CN112092834A - Three-point elastic frame suspension direct-drive driving device - Google Patents
Three-point elastic frame suspension direct-drive driving device Download PDFInfo
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- CN112092834A CN112092834A CN202010949664.8A CN202010949664A CN112092834A CN 112092834 A CN112092834 A CN 112092834A CN 202010949664 A CN202010949664 A CN 202010949664A CN 112092834 A CN112092834 A CN 112092834A
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- Prior art keywords
- suspension
- driving motor
- motor
- transmission shaft
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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
- B61C9/44—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with hollow transmission shaft concentric with wheel axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
- B61C9/38—Transmission systems in or for locomotives or motor railcars with electric motor propulsion
- B61C9/48—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension
- B61C9/50—Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/32—Guides, e.g. plates, for axle-boxes
- B61F5/325—The guiding device including swinging arms or the like to ensure the parallelism of the axles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The embodiment of the invention provides a three-point elastic frame suspension direct-drive driving device, and relates to the technical field of rail transit vehicles. The three-point elastic frame suspension direct-drive type driving device comprises a suspension frame, a wheel pair, a driving motor, a first transmission mechanism, a second transmission mechanism and a transmission shaft, wherein the driving motor is suspended on the suspension frame, the transmission shaft is inserted into a rotor of the driving motor, an axle of the wheel pair is sleeved with the transmission shaft, an output shaft of the driving motor is connected with one end of the transmission shaft through the first transmission mechanism so as to transmit power to the transmission shaft, the other end of the transmission shaft is connected with the axle of the wheel pair through the second transmission mechanism, and the driving motor is connected with the suspension frame through a three-point elastic suspension mechanism. Compared with the traditional motor arrangement mode, the three-point elastic frame suspension direct-drive driving device provided by the embodiment of the invention has the advantages that the occupied space is small, the mass of the wheel pair below the primary suspension device is favorably reduced, and the running speed of the motor train unit is effectively improved.
Description
Technical Field
The invention relates to the technical field of rail transit vehicles, in particular to a three-point elastic frame suspension direct-drive type driving device.
Background
The bogie has the functions of bearing, driving, buffering, guiding and braking and is an important part in the railway vehicle. The bogie of the motor train unit adopts a two-system spring suspension system, and the mass from the wheel set to the part below a primary suspension device is called as the unsprung mass of the bogie. The unsprung mass affects the wheel-rail acting force, and further restricts the speed of the motor train unit from increasing.
Existing bogies employ a motor to drive a gearbox, which transmits torque to a gear via a plurality of intermeshing gears within the gearbox to drive the wheel in relative rotation. The whole transmission mechanism is relatively complex, and the existence of the gear box causes the unsprung mass to be high.
Disclosure of Invention
The embodiment of the invention provides a three-point elastic frame suspension direct-drive type driving device, which is used for solving the defect of high unsprung mass caused by complex driving structure of a bogie in the prior art, and realizing the reduction of unsprung mass so as to improve the running speed of a motor train unit.
The embodiment of the invention provides a three-point elastic frame suspension direct drive type driving device which comprises a suspension frame, a wheel pair, a driving motor, a first transmission mechanism, a second transmission mechanism and a transmission shaft, wherein the driving motor is suspended on the suspension frame, the transmission shaft is inserted into a rotor of the driving motor, the transmission shaft is sleeved on an axle of the wheel pair, an output shaft of the driving motor is connected with one end of the transmission shaft through the first transmission mechanism so as to transmit power to the transmission shaft, the other end of the transmission shaft is connected with the axle of the wheel pair through the second transmission mechanism, and the driving motor is connected with the suspension frame through a three-point elastic suspension mechanism.
According to the three-point elastic frame suspension direct-drive type driving device provided by the embodiment of the invention, the suspension frame comprises a suspension seat and a suspension beam transversely arranged on the suspension seat, and the suspension seat is connected with the driving motor through the three-point elastic suspension mechanism.
According to the three-point elastic frame suspension direct-drive driving device provided by the embodiment of the invention, the three-point suspension mechanism comprises two suspension rods, one end of each suspension rod is connected with the suspension seat, the other end of each suspension rod is connected with the driving motor, the driving motor is provided with a mounting seat, and the suspension seat and the mounting seat are connected through a rubber joint.
