Steel rail polishing device

Abstract

The utility model 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 field of railway engineering machinery technology, and in particular to a high-efficiency grinding device for rail grinding operations. Background Technology

[0002] The grinding device is the executing mechanism for rail grinding operations. As a key component of the rail grinding train, it plays a vital role. The quality, efficiency, and coverage of grinding angles during rail grinding are all determined by the grinding device. A rail grinding device typically consists of multiple grinding units. The grinding wheels in each unit directly act on the rail to perform the grinding operation. The number of grinding units directly determines the grinding efficiency of the entire device. Currently, the main types of grinding devices used in rail grinding vehicles both domestically and internationally include:

[0003] The first type is the national railway grinding trolley, which integrates four grinding units into a single trolley, with two grinding motors arranged symmetrically on each grinding unit.

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

[0005] The following documents are relevant to this application in the prior art:

[0006] Document 1 is a Chinese utility model patent applied for by Zhuzhou Times Electronic Technology Co., Ltd. on July 28, 2023, and published on May 7, 2024, with publication number CN220908045U. This utility model discloses a rail grinding device, including: a frame, a battery, a dust and chip prevention device, a frame body, a control system, a lateral movement drive mechanism, a first lateral movement component, a second lateral movement component, and a grinding unit. Wheelsets for vehicle travel and support are arranged below the frame, while the battery, control system, and frame body are all arranged above the frame. The grinding unit is located inside the frame body, and the dust and chip prevention device is located on the frame body. The first and second lateral movement components are arranged between the frame and the grinding unit, forming a lateral movement pair. The lateral movement drive mechanism is arranged between the frame body and the grinding unit, enabling the grinding unit to move laterally relative to the frame. This application solves the technical problem that existing equipment cannot simultaneously achieve high grinding power, high operating efficiency, and high automation while being simple in structure, low in cost, and lightweight, and capable of short-distance reciprocating grinding. This utility model is a small rail grinding device, which can only perform short-distance, low-volume grinding.

[0007] Document 2 is a Chinese invention application filed on August 12, 2022, and published on September 23, 2022, by Jinying Heavy Engineering Machinery Co., Ltd. and China State Railway Group Co., Ltd., with publication number CN115094693A. This invention discloses a rail grinding device, including a lateral movement mechanism, a deflection mechanism, a lifting mechanism, and a grinding mechanism. The grinding mechanism includes a grinding wheel whose circumferential surface can contact the rail head and moves longitudinally along the rail as the rail grinding vehicle travels, thereby grinding the surface of the rail head. The lifting mechanism drives the grinding mechanism to rise and fall; the lateral movement mechanism drives the lifting mechanism to rotate, thereby causing the grinding wheel to move laterally relative to the rail; the deflection mechanism drives the grinding mechanism to rotate, thereby causing the grinding wheel to change angle laterally relative to the rail. This invention uses a tangential grinding method with a grinding wheel, resulting in low grinding efficiency and limited application scenarios.

[0008] Document 3 is a Chinese invention application filed on September 19, 2022, and published on December 2, 2022, with publication number CN115418899A, by Sichuan Southwest Jiaotong University Railway Development Co., Ltd. and Chengdu Luzhian Technology Co., Ltd. This invention discloses a high-speed rail grinding trolley for urban rail transit, including a grinding frame for mounting and fixing various components to achieve the grinding function, and a first lifting mechanism connected to the trolley body and the grinding frame to achieve lifting and lowering of the grinding frame and provide clamping force. This invention enables rapid and reliable raising and lowering of the grinding beam via a second lifting mechanism; achieves precise adjustment and wide coverage of the rail surface grinding position through a grinding angle adjustment mechanism; allows for rapid rotation and replacement of the grinding stone set through a rotating mechanism, which locks after rotation to ensure the stability of the grinding beam's working state; and facilitates the raising and lowering of the grinding frame through symmetrically arranged fourth telescopic components, avoiding problems such as device failure and uncontrollable state caused by asynchronous raising and lowering operations. Through the cooperation of the suspension components and suspension shaft, the raised grinding frame is stably placed during high-speed travel, preventing the grinding frame from falling onto the rail or other dangerous situations in case the lifting device fails. However, this invention employs a passive grinding method with no power source input to the grinding wheel, resulting in low grinding efficiency.

[0009] In summary, there is an urgent need to develop a high-efficiency rail grinding device to solve the technical problems of low grinding efficiency, low maintainability, and high temperature overheating inside the grinding trolley of existing devices. Utility Model Content

[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 overheating inside the existing device.

[0011] To achieve the aforementioned utility model objectives, this application specifically provides a technical solution for a rail grinding device, including:

[0012] Frame;

[0013] Fireproof and dustproof devices installed on the vehicle frame;

[0014] The grinding unit is mounted on the vehicle frame and located inside the fireproof and dustproof device.

[0015] The frame includes a main beam assembly and a grinding device frame assembly disposed on both sides of the main beam assembly along the lateral direction.

