CN216264931U - Cooling structure of lead screw bearing - Google Patents
Cooling structure of lead screw bearing Download PDFInfo
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- CN216264931U CN216264931U CN202123130591.9U CN202123130591U CN216264931U CN 216264931 U CN216264931 U CN 216264931U CN 202123130591 U CN202123130591 U CN 202123130591U CN 216264931 U CN216264931 U CN 216264931U
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- bearing
- cooling water
- lead screw
- water jacket
- screw
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Abstract
The utility model belongs to the field of mechanical equipment, and particularly relates to a cooling structure of a lead screw bearing. The cooling water jacket is fixedly arranged in the bearing seat, the screw rod is supported in the cooling water jacket through the bearing, the inner ring of the bearing acts on the screw rod, and the outer ring of the bearing acts on the cooling water jacket. The utility model has simple structure, good cooling effect and convenient cleaning and maintenance, can effectively reduce the thermal deformation of the bearing lead screw, prolong the service life of the bearing, ensure the transmission precision of the lead screw and further improve the machining precision of a machine tool.
Description
Technical Field
The utility model belongs to the field of mechanical equipment, and particularly relates to a cooling structure of a lead screw bearing.
Background
The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the operation process and ensure the rotation precision of the mechanical rotating body. When the bearing rotates, the balls and the inner ring and the outer ring of the bearing spin, and friction caused by the viscosity of a lubricant and friction caused by bearing load can generate a large amount of heat, so that the service life of the bearing can be shortened, the rotation precision of a rotating body is influenced, and even equipment stops running to influence production. For example, in the precision machine tool industry, a bearing for a screw assembly has an important influence on the machining accuracy of a machine tool. The heat generated when the bearing rotates can not only influence the service life of the bearing, but also cause the thermal deformation of the lead screw to reduce the transmission precision of the lead screw, thereby influencing the processing precision of a machine tool. For this reason, the screw bearing is usually cooled by a cooling structure when being installed and used. At present, the cooling mode that often adopts is design right angle water course on the support of installation bearing, takes away the heat that the bearing produced through flowing into the right angle water course with the refrigerant liquid, and the pipe resistance that this kind of structure produced when using is great, influences the cooling effect of bearing to in case take place to block up also unable clearance.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, provides the screw bearing cooling structure which is simple in structure, good in cooling effect and convenient to clean and maintain, effectively reduces the thermal deformation of a bearing screw, prolongs the service life of a bearing, ensures the transmission precision of the screw and further improves the machining precision of a machine tool.
In order to solve the technical problems, the utility model is realized by the following technical scheme: a cooling structure of a lead screw bearing comprises a lead screw, a bearing seat and a cooling water jacket, wherein the cooling water jacket is fixedly arranged in the bearing seat, the lead screw is supported in the cooling water jacket through the bearing, an inner ring of the bearing acts on the lead screw, and an outer ring of the bearing acts on the cooling water jacket.
In the cooling structure of the lead screw bearing, the outer surface of the cooling water jacket is provided with the spiral cooling water channel, and after the cooling water jacket is mounted with the bearing block, the inner surface of the bearing block is attached to the outer surface of the cooling water jacket, so that the spiral cooling water channel forms a sealed spiral cooling water channel; the bearing seat is also provided with a water inlet and a water outlet which are communicated with the spiral cooling water channel respectively.
According to the cooling structure of the screw bearing, the two ends of the spiral cooling water channel are respectively provided with the water channel sealing devices.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the screw bearing is cooled by arranging the spiral cooling water channel outside the screw bearing, so that the pipe resistance can be effectively reduced, a good cooling effect is realized, and the thermal deformation of the screw caused by heat generated in the high-speed rotation process of the screw and the bearing is effectively avoided, thereby ensuring the transmission precision of the screw and further ensuring the machining precision of a machine tool. And the spiral cooling water channel adopts a detachable structure, so that the spiral cooling water channel is easy to clean and maintain.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is an external structural view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, the cooling structure of a screw bearing of the present invention includes a bearing seat 1, a cooling water jacket 2, a screw 3, and a bearing 4. The cooling water jacket 2 is coaxially arranged in the bearing seat 1, the screw rod 3 is supported by the bearing 4, the inner ring of the bearing 4 acts on the screw rod 3, and the outer ring of the bearing 4 acts on the cooling water jacket 2.
And after the cooling water jacket 2 is mounted with the bearing seat 1, the inner surface of the bearing seat 1 is attached to the outer surface of the cooling water jacket 2, so that the spiral cooling water channel 21 is formed in the spiral cooling water channel. In order to prevent the spiral cooling water passage 21 from leaking, a seal groove 22 and a seal groove 21 are provided in the cooling water jacket 2 and the bearing housing 1, respectively, and left and right sides of the spiral cooling water passage 21 can be sealed by installing seal rings in the seal groove 22 and the seal groove 21.
The bearing seat 1 is respectively provided with a water inlet 12 and a water outlet 13, and the water inlet 12 and the water outlet 13 are respectively communicated with the spiral cooling water channel 21 and are respectively positioned at two ends of the spiral cooling water channel 21. When the screw rod 3 rotates, the cooling liquid is input from the water inlet 12, enters the spiral cooling water channel 21 and flows out from the water outlet 13 to form a cooling circulation, so that the screw rod 3 and the bearing 4 are kept at a constant temperature, and thermal deformation is avoided.
Although the present invention has been described in detail hereinabove, the present invention is not limited thereto, and those skilled in the art can make various modifications in accordance with the principle of the present invention. Thus, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.
Claims (3)
1. The cooling structure of the lead screw bearing is characterized by comprising a lead screw, a bearing seat and a cooling water jacket, wherein the cooling water jacket is fixedly arranged in the bearing seat, the lead screw is supported in the cooling water jacket through the bearing, an inner ring of the bearing acts on the lead screw, and an outer ring of the bearing acts on the cooling water jacket.
2. The cooling structure of the screw bearing according to claim 1, wherein the outer surface of the cooling water jacket is provided with a spiral cooling water channel, and after the cooling water jacket is mounted on the bearing seat, the inner surface of the bearing seat is attached to the outer surface of the cooling water jacket, so that the spiral cooling water channel forms a sealed spiral cooling water channel; the bearing seat is also provided with a water inlet and a water outlet which are communicated with the spiral cooling water channel respectively.
3. The cooling structure of a screw bearing according to claim 2, wherein water passage sealing means are provided at both ends of the spiral cooling water passage, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123130591.9U CN216264931U (en) | 2021-12-14 | 2021-12-14 | Cooling structure of lead screw bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123130591.9U CN216264931U (en) | 2021-12-14 | 2021-12-14 | Cooling structure of lead screw bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216264931U true CN216264931U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123130591.9U Active CN216264931U (en) | 2021-12-14 | 2021-12-14 | Cooling structure of lead screw bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216264931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511569A (en) * | 2023-05-25 | 2023-08-01 | 北京工研精机股份有限公司 | Circulation cooling system of vertical coordinate boring machine transmission structure |
-
2021
- 2021-12-14 CN CN202123130591.9U patent/CN216264931U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511569A (en) * | 2023-05-25 | 2023-08-01 | 北京工研精机股份有限公司 | Circulation cooling system of vertical coordinate boring machine transmission structure |
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