CN218953251U

CN218953251U - Rotary drilling roller reamer bit

Info

Publication number: CN218953251U
Application number: CN202320114571.2U
Authority: CN
Inventors: 刘宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-05-02
Anticipated expiration: 2033-01-17

Abstract

The utility model provides a dig roller reamer bit soon, relate to a roller reamer bit, including last casing, lower casing, hydraulic pressure center gyration joint and roll crushing subassembly, the shell body of hydraulic pressure center gyration joint is fixed in the top center department of last casing top panel, be equipped with the tight device in the last casing, the upper end of the inside transmission shaft of hydraulic pressure center gyration joint is fixed with the connecting seat, the lower extreme fixedly connected with lower casing of hydraulic pressure center gyration joint transmission shaft, the baffle of rolling crushing subassembly is vertical to be fixed in the middle part of lower casing, all be equipped with the deflector in two cavitys of lower casing, all be fixed with the pneumatic cylinder in the deflector, the piston end of two pneumatic cylinders respectively with the both sides face fixed connection of baffle, be equipped with two arc slot holes along the circumferencial direction of lower casing excircle surface correspondingly, the one end of deflector sets up in the arc slot hole, the other end sets up in the cavity, all be connected with the cone on the mounting panel on the outer terminal surface of deflector; the utility model greatly saves the construction time and improves the working efficiency.

Description

Rotary drilling roller reamer bit

Technical Field

The utility model relates to a rotary reamer bit, in particular to a rotary reamer bit.

Background

As known, at present, large-diameter rock-entering pile foundations in China are more and more, and the traditional construction method is to drill in layers in the diameter direction; taking a rock pile with the diameter of 2.5 meters as an example, generally drilling in four layers, firstly using a drill bit with the diameter of one meter and five to carry out drilling construction, and after the construction is finished, sequentially using the drill bits with the diameters of two meters, two meters and five to carry out layered drilling, so that the operation wastes a large amount of time and a large amount of drilling tools, and has lower working efficiency; therefore, it is a basic requirement of those skilled in the art to provide a rotary drilling roller reamer bit which can save time and drilling tool and improve working efficiency.

Disclosure of Invention

In order to overcome the defects in the background technology, the utility model discloses a rotary drilling roller reamer bit.

In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:

the rotary drilling bit comprises an upper shell, a lower shell, a hydraulic center rotary joint and a rolling crushing assembly, wherein the upper shell and the lower shell are cylindrical, an outer shell of the hydraulic center rotary joint is fixed at the center of the upper surface plate of the upper shell, a jacking device fixed on a rock wall is arranged in the upper shell, a connecting seat is fixed at the upper end of a transmission shaft inside the hydraulic center rotary joint, the lower end of the transmission shaft of the hydraulic center rotary joint is fixedly connected with the lower shell, and the rolling crushing assembly is arranged in the lower shell;

the rolling crushing assembly comprises a partition plate, a guide plate, hydraulic cylinders and a roller cone, wherein the partition plate is vertically fixed in the middle of a lower shell, the lower shell is divided into two cavities, the guide plates are respectively arranged in the two cavities, the hydraulic cylinders are respectively fixed in the guide plates, the piston ends of the two hydraulic cylinders are respectively fixedly connected with two side faces of the partition plate, two arc long holes are correspondingly arranged in the circumferential direction of the outer circular face of the lower shell, one end of the guide plate is arranged in the arc long holes, the other end of the guide plate is arranged in the cavity, a mounting plate is respectively fixed on the outer end face of the guide plate, the mounting plate is Z-shaped, and comprises a vertical bending plate integrally arranged and an upper plane plate horizontally extending at the upper end of the vertical bending plate, and the roller cone is connected to the upper face of the vertical bending plate and the lower face of the upper plane plate.

The rotary drilling bit is characterized in that the connecting seat is of a square pipe body structure, a plurality of connecting holes are correspondingly formed in the opposite surfaces of the connecting seat, and the connecting seat is fixedly connected with an external drilling machine through bolts in the connecting holes.

The rotary drilling reamer bit is characterized in that the arc long hole is arranged into a step hole with large outside and small inside, the height of the outer hole positioned at the outer side of the arc long hole is larger than that of the inner hole, the upper plane plate of the roller cone arranged on the vertical bending plate is slightly higher than the upper surface of the guide plate, the lower plane of the roller cone arranged below the upper plane plate is slightly lower than the lower surface of the guide plate, the roller cone is positioned in the outer hole positioned at the outer side of the arc long hole, and the outer side of the outer circular surface of the roller cone protrudes out of the outer end surface of the mounting plate.

The jacking device comprises a push plate, a supporting seat A, an oil cylinder and a supporting seat B, wherein the two supporting seats A are respectively fixed on two sides of the middle part below the upper panel of the upper shell, the push plate is arranged in arc holes on two sides of the upper shell in a sliding way, the push plate is an arc plate and is matched with the arc hole, the middle part of the inner surface of the push plate is fixedly provided with supporting seats B, the two oil cylinders are arranged, the bases of the oil cylinders are hinged in the supporting seats A through hinge shafts, and the piston rods of the oil cylinders are respectively hinged with the two supporting seats B.

The rotary drilling bit comprises an upper shell, a lower shell, a rotary table bearing, an inner ring, a lower cover plate, a rotary table bearing, a cylinder body, an inner hole and a lower hole, wherein the rotary table bearing is connected between the upper shell and the lower shell, the lower center of the upper shell and the upper center of the lower cover plate of the upper shell, the corresponding stepped holes are formed in the upper center of the upper cover plate of the lower shell, the inner ring of the rotary table bearing is arranged in the stepped holes of the upper cover plate and fixedly connected with the upper cover plate, the outer ring of the rotary table bearing is arranged in the stepped holes of the lower cover plate and fixedly connected with the lower cover plate, the cylinder body is fixedly arranged in the middle between the upper panel of the upper shell and the lower cover plate, and the lower end of a transmission shaft of the hydraulic center rotary joint sequentially penetrates through the central hole of the upper panel, the inner hole of the cylinder body and the central hole of the stepped holes of the lower cover plate.

The rotary drilling bit is characterized in that two long holes are formed in the transmission shaft along the length direction of the transmission shaft, two oil inlet pipelines are arranged in one long hole, two oil outlet pipelines are arranged in the other long hole, the upper ends of the two oil inlet pipelines are respectively connected with an oil inlet on a hydraulic center rotary joint shell, the upper ends of the two oil outlet pipelines are respectively connected with an oil outlet on the hydraulic center rotary joint shell, the lower ends of the two oil inlet pipelines are respectively connected with an oil inlet of a hydraulic cylinder, and the lower ends of the two oil outlet pipelines are respectively connected with an oil return port of the hydraulic cylinder.

The rotary drilling bit is characterized in that a bearing is arranged between the cylinder body and a transmission shaft of the hydraulic center rotary joint.

Due to the adoption of the technical scheme, the utility model has the following beneficial effects:

according to the rotary drilling bit for the rotary drilling bit, the upper shell is fixed on the rock wall through the jacking device, the rotary shaft is driven by the external drilling machine to drive the whole lower shell to horizontally rotate by 360 degrees, so that the rock wall is cut by the rolling and crushing assembly in the lower shell, and the rolling and crushing assembly in the lower shell is arranged in a telescopic manner, so that the rotary drilling bit for the rotary drilling bit is convenient to use; the utility model has simple structure and convenient operation, and can save two working procedures for pile foundation construction of 2.5 meters, thereby greatly saving the construction time and improving the working efficiency.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the internal structure of the present utility model.

Fig. 3 is an extended schematic view of the crushing roller assembly of the present utility model.

In the figure: 1. a connecting seat; 2. a connection hole; 3. a hydraulic center swivel joint; 4. a push plate; 5. an upper housing; 6. a lower housing; 7. a roller cone; 8. a mounting plate; 9. a guide plate; 10. an oil inlet pipe; 11. an upper panel; 12. a supporting seat A; 13. an oil cylinder; 14. a supporting seat B; 15. a cylinder; 16. a lower base plate; 17. a turntable bearing; 18. an upper cover plate; 19. a partition plate; 20. a hydraulic cylinder; 21. a long hole; 22. and a transmission shaft.

Detailed Description

The utility model will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the utility model.

