Cross arm equipment, tower and wind generating set

Abstract

The utility model relates to a cross arm device, a tower and a wind generating set, the cross arm device is used for erecting a wire on the tower, and the cross arm device comprises a connecting assembly which has a preset length and comprises a first end and a second end in the length direction of the connecting assembly, and the first end is configured to be connected with the tower; the adjusting assembly is arranged at the second end, the adjusting assembly comprises an elastic part, a hanging part and a fixing shaft, the hanging part is rotationally connected with the connecting assembly through the fixing shaft, the axial direction of the fixing shaft intersects with the length direction, the elastic part is connected between the hanging part and the connecting assembly, and the hanging part is configured to be connected with the wire so as to tension the wire. According to the cross arm equipment, the tension of the wire can be adjusted, and the safety is improved.

Description

Technical Field

[0001] The present application relates to the technical field of towers, and in particular to a cross arm device, a tower and a wind turbine generator set. Background Art

[0002] Conductors are used to conduct current. As a key component of overhead power lines, they play an important role in collecting and transmitting electric energy and are widely used in power engineering. Taking the field of wind power technology as an example, overhead conductors can connect multiple wind turbines to run in parallel, realize power system networking, and collect and transmit the electric energy generated by wind turbines for use by electrical equipment.

[0003] However, in the related technology, the overhead wires are suspended on the cross arms of independent pole towers. Due to long-term exposure to the natural environment, the stress of the wires changes greatly due to the influence of the climate environment, and the probability of failure is high. When the temperature is low or the wires are covered with ice, the wire tension increases, which increases the load on the wires and pole towers, making it easy for towers to fall and wires to break. When the temperature rises and strong winds are encountered, the wire tension decreases and the line length increases, which makes it easy for short circuits and discharge accidents to occur, reducing the safety and stability of line operation. Utility Model Content

[0004] The present application provides a cross-arm device, a tower and a wind turbine generator set. The cross-arm device can adjust the tension of the conductor, reduce the stress generated by the conductor under the influence of the climate environment during use, reduce the probability of failure, and improve safety performance.

[0005] On the one hand, according to an embodiment of the present application, a cross-arm device is proposed for erecting a conductor on a tower, comprising: a connecting assembly having a predetermined length and including a first end and a second end in its own length direction, the first end being configured to be connected to the tower; an adjusting assembly, arranged at the second end, the adjusting assembly comprising an elastic member, a hanging component and a fixed shaft, the hanging component and the connecting assembly being rotatably connected via the fixed shaft, the axial direction of the fixed shaft intersecting with the length direction, the elastic member being connected between the hanging component and the connecting assembly, and the hanging component being configured to be connected to the conductor to adjust the conductor tension.

[0006] According to one aspect of the embodiment of the present application, the adjustment assembly also includes a fixing seat, which is arranged on the connecting assembly, and the fixing seat is arranged with a second end protruding in the axial direction, and the elastic member is connected to the second end via the fixing seat.

[0007] According to one aspect of the embodiments of the present application, the fixed seat includes: a seat body, which is axially arranged and encloses an installation cavity, and a notch connected to the installation cavity is arranged on the seat body; a limiting portion, two or more limiting portions are spaced apart and distributed in the circumferential direction of the seat body, each limiting portion is connected to the seat body, one end of the hanging component extends into the installation cavity, and an elastic member is connected between each limiting portion and the hanging component, the elastic member is retractable in the circumferential direction, and the hanging component is at least partially protruded from the seat body by the notch and is connected to the wire.

[0008] According to one aspect of an embodiment of the present application, the hanging component includes a rotating body and a rotating shaft, the rotating body is connected to the rotating shaft, the rotating body is located in the installation cavity and is connected to each elastic member, and the rotating shaft is configured to protrude from the seat body by a notch and is connected to the wire.

[0009] According to one aspect of an embodiment of the present application, the rotating body includes: a rotating body, located in the installation cavity; a protrusion, wherein two or more protrusions are spaced apart in the circumferential direction, and a protrusion is arranged between two adjacent limiting portions along the circumferential direction, and an elastic member is respectively connected between the protrusion and the two adjacent limiting portions.

[0010] According to one aspect of the embodiment of the present application, along the axial direction, the height dimension of the rotating body is greater than the height dimension of the protrusion, and the protrusion is provided on one side of the rotating body in the axial direction toward the second end.

[0011] According to one aspect of an embodiment of the present application, the cross arm device further includes a hanging point assembly, which is connected to the rotating shaft and is configured to be connected to the wire.

