CN106515879A - Automobile cargo carrying center of gravity adjusting mechanism - Google Patents

Abstract

The invention discloses a vehicle-used cargo center of gravity adjustment mechanism, which comprises a bottom support rod, a support plate and a cargo box, two slide rails are arranged above the bottom support rod, the support plate is arranged above the bottom support rod, and There is a slider on the lower side of the bottom, and the slider is connected with the slide rail; the cargo box is installed in the middle of the pallet; an adjustment mechanism is provided between the pallet and the bottom bracket, and the adjustment mechanism includes guide rails, adjustment The motor, the screw rod, and the connecting frame threaded with the screw rod; a pressure sensor is respectively arranged on the two bottom support rods, and a pulley is respectively arranged on the lower side of the supporting plate corresponding to the two pressure sensors, and the pulley is attached to the pressure sensor Together, the two pressure sensors are connected to a controller at the same time, and the controller is connected to the regulating motor, through which the forward or reverse rotation and the rotating speed of the regulating motor can be controlled. The invention can quickly detect the deviation of the center of gravity of the goods, and automatically adjust the center of gravity of the goods, thereby ensuring the safety of vehicles and goods during transportation.

Description

Cargo center of gravity adjustment mechanism

technical field

The invention relates to the technical field of vehicle safety transportation, in particular to a vehicle-used cargo center-of-gravity adjustment mechanism.

Background technique

At present, goods are mainly loaded and transported by trucks. Existing cargo boxes only have the function of carrying goods and are fixed on the frame. During transportation, due to road problems, vehicles are prone to bumps, rolls, etc., especially Especially in the process of turning, the vehicle rolls very obviously; this will lead to the deviation of the center of gravity of the vehicle and the cargo; especially in the process of fast driving, it is easy to cause accidents such as vehicle rollover and cargo falling, causing serious damage to the cargo transportation. Great security risk.

It can be seen that there is an urgent need for a vehicle center-of-gravity adjustment mechanism that can quickly respond to the offset of the vehicle's cargo center of gravity.

Contents of the invention

Aiming at the above-mentioned deficiencies in the prior art, the purpose of the present invention is how to solve the problems of vehicle rollover, cargo falling and other accidents easily caused by the deviation of the center of gravity of the cargo during the driving process of the existing vehicle with cargo, and provides a vehicle load The cargo center of gravity adjustment mechanism can quickly detect the deviation of the cargo center of gravity, and automatically adjust the cargo center of gravity, so as to ensure the safety of vehicles and cargo during transportation.

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a vehicle load center of gravity adjustment mechanism is characterized in that it includes a bottom support rod, a pallet and a cargo box, and the bottom support rods are two and Parallel to each other, there are two slide rails above the bottom support bar, the length direction of the slide rails is perpendicular to the length direction of the bottom support bar, and the two slide rails are respectively close to the two ends of the bottom support bar; Above the support bar, on the lower side of the pallet, there are several sliders corresponding to the positions of the two slide rails, and the sliders are connected with the slide rails; the cargo box is installed in the middle of the pallet and fixedly connected with the pallet ;

An adjustment mechanism is provided between the supporting plate and the bottom support rod, and the adjustment mechanism includes a guide rail, an adjustment motor, a screw rod, and a connecting frame that is threadedly matched with the screw rod; wherein, the guide rail is located in the middle of the two bottom support rods, and its The length direction is perpendicular to the length direction of the bottom support rod. The adjustment motor is installed on one end of the guide rail. One end of the screw rod is connected to the motor shaft of the adjustment motor through a coupling, and the other end is installed on the other end of the guide rail through a bearing and a bearing seat. At one end, the supporting plate is fixedly connected with the connecting frame;

A pressure sensor is also provided on the two bottom support rods respectively. On the lower side of the supporting plate, a pulley is respectively provided corresponding to the two pressure sensors. Vertically, the pressure at both ends of the container can be detected through two pressure sensors; the two pressure sensors are connected to a controller at the same time, and the controller is connected to the regulating motor, and the forward or reverse rotation and the speed of the regulating motor can be controlled through the controller.

