Bearing pedestal and device for bearing high-temperature environment simulation test

Abstract

A bearing pedestal for a bearing high-temperature environment simulation test, which belongs to the technical field of bearing tests. The bearing pedestal comprises a mounting portion for mounting an outer ring of a test bearing (9), wherein the bearing pedestal is provided with a flow channel therein allowing a high-temperature medium to pass through to heat the mounting portion; and a medium inlet (1) and a medium outlet (6) both in communication with the flow channel are provided in the bearing pedestal. The medium inlet (1) allows inflow of the high-temperature medium, and the medium outlet (6) allows discharge of the high-temperature medium, such that the high-temperature medium flows through the flow channel in the bearing pedestal to heat the mounting portion of the bearing pedestal, and then heat is transferred to the outer ring of the test bearing (9) to heat the outer ring of the test bearing (9), so as to simulate the high-temperature environment during operation of the outer ring of the bearing. Since the flow channel is only provided in the bearing pedestal, other irrelevant components are not heated, which does not belong to an assessment method in a physical main unit, such that the bearing pedestal has low power consumption, is energy-saving, and is cost-effective. Further provided is a device for a bearing high-temperature environment simulation test.

Description

A bearing seat and test device for high temperature environment simulation test of bearings Technical Field

[0001] The invention relates to a bearing seat and a test device for a high-temperature environment simulation test of a bearing, belonging to the technical field of bearing testing. Background Art

[0002] Bearings in different applications are exposed to different environments, requiring different environmental simulation tests to assess their ability to meet practical requirements. The outer rings of bearings in aircraft engines are exposed to high temperatures. Currently, there are no tests specifically designed to simulate outer ring temperatures. Instead, the current method involves placing the test bearing in a high-temperature environmental chamber for testing. For example, Chinese invention patent application publication number CN101419220A discloses a method and apparatus for dynamic simulation testing of bearing lubricant grease under high-temperature conditions. The method involves filling a test bearing with lubricant grease and placing it in a sealed, high-temperature chamber equipped with an electric heater. The test bearing is mounted on the cantilever end of a spindle, supported at both ends by two pivot bearings and connected to a drive motor via a coupling to rotate the test bearing. The test bearing is equipped with a loading sleeve (i.e., a bearing seat) equipped with radial and axial loading springs. As the test bearing rotates, the spring forces of the radial and axial loading springs act directly on the loading sleeve, which transmits the spring forces to the test bearing, simulating the dynamic stresses of the test bearing under high-temperature conditions.

[0003] The above-mentioned device places the cantilever end of the main shaft, the test bearing, the bearing seat, the radial loading spring, and the axial loading spring all in a high-temperature box. There are many components to be heated, but the only useful heating component is the outer ring of the test bearing. As a result, the high-temperature box consumes a lot of electrical power and is not energy-efficient. Of course, another test method is to conduct the assessment directly in the actual host, which is relatively costly. Therefore, it is urgent to provide a bearing high-temperature environment simulation test method and device that can well simulate the actual situation of the bearing in the host, consumes little power, and is low in cost.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to provide a bearing seat for high-temperature environment simulation testing of bearings, so as to solve the problems in the prior art of either arranging many components together in a high-temperature box, resulting in high power consumption and no energy saving, or conducting the test in a physical host, resulting in high costs; the purpose of the present invention is also to provide a bearing high-temperature environment simulation test device to solve the above problems.

[0006] To achieve the above objectives, the bearing seat for high temperature environment simulation test of bearings in the present invention adopts the following technical solutions:

[0007] A bearing seat for high-temperature environment simulation testing of bearings, the bearing seat comprising a mounting portion for mounting an outer ring of a test bearing, a flow channel for circulating a high-temperature medium to heat the mounting portion being provided in the bearing seat, and a medium inlet and a medium outlet respectively connected to the flow channel being provided on the bearing seat.

[0008] The beneficial effect of the above technical solution is that the present invention improves the bearing seat by providing a flow channel within the bearing seat for circulating a high-temperature medium to heat the mounting portion, and providing a medium inlet and a medium outlet on the bearing seat, each of which is connected to the flow channel. In this way, the high-temperature medium flows in through the medium inlet and out through the medium outlet, allowing the high-temperature medium to flow through the flow channel within the bearing seat, heating the mounting portion of the bearing seat. This heat is then transferred to the test bearing outer ring, heating the test bearing outer ring and simulating the high-temperature environment in which the bearing outer ring operates. Because the present invention only provides the flow channel within the bearing seat and does not heat other unrelated components, and does not involve testing in a physical host, it consumes less power, is more energy-efficient, and is low-cost.

