Steel rail polishing device

Abstract

The invention discloses a steel rail polishing device which comprises a frame. The fireproof and dustproof device is arranged on the frame; and the polishing unit is arranged on the frame and located in the fireproof and dustproof device. The frame comprises a main beam assembly and grinding device frame assemblies arranged on the two sides of the main beam assembly in the transverse direction. The grinding unit comprises a grinding motor, a grinding motor back plate arranged on the back of the grinding motor, a vertical guide column movably connected with the grinding motor, a vertical guide column top plate connected to the upper end and the lower end of the vertical guide column, a vertical guide column bottom plate connected to the upper end and the lower end of the vertical guide column correspondingly, and a fireproof heat insulation check curtain. The technical problems that an existing device is low in grinding efficiency and poor in maintainability, and the interior of the grinding device is too hot due to high temperature can be solved.

Description

Technical Field

[0001] This application relates to the technical field of railway engineering machinery, and particularly to an efficient grinding device applied to rail grinding operations. Background Art

[0002] The grinding device is the actuator for rail grinding operations. As a key component of the rail grinding train, it has an important position and role on the grinding train. At the same time, the quality, efficiency of the rail grinding operation, and the coverage of the rail grinding angle are all determined by the grinding device. The rail grinding device generally consists of multiple grinding units. The grinding wheels of the grinding units directly act on the rails to achieve the grinding operation, and the number of grinding units directly determines the grinding efficiency of the grinding device. In the prior art, the following main forms of grinding devices are used in rail grinding vehicles at home and abroad:

[0003] The first is the national railway grinding trolley, which integrates 4 grinding units in a single trolley. There are 2 grinding motors arranged symmetrically on each grinding unit.

[0004] The second is the second-generation subway grinding trolley, which integrates 10 grinding motors in a single trolley and is symmetrically distributed. Each grinding motor is made into a single grinding unit.

[0005] In the prior art, the following main documents are related to this application:

[0006] Document 1 is a Chinese utility model patent with the application number CN220908045U, applied by Zhuzhou Times Electronic Technology Co., Ltd. on July 28, 2023, and announced on May 7, 2024. This utility model discloses a rail grinding device, including: a vehicle frame, a storage battery, a dust and chip blocking device, a frame body, a control system, a lateral movement driving mechanism, a first lateral movement component, a second lateral movement component, and a grinding unit. A wheel set for the whole vehicle to travel and support is arranged below the vehicle frame. The storage battery, the control system, and the frame body are all arranged above the vehicle frame. The grinding unit is arranged inside the frame body, and the dust and chip blocking device is arranged on the frame body. The first lateral movement component and the second lateral movement component are arranged between the vehicle frame and the grinding unit, and the first lateral movement component and the second lateral movement component form a lateral movement pair. The lateral movement driving mechanism is arranged between the frame body and the grinding unit, and the grinding unit can be driven to move laterally relative to the vehicle frame through the lateral movement driving mechanism. This application can solve the technical problem that the existing equipment cannot be simple in structure, low in cost, and light in weight, while having a large grinding power, high operation efficiency, high automation degree, and being able to achieve short-distance reciprocating grinding. This utility model is a small rail grinding device and can only perform short-distance and small workload grinding.

[0007] Document 2 is a Chinese invention application filed by Golden Eagle Heavy Engineering Machinery Co., Ltd. and China National Railway Group Co., Ltd. on August 12, 2022, and published on September 23, 2022, with the publication number CN115094693A. This invention discloses a rail grinding device, including a transverse movement mechanism, a deflection mechanism, a lifting mechanism, and a grinding mechanism; the grinding mechanism includes a grinding wheel, and the circumferential surface of the grinding wheel can contact the rail head and move longitudinally along the rail along the running direction of the rail grinding vehicle, so as to grind the surface of the rail head; the lifting mechanism is used to drive the grinding mechanism to lift and lower; the transverse movement mechanism is used to drive the lifting mechanism to rotate, so that the grinding wheel generates a lateral displacement relative to the rail; the deflection mechanism is used to drive the grinding mechanism to rotate, so that the grinding wheel generates an angular change relative to the rail. This invention adopts the tangential grinding method of the grinding wheel, with low grinding efficiency and a single application scenario.

[0008] Document 3 is a Chinese invention application filed by Southwest Jiaotong University Railway Development Co., Ltd. in Sichuan and Chengdu Luzhian Technology Co., Ltd. on September 19, 2022, and published on December 2, 2022, with the publication number CN115418899A. This invention discloses a high-speed grinding trolley for urban rail transit rails, including a grinding frame for installing and fixing various components that realize the grinding function. The first lifting mechanism is respectively connected to the vehicle body and the grinding frame, and is used to realize the lifting and lowering of the grinding frame and provide a pressing force. This invention enables the grinding beam to be lifted and lowered quickly and reliably through the second lifting mechanism; realizes the precise adjustment and wide coverage of the grinding position of the rail surface through the grinding angle adjustment mechanism; realizes the rapid rotation and replacement of the grinding stone group through the rotation mechanism, and locks it after rotation to ensure the stability of the working state of the grinding beam; realizes the lifting and lowering of the grinding frame through the symmetrically arranged fourth telescopic member, avoiding problems such as device failure and uncontrollable state caused by asynchronous operation during lifting and lowering; through the cooperation of the suspension assembly and the suspension shaft, the lifted grinding frame is stably placed during high-speed driving, avoiding the grinding frame falling on the rail or other dangerous situations when the lifting device fails after lifting. This invention adopts the passive grinding method of the grinding wheel, without a power source input to the grinding wheel, and the grinding efficiency is not high.

[0009] In summary, there is an urgent need to propose an efficient rail grinding device to solve the technical problems of low grinding efficiency, low maintainability, and high temperature inside the grinding trolley of the existing device. Summary of the Invention

[0010] In view of this, the purpose of this application is to provide a rail grinding device to solve the technical problems of low grinding efficiency, poor maintainability, and high temperature inside the grinding device of the existing device.

[0011] In order to achieve the above invention purpose, this application specifically provides a technical implementation solution of a rail grinding device, including:

[0012] Frame

[0013] Fire and dust prevention device provided on the frame

[0014] Grinding unit provided on the frame and located inside the fire and dust prevention device

[0015] The frame includes a main beam assembly and grinding device frame assemblies provided on both lateral sides of the main beam assembly

[0016] The grinding unit includes a grinding motor, a grinding motor back plate provided on the back of the grinding motor, a vertical guide post movably connected to the grinding motor, a vertical guide post top plate and a vertical guide post bottom plate respectively connected to the upper and lower ends of the vertical guide post, and a fire and heat insulation curtain

[0017] The fire and dust prevention device includes an internal middle plate assembly, side plate assemblies, a top plate assembly, and a dust collection air inlet and a middle dust collection port provided on the top plate assembly. The grinding unit is provided between the internal middle plate assembly, the side plate assemblies and the top plate assembly

[0018] The upper end of the grinding motor back plate is installed on the vertical guide post top plate, and the lower end is installed on the vertical guide post bottom plate. One end of the fire and heat insulation curtain is installed above the grinding motor back plate, and the other end is installed on the inner side frame longitudinal beam of the grinding device frame. The area separated by the grinding motor back plate, the fire and heat insulation curtain and the internal middle plate assembly is the high temperature area, and the middle dust collection port is located above the high temperature area. The area separated by the grinding motor back plate, the fire and heat insulation curtain, the side plate assemblies and the top plate assembly is the low temperature area, and the dust collection air inlet is located above the low temperature area

[0019] Further, the frame further includes end beam assemblies and traveling assemblies. The end beam assemblies are provided at the front and rear ends of the frame along the operation direction. The main beam assembly is installed in the middle above the end beam assemblies, and the traveling assemblies are installed below the end beam assemblies and are symmetrically distributed laterally. The positioning between the grinding device frame assemblies and the end beam assemblies is achieved through a first boss and a first groove

[0020] Further, the grinding device frame assembly further includes frame cross beams, frame vertical beams and a frame bottom plate. Two frame longitudinal beams are perpendicularly connected to two frame cross beams to form a frame body. The four corners of the frame body are connected to the tops of the frame vertical beams. The frame bottom plate is installed at the bottom of the frame vertical beams, and a first boss for positioning is provided on the frame bottom plate

[0021] Further, the grinding device frame assembly further includes unit mounting seats. The unit mounting seats are provided on the inner sides of the frame longitudinal beams, and the mounting distance between the unit mounting seats is adjusted according to the number and width of the grinding units

[0022] Furthermore, the end beam assembly includes an end beam and end beam stiffeners. A first groove that mates with the first boss is provided on the end beam, and the end beam stiffeners are disposed below the end beam.

