An overload monitoring mechanism for coal gangue transport vehicles based on pressure sensing
By installing pressure sensors and leaf springs on coal gangue transport vehicles, an overload monitoring mechanism has been developed, enabling real-time and accurate overload detection. This solves the problems of lag and environmental interference associated with traditional monitoring methods, and improves installation convenience and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUZHOU GUOSHENG INTELLIGENT TECH CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-30
AI Technical Summary
In existing technologies, overload monitoring of coal gangue transport vehicles suffers from problems such as low efficiency, inability to monitor in real time, and susceptibility to environmental interference, leading to accelerated wear of vehicle components and increased transportation safety risks.
An overload monitoring mechanism based on pressure sensing is adopted. By installing sensor bases, leaf springs and pressure sensors on the connecting rods of the transport vehicle's bottom beam, the vehicle load is detected in real time. Preload adjustment components and overload protection blocks are used to improve detection accuracy and safety.
It achieves real-time and accurate overload detection, improves installation convenience and safety, solves the problems of lag and environmental interference in traditional monitoring methods, and reduces vehicle component wear and safety risks.
Smart Images
Figure CN224435551U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the technical field of coal gangue transport vehicle overload monitoring mechanisms, and more specifically to a coal gangue transport vehicle overload monitoring mechanism based on pressure sensing. Background Technology
[0002] In the coal mining and transportation process, coal gangue is primarily transported by coal gangue transport vehicles. However, overloading has long been a common problem. Traditional overloading monitoring methods, such as manual spot checks and simple weighbridge static inspections, suffer from low efficiency, inability to provide real-time monitoring, and susceptibility to interference from the complex environment of coal mines. Overloading not only accelerates the wear and tear on the chassis, suspension, and other components of the transport vehicles, shortening their service life, but also significantly increases the safety risks of road transportation, easily leading to accidents such as rollovers and brake failures, posing a serious threat to the production safety of coal mines. Utility Model Content
[0003] The purpose of this utility model is to provide an overload monitoring mechanism for coal gangue transport vehicles based on pressure sensing. By installing the overload monitoring mechanism and the overload monitoring mounting base to the connecting rod of the bottom beam of the transport vehicle and using it in conjunction with a steel leaf spring, the overload monitoring mechanism for coal gangue transport vehicles can achieve real-time and accurate detection, while improving the ease of installation, versatility and safety; thereby solving the technical problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A pressure-sensing-based overload monitoring system for coal gangue transport vehicles, including...
[0006] A bottom beam connecting rod for a transport vehicle, the upper end of which is connected to an overload monitoring mounting base; an overload monitoring mechanism is installed on the upper end of the overload monitoring mounting base; a leaf spring is provided on the upper end of the overload monitoring mechanism.
[0007] The overload monitoring mounting base includes a sensor base, the inner side of which is connected to the outer side of the connecting rod of the transport vehicle's bottom beam. The sensor base has symmetrical sliding cavities on both sides of its lower end, and springs are fixedly installed in each sliding cavity. The other end of the spring is connected to a limiting seat, which is located at one end of the fixed block and is slidably connected to the sliding cavity. The lower surface of the other end of the fixed block is arc-shaped.
[0008] As a further technical solution of this utility model, the upper surface of the fixed block is connected to the lower surface of the connecting rod of the bottom beam of the transport vehicle; the side with the sliding cavity in a left-right symmetrical arrangement is provided with a block limiting plate, and the block limiting plate and the limiting seat are correspondingly arranged.
[0009] As a further technical solution of this utility model, positioning locking bolts are provided at the four corners of the upper end of the sensor base, and the lower ends of the four positioning locking bolts are connected to the upper surface of the connecting rod of the bottom beam of the transport vehicle.
[0010] As a further technical solution of this utility model, the upper surface of the sensor base is symmetrically fixed with support seats at both ends, and the support seats symmetrically arranged at both ends are connected to the two ends of the pressure sensor through two fixed shafts.
