Shuttle vehicle chassis and photovoltaic cleaning shuttle vehicle

Abstract

The application discloses a shuttle vehicle chassis and a photovoltaic cleaning shuttle vehicle. The shuttle vehicle chassis comprises a chassis frame, a walking unit and a limiting wheel unit which are arranged on the chassis frame. The walking unit is used for walking along the tracks on both sides of the chassis frame in the width direction. The limiting wheel unit is at least two and is sequentially distributed along the length direction of the chassis frame. Each limiting wheel unit comprises a limiting wheel used for limiting cooperation with the track. At least one end of the limiting wheel unit in the chassis frame is an adjustable unit. The limiting wheel of the adjustable unit is an adjustable limiting wheel. The adjustable limiting wheel has an adjustable state capable of overturning relative to the track. The overturning shaft of the adjustable limiting wheel is parallel to the length direction of the chassis frame. The adjustable limiting wheel in the shuttle vehicle chassis can adapt to the height change of the track and the distance change between two tracks, thereby avoiding the track and the limiting wheel from being stuck due to the deviation of the track, and improving the reliability of the photovoltaic cleaning shuttle vehicle.

Description

Technical Field

[0001] This application relates to the field of photovoltaic cleaning technology, and more specifically, to a shuttle vehicle chassis and a photovoltaic cleaning shuttle vehicle. Background Technology

[0002] Cleaning robots, as a powerful tool for cleaning photovoltaic panels, are becoming increasingly common in photovoltaic power plants. Currently, if cleaning robots need to clean different rows of modules, they are usually transported by photovoltaic cleaning shuttle vehicles to improve the utilization rate of photovoltaic cleaning robots, reduce the number of photovoltaic cleaning robots deployed on-site, and lower cleaning costs.

[0003] The photovoltaic cleaning shuttle vehicle mainly adopts a rail-based design. Specifically, the shuttle vehicle chassis is arranged on pre-laid tracks. Limiting wheels on the chassis and the tracks are positioned vertically and widthwise to prevent the shuttle vehicle from tipping over. The advantage of this method is a relatively stable operating environment and simpler product design and debugging. However, in actual project sites, due to varying terrain and varying levels of manual construction skill, track deviations are prone to occur. For example, significant height deviations along different lengths of the track, or poor parallelism between two tracks (with an angle between them), can cause the limiting wheels and tracks to jam, affecting the normal operation of the photovoltaic cleaning shuttle vehicle and resulting in poor reliability.

[0004] In summary, how to avoid the limit wheels and track jamming due to track deviation, so as to improve the reliability of photovoltaic cleaning shuttle vehicles, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a shuttle vehicle chassis and a photovoltaic cleaning shuttle vehicle to avoid the limit wheels and track jamming due to track deviation, so as to improve the reliability of the photovoltaic cleaning shuttle vehicle.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A shuttle bus chassis includes: a chassis frame, and a traveling unit and a limiting wheel unit, both disposed on the chassis frame;

[0008] The walking unit is used to travel along the tracks on both sides of the chassis frame in the width direction;

[0009] The limiting wheel unit is at least two and is distributed sequentially along the length direction of the chassis frame. Each limiting wheel unit includes a limiting wheel for limiting and cooperating with the track.

[0010] The limiting wheel unit at at least one end of the chassis frame is an adjustable unit, and the limiting wheel of the adjustable unit is an adjustable limiting wheel. The adjustable limiting wheel has an adjustable state that can be rotated relative to the track, and the rotation axis of the adjustable limiting wheel is parallel to the length direction of the chassis frame.

[0011] Optionally, the adjustable limit wheel also has a locked state that does not flip relative to the track;

[0012] The adjustable unit further includes a limiting device, which has a limiting state that restricts the adjustable limiting wheel from rotating so that the adjustable limiting wheel is in the locked state, and a releasing state that releases the adjustable limiting wheel so that the adjustable limiting wheel is in the adjustable state.

[0013] Optionally, the limiting device includes: a first limiting member and a second limiting member; wherein, the first limiting member can restrict the adjustable limiting wheel from flipping to one side, and the second limiting member can restrict the adjustable limiting wheel from flipping to the other side.

[0014] Optionally, one of the first limiting member and the second limiting member is a movable limiting member and the other is a fixed limiting member; or, both the first limiting member and the second limiting member are movable limiting members.

[0015] The movable limiting member is movably disposed on the chassis frame so that the limiting device has a limiting state and a releasing state, and the fixed limiting member is fixed to the chassis frame.

[0016] Optionally, the adjustable unit further includes a driving device that drives the movable limiting member to move to switch between the locking state and the adjustable state.

[0017] Optionally, the driving component of the driving device is a one-way driving component, which drives the moving limit member to move forward to switch to the adjustable state;

[0018] The driving device also includes an elastic reset member. In the adjustable state, the elastic reset member is in a deformed state, and the elastic reset member can drive the moving limit member to move in the opposite direction through the restoring force to switch to the locking state.

[0019] Optionally, the unidirectional driving component is an electrically driven component; when the unidirectional driving component is energized, it drives the movable limiting component to move forward to switch to the adjustable state.

[0020] Optionally, the adjustable unit further includes a power generation device, which is disposed on the walking unit and generates electricity using the mechanical energy output by the walking unit to power the unidirectional drive component.

[0021] And / or, the unidirectional drive component is an electromagnet.

[0022] Optionally, the elastic reset component includes a torsion spring and a spring; wherein the torsion spring is sleeved on the flip shaft, and the spring is sleeved on the movable limiting component; in the adjustable state, both the torsion spring and the spring are in a deformed state; in the locked state, both the torsion spring and the spring are in a reset state.

[0023] Optionally, the driving component of the driving device is a bidirectional driving component. The bidirectional driving component drives the moving limit member to move forward to switch to the adjustable state, and the bidirectional driving component drives the moving limit member to move backward to switch to the locking state.

