CN220622526U - Bearing device and top-in stirrer - Google Patents
Bearing device and top-in stirrer Download PDFInfo
- Publication number
- CN220622526U CN220622526U CN202320981894.1U CN202320981894U CN220622526U CN 220622526 U CN220622526 U CN 220622526U CN 202320981894 U CN202320981894 U CN 202320981894U CN 220622526 U CN220622526 U CN 220622526U
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- Prior art keywords
- sealing sleeve
- bearing
- sealing
- shaft
- air duct
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- 238000007789 sealing Methods 0.000 claims abstract description 97
- 238000003756 stirring Methods 0.000 claims abstract description 59
- 239000012295 chemical reaction liquid Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000004308 accommodation Effects 0.000 claims 2
- 239000007788 liquid Substances 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model discloses a bearing device and a top-in stirrer, and belongs to the technical field of top-in stirrers. The utility model comprises a sealing sleeve, wherein the sealing sleeve is a hollow tube with one sealed end, a fixed shaft is arranged in the sealing sleeve, the fixed shaft and the sealing sleeve are coaxially arranged, the fixed shaft is connected with the sealing sleeve through a bearing, the bearing is close to the sealing end of the sealing sleeve, and the fixed shaft can rotate around an axis relative to the sealing sleeve. An air duct is further arranged in the sealing sleeve, one end of the air duct is close to the bearing, the other end of the air duct is arranged outside the sealing sleeve, and an air valve is arranged in the air duct. The utility model is provided with the gas sealing space, the bearing works in the gas sealing space, the reaction liquid is prevented from contacting the bearing, and the normal work of the stirring shaft is ensured.
Description
Technical Field
The utility model belongs to the technical field of top-in type mixers, and particularly relates to a bearing device.
Background
The stirring is needed during production of chemical products, the jacking stirrer can be selected sometimes during stirring, the jacking stirrer comprises a motor and a stirring rod, the motor is connected with the top end of the stirring rod, the bottom end of the stirring rod stretches into reaction liquid for stirring, and as the bottom end of the stirring rod is not provided with a fixing device, the bottom end of the stirring rod is unstable and is easy to stir unevenly during high-speed rotation. To this problem, chinese patent application No. 201710294210.X discloses a vertical stirring device, which is provided with a stirring cylinder and a stirring rod, wherein the stirring rod penetrates from the top end of the stirring cylinder and penetrates from the bottom end of the stirring cylinder, so that the stirring rod can stably rotate. However, the device lacks a sealing structure between the stirring rod and the bottom end of the stirring cylinder. In practical application, most of the reaction liquid is mixed liquid, generally has corrosiveness or is mixed with particles, and the reaction liquid easily enters into a gap between the stirring rod and the bottom end of the stirring cylinder, so that the stirring shaft is damaged, and the production is influenced.
Disclosure of Invention
In order to solve the above-mentioned drawbacks, the present utility model provides a bearing device and a top-in mixer, which can fix a mixer shaft and prevent a reaction solution from affecting the mixer shaft.
The first aspect of the utility model provides a bearing device, comprising a sealing sleeve, wherein the sealing sleeve is a hollow tube with one end sealed, a fixed shaft is arranged in the sealing sleeve, the fixed shaft is coaxially arranged with the sealing sleeve, the fixed shaft is connected with the sealing sleeve through a bearing, the bearing is close to the sealing end of the sealing sleeve, and the sealing sleeve can rotate around an axis relative to the fixed shaft;
an air duct is further arranged in the sealing sleeve, one end of the air duct is close to the bearing, the other end of the air duct is arranged outside the sealing sleeve, and an air valve is arranged in the air duct;
the sealing end of the sealing sleeve can be connected with the bottom end of the stirring shaft, and meanwhile, the bottom end of the fixing shaft can be connected with the bottom surface of the stirring machine body, so that the bottom end of the stirring shaft is fixed; the air duct ventilates to the sealing sleeve, so that a gas sealing space exists between the reaction liquid level and the sealing end of the sealing sleeve.
Further, a water retaining pad is further arranged in the sealing sleeve, an accommodating space is formed between the water retaining pad and the sealing end of the sealing sleeve, and the bearing is arranged in the accommodating space.
Further, one end of the air duct is arranged on one side, far away from the bearing, of the water retaining pad.
A second aspect of the utility model provides a top-entry mixer comprising a bearing arrangement as described above.
Further, the stirring device comprises a stirring machine barrel and a stirring shaft arranged in the stirring machine barrel, wherein the stirring shaft is a hollow rod, the sealing end of the sealing sleeve stretches into and is fixed at the bottom end of the stirring shaft, and the bottom end of the fixing shaft is connected with the bottom surface of the stirring machine barrel.
