A pre-loaded guided driving system

Abstract

The embodiment of the present application provides a pre-stressed guided driving system, including a trolley that travels within a track, the trolley including a frame and a drive wheel, the drive wheel being mounted at the bottom of the frame and in close contact with the bottom wall of the track; at least two guide wheel assemblies mounted on the side walls of the frame, the guide wheel assembly including a wheel frame, guide wheels being arranged on the wheel frame for transverse rotation, the guide wheels being in close contact with the side walls of the track and traveling along the side walls of the track, the guide wheel assembly being elastically connected to the side walls of the frame, first guide shafts being mounted on the wheel frame at the upper and lower ends of the guide wheels, a first elastic member being sleeved on the first guide shaft, a first through hole being provided on the side wall of the frame, the first guide shaft passing through the first through hole and being able to slide within the first through hole. The embodiment of the present application provides a pre-stressed guided driving system with an initial pre-stress, which can apply an inward pre-stress to the trolley, making the vehicle travel more smoothly and improving comfort, and is suitable for the field of rail transportation technology.

Description

Technical Field

[0001] The present application relates to a pre-pressed guided vehicle system, belonging to the field of rail transportation technology. Background Art

[0002] When the current rail trolley is in motion, it is easy for the trolley to move left and right in the width direction of the track, causing shaking and misalignment. This phenomenon is particularly obvious when the trolley is traveling at a track bend, causing the trolley to deflect within the track, creating a large friction resistance with the track, which can easily cause the traction chain to break, the track to deform, and the trolley to be pulled out of the track, causing safety hazards.

[0003] Furthermore, the existing method for adjusting the preload of the guide wheel assembly is to adjust the preload by adding or reducing gaskets, which cannot achieve automatic adjustment. Summary of the Invention

[0004] In order to solve one of the above technical deficiencies, an embodiment of the present application provides a pre-loaded guided vehicle system, comprising a traveling trolley traveling in a track, wherein the traveling trolley comprises a frame;

[0005] At least two guide wheel assemblies are respectively installed on the side walls of both sides of the frame, and the guide wheel assembly includes a wheel frame, and the wheel frame is provided with guide wheels for transverse rotation. The guide wheels are in close contact with the side walls of the track and move along the side walls of the track. The guide wheel assembly is elastically connected to the side walls of the frame.

[0006] Preferably, the wheel frame is provided with a first guide shaft at the upper and lower ends of the guide wheel respectively, the first guide shaft is sleeved with a first elastic member, a first through hole is provided on the side wall of the frame, the first guide shaft passes through the first through hole and can slide in the first through hole, and when the traveling trolley is installed on the track, the first elastic member is in a compressed state.

[0007] Preferably, the length of the first guide shaft (303) is greater than the sum of the axial length of the first elastic member (304) and the thickness of the side wall of the frame (201).

[0008] Preferably, the wheel frame is provided with a second guide shaft at the left and right ends of the guide wheel respectively, each of the second guide shafts is sleeved with a second elastic member, a second through hole is provided on the side wall of the frame, the second guide shaft passes through the first through hole and can slide in the first through hole.

[0009] Preferably, the axial length of the second elastic member is smaller than the axial length of the first elastic member, and the elastic coefficient of the second elastic member is greater than the elastic coefficient of the first elastic member.

[0010] Preferably, one end of the second guide shaft is connected to the wheel frame, and the other end of the second guide shaft is connected to a limit baffle after passing through the second through hole, and the distance between the limit baffle and the wheel frame is not less than the sum of the axial length of the first elastic member and the thickness of the side wall of the frame.

[0011] Preferably, two guide wheel assemblies respectively installed on the side walls of both sides of the frame are arranged corresponding to each other, forming a pair of guide wheel assemblies; and multiple pairs of guide wheel assemblies are evenly arranged on the side walls of the frame along the forward direction of the traveling trolley.

