CN104499946B - Umbrella-type reaming bit - Google Patents

Umbrella-type reaming bit Download PDF

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Publication number
CN104499946B
CN104499946B CN201410805893.7A CN201410805893A CN104499946B CN 104499946 B CN104499946 B CN 104499946B CN 201410805893 A CN201410805893 A CN 201410805893A CN 104499946 B CN104499946 B CN 104499946B
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CN
China
Prior art keywords
water vat
water
mandrel
tongue
umbrella
Prior art date
Application number
CN201410805893.7A
Other languages
Chinese (zh)
Other versions
CN104499946A (en
Inventor
陈凤钢
戴斌安
倪万兵
程熙
陈月华
Original Assignee
江苏谷登工程机械装备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201410805893.7A priority Critical patent/CN104499946B/en
Publication of CN104499946A publication Critical patent/CN104499946A/en
Application granted granted Critical
Publication of CN104499946B publication Critical patent/CN104499946B/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure

Abstract

The present invention relates to a kind of umbrella-type reaming bit, including water vat body, water vat body is combined with hollow mandrel, water vat body is provided with and limits the stopping means that mandrel moves axially;The two ends of mandrel are connected to nipple and drill bit, and water vat body is provided with the coupling around nipple;Being hinged with at least two reamer arm on the outer wall of water vat body, each reamer arm is hinged with drill bit by connecting rod respectively;Water vat bar it is sliding combined with in water vat body;Forming water cavity between one end and water vat body and mandrel that water vat bar is corresponding with drill bit, water cavity is connected with coupling by the water channel being arranged in water vat body;It is provided with water vat bar back-moving spring between one end and water vat body that water vat bar is corresponding with nipple;The unlocking mechanism opening stopping means it is provided with on water vat bar.The present invention integrates drilling function and hole expansion function, has converging angles scope of compromise big, the equal power of stress, and structural strength is big, and the feature of simple in construction can meet the requirement of various boring, reaming.

Description

Umbrella-type reaming bit

Technical field

The present invention relates to the static pile press for construction building site, specifically a kind of at static press piling For the umbrella-type reaming bit of pile sinking reaming during machine piling.

Background technology

Static pile press refers to a kind of piling machinery construction equipment utilizing static pressure that stake is pressed into stratum, and it is fitted For Soft Soil Layer piling engineering, as underground railway, harbour, bridge, reservoir power station, offshore production platform and The stake work construction of defence engineering etc..

During traditional static pile press construction, the downward static press piling of direct pile holding, not hole, reaming, it lacks Point be: to sand bed, hard stratum, differentiation layer and some be difficult to piling soil layer piling difficulty, even having Under a little geological conditions, traditional static pile press cannot be carried out piling work.

Summary of the invention

The present invention is directed to the problems referred to above, it is provided that a kind of umbrella-type reaming bit, this reaming bit is at static pile press Can carry out holing and ream operation by stake endoporus during piling difficulty, expand the range of static pile press.

According to technical scheme: a kind of umbrella-type reaming bit, including the water with internal closed space Cylinder body, in described water vat body, slipper seal is combined with the hollow mandrel running through described closing space, described water vat It is provided with on body and limits the stopping means that described mandrel moves axially;In the two ends of described mandrel are connected to Joint and drill bit, described nipple is connected with the hollow hole offered respectively on described drill bit with described mandrel Through hole;It is provided with the coupling around described nipple on described water vat body;On the outer wall of described water vat body Being hinged with the reamer arm that at least two circumference is uniform, each described reamer arm is respectively by connecting rod and described drill bit It is hinged;

It is sliding combined with, in the closing space of described water vat body, the water vat bar being sleeved on outside described mandrel;Described water Water cavity, described water is formed between one end and described water vat body and described mandrel that cylinder rod is corresponding with described drill bit Chamber is connected with described coupling by the water channel being arranged in described water vat body;Described water vat bar is interior with described It is provided with water vat bar back-moving spring between one end and described water vat body that joint is corresponding;Set on described water vat bar It is equipped with the unlocking mechanism opened described stopping means and drive described mandrel to move axially.

