CN203287780U - Groove type solar tracking and driving device - Google Patents

Abstract

The utility model relates to a groove type solar tracking and driving device which comprises a supporting body, a bracket arranged on the supporting body, reflective mirror grooves arranged on the bracket and a driving unit of the reflective mirror grooves. The reflective mirror grooves can be rotated relative to the bracket. The driving unit comprises a flexible pulling part arranged at each reflective mirror groove end, reversing members arranged on the bracket or the supporting body under the reflective mirror grooves, and a solar tracking driving member which enables the reflective mirror grooves to track the solar rotation. The solar tracking driving member comprises a driving motor, a controller which controls the rotation of the rotation of the driving motor and a driving shaft which is connected with a motor shaft of the driving motor. In the whole movement process, the flexible pulling parts slide around the reversing members and are connected to the driving shaft or are connected to the driving shaft through the flexible pulling parts. The utility model provides the groove type solar tracking and driving device with a simple tracking and driving structure.

Description

A kind of groove type solar is followed the tracks of drive unit

Technical field

The utility model relates to a kind of groove type solar use device, and particularly a kind of groove type solar is followed the tracks of drive unit.

Background technology

In order effectively to absorb sun power, groove type solar utilizes system all to design accurate and complicated tracker mostly, and its cost is generally very expensive, and the care and maintenance workload is also very large, has hindered the large-area universal of it and has promoted.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art and provides the simple groove type solar of a kind of tracking drives structure to follow the tracks of drive unit.

the technical solution of the utility model is achieved in that a kind of groove type solar tracking drive unit, comprise supporter, be arranged on the support on supporter, be arranged on reflector groove on support and the driver element of reflector groove, described reflector groove can be rotated relative to support, described driver element comprises the flexible drawing article that is arranged on each reflector groove termination, be arranged on the support of reflector groove below or the reversing piece on supporter and can make reflector groove follow the tracks of the solar tracking actuator that the sun rotates, described solar tracking actuator comprises drive motor, control the controller of drive motor rotation and the driving shaft that is connected with the motor shaft of drive motor, flexible drawing article is all slided and is walked around reversing piece and be connected to driving shaft or by flexible traction piece, be connected to driving shaft in whole motion process.

Further, described reversing piece is fixed pulley.

Further, described device also comprises the part that pins down that can make flexible drawing article tensioning, and described part one end that pins down is connected to the position of reflector groove termination, makes it with flexible drawing article, rotate and produce opposite moment relative to support respectively.Further, the described part that pins down is for being with flexible flexibility to pin down part, and flexibility pins down the part other end and is connected to the tensioning motor.Further, the described part other end that pins down hangs a weight.

Further, the flexible drawing article that is positioned at same limit on described same row reflector groove is connected on driving shaft by same flexible traction piece.

useful technique effect of the present utility model is as follows: described driver element comprises the flexible drawing article that is arranged on each reflector groove termination, be arranged on the support of reflector groove below or the reversing piece on supporter and can make reflector groove follow the tracks of the solar tracking actuator that the sun rotates, flexible drawing article cunning is walked around reversing piece and is connected to driving shaft or by flexible traction piece, is connected to driving shaft in whole motion process, the angle that reflector groove need to be rotated can directly be converted into by formula the displacement of flexible drawing article, thereby only need by pulling flexible drawing article just can realize following the tracks of the purpose of the sun, simple and convenient.

Description of drawings

Fig. 1 is the side structure schematic diagram of slot type solar energy tracking drive unit in the utility model.

Fig. 2 is the geometric relationship schematic diagram of the displacement of angle and main driving rope in the utility model.

Fig. 3 is the geometric relationship schematic diagram of the displacement of angle and tensioned lines in the utility model.

Embodiment

, below in conjunction with accompanying drawing, by embodiment, the utility model is described further.

A kind of groove type solar is followed the tracks of drive unit, comprise supporter, supporter is ground, be arranged on ground support, as shown in Figure 1, support comprises five row's support bars 1 and is arranged on endothermic tube 2 on every row's support bar, Fig. 1 has only showed wherein three rows' side, every row's support bar is east-west, all by hanger bar 3, hangs a reflector groove 4 is set between the support bar of arbitrary neighborhood on endothermic tube, and hanger bar can be rotated around endothermic tube; The below of support bar upper reflector groove is provided with fixed pulley 5, the below that is positioned at reflector groove in every row's support bar on two support bars of two ends arranges respectively a fixed pulley, two fixed pulleys are set respectively on all the other support bars, and each reflector groove has two fixed pulleys; The two ends of the Linear edge in reflector groove south arrange respectively one piece minute and drive rope 6, drove a rope sliding fixed pulley walking around its below respectively in every minute, and be connected on a main driving rope 7, on five row's support bars, five pieces minutes driving ropes sliding the fixed pulley on the support bar of walking around same row are connected to respectively on same main driving rope; This device also comprises that being arranged on five arranges support bars solar tracking actuator northernmost, but the solar tracking actuator comprises a drive motor 8 that is arranged on the twin shaft of middle rotating, connect one group by bearing respectively on each motor shaft of drive motor and drive steel axle 9, the other end of all main driving ropes all is connected to and drives on the steel axle, drive motor is connected with a controller 10, and the single-chip microcomputer in controller has write the annual not program of solar azimuth in the same time.

