阅读说明：本技术 一种绿色建筑用的桩基础切桩设备 (Pile foundation pile cutting equipment for green building ) 是由 杨华 于 2020-06-29 设计创作，主要内容包括：本发明属于切桩技术领域,尤其涉及一种绿色建筑用的桩基础切桩设备,它包括固定连接筒、液压马达、驱动筒、安装筒、复位板簧、复位弹簧、切割扇形板、调节机构、上紧板簧,本发明在限位壳上远离切割扇形板一侧的端面与对应的限位卡块上的限位面接触后,如果被切割下的桩体不能通过重力掉落,切割扇形板还对切割下的桩体卡着,此时只需要继续旋转驱动筒,使得驱动筒上的限位杆继续带动其上安装的限位卡块移动,使得限位卡块上的第二斜面挤压限位壳,使得限位壳继续带动切割扇形板移动直到切割扇形板完全进入到安装筒下端的第三安装壳内,使得桩体掉落后,当桩体掉落后,切割扇形板在上紧板簧作用下使限位卡块通过限位面对切割扇形板限位。(The invention belongs to the technical field of pile cutting, and particularly relates to pile foundation pile cutting equipment for green buildings, which comprises a fixed connecting cylinder, a hydraulic motor, a driving cylinder, an installation cylinder, a reset plate spring, a reset spring, a cutting sector plate, an adjusting mechanism and a tightening plate spring, wherein after the end surface of one side of a limiting shell far away from the cutting sector plate is contacted with a limiting surface on a corresponding limiting fixture block, if a cut pile body cannot fall off through gravity, the cutting sector plate still clamps the cut pile body, at the moment, only the driving cylinder needs to be rotated continuously, a limiting rod on the driving cylinder continuously drives the limiting fixture block arranged on the driving cylinder to move, a second inclined surface on the limiting fixture block extrudes the limiting shell, the limiting shell continuously drives the cutting sector plate to move until the cutting sector plate completely enters a third installation shell at the lower end of the installation cylinder, and the pile body falls back, after the pile body falls, the cutting fan-shaped plate enables the limiting clamping block to limit the cutting fan-shaped plate through the limiting surface under the action of tightening the plate spring.)

1. The utility model provides a stake equipment is cut to pile foundation for green building which characterized in that: the hydraulic excavator comprises a fixed connecting cylinder, a hydraulic motor, a driving cylinder, an installation cylinder, a reset plate spring, a reset spring, a cutting sector plate, an adjusting mechanism, an upper tightening plate spring, a limiting rod and a limiting shell, wherein the upper end of the fixed connecting cylinder is provided with a connecting piece, and the fixed connecting cylinder is arranged on an execution component of the excavator through the connecting piece; the upper end of the driving cylinder is rotatably arranged on the outer side of the fixed connecting cylinder, and the lower end of the driving cylinder is provided with a second mounting shell; the hydraulic motor is arranged on the fixed connecting cylinder and controls the driving cylinder to rotate through the transmission of the gear and the gear ring; the lower end of the mounting cylinder is provided with a third mounting shell, the upper end of the mounting cylinder is rotatably mounted on the inner side of the fixed connecting cylinder, and the third mounting shell at the lower end of the mounting cylinder is positioned on the inner side of the second mounting shell at the lower end of the driving cylinder; a return spring is arranged between the upper end of the mounting cylinder and the fixed connecting cylinder; reset plate springs which are uniformly distributed in the circumferential direction are arranged between the mounting cylinder and the driving cylinder;

a plurality of cutting sector plates are uniformly arranged in the third mounting shell at the lower end of the mounting cylinder in the circumferential direction, and the cutting sector plates are in sliding fit with the third mounting shell along the radial direction of the third mounting shell; two tightening leaf springs are symmetrically arranged between each cutting sector plate and the inner end face of the third mounting shell; each cutting sector plate is provided with a limiting shell, a plurality of limiting rods are uniformly arranged on the inner circular surface of the second mounting shell at the lower end of the driving cylinder in the circumferential direction, each limiting rod is provided with a limiting fixture block, and the limiting fixture blocks are matched with the limiting shells in a one-to-one correspondence manner; an adjusting mechanism for controlling the reset of the corresponding cutting sector plate is respectively arranged between each cutting sector plate and the second mounting shell;

the upper end of the mounting cylinder is provided with a mounting disc, the lower end of the mounting disc is uniformly provided with a plurality of clamping blocks in the circumferential direction, the inner side of the fixed connecting cylinder is provided with a slotted platform, the upper end surface of the slotted platform is uniformly provided with a plurality of clamping grooves in the circumferential direction, and the clamping grooves and the clamping blocks are matched with each other in a one-to-one correspondence manner;

three groups of limiting blocks are uniformly and circumferentially arranged on the lower end surface of a third mounting shell at the lower end of the mounting cylinder, three shifting blocks are uniformly and circumferentially arranged on the bottom surface in a second mounting shell at the lower end of the driving cylinder, the three shifting blocks are matched with the three groups of limiting blocks, and the three shifting blocks are respectively positioned between two limiting blocks in the corresponding group;

the adjusting mechanism comprises a second gear, a third gear, a fourth gear, a telescopic push rod, a fixed support, a first rotating shaft, a second rotating shaft and a third rotating shaft, wherein one end of the fixed support is fixedly arranged on the outer circular surface of a third mounting shell at the lower end of the mounting cylinder, and one ends of the first rotating shaft, the second rotating shaft and the third rotating shaft are fixedly arranged on the fixed support; the fourth gear is rotatably arranged on the first rotating shaft and is meshed with the teeth on the inner circular surface of the second mounting shell, and the teeth on the fourth gear are in up-and-down sliding fit with the teeth on the inner circular surface of the second mounting shell; the third gear is rotatably arranged on the second rotating shaft and is meshed with the fourth gear; the second gear is rotatably arranged on the third rotating shaft and is meshed with the third gear; one end of the telescopic push rod is fixedly arranged on the outer cambered surface of the corresponding cutting sector plate;

