A power device driven by hydraulic power

Abstract

The present invention provides a power device driven by hydraulic power, comprising an action execution mechanism and a driving mechanism. The driving mechanism includes a hydraulic power device, which includes an outer ring and a core body. Between the nozzle and the drain port on the outer circumferential surface of the core body, there is at least one or more stages of secondary flow channels. Water flows in from the liquid inlet channel, and is ejected step by step through the nozzle of the core body and the secondary flow channels, acting on at least two driving recesses in the circumferential direction of the outer ring, generating a thrust force on these driving recesses to push the outer ring to rotate and do work, realizing power output. Finally, the water flows out through the drain port of the core body and through the liquid drain channel. The outer ring is drivingly connected to the action execution mechanism to drive the action execution mechanism to perform mechanical actions.

Description

Technical Field

[0001] The invention relates to the field of machinery, and in particular to a power device driven by water power. Background Art

[0002] Existing mechanical equipment, such as agricultural and industrial equipment, fishery equipment, etc., mostly use fuel or electricity as the driving energy to drive and operate. Fuel equipment generates kinetic energy by burning gasoline or diesel to drive the engine to rotate, and then drives the actuator that can convert kinetic energy into mechanical action to operate. The disadvantage of fuel equipment is that it will produce carbon dioxide exhaust after combustion, which is the source of global warming; while using electric energy to drive, larger ones consume a lot of electricity, and the existing battery capacity is limited and the duration is not long. If you want to operate for a long time, you need to prepare multiple batteries in advance and replace them in turn. The operation is cumbersome, there are certain safety hazards in electricity use, and the electricity bill is not low. Summary of the invention

[0003] To this end, the present invention provides a power device driven by water power. The driving mechanism uses the water flow in nature to generate kinetic energy and acts on an actuator that can convert the kinetic energy into mechanical action for operation. It does not need to be driven by fuel or electricity, and truly achieves clean energy.

[0004] To achieve the above-mentioned object, the present invention provides a power device driven by water power, comprising an action execution mechanism capable of converting kinetic energy into mechanical action and a driving mechanism capable of converting water potential energy into kinetic energy, wherein the driving mechanism comprises a hydraulic power device, and the hydraulic power device comprises:

[0005] An outer ring, whose inner ring surface is provided with a plurality of driving recesses in the circumferential direction;

[0006] A core body is coaxially arranged in the outer ring and can rotate relative to the outer ring, and the outer ring surface of the core body is provided with at least one nozzle, at least one discharge port, and at least one flushing channel located between the nozzle and the discharge port;

[0007] at least one liquid inlet channel connected to at least one nozzle; and

[0008] at least one liquid discharge channel connected to at least one discharge port;

[0009] The water flows in from the liquid inlet channel, and is ejected step by step through the nozzle of the core body and the secondary flushing channel, acting on at least two driving recesses on the circumference of the outer ring, generating thrust for these driving recesses to drive the outer ring to rotate and do work, thus realizing power output. Finally, the water flows out through the discharge port of the core body and the liquid discharge channel;

[0010] The outer ring is drivingly connected to the action execution mechanism to drive the action execution mechanism to execute mechanical action.

[0011] Furthermore, at least one liquid inlet channel, at least one nozzle, at least two driving recesses, at least one secondary flushing channel, at least one drain port, and at least one liquid discharge channel form an independent working unit, and the hydraulic power device includes at least one independent working unit.

[0012] Furthermore, the nozzles and the secondary flushing channels on the core body communicate with the corresponding driving recesses on the outer ring. The secondary flushing channels and the corresponding driving recesses are arranged alternately and communicate in sequence. The secondary flushing channels are arranged along the circumferential direction of the core body or the outer ring.

[0013] Furthermore, the liquid inlet channel and the liquid discharge channel are formed in the core body.

