A torsion impactor

Abstract

The torsion impactor comprises a rotating shaft, a first liquid inlet hole and a second liquid inlet hole arranged on the outer periphery of the rotating shaft, a swing seat with a swing block rotatably sleeved on the rotating shaft, a movable disc valve fixedly sleeved on the rotating shaft and used for supporting the swing seat, the movable disc valve being provided with a first liquid outlet hole and a second liquid outlet hole, and a fixed seat provided with a first liquid injection groove and a second liquid injection groove located on the two sides of the swing block respectively; when the rotating shaft rotates in a first direction, the positions of the first liquid inlet hole and the second liquid inlet hole and the positions of the first liquid outlet hole and the second liquid outlet hole change, so that one of the first liquid injection groove and the second liquid injection groove is selectively communicated with the first liquid inlet hole or the second liquid inlet hole in the axial direction and the other is selectively communicated with the first liquid outlet hole or the second liquid outlet hole in the axial direction, the swing block is reciprocatingly swung and impacted to the fixed seat by the first liquid injection groove and the second liquid injection groove alternately, the swing and impact times are relatively more, the impact frequency is relatively high, and the stability of the drill bit is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to a downhole percussion drill, in particular to a torsion impactor. BACKGROUND

[0002] In the process of drilling, when the drill bit encounters alternating soft and hard, chert containing combination and other heterogeneous formations, the drill bit often causes tooth collapse and tooth breakage due to the generation of stick-slip vibration and transverse vortex and other adverse vibrations, which affects the rotation speed and service life of the drill bit. In order to eliminate the above-mentioned adverse phenomena, through the rock breaking sensitivity analysis of the heterogeneous formation, a torsion impactor is added to the conventional rotary cutting rock breaking drill bit, and the circumferential reciprocating torsional impact load generated by the torsion impactor is used to make the drill bit cut the formation at a higher rotation speed and larger torque, thereby avoiding the induction of stick-slip vibration and transverse vortex phenomenon due to insufficient torque of the drill bit. The drill bit with the torsion impactor has been widely used in the fields of oil and gas exploration, land exploration and geothermal well development, so it is particularly necessary to optimize the structure of the torsion impactor.

[0003] The existing torsion impactor still has some deficiencies, which causes the impact frequency of the existing torsion impactor to be low and the stability to be poor. Therefore, how to design a torsion impactor with high impact frequency and good stability is a technical problem to be solved by the person skilled in the art. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a torsion impactor, which reciprocatingly swings four times per rotation of the rotating shaft, generates four swing impacts, and has a higher impact frequency and is more stable in operation.

[0005] The specific scheme is as follows:

[0006] The torsion impactor provided by the present application comprises:

[0007] A rotating shaft with a first liquid inlet hole and a second liquid inlet hole on the outer periphery;

[0008] A swing seat rotatably sleeved on the rotating shaft and having a swing block;

[0009] A movable disc valve fixedly sleeved on the rotating shaft and used to support the swing seat; the movable disc valve is provided with a first liquid outlet hole and a second liquid outlet hole;

[0010] A fixed seat fixed in position and sleeved on the outer periphery of the swing seat, the fixed seat having a first liquid injection groove and a second liquid injection groove located on the two sides of the swing block, respectively;

[0011] When the rotating shaft rotates in the first direction, one of the first liquid injection groove and the second liquid injection groove is in communication with the first liquid inlet hole or the second liquid inlet hole in the axial direction and the other is in communication with the first liquid outlet hole or the second liquid outlet hole in the axial direction, so as to alternately push the swing block to reciprocatingly swing and impact the fixed seat by regularly switching the liquid flow channel.

[0012] Preferably, the fixed seat has a swing cavity for accommodating the swing block, and the first liquid injection groove and the second liquid injection groove are respectively connected with two sides of the swing cavity;

[0013] When the rotating shaft rotates to the first position along the first direction, liquid flows into the swing cavity from the first liquid injection groove, and the liquid drives the swing block to swing forward to press the liquid in the swing cavity into the second liquid injection groove and then out through the second liquid outlet hole;

[0014] When the rotating shaft rotates to the second position along the first direction, liquid flows into the swing cavity from the second liquid injection groove, and the liquid drives the swing block to swing reversely to press the liquid in the swing cavity into the first liquid injection groove and then out through the second liquid outlet hole;

[0015] When the rotating shaft rotates to the third position along the first direction, liquid flows into the swing cavity from the second liquid injection groove, and the liquid drives the swing block to swing forward to press the liquid in the swing cavity into the second liquid injection groove and then out through the first liquid outlet hole;

[0016] When the rotating shaft rotates to the fourth position along the first direction, liquid flows into the swing cavity from the first liquid injection groove, and the liquid drives the swing block to swing reversely to press the liquid in the swing cavity into the first liquid injection groove and then out through the first liquid outlet hole.

