Dustproof and fireproof device and rail grinding trolley

Abstract

The application discloses a dustproof and fireproof device and a rail grinding trolley, and relates to the technical field of rail grinding trolleys.The dustproof and fireproof device comprises a top plate assembly, a side plate assembly, an internal middle plate assembly, a front-rear plate assembly, a side door lifting driving mechanism and a side door overturning driving mechanism.The top plate assembly is fixedly connected with the upper part of a main beam longitudinal beam and a grinding device frame.The side plate assembly is hingedly connected with the side of the grinding device frame.The internal middle plate assembly is connected with the lower part of the main beam longitudinal beam, and the front-rear plate assembly is connected with the lower part of an end beam.The side door lifting driving mechanism is connected with the side plate assembly, and the side door overturning driving mechanism is connected with the end beam and the side plate assembly.The dustproof and fireproof device can solve the technical problems of poor dustproof and fireproof effects, poor maintainability and poor passing performance in a turnout area of an existing dustproof and fireproof device.

Description

Technical Field

[0001] This application relates to the field of railway engineering machinery technology, and in particular to a dustproof and fireproof device and a rail grinding trolley used in rail grinding operations. Background Technology

[0002] As a major component of railways, rails are subjected to the cyclical loads of train wheelsets over long periods, making them prone to defects such as corrugation, spalling, cracks, scratches, and edge thickening. Rail grinding is a rail repair technology that eliminates surface defects and extends the service life of rails by polishing their surfaces. The grinding device is the executing mechanism for rail grinding operations and a key component of the rail grinding train, playing a vital role. During rail grinding operations, the high-speed rotating grinding wheel contacts the rail, generating a large amount of sparks and high-temperature iron filings. These sparks and iron filings fly out at high speed along the grinding tangent, easily igniting flammable materials around the railway line or damaging electrical facilities on both sides of the railway. In addition, rail grinding generates a large amount of dust, harming the health of workers, polluting the environment, and damaging electrical equipment.

[0003] The dust and fire prevention device for rail grinding vehicles is one of the core components of the grinding system. It covers the entire perimeter of the grinding system, isolating the internal space from the external space to form a relatively independent area. This prevents sparks and high-temperature iron filings from escaping, improves the dust collection efficiency of the dust collection device, and effectively improves the working environment for grinding personnel, reducing the risk of fire. However, existing dust and fire prevention devices generally suffer from poor dust and fire prevention performance, poor maintainability, and poor passage in turnout areas.

[0004] The following documents are relevant to this application in the prior art:

[0005] This document is a Chinese utility model patent applied for by Sichuan Kunchengrun Technology Co., Ltd. on September 25, 2023, and published on April 19, 2024, with publication number CN220813259U. This utility model discloses a dust-blocking device inside a grinding beam, comprising an inner dust-blocking box. The bottom of the inner dust-blocking box has a flat dust suction port located near and inside the grinding stone. Below the dust suction port is an inner baffle. The outer side of the inner dust-blocking box has a movable baffle for contacting the inner side of the grinding beam. The top of the inner dust-blocking box has several exhaust pipes connected to external ventilation equipment. The interior of the inner dust-blocking box has a guide plate for preventing dust turbulence. The inner dust-blocking box is movably mounted on the grinding frame via a moving mechanism. The telescopic cylinder of this solution can drive the inner dustproof box to move along a specific trajectory to achieve dynamic adjustment of the inner dustproof box, thereby providing clearance for the rotation and angle adjustment of the grinding beam. At the same time, it can also ensure that the dust suction port of the inner dustproof box can be close enough to the dust generation point during grinding to enhance the dust collection effect.

[0006] Grinding the wheel end face is an active grinding process used for restorative grinding operations. It involves a larger grinding volume and requires more sophisticated dust and fire prevention devices. Furthermore, active grinding equipment is larger and demands more space. This dust-blocking device design improves upon the poor dust collection efficiency of current passive grinding devices with dust collection systems inside the grinding beam. However, this dust-blocking device is designed for passive grinding devices and can only be used for preventative grinding operations; it is not suitable for active grinding equipment. Moreover, the dust-blocking device uses a closed, rigid connection structure on the side, significantly obstructing the use of side space. When maintenance is required inside the grinding device, its rigid connection structure hinders maintenance personnel from performing repair operations. Utility Model Content

[0007] In view of this, the purpose of this application is to provide a dustproof and fireproof device and a rail grinding trolley to solve the technical problems of poor dustproof and fireproof effect, maintainability and poor passability in turnout areas of existing dustproof and fireproof devices.

