Sound ratchet wheel blade separation type turbine device

Abstract

The invention discloses a sound ratchet wheel blade separation type turbine device which is characterized in that the device comprises a cover body, end covers are arranged at the two ends of the cover body, rotatable fan blades are connected to the centers of the two end covers respectively, the fan blades are provided with internal threads, a rotating shaft is sleeved with a turbine shell, and the two ends of the rotating shaft are designed to be external threads; the two fan blades are screwed to the two ends of the rotating shaft through thread structures, the stator is installed in the middle of the rotating shaft, the rotor corresponding to the stator is installed on the inner side of the turbine shell, the upper-layer blades are installed on the upper portion of the outer wall of the turbine shell, the lower-layer blades are installed on the lower portion of the outer wall of the turbine shell, and the rotating directions of the upper-layer blades and the lower-layer blades are opposite. A movable upper pawl and a movable lower pawl are correspondingly installed on the upper portion and the lower portion of the rotating shaft respectively, when the upper fan blades rotate, the rotating shaft moves downwards, and under the action of the guiding part, the movable upper pawl mechanism is meshed with the upper-layer blades. When the lower fan blade rotates, the rotating shaft moves upwards, the movable lower pawl mechanism is meshed with the lower-layer blade, rotation power is continuously provided for the turbine through alternate rotation of the two pairs of blades, and the problem that the turbine can only generate electricity through one-way airflow is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of fluid power generation, and in particular relates to a ratchet blade separation turbine device. Background Art

[0002] Wave energy mainly refers to the kinetic energy and potential energy of waves on the ocean surface. The energy of waves is related to factors such as the square of the wave height and the wave movement period. It is an inexhaustible renewable clean energy. There are various power generation devices derived from wave energy. For example, patent announcement number CN118375549B is a backward curved pipe wave energy power generation buoy and its air turbine control device and method. It uses sensors to collect airflow data to change the airflow through the turbine, effectively ensuring that each unidirectional airflow can be blown to the fan blades with maximum efficiency, realizing energy collection in different environments and different time periods, and ensuring the single energy conversion efficiency. However, the turbine blades are fixed blades and have only one direction. When the wave airflow changes direction, the turbine must experience a state of deceleration and then change direction of rotation. The change of air direction generally takes a few seconds to more than ten seconds. Such a rapid wind direction change will reduce the service life of the turbine and reduce the overall power generation efficiency. Patent Publication No. CN118188274A is a shore-based ocean energy power generation device. This technology mainly uses the impact of waves on the turbine rotor to convert the kinetic energy of the fluid into the mechanical energy of the rotor. A seawater storage device is designed to collect the fluid that has impacted the first turbine and impact the second turbine, thereby increasing the energy conversion efficiency. Its technical solution causes seawater to directly contact the turbine rotor and impact the power generation mechanism, which will cause the entire mechanism to be gradually corroded by seawater, reducing the service life of the entire mechanism. Patent Publication No. CN115750190A is an impact-type shaftless air turbine for an oscillating water column wave energy device. The device cancels the common axial flow turbine shaft system structure, increases the flow area of ​​the airflow in the inner cavity, and improves the workability of the air turbine. In addition, guide vanes are added to change the direction of the airflow, so that when the external airflow changes in the opposite direction, the turbine rotor will not change the rotation direction. However, the airflow changed in direction by the guide vanes of this technology will lose too much energy, resulting in a significant reduction in the energy conversion efficiency of the turbine. Patent publication number CN202954921U is a shore-based wave power generation device. This technology mainly uses waves to generate thrust on the baffle, which in turn causes the piston to move in the air chamber, generating wind energy that flows through the pipeline and drives the turbine to rotate and generate electricity. The overall device has a small investment, a simple structure, and is easy to install. However, this technology has the following defects: the waves are in direct contact with the device itself, which is easily corroded by seawater, reducing the service life of the entire device. The power of the power turbine is converted from the mechanical energy of the waves into the kinetic energy of the baffle, then into the mechanical energy of the air, and finally into electrical energy through the turbine. The whole process will produce a large energy loss, reducing the energy conversion efficiency.

