CN111594571A - Buffer device and rotary drilling rig - Google Patents
Buffer device and rotary drilling rig Download PDFInfo
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- CN111594571A CN111594571A CN202010557536.9A CN202010557536A CN111594571A CN 111594571 A CN111594571 A CN 111594571A CN 202010557536 A CN202010557536 A CN 202010557536A CN 111594571 A CN111594571 A CN 111594571A
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- 238000005553 drilling Methods 0.000 title claims abstract description 15
- 230000009471 action Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 12
- 230000000670 limiting effect Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The application relates to the technical field of engineering mechanical equipment, in particular to a buffering device and a rotary drilling rig. The buffer device comprises a buffer pressure plate, a key sleeve body, a guide rod, an elastic piece and a guide flange; the buffer pressure plate is sleeved on the key sleeve body; the first end of the guide rod is movably connected with the buffer pressure plate, and the second end of the guide rod is detachably connected with the key sleeve body; the buffer pressure plate can move towards the key sleeve body along the length direction of the guide rod; the elastic piece is arranged between the buffer pressure plate and the key sleeve body, the telescopic direction of the elastic piece is consistent with the length direction of the guide rod, and when the buffer pressure plate moves close to the key sleeve body, the elastic piece is compressed; the guide flange is connected to a predetermined position of the key housing body so that the buffer pressure plate can be brought into contact with the guide flange by a restoring force of the elastic member. The application provides a buffer's guide bar easily installs and dismantles, and when carrying on spacingly to the buffering pressure disk through flange, area of contact between the two is great, and the difficult problem that produces stress concentration promotes spacing reliability.
Description
Technical Field
The invention relates to the technical field of engineering mechanical equipment, in particular to a buffering device and a rotary drilling rig.
Background
The rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering, and is widely applied to foundation construction of various foundations such as cast-in-place piles, foundation reinforcement and the like. The power head is used as a working device of the rotary drilling rig to provide power for drilling, so that the reliability of the power head is very important for the rotary drilling rig, and the buffer key sleeve body is an important part of the power head.
The existing buffer key sleeve body utilizes a guide rod nut to realize the limit of a buffer pressure plate, but the guide rod is easy to break and lose efficacy, the structure for limiting by utilizing a wedge block is complex to install, and the problem of stress concentration is easy to generate, so that the limit is ineffective.
Disclosure of Invention
The invention aims to provide a buffer device and a rotary drilling rig, and solves the technical problem that a limiting part of the existing buffer device for the rotary drilling rig is easy to damage and lose efficacy to a certain extent.
The application provides a buffer device which comprises a buffer pressure plate, a key sleeve body, a guide rod, an elastic part and a guide flange;
the first end of the guide rod is movably connected with the buffer pressure plate, and the second end of the guide rod is detachably connected with the key sleeve body; the buffer pressing disc can move towards the key sleeve body along the length direction of the guide rod;
the elastic part is arranged between the buffer pressure plate and the key sleeve body, and the guide flange is connected to the preset position of the key sleeve body, so that the buffer pressure plate can be contacted with the guide flange under the action of the restoring force of the elastic part.
In the above technical solution, preferably, the buffer pressure plate is sleeved outside the key sleeve body; a guide hole is formed in the lower flange of the buffer pressure plate, and the first end of the guide rod penetrates through the guide hole and forms a gap with the guide hole.
In any of the above technical solutions, preferably, the second end of the guide rod is formed with a threaded connection portion;
the threaded connecting part is in threaded connection with the positioning flange of the key sleeve body, or
The threaded connecting part penetrates through the positioning flange of the key sleeve body and is in threaded connection with the nut.
In any one of the above technical solutions, preferably, the guide flange is located between the upper flange and the lower flange of the buffer pressure plate, and the guide flange is detachably connected to the top of the key sleeve body.
In any of the above technical solutions, preferably, the guide flange includes one or more arc-shaped guide segments;
when the guiding flange comprises a plurality of arc-shaped guiding sections, the arc-shaped guiding sections are sequentially arranged to form an annular flange structure.
In any of the above technical solutions, preferably, a maximum opening caliber of the arc-shaped guide section is smaller than an inner diameter of an upper flange of the buffer pressure plate.
