阅读说明：本技术 一种潮流能及河流能发电的传动装置 (Transmission device for generating power by tidal current energy and river energy ) 是由 胡照会 任明法 许迪 于 2019-09-17 设计创作，主要内容包括：本发明提供了一种潮流能及河流能发电的传动装置,属于发电设备领域。该潮流能及河流能发电的传动装置包括：水上转动轴、水下转动轴和柔性传动部件；所述水上转动轴位于水面的上方,与位于水上的发电设备连接；所述水下转动轴位于水面的下方,与位于水下的捕能装置连接；所述水上转动轴和水下转动轴平行设置；所述柔性传动部件的上部连接在水上转动轴上,下部连接在水下转动轴上；当水下转动轴旋转时,通过柔性传动部件带动水上转动轴旋转。本发明避免了由于密封不严造成发电装置或变速装置的损坏,降低了发电设备的投入成本和后期的维护成本,同时提高了发电设备的稳定性,适用于海流能、潮汐能、河流能及其他液体能发电及利用的传动方式。(The invention provides a transmission device for generating power by tidal current energy and river energy, and belongs to the field of power generation equipment. This transmission that trend can and river can generate electricity includes: the underwater rotating shaft is connected with the underwater rotating shaft; the overwater rotating shaft is positioned above the water surface and is connected with power generation equipment positioned on the water; the underwater rotating shaft is positioned below the water surface and is connected with the underwater energy capturing device; the overwater rotating shaft and the underwater rotating shaft are arranged in parallel; the upper part of the flexible transmission part is connected to the overwater rotating shaft, and the lower part of the flexible transmission part is connected to the underwater rotating shaft; when the underwater rotating shaft rotates, the water rotating shaft is driven to rotate through the flexible transmission part. The invention avoids the damage of the power generation device or the speed change device caused by untight sealing, reduces the input cost and the later maintenance cost of the power generation equipment, improves the stability of the power generation equipment, and is suitable for a transmission mode for generating and utilizing ocean current energy, tidal energy, river energy and other liquid energy.)

1. The utility model provides a transmission that trend can and river can generate electricity which characterized in that: the transmission device for generating the tidal current energy and the river energy comprises: the underwater rotating shaft is connected with the underwater rotating shaft;

the overwater rotating shaft is positioned above the water surface and is connected with power generation equipment positioned on the water;

the underwater rotating shaft is positioned below the water surface and is connected with the underwater energy capturing device;

the overwater rotating shaft and the underwater rotating shaft are arranged in parallel;

the upper part of the flexible transmission part is connected to the overwater rotating shaft, and the lower part of the flexible transmission part is connected to the underwater rotating shaft;

when the underwater rotating shaft rotates, the water rotating shaft is driven to rotate through the flexible transmission part.

2. The tidal current energy and river energy power generation transmission device according to claim 1, wherein: the flexible transmission part adopts a belt, a rope or a chain.

3. The tidal current energy and river energy power generation transmission device according to claim 2, wherein: the flexible transmission component is an integral body which is connected end to end, the upper part of the flexible transmission component is spirally wound on the overwater rotating shaft, and the lower part of the flexible transmission component is spirally wound on the underwater rotating shaft; when the underwater rotating shaft rotates, the flexible transmission part is driven to carry out spiral winding on the underwater rotating shaft, and simultaneously, the flexible transmission part carries out spiral winding on the overwater rotating shaft to drive the overwater rotating shaft to rotate;

or the flexible transmission part adopts two parallel chains; two fluted discs coaxial with the overwater rotating shaft are arranged on the overwater rotating shaft, and two fluted discs coaxial with the underwater rotating shaft are arranged on the underwater rotating shaft; the upper part of each chain bypasses the fluted disc on the overwater rotating shaft, and the lower part bypasses the fluted disc on the underwater rotating shaft; when the underwater rotating shaft rotates, the two chains are driven to rotate simultaneously, and the two chains drive the overwater rotating shaft to rotate simultaneously.

4. A tidal current energy and river energy power generation transmission device according to claim 3, wherein: a connecting arm is arranged between the overwater rotating shaft and the underwater rotating shaft;

the middle part of the flexible transmission part penetrates through the connecting arm.

5. The tidal current energy and river energy power generation transmission device according to claim 1, wherein: the water rotating shaft is arranged on a supporting structure above the water surface;

the upper end of the connecting arm is fixedly connected with the supporting structure.

