A high-speed operation simulation test device

Abstract

The invention discloses a high-speed operation simulation test device, comprising a support stand horizontally arranged on the ground, a firing device arranged at one end of the support stand; a recovery device arranged at the other end of the support stand, a channel connected between the firing device and the recovery device; a trolley placement bin arranged at one end of the channel close to the firing device, the trolley placement bin is used to place a card-carrying simulation trolley for a simulation experiment into the device; a wireless receiving device for receiving a signal of the card-carrying simulation trolley arranged on the channel, the wireless receiving device is connected to the support stand; a guide groove for increasing the matching degree with the card-carrying simulation trolley is arranged on the inner wall of the channel, and the air inlet of the trolley placement bin is connected to the air outlet of the firing device. The invention has the advantages of strong versatility, wide range of firing speed and adjustable speed.

Description

Technical Field

[0001] The invention relates to the technical field of mechatronics, and more specifically to a high-speed operation simulation test device. Background Art

[0002] Pass cards will be issued and collected at the entrance and exit of each highway. The pass cards can accurately identify the information of vehicles entering and exiting the toll station, and accurately record the actual driving path of the vehicle, providing an important basis for vehicle pass billing and settlement.

[0003] At present, as non-stop toll collection becomes a trend, higher requirements are placed on the reliability and sensitivity of the pass identification card and wireless receiving device used for toll collection. Therefore, a reasonable and effective device is needed to simulate the high-speed operation of the test vehicle, and then test the sensitivity and stability of the pass card. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a high-speed operation simulation test device to solve the problems in the background technology.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows.

[0006] A high-speed operation simulation test device comprises a support frame horizontally arranged on the ground, a firing device for providing power is arranged at one end of the support frame; a recovery device for recovering a trolley is arranged at the other end of the support frame, and a channel is connected between the firing device and the recovery device; a trolley placement bin is arranged at one end of the channel close to the firing device, and the trolley placement bin is used to place a card-carrying simulation trolley for a simulation experiment into the device; a wireless receiving device for receiving a signal from the card-carrying simulation trolley is arranged on the channel, and the wireless receiving device is connected to the support frame through a connecting frame; a guide groove for increasing the matching degree with the card-carrying simulation trolley is arranged on the inner wall of the channel, and the air inlet of the trolley placement bin is connected to the air outlet of the firing device.

[0007] To further optimize the technical solution, the channel includes, in sequence, an acceleration channel provided with a trolley placement compartment, an open free-running channel, and a braking channel connected to a recovery device.

[0008] To further optimize the technical solution, the acceleration channel includes a hatch clamping mechanism arranged on the trolley placement compartment and a plurality of sections of rectangular aluminum alloy tracks that are closed on all sides; the rectangular aluminum alloy tracks that are closed on all sides are connected by connecting flanges and bolts.

[0009] To further optimize the technical solution, the free-running channel includes a plurality of sections of rectangular aluminum alloy tracks which are open on all sides, and each section of the track is connected by bolts and connecting flanges.

[0010] To further optimize the technical solution, the brake channel includes a plurality of sections of rectangular aluminum alloy tracks which are closed on all sides, and the rectangular aluminum alloy tracks which are closed on all sides are connected by connecting flanges and bolts.

[0011] To further optimize the technical solution, the recovery device includes a trolley recovery cabin, a cabin door clamping device, and a large-diameter exhaust valve.

[0012] To further optimize the technical solution, the card-carrying simulation cart includes floating rolling wheels, a pass card placement area, and front and rear side baffle areas.

[0013] To further optimize the technical solution, the firing device includes a high-pressure air chamber, a main cavity, and a low-pressure control air chamber which are connected by flanges and arranged coaxially in sequence; the side of the main cavity is connected with an acceleration channel arranged perpendicular to the axial direction, and a trolley placement bin for placing a card-carrying simulation trolley is arranged at one end of the acceleration channel close to the main cavity; the inner diameter of the upper chamber of the main cavity is equal to the inner diameter of the high-pressure air chamber, and the inner diameter of the lower chamber is greater than the upper inner diameter; a first high-pressure air injection port for injecting air into the high-pressure air chamber is arranged at the upper part of the main cavity; a second high-pressure air injection port for injecting air into the high-pressure control air chamber is arranged at the upper part of the low-pressure control air chamber, and an exhaust port is arranged in the middle; a low-pressure air injection port is arranged at the lower part of the low-pressure control air chamber, and a valve is arranged in the middle of the bottom end surface of the low-pressure control air chamber; a piston column for controlling whether the acceleration channel is connected to the high-pressure air chamber is arranged in the lower chamber of the main cavity; a low-pressure control piston for controlling whether the high-pressure control chamber is connected to the exhaust port is arranged in the low-pressure control air chamber.