In any of the above technical solutions, preferably, the outer diameter of the annular flange structure is greater than the inner diameter of the lower flange of the buffer pressure plate, and is smaller than the inner diameter of the cylinder of the buffer pressure plate.
In any one of the above technical solutions, preferably, the arc-shaped guide section faces the guide groove formed on one side of the inner wall of the buffer pressure plate, the inner wall of the buffer pressure plate is provided with a guide key, the guide key and the guide groove are arranged in a one-to-one correspondence manner, and the guide key and the guide direction of the guide groove are consistent with the movement direction of the buffer pressure plate.
In any of the above technical solutions, preferably, the arc-shaped guide section is provided with a plurality of mounting holes for connecting the arc-shaped guide section and the key sleeve body.
The application also provides a rotary drilling rig which comprises the buffer device.
Compared with the prior art, the invention has the beneficial effects that:
the application provides a buffer, optimizes through the structure to the guide bar, makes its easily installation and dismantlement to cancel among the prior art coupling nut between guide bar upper end and the buffering pressure disk, eliminated the nut location and leaded to the problem of guide arm inefficacy. In addition, when the buffer device of this application carries on spacingly through the guiding flange to the buffering pressure disk, area of contact between the two is great, and the difficult problem that produces stress concentration promotes spacing reliability.
The application provides a rotary drilling rig, include buffer, consequently also have buffer's promotion spacing reliability, the beneficial effect of convenient to detach and maintenance simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a buffering device according to an embodiment of the present disclosure at a first viewing angle;
fig. 2 is a schematic structural diagram of a buffering device according to an embodiment of the present disclosure at a second viewing angle;
FIG. 3 is a schematic cross-sectional view illustrating a partial structure of a cushioning device according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a guide flange of a cushioning apparatus according to an embodiment of the present disclosure from one perspective;
FIG. 5 is a schematic structural diagram of a guide flange of a cushioning apparatus according to an embodiment of the present disclosure from another perspective;
FIG. 6 is a schematic structural diagram of an arc-shaped guide section of a guide flange provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram of a guide rod according to an embodiment of the present application.
Reference numerals:
1-buffer pressure plate, 11-upper flange, 12-lower flange, 13-cylinder, 131-guide key, 2-key sleeve body, 21-positioning flange, 3-guide rod, 31-threaded connection part, 32-stepped limiting structure, 4-nut, 5-spring, 6-guide flange, 61-arc guide section, 611-guide groove, 612-mounting hole and 7-buffer.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art in view of the disclosure of the present application. For example, the order of operations described herein is merely an example, which is not limited to the order set forth herein, but rather, variations may be made in addition to operations which must occur in a particular order, which will be apparent upon understanding the disclosure of the present application. Moreover, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.
The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and/or systems described herein that will be apparent after understanding the disclosure of the present application.
Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on," "connected to," coupled to, "over," or "overlying" another element, it may be directly "on," "connected to," coupled to, "over," or "overlying" the other element, or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," directly coupled to, "directly over" or "directly overlying" another element, there may be no intervening elements present.
As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.
Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section referred to in the examples described herein may be termed a second element, component, region, layer or section without departing from the teachings of the examples.
For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to other elements would then be oriented "below" or "lower" relative to the other elements. Thus, the term "above … …" includes both an orientation of "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.
Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.
The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application.
A damping device and a rotary drilling rig according to some embodiments of the invention are described below with reference to fig. 1 to 7.
Example one
The embodiment provides a buffer device, which comprises a buffer pressure plate 1, a key sleeve body 2, a guide rod 3, an elastic part and a guide flange 6.
As shown in fig. 1 and 2, the buffer pressure plate 1 includes an upper flange 11, a cylinder 13, and a lower flange 12, and the cylinder 13 and the lower flange 12 of the buffer pressure plate 1 are sleeved outside the key cover body 2 and can move relative to the key cover body 2 along an axial direction (i.e., a first direction) of the buffer pressure plate 1 to approach the key cover body 2 or to be away from the key cover body 2.
