Novel water-cooling fermentation tank direct drive motor

Abstract

The utility model discloses a novel water-cooling fermentation tank direct-drive motor, which relates to the technical field of direct-drive motors and comprises a rotor assembly, a cylindrical roller bearing and a tapered roller bearing are respectively attached to two ends of the rotor assembly, and the rotor assembly comprises a rotating shaft and a rotor iron core which are connected with each other. The transmission system solves the problems that an existing fermentation tank transmission system is low in operation efficiency, the efficiency of the transmission system is reduced due to the fact that a speed reducer or a belt pulley is matched with a motor for transmission, the speed reducer is lubricated and cooled through lubricating oil, and meanwhile the oil leakage problem needs to be solved. A high-speed asynchronous motor of a fermentation tank transmission system is replaced by the low-speed large-torque permanent magnet direct drive motor, the characteristics are more suitable for fermentation tank loads, through a 40-pole 48-slot winding structure, the mechanical loss is reduced, the stirring rotating speed requirement is directly met, and through the paired tapered roller bearing and cylindrical roller bearing, the stirring speed is improved. And the stability and rigidity of the whole bearing system are improved so as to bear the axial load.

Description

TECHNICAL FIELD

[0001] The utility model relates to direct drive motor technical field, concretely is a novel water -cooling fermentation tank direct drive motor. BACKGROUND

[0002] The existing fermentation tank transmission system is composed of asynchronous motor plus speed reducer or asynchronous motor plus belt pulley, because the asynchronous motor is characterized by efficiency changing with load rate, the highest efficiency of general asynchronous motor is between 75% and 85% of load rate, when the motor is selected larger, the load rate is low, the running efficiency is lower, the transmission of speed reducer or belt pulley cooperation has power loss because of friction loss, makes transmission system efficiency reduce, the speed reducer adopts lubricating oil lubrication and cooling, and there is also the problem of oil leakage to be solved.

[0003] In view of the above problem, a novel water-cooling fermentation tank direct drive motor is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a novel water-cooling fermentation tank direct drive motor, solve the problem that the motor of the transmission system of the existing fermentation tank in the background art is selected larger when the load rate is low, the running efficiency is also lower, the transmission of speed reducer or belt pulley cooperation has power loss because of friction loss, makes transmission system efficiency reduce, in addition, the speed reducer adopts lubricating oil lubrication and cooling, and there is also the problem of oil leakage to be solved.

[0005] To achieve the above object, the utility model provides the following technical scheme: a novel water-cooling fermentation tank direct drive motor, including rotor assembly, the both ends of rotor assembly are respectively attached with cylindrical roller bearing and tapered roller bearing, the rotor assembly includes the rotation axis and rotor core that are connected with each other, the rotor core is set to forty poles, the outside of rotor core is provided with stator assembly, the outside of stator assembly is connected with water cooling machine shell, forty-eight slots are set up on the stator assembly, and the stator assembly includes stator core and stator winding that are wound on stator core.

[0006] Preferably, the water cooling machine shell is screw connected with rear end cover and front end cover on both sides.

[0007] Preferably, the water cooling machine shell is screw connected with rear end cover and front end cover on both sides.

[0008] Preferably, the rotor core is fixedly provided with rotor pole on the outside, and the rotor pole is provided with forty groups of circular array settings.

[0009] Preferably, the stator core is provided with forty-eight core slots.

[0010] Compared with the prior art, the novel water-cooled fermentation tank direct drive motor has the beneficial effects as follows:

[0011] 1. The novel water-cooled fermentation tank direct drive motor has the beneficial effects as follows:

[0012] 2. The novel water-cooled fermentation tank direct drive motor has the beneficial effects as follows:

[0013] 3. The novel water-cooled fermentation tank direct drive motor has the beneficial effects as follows: BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an overall split structure schematic view of the utility model;

[0015] Figure 2 It is an internal structure schematic view of the utility model;

[0016] Figure 3 It is a corresponding structure schematic view of the rotor assembly and the stator assembly of the utility model;

[0017] Figure 4 It is a rotating clamping structure schematic view of the rotating shaft of the utility model.

[0018] In the figure: 1, rotor assembly; 11, rotating shaft; 12, rotor core; 121, rotor pole; 2, tapered roller bearing; 3, water-cooled casing; 31, water-cooled input and output pipe; 4, stator assembly; 41, stator winding; 42, stator core; 421, core slot; 5, cylindrical roller bearing; 6, front end cover; 7, rear end cover. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] In order to further understand the content of the utility model, the utility model will be described in detail in combination with the drawings.

[0021] In combination with Figure 1 The utility model discloses a novel water-cooled fermentation tank direct drive motor, including rotor assembly 1, the both ends of rotor assembly 1 are respectively attached with cylindrical roller bearing 5 and tapered roller bearing 2, rotor assembly 1 includes rotating shaft 11 and rotor core 12 connected with each other, rotor core 12 is set to forty poles, the outside of rotor core 12 is provided with stator assembly 4, the outside of stator assembly 4 is connected with water-cooled casing 3, and stator assembly 4 is provided with forty-eight slots, and stator assembly 4 includes stator core 42 and stator winding 41 wound on stator core 42.