[0016] The grinding unit includes a grinding motor, a grinding motor back plate disposed on the back of the grinding motor, a vertical guide column movably connected to the grinding motor, a vertical guide column top plate and a vertical guide column bottom plate respectively connected to the upper and lower ends of the vertical guide column, and a fireproof and heat-insulating curtain.

[0017] The fireproof and dustproof device includes an internal middle plate assembly, a side panel assembly, a top plate assembly, and a dust collection vent and a middle dust collection port disposed on the top plate assembly. The grinding unit is disposed between the internal middle plate assembly, the side panel assembly, and the top plate assembly.

[0018] The upper end of the grinding motor back plate is mounted on the top plate of the vertical guide column, and the lower end is mounted on the bottom plate of the vertical guide column. One end of the fireproof and heat-insulating curtain is mounted above the grinding motor back plate, and the other end is mounted on the longitudinal beam of the frame on the inner side of the grinding device frame. The area separated from the grinding motor back plate, the fireproof and heat-insulating curtain, and the internal intermediate plate assembly is the high-temperature zone, and the intermediate dust collection port is located above the high-temperature zone. The area separated from the grinding motor back plate, the fireproof and heat-insulating curtain, the side panel assembly, and the top plate assembly is the low-temperature zone, and the dust collection port is located above the low-temperature zone.

[0019] Furthermore, the frame also includes end beam assemblies and a traveling assembly. The end beam assemblies are disposed at the front and rear ends of the frame along the working direction. The main beam assembly is mounted on the upper center of the end beam assembly, and the traveling assembly is mounted below the end beam assembly and symmetrically distributed laterally. The grinding device frame assembly and the end beam assembly are positioned together by a first boss and a first groove.

[0020] Furthermore, the grinding device frame assembly also includes frame crossbeams, frame vertical beams, and a frame base plate. Two frame vertical beams are perpendicularly connected to two frame crossbeams to form the main frame body, and the four corners of the main frame body are connected to the top of the frame vertical beams. The frame base plate is installed at the bottom of the frame vertical beams, and a first protrusion for positioning is provided on the frame base plate.

[0021] Furthermore, the grinding device frame assembly also includes unit mounting seats, which are disposed on the inner side of the frame longitudinal beams. The installation 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 an end beam stiffener, the end beam having a first groove that mates with the first boss, and the end beam stiffener being located below the end beam.

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

[0024] Furthermore, the main beam assembly also includes a traction nose cover and a traction nose seat, which are disposed on the front side of the main beam vertical beam, with the traction nose cover disposed on the traction nose seat.

[0025] Furthermore, the traveling assembly includes a wheel mounting plate, an inner reinforcing plate, and an outer reinforcing plate. The inner and outer reinforcing plates are respectively disposed on both sides of the wheel mounting plate along the lateral direction, and an independent wheel is mounted on the wheel mounting plate.

[0026] Furthermore, the fireproof and dustproof device also includes front and rear panel assemblies, a side door lifting drive mechanism, and a side door flipping drive mechanism. The top panel assembly is fixedly connected to the upper part of the main beam longitudinal beam and the grinding device frame, and the side panel assembly is hinged to the side of the grinding device frame. The inner intermediate panel assembly is connected to the lower part of the main beam longitudinal beam, and the front and rear panel assemblies are connected to the lower part of 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 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. The door panel can be flipped upwards and opened.

[0028] 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 installed sequentially below the side door upper panel.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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 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.

[0034] 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.

[0035] 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.

[0036] Furthermore, the fireproof and dustproof device also includes a middle partition lifting drive mechanism disposed between the internal intermediate plate assembly and the main beam longitudinal beam.

[0037] 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.

[0038] 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.

[0039] Furthermore, the lower intermediate partition is connected to the upper intermediate partition via a U-shaped shackle and locking bolts.

[0040] 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.

[0041] Furthermore, the grinding unit also 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 column base plate is mounted on the grinding motor mounting bracket. The vertical guide columns are mounted parallel to each other on the vertical guide column base plate, and the vertical guide column top plate is mounted above the vertical guide columns. The sliding back plate is movably fitted onto the vertical guide columns and can slide up and down along the vertical guide columns. The grinding wheel is connected to the output shaft of the grinding motor. The two ends of the lifting drive mechanism are respectively hinged to the grinding motor and the grinding motor mounting bracket. The two ends of the deflection drive mechanism are respectively hinged to the vehicle frame and the grinding motor mounting bracket.

[0042] Furthermore, the suspension assembly includes unit suspension plates and lateral guide pillars. The unit suspension plates are mounted on the vehicle frame, and the two lateral guide pillars are mounted parallel to each other between the two unit suspension plates.

