A coupling applied to a photovoltaic push-pull rod

Abstract

The application discloses a coupling applied to a photovoltaic push-pull rod, which comprises a body, the body is a square short pipe structure, the square short pipe structure comprises a left section, a joint section and a right section, the left section is on the left side of the joint section, the right section is on the right side of the joint section, the left section is narrowed from the joint section to the left end, the right section is narrowed from the joint section to the right end, the square short pipe is narrowed from the middle part to the two ends, and a connecting hole is arranged in the square short pipe.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic solar power generation applications, and in particular relates to a coupling used in photovoltaic push-pull rods. Background Technology

[0002] In solar power generation, tracking brackets are needed to achieve sun tracking. Existing single-axis tracking brackets achieve this rotational tracking function through the extension and retraction of a push-pull actuator. In this type of bracket, the drive motor is typically mounted in the center and connected to the push-pull actuator, becoming the active actuator. The other push-pull actuators are driven actuators, requiring couplings and drive shafts to achieve synchronized movement of the actuators on different columns. Existing couplings typically use universal joint couplings (such as...). Figure 1 (As shown) connects the drive shaft. However, this conventional universal joint coupling is not only complex to manufacture and costly, but also transmits relatively low torque. Summary of the Invention

[0003] This invention provides a coupling for use in photovoltaic push-pull rods.

[0004] The purpose of this invention is to solve the problems of complex processing technology, high cost, and relatively low torque transmission of existing universal joint couplings.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a coupling applied to a photovoltaic push-pull rod, comprising a body, wherein the body is a square short tube structure, the square short tube structure includes a left section, a connecting section and a right section, the left side of the connecting section is the left section, the right side of the connecting section is the right section, the left section narrows from the connecting section to the left end, the right section narrows from the connecting section to the right end, the square short tube narrows from the middle to both ends, and the square short tube is provided with a connecting hole.

[0006] The left segment includes four surfaces: the upper left tilt surface, the lower left tilt surface, the forward left tilt surface, and the backward left tilt surface. The upper left tilt surface tilts downward from the joint section to the left end, the lower left tilt surface tilts upward from the joint section to the left end, the forward left tilt surface tilts backward from the joint section to the left end, and the backward left tilt surface tilts forward from the joint section to the left end.

[0007] The right segment includes four surfaces: the upper right tilt surface, the lower right tilt surface, the forward right tilt surface, and the backward right tilt surface. The upper right tilt surface tilts downward from the joint section to the right end, the lower right tilt surface tilts upward from the joint section to the right end, the forward right tilt surface tilts backward from the joint section to the right end, and the backward right tilt surface tilts forward from the joint section to the right end.

[0008] The square short tube is provided with an axial stop hole in the middle.

[0009] The connecting hole extends through both ends of the square short tube, and the wall of the connecting hole is provided with a ring of splines for snap-fitting, or the connecting hole is a square inner hole.

[0010] The beneficial effects of the present invention are: the coupling of the present invention can not only adapt to a certain angular eccentricity, but also has a simple processing technology, relatively high torque, and good robustness, and is especially suitable for applications where the tracking bracket has low speed requirements and high torque requirements. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an existing universal joint coupling.

[0012] Figure 2 This is a schematic diagram of one of the couplings of the present invention.

[0013] Figure 3 This is a schematic diagram of the structure of the second coupling of the present invention.

[0014] Figure 4 This is a schematic diagram of the coupling of the present invention applied to a push-pull actuator connection. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] As shown in the figure, the coupling for photovoltaic push-pull rods according to the present invention includes a body 4, which is a square short tube structure. The square short tube structure includes a left section, a connecting section 2, and a right section. The left section is located to the left of the connecting section 2, and the right section is located to the right of the connecting section 2. The left section narrows from the connecting section 2 to the left end, and the right section narrows from the connecting section 2 to the right end. The square short tube narrows from the middle to both ends, and a connecting hole is provided inside the square short tube.