[0014] Furthermore, the core body includes:

[0015] A liquid inlet channel that forms a nozzle on the circumferential surface of the core body. Its direction is an arc line extending from the middle to the outside. The nozzle communicates with the corresponding driving recess on the outer ring to form a first-stage flow channel;

[0016] A secondary flushing channel whose direction is an arc line that bends from the edge of the core body inward and then to the edge. Each secondary flushing channel communicates with the two adjacent driving recesses on the outer ring corresponding to it, and forms an N-stage flow channel along the circumferential direction of the core body, where N is a natural number greater than or equal to 2;

[0017] Each stage of the flow channel and the corresponding driving recess on the outer ring cooperate to form a multi-stage stroke structure with decreasing water flow pressure energy.

[0018] Furthermore, the secondary flushing channel includes a return channel and a communicating stroke channel. The return channel communicates with the corresponding driving recess on the outer ring, and the stroke channel communicates with another driving recess.

[0019] Furthermore, the direction of the liquid inlet channel of the core body is a logarithmic spiral line extending from the middle to the outside. The pole of the logarithmic spiral line is set on the central axis of the core body, and the logarithmic spiral line has a direction angle of 15° - 45°.

[0020] Furthermore, a liquid inlet channel is provided on the core body. Its direction is a logarithmic spiral line extending from the middle to the outside. The direction of the logarithmic spiral line of the stroke channel of the secondary flushing channel is substantially the same as that of the logarithmic spiral line of the liquid inlet channel.

[0021] Furthermore, the hydraulic power device further includes a shaft, and the outer ring and the core body are coaxially arranged on the shaft.

[0022] Furthermore, the hydraulic power device further includes a shaft, and the outer ring and the core body are coaxially arranged on the shaft. The shaft is provided with liquid inlet and outlet channels that communicate with the liquid inlet channel and the liquid discharge channel of the core body respectively.

[0023] The liquid inlet and outlet channels in the shaft form a liquid inlet and a liquid outlet, and the liquid inlet and outlet channels are of a non-connected structure.

[0024] Further, an outer ring is cooperated with a side plate on a shaft to form a closed space, and a core body is arranged in the closed space and fixedly connected to the shaft.

[0025] Further, in the independent power generation unit, a liquid inlet channel, a nozzle, a driving recess, a secondary flushing channel, a drain port and a liquid discharge channel form a water flow path.

[0026] Further, the hydraulic power device includes more than two independent power generation units to form a multi-stage driving structure, which is arranged circumferentially along the core body or the outer ring.

[0027] Further, there are more than two driving recesses arranged on the inner ring surface of the outer ring. Each driving recess has a contour bottom surface and a driving surface. The contour line of the contour bottom surface is a logarithmic spiral, and its pole is set at the center of the core body.

[0028] Further, the water flow is taken from but not limited to rivers, river currents or tidal currents.

[0029] Further, the action execution mechanism includes but not limited to a threshing mechanism, an agricultural cultivation mechanism or a rotary self-cleaning filtering mechanism.

[0030] By the technical solution provided by the present invention, the following beneficial effects are achieved:

[0031] The power equipment driven by hydraulic power provided by this solution replaces the power equipment that conventionally uses electric energy or fuel as kinetic energy with a hydraulic power device. The multi-stage flow channels arranged on the core body of the hydraulic power device, that is, the liquid inlet channel is used as the first-stage flow channel, and each secondary flushing channel is used as the second, third, fourth... stage flow channels. The water flow acts on the driving recesses of the outer ring from the first-stage flow channel. The driving recesses communicate with the second-stage flow channel, and then return to the second-stage flow channel and act on another driving recess of the outer ring, and so on, until the water flow is discharged from the liquid discharge channel. The whole process is carried out in the forward direction along the rotation direction of the outer ring, with large torque, high transmission efficiency, high utilization rate of water flow pressure energy, and the output torque further increases with the increase of the rotational speed.

[0032] The flow channels arranged circumferentially on the core body effectively reduce the volume of the overall device, can be flexibly matched with power generation or output devices in various fields. At the same time, the more the inlet flow channels or channels are arranged circumferentially on the core body, the lower the overall weight is, and the output speed and efficiency of the device are further improved.

