CN222315837U

CN222315837U - Transmission sleeve assembly, transmission assembly and solar device

Info

Publication number: CN222315837U
Application number: CN202421319490.7U
Authority: CN
Inventors: 高峰
Original assignee: Shanghai Xingye Material Technology Co Ltd
Current assignee: Shanghai Xingye Material Technology Co Ltd
Priority date: 2024-06-11
Filing date: 2024-06-11
Publication date: 2025-01-07
Anticipated expiration: 2034-06-11

Abstract

The utility model relates to the field of spiral transmission, and specifically to a transmission sleeve assembly, comprising a first sleeve, a second sleeve and a connecting assembly, wherein the outer circumference or inner circumference of the first sleeve and the second sleeve is provided with a thread with a consistent pitch; and further comprising a connecting assembly arranged between the first sleeve and the second sleeve. A transmission assembly is proposed based on the transmission sleeve assembly. Finally, a solar device is proposed based on the transmission assembly. The beneficial effect is that the stability of the transmission operation is improved while reducing the transmission clearance of the spiral spline.

Description

Transmission sleeve assembly, transmission assembly and solar device

Technical Field

The utility model relates to the field of spiral transmission, in particular to a transmission sleeve assembly, a transmission assembly and a solar device.

Background

The spiral transmission assembly comprises a transmission sleeve and an outer sleeve, wherein the outer circumferential surface of the transmission sleeve is provided with a spiral spline, the inner circumferential surface of the outer sleeve is provided with a spiral spline matched with the transmission sleeve, and the outer sleeve is sleeved on the transmission sleeve and has the same axis with the transmission sleeve. When the transmission sleeve moves linearly along the axis of the transmission sleeve, the outer sleeve rotates around the axis of the transmission sleeve through the cooperation of the inner spiral spline and the outer spiral spline.

In the aspect of processing the spiral spline, the processing of the external spiral spline of the transmission sleeve is usually easier, and the outer sleeve is difficult to achieve higher processing precision due to the fact that the spiral spline needs to be processed on the inner peripheral surface with limited space, so that a larger gap is generated by matching the transmission sleeve and the outer sleeve, and the gap can shake the transmission sleeve or the outer sleeve in the transmission of the spiral spline and further influence the motion state of a subsequent connecting part.

Therefore, how to design a structure capable of reducing the transmission gap between the transmission sleeve and the outer sleeve becomes a technical problem to be solved.

Disclosure of utility model

The utility model provides a transmission sleeve assembly for solving the problem of a transmission gap between a transmission sleeve and an outer cylinder, and further provides a transmission assembly according to the transmission sleeve, and a solar device provided by the transmission assembly.

As a first aspect of the present utility model, there is provided a transmission sleeve assembly comprising a first sleeve and a second sleeve coaxially arranged, the first sleeve and the second sleeve being provided with threads having a uniform pitch on an outer peripheral surface or an inner peripheral surface thereof;

The connecting assembly comprises a ring sleeve and a first elastic piece, wherein the ring sleeve is coaxially arranged between the first sleeve and the second sleeve, the first elastic piece is arranged at one end of the ring sleeve, a first clamping groove is formed in one end, close to the ring sleeve, of the first sleeve, and a second clamping groove is formed in one end, close to the ring sleeve, of the second sleeve;

The transmission sleeve assembly further comprises at least one first clamping piece and at least one second clamping piece, one end of the first clamping piece is connected with the first clamping groove, the other end of the first clamping piece is connected with the connecting assembly, one end of the second clamping piece is connected with the second clamping groove, and the other end of the first clamping piece is connected with the connecting assembly.

Preferably, the helix angle of the threads is greater than 0 degrees and less than 45 degrees.

Preferably, the first clamping piece and/or the second clamping piece are/is made of rigid materials, and are in a strip shape or a column shape.

Preferably, the first clamping piece and/or the second clamping piece are/is made of flexible materials.

Preferably, the inner peripheral surface of the transmission sleeve assembly is provided with a straight spline, and the inner peripheral surface of the ring sleeve is further provided with a mounting part for being connected with an external driving part.

Preferably, the threads are involute threads and/or the spur splines are involute splines.

