A gear transmission driving device and photovoltaic cleaning robot

Abstract

The utility model provides a gear transmission drive device and a photovoltaic cleaning robot, including a first gear assembly, which is used for coaxial transmission connection with a brush shaft; two second gears, which are symmetrically arranged about the axis of the first gear assembly, and are respectively coaxially transmission connected with the shafts of two traveling parts, and the two second gears are both transmission connected with the first gear assembly through a first idler gear; a driving gear, which is transmission connected with the first gear assembly through a second idler gear; a motor driving module, which has an output shaft rotating around its own axis, and its output shaft is coaxially transmission connected with the driving gear, and is used to drive the two second gears to rotate synchronously while driving the first gear assembly to rotate, so as to simultaneously drive the brush shaft and the two traveling parts to rotate around their own axes respectively. The utility model reduces the overall volume and weight, improves the transmission accuracy, and realizes the smooth driving of the photovoltaic cleaning robot through a gear chain transmission structure; and has a long service life, which is conducive to energy saving and cost reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component cleaning equipment, in particular to a gear transmission driving device and a photovoltaic cleaning robot. Background Art

[0002] As we all know, the photovoltaic arrays of photovoltaic power stations are set up outdoors. In the industry, in order to reduce the impact of dust and stains on the power generation efficiency of photovoltaic power stations, most of them use photovoltaic cleaning robots to regularly clean the photovoltaic arrays inside.

[0003] At present, photovoltaic cleaning robots on the market are mainly driven by an open sprocket structure; however, this driving method, due to the large weight and volume of the assembly and poor manufacturing precision, often has problems such as loud operating noise due to vibration, poor lubrication, and poor transmission stability; at the same time, it is difficult to produce and has high maintenance and replacement costs, and there is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a gear transmission drive device and a photovoltaic cleaning robot, which promotes overall miniaturization and lightweight development through the gear transmission structure, thereby improving manufacturing and transmission accuracy, reducing operating vibration, noise and poor lubrication problems, achieving smooth driving of the photovoltaic cleaning robot, and effectively extending its service life, promoting energy saving and cost reduction.

[0005] The technical solution provided by the utility model is as follows:

[0006] On the one hand, the utility model provides a gear transmission drive device for a photovoltaic cleaning robot, wherein the photovoltaic cleaning robot comprises a brush and a walking part; the gear transmission drive device comprises:

[0007] shell;

[0008] A first gear assembly, used for coaxial transmission connection with the brush;

[0009] The second gear comprises two second gears, the two second gears are symmetrically arranged about a center line, and the two second gears are used for being coaxially connected to the traveling member respectively; the two second gears are connected to the first gear assembly through a first idler gear;

[0010] A driving gear, wherein the driving gear is drivingly connected to the first gear assembly via a second idler gear, and the rotation centers of the driving gear, the second idler gear and the first gear assembly are located on the center line;

[0011] A motor drive module, wherein the motor drive module has an output shaft that rotates around its own axis, and the output shaft of the motor drive module is coaxially connected to the driving gear, and is used to drive the two second gears to rotate synchronously while driving the first gear assembly to rotate, so as to simultaneously drive the brush and the walking part to rotate around their own axes respectively.

[0012] The utility model provides a gear transmission drive device for a photovoltaic cleaning robot. In actual application, the first gear assembly is connected to the brush through coaxial transmission, and the two second gears are connected to the corresponding walking parts through coaxial transmission. When the output shaft of the motor drive module rotates, it drives the driving gear to rotate synchronously, and the driving gear drives the first gear assembly to rotate synchronously through the second idler gear, thereby realizing the driving of the brush on the photovoltaic cleaning robot; at the same time, the first gear assembly drives the two second gears to rotate through the first idler gear, thereby realizing the synchronous driving of the corresponding walking parts on the photovoltaic cleaning robot.

[0013] In this way, the power output by the motor drive module is transmitted from top to bottom and then to both sides through the drive gear, the second idler gear, the first gear assembly, the first idler gear and the second gear, thereby dispersing the power output by the motor drive module and the drive gear transmits force unilaterally, thereby reducing the probability of excessive load on the drive gear directly connected to the output shaft of the motor drive module as much as possible, avoiding its premature failure and extending its service life.

[0014] At the same time, compared with the sprocket transmission structure in the related art, the technical solution of the utility model realizes power transmission through multiple gears meshing in sequence, forming a modular gearbox structure, so that the radius size of the single gear inside is smaller and the weight is lighter, which is convenient for improving its manufacturing accuracy, thereby making its transmission process more stable, effectively reducing vibration, noise, poor lubrication and other problems during operation. In addition, due to the small size and light weight of a single gear, the production difficulty is low, maintenance and replacement are convenient, and it is not easy to be damaged within the service life, which effectively reduces the relevant cost investment of enterprises and users, and is conducive to energy saving and cost reduction.

[0015] In some embodiments, the first gear assembly includes a first gear and a third gear, the third gear and the first gear are coaxially arranged and spaced apart, and the two gears rotate synchronously;

[0016] The third gear meshes with the first idler gear, and the first gear meshes with the second idler gear;

[0017] A radius of the third gear is smaller than a radius of the first gear.

[0018] The utility model provides a gear transmission drive device for a photovoltaic cleaning robot, which forms a first gear assembly by combining a first gear and a third gear that are coaxially spaced and rotate synchronously, which helps to reduce the load of the first gear assembly and extend its service life; at the same time, the structure is simple and easy to set up, making the production cost of the gear transmission drive device even lower. In addition, the radius of the third gear is set smaller than the radius of the first gear. On the one hand, it is convenient to adjust the speed ratio of the walking part and the brush; on the other hand, after the assembly is completed, the positions of the two second gears are closer to the first gear assembly, which helps to improve the structural compactness of the gear transmission drive device, promote its overall miniaturization, and then promote the miniaturization development of the corresponding photovoltaic cleaning robot.

[0019] In some embodiments, the first idler gear, the two second gears, and the third gear are all located in a first vertical plane;

[0020] The driving gear, the second idler gear and the first gear are all located in a second vertical plane, and the first vertical plane is closer to the brush relative to the second vertical plane.

[0021] Through the gear transmission drive device for a photovoltaic cleaning robot provided by the utility model, the first idler gear, two second gears and the third gear are all located in the same vertical plane, and the driving gear, the second idler gear and the first gear are located in the same vertical plane, which helps to improve the structural stability of the gear transmission drive device.

[0022] In some embodiments, the first idler wheel comprises a plurality of wheels, and the radii of the plurality of first idler wheels are the same;

[0023] And / or, the second idler gear includes a plurality of gears; and the radii of the driving gear, the plurality of second idler gears and the first gear increase one by one along the power transmission direction.

[0024] Through the gear transmission drive device for a photovoltaic cleaning robot provided by the utility model, the radius of multiple first idler wheels is set to be the same, and the multiple first idler wheels are only used to transmit power and change the rotation direction of the gears, and the transmission ratio is not changed; and the radii of the driving gear, multiple second idler wheels, and the first gear are set to increase one by one along the power transmission direction. On the one hand, since the output shaft of the motor drive module is connected to the driving gear of smaller size, it helps to reduce the loss of output power of the motor drive module; on the other hand, it helps to reduce the load of the output shaft of the motor drive module, improve its driving stability, and at the same time extend its service life. In addition, multiple first idler gears are arranged between the first gear assembly and the second gear, and multiple second idler gears are arranged between the first gear assembly and the driving gear. On the one hand, this helps to further reduce the weight and size of a single gear in the gear transmission drive device, thereby further improving its manufacturing accuracy, reducing the probability of the gear transmission drive device generating vibration, noise, poor lubrication and other problems during operation, further improving its operating stability, and thereby ensuring its smooth driving of the photovoltaic cleaning robot; on the other hand, since there are multiple idler gears on each power transmission path, the power output by the motor drive module and the operating resistance of the walking parts will not be concentrated on a single shaft, which helps to make the forces on each gear in the gear transmission system more balanced, thereby effectively promoting the stability of the transmission process.

[0025] In some embodiments, the housing includes a first shell and a second shell, and the first shell and the second shell are detachably fixedly engaged along the axial direction of the driving gear;

[0026] The first gear assembly, the second gear, the driving gear, the first idler gear and the second idler gear are all installed in the housing and rotate relative to the housing around their own axes respectively;

[0027] The motor drive module is installed on the housing, and its output shaft extends into the housing and is coaxially connected with the driving gear.

[0028] The utility model provides a gear transmission drive device for a photovoltaic cleaning robot, in which a shell is provided to fix a first gear assembly, a second gear, a driving gear, a first idler gear and a second idler gear. This helps to avoid as much as possible the accelerated damage of the gear structures in the gear transmission system due to long-term exposure to the outside and exposure to wind and sun, thereby effectively extending the service life of the gear transmission drive device and reducing user costs.

[0029] In some embodiments, the driving gear includes a hollow gear shaft, which is coaxially sleeved on the output shaft of the motor driving module and is detachably fixedly connected to the output shaft of the motor driving module around its own axis; both ends of the hollow gear shaft are rotatably arranged on the outer shell through bearings.

[0030] The utility model provides a gear transmission drive device for a photovoltaic cleaning robot, in which the driving gear is arranged as a hollow gear shaft, which is sleeved on the output shaft of the motor drive module to realize the assembly of the driving gear and the motor drive module, thereby effectively improving the convenience of assembling the driving gear and the motor drive module; at the same time, bearing supports are arranged at both ends of the hollow gear shaft to realize the stable installation of the driving gear in the outer shell; the gear transmission drive device has a simple assembly structure and is easy to produce and maintain, thus helping to further reduce its production and use costs.

