Photovoltaic ferry vehicle and chassis thereof

Abstract

The utility model discloses a chassis of a photovoltaic ferry vehicle. The chassis comprises a supporting piece, a walking assembly and a connecting piece. A plurality of supporting pieces are arranged and comprise a first supporting piece and a second supporting piece; the first supporting piece is provided with a first guide wheel used for abutting against a first vehicle rail of the rail. The second supporting piece is provided with a second guide wheel used for abutting against a second vehicle rail of the rail. The walking assembly is installed on the supporting piece. The two ends of the connecting piece are installed on the first supporting piece and the second supporting piece respectively. The shape and / or the size of the connecting piece can be changed. In the chassis, the shape and / or the size of the connecting piece can be changed, so that the chassis is adaptive to the tracks with different distances and sizes, the first guide wheel and the second guide wheel are ensured to respectively abut against the first track and the second track of the tracks at the positions with too wide distances, the photovoltaic ferry vehicle applying the chassis is prevented from shaking and even derailing, and the service life of the photovoltaic ferry vehicle is prolonged. And the first guide wheel and the second guide wheel cannot tightly extrude the corresponding vehicle rails at the position with the too narrow distance, and clamping is prevented. The utility model further discloses a photovoltaic ferry vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic shuttle vehicles, and more specifically, to a chassis of a photovoltaic shuttle vehicle and also to a photovoltaic shuttle vehicle. Background Art

[0002] In the photovoltaic industry, photovoltaic shuttles are used to transport photovoltaic cleaning robots between different rows of photovoltaic modules. Photovoltaic shuttles have a lot of application space in small-scale photovoltaic power stations. The ability to carry photovoltaic cleaning robots across rows can bring extremely high cost-effectiveness and can greatly save project costs.

[0003] At present, photovoltaic shuttle buses usually travel on pre-built tracks. The track adopts a double-track mode, including two parallel tracks. However, the spacing between the two tracks is affected by the accuracy of the installation pile foundation at the bottom of the track, the settlement of the on-site foundation, etc., and it is difficult to ensure that it is consistent everywhere, resulting in the photovoltaic shuttle bus being unable to pass smoothly: the photovoltaic shuttle bus is prone to shaking where the spacing is too wide, and the photovoltaic shuttle bus is prone to getting stuck and unable to move where the spacing is too narrow.

[0004] Therefore, how to make the photovoltaic shuttle bus pass smoothly on the track is an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] In view of this, the utility model provides a chassis of a photovoltaic shuttle bus, wherein a connecting piece connects two supporting pieces, and the shape and / or size of the connecting piece can be changed to adapt to tracks with different spacing sizes, so that the photovoltaic shuttle bus can pass smoothly on the track. The utility model also provides a photovoltaic shuttle bus using the above chassis, which can travel on tracks with uneven spacing sizes and has low requirements on the spacing size accuracy of the track.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A chassis of a photovoltaic shuttle bus, comprising:

[0008] A support member, wherein the support members are multiple, including a first support member and a second support member; the first support member is equipped with a first guide wheel for pressing against a first rail of the track; the second support member is equipped with a second guide wheel for pressing against a second rail of the track;

[0009] A walking assembly, wherein the walking assembly is mounted on the supporting member;

[0010] A connecting member, two ends of which are respectively mounted on the first supporting member and the second supporting member; the shape and / or size of the connecting member can be changed.

[0011] Optionally, in the above chassis, the connecting member comprises two folding rods; the first end of the first folding rod is hinged to the first support member, and the first end of the second folding rod is hinged to the second support member; the second ends of the two folding rods are hinged to each other;

[0012] The first folding rod and the second folding rod are connected by a spring member, and the spring member provides a driving force to move the second ends of the two folding rods away from each other.

[0013] Optionally, in the above chassis, the spring member includes:

[0014] A main rod, the main rod comprising a screw rod segment and a straight rod segment connected to each other; one end of the screw rod segment away from the straight rod segment is hinged to the first folding rod, and one end of the straight rod segment away from the screw rod segment is hinged to the second folding rod;

[0015] A spring, wherein the spring is sleeved on the main rod;

[0016] Wherein, the screw rod segment is threadedly connected with a spring adjusting ring; the straight rod segment is fixed with a spring pressing disk; and the spring is clamped between the spring adjusting ring and the spring pressing disk.

