CN111058769A - Drilling equipment that civil engineering pile foundation used - Google Patents
Drilling equipment that civil engineering pile foundation used Download PDFInfo
- Publication number
- CN111058769A CN111058769A CN202010148960.8A CN202010148960A CN111058769A CN 111058769 A CN111058769 A CN 111058769A CN 202010148960 A CN202010148960 A CN 202010148960A CN 111058769 A CN111058769 A CN 111058769A
- Authority
- CN
- China
- Prior art keywords
- impact piece
- impact
- piece
- pull rod
- square
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 238000007789 sealing Methods 0.000 claims description 33
- 230000007246 mechanism Effects 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 22
- 230000008569 process Effects 0.000 abstract description 20
- 230000009471 action Effects 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 5
- 230000003116 impacting effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000009527 percussion Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002002 slurry Substances 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
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
-
- 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
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention belongs to the technical field of drilling, and particularly relates to a drilling device for a civil engineering pile foundation, which comprises a first impact piece and a second impact piece, wherein the first impact piece and the second impact piece can rotate relatively; according to the invention, the arc-shaped hole and the force transmission plate are designed, when the first impact piece and the second impact piece fall under the action of gravity, after the lower end of the second impact piece is contacted with the bottom surface of the hole, the impact force transmitted to the second impact piece is transmitted to the first impact piece through the two force transmission rods arranged on the second impact piece, and the stability of the first impact piece and the second impact piece in the process of impacting the bottom surface of the hole is improved.
Description
Technical Field
The invention belongs to the technical field of drilling, and particularly relates to a drilling device for a civil engineering pile foundation.
Background
The percussion drill is generally cross-shaped, and can strike a part of the bottom surface of the hole by each strike; in the up-and-down impact movement for many times, the impact drill rotates randomly, and the bottom surface of the hole is impacted uniformly; however, when the number of times of impact is small, the nonuniformity of the bottom of the hole caused by impact is obvious, and when the impact is carried out for many times, if the nonuniform impact occurs, the hole deviation can be caused; it is therefore necessary to design a percussion drill with a high relative impact uniformity.
The invention designs a drilling device for a civil engineering pile foundation to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a drilling device for a civil engineering pile foundation, which is realized by adopting the following technical scheme.
A drilling device for a civil engineering pile foundation comprises a first impact piece and a second impact piece, wherein the first impact piece and the second impact piece form a complete impact drill; the method is characterized in that: the lower ends of the first impact piece and the second impact piece are mutually matched in a staggered manner; a pull rod is slidably mounted at the upper end of the first impact piece, and a return spring is mounted between the pull rod and the first impact piece; when the pull rod slides outwards relative to the first impact piece, the first impact piece and the second impact piece are driven to rotate around the axis of the pull rod through the transmission mechanism, and the included angle is gradually reduced from the original ninety-degree state; when the pull rod slides inwards relative to the first striking piece, the transmission mechanism drives the first striking piece and the second striking piece to rotate around the axis of the pull rod, and the included angle is restored to the original ninety-degree state.
As a further improvement of the technology, the upper end of the first impact member is symmetrically provided with two force transmission plates, the upper end of the first impact member is provided with a pull rod hole, the lower end of the pull rod hole is provided with a spring installation groove, and the lower end of the spring installation groove is provided with a hexagonal groove; the front side surface and the rear side surface of the first impact piece are provided with square through holes, and the square through holes are communicated with the hexagonal grooves; a square groove is formed on the bottom surface of the square through hole; a plurality of swing through grooves are uniformly formed in the front side surface and the rear side surface of the first impact piece above and below the lower side of the square through hole, and circular holes penetrating through all the swing through grooves are formed between the upper end surface of the swing through groove at the lowest side and the bottom surface of the square groove; a wear-resistant gasket of a square-shaped type is arranged in each swing through groove; the upper end of the first impact piece is provided with two arc-shaped holes which are symmetrically distributed; two impact arc plates are symmetrically arranged at the lower end of the first impact piece, and impact blocks are arranged on the lower end surfaces of the impact arc plates and the lower end surface of the first impact piece.
A plurality of swing through grooves are uniformly formed in the front side surface and the rear side surface of the second impact piece from top to bottom, circular holes penetrating through all the swing through grooves are formed between the upper end surface of the swing through groove at the lowest side and the bottom surface of the square groove, and two guide grooves are uniformly formed in each circular hole in the circumferential direction; a wear-resistant gasket of a square-shaped type is arranged in each swing through groove; the second impact piece is arranged on the first impact piece through the swinging through groove formed in the second impact piece and the swinging through groove formed in the first impact piece in a mutually staggered fit manner; the two dowel bars are symmetrically arranged at the upper end of the second impact piece, the upper ends of the two dowel bars are provided with a dowel ring, and the dowel ring penetrates through an arc-shaped hole formed in the first impact piece and is in sliding fit with the two arc-shaped holes; the upper end of the force transmission ring is in contact fit with two force transmission plates arranged on the first impact piece; two impact arc plates are symmetrically arranged at the lower end of the second impact piece, and impact blocks are arranged on the lower end surfaces of the impact arc plates and the second impact piece.
