Protective device of car dumper

Abstract

The invention provides a protection device of a car dumper, which comprises a hydraulic buffer, a rubber shock pad, a reinforced connecting bolt, an end ring reinforcing suite, a pressure sensor, a strain sensor, a displacement sensor, a central controller, an alarm device, a display screen, a data storage module and a wireless communication module, the hydraulic buffer is installed at the key stress point of the contact portion of the tippler end ring and a vehicle, the rubber shock pad is installed on the periphery of the end ring in a surrounding mode, the reinforced connecting bolt is made of high-strength alloy steel, and the end ring reinforcing kit comprises the step that the key stress portion of the end ring is locally thickened and additionally provided with a reinforcing rib structure. The device can buffer and disperse the counter-acting force of a railway vehicle spring, reduce the impact on an end ring hydraulic system, prevent hydraulic leakage, enhance the structural strength and stability of the end ring and the connecting bolt, avoid end ring breakage and bolt cracking, eliminate the hidden danger of vehicle derailment, and guarantee long-term safe and efficient operation of a car dumper.

Description

Technical Field

[0001] The invention relates to the technical field of car tipping machines, in particular to a protective device for car tipping machines. Background Art

[0002] A car dumper is a mechanical device used to unload bulk materials from railway open cars. It is also commonly seen underground in mines. Its function is to unload bulk materials loaded on railway freight cars into the silo below in an efficient and automated manner.

[0003] In the operation scenario of the car tipper, which is a key link in railway transportation and bulk material loading and unloading, when the car tipper performs bulk material tipping operation on the railway vehicle, a strong reaction force will be generated due to the vehicle spring during the operation. This reaction force directly acts on the hydraulic system of the end ring of the car tipper, and the existing car tipper has obvious deficiencies in design and protection mechanism. The hydraulic system is difficult to withstand such frequent and high-intensity impacts, resulting in frequent leakage, which not only leads to the waste of hydraulic oil and the risk of environmental pollution, but also seriously affects the normal operation efficiency of the car tipper, and increases the maintenance cost and downtime of the equipment. At the same time, as the key structural components of the car tipper, the end ring and the connecting bolts gradually exceed the limit under the continuous action of such abnormal external force. The end ring is prone to breakage and the bolts will crack. This series of problems directly weakens the stability and reliability of the overall structure of the car tipper. Once the end ring or bolt fails seriously, it is very likely to cause a railway vehicle derailment accident, which will cause immeasurable losses to the safety of personnel, railway transportation order and cargo property. To this end, we propose a protective device for the car tipper to solve the above problems. Summary of the invention

[0004] In view of the shortcomings existing in the above problems, the present invention provides a protective device for a car tipper, which can effectively buffer and disperse the reaction force of the railway vehicle spring, reduce the impact on the hydraulic system of the end ring of the car tipper, and prevent leakage of the hydraulic system; significantly enhance the structural strength and stability of the end ring and connecting bolts of the car tipper, prevent the end ring from breaking and the bolt from cracking, and fundamentally eliminate the potential risk of vehicle derailment accidents; at the same time, it has intelligent monitoring and early warning functions, and can grasp the working status of the protective device and the health status of key components of the car tipper in real time, so as to carry out maintenance and care in time, and ensure the long-term, safe and efficient operation of the car tipper.

[0005] In order to solve the above problems, the technical solution provided by the present invention is as follows:

[0006] A protective device for a tipping machine, comprising a hydraulic buffer, a rubber shock-absorbing pad, a reinforced connecting bolt, an end ring reinforcement kit, a pressure sensor, a strain sensor, a displacement sensor, a central controller, an alarm device, a display screen, a data storage module and a wireless communication module, wherein the hydraulic buffer is installed at a key stress point where the end ring of the tipping machine contacts a vehicle, the rubber shock-absorbing pad is installed around the periphery of the end ring and is made of a highly elastic and wear-resistant rubber material with a thickness of 20-50 mm, the reinforced connecting bolt is made of high-strength alloy steel, a carburizing and quenching treatment layer is added to the threaded portion, anti-loosening washers are installed at the connection between the reinforced connecting bolt and the end ring and the main structure, and the end ring reinforcement kit includes local thickening treatment of the key stress-bearing parts of the end ring and the addition of a reinforcing rib structure.

