CN215114807U

CN215114807U - Lifting lug weighing sensor

Info

Publication number: CN215114807U
Application number: CN202121401827.5U
Authority: CN
Inventors: 吴强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-12-10
Anticipated expiration: 2031-06-23

Abstract

The utility model relates to a technical field of weighing especially relates to a lug weighing sensor, including the sensor body, the sensor body include the mounting panel and install in the joint piece of mounting panel terminal surface, the joint piece with mounting panel connection as an organic whole, this lug weighing sensor is standard sensor, has just directly carried out the demarcation after the production, consequently back on the automobile body of packing into, can realize installing promptly to use to can eliminate the influence that the vehicle can receive road surface levelness and self acceleration when the operation under the effect of levelness sensor and the acceleration sensor that are equipped with on the PCB control panel, thereby improve dynamic weighing's accuracy.

Description

Lifting lug weighing sensor

Technical Field

The utility model relates to a technical field that weighs especially relates to a lug weighing sensor.

Background

In recent years, along with the rapid development of economy in China, road traffic is developed rapidly, the road traffic safety, particularly the traffic safety situation of large freight vehicles, is very severe, the freight vehicles are overloaded to cause frequent traffic accidents, the weight detection of the freight vehicles is very important for the road traffic safety, and the dynamic weighing of the vehicles at present is mainly realized by letting the vehicles pass through weighbridge detection, but cannot realize comprehensive monitoring; in the transportation process, if the goods are lost, the goods cannot be found quickly; the vehicle-mounted dynamic weighing can monitor the load of the vehicle in the running process in real time, the loss of cargos can be found immediately, the sensor is mounted on the vehicle for the vehicle-mounted dynamic weighing, the load data is uploaded in real time, and the load data can be comprehensively monitored, so that the overweight problem of the freight vehicle is avoided.

In the field of dynamic weighing, the vehicle can be influenced by the levelness of the road surface and the self acceleration during running, so that the dynamic weighing system has deviation on monitoring the weight of the vehicle body during running of the vehicle, and the measurement precision is low.

SUMMERY OF THE UTILITY MODEL

Current situation to above-mentioned prior art, the utility model discloses a solve current dynamic weighing system, owing to receive the influence of vehicle operation road surface unevenness and self acceleration, and lead to the precision low to a lug weighing sensor is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a lifting lug weighing sensor comprises a sensor body, wherein the sensor body comprises a mounting plate and a clamping block arranged on the end face of the mounting plate, the clamping block and the mounting plate are integrally connected, a mounting hole is formed in the center of the clamping block, the mounting hole is divided into three layers, namely an a layer, a b layer and a c layer, a strain gauge is arranged on the a layer and used for sensing the stress of the sensor body, and a PCB control panel is arranged on the b layer and used for calculating the gravity according to the stress generated by the strain gauge;

a levelness sensor is arranged on the PCB control panel and used for measuring an inclination angle; the PCB control board is provided with an acceleration sensor for measuring acceleration; the measured inclination angle or acceleration is transmitted to the PCB control board, and the influence of levelness or acceleration on precision can be eliminated through calculation.

By adopting the technical scheme, the lifting lug weighing sensor is convenient to be installed on a vehicle by integrating the sensor into the lifting lug to realize dynamic weighing of the weight of a vehicle body when the vehicle runs only through the first through hole and the second through hole which are formed in the installation plate, the end surface of the installation plate is integrally connected with the clamping block, the clamping block not only can improve the stability of the vehicle installed on the vehicle through the first through hole and the second through hole, but also is internally provided with the strain gauge and the PCB control plate in the installation hole which is a layer a arranged on the installation surface of the installation hole, the PCB control plate is a layer b arranged on the installation surface of the installation hole and is connected with the sensor body through a lead, when gravity presses on the sensor body, the strain gauge senses the pressure caused by the gravity to the sensor body so as to sense the stress, and converts a stress strain signal into a pressure digital signal under the algorithm calculation of the PCB control plate, the sensor body is fed back to a monitoring display screen or a master controller, a levelness sensor is arranged on a PCB control panel, the inclination angle of the sensor body can be detected when the sensor body is subjected to levelness inclination, and the inclination angle is calculated by an algorithm of the PCB control panel, calculating to obtain accurate weight value by formula F '═ F cos alpha (F' is accurate weight value, F is value measured by strain gauge, alpha is inclination angle of sensor body) to eliminate influence of levelness on accuracy, arranging acceleration sensor on PCB control board, when the vehicle accelerates, the acceleration sensor can measure the acceleration value and calculate through the algorithm of the PCB control board, and calculating to obtain an accurate weight value through a formula F '═ F-ma (F' is an accurate weight value, F is a value measured by the strain gauge, m is a distance, and a is an acceleration), so as to eliminate the influence of the acceleration on the precision.