Further, the control process of the controller is as follows:

1) After the controller starts, wait for a certain period of time until the two pressure sensors are stable;

2) At intervals of a certain time T1, two pressure sensors are used to detect the pressure generated at both ends of the container, and at the same time, the speed sensor is used to detect the running speed of the vehicle, and the steering wheel angle is detected by the angle sensor;

3) The controller judges whether the vehicle speed is lower than the safe driving speed, and judges whether the vehicle is turning, and calculates the difference between the two pressure sensors;

4) When the driving speed is lower than the safe driving speed and the vehicle is going straight:

a. When the pressure difference ΔF of the two pressure sensors is positive and greater than 1N, the motor is controlled by the controller to rotate forward or reverse for a certain time T2, T2>T1;

b. When the pressure difference ΔF of the two pressure sensors is negative and less than -1N, the controller controls and adjusts the motor to rotate reversely or forwardly for a certain time T2, T2>T1;

c. When the pressure difference ΔF of the two pressure sensors is greater than -1N and less than 1N, the controller controls and adjusts the motor to not rotate;

When the driving speed is lower than the safe driving speed and the vehicle is turning:

d. The controller controls and adjusts the motor to continuously drive the slider to move towards the inner diameter of the turn;

5) When the driving speed is greater than the safe driving speed and the vehicle is going straight: the control process of the controller is consistent with a, b, and c in step 4);

When the driving speed is greater than the safe driving speed and the vehicle is turning: the pressure difference ΔF' between the inner pressure sensor and the outer pressure sensor, when ΔF'>0, the controller controls the adjustment motor not to work, when ΔF'≤0, the The controller controls and adjusts the motor to drive the slider to move towards the inner diameter of the turn for 1s;

6) Repeat step 2) - step 6).

Further, guide grooves are provided on both sides of the guide rail along its length direction, and projections are provided on the connecting frame corresponding to the two guide grooves, and the projections extend into the guide grooves and can slide along the guide grooves.

Compared with prior art, the present invention has following advantage:

1. Simple structure, easy to use, good stability; when going straight, the vehicle and cargo are more stable; when turning, it is not easy to roll over and the cargo is not easy to fall.

2. It can quickly detect the state of the cargo, and respond and adjust it quickly, so as to ensure the stability of the cargo during driving and ensure the safety of the vehicle and cargo during transportation.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a structural schematic diagram of the adjustment mechanism.

In the figure: 1—bottom support rod, 2—pallet, 3—cargo box, 4—sliding rail, 5—slider, 6—guiding rail, 7—adjusting motor, 8—screw rod, 9—connecting frame, 10— Pressure Sensor.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment: Referring to FIG. 1 and FIG. 2 , a vehicle load center of gravity adjustment mechanism includes a bottom support rod 1 , a pallet 2 and a cargo box 3 . The bottom support rods 1 are two and parallel to each other, two slide rails 4 are arranged above the bottom support rod 1, the length direction of the slide rails 4 is perpendicular to the length direction of the bottom support rod 1, and the two slide rails 4 are respectively Close to both ends of the bottom support rod 1. The supporting plate 2 is located above the bottom support rod 1, and on the lower side of the supporting plate 2, several slide blocks 5 are respectively arranged at the positions corresponding to the two slide rails 4, and the slide blocks 5 are slidably connected with the slide rails 4; Said container 3 is installed in the middle part of pallet 2, and is fixedly connected with pallet 2.

