CN220486410U - High-frequency transverse vibration type drill rod - Google Patents
High-frequency transverse vibration type drill rod Download PDFInfo
- Publication number
- CN220486410U CN220486410U CN202320629971.7U CN202320629971U CN220486410U CN 220486410 U CN220486410 U CN 220486410U CN 202320629971 U CN202320629971 U CN 202320629971U CN 220486410 U CN220486410 U CN 220486410U
- Authority
- CN
- China
- Prior art keywords
- drill rod
- roller eccentric
- moving cam
- direct
- acting roller
- 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 claims description 11
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 10
- 239000002689 soil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a high-frequency transverse vibration type drill rod in the technical field of building construction equipment, which comprises a drill rod inner wall and a drill rod, wherein the upper end of the drill rod is connected with a baffle and a buffer pad, the buffer pad is connected with a pneumatic piston vibrator, the lower end of the drill rod is provided with a direct-acting roller follower, a moving cam mechanism and a drill bit, the drill rod mechanism has three periods of concave-convex through the moving cam, when the vibrator vibrates downwards, the moving cam can drive a left and right direct-acting roller eccentric block to complete three periods of vibration, when the vibrator vibrates upwards, the moving cam can drive the left and right direct-acting roller eccentric block to complete three periods of vibration, and when the vibrator vibrates for one period, the left and right direct-acting roller eccentric block vibrates for six periods respectively; the left and right moving cams differ by half a period, so that the vibration period of the left and right direct-acting roller eccentric blocks differ by half, and the transverse vibration frequency of the mechanism is improved again through superposition of the vibration frequencies of the left and right direct-acting roller eccentric blocks.
Description
Technical Field
The utility model relates to the technical field of building construction equipment, in particular to a high-frequency transverse vibration type drill rod.
Background
Sand liquefaction is one of the most typical phenomena of earthquake disasters and is an important problem of general attention of international engineering earthquake resistance. China is one of the countries where the global continental earthquakes are most active and frequent in earthquake disasters. Meanwhile, the national land of China is wide, the sand and the sand are widely distributed, and particularly, the special attention is paid to the fact that three large urban groups of the Jingjin ring Bohai sea, the Yangtze river delta and the Zhujiang delta are located in plain areas where saturated silt, silt and fine sand are widely distributed. Some major projects, such as northwest electric east transport, south-to-north water transfer and other major infrastructure, often also traverse sand. Under the action of moderate earthquake, liquefaction of sand will cause liquefaction earthquake subsidence and loss of bearing capacity of the foundation, which can cause additional settlement of the foundation and soil layers, overturning, tilting, cracking, sliding and the like of the structure and the foundation, and various infrastructures and buildings can not normally operate, and the functions are partially and even completely lost.
The liquefaction of sand causes great damage to the building in the earthquake, but in actual engineering, the liquefaction phenomenon of sand can be utilized. Recently, vibration grouting has become a new construction method for treating soft foundations. The basic principle of the vibration grouting technology is to force the saturated fine sand and silt foundation to liquefy by adopting a mechanical vibration method so as to lose strength, and then to pour slurry into the foundation. The method comprises the steps of firstly forming a softening area in a sandy soil foundation through impact vibration of a vibration machine tool, and then pressing slurry into sandy soil by using a grouting pipe.
Since the soil liquefaction effect becomes remarkable with an increase in the vibration frequency, particularly when the vibration load operating frequency is close to the natural frequency of the soil, the soil liquefaction effect is most remarkable because of the resonance effect. However, the prior art can only apply vibration on the top of the drill rod, the vibration is difficult to be transmitted to the end of the drill rod, the frequency of the conventional common vibrator is almost no more than 150HZ, but the natural frequency of sand can reach 800HZ, and the vibration frequency of the conventional pneumatic vibrator is low.
To this end we propose a high frequency transverse vibration drill rod.
Disclosure of Invention
The utility model aims to provide a high-frequency transverse vibration type drill rod so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-frequency transverse vibration type drill rod, includes drilling rod inner wall and drilling rod, the upper end of drilling rod is connected with baffle and cushion, be connected with pneumatic type piston vibrator on the baffle and the cushion, the lower extreme of drilling rod is installed directly moves roller follower, removal cam mechanism and drill bit, pneumatic type piston vibrator includes shell, piston, venthole, inlet port, breather pipe, one-way air duct, intake pipe, the piston rod that links to each other with the external world, cam mechanism includes connection disc, hollow removal cam, directly moves roller eccentric block fixing device, pneumatic type piston vibrator directly links to each other with hollow removal cam, hollow removal cam sets up into left and right sides two sets of all be connected with the directly move roller eccentric block on the hollow removal cam, left and right sides two sets of hollow removal cam respectively have three periodic unsmooth, left and right sides of directly moving roller eccentric block the both sides quality is unequal, and left and right sides two sets of directly moving roller eccentric block have two bearing dog that keep away from hollow removal cam width, be connected with on the inner wall and move roller eccentric block fixing device directly moves in the eccentric block.
