CN202090845U - Automatic pin shedding inner core drilling rod for spiral digging machine - Google Patents
Automatic pin shedding inner core drilling rod for spiral digging machine Download PDFInfo
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- CN202090845U CN202090845U CN2011200330107U CN201120033010U CN202090845U CN 202090845 U CN202090845 U CN 202090845U CN 2011200330107 U CN2011200330107 U CN 2011200330107U CN 201120033010 U CN201120033010 U CN 201120033010U CN 202090845 U CN202090845 U CN 202090845U
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Abstract
The utility model relates to an automatic pin shedding inner core drilling rod for a spiral digging machine, comprising a drilling rod and a square head which are connected together. The drilling rod is hollow for storing high pressure air; an air valve is provided on the side wall at the top in the drilling rod; a pin shedding device and an air-flow distributing valve are provided in the square head, and the residual space is exhausted to be a vacuum area by an air exhaust core provided on the wall of the square head; the pin shedding device is a hollow body prepared from the drilling rod square head, two cylinder sleeves with one side wall as the pedestal and with different radii and the same circle center are positioned in the hollow body, the cylinder sleeve with a larger radius is the outer cylinder sleeve, and the cylinder sleeve with a smaller radius is the inner cylinder sleeve; and the air-flow distributing valve comprises a cylinder sleeve with a variable diameter and a piston with a variable diameter, the large cylinder sleeve of the air-flow distributing valve is provided with a large piston, and the air inlet space formed by the top rod on the screwed plug cover between the large piston and the screwed plug cover is communicated with an aerodynamic space. In the utility model, the hollow characteristic of the drilling rod is utilized, and automatic pin shedding of a spiral digging machine is ingeniously realized.
Description
Technical field
The present invention relates to a kind of Spiral digging machine drilling equipment, particularly a kind of Spiral digging machine drilling rod is out of stock novel inner core drilling rod automatically.
Background technology
The invention of " the automatic out of stock inner core drilling rod of a kind of Spiral digging machine " of being reported on January 1st, 2011 at me, through careful consideration, this kind drilling rod can be realized out of stock automatically under the shallow bore hole state, if under the deep hole state, because hole depth, the pressure of mud is big, make drilling rod square toes inner high voltage gas be difficult to leak, cause the inner out of stock device of drilling rod square toes to reach out of stock purpose by the acting of gases at high pressure pressure leak process, at the present invention of this reason for be more conducive between drilling rod and the drill bit under the deep hole state out of stock, set up vacuum area in the drilling rod internal system, make gases at high pressure to the vacuum area pressure release, and impel out of stock device motion acting, realize out of stock.
Summary of the invention
The same ingenious aerodynamic principle that utilizes of the present invention, design a kind of simple out of stock device and vacuum area in the square toes of the interior joint drilling rod of Spiral digging machine drilling rod system, gases at high pressure by the pre-storage source that is used as power, allow gases at high pressure to the vacuum area pressure release, in the process of pressure release, promote out of stock device acting, in the pulling bearing pin produces in the drilling rod square toes to displacement and out of stock automatically.