[0009] Furthermore, the bearing seat includes a bearing seat body and an outer sleeve fixedly installed on the outside of the bearing seat body, the mounting portion is located on the bearing seat body, and the flow channel is surrounded by the bearing seat body and the outer sleeve.

[0010] The beneficial effects of the above technical solution are: facilitating the molding of the flow channel and facilitating manufacturing.

[0011] Furthermore, a groove is provided on the outer peripheral surface of the bearing seat body, and the flow channel is surrounded by the groove and the inner wall of the outer bushing.

[0012] The beneficial effect of the above technical solution is that: only the groove is set on the outer peripheral surface of the bearing seat body, and the inner wall of the outer bushing is used to form a flow channel. The structure is simple, and there is no need to perform excessive processing on the outer bushing, which is convenient for processing and manufacturing.

[0013] Furthermore, the groove is a spiral groove, the medium inlet is located at one axial end of the spiral groove, and the medium outlet is located at the other axial end of the spiral groove.

[0014] The beneficial effects of the above technical solution are: the spiral groove is easy to process and also convenient for achieving connectivity of the entire groove section; the medium inlet and medium outlet are located at both ends of the axial direction, which can fully utilize the heat of the high-temperature medium to fully heat the bearing seat.

[0015] Furthermore, the bearing seat body is stepped, and the outer periphery of the bearing seat body includes a large diameter portion and a small diameter portion, the large diameter portion includes the mounting portion and a non-mounting portion connected to the mounting portion, the medium inlet is located at a position corresponding to the mounting portion, and the medium outlet is located at a position corresponding to the non-mounting portion.

[0016] The beneficial effects of the above technical solution are that the medium inlet and the medium outlet are located at different positions, which is convenient for arrangement. At the same time, the position of the medium inlet corresponds to the installation part, which has a better heating effect on the installation part.

[0017] Furthermore, the material of the bearing seat body and the material of the outer bushing are the same.

[0018] The beneficial effect of the above technical solution is that the same thermal expansion coefficient allows the bearing seat body and the outer sleeve to deform synchronously after the temperature rises, avoiding the occurrence of gaps due to asynchronous deformation of the two, which in turn causes leakage of high-temperature media.

[0019] Furthermore, a heat insulation plate is provided on the outside of the outer sleeve for press-fitting with the radial loading mechanism.

[0020] The beneficial effect of the above technical solution is to prevent the temperature from being transferred to the radial loading mechanism and affecting the normal operation of the radial loading mechanism.

[0021] Furthermore, a temperature sensor for detecting the temperature of the outer ring of the test bearing is installed on the bearing seat.

[0022] The beneficial effect of the above technical solution is that it is convenient to know the exact temperature of the outer ring of the test bearing so as to control the heating temperature.

[0023] To achieve the above objectives, the bearing high temperature environment simulation test device in the present invention adopts the following technical solutions:

[0024] A bearing high-temperature environment simulation test device includes a main shaft for mounting the inner ring of a test bearing, a bearing seat, a radial loading mechanism arranged on the radial side of the bearing seat to apply radial force to the bearing seat, and an axial loading mechanism arranged on the axial side of the bearing seat to apply axial force to the bearing seat. The bearing seat includes a mounting portion for mounting the outer ring of the test bearing, a flow channel for circulating a high-temperature medium to heat the mounting portion is provided in the bearing seat, and a medium inlet and a medium outlet respectively connected to the flow channel are provided on the bearing seat.

[0025] The beneficial effect of the above technical solution is that the present invention improves the bearing seat by providing a flow channel within the bearing seat for circulating a high-temperature medium to heat the mounting portion, and providing a medium inlet and a medium outlet on the bearing seat, each of which is connected to the flow channel. In this way, the high-temperature medium flows in through the medium inlet and out through the medium outlet, allowing the high-temperature medium to flow through the flow channel within the bearing seat, heating the mounting portion of the bearing seat. This heat is then transferred to the test bearing outer ring, heating the test bearing outer ring and simulating the high-temperature environment in which the bearing outer ring operates. Because the present invention only provides the flow channel within the bearing seat and does not heat other unrelated components, and does not involve testing in a physical host, it consumes less power, is more energy-efficient, and is low-cost.