[0031] In some embodiments, the first gear assembly further includes a gear shaft, and the first gear and the third gear are coaxially fixed on the gear shaft; the side of the third gear axially away from the first gear is coaxially transmission-connected with the brush.

[0032] The utility model provides a gear transmission drive device for a photovoltaic cleaning robot, wherein a gear shaft, a first gear, and a third gear are combined to form a first gear assembly, and the side of the third gear axially away from the first gear is coaxially connected to the brush to achieve driving of the brush by the first gear assembly; the first gear assembly has a simple structure and is easy to produce and assemble, which helps to further ensure the convenience of production and assembly of the gear transmission drive device.

[0033] In some embodiments, the first gear assembly further includes a gear shaft and a sleeve coaxially sleeved on the gear shaft, the sleeve rotates relative to the gear shaft around its own axis, and the first gear and the third gear are coaxially fixed to the sleeve;

[0034] One end of the gear shaft close to the third gear is coaxially connected to the brush.

[0035] The utility model provides a gear transmission drive device for a photovoltaic cleaning robot, in which a sleeve is arranged to rotate independently relative to the gear shaft, the brush is fixed coaxially with the gear shaft, and the first gear and the third gear are fixed coaxially with the sleeve, so that the brush and the third gear can rotate independently. The structure is simple, and the production and assembly are convenient, which helps to further save the production cost of the enterprise and improve the convenience of use of the gear transmission drive device.

[0036] On the other hand, the utility model further provides a photovoltaic cleaning robot, comprising any one of the above-mentioned gear transmission drive devices for photovoltaic cleaning robots, wherein the gear transmission drive device comprises two;

[0037] The machine body, the two gear transmission drive devices are respectively installed on both sides of the machine body in the direction of its own travel;

[0038] A brush, wherein the two gear transmission drive devices are respectively connected to the two ends of the brush, and the axial direction of the brush is perpendicular to the traveling direction of the machine body;

[0039] Traveling parts, any one of the gear transmission driving devices corresponds to two of the traveling parts, the rotating shafts of the two traveling parts are arranged in parallel and at intervals, and are both parallel to the axis of the brush, and the two traveling parts are symmetrically arranged about the axis of the brush.

[0040] In some embodiments, the two gear transmission drive devices include a driving gear transmission drive device and a driven gear transmission drive device, the first gear assembly of the driving gear transmission drive device includes a gear shaft, and the first gear and the third gear are coaxially fixed on the gear shaft; the first gear assembly of the driven gear transmission drive device includes a gear shaft and a sleeve sleeved on the gear shaft, and the first gear and the third gear are coaxially fixed on the sleeve.

[0041] Compared with the prior art, the gear transmission drive device and photovoltaic cleaning robot provided by the utility model have at least one of the following beneficial effects:

[0042] 1. The gear transmission drive device of the utility model realizes the transmission of the output power of the motor drive module from top to bottom and then to both sides through a plurality of gears meshing in sequence. The structure is simple, and the single gear in the gear transmission system assembly is small in size, light in weight, and has high manufacturing precision, which effectively reduces the problems of vibration, noise, poor lubrication, etc. during operation, so that the gear transmission drive device can stably drive the corresponding photovoltaic cleaning robot; at the same time, the production difficulty of each component is low, and the maintenance and replacement are convenient. It is not easy to be damaged within the service life and has a long service life, which effectively reduces the relevant cost investment of enterprises and users and is conducive to energy saving and cost reduction.

[0043] 2. In the utility model, by providing a shell to cover the first gear, the second gear, the driving gear, the first idler gear, the second idler gear and the third gear, it helps to reduce the situation where the gear transmission structure is exposed to the outside for a long time and is damaged by wind and sun, thereby effectively extending the service life of the gear transmission drive device and further reducing the user's cost of use.

[0044] 3. In the utility model, with the help of a third gear which is coaxially arranged with the first gear and has a smaller radius than the first gear, the speed ratio of the brush and the walking part is adjusted, and the compactness of the gear transmission structure in the gear transmission drive device is improved, thereby effectively reducing the overall volume of the gear transmission drive device, which is conducive to its miniaturization and effectively reducing the volume of the corresponding photovoltaic cleaning robot.

[0045] 4. In the utility model, by setting up multiple first idler wheels and second idler wheels, the weight and size of the corresponding driving gear, the first gear and the second gear in the gear transmission drive device are effectively reduced, thereby effectively promoting the miniaturization and lightweight development of the single gear structure, and helping to further improve the manufacturing accuracy of the corresponding gears, thereby stably ensuring the smooth driving of the photovoltaic cleaning robot by the gear transmission drive device.

[0046] At the same time, the power output by the motor drive module is transmitted to the first gear assembly through the driving gear and multiple second idler gears, and the first gear assembly drives the brush while rotating; and, when the first gear assembly includes a first gear and a third gear coaxially spaced, the third gear disperses the received power to both sides and transmits it to the second gear through multiple first idler gears, thereby driving the walking parts; in this way, the power output by the motor drive module on the gear transmission drive device of the photovoltaic cleaning robot is first transmitted from top to bottom, and then transmitted to both sides respectively. Since there are multiple idler gears on each power transmission path, the power output by the motor drive module and the resistance of the walking parts will not be concentrated on a single shaft, and the force on each gear or gear shaft will be more evenly balanced, effectively ensuring the smooth transmission of the gear transmission system. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The preferred implementation scheme will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present solution.

[0048] Figure 1 It is an axonometric diagram mainly showing the arrangement of brushes and walking parts on the body of a photovoltaic cleaning robot in the related art;

[0049] Figure 2 This is an axonometric schematic diagram of the overall structure of the gear transmission drive device for a photovoltaic cleaning robot according to an embodiment of the utility model;

[0050] Figure 3 It is an exploded view of the embodiment of the utility model mainly showing the setting position of the first gear;

[0051] Figure 4 It is an axonometric schematic diagram mainly showing the setting position of the third gear in the embodiment of the utility model;

[0052] Figure 5 This is an axonometric diagram of the embodiment of the utility model mainly showing the location of the motor drive module on the housing;

[0053] Figure 6 This is an axonometric diagram of the embodiment of the utility model mainly showing the matching mode between the motor drive module and the drive gear;

[0054] Figure 7This is a front view of the overall structure of the gear transmission system in the gear transmission drive device of the embodiment of the utility model;

[0055] Figure 8 yes Figure 7 The cross-sectional view in the middle BB direction is mainly used to reflect the overall structure of the active gear transmission drive device;

[0056] Fig. 9 yes Figure 7 The cross-sectional view in the middle BB direction is mainly used to show the installation position of the sleeve in the driven gear transmission drive device.

[0057] Description of reference numerals:

[0058] 1. first gear assembly; 11. first gear; 12. third gear; 13. sleeve; 2. second gear; 3. drive gear; 4. motor drive module; 5. first idler gear; 6. second idler gear; 7. housing; 71. first housing; 72. second housing; 8. bearing;

[0059] 100, brush shaft; 200, walking part; 300, center line. DETAILED DESCRIPTION

[0060] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0061] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0062] In the photovoltaic field, in order to reduce the impact of dust, stains, etc. on the power generation efficiency of photovoltaic power stations, the industry often uses photovoltaic cleaning robots to regularly clean the photovoltaic arrays. Figure 1 The photovoltaic cleaning robot generally includes a brush 100 rotatably arranged on the body and two walking parts 200. ，The rotating shafts of the two traveling parts 200 are parallel to the axis of the brush 100 and are symmetrically arranged about the axis of the brush 100. At present, in the industry, the brush 100 and the traveling part 200 are mostly synchronously driven through an open sprocket structure; however, this driving method, due to the large weight and volume of the assembly, poor manufacturing precision, often has problems such as vibration, noise and poor lubrication, and poor transmission stability; at the same time, the large weight and volume make it difficult to produce and maintain, and the production and use costs are high.

[0063] In this regard, refer to the accompanying drawings of the specification Figures 2 to 9 In one embodiment, a gear transmission drive device for a photovoltaic cleaning robot (hereinafter referred to as a gear transmission drive device) is provided, which realizes synchronous driving of the brush 100 and the walking part 200 of the photovoltaic cleaning robot by meshing a plurality of gears in sequence, thereby improving the stability of the transmission operation and reducing the corresponding cost. Specifically, it includes a housing 7, a first gear assembly 1, two second gears 2, a driving gear 3 and a motor drive module 4 for providing power, wherein the first gear assembly 1, the two second gears 2, and the driving gear 3 are all installed in the housing to rotate around their own axes.

[0064] The first gear assembly 1 is used for coaxial transmission connection with the brush 100 to drive the brush 100 to rotate around its own axis relative to the machine body; Figure 3 , Figure 4 , Figure 6 , Figure 8 and Fig. 9 , the two second gears 2 are symmetrically arranged about a center line 300, and are used to be coaxially connected to the two traveling parts 200 respectively, so as to drive the two traveling parts 200 to rotate around their own axes relative to the machine body respectively; and, in order to reduce the weight and volume of the corresponding first gear assembly 1 and the second gear 2, in this embodiment of the utility model, the two second gears 2 are both connected to the first gear assembly 1 through the first idler gear 5; similarly, the driving gear 3 is connected to the first gear assembly 1 through the second idler gear 6, and the rotation centers of the driving gear 3, the second idler gear 6 and the first gear assembly 1 are all located on the symmetric center line 300 of the two second gears 2; the motor driving module 4 is mounted on the outer wall of the housing 7, and the motor driving module 4 has an output shaft that rotates around its own axis, and the output shaft extends into the housing 7 and is coaxially connected to the driving gear 3.