[0003] From the above existing technologies, it can be known that most of the existing power generation devices generate electricity using unidirectional airflow. When the airflow changes, the turbine energy conversion efficiency is greatly reduced. Summary of the invention

[0004] The purpose of the present invention is to design a ratchet blade separation turbine device, which continuously provides rotational power to the turbine through the alternating rotation of two pairs of blades to solve the problem that the turbine can only generate electricity through unidirectional airflow.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A ratchet blade separation turbine device, characterized in that: the device includes a cover body, end covers are arranged at both ends of the cover body, and rotatable fan blades are connected to the centers of the two end covers respectively, and the fan blades are provided with internal threads. A rotating shaft is sleeved in the turbine shell, and both ends of the rotating shaft are designed to be external threads. Two fan blades are screwed to the two ends of the rotating shaft through a threaded structure, a stator is installed in the middle of the rotating shaft, and a rotor is installed on the inner side of the turbine shell corresponding to the stator. Upper blades are installed on the upper part of the outer wall of the turbine shell, and lower blades are installed on the lower part of the outer wall of the turbine shell. The upper blades and the lower blades rotate in opposite directions. A movable upper pawl and a movable lower pawl are respectively installed on the upper and lower parts of the corresponding rotating shaft. When the upper fan blade rotates, the rotating shaft moves downward, and under the action of the guide part, the movable upper pawl mechanism bites the upper blade; when the lower fan blade rotates, the rotating shaft moves upward, and the movable lower pawl mechanism bites the lower blade.

[0006] Furthermore, the cover body is in a cylindrical shape, a ventilation hole is arranged at the end cover, a fixed shaft is arranged at the center of the end cover, and the fan blades are installed on the fixed shaft through bearings.

[0007] Furthermore, the size of the upper blades is larger than that of the lower blades.

[0008] Furthermore, the structures of the upper blades and the lower blades are composed of blades on the outer ring and unidirectional helical teeth on the inner ring.

[0009] Furthermore, the structures of the movable upper pawl and the movable lower pawl are as follows: a sleeve is installed on the rotating shaft, and the movable pawls are hinged at both ends of the sleeve. The movable pawls can bite the unidirectional oblique teeth of the upper blade and the lower blade.

[0010] Furthermore, the guide portion is an inclined slide rail, and the front end of the movable pawl falls on the slide rail.

[0011] Furthermore, ratchet openings are provided on the outer wall of the turbine casing corresponding to the upper blades and the lower blades.

[0012] The following beneficial effects can be obtained through the above technical solution: The present invention achieves the effect of making the turbine rotate in a specified direction when the wind direction changes through the ratchet mechanism, and the movable pawl of the ratchet can be retracted when no power is needed, so that the influence of the change of wind direction on the rotation of the entire turbine is further reduced, and the noise during the rotation of the ratchet is greatly reduced, thereby ensuring the stability of the system operation. Under the premise of ensuring the energy conversion rate, the stability and service life of the system are improved.

[0013] Allowing the turbine rotor to rotate independently of the turbine stator ensures the simple structure of the blades, which in turn increases their service life. It also ensures that when the wind direction generated by waves changes, the turbine will not change its rotation direction, thus increasing the overall service life of the turbine and its power generation efficiency.

[0014] The invention adopts a vertically assembled structure, and two blades, one large and one small, with different blade directions are provided in the vertical direction of the turbine. When the wind blows through the mechanism from top to bottom, the ratchet teeth in the upper blades engage with the pawls, driving the turbine casing to rotate, and the rotation direction of the lower blades is opposite to that of the upper blades, and the ratchet teeth cannot engage with the pawls, making their rotation direction opposite to that of the upper blades and the turbine casing driven to rotate, and without affecting the rotation of the turbine casing; when the wind blows through the mechanism from bottom to top, the ratchet teeth in the lower blades engage with the pawls, driving the turbine casing to rotate, and the rotation direction of the upper blades is opposite to that of the lower blades, and the ratchet teeth cannot engage with the pawls, making their rotation direction opposite to that of the lower blades and the turbine casing driven to rotate, and without affecting the rotation of the turbine casing, thereby improving the utilization rate of wave energy and increasing the power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a diagram of the turbine casing structure.

[0016] Figure 2 It is an internal structure diagram.

[0017] Figure 3 This is a diagram of the blade structure.

[0018] Figure 4 This is a diagram of the internal structure of the turbine device.

[0019] Figure 5 It is a state diagram of the turbine device.

