Measuring device for bearing load

Abstract

The utility model relates to the field of bearing measurement, in particular to a measuring device for bearing load. Comprising a supporting assembly, two axial loading assemblies and a radial loading assembly are arranged on the supporting assembly, and the two axial loading assemblies and the radial loading assembly act on a testing assembly; the technical problem that an existing bearing load measuring device cannot measure bearings with different sizes one by one is solved.

Description

Technical Field

[0001] The utility model relates to the field of bearing measurement, in particular to a measuring device for bearing load. Background Art

[0002] A bearing load measuring device is a device used to measure the forces and loads borne by a bearing during operation. It can help engineers and researchers better understand the performance of bearings under different working conditions. This device usually includes a variety of sensors and measuring equipment to accurately monitor and record the various loads borne by the bearing, including radial loads (forces perpendicular to the axis) and axial loads (forces along the axis).

[0003] The bearing load measuring device needs to fix the bearing during measurement and apply axial or radial load. Most existing bearing load measuring devices can only measure bearings of one specification and size. When bearings of multiple sizes need to be measured one by one, it is difficult to accurately fix the test bearing due to the curvature and size limitations of the fixing device. Utility Model Content

[0004] The utility model provides a measuring device for bearing load, which solves the technical problem that the existing bearing load measuring device cannot measure bearings of different sizes one by one.

[0005] A device for measuring bearing load, comprising a support assembly, on which two groups of axial loading assemblies and one group of radial loading assemblies are arranged, the support assembly comprising a base, a top surface of the base is provided with a groove, opposite side walls of the base are provided with symmetrical transverse grooves, the bottom surface of the transverse groove and the bottom surface of the groove are located in the same horizontal plane, a first support plate and a second support plate are symmetrically arranged on both sides of the transverse groove, a main shaft is penetrated between the first support plate and the second support plate, the axial direction of the main shaft is distributed in a stepped shape, and a test assembly is penetrated on the main shaft between the first support plate and the second support plate;

[0006] The test assembly comprises a bearing mounting seat, the inner ring of the bearing mounting seat is distributed in opposite steps corresponding to the main shaft, the minimum diameter of the inner ring of the bearing mounting seat is larger than the maximum diameter of the main shaft, a test bearing is sleeved between the main shaft and the bearing mounting seat, a fixing block sleeved on the main shaft is provided on the front side wall of the test bearing, a stopper sleeved on the main shaft is provided on the rear side wall of the test bearing, the front end of the stopper is distributed in steps corresponding to the main shaft and the inner ring of the bearing mounting seat, and the rear end of the stopper is arranged against the inner side wall of the second support plate;

[0007] Two groups of axial loading components are arranged between the bearing mounting seat and the first supporting plate, and the two groups of axial loading components are symmetrically arranged relative to the main axis. A group of radial loading components is arranged at the bottom of the bearing mounting seat. The two groups of axial loading components and the one group of radial loading components have the same structure and both include hydraulic cylinders. The hydraulic cylinders of the two groups of axial loading components are arranged on the inner side wall of the first supporting plate, and the hydraulic cylinders of the radial loading components are arranged in the transverse groove. The end of each hydraulic cylinder is connected to a hydraulic rod, and the end of each hydraulic rod is a spherical structure. The end of each hydraulic rod is covered with a clamping block, and the back of each clamping block is provided with a pressure sensor. The pressure sensors of the two groups of axial loading components are arranged on the outer side wall of the bearing mounting seat and are symmetrically arranged relative to the main axis. The pressure sensor of the radial loading component is arranged at the bottom of the bearing mounting seat.

[0008] Furthermore, a first support bearing is provided at a connection between the main shaft and the first support plate, and a second support bearing is provided at a connection between the main shaft and the second support plate.

[0009] Furthermore, a sliding block is provided at the bottom of the radial loading assembly, and the sliding block is protruded relative to the transverse grooves on both sides of the base.

[0010] Furthermore, the bottoms of the two groups of axial loading assemblies are fixed to the inner side wall of the first support plate by a plurality of bolts.

[0011] Furthermore, each of the engaging blocks is provided with a plurality of limit blocks, and the bearing mounting seat is provided with notches corresponding to the plurality of limit blocks.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model adopts a combination of a support component and a test component to achieve the function of measuring bearings of different sizes one by one, and is conducive to more stable support of the test bearing when a load is applied. Specifically, the axial direction of the main shaft is distributed in a stepped manner, and the inner ring of the bearing mounting seat corresponds to the main shaft in an opposite stepped distribution. The front end of the stopper corresponds to the main shaft and the inner ring of the bearing mounting seat in a stepped distribution. This stepped distribution allows the main shaft to pass through test bearings of various sizes. The width of the step matches the width of the test bearing, and the height of the step realizes the limitation of test bearings of different sizes. The rear end of the stopper is against the inner wall of the second support plate to fix the test bearing together and increase the stability of the test bearing.

[0014] 2. The utility model adopts a combination of two groups of axial loading components and one group of radial loading components, which can realize the application of axial and radial loads to the test bearing. The two groups of axial loading components and one group of radial loading components can apply loads independently or collaboratively, simulating the measurement of dynamic and static performances of the test bearing under complex conditions. The snap-fit ​​block is conducive to transferring the load to the bearing mounting seat, so that the test bearing bears the load evenly. A pressure sensor is arranged between the snap-fit ​​block and the bearing mounting seat for measuring the size of the load.

[0015] 3. A slider is provided at the bottom of the radial loading assembly of the utility model, which is conducive to moving the radial loading assembly. Since the axial direction of the main shaft is distributed in a stepped manner, the position of the test bearing will be distributed along the main shaft. The radial loading assembly can be moved along the main shaft direction through the slider to match the snap-fit ​​block of the radial loading assembly with the bottom of the bearing mounting seat.

[0016] 4. In the utility model, a plurality of limit blocks are arranged on each engaging block, the engaging block and the limit blocks are arranged integrally, and a notch is opened on the bearing mounting seat corresponding to the plurality of limit blocks, so as to increase the stability of the connection between the engaging block and the bearing mounting seat, prevent the engaging block from rotating, and reduce the loss of load transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0020] Figure 4 It is a cross-sectional view from another perspective of the utility model.

[0021] Figure numerals: 1. Support assembly; 11. Base; 12. Groove; 13. Horizontal groove; 14. First support plate; 15. Second support plate; 16. Main shaft; 17. First support bearing; 18. Second support bearing; 2. Axial loading assembly; 21. Hydraulic cylinder; 22. Hydraulic rod; 23. Engaging block; 24. Pressure sensor; 25. Slider; 26. Limit block; 27. Notch; 3. Radial loading assembly; 4. Test assembly; 41. Bearing mounting seat; 42. Test bearing; 43. Fixing block; 44. Stop block. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1 , 2 As shown in Figure 4, this embodiment provides a device for measuring bearing load, including a support component 1, on which two groups of axial loading components 2 and one group of radial loading components 3 are arranged, the support component 1 includes a base 11, the top surface of the base 11 is provided with a groove 12, and the opposite side walls of the base 11 are provided with symmetrical transverse grooves 13, the bottom surface of the transverse groove 13 and the bottom surface of the groove 12 are located in the same horizontal plane, the radial loading component 3 can move in the groove 12, the two sides of the transverse groove 13 are symmetrically provided with a first support plate 14 and a second support plate 15, the first support plate 14 and the second support plate 15 are both vertically arranged relative to the bottom surface of the transverse groove 13, a main shaft 16 is penetrated between the first support plate 14 and the second support plate 15, the main shaft 16 can move in the axial direction, the axial direction of the main shaft 16 is distributed in a stepped manner, and a test component 4 is penetrated on the main shaft 16 between the first support plate 14 and the second support plate 15.

[0026] like Figure 1 , 2As shown in , 3 and 4, in this embodiment, the test assembly 4 includes a bearing mounting seat 41, the inner ring of the bearing mounting seat 41 is distributed in opposite steps corresponding to the main shaft 16, the minimum diameter of the inner ring of the bearing mounting seat 41 is larger than the maximum diameter of the main shaft 16, a test bearing 42 is sleeved between the main shaft 16 and the bearing mounting seat 41, the front side wall of the test bearing 42 is provided with a fixing block 43 sleeved on the main shaft 16, the fixing block 43 is used to further limit and support the bearing mounting seat 41, the rear side wall of the test bearing 42 is provided with a stopper 44 sleeved on the main shaft 16, the front end of the stopper 44 is distributed in steps corresponding to the main shaft 16 and the inner ring of the bearing mounting seat 41, and the rear end of the stopper 44 is arranged against the inner wall of the second support plate 15. The utility model adopts a combination of a support component 1 and a test component 4 to achieve the function of measuring bearings of different sizes one by one, and is conducive to more stable support of the test bearing 42 when a load is applied. Specifically, the axial direction of the main shaft 16 is distributed in a stepped manner, and the inner ring of the bearing mounting seat 41 corresponds to the main shaft 16 in an opposite stepped distribution, and the front end of the stopper 44 corresponds to the main shaft 16 and the inner ring of the bearing mounting seat 41 in a stepped distribution. This stepped distribution allows the main shaft 16 to pass through test bearings 42 of various sizes. The width of the step matches the width of the test bearing 42, and the height of the step realizes the limitation of test bearings 42 of different sizes. The rear end of the stopper 44 is against the inner wall of the second support plate 15, and together fixes the test bearing 42 to increase the stability of the test bearing 42.

