6-axle 6-drive independent rotation intelligent control dual-power drive bogie system and vehicle

Abstract

The present invention relates to a 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system and vehicle, including a bogie body, two wheel pairs, four driving gears, two wheel pair driving devices and four gear drive motors; the two wheel pair driving devices are respectively connected to one of the wheel pairs, and each driving gear is respectively connected to one of the gear drive motors; the wheel-rail brake device is fixedly connected to the bogie body, and the four brake discs are respectively fixedly connected to one of the wheels of the two wheel pairs, and the four wheel-rail brake devices are respectively installed in a non-contact matching manner with one of the brake discs. Each driving gear of the present application can rotate independently, be independently controlled, and can rotate differentially with each other, so it can be applied to scenes of straight ramps and scenes of curved ramps, and has a wide range of applications.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and in particular to a 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system and a vehicle. Background Art

[0002] The bogie is one of the most important components in the rail vehicle structure. Its main functions are as follows:

[0003] 1) The purpose of using bogies on vehicles is to increase the load, length and volume of vehicles and improve the running speed of trains to meet the needs of railway transportation development;

[0004] 2) Ensure that under normal operating conditions, the car body can be reliably seated on the bogie, and the rolling of the wheels along the rails is converted into the translation of the car body along the track through the bearing device;

[0005] 3) Support the vehicle body, bear and transmit various loads and forces from the vehicle body to the wheels or from the wheel rails to the vehicle body, and distribute the axle weight evenly.

[0006] 4) Ensure the safe operation of the vehicle, and enable it to run flexibly along straight lines and pass curves smoothly.

[0007] 5) The structure of the bogie should facilitate the installation of the spring damping device so that it has good damping characteristics to alleviate the interaction between the vehicle and the line, reduce vibration and impact, reduce dynamic stress, and improve the stability and safety of vehicle operation.

[0008] 6) Make full use of the adhesion between the wheel and rail to transmit traction and braking force, amplify the braking force generated by the brake cylinder, and make the vehicle have a good braking effect to ensure that it stops within the specified distance.

[0009] 7) The bogie is an independent component of the vehicle, and the number of connecting parts between the bogie and the vehicle body should be reduced as much as possible.

[0010] Chinese patent document CN112874558A discloses a six-axle four-wheel drive bogie assembly, in which two driving gears of the bogie are driven by the same driving device, and the two driving gears cannot rotate differentially, so it can only be used in scenarios of straight ramps. Summary of the invention

[0011] In order to solve the above technical problems, the present application provides a 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system and vehicle.

[0012] This application is implemented through the following technical solutions:

[0013] The 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system provided by the present application includes a bogie body, two wheel sets, four drive gears, two wheel set drive devices and four gear drive motors; the two wheel set drive devices are respectively connected to one of the wheel sets, and each drive gear is respectively connected to one of the gear drive motors. Each drive gear can rotate independently, be independently controlled, and can rotate differentially with each other, so it can be applied to both straight ramp scenes and curved ramp scenes, and has a wide range of applications.

[0014] Optionally, the axis of the driving gear is perpendicular to the axis of the wheelset.

[0015] In particular, the 6-axle 6-drive independently rotating intelligent controlled dual-power drive bogie system also includes 4 wheel-rail brake devices and 4 brake discs. The wheel-rail brake device is fixedly connected to the bogie body, and the 4 brake discs are respectively fixedly connected to one of the wheels of the two wheel pairs, and the 4 wheel-rail brake devices are respectively installed in non-contact cooperation with one of the brake discs.

[0016] In particular, two of the rack drive motors are connected to a gear box A respectively, and two of the drive gears are connected to the output shaft of one of the gear boxes A respectively; the other two rack drive motors are connected to a gear box B respectively, and the other two drive gears are connected to the output shaft of one of the gear boxes B respectively.

[0017] In particular, both gearbox A and gearbox B are connected with a rack brake, which is keyed to the output shaft of the gearbox and fixedly connected to the housing of the gearbox.

[0018] Furthermore, the two gear boxes A are fixedly connected to the mounting bracket A, and the mounting bracket A is connected to the axle of one of the wheel sets through a bearing sleeve;

[0019] The two gear boxes B are fixedly connected to the mounting bracket B, the mounting bracket B is connected to the wheel axle of another wheelset through a bearing sleeve, and the mounting bracket B and the mounting bracket A are respectively connected to the bogie body through a flexible shaft.

[0020] The rail vehicle provided in the present application comprises a car body, a control system and the 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system, wherein the car body is connected to the bogie body through a secondary suspension and a traction device;

[0021] The wheelset driving device and the gear driving motor are both connected to the control system.

[0022] Among them, the two wheel sets are connected to the bogie body through the primary suspension, and the gear box A and the gear box B are connected to the car body through the auxiliary suspension.

[0023] The track system provided in the present application includes steel rails, line racks, a foundation and the rail vehicle, wherein the steel rails are fixedly connected to the foundation, the line racks and the anti-detachment cover are fixedly connected to the foundation, and the line racks are located between the anti-detachment cover and the foundation; the wheelset is placed on the steel rails, and the drive gear is meshed with the line racks.

