CN118810851B - One-series suspension positioning structure, bogie and railway vehicle - Google Patents
One-series suspension positioning structure, bogie and railway vehicleInfo
- Publication number
- CN118810851B CN118810851B CN202411205512.1A CN202411205512A CN118810851B CN 118810851 B CN118810851 B CN 118810851B CN 202411205512 A CN202411205512 A CN 202411205512A CN 118810851 B CN118810851 B CN 118810851B
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- CN
- China
- Prior art keywords
- arm end
- seat
- bogie
- motor
- positioning structure
- Prior art date
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Classifications
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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
- B61F5/36—Arrangements for equalising or adjusting the load on wheels or springs, e.g. yokes
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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
- B61F5/50—Other details
- B61F5/52—Bogie frames
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to the field of railway vehicles, and provides a primary suspension positioning structure, a bogie and a railway vehicle. The suspension positioning structure comprises a pair of fork arms, a motor and a motor, wherein the fork arms comprise a single arm end and a double arm end connected with the single arm end, the single arm end is connected with a shaft sleeve of an axle, the double arm end is connected with a framework of a bogie, the suspension is suitable for realizing longitudinal, radial and vertical positioning with the framework through the pair of fork arms, one side of the motor is arranged on the shaft sleeve, and the other side of the motor is connected with the framework. The primary suspension positioning structure realizes the longitudinal, radial and vertical accurate positioning between the primary suspension system and the framework of the bogie through the connection of the pair of fork arms, namely, the mode of realizing positioning through the axle box body in the related technology can be changed, the structure can be simplified, the light weight design is facilitated because the arrangement of the axle box body is omitted, the complexity of the primary suspension positioning structure is simplified, the number of required parts is reduced, and the weight of the whole vehicle is reduced.
Description
Technical Field
The invention relates to the field of railway vehicles, and provides a primary suspension positioning structure, a bogie and a railway vehicle.
Background
In the related art, in order to realize the positioning of the primary suspension, the connection of the axle box body, the axle sleeve, the motor and the frame are mostly adopted to realize the positioning of the primary suspension. However, with the proposal of the design requirement of the light weight of the railway vehicle, the one-system suspension positioning structure has the defects of complex structure, complicated positioning and low positioning precision.
Disclosure of Invention
The embodiment of the invention provides a primary suspension positioning structure, which is used for solving the defect of complex primary suspension positioning structure in the related art.
The embodiment of the invention also provides a bogie.
The embodiment of the invention also provides a railway vehicle.
An embodiment of a first aspect of the present invention provides a primary suspension positioning structure, including:
The fork arms comprise a single arm end and a double arm end connected with the single arm end, the single arm end is connected with a shaft sleeve of an axle, the double arm end is connected with a framework of a bogie, and a primary suspension is suitable for realizing longitudinal, radial and vertical positioning with the framework through the pair of fork arms;
And one side of the motor is arranged on the shaft sleeve, and the other side of the motor is connected with the framework.
According to one embodiment of the invention, the device further comprises a mounting seat, wherein the mounting seat is arranged on the shaft sleeve, and the single-arm end is connected with the mounting seat.
According to one embodiment of the invention, the single-arm end is provided with a first node shaft in a penetrating manner, the first node shaft is arranged on the mounting seat in a penetrating manner, and two ends of the first node shaft are respectively provided with a deflection vibration damping piece.
According to one embodiment of the invention, the mount comprises:
The seat body is connected with the shaft sleeve;
the buckle cover is arranged on the base body, and the buckle cover is buckled with the base body to form an installation space for installing the single arm end.
According to one embodiment of the invention, the device further comprises a connecting seat, wherein the connecting seat is arranged with the framework, and the double-arm end is connected with the connecting seat.
According to one embodiment of the invention, the two arm ends are provided with second node shafts in a penetrating manner, the second node shafts are arranged on the connecting seat in a penetrating manner, and the positions of the second node shafts corresponding to the two arm ends are provided with laminated vibration reduction pieces.
According to one embodiment of the invention, the motor further comprises a step seat, wherein the step seat is arranged with the shaft sleeve, and one side of the motor is arranged on the step seat.
According to one embodiment of the invention, the motor is mounted to the frame by a vertical boom, and the motor is mounted to the vertical boom by a vertical boom.
An embodiment of a second aspect of the present invention provides a bogie comprising:
a beam portion integrally formed of carbon fibers;
a leaf spring connected to the beam portion in the vehicle longitudinal direction;
The above-mentioned first suspension positioning structure, wherein the two arm ends and the other side of the motor are connected to the beam portion.
According to one embodiment of the invention, a cavity is formed on the beam part, the plate spring penetrates through the cavity, an anti-side rolling seat and an anti-serpentine seat are arranged on the outer side wall of the cavity, and the vertical hanging seat is arranged on the top of the beam part.
According to one embodiment of the invention, the cross beam part is provided with a spring seat, the spring seat is provided with a positioning guide post, and the spring body is suitable for being mounted on the spring seat through the positioning guide post.
According to one embodiment of the invention, the beam part is provided with a central hole, and the wall of the central hole is provided with a transverse stop seat.