According to the three-point elastic frame suspension direct-drive type driving device provided by the embodiment of the invention, the suspension rod is elastically connected with the suspension frame and/or the suspension rod is elastically connected with the driving motor through a rubber joint.
According to the three-point elastic frame suspension direct drive type driving device provided by the embodiment of the invention, three points of a position point where the suspension seat is connected with the two suspension rods and a position point where the suspension seat is connected with the mounting seat are sequentially connected to form an isosceles triangle, and the position where the suspension seat is connected with the mounting seat is the vertex of the isosceles triangle.
According to the three-point elastic frame suspension direct drive type driving device provided by the embodiment of the invention, the first transmission mechanism and the second transmission mechanism are both six-connecting-rod connecting buckles, the output shaft of the driving motor is fixedly connected with a motor connecting disc, the axle of the wheel pair is fixedly sleeved with a transmission disc, two ends of the transmission shaft are respectively and fixedly provided with a first connecting disc and a second connecting disc, and the first connecting disc and the motor connecting disc are respectively connected with the second connecting disc and the transmission disc through one six-connecting-rod connecting buckle.
According to the three-point elastic frame suspension direct-drive type driving device provided by the embodiment of the invention, the first connecting disc, the second connecting disc, the motor connecting disc and the transmission disc are respectively provided with three support lugs in the circumferential direction, the three support lugs of the first connecting disc and the three support lugs of the motor connecting disc are distributed in a staggered mode and are connected through one six-connecting-rod connecting buckle, and the three support lugs of the second connecting disc and the three support lugs of the transmission disc are distributed in a staggered mode and are connected through the other six-connecting-rod connecting buckle.
The three-point elastic frame suspension direct drive type driving device further comprises an axle box, the axle box is located on the inner side of the wheel pair, and the driving motor is arranged between the two axle boxes.
According to the three-point elastic frame suspension direct drive type driving device provided by the embodiment of the invention, the transmission shaft is in a hollow frustum shape, and the large-diameter end of the transmission shaft is closer to the power output end of the driving motor than the small-diameter end of the transmission shaft.
According to the three-point elastic frame suspension direct-drive type driving device provided by the embodiment of the invention, the driving motor is a permanent magnet motor.
According to the three-point elastic frame suspension direct drive type driving device provided by the embodiment of the invention, the driving motor is sleeved on the output transmission shaft, and the transmission shaft is sleeved on the axle of the wheel pair, so that the driving motor is indirectly sleeved on the axle of the wheel pair and transmits power through the transmission shaft; compared with the installation mode that the traditional motor is arranged below the wheel set and the primary suspension device, the driving motor is arranged below the suspension frame by means of the three-point type elastic suspension mechanism and sleeved on the axle of the wheel set, the occupied space is small, the mass of the wheel set below the primary suspension device is favorably reduced, and the running speed of the motor train unit is effectively increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is an exploded view of a three-point elastic suspension direct-drive driving device provided by an embodiment of the invention;
FIG. 2 is a perspective view of a three-point spring suspension direct drive driving apparatus provided by an embodiment of the invention;
fig. 3 is a cross-sectional view of a three-point elastic suspension direct drive type driving device provided by an embodiment of the invention.