The pull rod is arranged in a pull rod hole formed in the first impact piece in a sliding fit mode, and the lower end of the pull rod is located in the hexagonal groove; the hexagonal sliding block is fixedly arranged at the lower end of the pull rod, and a return spring is arranged between the upper end surface of the hexagonal sliding block and the upper end surface of the spring mounting groove; the reset spring plays a reset role on the pull rod, namely plays a reset role on the relative rotation of the first impact piece and the second impact piece triggered by the pull rod; the upper end of the pull rod is fixedly provided with a pull ring; the driving rotating shaft is uniformly provided with a plurality of driving sleeves along the axis direction, two guide blocks are uniformly arranged on the outer circular surface of each driving sleeve in the circumferential direction, the driving rotating shaft is inserted into circular holes formed in the first impact piece and the second impact piece, the driving rotating shaft is in rotating fit with the circular hole formed in the first impact piece, and the guide blocks on the driving sleeves arranged on the driving rotating shaft are in one-to-one corresponding fit with the guide grooves formed in the second driving piece; the upper end of the driving rotating shaft is fixedly arranged in a square groove formed in the first impact piece through a stable support.
The transmission mechanism is arranged in a square through hole formed in the first impact piece, the pull rod is connected with the driving rotating shaft through the transmission mechanism, and the pull rod slides relative to the first impact piece and controls the driving rotating shaft to rotate through the transmission mechanism.
As a further improvement of the technology, the transmission mechanism comprises a wheel wrapping guide rail, a support lug, a sliding block, a swinging plate, a gear, a rack and a guide support, wherein two sliding chutes are symmetrically formed in two side surfaces of a square through hole formed in the first impact piece, and two ends of the guide rail are arranged in the sliding chutes in a sliding fit manner; the sliding groove has the function of guiding the sliding of the guide rail, and in the process that the pull rod drives the two sliding blocks to slide through the support lug, the guide rail provided with the two sliding blocks is prevented from being driven to slide in the square through hole formed in the first impact piece and interfering with the side surface of the square through hole in order to adapt to the sliding of the two sliding blocks; the support lug is fixedly arranged at the lower end of the pull rod; the two sliding blocks are symmetrically and slidably mounted on the guide rail, the two sliding blocks are connected with the support lugs through two symmetrically distributed swing plates respectively, the two swing plates are connected with the support lugs through revolute pairs, and the two swing plates are connected with the corresponding sliding blocks through revolute pairs; the two sliding blocks are respectively connected with two side surfaces of a square groove formed in the first impact piece through two symmetrically distributed swing plates; the two swing plates are connected with the side surfaces of the square grooves through revolute pairs, and the two swing plates are connected with the corresponding sliding blocks through revolute pairs; the gear is fixedly arranged at the upper end of the driving rotating shaft, the two racks are respectively arranged in the square through hole formed in the first impact piece through a guide support, one ends of the two racks are respectively arranged on the two sliding blocks in a one-to-one correspondence mode, and the two racks are respectively meshed with the gear; the two guide supports are fixedly arranged on the two sliding blocks in a one-to-one correspondence manner; the guide supports play a role in guiding the corresponding racks, meanwhile, the guide rail can drive the two racks to slide through the two guide supports in the sliding process, and the two racks slide up and down relative to the gear along the teeth of the gear in the sliding process; but the sliding does not affect the meshing of the gear and the two racks; in order to meet the meshing condition, the width of the gear is required to meet the design requirement; the two racks are distributed in 180 degrees by taking the gear as a center.
As a further improvement of the technology, a first sealing ring is arranged between the pull rod and the pull rod hole; the first sealing ring is used for sealing the spaces, positioned at the two ends of the first sealing ring, of the first impact piece in the sliding process of the pull rod; a second sealing ring is arranged between the upper end of the driving rotating shaft and a circular hole on the lower side of the square groove formed in the first impact piece; the second sealing ring has the function of sealing the spaces, positioned at the two ends of the second sealing ring, on the first impact piece in the process of driving the rotating shaft to rotate; the front end surface and the rear end surface of the square through hole formed in the first impact piece are respectively provided with a sealing plate, gaskets are respectively arranged between the two sealing plates and the two end surfaces of the first impact piece in a cushioning manner, and the two sealing plates and the front end surface and the rear end surface of the first impact piece are fixed through screws; the sealing plate is used for sealing the square through hole formed in the first impact piece, and the gasket is used for further improving the sealing performance of the square through hole formed in the first impact piece.
As a further improvement of the technology, the upper end of the pull rod is provided with a limit ring, the limit ring is positioned on the upper side of the first impact piece, and the limit ring is matched with the upper end surface of the first impact piece; the projection area of the first impact piece in the normal direction of the first impact piece is larger than the projection area of the second impact piece, the dowel bar and the dowel plate in the normal direction of the second impact piece; the limiting ring is used for limiting the downward sliding of the pull rod and preventing the pull rod from completely sliding into the pull rod hole under the action of the pre-pressure force of the return spring.
Compared with the traditional drilling technology, the drilling technology has the following beneficial effects:
1. the first impact piece and the second impact piece can rotate relatively, and in the relative rotation process, the contact area between the bottom surface of the hole and the impact drill composed of the first impact piece and the second impact piece is relatively changed, so that the first impact piece and the second impact piece can impact the bottom of the hole relatively uniformly, and the hole deviation phenomenon is prevented to a certain extent.
2. The wear-resistant washers are arranged on the first impact piece and the second impact piece, so that the mutual abrasion degree of the first impact piece and the second impact piece in the relative rotation process is reduced through the wear-resistant washers, and the service life of the first impact piece and the second impact piece is prolonged.
3. According to the invention, the arc-shaped hole and the force transmission plate are designed, when the first impact piece and the second impact piece fall under the action of gravity, after the lower end of the second impact piece is contacted with the bottom surface of the hole, the impact force transmitted to the second impact piece can be transmitted to the force transmission ring through the two force transmission rods arranged on the second impact piece, and the force transmission ring is transmitted to the first impact piece through the arc-shaped hole and the force transmission plate, so that the stability of the first impact piece and the second impact piece in the process of impacting the bottom surface of the hole is improved.