[0026] Furthermore, the bearing seat includes a bearing seat body and an outer sleeve fixedly installed on the outside of the bearing seat body, the mounting portion is located on the bearing seat body, and the flow channel is surrounded by the bearing seat body and the outer sleeve.

[0027] The beneficial effects of the above technical solution are: facilitating the molding of the flow channel and facilitating manufacturing.

[0028] Furthermore, a groove is provided on the outer peripheral surface of the bearing seat body, and the flow channel is surrounded by the groove and the inner wall of the outer bushing.

[0029] The beneficial effect of the above technical solution is that: only the groove is set on the outer peripheral surface of the bearing seat body, and the inner wall of the outer bushing is used to form a flow channel. The structure is simple, and there is no need to perform excessive processing on the outer bushing, which is convenient for processing and manufacturing.

[0030] Furthermore, the groove is a spiral groove, the medium inlet is located at one axial end of the spiral groove, and the medium outlet is located at the other axial end of the spiral groove.

[0031] The beneficial effects of the above technical solution are: the spiral groove is easy to process and also convenient for achieving connectivity of the entire groove section; the medium inlet and medium outlet are located at both ends of the axial direction, which can fully utilize the heat of the high-temperature medium to fully heat the bearing seat.

[0032] Furthermore, the bearing seat body is stepped, and the outer periphery of the bearing seat body includes a large diameter portion and a small diameter portion, the large diameter portion includes the mounting portion and a non-mounting portion connected to the mounting portion, the medium inlet is located at a position corresponding to the mounting portion, and the medium outlet is located at a position corresponding to the non-mounting portion.

[0033] The beneficial effects of the above technical solution are that the medium inlet and the medium outlet are located at different positions, which is convenient for arrangement. At the same time, the position of the medium inlet corresponds to the installation part, which has a better heating effect on the installation part.

[0034] Furthermore, the material of the bearing seat body and the material of the outer bushing are the same.

[0035] The beneficial effect of the above technical solution is that the same thermal expansion coefficient allows the bearing seat body and the outer sleeve to deform synchronously after the temperature rises, avoiding the occurrence of gaps due to asynchronous deformation of the two, which in turn causes leakage of high-temperature media.

[0036] Furthermore, a heat insulation plate is provided on the outside of the outer sleeve for press-fitting with the radial loading mechanism.

[0037] The beneficial effect of the above technical solution is to prevent the temperature from being transferred to the radial loading mechanism and affecting the normal operation of the radial loading mechanism.

[0038] Furthermore, a temperature sensor for detecting the temperature of the outer ring of the test bearing is installed on the bearing seat.

[0039] The beneficial effect of the above technical solution is that it is convenient to know the exact temperature of the outer ring of the test bearing so as to control the heating temperature.

[0040] Furthermore, the radial loading mechanism includes a radial force transmission and heat insulation rod, and the axial loading mechanism includes an axial force transmission and heat insulation rod. The radial force transmission and heat insulation rod and the axial force transmission and heat insulation rod are both provided with a ball head at one end for pressing the bearing seat.

[0041] The beneficial effect of the above technical solution is that the contact area of ​​the ball head is small, which can reduce the heat transfer area and reduce the impact of temperature rise on the axial loading mechanism and the radial loading mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] FIG1 is a diagram showing the use status of the high temperature environment simulation test device for bearings in the present invention.

[0043] In the figure: 1. Medium inlet; 2. Outer bushing; 3. Bearing seat body; 3-1. Groove; 4. Axial force transmission and heat insulation rod; 5. Temperature sensor; 6. Medium outlet; 7. Radial force transmission and heat insulation rod; 8. Heat insulation plate; 9. Test bearing; 10. Front fulcrum bearing; 11. Main shaft; 12. Rear fulcrum bearing; 13. Drive motor. DETAILED DESCRIPTION

[0044] The features and performance of the present invention are further described in detail below with reference to the embodiments.

[0045] Example 1 of the bearing high temperature environment simulation test device (hereinafter referred to as the test device) in the present invention:

[0046] The bearing seat of the test device of this embodiment is provided with a flow channel for the circulation of high-temperature medium, which can heat the mounting portion on which the outer ring of the test bearing is mounted, thereby transferring heat to the outer ring of the test bearing to heat the outer ring of the test bearing, thereby simulating the high-temperature environment in which the outer ring of the bearing operates. It has fewer heating components, consumes less power, is more energy-efficient, and has low cost.

