Steel rail grinding thermal insulation structure and steel rail grinding device

Abstract

The invention discloses a steel rail grinding thermal insulation structure and a steel rail grinding device, a grinding motor back plate is arranged behind a grinding motor, the upper end of the grinding motor back plate is mounted on a vertical guide column top plate, and the lower end of the grinding motor back plate is mounted on a vertical guide column bottom plate. One end of the fireproof thermal insulation check curtain is installed above the polishing motor back plate, and the other end of the fireproof thermal insulation check curtain is installed on the frame longitudinal beam close to the inner side. And the polishing unit is arranged among the internal middle plate assembly, the side panel assembly and the top plate assembly. The area separated by the polishing motor back plate, the fireproof thermal insulation check curtain and the internal middle plate assembly is a high-temperature area, and the middle dust collection opening is formed above the high-temperature area. The area separated by the polishing motor back plate, the fireproof thermal insulation check curtain, the side panel assembly and the top plate assembly is a low-temperature area, and the dust collection air opening is formed above the low-temperature area. The technical problem that the steel rail grinding operation effect is poor due to the fact that an existing steel rail grinding heat insulation structure cannot meet the dust collection and heat dissipation requirements at the same time can be solved.

Description

Technical Field

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

[0002] As a main component of railways, rails are subject to the periodic loads of train wheelsets for a long time, and rail diseases such as corrugation, spalling, cracks, scratches, and burrs are likely to occur on the rails. Rail grinding is a rail repair technology that can eliminate surface diseases of the rails by grinding the rail surface and extend the service life of the rails. The grinding device is the actuator of the rail grinding operation and is a key component of the rail grinding train, playing an important role on the grinding train. During the operation of the rail grinding vehicle, the high-speed rotating grinding wheel contacts the rail, generating a large amount of sparks and high-temperature iron filings. The sparks and high-temperature iron filings will cause high temperatures inside the grinding device. In a long-term high-temperature environment, components such as grinding motors and oil cylinders are extremely likely to fail. However, the existing rail grinding devices still have the following technical defects:

[0003] (1) The air suction flow rate inside the grinding device is slow, resulting in insufficient heat dissipation;

[0004] (2) The temperature near the electrical and hydraulic components inside the grinding device is too high, causing key components of the grinding unit to be prone to failure.

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

[0006] Document 1 is a Chinese utility model patent applied by Sichuan Kuncheng Run Technology Co., Ltd. on September 25, 2023, and announced on April 19, 2024, with the announcement number CN220813259U. This utility model discloses a dust-proof device inside the grinding beam, which includes an inner dust-proof box body. The bottom of the inner dust-proof box body is provided with a flat dust suction port, the dust suction port is close to the grinding stone and located inside the grinding stone, an inner baffle is arranged below the dust suction port, an activity baffle for contacting the inner side of the grinding beam is arranged outside the inner dust-proof box body, several air extraction pipes connected to external air extraction equipment are arranged on the top of the inner dust-proof box body, a flow guide plate for preventing dust turbulence is arranged inside the inner dust-proof box body, and the inner dust-proof box body is movably arranged on the grinding vehicle frame through a moving mechanism. The telescopic oil cylinder of this solution can drive the inner dust-proof box body to move along a specific trajectory to achieve the dynamic adjustment of the inner dust-proof box body, so as to provide a clearance space for the rotation and angle adjustment of the grinding beam. At the same time, it can also ensure that the dust suction port of the inner dust-proof box body can be close enough to the dust generation point during grinding to enhance the dust collection effect. However, this dust-proof device inside the grinding beam has the following technical defects:

[0007] 1) The dust-proof device solution is designed for passive grinding devices and can only be used for preventive grinding operations, and is not applicable to active grinding equipment. Grinding the end face of the grinding wheel is an active grinding method, which is used for repair grinding operations, with a larger grinding amount, higher requirements for the internal temperature of the grinding device, and the active grinding equipment is larger in size and has higher space requirements.