As shown in fig. 1 and 2, the guide rod 3 is located outside the key cover body 2 and is disposed along the axial direction of the buffer pressure plate 1, that is, the length direction of the guide rod 3 is the first direction. The lower flange 12 is formed with a guide hole penetrating in a first direction, and the first end of the guide rod 3 penetrates through the guide hole and forms a gap with the guide hole, so that the first end of the guide rod 3 can move in the guide hole in the first direction. As shown in fig. 7, the second end of the guide rod 3 is formed with a threaded connection portion 31, and the threaded connection portion 31 is threadedly coupled (not shown) to the positioning flange 21 of the key housing body 2 or the threaded connection portion 31 passes through the positioning flange 21 of the key housing body 2 and is coupled to the nut 4 (shown in fig. 1), thereby achieving detachable coupling of the guide rod 3 to the key housing body 2. When the guide rod 3 needs to be disassembled, the guide rod 3 can be disassembled only by disassembling the threaded connection part 31 of the guide rod 3 from the key sleeve body 2 or the nut 4.
In addition, in order to improve the connection stability between the threaded connection portion 31 of the guide rod 3 and the key sleeve body 2, it is preferable that, as shown in fig. 7, a stepped stopper 32 or an expanded diameter structure (not shown) is formed at an end of the guide rod 3 corresponding to the end of the threaded connection portion 31 near the first end, that is, the diameter of the threaded connection portion 31 of the guide rod 3 is smaller than the diameter of the main body of the guide rod 3, so that when the threaded connection portion 31 is connected to the positioning flange 21 or the nut 4 of the key sleeve body 2, the stepped stopper 32 or the expanded diameter structure can play a role of stopping the guide rod 3, thereby improving the installation stability of the guide rod 3.
As shown in fig. 1 and 2, the elastic member may be a spring 5, which is preferably sleeved on the guide rod 3 and is located between the lower flange 12 of the buffer pressure plate 1 and the positioning flange 21 of the key sleeve body 2. When the buffer pressure plate 1 is driven to move towards the key cover body 2 along the first direction by the driving force, the spring 5 is continuously compressed and is applied to the buffer pressure plate 1 so as to enable the buffer pressure plate 1 to move away from the key cover body 2, therefore, when the driving force on the buffer pressure plate 1 is removed, the buffer pressure plate 1 can move away from the key cover body 2 along the first direction under the action of the restoring force of the spring 5.
Preferably, as shown in fig. 1 and 2, in order to ensure the force balance and the movement stability of the buffer pressure plate 1, the number of the guide rods 3 and the number of the springs 5 are both multiple, and the guide rods 3 and the springs 5 are arranged between the lower flange 12 of the buffer pressure plate 1 and the positioning flange 21 of the key sleeve body 2 at intervals, and the guide rods 3 and the springs 5 are arranged in a one-to-one correspondence manner.
As shown in fig. 2 and 3, the guide flange 6 is attached to the key housing body 2 at a predetermined position, which may be specifically the top of the key housing body 2. When the buffer pressure plate 1 deviates from the key sleeve body 2 under the action of the restoring force of the spring 5, the lower flange 12 of the buffer pressure plate 1 can be in contact with the guide flange 6, so that the motion of the buffer pressure plate 1 is limited.
Since the guide flange 6 needs to be installed in the buffer pressure plate 1 and connected to the top of the key sleeve body 2, the guide flange 6 is designed to be a sectional structure in order to facilitate installation of the guide flange 6. Specifically, as shown in fig. 2 and 4 to 6, the guide flange 6 includes one or more arc-shaped guide segments 61; the arc-shaped guide section 61 is provided with a plurality of mounting holes 612, and the arc-shaped guide section 61 can be fixedly mounted on the top of the key sleeve body 2 through the mounting holes 612 and a connecting piece (such as a screw). When the guide flange 6 includes a plurality of arc-shaped guide sections 61, the arc-shaped guide sections 61 are arranged in sequence to form an annular flange structure. Compare in arc direction section 61 and be a structure, a plurality of arc direction sections 61 arrange in order and form the form of ring flange structure better to buffering pressure disk 1's spacing effect, and a plurality of arc direction sections 61 share the impact force of receiving to buffering pressure disk 1 is spacing jointly, can avoid the atress to concentrate, and is spacing difficult for losing efficacy.
