Hinge-Type Bogie Frame of Suspended Monorail Vehicle Driven by Permanent Magnet Motor

Abstract

The present invention provides a hinge pin type bogie frame for a suspended monorail vehicle driven by a permanent magnet motor. The frame is composed of a bolster and two side beams. The two side beams are respectively installed at both ends of the bolster in a hinged form. The present invention designs the overall structure of the frame. In order to meet the installation requirements of future axle box direct drive integrated motors, not only the structural weight of the frame is significantly reduced and the size is greatly reduced, but also a large number of traditional bogie components are substantially cut, the moment of inertia is reduced, and the use requirements of the direct drive motor bogie are met.

Description

Technical Field

[0001] The present invention relates to a bogie of a monorail vehicle, and particularly to a hinge - type bogie frame of a suspended monorail vehicle driven by a permanent - magnet motor, belonging to the technical field of rail vehicle manufacturing. Background Art

[0002] With the development of cities, the urban traffic situation has become increasingly severe. The emergence of a large number of private cars has caused urban traffic congestion and low efficiency. Urban rail transit, due to its characteristics of punctuality, high efficiency, and large passenger capacity, is taking up an increasingly large proportion in urban traffic. Among them, the suspended train system occupies little urban space, has little impact on the environment, and does not interfere with other means of transportation.

[0003] Most of the existing bogies of suspended monorail vehicles adopt a bogie structure similar to that of large railways, which is bulky and large in volume. At present, the existing cooperation driving mode of three - phase AC motors and gearboxes has low transmission efficiency, high noise, and high energy consumption. With the development of direct - drive motors, direct - drive motors will surely replace three - phase AC motors in the future and change the traditional driving form. Therefore, it is necessary to provide a bogie frame that is suitable for installing direct - drive motors, with a simple and lightweight structure.

[0004] In a bogie, a drive motor, a primary suspension device, a traction device, etc. are all installed on the bogie. Therefore, the installation positions of these devices will have a great impact on the performance of the entire bogie. Summary of the Invention

[0005] The main purpose of the present invention is to solve the above problems and deficiencies, and provide a hinge - type bogie frame of a suspended monorail vehicle driven by a permanent - magnet motor, which has a simple structure, is lightweight, and is suitable for direct - drive motors.

[0006] To achieve the above - mentioned invention purpose, the technical solution of the present invention is as follows:

[0007] A hinge - type bogie frame of a suspended monorail vehicle driven by a permanent - magnet motor, comprising a center bolster 2 and two side beams 1 perpendicular to the bolster 2 and hinged above the bolster 2. The side beams 1 have a rotational degree of freedom relative to the bolster 2. There are hinge - shaft holes in the middle of the side beams 1. Hinge mounting seats 5 are respectively arranged at both ends of the bolster. Hinge pins 7 are provided in the hinge mounting seats 5. The hinge pins 7 are rotationally connected with the hinge - shaft holes, and the axis of the hinge pins is in the same direction as the transverse center line 10 of the bogie frame.

[0008] At the lower end of the bolster 2, there is also an axle box positioning tie rod seat 3 connected to the permanent magnet direct drive motor. The axle box positioning tie rod seats 3 are symmetrically arranged on the left and right of the longitudinal central axis 9 of the bogie frame. One end of the axle box positioning tie rod 14 is installed on the axle box positioning tie rod seat 3, and the other end is installed on the permanent magnet direct drive motor. The two groups of axle box positioning tie rod seats 3 are connected to the axle box through the tensioned or compressed axle box positioning tie rods; in the middle of the upper surface of the bolster 2, there is a motor positioning tie rod seat 4. The motor positioning tie rod seat 4 is connected to the outer shell of the permanent magnet direct drive motor through the tensioned or compressed motor positioning tie rod. Each motor positioning tie rod seat 4 is provided with two vertical parts 11. There is a round hole 12 matching the positioning tie rod in the center of the vertical part 11. The motor positioning tie rod 15 is connected to the vertical part in a hinged form; the two vertical parts 11 are vertically symmetric about the transverse center line 10 of the bogie frame. One end of the motor positioning tie rod 15 is hinged to the motor positioning tie rod seat 4, and the other end is hinged to the permanent magnet direct drive motor.