Drawings
Fig. 1 is an external view of an entire part.
FIG. 2 is a schematic view of a bump distribution.
Fig. 3 is a schematic view of the internal structure of the integral unit.
Fig. 4 is a schematic diagram of a transmission arrangement.
Fig. 5 is a schematic view of the second striker structure.
FIG. 6 is a schematic view of the first striker and the second striker in cooperation.
Fig. 7 is a schematic view of a first impact configuration.
Fig. 8 is a schematic view of the seal plate mounting.
Fig. 9 is a schematic view of the connection between the pull rod and the driving shaft.
Fig. 10 is a schematic diagram of the transmission mechanism.
Fig. 11 is a schematic view of a driving shaft structure.
Fig. 12 is a schematic view of a gear and rack drive.
Number designation in the figures: 1. a pull ring; 2. a first striker; 3. a second striker; 4. bumping the block; 5. a pull rod; 6. a return spring; 7. a transmission mechanism; 8. driving the rotating shaft; 9. a first seal ring; 10. stably supporting; 11. a second seal ring; 12. a guide rail; 13. a sealing plate; 14. a gasket; 15. a force transmission ring; 16. a dowel bar; 17. a wear-resistant washer; 18. striking the arc plate; 19. a guide groove; 20. a drive sleeve; 21. a circular hole; 22. a force transmission plate; 23. a square through hole; 24. swinging the through groove; 25. a hexagonal groove; 26. a draw bar hole; 27. a square groove; 28. a chute; 29. a limiting ring; 30. a hexagonal slider; 31. supporting a lug; 32. a slider; 33. a swinging plate; 34. a guide block; 35. a gear; 36. a rack; 37. a guide support; 38. a spring mounting groove; 40. an arc-shaped hole.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, it comprises a first striker 2 and a second striker 3, wherein the first striker 2 and the second striker 3 form a complete percussion drill; the method is characterized in that: the lower ends of the first impacting piece 2 and the second impacting piece 3 are mutually matched in a staggered way; a pull rod 5 is slidably mounted at the upper end of the first impact piece 2, and a return spring 6 is mounted between the pull rod 5 and the first impact piece 2; when the pull rod 5 slides outwards relative to the first impact piece 2, the transmission mechanism 7 drives the first impact piece 2 and the second impact piece 3 to rotate around the axis of the pull rod 5 and the included angle is gradually reduced from the original ninety-degree state; when the pull rod 5 slides inwards relative to the first striker 2, the transmission mechanism 7 drives the first striker 2 and the second striker 3 to rotate around the axis of the pull rod 5 and the included angle returns to the original ninety-degree state.
The first impact piece 2 and the second impact piece 3 designed by the invention can rotate relatively, and in the process of relative rotation, because of the action of slurry resistance in a drilling hole and the friction resistance of the bottom surface of the drilling hole, the contact and impacted area of the bottom surface of the hole and the impact drill consisting of the first impact piece 2 and the second impact piece 3 can be changed relatively, so that the first impact piece 2 and the second impact piece 3 can impact the bottom of the hole relatively uniformly, and the phenomenon of hole deviation is prevented to a certain extent.
As shown in fig. 7, two force transmission plates 22 are symmetrically installed at the upper end of the first striker 2, a pull rod 5 hole is formed at the upper end of the first striker 2, a spring installation groove 38 is formed at the lower end of the pull rod 5 hole, and a hexagonal groove 25 is formed at the lower end of the spring installation groove 38; as shown in fig. 8, the front and rear side surfaces of the first striker 2 are provided with square through holes 23, and the square through holes 23 are communicated with the hexagonal groove 25; a square groove 27 is formed on the bottom surface of the square through hole 23; a plurality of swing through grooves 24 are uniformly formed in the front side surface and the rear side surface of the first impact piece 2 at the upper and lower sides of the square through hole 23, and a circular hole 21 penetrating through all the swing through grooves 24 is formed between the upper end surface of the swing through groove 24 at the lowest side and the bottom surface of the square groove 27; a wear-resistant gasket 17 in a shape of a Chinese character 'hui' is arranged in each swing through groove 24; the upper end of the first impact piece 2 is provided with two arc holes 40 which are symmetrically distributed; two striking arc plates 18 are symmetrically installed at the lower end of the first striking member 2, and as shown in fig. 2, striking blocks 4 are provided on the lower end surface of the striking arc plates 18 and the lower end surface of the first striking member 2.
As shown in fig. 5, a plurality of swing through grooves 24 are uniformly formed in the front and rear side surfaces of the second striker 3, circular holes 21 penetrating through all the swing through grooves 24 are formed between the upper end surface of the swing through groove 24 located at the lowest side and the bottom surface of the square groove 27, and two guide grooves 19 are uniformly formed in each circular hole 21 in the circumferential direction; a wear-resistant gasket 17 in a shape of a Chinese character 'hui' is arranged in each swing through groove 24; as shown in fig. 1, 3 and 4, the second striker 3 is mounted on the first striker 2 by the staggered fit of the swing through slots 24 formed in the second striker and the swing through slots 24 formed in the first striker 2; the two dowel bars 16 are symmetrically arranged at the upper end of the second impact piece 3, the upper ends of the two dowel bars 16 are provided with a dowel ring 15, and the dowel ring 15 passes through an arc-shaped hole 40 formed in the first impact piece 2 and is in sliding fit with the two arc-shaped holes 40; the upper end of the force transmission ring 15 is in contact fit with two force transmission plates 22 arranged on the first impact piece 2; two striking arc plates 18 are symmetrically installed at the lower end of the second striking member 3, and as shown in fig. 2, striking blocks 4 are provided on the lower end surface of the striking arc plate 18 and the lower end surface of the second striking member 3.
