Intelligent fireproof curtain lifting device of rail grinding wagon

Abstract

The utility model relates to the technical field of steel rail grinding wagon safety equipment, in particular to a steel rail grinding wagon intelligent fireproof curtain lifting device which comprises lifting devices and a safety device, the lifting devices are installed on the two sides of a grinding wagon carriage, fireproof curtains are installed at the execution ends of the lifting devices, and the lifting devices control lifting of the fireproof curtains. The lifting device comprises hydraulic cylinders and a cloth curtain frame, the hydraulic cylinders are installed on the two sides of the cloth curtain frame through hydraulic cylinder covers, the cloth curtain frame is installed on the grinding wagon carriage, cylinder rods of the hydraulic cylinders are connected with telescopic rods, and the outer sides of the telescopic rods are connected with fireproof curtains. Automatic lifting is achieved through the hydraulic cylinder, sparks are prevented from splashing to the two sides of a line, the fireproof curtain is prevented from being repeatedly disassembled and assembled when the grinding wagon is maintained, operation is easy, labor intensity is lowered, and working efficiency is improved; the fireproof curtains are sequentially and automatically lifted at line obstacles, limit invasion is avoided, the risk that the fireproof curtains are collided and damaged in batches is reduced, the service life of the fireproof curtains is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of safety equipment for rail grinding vehicles, specifically to an intelligent fireproof curtain lifting device for rail grinding vehicles. Background Technology

[0002] The fireproof curtain of a rail grinding vehicle is a safety protection device used in railway track grinding operations. It is used to prevent sparks and fragments generated during the grinding process from splashing onto surrounding equipment or personnel, thereby reducing the risk of fire and ensuring the safety of operators.

[0003] Currently, rail grinding vehicles frequently ignite flammable materials such as weeds along the track during operation, resulting in 2-3 fires at each track closure point during spring and autumn. In severe cases, these fires ignite wheat fields and pine trees, causing the fires to spread, damaging public and private property, and burning cables near the track, causing adverse effects. Since May 2022, research has been conducted on improving the fire resistance of fire curtains. After comparing multiple solutions and considering on-site capabilities, two fire curtains have been stacked, with the lower edge of the fire curtain approximately 20mm away from the upper surface of the rail sleeper or the top layer of ballast. This prevents sparks from falling to either side of the track, thus improving fire resistance. This solution requires daily installation and removal of the fire curtains to prevent encroachment during operation, occupying 20 minutes of track closure time.

[0004] Currently, the installation method for fire curtains involves welding multiple lock noses or hanging rods to the side of the rail grinding vehicle. The fire curtain has a row of hanging holes, and the lock noses or hanging rods are inserted into the hanging holes. The outside of the lock noses or hanging rods has locking pin holes, and locking pins are inserted into the locking pin holes to limit and fix the fire curtain.

[0005] Existing fire curtains have a relatively simple installation structure, but are cumbersome to operate. They require individual fixing of all locking pins, making disassembly and assembly labor-intensive and inefficient. Furthermore, the fire curtains are fixed installations, lacking height adjustment and adaptability to different track environments, posing a risk of collision damage. Therefore, there is an urgent need to design an intelligent fire curtain lifting device for rail grinding vehicles to solve the problems of cumbersome operation and the risk of collision damage associated with existing fire curtains due to their lack of height adjustment. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide an intelligent fireproof curtain lifting device for a rail grinding vehicle.

[0007] The technical solution adopted by this utility model to solve its technical problem is: an intelligent fireproof curtain lifting device for a rail grinding vehicle, including a lifting device and a safety device. The lifting device is installed on both sides of the grinding vehicle carriage, and a fireproof curtain is installed at the execution end of the lifting device. The lifting device controls the lifting and lowering of the fireproof curtain.

[0008] The lifting device includes a hydraulic cylinder and a curtain frame. The hydraulic cylinder is mounted on both sides of the curtain frame through a hydraulic cylinder cover. The curtain frame is mounted on the grinding vehicle carriage. The cylinder rod of the hydraulic cylinder is connected to a telescopic rod, and the outside of the telescopic rod is connected to a fireproof curtain.

[0009] Specifically, the hydraulic cylinder cover is fixed to the curtain frame by four mounting seats and bolts. The curtain frame is fixed to the side of the grinding vehicle carriage by bolts. The curtain frame is inclined. The hydraulic cylinder inside the hydraulic cylinder cover runs in an inclined direction towards the inside of the grinding vehicle carriage.

[0010] Specifically, a hydraulic cylinder is fixedly installed inside the hydraulic cylinder cover, and a telescopic rod is connected to the end of the cylinder rod of the hydraulic cylinder. The telescopic rod slides and extends and retracts inside the hydraulic cylinder cover, and a hook is connected to the outer end of the telescopic rod.

