CN219142040U

CN219142040U - Bearing inner and outer ring temperature detection and cooling device

Info

Publication number: CN219142040U
Application number: CN202320109611.4U
Authority: CN
Inventors: 闫宪锋; 罗鹏展; 赵屹涛; 郝斌; 周洋
Original assignee: Shanxi Mechanical And Electrical Design And Research Institute Co ltd
Current assignee: Shanxi Mechanical And Electrical Design And Research Institute Co ltd
Priority date: 2023-01-16
Filing date: 2023-01-16
Publication date: 2023-06-06
Anticipated expiration: 2033-01-16

Abstract

The utility model provides a temperature detection and cooling device for an inner ring and an outer ring of a bearing, which comprises an improved current collecting slip ring, wherein the improved current collecting slip ring is connected with a stepped shaft through threads, a semiconductor refrigerating sheet and a temperature sensor are arranged on the end face of a rotating end of the improved current collecting slip ring, threads are arranged on an outer ring of a static end of the improved current collecting slip ring and are connected with a shell, and the contact part of the shell and the outer ring of the bearing is provided with the semiconductor refrigerating sheet and the temperature sensor. The temperature detection and cooling device for the inner ring and the outer ring of the bearing with the structure can not only remarkably improve the accuracy of temperature detection of the inner ring and the outer ring of the bearing, but also enable the bearing to be at a proper working temperature.

Description

Bearing inner and outer ring temperature detection and cooling device

Technical Field

The utility model relates to the technical field of bearing detection, in particular to a temperature detection and cooling device for an inner ring and an outer ring of a bearing.

Background

The bearing is a key part of the rotary machine, is widely applied to various fields of machine tools, transportation, aerospace and life, and has the main functions of supporting a mechanical rotary body, reducing the friction coefficient in the motion process and ensuring the rotation precision. The running state of the bearing is related to the stable running of the whole mechanical equipment, and the temperature of the bearing is easy to rise in the running process, so that the bearing can fail.

At present, the temperature measurement of the bearing is stopped at non-contact infrared temperature measurement or a temperature sensor is embedded on a bearing seat. However, actual researches show that the temperature difference exists between the inner ring and the outer ring in the running process of the bearing, the temperature of the inner ring is higher than that of the outer ring, and the running state of the bearing cannot be accurately reflected by the outer ring temperature basically measured by the existing bearing temperature measurement mode. In addition, the precision of measurement by using non-contact infrared temperature measurement is low and is easily influenced by environmental factors. There is a need for a technique for accurately measuring the temperature of the inner race of a bearing.

At present, the state of the bearing still stays in a monitoring state, the cooling of the bearing still stays in a traditional mode of using lubricating oil, an obvious cooling effect is difficult to achieve for equipment running at a high speed, and the cooling of the bearing is lack of pertinence. There is therefore a need for a technique that enables cooling of bearings, and in particular of the inner race of the bearings.

Disclosure of Invention

The utility model aims to provide a temperature detection and cooling device for an inner ring and an outer ring of a bearing, which not only can remarkably improve the accuracy of temperature detection of the inner ring and the outer ring of the bearing, but also can enable the bearing to be at a proper working temperature.

In order to achieve the above purpose, the utility model provides a temperature detection and cooling device for an inner ring and an outer ring of a bearing, which comprises an improved current collecting slip ring, wherein the improved current collecting slip ring is connected with a stepped shaft through threads, a semiconductor refrigerating sheet and a temperature sensor are arranged on the end face of a rotating end of the improved current collecting slip ring, threads are arranged on an outer ring of a static end of the improved current collecting slip ring and are connected with a shell, and the contact part of the shell and the outer ring of the bearing is provided with the semiconductor refrigerating sheet and the temperature sensor.

Preferably, the heat end of the semiconductor refrigeration piece is provided with a heat dissipation plate, and the cold end of the semiconductor refrigeration piece is contacted with the bearing inner ring.

Preferably, the semiconductor refrigerating sheets and the temperature sensors are uniformly distributed, and the number of the semiconductor refrigerating sheets and the number of the temperature sensors are four.

Preferably, the shell is provided with a slotted hole, and the inner ring of the shell is provided with threads.

Preferably, a first gasket is arranged at the contact part of the shell and the bearing, and a second gasket is arranged between the shell and the improved current collecting slip ring.

Preferably, the stepped shaft is in interference fit with the bearing body.

Preferably, a stop washer is arranged on the outer surface of the contact part of the improved current collecting slip ring and the stepped shaft, and a round nut is matched with the outer side of the stop washer.

Therefore, the temperature detection and cooling device for the inner ring and the outer ring of the bearing adopts the structure, the temperature sensor is directly contacted with the inner ring and the outer ring of the bearing, the accuracy of the temperature detection of the inner ring and the outer ring of the bearing can be obviously improved, the temperature sensor analyzes the acquired data so as to control the power supply voltage of the semiconductor refrigerating sheet, the cooling of the bearing is realized, and the bearing can be at a proper working temperature.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of a bearing inner and outer race temperature sensing and reducing device of the present utility model;

FIG. 2 is a schematic diagram of an embodiment of an improved slip ring for current collection in a bearing inner and outer race temperature sensing and cooling device according to the present utility model;

FIG. 3 is a schematic view of an embodiment of a housing in a bearing inner and outer race temperature sensing and cooling device according to the present utility model.

Reference numerals

1. A bearing body; 2. a stepped shaft; 3. a semiconductor refrigeration sheet; 4. a first gasket; 5. a heat dissipation plate; 6. a housing; 7. a stop washer; 8. a round nut; 9. improving a slip ring for current collection; 10. a second gasket; 11. a temperature sensor; 12. a slot.