An adjustment mechanism is provided between the supporting plate 2 and the bottom support rod 1 , and the adjustment mechanism includes a guide rail 6 , an adjustment motor 7 , a screw 8 and a connecting frame 9 threadedly engaged with the screw 8 . Wherein, the guide rail 6 is located in the middle of the two bottom support rods 1, and its length direction is perpendicular to the length direction of the bottom support rod 1. The adjustment motor 7 is installed on one end of the guide rail 6, and one end of the screw rod 8 is passed through a shaft coupling. It is connected with the motor shaft of the adjusting motor 7, and the other end is installed on the other end of the guide rail 6 through a bearing and a bearing seat, and the supporting plate 2 is fixedly connected with the connecting frame 9. During specific implementation, the two sides of the guide rail 6 are provided with guide grooves along its length direction, and on the connecting frame 9, corresponding two guide grooves are provided with projections, and the projections extend into the guide grooves and can slide along the guide grooves. ; So that the pallet 2 and the cargo box 3 are more stable during the moving process.

Also be respectively provided with a pressure sensor 10 on two support rods 1 at the bottom, on the underside of supporting plate 2, corresponding two pressure sensors 10 are respectively provided with a pulley, this pulley and pressure sensor 10 fit together, and the axial direction of pulley and The axial direction of the screw rod 8 is vertical, and the pressure at both ends of the container 3 can be detected by two pressure sensors 10; wherein, the pressure sensor 10 is a highly sensitive sensor (such as a strain gauge pressure sensor 10), and the supporting plate 2 is stressed by a pulley. The resulting deformation is transmitted to the pressure sensor 10, thereby detecting the pressure at both ends of the pallet 2 box; the joint between the pulley and the pressure sensor 10 can effectively reduce the friction generated during the movement, thereby effectively improving the accuracy of pressure detection sex. During specific implementation, the two pressure sensors 10 are respectively located on both sides of the adjustment structure, and are respectively close to the opposite corners of the cargo box 3. The weights of the two opposite corners of the cargo box 3 can be detected by the two pressure sensors 10, thereby better analyzing and measuring Pressure at both ends of the box. Two pressure sensors 10 are connected with a controller at the same time, and the controller is connected with the regulating motor 7, and the forward or reverse rotation and the rotating speed of the regulating motor 7 can be controlled by the controller; and the moving speed of the slider 5 can be realized as 1- 40mm/s; according to the needs, the adjustment of the moving speed of the slider 5 can be realized by setting the controller parameters.

The control process of the controller is as follows:

1) After the controller starts, wait for a certain period of time until the two pressure sensors are stable;

2) At intervals of a certain time T1, two pressure sensors are used to detect the pressure generated at both ends of the container, and at the same time, the speed sensor is used to detect the running speed of the vehicle, and the steering wheel angle is detected by the angle sensor;

3) The controller judges whether the vehicle speed is lower than the safe driving speed, and judges whether the vehicle is turning, and calculates the difference between the two pressure sensors;

4) When the driving speed is lower than the safe driving speed and the vehicle is going straight:

a. When the pressure difference ΔF of the two pressure sensors is positive and greater than 1N, the motor is controlled by the controller to rotate forward or reverse for a certain time T2, T2>T1;

b. When the pressure difference ΔF of the two pressure sensors is negative and less than -1N, the controller controls and adjusts the motor to rotate reversely or forwardly for a certain time T2, T2>T1;

c. When the pressure difference ΔF of the two pressure sensors is greater than -1N and less than 1N, the controller controls and adjusts the motor to not rotate;

When the driving speed is lower than the safe driving speed and the vehicle is turning:

d. The controller controls and adjusts the motor to continuously drive the slider to move towards the inner diameter of the turn;

5) When the driving speed is greater than the safe driving speed and the vehicle is going straight: the control process of the controller is consistent with a, b, and c in step 4);

When the driving speed is greater than the safe driving speed and the vehicle is turning: the pressure difference ΔF' between the inner pressure sensor and the outer pressure sensor, when ΔF'>0, the controller controls the adjustment motor not to work, when ΔF'≤0, the The controller controls and adjusts the motor to drive the slider to move towards the inner diameter of the turn for 1s;

6) Repeat step 2) - step 6).