[0023] Furthermore, the main beam assembly includes main beam longitudinal beams, main beam vertical beams, and a main beam bottom plate. The two longitudinal ends of the main beam longitudinal beams are connected to the main beam vertical beams. The main beam bottom plate is disposed at the bottom of the main beam vertical beams, and a second boss for positioning is provided at the bottom of the main beam bottom plate. A second groove corresponding to and mating with the second boss is provided on the end beam.

[0024] Furthermore, the main beam assembly further includes a traction nose cover and a traction nose seat. The traction nose cover and the traction nose seat are disposed on the front side of the main beam vertical beams, and the traction nose cover is disposed on the traction nose seat.

[0025] Furthermore, the running assembly includes a wheel mounting plate, an inner reinforcement plate, and an outer reinforcement plate. The inner reinforcement plate and the outer reinforcement plate are respectively disposed on both sides of the wheel mounting plate in the transverse direction, and independent wheels are mounted on the wheel mounting plate.

[0026] Furthermore, the fire and dust prevention device further includes a front and rear plate assembly, a side door lifting drive mechanism, and a side door flipping drive mechanism. The top plate assembly is fixedly connected above the main beam longitudinal beams and the grinding device frame. The side panel assembly is hinged to the side of the grinding device frame. The internal intermediate plate assembly is connected below the main beam longitudinal beams. The front and rear plate assembly is connected below the end beam. 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 beam and the side panel assembly.

[0027] Furthermore, the top plate assembly includes a door panel, an adapter plate, a dust collection air vent, an intermediate dust collection port, and an intermediate cover plate mounted on the vehicle frame. The intermediate dust collection port is located on both sides of the intermediate cover plate in the longitudinal direction. The dust collection air vent, the adapter plate, and the door panel are symmetrically arranged on both sides of the intermediate dust collection port and the intermediate cover plate in the transverse direction from inside to outside in sequence. One side of the adapter plate is hinged to one side of the door panel, and the other side of the door panel is connected to the vehicle frame, and the door panel can be flipped upward and opened.

[0028] Furthermore, the side panel assembly includes a side door upper plate, a side door, and a side fireproof soft curtain. The side door upper plate is connected to the vehicle frame, and the side door and the side fireproof soft curtain are sequentially installed below the side door upper plate.

[0029] Furthermore, the internal intermediate plate assembly includes an intermediate upper partition plate and an intermediate lower partition plate. The intermediate upper partition plate is installed below the main beam longitudinal beams, and the intermediate lower partition plate is installed below the intermediate upper partition plate.

[0030] Further, the front and rear plate assembly includes an end upper plate and an end fireproof flexible curtain. The end upper plate is installed at the lower edges of the front and rear ends of the vehicle frame, and the end fireproof flexible curtain is installed below the end upper plate.

[0031] Further, a first door panel rotating shaft seat is provided on the door panel, and a second door panel rotating shaft seat is provided on the adapter plate. One side of the door panel is connected to the adapter plate through the first door panel rotating shaft seat and the second door panel rotating shaft seat, and the door panel can rotate around the adapter plate.

[0032] Further, the side door upper plate is connected to the vehicle frame through a side door rotating shaft seat and can rotate around the vehicle frame. The side door flipping drive mechanism is installed on the front and rear sides of the side door upper plate. One end of the side door flipping drive mechanism is connected to the side door upper plate through a flipping drive mechanism rod seat, and the other end of the side door flipping drive mechanism is connected to the vehicle frame through a flipping drive mechanism tail seat.

[0033] Further, one end of the side door lifting drive mechanism is installed on the side door upper plate through a first drive mechanism tail seat, and the other end is installed on the side door through a first drive mechanism rod seat. The side door lifting drive mechanism can drive the side door to rise and fall.

[0034] Further, a sliding rod is installed on the back of the side door, and 4 sliding rod seats are installed on the sliding rod. Among them, the first sliding rod seat and the third sliding rod seat are installed on the side door upper plate, and the second sliding rod seat and the fourth sliding rod seat are installed on the side door. The sliding rod is fixedly connected to the first sliding rod seat and the third sliding rod seat, and a translation pair is formed between the sliding rod and the second sliding rod seat and the fourth sliding rod seat.

[0035] Further, both the side fireproof flexible curtain and the end fireproof flexible curtain are fixed through fireproof curtain pin shafts and ring pins.

[0036] Further, the fireproof and dustproof device further includes an intermediate partition lifting drive mechanism provided between the internal intermediate plate assembly and the main beam longitudinal beam.

[0037] Further, one end of the intermediate partition lifting drive mechanism is installed on the main beam longitudinal beam of the vehicle frame through a second drive mechanism tail seat, and the other end is installed on the intermediate upper partition through a second drive mechanism rod seat. The intermediate partition lifting drive mechanism can drive the intermediate upper partition to rise and fall.

[0038] Further, an anti - detachment mechanism is also installed between the intermediate upper partition and the vehicle frame to prevent the intermediate upper partition from falling off.

[0039] Further, the intermediate lower partition is connected to the intermediate upper partition through a U - shaped shackle and a locking bolt.

[0040] Further, a fire curtain is installed below the side door, the end upper plate and the middle lower partition board. The fire curtain is connected by quick connection buckles and is composed of several individual fire baffle plates.

[0041] Further, the grinding unit further includes a suspension assembly, a unit frame assembly, a grinding motor mounting bracket, a sliding back plate, a grinding wheel, a lifting drive mechanism and a deflection drive mechanism. The suspension assembly is connected to the vehicle frame, and the unit frame assembly is slidably connected to the suspension assembly. The grinding motor mounting bracket is hinged to the lower part of the unit frame assembly. The sliding back plate is fixed to the grinding motor, and the vertical guide post bottom plate is mounted on the grinding motor mounting bracket. The vertical guide posts are mounted on the vertical guide post bottom plate in parallel with each other, and the vertical guide post top plate is mounted above the vertical guide posts. The sliding back plate is movably sleeved on the vertical guide posts and can slide up and down along the vertical guide posts. The grinding wheel is connected to the output shaft of the grinding motor. Both ends of the lifting drive mechanism are respectively hinged to the grinding motor and the grinding motor mounting bracket. Both ends of the deflection drive mechanism are respectively hinged to the vehicle frame and the grinding motor mounting bracket.

[0042] Further, the suspension assembly includes a unit suspension plate and transverse guide posts. The unit suspension plate is mounted on the vehicle frame, and two transverse guide posts are mounted between the two unit suspension plates in parallel with each other.

[0043] Further, the unit frame assembly includes a grinding unit frame and a rotating shaft. The grinding unit frame is mounted on the transverse guide posts and can slide horizontally along the transverse guide posts. The rotating shaft is mounted on the lower part of the grinding unit frame and connects the grinding unit frame and the grinding motor mounting bracket. The grinding motor mounting bracket can rotate relative to the grinding unit frame around the rotating shaft.

[0044] Further, the rail grinding device includes two grinding motors. Four vertical guide posts are mounted on the vertical guide post bottom plate in parallel with each other in pairs. Each grinding motor is mounted on two vertical guide posts through a sliding back plate. One end of the lifting drive mechanism is mounted on the grinding motor through a lifting drive mounting seat, and the other end is mounted on the grinding motor mounting bracket through another lifting drive mounting seat. The lifting drive mechanism can drive the grinding motor to move up and down.

[0045] Further, one end of the deflection drive mechanism is mounted on the grinding motor mounting bracket through a deflection drive mounting seat, and the other end is mounted on the vehicle frame through another deflection drive mounting seat.

[0046] Further, a reinforcing plate is connected between the vertical guide post top plate and the grinding motor mounting bracket.

[0047] Further, a high-position locking assembly for the grinding motor is installed on the grinding motor mounting bracket to achieve the locking function when the grinding motor is in the high position. The high-position locking assembly for the grinding motor includes a locking plate, a fixed sliding seat, a high-position locking driving mechanism, and a locking driving mounting base. The fixed sliding seat is arranged on the vertical guide post bottom plate, and the locking driving mounting base is arranged on the grinding motor mounting bracket. The locking plate is slidably connected to the fixed sliding seat, and the high-position locking driving mechanism is arranged on the locking driving mounting base. The locking plate is connected to the movable end of the high-position locking driving mechanism through a locking pin shaft. When the grinding motor is in the high position, the movable end of the high-position locking driving mechanism extends out, driving the locking plate to slide under the back plate of the grinding motor, so as to achieve high-position locking.