The wear-resistant washers 17 mounted on the first impact member 2 and the second impact member 3 in the invention have the functions of reducing the mutual abrasion degree of the first impact member 2 and the second impact member 3 in the relative rotation process and prolonging the service life of the first impact member 2 and the second impact member 3. According to the invention, the bottom ends of the first striker 2 and the second striker 3 are respectively provided with the striking block 4, and the striking block 4 is used for improving the striking efficiency of the first striker 2 and the second striker 3 on the hole bottom surface.
The arc-shaped hole 40 and the force transmission plate 22 designed by the invention have the effects that when the first impact piece 2 and the second impact piece 3 fall down under the action of gravity, after the lower end of the second impact piece 3 is contacted with the bottom surface of the hole, the first impact piece 2 and the second impact piece 3 can impact the bottom surface of the hole downwards, the bottom surface of the hole can reversely provide reverse impact force for the first impact piece 2 and the second impact piece 3, the impact force transmitted to the second impact piece 3 can be transmitted to the force transmission ring 15 through the two force transmission rods 16 arranged on the impact force transmission ring, and the force transmission ring 15 is transmitted to the first impact piece 2 through the arc-shaped hole 40; on the other hand, to the first striker 2 via the dowel bar 16, in order to improve the stability of the first striker 2 and the second striker 3 during impact with the hole bottom.
In the invention, the impact force received by the second impact member 3 is transmitted to the first impact member 2 through the swing through groove 24, the force transmission ring 15 and the force transmission plate 22 which are formed on the first impact member 2 and the second impact member 3, zero clearance fit at three positions cannot be ensured in actual manufacturing, so that transmission of all three forces cannot be ensured, and the three positions are gradually and forcefully transmitted after one-end time abrasion in the using process, and finally the impact force is transmitted at three positions.
As shown in fig. 3, 4 and 9, the pull rod 5 is installed in a pull rod 5 hole formed in the first striker 2 by sliding fit, and the lower end of the pull rod 5 is located in the hexagonal groove 25; the hexagonal slider 30 is fixedly arranged at the lower end of the pull rod 5, and the return spring 6 is arranged between the upper end surface of the hexagonal slider 30 and the upper end surface of the spring mounting groove 38; the function of the return spring 6 is to return the pull rod 5, namely to return the relative rotation of the first striker 2 and the second striker 3 triggered by the pull rod 5; the upper end of the pull rod 5 is fixedly provided with a pull ring 1; as shown in fig. 11, a plurality of driving sleeves 20 are uniformly installed on the driving shaft 8 along the axial direction, two guide blocks 34 are uniformly installed on the outer circumferential surface of the driving sleeve 20 in the circumferential direction, as shown in fig. 3, 4 and 6, the driving shaft 8 is installed in the circular holes 21 formed on the first striking member 2 and the second striking member 3 in an inserting manner, the driving shaft 8 is rotatably matched with the circular hole 21 formed on the first striking member 2, and the guide blocks 34 on the driving sleeve 20 installed on the driving shaft 8 are matched with the guide grooves 19 formed on the second driving member in a one-to-one correspondence manner; the upper end of the driving shaft 8 is fixedly mounted in a square groove 27 formed in the first striker 2 by a fixing support 10.
The function of the stable support 10 designed by the invention is to stabilize the driving rotating shaft 8. In the invention, the rotation of the driving rotating shaft 8 drives the second impact member 3 to rotate through the matching of the guide block 34 on the driving sleeve 20 and the guide groove 19 formed on the second impact member 3; since the driving shaft 8 is rotatably engaged with the circular hole 21 formed in the first striking member 2, the driving shaft 8 does not drive the first striking member 2 to rotate during the rotation process. The design of the pull ring 1 is convenient for connecting with a lifting rope in a pile drilling driving mechanism.
When the impact drill composed of the first impact part 2 and the second impact part 3 is pulled upwards, because the first impact drill and the second impact drill have gravity, a lifting rope in the pile drilling driving mechanism firstly pulls the pull rod 5 upwards to enable the pull rod 5 to slide upwards relative to the first impact part 2, the first impact part 2 slides upwards to drive the hexagonal slider 30 arranged on the first impact part to move upwards, and the hexagonal slider 30 slides upwards to extrude the return spring 6 so as to enable the return spring 6 to exert force; at the same time, the pull rod 5 slides upwards to drive the driving rotating shaft 8 to rotate through the transmission mechanism 7, and the driving rotating shaft 8 drives the second impact member 3 to rotate through the matching of the guide block 34 on the driving sleeve 20 and the guide groove 19 formed in the second impact member 3.
As shown in fig. 3 and 4, the transmission mechanism 7 is installed in a square through hole 23 formed in the first striker 2, the pull rod 5 is connected with the driving shaft 8 through the transmission mechanism 7, and the pull rod 5 slides relative to the first striker 2 and controls the driving shaft 8 to rotate through the transmission mechanism 7.
