CN115257825A - Railway vehicle bogie and driving unit thereof - Google Patents
Railway vehicle bogie and driving unit thereof Download PDFInfo
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- CN115257825A CN115257825A CN202211039233.3A CN202211039233A CN115257825A CN 115257825 A CN115257825 A CN 115257825A CN 202211039233 A CN202211039233 A CN 202211039233A CN 115257825 A CN115257825 A CN 115257825A
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- Prior art keywords
- shock absorber
- seat
- connecting disc
- input end
- outer side
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
- B61C9/48—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
- B61C9/50—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/32—Guides, e.g. plates, for axle-boxes
- B61F5/325—The guiding device including swinging arms or the like to ensure the parallelism of the axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a railway vehicle bogie and a driving unit thereof. The driving unit comprises a permanent magnet direct-drive traction motor, a coupler output end, a coupler input end and a transmission shaft sleeve; an output end inner side connecting disc, an output end outer side connecting disc and a first laminated sheet group are sequentially arranged on one side of the output end of the transmission shaft sleeve, and an input end inner side connecting disc, an input end outer side connecting disc and a second laminated sheet group are sequentially arranged on one side of the input end of the transmission shaft sleeve; the outer connecting disc of the output end is fixedly connected with the fluted disc on the end face of the transmission shaft sleeve; the input end inner side connecting disc is fixedly connected with the transmission shaft sleeve through an end face fluted disc, and the input end outer side connecting disc is connected with the hollow axle through interference fit. Compared with the traditional bogie, the total weight of the bogie is reduced by about 10 percent, the traction energy consumption and the wheel rail abrasion are reduced, and the maintenance and overhaul period is prolonged.
Description
Technical Field
The invention relates to a railway vehicle bogie and a driving unit thereof, belonging to the technical field of railway vehicles.
Background
With the increasing importance of the life cycle cost of railway products in various countries, how to reduce the life cycle cost of vehicles, improve the passenger carrying capacity of vehicles in operation and reduce the track maintenance cost has become an important research direction of rail vehicles.
The Chinese patent application CN114248815A discloses a railway vehicle bogie adopting a double-shaft box suspension and a permanent magnet direct drive motor, wherein a whole wheel set of the bogie is provided with a primary suspension device of an axle box inside and outside each wheel, the motor adopts a shaft suspension type, a driving device adopts a permanent magnet synchronous motor to be directly driven and installed on a left inner shaft box body and a right inner shaft box body, and the mode of adopting the shaft suspension and the direct drive of the motor obviously reduces the axle distance of the bogie and is beneficial to reducing the dead weight of the bogie. However, the torque of the traction motor of CN114248815a is transmitted by the fixing pin, and the traction motor adopts the axle suspension manner, and the traction motor and the axle are rigidly connected into a whole, which results in that the unsprung mass is not significantly reduced, and the traction energy consumption and the wheel rail wear are high, which is not favorable for reducing the life cycle cost of the vehicle and the rail.
Disclosure of Invention
The invention aims to provide a railway vehicle bogie and a driving unit thereof, wherein the driving unit can reduce the total weight of the bogie by about 10 percent, simultaneously reduce the traction energy consumption and the wheel rail abrasion, prolong the maintenance and repair period and reduce the service life period cost of vehicles and rails.
In order to achieve the purpose, the invention adopts the technical scheme that:
a driving unit of a railway vehicle bogie is structurally characterized by comprising a permanent magnet direct-drive traction motor, a coupler output end, a coupler input end and a transmission shaft sleeve;
an output end inner side connecting disc, an output end outer side connecting disc and a first laminated sheet group are sequentially arranged on one side of the output end of the transmission shaft sleeve, and an input end inner side connecting disc, an input end outer side connecting disc and a second laminated sheet group are sequentially arranged on one side of the input end of the transmission shaft sleeve;
at the output end of the coupler, the connecting disc outside the output end is fixedly connected with the fluted disc on the end face of the transmission shaft sleeve, and the connecting disc inside the output end and the connecting disc outside the output end transmit torque through the first laminated sheet set;
at the input end of the coupler, a connecting disc on the inner side of the input end is fixedly connected with the transmission shaft sleeve through an end face fluted disc, and a connecting disc on the outer side of the input end is connected with the hollow axle through interference fit; the input end inner side connecting disc and the input end outer side connecting disc transmit torque through the second laminated sheet set.
According to the embodiment of the invention, the invention can be further optimized, and the following is a technical scheme formed after optimization:
in one of the preferred embodiments, the coupler output end comprises a laminated bolt, a first mounting pad, a second mounting pad, a first laminated stack, a first bolt stack, an output end outer connecting disc, a taper sleeve, a second bolt stack and an output end inner connecting disc;
the input end of the coupler comprises an input end inner side connecting disc, a third bolt group, an input end outer side connecting disc, a second laminated group, laminated bolts, a first mounting pad, a second mounting pad and a taper sleeve.
