Throttle valve bearing endurance test device

Abstract

The invention discloses a throttle valve bearing endurance test device comprising a rack, the rack is provided with a plurality of driving shafts and a driving member used for driving a connecting shaft to rotate, the rack is provided with a test box corresponding to the driving shafts, and the test box is internally provided with a test bench. The driving shaft penetrates into the testing box and extends towards the testing table, a testing station used for assembling a bearing to be tested is formed between the testing table and the driving shaft, a liquid injection mechanism used for injecting acid liquid or distilled water and an air pump used for increasing and decreasing air pressure are arranged on the side wall of the testing box, and an air pressure sensor is further arranged in the testing box. The device is simple in structure, more reasonable in structural layout, good in detection effect and high in detection efficiency.

Description

Technical Field

[0001] The invention relates to a throttle bearing durability testing device. Background Art

[0002] The throttle needle roller bearing consists of an outer ring, an inner ring, a needle roller and a cage, and is mostly made of a stamped outer ring needle roller bearing. It relies on the rolling of the needle roller to achieve support and friction reduction, helping the throttle shaft to rotate smoothly. In the throttle system, it can accurately control the intake volume, reduce friction and energy consumption, bear the radial and axial loads during operation, and ensure the stable operation of the throttle. The sealing durability test of the throttle bearing under absolute air pressure is aimed at simulating the air pressure environment faced by the throttle at different altitudes and working conditions when the engine is running. With the help of the test, it can not only accurately detect whether its sealing structure can block the invasion of external gases and impurities and prevent grease leakage, but also evaluate the durability of the sealing components under the long-term action of different air pressure environments, and timely discover problems such as material fatigue and deformation. This test is the key to controlling product quality, which can screen out unqualified products and ensure the stability and reliability of the engine system. The existing detection device cannot perform sealing durability tests under absolute air pressure very well, has low adaptability, poor detection effect, and is not conducive to improving detection efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a throttle bearing durability test device, which has a simple structure, a more reasonable structural layout, a good detection effect, and a high detection efficiency.

[0004] To achieve the above-mentioned purpose, the present invention provides a throttle bearing durability test device, including a frame, on which are disposed a plurality of drive shafts and a drive member for driving the connecting shaft to rotate, a test box is disposed on the frame corresponding to the position of the drive shaft, a test bench is disposed in the test box, the drive shaft penetrates into the test box and extends toward the test bench, a test station for assembling a bearing to be tested is formed between the drive shafts on the test bench, an injection mechanism for injecting acid or distilled water and an air pump for increasing or decreasing air pressure are disposed on the side wall of the test box, and an air pressure sensor is also disposed in the test box.

[0005] The beneficial effect of this setting is: in terms of ensuring coaxiality and convenience, the integrated layout of the frame, drive shaft and test bench allows the drive shaft to accurately penetrate the test box and extend to the test bench. This design ensures that the components are strictly coaxial during the test, greatly reduces the test error caused by coaxiality deviation, ensures the accuracy of the test data, and can accurately control the forward and reverse rotation of the drive shaft through the drive motor, increase the comprehensiveness of the test, and control the rotation angle at the same time. At the same time, the modular design makes the installation and disassembly of each component easy and convenient, greatly improves the efficiency of test preparation and equipment maintenance, and reduces time costs. The ability to simulate complex working conditions is a highlight of the device. The equipment of the injection mechanism and the air pump enables the test to simulate various extreme environments. The air pump can realize the sinusoidal mode change of absolute air pressure, accurately simulate the air pressure fluctuations that the throttle bearing is subjected to under different working conditions, and make the test results more in line with the actual use scenario. The injection mechanism can inject acid or distilled water as needed to simulate the working state of the bearing in a humid or corrosive environment, providing strong support for studying the durability of the bearing under harsh conditions. The configuration of the air pressure sensor further improves the reliability and accuracy of the test. During the sinusoidal change of the air pressure, the sensor monitors the air pressure data in the test box in real time and feeds the data back to the control system. Based on the feedback information, the control system precisely regulates the air pump to ensure that the air pressure changes strictly according to the preset sinusoidal mode during the test, avoiding test errors or equipment damage caused by out-of-control air pressure, and comprehensively improving the stability and credibility of the test.