the telescopic push rod comprises a telescopic inner rod, a sliding chute, a sliding block and a telescopic outer sleeve, wherein one end of the telescopic outer sleeve is fixedly arranged on the outer cambered surface of the corresponding cutting sector plate; a sliding groove is formed in the telescopic outer sleeve, teeth are arranged on one side of the telescopic inner rod, a sliding block is arranged at one end of the telescopic inner rod, one end of the telescopic inner rod is arranged in the telescopic outer sleeve through the matching of the sliding block and the sliding groove, and the teeth on the telescopic inner rod are meshed with the second gear; after the limiting surface of the limiting fixture block is limited on the limiting shell, namely the cutting sector plate is reset, a gap is formed between the sliding block and the end surface of the sliding groove;

the hydraulic motor is supported and installed on one side of the fixed connecting cylinder through the motor, the first gear is fixedly installed on an output shaft of the hydraulic motor, the gear ring is fixedly installed on the outer circular surface of the upper end of the driving cylinder, and the gear ring is meshed with the first gear;

the return spring is a compression spring and has pre-pressure; a limiting ring is arranged on the inner circular surface at the upper end of the fixed connecting cylinder, and an installation platform is arranged on the inner circular surface at the lower end of the fixed connecting cylinder; the mounting disc mounted on the mounting cylinder is matched with the limiting ring mounted on the fixed connecting cylinder, and the mounting disc is positioned on the lower side of the limiting ring; the upper end of the reset spring is fixedly arranged on the lower end surface of the mounting plate, and the lower end of the reset spring is arranged on the mounting platform;

the outer circle surface of the lower end of the fixed connecting cylinder is provided with an installation ring groove, the inner circle surface of the upper end of the driving cylinder is provided with an installation ring block, and the driving cylinder is installed on the outer side of the fixed connecting cylinder through the rotation matching of the installation ring block and the installation ring groove.

2. The pile foundation pile cutting equipment for green buildings according to claim 1, wherein: the driving cylinder is provided with a first mounting shell, two guide sliding grooves are formed in the outer circular surface of the mounting cylinder in a circumferential uniform mode, two guide sliding blocks are arranged in the inner circular surface of the mounting ring in a circumferential uniform mode, the mounting ring is arranged on the mounting cylinder through the two guide sliding blocks and the two guide sliding grooves in a sliding fit mode, one end of a reset plate spring mounted between the driving cylinder and the mounting cylinder is fixedly arranged on the outer circular surface of the mounting ring, and the other end of the reset plate spring is fixedly arranged on the inner circular surface of the first mounting shell.

3. The pile foundation pile cutting equipment for green buildings according to claim 1, wherein: a plurality of guide grooves which are symmetrically distributed up and down are respectively and circumferentially and uniformly arranged on the upper end surface and the lower end surface in a third mounting shell arranged at the lower end of the mounting cylinder along the radial direction; the upper end and the lower end of all the cutting sector plates installed in the third installation shell are respectively symmetrically provided with two guide blocks, and all the cutting sector plates installed in the third installation shell are installed in the third installation shell through the sliding fit of the two guide blocks on the cutting sector plates and the guide grooves formed in the third installation shell.

4. The pile foundation pile cutting equipment for green buildings according to claim 1, wherein: and one ends of all the cutting sector plates arranged in the third mounting shell, which are close to the center of the third mounting shell, are provided with inclined planes which are symmetrically distributed.

5. The pile foundation pile cutting equipment for green buildings according to claim 1, wherein: the limiting shell is internally provided with a limiting groove and is fixedly arranged on the outer cambered surface of the corresponding cutting sector plate; the limiting fixture block is provided with a first inclined surface and a second inclined surface, and a limiting surface is arranged between the first inclined surface and the second inclined surface; the limiting fixture blocks are matched with the limiting grooves on the corresponding limiting shells; the height of the limiting groove in the vertical direction is larger than the thickness of the limiting clamping block.

6. The pile foundation pile cutting equipment for green buildings according to claim 5, wherein: avoidance ports which are uniformly distributed in the circumferential direction are formed in the outer circular surface of the third mounting shell at the lower end of the mounting cylinder; the inner circular surface of the second mounting shell at the lower end of the driving cylinder is provided with teeth.

7. The pile foundation pile cutting equipment for green buildings according to claim 1, wherein: the lower end of the return spring is mounted on the mounting platform through a thrust bearing.

Technical Field

The invention belongs to the technical field of pile cutting, and particularly relates to pile foundation pile cutting equipment for green buildings.

Background

When a foundation is usually made for a high-rise building, a poured cement pile is adopted for reinforcement, and after pouring is finished, a section of the upper end of the pile is cut off, so that the cut-off upper end surfaces of all the piles are coplanar and horizontal; the specific operation flow is as follows:

1. and digging a section of each pile by using a small excavator.

2. The exposed pile is cut off manually with a cutter to ensure coplanarity.

3. The cut pile is excavated using an excavator.

Then pressurizing, and then adding reinforced cement to form the foundation.

As described above, there is a problem in the pile cutting process:

1. in the process of exposing a section of the pile by the excavator, the efficiency of the excavator is low because of the pile.

2. The cutting machine is used for cutting manually, and the efficiency is low.

3. The cut pile needs to be dug out by the excavator, and the digging efficiency is low because the pile is not a professional bucket but a common earth-digging bucket.

Therefore, the green building pile foundation pile cutting equipment capable of improving pile cutting and leveling efficiency is designed to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses pile foundation pile cutting equipment for a green building, which is realized by adopting the following technical scheme.

