Rubber belt fatigue testing machine

Abstract

The invention provides a rubber belt fatigue testing machine, and belongs to the technical field of testing machines. The device comprises a rotating device, a rocker arm, a rubber belt, a main shaft, a swing rod, a connecting rod, a driving rod, a rotating disc and a driving device, the driving device drives the rotating disc to rotate, rotation of the rotating disc drives one end of the driving rod to reciprocate on the connecting rod, and then the swing rod is driven to swing back and forth. Reciprocating swing of the swing rod drives the spindle to rotate in a reciprocating mode, and then the rocker arm is driven to drive the rubber belt to swing around the rotating device in a reciprocating mode. The sliding block swing rod is adopted to replace an existing crank swing rod mechanism, the motion path of the swing rod is fitted through rotation and stretching of the driving rod around the circumference, and the effect of finally driving the main shaft to swing is achieved. The unbalance amount of a motion system can be reduced, the vibration is reduced, the noise is remarkably reduced, and the stability of the rubber belt fatigue testing machine and the accuracy of an experimental result are improved.

Description

Technical Field

[0001] The invention relates to the technical field of testing machines, and in particular to a rubber belt fatigue testing machine. Background Art

[0002] In the prior art, a rubber belt fatigue testing machine uses a motor reducer to drive a crank rocker mechanism to drive a rubber belt to reciprocate around a rotating shaft at a fixed angle to complete a fatigue test.

[0003] Due to the dynamic characteristics of the crank rocker mechanism in the prior art, there are certain fluctuations and vibrations during use, which not only brings about a lot of noise but also affects the reliability of the test results. In addition, due to its structural characteristics, the transmission system requires a large space to achieve motion conversion in actual applications, which limits the space of the equipment. Summary of the invention

[0004] In view of this, in order to solve the technical problems of vibration and noise in the crank-rocker mechanism in the prior art, the present invention provides a rubber belt fatigue testing machine, which adopts a "slider rocker" to replace the existing crank-rocker mechanism, and fits the motion path of the rocker by rotating and extending the driving rod around the circle, so as to achieve the effect of driving the main shaft to swing. It can reduce the imbalance of the motion system, reduce vibration and significantly reduce noise, and improve the stability of the rubber belt fatigue testing machine and the accuracy of the experimental results.

[0005] To achieve the above object, the present invention provides the following technical solutions: A rubber belt fatigue testing machine, comprising: Rotating device; Rocker arm; A rubber belt, which passes around the rotating device and has two ends connected to the rocker arm respectively; A main shaft connected to the rocker arm; A swing rod, one end of which is connected to the main shaft; A connecting rod connected to the other end of the swing rod; A driving rod, one end of which is slidably connected to the connecting rod; A rotating disk, one end of which is connected to the other end of the driving rod; A driving device, the output end of which is connected to the other end of the rotating disk; The driving device drives the rotating disk to rotate, and the rotation of the rotating disk drives one end of the driving rod to reciprocate on the connecting rod, thereby driving the swing rod to swing back and forth; The reciprocating swing of the swing rod drives the main shaft to reciprocate, thereby driving the rocker arm to drive the rubber belt to reciprocate around the rotating device.

[0006] Preferably, the main shaft drives the plurality of rocker arms to swing back and forth, driving the plurality of rubber belts to swing back and forth around the plurality of rotating devices respectively; A plurality of the rocker arms, rubber belts and rotating devices constitute a plurality of workstations.

[0007] Preferably, the rotating device comprises: cylinder; A hook connected to the output end of the cylinder; A pulley, rotatably connected to the hook; The rubber belt passes around the pulley to drive the pulley to reciprocate.

[0008] Preferably, the rocker arm and the rubber belt are connected via a clamping connecting rod.

[0009] Preferably, the clamping connecting rod and the rubber belt are clamped by a clamp.

[0010] Preferably, one end of the driving rod is sleeved on the connecting rod and can slide on the connecting rod, and the other end is inserted into the through hole on the rotating disk.

[0011] Preferably, the rocker rod is connected to the spindle key.

[0012] Preferably, the rocker arm is keyed to the spindle.

[0013] Preferably, a pressing wheel is further included for pressing the rubber belt.