[0008] 2) The side of the dust-proof device adopts a closed rigid connection structure, which causes a greater obstruction to the use of the side space. When it is necessary to maintain the inside of the grinding device, its rigid connection structure is not conducive to the maintenance personnel to carry out repair operations.

[0009] Document 2 is a Chinese utility model patent applied by Beijing Tiefu Track Maintenance Technology Co., Ltd. on November 29, 2022, and announced on April 25, 2023, with the announcement number of CN218911000U. This utility model discloses a rail grinding spray system, including a water tank, a water pump, an overflow valve and a flow control valve. The water tank is provided with a water inlet and a water outlet. The water inlet of the water pump is communicated with the water outlet of the water tank, one of the water inlets of the overflow valve is communicated with the water outlet of the water pump, one of the openings of the flow control valve is communicated with the water outlet of the overflow valve, and the outlet of the flow control valve is communicated with the nozzle. The rail grinding spray system of this utility model solves the technical problems of unstable water flow pressure and flow rate and difficult control in the prior art, which lead to the caking of grinding dust.

[0010] Document 3 is a Chinese utility model patent applied by Henan Runhua General Equipment Co., Ltd. on December 30, 2021, and announced on June 24, 2022, with the announcement number of CN216799196U. This utility model discloses a rail grinding operation trolley spray system, including split water pipes installed on both sides of the grinding operation trolley. The split water pipes are communicated with the main water pipe on the grinding operation trolley through a tee joint. A switch valve and a filter are sequentially connected between the tee joint and the split water pipes. A plurality of fan-shaped nozzles arranged side by side are communicated with the split water pipes, and the spraying directions of the fan-shaped nozzles are inclined towards the direction of the fire curtain. The rail grinding operation trolley spray system of this utility model can reduce the generation of sparks, thereby reducing the fire safety hazards and extending the service life of the fire curtain.

[0011] However, using the spray systems of Document 2 and Document 3 to assist in cooling the grinding device has the following technical defects:

[0012] 1) Grinding dust and iron filings are prone to caking when encountering water, adhering to the surface of the rail, affecting the surface quality of the rail and the safety of train operation.

[0013] 2) When grinding dust and iron filings encounter water, it will increase the difficulty of dust collection, reduce the dust collection rate, and pollute the environment.

[0014] 3) The water consumption for spraying of the grinding equipment is large, the water source replenishment along the rail is less, the space of the grinding vehicle is limited, and the water transportation volume is insufficient, which cannot meet the water demand for spraying.

[0015] 4) After the rail is ground, the surface is full of fine grinding textures and is prone to rust when encountering water, reducing the surface quality of the rail. Summary of the Invention

[0016] In view of this, the purpose of the present application is to provide a rail grinding heat insulation structure and a rail grinding device to solve the technical problem that the existing rail grinding heat insulation structure cannot meet the requirements of dust collection and heat dissipation at the same time, resulting in poor rail grinding operation effect.

[0017] To achieve the above-mentioned invention purpose, the present application specifically provides a technical implementation scheme of a rail grinding heat insulation structure, including: a grinding motor back plate, a fireproof heat insulation curtain, a vertical guide post top plate, a vertical guide post bottom plate, a frame longitudinal beam, a dust collection air inlet, an intermediate dust collection port, an internal intermediate plate assembly, a side plate assembly and a top plate assembly. The grinding motor back plate is arranged behind the grinding motor of the grinding unit, 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 fireproof heat insulation curtain is installed above the grinding motor back plate, and the other end is installed on the inner side of the frame longitudinal beam. A fireproof and dustproof device is composed of the internal intermediate plate assembly, the side plate assembly and the top plate assembly, and the grinding unit is arranged between the internal intermediate plate assembly, the side plate assembly and the top plate assembly. The area separated by the grinding motor back plate, the fireproof heat insulation curtain and the internal intermediate plate assembly is the high-temperature area, and the intermediate dust collection port is arranged above the high-temperature area. The area separated by the grinding motor back plate, the fireproof heat insulation curtain, the side plate assembly and the top plate assembly is the low-temperature area, and the dust collection air inlet is arranged above the low-temperature area.

