CN110409998A - A kind of rotary digging drill power head buffer unit - Google Patents
A kind of rotary digging drill power head buffer unit Download PDFInfo
- Publication number
- CN110409998A CN110409998A CN201910733536.7A CN201910733536A CN110409998A CN 110409998 A CN110409998 A CN 110409998A CN 201910733536 A CN201910733536 A CN 201910733536A CN 110409998 A CN110409998 A CN 110409998A
- Authority
- CN
- China
- Prior art keywords
- flange
- sleeve
- lever
- ring cavity
- buffer unit
- 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.)
- Granted
Links
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 description 6
- 238000005553 drilling Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000003831 antifriction material Substances 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of rotary digging drill power head buffer unit, including the upper platen with flange in the bottom, the sleeve being slidably connected with flange in the bottom and the guide rod for guiding upper platen to slide up and down, the sleeve is the hollow structure with ring cavity, the ring cavity is rotatably connected to the lever swung up and down, the lever includes several and is uniformly arranged along the circumferential direction of sleeve, the lever extends ring cavity and forms support end, the sleeve offers the through-hole stretched out for lever, the support end is abutted with flange in the bottom, the one end of the lever in ring cavity is connected with damper, the damper is fixed in ring cavity, helical spring is arranged with outside the damper；The sleeve is equipped with positive stop key in the one side being slidably connected with flange in the bottom, and the flange in the bottom is equipped with limiting slot at corresponding positive stop key, and the present invention can provide works fine environment for spring and extend the service life of entire buffer unit.
Description
Technical field
The present invention relates to rotary digging drill power head buffer technology fields, and in particular to a kind of rotary digging drill power head buffering dress
It sets.
Background technique
Rotary drilling rig is a kind of construction machinery of pore-forming operation in suitable building foundation engineering.It is primarily adapted for sand, viscosity
The construction of the soil layers such as soil, slity soil, is used widely in a variety of foundation basic constructions such as bored concrete pile, diaphragm wall, strengthening of foundation,
The rated power of rotary drilling rig is generally 125~450kW, and power output torque is 120~400kNm, and maximum drilling diameter can
Up to 1.5~4m, maximum depth of pore forming is 60~90m, can satisfy the requirement of all kinds of large foundation constructions.
Power head is an important component of rotary drilling rig, generally includes headstock, speed reducer and buffer unit.Speed reducer
Power intake and the power output end of hydraulic motor connect, with rack gear in the power output end of speed reducer and headstock
The connection of key body, key set is equipped in vivo provides the driving spline of torque for drilling rod.Buffer unit is set on headstock, with the key
Body coaxial arrangement, can bear that drilling rod instantaneously falls pounds again, the components such as protection headstock.
Such as application No. is: a patent of CN201220734325.9 discloses a kind of power head buffer unit, including upper
Platen, sleeve, guide rod, spring and hydraulic bjuffer, in which: the flange in the bottom of the upper platen is movably sheathed on the set
On cylinder, pilot hole is provided on the flange in the bottom, the bottom of the sleeve is provided with support baseboard, and the bottom end of the guide rod is solid
Due to the support baseboard, the top of the guide rod is limited in the top side of the flange in the bottom, institute after the pilot hole
It states spring pocket to be on the guide rod, both ends are limited by the support baseboard and the flange in the bottom respectively, described hydraulic slow
The support baseboard is fixed in the bottom end for rushing device, and the top of the hydraulic bjuffer is arranged towards the flange in the bottom.
As above-mentioned patent document buffer unit, be all made of (spiral) external spring (in sleeve) mode realize sleeve and
The working environment of buffering between upper platen, this mode spring is quite severe, and the service life is shorter, therefore to be improved.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to provide a kind of rotary digging drill power head buffer unit, energy
For spring provides works fine environment and extends the service life of entire buffer unit.
To achieve the above object, a kind of rotary digging drill power head buffer unit of the present invention, including with the upper of flange in the bottom
Platen, the sleeve being slidably connected with flange in the bottom and the guide rod for guiding upper platen to slide up and down, the sleeve are with cyclic annular empty
The hollow structure of chamber, the ring cavity are rotatably connected to the lever swung up and down, the lever include several and along sleeve
Circumferential direction be uniformly arranged, the lever extends ring cavity and forms support end, the sleeve offer stretched out for lever it is logical
Hole, the support end are abutted with flange in the bottom, and the one end of the lever in ring cavity is connected with damper, the damper
It is fixed in ring cavity, helical spring is arranged with outside the damper；The sleeve is in one to be slidably connected with flange in the bottom
Face is equipped with positive stop key, and the flange in the bottom is equipped with limiting slot at corresponding positive stop key.