Further, a steel cap is arranged on the layer c and welded on the layer c.

Through adopting above-mentioned technical scheme, the welding has the steel cap on the c layer, can protect foil gage, PLC control panel and each sensor circuit in the mounting hole.

Further set up as, the side of joint piece is opened there is the wiring hole, be equipped with the pencil in the wiring hole, the pencil connect in the PCB control panel.

Through adopting above-mentioned technical scheme, the pencil that the PCB control panel passes through in the wiring hole is connected with the display screen or the master controller of vehicle, can guarantee that the pencil is straight not buckled when the wiring.

Compared with the prior art, the utility model has the advantages of:

through adopting above-mentioned technical scheme, this lug weighing sensor is standard sensor, has just directly carried out the demarcation after production, consequently on the automobile body of packing into back, can realize installing promptly and use to can eliminate the vehicle and can receive the influence of road surface levelness and self acceleration when the operation under the effect of levelness sensor and the acceleration sensor that are equipped with on the PCB control panel, thereby improve dynamic weighing's accuracy.

Drawings

Fig. 1 is a schematic structural view of a lifting lug weighing sensor of the present invention;

fig. 2 and 3 show that when the levelness is inclined, the levelness sensor can measure the inclination angle α, and calculate the formula F' ═ F × cos α by the PCB control board algorithm, so as to measure the accurate weight value;

fig. 4 shows that when the acceleration a exists, the acceleration sensor can measure the acceleration, and an accurate weight value is measured through a PCB control board algorithm calculation formula F' ═ F-ma.

Which comprises the following steps: 1. a sensor body; 11. mounting a plate; 111. a first through hole; 112. a second through hole; 12. a clamping block; 121. mounting holes; 122. a layer; 1221. a strain gauge; 123. b, layer; 1231. a PCB control board; 12311. a levelness sensor; 12312. an acceleration sensor; 124. c, layer; 1241. a steel cap; 125. a wiring hole; 1251. a wire harness.

Detailed Description

The invention has the conception that the sensors are integrated in the lifting lugs to form the lifting lug weighing sensor, the lifting lug weighing sensor is a standard component, calibration is carried out after production, so that the whole vehicle does not need to be calibrated after loading, the loading and the use are realized, the operation is simple and convenient, and in the actual vehicle operation, due to the influence of road conditions and self acceleration, under the arrangement of the levelness sensor 12311 and the acceleration sensor 12312, the influence of the levelness and the self acceleration of the road surfaces is avoided, the accuracy of dynamic weighing is improved, and the precision is improved.

As shown in fig. 1 to 4, the utility model discloses a lifting lug weighing sensor, including sensor body 1, sensor body 1 includes mounting panel 11 and installs in the joint piece 12 of mounting panel 11 terminal surface, and joint piece 12 is as an organic whole with mounting panel 11 and is connected, and the center of joint piece 12 is opened has mounting hole 121, and mounting hole 121 is divided into the three-layer, specifically is a layer 122, b layer 123 and c layer 124, is equipped with foil gage 1221 on a layer 122 for the stress of induction sensor body 1, and b layer 123 is provided with PCB control panel 1231 for calculate gravity according to the stress that foil gage 1221 produced; a levelness sensor 12311 is arranged on the PCB control board 1231 and is used for measuring an inclination angle; the PCB control board 1231 is provided with an acceleration sensor 12312 for measuring acceleration; the measured inclination angle or acceleration is transmitted to the PCB control panel 1231, the influence of levelness or acceleration on precision can be eliminated through calculation, the lifting lug weighing sensor is used for dynamically weighing the weight of a vehicle body when the vehicle runs by integrating the sensor into a lifting lug, the lifting lug weighing sensor can be conveniently installed on the vehicle only through a first through hole 111 and a second through hole 112 formed in a mounting plate 11, the end surface of the mounting plate 11 is integrally connected with a clamping block 12, the clamping block 12 not only can improve the stability of the vehicle installed on the vehicle through the first through hole 111 and the second through hole 112, but also a strain gauge 1221 and the PCB control panel 1231 are installed in a mounting hole 121 arranged in the center of the clamping block 12, the strain gauge 1221 is a layer 122 installed on the mounting surface of the mounting hole 121, the PCB control panel 1231 is a layer 123 installed on the mounting surface of the mounting hole 121 and is connected through a lead, when gravity is pressed on the sensor body 1, the strain gauge 1221 senses pressure caused by gravity to the sensor body 1, so as to sense stress strain, and the stress strain signal is converted into a pressure digital signal under the calculation of the algorithm of the PCB control board 1231 and fed back to a monitoring display screen or a master controller, the PCB control board 1231 is provided with a levelness sensor 12311, so that when the sensor body 1 is subjected to levelness inclination, the inclination angle of the sensor body 1 is measured, and the calculation is performed through the algorithm of the PCB control board 1231, and through the formula F '═ Cos alpha (F' is an accurate weight value, F is a value measured by the strain gauge 1221, and alpha is the inclination angle of the sensor body 1), an accurate weight value is calculated to eliminate the influence of levelness on the precision, the PCB control board 1231 is provided with an acceleration sensor 12312, when a vehicle is accelerated, the acceleration sensor can measure the acceleration value, and through the algorithm calculation of the PCB control board 1231, an accurate weight value is calculated through a formula F '═ F-ma (F' is an accurate weight value, F is a value measured by the strain gauge 1221, m is a distance, and a is an acceleration), so as to eliminate the influence of the acceleration on the precision.

