Trolley bus walking system and trolley bus

Abstract

The embodiment of the invention provides a trolley bus walking system and a trolley bus, and the walking system comprises two wheels; a fork arm group; one fork arm group is connected with one wheel, and a space capable of accommodating a trolley bus frame is reserved between the two fork arm groups; the fork arm group is connected with the frame; and the buffer device is arranged between the top end of the fork arm group and the frame. According to the trolley bus walking system and the trolley bus provided by the embodiment of the invention, the height of the compartment floor can be reduced.

Description

Technical Field

[0001] The present application relates to the technology of trolleybuses, and particularly to a running system and a trolleybus of a trolleybus. Background Art

[0002] With the annual growth of the automobile ownership in major cities, the phenomenon of traffic congestion has become increasingly serious. Therefore, taking public transportation has become the preferred travel mode advocated by people. Public transportation includes subways, light rails, buses, trolleybuses, etc. Among them, trolleybuses have been put into use in many cities due to their environmental protection, large passenger capacity, relatively easy construction of infrastructure, and low construction cost.

[0003] A trolleybus mainly includes a carriage and a running system. The running system is used to realize the functions of running and steering. The running system is usually arranged under the carriage. Due to the complex structure and relatively high height of the traditional running system, the height of the carriage floor is raised, resulting in a relatively high center of gravity of the carriage and poor stability. Moreover, a trolleybus includes at least two carriages. During the running of the trolleybus on urban roads, there are many curves and the turning radius is relatively small. There are problems such as poor stability and large vibration during the turning process. Summary of the Invention

[0004] In order to solve one of the above technical defects, a running system and a trolleybus of a trolleybus are provided in the embodiments of the present application.

[0005] According to the first aspect of the embodiments of the present application, a running system of a trolleybus is provided, including:

[0006] Two wheels;

[0007] A fork arm group; one fork arm group is connected to one wheel, and a space for accommodating the frame of the trolleybus is left between the two fork arm groups; the fork arm group is connected to the frame;

[0008] A buffer device, arranged between the top end of the fork arm group and the frame.

[0009] According to the second aspect of the embodiments of the present application, a trolleybus is provided, which is the running system of the trolleybus as described above:

[0010] In the technical solution provided by the embodiments of the present application, the running system is provided with two wheels, each wheel is connected to a fork arm group, and a space for accommodating the frame of the trolleybus is left between the two fork arm groups; the fork arm group is connected to the frame, so that the bottom end of the frame can be further lowered between the wheels of the running system, thereby reducing the height of the carriage floor, lowering the center of gravity of the carriage, and improving stability; and a buffer device is arranged between the top end of the fork arm group and the frame, which can buffer the vibration between the frame and the running system to slow down the vibration of the carriage, thereby improving the riding comfort. Brief Description of the Drawings

[0011] The drawings described herein are provided to further understand the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0012] Figure 1 is a schematic structural view of the trolleybus provided by the embodiment of the present application;

[0013] Figure 2 is a schematic structural view of the connection between the trolleybus frame and the windshield provided by the embodiment of the present application;

[0014] Figure 3 is a schematic structural view of the trolleybus frame provided by the embodiment of the present application;

[0015] Figure 4 is a schematic structural view of the running system of the trolleybus provided by the embodiment of the present application;

[0016] Figure 5 is a schematic view of a part of the running system of the trolleybus provided by the embodiment of the present application;

[0017] Figure 6 is a front view of a part of the running system of the trolleybus provided by the embodiment of the present application;

[0018] Figure 7 is a left view of a part of the running system of the trolleybus provided by the embodiment of the present application;

[0019] Figure 8 is a bottom view of the connection between a part of the running system of the trolleybus and the frame provided by the embodiment of the present application;

[0020] Figure 9 is a schematic structural view of the upper frame body of the trolleybus frame provided by the embodiment of the present application;

[0021] Figure 10 is a schematic structural view of the lower frame body of the trolleybus frame provided by the embodiment of the present application;

[0022] Figure 11 is Figure 9 an enlarged view of area A in;

[0023] Figure 12 is a front view of the trolleybus frame provided by the embodiment of the present application;

[0024] Figure 13 is a side view of the trolleybus frame provided by the embodiment of the present application;

[0025] Figure 14The bottom view of the trolleybus frame provided by the embodiment of the present application;

[0026] Figure 15 The top view of the trolleybus frame provided by the embodiment of the present application;

[0027] Figure 16 The structural schematic diagram of the upper hinge device on the trolleybus frame provided by the embodiment of the present application;

[0028] Figure 17 The structural schematic diagram of the lower hinge device on the trolleybus frame provided by the embodiment of the present application.