[0012] According to one aspect of an embodiment of the present application, a recessed portion is provided on the rotating shaft, and the hanging point assembly includes clamping units arranged in pairs and connected to each other, at least parts of the clamping units are recessed away from each other and formed with clamping grooves, the clamping grooves cooperate with the recessed portion, and a connecting hole is provided on at least one clamping unit, which is configured to be connected to a wire.

[0013] According to one aspect of the embodiment of the present application, the cross arm device also includes a mounting plate, the mounting plate is arranged at the second end, and the adjustment assembly is connected to the second end through the mounting plate.

[0014] According to one aspect of the embodiment of the present application, a slide groove is axially arranged on one of the mounting plate and the adjustment assembly, and a plurality of balls are arranged on the other. The balls match the shape of the slide groove and can move along the slide groove.

[0015] According to one aspect of the embodiment of the present application, the elastic member includes at least one of a spring, a rubber block and an airbag.

[0016] According to one aspect of an embodiment of the present application, the connection assembly includes: a cross arm fixing support configured to be connected to a tower; a cross arm member located between the cross arm fixing support and the adjustment assembly, and the cross arm member is connected to the cross arm fixing support and the adjustment assembly.

[0017] According to one aspect of an embodiment of the present application, the cross-arm device further includes an insulating member, one end of the insulating member is connected to the cross-arm component, and the other end of the insulating member is configured to fix the wire.

[0018] On the other hand, according to an embodiment of the present application, a tower is proposed, comprising: a tower body; a cross arm device such as any one of the above items, wherein the first end of the connecting assembly is connected to the tower body.

[0019] On the other hand, according to an embodiment of the present application, a wind turbine generator set is proposed, including: a tower according to any of the above embodiments; and a conductor, which is at least partially connected to an adjustment component of a cross-arm device to tension the conductor.

[0020] The cross-arm device, tower and wind turbine generator set provided in the embodiments of the present application, the cross-arm device includes an adjustment component and a connection component, the adjustment component includes a fixed shaft, an elastic part and a hanging component, the elastic part is connected between the connection component and the hanging component, the hanging component is configured to be connected to the wire, when the tension of the wire changes due to environmental influences, since the wire is connected to the hanging component, the tension of the wire can be adjusted by the cooperation of the elastic part and the hanging component of the adjustment component, so as to alleviate the occurrence of faults caused by excessive or insufficient tension of the wire due to environmental influences during use, thereby reducing safety hazards. When the temperature drops or the wire is covered with ice, the tension of the wire can be adjusted to reduce the load on the wire and the tower pole, thereby reducing the probability of tower collapse and wire break accidents. When the temperature rises and strong winds are encountered, the tension of the wire can be adjusted to keep the wire length within an appropriate range, thereby reducing the probability of short circuit and discharge accidents. In addition, by connecting the cross-arm equipment to the wind turbine tower to fix the conductor, it can save the setting of line towers and foundations, reduce construction costs, avoid land nature adjustment and land acquisition procedures, reduce damage to surface crops, reduce the impact on farmland cultivation, and improve land utilization. Furthermore, using the wind turbine tower as a conductor tower can greatly increase the safe distance between the conductor and the ground, solve the problem of being unable to break through the span due to the height limit of the conductor tower, and reduce the construction difficulty, coordination difficulty and maintenance workload of the overhead line project during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0022] Figure 1 is a plan view of a wind turbine system according to an embodiment of the present application;

[0023] Figure 2 It is a plan view of a cross arm device according to an embodiment of the present application;

[0024] Figure 3 It is a plan view of a partial structure of a cross arm device in one embodiment of the present application from one perspective;

[0025] Figure 4 It is a plan view of a partial structure of a cross arm device in one embodiment of the present application from another perspective;

[0026] Figure 5 It is a plan view of a hanging component in a cross arm device of an embodiment of the present application from one perspective;

[0027] Figure 6 It is a plan view of a hanging component in a cross arm device of an embodiment of the present application from another perspective;

[0028] Figure 7 It is a plan view schematically showing another perspective of a hanging component in a cross arm device in an embodiment of the present application;

[0029] Figure 8 It is a plan view schematically showing a hanging component in a cross arm device in an embodiment of the present application from yet another perspective;

[0030] Fig. 9 It is a plan view of a hanging point assembly in a cross arm device of an embodiment of the present application from one perspective;

[0031] Fig.10 It is a plan view of a hanging point assembly in a cross arm device of an embodiment of the present application from another perspective;

[0032] Fig.11 It is a plan view of a cross arm fixing support in a cross arm device of an embodiment of the present application from one perspective;

[0033] Fig.12 is a plan view of a cross arm fixing support in a cross arm device of an embodiment of the present application from another perspective;

[0034] Fig.13 It is a schematic plan view of a cross arm member in a cross arm device according to an embodiment of the present application;

[0035] Fig.14 It is a plan view of a partial structure of a cross arm component in a cross arm device according to an embodiment of the present application.

