Vehicle frame stress field distributed vehicle weighing-free metering equipment

Abstract

The utility model introduces a frame stress field distributed vehicle weighing-free metering device, which comprises a plurality of metering devices, each metering device is arranged at each node of a girder and a carriage according to the distribution rule of a frame stress field, and each metering device is electrically connected with a vehicle-mounted display terminal; the metering device comprises a lower supporting seat, a weighing sensor, a cushion block, an upper supporting seat and a pressing column. According to the utility model, the structure is simple, transport vehicles can be dynamically metered and weighed without parking and queuing up, the whole process from data acquisition and transmission to weighing and metering data output is closed, the whole links of loading, transporting and unloading are covered, and local data deviation is avoided; the system does not need to occupy a fixed site, meets the dynamic operation requirements of mines, and effectively improves the weighing and metering efficiency of mine transport vehicles.

Description

Technical Field

[0001] This utility model relates to the field of open-pit mine transportation measurement technology, and in particular to a vehicle weighing device with distributed stress field on the chassis that eliminates the need for weighing. Background Technology

[0002] Traditional open-pit mine transport vehicles are large dump trucks. After loading, the weighing of materials mainly relies on electronic truck scales, i.e., weighbridges. However, these have significant drawbacks in practical applications: 1. High efficiency: Vehicles need to stop frequently, making dynamic weighing impossible and requiring queuing to board the scale. A single weighing takes 60-120 seconds, and during peak periods, queuing time can reach 15-20 minutes, severely restricting transport efficiency. 2. High overall cost: The cost of a single electronic truck scale is high, and it requires regular maintenance and calibration, occupying fixed space and making it difficult to adapt to the dynamic operation requirements of open-pit mines. 3. Poor environmental adaptability: Weighbridges need to be fixedly installed on flat ground, while open-pit mine transport roads often have slopes and bumpy sections. The dynamic load of vehicles cannot be accurately captured by static scales, leading to accumulated errors.

[0003] In recent years, although weighing-free measurement technology has gradually emerged, the following technical bottlenecks still exist: 1. Insufficient accuracy: Existing sensors rely on local strain data, and the dynamic error often exceeds 5%, which cannot meet the accuracy requirements of ±1.0-5.0% in the mining industry; 2. Single data model: Most devices can only collect short-term or local road section data, ignoring interference factors such as slope and bumps in the entire transportation process, resulting in large fluctuations in calculation results; 3. Short equipment lifespan: Sensors and vulnerable parts are prone to aging in the high-vibration and dusty environment of open-pit mines, and the design life is generally less than 2 years, resulting in high maintenance costs; 4. Poor vehicle compatibility: Existing installation schemes require the frame structure support of specific dump trucks. If the distance between the main beam and the body of the transport vehicle is insufficient, it cannot be adapted, limiting the universality of the technology. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a vehicle weighing device with distributed frame stress field, which allows transport vehicles to be dynamically weighed without stopping or queuing for weighing, thus effectively improving the weighing efficiency of transport vehicles.

[0005] The technical solution adopted in this utility model is:

[0006] A vehicle frame stress field distributed weighing device for weighing without weighing includes several weighing devices. Each weighing device is installed at various nodes of the main beam and the car body according to the stress field distribution law of the frame. Each weighing device is electrically connected to an on-board display terminal. The weighing device includes a lower support, a weighing sensor, a pad, an upper support, and a pressure column.

[0007] The lower support is set on the side of the frame beam, the load cell is set on the lower support, and the pad is set on the middle of the load cell. The pad is a cuboid structure with a width consistent with the width of the load cell, and an arc-shaped groove is provided in the middle of the pad.

[0008] The upper support seat is set on the lower side beam of the car body floor and corresponds to the position of the lower support seat on the frame beam. The pressure column is set on the upper support seat. The diameter of the pressure column is larger than the radius of the arc groove, so that when the pressure column is located in the arc groove in the middle of the pad, it protrudes from the pad.

[0009] Specifically, the lower support is an L-shaped angle steel structure with reinforcing ribs between the two sides; the lower support is welded or fixed to the vehicle beam by bolts.

[0010] Specifically, the upper support is a plate-shaped structure or a U-shaped support structure that matches the bottom of the carriage.

[0011] Specifically, the weighing sensors of each group of measuring devices are electrically connected to the vehicle-mounted display terminal, displaying the weighing results on the screen, and the data is uploaded to the cloud server data analysis platform via the network through the vehicle-mounted display terminal.

[0012] Due to the adoption of the technical solution described above, this utility model has the following advantages:

[0013] This invention has a simple structure, allowing transport vehicles to be dynamically weighed without stopping or queuing for weighing. It features a closed loop from data collection and transmission to output of weighing data, covering the entire process of loading, transportation, and unloading, thus avoiding local data deviations. It does not require a fixed site, meets the dynamic operation needs of mines, and effectively improves the weighing efficiency of mine transport vehicles. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0015] Figure 2 This is a front view schematic diagram of this utility model.