[0011] Specifically, the hooks are used to hang the support rods on both sides of the fireproof curtain mounting frame, and the fireproof curtain mounting frame is provided with several hanging columns, on which the fireproof curtains are installed.

[0012] Specifically, the safety device includes a protective steel wire and a fixing seat. One end of the protective steel wire is fixedly connected to the hydraulic cylinder cover, and the other end of the protective steel wire is fixedly connected to the fixing seat. The fixing seat is welded to the grinding vehicle carriage.

[0013] Specifically, the hydraulic cylinders are connected to a hydraulic station via hydraulic oil lines. The hydraulic station is installed on the grinding vehicle's carriage, and one hydraulic station controls two hydraulic cylinders to operate synchronously.

[0014] Specifically, the electrical control unit of the hydraulic station is connected to the electrical control box of the anti-collision device. The electrical control box is installed on the grinding vehicle carriage. The main control board is installed inside the electrical control box. The main control board is connected to the collision sensor through a cable. The collision sensor is installed in front of the first fireproof curtain in the forward direction of the grinding vehicle carriage.

[0015] Specifically, the main control board is equipped with an infrared wireless module and a LoRA control host. The main control board is also connected to a button panel and an audible and visual alarm. The audible and visual alarm is installed on the top of the electrical control box, and the button panel is installed on the outside of the electrical control box.

[0016] This utility model has the following beneficial effects:

[0017] The intelligent fireproof curtain lifting device for rail grinding carts designed in this utility model achieves automatic lifting and lowering through hydraulic cylinders, and automatically adjusts the height of the fireproof curtain according to the condition of the track ballast shoulders, ensuring that the distance between the lower edge of the fireproof curtain and the upper surface of the rail sleeper or the uppermost layer of ballast is 20mm, preventing sparks from falling to both sides of the track. When the cart is retracted, the fireproof curtain mechanism is locked securely and does not infringe on the track limits, avoiding repeated disassembly and reassembly of the fireproof curtain during maintenance of the grinding cart. The device is simple to operate, reduces labor intensity, and improves work efficiency.

[0018] The intelligent fireproof curtain lifting device for the rail grinding vehicle designed in this utility model uses a distributed intelligent control system based on the Internet of Things to automatically detect line obstacles that interfere with the fireproof curtain during operation. The fireproof curtain automatically rises sequentially at the line obstacles to avoid encroachment, reduce the risk of mass impact damage to the fireproof curtain, improve the service life of the fireproof curtain, and reduce maintenance costs. Attached Figure Description

[0019] Figure 1 This is a plan view of the overall layout of a single carriage of the intelligent fireproof curtain lifting device for the rail grinding vehicle.

[0020] Figure 2 This is a structural diagram of the intelligent fireproof curtain lifting device for a rail grinding vehicle. Figure 1 .

[0021] Figure 3 This is a structural diagram of the intelligent fireproof curtain lifting device for a rail grinding vehicle. Figure 2 .

[0022] Figure 4 This is a partial design drawing of the telescopic pole installation.

[0023] Figure 5 This is a structural diagram of a fire curtain mounting bracket.

[0024] Figure 6 This is a schematic diagram of the curtain frame structure. Figure 1 .

[0025] Figure 7 This is a schematic diagram of the curtain frame structure. Figure 2 .

[0026] Figure 8 This is a structural diagram of a telescopic rod.

[0027] As shown in the figure: 1-Lifting device, 1.1-Hydraulic cylinder cover, 1.2-Telescopic rod, 1.3-Hook, 1.4-Mounting base, 1.5-Hydraulic station, 1.6-Cloth curtain frame, 1.7-Fireproof curtain mounting frame, 1.8-Hanging column;

[0028] 2-Anti-collision device, 2.1-Collision sensor, 2.2-Electrical control box, 2.3-Infrared wireless module, 2.4-LoRA control host, 2.5-Audible and visual alarm;

[0029] 3-Installation device, 3.1-Protective steel wire, 3.2-Fixing base;

[0030] 4-Fireproof curtain; 5-Grinding car body. Detailed Implementation

[0031] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] like Figures 1-8 As shown, an intelligent fireproof curtain lifting device for a rail grinding vehicle includes a lifting device 1, an anti-collision device 2, and a safety device 3. Three sets of lifting devices 1 are installed on each side of the grinding vehicle carriage 5. Fireproof curtains 4 are installed at the execution end of the lifting device 1. The lifting device 1 controls the lifting height of the fireproof curtains 4.

