaft of the universal joint form a set included angle;
and the tray is arranged on the output shaft of the universal joint and is positioned at the outer side of the cylindrical cam driving wheel, the tray is provided with a spring gland, and the top of the spring gland is limited by the end part of the output shaft of the universal joint.
Firstly, the universal joint is used for completing torque transmission of a crossed shaft and converting the rotation of a primary output shaft of the vertical speed reducer into the rotation of the output shaft; the output shaft drives the cylindrical cam driving wheel to rotate; the inclination angle of the output shaft is determined by the inclination angle of the joint of the driven part bracket and the driven transmission cylinder. The instantaneous speed of the unequal-speed universal joint is not fixed, and the instantaneous speed of the medicine bottle tray along with the rotation of the output shaft is not constant, so that the medicine liquid has a better shaking effect.
Because the cylindrical cam driving wheel and the driven piece support have a rotation speed difference, the cam driven piece and the driven piece support are relatively fixed in position, so that the cylindrical cam driving wheel and the driven piece support relatively rotate in the process, the needle roller bearing of the cam driven piece is forced to move along the wheel groove track of the cylindrical cam driving wheel, the cylindrical cam vibrates up and down along the output shaft of the universal joint, the cylindrical cam driven piece vibrates up and down, the tray is pushed to vibrate up and down, and then the liquid medicine in the tray is well mixed. The up-down oscillation frequency of the cylindrical cam driving wheel is influenced by the rotating speed difference between the cylindrical cam driving wheel and the driven part support and the curve period of the wheel groove, and the up-down oscillation amplitude is influenced by the curve amplitude of the wheel groove.
In addition, because the tray is installed on the output shaft of universal joint, the output shaft inclination of universal joint is by the inclination of follower support and driven transmission section of thick bamboo junction. Therefore, the output shaft of the universal joint can drive the tray to rotate along the conical surface in the rotating process, so that the swinging relative to the ground is realized, and the uniform mixing effect of the liquid medicine in the medicine bottle is further enhanced.
The tray can be used for placing a plurality of bottles of liquid medicines with various specifications, and the uniform mixing efficiency of the liquid medicines can be obviously improved.
In some embodiments, the guiding structure on the output shaft is a prism structure, and the inner wall of the cylindrical cam driving wheel is provided with an inner prism structure matched with the inner prism structure.
Prismatic structure can realize the block to the cylinder cam action wheel, prevents effectively that cylinder cam action wheel from following prismatic structure circumference's motion. And the prismatic structure and the clearance fit of interior prismatic structure can realize that cylindrical cam action wheel follows the axial motion of output shaft.
Further, the guide structure on the output shaft is a hexagonal prism structure.
In some embodiments, the spring gland comprises an upper gland, a lower gland and a plurality of gland springs, the upper gland and the lower gland are connected through the plurality of gland springs, the upper gland is arranged away from the tray and is positioned along the axial direction of the output shaft.
The upper gland of the spring gland is positioned, the lower gland of the spring gland presses the tray, the upper gland is connected with the lower gland through the gland spring, the spring gland can tightly press the tray, the medicine bottle in the tray is prevented from being thrown and taken off, the output shaft reciprocating motion of the universal joint can be carried along with the tray, and the mixing effect of the medicine liquid is not influenced.
Furthermore, the spring gland still includes folding cover, and folding cover sets up in spring gland's circumference. The folding cover can protect the inside of the spring gland, prevent the outside dust from entering the inside of the spring gland and also prevent the loss of the gland spring.
Furthermore, go up and be provided with radial cell body on the gland, install screens spring and screens steel ball in the radial cell body, the relevant position of the output shaft of universal joint is provided with the hoop recess, the hoop recess with the cooperation of screens steel ball realizes going up the location of gland.
Install the spring gland on the output shaft of universal joint, when the last gland of spring gland moved to the annular groove position department of output shaft, the screens steel ball was ejecting smoothly under the effect of screens spring, and the block is in annular groove, and the continuous motion of gland is gone up in the restriction, and then has realized the axial positioning of spring gland.
Furthermore, the spring pressing cover further comprises a locking hand wheel, and the locking hand wheel is matched with the external thread at the end part of the output shaft to fix the spring pressing cover.
