CN203114194U - Drill stem protector used for absorbing drill stem impact vibration - Google Patents
Drill stem protector used for absorbing drill stem impact vibration Download PDFInfo
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- CN203114194U CN203114194U CN 201320127167 CN201320127167U CN203114194U CN 203114194 U CN203114194 U CN 203114194U CN 201320127167 CN201320127167 CN 201320127167 CN 201320127167 U CN201320127167 U CN 201320127167U CN 203114194 U CN203114194 U CN 203114194U
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Abstract
The utility model discloses a drill stem protector used for absorbing drill stem impact vibration. The drill stem protector is composed of a vibration absorbing device, an upper connector, and a lower connector. The vibration absorbing device comprises a box body. The upper connector and the lower connector are fixed at the upper end of the box body and the lower end of the box body respectively. Circumferential absorption isolators are arranged inside the box body in the circumferential direction. A first axial absorption isolator and second axial absorption isolators are arranged inside the box body and on the inner sides of the circumferential absorption isolators. Each circumferential absorption isolator comprises a first shell body and a partition board fixed inside the shell body and dividing the first shell body into a plurality of cavities. A first quality block and a first viscous fluid are arranged inside each cavity body. The first axial absorption isolator comprises a second shell body and a second quality block arranged inside the second shell body. The upper end of the second quality block and the lower end of the second quality block are fixed with bent spring plates respectively. A second viscous fluid is filled inside the second shell body. Each second axial absorption isolator comprises a third shell body, a large quality block and a small quality block, wherein the large quality block and the small quality block are arranged inside the third shell body, and a third viscous fluid is filled inside the third shell body. The drill stem protector can quickly reduce vibration generated in a drilling process, and is high in vibration-reducing efficiency.
Description
Technical field
The utility model relates to a kind of vibration absorber, especially relates to a kind of for the drill pipe protector that absorbs the drilling rod impact shock.
Background technology
Vibration is a kind of forms of motion that various plant equipment produce in operation process inevitably, and vibration can cause the plant equipment structural member to produce fatigue failure too early, and it is not normal that the motion of structural member is taken place, and locate inaccurate and problem such as generation noise.Therefore, become the mode of a kind of effective raising equipment moving precision, application life and reduction noise for the vibration suppression of structural member.
At present, rotary drilling rig carries out in the pore-forming operation process in the open air, because geologic structure complexity, make drill bit in drilling process, produce bigger impact shock, its impact shock effect makes drilling rod produce fatigue failure too early, greatly shortened the application life of drilling rod, simultaneously operating efficiency has been reduced greatly.Rig is under the vibratory impulse effect, and the spoilage of component improves, and the reliability of machine reduces, and brings greater loss to enterprise, the impact shock in the time of need reducing the drilling operation effectively.
