CN213754411U

CN213754411U - Connecting rod transmission heliostat

Info

Publication number: CN213754411U
Application number: CN202022920738.3U
Authority: CN
Inventors: 倪举鹏; 丁明跃; 尉迟明
Original assignee: Ezhou Institute of Industrial Technology Huazhong University of Science and Technology
Current assignee: Ezhou Institute of Industrial Technology Huazhong University of Science and Technology
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-07-20
Anticipated expiration: 2030-12-08

Abstract

The utility model relates to the technical field of solar energy, and discloses a connecting rod transmission heliostat, which comprises a base bracket, a latitude adjusting device and a longitude adjusting device, wherein the longitude adjusting device comprises a first rotating motor arranged on the upper part of the base bracket and a first rotating piece fixed on an output shaft of the first rotating motor; the latitude adjusting device comprises a second rotating motor and a second rotating part fixed on an output shaft of the second rotating motor; the second rotating piece is arranged in the middle of the first rotating piece and is hinged with the first rotating piece; the front end of first rotation piece is equipped with horizontal bracing piece, and the lens body is installed in horizontal bracing piece, still is equipped with the connecting rod, and the tie point of first rotation piece and horizontal bracing piece is connected to the one end of connecting rod, and the tail end of second rotation piece is connected to one end in addition for solve the defect that the structure is complicated, the manufacturing difficulty, the transmission precision is low and the inefficiency that current heliostat exists.

Description

Connecting rod transmission heliostat

Technical Field

The utility model relates to a solar energy technical field especially relates to a connecting rod transmission heliostat.

Background

A heliostat refers to an optical device that reflects light from the sun or other celestial bodies in a fixed direction, and is also called a starmirror. The action is similar to that of a celestial fixing mirror, but a plane mirror is arranged in an equatorial device and can move in the declination direction. In the process of utilizing solar energy, sunlight needs to be reflected to a certain area or a certain point in a fixed point in many cases, and then a specific device is arranged at the point so as to utilize the solar energy to collect light, generate electricity and the like. The heliostat device is a key component of a tower type thermal power generation system and is also a main part of the investment of a power station, and the scheme design, the structural reasonability and the cost are very important for the power station.

The existing heliostat device is typically a structure adopted in a tower type power generation system I and II of the sun built in the southern California of the United states, and is characterized in that: the plane mirror is arranged in a sail type plane, the plane mirror frame is fixed on the transverse main rotating shaft, the cantilever of the transverse main rotating shaft is supported on a single vertical rotating shaft, and the length of the force arm of the acting force is approximately zero no matter the height angle or the azimuth angle rotates. Since the flat mirrors act like a large sail, on the one hand requiring a very powerful automatic tracking mechanism and on the other hand requiring sufficient strength of the infrastructure, they are expensive to construct.

In order to facilitate the mass manufacturing of solar equipment, a heliostat which has the advantages of simple structure, convenience in manufacturing, small transmission gap, high precision, low cost and high efficiency is urgently needed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An embodiment of the utility model provides a connecting rod transmission heliostat for solve the defect that the structure is complicated, the manufacturing difficulty, the transmission precision is low and efficient that current heliostat exists.

(II) contents of utility model

The embodiment of the utility model provides a connecting rod transmission heliostat, including the base support, still include latitude adjusting device and longitude adjusting device, longitude adjusting device includes the first rotating electrical machines that installs in the upper portion of base support and is fixed in the first rotating member of the output shaft of first rotating electrical machines; the latitude adjusting device comprises a second rotating motor and a second rotating part fixed on an output shaft of the second rotating motor; the second rotating piece is arranged in the middle of the first rotating piece and is hinged with the first rotating piece; the front end of the first rotating piece is provided with a transverse supporting rod, the lens body is arranged on the transverse supporting rod, the connecting rod is further arranged, one end of the connecting rod is connected with a connecting point of the first rotating piece and the transverse supporting rod, the other end of the connecting rod is connected with the tail end of the second rotating piece, the distance from a hinge point of the first rotating piece and the second rotating piece to the connecting point of the second rotating piece and the connecting rod is d1, the distance from the hinge point of the first rotating piece and the second rotating piece to the connecting point of the second rotating piece and the connecting rod is d2, and d1 is d 2; the top end of the second rotating part is also provided with a light ray sensor.

Preferably, a rectangular long slotted hole is formed in the middle of the first rotating member, the second rotating member penetrates through the rectangular long slotted hole, and an output shaft of the second rotating motor penetrates through the side wall of the rectangular long slotted hole and the lower end of the second rotating member.

Preferably, the middle part of the second rotating part is provided with a bending part, so that the upper end of the second rotating part extends out of the side of the lens body.