The quantity of a plurality of arc direction sections 61 that guiding flange 6 includes can be two, three, four etc. wherein show in fig. 4 and 5 that the quantity of arc direction section 61 is three structure, and three arc direction section 61 arranges in order and forms the annular flange structure, and forms the clearance between the adjacent arc direction section 61 to can have certain buffering space when arc direction section 61 receives the impact force that buffering pressure disk 1 resets.
In order to facilitate the installation of the arc-shaped guide section 61 on the top of the key sleeve body 2 in the buffer pressure plate 1 from the opening of the upper flange 11 of the buffer pressure plate 1, the maximum opening diameter (corresponding to F in fig. 6) of the arc-shaped guide section 61 is set smaller than the inner diameter (corresponding to E in fig. 4) of the upper flange 11 of the buffer pressure plate 1, and preferably, E is equal to or larger than F +5 (unit mm), so that the installation of the guide flange 6 can be realized.
In order to limit the guide flange 6 to the buffer pressure plate 1, the outer diameter (corresponding to B in fig. 4) of the guide flange 6 is larger than the inner diameter (corresponding to a in fig. 4) of the lower flange 12 of the buffer pressure plate 1, and preferably, B is larger than or equal to a +20 (unit mm), so that when the buffer pressure plate 1 moves away from the key sleeve body 2, the lower flange 12 of the buffer pressure plate 1 can abut against the guide flange 6, thereby limiting the buffer pressure plate 1.
In addition, as shown in fig. 2, 5 and 6, in order to further increase the guiding and limiting effect of the arc-shaped guiding section 61 on the buffer pressure plate 1 during the movement of the buffer pressure plate 1, a guiding groove 611 extending along the first direction is formed on one side of the arc-shaped guiding section 61 facing the inner wall of the buffer pressure plate 1, a guiding key 131 extending along the first direction is formed on the inner wall of the buffer pressure plate 1, and the guiding keys 131 and the guiding grooves 611 are arranged in a one-to-one correspondence manner, so that the further guiding and limiting effect on the buffer pressure plate 1 during the movement of the buffer pressure plate 1 can be achieved. Specifically, the number of the guide grooves 611 on the arc-shaped guide section 61 depends on the arc length of the arc-shaped guide section 61, and the longer the arc length of the arc-shaped guide section 61 is, the greater the number of the guide grooves 611 provided thereon can be. Preferably, as shown in fig. 5, when the guide flange 6 includes three arc-shaped guide sections 61, two guide grooves 611 are formed on each arc-shaped guide section 61. In addition, a guide key extending along the first direction may be formed on one side of the inner wall of the arc-shaped guide section 61, and a guide groove extending along the first direction may be formed on the inner wall of the buffer pressure plate 1 to form a guide engagement structure.
A damper 7 is also provided between the lower flange 12 of the damper pressure plate 1 and the positioning flange 21 of the key sleeve body 2.
The assembling and disassembling processes and the working process of the damping device of the present embodiment will be specifically described with reference to the structures of the damping devices of fig. 1 and 2.
The assembly process of the buffer device comprises the following steps: firstly, a guide rod 3 is arranged on a key sleeve body 2, and a spring 5 is sleeved on the guide rod 3; then, the buffer pressure plate 1 is assembled to the key sleeve body 2 through the guide rod 3; finally, the guide flange 6 is put into a proper position in the buffer pressure plate 1 through the mouth part of the upper flange 11 of the buffer pressure plate 1 and is fixedly assembled with the key sleeve body 2.
In the dismounting process of the buffer device, the dismounting of the guide rod 3 only needs to dismount the nut 4 at the lower part of the guide rod 3, the dismounting of the guide rod 3 can be realized, and then the dismounting between the buffer pressure plate 1 and the key sleeve body 2 is carried out.
In the assembling and disassembling processes of the buffer device, the structure of the guide rod 3 is optimized, so that the buffer device is easy to assemble and disassemble, the guide flange 6 is designed into a sectional type, the guide flange 6 is convenient to assemble, a connecting nut between the upper end of the guide rod and the buffer pressure plate in the prior art is eliminated, and the problem that the guide rod fails due to nut positioning is solved.