[0022] Specific, stator winding 41 is inserted into the stator core 42, the stator assembly 4, the stator assembly 4 hot-pressed into the water-cooled shell 3, rotating shaft 11 and rotor core 12 rotor assembly 1, through the tapered roller bearing 2, cylindrical roller bearing 5, front cover 6, rear cover 7 together with the rotor assembly 1, stator assembly 4, water-cooled shell 3 connected together, consisting of permanent magnet direct drive motor, this structure by changing the high-speed asynchronous motor of the fermentation tank transmission system into a low-speed large torque permanent magnet direct drive motor, and the efficiency of the permanent magnet direct drive motor is higher than that of the asynchronous motor, and the load rate can reach a high operating efficiency in the range of 25% to 125%, the load characteristics of the direct drive motor are more suitable for the load of the fermentation tank, the efficiency of the direct drive motor is very high when running at different speeds, which is more suitable for the driving needs of the new water-cooled fermentation tank. In addition, the number of poles and the number of slots of the motor determine the electromagnetic performance of the motor. In the direct drive motor, the number of poles and the number of slots will affect the winding coefficient of the motor, thereby affecting the efficiency and output torque of the motor. This motor is provided with forty poles by the rotor core 12, and the stator assembly 4 is provided with forty-eight slots. The 40-pole 48-slot winding structure is adopted. The geometry of the rotor and the stator is accurately designed. The motor can be directly connected with the stirring shaft of the fermentation tank without sacrificing performance, simplifying the mechanical structure, reducing mechanical loss, and directly meeting the stirring speed requirements without increasing the speed reducer or belt pulley. At the same time, when the stirring shaft of the tank is directly connected with the rotating shaft 11, the weight of the stirring shaft is borne by the direct drive motor, which has a high requirement for the bearing structure. This structure adopts matched tapered roller bearings 2 and cylindrical roller bearings 5. The cylindrical roller bearing 5 mainly bears the radial load, while the tapered roller bearing 2 bears the radial and axial loads. It can effectively disperse and bear large composite load, improve the stability and rigidity of the whole bearing system, which is particularly important for bearing axial load, and can well meet the load requirements of the fermentation tank.

[0023] The utility model will be further described in connection with the embodiments below.

[0024] Embodiment one:

[0025] In combination with Figure 2 and Figure 3 , the two sides of the water-cooled shell 3 are respectively connected with the rear cover 7 and the front cover 6 by screws. The front cover 6, the rear cover 7 and the water-cooled shell 3 cooperate to realize the sealing of the motor.

[0026] The outer side of the water-cooled shell 3 is provided with a water-cooled input and output pipe 31. The pipeline of the water-cooled input and output pipe 31 surrounds the water-cooled shell 3. The water-cooled circulation structure of the water-cooled input and output pipe 31 improves the power density of the motor and enhances the heat dissipation capacity of the motor.

[0027] Embodiment two:

[0028] In combination with Figure 3 and Figure 4The rotor core 12 is fixedly provided with rotor poles 121 on the outer side, and the rotor poles 121 are arranged in a circular array of forty groups, and by increasing the rotor poles 121 to forty groups, higher torque can be generated at a lower rotating speed, meaning that the motor can directly drive the load without an additional speed reduction device.

[0029] The stator core 42 is provided with core slots 421, and the core slots 421 are forty-eight, and the rotor poles 121 and the core slots 421 cooperate to reduce the electromagnetic force fluctuation caused by the tooth harmonic, improve the operation stability of the motor and reduce the noise, so that the motor reaches a higher efficiency when operating at a specific rotating speed and load.

[0030] It should be noted that the relational terms herein such as first and second and the like are used only to differentiate one entity or operation from another, and do not necessarily require or imply that any such actual relationship or order exists between or among the entities or operations. Also, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A novel direct-drive motor for a water-cooled fermentation tank, comprising a rotor assembly (1), characterized in that: The two ends of the rotor assembly (1) are respectively fitted with cylindrical roller bearings (5) and tapered roller bearings (2). The rotor assembly (1) comprises a rotating shaft (11) and a rotor core (12) connected to each other. The rotor core (12) is provided with forty poles. A stator assembly (4) is provided on the outside of the rotor core (12). The outside of the stator assembly (4) is connected to a water-cooling housing (3). Forty-eight slots are provided on the stator assembly (4). The stator assembly (4) comprises a stator core (42) and a stator winding (41) wound on the stator core (42).

2. A novel direct-drive motor for a water-cooled fermentation tank according to claim 1, characterized in that: The two sides of the water-cooling casing (3) are respectively connected with a rear end cover (7) and a front end cover (6) by screws.

3. The novel direct-drive motor for a water-cooled fermentation tank according to claim 1, characterized in that: Water-cooling input and output pipes (31) are provided on the outside of the water-cooling casing (3), and the pipes of the water-cooling input and output pipes (31) are provided to surround the water-cooling casing (3).

4. The novel direct-drive motor for a water-cooled fermentation tank according to claim 1, characterized in that: Rotor poles (121) are fixedly arranged on the outer side of the rotor core (12), and the rotor poles (121) are arranged in a circular array of forty groups.

5. The novel direct-drive motor for a water-cooled fermentation tank according to claim 1, characterized in that: The stator iron core (42) is provided with iron core slots (421), and there are forty-eight iron core slots (421).

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