[0033] Directly using the high-speed water flow to enter the core body and drive the outer ring to rotate, converting the water flow pressure energy into kinetic energy. Compared with the existing generators or motors, it does not cause environmental air pollution and has the advantages of environmental protection and energy conservation.

[0034] The power equipment of this solution is driven by hydraulic power and does not require a structure driven by power supply or fuel. To a certain extent, it can replace or assist the power equipment driven by power supply or fuel, realize the utilization of clean energy, and lay a foundation for the future utilization of clean energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of the power equipment in Embodiment 1.

[0036] Figure 2 is a schematic diagram of the hydraulic power device in Embodiment 1.

[0037] Figure 3 is a side view of the hydraulic power device in Embodiment 1 along axis A.

[0038] Figure 4 is a side view of the hydraulic power device in Embodiment 1 along axis B.

[0039] Figure 5 is a cross-sectional view of the hydraulic power device in Embodiment 1.

[0040] Figure 6 is another layout diagram of the hydraulic power device in Embodiment 1.

[0041] Figure 7 is a schematic diagram of the hydraulic power device in Embodiment 2.

[0042] Figure 8 is a side view of the hydraulic power device in Embodiment 2 along axis C.

[0043] Figure 9 is a side view of the hydraulic power device in Embodiment 2 along axis D.

[0044] Figure 10 is a radial cross-sectional view of the hydraulic power device in Embodiment 2.

[0045] Figure 11 is a schematic structural diagram of the power equipment in Embodiment 4. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] To further illustrate each embodiment, the present invention provides drawings. These drawings are part of the disclosure of the present invention, mainly used to illustrate the embodiments, and can be combined with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0047] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0048] Embodiment 1

[0049] A power device driven by hydraulic power provided in this embodiment, which is an agricultural and industrial device, specifically a farming machine, includes an action execution mechanism capable of converting kinetic energy into mechanical actions and a driving mechanism for providing kinetic energy. Specifically, the action execution mechanism is only an institution capable of converting kinetic energy into mechanical actions, rather than an institution that converts mechanical energy into kinetic energy.

[0050] Refer to Figure 1 As shown, the farming mechanism of the farming machine is an action execution mechanism, and the farming mechanism includes a transmission shaft 71 and a plow blade wheel 72 arranged on the transmission shaft 71. The driving mechanism includes a water inlet pipe 102 and a hydraulic power device 10. One end of the water inlet pipe 102 is connected to a water source, and the other end is connected to the hydraulic power device 10. The hydraulic power device 10 is drivingly connected to the transmission shaft 71 to drive the transmission shaft 71 and the plow blade wheel 72 to rotate, thereby realizing the operation of the plow blade wheel 72.

[0051] Furthermore, the water source connected to the water inlet pipe 102 can be directly drawn from a reservoir with a high water head, or the water flow of a river or a stream can be used. For example, a fixed water pipe is drawn from the reservoir in advance, and the water pipe extends from the reservoir to the cultivated land area as a common water source. When the farming machine needs to be used, the water inlet pipe 102 of the driving mechanism can be directly connected to the water pipe, which can not only ensure sufficient water pressure, but also the water flowing out of the hydraulic power device 10 can be used to irrigate the cultivated land.

[0052] Still further, a flow valve is connected in series to the water inlet pipe 102. By controlling the flow valve to adjust the water flow rate, the water flow pressure introduced into the hydraulic power device 10 can be better controlled.