[0048] Further, a deflection locking assembly for the grinding motor is also installed on the grinding motor mounting bracket to achieve the locking function when the grinding motor mounting bracket is in the zero position. The deflection locking assembly for the grinding motor includes a position detection travel switch, a deflection locking seat, and a deflection locking driving mechanism. The deflection locking seat is fixed on the grinding motor mounting bracket and can deflect along with the deflection of the grinding motor. The deflection locking driving mechanism is fixed on the grinding unit frame, and the position detection travel switch is installed on the deflection locking seat. When the grinding motor is deflected by 0 degrees, the hole formed in the deflection locking seat is in an aligned state with the deflection locking driving mechanism, and the movable end of the deflection locking driving mechanism extends into the hole, so as to achieve deflection locking, and the position detection travel switch outputs a locking-in-place signal.

[0049] Further, the transverse guide post, the grinding motor, the lifting driving mechanism, the vertical guide post, and the deflection driving mechanism are all arranged in the low-temperature area.

[0050] Further, 6 grinding units are arranged in the fire and dust prevention device, and every two grinding units are symmetrically arranged horizontally. Each grinding unit includes 2 grinding motors. A grinding wheel connection flange is installed at the shaft end of the grinding motor, and the grinding wheel is installed on the grinding wheel connection flange.

[0051] By implementing the technical solution of the rail grinding device provided in the present application, the following beneficial effects are obtained:

[0052] (1) The rail grinding device of the present application has a simple structure, high operation efficiency, and good maintainability. By adding a back plate for the grinding motor and a fireproof and heat-insulating curtain, a high-low temperature area partition can be formed inside the grinding device, so as to effectively reduce the temperature near the grinding motor and reduce the temperature near the key components;

[0053] (2) For the rail grinding device of this application, the frame that originally needed to be integrally welded is designed into multiple frame components that can be independently processed. During assembly, it is positioned through grooves and bosses. After the independent processing and welding are completed, each part is combined together through high-strength bolts, greatly reducing welding deformation and welding stress, and at the same time improving the maintainability in the later stage;

[0054] (3) For the rail grinding device of this application, the overall airtightness is improved. The multi-dust collection port design increases the internal dust removal air flow rate, improves the dust collection rate, and reduces the internal temperature of the grinding device; The side door and the upper cover plate can be opened and closed at large angles, which can increase the maintenance space, reduce the maintenance time, and lower the maintenance difficulty; The fire blocking devices (including fire blocking curtains and fire blocking soft curtains) on both sides and in the middle can be automatically lifted, improving the passability of the grinding device;

[0055] (4) For the rail grinding device of this application, the grinding motor can be independently lifted and lowered. The integral double-axis sliding back plate is adopted, which improves the lifting accuracy of the grinding motor, making it easier to ensure the accuracy of the grinding operation. At the same time, the functions of high-position locking and deflection locking of the grinding motor are added, improving the safety and stability of grinding. The open structure design effectively improves the maintenance performance of the grinding unit and the grinding motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, other embodiments can be obtained based on these drawings without creative efforts.

[0057] Figure 1 is a three-dimensional structural schematic diagram of a specific embodiment of the rail grinding device of this application;

[0058] Figure 2 is a side view of the internal structure of a specific embodiment of the rail grinding device of this application;

[0059] Figure 3 is a top view of the internal structure of a specific embodiment of the rail grinding device of this application;

[0060] Figure 4 is a schematic top view of the structure of a specific embodiment of the rail grinding device of this application;

[0061] Figure 5 is a three-dimensional view of the internal structure of a specific embodiment of the rail grinding device of this application;

[0062] Figure 6 is a schematic side view of the structure of a specific embodiment of the rail grinding device of this application;

[0063] Figure 7 It is the front view of the internal structure of a specific embodiment of the rail grinding device of the present application;

[0064] Figure 8 It is the front view of the structural schematic diagram of a specific embodiment of the rail grinding device of the present application;

[0065] Figure 9 It is the three-dimensional structural schematic diagram of the vehicle frame in a specific embodiment of the rail grinding device of the present application;

[0066] Figure 10 It is the three-dimensional structural schematic diagram of the vehicle frame (excluding independent wheels) in a specific embodiment of the rail grinding device of the present application;

[0067] Figure 11 It is the top view of the structural schematic diagram of the vehicle frame in a specific embodiment of the rail grinding device of the present application;

[0068] Figure 12 It is the side view of the structural schematic diagram of the vehicle frame in a specific embodiment of the rail grinding device of the present application;

[0069] Figure 13 It is the front view of the structural schematic diagram of the vehicle frame in a specific embodiment of the rail grinding device of the present application;

[0070] Figure 14 It is the installation structural schematic diagram of the vehicle frame in a specific embodiment of the rail grinding device of the present application;

[0071] Figure 15 It is the partial structural schematic diagram of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0072] Figure 16 It is the structural schematic diagram of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0073] Figure 17 It is the structural schematic diagram of the grinding unit in another perspective in a specific embodiment of the rail grinding device of the present application;

[0074] Figure 18 It is the structural schematic diagram of the grinding motor in a specific embodiment of the rail grinding device of the present application;

[0075] Figure 19 It is the front view of the structural schematic diagram of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0076] Figure 20 It is the side view of the structural schematic diagram of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0077] Figure 21It is the schematic back view of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0078] Figure 22 It is the schematic top view of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0079] Figure 23 It is the schematic diagram of the high-position locking device of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0080] Figure 24 It is the schematic diagram of the deflection locking device of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0081] Figure 25 It is the schematic diagram of the fire and dust prevention device in a specific embodiment of the rail grinding device of the present application;

[0082] Figure 26 It is the schematic diagram of the fire and dust prevention device in another perspective in a specific embodiment of the rail grinding device of the present application;

[0083] Figure 27 It is the schematic top view of the fire and dust prevention device in a specific embodiment of the rail grinding device of the present application;

[0084] Figure 28 It is the schematic side view of the fire and dust prevention device in a specific embodiment of the rail grinding device of the present application;

[0085] Figure 29 It is the schematic front view of the fire and dust prevention device in a specific embodiment of the rail grinding device of the present application;

[0086] Figure 30 It is the partially enlarged schematic structure of the fire and dust prevention device in a specific embodiment of the rail grinding device of the present application Figure 1 ;

[0087] Figure 31 It is the partially enlarged schematic structure of the fire and dust prevention device in a specific embodiment of the rail grinding device of the present application Figure 2 ;

[0088] Figure 32 It is the partially enlarged schematic structure of the fire and dust prevention device in a specific embodiment of the rail grinding device of the present application Figure 3 ;

[0089] Figure 33 It is the partially enlarged schematic structure of the fire and dust prevention device in a specific embodiment of the rail grinding device of the present application Figure 4 ;

[0090] Figure 34It is a schematic diagram of the partial enlarged structure of the fire and dust prevention device in a specific embodiment of the rail grinding device of the present application Figure 5 ;

[0091] Figure 35 It is a schematic diagram of the partial enlarged structure of the fire and dust prevention device in a specific embodiment of the rail grinding device of the present application Figure 6 ;

[0092] Figure 36 It is a schematic diagram of the principle of the heat insulation structure in a specific embodiment of the rail grinding device of the present application;

[0093] Figure 37 It is a schematic diagram of the structure of the heat insulation structure in a specific embodiment of the rail grinding device of the present application;