And a steel cap 1241 is arranged on the c layer 124, and the steel cap 1241 is welded on the c layer 124 and can protect the strain gauge 1221 in the mounting hole 121, the PLC control board and each sensor circuit.

The side of joint piece 12 is opened there is wiring hole 125, is equipped with pencil 1251 in the wiring hole 125, and pencil 1251 connects in PCB control panel 1231, and PCB control panel 1231 is connected with the display screen or the master controller of vehicle through pencil 1251 in the wiring hole 125, can guarantee that pencil 1251 is straight not buckled when the wiring.

The implementation principle of the embodiment is as follows: in practical application, because the lifting lug weighing sensor is a standard sensor, the precision is high, calibration is carried out after delivery, batch production can be realized, and a user does not need to calibrate after installing the standard sensor on a vehicle body after purchasing, the mounting and using can be realized at any time, and the user can select the mounting number of the lifting lug weighing sensor according to the requirement of the user, so that the requirements of different customers are met; in the running process of a vehicle, under the action of gravity, the strain gauge 1221 induces stress strain by monitoring the force applied to the plurality of sensor bodies 1, so that the load of the whole vehicle is deduced, stress strain signals are converted into pressure digital signals through the PCB control board 1231, if the sensor bodies 1 are inclined due to uneven road surface, the inclination angle of the sensor bodies 1 can be measured through the levelness sensor 12311, and the influence of levelness on the precision is eliminated through the algorithm calculation of the PCB control board 1231; if the vehicle is accelerated, in order to eliminate the influence of the acceleration on the precision, the acceleration value can be measured by the acceleration sensor 12312, and the influence can be eliminated by the algorithm calculation of the PCB control board 1231, so that finally, a specific digital signal is fed back to the display screen or the overall main controller of the vehicle to combine the values of the plurality of sensor bodies 1 to be fed back to the display screen.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The lifting lug weighing sensor is characterized by comprising a sensor body (1), wherein the sensor body (1) comprises a mounting plate (11) and a clamping block (12) arranged on the end face of the mounting plate (11), the clamping block (12) is integrally connected with the mounting plate (11), a mounting hole (121) is formed in the center of the clamping block (12), the mounting hole (121) is divided into three layers, specifically, a layer (122), a layer (123) and a layer (124), a strain gauge (1221) is arranged on the layer (122) a and used for sensing the stress of the sensor body (1), and a PCB control board (1231) is arranged on the layer (123) b and used for calculating the gravity according to the stress generated by the strain gauge (1221);

a levelness sensor (12311) is arranged on the PCB control board (1231) and is used for measuring the inclination angle; an acceleration sensor (12312) is arranged on the PCB control board (1231) and is used for measuring acceleration; by transmitting the measured inclination angle or acceleration to the PCB control board (1231), the influence of levelness or acceleration on precision can be eliminated through calculation.

2. The lifting lug weighing sensor according to claim 1, wherein the mounting plate (11) is provided with a first through hole (111) and a second through hole (112), and the first through hole (111) and the second through hole (112) are symmetrically arranged at the position of the mounting hole (121).

3. The lifting lug weighing sensor according to claim 1, wherein a steel cap (1241) is provided on the c-layer (124), and the steel cap (1241) is welded to the c-layer (124).

4. The lifting lug weighing sensor according to claim 1, wherein the side surface of the clamping block (12) is provided with a wiring hole (125), a wiring harness (1251) is arranged in the wiring hole (125), and the wiring harness (1251) is connected to the PCB control board (1231).