CN110745060A - A kind of I-type protection device and method based on screw - Google Patents

Abstract

The invention provides an I-shaped protection device and method based on a lead screw, wherein the device comprises: a translational power component and a support translational component; the translational power component includes: a cross-shaped moving body and a lead screw; the movable body is moved through the matching of the movable body and the lead screw, so that the balance of the vehicle is guaranteed; the support translation member includes: a base; the base is an I-shaped base, so that the vehicle is not easy to turn on one side.

Description

A kind of I-type protection device and method based on screw

technical field

The present invention relates to the technical field of rollover protection devices, and in particular, to a protection device and a method.

Background technique

In my country, in recent years, with the development of the economy, the society's demand for energy and raw materials is increasing day by day. As an important transportation vehicle, tank trucks play an irreplaceable role in transportation. During the driving process of the tank truck, with the change of speed, driving direction, road conditions and the effect of lateral wind, the vehicle will shake left and right and back and forth, and rollover accidents occur from time to time.

SUMMARY OF THE INVENTION

In order to achieve the above purpose, the technical solutions of the embodiments of the present invention are implemented as follows: according to an aspect of the embodiments of the present invention, a protective device and method are provided, the method comprising: the device comprises: a translational power component and a support translation component; the translational power component includes: a cross-shaped moving body and a lead screw; through the cooperation of the moving body and the lead screw, the moving body is moved, so as to ensure the balance of the vehicle; the supporting translation component includes : base; the base is an I-shaped base, so that the vehicle is not easy to roll over.

In the above solution, it includes: the translational power component includes: a support rod, a top bearing, an intermediate bearing, and a power motor; the support rod is a support component of the translational power component; the top end of the lead screw and the top end bearing are nested in the At the same time, the bottom end of the lead screw is connected with the power motor; the cross-type moving body has a thread to cooperate with the lead screw, and the rotation of the lead screw will cause the cross-type moving body to move in translation, the The cross-type moving body is welded with the tank device, so the movement of the cross-type moving body causes the tank device to move.

In the above solution, it includes: the supporting translation component includes: a supporting plate, an inverted U-shaped sliding layer, an I-shaped base and a translation limiting device; the supporting plate is used to support the tank device of the vehicle, and is placed on the On the inverted U-shaped sliding layer; the inverted U-shaped sliding layer encloses the I-shaped base, and the outer side of the inverted U-shaped sliding layer is welded with the support plate to function as a sliding layer.

In the above scheme, it includes: the I-shaped base includes a top cylindrical slide block, a rolling ball, a side slide block, a side slide block spring, a bottom side slide block, a lubricating groove, and an I-shaped base body; The sliding block is located in the groove on the upper side of the I-shaped base, and has the function of supporting the inverted U-shaped sliding layer. When the inverted U-shaped sliding layer is translated, it drives the top cylindrical sliding block in the Roll in the groove on the upper side of the I-shaped base, thereby reducing the translation resistance of the support translation member.

The above solution includes: the rolling ball is located in the groove at the top end of the I-shaped base body, and has the function of supporting and guiding, reducing the translation resistance of the supporting translation member.

In the above solution, it includes: the side slider and the spring on the side cooperate with the inner side of the inverted U-shaped sliding layer to reduce and buffer the longitudinal acceleration generated when the vehicle accelerates or brakes to the inverted U-shaped sliding layer. Longitudinal impact force of the layer, and has a certain lubricating effect at the same time.

In the above solution, it includes: the bottom side sliding block is located in the groove of the I-shaped base body, which reduces and buffers the vertical acceleration of the inverted U-shaped sliding layer when the vehicle vibrates vertically, and simultaneously reduces the vertical acceleration of the inverted U-shaped sliding layer. The sliding friction of the inverted U-shaped sliding layer; the lubricating groove contains lubricating oil, which has the function of lubricating the sliding block of the bottom layer. The I-shaped base has the functions of supporting, damping, guiding and lubricating the sliding layer.

In the above solution, it includes: a translation limiting component, the translation limiting component includes: a contact plate, a buffer pad, abutting plate, and a rib plate; the contact plate is in close contact with the buffer pad, and the abutting plate and the rib The plates are welded together and fixed on the I-shaped base.

