Connecting middle shaft for vertical shaft light-weight blade universal breeze power generation equipment

Abstract

The utility model discloses a connecting center shaft for vertical shaft light-weight blade universal breeze power generation equipment. The connecting center shaft comprises a cylinder body, a connecting mechanism, a pivotal bearing, a supporting mechanism and a bearing, the supporting mechanism is connected into the cylinder, the pivotal bearing is connected to the top of the supporting mechanism, and the connecting mechanism is installed on the pivotal bearing. The bearing is connected to the position, close to the lower end, of the connecting mechanism and located in the supporting mechanism. The lower connecting plate is mounted at the top of the pivotal bearing, the reinforcing plate is fixed at the top of the lower connecting plate, and the upper connecting plate is fixed at one end of the reinforcing plate away from the lower connecting plate and mounted on the pivotal bearing through bolts; the connecting shaft penetrates through the upper connecting plate and the lower connecting plate and is fixedly connected with the upper connecting plate and the lower connecting plate. Friction force of the connecting shaft can be reduced, the supporting strength of the impeller can be enhanced, and the stability of the whole device is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of vertical axis wind power generation technology, and specifically relates to a connecting shaft for a vertical axis lightweight blade omnidirectional micro wind power generation device. Background Technology

[0002] As the swept area of ​​vertical axis wind power generation equipment increases, the rotor diameter also increases. If the bearing in the connection between the rotor and the generator is not stressed enough, it will affect the stability of the rotor during rotation, and further affect the stability of the power generation device.

[0003] A search revealed a drive shaft for a vertical axis wind turbine, with prior art announcement number CN209494667U. The drive shaft includes an upper shaft, a coupling, and a lower shaft. The upper shaft has a lower hub at its upper end, which connects to the upper wind turbine unit. The lower shaft has an upper hub at its lower end, which connects to the lower wind turbine unit. The middle shaft and lower shaft are connected by a coupling. A bearing seat is fixed at the center of the cross brace, and the upper shaft of the drive shaft is fixed within the bearing seat by a bearing. However, this design has the following drawbacks: the middle shaft of the entire drive shaft is only connected by a bearing seat, which cannot guarantee the support strength of the middle shaft during rotation, thus affecting the stability of the middle shaft.

[0004] A search revealed that the existing technology, CN116753124A, describes a transmission mechanism and wind power generation device for a vertical axis wind turbine. This device includes an impeller drive shaft, an upper bearing and a lower bearing connected to the journal of the impeller drive shaft, a bearing mounting cover connected to the outer rings of the upper and lower bearings, and a wind turbine support connected to the lower end face of the bearing mounting cover. An inner bearing retainer is provided between the inner and lower bearing rings, and an outer bearing retainer is provided between the outer and lower bearing rings, with a height difference between them. A first coupling and a second coupling are installed within the wind turbine support. The first coupling connects the lower end of the impeller drive shaft to the upper end of the generator shaft, and the second coupling is mounted on the generator shaft and connected to the first coupling. However, this design has the following drawbacks: although the transmission mechanism improves the stability of the power generation device to some extent by changing the direction of force, the limited number of rigid support plates and fixed reinforcing ribs is detrimental to the support strength of the power generation device, resulting in insufficient stability. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a connecting shaft for a vertical axis lightweight blade omnidirectional micro wind generator. The slewing bearing and bearing can increase the lubrication of the connecting shaft during rotation, thereby reducing the friction of the connecting shaft. Moreover, the slewing bearing and bearing can withstand large loads and vibrations, ensuring smooth rotation. The reinforcing plate can increase the support strength between the upper connecting plate, the lower connecting plate, and the connecting shaft, further improving the stability of the entire connecting mechanism.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A connecting shaft for a vertical-axis lightweight blade omnidirectional micro-wind generator includes a cylinder, a connecting mechanism, a slewing bearing, a support mechanism, and a bearing. The support mechanism is connected inside the cylinder, the slewing bearing is connected to the top of the support mechanism, and the connecting mechanism is mounted on the slewing bearing. The bearing is connected to the connecting mechanism near its lower end and located inside the support mechanism. The connecting mechanism includes an upper connecting plate, a reinforcing plate, a lower connecting plate, and a connecting shaft. The lower connecting plate is mounted on top of the slewing bearing, and the reinforcing plates are fixed to the top of the lower connecting plate. Several reinforcing plates are evenly distributed around the center of the lower connecting plate. The upper connecting plate is fixed to the end of the reinforcing plate furthest from the lower connecting plate and is mounted on the cylinder by bolts. The slewing bearing has a connecting shaft that passes through the upper and lower connecting plates and is fixedly connected to them respectively. A limit ring is bolted to the side wall of the connecting shaft, and a boss is provided on the side wall of the connecting shaft above the limit ring. The bearing is located between the limit ring and the boss. The limit ring supports and limits the bearing to prevent it from falling off. The slewing bearing and the connecting shaft bearing increase the lubrication during the rotation process, thereby reducing the friction of the connecting shaft. Moreover, the slewing bearing and the connecting shaft bearing can withstand large loads and vibrations, ensuring smooth rotation. The reinforcing plate enhances the support strength between the upper and lower connecting plates and the connecting shaft, further improving the stability of the entire connecting mechanism.