As shown in fig. 10 and 12, the transmission mechanism 7 includes a wheel guide rail 12, a support lug 31, a slide block 32, a swing plate 33, a gear 35, a rack 36, and a guide support 37, wherein as shown in fig. 10, two sliding grooves 28 are symmetrically formed on two side surfaces of a square through hole 23 formed in the first striker 2, and two ends of the guide rail 12 are installed in the sliding grooves 28 by sliding fit; the sliding groove 28 is used for guiding the sliding of the guide rail 12, and in the process that the pull rod 5 drives the two sliding blocks 32 to slide through the support lugs 31, the guide rail 12 provided with the two sliding blocks 32 is prevented from sliding in the square through hole 23 formed in the first impact piece 2 and interfering with the side surface of the square through hole 23 in order to adapt to the sliding of the two sliding blocks 32; the support lug 31 is fixedly arranged at the lower end of the pull rod 5; the two sliding blocks 32 are symmetrically and slidably mounted on the guide rail 12, the two sliding blocks 32 are connected with the support lug 31 through two symmetrically distributed swing plates 33 respectively, the two swing plates 33 are connected with the support lug 31 through a revolute pair, and the two swing plates 33 are connected with the corresponding sliding blocks 32 through revolute pairs; the two sliding blocks 32 are respectively connected with two side surfaces of the square groove 27 formed on the first impact piece 2 through two symmetrically distributed swing plates 33; the two swing plates 33 are connected with the side surfaces of the square groove 27 through revolute pairs, and the two swing plates 33 are connected with the corresponding sliding blocks 32 through revolute pairs; the gear 35 is fixedly installed at the upper end of the driving rotating shaft 8, as shown in fig. 12, two racks 36 are respectively installed in the square through hole 23 formed in the first striking member 2 through a guide support 37, and one ends of the two racks 36 are respectively installed on the two sliders 32 in a one-to-one correspondence manner, and the two racks 36 are respectively engaged with the gear 35; the two guide supports 37 are fixedly arranged on the two sliding blocks 32 in a one-to-one correspondence manner; the guide supports 37 guide the corresponding racks 36, and meanwhile, the guide rail 12 can drive the two racks 36 to slide through the two guide supports 37 in the sliding process, and in the sliding process, the two racks 36 slide up and down along the teeth of the gear 35 relative to the gear 35; but the sliding does not affect the meshing of the gear 35 and the two racks 36; to satisfy the above engagement condition, the width of the gear 35 should satisfy the design requirement; the two racks 36 are distributed 180 degrees around the gear 35.
When the pull rod 5 slides, the pull rod 5 pulls the four swing plates 33 connected with the support lugs 31 to swing through the support lugs 31 arranged on the pull rod, the four swing plates 33 swing to drive the two sliding blocks 32 to slide on the guide rail 12, and meanwhile, the guide rail 12 slides in the sliding groove 28 formed in the first impact piece 2 in order to adapt to the sliding of the two sliding blocks 32; the two sliding blocks 32 slide to drive the two racks 36 mounted thereon to slide, the two racks 36 slide to drive the gear 35 to rotate, and the gear 35 rotates to drive the driving rotating shaft 8 to rotate.
As shown in fig. 3, a first sealing ring 9 is installed between the pull rod 5 and the pull rod 5 hole; the first sealing ring 9 is used for sealing the spaces, positioned at two ends of the first sealing ring 9, on the first impact piece 2 in the sliding process of the pull rod 5; as shown in fig. 4 and 11, a second sealing ring 11 is arranged between the upper end of the driving rotating shaft 8 and the circular hole 21 at the lower side of the square groove 27 formed on the first impact piece 2; the second sealing ring 11 is used for sealing the spaces, positioned at two ends of the second sealing ring 11, on the first impact piece 2 in the process of driving the rotating shaft 8 to rotate; as shown in fig. 4 and 8, the front and rear end faces of the square through hole 23 formed in the first striker 2 are respectively provided with a sealing plate 13, gaskets 14 are respectively padded between the two sealing plates 13 and the two end faces of the first striker 2, and the two sealing plates 13 and the front and rear end faces of the first striker 2 are fixed by screws; the sealing plate 13 serves to seal the square through hole 23 formed in the first striker 2, and the gasket 14 serves to further improve the sealing performance of the square through hole 23 formed in the first striker 2.
As shown in fig. 9, a limiting ring 29 is mounted on the upper end of the pull rod 5, the limiting ring 29 is located on the upper side of the first striker 2, and the limiting ring 29 is engaged with the upper end surface of the first striker 2; the projection area of the first impact piece 2 in the normal direction is larger than the projection area of the second impact piece 3, the dowel bar 16 and the dowel plate 22 in the normal direction of the second impact piece 3; the limiting ring 29 is used for limiting the downward sliding of the pull rod 5 and preventing the pull rod 5 from completely sliding into the hole of the pull rod 5 under the action of the pre-pressure of the return spring 6.
