CN105298395A - Non-excavation hole reamer - Google Patents
Non-excavation hole reamer Download PDFInfo
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- CN105298395A CN105298395A CN201510812870.3A CN201510812870A CN105298395A CN 105298395 A CN105298395 A CN 105298395A CN 201510812870 A CN201510812870 A CN 201510812870A CN 105298395 A CN105298395 A CN 105298395A
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- break
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- guiding
- reamer
- work plane
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Abstract
The invention discloses a non-excavation hole reamer. A hole reamer body comprises a guiding pouring part, the surface of the guiding pouring part is provided with a hole reaming guiding working surface and a pouring working surface, and the interior of the guiding pouring part is provided with a pouring channel communicated with pouring holes formed in the surface of the guiding pouring part; the hole reaming guiding working surface and the pouring working surface are both provided with multiple scattering points in the axial direction of the hole reamer body, the scattering points are formed in the left-handed rotation direction and in the right-handed rotation direction to form clockwise spiral line segments rotating in the clockwise direction and anticlockwise spiral line segments rotating in the anticlockwise direction, and the clockwise spiral line segments and the anticlockwise spiral line segments are arranged in a staggered mode. According to the non-excavation hole reamer, when hole reaming is performed, the non-excavation hole reamer is not prone to be influenced by outside force to enable a hole to be reamed obliquely; the hole wall is reinforced, and therefore the hole is not prone to collapse.
Description
Technical field
The present invention relates to a kind of boring tool technical field, more particularly, it relates to a kind of no-dig technique reamer.
Background technology
Along with the development of fluid media (medium) Cemented filling cause, creeping into of river crossing, lake, highway, railway even the conveyance conduit hole on mountain range is progressively increasing with counterboring operation, and the use of passing through reamer is frequent all the more.
In no-dig technique horizontal directional drilling pipe laying, to soft formation bore expanded hole generally use boring
Reamer: the joint of reamer left end adopts with borer drill rod and is threaded, has hydrophthalmia to be communicated with reaming body water route in joint.Reaming body is made up of baffle plate and shell and inner casing, and on its shell, welding-on has some cutting elements, and has hydrophthalmia.Joint and mandrel, engaging lug coaxial line are welded to connect, and whole reaming body also adopts welding to be connected with shafting components, and uses gusset reinforcement.
The shape of this kind of reamer body commonly uses taper, spindle or bullet-headed, and the cutting element mainly through it is installed carrys out rotating-milling and expands hole wall.Their ubiquity shortcomings are: 1. reamer self does not possess guidance capability, no-dig technique horizontal directional drilling pipe laying serpentine track boring or drilling track bending section carry out reaming work, can produce and inclined problem is expanded in hole; 2. reamer self only have cut broken hole wall make boring expansion capability, and do not possess protection hole wall retaining capacity.
In order to a technical solution difficult problem, prior art notification number is that CN101701507B discloses a kind of reamer with extruding retaining wall function, it is characterized in that the front end of joint and mandrel and the front end of reamer housing are connected, there is support plate the rear end of reamer housing, reamer housing and mandrel are connected, polyhedron on the center of support and mandrel is axially dynamic joins merga pass bolt or/and alignment pin is fixed on mandrel, the spoke of support or wheel disc and support plate are hinged with some roller shaft two ends respectively, roller shaft coordinates with roller is dynamic, core back-end is connected with engaging lug, roller shaft two ends are connected with roller by bearing, there is gland, the inwall of the center of support is regular hexahedron, with the regular hexahedron of its dynamic its profiling of mandrel Duan Weiyu coordinated, locknut is passed through in one end of support, the other end is fixed on mandrel by positioning sleeve and alignment pin, the hole of the hole of roller shaft right-hand member and the first hinged bearing is by the first hinge, first hinged bearing and support plate are connected, the hole of the hole of roller shaft left end and the second hinged bearing is hinged by the second bearing pin, second hinged bearing has the dovetail groove of dovetail slide block and support to be slidably connected.But the reamer of this structure also easily can produce skew by the impact of external force; Also have general to the consolidation effect of hole wall.
