CN220365516U - Turbine type hydraulic oscillator - Google Patents

Abstract

The application relates to the technical field of oil and gas drilling, in particular to a turbine type hydraulic oscillator. The turbine type hydraulic oscillator comprises a shell, a static valve plate and a movable valve cover, wherein a rotating piece is arranged in the shell, the movable valve cover is fixed at one end of the rotating piece along the rotating axis direction of the rotating piece, and the rotating piece is used for driving the movable valve cover to rotate; the static valve plate is arranged in the shell and is positioned at one end of the movable valve cover, which is far away from the rotating piece, and an installation gap is formed between the static valve plate and the movable valve cover. The embodiment of the application provides a turbine type hydraulic oscillator, which aims to solve the problems that the turbine type hydraulic oscillator in the related art is high in self-pressure consumption and abrasion of a movable valve plate and a static valve plate.

Description

Turbine type hydraulic oscillator

Technical Field

The application relates to the technical field of oil and gas drilling, in particular to a turbine type hydraulic oscillator.

Background

In order to solve the problems caused by overlarge friction force between a drill string and a well wall, a great deal of researches on the vibration resistance reduction technology of the drill string are carried out at home and abroad, and a hydraulic oscillator is developed.

Currently, the existing hydraulic oscillators are distinguished from the power section and can be classified into screw-driven type and turbine-driven type. The screw driven hydraulic oscillator has the advantages of mature technology, stable and reliable operation and the like, but because the part stator of the screw driven hydraulic oscillator contains rubber materials, the screw driven hydraulic oscillator is used under oil-based mud or high-temperature working conditions, the problems of rubber dropping, pump blocking or insufficient power, high self pressure and the like are easy to occur, and the application range of the screw driven hydraulic oscillator is limited;

the turbine type hydraulic oscillator solves the problems of rubber dropping, insufficient power and the like of the screw type hydraulic oscillator, has the characteristics of high self pressure and short service lives of the movable valve block and the static valve block, consumes more energy in deep wells and ultra-deep wells, influences the use of other tools, and secondly, the surface contact type work of the movable valve block and the static valve block easily causes the rapid abrasion of the movable valve block and the static valve block, so that the service lives of the movable valve block and the static valve block are prolonged, the material properties of the movable valve block and the static valve block are improved, and the tool cost is increased.

Disclosure of Invention

The embodiment of the application provides a turbine type hydraulic oscillator, which aims to solve the problems that the turbine type hydraulic oscillator in the related art is high in self-pressure consumption and causes abrasion of a movable valve plate and a static valve plate.

To achieve the above object, embodiments of the present application provide a turbine type hydraulic oscillator, including:

a movable valve cover;

the shell is internally provided with a rotating piece, the movable valve cover is fixed at one end of the rotating piece along the rotating axis direction of the rotating piece, and the rotating piece is used for driving the movable valve cover to rotate;

the static valve plate is arranged in the shell and is positioned at one end of the movable valve cover, which is far away from the rotating piece, and an installation gap is formed between the static valve plate and the movable valve cover.

In some embodiments, the installation clearance between the static valve plate and the movable valve cover is not less than 1mm.

In some embodiments, the static valve plate is provided with a static valve plate overflow hole;

the movable valve cover is provided with a movable valve cover overflow hole, and the static valve plate overflow hole and the movable valve cover overflow hole are always provided with overlapping areas.

In some embodiments, the static plate flow-through hole comprises a first flow-through hole, and the first flow-through hole is arranged at the center of the static plate;

the movable valve cover overflow hole comprises a second overflow hole, the second overflow hole is arranged in the center of the movable valve cover, and the projection of the second overflow hole and the first overflow hole in the axial direction is overlapped.

In some embodiments, the rotating member comprises:

the rotor shaft is provided with a first step, and one end of the rotor shaft is provided with a pressing cap;

the rotor and the stator are sleeved on the rotor shaft in sequence along the radial increasing sequence of the rotor shaft, and the rotor is limited between the first step and the press cap.