It is disposed with brill tooth in described reamer arm and/or described connecting rod.

Described water vat body includes rear casing and the front casing being mutually permanently connected, and the rear end of described rear casing connects Having sealing lid, the front end of described front casing connects end cap.

Described stopping means includes tongue back-moving spring and tongue, and described water vat body is provided with spacing room, institute State tongue can be arranged on described spacing indoor with radially sliding, the outward opening of described spacing room is fixed with cover plate, Described tongue back-moving spring is arranged between described cover plate and described tongue.

Described spacing room has two, is arranged symmetrically on described rear casing.

It is provided with gathering sill on described tongue, described rear casing is provided with the spiral shell matched with described gathering sill Nail.

The footpath of described tongue is provided with the blind hole accommodating described tongue back-moving spring to the back-end.

The radial front end of described tongue is provided with the arcuate groove matched with described mandrel outer surface.

The radial front end of described tongue is provided with the first groove, described mandrel is provided with and described first groove The projection matched.

Described unlocking mechanism includes being arranged on the second inner inclined-plane of described water vat bar and the second groove, described tongue The radial front end of head is provided with the first inclined-plane, described second inclined-plane and described first slopes which match, and described the Two grooves match with the projection on described mandrel.

The method have technical effect that: the present invention integrates drilling function and hole expansion function, has contraction Angle scope of compromise is big, the equal power of stress, and structural strength is big, the feature of simple in construction, can meet various boring, The requirement of reaming.The static pile press of the present invention is installed, can be carried out by stake endoporus when piling difficulty Boring and ream operation, expand the range of static pile press.

Accompanying drawing explanation

Fig. 1 is the structural representation front view of the present invention.

Fig. 2 is the vertical view cutaway drawing of Fig. 1.

Fig. 3 is the schematic diagram that the reamer arm in Fig. 2 is in open configuration.

Fig. 4 is the perspective view of the present invention.

Fig. 5 is the structural representation that the present invention is in use state.

Fig. 6 is the structural representation of the rear casing in the present invention.

Fig. 7 is the A-A sectional view in Fig. 6.

Fig. 8 is the structural representation front view of the tongue in the present invention.

Fig. 9 is the left view of Fig. 8.

Figure 10 is the top view of Fig. 8.

Figure 11 is the axonometric chart of Fig. 8.

Figure 12 is the structural representation front view of the mandrel in the present invention.

Figure 13 is the left view of Figure 12.

Figure 14 is the structural representation front view of the water vat bar in the present invention.

Figure 15 is the left view of Figure 14.

Figure 16 is the axonometric chart of Figure 14.

In Fig. 1~Figure 16, including coupling 1, nipple 2, seal lid 3, rear casing 4, tongue reset Spring 5, cover plate 6, tongue 7, water vat bar 8, water vat bar back-moving spring 9, mandrel 10, front casing 11, Reamer arm 12, end cap 13, connecting rod 14, drill bit 15, brill tooth 16, water cavity 17, water channel 18, water vat body 19, space 20, stopping means 21, through hole 22, double-wall drill pipe 23, unit head 24, mud water channel are closed 25, spacing room 26, blind hole 27, gathering sill the 28, first groove the 29, first inclined-plane 30, arcuate groove 31, Protruding 32, second inclined-plane the 33, second groove 34, screw 35, water vat control water channel 36 etc..

Detailed description of the invention

Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with the accompanying drawings and The present invention is further detailed explanation for detailed description of the invention.

As shown in Figure 1 to 4, the present invention is a kind of umbrella-type reaming bit, including water vat body 19 and drill bit 15.

Water vat body 19 has internal closed space 20.Water vat body 19 includes the rear casing 4 being mutually permanently connected And front casing 11, the rear end of rear casing 4 connects sealing lid 3, and the front end of front casing 11 connects end cap 13. Closing space 20 is surrounded by sealing lid 3, rear casing 4, front casing 11 and end cap 13.The rear end of rear casing 4 Connect and have coupling 1.

