Fatigue testing device for fitness bicycle

Abstract

The invention provides a body-building bicycle fatigue testing device, which comprises a power mechanism, a bearing mechanism, a transmission mechanism and a middle shaft connecting piece, and is characterized in that the transmission mechanism comprises a sliding assembly and a guide rail assembly, the guide rail assembly is fixedly connected with the bearing mechanism, one end of the sliding assembly is slidably connected with the guide rail assembly, and the other end of the sliding assembly is fixedly connected with the power mechanism; one end of the middle shaft connecting piece is detachably connected with an output transmission shaft of the power mechanism, and the other end of the middle shaft connecting piece is connected with a driving knuckle bearing of the fitness bicycle. Whether the to-be-tested product in the test fails or not can be judged through the torsion sensor of the power mechanism and the torsion required by the fitness bicycle. The power mechanism can move up and down and left and right through the transmission mechanism and the middle shaft connecting piece, so that the purposes of quick installation and test efficiency improvement are achieved; the test range can be widened through the center shaft connecting pieces of different models, the test is not limited to few types of body-building bicycles any more, and the universality of vehicle models in the body-building bicycle fatigue test is improved.

Description

Technical Field

[0001] The present application relates to a testing device for the mechanical properties of a bicycle, and in particular to a fatigue testing device for a fitness bicycle. Background Art

[0002] The automated torque test device mainly drives the test head through a motor to apply torque to the object being tested, and uses a high-precision sensor to measure the torque value and angle change, thereby obtaining the torsional performance parameters of the object being tested. During the test, the device can realize automated control, data collection and processing, greatly improving the test efficiency and accuracy.

[0003] The defects of current technology are: most similar devices are directly connected and driven by motors, the connecting parts of the equipment are immovable, and installation is difficult. The test range is greatly limited and can only be tested on a few fixed-structure fitness bikes. There is no torque sensor. When the sample is damaged, the device cannot stop automatically, resulting in jamming, causing certain damage to the equipment and sample, affecting the test results.

[0004] Therefore, there is an urgent need for a testing device with movable connecting parts, simple installation, high versatility, greater automation, high testing accuracy and better stability. Summary of the invention

[0005] In view of the above problems, the present application is proposed to provide a fitness bicycle fatigue testing device that overcomes the above problems or at least partially solves the above problems. The device includes a power mechanism, a load-bearing mechanism, a transmission mechanism, and middle shaft connectors of different models. The transmission mechanism includes a sliding assembly and a guide rail assembly. The guide rail assembly is fixedly connected to the load-bearing mechanism. One end of the sliding assembly is slidably connected to the guide rail assembly, and the other end is fixedly connected to the power mechanism.

[0006] One end of the central axis connecting piece is detachably connected to the output transmission shaft of the power mechanism, and the other end is connected to the driving joint bearing of the fitness bicycle.

[0007] Optionally, the load-bearing mechanism comprises a plurality of load-bearing mechanisms, the plurality of load-bearing mechanisms are connected in parallel and as a whole, and the guide rail assembly is arranged along the end surfaces of the plurality of load-bearing mechanisms arranged in parallel.

[0008] Optionally, each of the load-bearing mechanisms includes a load-bearing frame and a detection plate, and the detection plate is fixedly connected to the top of the load-bearing frame.

[0009] Optionally, an end surface of the detection plate is flush with an end surface of the load-bearing frame.

[0010] Optionally, each of the detection plates is provided with at least one set of clamps for fixing the fitness bike to be tested.

[0011] Optionally, the power mechanism includes a frame, a torque test assembly, a transmission assembly, a motor and a control box;

[0012] The torque testing assembly is fixedly arranged on the upper layer of the frame, and the transmission assembly is fixedly arranged on the lower layer of the frame;

[0013] One end of the transmission assembly is connected to the motor, and the other end is connected to the torque testing assembly;

[0014] The control box is in control connection with the motor and the torque testing assembly.

[0015] Optionally, the torque test assembly includes a torque sensor, a drive crank and an output transmission shaft;

[0016] One end of the output transmission shaft is transmission-connected to the motor, and the other end is detachably connected to the middle shaft connector;

[0017] The torque sensor is fixedly connected to the output transmission shaft.

[0018] Optionally, the transmission assembly includes a large synchronous wheel, a small synchronous wheel and a transmission rod;

[0019] One end of the transmission rod is connected to the driving crank, and the other end is connected to the small synchronous wheel. The large synchronous wheel and the small synchronous wheel are connected through a synchronous belt.