[0053] Specifically, refer to Figures 2 to 5 As shown, the hydraulic power device includes an outer ring 1, and a plurality of driving recesses 11 are provided on the circumferential direction of its inner ring surface; a core body 3, which is coaxially arranged inside the outer ring 1 and can rotate relative to the outer ring. At least one spray port 301, at least one discharge port 302, and at least one primary flow channel 300 located between the spray port and the discharge port are provided on the outer ring surface of the core body 3;

[0054] At least one liquid inlet channel 31, which communicates with at least one spray port 301, and the water inlet pipe 102 is connected to the liquid inlet channel 31; and

[0055] At least one liquid discharge channel 310, which communicates with at least one discharge port 302;

[0056] The water flow enters from the liquid inlet channel 31, and is ejected step by step through the nozzles 301 of the core body 3 and the secondary flow channels 300, acting on at least two driving recesses 11 in the circumferential direction of the outer ring 1, generating a thrust on these driving recesses 11 to push the outer ring 1 to rotate and do work. The water flow is discharged through the drain port of the core body 3 via the drain channel, realizing continuous power output. The hydraulic power device further includes a shaft 2, and the outer ring 1 and the core body 3 are coaxially arranged on the shaft 2.

[0057] As Figure 5 shown, the liquid inlet channel 31 and the drain channel 310 are formed in the core body 3. The nozzles 301 and the secondary flow channels 300 on the core body 3 are communicated with the corresponding driving recesses 11 of the outer ring 1. Among them, the secondary flow channels 300 are arranged in an interleaved manner with the corresponding driving recesses 11 and are communicated in sequence. The secondary flow channels 300 are arranged along the circumferential direction of the core body or the outer ring.

[0058] As Figure 5 , the core body 3 includes: a liquid inlet channel 31, which forms a nozzle 31 on the circumferential surface of the core body, and its trend is an arc line extending from the middle to the outside. The nozzle 301 is communicated with the corresponding driving recess 11 of the outer ring, forming a first-stage flow channel;

[0059] The secondary flow channel 300, its trend is an arc line that bends and extends from the edge of the core body 3 inward and then to the edge. Each secondary flow channel 300 is communicated with the two adjacent driving recesses 11 corresponding to the outer ring 1, forming an N-stage flow channel along the circumferential direction of the core body, where N is a natural number greater than or equal to 2. It should be noted that: if it is a 2-stage flow channel here, it includes the first-stage flow channel (liquid inlet channel) and the second-stage flow channel (secondary flow channel); if it is a 3-stage flow channel, it includes the first-stage flow channel (liquid inlet channel), the second-stage flow channel (secondary flow channel), and the third-stage flow channel (another secondary flow channel),...

[0060] Each stage of the flow channel and the corresponding driving recess of the outer ring cooperate to form a multi-stage stroke structure with decreasing water flow pressure energy.

[0061] According to the requirements of the load, the hydraulic power device can be designed. The core body 3 can be provided with 2-stage flow channels, 3-stage flow channels, or more-stage liquid inlet flow channels. Each stage cycles to do work, and the energy is fully utilized to maximize the use efficiency to meet the requirements of output torque and rotational speed.

[0062] As Figure 6 is a schematic diagram of a 4-stage flow channel. After the compressed water flow enters from the first-stage flow channel 311, it passes through the second, third, and fourth-stage flow channels 312, 313, and 314, and is ejected to act on the corresponding driving recess 11, and finally is output through the drain flow channel 310; Figure 5 is a schematic diagram of a 5-stage liquid inlet flow channel, and the working process is the same as Figure 6 shown. As Figure 6 , the secondary flow channel 300 includes a return channel and a communicating stroke channel, as Figure 6The return channel 3131 and the communicating stroke channel 3132 in the third-order channel in [it], the return channel 3131 communicates with the driving recess corresponding to the outer ring, and the stroke channel 3132 communicates with another driving recess.