The beneficial effects are that:
according to the stirring shaft, the sealing sleeve, the bearing and the fixed shaft are arranged, so that the sealing sleeve can rotate relative to the fixed shaft, the sealing sleeve is connected with the bottom end of the stirring shaft, and meanwhile, the fixed shaft is connected with the bottom surface of the stirring machine body, so that the bottom end of the stirring shaft is fixed. Through setting up air duct and pneumatic valve, when using device, when the reaction liquid reached sealed sleeve's bottom, namely when the open end, ventilate in to sealed sleeve, make the internal atmospheric pressure of sealed sleeve increase to form the gas seal space, the bearing is at the work of gas seal space, prevents that the reaction liquid from contacting the bearing, guarantees the normal work of (mixing) shaft.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
fig. 1 is a schematic view of a top-loading mixer according to an embodiment of the present utility model.
In the figure, 1, a fixed shaft; 2. a bearing; 3. a closed sleeve; 4. an air duct; 5. an air valve; 6. a water-blocking pad; 7. a mixer drum; 8. a stirring shaft.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, a first aspect of the present utility model provides a bearing device, including a sealing sleeve 3, the sealing sleeve 3 is a hollow tube with one end sealed, a fixed shaft 1 is disposed in the sealing sleeve 3, the fixed shaft 1 is coaxially disposed with the sealing sleeve 3, the fixed shaft 1 is connected with the sealing sleeve 3 through a bearing 2, the bearing 2 is close to a sealing end of the sealing sleeve 3, the fixed shaft 1 can rotate around an axis relative to the sealing sleeve 3, and the axis refers to an axis of the fixed shaft 1. An air duct 4 is further arranged in the sealing sleeve 3, one end of the air duct 4 is close to the bearing 2, the other end of the air duct 4 is arranged outside the sealing sleeve 3, and an air valve 5 is arranged in the air duct 4.
The sealing end of the sealing sleeve 3 can be connected with the bottom end of a stirring shaft, the stirring shaft is a stirring shaft of a top-in stirrer, the stirring shaft is not limited in form, and can be a solid shaft or a hollow shaft, and the connection mode is preferably detachable connection. Meanwhile, the bottom end of the fixed shaft 1 can be connected with the bottom surface of the mixer body, so that the bottom end of the mixing shaft is fixed; the gas-guide tube 4 is ventilated to the sealing sleeve 3, so that a gas sealing space exists between the reaction liquid surface and the sealing end of the sealing sleeve 3.
According to the stirring shaft, the sealing sleeve 3, the bearing 2 and the fixed shaft 1 are arranged, so that the sealing sleeve 3 can rotate relative to the fixed shaft 1, the sealing sleeve 3 is connected with the bottom end of the stirring shaft, and meanwhile, the fixed shaft 1 is connected with the bottom surface of the stirring machine body, so that the bottom end of the stirring shaft is fixed. Through setting up air duct 4 and pneumatic valve 5, when the user device, when the reaction liquid reached the bottom of sealed sleeve 3, namely when the open end, ventilate in sealed sleeve 3, make the atmospheric pressure in the sealed sleeve 3 increase to form the gas seal space, bearing 2 work in the gas seal space, prevent that the reaction liquid from contacting the bearing, guarantee the normal work of (mixing) shaft.
In a specific embodiment, a water blocking pad 6 is further arranged in the sealing sleeve 3, an accommodating space is formed between the water blocking pad 6 and the sealing end of the sealing sleeve 3, and a bearing is arranged in the accommodating space. The water-blocking pad 6 can realize physical blocking and further protect the bearing.
In one embodiment, one end of the air duct 4 is disposed on a side of the water barrier 6 remote from the bearing 2.
A second aspect of the utility model provides a top-entry mixer comprising a bearing arrangement as described above.
In a specific embodiment, the top-in stirrer comprises a stirrer cylinder 7 and a stirring shaft 8 arranged in the stirrer cylinder 7, the stirring shaft 8 is a hollow rod, the sealing end of the sealing sleeve 3 extends into and is fixed at the bottom end of the stirring shaft 8, and the bottom end of the fixed shaft 1 is connected with the bottom surface of the stirrer cylinder 7. Wherein, the one end that the air duct 4 is kept away from bearing 2 sets up in the outside of mixer barrel 7, is convenient for add gas to sealed sleeve 3.
The following are specific examples.
Example 1
The embodiment consists of a fixed shaft 1, a bearing 2, a sealing sleeve 3, an air duct 4, an air valve 5 and a water retaining pad 6.