[0043] Furthermore, the unit frame assembly includes a grinding unit frame and a rotating shaft. The grinding unit frame is mounted on a transverse guide post and can slide laterally along the transverse guide post. 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] Furthermore, the rail grinding device includes two grinding motors and four vertical guide columns mounted parallel to each other on the vertical guide column base plate. Each grinding motor is mounted on two vertical guide columns via a sliding back plate. One end of the lifting drive mechanism is mounted on the grinding motor via a lifting drive mounting seat, and the other end is mounted on the grinding motor mounting frame via another lifting drive mounting seat. The lifting drive mechanism can drive the grinding motor to move up and down.

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

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

[0047] Furthermore, a high-position locking assembly for the grinding motor is installed on the grinding motor mounting bracket, enabling locking when the grinding motor is in a high position. The high-position locking assembly includes a locking plate, a fixed slide, a high-position locking drive mechanism, and a locking drive mounting base. The fixed slide is mounted on the vertical guide column base plate, and the locking drive mounting base is mounted on the grinding motor mounting bracket. The locking plate is slidably connected to the fixed slide, and the high-position locking drive mechanism is mounted on the locking drive mounting base. The locking plate and the movable end of the high-position locking drive mechanism are connected by a locking pin. When the grinding motor is in a high position, the movable end of the high-position locking drive mechanism extends, causing the locking plate to slide below the back plate of the grinding motor, thereby achieving high-position locking.

[0048] Furthermore, a grinding motor deflection locking assembly is also installed on the grinding motor mounting bracket, which achieves a locking function when the grinding motor mounting bracket is in the zero position. The grinding motor deflection locking assembly includes a position detection limit switch, a deflection locking seat, and a deflection locking drive mechanism. The deflection locking seat is fixed to the grinding motor mounting bracket and can deflect with the grinding motor. The deflection locking drive mechanism is fixed to the grinding unit frame, and the position detection limit switch is installed on the deflection locking seat. When the grinding motor is at 0 degrees deflection, the hole in the deflection locking seat is aligned with the deflection locking drive mechanism, and the movable end of the deflection locking drive mechanism extends into the hole, thereby achieving deflection locking. The position detection limit switch outputs a locking signal.

[0049] Furthermore, the transverse guide post, grinding motor, lifting drive mechanism, vertical guide post, and deflection drive mechanism are all located in the low-temperature zone.

[0050] Furthermore, the fireproof and dustproof device is equipped with six grinding units, arranged symmetrically in pairs along the transverse direction. Each grinding unit includes two grinding motors. A grinding wheel connecting flange is installed on the shaft end of each grinding motor, and the grinding wheel is mounted on the grinding wheel connecting flange.

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

[0052] (1) The rail grinding device of this application has a simple structure, high operating efficiency and good maintainability. By adding a back plate for the grinding motor and a fireproof and heat-insulating curtain, a high and low temperature zone can be formed inside the grinding device, thereby effectively reducing the temperature near the grinding motor and reducing the temperature near key components.

[0053] (2) The rail grinding device of this application designs the original frame that needs to be welded as a whole into multiple frame components that can be processed independently. During assembly, the components are positioned by grooves and bosses. After independent processing and welding, the components are combined together by high-strength bolts, which greatly reduces welding deformation and welding stress, and improves the maintainability in the later stage.

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

[0055] (4) The rail grinding device of this application has a grinding motor that can be lifted and lowered independently. It adopts an integral double-axis sliding back plate, which improves the lifting accuracy of the grinding motor and makes it easier to ensure the grinding operation accuracy. At the same time, it adds high-position locking and deflection locking functions for the grinding motor, which improves the grinding safety and stability. It adopts an open structure design, which effectively improves the maintenance performance of the grinding unit and the grinding motor. Attached Figure Description

[0056] 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.

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

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

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

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

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

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

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

[0064] Figure 8 This is a schematic front view of a specific embodiment of the rail grinding device of this application;

[0065] Figure 9 This is a three-dimensional structural diagram of the chassis in a specific embodiment of the rail grinding device of this application;

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

[0067] Figure 11 This is a schematic top view of the chassis structure in a specific embodiment of the rail grinding device of this application;

[0068] Figure 12 This is a schematic side view of the chassis structure in a specific embodiment of the rail grinding device of this application;

[0069] Figure 13 This is a schematic front view of the chassis structure in a specific embodiment of the rail grinding device of this application;

[0070] Figure 14 This is a schematic diagram of the frame installation structure in a specific embodiment of the rail grinding device of this application;

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

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

[0073] Figure 17 This is a schematic diagram of the grinding unit from another perspective in a specific embodiment of the rail grinding device of this application;

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

[0075] Figure 19 This is a schematic front view of the grinding unit in a specific embodiment of the rail grinding device of this application;

[0076] Figure 20 This is a schematic side view of the grinding unit in a specific embodiment of the rail grinding device of this application;

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

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

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

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

[0081] Figure 25 This is a schematic diagram of the fireproof and dustproof device in a specific embodiment of the rail grinding device of this application;

[0082] Figure 26 This is a schematic diagram of the fireproof and dustproof device from another perspective in a specific embodiment of the rail grinding device of this application;