The utility model provides a stake equipment is cut to pile foundation for green building which characterized in that: the hydraulic excavator comprises a fixed connecting cylinder, a hydraulic motor, a driving cylinder, an installation cylinder, a reset plate spring, a reset spring, a cutting sector plate, an adjusting mechanism, an upper tightening plate spring, a limiting rod and a limiting shell, wherein the upper end of the fixed connecting cylinder is provided with a connecting piece, and the fixed connecting cylinder is arranged on an execution component of the excavator through the connecting piece; the upper end of the driving cylinder is rotatably arranged on the outer side of the fixed connecting cylinder, and the lower end of the driving cylinder is provided with a second mounting shell; the hydraulic motor is arranged on the fixed connecting cylinder and controls the driving cylinder to rotate through the transmission of the gear and the gear ring; the lower end of the mounting cylinder is provided with a third mounting shell, the upper end of the mounting cylinder is rotatably mounted on the inner side of the fixed connecting cylinder, and the third mounting shell at the lower end of the mounting cylinder is positioned on the inner side of the second mounting shell at the lower end of the driving cylinder; a return spring is arranged between the upper end of the mounting cylinder and the fixed connecting cylinder; reset plate springs which are uniformly distributed in the circumferential direction are arranged between the mounting cylinder and the driving cylinder.

A plurality of cutting sector plates are uniformly arranged in the third mounting shell at the lower end of the mounting cylinder in the circumferential direction, and the cutting sector plates are in sliding fit with the third mounting shell along the radial direction of the third mounting shell; two tightening leaf springs are symmetrically arranged between each cutting fan-shaped plate and the inner end face of the third mounting shell; each cutting sector plate is provided with a limiting shell, a plurality of limiting rods are uniformly arranged on the inner circular surface of the second mounting shell at the lower end of the driving cylinder in the circumferential direction, each limiting rod is provided with a limiting fixture block, and the limiting fixture blocks are matched with the limiting shells in a one-to-one correspondence manner; and an adjusting mechanism for controlling the reset of the corresponding cutting sector plate is respectively arranged between each cutting sector plate and the second mounting shell.

The upper end of above-mentioned installation section of thick bamboo has the mounting disc, and the even a plurality of fixture blocks of installing of lower extreme circumference of mounting disc, the inboard of fixed connection section of thick bamboo has the fluting platform, and the even division of circumference has a plurality of draw-in grooves on the up end of fluting platform, the draw-in groove is mutually supported with the fixture block one-to-one.

Three groups of limit blocks are uniformly arranged in the circumferential direction on the lower end face of the third installation shell at the lower end of the installation barrel, three shifting blocks are uniformly arranged in the circumferential direction on the bottom face in the second installation shell at the lower end of the driving barrel, the three shifting blocks are matched with the three groups of limit blocks, and the three shifting blocks are respectively positioned between two corresponding limit blocks in a group.

As a further improvement of the technology, the hydraulic motor is supported and installed on one side of the fixed connecting cylinder through the motor, the first gear is fixedly installed on an output shaft of the hydraulic motor, the gear ring is fixedly installed on the outer circular surface of the upper end of the driving cylinder, and the gear ring is meshed with the first gear.

As a further improvement of the present technology, the return spring is a compression spring and has a pre-pressure; a limiting ring is arranged on the inner circular surface at the upper end of the fixed connecting cylinder, and an installation platform is arranged on the inner circular surface at the lower end of the fixed connecting cylinder; the mounting disc mounted on the mounting cylinder is matched with the limiting ring mounted on the fixed connecting cylinder, and the mounting disc is positioned on the lower side of the limiting ring; the upper end of the reset spring is fixedly installed on the lower end face of the installation disc, and the lower end of the reset spring is installed on the installation platform.

As a further improvement of the technology, the outer circular surface of the lower end of the fixed connecting cylinder is provided with an installation ring groove, the inner circular surface of the upper end of the driving cylinder is provided with an installation ring block, and the driving cylinder is installed on the outer side of the fixed connecting cylinder through the rotating fit of the installation ring block and the installation ring groove.

As a further improvement of the technology, the driving cylinder is provided with a first mounting shell, the outer circular surface of the mounting cylinder is uniformly provided with two guide sliding chutes in the circumferential direction, the inner circular surface of the mounting ring is uniformly provided with two guide sliding blocks in the circumferential direction, the mounting ring is mounted on the mounting cylinder through the sliding fit of the two guide sliding blocks and the two guide sliding chutes, one end of the reset plate spring mounted between the driving cylinder and the mounting cylinder is fixedly mounted on the outer circular surface of the mounting ring, and the other end of the reset plate spring is fixedly mounted on the inner circular surface of the first mounting shell.

As a further improvement of the technology, a plurality of guide grooves which are distributed up and down symmetrically are respectively and circumferentially and uniformly arranged on the upper end surface and the lower end surface in a third mounting shell mounted at the lower end of the mounting cylinder along the radial direction; the upper end and the lower end of all the cutting sector plates installed in the third installation shell are respectively symmetrically provided with two guide blocks, and all the cutting sector plates installed in the third installation shell are installed in the third installation shell through the sliding fit of the two guide blocks on the cutting sector plates and the guide grooves formed in the third installation shell.

As a further improvement of the present technology, the ends of all the cutting sector plates installed in the third installation shell near the center of the third installation shell have symmetrically distributed inclined surfaces.

As a further improvement of the technology, a limiting groove is arranged in the limiting shell, and the limiting shell is fixedly arranged on the outer cambered surface of the corresponding cutting sector plate; the limiting fixture block is provided with a first inclined surface and a second inclined surface, and a limiting surface is arranged between the first inclined surface and the second inclined surface; the limiting fixture blocks are matched with the limiting grooves on the corresponding limiting shells; the height of the limiting groove in the vertical direction is larger than the thickness of the limiting clamping block.

As a further improvement of the technology, avoidance ports which are uniformly distributed in the circumferential direction are formed in the outer circumferential surface of the third mounting shell at the lower end of the mounting cylinder; the inner circular surface of the second mounting shell at the lower end of the driving cylinder is provided with teeth.