6. The tidal current energy and river energy power generation transmission device according to claim 5, wherein: the connecting arm is provided with two parallel longitudinal through holes, the tail end of the flexible transmission part is left above the upper opening of the first longitudinal through hole, the head end of the flexible transmission part enters the first longitudinal through hole from the upper opening of the first longitudinal through hole, penetrates out of the lower opening of the first longitudinal through hole and then is spirally wound on the underwater rotating shaft, penetrates out of the underwater rotating shaft and then enters the second longitudinal through hole from the lower opening of the second longitudinal through hole, then penetrates out of the upper opening of the second longitudinal through hole and then is spirally wound on the overwater rotating shaft, and the head end and the tail end of the flexible transmission part are connected into a whole after being wound out of the overwater rotating shaft, so that a head-tail connected whole is formed;

or 4 parallel longitudinal through holes are formed in the connecting arm, two longitudinal through holes on the left side are used for penetrating through the chain on the left side, and two longitudinal through holes on the right side are used for penetrating through the chain on the right side.

7. The tidal current energy and river energy power generation transmission device according to claim 6, wherein: a guide tube is embedded in each longitudinal through hole, and a flexible transmission component penetrates through the guide tube.

8. The tidal current energy and river energy power generation transmission device according to claim 7, wherein: the lower opening and the upper opening of the longitudinal through hole and/or the conduit are in a circular-arc funnel shape.

9. The tidal current energy and river energy power generation transmission device according to claim 1, wherein: a flow guide cover is arranged outside the underwater rotating shaft;

the air guide sleeve is of a closed shell structure, and the underwater rotating shaft is arranged in an inner cavity of the air guide sleeve;

an outlet is formed in one end of the flow guide cover, and one end of the underwater rotating shaft extends out of the outlet and then is connected with the energy capturing device;

the lower end of the connecting arm is hermetically connected with the air guide sleeve;

and the inner cavity of the longitudinal through hole on the connecting arm is communicated with the inner cavity of the air guide sleeve.

10. The tidal current energy and river energy power generation transmission device according to claim 9, wherein: the cross section of the air guide sleeve is streamline;

the cross section of the connecting arm is in a spindle shape.

Technical Field

The invention belongs to the field of power generation equipment, and particularly relates to a transmission device for generating power by tidal current energy and river energy.

Background

Ocean energy and river energy have the advantages of large development potential, green and clean sustainable utilization and the like, the ocean energy and river energy are developed and utilized to have important significance for relieving energy crisis and environmental pollution problems, and the tidal current energy power generation becomes an active branch in the technical field of new energy power generation, and has important practical significance for relieving energy shortage and reducing environmental pollution.

The existing ocean power generation device is generally that power generation equipment (a generator set and speed change equipment) is directly placed under water and connected with an energy capturing device. The main shaft of the blade hub in the energy capturing device is directly connected with the generator set or is connected with the generator set through speed change equipment and is placed under water, although the device better realizes power generation and reduces power generation power loss. However, the generator and the speed changing equipment need to be immersed in water for a long time, and higher requirements are inevitably put forward on the generator and the speed changing equipment, for example, the generator, the gear box, the hub main shaft and the like need to be sealed so as to prevent water from corroding and damaging the speed changing equipment and the generator set, the input cost is greatly increased due to the overhigh equipment sealing requirement, and in addition, if the generator enters water, the generator cannot be maintained, and a new generator needs to be replaced.

Moreover, the power generation equipment has huge structure of the underwater equipment underwater, and can only be maintained underwater or after the underwater equipment is lifted out of the water surface by using larger lifting equipment, so that the later maintenance cost is huge and the maintenance time is long.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provide a transmission device for generating power by tidal current energy and river energy, so that the investment cost and the maintenance cost are reduced, and the maintenance time is shortened.

The invention is realized by the following technical scheme:

a transmission device for generating power by tidal current energy and river energy comprises an overwater rotating shaft, an underwater rotating shaft and a flexible transmission part;

the overwater rotating shaft is positioned above the water surface and is connected with power generation equipment positioned on the water;

the underwater rotating shaft is positioned below the water surface and is connected with the underwater energy capturing device;

the overwater rotating shaft and the underwater rotating shaft are arranged in parallel;

the upper part of the flexible transmission part is connected to the overwater rotating shaft, and the lower part of the flexible transmission part is connected to the underwater rotating shaft;

when the underwater rotating shaft rotates, the water rotating shaft is driven to rotate through the flexible transmission part.