Preferably, the air outlet hole, the air inlet hole, the air pipe, the unidirectional air guide pipe and the air inlet pipe are used for air inlet and air outlet of the pneumatic piston vibrator.
Preferably, the pneumatic piston vibrator is integrally fixed and reciprocates through a piston rod connected to the outside.
Preferably, the pneumatic piston vibrator and the hollow movable cam are of an integrated structure.
Compared with the prior art, the utility model has the beneficial effects that: the reason that this drilling rod mechanism can realize high frequency transverse vibration is that: the movable cam has three periods of concave-convex, when the vibrator vibrates downwards, the movable cam can drive the left and right linear motion roller eccentric blocks to complete three periods of vibration, when the vibrator vibrates upwards, the movable cam can drive the left and right linear motion roller eccentric blocks to complete three periods of vibration, and when the vibrator vibrates for one period, the left and right linear motion roller eccentric blocks vibrate for six periods respectively; the left and right moving cams differ by half a period, so that the vibration period of the left and right direct-acting roller eccentric blocks differ by half, and the transverse vibration frequency of the mechanism is improved again through superposition of the vibration frequencies of the left and right direct-acting roller eccentric blocks.
Drawings
Fig. 1 is a schematic view of the drill rod mechanism when the moving cam moves up to the limit position.
Fig. 2 is a schematic structural view of the drill rod mechanism in the process of moving the cam upward.
Fig. 3 is a schematic view of the drill rod mechanism when the moving cam is just started to go up.
Fig. 4 is a schematic structural diagram of the drill rod mechanism in the descending process of the moving cam.
Fig. 5 is a schematic view of the drill rod mechanism when the moving cam descends to the limit position.
Fig. 6 is a side view of the drill rod mechanism at a certain point in time.
Fig. 7 is a cross-sectional top view taken at A-A of fig. 2.
Fig. 8 is a side view at B in fig. 3.
In the figure: 1. the inner wall of the drill rod; 2. a baffle; 3. a cushion pad; 4. a housing; 5. a piston; 6. an air outlet hole; 7. an air inlet hole; 8. a vent pipe; 9. a unidirectional air duct; 10. an air inlet pipe; 11. a gap between the vibrator inner cavity and the lower surface of the piston; 12. a piston rod connected with the outside; 13. a connecting disc; 14. a hollow moving cam; 15. a direct-acting roller eccentric block; 16. a direct-acting roller eccentric block fixing device; 17. a bearing stop; 18. and (3) drilling rod.
Detailed Description
Example 1
Referring to fig. 1-8, the present utility model provides a technical solution:
the upper end of the drill rod 18 is a pneumatic piston vibrator fixed by a buffer pad 3 and a baffle plate 2, the lower end of the drill rod 18 is composed of a moving cam mechanism and a drill bit, the moving cam mechanism is driven by the pneumatic piston vibrator to transversely vibrate, the pneumatic piston vibrator comprises a shell 4, a piston 5, a piston rod 12 connected with the outside, an air inlet hole 7, an air outlet hole 6, an air inlet pipe 10, an air pipe 8 and a one-way air duct 9, the cam mechanism comprises a connecting disc 13, a hollow moving cam 14, a linear moving roller eccentric block 15 and a linear moving roller eccentric block fixing device 16, the pneumatic piston vibrator is directly connected with the hollow moving cam 14, the hollow moving cam 14 is arranged into a left group and a right group, the left group and the right group of hollow moving cams 14 are respectively provided with three periodic concave-convex parts, the two sides of the linear moving roller eccentric block 15 are unequal in mass, one side of the inside of the left and right linear moving roller eccentric block 15 is provided with two bearing blocks 17 with the width of the hollow moving cam 14, one side of the linear moving roller eccentric block fixing device 16 is embedded in the linear moving roller eccentric block 15, and the other side of the linear moving roller eccentric block fixing device 16 is connected with the inner wall 1.
The pneumatic piston vibrator is provided with an air outlet hole 6, an air inlet hole 7, an air pipe 8, a one-way air duct 9 and an air inlet pipe 10 for air inlet and air outlet in the pneumatic piston vibrator.
The pneumatic piston vibrator is integrally fixed and reciprocates through a piston rod 12 connected to the outside.
The pneumatic piston vibrator is integrated with the hollow movable cam 14, the concave-convex period of the hollow movable cam 14 is three weeks, and the periods of the left and right groups of hollow movable cams 14 are different by half a week.
The linear motion roller eccentric blocks 15 are arranged as two groups on two sides of the left and right groups of hollow moving cams 14, and two bearing stop blocks 17 which are positioned on two sides of the hollow moving cams 14 and are separated from each other by the width of the hollow moving cams 14 are respectively arranged on the inner sides of the linear motion roller eccentric blocks 15.