[0020] Optionally, the guide rail assembly includes a slide rail, a lead screw, a guide groove, a first slider group and a crawler track;

[0021] The slide rail is arranged along the longitudinal direction of a plurality of detection plates arranged side by side, and is fixedly connected to the load-bearing frame, and the screw rod and the guide groove are respectively fixedly connected to the load-bearing frame through fixing members;

[0022] The slide rail, the lead screw and the guide groove are parallel to each other, and the lead screw is arranged between the slide rail and the guide groove;

[0023] The slider is inserted into the screw rod, and the crawler belt is arranged in the guide groove and is fixedly connected to the first slider group.

[0024] Optionally, the sliding assembly includes a second slider group and a slide plate;

[0025] A frame of the power mechanism is fixedly arranged on a side of the slide away from the load-bearing mechanism;

[0026] The second slider group is fixedly arranged on one side of the slide plate close to the load-bearing mechanism, and the second slider group is slidably connected to the transmission mechanism.

[0027] This application has the following advantages:

[0028] In the embodiment of the present application, in view of the problem that most of the prior art directly connects the motor of the test equipment to the driving part of the fitness bike, resulting in the immovable connecting parts of the equipment, difficult installation, and a large limitation in the test range, the present application provides a fitness bike fatigue test device, specifically: the device includes a power mechanism, a load-bearing mechanism, a transmission mechanism, and a central axis connecting member, the transmission mechanism includes a sliding assembly and a guide rail assembly, the guide rail assembly is fixedly connected to the load-bearing mechanism, one end of the sliding assembly is slidably connected to the guide rail assembly, and the other end is fixedly connected to the power mechanism; one end of the central axis connecting member is detachably connected to the output transmission shaft of the power mechanism, and the other end is connected to the driving joint bearing of the fitness bike. Through the torque sensor of the power mechanism and the torque required by the fitness bike, it can be judged whether the product under test is faulty; through the transmission mechanism and the central axis connecting member, the power mechanism can be moved up, down, left, and right, achieving the purpose of quick installation and improving test efficiency; different models of central axis connecting members can make the test range wider, and the test is no longer limited to a few types of fitness bikes, which improves the universality of the model in the fitness bike fatigue test. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the description of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 A schematic structural diagram of a fitness bike fatigue testing device provided by the present application is shown;

[0031] Figure 2 A schematic structural diagram of a fitness bike fatigue testing device provided in the present application is shown.

[0032] The reference numerals in the drawings of the specification are as follows:

[0033] 1. Frame; 2. Motor; 3. Control box; 4. Torque sensor; 5. Drive crank; 6. Output transmission shaft; 7. Large synchronous wheel; 8. Small synchronous wheel; 9. Transmission rod; 10. Synchronous belt; 11. Load-bearing frame; 12. Detection plate; 13. Clamp; 14. Slide rail; 15. Screw rod; 16. Guide groove; 17. First slider group; 18. Track; 19. Second slider group; 20. Slide plate. 21. Middle shaft connector. DETAILED DESCRIPTION

[0034] In order to make the objects, features and advantages of the present application more obvious and understandable, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0035] By analyzing the prior art, the inventors found that when fitness bikes are subjected to fatigue tests, the motor of the test equipment is usually directly connected to the drive components of the fitness bike, which results in installation difficulties, large limitations on the test range, low test versatility, and no torque sensor. When the sample is damaged, the device cannot stop automatically, resulting in jamming, causing certain damage to the device and sample, affecting the test results.

[0036] Reference Figure 1-2 , showing a schematic diagram of the internal structure of a fitness bike fatigue testing device provided in the present application.

[0037] A fitness bike fatigue testing device comprises a power mechanism, a load-bearing mechanism, a transmission mechanism and different types of middle axis connectors 21, wherein the transmission mechanism comprises a sliding assembly and a guide rail assembly, wherein the guide rail assembly is fixedly connected to the load-bearing mechanism, wherein one end of the sliding assembly is slidably connected to the guide rail assembly, and the other end is fixedly connected to the power mechanism; one end of the middle axis connector 21 is detachably connected to an output transmission shaft 6 of the power mechanism, and the other end is connected to a driving joint bearing of the fitness bike.

[0038] It should be noted that the middle shaft connector 21 is used to connect the rotating parts of the left and right cranks of the bicycle.

