A trolley steering mechanism

Abstract

The invention discloses a trolley steering mechanism, comprising a front drive axle, a frame, a rear axle and a track. The front drive axle and the rear axle are located at two ends of the lower surface of the frame in the forward direction. The two steering knuckles of the front drive axle are connected by a first long steering rod, and the two steering knuckles of the rear axle are rotatably connected by a second long steering rod. A guide wheel group is installed at a position on the lower surface of the frame corresponding to the front drive axle. The guide wheel group is adapted to the track. The guide wheel group is rotatably connected to one end of the first long steering rod, and the guide wheel group is rotatably connected to one end of the second short steering rod through a rear steering connecting rod assembly. The other end of the second short steering rod is fixedly connected to one end of the second long steering rod. The trolley steering mechanism realizes synchronous steering of the front drive axle and the rear axle, lacks the rear guide wheel group, has a simple structure and reduces costs.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicles, in particular to a trolley steering mechanism. Background Art

[0002] In the prior art, the front and rear axles of the steering mechanism of the track car of the amusement facility are equipped with independent guide wheel groups. When turning a curve, the guide wheel group deflects as the curvature of the curve changes. The guide wheel group drives the steering knuckle of the axle to turn as the curve deflects to achieve the steering of the wheels. Two sets of guide wheel groups are required, which has a complex structure and high cost. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a trolley steering mechanism to achieve synchronous steering of the front drive axle and the rear axle, eliminate the rear guide wheel group, simplify the structure, reduce the cost, and effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a trolley steering mechanism, comprising a front drive axle, a frame, a rear axle and a track, the front drive axle and the rear axle are located at the two ends of the lower surface of the frame in the forward direction, the two steering knuckles of the front drive axle are connected by a first long steering rod, and the two steering knuckles of the rear axle are rotatably connected by a second long steering rod, a guide wheel group is installed at a position on the lower surface of the frame corresponding to the front drive axle, the guide wheel group is adapted to the track, the guide wheel group is rotatably connected to one end of the first long steering rod, the guide wheel group is rotatably connected to one end of the second short steering rod through a rear steering link assembly, and the other end of the second short steering rod is fixedly connected to one end of the second long steering rod.

[0005] As a preferred technical solution of the present invention, the rear steering link assembly includes a first rotating rod, a rotating rod and a second rotating rod, one end of the first rotating rod is rotatably connected to the guide wheel group, the other end of the first rotating rod is rotatably connected to one end of the rotating rod, the other end of the rotating rod is rotatably connected to one end of the second rotating rod, the other end of the second rotating rod is rotatably connected to one end of the second short steering rod, and the middle part of the rotating rod is rotatably connected to the frame.

[0006] As a preferred technical solution of the present invention, one end of the second rotating rod away from the rotating rod and one end of the second short steering rod away from the rear axle steering knuckle are connected by a triangular plate, the triangular plate includes a first end, a second end and a third end, the first end is rotatably connected to the lower surface of the frame, the second end is rotatably connected to one end of the second rotating rod away from the rotating rod, and the third end is rotatably connected to one end of the second short steering rod away from the rear axle steering knuckle.

[0007] As a preferred technical solution of the present invention, the first end of the triangle plate coincides with the track, and the second end and the third end of the triangle plate are located on the same side of the track.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] The trolley steering mechanism of the example of the present invention is only provided with a set of guide wheel groups, which deflect as the curvature of the track curve changes, driving the wheels on the front drive axle to rotate, and at the same time, the guide wheel group follows the front drive axle to steer through the rear steering link assembly. The present invention realizes synchronous steering of the front drive axle and the rear axle, and eliminates the rear guide wheel group. The present invention has a simple structure and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the present invention.

[0011] In the figure: 1 front drive axle, 2 frame, 3 track, 4 first long steering rod, 5 first short steering rod, 6 rear axle, 7 second long steering rod, 8 second short steering rod, 9 rear steering link assembly, 91 first rotating rod, 92 rotating rod, 93 second rotating rod, 10 guide wheel group. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0013] Example 1: Please refer to Figure 1 The present invention discloses a trolley steering mechanism, comprising a front drive axle 1, a frame 2, a rear axle 6 and a track 3. The front drive axle 1 and the rear axle 6 are located at two ends of the lower surface of the frame 2 in the forward direction. The two steering knuckles of the front drive axle 1 are connected by a first long steering rod 4. The two steering knuckles of the rear axle 6 are rotatably connected by a second long steering rod 7. A guide wheel group 10 is installed at a position on the lower surface of the frame 2 corresponding to the front drive axle 1. The guide wheel group 10 is adapted to the track 3. The guide wheel group 10 is rotatably connected to one end of the first long steering rod 4. The guide wheel group 10 is rotatably connected to one end of the second short steering rod 8 through a rear steering link assembly 9. The other end of the second short steering rod 8 is fixedly connected to one end of the second long steering rod 7.