[0027] like Figure 1 , 2As shown in Figures 3 and 4, in this embodiment, two groups of axial loading components 2 are arranged between the bearing mounting seat 41 and the first support plate 14, and the two groups of axial loading components 2 are symmetrically arranged relative to the main shaft 16. A group of radial loading components 3 is arranged at the bottom of the bearing mounting seat 41. The two groups of axial loading components 2 and the one group of radial loading components 3 have the same structure and both include a hydraulic cylinder 21. The hydraulic cylinders 21 of the two groups of axial loading components 2 are arranged on the inner side wall of the first support plate 14, and the hydraulic cylinders 21 of the radial loading components 3 are arranged in the transverse groove 13. The ends of each of the hydraulic cylinders 21 are connected to a hydraulic rod 22. The hydraulic rod 22 contracts under the action of the hydraulic cylinder 21 to provide a load during measurement. The ends of each of the hydraulic rods 22 are spherical structures. The parts are all covered with a snap-fit ​​block 23, and the back of each snap-fit ​​block 23 is provided with a pressure sensor 24. The pressure sensors 24 of the two groups of axial loading components 2 are all arranged on the outer wall of the bearing mounting seat 41, and are symmetrically arranged relative to the main shaft 16. The pressure sensor 24 of the radial loading component 3 is arranged at the bottom of the bearing mounting seat 41; the utility model adopts a combination of two groups of axial loading components 2 and one group of radial loading components 3, which can apply loads independently or collaboratively, and simulate the dynamic and static performances of the test bearing 42 under complex conditions. The snap-fit ​​block 23 is conducive to transferring the load to the bearing mounting seat 41, so that the test bearing 42 bears the load evenly. A pressure sensor 24 is arranged between the snap-fit ​​block 23 and the bearing mounting seat 41 for measuring the size of the load.

[0028] like Figure 1 As shown, in this embodiment, a first support bearing 17 is provided at the connection between the main shaft 16 and the first support plate 14, and a second support bearing 18 is provided at the connection between the main shaft 16 and the second support plate 15. The main shaft 16 can move axially and can rotate, so as to be adjusted according to the position of the stop block 44 and the test bearing 42.

[0029] like Figure 1 , 4 As shown, in this embodiment, a slider 25 is provided at the bottom of the radial loading component 3, and the slider 25 is protruded relative to the transverse groove 13 on both sides of the base 11; it is convenient to move the radial loading component 3. Since the axial direction of the main shaft 16 is distributed in a stepped manner, the position of the test bearing 42 will be distributed along the main shaft 16. The radial loading component 3 can be moved along the direction of the main shaft 16 through the slider 25, so that the locking block 23 of the radial loading component 3 matches the bottom of the bearing mounting seat 41.

[0030] like Figure 2As shown, in this embodiment, the bottoms of the two groups of axial loading assemblies 2 are fixed to the inner wall of the first support plate 14 by a plurality of bolts to increase the stability of the connection.

[0031] like Figure 3 As shown, in this embodiment, a plurality of limit blocks 26 are arranged on each of the snap-fit ​​blocks 23, and notches 27 are provided on the bearing mounting seat 41 corresponding to the plurality of limit blocks 26; the snap-fit ​​blocks 23 and the limit blocks 26 are integrally arranged to increase the stability of the connection between the snap-fit ​​blocks 23 and the bearing mounting seat 41, while preventing the snap-fit ​​blocks 23 from rotating, thereby reducing the loss of load transmission.

[0032] The specific operating principle is:

[0033] According to the size of the test bearing 42, the test bearing 42 is placed in the stepped inner ring corresponding to the bearing mounting seat 41, and the main shaft 16 passes through the first support plate 14, the fixing block 43, the test bearing 42, the stopper 44 and the second support plate 15 in sequence. The axial direction of the main shaft 16 is distributed in a stepped manner, and the inner ring of the bearing mounting seat 41 corresponds to the main shaft 16 in an opposite stepped distribution, and the front end of the stopper 44 corresponds to the main shaft 16 and the inner ring of the bearing mounting seat 41 in a stepped distribution. This stepped distribution allows the main shaft 16 to pass through a variety of test bearings of different sizes. 42, the width of the step matches the width of the test bearing 42, and the height of the step realizes the limitation of test bearings 42 of different sizes. The rear end of the stop block 44 is against the inner wall of the second support plate 15, and the test bearing 42 is fixed together to increase the stability of the test bearing 42. Since the axial direction of the main shaft 16 is distributed in a stepped shape, the position of the test bearing 42 will be distributed along the main shaft 16. The radial loading assembly 3 can be moved along the direction of the main shaft 16 through the slider 25, so that the snap-fit ​​block 23 of the radial loading assembly 3 matches the bottom of the bearing mounting seat 41.

[0034] Two groups of axial loading components 2 and one group of radial loading components 3 can apply loads independently or collaboratively to simulate and measure the dynamic and static performances of the test bearing 42 under complex conditions. The snap-fit ​​block 23 transfers the load to the bearing mounting seat 41 so that the test bearing 42 bears the load evenly. A pressure sensor 24 is provided between the snap-fit ​​block 23 and the bearing mounting seat 41 to measure the magnitude of the load.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A device for measuring bearing load, characterized in that: The invention comprises a support assembly, on which two groups of axial loading assemblies and one group of radial loading assemblies are arranged, the support assembly comprises a base, a top surface of the base is provided with a groove, opposite side walls of the base are provided with symmetrical transverse grooves, the bottom surface of the transverse groove and the bottom surface of the groove are located in the same horizontal plane, a first support plate and a second support plate are symmetrically arranged on both sides of the transverse groove, a main shaft is arranged between the first support plate and the second support plate, the axial direction of the main shaft is distributed in a stepped shape, and a test assembly is arranged on the main shaft between the first support plate and the second support plate; The test assembly comprises a bearing mounting seat, the inner ring of the bearing mounting seat is distributed in opposite steps corresponding to the main shaft, the minimum diameter of the inner ring of the bearing mounting seat is larger than the maximum diameter of the main shaft, a test bearing is sleeved between the main shaft and the bearing mounting seat, a fixing block sleeved on the main shaft is provided on the front side wall of the test bearing, a stopper sleeved on the main shaft is provided on the rear side wall of the test bearing, the front end of the stopper is distributed in steps corresponding to the main shaft and the inner ring of the bearing mounting seat, and the rear end of the stopper is arranged against the inner side wall of the second support plate; Two groups of axial loading components are arranged between the bearing mounting seat and the first supporting plate, and the two groups of axial loading components are symmetrically arranged relative to the main axis. A group of radial loading components is arranged at the bottom of the bearing mounting seat. The two groups of axial loading components and the one group of radial loading components have the same structure and both include hydraulic cylinders. The hydraulic cylinders of the two groups of axial loading components are arranged on the inner side wall of the first supporting plate, and the hydraulic cylinders of the radial loading components are arranged in the transverse groove. The end of each hydraulic cylinder is connected to a hydraulic rod, and the end of each hydraulic rod is a spherical structure. The end of each hydraulic rod is covered with a clamping block, and the back of each clamping block is provided with a pressure sensor. The pressure sensors of the two groups of axial loading components are arranged on the outer side wall of the bearing mounting seat and are symmetrically arranged relative to the main axis. The pressure sensor of the radial loading component is arranged at the bottom of the bearing mounting seat.

2. A bearing load measuring device according to claim 1, characterized in that: A first support bearing is disposed at a connection between the main shaft and the first support plate, and a second support bearing is disposed at a connection between the main shaft and the second support plate.

3. A bearing load measuring device according to claim 1, characterized in that: A sliding block is arranged at the bottom of the radial loading assembly, and the sliding block is arranged to protrude relative to the transverse grooves on both sides of the base.

4. A device for measuring bearing load according to claim 1, characterized in that: The bottoms of the two groups of axial loading assemblies are fixed to the inner side wall of the first support plate by a plurality of bolts.

5. A bearing load measuring device according to claim 1, characterized in that: A plurality of limit blocks are arranged on each of the engaging blocks, and notches are provided on the bearing mounting seat corresponding to the plurality of limit blocks.

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