Rotary speed reducer and heliostat

Abstract

The utility model provides a rotary speed reducer and a heliostat. The rotary speed reducer comprises a base, a box body and a transmission mechanism, the box body comprises a base section and a supporting section, the base section is arranged on the base, and the base section can rotate relative to the base; the supporting section and the base section are of an integrally-formed structure. The transmission mechanism is arranged between the base and the box body, the transmission mechanism comprises a worm gear and two worms, the two worms are distributed in the circumferential direction of the worm gear at intervals, and the two worms are engaged with the worm gear; wherein the transmission mechanism is configured to transmit driving force to the box body, so that the box body rotates relative to the base; the base section, the supporting section and the adapter shaft seat of the box body of the rotary speed reducer are integrally designed, so that a connecting bolt between the base section and the supporting section is omitted, and the reliability and the overall rigidity of the connection between the base section and the supporting section are remarkably improved; and in cooperation with the design of the double worms, a transmission gap between the worm gear and the worms is eliminated, so that the rotary speed reducer always keeps high-precision transmission.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar heat technical field, specifically, a kind of rotary reducer and heliostat. BACKGROUND

[0002] Heliostat is a kind of adjustable reflector, for reflecting and concentrating solar light on a specific target point or receiver. Its main function is to adjust the angle of mirror, so that the sunlight is reflected on the target position, thereby realizing the effective collection and utilization of solar energy.

[0003] Heliostat azimuth rotation is generally driven by rotary reducer, and the rotary reducer used in current heliostat is mostly single worm transmission structure. When the heliostat using such rotary reducer works under high wind load condition, the lateral force generated by wind load on the whole heliostat will cause the vibration of rotary reducer box, and then lead to the change of meshing condition between worm wheel and worm, finally result in the reduction of transmission precision and stability of rotary reducer, affecting the collection efficiency of solar energy by reflector assembly. SUMMARY

[0004] The utility model provides a kind of rotary reducer and heliostat, to solve the problem of low transmission precision and poor transmission stability of worm wheel and worm when the heliostat in prior art works under high wind load condition.

[0005] The utility model provides a kind of rotary reducer, the rotary reducer includes:

[0006] Base;

[0007] Box, including base section and support section, the base section is installed on the base, and the base section can rotate relative to the base;The support section and the base section are integrally formed structure;

[0008] Transmission mechanism, the transmission mechanism is arranged between the base and the box, the transmission mechanism includes worm wheel and two worms, two worms are distributed along the circumferential direction of the worm wheel, and two worms are engaged with the worm wheel respectively;

[0009] Wherein, the transmission mechanism is configured to transmit driving force to the box, so that the box rotates relative to the base.

[0010] As preferred, two worms are arranged on both sides of the worm wheel, and the axis of two worms is parallel to each other, the axis direction of the worm is perpendicular to the axis direction of the worm wheel.

[0011] As preferred, one end of the worm gear is fixedly arranged on the base along the axial direction, and the other end is arranged into the base section, and the circumferential direction of the worm gear axis is the same as the rotating direction of the base section;

[0012] Two worm gears are rotatably arranged on the base section, so that the base section rotates around the worm gear axis as the rotating center;

[0013] The bearing is arranged between the worm gear and the base section, and the bearing is sleeved on the worm gear.

[0014] As preferred, the base section includes a base body and an end cover, the end cover is arranged on the side of the base body facing the base, and the end cover is sleeved on the worm gear;

[0015] The end cover is arranged on the base body through a plurality of connecting pieces.

[0016] As preferred, the bearing is sleeved on the side of the worm gear close to the base;

[0017] The bearing includes a bearing outer sleeve, a bearing inner sleeve and bearing balls, the bearing balls are arranged between the bearing inner sleeve and the bearing outer sleeve, the bearing outer sleeve is designed in one piece with the end cover, and the bearing inner sleeve is designed in one piece with the worm gear.

[0018] As preferred, a bushing is arranged on the side of the worm gear away from the base and clamped between the base section and the worm gear.

