Rotary drilling tools and rotary drilling rigs

Abstract

The present invention discloses a rotary drilling tool and a rotary drilling rig, and relates to the field of drilling technology. The rotary drilling tool comprises a drill bucket, a connecting column and a vibration mechanism, the two ends of the drill bucket are respectively a drilling end and a driving end, the drilling end is used to drill into the formation, the connecting column is connected to the driving end and is used to connect with the drill rod, the vibration mechanism is connected to the driving end, and can apply an impact force along a first direction to the driving end, wherein the first direction is colinear with the axis of the drill bucket and is toward the direction of the drilling end. The rotary drilling tool and the rotary drilling rig have the characteristics of being able to generate vibration impact during drilling operations and having a high rock penetration efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling, in particular to a rotary drilling tool and a rotary drilling rig. Background Art

[0002] A rotary drilling rig, also known as a rotary drilling rig or a pile driver, is a comprehensive drilling rig that can be used in a variety of strata and has the characteristics of fast hole-making speed, less pollution, and strong maneuverability.

[0003] The existing rotary drilling rigs generally drive the drill rod and the drill bucket to rotate through the power head to realize the soil drilling operation. When the existing rotary drilling rigs are drilling in hard rock formations, they are mostly equipped with various types of barrel drills. Especially in dry hole formations, rock-embedded barrel drills are mostly used to break the rock formations, and graded ring cutting and coring or spiral crushing and sand bucket bailing are carried out. During the drilling process, the pressure of the barrel drill mainly comes from the power head, the weight of the drill rod, the weight of the drill bucket, etc. The drilling process is static pressure grinding and crushing rock drilling, and the rock penetration efficiency is relatively low.

[0004] In view of this, it is particularly important to develop and design a rotary drilling tool and a rotary drilling rig that can solve the above-mentioned technical problems. Summary of the invention

[0005] The object of the present invention is to provide a rotary drilling tool, which has the characteristics of being able to generate vibration impact during drilling operation and having high rock penetration efficiency.

[0006] Another object of the present invention is to provide a rotary drilling rig which has the characteristics of being able to generate vibration impact during drilling operations and having a high rock penetration efficiency.

[0007] The present invention provides a technical solution:

[0008] In the first aspect, an embodiment of the present invention provides a rotary drilling tool, including a drill bucket, a connecting column and a vibration mechanism; the two ends of the drill bucket are a drilling end and a driving end, respectively, the drilling end is used to drill into the formation, the connecting column is connected to the driving end, and is used to connect to the drill rod; the vibration mechanism is connected to the driving end, and can apply an impact force along a first direction to the driving end, wherein the first direction is colinear with the axis of the drill bucket and is toward the direction of the drilling end.

[0009] In combination with the first aspect, in a first implementation method of the first aspect, the rotary drilling tool also includes a fixing part, which is sleeved on the connecting column and can be abutted against the side wall of the drilling well and fixed to the drilling well; the vibration mechanism is located between the fixing part and the driving end, and is connected to the fixing part.

[0010] In combination with the first aspect and its above-mentioned implementation manner, in a second implementation manner of the first aspect, the vibration mechanism includes a first vibrating member, a second vibrating member and a vibrating elastic member; the second vibrating member is fixedly connected to the driving end, the first vibrating member and the second vibrating member respectively have a first vibrating sawtooth and a second vibrating sawtooth that match each other, the first vibrating member is slidably connected to the fixing member, and the first vibrating member can move linearly relative to the fixing member along the first direction; one end of the vibrating elastic member is connected to the first vibrating member, and the other end is connected to the connecting column, and the first vibrating member is constructed to be pressed on the second vibrating member under the action of the elastic force of the vibrating elastic member, when the second vibrating sawtooth rotates along the second direction with the drilling bucket, and the first vibrating member is fixed to the drilling well through the fixing member, the first vibrating sawtooth can jump on the second vibrating sawtooth, and can collide with the second vibrating sawtooth along the first direction under the action of the elastic force of the vibrating elastic member to form the impact force applied to the driving end.