[0017] Optionally, in the above-mentioned chassis, the traveling assembly includes a wheel set, and the wheel set includes a connecting shaft and a traveling wheel fixed to the connecting shaft; the traveling wheels are multiple and distributed at both ends of the connecting shaft; the connecting shaft can be rotatably installed on the first support member and the second support member around its own axis.

[0018] Optionally, in the above-mentioned chassis, the connecting shaft includes a sleeve shaft and a spline shaft; the spline shaft is inserted into the sleeve shaft, and the two are coaxial; the spline shaft and the sleeve shaft can both move relative to each other in the axial direction and remain relatively stationary in the circumferential direction; the spline shaft and the sleeve shaft can be rotatably installed on the first support member and the second support member respectively around their own axes.

[0019] Optionally, in the above chassis, the sleeve shaft is rotatably mounted on the first support member through a locating bearing around its own axis, and the spline shaft is rotatably mounted on the second support member through another locating bearing around its own axis.

[0020] Optionally, in the above chassis, the wheel groups are multiple groups, at least one of which is driven by a traveling power source, and the traveling power source is installed on the supporting member and / or the connecting shaft.

[0021] Optionally, in the above chassis, the axes of the guide wheels are parallel to each other and perpendicular to the axes of the traveling wheels.

[0022] Optionally, in the above chassis, there are plural first guide wheels and plural second guide wheels respectively.

[0023] A photovoltaic shuttle bus comprises a chassis, wherein the chassis is the chassis described in any one of the above technical solutions.

[0024] The utility model provides a chassis of a photovoltaic shuttle bus, comprising a support member, a traveling assembly and a connecting member; there are multiple support members, including a first support member and a second support member; the first support member is equipped with a first guide wheel for pressing against a first vehicle rail of a track; the second support member is equipped with a second guide wheel for pressing against a second vehicle rail of the track; the traveling assembly is installed on the support member; both ends of the connecting member are respectively installed on the first support member and the second support member; the shape and / or size of the connecting member can be changed.

[0025] When the chassis is assembled to the track, the first support member and the second support member are respectively close to the first rail and the second rail of the track, and the first guide wheel is inserted into the groove of the first rail and the second guide wheel is inserted into the groove of the second rail.

[0026] When the chassis moves to a position where the distance between the two rails is larger under the action of the walking assembly, the shape and / or size of the connecting member changes, and the first support member and the second support member move away from each other, thereby keeping the first support member close to the first rail and the second support member close to the second rail. At the same time, the first guide wheel on the first support member remains close to the first rail and the second guide wheel on the second support member remains close to the second rail, thereby preventing the chassis from shaking between the two rails and causing the photovoltaic shuttle bus to shake, and further preventing the chassis from derailing. Chassis derailment refers to the first guide wheel slipping out of the groove of the first rail and / or the second guide wheel slipping out of the groove of the second rail.

[0027] When the chassis moves to a position where the distance between the two rails is smaller under the action of the walking assembly, the shape and / or size of the connecting member undergoes another change, and the first support member and the second support member are brought closer to each other, thereby preventing the first support member from being too close to the first rail and the second support member from being too close to the second rail, thereby preventing the first and second guide wheels from squeezing the first and second rails respectively, allowing the chassis to pass smoothly and preventing the photovoltaic shuttle bus from getting stuck.

[0028] It can be seen that in the chassis provided by the utility model, the shape and / or size of the connecting parts can be changed, so that the chassis can adapt to tracks with different spacing sizes, ensuring that the first guide wheel and the second guide wheel respectively keep close to the first rail and the second rail of the track when the spacing is too wide, preventing the photovoltaic shuttle bus using the chassis from shaking or even derailing, and ensuring that the first guide wheel and the second guide wheel will not squeeze their corresponding rails when the spacing is too narrow, preventing jamming, so that the chassis can travel on tracks with different spacing sizes.