[0019] As preferred, the side of the support section away from the base section is provided with an adapter shaft seat;

[0020] The adapter shaft seat is provided with a first connecting hole penetrating through the adapter shaft seat, or the opposite sides of the adapter shaft seat are respectively provided with a first connecting hole, and the two first connecting holes are blind holes; and / or,

[0021] The box is provided with a plurality of first connecting pieces, each of the first connecting pieces is provided with a second connecting hole, and the centers of the second connecting holes on at least two adjacent first connecting pieces are located on the same straight line.

[0022] The centers of the two blind holes on the adapter shaft seat are located on the same straight line.

[0023] As preferred, the first connecting pieces are arranged on the base section, and the number of the first connecting pieces is two.

[0024] Wherein, the line connecting the centers of the second connecting holes on the two first connecting pieces is the first axis, and the line connecting the centers of the two blind holes is the second axis; the axis of the first connecting hole is parallel to the first axis, or the second axis is parallel to the first axis.

[0025] Preferably, a drive component is also included.

[0026] Two driving components are provided, each corresponding to one of the two worm gears. The driving components are mounted on the base section and are connected to the corresponding worm gear to drive the worm gear to rotate; or...

[0027] The driving component is provided at one time, and is mounted on the base section and driven by any one of the worm gears. A transmission structure is also provided between the two worm gears, and the transmission structure is configured to transmit the driving force generated by the driving component to the other worm gear.

[0028] Preferably, it also includes a control module configured to control the output rotational speed of the two drive components;

[0029] The driving component is a motor.

[0030] This utility model also provides a heliostat, which adopts the rotary reducer described in any of the above technical solutions.

[0031] The beneficial effects of the technical solution of this utility model are as follows:

[0032] 1. This utility model integrates the base section, support section, and transition shaft seat of the rotary reducer housing into a single design, eliminating the need for connecting bolts between the base section and support section and significantly improving the reliability and overall rigidity of the connection between them. Specifically, the housing includes a base section, support section, and transition shaft seat, which are integrated into a single structure. The transition shaft seat is located on the support section on the side away from the base section. The base section further includes a first cover and a second cover, with two second covers spaced circumferentially along the first cover. The support section is located above one of the second covers. This design significantly improves the reliability and overall rigidity of the connection between the base section and support section.

[0033] 2. This utility model eliminates the transmission gap between the worm gear and the worm by setting up a double worm and cooperating with a control module, thereby enabling the rotary reducer to always maintain high-precision transmission. Specifically, there are two drive components, each corresponding to one of the two worm gears. The drive components are mounted on the base section and connected to the corresponding worm gears to rotate them. The drive components are a first motor and a second motor. The first motor is mounted on the base section and connected to the first worm gear, while the second motor is mounted on the base section and connected to the second worm gear. The worm gear connected to the first motor is defined as the first worm gear, and the worm gear connected to the second motor is defined as the second worm gear. When the rotary reducer is working, the first motor first drives the first worm gear to rotate. As the first worm gear rotates, it simultaneously drives the housing to rotate. As the housing rotates, the tooth surfaces of the first and second worm gears and the worm wheel are fully engaged, eliminating the tooth backlash. After eliminating the tooth backlash, the first worm gear stops rotating, and the current of the first motor begins to increase. When the control module detects that the current value exceeds a preset value, it determines that the tooth backlash has been eliminated. Therefore, the control module issues a command to simultaneously start the first and second motors. With the simultaneous start of the first and second motors, the first and second worm gears are driven to rotate respectively, achieving high-precision transmission of the rotary reducer. Attached Figure Description

[0034] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0035] Figure 1 A schematic diagram of the structure of the base and the housing provided by this utility model is shown;

[0036] Figure 2 This invention provides a cross-sectional structural diagram of the base and housing.

[0037] Figure 3 This invention provides a cross-sectional structural diagram of the worm gear, worm, and housing.

