Bearing high-temperature dynamic waterproof test device

Abstract

The invention provides a bearing high-temperature dynamic waterproof test device, and relates to the technical field of bearing waterproof detection devices, the bearing high-temperature dynamic waterproof test device comprises a support device and a test device, a test cavity is arranged in the support device, and a high-temperature colored fluid medium is accommodated in the test cavity; the test device comprises a rotating shaft, a fixing mechanism and a driving mechanism, the rotating shaft is rotatably arranged in the test cavity and is in driving connection with the driving mechanism, the rotating shaft is used for mounting the to-be-detected bearing, and the fixing mechanism is arranged in the test cavity and can fix an outer ring of the to-be-detected bearing; through mutual cooperation of the rotating shaft located in the high-temperature colored fluid medium and the fixing mechanism capable of fixing the outer ring of the to-be-detected bearing, the dynamic operation process of the bearing can be effectively simulated, so that the high-temperature dynamic waterproof test of the bearing is realized, and whether the colored fluid medium exists in the to-be-detected bearing after dynamic simulation is observed. The bearing waterproof performance detection device not only has a remarkable bearing waterproof performance detection effect, but also is convenient in detection operation.

Description

Technical Field

[0001] The invention relates to the technical field of bearing waterproof detection devices, and in particular to a bearing high-temperature dynamic waterproof test device. Background Art

[0002] When the existing motor bearings are running in a high temperature environment, if they encounter rain, the waterproof performance will fail easily, causing water ingress and damage to the motor. Therefore, the waterproof performance of the motor bearings needs to be strictly controlled. The existing methods for deep groove ball bearing waterproof testing mainly include:

[0003] (1) Static immersion test

[0004] The deep groove ball bearing is immersed in water for a certain period of time, and then checked to see if water has entered the bearing to evaluate the waterproof performance of the bearing. This method cannot verify whether the bearing is waterproof when in working condition.

[0005] (2) Dynamic water spray test

[0006] During the operation of the bearing, water with a certain pressure and flow rate is sprayed on the bearing through a nozzle to check whether water has entered the bearing to evaluate the waterproof performance of the bearing. This method fails to simulate the situation where water enters the motor bearing due to heat during operation.

[0007] (3) Pressure difference test

[0008] The bearing is installed in a sealed test device, and a certain air pressure or hydraulic pressure is applied on one side of the bearing to form a pressure difference between the inside and outside of the bearing. The sealing performance and waterproof ability of the bearing are judged by detecting whether there is gas or liquid leaking through the sealing part of the bearing to the other side. This method fails to simulate the situation where water enters the motor bearing due to heat during operation.

[0009] (4) Tracer gas detection method

[0010] Use a specific tracer gas, such as helium, to fill the sealed space where the bearing is located, and then use a gas detection instrument on the other side to detect whether there is tracer gas leakage, so as to judge the sealing performance and waterproof effect of the bearing. This method cannot simulate the situation where the heat generated by the motor bearing during operation causes water to enter.

[0011] (5) Dye penetrant testing method

[0012] Apply or inject a liquid containing a color dye to one side of the bearing. After a period of time, observe whether the dye penetrates the other side of the bearing. If dye appears, it indicates that there is a leakage channel in the bearing and the waterproof performance is poor. This method cannot simulate the situation where water enters the motor bearing due to heat during operation.

[0013] The existing detection methods are unable to realize high-temperature dynamic waterproof detection of motor bearings during operation, and the detection effect is poor. Summary of the invention

[0014] The purpose of the present invention is to provide a bearing high-temperature dynamic waterproof test device to solve the above-mentioned technical problems existing in the prior art; the preferred technical scheme among the many technical schemes provided by the present invention can produce many technical effects; see the following description for details.

[0015] To achieve the above object, the present invention provides the following technical solutions:

[0016] The present invention provides a bearing high-temperature dynamic waterproof test device, comprising a supporting device and a testing device, wherein: a test cavity is arranged in the supporting device, and a high-temperature colored fluid medium for bearing waterproof testing is contained in the test cavity; the testing device comprises a rotating shaft, a fixing mechanism and a driving mechanism, the rotating shaft can be rotatably arranged in the test cavity, and is drivingly connected to the driving mechanism, the rotating shaft is used for the installation of the bearing to be tested, the fixing mechanism is arranged in the test cavity, and can fix the outer ring of the bearing to be tested; the driving mechanism can drive the rotating shaft to rotate, so as to drive the inner ring of the bearing to be tested to rotate relative to the outer ring of the bearing to be tested.