[0024] Compared with the prior art, this application has the following beneficial effects:

[0025] Each driving gear of the present application can rotate independently, be independently controlled, and can rotate differentially with each other. Therefore, it can be applied to both straight ramp scenarios and curved ramp scenarios, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the embodiments of the present application, constitute a part of the present application, and do not constitute a limitation on the embodiments of the present invention.

[0027] Figure 1 is a top view of a 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system in an embodiment;

[0028] Figure 2 2. It is a bottom view of the 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system in the embodiment;

[0029] Figure 3 is a schematic structural diagram of a rail vehicle in an embodiment;

[0030] Figure 4 is a schematic structural diagram of a track system in an embodiment;

[0031] Figure 5 It is the gear rack power distribution curve;

[0032] In the figure: 1-wheel-rail brake device A, 2-rack brake, 3-gear box A, 4-rack drive motor A, 5-rack drive motor B, 6-mounting bracket, 7-wheel pair drive unit A, 8-brake disc A, 9-bogie body, 10-rack drive motor C, 11-rack drive motor D, 12-gear box B, 13-wheel pair drive unit B, 14-traction device, 15-secondary suspension, 16-primary suspension, 17-car body, 18-auxiliary suspension A, 19-auxiliary suspension B, 20-drive gear A, 21-drive gear B, 22-drive gear C, 23-drive gear D, 24-rail, 25-line rack, 26-anti-slip cover, 27-foundation, 28-wheel pair A, 29-wheel pair B, 30-wheel-rail brake device B, 31-brake disc B, 32-flexible shaft A, 33-flexible shaft B. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "A", "B", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Embodiment 1

[0039] like Figure 1-Figure 4 As shown, the 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system disclosed in this embodiment includes a bogie body 9, a wheel-rail power system and a rack-rail power system.

[0040] The wheel-rail power system includes 2 wheel sets, 2 wheel set drive devices and 4 wheel-rail brake devices. The rack-rail power system includes 4 drive gears, 4 gear drive motors and 4 brakes.

[0041] 1. Connection relationship between components of wheel-rail power system

[0042] The wheelset drive unit A7 is connected to the wheelset A28 to form a first wheel-rail transmission system; similarly, the wheelset drive unit B13 is connected to the wheelset B29 to form a second wheel-rail transmission system.

[0043] Two wheel-rail brake devices A1 are fixedly connected to the bogie body 9, and two brake discs A8 are fixedly connected to one of the wheels of the wheelset A28. At the same time, the two wheel-rail brake devices A1 are respectively installed in non-contact cooperation with one of the brake discs A8. During the travel process, the service braking function is realized by the tight contact between the wheel-rail brake device A1 and the brake disc A8.

[0044] Similarly, the two wheel-rail brake devices B30 are fixedly connected to the bogie body 9, and the two brake discs B31 are respectively fixedly connected to one of the wheels of the wheelset B29. At the same time, the two wheel-rail brake devices B30 are respectively installed in non-contact cooperation with one of the brake discs B31. During the driving process, the service braking function is realized by the tight contact between the wheel-rail brake device B30 and the brake disc B31.

[0045] Wheel set A28 and wheelset B29 are both connected to the bogie body 9 through the primary suspension 16.

[0046] 2. Connection relationship of components of rack power system

[0047] The rack drive motor A4 and the rack drive motor B5 are connected to a gear box A3 respectively. The drive gear A20 and the drive gear B21 are connected to the output shaft of one of the gear boxes A3 respectively, forming a first set of rack transmission system.

[0048] Similarly, the rack drive motor C10 and the rack drive motor D11 are respectively connected to a gear box B12, and the drive gear C22 and the drive gear D23 are respectively connected to the output shaft of one of the gear boxes B12, forming a second rack transmission system.

[0049] It is worth noting that both gearbox A3 and gearbox B12 are connected with rack brake 2. Specifically, rack brake 2 is keyed to the output shaft of gearbox A3 and fixedly connected to the housing of gearbox A3 to realize the braking function of the first set of rack transmission system during the travel process.

[0050] Similarly, the rack brake 2 is keyed to the output shaft of the gear box B12 and fixedly connected to its body, realizing the braking function of the second set of rack transmission system during travel.

[0051] The gearbox A3 is fixedly connected to the mounting bracket 6, and the mounting bracket 6 is connected to the axle of the wheelset A28 through a bearing sleeve; at the same time, the mounting bracket 6 is connected to the bogie body 9 through a flexible shaft A32 to ensure its safe operation.

[0052] Similarly, the gearbox B12 is fixedly connected to the mounting bracket 6, and the mounting bracket 6 is connected to the axle of the wheelset B29 through a bearing sleeve. At the same time, the mounting bracket 6 is connected to the bogie body 9 through a flexible shaft B33, thereby ensuring its safe operation.

[0053] Optionally, wheelset drive unit A7 and wheelset drive unit B13 both include motors.