An embodiment of a third aspect of the present invention provides a rail vehicle comprising a primary suspension positioning structure as described above;
or a bogie as described above.
According to the first aspect of the invention, the first suspension positioning structure provides positioning between the first suspension system and the frame in the vehicle length direction and the vehicle height direction through the connection mode of the single arm end and the double arm end, and the connection of the double arm end and the frame provides positioning between the first suspension system and the frame in the vehicle width direction, namely, the first suspension positioning structure provided by the embodiment of the invention realizes accurate positioning between the first suspension system and the frame of the bogie in the longitudinal direction, the radial direction and the vertical direction through the connection of the pair of fork arms. This multidirectional positioning not only enhances the stability of the connection between the axle and the frame, but also ensures stability and safety under different operating conditions. The stability of the axle in the advancing direction is ensured by the longitudinal positioning, the axle is prevented from being offset in the horizontal direction by the radial positioning, the perpendicularity between the axle and the ground is ensured by the vertical positioning, and the vibration and the noise are reduced. More importantly, the mode of realizing positioning through the axle box in the related art can be changed through the connection of the pair of fork arms, and the arrangement of the axle box is omitted, so that the structure can be simplified, and the design of light weight is facilitated. In addition, the connection mode of the double-arm end and the framework, and the integrated installation of the motor, the shaft sleeve and the framework enhance the structural strength and the durability of the whole suspension system. The design enables the system to bear larger load and impact, prolongs the service life and reduces the failure rate. The motor is directly arranged on the shaft sleeve and connected with the framework, so that the complexity of the primary suspension positioning structure is simplified, the number of required parts is reduced, and the weight of the whole vehicle is reduced. Through reasonable layout design, the primary suspension positioning structure realizes integration of multiple functions in a limited space, optimizes the overall layout of the vehicle, and improves the space utilization rate of the vehicle.
According to the bogie provided by the embodiment of the second aspect of the invention, the whole weight of the bogie is remarkably reduced by adopting the cross beam part integrally formed by carbon fibers. The carbon fiber material has high strength, low density and excellent corrosion resistance, and is an ideal choice for realizing light-weight design. The lightweight bogie not only can improve the energy efficiency of the vehicle, but also can reduce the energy consumption of the vehicle during running, and simultaneously improves the acceleration performance and the braking performance of the vehicle. The high strength properties of the carbon fiber material ensure stability and reliability of the beam portion when subjected to complex loads. The high-strength beam part is combined with a series of suspension positioning structures, so that impact force from wheels and rails can be effectively dispersed and absorbed, other parts of a vehicle are protected from being damaged, and the service life is prolonged. The leaf springs that connect along the length direction of the vehicle cooperate with a series of suspension positioning structures to provide good dynamics for the vehicle. The leaf spring can absorb and disperse vibration energy, reduces jolt and noise in the vehicle driving process, and improves riding comfort. Meanwhile, the accurate multidirectional positioning of the primary suspension positioning structure ensures good contact between the wheels and the track, and improves the running stability and safety of the vehicle.
According to the railway vehicle provided by the embodiment of the third aspect of the invention, the running stability and the safety of the railway vehicle can be obviously improved no matter the primary suspension positioning structure or the bogie is adopted. The primary suspension positioning structure ensures good contact between the wheels and the track through accurate multidirectional positioning, and reduces derailment risks caused by vibration and impact. The bogie further enhances the stability and safety of the vehicle through the high-strength, lightweight design and optimized dynamic performance. The integrated primary suspension positioning structure or the bogie can effectively absorb and disperse vibration energy from wheels and rails, and reduce jolt and noise in the running process of the vehicle, so that riding comfort is remarkably improved. The railway vehicle provided by the embodiment of the invention can adapt to various running environments, including curves with different curve radiuses, road sections with different gradients and the like.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of an angle of a bogie provided by the present invention.
Fig. 2 is a schematic perspective view of another angle of the bogie provided by the present invention.
Fig. 3 is a schematic perspective view of a bogie void spring and transverse stop damper provided by the present invention.
Fig. 4 is a schematic perspective view of a bushing and wheel set provided by the present invention.
Fig. 5 is a schematic perspective view of a beam portion and a leaf spring provided by the present invention.
Fig. 6 is a schematic perspective view of a yoke provided by the present invention.
Fig. 7 is a schematic cross-sectional view of a first node shaft and a single arm end provided by the present invention.
Fig. 8 is a schematic cross-sectional view of a second node shaft and a double arm end provided by the present invention.
Reference numerals:
100. yoke, 102, single arm end, 104, double arm end, 106, bushing, 108, frame, 110, motor, 112, mount, 114, first node shaft, 116, yaw damper, 118, body, 120, buckle closure, 122, connector, 124, second node shaft, 126, laminate damper, 128, step seat, 130, vertical boom, 132, beam portion, 134, leaf spring, 136, cavity, 138, vertical hanger, 140, anti-side roll seat, 142, anti-serpentine seat, 146, positioning guide post, 148, center hole, 150, lateral stop seat.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 8, a first aspect of the present invention provides a suspension positioning structure, comprising:
A pair of fork arms 100, the fork arms 100 comprising a single arm end 102 and a double arm end 104 connected to the single arm end 102, the single arm end 102 being connected to a hub 106 of an axle, the double arm end 104 being connected to a frame 108 of the bogie, a suspension adapted to achieve longitudinal, radial and vertical positioning with the frame 108 by means of the pair of fork arms 100;
and a motor 110, one side of the motor 110 is mounted on the shaft sleeve 106, and the other side of the motor 110 is connected to the frame 108.