[0011] As a further technical solution of this utility model, the pressure sensor is provided with a wiring port at one end, and a pre-tightening adjustment component and an overload protection block are respectively connected to the upper and lower ends of the middle part of the pressure sensor. The connection between the pre-tightening adjustment component and the overload protection block and the pressure sensor is arranged in an arc shape.
[0012] As a further technical solution of this utility model, the lower end of the pre-tightening adjustment component is symmetrically provided with connecting nuts; the upper end of the overload protection block is connected to the upper bearing plate, and the lower end of the upper bearing plate is symmetrically provided with bearing fixing bolts. The bearing fixing bolts pass through the overload protection block and the pre-tightening adjustment component and are threadedly connected to the symmetrically provided connecting nuts; the upper end of the upper bearing plate is provided with a steel leaf spring.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] During installation, the sensor base is quickly assembled using a fixing block and positioning locking bolts; the curved surface design of the fixing block adapts to the contour of the bottom beam connecting rod, and automatically retracts and fits when pressed down; the positioning locking bolts adopt a symmetrical layout at the four corners; the entire installation process is simple and quick.
[0015] In this invention, the vehicle load is transmitted through a leaf spring, an upper load-bearing plate, an overload protection block, a preload adjustment component, and a pressure sensor. Pressure changes are converted into electrical signals in real time, and the wiring port continuously outputs data, achieving millisecond-level response and completely solving the problem of traditional lag.
[0016] In this invention, the pre-tightening adjustment component adopts an arc-surface contact design, which is adapted to the deformation curve of the pressure sensor. The pre-tightening force can be finely adjusted by connecting nuts and bearing fixing bolts to improve detection accuracy. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0018] Figure 2 This utility model Figure 1 Top view.
[0019] Figure 3 This utility model Figure 2A schematic diagram of the split structure.
[0020] Figure 4 This utility model Figure 3 A bottom view.
[0021] Figure 5 This utility model Figure 4 A schematic diagram of the split structure.
[0022] Figure 6 This utility model Figure 3 The left view.
[0023] Figure 7 This utility model Figure 6 AA sectional view.
[0024] Figure 8 This utility model Figure 7 A magnified view of a portion of the image.
[0025] In the diagram: 1-Transport vehicle bottom beam connecting rod, 2-Overload monitoring mounting base, 3-Overload monitoring mechanism, 4-Leaf spring;
[0026] 21-Sensor base, 22-Sliding cavity, 23-Spring, 24-Limit seat, 25-Fixing block, 26-Block limit plate, 27-Positioning locking bolt;
[0027] 31-Support base, 32-Pressure sensor, 33-Fixed shaft, 34-Connecting port, 35-Preload adjustment component, 36-Overload protection block, 37-Connecting nut, 38-Upper bearing plate, 39-Bearing fixing bolt. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Please see Figure 1-8 In this embodiment of the utility model, an overload monitoring mechanism for a coal gangue transport vehicle based on pressure sensing includes a bottom beam connecting rod 1 of the transport vehicle, the upper end of which is connected to an overload monitoring mounting base 2; an overload monitoring mechanism 3 is installed on the upper end of the overload monitoring mounting base 2; and a steel leaf spring 4 is provided on the upper end of the overload monitoring mechanism 3.
[0030] The overload monitoring mounting base 2 includes a sensor base 21. The inner side of the sensor base 21 is connected to the outer side of the connecting rod 1 of the bottom beam of the transport vehicle. The sensor base 21 has symmetrical sliding cavities 22 on both sides of its lower end. Springs 23 are fixedly installed in each sliding cavity 22. The other end of the springs 23 is connected to a limiting seat 24. The limiting seat 24 is located at one end of the fixing block 25 and is slidably connected to the sliding cavity 22. The lower surface of the other end of the fixing block 25 is arc-shaped.
[0031] The upper surface of the fixed block 25 is connected to the lower surface of the connecting rod 1 of the bottom beam of the transport vehicle; the side with the sliding cavity 22 that is symmetrically arranged on the left and right is provided with a block limiting plate 26, and the block limiting plate 26 is correspondingly arranged with the limiting seat 24.
