CN103306600B - The axial instrument that spins of a kind of cam-type - Google Patents
The axial instrument that spins of a kind of cam-type Download PDFInfo
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- CN103306600B CN103306600B CN201310261486.XA CN201310261486A CN103306600B CN 103306600 B CN103306600 B CN 103306600B CN 201310261486 A CN201310261486 A CN 201310261486A CN 103306600 B CN103306600 B CN 103306600B
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Abstract
The present invention relates to a kind of cam-type axially to spin instrument, comprise rotary driving part and impact part, described rotary driving part comprises driving shaft and the rotary actuation cylinder that is set in successively on described driving shaft and the first cam bit, mutually affixed to each other; Described impact part comprises the second cam bit matched with described first cam bit end face, the first position limiting structure, the elastic component be linked on described driving cylinder that are in axial sliding connection with described second cam bit, and being arranged on second position limiting structure of described elastic component one end, the other end of described elastic component supports on the second cam bit; Described driving shaft drives described first cam bit to rotate by rotary actuation cylinder, and then drives described second cam bit to move vertically, for generation of impact forces in the flexible stroke of described elastic component.The present invention can provide simultaneously rotate and impact two kinds of active forces, lower to sealing requirements, can also with power drilling tool with the use of.
Description
Technical field
The present invention relates to drilling tool field, more particularly, a kind of cam-type of rotating force and impact forces that simultaneously provides is provided and axially spins instrument.
Background technology
The drilling tool major part that current oil field often adopts can only be single moment of torsion rotating force is provided, when this drilling tool drilling well uses for harder stratum or abrasive layer, Chang Yin lacks enough active forces and destroys stratum, such drill bit is easy to occur the phenomenon such as bit freezing, wearing and tearing, reduce drilling life of bit, virtually increase cost, and bit speed is lower, affects drilling efficiency.
Solving the problem at present is both at home and abroad a kind of rotary percussion drill by driving well tool increasing impact force on the basis of rotating force again of research, conventional is divided into two large classes, being be called a hydraulic impacter as clear water, mud etc. as the impactor of dynamic medium using high pressure liquid stream, is a kind of device that fluid pressure can be changed into impact energy acting; Another kind is that the impactor of drive medium is called air hammer with compressed air, is sometimes also pneumatic down-hole hammer, is a kind of device that gas pressure can be changed into impact energy acting.Although these equipment can improve the bit speed of hard fragility, broken formation, reduce the wearing and tearing of drill bit, sealing requirements is high, improves manufacturing cost.And the structures shape of these equipment itself can not add power drilling tool (turbine or screw rod) in drilling equipment combination, can be accompanied with pulse ripple while air hammer and hydraulic impacter produce percussion, this is just not suitable for the connection of power drilling tool and driving shaft and drill bit.
Summary of the invention
The object of the present invention is to provide a kind of axial instrument that spins of cam-type providing rotation by mechanism simultaneously and impact two kinds of active forces, not only solve the problem that drilling tool efficiency is low, cost is high only having rotating force, simultaneously also because the present invention provides active force by mechanism, lower to sealing requirements, and can not impulse action be produced, like this can with power drilling tool conbined usage, solve and to surge and air hammer is high to sealing requirements and the problem that can not be combined with power drilling tool.
The technical scheme that technical solution problem of the present invention adopts is: the axial instrument that spins of a kind of drilling equipment cam-type, comprise rotary driving part and impact part, wherein, described rotary driving part comprises driving shaft, rotary actuation cylinder and the first cam bit, and described rotary actuation cylinder and the first cam bit are set on described driving shaft also mutually affixed successively; Described impact part comprises the second cam bit matched with described first cam bit end face, the first position limiting structure, the elastic component be linked on described rotary actuation cylinder that are in axial sliding connection with described second cam bit, described impact part also comprises the second position limiting structure being arranged on described elastic component one end, and the other end of described elastic component supports on the second cam bit; Described driving shaft drives described first cam bit to rotate by rotary actuation cylinder, and then drives the axially-movable along described rotary actuation cylinder in the flexible stroke of described elastic component of described second cam bit, for generation of impact forces.
Axially spin in instrument in cam-type of the present invention, described second cam bit offers multiple first groove away from one end of described first cam bit.
Axially spin in instrument in cam-type of the present invention, described first position limiting structure comprises shell body and is fixedly connected on card-bit part on described shell body and corresponding with multiple described first groove.
Axially spin in instrument in cam-type of the present invention, described elastic component is spring.
Axially spin in instrument in cam-type of the present invention, described second position limiting structure comprises the ring cowling of middle hollow out, described ring cowling has the second groove matched with one end of described rotary actuation cylinder, described ring cowling is linked in one end of described rotary actuation cylinder by described second groove, and described elastic component supports on described ring cowling.