[0008] To achieve the aforementioned utility model objectives, this application specifically provides a technical solution for a dustproof and fireproof device, installed on a vehicle frame. The vehicle frame includes a main longitudinal beam, a main vertical beam, a grinding device frame, and end beams. The two ends of the main longitudinal beam are connected to the main vertical beam. The grinding device frame is installed on both sides of the end beams along the transverse direction, and the end beams are located at the lower part of the main vertical beam. The device includes: a top plate assembly, a side panel assembly, an internal middle plate assembly, front and rear plate assemblies, a side door lifting drive mechanism, and a side door flipping drive mechanism. The top plate assembly is fixedly connected to the upper part of the main longitudinal beam and the grinding device frame. The side panel assembly is hinged to the side of the grinding device frame. The internal middle plate assembly is connected to the lower part of the main longitudinal beam, and the front and rear plate assemblies are connected to the lower part of the end beams. The side door lifting drive mechanism is connected to the side panel assembly, and the side door flipping drive mechanism is connected to the end beams and the side panel assembly.

[0009] Furthermore, the top panel assembly includes a door panel, a transition plate, a dust collection vent, a central dust collection port, and a central cover plate mounted on the vehicle frame. The central dust collection port is located on both sides of the central cover plate along its longitudinal direction, and the dust collection vent, transition plate, and door panel are symmetrically arranged from the inside to the outside on both sides of the central dust collection port and the central cover plate along its transverse direction. One side of the transition plate is hinged to one side of the door panel, and the other side of the door panel is connected to the vehicle frame.

[0010] Furthermore, the side panel assembly includes a side door upper panel, a side door, and a side fire-resistant soft curtain. The side door upper panel is connected to the vehicle frame, and the side door and the side fire-resistant soft curtain are sequentially installed below the side door upper panel.

[0011] Furthermore, the internal intermediate plate assembly includes an upper intermediate partition and a lower intermediate partition, wherein the upper intermediate partition is installed below the longitudinal beam of the main beam, and the lower intermediate partition is installed below the upper intermediate partition.

[0012] Furthermore, the front and rear panel assembly includes an end upper panel and an end fire-resistant soft curtain. The end upper panel is installed on the lower edge of the front and rear ends of the vehicle frame, and the end fire-resistant soft curtain is installed below the end upper panel.

[0013] Furthermore, a first door panel pivot seat is provided on the door panel, and a second door panel pivot seat is provided on the adapter plate. One side of the door panel is connected to the adapter plate through the first and second door panel pivot seats, and the door panel can rotate around the adapter plate.

[0014] Furthermore, the upper side door panel is connected to the vehicle frame via a side door pivot seat and can rotate around the vehicle frame. The side door tilting drive mechanism is installed on the front and rear sides of the upper side door panel. One end of the side door tilting drive mechanism is connected to the upper side door panel via a tilting drive mechanism rod seat, and the other end of the side door tilting drive mechanism is connected to the vehicle frame via a tilting drive mechanism tail seat.

[0015] Furthermore, one end of the side door lifting drive mechanism is mounted on the upper plate of the side door via the tailstock of the first drive mechanism, and the other end of the side door lifting drive mechanism is mounted on the side door via the rod seat of the first drive mechanism. The side door lifting drive mechanism can drive the side door to rise and fall.

[0016] Furthermore, a sliding rod is installed on the back of the side door, and four sliding rod seats are installed on the sliding rod. The first and third sliding rod seats are installed on the upper plate of the side door, and the second and fourth sliding rod seats are installed on the side door. The sliding rod is fixedly connected to the first and third sliding rod seats, and the sliding rod, the second sliding rod seats, and the fourth sliding rod seats form a translational joint.

[0017] Furthermore, both the side fire-blocking soft curtain and the end fire-blocking soft curtain are fixed by fire-blocking curtain pins and annular pins.

[0018] Furthermore, the dustproof and fireproof device also includes a middle partition lifting drive mechanism disposed between the internal intermediate plate assembly and the main beam longitudinal beam.

[0019] Furthermore, one end of the intermediate partition lifting drive mechanism is mounted on the longitudinal beam of the main beam of the vehicle frame via a second drive mechanism tailstock, and the other end is mounted on the intermediate upper partition via a second drive mechanism rod seat. The intermediate partition lifting drive mechanism can drive the intermediate upper partition to rise and fall.

