CN115354966B

CN115354966B - Modular rotary drilling machine drill bit

Info

Publication number: CN115354966B
Application number: CN202211298997.4A
Authority: CN
Inventors: 花国祥
Original assignee: Jiangsu Yidian Technology Co ltd
Current assignee: Jiangsu Yidian Technology Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-03-24
Anticipated expiration: 2042-10-24
Also published as: CN115354966A

Abstract

The invention relates to the field of rotary drilling operation, in particular to a modular rotary drilling machine drill bit which comprises a driving unit, a transmission unit and a working unit, wherein the driving unit, the transmission unit and the working unit are sequentially arranged from top to bottom, the working unit is used for performing rotary drilling operation under the driving of the driving unit, the driving unit comprises a first driving device and a second driving device which are arranged at intervals, the transmission unit comprises a transmission main body and a revolution module arranged on the transmission main body, the transmission main body is used for transmitting the driving force of the second driving device to the working unit to enable the working unit to rotate, the revolution module rotates relative to the transmission main body under the driving of the first driving device, the working unit comprises at least one first drill bit, and one end, far away from the driving unit, of the transmission main body is provided with transmission shafts which correspond to the first drill bits one by one. According to the rotary excavating machine drill bit, the two driving devices are arranged, so that the rotary excavating machine drill bit has the functions of rotation and revolution at the same time, the contact area of the first rotating drill bit is small, the corresponding torque is small, and the torque of the rotary excavating machine drill bit is reduced.

Description

Modular rotary drilling machine drill bit

Technical Field

The invention relates to the field of rotary excavating operation, in particular to a modularized rotary excavating machine drill bit.

Background

The rotary digging machine is also called a rotary digging drilling machine, a pile driver, is a comprehensive drilling machine, can be used for various bottom layers, and has the characteristics of high hole forming speed, less pollution, strong maneuverability and the like. At present, the rotary drilling machine can be matched with a hammer drill to drill holes after a hard stratum is crushed, and if the rotary drilling machine is matched with a drill with an enlarged bit, hole expanding operation can be carried out at the bottom of the hole.

In the prior art, a rotary drilling machine generally adopts a single large drill bit, the contact area of the drilling surface of the drill bit is large, the torque of the drill bit is large, the requirement on a power device is high, the requirements on the quality, the volume and the structure of the drill bit are high, the drill bit module of the rotary drilling machine is heavy, and the operation process of the rotary drilling machine is not flexible.

Disclosure of Invention

It is an object of the present invention to provide a modular rotary excavating machine drill bit that solves the above-mentioned problems of the prior art.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a modular digs quick-witted drill bit soon, includes drive unit, drive unit and the work unit that from top to bottom sets gradually, the work unit is used for digging work, its characterized in that soon under drive unit's drive: the driving unit comprises a first driving device and a second driving device which are arranged at intervals, the transmission unit comprises a transmission main body and a revolution module arranged on the transmission main body, the transmission main body is used for transmitting the driving force of the second driving device to the working unit to enable the working unit to rotate, the revolution module is positioned at one end, close to the working unit, of the transmission main body, the revolution module rotates relative to the transmission main body under the driving of the first driving device, the working unit comprises at least one first drill bit, and transmission shafts corresponding to the first drill bits in a one-to-one mode are arranged at one end, far away from the driving unit, of the transmission main body;

the transmission main body comprises a driving shaft, a gear set and at least one transfer shaft, the driving shaft is in transmission connection with each transfer shaft gear through the gear set, the number of the transfer shafts is in one-to-one correspondence with the number of the first drill bits, the driving shaft is in transmission connection with the first driving device, the first driving device provides axial rotating force for the driving shaft, the driving shaft transmits the axial rotating force to the transfer shafts through the gear set, the bottom end of the transfer shaft is connected with the first drill bits, and the transmission ratio of the driving shaft to the transfer shafts is 0.1-0.95;

the revolution module comprises a connecting ring and an installation rotary table which are sequentially in transmission connection from top to bottom, the coaxiality of the connecting ring, the installation rotary table and the driving shaft is phi 0.05 mm-phi 0.08mm, the inner wall of the connecting ring is a toothed ring surface, the second driving device is in transmission connection with the connecting ring through a gear surface, the second driving device provides driving force for the connecting ring through the toothed ring surface to enable the connecting ring and the installation rotary table to axially rotate, the transfer shaft is installed on the installation rotary table, when the installation rotary table rotates, the transfer shaft revolves, namely, the transfer shaft rotates around the axis of the driving shaft under the driving of the gear set, the gear set comprises a driving gear, a first planetary gear module and a second planetary gear module, the driving gear is sleeved on the driving shaft, an accommodating groove is formed in the installation rotary table, the first planetary gear module is arranged in the accommodating groove of the installation rotary table, the first planetary gear module at least comprises two first gears with rotating shafts, the second planetary gear module comprises second gears which are in one-to-one correspondence with the transfer the second planetary gear module, the bottom end of the transfer driving shaft to the first planetary gear module, and the second planetary gear module is connected with the first planetary gear module, and the second planetary gear module;

