A photothermal rotary drive

Abstract

The invention discloses a photothermal rotary driver, which relates to the technical field of rotary drive, and comprises a horizontal box body, one side of which is provided with a first reduction motor, a top of which is provided with a horizontal rotating seat, and a pitch box body, a bottom surface of which is fixedly connected with a horizontal flange, the horizontal flange is connected to the horizontal rotating seat by bolts, a second reduction motor is provided at the middle position inside the pitch box body, and vertical flanges are provided on both sides of the pitch box body. The horizontal box body causes the lubricating oil inside the horizontal box body to flow based on the rotation of the horizontal rotating seat, and the pitch box body causes the lubricating oil inside the pitch box body to flow based on the rotation of the vertical flange. The flow of the lubricating oil improves the lubricating effect of the lubricating oil on the first reduction motor and the horizontal box body on the one hand, and on the other hand, the lubricating oil produces a certain damping effect on the rotation of the horizontal rotating seat, thereby improving the rotation accuracy of the horizontal rotating seat.

Description

Technical Field

[0001] The present invention relates to the field of rotary drive technology, and in particular to a photothermal rotary drive. Background Art

[0002] The solar thermal rotary drive is also called a rotary reducer, which is mainly installed at the bottom of the photovoltaic power generation equipment to adjust the pitch angle and horizontal angle of the photovoltaic power generation equipment;

[0003] Existing photothermal rotary drives, such as a high radial load rotary reducer disclosed in Chinese patent application with publication number CN114776793A and a rotary reducer disclosed in Chinese patent application with authorization announcement number CN103115136B, have internal lubrication systems that cannot meet the requirements of use. The main reason is that the lubricating oil has poor fluidity inside the rotary reducer and cannot be automatically filtered, resulting in a shortened life of the worm gear drive mechanism inside the rotary reducer. The additional installation of a circulation and filtration system will greatly increase the production cost of the rotary reducer, which is not conducive to the promotion and use of the rotary reducer. Summary of the invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a photothermal rotary drive to solve the problem that the internal lubrication system of the rotary reducer in the prior art cannot meet the requirements of use. The main reason is that the fluidity of the lubricating oil inside the rotary reducer is poor and the filtration cannot be automatically completed, resulting in a shortened life of the worm gear inside the rotary reducer.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] Specifically, a photothermal rotary drive is provided, including a horizontal box, one side of which is equipped with a first reduction motor, a horizontal rotating seat is installed on the top, and a pitch box, the bottom of which is fixedly connected with a horizontal flange, the horizontal flange and the horizontal rotating seat are connected by bolts, a second reduction motor is installed at the middle position inside the pitch box, and vertical flanges are installed on both sides of the pitch box. The horizontal box makes the lubricating oil inside the horizontal box flow based on the rotation of the horizontal rotating seat, and the pitch box makes the lubricating oil inside the pitch box flow based on the rotation of the vertical flange.

[0007] As a further solution of the present invention: the first reduction motor includes a shell, one end of which is connected to the motor body by bolts, an enveloping worm is arranged inside the shell, and a driving shaft is connected between the enveloping worm and the motor body.

[0008] As a further solution of the present invention: a horizontal driving mechanism is installed inside the horizontal box, and a lubrication cavity is opened on the outside of the horizontal driving mechanism and the outside of the enveloping worm, and the lubrication cavity is filled with lubricating oil.

[0009] As a further solution of the present invention: the horizontal driving mechanism includes a worm wheel, the enveloping worm is meshed with the worm wheel, the top surface of the worm wheel is fixedly connected to the bottom surface of the horizontal rotating seat, a movable inner ring is arranged on the inner side of the worm wheel, and a fixed inner ring is arranged on the inner side of the movable inner ring.

[0010] As a further solution of the present invention: a compression chamber is provided between the worm wheel and the movable inner ring, a piston slider matching the compression chamber is fixedly connected to the inner wall of the worm wheel, and an automatic valve matching the piston slider is fixedly connected to the outer side of the movable inner ring.

