Multi-axis linkage heliostat tracking device

Abstract

The utility model relates to a multi-axis linkage heliostat tracking device, which relates to the technical field of heliostats, and comprises a heliostat body, the bottom end of the heliostat body is fixedly connected with a support frame, the opposite side of the bottom end of the support frame is fixedly connected with a control shaft, the outer side of the central position of the control shaft is movably connected with a connecting shaft through a bearing, and the connecting shaft is fixedly connected with the heliostat body. A connecting strip is movably connected to the bottom end of the connecting shaft, a fixing block is fixedly connected to the bottom end of the connecting strip, a multi-shaft tracking mechanism is fixedly connected to the surface of the top of the fixing block, grooves are formed in the two ends of the connecting shaft, and fine adjustment limiting mechanisms are movably connected to the interiors of the grooves. According to the multi-shaft tracking mechanism, when the connecting shaft is obliquely pressed up, the guide wheel is driven to push the transmission belt towards the inclined side, so that it is guaranteed that equipment rapidly conducts tracking adjustment, it is guaranteed that the tracking angle is accurate, and the transmission effect of the transmission belt is prevented from being affected during fine adjustment.

Description

TECHNICAL FIELD

[0001] The utility model relates to heliostat technical field, concretely is a kind of multi-axis linkage heliostat tracking device. BACKGROUND

[0002] Heliostat refers to the light of sun or other celestial bodies is reflected to fixed direction optical device, also called star mirror, function is similar to heliostat, but using a plane mirror is placed in equatorial device, can be moved in declination direction.

[0003] In actual use, need to adjust heliostat to aim at sun direct radiation by tracking device at all times, but present general way is directly tracked sunlight angle by motor or other equipment, to make heliostat inclination angle, this operation is easy to cause angle to exist certain deviation, secondly, under the influence of gravity of heliostat itself, when tilting, reaction force will be applied to the tracking adjusting equipment, so as to produce certain rebound and affect tracking angle. UTILITY MODEL CONTENT

[0004] The utility model aims at making up the deficiency that present direct tracking sunlight angle by motor or other equipment, to make heliostat inclination angle, this operation is easy to cause angle to exist certain deviation, secondly, under the influence of gravity of heliostat itself, when tilting, reaction force will be applied to the tracking adjusting equipment, so as to produce certain rebound and affect tracking angle.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of multi-axis linkage heliostat tracking device, including heliostat body, the bottom end of the heliostat body is fixedly connected with support frame, and the bottom end of support frame is fixedly connected with control shaft relative to side, the outside of the central position of control shaft is movably connected with connecting shaft by bearing, the bottom end of connecting shaft is movably connected with connecting strip, and the bottom end of connecting strip is fixedly connected with fixed block, the top surface of fixed block is fixedly connected with multi-axis tracking mechanism, recess is set in both ends of connecting shaft, and micro-adjusting limiting mechanism is movably connected in the recess.

[0007] Further, the multi-axis tracking mechanism includes drive shaft, servo motor, transmission wheel and transmission belt, the transmission wheel is fixedly connected to both ends of drive shaft, and the output end of servo motor is fixedly connected to one end of drive shaft by coupling, another transmission wheel is arranged above the transmission wheel connected to both ends of drive shaft, and the transmission wheel on the same side is connected by transmission belt.

[0008] Further, the multi-shaft tracking mechanism further comprises guide wheels, a connecting frame and a fixed shaft, the guide wheels are two in number and are located inside the transmission belt, the guide wheels are in close contact with the inner wall of the transmission belt, the connecting frame is V-shaped and the top end of the connecting frame is movably connected to the shaft center of the guide wheels through a rotating shaft respectively, and the two ends of the fixed shaft are fixedly connected to the bottom ends of the opposite sides of the connecting frame.

[0009] Further, the middle positions of the driving shaft and the fixed shaft are penetrated by a connecting strip, and the driving shaft and the fixed shaft are movably connected to the connecting strip through bearings at the connecting positions, and the transmission wheels located directly above the driving shaft are fixedly connected to the outer side of the connecting shaft.