the driving unit further comprises a mounting rack, the mounting rack comprises a first equal-height sleeve and a second equal-height sleeve which are sequentially and fixedly connected from top to bottom, the first driving device and the second driving device are fixedly installed on the first equal-height sleeve, a plurality of negative pressure pipes are axially and uniformly installed in the second equal-height sleeve, one end of each negative pressure pipe is attached to the outer surface of the second equal-height sleeve, and the other end of each negative pressure pipe is fixedly installed at the inner bottom of the first equal-height sleeve through a pipe joint;

the transmission unit further comprises a fixing module and a rotating ring, the fixing module is fixedly connected with the second-class high sleeve, the fixing module comprises an outer fixing ring and an inner fixing ring which are concentrically arranged, the inner diameter of the outer fixing ring is larger than the outer diameter of the inner fixing ring, the rotating ring is rotatably connected with the fixing module, the outer wall of the rotating ring is in clearance fit with the inner wall of the outer fixing ring, the inner wall of the rotating ring is in clearance fit with the outer wall of the inner fixing ring, an annular bulge is arranged at the top end of the inner wall of the rotating ring, a groove corresponding to the annular bulge is formed in the top end of the inner wall of the rotating ring, a plurality of sealing assemblies are arranged on the binding face of the outer fixing ring and the rotating ring and on the binding face of the rotating ring and the inner fixing ring, an extending edge is arranged on the outer side of the bottom end of the rotating ring and is used for fixedly connecting the rotating ring and the connecting ring.

Through adopting above-mentioned technical scheme, the quick-witted drill bit of digging soon has the function of revolution and rotation concurrently, and the drive arrangement of revolution subassembly and rotation subassembly independently distinguishes the setting, can reduce the torque on the basis that reaches equal probing effect.

In a further embodiment, a plurality of discharge grooves are uniformly arranged on the outer wall of the mounting turntable in the axial direction, and the radial direction of each discharge groove is arc-shaped.

In a further embodiment, the first driving device and the second driving device are both power devices for providing axial rotating force.

In a further embodiment, the first drive device is one of an electric motor, a hydraulic motor, a pneumatic motor or an oil motor, and the second drive device is one of an electric motor, a hydraulic motor, a pneumatic motor or an oil motor.

In a further embodiment, a liquid cooling loop for cooling the driving shaft is arranged on the transmission unit.

In a further embodiment, the bottom end of the driving shaft extends to the outer bottom of the mounting turntable, a first drill bit is arranged at one end, located at the outer bottom of the mounting turntable, of the driving shaft, and a plurality of sealing assemblies are arranged on the mounting turntable in positions penetrating through the driving shaft.

In a further embodiment, the distance between the first drill bit mounted on the drive shaft and the mounting turntable is greater than the distance between the first drill bit mounted on the split shaft and the mounting turntable.

In a further embodiment, the working unit further comprises a second drill bit, the size of the second drill bit is different from that of the first drill bit, the second drill bit is connected to the bottom end of the driving shaft, and the first drill bit is connected to the bottom end of the split shaft. The diameter of the second drill bit is greater than the diameter of the first drill bit.

In a further embodiment, the steering of the drive shaft is the same as the steering of the split shaft.

In a further embodiment, the rotation direction of the drive shaft is opposite to that of the driven shaft.

In a further embodiment, the driving shaft and the mounting dial are steered in the same direction.

In a further embodiment, the direction of rotation of the drive shaft is opposite to that of the mounting dial.

In a further embodiment, the bottom of the mounting turntable is fixedly provided with a plurality of material guiding strips, the material guiding strips are distributed in a rotating manner, when the rotary excavator drill bit works, the working unit simultaneously rotates and revolves, and in a revolution period, the vertical projection of the working area of the working unit is a solid circle.