[0011] As a further solution of the present invention: the automatic valve includes a valve housing, two external ports are opened inside the valve housing, the external ports are connected to the lubrication chamber, an oil delivery channel is opened inside the valve housing near the external ports, one end of the oil delivery channel away from the external port is connected to the compression chamber, and an oil filter is installed inside the oil delivery channel.

[0012] As a further solution of the present invention: a limit lock tongue is installed in the middle position of the inner side of the valve housing, and push sliders matching the limit lock tongue are inserted at both ends of the valve housing. The push sliders are used to squeeze the limit lock tongue to cause the limit lock tongue to move, and the end of the limit lock tongue away from the valve housing passes through the movable inner ring and acts on the outer side of the fixed inner ring.

[0013] As a further solution of the present invention: a plurality of convex teeth are arranged on the end surface of one end of the limit lock tongue close to the fixed inner ring, and tooth grooves matching the convex teeth are evenly arranged on the outer side surface of the fixed inner ring.

[0014] As a further solution of the present invention: a vertical driving mechanism is arranged inside the pitch box, the structure of the vertical driving mechanism is the same as that of the horizontal driving mechanism, and the output end of the vertical driving mechanism is fixedly connected to the vertical flange.

[0015] As a further solution of the present invention: the structure of the second reduction motor is the same as that of the first reduction motor, and the output end of the second reduction motor is meshed with the input end of the vertical drive mechanism.

[0016] Beneficial effects of the present invention:

[0017] In the present invention, when the first reduction motor drives the horizontal rotating seat to rotate, the rotating horizontal rotating seat can convert part of the power into power to drive the lubricating oil, so that the lubricating oil can flow between the first reduction motor and the horizontal box. The flow of the lubricating oil, on the one hand, improves the lubrication effect of the lubricating oil on the first reduction motor and the horizontal box. On the other hand, the lubricating oil produces a certain damping effect on the rotation of the horizontal rotating seat, so that the rotation accuracy of the horizontal rotating seat is improved. The rotation of the pitch box based on the vertical flange causes the lubricating oil inside the pitch box to flow. The effect of the lubricating oil in the first reduction motor and the pitch box is the same as the working principle of the lubricating oil in the first reduction motor and the horizontal box, and the effect produced is also the same, both of which improve the lubrication effect of the lubricating oil and the rotation accuracy.

[0018] In the present invention, the sealing ring comprises a two-layer structure, namely a metal sealing ring and a high-elasticity rubber ring, and the metal sealing ring and the high-elasticity rubber ring work together to provide a sealing effect for the inner cavity of the housing.

[0019] In the present invention, since the enveloping worm is meshed with the worm wheel, when the motor body drives the enveloping worm to rotate, the rotating enveloping worm will drive the worm wheel to rotate synchronously, and since the top surface of the worm wheel is fixedly connected to the bottom surface of the horizontal rotating seat, the rotating worm wheel will drive the horizontal rotating seat to rotate synchronously, so that the horizontal rotating seat can rotate freely in the horizontal direction. During the rotation of the enveloping worm and the worm wheel, since the enveloping worm and the worm wheel are both inside the lubrication cavity, and the lubrication cavity is filled with lubricating oil, the enveloping worm and the worm wheel will be lubricated by the lubricating oil during operation, thereby reducing friction and extending the life of the enveloping worm and the worm wheel.

[0020] In the present invention, when the enveloping worm drives the worm wheel to rotate, the rotating worm wheel will drive the piston slider to rotate synchronously. Since the piston slider is matched with the compression chamber, when the piston slider moves in the compression chamber, when the automatic valve does not move, the compression chamber will be divided into two chambers, one of which sucks lubricating oil from the lubricating chamber, and the other chamber discharges the lubricating oil into the lubricating chamber. Since the total volume of the compression chamber does not change during the movement of the piston slider, the lubricating oil will form fluidity between the compression chamber and the lubricating chamber, and the resistance of the lubricating oil will act on the worm wheel through the piston slider. The worm wheel directly drives the horizontal rotating seat to rotate, so the damping effect of the lubricating oil will also act on the horizontal rotating seat, making the steering angle of the horizontal rotating seat easy to control, thereby improving the accuracy of the steering angle of the horizontal rotating seat.

