Speed reducer shell capable of detecting working characteristics of internal bearing

Abstract

The utility model discloses a speed reducer shell capable of detecting working characteristics of an internal bearing. The speed reducer shell comprises a speed reducer shell body, a bearing position is arranged in the speed reducer shell body, a detection hole penetrating through the speed reducer shell body is formed in the bearing position, a rectangular groove is formed in the outer side of the detection hole, and a plugging cover is detachably installed in the rectangular groove in a sealed mode. And a sensor for detecting the working state of the bearing is detachably mounted in the detection hole. The speed reducer shell is provided with the detection hole penetrating through the inner side and the outer side of the speed reducer shell, after the whole speed reducer is installed, a sensor for directly detecting the working characteristics of a bearing can be installed through the cover detection hole, measurement can be truly and accurately carried out, the sensor can be sealed when measurement is not carried out, the overall service life is not affected, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a reducer housing capable of detecting working characteristics of an internal bearing. Background Art

[0002] After RV reducers are assembled, they undergo lifespan and performance testing using specialized testing equipment. Existing testing equipment doesn't penetrate the reducer's interior. Its built-in sensors can only detect external parameters related to the RV reducer's overall accuracy, efficiency, rigidity, sound, and vibration. Because installing sensors inside an RV reducer is difficult, existing equipment cannot accurately reflect the reducer's internal operating state, limiting the accuracy of the parameters obtained through existing testing methods. For example, patent application CN112146872A discloses a flexspline performance testing device for a harmonic reducer. The device comprises a fixed base plate; three vertical plates (left, center, and right) are mounted on the fixed base plate; a flexspline fixing plate is mounted on the right vertical plate, adjacent to the center vertical plate; a flexspline is fixed to the flexspline fixing plate; and a clamping mechanism is provided on the exterior of the flexspline. A transmission shaft is mounted between the center and left vertical plates; the transmission shaft is rotatably connected to the center and left vertical plates via bearings; a shifting pin is provided on the transmission shaft, which is in transmission connection with a lever shaft. The reciprocating motion of the lever shaft drives the transmission shaft to reciprocate at a set angle, and a cam mounted on one end of the transmission shaft drives the flexspline to rotate at a corresponding angle, thereby testing the flexspline's deformation. This device can comprehensively test the flexspline's performance indicators, preventing the problem of reduced flexspline life due to damage to other components of the harmonic reducer. However, this device still uses an external measurement method that does not penetrate the reducer housing, which cannot accurately reflect internal conditions. Existing reducer housings are closed after installation, making it impossible to install sensors for internal testing. Utility Model Content

[0003] The purpose of the utility model is to provide a reducer housing that can detect the working characteristics of an internal bearing. The reducer housing has detection holes running through both the inside and outside of the reducer. When the reducer is installed as a whole, a sensor that directly detects the working characteristics of the bearing can be installed through the cover detection hole, which can perform true and accurate measurements and can be sealed when not measuring, without affecting the overall service life. The utility model has strong practicality.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A reducer housing capable of detecting the working characteristics of an internal bearing comprises a reducer housing body, a bearing position being arranged inside the reducer housing body, a detection hole penetrating the reducer housing body being arranged at the bearing position, a rectangular groove being arranged on the outside of the detection hole, a sealing cover being removably and sealingly installed in the rectangular groove; and a sensor for detecting the working status of the bearing being removably installed in the detection hole.

[0006] Preferably, two bearing positions are arranged at intervals.

[0007] Preferably, a sealing groove is provided on the rectangular groove, and a sealing ring is installed in the sealing groove. When the blocking cover is installed in the rectangular groove, the sealing ring seals the connection.

[0008] Preferably, the sensor is a temperature sensor, and the temperature sensor is used to detect the temperature of the bearing when it is working.

[0009] Preferably, the sensor is a vibration sensor, and the vibration sensor is used to detect the vibration of the bearing when it is working.

[0010] Preferably, the detection hole is a threaded hole.

[0011] Preferably, the sensor is mounted on a support column, and an external thread matching the threaded hole is provided on the outer side of the support column; and a signal line of the sensor passes through the support column.