[0014] To further optimize the technical solution, the air duct of the low-pressure control air chamber is divided into three sections: upper, middle and lower. The diameter of the upper section is larger than that of the middle section and smaller than that of the lower section, and the diameter of the lower section is larger than that of the high-pressure air chamber and smaller than that of the low-pressure control air chamber; the second high-pressure air injection port is arranged in the upper section, the exhaust port is arranged in the middle section, and the low-pressure air injection port is arranged in the lower section; the low-pressure control piston is located at the upper part of the middle section and the lower section, and does not block the low-pressure air injection port when blocking the exhaust port.

[0015] To further optimize the technical solution, a connecting pipe for quickly balancing the pressure is connected between the exhaust port and the lower section of the low-pressure control air chamber.

[0016] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0017] The present invention provides a high-speed operation simulation test device, which uses pneumatic ejection technology to eject a card-carrying simulation vehicle at a relatively high speed and run it in a channel, so as to achieve the required movement speed environment for the pass card test in a short time and a short stroke. The movement process adopts an open-loop control method, that is, a chart is compiled according to the speed and air pressure to adjust the initial air pressure of the firing device, so that the simulation vehicle reaches a set speed within a specified stroke, and effectively brakes and recovers the moving parts at the set position. The present invention simulates the sensitive response of the test pass card to different vehicle speeds, and then obtains the recognition performance of the pass card on the highway to the high-speed operation of the vehicle. The present invention has the advantages of strong versatility, a wide range of firing speeds, and adjustable speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 A top view of the present invention;

[0020] Figure 3 It is a partial structural schematic diagram of the present invention;

[0021] Figure 4 It is an overall schematic diagram of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the firing device in the present invention;

[0023] Figure 6 It is a three-dimensional diagram of the firing device in the present invention.

[0024] Among them: 1. firing device, 104. main cavity, 105. high-pressure air chamber, 106. low-pressure control air chamber, 107. piston column, 108. low-pressure control piston, 109. valve, 1010. high-pressure control air chamber, 1020. first high-pressure air injection port, 1021. second high-pressure air injection port, 1022. low-pressure air injection port, 1023. exhaust port, 2. acceleration channel, 3. free running channel, 4. braking channel, 5. card carrying simulation trolley, 6. trolley placement compartment, 8. connecting flange, 9. supporting stand, 10. hatch clamping mechanism, 11. guide groove, 12. recovery device, 13. exhaust valve, 14. trolley recovery compartment. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] A high-speed operation simulation test device, combined with Figures 1 to 6As shown, it includes a firing device 1, an acceleration channel 2, a free running channel 3, a braking channel 4, a card carrying simulation trolley 5, a trolley placement compartment 6, a connecting flange 8, a supporting stand 9, a hatch clamping mechanism 10, a guide groove 11, a recovery device 12, and an exhaust valve 13.

[0027] The support frame 9 is horizontally arranged on the ground, and a firing device 1 is arranged at one end of the support frame 9 for providing power.

[0028] The firing device 1 comprises a high-pressure air chamber 105, a main cavity 104, and a low-pressure control air chamber 106 which are connected by flanges and arranged coaxially in sequence, and sealing rings are arranged at the flange connections. The main cavity 104 is a metal forged main cavity 104, and the main cavity 104 has a rectangular shape. The high-pressure air chamber 105 is a closed container, and the high-pressure air chamber 105 is cylindrical.

[0029] The side of the main cavity 104 is connected to the acceleration channel 2 which is arranged perpendicular to the axial direction, and a car placement compartment 6 for placing the card-carrying simulation car 5 is arranged at one end of the acceleration channel 2 close to the main cavity 104. The inner diameter of the upper part of the chamber of the main cavity 104 is equal to the inner diameter of the high-pressure gas chamber 105, and the inner diameter of the lower part of the chamber is greater than the inner diameter of the upper part. The upper part of the main cavity 104 is provided with a first high-pressure gas injection port 1020 for injecting gas into the high-pressure gas chamber 105.