The specific working process is as follows: when the drilling device designed by the invention is used, when the impact drill composed of the first impact member 2 and the second impact member 3 is pulled upwards, because the first impact drill and the second impact drill have gravity, a lifting rope in the pile drilling driving mechanism firstly pulls the pull rod 5 upwards, so that the pull rod 5 slides upwards relative to the first impact member 2, the first impact member 2 slides upwards to drive the hexagonal slider 30 arranged on the first impact member to move upwards, and the hexagonal slider 30 slides upwards to extrude the return spring 6, so that the return spring 6 exerts force; the pull rod 5 can pull the four swinging plates 33 connected with the support lugs 31 to swing through the support lugs 31 arranged on the pull rod, the four swinging plates 33 swing to drive the two sliding blocks 32 to slide on the guide rail 12, and meanwhile, the guide rail 12 slides in the sliding grooves 28 formed in the first impact piece 2 in order to adapt to the sliding of the two sliding blocks 32; the two sliding blocks 32 slide to drive the two racks 36 arranged on the sliding blocks to slide, the two racks 36 slide to drive the gear 35 to rotate, the gear 35 rotates to drive the driving rotating shaft 8 to rotate, and the driving rotating shaft 8 rotates to drive the second impact piece 3 to rotate through the matching of the guide block 34 on the driving sleeve 20 and the guide groove 19 formed in the second impact piece 3; however, when the first striking member 2 and the second striking member 3 are initially limited by the striking pits, the first striking member 2 and the second striking member 3 cannot rotate relatively, and because the depths of the striking pits struck by the first striking member 2 and the second striking member 3 on the bottom surface of the hole are generally different, when the first striking member 2 and the second striking member 3 are lifted upwards, the time for the first striking member 2 and the second striking member 3 to disengage from the corresponding striking pits is different, when the pull rod 5 is continuously pulled upwards, the striking member which is disengaged preferentially rotates relative to the other striking member, in the rotating process, after the other striking member also disengages from the corresponding striking member, the first striking member 2 and the second striking member 3 simultaneously approach to the middle, but when one of the first striking member 2 and the second striking member 3 is rotated relative to the other by an angle, the centers of the first striking member 2 and the second striking member 3 are rotated simultaneously, the centers of the first striking member 2 and the second striking member 3 are rotated downward relative to the original first striking member 2 and second striking member 3 When the first impact piece 2 and the second impact piece 3 impact and fall again, the lifting rope loses the binding tension on the pull rod 5, the pull rod 5 resets under the action of the return spring 6, and the pull rod 5 resets and drives the second impact piece 3 and the first impact piece 2 to open in a way that the existing centers rotate relatively through the transmission mechanism 7; because the first impact piece 2 and the second impact piece 3 have different projection areas as described above, the change included angle when the first impact piece 2 and the second impact piece 3 are combined simultaneously is smaller than the change included angle when the first impact piece 2 and the second impact piece 3 are opened simultaneously, and the resistance of the mud filled into the hole for cleaning the mud residues to the first impact piece 2 and the second impact piece 3 is different, so that the impact area is further deviated; finally, the areas of the first and second impact pieces 2 and 3, which are overlapped with the bottom surface of the hole from top to bottom, are offset relative to the areas of the first and second impact pieces 2 and 3, which are overlapped with the bottom surface of the hole from top to bottom when the first impact falls, namely, the areas of the first and second impact pieces 2 and 3, which are impacted on the bottom surface of the hole twice and are adjacent to each other, are artificially and automatically offset through design; first striking 2 and the second striking 3 of striking for traditional striking drilling equipment can realize the striking of relative even to the hole bottom, has prevented to a certain extent that the hole phenomenon deviates from.
Claims (5)
1. The utility model provides a drilling equipment that civil engineering pile foundation used which characterized in that: the impact drill comprises a first impact piece and a second impact piece, wherein the first impact piece and the second impact piece form a complete impact drill; the lower ends of the first impact piece and the second impact piece are mutually matched in a staggered manner; a pull rod is slidably mounted at the upper end of the first impact piece, and a return spring is mounted between the pull rod and the first impact piece; when the pull rod slides outwards relative to the first impact piece, the first impact piece and the second impact piece are driven to rotate around the axis of the pull rod through the transmission mechanism, and the included angle is gradually reduced from the original ninety-degree state; when the pull rod slides inwards relative to the first striking piece, the transmission mechanism drives the first striking piece and the second striking piece to rotate around the axis of the pull rod, and the included angle is restored to the original ninety-degree state.
2. The drilling device for a civil engineering pile foundation as claimed in claim 1, wherein: the upper end of the first impact piece is symmetrically provided with two force transmission plates, the upper end of the first impact piece is provided with a pull rod hole, the lower end of the pull rod hole is provided with a spring installation groove, and the lower end of the spring installation groove is provided with a hexagonal groove; the front side surface and the rear side surface of the first impact piece are provided with square through holes, and the square through holes are communicated with the hexagonal grooves; a square groove is formed on the bottom surface of the square through hole; a plurality of swing through grooves are uniformly formed in the front side surface and the rear side surface of the first impact piece above and below the lower side of the square through hole, and circular holes penetrating through all the swing through grooves are formed between the upper end surface of the swing through groove at the lowest side and the bottom surface of the square groove; a wear-resistant gasket of a square-shaped type is arranged in each swing through groove; the upper end of the first impact piece is provided with two arc-shaped holes which are symmetrically distributed; two impact arc plates are symmetrically arranged at the lower end of the first impact piece, and impact blocks are arranged on the lower end surfaces of the impact arc plates and the first impact piece;
a plurality of swing through grooves are uniformly formed in the front side surface and the rear side surface of the second impact piece from top to bottom, circular holes penetrating through all the swing through grooves are formed between the upper end surface of the swing through groove at the lowest side and the bottom surface of the square groove, and two guide grooves are uniformly formed in each circular hole in the circumferential direction; a wear-resistant gasket of a square-shaped type is arranged in each swing through groove; the second impact piece is arranged on the first impact piece through the swinging through groove formed in the second impact piece and the swinging through groove formed in the first impact piece in a mutually staggered fit manner; the two dowel bars are symmetrically arranged at the upper end of the second impact piece, the upper ends of the two dowel bars are provided with a dowel ring, and the dowel ring penetrates through an arc-shaped hole formed in the first impact piece and is in sliding fit with the two arc-shaped holes; the upper end of the force transmission ring is in contact fit with two force transmission plates arranged on the first impact piece; two impact arc plates are symmetrically arranged at the lower end of the second impact piece, and impact blocks are arranged on the lower end surfaces of the impact arc plates and the second impact piece;
the pull rod is arranged in a pull rod hole formed in the first impact piece in a sliding fit mode, and the lower end of the pull rod is located in the hexagonal groove; the hexagonal sliding block is fixedly arranged at the lower end of the pull rod, and a return spring is arranged between the upper end surface of the hexagonal sliding block and the upper end surface of the spring mounting groove; the upper end of the pull rod is fixedly provided with a pull ring; the driving rotating shaft is uniformly provided with a plurality of driving sleeves along the axis direction, two guide blocks are uniformly arranged on the outer circular surface of each driving sleeve in the circumferential direction, the driving rotating shaft is inserted into circular holes formed in the first impact piece and the second impact piece, the driving rotating shaft is in rotating fit with the circular hole formed in the first impact piece, and the guide blocks on the driving sleeves arranged on the driving rotating shaft are in one-to-one corresponding fit with the guide grooves formed in the second driving piece; the upper end of the driving rotating shaft is fixedly arranged in a square groove formed in the first impact piece through a stable support;
the transmission mechanism is arranged in a square through hole formed in the first impact piece, the pull rod is connected with the driving rotating shaft through the transmission mechanism, and the pull rod slides relative to the first impact piece and controls the driving rotating shaft to rotate through the transmission mechanism.
