CN220039772U - Movable automobile side protection rigidity detection device - Google Patents

Movable automobile side protection rigidity detection device Download PDF

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Publication number
CN220039772U
CN220039772U CN202321653982.5U CN202321653982U CN220039772U CN 220039772 U CN220039772 U CN 220039772U CN 202321653982 U CN202321653982 U CN 202321653982U CN 220039772 U CN220039772 U CN 220039772U
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China
Prior art keywords
side protection
loading
movable
force loading
lifting support
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CN202321653982.5U
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Chinese (zh)
Inventor
李冰
蒋旭东
彭嫔嫔
朱义
殷建波
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Shanghai Fire Research Institute of MEM
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Shanghai Fire Research Institute of MEM
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Abstract

The utility model provides a movable automobile side protection rigidity detection device, which consists of a movable chassis, a side protection rigidity detection system and a control cabinet; the lateral protection rigidity detection system comprises a lifting support mechanism and a lateral force loading mechanism, wherein the lateral force loading mechanism is arranged on the lifting support mechanism and comprises a horizontal driving mechanism and a loading disc positioned at the front end of the horizontal driving mechanism, the loading disc is provided with a pressure sensor, and the horizontal driving mechanism is used for driving the loading disc to horizontally move and detecting static pressure acting on the lateral protection device through the pressure sensor; and the pressure sensor is arranged at the rear side of the movable chassis and used for controlling the lifting supporting mechanism, the lateral force loading mechanism and recording static pressure data of the pressure sensor. The utility model adopts the movable chassis, and carries the device for detecting the side protection rigidity of the automobile on the chassis, so that the test is not limited by the field, and the detection of the side protection rigidity of the automobile can be carried out at any time and any place.