[0017] Preferably, the fixed seat has an accommodating groove for accommodating the swing seat and connected with the swing cavity, the groove bottom of the accommodating groove is provided with a first flow hole and a second flow hole respectively connected with the first liquid injection groove and the second liquid injection groove, and the accommodating groove further comprises a static disc valve fixedly arranged at the groove opening of the accommodating groove and abutting against the swing seat for axially limiting the swing seat, and the static disc valve is provided with a first flow hole and a second flow hole respectively connected with the first liquid injection groove and the second liquid injection groove.

[0018] Preferably, the fixed seat further comprises a locking sleeve detachably fixedly arranged at the end of the rotating shaft and abutting against the dynamic disc valve for axially limiting the dynamic disc valve.

[0019] Preferably, the fixed seat further comprises:

[0020] A impeller coaxially fixed to the end of the rotating shaft away from the locking sleeve;

[0021] A flow guide cover sleeved on the outer periphery of the impeller, and the side surface of the flow guide cover is provided with a plurality of flow guide holes, and the liquid sprayed from the flow guide holes drives the impeller to drive the rotating shaft to synchronously rotate relative to the flow guide cover.

[0022] Preferably, the radial trend of any flow guide hole is tangent to the rotation direction of the impeller.

[0023] Preferably, any blade of the impeller extends along the axial direction, and the axial trend of any flow guide hole is parallel to the center line of the flow guide cover.

[0024] Preferably, any blade of the impeller is helical, and any guide hole is helical in axial direction.

[0025] Preferably, the application further comprises:

[0026] A support sleeve fixedly connected with the shroud and used for supporting the shroud;

[0027] An upper shell and a lower shell respectively detachably fixed at two ends of the support sleeve;

[0028] An upper joint detachably fixed to the upper shell;

[0029] A lower joint located in the lower shell and fixedly connected with the fixed seat.

[0030] Preferably, a limiting assembly for axially limiting the lower joint and the lower shell is arranged between the lower joint and the lower shell, and the limiting assembly comprises:

[0031] A first half-ring groove and a second half-ring groove respectively arranged at opposite sides of the lower joint and the lower shell,

[0032] A limiting bead mounted in a ring-shaped recess formed by the first half-ring groove and the second half-ring groove, the lower shell is provided with a loading port in communication with the ring-shaped recess and used for loading the limiting bead, and a blocking plug is detachably mounted in the loading port.

[0033] Compared with the prior art, the provided torsion impactor comprises a rotating shaft, a moving disc valve, a fixed seat and a swing seat. The rotating shaft changes the positions of a first liquid inlet hole and a second liquid inlet hole by rotation. The swing seat is rotatably sleeved on the rotating shaft and has a swing block. The moving disc valve is fixedly sleeved on the rotating shaft and rotates synchronously with the rotating shaft, and the moving disc valve changes the positions of a first liquid outlet hole and a second liquid outlet hole arranged thereon by rotation. The fixed seat is fixed in position and is sleeved on the outer periphery of the swing seat, and the fixed seat has a first liquid injection groove and a second liquid injection groove respectively located at two sides of the swing seat.

[0034] When the rotating shaft rotates in a first direction, the positions of the first liquid inlet hole and the second liquid inlet hole and the positions of the first liquid outlet hole and the second liquid outlet hole change, so that one of the first liquid injection groove and the second liquid injection groove is in communication with the first liquid inlet hole or the second liquid inlet hole in the axial direction and the other is in communication with the first liquid outlet hole or the second liquid outlet hole in the axial direction, thereby regularly switching the liquid flow channel, so that the first liquid injection groove and the second liquid injection groove alternately push the swing block to reciprocatingly swing and impact the fixed seat, the number of swing impacts is relatively large, the impact frequency is high, the drill bit has a large torque, the risk of stick-slip vibration and lateral whirl of the drill bit is reduced, and the stability of the drill bit is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and for those skilled in the field, other drawings can be obtained based on the provided drawings without any creative effort.

[0036] Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0037] Figure 2 A sectional view of the torsion impactor provided by the embodiments of the present application; Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0038] Figure 3 A sectional view of the torsion impactor provided by the embodiments of the present application; Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0039] Figure 4 A sectional view of the torsion impactor provided by the embodiments of the present application; Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0040] Figure 5 A sectional view of the torsion impactor provided by the embodiments of the present application; Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0041] Figure 6 A sectional view of the torsion impactor provided by the embodiments of the present application; Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0042] Figure 7 A sectional view of the torsion impactor provided by the embodiments of the present application; Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0043] Figure 8 A sectional view of the torsion impactor provided by the embodiments of the present application; Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0044] Figure 9 A sectional view of the torsion impactor provided by the embodiments of the present application; Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0045] Figure 10 A sectional view of the torsion impactor provided by the embodiments of the present application; Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0046] Figure 11 A sectional view of the torsion impactor provided by the embodiments of the present application; Figure 1 A sectional view of the torsion impactor provided by the embodiments of the present application;

[0047] Figure 12 Another sectional view of the impeller;

[0048] Figure 13 Another sectional view of the impeller.