[0021] In the present invention, in the process of the compression chamber sucking in and discharging the lubricating oil, the lubricating oil will inevitably pass through the oil delivery channel, and an oil filter is installed inside the oil delivery channel. Therefore, when the lubricating oil passes through the oil delivery channel, the oil filter will filter the lubricating oil to remove solid waste in the lubricating oil and make the lubricating oil purer. The specifications and models of the oil filter are adaptively selected by technical personnel in this field according to the model of the lubricating oil and the volume of the oil delivery channel. Therefore, the horizontal driving mechanism can not only make the lubricating oil in the lubricating chamber fluid, but also filter the lubricating oil to ensure the quality of the lubricating oil and extend the service life of the enveloping worm and the worm wheel.

[0022] In the present invention, during the rotation of the worm gear, the worm gear will continuously squeeze a cavity of the compression chamber through the piston slider. In extreme cases, after the cavity is completely squeezed, the piston slider will contact one side of the automatic valve. At this time, the piston slider will squeeze the pushing slider on one side of the valve housing, causing the pushing slider to move toward the inner end of the valve housing. The moving pushing slider will squeeze the limiting lock tongue, causing the limiting lock tongue to overcome the elastic force of the spring and move toward the inner end of the valve housing. Even if the limiting lock tongue is out of contact with the outer side surface of the fixed inner ring, the automatic valve will be automatically unlocked. If the worm gear still needs to continue to move in this direction, the worm gear will drive the moving inner ring to rotate synchronously through the piston slider and the automatic valve to ensure that the moving inner ring will not affect the rotation of the worm gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the structure of the photothermal rotary driver of the present invention;

[0025] Figure 2 This is a front view of the photothermal rotary actuator of the present invention;

[0026] Figure 3 It is a front view of the horizontal box of the present invention;

[0027] Figure 4 is a cross-sectional view of a horizontal box of the present invention;

[0028] Figure 5 is a cross-sectional view of the horizontal drive mechanism of the present invention;

[0029] Figure 6 is a cross-sectional view of the automatic valve of the present invention;

[0030] Figure 7 yes Figure 6 A partial enlarged view of the middle A;

[0031] Figure 8 is a side view of the pitch box of the present invention;

[0032] Fig. 9 It is a schematic diagram of the partial internal structure of the pitch box of the present invention.

[0033] Figure numerals: 1. horizontal box; 11. horizontal rotating seat; 12. horizontal driving mechanism; 121. worm gear; 122. moving inner ring; 123. compression chamber; 124. piston slider; 125. automatic valve; 1251. valve housing; 1252. external port; 1253. oil delivery channel; 1254. pushing slider; 1255. limiting lock tongue; 126. fixed inner ring; 13. lubrication chamber; 2. first reduction motor; 21. housing; 22. motor body; 23. driving shaft; 24. enveloping worm; 25. sealing ring; 26. tapered roller bearing; 3. pitch box; 31. horizontal flange; 32. vertical driving mechanism; 33. vertical flange; 4. second reduction motor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] like Figure 1 - Fig. 9As shown, the present invention discloses a photothermal rotary driver, comprising a horizontal box 1, one side of which is equipped with a first reduction motor 2, and the top of which is equipped with a horizontal rotating seat 11. It should be noted that the horizontal box 1 can be fixed on a horizontal plane by bolts, and the output end of the first reduction motor 2 is used to drive the horizontal rotating seat 11 so that the horizontal rotating seat 11 can rotate freely in the horizontal direction. The bottom surface of the pitch box 3 is fixedly connected with a horizontal flange 31, and the horizontal flange 31 is connected to the horizontal rotating seat 11 by bolts. In this way, when the horizontal rotating seat 11 rotates, the pitch box 3 can be driven to rotate synchronously by the horizontal flange 31. A second reduction motor 4 is installed in the middle position inside the pitch box 3, and vertical flanges 33 are installed on both sides of the pitch box 3. The output end of the second reduction motor 4 is used to drive the vertical flange 33 so that the vertical flange 33 can rotate freely in the vertical direction, and the vertical flange 33 can be connected to the corresponding product by bolts. When the vertical flange 33 rotates, the pitch angle of the product can be adjusted, and the horizontal rotating seat 11 can be adjusted by the pitch box 3. The horizontal angle of the product is adjusted so that the product can be adjusted accordingly according to the actual situation. The horizontal box 1 is based on the rotation of the horizontal rotating seat 11 to make the lubricating oil inside the horizontal box 1 flow. It should be noted that when the first reduction motor 2 drives the horizontal rotating seat 11 to rotate, the rotating horizontal rotating seat 11 can convert part of the power into the power to drive the lubricating oil, so that the lubricating oil can flow between the first reduction motor 2 and the horizontal box 1. On the one hand, the flow of the lubricating oil improves the lubrication effect of the lubricating oil on the first reduction motor 2 and the horizontal box 1. On the other hand, the lubricating oil has a certain damping effect on the rotation of the horizontal rotating seat 11, so that the rotation accuracy of the horizontal rotating seat 11 is improved. The pitch box 3 is based on the rotation of the vertical flange 33 to make the lubricating oil inside the pitch box 3 flow. The effect of the lubricating oil in the first reduction motor 2 and the pitch box 3 is the same as the working principle of the lubricating oil in the first reduction motor 2 and the horizontal box 1, and the effect produced is also the same, both of which improve the lubrication effect of the lubricating oil and the rotation accuracy.