Preferably, the connecting assembly further comprises a second elastic member, and the second elastic member is arranged at one end of the loop away from the first elastic member.

Preferably, the first elastic member and/or the second elastic member is a wave spring.

Preferably, the connecting assembly further comprises a first clamping ring and a second clamping ring coaxially arranged at two ends of the ring sleeve;

The first elastic piece is arranged between the annular sleeve and the first clamping ring, the first clamping ring is provided with a third clamping groove, the other end of the first clamping piece is connected with the third clamping groove, the second elastic piece is arranged between the annular sleeve and the second clamping ring, the second clamping ring is provided with a fourth clamping groove, and the other end of the second clamping piece is connected with the fourth clamping groove.

Preferably, the transmission sleeve assembly further comprises a protective sleeve, wherein the protective sleeve is sleeved on the ring sleeve and prevents the connecting piece from leaving the transmission sleeve assembly.

As a second aspect of the present utility model, a transmission assembly is provided, including the above-mentioned transmission sleeve, and further including a spline shaft, a screw rod, a screw nut, a lug and an outer cylinder, where the screw rod is in threaded connection with the screw nut, one end of the lug is connected with the screw nut, the other end is connected with the transmission sleeve assembly, the transmission sleeve assembly is sleeved on the spline shaft, and the outer cylinder is sleeved on the transmission sleeve.

As a third aspect of the present utility model, a solar device is provided, which includes the above-mentioned transmission assembly, and further includes a photovoltaic panel and a column, wherein the fixed end of the transmission assembly is connected with the column, and the moving end of the transmission assembly is connected with the photovoltaic panel.

The beneficial effects of the utility model are as follows:

1. Because the connecting component is provided with the elastic component, the transmission sleeve is affected by the elastic force when moving, so that the first sleeve is automatically far away from or close to the second sleeve within a limited range (similar to expansion and contraction), the intervention of operators is not needed, and the maintenance work is reduced. When external impact force is received, as the threads on the first sleeve and the second sleeve are respectively matched with different sides of the key groove, the external impact force is absorbed through the elastic piece, and the direct influence of the external impact force on each part of the transmission assembly is reduced.

2. In the embodiment that the transmission sleeve is simultaneously provided with threads and straight-tooth splines, the first sleeve and the second sleeve are far away or close to each other in a limited range under the action of elastic force and simultaneously relatively rotate, and as the transmission sleeve is further provided with the straight-tooth splines matched with the spline shaft, the straight-tooth splines in the transmission sleeve are propped against the spline shaft due to the relative rotation of the first sleeve and the second sleeve, the tightness of the matching of the threads and the straight-tooth splines can be further enhanced due to the propping action, so that the matching gap between the transmission sleeve and the spline shaft is further reduced, and the working stability of the transmission assembly is enhanced.

Drawings

Fig. 1 is an isometric view of a first transmission sleeve assembly according to the present embodiment.

Fig. 2 is a schematic front view of the drive sleeve assembly of fig. 1.

Fig. 3 is a side view schematic of the drive sleeve assembly of fig. 1.

Fig. 4 is a schematic cross-sectional view at A-A in fig. 3.

Fig. 5 is an isometric view of a second transmission sleeve assembly according to the present embodiment.

Fig. 6 is an end elevational schematic view of the transmission sleeve assembly of fig. 5.

Fig. 7 is an isometric view of a transmission assembly according to the present embodiment.

Fig. 8 is an exploded view of the transmission assembly proposed in the present embodiment.

Wherein:

1. A drive sleeve assembly;

11. 111, a first clamping groove;

12. a second sleeve;

13. A connection assembly; 131, a loop, 132, a first elastic piece, 133, a second elastic piece, 134, a first clamping ring, 1341, a third clamping groove, 135 and a second clamping ring;

14. A thread;

15. a spur spline;

16. A first clamping piece;

17. a second clamping piece;

2. The device comprises an outer cylinder, a spline shaft, a screw rod nut, a lug plate and a lug plate.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings.