[0049] The reference signs are as follows:

[0050] Upper joint 1, support bearing 2, upper shell 3, fairing 4, impeller 5, support sleeve 6, rotating shaft 7, static disc valve 8, lower shell 9, swing seat 10, fixed seat 11, moving disc valve 12, locking sleeve 13, plugging plug 14, limit bead 15, lower joint 16, flow guide hole 17, radial flow distribution hole 18, first liquid inlet hole 19, second liquid inlet hole 20, first drainage hole 21, second drainage hole 22, first liquid injection groove 23, second liquid injection groove 24, swing cavity 25, blade 26, first overflow hole 27, second overflow hole 28, first liquid outlet hole 29, second liquid outlet hole 30, axial flow distribution hole 31 and liquid guide disc 32. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0052] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0053] Please refer to Figures 1 to 9 , Figure 1 the cross-sectional view of the torsion impactor provided by the embodiments of the present application; Figure 2 the A-A cross-sectional view in Figure 1 the B-B cross-sectional view in Figure 3 the C-C cross-sectional view in Figure 1 the D-D cross-sectional view in Figure 4 the E-E cross-sectional view in Figure 1 the F-F cross-sectional view in Figure 5 the G-G cross-sectional view in Figure 1 the structure diagram of the rotating shaft in Figure 6 the E-E cross-sectional view in Figure 1 the F-F cross-sectional view in Figure 7 the G-G cross-sectional view in Figure 1 the H-H cross-sectional view in Figure 8 the I-I cross-sectional view in Figure 1 the J-J cross-sectional view in Figure 9 the K-K cross-sectional view in Figure 1 the structure diagram of the rotating shaft in

[0054] The embodiments of the present application disclose a torsion impactor, which comprises a rotating shaft 7, a moving disc valve 12, a fixed seat 11 and a swing seat 10.

[0055] The rotating shaft 7 can rotate around its center line, and the rotating shaft 7 is provided with a first liquid inlet hole 19 and a second liquid inlet hole 20 on the outer periphery, and the rotating shaft 7 changes the positions of the first liquid inlet hole 19 and the second liquid inlet hole 20 by rotating.

[0056] The swing seat 10 is rotatably sleeved on the rotating shaft 7, and the swing seat 10 has a swing block.

[0057] The movable disc valve 12 is fixedly sleeved on the rotating shaft 7, so that the movable disc valve 12 rotates synchronously with the rotating shaft 7. The movable disc valve 12 is used for supporting the swing seat 10. Figure 1 For example, the current view is taken, the movable disc valve 12 is fixed on the bottom end of the rotating shaft 7. Specifically, the bottom end of the rotating shaft 7 is fixedly connected with the center of the movable disc valve 12 through interference connection, the bottom end of the rotating shaft 7 is provided with a regular hexagonal limiting surface, and the center of the movable disc valve 12 is provided with a regular hexagonal limiting groove, so as to limit the circumferential rotation of the movable disc valve 12 relative to the rotating shaft 7. The movable disc valve 12 is provided with a first liquid outlet hole 29 and a second liquid outlet hole 30, and the movable disc valve 12 can change the positions of the first liquid outlet hole 29 and the second liquid outlet hole 30 by rotating.

[0058] The position of the fixed seat 11 is fixed, that is, the fixed seat 11 does not rotate with the rotating shaft 7. The fixed seat 11 has a first liquid injection groove 23 and a second liquid injection groove 24 located on both sides of the swing seat respectively.

[0059] When the rotating shaft 7 rotates in the first direction, the positions of the first liquid inlet hole 19 and the second liquid inlet hole 20 and the positions of the first liquid outlet hole 29 and the second liquid outlet hole 30 change, so that one of the first liquid injection groove 23 and the second liquid injection groove 24 is connected with the first liquid inlet hole 19 and the second liquid inlet hole 20 in the axial direction and the other is connected with the first liquid outlet hole 29 and the second liquid outlet hole 30 in the axial direction, thereby regularly switching the liquid flow channel, so that the first liquid injection groove 23 and the second liquid injection groove 24 alternately push the swing block to reciprocatingly swing and impact the fixed seat 11.

[0060] As shown above, when the rotating shaft 7 in the torsional impact device provided by the application continuously rotates in one direction, the swing block alternately pushes the swing block to reciprocatingly swing and impact the fixed seat 11 under the action of the first liquid injection groove 23 or the second liquid injection groove 24, so that the swing block can swing and impact multiple times in the process of one rotation of the rotating shaft 7, the number of swing impacts increases, the impact frequency is higher, the drill bit has a larger torque, the risk of stick-slip vibration and lateral vortex of the drill bit is reduced, and the stability of the drill bit is ensured.