[0007] Furthermore, the pressure sensor is installed in the hydraulic chamber inside the hydraulic buffer, the strain sensor adopts a high-precision resistance strain gauge sensor, and the strain sensor is pasted on the key stress-bearing parts of the end ring and the reinforced connecting bolt. The displacement sensor adopts a laser displacement sensor, and the displacement sensor is installed between the end ring and the main structure of the tipper.

[0008] Furthermore, the central controller adopts a high-performance industrial programmable logic controller (PLC), and the central controller receives real-time data from pressure sensors, strain sensors and displacement sensors.

[0009] Furthermore, the alarm device includes an audible and visual alarm, and the alarm device is installed near the tipping machine operating console.

[0010] Furthermore, the display screen adopts a liquid crystal touch screen, and the display screen is installed on the operation console.

[0011] Furthermore, the data storage module is connected to the central controller.

[0012] Furthermore, the wireless communication module adopts 5G or industrial Ethernet wireless communication technology.

[0013] Furthermore, the depth of the carburized and quenched layer of the reinforced connecting bolt is between 0.5 and 1 mm, and the anti-loosening washer is an elastic anti-loosening washer made of stainless steel.

[0014] Furthermore, the reinforcing ribs of the end ring reinforcement kit adopt a triangular structure and are distributed on the inner and outer sides of the end ring. The thickness is between 10-20 mm and the height is between 30-50 mm. It is made of high-strength steel of the same material as the end ring and is firmly connected to the end ring by welding.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. Good buffer protection: The multi-level buffer system composed of hydraulic buffers and rubber shock-absorbing pads can effectively reduce the impact force, avoid hydraulic system leakage and damage to end rings and bolts, enhance the stability and safety of the tipper operation, and ensure the normal loading and unloading of bulk materials.

[0017] 2. Accurate monitoring and early warning: Relying on high-precision sensors to collect key data, the central controller intelligently analyzes it, and promptly issues sound and light alarms and remote notifications in case of abnormalities. Compared with manual inspections, it can detect faults faster and more accurately, reduce the probability of accidents, and ensure long-term stable operation.

[0018] 3. Good structural reinforcement: Special treatment and anti-loosening washers are used to strengthen the connecting bolts, and reinforcement kits are added to the end rings to improve the strength and stability of the components, extend the service life, reduce maintenance costs and accident risks, and ensure the safety of railway transportation and cargo.

[0019] In summary, this type of protective device for a tipping machine has wide practicality and can solve the problem proposed in the above background technology that after the tipping machine performs bulk material tipping operation, the railway vehicle spring exerts a strong force on the vehicle on the tipping machine end ring hydraulic system, which causes frequent leakage of the hydraulic system. At the same time, the tipping machine end rings and bolts may break and crack, greatly increasing the risk of vehicle derailment accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the cooling pipeline of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the rubber shock-absorbing pad of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the reinforced connecting bolt of the present invention.

[0024] Description of main component symbols:

[0025] 1-Hydraulic buffer, 2-Rubber shock-absorbing pad, 3-Reinforced connecting bolt, 4-End ring reinforcement kit, 5-Pressure sensor, 6-Strain sensor, 7-Displacement sensor, 8-Central controller, 9-Alarm device, 10-Display screen, 11-Data storage module, 12-Wireless communication module, 13-Carburizing and quenching treatment layer, 14-Anti-loosening gasket, 15-Sealing rubber ring, 16-Cooling pipe, 17-Coolant circulation pump, 18-Hydraulic accumulator. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples, but the examples are not intended to limit the present invention.