[0010] Further, the fine adjustment limiting mechanism comprises hydraulic rods and guide wheels, the two ends of the pull rope are fixedly connected with the hydraulic rods, the guide wheels are two in number and are symmetrically arranged, and the pull rope is in close contact with the hub of the guide wheel.

[0011] Further, the guide wheels are movably connected to the inside of the grooves through rotating shafts respectively, and the inside of the connecting shaft is transversely provided with a connecting hole, and the two ends of the connecting hole extend into the inside of the groove.

[0012] Further, the middle part of the pull rope is located in the inside of the connecting hole, and the end of the hydraulic rod away from the pull rope is fixedly connected to the surface of the fixed block.

[0013] Compared with the prior art, the multi-shaft linkage heliostat tracking device has the following beneficial effects:

[0014] Firstly, the multi-shaft tracking mechanism is provided, the servo motor is started to drive the driving shaft to rotate, since the transmission wheels are drivingly connected through the transmission strips, at this time, the driving shaft drives all the driving wheels to rotate in the same direction, then the control shaft follows the track of the transmission wheel to drive the support frame to tilt to one side, at this time, the receiving angle of the heliostat body changes, and then the connecting shaft is tilted to press the guide wheel to push the transmission belt to the tilted side, thereby facilitating the equipment to quickly track and adjust, ensuring the tracking angle to be accurate, and avoiding affecting the transmission effect of the transmission belt when fine adjustment is performed.

[0015] Secondly, the fine adjustment limiting mechanism is provided, two hydraulic rods are used to make the hydraulic rod close to the tilted end of the heliostat contract and the other hydraulic rod extend, at this time, the pull rope is pulled to slide through the hub of the guide wheel, and the connecting shaft is tilted to press the rear end of the heliostat to make fine adjustment to the tilt angle, thereby facilitating the heliostat to track the sunlight, ensuring the tracking angle to be accurate, and limiting the angle of the heliostat to prevent the heliostat from rebounding the angle of the multi-shaft tracking mechanism due to the influence of its own gravity.

[0016] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following detailed description, the appended claims, and the drawings. It is intended by the present application that any additional features described below, any additional steps performed by the methods described below, any additional components described below, and any additional combinations of the features, steps, and components described below are considered to be within the scope of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the present application.

[0018] Figure 2 It is a connecting shaft connecting structure schematic diagram of the present application.

[0019] Figure 3 It is a connecting shaft cross section structure schematic diagram of the present application.

[0020] Figure 4 It is a connecting shaft cross section structure schematic diagram of the present application. Figure 3 It is an enlarged structure schematic diagram of A in the present application.

[0021] In the figure: 1, heliostat body; 2, support frame; 3, control shaft; 4, connecting shaft; 5, connecting strip; 6, fixed block; 7, multi-axis tracking mechanism; 701, drive shaft; 702, servo motor; 703, transmission wheel; 704, transmission belt; 705, guide wheel; 706, connecting frame; 707, fixed shaft; 8, groove; 9, fine adjustment limiting mechanism; 901, hydraulic rod; 902, pull rope; 903, guide wheel; 10, connecting hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1 to 4 The present application provides the following technical solutions:

[0024] The multi-axis linkage heliostat tracking device, comprising a heliostat body 1, the bottom end of the heliostat body 1 is fixedly connected with a support frame 2, and the bottom end of the support frame 2 is fixedly connected with a control shaft 3 on the opposite side, a connecting shaft 4 is movably connected outside the center position of the control shaft 3 through a bearing, a connecting strip 5 is movably connected to the bottom end of the connecting shaft 4, and the bottom end of the connecting strip 5 is fixedly connected with a fixed block 6, a multi-axis tracking mechanism 7 is fixedly connected to the top surface of the fixed block 6, grooves 8 are formed in both ends of the connecting shaft 4, and a fine adjustment limiting mechanism 9 is movably connected in the grooves 8.