In some embodiments, the rotor shaft is provided with a second step, and the second step is arranged at one end far away from the press cap along the axial direction of the rotor shaft;

the rotor shaft is sleeved with a bearing, the movable valve cover is connected with one end, far away from the pressure cap, of the rotor shaft, and the bearing is limited between the second step and the movable valve cover.

In some embodiments, an intermediate spacer is disposed between the rotor shaft and the housing, the intermediate spacer being disposed between the bearing and the rotating member.

In some embodiments, the rotor shaft is provided with a third flow-through hole.

In some embodiments, the two axial ends of the shell are respectively connected with an upper joint and a lower joint;

the upper joint is pressed and held at one end of the rotating piece far away from the movable valve cover;

the static valve plate is arranged on the static valve seat, and the lower joint is connected with the static valve seat.

In some embodiments, the lower joint includes an inner sidewall connected to the static valve seat and an outer sidewall connected to the housing.

The beneficial effects that technical scheme that this application provided brought include:

the embodiment of the application provides a turbine type hydraulic oscillator, because a rotating piece, a movable valve cover and a static valve plate are arranged in a shell, wherein the rotating piece is connected with the movable valve cover and is used for driving the movable valve cover to rotate along the axis of the rotating piece, the area of an overflow hole between the movable valve cover and the static valve plate is periodically changed, and the pressure is also periodically fluctuated along with the generation of periodic fluctuation and is transmitted into an oscillation nipple;

meanwhile, a certain installation gap is reserved between the movable valve cover and the static valve plate, when the rotating piece drives the movable valve cover to rotate, and when the superposition area of the overflow holes between the movable valve cover and the static valve plate is gradually reduced, the pressure in the oscillator is gradually increased, at the moment, a certain pressure is released through a proper axial gap between the movable valve cover and the static valve plate, so that the pressure consumption in the shell is reduced, the movable valve cover and the static valve plate are not in contact with each other, the service lives of the movable valve cover and the static valve plate are prolonged, and the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic general structural diagram of a turbine-type hydraulic oscillator according to an embodiment of the present application;

fig. 2 is a schematic diagram of an upper section structure of a turbine type hydraulic oscillator according to an embodiment of the present application;

fig. 3 is a schematic middle section structure of a turbine type hydraulic oscillator according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of a lower section structure of a turbine type hydraulic oscillator according to an embodiment of the present disclosure;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic structural view of a rotor shaft according to an embodiment of the present disclosure;

FIG. 7 is a partial enlarged view at B in FIG. 6;

FIG. 8 is a side cross-sectional view and an axial cross-sectional view of a moving valve cover provided in an embodiment of the present application;

FIG. 9 is a side cross-sectional view and an axial cross-sectional view of a static valve plate provided in an embodiment of the present application;

FIG. 10 is a schematic diagram of the superposition of the movable valve cover and the static valve plate under the limiting condition provided in the embodiment of the present application;

FIG. 11 is a schematic diagram of the superposition of the movable valve cover and the static valve plate under the first working condition provided in the embodiment of the present application;

fig. 12 is a schematic view of a hexagonal wrench according to an embodiment of the present disclosure;

FIG. 13 is a schematic view of a static valve seat provided in an embodiment of the present application;

fig. 14 is a schematic diagram of a hexagonal wrench and a static valve seat according to an embodiment of the present application.

In the figure: 1. a housing; 2. an upper joint; 3. a lower joint; 4. a static valve plate; 41. the static valve plate is provided with an overflow hole; 411. a first overflow aperture; 5. a static valve seat; 6. a movable valve cover; 61. the movable valve plate passes through the flow hole; 611. a second overflow aperture; 7. a rotating member; 71. a rotor shaft; 711. a first step; 712. a second step; 713. a third flow aperture; 72. a rotor; 73. a stator; 8. pressing the cap; 9. a bearing; 10. a mounting gap; 11. a movable sleeve is arranged; 12. a static sleeve is arranged on the upper part; 13. an intermediate spacer; 14. a lower movable sleeve; 15. a lower static sleeve; 16. a hexagonal wrench; 161. a shoulder.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

The embodiment of the application provides a turbine type hydraulic oscillator, which can solve the problems of higher self-pressure consumption and abrasion of a movable valve plate and a static valve plate of the turbine type hydraulic oscillator in the related technology.