[0011] In combination with the first aspect and its above-mentioned implementation manner, in a third implementation manner of the first aspect, the first vibration member includes a first vibration disk and a plurality of sliding connectors, the first vibration serration is located on the first vibration disk, and the plurality of sliding connectors are distributed on the edge of the first vibration disk, and are all extended along a third direction opposite to the first direction; the fixing member is arranged in a circular ring shape, and a plurality of sliding connection grooves are opened on the side of the fixing member, the sliding connection grooves match the sliding connectors, and the plurality of sliding connectors are slidably arranged one by one in the plurality of sliding connection grooves.

[0012] In combination with the first aspect and the above-mentioned implementation manner, in a fourth implementation manner of the first aspect, the sliding connector is arranged in an arc-shaped plate shape, and the center sides of the plurality of sliding connectors are arranged toward the center of the fixing member.

[0013] In combination with the first aspect and the above-mentioned implementation manner, in a fifth implementation manner of the first aspect, the vibration elastic member includes a vibration fixed pressing portion, an elastic portion and a roller; the vibration fixed pressing portion is fixedly connected to the connecting column or the driving end, and the two ends of the elastic portion are respectively connected to the roller and the fixed pressing portion, the roller is located between the first vibration member and the fixed member, and the roller is constructed to have a tendency to move toward the first vibration member under the action of the elastic force of the elastic portion.

[0014] In combination with the first aspect and its above-mentioned implementation methods, in a sixth implementation method of the first aspect, the vibration elastic member also includes a guide rod and a guide block that are slidably connected to each other, and the guide block can slide along the guide rod; the guide rod is connected to the fixed pressing portion and extends along the first direction, the guide block is connected to the roller, and one end of the elastic portion away from the fixed pressing portion is connected to the guide block to connect the elastic portion and the roller.

[0015] In combination with the first aspect and its above-mentioned implementation manner, in a seventh implementation manner of the first aspect, the fixing member includes a first fixing disk, a fixing portion and a driving portion; the fixing portion is movably connected to the first fixing disk and is connected to the driving portion, and the driving portion can drive the fixing portion to move relative to the first fixing disk so that the fixing portion partially extends out of the first fixing disk.

[0016] In combination with the first aspect and its above-mentioned implementation methods, in an eighth implementation method of the first aspect, the fixing portion is arranged in a strip shape, and the two ends of the fixing portion in the length direction are respectively a fixed end and a connecting end; the connecting end is rotatably connected to the first fixed plate, and the fixed end is extended along a second direction, wherein the second direction is the rotation direction of the drilling bucket when drilling.

[0017] In the second aspect, an embodiment of the present invention further provides a rotary drilling rig, comprising a drill rod and the rotary drilling tool, wherein the rotary drilling tool comprises a drill bucket, a connecting column and a vibration mechanism; the two ends of the drill bucket are a drilling end and a driving end, respectively, the drilling end is used to drill into the formation, the connecting column is connected to the driving end, and is used to connect to the drill rod; the vibration mechanism is connected to the driving end, and can apply an impact force along a first direction to the driving end, wherein the first direction is colinear with the axis of the drill bucket and is in the direction of the drilling end.

[0018] Compared with the prior art, the rotary drilling tool and rotary drilling rig provided by the embodiments of the present invention have the following beneficial effects over the prior art:

[0019] The rotary drilling tool includes a drill bucket, a connecting column and a vibration mechanism, wherein the two ends of the drill bucket are a drilling end and a driving end, respectively, the drilling end is used to drill into the formation, the connecting column is connected to the driving end, and the connecting column is connected to the drill rod, and the vibration mechanism is connected to the driving end, and the vibration mechanism can apply an impact force along a first direction to the driving end, so that when the drill bucket performs a drilling operation, the drilling end is impacted and broken by the above-mentioned impact force, so as to improve the drilling efficiency of the rotary drilling tool. Wherein, the first direction is colinear with the axis of the drill bucket and is in the direction of the drilling end. In this way, by setting the vibration mechanism to apply an impact force to the driving end, the drill bucket can break the rock layer and other harder formations through vibration impact, so as to improve the drilling efficiency of the rotary drilling tool.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative work.