Summary of the invention
An object of the present invention is to provide a kind of no-dig technique reamer, and hole is expanded partially by its impact not being subject to external force when reaming.
Another kind of object of the present invention is Reinforcing hole wall, and hole is not easily caved in.
For achieving the above object, the invention provides following technical scheme: a kind of no-dig technique reamer, comprise reamer body, it is characterized in that, described reamer body comprises guiding casting portion, and described guiding casting portion is provided with reaming guiding work plane and cast work plane and inside is provided with the cast passage communicated with the plug hole on its surface on the surface; Described reaming guiding work plane and cast work plane are all provided with some break-up point along the axis of reamer body, this some break-up point is arranged and the counter-clockwise helical line segment being formed in right handed clock wise spirals line segment and rotating in counter clockwise direction along left hand direction and clockwise direction respectively, and clock wise spirals line segment and counter-clockwise helical line segment are crisscross arranged.
Existing reamer adopts be unidirectional screw thread, if it is soft soil layer that this reamer runs in punching digging process, another side is hard soil layer; It is when rotating reaming, the resistance that the resistance that hard soil layer is subject to can be subject to than soft soil layer greatly, the large resistance of the guide end of reamer understand to slight drag while run, thus cause reamer sideslip;
Adopt the technical program, the guiding casting portion of this reamer has staggered dextrorotation to helical segment and the counter-clockwise helical line segment that counterclockwise rotates; If it runs into while be soft soil layer, another side is the situation of hard soil layer; Reamer has clockwise direction revolving force and counter clockwise direction revolving force when rotated; The drag effect of hard soil layer changes into the power of two strands of different directions in the power that guide end produces, just both cancel out each other; Therefore, ensure that the unaffected continuation of reamer keeps original track to advance.
Further restriction, also includes and smooths mud, the reinforcing of Reinforcing hole wall smooths portion; The diameter that described reinforcing smooths portion is greater than the diameter of guiding casting portion.
Existing reamer, when reaming is reinforced, is that mud is directly thrown on hole wall; Such 1, mud easily falls down from upper wall surface, and 2, mud solidifies rear hole wall surface out-of-flatness and can be formed protruding (obstacle) one by one, brings inconvenience to later construction.
Adopt the technical program, the front end of reamer is guiding casting portion, and rear end reinforces to smooth portion; Guiding casting portion is thrown to mud on hole wall on reaming limit, limit; Reinforce the portion of smoothing be one than the bigger-sized cylinder of guiding casting portion, it with guiding casting portion rotate advance time, active force can be applied to the mud of hole wall, mud is bonded on hole wall more closely, simultaneously the mud block protruded to polishing; Make whole hole wall firmer and smooth.
Further restriction, between break-up point and break-up point, interval is arranged, and spacing is between the two 1-6 times of the length of break-up point.
Existing unidirectional complete helical segment guiding earth, not easily broken up.Reason is the earth of underground is that reamer is when reaming, and earth is divided into a rule, is guided away by helix containing a lot of moisture (earth is very muddy); Because helix is complete, earth is also complete in spiral motion process;
The present invention is so arranged, and the bidirectional screw line segment of reamer becomes desultory helical segment; Earth is with in spiral motion process, and a part of earth can branch away and can be thrown out of from interval, is conducive to breaing up earth, construction being convenient to after.
Further restriction, the interval between every adjacent break-up point and the track departing from the helix be made up of break-up point is provided with transition break-up point.
Setting like this, earth, in separated breakdown process, is gone out from interval; In order to make the better effects if of breaing up, arrange transition break-up point at interval, transition break-up point plays the effect being again separated, breaing up.And if on the position that it is arranged and break-up point is parallel (not being in interval), that does not just have the effect being again separated, breaing up.
Further restriction, described break-up point is elongated; Two ends being positioned at the break-up point on cast work plane are all arc-shaped.
