High-torque durability testing machine

Abstract

The utility model discloses a high-torque durability testing machine which comprises a lower rack and an upper rack, a driving wheel mechanism is installed at one end of the top of the lower rack, a horizontal tensioning wheel mechanism is installed at the top of the lower rack and located on one side of the driving wheel mechanism, and a lifting tensioning wheel mechanism is installed on the upper rack. According to the utility model, in a non-bending test, cog belts with different sizes are tested at three points (the driving test belt wheel, the driven synchronous wheel and the free wheel); in the bending test, cog belts with different sizes are tested by adding idle wheels (an idle wheel, a driving test belt wheel, a driven synchronous wheel and a free wheel); the position of the driven synchronous wheel can be adjusted through the driving assembly and the ball screw, the position of the testing belt wheel assembly can be adjusted through the second screw module, it can be guaranteed that the belt is an equilateral triangle during testing, and the testing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt test technical field, concretely is a kind of high-torque endurance testing machine. BACKGROUND

[0002] Belt is one of standard parts used in transmission in automation machinery, its use is very extensive, simultaneously according to different use occasions, belt is divided into many different categories, and its performance requirement is also different, so different belts need to carry out different tests.

[0003] The current test structure design is unreasonable, the free wheel fixing position of existing testing machine is designed as single-side suspension structure, and the outer test belt is farther away from the fixed support than the inner test belt. While applying test torque, the load of cantilever structure is also increased, which generates bending moment on the stressed structure. The generation of bending moment affects the purpose of transmitting torque by torsional spring for the outer test belt. Through structural function analysis, the tension of the current inner test belt should be smaller than the tension of the outer test belt. In order to solve the above technical problems, we propose a high-torque endurance testing machine. SUMMARY

[0004] The utility model aims at providing a kind of high-torque endurance testing machine to solve the problems in prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-torque endurance testing machine, including lower frame and upper frame, characterized by: one end of the lower frame top is equipped with driving wheel mechanism, the lower frame top is equipped with horizontal tension pulley mechanism on the side of driving wheel mechanism, and the upper frame is equipped with lifting tension pulley mechanism.

[0006] Preferably, the driving wheel mechanism includes a driving motor, a first bearing seat, a driving test belt wheel, a driving shaft and a first synchronous pulley, the first bearing seat is provided with two, the driving shaft is rotatably installed on the two first bearing seats by bearing, the middle part of the driving shaft is equipped with the first synchronous pulley, and the outer side of the driving shaft in the first bearing seat is equipped with the driving test belt wheel.

[0007] Preferably, the horizontal tension pulley mechanism comprises first linear guides, a torque sensor, second bearing seats, passive test pulleys, driven synchronous pulleys, driving synchronous pulleys and a driving assembly, the two first linear guides are installed in parallel on a lower frame, sliding seats are slidably installed on the two first linear guides, the sliding seats are provided with the two second bearing seats, test pulley shafts are rotatably installed on the two second bearing seats, the two test pulley shafts are respectively provided with passive test pulleys matched with driving test pulleys, and a torque sensor is installed between the two test pulley shafts; the sliding seats are driven by ball screws, one end of the ball screw is provided with a driven synchronous pulley, the driving assembly drives a driving synchronous pulley, and the driving synchronous pulley and the driven synchronous pulley are connected through a synchronous belt.

[0008] Preferably, the lifting tension pulley mechanism comprises second linear guides, a moving seat, a first screw module and a second screw module, the second linear guides are installed at the top of the upper frame, the moving seat is slidably installed on the second linear guides, the moving seat is driven by the second screw module, a lifting support is installed at the bottom of the moving seat, a test pulley assembly is slidably installed on one side of the lifting support, and an idler assembly is installed at the bottom of the lifting support.

[0009] Preferably, a guide rod is installed at the top of the idler assembly, and the test pulley assembly is provided with a guide sleeve matched with the guide rod.

[0010] Preferably, the test pulley assembly comprises a lifting plate, free pulleys and lifting bearing seats, the bottom of the lifting plate is provided with the two lifting bearing seats, and the two lifting bearing seats are respectively rotatably provided with the free pulleys through bearings.

[0011] Preferably, the idler assembly comprises an idler plate and idlers, and the two sides of the idler plate are rotatably provided with the two idlers.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The machine is used for testing the durability of toothed belts. In the non-curling test, different sizes of toothed belts are tested through three points (driving test pulleys, driven synchronous pulleys and free pulleys). In the curling test, different sizes of toothed belts are tested by adding idlers (idlers, driving test pulleys, driven synchronous pulleys and free pulleys). The position of the driven synchronous pulley can be adjusted through the driving assembly and the ball screw, the position of the test pulley assembly can be adjusted through the second screw module, the belt can be ensured to be an equilateral triangle during the test, and the test effect is improved.