In conclusion, the invention has the following beneficial effects:

1. the modular rotary excavator drill bit provided by the invention is provided with two driving devices, the second driving device realizes the rotation of a first drill bit connected with a transfer shaft through a driving shaft, a gear set and at least one transfer shaft, the first driving device is a connecting ring through a rotating ring and a fixed module, an installation turntable rotates relative to a driving unit, the installation turntable drives the transfer shaft to revolve when rotating, the rotary excavator drill bit has the functions of rotation and revolution simultaneously, the contact area of the rotating first drill bit is small, the corresponding torque is small, and the reduction of the torque of the rotary excavator drill bit is realized on the basis of achieving the equivalent drilling effect;

2. when the modularized rotary excavating machine drill bit works, the drill bit module simultaneously rotates and revolves, and in a revolution period, the downward vertical projection of the drill bit module is a solid circle, namely, a full-area projection, so that downward overall cutting and milling can be realized;

3. the modular rotary drilling machine drill bit can be provided with a plurality of drill bits, so that the structure of the drill bit module is simplified, the overall volume of the rotary drilling machine drill bit is reduced, the lightweight design is realized, and the drilling work is more flexible.

Drawings

FIG. 1 is a schematic overall construction of a modular rotary excavating machine bit of the present invention;

FIG. 2 is a perspective view of a modular rotary excavating machine bit of the present invention;

FIG. 3 is a half-sectional view of a modular rotary excavating machine bit of the present invention;

FIG. 4 is an overall block diagram of a modular rotary excavating machine bit of the present invention;

fig. 5 is a system block diagram of a modular rotary excavator drill bit of the present invention.

In the figure, 100, a drive unit; 104. 105, 106, a first driving device; 107. a second driving device; 200. a transmission unit; 203. 207 connecting ring, driving shaft; 208. a branch shaft; 209. a gear set; 210. installing a turntable; 231. a fixed module; 232. 241, an outer fixing ring 242 and an inner fixing ring; 281. 282, a first planetary gear module; 283. a second planetary gear module; 300. a working unit; 400. a discharge chute; 500. and (4) guiding the material strips.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals.

The direction settings in the examples are as follows: the drilling direction of the rotary excavating machine drill bit is downward, namely the direction of the driving module relative to the drill bit module is upward, and the direction of the drill bit module relative to the driving module is downward.

It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present specification, "a plurality" means two or more.

In one embodiment, referring to fig. 1 and 2, the present embodiment provides a modular rotary excavating machine drill bit, which includes a driving unit 100, a transmission unit 200 and a working unit 300 coaxially connected in a transmission manner from top to bottom, wherein the driving unit 100 provides a driving force to the working unit 300 through the transmission unit 200. Referring to fig. 2 and 3, in the present embodiment, the driving unit 100 includes a first driving device 106 and a second driving device 107 which are arranged at an interval, the transmission unit 200 includes a transmission body and a revolution module arranged on the transmission body, the transmission body is used for transmitting the driving force of the second driving device 107 to the working unit 300 to enable the working unit to rotate, the revolution module is located at one end of the transmission body close to the working unit 300, the revolution module is driven by the first driving device 106 to rotate relative to the transmission body, the working unit 300 includes at least one first drill, and one end of the transmission body far away from the driving unit is provided with a transmission shaft corresponding to the first drill one to one;

the transmission main body comprises a driving shaft 207, a gear set 209 and at least one split shaft 208, the driving shaft 207 is in gear transmission connection with each split shaft 208 through the gear set 209, the number of the split shafts 208 corresponds to the number of the first drill bits one by one, the driving shaft 207 is in transmission connection with the first driving device 106, the first driving device 106 provides axial rotating force for the driving shaft 207, the driving shaft 207 transmits the axial rotating force to the split shafts 208 through the gear set 209, the first drill bits are connected to the bottom ends of the split shafts 208, and the transmission ratio of the driving shaft 207 to the split shafts 208 is 0.1-0.95;

the revolution module comprises a connecting ring 203 and a mounting rotary table 210 which are in transmission connection from top to bottom, the coaxiality of the connecting ring 203, the mounting rotary table 210 and a driving shaft 207 is phi 0.05 mm-phi 0.08mm, the inner wall of the connecting ring 203 is a toothed annular surface, the second driving device 107 is in transmission connection with the connecting ring 203 through the toothed surface, the second driving device 107 provides driving force for the connecting ring 203 through the toothed annular surface so that the connecting ring 203 and the mounting rotary table 210 both rotate axially, the branch shaft 208 is mounted on the mounting rotary table 210, when the mounting rotary table 210 rotates, the branch shaft 208 revolves, namely, the branch shaft 208 rotates around the axis of the driving shaft 207 under the driving of the gear set 209, the gear set 209 comprises a driving gear 281, a first planetary gear module 282 and a second planetary gear module 283, the driving gear 281 is sleeved on the driving shaft 207, a containing groove is arranged on the mounting rotary table 210, the first planetary gear module 282 is arranged in the containing groove of the mounting rotary table 210, the first planetary gear module 283 comprises at least two first gears with rotating shafts, the second planetary gear 283, the second planetary gear module 208 and the second planetary gear module is correspondingly connected with the driving shaft 210, and the driving force of the second planetary gear module is used for transmitting the driving gear module to the driving gear 281 to the driving gear 208, and the driving gear 281 is extended to the driving shaft 207, and the driving shaft 210, and the driving gear 281 is extended to the second planetary gear module, and the driving gear module is extended to the driving shaft 207 and the driving gear module, the driving gear module is extended to the driving gear module, and the driving gear module is extended to the driving gear module and the driving shaft 207;