[0016] In the diagram: 1-lower support, 11-reinforcing rib, 2-weighing sensor, 3-pad, 31-arc groove, 4-upper support, 5-pressure column. Detailed Implementation

[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments. However, this explanation should not be construed as limiting the scope of protection of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0018] Combined with appendix Figure 1-2The vehicle frame stress field distributed weighing device shown includes six weighing devices. The six weighing devices are installed in pairs on both sides of the front, middle and rear positions of the main beam and the bottom beam of the carriage according to the stress field distribution law of the frame. Each weighing device is electrically connected to the vehicle display terminal. The weighing device includes a lower support 1, a weighing sensor 2, a pad 3, an upper support 4 and a pressure column 5.

[0019] The lower support 1 is an L-shaped alloy angle steel with dimensions of 410mm×120mm×15mm, and reinforcing ribs 11 are provided between the two sides. The lower support 1 is welded or fixed to the side of the frame beam by bolts. The load cell 2 is set on the lower support 1, and the load cell has dimensions of 220mm×84mm×40mm. The pad 3 is set on the middle of the load cell 2. The pad 3 has a cuboid structure with a width consistent with the width of the load cell 2. The pad has dimensions of 174mm×84mm×45mm. The middle of the pad 3 has an arc-shaped groove 31, which is a semi-circle with a radius of 27.5mm.

[0020] The upper support seat 4 is a plate-shaped structure that matches the bottom of the carriage, with dimensions of 400mm×80mm×15mm. The upper support seat 4 is set on the bottom beam of the carriage floor and corresponds to the position of the lower support seat 1 on the frame beam. The pressure column 5 is set on the upper support seat 4. The diameter of the pressure column 5 is larger than the radius of the arc groove 31, so that when the pressure column 5 is located in the arc groove 31 in the middle of the pad 3, it protrudes from the pad 3. The pressure column is a cylinder with a diameter of 50mm and a length of 100mm.

[0021] Each weighing sensor 2 of the measuring device is electrically connected to the vehicle-mounted display terminal, which displays the weighing results on the screen and uploads the data to the cloud server data analysis platform via the network through the vehicle-mounted display terminal.

[0022] When the weighing device of this utility model is in use, after the carriage is lowered, the bottom beam of the carriage corresponds to the frame beam, and the pressure column 5 on the upper support 4 is located in the arc-shaped groove 31 on the pad block 3. At this time, the data of the weighing sensor 2 is recorded as the empty data. When the transport vehicle is loaded with minerals, the change in the overall weight of the carriage causes the pressure of the pressure column 5 at the bottom of the carriage to change on the weighing sensor 2. The weighing data of each weighing sensor 2 is sent to the vehicle display terminal, and the data is uploaded to the server data analysis platform in real time through the vehicle terminal. The weighing device of this utility model detects the weighing data of various road conditions in real time. The data analysis platform outputs a single vehicle weighing record based on the multi-source data fusion algorithm.

[0023] The parts of this utility model not described in detail are existing technologies.

[0024] The embodiments selected herein for the purpose of disclosing the inventive objectives of this utility model are currently considered appropriate; however, it should be understood that this utility model is intended to include all variations and modifications of the embodiments that fall within the scope of this concept and utility model.

Claims

1. A vehicle frame stress field distributed weighing device that eliminates the need for weighing, characterized in that: The application relates to a vehicle stress field measuring device, which comprises a plurality of measuring devices, each of which is arranged at a node of a girder and a carriage according to a stress field distribution rule of a vehicle frame, and each of the measuring devices is electrically connected with a vehicle-mounted display terminal; the measuring device comprises a lower supporting base, a weighing sensor, a cushion block, an upper supporting base and a pressing column. The lower supporting base is arranged on the side edge of a girder of the vehicle frame, the weighing sensor is arranged on the lower supporting base, and the cushion block is arranged on the middle part of the weighing sensor; the cushion block is a cuboid structure, the width of the cushion block is consistent with the width of the weighing sensor, and an arc-shaped groove is arranged in the middle part of the cushion block. The upper supporting base is arranged on the lower side sill of the bottom plate of the carriage and corresponds to the position of the lower supporting base on the girder of the vehicle frame, and the pressing column is arranged on the upper supporting base; the diameter of the pressing column is larger than the radius of the arc-shaped groove, so that the pressing column protrudes from the cushion block when the pressing column is located in the arc-shaped groove in the middle part of the cushion block.

2. The vehicle stress field distribution type vehicle weighing-in measurement apparatus according to claim 1, characterized by: The lower supporting base is an angle steel structure, and reinforcing ribs are arranged between the two side edges; the lower supporting base is welded or fixed on the girder through bolts.

3. The vehicle stress field distribution type vehicle weighing-in measurement apparatus according to claim 1, characterized by: The upper supporting base is a plate-shaped structure or a U-shaped support structure matched with the bottom of the carriage.

4. The vehicle stress field distributed vehicle weigh-in-motion apparatus of claim 1 wherein: The weighing sensor of each measuring device is electrically connected with the vehicle-mounted display terminal, the weighing result is displayed on the screen, and the data is uploaded to a cloud server data analysis platform through the network through the vehicle-mounted display terminal.

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