Driving and braking integrated driving system, bogie and railway vehicle

Abstract

The invention relates to the field of railway vehicle braking systems, and provides a driving and braking integrated driving system, a bogie and a railway vehicle. The driving and braking integrated driving system comprises a driving motor; the gear box is in transmission connection with the driving motor; the inertia shaft is arranged on the side, away from the small gear, of the large gear in the gear box, an installation part is arranged on the inertia shaft, and a brake is installed on the installation part. According to the driving and braking integrated driving system provided by the embodiment of the invention, the inertia shaft is arranged on the gear box, and the brake is arranged on the mounting part of the inertia shaft, so that when the brake acts, the braking force can be transmitted into the gear box through the inertia shaft to realize braking. When the gear box transmits power, the driving and braking integrated driving system can normally output power, the technical problem that a braking system is independently arranged on a wheel pair in the related technology is solved, the structure is simplified, and the integrated design of driving and braking is achieved.

Description

Technical Field

[0001] The invention relates to the field of rail vehicle braking systems and provides a driving and braking integrated driving system, a bogie and a rail vehicle. Background Art

[0002] In the related art, in order to achieve the braking of the rail vehicle, a separate brake needs to be arranged on the wheelset, and when the moving disc and the fixed disc of the brake contact each other, the wheelset is braked. However, such arrangement leads to a complex structure of the wheelset and high design cost. Summary of the invention

[0003] The embodiment of the present invention provides a driving and braking integrated driving system, which is used to solve the defect of complex structure of the braking system in the related art and realize the driving and braking integrated design of the driving system.

[0004] The present invention provides a driving and braking integrated driving system, comprising:

[0005] Drive motor;

[0006] A gear box, drivingly connected to the drive motor;

[0007] The idle shaft is arranged on a side of the large gear in the gear box away from the small gear. The idle shaft is provided with a mounting portion, and a brake is mounted on the mounting portion.

[0008] The first aspect of the present invention provides a driving and braking integrated driving system, which is provided by arranging an idle shaft on the gear box and arranging a brake on the mounting portion of the idle shaft, so that when the brake is actuated, the braking force can be transmitted to the gear box through the idle shaft to achieve braking. When the gear box transmits power, the driving and braking integrated driving system can output power normally, which solves the technical problem of separately arranging a braking system on a wheelset in the related art, simplifies the structure, and realizes an integrated design of driving and braking.

[0009] According to an embodiment of the present invention, the mounting portion comprises a tapered shaft, the tapered shaft is arranged at the section of the idle shaft extending out of the housing of the gear box, and the brake is arranged on the tapered shaft.

[0010] According to an embodiment of the present invention, the mounting portion includes face teeth, the face teeth are arranged on the section of the idler shaft extending out of the gear box body, and the brake is arranged on the face teeth.

[0011] According to one embodiment of the present invention, the axis of the idler shaft is parallel to the axis of the driving gear in the gearbox.

[0012] According to an embodiment of the present invention, the mounting portion is disposed on a side of the idle shaft facing the wheel or a side facing the drive motor.

[0013] According to an embodiment of the present invention, an actuating member is provided on the brake, a moving disc in the brake is connected to the actuating member, and a fixed disc in the brake is connected to the inertial shaft.

[0014] According to an embodiment of the present invention, a solenoid valve is connected to the brake, and the solenoid valve is suitable for controlling the brake based on a brake signal.

[0015] A second aspect of the present invention provides a bogie, comprising the above-mentioned integrated drive and brake drive system.

[0016] The bogie provided in the embodiment of the second aspect of the present invention can simplify the structure of the bogie and realize the integrated installation and integrated design of the bogie by providing the above-mentioned drive and brake integrated drive system.

[0017] According to one embodiment of the present invention, the bogie comprises a frame, and the drive motor is suitable for being elastically suspended on the frame.

[0018] A third aspect of the present invention provides a rail vehicle, comprising the above-mentioned drive-brake integrated drive system;

[0019] Or the bogie mentioned above.

[0020] The rail vehicle provided in the embodiment of the third aspect of the present invention can realize an integrated design of the drive system by providing the above-mentioned drive-brake integrated drive system or the above-mentioned bogie.

[0021] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0022] The first aspect of the present invention provides a driving and braking integrated driving system, which is provided by arranging an idle shaft on the gear box and arranging a brake on the mounting portion of the idle shaft, so that when the brake is actuated, the braking force can be transmitted to the gear box through the idle shaft to achieve braking. When the gear box transmits power, the driving and braking integrated driving system can output power normally, which solves the technical problem of separately arranging a braking system on a wheelset in the related art, simplifies the structure, and realizes an integrated design of driving and braking.

[0023] Furthermore, the bogie provided in the embodiment of the second aspect of the present invention can simplify the structure of the bogie and realize the integrated installation and integrated design of the bogie by providing the above-mentioned drive and brake integrated drive system.