Reference numerals:
1. a suspension bracket; 101. a suspension seat; 102. a suspension beam; 2. a wheel set; 3. a drive motor; 301. a mounting seat; 302. a boom mount; 303. a shock absorbing seat; 4. a first transmission mechanism; 5. a second transmission mechanism; 6. a drive shaft; 601. a first splice tray; 602. a second connecting disc; 7. a boom; 8. a shock absorber; 81. an adapter; 9. a motor connecting disc; 10. a drive plate; 11. an axle box; 12. a bearing; 13. a first rubber joint; 14. braking the wheel disc; 15. and a second rubber joint.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "first" and "second" are used for the sake of clarity in describing the numbering of the components of the product and do not represent any substantial difference, unless explicitly stated or limited otherwise. The directions of "up", "down", "left" and "right" are all based on the directions shown in the attached drawings. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the three-point elastic frame suspension direct drive type driving device provided by the embodiment of the invention includes a suspension frame 1, a wheel pair 2, a driving motor 3, a first transmission mechanism 4, a second transmission mechanism 5 and a transmission shaft 6. Wherein, the suspension bracket 1 is used for providing a mounting position for mounting the driving motor 3. The driving motor 3 adopts a permanent magnet motor, and the driving motor 3 is installed on the suspension bracket 1 in a suspension manner. The transmission shaft 6 is inserted into a rotor of the driving motor 3, and the transmission shaft 6 is sleeved on an axle of the wheel pair 2. An output shaft of the driving motor 3 is connected with a transmission shaft 6 through a first transmission mechanism 4, and the transmission shaft 6 rotates in a rotor of the driving motor 3 under the driving of the driving motor 3. The other end of the transmission shaft 6 is connected with the axle of the wheel pair 2 through a second transmission mechanism 5. The driving motor 3 is connected with the suspension bracket 1 through a three-point type elastic suspension mechanism. It should be noted that the outer wall of the transmission shaft 6 is in clearance fit with the mover of the driving motor 3, and the transmission shaft 6 can rotate in the mover of the driving motor 3.
According to the three-point elastic frame suspension direct drive type driving device provided by the embodiment of the invention, the driving motor 3 is sleeved on the driving shaft 6, and the driving shaft 6 is sleeved on the axle of the wheel pair 2, so that the driving motor 3 is indirectly sleeved on the axle of the wheel pair 2 and transmits power through the driving shaft 6. Compared with the installation mode that the traditional motor is arranged below the wheel set and the primary suspension device, the driving motor 3 is arranged below the suspension frame 1 by means of the three-point type elastic suspension mechanism and sleeved on the axle of the wheel set 2, the occupied space is small, the weight of part of the motor is borne by the suspension frame 1, and the mass of the wheel set 2 below the primary suspension device is reduced, so that the motor train unit has higher critical speed, and the running speed of the motor train unit is effectively improved. Meanwhile, the wheel-rail interaction force can be improved, and the service lives of the motor train unit and the motor train unit can be prolonged. Compared with the traditional motor driving mode, the three-point elastic frame suspension direct-drive type driving device provided by the embodiment of the invention realizes the elastic connection between the driving motor 3 and the suspension frame 1 by means of the three-point elastic suspension mechanism, and has smaller vibration and better riding experience compared with rigid connection.
As shown in fig. 1, the suspension bracket 1 comprises a suspension base 101 and a suspension beam 102 transversely arranged on the suspension base 101. The suspension base 101 is connected with the driving motor 3 through a three-point type elastic suspension mechanism. The suspension seat 101 includes a first suspension arm, a second suspension arm and a third suspension arm, the first suspension arm and the third suspension arm are disposed opposite to each other, and two ends of the second suspension arm are respectively fixedly connected to the first suspension arm and the second suspension arm. Of course, the first, second and third suspension arms may also be integrally formed. The suspension beam 102 is fixedly mounted in the middle of the first suspension arm and the third suspension arm. As shown in fig. 1, mounting holes are respectively formed in the middle portions of the first suspension arm and the third suspension arm, and the suspension beam 102 is a cylindrical rod body that is fixed by welding after being fitted into the mounting holes in an interference fit manner. The lateral direction refers to an extending direction of the output shaft of the drive motor 3. Besides, the suspension base 101 may also be a square frame surrounded by four suspension arms or a V-shaped structure assembled by two suspension arms. Compare in the square frame structure that four suspension arms enclose, three suspension arm or two suspension arm's structural style are lighter, help reducing unsprung mass. The three-point elastic suspension mechanism is mounted on the suspension arm of the suspension base 101.