[0022] Figure 1 A structural schematic diagram of a rotary drilling tool provided in an embodiment of the present invention applied to a rotary drilling rig.

[0023] Figure 2 This is a front structural schematic diagram of a rotary drilling tool provided in an embodiment of the present invention.

[0024] Figure 3 A schematic diagram of the three-dimensional structure of a rotary drilling tool provided in an embodiment of the present invention.

[0025] Figure 4 for Figure 3 Schematic diagram of the enlarged local structure at IV in the middle.

[0026] Figure 5 A schematic cross-sectional structure diagram of a rotary drilling tool provided in an embodiment of the present invention.

[0027] Figure 6 for Figure 5 A magnified schematic diagram of the local structure at point VI.

[0028] Icons: 100-rotary drilling rig; 20-power head; 30-mast; 40-luffing mechanism; 50-slewing mechanism; 60-travel mechanism; 70-drill rod; 10-rotary drilling tool; 12-drill bucket; 121-drilling end; 122-driving end; 13-connecting column; 15-vibration mechanism; 151-first vibrating member; 1512-first vibrating plate; 1513-sliding connecting member; 1515-first vibrating sawtooth; 152 -second vibrating member; 1521-second vibrating sawtooth; 155-fixed pressing portion; 1551-fixed column; 153-vibrating elastic member; 1531-elastic portion; 1532-roller; 1533-guide rod; 1535-guide block; 16-fixing member; 161-first fixed plate; 162-fixing portion; 1621-fixed end; 165-second fixed plate; 1651-sliding connection groove; 166-fixed connection portion. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. The orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship usually placed when the invention product is used, or the orientation or position relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. The terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. Without more constraints, an element defined by the phrase "comprising a..." does not exclude the existence of other identical elements in the process, method, article or apparatus comprising the element.

[0031] It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] Example:

[0034] See also Figure 1 , Figure 1 It is a structural schematic diagram of a rotary drilling tool 10 provided in an embodiment of the present invention applied to a rotary drilling rig 100.

[0035] The embodiment of the present invention provides a rotary drilling tool 10, which has the characteristics of being able to generate vibration impact during drilling operation and having high rock penetration efficiency. The rotary drilling tool 10 can be applied to drilling rigs such as a rotary drilling rig 100.

[0036] Among them, taking the rotary drilling tool 10 applied to the rotary drilling rig 100 as an example, the rotary drilling rig 100 includes the rotary drilling tool 10 and the drill rod 70, so that the rotary drilling tool 10 is driven to be lifted or lowered by the drill rod 70, and the rotary drilling tool 10 is driven to rotate by the drill rod 70. Of course, the rotary drilling rig 100 can also include a power head 20, a mast 30, a boom mechanism 40, a slewing mechanism 50 and a walking mechanism 60 connected in sequence, and the drill rod 70 is connected to the power head 20, and the power head 20 drives the drill rod 70 to rotate.

[0037] Since the rotary drilling rig 100 adopts the rotary drilling tool 10 provided by the embodiment of the present invention, the rotary drilling rig 100 also has the characteristics of being able to generate vibration impact during drilling operations and having a high rock penetration efficiency.

[0038] The structural composition, working principle and beneficial effects of the rotary drilling tool 10 provided in an embodiment of the present invention will be specifically introduced below.

[0039] See also Figure 2 and Figure 3 , Figure 2 It is a front structural schematic diagram of the rotary drilling tool 10 provided in an embodiment of the present invention. Figure 3 It is a schematic diagram of the three-dimensional structure of the rotary drilling tool 10 provided in an embodiment of the present invention.

[0040] Figure 2 , the direction indicated by arrow A is the first direction, the direction indicated by arrow B is the second direction, and the direction indicated by arrow C is the third direction.