[0036] In the attached figure:

[0037] 1 wind turbine;

[0038] 10 tower; 20-nacelle; 30-impeller

[0039] 11 cross arm equipment; 12 tower body;

[0040] 100 connection components;

[0041] 120 cross arm fixed support; 121 support pillar; 122 pillar reinforcement plate; 123 support base;

[0042] 130 cross arm member; 131 upper cross arm member; 132 lower cross arm member; 133 member support;

[0043] 200 adjustment components;

[0044] 210 elastic member;

[0045] 220 hanging member; 221 rotating body; 2211 rotating body; 2212 protruding portion; 222 rotating shaft; 2221 recessed portion;

[0046] 230 fixed shaft;

[0047] 240 fixed seat; 241 seat body; 2411 notch; 2412 installation cavity; 242 limiting part;

[0048] 250 balls;

[0049] 300 wires;

[0050] 400 hanging point components;

[0051] 410 clamping unit; 411 clamping groove; 412 connecting hole;

[0052] 500 mounting plate;

[0053] 510 chute;

[0054] 600 insulation pieces.

[0055] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0056] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0057] The directional words appearing in the following description are all directions shown in the figures, and do not limit the crossarm equipment, tower and wind turbine generator set of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0058] like Figure 1 As shown, one embodiment of the present invention provides a wind turbine generator set, including a wind turbine foundation, a tower 10, a nacelle 20, a generator (not shown) and an impeller 30, wherein the tower 10 is connected to the wind turbine foundation, the nacelle 20 is arranged at the top of the tower 10, and the generator is arranged at the nacelle 20. The impeller 30 includes a hub and a plurality of blades connected to the hub, and the impeller 30 is connected to the rotating shaft of the generator through the hub. When the wind acts on the blades, the entire impeller 30 and the rotating shaft of the generator are driven to rotate, thereby meeting the power generation requirements of the wind turbine generator set.

[0059] In order to ensure that the wind turbine generator set can reliably convert wind energy into electrical energy and supply the converted electrical energy to electrical equipment, a conductor 300 is arranged in the tower 10, one end of the conductor 300 is connected to the generator, and the other end is connected to the booster station.

[0060] In existing wind turbine generator sets, the conductors are installed by using conductor towers, which has many shortcomings, such as:

[0061] The construction period of the wind power project has been extended. The foundation of the conductor tower is a reinforced concrete structure, and land acquisition must be carried out according to the outer dimensions of the structure. Because it is a permanent structure, the land use nature is permanent, and the land use approval procedures must be handled in accordance with relevant regulations. The procedures are cumbersome; when it involves basic farmland, the land nature adjustment must also be handled; thus, the overall construction period of the wind power project is extended.

[0062] The distance between poles and towers is small, with an average of five towers per kilometer, and the permanent land area of ​​a single tower is about 30m 2 , the temporary land area is about 500m 2 , including temporary and maintenance roads, earth and stone stacking, foundation and tower material stacking, construction machinery and equipment placement, temporary construction and operation work surface, etc., occupying many points and involving a wide range. Because the location of the tower foundation has no correlation with the farmers' farming boundaries, the tower and its foundation greatly reduce the convenience of mechanized farming of surface crops; and because the temporary land area is large, the tower and foundation construction cycle is different from the harvest time of surface crops, resulting in the destruction of surface crops before they mature, and the difficulty of construction coordination has increased dramatically. It has a certain impact on the planting and harvesting of surface crops, and greatly reduces the utilization rate of land resources in cultivated areas.

[0063] The height of the conductor above the ground is limited by the height of the tower, and the clearance safety distance is insufficient. The height of the tower is relatively low. Generally, the hanging point of the conductor of a 35kV tension tower is 24 meters above the ground. The lowest point of the conductor in the line is below 20 meters relative to the ground. In areas with complex terrain, the lowest point of the conductor can only be controlled below 15 meters relative to the ground, while the natural growth height of most trees is generally above 20 meters. In order to meet the needs of safe operation, it is also necessary to consider a safe distance of 4 meters between trees and conductors. As a result, a large number of trees need to be cut down under the conductors, and the ecological environment is seriously damaged. In the centralized management of farmland areas, there is a certain impact on the clearance and net height mechanized operations, such as drone spraying of pesticides, centralized spraying irrigation, and large-scale mechanical equipment harvesting operations.

