A rail grinding vehicle with double cab driven by motor

Abstract

This utility model discloses a dual-cab rail grinding vehicle with a motor-driven grinding wheel, including a frame (3), with a driver's cab (1) located above the front and rear ends of the frame (3); a power bogie (4) and a driven bogie (5) are respectively installed on both sides of the grinding device (2) in the middle of the lower part of the frame (3); the area between the two driver's cabs (1) above the frame (3) is the equipment installation area, and pedestrian walkways (6) are provided between the two driver's cabs (1) and the equipment installation area; external corridors are provided on the left and right sides of the equipment installation area to connect the pedestrian walkways (6). The single grinding vehicle has a driver's cab at both ends, which is convenient for control. The grinding wheel of a set of grinding devices has high precision. The overall vehicle size is small, the grinding range is large, the structure is compact, safe and reliable, and easy to manufacture. It can perform independent grinding operations, effectively repair various types of rail defects, improve wheel-rail relationship, and increase the service life of rails.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology, specifically to the field of railway engineering machinery technology, and in particular to a dual-cab rail grinding vehicle with a motor-driven grinding wheel. Background Technology

[0002] Rail grinding machines are indispensable equipment in railway maintenance. They can grind the surfaces of rails that have developed defects due to use, eliminating problems such as fatigue cracks, wavy wear, and abrasion, thus extending the service life of the rails and improving the safety and comfort of train operation. With the development and promotion of rail grinding technology, more and more high-speed railways, heavy-haul railways, and urban rail transit are adopting this technology to extend rail life and reduce maintenance costs. At the same time, the form of rail grinding has also evolved from the initial repair grinding to maintenance grinding, and now to the particularly popular "frequent, rapid, and light" preventive grinding.

[0003] like Figure 1 The image shows a rail grinding vehicle for urban subways in the prior art. The entire vehicle consists of two individual grinding cars 100 coupled together. The two individual grinding cars 100 have a centrally symmetrical structure, with each individual grinding car 100 having a driver's cab 1, located at both ends of the vehicle. Each individual grinding car 100 has a grinding device 2 with eight grinding heads, totaling sixteen grinding heads in two groups. This, along with steering, drive, and control components, is a common setup and will not be described further. Because the rail grinding vehicle composed of two coupled individual grinding cars 100 is relatively long, the grinding area cannot be fully covered, especially in long areas before and after turnouts, sometimes up to 300 meters where grinding is not possible. Furthermore, the two groups of grinding heads result in a large number of grinding wheels, leading to significant deviations in the accuracy of the grinding wheel impact points. The overall manufacturing process is complex and costly. Summary of the Invention

[0004] The purpose of this invention is to provide a dual-cab rail grinding vehicle with a motor-driven grinding wheel. The single grinding vehicle has a driver's cab at both ends for convenient control. One set of grinding devices provides high precision in grinding wheel placement. The vehicle is compact in size, has a large grinding range, and is structurally sound, safe, reliable, and easy to manufacture. It can operate independently, effectively repairing various types of rail defects, improving wheel-rail relationships, and increasing rail service life.

[0005] The technical solution provided by this utility model is as follows:

[0006] A dual-cab rail grinding vehicle with motor-driven grinding wheels includes a frame 3, with a driver's cab 1 located above the front and rear ends of the frame 3.

[0007] A grinding device 2 is provided at the lower center of the frame 3; a power bogie 4 and a driven bogie 5 are respectively provided on both sides of the grinding device 2;

[0008] The area between the two driver cabs 1 above the frame 3 is the equipment installation area, and pedestrian corridors 6 are provided between the two driver cabs 1 and the equipment installation area; external corridors are provided on the left and right sides of the equipment installation area to connect with the pedestrian corridors 6.

[0009] The equipment installed in the equipment installation area includes a water tank 7 for a water supply device, a dust collection device 8, a diesel generator drive device 9, a pneumatic control device 11, a hydraulic control device 12, and a cooling device 13.

[0010] Preferably, the driver's cab 1 is equipped with an operation control console, and the operation control consoles of the two driver's cabs 1 are interlocked.