For reliability and the operation stability of equipment of rotary drilling rig work, and under the not convenient situation of energy supply, use Passive Control, in the vibration suppression to camp equipment.In addition, from the angle of energy conservation, also need Passive Control vibration absorber preferably.The Passive Control vibration absorber is that the energy that utilizes the structural member displacement to produce drives the Passive Control vibration absorber, the Passive Control vibration absorber is moved, absorb and consume the energy of structural member vibration generation, realize power consumption fast, to reduce the amplitude of structural member, improve kinematic accuracy, reduce member motion wearing and tearing each other, improve its fatigue strength.But because conventional Passive Control vibration absorber often all is to be controlled to be the master with linear oscillator, so the frequency band range of its use is narrow, only can carry out vibration isolation to several effective Frequency points, can't realize the absorbing vibration damping of wider frequency territory scope.And drilling rod produces the compound action of extensional vibration and twisting vibration in the course of the work, need realize comprehensive vibration damping to drilling rod, improves the reliability of drilling rod work, and conventional Passive Control vibration absorber can not reach this effectiveness in vibration suppression.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art; provide a kind of for the drill pipe protector that absorbs the drilling rod impact shock; it is simple in structure, reasonable in design, use is easy to operate and shock attenuation result good; can effectively solve the existing vibration absorber problem undesirable to the drilling rod vibration isolation; can effectively reduce the vibration that produces in the drilling process fast; need not outside any energy resource supply simultaneously, damping efficiency height, applied range.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of for the drill pipe protector that absorbs the drilling rod impact shock, it is characterized in that: by shock-absorbing means, top connection and lower contact are formed, described shock-absorbing means comprises casing, described top connection is fixed on the upper end of casing, described lower contact is fixed on the lower end of casing, the inside of described casing is along circumferentially being provided with for absorbing the circumferential bump leveller that drilling rod work produces twisting vibration, the inside of described casing and be arranged in circumferential bump leveller inboard and be provided with for absorbing the first axial bump leveller and the second axial bump leveller that drilling rod work produces extensional vibration, described circumferential bump leveller comprises first housing of fixedlying connected with cabinet wall and evenly is fixed on first enclosure interior and first housing is divided into the polylith dividing plate of a plurality of cavitys, the inside of each described cavity is provided with first mass, be filled with first viscous fluid in the described cavity, the volume of described first viscous fluid is to place 80%～90% of residual volume behind first mass in the described cavity; The described first axial bump leveller is arranged on the inside center position of casing, the described first axial bump leveller comprises second housing of fixedlying connected with cabinet wall and is arranged on second mass of second enclosure interior, all fixedly there is the flexural spring plate at the two ends up and down of described second mass, be filled with second viscous fluid in described second housing, the volume of described second viscous fluid is to place 80%～90% of residual volume behind second mass and the flexural spring plate in second housing; The described second axial bump leveller is arranged between circumferential bump leveller and the first axial bump leveller, big mass and little mass that the described second axial bump leveller comprises the 3rd housing of fixedlying connected with cabinet wall and is arranged on the 3rd enclosure interior, be filled with the 3rd viscous fluid in described the 3rd housing, the volume of described the 3rd viscous fluid is to place 80%～90% of residual volume behind big mass and the little mass in the 3rd housing.
Above-mentioned is a kind of for the drill pipe protector that absorbs the drilling rod impact shock, it is characterized in that: described first housing is by first upper plate that is connected, first lower shoe, outer panel, interior plate and side seal board are formed, the quantity of described side seal board is two, described dividing plate and first upper plate, first lower shoe, the inwall of outer panel and interior plate is all fixedlyed connected, all gapped between described first mass and outer panel and the interior plate, described first mass be shaped as sphere, beeline between described first mass and first upper plate is L1, beeline between described first mass and first lower shoe is L2, described first mass and the beeline between the side seal board of one side in the rear and front end are L3, be L4 at described first mass of rear and front end and the beeline between the dividing plate at its opposite side, described (L1+L2)＜(L3+L4); Described first mass and the beeline between the dividing plate of one side in the centre position are L5, are L6 at described first mass in centre position and the beeline between the dividing plate at its opposite side, described (L1+L2)＜(L5+L6).
Above-mentioned a kind of drill pipe protector for absorption drilling rod impact shock, it is characterized in that: the shape of cross section of described casing is round rectangle, the shape of cross section of described first housing is the fan annular.
It is above-mentioned that a kind of it is characterized in that: the shape of cross section of described casing is rectangle for the drill pipe protector that absorbs the drilling rod impact shock, described first housing be shaped as rectangle.
Above-mentioned a kind of drill pipe protector for absorption drilling rod impact shock, it is characterized in that: the quantity of described circumferential bump leveller is two, two described circumferential bump levellers are symmetrical set.