[0029] Reference numerals:

[0030] 100 - carriage; 200 - frame; 300 - running system;

[0031] 1 - upper frame body; 11 - outer frame; 111 - top plate; 112 - side plates; 113 - middle plate; 114 - bottom plate; 12 - inner frame; 13 - bending member; 14 - side beam; 15 - C - shaped groove; 16 - suspension interface; 17 - first interface;

[0032] 2 - lower frame body; 21 - lower frame main body; 22 - vertical plate; 23 - first lower hinge hole; 24 - second lower hinge hole; 25 - second interface; 26 - third interface; 27 - vertical shock absorber interface;

[0033] 3 - upper hinge device; 31 - upper hinge main body; 311 - upper hinge frame; 312 - upper hinge beam; 313 - upper hinge member; 32 - upper hinge disc; 321 - triangular frame body; 33 - upper hinge seat; 34 - upper hinge rod; 35 - vehicle body connecting member;

[0034] 4 - lower hinge device; 41 - lower hinge disc; 42 - lower hinge rod;

[0035] 5 - outer windshield;

[0036] 6 - inner windshield;

[0037] 71 - wheel; 72 - buffer device; 73 - upper fork arm; 731 - upper frame connection part; 74 - lower fork arm; 741 - lower frame connection part; 75 - pin shaft; 761 - steering motor; 762 - steering push rod; 763 - steering arm; 77 - vertical shock absorber; 78 - anti - roll torsion bar. Detailed implementation manners

[0038] In order to make the technical solutions and advantages in the embodiments of the present application clearer and more understandable, the exemplary embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than an exhaustive list of all embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0039] This embodiment provides a trolleybus running system, which is arranged under the frame at the end of the carriage. Figure 1 Exemplarily, a trolleybus is shown, which includes three carriages 100. The carriage 100 at the end is provided with a driver's cab. The two carriages 100 are connected by a frame 200, and a running system 300 is provided at the bottom of the frame 200.

[0040] As Figure 2 and Figure 3 shown, the running system 300 is arranged under the frame 200, and multiple components in the running system 300 are all connected to the frame 200.

[0041] As Figures 4 to 7 shown, the running system provided in this embodiment includes: two wheels 71, a fork arm group, and a buffer device 72. Among them, the wheels 71 are rubber wheels and can run on the road surface.

[0042] The number of fork arm groups is two. One fork arm group is connected to one wheel 71, and a space for accommodating the frame 200 is left between the two fork arm groups, so that the two frames 200 can extend downward to the area between the two wheels, realizing the reduction of the carriage height. The fork arm group is correspondingly connected to the frame 200.

[0043] The buffer device 72 is arranged between the top of the fork arm group and the frame 200, and is used to buffer the vertical force between the frame 200 and the running system, thereby reducing the vibration of the frame and the vehicle body and improving the riding comfort.

[0044] In the technical solution provided in this embodiment, the running system is provided with two wheels, each wheel is connected to a fork arm group, and a space for accommodating the trolleybus frame is left between the two fork arm groups; the fork arm group is connected to the frame, so that the bottom end of the frame can be further lowered to the area between the wheels of the running system, thereby reducing the height of the carriage floor, lowering the center of gravity of the carriage, and improving the stability; and a buffer device is arranged between the top of the fork arm group and the frame, which can buffer the vibration between the frame and the running system to slow down the vibration of the carriage, thereby improving the riding comfort.

