Creep torque measuring device for bearing outer ring

Abstract

The utility model discloses a bearing outer ring creep moment measuring device, which comprises a bottom plate, a supporting table and a test table, the supporting table and the test table are arranged on the bottom plate at intervals, the bearing device also comprises a bearing shaft, two ends of the bearing shaft respectively penetrate into the supporting table and the test table, one end penetrating into the supporting table is sleeved with a supporting bearing, and the other end of the bearing shaft is sleeved with a bearing sleeve. A bearing to be measured is sleeved at one end of the bearing shaft penetrating into the test board, a test cover plate is coaxially sleeved at one end of the bearing shaft penetrating into the test board, and an end portion of the test cover plate is fixed with an outer ring of the bearing to be measured. According to the bearing outer ring creep torque measuring device provided by the utility model, through the arrangement of the bottom plate, the supporting table and the test table, a device for testing the creep torque of the bearing outer ring can be effectively formed.

Description

Technical Field

[0001] This utility model relates to a measuring device, and more specifically to a device for measuring the creep torque of the outer ring of a bearing. Background Technology

[0002] Currently, outer ring creep is a common phenomenon in bearing failure. Research on outer ring creep in my country's bearing industry is not yet in-depth. Some theoretical studies have shown that the rolling elements generate creep torque on the outer ring when the bearing is running, and the creep torque increases with the increase of bearing load. Therefore, the calculation of the outer ring creep torque is particularly important. At present, there is no professional equipment in the existing technology to calculate the outer ring creep torque of bearings. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bearing outer ring creep torque measuring device that can effectively measure the creep torque of the bearing outer ring.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bearing outer ring creep torque measuring device, comprising a base plate, a support platform, and a test platform, wherein the support platform and the test platform are installed on the base plate at intervals. The device is characterized by further comprising a load-bearing shaft, with both ends of the load-bearing shaft passing through the support platform and the test platform respectively. One end of the load-bearing shaft passing through the support platform is fitted with a support bearing, and the other end of the load-bearing shaft passing through the test platform is fitted with the bearing to be measured. A test cover plate is coaxially fitted at the end of the load-bearing shaft passing through the test platform. The end of the test cover plate is fixed to the outer ring of the bearing to be measured, so that the creep torque during outer ring rotation can be read by rotating the test cover plate with a torque wrench.

[0005] As a further improvement of this utility model, the test cover plate includes a sleeve shaft and an end plate. The sleeve shaft is sleeved on the load-bearing shaft and has a hexagonal prism structure. The end plate is coaxially fixed on the end of the sleeve shaft facing the bearing to be measured. A test groove is provided on the end of the end plate facing away from the sleeve shaft so that an abutment edge is formed on the end face of the end plate. The abutment edge is fixed to the outer ring of the bearing to be measured.

[0006] As a further improvement of this utility model, a locking baffle is provided on the test platform at the position relative to the load-bearing shaft. A cylindrical groove is opened on one end face of the locking baffle relative to the load-bearing shaft so that the end face of the locking baffle forms a mating edge structure. The locking baffle is fixed on the load-bearing shaft by means of bolts passing through the locking baffle and threaded connection with the end face of the load-bearing shaft, so that the abutment edge and the mating edge cooperate to clamp the outer ring of the bearing to be measured.

[0007] As a further improvement of this utility model, an auxiliary bearing is coaxially sleeved in the middle of the load-bearing shaft, and an external load is applied to the auxiliary bearing. Two shoulders are coaxially sleeved on the load-bearing shaft at positions relative to the two ends of the auxiliary bearing, and the ends of the two shoulders abut against the two ends of the auxiliary bearing.

[0008] As a further improvement of this utility model, a semi-circular groove is provided on the top of the support platform, and the support bearing is sleeved on the end of the load-bearing shaft and placed in the semi-circular groove. A test hole is provided on the top of the test platform, and the bearing to be measured is sleeved on the end of the load-bearing shaft and embedded in the test hole. The outer ring of the bearing to be measured abuts against the wall of the test hole.

[0009] The beneficial effects of this invention are that the creep torque during outer ring rotation can be read by rotating the cover plate with a torque wrench, and different loads can be applied to the auxiliary bearing using a press during testing. It provides a method for measuring the creep torque of the bearing outer ring, offering a practical basis for theoretical research on bearing outer ring creep and reducing the risk of outer ring creep for customers. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the bearing outer ring creep torque measuring device of this utility model. Detailed Implementation

[0011] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0012] Reference Figure 1 As shown, this embodiment of a bearing outer ring creep torque measuring device includes a base plate 1, a support platform 2, and a test platform 3. The support platform 2 and the test platform 3 are installed on the base plate 1 at intervals. The device is characterized by further including a load-bearing shaft 4, with both ends of the load-bearing shaft 4 passing through the support platform 2 and the test platform 3 respectively. One end of the load-bearing shaft 4 passing through the support platform 2 is fitted with a support bearing 5, and the other end of the load-bearing shaft 4 passing through the test platform 3 is fitted with the bearing to be measured. A test cover plate 6 is coaxially fitted at the end of the load-bearing shaft 4 passing through the test platform 3. The end of the test cover plate 6 is fixed to the outer ring of the bearing to be measured, so that the creep torque during outer ring rotation can be read by rotating the test cover plate 6 with a torque wrench. Therefore, this embodiment can effectively measure the creep torque during outer ring rotation by directly rotating the test cover plate 6 with a torque wrench.

[0013] In the measurement process of the above-mentioned measuring device, this embodiment adopts a combination structure of sleeve shaft 61 and end plate 62 to realize cover plate 6. The sleeve shaft 61 adopts a hexagonal prism structure to facilitate the turning of torque wrench. Then, by opening a test groove on the end plate 62 to form an abutment edge, it can be effectively ensured that the end plate 62 can only drive the outer ring of the bearing to be measured to rotate, without affecting the inner ring and cage of the bearing to be measured. Furthermore, in this embodiment, a locking baffle 7 is fixed on the end face of the load-bearing shaft 4. The outer ring of the bearing to be measured can be clamped and fixed by the cooperation of the locking baffle 7 and the abutment edge, so as to better realize the measurement of the creep torque of the outer ring of the bearing without affecting the structural strength of the outer ring of the bearing to be measured.

[0014] To better simulate the actual working conditions of the bearing, an auxiliary bearing 8 is provided in this embodiment. An external load is applied to the auxiliary bearing 8 and then transmitted to the load-bearing shaft 4, and then to the bearing to be measured, so as to effectively apply the load. Two shoulders 9 are coaxially sleeved at the positions of the load-bearing shaft 4 relative to the two ends of the auxiliary bearing 8. The ends of the two shoulders 9 abut against the two ends of the auxiliary bearing 8. The two shoulders 9 can be used to restrict the axial sliding of the auxiliary bearing 8, thereby ensuring the reliability of the load application.

[0015] In this embodiment, the top of the support platform 2 is provided with a semi-circular groove. The support bearing 5 is sleeved on the end of the load-bearing shaft 4 and placed in the semi-circular groove. The top of the test platform 3 is provided with a test hole. The bearing to be measured is sleeved on the end of the load-bearing shaft 4 and embedded in the test hole. The outer ring of the bearing to be measured abuts against the wall of the test hole, which facilitates the disassembly and assembly of the bearing to be measured. Specifically, the support bearing 5 and the bearing to be measured are first sleeved on the load-bearing shaft 4. Then, the bearing to be measured is aligned with the test hole and inserted. Finally, the support bearing 5 is placed in the semi-circular groove to complete the disassembly and assembly of the bearing to be measured, effectively increasing the measurement efficiency.

[0016] In summary, the bearing outer ring creep torque measuring device of this embodiment can effectively measure the creep torque of the bearing outer ring.

[0017] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bearing outer ring creep torque measuring device, comprising a base plate (1), a support platform (2), and a test platform (3), wherein the support platform (2) and the test platform (3) are mounted on the base plate (1) at intervals, characterized in that: It also includes a load-bearing shaft (4), with both ends of the load-bearing shaft (4) inserted into the support platform (2) and the test platform (3) respectively. One end inserted into the support platform (2) is fitted with a support bearing (5), and the other end inserted into the test platform (3) is fitted with a bearing to be measured. One end of the load-bearing shaft (4) inserted into the test platform (3) is coaxially fitted with a test cover plate (6). The end of the test cover plate (6) is fixed to the outer ring of the bearing to be measured, so that the creep torque when the outer ring rotates can be read by rotating the test cover plate (6) with a torque wrench.

2. The bearing outer ring creep torque measuring device according to claim 1, characterized in that: The test cover plate (6) includes a sleeve shaft (61) and an end plate (62). The sleeve shaft (61) is sleeved on the load-bearing shaft (4). The sleeve shaft (61) has a hexagonal prism structure. The end plate (62) is coaxially fixed on the end of the sleeve shaft (61) facing the bearing to be measured. The end of the end plate (62) facing away from the sleeve shaft (61) has a test groove so that an abutment edge is formed on the end face of the end plate (62). The abutment edge is fixed to the outer ring of the bearing to be measured.

3. The bearing outer ring creep torque measuring device according to claim 2, characterized in that: The test bench (3) is provided with a locking baffle (7) at a position relative to the load-bearing shaft (4). A cylindrical groove is provided on one end face of the locking baffle (7) relative to the load-bearing shaft (4) so ​​that the end face of the locking baffle (7) forms a mating edge structure. The locking baffle (7) is fixed on the load-bearing shaft (4) by means of bolts passing through the locking baffle (7) and threaded connection with the end face of the load-bearing shaft (4), so that the abutment edge and the mating edge cooperate to clamp the outer ring of the bearing to be measured.

4. The bearing outer ring creep torque measuring device according to claim 3, characterized in that: An auxiliary bearing (8) is coaxially sleeved in the middle of the load-bearing shaft (4). An external load is applied to the auxiliary bearing (8). Two shoulders (9) are coaxially sleeved at the two ends of the load-bearing shaft (4) relative to the two ends of the auxiliary bearing (8). The ends of the two shoulders (9) abut against the two ends of the auxiliary bearing (8).

5. The bearing outer ring creep torque measuring device according to claim 4, characterized in that: The top of the support platform (2) is provided with a semi-circular groove. The support bearing (5) is sleeved on the end of the load-bearing shaft (4) and placed in the semi-circular groove. The top of the test platform (3) is provided with a test hole. The bearing to be measured is sleeved on the end of the load-bearing shaft (4) and embedded in the test hole. The outer ring of the bearing to be measured abuts against the wall of the test hole.

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