Comprehensive test board for window wiper of motor train unit

Abstract

The invention relates to the technical field of window wipers, in particular to a comprehensive test board for a window wiper of a motor train unit, which comprises a working table, a control table is fixedly arranged at the top of the working table, a test box is arranged on one side of the control table, an exhaust port is formed in the side surface of the test box, and a driving tool for controlling the window wiper to swing is arranged in the test box. A testing mechanism used for detecting whether the window wiper is qualified or not is arranged above the driving tool. When the air blower is started, the extending end of the air cylinder is in the longest state, the baffle plate is in the horizontal state due to the elastic effect of the spring hinge, at the moment, the piston blocks the output end of the water inlet pipe, high-speed airflow passes through the L-shaped air inlet pipe and is blown out through the spray head, the driving tool is started, and the window wiper swings; the camera can conveniently transmit swing data of the window wiper in a high-speed airflow environment to the console, a real working scene is simulated, and the accuracy of the swing data of the window wiper in the working process is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of windshield wipers, in particular to a comprehensive test bench for windshield wipers of electric train sets. Background Art

[0002] The windshield wiper includes an electric motor, a reducer, a four-bar linkage, a wiper arm spindle, a wiper blade, etc. When the driver presses the switch of the wiper, the electric motor starts, and the speed of the electric motor drives the swing arm through the deceleration and torque increase effect of the worm gear, and the swing arm drives the four-bar linkage, and the four-bar linkage drives the shaft installed on the front panel to swing left and right, and finally the shaft drives the wiper blade to wipe the windshield;

[0003] During the production process of EMU windshield wipers, their quality needs to be tested to see if they are qualified. The existing swing arm test is performed by pressing the swing arm through an external pressing structure. The swing arm is subjected to airflow resistance during operation, and the force on the swing arm is relatively uniform, which is different from the existing technology and affects the accuracy of the test data. At the same time, when testing the swing arm in a simulated rainy environment, the camera used to observe the swing arm movement data is easily corroded by moisture, which can easily affect the efficiency of subsequent data collection. Summary of the invention

[0004] The technical problems solved by this solution are:

[0005] (1) How to solve the problem that the swing arm is subjected to airflow resistance during operation, the force on the swing arm is relatively uniform, which is different from the existing technology and affects the accuracy of the detection data;

[0006] (2) How to solve the problem that when detecting the swing arm in a simulated rainy environment, the camera used to observe the swing arm's motion data is easily corroded by water, which easily affects its subsequent data collection efficiency.

[0007] The object of the present invention can be achieved by the following technical scheme: a comprehensive test bench for windshield wipers of electric trains, comprising a workbench, a console is fixedly arranged on the top of the workbench, a test box is arranged on one side of the console, an exhaust port is opened on the side of the test box, and a driving tool for controlling the swing of the windshield wiper is arranged inside the test box, the driving tool is a prior art, and a test mechanism for detecting whether the windshield wiper is qualified is arranged above the driving tool;

[0008] The testing mechanism includes a transfer cylinder fixedly arranged on the inner wall of the testing box, a water pipe is connected to the side of the transfer cylinder, an L-shaped air inlet pipe is arranged on one side of the transfer cylinder, a shielding unit for blocking the exhaust port is arranged on the side of the transfer cylinder away from the L-shaped air inlet pipe, and a water inlet pipe is connected to the top of the transfer cylinder.

[0009] A further technical improvement of the present invention is that the output end of the L-shaped air inlet pipe is connected to a nozzle, the nozzle is arranged toward the wiper, and the output end of the water pipe is connected to the end of the L-shaped air inlet pipe close to the nozzle.

[0010] A further technical improvement of the present invention is that a laterally arranged cylinder is fixedly installed on the side wall of the test box, the protruding end of the cylinder movably penetrates the test box and is fixedly connected to a push-pull rod, one end of the push-pull rod movably penetrates the transfer cylinder and is fixedly installed with a piston, the position of the piston corresponds to the position of the output end of the water inlet pipe, and the thickness of the piston is greater than the inner diameter of the water inlet pipe; when the blower is turned on, the protruding end of the cylinder is in the longest state, and due to the elastic action of the spring hinge, the baffle is in a horizontal state. At this time, the piston blocks the output end of the water inlet pipe, and the high-speed airflow blown out from the blower passes through the L-shaped air inlet pipe, is blown out through the nozzle and then discharged through the exhaust port, and the driving tooling is turned on to make the wiper swing, so that the camera can transmit the data of the wiper swinging in the high-speed airflow environment to the console, simulating the real working scene and ensuring the accuracy of the swing data of the wiper during operation.

