CN114104011A - Bogie driving and damping assembly - Google Patents
Bogie driving and damping assembly Download PDFInfo
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- CN114104011A CN114104011A CN202111493014.8A CN202111493014A CN114104011A CN 114104011 A CN114104011 A CN 114104011A CN 202111493014 A CN202111493014 A CN 202111493014A CN 114104011 A CN114104011 A CN 114104011A
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- 238000013016 damping Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000035939 shock Effects 0.000 claims description 34
- 230000006835 compression Effects 0.000 claims description 17
- 238000007906 compression Methods 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 9
- 241000446313 Lamella Species 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims 3
- 230000008859 change Effects 0.000 abstract description 8
- 230000008439 repair process Effects 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000003137 locomotive effect Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
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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
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
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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)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The bogie driving and damping assembly is arranged on a framework and comprises two driving devices for driving a vehicle to run and damping devices for reducing the vibration of a vehicle body, the two driving devices are symmetrically arranged on the framework, two walking wheels are arranged on each driving device, the damping devices are symmetrically arranged on two sides of each walking wheel, each driving device comprises a driving motor, a speed reducer connected with an output shaft of the driving motor through a coupler, and a wheel pair transmission assembly connected with an output shaft of the speed reducer to drive the walking wheels to synchronously rotate, and the walking wheels on the outer side are coaxially positioned on the wheel pair transmission assembly and press and position the walking wheels on the inner side on the wheel pair transmission assembly along the axial direction. The bogie driving device has the advantages of compact structure, lighter weight and high driving stability, is suitable for sightseeing trains with smaller load change, simple load working conditions and low running speed, has simple installation and positioning structures of the traveling wheels, is convenient to maintain and repair, simplifies the damping structure in the bogie, and meets the structural requirements of compact small bogies.
Description
Technical Field
The invention relates to a bogie driving and damping assembly, and belongs to the technical field of bogies.
Background
The bogie is an important component of a sightseeing train and is used for bearing the whole weight of a train body and ensuring that the train can smoothly pass through a curve. The bogie of the existing train includes: the frame, motor, gear box and trend wheel etc.. The output shaft of the motor is connected with the input shaft of the gear box after passing through a through hole formed in the lower support arm of the framework, and the output shaft of the gear box is connected with a transversely arranged axle through a split coupling, so that a running wheel fixed on the axle is driven to move on the track. However, when the travelling wheels of the existing bogie of the train are replaced, the motor, the gear box, the coupling and the axle are required to be disassembled one by one to complete the replacement of the travelling wheels, so that the operation, maintenance and overhaul time is increased.
The sightseeing train has small load change relative to the locomotive, simple load working condition and low running speed, and most of the shock absorbers adopted in the suspension system are hydraulic shock absorbers. But the connection structure of current hydraulic shock absorber and spring is single, the veneer, and the shock attenuation effect is relatively poor, can not guarantee the ride comfort that the vehicle travel, and shock-absorbing structure's stability exists not enoughly, and the easy emergence of spring is out of shape, influences sightseeing vehicle damping device's life.
Disclosure of Invention
The bogie driving and damping assembly provided by the invention has the advantages that the structure of the driving device is simplified, the movement synchronism of the travelling wheels is ensured, the bogie driving with compact structure, lighter weight and high driving stability is formed, the bogie driving device is suitable for a sightseeing train with small load change, simple load working condition and low running speed, the practicability is high, the mounting and positioning structures of the travelling wheels are simple, the assembly and disassembly are easy, the maintenance and repair are convenient, the damping structure in the bogie is simplified under the condition of meeting the damping requirement of the sightseeing train, and the structural requirement of a compact small bogie is met.
In order to achieve the purpose, the invention adopts the technical scheme that:
bogie drive and shock attenuation assembly adorns on the framework, including the damping device who is used for the drive arrangement of drive vehicle operation and reduces the automobile body vibrations, and drive arrangement's quantity is two and the symmetry sets up on the framework, and two walking wheels of installation are gone on every drive arrangement, and the damping device symmetry sets up in the both sides of walking the wheel, its characterized in that: the driving device comprises a driving motor, a speed reducer connected with an output shaft of the driving motor through a coupler, and a wheel pair transmission assembly connected with the output shaft of the speed reducer to drive walking wheels to synchronously rotate, wherein the walking wheels on the outer side are coaxially positioned on the wheel pair transmission assembly, and the walking wheels on the inner side are axially compressed and positioned on the wheel pair transmission assembly.
