CN214309058U

CN214309058U - Vehicle-mounted dynamic weighing module

Info

Publication number: CN214309058U
Application number: CN202120202706.1U
Authority: CN
Inventors: 宋朋飞; 董社森; 杨华; 尚恩惠; 霍鹏鹏
Original assignee: Zhengzhou Senpeng Electronic Technology Co Ltd
Current assignee: Zhengzhou Senpeng Electronic Technology Co Ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-09-28
Anticipated expiration: 2031-01-26

Abstract

The utility model relates to a vehicle dynamic weighing technical field, concretely relates to on-vehicle dynamic weighing module, including weighing main part, sharp optical axis and strain sensor, set up the arrangement hole in the weighing main part, the downthehole linear bearing that passes through of arrangement of weighing main part sets up sharp optical axis, the lower extreme setting of weighing main part strain sensor, strain sensor are located the below of sharp optical axis, and strain sensor's connecting wire passes the weighing main part. The utility model discloses can eliminate the stress interference to the strain sensor in the vehicle developments, the received positive pressure value of purification strain sensor to obtain comparatively accurate numerical value of weighing.

Description

Vehicle-mounted dynamic weighing module

Technical Field

The utility model relates to a vehicle dynamic weighing technical field, concretely relates to on-vehicle dynamic weighing module.

Background

There are a variety of strain gauge sensors on the market today. However, when the traditional strain sensor is applied to dynamic weighing of vehicles, the purpose of dynamic accurate weighing cannot be met. The core difficult problem is that the traditional strain sensor needs to guarantee the strength of the vehicle and vehicle components, needs to be connected firmly during installation, and needs to guarantee the supporting strength. However, the hard connection is disadvantageous to weighing, the strain gauge sensor is a weighing component which depends on micro strain, the residual stress in the dynamic running of the vehicle can be directly transmitted to the strain gauge sensor by the hard connection, and weighing data are difficult to be accurate.

Disclosure of Invention

The utility model discloses a solve on-vehicle dynamic weighing equipment and make the unsafe problem of weighing data because the installation is connected firmly, provide an on-vehicle dynamic weighing module, can eliminate in the vehicle developments stress interference to strain transducer, purification strain transducer received normal pressure value to obtain comparatively accurate numerical value of weighing.

In order to realize the purpose, the technical scheme of the utility model is that:

the utility model provides a vehicle-mounted dynamic weighing module, includes weighing main part, sharp optical axis and strain sensor, set up the arrangement hole in the weighing main part, the downthehole linear bearing that passes through of arrangement of weighing main part sets up sharp optical axis, the lower extreme of weighing main part strain sensor, strain sensor are located the below of sharp optical axis, and strain sensor's connecting wire passes the weighing main part.

Further, the placing hole of the weighing main body is internally provided with a boss, the upper end of the boss is contacted with the linear bearing, the lower end of the boss of the linear optical axis is provided with a limiting block, and the limiting block protrudes out of the linear optical axis.

Furthermore, the limiting block is a limiting screw, and the distance between the upper end of the limiting screw and the lower end of the boss is 1-2 mm.

Furthermore, the lower extreme of the main part of weighing can be dismantled and be connected with the shrouding, strain sensor fixes on the shrouding.

Furthermore, a through hole is formed in the lower end of the weighing main body, a rubber ring pad is arranged in the through hole, and a connecting wire of the strain sensor penetrates through the rubber ring pad.

Furthermore, limiting jackscrews are arranged on two sides of the weighing main body in a penetrating mode, and the end portions of the limiting jackscrews are in contact with the linear bearings.

Further, the upper part of the straight line optical axis is protruded out of the weighing main body and is provided with a connecting hole.

Through the technical scheme, the beneficial effects of the utility model are that:

the utility model discloses a main part of weighing, straight line optical axis and strain gauge, strain gauge is located the lower part of straight line optical axis, the main part of weighing passes through straight line bearing installation straight line optical axis, make straight line optical axis and straight line bearing's multirow roll steel ball contact, realize the contact of lower frictional force, when satisfying straight line optical axis up-and-down motion, also can reach the support and spacing to straight line optical axis, it is important, through the frictional contact between steel ball and the straight line optical axis, can eliminate the interference stress except that the vertical direction, guarantee that the weight of weighing passes through straight line optical axis malleation completely to strain gauge on, become directly proportional voltage value through strain gauge such as the positive pressure deflection under the different load weights, can obtain the size of load through certain calculation, thereby reach the purpose of dynamic weighing.

Drawings

FIG. 1 is a schematic structural diagram of a vehicle-mounted dynamic weighing module of the present invention;

FIG. 2 is one of schematic cross-sectional structural diagrams of a vehicle dynamic weighing module according to the present invention;

fig. 3 is a second schematic cross-sectional view of the vehicle dynamic weighing module of the present invention.

The reference numbers in the drawings are as follows: 1 is the main part of weighing, and 101 is the boss, and 2 are sharp optical axis, and 3 are the shrouding, and 4 are linear bearing, and 5 are the stopper, and 6 are strain transducer, and 7 are spacing jackscrew, and 8 are the rubber ring pad.