[0037] Example 2

[0038] like Figure 3 and Figure 4As shown, the first reduction motor 2 includes a housing 21, one end of the housing 21 is connected to a motor body 22 by bolts, an enveloping worm 24 is arranged inside the housing 21, and a drive shaft 23 is connected between the enveloping worm 24 and the motor body 22. It should be noted that tapered roller bearings 26 are installed on the side surfaces of both ends of the housing 21 near the enveloping worm 24, and the tapered roller bearings 26 are directly supported on the side surfaces of both ends of the enveloping worm 24, so that the enveloping worm 24 can rotate freely inside the housing 21, and sealing rings 25 are installed on both ends of the housing 21. It should be noted that the sealing ring 25 includes a two-layer structure, namely a metal sealing ring and a high-elasticity rubber ring, which provide a sealing effect for the inner cavity of the housing 21 through the joint action of the metal sealing ring and the high-elasticity rubber ring. When in use, the motor body 22 is opened first, and the motor body 22 will drive the enveloping worm 24 to rotate through the drive shaft 23.

[0039] A horizontal driving mechanism 12 is installed inside the horizontal box 1. A lubrication cavity 13 is provided on the outside of the horizontal driving mechanism 12 and the outside of the enveloping worm 24. The lubrication cavity 13 is filled with lubricating oil. Since the lubrication cavity 13 is filled with lubricating oil, the enveloping worm 24 is always lubricated by the lubricating oil during rotation, thereby reducing friction.

[0040] like Figure 4 and Figure 5 As shown, the horizontal driving mechanism 12 includes a worm wheel 121, an enveloping worm 24 meshing with the worm wheel 121, the top surface of the worm wheel 121 is fixedly connected to the bottom surface of the horizontal rotating seat 11, a movable inner ring 122 is provided on the inner side of the worm wheel 121, and a fixed inner ring 126 is provided on the inner side of the movable inner ring 122. It should be noted that, since the enveloping worm 24 meshes with the worm wheel 121, when the motor body 22 drives the enveloping worm 24 to rotate, the rotating enveloping worm 24 will drive the worm wheel 121 to rotate synchronously. It is fixedly connected to the bottom surface of the horizontal rotating seat 11, so the rotating worm wheel 121 will drive the horizontal rotating seat 11 to rotate synchronously, so that the horizontal rotating seat 11 can rotate freely in the horizontal direction. During the rotation of the enveloping worm 24 and the worm wheel 121, since the enveloping worm 24 and the worm wheel 121 are both located inside the lubrication cavity 13, and the lubrication cavity 13 is filled with lubricating oil, the enveloping worm 24 and the worm wheel 121 will be lubricated by the lubricating oil during operation, thereby reducing friction and extending the service life of the enveloping worm 24 and the worm wheel 121.