[0008] The support mechanism includes a cover plate, a bushing, a base plate, and a support plate. The cover plate is bolted to the top of the cylinder. The bushing passes through the cover plate and is fixedly connected to it. The base plate is fixed to the outer wall of the bushing at the end away from the cover plate. Several support plates are provided and fixed between the cover plate and the base plate, and the support plates are evenly distributed around the bushing. The connecting shaft passes through the bushing, and a bearing connects the bushing and the connecting shaft. The bushing reduces friction between the connecting shaft and external components, thereby reducing noise and vibration, and provides support and positioning for the connecting shaft. The support plate enhances the support strength between the cover plate, bushing, and base plate, further improving the stability of the entire connecting mechanism and the cylinder.

[0009] The cylinder is equipped with a fixed plate and vertical plates inside. The fixed plate is in the shape of a ring and is fixed to the inner side wall of the cylinder. The vertical plates are evenly fixed to the inner side wall of the cylinder at the top of the fixed plate. The vertical plates can strengthen the top of the cylinder and improve the support and stability of the entire cylinder.

[0010] Several evenly distributed support plates are installed on the fixed plate by bolts. The support plates extend toward the center of the fixed plate and are connected to the base plate by bolts. The support plates can support the entire support mechanism, so that the support mechanism is stably connected to the inside of the cylinder.

[0011] Several uniformly fixed reinforcing ribs are provided between the outer wall of the connecting shaft and the top of the lower connecting plate. The reinforcing ribs have a triangular stable structure, which can enhance the support strength of the connecting shaft and the lower connecting plate.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] 1) Slewing bearings and bearings can increase the lubrication of the connecting shaft during rotation, thereby reducing the friction of the connecting shaft. Moreover, slewing bearings and bearings can withstand large loads and vibrations, ensuring smooth rotation. The reinforcing plate can enhance the support strength between the upper connecting plate, the lower connecting plate, and the connecting shaft, further improving the stability of the entire connecting mechanism.

[0014] 2) The bushing can reduce the friction between the connecting shaft and the external components, thereby reducing noise and vibration, and providing support and positioning for the connecting shaft; the support plate can enhance the support strength between the cover plate, bushing and bottom plate, and further improve the stability of the entire connecting mechanism and the cylinder. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the connecting shaft structure for a vertical axis lightweight blade omnidirectional micro wind power generation device according to the present invention;

[0016] Appendix Figure 2 This is a schematic diagram of the connecting mechanism in the connecting shaft of a vertical axis lightweight blade omnidirectional micro wind generator according to this utility model;

[0017] Appendix Figure 3 This is a schematic diagram of the structural support mechanism in the connecting shaft of a vertical axis lightweight blade omnidirectional micro wind power generation device according to the present invention;

[0018] Appendix Figure 4 This is a schematic diagram of the internal structure of the connecting central cylinder of a vertical axis lightweight blade omnidirectional micro wind power generation device according to the present invention;

[0019] Appendix Figure 5 This is a cross-sectional structural diagram of a connecting central shaft for a vertical axis lightweight blade omnidirectional micro wind power generation device according to the present invention;

