Bearing experiment installation platform

Abstract

The utility model relates to the technical field of bearing testing, in particular to a bearing experiment installation platform, which comprises a base platform, a split type seat body, a semicircular top seat and a driving motor, a testing mechanism is arranged on the base platform, the testing mechanism comprises a first transmission rod, an inner connecting block and a bearing, a heat dissipation mechanism is arranged on the inner connecting block, and the bearing is arranged on the first transmission rod. The heat dissipation mechanism comprises a second transmission rod, and one end of the second transmission rod is in threaded connection with the inner wall of the inner connecting block. According to the utility model, through the arrangement of the heat dissipation mechanism, the fan blades blow external air to the bearings in the split type seat body and the semicircular top seat through the filter screen, so that the problem of temperature rise caused by heat generated by friction in the bearing testing process can be effectively reduced; therefore, the problems of thermal expansion, lubrication degradation, test data deviation and the like caused by heat accumulation are avoided, the test precision is improved, the service life of the bearing and the device is prolonged, and the safety and the reliability of experimental operation can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of bearing testing technology, specifically a bearing experimental installation platform. Background Technology

[0002] A bearing test mounting platform is a device used for static and dynamic balancing tests on bearings or rotating machinery components. Its main function is to simulate actual working conditions and verify the operational stability, balance, and mechanical performance of bearings or other rotating components.

[0003] During the movement of the rolling elements and the inner and outer rings of a bearing, although the load is mainly transferred through rolling contact, sliding friction inevitably exists due to the non-ideal nature of the geometry, contact angle, and load distribution. This friction mainly originates from the relative sliding between the rolling elements and the cage, as well as the tumbling friction of the rolling elements. The presence of friction inevitably leads to the generation of heat. Existing testing devices are typically designed in a semi-enclosed manner. This design restricts the free convection diffusion of heat to the environment because airflow is limited in the semi-enclosed space. Heat is mainly dissipated through the thermal conductivity of solid materials, and the devices usually use steel or cast iron, which have relatively low thermal conductivity, significantly reducing the heat transfer rate. Furthermore, without forced cooling, the system can only rely on natural heat dissipation, which is limited by the surface area of ​​the equipment and the temperature difference with the environment. According to Fourier's law of heat conduction and Newton's law of cooling, natural heat dissipation capacity is proportional to surface area. However, due to structural design limitations, the heat dissipation surface area of ​​the testing device is usually limited, further weakening its effective heat dissipation capacity. As the operating time increases, heat accumulation in the bearing area leads to a gradual increase in temperature, and the thermal expansion effect of the bearing and surrounding materials gradually becomes apparent. According to the principle of thermal expansion, the difference in the coefficients of thermal expansion of different materials will cause changes in the contact fit. For example, the clearance between the inner ring and the shaft, and between the outer ring and the housing bore, will shrink due to expansion. This change in clearance will disrupt the stress distribution and contact stiffness of the initial design, not only exacerbating the local contact pressure between the rolling elements and the raceway, but also further enhancing sliding friction. In addition, the geometric changes caused by thermal expansion may disrupt the dynamic balance of the bearing system, increasing the system's vibration frequency and amplitude. These changes will manifest as deviations in frictional torque, vibration acceleration, and noise characteristics in the test data, ultimately leading to distorted test results that cannot accurately reflect the bearing's working performance.

[0004] In view of this, we propose a bearing test installation platform. Utility Model Content

[0005] The purpose of this utility model is to provide a bearing test installation platform. This bearing test installation platform solves the problem that heat accumulation caused by sliding friction and poor heat dissipation of the device during bearing testing leads to thermal expansion, which alters the fit clearance and dynamic balance, thereby distorting the test results.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bearing testing and mounting platform includes a base platform, a split-type seat, a semi-circular top seat, and a drive motor. A testing mechanism is mounted on the base platform. The testing mechanism includes a first transmission rod, an inner connecting block, and a bearing. A heat dissipation mechanism is mounted on the inner connecting block. The heat dissipation mechanism includes a second transmission rod, one end of which is threaded to the inner wall of the inner connecting block. An air guide shroud is mounted on the outer wall of the split-type seat and the semi-circular top seat. A fixing hole is provided on the inner wall of the air guide shroud for bolt fixation. A fan blade is fixedly connected to the other end of the second transmission rod. A filter screen is fixedly connected to the inner wall of the air guide shroud. A cleaning mechanism is provided on the air guide shroud for cleaning the filter screen.

[0008] Preferably, the testing mechanism includes a first transmission rod, one end of which is threaded to the output shaft of a drive motor, and the other end of which is threaded to an inner connecting block. The outer wall of the inner connecting block is inserted into the inner side of the bearing, and the outer side of the bearing is located between the split-type seat and the semi-circular top seat. The testing mechanism is used to test the bearing.

[0009] Preferably, a split-type base body is fixedly connected to the top of the base platform by bolts, a semi-circular top seat is fixedly connected to the top of the split-type base body by bolts, and a drive motor is fixedly connected to the top of the base platform by bolts.

[0010] Preferably, the cleaning mechanism includes a connecting sleeve, which is fixedly connected to the outer wall of the second transmission rod. A front connecting rod is fixedly connected to the outer wall of the connecting sleeve, and a rear connecting rod is fixedly connected to the outer wall of the connecting sleeve. The inner wall of the front connecting rod has an arc-shaped guide groove and a strip-shaped groove. The arc-shaped guide groove is used to guide air into the strip-shaped groove when rotating, and the air blown out by the strip-shaped groove is used to blow out impurities on the filter screen. The inner wall of the rear connecting rod has a receiving groove and a through-hole groove. The receiving groove is used to receive impurities blown out of the filter screen. The inner wall of the air guide shroud has a discharge groove.

[0011] Preferably, the outer wall of the second transmission rod is rotatably connected to the inner wall of the filter screen, and the discharge groove is in communication with the outside of the air guide shroud.

[0012] Preferably, the front connecting rod is located on the side of the filter screen away from the fan blades, and is used to blow air outward from the inside of the filter screen.

[0013] Preferably, the rear connecting rod is located on the side of the filter screen near the fan blades for collecting the impurities blown down.

[0014] By employing the above technical solution, this utility model provides a bearing testing and installation platform. It possesses at least the following beneficial effects:

[0015] 1. This utility model incorporates a heat dissipation mechanism. When the drive motor is activated, it drives the first transmission rod and the inner connecting block. The inner connecting block then rotates the inner ring of the bearing to perform bearing testing. Subsequently, the inner connecting block drives the second transmission rod, which in turn drives the fan blades to blow outside air through a filter onto the bearing inside the split-type base and semi-circular top seat. This effectively reduces the temperature rise caused by frictional heat generation during bearing testing, thereby avoiding problems such as thermal expansion, lubrication degradation, and test data deviation caused by heat accumulation. This structure improves testing accuracy, extends the service life of the bearing and the device, and ensures the safety and reliability of experimental operation.

[0016] 2. This utility model incorporates a cleaning mechanism. The second transmission rod drives the connecting sleeve to rotate, which in turn drives the front and rear connecting rods to rotate. As the front connecting rod rotates, air enters the strip-shaped groove through the arc-shaped guide groove, and then blows air onto the inside of the filter screen through the strip-shaped groove. This causes impurities on the filter screen surface to enter the corresponding collection groove. Under centrifugal force, the impurities accumulate in the through-hole groove. Because the through-hole groove abuts against the inner wall of the air guide shroud, the impurities are discharged through the discharge groove after one full rotation. This design not only ensures the long-term performance of the filter screen, maintaining its ventilation efficiency, but also prevents the problem of reduced heat dissipation efficiency caused by filter screen clogging, thus maintaining the long-term stable operation of the heat dissipation mechanism. Simultaneously, it reduces the frequency of manual maintenance, improving the working efficiency and reliability of the device. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the testing mechanism in this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the air guide shroud in this utility model;

[0021] Figure 4This is a schematic diagram of the cleaning mechanism in this utility model;

[0022] Figure 5 This is a schematic diagram of the through-hole groove in this utility model;

[0023] Figure 6 This is a schematic diagram of the discharge trough in this utility model.