[0018] Furthermore, the heat insulation structure further includes an upper pressing strip and a lower pressing strip. One end of the fireproof heat insulation curtain is pressed above the grinding motor back plate through the lower pressing strip, and the other end is pressed below the frame longitudinal beam through the upper pressing strip.

[0019] Furthermore, the length of the fireproof heat insulation curtain can meet the maximum deflection angle requirement of the grinding motor.

[0020] The present application also specifically provides a technical implementation scheme of a rail grinding device, including: a grinding unit, and the heat insulation structure as described above.

[0021] Furthermore, the grinding unit includes: a suspension assembly, a unit frame assembly, a grinding motor mounting bracket, a motor guiding assembly, a grinding motor, 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, and the motor guiding assembly is connected to the grinding motor mounting bracket. The grinding motor is slidably connected to the motor guiding assembly, and 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.

[0022] Furthermore, 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 parallel to each other between the two unit suspension plates.

[0023] Furthermore, 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.

[0024] Furthermore, the motor guiding assembly includes vertical guide posts and a sliding back plate. The sliding back plate is fixed to the grinding motor. The vertical guide posts are mounted parallel to each other on a vertical guide post bottom plate, and a 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.

[0025] Furthermore, the grinding unit includes two grinding motors. Four vertical guide posts are mounted in pairs parallel to each other on the vertical guide post bottom plate, and each grinding motor is mounted on two vertical guide posts. 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.

[0026] Furthermore, 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.

[0027] Furthermore, a reinforcing plate is connected between the vertical guide post top plate and the grinding motor mounting bracket.

[0028] 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 below the back plate of the grinding motor, thereby achieving high-position locking.

[0029] 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 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, thereby achieving deflection locking, and the position detection travel switch outputs a locking-in-place signal.

[0030] 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.

[0031] By implementing the technical solutions of the rail grinding heat insulation structure and the rail grinding device provided in the present application, the following beneficial effects are achieved:

[0032] (1) For the rail grinding heat insulation structure and the rail grinding device of the present application, the interior of the grinding device is divided into a high-temperature area and a low-temperature area, so that key components including electrical and hydraulic components are in the low-temperature area, which can reduce the failure frequency of key components due to high temperature;

[0033] (2) For the rail grinding heat insulation structure and the rail grinding device of the present application, by increasing the number of air suction ports and optimizing the arrangement of air suction ports, heat dissipation is carried out for the high-temperature area and the low-temperature area inside the grinding device respectively, which can increase the air flow velocity inside the grinding device and reduce the overall temperature inside the grinding device;

[0034] (3) The rail grinding heat insulation structure and rail grinding device of the present application adopt a new design of the grinding unit framework, which is more compact and streamlined, occupies less space, and can arrange two grinding motors within the same grinding unit framework, thereby increasing the grinding head layout density, further improving the grinding efficiency, and enhancing the grinding quality;

[0035] (4) The rail grinding heat insulation structure and rail grinding device of the present application adopt an integrated double-axis sliding motor mounting backplane, and the grinding motors can be independently lifted and lowered, reducing the part processing difficulty, improving the grinding head landing accuracy, reducing the vibration of the grinding motors, and further enhancing the grinding quality;

[0036] (5) The rail grinding heat insulation structure and rail grinding device of the present application adopt a grinding unit framework with a large opening structure design, which can increase the maintenance space, improve the maintainability of the grinding unit, reduce the overall vehicle length under the condition of a certain total number of grinding heads, enhance the flexibility of the overall vehicle, reduce the requirements for stations and depots, and can stop at more small stations or depots for refueling;

[0037] (6) The rail grinding heat insulation structure and rail grinding device of the present application have the functions of downward pressure, deflection, and lateral movement for the grinding unit, can grind the main line of the rail, effectively improve the rail grinding efficiency and grinding quality, and at the same time have the functions of high-position locking and deflection locking of the grinding motors, which can greatly enhance the grinding safety and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other embodiments can be obtained based on these drawings without creative efforts.