The rotary-digging cone reaming bit comprises an upper shell 5, a lower shell 6, a hydraulic center rotary joint 3 and a rolling crushing assembly, wherein the upper shell 5 and the lower shell 6 are cylindrical, an outer shell of the hydraulic center rotary joint 3 is fixed at the center of the upper surface plate 11 of the upper shell 5, a jacking device fixed on a rock wall is arranged in the upper shell 5, a connecting seat 1 is fixed at the upper end of a transmission shaft 22 in the hydraulic center rotary joint 3, the lower end of the transmission shaft 22 of the hydraulic center rotary joint 3 is fixedly connected with the lower shell 6, and the rolling crushing assembly is arranged in the lower shell 6;

the rolling crushing assembly comprises a baffle plate 19, a guide plate 9, hydraulic cylinders 20 and roller cones 7, wherein the baffle plate 19 is vertically fixed in the middle of a lower shell 6, the lower shell 6 is divided into two cavities, the guide plate 9 is arranged in each of the two cavities, the hydraulic cylinders 20 are fixedly connected in the guide plate 9, piston ends of the two hydraulic cylinders 20 are respectively fixedly connected with two side surfaces of the baffle plate 19, two arc long holes are correspondingly formed in the circumferential direction of the outer circular surface of the lower shell 6, one end of the guide plate 9 is arranged in the arc long holes, the other end of the guide plate 9 is arranged in the cavity, mounting plates 8 are fixed on the outer end surfaces of the guide plate 9, each mounting plate 8 is Z-shaped and comprises a vertical bent plate integrally arranged and an upper plane plate horizontally extending at the upper end of the vertical bent plate, and the roller cones 7 are connected above the vertical bent plate and below the upper plane plate;

the arc slot hole is set as the step hole of big outside and small inside, and the outer hole height that is located the arc slot hole outside is greater than the height of inboard hole, and the upper plane board of setting up cone 7 on perpendicular bend board is slightly higher than above deflector 9, and the lower plane of setting up cone 7 below the upper plane board is slightly below deflector 9, and cone 7 is located the outer hole outside the arc slot hole, and the outside of cone 7 excircle face protrusion mounting panel 8 outer terminal surface's outside.

The working principle of the rolling crushing assembly is as follows: the piston ends of the hydraulic cylinders 20 in the guide plates 9 on the two sides extend out, so that the guide plates 9 are driven to pass through the arc-shaped long holes to slide downwards to the outside of the shell 6, and the cone 7 is pushed out and then is positioned on the rock wall to be cut.

The rotary drilling bit is characterized in that the connecting seat 1 is of a square pipe body structure, a plurality of connecting holes 2 are correspondingly formed in the opposite surfaces of the connecting seat 1, the connecting seat 1 is fixedly connected with an external drilling machine through bolts in the connecting holes 2, and the drilling machine drives the connecting seat 1 to drive a transmission shaft 22 of the hydraulic center rotary joint 3 to rotate.

The rotary drilling bit comprises a push plate 4, a support seat A12, an oil cylinder 13 and a support seat B14, wherein the support seat A12 is arranged at two sides of the middle part of the lower surface of an upper panel 11 of an upper shell 5, the push plate 4 is arranged in arc holes at two sides of the upper shell 5 in a sliding manner, the push plate 4 is an arc plate and is matched with the arc holes, the support seat B14 is fixed at the middle part of the inner surface of the push plate 4, the oil cylinder 13 is arranged at two, the bases of the oil cylinder 13 are hinged in the support seat A12 through hinge shafts, and piston rods of the oil cylinder 13 are hinged with the two support seats B14 respectively;

the working principle of the jacking device is as follows: after the roller reamer bit enters the excavation hole, piston rods of the two oil cylinders 13 extend out to push the two push plates 4 out of the upper shell 5 respectively until the outer annular surfaces of the two push plates 4 are tightly propped against the rock wall, so that the upper shell 5 is fixed.

The rotary drilling bit is characterized in that a rotary table bearing 17 is connected between an upper shell 5 and a lower shell 6, corresponding step holes are formed in the center of the lower surface of a lower bottom plate 16 of the upper shell 5 and the center of the upper surface of an upper cover plate 18 of the lower shell 6, an inner ring of the rotary table bearing 17 is arranged in the step hole of the upper surface of the upper cover plate 18 and fixedly connected with the upper cover plate 18, an outer ring of the rotary table bearing 17 is arranged in the step hole of the lower surface of the lower bottom plate 16 and fixedly connected with the lower bottom plate 16, a cylinder 15 is fixedly arranged in the middle between an upper surface plate 11 of the upper shell 5 and the lower bottom plate 16, and the lower end of a transmission shaft 22 of a hydraulic center rotary joint 3 sequentially penetrates through the center hole of the upper surface plate 11, an inner hole of the cylinder 15 and the center hole of the step hole of the lower surface of the lower bottom plate 16 and then is fixedly connected with the inner ring of the rotary table bearing 17 and the center hole of the step hole of the upper surface of the upper cover plate 18; a bearing is arranged between the cylinder 15 and the transmission shaft 22 of the hydraulic center rotary joint 3;