[0039] In the embodiments of the present application, in view of the problem that most of the prior art directly connects the motor 2 of the test equipment to the driving part of the fitness bike, resulting in the connection parts of the equipment being immovable, difficult to install, and having a significant limitation on the test range, the present application provides a fitness bike fatigue testing device, specifically: the device includes a power mechanism, a load-bearing mechanism, a transmission mechanism and a central axis connecting member 21, the transmission mechanism includes a sliding assembly and a guide rail assembly, the guide rail assembly is fixedly connected to the load-bearing mechanism, one end of the sliding assembly is slidably connected to the guide rail assembly, and the other end is fixedly connected to the power mechanism; one end of the central axis connecting member 21 is detachably connected to the output transmission shaft 6 of the power mechanism, and the other end is connected to the driving joint bearing of the fitness bike. Through the torque sensor 4 of the power mechanism and the torque required by the fitness bike, it is possible to determine whether the product under test is faulty; through the transmission mechanism and the central axis connector 21, the power mechanism can be moved up, down, left and right, achieving the purpose of quick installation and improved test efficiency; different models of central axis connectors 21 can widen the scope of testing, and the test is no longer limited to a few types of fitness bikes, thereby improving the versatility of the model in the fitness bike fatigue test.

[0040] Next, a fitness bike fatigue testing device in this exemplary embodiment will be further described.

[0041] In one embodiment of the present application, the load-bearing mechanism includes a plurality of load-bearing mechanisms, and the plurality of load-bearing mechanisms are connected in parallel and integrated, and the guide rail assembly is arranged along the end faces of the plurality of load-bearing mechanisms arranged in parallel. Each of the load-bearing mechanisms includes a load-bearing frame 11 and a detection plate 12, and the top end of the load-bearing frame 11 is fixedly connected with the detection plate 12. The end face of the detection plate 12 is flush with the end face of the load-bearing frame 11. Each of the detection plates 12 is provided with at least one set of clamps 13 for fixing the fitness bike to be tested.

[0042] It should be noted that each of the load-bearing frames 11 can be composed of 4 support legs and 8 cross bars, and each of the support legs is fixedly connected to each other by two cross bars, one cross bar connects the top ends of the two support legs, and one cross bar connects the bottom ends of the two support legs. The connection between the cross bars and the support legs is reinforced by a reinforcing member. The material, quantity and thickness of the support legs and cross bars are not limited in this embodiment, and are designed based on the load-bearing capacity and practical performance of the load-bearing frame 11.

[0043] In one embodiment of the present application, the power mechanism includes a frame 1, a torque testing assembly, a transmission assembly, a motor 2 and a control box 3; the torque testing assembly is fixedly arranged on the upper layer of the frame 1, and the transmission assembly is fixedly arranged on the lower layer of the frame 1; one end of the transmission assembly is connected to the motor 2, and the other end is connected to the torque testing assembly; the control box 3 is controlled and connected to the motor 2 and the torque testing assembly.

[0044] In a specific embodiment of the present application, the torque testing assembly includes a torque sensor 4, a driving crank 5 and an output transmission shaft 6; one end of the output transmission shaft 6 is transmission-connected to the motor 2, and the other end is detachably connected to the middle axis connector 21; the torque sensor 4 is fixedly connected to the output transmission shaft 6.

[0045] It should be noted that the torque sensor 4 is connected to the output transmission shaft 6 via a coupling. The coupling may be an elastic pin coupling or a rigid coupling.

[0046] In a specific embodiment of the present application, the transmission assembly includes a large synchronous wheel 7, a small synchronous wheel 8 and a transmission rod 9; one end of the transmission rod 9 is connected to the driving crank 5, and the other end is connected to the small synchronous wheel 8, and the large synchronous wheel 7 and the small synchronous wheel 8 are connected by a synchronous belt 10.

[0047] In a specific embodiment of the present application, the guide rail assembly includes a slide rail 14, a screw rod 15, a guide groove 16, a first slider group 17 and a track 18; the slide rail 14 is arranged along the longitudinal direction of several detection plates 12 side by side, and is fixedly connected to the load-bearing frame 11, and the screw rod 15 and the guide groove 16 are respectively fixedly connected to the load-bearing frame 11 through fixing parts; the slide rail 14, the screw rod 15 and the guide groove 16 are parallel to each other, and the screw rod 15 is arranged between the slide rail 14 and the guide groove 16; the slider is passed through the screw rod 15, and the track 18 is arranged in the guide groove 16 and is fixedly connected to the first slider group 17.

[0048] In a specific embodiment of the present application, the sliding assembly includes a second slider group 19 and a slide plate 20; the side of the slide plate 20 away from the load-bearing mechanism is fixedly provided with a frame 1 of the power mechanism; the side of the slide plate 20 close to the load-bearing mechanism is fixedly provided with the second slider group 19, and the second slider group 19 is slidably connected to the transmission mechanism.