In the above solution, it includes: a tank body fastening component, the tank body fastening component includes: a tightening belt, a tightening nut, a tightening tooth, the tightening belt is used to fix the tank body device, and the tightening nut It cooperates with the tightening belt and is used to be fixed on the tightening teeth; the tightening teeth have holes in them, and the tightening belt passes through the holes of the tightening teeth and is blocked by the tightening nut. fixed on the support plate of the support translation member

According to another aspect of the embodiments of the present invention, a protection method is provided, the method comprising: applying the method to a protection device of an I-shaped base, the method comprising: acquiring the running state of the vehicle; When the vehicle turns sharply to the left, a first control command is obtained; when the vehicle turns sharply to the right, a second control command is obtained; wherein, the first control command is: the system controls the motor to drive the wire When the lever rotates, the cross-shaped moving body translates the tank device to the left, thereby shifting the center of gravity of the vehicle to the left to resist the centrifugal force to the right when the vehicle turns left; the second control command is: the system The control motor drives the lead screw to rotate to the other side, and translates the tank device to the right, thereby shifting the center of gravity of the vehicle to the right to resist the centrifugal force to the left when the vehicle is turned right.

The present invention provides a lead screw-based I-type protection device and method. The device includes: a translational power component and a support translational component; the translational power component includes: a cross-shaped moving body and a lead screw; The cooperation of the body and the lead screw makes the moving body move, so as to ensure the balance of the vehicle; the support and translation component includes: a base; the base is an I-shaped base, so that the vehicle is not easy to roll over.

Description of drawings

1 is a schematic diagram of the structural composition of a protective device in an embodiment of the present invention;

2 is a schematic diagram of another structural composition provided by an embodiment of the present invention;

3 is a schematic diagram of another structural composition provided by an embodiment of the present invention;

4 is a schematic diagram of another structural composition provided by an embodiment of the present invention;

5 is a schematic diagram of another structural composition provided by an embodiment of the present invention;

FIG. 6 is a flowchart provided by an embodiment of the present invention.

Detailed ways

In order to be able to understand the features and technical content of the present invention in more detail, the implementation of the present invention is described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the present invention.

FIG. 1-6 is a schematic diagram of the structure and composition of a protective device provided by an embodiment of the present invention, as shown in FIG. 1-6 .

The present invention provides a technical solution: a protective device, comprising a frame 3, a supporting translation part 1, a translation power part 2, and a tank body fastening part 4, the frame 3 is connected with the chassis of the vehicle, and the The support translation member 1 is fixed on the frame 3, and the translation power member 2 is fixed at the longitudinal middle position of the frame to provide power for the entire rollover translation system.

The supporting translation component 1 includes a supporting plate 11 , an inverted U-shaped sliding layer 12 , an I-shaped base 13 and a translation limiting component 14 . The support plate 11 is used to support the tank body of the vehicle, and is placed on the inverted U-shaped sliding layer 12; the inverted U-shaped sliding layer 12 encloses the I-shaped base 13, and the outer side is welded with the supporting plate 11 to function as a sliding layer; As shown in FIG. 4 , the I-shaped base 13 includes a top cylindrical slide block 131 , a rolling ball 132 , a side slide block 133 , a side slide block spring 134 , a bottom side slide block 135 , a lubricating groove 136 , and an I-shaped base body 137 ; The top cylindrical slider 131 is located in the groove on the upper side of the I-shaped base 137, and has the effect of supporting the inverted U-shaped sliding layer 12, and when the inverted U-shaped sliding layer 12 is translated, it can drive the top cylindrical The slider 131 rolls in the groove on the upper side of the I-shaped base 13, thereby reducing the translational resistance of the supporting translation member 1; the rolling ball 132 is located in the groove at the top of the I-shaped base 137, and has support and guide sliding It can reduce the translation resistance of the supporting translation member 1; the side slider 133 and the side spring 134 cooperate with the inner side of the inverted U-shaped sliding layer 12 to reduce and buffer the longitudinal acceleration generated when the vehicle accelerates or brakes. The longitudinal impact force of the inverted U-shaped sliding layer 12 also has a certain lubricating effect; the bottom side sliding block 135 is cylindrical and is located in the groove of the I-shaped base 137 to reduce and buffer the vertical vibration of the vehicle. The vertical acceleration of the inverted U-shaped sliding layer 12 reduces the sliding friction of the inverted U-shaped sliding layer 12 ; the lubricating groove 136 contains lubricating oil, which has the function of lubricating the bottom sliding block 135 . Therefore, the I-shaped base 13 has the functions of supporting, damping, guiding and lubricating the inverted U-shaped sliding layer 12 . The translation limiting member 14 is fixed on the frame 3 to limit the translation distance of the supporting translation member 1 and prevent the inverted U-shaped sliding layer 12 from falling off the I-shaped base 137 under extreme working conditions. Position and protection; the translation limiting member 14 specifically includes a contact plate 141, a buffer pad 142, abutting plate 143, and a rib 144. The contact plate 141 is in close contact with the buffer pad 142 and is made of a steel plate material. The buffer pad 142 is made of rubber The hollow sphere is made of material, and the abutting plate 143 and the rib plate 144 are welded together and fixed on the I-shaped base body 137 .