[0020] Furthermore, an anti-detachment mechanism is installed between the upper intermediate partition and the vehicle frame to prevent the upper intermediate partition from falling off.

[0021] Furthermore, the lower intermediate partition is connected to the upper intermediate partition via a U-shaped shackle and locking bolts.

[0022] Furthermore, fire curtains are installed below the side door, the end upper plate, and the middle lower partition. The fire curtains are connected by quick-connect buckles and are composed of several individual fire-blocking plates.

[0023] This application also provides a specific technical solution for a rail grinding trolley, including: the dustproof and fireproof device as described above.

[0024] By implementing the dustproof and fireproof device and rail grinding trolley provided in this application, the following beneficial effects are achieved:

[0025] (1) The dustproof and fireproof device and rail grinding trolley of this application adopt a multi-dust collection port design, and multi-area targeted dust removal and cooling improve the overall airtightness, which can reduce the escape of sparks and dust, increase the internal dust removal air velocity, improve the dust collection rate, and reduce the internal temperature of the grinding device; at the same time, an impact-resistant stainless steel fire curtain is added inside, and the fire curtain is made of high temperature resistant flame retardant polyurethane and fiberglass materials. By using better heat insulation materials, the service life of the fire curtain can be extended and the fire risk can be reduced.

[0026] (2) The dustproof and fireproof device and rail grinding trolley of this application can be opened and closed at a large angle with the side doors and the top cover, which increases the maintenance space, reduces maintenance time and reduces maintenance difficulty; the fire curtain adopts a split structure design, which is composed of multiple independent small baffles, which can be quickly disassembled and installed, and the damaged fire curtain small baffles can be replaced separately, making maintenance more convenient and reducing maintenance costs.

[0027] (3) The dustproof and fireproof device and rail grinding trolley of this application have a certain degree of flexibility in the fire-blocking device (including fire-blocking curtain and fire-blocking soft curtain), which can reduce the degree of harm to both parties in an accidental collision; at the same time, the fire-blocking devices on both sides and in the middle can be automatically lifted, without lifting the grinding device as a whole, and the fire-blocking device can be lifted separately to pass through the turnout area, thus improving the passability of the grinding device. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a specific embodiment of the dustproof and fireproof device of this application;

[0030] Figure 2 This is a schematic diagram of the structure of a specific embodiment of the dustproof and fireproof device of this application from another perspective;

[0031] Figure 3 This is a schematic top view of a specific embodiment of the dustproof and fireproof device of this application;

[0032] Figure 4 This is a schematic side view of a specific embodiment of the dustproof and fireproof device of this application;

[0033] Figure 5 This is a schematic front view of a specific embodiment of the dustproof and fireproof device of this application;

[0034] Figure 6 This is a partially enlarged structural diagram of a specific embodiment of the dustproof and fireproof device of this application. Figure 1 ;

[0035] Figure 7 This is a partially enlarged structural diagram of a specific embodiment of the dustproof and fireproof device of this application. Figure 2 ;

[0036] Figure 8 This is a partially enlarged structural diagram of a specific embodiment of the dustproof and fireproof device of this application. Figure 3 ;

[0037] Figure 9 This is a partially enlarged structural diagram of a specific embodiment of the dustproof and fireproof device of this application. Figure 4 ;

[0038] Figure 10 This is a partially enlarged structural diagram of a specific embodiment of the dustproof and fireproof device of this application. Figure 5 ;

[0039] Figure 11 This is a partially enlarged structural diagram of a specific embodiment of the dustproof and fireproof device of this application. Figure 6 ;

[0040] Figure 12 This is a three-dimensional structural diagram of the frame of a rail grinding trolley in a specific embodiment of this application;

[0041] Figure 13 This is a three-dimensional structural diagram of the frame (excluding independent wheels) of a specific embodiment of the rail grinding trolley in this application;

[0042] Figure 14 This is a schematic top view of the frame structure in a specific embodiment of the rail grinding trolley of this application;

[0043] Figure 15This is a schematic side view of the frame structure in a specific embodiment of the rail grinding trolley of this application;

[0044] Figure 16 This is a schematic front view of the frame structure in a specific embodiment of the rail grinding trolley of this application;

[0045] Figure 17 This is a schematic diagram of the frame installation structure of a rail grinding trolley in a specific embodiment of this application;

[0046] Figure 18 This is a three-dimensional structural schematic diagram of a specific embodiment of the rail grinding trolley of this application;

[0047] Figure 19 This is a side view of the internal structure of a specific embodiment of the rail grinding trolley of this application;