The present invention is realized by following technical scheme:
1, a kind of Spiral digging machine is with automatic out of stock inner core drilling rod, connect to form by the drilling rod body of rod and square toes, it is characterized in that: drilling rod body of rod hollow is in order to the deposit gases at high pressure, the top sidewall is settled air valve in the drilling rod body of rod, the Air Valve Control bar upwards exposes on the drilling rod top, establish out of stock device in the square toes, the distribution of air flow valve, the vacuum area of remaining space for aspirating by the gaseous core of bleeding that is provided with on the square toes wall body, out of stock device is that the drilling rod square toes are made hollow body, in hollow body inside, with a sidewall is base, horizontal radius difference, two concentric cylinder sleeves of place circle, long radius be outer cylinder sheath, small radius be inner cylinder liner, the outer cylinder sheath inner wall smooth, the inner cylinder liner inside and outside wall is all smooth, side opening in outer cylinder sheath one end, the outside is whole connecting-type with the square toes wall body, the outer cylinder sheath other end then is by the square toes wall body with the inner cylinder liner outside and is tightly connected, the inner cylinder liner two open ends, the column type piston is installed in the inner cylinder liner is the combination of sealed sliding ejector half, the drum type brake piston is installed between inner cylinder liner and the outer cylinder sheath also is the combination of sealed sliding ejector half, two pistons are fixed on one heart on the round steel plate base that equates with the outer cylinder sheath external diameter and form piston assembly, cylinder sleeve length and piston assembly length are provided with gap, the openend of outer cylinder sheath is used for the piston assembly installing port and is had the closing cap shutoff of inflating core, be the interior out of stock stroke zone of piston assembly pulling bearing pin between piston assembly base and the piston assembly installing port seal cover to displacement, charge into gases at high pressure by the inflation gaseous core on the seal cover in this zone, the drum type brake piston tip with in, constituting the aerodynamic force space between the outer cylinder sheath blind end uses, the aerodynamic force space is communicated with top air valve in the drilling rod body of rod by pipeline, constituting pin shaft hole between the export-oriented openend of column type piston tip and inner cylinder liner in the inner cylinder liner uses, bearing pin in column type piston tip and the pin shaft hole is connection status, the distribution of air flow valve is to be made of reducing cylinder sleeve and reducing piston in combination, establish by pipeline and the bleeder port of out of stock stroke regional connectivity and the bleeder port that is communicated with vacuum area its medium and small cylinder sleeve side, the perforate of little cylinder sleeve bottom cover is also passed through pipeline connection with out of stock stroke zone, side opening in the other end of little cylinder sleeve, the outside is reducing with big cylinder sleeve bottom cover and is connected, promptly two cylinder sleeves are concentric polyphone form, side opening is the piston installing port in the other end of big cylinder sleeve, the outside is fastened on the square toes wall body with square toes wall body integral body, the piston installing port seals with the plug lid of band push rod, settle two pistons that fuse with connecting rod in the little cylinder sleeve, when the connecting rod zone is concordant with bleeder port, the gases at high pressure in out of stock stroke zone lose heart to vacuum area by the distribution of air flow valve, when connecting rod and bleeder port stagger, then piston is with the bleeder port lateral seal, settle a big piston in the big cylinder sleeve of distribution of air flow valve, big piston is communicated with the aerodynamic force space by pipeline with the admission space that the push rod that covers by plug between plug covers enough becomes.
2, out of stock device is provided with two covers in the drilling rod square toes, and the out of stock device of two covers is the dislocation symmetric form and arranges that drilling rod can be connected with double-pin axle form with drill bit.
3, the drilling rod bearing pin is middle through hole bearing pin, bearing pin is connected with the column type piston of out of stock device with the major part screw rod by middle through hole.
The utility model basic ideas and principle are:
1, the drilling rod square toes is made the heavy wall hollow body, in hollow body inside, with a sidewall is base, two concentric cylinder sleeves of horizontal radius difference, place circle, long radius be outer cylinder sheath, small radius be inner cylinder liner, the outer cylinder sheath inner wall smooth, the inner cylinder liner inside and outside wall is all smooth, and outer cylinder sheath one end and square toes wall are the outer connecting-type of opening, the other end is sealing with inner cylinder liner by the square toes wall and is connected, and inner cylinder liner is two open ends then.The column type piston is installed in the inner cylinder liner is the combination of sealed sliding ejector half, the drum type brake piston is installed between inner cylinder liner and the outer cylinder sheath also is the combination of sealed sliding ejector half, two pistons are fixed on one heart on the round steel plate base that equates with the outer cylinder sheath external diameter and form piston assembly, cylinder sleeve length and piston assembly length are provided with certain gap, the openend of outer cylinder sheath is the closing cap shutoff of piston assembly installing port, be the interior out of stock stroke zone of piston assembly pulling bearing pin between piston assembly base and the piston assembly installing port seal cover to displacement, constituting pin shaft hole between the export-oriented openend of column type piston tip and inner cylinder liner in the inner cylinder liner uses, the drum type brake piston tip with in, constitute the aerodynamic force space between the outer cylinder sheath blind end and establish screw thread, be connected with piston in case shotpin axle extroversion is out of stock by through-hole type bearing pin in the major part screw rod handle with column type piston tip center.