[0014] Preferably, the driving device is a motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts a "slider swing rod" to replace the existing crank swing rod mechanism, and fits the motion path of the swing rod by rotating and extending the driving rod around the circle, so as to achieve the effect of driving the main shaft to swing. It can reduce the imbalance of the motion system, reduce vibration and significantly reduce noise, and improve the stability of the rubber belt fatigue testing machine and the accuracy of the experimental results.

[0016] The slider rocker type transmission structure of the present invention has a simple structure and convenient movement, and can facilitate the control and maintenance of the rubber belt fatigue testing machine while also reducing space occupation.

[0017] At the same time, since a plurality of rocker arms, rotating devices and rubber belts can be connected to the main shaft of the present invention, the present invention has the characteristics of multiple workstations. Different workstations can use different tension parameters to test belts of different specifications at the same time, thereby improving the efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the slider rocker type transmission structure of the present invention; Figure 2 It is a front view of the test part of the present invention; Figure 3 A front view of the multi-station rubber belt fatigue testing machine provided by the present invention; In the figure, 1. hook; 2. rubber belt; 3. clamping wheel; 4. clamp; 5. clamping connecting rod; 6. rocker arm; 7. main shaft; 8. cylinder; 9. rocker arm; 10. connecting rod; 11. driving rod; 12. rotating disk; 13. motor; 14. pulley. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1-2 As shown, the present invention provides a rubber belt fatigue testing machine, comprising: The rotating device is used to provide a rotating point for the rubber belt 2 described below to oscillate back and forth.

[0023] The rocker arm 6 is used to drive the rubber belt 2 described below to swing back and forth.

[0024] The rubber belt 2 passes around the rotating device, and both ends are connected to the rocker arm 6 respectively. Driven by the rocker arm 6, the rubber belt 2 can swing back and forth around the rotation point on the rotating device.

[0025] The main shaft 7 is connected to the rocker arm 6, preferably by a key connection, or by a connection method known in the art, to ensure that the main shaft 7 and the rocker arm 6 are fixedly connected, and that the reciprocating rotation of the main shaft 7 can drive the rocker arm 6 to swing back and forth.

[0026] One end of the swing rod 9 is connected to the main shaft 7, preferably by a key connection or by a connection method known in the art, to ensure that the reciprocating swing of the swing rod 9 can drive the main shaft 7 to rotate reciprocatingly.

[0027] The connecting rod 10 is connected to the other end of the rocker arm 9, preferably by a key connection or a connection method known in the art, to ensure a fixed connection between the rocker arm 9 and the main shaft 7, and to ensure that the rocker arm 9 drives the main shaft 7 to reciprocate.

[0028] The driving rod 11 has one end slidably connected to the connecting rod 10. That is, the driving rod 11 can slide on the connecting rod 10, thereby ensuring that the driving rod 11 can ensure the reciprocating swing of the swing rod 9. In the present invention, it is preferred that one end of the driving rod 11 is sleeved on the connecting rod 10 and can slide on the connecting rod 10, and the other end is inserted into the through hole on the rotating disk 12 described below.

[0029] One end of the rotating disk 12 is connected to the other end of the driving rod 11. The rotating disk 12 is preferably provided with a through hole for inserting the other end of the driving rod 11. There may be multiple through holes for inserting the other ends of multiple driving rods 11. The rotating disk 12 is preferably a circular disk.

[0030] A driving device, the output end of which is connected to the other end of the rotating disk 12; The driving device drives the rotating disk 12 to rotate, and the rotation of the rotating disk 12 drives one end of the driving rod 11 to reciprocate on the connecting rod 10, thereby driving the swing rod 9 to swing back and forth; The reciprocating swing of the swing rod 9 drives the main shaft 7 to rotate reciprocatingly, and further drives the rocker arm 6 to drive the rubber belt 2 to swing reciprocatingly around the rotating device.

[0031] like Figure 3 As shown, in the present invention, the main shaft 7 drives the plurality of rocker arms 6 to swing back and forth, driving the plurality of rubber belts 2 to swing back and forth around the plurality of rotating devices respectively; The plurality of rocker arms 6, rubber belts 2 and rotating devices constitute a plurality of workstations.

[0032] That is, the present invention realizes the test of the rubber belt 2 at multiple stations by connecting multiple rocker arms 6 , rotating devices and rubber belts 2 on the main shaft 7 .