[0006] As a further configuration of the present invention, the output end of the driving member is transmission-connected to one of the driving shafts via a pulley, a matching gear is provided on the driving shaft, and a transmission belt is matched on the matching gear.

[0007] The beneficial effect of this arrangement is that with this arrangement, the output end of the drive component is connected to one of the drive shafts by means of a pulley. This connection method can not only buffer the impact force during operation and reduce equipment wear, but also cleverly maintain the smooth operation of the drive shaft. The mating gears on the drive shaft cooperate with the transmission belt to build a stable transmission system to ensure that each drive shaft can operate synchronously. During the test, the synchronization of each drive shaft is crucial to maintaining the accuracy of the test. This not only further improves the coaxiality of the overall device and effectively avoids test deviations caused by speed differences, but also the coordinated work of multiple drive shafts can simulate more complex work scenarios, making the test results more reliable. As a further configuration of the present invention, four drive shafts are provided, and the four drive shafts are distributed at the edge positions of the four corners of the frame. An adjustment groove is provided on the frame, and an adjustment shaft is slidably provided in the adjustment groove. The adjustment groove is matched with a resistance gear, and the tooth surface of the resistance gear is arranged close to the transmission belt. The adjustment shaft is also threadedly matched with a locking nut, and the locking nut is in resistance outside the adjustment groove. The locking nut cooperates with the end face of the resistance gear to form the locking or loosening of the adjustment shaft in the adjustment groove.

[0008] The beneficial effect of this arrangement is that the four drive shafts are distributed at the four corners of the frame, which greatly optimizes the overall force structure and makes the operation smoother. The frame is ingeniously designed with an adjustment slot, and the adjustment shaft in the slot can slide flexibly. By configuring the conflicting gear at the adjustment slot, its tooth surface is closely attached to the transmission belt, providing an effective point of force for adjusting the belt tension. The locking nut on the adjustment shaft can achieve precise control. When the belt tension needs to be adjusted, just loosen the locking nut, slide the adjustment shaft, and change the degree of conflict between the conflicting gear and the transmission belt, so that the belt tension can be easily fine-tuned. After the adjustment is completed, tighten the locking nut to match the end face of the conflicting gear and firmly lock the adjustment shaft in the adjustment slot. This ingenious design not only ensures that the transmission belt is always in a suitable tension state, maintains transmission stability, and reduces the risk of belt slippage, but also greatly extends the service life of the belt, and comprehensively guarantees the stable and efficient operation of the drive system.

[0009] As a further configuration of the present invention, the bottom surface of the test box is further provided with a drain port, the bottom surface of the frame is provided with a water receiving tray, and the drain port and the water receiving tray are connected via a drain pipe.

[0010] The beneficial effect of this arrangement is that the drain port on the bottom of the test box cooperates with the water tray on the bottom of the rack to build a convenient drainage collection system through the drain pipe. The position of the drain port is specially designed to facilitate the liquid in the box to flow into the drain pipe by gravity and then gather in the water tray. This system can not only quickly collect the acid and distilled water injected into the test box to avoid random spillage, but also has a simple structure and convenient operation, which greatly improves the efficiency of drainage collection before and after the test, making the test preparation and finishing work more efficient.

[0011] As a further configuration of the present invention, a liquid level window is provided on the side wall of the test box.

[0012] The beneficial effects of this setting are: With this setting, the liquid level window is made of transparent material and is in a conspicuous position, which is convenient for operators to visually observe the liquid level changes of acid and distilled water in the test box at any time. During the test, observing the liquid level through the liquid level window can avoid test data deviation caused by too high or too low liquid level, and ensure the accuracy of the test. In coordination with the drainage collection system, the operator can reasonably arrange the drainage operation according to the liquid level situation, making the control of the entire test process more accurate and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 is a schematic cross-sectional structure diagram of an embodiment of the present invention; Figure 3 It is a schematic diagram of the layout structure of the drive shaft and the transmission member according to an embodiment of the present invention. DETAILED DESCRIPTION