As a first aspect of this embodiment, a transmission sleeve assembly 1 is provided, which includes a first sleeve 11 and a second sleeve 12 coaxially disposed, wherein the outer circumferential surface or the inner circumferential surface of the first sleeve 11 and the second sleeve 12 are provided with threads 14 having identical pitches, the transmission sleeve assembly further includes a connection assembly 13 disposed between the first sleeve 11 and the second sleeve 12, the connection assembly 13 includes a collar 131 and a first elastic member 132, the collar 131 is coaxially disposed between the first sleeve 11 and the second sleeve 12, the first elastic member 132 is disposed at one end of the collar 131, one end of the first sleeve 11 adjacent to the collar 131 is provided with a first clamping groove 111, one end of the second sleeve 12 adjacent to the collar 131 is provided with a second clamping groove, the transmission sleeve assembly 1 further includes at least one first clamping member 16 and at least one second clamping member 17, one end of the first clamping member 16 is connected with the first clamping groove 111, the other end of the first clamping member 16 is connected with the connection assembly 13, one end of the second clamping member 17 is connected with the second clamping groove, and the other end of the first clamping member 16 is connected with the connection assembly 13.

Regarding the first sleeve 11 and the second sleeve 12, when the threads 14 are arranged on the outer circumferential surface of the first sleeve 11 or the inner circumferential surface of the second sleeve 12, the threads 14 are correspondingly arranged on the outer circumferential surface of the second sleeve 12, or when the threads 14 are correspondingly arranged on the inner circumferential surface of the first sleeve 11, the threads 14 are correspondingly arranged on the inner circumferential surface of the second sleeve 12, and when one end of the first sleeve 11 is abutted against one end of the second sleeve 12 and the two are coaxially arranged, the threads 14 arranged on the first sleeve 11 and the threads 14 arranged on the second sleeve 12 are positioned on the same spiral curve, namely, when the transmission sleeve assembly 1 is in a static state which is not connected with an external part, a certain distance is reserved between the threads 14 on the first sleeve 11 and the second sleeve 12, and when the transmission sleeve assembly 1 is used, the threads 14 on the two circumferential surfaces are not continuous, but have a certain dislocation, and when the transmission sleeve assembly 1 is used, the screw assembly 14 and the threads 14 on the first sleeve 11 and the second sleeve 12 are in a tight fit with the external part, thus the transmission precision is reduced, and the transmission requirements are met, and the transmission precision is tightly matched with the screw assembly.

In most embodiments, the inner diameter or the outer diameter of the first sleeve 11 and the second sleeve 12 are identical, wherein the inner diameter or the outer diameter is related to the arrangement position of the threads 14, the threads 14 can be understood as a combination of protrusions and depressions, and when the threads 14 are arranged on the inner circumferential surface of the first sleeve 11, the inner diameter of the first sleeve 11 refers to the distance from the center of the circle to the depression of the threads 14 on the radial cross section of the axis of the first sleeve 11. When the thread 14 is provided on the outer peripheral surface of the first sleeve 11, the outer diameter of the first sleeve 11 refers to the distance from the center of the circle to the recess of the thread 14 on the radial cross section of the axis of the first sleeve 11. The second sleeve 12 is also true.

If the screw thread 14 is provided on the inner circumferential surfaces of the first sleeve 11 and the second sleeve 12, the driving sleeve assembly 1 is usually used for driving connection with a screw, and accordingly, the first sleeve 11 and the second sleeve 12 can be respectively connected with the screw in a driving manner, and the inner diameters of the first sleeve 11 and the second sleeve 12 are consistent. In contrast, in the embodiment of the two driving sleeve assemblies 1 shown in fig. 1 and 5, the first sleeve 11 and the second sleeve 12 can be in driving connection with the outer cylinder 2 with the matched screw threads 14 outside, the screw threads 14 are arranged on the outer peripheral surfaces of the first sleeve 11 and the second sleeve 12, and then the outer diameters of the first sleeve 11 and the second sleeve 12 are consistent.

The helix angle is the angle of the drive sleeve assembly 1 axis to the tangent of the thread 14, in some embodiments, the helix angle of the thread 14 is greater than 0 degrees and less than 45 degrees, where the thread 14 may be understood as a helical spline. Further, in the embodiment in which the helix angle of the threads 14 is 13 degrees, only a relatively small force needs to be applied in the axial direction of the transmission sleeve assembly 1 to achieve a rotational fit of the transmission sleeve assembly 1 and the external component, achieving a stable transmission.