[0041] like Figure 5As shown, a compression chamber 123 is provided between the worm wheel 121 and the movable inner ring 122, a piston slider 124 matching the compression chamber 123 is fixedly connected to the inner wall of the worm wheel 121, and an automatic valve 125 matching the piston slider 124 is fixedly connected to the outer side of the movable inner ring 122. When the enveloping worm 24 drives the worm wheel 121 to rotate, the rotating worm wheel 121 drives the piston slider 124 to rotate synchronously. Since the piston slider 124 matches the compression chamber 123, when the piston slider 124 moves in the compression chamber 123, the compression chamber 123 will be divided into two chambers in the case where the automatic valve 125 does not move. One cavity sucks lubricating oil from the lubricating cavity 13, and the other cavity discharges the lubricating oil into the lubricating cavity 13. Since the total volume of the compression cavity 123 does not change during the movement of the piston slider 124, the lubricating oil will form fluidity between the compression cavity 123 and the lubricating cavity 13. The resistance of the lubricating oil will act on the worm gear 121 through the piston slider 124. The worm gear 121 directly drives the horizontal rotating seat 11 to rotate, so the damping effect of the lubricating oil will also act on the horizontal rotating seat 11, making the steering angle of the horizontal rotating seat 11 easy to control, thereby improving the accuracy of the steering angle of the horizontal rotating seat 11.

[0042] like Figure 5 and Figure 6As shown, the automatic valve 125 includes a valve housing 1251, and two external ports 1252 are provided inside the valve housing 1251. The external ports 1252 are connected to the lubrication chamber 13. The two external ports 1252 can also be connected to an external arc-shaped pipe, so that the two ports are at different positions in the lubrication chamber 13, so that the lubricating oil can be sucked in and discharged at different positions in the lubrication chamber 13, respectively, to facilitate the full flow of the lubricating oil. The specifications of the arc-shaped pipe are adaptively selected by those skilled in the art according to the specific internal space of the lubrication chamber 13 to ensure that the arc-shaped pipe will not be blocked when it rotates synchronously with the moving inner ring 122. An oil delivery channel 1253 is provided inside the valve housing 1251 near the external port 1252, and the end of the oil delivery channel 1253 away from the external port 1252 is connected to the compression chamber 123, so that the lubricating oil in the lubrication chamber 13 can pass through The external port 1252 enters the oil delivery channel 1253, and then enters the compression chamber 123 through the oil delivery channel 1253. An oil filter is installed inside the oil delivery channel 1253. It should be noted that in the process of the compression chamber 123 sucking in and discharging the lubricating oil, the lubricating oil will inevitably pass through the oil delivery channel 1253, and an oil filter is installed inside the oil delivery channel 1253. Therefore, when the lubricating oil passes through the oil delivery channel 1253, the oil filter will filter the lubricating oil to remove solid waste in the lubricating oil and make the lubricating oil purer. The specifications and models of the oil filter are adaptively selected by technical personnel in this field according to the model of the lubricating oil and the volume of the oil delivery channel 1253. Therefore, the horizontal drive mechanism 12 can not only make the lubricating oil in the lubricating chamber 13 fluid, but also filter the lubricating oil to ensure the quality of the lubricating oil and extend the service life of the enveloping worm 24 and the worm wheel 121.

[0043] like Figure 5 , Figure 6 and Figure 7As shown, a limit lock tongue 1255 is installed at the middle position of the inner side of the valve housing 1251, and a spring is installed at one end of the limit lock tongue 1255 close to the valve housing 1251, and the spring provides elastic force for the limit lock tongue 1255. Pushing sliders 1254 matching the limit lock tongue 1255 are inserted at both ends of the valve housing 1251. The pushing sliders 1254 are used to squeeze the limit lock tongue 1255 to make the limit lock tongue 1255 displaced. The end of the limit lock tongue 1255 away from the valve housing 1251 passes through the movable inner ring 122 and acts on the fixed inner ring 12 6, it should be noted that inclined surfaces are provided on both sides of the limiting lock tongue 1255 near the pushing slider 1254, and an end face of the pushing slider 1254 near the limiting lock tongue 1255 is provided with a pushing surface that matches the inclined surface of the pushing slider 1254. It should also be noted that the elastic force of the spring needs to be greater than the pressure applied by the lubricating oil in the compression chamber 123 to the pushing slider 1254, to ensure that when the pushing slider 1254 is not acted upon by other external forces, the elastic force of the spring can squeeze the limiting lock tongue 1255 onto the outer side of the fixed inner ring 126.

