Treatment Method and Device for Driveshaft under Non-Self-Propelled Condition of Rail Vehicles

Abstract

A method and device for handling the drive shaft of a rail vehicle in a non-self-propelled working condition. This handling method enables the rail vehicle in a non-self-propelled working condition without disassembling the entire drive shaft. By using an auxiliary hoisting facility and a hoisting tool, one end of the drive shaft is disengaged and fixed in a non-driving working position. The drive shaft handling method is a method that can move the drive shaft to a non-driving position through a designed hoisting position on the rail vehicle in a non-self-propelled working condition without disassembling the entire drive shaft. By adopting the method of the present invention, when the rail vehicle is in a non-self-propelled working condition, the drive shaft can neither rotate with the wheels when not disassembled, achieving the purpose of protecting the drive system or a certain drive component, and can also realize the disassembly and assembly operation of the drive shaft through single-person construction, thereby reducing the labor intensity and construction difficulty of construction personnel, reducing the number of vehicle customer service personnel, and saving the company's customer service costs.

Description

Technical Field

[0001] The invention relates to a method and a device for processing a transmission shaft of a rail vehicle in a non-self-propelled working condition. Background Art

[0002] The GCY-1000 heavy-duty railcar (hereinafter referred to as the "railcar") is a high-speed vehicle independently developed by Golden Eagle Heavy Engineering Machinery Co., Ltd. The vehicle can provide traction power for other vehicles on the line for construction and maintenance through coupling. The railcar adopts hydromechanical transmission, and the output torque of the hydraulic transmission box is transmitted to the axle gearbox on the front and rear bogies through the transmission shaft, thereby realizing forward or backward movement. When the vehicle is returned without fire (non-self-propelled working condition), the hydraulic transmission box itself has an idling pump to provide lubricating oil for the output shaft bearing of the neutral transmission box.

[0003] The GCY-1000 heavy-duty rail vehicle is transported to the user's site by fire-free return (non-self-propelled working conditions). In order to avoid abnormalities in the idling pump of the hydraulic transmission box during transportation, if the idling pump does not work, it cannot provide lubricating oil for the output shaft bearing of the transmission box, and the rigid friction causes bearing damage and even rupture of the hydraulic transmission box. Before the vehicle leaves the factory, the company usually removes the two transmission shafts connecting the hydraulic transmission box and the axle gearbox, places them on the vehicle for shipment, and after the vehicle arrives at the user's site, the company sends customer service personnel to remove the transmission shaft from the vehicle and install and reset it. Each transmission shaft is 1800mm long, about 170mm in diameter, and weighs about 250kg. During the disassembly and installation process, at least 3 people are required to squat on the track and carry the transmission shaft on their shoulders. At the same time, 2 people are required to remove and install the bolts and provide safety protection respectively; at least 4 people are required to cooperate in the transportation process of the transmission shaft on and off the vehicle. Due to the small space under the vehicle, the disassembly, transportation and reinstallation processes are not only labor-intensive and time-consuming, but also involve safety risks. They are also prone to causing damage to components, seriously affecting product quality. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies in the existing vehicle design and to provide a method for handling the drive shaft when a rail vehicle is in a non-self-propelled operating condition. The method is achieved by arranging auxiliary lifting facilities, lifting tools, and a drive shaft fixing device for fixing one end of the drive shaft on the rail vehicle. When the rail vehicle is in a non-self-propelled operating condition, the drive shaft can be kept from rotating with the wheels when not disassembled, thereby achieving the purpose of protecting the transmission system or a certain transmission component, and the drive shaft can be disassembled and assembled by a single person, thereby reducing the labor intensity and construction difficulty of the construction personnel, reducing the number of vehicle customer service personnel, and saving the company's customer service costs.

[0005] Another object of the present invention is to provide a transmission shaft processing device for a rail vehicle in a non-self-propelled operating condition.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A method for dealing with the drive shaft of a rail vehicle in a non-self-propelled working condition, enabling the rail vehicle not to disassemble the entire drive shaft in the non-self-propelled working condition. By using an auxiliary hoisting facility and a hoisting tool, one end of the drive shaft is disengaged and fixed in a non-driving working position.