[0039] Figure 1 is a schematic diagram of the principle of a specific embodiment of the rail grinding heat insulation structure of the present application;

[0040] Figure 2 is a schematic structural diagram of a specific embodiment of the rail grinding heat insulation structure of the present application;

[0041] Figure 3 is a three-dimensional structural diagram of a specific embodiment of the rail grinding device of the present application;

[0042] Figure 4 is a side view of the internal structure of a specific embodiment of the rail grinding device of the present application;

[0043] Figure 5 is a top view of the internal structure of a specific embodiment of the rail grinding device of the present application;

[0044] Figure 6 It is a schematic top view of the structure of a specific embodiment of the rail grinding device of the present application;

[0045] Figure 7 It is a three-dimensional internal structure view of a specific embodiment of the rail grinding device of the present application;

[0046] Figure 8 It is a schematic side view of the structure of a specific embodiment of the rail grinding device of the present application;

[0047] Figure 9 It is a front view of the internal structure of a specific embodiment of the rail grinding device of the present application;

[0048] Figure 10 It is a schematic front view of the structure of a specific embodiment of the rail grinding device of the present application;

[0049] Figure 11 It is a schematic diagram of a partial structure of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0050] Figure 12 It is a schematic diagram of the structure of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0051] Figure 13 It is a schematic diagram of the structure of the grinding unit in a specific embodiment of the rail grinding device of the present application from another perspective;

[0052] Figure 14 It is a schematic diagram of the structure of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0053] Figure 15 It is a front view of the structure of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0054] Figure 16 It is a side view of the structure of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0055] Figure 17 It is a rear view of the structure of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0056] Figure 18 It is a top view of the structure of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0057] Figure 19 It is a schematic diagram of the structure of the high-position locking device of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0058] Figure 20It is a schematic structural diagram of the deflection locking device of the grinding unit in a specific embodiment of the rail grinding device of the present application;

[0059] Figure 21 It is a three-dimensional structural diagram of the vehicle frame in a specific embodiment of the rail grinding device of the present application;

[0060] Figure 22 It is a three-dimensional structural diagram of the vehicle frame (excluding independent wheels) in a specific embodiment of the rail grinding device of the present application;

[0061] Figure 23 It is a schematic top view of the structure of the vehicle frame in a specific embodiment of the rail grinding device of the present application;

[0062] Figure 24 It is a schematic side view of the structure of the vehicle frame in a specific embodiment of the rail grinding device of the present application;

[0063] Figure 25 It is a schematic front view of the structure of the vehicle frame in a specific embodiment of the rail grinding device of the present application;

[0064] Figure 26 It is a schematic installation structure diagram of the vehicle frame in a specific embodiment of the rail grinding device of the present application;

[0065] 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 reinforcing plate, 112 - wheel mounting plate, 113 - outer reinforcing 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 - reinforcing 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 - fire - proof heat - insulating curtain, 221 - grinding motor back plate, 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, 303 - dust collection air inlet, 304 - intermediate dust collection port, 100 - rail grinding device. Detailed implementation manners

[0066] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0067] As shown in the attached Figure 1 to the attached Figure 26 figures, specific embodiments of the rail grinding heat - insulation structure and the rail grinding device of the present application are given. The present application will be further described below with reference to the accompanying drawings and specific embodiments.