The sealing sleeve 3 stretches into from the bottom of the hollow stirring shaft 8 and is fixedly connected with the stirring shaft 8, the fixed shaft 1 is fixed at the bottom of the stirring machine barrel 7, the bearing 2 is arranged on the fixed shaft 1 and stretches into the sealing sleeve 3, the water blocking pad 6 is arranged below the bearing 2, the air duct 4 is tightly attached to the fixed shaft 1, the air outlet at the upper end of the air duct 4 stretches into a proper position in the sealing sleeve 3, and the air inlet at the lower end of the air duct 4 is connected with the air valve 5 and is led out of the stirring machine barrel 7.
When the stirrer works, reaction liquid is filled, when the liquid level reaches the bottom surface of the sealing sleeve 3, the sealing sleeve 3 is sealed by the liquid level, a gas sealing space is formed inside, when the liquid is filled continuously, the air pressure inside the sealing sleeve 3 can prevent the liquid from continuously rushing in, the sealing sleeve 3 always keeps an environment full of air, a good working environment is provided for the bearing 2, and a waterproof pad 6 below the bearing 2 is used for preventing liquid splashed by the stirrer during work from entering the bearing 2. When the gas in the sealing sleeve 3 slightly leaks or is slightly dissolved in the stirring liquid, the liquid level 2 in the sealing sleeve 3 rises, and the gas flows down along the gas guide pipe 4 when rising to the upper end surface of the gas guide pipe 4, at the moment, the gas can be filled into the sealing sleeve 3 through the gas valve 5, so that the gas pressure in the sealing sleeve 3 is improved, and the gas slightly leaks and slightly dissolved in the stirring liquid is supplemented.
The sealing sleeve 3 and the liquid level self-seal form a sealed space, a good working environment is provided for the bearing 2, the stirring shaft 8 is supported in an upper and lower two-point rotating mode, stability of the stirring shaft 8 when the speed is too high is guaranteed, and the sealing sleeve 3 is filled with air through the air duct 4 and the air valve 5, so that safety and monitoring effects are achieved.
The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.
Claims (5)
1. The bearing device is characterized by comprising a sealing sleeve (3), wherein the sealing sleeve (3) is a hollow tube with one end sealed, a fixed shaft (1) is arranged in the sealing sleeve (3), the fixed shaft (1) and the sealing sleeve (3) are coaxially arranged, the fixed shaft (1) is connected with the sealing sleeve (3) through a bearing (2), the bearing (2) is close to the sealing end of the sealing sleeve (3), and the sealing sleeve (3) can rotate around an axis relative to the fixed shaft (1);
an air duct (4) is further arranged in the sealing sleeve (3), one end of the air duct (4) is close to the bearing (2), the other end of the air duct (4) is arranged outside the sealing sleeve (3), and an air valve (5) is arranged in the air duct (4);
the sealing end of the sealing sleeve (3) can be connected with the bottom end of the stirring shaft, and the bottom end of the fixed shaft (1) can be connected with the bottom surface of the stirring machine body to realize the bottom end fixing of the stirring shaft; the air duct (4) is used for ventilating the sealing sleeve (3) so that a gas sealing space exists between the reaction liquid level and the sealing end of the sealing sleeve (3).
2. Bearing device according to claim 1, characterized in that a water-retaining mat (6) is also provided in the sealing sleeve (3), an accommodation space being formed between the water-retaining mat (6) and the sealing end of the sealing sleeve (3), the bearing (2) being provided in the accommodation space.
3. Bearing arrangement according to claim 2, characterized in that one end of the air duct (4) is arranged at the side of the water deflector (6) remote from the bearing (2).
4. A jack-in mixer comprising the bearing device of any one of claims 1 to 3.
5. The top-in mixer according to claim 4, comprising a mixer cylinder (7) and a mixer shaft (8) arranged in the mixer cylinder (7), wherein the mixer shaft (8) is a hollow rod, the sealing end of the sealing sleeve (3) extends into and is fixed at the bottom end of the mixer shaft (8), and the bottom end of the fixed shaft (1) is connected with the bottom surface of the mixer cylinder (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320981894.1U CN220622526U (en) | 2023-04-27 | 2023-04-27 | Bearing device and top-in stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320981894.1U CN220622526U (en) | 2023-04-27 | 2023-04-27 | Bearing device and top-in stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220622526U true CN220622526U (en) | 2024-03-19 |
Family
ID=90225115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320981894.1U Active CN220622526U (en) | 2023-04-27 | 2023-04-27 | Bearing device and top-in stirrer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220622526U (en) |
-
2023
- 2023-04-27 CN CN202320981894.1U patent/CN220622526U/en active Active
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| GR01 | Patent grant |