[0065] In one embodiment, based on the above embodiment, specifically, in this embodiment of the utility model, the first gear assembly 1 includes a first gear 11. In practical applications, after the motor drive module 4 is started, its output shaft rotates, driving the drive gear 3 to rotate synchronously, and the drive gear 3 drives the first gear 11 to rotate synchronously through the second idler gear 6, thereby realizing the driving of the brush 100 on the photovoltaic cleaning robot; at the same time, the first gear 11 drives the two second gears 2 to rotate respectively through different first idler gears 5, thereby realizing the driving of the two walking parts 200 on the photovoltaic cleaning robot at the same time.

[0066] In this way, the power output by the motor drive module 4 is transmitted in sequence through the drive gear 3, the second idler gear 6, the first gear assembly 1, the first idler gear 5 and the second gear 2, so as to be transmitted from top to bottom and then to both sides respectively, thereby dispersing the power output by the motor drive module 4 and making the drive gear 3 transmit force unilaterally, thereby minimizing the probability of excessive load on the drive gear 3 directly connected to the output shaft of the motor drive module 4, avoiding its premature failure and extending its service life. At the same time, compared with the open sprocket transmission structure in the related art, this embodiment of the utility model connects the first gear 1 and the second gear 2 through the first idler gear 5, and connects the driving gear 3 and the first gear 1 through the second idler gear 6. On the one hand, the multiple gears that mesh in sequence reduce the radius size and weight of a single gear in the gear transmission system, effectively promote the development of a single gear in the gear transmission system towards miniaturization and lightweight, and then improve its manufacturing accuracy, so that the transmission process of the photovoltaic cleaning robot by the gear transmission drive device is smoother, effectively reducing the vibration, noise, poor lubrication and other problems generated during the operation of the photovoltaic cleaning robot, and improving its operating stability; on the other hand, since there is an idler transmission on each power transmission path, the power output by the motor drive module 4 and the operating resistance of the walking component 200 will not be applied to a single shaft, so that each gear in the gear transmission system is balanced in force, and the transmission and rotation are smooth. Furthermore, since the corresponding first gear assembly 1, the second gear 2, the driving gear 3, the first idler gear 5 and the second idler gear 6 are small in size and light in weight, the production difficulty is low, and the maintenance and replacement are convenient. Also, because the transmission is stable and there is a housing 7 covering the corresponding gears, the service life is longer and they are not easily damaged during their service life, which effectively reduces the relevant cost investment of enterprises and users and is conducive to energy saving and cost reduction.

[0067] In the embodiments of the present patent application, based on the above embodiments, specifically, referring to Figures 1 to 9 In order to ensure the manufacturing accuracy of the corresponding gears, the volume of the corresponding gears needs to be reduced to a suitable size as much as possible. In this embodiment of the utility model, reference is made to Figure 3 and Figure 4The first idler gears 5 for transmission connection between the first gear 11 and the second gear 2 include multiple first idler gears 5, and the multiple first idler gears 5 are meshed in sequence along the power transmission direction from the first gear 11 to the second gear 2; in this embodiment of the utility model, the multiple first idler gears 5 are only used to transmit power and change the rotation direction of the gears, and do not change the transmission ratio. Therefore, the radii of the multiple first idler gears 5 are the same, which can improve versatility.

[0068] However, it is well known that the rotation speeds of the brush 100 and the walking component 200 on the photovoltaic cleaning robot are different. In order to achieve a better cleaning effect, the rotation speed of the brush 100 should be significantly greater than the rotation speed of the walking component 200. In this regard, in this embodiment of the utility model, preferably, refer to Figure 4 The first gear assembly 1 further includes a third gear 12 coaxially spaced apart from the first gear 11, the third gear 12 rotates synchronously with the first gear 11, and the radius of the third gear 12 is smaller than the radius of the first gear 11. During assembly, the first gear 11 meshes with the second idler gear 6, the third gear 12 meshes with the first idler gear 5, and the third gear 12 is coaxially connected to the brush 100.

[0069] In actual applications, the output shaft of the motor drive module 4 rotates, and drives the second idler wheel 6 and the first gear 11 to rotate synchronously in sequence through the driving gear 3; while the first gear 11 rotates, it drives the third gear 12 and the brush 100 coaxially connected to the third gear 12 to rotate, thereby driving the brush 100 on the photovoltaic cleaning robot; at the same time, the third gear 12 is sequentially connected to the corresponding first idler wheel 5 and the second gear 2, thereby driving the two driving components 200 on the photovoltaic cleaning robot.

[0070] In this embodiment of the utility model, in order to facilitate the assembly of the first gear 11 and the third gear 12, the first gear assembly 1 is provided to further include a gear shaft, the first gear 11 and the third gear 12 are coaxially sleeved on the gear shaft, and are respectively fixed relative to the gear shaft around their own axes; during assembly, the side of the third gear 12 axially away from the first gear 11 is coaxially fixed to the brush 100, so that the first gear assembly 1 can drive the brush 100 coaxially. The first gear assembly 1 has a simple structure, low cost, and is easy to produce and use.