[0083] Figure 27 This is a schematic top view of the fireproof and dustproof device in a specific embodiment of the rail grinding device of this application;

[0084] Figure 28 This is a schematic side view of the fireproof and dustproof device in a specific embodiment of the rail grinding device of this application;

[0085] Figure 29 This is a schematic front view of the fireproof and dustproof device in a specific embodiment of the rail grinding device of this application;

[0086] Figure 30 This is a partially enlarged schematic diagram of the fireproof and dustproof device in a specific embodiment of the rail grinding apparatus of this application. Figure 1 ;

[0087] Figure 31 This is a partially enlarged schematic diagram of the fireproof and dustproof device in a specific embodiment of the rail grinding apparatus of this application. Figure 2 ;

[0088] Figure 32 This is a partially enlarged schematic diagram of the fireproof and dustproof device in a specific embodiment of the rail grinding apparatus of this application. Figure 3 ;

[0089] Figure 33 This is a partially enlarged schematic diagram of the fireproof and dustproof device in a specific embodiment of the rail grinding apparatus of this application. Figure 4 ;

[0090] Figure 34This is a partially enlarged schematic diagram of the fireproof and dustproof device in a specific embodiment of the rail grinding apparatus of this application. Figure 5 ;

[0091] Figure 35 This is a partially enlarged schematic diagram of the fireproof and dustproof device in a specific embodiment of the rail grinding apparatus of this application. Figure 6 ;

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

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

[0094] In the diagram: 1-Frame, 2-Grinding unit, 3-Fireproof and dustproof 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, 201-Unit suspension plate, 202-Transverse guide column, 203-Grinding unit frame, 204-Grinding Grinding motor, 205-Grinding motor mounting bracket, 206-Shaft, 207-Lifting drive mechanism, 208-Lifting drive mounting base, 209-Reinforcing plate, 210-Grinding motor high-position locking assembly, 211-Deflection drive mechanism, 212-Deflection drive mounting base, 213-Grinding motor deflection locking assembly, 214-Vertical guide column top plate, 215-Vertical guide column, 216-Sliding back plate, 217-Vertical guide column bottom plate, 218-Connecting flange, 219-Grinding wheel, 220-Fireproof and heat-insulating curtain, 221-Grinding motor back plate, 222-Locking plate, 223-Fixed slide, 224-Slide groove, 225-High-position locking drive mechanism, 226-Locking drive mounting base 227-Locking pin, 228-Leg position detection limit switch, 229-Deflection locking seat, 230-Deflection locking drive mechanism, 231-Upper pressure bar, 232-Lower pressure bar, 233-Hole, 234-Transverse locking linkage, 301-Door panel, 302-Adapter plate, 303-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-flipping drive mechanism rod seat, 319-side door flipping drive mechanism, 320-flipping 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 tailstock, 100-rail grinding device. Detailed Implementation

[0095] 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.

[0096] As attached Figure 1 To be continued Figure 37 The accompanying drawings illustrate a specific embodiment of the rail grinding device of this application. The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this application.

[0097] As attached Figure 1 To be continued Figure 8 As shown, an embodiment of the rail grinding device of this application specifically includes:

[0098] Frame 1;

[0099] Fireproof and dustproof device 3 installed on the frame 1;

[0100] The polishing unit 2 is installed on the frame 1 and located inside the fireproof and dustproof device 3.

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

[0102] As attached Figure 7 As shown, the grinding unit 2 further includes a grinding motor 204, a grinding motor back plate 221 disposed on the back of the grinding motor 204, a vertical guide column 215 movably connected to the grinding motor 204, a vertical guide column top plate 214 and a vertical guide column bottom plate 217 respectively connected to the upper and lower ends of the vertical guide column 215, and a fireproof and heat-insulating curtain 220.

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

[0104] The rail grinding device 100 (typically comprising one or more grinding trolleys; in this embodiment, a single grinding trolley structure is specifically described) 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, pneumatic lines, etc. The operation control software, after being compiled, is stored in the vehicle's network control system. The rail grinding device 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 device 100 can be lifted and locked using a lifting cylinder. When the rail grinding vehicle is operating on the rail, the rail grinding device 100 rests on the rail and can perform rail grinding operations. The electrical and control systems of the grinding vehicle can control the power supply and operation of the rail grinding device 100.