The rod end of the direct-acting roller eccentric block fixing device 16 is integrated with the inner wall 1 of the drill rod, and the direct-acting roller eccentric block fixing device 16 is embedded in the direct-acting roller eccentric block 15.
The buffer cushion 3 and the baffle plate 2 are connected with the inner wall 1 of the drill rod, and the buffer cushion 3 and the baffle plate 2 are connected.
The working process comprises the following steps:
the hollow moving cam 14 moves upward: after the pneumatic piston vibrator is in the back of admitting air through inlet port 7 and intake pipe 10, because the breather pipe 8 on piston 5 and the piston rod 12 that links to each other with the external world is stopped up this moment, gas can only get into the gap 11 between piston rod 12 lower surface that links to each other with the external world and vibrator inner chamber and the piston lower surface to promote piston 5 and the piston rod 12 that links to each other with the external world and begin upward movement, hollow movable cam 14 goes upward along with the piston rod 12 that links to each other with the external world together, bearing dog 17 drives the linear motion of straight roller eccentric block 15 level under the effect of cam driving piece, and linear roller eccentric block 15 passes horizontal vibration through striking drilling rod inner wall 1.
The hollow moving cam 14 moves up to the limit position: when the piston 5 and the piston rod 12 connected with the outside are lifted to a certain height, the vent pipe 8 on the piston rod 12 connected with the outside is communicated with the air inlet pipe 10, at the moment, after entering the vent pipe 8 on the piston rod 12 connected with the outside, air can be guided into the space on the upper surface of the piston rod 12 connected with the outside and the inner cavity of the pneumatic piston vibrator through the one-way air guide pipe 9, at the moment, the upper air pressure is gradually higher than the lower air pressure, the piston 5 and the piston rod 12 connected with the outside gradually stop lifting, and the hollow moving cam 14 also stops lifting and starts lifting.
The hollow moving cam 14 descends: under the action of air pressure, the piston 5 and the piston rod 12 connected with the outside move downwards to drive the hollow moving cam 14 to move downwards, and the bearing stop block 17 drives the direct-acting roller eccentric block 15 to perform horizontal linear motion under the action of the cam driving piece, so that the direct-acting roller eccentric block 15 transmits horizontal vibration by striking the inner wall 1 of the drill rod.
The hollow moving cam 14 descends to the limit position: when the piston 5 descends to the position, connected with the outside, of the piston rod 12, the vent pipe 8 is communicated with the air outlet hole 6, the vent pipe 8 on the piston rod 12 connected with the outside is blocked, the unidirectional air duct 9 is not in air circulation, air at the upper part of the piston 5 is discharged through the air outlet hole 6, so that the upper pressure is gradually weakened, the lower pressure is gradually increased, and when the pneumatic piston vibrator and the hollow moving cam 14 are in a limiting position, the instantaneous speed is reset to zero, and for the next descending standby, one vibration cycle is ended, and the next cycle is started.
The cushion pad 3 and the baffle plate 2 can effectively fix the whole pneumatic piston vibrator, and reduce energy loss, so that the piston rod 12 and the piston 5 connected with the outside can vibrate more stably in the axial direction.
The cushion pad 3 can effectively relieve noise caused by vibration of the pneumatic piston vibrator.
The block on the linear motion roller eccentric block 15 which moves horizontally and linearly uses the bearing block 17, and the friction and impact effects can be greatly reduced.
The linear motion roller eccentric block fixing device 16 is connected with the inner wall 1 of the drill rod to limit the linear motion roller eccentric block 15 to move in the horizontal direction only.
The left and right sets of hollow moving cams 14 differ by half a period, so that the vibration periods of the left and right sets of direct-acting roller eccentric blocks 15 are controlled to differ by half.
The reason that this drilling rod mechanism can realize high frequency transverse vibration is that:
and (3) a step of: the hollow moving cam 14 has three periods of concave-convex, when the pneumatic piston vibrator vibrates downwards, the hollow moving cam 14 can drive the left and right linear motion roller eccentric blocks 15 to complete three periods of vibration, when the pneumatic piston vibrator vibrates upwards, the hollow moving cam 14 can drive the left and right linear motion roller eccentric blocks 15 to complete three periods of vibration, and when the pneumatic piston vibrator vibrates for one period, the left and right groups of linear motion roller eccentric blocks 15 vibrate for six periods respectively.
And II: the left and right groups of hollow moving cams 14 are different by half period, so that the vibration periods of the left and right groups of straight moving roller eccentric blocks 15 are controlled to be different by half period, and the transverse vibration frequency of the mechanism is improved again through superposition of the vibration frequencies of the left and right groups of straight moving roller eccentric blocks 15.