[0008] A method for dealing with the drive shaft of a rail vehicle in a non-self-propelled working condition, by using an auxiliary hoisting facility and a hoisting tool, one end of the drive shaft is disengaged and fixed in a non-driving working position.

[0009] The rail vehicle is a railcar, an overhead line maintenance vehicle, a large and medium-sized track maintenance machine, or an urban rail transit vehicle; its power transmission method is hydraulic transmission, mechanical transmission, electric traction, or hydraulic drive.

[0010] There is an auxiliary hoisting facility at the bottom of the rail vehicle that cooperates with the hoisting tool. The auxiliary hoisting facility is a lifting ring, a lifting rod, or a threaded, flange, or spigot device for installing the lifting ring and the lifting rod.

[0011] The hoisting tool is used to bear the gravity of the drive shaft. When one end of the drive shaft is fixed in the drive system and the other end is disassembled and hoisted with the hoisting tool, the drive shaft will not fall, and the construction worker can move the drive shaft to the non-driving working position with both hands; the hoisting tool can be fixed or not fixed on the rail vehicle. The hoisting tool is a hoist, a lifting belt, a chain, a wire, a winch, an oil cylinder, a cylinder, and also a linkage mechanism.

[0012] A detection device for warning or controlling the running interlock protection is installed on the rail vehicle. The detection device is connected to the vehicle electrical system, and the detection device can send corresponding signals to indicate whether the vehicle drive system meets the requirements of the non-self-propelled working condition.

[0013] The non-driving working position has a mounting device; the mounting device includes a vertical mounting plate and a transition plate. The mounting plate is fixedly arranged, and the disengaged end of the drive shaft is detachably connected to the vertical mounting plate through the transition plate; or the mounting device includes a movable mounting plate, and the movable mounting plate is fixedly connected to the shaft seat through a rotating shaft to form a relative rotation structure; one end of the drive shaft is disengaged to form the disengaged end of the drive shaft.

[0014] The transition plate is provided with through holes corresponding to the connection holes of the disengaged end of the drive shaft, and the mounting plate is provided with adjusting long holes; with the assistance of the lifting tool, when the end face of the disengaged end of the drive shaft corresponds to the mounting plate, the transition plate is placed between the mounting plate and the end face of the disengaged end of the drive shaft, the through holes on the transition plate coincide with the connection holes of the disengaged end of the drive shaft, and the bolt assembly connects the adjusting long holes on the mounting plate through the connection holes of the disengaged end of the drive shaft and the through holes on the transition plate;

[0015] The end face of the disengaged end of the transmission shaft is a flange end face, on which there are a positioning key and connection holes. The thickness of the transition plate is greater than the height of the positioning key protruding from the flange end face. When the connection surface of the mounting plate is connected to the flange end face of the transmission shaft, it is a surface contact.

[0016] The movable mounting plate is provided with mounting holes that cooperate with the connection holes at the disengaged end of the transmission shaft. When the end face of the disengaged end of the transmission shaft corresponds to the movable mounting plate and the movable mounting plate rotates until the mounting holes coincide with the connection holes at the disengaged end of the transmission shaft, the bolt assembly is installed at the mounting holes of the movable mounting plate (7) and the connection holes at the disengaged end of the transmission shaft.

[0017] The end face of the disengaged end of the transmission shaft is a flange end face, on which there are a positioning key and connection holes. There is a circular boss around the movable mounting plate, and a groove for making way for the positioning key is provided on the boss. The depth of the groove is greater than the height of the positioning key protruding from the flange end face. When the connection surface of the movable mounting plate is connected to the flange end face of the transmission shaft, it is a surface contact.

[0018] A processing device for the transmission shaft of a rail vehicle in a non-self-propelled working condition includes a lifting tool for lifting the transmission shaft, an auxiliary lifting facility for cooperating with the lifting tool, and a mounting device for fixing the disengaged end of a certain end of the transmission shaft; the mounting device includes a vertical mounting plate and a transition plate, the mounting plate is fixedly arranged, and the disengaged end of the transmission shaft is detachably connected to the vertical mounting plate through the transition plate; or the mounting device includes a movable mounting plate, and the movable mounting plate is fixedly connected to the axle seat through a rotating shaft to form a relative rotation structure; a certain end of the transmission shaft is disengaged to form a disengaged end of the transmission shaft.