[0048] Figure 20 This is a top view of the internal structure of a specific embodiment of the rail grinding trolley of this application;

[0049] Figure 21 This is a schematic top view of a specific embodiment of the rail grinding trolley of this application;

[0050] Figure 22 This is a perspective view of the internal structure of a specific embodiment of the rail grinding trolley of this application;

[0051] Figure 23 This is a schematic side view of a specific embodiment of the rail grinding trolley of this application;

[0052] Figure 24 This is a schematic front view of a specific embodiment of the rail grinding trolley of this application;

[0053] In the diagram: 1-Frame, 2-Grinding unit, 3-Dustproof and fireproof device, 4-Independent wheel, 101-Frame longitudinal beam, 102-Frame crossbeam, 103-Frame vertical beam, 104-Frame base plate, 105-Main beam longitudinal beam, 106-Main beam vertical beam, 107-Traction nose cover, 108-Traction nose seat, 109-Main beam base plate, 110-End beam, 111-Inner reinforcing plate, 112-Wheel mounting plate, 113-Outer reinforcing plate, 114-End beam stiffener, 115-Unit mounting seat, 116-First boss, 117-First groove, 118-Second boss, 119-Second groove, 301-Door panel, 302-Adapter plate, 30 3-Dust collection vent, 304-Intermediate dust collection vent, 305-Intermediate cover plate, 306-Side door upper plate, 307-Side door lifting drive mechanism, 308-Side door, 309-Side fireproof curtain, 310-End upper plate, 311-End fireproof curtain, 312-Fireproof curtain, 313-Intermediate upper partition, 314-Intermediate lower partition, 315-Intermediate partition lifting drive mechanism, 316-First drive mechanism tailstock, 317-First drive mechanism rod seat, 318-Tilting drive mechanism rod seat, 319-Side door tilting drive mechanism, 320-Tilting drive mechanism tailstock, 321-Side door pivot seat, 322-Anti-detachment mechanism, 323- U-shaped shackle, 324-locking bolt, 325-first sliding rod seat, 326-sliding rod, 327-second sliding rod seat, 328-third sliding rod seat, 329-fourth sliding rod seat, 330-quick connection buckle, 331-fire curtain pin, 332-ring pin, 333-first door panel pivot seat, 334-second door panel pivot seat, 335-second drive mechanism rod seat, 336-second drive mechanism tail seat, 100-rail grinding trolley. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] As attached Figure 1 To be continued Figure 24 The accompanying drawings illustrate specific embodiments of the dustproof and fireproof device and rail grinding trolley of this application. The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this application.

[0056] Example 1

[0057] As attached Figure 1 To be continued Figure 11As shown, an embodiment of the dustproof and fireproof device of this application is installed on a vehicle frame 1, specifically including: a top panel assembly, a side panel assembly, an internal middle panel assembly, front and rear panel assemblies, a side door lifting drive mechanism 307, and a side door tilting drive mechanism 319. The top panel assembly is fixedly connected to the upper part of the main beam longitudinal beam 105 and the grinding device frame. The side panel assembly is hinged to the side of the grinding device frame. The internal middle panel assembly is connected to the lower part of the main beam longitudinal beam 105, and the front and rear panel assemblies are connected to the lower part of the end beam 110. The side door lifting drive mechanism 307 is connected to the side panel assembly, and the side door tilting drive mechanism 319 is connected to the end beam 110 and the side panel assembly. As a typical embodiment of this application, the side door lifting drive mechanism 307 can specifically be a lifting cylinder, and the side door tilting drive mechanism 319 can specifically be a gas spring.

[0058] As attached Figure 12 To be continued Figure 17 As shown, the frame 1 specifically includes: a main beam assembly, a grinding device frame assembly, an end beam assembly, and a running gear assembly. The end beam assembly is located on the frame 1 along the working direction (i.e., longitudinally, as shown in the attached diagram). Figure 12 The direction indicated by L in the middle is shown in the attached diagram. Figure 12 The direction indicated by W is transverse, and the direction indicated by H is vertical. The main beam assembly is installed above the center of the end beam assembly, and the grinding device frame assembly is installed on both sides of the end beam assembly along the transverse direction. The traveling assembly is installed below the end beam assembly and is symmetrically distributed along the transverse direction. The grinding device frame assembly and the end beam assembly are positioned together by the first boss 116 and the first groove 117.