According to the first aspect of the present invention, the suspension positioning structure provides positioning between the suspension system and the frame 108 in the longitudinal direction and the height direction by connecting the single arm end 102 and the double arm end 104, and the connection between the double arm end 104 and the frame 108 provides positioning between the suspension system and the frame 108 in the width direction, that is, the suspension positioning structure provided by the embodiment of the present invention achieves accurate positioning between the suspension system and the frame 108 of the bogie in the longitudinal direction, the radial direction and the vertical direction by connecting the pair of fork arms 100. This multidirectional positioning not only enhances the stability of the connection between the axle and the frame 108, but also ensures stability and safety under different operating conditions. The stability of the axle in the advancing direction is ensured by the longitudinal positioning, the axle is prevented from being offset in the horizontal direction by the radial positioning, the perpendicularity between the axle and the ground is ensured by the vertical positioning, and the vibration and the noise are reduced. More importantly, the mode of positioning through the axle box in the related art can be changed by connecting the pair of fork arms 100, and the arrangement of the axle box is omitted, so that the structure can be simplified, and the design of light weight can be realized. In addition, the manner in which the dual arm end 104 is coupled to the frame 108, and the integrated mounting of the motor 110 to the sleeve 106 and the frame 108, enhances the structural strength and durability of the overall suspension system. The design enables the system to bear larger load and impact, prolongs the service life and reduces the failure rate. The motor 110 is directly mounted on the sleeve 106 and connected to the frame 108, which not only simplifies the complexity of the primary suspension positioning structure, reduces the number of required components, but also reduces the weight of the entire vehicle. Through reasonable layout design, the primary suspension positioning structure realizes integration of multiple functions in a limited space, optimizes the overall layout of the vehicle, and improves the space utilization rate of the vehicle.
With continued reference to fig. 1-8, a first aspect of the present invention provides a primary suspension positioning structure for enhancing the stability of the connection between the axle and the bogie in a railway vehicle and the positioning accuracy of the primary suspension system.
The primary suspension positioning structure is realized by the connection of a pair of fork arms 100 and the connection of a motor 110. Specifically, the yoke 100 is a core component of the suspension-based positioning structure, and the yoke 100 includes a single-arm end 102 and a double-arm end 104 coupled to the single-arm end 102. The single arm end 102 is directly connected to the axle sleeve 106 of the axle, and the double arm end 104 is designed to connect to the frame 108 of the bogie. This design allows the primary suspension to precisely position the frame 108 in three longitudinal, radial and vertical directions through the pair of yoke arms 100, ensuring stability and safety of the vehicle under different driving conditions.
It can be appreciated that, since the single arm end 102 and the double arm end 104 are connected to each other, and the single arm end 102 is connected to the sleeve 106 and the double arm end 104 is connected to the frame 108, a right triangle connection structure can be formed by the double arm end 104 and the single arm end 102, and since the triangle itself has high structural stability, the connection between the frame 108 and the sleeve 106 is realized through the fork arm 100, and the positioning of the sleeve 106 and the frame 108 in the vehicle length direction (longitudinal direction) and the vehicle height direction (vertical direction) can be realized. Also, since the double arm end 104 has two connecting arms, the two connecting arms are connected to the frame 108, and positioning of the boss 106 and the frame 108 in the vehicle width direction (transverse direction) can be also achieved. Therefore, the shaft sleeve 106 and the framework 108 can be positioned in the longitudinal direction, the vertical direction and the transverse direction simultaneously only through the fork arm 100, and the step of arranging the axle box body to realize primary suspension positioning in the related technology is omitted. And due to the omission of the axle box body, the positioning complexity of the primary suspension positioning structure can be reduced, the positioning precision of the primary suspension positioning structure is improved, and the lightweight design of the vehicle is facilitated.
One side of the motor 110 is mounted on the shaft sleeve 106, and the other side of the motor 110 is connected to the frame 108 of the bogie, so that the design not only simplifies the power transmission path, but also realizes the integrated design of the motor 110 and the bogie, and reduces the number of parts and the weight.
By the design of the pair of yoke arms 100, a stable and accurate positioning is achieved between the primary suspension system and the frame 108 of the bogie. The positioning accuracy not only ensures the mounting positioning accuracy between the primary suspension and the frame 108, but also enhances the overall stability of the vehicle structure, and also improves the shock resistance and vibration resistance of the vehicle under different driving conditions. The longitudinal, radial and vertical positioning functions of the fork arms 100 ensure accurate alignment between the axle and the truck. The accurate alignment reduces abrasion and vibration caused by deviation and improves running stability and riding comfort of the vehicle.
According to one embodiment of the present invention, the device further comprises a mounting base 112, wherein the mounting base 112 is disposed on the shaft sleeve 106, and the single arm end 102 is connected to the mounting base 112.