The adjusting mechanism comprises a second gear, a third gear, a fourth gear, a telescopic push rod, a fixed support, a first rotating shaft, a second rotating shaft and a third rotating shaft, wherein one end of the fixed support is fixedly arranged on the outer circular surface of a third mounting shell at the lower end of the mounting cylinder, and one ends of the first rotating shaft, the second rotating shaft and the third rotating shaft are fixedly arranged on the fixed support; the fourth gear is rotatably arranged on the first rotating shaft and is meshed with the teeth on the inner circular surface of the second mounting shell, and the teeth on the fourth gear are in up-and-down sliding fit with the teeth on the inner circular surface of the second mounting shell; the third gear is rotatably arranged on the second rotating shaft and is meshed with the fourth gear; the second gear is rotatably arranged on the third rotating shaft and is meshed with the third gear; one end of the telescopic push rod is fixedly arranged on the outer cambered surface of the corresponding cutting sector plate.

The telescopic push rod comprises a telescopic inner rod, a sliding chute, a sliding block and a telescopic outer sleeve, wherein one end of the telescopic outer sleeve is fixedly arranged on the outer cambered surface of the corresponding cutting sector plate; a sliding groove is formed in the telescopic outer sleeve, teeth are arranged on one side of the telescopic inner rod, a sliding block is arranged at one end of the telescopic inner rod, one end of the telescopic inner rod is arranged in the telescopic outer sleeve through the matching of the sliding block and the sliding groove, and the teeth on the telescopic inner rod are meshed with the second gear; after the limiting surface of the limiting clamping block is limited on the limiting shell, namely the cutting sector plate is reset, a gap is formed between the sliding block and the end surface of the sliding groove.

As a further improvement of the technology, the lower end of the return spring is mounted on the mounting platform through a thrust bearing.

Compared with the traditional pile cutting technology, the pile cutting machine has the following beneficial effects:

1. according to the pile cutting equipment designed by the invention, the soil around the pile body is dug out through the spiral drill. According to the pile cutting equipment designed by the invention, the pile body is cut by directly controlling the equipment through the excavator, and compared with the traditional manual cutting, the efficiency is higher. After the pile body is cut, can directly move the pile body that cuts out the pit external side through this equipment of excavator drive, compare in through non-professional excavator, dig out efficiency higher, utilize the excavator to dig remaining soil after all pile bodies are cut and are taken out, because of the pile body after being cut has been cleared up, so dig the soil phase rate and be high for traditional digging efficiency.

2. The cutting sector plate can slide along the radial direction of the third mounting shell under the action of the tightening plate spring, and the tightening plate spring provides a feeding force for the cutting sector plate in the process of cutting the pile body; the stability of the cutting force of the cutting sector plate to the pile body in the cutting process is ensured.

3. According to the second inclined surface, after the end surface of one side of the limiting shell, far away from the cutting sector plate, is in contact with the limiting surface on the corresponding limiting fixture block, if the cut pile body cannot fall off through gravity, the cutting sector plate still clamps the cut pile body, at the moment, only the driving cylinder needs to be rotated continuously, the limiting rod on the driving cylinder continuously drives the limiting fixture block mounted on the driving cylinder to move, the second inclined surface on the limiting fixture block extrudes the limiting shell, the limiting shell continuously drives the cutting sector plate to move until the cutting sector plate completely enters the third mounting shell at the lower end of the mounting cylinder, after the pile body falls, the limiting fixture block limits the cutting sector plate through the limiting surface under the action of a tightening plate spring.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a schematic view of a fixed connector configuration.

Fig. 4 is a schematic view of the reset leaf spring installation.

Fig. 5 is a schematic view of the installation of the cutting sector plate.

FIG. 6 is a schematic view of the regulatory structure distribution.

Fig. 7 is a schematic view of a cutting sector plate distribution.

Fig. 8 is a schematic diagram of the distribution of the shifting blocks and the limiting blocks.

Fig. 9 is a schematic view of the driving cylinder structure.

Fig. 10 is a schematic view of the structure of the mounting cylinder.

Fig. 11 is a schematic view of a mounting ring structure.

Fig. 12 is a schematic view of the fixture block and the stop.

Fig. 13 is a schematic view of the adjustment mechanism and the cutting sector plate in cooperation.

Fig. 14 is a schematic view of a telescopic push rod installation.

Fig. 15 is a schematic view of a structure of a cutting sector plate.

Fig. 16 is a schematic view of the structure of the spacing shell and the spacing rod.

Fig. 17 is a schematic view of a telescopic push rod structure.

Fig. 18 is a schematic view of an auger construction.

Number designation in the figures: 1. a fixed connecting cylinder; 2. a hydraulic motor; 3. a motor support; 4. a first gear; 5. a ring gear; 6. a drive cylinder; 7. mounting the cylinder; 8. a mounting ring; 9. a return spring; 10. a thrust bearing; 11. a limiting ring; 12. a card slot; 13. mounting a ring groove; 14. slotting a platform; 15. mounting a platform; 16. a reset plate spring; 17. cutting the sector plate; 18. an adjustment mechanism; 19. shifting blocks; 20. a limiting block; 21. installing a ring block; 22. a first mounting case; 23. a second mounting case; 24. mounting a disc; 25. a guide chute; 26. a third mounting case; 27. a guide groove; 28. avoiding the mouth; 29. a guide slider; 30. a clamping block; 31. tightening the leaf spring; 32. a second gear; 33. a third gear; 34. a fourth gear; 35. a telescopic push rod; 36. a limiting shell; 37. a limiting rod; 38. fixing and supporting; 39. a first rotating shaft; 40. a second rotating shaft; 41. a third rotating shaft; 42. a guide block; 43. a limiting groove; 44. a limiting clamping block; 45. a first inclined plane; 46. a limiting surface; 47. a second inclined plane; 48. a telescopic inner rod; 49. a chute; 50. a slider; 51. a telescopic outer sleeve; 52. a connecting member; 53. an auger.

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 and 2, the hydraulic excavator comprises a fixed connecting cylinder 1, a hydraulic motor 2, a driving cylinder 6, a mounting cylinder 7, a reset plate spring 16, a reset spring 9, a cutting sector plate 17, an adjusting mechanism 18, an upper tightening plate spring 31, a limiting rod 37 and a limiting shell 36, wherein as shown in fig. 1, a connecting piece 52 is mounted at the upper end of the fixed connecting cylinder 1, and the fixed connecting cylinder 1 is mounted on an executing component of the excavator through the connecting piece 52; as shown in fig. 2, the upper end of the driving cylinder 6 is rotatably mounted on the outer side of the fixed connecting cylinder 1, and as shown in fig. 9, the lower end of the driving cylinder 6 is provided with a second mounting shell 23; the hydraulic motor 2 is arranged on the fixed connecting cylinder 1, and the hydraulic motor 2 controls the driving cylinder 6 to rotate through the transmission of the gear and the gear ring 5; as shown in fig. 10, the lower end of the mounting cylinder 7 is provided with a third mounting shell 26, the upper end of the mounting cylinder 7 is rotatably mounted inside the fixed connecting cylinder 1, and as shown in fig. 2, the third mounting shell 26 at the lower end of the mounting cylinder 7 is positioned inside the second mounting shell 23 at the lower end of the driving cylinder 6; a return spring 9 is arranged between the upper end of the mounting cylinder 7 and the fixed connecting cylinder 1; as shown in fig. 4, return plate springs 16 are mounted between the mounting cylinder 7 and the driving cylinder 6 and are distributed uniformly in the circumferential direction. The hydraulic motor 2 is connected with a hydraulic system of the excavator through a hydraulic pipe.

As shown in fig. 7, a plurality of cutting sector plates 17 are circumferentially and uniformly mounted on a third mounting shell 26 at the lower end of the mounting cylinder 7, and the cutting sector plates 17 are in sliding fit with the third mounting shell 26 along the radial direction of the third mounting shell 26; as shown in fig. 7 and 13, two tightening leaf springs 31 are symmetrically mounted between each of the cutting sector plates 17 and the inner end surface of the third mounting shell 26; the cutting sector plate 17 designed by the invention can slide along the radial direction of the third mounting shell 26 under the action of the tightening plate spring 31, and the feeding force is provided for the cutting sector plate 17 by tightening the plate spring 31 in the process of cutting the pile body; as shown in fig. 13, each cutting sector plate 17 is provided with a limiting shell 36, as shown in fig. 6, a plurality of limiting rods 37 are circumferentially and uniformly installed on the inner circumferential surface of the second installation shell 23 at the lower end of the driving cylinder 6, as shown in fig. 16, each limiting rod 37 is provided with a limiting fixture block 44, and the limiting fixture blocks 44 are matched with the limiting shells 36 in a one-to-one correspondence manner; when the cutting machine is not used for cutting, the limiting block 20 arranged on the limiting rod 37 limits the cutting sector plate 17, so that the cutting sector plate 17 is completely positioned in the second mounting shell 23, and the nesting of the mounting cylinder 7 is not influenced; meanwhile, as the cutting fan-shaped plate 17 is limited, the corresponding tightening plate spring 31 is compressed to exert an upward force; as shown in fig. 5 and 6, an adjusting mechanism 18 for controlling the reset of the corresponding cutting sector plate 17 is respectively installed between each cutting sector plate 17 and the second installation shell 23.

As shown in fig. 10, the mounting cylinder 7 has a mounting plate 24 at an upper end thereof, as shown in fig. 12, a plurality of locking blocks 30 are uniformly circumferentially mounted at a lower end of the mounting plate 24, as shown in fig. 3, the inner side of the fixed connecting cylinder 1 has a grooved platform 14, a plurality of locking grooves 12 are uniformly circumferentially opened on an upper end surface of the grooved platform 14, as shown in fig. 2, the locking grooves 12 and the locking blocks 30 are correspondingly matched with each other one to one. The design of the fixture block 30 and the clamping groove 12 has the effects that after the pile body is cut, all the cutting sector plates 17 are positioned at the lower side of the cut pile body, at the moment, the fixed connecting cylinder 1 is lifted upwards through the excavator, the fixed connecting cylinder 1 is in a static state in the vertical direction due to the fact that the fixed connecting cylinder 1 is rotationally matched with the driving cylinder 6, the driving cylinder 6 is in sliding fit with the fixed connecting cylinder 1 in the vertical direction, when the fixed connecting cylinder 1 is lifted up by the excavator, the mounting cylinder 7 moves downwards relative to the fixed connecting cylinder 1 under the downward pressing of the cutting sector plates 17 arranged on the mounting cylinder under the action of the gravity of the cut pile body, the fixture block 30 arranged at the lower side of the mounting disc 24 at the upper end of the mounting cylinder 7 is tightly clamped on the end face of the slotting platform 14 on the fixed connecting cylinder 1 in the downward moving process, if the fixture block 30 is just matched with the clamping groove 12, the fixture block 30 is clamped in the clamping groove 12, no matter the fixture block 30 is clamped in the clamping groove 12 or the fixture block 30 is tightly attached to the end surface of the slotting platform 14, the fixed connecting cylinder 1 drives the mounting cylinder 7 to move upwards at the moment, and then the cut pile body is driven to move upwards by the cutting fan-shaped plate 17; move to the outer side of the pit body. In order to ensure that the cutting contact surface of the cutting sector plate 17 and the pile body is an arc surface rather than a sharp point, the inner arc surface of the cutting sector plate 17 has a certain arc length, so that after the pile body is cut, a part of connection exists between the cut pile body and the left pile body; in order to solve the problem, before the cut pile body is lifted, the device is firstly shaken to shake off the connecting part, and then the cut pile body is lifted.

As shown in fig. 12, three sets of limiting blocks 20 are uniformly circumferentially installed on the lower end surface of the third installation shell 26 at the lower end of the installation cylinder 7, as shown in fig. 8, three shifting blocks 19 are uniformly circumferentially installed on the bottom surface in the second installation shell 23 at the lower end of the driving cylinder 6, the three shifting blocks 19 are matched with the three sets of limiting blocks 20, and the three shifting blocks 19 are respectively located between two limiting blocks 20 in a corresponding set.