2, utilize the hollow features of drilling rod, in these hollow cylinder storage gases at high pressure source that is used as power, give and carry the pipeline of gases at high pressure to be located at the drilling rod in-core described in 1 in the aerodynamic force space, and be connected with the air valve of upper end in the drilling rod, the control lever of air valve upwards exposes on the drilling rod top.
3, rig is in drilling process, because bearing pin is shaken, the factors such as pressure of mud, it is introversive out of stock that bearing pin is wanted, therefore also inflation pressurization in advance in out of stock stroke zone, make the piston assembly extroversion stressed, guarantee that bearing pin is relatively stable and move not, boring can normally be carried out.
4, taking off in the bearing pin is the emergency preplan of accidents such as hole bury drills, bit freezing to occur collapsing, really need bearing pin interior when out of stock, need piston assembly pulling bearing pin introversive movement with out of stock, because above-mentioned 3 is described, existing gases at high pressure exist in the out of stock stroke zone, for ease of losing heart, also are provided with vacuum area in the drilling rod square toes, gases at high pressure can promote the piston assembly displacement to the process of vacuum area pressure release, and the pulling bearing pin is interior to out of stock.
5, for realizing that above-mentioned gases at high pressure to the vacuum area pressure release, establish the distribution of air flow valve in square toes, i.e. top air valve in opening drilling rod, the distribution of air flow valve can distribute the air-flow trend automatically in the square toes, makes gases at high pressure to the vacuum area pressure release.
Description of drawings,
Fig. 1 is structural representation of the present invention and fundamental diagram;
Fig. 2 is square toes part A-A central cross-sectional view of Fig. 1;
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing:
1, show as Fig. 1: the present invention is in the drilling rod square toes, and outer cylinder sheath 17 and inner cylinder liner 18 1 terminations are fixed on a side of square toes wall with one heart, in this termination, forms annular seal, the then export-oriented opening of inner cylinder liner 18 by the square toes wall between the inside and outside cylinder sleeve.The other end of outer cylinder sheath 17 is export-oriented open-type with the square toes wall and is connected, and constitutes the installing port of piston assembly 16.Because inner cylinder liner 18 is shorter than outer cylinder sheath 17, the other end of inner cylinder liner 18 is then at 17 li outside openings of outer cylinder sheath.Form piston assembly 16 on the circular steel plate base that column type piston 20 and drum type brake piston 19 are fixed on one heart with drum type brake piston 19 external diameters equate.Show among Fig. 1 that the length of piston assembly 16 length and inner cylinder liner 18 has certain gap, constitute aerodynamic force space 13 and pin shaft hole zone (bearing pin 14 positions) by this gap.Relative with piston assembly 16, the opposite side of outer cylinder sheath 17 is provided with seal cover 15 shutoff of piston assembly installing port.Middle through hole bearing pin is to be connected with column type piston 20 in case shotpin axle extroversion comes off with the major part screw rod when wearing the pin state.After piston assembly 16 was in place, the structure spacing of its base and seal cover 15 was to out of stock stroke zone 32 in the bearing pin.
2, the interior distribution of air flow valve of square toes is made of reducing cylinder sleeve 21 and reducing piston 24 among Fig. 1, out of stock stroke zone 32 is communicated with distribution of air flow valve bleeder port by the person in charge 25 that loses heart, the arm 27,28 that loses heart, and the export-oriented port of distribution of air flow valve seals with the plug 23 of band push rod.