[0059] The grinding device frame assembly further includes frame longitudinal beams 101, frame transverse beams 102, frame vertical beams 103, and a frame base plate 104. Two frame longitudinal beams 101 and two frame transverse beams 102 are vertically connected to form the frame body, and the four corners of the frame body are connected to the top of the frame vertical beams 103. The frame base plate 104 is installed at the bottom of the frame vertical beams 103, and a first boss 116 for positioning is provided on the frame base plate 104.

[0060] The grinding device frame assembly also includes a unit mounting base 115, which is located inside the frame longitudinal beam 101. The installation distance between the unit mounting bases 115 is adjusted according to the number and width of the grinding units 2.

[0061] The end beam assembly further includes an end beam 110 and an end beam stiffener 114. The end beam 110 is provided with a first groove 117 that mates with the first boss 116, and the end beam stiffener 114 is located below the end beam 110.

[0062] The main beam assembly also includes a main beam vertical beam 106 and a main beam base plate 109. The main beam longitudinal beam 105 is connected to the main beam vertical beam 106 at both ends along the longitudinal direction. The main beam base plate 109 is located at the bottom of the main beam vertical beam 106, and a second boss 118 for positioning is provided at the bottom of the main beam base plate 109. A second groove 119 corresponding to and engaging with the second boss 118 is provided on the end beam 110.

[0063] The main beam assembly also includes a traction nose cover 107 and a traction nose seat 108, which are disposed on the front side of the main beam vertical beam 106, with the traction nose cover 107 disposed on the traction nose seat 108.

[0064] The running gear further includes a wheel mounting plate 112, an inner reinforcing plate 111, and an outer reinforcing plate 113. The inner reinforcing plate 111 and the outer reinforcing plate 113 are respectively disposed on both sides of the wheel mounting plate 112 in the transverse direction, and an independent wheel 4 is mounted on the wheel mounting plate 112.

[0065] The top panel assembly further includes a door panel 301, a transition plate 302, a dust collection vent 303, a central dust collection port 304, and a central cover plate 305, all mounted on the frame 1. The central dust collection port 304 is located on both sides of the central cover plate 305 along its longitudinal direction. The dust collection vent 303, the transition plate 302, and the door panel 301 are symmetrically arranged from the inside out on both sides of the central dust collection port 304 and the central cover plate 305 along its transverse direction. One side of the transition plate 302 is hinged to one side of the door panel 301, and the other side of the door panel 301 is connected to the frame 1. The door panel 301 can be flipped upwards and opened.

[0066] The side panel assembly further includes a side door upper panel 306, a side door 308, and a side fireproof soft curtain 309. The side door upper panel 306 is connected to the frame 1, and the side door 308 and the side fireproof soft curtain 309 are installed below the side door upper panel 306 in sequence.

[0067] The internal intermediate plate assembly further includes an upper intermediate partition 313 and a lower intermediate partition 314. The upper intermediate partition 313 is installed below the main beam longitudinal beam 105, and the lower intermediate partition 314 is installed below the upper intermediate partition 313.

[0068] The front and rear panel assemblies further include an end upper panel 310 and an end fireproof soft curtain 311. The end upper panel 310 is installed on the lower edge of the front and rear ends of the frame 1, and the end fireproof soft curtain 311 is installed below the end upper panel 310.

[0069] A first door panel pivot seat 333 is provided on the door panel 301, and a second door panel pivot seat 334 is provided on the adapter plate 302. One side of the door panel 301 is connected to the adapter plate 302 through the first door panel pivot seat 333 and the second door panel pivot seat 334, and the door panel 301 can rotate around the adapter plate 302. The side door upper panel 306 is connected to the vehicle frame 1 through the side door pivot seat 321 and can rotate around the vehicle frame 1. The side door flipping drive mechanism 319 is installed on the front and rear sides of the side door upper panel 306. One end of the side door flipping drive mechanism 319 is connected to the side door upper panel 306 through the flipping drive mechanism rod seat 318, and the other end of the side door flipping drive mechanism 319 is connected to the vehicle frame 1 through the flipping drive mechanism tail seat 320. In this embodiment, the dustproof and fireproof device 3 allows the side door and the upper cover to open and close at a large angle, which can increase the maintenance space, reduce maintenance time, and reduce maintenance difficulty.

[0070] One end of the side door lifting drive mechanism 307 is mounted on the upper plate 306 of the side door via the tailstock 316 of the first drive mechanism, and the other end is mounted on the side door 308 via the rod seat 317 of the first drive mechanism. The side door lifting drive mechanism 307 can drive the side door 308 to rise and fall.