[0061] The outer periphery of the rotating shaft 7 has a liquid guide disc 32, the liquid guide disc 32 is integrally connected with the rotating shaft 7, of course, the liquid guide disc 32 can also be fixed on the outer periphery of the rotating shaft 7 through interference connection. The outer side surface of the rotating shaft 7 and the liquid guide disc 32 is cylindrical, and the outer diameter of the liquid guide disc 32 is greater than the outer diameter of the rotating shaft 7.

[0062] The liquid guide plate 32 is provided with a first liquid inlet hole 19 and a second liquid inlet hole 20. The rotating shaft 7 drives the liquid guide plate 32 to rotate synchronously, and the rotation of the liquid guide plate 32 changes the positions of the first liquid inlet hole 19 and the second liquid inlet hole 20. Both the first liquid inlet hole 19 and the second liquid inlet hole 20 are arc-shaped holes penetrating along the thickness direction of the liquid guide plate 32, but are not limited to arc-shaped holes. It is worth noting that the first liquid inlet hole 19 and the second liquid inlet hole 20 are centrally symmetrical. (See attached image.) Figure 3 For example, assuming that the center lines of two perpendicularly intersecting lines are the X-axis and the Y-axis respectively, in the initial state, the first liquid inlet 19 is located in the fourth quadrant and the second liquid inlet 20 is located in the second quadrant.

[0063] Both the first outlet hole 29 and the second outlet hole 30 are arc-shaped holes that penetrate along the thickness direction of the moving disc valve 12, but are not limited to arc-shaped holes. It should be noted that the first outlet hole 29 and the second outlet hole 30 are also centrally symmetrical, in order to... Figure 7 For example, in the initial state, the first liquid outlet 29 is located in the first quadrant, and the second liquid outlet 30 is located in the third quadrant.

[0064] A fixed base 11 is located between the liquid guide plate 32 and the moving plate valve 12. The fixed base 11 has a swing chamber 25 and a first injection groove 23 and a second injection groove 24 respectively connected to both sides of the swing chamber 25. (See attached...) Figure 5 For example, the swing cavity 25 is a fan-shaped cavity, and the first injection groove 23 and the second injection groove 24 are both arc grooves, but not limited to arc grooves. The first injection groove 23 and the second injection groove 24 are respectively located on both sides of the swing cavity 25. It should be noted that the first injection groove 23 and the second injection groove 24 can be set at 90 degrees, the first injection groove 23 can be located in the fourth quadrant, and the second injection groove 24 can be located in the third quadrant.

[0065] The swing seat 10 is located inside the fixed seat 11, meaning that the fixed seat 11, the swing seat 10, and the rotating shaft 7 are nested sequentially from the outside in. The swing seat 10 has a swing block that can swing within the swing cavity 25. Specifically, the swing block is a fan-shaped block, but its cross-sectional area is smaller than that of the swing cavity 25, so that the swing cavity 25 provides sufficient swing space for the swing block.

[0066] When the rotating shaft 7 rotates to the first position along the first direction, the liquid guide plate 32 and the moving plate valve 12 rotate synchronously relative to the fixed seat 11 until the first liquid inlet 19 is aligned with the first liquid injection tank 23 and the second liquid injection tank 24 is aligned with the second liquid outlet 30. The liquid flows into the first liquid injection tank 23 from the first liquid inlet 19, and then into the swing chamber 25 from the first liquid injection tank 23. The liquid pushes the swing block to swing forward in the swing chamber 25 so that the swing block impacts the fixed seat 11. When the swing block swings, it pushes the liquid in the swing chamber 25 into the second liquid injection tank 24. The liquid then flows into the second liquid outlet 30 from the second liquid injection tank 24, and finally is discharged from the second liquid outlet 30.

[0067] When the rotating shaft 7 continues to rotate to the second position in the first direction, the second liquid inlet hole 20 is aligned with the second liquid injection groove 24 and the first liquid injection groove 23 is aligned with the second liquid outlet hole 30. Liquid flows into the second liquid injection groove 24 from the second liquid inlet hole 20, and then is injected into the swing cavity 25 from the second liquid injection groove 24. The liquid pushes the swing block to swing in the swing cavity 25 in the reverse direction so that the swing block impacts the fixed seat 11. When the swing block swings, the liquid in the swing cavity 25 is pressed into the first liquid injection groove 23. The liquid then flows into the second liquid outlet hole 30 from the first liquid injection groove 23, and finally is discharged from the second liquid outlet hole 30.

[0068] When the rotating shaft 7 continues to rotate to the second position in the first direction, the second liquid inlet hole 20 is aligned with the second liquid injection groove 24 and the first liquid injection groove 23 is aligned with the second liquid outlet hole 30. Liquid flows into the second liquid injection groove 24 from the second liquid inlet hole 20, and then is injected into the swing cavity 25 from the second liquid injection groove 24. The liquid pushes the swing block to swing in the swing cavity 25 in the reverse direction so that the swing block impacts the fixed seat 11. When the swing block swings, the liquid in the swing cavity 25 is pressed into the first liquid injection groove 23. The liquid then flows into the second liquid outlet hole 30 from the first liquid injection groove 23, and finally is discharged from the second liquid outlet hole 30.