[0064] The conductor tension cannot be adjusted. The conductor is connected to the tower crossarm in a fixed way, and the conductor length cannot be adjusted due to environmental changes, so the conductor tension is greatly affected by environmental changes. When the conductor is covered with ice, the conductor tension increases due to the increase in the vertical load of the conductor. At the same time, the ice also increases the windward area of ​​the conductor, which increases the horizontal wind load on the conductor. When the conductor and the crossarm exceed the bearing limit, accidents such as tower collapse and wire breakage will occur. Changes in temperature also affect the conductor tension. When the temperature drops, the conductor length shortens and the tension increases, which may cause wire breakage. When the temperature rises, the line length increases, the conductor sag increases, and the safe distance between the conductor and the ground / obstacle decreases.

[0065] The construction of conductor towers is complex, and the construction and maintenance costs are high. The line foundation and towers require a large amount of steel, sand, gravel, cement and other materials, and the cable path from the wind turbine to the line tower is long; the large amount of input of multiple materials leads to increased carbon emissions, and the cost of line construction is also high; all towers are connected by bolts, the construction and installation are complicated, and the tower construction needs to be strong enough before it can be assembled, which generally takes 30 days, and the construction period is long; and because there are too many towers, there are many points of negotiation with farmers, and coordination is difficult; and during the operation period, each tower needs to be inspected, and the maintenance workload is also large.

[0066] like Figures 2 to 8 As shown, based on this, the present application also provides a tower 10, which can be used for the wind turbine generator set provided in the above embodiments. The tower includes a tower body and a cross arm device 11. The tower body is used to support the nacelle 20, and the cross arm device 11 is arranged on the tower 10 and is used to connect with the wire 300. The cross arm device 11 can be used in the tower 10 and serve as a component of the tower 10, or it can be manufactured as an independent component. The cross arm device 11 can adjust the tension of the wire 300, alleviate the problem of damage caused by excessive or insufficient tension of the wire 300 due to environmental influences during use, and improve safety performance.

[0067] The cross arm device 11 is not only applicable to the tower of a wind turbine generator set, but also applicable to the towers of other high-voltage transmission lines. For the sake of convenience, the cross arm device 11 is described as being used for the tower of a wind turbine generator set.

[0068] Continue reading Figures 2 to 8 As shown, the embodiment of the present application proposes a cross arm device 11 for erecting a conductor 300 on a tower 10, and the cross arm device 11 includes a connection assembly 100 and an adjustment assembly 200. The connection assembly 100 has a predetermined length and includes a first end and a second end in its own length direction, and the first end is configured to be connected to the tower 10. The adjustment assembly 200 is arranged at the second end, and the adjustment assembly 200 includes an elastic member 210, a hanging component 220 and a fixed shaft 230. The hanging component 220 is rotatably connected to the connection assembly 100 through the fixed shaft 230, and the axial direction of the fixed shaft 230 intersects with the length direction of the connection assembly 100. The elastic member 210 is connected between the hanging component 220 and the connection assembly 100, and the hanging component 220 is configured to be connected to the conductor 300 to tension the conductor 300.

[0069] The connection between the connection assembly 100 and the tower 10 includes, but is not limited to, connecting the two by embedding embedded parts or reserving holes on the tower 10, or connecting them by using clamps or the like.

[0070] The cross arm device 11 can be connected not only to the tower of the wind turbine generator set 1 , but also to the tower of a high voltage transmission line, and has a wide range of applications.

[0071] The cross arm device 11 is applicable to a steel tower, a concrete tower, a truss-type steel lattice tower, and the like.

[0072] The fixed shaft 230 includes a cylindrical structure. A shaft fixing nut may be provided on the side of the fixed shaft 230 away from the second end, which can prevent the hanging component 220 from being detached due to vibration or other reasons caused by the operating components of the cross arm device 11.

[0073] The cross arm device 11 provided in the embodiment of the present application, when used in the tower 10, can be connected to the tower 10 through the first end of the connecting assembly 100. The adjusting assembly 200 includes a fixed shaft 230, an elastic member 210, and a hanging component 220. The elastic member 210 is connected between the connecting assembly 100 and the hanging component 220. The hanging component 220 is configured to be connected to the wire 300. When the tension of the wire 300 changes due to environmental influences, since the wire 300 is connected to the hanging component 220, the tension of the wire 300 can be adjusted by the elastic member 210 and the hanging component 220 of the adjusting assembly 200, thereby alleviating the problem of damage caused by excessive or insufficient tension of the wire 300 due to environmental influences during use, thereby reducing safety hazards.

