Bearing testing equipment

Abstract

The utility model discloses a bearing test device. The bearing test device comprises a mounting rack; the radial loading mechanism comprises a mounting module, a first driving module and a bearing adjusting module, the bearing adjusting module is slidably mounted on the mounting module, the first driving module is suitable for pushing the bearing adjusting module to move in the radial direction of the bearing to be tested, and the bearing adjusting module is provided with a bearing mounting part; the reciprocating motion mechanism comprises a second driving module and a reciprocating motion module, the reciprocating motion module comprises a reciprocating motion shaft, the reciprocating motion shaft is suitable for penetrating through the bearing to be detected in the axial direction, and the second driving module is used for driving the reciprocating motion shaft to reciprocate in the axial direction; the angle of the bearing mounting piece relative to the movement direction of the bearing adjusting module is adjustable. The bearing test equipment can simulate the limit installation scene and the real motion state of the bearing to be tested so as to effectively analyze the use performance of the bearing to be tested and improve the test precision of the bearing to be tested.

Description

Technical Field

[0001] The utility model relates to the technical field of part testing, in particular to a bearing testing device. Background Art

[0002] The oil-free self-lubricating bearing is composed of a metal base material and a non-metallic material on the inner surface. Due to its characteristics such as strong load-bearing capacity, small friction coefficient, and long service life, it is widely used in industries such as textile machinery, instrument machine tools, valves, and automobiles. In the market, the structures and types of self-lubricating bearings are numerous. Due to the different structural characteristics of the bearings, the characteristics of the bearings are studied through test experiments. In the existing bearing endurance test methods, the angle between the test bearing and the guide shaft is not adjustable, and the actual use limit installation conditions cannot be simulated, resulting in limitations in testing, inability to effectively analyze the service performance of the bearings, and room for improvement. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a bearing testing device, which can simulate the limit installation scenario and the real motion state of the bearing to be tested, so as to more accurately analyze the service performance of the bearing to be tested during testing, improve the testing accuracy of the bearing testing device, and has a perfect structure and good use effect.

[0004] According to the bearing testing device of the embodiment of the utility model, it includes: an installation frame; a radial loading mechanism, the radial loading mechanism includes an installation module, a first driving module and a bearing adjustment module, the installation module is installed on the installation frame, the bearing adjustment module is slidably installed on the installation module, the first driving module is suitable for pushing the bearing adjustment module to move along the radial direction of the bearing to be tested, and the bearing adjustment module is provided with a bearing installation part for installing the bearing to be tested; a reciprocating motion mechanism, the reciprocating motion mechanism is installed on the installation frame, the reciprocating motion mechanism includes a second driving module and a reciprocating motion module, the reciprocating motion module includes a reciprocating motion shaft, the reciprocating motion shaft is suitable for axially passing through the bearing to be tested, and the second driving module is connected to the reciprocating motion module and is used to drive the reciprocating motion shaft to reciprocate axially; wherein, the angle of the bearing installation part relative to the moving direction of the bearing adjustment module is adjustable.

[0005] According to the bearing testing device of the embodiment of the utility model, by setting the installation angle between the bearing to be tested and the reciprocating motion shaft to be adjustable, and driving the reciprocating motion shaft to reciprocate linearly relative to the bearing to be tested through the first driving module, and driving the bearing adjustment module to apply different magnitudes of radial forces to the bearing to be tested through the second driving module, the limit installation scenario and the real motion state of the bearing to be tested can be simulated, so as to more accurately analyze the service performance of the bearing to be tested during testing, improve the testing accuracy of the bearing testing device, and has a perfect structure and good use effect.

[0006] According to the bearing testing device of some embodiments of the present utility model, the first driving module includes a first driving component, a driving lead screw, and a thrust component. The thrust component is slidably mounted on the mounting module. The first driving component is used to drive the driving lead screw to rotate. The driving lead screw is in threaded cooperation with the thrust component and is adapted to drive the thrust component to approach or move away from the bearing adjustment module. The thrust component is adapted to push the bearing adjustment module to move along the radial direction of the bearing to be tested.

[0007] According to the bearing testing device of some embodiments of the present utility model, the thrust component and / or the bearing adjustment module is provided with a first pressure detection element. The thrust component and the bearing adjustment module are in pressing contact at the first pressure detection element.

[0008] According to the bearing testing device of some embodiments of the present utility model, the first driving component includes a first driving member, a speed reduction structure, and a coupling. The output end of the first driving member is connected to the speed reduction structure. The output end of the speed reduction structure is connected to the driving lead screw through the coupling.

[0009] According to the bearing testing device of some embodiments of the present utility model, the bearing adjustment module includes a first mounting seat. The first mounting seat is slidably mounted on the mounting module. The bearing mounting member is rotatably mounted on the first mounting seat through a connecting rotating shaft. The first mounting seat is provided with an angle adjustment member. The angle adjustment member is connected to the bearing mounting member and is used to adjust the relative angle between the bearing mounting member and the first mounting seat.

[0010] According to the bearing testing device of some embodiments of the present utility model, the first mounting seat is further provided with a displacement detection element. The measuring end face of the displacement detection element faces the bearing mounting member and is used to detect the displacement of the bearing mounting member.

[0011] According to the bearing testing device of some embodiments of the present utility model, the bearing mounting member includes a cooling block and a mounting block. The mounting block is formed with a mounting cavity for accommodating the bearing to be tested. One end of the cooling block is rotatably connected to the first mounting seat and the other end is connected to the mounting block. A cooling flow channel is formed in the cooling block.

[0012] According to the bearing testing device of some embodiments of the present utility model, an insulating member is further provided between the cooling block and the mounting block;

[0013] Wherein, a heat conducting member is provided between the insulating member and the mounting block.

[0014] According to the bearing testing device of some embodiments of the present utility model, the second driving module includes a second driving component and a cam structure. The second driving component is used to drive the cam structure to rotate, and the cam structure is provided with an eccentric mounting portion.

[0015] The reciprocating motion module includes a bearing mounting plate and a lifting mounting plate. The bearing mounting plate is mounted on the mounting frame, the lifting mounting plate is movably mounted on the bearing mounting plate, the reciprocating motion shaft is fixed to the lifting mounting plate, and the eccentric mounting portion is adapted to drive the lifting mounting plate and the reciprocating motion shaft to move along the axial direction of the bearing to be tested.

[0016] According to the bearing testing device of some embodiments of the present utility model, the reciprocating motion mechanism further includes a connection module. The connection module includes a tensile and compressive force detection element and a connecting rod. One end of the connecting rod is connected to the eccentric mounting portion, and the other end of the connecting rod is connected to the lifting mounting plate through the tensile and compressive force detection element.

[0017] According to the bearing testing device of some embodiments of the present utility model, the reciprocating motion module further includes an insulating structure. The reciprocating motion shaft is fixed to the lifting mounting plate through a connecting member, and the reciprocating motion shaft is spaced apart from the connecting member and the lifting mounting plate through the insulating structure.