[0024] Optionally, the driving device includes: a transmission mechanism and a driving component, wherein the driving component drives the movable limiting member to move through the transmission mechanism;

[0025] The transmission mechanism includes a lever and a connecting component;

[0026] The lever is hinged to the chassis frame, and the first end of the lever is closer to the hinge point of the lever than the second end of the lever. The driving component is used to drive the first end of the lever to move.

[0027] One end of the connecting member is fixedly connected to the movable limiting member, the other end of the connecting member is slidably disposed at the second end of the lever along the length direction of the lever, and the movable limiting member is removably disposed on the chassis frame.

[0028] Optionally, the lever is hinged to the chassis frame via a hinge shaft, and the transmission mechanism further includes a first limiting sleeve and / or a second limiting sleeve; wherein, the first limiting sleeve is sleeved on the connecting member and abuts between the lever and the movable limiting member; the second limiting sleeve is sleeved on the hinge shaft and abuts between the lever and the chassis frame;

[0029] And / or, the second end of the lever is provided with a strip-shaped hole, the connecting member is slidably disposed in the strip-shaped hole, and the end of the connecting member has a boss, the boss restricting the connecting member from disengaging from the strip-shaped hole.

[0030] Optionally, the transmission mechanism includes a transmission shaft, which is fixedly connected to the output shaft of the driving component and the movable limiting member. The driving component drives the movable limiting member to move linearly via the transmission shaft.

[0031] Optionally, when both the first limiting member and the second limiting member are the movable limiting members, the first limiting member and the second limiting member are driven by two driving devices, and the two driving devices may have the same or different structures.

[0032] Optionally, in the width direction of the chassis frame, the first limiting member is farther away from the walking unit than the second limiting member; wherein, the first limiting member is the moving limiting member, and the second limiting member is the fixed limiting member.

[0033] Optionally, the fixing limiting component includes a bolt and a nut, the bolt being fixed to the chassis frame by the nut, and the end of the bolt abutting against a component that rotates synchronously with the adjustable limiting wheel.

[0034] Optionally, the chassis frame is provided with a tilting shaft, the tilting shaft is provided with a limit wheel mounting component, the limit wheel mounting component is rotatably arranged around the tilting shaft, and the adjustable limit wheel is rotatably arranged on the limit wheel mounting component around its axis.

[0035] Based on the shuttle vehicle chassis provided above, this application also provides a photovoltaic cleaning shuttle vehicle, which includes the shuttle vehicle chassis described in any of the above claims.

[0036] The working principle of the shuttle bus chassis provided in this application is as follows:

[0037] The limit wheel unit works in conjunction with the track limit to ensure that the traveling unit travels along the track and prevents the traveling unit from deviating from the track during travel;

[0038] The adjustable limit wheel of the adjustable unit can rotate around the flip axis to flip relative to the track. The flip axis is parallel to the length direction of the chassis frame. After the adjustable limit wheel flips, the contact position between the adjustable limit wheel and the inner wall of the track, the contact position between the adjustable limit wheel and the upper part of the track, the contact position between the adjustable limit wheel and the lower part of the track, and the distance between the adjustable limit wheel and the inner wall of the track can be adjusted.

[0039] During operation, when there is a height deviation in the position of different length directions in the track, there is a height deviation at both ends of the chassis frame. At least one of the limiting wheel units in the chassis frame is an adjustable unit. After the adjustable limiting wheel of the adjustable unit flips, it adjusts the contact position between the adjustable limiting wheel and the inner wall of the track, the contact position between the adjustable limiting wheel and the upper part of the track, and the contact position between the adjustable limiting wheel and the lower part of the track. This allows the adjustable limiting wheel to adapt to the height change of the track, thereby avoiding the limiting wheel and track from getting stuck due to the height deviation of the track.

[0040] During the movement, when there is an angle between the two tracks, the distance between the two tracks changes. After the adjustable limit wheel of the adjustable unit flips, it adjusts the distance between the adjustable limit wheel and the inner wall of the track, so that the adjustable limit wheel can adapt to the change in distance between the two tracks, thereby avoiding the limit wheel and track from getting stuck due to the angle between the two tracks (parallelism deviation of the tracks).

[0041] As can be seen from the working principle of the shuttle vehicle chassis described above, the shuttle vehicle chassis provided in this application avoids the limit wheel and track jamming due to track deviation, thereby improving the reliability of the photovoltaic cleaning shuttle vehicle. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0043] Figure 1 A schematic diagram of a shuttle bus chassis provided in an embodiment of this application;

[0044] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle;

[0045] Figure 3 for Figure 1 The diagram shows a partial structural schematic of the shuttle bus chassis.

[0046] Figure 4 for Figure 1 The diagram shows a partial structural schematic of the shuttle bus chassis.

[0047] Figure 5 for Figure 4 A partial structural diagram of the structure shown;

[0048] Figure 6 for Figure 5 Top view of the structure shown;

[0049] Figure 7 for Figure 1 The diagram shows a partial structural schematic of the shuttle bus chassis.

[0050] Figure 8 A partial structural schematic diagram of another structure of the shuttle bus chassis provided in the embodiments of this application;

[0051] Figure 9 for Figure 8 A schematic diagram of the structure from another direction.

[0052] Explanation of reference numerals in the attached figures:

[0053] 1 is the track, 2 is the chassis frame, 3 is the walking unit, 4 is the limit wheel unit, and 4a is the adjustable unit;

[0054] 41 is a limiting device, 411 is a first limiting member, 412 is a second limiting member, 4121 is a bolt, 4122 is a nut, 411a is a movable limiting member, and 412a is a fixed limiting member.

[0055] 42 is a driving device, 421 is a one-way driving component, 421a is an electromagnet, 422 is a torsion spring, 423 is a spring, 424 is a lever, 4241 is a strip hole, 425 is a connecting component, 426 is a first limiting sleeve, 427 is a second limiting sleeve, 428 is a torsion frame, and 429 is a transmission shaft.