[0032] The sensor base 21 is provided with positioning locking bolts 27 at the four corners of the upper end, and the lower ends of the four positioning locking bolts 27 are connected to the upper surface of the connecting rod 1 of the bottom beam of the transport vehicle.
[0033] By adopting the above technical solution, the sensor base 21 can be quickly assembled during installation using the fixing block 25 and the positioning locking bolt 27; the arc design of the fixing block 25 adapts to the contour of the bottom beam connecting rod 1, and automatically retracts and fits when pressed down; the positioning locking bolt 27 adopts a four-corner symmetrical layout; the whole installation process is simple and quick.
[0034] In this embodiment, support seats 31 are symmetrically fixedly installed at both ends of the upper surface of the sensor base 21, and the support seats 31 symmetrically arranged at both ends are connected to the two ends of the pressure sensor 32 through two fixed shafts 33.
[0035] The pressure sensor 32 is provided with a wiring port 34 at one end, and a pre-tightening adjustment component 35 and an overload protection block 36 are respectively connected to the upper and lower ends of the middle part of the pressure sensor 32. The connection between the pre-tightening adjustment component 35 and the overload protection block 36 and the pressure sensor 32 is arranged in an arc shape.
[0036] The lower end of the pre-tightening adjustment component 35 is symmetrically provided with connecting nuts 37; the upper end of the overload protection block 36 is connected to the upper bearing plate 38, and the lower end of the upper bearing plate 38 is symmetrically provided with bearing fixing bolts 39. The bearing fixing bolts 39 pass through the overload protection block 36 and the pre-tightening adjustment component 35 and are threadedly connected to the symmetrically provided connecting nuts 37; the upper end of the upper bearing plate 38 is provided with a steel leaf spring 4.
[0037] By adopting the above technical solution, the vehicle load is transmitted through the leaf spring 4, the upper bearing plate 38, the overload protection block 36, the preload adjustment component 35, and the pressure sensor 32. The pressure change is converted into an electrical signal in real time, and the terminal 34 continuously outputs data, achieving millisecond-level response and completely solving the traditional lag problem.
[0038] The preload adjustment component 35 adopts an arc-shaped contact design, which is adapted to the deformation curve of the pressure sensor 32. The preload can be finely adjusted by connecting nut 37 and bearing fixing bolt 39 to improve detection accuracy.
[0039] The working principle of this utility model is as follows: When the vehicle carries coal gangue, the weight will be transferred to the upper bearing plate 38 through the steel leaf spring 4, and then act on the pressure sensor 32 through the pre-tightening adjustment component 35 and the overload protection block 36. The pressure sensor 32 is installed between the structure composed of the support base 31 and the fixed shaft 33. After being subjected to load, the strain gauge inside it will deform, thereby converting the pressure signal into an electrical signal, which is output through the wiring port 34.
[0040] The preload adjustment component 35 can calibrate the initial stress state of the sensor, while the overload protection block 36 can limit the pressure and protect the sensor when the vehicle is overloaded.
[0041] During installation, the sensor base 21 is aligned with the transport vehicle bottom beam connecting rod 1 and pressed down. When pressed, the four fixing blocks 25 on the inner side of both sides of the lower end of the sensor base 21 make initial contact with the upper end of the quasi-transport vehicle bottom beam connecting rod 1. The lower surface of the fixing blocks 25 is arc-shaped, and each end is equipped with a spring 23. After pressing down and making contact, the fixing blocks 25 retract into the sliding cavity 22 under the action of the spring. When the lower surface of the sensor base 21 is connected to the upper surface of the quasi-transport vehicle bottom beam connecting rod 1, the fixing blocks 25 pop out again under the action of the spring to prevent the sensor base 21 from separating from the quasi-transport vehicle bottom beam connecting rod 1. Then, the sensor base 21 is connected to the upper end of the transport vehicle bottom beam connecting rod 1 by the positioning locking bolts 27 at the four corners of the upper surface of the sensor base 21, thus completing the fixation of the overload monitoring mounting body 2 and the transport vehicle bottom beam connecting rod 1.