[0105] As attached Figure 9 To be continued Figure 14 As shown, the frame 1 also includes end beam assemblies and a running gear assembly. The end beam assemblies are disposed on the frame 1 along the working direction (i.e., longitudinally, as shown in the attached figure). Figure 9 The direction indicated by L in the middle is shown in the attached diagram. Figure 9 The direction indicated by W is transverse, and the direction indicated by H is vertical. The main beam assembly is installed above the middle of the end beam assembly, and the traveling assembly is installed below the end beam assembly and symmetrically distributed transversely. The grinding device frame assembly and the end beam assembly are positioned together by the first boss 116 and the first groove 117.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] The frame 1 adopts modular components, mainly including a main beam assembly, end beam assemblies, frame assemblies, and running gear assemblies. The main beam assembly and frame assembly, and the frame assembly and end beam assemblies, are connected via mating grooves and bolts. All internal components of the main beam assembly, end beam assembly, and frame assembly are welded together. The running gear assembly is welded to the end beam assembly, the wheel axle is welded to the running gear assembly, and the independent wheel 4 is connected to the wheel axle. In this specific embodiment, the frame 1, which originally required integral welding, is designed as multiple independently processable modular components. After independent processing and welding, the various parts are combined together using high-strength bolts, greatly reducing welding deformation and welding stress, while improving subsequent maintainability. The modular frame structure reduces the processing difficulty of the frame 1, improves the commonality of parts, and reduces subsequent maintenance costs. The two side frame assemblies of the frame 1 adopt an open structure design, increasing the maintenance space, facilitating the disassembly and assembly of parts, and improving the maintainability of the grinding device. Meanwhile, the position of the unit mounting base 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 attached Figure 15 To be continued Figure 22As shown, the grinding unit 2 also 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 this application, the lifting drive mechanism 207 can specifically be a lifting cylinder, and the deflection drive mechanism 211 can specifically be a deflection cylinder. The suspension assembly is connected to the 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 column base plate 217 is mounted on the grinding motor mounting bracket 205. The vertical guide columns 215 are mounted parallel to each other on the vertical guide column base plate 217, and the vertical guide column top plate 214 is mounted above the vertical guide columns 215. The sliding backplate 216 is movably fitted onto the vertical guide post 215 and can slide up and down along the vertical guide post 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 hinged to the grinding motor 204 and the grinding motor mounting bracket 205, respectively. The two ends of the deflection drive mechanism 211 are hinged to the frame 1 and the grinding motor mounting bracket 205, respectively.

[0114] The suspension assembly further includes unit suspension plates 201 and lateral guide pillars 202. The unit suspension plates 201 are mounted on the frame 1, and the two lateral guide pillars 202 are mounted parallel to each other between the two unit suspension plates 201, with their ends fixed by bolts. The suspension assembly is connected to the unit frame by 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 mounted on a transverse guide post 202 and can slide laterally along the transverse guide post 202. The rotating shaft 206 is mounted on 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 transverse locking link 234 is provided between the unit suspension plate 201 and the grinding unit frame 203 to lock the transverse position of the grinding unit 2.

[0116] The rail grinding device 100 includes two grinding motors 204 and four vertical guide columns 215 mounted in pairs parallel to each other on the vertical guide column base plate 217. Each grinding motor 204 is mounted on two vertical guide columns 215 via a sliding back plate 216. One end of the lifting drive mechanism 207 is mounted on the grinding motor 204 via a lifting drive mounting base 208, and the other end is mounted on the grinding motor mounting bracket 205 via another lifting drive mounting base 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 via a deflection drive mounting base 212, and the other end is mounted on the frame 1 via another deflection drive mounting base 212. A reinforcing plate 209 is also connected between the vertical guide column top plate 214 and the grinding motor mounting bracket 205.

[0118] As attached Figure 23 As shown, a high-position locking assembly 210 for the grinding motor is installed on the grinding motor mounting bracket 205, which locks the grinding motor 204 when it is in a high position. The high-position locking assembly 210 includes a locking plate 222, a fixed slide 223, a high-position locking drive mechanism 225, and a locking drive mounting base 226. The fixed slide 223 is mounted on the vertical guide column base plate 217, and the locking drive mounting base 226 is mounted on the grinding motor mounting bracket 205. The locking plate 222 is slidably connected to the fixed slide 223, and the high-position locking drive mechanism 225 is mounted on the locking drive mounting base 226. The locking plate 222 and the movable end of the high-position locking drive mechanism 225 are connected by a locking pin 227. When the grinding motor 204 is in a high position, the movable end of the high-position locking drive mechanism 225 extends, causing the locking plate 222 to slide below the back plate 221 of the grinding motor, thereby achieving high-position locking. As a typical embodiment of this application, the high-position locking drive mechanism 225 can specifically adopt a high-position locking cylinder.

[0119] As attached Figure 24 As shown, a grinding motor deflection locking assembly 213 is also installed on the grinding motor mounting bracket 205, which achieves a 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 limit 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 grinding motor 204. The deflection locking drive mechanism 230 is fixed on the grinding unit frame 203, and the position detection limit switch 228 is installed on the deflection locking seat 229. When the grinding motor 204 is at 0 degrees of deflection, the hole 233 in the deflection locking seat 229 is aligned 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 limit switch 228 outputs a locking signal. As a typical embodiment of this application, the deflection locking drive mechanism 230 may specifically adopt a deflection locking cylinder.