3, fixedly mount air valve on the inwall of drilling rod top, this valve is made up of control lever 1, export-oriented packed-piston 2, lateral seal piston 4, piston brace rod 3, cylinder sleeve 5.Lateral seal piston 4 longitudinal holes, cylinder sleeve 5 side direction air vents 7 are communicated with pipeline 8, and air inlet port 6 is established in cylinder sleeve 5 bottoms.
Mechanics basis of the present invention:
1, the supposition drilling rod square toes outer bottom length of side is 26cm * 26cm, square toes side thickness 4cm, pin diameter 7cm, inside and outside cylinder sleeve wall thickness is 1cm, column type piston diameter 8cm, and then the drum type brake piston diameter is: 26cm-4cm * 2-1cm * 2=16cm, drum type brake piston wall place area is: ((16/2) * (16/2)) 3.14-(8+2)/2 * (8+2)/2 * 3.14 ≈ 123cm * cm, when this area effect air pressure was 0.7Mpa, then being stressed was 861 kilograms, and this is considerable data.
2, drilling rod length is by 16 meters, and hollow section amasss about 80 square centimeters, and then the volume 16 * 100 * 80 of gases at high pressure is 128000 cubic centimetres.Suppose 1 square centimeter in the interior cross section of wireway, the volume of standing is 1600 cubic centimetres in the wireway, suppose 5 centimetres of out of stock strokes, long 1 centimetre of aerodynamic force space, this spatial volume 123 * 6 is 738 cubic centimetres after out of stock, drilling rod inner high voltage gas becomes out of stock back 130338 cubic centimetres (128000+1600+738) by out of stock preceding 128000 square centimeters so, enlarge about 1.02 times, pressing equation of gaseous state P1 * V1=P2 * V2 under the equality of temperature calculates, internal memory air pressure is almost equivalent in the drilling rod transmits, and this is an important mechanics basis of the present invention.
3, take off in bearing pin is not in normal drilling process for guaranteeing, the square toes internal gas pressure is by air pressure P 〉=(S1 * (H * Nb+Pa)+(S2-S1) * Pa)/S2.Wherein S1 is the column type piston area, and S2 is the piston assembly floor space, and H is a drilling depth, and Nb is a mud balance, and Pa is an atmospheric pressure.
4, out of stock stroke zone and the contrast of vacuum area volume: know by above-mentioned 1, the cross section is 16 centimetres of 16 cm x in the square toes, as clear height in the square toes is 50 centimetres, then interior space is 12800 cubic centimetres, remove the cylinder sleeve volume: 8 cm x, 8 cm x, 3.14 * 16 cm x 2=3217 cubic centimetres, it is long-pending to remove the distribution of air flow valve body again: 3.14 * 16 centimetres=314 cubic centimetres of 2.5 cm x, 2.5 cm x, remaining 9269 cubic centimetres is vacuum space, out of stock stroke zone volume is 123 square centimeters * 5 cm x 2=1230 cubic centimetres, the out of stock stroke of vacuum area volume ratio zone volume big 7.54 times (9269/1230) illustrates this pressure release condition establishment.
The course of work of the present invention is as follows:
1, according to drilling depth, calculate to determine the stable safe air pressure of out of stock stroke zone 32 inner control piston assemblies 16 by above-mentioned 2, by being located at inflation gaseous core 31 inflation in out of stock stroke zone 32 on the piston assembly installing port seal cover 15, show by Fig. 1, give when inflating in the out of stock stroke zone 32, the disappointing person in charge 25 that air communication is crossed out of stock stroke zone 32 enters distribution of air flow valve seal forcing pipe 26, again and then enter and promote the push rod end place that piston 24 is moved to plug 23 in this valve, this moment the distribution of air flow valve piston position, the end pipeline 27 that will lose heart just, 28 lateral seal, be not connected state with vacuum area in the square toes, guaranteeing becomes independently high-pressure space in the out of stock stroke zone 32, keeps piston assembly 16 relatively stable.
