Speed reducer and flexible tracking support system

Abstract

The utility model discloses a speed reducer and a flexible tracking support system, and relates to the technical field of speed reducers. The female shaft is rotationally connected into the shell through a first bearing, and the female shaft is used for being connected with the side main beam and an output shaft of the motor; the secondary shaft is rotationally connected into the primary shaft through a second bearing and is used for being connected with an edge pulling anchor; and the third bearing is sleeved outside the secondary shaft, one side of the third bearing is contacted with the end part of the primary shaft, and the other side of the third bearing is contacted with the step part of the secondary shaft. The utility model has the technical effects that additional load is not easy to generate to the side upright post or the mounting node of the speed reducer, meanwhile, the shell of the speed reducer is prevented from generating additional overturning moment, and the structural safety is good.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a reducer and a flexible tracking bracket system. Background Art

[0002] The flexible tracking bracket system is a system used to carry photovoltaic modules and maintain elastic deformation when the photovoltaic modules are subjected to wind pressure and heavy loads. It has the advantage of good load-bearing performance.

[0003] The reducer is an important component of the flexible tracking support system, which is mainly used to reduce speed and increase torque. At the same time, the relevant flexible tracking support system generally increases stability by setting side anchors, but the side anchors are generally fixed on the side columns or the installation nodes of the reducer, which is easy to generate additional loads on the side columns or the installation nodes of the reducer, thereby causing waste and complexity of the installation nodes of the reducer. At the same time, the housing of the reducer is easily subjected to additional overturning torque from the load-bearing cables. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a reducer and a flexible tracking bracket system, which is not easy to generate additional loads on the side columns or the installation nodes of the reducer, and at the same time avoids additional overturning torque on the housing of the reducer, and has good structural safety.

[0005] In order to solve the above problems, the technical solution provided by the utility model is:

[0006] A reducer, comprising:

[0007] case;

[0008] A female shaft rotatably connected to the housing through a first bearing, the female shaft being used to be connected to both the side main beam and the output shaft of the motor;

[0009] A sub-shaft rotatably connected to the mother shaft via a second bearing, the sub-shaft being used to connect to the side anchor;

[0010] A third bearing is sleeved on the outside of the sub-shaft, one side of the third bearing contacts the end of the mother shaft, and the other side of the third bearing contacts the step portion of the sub-shaft.

[0011] Optionally, the mother shaft includes a rotating part and a non-rotating part connected to each other, the rotating part is rotatably connected to the shell through the first bearing, the non-rotating part is used to connect to the side main beam, the rotating part is used to connect to the output shaft of the motor, the sub-shaft is rotatably connected to the rotating part through the second bearing, and one side of the third bearing is in contact with the end of the rotating part.

[0012] Optionally, the rotating part and the non-rotating part are connected by integral casting or welding.

[0013] Optionally, a gear assembly is further included, one end of the gear assembly is connected to the mother shaft, and the other end of the gear assembly is used to connect to the output shaft of the motor.

[0014] Optionally, the number of the first bearings is two, and the two first bearings are axially symmetrically arranged with respect to the gear assembly.

[0015] Optionally, the housing comprises:

[0016] Shell body;

[0017] A first end cover detachably connected to one end of the shell body, wherein the first end cover is sleeved outside the sub-shaft;

[0018] A second end cover is detachably connected to the other end of the shell body, and the second end cover is sleeved outside the female shaft.

[0019] Optionally, the housing further comprises:

[0020] An auxiliary cover sleeved inside the shell body, the auxiliary cover sleeved outside the sub-shaft, the auxiliary cover in contact with the end of the mother shaft;

[0021] A tightening member is sleeved on the outside of the sub-shaft, and the tightening member is located between the first end cover and the auxiliary cover.

[0022] A flexible tracking support system includes a reducer.

[0023] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0024] 1) The sub-shaft is used to connect with the side anchor, which is equivalent to the connection between the side anchor and the rotation center of the reducer, so as to avoid the side anchor being fixed on the installation node of the side column or the reducer (i.e. the installation connection between the reducer and the side column, side main beam and other components), and it is not easy to generate additional load on the installation node of the side column or the reducer, thereby preventing the waste and complexity of the installation node of the reducer;

[0025] 2) The force from the load-bearing cable passes through the side main beam, the mother shaft and the sub-shaft in turn, and finally is transmitted to the supporting foundation, but not through the shell, so as to avoid the additional overturning moment of the reducer shell, and the structural safety is good;

[0026] 3) The reducer adopts the design of sub-shaft and mother shaft, which can be installed in the factory, which can not only reduce the amount of engineering work on the construction site, but also improve the installation quality of the reducer;

[0027] 4) The mother shaft adopts single-side output, which is beneficial to reduce the cost of the mother shaft;

[0028] 5) The sub-axis is an integrated structure, which is easy to process;