[0063] Please refer to Figure 2 , the hydraulic power device further includes a shaft 2, the outer ring 1 and the core 3 are coaxially arranged on the shaft 2, and the shaft 2 is provided with liquid inlet and outlet channels 21, 210 which communicate with the liquid inlet channel 31 and the liquid discharge channel 310 of the core 3 respectively. The liquid inlet and outlet channels in the shaft form an inlet and an outlet, and the liquid inlet and outlet channels are of a non-communicating structure. The outer ring 1 is cooperated with the shaft 2 through side plates 41, 42 to form a closed space, and the core 3 is arranged in the closed space and fixedly connected to the shaft 2. In the present invention, the core 3 is provided with at least two-order channels, and each order of channel communicates with the driving recess corresponding to the outer ring, and finally the water flow is discharged through the liquid discharge channel or the channel.

[0064] Please refer to Figure 2 , in the present invention, the core 3 can be formed by the cooperation of a left core and a right core, and the liquid inlet channel 31 and the liquid discharge channel 310 are arranged on the mating surface of the left and right cores. The core 3 can also be integrally cast.

[0065] Please refer to Figure 2 , Figure 5 , in this embodiment, it is a first-level driving structure. One water flow channel is arranged circumferentially on the core 3 to form a first-level driving structure. The water flow channel is also called an independent work unit. One liquid inlet channel 31, one nozzle 301, at least two driving recesses 11, at least one secondary impact channel 300, one discharge port 302 and one liquid discharge channel 310 on the core 3 and the outer ring 1 form an independent work unit. The hydraulic power device includes at least one independent work unit. The liquid inlet channel 31, the nozzle 301, the driving recess 11, the secondary impact channel 300, the discharge port 302 and the liquid discharge channel 310 in the independent work unit constitute the water flow path.

[0066] Please refer to Figure 2 , Figure 5 or Figure 6 , on the inner ring surface of the outer ring 1 in the present invention, there are more than 2 driving recesses 11 arranged. Each driving recess has a contour bottom surface 111 and a driving surface 112. The contour line of the contour bottom surface 111 can be a common arc line or a spiral line. When the contour line of the contour bottom surface is a logarithmic spiral line, its pole is set on the shaft. Each driving recess 11 communicates with the adjacent-order channels at the same time so that the water flow entering from the previous-order channel is output by the next-order channel.

[0067] In the present invention, the liquid inlet channel of the core 3, that is, the first-order channel, can be a common arc line or a spiral line, and the stroke channels in each secondary impact channel, that is, the N-order channel, can also be a common arc line or a spiral line.

[0068] Such as Figure 5and Figure 6 On the core 3 of the present invention, a liquid inlet channel 31 is provided, and its direction is a logarithmic spiral extending from the middle to the outside. The stroke channel of the secondary flushing channel 300 has a logarithmic spiral direction, and the logarithmic spiral direction of the stroke channel of the secondary flushing channel is substantially the same as that of the logarithmic spiral of the liquid inlet channel. The direction of the liquid inlet channel of the core 3 is a logarithmic spiral extending from the middle to the outside. The pole of the logarithmic spiral is set on the central axis of the core. The logarithmic spiral direction angle is 15° - 45°. The smaller the angle, the longer the flow channel and the more losses; the larger the angle, the smaller the tangential component force of the driving outer ring.

[0069] Please refer to Figure 2 , Figure 3 and Figure 4 , in the shaft 2 of the present invention, the liquid inlet and outlet shaft channels 21, 210 form an inlet and an outlet, and the liquid inlet and outlet shaft channels are of a non-connected structure. The inlet and outlet of the shaft can be set at one end of the shaft or at both ends of the shaft. The liquid inlet shaft channel 21 communicates with the liquid inlet channel 31 of the core. The liquid outlet of the shaft extends axially to form a liquid outlet shaft channel 210, and the liquid outlet shaft channel communicates with the liquid discharge channel 310 of the core.