[0071] In addition, in order to ensure the stability of the overall structure of the gear transmission drive device, the first idler wheel 5, the two second gears 2 and the third gear 12 are located in a first vertical plane; in actual production, due to the different widths of gears of different models, in this embodiment of the utility model, preferably, the first idler wheel 5, the two second gears 2 and the third gear 12, at least half of the width dimension of the plane is located in the first vertical plane, and the four can be considered to be located in the same vertical plane; of course, the more dimensions are located in the first vertical plane, the more stable the structure of the gear transmission drive device is.

[0072] Similarly, the driving gear 3, the second idler gear 6 and the first gear 11 are all located in the second vertical plane, and the first vertical plane is closer to the brush than the second vertical plane. Of course, the driving gear 3, the second idler gear 6 and the first gear 11, at least half of the plane of the width dimension is located in the second vertical plane, and it can be considered that the three are located in the same vertical plane.

[0073] Of course, in this embodiment of the present invention, the second idler gear 6 for transmission connection between the driving gear 3 and the first gear 1 may also include a plurality of them; for example, referring to Figures 2 to 5 , the number of second idler wheels 6 is set to 2; different from the first idler wheel 5, in this embodiment of the utility model, the radii of the driving gear 3, the two second idler wheels 6 and the first gear 1 increase one by one along the power transmission direction.

[0074] In practical applications, setting a smaller radius of the driving gear 3 to be connected to the output shaft of the motor driving module 4, on the one hand, helps the motor driving module 4 to provide efficient power output and reduce power output losses; on the other hand, it also helps to reduce the load of the output shaft of the motor driving module 4, improve its driving stability, and extend its service life. In addition, setting the radii of the driving gear 3, the second idler gear 6, and the first gear 1 to increase one by one along the power transmission direction further reduces the size and weight of each gear structure on the power transmission path from the output shaft of the motor driving module 4 to the brush 100, and at the same time, it also makes the transmission gear system of the gear transmission drive device more beautiful as a whole.

[0075] At the same time, in order to improve the convenience of assembly, in this embodiment of the utility model, the driving gear 3 is set as a hollow gear shaft; during assembly, the driving gear 3 is coaxially sleeved on the output shaft of the motor drive module 4, and is detachably fixed to the output shaft of the motor drive module 4 around its own axis. In this embodiment of the utility model, the cross-section of the inner cavity of the driving gear 3 can be set to be polygonal. During actual assembly, the driving gear 3 can be sleeved to the output shaft of the motor drive module 4 along its own axis, and can be fixedly connected to the output shaft of the motor drive module 4 around its own axis; the installation structure is simple, which further improves the convenience of production and use of the gear transmission drive device.

[0076] Further, in this embodiment of the present invention, referring to Figure 1 , Figure 2 and Figure 5The housing 7 specifically includes a first shell 71 and a second shell 72. The first shell 71 and the second shell 72 are detachably fixedly engaged with each other along the axial direction of the driving gear 3 to form an accommodating cavity for accommodating the first gear 11, the second gear 2, the first idler gear 5, the driving gear 3, the second idler gear 6 and the third gear 12. Both ends of the first gear 1, the second gear 2, the first idler gear 5, the driving gear 3, the second idler gear 6 and the third gear 12 are rotatably arranged in the accommodating cavity through bearings 8, so that they can rotate around their own axes relative to the first shell 71 and the second shell 72 respectively, so as to achieve stable installation of each in the housing 7.

[0077] If the shell 7 on one side close to the brush 100 and the walking part 200 is defined as the first shell 71, and the other side is defined as the second shell 72; in order to reduce the volume of the corresponding photovoltaic cleaning robot, in this embodiment of the utility model, preferably, the motor drive module 4 is detachably mounted on the outer wall of the first shell 71, and its output shaft extends into the shell 7 along the axial direction of the driving gear 3, and is coaxially connected with the driving gear 3.

[0078] In this embodiment of the utility model, the housing of the motor drive module 4 can be quickly installed on the first housing 71 by means of structures such as bolts. When the photovoltaic cleaning robot needs to be driven to operate, the output shaft of the motor drive module 4 is quickly extended into the housing 7, and coaxially inserted into the drive gear 3 along its own axis, and then the housing of the motor drive module 4 is quickly fixed to the housing 7 by means of bolts, etc., so that the power input device can be quickly assembled; after the corresponding photovoltaic cleaning robot is used, the motor drive module 4 is removed from the housing 7 and used on other photovoltaic cleaning robots, or stored. In this way, the user does not need to equip each photovoltaic cleaning robot with a motor drive module 4 separately, which also helps to extend the service life of the corresponding motor drive module 4 and helps to further reduce the cost of use.