Preferably, the wheel set transmission assembly comprises a transmission shaft, a hub and an axial pressing piece, wherein the inner end of the transmission shaft is connected with the output shaft of the speed reducer, the hub is coaxially fixed with the outer end of the transmission shaft, and the traveling wheel is axially pressed and positioned on the hub through the axial pressing piece and synchronously rotates along with the hub.
Preferably, the transmission shaft is sleeved with a hollow shaft in a clearance fit manner, the hollow shaft is fixed with the framework, the hub is sleeved on the hollow shaft and is radially supported and positioned between the hub and the hollow shaft through a tapered roller bearing with a labyrinth seal structure, the outer end of the transmission shaft extends out of the hollow shaft and is radially outwards turned to be coaxially fixed with the hub, the two tapered roller bearings are respectively pressed between the hollow shaft and the hub, one tapered roller bearing is close to the outer side of the hub, the other tapered roller bearing is close to the inner end of the hub, and the two tapered roller bearings are arranged in a back-to-back manner.
Preferably, the travelling wheels comprise rims which are sleeved on the wheel hub in an interference mode and pneumatic rubber tires which are installed on the rims, the rims of the two travelling wheels are spaced along the axial direction, and the two rims are pressed and positioned on the wheel hub along the axial direction through the axial pressing piece.
Preferably, the axial compression member comprises a compression block fixed with the hub and a wheel backing ring arranged between the two rims, the compression block compresses the outer rim inwards along the axial direction, and the compression force is transmitted to the inner rim through the wheel backing ring to compress the inner rim on the hub.
Preferably, the compressing block is fixed with the outer end face of the hub, a first inclined face in compression fit with the compressing block is arranged on the inner wall of the rim on the outer side, a compression gap is formed between the first inclined face and the outer wall of the hub, the compressing block extends into the compression gap and is in contact with the first inclined face and the outer wall of the hub in a fitting mode respectively, the wheel backing ring is sleeved on the hub in an interference fit mode and is clamped between the two rims, and the axial pressing force is transmitted to the rim on the inner side.
Preferably, the inner rim is provided with a second inclined surface which is in press fit with the hub, the hub is provided with a positioning inclined surface which is in press fit with the second inclined surface, and the second inclined surface is pressed on the positioning inclined surface to axially position the inner rim on the hub.
Preferably, the rim is provided with a tire pressure monitoring and sensing alarm which can monitor the tire pressure of the pneumatic rubber tire and give an alarm when the tire pressure is lower than a preset value, and the sensing probe end of the tire pressure monitoring and sensing alarm is attached to the inner wall of the pneumatic rubber tire.
Preferably, damping device include along the hourglass spring of vertical dress in the framework, hourglass spring sets up and forms elastic support to the automobile body in the both sides of walking the wheel, hourglass spring includes toper upper rubber layer, with toper upper rubber layer mirror symmetry's toper lower rubber layer, vulcanize the intermediate lamella that connects toper upper rubber layer and toper lower rubber layer, vulcanize on the top surface of toper upper rubber layer and the fixed last mounting panel of framework and vulcanize the bottom surface on toper lower rubber layer and with the fixed lower mounting panel of framework, fixed and the vertical noncontacting backstop piece that separates of intermediate lamella on the lower mounting panel, backstop piece offsets with the intermediate lamella along with hourglass spring's compression.
Preferably, the shock absorption device further comprises hydraulic shock absorbers obliquely arranged on the framework, wherein the hydraulic shock absorbers are symmetrically arranged on two sides of the hourglass spring and form elastic support for the vehicle body together with the hourglass spring.
The invention has the beneficial effects that:
1. the bogie driving and damping assembly is suitable for sightseeing trains with small load change, simple load working conditions, low running speed and high practicability.
2. The two walking wheels and the hub are pressed into a whole through the matching of the pressing block and the first inclined plane, the matching of the second inclined plane and the positioning inclined plane and the matching of the wheel backing ring and the rim, so that the torque is transmitted along the axial direction by friction transmission, the two walking wheels from outside to inside synchronously rotate along with the hub, the inclined planes are attached and pressed, namely, the torque is transmitted along the axial direction by friction transmission and is also formed by axially positioning the rim, and the rotation synchronism of the walking wheels is ensured.