And the laminated bolts in the output end of the coupler and the input end of the coupler are connected and fastened with the taper sleeve through threads to realize torque transmission between the permanent magnet direct-drive traction motor and the hollow axle.
Based on the same inventive concept, the invention also provides a railway vehicle bogie which comprises a framework, a primary suspension device, a driving unit, a secondary suspension device, a foundation braking device, a wheel-pair axle box assembly, a traction device and an anti-rolling device; the frame is assembled to the axle box through a series of suspension connecting wheels, the end parts of the left and right side beams of the frame are suspended with driving units through a plurality of elastic suspension units, and the driving units are arranged on the hollow axle through the input end of a coupler; the clamp of the foundation braking device is hung on the outer side of the side beam of the framework, the secondary suspension device is installed on the outer side of the middle of the framework, the traction device is installed in the middle of the framework, the anti-rolling devices are installed on two sides of the cross beam in the middle of the framework, and the anti-snaking shock absorbers are installed on the outer side of the middle of the side beam of the framework.
In one preferred embodiment, the frame includes a cross member at a middle portion and side members at both ends of the cross member; the motor suspension support is arranged on the inner side of the end portion of the side beam, the transverse stopping seat is arranged in the middle of the side beam, the secondary suspension mounting seat is arranged on the outer side of the middle of the side beam, the anti-snaking shock absorber mounting seat is arranged on the upper portion of the outer side of the secondary suspension mounting seat, the secondary vertical shock absorber mounting seat is arranged on the lower portion of the outer side of the secondary suspension mounting seat, the axle box pull rod seat is arranged at the bottom of the middle of the side beam, the anti-rolling mounting seat is arranged on the lower portion of two sides of the cross beam, the transverse shock absorber mounting seat is arranged on one side of the upper portion of the cross beam, and the brake suspension seat is arranged on the outer side of the middle of the side beam.
In one preferred embodiment, the primary suspension assembly comprises a series of rubber springs mounted on top of the axle housing, a series of vertical shock absorbers and a single axle housing drawbar assembly hinged to the axle housing; the secondary suspension device comprises air springs, secondary vertical shock absorbers, secondary transverse shock absorbers and anti-snaking shock absorbers which are arranged on two sides of the middle part of the framework; the bottom of the secondary vertical shock absorber is fastened on the secondary vertical shock absorber mounting seat, the bottom of the secondary transverse shock absorber is fastened on the transverse shock absorber mounting seat, the head of the secondary transverse shock absorber is fastened on the transverse shock absorber seat, and the bottom of the anti-snake shock absorber is fastened on the anti-snake shock absorber mounting seat; and the air spring, the secondary vertical shock absorber and the anti-snaking shock absorber are connected with the vehicle body when the unconnected end falls down.
In one preferred embodiment, the foundation brake device comprises a brake clamp arranged on a brake hanging seat on the outer side of the side beam of the frame, the brake clamp and an integral wheel and an wheel-mounted brake disc in the assembly of the wheel-set axle box form a wheel disc brake type arranged in the middle of the brake clamp, and the wheel-mounted brake disc is fixedly arranged on the integral wheel through a bolt and a limit spigot.
In one preferred embodiment, the wheel-pair axle box assembly comprises an integral wheel pressed on two ends of a hollow axle and a wheel brake disc, an axle box assembly and a speed measuring gear which are tightly installed on the integral wheel; the axle box is assembled and installed on the inner side of the wheel, and the speed measuring gear is installed on the hollow axle through the limiting spigot; the traction device comprises a traction seat arranged on the vehicle body, a transverse shock absorber seat arranged on the traction seat, a rubber pile arranged in the middle of a frame beam, a connecting seat and a transverse stop assembly; the connecting seat is installed in the traction seat bottom, and the rubber heap is installed in the connecting seat both sides, and horizontal backstop assembly installs on horizontal backstop seat.
In one preferred embodiment, the anti-roll device comprises a rubber bushing, a torsion bar, a crank arm and a tension and compression bar assembly which are arranged on anti-roll mounting seats on two sides of a framework beam; the torsion bar penetrates through the rubber shaft sleeve, and two ends of the torsion bar are arranged on the tension and compression bar through the crank arms for assembly; preferably two sets of said anti roll devices are arranged per bogie.