[0045] Based on the above technical solution, this embodiment provides an implementation manner of a fork arm group, which includes an upper fork arm 73, a lower fork arm 74, and a pin shaft 75. Among them, the lower fork arm 74 is located below the upper fork arm 73, and the lower fork arm 74 is connected to the upper fork arm 73 through a vertical pin shaft 75. The buffer device 72 is connected to the top of the upper fork arm 73, and the upper fork arm 73 is also connected to the frame 200. The lower fork arm 74 is connected to the wheel 71 on the one hand and to the frame 200 on the other hand.

[0046] A specific implementation manner: The upper fork arm 73 includes an upper fork arm main body, and the buffer device 72 is connected to the top of the upper fork arm main body. An upper frame connection portion 731 for connecting to the frame extends in the direction towards another fork arm group in the upper fork arm main body. An installation hole is provided in the upper frame connection portion 731, and an elastic node is arranged in the installation hole to buffer the rigid force between the frame 200 and the upper fork arm 73.

[0047] An implementation manner is: The lower fork arm 74 includes a lower fork arm main body, and the lower fork arm main body is a triangular frame. One of its apex angles is connected to the pin shaft 75 and the wheel 71, and the other two apex angles extend in the direction towards another fork arm group to form a lower frame connection portion 741 for connecting to the frame 200. An installation hole is provided in the lower frame connection portion 741, and an elastic node is arranged in the installation hole to buffer the rigid force between the frame 200 and the lower fork arm 74.

[0048] In the above solution, the upper fork arm 73 and the lower fork arm 74 are respectively connected to the frame 200, so that there is no rigid connection between the wheels 71 on the left and right sides, which can better adapt to complex road surfaces. And the upper fork arm 73 and the lower fork arm 74 can be vertically suspended during the operation of the trolleybus to keep the wheels aligned.

[0049] As Figure 8 shown, the lower fork arm 74 extends into the bottom of the frame 200 and is connected to the frame 200 through two lower frame connection portions 741.

[0050] The upper fork arm 73, the lower fork arm 74, and the pin shaft 75 can be made of steel materials, and the three components can be welded together or connected together by other means.

[0051] An implementation manner is: Two buffer devices 72 are provided for one fork arm group, and the two buffer devices 72 are arranged along the vehicle length direction. It is equivalent to using two buffer devices 72 to support and buffer on one side of the trolleybus frame, which can improve the buffering effect and further reduce the vibration of the frame and the carriage. The buffer device 72 is an air spring, the top of the air spring is connected to the frame 200, and the bottom is connected to the upper fork arm 73.

[0052] Further, a steering device is adopted, which is respectively connected to the wheel rims of the two wheels and is used to push the wheels to deflect to achieve curve driving. The steering device includes a steering motor 761, a steering push rod 762, and a steering arm 763. The steering push rod 762 is connected between the steering arm 763 and the steering motor 761, and the steering arm 763 is connected to the wheel rim of the wheel 71. The steering motor 761 can be fixed at the bottom of the frame 200 or connected between the two lower fork arms 74.

[0053] The steering motor 761 drives the two steering push rods 762 to move left or right, and pushes the wheel 71 to deflect through the steering arm 763.

[0054] In the above solution, the lower fork arm 74, the steering push rod 762, and the steering arm 763 form a parallelogram structure, which can maintain the correct deflection angle of the wheels during the running of the tram.

[0055] In addition, a braking device is also provided on the wheels, which is used to apply a braking force to the wheel rims.

[0056] Further, a vertical shock absorber 77 is adopted, which is connected between the lower fork arm 74 and the frame 200 and is used to further buffer the vertical force between the frame 200 and the running system.

[0057] Further, an anti-roll torsion bar 78 is also adopted, which is connected between the lower fork arms 74 of the two fork arm groups and is connected to the frame 200. Specifically, the anti-roll torsion bar 78 extends along the vehicle width direction, and its two ends are respectively connected to the lower fork arms 74 on both sides. The middle of the anti-roll torsion bar 78 is also connected to the bottom of the frame 200, which transmits the force on one side of the vehicle to the other side to help reduce the body roll, enables the vehicle to adapt to the undulating road surface, and thus improves the stability and curve passing performance of the vehicle.