[0014] The idlers, the driving test pulleys, the driven synchronous pulleys and the free pulleys are symmetrically arranged, the mechanical installation positions of the two test belts are ensured to be the same, and the problem that the inner test belt tension is smaller than the outer test belt tension is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and do not limit the present application. In the drawings:

[0016] Figure 1 is a structural schematic view of the present application;

[0017] Figure 2 is a structural schematic view of the internal structure of the present application;

[0018] Figure 3 is a front view of the present application; Figure 2

[0019] Figure 4 is a structural schematic view of the lifting tension wheel mechanism of the present application;

[0020] Figure 5 is a structural schematic view of the partial structure of the present application; Figure 4

[0021] Figure 6 is a structural schematic view of the driving wheel mechanism of the present application;

[0022] Figure 7 is a structural schematic view of the horizontal tension wheel mechanism of the present application.

[0023] In the drawings: 1, lower rack; 2, protective shell; 3, upper rack; 4, driving wheel mechanism; 5, horizontal tension wheel mechanism; 6, lifting tension wheel mechanism; 41, driving motor; 42, first bearing seat; 43, driving test belt wheel; 44, driving shaft; 45, first synchronous belt wheel; 51, first linear guide rail; 52, torque sensor; 53, second bearing seat; 54, passive test belt wheel; 55, driven synchronous wheel; 56, driving synchronous wheel; 57, driving assembly; 61, second linear guide rail; 62, moving seat; 63, first screw module; 64, second screw module; 65, test belt wheel assembly; 66, lifting support; 67, idler assembly; 68, guide rod; 651, lifting plate; 652, free wheel; 653, lifting bearing seat; 671, idler plate; 672, idler. DETAILED DESCRIPTION

[0024] ​​In order to make the purposes, technical schemes and advantages of the embodiments of the present application clearer, the technical schemes of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application.

[0025] Please refer to Figures 1-7 In the embodiments of the present application, a high-torque durability testing machine comprises a lower rack 1 and an upper rack 3, the outer sides of the lower rack 1 and the upper rack 3 are provided with protective shells 2, one end of the top of the lower rack 1 is provided with a driving wheel mechanism 4, the side of the top of the lower rack 1 located at the driving wheel mechanism 4 is provided with a horizontal tension wheel mechanism 5, and the upper rack 3 is provided with a lifting tension wheel mechanism 6. The machine is used for testing the durability of toothed belts. In non-curling testing, different sizes of toothed belts are tested at three points (the driving testing belt wheel 43, the driven synchronous wheel 55 and the free wheel 652). In curling testing, different sizes of toothed belts are tested by adding idlers (the idler 672, the driving testing belt wheel 43, the driven synchronous wheel 55 and the free wheel 652). The position of the driven synchronous wheel 55 can be adjusted by the driving assembly 57 and the ball screw, and the position of the testing belt wheel assembly 65 can be adjusted by the second screw module 64, so that the belt testing can be ensured to be an equilateral triangle, and the testing effect is improved.

[0026] The driving wheel mechanism 4 comprises a driving motor 41, two first bearing seats 42, a driving testing belt wheel 43, a driving shaft 44 and a first synchronous pulley 45, the two first bearing seats 42 are provided, the driving shaft 44 is rotatably installed on the two first bearing seats 42 through bearings, the middle part of the driving shaft is provided with the first synchronous pulley 45, the outer side of the driving shaft located at the first bearing seat 42 is provided with the driving testing belt wheel 43, and the driving testing belt wheel 43 can be driven to rotate by the driving motor 41.

[0027] The horizontal tension wheel mechanism 5 comprises a first linear guide rail 51, a torque sensor 52, a second bearing seat 53, a passive test belt wheel 54, a driven synchronous wheel 55, a driving synchronous wheel 56 and a driving assembly 57, two first linear guide rails 51 are installed in parallel on the lower rack 1, a sliding seat is slidingly installed on the two first linear guide rails 51, the sliding seat is installed with two second bearing seats 53, the two second bearing seats 53 are both rotationally installed with test wheel shafts, the two test wheel shafts are respectively installed with passive test belt wheels 54 matched with the driving test belt wheel 43, and the torque sensor 52 is installed between the two test wheel shafts; the sliding seat is driven through a ball screw, one end of the ball screw is installed with the driven synchronous wheel 55, the driving synchronous wheel 56 is driven by the driving assembly 57, and the driving synchronous wheel 56 and the driven synchronous wheel 55 are connected through a synchronous belt.