[0049] The above device is to fix the fitness bike to be tested on the detection plate 12 through the clamp 13, and dynamically connect the torque test assembly and the fitness bike to be tested through the middle shaft connector 21. One end of the middle shaft connector 21 is connected to the driving joint of the fitness bike, and the other end is connected to the output transmission shaft 6 of the torque test assembly. During the test, the fitness bike is first rotated one circle by driving the crank 5, and the torque sensor 4 records the torque required to drive the fitness bike to rotate, and the torque upper limit value, lower limit value, test number of revolutions and test time are set to perform the test.

[0050] The above device has the following advantages: the torque upper and lower limits are set by the torque sensor 4, the test status of the sample can be monitored in real time, whether the sample is faulty can be automatically determined, and the test revolutions when the fault occurs can be recorded, with a high degree of automation; the sample automatically shuts down after a fault, which can avoid damage to the test instrument and the sample, and the test results are more accurate; the shaft connector can move up, down, left, and right, and can be used for fitness bikes of different structures; two modes of test time or revolutions can be set, and the test objects are wide.

[0051] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present application.

[0052] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0053] The above is a detailed introduction to a fitness bike fatigue testing device provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A fitness bike fatigue testing device, characterized in that: The device comprises a power mechanism, a load-bearing mechanism, a transmission mechanism and different types of central axis connectors, the transmission mechanism comprises a sliding assembly and a guide rail assembly, the guide rail assembly is fixedly connected to the load-bearing mechanism, one end of the sliding assembly is slidably connected to the guide rail assembly, and the other end is fixedly connected to the power mechanism; One end of the central axis connecting piece is detachably connected to the output transmission shaft of the power mechanism, and the other end is connected to the driving joint bearing of the fitness bicycle.

2. The fatigue testing device according to claim 1, characterized in that: The load-bearing mechanisms include a plurality of load-bearing mechanisms, which are connected in parallel and integrated, and the guide rail assembly is arranged along the end surfaces of the plurality of load-bearing mechanisms arranged in parallel.

3. The fatigue testing device according to claim 2, characterized in that: Each of the load-bearing mechanisms comprises a load-bearing frame and a detection plate, and the top end of the load-bearing frame is fixedly connected with the detection plate.

4. The fatigue testing device according to claim 3, characterized in that: The end surface of the detection plate is flush with the end surface of the load-bearing frame.

5. The fatigue testing device according to claim 4, characterized in that: Each of the detection plates is provided with at least one set of clamps for fixing the fitness bike to be tested.

6. The fatigue testing device according to claim 1, characterized in that: The power mechanism includes a frame, a torque test assembly, a transmission assembly, a motor and a control box; The torque testing assembly is fixedly arranged on the upper layer of the frame, and the transmission assembly is fixedly arranged on the lower layer of the frame; One end of the transmission assembly is connected to the motor, and the other end is connected to the torque testing assembly; The control box is in control connection with the motor and the torque testing assembly.

7. The fatigue testing device according to claim 6, characterized in that: The torque test assembly includes a torque sensor, a drive crank and an output transmission shaft; One end of the output transmission shaft is transmission-connected to the motor, and the other end is detachably connected to the middle shaft connector; The torque sensor is fixedly connected to the output transmission shaft.

8. The fatigue testing device according to claim 6, characterized in that: The transmission assembly includes a large synchronous wheel, a small synchronous wheel and a transmission rod; One end of the transmission rod is connected to the driving crank, and the other end is connected to the small synchronous wheel. The large synchronous wheel and the small synchronous wheel are connected through a synchronous belt.

9. The fatigue testing device according to claim 1, characterized in that: The guide rail assembly includes a slide rail, a lead screw, a guide groove, a first slider group and a crawler belt; The slide rail is arranged along the longitudinal direction of a plurality of detection plates arranged side by side, and is fixedly connected to the load-bearing frame, and the screw rod and the guide groove are respectively fixedly connected to the load-bearing frame through fixing members; The slide rail, the lead screw and the guide groove are parallel to each other, and the lead screw is arranged between the slide rail and the guide groove; The slider is inserted into the screw rod, and the crawler belt is arranged in the guide groove and is fixedly connected to the first slider group.

10. The fatigue testing device according to claim 1, characterized in that: The sliding assembly includes a second slider group and a slide plate; A frame of the power mechanism is fixedly arranged on a side of the slide away from the load-bearing mechanism; The second slider group is fixedly arranged on one side of the slide plate close to the load-bearing mechanism, and the second slider group is slidably connected to the transmission mechanism.

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