[0011] Preferably, the diesel engine generator drive device 9 includes a diesel engine 901, a generator 902, a transfer case 903, and a fuel tank 10;

[0012] The diesel engine 901 is connected to and drives the generator 902 to generate electricity, and the generator 902 supplies power to the motor of the grinding device 2; the diesel engine 901 is also connected to and drives the hydraulic pump 1201 of the hydraulic control device 12 through the transfer case 903.

[0013] Preferably, the power bogie 4 includes two sets of hydraulic motors 401 and two sets of gearboxes 402; the hydraulic control device 12 is connected to the hydraulic motors 401 and provides power to the power bogie 4 through the hydraulic motors 401 and the gearboxes 402.

[0014] Preferably, the lower end of the frame 3 is provided with a first air conditioner outdoor unit 14 and a brake valve group 15 at one end, and a second air conditioner outdoor unit 16 and a battery box 17 at the other end.

[0015] Preferably, a water pump unit 18 and an air source device 21 with a water supply device are provided between one side of the grinding device 2 under the frame 3 and the power bogie 4 or the driven bogie 5.

[0016] Preferably, the frame 3 has a symmetrical structure, consisting of two end plates 301 and two side beams 302 welded together to form a square frame; two bolster beams 303 are symmetrically welded on both sides laterally; multiple intermediate beams 304 are welded to the two bolster beams 303; a traction beam 305 is welded longitudinally at the center between the bolster beams 303 and the end plates 301; a reinforcing beam 306 is obliquely welded between the bolster beams 303 and the side beams 302; and two transverse auxiliary beams 307 are symmetrically welded longitudinally between the two bolster beams 303.

[0017] Preferably, the outer corridor edge is provided with a safety handrail 19.

[0018] Preferably, the frame 3 is provided with a coupler assembly 20 at both ends.

[0019] As can be seen from the technical solution provided by this utility model above, the dual-cab rail grinding vehicle with motor-driven grinding wheels provided by this utility model has driver's cabs at both ends of the single grinding vehicle, making it easy to control. A set of grinding devices provides high precision in grinding wheel placement. The vehicle is small in size, has a large grinding range, and features a compact structure, safety, reliability, and ease of manufacturing. It can perform independent grinding operations, effectively repair various types of rail defects, improve wheel-rail relationships, and increase the service life of the rails. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the front view structure of a rail grinding vehicle used in urban subways in the prior art.

[0022] Figure 2 This is a schematic diagram of the main structure of a dual-cab rail grinding vehicle with a motor-driven grinding wheel provided in an embodiment of the present invention.

[0023] Figure 3 A top view of the equipment on the dismantling frame of a dual-cab rail grinding vehicle with a motor-driven grinding wheel provided in an embodiment of this utility model.

[0024] Figure 4 A schematic diagram of the left side of the dual-cab rail grinding vehicle with motor-driven grinding wheels provided in this embodiment of the utility model;

[0025] Figure 5 A schematic diagram of the main structure of the power bogie of the dual-cab rail grinding vehicle with motor-driven grinding wheel provided in an embodiment of this utility model;

[0026] Figure 6 A top view of the power bogie structure of a dual-cab rail grinding vehicle with a motor-driven grinding wheel provided in an embodiment of this utility model;

[0027] Figure 7 A schematic diagram of the diesel generator drive device for a dual-cab rail grinding vehicle with a motor-driven grinding wheel provided in an embodiment of this utility model.

[0028] Figure 8 A schematic diagram of the frame structure of a dual-cab rail grinding vehicle with a motor-driven grinding wheel provided in an embodiment of this utility model. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] First, the following explanations are provided for the terms that may be used in this article:

[0031] The term "and / or" means that either or both can be achieved simultaneously. For example, X and / or Y means that it includes both "X" or "Y" as well as the three cases of "X and Y".

[0032] The terms "comprising," "including," "containing," "having," or other similar semantic descriptions should be interpreted as non-exclusive inclusion. For example, including a technical feature element (such as raw material, component, ingredient, carrier, dosage form, material, size, part, component, mechanism, device, step, process, method, reaction conditions, processing conditions, parameter, algorithm, signal, data, product or article of manufacture, etc.) should be interpreted as including not only the expressly listed technical feature element, but also other technical feature elements that are not expressly listed and are well-known in the art.

[0033] The term "composed of" excludes any technical features not expressly listed. When used in a claim, it closes the claim to exclude all technical features other than those expressly listed, except for associated conventional impurities. If the term appears only in a clause of a claim, it limits the claim to the elements expressly listed in that clause; elements recited in other clauses are not excluded from the overall claim.

