CN110409998B - Power head buffering device of rotary drilling rig - Google Patents
Power head buffering device of rotary drilling rig Download PDFInfo
- Publication number
- CN110409998B CN110409998B CN201910733536.7A CN201910733536A CN110409998B CN 110409998 B CN110409998 B CN 110409998B CN 201910733536 A CN201910733536 A CN 201910733536A CN 110409998 B CN110409998 B CN 110409998B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- annular cavity
- bottom flange
- lever
- shock absorber
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 20
- 230000003139 buffering effect Effects 0.000 title claims abstract description 19
- 230000035939 shock Effects 0.000 claims abstract description 24
- 239000006096 absorbing agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000003831 antifriction material Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/026—Springs wound- or coil-like
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a power head buffering device of a rotary drilling rig, which comprises an upper pressure plate with a bottom flange, a sleeve connected with the bottom flange in a sliding manner and a guide rod for guiding the upper pressure plate to slide up and down, wherein the sleeve is of a hollow structure with an annular cavity, the annular cavity is rotationally connected with levers swinging up and down, the levers comprise a plurality of levers which are uniformly distributed along the circumference of the sleeve, the levers extend out of the annular cavity to form supporting ends, the sleeve is provided with through holes for the levers to extend out, the supporting ends are abutted against the bottom flange, one end of each lever in the annular cavity is connected with a shock absorber, the shock absorber is fixed in the annular cavity, and a spiral spring is sleeved outside each shock absorber; the invention can provide good working environment for the spring and prolong the service life of the whole buffer device.
Description
Technical Field
The invention relates to the technical field of power head buffering of rotary drilling rigs, in particular to a power head buffering device of a rotary drilling rig.
Background
The rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering. The rotary drilling rig is mainly suitable for construction of soil layers such as sandy soil, cohesive soil, silty soil and the like, and is widely applied to construction of various foundation foundations such as cast-in-place piles, continuous walls, foundation reinforcement and the like, the rated power of the rotary drilling rig is generally 125-450 kW, the power output torque is 120-400 kN.m, the maximum hole forming diameter can reach 1.5-4 m, and the maximum hole forming depth is 60-90 m, so that the requirements of various large-scale foundation constructions can be met.
The power head is an important part of the rotary drilling rig and generally comprises a power box, a speed reducer and a buffer device. The power input end of the speed reducer is connected with the power output end of the hydraulic motor, the power output end of the speed reducer is connected with a key sleeve body with a gear ring in the power box, and a driving key bar for providing torque for the drill rod is arranged in the key sleeve body. The buffer device is arranged on the power box and is coaxial with the key sleeve body, so that the buffer device can bear the heavy impact of instantaneous falling of the drill rod and protect the components such as the power box.
If the application number is: a patent of CN201220734325.9 discloses a power head buffer device, which comprises an upper pressure plate, a sleeve, a guide rod, a spring and a hydraulic buffer, wherein: the bottom flange of going up the pressure disk is movably to be overlapped and is located on the sleeve, be provided with the guiding hole on the flange of bottom, telescopic bottom is provided with supporting baseplate, the bottom mounting in of guide arm supporting baseplate, the top of guide arm is passed behind the guiding hole by spacing the top side of bottom flange, the spring housing lies in on the guide arm, its both ends respectively by supporting baseplate with the bottom flange is spacing, the bottom mounting in of hydraulic buffer the supporting baseplate, the top orientation of hydraulic buffer the bottom flange sets up.
As for the damping devices of the above patent documents, the damping between the sleeve and the upper platen is achieved by using the external (in the sleeve) manner of the (spiral) spring, and this manner has a rather harsh working environment and a short service life, so it is to be improved.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a power head buffer device of a rotary drilling rig, which can provide a good working environment for a spring and prolong the service life of the whole buffer device.
In order to achieve the purpose, the power head buffering device of the rotary drilling rig comprises an upper pressure plate with a bottom flange, a sleeve and a guide rod, wherein the sleeve is in a hollow structure with an annular cavity, the upper pressure plate is in sliding connection with the bottom flange, the guide rod guides the upper pressure plate to slide up and down, the annular cavity is rotatably connected with levers which swing up and down, the levers comprise a plurality of levers which are uniformly distributed along the circumferential direction of the sleeve, the levers extend out of the annular cavity to form supporting ends, the sleeve is provided with through holes for the levers to extend out, the supporting ends are abutted against the bottom flange, one end of each lever in the annular cavity is connected with a shock absorber, the shock absorber is fixed in the annular cavity, and a spiral spring is; the sleeve is provided with a limiting key on one surface in sliding connection with the bottom flange, and the bottom flange is provided with a limiting groove at the position corresponding to the limiting key.