Description

Movable automobile side protection rigidity detection device
Technical Field
The utility model relates to a side protection test of an automobile, in particular to a movable automobile side protection rigidity detection device.
Background
GB 11567-2017 requirements for protection of the side and rear lower part of a vehicle and trailer states that: the side protection device can be a continuous plane, or consists of one or more cross bars, or is a combination of the plane and the cross bars; when the cross bar structure is adopted, the cross section height is as follows: a) N (N) 2 The class vehicle is not smaller than 50mm; b) N (N) 3 The class vehicle is not smaller than 100mm. The side protection device should have a certain rigidity, and is firmly fixed without loosening due to vibration. When a static pressure of 1kN is applied to all parts of the outer surface of the device by using a circular flat pressing head, the deformation caused by stress can meet the standard requirement.
Currently, when testing, it is common practice to start the test vehicle to the loading device side in the test shop and then start the loading device to record the horizontal static pressure. However, the test mode is limited by the field of a test workshop, and the detection of the side protection rigidity of the automobile cannot be carried out anytime and anywhere.
Against the background of the above, it is desirable to provide a mobile vehicle side guard stiffness detection device.
Disclosure of Invention
The utility model provides a movable automobile side protection rigidity detection device which is suitable for rigidity detection of a fire truck side protection device, and consists of a movable chassis, a side protection rigidity detection system and a control cabinet, wherein the side protection rigidity detection system is mounted on the movable chassis;
the bottom of the mobile chassis is provided with travelling wheels;
the lateral protection rigidity detection system comprises a lifting support mechanism and a lateral force loading mechanism, wherein the lifting support mechanism is vertically and fixedly arranged on the front side of the movable chassis, the lateral force loading mechanism is arranged on the lifting support mechanism and comprises a horizontal driving mechanism and a loading disc positioned at the front end of the horizontal driving mechanism, the loading disc is provided with a pressure sensor, and the horizontal driving mechanism is used for driving the loading disc to horizontally move and detecting static pressure acting on the lateral protection device through the pressure sensor;
the control cabinet is arranged at the rear side of the movable chassis, is connected with the lifting supporting mechanism and the lateral force loading mechanism and is used for controlling lifting of the lifting supporting mechanism, horizontal force loading of the lateral force loading mechanism and recording static pressure data of the pressure sensor.
Further, a counterweight water tank is arranged on the movable chassis, the counterweight water tank is positioned at one end far away from the loading disc, a water inlet cover is arranged at the top of the counterweight water tank, and a water drain faucet is arranged at one side of the bottom of the counterweight water tank;
the rear side of the movable chassis is provided with a foot brake mechanism which is connected with the travelling wheels through a transmission mechanism.
Further, the control cabinet is provided with a control tiller for controlling the travelling wheels to move and turn; and/or
The control cabinet is internally provided with a near field communication system, the near field communication system is connected with the handheld controller in a wireless mode, and the walking wheel and lifting supporting mechanism are controlled to lift through the handheld controller, and the horizontal force of the lateral force loading mechanism is loaded.
Further, the lifting supporting mechanism drives the lateral force loading mechanism to lift up and down based on synchronous belt transmission;
the lifting support mechanism comprises two vertical support frames fixed on the front side of the movable chassis, synchronous pulleys are mounted at the upper end and the lower end of each vertical support frame, the upper synchronous pulley and the lower synchronous pulley are in transmission connection through synchronous belts, and two sides of the lateral force loading mechanism are fixedly connected with the two synchronous belts;
a first stepping motor positioned between the two vertical supporting frames is fixed on the movable chassis and is connected with synchronous pulleys at the bottoms of the two vertical supporting frames through a speed reducer.
Further, a displacement sensor for detecting the horizontal displacement of the loading disc is arranged between the loading disc and the lifting supporting mechanism, the displacement sensor is connected with the control cabinet, and the horizontal displacement detected by the displacement sensor is displayed in real time through a display panel of the control cabinet.
Further, the lateral force loading mechanism drives the loading disc to horizontally move back and forth based on the lead screw motor;
the lateral force loading mechanism comprises a cylinder barrel, a threaded nut and a screw rod are arranged in the cylinder barrel, the nut is connected with a second stepping motor at the rear end of the cylinder barrel, the front end of the screw rod is coaxially connected with a piston rod which is in sliding sealing fit with the inner wall of the cylinder barrel, and a loading disc is fixed at the front end of the piston rod.
Further, the front end of the cylinder barrel is provided with a sealing ring.
Further, the loading disc is a circular flat pressing head with the diameter of 220 mm+/-10 mm, and the pressure sensor is arranged on the back surface of the loading disc.
The utility model has the advantages that:
1) The mobile chassis is adopted, and the automobile side protection rigidity detection device is carried on the chassis, so that the automobile side protection rigidity detection can be carried out at any time and any place;
2) The lifting supporting mechanism can drive the lateral force loading mechanism to lift so as to adapt to loading positions with different heights;
3) The movable chassis is provided with the water tank and the pedal brake, so that the stability of the chassis in the testing process is greatly improved, and the testing accuracy is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a side view of a mobile device for detecting the rigidity of a side guard of an automobile according to the present utility model;
fig. 2 is a top view of the mobile vehicle side protection stiffness detection device of the present utility model.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.
In order to provide a thorough understanding of the present utility model, detailed steps and detailed structures will be presented in the following description in order to explain the technical solution of the present utility model. Preferred embodiments of the present utility model are described in detail below, however, the present utility model may have other embodiments in addition to these detailed descriptions.