When the cutting machine is not used for cutting, the three shifting blocks 19 are respectively contacted with one limiting block 20 of the two limiting blocks 20 in the corresponding group; when the driving cylinder 6 is controlled to rotate in the forward direction, the three shifting blocks 19 start to rotate along with the driving cylinder 6, at this time, the second mounting shell 23 at the lower end of the driving cylinder 6 drives all the fourth gears 34 to rotate, the fourth gears 34 rotate to drive the corresponding third gears 33 to rotate, the third gears 33 rotate to drive the corresponding second gears 32 to rotate, the second gears 32 rotate to drive the telescopic inner rods 48 in the corresponding telescopic push rods 35 to slide relative to the corresponding telescopic outer sleeves 51, meanwhile, the second mounting shell 23 rotates to drive the limiting rods 37 mounted on the second mounting shell 23 to move, the limiting rods 37 move to drive the limiting fixture blocks 44 on the limiting fixture blocks to move, and in the moving process, after the limiting fixture blocks 44 are separated from the corresponding limiting shells 36, the cutting sector plates 17 tightly press the inner cambered surfaces of the corresponding leaf springs 31 on the pile body; in the process, the slide block 50 arranged on the telescopic inner rod 48 in the telescopic push rod 35 is not contacted with the two end surfaces of the slide groove 49 formed on the telescopic outer sleeve 51; after the limiting fixture block 44 is disengaged from the corresponding limiting shell 36, the limiting rod 37 continues to rotate relative to the corresponding limiting shell 36 until the three shifting blocks 19 are just in contact with the other limiting block 20 in the corresponding group respectively, and at this time, the mounting cylinder 7 and the driving cylinder 6 are synchronous in the rotating direction; the feeding of the cutting fan-shaped plate 17 in the rotating process is provided by the corresponding pressing plate spring, so that the stability of the cutting force of the cutting fan-shaped plate 17 on the pile body in the cutting process is ensured; when the cutting sector plate 17 is fed, the slide block 50 mounted on the telescopic inner rod 48 is gradually close to the end face of the slide groove 49 on the corresponding telescopic outer sleeve 51 far from the cutting sector plate 17.

As shown in fig. 2, the hydraulic motor 2 is mounted on one side of the fixed connection cylinder 1 through the motor support 3, the first gear 4 is fixedly mounted on the output shaft of the hydraulic motor 2, the ring gear 5 is fixedly mounted on the outer circumferential surface of the upper end of the driving cylinder 6, and the ring gear 5 is engaged with the first gear 4.

The return spring 9 is a compression spring and has pre-pressure; as shown in fig. 3, a limiting ring 11 is mounted on the inner circular surface of the upper end of the fixed connecting cylinder 1, and a mounting platform 15 is provided on the inner circular surface of the lower end of the fixed connecting cylinder 1; as shown in fig. 2, the mounting plate 24 mounted on the mounting cylinder 7 is matched with the limiting ring 11 mounted on the fixed connecting cylinder 1, and the mounting plate 24 is located at the lower side of the limiting ring 11; the upper end of the return spring 9 is fixedly arranged on the lower end face of the mounting disc 24, and the lower end of the return spring 9 is arranged on the mounting platform 15. The return spring 9 has the function of returning the mounting cylinder 7 and the fixed connecting cylinder 1.

As shown in fig. 2, the outer circumferential surface of the lower end of the fixed connecting cylinder 1 is provided with a mounting ring groove 13, as shown in fig. 9, the inner circumferential surface of the upper end of the driving cylinder 6 is provided with a mounting ring block 21, as shown in fig. 2, the driving cylinder 6 is mounted outside the fixed connecting cylinder 1 by the rotation fit of the mounting ring block 21 and the mounting ring groove 13.

As shown in fig. 9, the driving cylinder 6 is provided with a first mounting shell 22, the outer circumferential surface of the mounting cylinder 7 is uniformly provided with two guide sliding grooves 25 in the circumferential direction, as shown in fig. 11, the inner circumferential surface of the mounting ring 8 is uniformly provided with two guide sliding blocks 29 in the circumferential direction, as shown in fig. 4, the mounting ring 8 is mounted on the mounting cylinder 7 through the sliding fit of the two guide sliding blocks 29 and the two guide sliding grooves 25, one end of the return plate spring 16 mounted between the driving cylinder 6 and the mounting cylinder 7 is fixedly mounted on the outer circumferential surface of the mounting ring 8, and the other end is fixedly mounted on the inner circumferential surface of the first mounting shell 22. The mounting ring 8 is designed to prevent the mounting cylinder 7 from interfering with the mounted reset plate spring 16 in the downward moving process; meanwhile, the mounting cylinder 7 does not influence the upward force of the reset plate spring 16 when rotating relative to the driving cylinder 6; the reset plate spring 16 plays a role of resetting the mounting cylinder 7 and the driving cylinder 6.

As shown in fig. 10, a plurality of guide grooves 27 are circumferentially and uniformly formed along the radial direction on both upper and lower end surfaces in a third mounting case 26 mounted on the lower end of the mounting tube 7; as shown in fig. 13 and 15, two guide blocks 42 are symmetrically installed at the upper and lower ends of all the cutting sector plates 17 installed in the third installation shell 26, respectively, and as shown in fig. 7, all the cutting sector plates 17 installed in the third installation shell 26 are installed in the third installation shell 26 by the sliding fit of the two guide blocks 42 thereon and the guide grooves 27 opened on the third installation shell 26; the cut-off segment plates 17 are guided and limited by the cooperation of the guide blocks 42 and the guide grooves 27.

The ends of all the cutting sector plates 17 mounted in the third mounting shell 26, which are close to the center of the third mounting shell 26, are provided with symmetrically distributed inclined planes, and the inclined planes are designed to improve the cutting efficiency.