[0024] Furthermore, the rail vehicle provided in the embodiment of the third aspect of the present invention can realize an integrated design of the drive system by providing the above-mentioned drive-brake integrated drive system or the above-mentioned bogie. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a schematic structural diagram of the drive-brake integrated drive system provided by the present invention;

[0027] Figure 2 is a schematic structural diagram of the brake provided by the present invention;

[0028] Figure 3 It is a schematic structural diagram of the bogie provided by the present invention.

[0029] Reference numerals:

[0030] 100, driving motor; 102, gear box; 104, idler shaft; 106, brake; 108, tapered shaft; 110, frame; 112, axle; 116, coupling; 118, rubber cake; 120, actuating part. DETAILED DESCRIPTION

[0031] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] like Figure 1 to Figure 2 As shown, the present invention provides a driving and braking integrated driving system, comprising:

[0033] Driving motor 100;

[0034] The gear box 102 is drivingly connected to the driving motor 100;

[0035] The idler shaft 104 is disposed on a side of the large gear in the gear box 102 away from the small gear. A mounting portion is disposed on the idler shaft 104 , and a brake 106 is mounted on the mounting portion.

[0036] The driving and braking integrated driving system provided by the embodiment of the first aspect of the present invention is provided with an idle shaft 104 on the gear box 102, and a brake 106 is provided on the mounting portion of the idle shaft 104, so that when the brake 106 is actuated, the braking force can be transmitted to the gear box 102 through the idle shaft 104 to achieve braking. When the gear box 102 transmits power, the driving and braking integrated driving system can output power normally, which solves the technical problem of separately providing a braking system on a wheelset in the related art, simplifies the structure, and realizes an integrated design of driving and braking.

[0037] Please continue to see Figure 1 to Figure 2 In the embodiment of the present invention, the drive motor 100 can use a drive motor 100 that can output torque, such as a motor. A coupling 116 is provided on the output shaft of the drive motor 100. It can be understood that the drive motor 100 can achieve transmission connection with the gear box 102 through the coupling 116. That is, the output shaft of the drive motor 100 can achieve transmission connection with the input shaft of the gear box 102 through the coupling 116.

[0038] An idle shaft 104 is also provided on one side of the gear box 102 , and the idle shaft 104 is transmission-connected to the gear box 102 . The idle shaft 104 mentioned here refers to a shaft that only changes the direction of the output torque of the gear box 102 , and does not achieve a change in the transmission ratio.

[0039] A mounting portion is provided on the tapered shaft 108, and the mounting portion is used to mount the brake 106. In the embodiment of the present invention, the brake 106 can use a disc brake 106. When braking is required, the movable disc and the fixed disc of the disc brake 106 contact and rub against each other to generate a braking force, and the braking force is transmitted to the axle 112 through the idle shaft 104 to achieve braking. When driving is required, the movable disc and the fixed disc of the disc brake 106 are separated from each other, the braking force is eliminated, and the drive motor 100 can normally drive the wheel through the gear box 102.

[0040] According to one embodiment of the present invention, the mounting portion includes a tapered shaft 108 . The tapered shaft 108 is disposed at a section of the idle shaft 104 extending out of a housing of the gear box 102 . The brake 106 is disposed on the tapered shaft 108 .

[0041] In one embodiment, the mounting portion includes a tapered shaft 108, and accordingly, a pinion shaft is provided on the gearbox 102, and the pinion shaft extends out of the section of the gearbox 102 for mounting the tapered shaft 108. The brake 106 mentioned above can be mounted on the tapered shaft 108. By mounting the brake 106 on the tapered shaft 108, the brake 106 will not generate stress concentration due to the variable cross-section and uneven strength of the tapered shaft 108, thereby improving the mounting stability and mounting strength of the brake 106.

[0042] According to an embodiment of the present invention, the mounting portion includes a face gear, the face gear is disposed on the section of the idle shaft 104 extending out of the housing of the gear box 102 , and the brake 106 is disposed on the face gear.

[0043] In another embodiment, the mounting portion includes a face gear, and accordingly, a pinion shaft is provided on the gear box 102, and the pinion shaft extends out of the section of the gear box 102 for mounting the face gear. The brake 106 mentioned above can be mounted on the face gear. By mounting the brake 106 on the face gear, the transmission between the brake 106 and the face gear is more stable, and the transmission efficiency is reliable.

[0044] According to one embodiment of the present invention, the axis of the idler shaft 104 is parallel to the axis of the driving gear in the gear box 102 .

[0045] See also Figure 1 The axis of the idle shaft 104 is parallel to the axis of the driving gear in the gear box 102 . By setting it in this way, the direction of rotation of the transmission mechanism in the gear box 102 can be changed through the idle shaft 104 without changing the transmission ratio in the gear box 102 .

[0046] According to an embodiment of the present invention, the mounting portion is disposed on a side of the idle shaft 104 facing the wheel or a side facing the drive motor 100 .

[0047] It is understandable that, in the embodiment of the present invention, the mounting portion can be disposed on the side of the idle shaft 104 facing the wheel or on the side of the idle shaft 104 facing the drive motor 100. That is, in the embodiment of the present invention, the specific position of the mounting portion can be flexibly selected. For example, the mounting position of the mounting portion can be flexibly selected according to the location of the drive motor 100 and the wheel.