[0047] As shown in Figure 1, the test apparatus includes a front fulcrum bearing 10, a main shaft 11, a rear fulcrum bearing 12, and a drive motor 13. The drive motor 13 is in transmission connection with the main shaft 11 and is used to drive the main shaft 11 to rotate. The inner rings of the test bearing 9, the inner rings of the front fulcrum bearing 10, and the inner rings of the rear fulcrum bearing 12 are all mounted on the main shaft 11. The outer rings of the front fulcrum bearing 10 and the outer rings of the rear fulcrum bearing 12 are both fixed and stationary, serving as fixed fulcrums for the entire test shaft system. The entire test shaft system structure is a cantilever beam structure, and the test bearing 9, whose outer ring ambient temperature is to be simulated, is at the cantilever end.

[0048] The test apparatus also includes a bearing seat, into which the outer ring of the test bearing 9 is mounted. The bearing seat includes a mounting portion for mounting the outer ring of the test bearing 9, and a flow channel is provided within the bearing seat for circulating a high-temperature medium to heat the mounting portion. The bearing seat is provided with a medium inlet 1 and a medium outlet 6, each connected to the flow channel. The high-temperature medium flows through the medium inlet 1 and is discharged through the medium outlet 6, allowing the high-temperature medium to flow through the flow channel within the bearing seat, heating the mounting portion of the bearing seat. This heat is then transferred to the outer ring of the test bearing 9, heating the outer ring of the test bearing 9 and simulating the high-temperature environment in which the outer ring of the test bearing 9 operates. The high-temperature medium can be high-temperature air, high-temperature water, or high-temperature oil, and different high-temperature media can be used depending on the temperature requirements of the outer ring of the test bearing 9.

[0049] Specifically, the bearing seat includes a bearing seat body 3 and an outer sleeve 2 fixedly mounted on the outside of the bearing seat body 3. In this embodiment, the outer sleeve 2 is interference-fitted onto the outside of the bearing seat body 3. The mounting portion is located on the bearing seat body 3, and the flow channel is jointly enclosed by the bearing seat body 3 and the outer sleeve 2. In this embodiment, a groove 3-1 is provided on the outer circumference of the bearing seat body 3. The flow channel is jointly enclosed by the groove 3-1 and the inner wall of the outer sleeve 2. Groove 3-1 is a spiral groove. A medium inlet 1 and a medium outlet 6 are both provided on the outer sleeve 2, with the medium inlet 1 located at one axial end of the spiral groove and the medium outlet 6 located at the other axial end of the spiral groove. High-temperature medium enters the axial end of the spiral groove through the medium inlet 1, flows along the spiral groove to the other axial end, and finally flows out of the medium outlet 6. The high-temperature medium fully exchanges heat with the bearing seat body 3, heating the mounting portion and, in turn, the outer ring of the test bearing.

[0050] As shown in Figure 1, the bearing seat body 3 is stepped, and the outer periphery of the bearing seat body 3 includes a large diameter portion and a small diameter portion. The large diameter portion includes the above-mentioned mounting portion and a non-mounting portion connected to the mounting portion. The medium inlet 1 is located at a position corresponding to the mounting portion, and the medium outlet 6 is located at a position corresponding to the non-mounting portion. In addition, the medium inlet 1 and the medium outlet 6 are located on both sides of the outer sleeve 2 (the medium outlet 6 is located on the upper side and the medium inlet 1 is located on the lower side in Figure 1). This not only facilitates the arrangement of the medium inlet 1 and the medium outlet 6, but also makes it convenient to fully utilize the heat of the high-temperature medium to fully heat the bearing seat.

[0051] In addition, a temperature sensor 5 for detecting the temperature of the outer ring of the test bearing 9 is installed on the bearing seat body 3. The temperature sensor 5 is located on the inner side of the groove 3-1, which makes it convenient to know the real-time and exact temperature of the outer ring of the test bearing 9 so as to control the heating temperature and form a closed-loop temperature control with the high-temperature medium.

[0052] In addition, the material of the bearing seat body 3 and the outer sleeve 2 are the same, and the two have the same thermal expansion coefficient, so that the bearing seat body 3 and the outer sleeve 2 can deform synchronously after the temperature rises, avoiding the occurrence of gaps due to asynchronous deformation of the two, which in turn causes leakage of high-temperature media.