[0074] For example, ice or low temperature on the wire 300 will increase the tension of the wire 300, and the wire 300 will drive the hanging component 220 to rotate around the fixed axis 230 to reduce the tension of the wire 300, increase the length of the wire 300, and reduce the occurrence of accidents such as wire breakage and tower collapse. After the ice on the wire 300 is removed, the tension of the wire 300 will decrease, and the hanging component 220 will rotate around the fixed axis 230 under the action of the elastic member 210, which will tighten the wire 300. The wire 300 is affected by the high temperature environment, the sag of the wire 300 increases, and the tension of the wire 300 decreases. The hanging component 220 rotates around the fixed axis 230 under the action of the elastic member 210, tightening the length of the wire 300, thereby ensuring a safe distance between the wire 300 and the ground. After the ambient temperature decreases, the tension of the wire 300 increases, and the hanging component 220 rotates around the fixed axis 230 under the action of the elastic member 210, which will tighten the wire 300.

[0075] Therefore, the cross arm device 11 provided in one embodiment of the present application can adjust the tension of the conductor 300, reduce safety hazards, and enable normal transmission of electric energy, reduce the labor cost of adjusting the tension of the conductor 300, and in addition, the conductor 300 can be fixed by connecting the cross arm device 11 with the tower 10, which can save the setting of the conductor 300 tower pole and the foundation of the conductor 300 tower pole, and can also save the amount of basic engineering, reduce the construction cost, avoid the adjustment of land nature and the handling of land acquisition procedures, reduce the damage to surface crops, reduce the impact on farmland cultivation, and improve land utilization. Further, using the tower 10 as the conductor 300 tower pole can greatly increase the safe distance between the conductor 300 and the ground, solve the problem of being unable to break through the span due to the height limit of the conductor 300 tower pole, and reduce the construction difficulty, coordination difficulty and operation period maintenance workload of the overhead line project.

[0076] According to one aspect of an embodiment of the present application, the adjustment assembly 200 also includes a fixing seat 240 , which is disposed on the connecting assembly 100 , and the fixing seat 240 is disposed with a second end protruding in the axial direction, and the elastic member 210 is connected to the second end via the fixing seat 240 .

[0077] The fixing base 240 includes a circular or polymorphic rigid structure, and a reinforcement structure may be provided around the fixing base 240 .

[0078] The cross arm device 11 provided in the embodiment of the present application, through the setting of the fixing seat 240, is conducive to the direct connection between the elastic member 210 and the connecting assembly 100, and can provide an attachment site for the elastic member 210. The fixing seat 240 is set with the second end protruding in the axial direction, and there is no need to further extend the connecting assembly 100 along the length direction. The stability of the connection between the connecting assembly 100 and the tower 10 can be improved, and the connection stability of the elastic member 210 can also be enhanced.

[0079] According to one aspect of the embodiment of the present application, the fixed seat 240 includes a seat body 241 and a limiting portion 242. The seat body 241 is axially arranged and enclosed to form a mounting cavity 2412, and a notch 2411 connected to the mounting cavity 2412 is provided on the seat body 241. The limiting portion 242, more than two limiting portions 242 are spaced apart in the circumferential direction of the seat body 241, each limiting portion 242 is connected to the seat body 241, one end of the hanging component 220 extends into the mounting cavity 2412, and an elastic member 210 is connected between each limiting portion 242 and the hanging component 220, and the elastic member 210 is retractable in the circumferential direction, and the hanging component 220 is at least partially protruded from the seat body 241 by the notch 2411 and is connected to the wire 300.

[0080] The number of the limiting portions 242 may be two, three, or more. For example, the number of the limiting portions 242 is four, and the four limiting portions 242 are symmetrically arranged in the circumferential direction of the seat body 241 .

[0081] The cross arm device 11 provided in the embodiment of the present application can limit the expansion and contraction of the elastic member 210 through the setting of the seat body 241 and the limiting portion 242, so that the elastic member 210 can expand and contract along the circumference of the seat body 241 in the installation cavity 2412. The seat body 241 can also protect the elastic member 210 and reduce the erosion of the environment on the elastic member 210. The rotatable hanging component 220 cooperates with the seat body 241, the limiting portion 242 and the elastic member 210 to realize the adjustment of the tension of the wire 300 by the adjustment component 200, and the structure is compact and practical.

[0082] Optionally, the seat body 241 includes but is not limited to an annular structure, which can be a circular ring or a polygonal ring. When it is a polygonal ring, it can be a regular polygon. For example, the seat body 241 provided in an embodiment of the present application is annular, has a simple structure, and the hanging component 220 rotates smoothly.