[0029] In addition, the shape and / or size of the connecting parts in the above-mentioned chassis can be changed, and can be adapted to tracks with different spacing specifications, so it is more universal and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the assembly of a chassis and a track provided in an embodiment of the utility model;

[0032] Figure 2 for Figure 1 Another angle schematic diagram of the structure shown;

[0033] Figure 3 A schematic diagram of the assembly of the first folding rod, the second folding rod and the spring member provided in an embodiment of the utility model;

[0034] Figure 4 A schematic diagram of the three-dimensional structure of a chassis provided in an embodiment of the utility model;

[0035] Figure 5 A schematic diagram of another angle of the chassis provided by an embodiment of the utility model;

[0036] in, Figure 1-Figure 5 middle:

[0037] Connecting member 101; first folding rod 111; second folding rod 112; spring member 102; spring connecting seat 121; screw rod section 122; spring adjusting ring 123; spring 124; straight rod section 125; spring pressing plate 126; first supporting member 103; first guide wheel 104; wheel set 105; walking wheel 151; spline shaft 152; sleeve shaft 153; second supporting member 106; walking power source 107; second guide wheel 108; positioning bearing 109; hinge support 110;

[0038] The first track 201 and the second track 202 . DETAILED DESCRIPTION

[0039] The utility model embodiment discloses a chassis of a photovoltaic shuttle bus, wherein a connecting piece connects two supporting pieces, and the shape and / or size of the connecting piece can be changed to adapt to tracks with different spacing sizes, so that the photovoltaic shuttle bus can pass smoothly on the track. The utility model embodiment also discloses a photovoltaic shuttle bus using the above chassis, which can travel on tracks with uneven spacing sizes and has low requirements on the spacing size accuracy of the track.

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] See also Figure 1-5 The embodiment of the utility model provides a chassis of a photovoltaic shuttle bus, including a support member, a traveling assembly and a connecting member 101; there are multiple support members, including a first support member 103 and a second support member 106; the first support member 103 is equipped with a first guide wheel 104, and the first guide wheel 104 is used to press against the first vehicle rail 201 of the track; the second support member 106 is equipped with a second guide wheel 108, and the second guide wheel 108 is used to press against the second vehicle rail 202 of the track; the traveling assembly is installed on the support member; both ends of the connecting member 101 are respectively installed on the first support member 103 and the second support member 106; the shape and / or size of the connecting member 101 can be changed.

[0042] When the chassis is assembled to the track, the first support member 103 is close to the first rail 201 of the track, the second support member 106 is close to the second rail 202 of the track respectively, and the first guide wheel 104 is inserted into the groove of the first rail 201, and the second guide wheel 108 is inserted into the groove of the second rail 202.

[0043] When the chassis moves to a position where the distance between the two rails is larger under the action of the walking assembly, the shape and / or size of the connecting member 101 changes, and the first support member 103 and the second support member 106 move away from each other, so that the first support member 103 remains close to the first rail 201 and the second support member 106 remains close to the second rail 202. At the same time, the first guide wheel 104 on the first support member 103 remains close to the first rail 201 and the second guide wheel 108 on the second support member 106 remains close to the second rail 202, thereby preventing the chassis from shaking between the two rails and causing the photovoltaic shuttle bus to shake, and further preventing the chassis from derailing. Chassis derailment refers to the first guide wheel 104 slipping out of the groove of the first rail 201 and / or the second guide wheel 108 slipping out of the groove of the second rail 202.

[0044] When the chassis moves to a position where the distance between the two rails is smaller under the action of the walking assembly, the shape and / or size of the connecting member 101 undergoes another change, and the first support member 103 and the second support member 106 are brought closer to each other, thereby preventing the first support member 103 from being too close to the first rail 201 and the second support member 106 from being too close to the second rail 202, thereby preventing the first and second guide wheels from squeezing the first and second rails respectively, allowing the chassis to pass smoothly and preventing the photovoltaic shuttle bus from getting stuck.

[0045] It can be seen that in the chassis provided by this embodiment, the shape and / or size of the connecting member 101 can be changed, so that the chassis can adapt to tracks with different spacing sizes, ensuring that the first guide wheel 104 and the second guide wheel 108 respectively keep close to the first rail 201 and the second rail 202 of the track when the spacing is too wide, preventing the photovoltaic shuttle bus using the chassis from shaking or even derailing, and ensuring that the first guide wheel 104 and the second guide wheel 108 will not squeeze their corresponding rails when the spacing is too narrow, preventing jamming, so that the chassis can travel on tracks with different spacing sizes.

[0046] In addition, the shape and / or size of the connecting member 101 in the above chassis can be changed, and can be adapted to tracks with different spacing specifications, so it is more versatile and practical.

[0047] Furthermore, the above-mentioned chassis is adaptable to tracks with different spacing sizes, and there is no need to repeatedly adjust the accuracy of the track during debugging and after foundation settlement, thereby reducing the difficulty of adjustment and subsequent maintenance.

[0048] In one embodiment, the first rail 201 and the second rail 202 of the track are respectively groove-shaped structures, and the cross-sections are respectively U-shaped, and the openings of the two rails are arranged opposite to each other, such as Figure 1 , 2 As shown; accordingly, the first guide wheel 104 and the second guide wheel 108 are respectively inserted into the first rail 201 and the second rail 202 through the opening, and roll along the side walls of the two rails respectively, which can prevent the photovoltaic shuttle bus from deviating to one side of the rail or overturning.

[0049] Of course, in the solution where the two rails are groove structures with U-shaped cross-sections, the openings of the two rails can also be arranged to be arranged opposite to each other. The rails can also be arranged to have an "I"-shaped cross-section, and accordingly, the first guide wheel 104 and the second guide wheel 108 can be arranged to be respectively inserted into the grooves opposite to each other in the two rails, or to be respectively inserted into the grooves opposite to each other in the two rails. This embodiment does not limit the structure of the rails, and only needs to ensure that it can cooperate with the first guide wheel 104 and the second guide wheel 108 to prevent the photovoltaic shuttle from overturning.

[0050] The connector 101 can be configured to automatically change shape and / or size. For example, the connector 101 is configured as a piston structure, including an outer tube and a piston rod; the piston rod includes a rod body and a piston fixed to the rod body; the piston is located inside the outer tube and divides the inside of the outer tube into two unconnected spaces; the rod body extends out of the outer tube, and the position in the outer tube for inserting the rod body is sealed; the rod body and the outer tube are respectively fixed to the first support member 103 and the second support member 106; and the two unconnected spaces in the outer tube are respectively filled with gas.

[0051] The chassis of the connecting member 101 having the piston structure is applied to Figure 1 When the chassis moves to the track shown, the air pressure on the first side of the piston (i.e., the side of the piston facing the direction of the rod extending outward) is less than the air pressure on the second side (i.e., the side of the piston away from the direction of the rod extending outward). If the chassis moves to a position where the distance between the two tracks is larger, the squeezing force of the track on the piston rod becomes smaller, the force on the piston is unbalanced, and the air pressure on the second side drives the piston to move, and the piston drives the rod to extend outward, so that the overall length of the connecting member 101 becomes larger, the distance between the first support member 103 and the second support member 106 increases, and the first guide wheel 104 and the second guide wheel 108 are respectively kept close to two different tracks to prevent shaking and derailment. If the chassis moves to a position where the spacing between the two rails is smaller, the squeezing pressure of the rail on the piston rod becomes larger, and the piston rod overcomes the air pressure on the second side of the piston under the squeezing pressure of the rail and retracts into the outer tube, so that the overall length of the connecting member 101 becomes smaller, and the distance between the first support member 103 and the second support member 106 is reduced, and the first guide wheel 104 and the second guide wheel 108 are respectively kept close to two different rails and will not get stuck.

[0052] The connecting member 101 may also be configured to change shape and / or size through the action of other components. For example, the connecting member 101 may be configured to include two folding rods; the first end of the first folding rod 111 is hinged to the first support member 103, and the first end of the second folding rod 112 is hinged to the second support member 106; the second end of the first folding rod 111 and the second end of the second folding rod 112 are hinged to each other; the first folding rod 111 and the second folding rod 112 are connected by a spring member 102, and the spring member 102 provides a driving force for the second ends of the two folding rods to move away from each other.

[0053] The chassis having the above-mentioned connecting member 101 is applied to Figure 1 When the track is shown, the spring member 102 provides a driving force to move the second ends of the two folding rods away from each other, that is, a force to move the first support member 103 and the second support member 106 toward opening a larger angle.