[0071] A sliding rod 326 is installed on the back of the side door 308. Four sliding rod seats are mounted on the sliding rod 326. The first sliding rod seat 325 and the third sliding rod seat 328 are mounted on the upper panel 306 of the side door, while the second sliding rod seat 327 and the fourth sliding rod seat 329 are mounted on the side door 308. The sliding rod 326 is fixedly connected to the first sliding rod seat 325 and the third sliding rod seat 328 and cannot slide relative to each other. The sliding rod 326 forms a sliding pair with the second sliding rod seat 327 and the fourth sliding rod seat 329, allowing relative sliding. The side fireproof curtain 309 and the end fireproof curtain 311 are made of flame-retardant fiber materials (such as high-temperature flame-retardant polyurethane, fiberglass, etc.) and are both fixed by fireproof curtain pins 331 and annular pins 332.

[0072] The dust and fire prevention device 3 also includes a middle partition lifting drive mechanism 315 disposed between the internal intermediate plate assembly and the main beam longitudinal beam 105. One end of the middle partition lifting drive mechanism 315 is mounted on the main beam longitudinal beam 105 of the frame 1 via a second drive mechanism tailstock 336, and the other end is mounted on the middle upper partition 313 via a second drive mechanism rod seat 335. The middle partition lifting drive mechanism 315 can drive the middle upper partition 313 to rise and fall. As a typical embodiment of this application, the middle partition lifting drive mechanism 315 can specifically adopt a lifting cylinder.

[0073] An anti-detachment mechanism 322 is also installed between the upper intermediate partition 313 and the frame 1 to prevent the upper intermediate partition 313 from falling off. The lower intermediate partition 314 is connected to the upper intermediate partition 313 by a U-shaped shackle 323 and a locking bolt 324. As a typical embodiment of this application, the anti-detachment mechanism 322 can specifically be an anti-detachment steel wire rope.

[0074] Fire curtains 312 are installed below the side door 308, the end upper plate 310, and the middle lower partition 314. The fire curtains 312 have a certain degree of flexibility to reduce the severity of accidental collisions. The fire curtains 312 are connected via quick-connect buckles 330 and consist of several individual fire-blocking plates. The fire-blocking plates can be made of impact-resistant stainless steel. Damaged fire-blocking plates can be replaced individually, significantly reducing the workload and cost of maintaining the fire curtains 312 and extending their service life. The fire-blocking plates block sparks generated during rail grinding, preventing sparks and high-temperature iron filings from escaping and effectively reducing the risk of fire. A soft curtain on the outside of the fire-blocking plates adds another layer of protection, further increasing the spark blocking rate. The soft curtain improves overall sealing, resulting in better dust collection and extraction. The fire-blocking device can also be fully opened for easy inspection and replacement of parts. To achieve a good fire-blocking effect, the fire-blocking device needs to be arranged below the rail surface. This would cause interference between the fire-blocking device and the turnout when the rail grinding car passes through the turnout area. This specific embodiment employs an automatic lifting function for the fire-blocking device. The fire-blocking devices on both sides and in the middle can be automatically raised. When the grinding car passes through the turnout area, the fire-blocking device can be automatically raised without raising the grinding device, thus improving the passing efficiency of the grinding car. The multi-dust collection port design (in this embodiment, two intermediate dust collection ports 304 and six dust collection air ports 303 are used, with one dust collection air port 303 above each grinding unit 2) effectively reduces sparks and dust escape, provides targeted dust removal and cooling in multiple areas, increases the internal dust removal airflow velocity, improves the dust collection rate, and reduces the internal temperature of the grinding device.

[0075] Example 2

[0076] As attached Figure 18 To be continued Figure 24 As shown, an embodiment of the rail grinding trolley 100 of this application specifically includes:

[0077] Frame 1;

[0078] Dustproof and fireproof device 3 installed on the vehicle frame 1 as described in Example 1;

[0079] The grinding unit 2 is installed on the frame 1 and located inside the dustproof and fireproof device 3.

[0080] The rail grinding trolley 100 has lifting and traveling functions, while the grinding unit 2 has lateral movement, downward pressing, and deflection functions. These functional components interact with the entire vehicle via fasteners, cables, hydraulic lines, and pneumatic lines. The operation control software is compiled and stored in the vehicle's network control system. The rail grinding trolley 100 is installed under the vehicle. In non-operating mode, it is suspended from the vehicle body by locking pins. In operating mode, it moves synchronously with the vehicle via a traction column installed under the vehicle body. After stopping operation, the rail grinding trolley 100 can be lifted and locked using a lifting cylinder. When the rail grinding vehicle is operating on the rails, the rail grinding trolley 100 rests on the rails to perform rail grinding operations. The electrical and control systems of the grinding vehicle can control the power supply and operation of the rail grinding trolley 100.