[0053] The test apparatus also includes a radial loading mechanism arranged on the radial side of the bearing seat to apply radial force to the bearing seat, and an axial loading mechanism arranged on the axial side of the bearing seat to apply axial force to the bearing seat. As shown in FIG1 , the radial loading mechanism includes a radial force transmission and heat insulation rod 7 and an electric cylinder or hydraulic cylinder (not shown in the figure) that drives the radial loading mechanism. The axial loading mechanism includes an axial force transmission and heat insulation rod 4 and an electric cylinder or hydraulic cylinder (not shown in the figure) that drives the radial loading mechanism. The loading force of the electric cylinder or hydraulic cylinder is applied to the force transmission and heat insulation rod, and then to the bearing seat and the test bearing 9. Both the radial force transmission and heat insulation rod 7 and the axial force transmission and heat insulation rod 4 use corrugated rod bodies, which can increase the heat dissipation area and reduce the impact of the bearing seat temperature on the loading mechanism. At the same time, the radial force transmission and heat insulation rod 7 and the axial force transmission and heat insulation rod 4 are provided with a ball head at one end for pressing the bearing seat. The ball head has a small contact area, which can reduce the heat transfer area and reduce the impact of temperature rise on the axial loading mechanism and the radial loading mechanism. In addition, a heat insulation plate 8 is provided on the outside of the outer bushing 2 for press-fitting with the ball head of the radial force transmission heat insulation rod 7, thereby further reducing the effect of heat transfer.

[0054] The working principle of the test device in the present invention is: the driving motor 13 drives the main shaft 11 to rotate, driving the inner ring of the test bearing 9 to rotate according to the test speed requirements. The axial force transmission and heat insulation rod 4 loads the axial load on the test bearing 9, and the radial force transmission and heat insulation rod 7 loads the radial load on the test bearing 9, and the test is performed according to the test load spectrum. The temperature sensor 5 and the high-temperature control system control the temperature of the outer ring of the test bearing 9 through the medium inlet 1 and the medium outlet 6, and the test is performed according to the test temperature requirements. Since the present invention only sets the flow channel in the bearing seat, it does not heat other unrelated components, and it does not belong to the method of conducting assessments in the actual host. Therefore, it consumes less power, is more energy-efficient, and has low cost.

[0055] In other embodiments of the bearing high temperature environment simulation test device: This embodiment provides different structures of radial force transmission and heat insulation rods and axial force transmission and heat insulation rods. Different from Example 1, both the radial force transmission and heat insulation rods and the axial force transmission and heat insulation rods are in pressure contact with the bearing seat through flat end faces.

[0056] In other embodiments of the bearing high temperature environment simulation test device: This embodiment provides different composition structures of the radial loading mechanism and the axial loading mechanism. Unlike Example 1, the telescopic rod of the electric cylinder or the hydraulic cylinder is directly used as the force transmission rod to press fit with the bearing seat.

[0057] In other embodiments of the bearing high temperature environment simulation test device: This embodiment provides a different component structure of the bearing seat. Unlike Example 1, no temperature sensor is installed on the bearing seat. At this time, the medium temperature at the medium inlet and medium outlet can be monitored separately to control the heating temperature of the bearing seat.

[0058] In other embodiments of the bearing high temperature environment simulation test device: the material of the bearing seat body and the material of the outer sleeve can be different, and the two are fixed by welding. Since the welding method is firm, it can withstand the asynchronous deformation of the two.

[0059] In other embodiments of the bearing high temperature environment simulation test device: this embodiment provides different arrangements of the medium inlet and the medium outlet. Different from embodiment 1, the medium outlet is also located at a position corresponding to the mounting portion.

[0060] In other embodiments of the bearing high temperature environment simulation test device: This embodiment provides a different structure of the bearing seat body. Unlike Example 1, the outer periphery of the bearing seat body is of equal diameter, and the setting positions of the medium inlet and the medium outlet both correspond to the outer periphery of the bearing seat body.

[0061] In other embodiments of the bearing high temperature environment simulation test device: This embodiment provides different forms of grooves. Unlike Example 1, the grooves are not spiral grooves, but include multiple annular grooves arranged at intervals along the axial direction, and adjacent annular grooves are connected.