In water vat body 19, slipper seal is combined with and runs through its hollow mandrel 10 closing space 20, hollow mandrel The two ends of 10 are each passed through end cap 13 and seal lid 3.The two ends of mandrel 10 be connected to nipple 2 and Drill bit 15, nipple 2 is positioned at rear end, and drill bit 15 is positioned at front end;Nipple 2 is opened on drill bit 15 respectively It is provided with the through hole 22 that the hollow hole with mandrel 10 is connected.Coupling 1 on water vat body 19 connects in being looped around 2 around.

At least two (in the present embodiment being three) week it is hinged with on the outer wall of the front casing 11 of water vat body 19 To uniform reamer arm 12, each reamer arm 12 is hinged with drill bit 15 by connecting rod 14 respectively.Reamer arm 12 and/or connecting rod 14 on be disposed with brill tooth 16.

It is sliding combined with, in the closing space 20 of water vat body 19, the water vat bar 8 being sleeved on outside mandrel 10.Water vat Water cavity 17, water cavity 17 is formed between one end and water vat body 19 and mandrel 10 that bar 8 is corresponding with drill bit 15 It is connected with coupling 1 by the water channel 18 being arranged in water vat body 19;Water vat bar 8 and nipple 2 phase It is provided with water vat bar back-moving spring 9 between corresponding one end and water vat body 19.

It is provided with on water vat body 19 and limits the stopping means 21 that mandrel 10 moves axially;Arrange on water vat bar 8 Have and open stopping means 21 and unlocking mechanism that band moving mandrel 10 moves axially.

Stopping means 21 includes tongue back-moving spring 5 and tongue 7.Spacing room 26 it is provided with on water vat body 19, As shown in Figure 6, Figure 7, spacing room 26 has two, is arranged symmetrically on rear casing 4, corresponding spacing dress Put 21 and have two sets.

Tongue 7 can be arranged in spacing room 26 with radially sliding.As shown in Fig. 8~Figure 11, tongue 7 sets It is equipped with gathering sill 28, as shown in Figure 6, Figure 7, rear casing 4 is provided with the spiral shell matched with gathering sill 28 Nail 35.Tongue 7 is slided and moving radially along rear casing 4 on screw 35 by its gathering sill 28.

Being fixed with cover plate 6 on the outward opening of spacing room 26, tongue back-moving spring 5 is arranged on cover plate 6 and tongue Between 7.As shown in Fig. 8~Figure 11, the footpath of tongue 7 is additionally provided with receiving tongue back-moving spring 5 to the back-end Blind hole 27.

As shown in Fig. 8~Figure 11, the radial front end of tongue 7 is additionally provided with and matches with mandrel 10 outer surface Arcuate groove 31.The effect arranging arcuate groove 31 is the contact area increasing tongue 7 with mandrel 10, thus increases Big frictional force.The radial front end of tongue 7 is additionally provided with the first groove 29, mandrel 10 is provided with recessed with first The projection 32 that groove 29 matches.Protruding 32 combine with the first groove 29, play more preferable limitation locking effect Really.

As shown in Figure 12~Figure 16, unlocking mechanism include being arranged on second inclined-plane 33 of water vat bar 8 the inner with Second groove 34, the radial front end of tongue 7 is provided with the first inclined-plane 30, the second inclined-plane 33 and the first inclined-plane 30 match, and the second groove 34 matches with the projection 32 on mandrel 10.

The operation principle of the present invention is as follows with work process:

During as it is shown in figure 5, the present invention works, it is connected with double-wall drill pipe 23 by button-type, outside reaming bit Joint 1 is connected with the outer wall of double-wall drill pipe 23, the nipple 2 of reaming bit and the inwall of double-wall drill pipe 23 It is connected.Double-wall drill pipe 23 is connected to unit head 24 times, and the water vat in unit head 24 controls water channel 36 and passes through The outer wall of double-wall drill pipe 23 is connected with the water channel 18 of reaming bit;Mud water channel 25 in unit head 24 By the hollow hole on the inwall of double-wall drill pipe 23 and the mandrel 10 of reaming bit and the through hole 22 on drill bit 15 It is connected.