The locking hand wheel is screwed on the external thread of the output shaft, so that the spring gland can be further fixed, and the axial movement and the slippage of the spring gland are prevented in the medicine mixing process.
In some embodiments, the number of layers of the tray is 2-7. The multilayer tray can realize the simultaneous placement of more medicine bottles and is favorable for improving the uniformly mixing efficiency of the liquid medicine.
Furthermore, the tray comprises a medicine bottle tray and a plurality of container seats, a plurality of threaded holes are formed in the medicine bottle tray, external threads are formed in the container seats, each container seat is installed in one threaded hole, and the specification parts of the container seats are different.
The medicine bottles with different sizes can be placed in different specifications of one part of the container seats, and the corresponding medicine bottle container seats only need to be replaced aiming at shaking up of various medicine bottles without replacing the medicine bottle trays, so that the universality of the whole device is ensured.
In some embodiments, the double-output planetary gear reducer further comprises a mounting base, and the mounting base is connected with a shell of the double-output planetary gear reducer through bolts. The mounting base is used for supporting the whole medicine mixing device.
The invention has the beneficial effects that:
(1) the invention has more complex movement, better effect on the vibration mixing of the liquid medicine, higher efficiency and shorter time.
(2) The servo motor can control the speed, so different rotating speeds can be adjusted according to the components of the liquid medicine, and different mixed liquid vibrating effects are achieved.
(3) The invention can place more medicine bottles at one time, has high efficiency, can place medicine bottles with various specifications and has good universality.
(4) Through an output of the motor shaft, the three motions of rotation, swing and oscillation can be converted, and the structure is ingenious.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view showing the overall structure of a liquid medicine oscillating mixer according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a dual output planetary gear reducer according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a speed reducer in an embodiment of the invention;
FIG. 4 is a main drive section shafting diagram in an embodiment of the present invention;
FIG. 5 is an enlarged view at I of FIG. 4;
FIG. 6 is a schematic view of a drive wheel of the cam mechanism in an embodiment of the present invention;
FIG. 7 is a schematic view of a vial tray in an embodiment of the present invention;
FIG. 8 is a schematic view of a vial receptacle according to an embodiment of the present invention;
FIG. 9 is a schematic perspective view of a spring cover in an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a top view of a spring gland in an embodiment of the present invention;
FIG. 11 is a full sectional view of a spring gland taken along the line A-A in an embodiment of the present invention.
The double-output planetary gear speed reducer comprises, by weight, 1 a motor, 2 a double-output planetary gear speed reducer, 3 a mounting base, 4 a main transmission part, 5 a tray, 6 a spring gland, 7, a locking hand wheel, 2-1 an input gear shaft, 2-2 elastic check rings, 2-3 a first bearing, 2-4 a second bearing, 2-5 a box body, 2-6 a mandrel, 2-7 a third bearing, 2-8 a planetary gear, 2-9 a first shaft sleeve, 2-10 a fourth bearing, 2-11 a planetary gear, 2-12 a fifth bearing, 2-13 a second shaft sleeve, 2-14 a mandrel, 2-15 an end cover, 2-16 a sixth bearing, 2-17 a seventh bearing, 2-18 a sealing ring, 2-19 a third shaft sleeve, 2-20 a third shaft sleeve, 2-14 a second shaft sleeve, 2-14 a mandrel, 2-15 an end cover, 2-16 a sixth bearing, 2-17 a seventh bearing, 2-18 a sealing ring, 2-19 a third shaft sleeve, 2-20 a third shaft sleeve, and a third shaft sleeve, Eighth bearing, 2-21, secondary output shaft, 2-22, primary output shaft, 3-1, first key, 3-2, tapered roller bearing, 3-3, support frame, 3-4, second key, 3-5, ball bearing, 3-6, first bolt, 3-7, bearing end cover, 4-1, cylindrical cam driving wheel, 4-2, hexagonal prism, 4-3, cam follower, 4-4, needle bearing, 4-5, cam follower end cover, 4-6, second bolt, 4-7, pin shaft, 4-8, follower support, 4-9, third bolt, 4-10, universal joint output shaft, 4-11, universal joint connecting block, 4-12, universal joint long pin shaft, 4-13 and universal joint short pin shaft, 4-14 parts of driven transmission cylinder, 4-15 parts of universal joint input shaft, 6-1 part of lower pressing cover, 6-2 parts of pressing cover spring, 6-3 parts of folding cover, 6-4 parts of screw, 6-5 parts of upper pressing cover, 6-6 parts of clamping screw, 6-7 parts of clamping spring, 6-8 parts of clamping steel ball, 6-9 parts of nut, 6-10 parts of fourth bolt.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
A liquid medicine oscillation mixer with multi-combination movement comprises a motor, a double-output planetary gear reducer, a main transmission part, an auxiliary transmission part, a medicine bottle tray and other main parts. The motor outputs rotating power, the double-output planetary gear reducer outputs the power from the motor to the two transmission shafts in a speed reduction mode, and the rotating torque is converted into three composite motions of rotation, swinging and oscillation of the medicine bottle tray by means of the main transmission part and the auxiliary transmission part. The multi-layer tray is provided with medicine bottles with various sizes and specifications, and a spring gland and a hand wheel are designed to compress the medicine bottles tightly.
