CN214200333U

CN214200333U - System for vehicle-mounted dynamic weighing

Info

Publication number: CN214200333U
Application number: CN202023040740.8U
Authority: CN
Inventors: 吴强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-14
Anticipated expiration: 2030-12-17

Abstract

The utility model relates to the technical field of weighing, in particular to a system for vehicle-mounted dynamic weighing, which comprises a frame, wherein a lifting lug support is fixedly connected on the frame, one side of the lifting lug support is connected with the side surface of the frame, the other side of the lifting lug support is connected with the bottom of the frame, the lifting lug support is connected with one end of a lifting lug sensor, the other end of the lifting lug sensor is fixedly connected with a plate spring, the weight of the whole vehicle is applied on the frame, the gravity is transmitted to the plate spring through the lifting lug sensor, the plate spring transmits the gravity to an axle and a tire, a strain gauge is arranged in the lifting lug sensor, thereby realizing the vehicle-mounted dynamic weighing, and the designed structure of the lifting lug sensor can realize quick disassembly and assembly through a shaft pin without calibration after the assembly, and the real realization of instant assembly and use, the maintenance is convenient.

Description

System for vehicle-mounted dynamic weighing

Technical Field

The utility model relates to a technical field that weighs especially relates to a system for on-vehicle dynamic weighing.

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.

The current vehicle-mounted dynamic weighing scheme is that original parts are reprocessed at places such as axles, beams, wheels and the like, and then are attached with sensing elements; the schemes need to modify the whole vehicle to different degrees, and after the whole vehicle is installed, a series of calibrations need to be carried out on the whole vehicle, so that the batch production cannot be realized, and the scheme cannot be used in the front-loading market of the whole vehicle; the method is only used for aftermarket in the logistics industry, and has the advantages of high cost, time-consuming installation, short service life and poor precision.

SUMMERY OF THE UTILITY MODEL

Current situation to above-mentioned prior art, the utility model provides a can be used to load on-vehicle weighing scheme of batchization before whole car, a standardized product, the installation is simple, need not whole car and marks, and is with low costs, high accuracy, longe-lived.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a system for vehicle-mounted dynamic weighing comprises a vehicle frame, wherein a lifting lug support is fixedly connected to the vehicle frame and connected with one end of a lifting lug sensor, the other end of the lifting lug sensor is fixedly connected to a plate spring, the weight of the whole vehicle is applied to the vehicle frame, gravity is conducted to the plate spring through the lifting lug sensor, the plate spring conducts the gravity to an axle and a tire, a strain gauge is installed in the lifting lug sensor, so that the vehicle-mounted dynamic weighing is realized, a first through hole is formed in the upper end of the end face of the lifting lug sensor, a second through hole is formed in the lower end of the end face of the lifting lug sensor, the first through hole is connected with the lifting lug support, the second through hole is connected with the plate spring, a mounting seat is arranged in the middle of the lifting lug sensor, a mounting hole is formed in the mounting seat, and the strain gauge is installed in the mounting hole, under the action of gravity, the strain gauge induces stress strain by monitoring the force applied to the lifting lug sensor, so that the load of the whole vehicle is deduced.

By adopting the technical scheme, the lifting lug sensor is integrated in the lifting lug, so that the quick and convenient installation can be realized only by replacing the lifting lug sensor with the original lifting lug on the whole vehicle, the service life can be prolonged, the problems that the existing vehicle-mounted dynamic weighing adopts a scheme that original parts are reprocessed at places such as axles, beams, wheels and the like and then inductive elements are attached, the installation is complicated and the service life is short are effectively solved; and under the action of gravity, the strain gauge induces stress strain by monitoring the force applied to the lifting lug sensor, so that the load of the whole vehicle is deduced, and the measurement precision of the lifting lug sensor can be improved.

The strain gauge is further connected with the circuit board through a wire, the circuit board is installed in the mounting hole, the circuit board is connected with the controller and converts stress-strain signals into pressure digital signals, and the controller calculates all the pressure digital signals transmitted by the circuit board in the whole vehicle through an algorithm and then feeds the pressure digital signals back to the vehicle-mounted display or the whole vehicle controller, so that the load of the vehicle in the driving process is monitored in real time.

By adopting the technical scheme, the circuit board converts the stress-strain signal into the pressure digital signal, and the pressure digital signal is calculated by the controller algorithm and then fed back to the vehicle-mounted display or the whole vehicle controller, so that the load of the vehicle in the driving process can be monitored in real time.

The side surface of the lifting lug sensor is provided with a wiring hole, and the circuit board penetrates out of the wiring hole through a wiring harness and is connected with the main controller.

Through adopting above-mentioned technical scheme, some pencil that weld on the circuit board wear out and are connected with main control unit through the wiring hole, can guarantee that the pencil keeps in the same direction as straight can not take place to buckle.