[0033] The lifting device 1 includes a hydraulic cylinder, a hydraulic cylinder cover 1.1, a telescopic rod 1.2, a hook 1.3, a hydraulic station 1.5, a curtain frame 1.6, a fireproof curtain mounting bracket 1.7, and a mounting column 1.8. The hydraulic cylinder is installed on both sides of the curtain frame 1.6 through the hydraulic cylinder cover 1.1. The hydraulic cylinder cover 1.1 is fixed to the curtain frame 1.6 through four mounting seats 1.4 and bolts. The curtain frame 1.6 is fixed to the side of the grinding car body 5 by bolts. The curtain frame 1.6 is inclined. The hydraulic cylinder inside the hydraulic cylinder cover 1.1 runs in an inward inclination towards the inside of the grinding car body 5.

[0034] The cylinder rod of the hydraulic cylinder is connected to the telescopic rod 1.2, and the outer side of the telescopic rod 1.2 is connected to the fireproof curtain 4. The hydraulic cylinder is fixedly installed inside the hydraulic cylinder cover 1.1. The end of the cylinder rod of the hydraulic cylinder is connected to the telescopic rod 1.2. The telescopic rod 1.2 slides and extends within the hydraulic cylinder cover 1.1. The outer end of the telescopic rod 1.2 is connected to the hook 1.3.

[0035] The support rods on both sides of the fire curtain mounting bracket 1.7 are hung on the hook 1.3. The fire curtain mounting bracket 1.7 is provided with several hanging columns 1.8. The fire curtain 4 is installed on the hanging columns 1.8 by locking pins.

[0036] The hydraulic cylinders are connected to hydraulic station 1.5 via hydraulic oil lines. Hydraulic station 1.5 is mounted on the grinding truck's cargo box 5. One hydraulic station 1.5 controls the synchronous operation of two hydraulic cylinders. Hydraulic station 1.5 uses a 300W small dual-cylinder pressure-holding and throttling hydraulic station, and the oil inside hydraulic station 1.5 is fire-resistant hydraulic oil. The cylinder diameter (inner diameter) and rod diameter of the hydraulic cylinder: Φ140 / 100 mm indicates that the cylinder's inner diameter is 140 mm and the rod diameter is 100 mm. These dimensions directly affect the hydraulic cylinder's load-bearing capacity and range of motion. The stroke of the hydraulic cylinder: 800 mm of stroke indicates the distance the piston can move inside the hydraulic cylinder. The choice of stroke depends on specific application requirements, such as the need for a wide range of motion or precise position control. The cylinder thrust of the hydraulic cylinder: 3-5 tons of cylinder thrust indicates the maximum thrust range that the hydraulic cylinder can generate. This parameter determines the load capacity of the hydraulic cylinder under specific working conditions.

[0037] The safety device 3 includes a protective steel wire 3.1 and a fixed seat 3.2. One end of the protective steel wire 3.1 is fixedly connected to the hydraulic cylinder cover 1.1 through a wire buckle and a connecting ring, and the other end of the protective steel wire 3.1 is fixedly connected to the fixed seat 3.2 through a wire buckle and a connecting ring. The fixed seat 3.2 is welded on the carriage 5 of the grinding vehicle. The protective steel wire 3.1 provides secondary safety protection for the hydraulic cylinder to prevent the equipment from falling and damaging the track and the vehicle.

[0038] The electronic control unit of the hydraulic station 1.5 is connected to the electric control box 2.2 of the anti-collision device 2. The electric control box 2.2 is installed on the carriage 5 of the grinding vehicle. A main control board is arranged in the electric control box 2.2. The main control board is connected to the collision sensor 2.1 through a cable. The collision sensor 2.1 is installed in front of the first fire curtain 4 in the forward direction of the carriage 5 of the grinding vehicle. The collision sensor 2.1 adopts an existing ordinary type of sensor, with an input voltage of 3.3V or 5V, and the port connection is a digital quantity level type.

[0039] An infrared wireless module 2.3 and a LoRA (Internet of Things) control host 2.4 are arranged on the main control board. A key panel and an audible and visual alarm 2.5 are also connected to the main control board. The audible and visual alarm 2.5 is installed on the top of the electric control box 2.2, and the key panel is installed outside the electric control box 2.2.

[0040] The infrared wireless module 2.3 mainly realizes communication with an external remote control to achieve remote control of the hydraulic cylinder. The LoRA control host 2.4 adopts the G-NiceRF model. The LoRA control host 2.4 realizes Internet of Things communication functions through a gateway, uploads to the PLC control system, realizes communication and linkage control of each electric control box 2.2, and can configure the number of linkage signals.

[0041] The working principle of the present utility model:

[0042] (1) Adjust and control the lowering height of the fire curtain 4

[0043] a. Determine the lowering height of the fire curtain 4 based on the collected height of the grinding vehicle from the ground.

