Power assembly and photovoltaic tracking system

Abstract

The utility model relates to the technical field of transmission structures, in particular to a power assembly and a photovoltaic tracking system.The power assembly comprises a transmission assembly and a motor, the transmission assembly comprises a fixed part and a movable part, and the motor drives the movable part to rotate relative to the fixed part; the quick-release structure is used for connecting the motor with the transmission assembly and comprises a first limiting piece, a second limiting piece, a second limiting piece and a third limiting piece, the first limiting piece is connected with a fixing piece of the power assembly, and a first matching part is arranged on the first limiting piece; the second limiting piece is connected with a motor body of the motor, and a second matching part used for being matched with the first matching part is arranged on the second limiting piece; the second limiting piece and the first limiting piece are matched through the first matching part and the second matching part, and the shell of the motor is limited not to rotate relative to the fixing piece. The power assembly has the advantages that the motor can be conveniently and quickly disassembled and assembled, the processing cost of the power assembly is reduced, and meanwhile, the safety and the reliability of the power assembly are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission structures, and particularly relates to a power assembly and a photovoltaic tracking system. Background Art

[0002] Transmission structures are widely used in the mechanical field. Reducers, brakes, clutches, etc. are all relatively common transmission structures. A transmission structure includes a fixed part and a movable part, and the movable part is driven by a power source to move relative to the fixed part. In the prior art, an electric motor is usually used as the power source.

[0003] When using an electric motor as the power source in the existing technology, the body of the electric motor is usually locked to the fixed part in the transmission structure by bolts, and the output shaft of the electric motor is connected to the movable part by means of a coupling, a key, etc. The connection method is relatively complex and not convenient for installation or disassembly. How to improve the convenience of installation or disassembly between the electric motor and the transmission structure to quickly install the electric motor on the transmission structure or disassemble it from the transmission structure is a problem that needs to be solved urgently at present. Summary of the Utility Model

[0004] The first object of the utility model is to provide a power assembly to solve the problem that the electric motor in the existing power assembly is not convenient for installation or disassembly. The second object of the utility model is to provide a photovoltaic tracking system.

[0005] The implementation of the utility model is completed by the following technical solutions:

[0006] As the first aspect of the utility model, a power assembly includes a transmission component and an electric motor. The transmission component includes a fixed part and a movable part, and the electric motor drives the movable part to rotate relative to the fixed part;

[0007] It further includes a quick-release structure for connecting the electric motor and the transmission component. The quick-release structure includes:

[0008] A first limiting member, connected to the fixed part of the power assembly, and a first mating portion is provided on the first limiting member;

[0009] A second limiting member, connected to the body of the electric motor, and a second mating portion for mating with the first mating portion is provided on the second limiting member;

[0010] The second limiting member and the first limiting member limit the outer shell of the electric motor from rotating relative to the fixed part through the cooperation of the first mating portion and the second mating portion;

[0011] When the first limiting member and the second limiting member are in a mating state, the output shaft of the electric motor is in transmission connection with the movable part.

[0012] Optionally, an end of the movable member near the motor is provided with a socket for mating with the output shaft of the motor, and the output shaft of the motor is inserted into the socket so that the movable member and the output shaft are in driving connection.

[0013] Optionally, the power assembly further includes an intermediate member, and the movable member and the output shaft of the motor are in driving connection through the intermediate member. One end of the intermediate member is connected to the end of the movable member near the motor, and the other end of the intermediate member is connected to the output shaft of the motor.

[0014] Optionally, one end of the intermediate member is provided with a first socket, and an end of the movable member near the motor is provided with a first insertion portion that mates with the first socket; the other end of the intermediate member is provided with a second socket for mating with the output shaft of the motor.

[0015] Optionally, a first through hole is provided on the side wall of the first socket, and the first through hole extends from the inner wall surface of the side wall of the first socket along the radial direction of the first socket to the outer surface of the intermediate member, or a second through hole is provided on the side wall of the second socket, and the second through hole extends from the inner wall surface of the side wall of the second socket along the radial direction of the second socket to the outer surface of the intermediate member.