[0042] During installation, the sensor base 21 is quickly assembled using the fixing block 25 and the positioning locking bolt 27; the curved design of the fixing block 25 adapts to the contour of the bottom beam connecting rod 1 and automatically retracts and fits when pressed down; the positioning locking bolt 27 adopts a four-corner symmetrical layout; the whole installation process is simple and quick.
[0043] The vehicle load is transmitted through the leaf spring 4, the upper load plate 38, the overload protection block 36, the preload adjustment component 35, and the pressure sensor 32. The pressure change is converted into an electrical signal in real time, and the terminal 34 continuously outputs data to achieve millisecond-level response, completely solving the traditional lag problem.
[0044] The preload adjustment component 35 adopts an arc-shaped contact design, which is adapted to the deformation curve of the pressure sensor 32. The preload can be finely adjusted by connecting nut 37 and bearing fixing bolt 39 to improve detection accuracy.
[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A pressure-sensing-based overload monitoring mechanism for coal gangue transport vehicles, characterized in that: include The bottom beam connecting rod (1) of the transport vehicle is connected at its upper end to the overload monitoring mounting base (2); an overload monitoring mechanism (3) is installed at the upper end of the overload monitoring mounting base (2); and a steel leaf spring (4) is provided at the upper end of the overload monitoring mechanism (3). The overload monitoring mounting base (2) includes a sensor base (21). The inner side of the sensor base (21) is connected to the outer side of the connecting rod (1) of the bottom beam of the transport vehicle. The sensor base (21) has symmetrical sliding cavities (22) on both sides of its lower end. Springs (23) are fixedly installed in the sliding cavities (22). The other end of the springs (23) is connected to the limiting seat (24). The limiting seat (24) is located at one end of the fixed block (25). The limiting seat (24) is slidably connected to the sliding cavity (22). The lower surface of the other end of the fixed block (25) is arc-shaped.
2. The coal gangue transport vehicle overload monitoring mechanism based on pressure sensing according to claim 1, characterized in that: The upper surface of the fixed block (25) is connected to the lower surface of the connecting rod (1) of the bottom beam of the transport vehicle; the side with the sliding cavity (22) that is symmetrical on the left and right is provided with a block limiting plate (26), and the block limiting plate (26) is correspondingly set with the limiting seat (24).
3. The pressure-sensing-based overload monitoring mechanism for coal gangue transport vehicles according to claim 2, characterized in that: The sensor base (21) is provided with positioning locking bolts (27) at the four corners of the upper end. The lower ends of the four positioning locking bolts (27) are connected to the upper surface of the bottom beam connecting rod (1) of the transport vehicle.
4. The pressure-sensing-based overload monitoring mechanism for coal gangue transport vehicles according to claim 3, characterized in that: The sensor base (21) has support seats (31) fixedly installed symmetrically at both ends on its upper surface. The support seats (31) arranged symmetrically at both ends are connected to the two ends of the pressure sensor (32) through two fixed shafts (33).
5. The pressure-sensing-based overload monitoring mechanism for coal gangue transport vehicles according to claim 4, characterized in that: The pressure sensor (32) is provided with a wiring port (34) at one end, and a pre-tightening adjustment component (35) and an overload protection block (36) are respectively connected to the upper and lower ends of the middle part of the pressure sensor (32). The connection between the pre-tightening adjustment component (35) and the overload protection block (36) and the pressure sensor (32) is set in an arc shape.
6. The coal gangue transport vehicle overload monitoring mechanism based on pressure sensing according to claim 5, characterized in that: The lower end of the pre-tightening adjustment component (35) is symmetrically provided with connecting nuts (37); the upper end of the overload protection block (36) is connected to the upper bearing plate (38), and the lower end of the upper bearing plate (38) is symmetrically provided with bearing fixing bolts (39). The bearing fixing bolts (39) pass through the overload protection block (36) and the pre-tightening adjustment component (35) and are threadedly connected to the symmetrically provided connecting nuts (37); the upper end of the upper bearing plate (38) is provided with a steel leaf spring (4).