[0030] The upper part of the low pressure control air chamber 106 is provided with a second high pressure gas injection port 1021 for injecting gas into the high pressure control air chamber 1010, and the middle part is provided with an exhaust port 1023. The lower part of the low pressure control air chamber 106 is provided with a low pressure gas injection port 1022, and the middle part of the bottom end surface of the low pressure control air chamber 106 is provided with a valve 109.

[0031] A piston rod 107 is provided in the lower chamber of the main chamber 104 for controlling whether the acceleration channel 2 is connected to the high-pressure air chamber 105. Sealing rings are provided at both ends of the piston rod 107. A low-pressure control piston 108 is provided in the low-pressure control air chamber 106 for controlling whether the high-pressure control chamber is connected to the exhaust port 1023.

[0032] The air passage of the low-pressure control air chamber 106 is divided into three sections: upper, middle and lower. The diameter of the upper section is larger than that of the middle section and smaller than that of the lower section, and the diameter of the lower section is larger than that of the high-pressure air chamber 105 and smaller than that of the low-pressure control air chamber 106. The second high-pressure air injection port 1021 is arranged in the upper section, the exhaust port 1023 is arranged in the middle section, and the low-pressure air injection port 1022 is arranged in the lower section. The low-pressure control piston 108 is located at the upper part of the middle section and the lower section, and when the exhaust port 1023 is blocked, the low-pressure air injection port 1022 is not blocked.

[0033] A connecting pipe for quickly balancing the pressure is connected between the exhaust port 1023 and the lower section of the low-pressure control air chamber.

[0034] The other end of the support frame 9 is provided with a recovery device 12 for recovering the trolley. The recovery device 12 comprises a trolley recovery cabin 14, a cabin door clamping device, and an exhaust valve 13.

[0035] A channel is connected between the firing device 1 and the recovery device 12 for the trolley to move. A guide groove 11 is provided on the inner wall of the channel to increase the matching degree with the card-carrying simulation trolley 5. There are four guide grooves 11, and the guide grooves 11 are matched and contacted with the rolling wheels of the card-carrying simulation trolley 5. The guide grooves 11 restrict the flipping of the card-carrying simulation trolley 5, so that the card-carrying simulation trolley 5 can only move along the guide grooves 11.

[0036] A trolley placement compartment 6 is provided at one end of the passage close to the firing device 1. The trolley placement compartment 6 is used to place a card-carrying simulation trolley 5 for a simulation experiment in the device. The card-carrying simulation trolley 5 includes floating rolling wheels, a pass card placement area, and front and rear side baffle areas. The air inlet of the trolley placement compartment 6 is connected to the air outlet of the firing device 1.

[0037] The channels sequentially include an acceleration channel 2 provided with a trolley placement compartment 6, an open free-running channel 3, and a braking channel 4 connected to a recovery device 12. The acceleration channel 2, the free-running channel 3, and the braking channel 4 are connected by connecting flanges 8 and bolts.

[0038] A wireless receiving device is arranged above the free-running channel 3 for receiving the signal sent from the card-carrying simulation vehicle 5; the wireless receiving device is connected to the supporting stand 9 via a connecting frame.

[0039] The acceleration channel 2 includes a door clamping mechanism 10 and a rectangular aluminum alloy track with four sides closed, and the door clamping mechanism 10 is arranged on the trolley placement compartment 6. The rectangular aluminum alloy track with four sides closed is provided with multiple sections, and the rectangular aluminum alloy tracks with four sides closed are connected by connecting flanges 8 and bolts, and a seal is provided at the connecting flanges 8.

[0040] The free-running channel 3 includes multiple sections of rectangular aluminum alloy tracks that are open all around, and each section of the track is connected by bolts and connecting flanges 8. In order to accurately simulate the state of the trolley sliding freely after reaching the required speed, the rectangular aluminum alloy tracks that are not sealed all around avoid the metal shielding effect, ensuring that the signal sent by the card-carrying simulation trolley 5 is stably read by the wireless receiving device.