Setting like this, reaming guiding work plane needs cutting, is separated, and the strip break-up point therefore on its face has corner angle; And the break-up point of pouring into a mould on work plane mainly plays guiding function, therefore, it has been designed to two arc-shaped.
Further restriction, in described transition break-up point, and is provided with arc convex portion along on the direction that reamer body rotary mud is entrained into.
Setting like this, arc convex portion is the main forced section of transition break-up point, and design is to expand lifting surface area like this, makes it not easy to wear; Adopt arc must play shunting action in order to better simultaneously.
Further restriction, described cast passage includes narrow section and wider section, and described narrow section is positioned at the region of reaming guiding work plane, and described wider section is positioned at the region of pouring into a mould work plane.
Further restriction, the aperture of the plug hole on described reaming guiding work plane is less than the aperture of the plug hole on cast work plane.
Setting like this, the slurry channel of hole guiding work plane has been the lubrication to dry soil layer, and therefore, it does not need large discharge capacity, adopts narrow section passage and small-bore plug hole; The slurry channel of cast work plane will spray mud, Reinforcing hole wall to hole wall; Therefore, need large discharge capacity, adopt wider section of passage and heavy caliber plug hole.
Further restriction, described reinforcing smooths portion and is wholely set with guiding casting portion, and the external surface that this reinforcing smooths portion is shiny surface.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the structural representation of dextrorotation to the helical segment with counterclockwise rotation direction of the break-up point formation of the embodiment of the present invention;
Fig. 3 is the structural representation of the transition break-up point of the embodiment of the present invention;
Fig. 4 is the structural representation that the mud of the embodiment of the present invention is again broken up through transition break-up point, shunted.
Detailed description of the invention
Referring to figs. 1 through Fig. 4, the embodiment of the present invention is described further.
With reference to figure 1, a kind of no-dig technique reamer, its reamer body 1 is divided into guiding casting portion 2 and reinforcing to smooth portion 3.Guiding casting portion 2 smooths with reinforcing that portion 3 is integrally manufactured to be formed; The front end of guiding casting portion 2 is bullet, and its external surface is reaming guiding work plane 4; The rear end of guiding casting portion 2 is cylinder, and its external surface is cast work plane 5.Reinforcing smooths portion 3 and is fixed in the rearward end of guiding casting portion 2.
The inside of guiding casting portion 2 is provided with cast passage 8; Cast passage 8 communicates with the plug hole 9 on reaming guiding work plane 4 and cast work plane 5.Wherein, the aperture of the plug hole 9 of reaming guiding work plane 4 is less than the aperture of the plug hole 9 on cast work plane 5.Cast passage 8 is divided into narrow section 81 and wider section 82, and narrow section 81 is positioned at the region of reaming guiding work plane 4, and wider section 82 is positioned at the region of pouring into a mould work plane 5.Being designed to such structure, is that it does not need large discharge capacity, adopts narrow section 81 passage and small-bore plug hole 9 because the slurry channel of hole guiding work plane has been the lubrication to dry soil layer; And the slurry channel pouring into a mould work plane 5 will spray mud, Reinforcing hole wall to hole wall; Need large discharge capacity, adopt wider section of 82 passages and heavy caliber plug hole 9.
With reference to figure 2, reaming guiding work plane 4 and cast work plane 5 are all provided with the break-up point 6 of some strips along the axis of reamer body 1.This some break-up point 6 is arranged and the counter-clockwise helical line segment b being formed in right handed clock wise spirals line segment a and rotating in counter clockwise direction along left hand direction and clockwise direction respectively, and clock wise spirals line segment a and counter-clockwise helical line segment b is crisscross arranged.
The guiding casting portion 2 of this reamer has staggered dextrorotation to helical segment and the counter-clockwise helical line segment b that counterclockwise rotates; If it runs into while be soft soil layer, another side is the situation of hard soil layer; Reamer has clockwise direction revolving force and counter clockwise direction revolving force when rotated; The drag effect of hard soil layer changes into the power of two strands of different directions in the power that guide end produces, just both cancel out each other; Therefore, ensure that the unaffected continuation of reamer keeps original track to advance.
Wherein, reaming guiding work plane 4 needs cutting, is separated, and the strip break-up point 6 therefore on its face has corner angle.And the break-up point 6 of pouring into a mould on work plane 5 mainly plays guiding function, therefore, it has been designed to two arc-shaped.
Wherein, between break-up point 6 and break-up point 6, interval is arranged, and spacing is between the two 1-6 times of the length of break-up point 6.Break-up point 6 project organization is to allow the bidirectional screw line segment of reamer become desultory helical segment; Earth is with in spiral motion process, and a part of earth can branch away and can be thrown out of from interval, is conducive to breaing up earth, construction being convenient to after.
Further improve break up, separating effect.Interval between every adjacent break-up point 6 and track departing from the helix be made up of break-up point 6 is provided with transition break-up point 10.See Fig. 3, in transition break-up point 10, and be provided with arc convex portion 101 along on the direction that reamer body 1 rotary mud is entrained into.Arc convex portion 101 is main forced sections of transition break-up point 10.With reference to figure 4, design is to expand lifting surface area like this, makes it not easy to wear; Adopt arc must play shunting action in order to better simultaneously.
It is for smoothing mud, Reinforcing hole wall that reinforcing smooths portion 3.The external surface that this reinforcing smooths portion 3 is shiny surface.Reinforce the diameter that the diameter smoothing portion 3 is greater than guiding casting portion 2.The guiding casting portion 2 of reamer is thrown to mud on hole wall on reaming limit, limit; Reinforce smooth portion 3 be one than the bigger-sized cylinder of guiding casting portion 2, it with guiding casting portion 2 rotate advance time, active force can be applied to the mud of hole wall, mud is bonded on hole wall more closely, simultaneously the mud block protruded to polishing; Make whole hole wall firmer and smooth.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a no-dig technique reamer, comprise reamer body, it is characterized in that, described reamer body comprises guiding casting portion, and described guiding casting portion is provided with reaming guiding work plane and cast work plane and inside is provided with the cast passage communicated with the plug hole on its surface on the surface; Described reaming guiding work plane and cast work plane are all provided with some break-up point along the axis of reamer body, this some break-up point is arranged and the counter-clockwise helical line segment being formed in right handed clock wise spirals line segment and rotating in counter clockwise direction along left hand direction and clockwise direction respectively, and clock wise spirals line segment and counter-clockwise helical line segment are crisscross arranged.
2. no-dig technique reamer according to claim 1, is characterized in that, also includes and smooths mud, the reinforcing of Reinforcing hole wall smooths portion; The diameter that described reinforcing smooths portion is greater than the diameter of guiding casting portion.
3. no-dig technique reamer according to claim 1, is characterized in that, between break-up point and break-up point, interval is arranged, and spacing is between the two 1-6 times of the length of break-up point.
4. no-dig technique reamer according to claim 3, is characterized in that, the interval between every adjacent break-up point and the track departing from the helix be made up of break-up point is provided with transition break-up point.
5. no-dig technique reamer according to claim 3, is characterized in that, described break-up point is elongated; Two ends being positioned at the break-up point on cast work plane are all arc-shaped.
6. no-dig technique reamer according to claim 4, is characterized in that, in described transition break-up point, and is provided with arc convex portion along on the direction that reamer body rotary mud is entrained into.
7. the no-dig technique reamer according to claim 1 or 5 or 6, is characterized in that, described cast passage includes narrow section and wider section, and described narrow section is positioned at the region of reaming guiding work plane, and described wider section is positioned at the region of pouring into a mould work plane.
8. no-dig technique reamer according to claim 7, is characterized in that, the aperture of the plug hole on described reaming guiding work plane is less than the aperture of the plug hole on cast work plane.