The flexible transmission part adopts a belt, a rope or a chain.

The flexible transmission component is an integral body which is connected end to end, the upper part of the flexible transmission component is spirally wound on the overwater rotating shaft, and the lower part of the flexible transmission component is spirally wound on the underwater rotating shaft; when the underwater rotating shaft rotates, the flexible transmission part is driven to carry out spiral winding on the underwater rotating shaft, and simultaneously, the flexible transmission part carries out spiral winding on the overwater rotating shaft to drive the overwater rotating shaft to rotate;

or the flexible transmission part adopts two parallel chains; two fluted discs coaxial with the overwater rotating shaft are arranged on the overwater rotating shaft, and two fluted discs coaxial with the underwater rotating shaft are arranged on the underwater rotating shaft; the upper part of each chain bypasses the fluted disc on the overwater rotating shaft, and the lower part bypasses the fluted disc on the underwater rotating shaft; when the underwater rotating shaft rotates, the two chains are driven to rotate simultaneously, and the two chains drive the overwater rotating shaft to rotate simultaneously.

Further, a connecting arm is arranged between the above-water rotating shaft and the underwater rotating shaft;

the middle part of the flexible transmission part penetrates through the connecting arm.

The water rotating shaft is arranged on a supporting structure above the water surface;

the upper end of the connecting arm is fixedly connected with the supporting structure.

The connecting arm is provided with two parallel longitudinal through holes, the tail end of the flexible transmission part is left above the upper opening of the first longitudinal through hole, the head end of the flexible transmission part enters the first longitudinal through hole from the upper opening of the first longitudinal through hole, penetrates out of the lower opening of the first longitudinal through hole and then is spirally wound on the underwater rotating shaft, penetrates out of the underwater rotating shaft and then enters the second longitudinal through hole from the lower opening of the second longitudinal through hole, then penetrates out of the upper opening of the second longitudinal through hole and then is spirally wound on the overwater rotating shaft, and the head end and the tail end of the flexible transmission part are connected into a whole after being wound out of the overwater rotating shaft, so that a head-tail connected whole is formed;

or 4 parallel longitudinal through holes are formed in the connecting arm, two longitudinal through holes on the left side are used for penetrating through the chain on the left side, and two longitudinal through holes on the right side are used for penetrating through the chain on the right side.

A guide tube is embedded in each longitudinal through hole, and a flexible transmission component penetrates through the guide tube.

Preferably, the lower opening and the upper opening of the longitudinal through hole and/or the conduit are in a circular funnel shape.

Preferably, a flow guide sleeve is arranged outside the underwater rotating shaft;

the air guide sleeve is of a closed shell structure, and the underwater rotating shaft is arranged in an inner cavity of the air guide sleeve;

an outlet is formed in one end of the flow guide cover, and one end of the underwater rotating shaft extends out of the outlet and then is connected with the energy capturing device;

the lower end of the connecting arm is hermetically connected with the air guide sleeve;

and the inner cavity of the longitudinal through hole on the connecting arm is communicated with the inner cavity of the air guide sleeve.

The cross section of the air guide sleeve is streamline;

the cross section of the connecting arm is in a spindle shape.

Compared with the prior art, the invention has the beneficial effects that:

the underwater energy capturing device, the overwater power generation equipment and the speed change equipment are connected through the flexible transmission part, and because the power generation equipment and the speed change equipment are both positioned on the water, the sealing of the equipment is not necessary any more, the damage of the power generation device or the speed change device caused by poor sealing is avoided, and the input cost and the later maintenance cost of the power generation equipment are reduced. Meanwhile, the invention improves the stability of the power generation equipment, and is suitable for the transmission mode of generating and utilizing ocean current energy, tidal energy, river energy and other liquid energy.

Drawings

FIG. 1 is a schematic structural diagram of a tidal current energy and river energy power generation transmission device of the invention;

FIG. 2-1 is a perspective view of a connecting arm in the tidal current energy and river energy power generation transmission of the present invention;

FIG. 2-2 is a cross-sectional view of a connecting arm in the tidal current energy and river energy power generation transmission of the present invention;

FIG. 3 is a longitudinal sectional view of the upper and lower openings of the duct of the connecting arm in the tidal current energy and river energy power generation transmission device of the present invention;