[0020] Appendix Figure 6 This is a schematic diagram of the usage structure of a connecting shaft for a vertical axis lightweight blade omnidirectional micro wind power generation device according to this utility model;

[0021] In the diagram: 1. Cylinder; 2. Connecting mechanism; 201. Upper connecting plate; 202. Reinforcing plate; 203. Lower connecting plate; 204. Connecting shaft; 2041. Limiting ring; 205. Reinforcing rib; 3. Slewing bearing; 4. Supporting mechanism; 401. Cover plate; 402. Bushing; 403. Base plate; 404. Support plate; 405. Support plate; 5. Bearing; 6. Fixing plate; 7. Vertical plate; 8. Impeller; 9. Coupling; 11. Generator set. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the following is in conjunction with the appendix. Figure 1-6 The technical solution of this utility model will be further described in detail below.

[0023] A connecting shaft for a vertical-axis lightweight blade omnidirectional micro-wind generator includes a cylinder 1, a connecting mechanism 2, a slewing bearing 3, a support mechanism 4, and a bearing 5. The support mechanism 4 is connected inside the cylinder 1, the slewing bearing 3 is connected to the top of the support mechanism 4, and the connecting mechanism 2 is mounted on the slewing bearing 3. The bearing 5 is connected to the connecting mechanism 2 near its lower end and is located inside the support mechanism 4. The connecting mechanism 2 includes an upper connecting plate 201, a reinforcing plate 202, a lower connecting plate 203, and a connecting shaft 204. The lower connecting plate 203 is mounted on the top of the slewing bearing 3, and the reinforcing plates 202 are fixed to the top of the lower connecting plate 203. Several reinforcing plates 202 are evenly distributed with the center of the lower connecting plate 203 as the center. The upper connecting plate 201 is fixed to the end of the reinforcing plate 202 away from the lower connecting plate 203 and is bolted to the slewing bearing 3. The connecting shaft 204 passes through the upper connecting plate 201 and the lower connecting plate 203, and is fixedly connected to the upper connecting plate 201 and the lower connecting plate 203 respectively. A limiting ring 2041 is bolted to the side wall of the connecting shaft 204. A boss is provided on the side wall of the connecting shaft above the limiting ring 2041. The bearing 5 is located between the limiting ring 2041 and the boss. The limiting ring 2041 can support and limit the bearing 5 to prevent the bearing 5 from falling off. The slewing bearing 3 and the bearing 5 can increase the lubrication of the connecting shaft 204 during rotation, thereby reducing the friction of the connecting shaft 204. Moreover, the slewing bearing 3 and the bearing 5 can withstand large loads and vibrations to ensure smooth rotation. The reinforcing plate 202 can enhance the support strength between the upper connecting plate 201, the lower connecting plate 203 and the connecting shaft 204, and further improve the stability of the entire connecting mechanism 2.

[0024] The support mechanism 4 includes a cover plate 401, a bushing 402, a base plate 403, and a support plate 404. The cover plate 401 is bolted to the top of the cylinder 1. The bushing 402 passes through the cover plate 401 and is fixedly connected to it. The base plate 403 is fixed to the outer wall of the bushing 402 at the end away from the cover plate 401. Several support plates 404 are provided and fixed between the cover plate 401 and the base plate 403. The support plates 404 are evenly distributed around the bushing 402. The connecting shaft 204 passes through the bushing 402. The bearing 5 is connected between the bushing 402 and the connecting shaft 204. The bushing 402 can reduce the friction between the connecting shaft 204 and external components, thereby reducing noise and vibration, and providing support and positioning for the connecting shaft 204. The support plate 404 can enhance the support strength between the cover plate 401, the bushing 402, and the base plate 403, further improving the stability of the entire connecting mechanism 2 and the cylinder 1.

[0025] The cylinder 1 is provided with a fixing plate 6 and a vertical plate 7 inside. The fixing plate 6 is in the shape of a ring and is fixed on the inner wall of the cylinder 1. The vertical plate 7 is provided with several evenly fixed on the inner wall of the cylinder 1 at the top of the fixing plate 6. The vertical plate 7 can strengthen the top of the cylinder 1 and improve the support strength and stability of the entire cylinder 1.