When in use, the adjustment mechanism is installed at the bottom of the carriage, and then the goods are packed in the cargo box, and then the controller can be started, which is convenient to use.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit the technical solutions. Those skilled in the art should understand that those who modify or replace the technical solutions of the present invention without departing from the present technology The purpose and scope of the scheme should be included in the scope of the claims of the present invention.

Claims (3)

1. a kind of automobile-used loading gravity center adjusting mechanism, it is characterised in that：Including collet bar, supporting plate and container, the collet bar is Two and it is parallel to each other, two slide rails is provided with above collet bar, the length direction of the slide rail is hung down with the length direction of collet bar Directly, and two slide rails respectively close to collet bar two ends；The supporting plate above collet bar, in the downside of supporting plate, slide by correspondence two The position of rail is respectively equipped with several piece slide block, and the slide block is coordinated with slide rail and is connected；The container is installed in the middle part of supporting plate, and with support Plate is fixedly connected；

Be provided with governor motion between supporting plate and collet bar, the governor motion include guide rail, regulation motor, screw mandrel and with silk The link that bar screw thread coordinates；Wherein, the guide rail is located in the middle part of two collet bars, and its length direction and collet pole length direction Vertically, the regulation motor is installed on one end of guide rail, and one end of the screw mandrel is by shaft coupling and the motor shaft of regulation motor It is connected, the other end is installed on the other end of guide rail by bearing and bearing block, and the supporting plate is fixedly connected with link；

A pressure sensor is further respectively had on two collet bars, in the downside of supporting plate, two pressure sensors of correspondence are respectively equipped with One pulley, the pulley are fit together with pressure sensor, and the axial direction of pulley is axially vertical with screw mandrel, are passed by two pressure Sensor can detect the pressure at container two ends；Two pressure sensors are connected with a controller simultaneously, the controller and regulation motor It is connected, the forward or reverse and rotating speed of motor can be controlled to adjust by the controller.

2. a kind of automobile-used loading gravity center adjusting mechanism according to claim 1, it is characterised in that：The control of the controller Process is as follows：

1）After controller starts, certain hour is waited, until two pressure sensors are stable；

2）At interval of certain time interval T 1, the pressure that container two ends are produced to which is detected by two pressure sensors, meanwhile, by inspection Degree of the testing the speed sensor detected vehicle speed of service, and steering wheel angle is detected by rotary angle transmitter；

3）Whether Vehicle Speed is judged less than safe velocity by controller, and judges whether vehicle turns, while Calculate the difference between two pressure sensors；

4）When speed of operation is less than safe velocity, and during vehicle straight trip：

A, the pressure difference value Δ F of two pressure sensors be on the occasion of, and more than 1N when, by controller control to adjust motor rotate forward or Reversion certain time interval T 2, T2 ＞ T1；

B, the pressure difference value Δ F of two pressure sensors are negative value, and during less than -1N, control to adjust motor reversal by controller Or rotate forward certain time interval T 2, T2 ＞ T1；

When c, the pressure difference value Δ F of two pressure sensors are less than 1N more than -1N, motor are controlled to adjust by controller and is not rotated；

When speed of operation is less than safe velocity, and Ackermann steer angle：

D, by controller control to adjust motor continue band movable slider towards turning internal diameter direction move；

5）When speed of operation is more than safe velocity, and during vehicle straight trip：The control process of controller and step 4）Middle a, b, c Unanimously；

When speed of operation is more than safe velocity, and Ackermann steer angle：Inside pressure sensor and outside pressure sensor Pressure difference value Δ F ', as Δ F ' ＞ 0, controller control and regulation motor does not work, when Δ F '≤0, controller control and regulation Motor belt motor movable slider moves 1s towards turning internal diameter direction；

6）Repeat step 2）Step 6）.

3. a kind of automobile-used loading gravity center adjusting mechanism according to claim 1, it is characterised in that：The guide rail both sides are along which Length direction is provided with gathering sill, and on link, two gathering sills of correspondence are provided with projection, and the projection is stretched in gathering sill, and energy Slide along gathering sill.