[0027] like Figure 1-4 As shown, the embodiment of the present invention includes hydraulic buffer 1, rubber shock-absorbing pad 2, reinforced connecting bolt 3, end ring reinforcement kit 4, pressure sensor 5, strain sensor 6, displacement sensor 7, central controller 8, alarm device 9, display screen 10, data storage module 11, wireless communication module 12 and other components. The hydraulic buffer 1 is installed at the key force point where the end ring of the tipping machine contacts the vehicle. A piston structure with adjustable damping is provided inside it. When the reaction force of the vehicle spring is transmitted, the hydraulic buffer 1 can automatically adjust the damping force according to the preset damping curve, gradually absorb and transform the impact force, effectively reduce the instantaneous impact peak of the end ring hydraulic system, protect the sealing performance of the hydraulic system, and prevent leakage. The rubber shock-absorbing pad 2 is installed around the periphery of the end ring. It is made of highly elastic and wear-resistant rubber material with a thickness of 20-50 mm. It has good deformation recovery ability and can further disperse and absorb the remaining impact force. It works in conjunction with the hydraulic buffer 1 to form a multi-level buffer system. The reinforced connecting bolt 3 is made of high-strength alloy steel, and a carburized quenching treatment layer 13 is added to the threaded part to improve the hardness and wear resistance of the thread. At the same time, a locking washer 14 is installed at the connection between the bolt, the end ring, and the main structure to prevent the bolt from loosening. The end ring reinforcement kit 4 includes local thickening treatment of the key stress-bearing parts of the end ring and adding a reinforcing rib structure to improve the overall structural strength of the end ring.

[0028] The pressure sensor 5 is installed in the hydraulic chamber inside the hydraulic buffer 1, and is used to monitor the pressure value of the buffer in real time. Its measurement accuracy can reach ±0.1MPa, and it can accurately feedback the impact force size data. The strain sensor 6 adopts a high-precision resistance strain gauge sensor, which is pasted on the key stress-bearing parts of the end ring and the connecting bolts. It can measure small strain changes. The measurement range is ±2000με, and it can timely and accurately monitor the stress deformation of the components. The displacement sensor 7 adopts a laser displacement sensor, which is installed between the end ring and the main structure of the tipper. It can measure the displacement change of the end ring relative to the main structure. The measurement accuracy reaches ±0.05 mm, which provides a basis for judging the stability of the end ring.

[0029] The central controller 8 adopts a high-performance industrial programmable logic controller (PLC) with powerful data processing capabilities and fast response speed. It receives real-time data from the pressure sensor 5, strain sensor 6 and displacement sensor 7, and analyzes and processes them according to the built-in intelligent algorithm. When it is detected that the pressure exceeds the preset pressure threshold such as 10MPa, the strain exceeds the safe strain threshold such as 1000με, or the displacement exceeds the allowable displacement threshold such as 0.5mm, the alarm device 9 is immediately triggered.

[0030] The alarm device 9 includes an audible and visual alarm, which is installed in a conspicuous position near the dumper operation console. When the alarm is triggered, a strong audible and visual signal is emitted to remind the operator to pay attention to the abnormal situation of the equipment in time. At the same time, the alarm information will also be sent to the remote monitoring center through the wireless communication module 12 so that the remote management personnel can know it in time.

[0031] The display screen 10 adopts a liquid crystal touch screen, which is installed on the operation console and can intuitively display the real-time data collected by the sensor, the equipment operation status information and the alarm record, etc. The operator can perform operations such as parameter setting and viewing historical data through the touch screen, and can grasp the equipment operation status conveniently and quickly.

[0032] The data storage module 11 is connected to the central controller 8 and uses large-capacity solid-state hard disk storage technology to store at least one year of equipment operation data, including sensor data, alarm records, operation logs, etc. These data can be used for subsequent fault analysis, equipment maintenance and performance evaluation, and provide data support for optimizing equipment operation and maintenance strategies.

[0033] The wireless communication module 12 uses 5G or industrial Ethernet wireless communication technology to ensure high-speed, stable and reliable data transmission. It can not only send alarm information to the remote monitoring center, but also realize the remote monitoring center's remote parameter setting of the equipment, remote control command issuance and other functions, which is convenient for remote management and maintenance.

