Rotary stirring device with good sealing effect

Abstract

The utility model discloses a rotary stirring device with a good sealing effect, and belongs to the field of stirring equipment. Comprising a rotary stirring cavity, a stirring cavity gear, a stirring rotating shaft, a bearing, a bearing seat and a bearing end cover, the rotary stirring cavity, the stirring cavity gear, the bearing seat and the bearing end cover are sequentially arranged from top to bottom, one end of the stirring rotating shaft is connected with the bottom of the rotary stirring cavity, the other end of the stirring rotating shaft extends into the bearing end cover, and the stirring rotating shaft penetrates through the stirring cavity gear and the bearing. The stirring rotating shaft is fixedly connected with the stirring cavity gear; the bearing is arranged below the stirring cavity gear, and the bearing is mounted in the bearing seat; a liquid inlet is formed in the bearing seat, a liquid outlet is formed in the bearing end cover, a liquid inlet channel and a liquid outlet channel are formed in the stirring rotating shaft, and a refrigeration groove is formed in the bottom of the rotary stirring cavity. The first sealing ring can cope with centrifugation, vacuum and hydraulic pressure faced by the liquid inlet, the second sealing ring is used for sealing the liquid outlet, and the sealing effect can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stirring equipment, and particularly relates to a rotary stirring device with good sealing effect. Background Art

[0002] Latex or rubber chemical products are common in industrial production and daily life. The glue raw materials used to produce and process such products are prone to form bubbles inside the glue during the processing. Due to the high viscosity of the glue, it is difficult for the bubbles to escape from the glue on their own. In order to ensure the quality and appearance of the product, the glue raw materials need to be degassed during the processing of such products.

[0003] Deaerator is a commonly used stirring and mixing equipment for basic materials. It is the main tool to achieve vacuum deaeration treatment of glue raw materials. It is mainly used in the mixing and stirring of materials for high-tech and sophisticated products such as LED, LCD, medical equipment, electronic components, nano-powder materials, fine chemical materials, printed electronic materials, electronic packaging materials and new energy materials. It can achieve the mixing of liquid and solid, liquid and liquid, solid and solid substances.

[0004] When this type of vacuum degassing and mixing equipment is centrifugally rotating and mixing, its mixing chamber is in a vacuum negative pressure state; at the same time, based on the heat dissipation requirements of the mixing chamber, cooling water is usually connected to the bottom of the mixing chamber. Therefore, its sealing structure needs to face the triple test of negative pressure, cooling water, and centrifugation. The existing sealing structure is difficult to meet its sealing requirements, and usually has problems such as leakage after long-term use. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a rotary stirring device with good sealing effect, which has excellent sealing effect and long service life.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] The utility model provides a rotary stirring device with good sealing effect, comprising: a rotary stirring chamber, a stirring chamber gear, a stirring rotating shaft, a bearing, a bearing seat, and a bearing end cover, wherein the rotary stirring chamber, the stirring chamber gear, the bearing seat, and the bearing end cover are sequentially arranged up and down, one end of the stirring rotating shaft is connected to the bottom of the rotary stirring chamber, and the other end extends into the bearing end cover, the stirring rotating shaft is penetrated by the stirring chamber gear and the bearing, and the stirring rotating shaft is fixedly connected to the stirring chamber gear; the bearing is arranged below the stirring chamber gear, and the bearing is installed in the bearing seat; a liquid inlet is arranged on the bearing seat, a liquid outlet is arranged on the bearing end cover, a liquid inlet channel and a liquid outlet channel are arranged in the stirring rotating shaft, a refrigeration tank is arranged at the bottom of the rotary stirring chamber, the liquid inlet is communicated with the refrigeration tank through the liquid inlet channel, and the liquid outlet is communicated with the refrigeration tank through the liquid outlet channel;

[0008] The rotary stirring cavity and the stirring rotating shaft are provided with fixing holes corresponding to the positions, and fixing parts are installed in the fixing holes, and the rotary stirring cavity and the stirring rotating shaft are fixedly connected through the fixing parts;

[0009] The bearing seat is provided with a first sealing ring and a second sealing ring which are sleeved on the outer wall of the stirring rotating shaft, the first sealing ring is arranged between the liquid inlet and the rotary stirring cavity, and the second sealing ring is arranged between the liquid inlet and the liquid outlet;

[0010] There are several first sealing rings, and a double-lip oil seal is adopted.

[0011] In the present application, the rotary stirring chamber will perform centrifugal rotation in a vacuum environment when working. Since the rotary stirring chamber and the stirring rotating shaft are fixedly connected through fixing holes and fixing parts, the vacuum chamber of the rotary stirring chamber will extend to the stirring rotating shaft through the fixing holes, thereby causing a certain vacuum pressure to the liquid inlet channel and the liquid outlet channel in the stirring rotating shaft. The liquid inlet not only bears the sealing pressure of the refrigerant, but also the sealing pressure caused by vacuum and centrifugation. Since the liquid outlet is at the bottom, it faces less sealing pressure. This solution arranges multiple double-lip oil seals above the liquid inlet to cope with vacuum, centrifugation, and hydraulic pressure, and cooperates with the second sealing ring to enhance the sealing performance and ensure the sealing effect.