[0034] The term "parts by mass" indicates the mass ratio between multiple components. For example, if component X is described as x parts by mass and component Y as y parts by mass, then the mass ratio of component X to component Y is x:y. One part by mass can represent any mass; for example, one part by mass can be expressed as 1 kg or 3.1415926 kg, etc. The sum of the parts by mass of all components is not necessarily 100 parts; it can be greater than 100 parts, less than 100 parts, or equal to 100 parts. Unless otherwise stated, parts, proportions, and percentages mentioned herein are all measured by mass.

[0035] Unless otherwise explicitly specified or limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this document according to the specific circumstances.

[0036] When concentration, temperature, pressure, size, or other parameters are expressed as numerical ranges, such ranges should be understood to specifically disclose all ranges formed by any pairing of upper limits, lower limits, or preferred values ​​within that range, regardless of whether the range is explicitly stated; for example, if the numerical range "2 to 8" is stated, then that range should be interpreted to include ranges such as "2 to 7", "2 to 6", "5 to 7", "3 to 4 and 6 to 7", "3 to 5 and 7", "2 and 5 to 7", etc. Unless otherwise stated, the numerical ranges described herein include both their endpoints and all integers and fractions within that range.

[0037] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” and “counterclockwise” 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 and simplification of description and do not imply that the device or component 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 document.

[0038] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0039] Example

[0040] like Figures 2 to 4As shown, a dual-cab rail grinding vehicle with a motor-driven grinding wheel is used for rail grinding and repair in railways and subways. Structurally, it includes a frame 3, with a driver's cab 1 located at each of the front and rear ends of the frame 3. Each driver's cab 1 contains an operating control console, allowing operators to control the vehicle's operation. Both driver's cabs 1 can perform all necessary rail grinding functions, including operation control, system monitoring, and emergency handling. The operating control consoles of the two driver's cabs 1 are interlocked; that is, the control permissions of both driver's cabs 1 are interlocked. When an operator in one driver's cab 1 is operating, the corresponding operation function in the other driver's cab 1 is automatically locked to prevent misoperation. Both driver's cabs 1 are equipped with electrical cabinets to meet the control requirements of the grinding operation. The interlocking can be mechanical, electronic, or both.

[0041] In this example, a grinding device 2 is located at the lower center of the frame 3. This example has only one grinding device 2, equipped with an eight-motor connected grinding wheel structure, ensuring high precision in the grinding wheel's impact point. The grinding device 2 can utilize existing technology, achieving rail grinding operations through combined electrical and hydraulic control. A power bogie 4 and a driven bogie 5 are respectively installed on both sides of the grinding device 2. The power bogie 4 and driven bogie 5 employ a two-stage suspension system: a primary suspension with coil springs and a secondary suspension with rubber stack side bearings. The side bearings bear the entire weight of the upper equipment, ensuring good dynamic performance of the tractor. Figure 5 and 6 As shown, the power bogie 4 includes two sets of hydraulic motors 401 and two sets of gearboxes 402; the hydraulic control device 12 is connected to the hydraulic motors 401 and provides power to the power bogie 4 through the hydraulic motors 401 and gearboxes 402. Specifically, the power bogie 4 structurally includes an I-beam frame 405, four wheels 403, and two axles 404. The I-beam frame 405 is centrally symmetrical in an "I" shape, and the frame 3 is connected at the center of the straight arm of the I-beam frame 405; specifically, it is hinged to the frame 3 through a center pin 406. This connection method of the center pin is the same as the existing connection method between the power bogie and the frame 3, and will not be described again. Four wheels 403 are mounted on the lower ends of the two horizontal arms of the I-beam frame 405 through two axles 404 respectively. Two sets of gearboxes 402 are respectively installed in the middle of the two axles 404. The hydraulic motor 401 is connected to the gearboxes 402 and drives the axles 404 to rotate through the gearboxes 402, providing power to the power bogie 4. The driven bogie 5 does not have the hydraulic motor 401 and gearboxes 402. The rest of its structure is the same as that of the power bogie 4, and will not be described in detail.