[0079] In addition, in this embodiment of the utility model, the first shell 71 and the second shell 72 can also be detachably connected by structures such as bolts; of course, in other embodiments of the utility model, the first shell 71 and the second shell 72 can also be detachably connected along the snap-fit ​​direction by snapping, magnetic attraction, hooking, etc., which are not elaborated here; at the same time, the connection method between the first shell 71 and the second shell 72 and the installation method of the motor drive module 4 on the shell 7 should not be used as a limitation on the protection scope of the utility model.

[0080] It should be noted that, in actual application, one gear transmission drive device needs to be installed on each side of the photovoltaic cleaning robot body in the direction of travel, that is, one photovoltaic cleaning robot includes two gear transmission drive devices, specifically including an active gear transmission drive device and a driven gear transmission drive device, to respectively support the two ends of the brush 100 axis, and realize the separate driving of the two pairs of walking parts 200 on both sides of the body in the direction of travel. In this embodiment of the utility model, in order to ensure the normal driving of the brush shaft 100, the specific structure of the first gear assembly 11 on the active gear transmission drive device is set as described in the above embodiment, that is, including the first gear 11, the third gear 12 and the gear shaft, the first gear 11 and the third gear 12 are coaxially fixed on the gear shaft, and the side of the third gear 12 axially away from the first gear 11 is coaxially connected to the brush 100. As for the driven gear transmission drive device, since it is not necessary to provide power for the rotation operation of the brush 100, the structure of the first gear assembly 11 on the driven gear transmission drive device is different from the first gear assembly 11 on the aforementioned active gear transmission drive device. In the driven gear transmission driving device, the first gear assembly 11 also includes a first gear 11 and a third gear 12. In addition, it also includes a gear shaft and a sleeve 13 coaxially sleeved on the gear shaft, wherein the sleeve 13 rotates independently around its own axis relative to the gear shaft, the first gear 11 and the third gear 12 are coaxially fixedly sleeved on the sleeve 13, and the gear shaft is coaxially connected to the end of the brush 100 axially away from the driving gear transmission driving device.

[0081] In actual applications, the output shaft of the motor drive module 4 rotates, and drives the driving gear 3, the second idler gear 6, and the first gear 11 to rotate in turn. The first gear 11 drives the third gear 12 to rotate synchronously through the sleeve 13. Since the sleeve 13 rotates independently around its own axis relative to the gear shaft, the third gear 12 does not transmit power to the brush 100, that is, the first gear assembly 11 of the driven gear transmission drive device only realizes the supporting function for the brush 100.

[0082] In the following, the technical solution of the utility model is further described in combination with the brush shaft 100 and the walking component 200. In one embodiment, a photovoltaic cleaning robot is provided, referring to Figures 1 to 9 , including any of the above-mentioned gear transmission drive devices, the gear transmission drive device includes two, the two gear transmission drive devices are respectively a driving gear transmission drive device and a driven gear transmission drive device; it also includes a body, a brush 100 rotatably arranged on the body, and a traveling component 200; wherein, the axial direction of the brush 100 is arranged perpendicular to the travel direction of the body, the rotating shaft of the traveling component 200 is arranged parallel to the axis of the brush 100, and two traveling components 200 are arranged corresponding to the driving gear transmission drive device and the driven gear transmission drive device, and the two traveling components 200 are symmetrically arranged about the axis of the brush 100.

[0083] The driving gear transmission driving device and the driven gear transmission driving device are respectively installed on both sides of the machine body in the direction of its own travel, and are respectively connected to both ends of the brush 100. The side of the third gear 12 on the driving gear transmission driving device axially away from the first gear 11 is coaxially connected to the brush 100, and the gear shaft of the first gear assembly 1 on the driven gear transmission driving device is coaxially connected to the brush 100.

[0084] The implementation principle of the utility model is as follows: in actual application, the active gear transmission drive device and the driven gear transmission drive device are respectively installed on both sides of the traveling direction of the photovoltaic cleaning robot body; when performing the photovoltaic component cleaning operation, the motor drive modules 4 of the two are started, and the output shaft of the corresponding motor drive module 4 rotates, driving the corresponding drive gear 3 to rotate synchronously, and the corresponding drive gear 3 drives the corresponding first gear 11 and the third gear 12 to rotate synchronously through the corresponding second idler gear 6; wherein, while the third gear 12 on the active gear transmission drive device rotates, it drives the brush shaft 100 to rotate synchronously, and the brush shaft 100 drives the gear shaft of the first gear assembly 1 on the driven gear transmission drive device to rotate synchronously, thereby realizing the driving of the brush shaft 100 on the photovoltaic cleaning robot. At the same time, the first gear 11 on the active gear transmission drive device and the driven gear transmission drive device sequentially drives the respective first idler gear 5 and the second gear 2 to rotate, thereby realizing the driving of the corresponding walking component 200.