In one preferred embodiment, the elastic suspension unit comprises a screw, an adjusting washer, a rubber seat, a distance sleeve, a nut and a gland; the head of the screw is tightly attached to the motor suspension support, the distance sleeve penetrates through the body of the screw, the end of the distance sleeve is positioned and mounted on the motor suspension support, rubber supports are mounted on the upper side and the lower side of the distance sleeve, the traction motor is positioned on the rubber supports through limiting rabbets, the nut and the gland are fastened on screw threads to tightly press the distance sleeve and the rubber supports, and installation errors of the traction motor are adjusted through adjusting gaskets.
In order to further reduce the unsprung mass, the axle of the invention adopts a hollow structure to reduce the unsprung mass and improve the running performance at high speed under the condition of ensuring the strength of the axle, and meanwhile, the axle can carry out ultrasonic flaw detection under the condition of not disassembling wheels and the axle, thereby being beneficial to overhaul and maintenance.
The drive unit of the invention thus relates to a drive unit for an axle box built-in permanent magnet direct drive traction motor suspension. The bogie of the invention has no structure of gear box transmission and tooth type coupling, thus simplifying the structure of the driving unit and reducing the noise of the driving unit; the permanent-magnet direct-drive traction motor adopts an elastic suspension structure, so that the unsprung mass of the bogie is reduced; compared with the traditional bogie, the total weight of the bogie is reduced by about 10 percent, the traction energy consumption and the wheel rail abrasion are reduced, the maintenance and repair period is prolonged, and the total life cycle cost of the vehicle and the track is reduced.
The design difficulty of the invention is to complete the layout of all equipment and the design of subcomponents under the conditions of limited space and weight requirements and meeting the overall performance requirements, including the system parameter matching and system integration of each subcomponent of the bogie, a compact framework structure, a motor suspension structure, a coupling structure and a permanent magnet direct drive traction motor.
Compared with the prior art, the invention has the beneficial effects that:
1. the permanent magnet direct-drive traction motor adopts a suspension type, and is combined with a bilateral laminated coupler, so that a gearbox transmission system is eliminated in a bogie; meanwhile, the built-in type of the axle box is adopted, so that the transverse span of the left and right side beams of the framework and the length of the hollow axle are reduced; the traction device adopts a traction seat and rubber pile type; a series of suspension devices adopt an axle box overhead type rubber spring + axle box pull rod type. These measures enable the bogie wheelbase to be shortened to 2200mm, compared with the traditional bogie wheelbase of 2500mm, the wheelbase is greatly reduced, the whole size of the bogie is reduced, and the whole weight is reduced by about 10%.
2. The permanent magnet direct-drive traction motor and the drive unit of the double-side laminated coupler are adopted, gear box transmission and traditional tooth-type coupler transmission are omitted, and compared with a traditional asynchronous traction motor, gear box and tooth-type coupler transmission system, the gear-free transmission system has no gear transmission, so that the influence of transmission noise is greatly reduced.
3. According to the invention, researches show that when the permanent magnet direct-drive traction motor adopts a suspension type, the weight of the traction motor is completely borne by the framework and belongs to sprung mass, and compared with the traction motor axle suspension, the unsprung mass is greatly reduced, so that the maximum vertical acting force between wheel rails is reduced, and the permanent magnet direct-drive traction motor is more suitable for high-speed heavy-axle subway vehicles. Compared with a bogie adopting an asynchronous motor and a gear box transmission system, the permanent magnet direct-drive traction motor and double-side lamination coupling driving unit improves the traction efficiency, thereby effectively reducing the energy consumption. Combined with the reduction in bogie weight, it is expected that the overall energy consumption of the traction system of an entire train will be reduced by about 12% by the present invention.
4. The invention adopts a permanent magnet direct-drive traction motor. The torque of the traction motor is directly output to the hollow axle through the laminated type shaft couplings on the two sides, so that the traction force can be effectively transmitted and the mutual movement between the axle and the motor in the vehicle movement process can be balanced, and the traction efficiency is improved.
5. The permanent magnet direct-drive traction motor is arranged on a motor suspension support of a framework by adopting 4 elastic suspension units, the motor is connected with a bilateral laminated coupler and an axle through a hollow shaft sleeve, the mass of the motor does not directly act on a wheel pair, and compared with a traditional transmission system of an asynchronous traction motor, a gear box and a tooth coupler, the arrangement mode of the permanent magnet direct-drive traction motor greatly reduces unsprung mass (the unsprung mass is reduced by about 200 kg), so that the wheel-rail acting force when a vehicle runs at a high speed is improved, and meanwhile, the vibration impact of the wheel-rail acting force on the motor and a driving unit is reduced, so that the running reliability of a bogie is improved. Compared with the existing permanent magnet direct-drive traction motor which is installed in a shaft-embracing mode, the permanent magnet direct-drive traction motor has larger weight (generally more than 900 kg), and in the efficient driving unit of the permanent magnet direct-drive traction motor and the double-side laminated coupler, the weight of the permanent magnet direct-drive traction motor is sprung mass after the permanent magnet direct-drive traction motor is installed in a suspension mode; compared with the traditional subway bogie which uses solid axles, the bogie of the invention uses hollow axles to further reduce unsprung mass. Therefore, the invention has obvious effects on reducing unsprung mass and wheel-rail acting force.