Above-mentioned is a kind of for the drill pipe protector that absorbs the drilling rod impact shock, it is characterized in that: described second housing be shaped as hollow square, described second housing is by first front side board that is connected, first back side panel, first left plate, first right plate, second upper plate and second lower shoe are formed, being shaped as of described second mass is cylindrical, flexural spring plate and the beeline between second upper plate in described second mass upper end are L7, the flexural spring plate that is positioned at the described second mass lower end contacts with second lower shoe, beeline between described second mass and first front side board is L8, beeline between described second mass and first back side panel is L9, described (L8+L9)＜L7; Beeline between described second mass and first left plate is L10, and the beeline between described second mass and first right plate is L11, described (L10+L11)＜L7.
Above-mentioned is a kind of for the drill pipe protector that absorbs the drilling rod impact shock; it is characterized in that: described the 3rd housing be shaped as hollow cylinder; the shape of described big mass and little mass is sphere; the quantity of described little mass is to be at least two; beeline between described little mass and the 3rd housing upper bottom surface is L12; beeline between adjacent two described little masses is L13, described L12＞L13.
Above-mentioned a kind of drill pipe protector for absorption drilling rod impact shock, it is characterized in that: the quantity of the described second axial bump leveller is four, four described second axial bump levellers are symmetrical arranged.
Above-mentioned is a kind of for the drill pipe protector that absorbs the drilling rod impact shock, and it is characterized in that: described first viscous fluid, second viscous fluid and the 3rd viscous fluid are silicone oil, mercury or mineral oil.
Above-mentioned is a kind of for the drill pipe protector that absorbs the drilling rod impact shock; it is characterized in that: the volume of described first viscous fluid is to place 85% of residual volume behind first mass in the described cavity; the volume of described second viscous fluid is to place 85% of residual volume behind second mass and the flexural spring plate in second housing, and the volume of described the 3rd viscous fluid is to place 85% of residual volume behind big mass and the little mass in the 3rd housing.
The utility model compared with prior art has the following advantages:
1, the utility model is simple in structure, reasonable in design, utilizes the comprehensive function of energy by collision and viscous fluid absorbing power consumption to realize passive vibration damping to drilling rod and drill bit, good damping result, damping efficiency height simultaneously.
2, the utility model use is easy to operate, adopts pin to be connected on drilling rod and top connection during use, and drill bit adopts pin to be connected and can to use with lower contact.
3, the utility model can effectively solve the undesirable problem of available technology adopting Passive Control mode, and can reduce the vibration that drilling rod produces fast and effectively.
4, be installed between drilling rod and the drill bit owing to the utility model drill pipe protector; therefore; can realize the transmission of moment of torsion between drilling rod and the drill bit by this protector; in the course of the work; the vibrational energy part that bit cutting produces can be transferred on the mass of drill pipe protector; make mass move, mass and inner walls bump, and realize collision power consumption fast.In addition, viscous fluid in the casing can produce under the vibration of casing and rock, also can play endergonic effect, and drive motion of viscous in mass motion and the collision process, produce power consumes, viscous fluid can absorb noise and the shock wave that collision produces simultaneously, and under multiple action, the Oscillation Amplitude that makes drill bit be delivered on the drilling rod is decayed fast.
5, the utility model good damping result, the relevant device that can effectively protect the drilling rod that is connected on the drill pipe protector and drill bit and be connected with drilling rod, in the application life of improving drilling rod, drill bit and equipment, use cost is low simultaneously, applied range.
6, the utility model need not outside any energy resource supply, so use cost is low.
Below by drawings and Examples, the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of first kind of specific embodiment of the utility model.
Fig. 2 is the annexation schematic diagram of casing in first kind of specific embodiment of the utility model, circumferential bump leveller, the first axial bump leveller and the second axial bump leveller.
Fig. 3 is the structural representation of circumferential bump leveller in first kind of specific embodiment of the utility model.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is the structural representation of the first axial bump leveller in first kind of specific embodiment of the utility model.
Vertical view after Fig. 6 removes second upper plate for Fig. 5 and is positioned at the flexural spring plate of second mass upper end.
Fig. 7 is the structural representation of the second axial bump leveller in first kind of specific embodiment of the utility model.
