Belt wheel disc testing mechanism

Abstract

The utility model discloses a belt wheel disc testing mechanism which comprises a bottom plate, a first support and a second support are fixedly installed on the bottom plate, a hysteresis brake is fixedly installed on the first support, and a second belt wheel is rotatably installed on the hysteresis brake. A middle shaft assembly is rotationally installed on the second support, a first belt wheel and a first chain wheel are fixedly installed at the two ends of the middle shaft assembly respectively, and a belt is arranged between the first belt wheel and the second belt wheel; a motor is fixedly installed on the bottom plate, a second chain wheel is fixedly installed at the output end of the motor, and a chain is arranged between the second chain wheel and the first chain wheel. Compared with the prior art, the belt wheel disc testing mechanism provided by the utility model can simulate the actual running state of bicycle belt wheel transmission, realizes simulation testing to ensure that the testing result is accurate and reliable, is simple to operate, and brings great convenience to the belt wheel transmission testing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pulley transmission, and particularly relates to a pulley disc testing mechanism. BACKGROUND

[0002] Pulley transmission is a widely used technology in mechanical transmission systems, and its main feature is to use pulley flexible connection to transmit power, which can realize power change and smooth transmission.

[0003] The pulley transmission scheme of the E-bike bicycle has become a common scheme, and the service life of the pulley transmission needs to be tested when using the pulley transmission. At present, the pulley transmission is generally tested by being mounted on the bicycle, and the assembly and testing operation are difficult, which leads to the inconvenience of pulley transmission testing.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a pulley disc testing mechanism.

[0005] The information disclosed in the background section of this document is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a pulley disc testing mechanism, which can solve the problem that the pulley transmission is mounted on the bicycle for testing, the assembly and testing operation are difficult, and the pulley transmission testing is very inconvenient.

[0007] In order to achieve the above purpose, the technical scheme provided by an embodiment of the utility model is as follows:

[0008] A pulley disc testing mechanism comprises a bottom plate, a first support and a second support are fixedly installed on the bottom plate respectively, a magnetic hysteresis brake is fixedly installed on the first support, a second pulley is rotatably installed on the magnetic hysteresis brake;

[0009] A middle shaft assembly is rotatably installed on the second support, a first pulley and a first sprocket are fixedly installed at both ends of the middle shaft assembly respectively, and a belt is arranged between the first pulley and the second pulley.

[0010] A motor is fixedly installed on the bottom plate, a second sprocket is fixedly installed at the output end of the motor, and a chain is arranged between the second sprocket and the first sprocket.

[0011] In one or more embodiments of the utility model, a rotating shaft is arranged on the magnetic hysteresis brake, and a rotating shaft is fixedly installed on the rotating shaft.

[0012] In one or more embodiments of the utility model, the second pulley is rotatably installed with a mounting sleeve, and the mounting sleeve is slidably sleeved on the rotating shaft.

[0013] A locking assembly is arranged on the mounting sleeve.

[0014] In one or more embodiments of the utility model, the locking assembly comprises a locking bolt, a screw hole is formed in the mounting sleeve, the locking bolt is screwed in the screw hole, and one end of the locking bolt is tightly fixed with the rotating shaft.

[0015] In one or more embodiments of the utility model, a fixed plate is fixedly installed on the magnetic hysteresis brake, and a mounting seat is fixedly installed on the fixed plate.

[0016] A pair of guide rods are fixedly installed on the first support, and the mounting seat is slidably installed on the pair of guide rods.

[0017] In one or more embodiments of the utility model, a lead screw is rotatably installed on the first support, and a lead hole is formed in the mounting seat, and the lead screw penetrates through the lead hole.

[0018] In one or more embodiments of the utility model, a knob is fixedly installed at one end of the lead screw.

[0019] In one or more embodiments of the utility model, a limiting plate is fixedly installed on the first pulley.

[0020] In one or more embodiments of the utility model, the diameter ratio of the first pulley to the second pulley is 5:1.

[0021] In one or more embodiments of the utility model, the first sprocket and the second sprocket have equal diameters.