[0038] Figure 4 A schematic diagram of the structure of the heliostat provided by this utility model is shown;

[0039] Figure 5 This utility model provides Figure 4 A schematic diagram of the structure at point A in the middle.

[0040] The above figures include the following reference numerals:

[0041] 10. Base; 102. First receiving cavity; 103. Second receiving cavity;

[0042] 20. Housing; 21. Base section; 22. Support section; 23. Adapter bearing; 24. End cover; 25. Base body;

[0043] 30. Worm gear;

[0044] 40. Worm gear;

[0045] 50. Reflector assembly;

[0046] 60. Bearings;

[0047] 70. Guiding section;

[0048] 80. Bushing;

[0049] 90. Telescopic drive component;

[0050] 91. Push rod fixed end; 911. First hinge shaft;

[0051] 92. Push rod moving end;

[0052] 100. Heliostat pusher support; 120. Heliostat main beam support;

[0053] 110. First connecting piece. Detailed Implementation

[0054] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0055] Example 1

[0056] like Figures 1 to 3 As shown, this utility model provides a rotary speed reducer, which includes:

[0057] Base 10;

[0058] The housing 20 includes a base section 21 and a support section 22. The base section 21 is mounted on the base 10 and can rotate relative to the base 10. The support section 22 is integrally formed with the base section.

[0059] The transmission mechanism is located between the base 10 and the housing 20. The transmission mechanism includes a worm wheel 30 and two worms 40. The two worms 40 are distributed at intervals along the circumference of the worm wheel 30, and the two worms 40 mesh with the worm wheel 30 respectively.

[0060] The transmission mechanism is configured to transmit driving force to the housing 20 so that the housing 20 rotates relative to the base 10.

[0061] The heliostat of the rotary reducer in this invention can improve the transmission smoothness and accuracy of the worm gear 30 and worm 40 under high wind load conditions, and improve the efficiency of the heliostat in reflecting sunlight. Specifically, as... Figure 2 As shown, the housing 20 is rotatably mounted on the base 10. Generally, one end of the worm gear 30 along its axial direction is fixed to the base 10. The housing 20 includes a base section 21 and a support section 22. The base section 21 includes a first cover and a second cover. The first cover has a first receiving cavity 102 with an opening on the side facing the base 10. Two second covers are provided, spaced circumferentially along the first cover. Each second cover has a second receiving cavity 103, which communicates with the first receiving cavity 102. The first receiving cavity 102 is adapted to and accommodates the worm gear 30, and the two second receiving cavities 103 are adapted to and accommodate the two worms 40 respectively. This arrangement improves the overall structural rationality of the rotary reducer. The support section 22 is located above one of the second housings and is integrated with the base section 21. Two worm gears 40 mesh with worm wheels 30 respectively. In this embodiment, under high wind load conditions, the worm wheels 30 will not vibrate or shift. Furthermore, the two worm gears 40 mesh with the worm wheels 30 at different positions. This arrangement improves the tightness of the meshing between the worm wheels 30 and the two worm gears 40, reduces the transmission backlash between the worm wheels 30 and the worm gears 40, further improves transmission accuracy, and enhances the efficiency of the heliostat in reflecting sunlight. In this design, separate and stable working environments are provided for the worm wheels 30 and the two worm gears 40, reducing accidental interference between the two worm gears 40 during operation and minimizing external influences on the worm wheels 30 and the two worm gears 40, thus improving transmission stability and reliability.

[0062] In the aforementioned specific embodiment, the worm gear 30 is fixedly mounted on the base 10, while the two worms 40 are rotatably mounted in the housing 20. Of course, in other embodiments of this solution, the positions of the worm gear 30 and the two worms 40 can be interchanged. For example, the two worms 40 can be rotatably mounted on the base 10, and one axial end of the worm gear 30 is fixedly mounted on the housing 20, with each worm 40 meshing with the worm gear 30. This design still allows the housing 20 to rotate through the rotation of the two worms 40. The specific arrangement can be designed according to actual conditions. Preferably, one axial end of the worm gear 30 is fixedly mounted on the base 10, while the two worms 40 are rotatably mounted in the housing 20.