[0094] In the figure: 1 - vehicle frame, 2 - grinding unit, 3 - fire and dust prevention device, 4 - independent wheel, 101 - frame longitudinal beam, 102 - frame cross beam, 103 - frame vertical beam, 104 - frame bottom plate, 105 - main beam longitudinal beam, 106 - main beam vertical beam, 107 - towing nose cover, 108 - towing nose seat, 109 - main beam bottom plate, 110 - end beam, 111 - inner reinforcement plate, 112 - wheel mounting plate, 113 - outer reinforcement plate, 114 - end beam rib plate, 115 - unit mounting seat, 116 - first boss, 117 - first groove, 118 - second boss, 119 - second groove, 201 - unit suspension plate, 202 - transverse guide post, 203 - grinding unit frame, 204 - grinding motor, 205 - grinding motor mounting frame, 206 - rotating shaft, 207 - lifting drive mechanism, 208 - lifting drive mounting seat, 209 - reinforcement plate, 210 - high-position locking assembly for grinding motor, 211 - deflection drive mechanism, 212 - deflection drive mounting seat, 213 - deflection locking assembly for grinding motor, 214 - vertical guide post top plate, 215 - vertical guide post, 216 - sliding back plate, 217 - vertical guide post bottom plate, 218 - connecting flange, 219 - grinding wheel, 220 - fireproof and heat-insulating curtain, 221 - back plate of grinding motor, 222 - locking plate, 223 - fixed sliding seat, 224 - sliding groove, 225 - high-position locking drive mechanism, 226 - locking drive mounting base, 227 - locking pin shaft, 228 - in-place detection travel switch, 229 - deflection locking seat, 230 - deflection locking drive mechanism, 231 - upper pressing strip, 232 - lower pressing strip, 233 - hole, 234 - transverse locking connecting rod, 301 - door panel, 302 - adapter plate, 303 - dust collection air inlet, 304 - intermediate dust collection port, 305 - intermediate cover plate, 306 - upper side door plate, 307 - side door lifting drive mechanism, 308 - side door, 309 - side fireproof flexible curtain, 310 - upper end plate, 311 - end fireproof flexible curtain, 312 - fireproof curtain, 313 - intermediate upper partition plate, 314 - intermediate lower partition plate, 315 - intermediate partition plate lifting drive mechanism, 316 - tail seat of first drive mechanism, 317 - rod seat of first drive mechanism, 318 - rod seat of flipping drive mechanism, 319 - side door flipping drive mechanism, 320 - tail seat of flipping drive mechanism, 321 - side door rotating shaft seat, 322 - anti-disengagement 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 - fireproof curtain pin shaft, 332 - ring pin, 333 - first door panel rotating shaft seat, 334 - second door panel rotating shaft seat, 335 - rod seat of second drive mechanism, 336 - tail seat of second drive mechanism, 100 - rail grinding device. Detailed implementation manners

[0095] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are only a part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application.

[0096] As shown in the attached Figure 1 to the attached Figure 37 figures, specific embodiments of the rail grinding device of this application are given. The following further explains this application with reference to the accompanying drawings and specific embodiments.

[0097] As shown in the attached Figure 1 to the attached Figure 8 figures, an embodiment of the rail grinding device of this application specifically includes:

[0098] A frame 1;

[0099] A fire and dust prevention device 3 provided on the frame 1;

[0100] A grinding unit 2 provided on the frame 1 and located inside the fire and dust prevention device 3.

[0101] The frame 1 includes a main beam assembly and grinding device frame assemblies provided on both lateral sides of the main beam assembly.

[0102] As shown in the attached Figure 7 figures, the grinding unit 2 further includes a grinding motor 204, a grinding motor back plate 221 provided on the back of the grinding motor 204, a vertical guide post 215 movably connected to the grinding motor 204, vertical guide post top plates 214 and vertical guide post bottom plates 217 respectively connected to the upper and lower ends of the vertical guide post 215, and a fire and heat insulation curtain 220.

[0103] The fire and dust prevention device 3 further includes an internal intermediate plate assembly, side plate assemblies, a top plate assembly, and a dust collection air inlet 303 and an intermediate dust collection port 304 provided on the top plate assembly. The grinding unit 2 is provided between the internal intermediate plate assembly, the side plate assemblies, and the top plate assembly.

[0104] The rail grinding device 100 (usually includes more than one grinding carriage, and in this embodiment, a single grinding carriage structure is specifically introduced) has the functions of lifting and traveling, and the grinding unit 2 has the functions of transverse movement, downward pressure and deflection. The above functional components act on the whole vehicle through fasteners, cables, hydraulic pipelines, pneumatic pipelines, etc. Among them, after the operation control software is compiled, it is stored in the whole vehicle network control system. The rail grinding device 100 is installed under the whole vehicle. When it is in the non-operation state, it is suspended under the vehicle body through a locking pin; when it is in the operation state, it realizes synchronous traveling with the whole vehicle through a traction column installed under the vehicle body. After the operation stops, the rail grinding device 100 can be lifted by a lifting oil cylinder and locked. When the rail grinding vehicle travels and operates on the track, the rail grinding device 100 falls on the track and can perform the grinding operation on the rail. The electrical and control systems of the grinding vehicle can realize the power supply control and operation action execution control of the rail grinding device 100.

[0105] As shown in the attached Figure 9 to the attached Figure 14 figures, the frame 1 further includes end beam components and traveling components. The end beam components are arranged at the front and rear ends of the frame 1 along the operation direction (i.e., the longitudinal direction, such as the direction shown by L in the attached Figure 9 figures, and the direction shown by W in the attached Figure 9 figures is the transverse direction, and the direction shown by H is the vertical direction). The main beam components are installed in the middle above the end beam components, and the traveling components are installed below the end beam components and are symmetrically distributed along the transverse direction. The grinding device frame components and the end beam components are positioned through the first boss 116 and the first groove 117.

[0106] The grinding device frame components further include frame longitudinal beams 101, frame cross beams 102, frame vertical beams 103 and frame bottom plates 104. Two frame longitudinal beams 101 are vertically connected to two frame cross beams 102 to form a frame main body, and the four corners of the frame main body are connected to the tops of the frame vertical beams 103. The frame bottom plate 104 is installed at the bottom of the frame vertical beams 103, and the first boss 116 for positioning is arranged on the frame bottom plate 104.

[0107] The grinding device frame components further include unit mounting seats 115. The unit mounting seats 115 are arranged inside the frame longitudinal beams 101, and the mounting distance between the unit mounting seats 115 is adjusted according to the number and width of the grinding units 2.

[0108] The end beam components further include end beams 110 and end beam stiffeners 114. The first grooves 117 matching with the first bosses 116 are arranged on the end beams 110, and the end beam stiffeners 114 are arranged below the end beams 110.

[0109] The main beam assembly further includes a main beam vertical beam 106 and a main beam bottom plate 109. The two longitudinal ends of the main beam longitudinal beam 105 are connected to the main beam vertical beam 106. The main beam bottom plate 109 is arranged at the bottom of the main beam vertical beam 106, and a second boss 118 for positioning is arranged at the bottom of the main beam bottom plate 109. A second groove 119 corresponding to and cooperating with the second boss 118 is arranged on the end beam 110.

[0110] The main beam assembly further includes a traction nose cover 107 and a traction nose seat 108. The traction nose cover 107 and the traction nose seat 108 are arranged on the front side of the main beam vertical beam 106, and the traction nose cover 107 is arranged on the traction nose seat 108.

[0111] The running assembly 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 arranged 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.

[0112] The frame 1 adopts modular components, mainly including a main beam assembly, an end beam assembly, a frame assembly and a running assembly. The main beam assembly and the frame assembly, and the frame assembly and the end beam assembly are connected by mating grooves and bolts. All the components inside the main beam assembly, the end beam assembly and the frame assembly are connected by welding. The running assembly is welded to the end beam assembly, the axle is welded to the running assembly, and the independent wheel 4 is connected to the axle. In the specific embodiment of the present application, the frame 1 that originally needed to be integrally welded is designed into multiple modular components that can be independently processed. After independent processing and welding are completed, each part is combined together by high-strength bolts, which greatly reduces the welding deformation and welding stress, and at the same time improves the later maintainability. The modular designed frame structure reduces the processing difficulty of the frame 1, improves the universality of the components, and reduces the later maintenance cost. The frame components on both sides of the frame 1 adopt an open structure design, which increases the inspection space, facilitates the disassembly and assembly of components, and improves the maintainability of the grinding device. At the same time, the position of the unit mounting seat 115 can be adjusted according to the number of grinding heads and the form of the frame assembly, so that the frame 1 of the rail grinding device 100 is universal, and the number of grinding heads can be adjusted according to actual needs.