[0017] Preferably, the driving mechanism comprises a power assembly and a belt transmission assembly, and the output end of the power assembly is drivingly connected to the rotating shaft through the belt transmission assembly.

[0018] Preferably, the fixed sleeve on the rotating shaft is provided with a spacer sleeve, the number of the spacer sleeves is set to be multiple, all the spacer sleeves are evenly distributed along the axial direction of the rotating shaft, and the section on the rotating shaft located between two adjacent spacer sleeves forms an installation position for installing the bearing to be tested.

[0019] Preferably, the belt drive assembly includes an output wheel, a transmission belt, a transmission wheel and a tensioning mechanism, wherein: the output wheel is connected to the output end of the power assembly; the number of the transmission wheels and the rotating shafts are set to multiple, the transmission wheel is fixedly sleeved on the corresponding rotating shaft, and all the transmission wheels are connected to the output wheel through the transmission belt; all the rotating shafts have multiple different size specifications, which are suitable for the corresponding models of the bearings to be tested; the tensioning mechanism is arranged on the supporting device and abuts against the transmission belt, and is used to adjust the tension of the transmission belt.

[0020] Preferably, the fixing mechanism comprises a mounting assembly and a clamping assembly, wherein: the mounting assembly is arranged on the supporting device; the clamping assembly is arranged on the mounting assembly and can clamp the outer ring of the bearing to be inspected.

[0021] Preferably, the clamping assembly includes a guide member, a clamping member and an elastic member, wherein: the guide member is arranged on the mounting assembly along the radial sliding direction of the rotating shaft; the clamping member is fixedly arranged at the end of the guide member close to the rotating shaft, and moves synchronously with the guide member, and a positioning groove is provided on the clamping member, and the positioning groove is adapted to the outer ring of the bearing to be detected; the elastic member is sleeved on the guide member, and its two ends are respectively abutted against the mounting assembly and the clamping member, and when the clamping member presses the outer ring of the bearing to be detected, the elastic member is in a deformed state, and the clamping direction of the clamping member on the bearing to be detected is perpendicular to the rotating shaft.

[0022] Preferably, a liquid storage chamber is provided in the support device, and the liquid storage chamber is communicated with the test chamber; the bearing high temperature dynamic waterproof test device includes a heating device, which is arranged in the liquid storage chamber and can heat the colored fluid medium in the liquid storage chamber; the heating device includes at least one heating rod, and the heating rod is arranged in the liquid storage chamber.

[0023] Preferably, the bearing high-temperature dynamic waterproof testing device comprises an air pressure balancing device, and the liquid storage chamber and / or the testing chamber are connected to the air pressure balancing device.

[0024] Preferably, the liquid storage chamber is connected to a liquid injection pipe; the test chamber is connected to a liquid discharge pipe; and a water temperature alarm device and a water level monitoring device are provided in the test chamber.

[0025] Preferably, the supporting device comprises a body, and a moving wheel mechanism is provided at the bottom of the body; the bearing high temperature dynamic test device also comprises a control instrument, and the test device and the heating device are both electrically connected to the control instrument.

[0026] The bearing high temperature dynamic waterproof test device provided by the present invention has at least the following beneficial effects:

[0027] The bearing high temperature dynamic waterproof test device comprises a supporting device and a testing device. A testing cavity is arranged in the supporting device to provide space for the dynamic test of the bearing. The testing device is used for the dynamic waterproof test of the bearing.

[0028] The test chamber contains a high-temperature colored fluid medium. The test device includes a rotating shaft, a fixing mechanism and a driving mechanism. The rotating shaft can be rotatably set in the test chamber and is connected to the driving mechanism. The fixing mechanism is set in the test chamber. During the test, the bearing to be tested is installed on the rotating shaft, the fixing mechanism fixes the outer ring of the bearing to be tested, and the driving mechanism drives the rotating shaft to rotate, and the inner ring of the bearing to be tested rotates synchronously, thereby realizing the simulation of the dynamic operation process of the bearing. After the dynamic simulation is completed, the bearing to be tested is taken out, and by observing whether there is a colored liquid medium inside the bearing to be tested, it is determined whether the bearing to be tested is leaking.