3. The drilling device for a civil engineering pile foundation as claimed in claim 2, wherein: the transmission mechanism comprises a wheel wrapping guide rail, a support lug, a sliding block, a swinging plate, a gear, a rack and a guide support, wherein two sliding chutes are symmetrically formed in two side surfaces of a square through hole formed in the first impact piece, and two ends of the guide rail are arranged in the sliding chutes in a sliding fit manner; the support lug is fixedly arranged at the lower end of the pull rod; the two sliding blocks are symmetrically and slidably mounted on the guide rail, the two sliding blocks are connected with the support lugs through two symmetrically distributed swing plates respectively, the two swing plates are connected with the support lugs through revolute pairs, and the two swing plates are connected with the corresponding sliding blocks through revolute pairs; the two sliding blocks are respectively connected with two side surfaces of a square groove formed in the first impact piece through two symmetrically distributed swing plates; the two swing plates are connected with the side surfaces of the square grooves through revolute pairs, and the two swing plates are connected with the corresponding sliding blocks through revolute pairs; the gear is fixedly arranged at the upper end of the driving rotating shaft, the two racks are respectively arranged in the square through hole formed in the first impact piece through a guide support, one ends of the two racks are respectively arranged on the two sliding blocks in a one-to-one correspondence mode, and the two racks are respectively meshed with the gear; the two guide supports are fixedly arranged on the two sliding blocks in a one-to-one correspondence manner; the two racks are distributed in 180 degrees by taking the gear as a center.
4. The drilling device for a civil engineering pile foundation as claimed in claim 1, wherein: a first sealing ring is arranged between the pull rod and the pull rod hole; a second sealing ring is arranged between the upper end of the driving rotating shaft and a circular hole on the lower side of the square groove formed in the first impact piece; the front end face and the rear end face of the square through hole formed in the first impact piece are respectively provided with a sealing plate, gaskets are respectively arranged between the two sealing plates and the two end faces of the first impact piece in a padding mode, and the two sealing plates and the front end face and the rear end face of the first impact piece are fixed through screws.
5. The drilling device for a civil engineering pile foundation as claimed in claim 1, wherein: the upper end of the pull rod is provided with a limiting ring, the limiting ring is positioned on the upper side of the first impact piece, and the limiting ring is matched with the upper end surface of the first impact piece; the projection area of the first impact piece in the normal direction of the first impact piece is larger than the projection area of the second impact piece, the dowel bar and the dowel plate in the normal direction of the second impact piece.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010974122.6A CN112031660B (en) | 2020-03-05 | 2020-03-05 | Drilling equipment that civil engineering pile foundation used |
| CN202010148960.8A CN111058769B (en) | 2020-03-05 | 2020-03-05 | Drilling equipment that civil engineering pile foundation used |
| JP2021000200A JP6949403B2 (en) | 2020-03-05 | 2021-01-04 | Drilling equipment used for pile foundation work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010148960.8A CN111058769B (en) | 2020-03-05 | 2020-03-05 | Drilling equipment that civil engineering pile foundation used |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010974122.6A Division CN112031660B (en) | 2020-03-05 | 2020-03-05 | Drilling equipment that civil engineering pile foundation used |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111058769A true CN111058769A (en) | 2020-04-24 |
| CN111058769B CN111058769B (en) | 2020-10-16 |
Family
ID=70307850
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010148960.8A Active CN111058769B (en) | 2020-03-05 | 2020-03-05 | Drilling equipment that civil engineering pile foundation used |
| CN202010974122.6A Active CN112031660B (en) | 2020-03-05 | 2020-03-05 | Drilling equipment that civil engineering pile foundation used |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010974122.6A Active CN112031660B (en) | 2020-03-05 | 2020-03-05 | Drilling equipment that civil engineering pile foundation used |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6949403B2 (en) |
| CN (2) | CN111058769B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266278A (en) * | 2020-10-29 | 2021-08-17 | 浙江华东工程建设管理有限公司 | A blasting drilling equipment for open mine excavation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112476647B (en) * | 2020-12-16 | 2022-05-03 | 杭州鎏金庐亮空间设计有限公司 | Wood drilling tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1984755A (en) * | 2004-07-02 | 2007-06-20 | 山特维克矿山工程机械有限公司 | Method for controlling percussion device, software product, and percussion device |
