Vehicle body strength detection device

Abstract

The utility model discloses a vehicle body strength detection device, which relates to the technical field of vehicle body material detection and comprises a bottom plate, hydraulic rods fixedly mounted on two sides of the top of the bottom plate, tension sensors fixedly mounted at output ends of the hydraulic rods, and clamps fixedly mounted on one sides of the tension sensors. The bottom of the clamp is movably connected with the top of the bottom plate through a limiting rail, and a protection box is fixedly installed on the top of the bottom plate. The air compressor is started, compressed air flows to the nozzle through the one-way valve pipe, the thread lifter operates to lift sand at the bottom of the filter box to the nozzle connecting pipeline, the compressed air forms negative pressure in the nozzle and is involved in the sand to be mixed according to the Venturi effect, and mixed sand flow is sprayed from the nozzle to the surface of the vehicle body material subjected to the tensile test at a high speed. Outdoor wind-sand erosion is simulated, and deviation between indoor pure stretching detection data and actual service conditions due to the fact that wind-sand influence is not considered is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vehicle body material detection technical field, concretely is a vehicle body strength detection device. BACKGROUND

[0002] In the modern transportation field, with the wide application of high-speed motor train unit, long-distance freight train and various special vehicles, more stringent requirements are put forward for the strength of the vehicle body. The long-distance freight train needs to maintain the integrity of the vehicle body structure during long-time and long-distance transportation to ensure the safety of goods. Simulating various working conditions that the vehicle body may encounter in actual operation has great practical significance for improving vehicle performance and ensuring passenger and cargo safety. Therefore, the strength of the vehicle body needs to be detected.

[0003] When using the vehicle body, the vehicle body is exposed to the outdoor environment for a long time, and wind and sand erosion is a common environmental factor. If this factor is not considered during detection, once it is put into actual use, the wind and sand will continuously impact the surface of the vehicle body material, causing the data obtained by indoor simple tensile detection to deviate from the real performance data of the material after being affected by wind and sand in the actual outdoor environment, and unable to accurately reflect the strength performance of the material under actual service conditions. Therefore, it is urgent to develop a vehicle body strength detection device to solve these practical problems. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a vehicle body strength detection device to solve the above problems.

[0005] To achieve the above purposes, the utility model provides a vehicle body strength detection device, which comprises a bottom plate, hydraulic rods are fixedly installed on the top of both sides of the bottom plate, a tension sensor is fixedly installed at the output end of the hydraulic rod, a clamp is fixedly installed on one side of the tension sensor, and the clamp is movably connected to the top of the bottom plate through a limiting rail, a protective box is fixedly installed on the top of the bottom plate;

[0006] It also comprises a wind and sand simulation mechanism, the wind and sand simulation mechanism comprises a threaded elevator arranged at the center of the back of the bottom plate, a tee pipe is fixedly installed at the top of the front of the threaded elevator, a through spray head is fixedly installed at the bottom of the tee pipe, the spray head is located on the inner wall of the protective box on both sides, a through one-way valve pipe is fixedly installed on one side of the back of the spray head, a through air compressor is fixedly installed at one end of the one-way valve pipe to provide power source for the spray head, and a through filter box is fixedly installed on the front of the bottom of the threaded elevator.

[0007] Preferably, it also comprises a quick release mechanism, the quick release mechanism comprises a shell arranged on the outer side of the protective box, a contact spring is fixedly installed in the shell, a supporting rod is fixedly installed at one end of the contact spring, and an explosion-proof glass plate is clamped and installed on the top of the protective box through the supporting rod.

[0008] Preferably, a lower hopper is fixedly installed in the center of the bottom plate, and the lower hopper is in through connection with the top of the filter box.

[0009] Preferably, a hinge is fixedly installed on one side of the front of the protection box, and a box door is movably installed on one side of the hinge.

[0010] Preferably, a mounting seat is fixedly installed in the center of the inner wall of the protection box, and a camera is fixedly installed on one side of the mounting seat.

[0011] Preferably, a support frame is fixedly installed at the bottom of the bottom plate, a horizontal plate is fixedly installed on the inner side of the support frame, and the top of the horizontal plate is fixedly connected with the bottom of the filter box.

[0012] The utility model provides a vehicle body strength detection device, has the following beneficial effects compared with prior art

[0013] 1, when the sand simulation mechanism works, the air compressor starts, and compressed air flows to the spray head through the check valve pipe, and the threaded elevator runs to lift the sand at the bottom of the filter box to the pipe connected with the spray head, and the compressed air forms a negative pressure in the spray head, and the sand is mixed according to the venturi effect, and the mixed sand flow is sprayed at high speed from the spray head to the surface of the vehicle body material of the stretching test, simulating outdoor sand erosion, avoiding the deviation of indoor pure stretching detection data due to not considering the influence of sand, and ensuring that the data meets the vehicle body material service specification.