[0068] Embodiment 1

[0069] As shown in the attached Figure 1 and attached Figure 2As shown in the figure, an embodiment of the rail grinding heat insulation structure of the present application specifically includes: a grinding motor back plate 221, a fireproof heat insulation curtain 220, a vertical guide post top plate 214, a vertical guide post bottom plate 217, a frame longitudinal beam 101, a dust collection air outlet 303, an intermediate dust collection port 304, an internal intermediate plate assembly, a side plate assembly and a top plate assembly. The grinding motor back plate 221 is arranged behind the grinding motor 204 of the grinding unit 2. 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 inner side of the frame longitudinal beam 101. A fireproof and dustproof device 3 is composed of an internal intermediate plate assembly, a side plate assembly and a top plate assembly. The grinding unit 2 is arranged between the internal intermediate plate assembly, the side plate assembly and the top plate assembly. 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 arranged above the high-temperature area. The area separated by the grinding motor back plate 221, the fireproof heat insulation curtain 220, the side plate assembly and the top plate assembly is the low-temperature area A, and the dust collection air outlet 303 is arranged above the low-temperature area.

[0070] The rail grinding heat insulation structure further includes an upper pressing strip 231 and a lower pressing strip 232. One end of the fireproof heat insulation curtain 220 is pressed above the grinding motor back plate 221 through the lower pressing strip 232, and the other end is pressed below the frame longitudinal beam 101 through the upper pressing strip 231. The length of the fireproof heat insulation curtain 220 can meet the maximum deflection angle requirement of the grinding motor 204.

[0071] The lateral 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 slows down, 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 failure frequency of the key components due to high temperature. The specific embodiment also improves the air flow velocity 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.

[0072] Embodiment 2

[0073] As shown in the attached Figure 3 to the attachedFigure 10 As shown in the figure, an embodiment of the rail grinding device 100 of the present application based on the heat insulation structure described in Embodiment 1 specifically includes:

[0074] A vehicle frame 1;

[0075] A fire and dust prevention device 3 arranged on the vehicle frame 1;

[0076] A grinding unit 2 arranged on the vehicle frame 1 and located inside the fire and dust prevention device 3.

[0077] As shown in the attached Figure 11 to the attached Figure 18 As shown in the figure, an embodiment of the grinding unit 2 specifically includes: a suspension assembly, a unit frame assembly, a motor mounting platform, a motor guiding assembly, a grinding motor 204, 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 motor mounting platform is hinged to the lower part of the unit frame assembly, and the motor guiding assembly is connected to the motor mounting platform. The grinding motor 204 is slidably connected to the motor guiding assembly, and 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 motor mounting platform. The two ends of the deflection drive mechanism 211 are respectively hinged to the vehicle frame 1 and the motor mounting platform. As a typical embodiment of the present application, the lifting drive mechanism 207 can specifically adopt a lifting oil cylinder, and the deflection drive mechanism 211 can specifically adopt a deflection oil cylinder.

[0078] The suspension assembly further includes a unit suspension plate 201 and a transverse guide post 202. The unit suspension plate 201 is installed on the vehicle frame 1, and the two transverse guide posts 202 are installed between the two unit suspension plates 201 in parallel and fixed at both ends by bolts. The suspension assembly is connected to the unit frame through bolts and mating grooves.

[0079] The motor mounting platform further includes a grinding motor mounting frame 205 and a vertical guide post bottom plate 217. The vertical guide post bottom plate 217 is installed on the grinding motor mounting frame 205.

[0080] 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 transverse guide post 202 and can slide horizontally along the transverse 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 frame 205. The grinding motor mounting frame 205 can rotate relative to the grinding unit frame 203 around the rotating shaft 206. A transverse locking link 234 is arranged between the unit suspension plate 201 and the grinding unit frame 203 for realizing the transverse position locking of the grinding unit 2.

[0081] 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.

[0082] The motor guiding assembly includes a vertical guide post top plate 214, vertical guide posts 215 and a sliding back plate 216. The sliding back plate 216 is fixed to the grinding motor 204. 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.

[0083] 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 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.

[0084] 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. A reinforcing plate 209 is also connected between the vertical guide post top plate 214 and the grinding motor mounting frame 205.