Fig. 8 removes vertical view behind the 3rd housing upper bottom surface for Fig. 7.
Fig. 9 is the structural representation of second kind of specific embodiment of the utility model.
Figure 10 is the annexation schematic diagram of casing in second kind of specific embodiment of the utility model, circumferential bump leveller, the first axial bump leveller and the second axial bump leveller.
Figure 11 is the structural representation of circumferential bump leveller in second kind of specific embodiment of the utility model.
Figure 12 is the B-B sectional view of Figure 11.
Description of reference numerals:
1-top connection; 2-casing; 3-lower contact;
4-circumferentially bump levellers; 4-11-first upper plate; 4-12-first lower shoe;
4-13-outer panel; 4-14-interior plate; 4-15-side seal board;
4-2-first mass; 4-3-dividing plate; 4-4-first viscous fluid;
5-the first axial bump leveller; 5-11-first front side board; 5-12-first back side panel;
5-13-first left plate; 5-14-first right plate; 5-15-second upper plate;
5-16-second lower shoe; 5-2-second mass; 5-3-flexural spring plate;
5-4-second viscous fluid; 6-the second axial bump leveller; 6-1-the 3rd housing;
6-2-little mass; 6-3-big mass; 6-4-the 3rd viscous fluid.
The specific embodiment
Extremely shown in Figure 8 as Fig. 1, a kind of for the drill pipe protector that absorbs the drilling rod impact shock, by shock-absorbing means, top connection 1 and lower contact 3 are formed, described shock-absorbing means comprises casing 2, described top connection 1 is fixed on the upper end of casing 2, described lower contact 3 is fixed on the lower end of casing 2, the inside of described casing 2 is along circumferentially being provided with for absorbing the circumferential bump leveller 4 that drilling rod work produces twisting vibration, the inside of described casing 2 and be arranged in circumferential bump leveller 4 inboards and be provided with for absorbing the first axial bump leveller 5 and the second axial bump leveller 6 that drilling rod work produces extensional vibration, described circumferential bump leveller 4 comprises first housing of fixedlying connected with casing 2 inwalls and evenly is fixed on first enclosure interior and first housing is divided into the polylith dividing plate 4-3 of a plurality of cavitys, the inside of each described cavity is provided with the first mass 4-2, be filled with the first viscous fluid 4-4 in the described cavity, the volume of the described first viscous fluid 4-4 is to place 80%～90% of residual volume behind the first mass 4-2 in the described cavity; The described first axial bump leveller 5 is arranged on the inside center position of casing 2, the described first axial bump leveller 5 comprises second housing of fixedlying connected with casing 2 inwalls and is arranged on the second mass 5-2 of second enclosure interior, all fixedly there is flexural spring plate 5-3 at the two ends up and down of the described second mass 5-2, be filled with the second viscous fluid 5-4 in described second housing, the volume of the described second viscous fluid 5-4 is to place 80%～90% of residual volume behind the second mass 5-2 and the flexural spring plate 5-3 in second housing; The described second axial bump leveller 6 is arranged between circumferential bump leveller 4 and the first axial bump leveller 5, big mass 6-3 and little mass 6-2 that the described second axial bump leveller 6 comprises the 3rd housing 6-1 of fixedlying connected with casing 2 inwalls and is arranged on the 3rd housing 6-1 inside, be filled with the 3rd viscous fluid 6-4 in described the 3rd housing 6-1, the volume of described the 3rd viscous fluid 6-4 is to place 80%～90% of residual volume behind big mass 6-3 and the little mass 6-2 in the 3rd housing 6-1.In the present embodiment, the volume of the described first viscous fluid 4-4 is to place 80%～90% of residual volume behind the first mass 4-2 in the described cavity, the volume of the described second viscous fluid 5-4 is to place 80%～90% of residual volume behind the second mass 5-2 and the flexural spring plate 5-3 in second housing, the volume of described the 3rd viscous fluid 6-4 is to place 80%～90% of residual volume behind big mass 6-3 and the little mass 6-2 in the 3rd housing 6-1, mainly contain the reason of two aspects: the one, viscous fluid is during less than lowest percentage, because spatial volume is bigger than normal, therefore gas flow is more, make more gas sneak in the viscous fluid, reduced the power consumption effect of viscous fluid, and then the collision effect between viscous fluid and the mass is weakened, the power consumption effect reduces; The 2nd, the viscous fluid volume is during greater than the highest percentage, because spatial volume is on the low side, so can produces between viscous fluid and the mass and rocks, and the energy that causes viscous fluid to consume reduces, and influences shock attenuation result.