Axially spin in instrument in cam-type of the present invention, described shell body forms by the cylindrical tube be trapped among outside described rotary driving part and impact part and with the integrated conical tube of described cylindrical tube, described conical tube the maximum inscribed circle diameter is less than the interior circular diameter of described cylindrical tube, thus make described conical tube have the end face of protrusion relative to described cylindrical tube inner surface at described conical tube and described cylindrical tube junction, described end face is lined with wear-resisting gasket ring; Described cylindrical tube inner surface is connected with connector, between described connector and described ring cowling, is lined with adjustment gasket ring.
Axially spin in instrument in cam-type of the present invention, described conical tube is provided with external screw thread or internal thread.
Axially spin in instrument in cam-type of the present invention, described first cam bit is interval with the identical arc-shaped depression portion of at least 2 curvature of curved surface, form arc protuberance between adjacent described arc-shaped depression portion, the line style face that described first cam bit and described second cam bit contact keeps radial level to contact.
Axially spin in instrument in cam-type of the present invention, also comprise flat key, have keyway on described driving shaft periphery He on rotary actuation cylinder inner headed face, be connected by described flat key.
Axially spin in instrument in cam-type of the present invention, described rotary actuation cylinder periphery is provided with protruding key, the inner headed face of described first cam bit has the keyway matched with described protruding key, and described driving cylinder is connected with described first cam bit.
Structure design advantages of simple of the present invention, can provide simultaneously rotate and impact two kinds of active forces, the continuous crushing rock effect of the single fractured rock effect of percussion drilling and rotary drilling is combined, drilling machinery drilling speed can be improved to a great extent, reduce bit wear; The present invention provides active force by mechanism, therefore lower to sealing requirements, greatly reduces manufacturing cost, but also can with power drilling tool with the use of, the dual speed-raising of drilling well can be realized, reduce drilling cost.
Accompanying drawing explanation
Fig. 1 is the internal construction schematic diagram of the axial instrument that spins of cam-type of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional schematic;
Fig. 3 is the internal construction elevational schematic view of the axial instrument that spins of cam-type of the present invention;
Fig. 4 is that the B-B of Fig. 3 is to cross-sectional schematic.
Fig. 5 is the outer TV structure schematic diagram of the axial instrument that spins of cam-type of the present invention;
Fig. 6 is that the C-C of Fig. 5 is to cross-sectional schematic;
Detailed description of the invention
Below in conjunction with drawings and Examples, axially the spin structural principle of instrument and specific implementation of cam-type of the present invention is described further:
As shown in figures 1-4, the axial instrument that spins of a kind of drilling equipment cam-type can be seen from different perspectives from figure, this instrument can provide rotating force and impact forces simultaneously, comprise rotary driving part and impact part, wherein, described rotary driving part comprises driving shaft 1, rotary actuation cylinder 2 and the first cam bit 3, rotary actuation cylinder 2 and the first cam bit 3 are set on driving shaft 1 successively, keyway is had on driving shaft 1 periphery He on rotary actuation cylinder 2 inner headed face, being connected by flat key 16, also can be connected by spline.
Rotary actuation cylinder 2 periphery is provided with protruding key 17, and protruding key 17 is one-body molded with rotary actuation cylinder 2, the inner headed face of the first cam bit 3 has the keyway matched with protruding key 17, rotary actuation cylinder 2 is connected with the first cam bit 3.As shown in Figure 3, like this along with driving shaft 1 rotates, drive cylinder 2 to rotate by flat key 16 or spline driven rotary, and then drive the first cam bit 3 to rotate by protruding key 17.
As shown in Figure 1, described impact part comprises the second cam bit 4 matched with the first cam bit 3 end face, the first position limiting structure (figure does not indicate) be in axial sliding connection with the second cam bit 4, the elastic component 5 be linked on rotary actuation cylinder 2, also comprise the second position limiting structure (figure does not indicate) being arranged on elastic component 5 one end, the other end of elastic component 5 supports on the second cam bit 4.Wherein the first position limiting structure makes the second cam bit 4 can not rotate along with the rotation of the first cam bit 3, but only moves vertically in the flexible stroke of elastic component 5; Second position limiting structure is for supporting one end of elastic component 5; Elastic component 5 is preferably spring.
As shown in Figure 1, first cam bit 3 is interval with the identical arc-shaped depression portion of at least 2 curvature of curved surface, arc protuberance is formed between adjacent described arc-shaped depression portion, first cam bit 3 and the second cam bit 4 match and to contact and contact wire profile keeps radial level to contact, then the second cam bit 4 also has corresponding arc protuberance and arc-shaped depression portion, like this along with the rotation of the first cam bit 3, second cam bit 4 is non rotating also, but axially compression elastic piece 5 is removed in motion, after the protuberance summit of the first cam bit 3 contacts with the protuberance summit of the second cam bit 4, during along with the first cam bit 3 continuation rotation, second cam bit 4 will be ejected instantaneously by elastic component 5 and produce impact force, circulation like this then produces the percussion of certain frequency.
Further, as shown in Figure 1, multiple first groove 6 is offered on second cam bit 4 is circumferential away from one end of the first cam bit 3, also can be the first waist hole offering multiple spacing parallel arranging on the second cam bit 4, the axial direction of the length direction in the first waist hole and the axial instrument that spins of this cam-type be identical.As shown in Figure 5, described first position limiting structure comprises shell body 7, and shell body 7 position corresponding with multiple first groove 6 or multiple described first waist hole has screwed hole 18; As shown in Figure 1, described first position limiting structure also comprises the card-bit part 8 be fixedly connected on shell body 7, be preferably screens screw, also can be screens bolt, card-bit part 8 can snap in in the first groove 6 or described first waist hole, such first groove 6 or described first waist hole just become the first sliding rail of card-bit part 8, the second cam bit 4 is only moved vertically along the first sliding rail in the flexible stroke of elastic component 5, does not rotate.
First position limiting structure can also be that multiple card-bit part 8 is fixedly connected on the second cam bit 4 with spaced radial, shell body 7 has the multiple spacing parallel arrangings second waist hole corresponding with card-bit part 8, the axial direction of the length direction in described equally the second waist hole and the axial instrument that spins of this cam-type is identical, card-bit part 8 can snap in in described second waist hole, described like this second waist hole just becomes the second sliding rail of card-bit part 8, second cam bit 4 is only moved vertically along the second sliding rail equally in the flexible stroke of elastic component 5, does not rotate.
Further, as depicted in figs. 1 and 2, described second position limiting structure comprises the annular ring cowling 9 of middle hollow out, it is outer and coaxially arrange that ring cowling 9 is sleeved on driving shaft 1, ring cowling 9 has annular second groove (figure does not indicate) matched near one end of elastic component 5 with rotary actuation cylinder 2, ring cowling 9 is linked on one end of rotary actuation cylinder 2 by described second groove, and elastic component 5 supports on ring cowling 9
Further, as shown in Figure 6, shell body 7 forms by the cylindrical tube 12 be trapped among outside described rotary driving part and impact part and with the integrated conical tube 13 of described cylindrical tube 12, conical tube 13 the maximum inscribed circle diameter is less than the interior circular diameter of described cylindrical tube 12, thus make conical tube 13 have the annular end face 14 of protrusion relative to cylindrical tube 12 inner surface in conical tube 13 and cylindrical tube 12 junction, wear-resisting gasket ring 15 is lined with between this end face 14 and the first cam bit 3 and/or rotary actuation cylinder 2, and abut against with the both sides end face of described wear-resisting gasket ring 15 respectively, the inner surface of cylindrical tube 12 is connected with connector 10 by screw thread, be lined with between connector 10 and ring cowling 9 and regulate gasket ring 11, and abut against with the both sides end face of described adjustment gasket ring 11 respectively, regulate gasket ring 11 suitably can revise the pretightning force that its thickness carrys out adjustable elastic part 5, the inner surface preferably with gradient of connector 10 becomes inner cone circular and with internal thread, can be connected by screw thread with power drilling tool, connector 10 also can be provided with other connector matched with connected power drilling tool, and described power drilling tool comprises turbine, screw rod etc.
Further, conical tube 13 is provided with external screw thread or internal thread, can be threaded connection with PDC drill bit, diamond-impregnated bit or other drill bit.Conical tube can also be provided with other connector matched with connected drill bit.
In addition, shell body 7 can also increase and arranges a kind of control device, and make under the state applying the pressure of the drill, rotary driving part work, when drill bit lift-off drilling state, rotary driving part does not work.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, all these improve or conversion all should belong within the protection domain of claims of the present invention.