As shown in fig. 16, the limiting shell 36 has a limiting groove 43 therein, and the limiting shell 36 is fixedly mounted on the outer arc surface of the corresponding cutting sector plate 17; the limiting fixture block 44 is provided with a first inclined surface 45 and a second inclined surface 47, and a limiting surface 46 is arranged between the first inclined surface 45 and the second inclined surface 47; the limiting fixture block 44 is matched with the corresponding limiting groove 43 on the limiting shell 36; the height of the limiting groove 43 in the vertical direction is greater than the thickness of the limiting fixture block 44; the reason that the height of design spacing groove 43 direction from top to bottom is greater than the thickness of spacing fixture block 44 is to guarantee that after the pile body breaks away from, installation section of thick bamboo 7 moves the in-process on the relative driving cylinder 6, spacing shell 36 along with the in-process that moves up of installation section of thick bamboo 7, spacing fixture block 44 of connecting on driving cylinder 6 is under the circumstances that does not move up, can be spacing cooperation all the time with spacing shell 36, and spacing fixture block 44 slides from top to bottom for spacing groove 43 in this process.

As shown in fig. 10, the outer circumferential surface of the third mounting shell 26 at the lower end of the mounting cylinder 7 is provided with circumferentially and uniformly distributed relief ports 28; the second mounting shell 23 at the lower end of the drive cylinder 6 has teeth on its inner circumferential surface.

As shown in fig. 13 and 14, the adjusting mechanism 18 includes a second gear 32, a third gear 33, a fourth gear 34, a telescopic push rod 35, a fixed support 38, a first rotating shaft 39, a second rotating shaft 40, and a third rotating shaft 41, wherein as shown in fig. 7, one end of the fixed support 38 is fixedly mounted on the outer circumferential surface of the third mounting shell 26 at the lower end of the mounting cylinder 7, and as shown in fig. 14, one ends of the first rotating shaft 39, the second rotating shaft 40, and the third rotating shaft 41 are fixedly mounted on the fixed support 38; the fourth gear 34 is rotatably mounted on the first rotating shaft 39, and the fourth gear 34 is engaged with teeth on the inner circumferential surface of the second mounting case 23; the teeth on the fourth gear 34 are in up-and-down sliding fit with the teeth on the inner circular surface of the second mounting shell 23; the third gear 33 is rotatably mounted on the second rotating shaft 40, and the third gear 33 is meshed with the fourth gear 34; the second gear 32 is rotatably mounted on the third rotating shaft 41, and the second gear 32 is meshed with the third gear 33; one end of the telescopic push rod 35 is fixedly arranged on the outer cambered surface of the corresponding cutting sector plate 17.

The reason for this design is to ensure that after the pile body is disengaged, the fourth gear 34 is always engaged with the teeth on the inner circumferential surface of the second mounting shell 23, which are not moved up, in the process of moving up the mounting cylinder 7 relative to the driving cylinder 6.

As shown in fig. 17, the telescopic push rod 35 includes a telescopic inner rod 48, a sliding slot 49, a sliding block 50, and a telescopic outer sleeve 51, wherein one end of the telescopic outer sleeve 51 is fixedly mounted on the outer arc surface of the corresponding cutting sector plate 17; a sliding groove 49 is formed in the telescopic outer sleeve 51, teeth are arranged on one side of the telescopic inner rod 48, a sliding block 50 is installed at one end of the telescopic inner rod 48, one end of the telescopic inner rod 48 is installed in the telescopic outer sleeve 51 through the matching of the sliding block 50 and the sliding groove 49, and the teeth on the telescopic inner rod 48 are meshed with the second gear 32; after the limiting surface 46 of the limiting fixture block 44 limits the limiting shell 36, that is, after the cutting sector plate 17 is reset, a gap is formed between the sliding block 50 and the end surface of the sliding groove 49.

The lower end of the return spring 9 is mounted on a mounting platform 15 via a thrust bearing 10.

The present invention is defined as follows: after the end surface of the limiting shell 36 on the side far away from the cutting sector plate 17 is contacted with the limiting surface 46 on the corresponding limiting fixture block 44, the size of the circular hole in the middle of the cutting sector plate 17 is just right enough to allow a pile body to pass through, and a part of the cutting sector plate 17 is remained and does not enter the third mounting shell 26; when the second inclined surface 47 of the limiting fixture block 44 presses the limiting shell 36, the cutting fan-shaped plate 17 can completely enter the second mounting shell 23.

The second inclined surface 47 is designed to enable the cutting sector plate 17 to completely enter the second mounting shell 23 when the second inclined surface 47 acts, and the pile body is ensured to fall off.

After the limiting shell 36 is contacted with the limiting surface 46, the size of the round hole in the middle of the cutting sector plate 17 is just right enough to enable the pile body to pass through, and the cutting sector plate 17 still leaves a part of the round hole which does not enter the third mounting shell 26 to ensure that the pile body does not fall off before the limiting shell 36 is contacted with the limiting surface 46, because the pile body falls off, the mounting cylinder 7 rotates along with the driving cylinder 6, the relative motion of the limiting shell 36 and the limiting fixture block 44 is influenced, and the purpose of limiting cannot be achieved.

The specific working process is as follows: before the device is used, the limiting shell 36 of the cutting sector plate 17 is limited by the limiting surface 46 of the limiting fixture block 44, the sliding block 50 and the sliding groove have a gap, and the gap in the state also ensures that the force of the tightening plate spring 31 on the cutting sector plate 17 is completely prevented by the limiting surface 46, so that the reliable limiting capacity of the limiting surface 46 is ensured.

