SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a take overload protection's sensor for on-vehicle weighing system.
The utility model discloses a further purpose provides a high on-vehicle weighing system of stability.
The utility model provides a sensor for on-vehicle weighing system, the sensor includes:
the weighing device comprises a body, a weighing device and a weighing system, wherein the body comprises a working area and a non-working area, the working area is used for being connected with a piece to be weighed, the non-working area is used for being connected with a bearing part, the working area is configured to deform after being subjected to external acting force, and a first end face is arranged on one side, close to the non-working area, of the working area;
overload protection structure, with the non-work area is connected, overload protection structure constructs to be in after the deformation degree of work area reaches predetermined degree with first terminal surface butt, so that be used in the external acting force of work area is through overload protection structure transmits to the non-work area.
Optionally, a first mounting hole is formed in the non-working area;
the overload protection structure is installed in the first installation hole.
Optionally, the overload protection structure is an overload pin, and the overload pin is configured as a cylindrical structure.
Optionally, the sensor further comprises: a strain gauge coupled to the working area, the strain gauge configured to measure a magnitude of the external force after the body is subjected to the external force.
Optionally, a second mounting hole is further formed in the working area, and the axial direction of the second mounting hole is perpendicular to the axial direction of the first mounting hole;
the strain gauge is mounted in the second mounting hole.
In particular, the present invention also provides a vehicle-mounted weighing system comprising:
the cargo box longitudinal beam is arranged at the bottom of a cargo box of the vehicle, and the length direction of the cargo box longitudinal beam is arranged along the longitudinal direction of the vehicle;
a frame rail arranged parallel to the cargo box rail;
a plurality of the sensors, each of the sensors disposed between the cargo box rail and the frame rail.
Optionally, the vehicle-mounted weighing system further comprises:
a plurality of brackets, each of the sensors connected to the cargo box rail and the frame rail through the brackets.
Optionally, the vehicle-mounted weighing system further comprises:
and the display is connected with the vehicle through a wire harness.
Optionally, the sensor is connected to the bracket by a bolt.
Optionally, the bracket is connected to the cargo box rail and the frame rail by bolts.
The utility model provides a sensor includes body and overload protection structure, and the work area sets up to taking place to warp after receiving exogenic action, and the work area warp the back towards the direction extrusion of non-work area, and reach first terminal surface and overload protection structure butt after presetting the degree at the deformation degree, then transmit external force to on the non-work area through overload protection structure, and then transmit to on the bearing member that non-work area is connected, thereby make the sensor have the overload protection function.
Further, the vehicle-mounted weighing system comprises a cargo box longitudinal beam, a frame longitudinal beam and a plurality of the sensors. After the vehicle receives a vertical load, the load is firstly acted on the cargo box longitudinal beam and then is transmitted to a sensor connected with the cargo box longitudinal beam, and the magnitude of the load is measured through the sensor. After this load surpassed the default, the deformation that the sensor took place makes the first terminal surface and the overload protection structure butt of sensor body, then transmits this load to the solebar of being connected with the sensor through the overload protection structure on to make the load of effect on the sensor obtain the release, and then play the effect of protection sensor, avoid the sensor damage that the long-term overload arouses among the vehicle operation process, thereby promoted on-vehicle weighing system's stability.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Detailed Description
Fig. 1 is a schematic structural diagram of a sensor for a vehicle-mounted weighing system according to an embodiment of the present invention. Fig. 2 is a schematic cross-sectional structure diagram of a sensor for a vehicle-mounted weighing system according to an embodiment of the present invention. As shown in fig. 1, the present invention provides a sensor for a vehicle weighing system that generally includes a body and an overload protection structure 12. The body comprises a working area 11 for connection with a member to be weighed and a non-working area 17 for connection with a load-bearing member, the working area 11 being configured to deform upon application of an external force, the working area 11 being provided with a first end surface 16 on a side thereof adjacent the non-working area 17. The overload protection structure 12 is connected to the non-working area 17, and the overload protection structure 12 is configured to abut against the first end surface 16 after the degree of deformation of the working area 11 reaches a predetermined degree, so that an external force acting on the working area 11 is transmitted to the non-working area 17 through the overload protection structure 12. By adding the overload protection structure 12, the structure of the sensor 10 is optimized, and overload protection of the sensor 10 during loading or driving of the vehicle is realized.