[0120] As attached Figure 25 To be continued Figure 35As shown, the fireproof and dustproof device 3 also includes 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, and the side panel assembly is hinged to the side of the grinding device frame. The inner 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.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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 fireproof and dustproof 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.

[0126] 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.

[0127] 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.

[0128] The fire and dust 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.

[0129] 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.

[0130] 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. In this specific embodiment, an automatic lifting function for the fire-blocking device is adopted. 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.

[0131] The fireproof and dustproof device 3 contains six grinding units 2, arranged symmetrically in pairs along the transverse direction. Each grinding unit 2 includes two grinding motors 204. A grinding wheel connecting flange 218 is mounted on the shaft end of the grinding motor 204, and grinding wheels 219 are mounted on the grinding wheel connecting flange 218. Existing rail grinding devices generally consist of several grinding units, each integrating one grinding motor 204. The grinding motor 204 drives the grinding wheels 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 six grinding units 2 within the limited space of a single grinding trolley. Each grinding unit 2 integrates two grinding motors 204, for a total of 12 grinding motors 204, which can simultaneously mount 12 grinding wheels 219. The rail grinding car carries multiple grinding trolleys that work together simultaneously. Increasing the number of grinding heads per trolley allows for the placement of more grinding wheels while maintaining the same overall car length and number of trolleys; conversely, it allows for a reduction in the number of trolleys while keeping the total number of grinding wheels constant, thus reducing the overall car length and number of sections. Increasing the number of grinding heads effectively improves the grinding efficiency of the rail grinding car. Reducing the overall car length enhances its flexibility, lowers requirements for stations and yards, and allows for resupply stops at more smaller stations or yards.

[0132] Grinding unit 2 employs an integrated dual-axis motor sliding backplate assembly. The grinding motor 204 can be independently raised and lowered. The integrated dual-axis sliding backplate reduces the difficulty of parts processing, improves the raising and lowering accuracy of the grinding motor 204, making it easier to ensure grinding precision, and also reduces motor vibration, further improving grinding quality. The grinding motor 204 is designed with high-position locking and deflection locking functions, which can significantly improve grinding safety and stability. Grinding unit 2 has downward pressing, deflection, and lateral movement functions, enabling grinding of the main rail line, effectively improving rail grinding efficiency and quality.

[0133] As attached Figure 36 and appendix Figure 37As shown, the upper end of the grinding motor back plate 221 is mounted on the top plate 214 of the vertical guide column, and the lower end is mounted on the bottom plate 217 of the vertical guide column. One end of the fireproof and heat-insulating curtain 220 is mounted above the grinding motor back plate 221, and the other end is mounted on the longitudinal beam 101 of the frame on the inner side of the grinding device frame. The area separated from the grinding motor back plate 221, the fireproof and heat-insulating curtain 220 and the internal intermediate plate assembly is the high-temperature zone B, and the intermediate dust collection port 304 is located above the high-temperature zone. The area separated from the grinding motor back plate 221, the fireproof and heat-insulating curtain 220, the side panel assembly and the top plate assembly is the low-temperature zone A, and the dust collection port 303 is located above the low-temperature zone. The transverse guide column 202, the grinding motor 204, the lifting drive mechanism 207, the vertical guide column 215 and the deflection drive mechanism 211 are all located in the low-temperature zone. Rail grinding operations generate high temperatures inside the grinding device, which can affect its continuous operation. This embodiment addresses this by installing a fireproof and heat-insulating curtain 220 and a back plate 221 behind the grinding motor 204, effectively isolating high and low temperature zones within the grinding device. This prevents sparks from reaching the low-temperature zone, restricts the flow of hot air towards the motor, and slows the temperature rise in the low-temperature zone, thus improving the grinding device's continuous operation. Furthermore, dividing the grinding device into high-temperature and low-temperature zones ensures that critical components (such as the grinding motor and its drive mechanism, as well as internal bearings, coils, and seals) are located in the low-temperature zone, reducing the frequency of failure due to high temperatures. A specific embodiment also increases the number of air intakes to dissipate heat from the high-temperature and low-temperature zones separately, increasing the airflow rate inside the grinding device and reducing the overall internal temperature.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] 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.

[0139] By implementing the technical solution 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 simple structure, high operating efficiency, and good maintainability. By adding a back plate for the grinding motor and a fireproof and heat-insulating curtain, a high and low temperature zone can be formed inside the grinding device, thereby effectively reducing the temperature near the grinding motor and reducing the temperature near key components.

[0141] (2) The rail grinding device described in the specific embodiments of this application designs the original frame that needs to be welded as a whole into multiple frame components that can be processed independently. During assembly, the components are positioned by grooves and bosses. After independent processing and welding, the components are combined together by high-strength bolts, which greatly reduces welding deformation and welding stress, and improves the maintainability in the later stage.