[0041] The rotary drilling tool 10 includes a drill bucket 12, a connecting column 13 and a vibration mechanism 15, wherein the two ends of the drill bucket 12 are respectively a drilling end 121 and a driving end 122, the drilling end 121 is used to drill the formation, the connecting column 13 is connected to the driving end 122, and the connecting column 13 is connected to the drill rod 70, and the vibration mechanism 15 is connected to the driving end 122, and the vibration mechanism 15 can apply an impact force along a first direction to the driving end 122, so that when the drill bucket 12 performs a drilling operation, the drilling end 121 is impacted and broken by the above-mentioned impact force, so as to improve the drilling efficiency of the rotary drilling tool 10. The first direction is colinear with the axis of the drill bucket 12 and is toward the drilling end 121.

[0042] In this way, the vibration mechanism 15 is provided to apply impact force to the driving end 122 , so that the drill bucket 12 can break harder strata such as rock layers through vibration impact, thereby improving the drilling efficiency of the rotary drilling tool 10 .

[0043] It should be noted that, in the present embodiment, the drill bucket 12 is a rock-embedded barrel drill, and in other embodiments, the drill bucket 12 may also be other types of barrel-type or cone-type drill buckets 12.

[0044] Please continue reading Figure 2 and Figure 3 The rotary drilling tool 10 may further include a fixing member 16, which is sleeved on the connecting column 13, and the fixing member 16 can be abutted against the side wall of the well where the drill bucket 12 is located when the drill bucket 12 is drilling, so that the fixing member 16 is fixed in the well, and the vibration mechanism 15 is located between the fixing member 16 and the driving end 122, and the vibration mechanism 15 is connected to the fixing member 16, so that the vibration mechanism 15 applies an impact force to the driving end 122 based on the fixing member 16.

[0045] See also Figure 3 and Figure 4 , Figure 4 for Figure 3 Schematic diagram of the enlarged local structure at IV in the middle.

[0046] Furthermore, the fixing member 16 may include a first fixing plate 161, a fixing portion 162 and a driving portion (not shown), the fixing portion 162 is movably connected to the first fixing plate 161, and the driving portion is connected to the fixing portion 162, and can drive the fixing portion 162 to partially extend out of the first fixing plate 161. For example, the driving portion drives the fixing portion 162 to extend one-half of the portion outside the first fixing plate 161, so as to fix the fixing member 16 to the drilling well by supporting the fixing portion 162 against the side wall of the drilling well.

[0047] It should be noted that the driving part can be a gear rack mechanism, a screw transmission mechanism, a pneumatic telescopic mechanism, an oil-operated telescopic mechanism, a belt transmission mechanism or a chain transmission mechanism, etc., or it can be an external control rope located on the ground to drive the fixing part 162 so that the fixing part 162 extends or retracts the first fixed disk 161.

[0048] In addition, the fixing member 16 may also include a second fixing plate 165 and a fixing connection portion 166. The first fixing plate 161 and the second fixing plate 165 are arranged at an interval, and the fixing connection portion 166 is located between the first fixing plate 161 and the second fixing plate 165. The fixing connection portion 166 is respectively connected to the first fixing plate 161 and the second fixing plate 165, and the fixing portion 162 is movably arranged between the first fixing plate 161 and the second fixing plate 165 to improve the stability of the fixing portion 162 extending out of the first fixing plate 161.

[0049] Furthermore, the fixing portion 162 is provided in a strip shape, and the two ends of the fixing portion 162 in the length direction are respectively a fixing end 1621 and a connecting end (not shown), wherein the connecting end is rotatably connected to the fixed holding portion 155, and the fixing end 1621 is extended along a second direction, and the second direction is the rotation direction of the drill bucket 12 when drilling. In this way, when the drill bucket 12 is drilling, the partially extended fixing end 1621 will be extended out of the first fixing plate 161 when it is against the side wall of the well, driven by the side wall of the well, thereby increasing the speed at which the fixing member 16 is fixed to the side wall of the well, and facilitating the insertion of the fixing end 1621 into the side wall of the well, thereby improving the stability of the fixing member 16.

[0050] See also Figure 2 , Figure 5 and Figure 6 , Figure 5 It is a schematic cross-sectional structure diagram of a rotary drilling tool 10 provided in an embodiment of the present invention. Figure 6 for Figure 5 A magnified schematic diagram of the local structure at point VI.