[0041] The brake channel 4 includes multiple sections of rectangular aluminum alloy tracks that are closed on all sides, and the rectangular aluminum alloy tracks that are closed on all sides are connected by connecting flanges 8 and bolts. The closed tracks are used to form a relatively closed air cavity to effectively decelerate the simulated car. The brake channel 4 is connected to the front end of the simulated car recovery cabin 14 through a connecting flange 8, and a sealing gasket is provided; the side end of the simulated car recovery cabin 14 is flange-connected to the exhaust valve 13, and the size of the resistance in the track is adjusted by changing the opening size of the exhaust valve 13; when the exhaust volume decreases, the air in the channel is compressed quickly, the resistance of the simulated car will increase, and the braking will be faster; when the exhaust volume increases, the air in the channel is compressed slowly, the resistance will decrease, and the braking will be slower.

[0042] When the present invention is actually used, the initial air pressure of the firing device 1 is adjusted according to the speed-air pressure chart, so that the card-carrying simulation trolley 5 reaches a set speed within a specified stroke, and the card-carrying simulation trolley 5 is effectively braked and recovered at a set position.

[0043] When adjusting the initial air pressure of the firing device 1, first open the trolley placement chamber 6, then place the card-carrying simulated trolley 5 into the trolley placement chamber 6, and then close the trolley placement chamber 6. Next, inject air into the low-pressure control air chamber 106 to a specified pressure through the low-pressure air injection port 1022, so that the low-pressure control piston 108 moves upward, thereby closing the high-pressure control air chamber 1010. Next, close the low-pressure air injection port 1022, open the second high-pressure air injection port 1021, and inject air into the high-pressure control air chamber 1010 to a specified pressure, so that the piston column 107 inside the high-pressure control air chamber 1010 moves upward to close the high-pressure air chamber 105. Open the first high-pressure air injection port 1020, and inject air into the high-pressure air chamber 105 to a specified pressure. At this time, the piston column 107 and the low-pressure control piston 108 are both in a force balance state, that is, the preparation work before the card-carrying simulated trolley 5 is completed.

[0044] When firing, the exhaust valve is first opened to quickly discharge the gas in the low-pressure control air chamber 106. Due to the pressure difference between the upper and lower parts, the low-pressure control piston 108 in the low-pressure control air chamber 106 moves downward quickly to open the high-pressure control air chamber 1010. Then, the high-pressure gas in the high-pressure control air chamber 1010 flows out quickly through the exhaust port 1023. Similarly, due to the pressure difference between the upper and lower parts of the piston rod 107, the piston rod 107 inside the high-pressure control air chamber 1010 moves downward quickly, thereby opening the high-pressure air chamber 105 and connecting the high-pressure air chamber 105 with the acceleration channel 2. The high-pressure gas in the high-pressure air chamber 105 quickly enters the acceleration channel 2, pushing the card-carrying simulation car 5 to move forward.

[0045] During the test, the compressed air generated by the firing device 1 is input into the trolley placement compartment 6. The card-carrying simulated trolley 5 obtains a certain amount of kinetic energy under the push of the compressed air and moves forward at high speed in the acceleration channel 2, thereby simulating the operation of a vehicle on the highway. The wireless receiving device receives the electronic identification of the pass card on the card-carrying simulated trolley 5, thereby realizing the detection of the recognition performance.

[0046] According to different air pressures, the card-carrying simulated car 5 with different speeds is emitted, so that the wireless receiving device can respond sensitively to different vehicle speeds, and then the recognition performance of the high-speed vehicle on the highway can be obtained.

[0047] The present invention can simulate the adjustable movement speed of a car within the range of 30m / s to 50m / s in an effective space within 40 meters. A pass card is placed on a simulated car, and the simulated car passes through a wireless receiving device at a maximum running speed of 50m / s (180km / h) in a simulated channel to test the signal receiving performance of the wireless receiving device. At the same time, the pass card used for the test can be recovered, thereby achieving the purpose of detecting the sensitivity of the pass card and its wireless receiving device.