[0062] In other embodiments of the bearing high-temperature environment simulation test device: This embodiment provides a different method for forming the flow channel. Unlike Example 1, grooves are provided on both the outer circumference of the bearing seat body and the inner wall of the outer bushing. After the two are fixed, the grooves align to form the flow channel. Of course, in other embodiments, grooves can be provided only on the inner wall of the outer bushing, and the grooves and the outer circumference of the bearing seat body can jointly form the flow channel.

[0063] In other embodiments of the bearing high-temperature environment simulation test device: This embodiment provides a different structural composition of the bearing seat. Unlike Example 1, the bearing seat includes a body, which is provided with an annular groove with an opening toward one axial side. The bearing seat also includes a sealing plate fixed to the axial end of the body to cover the annular groove. The annular groove and the sealing plate together form a flow channel, which is annular in this case. Of course, in other embodiments, the bearing seat can also be a one-piece bearing seat, for example, the bearing seat is formed using 3D printing technology, in which case the flow channel is directly printed.

[0064] The embodiment of the bearing seat for high temperature environment simulation test of bearings in the present invention is as follows: the specific structure of the bearing seat for high temperature environment simulation test of bearings is the same as the bearing seat in the above-mentioned embodiment of the high temperature environment simulation test device of bearings, and will not be repeated here.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A bearing seat for a high temperature environment simulation test of a bearing, the bearing seat comprising a mounting portion for mounting an outer ring of a test bearing (9), characterized in that: A flow channel for circulating a high-temperature medium to heat the mounting portion is arranged in the bearing seat, and a medium inlet (1) and a medium outlet (6) respectively connected to the flow channel are arranged on the bearing seat.

2. The bearing seat for high temperature environment simulation test of bearing according to claim 1, characterized in that: The bearing seat comprises a bearing seat body (3) and an outer sleeve (2) fixedly mounted on the outside of the bearing seat body (3); the mounting portion is located on the bearing seat body (3); and the flow channel is surrounded by the bearing seat body (3) and the outer sleeve (2).

3. The bearing seat for high temperature environment simulation test of bearing according to claim 2, characterized in that: A groove (3-1) is provided on the outer peripheral surface of the bearing seat body (3), and the flow channel is surrounded by the groove (3-1) and the inner wall of the outer bushing (2).

4. The bearing seat for high temperature environment simulation test of bearings according to claim 3, characterized in that: The groove (3-1) is a spiral groove, the medium inlet (1) is located at one axial end of the spiral groove, and the medium outlet (6) is located at the other axial end of the spiral groove.

5. The bearing seat for high temperature environment simulation test of a bearing according to any one of claims 1 to 4, characterized in that: The bearing seat body (3) is stepped, and the outer periphery of the bearing seat body (3) includes a large diameter portion and a small diameter portion, the large diameter portion includes the mounting portion and a non-mounting portion connected to the mounting portion, the medium inlet (1) is located at a position corresponding to the mounting portion, and the medium outlet (6) is located at a position corresponding to the non-mounting portion.

6. The bearing seat for high temperature environment simulation test of a bearing according to any one of claims 2 to 4, characterized in that: The material of the bearing seat body (3) is the same as that of the outer bushing (2).

7. The bearing seat for high temperature environment simulation test of a bearing according to any one of claims 2 to 4, characterized in that: A heat insulation plate (8) for press-fitting with the radial loading mechanism is arranged outside the outer bushing (2).

8. The bearing seat for high temperature environment simulation test of a bearing according to any one of claims 1 to 4, characterized in that: A temperature sensor (5) for detecting the temperature of the outer ring of the test bearing (9) is installed on the bearing seat.

9. A bearing high temperature environment simulation test device, comprising a main shaft (11) for mounting the inner ring of a test bearing (9), a bearing seat, a radial loading mechanism arranged on a radial side of the bearing seat to apply a radial force to the bearing seat, and an axial loading mechanism arranged on an axial side of the bearing seat to apply an axial force to the bearing seat, characterized in that: The bearing seat is a bearing seat for a high temperature environment simulation test of a bearing as described in any one of claims 1 to 8.

10. The bearing high temperature environment simulation test device according to claim 9, characterized in that: The radial loading mechanism comprises a radial force transmission and heat insulation rod (7), and the axial loading mechanism comprises an axial force transmission and heat insulation rod (4). The radial force transmission and heat insulation rod (7) and the axial force transmission and heat insulation rod (4) are both provided with a ball head at one end for pressing the bearing seat.

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