[0054] If the chassis moves to a position where the spacing between the two rails is larger, the rail extrusion pressure on the connecting member 101 (the rail extrusion pressure is transmitted to the connecting member 101 through the guide wheel and the support member) becomes smaller, and the second ends of the first folding rod 111 and the second folding rod 112 move away from each other under the action of the spring member 102, and the angle between the first folding rod 111 and the second folding rod 112 becomes larger, so that the distance between the first support member 103 and the second support member 106 increases, and the first guide wheel 104 and the second guide wheel 108 are respectively kept close to two different rails to prevent shaking and derailment. If the chassis moves to a position where the spacing between the two rails is smaller, the rail squeezing force on the connecting member 101 becomes larger, and the rail squeezing force overcomes the resistance of the spring member 102 to drive the second ends of the first and second folding rods closer to each other, and the angle between the first folding rod 111 and the second folding rod 112 becomes smaller, so that the distance between the first support member 103 and the second support member 106 is reduced, and the first guide wheel 104 and the second guide wheel 108 are respectively kept close to two different rails and will not get stuck.

[0055] In one embodiment, the spring member 102 is configured to include a main rod and a spring 124. Figure 3 As shown; the main rod includes a screw segment 122 and a straight rod segment 125 connected to each other; one end of the screw segment 122 away from the straight rod segment 125 is hinged to the first folding rod 111, and one end of the straight rod segment 125 away from the screw segment 122 is hinged to the second folding rod 112; the spring 124 is sleeved on the main rod; wherein, the screw segment 122 is threaded with a spring adjustment ring 123, and the straight rod segment 125 is fixed with a spring clamping disk 126; the spring 124 is clamped between the spring adjustment ring 123 and the spring clamping disk 126.

[0056] In the chassis provided in this embodiment, the two support members are connected by a foldable connecting member 101, and the connecting member 101 is also equipped with a spring member 102. When the track spacing is different, the guide wheels on the frame can be folded by themselves to ensure that they always press against the side walls of the track without shaking, derailing, or getting stuck.

[0057] The first folding rod 111 and the second folding rod 112 may be respectively mounted with a spring connection seat 121 for hingedly connecting the spring member 102, so as to facilitate the assembly of the spring member 102. The first support member 103 and the second support member 106 may be respectively mounted with a hinge support 110, so as to be hingedly connected with the first end of the first folding rod 111 and the first end of the second folding rod 112, respectively.

[0058] The traveling assembly includes a wheel set 105, which includes a connecting shaft and a traveling wheel 151 fixed to the connecting shaft; there are multiple traveling wheels 151, which are distributed at both ends of the connecting shaft; the connecting shaft is rotatably mounted on the first support member 103 and the second support member 106 around its own axis. The traveling wheel 151 can travel along the upper surface of the rail by friction.

[0059] The connecting shaft includes a sleeve shaft 153 and a spline shaft 152; the spline shaft 152 is inserted into the sleeve shaft 153, and the axes of the sleeve shaft 153 and the spline shaft 152 coincide with each other; the spline shaft 152 and the sleeve shaft 153 can move relative to each other in the axial direction and remain relatively stationary in the circumferential direction; the spline shaft 152 can be rotatably installed on the first support member 103 around its own axis, and the sleeve shaft 153 can be rotatably installed on the second support member 106 around its own axis, or the spline shaft 152 can be rotatably installed on the second support member 106 around its own axis, and the sleeve shaft 153 can be rotatably installed on the first support member 103 around its own axis.

[0060] In this embodiment, the sleeve shaft 153 and the spline shaft 152 of the connecting shaft are inserted and matched with each other to achieve a bite effect. On the one hand, the two can transmit rotational power in the circumferential direction, and on the other hand, the two can perform axial relative movement to adapt to the change in the distance between the first support member 103 and the second support member 106. At the same time, the connecting shaft can be used as a supporting beam of the entire chassis to ensure that when the shape or size of the connecting member 101 changes (such as when the angle between the first folding rod 111 and the second folding rod 112 of the connecting member 101 changes), the overall frame composed of the connecting member 101 and the supporting member will not be distorted, and only the distance between the first support member 103 and the second support member 106 changes.