Referring to fig. 4, in one embodiment of the present invention, a series of suspension positioning structures have been added with a mount 112 in addition to a pair of prongs 100 and a motor 110.
The mount 112 is provided on the boss 106 of the axle as a mounting member for connecting the yoke 100 and the boss 106. The mounting base 112 is firmly mounted on the shaft sleeve 106 by a fastener or other connection means, so as to ensure the connection stability of the mounting base 112 and the shaft sleeve 106.
The single-arm end 102 of the yoke 100 is directly coupled to the mounting block 112 as described above, which provides a more secure and reliable connection between the single-arm end 102 and the bushing 106, while also facilitating installation and maintenance.
The addition of the mounting block 112 further enhances the stability of the connection between the yoke 100 and the bushing 106. The mounting base 112, as a mounting component between the single arm end 102 and the bushing 106, can disperse and bear the load from the yoke 100, reducing the direct force on the bushing 106, and thus extending the service life of the bushing 106. The design of the mounting seat 112 makes the stress of the fork arm 100 more uniform and reasonable, and the stress distribution of the fork arm 100 in the longitudinal, radial and vertical directions can be optimized by adjusting the position and the shape of the mounting seat 112, so that vibration and abrasion caused by uneven stress are reduced.
In addition, the design of the mounting base 112 also facilitates the installation and maintenance of the yoke 100, and when the yoke 100 needs to be replaced or repaired, the mounting base 112 and the yoke 100 can be detached and installed only by loosening fasteners connecting the mounting base and the yoke 100, without detaching the whole shaft sleeve 106.
The close fit of the mounting block 112 with the bushing 106 and the precise positioning of the fork arms 100 by the mounting block 112 ensure a high degree of precision alignment between the axle and the truck. The high-precision alignment reduces vibration and noise caused by deviation and improves running stability and riding comfort of the vehicle.
According to one embodiment of the present invention, the single arm end 102 is provided with a first node shaft 114, the first node shaft 114 is provided with a mounting seat 112 in a penetrating manner, and two ends of the first node shaft 114 are respectively provided with a deflection damping member 116.
Referring to fig. 6 and 7, in one embodiment of the present invention, in order to enhance the vibration damping effect and deflection stability of the primary suspension positioning structure, a first node shaft 114 is disposed through the single arm end 102, and the first node shaft 114 is simultaneously mounted in the mounting seat 112, so that the connection between the single arm end 102 and the mounting seat 112 is more stable, and a corresponding mounting position is provided for the arrangement of the deflection vibration damping element 116.
The deflection vibration reduction members 116 provided at both ends of the first node shaft 114, respectively, and the deflection vibration reduction members 116 may be made of an elastic material (e.g., rubber, etc.), which can absorb and disperse vibration energy generated due to the interaction of the wheels and the rail during the running of the vehicle, thereby reducing the influence of vibration on the structure of the vehicle. At the same time, the deflection damping member 116 also allows the single arm end 102 to deflect within a certain range to accommodate the lifting of the frame 108 in the vertical direction during the running of the vehicle, and more importantly, by the arrangement of the deflection damping member 116, the frame 108 can realize the compensation of deflection amount through the deflection damping member 116 even if a certain amount of deflection occurs in the horizontal plane.
Therefore, the arrangement of the deflection vibration reduction piece 116 remarkably improves the vibration reduction effect of the primary suspension positioning structure, the deflection vibration reduction piece 116 can effectively absorb and disperse vibration energy, the influence of vibration on vehicle structures, components and passengers is reduced, and the riding comfort is improved. The deflection damping piece 116 not only has damping effect, but also allows the single-arm end 102 to deflect within a certain range, and the design ensures that the vehicle can better adapt to various complex road conditions and track conditions in the running process, maintains good contact between wheels and the track, and improves the running stability and safety of the vehicle. The yaw damper 116 also helps to extend the service life of the vehicle by reducing the effects of vibration and shock on the vehicle structure. Particularly for the critical components of the axle, bushing 106, yoke 100, etc., reducing vibration and shock can significantly reduce the risk of wear and fatigue damage.
According to one embodiment of the invention, the mount 112 includes:
a base 118, the base 118 being connected to the sleeve 106;
The buckle cover 120 is mounted on the base 118, and the buckle cover 120 and the base 118 are buckled to form a mounting space for mounting the single arm end 102.
Referring to fig. 4, in one embodiment of the present invention, the mounting base 112 is mainly composed of two parts, namely, a base 118 and a cover 120, and the base 118 and the cover 120 cooperate to provide a stable and easy-to-install mounting space for the single-arm end 102.
Specifically, the housing 118 is an integral part of the mounting block 112, and the housing 118 is directly connected to the axle sleeve 106 of the axle. The base 118 may be fastened to the sleeve 106 by a fastener (such as a bolt, a nut, etc.), or by welding, integrally forming, etc., to ensure the connection stability with the sleeve 106.