FIG. 4 is a schematic structural diagram of a transmission device for generating power by tidal current energy and river energy, which adopts chain connection.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

as shown in fig. 1, the transmission device for generating power by tidal current energy and river energy of the invention comprises: flexible transmission part 1, axis of rotation 3 under water, linking arm 4 and axis of rotation 5 on water. The rectangular frame outside the water turning shaft 5 in fig. 1 indicates a support structure of the water turning shaft 5, and any one of various existing support structures may be used as long as the water turning shaft 5 can be supported above the water surface, and may be, for example, a support frame provided on a water platform or a support frame provided on a ship body. The upper part of the connecting arm is fixedly connected with the supporting structure of the overwater rotating shaft. The above-water rotating shaft 3 is connected with a generating set, namely, is directly connected with the generating set or is connected with the generating set through a speed changing device. The underwater rotating shaft is connected with an energy capturing device, and the energy capturing device can adopt various existing energy capturing devices, such as an impeller. The overwater rotating shaft and the underwater rotating shaft are arranged in parallel.

The underwater rotating shaft 3 and the overwater rotating shaft 5 are connected through the flexible transmission part 1, and the flexible transmission part 1 can be a belt, a rope, a metal flexible chain and other equivalent flexible transmission parts.

The above-water rotating shaft, the power generation equipment and the speed change equipment are not arranged in water, so that the above-water rotating shaft and the underwater transmission shaft can be sealed, or the above-water rotating shaft, the power generation equipment and the speed change equipment are not arranged in water, the above-water rotating shaft and the underwater transmission shaft are not sealed, only the underwater transmission shaft is sealed, or the above-water transmission shaft and the underwater transmission shaft are not sealed, and if the above-water rotating shaft, the underwater transmission shaft and the underwater transmission shaft are sealed.

The examples of the invention are as follows:

the first embodiment is as follows:

the flexible transmission part is a whole, and carry out the spiral winding respectively in two axis of rotation, use the rope as an example, with the lower part spiral winding of a end to end's rope on axis of rotation 3 under water, the upper portion spiral winding is on axis of rotation 5 on water, form the tensioning force with axis of rotation 5 on water, when the axis of rotation is rotatory under water, drive flexible transmission part and carry out the spiral winding at the axis of rotation under water, flexible transmission part carries out the spiral winding at the axis of rotation on water simultaneously, it is rotatory to drive the axis of rotation on water, the moment of torsion transmission that will catch the axis of rotation 3 under water in the device can be to axis of rotation 5 on water, drive change speed gear box or generating set electricity generation (change speed gear box, generating set adopt current device can, no longer.

Example two:

the flexible transmission part adopts two chains 9, specifically, as shown in fig. 4, two fluted discs coaxial with the flexible transmission part are arranged on the overwater rotating shaft (the fluted discs and the shaft adopt the existing connecting mode), and two fluted discs coaxial with the flexible transmission part are arranged on the underwater rotating shaft (the fluted discs and the shaft adopt the existing connecting mode); the chain transmission mechanism is characterized in that two parallel chains are arranged, a fluted disc on an overwater rotating shaft is wound on the upper portion of each chain, an underwater rotating shaft is wound on the lower portion of each chain, the two chains are driven to rotate simultaneously when the underwater rotating shaft rotates, and the chains drive the overwater rotating shaft to rotate. Therefore, the torque of the underwater rotating shaft of the energy capturing device is transmitted to the overwater rotating shaft to drive the speed change gear box or the generator set to generate power. During the in-service use, can also set up 2 chains more than as required, corresponding, set up the fluted disc of corresponding quantity on axis of rotation on water, the axis of rotation under water.

Example three:

in order to provide support for the flexible transmission member and at the same time limit the displacement of the flexible transmission member, the connecting arm is arranged between the above-water rotating shaft and the underwater rotating shaft on the basis of the two previous embodiments, the middle part of the flexible transmission member passes through the connecting arm, and in fig. 1, for clearly showing that the rope connects the above-water rotating shaft and the underwater rotating shaft, the rope is drawn outside the connecting arm.