[0011] A further technical improvement of the present invention is that the shielding unit includes a spring hinge fixedly connected to the inner wall of the test box, one end of the spring hinge is fixedly connected to a shielding plate, a sealing ring is fixedly provided at the bottom of the shielding plate, the position of the sealing ring corresponds to the position of the exhaust port, and a lens is fixedly installed on the back of the shielding plate.

[0012] A further technical improvement of the present invention is that a groove is provided on the inner wall of the test box on one side of the exhaust port, a tilted camera is fixedly installed in the groove, the camera is set toward the wiper, and the output end of the camera is electrically connected to the input end of the console, a rubber ring is provided at the opening of the groove, and the position of the groove corresponds to the position of the lens.

[0013] A further technical improvement of the present invention is that an L-shaped rotating rod is rotatably provided on the top of the inner wall of the test box through a connecting frame, and a roller is rotatably provided on one end of the L-shaped rotating rod, and the roller is rollingly connected to the top of the baffle plate, and a lever is fixedly provided on the middle part of the push-pull rod, and the lever is slidingly connected to the middle part of the L-shaped rotating rod; by controlling the extended end of the cylinder to shrink to the shortest, the piston is separated from the output end of the water inlet pipe, so that the clean water in the water storage tank is injected into the nozzle through the water delivery pipe, and the high-speed air flow containing moisture is blown toward the wiper and the glass plate through the nozzle. In this process, the lever provides the L-shaped rotating rod with a pressing and flipping power, so that the baffle plate rotates, and the sealing ring is used to block the exhaust port. At the same time, the lens blocks the groove, and cooperates with the rubber ring to prevent moisture from eroding the camera. The camera can also observe through the lens to simulate the working efficiency and swing data of the wiper in a rainy environment.

[0014] A further technical improvement of the present invention is that a water tank is fixedly installed on the top of the test box, the bottom of the water tank is connected to the input end of the water inlet pipe, and a blower is fixedly arranged on the top of the test box on one side of the water tank, and the output end of the blower is connected to the input end of the L-shaped air inlet pipe.

[0015] A further technical improvement of the present invention is that a recovery pipe is connected to the outer wall of the test box below the exhaust port, a recovery barrel is fixedly installed on the side of the workbench, and the output end of the recovery pipe is located in the inner cavity of the recovery barrel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the present invention is in use, when the blower is turned on, the extended end of the cylinder is in the longest state. Due to the elastic effect of the spring hinge, the baffle is in a horizontal state. At this time, the piston blocks the output end of the water inlet pipe, and the high-speed airflow blown out from the blower passes through the L-shaped air inlet pipe, is blown out through the nozzle and then discharged through the exhaust port. The driving tooling is turned on to make the wiper swing, so that the camera can transmit the data of the swing of the wiper in the high-speed airflow environment to the control console, simulating the real working scene and ensuring the accuracy of the swing data of the wiper during operation.

[0018] When the present invention is in use, the extended end of the cylinder is controlled to shrink to the shortest, and the piston is separated from the output end of the water inlet pipe, so that the clean water in the water tank is injected into the nozzle through the water pipe, and the high-speed airflow containing water is blown toward the wiper and the glass plate through the nozzle. In this process, the lever provides the L-shaped rotating rod with a pressing and flipping power, so that the baffle plate rotates, and the sealing ring is used to block the exhaust port. At the same time, the lens blocks the groove, and cooperates with the rubber ring to prevent moisture from corroding the camera. The camera can also observe through the lens to simulate the working efficiency and swing data of the wiper in a rainy environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall front structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the testing mechanism of the present invention;

[0023] Figure 4 It is a three-dimensional schematic diagram of the local structure of the testing mechanism of the present invention;

[0024] Figure 5This is a schematic diagram of the shielding unit structure of the present invention;

[0025] Figure 6 It is a three-dimensional schematic diagram of the local structure of the shielding unit of the present invention.