[0016] Optionally, the first mating portion is a groove and / or a protrusion provided on the first limiting member, and the second mating portion is a protrusion and / or a groove provided on the second limiting member.

[0017] Optionally, the first mating portion is a claw provided on the first limiting member, and the second mating portion is a claw groove provided on the second limiting member.

[0018] Optionally, a protective cylinder is further included, the motor is placed inside the protective cylinder, and the protective cylinder is connected to the end of the fixing member near the motor.

[0019] Optionally, the protective cylinder includes a limiting portion, and the limiting portion is detachably connected to the end of the protective cylinder away from the fixing member;

[0020] The power assembly further includes an elastic member, and the end of the motor away from the movable member is in abutment with the protective cylinder through the elastic member.

[0021] As the second aspect of the present invention, a photovoltaic tracking system includes the power assembly as described above.

[0022] The advantages of the present invention are: facilitating the quick disassembly and installation of the motor, reducing the processing cost of the power assembly, and at the same time increasing the safety and reliability of the power assembly.

[0023] First, through the cooperation of the first limiting member and the second limiting member, it is realized that the body of the motor is non-rotatable relative to the fixed member. When the two cooperate, the output shaft of the motor is in transmission connection with the movable member in the transmission assembly, realizing the connection of the motor and the transmission assembly without bolts or other connecting members. Therefore, the installation method is simple and fast, convenient for operation. When the motor needs to be maintained or replaced, it is only necessary to release the cooperation between the first limiting member and the second limiting member, and the transmission connection between the output shaft of the motor and the movable member can be released at the same time. Therefore, it is also simple and fast to disassemble the motor from the transmission assembly, convenient for operation.

[0024] Second, through the intermediate member, one end of the intermediate member is detachably connected to the movable member, and the other end is detachably connected to the output shaft of the motor. Under the action of the intermediate member, the end of the output shaft of the motor and the movable member for connecting the output shaft of the motor do not need special processing, and can be quickly connected and separated through the intermediate member, reducing the processing procedures for machining the end of the output shaft of the motor or the movable member for connecting the output shaft of the motor, thereby reducing the processing cost.

[0025] Third, by providing a protective cylinder, the motor is placed inside the protective cylinder, avoiding hitting the motor due to mistakes such as misoperation, ensuring the safety of the power assembly of the present application; further, especially when the power assembly proposed in the present application is used in an outdoor environment, it can also avoid the influence of rain, snow, dust, etc. on the motor, not only ensuring the safety of the power assembly of the present application, but also ensuring the service life of the motor.

[0026] Fourth, further, the protective cylinder can also assist in restricting the axial position of the motor relative to the transmission assembly, that is, further ensuring the transmission connection between the output shaft of the motor and the movable member, and the cooperation between the first limiting member and the second limiting member, improving the safety and reliability of the power assembly proposed in the present application.

[0027] Fifth, a detachable limiting part is provided on the protective cylinder, which is convenient to open the protective cylinder through the installation position of the limiting part to observe, disassemble or install the motor; further, when an elastic member is provided, the limiting part and the motor are in abutment through the elastic member, which also reduces the processing difficulty of the protective cylinder, thereby further reducing the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following drawings detail the exemplary embodiments disclosed in the present application. Wherein the same reference numerals represent similar structures in several views of the drawings. Those of ordinary skill in the art will understand that these embodiments are non-limiting, exemplary embodiments, and the drawings are only for the purpose of illustration and description, and are not intended to limit the scope of the present application. Embodiments in other ways may also equally achieve the application intention in the present application. It should be understood that the drawings are not drawn to scale. Among them:

[0029] Figure 1 Schematic diagram of the powertrain in an embodiment of the present application;

[0030] Figure 2 Exploded schematic diagram of the powertrain from the first perspective in an embodiment of the present application;