[0029] The present invention can effectively simulate the dynamic operation process of the bearing by cooperating with a rotating shaft located in a high-temperature colored fluid medium and a fixing mechanism capable of fixing the outer ring of the bearing to be tested, thereby realizing a high-temperature dynamic waterproof test of the bearing. By observing whether there is a colored fluid medium inside the bearing to be tested after the dynamic simulation, the waterproof performance of the bearing can be determined. Not only is the bearing waterproof performance detection effect significant, but the detection operation is also convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 and Figure 2 It is a structural schematic diagram of the main viewing angle of the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of the internal structure of the present invention from a top view;

[0033] Figure 4 It is an enlarged view of the A part of the present invention;

[0034] Figure 5 It is a schematic flow chart of the detection method of the present invention;

[0035] Figure 6 It is a schematic flow chart of the determination method using the detection method of the present invention.

[0036] Reference numerals

[0037] 1. Support device; 11. Machine body; 111. Test chamber; 112. Liquid storage chamber; 12. Moving wheel mechanism; 13. Liquid injection pipe; 14. Liquid discharge pipe; 2. Test device; 21. Rotating shaft; 22. Fixing mechanism; 221. Mounting assembly; 222. Pressing assembly; 2221. Guide member; 2222. Elastic member; 2223. Pressing member; 23. Driving mechanism; 231. Output wheel; 232. Transmission belt; 233. Transmission wheel; 234. Tensioning mechanism; 3. Heating device; 31. Heating rod; 4. Air pressure balance device; 41. Air pressure balance pipe; 5. Control instrument. DETAILED DESCRIPTION

[0038] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0039] Embodiment 1:

[0040] The present invention provides a bearing high temperature dynamic waterproof test device, referring to Figures 1 to 4 As shown, the bearing high temperature dynamic waterproof testing device includes a supporting device 1 and a testing device 2.

[0041] A test chamber 111 is provided in the support device 1, and the test chamber 111 contains a high-temperature colored fluid medium for bearing waterproof testing. The high-temperature colored liquid medium can be high-temperature tap water or muddy water with dye added. The test device 2 includes a rotating shaft 21, a fixing mechanism 22 and a driving mechanism 23. The rotating shaft 21 can be rotatably set in the test chamber 111 and is connected to the driving mechanism 23. The rotating shaft 21 is used for the installation of the bearing to be tested. The fixing mechanism 22 is set in the test chamber 111 and can fix the outer ring of the bearing to be tested.

[0042] refer to Figure 5 and Figure 6 As shown, during the inspection, the bearing to be inspected is mounted on the rotating shaft 21, and the outer ring of the bearing to be inspected is fixed by the fixing mechanism 22; the high-temperature colored fluid medium is injected into the test cavity 111, so that the rotating shaft 21 and the bearing to be inspected are completely immersed in the high-temperature colored fluid medium; then, the driving mechanism 23 is started to drive the rotating shaft 21 to rotate, and the rotating shaft 21 drives the inner ring of the bearing to be inspected to rotate relative to its outer ring; thereby, the simulation of the dynamic operation process of the bearing is realized, and after the simulation is completed, the bearing to be inspected is removed from the rotating shaft 21 and taken out.

[0043] Since the inside of the bearing contains yellow or white grease, which can absorb colored fluid medium, therefore, by observing whether there is a phenomenon of colored fluid medium penetration in the bearing to be tested, it can be determined whether the bearing to be tested is leaking.

[0044] Specifically, the determination method is as follows:

[0045] If the colored fluid medium is directly observed in the bearing to be tested, it is determined that the bearing to be tested is leaking;

[0046] If the colored fluid medium is not directly observed in the bearing to be tested, the sealing ring of the bearing to be tested is disassembled and a secondary determination is performed.

[0047] The secondary determination includes:

[0048] A second observation is made to see whether there is oil fluid medium in the bearing to be inspected after the sealing ring is removed;

[0049] If the colored fluid medium is observed to exist in the bearing to be tested for the second time, it is determined that the bearing to be tested is leaking;

[0050] If it is observed for the second time that there is no colored fluid medium in the bearing to be tested, the bearing to be tested is determined to be qualified.

[0051] The two-judgment method is adopted to further ensure the accuracy of the judgment results and reduce misjudgments.