[0048] According to one embodiment of the present invention, Figure 1 As shown, the idle shaft 104 is arranged on the side of the gear box 102 away from the drive motor 100. This arrangement can avoid interference between the idle shaft 104 and the drive motor 100, which is beneficial to the installation of the brake 106.

[0049] According to an embodiment of the present invention, a solenoid valve is connected to the brake 106 , and the solenoid valve is suitable for controlling the brake 106 based on the brake signal.

[0050] It can be understood that when braking is required, the controller can control the action of the solenoid valve, that is, the solenoid valve can control the movable plate and the fixed plate in the brake 106 to contact each other based on the braking signal to generate friction, and then the friction force can be transmitted to the axle 112 and the wheel to achieve the braking effect.

[0051] See also Figure 2According to one embodiment of the present invention, an actuating member 120 is provided on the brake 106 , the moving plate in the brake 106 is connected to the actuating member 120 , and the fixed plate in the brake 106 is connected to the inert shaft 104 .

[0052] See also Figure 2 An actuating member 120 is provided on the brake 106. The actuating member 120 may be composed of a plurality of hydraulic cylinders. When the hydraulic cylinders are actuated, the movable plate can be pushed toward the fixed plate, thereby generating friction between the movable plate and the fixed plate, so that the fixed plate synchronously drives the idle shaft 104 to stop rotating, thereby achieving braking.

[0053] like Figure 3 As shown, a second embodiment of the present invention provides a bogie, comprising the above-mentioned drive-braking integrated drive system.

[0054] The bogie provided in the embodiment of the second aspect of the present invention can simplify the structure of the bogie and realize the integrated installation and integrated design of the bogie by providing the above-mentioned drive and brake integrated drive system.

[0055] According to one embodiment of the present invention, the bogie includes a frame 110 , and the drive motor 100 is suitable for being elastically suspended on the frame 110 .

[0056] In the embodiment of the present invention, four hanging points are symmetrically arranged on both sides of the axis of the wheelset shaft sleeve, and the drive motor 100 is connected to the four hanging points through elastic nodes. For example, a hanging hole is arranged on the frame 110, and a hanging rod is connected through the hanging hole. A rubber cake 118 is arranged on the hanging rod, and the rubber cake 118 is located in the hanging hole. The lower end of the hanging rod extends to the drive motor 100 of the wheelset shaft sleeve and is fixedly connected to the drive motor 100. In this way, the elastic hanging of the drive motor 100 can be realized, and problems such as connection failure of the drive motor 100 due to vibration stress can be avoided.

[0057] A third aspect of the present invention provides a rail vehicle, comprising the above-mentioned drive-braking integrated drive system; or the above-mentioned bogie.

[0058] The rail vehicle provided in the embodiment of the third aspect of the present invention can realize an integrated design of the drive system by providing the above-mentioned drive-brake integrated drive system or the above-mentioned bogie.

[0059] The rail vehicle provided in the embodiment of the third aspect of the present invention may be an intercity train or a high-speed train.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drive-brake integrated drive system, characterized in that: include: A driving motor (100); A gear box (102) drivingly connected to the driving motor (100); An idle shaft (104) is arranged on a side of the large gear in the gear box (102) away from the small gear. A mounting portion is arranged on the idle shaft (104), and a brake (106) is mounted on the mounting portion.

2. The driving and braking integrated driving system according to claim 1, characterized in that: The mounting portion comprises a tapered shaft (108), the tapered shaft (108) being arranged at a section of the idler shaft (104) extending out of a housing of the gear box (102), and the brake (106) being arranged on the tapered shaft (108).

3. The driving and braking integrated driving system according to claim 1, characterized in that: The mounting portion comprises an end face tooth, the end face tooth being arranged on a section of the idle shaft (104) extending out of a housing of the gear box (102), and the brake (106) being arranged on the end face tooth.

4. The drive-brake integrated drive system according to claim 2 or 3, characterized in that: The axis of the idle shaft (104) is parallel to the axis of the driving gear in the gear box (102).

5. The driving and braking integrated driving system according to claim 4, characterized in that: The mounting portion is arranged on a side of the idle shaft (104) facing the wheel or a side facing the drive motor (100).

6. The drive-brake integrated drive system according to any one of claims 1 to 3, characterized in that: The brake (106) is provided with an actuating member (120), the moving disc in the brake (106) is connected to the actuating member (120), and the fixed disc in the brake (106) is connected to the inertial shaft (104).

7. The drive-brake integrated drive system according to any one of claims 1 to 3, characterized in that: The brake (106) is connected to a solenoid valve, and the solenoid valve is suitable for controlling the brake (106) based on a brake signal.

8. A bogie, characterized in that: It comprises the drive-brake integrated drive system as claimed in any one of claims 1 to 7.

9. The bogie according to claim 8, characterized in that The bogie comprises a frame (110), and the drive motor (100) is suitable for being elastically suspended on the frame (110).

10. A rail vehicle, characterized in that: It comprises a drive-brake integrated drive system as claimed in any one of claims 1 to 7; Or a bogie as claimed in claim 8 or 9.

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