[0012] In the present invention, the detection hole provided enables the sensor to be inserted into the interior of the reducer, enabling authenticity measurement and improving measurement accuracy. The sensor can measure the temperature and vibration state of the bearing in real time during operation, and transmit the measured data for real-time analysis. The support column provided improves the stability of the sensor installation and ensures the accuracy of the measurement. The blocking cover and seal provided can seal the reducer housing when not measuring, without affecting the overall service life of the reducer. The blocking cover is located in the rectangular groove and is not protruding from the outside of the reducer housing, so it does not affect the overall external dimensions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a partial cross-sectional schematic diagram of the detection state of the utility model;

[0015] Figure 3 This is a partial cross-sectional schematic diagram of the utility model in the plugging state;

[0016] In the figure: 1. Reducer housing body; 2. Detection hole; 3. Rectangular groove; 4. Sealing cover; 5. Sealing ring; 6. Sensor; 7. Support column. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] like Figure 1 、 Figure 2 and Figure 3The reducer housing shown in the figure can detect the working characteristics of the internal bearing, including a reducer housing body 1, in which a bearing position is arranged. Specifically, the present invention discloses an RV reducer, and two bearing positions are arranged at intervals for installing two angular contact ball bearings.

[0019] A detection hole 2 is provided at the bearing position, penetrating both the inside and outside of the reducer housing body 1. A rectangular groove 3 is provided outside the detection hole 2, and a sealing cover 4 is removably installed in the rectangular groove 3 via bolts. Specifically, a sealing groove is provided in the rectangular groove 3, and a sealing ring 5 is installed in the sealing groove. When the sealing cover 4 is installed in the rectangular groove 3, the sealing ring 5 seals the connection. The sealing groove can be provided on the bottom surface of the rectangular groove 3 or on the side surface of the rectangular groove 3. When the sealing groove is provided on the side surface of the rectangular groove 3, the sealing cover 4 has a prism shape, which is convenient for installation.

[0020] A sensor 6 for detecting the working state of the bearing is detachably installed in the detection hole 2. In one embodiment, the sensor 6 is a temperature sensor, which is used to detect the temperature of the bearing when it is working. In another embodiment, the sensor 6 is a vibration sensor, which is used to detect the vibration of the bearing when it is working. Of course, the sensor 6 can also be a temperature-sensitive capacitor, which is used to detect the real-time temperature and temperature change of a local position of the bearing when it is working. The sensor 6 can also be a pressure-sensitive capacitor, which is used to measure the real-time vibration, vibration change or real-time deformation, deformation change or real-time pressure, pressure change of a local position. The temperature-sensitive capacitor and the pressure-sensitive capacitor are thin film capacitors, electrolytic capacitors or ceramic capacitors.

[0021] In a preferred embodiment, detection hole 2 is a threaded hole. Sensor 6 is mounted on a support column 7. The outer surface of support column 7 is provided with external threads that mate with the threaded hole. Sensor 6 is mounted on the end of support column 7, and the signal line of sensor 6 passes through support column 7. During actual installation, support column 7 has a through hole in its center, through which the signal line of sensor 6 passes. When not in use, a rubber plug or screw is installed in detection hole 2 to seal it.

[0022] The above embodiments are merely some descriptions of the concept and implementation of the present invention, and are not intended to limit the present invention. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A reducer housing capable of detecting the working characteristics of an internal bearing, comprising a reducer housing body (1), wherein a bearing seat is provided in the reducer housing body (1), and characterized in that: A detection hole (2) penetrating the reducer housing body (1) is provided at the bearing position, a rectangular groove (3) is provided outside the detection hole (2), a blocking cover (4) is detachably and sealedly installed in the rectangular groove (3), and a sensor (6) for detecting the working state of the bearing is detachably installed in the detection hole (2).

2. The reducer housing capable of detecting the operating characteristics of internal bearings according to claim 1, characterized in that: The bearing positions are arranged in twos at intervals.

3. The reducer housing capable of detecting the operating characteristics of internal bearings according to claim 1 or 2, characterized in that: A sealing groove is provided on the rectangular groove (3), and a sealing ring (5) is installed in the sealing groove. When the blocking cover (4) is installed in the rectangular groove (3), the sealing ring (5) seals the connection.

4. The reducer housing capable of detecting the operating characteristics of internal bearings according to claim 1, characterized in that: The sensor (6) is a temperature sensor, and the temperature sensor is used to detect the temperature of the bearing when it is working.

5. The reducer housing capable of detecting the operating characteristics of internal bearings according to claim 1, characterized in that: The sensor (6) is a vibration sensor, and the vibration sensor is used to detect the vibration of the bearing when it is working.

6. The reducer housing capable of detecting the operating characteristics of internal bearings according to claim 1 or 4, characterized in that: The detection hole (2) is a threaded hole.

7. The reducer housing capable of detecting the operating characteristics of internal bearings according to claim 6, characterized in that: The sensor (6) is mounted on a support column (7), and an external thread matching the threaded hole is provided on the outside of the support column (7); a signal line of the sensor (6) passes through the support column (7).

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