[0031] Figure 3 is Figure 2 Schematic diagram at position A in

[0032] Figure 4 Exploded schematic diagram of the powertrain from the second perspective in an embodiment of the present application;

[0033] Figure 5 is Figure 4 Schematic diagram at position B in

[0034] Figure 6 is Figure 1 Exploded schematic diagram of the limiting member in

[0035] Each mark in the figure is respectively:

[0036] 1. Transmission assembly; 11. Fixing member; 12. Movable member; 121. First plugging portion; 13. Protection cylinder; 131. Limiting portion; 2. Motor; 21. Output shaft; 3. Quick-release structure; 31. First limiting member; 311. First mating portion; 32. Second limiting member; 321. Second mating portion; 4. Intermediate member; 41. First plugging opening; 42. First through hole; 43. Second through hole; 44. Second plugging opening. Detailed implementation manners

[0037] To make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present application without creative efforts belong to the scope of protection of the present application. It can be understood that, without conflict, some technical means described in the various embodiments herein may be replaced or combined with each other.

[0038] In the description of the present application, if there are terms such as "first", "second", etc., they are only used to distinguish the described objects and do not have any sequential or technical meanings. Thus, the objects defined with "first", "second", etc. may explicitly or implicitly include one or more of such objects. And, words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one, and "multiple" means not less than two.

[0039] In the description of the present application, if there are terms such as "connection", "abutment", "installation", "fixation", "contact", "support", "accommodation", etc., they should all be understood in a broad sense. For example, "connection" can be a separable connection or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a non-detachable connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can also be the communication inside two components or the interaction relationship between two components. For another example, "abutment" can be a direct abutment or an indirect abutment through an intermediate medium. For another example, "accommodation" does not necessarily mean that the whole is completely accommodated, and this concept also includes the situation of partial accommodation where a part protrudes outside. For those skilled in the art, the specific meanings of the foregoing terms in the present application can be understood according to specific circumstances.

[0040] In the description of the present application, if there are similar expressions such as "A is connected to B in a rotatable manner", it means that A is directly or indirectly connected to B, and A can rotate relative to B.

[0041] In the description of the specification of the present application, referring to "one embodiment" or "some embodiments", etc. means that in one or more embodiments of the present application, specific features, structures or characteristics described in connection with that embodiment are included. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0042] As the first aspect of this embodiment, as Figures 1 to 4 shown, a powertrain is disclosed, including a transmission assembly 1 and a motor 2. The transmission assembly 1 includes a fixed member 11 and a movable member 12, and the motor 2 drives the movable member 12 to rotate relative to the fixed member 11;

[0043] It further includes a quick-release structure 3 for connecting the motor 2 and the transmission assembly 1. The quick-release structure 3 includes:

[0044] A first limiting member 31, connected to the fixed member 11 of the powertrain, and a first mating portion 311 is provided on the first limiting member 31;

[0045] A second limiting member 32, connected to the body of the motor 2, and a second mating portion 321 for mating with the first mating portion 311 is provided on the second limiting member 32;

[0046] The second limiting member 32 and the first limiting member 31 cooperate through the first engaging portion 311 and the second engaging portion 321 to limit the housing of the motor 2 from rotating relative to the fixing member 11;

[0047] When the first limiting member 31 and the second limiting member 32 are in a cooperating state, the output shaft 21 of the motor 2 is in driving connection with the movable member 12.

[0048] As Figure 2 and Figure 3 shown, it should be noted that the implementation manners of the driving connection between the output shaft 21 of the motor 2 and the movable member 12 include but are not limited to the following several manners:

[0049] The first manner, as an implementation manner of this embodiment, directly forms a driving connection. For example, an insertion socket that cooperates with the output shaft 21 of the motor 2 is provided at the end of the movable member 12 near the motor 2, and the output shaft 21 of the motor 2 is inserted into the insertion socket, so that the movable member 12 and the output shaft 21 form a driving connection; this connection manner has a simpler and quicker structure.