[0070] The hydraulic power device involved in this application refers to a device that can convert hydraulic energy into mechanical rotation. In addition to the necessary outer ring, core and their corresponding concave structure or flow channel structure design, the device can also additionally include other components; for example, it can additionally include a housing and a sealing structure for providing external protection, and another example is that it can additionally include a coupling for providing torque transmission, etc. Among them, the outer ring can have different specific forms according to different mechanical rotation output methods. For example, an external tooth-shaped structure is formed on the outer side of the outer ring to facilitate the output of kinetic energy through the way of gear transmission; another example is that the outer ring has a pulley groove to output kinetic energy through the way of belt transmission; another example is that the outer ring has a mounting flange, which can be conveniently installed with a coupling to output kinetic energy; and so on. The materials of the core and the outer ring are made of hard materials, not limited to metals, metal alloys, plastics, composite materials. The processing methods of the concave structure or flow channel structure of the core and the outer ring can be realized by all known production means, including but not limited to die casting, forging, extrusion, 3D printing, and so on.

[0071] Figure 2 and Figure 5 It should be noted in Figure 1 that although the liquid inlet channel 31 and the liquid discharge channel 310 of the core and the liquid inlet shaft channel 21 and the liquid outlet shaft channel 210 do not correspond according to the drawing rules, for the purpose of vivid illustration, Figure 7 in Figure 10 the liquid inlet channel and the liquid discharge channel of the core refer to the liquid inlet channel and the liquid discharge channel. In Embodiment 2

[0072] Embodiment 2

[0073] The power device driven by hydraulic power provided in this embodiment has a structure that is generally the same as that of Embodiment 1, except for the hydraulic power device. For details, please refer to Figures 7 to 10 , in the hydraulic power device, there are 2 independent working units forming a two-stage drive structure, that is, 2 water flow channels are arranged circumferentially on the core body 3, and each water flow channel includes an inlet channel 31 with more than 1 stage and a secondary impact channel 300 and is arranged circumferentially along the core body 3 and a drain channel. The hydraulic power device includes an outer ring 1, on the inner circumferential surface of which there are a plurality of driving recesses 11 arranged circumferentially; a core body 3, which is coaxially arranged inside the outer ring 1 and can rotate relative to the outer ring. There are 2 groups of nozzles, drain ports, and at least one secondary impact channel is arranged between each group of nozzles and drain ports on the outer circumferential surface of the core body; there are 2 inlet channels 31, 32 on the core body, which are correspondingly connected to the nozzles; and 2 drain channels 310, 320, which are correspondingly connected to the drain ports; two water flows enter from the 2 inlet channels of the core body respectively, and are ejected step by step through the nozzles and the secondary impact channels 300 of the core body 3, acting on the corresponding driving recesses 11 on the circumference of the outer ring, generating a thrust to push the outer ring 1 to rotate and do work, realizing power output. Finally, the water flow is discharged through the drain port of the core body through the drain channel. The above-mentioned one inlet channel, one nozzle, the corresponding number of driving recesses, and the corresponding secondary impact channel, drain port, and one drain channel form an independent working unit.

[0074] The hydraulic power device further includes a shaft 2, and the outer ring 1 and the core body 3 are coaxially arranged on the shaft. The shaft 2 is provided with inlet shaft channels 21, 22 and outlet shaft channels 210, 220 which are respectively connected to the inlet channels 31, 32 and the drain channels 310, 320 of the core body. There are two inlet ports and two outlet ports corresponding to the water flow channels on the shaft 2; high-speed water flow with a certain pressure enters from the two inlet ports of the shaft 2, is ejected through the inlet channels of the core body 3 and acts on the driving recesses 11 of the outer ring 1, generating a thrust to push the outer ring 1 to rotate and do work. Finally, the water flow returns to the corresponding outlet port through the drain channel of the core body 3, realizing continuous power output.

[0075] Embodiment 3

[0076] The power device driven by hydraulic power provided in this embodiment has a structure that is generally the same as that of Embodiment 1, except for the hydraulic power device. In the hydraulic power device of this embodiment, there are 4 or more independent working units forming a multi-stage drive structure. 3 or more water flow channels are arranged circumferentially on the core body. Each water flow channel includes an inlet channel with more than 1 stage and a secondary impact channel and is arranged circumferentially along the core body and a drain channel. The inlet channel and the drain channel are arranged on the mating surface of the left and right core bodies. The shaft is provided with the corresponding number of inlet shaft channels and outlet shaft channels as the water flow channels. The water flow enters from the inlet shaft channels of the shaft, is ejected through the inlet flow channels of the core body and acts on the driving recesses of the outer ring, pushing the outer ring to rotate and do work, realizing continuous power output. Finally, the compressed water flow returns to the corresponding outlet shaft channels through the respective drain flow channels of the core body.