[0113] As shown in the attached Figure 15 to the attached Figure 22As shown in the figure, the grinding unit 2 further includes a suspension assembly, a unit frame assembly, a grinding motor mounting bracket 205, a sliding back plate 216, a grinding wheel 219, a lifting drive mechanism 207 and a deflection drive mechanism 211. As a typical embodiment of the present application, the lifting drive mechanism 207 may specifically adopt a lifting oil cylinder, and the deflection drive mechanism 211 may specifically adopt a deflection oil cylinder. The suspension assembly is connected to the vehicle frame 1, and the unit frame assembly is slidably connected to the suspension assembly. The grinding motor mounting bracket 205 is hinged to the lower part of the unit frame assembly. The sliding back plate 216 is fixed to the grinding motor 204, and the vertical guide post bottom plate 217 is mounted on the grinding motor mounting bracket 205. The vertical guide posts 215 are installed on the vertical guide post bottom plate 217 in parallel with each other, and the vertical guide post top plate 214 is installed above the vertical guide posts 215. The sliding back plate 216 is movably sleeved on the vertical guide posts 215 and can slide up and down along the vertical guide posts 215. The grinding wheel 219 is connected to the output shaft of the grinding motor 204. The two ends of the lifting drive mechanism 207 are respectively hinged to the grinding motor 204 and the grinding motor mounting bracket 205. The two ends of the deflection drive mechanism 211 are respectively hinged to the vehicle frame 1 and the grinding motor mounting bracket 205.

[0114] The suspension assembly further includes a unit suspension plate 201 and a lateral guide post 202. The unit suspension plate 201 is installed on the vehicle frame 1. Two lateral guide posts 202 are installed between the two unit suspension plates 201 in parallel with each other and are fixed at both ends by bolts. The suspension assembly is connected to the unit frame through bolts and mating grooves.

[0115] The unit frame assembly further includes a grinding unit frame 203 and a rotating shaft 206. The grinding unit frame 203 is installed on the lateral guide post 202 and can slide laterally along the lateral guide post 202. The rotating shaft 206 is installed at the lower part of the grinding unit frame 203 and connects the grinding unit frame 203 and the grinding motor mounting bracket 205. The grinding motor mounting bracket 205 can rotate relative to the grinding unit frame 203 around the rotating shaft 206. A lateral locking link 234 is provided between the unit suspension plate 201 and the grinding unit frame 203 for realizing the lateral position locking of the grinding unit 2.

[0116] The rail grinding device 100 includes two grinding motors 204. Four vertical guide posts 215 are installed on the vertical guide post bottom plate 217 in parallel with each other in pairs. Each grinding motor 204 is installed on two vertical guide posts 215 through a sliding back plate 216. One end of the lifting drive mechanism 207 is installed on the grinding motor 204 through a lifting drive mounting seat 208, and the other end is installed on the grinding motor mounting bracket 205 through another lifting drive mounting seat 208. The lifting drive mechanism 207 can drive the grinding motor 204 to move up and down.

[0117] One end of the deflection drive mechanism 211 is mounted on the grinding motor mounting bracket 205 through a deflection drive mounting base 212, and the other end is mounted on the vehicle frame 1 through another deflection drive mounting base 212. A reinforcing plate 209 is also connected between the vertical guide post top plate 214 and the grinding motor mounting bracket 205.

[0118] As shown in the Figure 23 accompanying drawings, a high-position locking assembly 210 for the grinding motor is mounted on the grinding motor mounting bracket 205 to achieve the locking function when the grinding motor 204 is in the high position. The high-position locking assembly 210 for the grinding motor includes a locking plate 222, a fixed slide base 223, a high-position locking drive mechanism 225, and a locking drive mounting base 226. The fixed slide base 223 is disposed on the vertical guide post bottom plate 217, and the locking drive mounting base 226 is disposed on the grinding motor mounting bracket 205. The locking plate 222 is slidably connected to the fixed slide base 223, and the high-position locking drive mechanism 225 is disposed on the locking drive mounting base 226. The locking plate 222 is connected to the movable end of the high-position locking drive mechanism 225 through a locking pin 227. When the grinding motor 204 is in the high position, the movable end of the high-position locking drive mechanism 225 extends out, driving the locking plate 222 to slide under the back plate 221 of the grinding motor, thereby achieving high-position locking. As a typical embodiment of the present application, the high-position locking drive mechanism 225 may specifically adopt a high-position locking oil cylinder.

[0119] As shown in the Figure 24 accompanying drawings, a deflection locking assembly 213 for the grinding motor is also mounted on the grinding motor mounting bracket 205 to achieve the locking function when the grinding motor mounting bracket 205 is in the zero position. The deflection locking assembly 213 for the grinding motor includes a position detection travel switch 228, a deflection locking seat 229, and a deflection locking drive mechanism 230. The deflection locking seat 229 is fixed to the grinding motor mounting bracket 205 and can deflect with the deflection of the grinding motor 204. The deflection locking drive mechanism 230 is fixed to the grinding unit frame 203, and the position detection travel switch 228 is mounted on the deflection locking seat 229. When the grinding motor 204 is deflected by 0 degrees, the hole 233 formed in the deflection locking seat 229 is in an aligned state with the deflection locking drive mechanism 230, and the movable end of the deflection locking drive mechanism 230 extends into the hole 233, thereby achieving deflection locking, and the position detection travel switch 228 outputs a locking-in-place signal. As a typical embodiment of the present application, the deflection locking drive mechanism 230 may specifically adopt a deflection locking oil cylinder.

[0120] As shown in the Figure 25 to the Figure 35As shown in the figure, the fire and dust prevention device 3 further includes a front and rear plate assembly, a side door lifting drive mechanism 307, and a side door flipping drive mechanism 319. The top plate assembly is fixedly connected above the main beam longitudinal beam 105 and the grinding device frame, and the side panel assembly is hinged to the side of the grinding device frame. The internal intermediate plate assembly is connected below the main beam longitudinal beam 105, and the front and rear plate assembly is connected below 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. As a typical embodiment of the present application, the side door lifting drive mechanism 307 may specifically adopt a lifting cylinder, and the side door flipping drive mechanism 319 may specifically adopt a gas spring.

[0121] The top plate assembly further includes a door panel 301, an adapter plate 302, a dust collection air outlet 303, an intermediate dust collection port 304, and an intermediate cover plate 305 installed on the vehicle frame 1. The intermediate dust collection port 304 is located on both sides of the intermediate cover plate 305 along the longitudinal direction, and the dust collection air outlet 303, the adapter plate 302, and the door panel 301 are symmetrically arranged on both sides of the intermediate dust collection port 304 and the intermediate cover plate 305 along the transverse direction from inside to outside. One side of the adapter 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 vehicle frame 1, and the door panel 301 can be turned up and opened.

[0122] The side panel assembly further includes a side door upper plate 306, a side door 308, and a side fireproof flexible curtain 309. The side door upper plate 306 is connected to the vehicle frame 1, and the side door 308 and the side fireproof flexible curtain 309 are sequentially installed below the side door upper plate 306.

[0123] The internal intermediate plate assembly further includes an intermediate upper partition plate 313 and an intermediate lower partition plate 314. The intermediate upper partition plate 313 is installed below the main beam longitudinal beam 105, and the intermediate lower partition plate 314 is installed below the intermediate upper partition plate 313.

[0124] The front and rear plate assembly further includes an end upper plate 310 and an end fireproof flexible curtain 311. The end upper plate 310 is installed on the lower edges at the front and rear ends of the vehicle frame 1, and the end fireproof flexible curtain 311 is installed below the end upper plate 310.

[0125] A first door panel rotating shaft seat 333 is provided on the door panel 301, and a second door panel rotating shaft 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 rotating shaft seat 333 and the second door panel rotating shaft seat 334, and the door panel 301 can rotate around the adapter plate 302. The side door upper plate 306 is connected to the vehicle frame 1 through the side door rotating shaft 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 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 vehicle frame 1 through the flipping drive mechanism tail seat 320. In the fire and dust prevention device 3 of this embodiment, the side door and the upper cover plate can be opened and closed at large angles, which can increase the maintenance space, reduce the maintenance time, and reduce the maintenance difficulty.

[0126] One end of the side door lifting drive mechanism 307 is installed on the side door upper plate 306 through the first drive mechanism tail seat 316, and the other end is installed on the side door 308 through the first drive mechanism rod seat 317. The side door lifting drive mechanism 307 can drive the side door 308 to rise and fall.