[0052] The present invention can effectively simulate the dynamic operation process of the bearing by cooperating with the test chamber 111 having a high-temperature colored fluid medium and the test device 2. By observing whether there is a colored fluid medium penetration phenomenon in the bearing, the waterproof performance of the bearing can be judged intuitively and accurately. Not only is the bearing waterproof detection effect significant, but the detection operation is also convenient.

[0053] Embodiment 2:

[0054] Example 2 is based on Example 1:

[0055] like Figures 1 to 5 As shown, the driving mechanism 23 includes a power assembly and a belt transmission assembly, and the output end of the power assembly is drivingly connected to the rotating shaft 21 through the belt transmission assembly.

[0056] An installation cavity is provided inside the support device 1, and the power assembly and the belt transmission assembly are both arranged in the installation cavity. The driving end of the rotating shaft 21 is inserted into the installation cavity and is drivingly connected to the belt transmission assembly.

[0057] Optionally, the power assembly adopts an electric power assembly, and the belt drive assembly can also be replaced by other transmission structures, such as chain drive or gear drive.

[0058] As an optional embodiment, a fixed sleeve on the rotating shaft 21 is provided with a spacer sleeve, and the number of the spacer sleeves is set to be multiple, all of the spacer sleeves are evenly distributed along the axial direction of the rotating shaft 21, and the section between two adjacent spacer sleeves on the rotating shaft 21 forms an installation position, which is used to install the bearing to be tested.

[0059] The mounting position formed by the spacer sleeve can effectively isolate the bearings to be detected, avoid mutual interference between the bearings to be detected, and ensure the accuracy of detection.

[0060] As an optional implementation, the belt transmission assembly includes an output wheel 231 , a transmission belt 232 , a transmission wheel 233 and a tensioning mechanism 234 .

[0061] The output wheel 231 is connected to the output end of the power assembly; the number of transmission wheels 233 and the rotating shaft 21 is set to be multiple, the transmission wheel 233 is fixedly sleeved on the end of the corresponding rotating shaft 21, and all transmission wheels 233 are connected to the output wheel 231 through a transmission belt 232.

[0062] Preferably, a test device 2 has a power assembly and two rotating shafts 21, and the power assembly drives the rotating shaft 21 to rotate, that is, a belt drive assembly includes an output wheel 231, a transmission belt 232 and two transmission wheels 233; two groups of test devices 2 are arranged inside the test chamber 111.

[0063] All rotating shafts 21 have a plurality of different sizes and specifications, which are adapted to the corresponding types of the bearings to be tested. In this way, the detection of bearings to be tested of different types can be realized, and the application range is wide;

[0064] The tensioning mechanism 234 is arranged on the supporting device 1, and includes a tensioning wheel and a tensioning assembly. The tensioning wheel abuts against the transmission belt 232. The tensioning assembly adjusts the tension of the corresponding transmission belt 232 by adjusting the abutment force of the tensioning wheel on the transmission belt 232. The tensioning assembly can adopt a swing arm structure, a screw structure, etc., and can also adopt a telescopic assembly such as an oil cylinder or a pneumatic cylinder.

[0065] As an optional implementation, the fixing mechanism 22 includes a mounting assembly 221 and a pressing assembly 222 .

[0066] The mounting assembly 221 is arranged on the supporting device 1 ; the pressing assembly 222 is arranged on the mounting assembly 221 and can press the outer ring of the bearing to be tested.

[0067] Specifically, each installation position is correspondingly provided with a fixing mechanism 22, and the fixing mechanism 22 adopts a pressing method to fix the outer ring, which has a simple operation and a significant fixing effect.

[0068] As an optional implementation, the clamping assembly 222 includes a guide member 2221 , a clamping member 2223 and an elastic member 2222 .

[0069] The guide member 2221 is configured as a guide rod, which is slidably disposed on the mounting assembly 221 along the radial direction of the rotating shaft 21 .

[0070] The clamping member 2223 is configured as a clamping plate, which is fixedly disposed at the end of the guide member 2221 close to the rotating shaft 21 and moves synchronously with the guide member 2221. A positioning groove is provided on the side of the clamping member 2223 facing the rotating shaft 21, and the positioning groove is a circular arc groove, which is adapted to the outer ring of the bearing to be detected.