Reaming bit shown in Fig. 5 is in the state that reamer arm 12 is not turned on, and under this state, water vat controls water There is no water in road 36, i.e. there is no pressure.At this moment the projection 32 on mandrel 10 can be by the on tongue 7 One groove 29 blocks, and mandrel 10 cannot move up, so reamer arm 12 cannot be opened.

When reaming bit opened by needs, controlling water channel 36 with water pump to water vat and add water, water passes through water vat body 19 Interior water channel 18 flow in the water cavity 17 bottom water vat bar 8, when the pressure in water cavity 17 rises to 1MPa, Water vat bar 8 overcomes the resistance of water vat bar back-moving spring 9 to move up, the second inclined-plane 33 on water vat bar 8 with The first inclined-plane 30 on tongue 7 contacts, and makes tongue 7 outwards move back;After water vat bar 8 rises to a certain degree, The second groove 34 on water vat bar 8 contacts with the projection 32 on mandrel 10, is driven by mandrel 10 and upwards transports Dynamic, mandrel 10 drives drill bit 15 to move upward simultaneously, makes reamer arm 12 open by connecting rod 14, thus Open reaming bit, and reaming bit flare up umbrella, as shown in Figure 3.

When needing after drill bit completes reaming state to pack up reamer arm 12, only water vat need to be controlled water channel 36 Hydraulic pressure eliminate (the most not toward water channel pump water), now there is no water in the water cavity 17 bottom water vat bar 8 After pressure, water vat bar 8 can move downward under the effect of water vat bar back-moving spring 9, therefore mandrel 10 also can be Moving downward, thus drive reamer arm 12 to pack up, at this moment reaming bit the most just becomes deflated state.

It is big that the present invention has converging angles scope of compromise, the equal power of stress, and structural strength is big, the spy of simple in construction Point, can meet the requirement of various boring, reaming, can complete first aperture when arrival requires the degree of depth after, then bore greatly The requirement in hole.The static pile press of the present invention is installed, can be entered by stake endoporus when piling difficulty and bore Hole and ream operation, make traditional static press piling function apply and be difficult to the occasion of piling, expand static pressure The range of stake machine.

Above the present invention has been carried out the most detailed description with certain particularity.General in art Logical it is to be understood by the skilled artisans that what description in embodiment was merely exemplary, true without departing from the present invention Make being changed on the premise of real spirit and scope and all should belong to protection scope of the present invention.Institute of the present invention Claimed scope be defined by described claims rather than above-mentioned by embodiment Description limits.

Claims (10)