The cover 120 is another part of the mounting base 112, and the cover 120 is mounted on the base 118 and is buckled with the base 118, so as to form a semi-closed mounting space. The mounting space is used to receive and secure the single-arm end 102 of the yoke 100 and the first node axle 114 on the single-arm end 102, ensuring that the single-arm end 102 and the first node axle 114 on the single-arm end 102 are firmly connected to the mounting block 112.
By dividing the mounting base 112 into the base 118 and the buckle cover 120, the mounting process of the single-arm end 102 of the fork arm 100 is more convenient. In the process of installation, the single arm end 102 and the first node shaft 114 can be connected, then the whole assembly is placed into an installation space formed by the base 118 and the buckle cover 120, and finally the buckle cover 120 is buckled to complete the installation. The design greatly simplifies the installation steps and improves the installation efficiency. When maintenance or replacement of the yoke 100 is required, the installation space can be opened by just loosening the buckle cover 120, and corresponding operations can be performed. The design makes maintenance work simpler and faster, and reduces maintenance cost and time.
In addition, the tight engagement between the cover 120 and the base 118 also helps to improve the tightness of the installation space, preventing dust, moisture, etc. from entering the interior and damaging the fork arm 100 and the first node shaft 114, etc. The sealing design can prolong the service life of the parts and improve the overall performance of the vehicle.
According to one embodiment of the present invention, the present invention further includes a connection base 122, wherein the connection base 122 is disposed with the frame 108, and the dual-arm end 104 is connected to the connection base 122.
Referring to fig. 1, 2 and 5, in one embodiment of the present invention, a component of the connection base 122 is introduced to further enhance the connection stability and maintenance convenience of the primary suspension positioning structure. The connection base 122 is provided on the frame 108 of the bogie, and the two arm ends 104 of the fork arms 100 are directly connected to this connection base 122.
The connecting base 122 is a connecting structure specially configured to meet the connection requirements of the two arm ends 104 of the fork arm 100, the connecting base 122 is firmly mounted on the frame 108 of the bogie, and the firm connection between the connecting base 122 and the frame 108 can be ensured by welding, bolting or other reliable fixing methods.
In other embodiments, the connecting base 122 may further have a certain adjusting function to meet the connection requirements of different vehicles or different working conditions. For example, the connection between dual-arm end 104 and frame 108 may be optimized by adjusting the position or angle of connection mount 122 to improve overall stability and performance.
The introduction of the connecting base 122 further enhances the connection stability between the yoke 100 and the frame 108, and ensures that the double-arm end 104 can remain stable and not fall off when being subjected to various loads and vibrations through the firm connection base 122 and the butt joint design of the connecting base 122 and the double-arm end 104, thereby improving the reliability and safety of the whole primary suspension positioning structure. The design of the connection base 122 facilitates the installation and maintenance of the yoke 100. During installation, only the double-arm end 104 and the connecting seat 122 are required to be accurately abutted and fixed, and during maintenance, the fork arm 100, the connecting seat 122 and other parts can be easily detached and replaced only by loosening the connecting piece, so that maintenance cost and time are reduced.
According to one embodiment of the present invention, the two-arm end 104 is provided with a second node shaft 124, the second node shaft 124 is provided with a connecting seat 122 in a penetrating manner, and a laminated vibration damper 126 is provided at a position of the second node shaft 124 corresponding to the two-arm end 104.
Referring to fig. 6 and 8, in one embodiment of the present invention, in order to further enhance the vibration damping effect of the primary suspension positioning structure, a second joint shaft 124 is disposed on the dual-arm end 104, and a corresponding laminated vibration damper 126 is disposed at a position of the second joint shaft 124 corresponding to the dual-arm end 104.
Specifically, the dual-arm end 104 is provided with a second joint shaft 124, and the second joint shaft 124 not only serves to connect the dual-arm end 104 with the connection base 122, but also provides an installation location for the placement of the laminated vibration damper 126.
The second node shaft 124 is disposed through the connection base 122 and matches with corresponding structures (such as holes, slots, etc.) in the connection base 122 to ensure connection stability and accuracy.
A laminated damper 126 is provided at a position of the second joint shaft 124 corresponding to the double-arm end 104, that is, at a portion of the second joint shaft 124 penetrating the double-arm end 104 and extending into the connection base 122. The laminated damping member 126 is typically formed of multiple layers of materials of different materials and different hardness that are capable of producing relative motion when subjected to vibration, thereby dissipating the vibrational energy for damping purposes.
The inclusion of the laminated vibration damper 126 provides a good vibration damping performance at the junction between the dual arm end 104 and the connection mount 122, and when the vehicle is externally excited, the laminated vibration damper 126 can rapidly respond and absorb vibration energy, thereby reducing the impact of vibration on the vehicle structure, components and passengers and improving ride comfort and vehicle stability. By reducing shock and fatigue damage to the connection structure from vibration, the laminated vibration damper 126 also helps to extend the service life of the two-arm end 104, the second joint shaft 124, the connection mount 122, and other components, not only reduces maintenance costs of the vehicle, but also improves overall performance and reliability of the vehicle.
According to one embodiment of the present invention, the motor further includes a step 128, the step 128 is disposed with the shaft sleeve 106, and one side of the motor 110 is mounted to the step 128.