On the basis of the above embodiment, the three-point suspension mechanism includes two suspension rods 7, one end of each suspension rod 7 is connected to the suspension seat 101 in the suspension frame 1, and the other end of each suspension rod 7 is connected to the driving motor 3. As shown in fig. 1, a mounting seat 301 is configured on the driving motor 3, and the suspension seat 101 is connected with the mounting seat 301 through a second rubber joint 15. With continued reference to fig. 1, the driving motor 3 is further configured with two boom mounting seats 302, and the two booms 7 are respectively mounted on the two boom mounting seats 302 on the driving motor 3 to realize connection between the booms 7 and the driving motor 3. Specifically, a rubber joint is mounted at one end or both ends of the boom 7. For example, the suspender 7 is connected with the suspension arm in the suspension bracket 1 through a rubber joint, and the other end of the suspender 7 is connected with the driving motor 3 through a second rubber joint 15; of course, a rubber joint may be installed only at the connection of the boom 7 and the driving motor 3; or rubber joints are respectively arranged at the two ends of the suspender 7. In the embodiment of the present invention, the suspension base 101 is connected to the mounting base 301 through the second rubber joint 15. Specifically, the mounting seat 301 is provided with a through hole, the cylindrical section of the second rubber joint 15 is mounted in the through hole, and two wings of the intermediate shaft of the second rubber joint 15 are respectively connected with the suspension seat 101.
In addition, the driving motor 3 provided by the embodiment of the present invention is further configured with a damping seat 303, one end of the damper 8 is elastically connected to the damping seat 303 through a rubber joint, and the other end of the damper 8 is elastically connected to the adaptor 81 such as a seat body through a rubber joint. The adapter 81 is intended to be welded to the bogie frame.
On the basis of the above embodiment, two position points where the two booms 7 are connected with the driving motor 3 and a position point where the suspension seat 101 is connected with the driving motor 3 are sequentially connected clockwise or counterclockwise to form an isosceles triangle, wherein a connection point of the suspension seat 101 and the mounting seat 301 is a vertex of the isosceles triangle. As shown in fig. 1 and 2, the mount 301 and the boom mount 302 are sequentially connected to form a triangular structure, and the stability of the triangle is used to ensure the stable connection of the driving motor 3. The two boom mounting seats 302 are arranged on the same side of the driving motor 3 along the axial direction of the driving motor 3, and the mounting seat 301 is arranged on the other side of the driving motor 3.
Wherein, the first transmission mechanism 4 and the second transmission mechanism 5 are both six-connecting-rod connecting buckles. As shown in fig. 1, the six-bar connection link may be a straight-link six-bar link, or alternatively, the six-bar connection link may be a bifurcated six-bar link. The first transmission mechanism 4 and the second transmission mechanism 5 may be the same, and both may be six connecting rods in straight linkage or branched linkage, or may be different, and the embodiment of the present invention is not particularly limited. The output shaft of the driving motor 3 is fixedly connected with a motor connecting disc 9 through bolts, pin connection or interference fit, the axle of the wheel set 2 is fixedly provided with a transmission disc 10 through interference fit, two ends of the transmission shaft 6 are respectively and fixedly provided with a first connecting disc 601 and a second connecting disc 602, and the first connecting disc 601 and the motor connecting disc 9 and the second connecting disc 602 are respectively connected with the transmission disc 10 through a six-connecting-rod connecting buckle. The three-point elastic suspension direct-drive driving device provided by the embodiment of the invention stably transmits the torque of the driving motor 3 to the axle of the wheel pair 2 by virtue of the six-connecting-rod buckled first transmission mechanism 4 and the second transmission mechanism 5.
On the basis of the above embodiment, three lugs are respectively arranged on the circumferential directions of the first connecting disc 601, the second connecting disc 602, the motor connecting disc 9 and the transmission disc 10. Wherein, three lugs of the first connecting disc 601 and three lugs of the motor connecting disc 9 are distributed in a staggered manner and connected through a six-link connecting buckle. Specifically, two adjacent sides of the lug of the first connecting disc 601 are the lugs of the motor connecting disc 9, two adjacent sides of each lug of the motor connecting disc 9 are the lugs of the motor connecting disc 9, and each lug is provided with two bolt holes. Each section of the six-link connecting buckle is connected with one lug of the first connecting disc 601 and one lug of the motor connecting disc 9 adjacent to the lug through a bolt. Similarly, the three lugs of the second connecting plate 602 are staggered from the three lugs of the transmission plate 10 and connected by a six-bar connecting link, which will not be described in detail.