| US20080000662A1 (en) * | 2006-06-30 | 2008-01-03 | Tyer Robert C | Chain driven reciprocating hammer with automatic work piece input centering and clamping |
| CN101275458A (en) * | 2008-05-13 | 2008-10-01 | 张安禄 | Reverse circulation construction technique and apparatus of single rope impact drill |
| JP5132829B1 (en) * | 2012-06-06 | 2013-01-30 | 株式会社西部工建 | Hard ground excavation method |
| CN107724389A (en) * | 2017-11-10 | 2018-02-23 | 戴建敏 | One kind grouting piling integrated device |
| CN207296885U (en) * | 2017-09-12 | 2018-05-01 | 李隽� | High-efficient impacting drill bit is used in the construction of pile foundation impact holing |
| CN209942727U (en) * | 2018-11-22 | 2020-01-14 | 上海建工集团股份有限公司 | Impact hammer head for cast-in-place pile |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA970762A (en) * | 1973-05-22 | 1975-07-08 | Lewis B. Logan | Impact drive point |
| GB1584357A (en) * | 1977-10-31 | 1981-02-11 | Hollandsche Betongroep Nv | Pile driving apparatus |
| CN100494619C (en) * | 2007-06-06 | 2009-06-03 | 周洪生 | Construction method and device for pile foundation embedded in rock |
| CN101435312B (en) * | 2007-11-13 | 2013-06-19 | 上海金泰工程机械有限公司 | Multifunctional hammer drill |
| CN101871316B (en) * | 2010-06-23 | 2013-03-06 | 李恩怡 | Piling machine |
| CN207229010U (en) * | 2017-07-04 | 2018-04-13 | 深圳市孺子牛建设工程有限公司 | Pattern foundation pit supporting structure bored pile construction equipment |
| CN110359854A (en) * | 2019-09-02 | 2019-10-22 | 阚晓洁 | A kind of drill bit for building pile hole |
-
2020
- 2020-03-05 CN CN202010148960.8A patent/CN111058769B/en active Active
- 2020-03-05 CN CN202010974122.6A patent/CN112031660B/en active Active
-
2021
- 2021-01-04 JP JP2021000200A patent/JP6949403B2/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1984755A (en) * | 2004-07-02 | 2007-06-20 | 山特维克矿山工程机械有限公司 | Method for controlling percussion device, software product, and percussion device |
| US20080000662A1 (en) * | 2006-06-30 | 2008-01-03 | Tyer Robert C | Chain driven reciprocating hammer with automatic work piece input centering and clamping |
| CN101275458A (en) * | 2008-05-13 | 2008-10-01 | 张安禄 | Reverse circulation construction technique and apparatus of single rope impact drill |
| JP5132829B1 (en) * | 2012-06-06 | 2013-01-30 | 株式会社西部工建 | Hard ground excavation method |
| CN207296885U (en) * | 2017-09-12 | 2018-05-01 | 李隽� | High-efficient impacting drill bit is used in the construction of pile foundation impact holing |
| CN107724389A (en) * | 2017-11-10 | 2018-02-23 | 戴建敏 | One kind grouting piling integrated device |
| CN209942727U (en) * | 2018-11-22 | 2020-01-14 | 上海建工集团股份有限公司 | Impact hammer head for cast-in-place pile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266278A (en) * | 2020-10-29 | 2021-08-17 | 浙江华东工程建设管理有限公司 | A blasting drilling equipment for open mine excavation |
| CN113266278B (en) * | 2020-10-29 | 2023-10-13 | 浙江华东工程建设管理有限公司 | Blasting drilling equipment for surface mine excavation |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6949403B2 (en) | 2021-10-13 |
| CN112031660A (en) | 2020-12-04 |
| JP2021139277A (en) | 2021-09-16 |
| CN111058769B (en) | 2020-10-16 |
| CN112031660B (en) | 2022-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111058769B (en) | Drilling equipment that civil engineering pile foundation used | |
| CN104343385A (en) | Hydraulic impactor | |
| CN208472697U (en) | A kind of shockproof frog type rammer | |
| CN111101849A (en) | Impact drilling equipment convenient for cleaning holes and used for pile foundation | |
| CN116658097B (en) | Pile driver for constructional engineering | |
| CN111997034B (en) | Hydraulic tamper | |
| JP2006505728A (en) | Improved device | |
| CN216478627U (en) | Compound magnetic force adjusting drill bit impact damping device | |
| CN109440768A (en) | A kind of architectural engineering piling machine | |
| CN115839218A (en) | Highway construction rotary drilling device | |
| CN113106962A (en) | Tamping device for construction of building engineering foundation | |
| CN214704056U (en) | Down-pressure type ultra-deep underground pipeline detecting instrument | |
| CN114165547A (en) | Composite type magnetic force adjusting drill impact damping device and damping method | |
| CN213838494U (en) | High-efficiency power head of rotary drilling rig | |
| CN110686142A (en) | Vibration damping base for rotary drilling rig | |
| CN112065264A (en) | Millstone water well drilling machine for water conservancy pile foundation engineering | |
| CN219061550U (en) | High strength drill bit is with connecting fixed knot and constructs | |
| CN210368925U (en) | Efficient ramming machine | |
| CN219517939U (en) | Filter mechanism convenient to clean for hydraulic engineering | |
| CN215108707U (en) | Building real estate is with strikeing brill | |
| CN111485828A (en) | Piling equipment for building | |
| CN220575881U (en) | Make things convenient for engineering management of dismouting to use combination tool case | |
| CN108214404A (en) | A kind of knocking gear | |
| CN220036610U (en) | High-pressure jet grouting pile drill bit | |
| CN202239474U (en) | Piece jacking device for piece bunching machine for chain pieces of chain |
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 |