[0069] When the rotating shaft 7 continues to rotate to the second position in the first direction, the second liquid inlet hole 20 is aligned with the second liquid injection groove 24 and the first liquid injection groove 23 is aligned with the second liquid outlet hole 30. Liquid flows into the second liquid injection groove 24 from the second liquid inlet hole 20, and then is injected into the swing cavity 25 from the second liquid injection groove 24. The liquid pushes the swing block to swing in the swing cavity 25 in the reverse direction so that the swing block impacts the fixed seat 11. When the swing block swings, the liquid in the swing cavity 25 is pressed into the first liquid injection groove 23. The liquid then flows into the second liquid outlet hole 30 from the first liquid injection groove 23, and finally is discharged from the second liquid outlet hole 30.

[0070] The first direction can be the clockwise direction. The position of the rotating shaft 7 after rotating 90 degrees clockwise from the starting position is the first position. The position of the rotating shaft 7 after rotating 90 degrees clockwise from the first position is the second position. The position of the rotating shaft 7 after rotating 90 degrees clockwise from the second position is the third position. The position of the rotating shaft 7 after rotating 90 degrees clockwise from the third position is the fourth position. Of course, the first direction can be the counterclockwise direction.

[0071] In addition, the forward swing of the swing block specifically refers to the clockwise swing of the swing block around the rotating shaft 7. The reverse swing of the swing block specifically refers to the counterclockwise swing of the swing block around the rotating shaft 7.

[0072] The fixed seat 11 is provided with a containing groove for containing the swing seat 10, and the containing groove is communicated with the swing cavity 25. The containing groove is a cylindrical groove. The groove bottom of the containing groove is provided with a first flow hole 27 and a second flow hole 28 corresponding to the first liquid injection groove 23 and the second liquid injection groove 24, that is, the first liquid injection groove 23 is communicated with the first flow hole 27 along the axial direction, and the second liquid injection groove 24 is communicated with the second flow hole 28 along the axial direction. The first flow hole 27 and the second flow hole 28 are both axial through circular arc holes. The symmetry center line of the first flow hole 27 is perpendicular to the symmetry center line of the second flow hole 28. For example, the first flow hole 27 is arranged in the fourth quadrant, and the second flow hole 28 is arranged in the third quadrant. Figure 6 In addition, the bottom end of the fixed seat 11 is provided with a mounting groove for containing the moving disc valve 12, and the inner wall of the mounting groove is in abutment with the outer periphery of the moving disc valve 12.

[0073] The application also comprises a static disc valve 8 fixed in the containing groove, and the static disc valve 8 is in abutment with the end of the swing seat 10, so that the static disc valve 8 cooperates with the containing groove to limit the swing seat 10 in the axial direction. The outer periphery of the static disc valve 8 is in engagement with the engagement teeth and the engagement groove of the groove side of the containing groove. The outer periphery of the static disc valve 8 is integrally provided with four circular arc engagement teeth arranged in a cross shape, and the groove side of the containing groove is correspondingly provided with four circular arc engagement grooves arranged in a cross shape. Of course, the arrangement of the engagement teeth and the engagement groove is interchangeable and does not affect the purpose of the application.

[0074] In order to facilitate the flow of liquid into the fixed seat 11, the static disc valve 8 is provided with a first drainage hole 21 and a second drainage hole 22 corresponding to the first liquid injection groove 23 and the second liquid injection groove 24, that is, the first liquid injection groove 23 is communicated with the first drainage hole 21 along the axial direction, and the second liquid injection groove 24 is communicated with the second drainage hole 22 along the axial direction. The first drainage hole 21 and the second drainage hole 22 are both circular arc holes penetrating along the thickness direction of the static disc valve 8. The symmetry center line of the first drainage hole 21 is perpendicular to the symmetry center line of the second drainage hole 22. For example, the first drainage hole 21 is arranged in the fourth quadrant, and the second drainage hole 22 is arranged in the third quadrant. Figure 4

[0075] The application also comprises a locking sleeve 13 detachably fixed at the bottom end of the rotating shaft 7, and the locking sleeve 13 is in abutment with the end surface of the moving disc valve 12, so as to limit the moving disc valve 12 to move in the axial direction in cooperation with the groove bottom of the fixed groove. The locking sleeve 13 and the rotating shaft 7 are connected by threads, but are not limited thereto.

[0076] The application also comprises an impeller 5 and a flow guide cover 4, and the impeller 5 is coaxially fixed to the end of the rotating shaft 7 away from the locking sleeve 13. Figure 1 For example, the impeller 5 is threadedly connected with the top of the rotating shaft 7.