Referring to fig. 4, in one embodiment of the present invention, a step 128 is further provided on the sleeve 106 in order to optimize the installation position of the motor 110 and to increase the integration of the entire suspension system.
The step 128 may be connected to the shaft sleeve 106 by welding, bolting, or the like, and one side of the motor 110 is mounted on the step 128, which not only stabilizes the position of the motor 110, but also helps reduce the influence of vibration of the motor 110 on other components of the suspension system. In addition, the step 128 can also realize a positioning function for the mounting position of the motor 110 and the shaft sleeve 106, so as to ensure the connection precision of the motor 110 and the shaft sleeve 106.
It should be noted that, in the embodiment of the present invention, one motor 110 may be mounted on two step seats 128.
That is, the arrangement of the step seat 128 makes the installation position of the motor 110 more accurate, so that the influence of the vibration of the motor 110 on other components of the suspension system can be effectively reduced, and the stability and reliability of the whole system are improved. In addition, by adjusting the height of the step 128, the mounting position and mounting height of the different motors 110 can also be matched to accommodate different vehicle layouts and suspension system requirements.
According to one embodiment of the invention, the apparatus further comprises a vertical boom 130, the vertical boom 130 being connected to the frame 108, the other side of the motor 110 being mounted to the vertical boom 130.
Referring to fig. 2, a vertical boom 130 is attached to the truck frame 108 and is used to effect attachment of the motor 110 to the frame 108, the primary function of which is to provide vertical support and restraint for installation of the motor 110.
The vertical boom 130 provides a firm support for the other side of the motor 110, making the installation of the motor 110 more stable. This stability helps reduce the effects of motor 110 vibration on other components of the suspension system, improving overall system reliability and service life. The vertical boom 130 and the two step seats 128 together form a three-point suspension of the motor 110, and the suspension manner is helpful for optimizing the stress state of the motor 110, reducing the moment and stress concentration phenomenon generated by single-point suspension, and improving the operation efficiency and stability of the motor 110.
Of course, in other embodiments, the motor 110 may be coupled to the frame using other coupling means. As previously described, the manner of connection of the motor 110 to the frame can be flexibly selected based on practical requirements, since the yoke 100 already enables a three-way positioning in the lateral, vertical and axial directions for a primary suspension system.
An embodiment of a second aspect of the present invention provides a bogie comprising:
a beam portion 132, the beam portion 132 being integrally formed of carbon fiber;
A plate spring 134 connected to the beam portion 132 in the vehicle longitudinal direction;
the other side of the arm end 104 and the motor 110 is connected to the beam 132 as in the above-described one-system suspension positioning structure.
According to the bogie provided by the embodiment of the second aspect of the present invention, the whole weight of the bogie is significantly reduced by adopting the carbon fiber integrally formed beam portion 132. The carbon fiber material has high strength, low density and excellent corrosion resistance, and is an ideal choice for realizing light-weight design. The lightweight bogie not only can improve the energy efficiency of the vehicle, but also can reduce the energy consumption of the vehicle during running, and simultaneously improves the acceleration performance and the braking performance of the vehicle. The high strength characteristics of the carbon fiber material ensure stability and reliability of the beam portion 132 when subjected to complex loads. The high-strength beam portion 132 is combined with a series of suspension positioning structures, so that impact force from wheels and rails can be effectively dispersed and absorbed, other parts of the vehicle are protected from damage, and the service life is prolonged. The leaf springs 134, which are attached in the length direction, cooperate with a series of suspension positioning structures to provide good vehicle dynamics. The leaf springs 134 can absorb and disperse vibration energy, reduce jolt and noise during running of the vehicle, and improve riding comfort. Meanwhile, the accurate multidirectional positioning of the primary suspension positioning structure ensures good contact between the wheels and the track, and improves the running stability and safety of the vehicle.
Referring to fig. 1 to 3 and 5, the embodiment of the second aspect of the present invention provides a bogie that integrates a carbon fiber integrally formed beam portion 132, a leaf spring 134 connected in the vehicle length direction, and the above-described primary suspension positioning structure.
Specifically, the beam portion 132 is formed by integrally molding carbon fibers as a key load bearing and connecting member of the bogie. The carbon fiber material has high strength, light weight and good fatigue resistance, and the beam part 132 manufactured by the integral molding process has compact structure, light weight, strong bearing capacity and durability. The manufacturing process enables the bogie to be reduced in weight without sacrificing structural strength and stability.
The leaf spring 134 serves as an important elastic element in the secondary suspension system, and the leaf spring 134 is connected to the beam portion 132 in the vehicle length direction. The layout mode is beneficial to dispersing and absorbing vibration and impact generated in the running process of the vehicle, and improves riding comfort and running stability. The connection of leaf spring 134 to beam portion 132 may be accomplished using corresponding positioning seats. The bogie further incorporates the primary suspension positioning structure of the above-described embodiment, which ensures stability and reliability of the motor 110 and other suspension components during vehicle travel. The design of the dual arm end 104 in the yoke 100 provides additional support and stop functions that help reduce vibration and displacement of the motor 110. The other side of the motor 110 is connected to the beam portion 132 through the vertical boom 130 to ensure that the motor 110 is stable and not prone to sway in the suspension system.