2, inflate to drilling rod hollow body inner high voltage gas storehouse 10 by the high pressure gas storehouse air inlet core 12 that is located on the drilling rod wall body, before the inflation admission valve inner carrier pulling in aerodynamic force space is close to this air valve upper end wall, inflation pressurization then, by its bottom air inlet port 8 air inlets, the two-piston of extruding air valve upwards, export-oriented packed-piston 2 is close to the air valve upper end wall, reaches from movable sealing.Generally being forced into 0.7～1.0Mpa, can guaranteeing out of stock pressure, is again trouble free service air pressure.
3, by vacuum suction gaseous core 11, air in the vacuum area is extracted out, also air is discharged in the big cylinder sleeve part of the reducing cylinder sleeve of distribution of air flow valve simultaneously by pore 30, make the reducing piston when the valve piston direction is moved, not produce air resistance.
4, finish above-mentioned steps then drilling rod can come into operation.
5, if accident is when needing to take off in the bearing pin, then from the first segment drilling rod of the drilling rod system special sleeve that hangs in suitable for reading, winch to above-mentioned drilling rod top, the export-oriented packed-piston 2 and the lateral seal piston 4 of air valve are passed through weight control lever 1 to bottom offset, when lateral seal piston 4 stops to cylinder sleeve bottom diagram step place, export-oriented packed-piston 2 still plays export-oriented sealing function, lateral seal piston 4 is then removed the lateral seal effect, just (illustrate side opening 6 is provided with on air valve cylinder sleeve 5 connecting rod 3 between the two-piston with side opening 6, not on piston, only show among the figure that this hole is consistent with side opening 7 place height) and side opening 7 align, gases at high pressure are by side opening 6, side opening 7 enters pipeline 9, is delivered to aerodynamic force space 13 in the square toes.
6, after gases at high pressure enter aerodynamic force space 13, because aerodynamic force space 13 is communicated with by pipeline 22 (diagram) with the distribution of air flow valve, obviously, the big pressure that then produces of piston area is big, distribution of air flow valve piston 24 integral body are to the motion of valve piston direction and the bleeder port that the connecting rod zone is connected with pipeline 27,28 between illustrated two valve pistons is alignd, out of stock stroke zone 32 inner high voltage gases are discharged to vacuum area by pipeline 27,28, bleeder port 29, piston assembly 16 beginning displacements are taken off in the pulling bearing pin.
The invention solves three great technical barriers:
1) utilize the hollow body deposit gases at high pressure of inner core drilling rod, carry gases at high pressure to the aerodynamic force space by pipeline, gases at high pressure promote out of stock device acting when default vacuum area pressure release, solved the difficult problem of the out of stock application of force of drilling rod under the deep hole state.
2) started in the bearing pin to the out of stock thinking of displacement.
3) under the deep hole state with hanging in sleeve pipe weight Air Valve Control bar, open gas channel, realized the purpose of remote control under water.
More than 3 be key point of the present invention.