[0058] Adopting the above solution, compared with the traditional railway vehicle bogie, the solution provided in this embodiment can reduce the number of axles, simplify the structure, reduce the weight, and also reduce the manufacturing and maintenance costs. Adopting the solution of connecting the upper fork arm and the lower fork arm to the frame can better adapt to passing through small-radius curves, thus improving the curve passing performance of the trolleybus.

[0059] Based on the above technical solutions, this embodiment also provides a trolleybus, including the running system provided in any of the above contents.

[0060] Based on the above technical solutions, this embodiment also provides an implementation manner of the frame 200:

[0061] Such as Figure 2 and Figure 3The shown frame includes: an upper frame body 1, a lower frame body 2, an upper hinge device 3 and a lower hinge device 4. Among them, the upper frame body 1 and the lower frame body 2 are independently manufactured and connected together. The upper hinge device 3 is connected between the top of the upper frame body 1 and the vehicle body, and the lower hinge device 4 is connected between the bottom of the upper frame body 1 and the vehicle body.

[0062] The upper frame body 1 includes an outer frame 11 and an inner frame 12. The inner frame 12 is connected to the inner side of the outer frame 11. The inner frame 12 is used to be connected to the inner windshield 6, and the outer frame 11 is used to be connected to the outer windshield 5. The outer frame 11 is formed by connecting profiles extending along the vehicle length, such as light structural profiles like aluminum profiles, which can reduce the weight of the frame itself and achieve lightweight design.

[0063] In the above technical solution, the top of the upper frame body is connected to the vehicle body through the upper hinge device, and the bottom of the lower frame body is connected to the vehicle body through the lower hinge device. The upper frame body and the lower frame body can be independently manufactured and then connected together. The upper frame body includes an outer frame and an inner frame. The inner frame is connected to the inner side of the outer frame. The inner frame is used to be connected to the inner windshield, and the outer frame is used to be connected to the outer windshield, realizing the assembly of the inner and outer windshields. Moreover, the outer frame is formed by connecting profiles extending along the vehicle length, which can reduce the weight of the frame itself and achieve lightweight design, achieving the effect of improving the traction efficiency.

[0064] Based on the above technical solution, this embodiment provides a specific implementation manner of the frame:

[0065] As Figures 9 to 15 shown, the outer frame 11 includes: a top plate 111, side plates 112, middle plates 113, and a bottom plate 114. Among them, the top plate 111 extends along the vehicle width direction, and the top plate 111 is a profile structure, and the profile itself extends along the vehicle length direction. The two side plates 112 extend along the vehicle height direction, and the top ends of the two side plates 112 are respectively connected to both ends of the top plate 111. The side plates 112 are also profile structures, and the profiles themselves extend along the vehicle length direction.

[0066] The middle plates 113 extend along the vehicle width direction and are located inside the side plates 112. One ends of the two middle plates 113 are respectively correspondingly connected to the bottom ends of the side plates 112. The bottom plate 114 extends along the vehicle height direction, and the top end of the bottom plate 114 is connected to the end of the middle plate 113 far from the side plate 112. Each middle plate 113 is connected to a bottom plate 114, and the distance between the two bottom plates 114 is less than the distance between the two side plates 112.

[0067] The bottom end of the inner frame 12 is connected to the top end of the bottom plate 114. The inner frame 12 is also connected to the top plate 111 and the side plates 112 respectively through bending members 13. The width of the inner frame 12 is less than the width of the outer frame 11. One end of the bending member 13 is connected to the outer frame 11, and the other end extends outward to be connected to the inner frame 12.

[0068] The above-mentioned top plate 111, side plates 112, middle plate 113 and bottom plate 114 can all be aluminum profiles, and the bending part 13 is a round aluminum tube, which has a relatively light self-weight.

[0069] The outer windshield 5 is connected to the outer frame 11. The lower end of the outer windshield 5 terminates at the position of the middle plate 113, leaving an installation space for the running system below the middle plate 113. The inner windshield 6 is installed on the inner frame 12 and extends from the top end to the bottom end of the inner frame 12.

[0070] Furthermore, a side beam 14 is connected to the cross-sections of the profiles of the top plate 111, side plates 112, middle plate 113 and bottom plate 114 to seal the cross-sections of the profiles. The side beam 14 can be a rectangular tubular beam, specifically an aluminum alloy beam.

[0071] The top surface of the top plate 111 is provided with an interface for connecting to the upper hinge device 3. One implementation is that the interface is a C-shaped groove 15. The middle plate 113 is provided with a suspension interface 16 for connecting to the suspension device in the trolleybus running system. In this embodiment, the suspension interface 16 is a positioning hole for connecting to the top of the buffer device 72 in the running system.

[0072] The bottom plate 114 is provided with a first interface 17 for connecting to the running system frame. Specifically, the number of the first interfaces 17 is two, which are respectively connected to the two upper frame connection parts 731 of the upper fork arm 73 in the running system.

[0073] The lower frame body 2 can be connected by aluminum alloy profiles or formed by aluminum alloy casting. The lower frame body 2 is welded to the upper frame body 1. The lower frame body 2 specifically includes a lower frame main body 21 and vertical plates 22, and the vertical plates 22 are arranged on both sides of the lower frame main body 21. The front side and the rear side of the lower frame main body 21 are provided with interfaces for connecting to the lower hinge device 4, specifically a plurality of first lower hinge holes 23. The left and right sides of the lower frame main body 21 are provided with interfaces for connecting to the lower hinge device 4, specifically a plurality of second lower hinge holes 24.

[0074] Furthermore, the bottom surface of the lower frame main body 21 is provided with a second interface 25 for connecting to the frame in the trolleybus running system and a third interface 26 for connecting to the anti-roll torsion bar in the running system. Specifically, as Figure 8 and Figure 14 shown, the second interface 25 is connected to the lower frame connection part 741 of the lower fork arm 74 in the running system, and the third interface 26 is connected to the anti-roll torsion bar 78.

[0075] Furthermore, the side surface of the lower frame main body 21 is also provided with a vertical shock absorber interface 27 for connecting to the vertical shock absorber in the running system. Specifically, the vertical shock absorber interface 27 is connected to the top end of the vertical shock absorber 77 in the running system.

[0076] Based on the above technical solution, this embodiment further provides an implementation manner of the upper hinge device 3, as Figure 16 shown. The upper hinge device 3 includes: an upper hinge main body 31, an upper hinge disc 32, an upper hinge seat 33, and an upper hinge rod 34.

[0077] Among them, the upper hinge main body 31 is connected to the top end of the upper frame body 1, specifically connected to the top plate 111, and the upper hinge main body 31 is relatively fixed to the upper frame body 1. One implementation manner is: the upper hinge main body 31 includes: an upper hinge frame 311, an upper hinge beam 312, and an upper hinge member 313. Among them, the upper hinge frame 311 is a rectangular frame, and at least two upper hinge beams 312 are arranged side by side in the upper hinge frame 311. The upper hinge member 313 is welded to the opposite two frame sides of the upper hinge frame 311 and the bottom of the upper hinge beam 312. Bolt holes are provided on the upper hinge member 313 and are connected to the slider in the C-shaped groove 15 at the bottom of the upper frame body 1, so as to connect the upper hinge main body 31 to the upper frame body 1.

[0078] One end of the upper hinge disc 32 is connected to one side of the upper hinge main body 31, and the other end is connected to a vehicle body. The upper hinge disc 32 includes two relatively rotatable triangular frame bodies 321, and the two triangular frame bodies 321 are hinged at a vertex. One of the triangular frame bodies 321 is connected to the upper hinge main body 31 by bolts, and the other triangular frame body 321 is connected to the top of a vehicle body. The relative rotation of the two triangular frame bodies 321 in the upper hinge disc 32 can enable the trolleybus to pass through the curve smoothly.

[0079] The upper hinge seat 33 is of a triangular structure and is connected to the side of the upper hinge main body 31 that is away from the upper hinge disc 32. One end of the upper hinge rod 34 is hinged to the upper hinge seat 33, and the other end is hinged to the vehicle body connecting member 35 and is connected to another vehicle body through the vehicle body connecting member 35. The upper hinge rod 34 can rotate relative to the hinge seat 33 and can also rotate relative to the vehicle body connecting member 35, which can meet the requirements for the trolleybus to pass through the curve.

[0080] Furthermore, the upper hinge rod 34 is a damping rod, which can further slow down the relative movement between the frame and the adjacent vehicle body, thereby improving the curve passing performance and driving safety.

[0081] Based on the above technical solution, this embodiment further provides an implementation manner of the lower hinge device 4: as Figure 17 shown. The lower hinge device 4 includes: a lower hinge disc 41 and a lower hinge rod 42.

[0082] One end of the lower hinge plate 41 is connected to the lower frame body 2, and the other end is used to connect to the vehicle body. The implementation of the lower hinge plate 41 is similar to that of the upper hinge plate 32 described above, and it is formed by hinging two triangular frame bodies, and the two triangular frame bodies can rotate relative to each other horizontally. One of the triangular frame bodies is connected to the lower frame body 2, specifically fixed by bolts passing through the first lower hinge hole 23 on the lower frame body 2. The other triangular frame body is connected to the end of the vehicle body.

[0083] Both sides of the lower frame body 2 are connected to the vehicle body through the lower hinge plates 41, so that relative rotation can occur between the frame and two adjacent vehicle bodies.

[0084] One end of the lower hinge rod 42 is connected to the lower frame body 2, specifically connected to the second lower hinge hole 24 on the lower frame body 2 by bolts. The other end of the lower hinge rod 42 is connected to the vehicle body. The number of the lower hinge rods 42 is four, and they are respectively connected to the four top corners of the lower frame body 2. It is equivalent to that each side of the bottom of the frame is connected to the vehicle body through the lower hinge device plate 41 and two lower hinge rods 42.

[0085] The lower hinge rod 42 can specifically have a damping feeling, and can also limit the relative displacement between the vehicle body and the frame, so as to improve the curve passing performance of the trolleybus and improve the driving stability and safety.

[0086] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0087] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0088] In this application, unless otherwise clearly stipulated and defined, terms such as "install", "connect", "link", "fix", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0089] Although the preferred embodiments of this application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of this application.

[0090] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

1. A trolleybus running system, characterized in that: include: Two wheels; Fork arm assembly; One fork arm set is connected to one wheel, and a space is left between the two fork arm sets to accommodate the trolleybus frame; The wishbone assembly is connected to the frame; The buffer device is arranged between the top end of the fork arm assembly and the frame.

2. The trolleybus running system according to claim 1, characterized in that: Also includes: The steering device is connected to the two wheels respectively.

3. The trolleybus running system according to claim 2, characterized in that: The fork arm set includes: an upper wishbone, connected to the shock absorber and the frame; The lower wishbone, located below the upper wishbone, connects to the wheel and frame; The pin is connected between the upper fork arm and the lower fork arm.

4. The trolleybus running system according to claim 3, characterized in that: The upper fork arm comprises an upper fork arm body, and the buffer device is connected to the upper fork arm body; an upper frame connecting portion for connecting with the frame is formed in the upper fork arm body extending toward the other fork arm group.

5. The trolleybus running system according to claim 1, characterized in that: The lower fork arm comprises a lower fork arm body, which is a triangular frame body, one vertex of which is connected with the pin shaft and the wheel, and the other two vertex angles are provided with lower frame connecting parts for connecting with the frame.

6. The trolleybus running system according to claim 1, characterized in that: One fork arm assembly is provided with two buffer devices, and the two buffer devices are arranged along the vehicle length direction.

7. The trolleybus running system according to claim 6, characterized in that: The buffer device is an air spring; the top of the air spring is used to be connected to the frame.

8. The trolleybus running system according to claim 3, characterized in that: Also includes: Vertical shock absorber, connected between the lower wishbone and the frame.

9. The trolleybus running system according to claim 3, characterized in that: Also includes: The anti-roll torsion bar is connected between the lower wishbones of the two wishbone groups and is connected to the frame.

10. A trolleybus, characterized in that: include: A trolleybus running system as described in any one of claims 1 to 9.

Images