Preferably, the two sides of the lens body are provided with positioning rings, the transverse supporting rod sequentially penetrates through the through hole at the front end of the first rotating piece and the through hole at the upper end part of the connecting rod, and the two ends of the transverse supporting rod are respectively fixed on the positioning rings.

Preferably, the base support includes two support legs horizontally disposed and a support plate obliquely disposed, and the first rotating motor is installed at an upper end of the support plate.

Preferably, the included angle between the two support legs is theta, and then theta is more than or equal to 30 degrees and less than or equal to 60 degrees.

Preferably, the first rotating member and the second rotating member are both ac servo motors.

(III) advantageous effects

The embodiment of the utility model provides a connecting rod transmission heliostat, including the base support, still include latitude adjusting device and longitude adjusting device, longitude adjusting device includes the first rotating electrical machines that installs in base support upper portion and is fixed in the first rotating member of the output shaft of first rotating electrical machines; the latitude adjusting device comprises a second rotating motor and a second rotating part fixed on an output shaft of the second rotating motor; the first rotating piece of the longitude adjusting device, the second rotating piece of the latitude adjusting device and the connecting rod are arranged to be in a certain angular relationship, so that a hinge point of the first rotating piece and the second rotating piece, a connecting point of the first rotating piece and the transverse supporting rod and a connecting point of the second rotating piece and the connecting rod form an isosceles right triangle, the sum of two base angles of the isosceles triangle is equal to an outer angle of a vertex angle, namely the geometric relationship that the outer angle of the vertex angle is always twice as large as the base angle, the rotating angle of the first rotating piece is always twice as large as the rotating angle of the connecting rod, when the system works, the first rotating piece points to the target rear fixed base support, the first rotating piece controls the longitude direction of the first rotating piece, the second rotating piece directly controls the latitude direction of the second rotating piece, and the light ray sensor points to the sunlight incidence direction (the light ray sensor faces to the sunlight), the sunlight reflected by the mirror is now directed towards the target. Compared with the existing heliostat, the heliostat has the advantages of simple structure, convenience in manufacturing, small transmission gap, high precision, low cost and high efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first view angle of a link-driven heliostat according to embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a second view angle of a link-driven heliostat according to embodiment 1 of the present invention.

Fig. 3 is a schematic diagram of an overall structure of a link-driven heliostat according to embodiment 2 of the present invention.

Description of reference numerals:

1: a base support; 21: a first rotating member; 22: a first rotating electric machine;

31: a second rotating member; 32: a second rotating electric machine; 4: a transverse support bar;

5: a connecting rod; 6: a light sensor; 7: rectangular slotted holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "first", "second" and "third" are used for the sake of clarity in describing the numbering of the product parts and do not represent any substantial difference, unless explicitly stated or limited otherwise. The directions of "up", "down", "left" and "right" are all based on the directions shown in the attached drawings. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

It is to be understood that, unless otherwise expressly specified or limited, the term "coupled" is used broadly, and may, for example, refer to directly coupled devices or indirectly coupled devices through intervening media. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

Example 1.

Fig. 1 and 2 show a link-driven heliostat according to an embodiment of the present invention, which includes a base bracket 1, and further includes a latitude adjusting device and a longitude adjusting device, the longitude adjusting device includes a first rotating motor 22 mounted on an upper portion of the base bracket 1 and a first rotating member 21 fixed to an output shaft of the first rotating motor 22; the latitude adjusting means includes a second rotating motor 32 and a second rotating member 31 fixed to an output shaft of the second rotating motor 32; the second rotating member 31 is disposed in the middle of the first rotating member 21, and the second rotating member 31 is hinged to the first rotating member 21; the front end of the first rotating member 21 is provided with a transverse supporting rod 4, the lens body is mounted on the transverse supporting rod 4, and is further provided with a connecting rod 5, one end of the connecting rod 5 is connected with a connecting point of the first rotating member 21 and the transverse supporting rod 4, the other end of the connecting rod 5 is connected with the tail end of the second rotating member 31, the distance from a hinge point of the first rotating member 21 and the second rotating member 31 to the connecting point of the second rotating member 31 and the connecting rod 5 is d1, the distance from the hinge point of the first rotating member 21 and the second rotating member 31 to the second rotating member 31 and the transverse supporting rod 4 is d2, and then d1 is equal to d 2; the top end of the second rotating member 31 is also provided with a light sensor 6. At this time, the hinge point of the first rotating member 21 and the second rotating member 31, the connection point of the second rotating member 31 and the connection rod 5, and the connection point of the first rotating member 21 and the connection rod 5 form an isosceles triangle, and by using the geometric relationship that the sum of two base angles of the isosceles triangle is equal to the outer angle of the top angle, i.e., the outer angle of the top angle is always twice the base angle, the rotating angle of the first rotating member 21 is always twice the rotating angle of the connection rod 5.