[0081] It should be noted that, in the specific embodiments of this application, the hydraulic cylinder can be replaced by an electric cylinder or a pneumatic cylinder, and the pneumatic cylinder can also be replaced by a hydraulic cylinder or an electric cylinder.

[0082] In the description of this application, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly set on the other element or indirectly set on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0083] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0084] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0085] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0086] By implementing the dustproof and fireproof device and rail grinding trolley described in the specific embodiments of this application, the following technical effects can be achieved:

[0087] (1) The dustproof and fireproof device and rail grinding trolley described in the specific embodiments of this application adopt a multi-dust collection port design, multi-area targeted dust removal and cooling, which improves the overall airtightness, reduces the escape of sparks and dust, increases the internal dust removal airflow rate, improves the dust collection rate, and reduces the internal temperature of the grinding device; at the same time, an impact-resistant stainless steel fire curtain is added inside, and the fire curtain is made of high-temperature flame-retardant polyurethane and fiberglass materials. By using better heat insulation materials, the service life of the fire curtain can be extended and the fire risk can be reduced.

[0088] (2) The dustproof and fireproof device and rail grinding trolley described in the specific embodiments of this application can be opened and closed at a large angle with the side doors and the top cover, which increases the maintenance space, reduces maintenance time, and reduces maintenance difficulty; the fire curtain adopts a split structure design, which is composed of multiple independent small baffles, which can be quickly disassembled and installed, and the damaged fire curtain small baffles can be replaced separately, making maintenance more convenient and reducing maintenance costs;

[0089] (3) The dustproof and fireproof device and rail grinding trolley described in the specific embodiments of this application have a certain degree of deflection of the fire-blocking device, which can reduce the degree of harm to both parties in an accidental collision; at the same time, the fire-blocking devices on both sides and in the middle can be automatically lifted, without lifting the grinding device as a whole, and the grinding device can be passed through the turnout area by lifting the fire-blocking device alone, which improves the passability of the grinding device.

[0090] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0091] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has been disclosed above with reference to preferred embodiments, it is not intended to limit this application. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this application using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the spirit and technical essence of this application. Therefore, any simple modifications, equivalent substitutions, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solutions of this application shall still fall within the protection scope of the technical solutions of this application.

Claims

1. A dustproof and fireproof device, characterized in that, Mounted on a frame (1), the frame (1) includes a main beam longitudinal beam (105), a main beam vertical beam (106), a grinding device frame, and an end beam (110); the two ends of the main beam longitudinal beam (105) are connected to the main beam vertical beam (106) along the longitudinal direction, the grinding device frame is mounted on both sides of the end beam (110) along the transverse direction, and the end beam (110) is located at the lower part of the main beam vertical beam (106); the device includes: a top plate assembly, a side panel assembly, an internal middle plate assembly, a front and rear plate assembly, and a side door lifting drive. Mechanism (307) and side door flipping drive mechanism (319); the top plate assembly is fixedly connected to the upper part of the main beam longitudinal beam (105) and the grinding device frame; the side panel assembly is hinged to the side of the grinding device frame; the inner middle plate assembly is connected to the lower part of the main beam longitudinal beam (105), and the front and rear plate assemblies are connected to the lower part of the end beam (110); the side door lifting drive mechanism (307) is connected to the side panel assembly, and the side door flipping drive mechanism (319) is connected to the end beam (110) and the side panel assembly.

2. The dustproof and fireproof device according to claim 1, characterized in that: The top panel assembly includes a door panel (301), a transition plate (302), a dust collection vent (303), a middle dust collection port (304), and a middle cover plate (305) mounted on the frame (1). The middle dust collection port (304) is located on both sides of the middle cover plate (305) along the longitudinal direction. The dust collection vent (303), the transition plate (302), and the door panel (301) are symmetrically arranged from the inside to the outside on both sides of the middle dust collection port (304) and the middle cover plate (305) along the transverse direction. One side of the transition plate (302) is hinged to one side of the door panel (301), and the other side of the door panel (301) is connected to the frame (1).