When the equipment designed by the invention is used, before the equipment is used, firstly, a section of the surrounding graph of the pile body is dug by using the spiral drill 53 shown in fig. 18, then the equipment is installed on an execution part of the excavator, the pile body exposed after the excavation is finished is sleeved in the installation cylinder 7, then the hydraulic motor 2 is controlled to work by a hydraulic system of the excavator, the hydraulic motor 2 is started at a higher speed at the beginning, the hydraulic motor 2 drives the first gear 4 to rotate, the first gear 4 drives the gear ring 5 to rotate, the gear ring 5 drives the driving cylinder 6 to rotate forward and quickly, because the driving cylinder 6 is connected with the installation cylinder 7 through the reset plate spring 16, the installation cylinder 7 cannot rotate along with the driving cylinder 6 in time due to the inertia effect of the installation cylinder, and the limit fixture block 44 can quickly separate from the limit shell 36 to lose the limit of the cutting sector plate 17; meanwhile, when the driving cylinder 6 starts to rotate in the forward direction, the three shifting blocks 19 start to rotate along with the driving cylinder 6, the second mounting shell 23 at the lower end of the driving cylinder 6 drives all the fourth gears 34 to rotate, the fourth gears 34 drive the corresponding third gears 33 to rotate, the third gears 33 drive the corresponding second gears 32 to rotate, the second gears 32 drive the corresponding telescopic inner rods 48 in the telescopic push rods 35 to rotate and slide inwards relative to the corresponding telescopic outer sleeves 51, in the process, the sliding blocks 50 mounted on the telescopic inner rods 48 in the telescopic push rods 35 are not in contact with the two end faces of the sliding grooves 49 formed in the telescopic outer sleeves 51, the telescopic sleeves are not acted during sliding, namely, the transmission of the gear rack does not influence the separation of the limiting clamping blocks 44 and the limiting shells 36. After the limiting fixture block 44 is separated from the corresponding limiting shell 36, the inner cambered surface of the cutting fan-shaped plate 17 is tightly pressed on the pile body under the action of the corresponding tightening plate spring 31; under the friction action of the cutting sector plate 17 and the pile body, the driving cylinder 6 continues to rotate relative to the mounting cylinder 7, and after the three shifting blocks 19 are just in contact with the other limiting block 20 in the corresponding group respectively, the mounting cylinder 7 and the driving cylinder 6 are synchronous in the rotating direction; the pile body is cut through the cutting fan-shaped plate 17, in the cutting process, the feeding force is provided for the cutting fan-shaped plate 17 through tightening the plate spring 31, the cutting fan-shaped plate 17 gradually draws close to the center along with the cutting of the pile body, the cutting is in place after the cutting fan-shaped plate 17 is completely drawn close, and at the moment, the sliding block 50 is in contact with one end of the sliding groove 49; in addition, after the cutting is finished, the cutting sector plate 17 is positioned at the lower side of the cut pile body, at the moment, the equipment is firstly shaken, the connecting part is shaken off by shaking, and then the cut pile body is lifted.

After the cut pile body is lifted out of the outer side of the pit body, the hydraulic motor 2 is closed, an executing part of the excavator is controlled to slightly lift the equipment upwards, the pile body is pressed on the cutting sector plate 17, the cutting sector plate 17 drives the installation cylinder 7 to move downwards relative to the fixed connecting cylinder 1, then the hydraulic motor 2 is controlled to reversely drive the driving cylinder 6 to rotate, and if the fixture block 30 on the lower side of the installation disc 24 at the upper end of the installation cylinder 7 is not clamped in the corresponding clamping groove 12, the fixture block 30 can be quickly clamped in the clamping groove 12 when the driving cylinder 6 rotates; the mounting cylinder 7 is made stationary in the direction of rotation with respect to the fixed connecting cylinder 1; at the moment, the driving cylinder 6 rotates to drive all the fourth gears 34 to rotate through the second mounting shell 23, the fourth gears 34 drive the corresponding telescopic inner rods 48 in the telescopic push rods 35 to move through the transmission of the corresponding third gears 33 and the corresponding second gears 32, and the telescopic inner rods 48 move to drive the sliding blocks 50 on the telescopic inner rods to pull the telescopic outer sleeves 51 to move; the telescopic outer sleeve 51 moves to drive the corresponding cutting sector plate 17 to move, and the cutting sector plate 17 moves to drive the corresponding limiting shell 36 to move; in the process, the limiting rod 37 gradually approaches the cutting sector plate 17 along with the rotation of the driving cylinder 6, when the end surface of the limiting groove 43 on the limiting shell 36, which is far away from one side of the cutting sector plate 17, contacts with the first inclined surface 45 of the limiting fixture 44 mounted on the limiting rod 37 driven to rotate by the driving cylinder 6 in the moving process, the limiting shell 36 is pushed to move by the first inclined surface 45 on the rotating limiting fixture 44, the limiting shell 36 moves to drive the cutting sector plate 17 to move, and at the moment, the speed at which the limiting block 20 drives the cutting sector plate 17 to move is higher than the speed at which the telescopic inner rod 48 in the telescopic push rod 35 drives the cutting sector plate 17 to move, so that a gap is formed between the sliding block 50 mounted on the telescopic inner rod 48 in the telescopic push rod 35 and the end surface of the telescopic outer sleeve 51, which is far away from one side of the cutting sector plate 17, and the gap is larger and larger; after the end face of one side of the limiting shell 36 far away from the cutting sector plate 17 contacts with the limiting face 46 on the corresponding limiting fixture block 44, the size of the circular hole in the middle of the cutting sector plate 17 is just right enough to allow the pile body to pass through, so that a part of the cutting sector plate 17 still remains and does not enter the third mounting shell 26, the cut pile body can not fall off through gravity, the cutting sector plate 17 still clamps the cut pile body, at the moment, the driving cylinder 6 continues to rotate, the limiting rod 37 on the driving cylinder 6 continues to drive the limiting fixture block 44 mounted on the driving cylinder to move, the second inclined face 47 on the limiting fixture block 44 extrudes the limiting shell 36, the limiting shell 36 continues to drive the cutting sector plate 17 to move, a gap is formed between the sliding block 50 and the sliding groove 49 in the moving process, the cutting sector plate 17 completely enters the second mounting shell 23, the pile body can be ensured to fall off at the moment, and the pile body falls off after the pile body falls off, through the corresponding tight leaf spring 31, second inclined plane 47 on the spacing fixture block 44 of spacing shell 36 extrusion for spacing face 46 on the spacing fixture block 44 keeps away from the end face contact of cutting sector plate 17 one side with spacing shell 36 once more, it is spacing by spacing fixture block 44 to cut sector plate 17, drive tube 6 can be rotatory a little angle relatively to installation tube 7 under the effect of tight leaf spring 31 at this in-process, because telescopic link and telescope tube have been designed, the transmission of gear and rack can not influence and spacing again, in order to guarantee spacing face 46's reapplication.