[0061] In one embodiment, the sleeve shaft 153 is rotatably mounted on the first support member 103 through a locating bearing 109, and the spline shaft 152 is rotatably mounted on the second support member 106 through another locating bearing 109. The locating bearing 109 is fixedly connected to the support member.

[0062] In the travel assembly, there are multiple groups of wheels 105 , at least one of which is driven by a travel power source 107 , and the travel power source 107 is fixed to the support member and / or the connecting shaft of the wheel group 105 .

[0063] In the chassis, the axes of the guide wheels are parallel to each other and perpendicular to the axis of the running wheel 151. The first guide wheel 104 and the second guide wheel 108 can be provided in plural numbers respectively.

[0064] An embodiment of the utility model further provides a photovoltaic shuttle vehicle, comprising a chassis, which is the chassis provided in the above embodiment.

[0065] The photovoltaic shuttle provided in this embodiment uses the chassis provided in the above embodiment, and can travel on tracks with uneven spacing, and has low requirements on the accuracy of the spacing of the tracks. Of course, the photovoltaic shuttle provided in this embodiment also has other effects related to the chassis provided in the above embodiment, which will not be repeated here.

[0066] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0067] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chassis of a photovoltaic shuttle bus, characterized in that: include: A support member, wherein the support members are multiple, including a first support member and a second support member; the first support member is equipped with a first guide wheel for pressing against a first rail of the track; the second support member is equipped with a second guide wheel for pressing against a second rail of the track; A walking assembly, wherein the walking assembly is mounted on the supporting member; A connecting member, two ends of which are respectively mounted on the first supporting member and the second supporting member; the shape and / or size of the connecting member can be changed.

2. The chassis according to claim 1, characterized in that: The connecting member comprises two folding rods; the first end of the first folding rod is hinged to the first supporting member, the first end of the second folding rod is hinged to the second supporting member; the second ends of the two folding rods are hinged to each other; The first folding rod and the second folding rod are connected by a spring member, and the spring member provides a driving force to move the second ends of the two folding rods away from each other.

3. The chassis according to claim 2, characterized in that: The spring member comprises: A main rod, the main rod comprising a screw rod segment and a straight rod segment connected to each other; one end of the screw rod segment away from the straight rod segment is hinged to the first folding rod, and one end of the straight rod segment away from the screw rod segment is hinged to the second folding rod; A spring, wherein the spring is sleeved on the main rod; Wherein, the screw rod segment is threadedly connected with a spring adjusting ring; the straight rod segment is fixed with a spring pressing disk; and the spring is clamped between the spring adjusting ring and the spring pressing disk.

4. The chassis according to claim 1, characterized in that: The walking assembly includes a wheel set, which includes a connecting shaft and a walking wheel fixed to the connecting shaft; the walking wheels are multiple and distributed at both ends of the connecting shaft; the connecting shaft can be rotatably installed on the first support member and the second support member around its own axis.

5. The chassis according to claim 4, characterized in that: The connecting shaft includes a sleeve shaft and a spline shaft; the spline shaft is inserted into the sleeve shaft, and the two are coaxial; the spline shaft and the sleeve shaft can move relative to each other in the axial direction and remain relatively stationary in the circumferential direction; the spline shaft and the sleeve shaft are respectively rotatably installed on the first support member and the second support member around their own axes.

6. The chassis according to claim 5, characterized in that The sleeve shaft is rotatably mounted on the first support member through a locating bearing, and the spline shaft is rotatably mounted on the second support member through another locating bearing.

7. The chassis according to claim 4, characterized in that: There are multiple wheel groups, at least one of which is driven by a travel power source, and the travel power source is installed on the support member and / or the connecting shaft.

8. The chassis according to claim 4, characterized in that: The axes of the guide wheels are parallel to each other and perpendicular to the axes of the travel wheels.

9. The chassis according to claim 1 or 8, characterized in that: There are plural first guide wheels and plural second guide wheels.

10. A photovoltaic shuttle bus, characterized in that: It comprises a chassis, and the chassis is the chassis described in any one of claims 1-9.

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