[0009] As a preferred embodiment, the side beam 1 is a straight beam. An unsprung mass spring damper mounting seat 6 is arranged on the side beam 1. The unsprung mass spring damper mounting seat 6 has a structure with hexahedrons at both ends and a cylinder in the middle and is bolted to the side beam 1.

[0010] As a preferred embodiment, one end of the damper is installed on the unsprung mass spring damper mounting seat 6 of the side beam through bolts, and the other end is installed on the axle box of the permanent magnet direct drive motor.

[0011] As a preferred embodiment, a suspension beam mounting seat 13 is welded to the lower part of the bolster 2 for installing and fixing the suspension beam.

[0012] In summary, compared with the prior art, the articulated bogie frame of the suspended monorail vehicle driven by a permanent magnet motor of the present invention has the following advantages: The present invention meets the installation requirements of future direct drive motors. Not only is the weight of the bogie frame structure significantly reduced and the size greatly reduced, but also a large number of traditional bogie components are greatly reduced, the moment of inertia is reduced, and the use requirements of the direct drive motor bogie are met. Description of the Drawings

[0013] Figure 1 is an axonometric view of the articulated bogie frame of the present invention.

[0014] Figure 2 is a front view of the articulated bogie frame of the present invention.

[0015] Figure 3 is a top view of the articulated bogie frame of the present invention.

[0016] Figure 4 is a left view of the articulated bogie frame of the present invention.

[0017] Figure 5Schematic diagram of the vertical part and round hole of the hinge pin type bogie frame of the present invention.

[0018] Figure 6 Schematic diagram of the axle box positioning tie rod of the present invention.

[0019] Figure 7 Schematic diagram of the motor positioning tie rod of the present invention.

[0020] Figure 8 Schematic diagram of the mounting seat of the primary spring damper of the present invention.

[0021] Wherein 1 is the side beam, 2 is the bolster, 3 is the axle box positioning tie rod seat, 4 is the motor positioning tie rod seat, 5 is the hinge mounting seat, 6 is the mounting seat of the primary spring damper, 7 is the hinge pin, 8 is the car body frame, 9 is the longitudinal center axis of the bogie frame, 10 is the transverse center line of the bogie frame, 11 is the vertical part, 12 is the round hole, 13 is the suspension beam mounting seat, 14 is the axle box positioning tie rod, and 15 is the motor positioning tie rod. Specific embodiments

[0022] The following specific examples illustrate the embodiments of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0023] A hinge pin type bogie frame of a suspended monorail vehicle driven by a permanent magnet motor, comprising a bolster 2 in the middle and two side beams 1 perpendicular to the bolster 2 hinged above the bolster 2. The side beams 1 have a rotational freedom degree relative to the bolster 2. There are hinge shaft holes in the middle of the side beams 1. Hinge mounting seats 5 are respectively arranged on both sides of the bolster. Hinge pins 7 are arranged in the hinge mounting seats 5. The hinge pins 7 are rotationally connected to the hinge shaft holes, and the axis of the hinge pin is consistent with the direction of the transverse center line 10 of the bogie frame;

[0024] At the lower end of the bolster 2, there is also an axle box positioning tie rod seat 3 connected to the permanent magnet direct drive motor. The axle box positioning tie rod seats 3 are symmetrically arranged on the left and right sides of the longitudinal central axis 9 of the bogie frame. One end of the axle box positioning tie rod 14 is installed on the axle box positioning tie rod seat 3, and the other end is installed on the permanent magnet direct drive motor. Two groups of axle box positioning tie rod seats 3 are connected to the axle box through the tensioned or compressed axle box positioning tie rod 14. In the middle of the upper surface of the bolster 2, there is a motor positioning tie rod seat 4. The motor positioning tie rod seat 4 is connected to the outer shell of the permanent magnet direct drive motor through a tensioned or compressed motor positioning tie rod. Each motor positioning tie rod seat 4 is provided with two vertical parts 11. In the center of the vertical part 11, there is a round hole 12 that cooperates with the motor positioning tie rod. The motor positioning tie rod 15 is connected to the vertical part in a hinged form. The two vertical parts 11 are vertically symmetric about the transverse center line 10 of the bogie frame. One end of the motor positioning tie rod 15 is hinged to the motor positioning tie rod seat 4, and the other end is hinged to the permanent magnet direct drive motor. It is used for the positioning of the permanent magnet direct drive motor and the transmission of part of the force.