[0051] The vibration mechanism 15 may include a first vibration member 151, a second vibration member 152 and a vibration elastic member 153, wherein the second vibration member 152 is fixedly connected to the driving end 122, the first vibration member 151 has a first vibration sawtooth 1515, the second vibration member 152 has a second vibration sawtooth 1521, and, as Figure 2 The first vibrating sawtooth 1515 and the second vibrating sawtooth 1521 cooperate with each other, and when the first vibrating sawtooth 1515 does not rotate and the second vibrating sawtooth 1521 rotates along the second direction, the first vibrating sawtooth 1515 is separated from the second vibrating sawtooth 1521 by the inclined surface on the second vibrating sawtooth 1521.

[0052] The first vibrating member 151 is slidably connected to the fixing member 16, and the first vibrating member 151 can move linearly along the first direction relative to the fixing member 16. One end of the vibration elastic member 153 is connected to the first vibrating member 151, and the other end is connected to the connecting column 13. In addition, the vibration elastic member 153 is also configured to apply an elastic force to the first vibrating member 151 along the first direction, so that the first vibrating member 151 is pressed against the second vibrating member 152 under the action of the elastic force of the vibration elastic member 153.

[0053] In this way, when the second vibrating sawtooth 1521 rotates along the second direction with the drilling bucket 12 and the fixing member 16 is fixed to the side wall of the drilling well, the first vibrating member 151 cannot rotate because it is connected to the fixing member 16, and the second vibrating member 152 rotates along the second direction with the drilling bucket 12, so that the first vibrating sawtooth 1515 does not rotate, and the second vibrating sawtooth 1521 rotates along the second direction, so that the first vibrating sawtooth 1515 will be separated from the second vibrating sawtooth 1521 under the action of the inclined surface on the second vibrating sawtooth 1521, and move in a third direction opposite to the first direction, and after the first vibrating sawtooth 1515 rotates one sawtooth relative to the second vibrating sawtooth 1521, the first vibrating member 151 will collide with the second vibrating sawtooth 1521 along the first direction under the action of the elastic force of the vibration elastic member 153, so as to form an impact force applied to the driving end 122.

[0054] It should be noted that, in other embodiments, the vibration mechanism 15 may also be a motion mechanism such as a vibration motor to reciprocately apply impact force to the driving end 122 .

[0055] Further, the first vibrating member 151 may include a first vibrating disk 1512 and a plurality of sliding connectors 1513, wherein the first vibrating serration 1515 is located on the first vibrating disk 1512, and the plurality of sliding connectors 1513 are distributed on the edge of the first vibrating disk 1512, and are all extended along a third direction opposite to the first direction, and a plurality of sliding connecting grooves 1651 are opened on the side of the fixing member 16. In the present embodiment, the sliding connecting grooves 1651 are located on the outer edge of the second fixing disk 165, and the sliding connecting grooves 1651 match the sliding connecting members 1513, and the plurality of sliding connecting members 1513 are slidingly arranged in the plurality of sliding connecting grooves 1651 one by one. In other words, the plurality of sliding connecting members 1513 are respectively slidably connected to the outer side surface of the second fixing disk 165, so as to be slidably clamped on the first fixed pressing portion 155, so as to facilitate the first vibrating member 151 to reciprocate along the straight line where the first direction is located, so as to apply impact force to the second vibrating member 152.

[0056] It should be noted that the sliding stroke of the sliding connector 1513 relative to the second fixed plate 165 may have a range so that the fixed member 16 cannot be separated from the sliding connector 1513; the first vibrating member 151 and the second vibrating member 152 are both arranged in a circular ring and are both mounted on the connecting column 13. In addition, in other embodiments, the first vibrating member 151 may also be connected to the fixed member 16 through a sliding connection structure such as a slider and a slide rail.

[0057] Furthermore, the sliding connector 1513 may be provided in the shape of an arc-shaped plate, and the center sides of the plurality of sliding connectors 1513 are all provided toward the center of the fixing member 16 , so as to be supported on the side wall of the well during the drilling operation.