Referring to fig. 1 to 11, the embodiment of the present application provides a turbine hydraulic oscillator, which includes a housing 1, a static valve plate 4 and a moving valve cover 6, wherein the static valve plate 4 and the moving valve cover 6 are both installed in the housing 1;

further, the casing 1 internally mounted has a rotation piece 7, and the movable valve gap 6 is fixed in the one end of rotation piece 7 along the axis direction of rotation piece 7, and rotation piece 7 is used for driving movable valve gap 6 to rotate, and the static valve plate 4 sets up in the one end that movable valve gap 6 kept away from rotation piece 7, and has installation clearance 10 between static valve plate 4 and the movable valve gap 6.

Specifically, the rotation of the rotating piece 7 drives the movable valve cover 6 to rotate, so that the overlapping area of the axial overflow holes between the movable valve cover 6 and the static valve plate 4 periodically changes from large to small, and the pressure in the oscillator periodically fluctuates as a result of the change of the overlapping area of the overflow holes;

because there is certain clearance between moving valve gap 6 and the quiet valve block 4, when the rotating member 7 drove moving valve gap 6 rotatory, when the overlapping area of overflow hole between moving valve gap 6 and quiet valve block 4 diminishes gradually, and the pressure in the oscillator increases gradually, can release certain pressure through the installation clearance 10 between moving valve gap 6 and quiet valve block 4 this moment, and then reduces the pressure consumption in the oscillator.

The embodiment of the application provides a turbine type hydraulic oscillator, because a rotating piece 7, a movable valve cover 6 and a static valve plate 4 are arranged in a shell 1, wherein the rotating piece 7 is connected with the movable valve cover 6 and is used for driving the movable valve cover 6 to rotate along the axis of the rotating piece, the area of an overflow hole between the movable valve cover 6 and the static valve plate 4 is periodically changed, and the pressure is also periodically fluctuated along with the generation of periodic fluctuation and is transmitted into an oscillation nipple;

meanwhile, a certain installation gap is reserved between the movable valve cover 6 and the static valve plate 4, when the rotating piece 7 drives the movable valve cover 6 to rotate, and when the overlapping area of the overflow holes between the movable valve cover 6 and the static valve plate 4 is gradually reduced, the pressure in the oscillator is gradually increased, at the moment, a certain pressure is released through a proper axial gap (namely an installation gap 10) between the movable valve cover 6 and the static valve plate 4, so that the pressure consumption in the shell 1 is reduced, the movable valve cover 6 and the static valve plate 4 do not contact with each other, the service life of the movable valve cover 6 and the static valve plate 4 is prolonged, and the cost is reduced, so that the problems of high self pressure consumption and abrasion of the movable valve plate and the static valve plate 4 of the turbine hydraulic oscillator in the related technology can be solved.

In some alternative embodiments, the mounting gap 10 between the stationary valve plate 4 and the movable valve cover 6 is not less than 1mm.

Specifically, if the installation gap 10 is too small, fluid cannot leak out of the installation gap, and pressure cannot be well released, so the installation gap is set to be greater than or equal to 1mm, a gap between the movable valve cover 6 and the static valve plate 4 is ensured, pressure consumption generated by the oscillator is reduced, and the movable valve cover 6 and the static valve plate 4 are not contacted with each other, so that the service lives of the movable valve cover 6 and the static valve plate 4 are prolonged.

In some alternative embodiments, as shown in fig. 8 to 11, the static valve plate 4 is provided with a static valve plate overflow hole 41, the movable valve cover 6 is provided with a movable valve cover overflow hole 61, and the static valve plate overflow hole 41 and the movable valve cover overflow hole 61 always have overlapping areas, that is, the overlapping areas between the static valve plate overflow hole 41 and the movable valve cover overflow hole 61 continuously change during the rotation of the movable valve cover 6, but always have overlapping parts, so that fluid can pass through conveniently.