[0026] Several evenly distributed support plates 405 are installed on the fixed plate 6 by bolts. The support plates 405 extend toward the center of the fixed plate 6 and are connected to the base plate 403 by bolts. The support plates 405 can support the entire support mechanism 4, so that the support mechanism 4 is stably connected inside the cylinder 1.

[0027] Several uniformly fixed reinforcing ribs 205 are provided between the outer wall of the connecting shaft 204 and the top of the lower connecting plate 203. The reinforcing ribs 205 have a triangular stable structure, which can enhance the support strength of the connecting shaft 204 and the lower connecting plate 203.

[0028] A connecting shaft for a vertical-axis lightweight blade omnidirectional micro-wind generator operates as follows: the top of the connecting shaft is connected to an impeller 8, and the bottom is connected to a coupling 9, which is connected to a generator set 11; the rotation of the impeller 8 drives the connecting shaft to rotate, and the connecting shaft rotates with the generator set 11 through the coupling 9, thereby generating electricity; the slewing bearing 3 and bearing 5 of the connecting shaft can increase the lubrication of the connecting shaft 204 during rotation, thereby reducing the friction of the connecting shaft 204, and the slewing bearing 3 and bearing 5 can withstand large loads and vibrations, ensuring smooth rotation; the connecting shaft is provided with several reinforcing plates 202, support plates 404, and vertical plates 7, which can enhance the support strength of the entire connecting shaft and improve the stability of the generator.

[0029] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A connecting shaft for a vertical-axis lightweight blade omnidirectional micro-wind generator, comprising a cylinder, a connecting mechanism, a slewing bearing, a support mechanism, and a bearing; characterized in that... The support mechanism is connected inside the cylinder, the slewing bearing is connected to the top of the support mechanism, and the connecting mechanism is installed on the slewing bearing. The bearing is connected to the connecting mechanism near the lower end and is located inside the support mechanism. The connecting mechanism includes an upper connecting plate, a reinforcing plate, a lower connecting plate, and a connecting shaft. The lower connecting plate is installed on the top of the slewing bearing, and the reinforcing plate is fixed on the top of the lower connecting plate. Several reinforcing plates are provided and evenly distributed with the center of the lower connecting plate as the center. The upper connecting plate is fixed to the end of the reinforcing plate away from the lower connecting plate and is installed on the slewing bearing by bolts. The connecting shaft passes through the upper connecting plate and the lower connecting plate and is fixedly connected to the upper connecting plate and the lower connecting plate respectively. A limit ring is connected to the side wall of the connecting shaft by bolts, and a boss is provided on the side wall of the connecting shaft above the limit ring. The bearing is located between the limit ring and the boss.

2. The connecting shaft for a vertical-axis lightweight blade omnidirectional micro wind power generation device according to claim 1, characterized in that... The support mechanism includes a cover plate, a bushing, a base plate, and a support plate. The cover plate is bolted to the top of the cylinder. The bushing passes through the cover plate and is fixedly connected to it. The base plate is fixed on the outer wall of the bushing at the end away from the cover plate. Several support plates are provided and fixed between the cover plate and the base plate. The support plates are evenly distributed around the bushing. The connecting shaft passes through the bushing, and the bearing is connected between the bushing and the connecting shaft.

3. The connecting shaft for a vertical-axis lightweight blade omnidirectional micro-wind generator according to claim 1, characterized in that... The cylinder is equipped with a fixed plate and vertical plates inside. The fixed plate is in the shape of a ring and is fixed to the inner side wall of the cylinder. The vertical plates are evenly fixed to the inner side wall of the cylinder at the top of the fixed plate.

4. The connecting shaft for a vertical-axis lightweight blade omnidirectional micro wind power generation device according to claim 1, characterized in that... Several evenly distributed support plates are installed on the fixed plate by bolts. The support plates extend toward the center of the fixed plate and are connected to the base plate by bolts.

5. The connecting shaft for a vertical-axis lightweight blade omnidirectional micro wind power generation device according to claim 1, characterized in that... Several uniformly fixed reinforcing ribs are provided between the top of the outer wall of the connecting shaft and the top of the lower connecting plate. The reinforcing ribs have a triangular stable structure.

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