[0012] Preferably, the track is a suspended track, the bottom of the suspended track is provided with an opening along the length direction of the track, the bottom of the traveling trolley is connected to a suspension rod, and the suspension rod is connected to a carriage after passing through the opening.

[0013] Preferably, the track is a trough track with an open top, the top of the traveling trolley is connected to a carriage, and the carriage is connected across both sides of the track.

[0014] Preferably, a driving wheel (202) is provided at the bottom of the vehicle frame (201), and the driving wheel (202) runs in close contact with the bottom wall of the track (10).

[0015] The preloaded guided driving system of the present application adopts a guide wheel assembly provided on the side walls of the frame. When the trolley is installed on the track, the side walls of the track exert inward pressure on the guide wheel, causing the wheel frame to have an inward preloaded force and generate inward movement, compressing the first elastic member. At this time, the first elastic member has outward elastic potential energy. The first elastic members on both sides simultaneously push the frame, exerting an inward preload on the trolley to limit the range of movement of the trolley along the width direction of the track, making the vehicle travel more stable and improving the comfort.

[0016] When the trolley travels to a track curve, the track width becomes narrower, and the track sidewalls further exert inward pressure on the guide wheels. The wheel frame continues to move inward, further pushing the second elastic member inward, compressing the second elastic member, and providing greater pre-pressure for the trolley when turning, making the trolley more stable when turning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 A schematic structural diagram of a pre-loaded guided vehicle system provided in Example 1 of the present application;

[0019] Figure 2 This is a schematic diagram of the structure of the traveling trolley provided in Example 1 of the present application;

[0020] Figure 3 This is a schematic structural diagram of the guide wheel assembly provided in Example 1 of the present application;

[0021] Figure 4 A top view of the traveling trolley provided in Example 1 of the present application;

[0022] Figure 5 A schematic structural diagram of a pre-loaded guided vehicle system along a track cross section provided in Example 1 of the present application;

[0023] Figure 6 A schematic structural diagram of a pre-loaded guided vehicle system provided in Example 2 of the present application;

[0024] Figure 7 A schematic structural diagram of a pre-loaded guided vehicle system provided in Example 3 of the present application;

[0025] In the figure, 10 is a track, 101 is a suspended track, 102 is a grooved track, 20 is a traveling trolley, 201 is a frame, 202 is a driving wheel, 30 is a guide wheel assembly, 301 is a wheel frame, 302 is a guide wheel, 303 is a first guide shaft, 304 is a first elastic member, 305 is a second guide shaft, 306 is a second elastic member, 307 is a limit baffle, 40 is a suspension rod, and 50 is a carriage. DETAILED DESCRIPTION

[0026] In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0027] In the process of realizing this application, the inventors found that the current rail trolley is prone to move left and right in the width direction of the track during driving, causing shaking and dislocation. This phenomenon is particularly obvious when the trolley drives to a bend in the track, causing the rail trolley to deflect in the track and form a large friction resistance with the track, which can easily cause safety hazards such as traction chain breakage, track deformation, and pulling the rail trolley out of the track; and the existing method of adjusting the pre-pressure of the guide wheel assembly is to adjust the pre-pressure by adding or reducing gaskets, which cannot achieve automatic adjustment.

[0028] In response to the above problems, an embodiment of the present application provides a pre-loaded guided driving system with initial pre-load, which makes the vehicle run more smoothly and improves comfort.

[0029] Example 1

[0030] like Figure 1-5 As shown, a preloaded guided driving system includes:

[0031] The trolley 20 travels within the track 10. The trolley 20 includes a frame 201, a drive device, and a drive wheel 202. The drive wheel 202 is mounted on the bottom of the frame 201 and is in close contact with the bottom wall of the track 10. The drive wheel 202 is connected to the drive device disposed within the frame 201, and the drive device can drive the drive wheel 202 to rotate.

[0032] At least two guide wheel assemblies 30 are respectively installed on the side walls of the frame 201. The guide wheel assembly 30 includes a wheel frame 301, and a guide wheel 302 is arranged on the wheel frame 301 for horizontal rotation. The guide wheel 302 is in close contact with the side wall extending along the length direction of the track 10 and moves along the side wall of the track 10. The guide wheel assembly 30 is elastically connected to the side wall of the frame 201.

[0033] Furthermore, first guide shafts 303 are respectively installed on the wheel frame 301 at the upper and lower ends of the guide wheel 302. The two first guide shafts 303 are located in the same vertical horizontal plane and are symmetrical about the guide wheel 302, ensuring that the two first elastic members 304 are subjected to force synchronously. A first elastic member 304 is sleeved on the first guide shaft 303, and a first through hole is opened on the side wall of the frame 201 corresponding to the first guide shaft 303. The outer diameter of the first elastic member 304 is larger than the diameter of the first through hole. The first guide shaft 303 passes through the first through hole and can slide in the first through hole. One end of the first elastic member 304 is in contact with the wheel frame 301, and the other end of the first elastic member 304 is in contact with the side wall of the frame 201; when the traveling trolley 20 is installed on the track 10, the first elastic member 304 is in a compressed state; the length of the first guide shaft 303 is greater than the sum of the axial length of the first elastic member 304 and the thickness of the side wall of the frame 201.

[0034] When the trolley 20 has not yet been installed on the track 10, the first elastic member is in a relaxed state, and when one end of the first elastic member 304 just contacts the wheel frame 301 and the other end of the first elastic member 304 just contacts the side wall of the frame 201, the maximum distance between the wheel surfaces of the guide wheels 302 on both sides of the frame 201 is greater than the width of the track 10. When the trolley 20 is installed on the track 10, the two side walls of the track 10 respectively squeeze the guide wheels 302 on both sides, causing them to move toward the inside of the track 10, driving the wheel frame 302 1 moves inward, the first guide shaft 303 slides inward under the guidance of the first through hole, and the first elastic member 304 is compressed. At this time, the other ends of the first elastic members 304 on both sides exert an inward pressure on the side walls of the frame 201, limiting the movement range of the traveling trolley 20 along the width direction of the track 10, so that the traveling trolley 20 is always pressed near the center line of the track 10 during driving, preventing the traveling trolley 20 from moving left and right in the track 10 during (straight) driving, causing shaking and dislocation, and making the vehicle driving more stable.

[0035] Furthermore, second guide shafts 305 are respectively installed on the wheel frame 301 at the left and right ends of the guide wheel 302. The two second guide shafts 305 are located in the same horizontal plane and are symmetrical about the guide wheel 302, ensuring that the two second elastic members 306 are subjected to force synchronously. A second elastic member 306 is sleeved on each second guide shaft 305, and a second through hole is opened on the side wall of the frame 201 corresponding to the second guide shaft 305. The outer diameter of the second elastic member 306 is larger than the diameter of the second through hole. The second guide shaft 305 passes through the first through hole and can slide in the first through hole. One end of the second elastic member 306 is in contact with the wheel frame 301, and the other end of the second elastic member 306 is in contact with the side wall of the frame 201. When the traveling trolley 20 moves to the curve of the track 10, the second elastic member 306 is in a compressed state.

[0036] When the trolley 20 is still traveling on the straight track, the second elastic member 306 is in a relaxed state, and when one end of the second elastic member 306 contacts the wheel frame 301 or the side wall of the frame 201, a gap is left between the other end of the second elastic member 306 and the side wall of the frame 201 or the wheel frame 301, that is, when the trolley 20 is still traveling on the straight track, the second elastic member 306 has not been compressed, and the first elastic member 304 always provides pre-pressure for the trolley 20; when the trolley 20 travels to a curve, the width of the track 10 becomes narrower, and the two side walls of the track 10 are respectively The guide wheels 302 on both sides are further squeezed to make them move toward the inside of the track 10 for a second time. The first guide shaft 303 and the second guide shaft 305 slide inward synchronously under the guidance of the first through hole / the second through hole. The first elastic member 304 continues to be compressed, providing a small amount of pre-pressure for the traveling trolley 20 when turning. The gaps reserved at both ends of the second elastic member 306 gradually become smaller. The two ends of the second elastic member 306 respectively conflict with the side walls of the wheel frame 301 or the frame 201 until the second elastic member 306 is compressed, providing most of the pre-pressure for the traveling trolley 20 when turning.

[0037] Furthermore, the axial length of the second elastic member 306 is smaller than the axial length of the first elastic member 304, ensuring that the trolley 20 will not compress the second elastic member when traveling in a straight line. The elastic coefficient of the second elastic member 306 is greater than the elastic coefficient of the first elastic member 304. Due to the centripetal force during turning, the trolley 20 will produce a larger displacement than when traveling in a straight line. In order to maintain stability, the required pre-pressure is greater than that during traveling in a straight line. Therefore, the second elastic member 306 with a larger elastic coefficient is used to provide most of the pre-pressure for the trolley 20 when turning.

[0038] Furthermore, if one wishes to further increase the preload of the traveling trolley 20 during straight-line travel, the length of the second elastic member 306 may be appropriately adjusted.

[0039] Furthermore, one end of the second guide shaft 305 is connected to the wheel frame 301, and the other end of the second guide shaft 305 is connected to the limiting baffle 307 after passing through the second through hole. The distance between the limiting baffle 307 and the wheel frame 301 is not less than the sum of the axial length of the first elastic member 304 and the thickness of the side wall of the frame 201.

[0040] When the second elastic member 306 is compressed, the limit baffle 307 moves inward synchronously with the second guide shaft 305, connecting the wheel frame 301 and the side wall of the frame 201, so that after the traveling trolley 20 leaves the track 10, the wheel frame 301 will not leave the frame 201, making it convenient to use the traveling trolley 20 alone.

[0041] Furthermore, the limit baffle 307 can be moved and locked on the second guide shaft 305. For example, the limit baffle 307 can be threadedly connected to the second guide shaft 305 to adjust the distance between the limit baffle 307 and the wheel frame 301, thereby increasing / decreasing the pre-pressure of the traveling trolley 20 during travel as needed, so that the traveling trolley 20 can adapt to rails 10 of different specifications.

[0042] Furthermore, two guide wheel assemblies 30 respectively installed on the side walls of the frame 201 are arranged corresponding to each other, forming a pair of guide wheel assemblies; multiple pairs of guide wheel assemblies are evenly arranged on the side walls of the frame 201 along the forward direction of the traveling trolley 20.

[0043] The number of guide wheel assemblies 30 can be determined according to the height of the vehicle, and multiple guide wheel assemblies can be arranged in multiple rows to provide a larger and more uniform preload for the large traveling trolley.

[0044] Example 2

[0045] A suspended monorail system refers to a railway track system in which the vehicle is suspended below the track. Because the main track structure and the entire running space of the train are both at a certain height in the air, the track system requires a very small floor space, thus alleviating the problem of tight land resources in cities to a certain extent. In addition, since the train runs below the track, passengers inside the train have a wider field of view. Thanks to this, the suspended monorail can not only serve as a means of transportation to alleviate urban traffic problems, but also be used as a sightseeing vehicle, providing passengers with a better sightseeing experience. In addition, the cost of a suspended monorail is much lower than that of a subway, and the construction process is faster.

[0046] On the basis of the first embodiment, further, in the second embodiment, as Figure 6 As shown, the track 10 is a suspended track 101, and an opening is provided at the bottom of the suspended track 101 along the length direction of the track. The bottom of the traveling trolley 20 is connected to a suspension rod 40, and the suspension rod 40 is connected to the carriage 50 after passing through the opening.

[0047] Example 3

[0048] On the basis of the first embodiment, further, in the third embodiment, as Figure 7 As shown, the track 10 is a trough track 102 with an open top, and a carriage 50 is connected to the top of the traveling trolley, and the carriage 50 spans both sides of the track 10.

[0049] This embodiment provides a pre-stressed guided driving system with initial pre-stress. It uses a guide wheel assembly to apply pre-stress to the traveling trolley in the track, and uses a first elastic member and a second elastic member respectively, so that the traveling trolley can remain near the center line of the track whether it is traveling in a straight line or turning, making the vehicle travel more stable, improving comfort, and having strong practicality.

[0050] Those skilled in the art should understand that in the description of this application, the terms "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do 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 should not be understood as a limitation on this application.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0052] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0053] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0054] Obviously, those skilled in the art may 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 equivalents, this application is intended to include these modifications and variations.

Claims

1. A preloaded guided driving system, characterized in that: include: A traveling trolley (20) traveling within the track (10), wherein the traveling trolley (20) comprises a frame (201); At least two guide wheel assemblies (30) are respectively mounted on the side walls of both sides of the vehicle frame (201), the guide wheel assembly (30) comprises a wheel frame (301), a guide wheel (302) is arranged on the wheel frame (301) for transverse rotation, the guide wheel (302) is in close contact with the side wall of the track (10) and moves along the side wall of the track (10), and the guide wheel assembly (30) is elastically connected to the side wall of the vehicle frame (201); The wheel frame (301) is provided with first guide shafts (303) at the upper and lower ends of the guide wheel (302), respectively. The first guide shaft (303) is sleeved with a first elastic member (304). A first through hole is provided on the side wall of the vehicle frame (201). The first guide shaft (303) passes through the first through hole and can slide in the first through hole. When the traveling trolley (20) is installed on the track (10), the first elastic member (304) is in a compressed state. The length of the first guide shaft (303) is greater than the sum of the axial length of the first elastic member (304) and the thickness of the side wall of the vehicle frame (201); The wheel frame (301) is provided with second guide shafts (305) at the left and right ends of the guide wheel (302), and each second guide shaft (305) is sleeved with a second elastic member (306). A second through hole is provided on the side wall of the vehicle frame (201), and the second guide shaft (305) passes through the first through hole and can slide in the first through hole. The axial length of the second elastic member (306) is smaller than the axial length of the first elastic member (304), and the elastic coefficient of the second elastic member (306) is greater than the elastic coefficient of the first elastic member (304).

2. The preloaded guided vehicle system according to claim 1, characterized in that: One end of the second guide shaft (305) is connected to the wheel frame (301), and the other end of the second guide shaft (305) passes through the second through hole and is connected to a limit baffle (307), and the distance between the limit baffle (307) and the wheel frame (301) is not less than the sum of the axial length of the first elastic member (304) and the thickness of the side wall of the vehicle frame (201).

3. The preloaded guided vehicle system according to claim 1, characterized in that: Two guide wheel assemblies (30) respectively mounted on the side walls of both sides of the vehicle frame (201) are arranged corresponding to each other, forming a pair of guide wheel assemblies; a plurality of pairs of guide wheel assemblies are evenly arranged on the side walls of the vehicle frame (201) along the forward direction of the traveling trolley (20).

4. The preloaded guided vehicle system according to any one of claims 1 to 3, characterized in that: The track (10) is a suspended track (101), the bottom of the suspended track (101) is provided with an opening along the length direction of the track, the bottom of the traveling trolley (20) is connected to a suspension rod (40), and the suspension rod (40) is connected to a carriage (50) after passing through the opening.

5. The preloaded guided vehicle system according to any one of claims 1 to 3, characterized in that: The track (10) is a grooved track (102) with an open top, and a carriage (50) is connected to the top of the traveling trolley, and the carriage (50) is connected across both sides of the track (10).

6. The preloaded guided vehicle system according to claim 1, characterized in that: A driving wheel (202) is provided at the bottom of the vehicle frame (201), and the driving wheel (202) runs in close contact with the bottom wall of the track (10).

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