6. After the axle box is arranged, the transverse span of the suspension device is reduced to 1130mm from 2050-2100 mm of a traditional axle box external bogie, the pan-swinging angle rigidity of wheel pairs and the torsional rigidity of the bogie are effectively reduced, and the bogie has the characteristics of strong curve passing capability, small wheel rail abrasion and low noise.
7. The bogie has the characteristics of small overall size and light weight, and plays an important role in reducing the traction energy consumption of the whole train, increasing the passenger carrying capacity and reducing the abrasion of wheel rails.
Drawings
FIG. 1 is a schematic view of a truck assembly according to one embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic diagram of the framework of FIG. 1;
FIG. 4 is a schematic view of the drive unit of FIG. 1;
FIG. 5 is a schematic diagram of the double-sided laminated coupling of FIG. 1;
FIG. 6 is a schematic view of the related mounting structure of the motor elastic suspension unit in FIG. 1;
FIG. 7 is a schematic structural view of the secondary suspension of FIG. 1;
FIG. 8 is a schematic view of the draft gear mounting structure of FIG. 1;
fig. 9 is a schematic structural view of the roll resisting device in fig. 1.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.
As shown in fig. 1 and 2, the railway vehicle bogie of the present embodiment mainly includes a frame 1, a primary suspension device 2, a drive unit 3, a secondary suspension device 4, a foundation brake device 5, a wheel-set axle box assembly 6, a traction device 7, and an anti-roll device 8.
The frame 1 is connected with a wheel-to-axle box assembly 6 through a primary suspension 2, the end parts of left and right side beams of the frame 1 are suspended with a driving unit 3 through four elastic suspension units, and the driving unit 3 is installed on a hollow axle 6-5 through the input ends 3-3 of a double-side laminated coupling. The clamp of the basic braking device 5 is hung on the outer side of a side beam of the framework 1, the secondary suspension 4 is installed on the outer side of the middle of the framework 1, the traction device 7 is installed on the middle of the framework 1, the anti-rolling devices 8 are installed on two sides of a middle cross beam of the framework 1, and the anti-snaking shock absorbers 4-4 are installed on the outer side of the middle of the side beam of the framework 1.
As shown in FIG. 3, the frame 1 of the present embodiment is an "H" shaped welded box structure, wherein the side beams 1-1 are located at both sides of the frame, and the cross beams 1-3 are a box structure formed by assembling and welding steel plates and located at the middle. The inner side of the end part of a side beam 1-1 is provided with a motor suspension support 1-2, the middle part of the side beam 1-1 is provided with a transverse stop seat 1-10, the outer side of the middle part of the side beam 1-1 is provided with a secondary suspension mounting seat 1-5, the upper part of the outer side of the secondary suspension mounting seat 1-5 is provided with an anti-snake shock absorber mounting seat 1-4, the lower part is provided with a secondary vertical shock absorber mounting seat 1-6, the bottom of the middle part of the side beam 1-1 is provided with an axle box pull rod seat 1-8, the lower parts of two sides of a cross beam 1-3 are provided with anti-roll mounting seats 1-7, one side of the upper part of the cross beam 1-3 is provided with a transverse shock absorber mounting seat 1-9, and the outer side of the middle part of the side beam is provided with a brake suspension seat 1-11.
The primary suspension device 2 of the present embodiment mainly includes a primary rubber spring 2-1, a primary vertical shock absorber 2-2 and an axle box tie rod assembly 2-3, forming a structural type in which the primary rubber spring 2-1 is disposed on the top of the axle box body and combined with the single axle box tie rod assembly 2-3.