Drive first rotation piece 21 rotation through first rotation motor 22 and drive the second and rotate piece 31 rotation to the adjustment is located the longitude of the light sensor 6 that the second rotated the top of piece 31 directional, rotates motor 32 through the second and drives the second and rotate piece 31 rotation, thereby the latitude of adjustment optical fiber sensor directional, light sensor 6 lets two motor control second rotate the piece 31 directional sunshine incident direction (light sensor 6 faces towards sunshine), and the sunshine that is reflected by the mirror this moment is just towards the target.

Preferably, a rectangular long slot hole 7 is formed in the middle of the first rotating member 21, the second rotating member 31 passes through the rectangular long slot hole 7, and the output shaft of the second rotating motor 32 passes through the side wall of the rectangular long slot hole 7 and the lower end of the second rotating member 31.

Preferably, the second rotating member 31 has a bent portion at a middle portion thereof such that an upper end thereof protrudes from a side of the lens body, and this structure is used to prevent the lens body from blocking the light sensor 6.

Preferably, the two sides of the lens body are provided with positioning rings, the transverse support rod 4 sequentially penetrates through the through hole at the front end of the first rotating member 21 and the through hole at the upper end of the connecting rod 5, and the two ends of the transverse support rod 4 are respectively fixed on the positioning rings.

Preferably, the base support 1 includes two stabilizer blades that the level set up and the backup pad that the slope set up, and first rotating motor 22 installs in the upper end of backup pad, and the contained angle between two stabilizer blades is 60, and the supporting legs structure of this kind of structure is more stable, is difficult to take place to turn on one's side.

Preferably, the first rotating member 21 and the second rotating member 31 are both ac servo motors, and the ac servo motors realize closed-loop control of position, speed and torque, so as to overcome the step-out problem of the stepping motors, and be more suitable for the occasions with higher precision requirements.

Example 2.

As shown in fig. 3, the embodiment 2 is different from the embodiment 1 only in that the two parts of the first rotating member 21 divided by the rectangular slot 7 are respectively connected with the transverse supporting rod 4, and such a structure makes the connection between the first rotating member 21 and the transverse supporting rod 4 more stable and better conforms to the mechanical structure principle.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A connecting rod transmission heliostat comprises a base support and is characterized by further comprising a latitude adjusting device and a longitude adjusting device, wherein the longitude adjusting device comprises a first rotating motor and a first rotating piece, the first rotating motor is mounted at the upper part of the base support, and the first rotating piece is fixed to an output shaft of the first rotating motor; the latitude adjusting device comprises a second rotating motor and a second rotating part fixed on an output shaft of the second rotating motor; the second rotating piece is arranged in the middle of the first rotating piece and is hinged with the first rotating piece; the front end of the first rotating piece is provided with a transverse supporting rod, and the lens body is arranged on the transverse supporting rod; the connecting rod is further arranged, one end of the connecting rod is connected with a connecting point of the first rotating piece and the transverse supporting rod, the other end of the connecting rod is connected with the tail end of the second rotating piece, the distance from a hinge point of the first rotating piece and the second rotating piece to the connecting point of the second rotating piece and the connecting rod is d1, the distance from the hinge point of the first rotating piece and the second rotating piece to the second rotating piece and the transverse supporting rod is d2, and then d1 is d 2; and the top end of the second rotating part is also provided with a light ray sensor.

2. The link-driven heliostat as recited in claim 1, wherein a rectangular slot is formed in a central portion of the first rotating member, the second rotating member passes through the rectangular slot, and an output shaft of the second rotating motor passes through a side wall of the rectangular slot and a lower end of the second rotating member.

3. The link-driven heliostat of claim 2, wherein the second rotating member is provided at its middle portion with a bent portion so that its upper end protrudes from the side of the lens body.

4. The heliostat as recited in claim 3, wherein positioning rings are provided on both sides of the lens body, the transverse support rod passes through the through hole at the front end of the first rotating member and the through hole at the upper end of the connecting rod in sequence, and both ends of the transverse support rod are fixed to the positioning rings respectively.

5. The link driven heliostat of claim 1, wherein the base support comprises two legs disposed horizontally and a support plate disposed obliquely, the first rotating motor being mounted to an upper end of the support plate.

6. The link driven heliostat of claim 5, wherein the angle between the two legs is θ, then 30 ° < θ < 60 °.

7. The link driven heliostat of claim 1, wherein the first and second rotating members are ac servomotors.