[0018] According to the bearing testing device of some embodiments of the present utility model, the second driving component includes a second driving member, a driving gear, and a driven gear. The driving gear is connected to the output end of the second driving member, the driven gear meshes with the driving gear, and the driven gear is fixedly connected to the cam structure.

[0019] According to the bearing testing device of some embodiments of the present utility model, it further includes an installation shield. The installation shield is mounted above the installation frame and defines an installation space with the installation frame. The radial loading mechanism and the reciprocating motion mechanism are both located in the installation space.

[0020] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0022] Figure 1 is a schematic structural diagram of a bearing testing device according to an embodiment of the present utility model Figure 1 ;

[0023] Figure 2Schematic structure of a bearing testing device according to an embodiment of the present utility model Figure 2 ;

[0024] Figure 3 Front view of a bearing testing device according to an embodiment of the present utility model;

[0025] Figure 4 Schematic structural diagram of a second drive module of a bearing testing device according to an embodiment of the present utility model;

[0026] Figure 5 Schematic structural diagram of a reciprocating motion module of a bearing testing device according to an embodiment of the present utility model;

[0027] Figure 6 Cross-sectional view of a reciprocating motion shaft and an insulating structure of a bearing testing device according to an embodiment of the present utility model;

[0028] Figure 7 Schematic structural diagram of a radial loading mechanism of a bearing testing device according to an embodiment of the present utility model;

[0029] Figure 8 Schematic structural diagram of a bearing adjustment module of a bearing testing device according to an embodiment of the present utility model;

[0030] Figure 9 Partial cross-sectional view of a bearing adjustment module of a bearing testing device according to an embodiment of the present utility model;

[0031] Figure 10 Schematic diagram of the relationship between a displacement detection element and a bearing mounting member of a bearing testing device according to an embodiment of the present utility model.

[0032] Reference numerals:

[0033] Bearing testing device 100,

[0034] Radial loading mechanism 1, installation module 11, installation base 111, installation bottom plate 112, elevation block 113, reduction structure mounting seat 114, lead screw fixing block 115, lead screw support seat 116, first drive module 12, first drive assembly 121, first drive member 1211, reduction structure 1212, coupling 1213, drive lead screw 122, lead screw nut 1221, thrust assembly 123, first pressure detection element 1231, pressure sensor mounting block 1232, thrust connecting plate 1233, bearing adjustment module 13, first mounting seat 131, connecting rotating shaft 132, angle adjustment member 133, displacement detection element 134, adjustment mounting plate 135, displacement sensor mounting block 136, bearing mounting member 14, cooling block 141, water pipe interface 1411, mounting block 142, mounting cavity 1421, insulating member 143, heat conducting member 144, insulating sleeve 145, temperature sensor 146, bearing mounting block 147, bearing fixing block 148, linear slide rail 15, slider 16,

[0035] Reciprocating motion mechanism 2, second drive module 21, second drive assembly 211, second drive member 2111, driving gear 2112, driven gear 2113, motor mounting plate 2114, output shaft 2115, bearing seat 2116, locking nut 2117, bearing seat mounting plate 2118, cam structure 212, eccentric mounting portion 2121, cam fixing plate 2122, reciprocating motion module 22, reciprocating motion shaft 221, connecting portion 2211, bearing mounting plate 222, bearing plate mounting block 2221, lifting mounting plate 223, insulating structure 224, fixing pressure plate 2241, upper insulating plate 2242, lower insulating plate 2243, guiding shaft 226, linear bearing 227, connecting plate 228, slide rail slider 229, connecting module 23, tension and compression detection element 231, connecting rod 232, first spherical bearing 233, second spherical bearing 234, force sensor mounting block 235,

[0036] Installation frame 3, installation table board 31, counterweight plate 32, protective sheet metal 33, lower maintenance door 34, cooling fan 35, support foot cup 36, installation shield 4, installation space 41, lifting door 42, handle 421, observation window 422, upper maintenance door 43, bearing to be measured 5. Specific embodiments

[0037] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0039] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] The following refers to Figures 1 - 10 Describe the bearing test device 100 according to an embodiment of the present utility model. By setting the installation angle between the bearing under test 5 and the reciprocating motion shaft 221 to be adjustable, and driving the reciprocating motion shaft 221 to perform a reciprocating linear motion relative to the bearing under test 5 through the first driving module 12, and driving the bearing adjustment module 13 to apply different magnitudes of radial forces to the bearing under test 5 through the second driving module 21, the extreme installation scenario and the real motion state of the bearing under test 5 can be simulated, so that the service performance of the bearing under test 5 can be more accurately analyzed during the test, thereby improving the test accuracy of the bearing test device 100, and the structure is perfect and the use effect is good.

[0041] As Figures 1 - 10 As shown, the bearing test device 100 according to an embodiment of the present utility model includes: an installation frame 3, a radial loading mechanism 1, and a reciprocating motion mechanism 2.

[0042] Among them, the bearing test device 100 is used for the performance test of bearings. The installation frame 3 is used for the installation and fixation of other internal structures of the bearing test device 100, which is conducive to the integrated setting of the bearing test device 100. Moreover, the installation frame 3 provides support and fixation for the bearing test device 100, which can ensure that the bearing test device 100 remains stable during operation, improve the accuracy of the test, and prevent damage due to vibration or movement.

[0043] The radial loading mechanism 1 includes an installation module 11, a first driving module 12, and a bearing adjustment module 13. The installation module 11 is installed on the installation frame 3. The bearing adjustment module 13 is slidably installed on the installation module 11. The first driving module 12 is adapted to push the bearing adjustment module 13 to move radially along the bearing under test 5. The bearing adjustment module 13 is provided with a bearing mounting member 14 for mounting the bearing under test 5.

[0044] Specifically, the radial loading mechanism 1 is used to apply a radial force to the bearing under test 5. The radial loading mechanism 1 is located on the upper side of the installation frame 3. The installation module 11 and the installation frame 3 can be detachably connected by fasteners such as bolts to realize the installation of the radial loading mechanism 1. The first driving module 12 and the installation frame 3 can be detachably connected by fasteners such as bolts to realize the installation of the first driving module 12. The bearing adjustment module 13 and the installation module 11 are slidably connected, and the two can be connected by a linear slide rail 15, so that the bearing adjustment module 13 can slide relative to the installation module 11 in a certain direction. The first driving module 12 is connected to the bearing adjustment module 13. The first driving module 12 serves as the power source of the bearing adjustment module 13 to realize the driving of the bearing adjustment module 13 by the first driving module 12. The bearing adjustment module 13 is provided with a bearing mounting member 14. Among them, the bearing under test 5 can be a oil-free bearing, and the bearing mounting member 14 is provided with a mounting hole for mounting the oil-free bearing.

[0045] Among them, the first driving module 12 can include a driving motor, and the bearing adjustment module 13 is driven by the driving motor to move radially along the bearing under test 5 in the direction of the bearing under test 5, which can simulate the radial force received by the bearing under test 5 during actual operation. The first driving module 12 can adjust the movement speed of the bearing adjustment module 13 to change the magnitude of the radial force applied to the bearing under test 5, so as to meet the test requirements of different operating conditions.

[0046] The reciprocating motion mechanism 2 is installed on the installation frame 3. The reciprocating motion mechanism 2 includes a second driving module 21 and a reciprocating motion module 22. The reciprocating motion module 22 includes a reciprocating motion shaft 221. The reciprocating motion shaft 221 is adapted to axially penetrate through the bearing under test 5. The second driving module 21 is connected to the reciprocating motion module 22 and is used to drive the reciprocating motion shaft 221 to reciprocate axially.

[0047] Specifically, the reciprocating motion module 22 is used to implement the reciprocating motion of the reciprocating motion shaft 221. The reciprocating motion mechanism 2 is detachably connected to the mounting frame 3. The second driving module 21 and the mounting frame 3 can be detachably connected by fasteners such as bolts to realize the installation of the first driving module 12. The reciprocating motion module 22 includes a reciprocating motion shaft 221. The axial direction of the reciprocating motion shaft 221 is consistent with the motion direction of the reciprocating motion module 22, enabling the reciprocating motion shaft 221 to reciprocate with the reciprocating motion module 22. The reciprocating motion shaft 221 passes through the bearing under test 5, realizing the movable connection between the bearing under test 5 and the reciprocating motion mechanism 2. The reciprocating motion module 22 is connected to the second driving module 21. The second driving module 21 serves as the power source of the reciprocating motion module 22, enabling the second driving module 21 to drive the reciprocating motion module 22.

[0048] Among them, the second driving module 21 may include a driving motor. By driving the reciprocating motion shaft 221 to reciprocate axially relative to the bearing under test 5, the motion state between the bearing under test 5 and the reciprocating motion shaft 221 during actual operation can be simulated. The second driving module 21 can adjust the motion speed of the reciprocating motion shaft 221 to change the motion speed of the reciprocating motion shaft 221 relative to the bearing under test 5, realizing the test requirements under different operating conditions.

[0049] When the second driving module 21 drives the reciprocating motion shaft 221 to reciprocate axially, a reciprocating friction motion occurs between the reciprocating motion shaft 221 and the bearing under test 5. The first driving module 12 drives the bearing adjustment module 13 to move radially along the bearing under test 5 to apply a radial force to the bearing under test 5. In this way, through the setting of the above two motions, the usage environment in which the bearing under test 5 is subjected to different magnitudes of radial forces during actual use can be simulated, and then the frictional force received by the bearing under test 5 can be measured, thereby realizing the durability test of the bearing under test 5.

[0050] Among them, the angle of the bearing mounting member 14 relative to the motion direction of the bearing adjustment module 13 is adjustable. In this embodiment, the motion direction of the bearing adjustment module 13 is set to be horizontal. The bearing under test 5 is mounted on the bearing mounting member 14, and the motion direction of the reciprocating motion mechanism 2 is set to be vertical. During actual installation, there will be a deviation in the installation of the bearing under test 5 and the reciprocating motion shaft 221. By adjusting the angle of the bearing mounting member 14 relative to the horizontal direction, the installation angle between the bearing under test 5 and the reciprocating motion shaft 221 can be adjusted.

[0051] Thus, by setting the installation angle between the bearing 5 to be measured and the reciprocating shaft 221 to be adjustable, the installation angle of the bearing 5 to be measured can be changed, so that the installation of the bearing 5 to be measured better conforms to the actual use conditions. Moreover, through the driving of the second driving module 21 and the first driving module 12, the movement scenario between the bearing 5 to be measured and the reciprocating shaft 221 can be simulated, thereby more accurately detecting the friction force during the actual use of the bearing 5 to be measured and effectively measuring the durability of the bearing 5 to be measured.

[0052] According to the bearing testing device 100 of the embodiment of the present invention, by setting the installation angle between the bearing 5 to be measured and the reciprocating shaft 221 to be adjustable, and driving the reciprocating shaft 221 to perform a reciprocating linear motion relative to the bearing 5 to be measured through the first driving module 12, and driving the bearing adjustment module 13 to apply radial forces of different magnitudes to the bearing 5 to be measured through the second driving module 21, the extreme installation scenario and the real motion state of the bearing 5 to be measured can be simulated, so that the use performance of the bearing 5 to be measured can be more accurately analyzed during the test, thereby improving the test accuracy of the bearing testing device 100, and the structure is perfect and the use effect is good.

[0053] In some embodiments, the first driving module 12 includes a first driving component 121, a driving lead screw 122 and a thrust component 123. The thrust component 123 is slidably installed on the installation module 11. The first driving component 121 is used to drive the driving lead screw 122 to rotate. The driving lead screw 122 is in threaded cooperation with the thrust component 123 and is adapted to drive the thrust component 123 to approach or move away from the bearing adjustment module 13. The thrust component 123 is adapted to push the bearing adjustment module 13 to move along the radial direction of the bearing 5 to be measured.

[0054] Specifically, the first driving component 121 is the power source of the first driving module 12, the driving lead screw 122 is the transmission structure of the first driving module 12, and the thrust component 123 is used to push the bearing adjustment module 13 to move. The first driving component 121 is power-connected to the driving lead screw 122. The driving lead screw 122 can be in threaded cooperation with the thrust component 123 through a lead screw nut 1221, and the thrust component 123 is also slidably connected to the installation module 11, and the two can be connected through a linear slide rail 15. By setting the linear slide rail 15, the stability of the movement of the thrust component 123 relative to the installation module 11 can be improved. And a bearing adjustment module 13 is provided on the side of the thrust component 123 away from the first driving component 121. Thus, the driving force of the first driving component 121 is transmitted to the thrust component 123 through the driving lead screw 122, and the movement of the thrust component 123 can be realized.

[0055] Further, when applying a radial force to the bearing 5 to be measured, the first driving assembly 121 drives the driving lead screw 122 to rotate. The driving lead screw 122 drives the thrust assembly 123 to approach the bearing adjustment module 13, so as to push the bearing adjustment module 13 to approach the bearing 5 to be measured along the radial direction of the bearing 5 to be measured, thereby realizing the application of a radial force to the bearing 5 to be measured. When the radial force does not need to be applied, the first driving assembly 121 drives the driving lead screw 122 to rotate in the reverse direction. The driving lead screw 122 drives the thrust assembly 123 to move away from the bearing adjustment module 13, so that the bearing adjustment module 13 does not bear the thrust. The bearing adjustment module 13 can move away from the bearing 5 to be measured along the radial direction of the bearing 5 to be measured, so as to remove the radial force applied to the bearing 5 to be measured.

[0056] Thus, through the forward driving and reverse driving of the first driving assembly 121, the radial loading and non-loading of the bearing 5 to be measured can be realized, so as to simulate different motion states of the bearing 5 to be measured and the reciprocating motion shaft 221.

[0057] In some embodiments, the thrust assembly 123 and / or the bearing adjustment module 13 are provided with a first pressure detection element 1231, and the thrust assembly 123 and the bearing adjustment module 13 are in pressing contact at the first pressure detection element 1231.

[0058] Specifically, the first pressure detection element 1231 can be provided on the thrust assembly 123, or the first pressure detection element 1231 can be provided on the bearing adjustment module 13. The first pressure detection element 1231 is used to detect the acting force between the thrust assembly 123 and the bearing adjustment module 13. Through the above two setting methods, the detection of the acting force can be realized. The setting method is not unique and can be selected according to the actual space requirements.

[0059] In this embodiment, as Figure 3 and Figure 7 shown, the first pressure detection element 1231 is arranged on the thrust assembly 123. In this way, when the first driving assembly 121 drives the driving lead screw 122 to move and drives the thrust assembly 123 to push the bearing adjustment module 13 to move, the sensing head of the first pressure detection element 1231 is in pressing contact with the bearing adjustment module 13, and the thrust applied by the thrust assembly 123 to the bearing adjustment module 13 can be detected, that is, the radial force applied by the first driving assembly 121 to the bearing 5 to be measured can be measured. Thus, by feeding back the magnitude of the pressure through the first pressure detection element 1231, the magnitude of the pressure of the first pressure detection element 1231 can be directly controlled by controlling the magnitude of the output torque of the first driving assembly 121, so as to adjust the radial force of the bearing 5 to be measured, and its radial force measurement is more direct and accurate.

[0060] Among them, the first pressure detection element 1231 can be configured as a pressure sensor, and the pressure sensor is installed on the thrust assembly 123 through a pressure sensor mounting block 1232. The pressure sensor and the pressure sensor mounting block 1232 are detachably connected by fasteners such as bolts, and the pressure sensor mounting block 1232 and the thrust connection plate 1233 of the thrust assembly 123 are detachably connected by fasteners such as bolts, which is simple and convenient to install.

[0061] In some embodiments, the first driving assembly 121 includes a first driving member 1211, a reduction structure 1212, and a coupling 1213. The output end of the first driving member 1211 is connected to the reduction structure 1212, and the output end of the reduction structure 1212 is connected to the driving lead screw 122 through the coupling 1213.

[0062] Specifically, the first driving member 1211 can be configured as a driving motor. The output end of the driving motor is connected to the input end of the reduction structure 1212. The output end of the reduction structure 1212 is connected to the coupling 1213 and is connected to the input end of the driving lead screw 122 through the coupling 1213, which can realize the connection between the reduction structure 1212 and the driving lead screw 122. In this way, the driving force of the driving motor is transmitted to the driving lead screw 122 through the reduction structure 1212 and the coupling 1213 in sequence, which can realize the rotation of the driving lead screw 122. And through the reduction of the reduction structure 1212, the rotation speed from the driving motor to the driving lead screw 122 can be reduced to apply a more appropriate radial force to the bearing 5 to be measured, which can avoid the impact on the bearing 5 to be measured. And by adjusting the torque of the driving motor, the magnitude of the radial force can be adjusted.

[0063] As Figure 7 shown, the driving lead screw 122 is connected to the thrust assembly 123. The thrust assembly 123 and the mounting module 11 can be connected by two sets of linear slide rails 15. Each linear slide rail 15 is slidably connected with a slider 16. The thrust assembly 123 can be detachably connected to the two sets of sliders 16. In this way, when the driving lead screw 122 pushes the thrust assembly 123 to slide, and the thrust assembly 123 slides relative to the two sets of linear slide rails 15, the movement of the thrust assembly 123 can be ensured to be stable to provide a more accurate radial force. And the output shaft 2115 of the driving motor is vertically distributed with the output shaft 2115 of the reduction structure 1212, and the overall structure layout is more compact, which can save the layout space of the first driving member 1211.

[0064] Moreover, the installation module 11 includes an installation base 111, an installation bottom plate 112, and a heightening block 113. The installation base 111, the installation bottom plate 112, and the heightening block 113 are connected in sequence from bottom to top. There are two heightening blocks 113, and the two heightening blocks 113 are respectively detachably connected to the two linear slide rails 15. Among them, the installation bottom plate 112 is connected with a reduction structure mounting seat 114. After the first driving member 1211 and the reduction structure 1212 are connected, the reduction structure 1212 is connected to the reduction structure mounting seat 114, and the reduction structure 1212 and the coupling 1213 are respectively located at both ends of the reduction structure mounting seat 114. In this way, the connection and fixation of the first driving assembly 121 are realized. And the installation bottom plate 112 is provided with a lead screw fixing block 115 and a lead screw support seat 116, and the two ends of the driving lead screw 122 are fixed through the lead screw fixing block 115 and the lead screw support seat 116. And the installation base 111 is detachably connected to the installation frame 3, so that the connection and fixation of the radial loading mechanism 1 and the installation frame 3 can be realized, and the overall structure is firmly and stably installed. And through the above-set installation module 11, the vertical height of the bearing under test 5 can be heightened, so that the bearing under test 5 can effectively cooperate with the reciprocating motion shaft 221.

[0065] In some embodiments, the bearing adjustment module 13 includes a first mounting seat 131. The first mounting seat 131 is slidably mounted on the installation module 11. The bearing mounting member 14 is rotatably mounted on the first mounting seat 131 through a connecting rotating shaft 132. The first mounting seat 131 is provided with an angle adjustment member 133. The angle adjustment member 133 is connected to the bearing mounting member 14 and is used to adjust the relative angle between the bearing mounting member 14 and the first mounting seat 131.

[0066] Specifically, the first mounting seat 131 is slidably connected to the installation module 11, and the two can be connected through the linear slide rail 15. The bearing mounting member 14 is rotatably connected to the first mounting seat 131. As Figure 8 shown, and the first mounting seat 131 is connected with a connecting rotating shaft 132. The axial direction of the connecting rotating shaft 132 is along the horizontal direction, and the axial direction of the connecting rotating shaft 132 is perpendicular to the moving direction of the first mounting seat 131 relative to the installation module 11. In this way, the rotational connection between the first mounting seat 131 and the bearing mounting member 14 can be realized through the connecting rotating shaft 132. And the first mounting seat 131 is provided with an angle adjustment member 133 for angle adjustment. Among them, the adjustment output end of the angle adjustment member 133 is connected to the bearing mounting member 14, and the adjustment end of the angle adjustment member 133 is connected to the first mounting seat 131.

[0067] Among them, as Figure 7 and Figure 8As shown, the angle adjustment member 133 can be configured as an adjustment bolt. By rotating the adjustment bolt, the adjustment bolt can press downward against the bearing mounting member 14, and the bearing mounting member 14 can rotate relative to the first mounting seat 131 around the connecting rotating shaft 132, that is, the relative angle between the bearing mounting member 14 and the first mounting seat 131 can be increased. And by rotating the adjustment bolt in the reverse direction, the adjustment bolt can move upward, the bearing mounting member 14 is not pressed by the adjustment bolt, and the bearing mounting member 14 can rotate in the reverse direction relative to the first mounting seat 131 around the connecting rotating shaft 132, that is, the relative angle between the bearing mounting member 14 and the first mounting seat 131 can be decreased. By adjusting the relative angle between the bearing mounting member 14 and the first mounting seat 131, the installation angle between the bearing under test 5 and the reciprocating motion shaft 221 can be adjusted. The adjustment method is simple and convenient, and the structure is simple and the setting cost is low.

[0068] And, as Figure 7 shown, the bearing adjustment module 13 and the thrust assembly 123 can be slidably connected to the installation module 11 through two groups of linear slide rails 15 respectively. The first mounting seat 131 can be detachably connected to the two groups of sliders 16. In this way, when the thrust assembly 123 pushes the bearing adjustment module 13, the bearing adjustment module 13 slides relative to the two groups of linear slide rails 15, which can ensure the smooth movement of the bearing adjustment module 13 to provide a more accurate radial force for the bearing under test 5, and the overall structure is simple and the installation is convenient.

[0069] In some embodiments, the first mounting seat 131 is further provided with a displacement detection element 134. The measurement end face of the displacement detection element 134 is arranged facing the bearing mounting member 14 and is used to detect the displacement of the bearing mounting member 14.

[0070] Specifically, as Figure 8 shown, the displacement detection element 134 is used to detect displacement. The displacement detection element 134 is detachably connected to the first mounting seat 131, and the measurement end of the displacement detection element 134 is distributed facing the bearing mounting member 14 to detect the displacement of the bearing mounting member 14 relative to the displacement detection element 134. In this way, after the relative angle between the bearing mounting member 14 and the first mounting seat 131 is increased, the distance between the measurement end of the displacement detection element 134 and the bearing mounting member 14 becomes larger. At this time, the displacement detection element 134 detects a displacement. After the relative angle between the bearing mounting member 14 and the first mounting seat 131 is decreased, at this time, the displacement detection element 134 detects a displacement. In this way, according to the adjustment of the angle, the displacement detection element 134 can feedback different displacements to detect the size of the adjusted angle.

[0071] And as Figure 10In the relational diagram shown, when the bearing 5 to be measured is coaxially installed with the reciprocating motion shaft 221, the displacement detection element 134 detects the displacement of the initial position of the bearing mounting member 14. This displacement can be set as a. After adjusting the relative angle between the bearing mounting member 14 and the first mounting seat 131, this angle can be set as θ. And the displacement detection element 134 measures the current displacement of the bearing mounting member 14, which can be set as b. Also, the distance between the displacement detection element 134 and the center of the bearing 5 to be measured can be set as c. Through the relational expression θ = arctan((b - a) / c), the adjusted relative angle can be calculated, and this angle can represent the included angle between the bearing 5 to be measured and the horizontal direction.

[0072] Among them, as Figure 8 shown, the displacement detection element 134 can be configured as a displacement sensor. The first mounting seat 131 is connected with an adjustment mounting plate 135. The adjustment mounting plate 135 is detachably connected to the first mounting seat 131. The angle adjustment member 133 is installed on the adjustment mounting plate 135. Two angle adjustment members 133 can be provided, and the two angle adjustment members 133 are simultaneously used to adjust the relative angle between the bearing mounting seat and the first mounting seat 131. And the displacement sensor is installed on the adjustment mounting plate 135 through a displacement sensor mounting block 136. The displacement sensor and the displacement sensor mounting block 136 are detachably connected by fasteners such as bolts, and the displacement sensor mounting block 136 and the adjustment mounting plate 135 are detachably connected by fasteners such as bolts, with simple and convenient installation.

[0073] In some embodiments, the bearing mounting member 14 includes a cooling block 141 and a mounting block 142. The mounting block 142 is formed with a mounting cavity 1421 for accommodating the bearing 5 to be measured. One end of the cooling block 141 is rotatably connected to the first mounting seat 131 and the other end is connected to the mounting block 142. A cooling flow channel is formed in the cooling block 141.

[0074] Specifically, the cooling block 141 is used to achieve the cooling function, and the mounting block 142 is used for the installation of the bearing 5 to be measured, as Figure 8 and Figure 9As shown in the figure, one end of the cooling block 141 is rotatably connected to the first mounting seat 131, and the other end of the cooling block 141 is detachably connected to the mounting block 142 by fasteners such as bolts. The mounting block 142 is formed with a mounting cavity 1421 for mounting the bearing 5 to be tested. The mounting cavity 1421 is configured as a round hole and penetrates through the mounting block 142. The mounting cavity 1421 and the bearing 5 to be tested can be in interference fit to ensure the mounting reliability of the bearing 5 to be tested. The mounting block 142 and the cooling block 141 are connected as a whole. The bearing 5 to be tested can be rotatably connected to the first mounting seat 131 through the cooling block 141. Then, by adjusting the relative angle between the cooling block 141 and the first mounting seat 131, the relative angle between the bearing 5 to be tested and the first mounting seat 131 can be adjusted. The reciprocating motion shaft 221 passes through the bearing 5 to be tested. A cooling flow channel is formed in the cooling block 141, and two water pipe interfaces 1411 are provided on both sides of the cooling block 141. The four water pipe interfaces 1411 are connected to the external water pipes. In this way, the structure of the cooling block 141 can be cooled through water circulation.

[0075] Further, during the reciprocating motion of the reciprocating motion shaft 221 and the bearing 5 to be tested, heat is generated by friction between the two, causing the temperature of the bearing 5 to be tested to rise. The heat can be transferred from the mounting block 142 to the cooling block 141, and the heat is taken away by the circulating cooling water in the cooling block 141 to achieve water cooling of the bearing 5 to be tested.

[0076] In some embodiments, an insulating member 143 is further provided between the cooling block 141 and the mounting block 142. The insulating member 143 is used to prevent the conduction of current or voltage. The insulating member 143 can be made of materials such as plastic and rubber. As Figure 9 shown, the insulating member 143 is located between the cooling block 141 and the mounting block 142, and the insulating member 143 is provided with an avoidance hole for avoiding the connecting bolts of the mounting block 142 and the cooling block 141. In this way, the mounting block 142, the insulating member 143 and the cooling block 141 can be connected by the connecting bolts. An insulating sleeve 145 is provided on the mounting block 142, and the insulating sleeve 145 combines with the insulating member 143 to avoid conduction between the mounting block 142, the insulating member 143 and the cooling block 141, and can ensure that the bearing 5 to be tested is insulated from other structures of the equipment. In this way, the bearing 5 to be tested can be subjected to electrocorrosion testing.

[0077] Among them, a heat conducting member 144 is provided between the insulating member 143 and the mounting block 142. The heat conducting member 144 is used to transfer heat. The heat conducting member 144 can be made of materials such as silica gel. Among them, the insulating member 143 has good insulation properties, but its heat conductivity is poor. As Figure 9As shown, the middle region of the insulating member 143 is configured as a through hole, and the heat conducting member 144 is filled in the through hole, so that both ends of the heat conducting member 144 can be connected to the mounting block 142 and the cooling block 141 respectively. In this way, the heat at the bearing 5 to be measured can be transferred to the cooling block 141 through the heat conducting member 144, and cooling and temperature reduction are achieved through the cooling block 141. And a temperature sensor 146 is provided on one side of the mounting block 142 close to the bearing 5 to be measured. The temperature sensor 146 is used to detect the temperature change of the bearing 5 to be measured during the whole test process and provide temperature data for test analysis.

[0078] In addition, it should be noted that the mounting block 142 can be configured as an integral structure, or the mounting block 142 can also be configured as two structures. In this embodiment, as Figure 8 and Figure 9 shown, the mounting block 142 includes a bearing mounting block 147 and a bearing fixing block 148. The bearing mounting block 147 and the bearing fixing block 148 jointly define a mounting cavity 1421 for mounting the bearing 5 to be measured. One end of the bearing mounting block 147 is connected to the insulating member 143, and the other end is detachably connected to the bearing fixing block 148. In this way, the bearing fixing block 148 can press the bearing 5 to be measured along the radial direction of the bearing 5 to be measured, and the installation of the bearing 5 to be measured is realized.

[0079] In some embodiments, the second driving module 21 includes a second driving component 211 and a cam structure 212. The second driving component 211 is used to drive the cam structure 212 to rotate, and the cam structure 212 is provided with an eccentric mounting portion 2121.

[0080] Specifically, as Figure 2 and Figure 3 shown, the second driving module 21 is located at the bottom of the installation rack 3. The second driving component 211 is the power source of the second driving module 21. The second driving component 211 is power-connected to the cam structure 212. The first driving component 121 can drive the cam structure 212 to rotate. Among them, the cam structure 212 can be configured as a disc structure, and an eccentric mounting portion 2121 is provided in a region of the cam structure 212 radially away from its center for connecting the cam structure 212 to other structures. After the cam structure 212 rotates, other structures can be driven through the eccentric mounting portion 2121, and the eccentric mounting portion 2121 can convert the rotational motion of the cam structure 212 into other types of motion, usually a linear motion. Among them, the specific position of the eccentric mounting portion 2121 can be set according to the actual motion stroke requirements.

[0081] The reciprocating motion module 22 includes a bearing mounting plate 222 and a lifting mounting plate 223. The bearing mounting plate 222 is mounted on the mounting frame 3, and the lifting mounting plate 223 is movably mounted on the bearing mounting plate 222. The reciprocating motion shaft 221 is fixed to the lifting mounting plate 223, and the eccentric mounting portion 2121 is adapted to drive the lifting mounting plate 223 and the reciprocating motion shaft 221 to move along the axial direction of the bearing under test 5.

[0082] Specifically, the bearing mounting plate 222 is detachably connected to the mounting frame 3, that is, the bearing mounting plate 222 can be non-relative to the mounting frame 3. The lifting mounting plate 223 is movably connected to the bearing mounting plate 222. In this embodiment, the lifting mounting plate 223 can move up and down relative to the bearing mounting plate 222, and the reciprocating motion shaft 221 is connected to the lifting mounting plate 223, so that the reciprocating motion shaft 221 can move with the lifting mounting plate 223, and the eccentric mounting portion 2121 is connected to the lifting mounting plate 223. In this way, after the cam structure 212 rotates, the eccentric mounting portion 2121 drives the lifting mounting plate 223 to move, and the lifting mounting plate 223 drives the reciprocating motion shaft 221 to move along the axial direction of the bearing under test 5, and the reciprocating motion between the reciprocating motion shaft 221 and the bearing under test 5 can be realized. Among them, every time the cam structure 212 rotates one circle, it drives the reciprocating motion mechanism 2 to move up and down once.

[0083] Among them, as Figure 5 shown, the lifting mounting plate 223 is movably connected to the bearing mounting plate 222 through three groups of guide shafts 226, and the three groups of guide shafts 226 are respectively connected to the bearing mounting plate 222 through linear bearings 227. The three groups of guide shafts 226 penetrate through the bearing mounting plate 222, and one end of the three groups of guide shafts 226 is connected to the lifting mounting plate 223, and the other ends of the three groups of guide shafts 226 are connected through a connecting plate 228, which can fix the three groups of guide shafts 226. With such a setting, the up and down movement of the lifting mounting plate 223 relative to the bearing mounting plate 222 can be made more stable to ensure the movement accuracy between the reciprocating motion shaft 221 and the bearing under test 5.

[0084] And it should be noted that, as Figure 2 and Figure 5 shown, the bearing mounting plate 222 is slidably connected to the mounting frame 3 through two groups of slide rails and sliders 229, and the bearing mounting plate 222 is detachably connected to the mounting frame 3 through two bearing plate mounting blocks 2221, that is, the connection and fixation of the bearing mounting plate 222 can be realized.

[0085] In some embodiments, the reciprocating motion mechanism 2 further includes a connection module 23. The connection module 23 includes a tensile and compressive force detection element 231 and a connecting rod 232. One end of the connecting rod 232 is connected to the eccentric mounting portion 2121, and the other end of the connecting rod 232 is connected to the lifting mounting plate 223 through the tensile and compressive force detection element 231.

[0086] Specifically, as Figure 5 shown, the connection module 23 includes a connecting rod 232 and a tensile and compressive force detection element 231. Among them, the bearing mounting plate 222 is provided with an avoidance groove for avoiding the connection module 23. The connection module 23 passes through the bearing mounting plate 222, and both ends of the connecting rod 232 are respectively connected to the eccentric mounting portion 2121 and the lifting mounting plate 223. In actual design, the connecting rod 232 extends vertically. The lower end of the connecting rod 232 is connected to the eccentric mounting portion 2121, and the upper end of the connecting rod 232 is connected to the tensile and compressive force detection element 231. The tensile and compressive force detection element 231 is connected to the lifting mounting plate 223, and the tensile and compressive force detection element 231 is used to detect the force during the reciprocating motion of the reciprocating motion mechanism 2.

[0087] The tensile and compressive force detection element 231 is configured as a tensile and compressive force sensor. In actual tests, when the radial loading mechanism 1 does not apply a radial force to the bearing 5 to be tested, the reciprocating motion mechanism 2 slowly reciprocates up and down. At this time, the tensile and compressive force sensor feeds back a force value F1; when the radial loading mechanism 1 applies a radial force to the bearing 5 to be tested, the reciprocating motion mechanism 2 slowly reciprocates up and down. At this time, the tensile and compressive force sensor feeds back a force value F2. By calculating the magnitude of (F2 - F1), the magnitude of the frictional force during the reciprocating motion can be obtained, providing frictional force data for experimental analysis.

[0088] Among them, it should be noted that one end of the connecting rod 232 is connected to the eccentric mounting portion 2121 through a first spherical bearing 233, and a second spherical bearing 234 is connected to the upper end of the connecting rod 232. The lower end of the tensile and compressive force sensor is connected to a force sensor mounting block 235, and the force sensor mounting block 235 is connected to the second spherical bearing 234. In this way, the two ends of the connecting rod 232 can be respectively connected to the lifting mounting plate 223 and the eccentric mounting portion 2121. The first spherical bearing 233 and the second spherical bearing 234 have the characteristic of a swing amplitude, which can absorb the influence of the deviation between the installation positions of the cam structure 212 and the reciprocating motion mechanism 2 on the smoothness of the reciprocating motion in the vertical direction, improving the reliability and durability of the structure.

[0089] In some embodiments, the reciprocating motion module 22 further includes an insulating structure 224. The reciprocating motion shaft 221 is fixed to the lifting mounting plate 223 through a connecting member, and the reciprocating motion shaft 221 is spaced apart from the connecting member and the lifting mounting plate 223 through the insulating structure 224.

[0090] Specifically, the reciprocating motion shaft 221 is detachably connected to the lifting mounting plate 223, such as Figure 6As shown, a connecting portion 2211 is provided at one end of the reciprocating shaft 221 close to the lifting mounting plate 223. A plurality of avoiding holes are circumferentially distributed on the connecting portion 2211. The insulating structure 224 includes a fixed pressing plate 2241, an upper insulating plate 2242 and a lower insulating plate 2243 which are sequentially distributed from top to bottom. The fixed pressing plate 2241, the upper insulating plate 2242 and the lower insulating plate 2243 are respectively provided with a plurality of mounting holes. The plurality of mounting holes and the plurality of avoiding holes are distributed in one-to-one correspondence. Correspondingly, a plurality of connecting holes are provided on the lifting mounting plate 223. The connecting holes are configured as bolt holes, and the connecting member can be a connecting bolt. During installation, after the plurality of mounting holes and the plurality of connecting holes are in one-to-one correspondence, the plurality of connecting bolts are sequentially passed through the mounting holes and the connecting holes, and the reciprocating shaft 221 is connected to the lifting mounting plate 223 through the insulating structure 224.

[0091] And insulating sleeves 145 are provided in the plurality of mounting holes and the avoiding holes. By using the insulating sleeves 145 and the insulating structure 224, the reciprocating shaft 221 and the lifting mounting plate 223 can be spaced apart, and the connecting member does not directly contact the reciprocating shaft 221, ensuring that the reciprocating shaft 221 is insulated and non-conductive from other structures of the equipment, and the bearing under test 5 is insulated and non-conductive from other structures of the equipment. In this way, during the electro-corrosion test, the current is allowed to flow through the bearing under test 5 to the reciprocating shaft 221 and then flow out from the reciprocating shaft 221, and the current does not pass through other structures of the equipment, which can ensure the safety of the test.

[0092] In some embodiments, the second driving assembly 211 includes a second driving member 2111, a driving gear 2112 and a driven gear 2113. The driving gear 2112 is connected to the output end of the second driving member 2111, the driven gear 2113 meshes with the driving gear 2112, and the driven gear 2113 is fixedly connected to the cam structure 212.

[0093] Specifically, as Figure 4 shown, the second driving member 2111 can be configured as a driving motor. The output end of the driving motor is connected to the driving gear 2112. The driving gear 2112 meshes with the driven gear 2113, and the driven gear 2113 and the cam structure 212 are respectively connected to both ends of the output shaft 2115. And the cam structure 212 is connected to the reciprocating mechanism 2 through an eccentric mounting portion 2121. And there is a gap between the driving gear 2112 and the driven gear 2113, which can absorb the impact force brought to the driving motor when the reciprocating mechanism 2 performs reciprocating motion, effectively protecting the motor.

[0094] Thus, the driving force of the second driving member 2111 is transmitted to the cam structure 212 through the driving gear 2112, the driven gear 2113 and the output shaft 2115. The cam structure 212 drives the reciprocating mechanism 2 to perform reciprocating motion, and the linear motion of the reciprocating mechanism 2 can be realized. Its setting is reasonable and the motion is easy to achieve.

[0095] Among them, as Figure 4 shown, the drive motor is detachably connected to the mounting frame 3 through the motor mounting plate 2114, and a bearing seat 2116 is provided between the driven gear 2113 and the cam structure 212 on the output shaft 2115. The bearing seat 2116 is detachably connected to the mounting frame 3 through the bearing seat mounting plate 2118, and two deep groove ball bearings are provided inside the bearing seat 2116. The two deep groove ball bearings are respectively connected to both ends of the output shaft 2115. In this way, the smooth rotation of the output shaft 2115 can be ensured through the bearing seat 2116, and a locking nut 2117 is provided on the output shaft 2115 to fix the relative position of the output shaft 2115. A cam fixing plate 2122 is provided at the output end of the output shaft 2115 to realize the relative fixation of the cam structure 212 and the output shaft 2115. In this way, the setting of the second drive module 21 can be realized, and the overall structure is reasonable, stable and reliable in operation.

[0096] In addition, it should be noted that the setting method of the second drive assembly 211 is not limited to that described in this embodiment. The second drive assembly 211 can also be set such that the first drive member 1211 does not adopt the gear motion pair method. The second drive member 2111 can be directly connected to the cam structure 212 through the coupling 1213, and the second drive member 2111 directly drives the rotation of the cam structure 212. Or, the second drive member 2111 can adopt a hydraulic cylinder, that is, it can be connected to the reciprocating motion mechanism 2 through the hydraulic cylinder, and can directly drive the linear motion of the reciprocating motion mechanism 2.

[0097] In some embodiments, the bearing testing device 100 further includes a mounting shield 4. The mounting shield 4 is mounted above the mounting frame 3 and defines a mounting space 41 with the mounting frame 3. The radial loading mechanism 1 and the reciprocating motion mechanism 2 are both located in the mounting space 41.

[0098] Specifically, the mounting shield 4 is used to protect the internal structure of the bearing testing device 100. The mounting shield 4 is located above the mounting frame 3. The mounting frame 3 is configured as a cuboid structure, which can be formed by splicing profiles. And a mounting table board 31 is provided between the mounting shield 4 and the mounting frame 3. The mounting table board 31 is laid on the upper side of the mounting frame 3, and the mounting table board 31 is detachably connected to the mounting frame 3 through bolts. A receiving cavity is formed inside the mounting shield 4. The mounting shield 4 and the mounting frame 3 jointly define a mounting space 41 for accommodating the radial loading mechanism 1 and the reciprocating motion mechanism 2. And the radial loading mechanism 1 and the reciprocating motion mechanism 2 are detachably connected to the upper side of the mounting table board 31. The internal space of the mounting frame 3 is used for mounting the second drive module 21 of the reciprocating motion mechanism 2. In this way, the layout of each motion structure can be realized.