[0077] ​The flow guide cover 4 is sleeved on the outer periphery of the impeller 5, and the side surface of the flow guide cover 4 is provided with a plurality of flow guide holes 17. The liquid sprayed from the flow guide holes 17 can drive the impeller 5 to rotate, so that the impeller 5 drives the rotating shaft 7 to rotate synchronously relative to the flow guide cover 4. In order to support the rotation of the impeller 5, a support bearing 2 is arranged between the impeller 5 and the flow guide cover 4. The type of the support bearing 2 can be set according to the actual working condition, and is not specifically limited here.

[0078] In order to drive the impeller 5 to rotate, the radial trend of any flow guide hole 17 is tangent to the rotation direction of the impeller 5, so that the liquid sprayed from the flow guide hole 17 pushes the impeller 5 to rotate. As shown in Figure 2 In order to, the outer periphery of the flow guide cover 4 is specifically provided with six flow guide holes 17 which are uniformly distributed in the form of a circular ring, but the number of flow guide holes 17 is not limited thereto.

[0079] Please refer to Figure 10 and Figure 11 , Figure 10 In order to Figure 1 the structure diagram of the impeller; Figure 11 In order to Figure 1 the structure diagram of the flow guide cover.

[0080] As shown in Figure 2 and Figure 10 , the impeller 5 is provided with six blades 26, and each blade 26 is parallel to the central axis of the impeller 5, that is, extends along the axial direction of the impeller 5. Correspondingly, as shown in Figure 11 , the axial trend of any flow guide hole 17 is parallel to the center line of the flow guide cover 4.

[0081] Please refer to Figure 12 and Figure 13 , Figure 12 another structure diagram of the impeller; Figure 13 another structure diagram of the flow guide cover.

[0082] Of course, any blade 26 of the impeller 5 can also be spiral, as shown in Figure 12 . Correspondingly, the axial trend of any flow guide hole 17 is spiral, and the liquid sprayed from the flow guide hole 17 can still push the impeller 5 to rotate, as shown in Figure 13 .

[0083] In this specific embodiment, the rotating shaft 7 is provided with a plurality of radial flow holes 18 and an axial flow hole 31 connected with all the radial flow holes 18. The bottom end of the axial flow hole 31 is connected with the center hole of the locking sleeve 13, so that the liquid flowing from the radial flow holes 18 flows through the axial flow hole 31 and then is discharged from the center hole. All the radial flow holes 18 are uniformly distributed in the form of a circular ring.

[0084] To make the liquid most possible flow into the axial shunt hole 31, the central axis of any radial shunt hole 18 is inclined to the central axis of the axial shunt hole 31, and the opening of any radial shunt hole 18 is upward. With the help of the Figure 9 For example, any radial shunt hole 18 is inclined to the circular through hole along the wall thickness direction of the rotating shaft 7.

[0085] The present application also includes a support sleeve 6, an upper shell 3, a lower shell 9, an upper joint 1 and a lower joint 16. The support sleeve 6 is fixedly connected with the fairing 4 and is used for supporting the fairing 4. The bottom end of the fairing 4 is threadedly connected with the inner wall of the support sleeve 6.

[0086] The upper shell 3 and the lower shell 9 are respectively detachably fixed at both ends of the support sleeve 6. The outer periphery of the top end of the support sleeve 6 is threadedly connected with the inner wall of the bottom end of the upper shell 3, and the outer periphery of the bottom end of the support sleeve 6 is threadedly connected with the inner wall of the top end of the lower shell 9. The cross sections of the upper shell 3, the support sleeve 6 and the lower shell 9 are all circular annular.

[0087] The upper joint 1 is detachably fixed to the upper shell 3. The upper joint 1 is threadedly connected with the top end of the upper shell 3. The center of the upper joint 1 is provided with a liquid inlet hole.

[0088] The lower joint 16 is located in the lower shell 9, and the lower joint 16 is fixedly connected with the fixed seat 11. The lower joint 16 is threadedly connected with the bottom end of the fixed seat 11. The center of the lower joint 16 is provided with a liquid outlet hole.

[0089] The lower joint 16 and the lower shell 9 are connected by means of a toothed connection. The contact end faces of the lower joint 16 and the lower shell 9 are both provided with a plurality of limiting teeth and limiting teeth. The limiting teeth and the limiting teeth are engaged with each other, which can limit the circumferential rotation of the lower joint 16 relative to the lower shell 9.

[0090] Further, the lower joint 16 and the lower shell 9 are provided with a limiting assembly. The limiting assembly is used to axially connect the lower joint 16 and the lower shell 9. The limiting assembly includes a first half ring groove and a second half ring groove respectively arranged on the opposite sides of the lower joint 16 and the lower shell 9. The first half ring groove is specifically an annular groove arranged on the outer periphery of the lower joint 16 and having a horizontal surface in the shape of a semicircle. The second half ring groove is specifically an annular groove arranged on the inner wall of the lower shell 9 and having a horizontal surface in the shape of a semicircle. The limiting assembly further includes a limiting bead 15 installed in the annular groove formed by the combination of the first half ring groove and the second half ring groove. The limiting bead 15 is specifically a spherical steel bead. In order to facilitate the installation of the limiting bead 15, the lower shell 9 is provided with an installation opening in communication with the annular groove, which facilitates the installation of the limiting bead 15 from the installation opening. The inner diameter of the installation opening is equal to the outer diameter of the limiting bead 15. In order to prevent the limiting bead 15 from leaking, the installation opening is detachably provided with a plugging plug 14. The installation opening is threadedly connected with the plugging plug 14.