The sensor 10 that provides of this embodiment includes body and overload protection structure 12, work area 11 sets up to taking place to warp after receiving the exogenic action, work area 11 warp the back and extrudees towards the direction of non-work area 17, and reach first terminal surface 16 and overload protection structure 12 butt after presetting the degree at the deformation degree, then transmit external force to on the non-work area 17 through overload protection structure 12, and then transmit to on the bearing member of being connected with non-work area 11, thereby make sensor 10 have the overload protection function. Further, the sensor 10 is not easily damaged, which may reduce the use and maintenance costs for the user.
As shown in fig. 2, a first mounting hole 14 is formed in the non-working area 17, and the overload protection structure 12 is mounted in the first mounting hole 14. In other embodiments, the overload protection structure 12 can be mounted on the outer wall of the body or at a specific location in the middle.
Fig. 3 is a schematic structural diagram of a sensor 10 for an on-board weighing system according to another embodiment of the present invention. As shown in fig. 3, in one embodiment, the overload protection structure 12 is an overload pin configured as a cylindrical structure. The overload pin is provided with a second end surface 122 which is allowed to contact with the first end surface 16, when the deformation degree of the working area 11 does not reach a preset degree, the first end surface 16 does not collide with the second end surface 122, when the working area 11 is not deformed at all, the distance between the non-working area and the first end surface 16 is L as shown in fig. 2, when the deformation degree reaches the preset degree, the first end surface 16 collides with the second end surface 122, so that an external acting force is transmitted to the non-working area 17 through the overload pin 121, and further transmitted to a load-bearing component connected with the non-working area through the non-working area 17, thereby realizing overload protection of the sensor 10, for example, a load (external acting force) which is overloaded or subjected to instant impact on a vehicle can be transmitted to a vehicle frame through the sensor 10, thereby realizing protection of the sensor.
In other embodiments, the overload protection structure 12 can be in other shapes or combinations of shapes, such as square.
As shown in fig. 1, it is preferable that the body is constructed in a rectangular parallelepiped structure. In other embodiments, the body may have other shapes, such as an i-shape, a cube, a cylinder, a cone, etc.
In some specific embodiments, the sensor further comprises a strain gauge (not shown) connected to the working area 11, the strain gauge (not shown) being configured to measure the magnitude of the external force after the body is subjected to the external force. As shown in fig. 1, referring to fig. 2, in one embodiment, the working area 11 is opened with a second mounting hole 13, an axial direction of the second mounting hole 13 is perpendicular to an axial direction of the first mounting hole 14, and the strain gauge (not shown) is mounted in the second mounting hole 13. Preferably, the number of the second mounting holes 13 is two. After the body receives the external acting force, the body is deformed to different degrees, the deformation enables the working area 11 to be extruded to the non-working area 17, further the second mounting hole 13 is deformed, and the strain gauge (not shown) detects the magnitude of the external acting force through the deformation.
In a preferred embodiment, the sensor 10 is made of alloy steel material, so that the sensor 10 has high strength and reliability.
The overload protection structure 12 can be secured to the body by threading or welding or otherwise.
In some embodiments, a third plurality of mounting holes 15 are provided in the body for connecting the sensor 10 to an external component.