The inside universal joint that is of main drive part transmits the torque to the medicine bottle tray, makes the tray rotatory, and the one end of the connection medicine bottle tray of universal joint even goes up the cylindrical cam, and cam mechanism will rotate and convert and vibrate from top to bottom, and the high-speed axle in two outputs of reduction gear is connected to the other end of universal joint.
The primary output shaft of the double-output planetary gear reducer is connected with an inner universal joint, the secondary output shaft is connected with an outer driven transmission cylinder, and the driven transmission cylinder controls the swing of the whole medicine bottle tray.
The motor uses a servo motor, so that accurate rotating speed can be output, good starting and stopping performance is realized, and the dissolving efficiency is accelerated.
The speed reducer is a double-output planetary gear speed reducer, one input power is output in a speed reduction mode to be low-speed motion at two different rotating speeds through the speed reducer, and two groups of planetary gear trains are arranged inside the speed reducer to guarantee stability.
It should be noted that the principle of the dual-output planetary gear reducer is that two sets of planetary gears drive one output shaft, and according to the principle, the dual-output planetary gear reducer can be popularized to a multi-output planetary gear reducer, and multi-output can be realized by using multiple sets of planetary gears.
The universal joint is used for completing torque transmission of the crossed shafts and converting the rotation of a primary output shaft of the speed reducer in the vertical direction into the rotation of a hexagonal prism; the hexagonal prism drives the cylindrical cam to rotate; the inclination angle of the hexagonal prism is determined by the inclination angle of the joint of the driven piece bracket and the driven transmission cylinder. The instantaneous speed of the unequal-speed universal joint is not fixed, and the instantaneous speed of the medicine bottle tray along with the rotation of the hexagonal prism is not constant, so that the unequal-speed universal joint has a better shaking effect on the medicine liquid.
The cylindrical cam mechanism is divided into three parts, including a cylindrical cam driving wheel, a cam driven piece and a driven piece bracket. The driving wheel of the cam is a cylindrical cam, and the track of the wheel groove is a sine curve with two periods; the inner side of the cam follower is clamped into a cam groove of the cam driving wheel through a needle bearing, and the outer side of the cam follower limits the movement of the cam follower along the axial direction of the cam driving wheel through a follower support and a cam follower end cover; because the cylindrical cam driving wheel and the driven piece bracket have a rotation speed difference, and the cam driven piece and the driven piece bracket are relatively fixed, the cylindrical cam driving wheel is forced to vibrate up and down along the sine curve of the cam groove in the process of relatively rotating with the driven piece bracket. The frequency of the vertical oscillation of the cylindrical cam driving wheel is influenced by the rotating speed difference between the cylindrical cam driving wheel and the driven part bracket and the curve period of the cam groove, and the vertical oscillation amplitude is influenced by the curve amplitude of the cam groove.
The lower part of the mounting base is connected with the speed reducer through a bolt; two sets of transmission shafting are fixed in the middle hole of the mounting base to play a supporting role; the outer side of the mounting base can be connected with the machine shell through screws.
The lower part of the driven transmission cylinder is connected with a secondary output shaft of the speed reducer, the upper part of the driven transmission cylinder is connected with a driven part support, and the driven transmission cylinder transmits the power of the secondary output shaft to the driven part support; the driven transmission cylinder accommodates a transmission shafting of the primary output shaft.