[0014] 2, press the explosion -proof glass plate to contact the support rod and apply the resistance force, the support rod is compressed after being resisted by the resistance force spring, and the support rod is retracted into the shell, when the explosion -proof glass plate reaches the specified installation position, the resistance spring begins to restore the original state due to its own high deformation force, drives the support rod to extend outward, and the support rod extends into the explosion -proof glass plate and is resisted and fixed, when the explosion -proof glass plate needs to be disassembled, the pull rod connected with the resistance spring is pulled, so that the resistance spring is compressed, and then the support rod is retracted, the explosion -proof glass plate installation position is released, the function of conveniently replacing the explosion -proof glass plate is realized, the explosion -proof glass plate is scratched after long -term use of the device, thereby avoiding the problem that the use personnel observes the material detection clarity. ACCURACY

[0015] Figure 1 It is the internal schematic view of the utility model;

[0016] Figure 2 It is the overall structure schematic view of the utility model;

[0017] Figure 3 It is the sand simulation mechanism installation position schematic view of the utility model;

[0018] Figure 4The utility model discloses a wind sand simulation mechanism side surface partial structure schematic view.

[0019] Figure 5 The utility model discloses a wind sand simulation mechanism front surface partial structure schematic view.

[0020] Figure 6 The utility model discloses a quick release mechanism installation position schematic view.

[0021] Figure 7 The utility model discloses a quick release mechanism top view partial structure schematic view.

[0022] Figure 8 The utility model discloses a quick release mechanism partial enlarged view.

[0023] In the drawing: 1, bottom plate, 101, lower hopper, 2, hydraulic rod, 201, tension sensor, 202, clamp, 3, protection box, 301, box door, 4, wind sand simulation mechanism, 401, threaded elevator, 402, spray head, 403, check valve pipe, 404, air compressor, 405, filter box, 5, camera, 6, quick release mechanism, 601, shell, 602, abutment spring, 603, support rod, 604, explosion -proof glass board, 7, support frame. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative work fall within the protection scope of the utility model.

[0025] The first implementation manner is as follows:

[0026] Reference Figures 1-6 A vehicle body strength detection device, including bottom plate 1, bottom plate 1 top two sides fixed installation has hydraulic rod 2, and hydraulic rod 2 output fixed installation has tension sensor 201, and tension sensor 201 one side fixed installation has clamp 202, and clamp 202 bottom is through the limit rail and the top movable connection of bottom plate 1, and bottom plate 1 top fixed installation has protection box 3.

[0027] The sand simulation mechanism 4 comprises a threaded elevator 401 arranged at the center of the back of the bottom plate 1, a tee pipe fixedly installed at the top of the front of the threaded elevator 401, a through spray head 402 fixedly installed at the bottom of the tee pipe, the spray head 402 being located at the two sides of the inner wall of the protective box 3, a through one-way valve pipe 403 fixedly installed at the back of one side of the spray head 402, a through air compressor 404 fixedly installed at one end of the one-way valve pipe 403, for providing power source for the spray head 402, and a through filter box 405 fixedly installed at the front of the bottom of the threaded elevator 401;

[0028] A discharging hopper 101 is fixedly installed at the center of the inside of the bottom plate 1, and the bottom of the discharging hopper 101 is in through connection with the top of the filter box 405, a hinge is fixedly installed at one side of the front of the protective box 3, and a box door 301 is movably installed at one side of the hinge, an installation seat is fixedly installed at the center of the inner wall of the protective box 3, and a camera 5 is fixedly installed at one side of the installation seat, a support frame 7 is fixedly installed at the bottom of the bottom plate 1, a horizontal plate is fixedly installed at the inner side of the support frame 7, and the top of the horizontal plate is fixedly connected with the bottom of the filter box 405.

[0029] The box door 301 is opened by the operator, so that the vehicle body material to be detected can be installed into the clamp 202, the clamp 202 is adjusted by the operator, so that the vehicle body material to be detected is clamped and fixed, the clamp 202 is driven to move horizontally by the operation of the hydraulic rod 2, the clamp 202 moving horizontally can stretch the vehicle body material, and the tensile value of the vehicle body material is recorded by the tension sensor 201;

[0030] When the sand simulation mechanism 4 starts to work, the air compressor 404 is started, the compressed air generated by the air compressor 404 flows to the spray head 402 along the one-way valve pipe 403, the one-way valve pipe 403 ensures one-way flow of the air flow, preventing backflow from affecting the operation of the equipment, and the threaded elevator 401 operates, which lifts the sand stored at the bottom of the filter box 405 upwards, and in the lifting process, the sand is gradually delivered to the pipeline connected with the spray head 402;

[0031] When the sand reaches the spray head 402, the high-speed flowing compressed air forms a negative pressure area in the spray head 402, and based on the Venturi effect, the negative pressure sucks the delivered sand into the air flow, so that the sand and the compressed air are fully mixed, then the mixed sand-air flow is sprayed at high speed from the spray head 402 and directly acts on the surface of the vehicle body material being tested, thereby simulating the erosion of the outdoor sand environment on the vehicle body material, avoiding the deviation of the data caused by the difference between the indoor simulation tensile test data and the actual outdoor sand influence on the vehicle body material during the detection of the tensile strength of the vehicle body material, thereby avoiding the problem that the data of the vehicle body material does not meet the service specifications;

[0032] The used wind-sand flow is guided to the filter box 405, and the sand and air are separated by a filter plate on the front of the filter box 405, the separated sand is left at the bottom of the filter box 405, and is lifted again by the threaded lifter 401 and transported back to the spray head 402 to participate in the next round of wind-sand simulation cycle, while the purified air is discharged from the filter box 405;

[0033] The sand particles generated by the wind-sand on the top of the bottom plate 1 can be collected through the lower hopper 101 and transported to the inside of the filter box 405 for storage, and the camera 5 can be powered on to record the strength detection of the vehicle body in real time, so that the subsequent user can understand, and the support frame 7 can ensure the stability of the installation position of the bottom plate 1 and the filter box 405.