[0056] 43 is the power generation device, 44 is the power generation mounting bracket, 45 is the limit wheel, 45a is the adjustable limit wheel, 46 is the tilting shaft, 47 is the limit wheel mounting component, 471 is the opening, and 48 is the mounting bracket. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0058] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions "a," "an," "the," "the," "the," and "this" are intended to also include expressions such as "one or more," unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, "one or more" refers to one, two, or more; "and / or" describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0059] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0060] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0061] The terms "parallel" and "perpendicular" used in this application refer to "basically parallel" and "basically perpendicular" in practical operation. "Basically parallel" can be understood as parallelism with a certain degree of error, and similarly, "basically perpendicular" can be understood as perpendicularity with a certain degree of error.

[0062] like Figures 1-3 As shown, the shuttle vehicle chassis provided in this embodiment includes: chassis frame 2, walking unit 3, and limiting wheel unit 4.

[0063] The chassis frame 2 is used to mount the photovoltaic cleaning device. In practice, to facilitate the installation of the photovoltaic cleaning device, the chassis frame 2 is used to mount the cleaning bracket, and the photovoltaic cleaning device is mounted on the cleaning bracket. Of course, other methods can also be used to install the photovoltaic cleaning device, and this embodiment does not limit this.

[0064] The walking unit 3 is mounted on the chassis frame 2 and is used to travel along the tracks 1 on both sides of the chassis frame 2 in the width direction. The walking unit 3 can be a walking wheel unit or other walking structure, and this embodiment does not limit it.

[0065] There are two tracks 1, distributed on both sides of the chassis frame 2 in the width direction. The aforementioned shuttle vehicle chassis may or may not include the aforementioned tracks 1.

[0066] The limiting wheel unit 4 is disposed on the chassis frame 2; there are two limiting wheel units 4, and they are distributed sequentially along the length direction of the chassis frame 2, that is, one limiting wheel unit 4 is located at one end of the chassis frame 2 and the other limiting wheel unit 4 is located at the other end of the chassis frame 2.

[0067] Each limiting wheel unit 4 includes a limiting wheel 45 for a defined engagement with the track 1. Since there are two tracks 1, each limiting wheel unit 4 includes at least two limiting wheels 45, at least one limiting wheel 45 and one track 1 for limiting engagement, and at least one limiting wheel 45 and another track 1 for limiting engagement.

[0068] It should be noted that the limiting wheel 45 and the track 1 limit each other in the following ways: the inner wall of the track 1 and the limiting wheel 45 limit each other in the width direction of the chassis frame 2; the upper part of the track 1 and the limiting wheel 45 limit each other in the vertical direction; and the lower part of the track 1 and the limiting wheel 45 limit each other in the vertical direction.

[0069] The limiting wheel 45 can rotate around its axis to ensure that the walking unit 3 moves normally along the track 1.

[0070] The limiting wheel unit 4 at one end of the chassis frame 2 is an adjustable unit 4a, and the limiting wheel 45 of the adjustable unit 4a is an adjustable limiting wheel 45a. The adjustable limiting wheel 45a has an adjustable state that can be rotated relative to the track 1, and the rotation axis 46 of the adjustable limiting wheel 45a is parallel to the length direction of the chassis frame 2. It should be noted that the axial direction of the rotation axis 46 is parallel to the length direction of the chassis frame 2.

[0071] In the above structure, the adjustable limit wheel 45a can be rotated relative to the track 1 by rotating around the flipping shaft 46. It should be noted that the adjustable limit wheel 45a has the function of the limit wheel 45.

[0072] In the above structure, the limiting wheel 45 of the limiting wheel unit 4 at the other end of the chassis frame 2 cannot be rotated relative to the track 1. The limiting wheel 45 of the limiting wheel unit 4 at the other end of the chassis frame 2 can be called a fixed limiting wheel, which can rotate around its own axis. In this way, the stability of the shuttle bus chassis is ensured, and the photovoltaic cleaning shuttle bus is prevented from tipping over.

[0073] During the journey, the adjustable unit 4a can be located at the front or rear of the shuttle bus chassis, depending on the actual situation.

[0074] In other examples, the limiting wheel units 4 at both ends of the chassis frame 2 can be selected to be adjustable units 4a. In this way, the limiting wheels 45 at both ends of the chassis frame 2 can be adjustable limiting wheels 45a, and the limiting wheels 45 at both ends of the chassis frame 2 can be rotated relative to the track 1.

[0075] In another embodiment, there may be three or more limiting wheel units 4, which are also distributed sequentially along the length of the chassis frame 2. In this case, at least one limiting wheel unit 4 at one end of the chassis frame 2 is an adjustable unit 4a. This can be understood as: one limiting wheel unit 4 at one end of the chassis frame 2 is an adjustable unit 4a; both limiting wheel units 4 at both ends of the chassis frame 2 are adjustable units 4a; one limiting wheel unit 4 at one end of the chassis frame 2 is an adjustable unit 4a and at least one limiting wheel unit 4 in the middle of the chassis frame 2 is an adjustable unit 4a; both limiting wheel units 4 at both ends of the chassis frame 2 are adjustable units 4a and at least one limiting wheel unit 4 in the middle of the chassis frame 2 is an adjustable unit 4a.

[0076] The working principle of the shuttle bus chassis provided in the above embodiments is as follows:

[0077] The limiting wheel unit 4 cooperates with the track 1 to ensure that the walking unit 3 walks along the track 1 and avoids the walking unit 3 deviating from the track 1 during walking;

[0078] The adjustable limit wheel 45a of the adjustable unit 4a can rotate around the flip axis 46 to flip relative to the track 1. The flip axis 46 is parallel to the length direction of the chassis frame 2. After the adjustable limit wheel 45a flips, the contact position between the adjustable limit wheel 45a and the inner wall of the track, the contact position between the adjustable limit wheel 45a and the upper part of the track, the contact position between the adjustable limit wheel 45a and the lower part of the track, and the distance between the adjustable limit wheel 45a and the inner wall of the track can be adjusted.