[0071] The elastic member 2222 is configured as a spring, which is sleeved on the guide member 2221, and its two ends are respectively against the mounting assembly 221 and the clamping member 2223. When the clamping member 2223 presses the outer ring of the bearing to be detected, the elastic member 2222 is in a deformed state, and the clamping direction of the outer ring of the bearing to be detected by the clamping member 2223 is perpendicular to the rotating shaft 21. The setting of the elastic member 2222, on the one hand, can provide a clamping force for clamping the outer ring of the bearing to be detected, and on the other hand, has a certain compression amount, which is suitable for bearings of different specifications.

[0072] The bearing to be tested, the spacer sleeve and the rotating shaft 21 are coaxial, and the end face of the spacer sleeve is perpendicular to the pressing direction of the outer ring of the bearing to be tested by the pressing piece 2223, that is, the pressing direction is the radial direction of the bearing to be tested. In this way, during the testing process, the bearing to be tested is not affected by lateral force, which can effectively avoid the problem of misalignment and deformation of the inner and outer rings due to the lateral force on the outer ring, thereby ensuring the accuracy of the testing structure.

[0073] As an optional implementation, a liquid storage chamber 112 is provided in the supporting device 1 , and the liquid storage chamber 112 is connected to the test chamber 111 through a pipeline, and an on-off switch is provided on the pipeline.

[0074] The bearing high temperature dynamic waterproof test device includes a heating device 3, which is arranged in the liquid storage chamber 112 and can heat the colored fluid medium in the liquid storage chamber 112. Specifically, the heating device 3 heats the colored fluid medium to a high temperature colored fluid medium of 90 to 95°C.

[0075] During the actual detection process, tap water or silt water is injected into the liquid storage chamber 112, and dye is added to the tap water or silt water, and then it is heated to 90-95°C by the heating device 3 to obtain high-temperature tap water or silt water with dye added to form the high-temperature colored fluid medium. Thereafter, the high-temperature colored fluid medium can be introduced into the test chamber 111 by turning on the on-off switch.

[0076] As an optional embodiment, the heating device 3 includes at least one heating rod 31 , and the heating rod 31 is disposed in the liquid storage chamber 112 .

[0077] Preferably, the number of heating rods 31 is set to be multiple, so that the heating efficiency can be improved.

[0078] As an optional implementation, the bearing high temperature dynamic waterproof test device includes an air pressure balance device 4 , and the liquid storage chamber 112 and / or the test chamber 111 are connected to the air pressure balance device 4 .

[0079] Specifically, the air pressure balancing device 4 includes an air pressure balancing pipe 41, which is arranged on the supporting device 1 and located above the test chamber 111. The air pressure balancing pipe 41 is connected to the test chamber 111, which can effectively ensure that the air pressure inside and outside the equipment is consistent and the internal and external pressures are balanced.

[0080] As an optional embodiment, the liquid storage chamber 112 is connected to an injection tube 13, which is used to replenish the fluid medium and is provided with a valve. The bottom side of the test chamber 111 is connected to a discharge tube 14, which is used to discharge the fluid medium and is provided with a valve.

[0081] A water temperature alarm device is provided in the test chamber 111 , and the water temperature alarm device can ensure that the water temperature in the test chamber 111 is constant.

[0082] A water level monitoring device is provided in the test chamber 111. During use, when the water level is lower than the minimum water level, the on-off switch is opened, and the air pressure balance pipe replenishes high-temperature colored fluid medium into the test chamber 111. The setting of the water level monitoring device can keep the water level within a constant range.

[0083] As an optional embodiment, the support device 1 includes a body 11, which is a sealed body that can prevent the medium from volatilizing during the high-temperature dynamic waterproof test of the bearing, thereby ensuring the normal operation of other equipment in the equipment room.

[0084] A moving wheel mechanism 12 is provided at the bottom of the body 11, and the supporting device 1 forms a movable supporting device, which is easy to move.

[0085] The bearing high temperature dynamic test device also includes a control instrument 5. The test device 2 and the heating device 3 are both electrically connected to the control instrument 5. The control instrument 5 is provided with a control panel to facilitate the control of the entire device.

[0086] The bearing to be tested described in the present invention is mainly for deep groove ball bearings.

[0087] Compared with the existing equipment, the present invention makes up for the inability of the existing technology to detect the high-temperature dynamic waterproofness of the bearing, can promote the improvement of the waterproof performance of the existing bearing, and increase the life of the bearing and the bearing-loading components.