[0034] The second embodiment is as follows:

[0035] The observation window is easily scratched in a long-term wind-sand simulation environment, which seriously affects the observation clarity of the user during the material tensile test of the vehicle body, and makes it difficult to accurately judge the test condition;

[0036] Reference Figures 1-2 、 Figures 7-8 In the second embodiment of the utility model, the quick release mechanism 6 is further included, the quick release mechanism 6 includes the shell 601 arranged outside the protective box 3, the contact spring 602 is fixedly installed inside the shell 601, the support rod 603 is fixedly installed at one end of the contact spring 602, and the explosion-proof glass plate 604 is connected and installed on the top of the protective box 3 through the support rod 603;

[0037] When the explosion-proof glass plate 604 is installed, the explosion-proof glass plate 604 is pressed towards the installation position on the top of the protective box 3, in this process, the explosion-proof glass plate 604 contacts the support rod 603 and exerts a contact force on it, after the support rod 603 is subjected to the contact force, the contact spring 602 is compressed, and the support rod 603 is retracted into the shell 601, when the explosion-proof glass plate 604 reaches the specified installation position, the contact spring 602 starts to restore its original shape due to its high deformation force, and drives the support rod 603 to extend outward, and the support rod 603 extends into the explosion-proof glass plate 604 and fixes the installation position of the explosion-proof glass plate 604, so that the installation of the explosion-proof glass plate 604 is completed, and the explosion-proof glass plate 604 is stably installed on the protective box 3;

[0038] When the explosion-proof glass plate 604 needs to be disassembled, the pull rod connected with the abutting spring 602 is pulled, so that the abutting spring 602 is compressed, and then the supporting rod 603 is retracted, so that the supporting rod 603 is away from the inside of the explosion-proof glass plate 604, at this time, the explosion-proof glass plate 604 loses the abutting fixing force of the supporting rod 603, and can be easily taken off from the mounting position on the top of the protection box 3, the disassembly operation is completed, the function of conveniently replacing the explosion-proof glass plate 604 is realized, and the problem that the explosion-proof glass plate 604 is easily scratched after the device is used for a long time, thereby affecting the observation of the user is avoided.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A vehicle body strength testing device, comprising a base plate (1), wherein hydraulic rods (2) are fixedly installed on both sides of the top of the base plate (1), a tension sensor (201) is fixedly installed at the output end of the hydraulic rods (2), a clamp (202) is fixedly installed on one side of the tension sensor (201), and a protective box (3) is fixedly installed on the top of the base plate (1), characterized in that: It also includes a sandstorm simulation mechanism (4), which includes a threaded lifter (401) located at the center of the back of the base plate (1). A three-way pipe is fixedly installed on the top of the front of the threaded lifter (401), and a through nozzle (402) is fixedly installed at the bottom of the three-way pipe. The nozzle (402) is located on both sides of the inner wall of the protective box (3). A through one-way valve pipe (403) is fixedly installed on one side of the back of the nozzle (402). A through air compressor (404) is fixedly installed at one end of the one-way valve pipe (403) to provide power to the nozzle (402). A through filter box (405) is fixedly installed on the front of the bottom of the threaded lifter (401).

2. The vehicle body strength testing device according to claim 1, characterized in that: It also includes a quick-release mechanism (6), which includes a housing (601) disposed on the outside of the protective box (3). An anti-collision spring (602) is fixedly installed inside the housing (601). A support rod (603) is fixedly installed at one end of the anti-collision spring (602). An explosion-proof glass plate (604) is snapped onto the top of the protective box (3) through the support rod (603).

3. The vehicle body strength testing device according to claim 1, characterized in that: A feeding hopper (101) is fixedly installed in the center of the bottom plate (1), and the bottom of the feeding hopper (101) is connected to the top of the filter box (405).

4. The vehicle body strength testing device according to claim 1, characterized in that: The protective box (3) has a hinge fixedly installed on one side of its front, and a door (301) is movably installed on one side of the hinge.

5. The vehicle body strength testing device according to claim 4, characterized in that: A mounting base is fixedly installed at the center of the inner wall of the protective box (3), and a camera (5) is fixedly installed on one side of the mounting base.

6. The vehicle body strength testing device according to claim 1, characterized in that: A support frame (7) is fixedly installed at the bottom of the base plate (1), and a horizontal plate is fixedly installed on the inner side of the support frame (7), with the top of the horizontal plate fixedly connected to the bottom of the filter box (405).

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