the working principle of the transmission component is as follows: the drilling machine drives the transmission shaft 22 driving the hydraulic center rotary joint 3 to rotate, thereby driving the transmission shaft 22 to rotate in the cylinder body 15, a bearing is arranged between the transmission shaft 22 and the cylinder body 15, the cylinder body 15 is fixedly arranged, the lower end of the transmission shaft 22 drives the inner ring of the turntable bearing 17 and the upper cover plate 18 to rotate, and thus the guide plate 9 arranged in the lower shell 6, the hydraulic cylinder 20 fixed in the guide plate 9 and the cone 7 on the outer end surface of the guide plate 9 rotate along with the rotation of the lower shell 6.

The rotary drilling bit is characterized in that two long holes 21 are formed in the transmission shaft 22 along the length direction of the transmission shaft, two oil inlet pipelines are arranged in one long hole 21, two oil outlet pipelines are arranged in the other long hole 21, the upper ends of the two oil inlet pipelines are respectively connected with an oil inlet on the shell of the hydraulic center rotary joint 3, the upper ends of the two oil outlet pipelines are respectively connected with an oil outlet on the shell of the hydraulic center rotary joint 3, the lower ends of the two oil inlet pipelines are respectively connected with an oil inlet of the hydraulic cylinder 20, and the lower ends of the two oil outlet pipelines are respectively connected with an oil return port of the hydraulic cylinder 20.

The trend of the oil way is as follows: the oil inlet pipe 10 on the hydraulic center rotary joint 3 is connected with an external oil pump, hydraulic oil enters an oil inlet of the hydraulic center rotary joint 3 through the oil inlet pipe 10, sequentially enters an oil inlet of the hydraulic cylinder 20 through an oil inlet pipeline in the long hole 21, an oil return pipe on the hydraulic center rotary joint 3 is connected with an oil return port on the hydraulic center rotary joint 3, and hydraulic oil returns to the oil return pipe on the hydraulic center rotary joint 3 through the oil return port on the hydraulic cylinder 20, the oil return pipeline in the long hole 21 and the oil return port on the hydraulic center rotary joint 3.

When the rotary drilling bit is used, taking pile foundation construction with the excavation diameter of 2.5 meters as an example, the external diameter of the rotary drilling bit is 1.5 meters, firstly, the drill bit with the diameter of 1.5 meters is used for drilling at the excavation part, the drill bit is pulled out after the drilling depth is 20 meters, the connecting seat 1 of the rotary drilling bit is fixedly connected with a drilling machine and is placed into an excavated hole, the rotary drilling bit is cut at intervals of two meters from top to bottom, when the first two meters are cut, two pushing plates 4 are pushed out and tightly pressed on a rock wall, so that the upper shell 5 is fixed, the drilling machine is fixed with the connecting seat 1, a transmission shaft 22 of a hydraulic center rotary joint 3 is driven to rotate 360 degrees along the horizontal circumferential direction, and the transmission shaft 22 drives a lower shell 6 and a rolling crushing assembly in the lower shell 6 to rotate; simultaneously, two hydraulic cylinders 20 of the rolling and crushing assembly are started, the piston end stretches to drive the guide plate 9 and the roller cones 7 on the outer end faces of the guide plate 9 to walk towards the rock wall direction until the cutting faces of the roller cones 7 on the two sides extend out of the lower shell 6 by 0.5 m, after rolling and crushing are finished, the two oil cylinders 13 retract the push plate 4 to the original position, the original position of the push plate 4 is flush with the outer circular face of the upper shell 5, the appearance is cylindrical, after the rolling and crushing of the first two meters are finished, two meters are put down again, the previous operation is repeated, and the like until the rolling and crushing are finished to the bottom of a pile foundation; then using a 2.5 m roller cone drill to drill, cutting a cutting groove with the diameter of 2.5 m and the width of 10 cm on the rock wall, forming a rock ring with the inner diameter of one meter five, the outer diameter of two meters three and the height of two meters until the cutting groove is cut to the position of rolling and crushing, taking out the rock ring by using a grabbing drill bit, and repeating the subsequent work until pile foundation is completed; the hydraulic center swivel joint 3 is in the prior art, a shaft seal and a rotary seal are arranged between a housing and an inner transmission shaft 22 of the hydraulic center swivel joint 3, an oil inlet pipe 10 at the upper part of the hydraulic center swivel joint 3 is connected with an external oil pump, and hydraulic oil is input into an oil inlet pipeline in the transmission shaft 22 through the oil inlet pipe 10, and the hydraulic center swivel joint is mainly used for oil supply and oil return of two hydraulic cylinders 20, and the specific structure is not described in detail.

The utility model is not described in detail in the prior art.

The embodiments selected herein for the purposes of disclosing the present utility model are presently considered to be suitable, however, it is to be understood that the present utility model is intended to include all such variations and modifications as fall within the spirit and scope of the present utility model.

Claims

1. The utility model provides a dig roller bit that bores soon, includes casing, lower casing, hydraulic pressure center rotary joint and rolls broken subassembly, characterized by: the upper shell and the lower shell are cylindrical, the outer shell of the hydraulic center rotary joint is fixed at the center of the upper surface of the upper panel of the upper shell, a jacking device fixed on a rock wall is arranged in the upper shell, a connecting seat is fixed at the upper end of a transmission shaft inside the hydraulic center rotary joint, the lower end of the transmission shaft of the hydraulic center rotary joint is fixedly connected with the lower shell, and a rolling crushing assembly is arranged in the lower shell;

2. The rotary drill bit according to claim 1, wherein: the connecting seat is of a square pipe body structure, a plurality of connecting holes are correspondingly formed in the opposite surfaces of the connecting seat, and the connecting seat is fixedly connected with an external drilling machine through bolts in the connecting holes.

3. The rotary drill bit according to claim 1, wherein: the arc slot hole is set as the step hole of big outside and small inside, and the outer hole height that is located the arc slot hole outside is greater than the height of inboard hole, and the upper plane board of setting up the gear wheel above the perpendicular bending plate is higher than the higher authority of deflector, and the lower plane of setting up the gear wheel below the upper plane board is less than the below of deflector, and the gear wheel is located the outer hole in the arc slot hole outside, and the outside of the outside protrusion mounting panel outer end face of gear wheel excircle face.

4. The rotary drill bit according to claim 1, wherein: the jacking device comprises a push plate, two supporting seats A, oil cylinders and supporting seats B, wherein the two supporting seats A are respectively arranged on two sides of the middle part below an upper panel of the upper shell, the push plate is slidably arranged in arc holes on two sides of the upper shell, the push plate is an arc plate and is matched with the arc holes, the supporting seats B are respectively fixed on the middle part of the inner face of the push plate, the two oil cylinders are arranged, the bases of the two oil cylinders are hinged in the supporting seats A through hinge shafts, and piston rods of the oil cylinders are respectively hinged with the two supporting seats B.

5. The rotary drill bit according to claim 1, wherein: a turntable bearing is connected between the upper shell and the lower shell, corresponding step holes are respectively arranged at the lower center of the lower bottom plate of the upper shell and the upper center of the upper cover plate of the lower shell, the inner ring of the turntable bearing is arranged in the step hole on the upper cover plate and is fixedly connected with the upper cover plate, the outer ring of the turntable bearing is arranged in the step hole under the lower bottom plate, and fixedly connected with the lower bottom plate, a cylinder body is fixed in the middle between the upper panel of the upper shell and the lower bottom plate, and the lower end of the transmission shaft of the hydraulic center rotary joint sequentially passes through the central hole of the upper panel, the inner hole of the cylinder body and the central hole of the step hole below the lower bottom plate and then is fixedly connected with the inner ring of the turntable bearing and the central hole of the step hole above the upper cover plate.

6. The rotary drill bit according to claim 1, wherein: two long holes are formed in the transmission shaft along the length direction of the transmission shaft, two oil inlet pipelines are arranged in one long hole, two oil outlet pipelines are arranged in the other long hole, the upper ends of the two oil inlet pipelines are respectively connected with an oil inlet on the hydraulic center rotary joint shell, the upper ends of the two oil outlet pipelines are respectively connected with an oil outlet on the hydraulic center rotary joint shell, the lower ends of the two oil inlet pipelines are respectively connected with an oil inlet of the hydraulic cylinder, and the lower ends of the two oil outlet pipelines are respectively connected with an oil return port of the hydraulic cylinder.

7. The rotary drill bit of claim 5, wherein: and a bearing is arranged between the cylinder body and the transmission shaft of the hydraulic center rotary joint.