[0088] In the description of the present application, it should be understood that the terms "upper", "lower", "inside", "outside", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0089] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0090] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0091] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A bearing high temperature dynamic waterproof test device, characterized in that: It includes a supporting device and a test device, wherein: The support device is provided with a test cavity, and the test cavity contains a high-temperature colored fluid medium for bearing waterproof testing; the test device comprises a rotating shaft, a fixing mechanism and a driving mechanism, the rotating shaft is rotatably arranged in the test cavity and is drivingly connected to the driving mechanism, the rotating shaft is used for installing the bearing to be tested, and the fixing mechanism is arranged in the test cavity and can fix the outer ring of the bearing to be tested; The driving mechanism can drive the rotating shaft to rotate, so as to drive the inner ring of the bearing to be detected to rotate relative to the outer ring of the bearing to be detected.

2. The bearing high temperature dynamic waterproof test device according to claim 1, characterized in that: The driving mechanism comprises a power assembly and a belt transmission assembly, and the output end of the power assembly is drivingly connected to the rotating shaft through the belt transmission assembly.

3. The bearing high temperature dynamic waterproof test device according to claim 1, characterized in that: The fixed sleeve on the rotating shaft is provided with a spacer sleeve, the number of the spacer sleeves is set to be multiple, all the spacer sleeves are evenly distributed along the axial direction of the rotating shaft, and the section on the rotating shaft located between two adjacent spacer sleeves forms an installation position for installing the bearing to be tested.

4. The bearing high temperature dynamic waterproof test device according to claim 2, characterized in that: The belt drive assembly comprises an output wheel, a transmission belt, a transmission wheel and a tensioning mechanism, wherein: The output wheel is connected to the output end of the power assembly; The number of the transmission wheels and the rotating shafts are both set to be multiple, the transmission wheels are fixedly sleeved on the corresponding rotating shafts, and all the transmission wheels are connected to the output wheel through the transmission belts; All the rotating shafts have a plurality of different sizes and specifications, adapted to the corresponding models of the bearings to be tested; The tensioning mechanism is arranged on the supporting device and abuts against the transmission belt, and is used for adjusting the tension of the transmission belt.

5. The bearing high temperature dynamic waterproof test device according to claim 1, characterized in that: The fixing mechanism comprises a mounting assembly and a pressing assembly, wherein: The mounting assembly is arranged on the supporting device; The clamping assembly is arranged on the mounting assembly and can clamp the outer ring of the bearing to be tested.

6. The bearing high temperature dynamic waterproof test device according to claim 5, characterized in that: The clamping assembly comprises a guide member, a clamping member and an elastic member, wherein: The guide member is slidably arranged on the mounting assembly along the radial direction of the rotating shaft; The pressing member is fixedly arranged at the end of the guide member close to the rotating shaft and moves synchronously with the guide member. A positioning groove is arranged on the pressing member, and the positioning groove is adapted to the outer ring of the bearing to be detected. The elastic member is sleeved on the guide member, and its two ends are respectively against the mounting assembly and the pressing member. When the pressing member presses the outer ring of the bearing to be tested, the elastic member is in a deformed state, and the pressing direction of the pressing member on the bearing to be tested is perpendicular to the rotating shaft.

7. The bearing high temperature dynamic waterproof test device according to claim 1, characterized in that: A liquid storage cavity is provided in the supporting device, and the liquid storage cavity is communicated with the test cavity; The bearing high temperature dynamic waterproof test device comprises a heating device, which is arranged in the liquid storage cavity and can heat the colored fluid medium in the liquid storage cavity; The heating device comprises at least one heating rod, and the heating rod is arranged in the liquid storage cavity.

8. The bearing high temperature dynamic waterproof test device according to claim 7, characterized in that: The bearing high-temperature dynamic waterproof test device comprises an air pressure balance device, and the liquid storage chamber and / or the test chamber are connected to the air pressure balance device.

9. The bearing high temperature dynamic waterproof test device according to claim 7, characterized in that: The liquid storage cavity is connected to a liquid injection pipe; The test chamber is connected with a drain pipe; A water temperature alarm device and a water level monitoring device are arranged in the test chamber.

10. The bearing high temperature dynamic waterproof test device according to claim 7, characterized in that: The supporting device comprises a body, and a moving wheel mechanism is arranged at the bottom of the body; The bearing high temperature dynamic test device also includes a control instrument, and the test device and the heating device are both electrically connected to the control instrument.

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