[0044] During the rotation of the worm gear 121, the worm gear 121 will continuously squeeze a cavity of the compression chamber 123 through the piston slider 124. In extreme cases, after the cavity is completely squeezed, the piston slider 124 will contact one side of the automatic valve 125. At this time, the piston slider 124 will squeeze the pushing slider 1254 on the side of the valve housing 1251, so that the pushing slider 1254 moves toward the inner end of the valve housing 1251. The moving pushing slider 1254 will squeeze the limiting lock tongue 1255, so that the limiting lock tongue 1255 overcomes the elastic force of the spring and moves toward the inner end of the valve housing 1251. Even if the limiting lock tongue 1255 is out of contact with the outer side of the fixed inner ring 126, the automatic valve 125 will be automatically unlocked. If the worm gear 121 needs to continue to move in this direction, the worm gear 121 will be unlocked. 21 will drive the movable inner ring 122 to rotate synchronously through the piston slider 124 and the automatic valve 125, ensuring that the movable inner ring 122 will not affect the rotation of the worm gear 121. When the worm gear 121 needs to rotate in the opposite direction, the piston slider 124 will break away from the contact with one side of the automatic valve 125, that is, the pushing slider 1254 on this side is not squeezed by the piston slider 124. Since the elastic force of the spring is greater than the pressure exerted by the lubricating oil in the compression chamber 123 on the pushing slider 1254, the elastic force of the spring will squeeze the limiting lock tongue 1255 again on the outer surface of the fixed inner ring 126, fixing the position of the automatic valve 125, that is, fixing the position of the movable inner ring 122. At this time, when the worm gear 121 rotates, it will inhale and discharge the lubricating oil through the compression chamber 123, so that the lubricating oil in the lubrication chamber 13 will become fluid.

[0045] like Figure 7As shown, the end face of the limiting lock tongue 1255 close to the fixed inner ring 126 is provided with a plurality of convex teeth, and the outer side surface of the fixed inner ring 126 is evenly provided with tooth grooves matching the convex teeth. It should be noted that when the elastic force of the spring squeezes the limiting lock tongue 1255 onto the outer side surface of the fixed inner ring 126, the convex teeth on the limiting lock tongue 1255 will engage with the tooth grooves on the outer side surface of the fixed inner ring 126, ensuring that the fixed inner ring 126 can fix the automatic valve 125 through the limiting lock tongue 1255 without displacement. When the limiting lock tongue 1255 is out of contact with the outer side surface of the fixed inner ring 126, the limiting lock tongue 1255 and the fixed inner ring 126 are released from the engagement, and the automatic valve 125 can rotate freely at this time.

[0046] Example 3

[0047] like Figure 8 and Fig. 9 As shown, a vertical driving mechanism 32 is provided inside the pitch box 3. The structure of the vertical driving mechanism 32 is the same as that of the horizontal driving mechanism 12. The output end of the vertical driving mechanism 32 is fixedly connected to the vertical flange 33. It should be noted that the way in which the vertical driving mechanism 32 drives the vertical flange 33 to rotate is exactly the same as the way in which the horizontal driving mechanism 12 drives the horizontal rotating seat 11. The lubricating oil flow and filtering methods inside the vertical driving mechanism 32 are also the same, which will not be elaborated here.

[0048] like Figure 8 and Fig. 9 As shown, the structure of the second reduction motor 4 is the same as that of the first reduction motor 2, and the output end of the second reduction motor 4 is meshed with the input end of the vertical drive mechanism 32. It should be noted that the way in which the second reduction motor 4 drives the vertical drive mechanism 32 is the same as the way in which the first reduction motor 2 drives the horizontal drive mechanism 12, and it will not be elaborated here. The only difference between the pitch box 3 and the horizontal box 1 is the difference in spatial position. The horizontal box 1 is horizontally arranged, and the increased rotational power is also in the horizontal direction. The pitch box 3 is vertically arranged, and the rotational power provided is also in the vertical direction. However, the lubricating oil flow and filtering methods inside the two are exactly the same, and both can provide lubrication and damping effects for the driving parts inside the pitch box 3 and the horizontal box 1.