Alternatively, as shown in fig. 9, the static plate overflow hole 41 includes a first overflow hole 411, and the first overflow hole 411 is opened at the center of the static plate 4; as shown in fig. 8, the moving valve cover flow hole 61 includes a second flow hole 611, and the second flow hole 611 is formed at the center of the moving valve cover 6;

further, the second overflow hole 611 coincides with the projection of the first overflow hole 411 in the axial direction.

Specifically, as shown in fig. 10 and 11, fig. 10 is a schematic diagram of overlapping the movable valve cover 6 and the static valve plate 4 under the limiting condition, at this time, the overlapping area between the static valve plate overflow hole 41 and the movable valve cover overflow hole 61 is the smallest, that is, the overlapping portion of the overflow hole between the movable valve cover 6 and the static valve plate 4 is the overlapping portion of the second overflow hole 611 and the first overflow hole 411, that is, as shown in fig. 10, at this time, when the pressure in the oscillator is the largest.

Fig. 11 is a schematic diagram of superposition of the movable valve cover 6 and the static valve plate 4 under the first working condition, at this time, the static valve plate overflow hole 41 has a superposition portion between the movable valve cover overflow holes 61, and in the superposition state, as indicated by the arrow in fig. 11, the superposition portion of the second overflow hole 611 and the first overflow hole 411 is added, and a part of the overflow holes are superposed.

When the second overflow hole 611 is completely overlapped with the first overflow hole 411, that is, the overflow hole in the movable valve cover 6 and the static valve plate 4 is completely overlapped, the pressure in the oscillator is minimum.

It should be noted that, the movable valve cover 6 and the static valve plate 4 are coaxially disposed, and the second overflow hole 611 and the first overflow hole 411 are respectively disposed at the axes of the movable valve cover 6 and the static valve plate 4, so as to ensure that the movable valve cover 6 always has a coincident area when rotating;

the second flow-through hole 611 and the first flow-through hole 411 are preferably arranged in a semicircular shape as shown in fig. 8 and 9, and when the movable valve cover 6 rotates to a limit working condition as shown in fig. 10 with the static valve plate 4, the two semicircular shapes form a complete circle together, so that fluid circulation is ensured.

In some alternative embodiments, referring to fig. 1 to 7, the rotating member 7 includes a rotor shaft 71, a rotor 72 and a stator 73 (the stator 73 does not rotate), wherein the rotor 72 and the stator 73 are sequentially sleeved on the rotor shaft 71 in an order of increasing radial direction of the rotor shaft 71 along the rotor shaft 71;

further, as shown in fig. 3 and 6, the rotor shaft 71 is provided with a first step 711, and the rotor 72 is limited on the first step 711;

further, as shown in fig. 1 and 2, a pressing cap 8 is provided at one end of the rotor shaft 71, and the pressing cap 8 is used for pressing the parts sleeved on the rotor shaft 71 and limited on the first step 711, so as to prevent the parts from rotating with each other. Optionally, the press cap 8 is threadably connected to the rotor shaft 71.

Alternatively, as shown in fig. 1 to 2, an upper moving sleeve 11 and an upper static sleeve 12 are arranged between the rotor 72 and the stator 73 and the press cap 8, and the upper moving sleeve 11 and the upper static sleeve 12 are both sleeved on the rotor shaft 71, wherein the upper moving sleeve 11 is attached to the circumferential direction of the rotor shaft 71, and the upper static sleeve 12 is sleeved on the upper moving sleeve 11 in the circumferential direction far from the rotor shaft 71.

In some alternative embodiments, as shown in fig. 3, 4 and 6, the rotor shaft 71 is provided with a second step 712, and the second step 712 is disposed at an end far from the press cap 8 along the axial direction of the rotor shaft 71;

further, as shown in fig. 1 to 4, the rotor shaft 71 is sleeved with a bearing 9, the movable valve cover 6 is connected with one end of the rotor shaft 71 far away from the press cap 8, and the bearing 9 is limited between the second step 712 and the movable valve cover 6. Specifically, as shown in fig. 4, the rotor shaft 71 is inserted into the inner cavity of the movable valve cover 6, and the rotor shaft 71 rotates and drives the movable valve cover 6 to rotate, so that the overlapping area of the overflow hole between the movable valve cover 6 and the static valve plate 4 changes periodically, and the pressure in the casing 1 also fluctuates periodically.