As shown in fig. 1 to 6, in some embodiments, when the outer circumferential surface of the transmission sleeve assembly 1 is provided with threads 14, the inner circumferential surface of the transmission sleeve assembly 1 is provided with straight-tooth splines 15, and it is possible to conveniently and rapidly connect or transmit with external parts through the straight-tooth splines 15. When the spur spline 15 is used for connection, the first sleeve 11 and the second sleeve 12 are able to move relatively along the spur spline 15 with the externally connected component and by this relative movement the threads 14 of the transmission sleeve are made to mate more tightly with the external component. When the straight spline 15 is used for transmission, the first sleeve 11 and the second sleeve 12 can relatively move along the straight spline 15 and the externally connected part at the same time of having the connecting function of the straight spline 15, the whole transmission sleeve assembly 1 can also move along the straight spline 15, and at the moment, the straight spline 15 in the transmission sleeve is propped against the spline shaft 3 due to the relative rotation of the first sleeve 11 and the second sleeve 12 because the relative rotation of the first sleeve 11 and the second sleeve 12 has the relative rotation, and the propping action can further enhance the matching tightness of the threads 14 and the straight spline 15, so that the matching clearance between the transmission sleeve and the spline shaft 3 is further reduced, and the stability of the transmission sleeve assembly 1 during the movement along the straight spline 15 is enhanced.

In some embodiments as shown in fig. 3, the threads 14 are involute threads 14 and/or the spur splines 15 are involute splines. Involute threads 14 (alternatively referred to as helical splines) provide greater contact area in transmitting torque and motion, and also have the advantages of self-centering, high installation accuracy, high load carrying capacity, and the like.

Regarding the connection assembly 13, the connection assembly 13 has a primary function of providing a first elastic member 132 (and/or a second elastic member 133) and connecting the first sleeve 11 and the second sleeve 12. The connection assembly 13 includes a collar 131 and a first elastic member 132, wherein when the screw thread 14 is disposed on the inner circumferential surfaces of the first sleeve 11 and the second sleeve 12, the radius of the inner circumferential surface of the collar 131 cannot be larger than the inner diameter of the first sleeve 11 (the second sleeve 12), and when the screw thread 14 is disposed on the outer circumferential surfaces of the first sleeve 11 and the second sleeve 12, the radius of the outer circumferential surface of the collar 131 cannot be larger than the outer diameter of the first sleeve 11 (the second sleeve 12), that is, the collar 131 cannot affect the screw transmission between the screw thread 14 and the external member. In some embodiments, the collar 131 is further provided with a mounting part for connecting with the driving part, the entire transmission sleeve assembly 1 is driven to move by the collar 131, when the mounting part is arranged on the inner peripheral surface of the collar 131, the collar 131 is connected with the screw nut 5 by the mounting part through a connecting piece, wherein the connecting piece can be an ear piece 6 as shown in fig. 8, so that the transmission sleeve assembly 1 is driven to move when the screw 4 rotates.

In this embodiment, for avoiding redundant description, only the connection relationship among the first clamping member 16, the first sleeve 11 and the connection assembly 13 is described, and those skilled in the art can refer to the connection relationship among the first clamping member 16, the first sleeve 11 and the connection assembly 13 to obtain the connection relationship among the second clamping member 17, the second sleeve 12 and the connection assembly 13.

As shown in fig. 2, in some embodiments, the first clamping member 16 is made of a flexible material, which may be a steel wire rope, a fiber rope, or the like, and is connected to the connection assembly 13 through one end of the first clamping member 16 having flexibility, and the other end is connected to the first sleeve 11, so as to define a maximum distance between the first sleeve 11 and the connection assembly 13 in an axial direction of the first sleeve 11. Since the flexible material is deformable, the first clamping member 16 made of the flexible material can be fixedly connected with the connecting assembly 13 and the first sleeve 11 respectively, the first clamping member 16 deforms when the first sleeve 11 and the second sleeve 12 are far away from or close to each other, the transmission sleeve assembly 1 is tightly matched with the external part, and the first clamping member 16 stops deforming when the transmission sleeve assembly 1 and the external part are kept stationary. The implementation mode using the flexible material is suitable for scenes with complex environments, limited layout or frequent movement.