[0028] The lifting tension wheel mechanism 6 comprises a second linear guide rail 61, a moving seat 62, a first screw module 63 and a second screw module 64, the second linear guide rail 61 is installed at the top end of the upper rack 3, the moving seat 62 is slidingly installed on the second linear guide rail 61, the moving seat 62 is driven through the second screw module 64, the bottom end of the moving seat 62 is installed with a lifting support 66, one side of the lifting support 66 is slidingly installed with a test belt wheel assembly 65, the bottom end of the lifting support 66 is installed with an idler assembly 67, the top end of the idler assembly 67 is installed with a guide rod 68, the test belt wheel assembly 65 is provided with a guide sleeve matched with the guide rod 68, the test belt wheel assembly 65 comprises a lifting plate 651, a freewheel 652 and a lifting bearing seat 653, the bottom end of the lifting plate 651 is installed with two lifting bearing seats 653, the two lifting bearing seats 653 are respectively rotationally installed with the freewheel 652 through bearings, the idler assembly 67 comprises an idler plate 671 and idlers, and two idlers 672 are rotationally installed on the two sides of the idler plate 671.

[0029] The working principle of the utility model is: the utility model is used for testing the durability of toothed belt. In non-winding test, toothed belts of different sizes are tested through three points (the driving test belt wheel 43, the driven synchronous wheel 55 and the freewheel 652). In winding test, toothed belts of different sizes are tested through the addition of idlers (the idlers 672, the driving test belt wheel 43, the driven synchronous wheel 55 and the freewheel 652). The position of the driven synchronous wheel 55 can be adjusted through the driving assembly 57 and the ball screw, the position of the test belt wheel assembly 65 can be adjusted through the second screw module 64, the belt can be ensured to be an equilateral triangle during test, and the test effect is improved.

[0030] The idler wheel 672, the driving test belt wheel 43, the driven synchronous wheel 55 and the free wheel 652 are symmetrically arranged, so that the mechanical installation positions of the two test belts are same, and the problem that the inner test belt tension is less than the outer test belt tension is solved.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A high torque endurance tester comprising a lower frame (1) and an upper frame (3), characterized in that: One end of the top of the lower rack (1) is provided with a driving wheel mechanism (4), one side of the top of the lower rack (1) is provided with a horizontal tension wheel mechanism (5), and the upper rack (3) is provided with a lifting tension wheel mechanism (6).

2. A high torque endurance tester as claimed in claim 1, wherein: The driving wheel mechanism (4) comprises a driving motor (41), a first bearing seat (42), a driving test belt wheel (43), a driving shaft (44) and a first synchronous belt wheel (45), the first bearing seat (42) is provided with two, the driving shaft (44) is rotatably installed on the two first bearing seats (42) through bearings, the middle part of the driving shaft (44) is provided with the first synchronous belt wheel (45), and the outer side of the driving shaft (44) is provided with the driving test belt wheel (43) and the first bearing seat (42).

3. A high torque endurance tester as claimed in claim 2, wherein: The horizontal tension wheel mechanism (5) comprises a first linear guide rail (51), a torque sensor (52), a second bearing seat (53), a passive test belt wheel (54), a driven synchronous wheel (55), a driving synchronous wheel (56) and a driving assembly (57), two first linear guide rails (51) are installed in parallel on the lower rack (1), a sliding seat is slidably installed on the two first linear guide rails (51), the sliding seat is provided with two second bearing seats (53), two test shafts are rotatably installed on the two second bearing seats (53), two test shafts are respectively provided with passive test belt wheels (54) matched with the driving test belt wheel (43), and a torque sensor (52) is installed between the two test shafts; the sliding seat is driven by a ball screw, one end of the ball screw is provided with the driven synchronous wheel (55), the driving assembly (57) drives the driving synchronous wheel (56), and the driving synchronous wheel (56) and the driven synchronous wheel (55) are connected through a synchronous belt.

4. The high torque endurance tester of claim 1, wherein: The lifting tension wheel mechanism (6) comprises a second linear guide rail (61), a moving seat (62), a first screw rod module (63) and a second screw rod module (64), the second linear guide rail (61) is installed at the top of the upper rack (3), the moving seat (62) is slidably installed on the second linear guide rail (61), the moving seat (62) is driven by the second screw rod module (64), the bottom end of the moving seat (62) is provided with a lifting support (66), one side of the lifting support (66) is slidably provided with a test belt wheel assembly (65), and the bottom end of the lifting support (66) is provided with an idler assembly (67).

5. A high torque endurance tester as claimed in claim 4, wherein: The top end of the idler assembly (67) is provided with a guide rod (68), and the test belt wheel assembly (65) is provided with a guide sleeve matched with the guide rod (68).

6. A high torque endurance tester as claimed in claim 4, wherein: The test belt wheel assembly (65) comprises a lifting plate (651), a freewheel (652) and a lifting bearing seat (653), the bottom end of the lifting plate (651) is provided with two lifting bearing seats (653), and the two lifting bearing seats (653) are respectively rotatably provided with the freewheels (652) through bearings.

7. A high torque endurance tester as claimed in claim 6, wherein: The idler assembly (67) comprises an idler plate (671) and two idlers (672) rotatably mounted on both sides of the idler plate (671).

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