[0019] After the transmission shaft is disassembled, it can be lifted and fixed on the mounting device.

[0020] The vehicle is provided with a lifting ring for fixing the auxiliary lifting equipment. The transmission shaft is lifted through the auxiliary lifting equipment. The lifting ring can be bent into a U shape with round steel or can be formed by punching holes in a plate.

[0021] The mounting device is located above the transmission shaft and is composed of a beam and a mounting plate. The beam can be a straight beam or a special-shaped beam to avoid interference with other equipment.

[0022] The mounting plate can be a fixed type, and the mounting holes on the mounting plate are waist-shaped holes to avoid the situation where the mounting holes of the transmission shaft and the mounting holes on the mounting plate cannot be aligned and cannot be installed when the transmission shaft cannot rotate.

[0023] The mounting plate can be a rotating type. The mounting plate is connected to the rotating shaft, and the rotating shaft can rotate in the bearing. The bearing is connected to the beam through the axle seat. The mounting holes on the mounting plate can be round holes. When the transmission shaft cannot rotate, the mounting holes are aligned by rotating the mounting plate.

[0024] The mounting plate can be fixed. There is a transition plate between the mounting plate and the transmission shaft. The thickness of the transition plate is greater than the height of the positioning key of the transmission shaft protruding from the flange end face, ensuring that the connection surface of the mounting plate and the flange end face of the transmission shaft are in surface contact when connected, and the connection is reliable.

[0025] The mounting plate can be rotatable. There is a boss on the side of the mounting plate near the transmission shaft. The thickness of the boss is greater than the height of the positioning key of the transmission shaft protruding from the flange end face, ensuring that the connection surface of the mounting plate and the flange end face of the transmission shaft are in surface contact when connected, and the connection is reliable.

[0026] The detection device can be arranged on or near the installation device, and is used for warning or controlling the running interlock protection.

[0027] The present invention aims to solve the problems of difficult disassembly and assembly, difficult handling, and high customer service costs of the transmission shaft of existing rail vehicles. By optimizing and improving the disassembly, assembly, and fixing methods of the transmission shaft, an installation device suitable for the transmission shaft of rail vehicles is provided, enabling the disassembly and assembly operation of the transmission shaft to be achieved by a single person, thereby reducing the labor intensity and construction difficulty of construction personnel, reducing the number of vehicle customer service personnel, and saving the company's customer service costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is one of the structural schematic diagrams of the present invention (layout schematic diagram when the installation device adopts a fixed mounting plate);

[0029] Figure 2 It is the second structural schematic diagram of the present invention (layout schematic diagram when the installation device adopts a rotatable mounting plate);

[0030] Figure 3 It is Figure 1 the enlarged view of part A in Figure 2 and the enlarged view of part C in

[0031] Figure 4 It is Figure 1 the enlarged view of part B in Figure 2 and the enlarged view of part D in

[0032] Figure 5 It is Figure 1 the enlarged view of the installation device in

[0033] Figure 6 It is the structural schematic diagram of the mounting plate;

[0034] Figure 7 It is the structural schematic diagram of the transition plate;

[0035] Figure 8 It is Figure 2 the enlarged view of the installation device at part E in DETAILED DESCRIPTION OF THE INVENTION

[0036] The following is combined with the attachedFigure 1 , 3 , 4 describes an embodiment of the present invention.

[0037] As Figure 1 shown, in the drive shaft handling device during the non-self-propelled condition of the rail vehicle, the auxiliary lifting equipment is fixed through the lifting rings 3 and 5, and the drive shafts 2 and 4 are firmly bundled. The axle gearbox ends of the drive shafts 2 and 4 are disassembled, and the lifting operation is performed on the disassembled ends of the drive shafts 2 and 4 through the auxiliary lifting equipment and fixed on the installation devices 1 and 6. The installation devices 1 and 6 are located above the drive shafts and are composed of a beam and a mounting plate. The beam can be a straight beam or a special-shaped beam to avoid interference with other equipment.