In the embodiment of the invention, the three-point elastic frame suspension direct drive type driving device further comprises an axle box 11. The axle boxes 11 are located on the inner side of the wheel sets 2, and the drive motor 3 is arranged between the two axle boxes 11. As shown in fig. 1, the axle housing 11 is mounted on the axle of the wheelset 2 by means of bearings 12; the inner ring of the bearing 12 is fixedly connected with the axle of the wheel set 2, and the outer ring of the bearing 12 is fixedly connected with the axle box 11. Under the drive of the driving motor 3, the axle of the wheel set 2 rotates, the power is transmitted to the axle box 11 by the bearing 12, and one end of the axle box 11 far away from the wheel set 2 is connected with the bogie frame by the first rubber joint 13. The three-point elastic frame suspension direct drive type driving device provided by the embodiment of the invention has the advantages that the axle box is internally arranged, and compared with the traditional axle box which is externally arranged, the transverse length is small, so that the transverse width of a vehicle body is favorably reduced, the wind resistance is reduced, and the running speed of the vehicle body is improved.
As shown in fig. 3, the transmission shaft 6 has a hollow frustum shape, and the large diameter end of the transmission shaft 6 is closer to the power output end of the drive motor 3 than the small diameter end of the transmission shaft 6. As shown in fig. 3, an output shaft of the driving motor 3 is inserted and fixed with a motor connecting disc 9, and the motor connecting disc 9 is connected with a first connecting disc 601 sleeved at the large-diameter end of the transmission shaft 6 through the first transmission mechanism 4. The second connecting disc 602 is sleeved and fixed at the small-diameter end of the transmission shaft 6, and the second connecting disc 602 is connected with the transmission shaft 6 through the second transmission mechanism 5.
As shown in fig. 1, the three-point elastic suspension direct drive type driving device provided by the embodiment of the invention further includes four braking wheel discs 14, each pair of the four braking wheel discs 14 is a pair, and there are two pairs, and each pair of the braking wheel discs 14 is relatively installed on the outer side of the wheel pair 2 through bolts or pins.
As shown in fig. 1, in the three-point elastic suspension direct drive type driving device provided in the embodiment of the present invention, the rotor of the driving motor 3 is a hollow structure, and the frustum-shaped hollow transmission shaft 6 is inserted into the rotor of the driving motor 3. The large-diameter end of the transmission shaft 6 is fixedly inserted in the first connecting disc 601, the first connecting disc 601 is connected with the motor connecting disc 9 through a six-connecting-rod connecting buckle serving as the first transmission mechanism 4, the small-diameter end of the transmission shaft 6 is fixedly inserted in the second connecting disc 602, and the second connecting disc 602 is connected with the transmission disc 10 through a six-connecting-rod connecting buckle serving as the second transmission mechanism 5. The transmission disc 10 is fixed on the axle of the wheel set 2, and the two axle boxes 11 are mounted on the inner side of the wheel set 2 through bearings 12 and distributed on the two opposite sides of the driving motor 3. Wherein the inner side of the wheel-set 2 refers to the position between two wheels of the wheel-set 2. A mount 301, a boom mount 302, and a damper mount 303 are configured on the housing of the drive motor 3. The mounting seats 301 are connected with the suspension arms of the suspension seats 101 in the suspension frame 1 through second rubber joints 15, the suspension rods 7 are respectively mounted on the two suspension rod mounting seats 302, and one ends of the suspension rods 7 far away from the suspension rod mounting seats 302 are connected with the suspension frame 1. The damper 8 is mounted on the damper base 303. A triangular suspension structure is formed by the mounting base 301 and the two suspender mounting bases 302, so that the operation stability is good.
The rubber joints, the first rubber joint 13 and the second rubber joint 15 have the same structure, and have different models and specifications, and are selected according to installation positions.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A three-point elastic frame suspension direct drive type driving device comprises a suspension frame, a wheel pair, a driving motor and is characterized by further comprising a first transmission mechanism, a second transmission mechanism and a transmission shaft, wherein the driving motor is suspended on the suspension frame, the transmission shaft is inserted into a rotor of the driving motor, the transmission shaft is sleeved on an axle of the wheel pair, an output shaft of the driving motor is connected with one end of the transmission shaft through the first transmission mechanism so as to transmit power to the transmission shaft, the other end of the transmission shaft is connected with the axle of the wheel pair through the second transmission mechanism, and the driving motor is connected with the suspension frame through a three-point elastic suspension mechanism.
2. The three-point elastic frame suspension direct drive type driving device according to claim 1, wherein the suspension frame comprises a suspension base and a suspension beam transversely arranged on the suspension base, and the suspension base is connected with the driving motor through the three-point elastic suspension mechanism.
3. A three-point spring suspension direct drive driving device according to claim 2, wherein the three-point suspension mechanism comprises two suspension rods, one end of each suspension rod is connected with the suspension base, the other end of each suspension rod is connected with the driving motor, the driving motor is configured with a mounting base, and the suspension base is connected with the mounting base through a rubber joint.
4. A three point sprung mass suspended direct drive as claimed in claim 3, characterised in that the suspension bar is resiliently connected to the suspension and/or the suspension bar is resiliently connected to the drive motor by a rubber joint.
5. A three-point elastic frame suspension direct drive type driving device according to claim 3, wherein the three points of the position point where the suspension seat is connected with the two suspension rods and the position point where the suspension seat is connected with the mounting seat are sequentially connected to form an isosceles triangle, and the position where the suspension seat is connected with the mounting seat is the vertex of the isosceles triangle.
6. The three-point elastic suspension direct drive type driving device according to claim 1, wherein the first transmission mechanism and the second transmission mechanism are both six-link connecting buckles, a motor connecting disc is fixedly connected to an output shaft of the driving motor, a transmission disc is fixedly sleeved on an axle of the wheel set, a first connecting disc and a second connecting disc are fixedly mounted at two ends of the transmission shaft respectively, and the first connecting disc and the motor connecting disc are connected with the second connecting disc and the transmission disc through one of the six-link connecting buckles respectively.
7. The three-point elastic suspension direct drive type driving device according to claim 6, wherein three lugs are respectively arranged on the first connecting disc, the second connecting disc, the motor connecting disc and the transmission disc in the circumferential direction, the three lugs of the first connecting disc and the three lugs of the motor connecting disc are distributed in a staggered manner and connected through one six-link connecting buckle, and the three lugs of the second connecting disc and the three lugs of the transmission disc are distributed in a staggered manner and connected through the other six-link connecting buckle.
8. A three point sprung mass suspended direct drive as claimed in any one of claims 1 to 7, further including axle boxes located inboard of the wheel pairs, the drive motors being arranged between the axle boxes.
9. The three-point spring suspension direct drive driving device according to any one of claims 1 to 7, wherein the transmission shaft is in a hollow frustum shape, and a large diameter end of the transmission shaft is closer to a power output end of the driving motor than a small diameter end of the transmission shaft.
10. A three point sprung mass suspended direct drive as claimed in any of claims 1 to 7, in which the drive motor is a permanent magnet motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010949664.8A CN112092834A (en) | 2020-09-10 | 2020-09-10 | Three-point elastic frame suspension direct-drive driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010949664.8A CN112092834A (en) | 2020-09-10 | 2020-09-10 | Three-point elastic frame suspension direct-drive driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112092834A true CN112092834A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010949664.8A Pending CN112092834A (en) | 2020-09-10 | 2020-09-10 | Three-point elastic frame suspension direct-drive driving device |
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| CN (1) | CN112092834A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706788A (en) * | 2021-01-18 | 2021-04-27 | 中车工业研究院有限公司 | Elastic transmission device of motor and wheel pair, bogie and motor car |
| CN113607442A (en) * | 2021-09-10 | 2021-11-05 | 中车大同电力机车有限公司 | Motion state monitoring system and locomotive |
-
2020
- 2020-09-10 CN CN202010949664.8A patent/CN112092834A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706788A (en) * | 2021-01-18 | 2021-04-27 | 中车工业研究院有限公司 | Elastic transmission device of motor and wheel pair, bogie and motor car |
| CN113607442A (en) * | 2021-09-10 | 2021-11-05 | 中车大同电力机车有限公司 | Motion state monitoring system and locomotive |
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