Further, a steel cap is covered at the mounting hole.

Through adopting above-mentioned technical scheme, the setting up of steel cap makes interior strainometer of installation and mounting hole and circuit board can not expose in the air to play dustproof and waterproof's effect, and can consequently improve life-span.

The two lifting lug sensors penetrate through the first through hole through a first bolt and are connected with the lifting lug support, and the second bolt penetrates through the second through hole and is connected with the plate spring.

Through adopting above-mentioned technical scheme, the lug sensor is standard sensor, then need not to mark again after packing into on the automobile body to the realization is adorned promptly and is used, and adopts the connected mode of pivot can realize this lug sensor's convenient dismouting, the maintenance of being convenient for, thereby reduce cost.

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

by adopting the technical scheme, the lifting lug sensor in the system for vehicle-mounted dynamic weighing is a standard sensor, and is directly calibrated after production, so that the lifting lug sensor can be used after being installed on a vehicle body, and is convenient to disassemble and maintain, and the strain gauge arranged in the lifting lug sensor induces stress strain by monitoring the force applied to the lifting lug sensor, so that the load of the whole vehicle is deduced, the stress strain signal is converted into a pressure digital signal through the circuit board, and the recompression digital signal is fed back to the vehicle-mounted display after being calculated by the controller algorithm, so that the load of the vehicle in the driving process is monitored in real time.

Drawings

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

fig. 2 is a schematic structural diagram of a system for vehicle-mounted dynamic weighing of the present invention.

Which comprises the following steps: 1. a frame; 11. a lifting lug support; 2. a lifting lug sensor; 21. a first through hole; 22. a second through hole; 23. a mounting seat; 24. mounting holes; 25. a strain gauge; 26. a circuit board; 27. a wiring hole; 28. a wire harness; 29. a steel cap; 210. a first latch; 211. a second bolt; 3. a leaf spring.

Detailed Description

The invention has the conception that the sensor is integrated in the lifting lug to form the lifting lug sensor, the lifting lug sensor is a standard part, and calibration is carried out after production, so that after loading, the whole vehicle does not need to be calibrated, and the vehicle can be used after being loaded, and is simple and convenient.

As shown in fig. 1 to 2, the utility model discloses a system for vehicle dynamic weighing, which comprises a frame 1, a lifting lug support 11 is fixedly connected on the frame 1, the lifting lug support 11 is connected with one end of a lifting lug sensor 2, the other end of the lifting lug sensor 2 is fixedly connected with a plate spring, the weight of the whole vehicle is applied on the frame 1, the gravity is transmitted to the plate spring through the lifting lug sensor 2, the plate spring transmits the gravity to an axle and a tire, a strain gauge 25 is installed in the lifting lug sensor 2, thereby realizing the vehicle dynamic weighing, the upper end of the end surface of the lifting lug sensor 2 is provided with a first through hole 21, the lower end of the end surface of the lifting lug sensor 2 is provided with a second through hole 22, the first through hole 21 is connected with the lifting lug support 11, the second through hole 22 is connected with the plate spring, the middle part of the lifting lug sensor 2 is provided with a mounting seat 23, the mounting seat 23 is provided with a mounting hole 24, the strain gauge 25 is installed in the mounting hole 24, under the action of gravity, the strain gauge 25 induces stress strain by monitoring the force applied to the lifting lug sensor 2, so that the load of the whole vehicle is deduced, the lifting lug sensor 2 is integrated in a lifting lug, so that the lifting lug sensor 2 and the original lifting lug on the whole vehicle are replaced, the quick and convenient installation can be realized, the service life can be prolonged, the problems that the conventional vehicle-mounted dynamic weighing adopts a scheme that the original parts are reprocessed at the positions of axles, beams, wheels and the like and then are adhered with induction elements are effectively solved, the installation is complicated and the service life is short; and under the action of gravity, the strain gauge 25 induces stress strain by monitoring the force applied to the lifting lug sensor 2, so that the load of the whole vehicle is deduced, and the measurement accuracy of the lifting lug sensor 2 can be improved.

The strain gauges 25 are connected with a circuit board 26 through leads, the circuit board 26 is installed in the installation hole 24, the circuit board 26 is connected with a controller, stress strain signals are converted into pressure digital signals through the circuit board 26, the controller feeds the pressure digital signals transmitted by all the circuit boards 26 in the whole vehicle back to a vehicle-mounted display or a vehicle controller after algorithm calculation, and therefore the load of the vehicle in the driving process is monitored in real time.

The side of the lifting lug sensor 2 is provided with a wiring hole 27, the circuit board 26 penetrates out of the wiring hole 27 through a wiring harness 28 and is connected with a main controller, and the wiring harness 28 welded on the circuit board 26 penetrates out of the wiring hole 27 and is connected with the main controller, so that the wiring harness 28 can be kept straight and cannot be bent.