Detailed Description

The technical scheme of the utility model is further described below through the attached drawings and the embodiments.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Example 1

As shown in the figure, the temperature detection and cooling device for the inner ring and the outer ring of the bearing comprises an improved current collecting slip ring 9, wherein the improved current collecting slip ring 9 can be connected with a stepped shaft 2 through threads, four semiconductor cooling plates 3 which are uniformly distributed are designed on the end face of the rotating end of the improved current collecting slip ring 9, a heat dissipation plate 5 is designed on the hot end face of the semiconductor cooling plate 3, and heat dissipation is carried out on the semiconductor cooling plates 3.

Four temperature sensors 11 are uniformly arranged on the end face of the rotating end of the improved current collecting slip ring 9, and the temperature sensors 11 contact with the inner ring of the bearing body 1 to monitor the temperature of the inner ring. When the improved collector slip ring 9 is matched with the bearing 1, the data acquisition end of the temperature sensor 11 is contacted with the inner ring of the bearing 1, and the cold end of the semiconductor refrigerating piece 3 is contacted with the inner ring of the bearing 1.

The outer ring of the stationary end of the improved current collecting slip ring 9 is provided with threads and is connected with the shell 6, and a second gasket 10 is arranged between the stationary end and the shell, so that the dust-proof and shock-absorbing effects can be achieved. Four semiconductor refrigerating sheets 3 and four temperature sensors 11 are uniformly distributed on the contact end surface of the shell 6 and the bearing 1, and a heat dissipation plate 5 is arranged at the hot end of the semiconductor refrigerating sheet 3 to dissipate heat of the semiconductor refrigerating sheet. The contact part of the shell 6 and the bearing 1 is provided with a first gasket 4, which can play a role in shock absorption and dust prevention.

After the installation, the cold end of the semiconductor refrigerating sheet 3 is contacted with the outer ring of the bearing 1, and the temperature sensor 11 is contacted with the outer ring of the bearing 1 to monitor the temperature. The temperature sensor 11 can be externally connected with equipment, analyzes the acquired data, further controls the energizing voltage of the semiconductor refrigerating sheet 3, and cools the inner ring and the outer ring of the bearing 1 to a temperature range suitable for the bearing to work.

The shell 6 is provided with a slotted hole, a circuit for improving the static end of the current collecting slip ring 9 can supply power to the semiconductor refrigerating sheet 3, the heat dissipation plate 5 and the temperature sensor 11 on the end cover through the slotted hole 12, and the temperature sensor 11 and the semiconductor refrigerating sheet 3 which are contacted with the outer ring of the bearing body 1 supply power through the rotating end of the current collecting slip ring 9.

The bearing body 1 and the stepped shaft 2 are in interference fit, so that the stability of the whole device is ensured. The outer surface of the contact part of the improved collector slip ring 9 and the stepped shaft 2 is provided with a stop washer 7, and the outer side of the stop washer 7 is matched with a round nut 8. The round nut 8 and the stop washer 7 are matched to prevent the current collecting slip ring 9 from shifting in the rotating process.

The working principle of the utility model is as follows: the external circuit can supply power to the semiconductor refrigerating sheets 3 and the temperature sensor 11 on the inner ring and the outer ring of the bearing 1 simultaneously by improving the current collecting slip ring 9, the temperature sensor 11 is directly contacted with the inner ring and the outer ring of the bearing 1, the monitoring accuracy is greatly improved, the temperature sensor 11 analyzes collected data and then controls the power supply voltage of the semiconductor refrigerating sheets 3, the temperature of the bearing 1 is reduced, and the inner ring and the outer ring of the bearing 1 are in a proper temperature range when the bearing 1 works.

Therefore, the temperature detection and cooling device for the inner ring and the outer ring of the bearing with the structure can not only remarkably improve the accuracy of temperature detection of the inner ring and the outer ring of the bearing, but also enable the bearing to be at a proper working temperature.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. The utility model provides a temperature detection of outer lane and heat sink in bearing which characterized in that: the improved current collecting slip ring is connected with the stepped shaft through threads, a semiconductor refrigerating sheet and a temperature sensor are arranged on the end face of the rotating end of the improved current collecting slip ring, threads are arranged on the outer ring of the stationary end of the improved current collecting slip ring and are connected with a shell, and the semiconductor refrigerating sheet and the temperature sensor are arranged at the contact part of the shell and the outer ring of the bearing.

2. The bearing inner and outer ring temperature detection and cooling device according to claim 1, wherein: the hot end of the semiconductor refrigerating sheet is provided with a heat dissipation plate, and the cold end of the semiconductor refrigerating sheet is contacted with the bearing inner ring.

3. The bearing inner and outer ring temperature detection and cooling device according to claim 1, wherein: the semiconductor refrigerating sheets and the temperature sensors are uniformly distributed, and the number of the semiconductor refrigerating sheets and the number of the temperature sensors are four.

4. The bearing inner and outer ring temperature detection and cooling device according to claim 1, wherein: the shell is provided with a slotted hole, and the inner ring of the shell is provided with threads.

5. The bearing inner and outer ring temperature detection and cooling device according to claim 1, wherein: the contact part of the shell and the bearing is provided with a first gasket, and a second gasket is arranged between the shell and the improved current collecting slip ring.

6. The bearing inner and outer ring temperature detection and cooling device according to claim 1, wherein: the stepped shaft is in interference fit with the bearing body.

7. The bearing inner and outer ring temperature detection and cooling device according to claim 1, wherein: the outer surface of the contact part of the improved current collecting slip ring and the stepped shaft is provided with a stop washer, and the outer side of the stop washer is provided with a round nut in a matching way.