According to one embodiment of the present invention, a cavity 136 is formed on the beam portion 132, a plate spring 134 is inserted into the cavity 136, an anti-rolling seat 140 and an anti-serpentine seat 142 are provided on the outer side wall of the cavity 136, and a vertical hanging seat 138 is provided on the top of the beam portion 132.
Referring to fig. 5, in an advanced embodiment of the present invention, a cavity 136 is formed on the beam portion 132, a plate spring 134 is penetrated in the cavity 136, a side rolling resistance seat 140 and a serpentine resistance seat 142 are further provided on the outer side wall of the cavity 136, and a vertical hanging seat 138 is further provided on the top of the scale.
Specifically, cavity 136 formed in beam portion 132 is specifically designed to accommodate leaf spring 134, which not only saves space, but also allows for more accurate and consistent installation and positioning of leaf spring 134. The leaf spring 134 acts as an elastic member in the suspension system, and is effective in absorbing and dispersing vibration and shock generated during running of the vehicle.
To further enhance the anti-roll and anti-serpentine capabilities of the truck, anti-roll seats 140 and anti-serpentine seats 142 are also provided on the outer side walls of cavity 136. The anti-roll mounts 140 and the anti-serpentine mounts 142 are used to mount anti-roll torsion bars and anti-serpentine dampers, respectively.
In the embodiment of the invention, the anti-roll seat 140 can be connected to the frame 108 through bolts, the anti-roll seat 140 is arranged to protrude outwards from the side wall of the frame 108, and the anti-roll torsion bar is arranged on the anti-roll seat 140, so that the vehicle can provide additional supporting force when the vehicle rolls, the roll amplitude is reduced, and the lateral stability of the vehicle is improved. The anti-serpentine seat 142 can effectively inhibit serpentine motion (i.e. left-right swing of the vehicle body) possibly generated when the vehicle runs at a high speed, so as to ensure the straight running stability and safety of the vehicle.
A vertical hanger 138 is also provided at the top of the beam portion 132 for mounting and supporting the vertical boom 130. As previously described, the vertical boom 130 is used to transfer the weight of the motor 110 and the vertical load of the motor 110 to the frame 108.
Through structural designs of the cavity 136, the plate spring 134, the anti-rolling seat 140, the anti-serpentine seat 142, the vertical hanging seat 138 and the like, the stability of the vehicle in the running process is optimized, and potential safety hazards and uncomfortable feeling caused by vibration, rolling and serpentine motion can be effectively reduced.
According to one embodiment of the present invention, the cross beam portion 132 is provided with a spring seat, the spring seat is provided with a positioning guide post 146, and the spring body is adapted to be mounted to the spring seat by the positioning guide post 146.
Referring to fig. 3 and 5, in order to further enhance the performance of the secondary suspension system, a spring seat and a positioning guide post 146 connected to the spring seat are added to the beam portion 132.
The air spring seats are carefully provided at both end positions of the beam portion 132 for carrying and fixing the air spring body. A positioning guide post 146 is arranged on the air spring seat, and the main function of the positioning guide post 146 is to guide and fix the installation position of the air spring body. That is, the air spring body may be mounted on the air spring seat by the positioning guide posts 146, and during the mounting process, the mounting holes of the air spring body are aligned with and tightly fit with the positioning guide posts 146 to fix the air spring body on the air spring seat.
The mounting mode ensures the stability and the reliability of the air spring body in the suspension system, and is also beneficial to improving the shock absorption performance and riding comfort of the whole suspension system. By mounting the air spring body on the beam portion 132 and precisely positioning and fixing the air spring body by means of the positioning guide posts 146, the damping effect of the secondary suspension system can be further improved, and jolt and vibration in the running process of the vehicle can be reduced. The positioning guide posts 146 ensure the accuracy and stability of the installation of the air spring body, so that the shaking and noise problems caused by improper installation are reduced, and the overall stability and running safety of the vehicle are improved.
According to one embodiment of the present invention, the beam portion 132 is provided with a central hole 148, and the wall of the central hole 148 is provided with a lateral stop 150.
Referring to fig. 5, in one embodiment of the present invention, a central hole 148 is provided in the beam portion 132, and a lateral stopper 150 is provided on the wall of the central hole 148. This design is intended to provide additional support and stop functions.
The beam portion 132 has a circular or square hole 148, and the size and shape of the hole 148 can be set according to the specific application and the requirements of the secondary suspension system.
A transverse stop 150 is provided on the wall of the central bore 148, and the transverse stop 150 may be welded, bolted, or otherwise connected to the beam portion 132.
The main function of the transverse stop seat 150 is to provide transverse limiting and supporting functions, and when the secondary suspension system is subjected to transverse force (such as vehicle turning, side wind and other working conditions), the transverse stop seat 150 can limit the vehicle body to generate transverse displacement, so that the vehicle body is prevented from exceeding the design range.