[0077] Example 4

[0078] A power device driven by hydraulic power provided in this embodiment is specifically a threshing machine. Refer to Figure 11 As shown, the action execution mechanism of the threshing machine is a threshing mechanism, including: a drum 81 and a threshing structure 82 provided on the drum 81. The outer ring 1 of the hydraulic power device 10 is drivingly connected to the drum 81 to drive the drum 81 to rotate, thereby realizing the operation of the threshing mechanism.

[0079] Specifically, belt grooves 83 are provided on both the outer ring 1 of the hydraulic power device 10 and the drum, and are drivingly connected through a belt 84, thereby realizing the driving connection between the outer ring 1 of the hydraulic power device 10 and the drum 81.

[0080] The structure of the hydraulic power device 10 is the same as that in Example 1 and will not be elaborated here.

[0081] The water flow in the above-mentioned embodiment is taken from natural resources such as rivers and river currents. Of course, in other embodiments, it is not limited to this. The water flow can also be taken from tidal currents, and the outer ring of the hydraulic power device is rotated by the tidal force of the tidal current, thereby driving the action execution mechanism of the corresponding power device to act.

[0082] Example 5

[0083] The power device driven by hydraulic power provided in this embodiment is specifically a rotary self-cleaning filter. The specific structure of the rotary self-cleaning filter refers to the structure of the rotary self-cleaning filter disclosed in Chinese Patent Application No. 201410745637.3. Different from this structure, in this embodiment, its hydraulic motor is replaced with the hydraulic power device in this case. The structure of the hydraulic power device is the same as the structure of the hydraulic power device in Example 1. The liquid inlet channel of the hydraulic power device is connected to the water inlet at the top of the cylinder cover. The outer ring of the hydraulic power device is drivingly connected to the rotating shaft. By replacing the original hydraulic motor with the hydraulic power device in this case, its volume will be smaller and the power output will be more sufficient.

[0084] The above-mentioned embodiments respectively disclose power devices with different action execution mechanisms. Of course, the power device of this solution is not limited to the above, and can also be power devices with action execution mechanisms such as cleaning mechanisms, moving mechanisms, and pressing mechanisms, as long as the hydraulic power device in this case can be used to replace the original driving mechanism of the power device.

[0085] The power equipment driven by hydraulic power provided by the above embodiments replaces the power equipment that conventionally uses electric energy or fuel as kinetic energy with a hydraulic power device. The multi-stage flow channels provided in the core body of the hydraulic power device, that is, the liquid inlet channel serves as the first-stage flow channel, and each impact flow channel serves as the second, third, fourth... stage flow channels. The water flow acts on the driving recesses on the outer ring from the first-stage flow channel. The driving recesses communicate with the second-stage flow channel, and then return to the second-stage flow channel and act on another driving recess on the outer ring. By analogy, until the water flow is discharged from the liquid discharge channel. The whole process proceeds in the forward direction along the rotation direction of the outer ring, with large torque, high transmission efficiency, and high utilization rate of water flow pressure energy. The output torque further increases with the increase in rotational speed.

[0086] The flow channels arranged circumferentially on the core body effectively reduce the volume of the overall device and can be flexibly matched with power generation or output devices in various fields. At the same time, the more the inlet flow channels or channels are arranged circumferentially on the core body, the lower the overall weight, further improving the output speed and efficiency of the device.

[0087] Directly utilize the high-speed water flow to enter the core body and drive the outer ring to rotate. By converting the water flow pressure energy into kinetic energy, compared with existing generators or motors, it does not cause environmental air pollution and has the advantages of environmental protection and energy conservation.