[0079] During the movement, when there is a height deviation in the position of different length directions in the track 1, there is a height deviation at both ends of the chassis frame 2. At least one end of the limiting wheel unit 4 in the chassis frame 2 is an adjustable unit 4a. After the adjustable limiting wheel 45a of the adjustable unit 4a is flipped, it adjusts the contact position between the adjustable limiting wheel 45a and the inner wall of the track, the contact position between the adjustable limiting wheel 45a and the upper part of the track, and the contact position between the adjustable limiting wheel 45a and the lower part of the track, so that the adjustable limiting wheel 45a can adapt to the height change of the track 1, thereby avoiding the limiting wheel 45a and the track 1 from getting stuck due to the height deviation of the track 1.

[0080] During the movement, when there is an angle between the two tracks 1, the distance between the two tracks 1 changes. After the adjustable limit wheel 45a of the adjustable unit 4a flips, it adjusts the distance between the adjustable limit wheel 45a and the inner wall of the track, so that the adjustable limit wheel 45a can adapt to the change in distance between the two tracks 1, thereby avoiding the limit wheel 45a and track 1 from getting stuck due to the angle between the two tracks 1 (parallelism deviation of track 1).

[0081] As can be seen from the working principle of the shuttle vehicle chassis described above, the shuttle vehicle chassis provided in the above embodiment avoids the limit wheel 45 and the track 1 from getting stuck due to deviation of the track 1, thereby improving the reliability of the photovoltaic cleaning shuttle vehicle.

[0082] In the aforementioned shuttle vehicle chassis, the adjustable limit wheel 45a rotates around two axes: one is the axis of the adjustable limit wheel 45a itself, and the other is the axis of the tilting shaft 46. Based on this, the adjustable limit wheel 45a can rotate in two ways: either the tilting shaft 46 can rotate around the axis of the adjustable limit wheel 45a, or the tilting shaft 46 cannot rotate around the axis of the adjustable limit wheel 45a.

[0083] To simplify the structure and facilitate the rotation of the tilting shaft 46 around its axis, the tilting shaft 46 can be selected to not rotate around the axis of the adjustable limit wheel 45a. Specifically, the chassis frame 2 is provided with a tilting shaft 46, the tilting shaft 46 is provided with a limit wheel mounting member 47, the limit wheel mounting member 47 is rotatably arranged around the tilting shaft 46, and the adjustable limit wheel 45a is rotatably arranged on the limit wheel mounting member 47 around its axis.

[0084] To facilitate the installation of the tilting shaft 46, the chassis frame 2 is provided with a mounting bracket 48, which can be installed at the bottom of the chassis frame 2. The tilting shaft 46 is mounted on the mounting bracket 48.

[0085] The photovoltaic cleaning device periodically cleans the photovoltaic modules. When cleaning is not required, the photovoltaic cleaning shuttle vehicle is parked near the photovoltaic modules. However, when the shuttle vehicle is parked, the adjustable limit wheel 45a can rotate, resulting in poor stability. To improve stability, the adjustable limit wheel 45a is also locked relative to the track 1. Thus, when the shuttle vehicle travels along the track 1, the adjustable limit wheel 45a is adjustable; when parked, it is locked, preventing jamming due to track deviation and improving overall stability.

[0086] In order to switch between the locked state and the adjustable state, the adjustable unit 4a also includes a limiting device 41, which is used to switch between the locked state and the adjustable state.

[0087] In this embodiment, the limiting device 41 has a limiting state that restricts the adjustable limiting wheel 45a from rotating so that the adjustable limiting wheel 45a is in a locked state, and a releasing state that releases the adjustable limiting wheel 45a so that the adjustable limiting wheel 45a is in an adjustable state. It should be noted that when the limiting device 41 releases the adjustable limiting wheel 45a, it means that the limiting device 41 no longer restricts the adjustable limiting wheel 45a from rotating, that is, after the limiting device 41 releases the adjustable limiting wheel 45a, the adjustable limiting wheel 45a can rotate.

[0088] In the above embodiments, when the limiting device 41 is in the released state, the adjustable limiting wheel 45a is in the adjustable state; when the limiting device 41 is in the limiting state, the adjustable limiting wheel 45a is in the locked state.

[0089] like Figure 5 and Figure 6 As shown, in some embodiments, in order to improve the reliability of the limiting device, the limiting device 41 may include: a first limiting member 411 and a second limiting member 412; wherein, the first limiting member 411 can limit the adjustable limiting wheel 45a from flipping to one side, and the second limiting member 412 can limit the adjustable limiting wheel 45a from flipping to the other side. In this way, the first limiting member 411 and the second limiting member 412 can cooperate to limit the flipping of the adjustable limiting wheel 45a.

[0090] To facilitate positioning, the first limiting member 411 and the second limiting member 412 can be sequentially distributed along the width direction of the chassis frame 2; the first limiting member 411 is farther away from the traveling unit 3 than the second limiting member 412. In this case, for ease of installation, the second limiting member 412 can be fixed to the chassis frame 2, while the first limiting member 411 is movably disposed on the chassis frame 2 so that the limiting device 41 has a limiting state and a releasing state. This avoids the second limiting member 412 interfering with the traveling unit and simplifies the structure of the entire shuttle vehicle chassis.

[0091] When the chassis frame 2 is provided with a mounting bracket 48, the first limiting member 411 is movably disposed on the mounting bracket 48, and the second limiting member 412 is fixed to the mounting bracket 48.

[0092] The second limiting member 412 is fixed to the chassis frame 2. The second limiting member 412 always restricts the adjustable limiting wheel 45a from flipping to one side. When the first limiting member 411 is moved to the first position, the first limiting member 411 restricts the adjustable limiting wheel 45a from flipping to the other side. When the first limiting member 411 is moved to the second position, the first limiting member 411 no longer restricts the adjustable limiting wheel 45a from flipping to the other side, so that the adjustable limiting wheel 45a can be flipped to the other side.