As shown in Figure 3 and Figure 4, described first housing is by the first upper plate 4-11 that is connected, the first lower shoe 4-12, outer panel 4-13, interior plate 4-14 and side seal board 4-15 form, the quantity of described side seal board 4-15 is two, described dividing plate 4-3 and the first upper plate 4-11, the first lower shoe 4-12, outer panel 4-13 is all fixedlyed connected with the inwall of interior plate 4-14, all gapped between the described first mass 4-2 and outer panel 4-13 and the interior plate 4-14, the described first mass 4-2 is shaped as sphere, beeline between the described first mass 4-2 and the first upper plate 4-11 is L1, beeline between the described first mass 4-2 and the first lower shoe 4-12 is L2, be L3 at the described first mass 4-2 of rear and front end and the beeline between the side seal board 4-15 in the one side, be L4 at the described first mass 4-2 of rear and front end and the beeline between the dividing plate 4-3 at its opposite side, described (L1+L2)＜(L3+L4); Be L5 at the described first mass 4-2 in centre position and the beeline between the dividing plate 4-3 in the one side, be L6 at the described first mass 4-2 in centre position and the beeline between the dividing plate 4-3 at its opposite side, described (L1+L2)＜(L5+L6).
To shown in Figure 4, in the present embodiment, the shape of cross section of described casing 2 is round rectangle as Fig. 2, and the water in being convenient to hole flows downward; The shape of cross section of described first housing is fan annular, matches with the axial shape of casing 2.
As shown in Figure 2, the quantity of described circumferential bump leveller 4 is two, and two described circumferential bump levellers 4 are symmetrical set.
As shown in Figure 5 and Figure 6, described second housing be shaped as hollow square, described second housing is by the first front side board 5-11 that is connected, the first back side panel 5-12, the first left plate 5-13, the first right plate 5-14, the second upper plate 5-15 and the second lower shoe 5-16 form, being shaped as of the described second mass 5-2 is cylindrical, flexural spring plate 5-3 on the described second mass 5-2 and the beeline between the second upper plate 5-15 are L7, the flexural spring plate 5-3 that is positioned at the described second mass 5-2 lower end contacts with the second lower shoe 5-16, beeline between the described second mass 5-2 and the first front side board 5-11 is L8, beeline between the described second mass 5-2 and the first back side panel 5-12 is L9, described (L8+L9)＜L7; Beeline between the described second mass 5-2 and the first left plate 5-13 is L10, and the beeline between the described second mass 5-2 and the first right plate 5-14 is L11, described (L10+L11)＜L7.
As shown in Figure 7 and Figure 8, described the 3rd housing 6-1 is shaped as hollow cylinder, the shape of described big mass 6-3 and little mass 6-2 is sphere, the quantity of described little mass 6-2 is to be at least two, beeline between described little mass 6-2 and the 3rd housing 6-1 upper bottom surface is L12, beeline between adjacent two described little mass 6-2 is L13, described L12＞L13.
As shown in Figure 2, the quantity of the described second axial bump leveller 6 is four, and four described second axial bump levellers 6 are symmetrical arranged, and can improve axial shock attenuation result.
In the present embodiment, the described first viscous fluid 4-4, the second viscous fluid 5-4 and the 3rd viscous fluid 6-4 are silicone oil, mercury or mineral oil.