[0025] AsFigure 2 , Figure 3 and Figure 4 As shown, the multi-axis tracking mechanism 7 includes a drive shaft 701, a servo motor 702, transmission wheels 703, and a transmission belt 704. The transmission wheels 703 are fixedly connected to both ends of the drive shaft 701, and the output end of the servo motor 702 is fixedly connected to one end of the drive shaft 701 via a coupling. Above each of the transmission wheels 703 connected to both ends of the drive shaft 701, another transmission wheel 703 is provided, and the transmission wheels 703 on the same side are connected by the transmission belt 704. The multi-axis tracking mechanism 7 also includes a guide wheel 705, a connecting frame 706, and a fixed shaft 707. The guide wheel 705 has two parallel... Located inside the transmission belt 704, the guide wheel 705 is close to the inner wall of the transmission belt 704. The connecting frame 706 is V-shaped and its top is movably connected to the axis of the guide wheel 705 through a rotating shaft. The bottom end of the fixed shaft 707 is fixedly connected to the bottom end of the opposite side of the connecting frame 706. The top end of the fixed shaft 707 is movably connected to the outside of the control shaft 3 through a collar. The connecting strip 5 passes through the middle position of the drive shaft 701, and the connection of the drive shaft 701 and the connecting strip 5 is movably connected through a bearing. The transmission wheel 703 located directly above the drive shaft 701 is fixedly connected to the outside of the connecting shaft 4.

[0026] By activating the servo motor 702, the drive shaft 701 is rotated. Since the transmission wheel 703 is connected by the transmission bar, the drive shaft 701 drives all the drive wheels to rotate in the same direction. Then, the control shaft 3 follows the trajectory of the transmission wheel 703 and drives the support frame 2 to tilt to one side. At this time, the receiving angle of the heliostat body 1 changes. Secondly, when the connecting shaft 4 tilts and presses up, it will drive the guide wheel 705 to push the transmission belt 704 to the tilted side. This helps to ensure that the equipment can quickly perform tracking adjustments and ensure accurate tracking angle. Furthermore, it avoids affecting the transmission effect of the transmission belt 704 when making fine adjustments.

[0027] like Figure 2 , Figure 3 and Figure 4 As shown, the fine-tuning limiting mechanism 9 includes a hydraulic rod 901, a pull rope 902, and a guide wheel 903. Both ends of the pull rope 902 are fixedly connected to the hydraulic rod 901. There are two guide wheels 903 arranged symmetrically. The pull rope 902 is close to the hub of the guide wheel 903. The guide wheels 903 are movably connected to the inside of the groove 8 through a rotating shaft. The connecting shaft 4 has a connecting hole 10 opened laterally inside, and both ends of the connecting hole 10 extend into the inside of the groove 8. The middle part of the pull rope 902 is located inside the connecting hole 10. The end of the hydraulic rod 901 away from the pull rope 902 is fixedly connected to the surface of the fixing block 6.

[0028] When the two hydraulic rods 901 are controlled to approach the tilting end of the heliostat, one of the hydraulic rods 901 is retracted, and the other is extended, at this time, the pull rope 902 is pulled to slide through the hub of the guide wheel 903, and the connecting shaft 4 is tilted and pressed to make the rear end of the heliostat abut against the heliostat to make fine adjustment of the tilting angle, thereby facilitating the heliostat to perform sunlight tracking, ensuring that the tracking angle is accurate, and secondly, limiting the angle of the heliostat to prevent the heliostat from driving the multi-axis tracking mechanism 7 to rebound due to its own gravity.

[0029] The working principle of the utility model is as follows:

[0030] When in use, the servo motor 702 is started to drive the driving shaft 701 to rotate, since the transmission wheel 703 is connected through the transmission bar, at this time, the driving shaft 701 drives all the driving wheels to rotate in the same direction, then the control shaft 3 follows the track of the transmission wheel 703 to drive the support frame 2 to tilt to one side, at this time, the receiving angle of the heliostat body 1 changes, and the tracking angle adjustment is completed, then the two hydraulic rods 901 are controlled to approach the tilting end of the heliostat, one of the hydraulic rods 901 is retracted, and the other is extended, at this time, the pull rope 902 is pulled to slide through the hub of the guide wheel 903, and the connecting shaft 4 is tilted and pressed to make the rear end of the heliostat abut against the heliostat to make fine adjustment of the tilting angle, at this time, the guide wheel 705 pushes the transmission belt 704 to one side, thereby facilitating the heliostat to perform sunlight tracking, ensuring that the tracking angle is accurate, and secondly, limiting the angle of the heliostat to prevent the heliostat from driving the multi-axis tracking mechanism 7 to rebound due to its own gravity.