[0048] The above examples do not impose any formal limitations on the shape, material, structure, etc. of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. A high-speed operation simulation test device, characterized in that: The invention comprises a support frame (9) arranged horizontally on the ground, wherein a firing device (1) for providing power is arranged at one end of the support frame (9); a recovery device (12) for recovering a trolley is arranged at the other end of the support frame (9), and a channel is connected between the firing device (1) and the recovery device (12); a trolley placement compartment (6) is arranged at one end of the channel close to the firing device (1), and the trolley placement compartment (6) is used to place a card-carrying simulation trolley (5) for carrying out a simulation experiment in the device; a wireless receiving device for receiving signals from the card-carrying simulation trolley (5) is arranged on the channel, and the wireless receiving device is connected to the support frame (9) via a connecting frame; a guide groove (11) for increasing the matching degree with the card-carrying simulation trolley (5) is arranged on the inner wall of the channel, and an air inlet of the trolley placement compartment (6) is connected to an air outlet of the firing device (1); The firing device (1) comprises a high-pressure air chamber (105), a main cavity (104), and a low-pressure control air chamber (106) which are connected in sequence through flanges and are coaxially arranged; the side of the main cavity (104) is connected to an acceleration channel (2) arranged perpendicular to the axial direction, and a trolley placement compartment (6) for placing a card-carrying simulation trolley (5) is arranged at one end of the acceleration channel (2) close to the main cavity (104); the inner diameter of the upper part of the main cavity (104) is equal to the inner diameter of the high-pressure air chamber (105), and the inner diameter of the lower part of the cavity is greater than the inner diameter of the upper part; the upper part of the main cavity (104) is provided with a first high-pressure gas injection port (1020) for injecting gas into the high-pressure air chamber (105); The upper part of the high-pressure control air chamber (106) is provided with a second high-pressure air injection port (1021) for injecting air into the high-pressure control air chamber (1010), and the middle part is provided with an exhaust port (1023); the lower part of the low-pressure control air chamber (106) is provided with a low-pressure air injection port (1022), and the middle part of the bottom end surface of the low-pressure control air chamber (106) is provided with a valve (109); the lower chamber of the main cavity (104) is provided with a piston column (107) for controlling whether the acceleration channel (2) and the high-pressure air chamber (105) are connected; and the low-pressure control air chamber (106) is provided with a low-pressure control piston (108) for controlling whether the high-pressure control chamber and the exhaust port (1023) are connected.

2. A high-speed operation simulation test device according to claim 1, characterized in that: The channel comprises, in sequence, an acceleration channel (2) provided with a trolley placement compartment (6), an open free-running channel (3), and a braking channel (4) connected to a recovery device (12).

3. A high-speed operation simulation test device according to claim 2, characterized in that: The acceleration channel (2) comprises a door clamping mechanism (10) arranged on the trolley placement compartment (6) and a plurality of sections of rectangular aluminum alloy tracks which are closed on all sides; the rectangular aluminum alloy tracks which are closed on all sides are connected via connecting flanges (8) and bolts.

4. A high-speed operation simulation test device according to claim 3, characterized in that: The free-running channel (3) comprises a plurality of sections of rectangular aluminum alloy rails which are open on all sides, and each section of the rails is connected via bolts and a connecting flange (8).

5. A high-speed operation simulation test device according to claim 4, characterized in that: The braking channel (4) comprises a plurality of sections of rectangular aluminum alloy tracks which are closed on all sides, and the rectangular aluminum alloy tracks which are closed on all sides are connected via connecting flanges (8) and bolts.

6. A high-speed operation simulation test device according to claim 1, characterized in that: The recovery device (12) comprises a trolley recovery cabin (14), a cabin door clamping device, and an exhaust valve (13).

7. A high-speed operation simulation test device according to claim 1, characterized in that: The card-carrying simulation trolley (5) comprises floating rolling wheels, a pass card placement area, and front and rear side baffle areas.

8. The high-speed operation simulation test device according to claim 1, characterized in that: The air passage of the low-pressure control air chamber (106) is divided into three sections: upper, middle and lower. The diameter of the upper section is larger than that of the middle section and smaller than that of the lower section, and the diameter of the lower section is larger than that of the high-pressure air chamber (105) and smaller than that of the low-pressure control air chamber (106). The second high-pressure air injection port (1021) is arranged in the upper section, the exhaust port (1023) is arranged in the middle section, and the low-pressure air injection port (1022) is arranged in the lower section. The low-pressure control piston (108) is located at the upper part of the middle section and the lower section, and does not block the low-pressure air injection port (1022) when blocking the exhaust port (1023).

9. A high-speed operation simulation test device according to claim 8, characterized in that: A connecting pipe for quickly balancing the pressure is connected between the exhaust port (1023) and the lower section of the low-pressure control air chamber.

Images