The driving unit of the embodiment is composed as shown in fig. 4, and the driving unit 3 is mainly composed of a permanent magnet direct-drive traction motor 3-1, a coupling output end 3-2, a coupling input end 3-3, a transmission shaft sleeve 3-4, an elastic suspension unit 3-5 and the like. The relative mounting arrangement of the drive unit 2 and wheelset axle housing assembly 6, primary suspension 2 etc is shown in fig. 4. The permanent magnet direct-drive traction motor 3-1 is hung on a motor hanging support 1-2 of the framework 1 by adopting 4 elastic hanging units 3-5. At the output end 3-2 of the double-side laminated coupler, the inner connecting disc 3-2-9 at the output end is connected with the inner sleeve of the permanent magnet direct-drive traction motor 3-1 through an end face fluted disc; fastening by adopting a second bolt group 3-2-8; the outer connecting disc 3-2-6 of the output end is connected with the transmission shaft sleeve 3-4 through an end face fluted disc and is fastened by a first bolt group 3-2-5; the output end inner side connecting disc 3-2-9 and the output end outer side connecting disc 3-2-6 transmit torque and adapt to deformation through the first laminated sheet group 3-2-4. At the input end 3-3 of the laminated coupling, the inner connecting disc 3-3-1 at the input end is connected with the transmission shaft sleeve 3-4 through an end face fluted disc and is fastened by a third bolt group 3-3-2; the input end outer side connecting disc 3-3-3 is connected with the hollow axle 6-5 through interference fit; the input end inner side connecting disc 3-3-1 and the input end outer side connecting disc 3-3-3 transmit torque and adapt to deformation through the second laminated sheet group 3-3-4. The laminated bolt 3-2-1 in the output end 3-2 and the input end 3-3 of the laminated coupler are connected and fastened with the taper sleeve 3-2-7 through threads. Thus, the torque transmission and deformation adaptability between the inner sleeve of the permanent magnet direct drive traction motor 3-1 and the hollow axle 6-5 are completed.
When the traction motor suspension structure is adopted, the bilateral laminated coupler adapts to vertical, transverse and longitudinal relative movement between the traction motor and the axle through self elastic deformation, and transmits traction and braking torque.
The double-side laminated coupler of the embodiment mainly comprises a coupler output end 3-2, a coupler input end 3-3 and a transmission shaft sleeve 3-4, and a related mounting structure is shown in figure 5. The output end 3-2 of the coupler consists of a laminated bolt 3-2-1, a first mounting pad 3-2-2, a second mounting pad 3-2-3, a first laminated group 3-2-4, a first bolt group 3-2-5, an output end outer side connecting disc 3-2-6, a taper sleeve 3-2-7, a second bolt group 3-2-8 and an output end inner side connecting disc 3-2-9; the coupler input end 3-3 is composed of an input end inner side connecting disc 3-3-1, a third bolt group 3-3-2, an input end outer side connecting disc 3-3-3, a second lamination group 3-3-4, a lamination bolt 3-2-1, a first mounting pad 3-2-2, a second mounting pad 3-2-3 and a taper sleeve 3-2-7, and the coupler output end 3-2 and the coupler input end 3-3 use the same lamination bolt 3-2-1, the first mounting pad 3-2-2, the second mounting pad 3-2-3 and the taper sleeve 3-2-7 to reduce component types and simplify installation. The torque output by the permanent magnet direct-drive traction motor is transmitted to the input end 3-3 of the coupler through the output end 3-2 of the coupler and the transmission shaft sleeve 3-4, and the outer connecting disc 3-3-3 at the outer side of the input end in the input end 3-3 of the coupler is in interference connection with the hollow axle 6-5, so that the torque is transmitted to the hollow axle 6-5, and the torque output of the motor is realized.
The related installation structure of the elastic suspension unit of the motor of the embodiment is shown in fig. 6, and the elastic suspension unit 3-5 comprises a screw rod 3-5-1, an adjusting gasket 3-5-2, a rubber support 3-5-3, a distance sleeve 3-5-4, an adjusting gasket 3-5-5, a nut 3-5-7 and a gland 3-5-8. Wherein: the head of the screw 3-5-1 is tightly attached to the motor suspension support 1-2, the end part of the distance sleeve 3-5-4 penetrates through the rod body of the screw 3-5-1 and is positioned on the motor suspension support 1-2, the rubber supports 3-5-3 are arranged on the upper side and the lower side of the distance sleeve 3-5-4, the traction motor 3-1 is positioned on the rubber supports 3-5-3 through the limiting stop, the nuts 3-5-7 and the pressing covers 3-5-8 are fastened on the screw threads of the screw 3-5-1, the distance sleeve 3-5-4 and the rubber supports 3-5-3 are compressed, and the installation error of the traction motor 3-1 is adjusted by adjusting the gaskets 3-5-2,3-5-5.
The related mounting structure of the secondary suspension device of the present embodiment is shown in fig. 7, and the secondary suspension device 4 includes: the air springs 4-1 are arranged on two sides of the middle of the framework 1, the bottoms of the secondary vertical shock absorbers 4-2 are fastened on the secondary vertical shock absorber mounting seats 1-6, the bottoms of the secondary transverse shock absorbers 4-3 are fastened on the transverse shock absorber mounting seats 1-9, the heads of the secondary transverse shock absorbers 4-3 are fastened on the transverse shock absorber seats 7-5, and the bottoms of the anti-snake motion shock absorbers 4-4 are fastened on the anti-snake motion shock absorber mounting seats 1-4. The air spring 4-1, the secondary vertical shock absorber 4-2 and the anti-snaking shock absorber 4-4 are connected with the vehicle body when the unconnected end falls.