The fastening component 4 including the tank body includes: a fastening belt 41, a fastening nut 42, and a fastening tooth 43. The fastening belt 41 is used to fasten the tank body, and the fastening nut 42 cooperates with the fastening belt 41 to use It is fixed on the tightening teeth 43 , which have holes in the tightening teeth 43 , and the tightening strips 41 pass through the holes of the tightening teeth, and are fixed 42 on the support plate 11 supporting the translation member 1 by the tightening nuts 42 .

The translational power member 2 includes: a support rod 21 , a tip bearing 22 , a lead screw 23 , a cross-shaped moving body 24 , an intermediate bearing 25 , and a power motor 26 .

The support rod 21 is fixed on the frame 3 and is the supporting member of the entire translational power component 2; the top bearing 22 is fixed on the frame 3 to support the function of the lead screw 23; the top of the lead screw 23 is nested with the top bearing, The bottom end is connected with the power motor 26 to drive the cross-shaped moving body 24 to translate; the cross-shaped moving body 24 has threads in it to cooperate with the lead screw 23, and the rotation of the lead screw 23 will cause the cross-shaped moving body 24 to move in translation. The movable body 24 is welded with the can body, so the movement of the cross-shaped movable body 24 causes the movement of the can body. The power motor 26 provides power for the rotation of the lead screw 23 and is controlled by the controller.

In another embodiment, a control process of an anti-rollover translation system, the steps of which are:

(1) When the vehicle turns sharply to the left, the center of gravity of the vehicle is in a state of tilting to the right;

(2) At this time, the system controls the motor 26 to drive the lead screw 23 to rotate, and the cross-shaped moving body 24 translates the tank to the left, thereby shifting the center of gravity of the vehicle to the left to resist the centrifugal force to the right when the vehicle is turned left. , to prevent rollover accidents;

(3) Conversely, when the vehicle turns to the right, the center of gravity of the vehicle is in a state of leaning to the left;

(4) At this time, the system controls the motor 26 to drive the lead screw 23 to rotate to the other side, and translates the tank to the right, thereby shifting the center of gravity of the vehicle to the right to resist the centrifugal force to the left when the vehicle is turned right. Prevent rollover accidents;

Steps (1) to (4), analyze and process the data from the sensor test to obtain the overall lateral energy of the vehicle, including kinetic energy, potential energy and energy loss, and then control the translational power component 2 to automatically perform reverse translation correction to prevent rollover accidents. .

As shown in Figure 6, the lateral offset distance ΔS solution method: ΔS

为方向盘转角，k为转向系数，θ₁为轮胎侧偏角，

为m₂的横摆角速度，

为m₃的横摆角速度；w，r₀分别为车轮转速和车轮的滚动半径。Among them, W _Lat-all is the overall lateral energy, W _Lat-T , W _Lat-D , W _Lat-Waste are the lateral potential energy, lateral kinetic energy and lateral loss energy, respectively; m ₁ is the unsprung mass, m ₂ is the sprung mass (excluding the mass of the tank), m ₃ is the mass of the tank; h ₁ is the height of m ₁ , h ₂ is the height of m ₂ , h ₃ is the height of m ₃ ; v _tire is the longitudinal direction of the wheel Rolling speed, v _y1 is the lateral running speed of the wheel, v _y2 is the lateral running speed of m ₂ , v _y3 is the lateral running speed of m ₃ , v _wind is the lateral wind speed; W _damp-sus , W _damp-tire , W _damp-liquid , W _wind are suspension damping loss work, tire damping loss work, liquid sloshing loss work in tank and lateral wind loss work respectively; c _sus , c _tire , cliqui _id are suspension damping constant, tire lateral Damping constant, liquid sloshing damping constant; d is wheelbase,

is the steering wheel angle, k is the steering coefficient, θ ₁ is the tire slip angle,

is the yaw rate of _m2 ,

is the yaw rate of m ₃ ; w, r ₀ are the wheel speed and the rolling radius of the wheel, respectively.