3. The travelling wheels are inflatable rubber wheels, the two driving devices are respectively provided with two travelling wheels, the four travelling wheels form four-point elastic support for the train body, the passing capacity of the train on a curve and an inclined track is improved, the balance of the train body is kept, the running stability and the safety of the train are improved, the shock absorption devices are arranged on two sides of the walking wheels, the hourglass spring in the shock absorption devices vertically supports the vehicle body and buffers the vertical vibration of the vehicle body, the hourglass spring can also moderate partial rotary impact, smooth rotation of the carriage and the bogie is improved, riding comfort is improved, the stop block in the hourglass spring is abutted against the middle plate along with the compression of the hourglass spring, the hourglass spring is enabled to form variable stiffness, the bearing capacity of the hourglass spring is improved, the stop block plays a role of hard stop after the rubber spring fails to rigidly support the vehicle body, so that safety accidents caused by failure of rubber creep and the like are avoided; the hydraulic shock absorber supports the train body through expansion and absorbs the vibration of the train body, the inclination angle of the train body is limited when the train passes through a curve or the load is uneven, four-point elastic support formed by the travelling wheels on the train body is combined with the support of the hydraulic shock absorber on the two sides of the travelling wheels on the train body, the train body can be effectively prevented from overturning in the curve or the load offset, the running safety of the train is improved, a complex air spring shock absorption structure of the locomotive is replaced by a combined shock absorption structure of an hourglass spring, the hydraulic shock absorber and inflatable travelling wheels, under the condition that the shock absorption requirements of the sightseeing train with small load change, simple load working condition and low running speed are met, the shock absorption structure in the bogie is simplified, the space volume is reduced, and the structural requirements of a compact small bogie are met.
Drawings
FIG. 1 is a schematic diagram of a truck drive and shock assembly in accordance with an embodiment of the present invention in cooperation with a track.
Fig. 2 is a schematic view of the running wheels mounted on the wheelset transmission assembly.
Fig. 3 is a partially enlarged schematic view of fig. 2.
FIG. 4 is a schematic view of shock absorbers mounted on both sides of a running wheel.
Detailed Description
Embodiments of the present invention will be described in detail with reference to fig. 1 to 4.
Bogie drive and shock attenuation assembly, the dress is on framework 100, including drive arrangement 1 that is used for driving the vehicle operation and damping device 2 that reduces the automobile body vibrations, drive arrangement 1's quantity is two and the symmetry sets up on the framework, and two walking wheels 3 of installation are gone on every drive arrangement 1, and damping device 2 symmetry sets up in the both sides of walking wheel 3, its characterized in that: the driving device 1 comprises a driving motor 4, a speed reducer 5 connected with an output shaft of the driving motor through a coupler, and a wheel pair transmission assembly 6 connected with the output shaft of the speed reducer 5 to drive the walking wheels 3 to synchronously rotate, wherein the walking wheels 3 on the outer side are coaxially positioned on the wheel pair transmission assembly 6, and the walking wheels 3 on the inner side are axially compressed and positioned on the wheel pair transmission assembly 6.
The bogie driving and damping assembly is characterized in that the driving device 1 comprises a driving motor 4, a speed reducer 5 and a wheel set transmission assembly 6, two walking wheels 3 are installed on the wheel set transmission assembly 6, the walking wheels 3 on the outer side are coaxially positioned on the wheel set transmission assembly 3 and press and position the walking wheels 3 on the inner side on the wheel set transmission assembly 6 along the axial direction, the two walking wheels 3 and the wheel set transmission assembly 6 form a whole, the two walking wheels synchronously rotate, the movement synchronism of the walking wheels is ensured while the structure of the driving device 1 is simplified, the bogie driving device which is compact in structure, lighter in weight and high in driving stability is formed, and the bogie driving device is suitable for a sightseeing train which is small in load change, simple in load working condition, low in running speed and high in practicability.