[0050] The second manner, as another implementation manner of this embodiment, forms a driving connection through an intermediate member 4. For example, the power assembly further includes an intermediate member 4, and the movable member 12 and the output shaft 21 of the motor 2 are in driving connection through the intermediate member 4. One end of the intermediate member 4 is connected to the end of the movable member 12 near the motor 2, and the other end of the intermediate member 4 is connected to the output shaft 21 of the motor 2.

[0051] To realize the driving connection between the output shaft 21 of the motor 2 and the movable member 12 through the intermediate member 4, in this embodiment, a first insertion socket 41 is provided at one end of the intermediate member 4, and a first insertion portion 121 that cooperates with the first insertion socket 41 is provided at the end of the movable member 12 near the motor 2; a second insertion socket 44 is provided at the other end of the intermediate member 4, and the second insertion socket 44 is used to cooperate with the output shaft 21 of the motor 2; by connecting the intermediate member 4 to the movable member 12 and the output shaft 21 of the motor 2 respectively, the movable member 12 and the output shaft 21 of the motor 2 form a driving connection.

[0052] Further, to facilitate the connection between the middleware 4 and the output shaft 21 of the motor 2, a first through hole 42 is provided on the side wall of the first insertion interface 41. The first through hole 42 extends from the inner wall surface of the side wall of the first insertion interface 41 along the radial direction of the first insertion interface 41 to the outer surface of the middleware 4. During use, first, the output shaft 21 of the motor 2 is inserted into the second insertion interface 44, a connecting member such as a bolt or a screw is fixed in the first through hole 42, and the output shaft 21 of the motor 2 is abutted against by the bolt or the screw, so as to relatively fix the position of the output shaft 21 of the motor 2 relative to the middleware 4. Then, the second insertion interface 44 is sleeved on the output shaft 21.

[0053] Alternatively, a second through hole 43 can also be provided on the side wall of the second insertion interface 44. The second through hole 43 extends from the inner wall surface of the side wall of the second insertion interface 44 along the radial direction of the second insertion interface 44 to the outer surface of the middleware 4. During use, first, the first insertion portion 121 on the movable member 12 is inserted into the first insertion interface 41. Similarly, a connecting member such as a bolt or a screw is used to connect to the output shaft 21 through the second through hole 43, so as to relatively fix the position between the middleware 4 and the movable member 12. Then, the output shaft 21 of the motor 2 is inserted into the first insertion interface 41.

[0054] Through the above, in this embodiment, under the action of the middleware 4, the output shaft 21 of the motor 2 and the end of the movable member 12 for connecting the output shaft 21 of the motor 2 do not need to be specially processed, and the quick connection and separation can be completed through the middleware 4, reducing the processing procedures for the end of the output shaft 21 of the motor 2 or the end of the movable member 12 for connecting the output shaft 21 of the motor 2.

[0055] As Figures 1 to 3 shown, it should be noted that in this embodiment, the first limiting member 31 and the second limiting member 32 are matched through the first matching portion 311 and the second matching portion 321 to limit the non-rotatability of the housing of the motor 2 relative to the fixing member 11. The matching of the first matching portion 311 and the second matching portion 321 includes but is not limited to the following methods:

[0056] The first implementation method: a protrusion is formed on the end face of the first limiting member 31 near one end of the second limiting member 32, and a groove matching the protrusion is formed on the end face of the second limiting member 32 opposite to the first limiting member 31 or on the outer peripheral surface of the second limiting member 32; or, a groove is formed on the end face of the first limiting member 31 near one end of the second limiting member 32 or on the outer peripheral surface of the first limiting member 31, and a protrusion matching the groove is formed on the end face of the second limiting member 32 opposite to the first limiting member 31.

[0057] It should be noted that the purpose of the cooperation between the protrusion and the groove is to make the outer shell of the motor 2 non-rotatable relative to the fixing member 11. On the basis of meeting the function of the protrusion, the protrusion can be a tooth block, a polygon, a circle or a special shape, etc.