The mounting hole 24 is covered by a steel cap 29, and the steel cap 29 is arranged so that the strain gauge 25 and the circuit board 26 in the mounting hole 24 are not exposed to the air, thereby achieving the dustproof and waterproof effects and prolonging the service life.

The lifting lug sensors 2 are two, pass through first through-hole 21 through first bolt 210 and be connected with lifting lug support 11, pass second through-hole 22 through second bolt 211 and be connected with leaf spring 3, lifting lug sensors 2 are standard sensors, then need not to mark after on the automobile body of packing into again to the realization is adorned promptly and is used, and the connected mode that adopts the pivot can realize this lifting lug sensors 2's convenient dismouting, the maintenance of being convenient for, thereby reduce cost.

The implementation principle of the embodiment is as follows: the system for vehicle-mounted dynamic weighing can be used for vehicle models shown in the figures, because the lifting lug sensors 2 in the system are standard sensors, the precision is high, the calibration is carried out after the system leaves the factory, the batch production can be realized, the user can realize the random use of the system without calibrating after installing the standard sensors on a vehicle body after purchasing, and the user can select the installation number of the lifting lug sensors 2 according to the self requirement, thereby meeting the requirements of different customers, the specific installation mode is that the original lifting lugs on the vehicle needing to install the lifting lug sensors 2 are firstly dismantled, the first bolts 210 penetrate through the first through holes 21 to be connected with the lifting lug support 11 after being dismantled, the second bolts 211 penetrate through the second through holes 22 to be connected with the plate springs 3 and carry out bolt fixing on the plate springs, the quick installation of the system for vehicle-mounted dynamic weighing can be realized, the wiring harness 28 of the circuit board 26 is connected with the main controller, so that the installation can be finished, and the disassembly is convenient and the maintenance is convenient; in the running process of the vehicle, under the action of gravity, the strain gauge 25 induces stress strain by monitoring the force applied to the lifting lug sensor 2, so that the load of the whole vehicle is deduced, the stress strain signal is converted into a pressure digital signal through the circuit board 26, and the controller feeds back the pressure digital signal transmitted by all the circuit boards 26 in the whole vehicle to the vehicle-mounted display or the whole vehicle controller after calculating through an algorithm, so that the load of the vehicle in the running process is monitored in real time.

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 system for vehicle-mounted dynamic weighing is characterized by comprising a vehicle frame (1), wherein a lifting lug support (11) is fixedly connected to the vehicle frame (1), the lifting lug support (11) is connected with one end of a lifting lug sensor (2), the other end of the lifting lug sensor (2) is fixedly connected to a plate spring (3), the weight of the whole vehicle is exerted on the vehicle frame (1), the gravity is conducted to the plate spring (3) through the lifting lug sensor (2), the gravity is conducted to an axle and a tire through the plate spring (3), a strain gauge (25) is installed in the lifting lug sensor (2), so that the vehicle-mounted dynamic weighing is realized, a first through hole (21) is formed in the upper end of the end face of the lifting lug sensor (2), a second through hole (22) is formed in the lower end face of the lifting lug sensor (2), and the first through hole (21) is connected with the lifting lug support (11), second through-hole (22) with leaf spring (3) are connected, the intermediate part of lug sensor (2) is equipped with mount pad (23), it has mounting hole (24) to open on mount pad (23), strainometer (25) install in mounting hole (24), under the action of gravity, strainometer (25) are through monitoring application in force on lug sensor (2) and response stress strain to deduce whole car load.

2. The system for vehicle-mounted dynamic weighing according to claim 1, wherein the strain gauge (25) is connected with a circuit board (26) through a wire, the circuit board (26) is installed in the installation hole (24), the circuit board (26) is connected with a controller, stress-strain signals are converted into pressure digital signals through the circuit board (26), and the controller feeds back all the pressure digital signals transmitted by the circuit board (26) in the whole vehicle to a vehicle-mounted display or a vehicle controller after algorithm calculation, so that the load of the vehicle in the driving process is monitored in real time.

3. A system for vehicle dynamic weighing according to claim 2, wherein said ear sensor (2) is provided with wiring holes (27) on its side, and said circuit board (26) is passed out of said wiring holes (27) by means of a wire harness (28) and connected to said controller.

4. A system for on-board dynamic weighing according to claim 3, characterised in that the mounting hole (24) is covered with a steel cap (29).

5. A system for vehicle dynamic weighing according to claim 4, characterised in that said shackle sensors (2) are two and are connected to said shackle bracket (11) through said first through hole (21) by means of a first pin (210) and to said leaf spring (3) through said second through hole (22) by means of a second pin (211).