[0034] The carburized quenching treatment layer 13 of the strengthening connecting bolt 3 has a depth of 0.5-1 mm and a hardness value of HRC58-62, which effectively improves the shear resistance and wear resistance of the thread. The anti-loosening washer 14 adopts an elastic anti-loosening washer made of stainless steel, which has good corrosion resistance and elastic recovery ability, and can always maintain the tightening force on the bolt in a long-term vibration environment.

[0035] The reinforcing ribs of the end ring reinforcement kit 4 adopt a triangular structure and are distributed on the inner and outer sides of the end ring. The thickness is between 10-20 mm and the height is between 30-50 mm. It is made of high-strength steel of the same material as the end ring and is firmly connected to the end ring by welding to enhance the overall rigidity and deformation resistance of the end ring.

[0036] Among them, the electrical components appearing in the text are all electrically connected to an external main controller and a power supply, and the main controller can be a conventional known device for control such as a computer.

[0037] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A protective device for a tipping machine, characterized in that: The invention comprises a hydraulic buffer (1), a rubber shock-absorbing pad (2), a reinforced connecting bolt (3), an end ring reinforcement kit (4), a pressure sensor (5), a strain sensor (6), a displacement sensor (7), a central controller (8), an alarm device (9), a display screen (10), a data storage module (11) and a wireless communication module (12). The hydraulic buffer (1) is installed at a key stress point where the end ring of the tipping machine contacts the vehicle. The rubber shock-absorbing pad (2) is installed around the periphery of the end ring and is made of a highly elastic and wear-resistant rubber material with a thickness of 20-50 mm. The reinforced connecting bolt (3) is made of high-strength alloy steel and a carburizing and quenching treatment layer (13) is added to the threaded part. An anti-loosening washer (14) is installed at the connection between the reinforced connecting bolt (3) and the end ring and the main structure. The end ring reinforcement kit (4) comprises a local thickening treatment for the key stress-bearing part of the end ring and an additional reinforcing rib structure.

2. A protective device for a car tipper as claimed in claim 1, characterized in that: The pressure sensor (5) is installed in the hydraulic chamber inside the hydraulic buffer (1); the strain sensor (6) is a high-precision resistance strain gauge sensor; the strain sensor (6) is pasted on the key stress-bearing parts of the end ring and the reinforced connecting bolt (3); the displacement sensor (7) is a laser displacement sensor; the displacement sensor (7) is installed between the end ring and the main structure of the tipping machine.

3. A protection device for a car tipper as claimed in claim 2, characterized in that: The central controller (8) adopts a high-performance industrial programmable logic controller (PLC), and the central controller (8) receives real-time data from the pressure sensor (5), the strain sensor (6) and the displacement sensor (7).

4. A protection device for a car tipper as claimed in claim 3, characterized in that: The alarm device (9) comprises an audible and visual alarm, and the alarm device (9) is installed near the operating console of the tipping machine.

5. A protective device for a car tipper as claimed in claim 4, characterized in that: The display screen (10) adopts a liquid crystal touch screen, and the display screen (10) is installed on an operation console.

6. A protection device for a car tipper as claimed in claim 5, characterized in that: The data storage module (11) is connected to the central controller (8).

7. A protection device for a car tipper as claimed in claim 6, characterized in that: The wireless communication module (12) adopts 5G or industrial Ethernet wireless communication technology.

8. A protection device for a car tipper as claimed in claim 7, characterized in that: The carburized quenching treatment layer (13) of the reinforced connecting bolt (3) has a depth of 0.5-1 mm, and the anti-loosening washer (14) is an elastic anti-loosening washer made of stainless steel.

9. A protection device for a car tipper as claimed in claim 8, characterized in that: The reinforcing ribs of the end ring reinforcement kit (4) adopt a triangular structure and are distributed on the inner and outer sides of the end ring. The thickness is between 10-20 mm and the height is between 30-50 mm. The ribs are made of the same high-strength steel as the end ring and are firmly connected to the end ring by welding.

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