Detailed Description

The invention will be further explained with reference to the drawings and the detailed description below:

in the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "lateral", "vertical", and the like, indicate orientations or positional relationships based on the orientation or positional relationships shown in fig. 1, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

As shown in fig. 1-3, this embodiment provides a vehicle-mounted dynamic weighing module, including weighing main part 1, sharp optical axis 2 and strain sensor 6, the arrangement hole has been seted up on weighing main part 1, the arrangement hole is circular, and the arrangement hole of weighing main part 1 is downthehole through linear bearing 4 setting sharp optical axis 2, the lower extreme setting of weighing main part 1 strain sensor 6, strain sensor 6 are located the below of sharp optical axis 2, and strain sensor 6's connecting wire passes weighing main part 1, and strain sensor 6 in this embodiment adopts miniature strain sensor to be used for weighing.

This weighing module is through setting up linear bearing 4 between main part 1 and the straight line optical axis 2 weighing, make linear bearing 4's multirow rolling steel ball contact with straight line optical axis 4, realize the contact and the operation of the lower frictional force of straight line optical axis 4, in order to reach the interference force of rejecting the non-vertical direction, guarantee that the weight that bears passes through straight line optical axis 4 malleation completely to strain sensor 6 on, this miniature strain sensor can become directly proportional voltage value to positive pressure deflection etc. under the different load weight, can obtain the size of load through certain calculation.

Further, a boss 101 is arranged in the placing hole of the weighing main body 1, the boss 101 is annular, and the upper end of the boss 101 is in contact with the linear bearing 4 and is used for supporting the linear bearing 4; linear optical axis 2 is provided with stopper 5 at the lower extreme of boss 101, stopper 5 salient in linear optical axis 2, stopper 5 are used for restricting the ascending motion of linear optical axis 2, reduce the range of 2 up-and-down motion of linear optical axis to the reduction is in vehicle dynamic behavior, and linear optical axis 2 is to strain transducer 6's impact, thereby reaches the mesh of not damaging strain transducer 6.

As a specific implementation mode, stopper 5 is stop screw, and stop screw's upper end is 1 ~ 2mm apart from the distance of the lower extreme of boss 101, can guarantee the micro-motion distance of 1 ~ 2mm of sharp optical axis, guarantees not to damage miniature strain sensor under the vehicle running state.

Foretell, the lower extreme of main part 1 of weighing can be dismantled and be connected with shrouding 3, strain sensor 6 is fixed on shrouding 3, and module main part 1, shrouding 3 are the supporting component of this module, when reaching support, the effect of installing other parts, also are convenient for assemble this module, reduce the degree of difficulty of manufacturing.

Further, the lower end of the weighing main body 1 is provided with a through hole, a rubber ring pad 8 is arranged in the through hole, and a connecting wire of the strain sensor 6 penetrates through the rubber ring pad 8. The connecting line of the strain sensor 8 is protected by the rubber ring pad 8, so that the abrasion of the strain sensor caused by the vibration of the weighing main body 1 in the running state of the vehicle is reduced.

Foretell, spacing jackscrew 7 is all worn to be equipped with by the both sides of weighing main part 1, the tip of spacing jackscrew 7 contacts with linear bearing 4, reaches spacing, fixed linear bearing 2's effect.

In the above, the upper part of the linear optical axis 2 protrudes out of the weighing main body 1 and is provided with a connecting hole.

The vehicle-mounted dynamic weighing module eliminates stress interference on the strain sensor 6 in vehicle dynamic through a kinematic pair with low friction of a rolling steel ball of the linear bearing 4, purifies a positive pressure value received by the strain sensor, and can obtain a more accurate weighing value.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims

1. The utility model provides a vehicle-mounted dynamic weighing module, its characterized in that, including weighing main part (1), sharp optical axis (2) and strain sensor (6), set up the arrangement hole on weighing main part (1), set up through linear bearing (4) in the arrangement hole of weighing main part (1) sharp optical axis (2), the lower extreme setting of weighing main part (1) strain sensor (6), strain sensor (6) are located the below of sharp optical axis (2), and the connecting wire of strain sensor (6) passes weighing main part (1).

2. The vehicle-mounted dynamic weighing module according to claim 1, characterized in that a boss (101) is arranged in the mounting hole of the weighing main body (1), the upper end of the boss (101) is in contact with the linear bearing (4), the linear optical axis (2) is provided with a limit block (5) at the lower end of the boss (101), and the limit block (5) protrudes out of the linear optical axis (2).

3. The vehicle-mounted dynamic weighing module according to claim 2, characterized in that the limiting block (5) is a limiting screw, and the distance from the upper end of the limiting screw to the lower end of the boss (101) is 1-2 mm.

4. A vehicle dynamic weighing module according to any one of claims 2 or 3, wherein a sealing plate (3) is detachably connected to the lower end of the weighing body (1), and the strain sensor (6) is fixed to the sealing plate (3).

5. The vehicle-mounted dynamic weighing module according to claim 1, characterized in that the lower end of the weighing main body (1) is provided with a through hole, a rubber ring pad (8) is arranged in the through hole, and a connecting wire of the strain sensor (6) passes through the rubber ring pad (8).

6. The vehicle-mounted dynamic weighing module according to claim 1, characterized in that limiting jackscrews (7) are arranged on two sides of the weighing body (1) in a penetrating manner, and the ends of the limiting jackscrews (7) are in contact with the linear bearings (4).

7. A vehicle dynamic weighing module according to claim 1, characterized in that the upper part of the rectilinear optical axis (2) protruding the weighing body (1) is provided with a connection hole.