[0020] In the figure: In the figure: 1. fan blade; 2. rotating shaft; 3. sleeve; 4. movable upper pawl; 5. upper blade; 6. stator; 7. rotor; 8. turbine casing; 9. lower blade; 10. movable lower pawl; 11. guide part; 12. cover body; 13. fixed shaft. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1-5 As shown, a ratchet blade separation turbine device with a hissing sound is shown, the device includes a cover body 12, end covers are arranged at both ends of the cover body, and rotatable fan blades are connected to the centers of the two end covers respectively. The fan blades are provided with internal threads, and a rotating shaft is sleeved in the turbine shell. Both ends of the rotating shaft are designed as external threads. Two fan blades are screwed to the two ends of the rotating shaft through a threaded structure, a stator 6 is installed in the middle of the rotating shaft, and a rotor 7 is installed on the inner side of the turbine shell corresponding to the stator. Upper blades 5 are installed on the upper part of the outer wall of the turbine shell, and lower blades 9 are installed on the lower part of the outer wall of the turbine shell. The upper blades and the lower blades rotate in opposite directions. A movable upper pawl 4 and a movable lower pawl 10 are respectively installed on the upper and lower parts of the corresponding rotating shaft. When the upper fan blade rotates, the rotating shaft moves downward, and under the action of the guide part, the movable upper pawl mechanism bites the upper blade; when the lower fan blade rotates, the rotating shaft moves upward, and the movable lower pawl mechanism bites the lower blade.

[0022] The upper blades 5 (large turbine blades) and the lower blades 9 (small turbine blades) are connected to the turbine casing by a ratchet structure (composed of blades on the outer ring and unidirectional helical teeth on the inner ring). The rotor 7 is embedded in the inner side of the casing and rotates with the casing. The stator is mounted on the rotating shaft 2 and is placed inside the casing and is not connected to the casing. It always maintains relative motion with the rotor. When the wind blows through the mechanism from top to bottom, the upper blades rotate. Based on the principle of thread, it is determined that the shaft moves downward when rotating. The ratchet (one-way helical tooth) in the upper blades can engage the pawl at this time, driving the turbine casing to rotate. Since the rotation direction of the lower blades is opposite to that of the upper blades, the movable lower pawl cannot engage the ratchet of the lower blades, so that it rotates with the upper blades and the turbine casing driven to rotate without affecting the rotation of the turbine casing. At this time, the rotor and the stator rotate relative to each other; when the wind blows through the mechanism from bottom to top, similarly, the lower blades rotate. Based on the principle of thread, it is determined that the shaft moves upward when rotating. The ratchet in the lower blades engages the pawl, driving the turbine casing to rotate. The rotation direction of the upper blades is opposite to that of the lower blades, and the ratchet cannot engage the pawl, so that it rotates with the lower blades and the turbine casing driven to rotate without affecting the rotation of the turbine casing. At this time, the rotor and the stator still rotate relative to each other in the original direction, so that kinetic energy can be converted in both directions, thereby improving the utilization rate of wave energy and increasing the power generation efficiency.

[0023] Figure 4As shown, based on the above embodiment, the fan blades, the rotating shaft, the sleeve and the movable pawl also constitute an umbrella-shaped ratchet mechanism, wherein the fan blades are connected to the rotating shaft by threads, the sleeve is connected to the rotating shaft by bearings, and the movable pawl is connected to the sleeve by pins. When the wind blows through the mechanism from top to bottom, the upper fan blades rotate, and under the threaded structure, the rotating shaft gradually moves downward, and the movable pawl 4 of the movable upper pawl mechanism opens along the inclined slide rail (guide portion 11); at the same time, the lower fan blades rotate, and under the threaded structure, the rotating shaft still gradually moves downward, and the movable pawl 4 of the movable lower pawl mechanism shrinks along the inclined slide rail (guide portion 11). When the wind blows through the mechanism from bottom to top, the upper fan blades rotate, and under the threaded structure, the rotating shaft gradually moves upward, and the upper movable pawl shrinks along the inclined slide rail; the lower fan blades rotate, so that the rotating shaft gradually moves upward at the same time, and the movable pawl of the movable upper pawl mechanism opens along the slide rail.

[0024] In order to enable the umbrella-like structure to be retracted and unfolded as expected, the turbine housing of the present invention is provided with a pawl limiting space, a pawl opening, and a slide rail guide 11, wherein the pawl limiting space is a cavity formed as a truncated cone in the upper and lower parts of the turbine housing, and the movable upper pawl mechanism and the movable lower pawl mechanism are completely restricted to move in the cavity, reducing the equipment failure rate. When the external airflow blows the mechanism from top to bottom, the fan blade rotates, the shaft is screwed down, and the sleeve fixed in the vertical direction also moves downward. The movable pawl moves and opens along the inclined slide rail, and extends from the pawl opening on the side of the turbine, which can effectively bite the blade. When the large turbine fan blade is blown by the wind from top to bottom, its inner ring pawl hooks the movable pawl extending from the turbine, driving the turbine housing to rotate, and the rotor is embedded in the turbine housing and rotates together, rotating relative to the stator to generate electricity.