[0093] It should be noted that when the limiting device 41 is in the limiting state, both the first limiting member 411 and the second limiting member 412 restrict the adjustable limiting wheel 45a from rotating; when the limiting device 41 is in the releasing state, the first limiting member 411 releases the adjustable limiting wheel 45a. When the chassis frame 2 is provided with a rotating shaft 46, the rotating shaft 46 is provided with a limiting wheel mounting member 47, the limiting wheel mounting member 47 is rotatably mounted around the rotating shaft 46, and the adjustable limiting wheel 45a is rotatably mounted on the limiting wheel mounting member 47 around its axis, both the first limiting member 411 and the second limiting member 412 achieve the purpose of restricting the rotation of the adjustable limiting wheel 45a by restricting the rotation of the limiting wheel mounting member 47. Correspondingly, the first limiting member 411 achieves the purpose of releasing the adjustable limiting wheel 45a by releasing the limiting wheel mounting member 47. The first limiting member 411 and the second limiting member 412 both achieve the purpose of limiting the rotation of the limiting wheel mounting member 47 by interacting with the limiting wheel mounting member 47.

[0094] The structure of the second limiting member 412 is selected according to the actual situation. To facilitate the installation and removal of the second limiting member 412, it can be detachably fixed to the chassis frame 2. For example, the second limiting member 412 includes a bolt 4121 and a nut 4122. The bolt 4121 is fixed to the chassis frame 2 by the nut 4122, and the end of the bolt 4121 abuts against a component that rotates synchronously with the adjustable limiting wheel 45a. This facilitates the installation and removal of the second limiting member 412.

[0095] In the case where the chassis frame 2 is provided with a tilting shaft 46, the tilting shaft 46 is provided with a limit wheel mounting part 47, the limit wheel mounting part 47 is rotatably arranged around the tilting shaft 46, and the adjustable limit wheel 45a is rotatably arranged around its axis on the limit wheel mounting part 47, the limit wheel mounting part 47 is a component that tilts synchronously with the adjustable limit wheel 45a, that is, the end of the bolt 4121 abuts against the limit wheel mounting part 47, and the bolt 4121 is fixed to the limit wheel mounting part 47 by the nut 4122.

[0096] The number of nuts 4122 is selected according to the actual situation. In order to facilitate the second limiting member 412 to restrict the rotation of the adjustable limiting wheel 45a, at least two nuts 4122 can be selected, with at least one nut 4122 located on one side of the plate where the bolt 4121 is located, and at least one nut 4122 located on the other side of the plate where the nuts 4122 are located. This makes it easy to adjust the position of the bolt 4121, so that the end of the bolt 4121 can abut against the component that rotates synchronously with the adjustable limiting wheel 45a.

[0097] Of course, the second limiting member 412 can be selected as other detachable structures or other non-detachable structures, and this embodiment does not limit this.

[0098] In practice, the first limiting member 411 can be fixed to the chassis frame 2, and the second limiting member 412 can be movably disposed on the chassis frame 2, and is not limited to the above embodiment.

[0099] In other embodiments, both the second limiting member 412 and the first limiting member 411 can be movably disposed on the chassis frame 2 so that the limiting device 41 has a limiting state and a releasing state. For example... Figure 8 and Figure 9 As shown, the second limiting member 412 is movably disposed on the chassis frame 2.

[0100] In the above embodiments, when the limiting device 41 is in the limiting state, both the first limiting member 411 and the second limiting member 412 restrict the adjustable limiting wheel 45a from rotating; when the limiting device 41 is in the releasing state, both the first limiting member 411 and the second limiting member 412 release the adjustable limiting wheel 45a. Based on this, the locking state and the adjustable state can be switched by adjusting the positions of the second limiting member 412 and the first limiting member 411.

[0101] For ease of subsequent description, both the second limiting member 412, which is movably disposed on the chassis frame 2, and the first limiting member 411, which is movably disposed on the chassis frame 2, are referred to as movable limiting members 411a. Correspondingly, the second limiting member 412 or the first limiting member 411, which is fixed to the chassis frame 2, can be referred to as fixed limiting members 412a.

[0102] In some embodiments, in order to facilitate the movement of the aforementioned movable limiting member 411a, the aforementioned adjustable unit 4a further includes a driving device 42, which drives the movable limiting member 411a to move to switch between a locked state and an adjustable state.

[0103] When both the first limiting member 411 and the second limiting member 412 move the limiting member 411a, the first limiting member 411 and the second limiting member 412 can be selected to share the driving device 42. This facilitates the synchronous movement of the first limiting member 411 and the second limiting member 412, improving switching efficiency.

[0104] When both the first limiting member 411 and the second limiting member 412 move the limiting member 411a, since the first limiting member 411 and the second limiting member 412 are distributed sequentially along the width direction of the chassis frame 2, and there is a preset distance between the first limiting member 411 and the second limiting member 412, in order to simplify the driving device 42, the first limiting member 411 and the second limiting member 412 can be selected to have their corresponding driving devices 42, that is, the first limiting member 411 and the second limiting member 412 are driven by two driving devices 42 respectively, and the structures of the two driving devices 42 are the same or different.

[0105] The type of drive device 42 is selected according to the actual situation. In some embodiments, the drive component of the drive device 42 is a one-way drive component 421, which drives the moving limit member 411a to move forward to switch to the adjustable state; the drive device 42 also includes an elastic reset member, which is in a deformed state in the adjustable state, and can drive the moving limit member 411a to move in the reverse direction through the restoring force to switch to the locked state. In this way, the control and wiring of the drive component are simplified.

[0106] To simplify the structure, the unidirectional drive component 421 can be selected as an electrically driven component. When the unidirectional drive component 421 is energized, it drives the moving limit member 411a to move forward to switch to the adjustable state; when the unidirectional drive component 421 is de-energized, the elastic reset member drives the moving limit member 411a to move in the reverse direction to switch to the locked state.