[0099] Among them, a counterweight plate 32 is provided at the bottom of the installation rack 3, which is used to increase the weight of the entire device and lower the center of gravity of the device, so as to improve the stability of the device. Protective sheet metal 33 is provided on the outer periphery of the installation rack 3, and a lower maintenance door 34 is movably connected to the protective sheet metal 33 on the front side of the installation rack 3, which is used for personnel to install and maintain the internal structure of the device. A heat dissipation fan 35 is also provided on the lower maintenance door 34. An electrical structure is also provided inside the installation rack 3. The heat dissipation fan 35 is used for heat dissipation of the bearing testing device 100. Support feet 36 are provided at the four corners of the installation rack 3, which are used for supporting the entire device and adjusting the height of the device. A lifting door 42 is provided on the front side of the installation shield 4. The lifting door 42 is provided with a handle 421, which is used to open or close the lifting door 42. An observation window 422 is provided in the middle area of the lifting door 42. The observation window 422 can be made of transparent organic glass. Personnel can view the internal test situation of the device through the observation window 422. Upper maintenance doors 43 are provided at both ends of the installation shield 4, which are used for personnel to install and maintain the internal structure of the device.

[0100] In addition, in this embodiment, the bearing testing device 100 is a vertical device, that is, the moving direction of the reciprocating motion mechanism 2 is the vertical direction, and the moving direction of the radial loading mechanism 1 is the horizontal direction. For example, in some other embodiments, a horizontal structure is adopted, that is, the moving direction of the reciprocating motion mechanism 2 is the horizontal direction, and the moving direction of the radial loading mechanism 1 is the vertical direction. Different setting methods can all meet the test requirements.

[0101] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0102] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bearing testing device, characterized in that: include: Mounting rack (3); A radial loading mechanism (1), the radial loading mechanism (1) comprising a mounting module (11), a first driving module (12) and a bearing adjustment module (13), the mounting module (11) being mounted on the mounting frame (3), the bearing adjustment module (13) being slidably mounted on the mounting module (11), the first driving module (12) being adapted to push the bearing adjustment module (13) to move along the radial direction of a bearing to be tested (5), and the bearing adjustment module (13) being provided with a bearing mounting member (14) for mounting the bearing to be tested (5); A reciprocating mechanism (2), the reciprocating mechanism (2) being mounted on the mounting frame (3), the reciprocating mechanism (2) comprising a second driving module (21) and a reciprocating module (22), the reciprocating module (22) comprising a reciprocating shaft (221), the reciprocating shaft (221) being adapted to be axially penetrated through the bearing to be tested (5), the second driving module (21) being connected to the reciprocating module (22) and being used to drive the reciprocating shaft (221) to reciprocate axially; The angle of the bearing mounting member (14) relative to the movement direction of the bearing adjustment module (13) is adjustable.

2. The bearing testing device according to claim 1, characterized in that: The first driving module (12) comprises a first driving component (121), a driving screw (122) and a thrust component (123); the thrust component (123) is slidably mounted on the mounting module (11); the first driving component (121) is used to drive the driving screw (122) to rotate; the driving screw (122) is threadedly matched with the thrust component (123) and is suitable for driving the thrust component (123) to approach or move away from the bearing adjustment module (13); the thrust component (123) is suitable for pushing the bearing adjustment module (13) to move along the radial direction of the bearing (5) to be tested.

3. The bearing testing device according to claim 2, characterized in that: The thrust assembly (123) and / or the bearing adjustment module (13) is provided with a first pressure detection element (1231), and the thrust assembly (123) and the bearing adjustment module (13) are in pressure contact at the first pressure detection element (1231).

4. The bearing testing device according to claim 2, characterized in that: The first driving component (121) comprises a first driving member (1211), a reduction structure (1212) and a coupling (1213); the output end of the first driving member (1211) is connected to the reduction structure (1212); and the output end of the reduction structure (1212) is connected to the driving screw (122) via the coupling (1213).

5. The bearing testing device according to claim 1, characterized in that: The bearing adjustment module (13) comprises a first mounting seat (131), the first mounting seat (131) is slidably mounted on the mounting module (11), the bearing mounting member (14) is rotatably mounted on the first mounting seat (131) via a connecting shaft (132), and the first mounting seat (131) is provided with an angle adjustment member (133), the angle adjustment member (133) is connected to the bearing mounting member (14) and is used to adjust the relative angle between the bearing mounting member (14) and the first mounting seat (131).

6. The bearing testing device according to claim 5, characterized in that: The first mounting seat (131) is also provided with a displacement detection element (134), the measuring end face of the displacement detection element (134) being arranged toward the bearing mounting member (14) and being used to detect the displacement of the bearing mounting member (14).

7. The bearing testing device according to claim 5, characterized in that: The bearing mounting member (14) comprises a cooling block (141) and a mounting block (142); the mounting block (142) is formed with a mounting cavity (1421) for accommodating the bearing to be tested (5); one end of the cooling block (141) is rotatably connected to the first mounting seat (131) and the other end is connected to the mounting block (142); a cooling flow channel is formed in the cooling block (141).

8. The bearing testing device according to claim 7, characterized in that: An insulating member (143) is also provided between the cooling block (141) and the mounting block (142); Wherein, a heat conducting member (144) is provided between the insulating member (143) and the mounting block (142).

9. The bearing testing device according to claim 1, characterized in that: The second driving module (21) comprises a second driving component (211) and a cam structure (212); the second driving component (211) is used to drive the cam structure (212) to rotate; the cam structure (212) is provided with an eccentric mounting portion (2121); The reciprocating motion module (22) comprises a bearing mounting plate (222) and a lifting mounting plate (223); the bearing mounting plate (222) is mounted on the mounting frame (3); the lifting mounting plate (223) is movably mounted on the bearing mounting plate (222); the reciprocating motion shaft (221) is fixed to the lifting mounting plate (223); and the eccentric mounting portion (2121) is suitable for driving the lifting mounting plate (223) and the reciprocating motion shaft (221) to move along the axial direction of the bearing (5) to be tested.

10. The bearing testing device according to claim 9, characterized in that The reciprocating mechanism (2) further comprises a connecting module (23), wherein the connecting module (23) comprises a tension and pressure detection element (231) and a connecting rod (232), wherein one end of the connecting rod (232) is connected to the eccentric mounting portion (2121), and the other end of the connecting rod (232) is connected to the lifting mounting plate (223) via the tension and pressure detection element (231).

11. The bearing testing device according to claim 9, characterized in that: The reciprocating module (22) further comprises an insulating structure (224); the reciprocating shaft (221) is fixed to the lifting installation plate (223) via a connecting piece; the reciprocating shaft (221) is separated from the connecting piece and the lifting installation plate (223) by the insulating structure (224).

12. The bearing testing device according to claim 9, characterized in that: The second driving assembly (211) comprises a second driving member (2111), a driving gear (2112) and a driven gear (2113); the driving gear (2112) is connected to the output end of the second driving member (2111); the driven gear (2113) is meshed with the driving gear (2112); and the driven gear (2113) is fixedly connected to the cam structure (212).

13. The bearing testing device according to claim 1, characterized in that: It also comprises a mounting shield (4), wherein the mounting shield (4) is mounted above the mounting frame (3) and defines a mounting space (41) with the mounting frame (3), wherein the radial loading mechanism (1) and the reciprocating mechanism (2) are both located in the mounting space (41).

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