[0025] At the same time, the shaft moves upward, the lower movable pawl moves along the lower slide rail, and shrinks and closes under the constraint of the pawl limit space, and retracts from the pawl opening on the side of the turbine. The inner ring pawl is not braked by the movable pawl of the lower layer.

[0026] Among them, in order to ensure that the pawl can be smoothly retracted according to the envisioned positive route and to minimize the power required to drive the retraction, the slide rail is designed to be inclined 30° from the outside to the inside according to the size of the movable pawl, and the rotating shaft and the sleeve are connected with a thrust ball bearing.

[0027] The upper blade 5 (large turbine blade) and the lower blade 9 (small turbine blade) are in opposite directions to ensure that the two blades can rotate in opposite directions when there is wind blowing in the same direction. However, the ratchet directions of the two blades are consistent, so that when the two blades rotate in opposite directions, only one of the blades provides rotational power to the turbine, and the other blade is idle without the movable ratchet brake, which will not have too much impact on the rotation of the turbine. Among them, the rotating shaft can be formed by two upper and lower threaded pillars, and a stator is connected between the upper and lower threaded pillars. Because the threaded pillar and the movable pawl are connected by a sleeve through a bearing, the rotating shaft will not rotate with the turbine housing, which not only plays a role in fixing the stator, but also because the upper and lower threaded pillars need to move up or down synchronously during system operation, this design also ensures the synchronization of the movement of the upper and lower threaded pillars. The present invention only achieves the effect of making the turbine rotate in a specified direction when the wind direction is changed through the ratchet mechanism. When the wind direction is changed, the influence of the fan blades rotating relative to the turbine on the rotation of the entire turbine is further reduced, and the noise when the ratchet rotates is greatly reduced, ensuring the stability of the system operation. Under the premise of ensuring the energy conversion rate, the stability and service life of the system are improved.

[0028] The above are all preferred embodiments of the present invention. For ordinary technicians in this technical field, without departing from the principle of the present invention, various equivalent modifications to the present invention belong to the protection scope of the claims attached to this application.

Claims

1. A ratchet blade separation turbine device, characterized in that: The device includes a cover body, end covers are arranged at both ends of the cover body, and rotatable fan blades are connected to the centers of the two end covers respectively. The fan blades are provided with internal threads, and a rotating shaft is sleeved in the turbine shell. The two ends of the rotating shaft are designed as external threads. The two fan blades are screwed to the two ends of the rotating shaft through a threaded structure. A stator is installed in the middle of the rotating shaft, and a rotor is installed on the inner side of the turbine shell corresponding to the stator. The upper blades are installed on the upper part of the outer wall of the turbine shell, and the lower blades are installed on the lower part of the outer wall of the turbine shell. The upper blades and the lower blades rotate in opposite directions. A movable upper pawl and a movable lower pawl are respectively installed on the upper part and the lower part of the corresponding rotating shaft. When the upper fan blade rotates, the rotating shaft moves downward, and under the action of the guide part, the movable upper pawl mechanism bites the upper blade; when the lower fan blade rotates, the rotating shaft moves upward, and the movable lower pawl mechanism bites the lower blade.

2. The ratchet blade separation turbine device according to claim 1, characterized in that: The cover body is in a cylindrical shape, a ventilation hole is arranged at the end cover, a fixed shaft is arranged at the center of the end cover, and the fan blades are installed on the fixed shaft through bearings.

3. The ratchet blade separation turbine device according to claim 1, characterized in that: The size of the upper blades is greater than that of the lower blades.

4. A ratchet blade separation turbine device according to claim 1 or 3, characterized in that: The structure of the upper blades and the lower blades is composed of blades on the outer circle and unidirectional helical teeth on the inner circle.

5. The ratchet blade separation turbine device according to claim 4, characterized in that: The structures of the movable upper pawl and the movable lower pawl are as follows: a sleeve is installed on the rotating shaft, and the movable pawls are hinged at both ends of the sleeve. The movable pawls can bite the unidirectional oblique teeth of the upper blade and the lower blade.

6. The ratchet blade separation turbine device according to claim 5, characterized in that: The guide part is an inclined slide rail, and the front end of the movable pawl falls on the slide rail.

7. The ratchet blade separation turbine device according to claim 1, characterized in that: The outer wall of the turbine housing corresponding to the upper blades and the lower blades is provided with ratchet openings.

Images