[0063] Furthermore, in some other embodiments of this solution, the base segment 21 may not be divided into a first cover and a second cover. For example, the base segment 21 may be an integral shell. The specific shape of the base segment 21 is not limited here and can be designed according to the actual situation. The integrated design between the base segment 21 and the support segment 22 may be integrally formed during casting or the base segment 21 and the support segment 22 may be welded together. There are no restrictions here and the design can be designed according to the actual situation.

[0064] In this embodiment, optimally, two worms 40 are positioned on both sides of the worm wheel 30, with their axes parallel to each other and their axial directions perpendicular to the axial direction of the worm wheel 30. When the two worms 40 are parallel and symmetrically distributed on both sides of the worm wheel 30, they can evenly distribute torque, avoiding excessive force on one side of the worm wheel 30. This not only improves the stability of the transmission between the worm wheel 30 and the worm 40 but also reduces structural deformation and vibration caused by unbalanced forces, further enhancing transmission accuracy. The synchronous drive of the two parallel worms 40 reduces the relative slippage between the worm wheel 30 and the worm 40, thereby reducing the tooth surface wear rate. This reduction in wear not only extends the service life of the transmission mechanism but also reduces maintenance costs and improves the overall reliability of the system. Of course, in some other embodiments of this solution, the axes of the two worms 40 may not be parallel to each other. For example, the axes of the two worms 40 may form a 90° angle or any other angle. The position of the two worms 40 in the circumferential direction of the worm wheel 30 can be designed according to the actual situation, as long as the axial direction of any worm 40 is perpendicular to the axial direction of the worm wheel 30.

[0065] In this embodiment, a bearing 60 is provided between the worm gear 30 and the base section 21, and the bearing 60 is sleeved on the worm gear 30. Specifically, as shown in the attached figure... Figure 2As shown, the worm gear 30 includes a toothed section and an assembly section connected to each other along the axial direction. The assembly section is fixedly mounted on the base 10. Two worms 40 mesh with the toothed sections respectively. A bearing 60 is located at the opening of the base section 21. The bearing 60 is sleeved on the outside of the assembly section of the worm gear 30. The outer sleeve of the bearing 60 abuts against the housing 20 and rotates synchronously with the housing 20. The inner sleeve of the bearing 60 is sleeved on the assembly section of the worm gear 30 and fixed relative to the assembly section of the worm gear 30. By setting the bearing 60, the stability of the housing 20 when rotating around the worm gear 30 can be improved, effectively reducing the phenomenon of accidental positional displacement between the worm gear 30 and the housing 20. It can also effectively reduce the kinematic friction between the housing 20 and the worm gear 30, improve the smoothness and stability of the rotation of the housing 20, and increase the service life of the rotary reducer.

[0066] In this embodiment, bearing 60 is a ball bearing, but it is not limited to ball bearings. For example, bearing 60 can be a tapered roller bearing, a self-aligning roller bearing, or a deep groove ball bearing, etc. The number and type of bearing 60 are not limited here, and can be designed according to the actual situation.

[0067] In other embodiments, see Figure 2 As shown, the base section 21 includes a base body 25 and an end cap 24. The end cap 24 is mounted on the side of the base body 25 facing the base 10 and is sleeved on the worm gear 30. The end cap 24 is mounted to the base body 25 via several connecting members. In this embodiment, the connecting members are screws, rivets, bolts, or other connecting members. Specifically, the base body 25 and the end cap 24 are connected by welding; preferably, the base body 25 and the end cap 24 are connected by connecting members.