In some embodiments, as shown in fig. 2, 5 and 6, the first and/or second clamping members 16, 17 are made of a rigid material, which may be an alloy, steel, or the like. Because the deformation range of the rigid material is smaller, at least one of the two ends of the first clamping piece 16 needs to be movably connected with the first sleeve 11 or the connecting component 13. The shape of the first clamping piece 16 and/or the second clamping piece 17 is strip-shaped as shown in fig. 5 and 6, and can also be columnar as shown in fig. 1 and 2. Because the strength of the rigid material is generally higher, the first clamping member 16 and/or the second clamping member 17 with a certain rigidity can be suitable for application scenarios with larger structure and higher bearing.

In some embodiments as shown in fig. 4, in order to facilitate the connection of the first clamping member 16 to the connection assembly 13, the connection assembly 13 further includes a first clamping ring 134, where the first clamping ring 134 and the first sleeve 11 are separately disposed at two ends of the annular sleeve 131, that is, the first clamping ring 134 is disposed between the second sleeve 12 and the annular sleeve 131, a third clamping groove 1341 is disposed on the first clamping ring 134 for connecting with the other end of the first clamping member 16, and similarly, a second clamping ring 135 is disposed between the first sleeve 11 and the annular sleeve 131, and a fourth clamping groove for connecting with the other end of the second clamping member 17 is disposed on the second clamping ring 135.

When the first clamping ring 134 and/or the second clamping ring 135 are provided, the first elastic member 132 may be provided between the first clamping ring 134 and the collar 131, between the connecting assembly 13 and the first sleeve 11, or between the second clamping ring 135 and the collar 131.

In some embodiments as shown in fig. 4, the connecting assembly 13 further includes a second elastic member 133, where the second elastic member 133 is disposed at an end of the ring sleeve 131 away from the first elastic member 132, and at this time, one connecting end of the second clamping member 17 is connected to the second elastic member 133, and the other connecting end of the second clamping member 17 is connected to the second sleeve 12.

In some embodiments, as shown in fig. 2 and 6, a plurality of first clamping members 16 and second clamping members 17 are provided, and further, the plurality of first clamping members 16 and second clamping members 17 are arranged in a circumferential array, so that the connection stress of the connection assembly 13, the first sleeve 11 and the second sleeve 12 is more uniform, and the transmission fit between the transmission sleeve assembly 1 and an external component is more stable and safer.

In some embodiments, the first elastic member 132 and/or the second elastic member 133 are wave springs. Compared with other springs, the wave spring has a more compact structure, is suitable for providing stronger elasticity in a limited space, and is particularly suitable for occasions with limited installation space.

As to the connection position of the first clamping member 16 (the second clamping member 17) on the connection assembly 13, the above description has been given of the two cases in which one end of the first clamping member 16 is connected to the elastic member and the other end is connected to the first sleeve 11. In the second case, one end of the first clamping member 16 is connected to the first clamping ring 134, and the other end is connected to the first sleeve 11. In addition, there is a third case where one end of the first engaging member 16 is connected to the collar 131 and the other end is connected to the first sleeve 11, and the third case can achieve similar technical effects as the first case and the second case described above.

In some embodiments, a protective sleeve is also included, which is provided over the collar 131 to prevent the connector from exiting the drive sleeve assembly 1. The shield can also prevent the connection assembly 13, the first clamping piece 16 and the second clamping piece 17 from being intruded by sand, dust, etc.

As a second aspect of this embodiment, as shown in fig. 7 and 8, a transmission assembly is provided, which includes the transmission sleeve assembly 1, and further includes a spline shaft 3, a screw rod 4, a screw rod nut 5, a lug 6 and an outer cylinder 2, wherein the screw rod 4 is in threaded connection with the screw rod nut 5, one end of the lug 6 is connected with the screw rod nut 5, the other end is connected with the transmission sleeve assembly 1, the transmission sleeve assembly 1 is sleeved on the spline shaft 3, a structure matched with the thread 14 is provided on the inner circumferential surface of the outer cylinder 2, and the outer cylinder 2 is sleeved on the transmission sleeve assembly 1.

