CN201198743Y - Non-excavating drill power head floating mechanism - Google Patents
Non-excavating drill power head floating mechanism Download PDFInfo
- Publication number
- CN201198743Y CN201198743Y CNU2008201465792U CN200820146579U CN201198743Y CN 201198743 Y CN201198743 Y CN 201198743Y CN U2008201465792 U CNU2008201465792 U CN U2008201465792U CN 200820146579 U CN200820146579 U CN 200820146579U CN 201198743 Y CN201198743 Y CN 201198743Y
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- CN
- China
- Prior art keywords
- unit head
- thrust
- power head
- frame
- oil cylinder
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model provides a power head floating mechanism of a non-excavation driller, comprising a feeding frame and the power head arranged on the feeding frame. The feeding frame is provided with a slider. The power head is arranged on the slider, and can move along the slider. A thrust compensation oil cylinder is arranged between the power head and the feeding frame. The thrust compensation oil cylinder is connected with a hydraulic oil pump through an oil return pipe of a hydraulic system of the driller. The cylinder body thereof is fixed on the feeding frame, and a piston rod is connected with the power head. A pressure regulating valve is arranged on the oil return pipe between the hydraulic oil pump and the thrust compensation oil cylinder. The floating mechanism of the large-scaled non-excavation pipe-laying driller has simple structure design, is easy to be realized, has low cost, has low requirements to the machining accuracy and sealability of the parts, and is easy to be assembled. The compensation oil cylinder can provide a suitable thrust for the power head, can reduce the compressive force received by the screw thread when the screw thread of the drill stern is screwed off, can protect the screw thread, and can prolong the service life of the drill stern.
Description
[technical field]
The utility model relates to engineering machinery field, is specifically related to a kind of non-digging drill unit head relocation mechanism.
[background technology]
In the non-digging drill construction of engineering machinery field, the unit head of directional drilling trenchless pipelaying rig for the unloading drilling rod needs, all is provided with relocation mechanism.Unit head of the prior art is when its power spindle counter-rotating unloading drill rod thread, and along with unloading, external screw thread can withdraw from from the drilling rod internal thread.This moment, the relocation mechanism of unit head just began to work, and unit head is moved under the thrust of screw thread unloading backward, thereby internal and external threads is thrown off.Because the unit head quality of large type drill is very big, the power deficiency that screw thread retreats is so that unit head is unsteady, so it is telescopic that the dynamic head main spindle of large type drill mostly is spline, be about to the relocation mechanism design on dynamic head main spindle, realize by relatively moving of dynamic head main spindle upper spline axle.But this has also brought certain problem, because of the centre bore of dynamic head main spindle will pass through a large amount of mud, so relocation mechanism will have good sealing, therefore, dynamic head main spindle need be made of complex structure a plurality of parts, and need to guarantee higher assembly precision, processing is difficulty relatively, in use damages easily, produces the phenomenon of leaking mud.
[utility model content]
Technical problem to be solved in the utility model is, overcomes the defective of above-mentioned prior art, provides a kind of simple in structure, easy for installation, the large-scale trenchless pipelaying drill power head relocation mechanism that sealing requirements is low.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of non-digging drill unit head relocation mechanism comprises feeding frame and being located at the described unit head that feeds on the frame that described feeding frame is provided with a sliding part, unit head places on this sliding part, can move along this sliding part, at unit head and feed between the frame, be provided with a thrust-compensating oil cylinder.
Preferably, described sliding part is for being symmetricly set in described two slidiing pins that feed on the frame.
Preferably, described compensating cylinder cylinder body is fixed in and feeds on the frame, and its piston rod links to each other with described unit head.
Preferably, described compensating cylinder links to each other with hydraulic oil pump by the oil return pipe of drilling rig hydraulic system.
Further, also be provided with pressure-regulating valve on the return line between described hydraulic oil pump and the compensating cylinder.
Further, the thrust of described thrust-compensating oil cylinder is the 70-80% of unit head slip resistance.
Implement the non-digging drill of large-scale pipe laying of the present utility model; its relocation mechanism structure design is simple; realize easily; cost is low, and is low to the machining accuracy and the sealing requirements of part, and assembling easily; its compensating cylinder can provide a comparatively suitable thrust to unit head; the suffered extruding force of screw thread when so just having reduced the unloading drill rod thread, protection screw thread, the application life of prolongation drilling rod.
The utility model is described in further detail below in conjunction with drawings and Examples.
[description of drawings]
Fig. 1 is the utility model example structure schematic diagram.
In the diagram:
1-feeds frame; The 2-sliding part; The 3-compensating cylinder;
The 4-drilling rod; The 5-dynamic head main spindle; The 6-unit head;
The 7-pressure-regulating valve; The 8-hydraulic oil pump; The 9-bearing support.
[specific embodiment]
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model provides a kind of large-scale trenchless pipelaying drill power head relocation mechanism, as shown in Figure 1, it comprises that one feeds frame 1 and is located at the described unit head 6 that feeds on the frame 1, and power spindle 5 rear ends are by the gear drive of described unit head 6 inside, and its front end screws by screw thread and drilling rod 4.On described feeding frame 1, be provided with a sliding part 2, this sliding part 2 can be symmetrically arranged two slidiing pins, be fixed in by a bearing support 9 and feed on the frame 1, two sliding parts, 2 central axial direction are with to feed frame 1 central axial direction (also being unit head 6 direction of axis line) consistent, described unit head 6 is placed on described two sliding parts 2, can move along sliding part 2 axis under external force, and then drive power spindle 5 moves.