[0022] Compared with the prior art, the pulley disc testing mechanism can simulate the actual running state of the bicycle pulley transmission, realize simulation test, ensure the accuracy and reliability of the test results, and is simple to operate, thereby greatly facilitating the pulley transmission test. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0024] Figure 1 Structure of a pulley disc testing mechanism in an embodiment of the utility model Figure 1;

[0025] Figure 2 For the embodiment of the utility model a wheel disk test mechanism structure Figure 2 ;

[0026] Figure 3 For the embodiment of the utility model a wheel disk test mechanism Figure 1 The first use state amplification view of A in the middle;

[0027] Figure 4 For the embodiment of the utility model a wheel disk test mechanism Figure 1 The local explosion state amplification view of A in the middle;

[0028] Figure 5 For the embodiment of the utility model a wheel disk test mechanism partial amplification view.

[0029] Main figure mark explanation:

[0030] 10, bottom plate, 20, first support, 21, guide rod, 22, screw rod, 221, knob, 30, magnetic hysteresis brake, 31, fixed plate, 311, mounting seat, 40, belt, 50, second support, 60, middle shaft assembly, 61, first pulley, 611, limiting plate, 62, first sprocket, 70, motor, 71, second sprocket, 80, chain, 90, rotating shaft, 100, second pulley, 101, mounting sleeve, 1011, screw hole, 110, locking bolt. Specific implementation

[0031] In order to make the personnel in the technical field better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor should belong to the protection scope of the utility model.

[0032] As Figures 1-5 The utility model discloses an embodiment of a wheel disk test mechanism, including bottom plate 10, the both sides of bottom plate 10 top are fixedly installed with first support 20 and second support 50 respectively, and the middle shaft assembly 60 is rotatably installed on second support 50 through bearing, and the both ends of middle shaft assembly 60 are fixedly installed with first pulley 61 and first sprocket 62 respectively, and the belt 40 is arranged between first pulley 61 and second pulley 100, and the belt transmission structure is formed by belt 40, first pulley 61 and second pulley 100.

[0033] The first pulley 61 is fixedly installed with a limiting plate 611, which can block the belt 40 to ensure the stability of the structure.

[0034] Preferably, the ratio of the diameters of the first pulley 61 and the second pulley 100 is 5:1, which can more truly simulate the pulley transmission of an automatic vehicle.

[0035] The bottom plate 10 is fixedly installed with a motor 70 at the middle position of the top end, and the output end of the motor 70 is fixedly installed with a second sprocket 71. The second sprocket 71 and the first sprocket 62 are provided with a chain 80, and the second sprocket 71, the first sprocket 62 and the chain 80 constitute a sprocket transmission structure. The motor 70 drives the pulley transmission structure to operate through the sprocket transmission structure.

[0036] Preferably, the diameters of the first sprocket 62 and the second sprocket 71 are equal, which can realize equal proportion transmission of power and will not cause power loss.

[0037] The first support 20 is fixedly installed with a hysteresis brake 30 above. The hysteresis brake 30 is a torque control component using the hysteresis principle, which is well known to those skilled in the art and will not be described in detail here.

[0038] As shown in Figures 1-3 , the hysteresis brake 30 is provided with a rotating shaft at the center axis, and the rotating shaft is fixedly installed with a rotating shaft 90 on one side. The second pulley 100 is rotatably installed with a mounting sleeve 101, and the mounting sleeve 101 is slidably sleeved on the rotating shaft 90, that is, the second pulley 100 is slidably assembled on the rotating shaft 90 through the mounting sleeve 101, and the second pulley 100 can freely rotate.

[0039] As shown in Figure 3 and Figure 4 , the mounting sleeve 101 is provided with a locking assembly, which includes a locking bolt 110. The mounting sleeve 101 is provided with a threaded hole 1011, and the second pulley 100 is threadedly connected with the threaded hole 1011. The locking bolt 110 is screwed into the threaded hole 1011, and one end of the locking bolt 110 is tightly fixed with the rotating shaft 90, so as to realize the locking between the mounting sleeve 101 and the rotating shaft 90, and ensure that the mounting sleeve 101 will not be offset when the second pulley 100 rotates.

[0040] By using this assembly method, the position of the second pulley 100 can be adjusted to ensure that the rotating shaft 90 and the first pulley 61 can be in the same plane during testing.