[0026] In the figure: 1. control console; 2. water storage tank; 3. test box; 4. recovery barrel; 5. box door; 6. workbench; 7. regulating tooling; 8. testing mechanism; 9. driving tooling; 10. recovery pipe; 11. blower; 12. exhaust port; 81. water inlet pipe; 82. cylinder; 83. shielding unit; 84. nozzle; 85. L-shaped air inlet pipe; 86. water pipe; 87. transfer cylinder; 88. push-pull rod; 89. lever; 831. connecting frame; 832. roller; 833. L-shaped rotating rod; 834. spring hinge; 835. groove; 836. camera; 837. shielding plate; 838. lens; 839. sealing ring. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 6 As shown, a comprehensive test bench for windshield wipers of electric trains comprises a workbench 6, a control console 1 is fixedly arranged on the top of the workbench 6, a test box 3 is arranged on one side of the control console 1, an exhaust port 12 is opened on the side of the test box 3, and a driving fixture 9 for controlling the swing of the wiper is arranged inside the test box 3, the driving fixture 9 is the prior art, and a testing mechanism 8 for detecting whether the wiper is qualified is arranged above the driving fixture 9.

[0029] See also Figure 3 and Figure 4 As shown, the above-mentioned testing mechanism 8 includes a transfer cylinder 87 fixedly arranged on the inner wall of the testing box 3, the side of the transfer cylinder 87 is connected with a water pipe 86, and one side of the transfer cylinder 87 is provided with an L-shaped air inlet pipe 85, and the side of the transfer cylinder 87 away from the L-shaped air inlet pipe 85 is provided with a shielding unit 83 for blocking the exhaust port 12, and the top of the transfer cylinder 87 is connected with a water inlet pipe 81.

[0030] See also Figure 3 As shown, the output end of the L-shaped air inlet pipe 85 is connected to a nozzle 84 , and the nozzle 84 is arranged toward the wiper. The output end of the water pipe 86 is connected to the end of the L-shaped air inlet pipe 85 close to the nozzle 84 .

[0031] See also Figure 3As shown, a laterally arranged cylinder 82 is fixedly installed on the side wall of the above-mentioned test box 3, and the protruding end of the cylinder 82 movably penetrates the test box 3 and is fixedly connected with a push-pull rod 88, and one end of the push-pull rod 88 movably penetrates the transfer cylinder 87 and is fixedly installed with a piston, the position of the piston corresponds to the position of the output end of the water inlet pipe 81, and the thickness of the piston is greater than the inner diameter of the water inlet pipe 81; when the blower 11 is turned on, the protruding end of the cylinder 82 is in the longest state, and due to the elastic effect of the spring hinge 834, the baffle 837 is in a horizontal state. At this time, the piston blocks the output end of the water inlet pipe 81, and the high-speed airflow blown out from the blower 11 passes through the L-shaped air inlet pipe 85, is blown out through the nozzle 84 and then discharged in conjunction with the exhaust port 12, and the driving tooling 9 is turned on to make the wiper swing, so that the camera 836 can transmit the data of the wiper swinging in the high-speed airflow environment to the console 1, simulating the real working scene and ensuring the accuracy of the swing data of the wiper during operation.

[0032] See also Figure 3 and Figure 4 As shown, the above-mentioned shielding unit 83 includes a spring hinge 834 fixedly connected to the inner wall of the test box 3, one end of the spring hinge 834 is fixedly connected to a shielding plate 837, a sealing ring 839 is fixedly provided at the bottom of the shielding plate 837, the position of the sealing ring 839 corresponds to the position of the exhaust port 12, and a lens 838 is fixedly installed on the back of the shielding plate 837.

[0033] See also Figure 3 and Figure 5 As shown, a groove 835 is provided on the inner wall of the test box 3 on one side of the exhaust port 12, and a tilted camera 836 is fixedly installed in the groove 835. The camera 836 is set toward the wiper, and the output end of the camera 836 is electrically connected to the input end of the console 1. A rubber ring is provided at the opening of the groove 835, and the position of the groove 835 corresponds to the position of the lens 838.