[0014] Furthermore, the rear steering link assembly 9 includes a first rotating rod 91, a rotating rod 92 and a second rotating rod 93. One end of the first rotating rod 91 is rotatably connected to the guide wheel group 10, the other end of the first rotating rod 91 is rotatably connected to one end of the rotating rod 92, the other end of the rotating rod 92 is rotatably connected to one end of the second rotating rod 93, the other end of the second rotating rod 93 is rotatably connected to one end of the second short steering rod 8, and the middle part of the rotating rod 92 is rotatably connected to the frame 2.

[0015] Only one set of guide wheel group 10 is provided, and the guide wheel group 10 deflects as the curvature of the track 3 changes, driving the wheels on the front drive axle 1 to rotate. At the same time, the guide wheel group 10 follows the front drive axle 1 to turn together through the rear steering link assembly 9. The present invention realizes synchronous steering of the front drive axle 1 and the rear axle 6, and eliminates the rear guide wheel group 10. The present invention has a simple structure and reduces costs.

[0016] Since the connection between the first short steering rod 5 and the guide wheel set 10 needs to move the front drive axle 1 and the rear axle 6 at the same time, the force is very large, and the present invention is not suitable for heavy vehicles that carry multiple people.

[0017] When using:

[0018] Wheels are installed at both ends of the front drive axle 1 and both ends of the second long steering rod 7. The guide wheel group 10 deflects with the curvature of the track 3. When the guide wheel group 10 deflects, the guide wheel group 10 drives the two wheels on the front drive axle 1 to steer through the first short steering rod 5 and the first long steering rod 4; when the guide wheel group 10 deflects, the guide wheel group 10 drives the second short steering rod 8 through the rear steering link assembly 9, and the second short steering rod 8 drives the wheels on the second long steering rod 7 to rotate through the second long steering rod 7.

[0019] The present invention is provided with only one set of guide wheel group 10, and the guide wheel group 10 deflects as the curvature of the track 3 changes, and drives the wheels on the front drive axle 1 to rotate. At the same time, the guide wheel group 10 follows the front drive axle 1 to turn together through the rear steering link assembly 9. The present invention realizes synchronous steering of the front drive axle 1 and the rear axle 6, and lacks the rear guide wheel group 10. The present invention has a simple structure and reduces costs.

[0020] Embodiment 2: This embodiment discloses a steering mechanism for a trolley, and its structure is roughly the same as that of Embodiment 1, except that this embodiment also includes a triangular plate, and an end of the second rotating rod 93 away from the rotating rod 92 and an end of the second short steering rod 8 away from the steering knuckle of the rear axle 6 are connected through the triangular plate, and the triangular plate includes a first end, a second end and a third end, the first end is rotatably connected to the lower surface of the frame 2, the second end is rotatably connected to an end of the second rotating rod 93 away from the rotating rod 92, and the third end is rotatably connected to an end of the second short steering rod 8 away from the steering knuckle of the rear axle 6.

[0021] The first end of the triangle plate coincides with the track 3 , and the second end and the third end of the triangle plate are located on the same side of the track 3 .

[0022] When in use: the triangular plate drives the second rotating rod 93 and the second short steering rod 8, and makes the second short steering rod 8 stable in transmission and not prone to deflection.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trolley steering mechanism, comprising a front drive axle (1), a frame (2), a rear axle (6) and a track (3), wherein the front drive axle (1) and the rear axle (6) are located at two ends of a lower surface of the frame (2) in a forward direction, and characterized in that: The two steering knuckles of the front drive axle (1) are connected via a first long steering rod (4), the two steering knuckles of the rear axle (6) are rotationally connected via a second long steering rod (7), a guide wheel assembly (10) is installed on the lower surface of the frame (2) at a position corresponding to the front drive axle (1), the guide wheel assembly (10) is adapted to the track (3), the guide wheel assembly (10) is rotationally connected to one end of the first long steering rod (4), the guide wheel assembly (10) is rotationally connected to one end of the second short steering rod (8) via a rear steering link assembly (9), and the other end of the second short steering rod (8) is fixedly connected to one end of the second long steering rod (7); The rear steering link assembly (9) comprises a first rotating rod (91), a rotating rod (92) and a second rotating rod (93); one end of the first rotating rod (91) is rotatably connected to the guide wheel assembly (10); the other end of the first rotating rod (91) is rotatably connected to one end of the rotating rod (92); the other end of the rotating rod (92) is rotatably connected to one end of the second rotating rod (93); the other end of the second rotating rod (93) is rotatably connected to one end of the second short steering rod (8); and the middle portion of the rotating rod (92) is rotatably connected to the vehicle frame (2); An end of the second rotating rod (93) away from the rotating rod (92) and an end of the second short steering rod (8) away from the steering knuckle of the rear axle (6) are connected via a triangular plate, the triangular plate comprising a first end, a second end and a third end, the first end being rotatably connected to the lower surface of the frame (2), the second end being rotatably connected to an end of the second rotating rod (93) away from the rotating rod (92), and the third end being rotatably connected to an end of the second short steering rod (8) away from the steering knuckle of the rear axle (6); The first end of the triangular plate overlaps with the track (3), and the second end and the third end of the triangular plate are located on the same side of the track (3); The guide wheel set (10) drives two wheels on the front drive axle (1) to steer via a first short steering rod (5) and a first long steering rod (4).

Images