[0107] In the above structure, the energization of the unidirectional drive component 421 needs to be controlled based on whether the photovoltaic cleaning shuttle vehicle is moving. For example... Figure 4 As shown, to simplify control and wiring, the adjustable unit 4a may also include a power generation device 43. The power generation device 43 is located in the walking unit 3 and generates electricity using the mechanical energy output from the walking unit 3 to power the unidirectional drive component 421. Thus, when the walking unit 3 is moving, the power generation device 43 can power the unidirectional drive component 421, thereby switching the adjustable limit wheel 45a to the adjustable state; when the walking unit 3 is not moving, the power generation device 43 cannot power the unidirectional drive component 421, and the elastic reset member drives the moving limit member 411a to move in the opposite direction, thereby switching the adjustable limit wheel 45a to the locked state.

[0108] To facilitate the installation of the power generation device 43, the walking unit 3 may be equipped with a power generation mounting bracket 44, and the power generation device 43 may be mounted on the power generation mounting bracket 44.

[0109] Of course, the unidirectional drive component 421 can also be powered from other devices, such as directly from the power supply of the photovoltaic cleaning shuttle vehicle, and is not limited to the above embodiments.

[0110] To simplify the structure, the unidirectional drive component 421 can also be an electromagnet 421. In this case, the moving limiter 411a is a component that can be attracted by the electromagnet 421, or the moving limiter 411a is provided with a component that can be attracted by the electromagnet 421.

[0111] With the electric drive component de-energized, the movable limit member 411a moves in the reverse direction to switch to the locked state. To facilitate the reverse movement of the movable limit member 411a, as follows: Figures 5-7As shown, the elastic reset components can include a torsion spring 422 and a spring 423; wherein, the torsion spring 422 is sleeved on the flip shaft 46, and the spring 423 is sleeved on the movable limiting member 411a; in the adjustable state, both the torsion spring 422 and the spring 423 are in the deformed state; in the locked state, both the torsion spring 422 and the spring 423 are in the reset state. In this way, the restoring force of the spring 423 drives the movable limiting member 411a to move in the opposite direction, and the restoring force of the torsion spring 422 switches the adjustable limiting wheel 45a to the locked state.

[0112] In the above structure, the torsion spring 422 is used to ensure that the adjustable limit wheel 44a has a restoring ability and a certain load-bearing capacity when it is in the adjustable state.

[0113] With a chassis frame 2 equipped with a tilting shaft 46, a limiting wheel mounting member 47 on the tilting shaft 46, the limiting wheel mounting member 47 being rotatably mounted around the tilting shaft 46, an adjustable limiting wheel 45a being rotatably mounted on the limiting wheel mounting member 47 around its axis, a mounting bracket 48 on the chassis frame 2, and the tilting shaft 46 being mounted on the mounting bracket 48, one end of the spring 423 abuts against the mounting bracket 48, and the other end of the spring 423 abuts against the movable limiting member 411a; in order to facilitate the installation of the torsion spring 422 and improve the structural compactness, the drive device 42 also includes a torsion frame 428 fixed to the chassis frame 2, the limiting wheel mounting member 47 having an opening 471 for accommodating the torsion spring 422 and the torsion frame 428, one end of the torsion spring 422 abuts against the torsion frame 428, and the other end of the torsion spring 422 abuts against the limiting wheel mounting member 47.

[0114] In practice, other structures can also be used to install spring 423 and torsion spring 422, and are not limited to the above embodiments.

[0115] The aforementioned one-way drive component 421 can also be a cylinder, a hydraulic cylinder, etc., and is not limited to an electric drive component.

[0116] In some other embodiments, the driving component of the driving device 42 is a bidirectional driving component. The bidirectional driving component drives the moving limit member 411a to move forward to switch to the adjustable state, and the bidirectional driving component drives the moving limit member 411a to move backward to switch to the locked state. This eliminates the need for a reset elastic member, simplifying the structure of the driving device 42. Of course, in this case, a reset elastic member can also be provided, allowing selection of whether the driving component performs bidirectional or unidirectional driving as needed.

[0117] The bidirectional drive component can be an electric drive component, a cylinder, or a hydraulic cylinder, etc., and this embodiment does not limit it.

[0118] In the aforementioned shuttle bus chassis, the drive unit 42 includes a drive component. To facilitate the drive component in moving the movable limiting member 411a, the drive unit 42 also includes a transmission mechanism. The drive component drives the movable limiting member 411a through the transmission mechanism. Thus, the transmission mechanism can be designed as needed to achieve the design objective. The drive component can be either the unidirectional drive component mentioned above or the bidirectional drive component mentioned above.

[0119] In some embodiments, such as Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 As shown, the transmission mechanism includes a lever 424 and a connecting member 425.

[0120] Lever 424 is hinged to chassis frame 2. To facilitate the hinged installation of lever 424, lever 424 can be hinged to chassis frame 2 via a hinge axis.

[0121] The shape of lever 424 is selected according to the actual situation. Lever 424 can be a straight structure, a broken line mechanism, or a curved structure, etc. When the driving device 42 includes an electromagnet 421, lever 424 can be attracted by the energized electromagnet 421. To increase the attraction force, lever 424 can be selected as a broken line mechanism. For example, lever 424 includes a lever section and a lever section fixedly connected. Both lever section one and lever section two are straight, and there is an included angle between lever section one and lever section two. Lever section two and electromagnet 421 are arranged parallel to each other.

[0122] The driving component of the driving device 42 is used to drive the first end of the lever 424 to move. One end of the connecting member 425 is fixedly connected to the moving limit member 411a. The other end of the connecting member 425 is slidably disposed at the second end of the lever 424 along the length direction of the lever 424. The moving limit member 411a is removably disposed on the chassis frame 2.

[0123] In the above structure, when the electromagnet 421 is energized, the electromagnet 421 attracts the first end of the lever 424, causing the lever 424 to rotate around the hinge point, that is, the second end of the lever 424 also rotates, causing the connecting member 425 to slide along the length direction of the lever 424. The sliding connecting member 425 pulls the moving limit member 411a, causing the moving limit member 411a to move in a straight line and move to the position where the moving limit member 411a releases the adjustable limit wheel 45a (limit wheel mounting member 47), thereby realizing the switching of the adjustable limit wheel 45a to the adjustable device.