[0034] See also Figure 4 and Figure 5As shown, the top of the inner wall of the test box 3 is rotatably provided with an L-shaped rotating rod 833 through a connecting frame 831, and one end of the L-shaped rotating rod 833 is rotatably provided with a roller 832, and the roller 832 is rollingly connected with the top of the shielding plate 837, and a lever 89 is fixedly provided in the middle of the push-pull rod 88, and the lever 89 is slidingly connected with the middle of the L-shaped rotating rod 833; by controlling the extended end of the cylinder 82 to be contracted to the shortest, the piston is separated from the output end of the water inlet pipe 81, so that the clean water in the water storage tank 2 is injected into the nozzle 8 through the water delivery pipe 86 4, a high-speed airflow containing moisture is blown toward the wiper and the glass plate through the nozzle 84. In this process, the lever 89 provides a pressing and flipping power to the L-shaped rotating rod 833, so that the shielding plate 837 rotates, and the sealing ring 839 blocks the exhaust port 12. At the same time, the lens 838 blocks the groove 835 and cooperates with the rubber ring to prevent moisture from corroding the camera 836. The camera 836 can also observe through the lens 838 to simulate the working efficiency and swing data of the wiper in a rainy environment.

[0035] See also Figure 2 and Figure 3 As shown, a water tank 2 is fixedly installed on the top of the above-mentioned test box 3, the bottom of the water tank 2 is connected to the input end of the water inlet pipe 81, and a blower 11 is fixedly arranged on the top of the test box 3 on one side of the water tank 2, and the output end of the blower 11 is connected to the input end of the L-shaped air inlet pipe 85.

[0036] See also Figure 1 As shown, a recovery pipe 10 is connected to the outer wall of the test box 3 below the exhaust port 12 , a recovery barrel 4 is fixedly installed on the side of the workbench 6 , and the output end of the recovery pipe 10 is located in the inner cavity of the recovery barrel 4 .

[0037] See also Figure 1 As shown, a regulating fixture 7 for testing whether the wiper blade is loose is arranged on the top of the workbench 6 away from the test box 3 . The regulating fixture 7 is a prior art. A box door 5 is hinged on the front of the test box 3 .

[0038] See also Figure 1 As shown, a glass plate for simulating the windshield of a train set is also fixedly mounted on the top of the driving tool 9, and the wiper blade of the wiper is in contact with the glass plate.

[0039] Working principle: When the present invention is used, first, Figure 1 and Figure 2 As shown, the glass plate and the wiper are fixedly mounted on the corresponding parts of the driving tool 9, the box door 5 is closed, and the blower 11 is turned on. Figure 3 and Figure 5As shown, the extended end of the cylinder 82 is in the longest state. Due to the elastic effect of the spring hinge 834, the shielding plate 837 is in a horizontal state. At this time, the piston blocks the output end of the water inlet pipe 81, as shown in FIG. Figure 3 and Figure 4 As shown, the high-speed airflow blown out from the blower 11 passes through the L-shaped air inlet pipe 85, is blown out through the nozzle 84 and then discharged through the exhaust port 12, and the driving tool 9 is turned on to make the wiper swing, so that the camera 836 can transmit the data of the wiper swinging in the high-speed airflow environment to the console 1, simulating a real working scene and ensuring the accuracy of the wiper swinging data during the working process; Figure 3 and Figure 5 As shown in FIG. 1 , when a rainy day environment needs to be simulated, the extended end of the cylinder 82 is controlled to be contracted to the shortest, and the piston is separated from the output end of the water inlet pipe 81, so that the clean water in the water storage tank 2 is injected into the nozzle 84 through the water delivery pipe 86, and the high-speed air flow containing water is blown toward the wiper and the glass plate through the nozzle 84. In this process, as shown in FIG. Figure 4 and Figure 5 As shown, the lever 89 provides the L-shaped rotating rod 833 with the power to press and flip, so that the baffle plate 837 rotates, and cooperates with the sealing ring 839 to block the exhaust port 12. At the same time, the lens 838 blocks the groove 835 and cooperates with the rubber ring to prevent moisture from corroding the camera 836. The camera 836 can also observe through the lens 838 to simulate the working efficiency and swing data of the wiper in a rainy environment.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A comprehensive test bench for windshield wipers of a train set, comprising a workbench (6), a control console (1) being fixedly arranged on the top of the workbench (6), characterized in that: A test box (3) is provided on one side of the control console (1), an exhaust port (12) is provided on the side of the test box (3), and a driving tool (9) for controlling the swing of the windshield wiper is provided inside the test box (3), and a testing mechanism (8) for detecting whether the windshield wiper is qualified is provided above the driving tool (9); The testing mechanism (8) comprises a transfer cylinder (87) fixedly arranged on the inner wall of the testing box (3); a side of the transfer cylinder (87) is connected to a water delivery pipe (86); an L-shaped air inlet pipe (85) is arranged on one side of the transfer cylinder (87); a shielding unit (83) for blocking an exhaust port (12) is arranged on a side of the transfer cylinder (87) away from the L-shaped air inlet pipe (85); and a top of the transfer cylinder (87) is connected to a water inlet pipe (81).