[0033] In the present invention, the rotating device comprises: The cylinder 8 is used to provide different test forces for the rubber belt 2 .

[0034] The hook 1 is connected to the output end of the cylinder 8 and is used for the pulley 14 described below to rotate thereon.

[0035] A pulley 14 is rotatably connected to the hook 1; The rubber belt 2 passes around the pulley 14 to drive the pulley 14 to reciprocate.

[0036] In the present invention, the rocker arm 6 is connected to the rubber belt 2 via a clamping connecting rod 5. Preferably, the clamping connecting rod 5 and the rubber belt 2 are clamped by a clamp 4.

[0037] In the present invention, one end of the driving rod 11 is sleeved on the connecting rod 10 and can slide on the connecting rod 10 , and the other end is inserted into the through hole on the rotating disk 12 .

[0038] In the present invention, a pressing wheel 3 is further included to press the rubber belt 2 .

[0039] In the present invention, the driving device is a motor 13 .

[0040] The working process of the present invention is as follows: When the testing machine is started, the control console controls the motor 13 to start rotating. The motor 13 drives the rotating disk 12 to start rotating, and the driving rod 11 is inserted into the through hole on the rotating disk 12 and fits on the connecting rod 10. The connecting rod 10 and the two ends of the rocker 9 are fixed. The rotation of the rotating disk 12 eventually drives the rocker 9 to swing back and forth. The rocker 9 is key-connected to the main shaft 7, driving the main shaft 7 to swing, thereby driving the rocker arm 6 to follow the reciprocating swing. The two ends of the clamping connecting rod 5 are respectively connected to the rocker arm 6 and the clamp 4. The rubber belt 2 passes through the hook 1, the pulley 14 and the clamping wheel 3, and the two ends are clamped by the clamp 4. Finally, the reciprocating swing of the rocker arm 6 drives the reciprocating motion of the rubber belt 2, and the cylinder 8 pulls the hook 1 and the pulley 14 to provide an upward force.

[0041] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rubber belt fatigue testing machine, characterized in that: include: Rotating device; Rocker arm; A rubber belt, which passes around the rotating device and has two ends connected to the rocker arm respectively; A main shaft connected to the rocker arm; A swing rod, one end of which is connected to the main shaft; A connecting rod connected to the other end of the swing rod; A driving rod, one end of which is slidably connected to the connecting rod; A rotating disk, one end of which is connected to the other end of the driving rod; A driving device, the output end of which is connected to the other end of the rotating disk; The driving device drives the rotating disk to rotate, and the rotation of the rotating disk drives one end of the driving rod to reciprocate on the connecting rod, thereby driving the swing rod to swing back and forth; The reciprocating swing of the swing rod drives the main shaft to reciprocate, thereby driving the rocker arm to drive the rubber belt to reciprocate around the rotating device.

2. A rubber belt fatigue testing machine according to claim 1, characterized in that: The main shaft drives the plurality of rocker arms to swing back and forth, driving the plurality of rubber belts to swing back and forth around the plurality of rotating devices respectively; A plurality of the rocker arms, rubber belts and rotating devices constitute a plurality of workstations.

3. A rubber belt fatigue testing machine according to claim 1, characterized in that: The rotating device comprises: cylinder; A hook connected to the output end of the cylinder; A pulley, rotatably connected to the hook; The rubber belt passes around the pulley to drive the pulley to reciprocate.

4. A rubber belt fatigue testing machine according to claim 1, characterized in that: The rocker arm and the rubber belt are connected via a clamping connecting rod.

5. A rubber belt fatigue testing machine according to claim 4, characterized in that: The clamping connecting rod and the rubber belt are clamped by a clamp.

6. A rubber belt fatigue testing machine according to claim 1, characterized in that: One end of the driving rod is sleeved on the connecting rod and can slide on the connecting rod, and the other end is inserted into the through hole on the rotating disk.

7. A rubber belt fatigue testing machine according to claim 1, characterized in that: The rocker rod is connected with the spindle key.

8. The rubber belt fatigue testing machine according to claim 1, characterized in that: The rocker arm is keyed to the spindle.

9. The rubber belt fatigue testing machine according to claim 1, characterized in that: A pressing wheel is also included, which is used for pressing the rubber belt.

10. A rubber belt fatigue testing machine according to any one of claims 1 to 9, characterized in that: The driving device is a motor.

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