[0127] 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. Among them, the first sliding rod seat 325 and the third sliding rod seat 328 are installed on the side door upper plate 306, 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 and cannot slide relative to each other. A translation pair is formed between the sliding rod 326 and the second sliding rod seat 327 and the fourth sliding rod seat 329, and they can slide relative to each other. The side fireproof soft curtain 309 and the end fireproof soft curtain 311 are made of flame-retardant fiber materials (such as high-temperature resistant flame-retardant polyurethane, fiberglass, etc.) and are both fixed through the fireproof curtain pin shaft 331 and the annular pin 332.

[0128] The fire and dust prevention device 3 further includes an intermediate partition lifting drive mechanism 315 provided between the internal intermediate plate assembly and the main beam longitudinal beam 105 of the vehicle frame. One end of the intermediate partition lifting drive mechanism 315 is installed on the main beam longitudinal beam 105 of the vehicle frame 1 through the second drive mechanism tail seat 336, and the other end is installed on the intermediate upper partition 313 through the second drive mechanism rod seat 335. The intermediate partition lifting drive mechanism 315 can drive the intermediate upper partition 313 to rise and fall. As a typical embodiment of this application, the intermediate partition lifting drive mechanism 315 can specifically adopt a lifting cylinder.

[0129] An anti - detachment mechanism 322 is also installed between the middle upper partition plate 313 and the vehicle frame 1 to prevent the middle upper partition plate 313 from falling off. The middle lower partition plate 314 is connected to the middle upper partition plate 313 through a U - shaped shackle 323 and a locking bolt 324. As a typical embodiment of this application, the anti - detachment mechanism 322 can specifically adopt an anti - detachment steel wire rope.

[0130] A fire - blocking curtain 312 is installed below the side door 308, the end upper plate 310 and the middle lower partition plate 314. The fire - blocking curtain 312 has a certain deflection to reduce the harm degree of accidental collision. The fire - blocking curtain 312 is connected through quick - connecting buckles 330 and is composed of several individual fire - blocking plates. The fire - blocking plates can be made of impact - resistant stainless steel metal materials. When a fire - blocking plate is damaged, it can be replaced separately, which greatly reduces the workload and cost of maintaining the fire - blocking curtain 312 and can extend the service life of the fire - blocking curtain 312. The fire - blocking plates can block the sparks generated during the rail grinding process, prevent the sparks and high - temperature iron filings from escaping, and effectively reduce the fire risk. The soft curtain on the outer side of the fire - blocking plate further increases the blocking rate of the sparks through an additional layer of blockage on the outside. The soft curtain can improve the overall sealing performance, making the dust removal and suction effect better. At the same time, the fire - blocking device can be lifted as a whole, which is convenient for maintenance and replacement of accessories. In order to achieve a good fire - blocking effect, the fire - blocking device needs to be arranged downward below the rail surface. This will cause interference between the fire - blocking device and the turnout when the rail grinding vehicle passes through the turnout area. In a specific embodiment of this application, the fire - blocking device has an automatic lifting function. The fire - blocking devices on both sides and in the middle can be automatically lifted. When the grinding vehicle passes through the turnout area, the fire - blocking device can be automatically lifted without lifting the grinding device, improving the passing efficiency of the grinding vehicle. The design of multiple dust collection ports (in this embodiment, 2 middle dust collection ports 304 and 6 dust collection air vents 303 are adopted, and one dust collection air vent 303 is set above each grinding unit 2) can effectively reduce the escape of sparks and dust, perform targeted dust removal and temperature reduction in multiple areas, increase the internal dust removal air flow rate, improve the dust collection rate, and reduce the internal temperature of the grinding device.

[0131] There are 6 grinding units 2 arranged inside the fire and dust prevention device 3. Every two grinding units 2 are symmetrically arranged horizontally. Each grinding unit 2 includes 2 grinding motors 204. A grinding wheel connecting flange 218 is installed at the shaft end of the grinding motor 204, and a grinding wheel 219 is installed on the grinding wheel connecting flange 218. The existing rail grinding device generally consists of several grinding units. Inside each grinding unit, 1 grinding motor 204 is integrated. The grinding motor 204 drives the grinding wheel 219 to directly act on the rail to achieve the grinding operation. The number of grinding wheels 219 directly determines the grinding efficiency of the grinding device. The rail grinding device 100 described in this embodiment integrates 6 grinding units 2 in the limited space of a single-section grinding trolley. Inside each grinding unit 2, 2 grinding motors 204 are integrated, with a total of 12 grinding motors 204, and 12 grinding wheels 219 can be installed simultaneously. Multiple grinding trolleys are hung under the rail grinding vehicle, and multiple grinding trolleys cooperate with each other to carry out operations simultaneously. The increase in the number of grinding heads of a single-section grinding trolley can arrange more grinding wheels under the condition that the length of the whole vehicle remains unchanged and the number of grinding trolleys remains unchanged; or it can reduce the number of grinding trolleys under the condition that the total number of grinding wheels remains unchanged, so as to reduce the number of vehicle sections and the length of the whole vehicle. Increasing the number of grinding heads can effectively improve the grinding efficiency of the rail grinding vehicle. Reducing the length of the whole vehicle can improve the flexibility of the whole vehicle, reduce the requirements for the yard and the station, and can stop at more small stations or yards for resupply.

[0132] The grinding unit 2 adopts an integral double-shaft motor sliding backplane assembly. The grinding motor 204 can be independently lifted. By adopting an integral double-shaft sliding backplane, the processing difficulty of parts is reduced, the lifting precision of the grinding motor 204 is improved, making it easier to ensure the grinding precision. At the same time, the motor vibration is reduced, and the grinding quality is further improved. The grinding motor 204 is designed with high-position locking and deflection locking functions, which can greatly improve the grinding safety and stability. The grinding unit 2 has the functions of downward pressure, deflection, and lateral movement, and can grind the main line of the rail, effectively improving the rail grinding efficiency and grinding quality.

[0133] As shown in the appendix Figure 36 and the appendix Figure 37As shown in the figure, the upper end of the grinding motor back plate 221 is installed on the vertical guide post top plate 214, and the lower end is installed on the vertical guide post bottom plate 217. One end of the fireproof heat insulation curtain 220 is installed above the grinding motor back plate 221, and the other end is installed on the frame longitudinal beam 101 on the inner side of the grinding device frame. The area separated by the grinding motor back plate 221, the fireproof heat insulation curtain 220 and the internal intermediate plate assembly is the high-temperature area B, and the intermediate dust collection port 304 is located above the high-temperature area. The area separated by the grinding motor back plate 221, the fireproof heat insulation curtain 220, the side panel assembly and the top plate assembly is the low-temperature area A, and the dust collection air outlet 303 is located above the low-temperature area. The transverse guide post 202, the grinding motor 204, the lifting drive mechanism 207, the vertical guide post 215 and the deflection drive mechanism 211 are all arranged in the low-temperature area. The rail grinding operation will cause the inside of the grinding device to be high-temperature, and the high temperature will affect the continuous operation ability of the grinding device. In this embodiment, by arranging the fireproof heat insulation curtain 220 and the grinding motor back plate 221 behind the grinding motor 204 and designing the isolation of high and low temperature areas inside the grinding device, the sparks cannot splash into the low-temperature area, restricting the flow of high-temperature air to the motor side, and the temperature rise in the low-temperature area becomes slower, thereby improving the continuous operation ability of the grinding device. At the same time, the inside of the grinding device is divided into a high-temperature area and a low-temperature area, so that the key components (such as the grinding motor and its drive mechanism, as well as its internal bearings, coils, sealing rings and other key parts) are in the low-temperature area, which can reduce the frequency of failure of the key components due to high temperature. The specific embodiment also improves the air flow rate inside the grinding device and reduces the overall temperature inside the grinding device by increasing the number of air suction ports and dissipating heat from the high-temperature area and the low-temperature area inside the grinding device respectively.

[0134] It should be particularly noted that in the specific embodiment of the present application, the oil cylinder can be replaced by an electric cylinder or a pneumatic cylinder, and the pneumatic cylinder can also be replaced by an oil cylinder or an electric cylinder.

[0135] In the description of the present application, it should be noted that when an element is referred to as "fixed to" or "arranged on" another element, it can be directly arranged on the other element or indirectly arranged on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0136] It should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0137] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meanings of "a plurality of" and "several" are two or more, unless otherwise specifically defined.

[0138] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the implementable conditions of this application. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.