[0029] 6) The sub-shaft and the main shaft are connected by a thrust bearing, which can bear a large axial force with low friction and will not increase the motor power. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the structure of a reducer proposed in an embodiment of the utility model;

[0031] Figure 2 for Figure 1 Cross-sectional view of AA in the middle;

[0032] Figure 3 An exploded diagram of a reducer proposed in an embodiment of the utility model;

[0033] Figure 4 This is one of the partial structural schematic diagrams of a flexible tracking support system proposed in an embodiment of the utility model;

[0034] Figure 5 The second partial structural diagram of a flexible tracking support system proposed in an embodiment of the utility model;

[0035] In the figure: 11, first bearing; 12, second bearing; 13, third bearing; 14, housing; 141, first end cover; 142, second end cover; 143, housing body; 144, auxiliary cover; 145, tightening member; 15, mother shaft; 151, rotating part; 152, non-rotating part; 16, sub-shaft; 161, step part; 17, second gear; 2, output shaft; 31, side column; 32, side anchor; 33, side main beam; 34, load-bearing cable; 4, supporting foundation. DETAILED DESCRIPTION

[0036] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0037] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It should also be noted that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings. The words "first", "second", etc. described in the present utility model are set for the convenience of describing the technical solution of the present utility model, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present utility model. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments in the present application can be combined with each other. In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not have contradictions or conflicts, all of which are within the scope of protection required by the present utility model.

[0038] Example 1

[0039] Combined with Figure 1-5 , this embodiment provides a reducer, including:

[0040] Housing 14;

[0041] The mother shaft 15 is rotatably connected to the housing 14 through the first bearing 11, and the mother shaft 15 is used to be connected to the side main beam 33 and the output shaft 2 of the motor;

[0042] A sub-shaft 16 rotatably connected to the mother shaft 15 via a second bearing 12, and the sub-shaft 16 is used to connect to the side anchor 32;

[0043] The third bearing 13 is sleeved on the outside of the sub-shaft 16 , and one side of the third bearing 13 contacts the end of the mother shaft 15 , and the other side of the third bearing 13 contacts the step portion 161 of the sub-shaft 16 .

[0044] Specifically, during operation, the output shaft 2 of the motor drives the mother shaft 15 to rotate, and the mother shaft 15 drives the side main beam 33 to rotate; wherein, the housing 14 is used to carry the first bearing 11, the mother shaft 15, etc.; the first bearing 11 is used to realize the relative rotation between the mother shaft 15 and the housing 14, and the first bearing 11 is mainly used to bear radial loads. The first bearing 11 can be an angular contact ball bearing, a tapered roller bearing, etc., preferably an angular contact ball bearing; the second bearing 12 is used to realize the relative rotation between the mother shaft 15 and the sub-shaft 16, and the second bearing 12 is mainly used to bear radial loads. The second bearing 12 can be an angular contact ball bearing, a tapered roller bearing, etc., preferably an angular contact ball bearing; the third bearing 13 is used to bear the mutual axial force between the step portion 161 of the sub-shaft 16 and the end of the mother shaft 15, thereby reducing the mutual axial friction between the sub-shaft 16 and the mother shaft 15, and the third bearing 13 is preferably a thrust bearing; the sub-shaft 16 is used to connect with the side anchor 32, which is equivalent to the connection between the side anchor 32 and the rotation center of the reducer, so as to avoid the side anchor 32 being fixed on the side column 31 or the installation node of the reducer (that is, the installation connection between the reducer and the side column 31, the side main beam 33 and other components), and it is not easy to generate additional load on the installation node of the side column 31 or the reducer, thereby preventing the installation node of the reducer from being wasted and complicated. At the same time, the reducer adopts the design of the sub-shaft 16 and the mother shaft 15, which can be installed in the factory, which can not only reduce the amount of engineering work on the construction site, but also make the installation quality of the reducer good, and the force from the load-bearing cable 34 passes through the side main beam 33, the mother shaft 15 and the sub-shaft 16 in turn, and is finally transmitted to the supporting foundation 4 without passing through the shell 14, so as to avoid the shell 14 of the reducer from generating additional overturning torque, and the structural safety is good.

[0045] Further, such as Figure 2-3 The mother shaft 15 includes a rotating part 151 and a non-rotating part 152 that are connected to each other. The rotating part 151 is rotatably connected to the housing 14 through the first bearing 11. The non-rotating part 152 is used to connect to the side main beam 33. The rotating part 151 is used to connect to the output shaft 2 of the motor. The sub-shaft 16 is rotatably connected to the rotating part 151 through the second bearing 12. One side of the third bearing 13 is in contact with the end of the rotating part 151.

[0046] Specifically, the rotating part 151 facilitates the connection between one end of the mother shaft 15 and the inner ring of the first bearing 11, and the cross-sectional shape of the rotating part 151 is preferably circular; the non-rotating part 152 facilitates the connection between the other end of the mother shaft 15 and the side main beam 33, and prevents the other end of the mother shaft 15 and the side main beam 33 from relative rotation, and the cross-sectional shape of the non-rotating part 152 can be a square with rounded corners, an ellipse, etc.