1. a umbrella-type reaming bit, is characterized in that: include the water vat body with internal closed space (20) (19), in described water vat body (19), slipper seal is combined with the hollow core running through described closing space (20) Axle (10), described water vat body (19) is provided with and limits the stopping means that described mandrel (10) moves axially (21);The two ends of described mandrel (10) are connected to nipple (2) and drill bit (15), described in connect It is logical that head (2) is connected with the hollow hole offered respectively on described drill bit (15) with described mandrel (10) Hole (22);The coupling (1) around described nipple (2) it is provided with on described water vat body (19);Institute State and on the outer wall of water vat body (19), be hinged with the reamer arm (12) that at least two circumference is uniform, each described expansion Hole arm (12) is hinged with described drill bit (15) by connecting rod (14) respectively;
It is sliding combined with in the closing space (20) of described water vat body (19) and is sleeved on described mandrel (10) Outer water vat bar (8);Described water vat bar (8) one end corresponding with described drill bit (15) and described water vat Forming water cavity (17) between body (19) and described mandrel (10), described water cavity (17) is by being arranged on The water channel (18) stated in water vat body (19) is connected with described coupling (1);Described water vat bar (8) Water vat bar reset bullet it is provided with between one end corresponding with described nipple (2) and described water vat body (19) Spring (9);It is provided with on described water vat bar (8) and opens described stopping means (21) and drive described mandrel (10) The unlocking mechanism moved axially.
2., according to the umbrella-type reaming bit described in claim 1, it is characterized in that: described reamer arm (12) and / or described connecting rod (14) on be disposed with brill tooth (16).
3. according to the umbrella-type reaming bit described in claim 1, it is characterized in that: described water vat body (19) is wrapped Including the rear casing (4) and front casing (11) being mutually permanently connected, the rear end of described rear casing (4) connects to be had Sealing lid (3), the front end of described front casing (11) connects end cap (13).
4. according to the umbrella-type reaming bit described in claim 3, it is characterized in that: described stopping means (21) Including tongue back-moving spring (5) and tongue (7), described water vat body (19) is provided with spacing room (26), Described tongue (7) can be arranged in described spacing room (26) with radially sliding, described spacing room (26) Being fixed with cover plate (6) on outward opening, described tongue back-moving spring (5) is arranged on described cover plate (6) and institute State between tongue (7).
5. according to the umbrella-type reaming bit described in claim 4, it is characterized in that: described spacing room (26) has Two, it is arranged symmetrically on described rear casing (4).
6. according to the umbrella-type reaming bit described in claim 4, it is characterized in that: described tongue sets on (7) It is equipped with gathering sill (28), described rear casing (4) is provided with the spiral shell matched with described gathering sill (28) Nail.
7. according to the umbrella-type reaming bit described in claim 4, it is characterized in that: the footpath of described tongue (7) It is provided with the blind hole (27) accommodating described tongue back-moving spring (5) to the back-end.
8. according to the umbrella-type reaming bit described in claim 4, it is characterized in that: the footpath of described tongue (7) Forward end is provided with the arcuate groove (31) matched with described mandrel (10) outer surface.
9. according to the umbrella-type reaming bit described in claim 4, it is characterized in that: the footpath of described tongue (7) Forward end is provided with the first groove (29), described mandrel (10) is provided with and described first groove (29) The projection (32) matched.
10. according to the umbrella-type reaming bit described in claim 9, it is characterized in that: described unlocking mechanism includes It is arranged on inner the second inclined-plane (33) of described water vat bar (8) and the second groove (34), described tongue (7) Radial front end be provided with the first inclined-plane (30), described second inclined-plane (33) and described first inclined-plane (30) Matching, described second groove (34) is matched with the projection (32) on described mandrel (10).
CN201410805893.7A 2014-12-22 2014-12-22 Umbrella-type reaming bit CN104499946B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410805893.7A CN104499946B (en) 2014-12-22 2014-12-22 Umbrella-type reaming bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410805893.7A CN104499946B (en) 2014-12-22 2014-12-22 Umbrella-type reaming bit

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CN104499946A CN104499946A (en) 2015-04-08
CN104499946B true CN104499946B (en) 2016-09-14

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104499945A (en) * 2014-12-22 2015-04-08 江苏谷登工程机械装备有限公司 Static pile driver and reaming and pile sinking machine combination
CN104863515A (en) * 2015-06-11 2015-08-26 鞍山紫竹工程设备制造有限公司 Rock breaking drill bit applied to hydraulic multifunctional pile driver
CN105781424A (en) * 2016-05-03 2016-07-20 周兆弟 Variable-diameter drilling bit mechanism for drill stem
CN109296312B (en) * 2018-09-20 2020-07-03 广西中化明达勘察设计有限公司 Rapid drilling method of sampling hole for geological exploration
CN109630022B (en) * 2019-02-19 2019-09-06 江苏汉威重工科技有限公司 A kind of composite drill bit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893675A (en) * 1988-11-21 1990-01-16 Uvon Skipper Section milling tool
GB0009834D0 (en) * 2000-04-25 2000-06-07 Brit Bit Limited Expandable bit
RU2234584C1 (en) * 2003-04-11 2004-08-20 Открытое акционерное общество "Татнефть" им. В.Д. Шашина Well reamer
CN2653113Y (en) * 2003-06-25 2004-11-03 胜利石油管理局钻井工艺研究院 Hydraulic expansion type PDC hole expander
CN103967418B (en) * 2014-05-05 2017-01-18 天地科技股份有限公司 Reamer bit and anchoring method for anchor rod

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