Sectional material, power assisting device, connecting piece and photovoltaic tracking system

Abstract

The utility model relates to the technical field of power assisting machinery of rotating shafts, in particular to a section bar, a power assisting device, a connecting piece and a photovoltaic tracking system.The section bar is suitable for manufacturing a shell of a power assisting unit, extends in the length direction and comprises a main body, the main body comprises a through cavity, and the through cavity is arranged in the length direction of the section bar and used for containing the power assisting unit; the cross section of the through cavity is circular; the outer convex part is arranged on one side of the main body, and the cavity wall of the through cavity is sunken towards the outer convex part to form a first through groove; the second through groove is formed in the groove wall of one side of the first through groove, and the second through groove is used for hooking a coil spring in the power assisting unit; the third through groove is formed in the groove wall of the other side of the first through groove, and the third through groove is used for being connected with a driven part in the power assisting unit. The utility model has the advantages that the process of manufacturing the shell by using the profile is simpler and more efficient, the processing efficiency is effectively improved, and the processing cost is reduced; the shell and the power assisting device can be conveniently and stably placed, and meanwhile the power assisting device can be conveniently connected with the outside.

Description

Technical Field

[0001] The utility model relates to the technical field of power-assisting machinery of a rotating shaft, and in particular to a profile, a power-assisting device, a connecting piece and a photovoltaic tracking system. Background Art

[0002] Shaft transmission technology is widely used. In such applications, the rotating shaft is usually set horizontally, or in other words, it is not set vertically. At this time, the load driven by the rotating shaft, such as windows, car doors, photovoltaic panels, etc., is offset, resulting in the center of gravity of the load driven by the rotating shaft and the central axis of the rotating shaft cannot coincide with each other. Therefore, during the rotation process, the center of gravity of the load driven by the rotating shaft will also rotate around the rotating shaft. Therefore, when the rotating shaft drives the load to move, the following two situations will occur: First, the center of gravity moves from a high place to a low place. At this time, the torque output by the power source (such as a motor) used to drive the load to move through the rotating shaft is usually to keep the load from rotating freely, that is, to overcome the influence of gravity; second, the center of gravity moves from a low place to a high place. At this time, the torque output by the power source must not only overcome the effect of gravity, but also be able to drive the load to move.

[0003] In the above two cases, when the center of gravity of the load and the central axis of the rotating shaft are at the same horizontal position, the gravity influence of the load is the greatest.

[0004] Therefore, when selecting a power source to drive a load driven by a non-vertical transmission shaft to rotate around the axis, the selection of the power source should consider the situation where the torque output can meet the situation when the center of gravity of the load is at the same horizontal position as the central axis of the rotating shaft. When the load rotates around the axis, the power source will be excessive, which will increase the cost.

[0005] To solve this problem, our company's previously filed patent application number 2024207976907 disclosed a power assist device and a photovoltaic tracking system for a rotating shaft, in which the fixing part in the power assist device (equivalent to the outer shell in this application) needs to be connected to the outer end of the coil spring in the power assist unit, and can be connected to the follower in the power assist unit. Its structure adapts to the design of the power assist unit, and the processing procedure is relatively complicated, so the processing cost is high, which is a problem that needs to be solved urgently. Utility Model Content

[0006] As a first aspect of the utility model, a profile is provided, which is suitable for making a housing of a power-assisting unit and extends along a length direction, and includes:

[0007] A main body, the main body comprising a through cavity, the through cavity is arranged along the length direction of the profile, and is used to accommodate the power-assisting unit, and the cross section of the through cavity is circular;

[0008] An outer convex portion is provided on one side of the main body, and the cavity wall of the through cavity is recessed toward the outer convex portion to form a first through groove;

[0009] A second through slot is provided on a side slot wall of the first through slot, and the second through slot is used for hanging a coil spring in the power-assisting unit;

[0010] The third through slot is arranged on the other side slot wall of the first through slot, and the third through slot is used to connect with the driven member in the power-assisting unit.

[0011] Optionally, the profile further includes at least two ribs, wherein the ribs are connected to the main body and / or the outer protrusion, and the ribs are arranged along the length direction of the profile.

[0012] Optionally, the number of the ribs is three, two of the ribs are arranged on the outer side walls of the profile, and one of the ribs is arranged on the bottom of the first through groove.