Preferably, the lever is in an "a" shaped structure: comprising two non-parallel struts located within an annular cavity and a support end that converges to a point.
Preferably, a cross rod is connected between the two support rods, and the vibration damper is connected with the cross rod.
Preferably, the support end is provided with a buffer pad on the surface abutting against the bottom flange.
Preferably, the limiting key includes a plurality of and sets up along telescopic circumference equipartition, the spacing groove also includes a plurality of and with the limiting key one-to-one.
Preferably, the sleeve and the bottom flange are provided with a friction reducing coating on both surfaces in sliding contact.
Compared with the prior art, the invention has the beneficial effects that:
the shock absorber and the spiral spring are arranged in the annular cavity of the sleeve, so that the working environment is greatly improved, and the service life of the sleeve can be prolonged; when the upper pressure plate is pressed downwards, the bottom flange presses the supporting end of the lever to enable the lever to rotate, one end, located in the annular cavity, of the lever also rotates synchronously, a piston rod and a spiral spring of the shock absorber are compressed, the spiral spring is used for providing supporting and buffering, the shock absorber is used for attenuating high-frequency vibration, and therefore the effects of buffering and shock absorption are achieved, and after the downward pressure of the upper pressure plate disappears, the spiral spring and the shock absorber reset, and the supporting end resets to drive the upper pressure plate to reset.
Drawings
FIG. 1 is a front view of a power head buffering device of a rotary drilling rig according to the invention;
FIG. 2 is a side view of a rotary drilling rig power head buffering device with an upper pressure plate removed;
FIG. 3 is a top view of a rotary drilling rig power head buffering device with an upper pressure plate removed;
FIG. 4 is a schematic diagram of a three-dimensional structure of a rotary drilling rig power head buffering device with an upper pressure plate removed.
In the figure: 1. a bottom flange; 2. an upper platen; 3. a sleeve; 4. a guide bar; 5. an annular cavity; 6. a lever; 7. a support end; 8. a shock absorber; 9. a coil spring; 10. and a limiting key.
Detailed Description
To explain the technical content, structural features, attained objects and effects of the present invention in detail, embodiments are described below in detail with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
The invention provides a power head buffering device of a rotary drilling rig, which comprises an upper pressure plate 2 with a bottom flange 1, a sleeve 3 connected with the bottom flange 1 in a sliding manner and a guide rod 4 for guiding the upper pressure plate 2 to slide up and down, wherein the sleeve 3 is of a hollow structure with an annular cavity 5, the annular cavity 5 is rotationally connected with a lever 6 swinging up and down, the lever 6 comprises a plurality of levers which are uniformly distributed along the circumferential direction of the sleeve 3, the lever 6 extends out of the annular cavity 5 to form a supporting end 7, the sleeve 3 is provided with a through hole for the lever 6 to extend out, the supporting end 7 is abutted against the bottom flange 1, one end of the lever 6 in the annular cavity 5 is connected with a shock absorber 8, the shock absorber 8 is fixed in the annular cavity 5, and a spiral spring 9 is sleeved outside the shock; the sleeve 3 is provided with a limiting key 10 on one surface in sliding connection with the bottom flange 1, and the bottom flange 1 is provided with a limiting groove at the position corresponding to the limiting key 10.
By adopting the technical scheme, the shock absorber 8 and the spiral spring 9 are arranged in the annular cavity 5 of the sleeve 3, so that the working environment is greatly improved, and the service life of the sleeve can be prolonged; when the upper pressure plate 2 is pressed downwards, the bottom flange 1 presses against the support end 7 of the lever 6, the lever 6 is enabled to rotate, one end, located in the annular cavity 5, of the lever 6 also synchronously rotates, a piston rod of the shock absorber 8 and the spiral spring 9 are compressed, the spiral spring 9 is used for providing support and buffering, the shock absorber 8 is used for attenuating high-frequency vibration, and therefore the effects of buffering and shock absorption are achieved, when the downward pressure of the upper pressure plate 2 disappears, the spiral spring 9 and the shock absorber 8 reset, and the support end 7 resets to drive the upper pressure plate 2 to reset; the limiting key 10 and the limiting groove are used for preventing the upper pressure plate 2 from rotating relative to the sleeve 3, so that the upper pressure plate and the sleeve only slide relatively.