[0124] When the driving component is an electromagnet 421, since the distance that the electromagnet 421 can attract the lever 424 to move is limited, in order to ensure that the movable limiting member 411a releases the adjustable limiting wheel 45a (limiting wheel mounting member 47), the first end of the lever 424 can be chosen to be closer to the hinge point of the lever 424 than the second end of the lever 424. In this way, the displacement of the second end of the lever 424 amplifies the displacement of the first end of the lever 424, ensuring the displacement of the connecting member 425, and thus ensuring the displacement of the movable limiting member 411a, thereby ensuring that the movable limiting member 411a releases the adjustable limiting wheel 45a (limiting wheel mounting member 47); moreover, when the displacement of the movable limiting member 411a is the same, the magnetic force of the electromagnet 421 can be reduced, thus reducing costs.

[0125] In practice, the first end of lever 424 can be chosen to be farther away from the hinge point of lever 424 than the second end of lever 424, or the hinge point of lever 424 can be located in the middle of lever 424.

[0126] In the above structure, during the movement of lever 424, both ends of lever 424 are prone to wobbling, affecting the movement of the moving limit member 411a. To prevent the wobbling of both ends of lever 424, lever 424 can be hinged to chassis frame 2 via a hinge shaft; the transmission mechanism also includes: a first limit sleeve 426 and a second limit sleeve 427; wherein, the first limit sleeve 426 is sleeved on the connecting member 425, and the first limit sleeve 426 abuts between lever 424 and moving limit member 411a; the second limit sleeve 427 is sleeved on the hinge shaft, and the second limit sleeve 427 abuts between lever 424 and chassis frame 2. In this way, the stability of lever 424 is improved by the first limit sleeve 426 and the second limit sleeve 427, preventing the wobbling of both ends of lever 424.

[0127] In other embodiments, the transmission mechanism may also include a first limiting sleeve 426 or a second limiting sleeve 427, and is not limited to the above embodiments.

[0128] The hinge shaft and connecting member 425 mentioned above can be a pin or other structure, and this embodiment does not limit them.

[0129] When the connecting member 425 is a pin, the connecting member 425 and the movable limiting member 411a can be fixedly connected by a cotter pin.

[0130] In the aforementioned shuttle bus chassis, to facilitate the slidable installation of the connecting member 425, a strip-shaped hole 4241 is provided at the second end of the lever 424, and the connecting member 425 is slidably disposed within the strip-shaped hole 4241. It should be noted that the length direction of the strip-shaped hole 4241 is parallel to the length direction of the lever 424. For example, the strip-shaped hole 4241 is an oblong hole or a hole of other shapes.

[0131] To prevent the connecting member 425 from disengaging from the slot 4241, the end of the connecting member 425 has a boss that restricts the connecting member 425 from disengaging from the slot 4241. For example, the width or diameter of the boss is greater than the width of the slot 4241.

[0132] Of course, the connecting member 425 can also be slidably disposed on the lever 424 through other structures, and is not limited to the above embodiment.

[0133] like Figure 8 and Figure 9 As shown, in some other embodiments, the transmission mechanism includes a transmission shaft 429, which drives and fixes the output shaft of a drive component (unidirectional drive component 421) and a movement limiting member 411a. The drive component drives the movement limiting member 411a to move linearly via the transmission shaft 429. The drive component can also be a bidirectional drive component. This simplifies the transmission structure, thereby simplifying the drive device 42.

[0134] The fixed connection method between the drive shaft 429 and the output shaft of the drive component, and the fixed connection method between the drive shaft 429 and the moving limit member 411a, can be selected according to the actual situation, such as fixed connection by cotter pin, etc., and this embodiment does not limit it.

[0135] In the aforementioned shuttle bus chassis, the limiting wheel 45 can be an elastic wheel, which can reduce the probability of the limiting wheel and track getting stuck due to track deviation.

[0136] Based on the shuttle bus chassis provided in the above embodiments, this application also provides a photovoltaic cleaning shuttle bus, which is applied to a photovoltaic power generation system. The photovoltaic cleaning shuttle bus includes the shuttle bus chassis described in the above embodiments.

[0137] Since the shuttle bus chassis provided in the above embodiments has the above-mentioned technical effects, and the photovoltaic cleaning shuttle bus includes the shuttle bus chassis described in the above embodiments, the photovoltaic cleaning shuttle bus also has the corresponding technical effects, which will not be repeated here.

[0138] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily 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 this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shuttle bus chassis, characterized in that, include: Chassis frame (2), and walking unit (3) and limit wheel unit (4) both disposed on the chassis frame (2); The walking unit (3) is used to walk along the tracks (1) on both sides of the chassis frame (2) in the width direction; The limiting wheel unit (4) is at least two and is distributed sequentially along the length direction of the chassis frame (2). Each limiting wheel unit (4) includes a limiting wheel (45) for limiting and cooperating with the track (1). The limiting wheel unit (4) at at least one end of the chassis frame (2) is an adjustable unit (4a), and the limiting wheel (45) of the adjustable unit (4a) is an adjustable limiting wheel (45a). The adjustable limiting wheel (45a) has an adjustable state that can be flipped relative to the track (1), and the flipping axis (46) of the adjustable limiting wheel (45a) is parallel to the length direction of the chassis frame (2). The adjustable limiting wheel (45a) adjusts itself by flipping: the contact position between the inner wall of the track (1) and the adjustable limiting wheel (45a), the contact position between the upper part of the track (1) and the adjustable limiting wheel (45a), the contact position between the lower part of the track (1) and the adjustable limiting wheel (45a), and the distance between the inner wall of the track (1) and the adjustable limiting wheel (45a); The adjustable limit wheel (45a) also has a locking state that does not flip relative to the track (1); The adjustable unit (4a) further includes a limiting device (41), which has: a limiting state that restricts the adjustable limiting wheel (45a) from rotating so that the adjustable limiting wheel (45a) is in the locked state, and a releasing state that releases the adjustable limiting wheel (45a) so that the adjustable limiting wheel (45a) is in the adjustable state. When the photovoltaic cleaning shuttle vehicle travels along the track (1), the adjustable limit wheel (45a) is in an adjustable state; when the photovoltaic cleaning shuttle vehicle is parked, the adjustable limit wheel (45a) is in a locked state.