The basic brake device 5 of the embodiment mainly comprises a brake clamp 5-1 which is arranged on a brake hanging seat 1-10 on the outer side of a side beam of a framework through a bolt, and the brake clamp and an integral wheel 6-1 and an wheel-mounted brake disc 6-2 in a wheel-pair axle box assembly 6 form a wheel disc brake type arranged in the middle of the brake clamp, and the wheel-mounted brake disc 6-2 is fixedly arranged on the integral wheel 6-1 and the integral wheel through a bolt and a limiting spigot.
The wheel-pair axle box assembly 6 mainly comprises an integral wheel 6-1 and a wheel brake disc 6-2, wherein the integral wheel 6-1 is arranged at two ends of a hollow axle 6-5 in an interference pressing mode, the wheel brake disc is fixedly arranged on the integral wheel 6-1, the axle box assembly 6-3 is arranged on the inner side of the wheel, and a speed measuring gear 6-4 is arranged on the hollow axle 6-5 through a limiting spigot.
The related installation structure of the traction device of the embodiment is shown in fig. 8, the traction device 7 mainly comprises a traction seat 7-1 installed on a vehicle body, a connecting seat 7-3 is installed at the bottom of the traction seat 7-1, a rubber pile 7-2 is installed on two sides of the connecting seat 7-3, and a transverse stopping assembly 7-4 is installed on a transverse stopping seat 1-10. The lower part of the side surface of the traction seat 7-1 is provided with a transverse shock absorber seat 7-5 which is used for connecting the head of a secondary transverse shock absorber 4-3.
The related installation structure of the anti-rolling device of the embodiment is shown in fig. 9, the anti-rolling device 8 mainly comprises a rubber shaft sleeve 8-3 arranged on anti-rolling installation seats 1-7 at two sides of a frame beam 1-3, a torsion bar 8-2 penetrates through the rubber shaft sleeve 8-3, two ends of the torsion bar 8-2 are arranged on a tension and compression bar assembly 8-1 through crank arms 8-4, and in order to improve the anti-rolling capability of a vehicle, two sets of anti-rolling devices are arranged on each steering frame.
The bogie of the embodiment has the advantages that as the structure of the gear box transmission and the tooth-type coupling is not adopted, the structure of the driving unit is simplified, and the noise of the driving unit is reduced; the permanent-magnet direct-drive traction motor adopts an elastic suspension structure, so that the unsprung mass of the bogie is reduced; compared with the traditional bogie, the total weight of the bogie is reduced by about 10 percent, the traction energy consumption and the wheel rail abrasion are reduced, the maintenance and overhaul period is prolonged, and the service life period cost of the vehicle and the track is reduced.
The above examples are set forth so that this disclosure will be thorough and complete, and will not limit the scope of the present invention.
Claims (10)
1. A driving unit of a railway vehicle bogie is characterized by comprising a permanent magnet direct-drive traction motor (3-1), a coupler output end (3-2), a coupler input end (3-3) and a transmission shaft sleeve (3-4); an output end inner side connecting disc (3-2-9), an output end outer side connecting disc (3-2-6) and a first laminated sheet group (3-2-4) are sequentially arranged on one side of the output end of the transmission shaft sleeve (3-4), and an input end inner side connecting disc (3-3-1), an input end outer side connecting disc (3-3-3) and a second laminated sheet group (3-3-4) are sequentially arranged on one side of the input end of the transmission shaft sleeve (3-4);
at the output end (3-2) of the coupler, the output end outer side connecting disc (3-2-6) is fixedly connected with an end face fluted disc of the transmission shaft sleeve (3-4), and the output end inner side connecting disc (3-2-9) and the output end outer side connecting disc (3-2-6) transmit torque through the first lamination set (3-2-4);
at the input end (3-3) of the coupler, the inner side connecting disc (3-3-1) of the input end is fixedly connected with the transmission shaft sleeve (3-4) through an end face fluted disc, and the outer side connecting disc (3-3-3) of the input end is connected with the hollow axle (6-5) through interference fit; the input end inner side connecting disc (3-3-1) and the input end outer side connecting disc (3-3-3) transmit torque through the second laminated sheet group (3-3-4).