Preferably, the lever 6 is in an "a" shape: comprising two non-parallel struts located within the annular cavity 5 and a support end 7 that converges at a point.
Through adopting above-mentioned technical scheme, "A" font structure is favorable to increasing lever 6 intensity, prevents lever 6 fracture, and whole support intensity is better.
Preferably, a cross bar is connected between the two struts, and the damper 8 is connected with the cross bar.
Through adopting above-mentioned technical scheme, because two spinal branch parts design in annular cavity 5, so set up the horizontal pole, conveniently be connected with shock absorber 8, and be favorable to promoting "A" font structure lever 6's bulk strength.
Preferably, the support end 7 is provided with a cushion on the side abutting against the bottom flange 1.
By adopting the above technical scheme, the buffer pad is used for alleviating the impact of the bottom flange 1 on the supporting end 7 when being pressed down, preventing the impact load from being formed, and materials such as rubber can be adopted.
Preferably, the limit key 10 includes a plurality of and along the circumference equipartition setting of sleeve 3, the spacing groove also includes a plurality of and with limit key 10 one-to-one.
Through adopting above-mentioned technical scheme, a plurality of spacing keys 10 that set up along sleeve 3's circumference equipartition guarantee on the one hand that sleeve 3 and bottom flange 1 do not have relative rotation, and on the other hand is favorable to the stress balance.
Preferably, both the sleeve 3 and the bottom flange 1 are provided with a friction reducing coating on the surfaces in sliding contact.
By adopting the technical scheme, the antifriction coating can be made of antifriction materials which have the characteristics of low friction coefficient and good wear resistance, so that the friction between mutually contacted parts of friction parts can be reduced, and the contact surfaces of parts are prevented from being bonded in the operation process; antifriction materials are of a wide variety and include two broad classes, namely cast antifriction materials and powder metallurgy process produced materials.
It should be understood that the above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, so that the equivalent changes and modifications made in the light of the above disclosure and the appended claims are all within the scope of the present invention.
Claims (5)
1. The utility model provides a dig rig unit head buffer soon, includes the last pressure disk of taking the bottom flange, with bottom flange sliding connection's sleeve and guide go up the gliding guide arm about the pressure disk, its characterized in that: the sleeve is of a hollow structure with an annular cavity, the annular cavity is rotatably connected with a lever which swings up and down, the lever comprises a plurality of levers and is uniformly distributed along the circumferential direction of the sleeve, the lever extends out of the annular cavity to form a supporting end, the sleeve is provided with a through hole for the lever to extend out, the supporting end is abutted against a bottom flange, one end of the lever in the annular cavity is connected with a shock absorber, and the lever is of an A-shaped structure: the shock absorber comprises two unparallel supporting rods positioned in an annular cavity and a supporting end converged at one point, the shock absorber is fixed in the annular cavity, and a spiral spring is sleeved outside the shock absorber; the sleeve is provided with a limiting key on one surface in sliding connection with the bottom flange, and the bottom flange is provided with a limiting groove at the position corresponding to the limiting key.
2. The rotary drilling rig power head buffering device according to claim 1, characterized in that: and a cross rod is connected between the two support rods, and the vibration absorber is connected with the cross rod.
3. The rotary drilling rig power head buffering device according to claim 2, characterized in that: and a buffer cushion is arranged on one surface of the supporting end, which is abutted against the bottom flange.
4. The rotary drilling rig power head buffering device according to claim 3, characterized in that: the limiting key comprises a plurality of limiting grooves which are uniformly distributed along the circumferential direction of the sleeve, and the limiting grooves also comprise a plurality of limiting grooves which correspond to the limiting keys one to one.
5. The rotary drilling rig power head buffering device according to claim 4, characterized in that: and the sleeve and the bottom flange are provided with antifriction coatings on the surfaces in sliding contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733536.7A CN110409998B (en) | 2019-08-09 | 2019-08-09 | Power head buffering device of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733536.7A CN110409998B (en) | 2019-08-09 | 2019-08-09 | Power head buffering device of rotary drilling rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110409998A CN110409998A (en) | 2019-11-05 |
| CN110409998B true CN110409998B (en) | 2020-11-27 |
Family
ID=68366747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910733536.7A Active CN110409998B (en) | 2019-08-09 | 2019-08-09 | Power head buffering device of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110409998B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761705B (en) * | 2019-11-14 | 2021-05-18 | 徐州健川机械制造有限公司 | Power head with damping function for rotary drilling rig |
| CN111021940B (en) * | 2019-11-15 | 2021-09-07 | 徐州健川机械制造有限公司 | Power head of rotary drilling rig |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2269701C1 (en) * | 2004-05-31 | 2006-02-10 | Олег Савельевич Кочетов | Flexible-inertia vibration insulator |
| CN2839098Y (en) * | 2005-10-13 | 2006-11-22 | 孙云南 | Built-in lever type damper for bicycle |
| CN203066854U (en) * | 2012-12-28 | 2013-07-17 | 三一重工股份有限公司 | Power head buffering device and rotary drilling rig |
| CN203362030U (en) * | 2013-06-28 | 2013-12-25 | 上海赛达传动设备科技有限公司 | Long spiral power head buffer device and multifunctional power head buffer device of rotary drilling rig |
-
2019
- 2019-08-09 CN CN201910733536.7A patent/CN110409998B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2269701C1 (en) * | 2004-05-31 | 2006-02-10 | Олег Савельевич Кочетов | Flexible-inertia vibration insulator |
| CN2839098Y (en) * | 2005-10-13 | 2006-11-22 | 孙云南 | Built-in lever type damper for bicycle |
| CN203066854U (en) * | 2012-12-28 | 2013-07-17 | 三一重工股份有限公司 | Power head buffering device and rotary drilling rig |
| CN203362030U (en) * | 2013-06-28 | 2013-12-25 | 上海赛达传动设备科技有限公司 | Long spiral power head buffer device and multifunctional power head buffer device of rotary drilling rig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110409998A (en) | 2019-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110409998B (en) | Power head buffering device of rotary drilling rig | |
| CN101623861A (en) | Power tool | |
| CN104670492A (en) | Helicopter blade embedded type radial motion shimmy damper | |
| CN201818237U (en) | Non-valve impact rotating type power head of hydraulic anchor rod drilling machine | |
| CN203347681U (en) | Cam type high-frequency percussion drilling tool | |
| CN207633340U (en) | A kind of Hydraulic pile-driving machine with amplitude variation type hydraulic pressure piling structure | |
| CN205743702U (en) | The all-hydraulic drill of one is repaired in a kind of soil sample | |
| CN202510028U (en) | Power head of deep hole hydraulic core drilling machine | |
| CN210659927U (en) | Disc connecting mechanism supported by multi-shaft sleeve and rotary drilling rig | |
| CN205977090U (en) | High -efficient anti screw rod drilling tool that dashes | |
| CN104653711A (en) | Power structure of percussion drill | |
| CN206368686U (en) | Drill bit radial direction bumper jar | |
| CN85100828B (en) | Geologic drilling rig mounted or automobile | |
| CN1975093B (en) | Rotary vibrating unit head | |
| CN114837094A (en) | Anchoring structure and self-anchoring steel foundation platform for bridge building machine comprising same | |
| CN217354235U (en) | Impact drill for coal mine | |
| CN107420030A (en) | Rotary drilling rig | |
| CN209025617U (en) | A kind of expansion bit and twist bit | |
| CN112502727A (en) | Hydraulic milling and drilling machine and working method thereof | |
| CN200989161Y (en) | Whirling vibration unit head | |
| CN205977089U (en) | Screw rod drilling tool that shocks resistance | |
| CN206298804U (en) | A kind of road construction rammer | |
| CN115415142B (en) | Special vibration direction conversion device for piston type pneumatic vibrator | |
| CN101487226B (en) | Power transmission system of multi-use ramming machine and its air cushion type impact piston system | |
| CN209040751U (en) | Power head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |