Shaking table for microbial cultivation

Abstract

The utility model discloses a shaking table for microbial cultivation. The shaking table comprises a rack, four eccentric shafts and a tray, the eccentric shaft comprises a shaft section I and a shaft section II; the four eccentric shafts are arranged in a rectangular shape, the first shaft section is rotationally installed on the rack, and the second shaft section is rotationally connected with the tray. Transmission chain wheels are fixedly connected to the shaft sections I; a gear motor is installed on the rack, and the output end of the gear motor is fixedly connected with a driving chain wheel. The transmission chain wheel and the driving chain wheel are positioned on the same plane; the chain is meshed with the driving chain wheel and the transmission chain wheels; the transmission chain wheel is fixedly connected with the first shaft section through an expansion sleeve. The device has the advantages that oxygen and a culture medium can be effectively promoted to be fully mixed, the growth rate and the yield of microorganisms are improved, and the requirements of industrial production are further met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of microbial production equipment, especially to a shaker for microbial cultivation. BACKGROUND

[0002] As a widely used device in laboratory environments, the shaker plays an indispensable role, mainly used for sample mixing, cell culture, and reaction promotion in multiple fields such as biology, chemistry, and medicine. It simulates the action of manual shaking through mechanical movement, providing a stable and flexible oscillation environment that can be adjusted according to experimental needs. This design ensures that the components in the liquid or suspension are uniformly mixed together, while also promoting effective exchange between gas and liquid, which is particularly important for biological processes that require oxygen supply.

[0003] The shaker is suitable for a wide range of academic and applied research fields such as microbial cultivation, molecular biology experiments, chemical reactions, and environmental science research. The shaker is not only an important assistant for scientists exploring the unknown world, but also an essential tool for implementing many experimental steps. However, the design of most current shakers is mainly aimed at small batch testing in laboratory scale, and in the face of industrial production occasions that require large-scale cultivation of aerobic microorganisms, the production efficiency of existing shakers may not meet the actual production requirements. Therefore, in order to improve production efficiency and meet larger-scale production needs, it is particularly necessary to improve the shaker. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a shaker for microbial cultivation.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0006] A shaker for microbial cultivation, comprising a rack, four eccentric shafts, and a tray; the eccentric shafts include shaft section one and shaft section two; the four eccentric shafts are arranged in a rectangle, the shaft section one is rotatably installed on the rack, and the shaft section two is rotatably connected with the tray; a transmission sprocket is fixedly connected to the shaft section one; a reduction motor is installed on the rack, and a driving sprocket is fixedly connected to the output end of the reduction motor; the transmission sprocket and the driving sprocket are located in the same plane; it further comprises a chain meshing with the driving sprocket and each transmission sprocket; the transmission sprocket is fixedly connected to the shaft section one through an expansion sleeve.

[0007] Preferably, the shaft section one is a stepped shaft section, which is installed on the rack through a bearing with seat; the shaft section two is installed with a connecting sleeve through a bearing set, and the connecting sleeve is fixedly connected with the tray.

[0008] Preferably, it further comprises a tensioning mechanism for tensioning the chain, the tensioning mechanism comprising a mounting base fixed to the frame, a threaded rod threaded on the mounting base, and a tensioning sprocket rotatably mounted on the end of the threaded rod; the tensioning sprocket is engaged with the chain.

[0009] Preferably, the upper end of the tray is provided with a rubber layer.

[0010] Preferably, the eccentric shaft is provided with a lubricating oil channel.

[0011] Preferably, the frame is fixedly connected with a mounting plate, and the speed reducer motor is fixedly connected to the mounting plate.

[0012] Preferably, it further comprises a heat preservation mechanism, the heat preservation mechanism comprising a bracket covering the frame, a heat preservation curtain provided on the top and around the bracket, a heater located in the bracket, a temperature probe provided in the bracket, and a PLC controller electrically connected with the heater and the temperature probe.

[0013] The above technical scheme has the following advantages:

[0014] The utility model discloses a four eccentric shaft synchronous rotation design, and the eccentric shaft adopts single chain transmission. The chain transmission can not only accurately ensure the synchronism of the rotation of all eccentric shafts, avoid the uneven oscillation or equipment wear caused by asynchronization, but also can meet the use demand under the condition of large load because the chain transmission has high bearing capacity. Even under high load condition, the chain transmission can keep its performance stable, and will not easily appear the situation of slipping or breaking. The selection of the chain transmission makes the whole system still can stably run when bearing large load, and the chain transmission structure is simple and convenient to maintain, which also enhances the durability and reliability of the system, and is suitable for the working environment that needs high precision and large load capacity. Especially for the mass production of aerobic microorganisms, the stable and reliable oscillation environment is very important, which can effectively promote the full mixing of oxygen and culture medium, improve the growth rate and yield of microorganisms, and then meet the demand of industrial production. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure diagram of the first embodiment of the utility model;

[0016] Figure 2 It is the left view of Figure 1 ;

[0017] Figure 3 It is the sectional view of A-A in Figure 1 ;

[0018] Figure 4 It is the enlarged view of C part in Figure 3 ;

[0019] Figure 5 for Figure 1 Sectional view of BB;

[0020] Figure 6 for Figure 1 A three-dimensional image;

[0021] Figure 7 for Figure 6 Exploded view;

[0022] Figure 8 This is a sectional view of the eccentric shaft and its components;

[0023] Figure 9 for Figure 8 A three-dimensional image;

[0024] Figure 10 A three-dimensional view of the eccentric axis;

[0025] Figure 11 This is a structural diagram of another embodiment of the present invention, in which a partial section has been provided;

[0026] In the picture:

[0027] 1-Frame, 2-Eccentric shaft, 3-Panel, 4-Shaft section one, 5-Shaft section two, 6-Drive sprocket, 7-Gear motor, 8-Drive sprocket, 9-Chain, 10-Tightening sleeve, 11-Bearing with seat, 12-Bearing assembly, 13-Connecting sleeve, 14-Mounting base, 15-Threaded rod, 16-Tension sprocket, 17-Rubber layer, 18-Lubricating oil passage, 19-Mounting plate, 20-Bracket, 21-Insulation curtain, 22-Heater, 23-Temperature probe, 24-PLC controller. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] Example 1

[0030] As attached Figures 1-10As shown in the figure, a shaking table for microbial cultivation comprises a rack 1, four eccentric shafts 2, and a tray 3; the eccentric shafts 2 comprise shaft section one 4 and shaft section two 5; the four eccentric shafts 2 are arranged in a rectangle, the shaft section one 4 is rotatably mounted on the rack 1, and the shaft section two 5 is rotatably connected with the tray 3; a transmission sprocket 6 is fixedly connected to the shaft section one 4; a speed reducer motor 7 is mounted on the rack 1, and a driving sprocket 8 is fixedly connected to the output end of the speed reducer motor 7; the transmission sprocket 6 and the driving sprocket 8 are located in the same plane; it further comprises a chain 9 engaged with the driving sprocket 8 and each transmission sprocket 6; the transmission sprocket 6 is fixedly connected with the shaft section one 4 through an expansion sleeve 10.

[0031] As a specific technical solution of the embodiment, the shaft section one 4 is a stepped shaft section, which is mounted on the rack 1 through a bearing with seat 11; the shaft section two 5 is mounted with a connecting sleeve 13 through a bearing set 12, and the connecting sleeve 13 is fixedly connected with the tray 3. This kind of structure is more convenient to assemble, and obviously other connection methods can also be used.

[0032] As a further improved technical solution of the embodiment, it further comprises a tensioning mechanism for tensioning the chain 9, and the tensioning mechanism in the embodiment comprises a mounting seat 14 fixedly connected with the rack 1, a threaded rod 15 threaded on the mounting seat 14, and a tensioning sprocket 16 rotatably mounted on the end of the threaded rod 15; the tensioning sprocket 16 is engaged with the chain 9. By rotating the threaded rod 15, the tensioning degree of the chain 9 can be adjusted. Obviously, other common tensioning mechanisms can also be used.

[0033] As a further improved technical solution of the embodiment, a rubber layer 17 is arranged on the upper end of the tray 3, which can increase the friction and prevent the container containing aerobic microorganisms from moving.

[0034] As a further improved technical solution of the embodiment, a lubricating oil channel 18 is arranged on the eccentric shaft 2, which can guide lubricating oil to lubricate the rotating parts and corresponding components.

[0035] As a specific technical solution of the embodiment, a mounting plate 19 is fixedly connected to the rack 1, and the speed reducer motor 7 is fixedly connected to the mounting plate 19, so as to facilitate the quick disassembly, assembly and maintenance of the speed reducer motor 7.

[0036] In the embodiment, when assembling, the expansion sleeve 13 is first loosened, the angles of the eccentric shafts 2 are fixed to be consistent, then the chain 9 is engaged with the transmission sprocket 6 and the driving sprocket 8 and is tensioned, and then the expansion sleeve 13 is tightened again to fix the transmission sprocket 6 with the eccentric shaft 2, so as to ensure that the transmission does not skip teeth and ensure that the eccentric shafts 2 move synchronously.

[0037] Embodiment 2

[0038] As shown in the figure, Figure 11As shown in the drawings, a shaking table for microbial cultivation further comprises a heat preservation mechanism, which comprises a support 20 covering the rack 1, heat preservation curtains 21 arranged on the top and around the support 20, a heater 22 located in the support 20, a temperature probe 23 arranged in the support 20, and a PLC controller 24 electrically connected with the heater 22 and the temperature probe 23. The rest is basically the same as example 1.

[0039] In this embodiment, the heat preservation curtain 21 can adopt a transparent soft curtain, one side of which can be rolled up to facilitate the taking and placing of the container containing aerobic microorganisms; the heat preservation curtain 21 at the top can also adopt a hard material such as a plate body. The heater 22 preferably adopts a hot air heater, such as an Aimesi HP21-K72 type graphene warm air heater, to realize rapid adjustment of the temperature in the support 20 to meet the temperature requirements of aerobic microbial cultivation. In this embodiment, the temperature probe 23 can adopt a TS105-6 infrared temperature sensor, and the PLC controller 24 can adopt a Mitsubishi FX1N series.

[0040] The four eccentric shafts 2 are synchronously rotated, and the eccentric shafts 2 adopt a single chain 9 transmission mode. The chain 9 transmission can not only accurately ensure the synchronism of rotation of all the eccentric shafts 2, avoiding problems such as uneven oscillation or equipment wear caused by asynchronization, but also can meet the use requirements under the condition of large load due to the high carrying capacity of the chain 9 transmission. Even under high load conditions, the chain 9 transmission can maintain its stable performance and will not easily slip or break. The selection of the chain 9 transmission enables the entire system to still operate stably when bearing a large load, and the chain 9 transmission structure is simple and easy to maintain, which also enhances the durability and reliability of the system, and is suitable for working environments requiring high precision and large load capacity.

[0041] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A shaker for microbial cultivation, comprising a frame (1), four eccentric shafts (2), and a tray (3); the eccentric shaft (2) comprises a shaft section one (4) and a shaft section two (5); characterized in that: Four eccentric shafts (2) are arranged in a rectangle, the first shaft segments (4) are rotatably installed on a frame (1), the second shaft segments (5) are rotatably connected with a tray (3); the first shaft segments (4) are all fixedly connected with transmission sprockets (6); a reduction motor (7) is installed on the frame (1), the output end of the reduction motor (7) is fixedly connected with a driving sprocket (8); the transmission sprockets (6) and the driving sprocket (8) are located in the same plane; further comprising a chain (9) meshing with the driving sprocket (8) and the transmission sprockets (6); the transmission sprockets (6) are fixedly connected with the first shaft segments (4) through expansion sleeves (10).

2. The shaker for microbial cultivation according to claim 1, characterized in that: The first shaft segments (4) are stepped shaft segments, which are installed on the frame (1) through a bearing with seat (11); the second shaft segments (5) are installed with connecting sleeves (13) through bearing groups (12), the connecting sleeves (13) are fixedly connected with the tray (3).

3. The shaker for microbial cultivation according to claim 1 or 2, characterized in that: Further comprising a tensioning mechanism for tensioning the chain (9), the tensioning mechanism comprises a mounting seat (14) fixedly connected with the frame (1), a threaded rod (15) threaded on the mounting seat (14), and a tensioning sprocket (16) rotatably installed on the end of the threaded rod (15); the tensioning sprocket (16) meshes with the chain (9).

4. The shaker for microbial cultivation according to claim 1 or 2, characterized in that: A rubber layer (17) is arranged on the upper end of the tray (3).

5. The shaker for microbial cultivation according to claim 1 or 2, characterized in that: A lubricating oil channel (18) is arranged on the eccentric shaft (2).

6. The shaker for microbial cultivation according to claim 1 or 2, characterized in that: A mounting plate (19) is fixedly connected on the frame (1), the reduction motor (7) is fixedly connected on the mounting plate (19).

7. The shaker for microbial cultivation according to claim 1 or 2, characterized in that: Further comprising a heat preservation mechanism, the heat preservation mechanism comprises a support (20) covering the frame (1), heat preservation curtains (21) arranged on the top and around the support (20), a heater (22) located in the support (20), a temperature probe (23) arranged in the support (20), and a PLC controller (24) electrically connected with the heater (22) and the temperature probe (23).

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