9. no-dig technique reamer according to claim 8, is characterized in that, described reinforcing smooths portion and is wholely set with guiding casting portion, and the external surface that this reinforcing smooths portion is shiny surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812870.3A CN105298395B (en) | 2015-11-21 | 2015-11-21 | No-dig technique reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812870.3A CN105298395B (en) | 2015-11-21 | 2015-11-21 | No-dig technique reamer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105298395A true CN105298395A (en) | 2016-02-03 |
| CN105298395B CN105298395B (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510812870.3A Active CN105298395B (en) | 2015-11-21 | 2015-11-21 | No-dig technique reamer |
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| Country | Link |
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| CN (1) | CN105298395B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2009742A (en) * | 1933-05-15 | 1935-07-30 | Chicago Pneumatic Tool Co | Face bit |
| US5687807A (en) * | 1995-04-26 | 1997-11-18 | Vermeer Manufacturing Company | Cutter head for trenchless boring machine |
| CN1683743A (en) * | 2004-04-16 | 2005-10-19 | 刘怀仁 | Multiple head screw drilling and milling machine |
| CN101701507A (en) * | 2009-10-30 | 2010-05-05 | 上海佳友市政建筑有限公司 | Underreamer with extrusion and wall-expansion functions |
| CN202064834U (en) * | 2011-05-26 | 2011-12-07 | 无锡市钻通工程机械有限公司 | Gravity balanced back reamer for non-excavation pipe laying drill |
| CN203129959U (en) * | 2013-03-22 | 2013-08-14 | 四川圆通建设有限公司 | Fast reamer for trenchless construction |
| CN203925293U (en) * | 2014-06-30 | 2014-11-05 | 连云港前沿重工机械有限公司 | A kind of non-excavating horizontal directional drilling machine combination drill tool |
| CN204457441U (en) * | 2015-01-27 | 2015-07-08 | 张海平 | A kind of two-way reamer for no-dig technique horizontal directional drill |
| CN205259950U (en) * | 2015-11-21 | 2016-05-25 | 北京通成工业设备有限公司 | Non - excavation enlarger |
-
2015
- 2015-11-21 CN CN201510812870.3A patent/CN105298395B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2009742A (en) * | 1933-05-15 | 1935-07-30 | Chicago Pneumatic Tool Co | Face bit |
| US5687807A (en) * | 1995-04-26 | 1997-11-18 | Vermeer Manufacturing Company | Cutter head for trenchless boring machine |
| CN1683743A (en) * | 2004-04-16 | 2005-10-19 | 刘怀仁 | Multiple head screw drilling and milling machine |
| CN101701507A (en) * | 2009-10-30 | 2010-05-05 | 上海佳友市政建筑有限公司 | Underreamer with extrusion and wall-expansion functions |
| CN202064834U (en) * | 2011-05-26 | 2011-12-07 | 无锡市钻通工程机械有限公司 | Gravity balanced back reamer for non-excavation pipe laying drill |
| CN203129959U (en) * | 2013-03-22 | 2013-08-14 | 四川圆通建设有限公司 | Fast reamer for trenchless construction |
| CN203925293U (en) * | 2014-06-30 | 2014-11-05 | 连云港前沿重工机械有限公司 | A kind of non-excavating horizontal directional drilling machine combination drill tool |
| CN204457441U (en) * | 2015-01-27 | 2015-07-08 | 张海平 | A kind of two-way reamer for no-dig technique horizontal directional drill |
| CN205259950U (en) * | 2015-11-21 | 2016-05-25 | 北京通成工业设备有限公司 | Non - excavation enlarger |
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| Publication number | Publication date |
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| CN105298395B (en) | 2017-09-15 |
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Effective date of registration: 20211126 Address after: Room 101, 3 / F, building 7, 13 Jingsheng middle street, Tongzhou District, Beijing Patentee after: BEIJING DONGFANG BOXUN TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 100000 2-836, No. 1093, Luyuan South Street, Tongzhou District, Beijing Patentee before: BEIJING TONGCHENG INDUSTRIAL EQUIPMENT Co.,Ltd. |
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