[0012] Further, the double-lip oil seal includes an oil seal body and an outer ring body, the outer side of the oil seal body is provided with an annular groove, the outer ring body is embedded in the annular groove, the inner side of the oil seal body is provided with an annular first lip and a second lip, an elastic buffer groove is provided between the first lip and the oil seal body, and a buffer spring is provided in the elastic buffer groove. In the present application, the buffer spring can be adjusted to hold the first lip against the side wall of the stirring rotating shaft to ensure the sealing effect.

[0013] Furthermore, a third sealing ring is provided between the rotary stirring chamber and the stirring rotating shaft. The third sealing ring is located between the refrigeration groove and the fixing hole and is used for the first layer of sealing between the vacuum environment and the stirring rotating shaft.

[0014] Furthermore, a plurality of bearings are provided, one of which is wrapped around the upper portion of the stirring rotating shaft, and another is wrapped around the lower portion of the stirring rotating shaft.

[0015] Furthermore, a liquid inlet buffer tank communicating with the liquid inlet and the liquid inlet channel is provided between the bearing end cover and the bottom of the stirring rotating shaft, and a fourth sealing ring is provided between the bearing seat and the bearing end cover. The fourth sealing ring can be used to achieve sealing between the bearing seat and the bearing end cover.

[0016] Furthermore, the rotary stirring device also includes a revolution drive motor, a rotation drive motor, a revolution connection seat, and a rotation transmission assembly, wherein the bearing seat is connected to the output shaft of the revolution drive motor through the revolution connection seat; and the output shaft of the rotation drive motor is connected to the stirring chamber gear through the rotation transmission assembly, thereby realizing the revolution and rotation of the rotary stirring chamber.

[0017] Furthermore, a liquid inlet interface and a liquid outlet interface are provided at the bottom of the revolution drive motor, and a liquid inlet channel and a liquid outlet channel are provided in the shaft of the revolution drive motor, one end of the liquid inlet channel is connected to the liquid inlet interface, and the other end is connected to the liquid inlet through a pipeline; one end of the liquid outlet channel is connected to the liquid outlet interface, and the other end is connected to the liquid outlet through a pipeline. The refrigerant enters the rotary stirring chamber from the revolution drive motor, and then returns to the revolution drive motor, forming a complete circulation loop, which can cool the rotary stirring chamber and the revolution drive motor at the same time.

[0018] Compared with the prior art, when the rotary stirring chamber of the present device is working, it can cope with the centrifugal, vacuum and hydraulic pressure faced by the liquid inlet through the first sealing ring formed by multiple double-lip oil seals, and seal the liquid outlet through the second sealing ring, which can effectively improve the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of this embodiment.

[0020] Figure 2 It is a cross-sectional view of this embodiment.

[0021] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0022] Figure 4 It is a schematic diagram of the structure of the stirring rotating shaft.

[0023] Figure 5 Schematic diagram of the structure of the first sealing ring.

[0024] Figure 6 This is an exploded view of the first sealing ring.

[0025] Description of labels:

[0026] 1. Rotating stirring chamber; 2. Stirring chamber gear; 3. Stirring rotating shaft; 4. Bearing; 5. Bearing seat; 6. Bearing end cover; 7. Liquid inlet; 8. Liquid outlet; 9. Liquid inlet channel; 10. Liquid outlet channel; 11. Refrigeration tank; 12. Fixing hole; 13. First sealing ring; 131. Oil seal body; 132. Outer ring; 133. Annular groove; 134. First lip; 135. Second lip; 136. Elastic buffer groove; 137. Buffer spring; 14. Second sealing ring; 15. Third sealing ring; 16. Liquid inlet buffer groove; 17. Fourth sealing ring; 18. Revolution drive motor; 19. Rotation drive motor; 20. Revolution connecting seat; 21. Rotation transmission assembly; 22. Liquid inlet interface; 23. Liquid outlet interface; 24. Liquid inlet flow channel; 25. Liquid outlet flow channel. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] To achieve the above purpose, the technical solution of the utility model is as follows:

[0029] See also Figure 1-6 As shown, the present embodiment provides a rotary stirring device with good sealing effect, comprising: a rotary stirring chamber 1, a stirring chamber gear 2, a stirring rotating shaft 3, a bearing 4, a bearing seat 5, and a bearing end cover 6. The rotary stirring chamber 1, the stirring chamber gear 2, the bearing seat 5, and the bearing end cover 6 are sequentially arranged up and down, one end of the stirring rotating shaft 3 is connected to the bottom of the rotary stirring chamber 1, and the other end extends into the bearing end cover 6. The stirring rotating shaft 3 is penetrated by the stirring chamber gear 2 and the bearing 4, and the stirring rotating shaft 3 is fixedly connected to the stirring chamber gear 2; the bearing 4 is arranged below the stirring chamber gear 2, and the bearing 4 is installed in the bearing seat 5; a liquid inlet 7 is arranged on the bearing seat 5, a liquid outlet 8 is arranged on the bearing end cover 6, a liquid inlet channel 9 and a liquid outlet channel 10 are arranged in the stirring rotating shaft, and a cooling tank 11 is arranged at the bottom of the rotary stirring chamber 1, the liquid inlet 7 is communicated with the cooling tank 11 through the liquid inlet channel 9, and the liquid outlet 8 is communicated with the cooling tank 11 through the liquid outlet channel 10;

[0030] The rotary stirring chamber 1 and the stirring shaft 3 are provided with corresponding fixing holes 12, and fixing parts are installed in the fixing holes 12. The rotary stirring chamber 1 and the stirring shaft 3 are fixedly connected by the fixing parts; the fixing parts can be common accessories such as screws.

[0031] The bearing seat 5 is provided with a first sealing ring 13 and a second sealing ring 14 which are sleeved on the outer wall of the stirring rotating shaft 3. The first sealing ring 13 is arranged between the liquid inlet 7 and the rotary stirring chamber 1, and the second sealing ring 14 is arranged between the liquid inlet 7 and the liquid outlet 8.

[0032] There are several first sealing rings 13, and a double-lip oil seal is adopted.

[0033] In the present application, the rotary stirring chamber 1 will perform centrifugal rotation in a vacuum environment when working. Since the rotary stirring chamber 1 and the stirring rotating shaft 3 are fixedly connected through the fixing hole 12 and the fixing piece, the vacuum chamber of the rotary stirring chamber 1 will extend to the stirring rotating shaft 3 through the fixing hole 12, thereby causing a certain vacuum pressure to the liquid inlet channel 9 and the liquid outlet channel 10 in the stirring rotating shaft 3. The liquid inlet 7 not only bears the sealing pressure of the refrigerant, but also the sealing pressure caused by vacuum and centrifugation. Since the liquid outlet 8 is at the bottom, it faces less sealing pressure. This solution arranges multiple double-lip oil seals above the liquid inlet 7 to cope with vacuum, centrifugation, and hydraulic pressure, and cooperates with the second sealing ring 14 to enhance the sealing performance and ensure the sealing effect.

[0034] Further, the double-lip oil seal includes an oil seal body 131 and an outer ring body 132. An annular groove 133 is provided on the outer side of the oil seal body 131. The outer ring body 132 is embedded in the annular groove 133. An annular first lip 134 and a second lip 135 are provided on the inner side of the oil seal body 131. An elastic buffer groove 136 is provided between the first lip 134 and the oil seal body 131. A buffer spring 137 is provided in the elastic buffer groove. In the present application, the first lip 134 can be adjusted to be held against the side wall of the stirring rotating shaft 3 by the buffer spring 137 to ensure the sealing effect.

[0035] Furthermore, a third sealing ring 15 is provided between the rotary stirring chamber 1 and the stirring rotating shaft 3 . The third sealing ring 15 is located between the cooling groove 11 and the fixing hole 12 and is used for the first layer of sealing between the vacuum environment and the stirring rotating shaft 3 .

[0036] Furthermore, a plurality of bearings 4 are provided, one of which is wrapped around the upper portion of the stirring rotating shaft 3 , and another one is wrapped around the lower portion of the stirring rotating shaft 3 .

[0037] Furthermore, a liquid inlet buffer groove 16 connecting the liquid inlet 7 and the liquid inlet channel 9 is provided between the bearing end cover 6 and the bottom of the stirring rotating shaft 3, and a fourth sealing ring 17 is also provided between the bearing seat 5 and the bearing end cover 6. The fourth sealing ring 17 can be used to achieve sealing between the bearing seat 5 and the bearing end cover 6.

[0038] Furthermore, the rotary stirring device also includes a revolution drive motor 18, a rotation drive motor 19, a revolution connection seat 20, and a rotation transmission assembly 21. The bearing seat 5 is connected to the output shaft of the revolution drive motor 18 through the revolution connection seat 20; the output shaft of the rotation drive motor 19 is connected to the stirring chamber gear 2 through the rotation transmission assembly 21; and the revolution connection seat 20 is fixedly connected to the rotation transmission assembly 21. The revolution drive motor 18 drives the revolution connection seat 20 and the rotary stirring chamber 1 to rotate through the revolution connection seat 20 to achieve revolution; the rotation drive motor 19 drives the rotary stirring chamber 1 to rotate through the rotation transmission assembly 21, thereby achieving the revolution and rotation of the rotary stirring chamber 1.