[0085] As shown in the Figure 19 accompanying drawings, a high-position locking assembly 210 for the grinding motor 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 high-position locking assembly 210 for the grinding motor 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 post 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 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 can specifically adopt a high-position locking oil cylinder.

[0086] As shown in the Figure 20As shown, 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 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 installed 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 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 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.

[0087] As shown in the attached Figure 21 to the attached Figure 26 figure, the vehicle frame 1 specifically includes: a main beam assembly, a grinding device frame assembly, end beam assemblies, and a running assembly. The end beam assemblies are arranged at the front and rear ends of the vehicle frame 1 along the operation direction (i.e., longitudinally, the direction shown by L in the attached Figure 21 figure, the direction shown by W in the attached Figure 21 figure is the transverse direction, and the direction shown by H is the vertical direction). The main beam assembly is installed in the middle above the end beam assemblies, and the grinding device frame assemblies are installed on both sides along the transverse direction above the end beam assemblies. The running assembly is installed below the end beam assemblies and is symmetrically distributed along the transverse direction. The positioning between the grinding device frame assembly and the end beam assembly is achieved through a first boss 116 and a first groove 117.

[0088] The grinding device frame assembly further includes frame longitudinal beams 101, 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 installed at the bottom of the frame vertical beams 103, and a first boss 116 for positioning is provided on the frame bottom plate 104.

[0089] The grinding device frame assembly further includes 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. At the same time, the position of the unit mounting seats 115 can be adjusted according to the number of grinding heads and the form of the frame assembly, so that the vehicle frame 1 of the rail grinding device 100 is universal, and the number of grinding heads can be adjusted according to actual needs.

[0090] The end beam assembly further includes an end beam 110 and end beam stiffeners 114. A first groove 117 mating with the first boss 116 is provided on the end beam 110, and the end beam stiffeners 114 are arranged below the end beam 110.

[0091] 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 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.

[0092] 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 edges of the main beam vertical beam 106, and the traction nose cover 107 is arranged on the traction nose seat 108.

[0093] The running assembly further 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 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.

[0094] The grinding unit 2 adopts an integral double-shaft motor sliding backplane assembly. The grinding motor 204 can be independently lifted. By using an integral double-shaft sliding backplane, the part processing difficulty 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, further improving the grinding quality. 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 functions of pressing down, deflecting and transverse shifting, and can grind the main line of the rail, effectively improving the rail grinding efficiency and grinding quality.

[0095] The fire and dust prevention device 3 is provided with 6 grinding units 2, and every two grinding units 2 are symmetrically arranged horizontally. Each grinding unit 2 includes 2 grinding motors 204. A grinding wheel connection flange 218 is installed at the shaft end of the grinding motor 204, and a grinding wheel 219 is installed on the grinding wheel connection flange 218. Existing rail grinding devices generally consist of 6, 8, 10 or other numbers of grinding units. Inside each grinding unit, there is 1 integrated grinding motor 204, and 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 grinding trolley. Inside each grinding unit 2, there are 2 integrated grinding motors 204, for 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 the multiple grinding trolleys cooperate with each other to perform operations simultaneously. The increase in the number of grinding heads of a single grinding trolley can arrange more grinding wheels without changing the overall vehicle length and the number of grinding trolleys; or reduce the number of grinding trolleys without changing the total number of grinding wheels, so as to reduce the number of vehicle sections and the overall vehicle length. Increasing the number of grinding heads can effectively improve the grinding efficiency of the rail grinding vehicle. Reducing the overall vehicle length can improve the flexibility of the overall vehicle, reduce the requirements for the station yard and the station, and enable it to stop and refuel at more small stations or station yards.

[0096] The rail grinding device 100 (usually includes more than one grinding trolley, and in this embodiment, the structure of a single grinding trolley is specifically introduced) has the functions of lifting and traveling, and the grinding unit 2 has the functions of lateral movement, downward pressure and deflection. These functional components then act on the whole vehicle through fasteners, cables, hydraulic pipelines, pneumatic pipelines, etc. 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 in the non-operation state, it is suspended under the vehicle body through a locking pin; when in the operation state, it realizes synchronous traveling with the whole vehicle through a traction column installed under the vehicle body. After stopping the operation, 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 drops onto 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.

[0097] It should be particularly noted that in the specific embodiment of this 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.

[0098] In the description of the present application, it should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly disposed on the other element or indirectly disposed 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.

[0099] It should be understood that the orientation or positional relationship indicated by terms such as "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. It 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. Therefore, it should not be construed as a limitation to the present application.

[0100] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality of" and "several" is two or more, unless otherwise specifically defined.

[0101] 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 the art to understand and read, and are not used to limit the implementable conditions of the present application. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present application can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed in the present application can cover.

[0102] By implementing the technical solutions of the rail grinding heat insulation structure and the rail grinding device described in the specific embodiments of the present application, the following technical effects can be achieved:

[0103] (1) For the rail grinding heat insulation structure and the rail grinding device described in the specific embodiments of the present application, the interior of the grinding device is divided into a high-temperature area and a low-temperature area, so that key components including electrical and hydraulic components are in the low-temperature area, which can reduce the frequency of failure of key components due to high temperature;

[0104] (2) For the rail grinding heat insulation structure and the rail grinding device described in the specific embodiments of the present application, by increasing the number of air inlets and optimizing the layout of air inlets, heat dissipation is carried out separately for the high-temperature area and the low-temperature area inside the grinding device, which can increase the air flow rate inside the grinding device and reduce the overall temperature inside the grinding device;

[0105] (3) The rail grinding heat insulation structure and the rail grinding device described in the specific embodiments of this application adopt a novel design of the grinding unit framework, with a more compact and streamlined structure, less occupied space. Two grinding motors can be arranged within the same grinding unit framework, thereby increasing the layout density of the grinding heads, further improving the grinding efficiency and the grinding quality.

[0106] (4) The rail grinding heat insulation structure and the rail grinding device described in the specific embodiments of this application adopt an integrated dual-axis sliding motor mounting backboard. The grinding motors can be independently lifted and lowered, reducing the machining difficulty of parts, improving the landing accuracy of the grinding heads, reducing the vibration of the grinding motors, and further improving the grinding quality.

[0107] (5) The rail grinding heat insulation structure and the rail grinding device described in the specific embodiments of this application adopt a grinding unit framework with a large opening structure design, which can increase the maintenance space, improve the maintainability of the grinding unit, reduce the length of the whole vehicle under the condition of a certain total number of grinding heads, improve the flexibility of the whole vehicle, reduce the requirements for the station yard and the station, and can stop at more small stations or station yards for supply.

[0108] (6) The rail grinding heat insulation structure and the rail grinding device described in the specific embodiments of this application have the functions of downward pressure, deflection, and lateral movement for the grinding unit, which can grind the main line of the rail, effectively improving the rail grinding efficiency and the grinding quality. At the same time, the grinding motors have the functions of high-position locking and deflection locking, which can greatly improve the grinding safety and stability.

[0109] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0110] The above is only a preferred embodiment of this application and does not impose any form of limitation on this application. Although this application has been disclosed above with a preferred embodiment, it is not intended to limit this application. Any person skilled in the art can make many possible changes and modifications to the technical solution of this 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 this application without departing from the technical solution of this application still fall within the scope of the protection of the technical solution of this application.

Claims

1. A rail grinding heat insulation structure, characterized in that Comprising: A grinding motor back plate (221), a fireproof and heat-insulating curtain (220), a vertical guide post top plate (214), a vertical guide post bottom plate (217), a frame longitudinal beam (101), a dust collection air inlet (303), an intermediate dust collection port (304), an internal intermediate plate assembly, a side plate assembly and a top plate assembly; the grinding motor back plate (221) is disposed behind the grinding motor (204) of the grinding unit (2), 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 fireproof and heat-insulating 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; a fireproof and dust-proof device (3) is composed of the internal intermediate plate assembly, the side plate assembly and the top plate assembly, and the grinding unit (2) is disposed between the internal intermediate plate assembly, the side plate assembly and the top plate assembly; the area separated by the grinding motor back plate (221), the fireproof and heat-insulating curtain (220) and the internal intermediate plate assembly is a high-temperature area, and the intermediate dust collection port (304) is disposed above the high-temperature area; the area separated by the grinding motor back plate (221), the fireproof and heat-insulating curtain (220), the side plate assembly and the top plate assembly is a low-temperature area, and the dust collection air inlet (303) is disposed above the low-temperature area.

2. The rail grinding heat insulation structure according to claim 1, characterized in that: Also comprising an upper pressing strip (231) and a lower pressing strip (232), one end of the fireproof and heat-insulating curtain (220) is press-fitted above the grinding motor back plate (221) through the lower pressing strip (232), and the other end is press-fitted below the frame longitudinal beam (101) through the upper pressing strip (231).

3. The insulating structure for rail grinding according to claim 1 or 2, characterized in that: The length of the fireproof and heat-insulating curtain (220) can meet the requirement of the maximum deflection angle of the grinding motor (204).

4. A rail grinding device, characterized in that, Comprising: A grinding unit (2) and a heat-insulating structure according to any one of claims 1 to 3.

5. The rail grinding device according to claim 4, characterized in that The grinding unit (2) comprises: a suspension assembly, a unit frame assembly, a grinding motor mounting bracket (205), a motor guiding assembly, a grinding motor (204), 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, and the motor guiding assembly is connected to the grinding motor mounting bracket (205); the grinding motor (204) is slidably connected to the motor guiding assembly, 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).

6. The rail grinding device according to claim 5, characterized in that: The suspension assembly includes a unit suspension plate (201) and a transverse guide post (202). The unit suspension plate (201) is installed on the vehicle frame (1), and two transverse guide posts (202) are installed between two unit suspension plates (201) in parallel with each other.

7. The rail grinding device according to claim 6, 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 post (202) and can slide horizontally along the transverse 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).

8. The rail grinding device according to claim 7, characterized in that: The motor guiding assembly includes a vertical guide post (215) and a sliding back plate (216). The sliding back plate (216) is fixed to the grinding motor (204). The vertical guide posts (215) are installed on a vertical guide post bottom plate (217) in parallel with each other, and a 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).

9. The rail grinding device according to claim 8, characterized in that: There are two grinding motors (204). Four vertical guide posts (215) are installed on the vertical guide post bottom plate (217) in pairs and parallel with each other. Each grinding motor (204) is installed on two vertical guide posts (215). 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.

10. The rail grinding device according to claim 8 or 9, characterized in that: One end of the deflection drive mechanism (211) is installed on the grinding motor mounting bracket (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).

11. The rail grinding device according to claim 10, characterized in that: A reinforcing plate (209) is connected between the vertical guide post top plate (214) and the grinding motor mounting bracket (205).

12. The rail grinding device according to claim 8, 9 or 11, characterized in that: A grinding motor high-position locking assembly (210) is installed on the grinding motor mounting bracket (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 slide base (223), a high-position locking drive mechanism (225) and a locking drive mounting base (226); the fixed slide base (223) is arranged on the vertical guide post bottom plate (217), and the locking drive mounting base (226) is arranged 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 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 back plate (221) of the grinding motor, so as to achieve high-position locking.

13. The rail grinding device according to claim 12, characterized in that: 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 degree, 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), so as to achieve deflection locking, and the position detection travel switch (228) outputs a locking-in-place signal.

14. The rail grinding device according to claim 8, 9, 11 or 13, characterized in that: 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.

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