[0083] According to one aspect of an embodiment of the present application, the hanging component 220 includes a rotating body 221 and a rotating shaft 222. The rotating body 221 is connected to the rotating shaft 222. The rotating body 221 is located in the installation cavity 2412 and is connected to each elastic member 210. The rotating shaft 222 is configured to protrude from the seat body 241 by the notch 2411 and is connected to the wire 300.

[0084] The structure of the rotating body 221 includes but is not limited to a hollow cylinder, and the size of the cylinder matches the size of the fixed shaft 230. The shape of the rotating shaft 222 includes but is not limited to a cylinder.

[0085] The cross arm device 11 provided in the embodiment of the present application realizes the connection between the conductor 300 and the rotating body 221 through the rotating shaft 222, and utilizes the lever principle to realize the tension adjustment of the conductor 300. With the fixed shaft 230 as the rotating fulcrum and the rotating shaft 222 as the force arm, the tension adjustment of the conductor 300 is realized, and the method is simple and easy to operate.

[0086] According to one aspect of the embodiment of the present application, the rotating body 221 includes a rotating body 2211 and a protruding portion 2212. The rotating body 2211 is located in the mounting cavity 2412. Two or more protruding portions 2212 are spaced apart in the circumferential direction of the seat body 241, and a protruding portion 2212 is provided between two adjacent limiting portions 242 along the circumferential direction of the seat body 241, and an elastic member 210 is connected between the protruding portion 2212 and the two adjacent limiting portions 242, respectively.

[0087] The cross arm device 11 provided in the embodiment of the present application realizes the connection between the hanging component 220 and the elastic component 210 by connecting the elastic component 210 between the protrusion 2212 and the two adjacent limiting parts 242. The two affect each other and can drive the wire 300 to be tensioned. The setting of the protrusion 2212 can also make the circumferential dimension of the elastic component 210 larger, so that the elastic component 210 provides a larger deformation amount to adapt to the tensioning of the wire 300, thereby increasing the use range of the adjustment component 200.

[0088] According to one aspect of the embodiment of the present application, along the axial direction of the fixed shaft 230, the height dimension of the rotating body 2211 is greater than the height dimension of the protrusion 2212, and the protrusion 2212 is provided on one side of the rotating body 2211 in the axial direction toward the second end.

[0089] The cross arm device 11 provided in the embodiment of the present application can reduce the friction during the movement of the rotating body 221 by setting the height dimension of the rotating body 2211 to be greater than the height dimension of the protrusion 2212.

[0090] Please refer to Figures 9 and 10 According to one aspect of an embodiment of the present application, the cross arm device 11 further includes a hanging point assembly 400 , which is connected to the rotating shaft 222 , and the hanging point assembly 400 is configured to be connected to the conductor 300 .

[0091] The cross arm device 11 provided in the embodiment of the present application realizes the connection between the wire 300 and the rotating shaft 222 through the hanging point assembly 400, without the need for a direct connection between the wire 300 and the rotating shaft 222, which causes the wire 300 to easily slip off.

[0092] According to one aspect of an embodiment of the present application, the rotating shaft 222 is provided with a recessed portion 2221, and the recessed portion 2221 can be optionally provided on the circumference of the rotating shaft 222. The hanging point assembly 400 includes clamping units 410 arranged in pairs and connected to each other, and at least parts of the clamping units 410 are recessed away from each other and formed with clamping grooves 411, which cooperate with the recessed portion 2221. A connecting hole 412 is provided on at least one clamping unit 410, and the connecting hole 412 is configured to be connected to the wire 300.

[0093] The clamping unit 410 includes a triangular plate shape, and the connecting hole 412 is located at one of the corners of the triangular plate, which can concentrate the force.

[0094] The cross arm device 11 provided in the embodiment of the present application can facilitate the connection between the hanging point assembly 400 and the rotating shaft 222 through the matching setting of the recessed portion 2221 of the rotating shaft 222 and the clamping groove 411. The clamping groove 411 of the clamping unit 410 embedded in the recessed portion 2221 can increase the reliability of the connection between the rotating shaft 222 and the hanging point assembly 400.

[0095] According to one aspect of the embodiment of the present application, the cross arm device 11 further includes a mounting plate 500 , and the mounting plate 500 is disposed at the second end, and the adjustment assembly 200 is connected to the second end via the mounting plate 500 .

[0096] The cross arm device 11 provided in the embodiment of the present application facilitates the installation of the connection assembly 100 and the adjustment assembly 200 through the provision of the mounting plate 500 , thereby improving the integration of the cross arm device 11 .

[0097] According to one aspect of an embodiment of the present application, a slide groove 510 is arranged axially around the fixed shaft 230 on one of the mounting plate 500 and the adjustment assembly 200, and a plurality of balls 250 are arranged on the other, and the balls 250 match the shape of the slide groove 510 and can move along the slide groove 510.