In order to prevent making reflector groove make minute driving rope lax toward north motion due to the impact of the physical environments such as wind-force when drive motor does not rotate, arrange respectively one at the two ends of the Linear edge on the reflector groove north and pin down part, pining down part is elastic threads 11, elastic threads is the sliding fixed pulley of walking around its below respectively, and be connected on a tensioned lines 12, on five row's support bars, five elastic threads sliding the fixed pulley on the support bar of walking around same row are connected to respectively on same tensioned lines.This device also comprise be arranged on five row's support bars southernmost pin down actuator, but pin down actuator and comprise a tensioning motor 13 that is arranged on the twin shaft of middle rotating, connect one group of tensioning steel axle 14 by bearing respectively on each motor shaft of tensioning motor, the other end of all tensioned lines all is connected on tensioning steel axle, and tensioning motor and drive motor are controlled by a controller.Following the tracks of the solar time, contracture drives rope, puts elastic threads, and minute driving rope and elastic threads realize that by controller folding and unfolding is synchronous,, even folding and unfolding speed is not too consistent, also can play by the elastic force of elastic threads certain buffer action.

As shown in Figure 2, reflector groove AB is around the rotation of O point, and OA, OB are the hanger bar of reflector groove, hanger bar OA and OB are on a horizontal line, and the length of hanger bar OA and OB is r, and the C point is fixed pulley, the height of OC is h, AD walks around the C point for dividing the driving rope, divide to drive to restrict to slide, and is connected on main driving rope EF, the D point is tie point, annual every day, sun altitude α was known all the time, and the angle of OA and OC is β, OB and OC ₁Angle be θ, β=θ, know through the conversion of the relation at triangle angle, θ=α, therefore, α=β, the length that minute drives the AC section of rope is l.

By $\cos \mathrm{\β}=\cos \mathrm{\α}=\frac{r^2+h^2-l^2}{2\×r\×h}$ Can obtain $l=\sqrt{r^2+h^2-2\×r\×h\×\cos \mathrm{\α}}$ ?，

At t ₀Constantly, sun altitude is α ₀,

Divide the length of the AC section that drives rope to be $l_0=\sqrt{r^2+h^2-2\×r\×h\×\cos {\mathrm{\α}}_0}$ ?，

At t ₁Constantly, sun altitude is α ₁,

Divide the length of the AC section that drives rope to be $l_1=\sqrt{r^2+h^2-2\×r\×h\×\cos {\mathrm{\α}}_1}$ ?，

Reflector groove turns to A by the AB position so ₁B ₁Position, the displacement l=l of minute driving rope ₀-l ₁, then according to the motor shaft that drives steel axle and drive motor radiuscope calculate drive motor at t ₁The moment needs the angle of rotating, and has write the program of dividing the displacement that drives rope all the time in single-chip microcomputer, and then the rotation of control drive motor realizes the tracking to the sun.

As shown in Figure 3, the angle of OC and OB is η, and η=π-θ=π-α, BG are elastic threads, and the elastic threads cunning is walked around the C point, is connected on tensioned lines HI, and the G point is tie point, and the length of the BC section of elastic threads is s, by $\cos \mathrm{\η}=\cos (\mathrm{\π}-\mathrm{\α})=\frac{r^2+h^2-l^2}{2\×r\×h}$ Can obtain $S=\sqrt{r^2+h^2-2\×r\×h\×\cos (\mathrm{\π}-\mathrm{\α})}$ ?，

At t ₀Constantly, sun altitude is α ₀,

The length of the BC section of elastic threads is $S_0=\sqrt{r^2+h^2-2\×r\×h\×\cos (\mathrm{\π}-{\mathrm{\α}}_0)}$ ?，

At t ₁Constantly, sun altitude is α ₁,

The length of the BC section of elastic threads is $S_1=\sqrt{r^2+h^2-2\×r\×h\×\cos (\mathrm{\π}-{\mathrm{\α}}_1)}$ ?，

Reflector groove turns to A by the AB position so ₁B ₁Position, the displacement S=S of elastic threads ₁-S ₀, then according to the motor shaft radiuscope of tensioning steel axle and tensioning motor, calculate the tensioning motor at t ₁Constantly need the angle of rotating, write the program of the displacement of tensioned lines all the time in single-chip microcomputer, and then by the rotation of controlling the tensioning motor, reach and make minute purpose of driving rope tensioning constantly.

Claims (6)

1. a groove type solar is followed the tracks of drive unit, comprise supporter, be arranged on the support on supporter, be arranged on reflector groove on support and the driver element of reflector groove, described reflector groove can be rotated relative to support, it is characterized in that: described driver element comprises the flexible drawing article that is arranged on each reflector groove termination, be arranged on the support of reflector groove below or the reversing piece on supporter and can make reflector groove follow the tracks of the solar tracking actuator that the sun rotates, described solar tracking actuator comprises drive motor, control the controller of drive motor rotation and the driving shaft that is connected with the motor shaft of drive motor, flexible drawing article is all slided and is walked around reversing piece and be connected to driving shaft or by flexible traction piece, be connected to driving shaft in whole motion process.

2. groove type solar according to claim 1 is followed the tracks of drive unit, and it is characterized in that: described reversing piece is fixed pulley.

3. groove type solar according to claim 1 is followed the tracks of drive unit, it is characterized in that: described device also comprises the part that pins down that can make flexible drawing article tensioning, described part one end that pins down is connected to the position of reflector groove termination, makes it with flexible drawing article, rotate and produce opposite moment relative to support respectively.

4. groove type solar according to claim 3 is followed the tracks of drive unit, and it is characterized in that: the described part that pins down is for being with flexible flexibility to pin down part, and flexibility pins down the part other end and is connected to the tensioning motor.

5. groove type solar according to claim 3 is followed the tracks of drive unit, it is characterized in that: the described part other end that pins down hangs a weight.

6. groove type solar according to claim 1 is followed the tracks of drive unit, and it is characterized in that: the flexible drawing article that is positioned at same limit on described same row reflector groove is connected on driving shaft by same flexible traction piece.

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