Preferably, the lever is in " A " character form structure: including two not parallel struts being located in ring cavity and being collected
In the support end of a bit.
Preferably, it is connected with cross bar between two struts, the damper is connect with cross bar.
Preferably, the support end is equipped with cushion in the one side abutted with flange in the bottom.
Preferably, the positive stop key includes several and is uniformly arranged along the circumferential direction of sleeve, if the limiting slot also includes
It does a and is corresponded with positive stop key.
Preferably, the sleeve and flange in the bottom are equipped with anti-friction coating on the surface of sliding contact.
Compared with prior art, the present invention the beneficial effect is that:
Damper is set in the ring cavity of sleeve and helical spring, in this way its working environment are greatly improved, from
And it can prolong its service life；When upper platen pushes, flange in the bottom presses to the support end of lever, makes lever rotation, lever
One end in ring cavity also rotates synchronously, and compresses the piston rod and helical spring of damper, and helical spring is for mentioning
For supporting and buffering, damper is for high-frequency vibration of decaying, to play the role of buffering and vibration damping, when the lower pressure of upper platen
After disappearance, helical spring and damper reset, and reset support end and upper platen is driven to reset.
Detailed description of the invention
Fig. 1 is a kind of front view of rotary digging drill power head buffer unit of the present invention；
Fig. 2 is a kind of side view of the rotary digging drill power head buffer unit of the present invention after removing upper platen；
Fig. 3 is a kind of top view of the rotary digging drill power head buffer unit of the present invention after removing upper platen；
Fig. 4 is a kind of three dimensional structure diagram of the rotary digging drill power head buffer unit of the present invention after removing upper platen.
In figure: 1, flange in the bottom；2, upper platen；3, sleeve；4, guide rod；5, ring cavity；6, lever；7, support end；8,
Damper；9, helical spring；10, positive stop key.
Specific embodiment
By the technology contents that the present invention will be described in detail, construction feature, reached purpose and efficacy, hereby enumerates embodiment below
And attached drawing is cooperated to be explained in detail.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention
The limitation of range.
The present invention provides a kind of rotary digging drill power head buffer unit, including with the upper platen 2 of flange in the bottom 1 and bottom
The sleeve 3 that flange 1 is slidably connected and the guide rod 4 for guiding upper platen 2 to slide up and down, the sleeve 3 are in ring cavity 5
Hollow structure, the ring cavity 5 are rotatably connected to the lever 6 swung up and down, and the lever 6 is including several and along sleeve 3
It is circumferentially uniformly arranged, the lever 6 extends ring cavity 5 and forms support end 7, and the sleeve 3 is offered for the stretching of lever 6
Through-hole, the support end 7 are abutted with flange in the bottom 1, and the one end of the lever 6 in ring cavity 5 is connected with damper 8, institute
It states damper 8 to be fixed in ring cavity 5, is arranged with helical spring 9 outside the damper 8；The sleeve 3 with flange in the bottom
1 one side being slidably connected is equipped with positive stop key 10, and the flange in the bottom 1 is equipped with limiting slot at corresponding positive stop key 10.
By using above-mentioned technical proposal, damper 8 and helical spring 9 are set in the ring cavity 5 of sleeve 3, in this way
Its working environment is greatly improved, so as to prolong its service life；When upper platen 2 pushes, flange in the bottom 1 presses to thick stick
The support end 7 of bar 6 rotates lever 6, and one end that lever 6 is located in ring cavity 5 also rotates synchronously, and compresses damper 8
Piston rod and helical spring 9, helical spring 9 is for providing support and buffering, and damper 8 is for high-frequency vibration of decaying, to rise
To the effect of buffering and vibration damping, after the lower pressure of upper platen 2 disappears, helical spring 9 and damper 8 reset, and keep support end 7 multiple
Position drives upper platen 2 to reset；Positive stop key 10 and limiting slot are for preventing 2 relative sleeve 3 of platen from rotating, and making the two, there is only phases
To sliding.
Preferably, the lever 6 is in " A " character form structure: including two not parallel struts being located in ring cavity 5 and remittance
Combine in the support end 7 of a bit.