[0041] Specifically, by loosening the locking bolt 110, the locking effect between the mounting sleeve 101 and the rotating shaft 90 is lost, so that the mounting sleeve 101 can slide on the rotating shaft 90, thereby enabling the second pulley 100 to slide on the rotating shaft 90 to adjust the position, and ensuring that the rotating shaft 90 and the first pulley 61 are in the same plane.

[0042] As shown in Figure 5 The bottom end of the hysteresis brake 30 is fixedly provided with a fixed plate 31, and the bottom end of the fixed plate 31 is fixedly provided with a mounting seat 311. A pair of guide rods 21 are fixedly arranged on the first support 20, and a pair of through holes matched with the guide rods 21 are arranged on the mounting seat 311, so that the mounting seat 311 is slidably arranged on the pair of guide rods 21.

[0043] A lead screw 22 is rotatably arranged on the first support 20, and a screw hole is arranged on the mounting seat 311, and the lead screw 22 penetrates through the screw hole. By rotating the lead screw 22, the mounting seat 311 can be driven to slide on the pair of guide rods 21, so that the hysteresis brake 30 can be moved and adjusted to tension the belt 40, and ensure the accuracy of the test result.

[0044] One end of the lead screw 22 is fixedly provided with a knob 221, so as to facilitate manual rotation of the lead screw 22 and enhance operability.

[0045] In use, the motor 70 drives the central shaft assembly 60 to rotate through the chain wheel transmission structure, so as to drive the first pulley 61 to rotate, and the first pulley 61 drives the second pulley 100 to rotate through the belt 40, and the hysteresis brake 30 provides a load for the second pulley 100, so as to simulate the actual running state of the bicycle pulley transmission, and realize simulation test of the service life of the pulley transmission.

[0046] Compared with the prior art, the pulley disc test mechanism can simulate the actual running state of the bicycle pulley transmission, realize simulation test, ensure the accuracy and reliability of the test result, and is simple to operate, thereby bringing great convenience to the pulley transmission test.

[0047] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims to which they relate.

[0048] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A wheel disc testing mechanism, characterized by, Including the bottom plate, first support and second support are fixedly installed on the bottom plate respectively, the first support is fixedly installed with hysteresis brake on, the second pulley is rotatably installed on the hysteresis brake; The middle shaft assembly is rotatably installed on the second support, and the first pulley and the first sprocket are fixedly installed on both ends of the middle shaft assembly respectively, and the belt is arranged between the first pulley and the second pulley. The motor is fixedly installed on the bottom plate, the output end of the motor is fixedly installed with the second sprocket, and the chain is arranged between the second sprocket and the first sprocket.

2. A wheel testing mechanism according to claim 1, wherein The hysteresis brake is provided with a rotating shaft, and the rotating shaft is fixedly installed with a rotating shaft.

3. A wheel testing mechanism according to claim 2, wherein The mounting sleeve is rotatably installed on the second pulley, and the mounting sleeve is slidably sleeved on the rotating shaft. The mounting sleeve is provided with a locking assembly.

4. A wheel testing mechanism according to claim 3, wherein The locking assembly includes a locking bolt, a screw hole is formed in the mounting sleeve, the locking bolt is screwed in the screw hole, and one end of the locking bolt is tightly fixed with the rotating shaft.

5. A wheel testing mechanism according to claim 1, wherein The hysteresis brake is fixedly installed with a fixed plate, and the fixed plate is fixedly installed with a mounting seat. A pair of guide rods are fixedly installed on the first support, and the mounting seat is slidably installed on the pair of guide rods.

6. A wheel testing mechanism according to claim 5, wherein The mounting seat is provided with a screw hole, and the screw rod penetrates through the screw hole.

7. A wheel testing mechanism according to claim 6, wherein One end of the screw rod is fixedly installed with a knob.

8. A wheel testing mechanism according to claim 1, wherein The first pulley is fixedly installed with a limiting plate.

9. A wheel testing mechanism according to claim 1, wherein The diameter ratio of the first pulley to the second pulley is 5:

1.

10. A wheel testing mechanism according to claim 1, wherein The first sprocket and the second sprocket are equal in diameter.

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