[0098] The mounting plate 500 includes but is not limited to a polygonal steel structure, a polygonal wooden board structure, and the like.

[0099] The cross arm device 11 provided in the embodiment of the present application suppresses the friction between the mounting plate 500 and the adjustment component 200 from affecting the movement of the adjustment component 200 relative to the mounting plate 500 through the provision of the slide groove 510 and the ball 250 .

[0100] According to one aspect of the embodiment of the present application, the elastic member 210 includes at least one of a spring, a rubber block and an airbag.

[0101] The cross arm device 11 provided in the embodiment of the present application can be easily reproduced and the application scope of the cross arm device 11 can be increased through the further arrangement of the elastic member 210 .

[0102] Please refer to Figures 11 to 14 As shown, according to one aspect of an embodiment of the present application, the connection assembly 100 includes a cross arm fixing support 120 and a cross arm member 130. The cross arm fixing support 120 is configured to be connected to the tower 10. The cross arm member 130 is located between the cross arm fixing support 120 and the adjustment assembly 200, and the cross arm member 130 is connected to the cross arm fixing support 120 and the adjustment assembly 200.

[0103] The cross arm fixed support 120 includes a support column 121, a column reinforcement plate 122, a support base 123, and stud bolts. The support column 121 is an I-beam or a channel steel, and bolt holes are opened on the side wall of the steel for connecting with the cross arm member 130. The bottom of the support column 121 is an inclined structure for connecting with the support base 123. The column reinforcement plate 122 surrounds the connection between the support column 121 and the support base 123. The support base 123 is a polygonal structure. The side of the support base 123 connected to the support column 121 is a plane, and the side of the support base 123 away from the support column 121 is a concave arc surface, which can match the shape of the tower 10. The support base 123 is provided with holes, and the stud bolts can be bolted to the holes.

[0104] The cross arm member 130 includes an upper cross arm member 131, a lower cross arm member 132, and a member support 133. The upper cross arm member 131 is composed of one or more structural members, and plays a role of pulling and fixing the cross arm member 130. One end of the upper cross arm member 131 is connected to the cross arm fixing support 120, and the other end is connected to the lower cross arm member 132. The upper cross arm members 131 are fixed by the member support 133; the lower cross arm member 132 is composed of one or more structural members, and plays a role of horizontal support and fixing the cross arm member 130. One end of the lower cross arm member 132 is connected to the cross arm fixing support 120, and the other end is connected to the hanging plate system. The lower cross arm members 132 are fixed by the member support 133; the member support 133 serves as a support member to combine the upper cross arm member 131 and the lower cross arm member 132 into an integral force-bearing structure.

[0105] The cross arm device 11 provided in the embodiment of the present application facilitates the assembly and disassembly of the connection assembly 100 and the tower 10 by disposing the cross arm fixing support 120 .

[0106] According to one aspect of the embodiment of the present application, the cross-arm device 11 further includes an insulating member 600 , one end of the insulating member 600 is connected to the cross-arm component 130 , and the other end of the insulating member 600 is configured to fix the wire 300 .

[0107] The cross-arm device 11 provided in the embodiment of the present application effectively alleviates the influence of the cross-arm on the electrical signal in the conductor 300 by disposing the insulating member 600 .

[0108] On the other hand, according to an embodiment of the present application, a tower 10 is proposed, including a tower body 12 and a cross arm device 11 as described in any one of the items, and a first end of a connecting assembly 100 is connected to the tower body 12 .

[0109] The tower 10 provided in the embodiment of the present application can simplify the setting of the conductor 300 tower 10 through the setting of the tower 10 including the tower body 12 and the cross arm device 11, save the basic engineering amount of the tower 10, and reduce the occupation of construction land. It can also adjust the tension of the conductor 300 erected on the tower 10, thereby improving the safety performance of the tower 10.

[0110] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cross arm device (11) for erecting a conductor (300) on a tower (10), characterized in that: include: A connecting assembly (100) having a predetermined length and including a first end and a second end in its length direction, wherein the first end is configured to be connected to the tower (10); An adjustment component (200) is arranged at the second end, and the adjustment component (200) comprises an elastic member (210), a hanging member (220) and a fixed shaft (230). The hanging member (220) is rotatably connected to the connecting component (100) via the fixed shaft (230), and the axial direction of the fixed shaft (230) intersects with the length direction. The elastic member (210) is connected between the hanging member (220) and the connecting component (100), and the hanging member (220) is configured to be connected to the wire (300) to tension the wire (300).