In some embodiments, the tab 6 is connected to a mounting portion of the inner peripheral surface of the collar 131. In other embodiments, the length of the axis of the lug 6 is greater than that of the transmission sleeve assembly 1, a fifth clamping groove is formed in the position, close to the transmission sleeve assembly 1, of the lug 6, two ends of the transmission sleeve assembly 1 are clamped into the fifth clamping groove, when the lug 6 drives the transmission sleeve assembly 1 to move in the outer cylinder 2, the first sleeve 11 and the second sleeve 12 are far away or close, and tight spiral transmission is achieved by the threads 14 on the first sleeve 11, the threads 14 on the second sleeve 12 and the outer cylinder 2.

As a third aspect of the present embodiment, a solar device is provided, which includes the above-mentioned transmission assembly, and further includes a photovoltaic panel and a column, wherein a fixed end of the transmission assembly is connected with the column, and a moving end of the transmission assembly is connected with the photovoltaic panel.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In the description of the present utility model, it should be understood that the azimuth or positional relationship indicated by azimuth words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and these azimuth words do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model, and that the azimuth words "inside and outside" refer to inside and outside with respect to the outline of each component itself.

In the description of the present utility model, unless explicitly stated or limited otherwise, the term "comprise" and "comprise" are to be interpreted as broadly as "connected", either permanently connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediary, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A transmission sleeve assembly is characterized by comprising,

The first sleeve and the second sleeve are coaxially arranged, and threads with consistent thread pitches are arranged on the outer circumferential surface or the inner circumferential surface of the first sleeve and the second sleeve;

the connecting assembly is arranged between the first sleeve and the second sleeve, the connecting assembly comprises a ring sleeve and a first elastic piece, the ring sleeve is coaxially arranged between the first sleeve and the second sleeve, the first elastic piece is arranged at one end of the ring sleeve, a first clamping groove is formed in one end, close to the ring sleeve, of the first sleeve, and a second clamping groove is formed in one end, close to the ring sleeve, of the second sleeve;

The device comprises at least one first clamping piece and at least one second clamping piece, wherein one end of the first clamping piece is connected with a first clamping groove, the other end of the first clamping piece is connected with the connecting assembly, one end of the second clamping piece is connected with a second clamping groove, and the other end of the first clamping piece is connected with the connecting assembly.

2. The transmission sleeve assembly of claim 1 wherein said threads have a helix angle greater than 0 degrees and less than 45 degrees.

3. The transmission sleeve assembly of claim 1 wherein said first and/or second clamping members are made of a rigid material and are strip-like or cylindrical in shape.

4. The transmission sleeve assembly of claim 1 wherein said first and/or second snap-fit members are made of a flexible material.

5. The transmission sleeve assembly of claim 1, wherein the threads are disposed on an outer peripheral surface of the transmission sleeve assembly, wherein the inner peripheral surface of the transmission sleeve assembly is provided with straight-tooth splines, and wherein the inner peripheral surface of the collar is further provided with mounting portions for connection with an external driving member.

6. The transmission sleeve assembly of claim 1 wherein said coupling assembly further includes a second resilient member disposed at an end of said collar remote from said first resilient member.

7. The transmission sleeve assembly of claim 6 wherein said first resilient member and/or said second resilient member is a wave spring.

8. The transmission sleeve assembly of claim 6 wherein said connection assembly further comprises a first snap ring and a second snap ring coaxially disposed at opposite ends of said collar;

9. The transmission assembly is characterized by comprising the transmission sleeve assembly according to any one of claims 1 to 8, a spline shaft, a screw rod nut, lugs and an outer barrel, wherein the screw rod is in threaded connection with the screw rod nut, one end of each lug is connected with the screw rod nut, the other end of each lug is connected with the transmission sleeve assembly, the transmission sleeve assembly is sleeved on the spline shaft, and the outer barrel is sleeved on the transmission sleeve assembly.

10. A solar device is characterized by comprising the transmission assembly according to claim 9, and further comprising a photovoltaic panel and a stand column, wherein the fixed end of the transmission assembly is connected with the stand column, and the moving end of the transmission assembly is connected with the photovoltaic panel.