[0139] By implementing the technical solutions of the rail grinding device described in the specific embodiments of this application, the following technical effects can be achieved:

[0140] (1) The rail grinding device described in the specific embodiments of this application has a streamlined structure, high operation efficiency, and good maintainability. By adding a grinding motor back plate and a fireproof and heat-insulating curtain, a high-low temperature partition can be formed inside the grinding device, thereby effectively reducing the temperature near the grinding motor and the temperature near key components;

[0141] (2) The rail grinding device described in the specific embodiments of this application designs the frame that originally needed to be integrally welded into multiple frame components that can be independently processed. During assembly, it is positioned through grooves and bosses. After independent processing and welding are completed, each part is combined together through high-strength bolts, greatly reducing welding deformation and welding stress, and at the same time improving the maintainability in the later stage;

[0142] (3) The rail grinding device described in the specific embodiments of this application improves the overall airtightness. The design of multiple dust collection ports improves the internal dust removal air flow rate, increases the dust collection rate, and reduces the temperature inside the grinding device; The side doors and the upper covers can be opened and closed at large angles, which can increase the maintenance space, reduce maintenance time, and lower the maintenance difficulty; The fire prevention devices on both sides and in the middle can be automatically lifted, improving the passability of the grinding device;

[0143] (4) The grinding motor of the rail grinding device described in the specific embodiments of this application can be independently lifted and lowered. It adopts an integral double-axis sliding back plate, which improves the lifting accuracy of the grinding motor, making it easier to ensure the accuracy of the grinding operation. At the same time, the functions of high-position locking and deflection locking of the grinding motor are added, improving the grinding safety and stability. The open structure design effectively improves the maintenance performance of the grinding unit and the grinding motor.

[0144] In the present specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference may be made to each other.

[0145] As described above, the foregoing are only the preferred embodiments of the present application and do not impose any form of limitation on the present application. Although the present application has been disclosed above with the preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present application by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the technical solution of the present application still fall within the scope of protection of the technical solution of the present application.

Claims

1. A rail grinding device, characterized in that, Comprising: Frame (1); A fire and dust prevention device (3) provided on the frame (1); A grinding unit (2) provided on the frame (1) and located inside the fire and dust prevention device (3); The frame (1) includes a main beam assembly and grinding device frame assemblies provided on both lateral sides of the main beam assembly; The grinding unit (2) includes a grinding motor (204), a grinding motor back plate (221) provided on the back of the grinding motor (204), a vertical guide post (215) movably connected to the grinding motor (204), a vertical guide post top plate (214) and a vertical guide post bottom plate (217) respectively connected to the upper and lower ends of the vertical guide post (215), and a fire and heat insulation curtain (220); The fire and dust prevention device (3) includes an internal middle plate assembly, side plate assemblies, a top plate assembly, and a dust collection air inlet (303) and a middle dust collection port (304) provided on the top plate assembly; the grinding unit (2) is provided between the internal middle plate assembly, the side plate assemblies and the top plate assembly; The upper end of the grinding motor back plate (221) is mounted on the vertical guide post top plate (214), and the lower end is mounted on the vertical guide post bottom plate (217); one end of the fire and heat insulation curtain (220) is mounted above the grinding motor back plate (221), and the other end is mounted on the frame longitudinal beam (101) on the inner side of the grinding device frame; the area separated by the grinding motor back plate (221), the fire and heat insulation curtain (220) and the internal middle plate assembly is the high-temperature area, and the middle dust collection port (304) is located above the high-temperature area; the area separated by the grinding motor back plate (221), the fire and heat insulation curtain (220), the side plate assemblies and the top plate assembly is the low-temperature area, and the dust collection air inlet (303) is located above the low-temperature area.

2. The rail grinding device according to claim 1, wherein: The frame (1) further includes end beam assemblies and traveling assemblies, and the end beam assemblies are provided at the front and rear ends of the frame (1) along the operation direction; the main beam assembly is mounted in the middle above the end beam assemblies, and the traveling assemblies are mounted below the end beam assemblies and are symmetrically distributed along the lateral direction; the grinding device frame assemblies and the end beam assemblies are positioned by a first boss (116) and a first groove (117).

3. The rail grinding device according to claim 2, characterized in that: The grinding device frame assembly further includes frame cross beams (102), frame vertical beams (103) and a frame bottom plate (104); two frame longitudinal beams (101) are perpendicularly connected to two frame cross beams (102) to form a frame body, and the four corners of the frame body are connected to the tops of the frame vertical beams (103); the frame bottom plate (104) is mounted at the bottom of the frame vertical beams (103), and a first boss (116) for positioning is provided on the frame bottom plate (104).

4. The rail grinding device according to claim 3, characterized in that: The grinding device frame assembly further includes unit mounting seats (115), the unit mounting seats (115) are provided on the inner sides of the frame longitudinal beams (101), and the mounting distance between the unit mounting seats (115) is adjusted according to the number and width of the grinding units (2).

5. The rail grinding device according to claim 3 or 4, characterized in that: The end beam assembly includes an end beam (110) and end beam stiffeners (114). A first groove (117) that mates with the first boss (116) is provided on the end beam (110), and the end beam stiffeners (114) are disposed below the end beam (110).

6. The rail grinding device according to claim 5, characterized in that: The main beam assembly includes main beam longitudinal beams (105), main beam vertical beams (106), and a main beam bottom plate (109). The two longitudinal ends of the main beam longitudinal beams (105) are connected to the main beam vertical beams (106). The main beam bottom plate (109) is disposed at the bottom of the main beam vertical beams (106), and a second boss (118) for positioning is provided at the bottom of the main beam bottom plate (109). A second groove (119) corresponding to and mating with the second boss (118) is provided on the end beam (110).

7. The rail grinding device according to claim 6, characterized in that: The main beam assembly further includes a traction nose cover (107) and a traction nose seat (108). The traction nose cover (107) and the traction nose seat (108) are disposed on the front side of the main beam vertical beams (106), and the traction nose cover (107) is disposed on the traction nose seat (108).

8. The rail grinding device according to claim 6 or 7, characterized in that: The running assembly includes a wheel mounting plate (112), an inner reinforcement plate (111), and an outer reinforcement plate (113). The inner reinforcement plate (111) and the outer reinforcement plate (113) are respectively disposed on both sides of the wheel mounting plate (112) in the transverse direction, and independent wheels (4) are mounted on the wheel mounting plate (112).

9. The rail grinding device according to claim 8, characterized in that: The fire and dust prevention device (3) further includes a front and rear plate assembly, a side door lifting drive mechanism (307), and a side door flipping drive mechanism (319). The top plate assembly is fixedly connected above the main beam longitudinal beams (105) and the grinding device frame. The side panel assembly is hinged to the side of the grinding device frame. The inner intermediate plate assembly is connected below the main beam longitudinal beams (105), and the front and rear plate assembly is connected below 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.

10. The rail grinding device according to claim 9, characterized in that: The top plate assembly includes a door panel (301), an adapter plate (302), a dust collection air inlet (303), an intermediate dust collection port (304), and an intermediate cover plate (305) mounted on the vehicle frame (1). The intermediate dust collection port (304) is located on both sides of the intermediate cover plate (305) in the longitudinal direction. The dust collection air inlet (303), the adapter plate (302), and the door panel (301) are symmetrically disposed on both sides of the intermediate dust collection port (304) and the intermediate cover plate (305) in the transverse direction from the inside to the outside. One side of the adapter 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 vehicle frame (1), and the door panel (301) can be flipped upward and opened.

11. The rail grinding device according to claim 10, characterized in that: The side panel assembly includes a side door upper plate (306), a side door (308), and a side fireproof flexible curtain (309). The side door upper plate (306) is connected to the vehicle frame (1), and the side door (308) and the side fireproof flexible curtain (309) are sequentially mounted below the side door upper plate (306).

12. The rail grinding device according to claim 11, characterized in that: The internal intermediate plate assembly includes an upper intermediate partition plate (313) and a lower intermediate partition plate (314). The upper intermediate partition plate (313) is installed below the main beam longitudinal beam (105), and the lower intermediate partition plate (314) is installed below the upper intermediate partition plate (313).

13. The rail grinding device according to claim 12, characterized in that: The front and rear plate assembly includes an end upper plate (310) and an end fireproof flexible curtain (311). The end upper plate (310) is installed at the lower edges of the front and rear ends of the vehicle frame (1), and the end fireproof flexible curtain (311) is installed below the end upper plate (310).