3. The dustproof and fireproof device according to claim 2, characterized in that: The side panel assembly includes a side door upper panel (306), a side door (308), and a side fireproof soft curtain (309). The side door upper panel (306) is connected to the vehicle frame (1), and the side door (308) and the side fireproof soft curtain (309) are installed sequentially below the side door upper panel (306).

4. The dustproof and fireproof device according to claim 3, characterized in that: The internal intermediate plate assembly includes an upper intermediate partition (313) and a lower intermediate partition (314). The upper intermediate partition (313) is installed below the main beam longitudinal beam (105), and the lower intermediate partition (314) is installed below the upper intermediate partition (313).

5. The dustproof and fireproof device according to claim 4, characterized in that: The front and rear panel assembly includes an end upper panel (310) and an end fireproof soft curtain (311). The end upper panel (310) is installed on the lower edge of the front and rear ends of the frame (1), and the end fireproof soft curtain (311) is installed below the end upper panel (310).

6. The dustproof and fireproof device according to claim 5, characterized in that: The door panel (301) is provided with a first door panel pivot seat (333), and the adapter plate (302) is provided with a second door panel pivot seat (334); one side of the door panel (301) is connected to the adapter plate (302) through the first door panel pivot seat (333) and the second door panel pivot seat (334), and the door panel (301) can rotate around the adapter plate (302).

7. The dustproof and fireproof device according to claim 5 or 6, characterized in that: The side door upper plate (306) is connected to the frame (1) through the side door pivot seat (321) and can rotate around the frame (1); the side door flipping drive mechanism (319) is installed on the front and rear sides of the side door upper plate (306), one end of the side door flipping drive mechanism (319) is connected to the side door upper plate (306) through the flipping drive mechanism rod seat (318), and the other end of the side door flipping drive mechanism (319) is connected to the frame (1) through the flipping drive mechanism tail seat (320).

8. The dustproof and fireproof device according to claim 7, characterized in that: One end of the side door lifting drive mechanism (307) is mounted on the upper plate (306) of the side door through the tailstock (316) of the first drive mechanism, and the other end of the side door lifting drive mechanism (307) is mounted on the side door (308) through the rod seat (317) of the first drive mechanism. The side door lifting drive mechanism (307) can drive the side door (308) to rise and fall.

9. The dustproof and fireproof device according to claim 5, 6 or 8, characterized in that: A sliding rod (326) is installed on the back of the side door (308). Four sliding rod seats are installed on the sliding rod (326). The first sliding rod seat (325) and the third sliding rod seat (328) are installed on the upper plate (306) of the side door, and the second sliding rod seat (327) and the fourth sliding rod seat (329) are installed on the side door (308). The sliding rod (326) is fixedly connected to the first sliding rod seat (325) and the third sliding rod seat (328). The sliding rod (326) forms a translation pair with the second sliding rod seat (327) and the fourth sliding rod seat (329).

10. The dustproof and fireproof device according to claim 9, characterized in that: The side fireproof curtain (309) and the end fireproof curtain (311) are both fixed by fireproof curtain pin (331) and ring pin (332).

11. The dustproof and fireproof device according to claim 5, 6, 8 or 10, characterized in that: It also includes a middle partition lifting drive mechanism (315) disposed between the internal middle plate assembly and the main beam longitudinal beam (105).

12. The dustproof and fireproof device according to claim 11, characterized in that: One end of the middle partition lifting drive mechanism (315) is mounted on the main beam longitudinal beam (105) of the frame (1) via the second drive mechanism tail seat (336), and the other end is mounted on the middle upper partition (313) via the second drive mechanism rod seat (335); the middle partition lifting drive mechanism (315) can drive the middle upper partition (313) to rise and fall.

13. The dustproof and fireproof device according to claim 5, 6, 8, 10 or 12, characterized in that: An anti-detachment mechanism (322) is also installed between the middle upper partition (313) and the frame (1) to prevent the middle upper partition (313) from falling off.

14. The dustproof and fireproof device according to claim 13, characterized in that: The lower intermediate partition (314) is connected to the upper intermediate partition (313) via a U-shaped shackle (323) and a locking bolt (324).

15. The dustproof and fireproof device according to claim 5, 6, 8, 10, 12 or 14, characterized in that: Fire curtains (312) are installed below the side door (308), the end upper plate (310) and the middle lower partition (314). The fire curtains (312) are connected by quick-connect buckles (330) and are composed of several individual fire-blocking plates.

16. A rail grinding trolley, characterized in that, include: The dustproof and fireproof device (3) as described in any one of claims 1 to 15.

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