[0042] In this example, the area between the two driver cabs 1 above the frame 3 is the equipment installation area, and the two driver cabs 1 and the equipment installation area are respectively provided with pedestrian corridors 6 to facilitate the operation of personnel to enter and exit the driver cabs 1 and walk. The equipment installation area is provided with external corridors on the left and right sides to connect with the pedestrian corridors 6, forming the vehicle's external corridor, and the edge of the external corridor is provided with a safety handrail 19.

[0043] In this example, the equipment installed in the equipment installation area includes a water tank 7 for the water supply device, a dust collection device 8, a diesel generator drive device 9, a pneumatic control device 11, a hydraulic control device 12, and a cooling device 13. These devices can all utilize existing technical solutions, and their locations can be designed reasonably, requiring only the provision of an external corridor and a pedestrian corridor 6; further details are omitted.

[0044] Here, the dust collection device 8 collects iron filings and dust generated during the steel grinding device's grinding of the rails, preventing dust pollution and protecting the environment. The pneumatic control device 11 and hydraulic control device 12 are used to control the braking and grinding devices. The pneumatic control device 11 includes a pneumatic control cabinet for cylinder control. The hydraulic control device 12 includes a hydraulic oil tank to store hydraulic oil for the hydraulic system. The cooling device 13 consists of three aluminum radiators mounted on a steel frame, each corresponding to the diesel engine's air intake, coolant, and hydraulic oil cooling. The cooling fan is driven by a hydraulic motor.

[0045] like Figure 7 As shown, the diesel generator drive unit 9 can be set up in a separate diesel generator room, consisting of two louvered side walls and a top cover end wall. The diesel generator drive unit 9 provides stable power and electrical output for the rail grinding vehicle, including a diesel engine 901, a generator 902, a transfer case 903, and a fuel tank 10. The diesel engine 901 is connected to the transfer case 903, which is connected to the hydraulic pump 1201 of the hydraulic control device 12 and the grinding device 2. It is also connected to the generator 902 via a universal joint, driving the generator 902 to generate electricity. The generator 902 supplies power to the motor of the grinding device 2 and also powers the entire vehicle. The fuel tank 10 meets the fuel storage needs of the diesel engine 901.

[0046] In this example, the lower part of the frame 3 has a first air conditioner outdoor unit 14 and a brake valve assembly 15 at one end and a second air conditioner outdoor unit 16 and a battery box 17 at the other end. The lower part of the frame 3 meets the installation and fixing requirements of the split-type air conditioner outdoor unit, and the two air conditioners are used by the two driver's cabs 1 respectively. The brake valve assembly 15 adopts a standard JZ7 braking system, and the battery box 17 consists of 20 DC 1.2V 170Ah lead-acid battery cells connected in series to form a DC 24V voltage, providing starting power for the diesel engine.

[0047] In this example, a water pump unit 18 and an air source unit 21 are installed between one side of the grinding device 2 under the frame 3 and the power bogie 4 or driven bogie 5, respectively. The water pump unit 18 is connected to a water tank 7, which stores water for the sprinkler system and fire fighting. The water pump unit 18 provides the power source for the sprinkler system and fire fighting. The air source unit 21 provides dry compressed air for the entire vehicle. The compressed air is mainly used for the braking system, grinding device, and whistle. The air source unit 21 includes a standard-sized air compressor, air tank, and dryer to meet the air requirements for traction braking and auxiliary air.

[0048] In this example, the installation positions of the first outdoor air conditioning unit 14, the brake valve assembly 15, the second outdoor air conditioning unit 16, the battery box 17, the water pump unit 18, and the air source device 21 are not necessarily as described above. Technicians can arrange them reasonably according to the structure. The brake valve assembly 15, the battery box 17, the water pump unit 18, and the air source device 21 can adopt existing technical solutions, which will not be elaborated further.

[0049] like Figure 8 As shown, the frame 3 has a symmetrical structure, consisting of two end plates 301 welded to two side beams 302 to form a square frame; two bolster beams 303 are symmetrically welded to both sides laterally; multiple intermediate beams 304 are welded to the two bolster beams 303; a traction beam 305 is welded longitudinally at the center between the bolster beams 303 and the end plates 301; a reinforcing beam 306 is welded obliquely between the bolster beams 303 and the side beams 302; and two transverse auxiliary beams 307 are symmetrically welded longitudinally between the two bolster beams 303. Additionally, auxiliary beams are welded according to structural requirements; the specific locations and quantities can be designed by technicians and will not be elaborated further.

[0050] In this example, each beam is constructed using high-strength H-beams or welded from high-strength thick plates. It features a simple structure, high strength, and ease of manufacture.

[0051] In this example, refer to Figure 4 The frame 3 is equipped with coupler assemblies 20 at both ends. The coupler assemblies 20 use universal couplers that connect with relevant vehicles. For example, coupler No. 17 can accurately connect with C70 trucks.

[0052] advantage:

[0053] I. The design features two driver's cabs for convenient operation.

[0054] Second, a set of grinding devices with no relative error and high precision in the landing point of the grinding wheel.

[0055] Third, the overall vehicle size is small, allowing for a large grinding area.

[0056] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A dual-cab rail grinding vehicle with a motor-driven grinding wheel, characterized in that, Includes a frame (3), with a driver's cab (1) located above the front and rear ends of the frame (3); A grinding device (2) is provided in the middle of the lower part of the frame (3); a power bogie (4) and a driven bogie (5) are respectively provided on both sides of the grinding device (2); The area between the two driver cabs (1) above the frame (3) is the equipment installation area, and the two driver cabs (1) and the equipment installation area are respectively provided with pedestrian corridors (6); the equipment installation area is provided with external corridors on the left and right sides to connect with the pedestrian corridors (6). The equipment installed in the equipment installation area includes a water tank (7) for a water supply device, a dust collection device (8), a diesel generator drive device (9), a pneumatic control device (11), a hydraulic control device (12), and a cooling device (13).

2. The dual-cab rail grinding machine with motor-driven grinding wheel according to claim 1, characterized in that, The driver's cab (1) is equipped with an operation control console, and the operation control consoles of the two driver's cabs (1) are interlocked.

3. The dual-cab rail grinding machine with a motor-driven grinding wheel according to claim 1 or 2, characterized in that, The diesel generator drive unit (9) includes a diesel engine (901), a generator (902), a transfer case (903), and a fuel tank (10). The diesel engine (901) is connected to and drives the generator (902) to generate electricity, and the generator (902) supplies power to the motor of the grinding device (2); the diesel engine (901) is also connected to and drives the hydraulic pump (1201) of the hydraulic control device (12) through the transfer case (903).

4. The dual-cab rail grinding machine with a motor-driven grinding wheel according to claim 1 or 2, characterized in that, The power bogie (4) includes two sets of hydraulic motors (401) and two sets of gearboxes (402); the hydraulic control device (12) is connected to the hydraulic motors (401) and provides power to the power bogie (4) through the hydraulic motors (401) and the gearboxes (402).

5. The dual-cab rail grinding machine with a motor-driven grinding wheel according to claim 1 or 2, characterized in that, The vehicle frame (3) has a first air conditioning unit (14) and a brake valve assembly (15) at one end of the lower front and rear ends, and a second air conditioning unit (16) and a battery box (17) at the other end.

6. The dual-cab rail grinding machine with a motor-driven grinding wheel according to claim 1 or 2, characterized in that, A water pump unit (18) and an air source device (21) are provided between one side of the grinding device (2) under the frame (3) and the power bogie (4) or driven bogie (5).

7. The dual-cab rail grinding machine with a motor-driven grinding wheel according to claim 1 or 2, characterized in that, The frame (3) is symmetrical in structure, consisting of two end plates (301) and two side beams (302) welded into a square frame; two bolster beams (303) are symmetrically welded on both sides in the transverse direction; multiple intermediate beams (304) are welded to the two bolster beams (303); a traction beam (305) is welded longitudinally between the bolster beam (303) and the end plate (301); a reinforcing beam (306) is welded obliquely between the bolster beam (303) and the side beam (302); and two transverse auxiliary beams (307) are symmetrically welded longitudinally between the two bolster beams (303).

8. The dual-cab rail grinding machine with a motor-driven grinding wheel according to claim 1 or 2, characterized in that, The outer corridor is equipped with safety handrails (19) at its edge.

9. The dual-cab rail grinding machine with a motor-driven grinding wheel according to claim 1 or 2, characterized in that, The frame (3) is provided with coupler assemblies (20) at both ends.

Images