In the present embodiment, preferably, the volume of the described first viscous fluid 4-4 is to place 85% of residual volume behind the first mass 4-2 in the described cavity, the volume of the described second viscous fluid 5-4 is to place 85% of residual volume behind the second mass 5-2 and the flexural spring plate 5-3 in second housing, and the volume of described the 3rd viscous fluid 6-4 is to place 85% of residual volume behind big mass 6-3 and the little mass 6-2 in the 3rd housing 6-1.
The operating principle of present embodiment is: during use, adopt pin to be connected with drilling rod top connection 1, lower contact 3 is adopted pin to be connected with drill bit and is got final product.When drilling rod was worked, the moment of torsion on the drilling rod was delivered on the drill bit through drill pipe protector, by the shear action of drill bit realization to ground.In working angles; because the different generation vibrations of the inhomogeneous and earth formation material of cutting force; if there is not drill pipe protector; the vibration meeting is delivered on the drilling rod by drill bit; and owing to drilling rod is connected with equipment by the unit head linkage; therefore the equipment that makes vibrates, and has reduced the application life of equipment like this, and the equipment that makes damages easily.And by the present embodiment drill pipe protector, make the vibration on the drill bit be delivered on the drill pipe protector, the mass of the circumferential bump leveller 4 in the drill pipe protector, the first axial bump leveller 5 and the second axial bump leveller 6 and viscous fluid produce motion, between mass and the viscous fluid and the effect of bumping between mass and the inner walls, realize collision power consumption fast, rock the power consumption effect by viscous liquid simultaneously, make vibrational energy be converted into heat energy and dissipate; Because viscous fluid has certain damping action, therefore can effectively reduce vibration amplitude, and can eliminate the secondary dither of generation.In the said process, if what produce is twisting vibration, then mainly be to realize vibration damping by circumferential bump leveller 4, the first axial bump leveller 5 and the second axial bump leveller 6 a little less than the power consumption effect that this side up some; If the vibration that produces is axial vibration, then mainly is to realize vibration damping by the first axial bump leveller 5 and the second axial bump leveller 6, circumferential bump leveller 4 a little less than the power consumption effect that this side up some.In a word; make the vibration amplitude that vibrates the equipment that is delivered to drilling rod and is connected with drilling rod all reduce by drill pipe protector; thereby effectively protect drilling rod and relevant device, make it be subjected to the vibration effect and produce destructiveness and reduce greatly, guarantee the application life of drilling rod and equipment.
As Fig. 9 to shown in Figure 12, present embodiment as different from Example 1: the shape of cross section of described casing 2 is rectangle, described first housing be shaped as rectangle.In the present embodiment, the structure of remainder, annexation and operating principle are all identical with embodiment 1.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every any simple modification, change and equivalent structure of above embodiment being done according to the utility model technical spirit changes, and all still belongs in the protection domain of technical solutions of the utility model.