2. The shuttle bus chassis according to claim 1, characterized in that, The limiting device (41) includes: a first limiting member (411) and a second limiting member (412); wherein the first limiting member (411) can restrict the adjustable limiting wheel (45a) from flipping to one side, and the second limiting member (412) can restrict the adjustable limiting wheel (45a) from flipping to the other side.

3. The shuttle bus chassis according to claim 2, characterized in that, One of the first limiting member (411) and the second limiting member (412) is a movable limiting member (411a) and the other is a fixed limiting member (412a); or, both the first limiting member (411) and the second limiting member (412) are movable limiting members (411a). The movable limiting member (411a) is movably disposed on the chassis frame (2) so that the limiting device (41) has a limiting state and a releasing state, and the fixed limiting member (412a) is fixed to the chassis frame (2).

4. The shuttle bus chassis according to claim 3, characterized in that, The adjustable unit (4a) further includes a drive device (42) that drives the movable limit member (411a) to move to switch between the locking state and the adjustable state.

5. The shuttle bus chassis according to claim 4, characterized in that, The driving component of the driving device (42) is a one-way driving component (421), which drives the moving limit member (411a) to move forward to switch to the adjustable state. The drive device (42) also includes an elastic reset member. In the adjustable state, the elastic reset member is in a deformed state. The elastic reset member can drive the movable limit member (411a) to move in the opposite direction by restoring force to switch to the locking state.

6. The shuttle bus chassis according to claim 5, characterized in that, The unidirectional drive component (421) is an electrically driven component; when the unidirectional drive component (421) is energized, the unidirectional drive component (421) drives the moving limit component (411a) to move forward to switch to the adjustable state.

7. The shuttle bus chassis according to claim 6, characterized in that, The adjustable unit (4a) further includes a power generation device (43), which is disposed on the walking unit (3) and generates electricity using the mechanical energy output by the walking unit (3) and supplies power to the unidirectional drive component (421). And / or, the unidirectional drive component (421) is an electromagnet (421a).

8. The shuttle bus chassis according to claim 5, characterized in that, The elastic reset component includes a torsion spring (422) and a spring (423); wherein the torsion spring (422) is sleeved on the flip shaft (46), and the spring (423) is sleeved on the movable limiting component (411a); in the adjustable state, both the torsion spring (422) and the spring (423) are in a deformed state; in the locked state, both the torsion spring (422) and the spring (423) are in a reset state.

9. The shuttle bus chassis according to claim 4, characterized in that, The driving component of the driving device (42) is a bidirectional driving component. The bidirectional driving component drives the moving limit member (411a) to move forward to switch to the adjustable state, and drives the moving limit member (411a) to move backward to switch to the locking state.

10. The shuttle bus chassis according to claim 4, characterized in that, The driving device (42) includes a transmission mechanism and a driving component, wherein the driving component drives the movable limiting member (411a) to move through the transmission mechanism.

11. The shuttle bus chassis according to claim 10, characterized in that, The transmission mechanism includes a lever (424) and a connecting member (425). The lever (424) is hinged to the chassis frame (2), and the first end of the lever (424) is closer to the hinge point of the lever (424) than the second end of the lever (424). The driving component is used to drive the first end of the lever (424) to move. One end of the connecting member (425) is fixedly connected to the movable limiting member (411a), and the other end of the connecting member (425) is slidably disposed at the second end of the lever (424) along the length direction of the lever (424). The movable limiting member (411a) is retractably disposed on the chassis frame (2).

12. The shuttle bus chassis according to claim 11, characterized in that, The lever (424) is hinged to the chassis frame (2) via a hinge shaft. The transmission mechanism further includes a first limiting sleeve (426) and / or a second limiting sleeve (427). The first limiting sleeve (426) is sleeved on the connecting member (425) and abuts between the lever (424) and the moving limiting member (411a). The second limiting sleeve (427) is sleeved on the hinge shaft and abuts between the lever (424) and the chassis frame (2). And / or, the second end of the lever (424) is provided with a strip hole (4241), the connecting member (425) is slidably disposed in the strip hole (4241), and the end of the connecting member (425) has a boss, the boss restricting the connecting member (425) from disengaging from the strip hole (4241).

13. The shuttle bus chassis according to claim 10, characterized in that, The transmission mechanism includes a transmission shaft, which is fixedly connected to the output shaft of the driving component and the moving limit member (411a). The driving component drives the moving limit member (411a) to move in a straight line through the transmission shaft.

14. The shuttle bus chassis according to claim 4, characterized in that, When both the first limiting member (411) and the second limiting member (412) are the moving limiting member (411a), the first limiting member (411) and the second limiting member (412) are driven by two driving devices (42), and the two driving devices (42) have the same or different structures.

15. The shuttle bus chassis according to claim 3, characterized in that, In the width direction of the chassis frame (2), the first limiting member (411) is farther away from the walking unit (3) than the second limiting member (412); wherein, the first limiting member (411) is the moving limiting member (411a), and the second limiting member (412) is the fixed limiting member (412a).

16. The shuttle bus chassis according to claim 3, characterized in that, The fixed limiting component (412a) includes a bolt (4121) and a nut (4122). The bolt (4121) is fixed to the chassis frame (2) by the nut (4122), and the end of the bolt (4121) abuts against the component that rotates synchronously with the adjustable limiting wheel (45a).

17. The shuttle bus chassis according to any one of claims 1-16, characterized in that, The chassis frame (2) is provided with a flip shaft (46), the flip shaft (46) is provided with a limit wheel mounting part (47), the limit wheel mounting part (47) is rotatably arranged around the flip shaft (46), and the adjustable limit wheel (45a) is rotatably arranged on the limit wheel mounting part (47) around its axis.

18. A photovoltaic sweeping shuttle vehicle, characterized in that, Includes the shuttle bus chassis as described in any one of claims 1-17.

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