Fig. 4 is a schematic structural diagram of a vehicle-mounted weighing system according to an embodiment of the present invention. Fig. 5 is a partial schematic structural diagram of a vehicle-mounted weighing system according to an embodiment of the present invention. As shown in fig. 4, the present invention also provides a vehicle weighing system, comprising a container rail 22, a frame rail 21 and a plurality of the above-mentioned sensors 10. The cargo box side rails 22 are provided at the bottom of the cargo box of the vehicle, and the length direction of the cargo box side rails 22 is arranged in the longitudinal direction of the vehicle. The frame rails 21 are arranged parallel to the cargo box rails 22. Each sensor 10 is disposed between the box rail 22 and the frame rail 21.
The present embodiment provides an in-vehicle weighing system comprising a cargo box rail 22, a frame rail 21, and a plurality of the above-described sensors 10. After the vehicle receives a vertical load, the load is firstly applied to the cargo box longitudinal beam 22, and then is transmitted to the sensor 10 connected with the cargo box longitudinal beam 22, and the magnitude of the load is measured through the sensor 10. After the load exceeds the preset value, the deformation of the sensor 10 enables the first end face 16 of the sensor 10 body to abut against the overload protection structure 12, and then the load is transmitted to the frame longitudinal beam 21 connected with the sensor 10 through the overload protection structure 12, so that the load acting on the sensor 10 is released, the sensor 10 is protected, the sensor 10 is prevented from being damaged due to long-term overload in the vehicle running process, and the stability of the vehicle-mounted weighing system is improved.
As shown in FIG. 5, in a preferred embodiment, the on-board weighing system also includes a plurality of brackets 23. Each sensor 10 is connected to the bed rail 22 and the frame rail 21 by brackets 23. The bracket 23 is a connecting member between the sensor 10 and the box side member 22 and the frame side member 21, and is a bridge for transmitting load between the sensor 10 and the box side member 22 and between the sensor 10 and the frame side member 21. The load of the vehicle cargo box is transmitted through the cargo box longitudinal beam 22, the bracket 23, the sensor 10, the bracket 23 and the frame longitudinal beam 21 in sequence, no other force transmission parts are arranged in the middle, the weighing is only carried out through the sensor 10, and the weighing is not carried out through relevant parts such as a detection axle.
In some embodiments, the bracket 23 is comprised of two sides that are substantially perpendicular to each other and are connected to the side and lower flanks, respectively, of the bed rail 22 or to the side and upper flanks of the bed rail 21.
Fig. 6 is a schematic structural diagram of an on-vehicle weighing system according to another embodiment of the present invention. As shown in FIG. 6, in some embodiments, the in-vehicle weighing system further includes a display 24, the display 24 being connected to the vehicle via a wiring harness. The display 24 is used to display the load value of the vehicle measured by the sensor 10. The display 24 may be integrated with the dashboard of the vehicle or may be a separate display 24.
Preferably, in one embodiment, the vehicle weighing system further comprises a controller connected to both the sensor 10 and the display 24, preferably via a wiring harness disposed on the wiring harness beam 24. Preferably the controller is mounted on the controller beam 26. The controller calculates the load value measured by each sensor 10 through an internal control program, calculates the total weight of the cargo box and the load of the vehicle, then removes the weight of the cargo box to obtain the actual load value of the vehicle, and finally sends the actual load value to the display 24.
In a preferred embodiment, the controller may also number a plurality of sensors 10 to identify the abnormal sensor 10, and then may send the number of the abnormal sensor 10 and the load value detected by the abnormal sensor 10 to the display 24 for displaying, so as to facilitate detection and maintenance by a user.
In some embodiments, the sensor 10 is connected to the bracket 23 by a bolt.
In some embodiments, the brackets 23 are bolted to the bed rail 22 and frame rail 21.
Of course, in other embodiments, the bracket 23 may be integrally formed with or welded or snapped onto the sensor 10, and similarly, in other embodiments, the bracket 23 may be integrally formed with or welded or snapped onto the bed rail 22 and the frame rail 21.
It should be noted that the number of the sensors 10 may be determined according to different vehicle models and arrangement spaces. The specific location of the sensor 10 between the frame rail 21 and the cargo box rail 22 may also be arranged according to the actual needs of the vehicle.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.