Claims (10)
1. drill pipe protector that be used for to absorb the drilling rod impact shock, it is characterized in that: by shock-absorbing means, top connection (1) and lower contact (3) are formed, described shock-absorbing means comprises casing (2), described top connection (1) is fixed on the upper end of casing (2), described lower contact (3) is fixed on the lower end of casing (2), the inside of described casing (2) is along circumferentially being provided with for absorbing the circumferential bump leveller (4) that drilling rod work produces twisting vibration, the inside of described casing (2) and be arranged in circumferential bump leveller (4) inboard and be provided with for absorbing the first axial bump leveller (5) and the second axial bump leveller (6) that drilling rod work produces extensional vibration, described circumferential bump leveller (4) comprises first housing of fixedlying connected with casing (2) inwall and evenly is fixed on first enclosure interior and first housing is divided into the polylith dividing plate (4-3) of a plurality of cavitys, the inside of each described cavity is provided with first mass (4-2), be filled with first viscous fluid (4-4) in the described cavity, the volume of described first viscous fluid (4-4) is to place 80%～90% of first mass (4-2) back residual volume in the described cavity; The described first axial bump leveller (5) is arranged on the inside center position of casing (2), the described first axial bump leveller (5) comprises second housing of fixedlying connected with casing (2) inwall and is arranged on second mass (5-2) of second enclosure interior, all fixedly there is flexural spring plate (5-3) at the two ends up and down of described second mass (5-2), be filled with second viscous fluid (5-4) in described second housing, the volume of described second viscous fluid (5-4) is to place 80%～90% of second mass (5-2) and flexural spring plate (5-3) back residual volume in second housing; The described second axial bump leveller (6) is arranged between circumferential bump leveller (4) and the first axial bump leveller (5), the described second axial bump leveller (6) comprises the 3rd housing (6-1) of fixedlying connected with casing (2) inwall and is arranged on the 3rd housing (6-1) inner big mass (6-3) and little mass (6-2), be filled with the 3rd viscous fluid (6-4) in described the 3rd housing (6-1), the volume of described the 3rd viscous fluid (6-4) is to place 80%～90% of big mass (6-3) and little mass (6-2) back residual volume in the 3rd housing (6-1).
2. described a kind of for the drill pipe protector that absorbs the drilling rod impact shock according to claim 1, it is characterized in that: described first housing is by first upper plate (4-11) that is connected, first lower shoe (4-12), outer panel (4-13), interior plate (4-14) and side seal board (4-15) are formed, the quantity of described side seal board (4-15) is two, described dividing plate (4-3) and first upper plate (4-11), first lower shoe (4-12), outer panel (4-13) is all fixedlyed connected with the inwall of interior plate (4-14), all gapped between described first mass (4-2) and outer panel (4-13) and the interior plate (4-14), described first mass (4-2) be shaped as sphere, beeline between described first mass (4-2) and first upper plate (4-11) is L1, beeline between described first mass (4-2) and first lower shoe (4-12) is L2, the beeline that is positioned at described first mass (4-2) of rear and front end and is positioned between the side seal board (4-15) of one side is L3, the beeline that is positioned at described first mass (4-2) of rear and front end and is positioned between the dividing plate (4-3) of its opposite side is L4, described (L1+L2)＜(L3+L4); The beeline that is positioned at described first mass (4-2) in centre position and is positioned between the dividing plate (4-3) of one side is L5, the beeline that is positioned at described first mass (4-2) in centre position and is positioned between the dividing plate (4-3) of its opposite side is L6, described (L1+L2)＜(L5+L6).
3. according to claim 1 or 2 described a kind of drill pipe protectors for absorption drilling rod impact shock, it is characterized in that: the shape of cross section of described casing (2) is round rectangle, and the shape of cross section of described first housing is the fan annular.
4. according to claim 1 or 2 described a kind of it is characterized in that: the shape of cross section of described casing (2) is rectangle for the drill pipe protectors that absorb the drilling rod impact shock, described first housing be shaped as rectangle.
5. according to claim 1 or 2 described a kind of drill pipe protectors for absorption drilling rod impact shock, it is characterized in that: the quantity of described circumferential bump leveller (4) is two, and two described circumferential bump levellers (4) are symmetrical set.
6. according to claim 1 or 2 described a kind of drill pipe protectors for absorption drilling rod impact shock, it is characterized in that: described second housing be shaped as hollow square, described second housing is by first front side board (5-11) that is connected, first back side panel (5-12), first left plate (5-13), first right plate (5-14), second upper plate (5-15) and second lower shoe (5-16) are formed, being shaped as of described second mass (5-2) is cylindrical, being positioned at the flexural spring plate (5-3) of described second mass (5-2) upper end and the beeline between second upper plate (5-15) is L7, the flexural spring plate (5-3) that is positioned at described second mass (5-2) lower end contacts with second lower shoe (5-16), beeline between described second mass (5-2) and first front side board (5-11) is L8, beeline between described second mass (5-2) and first back side panel (5-12) is L9, described (L8+L9)＜L7; Beeline between described second mass (5-2) and first left plate (5-13) is L10, and the beeline between described second mass (5-2) and first right plate (5-14) is L11, described (L10+L11)＜L7.