[0013] Optionally, the rib is provided with a fourth through groove arranged along the length direction of the rib.

[0014] Optionally, the cross section of the fourth through groove is in the shape of an open ring, and the distance between the openings at both ends of the open ring is smaller than the diameter of the open ring.

[0015] Optionally, two side surfaces of the outer protrusion are parallel.

[0016] Optionally, depressions are provided on both side surfaces of the convex portion.

[0017] Optionally, the side of the protruding portion away from the main body is planar.

[0018] As a second aspect of the present utility model, the power assist device comprises:

[0019] A housing made of the profile suitable for the power-assisting unit as described above, for fixed connection with the outside;

[0020] At least one group of power-assisting units is arranged in the through cavity. When there are more than two groups of power-assisting units, the multiple groups of power-assisting units are coaxially arranged.

[0021] The power assist unit comprises:

[0022] A movable part, the movable part and the housing are in rotational cooperation, and an avoidance groove is provided on the movable part;

[0023] A coil spring, the coil spring comprising an outer end and an inner end, the outer end of the coil spring being connected to the second through slot;

[0024] A follower is connected to the inner end of the coil spring, and the follower and the movable member form a rotational fit. The follower includes a transition portion, and the transition portion is arranged between the outer shell and the movable member. The transition portion is used to connect with the third through groove to maintain the deformation of the coil spring, or to connect with the avoidance groove in the movable member to allow the coil spring to deform.

[0025] As the third aspect of the utility model, a connecting piece is provided for installing the power assisting device as described above, comprising: a connecting piece body, one end of which is provided with a recess matching the outer side of the above-mentioned profile, and the other end of which is provided with a fitting surface fitting with the outside.

[0026] As a fourth aspect of the present utility model, a photovoltaic tracking system includes: a photovoltaic support and the power assisting device as described above, and also includes the connecting piece as described above, wherein the power assisting device is connected to the photovoltaic support via the connecting piece.

[0027] The utility model has the advantages that the process of manufacturing the shell by using the profile is simpler and more efficient, which effectively improves the processing efficiency and reduces the processing cost; it is convenient to stably place the shell and the power-assisting device, and it is convenient to connect the power-assisting device to the outside.

[0028] First, the profile of the utility model is formed by integral stretching, and the manufacturing method is simple. Therefore, the process of manufacturing the shell using the profile is simpler and more efficient, which effectively improves the processing efficiency and reduces the processing cost.

[0029] Second, due to considerations for the deadweight of the profile, since the cross-section of the through cavity of the main body is circular and the thickness of the outer wall of the main body is uniform, the cross-section of the main body is also circular. When placing the shell made of the profile and the power-assisting device using the shell, the outer protrusion is placed away from the flat side of the main body, which facilitates the stable placement of the shell and the power-assisting device.

[0030] Third, since the cross-section of the main part of the shell is circular, it is not convenient to connect the connecting piece. The two side surfaces of the outer convex part of the shell are parallel, and there is a depression on the side surface. The connecting piece is provided with a protrusion that cooperates with the depression. The cooperation between the depression and the protrusion plays a limiting role, thereby increasing the stability of the connection between the connecting piece and the shell of the power assist device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following drawings describe in detail the exemplary embodiments disclosed in this application. The same reference numerals represent similar structures in several views of the drawings. Those skilled in the art will understand that these embodiments are non-limiting, exemplary embodiments, and the drawings are only for the purpose of illustration and description, and are not intended to limit the scope of this application. Other embodiments may also accomplish the application intent in this application. It should be understood that the drawings are not drawn to scale. Among them:

[0032] Figure 1 This is a schematic diagram of a profile suitable for a power-assisting unit in an embodiment of the present application;

[0033] Figure 2 for Figure 1 A schematic diagram of the main view;

[0034] Figure 3 This is a schematic diagram of a power assist device in an embodiment of the present application;

[0035] Figure 4 for Figure 3 Explosion diagram of

[0036] Figure 5 for Figure 2 A schematic diagram of a top view of a cross section;

[0037] Figure 6 This is a schematic diagram of the connection between the power assist device and the connecting piece in the embodiment of the present application;

[0038] Figure 7 for Figure 6 Schematic diagram of the front view.