[0068] Furthermore, the bearing 60 is mounted on the worm gear 30 near the base 10. The bearing 60 includes a bearing outer sleeve, a bearing inner sleeve, and bearing balls. The bearing balls are disposed between the bearing inner sleeve and the bearing outer sleeve. The bearing outer sleeve is integrated with the end cover 24, and the bearing inner sleeve is integrated with the worm gear 30. For details, please refer to the appendix. Figure 2 As shown, the bearing 60 is disposed within the opening of the base section 21, and is sleeved on the outer periphery of the assembly section of the worm gear 30 and fixedly mounted on the assembly section. The bearing outer sleeve of the bearing 60 is fixedly mounted on the end cover 24. This arrangement further enhances the stability and ease of connection between the bearing 60 and the housing 20. In this design, the bearing outer sleeve and end cover 24 are integrated, and the bearing inner sleeve and worm gear 30 are integrated. This integrated design can be either welded or cast, depending on the specific circumstances.

[0069] In other embodiments, the rotary reducer further includes a guide portion 70, which is disposed on the housing 20 and located within the first receiving cavity 102. One end of the worm gear 30, away from the base 10, is rotatably disposed within the guide portion 70 and guides it. This arrangement improves the stability and motion accuracy of the housing 20 during rotation. The guide portion 70 provides guidance for the housing 20 and reduces direct contact and friction between the housing 20 and the worm gear 30, thereby improving the stability of the housing 20 during rotation around the worm gear 30.

[0070] Furthermore, the guide section 70 and the housing 20 are integrally formed, which improves the stability of the connection between the guide section 70 and the housing 20 as well as the structural strength.

[0071] Furthermore, the rotary reducer also includes a bushing 80, which is located inside the guide portion 70 and fitted onto the end of the worm gear 30 furthest from the base 10. The bushing 80 further reduces friction between the housing 20 and the worm gear 30, reduces wear, improves the motion accuracy and stability of the housing 20, and also increases the contact area with the housing 20, thereby giving the rotary reducer excellent anti-tipping ability.

[0072] like Figure 1 As shown, in other embodiments, a transition bearing 23 is provided on the side of the support section 22 away from the base section 21; the transition bearing 23 is provided with a first connecting hole penetrating the transition bearing 23, or, the transition bearing 23 is provided with first connecting holes on opposite sides along the axial direction, and the two first connecting holes are blind holes, wherein the centers of the two blind holes on the transition bearing 23 are located on the same straight line; and / or, a plurality of first connecting pieces 110 are provided on the housing 20, each of the first connecting pieces 110 is provided with a second connecting hole, and the centers of the second connecting holes on at least two adjacent first connecting pieces 110 are located on the same straight line.

[0073] For details, please refer to the appendix. Figure 1 As shown, under normal circumstances, the adapter bearing 23, the base section 21, and the support section 22 are an integrated structure, and the adapter bearing 23 is located on the side of the support section 22 away from the base section 21. The adapter bearing 23 has a through first connecting hole, which is used to install the first rotating shaft. Figure 5 The heliostat main beam support 120 on the heliostat main beam is installed on the adapter bearing 23 through the first rotating shaft, and then the orientation of the heliostat is adjusted by the rotary reducer.

[0074] Of course, in some other embodiments of this solution, the first connecting hole in the adapter bearing 23 is not a through hole, but two blind holes, and the two blind holes are located on opposite sides of the adapter bearing 23. It is also necessary to ensure that the centers of the two blind holes are on the same straight line (i.e., the center lines of the two blind holes are on the same straight line). In this case, the first rotating shaft installed in the first connecting hole is not a long shaft, but two short shafts. Here, there are no excessive restrictions on the connection method between the housing 20 and the heliostat main beam support 120; the specific design can be made according to the actual usage. Specifically, the first rotating shaft can be installed in the adapter bearing 23, thereby connecting the heliostat main beam support 120 to the adapter bearing 23 through the first rotating shaft.

[0075] Preferably, the adapter shaft seat 23 has a through first connecting hole, and the first rotating shaft is rotatably disposed in the first connecting hole.