7. according to claim 1 or 2 described a kind of drill pipe protectors for absorption drilling rod impact shock; it is characterized in that: described the 3rd housing (6-1) be shaped as hollow cylinder; the shape of described big mass (6-3) and little mass (6-2) is sphere; the quantity of described little mass (6-2) is to be at least two; beeline between described little mass (6-2) and the 3rd housing (6-1) upper bottom surface is L12; beeline between adjacent two described little masses (6-2) is L13, described L12＞L13.
8. according to claim 1 or 2 described a kind of drill pipe protectors for absorption drilling rod impact shock, it is characterized in that: the quantity of the described second axial bump leveller (6) is four, and four described second axial bump levellers (6) are symmetrical arranged.
9. according to claim 1 or 2 described a kind of drill pipe protectors for absorption drilling rod impact shock, it is characterized in that: described first viscous fluid (4-4), second viscous fluid (5-4) and the 3rd viscous fluid (6-4) are silicone oil, mercury or mineral oil.
10. according to claim 1 or 2 described a kind of drill pipe protectors for absorption drilling rod impact shock; it is characterized in that: the volume of described first viscous fluid (4-4) is to place 85% of first mass (4-2) back residual volume in the described cavity; the volume of described second viscous fluid (5-4) is to place 85% of second mass (5-2) and flexural spring plate (5-3) back residual volume in second housing, and the volume of described the 3rd viscous fluid (6-4) is to place 85% of big mass (6-3) and little mass (6-2) back residual volume in the 3rd housing (6-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320127167 CN203114194U (en) | 2013-03-19 | 2013-03-19 | Drill stem protector used for absorbing drill stem impact vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320127167 CN203114194U (en) | 2013-03-19 | 2013-03-19 | Drill stem protector used for absorbing drill stem impact vibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114194U true CN203114194U (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320127167 Withdrawn - After Issue CN203114194U (en) | 2013-03-19 | 2013-03-19 | Drill stem protector used for absorbing drill stem impact vibration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147696A (en) * | 2013-03-19 | 2013-06-12 | 长安大学 | Drill stem protector for absorbing drill stem impact shock |
| WO2019148358A1 (en) * | 2018-01-31 | 2019-08-08 | 成都科盛石油科技有限公司 | Segmented protection device for drill pipe |
| WO2019148357A1 (en) * | 2018-01-31 | 2019-08-08 | 成都科盛石油科技有限公司 | Assistive apparatus for oil exploitation |
| CN111022560A (en) * | 2019-12-04 | 2020-04-17 | 上海大学 | Annular vibration damper for inhibiting vibration of elastic structure |
-
2013
- 2013-03-19 CN CN 201320127167 patent/CN203114194U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147696A (en) * | 2013-03-19 | 2013-06-12 | 长安大学 | Drill stem protector for absorbing drill stem impact shock |
| CN103147696B (en) * | 2013-03-19 | 2014-12-17 | 长安大学 | Drill stem protector for absorbing drill stem impact shock |
| WO2019148358A1 (en) * | 2018-01-31 | 2019-08-08 | 成都科盛石油科技有限公司 | Segmented protection device for drill pipe |
| WO2019148357A1 (en) * | 2018-01-31 | 2019-08-08 | 成都科盛石油科技有限公司 | Assistive apparatus for oil exploitation |
| CN111022560A (en) * | 2019-12-04 | 2020-04-17 | 上海大学 | Annular vibration damper for inhibiting vibration of elastic structure |
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Granted publication date: 20130807 Effective date of abandoning: 20141217 |
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| RGAV | Abandon patent right to avoid regrant |