[0017] The left segment includes four surfaces: the upper left tilt surface 1, the lower left tilt surface, the forward left tilt surface 8, and the backward left tilt surface. The upper left tilt surface 1 tilts downward from the joint section 2 to the left end, the lower left tilt surface tilts upward from the joint section 2 to the left end, the forward left tilt surface 8 tilts backward from the joint section 2 to the left end, and the backward left tilt surface tilts forward from the joint section 2 to the left end.

[0018] The right segment includes four surfaces: the upper right tilt surface 3, the lower right tilt surface, the forward right tilt surface 6, and the backward right tilt surface. The upper right tilt surface 3 tilts downward from the joint segment 2 to the right end, the lower right tilt surface tilts upward from the joint segment 2 to the right end, the forward right tilt surface 6 tilts backward from the joint segment 2 to the right end, and the backward right tilt surface tilts forward from the joint segment 2 to the right end.

[0019] The connecting hole extends through both ends of the square short tube. A spline 5 for locking is provided on the wall of the connecting hole, or the connecting hole is a square inner hole 9. The spline of this invention is used to connect a power input shaft, such as the power input shaft 11 of a push-pull actuator. An axial stop hole 7 is provided in the middle of the square short tube.

[0020] The left upper tilt surface 1, left lower tilt surface, left front tilt surface 8, left rear tilt surface, right upper tilt surface 3, right lower tilt surface, right front tilt surface 6, and right rear tilt surface are used to adjust the connection angle between the power input shaft 11 and the transmission square tube 13.

[0021] The connection method of the push-pull actuator of the solar tracking bracket in this invention is as follows: one end of the coupling 4 is connected to the moving input shaft 8 on the gearbox 10 of the push-pull actuator via a spline 5, and the other end is connected to the square tube liner 12. A bolt is inserted into the axial stop hole 7 to prevent axial sliding of the coupling 4. The square tube liner 12 is fitted inside the transmission square tube (drive shaft) 13 of the solar bracket. When the square tube liner 12 is connected to the coupling 4, the square tube liner 12 can be adjusted to a required relative angle so that when multiple push-pull rods are linked, even if the power input shaft 11 is not concentric, the transmission square tube 13, which cooperates with the square tube liner 12, connects the coupling 4 to achieve synchronous linkage of multiple push rods.

Claims

1. A coupling for use in photovoltaic push-pull rods, comprising a body, characterized in that... The main body is a square short tube structure, which includes a left section, a connecting section and a right section. The left section is located to the left of the connecting section, and the right section is located to the right of the connecting section. The left section narrows from the connecting section to the left end, and the right section narrows from the connecting section to the right end. The square short tube narrows from the middle to both ends, and a connecting hole is provided inside the square short tube. The left segment includes four surfaces: the upper left tilt surface, the lower left tilt surface, the forward left tilt surface, and the backward left tilt surface. The upper left tilt surface tilts downward from the joint section to the left end, the lower left tilt surface tilts upward from the joint section to the left end, the forward left tilt surface tilts backward from the joint section to the left end, and the backward left tilt surface tilts forward from the joint section to the left end. The right segment includes four surfaces: the upper right tilt surface, the lower right tilt surface, the forward right tilt surface, and the backward right tilt surface. The upper right tilt surface tilts downward from the joint section to the right end, the lower right tilt surface tilts upward from the joint section to the right end, the forward right tilt surface tilts backward from the joint section to the right end, and the backward right tilt surface tilts forward from the joint section to the right end. The angle between the axis of the square tube liner and the axis of the main body can be adjusted.

2. The coupling for photovoltaic push-pull rods according to claim 1, characterized in that... The square short tube is provided with an axial stop hole in the middle.

3. The coupling for photovoltaic push-pull rods according to claim 1, characterized in that... The connecting hole extends through both ends of the square short tube, and the wall of the connecting hole is provided with a ring of splines for snap-fitting, or the connecting hole is a square inner hole.

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