2. The cross arm device (11) according to claim 1, characterized in that: The adjustment assembly (200) further comprises a fixing seat (240), wherein the fixing seat (240) is arranged on the connection assembly (100), the fixing seat (240) is arranged to protrude from the second end in the axial direction, and the elastic member (210) is connected to the second end via the fixing seat (240).

3. The cross arm device (11) according to claim 2, characterized in that: The fixing seat (240) comprises: A seat body (241) is arranged around the axial arrangement to form a mounting cavity (2412), and a notch (2411) communicating with the mounting cavity (2412) is arranged on the seat body (241); A limiting portion (242), more than two limiting portions (242) are spaced apart in the circumferential direction of the seat body (241), each limiting portion (242) is connected to the seat body (241), one end of the hanging component (220) extends into the installation cavity (2412), and the elastic member (210) is connected between each limiting portion (242) and the hanging component (220), and the elastic member (210) is retractable in the circumferential direction, and the hanging component (220) is at least partially protruded from the seat body (241) by the notch (2411) and is connected to the wire (300).

4. The cross arm device (11) according to claim 3, characterized in that: The hanging component (220) includes a rotating body (221) and a rotating shaft (222), wherein the rotating body (221) is connected to the rotating shaft (222), the rotating body (221) is located in the installation cavity (2412) and is connected to each of the elastic members (210), and the rotating shaft (222) is configured to protrude from the seat body (241) through the notch (2411) and is connected to the wire (300).

5. The cross arm device (11) according to claim 4, characterized in that: The rotating body (221) comprises: A rotating body (2211) is located in the installation cavity (2412); A protrusion (2212), wherein two or more of the protrusions (2212) are spaced apart in the circumferential direction, and along the circumferential direction, the protrusion (2212) is arranged between two adjacent limiting portions (242), and the elastic member (210) is respectively connected between the protrusion (2212) and the two adjacent limiting portions (242).

6. The cross arm device (11) according to claim 5, characterized in that: Along the axial direction, the height dimension of the rotating body (2211) is greater than the height dimension of the protrusion (2212), and the rotating body (2211) is provided with the protrusion (2212) protruding from one side of the rotating body (2211) toward the second end in the axial direction.

7. The cross arm device (11) according to claim 4, characterized in that: The cross arm device (11) further comprises a hanging point assembly (400), wherein the hanging point assembly (400) is connected to the rotating shaft (222), and the hanging point assembly (400) is configured to be connected to the conductor (300).

8. The cross arm device (11) according to claim 7, characterized in that: The rotating shaft (222) is provided with a recessed portion (2221), and the hanging point assembly (400) includes clamping units (410) arranged in pairs and connected to each other, at least parts of the clamping units (410) are recessed away from each other and formed with clamping grooves (411), and the clamping grooves (411) cooperate with the recessed portion (2221), and at least one of the clamping units (410) is provided with a connecting hole (412), and the connecting hole (412) is configured to be connected to the wire (300).

9. The cross arm device (11) according to claim 1, characterized in that: The cross arm device (11) further comprises a mounting plate (500), wherein the mounting plate (500) is arranged at the second end, and the adjustment assembly (200) is connected to the second end via the mounting plate (500).

10. The cross arm device (11) according to claim 9, characterized in that: A slide groove (510) is arranged around the axial direction on one of the mounting plate (500) and the adjusting assembly (200), and a plurality of balls (250) are arranged on the other. The balls (250) match the shape of the slide groove (510) and can move along the slide groove (510).

11. The cross arm device (11) according to claim 1, characterized in that: The elastic member (210) comprises at least one of a spring, a rubber block and an air bag.

12. The cross arm device (11) according to claim 1, characterized in that: The connection assembly (100) comprises: A cross arm fixing support (120) configured to be connected to the tower (10); The cross arm component (130) is located between the cross arm fixing support (120) and the adjustment assembly (200), and the cross arm component (130) is connected to the cross arm fixing support (120) and the adjustment assembly (200).

13. The cross arm device (11) according to claim 12, characterized in that: The cross arm device (11) further comprises an insulating member (600), one end of the insulating member (600) is connected to the cross arm member (130), and the other end of the insulating member (600) is configured to fix the wire (300).

14. A tower (10), characterized in that: include: Tower body(12) ； According to the cross arm device (11) according to any one of claims 1 to 13, the first end of the connecting assembly (100) is connected to the tower body (12).

15. A wind turbine generator set (1), characterized in that: include: The tower (10) as claimed in claim 14; The conductor (300) is at least partially connected to the adjustment assembly (200) of the cross arm device (11) to tension the conductor (300).

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