[0014] The embodiment of the throttle bearing durability test device of the present invention is as follows: Figures 1 to 3As shown: it includes a frame 1, on which a plurality of drive shafts 3 and a drive member 2 for driving the connecting shaft to rotate are arranged, on which a test box 4 is arranged corresponding to the position of the drive shaft 3, in which a test bench 41 is arranged, the drive shaft 3 penetrates into the test box 4 and extends to the test bench 41, and the test bench 41 forms a test station for assembling the bearing to be tested between the drive shafts 3, and the side wall of the test box 4 is provided with a liquid injection mechanism for injecting acid or distilled water and an air pump for increasing and decreasing air pressure, and the test box 4 is also provided with an air pressure sensor. The beneficial effect of such arrangement is that in such arrangement, in terms of ensuring coaxiality and convenience, the integrated layout of the frame 1, the drive shaft 3 and the test bench 41 allows the drive shaft 3 to accurately penetrate into the test box 4 and extend to the test bench 41. This design ensures that the components are strictly coaxial during the test process, greatly reduces the test error caused by coaxiality deviation, and ensures the accuracy of the test data. At the same time, the modular design makes the installation and disassembly of each component easy and convenient, greatly improving the efficiency of test preparation and equipment maintenance, and reducing time costs. The ability to simulate complex working conditions is a highlight of the device. The equipment of the injection mechanism and the air pump enables the test to simulate various extreme environments. The air pump can realize the sinusoidal mode change of absolute air pressure, accurately simulate the air pressure fluctuations that the throttle bearing is subjected to under different working conditions, and make the test results more in line with the actual use scenario. The injection mechanism can inject acid or distilled water as needed to simulate the working state of the bearing in a humid or corrosive environment, providing strong support for studying the durability of the bearing under harsh conditions. The configuration of the air pressure sensor further improves the reliability and accuracy of the test. During the sinusoidal change of air pressure, the sensor monitors the air pressure data in the test box 4 in real time and feeds the data back to the control system. Based on the feedback information, the control system accurately regulates the air pump to ensure that the air pressure changes strictly according to the preset sinusoidal mode during the test, avoiding test errors or equipment damage caused by air pressure loss, and comprehensively improving the stability and credibility of the test.

[0015] As a further configuration of the present embodiment, the output end of the driving member 2 is connected to one of the driving shafts 3 through a pulley 21, and a matching gear is provided on the driving shaft 3, and a transmission belt 31 is matched on the matching gear. The beneficial effect of such a configuration is that with such a configuration, the output end of the driving member 2 is connected to one of the driving shafts 3 through a transmission connection by means of the pulley 21. This connection method can not only buffer the impact force during operation and reduce equipment wear, but also cleverly maintain the smooth operation of the driving shaft 3. The matching gears configured on the driving shaft 3 cooperate with the transmission belt 31 to build a stable transmission system to ensure that each driving shaft 3 can operate synchronously. During the test, the synchronization of each driving shaft 3 is crucial to maintaining the accuracy of the test, which not only further improves the coaxiality of the overall device and effectively avoids test deviations caused by speed differences, but also multiple driving shafts 3 work together to simulate more complex working scenarios, making the test results more reliable. As a further configuration of this embodiment, the number of drive shafts 3 is four, and the four drive shafts 3 are distributed at the four corners of the frame 1. The frame 1 is provided with an adjustment slot 11, and an adjustment shaft 5 is slidably arranged in the adjustment slot 11. The adjustment slot 11 is matched with a conflicting gear, and the tooth surface of the conflicting gear is arranged close to the transmission belt 31. The adjustment shaft 5 is also threadedly matched with a locking nut, and the locking nut is in conflict with the outside of the adjustment slot 11. The locking nut cooperates with the end face of the conflicting gear to form the locking or loosening of the adjustment shaft 5 in the adjustment slot 11. The beneficial effect of such a configuration is that the four drive shafts 3 are distributed at the four corners of the frame 1, which greatly optimizes the overall force structure and makes the operation more stable. The adjustment slot 11 is ingeniously designed on the frame 1, and the adjustment shaft 5 in the slot can slide flexibly. By configuring the conflicting gear at the adjustment slot 11, its tooth surface is closely attached to the transmission belt 31, which provides an effective point of force for adjusting the belt tension. The locking nut on the adjustment shaft 5 can achieve precise control. When the belt tension needs to be adjusted, just loosen the locking nut, slide the adjustment shaft 5, and change the degree of resistance of the interference gear to the transmission belt 31, so that the belt tension can be easily fine-tuned. After the adjustment is completed, tighten the locking nut to match it with the end face of the interference gear, and firmly lock the adjustment shaft 5 in the adjustment slot 11. This ingenious design not only ensures that the transmission belt 31 is always in a suitable tension state, maintains transmission stability, and reduces the risk of belt slippage, but also greatly extends the service life of the belt, and comprehensively guarantees the stable and efficient operation of the drive system.