The wheel pair transmission assembly 6 comprises a transmission shaft 7, a wheel hub 8 and an axial pressing piece 9, wherein the inner end of the transmission shaft 7 is connected with an output shaft of the speed reducer, the wheel hub 8 is coaxially fixed with the outer end of the transmission shaft, and the traveling wheel 3 is axially pressed and positioned on the wheel hub 8 through the axial pressing piece 9 and synchronously rotates along with the wheel hub 8. The axial pressing piece 9 presses the outer walking wheels 3 along the axial direction and transmits pressing force to the inner walking wheels 8, so that the inner walking wheels 8 are pressed on the wheel hubs 8 in the axial direction, the two walking wheels 3 are positioned on the wheel hubs 8, the two walking wheels 3 and the wheel hubs 8 are pressed into a whole, when the driving motor drives the transmission shaft 7 to rotate, the wheel hubs 8 are driven to rotate, the two walking wheels 3 rotate synchronously, the two walking wheels 3 are pressed and positioned on the wheel hubs 8 through the axial direction of the axial pressing piece 9, synchronous movement is guaranteed, the walking wheels 3 are pressed and positioned along the axial direction by the axial pressing piece 9, folding and assembly of the walking wheels 3 are facilitated, maintenance and overhaul of the walking wheels are easy, and the practicability is high.
The hollow shaft 10 is sleeved on the transmission shaft 7 in a clearance fit mode, the hollow shaft 10 is fixed with the framework, the hub 8 is sleeved on the hollow shaft 10 and is radially supported and positioned between the hub 8 and the hollow shaft 10 through the tapered roller bearing 11 with a labyrinth seal structure, the outer end of the transmission shaft 7 extends out of the hollow shaft 10 and is radially outwards turned and coaxially fixed with the hub 8, the two tapered roller bearings 11 are respectively pressed between the hollow shaft 10 and the hub 8, one tapered roller bearing 11 is close to the outer side of the hub 8, the other tapered roller bearing 11 is close to the inner end of the hub 8, and the two tapered roller bearings 11 are arranged back to back. The inner end of a transmission shaft 7 is connected with an output shaft of a speed reducer 5, the outer end of the transmission shaft is fixed with a hub 8, a hollow shaft 10 is sleeved on the transmission shaft 7 in a clearance fit mode and is fixed with a framework, it is guaranteed that the hollow shaft 10 does not move along with rotation of the transmission shaft 7, a tapered roller bearing 11 is used for radially supporting the hub 8 and axially positioning the hub 8 on the hollow shaft 10, it is guaranteed that the hub 8 can move synchronously with the transmission shaft 7 and can be coaxially arranged with the movable transmission shaft 7, lubricating grease is filled in the tapered roller bearing 11 and sealed through a labyrinth sealing structure, it is guaranteed that the tapered roller bearing 11 rotates smoothly, influences of environmental impurities on the interior of the bearing are reduced, an oil nozzle communicated with an inner cavity of the tapered roller bearing 11 is arranged on the hub during use, lubricating grease is filled in the use process, and the lubricating performance of the tapered roller bearing 11 is kept. The two tapered roller bearings 11 radially support the hub 8 and the hollow shaft 10 to be fixed with the framework, so that the mounting structure of the hub 8 is simplified, the stress of the hollow shaft 10 is reduced, and the reliability and the stability of the transmission structure are improved.
The walking wheels 3 comprise rims 31 which are sleeved on the wheel hub 8 in an interference mode and pneumatic rubber tires 32 which are installed on the rims 31, the rims 31 of the two walking wheels are spaced along the axial direction, and the two rims 31 are pressed and positioned on the wheel hub 8 along the axial direction by the axial pressing piece 9. The pneumatic rubber tyre 32 is arranged on a rim 31, the rim 31 is sleeved on a hub 8 in an interference manner and is axially compressed and positioned on the hub 8 by an axial compressing piece 9, so that the axial positioning of the rim 31 is realized, power is transmitted along the axial direction by the axial compressing piece 9, and the synchronous rotation of the two traveling wheels 8 is ensured.
