Heat dissipation structure for lower bearing of powder concentrator
By designing an air-cooled air supply pipe and a multi-vortex generator structure at the lower bearing of the air classifier, turbulent airflow is generated, which solves the high temperature problem of the lower bearing, achieves effective cooling, and improves the operational stability and production efficiency of the equipment.
Patent Information
- Application Number
- CN202422862064.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-23
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-23
AI Technical Summary
The lower bearing of the air classifier was exposed to a high-temperature environment for a long time, causing the equipment to stop and affecting production efficiency.
A heat dissipation structure including a lower bearing housing and an air-cooled air supply pipe was designed. Air-cooled air is supplied through the air-cooled air supply pipe, and turbulent airflow is formed by using a multi-vortex generator and an O-shaped pipe section to increase heat exchange efficiency and achieve cooling of the lower bearing.
This effectively avoids high temperatures in the lower bearing, improving the operational stability and production efficiency of the equipment.
Smart Images
Figure CN223524246U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of powder concentrator, concretely relates to a powder concentrator lower bearing heat dissipation structure. BACKGROUND
[0002] There are many types of powder concentrators, and different types are suitable for different materials, wherein the structure form of the powder concentrator in the micro powder workshop is squirrel cage type, the internal rotor is in high speed rotation state when running, reaches about 120 rotations per minute, there are fixed bearings on the upper and lower parts, the upper bearing is located outside the machine body, the air cooling is fast, and there is no high temperature condition, but the lower bearing is in the machine body, the lower hot air is constantly baked, and the bearing high temperature alarm is easily caused, the equipment is stopped, and the production efficiency is directly affected, so the powder concentrator lower bearing heat dissipation structure is provided. SUMMARY
[0003] In view of the problems in the background art, the utility model aims at providing a powder concentrator lower bearing heat dissipation structure, which effectively solves the problems in the background art.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0005] The powder concentrator lower bearing heat dissipation structure includes the lower bearing sleeve shell that is arranged on the outer side of the powder concentrator lower bearing, the lower bearing sleeve shell is connected with the air cooling gas supply pipe, the air cooling gas supply pipe includes an inlet section, an O-shaped pipe section and an outlet section, the outlet section is connected with the lower bearing sleeve shell, the inlet section is connected with a fan, two groups of multi-vortex generators are symmetrically arranged in the O-shaped pipe section, the multi-vortex generator includes an upstream body and a downstream body arranged along the airflow direction, the upstream body is a column body with a triangular cross section, and the two ends of the upstream body are fixedly connected with the inner wall of the O-shaped pipe section, the downstream body is a column body with a T-shaped cross section, and the two ends of the downstream body are also fixedly connected with the inner wall of the O-shaped pipe section, and the lower bearing sleeve shell is provided with an air outlet.
[0006] Further, the number of air cooling gas supply pipes is four, two of which are symmetrically arranged on the top surface of the lower bearing sleeve shell, and the other two are symmetrically arranged on the bottom surface of the lower bearing sleeve shell.
[0007] Further, the O-shaped pipe section is also provided with a gas speed increasing structure, and the gas speed increasing structure includes a plurality of protrusions arranged on the inner wall of the O-shaped pipe section.
[0008] Further, the protrusions are hemispherical, and a plurality of protrusions are uniformly distributed on the inner wall of the O-shaped pipe section.
[0009] The utility model has the following beneficial technical effects:
[0010] The lower bearing of the powder selecting machine is covered in the lower bearing sleeve shell, and the cooling air flow is supplied into the air cooling pipe to realize the cooling of the lower bearing of the powder selecting machine, so that the lower bearing of the powder selecting machine is prevented from being high temperature easily; in addition, due to the setting of the multi-vortex generating body and the O-shaped pipe section, the air cooling pipe can send out the turbulent cooling air flow, the heat exchange efficiency of the air flow and the lower bearing of the powder selecting machine is increased significantly, and the cooling of the lower bearing of the powder selecting machine is more favorable; the application has novel design, safe and stable use, and strong practicability. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structural schematic view of the embodiment of the utility model;
[0012] Figure 2 It is Figure 1 It is a local enlarged view of A in the middle. DETAILED DESCRIPTION
[0013] The embodiment of the utility model will be further described in detail in combination with the drawings and the embodiment. The following embodiment is used for describing the utility model, but cannot be used to limit the range of the utility model.