By providing the central hole 148 in the beam portion 132 and providing the lateral stop 150, additional support and limiting functions can be provided without reducing the overall structural strength of the beam, which is helpful for improving the overall structural strength and stability of the secondary suspension system. The lateral stop 150 can precisely limit the lateral displacement range of the vehicle body, prevent the vehicle body from excessively displacing when receiving lateral force, and help to reduce potential safety hazards caused by excessively large lateral displacement of the vehicle body.
An embodiment of a third aspect of the present invention provides a rail vehicle comprising a primary suspension positioning structure as described above;
or a bogie as described above.
According to the railway vehicle provided by the embodiment of the third aspect of the invention, the running stability and the safety of the railway vehicle can be obviously improved no matter the primary suspension positioning structure or the bogie is adopted. The primary suspension positioning structure ensures good contact between the wheels and the track through accurate multidirectional positioning, and reduces derailment risks caused by vibration and impact. The bogie further enhances the stability and safety of the vehicle through the high-strength, lightweight design and optimized dynamic performance. The integrated primary suspension positioning structure or the bogie can effectively absorb and disperse vibration energy from wheels and rails, and reduce jolt and noise in the running process of the vehicle, so that riding comfort is remarkably improved. The railway vehicle provided by the embodiment of the invention can adapt to various running environments, including curves with different curve radiuses, road sections with different gradients and the like.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present invention.
Claims (11)
1. A primary suspension positioning structure comprising:
The fork arms comprise a single arm end and a double arm end connected with the single arm end, the single arm end is connected with a shaft sleeve of an axle, the double arm end is connected with a framework of a bogie, and a primary suspension is suitable for realizing longitudinal, radial and vertical positioning with the framework through the pair of fork arms;
one side of the motor is arranged on the shaft sleeve, and the other side of the motor is connected with the framework;
The mounting seat is arranged on the shaft sleeve, and the single-arm end is connected with the mounting seat;
the single-arm end is provided with a first node shaft in a penetrating mode, the first node shaft is arranged on the mounting seat in a penetrating mode, and two ends of the first node shaft are respectively provided with a deflection vibration reduction piece.
2. The primary suspension positioning structure of claim 1, wherein the mount comprises:
The seat body is connected with the shaft sleeve;
the buckle cover is arranged on the base body, and the buckle cover is buckled with the base body to form an installation space for installing the single arm end.
3. The structure according to claim 1, further comprising a connection base provided to the frame, the two arm ends being connected to the connection base.
4. A primary suspension positioning structure according to claim 3, wherein a second node shaft is provided on the two arm ends in a penetrating manner, the second node shaft is provided on the connection base in a penetrating manner, and a laminated vibration damper is provided at a position of the second node shaft corresponding to the two arm ends.
5. The primary suspension positioning structure according to any one of claims 1 to 4, further comprising a step seat provided to the boss, one side of the motor being mounted to the step seat.
6. The primary suspension positioning structure of any of claims 1-4, further comprising a vertical boom connected to the frame, the other side of the motor being mounted to the vertical boom.
7. A bogie which comprises a frame body and a plurality of steering wheels, characterized by comprising the following steps:
a beam portion integrally formed of carbon fibers;
a leaf spring connected to the beam portion in the vehicle longitudinal direction;
a primary suspension positioning structure according to any one of claims 1 to 6, wherein said double arm end and the other side of said motor are connected to said beam portion.
8. The bogie of claim 7, wherein the beam portion is formed with a cavity, the leaf spring is disposed through the cavity, an outer sidewall of the cavity is provided with an anti-side rolling seat and an anti-serpentine seat, and a top of the beam portion is provided with a vertical hanging seat.
9. The bogie of claim 7, wherein the cross beam portion is provided with a coil spring seat, the coil spring seat is provided with a positioning guide post, and the coil spring body is adapted to be mounted to the coil spring seat by the positioning guide post.
10. A bogie as claimed in any one of claims 7 to 9 in which the beam portion is provided with a central aperture, the aperture wall of which is provided with a transverse stop.
11. A rail vehicle comprising a primary suspension positioning structure according to any one of claims 1 to 6;
or a bogie as claimed in any one of claims 7 to 10.
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| CN119527369A (en) * | 2023-08-30 | 2025-02-28 | 中车青岛四方机车车辆股份有限公司 | Wheel sets, bogies and rail vehicles |
| CN119527376A (en) * | 2023-08-30 | 2025-02-28 | 中车青岛四方机车车辆股份有限公司 | Axle sleeve structures, wheelsets, bogies and rail vehicles |
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| US4537137A (en) * | 1982-03-01 | 1985-08-27 | White Machinery Corporation | Combination railcar moving vehicle and trailer spotter |
| CN111469872A (en) * | 2020-05-29 | 2020-07-31 | 西南交通大学 | Permanent magnet motor and axle box integrated drive structure |
| CN214356038U (en) * | 2020-12-07 | 2021-10-08 | 西南交通大学 | Articulated framework bogie of rail vehicle |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119527369A (en) * | 2023-08-30 | 2025-02-28 | 中车青岛四方机车车辆股份有限公司 | Wheel sets, bogies and rail vehicles |
| CN119527376A (en) * | 2023-08-30 | 2025-02-28 | 中车青岛四方机车车辆股份有限公司 | Axle sleeve structures, wheelsets, bogies and rail vehicles |
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