The utility model provides motive force for giving unit head 6, at described unit head 6 and feed between the frame 1, is provided with thrust-compensating oil cylinder 3.The direction that the utility model embodiment adopts the power output be symmetricly set in two thrust-compensating oil cylinders, 3, two compensating cylinders 3 that feed on the frame 1 during with unloading drilling rod 4 the setback force direction of screw thread consistent.Said structure is when the screw thread of unloading drilling rod 4, as long as the screw thread setback force overcomes very little resistance, unit head 6 is floated backward, finish the action of shackle, and can not damage the screw thread of drilling rod 4, and said structure when assembling, unit head 6 is placed on the sliding part 2 gets final product, and sliding part 2 is an axial workpiece, adopts spline structure simple more than prior art, and processing cost is low, required precision is low, and assembling easily.Simultaneously compensating cylinder 3 be the prior art matured product, and simple with being connected between other members, the tight performance of itself is enough to satisfy construction requirement, do not need by other auxiliary components additional, so can reach the utility model designing requirement.
Preferably, described compensating cylinder 3 cylinder bodies of the utility model embodiment can be fixed in and feed on the frame 1, and its piston rod links to each other with described unit head 6, by the advance and retreat of piston rod in cylinder body, drive unit head 6 and axially move, to realize floating of unit head 6 along sliding part 2.In the said structure, also can with compensating cylinder 3 piston rods with feed frame 1 and be connected, cylinder body links to each other with described unit head 6, can realize the advance and retreat of unit head 6 equally.
In the concrete enforcement of the utility model, described compensating cylinder 3 can link to each other with hydraulic oil pump 8 by the oil return pipe of certain hydraulic system of rig, does not need to increase other supplementary equipment therefore like this, only needs other pipeline shunting a connecting pipe connections of hydraulic system are got final product, very convenient, and the cost that increases is seldom.
Further, the utility model is the motive force that effectively guarantees thrust-compensating oil cylinder 3, on the pipeline between described hydraulic oil pump 8 and the compensating cylinder 3, also be provided with a pressure-regulating valve 7, adopt pressure-regulating valve 7, can adjust the hydraulic system return pressure that puts on compensating cylinder 3, make the thrust of compensating cylinder 3 suitable, be generally 4-6MPa and get final product, it is about the 70-80% of unit head 6 slip resistance.Rely on separately the top power of the oil cylinder 3 that floats this moment, also is not enough to propulsion power head 6, but the suffered extruding force of screw thread can reduce the screw thread of unloading drilling rod 4 greatly the time.Therefore can well protect screw thread, prolong the application life of drilling rod 4.
The above only is several preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. non-digging drill unit head relocation mechanism, comprise feeding frame and being located at the described unit head that feeds on the frame that it is characterized in that: the described frame that feeds is provided with sliding part, described unit head places on the described sliding part, at unit head and feed between the frame, be provided with a thrust-compensating oil cylinder.
2. a kind of non-digging drill unit head relocation mechanism according to claim 1 is characterized in that: described sliding part is for being symmetricly set in described two slidiing pins that feed on the frame.
3. a kind of non-digging drill unit head relocation mechanism according to claim 1 and 2 is characterized in that: described thrust-compensating oil cylinder links to each other with hydraulic oil pump by the oil return pipe of drilling rig hydraulic system.
4. a kind of non-digging drill unit head relocation mechanism according to claim 3, it is characterized in that: described thrust-compensating cylinder block is fixed in and feeds on the frame, and its piston rod links to each other with described unit head.
5. a kind of non-digging drill unit head relocation mechanism according to claim 3 is characterized in that: also be provided with pressure-regulating valve on the return line between described hydraulic oil pump and the thrust-compensating oil cylinder.
6. a kind of non-digging drill unit head relocation mechanism according to claim 3, it is characterized in that: the thrust of described thrust-compensating oil cylinder is the 70-80% of unit head slip resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201465792U CN201198743Y (en) | 2008-08-11 | 2008-08-11 | Non-excavating drill power head floating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201465792U CN201198743Y (en) | 2008-08-11 | 2008-08-11 | Non-excavating drill power head floating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198743Y true CN201198743Y (en) | 2009-02-25 |
Family
ID=40449899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201465792U Expired - Fee Related CN201198743Y (en) | 2008-08-11 | 2008-08-11 | Non-excavating drill power head floating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198743Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351568A (en) * | 2015-11-05 | 2017-01-25 | 衡阳中地装备探矿工程机械有限公司 | Top drive type core drill displacement compensation device |
| CN110770411A (en) * | 2017-04-28 | 2020-02-07 | 伊特里克公司 | Drilling rig including tubular stand handling system |
| CN110984846A (en) * | 2019-11-18 | 2020-04-10 | 江苏徐工工程机械研究院有限公司 | Drilling machine and power head thereof |
-
2008
- 2008-08-11 CN CNU2008201465792U patent/CN201198743Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351568A (en) * | 2015-11-05 | 2017-01-25 | 衡阳中地装备探矿工程机械有限公司 | Top drive type core drill displacement compensation device |
| CN110770411A (en) * | 2017-04-28 | 2020-02-07 | 伊特里克公司 | Drilling rig including tubular stand handling system |
| CN110770411B (en) * | 2017-04-28 | 2022-05-24 | 伊特里克公司 | Drilling rig including tubular stand handling system |
| CN110984846A (en) * | 2019-11-18 | 2020-04-10 | 江苏徐工工程机械研究院有限公司 | Drilling machine and power head thereof |
| CN110984846B (en) * | 2019-11-18 | 2021-07-30 | 江苏徐工工程机械研究院有限公司 | Drilling machine and power head thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20160811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |