Gearbox performance testing device

Abstract

This application discloses a speed reducer performance testing device, comprising: a machine base, an input-side assembly, and a load-side assembly. The input-side assembly includes, in sequence, an input-side motor, a first coupling, an input-side torque sensor, a second coupling, a speed reducer mounting base, and a speed reducer output flange. The load-side assembly includes, in sequence, a load-side motor, a third coupling, a load-side torque sensor, a fourth coupling, and a load-side flange. One of the first surface of the speed reducer output flange and the second surface of the load-side flange is provided with a pin portion, and the other surface is provided with an oblong hole. The oblong hole extends radially along its own rotation center, and the width of the oblong hole is adapted to the size of the pin portion, allowing the pin portion to move along the extension direction of the oblong hole. This speed reducer performance testing device ensures reliable rotary transmission and avoids damage to the speed reducer caused by over-alignment due to direct screw connections.

Description

Technical Field

[0001] This application relates to the technical field of speed reducer testing devices, and in particular to a speed reducer performance testing device. Background Technology

[0002] In related technologies, the performance parameters of speed reducers typically include transmission accuracy, transmission efficiency, backlash, rigidity, and rated life. Different testing equipment is used to test these performance parameters, such as speed reducer transmission accuracy testing equipment, speed reducer transmission efficiency testing equipment, and speed reducer life testing equipment. Even testing equipment for the same performance parameter can have different structures or testing methods. For example, speed reducer life testing equipment can be either rocker arm type or coaxial type. While rocker arm type speed reducer life testing equipment has a simple structure, the torque applied to the speed reducer changes periodically during the rotation of the load arm, which cannot effectively represent the test results; furthermore, the large swing of the rocker arm poses a significant safety hazard to nearby personnel. Coaxial type speed reducer life testing equipment, on the other hand, effectively solves the problem of periodic changes in load torque, applying a stable load torque to the speed reducer; and without a mechanism with large-scale movement, it improves the safety of equipment use. However, due to unavoidable errors in machining and assembly precision, coaxiality issues can easily arise between the components connected to the reducer under test in the testing device. The rigid connection of the output terminals of the input-side component and the load-side component to the two ends of the reducer under test can easily lead to over-positioning problems, affecting the accuracy of the test data and even damaging the reducer. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes a speed reducer performance testing device that can ensure reliable rotary transmission while avoiding damage to the speed reducer caused by over-alignment due to direct screw connections.

[0004] The reducer performance testing device according to an embodiment of the present invention includes: a machine base, an input-side component, and a load-side component. The two opposite sides of the machine base are a first side and a second side, respectively. The input-side component is located on the first side and includes an input-side motor, a first coupling, an input-side torque sensor, a second coupling, a reducer mounting base, and a reducer output flange arranged sequentially from the first side to the second side. The load-side component is located on the second side and includes a load-side motor, a third coupling, a load-side torque sensor, a fourth coupling, and a load-side flange arranged sequentially from the second side to the first side. The reducer under test is placed between the reducer mounting base and the reducer output flange, and the reducer output flange is connected to the output end of the reducer under test. The side of the reducer output flange facing the load-side flange is the first side, and the side of the load-side flange facing the reducer output flange is the second side. One of the first and second sides is provided with a pin portion, and the other side is provided with an oblong hole. The extension direction of the oblong hole is radially arranged along its own rotation center. The width of the oblong hole is adapted to the size of the pin portion, and the pin portion can move along the extension direction of the oblong hole.

[0005] The reducer performance testing device according to the embodiment of this utility model has at least the following beneficial effects: This reducer performance testing device includes a machine base, an input-side component, and a load-side component. The input-side component and the load-side component are respectively located on both sides of the machine base. The input-side motor is connected to the input end of the reducer under test via a first coupling, an input-side torque sensor, and a second coupling, and transmits torque to the reducer under test, driving the reducer to rotate and causing the reducer output flange to rotate. Simultaneously, the input-side torque sensor monitors data such as the transmitted torque, speed, and power in real time. The load-side motor on the other side is connected via a third coupling, a load-side torque sensor, and a fourth coupling. The coupling transmits torque to the load-side flange, and the load-side torque sensor monitors the transmitted torque, speed, and power in real time. One of the opposite faces of the load-side flange and the reducer output flange is provided with a pin, and the other is provided with a slotted hole. The pin can move along the extension direction of the slotted hole, but is limited to the width direction of the slotted hole. Since the slotted hole is radially arranged along the rotation center of its own part, the load-side flange and the reducer output flange can constrain each other in the rotation direction, ensuring reliable rotary transmission and avoiding the problem of over-positioning caused by direct screw connection, which would affect the accuracy of test data or even damage the reducer.

[0006] According to some embodiments of the present invention, there are two pins located on the same diameter of the first surface, and the waist-shaped holes are arranged in pairs corresponding to the pins, and multiple sets are arranged along the second surface.

[0007] According to some embodiments of this utility model, the output flange and the load-side flange of the reducer are spaced apart.

[0008] According to some embodiments of this utility model, the first coupling, the second coupling, the third coupling, and the fourth coupling are all flexible couplings.

[0009] According to some embodiments of the present invention, the machine tool is provided with a first base, the first base is provided with a first slide groove, the input side component and the load side component are both provided on the first base and can slide along the first slide groove.

[0010] According to some embodiments of the present invention, a second base is provided on the first base, a second slide groove is provided on the second base, an input side component is provided on the second base and can slide along the second slide groove, the second base can slide along the first slide groove, and the first slide groove and the second slide groove are located on the same plane.

[0011] According to some embodiments of the present invention, a hand crank screw is also included. The hand crank screw is rotatably connected to the first base. One end of the hand crank screw is provided with a handwheel, and the other end is connected to the second base and is used to drive the second base to move closer to or away from the load-side component.

[0012] According to some embodiments of the present invention, it also includes a keyboard, a display, and a control system. The keyboard, the display, the input-side motor, the input-side torque sensor, the load-side motor, and the load-side torque sensor are all electrically connected to the control system.

[0013] According to some embodiments of the present invention, the load-side assembly further includes a load reducer, which connects the load-side motor and the third coupling.

[0014] According to some embodiments of the present invention, the load-side assembly further includes a load-side bearing housing, a load-side flange passing through the load-side bearing housing and fixed to the inner ring of the load-side bearing housing, and the input-side assembly further includes an input-side bearing housing, and a second coupling passing through the input-side bearing housing and fixed to the inner ring of the input-side bearing housing.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the speed reducer performance testing device of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the first base, second base, input-side assembly, load-side assembly, and the reducer under test in the reducer performance testing device shown in the figure;

[0019] Figure 3 for Figure 1 The diagram shows the structure of the reducer output flange, load-side flange, and the reducer under test in the reducer performance testing device shown.

[0020] Figure label:

[0021] Machine base 100; first base 110; first slide 111; second base 120; second slide 121; hand crank screw 130; input side assembly 200; input side motor 210; first coupling 220; input side torque sensor 230; second coupling 240; reducer mounting base 250; reducer output flange 260; pin part 261; input side bearing seat 270; load side assembly 300; load side motor 310; load reducer 320; third coupling 330; load side torque sensor 340; fourth coupling 350; load side flange 360; oblong hole 361; load side bearing seat 370; reducer under test 400; keyboard 500; display 600. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0023] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0026] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The following is for reference. Figures 1 to 3 This invention describes a speed reducer performance testing device according to an embodiment of the present invention.

[0028] like Figures 1 to 3 As shown, the reducer performance testing device according to an embodiment of the present invention includes: a machine base 100, an input-side assembly 200, and a load-side assembly 300. The machine base 100 has a first side and a second side on opposite sides, respectively. The input-side assembly 200 is located on the first side and includes, sequentially arranged from the first side to the second side, an input-side motor 210, a first coupling 220, an input-side torque sensor 230, a second coupling 240, a reducer mounting base 250, and a reducer output flange 260. The load-side assembly 300 is located on the second side and includes, sequentially arranged from the second side to the first side, a load-side motor 310, a third coupling 330, a load-side torque sensor 340, a fourth coupling 350, and a... A load-side flange 360 ​​is provided; wherein, the reducer mounting base 250 and the reducer output flange 260 are used to set the reducer under test 400, and the reducer output flange 260 is connected to the output end of the reducer under test 400. The side of the reducer output flange 260 facing the load-side flange 360 ​​is the first side, and the side of the load-side flange 360 ​​facing the reducer output flange 260 is the second side. One of the first side and the second side is provided with a pin part 261, and the other side is provided with an oblong hole 361. The extension direction of the oblong hole 361 is arranged radially along its own rotation center. The width of the oblong hole 361 is adapted to the size of the pin part 261, and the pin part 261 can move along the extension direction of the oblong hole 361.

[0029] Understandably, this reducer performance testing device includes: a machine base 100, an input-side component 200, and a load-side component 300. The input-side component 200 and the load-side component 300 are respectively located on both sides of the machine base 100. The input-side motor 210 is connected to the input end of the reducer under test 400 through a first coupling 220, an input-side torque sensor 230, and a second coupling 240, and transmits torque to the reducer under test 400, driving the reducer to rotate and causing the reducer output flange 260 to rotate. At the same time, the input-side torque sensor 230 monitors the transmitted torque, speed, and power data in real time. On the other side, the load-side motor 310 is connected to the reducer under test through a third coupling 330, a load-side torque sensor 340, and a fourth coupling 350. The torque is transmitted to the load-side flange 360, and the load-side torque sensor 340 monitors the transmitted torque, speed, and power data in real time. One of the opposing surfaces of the load-side flange 360 ​​and the reducer output flange 260 is provided with a pin portion 261, and the other side is provided with a waist-shaped hole 361. The pin portion 261 can move along the extension direction of the waist-shaped hole 361, but is limited to the width direction of the waist-shaped hole 361. Since the waist-shaped hole 361 is radially arranged along the rotation center of its own part, the load-side flange 360 ​​and the reducer output flange 260 can mutually constrain each other in the rotation direction, ensuring reliable rotational transmission and avoiding the problem of over-positioning caused by direct screw connection, which could affect the accuracy of test data or even damage the reducer.

[0030] The load-side assembly 300 also includes a load reducer 320, which connects the load-side motor 310 and the third coupling 330. The load-side assembly 300 also includes a load-side bearing housing 370, with a load-side flange 360 ​​passing through and fixed to the inner ring of the load-side bearing housing 370. The input-side assembly 200 also includes an input-side bearing housing 270, with a second coupling 240 passing through and fixed to the inner ring of the input-side bearing housing 270.

[0031] It is understandable that the pin portion 261 has two pins located on the same diameter on the first surface, and the oblong holes 361 are arranged in pairs corresponding to the pin portions 261, with multiple sets arranged along the second surface. For example, as... Figure 3 As shown, in this embodiment, multiple sets of waist-shaped holes 361 are provided on the second side of the load-side flange 360 ​​in the diametrical direction, and two pin parts 261 are provided, so that before the experiment, the two pin parts 261 on the reducer output flange 260 can be aligned with the two adjacent waist-shaped holes 361 and inserted.

[0032] It is understandable that the reducer output flange 260 and the load-side flange 360 ​​are spaced apart. For example, as Figure 3As shown, in this embodiment, the two opposing surfaces of the reducer output flange 260 and the load-side flange 360 ​​do not contact each other, thereby reducing friction during rotation.

[0033] It is understood that the first coupling 220, the second coupling 240, the third coupling 330, and the fourth coupling 350 are all flexible couplings. For example, as... Figures 1 to 3 As shown, in this embodiment, the first coupling 220, the second coupling 240, the third coupling 330 and the fourth coupling 350 are all diaphragm couplings. In other embodiments, universal couplings may also be used.

[0034] It is understood that the machine tool 100 is provided with a first base 110, the first base 110 is provided with a first slide groove 111, and both the input-side component 200 and the load-side component 300 are disposed on the first base 110 and can slide along the first slide groove 111. For example, as Figures 1 to 3 As shown, in this embodiment, both the input-side component 200 and the load-side component 300 can slide along the first groove 111 of the first base 110, thereby improving coaxiality.

[0035] It is understood that a second base 120 is provided on the first base 110, and a second slide groove 121 is provided on the second base 120. The input-side component 200 is disposed on the second base 120 and can slide along the second slide groove 121. The second base 120 can slide along the first slide groove 111, and the first slide groove 111 and the second slide groove 121 are located on the same plane. For example, as... Figures 1 to 3 As shown, in this embodiment, by placing the input-side component 200 on the second base 120 and allowing it to slide along the second slide groove 121, it is convenient to install the reducer 400 under test, and after installation, the input-side component 200 can be adjusted at once.

[0036] Understandably, it also includes a hand-cranked screw 130, which is rotatably connected to the first base 110. One end of the hand-cranked screw 130 is equipped with a handwheel, and the other end is connected to the second base 120, used to drive the second base 120 closer to or further away from the load-side assembly 300. For example, as... Figures 1 to 3 As shown, in this embodiment, the distance between the input-side component 200 and the load-side component 300 can be flexibly adjusted as needed using a hand-cranked lead screw 130. After adjusting the distance, the second base 120 and the first base 110 are locked together with screws.

[0037] Understandably, it also includes a keyboard 500, a display 600, and a control system. The keyboard 500, display 600, input-side motor 210, input-side torque sensor 230, load-side motor 310, and load-side torque sensor 340 are all electrically connected to the control system. For example, as... Figure 1As shown, in this embodiment, by connecting the keyboard 500, display 600, input-side motor 210, input-side torque sensor 230, load-side motor 310, and load-side torque sensor 340 to the control system, it is convenient to input and display the corresponding technical parameters, and adjust the output technical parameters of the input-side motor 210 and the load-side motor 310 as needed to control the experimental time.

[0038] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A speed reducer performance testing device, characterized in that, include: The machine platform, wherein the two opposite sides of the machine platform are the first side and the second side, respectively; The input-side assembly is located on the first side and includes an input-side motor, a first coupling, an input-side torque sensor, a second coupling, a reducer mounting base, and a reducer output flange arranged sequentially from the first side to the second side. The load-side assembly, located on the second side, includes a load-side motor, a third coupling, a load-side torque sensor, a fourth coupling, and a load-side flange, arranged sequentially from the second side to the first side; wherein... The reducer mounting base and the reducer output flange are used to house the reducer under test, and the reducer output flange is connected to the output end of the reducer under test. The side of the reducer output flange facing the load-side flange is the first side, and the side of the load-side flange facing the reducer output flange is the second side. One of the first side and the second side is provided with a pin portion, and the other side is provided with an oblong hole. The extension direction of the oblong hole is arranged radially along its own rotation center. The width of the oblong hole is adapted to the size of the pin portion, and the pin portion can move along the extension direction of the oblong hole.

2. The reducer performance testing device according to claim 1, characterized in that, The pin portion has two pins located on the same diameter of the first surface, and the waist-shaped holes are arranged in pairs corresponding to the pin portions, and multiple sets are arranged along the second surface.

3. The reducer performance testing device according to claim 1 or 2, characterized in that, The reducer output flange and the load-side flange are spaced apart.

4. The reducer performance testing device according to claim 1 or 2, characterized in that, The load-side assembly also includes a load reducer, which connects the load-side motor and the third coupling.

5. The reducer performance testing device according to claim 4, characterized in that, The load-side assembly further includes a load-side bearing housing, the load-side flange passes through the load-side bearing housing and is fixed to the inner ring of the load-side bearing housing, the input-side assembly further includes an input-side bearing housing, and the second coupling passes through the input-side bearing housing and is fixed to the inner ring of the input-side bearing housing.

6. The reducer performance testing device according to claim 5, characterized in that, The first coupling, the second coupling, the third coupling, and the fourth coupling are all flexible couplings.

7. The reducer performance testing device according to claim 6, characterized in that, The machine tool is provided with a first base, and the first base is provided with a first slide groove. The input side component and the load side component are both provided on the first base and can slide along the first slide groove.

8. The reducer performance testing device according to claim 7, characterized in that, The first base is provided with a second base, the second base is provided with a second slide groove, the input side component is provided on the second base and can slide along the second slide groove, the second base can slide along the first slide groove, and the first slide groove and the second slide groove are located on the same plane.

9. The reducer performance testing device according to claim 8, characterized in that, It also includes a hand crank screw, which is rotatably connected to the first base. One end of the hand crank screw is provided with a handwheel, and the other end is connected to the second base and is used to drive the second base to move closer to or away from the load-side component.

10. The reducer performance testing device according to claim 1, characterized in that, It also includes a keyboard, a display, and a control system, wherein the keyboard, the display, the input-side motor, the input-side torque sensor, the load-side motor, and the load-side torque sensor are all electrically connected to the control system.

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