[0054] The present application integrates two symmetrical gearboxes with the same function, and the two output shafts each independently correspond to a set of drive motors and brakes, and can rotate and brake independently. The gears driven by the two output shafts mesh with both sides of the same line rack at the same time to achieve power transmission of the bogie on the line. Because the center radius of the inner and outer teeth of the same rack are different when the locomotive is turning, the two gears need to have different rotation speeds to ensure the safe and smooth turning of the locomotive. In this way, when the locomotive turns on the line, differential turning can be achieved by controlling the rotation speed of the corresponding gear drive motor. Thereby, the angle of the power source is controlled to solve the steering problem. In addition, when one of the drive motors fails, the normal operation of the locomotive can still be guaranteed.

[0055] The rail vehicle disclosed in this embodiment includes a car body 17 and the above-mentioned 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system. The car body 17 is connected to the bogie body 9 through the secondary suspension 15 and the traction device 14.

[0056] The auxiliary suspension A18 is fixedly connected to the gearbox A3 and the bottom load-bearing point of the vehicle body 17 to improve the mechanical stress state; similarly, the auxiliary suspension B19 is fixedly connected to the gearbox B12 and the bottom load-bearing point of the vehicle body 17 to improve the mechanical stress state.

[0057] Connect the wheel drive unit A7, wheel drive unit B13, rack drive motor A4, rack drive motor B5, rack drive motor C10 and rack drive motor D11 to the control system; adjust the parameters of each motor according to the slope, such as Figure 5 shown.

[0058] It is worth mentioning that when encountering a curved slope, the speed difference between the inner and outer drive gears is adjusted to achieve a smooth turn.

[0059] like Figure 4 As shown, the track system disclosed in this embodiment includes a steel rail 24 , a line rack 25 , a foundation 27 and the above-mentioned rail vehicle. The steel rail 24 is fixedly connected to the foundation 27 , and the wheelset A 28 and the wheelset B 29 are placed on the steel rail 24 .

[0060] The line rack 25 and the anti-drop cover plate 26 are fixedly connected to the base 27 , and the line rack 25 is located between the anti-drop cover plate 26 and the base 27 .

[0061] The driving gear A20 , the driving gear B21 , the driving gear C22 and the driving gear D24 all form gear meshing with the line rack 25 , and the anti-dropout cover plate 26 is located above the driving gears to prevent the driving gears from dropping out of the line rack 25 .

[0062] Each driving gear of the present application can rotate independently, be independently controlled, and can rotate differentially with each other. Therefore, it can be applied to both straight ramp scenarios and curved ramp scenarios, and has a wide range of applications.

[0063] The above specific implementation methods further illustrate the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above are only specific implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rail vehicle, comprising a vehicle body and a control system, characterized in that: It also includes a 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system, wherein the car body is connected to the bogie body through a secondary suspension and traction device; The 6-axle 6-drive independent rotation intelligent control dual-power drive bogie system includes a bogie body, two wheel sets, four drive gears, two wheel set drive devices and four gear drive motors; The two wheel set drive devices are respectively connected to one of the wheel sets, and each driving gear is respectively connected to one of the gear drive motors; Two of the rack drive motors are connected to a gear box A respectively, and two of the drive gears are connected to the output shaft of one of the gear boxes A respectively; the other two rack drive motors are connected to a gear box B respectively, and the other two drive gears are connected to the output shaft of one of the gear boxes B respectively; Gearbox A is fixedly connected to the mounting bracket, and the mounting bracket is connected to the axle of one of the wheelsets through a bearing sleeve; gearbox B is fixedly connected to the mounting bracket, and the mounting bracket is connected to the axle of the other wheelset through a bearing sleeve, and the mounting bracket is connected to the bogie body through a flexible shaft; The two wheelsets are connected to the bogie body through a primary suspension, the wheelset drive device and the gear drive motor are connected to the control system, the gear box A and the gear box B are connected to the car body through the auxiliary suspension, and the auxiliary suspension is fixedly connected to the bearing point at the bottom of the car body.

2. The rail vehicle according to claim 1, characterized in that: The axis of the driving gear is perpendicular to the axis of the wheelset.

3. The rail vehicle according to claim 1 or 2, characterized in that: It also includes 4 wheel-rail brake devices and 4 brake discs. The wheel-rail brake devices are fixedly connected to the bogie body. The 4 brake discs are respectively fixedly connected to one of the wheels of the two wheel pairs. The 4 wheel-rail brake devices are respectively installed in non-contact cooperation with one of the brake discs.

4. The rail vehicle according to claim 1, characterized in that: Gearbox A and gearbox B are both connected with a rack brake, which is keyed to the output shaft of the gearbox and fixedly connected to the housing of the gearbox.

5. A track system, including rails, line racks and foundations, characterized in that: It also includes a rail vehicle as described in any one of claims 1-4, wherein the rails are fixedly connected to the foundation, the line rack and the anti-detachment cover are fixedly connected to the foundation, and the line rack is located between the anti-detachment cover and the foundation; the wheelset is placed on the rails, and the drive gear is meshed with the line rack.

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