Claims (7)
1. the axial instrument that spins of drilling equipment cam-type, is characterized in that: comprise rotary driving part and impact part, wherein,
Described rotary driving part comprises driving shaft (1), rotary actuation cylinder (2) and the first cam bit (3), and it is upper and mutually affixed that described rotary actuation cylinder (2) and described first cam bit (3) are set in described driving shaft (1) successively;
Described impact part comprises the second cam bit (4) matched with described first cam bit (3) end face, the first position limiting structure, the elastic component (5) be linked on described rotary actuation cylinder (2) that are in axial sliding connection with described second cam bit (4), described impact part also comprises the second position limiting structure being arranged on described elastic component (5) one end, and the other end of described elastic component (5) supports on described second cam bit (4);
Described driving shaft (1) drives described first cam bit (3) to rotate by described rotary actuation cylinder (2), and then drive the axially-movable along described rotary actuation cylinder (2) in the flexible stroke of described elastic component (5) of described second cam bit (4), for generation of impact forces;
Described second cam bit (4) offers multiple first groove (6) away from one end of described first cam bit (3);
Described first position limiting structure comprises shell body (7) and is fixedly connected on upper and corresponding with multiple described first groove (6) card-bit part (8) of described shell body (7);
Described shell body (7) forms by the cylindrical tube be trapped among outside described rotary driving part and impact part (12) and with described cylindrical tube (12) integrated conical tube (13), described conical tube (13) the maximum inscribed circle diameter is less than the interior circular diameter of described cylindrical tube (12), thus make described conical tube (13) have the end face (14) of protrusion relative to described cylindrical tube (12) inner surface in described conical tube (13) and described cylindrical tube (12) junction, described end face (14) is lined with wear-resisting gasket ring (15), described cylindrical tube (12) inner surface is connected with connector (10), is lined with between described connector (10) and ring cowling (9) and regulates gasket ring (11).
2. the axial instrument that spins of cam-type as claimed in claim 1, is characterized in that: described elastic component (5) is spring.
3. the axial instrument that spins of cam-type as claimed in claim 1, it is characterized in that: described second position limiting structure comprises the ring cowling (9) of middle hollow out, described ring cowling (9) has the second groove matched with one end of described rotary actuation cylinder (2), described ring cowling (9) is linked in one end of described rotary actuation cylinder (2) by described second groove, and described elastic component (5) supports on described ring cowling (9).
4. the axial instrument that spins of cam-type as claimed in claim 1, is characterized in that: described conical tube (13) is provided with external screw thread or internal thread.
5. the axial instrument that spins of cam-type as claimed in claim 1, it is characterized in that: described first cam bit (3) is interval with the identical arc-shaped depression portion of at least 2 curvature of curved surface, form arc protuberance between adjacent described arc-shaped depression portion, the line style face that described first cam bit (3) contacts with described second cam bit (4) keeps radial level to contact.
6. the axial instrument that spins of cam-type as claimed in claim 1, it is characterized in that: the described cam-type axially instrument that spins also comprises flat key (16), have keyway on described driving shaft (1) periphery He on rotary actuation cylinder (2) inner headed face, be connected by described flat key (16).
7. the axial instrument that spins of cam-type as claimed in claim 1, it is characterized in that: described rotary actuation cylinder (2) periphery is provided with protruding key (17), the inner headed face of described first cam bit (3) has the keyway matched with described protruding key (17), described driving cylinder (2) is connected with described first cam bit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261486.XA CN103306600B (en) | 2013-06-27 | 2013-06-27 | The axial instrument that spins of a kind of cam-type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261486.XA CN103306600B (en) | 2013-06-27 | 2013-06-27 | The axial instrument that spins of a kind of cam-type |
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| Publication Number | Publication Date |
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| CN103306600A CN103306600A (en) | 2013-09-18 |
| CN103306600B true CN103306600B (en) | 2016-02-10 |
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| CN201310261486.XA Active CN103306600B (en) | 2013-06-27 | 2013-06-27 | The axial instrument that spins of a kind of cam-type |
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| CN104863497B (en) * | 2015-04-20 | 2018-01-30 | 中国地质大学（武汉） | A kind of drill bit spiral percussion mechanism |
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| CN109441356B (en) * | 2019-01-08 | 2020-08-28 | 西南石油大学 | Hydraulic oscillator based on cam and impeller |
| CN112964458A (en) * | 2019-11-28 | 2021-06-15 | 中石化石油工程技术服务有限公司 | Performance testing device of rotary-punching screw impact mechanism |
| CN112461487B (en) * | 2020-12-08 | 2022-06-07 | 中国石油天然气集团有限公司 | Impact performance testing device for underground cam type axial impactor |
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| GB630049A (en) * | 1947-08-20 | 1949-10-04 | Snyder Oil Tool Corp | Improvements in or relating to a rotary impact drill |
| GB725175A (en) * | 1953-03-06 | 1955-03-02 | Charles John Durham Carruthers | Improvements in or relating to drilling arrangements for wells, bore-holes, shot-holes and the like |
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| CN103306600A (en) | 2013-09-18 |
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