Torque detection device of plane thrust bearing

Abstract

The utility model belongs to the technical field of detection, particularly relates to a torque detection device for a plane thrust bearing, and aims to solve the problem that when the plane thrust bearing is subjected to torque detection on a bearing torsion testing machine, a fixed seat is generally required to be replaced according to the size of the plane thrust bearing to be detected to ensure that the torque cannot be detected in the detection process. In order to solve the problems that a fixed ring at the bottom of a plane thrust bearing is still, so that the plane thrust bearing is inconvenient and tedious to use, the utility model provides the following scheme: the plane thrust bearing torsion testing machine comprises a bearing torsion testing machine body, a lifting plate is arranged in the bearing torsion testing machine body, and the lifting plate is lifted through a hydraulic cylinder fixedly mounted at the top of the bearing torsion testing machine body; and a rotating seat is rotationally mounted in the center of the bottom of the lifting plate. When the plane thrust bearing fixing device is used, the plane thrust bearing fixing device can be suitable for plane thrust bearings of different sizes through the design of the inner wall fixing assembly and the outer wall fixing assembly, and universality and flexibility of the plane thrust bearing fixing device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a torque detection device for a planar thrust bearing. Background Art

[0002] A planar thrust bearing is a unit composed of a planar cage assembly with needle rollers or cylindrical rollers or steel balls and a planar washer, which can bear high axial loads and high stiffness. And the device for detecting the torque of a planar thrust bearing is usually a thrust bearing torsion testing machine, which adopts a vertical structure and conforms to the operation mode of the thrust bearing itself, and can conduct tests on products for detecting the torque of the applied axial force.

[0003] At present, when detecting the torque of a planar thrust bearing on a bearing torsion testing machine, it is usually necessary to replace the fixing seat according to the size of the planar thrust bearing to be measured to ensure that the fixing ring at the bottom of the planar thrust bearing remains stationary during the detection process, resulting in inconvenient use and being rather cumbersome.

[0004] In view of the above problems, the utility model document proposes a torque detection device for a planar thrust bearing. Content of the Utility Model

[0005] The utility model provides a torque detection device for a planar thrust bearing, which solves the disadvantages in the prior art that when detecting the torque of a planar thrust bearing on a bearing torsion testing machine, it is usually necessary to replace the fixing seat according to the size of the planar thrust bearing to be measured to ensure that the fixing ring at the bottom of the planar thrust bearing remains stationary during the detection process, resulting in inconvenient use and being rather cumbersome.

[0006] The utility model provides the following technical solutions:

[0007] A torque detection device for a planar thrust bearing, comprising:

[0008] A bearing torsion testing machine body, in which a lifting plate is arranged. The lifting plate is lifted by a hydraulic cylinder fixedly installed at the top of the bearing torsion testing machine body. A rotating seat is rotatably installed at the center of the bottom of the lifting plate. A driving motor for driving the rotating seat to rotate is fixedly installed at the top of the lifting plate. A torque sensor used in a supporting manner is arranged at the bottom of the rotating seat. A pressing plate for driving the free ring at the top of the planar thrust bearing to rotate is arranged at the bottom of the torque sensor. A console is arranged directly below the pressing plate, and the bottom of the console is fixedly arranged on the inner wall of the frame of the bearing torsion testing machine body;

[0009] An inner wall fixing component, which is arranged on the console and is used for fixing the inner wall of the fixing ring at the bottom of planar thrust bearings of different sizes;

[0010] The outer wall fixing component is arranged on the operation table and is used to fix the outer wall of the bottom fixing ring of the planar thrust bearing with different sizes to further ensure the accuracy of the detection data.

[0011] In a possible design, the inner wall fixing component includes an inner ring fixedly arranged at the center of the operation table. Three sliding rods are slidably connected to the inner ring in an annular array, and a top holding arc plate is fixedly arranged at the outer end of the sliding rod.

[0012] In a possible design, an electric push rod for synchronously driving the three sliding rods to spread is fixedly installed at the bottom of the inner ring. An installation groove for embedding the electric push rod is arranged at the top of the operation table. Hemispherical blocks for improving the smoothness of pushing are fixedly arranged at the output end of the electric push rod and the inner ends of the three sliding rods.

[0013] In a possible design, the outer wall fixing component includes an outer ring fixedly arranged at the top of the operation table. The center points of the outer ring and the inner ring are the same. A plurality of cylinders are fixedly installed on the outer wall of the outer ring in an annular array. The output end of the cylinder penetrates the inner wall of the outer ring and a corresponding clamping arc plate is fixedly arranged.

[0014] In a possible design, both the top holding arc plate and the clamping arc plate are made of hard rubber material with high friction.

[0015] In a possible design, a plurality of convex strips for increasing friction are fixedly arranged at the bottom of the pressure plate in an annular array.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present utility model.

[0017] The working principle and usage process of this technical solution are as follows:

[0018] During use, place the planar thrust bearing to be detected on the operation table, ensure that the center of the bottom fixing ring of the bearing is aligned with the centers of the inner ring and the outer ring, and then start the electric push rod. Push the three sliding rods to slide outwards through the electric push rod, so that the top holding arc plate closely adheres to and fixes the inner wall of the bottom fixing ring of the bearing from the inside. At the same time, start the cylinder to make the corresponding clamping arc plate approach the outer wall of the bottom fixing ring of the bearing from the outside until the clamping arc plate closely adheres to and fixes the outer wall.

[0019] Next, adjust the height of the lifting plate through the hydraulic cylinder to make the pressure plate press the top free ring of the flat thrust bearing. Confirm that the torque sensor is correctly connected and calibrated. After starting the driving motor, drive the torque sensor and the pressure plate to rotate through the rotating seat. The pressure plate contacts the top free ring of the bearing and drives it to rotate. During the rotation process, the torque sensor measures and records the torque value received by the bearing in real time. The torque sensor transmits the detected torque data to the data processing system for further analysis and processing. According to the detection results, evaluate whether the torque performance of the flat thrust bearing meets the design requirements or relevant standards.

[0020] The utility model has the following beneficial effects:

[0021] Through the design of the inner wall fixing component and the outer wall fixing component, the device of the utility model can be applied to flat thrust bearings of different sizes, improving the versatility and flexibility of the device. And by using automation components such as electric push rods and cylinders, the operation process is simplified, the operation difficulty is reduced, and the detection efficiency is improved.

[0022] In the utility model, the top supporting arc piece and the clamping arc piece are made of hard rubber material with high friction, which can not only ensure a stable fixing effect, but also avoid scratching or damaging the bearing. Description of the Drawings

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a torque detection device for a flat thrust bearing provided by an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the pressure plate of a torque detection device for a flat thrust bearing provided by an embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the operation table of a torque detection device for a flat thrust bearing provided by an embodiment of the utility model;

[0026] Figure 4 It is a separated structural schematic diagram of the inner wall fixing component and the operation table of a torque detection device for a flat thrust bearing provided by an embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the inner part of the inner ring of a torque detection device for a flat thrust bearing provided by an embodiment of the utility model.

[0028] Reference numerals: 1, main body of bearing torsion testing machine; 2, lifting plate; 3, hydraulic cylinder; 4, rotating seat; 5, driving motor; 6, torque sensor; 7, pressure plate; 8, operating table; 9, rib; 10, mounting groove; 11, inner ring; 12, sliding rod; 13, holding arc piece; 14, electric push rod; 15, hemispherical block; 16, outer ring; 17, air cylinder; 18, clamping arc piece. Detailed implementation mode

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "open hole", "upper", "middle", "length", "inner", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0031] In order to keep the following description of the embodiments of the present invention clear and concise, the detailed description of known functions and known components is omitted in the present invention.

[0032] Embodiment 1

[0033] Please refer to Figures 1-5 , a torque detection device, comprising:

[0034] The main body 1 of the bearing torsion testing machine, with the model BRG-3000-1. The internal design of the testing machine main body has a precise mechanical structure to achieve accurate measurement of torque. At the top of the testing machine main body 1, a hydraulic cylinder 3 is fixedly installed. The hydraulic cylinder 3 is connected to the lower lifting plate 2 through a connecting rod to control the vertical movement of the lifting plate 2. At the center of the bottom of the lifting plate 2, a rotating seat 4 is rotatably installed through a bearing. The rotating seat 4 can rotate freely and is driven to rotate by a driving motor 5 installed on the top of the lifting plate 2;

[0035] At the bottom of the rotating seat 4, a high-precision torque sensor 6 is tightly connected. This sensor is used to detect and record the torque changes during the rotation in real time. At the bottom of the torque sensor 6, a pressure plate 7 is fixedly installed. This pressure plate 7 is used to directly contact and drive the rotation of the free ring at the top of the planar thrust bearing. Multiple ridges 9 are designed at the bottom of the pressure plate 7. These ridges 9 are arranged in a circular array, aiming to increase the contact area and friction with the free ring at the top of the bearing, ensuring the accuracy and stability of torque transmission.

[0036] Inner wall fixing assembly, which is arranged on the operating table 8 and is used to fix the inner wall of the bottom fixing ring of planar thrust bearings with different sizes. The inner wall fixing assembly includes an inner ring 11 fixedly arranged at the center of the operating table 8. This inner ring 11 serves as the basis for fixing the inner wall of the bottom fixing ring of the planar thrust bearing. Three sliding rods 12 are slidably connected to the inner ring 11 in a circular array. At the outer end of each sliding rod 12, a holding arc piece 13 is fixedly installed. These holding arc pieces 13 are used to hold and fix the inner wall of the bearing bottom fixing ring from different directions. In order to synchronously adjust the spreading degree of the three sliding rods 12, an electric push rod 14 is also fixedly installed at the bottom of the inner ring 11. The output end of this electric push rod 14 contacts the inner end hemispherical blocks 15 of the three sliding rods 12 through corresponding hemispherical blocks 15 to achieve synchronous pushing. At the same time, an installation groove 10 matching the electric push rod 14 is provided at the top of the operating table 8 to facilitate the installation and fixation of the electric push rod 14.

[0037] Outer wall fixing assembly, which is arranged on the operating table 8 and is used to fix the outer wall of the bottom fixing ring of planar thrust bearings with different sizes to further ensure the accuracy of detection data. The outer wall fixing assembly includes an outer ring 16 fixedly arranged at the top of the operating table 8. The outer ring 16 is concentric with the inner ring 11 and is used to assist in fixing the outer wall of the bearing bottom fixing ring. A plurality of cylinders 17 are fixedly installed on the outer wall of the outer ring 16 in a circular array. The output end of each cylinder 17 penetrates the inner wall of the outer ring 16 and is fixedly connected to a clamping arc piece 18. These clamping arc pieces 18 can clamp and fix the outer wall of the bearing bottom fixing ring from different directions under the drive of the cylinders 17, further enhancing the stability of fixation and the accuracy of detection.

[0038] This application can be used for the detection of planar thrust bearings and can also be used in other fields applicable to this application.

[0039] Embodiment 2

[0040] Based on the improvement of Embodiment 1: A torque detection device for a planar thrust bearing, which is applied in the field of torque detection devices;

[0041] Please refer to Figure 3, in order to improve the fixing effect and protect the bearing, both the supporting arc piece 13 and the clamping arc piece 18 are made of hard rubber material with high friction. This material can not only ensure sufficient friction to stably fix the bearing, but also avoid scratching or damaging the bearing.

[0042] However, as is well known to those skilled in the art, the working principles and wiring methods of the bearing torsion testing machine body 1, the electric push rod 14 and the cylinder 17 are common knowledge, and they all belong to conventional means or well-known common sense, so they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0043] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model; without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A torque detection device for a planar thrust bearing, characterized in that Comprising: The main body (1) of a bearing torsion testing machine, inside which there is a lifting plate (2). The lifting plate (2) is lifted and lowered by a hydraulic cylinder (3) fixedly installed at the top of the main body (1) of the bearing torsion testing machine. At the center of the bottom of the lifting plate (2), a rotating seat (4) is rotatably installed. At the top of the lifting plate (2), a driving motor (5) for driving the rotating seat (4) to rotate is fixedly installed. At the bottom of the rotating seat (4), a torque sensor (6) used in a supporting manner is provided. At the bottom of the torque sensor (6), there is a pressing plate (7) for driving the free ring at the top of a flat thrust bearing to rotate. Right below the pressing plate (7), there is an operating platform (8), and the bottom of the operating platform (8) is fixedly arranged on the inner wall of the frame of the main body (1) of the bearing torsion testing machine; An inner wall fixing component, arranged on the operating platform (8) and used for fixing the inner wall of the bottom fixing ring of flat thrust bearings of different sizes; An outer wall fixing component, arranged on the operating platform (8) and used for fixing the outer wall of the bottom fixing ring of flat thrust bearings of different sizes to further ensure the accuracy of test data.

2. The torque detection device for a planar thrust bearing according to claim 1, wherein, The inner wall fixing component includes an inner ring (11) fixedly arranged at the center of the operating platform (8). Three sliding rods (12) are slidably connected to the inner ring (11) in an annular array. At the outer ends of the sliding rods (12), holding arc pieces (13) are fixedly arranged.

3. The torque detection device for a planar thrust bearing according to claim 2, wherein At the bottom of the inner ring (11), an electric push rod (14) for synchronously driving the three sliding rods (12) to spread is fixedly installed. An installation groove (10) for embedding the electric push rod (14) is arranged at the top of the operating platform (8). Hemispherical blocks (15) for improving the smoothness of pushing are fixedly arranged at the output end of the electric push rod (14) and the inner ends of the three sliding rods (12).

4. A torque detection device for a planar thrust bearing according to claim 2, characterized in that, The outer wall fixing component includes an outer ring (16) fixedly arranged at the top of the operating platform (8). The outer ring (16) and the inner ring (11) have the same center point. A plurality of air cylinders (17) are fixedly installed on the outer wall of the outer ring (16) in an annular array. The output ends of the air cylinders (17) penetrate through the inner wall of the outer ring (16) and corresponding clamping arc pieces (18) are fixedly arranged.

5. The torque detection device for a planar thrust bearing according to claim 4, characterized in that, Both the holding arc pieces (13) and the clamping arc pieces (18) are made of hard rubber material with high friction.

6. The torque detection device for a planar thrust bearing according to claim 1, characterized in that At the bottom of the pressing plate (7), a plurality of convex strips (9) for increasing friction are fixedly arranged in an annular array.

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