The axial pressing member 9 includes a pressing block 91 fixed to the wheel hub 8 and a wheel rim 92 disposed between the two wheel rims 31, the pressing block 91 presses the outer wheel rim 31 inward in the axial direction, and the pressing force is transmitted to the inner wheel rim 31 through the wheel rim 92 to press the inner wheel rim 31 against the wheel hub 8. The pressing block 91 is fixed with the hub 8 and rotates synchronously with the hub 8, the pressing block 91 presses the outer rim 31, the outer rim 31 presses the wheel backing ring 92, the wheel backing ring 92 presses the inner rim 31, the inner rim 31 is pressed on the hub 8, the axial pressing piece 9, the two rims 31 and the hub 8 are pressed into a whole through sequential transmission and pressing from outside to inside, the axial pressing transmits power while positioning the axial position of the rim 31, the two traveling wheels 3 move synchronously, the mounting structure of the traveling wheels 3 is simple, the synchronous rotation reliability is high, and the smooth operation of a sightseeing train can be effectively guaranteed.
The pressing block 91 is fixed to the outer end face of the hub 8, a first inclined face 311 in press fit with the pressing block 91 is arranged on the inner wall of the rim 31 on the outer side, a pressing gap A is formed between the first inclined face 311 and the outer wall of the hub 8, the pressing block 91 extends into the pressing gap A and is in contact with the first inclined face 311 and the outer wall of the hub 8 in a fitting mode respectively, the wheel backing ring 92 is sleeved on the hub 8 in an interference fit mode and is clamped between the two rims 31, and axial pressing force is transmitted to the rim 31 on the inner side. It can be seen from the drawing that the upper end of the pressing block 91 is fixed with the end face of the hub 8 through a bolt, the lower end of the pressing block extends into the pressing gap a, the pressing block 91 is provided with an inclined plane matched with the inclined plane 311, even if the surface of the inclined plane is in fit with the surface of the pressing block 91, the pressing block 91 presses the rim 31 on the outer side along the axial direction to transmit axial pressing force, meanwhile, the pressing fit contact of the inclined plane can increase friction force and improve the reliability of power transmission, the pressing block 91 extends into the pressing gap a and is respectively in fit contact with the inclined plane 311 and the outer wall of the hub 8, radial support is formed on the rim 31 while the rim 31 is pressed axially, the rim 31 can be kept coaxial with the hub 8 in the stress process, and the structural reliability is improved.
The inner rim 31 is provided with a second inclined surface 312 which is in press fit with the hub 8, the hub 8 is provided with a positioning inclined surface 81 which is in press fit with the second inclined surface 312, and the second inclined surface 312 is pressed on the positioning inclined surface 81 to axially position the inner rim 31 on the hub 8. The pressing block 91 axially presses the outer rim 31 to enable the wheel backing ring 92 to press the inner rim 31, the second inclined surface 312 of the inner rim 31 is pressed on the positioning inclined surface 81, the second inclined surface 312 is in contact with the positioning inclined surface 81 in a surface-to-surface fit mode, the inner rim 31 is axially positioned on the hub 8, the pressing, fitting and contact of the inclined surfaces can increase friction force to improve reliability of power transmission and ensure synchronous rotation, the two traveling wheels 3 and the hub 8 are pressed into a whole to form friction transmission torque along the axial direction through the matching of the pressing block 91 and the first inclined surface 311, the matching of the second inclined surface 312 and the positioning inclined surface 81 and the matching of the wheel backing ring 92 and the rim 31, the two traveling wheels 3 from the outside to the inside rotate synchronously along the hub 8, the inclined surface fitting and pressing form friction transmission torque along the axial direction for positioning of the rim shaft 31, and ensure the rotation synchronism of the traveling wheels, the installation and positioning structure of the walking wheels is simple, easy to disassemble and assemble and convenient to maintain and repair.
The rim 31 is provided with a tire pressure monitoring and sensing alarm 12 which can monitor the tire pressure of the pneumatic rubber tire and give out an alarm when the tire pressure is lower than a preset value, and the sensing probe end of the tire pressure monitoring and sensing alarm 12 is attached to the inner wall of the pneumatic rubber tire 32. Tire pressure monitoring response alarm 12 monitors the tire pressure of pneumatic rubber tire 32, pneumatic rubber tire 32 warp when the tire pressure reduces and can lead to the interval reduction of bogie and track 101, tire pressure monitoring response alarm 12 monitors the tire pressure, tire pressure monitoring response alarm 12 sends out the police dispatch newspaper promptly when the tire pressure is less than the default, suggestion staff's tire pressure is not enough, effectively avoid leading to bogie and rail face contact friction because of pneumatic rubber tire 32 atmospheric pressure is not enough, improve the security of bogie.