The working process of the buffer device is as follows: after the buffer pressure plate 1 is stressed, the buffer pressure plate 1 moves downwards under the guiding action of the guide key 131, the guide groove 611 of the guide flange 6 plate and the guide rod 3, and the spring 5 is compressed; when the buffer pressure plate 1 moves to the extreme position, when the driving force acting on the buffer pressure plate 1 is cancelled, the spring 5 moves upwards, the buffer pressure plate 1 moves upwards under the guiding action of the guide key 131, the guide groove 611 of the guide flange 6 and the guide rod 3, and when the initial position is reached, the lower flange 12 of the buffer pressure plate 1 is in contact with the guide flange 6 to limit the buffer pressure plate 1.
In the above-mentioned motion process, the motion process of buffering pressure disk 1 is difficult for squinting steadily, and buffering pressure disk 1's spacing effectual, and when guiding flange 6 carries on spacingly to buffering pressure disk 1, area of contact between the two is great, is difficult for producing stress concentration's problem, promotes spacing reliability.
Example two
The embodiment provides a rotary drilling rig, which comprises the buffer device of the embodiment, so that the buffer device has the advantages of improving the limiting reliability and being convenient to detach and maintain.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A buffer device is characterized by comprising a buffer pressure plate, a key sleeve body, a guide rod, an elastic part and a guide flange;
the first end of the guide rod is movably connected with the buffer pressure plate, and the second end of the guide rod is detachably connected with the key sleeve body; the buffer pressing disc can move towards the key sleeve body along the length direction of the guide rod;
the elastic part is arranged between the buffer pressure plate and the key sleeve body, and the guide flange is connected to the preset position of the key sleeve body, so that the buffer pressure plate can be contacted with the guide flange under the action of the restoring force of the elastic part.
2. The cushioning device of claim 1, wherein said cushioning pressure plate is sleeved outside said key sleeve; a guide hole is formed in the lower flange of the buffer pressure plate, and the first end of the guide rod penetrates through the guide hole and forms a gap with the guide hole.
3. A damper of claim 1 wherein the second end of the guide rod is formed with a threaded connection;
the threaded connecting part is in threaded connection with the positioning flange of the key sleeve body, or
The threaded connecting part penetrates through the positioning flange of the key sleeve body and is in threaded connection with the nut.
4. The cushioning device of claim 1, wherein said guide flange is positioned between an upper flange and a lower flange of said cushioning platen, and said guide flange is removably attached to a top portion of said key housing body.
5. A fender according to claim 4 wherein the guide flange includes one or more arcuate guide sections;
when the guiding flange comprises a plurality of arc-shaped guiding sections, the arc-shaped guiding sections are sequentially arranged to form an annular flange structure.
6. The cushioning device of claim 5, wherein the maximum opening diameter of the arcuate guide section is smaller than the inner diameter of the upper flange of the cushioning platen.
7. The cushioning device of claim 5, wherein the outer diameter of the annular flange structure is greater than the inner diameter of the lower flange of the cushioning platen and less than the inner diameter of the barrel of the cushioning platen.
8. The buffer device as claimed in claim 5, wherein a guide groove is formed on one side of the arc-shaped guide section facing the inner wall of the buffer pressure plate, a guide key is formed on the inner wall of the buffer pressure plate, the guide key and the guide groove are arranged in one-to-one correspondence, and the guide direction of the guide key and the guide groove is consistent with the movement direction of the buffer pressure plate.
9. The cushioning device of claim 5, wherein the arcuate guide section defines a plurality of mounting holes for connecting the arcuate guide section to the key housing body.
10. A rotary drilling rig comprising a damping device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010557536.9A CN111594571A (en) | 2020-06-18 | 2020-06-18 | Buffer device and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010557536.9A CN111594571A (en) | 2020-06-18 | 2020-06-18 | Buffer device and rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111594571A true CN111594571A (en) | 2020-08-28 |
Family
ID=72191760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010557536.9A Pending CN111594571A (en) | 2020-06-18 | 2020-06-18 | Buffer device and rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111594571A (en) |
-
2020
- 2020-06-18 CN CN202010557536.9A patent/CN111594571A/en active Pending
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