The multi-layer medicine bottle tray is stacked above the cylindrical cam, and the cylindrical cam provides support along the direction of the hexagonal prism.
The structure design of each layer of the medicine bottle tray is the same, a plurality of threaded holes with the same size are arranged in the medicine bottle tray, medicine bottle container seats can be placed on the threaded holes, and medicine bottles can be placed in the container seats; stacking a plurality of medicine bottle trays; the medicine bottle trays are radially fixed by the middle shaft; the upper part of the medicine bottle tray in the axial fixing aspect depends on a spring gland and a locking hand wheel, and the lower part depends on a cylindrical cam.
The external thread of the medicine bottle container seat is screwed with the internal thread on the medicine bottle tray; the inscribed circle of the hexagonal hole in the medicine bottle container seat is designed to be the same as the medicine bottle in size; a plurality of medicine bottle container seats are arranged according to different sizes of the medicine bottles; aiming at shaking up various medicine bottles, only the corresponding medicine bottle container seat needs to be replaced, the medicine bottle tray does not need to be replaced, and the universality of the whole device is ensured.
The medicine bottle tray is pressed by a spring gland, and the upper side of the spring gland is pressed by a locking hand wheel; the lower part of the spring gland can not only press the medicine bottle tray, but also vibrate up and down along with the medicine bottle tray; the top position of the hexagonal prism is designed with a ring groove, and the upper part of the spring gland is designed with a clamping steel ball to realize the axial positioning of the spring gland on the hexagonal prism.
The locking hand wheel is used for clamping the gland, prevents axial float, and is simple and convenient.
The movement of the medicine bottle includes: the medicine bottle rotates by taking the hexagonal prism as an axis, the medicine bottle vibrates up and down relative to the cam, and the whole tray swings relative to the ground; meanwhile, the complex combined motion of the medicine bottles in the whole tray is realized by controlling the acceleration and deceleration of the motor to rotate positively and negatively and the instantaneous non-constant-speed motion of the universal joint, so that the uniform mixing effect of the liquid medicine in the medicine bottles is enhanced.
FIG. 1 is a structural diagram of the power and working parts of the present invention. The motor 1 is connected with the double-output planetary gear reducer 2 through bolts, and is assembled and connected below the mounting base 3; the main transmission part 4 realizes radial fixation through the mounting base 3, the double-output planetary gear reducer 2 provides power input with two rotating speeds at the lower part, the medicine bottle tray 5 is supported and guided at the upper part, and the main transmission part 4 realizes three compound motions of rotation, swing and oscillation of the medicine bottle tray 5 by effectively combining the two rotating speeds; the spring gland 6 provides damping buffer for the up-and-down oscillation of the medicine bottle tray, so that severe collision is prevented; the locking hand wheel 7 realizes the functions of safe locking and limiting.
The liquid medicine oscillating mixer is convenient to assemble and use. The main transmission part 4 is connected with the mounting base 3 from the upper part after all parts are assembled, and the motor 1 is connected with the double-output planetary gear reducer 2 and then connected with the mounting base 3 from the lower part. After the main working part is integrally assembled, the mounting base 3 is fixedly connected with the box body through bolts. When the device works, the medicine trays 5 are stacked above the main transmission part 4 in layers, and finally the spring gland 6 and the locking hand wheel 7 are arranged.
FIG. 2 is a structural diagram of a dual-output planetary gear reducer, wherein the reducer transmits motion from an input gear shaft 2-1, the input gear shaft 2-1 is meshed with a first group of planetary gears 2-8, the first group of planetary gears 2-8 are connected with a first-stage output shaft 2-22 through a mandrel 2-6 to drive the first-stage output shaft 2-22 to move, gears on the first-stage output shaft 2-22 are meshed with a second group of planetary gears 2-11, and the second group of planetary gears 2-11 are connected with a second-stage output shaft 2-21 through a mandrel 2-14 to drive a second-stage output shaft 2-21 to move. Because the planetary gear has the function of reducing speed, the shaft rotating speed of the primary output gear 2-22 is lower than that of the input gear shaft 2-1, and the rotating speed of the secondary output shaft 2-21 is lower than that of the primary output gear shaft 2-22.