The third embodiment is a specific way that the middle part of the flexible transmission part passes through the connecting arm:

for the first embodiment, two parallel longitudinal through holes are formed in the connecting arm, specifically, the tail end of the flexible transmission component is left above the upper opening of the first longitudinal through hole, the head end of the flexible transmission component enters the first longitudinal through hole from the upper opening of the first longitudinal through hole, penetrates out of the lower opening of the first longitudinal through hole and then is spirally wound on the underwater rotating shaft, penetrates out of the underwater rotating shaft and then enters the second longitudinal through hole from the lower opening of the second longitudinal through hole, then penetrates out of the upper opening of the second longitudinal through hole and then is spirally wound on the overwater rotating shaft, and the tail end of the flexible transmission component is connected with the tail end of the overwater rotating shaft into a whole after being wound out of the overwater rotating shaft;

for the second embodiment, 4 parallel longitudinal through holes are formed in the connecting arm, two longitudinal through holes on the left side are used for penetrating through the chain on the left side, and two longitudinal through holes on the right side are used for penetrating through the chain on the right side. For constructions using more than 2 chains, correspondingly, a corresponding number of longitudinal through-holes are provided in the connecting arm.

Example four:

the fourth embodiment is a specific way that the middle part of the flexible transmission part passes through the connecting arm:

for the first embodiment, two longitudinal through holes are formed in the connecting arm, a guide pipe is embedded in each longitudinal through hole, and the flexible transmission member respectively penetrates through the two guide pipes and is wound on the overwater rotating shaft and the underwater rotating shaft in the same manner as described above.

For the second embodiment, 4 parallel longitudinal through holes are formed in the connecting arm, a guide pipe is embedded in each longitudinal through hole, the left two guide pipes are used for penetrating through the left chain, and the right two guide pipes are used for penetrating through the right chain.

Example five:

as the abrasion of the flexible transmission part is easily caused at the upper opening and the lower opening of the conduit and the longitudinal through hole, as shown in figure 3, the lower opening and the upper opening 6 of the longitudinal through hole and/or the conduit are designed into the shape of a circular funnel 8, namely, the upper opening and the lower opening are both closer to the outside, the larger the diameter is, and the contact parts of the flexible transmission part and the lower opening and the upper opening are both circular arc surfaces, so that the abrasion of the rope can be reduced.

Example six:

in the water area with impure water quality, preferably, in order to prevent the underwater rotating shaft from contacting with liquid and prevent aquatic organisms or other impurities from winding on the underwater rotating shaft, the invention is provided with the guide cover 2 outside the underwater rotating shaft. The air guide sleeve 2 is of a closed shell structure, the underwater rotating shaft is arranged in an inner cavity of the air guide sleeve, an outlet is formed in one end of the air guide sleeve, and one end of the underwater rotating shaft extends out of the outlet and then is connected with the impeller. The exit adopts the mode of multiple oil blanket (installing a plurality of sealing rubber circles promptly) to seal, and the axis of rotation takes place not contact with liquid under water like this, can further increase the life-span of axis of rotation under water, reduces cost of maintenance.

If the air guide sleeve is installed, the upper part of the connecting arm is connected with the supporting structure of the overwater rotating shaft, the lower end of the connecting arm is connected with the air guide sleeve in a sealing mode, and the inner cavity of the longitudinal through hole in the connecting arm is communicated with the inner cavity of the air guide sleeve. The sealed connection between the air guide sleeve and the connecting arm can adopt various sealing modes such as sealant and the like.

The fixed linking arm that sets up can restrict flexible drive part's displacement on the one hand, and on the other hand is because flexible drive part wears in the vertical through-hole of linking arm, and the lower extreme and the kuppe of linking arm are sealing connection, and the linking arm has also played sealed effect to flexible drive part like this, has avoided liquid and flexible drive part to contact, can improve flexible drive part's life-span, reduces cost of maintenance.

Example seven:

further, in order to reduce the resistance of water, as shown in fig. 2-1 and 2-2, the cross-section of the air guide sleeve 2 of the present invention is designed to be streamlined, and the cross-section 7 of the connecting arm is designed to be spindle-shaped.

During actual operation, the one end of axis of rotation 3 under water is connected with the impeller among the energy capture device, and liquid promotes the impeller rotation, and the impeller drives axis of rotation 3 under water and rotates, is about to convert the energy of the liquid flow that the blade on the impeller caught into the moment of torsion of axis of rotation 3 under water, and axis of rotation 3 drives axis of rotation 5 on water through flexible transmission part 1 under water and rotates, and the size of moment of torsion depends on the tension size of flexible transmission part 1, and axis of rotation 5 on water connects power generation facility and generates electricity. The impeller and the power generation equipment adopt various conventional impellers, speed changers and power generators, and are not described in detail herein.

The above-described embodiment is only one embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be easily made based on the application and principle of the present invention disclosed in the present application, and the present invention is not limited to the method described in the above-described embodiment of the present invention, so that the above-described embodiment is only preferred, and not restrictive.