Wherein, the damping device 2 comprises an hourglass spring 21 vertically arranged on a frame, the hourglass spring 21 is arranged at two sides of the traveling wheel 3 to form elastic support for the vehicle body, the hourglass spring 21 comprises a conical upper rubber layer 211, a conical lower rubber layer 212 which is mirror-symmetrical to the conical upper rubber layer 211, a middle plate 213 which is vulcanized and connected with the conical upper rubber layer 211 and the conical lower rubber layer 212, an upper mounting plate 214 which is vulcanized on the top surface of the conical upper rubber layer 211 and is fixed with the frame, and a lower mounting plate 215 which is vulcanized on the bottom surface of the conical lower rubber layer 212 and is fixed with the frame, a stop block 216 which is vertically separated from and does not contact with the middle plate 213 is fixed on the lower mounting plate 215, the stop block 216 is abutted against the middle plate 213 along with the compression of the hourglass spring, so that the hourglass spring forms variable stiffness, the bearing capacity of the hourglass spring is improved, and the stop block 216 plays a role of rigid support for the vehicle body after the conical upper rubber layer 211 and the conical lower rubber layer 212 fail, avoid losing efficacy because of rubber creep etc. and leading to the incident, set up damping device 2 in the both sides of walking wheel 3, hourglass spring 21 among the damping device 2 forms vertical support and the vertical vibration of buffering automobile body to the automobile body, and hourglass spring can also alleviate partial rotatory impact, improves the carriage and the bogie is rotatory smooth-going, improves the travelling comfort of taking.
The damping device 2 further comprises hydraulic dampers 22 obliquely arranged on the framework, wherein the hydraulic dampers 22 are symmetrically arranged on two sides of the hourglass spring 21 and form elastic support for the vehicle body together with the hourglass spring 21. As shown in the drawings, the hydraulic shock absorbers 22 are obliquely provided at both sides of the frame, and are extended and contracted according to the load change of the vehicle body, the hydraulic shock absorbers 22 support the vehicle body and absorb the vibration of the vehicle body by being extended and contracted, when the train passes a curve or the load is uneven, the inclination angle of the train body is limited, four-point elastic support formed by the running wheels 3 on the train body is combined with the support of the hydraulic shock absorbers 22 on two sides of the running wheels 3 on the train body, can effectively prevent the vehicle body from overturning in a curve or during load deviation, improves the running safety of the vehicle, replaces a complex air spring vibration damping structure of the locomotive by a combined vibration damping structure of the hourglass spring 21, the hydraulic shock absorber 22 and the inflatable traveling wheels, under the condition of meeting the requirements of the sightseeing train on less load change, simple load working condition and low running speed for damping, simplify the shock-absorbing structure in the bogie, reduce the space volume, satisfy the structural requirement of the small-size bogie of compactness.
The technical solutions of the embodiments of the present invention are fully described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Claims (10)
1. Bogie drive and shock attenuation assembly adorns on the framework, including the damping device who is used for the drive arrangement of drive vehicle operation and reduces the automobile body vibrations, and drive arrangement's quantity is two and the symmetry sets up on the framework, and two walking wheels of installation are gone on every drive arrangement, and the damping device symmetry sets up in the both sides of walking the wheel, its characterized in that: the driving device comprises a driving motor, a speed reducer connected with an output shaft of the driving motor through a coupler, and a wheel pair transmission assembly connected with the output shaft of the speed reducer to drive walking wheels to synchronously rotate, wherein the walking wheels on the outer side are coaxially positioned on the wheel pair transmission assembly, and the walking wheels on the inner side are axially compressed and positioned on the wheel pair transmission assembly.
2. The truck drive and shock assembly of claim 1, wherein: the wheel pair transmission assembly comprises a transmission shaft, a wheel hub and an axial pressing piece, wherein the inner end of the transmission shaft is connected with an output shaft of the speed reducer, the wheel hub is coaxially fixed with the outer end of the transmission shaft, and the traveling wheel is axially pressed and positioned on the wheel hub through the axial pressing piece and synchronously rotates along with the wheel hub.