Fig. 3 is a schematic diagram of a dual output planetary gear reducer, which can be analyzed according to the schematic diagram, and through calculation, two reduction ratio formulas can be obtained:
wherein i2-1，2-22Representing the reduction ratio of the input gear to the primary output shaft.
i15Indicating input gear shaft to secondary output shaftThe reduction ratio of (c).
z2-5The number of teeth of the internal gear of the external box body;
z2-1is the number of teeth of the input gear shaft;
z2-22is the number of gear teeth on the primary output shaft.
FIG. 4 is a shafting diagram of a main transmission part, a secondary output shaft 2-21 is connected through a first key 3-1 to drive a driven transmission cylinder 4-14 to rotate, the driven transmission cylinder 4-14 is connected with a driven piece support 4-8 through a first bolt 3-6, the driven transmission cylinder 4-14 and the driven piece support 4-8 are designed with inclined planes, and the driven transmission cylinder 4-14 realizes the swinging of the driven piece support 4-8 in the rotating process; the follower support 4-8 is connected with the cam follower 4-3, and the cam follower 4-3 and the cylindrical cam driving wheel 4-1 vibrate up and down along the hexagonal prism 4-2 through the cam pair mechanism due to the rotation speed difference between the cam follower 4-3 and the cylindrical cam driving wheel 4-1. The first-stage output shaft 2-22 is connected through a second key 3-4 to drive the universal joint 4-15 input shaft to rotate, the power of the universal joint 4-15 input shaft is output to the hexagonal prism 4-2 through a universal joint short pin shaft 4-13, a universal joint connecting block 4-11, a universal joint long pin shaft 4-12, a universal joint output shaft 4-10 and a pin shaft 4-7, the hexagonal prism 4-2 drives the cylindrical cam driving wheel 4-1 and the multilayer medicine bottle tray to rotate through each edge surface, and meanwhile, the cylindrical cam driving wheel 4-1 and the multilayer medicine bottle tray can vibrate up and down along the hexagonal prism 4-2.
Analyzing the motion process of the unequal-speed universal joint, setting an included angle between a universal joint input shaft 4-15 and a universal joint output shaft 4-10 as alpha, wherein the angle alpha is determined by two design inclined plane angles of a driven transmission cylinder 4-14 and a driven piece support 4-8; the angular velocities of the cardan joint input shafts 4-15 and of the cardan joint output shafts 4-10 are omega, respectively1And ω2Then, there are:
therefore, when the speed of the universal joint input shaft 4-15 is constant, the instantaneous angular speed of the universal joint output shaft 4-10 is not constant, and an acceleration and deceleration process exists, so that the liquid medicine mixing effect is further enhanced.
Fig. 5 is a schematic diagram of a cylindrical cam driving wheel, the cam mechanism adds up-and-down oscillation motion through two differential rotation motions, and the wheel groove track of the cylindrical cam driving wheel 4-1 plays a decisive role. The track of the race can be expressed as two cycles of a sinusoidal curve wrapped around a cylindrical cam. In order to express the track curve of the wheel groove by using a mathematical curve formula, the vertical direction is set as a Z axis, and two directions perpendicular to the Z axis are respectively an X axis and a Y axis, and then the expression is as follows:
X＝Rsin(ωt)
Y＝Rcos(ωt)
Z＝Hsin(2*ωt)；
wherein R is the radius of the cylindrical cam; h is the vertical oscillation amplitude of the cylindrical cam; omega is the rotating speed of the cylindrical cam; t is the variable time.
Fig. 6 is a schematic view of a vial tray for holding multiple sizes of vials, the vial tray being internally threaded to threadably engage multiple sizes of vial receptacles. The hexagonal hole in the middle is used for being matched with the hexagonal prism of the main transmission part, and a longer cylinder shoulder is reserved below the hexagonal hole, so that the multi-layer medicine bottle tray is convenient to mount.
Fig. 7 is a schematic diagram of a medicine bottle holder, the size of the external thread of the medicine bottle holder is the same, the medicine bottle holder can be matched with a medicine bottle tray, the size of the internal hexagonal hole of the medicine bottle holder is different, the internal hole is mainly matched with a medicine bottle, and medicine bottles with different specifications and sizes can be matched with corresponding medicine bottle holders.