[0038] The mounting plate 101 can be fixed. The mounting holes on the mounting plate are waist-shaped holes, which can avoid the situation that when the drive shafts 2 and 4 cannot rotate, the connection holes on the drive shafts cannot align with the mounting holes on the mounting plate and cannot be installed. There is a transition plate 102 between the mounting plate 101 and the drive shaft. The thickness of the transition plate 102 is greater than the height of the positioning key on the drive shaft protruding from the flange end face, ensuring that the connection surface between the mounting plate and the flange end face of the drive shaft is in surface contact and the connection is reliable.

[0039] The drive shaft between the transmission box and the axle gearbox can be one or more. The two ends of the drive shaft body are respectively connected to two power devices (i.e., axle gearboxes), which are rotating body parts capable of realizing power transmission. In this embodiment: there is one drive shaft between the transmission box 13 and the right axle gearbox 14, and there are two drive shafts between the transmission box 13 and the left axle gearbox 14 (as Figure 1 ).

[0040] As Figure 5 , 6 shown, the installation devices 1 and 6 are located above the drive shafts and are composed of a beam one 106 and a mounting plate. The beam one can be a straight beam or a special-shaped beam to avoid interference with other equipment. The upper end of the mounting plate 101 is a mounting seat 105, and the mounting seat 105 is fixed on the beam one 106. The mounting holes on the fixed mounting plate 101 are waist-shaped holes 104. When the drive shafts 2 and 4 cannot rotate during the installation process, the waist-shaped holes of the mounting holes can ensure that the flange mounting surfaces of the drive shafts 2 and 4 can be connected to the mounting plate through at least 3 bolts at any angle.

[0041] As Figure 7 shown, the transition plate adopts a semi-circular ring structure. There are protruding positioning keys on the flange end faces of the drive shafts 2 and 4. The mounting plate cannot be closely fixed to the flange end faces of the drive shafts 2 and 4. By setting transition plates on both sides of the positioning keys, the two connection surfaces are in smooth contact and the connection is reliable. At the same time, to reduce the weight, the transition plate uses a ring structure.

[0042] Figure 2 , 8In it, the movable mounting plate 7 can be rotatable. The movable mounting plate 7 has a boss on the side of the transmission shaft. The thickness of the boss is greater than the height of the positioning key of the transmission shaft protruding from the flange end face, ensuring that the connection surface of the mounting plate is in surface contact with the flange end face of the transmission shaft when connected, and the connection is reliable. The movable mounting plate 7 is connected to the rotating shaft 8, and the rotating shaft 8 can rotate in the bearing. The bearing is connected to the beam 10 through the bearing seat 9, and the beam 10 is fixed to the bottom of the rail vehicle. The mounting holes on the movable mounting plate 7 can be round holes. When the transmission shaft cannot rotate, the mounting holes can be aligned by rotating the movable mounting plate 7.

[0043] For the transmission shaft processing device of the rail vehicle in the non-self-propelled working condition of the present invention, by adding a mounting device above the transmission shaft, after the single-end disassembly of the transmission shaft, the lifting equipment can be fixed at the lifting ring to realize the lifting of the transmission shaft, so that the transmission shaft is directly suspended under the vehicle, without the need for the whole shaft to be disassembled, reducing the labor intensity and construction difficulty of the construction personnel, reducing the number of vehicle customer service personnel, and saving the company's customer service costs.

[0044] The specific embodiments of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A method for dealing with the drive shaft of a rail vehicle in a non-self-propelled condition, enabling the rail vehicle not to disassemble the entire drive shaft in the non-self-propelled condition, characterized in that: Using a lifting tool through an auxiliary lifting facility, disconnect one end of the drive shaft and fix it at a non-driving working position; after the single-end disassembly of the drive shaft, the drive shaft can be lifted and lowered through the fixed lifting tool at the auxiliary lifting facility. There is an auxiliary lifting facility at the bottom of the rail vehicle that cooperates with the lifting tool. The auxiliary lifting facility is a lifting ring or a lifting rod or a threaded, flanged or spigot device for installing the lifting ring or the lifting rod. The lifting tool is used to bear the gravity of the drive shaft. When one end of the drive shaft is fixed in the drive system and the other end is disassembled and lifted by the lifting tool, the drive shaft will not fall, and the constructor can move the drive shaft to the non-driving working position with both hands. The lifting tool is fixed or not fixed on the rail vehicle. The lifting tool is a hoist, a lifting belt, a chain, a wire, a winch, an oil cylinder, a cylinder or a linkage mechanism. The non-driving working position has a mounting device; the mounting device includes a vertical mounting plate (101) and a transition plate (102). The vertical mounting plate (101) is fixedly arranged, and the disconnected end of the drive shaft is detachably connected to the vertical mounting plate (101) through the transition plate (102); or the mounting device includes a movable mounting plate (7), and the movable mounting plate (7) is fixedly connected to the axle seat (9) through a rotating shaft (8) to form a relative rotating structure. The rotating shaft (8) can rotate in the bearing, and the bearing is connected to the beam (10) through the axle seat (9). The beam (10) is fixed to the bottom of the rail vehicle. The beam is a straight beam or a special-shaped beam; one end of the drive shaft is disconnected to form a disconnected end of the drive shaft.

