Load bearing structure of weighing sensor

Abstract

The utility model provides a weighing sensor load bearing structure, which comprises a sensor body, the sensor body is provided with a middle hole and two side holes, the middle hole is internally provided with an upper bracket, and the two side holes are internally provided with lower brackets; the device comprises a sensor fixed by a transverse shaft, a lower bracket fixed by two points and a seesaw type upper bracket fixed by a single point, the seesaw type structure of the upper bracket is utilized to automatically compensate the horizontal deviation of a bearing structure, and automatic compensation is always carried out within a certain range, that is, under the normal working condition, the weighing platform is allowed to have + / -5-degree deformation, and the weighing precision is improved. The weighing precision is not influenced; more preferably, due to the clearance fit between the sensor and the pin shaft, most structural installation errors are automatically compensated on the premise that safety is not affected, and the unevenness of the platform in the installation process cannot generate internal stress to affect precision.

Description

Technical Field

[0001] This application relates to the field of weighing sensor technology, specifically to a load-bearing structure for a weighing sensor. Background Technology

[0002] A load cell is a device that converts a mass signal into a measurable electrical signal output. It is typically used to measure the weight of an object and convert this weight information into an electrical signal, such as voltage or current, so that it can be read and displayed by electronic scales or other measuring devices.

[0003] When existing weighing equipment is used for vehicle weighing, the common practice is to fix both ends of the bridge-type sensor to the lower crossbeam of the vehicle frame, and the middle stress-bearing section of the sensor to the upper crossbeam of the vehicle body. Due to the slight deformation of the vehicle body beam under stress, the load on the load sensor is not at the midpoint and is unevenly loaded, resulting in weighing errors. At the same time, the deformation of the vehicle body varies under different loads, causing the sensor error to be random and unable to return to zero after unloading.

[0004] This application aims to provide a load-bearing structure for a weighing sensor, applicable to truck on-board weighing and other platform weighing.

[0005] Searching using keywords such as "weighing sensor", "load", and "load-bearing capacity" yielded no relevant technical solutions.

[0006] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0007] This application provides a load-bearing structure for a weighing sensor, including a sensor body. The sensor body has a central hole and two side holes. An upper bracket is installed in the central hole, and a lower bracket is installed in the two side holes.

[0008] As a preferred embodiment, the upper bracket includes an upper horizontal plate, with upper mounting ears provided in the middle of both sides of the upper horizontal plate. The upper mounting ears are provided with upper mounting holes that mate with the central hole, and upper pins that mate with the central hole and the upper mounting holes are provided in the central hole and the upper mounting holes.

[0009] As a preferred embodiment, the upper horizontal plate is provided with an upper fixing hole.

[0010] As a preferred embodiment, the upper horizontal plate and the upper mounting ear are integrally formed.

[0011] As a preferred embodiment, the upper pin is clearance-fitted with the intermediate hole and the upper mounting hole.

[0012] As a preferred embodiment, the lower bracket includes a lower horizontal plate, and both sides of the lower horizontal plate are provided with a lower mounting ear 1 and a lower mounting ear 2. The lower mounting ear 1 and the lower mounting ear 2 are provided with lower mounting holes that mate with the side holes, and lower pins that mate with them are provided in the side holes and the lower mounting holes.

[0013] As a preferred embodiment, the lower horizontal plate is provided with a lower fixing hole.

[0014] As a preferred embodiment, the lower horizontal plate, lower mounting ear one, and lower mounting ear two are integrally formed.

[0015] As a preferred embodiment, the lower pin is clearance-fitted with the side hole and the lower mounting hole.

[0016] This application includes a sensor fixed to the horizontal axis, a lower support fixed at two points, and a seesaw-type upper support fixed at a single point. The seesaw structure of the upper support automatically compensates for the horizontal deviation of the load-bearing structure. It automatically compensates within a certain range, that is, under normal working conditions, the weighing platform is allowed to have ±5° deformation without affecting the weighing accuracy. More preferably, the clearance fit between the sensor and the pin automatically compensates for most of the structural installation errors without affecting safety, so that the unevenness of the platform during installation will not generate internal stress that affects the accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this application;

[0018] Figure 2 This is an exploded view of this application;

[0019] 1. Sensor body; 2. Center hole; 3. Side hole; 4. Upper bracket; 5. Lower bracket; 6. Upper horizontal plate; 7. Upper fixing hole; 8. Upper mounting ear; 9. Upper pin; 10. Lower horizontal plate; 11. Lower fixing hole; 12. Lower mounting ear one; 13. Lower mounting ear two; 14. Lower pin. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 Appendix Figure 2 The specific embodiments of this utility model will be described in detail below. It should be noted that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0021] Example 1:

[0022] This embodiment provides a load-bearing structure for a weighing sensor, including a sensor body 1. The sensor body 1 uses an improved bridge-type double shear beam sensor. The sensor body 1 has a central hole 2 and two side holes 3. The two side holes 3 are located on both sides of the central hole 2. Preferably, the two side holes 3 are symmetrically arranged about the center of the central hole 2. The sensor body 1 is fixed by the side holes 3 on both sides and bears force in the central hole 2. An upper bracket 4 is installed in the central hole 2. The sensor body 1 and the upper bracket 4 are connected by a central hinge and have a clearance fit. The upper bracket 4 can move in a seesaw manner. A lower bracket 5 is installed in the two side holes 3. The sensor body 1 and the lower bracket 5 have a clearance fit. While fixing the sensor body 1, a certain amount of clearance is maintained to allow for deformation space of the sensor body 1. The front and rear safety limits of the load-bearing structure of the weighing sensor are ensured by the upper pin 9 and the lower pin 14. The left and right safety limits of the load-bearing structure of the weighing sensor are ensured by the upper mounting ear 8, the lower mounting ear 12, and the lower mounting ear 2 13.