[0014] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed in a particular orientation and be operated, therefore, it cannot be understood as the limitation of the utility model. In the description of the utility model, it is necessary to explain that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0015] For example, Figure 1 And Figure 2As shown, the powder concentrator lower bearing heat dissipation structure of the embodiment comprises a lower bearing sleeve 2 sleeved outside a powder concentrator lower bearing 1, the powder concentrator lower bearing 1 is installed on a bearing seat 3, the bearing seat 3 is connected with a machine body 5 through a cross beam 4, the lower bearing sleeve 2 is wrapped in the bearing seat 3 and is provided with a cross beam perforation; the lower bearing sleeve 2 is connected with a forced air supply pipe 6, the forced air supply pipe 6 comprises an inlet section 7, an O-shaped pipe section 8 and an outlet section 9 arranged in sequence from upstream to downstream, the outlet section 9 is connected with the lower bearing sleeve 2, the inlet section 7 is connected with a fan, two groups of multi-vortex generators are symmetrically arranged in the O-shaped pipe section 8, the multi-vortex generator comprises an upstream body 10 and a downstream body 11 arranged along the airflow direction, the upstream body 10 is closer to the inlet section 7, the upstream body 10 is a column with a triangular cross section and the two ends of the upstream body 10 are fixedly connected with the inner wall of the O-shaped pipe section 8, the downstream body 11 is a column with a T-shaped cross section and the two ends of the downstream body are also fixedly connected with the inner wall of the O-shaped pipe section 8, the upstream body 10 and the downstream body 11 are perpendicular to the airflow direction, and gaps are formed between the upstream body 10 and the downstream body 11 and the inner wall of the O-shaped pipe section 8; the lower bearing sleeve 2 is provided with an air outlet 12 close to the center of the bottom surface of the lower bearing sleeve 2, so that the airflow contacts the powder concentrator lower bearing 1 and then is discharged from the lower bearing sleeve 2.
[0016] The number of the forced air supply pipe 6 is four, two of which are symmetrically arranged on the top surface of the lower bearing sleeve 2 and the other two are symmetrically arranged on the bottom surface of the lower bearing sleeve 2, so that the powder concentrator lower bearing 1 can be well cooled around.
[0017] In order to increase the airflow speed close to the multi-vortex generator and facilitate vortex generation, a gas speed-up structure is arranged in the O-shaped pipe section 8, the gas speed-up structure comprises a plurality of protrusions 13 arranged on the inner wall of the O-shaped pipe section 8, the protrusions 13 are semispherical, and the plurality of protrusions 13 are uniformly distributed on the inner wall of the O-shaped pipe section 8 in the circumferential direction, when the airflow flows through the protrusions 13, the flow channel is narrowed and the speed is increased, which is more conducive to vortex generation.
[0018] The working principle of the embodiment is as follows:
[0019] The airflow enters the inlet section 7 and then is divided into two streams into the O-shaped pipe section 8, is accelerated by the gas speed-up structure, flows through the multi-vortex generator, a plurality of vortexes in a vortex state are generated downstream of the multi-vortex generator, the vortexes sent out by the O-shaped pipe section 8 collide and break to form a turbulent airflow which then enters the outlet section 9 and finally enters the lower bearing sleeve 2, the airflow in the lower bearing sleeve 2 contacts and exchanges heat with the powder concentrator lower bearing 1, so that the powder concentrator lower bearing 1 is cooled, the auxiliary cooling of the powder concentrator lower bearing 1 can be realized, and the powder concentrator lower bearing 1 is prevented from being easily high temperature, in addition, due to the arrangement of the multi-vortex generator and the O-shaped pipe section 8, the forced air supply pipe 6 can send out the turbulent cooling airflow, the heat exchange efficiency of the airflow and the powder concentrator lower bearing 1 is significantly increased, and the cooling of the powder concentrator lower bearing 1 is more facilitated.
[0020] The embodiments of the present application are given by way of example and for the purpose of illustration and description only, and are not intended to limit the present application to the forms disclosed. Many modifications and variations of the present application will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, to thereby enable others skilled in the art to best utilize the present application, with various modifications as are suited to the particular use contemplated.
Claims
1. A powder classifier lower bearing heat dissipation structure, characterized in that, The lower bearing sleeve is arranged outside the lower bearing of the powder classifier, and a wind-cooled air supply pipe is connected to the lower bearing sleeve, the wind-cooled air supply pipe comprises an inlet section, an O-shaped pipe section and an outlet section, the outlet section is connected to the lower bearing sleeve, a fan is connected to the inlet section, two groups of multi-vortex generators are symmetrically arranged in the O-shaped pipe section, the multi-vortex generators comprise an upstream body and a downstream body arranged along the airflow direction, the upstream body is a triangular column in cross section, and two ends of the upstream body are fixedly connected to the inner wall of the O-shaped pipe section, the downstream body is a T-shaped column in cross section, and two ends of the downstream body are also fixedly connected to the inner wall of the O-shaped pipe section, and an air outlet is arranged on the lower bearing sleeve.
2. The powder concentrator lower bearing heat dissipation structure according to claim 1, characterized in that, The number of the wind-cooled air supply pipes is four, two of which are symmetrically arranged on the top surface of the lower bearing sleeve, and the other two are symmetrically arranged on the bottom surface of the lower bearing sleeve.
3. The powder concentrator lower bearing heat dissipation structure of claim 1, wherein, A gas speed increasing structure is further arranged in the O-shaped pipe section, the gas speed increasing structure comprises a plurality of protrusions arranged on the inner wall of the O-shaped pipe section.
4. The powder selector lower bearing heat dissipation structure according to claim 3, characterized in that, The protrusions are hemispherical, and a plurality of protrusions are uniformly distributed on the inner wall of the O-shaped pipe section in the circumferential direction.