2. The EMU windshield wiper comprehensive test bench according to claim 1, characterized in that: The output end of the L-shaped air inlet pipe (85) is connected to a nozzle (84), and the nozzle (84) is arranged toward the windshield wiper. The output end of the water delivery pipe (86) is connected to the end of the L-shaped air inlet pipe (85) close to the nozzle (84).

3. The EMU windshield wiper comprehensive test bench according to claim 1, characterized in that: A cylinder (82) is fixedly mounted on the side wall of the test box (3); the protruding end of the cylinder (82) movably penetrates the test box (3) and is fixedly connected to a push-pull rod (88); one end of the push-pull rod (88) movably penetrates the transfer cylinder (87) and is fixedly mounted with a piston; the position of the piston corresponds to the position of the output end of the water inlet pipe (81), and the thickness of the piston is greater than the inner diameter of the water inlet pipe (81).

4. The EMU windshield wiper comprehensive test bench according to claim 1, characterized in that: The shielding unit (83) includes a spring hinge (834) fixedly connected to the inner wall of the test box (3), one end of the spring hinge (834) is fixedly connected to a shielding plate (837), a sealing ring (839) is fixedly provided at the bottom of the shielding plate (837), the position of the sealing ring (839) corresponds to the position of the exhaust port (12), and a lens (838) is fixedly installed on the back of the shielding plate (837).

5. The EMU windshield wiper comprehensive test bench according to claim 4, characterized in that: A groove (835) is provided on the inner wall of the test box (3) on one side of the exhaust port (12), a camera (836) is fixedly installed in the groove (835), the camera (836) is arranged toward the windshield wiper, and the output end of the camera (836) is electrically connected to the input end of the control console (1), a rubber ring is provided at the opening of the groove (835), and the position of the groove (835) corresponds to the position of the lens (838).

6. The EMU windshield wiper comprehensive test bench according to claim 3, characterized in that: An L-shaped rotating rod (833) is rotatably provided at the top of the inner wall of the test box (3); a roller (832) is rotatably provided at one end of the L-shaped rotating rod (833); the roller (832) is rollingly connected to the top of the shielding plate (837); a shifting rod (89) is fixedly provided at the middle of the push-pull rod (88); and the shifting rod (89) is slidably connected to the middle of the L-shaped rotating rod (833).

7. The EMU windshield wiper comprehensive test bench according to claim 4, characterized in that: A water storage tank (2) is fixedly mounted on the top of the test box (3), the bottom of the water storage tank (2) is connected to the input end of the water inlet pipe (81), and a blower (11) is fixedly arranged on the top of the test box (3) on one side of the water storage tank (2), the output end of the blower (11) is connected to the input end of the L-shaped air inlet pipe (85).

8. The EMU windshield wiper comprehensive test bench according to claim 1, characterized in that: A recovery pipe (10) is connected to the outer wall of the test box (3) below the exhaust port (12), a recovery barrel (4) is fixedly mounted on the side of the workbench (6), and the output end of the recovery pipe (10) is located in the inner cavity of the recovery barrel (4).

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