2. The drive unit of a railway vehicle bogie according to claim 1, wherein the coupler output (3-2) comprises a lamination bolt (3-2-1), a first mounting pad (3-2-2), a second mounting pad (3-2-3), a first lamination stack (3-2-4), a first bolt stack (3-2-5), an output outer side connection disc (3-2-6), a taper sleeve (3-2-7), a second bolt stack (3-2-8), an output inner side connection disc (3-2-9);
the coupler input end (3-3) comprises an input end inner side connecting disc (3-3-1), a third bolt group (3-3-2), an input end outer side connecting disc (3-3-3), a second laminated group (3-3-4), a laminated bolt (3-2-1), a first mounting pad (3-2-2), a second mounting pad (3-2-3) and a taper sleeve (3-2-7).
3. The drive unit of a railway vehicle bogie as recited in claim 1, characterized in that the lamination bolts (3-2-1) in the coupling output (3-2) and the coupling input (3-3) are fastened with the taper sleeves (3-2-7) through threaded connection to realize torque transmission between the permanent magnet direct drive traction motor (3-1) and the hollow axle (6-5).
4. A railway vehicle bogie comprises a framework (1), a primary suspension device (2), a driving unit (3), a secondary suspension device (4), a foundation braking device (5), a wheel-pair axle box assembly (6), a traction device (7) and an anti-rolling device (8); characterized in that the drive unit (3) is a drive unit of a railway vehicle bogie according to any of claims 1-3; the frame (1) is connected with a wheel-to-axle box assembly (6) through a primary suspension (2), the end parts of the left and right side beams of the frame (1) are suspended with driving units (3) through a plurality of elastic suspension units, and the driving units (3) are installed on hollow axles (6-5) through coupling input ends (3-3); the clamp of the foundation braking device (5) is hung on the outer side of a side beam of the framework (1), the secondary suspension (4) is installed on the outer side of the middle of the framework (1), the traction device (7) is installed on the middle of the framework (1), the anti-rolling devices (8) are installed on two sides of a middle cross beam of the framework (1), and the anti-snaking shock absorbers (4-4) are installed on the outer side of the middle of the side beam of the framework (1).
5. Railway vehicle bogie according to claim 4 characterized in that the frame (1) comprises cross beams (1-3) in the middle and side beams (1-1) at both ends of the cross beams (1-3); the motor suspension support is arranged on the inner side of the end part of the side beam (1-1), the transverse stop seat (1-10) is arranged in the middle of the side beam (1-1), the secondary suspension mounting seat (1-5) is arranged on the outer side of the middle of the side beam (1-1), the anti-snake shock absorber mounting seat (1-4) is arranged on the upper part of the outer side of the secondary suspension mounting seat (1-5), the secondary vertical shock absorber mounting seat (1-6) is arranged on the lower part of the outer side of the secondary suspension mounting seat (1-5), the axle box pull rod seat (1-8) is arranged at the bottom of the middle of the side beam (1-1), the anti-side-roll mounting seat (1-7) is arranged on the lower part of two sides of the cross beam (1-3), the transverse shock absorber mounting seat (1-9) is arranged on one side of the upper part of the cross beam (1-3), and the brake suspension mounting seat (1-11) is arranged on the outer side of the middle of the side beam.
6. A railway vehicle bogie according to claim 4, characterized in that the primary suspension means (2) comprises a series of rubber springs (2-1) mounted on top of the axle box, a series of vertical shock absorbers (2-2) and a single axlebox rod assembly (2-3) hinged to the axle box;
the secondary suspension device (4) comprises air springs (4-1) arranged on two sides of the middle of the framework (1), a secondary vertical shock absorber (4-2), a secondary transverse shock absorber (4-3) and an anti-snake shock absorber (4-4); the bottom of a secondary vertical shock absorber (4-2) is fastened on a secondary vertical shock absorber mounting seat (1-6), the bottom of a secondary transverse shock absorber (4-3) is fastened on a transverse shock absorber mounting seat (1-9), the head of the secondary transverse shock absorber (4-3) is fastened on a transverse shock absorber seat (7-5), and the bottom of an anti-snake shock absorber (4-4) is fastened on an anti-snake shock absorber mounting seat (1-4); the air spring (4-1), the secondary vertical shock absorber (4-2) and the anti-snaking shock absorber (4-4) are connected with the vehicle body when the unconnected end falls down.
7. A railway vehicle bogie according to claim 4, characterized in that the foundation brake device (5) comprises brake clamps (5-1) mounted on brake hangers (1-10) outside the side beams of the frame, the brake clamps (5-1) together with the one-piece wheel (6-1) and the one-piece brake disc (6-2) in the wheelset axle box assembly (6) forming a centrally arranged wheel disc brake pattern of the brake clamps, the one-piece brake disc (6-2) being mounted securely on the one-piece wheel (6-1) by means of bolts and a spacing spigot.