[0016] As a further configuration of this embodiment, the bottom surface of the test box 4 is also provided with a drain port, and the bottom surface of the frame 1 is provided with a water receiving tray 12, and the drain port and the water receiving tray 12 are connected via a drain pipe. The beneficial effect of such a configuration is that, with such a configuration, the drain port on the bottom surface of the test box 4 cooperates with the water receiving tray 12 on the bottom surface of the frame 1 to build a convenient drainage collection system through the drain pipe. The position of the drain port is specially designed to facilitate the liquid in the box to flow into the drain pipe by gravity, and then converge into the water receiving tray 12. This system can not only quickly collect the acid and distilled water injected into the test box 4 to avoid random spillage, but also has a simple structure and convenient operation, which greatly improves the drainage collection efficiency before and after the test, making the test preparation and finishing work more efficient.

[0017] As a further configuration of this embodiment, a liquid level window 42 is provided on the side wall of the test box 4. The beneficial effect of such configuration is that the liquid level window 42 is made of a transparent material and is located in a conspicuous position, so that the operator can observe the liquid level changes of the acid solution and distilled water in the test box 4 at any time. During the test, observing the liquid level through the liquid level window can avoid the deviation of the test data caused by the liquid level being too high or too low, and ensure the accuracy of the test. In cooperation with the drainage collection system, the operator can reasonably arrange the drainage operation according to the liquid level situation, so that the control of the entire test process is more accurate and the work efficiency is improved.

[0018] The above example is only one preferred specific example of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A throttle bearing durability test device, comprising a frame, characterized in that: The frame is provided with a plurality of drive shafts and a drive member for driving the connecting shaft to rotate, the frame is provided with a test box corresponding to the position of the drive shaft, the test box is provided with a test bench, the drive shaft penetrates into the test box and extends to the test bench, the test bench is provided with a test station for assembling the bearing to be tested between the drive shafts, the side wall of the test box is provided with a liquid injection mechanism for injecting acid or distilled water and an air pump for increasing or decreasing the air pressure, and the test box is also provided with an air pressure sensor.

2. The throttle bearing durability test device according to claim 1, characterized in that: The output end of the driving member is connected to one of the driving shafts through a pulley, and a matching gear is provided on the driving shaft, and a driving belt is matched on the matching gear.

3. The throttle bearing durability test device according to claim 2, characterized in that: There are four drive shafts, which are distributed at the four corners of the frame. The frame is provided with an adjustment slot, in which an adjustment shaft is slidably arranged. The adjustment slot is equipped with a resistance gear, and the tooth surface of the resistance gear is arranged close to the transmission belt. The adjustment shaft is also threadedly equipped with a locking nut, which is in resistance outside the adjustment slot. The locking nut cooperates with the end face of the resistance gear to lock or loosen the adjustment shaft in the adjustment slot.

4. The throttle bearing durability test device according to claim 1, characterized in that: The bottom surface of the test box is also provided with a drain port, the bottom surface of the frame is provided with a water receiving tray, and the drain port and the water receiving tray are connected through a drain pipe.

5. The throttle bearing durability test device according to claim 1, characterized in that: A liquid level window is arranged on the side wall of the test box.

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