Referring to fig. 1-2, the utility model provides a movable device for detecting the side protection rigidity of an automobile, which is integrally a trolley capable of being pulled by manpower, and can move at any time to conveniently detect the side protection rigidity of the automobile. The device mainly comprises a mobile chassis 100, a side protection rigidity detection system 200 and a control cabinet 300, wherein the side protection rigidity detection system 200 and the control cabinet 300 are carried on the mobile chassis 100.
Mobile chassis 100
The travelling wheels 101 are arranged at the bottom of the mobile chassis 100, the two travelling wheels at the front side are travelling wheels with steering, and the push rod 106 is arranged at the rear side of the mobile chassis 100, so that the mobile chassis is convenient to push by manpower. The rear side of the mobile chassis 100 is provided with a foot brake mechanism 105 which is connected with the travelling wheels 101 through a transmission mechanism. In stiffness testing, depressing the foot brake mechanism 105 ensures that the cart does not move.
If necessary, a counterweight water tank 102 may be mounted on the mobile chassis 100, the counterweight water tank 102 being located at an end remote from the loading plate 221 to increase friction with the ground, preventing the cart from moving backward during loading test. A water inlet cover 103 is arranged at the top of the counterweight water tank 102, and a water outlet tap 104 is arranged at one side of the bottom, so that water can be conveniently added and discharged.
Side protection stiffness detection system 200
The side protection stiffness detection system 200 includes a lifting support mechanism 210 and a side force loading mechanism 220.
The lifting support mechanism 210 drives the lateral force loading mechanism 220 to lift up and down based on synchronous belt transmission, the lifting support mechanism 210 comprises two vertical support frames 211 fixed on the front side of the mobile chassis 100, synchronous belt wheels 212 are mounted at the upper end and the lower end of each vertical support frame 211, the upper synchronous belt wheel 212 and the lower synchronous belt wheel 212 are in transmission connection through synchronous belts 213, and two sides of the lateral force loading mechanism 220 are fixedly connected with the two synchronous belts 213. A first stepping motor is fixed on the mobile chassis 100 between the two vertical supporting frames 211, and the first stepping motor is connected with a synchronous pulley 212 at the bottom of the two vertical supporting frames 211 through a speed reducer. Under the action of the first stepper motor, the synchronous belts 213 at two sides drive in the up-down direction, so as to adjust the lateral force loading mechanism 220 to adapt to loading positions with different heights.
The lateral force loading mechanism 220 comprises a horizontal driving mechanism and a loading disc 221 positioned at the front end of the horizontal driving mechanism, wherein the loading disc 221 is provided with a pressure sensor 222, and the horizontal driving mechanism is used for driving the loading disc 221 to horizontally move and detecting static pressure acting on the lateral protection device through the pressure sensor 222. The lateral force loading mechanism 220 drives the loading plate 221 to horizontally move back and forth based on a screw motor. The lateral force loading mechanism 220 comprises a cylinder 223, a nut and a screw rod 226 which are in threaded fit are arranged in the cylinder 223, the nut is connected with a second stepping motor 224 at the rear end of the cylinder 223, the front end of the screw rod 226 is coaxially connected with a piston rod 225 which is in sliding sealing fit with the inner wall of the cylinder 223, and a loading disc 221 is fixed at the front end of the piston rod 225. Under the action of the second stepping motor 224, the piston rod 225 performs telescopic movement, so that the loading disc 221 at the front end of the piston rod 225 applies pressure to the side of the automobile and detects static pressure. To ensure sealing, a sealing ring is provided at the front end of the cylinder 223.
In an alternative embodiment, the loading plate 221 is a circular flat head with a diameter of 220mm + -10 mm, and the pressure sensor 222 is mounted on the back of the loading plate 221.
In an alternative embodiment, a displacement sensor 230 for detecting the horizontal displacement of the loading tray 221 is installed between the loading tray 221 and the lifting support mechanism, the displacement sensor 230 is connected to the control cabinet 300, and the horizontal displacement detected by the displacement sensor 230 is displayed in real time through the display panel of the control cabinet 300.
Control cabinet 300
The control cabinet 300 is mounted on the rear side of the mobile chassis 100, and the control cabinet 300 is connected to the lifting support mechanism 210 and the lateral force loading mechanism 220, and is used for controlling the lifting of the lifting support mechanism 210, horizontal force loading of the lateral force loading mechanism 220, and recording and displaying static pressure data of the pressure sensor 222.
The control cabinet 300 is configured with a steering tiller 301 for controlling the movement and steering of the road wheels 101. The tiller 301 is a control lever for controlling the trolley to travel, the tiller 301 is pulled to realize the forward and backward movement of the trolley, and the steering wheel is linked through the tiller to control the direction.
In addition, the control cabinet 300 further has a near field communication system, and the near field communication system is connected to the handheld controller in a wireless manner. The horizontal force loading of the lifting and lateral force loading mechanism 220 of the walking wheel 101 and the lifting supporting mechanism 210 is controlled by a handheld controller, and the control mode is more flexible. Meanwhile, the hand-held controller can further integrate and control the lifting support mechanism 210 and the lateral force loading mechanism 220, and simultaneously display data of the pressure sensor 222 and the displacement sensor 230.
The control cabinet is provided with control keys for respectively controlling the lifting supporting mechanism 210 and the lateral force loading mechanism 220, and two display screens are respectively used for displaying detection data of the pressure sensor 222 and the displacement sensor 230.
The preferred embodiments of the present utility model have been described above. It is to be understood that the utility model is not limited to the specific embodiments described above, wherein devices and structures not described in detail are to be understood as being implemented in a manner common in the art; any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model or modifications to equivalent embodiments without departing from the scope of the technical solution of the present utility model, using the methods and technical contents disclosed above, without affecting the essential content of the present utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims (8)