[0091] The working principle of the torsional impactor provided by the present application is as follows:

[0092] Liquid flows into the upper casing 3 from the upper joint 1, and flows into the flow guide cover 4 through the flow guide hole 17, and pushes the impeller 5 to rotate, and the rotating shaft 7 rotates synchronously, and the rotating shaft 7 drives the flow guide disc 32 and the moving disc valve 12 to rotate synchronously relative to the fixed seat 11;

[0093] The liquid flowing out of the upper casing 3 flows into the axial flow hole 31 through the radial flow hole 18 of the rotating shaft 7, and then flows into the central hole of the locking sleeve 13, and finally flows out through the lower joint 16;

[0094] The liquid flowing out of the upper casing 3 is branched by the flow guide disc 32;

[0095] When the rotating shaft 7 rotates 90 degrees clockwise, the liquid flows into the first liquid injection groove 23 through the first liquid inlet hole 19 and the first flow guide hole 21, and then flows into the swing cavity 25, and pushes the swing block to swing forward in the swing cavity 25, and the swing block impacts the fixed seat 11 forwardly, and the swing block pushes the liquid in the swing cavity 25 into the second liquid injection groove 24, and then the liquid flows out of the second liquid injection groove 24 and flows into the second liquid outlet hole 30 through the second flow hole 28, and finally flows out from the second liquid outlet hole 30;

[0096] When the rotating shaft 7 continues to rotate 90 degrees clockwise, the liquid flows into the second liquid injection groove 24 through the second liquid inlet hole 20 and the second flow guide hole 22, and then flows into the swing cavity 25, and pushes the swing block to swing reversely in the swing cavity 25, and the swing block impacts the fixed seat 11 reversely, and the swing block pushes the liquid in the swing cavity 25 into the first liquid injection groove 23, and then the liquid flows out of the first liquid injection groove 23 and flows into the second liquid outlet hole 30 through the first flow hole 27, and finally flows out from the second liquid outlet hole 30;

[0097] When the rotating shaft 7 continues to rotate 90 degrees clockwise, the liquid flows into the first liquid injection groove 23 through the first liquid inlet hole 19 and the second flow guide hole 22, and then flows into the swing cavity 25, and pushes the swing block to swing forward in the swing cavity 25, and the swing block impacts the fixed seat 11 forwardly, and the swing block pushes the liquid in the swing cavity 25 into the second liquid injection groove 24, and then the liquid flows out of the second liquid injection groove 24 and flows into the first liquid outlet hole 29 through the second flow hole 28, and finally flows out from the first liquid outlet hole 29;

[0098] When the rotating shaft 7 continues to rotate 90 degrees clockwise, the liquid flows into the second liquid injection groove 24 through the first liquid inlet hole 19 and the second flow guide hole 22, and then flows into the swing cavity 25, and pushes the swing block to swing reversely in the swing cavity 25, and the swing block impacts the fixed seat 11 reversely, and the swing block pushes the liquid in the swing cavity 25 into the first liquid injection groove 23, and then the liquid flows out of the first liquid injection groove 23 and flows into the first liquid outlet hole 29 through the first flow hole 27, and finally flows out from the first liquid outlet hole 29.

[0099] Thus, the oscillating block reciprocates four times for each rotation of the rotating shaft 7, and four oscillation impacts are generated.

[0100] The above description of disclosed embodiments enables one of ordinary skill in the art to make and use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can 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

1. A torsion impactor characterized by, The utility model relates to a kind of liquid injection devices, including: Rotary shaft (7) with first liquid inlet hole (19) and second liquid inlet hole (20) in periphery; Swing seat (10) rotatably sleeved on the rotary shaft (7) and having swing block; Dynamic disc valve (12) is fixedly sleeved on the rotary shaft (7) and used to support the swing seat (10);The dynamic disc valve (12) is provided with first liquid outlet hole (29) and second liquid outlet hole (30); Position fixed and sleeved on the periphery of the swing seat (10) Fixed seat (11), the fixed seat (11) has first liquid injection groove (23) and second liquid injection groove (24) respectively located at both sides of the swing block; When the rotary shaft (7) rotates along the first direction, one of the first liquid injection groove (23) and the second liquid injection groove (24) is connected with the first liquid inlet hole (19) or the second liquid inlet hole (20) in axial direction alternatively, and the other is connected with the first liquid outlet hole (29) or the second liquid outlet hole (30) in axial direction alternatively, so that the first liquid injection groove (23) and the second liquid injection groove (24) alternately push the swing block to reciprocating swing impact the fixed seat (11) by regularly switching liquid flow channel; The fixed seat (11) has swing cavity (25) containing the swing block, and the first liquid injection groove (23) and the second liquid injection groove (24) are respectively connected with both sides of the swing cavity (25); The swing cavity (25) is a fan-arc-shaped cavity, and the swing block is a fan-arc-shaped block, and the cross-sectional area of the swing block is smaller than the cross-sectional area of the swing cavity (25).