[0049] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A photothermal rotary actuator, characterized in that: include: A horizontal box (1) having a first reduction motor (2) mounted on one side and a horizontal rotating seat (11) mounted on the top; A pitch box (3) has a horizontal flange (31) fixedly connected to its bottom surface, the horizontal flange (31) is connected to the horizontal rotating seat (11) by bolts, a second reduction motor (4) is installed at a middle position inside the pitch box (3), and vertical flanges (33) are installed on both sides of the pitch box (3); The horizontal box body (1) generates fluidity of the lubricating oil inside the horizontal box body (1) based on the rotation of the horizontal rotating seat (11); The pitch box (3) generates fluidity of the lubricating oil inside the pitch box (3) based on the rotation of the vertical flange (33); A horizontal driving mechanism (12) is installed inside the horizontal box (1), and a lubrication cavity (13) is provided on the outside of the horizontal driving mechanism (12) and the outside of the enveloping worm (24), and the lubrication cavity (13) is filled with lubricating oil; The horizontal driving mechanism (12) comprises a worm wheel (121), the enveloping worm (24) meshing with the worm wheel (121), the top surface of the worm wheel (121) being fixedly connected to the bottom surface of the horizontal rotating seat (11), a movable inner ring (122) being arranged on the inner side of the worm wheel (121), and a fixed inner ring (126) being arranged on the inner side of the movable inner ring (122); A compression chamber (123) is provided between the worm wheel (121) and the movable inner ring (122); a piston slider (124) matching the compression chamber (123) is fixedly connected to the inner wall of the worm wheel (121); and an automatic valve (125) matching the piston slider (124) is fixedly connected to the outer side of the movable inner ring (122); The automatic valve (125) comprises a valve housing (1251), two external ports (1252) are provided inside the valve housing (1251), the external ports (1252) are connected to the lubrication chamber (13), an oil delivery channel (1253) is provided inside the valve housing (1251) near the external ports (1252), one end of the oil delivery channel (1253) away from the external ports (1252) is connected to the compression chamber (123), and an oil filter is installed inside the oil delivery channel (1253); A limit lock tongue (1255) is installed at the middle position of the inner side of the valve housing (1251), and push sliders (1254) matching the limit lock tongue (1255) are inserted at both ends of the valve housing (1251). The push sliders (1254) are used to squeeze the limit lock tongue (1255) so that the limit lock tongue (1255) is displaced. The end of the limit lock tongue (1255) away from the valve housing (1251) passes through the movable inner ring (122) and acts on the outer side surface of the fixed inner ring (126).

2. The photothermal rotary actuator according to claim 1, characterized in that: The first reduction motor (2) comprises a housing (21), one end of the housing (21) being connected to a motor body (22) via bolts, an enveloping worm (24) being arranged inside the housing (21), and a driving shaft (23) being connected between the enveloping worm (24) and the motor body (22).

3. The photothermal rotary actuator according to claim 1, characterized in that: A protruding tooth is provided on one end surface of the limiting locking tongue (1255) close to the fixed inner ring (126), and tooth grooves matching the protruding tooth are evenly formed on the outer side surface of the fixed inner ring (126).

4. The photothermal rotary actuator according to claim 1, characterized in that: A vertical drive mechanism (32) is arranged inside the pitch box (3); the structure of the vertical drive mechanism (32) is the same as that of the horizontal drive mechanism (12); and the output end of the vertical drive mechanism (32) is fixedly connected to the vertical flange (33).

5. The photothermal rotary actuator according to claim 4, characterized in that: The structure of the second reduction motor (4) is the same as that of the first reduction motor (2), and the output end of the second reduction motor (4) is meshed with the input end of the vertical drive mechanism (32).

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