[0044] b. Control the fire curtain 4 to lower through the one-key linkage button on the remote control. The LoRA control hosts 2.4 in each electric control box 2.2 communicate with each other through the gateway. The main control board of the electric control box 2.2 gives a control signal to the hydraulic station 1.5. The electric control box 2.2 controls the hydraulic station 1.5 to first perform a rising operation on the hydraulic cylinder. After the hydraulic cylinders rise to the highest point uniformly, the fire curtain 4 is automatically controlled to lower to the set height.

[0045] c. The hydraulic cylinder is locked through the balance valve on the hydraulic oil pipeline to lock the height position of the fire curtain 4.

[0046] d. Protective steel wire 3.1 Provide secondary safety protection for the hydraulic cylinder to prevent the equipment from falling and damaging the track and vehicle.

[0047] (2) The fireproof curtain automatically rises upon impact.

[0048] a. Install collision sensors 2.1 on the front of the fireproof curtains 4 on both sides of the grinding machine's forward direction.

[0049] b. When the collision sensor 2.1 is hit by an obstacle beside the track, it transmits the impact signal to the main control board of the electrical control box 2.2. The main control board controls the audible and visual alarm 2.5 to issue an audible and visual alarm. At the same time, the LoRA control host 2.4 on the main control board of each electrical control box 2.2 communicates with each other through the gateway, and all audible and visual alarms 2.5 issue an alarm.

[0050] c. The main control board in all electrical control boxes 2.2 controls the operation of their respective hydraulic stations 1.5, and the hydraulic cylinder controls the lifting of the fire curtain 4, avoiding excessive impact damage to the fire curtain 4, and reducing maintenance workload and economic losses.

[0051] d. After the inspection is completed, lower the fireproof curtain 4 to the working state through the above step (1)b.

[0052] This utility model is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

[0053] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart fireproof curtain lifting device for a rail grinding vehicle, characterized in that, It includes a lifting device and a safety device. The lifting device is installed on both sides of the grinding vehicle's carriage. A fireproof curtain is installed on the actuator end of the lifting device, and the lifting device controls the raising and lowering of the fireproof curtain. The lifting device includes a hydraulic cylinder and a curtain frame. The hydraulic cylinder is mounted on both sides of the curtain frame through a hydraulic cylinder cover. The curtain frame is mounted on the grinding vehicle carriage. The cylinder rod of the hydraulic cylinder is connected to a telescopic rod, and the outside of the telescopic rod is connected to a fireproof curtain.

2. The intelligent fireproof curtain lifting device for rail grinding vehicles according to claim 1, characterized in that, The hydraulic cylinder cover is fixed to the curtain frame by four mounting seats and bolts. The curtain frame is fixed to the side of the grinding vehicle carriage by bolts. The curtain frame is inclined. The hydraulic cylinder inside the hydraulic cylinder cover runs in an inclined direction towards the inside of the grinding vehicle carriage.

3. The intelligent fireproof curtain lifting device for rail grinding vehicles according to claim 1, characterized in that, The hydraulic cylinder is fixedly installed inside the hydraulic cylinder cover. The cylinder rod end of the hydraulic cylinder is connected to a telescopic rod, which slides and extends and retracts inside the hydraulic cylinder cover. The outer end of the telescopic rod is connected to a hook.

4. The intelligent fireproof curtain lifting device for rail grinding vehicles according to claim 3, characterized in that, The hooks are used to hang the support rods on both sides of the fireproof curtain mounting frame. The fireproof curtain mounting frame is equipped with several hanging columns, on which the fireproof curtains are installed.

5. The intelligent fireproof curtain lifting device for rail grinding vehicles according to claim 1, characterized in that, The safety device includes a protective steel wire and a fixing seat. One end of the protective steel wire is fixedly connected to the hydraulic cylinder cover, and the other end of the protective steel wire is fixedly connected to the fixing seat. The fixing seat is welded to the grinding vehicle carriage.

6. The intelligent fireproof curtain lifting device for rail grinding vehicles according to claim 1, characterized in that, The hydraulic cylinders are connected to a hydraulic station via hydraulic oil lines. The hydraulic station is installed on the grinding vehicle's carriage, and one hydraulic station controls the synchronous operation of two hydraulic cylinders.

7. The intelligent fireproof curtain lifting device for rail grinding vehicles according to claim 6, characterized in that, The electrical control unit of the hydraulic station is connected to the electrical control box of the anti-collision device. The electrical control box is installed on the grinding vehicle carriage. The main control board is installed inside the electrical control box. The main control board is connected to the collision sensor through a cable. The collision sensor is installed in front of the first fireproof curtain in the forward direction of the grinding vehicle carriage.

8. The intelligent fireproof curtain lifting device for rail grinding vehicles according to claim 7, characterized in that, The main control board is equipped with an infrared wireless module and a LoRA control host. The main control board is also connected to a button panel and an audible and visual alarm. The audible and visual alarm is installed on the top of the electrical control box, and the button panel is installed on the outside of the electrical control box.

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