[0039] Furthermore, a liquid inlet interface 22 and a liquid outlet interface 23 are provided at the bottom of the revolution drive motor 18, and a liquid inlet channel 24 and a liquid outlet channel 25 are provided in the shaft of the revolution drive motor 18. One end of the liquid inlet channel 24 is connected to the liquid inlet interface 22, and the other end is connected to the liquid inlet 7 through a pipeline; one end of the liquid outlet channel 25 is connected to the liquid outlet interface 23, and the other end is connected to the liquid outlet 8 through a pipeline. The refrigerant enters the rotary stirring chamber 1 from the revolution drive motor 18, and then returns to the revolution drive motor 18, forming a complete circulation loop, which can cool the rotary stirring chamber 1 and the revolution drive motor 18 at the same time.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary stirring device with good sealing effect, characterized in that: The invention comprises: a rotary stirring chamber, a stirring chamber gear, a stirring rotating shaft, a bearing, a bearing seat, and a bearing end cover, wherein the rotary stirring chamber, the stirring chamber gear, the bearing seat, and the bearing end cover are sequentially arranged up and down, one end of the stirring rotating shaft is connected to the bottom of the rotary stirring chamber, and the other end extends into the bearing end cover, the stirring rotating shaft is penetrated by the stirring chamber gear and the bearing, and the stirring rotating shaft is fixedly connected to the stirring chamber gear; the bearing is arranged below the stirring chamber gear, and the bearing is installed in the bearing seat; a liquid inlet is arranged on the bearing seat, a liquid outlet is arranged on the bearing end cover, a liquid inlet channel and a liquid outlet channel are arranged in the stirring rotating shaft, a cooling tank is arranged at the bottom of the rotary stirring chamber, the liquid inlet is communicated with the cooling tank through the liquid inlet channel, and the liquid outlet is communicated with the cooling tank through the liquid outlet channel; The rotary stirring cavity and the stirring rotating shaft are provided with fixing holes corresponding to the positions, and fixing parts are installed in the fixing holes, and the rotary stirring cavity and the stirring rotating shaft are fixedly connected through the fixing parts; The bearing seat is provided with a first sealing ring and a second sealing ring which are sleeved on the outer wall of the stirring rotating shaft, the first sealing ring is arranged between the liquid inlet and the rotary stirring cavity, and the second sealing ring is arranged between the liquid inlet and the liquid outlet; There are several first sealing rings, and a double-lip oil seal is adopted.

2. A rotary stirring device with good sealing effect as claimed in claim 1, characterized in that: The double-lip oil seal includes an oil seal body and an outer ring body. An annular groove is arranged on the outer side of the oil seal body, and the outer ring body is embedded in the annular groove. An annular first lip and a second lip are arranged on the inner side of the oil seal body. An elastic buffer groove is arranged between the first lip and the oil seal body, and a buffer spring is arranged in the elastic buffer groove.

3. A rotary stirring device with good sealing effect as claimed in claim 1, characterized in that: A third sealing ring is arranged between the rotary stirring cavity and the stirring rotating shaft, and the third sealing ring is located between the refrigeration groove and the fixing hole.

4. A rotary stirring device with good sealing effect as claimed in claim 1, characterized in that: The bearings are provided in plurality, one of which is wrapped around the upper portion of the stirring rotating shaft, and the other is wrapped around the lower portion of the stirring rotating shaft.

5. A rotary stirring device with good sealing effect as claimed in claim 1, characterized in that: A liquid inlet buffer groove communicating with the liquid inlet and the liquid inlet channel is arranged between the bearing end cover and the bottom of the stirring rotating shaft, and a fourth sealing ring is also arranged between the bearing seat and the bearing end cover.

6. A rotary stirring device with good sealing effect as claimed in claim 1, characterized in that: The rotary stirring device also includes a revolution drive motor, a rotation drive motor, a revolution connecting seat, and a rotation transmission assembly. The bearing seat is connected to the output shaft of the revolution drive motor through the revolution connecting seat; the output shaft of the rotation drive motor is connected to the stirring chamber gear through the rotation transmission assembly.

7. A rotary stirring device with good sealing effect as claimed in claim 6, characterized in that: A liquid inlet interface and a liquid outlet interface are provided at the bottom of the revolution drive motor, and a liquid inlet channel and a liquid outlet channel are provided in the shaft body of the revolution drive motor. One end of the liquid inlet channel is connected to the liquid inlet interface, and the other end is connected to the liquid inlet through a pipeline; one end of the liquid outlet channel is connected to the liquid outlet interface, and the other end is connected to the liquid outlet through a pipeline.

Images