14. The rail grinding device according to claim 13, wherein: A first door panel rotating shaft seat (333) is provided on the door panel (301), and a second door panel rotating shaft 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 rotating shaft seat (333) and the second door panel rotating shaft seat (334), and the door panel (301) can rotate around the adapter plate (302).

15. The rail grinding device according to claim 14, characterized in that: The side door upper plate (306) is connected to the vehicle frame (1) through a side door rotating shaft 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 plate (306). One end of the side door flipping drive mechanism (319) is connected to the side door upper plate (306) through a 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 a flipping drive mechanism tail seat (320).

16. The rail grinding device according to claim 13, 14 or 15, characterized in that: One end of the side door lifting drive mechanism (307) is installed on the side door upper plate (306) through a first drive mechanism tail seat (316), and the other end is installed on the side door (308) through a first drive mechanism rod seat (317). The side door lifting drive mechanism (307) can drive the side door (308) to rise and fall.

17. The rail grinding device according to claim 16, 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). Among them, the first sliding rod seat (325) and the third sliding rod seat (328) are installed on the side door upper plate (306), 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), and a translation pair is formed between the sliding rod (326) and the second sliding rod seat (327) and the fourth sliding rod seat (329).

18. The rail grinding device according to claim 13, 14, 15 or 17, characterized in that: Both the side fireproof flexible curtain (309) and the end fireproof flexible curtain (311) are fixed through fireproof curtain pin shafts (331) and ring pins (332).

19. The rail grinding device according to claim 13, 14, 15 or 17, characterized in that: The fireproof and dust-proof device (3) further includes an intermediate partition plate lifting drive mechanism (315) provided between the internal intermediate plate assembly and the main beam longitudinal beam (105).

20. The rail grinding device according to claim 19, wherein: One end of the middle partition lifting drive mechanism (315) is installed on the main longitudinal beam (105) of the vehicle frame (1) through the second drive mechanism tailstock (336), and the other end is installed on the middle upper partition (313) through 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.

21. The rail grinding device according to claim 13, 14, 15, 17 or 20, characterized in that: An anti-detachment mechanism (322) is also installed between the middle upper partition (313) and the vehicle frame (1) to prevent the middle upper partition (313) from detaching.

22. The rail grinding device according to claim 21, characterized in that: The middle lower partition (314) is connected to the middle upper partition (313) through a U-shaped shackle (323) and a locking bolt (324).

23. The rail grinding device according to claim 13, 14, 15, 17, 20 or 22, characterized in that: A fire curtain (312) is installed below the side door (308), the end upper plate (310) and the middle lower partition (314). The fire curtain (312) is connected through quick connectors (330), and the fire curtain (312) is composed of several individual fireproof plates.

24. The rail grinding device according to claim 1, 2, 3, 4, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 20 or 22, characterized in that: The grinding unit (2) further includes a suspension assembly, a unit frame assembly, a grinding motor mounting bracket (205), a sliding back plate (216), a grinding wheel (219), a lifting drive mechanism (207) and a deflection drive mechanism (211); the suspension assembly is connected to the vehicle frame (1), and the unit frame assembly is slidably connected to the suspension assembly; the grinding motor mounting bracket (205) is hinged to the lower part of the unit frame assembly, the sliding back plate (216) is fixed to the grinding motor (204), and the vertical guide post bottom plate (217) is installed on the grinding motor mounting bracket (205); the vertical guide posts (215) are installed on the vertical guide post bottom plate (217) in parallel, and the vertical guide post top plate (214) is installed above the vertical guide posts (215); the sliding back plate (216) is movably sleeved on the vertical guide posts (215) and can slide up and down along the vertical guide posts (215), and the grinding wheel (219) is connected to the output shaft of the grinding motor (204); both ends of the lifting drive mechanism (207) are respectively hinged to the grinding motor (204) and the grinding motor mounting bracket (205); both ends of the deflection drive mechanism (211) are respectively hinged to the vehicle frame (1) and the grinding motor mounting bracket (205).

25. The rail grinding device according to claim 24, characterized in that: The suspension assembly includes a unit suspension plate (201) and transverse guide posts (202). The unit suspension plate (201) is installed on the vehicle frame (1), and two transverse guide posts (202) are installed between the two unit suspension plates (201) in parallel.

26. The rail grinding device according to claim 25, characterized in that: The unit frame assembly includes a grinding unit frame (203) and a rotating shaft (206). The grinding unit frame (203) is installed on the transverse guide posts (202) and can slide horizontally along the transverse guide posts (202); the rotating shaft (206) is installed at the lower part of the grinding unit frame (203) and connects the grinding unit frame (203) and the grinding motor mounting bracket (205), and the grinding motor mounting bracket (205) can rotate relative to the grinding unit frame (203) around the rotating shaft (206).

27. The rail grinding device according to claim 26, characterized in that: It includes two grinding motors (204). Four vertical guide columns (215) are installed on the vertical guide column bottom plate (217) in pairs parallel to each other. Each grinding motor (204) is installed on two vertical guide columns (215) through a sliding back plate (216). One end of the lifting drive mechanism (207) is installed on the grinding motor (204) through a lifting drive mounting seat (208), and the other end is installed on the grinding motor mounting frame (205) through another lifting drive mounting seat (208). The lifting drive mechanism (207) can drive the grinding motor (204) to move up and down.

28. The rail grinding device according to claim 26 or 27, characterized in that: One end of the deflection drive mechanism (211) is installed on the grinding motor mounting frame (205) through a deflection drive mounting seat (212), and the other end is installed on the vehicle frame (1) through another deflection drive mounting seat (212).

29. The rail grinding device according to claim 28, characterized in that: A reinforcing plate (209) is connected between the vertical guide column top plate (214) and the grinding motor mounting frame (205).

30. The rail grinding device according to claim 25, 26, 27 or 29, characterized in that: A grinding motor high-position locking assembly (210) is installed on the grinding motor mounting frame (205) to achieve the locking function when the grinding motor (204) is in the high position. The grinding motor high-position locking assembly (210) includes a locking plate (222), a fixed sliding seat (223), a high-position locking drive mechanism (225) and a locking drive mounting base (226). The fixed sliding seat (223) is arranged on the vertical guide column bottom plate (217), and the locking drive mounting base (226) is arranged on the grinding motor mounting frame (205). The locking plate (222) is slidably connected to the fixed sliding seat (223), and the high-position locking drive mechanism (225) is arranged on the locking drive mounting base (226). The locking plate (222) is connected to the movable end of the high-position locking drive mechanism (225) through a locking pin shaft (227). When the grinding motor (204) is in the high position, the movable end of the high-position locking drive mechanism (225) extends out, driving the locking plate (222) to slide below the grinding motor back plate (221), so as to achieve high-position locking.

31. The rail grinding device according to claim 30, wherein: A grinding motor deflection locking assembly (213) is also installed on the grinding motor mounting bracket (205) to achieve the locking function when the grinding motor mounting bracket (205) is in the zero position; the grinding motor deflection locking assembly (213) includes a position detection travel switch (228), a deflection locking seat (229), and a deflection locking drive mechanism (230); the deflection locking seat (229) is fixed on the grinding motor mounting bracket (205) and can deflect with the deflection of the grinding motor (204); the deflection locking drive mechanism (230) is fixed on the grinding unit frame (203), and the position detection travel switch (228) is installed on the deflection locking seat (229); when the grinding motor (204) is deflected by 0 degrees, the hole (233) formed on the deflection locking seat (229) is in an aligned state with the deflection locking drive mechanism (230), and the movable end of the deflection locking drive mechanism (230) extends into the hole (233), thereby achieving deflection locking, and the position detection travel switch (228) outputs a locking-in-place signal.

32. The rail grinding device according to claim 25, 26, 27, 29 or 31, characterized in that: The lateral guide posts (202), the grinding motors (204), the lifting drive mechanism (207), the vertical guide posts (215), and the deflection drive mechanism (211) are all arranged in the low-temperature area.

33. The rail grinding device according to claim 1, 2, 3, 4, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 20, 22, 25, 26, 27, 29 or 31, characterized in that: Six grinding units (2) are arranged in the fire and dust prevention device (3), and every two grinding units (2) are symmetrically arranged horizontally. Each grinding unit (2) includes two grinding motors (204); a grinding wheel connection flange (218) is installed at the shaft end of the grinding motor (204), and the grinding wheel (219) is installed on the grinding wheel connection flange (218).

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