Claims (4)
1. The utility model provides a high frequency transverse vibration's drilling rod, includes drilling rod inner wall (1) and drilling rod (18), its characterized in that: the upper end of the drill rod (18) is connected with a baffle plate (2) and a buffer pad (3), the baffle plate (2) and the buffer pad (3) are connected with a pneumatic piston vibrator, the lower end of the drill rod (18) is provided with a direct-acting roller follower, a moving cam mechanism and a drill bit, the pneumatic piston vibrator comprises a shell (4), a piston (5), an air outlet hole (6), an air inlet hole (7), an air vent pipe (8), a unidirectional air guide pipe (9), an air inlet pipe (10) and a piston rod (12) connected with the outside, the cam mechanism comprises a connecting disc (13), a hollow moving cam (14), a direct-acting roller eccentric block (15) and a direct-acting roller eccentric block fixing device (16), the pneumatic piston vibrator is directly connected with the hollow moving cam (14), the hollow moving cam (14) is provided with a left group and a right group, the hollow moving cam (14) is connected with a direct-acting roller eccentric block (15), the left group and the right group of the hollow moving cam (14) are respectively provided with three periodic concave-convex and-convex, the left group and the right group of the hollow moving cam (14) is provided with a direct-acting roller eccentric block (15), the two eccentric blocks (16) are connected with the two direct-acting roller eccentric blocks (16) on the inner wall (1), one side of the straight-acting roller eccentric block fixing device (16) is embedded in the straight-acting roller eccentric block (15).
2. A high frequency laterally oscillating drill rod according to claim 1, wherein: the air outlet hole (6), the air inlet hole (7), the air pipe (8), the unidirectional air guide pipe (9) and the air inlet pipe (10) are used for air inlet and air outlet of the pneumatic piston vibrator.
3. A high frequency laterally oscillating drill rod according to claim 1, wherein: the pneumatic piston vibrator is integrally fixed and reciprocates through a piston rod (12) connected to the outside.
4. A high frequency laterally oscillating drill rod according to claim 1, wherein: the pneumatic piston vibrator and the hollow movable cam (14) are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320629971.7U CN220486410U (en) | 2023-03-27 | 2023-03-27 | High-frequency transverse vibration type drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320629971.7U CN220486410U (en) | 2023-03-27 | 2023-03-27 | High-frequency transverse vibration type drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220486410U true CN220486410U (en) | 2024-02-13 |
Family
ID=89828693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320629971.7U Active CN220486410U (en) | 2023-03-27 | 2023-03-27 | High-frequency transverse vibration type drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220486410U (en) |
-
2023
- 2023-03-27 CN CN202320629971.7U patent/CN220486410U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220486410U (en) | High-frequency transverse vibration type drill rod | |
| CN105259453A (en) | Floating body rope wheel wave power generation land simulation test platform | |
| CN212642569U (en) | Double-rope impact hammer and reverse circulation deslagging grooving machine | |
| CN201109911Y (en) | Shake pile pressing machine | |
| CN210117712U (en) | Stirring grooving insertion type prefabricated combined box foundation structure | |
| CN102689349A (en) | Multi-stage combined vibration isolation and vibration damping device of automatic molding machine of building block | |
| CN214940020U (en) | Civil engineering foundation tamping device for construction | |
| CN106930311B (en) | Assembled building anti-seismic foundation and building | |
| CN208816269U (en) | A kind of fixed wind energy of four based on suction tube-wave energy integrated power generation system | |
| CN220748203U (en) | Transverse high-frequency vibration type drill rod suitable for soft foundation | |
| CN207160006U (en) | A kind of efficiently deep trench backfill stone flour slag ramming device | |
| CN115748654A (en) | Bidirectional vibroflotation device and construction method thereof | |
| CN212175788U (en) | Simple concrete vibrating device | |
| CN211573913U (en) | Lifting oil cylinder of hydraulic hammer and valve block combination thereof | |
| CN108560577A (en) | Ocean wind-powered electricity generation stake bucket composite foundation | |
| CN211773548U (en) | Hand-held automatic unhooking dynamic compactor | |
| CN211370602U (en) | Buoyancy pendulum mechanism and oscillating water column type wave energy power generation device | |
| CN2537848Y (en) | Double plunger hydraulic hammer | |
| CN210104742U (en) | Hydraulic vibration pile hammer for constructional engineering | |
| CN208844538U (en) | A kind of small rammer for building | |
| CN210314034U (en) | Environment-friendly multifunctional wall brick | |
| CN203978704U (en) | A kind of freely many floats wave energy generating set | |
| CN112096666A (en) | Hydraulic integrated valve block | |
| CN100486778C (en) | Electromagnetically vibrating impactor | |
| CN111005909B (en) | Lifting cylinder of hydraulic hammer and valve block combination thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |