Fermentation tank lubricating structure

Abstract

The utility model discloses a lubricating structure of a fermentation tank. The lubricating structure comprises an upper mounting seat, a lower mounting seat and an oil injection piece, the lower mounting seat is connected with the tank body, and the upper mounting seat is connected with the lower mounting seat; the upper mounting seat and the lower mounting seat are symmetrically arranged and sleeve the stirring shaft; a grease injection channel is arranged in the upper mounting seat, the bottom of the grease injection channel faces the bearing, and a grease injection plug is arranged in the top of the grease injection channel; an oil receiving groove is formed in the side, close to the upper mounting seat, of the stirring shaft; the oil injection part comprises a mounting cylinder, a rotating rod, an inner rod, a threaded sleeve and a brush; wherein the mounting cylinder is fixedly connected with the upper mounting seat, the threaded sleeve is fixedly connected in the mounting cylinder, and the rotating rod is in threaded connection with the threaded sleeve; the brush is connected to one side of the rotating rod and faces the oil receiving groove, the inner rod is arranged in the rotating rod and connected with the brush, and an oil injection plug is arranged on the side, away from the brush, of the inner rod. Impurities can be effectively isolated through the grease injection plug and the oil injection plug, and the impurities are prevented from entering the bearing and the oil receiving groove.

Description

Technical Field

[0001] The utility model belongs to the technical field of fermentation tanks, in particular to a lubrication structure for a fermentation tank. Background Art

[0002] A fermenter is a device used to carry out the fermentation process and is widely used in industries such as food, beverage, pharmaceutical and biotechnology. The main function of a fermenter is to provide a suitable environment for microorganisms so that they can grow, reproduce and metabolize in it, thereby producing a variety of valuable products. Fermenters are usually closed to avoid external contamination and maintain the stability of the internal environment. In addition, stirring equipment is usually installed inside the fermenter to ensure the uniform distribution of the culture medium and microorganisms, and promote gas exchange and material transfer.

[0003] In the stirring device of the fermentation tank, the lubrication structure is an important component, and its main purpose is to reduce the friction between the agitator and the internal components of the tank body to ensure the smooth operation of the stirring device. The driving part of the agitator of the stirring device is usually supported by bearings, and the lubrication of the bearings is crucial. Lubrication can be achieved by grease or lubricating oil. However, the bearing lubrication structure in the prior art has the problem of poor sealing, and external impurities can easily enter the tank body of the fermentation tank through the position of the bearing and cause pollution to the tank body.

[0004] A hyaluronic acid production fermentation tank is disclosed in the patent with publication number CN210683772U, in which a middle bearing is installed on the tank cover, a central shaft is installed between the middle bearing and the lower bearing, a number of stirring blades are fixed on the central shaft, the lower end of the central shaft passes through the connecting plate and is fixed with a propeller stirrer, and the upper end of the central shaft extends out of the tank cover and is connected to a motor. The gap between the bearing and the tank body of this tank body is large, and there is no special lubrication structure, and lubrication is usually performed by directly applying grease. Therefore, this structure will make the sealing of the tank body poor, and external impurities can easily enter the tank body of the fermentation tank through the position of the bearing and cause pollution to the tank body. Utility Model Content

[0005] The purpose of the utility model is to provide a fermentation tank lubrication structure to solve the following technical problems raised in the background technology:

[0006] The bearing lubrication structure in the prior art has the problem of poor sealing performance, and foreign matter can easily enter the tank body of the fermentation tank through the position of the bearing and cause pollution to the tank body.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A fermentation tank lubrication structure is arranged between the tank body of the fermentation tank and the bearing of the stirring shaft, and the lubrication structure comprises an upper mounting seat, a lower mounting seat and an oil injection piece;

[0009] The lower mounting seat is connected to the tank body, and the upper mounting seat is connected to the lower mounting seat; the upper mounting seat and the lower mounting seat are symmetrically arranged and sleeved outside the stirring shaft, and a mounting cavity is formed between the upper mounting seat and the lower mounting seat, and the bearing is arranged in the mounting cavity; a grease injection channel is arranged in the upper mounting seat, the bottom of the grease injection channel faces the bearing, and a grease injection plug is arranged in the top of the grease injection channel;

[0010] An oil receiving groove is arranged on one side of the stirring shaft close to the upper mounting seat, and the oil injection part comprises a mounting cylinder, a rotating rod, an inner rod, a threaded sleeve and a brush; wherein the mounting cylinder is fixedly connected to the upper mounting seat, the threaded sleeve is fixedly connected in the mounting cylinder, and the rotating rod is threadedly connected to the threaded sleeve; the brush is connected to one side of the rotating rod and the brush faces the oil receiving groove, the inner rod is arranged in the rotating rod, the inner rod is connected to the brush, and an oil injection plug is arranged on the side of the inner rod away from the brush.

[0011] Furthermore, a sealing sleeve is provided on the inner side of the bottom of the lower mounting seat.

[0012] Furthermore, a sealing ring is arranged between the sealing sleeve and the lower mounting seat.

[0013] Furthermore, a bottom cover is connected to the bottom of the lower mounting seat, and a labyrinth connection portion is provided between the bottom cover and the lower mounting seat.

[0014] Furthermore, the top of the grease injection channel is provided with an internal thread, the grease injection plug is provided with an external thread, and the grease injection plug is threadedly connected to the top of the grease injection channel.

[0015] Furthermore, one end of the rotating rod is fixedly connected with a rotating head, and the outer side of the rotating head is a regular hexagonal structure.

[0016] Furthermore, a fixing frame is fixedly connected in the installation tube, the threaded sleeve is fixedly connected to the fixing frame, and the threaded sleeve is connected to the installation tube through the fixing frame.

[0017] Furthermore, an inner thread is arranged on a side of the inner rod away from the brush, and an outer thread is arranged on the oil injection plug, and the oil injection plug is threadably connected to the inner rod.

[0018] Furthermore, a connecting plate is movably connected in the installation cylinder, the rotating rod is rotatably connected to the connecting plate, and the brush is connected to the connecting plate.

[0019] Furthermore, a limiting rod is fixedly connected to one side of the connecting plate, a limiting head is fixedly connected inside the mounting tube, and the limiting rod is movably connected to the limiting head.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model can squeeze grease into the bearing through the grease injection channel to achieve lubrication of the bearing. After the grease injection is completed, the grease injection channel is blocked again by the grease injection seal to prevent impurities from entering the bearing through the grease injection channel. The utility model can inject lubricating oil into the oil receiving groove. The lubricating oil entering the oil receiving groove will flow downward along the outer wall of the stirring shaft, thereby reducing the friction between the stirring shaft and the upper mounting seat, the bearing and the lower mounting seat, and ensuring the flexible rotation of the rotating shaft. This lubrication method can inject grease and lubricating oil separately, and the grease injection seal and the oil injection seal can effectively isolate impurities and prevent impurities from entering the bearing and the oil receiving groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the lubrication structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the overall structure of the oil injection piece of the utility model.

[0025] Markings in the figure: 1-tank body, 2-oil filling part, 3-grease injection plug, 4-grease injection channel, 5-sealing ring, 6-sealing sleeve, 7-agitation shaft, 8-maze connection, 9-bottom cover, 10-bearing, 11-lower mounting seat, 12-upper mounting seat, 13-mounting cavity, 14-mounting cylinder, 15-limiting head, 16-limiting rod, 17-brush, 18-connecting plate, 19-inner rod, 20-rotating rod, 21-oil injection plug, 22-rotating head, 23-threaded sleeve, 24-fixed bracket, 25-oil receiving tank. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example

[0028] A fermentation tank lubrication structure, such as Figure 1 As shown, it is arranged between the tank body 1 of the fermentation tank and the bearing 10 of the stirring shaft 7, and the lubrication structure includes an upper mounting seat 12, a lower mounting seat 11 and an oil injection member 2;

[0029] The lower mounting seat 11 is connected to the tank body 1, such as Figure 2As shown, the upper mounting seat 12 is connected to the lower mounting seat 11; the upper mounting seat 12 and the lower mounting seat 11 are symmetrically arranged and sleeved on the outside of the stirring shaft 7, and a mounting cavity 13 is formed between the upper mounting seat 12 and the lower mounting seat 11, and the bearing 10 is arranged in the mounting cavity 13; a grease injection channel 4 is arranged in the upper mounting seat 12, the bottom of the grease injection channel 4 faces the bearing 10, and a grease injection plug 3 is arranged in the top of the grease injection channel 4; wherein, the lower mounting seat 11 and the upper mounting seat 12 are used to install the bearing 10, and the bearing 10 is placed in a relatively sealed environment. The grease injection channel 4 on the upper mounting seat 12 is used to inject grease into the bearing 10, and the bearing 10 is lubricated by the grease, which effectively improves the working capacity of the bearing 10.

[0030] An oil receiving groove 25 is provided on one side of the stirring shaft 7 close to the upper mounting seat 12. Figure 3 As shown, the oil injection part 2 includes a mounting tube 14, a rotating rod 20, an inner rod 19, a threaded sleeve 23 and a brush 17; wherein the mounting tube 14 is fixedly connected to the upper mounting seat 12, the threaded sleeve 23 is fixedly connected in the mounting tube 14, the rotating rod 20 is threadedly connected to the threaded sleeve 23; the brush 17 is connected to one side of the rotating rod 20 and the brush 17 faces the oil receiving groove 25, the inner rod 19 is arranged in the rotating rod 20, the inner rod 19 is connected to the brush 17, and an oil injection plug 21 is arranged on the side of the inner rod 19 away from the brush 17. The oil receiving groove 25 is used to receive lubricating oil to reduce the friction between the stirring shaft 7 and the upper mounting seat 12 and the lower mounting seat 11. The inner rod 19 is used to facilitate the injection of lubricating oil. The lubricating oil injected through the inner rod 19 will infiltrate the brush 17, and the brush 17 will be evenly brushed in the oil receiving groove 25, and the lubricating oil in the oil receiving groove 25 enters the gap between the stirring shaft 7 and the upper mounting seat 12 and the lower mounting seat 11.

[0031] Specifically, in actual use, the grease injection plug 3 is opened, and the grease is squeezed into the grease injection channel 4 through a syringe or other tool. The grease entering the grease injection channel 4 will enter the bearing 10 to achieve lubrication of the bearing 10. After the grease injection is completed, the grease injection plug 3 is used to block the grease injection channel 4 again to prevent impurities from entering the bearing 10 through the grease injection channel 4. Then, the rotating rod 20 is rotated. Since the rotating rod 20 is threadedly connected to the threaded sleeve 23, the rotating rod 20 will move in its axial direction. The moving direction of the rotating rod 20 is controlled so that the brush 17 connected to the rotating rod 20 enters the oil receiving groove 25 and contacts the stirring shaft 7. The oil injection plug 21 is opened, and the lubricating oil is injected into the oil receiving groove 25 using a syringe or other tool. The lubricating oil entering the oil receiving groove 25 will flow downward along the outer wall of the stirring shaft 7, thereby reducing the friction between the stirring shaft 7 and the upper mounting seat 12, the bearing 10 and the lower mounting seat 11, and ensuring the flexible rotation of the rotating shaft. At the same time, this lubrication method can inject grease and lubricating oil respectively, and the grease injection seal 3 and the oil injection seal 21 can effectively isolate impurities and prevent impurities from entering the bearing 10 and the oil receiving groove 25.

[0032] In a preferred embodiment, if Figure 2 As shown, a sealing sleeve 6 is provided on the inner side of the bottom of the lower mounting seat 11, and the sealing sleeve 6 is used to improve the sealing between the rotating shaft and the lower mounting seat 11, and prevent the lubricating oil from overflowing from the bottom of the lower mounting seat 11. The main function of this sealing sleeve 6 is to significantly improve the sealing between the rotating shaft and the lower mounting seat 11. Through good sealing, the sealing sleeve 6 effectively prevents the lubricating oil from overflowing from the bottom of the lower mounting seat 11 during use, thereby avoiding the loss of lubricating oil. In addition, this design also helps to maintain the overall effectiveness of the lubrication system, ensure that the lubricating oil maintains a proper lubrication state between the rotating shaft and the lower mounting seat 11, reduce friction and wear, and improve the working efficiency and life of the equipment. In addition, the sealing sleeve 6 can also prevent external impurities, dust or moisture from invading the lubrication area, thereby further protecting the bearing 10 and the rotating shaft.

[0033] In a preferred embodiment, if Figure 2 As shown, a sealing ring 5 is provided between the sealing sleeve 6 and the lower mounting seat 11. The main function of the sealing ring 5 is to further enhance the sealing effect between the rotating shaft and the lower mounting seat 11. By adding the sealing ring 5 between the sealing sleeve 6 and the lower mounting seat 11, the leakage of the lubricating oil can be effectively prevented, ensuring that the lubricating oil is kept in a predetermined area, thereby preventing waste and pollution caused by the overflow of the lubricating oil.

[0034] In a preferred embodiment, if Figure 2As shown, a bottom cover 9 is connected to the bottom of the lower mounting seat 11, and a labyrinth connection portion 8 is provided between the bottom cover 9 and the lower mounting seat 11. The main function of the bottom cover 9 is to further improve the sealing between the lower mounting seat 11 and the rotating shaft, and to ensure that the lubricating oil is effectively prevented from leaking during use. This design not only reduces the consumption of lubricating oil, but also avoids pollution caused by oil leakage. The labyrinth connection portion 8 prevents the oil from overflowing from the gap between the lower mounting seat 11 and the bottom cover 9 by forming a series of tortuous channels. The design of the labyrinth structure increases the resistance to the flow of the oil, so that it must go through multiple turns and changes in direction, which can effectively reduce the possibility of oil leakage, thereby ensuring that the lubricating oil can remain in the lubrication area for a long time. In this way, the labyrinth connection portion 8 not only enhances the sealing, but also improves the operating stability of the equipment.

[0035] In a preferred embodiment, the top of the grease injection channel 4 is provided with an internal thread, the grease injection plug 3 is provided with an external thread, and the grease injection plug 3 is threadedly connected to the top of the grease injection channel 4. By using the internal and external thread connection method, the grease injection plug 3 can be easily disassembled and installed as needed, thereby facilitating maintenance and maintenance work. The user can quickly access the grease injection channel 4 to add grease when needed without having to disassemble the entire structure, which greatly improves the convenience and efficiency of operation. In addition, the increased contact area of ​​the threaded connection effectively improves the sealing performance of the connection, ensuring that the grease will not leak out due to vibration or pressure changes.

[0036] In a preferred embodiment, if Figure 3 As shown, a rotating head 22 is fixedly connected to one end of the rotating rod 20, and the outer side of the rotating head 22 is a regular hexagonal structure. The regular hexagonal rotating head 22 can easily rotate the rotating rod 20.

[0037] In a preferred embodiment, a fixing frame 24 is fixedly connected in the installation tube 14, and the threaded sleeve 23 is fixedly connected to the fixing frame 24, and the threaded sleeve 23 is connected to the installation tube 14 through the fixing frame 24. The existence of the fixing frame 24 provides a reliable support point for the threaded sleeve 23, so that during use, the threaded sleeve 23 can withstand a large load and stress without loosening or displacement. At the same time, the design of the fixing frame 24 also helps to improve the convenience and accuracy of installation, ensuring that the threaded sleeve 23 can be fixed in a suitable position to avoid functional loss or hidden dangers caused by installation errors.

[0038] In a preferred embodiment, if Figure 3 As shown, the inner rod 19 is provided with an internal thread on the side away from the brush 17, and the oil injection plug 21 is provided with an external thread, and the oil injection plug 21 is threadedly connected with the inner rod 19. When the oil injection plug 21 is connected with the internal thread of the inner rod 19, a tight sealing mechanism is formed to ensure that the internal lubricating oil will not leak and effectively prevent the entry of external pollutants.

[0039] In a preferred embodiment, if Figure 3 As shown, a connecting plate 18 is movably connected in the installation cylinder 14, a rotating rod 20 is rotatably connected to the connecting plate 18, and a brush 17 is connected to the connecting plate 18. The connecting plate 18 is designed to facilitate the installation of the brush 17. The design of the rotating rod 20 and the connecting plate 18 being rotatably connected can drive the brush 17 to move without the need for the brush 17 to rotate.

[0040] In a preferred embodiment, if Figure 3 As shown, a limit rod 16 is fixedly connected to one side of the connecting plate 18, and a limit head 15 is fixedly connected in the mounting tube 14, and the limit rod 16 is movably connected to the limit head 15. The existing rod and the limit head 15 are used to prevent the connecting plate 18 from rotating, so that the brush 17 connected to the connecting plate 18 can move stably.

[0041] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fermentation tank lubrication structure, arranged between a tank body (1) of the fermentation tank and a bearing (10) of a stirring shaft (7), characterized in that: The lubrication structure comprises an upper mounting seat (12), a lower mounting seat (11) and an oil injection piece (2); The lower mounting seat (11) is connected to the tank body (1), and the upper mounting seat (12) is connected to the lower mounting seat (11); the upper mounting seat (12) and the lower mounting seat (11) are symmetrically arranged and sleeved outside the stirring shaft (7); a mounting cavity (13) is formed between the upper mounting seat (12) and the lower mounting seat (11), and the bearing (10) is arranged in the mounting cavity (13); a grease injection channel (4) is arranged in the upper mounting seat (12), the bottom of the grease injection channel (4) faces the bearing (10), and a grease injection plug (3) is arranged in the top of the grease injection channel (4); An oil receiving groove (25) is arranged on one side of the stirring shaft (7) close to the upper mounting seat (12), and the oil injection member (2) comprises a mounting tube (14), a rotating rod (20), an inner rod (19), a threaded sleeve (23) and a brush (17); wherein the mounting tube (14) is fixedly connected to the upper mounting seat (12), the threaded sleeve (23) is fixedly connected in the mounting tube (14), and the rotating rod (20) is threadedly connected to the threaded sleeve (23); the brush (17) is connected to one side of the rotating rod (20) and the brush (17) faces the oil receiving groove (25); the inner rod (19) is arranged in the rotating rod (20), the inner rod (19) is connected to the brush (17), and an oil injection plug (21) is arranged on the side of the inner rod (19) away from the brush (17).

2. A fermentation tank lubrication structure according to claim 1, characterized in that: A sealing sleeve (6) is arranged on the inner side of the bottom of the lower mounting seat (11).

3. A fermentation tank lubrication structure according to claim 1, characterized in that: A sealing ring (5) is arranged between the sealing sleeve (6) and the lower mounting seat (11).

4. A fermentation tank lubrication structure according to claim 1, characterized in that: The bottom of the lower mounting seat (11) is connected to a bottom cover (9), and a labyrinth connection portion (8) is provided between the bottom cover (9) and the lower mounting seat (11).

5. A fermentation tank lubrication structure according to claim 1, characterized in that: The top of the grease injection channel (4) is provided with an internal thread, the grease injection plug (3) is provided with an external thread, and the grease injection plug (3) is threadedly connected to the top of the grease injection channel (4).

6. A fermentation tank lubrication structure according to claim 1, characterized in that: One end of the rotating rod (20) is fixedly connected with a rotating head (22), and the outer side of the rotating head (22) is a regular hexagonal structure.

7. A fermentation tank lubrication structure according to claim 1, characterized in that: A fixing frame (24) is fixedly connected inside the installation tube (14), the threaded sleeve (23) is fixedly connected to the fixing frame (24), and the threaded sleeve (23) is connected to the installation tube (14) through the fixing frame (24).

8. A fermentation tank lubrication structure according to claim 1, characterized in that: An inner thread is provided on a side of the inner rod (19) away from the brush (17), and an outer thread is provided on the oil injection plug (21). The oil injection plug (21) is threadedly connected to the inner rod (19).

9. A fermentation tank lubrication structure according to claim 1, characterized in that: A connecting plate (18) is movably connected in the installation cylinder (14), a rotating rod (20) is rotatably connected to the connecting plate (18), and a brush (17) is connected to the connecting plate (18).

10. A fermentation tank lubrication structure according to claim 9, characterized in that: A limiting rod (16) is fixedly connected to one side of the connecting plate (18), a limiting head (15) is fixedly connected inside the mounting tube (14), and the limiting rod (16) is movably connected to the limiting head (15).

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