[0058] Please continue reading Figure 5 and Figure 6 The vibration elastic member 153 may include a vibration fixed pressing portion 155, an elastic portion 1531 and a roller 1532, wherein, in this embodiment, the vibration fixed pressing portion 155 is fixedly connected to the driving end 122 via a fixed column 1551, and in other embodiments, the fixed pressing portion 155 may also be fixed to the connecting column 13.

[0059] The two ends of the elastic part 1531 are respectively connected to the roller 1532 and the fixed holding part 155. The roller 1532 is located between the first vibrating member 151 and the fixing member 16. The elastic part 1531 applies an elastic force to the roller 1532 along the first direction, so that the roller 1532 has a tendency to move toward the first vibrating member 151 under the action of the elastic force of the elastic part 1531. When the fixing member 16 is fixed to the well and the drill bucket 12 performs drilling operations along the second direction, the first vibrating member 151 jumps on the second vibrating member 152 to form an impact force applied to the driving end 122. By setting the roller 1532, the elastic force along the first direction is kept applied to the first vibrating member 151 when the connecting column 13 and the drill bucket 12 rotate.

[0060] Furthermore, the vibration elastic member 153 may further include a guide rod 1533 and a guide block 1535 that are slidably connected to each other, and the guide block 1535 can slide along the guide rod 1533, and the guide rod 1533 is connected to the fixed pressing portion 155 and extends along the first direction, the guide block 1535 is connected to the roller 1532, and one end of the elastic portion 1531 away from the fixed pressing portion 155 is connected to the guide block 1535 to connect the elastic portion 1531 and the roller 1532. This improves the stability of the elastic force applied by the elastic portion 1531 to the first vibration member 151.

[0061] The working principle of the rotary drilling tool 10 provided in the embodiment of the present invention is:

[0062] When performing the vibration and rotation drilling operation, the fixed block of the fixing member 16 is driven by the driving unit to rotate relative to the first fixing plate 161 and the second fixing plate 165, so that the fixed end 1621 of the fixing block rotates out of the gap between the first fixing plate 161 and the second fixing plate 165, and as the drilling bucket 12 rotates in the second direction, the fixed end 1621 gradually inserts into the side wall of the well, so that the fixing member 16 does not rotate with the drilling bucket 12;

[0063] As the fixing member 16 does not rotate with the drilling bucket 12, the second vibrating member 152 rotates in the second direction relative to the first vibrating member 151, thereby causing the second vibrating saw tooth 1521 to rotate in the second direction relative to the first vibrating saw tooth 1515, so that the first vibrating saw tooth 1515 will be disengaged from the second vibrating saw tooth 1521 under the action of the inclined surface on the second vibrating saw tooth 1521, and move in a third direction opposite to the first direction. After the second vibrating saw tooth 1521 rotates one tooth in the second direction relative to the first vibrating saw tooth 1515, the first vibrating member 151 will collide with the second vibrating saw tooth 1521 in the first direction under the action of the elastic force of the vibrating elastic member 153 connected to the fixed pressing portion 155, so as to form an impact force applied to the driving end 122.

[0064] When the vibration is ended and the rotary drilling operation is continued, the fixed block of the fixing member 16 is driven by the driving part to rotate back to the gap between the first fixed disk 161 and the second fixed disk 165 relative to the first fixed disk 161 and the second fixed disk 165, and the first vibrating serration 1515 on the first vibrating member 151 will engage with the second vibrating serration 1521 on the second vibrating member 152 under the elastic force of the vibrating elastic member 153 connected to the fixed pressing portion 155, so that the fixing member 16 rotates along the second direction with the drilling bucket 12, and the first vibrating member 151 does not jump on the second vibrating member 152.