[0088] The hydraulic power device of this power equipment is driven by hydraulic power and does not require a structure driven by power or fuel. To a certain extent, it can replace or assist power equipment driven by power or fuel, realizing the utilization of clean energy and laying a foundation for the future utilization of clean energy.

[0089] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention defined by the appended claims, and all are within the protection scope of the present invention.

Claims

1. A power device driven by hydraulic power, comprising an action execution mechanism capable of converting kinetic energy into mechanical actions and a driving mechanism capable of converting water potential energy into kinetic energy. Characterized in that: The driving mechanism includes a hydraulic power device, and the hydraulic power device includes: An outer ring, on the inner circumferential surface of which a plurality of driving recesses are provided in the circumferential direction; each driving recess has a contour bottom surface and a driving surface, and the contour line of the contour bottom surface is a logarithmic spiral, and its pole is set at the center of the core. A core, which is coaxially arranged inside the outer ring and can rotate relative to the outer ring. At least one spray port, at least one drain port, and at least one secondary flow channel located between the spray port and the drain port are provided on the outer circumferential surface of the core. At least one liquid inlet channel, which communicates with at least one spray port; its trend is an arc line extending from the middle to the outside, and the spray port communicates with the corresponding driving recess of the outer ring to form a first-stage flow channel; and At least one liquid discharge channel, which communicates with at least one drain port. The liquid inlet channel and the liquid discharge channel are formed in the core. The spray port and the secondary flow channel on the core communicate with the corresponding driving recesses of the outer ring, and the secondary flow channel is arranged along the circumferential direction of the core or the outer ring; the trend of the liquid inlet channel is a logarithmic spiral extending from the middle to the outside, and the pole of this logarithmic spiral is set on the central axis of the core, and the logarithmic spiral trend angle is 15°-45°. The secondary flow channel, its trend is an arc line that bends and extends from the edge of the core inward and then to the edge. Each secondary flow channel communicates with the two adjacent driving recesses corresponding to the outer ring, and an N-stage flow channel is formed along the circumferential direction of the core, where N is a natural number greater than or equal to 2; each stage of the flow channel cooperates with the corresponding driving recess of the outer ring to form a multi-stage stroke structure with decreasing hydraulic energy. Water flows in from the liquid inlet channel, is ejected step by step through the spray port and the secondary flow channel of the core, acts on at least two driving recesses on the circumferential direction of the outer ring, generates a thrust on these driving recesses to push the outer ring to rotate and do work, realizes power output. Finally, the water flows out through the drain port of the core and through the liquid discharge channel. The outer ring is drivingly connected to the action execution mechanism to drive the action execution mechanism to execute mechanical actions.

2. The power device driven by hydraulic power according to claim 1, Characterized in that: At least one liquid inlet channel, at least one spray port, at least two driving recesses, at least one secondary flow channel, at least one drain port and at least one liquid discharge channel form an independent working unit, and the hydraulic power device includes at least one independent working unit.

3. The power device driven by hydraulic power according to claim 1, Characterized in that: The hydraulic power device further includes a shaft, the outer ring and the core are coaxially arranged on the shaft, and liquid inlet and outlet shaft channels are provided on the shaft and communicate with the liquid inlet channel and the liquid discharge channel of the core respectively.

4. The power device driven by hydraulic power according to claim 2, Characterized in that: The hydraulic power device includes more than two independent working units to form a multi-stage driving structure, and is arranged along the circumferential direction of the core or the outer ring.

5. The power device driven by hydraulic power according to any one of claims 1 to 4, Characterized in that: The water flow is taken from a river, a river current or a tidal current.

6. The power device driven by hydraulic power according to any one of claims 1 to 4, Characterized in that: The action execution mechanism includes a threshing mechanism, an agricultural tillage mechanism or a rotary self-cleaning filtering mechanism.

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