FIG. 8 is a schematic diagram of a spring gland, and FIG. 9 is a schematic diagram of a spring gland in full section, wherein a lower gland 6-1 is tightly attached to a medicine bottle tray 5, and the lower gland 6-1 is connected with an upper gland 6-5 through a bolt 6-10; the adjusting nut 6-9 adjusts the pressure and the oscillation amplitude of the gland spring 6-2, and the oscillation amplitude should meet the up-down vibration amplitude requirement of the cam mechanism; the clamping screw 6-6 and the clamping spring 6-7 complete the compression of the clamping steel ball 6-8, and the clamping steel ball 6-8 can facilitate the quick positioning of the spring gland when the spring gland is taken and placed on the hexagonal prism 4-2; the folding cover 6-3 protects and seals the internal parts of the spring gland; and a locking hand wheel 7 is designed above the upper gland 6-5 to finally complete the locking function.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A liquid medicine oscillating mixer with multiple combined motions is characterized in that: the method comprises the following steps:
the motor is used for providing power for the oscillating mixer;
the input end of the double-output planetary gear reducer is connected with the motor and comprises a primary output shaft and a secondary output shaft, the primary output shaft and the secondary output shaft are non-uniform-speed output shafts, and the primary output shaft and the secondary output shaft are coaxially arranged;
the input shaft of the universal joint is connected with the primary output shaft, and the output shaft of the universal joint is provided with a guide structure;
the cylindrical cam mechanism comprises a cylindrical cam driving wheel, a cam driven piece and a driven piece bracket, wherein the cylindrical cam driving wheel is sleeved on the output shaft and is in clearance fit with the output shaft, so that the cylindrical cam driving wheel can reciprocate along the axial direction of the output shaft; a wheel groove is processed on the side wall of the cylindrical cam driving wheel;
the inner side of the cam follower is clamped into the wheel groove through a needle bearing, and the outer side of the cam follower is connected with the secondary output shaft through a follower support and a driven transmission cylinder; the driven part bracket and the driven transmission cylinder are fixedly connected with each other at a set included angle, so that an input shaft and an output shaft of the universal joint form a set included angle;
and the tray is arranged on the output shaft of the universal joint and is positioned at the outer side of the cylindrical cam driving wheel, the tray is provided with a spring gland, and the top of the spring gland is limited by the end part of the output shaft of the universal joint.
2. The liquid medicine oscillation mixer according to claim 1, wherein: the guide structure on the output shaft is a prism structure, and an inner prism structure matched with the inner wall of the cylindrical cam driving wheel is processed on the inner wall of the cylindrical cam driving wheel.
3. The liquid medicine oscillation mixer according to claim 2, wherein: the guide structure on the output shaft is a hexagonal prism structure.
4. The liquid medicine oscillation mixer according to claim 1, wherein: the spring gland comprises an upper gland, a lower gland and a plurality of gland springs, the upper gland is connected with the lower gland through the gland springs, the upper gland is far away from the tray and is positioned along the axial direction of the output shaft.
5. The liquid medicine oscillation mixer of claim 4, wherein: the spring gland still includes folding cover, and folding cover sets up in the circumference of spring gland.
6. The liquid medicine oscillation mixer of claim 4, wherein: go up the gland on be provided with radial cell body, install screens spring and screens steel ball in the radial cell body, the relevant position of the output shaft of universal joint is provided with the hoop recess, the hoop recess with the cooperation of screens steel ball realizes going up the location of gland.
7. The liquid medicine oscillation mixer of claim 6, wherein: the locking hand wheel is matched with the external thread at the end part of the output shaft to fix the spring gland.
8. The liquid medicine oscillation mixer according to claim 1, wherein: the number of layers of the tray is 2-7.
9. The medical liquid oscillation mixer according to claim 8, wherein: the tray comprises a medicine bottle tray and a plurality of container seats, a plurality of threaded holes are formed in the medicine bottle tray, external threads are formed in the container seats, each container seat is installed in one threaded hole, and the specification parts of the container seats are different.
10. The liquid medicine oscillation mixer according to claim 1, wherein: the double-output planetary gear reducer is characterized by further comprising a mounting base, and the mounting base is connected with a shell of the double-output planetary gear reducer through bolts.
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| CN2088897U (en) * | 1991-01-16 | 1991-11-20 | 无锡轻工业学院 | Shaking by swirling type bottle shaking apparatus |
| EP1186390A2 (en) * | 2000-07-11 | 2002-03-13 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Hydrostatic mechanical gear for driving a mixing drum |
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