8. The railway vehicle bogie according to claim 4, wherein the wheel-pair axle-box assembly (6) comprises a monolithic wheel (6-1) press-fitted on both ends of a hollow axle (6-5) and a wheel brake disc (6-2) tightly mounted on the monolithic wheel (6-1), an axle-box assembly (6-3), and a speed measuring gear (6-4); the axle box assembly (6-3) is arranged on the inner side of a wheel, and the speed measuring gear (6-4) is arranged on the hollow axle (6-5) through a limiting spigot;
the traction device (7) comprises a traction seat (7-1) arranged on the vehicle body, a transverse shock absorber seat (7-5) arranged on the traction seat (7-1), a rubber pile (7-2) arranged in the middle of the frame beam (1-3), a connecting seat (7-3) and a transverse stop assembly (7-4); the connecting seat (7-3) is installed at the bottom of the traction seat (7-1), the rubber pile (7-2) is installed on two sides of the connecting seat (7-3), and the transverse stopping assembly (7-4) is installed on the transverse stopping seat (1-10).
9. The railway vehicle bogie according to claim 4, characterized in that the anti-roll device (8) comprises a rubber bushing (8-3) mounted on anti-roll mounts (1-7) on both sides of a frame beam (1-3), a torsion bar (8-2), a crank arm (8-4) and a tension bar assembly (8-1); the torsion bar (8-2) penetrates through the rubber shaft sleeve (8-3), and two ends of the torsion bar (8-2) are arranged on the tension and compression bar assembly (8-1) through crank arms (8-4); preferably two sets of said anti roll devices are arranged per bogie.
10. Railway vehicle bogie according to any of the claims 4-9 characterized in that said elastic suspension unit (3-5) comprises a screw (3-5-1), an adjusting shim, a rubber seat (3-5-3), a distance sleeve (3-5-4), a nut (3-5-7) and a gland (3-5-8); the head of the screw (3-5-1) is tightly attached to the motor suspension support (1-2), the end part of the distance sleeve (3-5-4) is positioned and installed on the motor suspension support (1-2) after the distance sleeve (3-5-4) penetrates through the rod body of the screw (3-5-1), the rubber supports (3-5-3) are installed on the upper side and the lower side of the distance sleeve (3-5-4), the traction motor (3-1) is positioned on the rubber supports (3-5-3) through a limiting spigot, the nut (3-5-7) and the gland (3-5-8) are fastened on the screw (3-5-1) to tightly press the distance sleeve (3-5-4) and the rubber supports (3-5-3), and the installation error of the traction motor (3-1) is adjusted through adjusting gaskets.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211039233.3A CN115257825A (en) | 2022-08-29 | 2022-08-29 | Railway vehicle bogie and driving unit thereof |
| PCT/CN2022/135313 WO2024045381A1 (en) | 2022-08-29 | 2022-11-30 | Railway vehicle bogie and drive unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211039233.3A CN115257825A (en) | 2022-08-29 | 2022-08-29 | Railway vehicle bogie and driving unit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115257825A true CN115257825A (en) | 2022-11-01 |
Family
ID=83753812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211039233.3A Pending CN115257825A (en) | 2022-08-29 | 2022-08-29 | Railway vehicle bogie and driving unit thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115257825A (en) |
| WO (1) | WO2024045381A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024045381A1 (en) * | 2022-08-29 | 2024-03-07 | 中车株洲电力机车有限公司 | Railway vehicle bogie and drive unit thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016212A (en) * | 2016-10-31 | 2018-05-11 | 中车大同电力机车有限公司 | Rail locomotive vehicle power axis Flexplate coupling transmission mechanism |
| CN108791325B (en) * | 2018-07-27 | 2020-08-21 | 中车株洲电力机车有限公司 | Permanent-magnet direct-drive bogie and railway vehicle thereof |
| CN110962873B (en) * | 2018-09-28 | 2021-02-02 | 中车大同电力机车有限公司 | High-power permanent magnet direct-drive bogie and rapid passenger locomotive |
| KR102304283B1 (en) * | 2020-11-10 | 2021-09-24 | (주)성신알에스티 | Bogie for railway vehicle powered by battery |
| CN115257825A (en) * | 2022-08-29 | 2022-11-01 | 中车株洲电力机车有限公司 | Railway vehicle bogie and driving unit thereof |
-
2022
- 2022-08-29 CN CN202211039233.3A patent/CN115257825A/en active Pending
- 2022-11-30 WO PCT/CN2022/135313 patent/WO2024045381A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024045381A1 (en) * | 2022-08-29 | 2024-03-07 | 中车株洲电力机车有限公司 | Railway vehicle bogie and drive unit thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024045381A1 (en) | 2024-03-07 |
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