[0047] Further, such as Figure 2-3The connection between the rotating part 151 and the non-rotating part 152 is an integral casting connection or welding.

[0048] Specifically, the integral casting connection facilitates good integrity of the connection between the rotating portion 151 and the non-rotating portion 152 ; and welding facilitates good firmness of the connection between the rotating portion 151 and the non-rotating portion 152 .

[0049] Further, such as Figure 2-3 , and also includes a gear assembly, one end of the gear assembly is connected to the mother shaft 15, and the other end of the gear assembly is used to connect to the output shaft 2 of the motor.

[0050] Specifically, the gear assembly is used to achieve transmission connection between the output shaft 2 of the motor and the mother shaft 15. The gear assembly may specifically include a first gear connected to the output shaft 2 of the motor and a second gear 17 connected to the rotating portion 151 of the mother shaft 15, and the first gear and the second gear 17 are meshed with each other.

[0051] Further, such as Figure 2 There are two first bearings 11, and the two first bearings 11 are axially symmetrically arranged with respect to the gear assembly.

[0052] Specifically, it is convenient to increase the force symmetry of the housing 14 and the mother shaft 15 .

[0053] Further, such as Figure 2-3 , the housing 14 comprises:

[0054] Shell body 143;

[0055] A first end cover 141 detachably connected to one end of the shell body 143 , the first end cover 141 being sleeved outside the sub-shaft 16 ;

[0056] The second end cover 142 is detachably connected to the other end of the shell body 143 , and the second end cover 142 is sleeved on the outside of the female shaft 15 .

[0057] Specifically, the shell body 143 is used to accommodate the sub-shaft 16 , the mother shaft 15 , etc.; the first end cover 141 and the second end cover 142 are used together to close the shell body 143 .

[0058] Further, such as Figure 2-3 , the housing 14 further comprises:

[0059] An auxiliary cover 144 is sleeved in the shell body 143, and the auxiliary cover 144 is sleeved outside the sub-shaft 16, and the auxiliary cover 144 is in contact with the end of the mother shaft 15;

[0060] The pressing member 145 is sleeved on the outside of the sub-shaft 16 , and the pressing member 145 is located between the first end cover 141 and the auxiliary cover 144 .

[0061] Specifically, the auxiliary cover 144 is used to exert a certain limiting effect on the mother shaft 15 , but does not affect the rotation of the mother shaft 15 ; the pressing member 145 is used to limit the positions of the first end cover 141 and the auxiliary cover 144 .

[0062] Example 2

[0063] Combined with Figure 1-5 , this embodiment provides a flexible tracking bracket system, including a reducer as in Example 1.

[0064] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A reducer, characterized in that: include: case; A female shaft rotatably connected to the housing through a first bearing, the female shaft being used to be connected to both the side main beam and the output shaft of the motor; A sub-shaft rotatably connected to the mother shaft via a second bearing, the sub-shaft being used to connect to the side anchor; A third bearing is sleeved on the outside of the sub-shaft, one side of the third bearing contacts the end of the mother shaft, and the other side of the third bearing contacts the step portion of the sub-shaft.

2. A reducer according to claim 1, characterized in that: The mother shaft includes a rotating part and a non-rotating part that are connected to each other. The rotating part is rotatably connected to the housing through the first bearing, the non-rotating part is used to be connected to the side main beam, and the rotating part is used to be connected to the output shaft of the motor. The sub-shaft is rotatably connected to the rotating part through the second bearing, and one side of the third bearing is in contact with the end of the rotating part.

3. A reducer according to claim 2, characterized in that: The rotating part and the non-rotating part are connected by integral casting or welding.

4. A reducer according to any one of claims 1 to 3, characterized in that: It also includes a gear assembly, one end of which is connected to the mother shaft, and the other end of which is used to be connected to the output shaft of the motor.

5. A reducer according to claim 4, characterized in that: The number of the first bearings is two, and the two first bearings are arranged axially symmetrically with respect to the gear assembly.

6. A reducer according to any one of claims 1 to 3, characterized in that: The housing comprises: Shell body; A first end cover detachably connected to one end of the shell body, wherein the first end cover is sleeved outside the sub-shaft; A second end cover is detachably connected to the other end of the shell body, and the second end cover is sleeved outside the female shaft.

7. A reducer according to claim 6, characterized in that: The housing further comprises: An auxiliary cover sleeved inside the shell body, the auxiliary cover sleeved outside the sub-shaft, the auxiliary cover in contact with the end of the mother shaft; A tightening member is sleeved on the outside of the sub-shaft, and the tightening member is located between the first end cover and the auxiliary cover.

8. A flexible tracking support system, characterized in that: It comprises a reducer as described in any one of claims 1 to 7.

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