3. The truck drive and shock assembly of claim 2, wherein: the transmission shaft is sleeved with a hollow shaft in a clearance fit manner, the hollow shaft is fixed with the framework, the hub is sleeved on the hollow shaft and is radially supported and positioned between the hub and the hollow shaft through a tapered roller bearing with a labyrinth seal structure, the outer end of the transmission shaft extends out of the hollow shaft and is radially outwards turned to be coaxially fixed with the hub, the two tapered roller bearings are respectively pressed between the hollow shaft and the hub, one tapered roller bearing is close to the outer side of the hub, the other tapered roller bearing is close to the inner end of the hub, and the two tapered roller bearings are arranged in a back-to-back manner.
4. The truck drive and shock assembly of claim 2, wherein: the travelling wheels comprise rims which are sleeved on a hub in an interference mode and pneumatic rubber tires which are arranged on the rims, the rims of the two travelling wheels are axially spaced, and the two rims are axially pressed and positioned on the hub by the axial pressing piece.
5. The truck drive and shock assembly of claim 4, wherein: the axial compression piece comprises a compression block fixed with the hub and a wheel backing ring arranged between the two rims, the compression block compresses the rim on the outer side inwards in the axial direction, the compression force is transmitted to the rim on the inner side through the wheel backing ring, and the rim on the inner side is compressed on the hub.
6. The truck drive and shock assembly of claim 5, wherein: the wheel comprises a pressing block, a wheel cushion ring, a wheel body and a wheel hub, wherein the pressing block is fixed with the outer end face of the wheel hub, a first inclined face in press fit with the pressing block is arranged on the inner wall of the wheel hub on the outer side, a pressing gap is formed between the first inclined face and the outer wall of the wheel hub, the pressing block extends into the pressing gap and is in contact with the first inclined face and the outer wall of the wheel hub in a fitting mode respectively, the wheel cushion ring is sleeved on the wheel hub in an interference fit mode and is clamped between the two wheel rims, and the axial pressing force is transmitted to the inner wheel rim.
7. The truck drive and shock assembly of claim 6, wherein: and a second inclined plane in compression fit with the hub is arranged on the inner rim, a positioning inclined plane in compression fit with the second inclined plane is arranged on the hub, and the second inclined plane is compressed on the positioning inclined plane to axially position the inner rim on the hub.
8. The truck drive and shock assembly of claim 4, wherein: the rim is provided with a tire pressure monitoring induction alarm which can monitor the tire pressure of the pneumatic rubber tire and send out an alarm when the tire pressure is lower than a preset value, and the induction probe end of the tire pressure monitoring induction alarm is attached to the inner wall of the pneumatic rubber tire.
9. The truck drive and shock assembly of claim 1, wherein: damping device include along the vertical hourglass spring of dress on the framework, hourglass spring sets up and forms elastic support to the automobile body in the both sides of walking the wheel, hourglass spring includes toper rubber layer, rubber layer under the toper with toper rubber layer mirror symmetry, vulcanize the intermediate lamella that connects toper rubber layer and toper rubber layer down, vulcanize on the toper on the top surface of rubber layer and the fixed last mounting panel of framework and vulcanize under the toper bottom surface on rubber layer and with the fixed lower mounting panel of framework, fixed and the vertical noncontacting backstop piece that separates of intermediate lamella on the lower mounting panel, the backstop piece offsets with the intermediate lamella along with hourglass spring's compression.
10. The truck drive and shock assembly of claim 9, wherein: the damping device further comprises hydraulic dampers obliquely arranged on the framework, the hydraulic dampers are symmetrically arranged on two sides of the hourglass spring and form elastic support for the vehicle body together with the hourglass spring.
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| CN202111493014.8A CN114104011B (en) | 2021-12-08 | 2021-12-08 | Bogie driving and damping assembly |
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| CN202111493014.8A CN114104011B (en) | 2021-12-08 | 2021-12-08 | Bogie driving and damping assembly |
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| CN114104011B CN114104011B (en) | 2023-03-17 |
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Cited By (1)
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|---|---|---|---|---|
| CN115447624A (en) * | 2022-10-09 | 2022-12-09 | 泉州装备制造研究所 | A monorail inspection car |
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