2. The torsion impactor of claim 1, wherein When the rotary shaft (7) rotates to the first position along the first direction, liquid flows into the first liquid injection groove (23) from the first liquid inlet hole (19), and then injects into the swing cavity (25), and the liquid drives the swing block to swing forward to press the liquid in the swing cavity (25) into the second liquid injection groove (24), and then discharges through the second liquid outlet hole (30); When the rotary shaft (7) rotates to the second position along the first direction, liquid flows into the second liquid injection groove (24) from the second liquid inlet hole (20), and then injects into the swing cavity (25), and the liquid drives the swing block to swing reversely to press the liquid in the swing cavity (25) into the first liquid injection groove (23), and then discharges through the second liquid outlet hole (30); When the rotary shaft (7) rotates to the third position along the first direction, liquid flows into the first liquid injection groove (23) from the second liquid inlet hole (20), and then injects into the swing cavity (25), and the liquid drives the swing block to swing forward to press the liquid in the swing cavity (25) into the second liquid injection groove (24), and then discharges through the first liquid outlet hole (29); When the rotary shaft (7) rotates to the fourth position along the first direction, liquid flows into the second liquid injection groove (24) from the first liquid inlet hole (19), and then injects into the swing cavity (25), and the liquid drives the swing block to swing reversely to press the liquid in the swing cavity (25) into the first liquid injection groove (23), and then discharges through the first liquid outlet hole (29).

3. The torsion impactor of claim 2, wherein, The fixed seat (11) has a containing groove for containing the swing seat (10) and communicating with the swing cavity (25), the groove bottom of the containing groove is provided with a first flow hole (27) and a second flow hole (28) corresponding to the first liquid injection groove (23) and the second liquid injection groove (24) respectively, and a static disc valve (8) is further arranged on the containing groove opening and abuts against the swing seat (10) to axially limit the swing seat (10), and the static disc valve (8) is provided with a first flow hole (21) and a second flow hole (22) corresponding to the first liquid injection groove (23) and the second liquid injection groove (24) respectively.

4. The torsion impactor of claim 2, wherein, A locking sleeve (13) is further arranged on the end of the rotating shaft (7) and abuts against the dynamic disc valve (12) to axially limit the dynamic disc valve (12).

5. The torsion impactor of claim 4, wherein, Further comprising: A impeller (5) coaxially fixed to the end of the rotating shaft (7) away from the locking sleeve (13); A flow guide cover (4) sleeved on the outer periphery of the impeller (5), the side surface of the flow guide cover (4) is provided with a plurality of flow guide holes (17), and the liquid sprayed from the flow guide holes (17) drives the impeller (5) to drive the rotating shaft (7) to rotate synchronously relative to the flow guide cover (4).

6. The torsion impactor of claim 5, wherein, The radial trend of any one of the flow guide holes (17) is tangent to the rotation direction of the impeller (5).

7. The torsion impactor of claim 6, wherein, Any one of the blades (26) of the impeller (5) extends in the axial direction, and the axial trend of any one of the flow guide holes (17) is parallel to the center line of the flow guide cover (4).

8. The torsion impactor of claim 6, wherein, Any one of the blades (26) of the impeller (5) is helical, and the axial trend of any one of the flow guide holes (17) is helical.

9. The torsion impactor of any one of claims 5 to 8, wherein, Further comprising: A support sleeve (6) fixedly connected with the flow guide cover (4) and used for supporting the flow guide cover (4); An upper housing (3) and a lower housing (9) respectively detachably fixed to the two ends of the support sleeve (6); An upper connector (1) detachably fixed to the upper housing (3); A lower connector (16) located in the lower housing (9) and fixedly connected with the fixed seat (11).

10. The torsion impactor of claim 9, wherein, A limiting assembly for axially limiting the lower connector (16) and the lower housing (9) is arranged between the lower connector (16) and the lower housing (9), and the limiting assembly comprises: A first half-ring groove and a second half-ring groove respectively arranged on the opposite sides of the lower connector (16) and the lower housing (9), A limiting bead (15) installed in the annular groove formed by the combination of the first half-ring groove and the second half-ring groove, the lower housing (9) is provided with a loading port in communication with the annular groove and used for loading the limiting bead (15), and a blocking plug (14) is detachably installed in the loading port.

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