In some alternative embodiments, referring to fig. 1 and 3, an intermediate spacer 13 is provided between the rotor shaft 71 and the housing 1, and the intermediate spacer 13 is limited between the stator 73 and the bearing 9, so as to facilitate adjusting the axial clearance and pre-compression of the stator 73 and the rotor 72.

In some alternative embodiments, referring to fig. 1, 2 and 4, the upper joint 2 and the lower joint 3 are respectively connected to two axial ends of the housing 1, wherein the upper joint 2 is pressed against an end of the rotating member 7 away from the moving valve cover 6, so as to press the lower part into the housing 1, and prevent rotation between the parts. Optionally, the upper joint 2 is screwed with the housing 1.

Alternatively, the movable valve cover 6 is screwed with the rotor shaft 71, so as to compress the part sleeved on the rotor shaft 71 and limited on the second step 712, and prevent relative rotation.

Optionally, the lower joint 3 is in threaded connection with the shell 1, and one end of the lower joint 3 is abutted on the static valve seat 5, so that the compression effect is achieved. Further, the static valve plate 4 is installed on the static valve seat 5, and the lower joint 3 is connected with the static valve seat 5 to fix the static valve seat 5 and prevent rotation.

Optionally, as shown in fig. 4, a lower movable sleeve 14 and a lower static sleeve 15 are arranged between the bearing 9 and the movable valve cover 6, wherein the lower movable sleeve 14 is in fit and sleeved on the rotor shaft 71, and the lower static sleeve 15 is arranged on a circle of the lower movable sleeve 14 far away from the rotor shaft 71, so that force transmission is facilitated.

Alternatively, as shown in connection with fig. 4, the lower joint 3 comprises an inner side wall and an outer side wall, the inner side wall is connected with the static valve seat 5, and the outer side wall is connected with the housing 1, i.e. the lower joint 3 is limited between the static valve seat 5 and the housing 1.

Because of a certain axial clearance between the movable valve cover 6 and the static valve plate 4, most of the drilling fluid passing through the stator 73 and the rotor 72 flows out from the third overflow hole 713 at the step of the rotor shaft 71, and a small part of the drilling fluid flows out from the clearance between the movable valve cover 6 and the static valve plate 4, and the pressure inside the casing 1 is released through the clearance.

Specifically, the mounting gap 10 is realized by an assembly means. The specific implementation mode is as follows: parts arranged on the rotor shaft 71 are compressed through the press cap 8, parts in the shell 1 are compressed through the upper connector 2, the static valve plate 4 is pressed in an inner hole of the static valve seat 5 after being cold-packed, the static valve seat 5 is connected with the lower connector 3 in a threaded mode, the lower connector 3 is screwed up with the shell 1, and the end faces are attached.

Rotating the static valve seat 5 in a loose buckling mode by using a spanner until the static valve seat 5 is fixed; recording the position of the static valve seat 5 by using a marker pen, namely marking the end face of the lower joint 3 (marking the position for recording the joint between the end face of the static valve plate 4 on the static valve seat 5 and the end face of the movable valve cover 6 to be zero, and determining the rotating angle of the static valve seat 5 by taking the marking line at the position as a reference or a starting position);

and after the static valve seat 5 is rotated to a certain angle by using a spanner in a thread rotating mode (the static valve seat 5 is rotated by using the spanner, a certain axial gap is formed between the static valve seat 5 which is attached originally and the movable valve cover 6 by rotating the static valve seat 5 in the opposite direction), the axial gap is the installation gap 10 shown in fig. 5, and the rotation is stopped by controlling the rotating angle of the static valve seat 5), the spanner is removed, the lower joint 3 is removed, the static valve seat 5 and the lower joint 3 are fixed in a welding mode, and the loosening of threads of the static valve seat 5 in the working process is prevented. Specifically, the installation clearance 10 is not less than 1mm.