[0058] In the second embodiment, the first engaging portion 311 is a claw tooth provided on the first limiting member 31, and the second engaging portion 321 is a claw groove provided on the second limiting member 32. Obviously, through the cooperation of the claw tooth and the claw groove, the outer shell of the motor 2 can also be limited to be non-rotatable relative to the fixing member 11.

[0059] As Figures 1 to 4 shown, it should be noted that in this embodiment, in order to prevent the motor 2 from being exposed for a long time and reduce the service life of the motor 2, the power assembly further includes a protection cylinder 13. The motor 2 is placed inside the protection cylinder 13, and the protection cylinder 13 is connected to one end of the fixing member 11 near the motor 2. The protection cylinder 13 can prevent the motor 2 from contacting the outside world to increase the service life of the motor 2; the protection cylinder 13 can also be used to assist in restricting the axial position of the motor 2 relative to the transmission assembly 1 to improve the stability of the motor 2.

[0060] It should be noted that the connection method between the protection cylinder 13 and the fixing member 11 includes but is not limited to: the protection cylinder 13 and the fixing member 11 are connected by a flange and bolts, or directly connected by bolts, screws or rivets, etc.

[0061] As Figure 1 and Figure 4 shown, further, in this embodiment, in order to facilitate the opening of the protection cylinder 13, a limiting portion 131 can also be detachably connected to one end of the protection cylinder away from the fixing member 11. One end of the limiting portion 131 is detachably connected to the protection cylinder 13 by bolts, screws or rivets, etc., and the other end of the limiting portion 131 abuts against the motor 2.

[0062] It should be noted that in this embodiment, since mechanical processing usually generates certain errors, it may cause the protection cylinder 13 to affect the driving of the motor 2 due to excessive tight contact when assisting in restricting the axial position of the motor 2 relative to the transmission assembly 1, or affect the stability of the motor 2 due to too loose abutting force; to solve this problem, an elastic member is provided at the place where the protection cylinder 13 abuts against the motor 2. The elastic member can be at least one of a spring, a rubber block and a spring piece; under the action of the elastic member, the protection cylinder 13 is always kept in elastic abutment with the motor 2, reducing the processing difficulty of the protection cylinder 13 to reduce the processing cost.

[0063] The advantages of this embodiment are: it is convenient to quickly disassemble and install the motor 2, reduce the processing cost of the power assembly, and at the same time increase the safety and reliability of the power assembly.

[0064] First, through the cooperation of the first limiting member 31 and the second limiting member 32, it is realized that the body of the motor 2 is limited to be non-rotatable relative to the fixing member 11. When the two cooperate, the output shaft 21 of the motor 2 is in transmission connection with the movable member 12 in the transmission assembly 1. Thus, it is possible to connect the motor 2 to the transmission assembly 1 without using connecting members such as bolts. Therefore, the installation method is simple and fast, and convenient to operate. When the motor 2 needs to be maintained or replaced, it is only necessary to release the cooperation between the first limiting member 31 and the second limiting member 32, and the transmission connection between the output shaft 21 of the motor 2 and the movable member 12 can be released at the same time. Therefore, it is also simple and fast to disassemble the motor 2 from the transmission assembly 1, and convenient to operate.

[0065] Second, through the intermediate member 4, one end of the intermediate member 4 is detachably connected to the movable member 12, and the other end is detachably connected to the output shaft 21 of the motor 2. Under the action of the intermediate member 4, the end of the output shaft 21 of the motor 2 for connecting to the movable member 12 does not need special processing, and the quick connection and separation can be completed through the intermediate member 4, reducing the processing procedures for machining the end of the output shaft 21 of the motor 2 or the movable member 12 for connecting to the output shaft 21 of the motor 2, thereby reducing the processing cost.

[0066] Third, by providing the protective cylinder 13, the motor 2 is placed inside the protective cylinder 13, avoiding hitting the motor 2 due to mistakes such as misoperation, and ensuring the safety of the power assembly of the present application; further, especially when the power assembly proposed in the present application is used in an outdoor environment, it can also avoid the influence of rain, snow, dust, etc. on the motor 2, not only ensuring the safety of the power assembly of the present application, but also ensuring the service life of the motor 2.