Claims (3)
1. a Spiral digging machine is with automatic out of stock inner core drilling rod, connect to form by the drilling rod body of rod and square toes, it is characterized in that: drilling rod body of rod hollow is in order to the deposit gases at high pressure, the top sidewall is settled air valve in the drilling rod body of rod, the Air Valve Control bar upwards exposes on the drilling rod top, establish out of stock device in the square toes, the distribution of air flow valve, the vacuum area of remaining space for aspirating by the gaseous core of bleeding that is provided with on the square toes wall body, out of stock device is that the drilling rod square toes are made hollow body, in hollow body inside, with a sidewall is base, horizontal radius difference, two concentric cylinder sleeves of place circle, long radius be outer cylinder sheath, small radius be inner cylinder liner, the outer cylinder sheath inner wall smooth, the inner cylinder liner inside and outside wall is all smooth, side opening in outer cylinder sheath one end, the outside is whole connecting-type with the square toes wall body, the outer cylinder sheath other end then is by the square toes wall body with the inner cylinder liner outside and is tightly connected, the inner cylinder liner two open ends, the column type piston is installed in the inner cylinder liner is the combination of sealed sliding ejector half, the drum type brake piston is installed between inner cylinder liner and the outer cylinder sheath also is the combination of sealed sliding ejector half, two pistons are fixed on one heart on the round steel plate base that equates with the outer cylinder sheath external diameter and form piston assembly, cylinder sleeve length and piston assembly length are provided with gap, the openend of outer cylinder sheath is used for the piston assembly installing port and is had the closing cap shutoff of inflating core, be the interior out of stock stroke zone of piston assembly pulling bearing pin between piston assembly base and the piston assembly installing port seal cover to displacement, charge into gases at high pressure by the inflation gaseous core on the seal cover in this zone, the drum type brake piston tip with in, constituting the aerodynamic force space between the outer cylinder sheath blind end uses, the aerodynamic force space is communicated with top air valve in the drilling rod body of rod by pipeline, constituting pin shaft hole between the export-oriented openend of column type piston tip and inner cylinder liner in the inner cylinder liner uses, bearing pin in column type piston tip and the pin shaft hole is connection status, the distribution of air flow valve is to be made of reducing cylinder sleeve and reducing piston in combination, establish by pipeline and the bleeder port of out of stock stroke regional connectivity and the bleeder port that is communicated with vacuum area its medium and small cylinder sleeve side, the perforate of little cylinder sleeve bottom cover is also passed through pipeline connection with out of stock stroke zone, side opening in the other end of little cylinder sleeve, the outside is reducing with big cylinder sleeve bottom cover and is connected, promptly two cylinder sleeves are concentric polyphone form, side opening is the piston installing port in the other end of big cylinder sleeve, the outside is fastened on the square toes wall body with square toes wall body integral body, the piston installing port seals with the plug lid of band push rod, settle two pistons that fuse with connecting rod in the little cylinder sleeve, when the connecting rod zone is concordant with bleeder port, the gases at high pressure in out of stock stroke zone lose heart to vacuum area by the distribution of air flow valve, when connecting rod and bleeder port stagger, then piston is with the bleeder port lateral seal, settle a big piston in the big cylinder sleeve of distribution of air flow valve, big piston is communicated with the aerodynamic force space by pipeline with the admission space that the push rod that covers by plug between plug covers enough becomes.
2. a kind of Spiral digging machine according to claim 1 is characterized in that with automatic out of stock inner core drilling rod: out of stock device is provided with two covers in the drilling rod square toes, and the out of stock device of two covers is the dislocation symmetric form and arranges that drilling rod can be connected with double-pin axle form with drill bit.
3. a kind of Spiral digging machine according to claim 1 and 2 is with automatic out of stock inner core drilling rod, and it is characterized in that: the drilling rod bearing pin is middle through hole bearing pin, bearing pin is connected with the column type piston of out of stock device with the major part screw rod by middle through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200330107U CN202090845U (en) | 2011-01-23 | 2011-01-23 | Automatic pin shedding inner core drilling rod for spiral digging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200330107U CN202090845U (en) | 2011-01-23 | 2011-01-23 | Automatic pin shedding inner core drilling rod for spiral digging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202090845U true CN202090845U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200330107U Expired - Lifetime CN202090845U (en) | 2011-01-23 | 2011-01-23 | Automatic pin shedding inner core drilling rod for spiral digging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202090845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162338A (en) * | 2011-01-23 | 2011-08-24 | 郭振国 | Automatic pin-ejection inner core drill rod for rotary drilling machine |
-
2011
- 2011-01-23 CN CN2011200330107U patent/CN202090845U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162338A (en) * | 2011-01-23 | 2011-08-24 | 郭振国 | Automatic pin-ejection inner core drill rod for rotary drilling machine |
| CN102162338B (en) * | 2011-01-23 | 2013-06-12 | 郭振国 | Automatic pin-ejection inner core drill rod for rotary drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111228 Effective date of abandoning: 20130612 |
|
| RGAV | Abandon patent right to avoid regrant |