[0085] By adopting this gear transmission drive device, the individual gears in the gear transmission system are small in size, lighter in weight, and have high manufacturing precision, which effectively reduces the problems of vibration, noise, poor lubrication, etc. during operation, and the transmission process is more stable. In addition, due to its low production difficulty, easy maintenance and replacement, and not easy to damage within the service life, it effectively reduces the relevant cost investment of enterprises and users, which is conducive to energy saving and cost reduction.

[0086] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A gear transmission drive device for a photovoltaic cleaning robot, the photovoltaic cleaning robot comprising a brush and a walking part, characterized in that: The gear transmission drive device comprises: shell; A first gear assembly, used for coaxial transmission connection with the brush; The second gear comprises two second gears, the two second gears are symmetrically arranged about a center line, and the two second gears are used for being coaxially connected to the corresponding traveling parts; the two second gears are connected to the first gear assembly through the first idler gear; A driving gear, wherein the driving gear is drivingly connected to the first gear assembly via a second idler gear, and the rotation centers of the driving gear, the second idler gear and the first gear assembly are located on the center line; A motor drive module, wherein the motor drive module has an output shaft that rotates around its own axis, and the output shaft of the motor drive module is coaxially connected to the driving gear, and is used to drive the two second gears to rotate synchronously while driving the first gear assembly to rotate, so as to simultaneously drive the brush and the walking part to rotate around their own axes respectively.

2. A gear transmission drive device for a photovoltaic cleaning robot according to claim 1, characterized in that: The first gear assembly includes a first gear and a third gear, the third gear and the first gear are coaxially arranged and spaced apart, and the two gears rotate synchronously; The third gear meshes with the first idler gear, and the first gear meshes with the second idler gear; A radius of the third gear is smaller than a radius of the first gear.

3. The gear transmission drive device for a photovoltaic cleaning robot according to claim 2, characterized in that: The first idler gear, the two second gears and the third gear are all located in a first vertical plane; The driving gear, the second idler gear and the first gear are all located in a second vertical plane, and the first vertical plane is closer to the brush relative to the second vertical plane.

4. The gear transmission drive device for a photovoltaic cleaning robot according to claim 1, characterized in that: The first idler wheels include a plurality of wheels, and the radii of the plurality of first idler wheels are the same; And / or, the second idler gear includes a plurality of gears; and the radii of the driving gear, the plurality of second idler gears and the first gear increase one by one along the power transmission direction.

5. A gear transmission drive device for a photovoltaic cleaning robot according to any one of claims 1 to 4, characterized in that: The housing comprises a first shell and a second shell, and the first shell and the second shell are detachably fixedly buckled along the axial direction of the driving gear; The first gear assembly, the second gear, the driving gear, the first idler gear and the second idler gear are all installed in the housing and rotate relative to the housing around their own axes respectively; The motor drive module is installed on the housing, and its output shaft extends into the housing and is coaxially connected with the driving gear.

6. The gear transmission drive device for a photovoltaic cleaning robot according to claim 5, characterized in that: The driving gear comprises a hollow gear shaft, which is coaxially sleeved on the output shaft of the motor driving module and detachably connected to the output shaft of the motor driving module around its own axis; both ends of the hollow gear shaft are rotatably arranged on the housing through bearings.

7. The gear transmission drive device for a photovoltaic cleaning robot according to claim 2, characterized in that: The first gear assembly also includes a gear shaft, and the first gear and the third gear are coaxially fixed on the gear shaft; the side of the third gear axially away from the first gear is coaxially connected to the brush.

8. The gear transmission drive device for a photovoltaic cleaning robot according to claim 2, characterized in that: The first gear assembly further comprises a gear shaft and a sleeve coaxially sleeved on the gear shaft, the sleeve rotates relative to the gear shaft around its own axis, and the first gear and the third gear are coaxially fixed on the sleeve; One end of the gear shaft close to the third gear is coaxially connected to the brush.

9. A photovoltaic cleaning robot, characterized in that: include: The gear transmission drive device for the photovoltaic cleaning robot as described in claim 8 above, wherein the gear transmission drive device comprises two; The machine body, the two gear transmission drive devices are respectively installed on both sides of the machine body in the direction of its own travel; A brush, wherein the two gear transmission drive devices are respectively connected to the two ends of the brush, and the axial direction of the brush is perpendicular to the traveling direction of the machine body; Traveling parts, any one of the gear transmission driving devices corresponds to two of the traveling parts, the rotating shafts of the two traveling parts are arranged in parallel and at intervals, and are both parallel to the axis of the brush, and the two traveling parts are symmetrically arranged about the axis of the brush.

10. A photovoltaic cleaning robot according to claim 9, characterized in that: The two gear transmission drive devices include a driving gear transmission drive device and a driven gear transmission drive device. The first gear assembly of the driving gear transmission drive device includes a gear shaft, and the first gear and the third gear are coaxially fixed on the gear shaft; the first gear assembly of the driven gear transmission drive device includes a gear shaft and a sleeve sleeved on the gear shaft, and the first gear and the third gear are coaxially fixed on the sleeve.

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