[0025] The side beam 1 is a straight beam. On the side beam 1, there is a primary suspension spring damper mounting seat 6. The primary suspension spring damper mounting seat 6 has a structure with hexahedrons at both ends and a cylinder in the middle and is bolted to the side beam 1.

[0026] One end of the damper is installed on the primary suspension spring damper mounting seat 6 of the side beam through bolts, and the other end is installed on the axle box of the permanent magnet direct drive motor. It absorbs the impact vibration caused by road excitation or other reasons during the movement of the bogie.

[0027] A suspension beam mounting seat 13 is welded to the lower part of the bolster 2 for installing and fixing the suspension beam.

[0028] The present invention conforms to the development concept and installation requirements of the integration of the direct drive motor and the axle box, changes the bogie structure of the traditional suspended monorail vehicle, changes the original force transmission form of the bogie. Compared with the original large motor - gearbox mechanism, it simplifies the bogie structure, shortens the bogie size, reduces the bogie weight, eliminates the torsion of the bogie frame, thereby improving the transmission conditions, increasing the transmission efficiency, reducing the moment of inertia, and reducing the maintenance cost. At the same time, due to the flexible variability of the bogie frame size, it can meet the needs in most cases. At the same time, due to the particularity of its axle box tie rod, it improves the curve passing ability of the bogie.

[0029] The above embodiments are only illustrative of the principles and effects of the present invention and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A suspension monorail vehicle hinge pin type bogie frame driven by a permanent magnet motor, characterized in that: It includes a bolster (2) in the middle, and two side beams (1) perpendicular to the bolster (2) and hinged above the bolster (2). The side beams (1) have a rotational degree of freedom relative to the bolster (2). There are hinge shaft holes in the middle of the side beams (1), and hinge mounting seats (5) are respectively arranged on both sides of the bolster. A hinge pin (7) is provided in the hinge mounting seat (5), and the hinge pin (7) is rotationally connected to the hinge shaft hole. The axis of the hinge pin is in the same direction as the lateral center line (10) of the bogie frame. At the lower end of the bolster (2), there is also an axle box positioning tie rod seat (3) connected to a permanent magnet direct drive motor. The axle box positioning tie rod seats (3) are symmetrically arranged on the left and right of the longitudinal central axis (9) of the bogie frame. One end of the axle box positioning tie rod (14) is installed on the axle box positioning tie rod seat (3), and the other end is installed on the permanent magnet direct drive motor. Two groups of axle box positioning tie rod seats (3) are connected to the axle box through the tensioned or compressed axle box positioning tie rods (14). In the middle of the upper surface of the bolster (2), there is a motor positioning tie rod seat (4). The motor positioning tie rod seat (4) is connected to the outer shell of the permanent magnet direct drive motor through a tensioned or compressed motor positioning tie rod. There are two vertical parts (11) on each motor positioning tie rod seat (4). A round hole (12) matching the motor positioning tie rod is provided at the center of the vertical part (11). The motor positioning tie rod (15) is connected to the vertical part in a hinged form. The two vertical parts (11) are symmetrically arranged up and down about the lateral center line (10) of the bogie frame. One end of the motor positioning tie rod (15) is hinged to the motor positioning tie rod seat (4), and the other end is hinged to the permanent magnet direct drive motor. The side beam (1) is a straight beam. An unsprung mass spring damper mounting seat (6) is provided on the side beam (1). The unsprung mass spring damper mounting seat (6) has a structure with hexahedrons at both ends and a cylinder in the middle and is bolted to the side beam (1). One end of the damper is installed on the unsprung mass spring damper mounting seat (6) of the side beam through bolts in the vertical direction, and the other end is installed on the axle box of the permanent magnet direct drive motor.

2. The hinge pin type bogie frame of a suspended monorail vehicle driven by a permanent magnet motor according to claim 1, characterized in that: A suspension beam mounting seat (13) is welded to the lower part of the bolster (2) for installing and fixing the suspension beam.

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