[0065] In summary:

[0066] The embodiment of the present invention provides a rotary drilling tool 10, which has the characteristics of being able to generate vibration impact during drilling operation and having high rock penetration efficiency.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the features in the above embodiments can be combined with each other without conflict, and the present invention can also have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. In addition, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A rotary drilling tool, characterized in that: It includes a drill bucket, a connecting column and a vibration mechanism; The two ends of the drill bucket are respectively a drilling end and a driving end, the drilling end is used to drill into the formation, and the connecting column is connected to the driving end and is used to connect with the drill rod; The vibration mechanism is connected to the driving end and is capable of applying an impact force along a first direction to the driving end, wherein the first direction is colinear with the axis of the drilling bucket and is toward the drilling end; The rotary drilling tool further comprises a fixing member, which is sleeved on the connecting column and can abut against the side wall of the well and be fixed to the well; The vibration mechanism is located between the fixing member and the driving end and is connected to the fixing member; the vibration mechanism applies an impact force to the driving end based on the fixing member; The vibration mechanism includes a first vibration member, a second vibration member and a vibration elastic member; The second vibrating member is fixedly connected to the driving end, the first vibrating member and the second vibrating member respectively have a first vibrating sawtooth and a second vibrating sawtooth that match each other, the first vibrating member is slidably connected to the fixing member, and the first vibrating member can move relative to the fixing member along a straight line in the first direction; One end of the vibration elastic member is connected to the first vibration member, and the other end is connected to the connecting column, and the first vibration member is constructed to be pressed on the second vibration member under the action of the elastic force of the vibration elastic member, and when the second vibration saw tooth rotates along the second direction with the drilling bucket and the first vibration member is fixed to the drilling well by the fixing member, the first vibration saw tooth can jump on the second vibration saw tooth, and can collide with the second vibration saw tooth along the first direction under the action of the elastic force of the vibration elastic member, so as to form the impact force applied to the driving end.

2. The rotary drilling tool according to claim 1, characterized in that: The first vibration member includes a first vibration plate and a plurality of sliding connectors, the first vibration sawtooth is located on the first vibration plate, and the plurality of sliding connectors are distributed on the edge of the first vibration plate and are all extended along a third direction opposite to the first direction; The fixing member is arranged in a circular ring shape, and a plurality of sliding connection grooves are opened on the side of the fixing member, the sliding connection grooves match the sliding connection members, and the plurality of sliding connection members are slidingly arranged in the plurality of sliding connection grooves one by one.

3. The rotary drilling tool according to claim 2, characterized in that: The sliding connection member is arranged in an arc-shaped plate shape, and the center sides of the plurality of sliding connection members are arranged toward the center of the fixing member.

4. The rotary drilling tool according to claim 1, characterized in that: The vibrating elastic member comprises a vibrating fixed pressing portion, an elastic portion and a roller; The vibrating fixed pressing portion is fixedly connected to the connecting column or the driving end, the two ends of the elastic portion are respectively connected to the roller and the fixed pressing portion, the roller is located between the first vibrating member and the fixing member, and the roller is constructed to have a tendency to move toward the first vibrating member under the action of the elastic force of the elastic portion.

5. The rotary drilling tool according to claim 4, characterized in that: The vibrating elastic member further comprises a guide rod and a guide block which are slidably connected to each other, and the guide block can slide along the guide rod; The guide rod is connected to the fixed pressing portion and extends along the first direction. The guide block is connected to the roller. One end of the elastic portion away from the fixed pressing portion is connected to the guide block to connect the elastic portion and the roller.

6. The rotary drilling tool according to any one of claims 1 to 5, characterized in that: The fixing member includes a first fixing plate, a fixing portion and a driving portion; The fixing portion is movably connected to the first fixing plate and is connected to the driving portion. The driving portion can drive the fixing portion to move relative to the first fixing plate, so that the fixing portion partially extends out of the first fixing plate.

7. The rotary drilling tool according to claim 6, characterized in that: The fixing portion is arranged in a strip shape, and two ends of the fixing portion in the length direction are a fixing end and a connecting end respectively; The connecting end is rotatably connected to the first fixed plate, and the fixed end is extended along a second direction, wherein the second direction is the rotation direction of the drilling bucket during drilling.

8. A rotary drilling rig, characterized in that: It comprises a drill rod and the rotary drilling tool as claimed in any one of claims 1 to 7, wherein the connecting column is connected to the drill rod.

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