1. The movable automobile side protection rigidity detection device is suitable for rigidity detection of a fire truck side protection device and is characterized by comprising a movable chassis (100), a side protection rigidity detection system (200) carried on the movable chassis (100) and a control cabinet (300);
a travelling wheel (101) is arranged at the bottom of the mobile chassis (100);
the side protection rigidity detection system (200) comprises a lifting support mechanism (210) and a side force loading mechanism (220), wherein the lifting support mechanism (210) is vertically and fixedly arranged on the front side of the mobile chassis (100), the side force loading mechanism (220) is arranged on the lifting support mechanism (210), the side force loading mechanism (220) comprises a horizontal driving mechanism and a loading disc (221) positioned at the front end of the horizontal driving mechanism, the loading disc (221) is provided with a pressure sensor (222), and the horizontal driving mechanism is used for driving the loading disc (221) to horizontally move and detecting static pressure acting on the side protection device through the pressure sensor (222);
the control cabinet (300) is arranged at the rear side of the mobile chassis (100), and the control cabinet (300) is connected with the lifting support mechanism (210) and the lateral force loading mechanism (220) and is used for controlling lifting of the lifting support mechanism (210), horizontal force loading of the lateral force loading mechanism (220) and recording/displaying static pressure data of the pressure sensor (222).
2. The movable automobile side protection rigidity detection device according to claim 1, wherein a counterweight water tank (102) is installed on the movable chassis (100), the counterweight water tank (102) is positioned at one end far away from the loading disc (221), a water inlet cover (103) is arranged at the top of the counterweight water tank (102), and a water outlet faucet (104) is arranged at one side of the bottom;
the rear side of the movable chassis (100) is provided with a foot brake mechanism which is connected with the travelling wheels (101) through a transmission mechanism.
3. The mobile car side protection stiffness detection device according to claim 1, characterized in that the control cabinet (300) is configured with a steering tiller (301) for controlling the movement and steering of the road wheels (101); and/or
The control cabinet (300) is internally provided with a near field communication system, the near field communication system is connected with a handheld controller in a wireless mode, and the lifting of the travelling wheel (101) and the lifting support mechanism (210) and the horizontal force loading of the lateral force loading mechanism (220) are controlled through the handheld controller.
4. The movable automobile side protection rigidity detection device according to claim 1, wherein the lifting support mechanism (210) drives the side force loading mechanism (220) to lift up and down based on synchronous belt transmission;
the lifting support mechanism (210) comprises two vertical support frames (211) fixed on the front side of the mobile chassis (100), synchronous pulleys (212) are mounted at the upper end and the lower end of each vertical support frame (211), the upper synchronous pulley and the lower synchronous pulley (212) are in transmission connection through synchronous belts (213), and two sides of the lateral force loading mechanism (220) are fixedly connected with the two synchronous belts (213);
a first stepping motor positioned between the two vertical supporting frames (211) is fixed on the movable chassis (100), and the first stepping motor is connected with a synchronous pulley (212) at the bottom of the two vertical supporting frames (211) through a speed reducer.
5. The movable automobile side protection stiffness detection device according to claim 1, wherein the lateral force loading mechanism (220) drives the loading disc (221) to horizontally move back and forth based on a screw motor;
the lateral force loading mechanism (220) comprises a cylinder barrel (223), a threaded nut and a screw rod (226) are arranged in the cylinder barrel (223), the nut is connected with a second stepping motor (224) at the rear end of the cylinder barrel (223), the front end of the screw rod (226) is coaxially connected with a piston rod (225) which is in sliding sealing fit with the inner wall of the cylinder barrel (223), and a loading disc (221) is fixed at the front end of the piston rod (225).
6. The movable car side protection rigidity detecting device according to claim 5, wherein a sealing ring is provided at the front end of the cylinder (223).
7. The movable car side protection rigidity detecting device according to claim 1, characterized in that the loading plate (221) is a circular flat pressing head with a diameter of 220mm±10mm, and the pressure sensor (222) is mounted on the back of the loading plate (221).
8. The movable automobile side protection rigidity detection device according to claim 1, wherein a displacement sensor (230) for detecting the horizontal displacement of the loading disc (221) is arranged between the loading disc (221) and the lifting support mechanism, the displacement sensor (230) is connected with the control cabinet (300), and the horizontal displacement detected by the displacement sensor (230) is displayed in real time through a display panel of the control cabinet (300).
CN202321653982.5U 2023-06-27 2023-06-27 Movable automobile side protection rigidity detection device Active CN220039772U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321653982.5U CN220039772U (en) 2023-06-27 2023-06-27 Movable automobile side protection rigidity detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321653982.5U CN220039772U (en) 2023-06-27 2023-06-27 Movable automobile side protection rigidity detection device

Publications (1)

Publication Number Publication Date
CN220039772U true CN220039772U (en) 2023-11-17

Family

ID=88737109

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321653982.5U Active CN220039772U (en) 2023-06-27 2023-06-27 Movable automobile side protection rigidity detection device

Country Status (1)

Country Link
CN (1) CN220039772U (en)

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