[0076] Typically, a first connecting piece 110 is provided on the second housing on the side away from the support section 22. The number of first connecting pieces 110 is not limited. Each first connecting piece 110 is provided with a second connecting hole. The second connecting holes on several first connecting pieces 110 must satisfy the condition that the centers of the second connecting holes on at least two adjacent first connecting pieces 110 are located on the same straight line (i.e., the center lines of the two second connecting holes are on the same straight line), for installing a linear braking mechanism, thereby controlling the pitch of the heliostat mirror surface through the linear braking mechanism. The heliostat structure with the rotary reducer in this scheme will be described in the subsequent embodiment two.

[0077] Furthermore, the adapter shaft 23 is mounted on the support section 22 on the side away from the base section 21; the first connecting piece 110 is mounted on the second cover on the side away from the support section 22, and there are two first connecting pieces 110; wherein, the line connecting the centers of the second connecting holes on the two first connecting pieces 110 is the first axis, and the line connecting the centers of the two blind holes is the second axis; the axis of the first connecting hole is parallel to the first axis, or the second axis is parallel to the first axis. Of course, in some other embodiments of this solution, the axis of the first connecting hole may not be parallel to the first axis, or the second axis may not be parallel to the first axis, as long as it can drive the heliostat mirror to perform pitch adjustment after the linear braking mechanism is installed, and the specific design can be made according to the actual situation. Preferably, the axis of the first connecting hole is parallel to the first axis, or the second axis is parallel to the first axis.

[0078] In other embodiments, the rotary reducer further includes two drive components, each corresponding to one of the two worm gears 40. The drive components are mounted on the base section 21 and are driven to rotate the corresponding worm gear 40. Alternatively, one drive component is mounted on the base section 21 and driven to rotate any one of the worm gears 40. A transmission structure is also provided between the two worm gears 40, configured to transmit the driving force generated by the drive component to the other worm gear 40.

[0079] For details, please refer to the appendix. Figure 3 As shown, in general, the driving components include a first motor and a second motor. The first motor is mounted on the housing 20 and driven by the first worm gear 40, while the second motor is mounted on the housing 20 and driven by the second worm gear 40. This configuration improves the convenience and flexibility of driving the two worm gears 40. Of course, in some special implementations, only one motor is used, mounted on the housing 20, and driven by either worm gear 40. A transmission structure is also provided between the two worm gears 40, configured to transmit the driving force generated by the driving components to the other worm gear 40 (i.e., the worm gear 40 without a motor). The specific configuration can be designed according to the actual usage.

[0080] In other embodiments, the rotary reducer further includes a control module configured to control the output speed of the first motor and the second motor, one specific control method being as follows;

[0081] The worm gear 40 driven by the first motor is the first worm gear, and the worm gear 40 driven by the second motor is the second worm gear. When the rotary reducer is working, the first motor first drives the first worm gear to rotate. As the first worm gear rotates, it simultaneously drives the housing 20 to rotate. As the housing 20 rotates, the tooth surfaces of the first worm gear, the second worm gear, and the worm wheel 30 are completely engaged, and the tooth backlash is eliminated. After the tooth backlash is eliminated, the first worm gear stops rotating, and the current of the first motor begins to increase. When the control module detects that the current value exceeds the preset value, it determines that the tooth backlash has been eliminated. Therefore, the control module issues a command to start the first motor and the second motor simultaneously. With the simultaneous start of the first motor and the second motor, the first worm gear and the second worm gear are driven to rotate respectively, realizing the high-precision transmission of the rotary reducer.

[0082] Here, there are many ways for the control module to control the two motors, which will not be listed one by one. In other words, the control module only needs to be able to control the output speed of the two motors.

[0083] Example 2

[0084] This embodiment discloses a heliostat, which adopts the rotary reducer in any of the schemes in Embodiment 1. The heliostat also includes a column, a telescopic drive 90, a reflector assembly 50, a heliostat push rod support 100, and a heliostat main beam support 120. The rotary reducer is used to adjust the azimuth angle (i.e., orientation) of the reflector assembly 50, the telescopic drive 90 is used to adjust the pitch angle of the reflector assembly 50, and the reflector assembly 50 is used to reflect sunlight.

[0085] For details, please refer to the appendix. Figures 4 to 5 As shown, typically, one end of the column is mounted on the ground along its axial direction, and the rotary reducer is mounted on the other end of the column along its axial direction via the base 10 and fixed by a connector, which can be a screw, rivet, bolt, or other type of connector. The reflector assembly 50 includes a main beam and a reflector surface. The reflector surface is fixedly mounted on the main beam and is used to reflect sunlight. The number of heliostat main beam supports 120 is generally two, and they are spaced apart along the axial direction of the main beam and fixed to it. The two heliostat main beam supports 120 are mounted to the rotary reducer via a first rotating shaft. The heliostat is mounted on the adapter 23, and the orientation of the heliostat is adjusted by the rotation of the rotary reducer. There are two heliostat push rod supports 100, which are also spaced along the axial direction of the main beam and fixed on the main beam. The two heliostat push rod supports 100 and the two first connecting pieces 110 are equipped with telescopic drive components 90. The telescopic drive components 90 can extend and retract to change their length. As the telescopic drive components 90 extend and retract, they drive the reflector assembly 50 to rotate around the axis of the adapter 23, thereby achieving precise adjustment of the angle of the reflector assembly 50.

[0086] In this design, when the housing 20 rotates, the reflector assembly 50 and the telescopic drive 90 will rotate synchronously with the housing 20. At the same time, the telescopic drive 90 can move independently to adjust the pitch angle of the reflector assembly 50 in another direction.

[0087] Furthermore, the telescopic drive component 90 is a linear braking mechanism, specifically an electric push rod. The telescopic drive component 90 includes a push rod fixed end 91 and a push rod moving end 92 that slide against each other. The end of the push rod fixed end 91 that is axially closer to the push rod moving end 92 is the first end of the push rod fixed end 91, and the end of the push rod moving end 92 that is axially farther away from the push rod fixed end 91 is the second end of the push rod moving end 92. Each of the two heliostat push rod supports 100 has a first hinge hole. The first end of the push rod fixed end 91 is located between the two heliostat push rod supports 100, and the two sides of the first end of the push rod fixed end 91 are respectively... A first hinge shaft 911 is provided, with each hinge shaft 911 corresponding to a first hinge hole. The first hinge shaft 911 is rotatably disposed within the first hinge hole. Two first connecting pieces 110 are provided, each mounted on the housing 20, and each first connecting piece 110 has a second hinge hole. The second end of the push rod moving end 92 is located between the two first connecting pieces 110. Two second hinge shafts are arranged opposite each other at the second end of the push rod moving end 92, with each second hinge shaft corresponding to a second hinge hole. The second hinge shafts are rotatably disposed within the second hinge holes. The heliostat push rod support 100 and the first connecting pieces 110 further optimize the connection structure between the telescopic drive component 90, the reflector assembly 50, and the housing 20, improving the structural and motion stability of the heliostat.

[0088] Specifically, when the telescopic drive 90 extends or retracts, the fixed end 91 and the moving end 92 of the push rod slide against each other, thereby allowing the reflector assembly 50 to adjust its angle around the pivot 23. The introduction of the heliostat push rod support 100 and the first connecting piece 110 makes the connection between the telescopic drive 90, the reflector assembly 50, and the housing 20 more stable and reliable. When the telescopic drive 90 extends or retracts, the fixed end 91 of the push rod rotates within the first hinge hole on the heliostat push rod support 100 via the first hinge shaft 911, while the second hinge shaft of the moving end 92 rotates within the second hinge hole on the first connecting piece 110. This allows the extension or retraction action to be smoothly and stably converted into angle adjustment of the reflector assembly 50, improving the flexibility and accuracy of the heliostat when tracking sunlight.

[0089] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0090] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0091] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0092] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0093] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0094] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A slewing reduction gear, characterized in that The slewing reducer comprises: a base (10); a box body (20) comprising a base section (21) and a support section (22), the base section (21) being arranged on the base (10) and being rotatable relative to the base (10), and the support section (22) being integrally formed with the base section (21); a transmission mechanism arranged between the base (10) and the box body (20), the transmission mechanism comprising a worm wheel (30) and two worm gears (40), the two worm gears (40) being spaced apart along the circumference of the worm wheel (30) and being engaged with the worm wheel (30) respectively; wherein the transmission mechanism is configured to transmit driving force to the box body (20) to rotate the box body (20) relative to the base (10).

2. The slewing reduction machine of claim 1, wherein The two worm gears (40) are arranged on both sides of the worm wheel (30), and the axes of the two worm gears (40) are parallel to each other, and the axis direction of the worm gear (40) is perpendicular to the axis direction of the worm wheel (30).

3. The slewing reduction machine of claim 1, wherein The worm wheel (30) is fixedly arranged on the base (10) at one end along the axis direction, and penetrates into the base section (21) at the other end, and the circumference of the axis of the worm wheel (30) is the same as the rotation direction of the base section (21); The two worm gears (40) are rotatably arranged on the base section (21) respectively to realize rotation of the base section (21) with the axis of the worm wheel (30) as the rotation center; wherein a bearing (60) is arranged between the worm wheel (30) and the base section (21), and the bearing (60) is sleeved on the worm wheel (30).

4. The slewing reduction machine of claim 3, wherein The base section (21) comprises a base body (25) and an end cover (24), the end cover (24) being arranged on one side of the base body (25) facing the base (10), and the end cover (24) being sleeved on the worm wheel (30); wherein the end cover (24) is arranged on the base body (25) by a plurality of connecting pieces.

5. The slewing reduction machine of claim 4, wherein, The bearing (60) is sleeved on the worm wheel (30) on the side close to the base (10); The bearing (60) comprises a bearing outer sleeve, a bearing inner sleeve and bearing balls, the bearing balls being arranged between the bearing inner sleeve and the bearing outer sleeve, the bearing outer sleeve being integrally designed with the end cover (24), and the bearing inner sleeve being integrally designed with the worm wheel (30).

6. The slewing reduction machine of claim 1, wherein Further comprising a bushing (80) arranged on the side of the worm wheel (30) away from the base (10) and clamped between the base section (21) and the worm wheel (30).

7. The slewing reduction machine of claim 1, wherein The support section (22) is provided with an adapter shaft seat (23) on the side away from the base section (21); the adapter shaft seat (23) is provided with a first connecting hole penetrating through the adapter shaft seat (23), or the adapter shaft seat (23) is provided with a first connecting hole on each of the opposite sides, and the two first connecting holes are blind holes, and the centers of the two blind holes on the adapter shaft seat (23) are located on the same straight line; and / or, The box (20) is provided with a plurality of first connecting pieces (110), each of the first connecting pieces (110) is provided with a second connecting hole, and the centers of the second connecting holes on at least two adjacent first connecting pieces (110) are located on the same straight line.

8. The slewing reduction machine of claim 7, wherein, The first connecting piece (110) is arranged on the base section (21), and the number of the first connecting pieces (110) is two. The connecting line of the centers of the second connecting holes of the two first connecting pieces (110) is a first axis, and the connecting line of the centers of the two blind holes is a second axis; the axis of the first connecting hole is parallel to the first axis, or the second axis is parallel to the first axis.

9. The slewing reduction machine of claim 1, wherein, Further comprising a driving member, The driving member is provided with two, and the two driving members are correspondingly provided with the two worms (40), the driving member is arranged on the base section (21), and the driving member is drivingly connected with the corresponding worm (40) to drive the worm (40) to rotate; Or, The driving member is provided with one, the driving member is arranged on the base section (21), and is drivingly connected with any one of the worms (40), and the transmission structure is further provided between the two worms (40), and the transmission structure is configured to transmit the driving force generated by the driving member to the other worm (40).

10. The slewing reduction machine of claim 9, wherein, Further comprising a control module, the control module is configured to control the output rotating speed of the two driving members; The driving member is a motor.

11. A heliostat, characterized in that, The heliostat adopts the slewing reducer according to any one of claims 1 to 10.

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