[0067] Fourth, further, the protective cylinder 13 can also assist in restricting the axial position of the motor 2 relative to the transmission assembly 1, further ensuring the transmission connection between the output shaft 21 of the motor 2 and the movable member 12, and the cooperation between the first limiting member 31 and the second limiting member 32, improving the safety and reliability of the power assembly proposed in the present application.

[0068] Fifth, a detachable limiting portion 131 is provided on the protective cylinder 13, which is convenient to open the protective cylinder 13 through the installation position of the limiting portion 131 to observe, disassemble or install the motor 2; further, when an elastic member is provided, the limiting portion 131 and the motor 2 are in abutment through the elastic member, which also reduces the processing difficulty of the protective cylinder 13, thereby further reducing the processing cost.

[0069] As the second aspect of this embodiment, a photovoltaic tracking system includes the power assembly as described above.

Claims

1. A powertrain, characterized in that, It includes a transmission assembly and a motor. The transmission assembly includes a fixed part and a movable part, and the motor drives the movable part to rotate relative to the fixed part; It further includes a quick-release structure for connecting the motor to the transmission assembly. The quick-release structure includes: A first limiting part, connected to the fixed part of the power assembly, and a first mating part is provided on the first limiting part; A second limiting part, connected to the body of the motor, and a second mating part for mating with the first mating part is provided on the second limiting part; The second limiting part and the first limiting part limit the outer shell of the motor to be non-rotatable relative to the fixed part through the cooperation of the first mating part and the second mating part; When the first limiting part and the second limiting part are in a mating state, the output shaft of the motor is in transmission connection with the movable part.

2. The powertrain according to claim 1, characterized in that, An insertion port for cooperating with the output shaft of the motor is provided at the end of the movable part near the motor, and the output shaft of the motor is inserted into the insertion port, so that the movable part and the output shaft form a transmission connection.

3. The powertrain according to claim 1, characterized in that, It further includes an intermediate part. The movable part and the output shaft of the motor form a transmission connection through the intermediate part. One end of the intermediate part is connected to the end of the movable part near the motor, and the other end of the intermediate part is connected to the output shaft of the motor.

4. The powertrain according to claim 3, characterized in that, A first insertion port is provided at one end of the intermediate part, and a first insertion part for cooperating with the first insertion port is provided at the end of the movable part near the motor; a second insertion port is provided at the other end of the intermediate part, and the second insertion port is used for cooperating with the output shaft of the motor.

5. The powertrain according to claim 4, wherein A first through hole is provided on the side wall of the first insertion port. The first through hole extends from the inner wall surface of the side wall of the first insertion port along the radial direction of the first insertion port to the outer surface of the intermediate part, or a second through hole is provided on the side wall of the second insertion port. The second through hole extends from the inner wall surface of the side wall of the second insertion port along the radial direction of the second insertion port to the outer surface of the intermediate part.

6. The powertrain according to claim 1, characterized in that, The first mating part is a groove and / or a convex block provided on the first limiting part, and the second mating part is a convex block and / or a groove provided on the second limiting part.

7. The powertrain according to claim 1, characterized in that, The first mating part is a claw tooth provided on the first limiting part, and the second mating part is a claw groove provided on the second limiting part.

8. The powertrain according to any one of claims 1 to 7, characterized in that, It further includes a protection cylinder. The motor is placed in the protection cylinder, and the protection cylinder is connected to the end of the fixed part near the motor.

9. The powertrain according to claim 8, characterized in that, The protection cylinder includes a limiting part, and the limiting part is detachably connected to the end of the protection cylinder away from the fixed part; It further includes an elastic part. The end of the motor away from the movable part is abutted against the protection cylinder through the elastic part.

10. A photovoltaic tracking system, characterized in that, It includes the power assembly according to any one of claims 1-9.

Images