CN205228611U - Vehicle number of axles recognition device - Google Patents

Abstract

The utility model relates to a vehicle axle number identification device, which includes a sensor, which is characterized in that the sensor is arranged on the upper surface of a base, and the base is connected to the end edge of a truck scale body in the direction of vehicle travel. Preferably, the sensor can be a strip-shaped structure, and the lower surface of the sensor is provided with a through groove along the length direction of the sensor; the sensor is connected to the base by a plurality of screws. Compared with the prior art, the vehicle axle number identification device provided by the utility model directly installs the sensor on the end of the truck scale body through the base, does not need other structural parts as the carrier of transmission, has fewer mechanical parts, and has a simple structure , high signal response frequency, good detection accuracy, low cost, low failure rate and long service life.

Description

A vehicle axle number recognition device

technical field

The utility model relates to metering equipment, in particular to a vehicle axle number identification device.

Background technique

In highway overrun detection methods, vehicle weighing is widely used because of its high weighing accuracy. At present, in the vehicle weighing system, the traditional vehicle axle number identification method requires a separate identification device, which is installed separately from the truck scale, and requires a separate concrete foundation, which is difficult to install and maintain, and the cost is high. Misjudgments often occur.

The Chinese utility model patent with the publication number CN202562593U discloses a "vehicle-type weighing and axle number identification device", which includes an electronic truck scale, and the electronic truck scale body is equipped with an axle number identification platform. The number identification weighing platform includes a panel, a support beam, a support base and a sensor module, the support beam and the support base are connected to the end of the electronic truck scale scale body; the axis number identification weighing platform is installed on the surface near the end of the electronic truck scale. This utility model patent integrates the design of the axle number identification device and the electronic truck scale, avoiding the trouble of pouring concrete foundation separately for the axle number identification device. However, in this axle number recognition device, the axle sensor pressing plate is arranged between the sensor and the fixed end, and the axle sensor pressing plate is connected by bolts at both ends, and the middle position in the entire length direction cannot be used to fix the structural parts; in use, the axle sensor pressing plate is in the tire Under long-term action, it is prone to bending deformation, and the bolts at both ends will also fail under the long-term bending moment, causing the structural parts to separate from the truck scale body, causing safety accidents; in addition, the wheel axle signal of this structure is stressed through the axle sensor pressure plate It will be transmitted to the sensor, which will reduce the response frequency of the actual use of the sensor and easily cause misjudgment.

Contents of the invention

The technical problem to be solved by the utility model is to provide a vehicle axle number identification device with long service life, high signal response frequency and good detection accuracy in view of the current state of the prior art.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is: the vehicle axle number recognition device includes a sensor, which is characterized in that the sensor is arranged on the upper surface of the base, and the base is connected to the vehicle in the traveling direction of the vehicle scale body. on the edge.

The sensor can be a strip-shaped structure, and the lower surface of the sensor is provided with a through groove along the length direction of the sensor; the sensor is connected to the base by a plurality of screws. The structure can effectively prevent the sensor from detaching from the scale body of the truck scale, thereby prolonging the service life of the identification device and ensuring detection accuracy.

As an improvement, there may be two sensors, which are butted together along the length direction. Due to the large distance between the two wheels of the car, only one sensor is used, the length of the sensor will be very long, the processing is difficult and the processing cost is high. This solution adopts splicing of two sensors, which greatly reduces the processing difficulty and cost of the sensor.

The base includes a base plate connected with the scale body of the truck scale, and the base plate is supported on a plurality of support plates; each support plate is arranged at intervals. The supporting plate acts as a reinforcing rib, which greatly improves the strength of the base, effectively avoids the irreversible deformation of the substrate, and further ensures the detection accuracy. The connection method between the substrate and the truck scale body is preferably welding, and of course other connection methods can also be selected as required.

Preferably, the sensor can be level with the height of the scale body of the truck scale.

Compared with the prior art, the vehicle axle number identification device provided by the utility model directly installs the sensor on the end of the truck scale body through the base, does not need other structural parts as the carrier of transmission, has fewer mechanical parts, and has a simple structure , high signal response frequency, good detection accuracy, low cost, low failure rate, and long service life; in the optimal solution, two sensors are spliced and used, which further reduces the processing difficulty and cost of the sensor.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of an exploded structure of an embodiment of the present invention.

detailed description

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the vehicle axle number recognition device includes:

The sensor 1 is a long plate-shaped structure, and there are two, which are butted along the length direction. The lower surface of each sensor 1 is provided with a through groove 11 along the length direction of the sensor. If the width requirement is not high, it can also be designed as an extended type sensor 1; the sensor 1 is installed on the upper surface of the base plate 21 by a plurality of screws 3. The sensor 1 can be any one of the prior art as required, such as a current sensor, a voltage sensor, and the like.

The base 2 is the installation base of the sensor, including a base plate 21 welded together with the truck scale body 4, and the base plate 21 is supported on a plurality of support plates 22; each support plate 22 is a vertical plate, arranged at intervals along the length direction of the base plate. The base plate 21 is welded on the front end edge of the truck scale body 4 in the traveling direction of the vehicle.

After the vehicle axle number recognition device is installed, the upper surface of the sensor 1 is flush with the upper surface of the truck scale body 4 .

The working principle of the vehicle axle number recognition device is described as follows:

When the vehicle enters, when the front wheel of the vehicle passes the sensor, the sensor outputs the first data; when the second pair of wheels passes the sensor, it outputs the second data; when the third pair of wheels passes the sensor, it outputs the third data; until For the last pair of wheels, output the last data. The number of times the sensor outputs data is the number of axles of the car.

Claims (5)

1. a vehicle number of axle recognition device, comprise sensor (1), it is characterized in that described sensor (1) is arranged on the upper surface of base (2), described base (2) is connected on the ora terminalis in truck scale body (4) vehicle to run direction.

2. vehicle number of axle recognition device according to claim 1, it is characterized in that described sensor (1) is for long strip-board shape structure, the lower surface of described sensor (1) is provided with through groove (11) along sensor length direction; Described sensor (1) is connected on described base (2) by multiple screw (3).

3. vehicle number of axle recognition device according to claim 2, is characterized in that described sensor (1) has two, is docking together along its length, if width requirement is not high, also can be designed as a king-size sensor.

4. the vehicle number of axle recognition device according to the arbitrary claim of claims 1 to 3, it is characterized in that described base (2) comprises the substrate (21) be connected with truck scale body (4), described substrate (21) is bearing in polylith back up pad (22); Each described back up pad interval is arranged.

5. vehicle number of axle recognition device according to claim 4, is characterized in that described sensor (1) is mutually concordant with the height of truck scale body (4).