[0142] (3) The rail grinding device described in the specific embodiments of this application improves the overall airtightness, and the multi-dust collection port design increases the internal dust removal airflow rate, improves the dust collection rate, and reduces the internal temperature of the grinding device; the side door and the upper cover can be opened and closed at a large angle, which can increase the maintenance space, reduce maintenance time, and reduce maintenance difficulty; the fire baffles on both sides and in the middle can be automatically lifted, which improves the passability of the grinding device.

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

[0144] 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.

[0145] 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 rail grinding device, characterized in that, include: Frame (1); Fireproof and dustproof device (3) installed on the frame (1); The grinding unit (2) is installed on the frame (1) and located inside the fireproof and dustproof device (3); The frame (1) includes a main beam assembly and a grinding device frame assembly disposed on both sides of the main beam assembly along the lateral direction. The grinding unit (2) includes a grinding motor (204), a grinding motor back plate (221) disposed on the back of the grinding motor (204), a vertical guide column (215) movably connected to the grinding motor (204), a vertical guide column top plate (214) and a vertical guide column bottom plate (217) respectively connected to the upper and lower ends of the vertical guide column (215), and a fireproof and heat-insulating curtain (220). The fireproof and dustproof device (3) includes an internal intermediate plate assembly, a side panel assembly, a top plate assembly, and a dust collection vent (303) and an intermediate dust collection vent (304) disposed on the top plate assembly; the grinding unit (2) is disposed between the internal intermediate plate assembly, the side panel assembly and the top plate assembly; The upper end of the grinding motor back plate (221) is installed on the top plate (214) of the vertical guide column, and the lower end is installed on the bottom plate (217) of the vertical guide column; one end of the fireproof and heat-insulating 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 from the grinding motor back plate (221), the fireproof and heat-insulating curtain (220) and the internal intermediate plate assembly is a high-temperature zone, and the intermediate dust collection port (304) is located above the high-temperature zone; the area separated from the grinding motor back plate (221), the fireproof and heat-insulating curtain (220), the side panel assembly and the top plate assembly is a low-temperature zone, and the dust collection port (303) is located above the low-temperature zone.

2. The rail grinding device of claim 1, wherein: The frame (1) also includes an end beam assembly and a traveling assembly. The end beam assembly is disposed at the front and rear ends of the frame (1) along the working direction. The main beam assembly is installed above the middle of the end beam assembly. The traveling assembly is installed below the end beam assembly and is symmetrically distributed in the transverse direction. The grinding device frame assembly and the end beam assembly are positioned by a first boss (116) and a first groove (117).

3. The rail grinding device of claim 2, wherein: The grinding device frame assembly also includes a frame crossbeam (102), a frame vertical beam (103), and a frame base plate (104); two frame longitudinal beams (101) and two frame crossbeams (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 beam (103); the frame base plate (104) is installed at the bottom of the frame vertical beam (103), and the frame base plate (104) is provided with a first boss (116) for positioning.

4. The rail grinding device of claim 3, wherein: The grinding device frame assembly also includes a unit mounting base (115), which is located on the inner side of 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).

5. The rail grinding device of claim 3 or 4, wherein: The end beam assembly includes an end beam (110) and an end beam stiffener (114). The end beam (110) is provided with a first groove (117) that cooperates with the first boss (116). The end beam stiffener (114) is located below the end beam (110).

6. The rail grinding device of claim 5, wherein: The main beam assembly includes a main beam longitudinal beam (105), a main beam vertical beam (106), and a main beam bottom plate (109); the two ends of the main beam longitudinal beam (105) are connected to the main beam vertical beam (106) along the longitudinal direction, the main beam bottom plate (109) is disposed at the bottom of the main beam vertical beam (106), and the bottom of the main beam bottom plate (109) is provided with a second boss (118) for positioning; the end beam (110) is provided with a second groove (119) that corresponds to and cooperates with the second boss (118).

7. The rail grinding device of claim 6, wherein: 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), and the traction nose cover (107) is disposed on the traction nose seat (108).

8. The rail grinding device of claim 6 or 7, wherein: The running assembly 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).

9. The rail grinding device of claim 8, wherein: The fireproof and dustproof device (3) also includes front and rear panel assemblies, a side door lifting drive mechanism (307), and a side door flipping drive mechanism (319); the top panel assembly is fixedly connected to the main beam longitudinal beam (105) and the upper part of the grinding device frame, and the side panel assembly is hinged to the side of the grinding device frame; the inner 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 flipping drive mechanism (319) is connected to the end beam (110) and the side panel assembly.

10. The rail grinding device of claim 9, wherein: The top panel assembly 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) mounted on the frame (1). The central dust collection port (304) is located on both sides of the central 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 central dust collection port (304) and the central 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). The door panel (301) can be flipped upward and opened.

11. The rail grinding device of claim 10, wherein: 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).

12. The rail grinding device of claim 11, wherein: 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).

13. The rail grinding device of claim 12, wherein: 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).

14. The rail grinding device of claim 13, wherein: 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).

15. The rail grinding device of claim 14, wherein: 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).

16. The rail grinding device of claim 13, 14 or 15, 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 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.