[0031] It should be noted that in this paper, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "fixed", "mounted", "connected", "linked" should be understood in a broad sense, for example, "mounted" can be fixed connection, or detachable connection, or integral connection; "connected" can be mechanical connection, or electrical connection; "connection" can be direct connection, or indirect connection through an intermediate medium, or the connection between two elements inside. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-axis tracking device for heliostat, comprising a heliostat body (1), characterized in that, The bottom end of the heliostat body (1) is fixedly connected with a support frame (2), and the bottom end of the opposite side of the support frame (2) is fixedly connected with a control shaft (3), the outside of the central position of the control shaft (3) is movably connected with a connecting shaft (4) through a bearing, the bottom end of the connecting shaft (4) is movably connected with a connecting strip (5), and the bottom end of the connecting strip (5) is fixedly connected with a fixed block (6), the top surface of the fixed block (6) is fixedly connected with a multi-axis tracking mechanism (7), and the two ends of the connecting shaft (4) are provided with grooves (8), and the inside of the groove (8) is movably connected with a fine adjustment limiting mechanism (9).

2. The multiple-axis gimbaling heliostat tracking device of claim 1, wherein, The multi-axis tracking mechanism (7) comprises a drive shaft (701), a servo motor (702), a transmission wheel (703) and a transmission belt (704), the transmission wheel (703) is fixedly connected to the two ends of the drive shaft (701), and the output end of the servo motor (702) is fixedly connected to one end of the drive shaft (701) through a shaft coupling, another transmission wheel (703) is arranged above the transmission wheel (703) at the two ends of the drive shaft (701), and the transmission wheels (703) on the same side are connected through the transmission belt (704).

3. The multiple-axis gimbaling heliostat tracking device of claim 2, wherein, The multi-axis tracking mechanism (7) further comprises a guide wheel (705), a connecting frame (706) and a fixed shaft (707), the guide wheel (705) is provided with two and located inside the transmission belt (704), the guide wheel (705) is close to the inner wall of the transmission belt (704), the connecting frame (706) is V-shaped and the top end thereof is movably connected to the shaft center of the guide wheel (705) through a rotating shaft, respectively, and the bottom end of the fixed shaft (707) is fixedly connected to the bottom end of the opposite side of the connecting frame (706).

4. The multiple-axis gimbaling heliostat tracking device of claim 3, wherein, The top end of the fixed shaft (707) is movably connected to the outside of the control shaft (3) through a sleeve ring, the middle position of the drive shaft (701) penetrates the connecting strip (5), and the connecting strip (5) is movably connected through a bearing at the connecting position of the drive shaft (701), and the transmission wheels (703) above the drive shaft (701) are fixedly connected to the outside of the connecting shaft (4).

5. The multiple-axis gimbaling heliostat tracking device of claim 1, wherein, The fine adjustment limiting mechanism (9) comprises a hydraulic rod (901), a pull rope (902) and a guide wheel (903), the two ends of the pull rope (902) are fixedly connected with the hydraulic rod (901), the guide wheel (903) is provided with two and is symmetrically arranged, and the pull rope (902) is close to the hub of the guide wheel (903).

6. The multiple-axis gimbaling heliostat tracking device of claim 5, wherein, The guide wheel (903) is movably connected to the inside of the groove (8) through a rotating shaft, respectively, a connecting hole (10) is horizontally formed in the inside of the connecting shaft (4), and the two ends of the connecting hole (10) extend into the inside of the groove (8).

7. The multiple-axis gimbaling heliostat tracking device of claim 5, wherein, The middle part of the pull rope (902) is located in the inside of the connecting hole (10), and the one end of the hydraulic rod (901) away from the pull rope (902) is fixedly connected to the surface of the fixed block (6).

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