Through this technical solution, the data detected by the sensor includes wheel speed, steering wheel angle, tank liquid ratio, wind speed, wind direction, etc. The sensor detection data of the above vehicle sensors are imported into the lateral translation calculator for analysis and calculation, and then enter the fuzzy PID control, Specifically divided into low-speed, medium-speed and high-speed fuzzy control, the lateral translation system is controlled according to the working conditions, and the control results are fed back until the desired effect is achieved.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A lead screw-based I-type protective device, characterized in that the device comprises: a translational power component and a support translational component; The translational power component includes: a cross-shaped moving body and a lead screw; Through the cooperation of the moving body and the lead screw, the moving body is moved, so as to ensure the balance of the vehicle; The supporting translation component includes: a base; The base is an I-shaped base, so that the vehicle is not easy to roll over. 2. The device of claim 1, comprising: The translational power components include: support rod, top bearing, intermediate bearing, power motor; the support rod is a support member of the translational power member; The top end of the lead screw is nested with the top bearing, and the bottom end of the lead screw is connected to the power motor; there are threads in the cross-shaped moving body to cooperate with the lead screw, and the rotation of the lead screw will cause the screw to rotate. The translation of the cross-shaped moving body is caused, and the cross-shaped moving body and the tank device are welded together, so the movement of the cross-type moving body causes the movement of the tank device. 3. The apparatus of claim 1, comprising: The support and translation components include: a support plate, an inverted U-shaped sliding layer, an I-shaped base and a translation limit device; The support plate is used to support the tank device of the vehicle, and is placed on the inverted U-shaped sliding layer; The inverted U-shaped sliding layer encloses the I-shaped base, and the outer side of the inverted U-shaped sliding layer is welded with the support plate to function as a sliding layer. 4. The device of claim 3, comprising: The I-shaped base includes a top cylindrical slide block, a rolling ball, a side slide block, a side slide block spring, a bottom side slide block, a lubricating groove, and an I-shaped base body; The top cylindrical slider is located in the groove on the upper side of the I-shaped base, and has the function of supporting the inverted U-shaped sliding layer. When the inverted U-shaped sliding layer is translated, it drives the top cylinder The sliding block rolls in the groove on the upper side of the I-shaped base, thereby reducing the translation resistance of the supporting translation member. 5. The apparatus of claim 4, comprising: The rolling ball is located in the groove at the top end of the I-shaped base body, and has the functions of supporting and guiding, reducing the translation resistance of the supporting translation member. 6. The apparatus of claim 5, comprising: The side slider and the spring on the side are used on the inner side of the inverted U-shaped sliding layer to reduce and buffer the longitudinal impact force on the inverted U-shaped sliding layer caused by the longitudinal acceleration generated when the vehicle accelerates or brakes, At the same time, it has a certain lubricating effect. 7. The apparatus of claim 6, comprising: The bottom side sliding block is located in the groove of the I-shaped base body, which reduces and buffers the vertical acceleration of the inverted U-shaped sliding layer when the vehicle vibrates vertically, and at the same time reduces the inverted U-shaped sliding layer. There is lubricating oil in the lubricating groove, which has the function of lubricating the sliding block of the bottom layer. The I-shaped base has the functions of supporting, damping, guiding and lubricating the sliding layer. 8. The device according to claim 7, characterized in that it comprises: a translation limiting member, The translation limiting component includes: a contact plate, a buffer pad, a butt plate, and a rib plate; The contact plate is in close contact with the buffer pad, and the abutting plate and the rib are welded together and fixed on the I-shaped base body. 9. The device according to claim 3, characterized in that it comprises: a tank body fastening part, The tank body fastening component includes: a tightening belt, a tightening nut, and a tightening tooth, the tightening belt is used for fixing the tank body device, and the tightening nut cooperates with the tightening belt for fixing on the fastening teeth; The tightening teeth have holes in them, and the tightening strips pass through the holes of the tightening teeth and are fixed on the support plate of the support translation member by the tightening nut. 10. A protection method, wherein the method is applied to a protection device of an I-shaped base, the method comprising: obtain the running state of the vehicle; When the vehicle turns sharply to the left, obtain the first control instruction; When the vehicle turns sharply to the right, obtain a second control instruction; The first control command is: the system controls the motor to drive the lead screw to rotate, and the cross-shaped moving body translates the tank device to the left, thereby shifting the center of gravity of the vehicle to the left to resist the direction of the vehicle when turning left. The second control command is: the system controls the motor to drive the lead screw to rotate to the other side, and translates the tank device to the right, thereby shifting the center of gravity of the vehicle to the right to resist The centrifugal force to the left when the vehicle turns right.

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