2. The processing method of the transmission shaft under the non-self-propelled working condition of a rail vehicle according to claim 1, wherein: The rail vehicle is a railcar, an overhead line maintenance vehicle, a large or medium-sized track maintenance machine or an urban rail transit vehicle. Its power transmission method is hydraulic transmission, mechanical transmission, electric traction or hydraulic drive.

3. The processing method of the transmission shaft under the non-self-propelled condition of a rail vehicle according to claim 1, wherein: Install a detection device for warning or controlling the running interlock protection on the rail vehicle. The detection device is connected to the vehicle electrical system, and the detection device can send corresponding signals to indicate whether the vehicle drive system meets the requirements of the non-self-propelled working condition.

4. The processing method of the transmission shaft under the non-self-propelled working condition of a rail vehicle according to claim 1, characterized in that: The transition plate (102) is provided with through holes (103) corresponding to the connection holes at the disconnected end of the drive shaft. The vertical mounting plate (101) is provided with adjusting long holes (104); when the end face of the disconnected end of the drive shaft corresponds to the vertical mounting plate (101), the transition plate (102) is placed between the vertical mounting plate (101) and the end face of the disconnected end of the drive shaft. The through holes on the transition plate (102) coincide with the connection holes of the disconnected end of the drive shaft. The bolt assembly connects the adjusting long holes (104) on the vertical mounting plate (101) through the connection holes at the disconnected end of the drive shaft and the through holes (103) on the transition plate (102). The end face of the disconnected end of the drive shaft is a flange end face. There are positioning keys and connection holes on the flange end face. The thickness of the transition plate (102) is greater than the height of the positioning key above the flange end face. When the connecting surface of the vertical mounting plate (101) is connected to the flange end face of the drive shaft, it is a surface contact.

5. A processing method for a drive shaft under non-self-propelled working conditions of a rail vehicle according to claim 1, characterized in that: An installation hole matching the connection hole at the disengaged end of the transmission shaft is provided on the movable mounting plate (7). When the end face of the disengaged end of the transmission shaft corresponds to the movable mounting plate (7) and the movable mounting plate (7) rotates until the installation hole coincides with the connection hole at the disengaged end of the transmission shaft, the bolt assembly is installed at the installation hole of the movable mounting plate (7) and the connection hole at the disengaged end of the transmission shaft. The end face of the disengaged end of the transmission shaft is a flange end face, on which there are a positioning key and a connection hole. There is a ring of bosses around the movable mounting plate (7), and a groove for allowing the positioning key to pass through is provided on the bosses. The depth of the groove is greater than the height of the positioning key protruding from the flange end face. When the connection surface of the movable mounting plate (7) is connected to the flange end face of the transmission shaft, it is a surface contact.

6. A processing device for a drive shaft in a non-self-propelled working condition of a rail vehicle using the processing method according to claim 1, characterized in that: It includes a hoisting tool for hoisting the transmission shaft, an auxiliary hoisting facility for cooperating with the hoisting tool, and an installation device for fixing the disengaged end of the transmission shaft; the installation device includes a vertical mounting plate (101) and a transition plate (102). The vertical mounting plate (101) is fixedly arranged, and the disengaged end of the transmission shaft is detachably connected to the vertical mounting plate (101) through the transition plate (102); or the installation device includes a movable mounting plate (7), and the movable mounting plate (7) is fixed on the shaft seat (9) through a rotating shaft (8) to form a relative rotation structure; one end of the transmission shaft is disengaged to form a disengaged end of the transmission shaft.

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