17. The rail grinding device of claim 16, wherein: 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).

18. The rail grinding device of claim 13, 14, 15, or 17, wherein: The side fireproof curtain (309) and the end fireproof curtain (311) are both fixed by fireproof curtain pins (331) and annular pins (332).

19. The rail grinding device of claim 13, 14, 15, or 17, wherein: The fireproof and dustproof 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).

20. The rail grinding device of claim 19, wherein: 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.

21. The rail grinding device of claim 13, 14, 15, 17, or 20, wherein: 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.

22. The rail grinding device of claim 21, wherein: The lower intermediate partition (314) is connected to the upper intermediate partition (313) via a U-shaped shackle (323) and a locking bolt (324).

23. The rail grinding device of claim 13, 14, 15, 17, 20, or 22, wherein: 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.

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 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 column base plate (217) is mounted on the grinding motor mounting bracket (205); the vertical guide columns (215) are connected to each other. The vertical guide column base plate (217) is installed in parallel, and the vertical guide column top plate (214) is installed above the vertical guide column (215); the sliding back plate (216) is movably sleeved on the vertical guide column (215) and can slide up and down along the vertical guide column (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 frame (1) and the grinding motor mounting bracket (205).

25. The rail grinding device of claim 24, wherein: The suspension assembly includes a unit suspension plate (201) and two transverse guide pillars (202). The unit suspension plate (201) is mounted on the frame (1), and the two transverse guide pillars (202) are mounted parallel to each other between the two unit suspension plates (201).

26. The rail grinding device of claim 25, wherein: The unit frame assembly includes a grinding unit frame (203) and a rotating shaft (206). The grinding unit frame (203) is mounted on a transverse guide post (202) and can slide laterally along the transverse guide post (202). The rotating shaft (206) is mounted on 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).

27. The rail grinding device of claim 26, wherein: It includes two grinding motors (204), and four vertical guide columns (215) are installed in pairs parallel to each other on the vertical guide column base plate (217). 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 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.

28. The rail grinding device of claim 26 or 27, wherein: One end of the deflection drive mechanism (211) is mounted on the grinding motor mounting bracket (205) via a deflection drive mounting base (212), and the other end is mounted on the frame (1) via another deflection drive mounting base (212).

29. The rail grinding device of claim 28, wherein: A reinforcing plate (209) is connected between the top plate (214) of the vertical guide column and the grinding motor mounting bracket (205).

30. The rail grinding device of claim 25, 26, 27, or 29, wherein: A high-position locking assembly (210) for the grinding motor is installed on the grinding motor mounting bracket (205) to achieve a locking function when the grinding motor (204) is in a high position. The high-position locking assembly (210) for the grinding motor includes a locking plate (222), a fixed slide (223), a high-position locking drive mechanism (225), and a locking drive mounting base (226). The fixed slide (223) is disposed on the vertical guide column base plate (217), and the locking drive mounting base (226) is disposed on the grinding motor mounting bracket (205). Above; the locking plate (222) is slidably connected to the fixed slide (223), and the high-position locking drive mechanism (225) is disposed on the locking drive mounting base (226); the movable end of the locking plate (222) and the high-position locking drive mechanism (225) are connected by a locking pin (227); when the grinding motor (204) is in a high position, the movable end of the high-position locking drive mechanism (225) extends out, driving the locking plate (222) to slide below the back plate (221) of the grinding motor, thereby realizing high-position locking.

31. The rail grinding device of claim 30, wherein: The grinding motor mounting bracket (205) is also equipped with a grinding motor deflection locking assembly (213), which locks the grinding motor when the grinding motor mounting bracket (205) is in the zero position. The grinding motor deflection locking assembly (213) includes a position detection limit 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 grinding motor (204). The deflection locking drive mechanism... (230) is fixed on the grinding unit frame (203), and the position detection limit switch (228) is installed on the deflection locking seat (229). When the grinding motor (204) is at 0 degrees of deflection, the hole (233) opened on the deflection locking seat (229) is aligned with the deflection locking drive mechanism (230). The movable end of the deflection locking drive mechanism (230) extends into the hole (233) to achieve deflection locking. The position detection limit switch (228) outputs a locking position signal.

32. The rail grinding device of claim 25, 26, 27, 29, or 31, wherein: The transverse guide column (202), grinding motor (204), lifting drive mechanism (207), vertical guide column (215) and deflection drive mechanism (211) are all located in the low temperature zone.

33. The rail grinding device of claim 1, 2, 3, 4, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 20, 22, 25, 26, 27, 29, or 31, further characterized by: The fireproof and dustproof device (3) is equipped with 6 grinding units (2), with each pair of grinding units (2) arranged symmetrically in the transverse direction. Each grinding unit (2) includes 2 grinding motors (204). The shaft end of the grinding motor (204) is equipped with a grinding wheel connecting flange (218), and the grinding wheel (219) is installed on the grinding wheel connecting flange (218).

Images