By using above-mentioned technical proposal, " A " character form structure is conducive to increase by 6 intensity of lever, and lever 6 is prevented to be broken, whole
Body support strength is preferable.
Preferably, cross bar is connected between two struts, the damper 8 is connect with cross bar.
By using above-mentioned technical proposal, since two struts separately design in ring cavity 5, therefore cross bar is set, side
Just it is connect with damper 8, and is conducive to be promoted the integral strength of " A " character form structure lever 6.
Preferably, the support end 7 is equipped with cushion in the one side abutted with flange in the bottom 1.
By using above-mentioned technical proposal, cushion is used to mitigate impact of the flange in the bottom 1 when pushing to support end 7,
It prevents from forming shock loading, it can be using materials such as rubber.
Preferably, the positive stop key 10 includes several and is uniformly arranged along the circumferential direction of sleeve 3, and the limiting slot also includes
Several and with positive stop key 10 correspond.
By using above-mentioned technical proposal, on the one hand the positive stop key 10 that multiple circumferential directions along sleeve 3 are uniformly arranged guarantees set
On the other hand cylinder 3 and flange in the bottom 1 are conducive to stress balance without relative rotation.
Preferably, the sleeve 3 and flange in the bottom 1 are equipped with anti-friction coating on the surface of sliding contact.
By using above-mentioned technical proposal, anti-friction coating can use antifriction material, and antifriction material has coefficient of friction low
And the feature that wearability is good, it can reduce friction member and contact with each other the friction between part and prevent feature contacts table in operational process
It is bonded between face；Antifriction material is various in style, including two major classes, that is, antifriction material and the powder metallurgy process manufacture cast
Material.
In conclusion only the preferred embodiments of the invention, is not limited the scope of protection of the present invention with this, it is all according to the present invention
Equivalent changes and modifications made by the scope of the patents and description are all within the scope of the invention patent covers.
Claims (6)
1. a kind of rotary digging drill power head buffer unit is slidably connected including the upper platen with flange in the bottom, with flange in the bottom
Sleeve and the guide rod for guiding upper platen to slide up and down, it is characterised in that: the sleeve is the hollow structure with ring cavity, institute
It states ring cavity and is rotatably connected to the lever swung up and down, the lever includes several and is uniformly arranged along the circumferential direction of sleeve,
The lever extend ring cavity formed support end, the sleeve offer for lever stretch out through-hole, the support end with
Flange in the bottom abuts, and the one end of the lever in ring cavity is connected with damper, and the damper is fixed on ring cavity
It is interior, helical spring is arranged with outside the damper；The sleeve is equipped with positive stop key in the one side being slidably connected with flange in the bottom,
The flange in the bottom is equipped with limiting slot at corresponding positive stop key.
2. a kind of rotary digging drill power head buffer unit according to claim 1, it is characterised in that: the lever is in " A "
Character form structure: including two not parallel struts being located in ring cavity and the support end for coming together in a bit.
3. a kind of rotary digging drill power head buffer unit according to claim 2, it is characterised in that: two struts it
Between be connected with cross bar, the damper is connect with cross bar.
4. a kind of rotary digging drill power head buffer unit according to claim 3, it is characterised in that: the support end with
The one side that flange in the bottom abuts is equipped with cushion.
5. a kind of rotary digging drill power head buffer unit according to claim 4, it is characterised in that: the positive stop key includes
Several and be uniformly arranged along the circumferential direction of sleeve, the limiting slot also include several and with positive stop key correspond.
6. a kind of rotary digging drill power head buffer unit according to claim 5, it is characterised in that: the sleeve and bottom
Flange is equipped with anti-friction coating on the surface of 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 true CN110409998A (en) | 2019-11-05 |
| CN110409998B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761705A (en) * | 2019-11-14 | 2020-02-07 | 徐州健川机械制造有限公司 | Power head with damping function for rotary drilling rig |
| CN111021940A (en) * | 2019-11-15 | 2020-04-17 | 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761705A (en) * | 2019-11-14 | 2020-02-07 | 徐州健川机械制造有限公司 | Power head with damping function for rotary drilling rig |
| 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 |
| CN111021940A (en) * | 2019-11-15 | 2020-04-17 | 徐州健川机械制造有限公司 | Power head of rotary drilling rig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110409998B (en) | 2020-11-27 |
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