[0039] The marks in the figure are:

[0040] 1. Profile; 11. Main body; 111. Through cavity; 12. Outer convex portion; 121. First through groove; 122. Second through groove; 123. Third through groove; 13. Rib; 131. Fourth through groove;

[0041] 2. End cover; 21. Reserved hole;

[0042] 3. Power assist unit; 31. Movable part; 311. Avoidance groove; 32. Coil spring; 33. Follower; 331. Adapter;

[0043] 4. Connecting piece; 41. Groove; 42. Fitting surface. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described below in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application. It can be understood that, in the absence of conflict, some technical means of the various embodiments described herein can be replaced or combined with each other.

[0045] In the description of this application, if there are terms such as "first", "second", etc., they are only used to distinguish the objects described and do not have any order or technical meaning. Therefore, an object defined as "first", "second", etc. may explicitly or implicitly include one or more of the objects. In addition, "one" or "a" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one, and "multiple" means no less than two.

[0046] In the description of this application, if there are terms such as "connection", "abutment", "installation", "fixation", "contact", "support", "housing", etc., they should be understood in a broad sense. For example, "connection" can be a split connection or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a non-detachable connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can also be the internal connection of two elements or the interaction relationship between two elements. For another example, "abutment" can be a direct abutment or an indirect abutment through an intermediate medium. For another example, "housing" does not necessarily mean complete housing as a whole. The concept also includes the situation where a part protrudes from the outside. For those skilled in the art, the specific meanings of the aforementioned terms in this application can be understood according to the specific circumstances.

[0047] In the description of this application, if there are similar terms such as “A is connected to B in a rotatable manner”, it means that A and B are directly or indirectly connected, and A can rotate relative to B.

[0048] In the description of the specification of the present application, reference to "one embodiment" or "some embodiments" etc. means that one or more embodiments of the present application include a specific feature, structure or characteristic described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in the specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0049] As a first aspect of this embodiment, Figure 1 and Figure 2 As shown, a profile is used to make the shell of the power-assisting unit 3, extending along the length direction, and includes:

[0050] A main body 11, the main body 11 comprises a through cavity 111, the through cavity 111 is arranged along the length direction of the profile 1, and is used to accommodate the power-assisting unit 3, and the cross section of the through cavity 111 is circular;

[0051] The outer convex portion 12 is disposed on one side of the main body 11, and the cavity wall of the through cavity 111 is recessed toward the outer convex portion 12 to form a first through groove 121;

[0052] A second through slot 122 is provided on a side slot wall of the first through slot 121 , and the second through slot 122 is used for hanging the coil spring 32 in the power assist unit 3 ;

[0053] The third through slot 123 is disposed on the other side slot wall of the first through slot 121 , and the third through slot 123 is used to connect with the driven member 33 in the power-assisting unit 3 .

[0054] It should be noted that the profile 1 disclosed in the utility model can be formed by integral stretching, and the manufacturing method is simple. Therefore, the process of manufacturing the shell using the profile 1 is simpler and more efficient, which effectively improves the processing efficiency and reduces the processing cost.

[0055] It should be noted that, in this embodiment, the profile 1 further includes at least two ribs 13, the ribs 13 are connected to the main body 11 and / or the outer protrusion 12, and the ribs 13 are arranged along the length direction of the profile 1; as a preferred embodiment, Figure 1 and Figure 2 As shown, the rib 13 is provided with a fourth through slot 131 arranged along the length direction of the rib 13 .

[0056] Furthermore, in this embodiment, if Figure 1 and Figure 2 As shown, three ribs 13 are arranged on the outer side of the main body 11 , and one rib 13 is arranged at the bottom of the first through groove 121 in the outer protrusion 12 .

[0057] Furthermore, in this embodiment, the cross section of the fourth through groove 131 is in the shape of an open ring, and the distance between the openings at both ends of the open ring is smaller than the diameter of the open ring.

[0058] It should be noted that when the profile 1 is used to make the housing of the power-assisting unit 3, the end cover 2 is also needed to seal the power-assisting unit 3 in the housing. Since the cross section of the fourth through groove 131 is an open ring, bolts are inserted through the open ring to connect the end cover 2. At the same time, since the spacing between the two openings of the open ring is smaller than the diameter of the open ring, it will not affect the use of the bolts. The fourth through groove 131 is designed instead of a through hole for inserting the bolts to facilitate the integral stretching of the profile 1 of this embodiment, so as to simplify the processing technology of the profile 1.

[0059] It should be noted that, in this embodiment, Figure 1 and Figure 2 As shown, out of consideration for the deadweight of the profile 1, since the cross-section of the through cavity 111 of the main body 11 is circular and the thickness of the outer wall of the main body 11 is uniform, the cross-section of the main body 11 is also circular. When placing the shell made of the profile 1 and the power-assisting device using the shell, the outer protrusion 12 is placed away from the flat side of the main body 11, which can facilitate the stable placement of the shell and the power-assisting device, avoid shaking and collision of the profile 1 or the power-assisting device, and avoid deformation or damage to the outer side of the profile 1 or the power-assisting device.

[0060] It should be noted that, in this embodiment, Figure 1 and Figure 2 As shown, since the cross-section of the main body 11 of the shell is circular, it is not convenient to connect the connecting piece 4, and the two side surfaces of the outer protrusion 12 of the shell are parallel, and a depression is provided on the side surface, and a protrusion is provided on the connecting piece 4 to cooperate with the depression. The cooperation between the depression and the protrusion plays a limiting role, thereby increasing the stability of the connection between the connecting piece 4 and the shell of the power-assisting device.

[0061] As a second aspect of this embodiment, Figures 3 to 5 As shown, the power assist device comprises:

[0062] A housing made of the profile 1 suitable for the power-assisting unit 3 as described above, for fixed connection with the outside;

[0063] A group of power-assisting units 3 is arranged in the through cavity 111. When there are more than two groups of power-assisting units 3, the multiple groups of power-assisting units 3 are coaxially arranged;

[0064] The booster unit 3 comprises:

[0065] A movable member 31, wherein the movable member 31 is rotatably matched with the housing, and an avoidance groove 311 is provided on the movable member 31;

[0066] A coil spring 32, wherein the coil spring 32 includes an outer end and an inner end, and the outer end of the coil spring 32 is connected to the second through slot 122;

[0067] The follower 33 is connected to the inner end of the coil spring 32, and the follower 33 and the movable member 31 form a rotational fit. The follower 33 includes a transition portion 331, and the transition portion 331 is arranged between the outer shell and the movable member 31. The transition portion 331 is used to connect with the third through groove 123 to maintain the deformation of the coil spring 32, or to connect with the avoidance groove 311 in the movable member 31 to allow the coil spring 32 to deform.

[0068] It should be noted that when the power assist device of this embodiment is working, under the abutment of the main body 11 of the housing disclosed in this embodiment, the adapter 331 is embedded in the avoidance groove 311;

[0069] When the external load drives the center of gravity of the movable member 31 to rotate from a high position to a low position around the rotation axis, the assisting device accumulates force and drives the driven member 33 to rotate through the avoidance groove 311. The driven member 33 pulls the inner end of the coil spring 32 to deform it until it reaches a predetermined position. The adapter 331 is separated from the avoidance groove 311 and is embedded in the third through groove 123 under the action of the movable member 31, so that the coil spring 32 is in a stable energy storage state.

[0070] When the external load drives the center of gravity of the movable part 31 to rotate from a low position to a high position around the rotation axis, the movable part 31 rotates. When it reaches a predetermined position, the adapter part 331 separates from the third through groove 123 and is re-embedded in the avoidance groove 311. The elastic force of the coil spring 32 acts on the avoidance groove 311 through the adapter part 331 to release energy, thereby assisting the movable part 31 to rotate until the coil spring 32 returns to its initial state.

[0071] It should be noted that, in this embodiment, in order to facilitate the rotational cooperation between the housing disclosed in this embodiment and the movable member 31 in the power assist unit 3, as shown in FIG. Figure 3 and Figure 4 As shown, an end cover 2 is provided on the outer shell, and the profile 1 disclosed in this embodiment forms a rotational fit with the movable part 31 in the power-assisting unit 3 through the end cover 2. At the same time, the end cover 2 can also be used to close the through cavity 111 in the profile 1 disclosed in this embodiment. The end cover 2 is connected to both ends of the profile 1. The power-assisting unit 3 is closed in the profile 1 through the end cover 2, which can prevent the power-assisting unit 3 in the outer shell from being affected by the outside world, thereby extending the service life and avoiding accidental damage caused by the unexpected breakage and jumping out of the coil spring 32 in the power-assisting unit 3.

[0072] It should be noted that a reserved hole 21 corresponding to the fourth through groove 131 in the rib 13 is provided on the end cover 2 , and the fourth through groove 131 on the profile 1 is used to insert a bolt, and the end cover 2 is connected through the reserved hole 21 on the end cover 2 .

[0073] It should be noted that, in this embodiment, the outer end of the coil spring 32 of each group of power-assisting units 3 in the power-assisting device is hooked on the second through slot 122 ; the adapter portion 331 of each group of power-assisting units 3 is matched with the third through slot 123 .

[0074] As the third aspect of this embodiment, a connecting piece is provided for installing the power assist device as described above, comprising: a connecting piece 4 main body 11, one end of the connecting piece 4 main body 11 is provided with a groove 41 which fits with the outer side of the profile 1 as described above, and the other end of the connecting piece 4 main body 11 is provided with a fitting surface 42 which fits with the outside.

[0075] As a fifth aspect of this embodiment, a photovoltaic tracking system includes: a photovoltaic support and the assisting device as described above, and also includes the connecting member 4 as described above, and the housing of the assisting device is connected to the photovoltaic support via the connecting member 4.

Claims

1. A profile suitable for making a housing of a power-assisting unit, characterized in that: Extending along the length direction, including: A main body, the main body comprising a through cavity, the through cavity is arranged along the length direction of the profile, and is used to accommodate the power-assisting unit, and the cross section of the through cavity is circular; An outer convex portion is provided on one side of the main body, and the cavity wall of the through cavity is recessed toward the outer convex portion to form a first through groove; A second through slot is provided on a side slot wall of the first through slot, and the second through slot is used for hanging a coil spring in the power-assisting unit; The third through slot is arranged on the other side slot wall of the first through slot, and the third through slot is used to connect with the driven member in the power-assisting unit.

2. The profile according to claim 1, characterized in that It also includes at least two ribs, wherein the ribs are connected to the main body and / or the outer protrusion, and the ribs are arranged along the length direction of the profile.

3. The profile according to claim 2, characterized in that The number of the ribs is three, two of which are arranged on the outer side of the main body, and one of which is arranged on the bottom of the first through groove in the outer protrusion.

4. The profile according to claim 2, characterized in that The rib is provided with a fourth through groove arranged along the length direction of the rib.

5. The profile according to claim 4, characterized in that The cross section of the fourth through groove is in the shape of an open ring, and the distance between the openings at both ends of the open ring is smaller than the diameter of the open ring.

6. The profile according to claim 1, characterized in that The two side surfaces of the outer protrusion are parallel.

7. The profile according to claim 6, characterized in that Concavities are arranged on both side surfaces of the outer protrusion.

8. The profile according to claim 1, characterized in that The side surface of the outer protrusion away from the main body is flat.

9. A power assist device, characterized in that: include: A housing made of a profile as claimed in any one of claims 1 to 8 suitable for a power-assisting unit, for fixed connection with the outside; At least one group of power-assisting units is arranged in the through cavity. When there are more than two groups of power-assisting units, the multiple groups of power-assisting units are coaxially arranged. The power assist unit comprises: A movable part, the movable part and the housing are in rotational cooperation, and an avoidance groove is provided on the movable part; A coil spring, the coil spring comprising an outer end and an inner end, the outer end of the coil spring being connected to the second through slot; A follower is connected to the inner end of the coil spring, and the follower and the movable member form a rotational fit. The follower includes a transition portion, and the transition portion is arranged between the outer shell and the movable member. The transition portion is used to connect with the third through groove to maintain the deformation of the coil spring, or to connect with the avoidance groove in the movable member to allow the coil spring to deform.

10. A connecting piece, characterized in that: Used for the installation of the power assist device as described in claim 9, comprising: a connector body, one end of which is provided with a recess that matches the outer side of the profile as described in any one of claims 1-8, and the other end of the connector body is provided with a fitting surface that fits with the outside.

11. A photovoltaic tracking system, characterized in that: include: The photovoltaic support and the power-assisting device as claimed in claim 9 further include a connecting piece for the power-assisting device as claimed in claim 10, wherein the power-assisting device is connected to the photovoltaic support via the connecting piece.

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