[0024] In the diagram: 1. Base platform; 2. Split-type seat; 3. Semi-circular top seat; 4. Drive motor; 5. Testing mechanism; 51. First transmission rod; 52. Inner connecting block; 53. Bearing; 6. Heat dissipation mechanism; 61. Second transmission rod; 62. Air guide shroud; 63. Fixing hole; 64. Fan blade; 65. Filter screen; 7. Cleaning mechanism; 71. Connecting sleeve; 72. Front connecting rod; 73. Rear connecting rod; 74. Arc-shaped guide groove; 75. Strip groove; 76. Storage groove; 77. Through hole groove; 78. Discharge groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 6 As shown, this utility model provides a technical solution: a bearing test installation platform, including a base platform 1, a split-type seat 2, a semi-circular top seat 3, and a drive motor 4. A test mechanism 5 is provided on the base platform 1. The test mechanism 5 includes a first transmission rod 51, an inner connecting block 52, and a bearing 53. A heat dissipation mechanism 6 is provided on the inner connecting block 52. The heat dissipation mechanism 6 includes a second transmission rod 61. One end of the second transmission rod 61 is threaded to the inner wall of the inner connecting block 52. An air guide shroud 62 is provided on the outer wall of the split-type seat 2 and the semi-circular top seat 3. A fixing hole 63 is provided on the inner wall of the air guide shroud 62 for fixing with bolts. A fan blade 64 is fixedly connected to the other end of the second transmission rod 61. A filter screen 65 is fixedly connected to the inner wall of the air guide shroud 62. A cleaning mechanism 7 is provided on the air guide shroud 62 for cleaning the filter screen 65.

[0027] The testing mechanism 5 includes a first transmission rod 51. One end of the first transmission rod 51 is threaded to the output shaft of the drive motor 4, and the other end of the first transmission rod 51 is threaded to an inner connecting block 52. The outer wall of the inner connecting block 52 is inserted into the inner side of the bearing 53. The outer side of the bearing 53 is located between the split-type seat 2 and the semi-circular top seat 3. The testing mechanism 5 is used to test the bearing 53. The top of the base platform 1 is fixedly connected to the split-type seat 2 by bolts. The top of the split-type seat 2 is fixedly connected to the semi-circular top seat 3 by bolts. The top of the base platform 1 is fixedly connected to the drive motor 4 by bolts.

[0028] The cleaning mechanism 7 includes a connecting sleeve 71, which is fixedly connected to the outer wall of the second transmission rod 61. A front connecting rod 72 and a rear connecting rod 73 are fixedly connected to the outer wall of the connecting sleeve 71. The inner wall of the front connecting rod 72 has an arc-shaped guide groove 74 and a strip-shaped groove 75. The arc-shaped guide groove 74 guides air into the strip-shaped groove 75 during rotation, and the air blown out of the strip-shaped groove 75 blows out impurities from the filter screen 65. The inner wall of the rear connecting rod 73 has a storage groove 7. 6. The inner wall of the rear connecting rod 73 is provided with a through-hole groove 77 and a collection groove 76 for receiving impurities blown out from the filter screen 65. The inner wall of the air guide shroud 62 is provided with a discharge groove 78. The outer wall of the second transmission rod 61 is rotatably connected to the inner wall of the filter screen 65. The discharge groove 78 is connected to the outside of the air guide shroud 62. The front connecting rod 72 is located on the side of the filter screen 65 away from the fan blade 64 and is used to blow air from the inside of the filter screen 65 to clean it. The rear connecting rod 73 is located on the side of the filter screen 65 close to the fan blade 64 and is used to collect the blown-down impurities.

[0029] Since the rear connecting rod 73 is directly opposite the strip groove 75, the wind force generated by the fan blade 64 cannot reach the position of the strip groove 75. Therefore, the airflow generated by the rotation of the arc-shaped guide groove 74 can be output through the strip groove 75, thereby blowing away the impurities on the filter screen 65.

[0030] When the rear connecting rod 73 rotates, the impurities in the collection groove 76 inside the rear connecting rod 73 also rotate, causing the impurities in the collection groove 76 to accumulate at the position of the through hole groove 77 under the action of centrifugal force. The through hole groove 77 abuts against the inner wall of the air guide shroud 62. During one rotation, impurities will accumulate in the through hole groove 77 until it rotates to the position of the discharge groove 78. At this time, the through hole groove 77 and the discharge groove 78 are exactly aligned, and the impurities in the through hole groove 77 are discharged under the action of centrifugal force.

[0031] In use, the bearing testing platform of this utility model activates the drive motor 4, which drives the first transmission rod 51 and the inner connecting block 52. The inner connecting block 52 rotates the inner ring of the bearing 53 to perform the bearing 53 test. Then, the inner connecting block 52 drives the second transmission rod 61, which in turn drives the fan blades 64 to blow outside air through the filter screen 65 onto the bearing 53 inside the split-type base 2 and the semi-circular top seat 3. This effectively reduces the temperature rise caused by frictional heat during the bearing 53 test, thus avoiding problems such as thermal expansion, lubrication degradation, and test data deviation caused by heat accumulation. This structure improves testing accuracy, extends the service life of the bearing 53 and the device, and ensures the safety and reliability of the experimental operation.

[0032] Simultaneously, the second transmission rod 61 drives the connecting sleeve 71 to rotate, which in turn drives the front connecting rod 72 and the rear connecting rod 73 to rotate. When the front connecting rod 72 rotates, air enters the strip groove 75 through the arc-shaped guide groove 74, and then blows air onto the inside of the filter screen 65 through the strip groove 75. This causes impurities on the surface of the filter screen 65 to enter the corresponding collection groove 76. Then, under the action of centrifugal force, the impurities accumulate at the through-hole groove 77. Since the through-hole groove 77 is in contact with the inner wall of the air guide shroud 62, the impurities are discharged through the discharge groove 78 after one rotation. This design not only ensures the long-term performance of the filter screen 65 and maintains its ventilation efficiency, but also prevents the problem of reduced heat dissipation efficiency caused by filter screen 65 clogging, thereby maintaining the long-term stable operation of the heat dissipation mechanism 6, while reducing the frequency of manual maintenance and improving the working efficiency and reliability of the device.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bearing experiment installation platform, comprising a base platform (1), a split seat body (2), a semicircular top seat (3) and a driving motor (4), characterized in that: The base platform (1) is provided with a test mechanism (5), the test mechanism (5) includes a first transmission rod (51), an inner connecting block (52), a bearing (53), the inner connecting block (52) is provided with a heat dissipation mechanism (6), the heat dissipation mechanism (6) includes Second transmission rod (61), one end of the second transmission rod (61) is threadedly connected on the inner wall of the inner connecting block (52), the outer wall of the split seat body (2), the semicircular top seat (3) is provided with a wind deflector (62), the inner wall of the wind deflector (62) is provided with a fixing hole (63), the fixing hole (63) is used for fixing by bolt, the other end of the second transmission rod (61) is fixedly connected with a fan blade (64), the inner wall of the wind deflector (62) is fixedly connected with a filter screen (65); The wind deflector (62) is provided with a cleaning mechanism (7), and the cleaning mechanism (7) is used for cleaning the filter screen (65).

2. The bearing test mounting platform of claim 1, wherein: The test mechanism (5) includes a first transmission rod (51), one end of the first transmission rod (51) is threadedly connected on the output shaft of the driving motor (4), the other end of the first transmission rod (51) is threadedly connected with an inner connecting block (52), the outer wall of the inner connecting block (52) is inserted with the inner side of the bearing (53), the outer side of the bearing (53) is located between the split seat body (2) and the semicircular top seat (3), and the test mechanism (5) is used for testing the bearing (53).

3. The bearing test mounting platform of claim 1, wherein: The top of the base platform (1) is fixedly connected with a split seat body (2) through a bolt, the top of the split seat body (2) is fixedly connected with a semicircular top seat (3) through a bolt, and the top of the base platform (1) is fixedly connected with a driving motor (4) through a bolt.

4. The bearing test rig platform of claim 1, wherein: The cleaning mechanism (7) includes a connecting sleeve (71), the connecting sleeve (71) is fixedly connected on the outer wall of the second transmission rod (61), the outer wall of the connecting sleeve (71) is fixedly connected with a front connecting rod (72), the outer wall of the connecting sleeve (71) is fixedly connected with a rear connecting rod (73), the inner wall of the front connecting rod (72) is provided with an arc-shaped guide groove (74), the inner wall of the front connecting rod (72) is provided with a strip-shaped groove (75), the arc-shaped guide groove (74) is used for guiding air into the strip-shaped groove (75) when rotating, the air blown out of the strip-shaped groove (75) is used for blowing out impurities on the filter screen (65), the inner wall of the rear connecting rod (73) is provided with a receiving groove (76), and the inner wall of the rear connecting rod (73) is provided with a through hole groove (77), the receiving groove (76) is used for receiving impurities blown out of the filter screen (65), and the inner wall of the wind deflector (62) is provided with a discharge groove (78).

5. The bearing test rig platform of claim 4, wherein: The outer wall of the second transmission rod (61) is rotatably connected with the inner wall of the filter screen (65), and the discharge groove (78) communicates with the outside of the wind deflector (62).

6. The bearing test rig platform of claim 4, wherein: The front connecting rod (72) is arranged on the side, away from the fan blade (64), of the filter screen (65), and is used for air cleaning from the inner side of the filter screen (65).

7. The bearing test rig platform of claim 6, wherein: The rear connecting rod (73) is arranged on the side of the filter screen (65) close to the fan blade (64) for collecting the blown impurities.

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