Optionally, the wrench passes through the inner hole of the static valve seat 5 to complete screwing and unscrewing of the static valve seat 5, wherein the cross section shape of the wrench is consistent with the inner hole shape of the static valve seat 5, that is, as shown in fig. 13, the cross section of the static valve seat 5 perpendicular to the axial direction of the wrench is regular hexagon, as shown in fig. 12, the wrench uses a hexagonal wrench 16, the matched use scenario of the hexagonal wrench 16 and the static valve seat 5 is as shown in fig. 14, and the shoulder 161 of the hexagonal wrench 16 is abutted against the end of the static valve seat 5, which is far away from the static valve plate 4, so as to support the static valve seat 5 when the static valve seat 5 is rotated.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present application and simplification of the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A turbine type hydraulic oscillator, comprising:

a movable valve cover (6);

the shell (1) is internally provided with a rotating piece (7), the movable valve cover (6) is fixed at one end of the rotating piece (7) along the rotating axis direction of the rotating piece (7), and the rotating piece (7) is used for driving the movable valve cover (6) to rotate;

the static valve plate (4) is arranged in the shell (1) and is positioned at one end of the movable valve cover (6) far away from the rotating piece (7), and an installation gap (10) is formed between the static valve plate (4) and the movable valve cover (6).

2. The turbine-type hydraulic oscillator as set forth in claim 1, wherein:

the installation clearance (10) between the static valve plate (4) and the movable valve cover (6) is not smaller than 1mm.

3. The turbine-type hydraulic oscillator as set forth in claim 1, wherein:

the static valve plate (4) is provided with a static valve plate overflow hole (41);

the movable valve cover (6) is provided with a movable valve cover overflow hole (61), and the static valve plate overflow hole (41) and the movable valve cover overflow hole (61) are always provided with an overlapped area.

4. A turbine-type hydraulic oscillator as claimed in claim 3, wherein:

the static valve plate overflow hole (41) comprises a first overflow hole (411), and the first overflow hole (411) is arranged at the center of the static valve plate (4);

the movable valve cover overflow hole (61) comprises a second overflow hole (611), the second overflow hole (611) is arranged at the center of the movable valve cover (6), and the second overflow hole (611) is overlapped with the projection of the first overflow hole (411) in the axial direction.

5. The turbine-type hydraulic oscillator according to claim 1, characterized in that the rotating member (7) comprises:

a rotor shaft (71) on which a first step (711) is provided, and one end of the rotor shaft (71) is provided with a press cap (8);

the rotor (72) and the stator (73) are sequentially sleeved on the rotor shaft (71) in the order of increasing the rotor shaft (71), and the rotor (72) is limited between the first step (711) and the press cap (8).

6. The turbine-type hydraulic oscillator as set forth in claim 5, wherein:

the rotor shaft (71) is provided with a second step (712), and the second step (712) is arranged at one end far away from the press cap (8) along the axial direction of the rotor shaft (71);

the rotor shaft (71) is sleeved with a bearing (9), the movable valve cover (6) is connected with one end, far away from the press cap (8), of the rotor shaft (71), and the bearing (9) is limited between the second step (712) and the movable valve cover (6).

7. The turbine type hydraulic oscillator as set forth in claim 6, wherein:

an intermediate spacer (13) is arranged between the rotor shaft (71) and the shell (1), and the intermediate spacer (13) is arranged between the bearing (9) and the rotating piece (7).

8. The turbine-type hydraulic oscillator as set forth in claim 5, wherein:

the rotor shaft (71) is provided with a third overflow hole (713).

9. The turbine-type hydraulic oscillator as set forth in claim 1, wherein:

the two axial ends of the shell (1) are respectively connected with an upper joint (2) and a lower joint (3);

the upper joint (2) is pressed and held at one end of the rotating piece (7) far away from the movable valve cover (6);

the static valve plate (4) is arranged on the static valve seat (5), and the lower joint (3) is connected with the static valve seat (5).

10. The turbine-type hydraulic oscillator as set forth in claim 9, wherein:

the lower joint (3) comprises an inner side wall and an outer side wall, wherein the inner side wall is connected with the static valve seat (5), and the outer side wall is connected with the shell (1).