[0023] Example 2:

[0024] This embodiment describes the specific structure of the upper support 4 and the lower support 5, specifically:

[0025] The upper support 4 includes an upper horizontal plate 6, which is preferably rectangular. The upper horizontal plate 6 is provided with an upper fixing hole 7 for connecting and fixing to the weighing platform. Upper mounting ears 8 are provided in the middle of both sides of the upper horizontal plate 6. Preferably, the upper horizontal plate 6 and the upper mounting ears 8 are integrally formed. The upper mounting ears 8 are provided with upper mounting holes that mate with the middle hole 2. Upper pins 9 are provided in the middle hole 2 and the upper mounting holes to mate with them. Preferably, the upper pins 9 are clearance-fitted with the middle hole 2 and the upper mounting holes.

[0026] The lower support 5 includes a lower horizontal plate 10, which is preferably rectangular. The lower horizontal plate 10 is provided with a lower fixing hole 11 for connecting and fixing to the weighing platform. Both sides of the lower horizontal plate 10 are provided with a lower mounting ear 12 and a lower mounting ear 2 13. Preferably, the lower horizontal plate 10, the lower mounting ear 12, and the lower mounting ear 2 13 are integrally formed. The lower mounting ear 12 and the lower mounting ear 2 13 are provided with lower mounting holes that mate with the side holes 3. The side holes 3 and the lower mounting holes are provided with lower pins 14 that mate with them. Preferably, the lower pins 14 are clearance-fitted with the side holes 3 and the lower mounting holes.

[0027] In summary, by adopting the above technical solution, this application includes a sensor body fixed to the horizontal axis, a lower support fixed at two points, and a seesaw-type upper support fixed at a single point. The seesaw structure of the upper support automatically compensates for the horizontal deviation of the load-bearing structure, consistently providing automatic compensation within a certain range. That is, under normal working conditions, the weighing platform is allowed to deform by ±5° without affecting weighing accuracy. More preferably, the clearance fit between the sensor body and the upper pin, and between the sensor body and the lower pin, automatically compensates for most structural installation errors without compromising safety, ensuring that unevenness during installation does not generate internal stress that affects accuracy.

[0028] This application utilizes a clearance fit and a seesaw structure to ensure accurate and stable weighing by the sensor, and is mainly used in truck on-board weighing and other platform weighing applications.

[0029] The devices and connections not specifically described above are all existing technologies, and will not be described in detail here.

[0030] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.

[0031] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0032] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the various possible combinations in this application will not be described separately.

[0033] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, and such combinations should also be regarded as the content disclosed in this application.

Claims

1. A load-bearing structure for a weighing sensor, comprising a sensor body (1), characterized in that, The sensor body (1) is provided with a central hole (2) and two side holes (3). An upper bracket (4) is installed in the central hole (2), and a lower bracket (5) is installed in the two side holes (3).

2. The load-bearing structure for a weighing sensor according to claim 1, characterized in that, The upper bracket (4) includes an upper horizontal plate (6), and upper mounting ears (8) are provided in the middle of both sides of the upper horizontal plate (6). The upper mounting ears (8) are provided with upper mounting holes that cooperate with the middle hole (2). The middle hole (2) and the upper mounting holes are provided with upper pins (9) that cooperate with them.

3. The load-bearing structure for a weighing sensor according to claim 2, characterized in that, The upper horizontal plate (6) is provided with an upper fixing hole (7).

4. The load-bearing structure for a weighing sensor according to claim 2, characterized in that, The upper horizontal plate (6) and the upper mounting ear (8) are integrally formed.

5. A load-bearing structure for a weighing sensor according to claim 2, characterized in that, The upper pin (9) is clearance-fitted with the middle hole (2) and the upper mounting hole.

6. The load-bearing structure for a weighing sensor according to claim 1, characterized in that, The lower bracket (5) includes a lower horizontal plate (10). Both sides of the lower horizontal plate (10) are provided with a lower mounting ear 1 (12) and a lower mounting ear 2 (13). The lower mounting ear 1 (12) and the lower mounting ear 2 (13) are provided with lower mounting holes that cooperate with the side holes (3). The side holes (3) and the lower mounting holes are provided with lower pins (14) that cooperate with them.

7. A load-bearing structure for a weighing sensor according to claim 6, characterized in that, The lower horizontal plate (10) is provided with a lower fixing hole (11).

8. A load-bearing structure for a weighing sensor according to claim 6, characterized in that, The lower horizontal plate (10), lower mounting ear one (12), and lower mounting ear two (13) are integrally formed.

9. A load-bearing structure for a weighing sensor according to claim 6, characterized in that, The lower pin (14) is clearance-fitted with the side hole (3) and the lower mounting hole.

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