the driving unit 100 further comprises a mounting rack, the mounting rack comprises a first equal-height sleeve 104 and a second equal-height sleeve 105 which are sequentially and fixedly connected from top to bottom, a first driving device 106 and a second driving device 107 are fixedly installed on the first equal-height sleeve 104, a plurality of negative pressure pipes are axially and uniformly installed in the second equal-height sleeve 105, one end of each negative pressure pipe is attached to the outer surface of the second equal-height sleeve 105, and the other end of each negative pressure pipe is fixedly installed at the inner bottom of the first equal-height sleeve 104 through a pipe joint;

the transmission unit 200 further comprises a fixing module 231 and a rotating ring 232, the fixing module 231 is fixedly connected with the second equal-height sleeve 105, the fixing module 231 comprises an outer fixing ring 241 and an inner fixing ring 242 which are concentrically arranged, the inner diameter of the outer fixing ring 241 is larger than the outer diameter of the inner fixing ring 242, the rotating ring 232 is rotatably connected with the fixing module, the outer wall of the rotating ring 232 is in clearance fit with the inner wall of the outer fixing ring 241, the inner wall of the rotating ring 232 is in clearance fit with the outer wall of the inner fixing ring 242, an annular bulge is arranged at the top end of the inner wall of the rotating ring 232, a groove corresponding to the annular bulge is arranged at the top end of the inner wall of the rotating ring 232 on the outer wall of the inner fixing ring 242, a plurality of sealing assemblies are arranged on the jointing face of the outer fixing ring 241 and the rotating ring 232 and the jointing face of the rotating ring 232 and the inner fixing ring 242, an extending edge is arranged on the outer side of the bottom end of the rotating ring 232, and the extending edge is used for fixedly connecting ring 232 and the connecting ring 203.

The structure disclosed in the present embodiment is a driving and transmission structure for realizing revolution and rotation functions, i.e. the most central structural component, and other structural components (such as a housing component, a mounting bracket, and the like) of the rotary-excavating machine drill bit are omitted in the present embodiment, so that it cannot be narrowly understood that the drill bit can be used as a complete rotary-excavating machine drill bit only by the component structure disclosed in the present embodiment, and the part disclosed in the present embodiment is sufficient for those skilled in the art to understand how the rotary-excavating machine drill bit can simultaneously realize revolution and rotation functions, and those skilled in the art can complement and perfect other constituent structures of the rotary-excavating machine drill bit in combination with the prior art.

In an embodiment, referring to fig. 1 and 5, the embodiment provides a modular rotary excavating machine drill, including a driving unit 100, a transmission unit 200, and a working unit 300, which are sequentially arranged from top to bottom, where the working unit 300 is configured to perform rotary excavating work under driving of the driving unit 100, the driving unit 100 includes a first driving device 106 and a second driving device 107 which are arranged at intervals, the transmission unit 200 includes a transmission body and a revolution module arranged on the transmission body, the transmission body is configured to transmit driving force of the second driving device 107 to the working unit 300 to enable the working unit 300 to rotate, the revolution module is located at one end of the transmission body close to the working unit 300, the revolution module rotates relative to the transmission body under driving of the first driving device 106, the working unit 300 includes at least one first drill, and one end of the transmission body far from the driving unit is provided with transmission shafts corresponding to the first drill one by one. In a specific embodiment, the working unit 300 includes a first drill, the first drill is a milling cutter, the milling cutter is a conical cutter, and a plurality of cutter heads are mounted on an outer conical surface of the milling cutter. In one embodiment, referring to fig. 2, the driving unit 100 includes a first driving device 106 and a second driving device 107, and the first driving device 106 and the second driving device 107 are symmetrically distributed, and the symmetrical distribution helps to avoid the shift of the center of gravity of the overall structure of the drill.

In this embodiment, the first driving device 106 and the second driving device 107 are both power devices for providing axial rotation force. The first driving device 106 is one of an electric motor, a hydraulic motor, a pneumatic motor or a fuel motor, the second driving device 107 is one of an electric motor, a hydraulic motor, a pneumatic motor or a fuel motor, the first driving device 106 and the second driving device 107 are not limited to the same type or the same model of driving device, and a designer can flexibly select and adjust the driving device according to actual drilling requirements.

In a specific embodiment, referring to fig. 2, the first driving device 106 is a driving motor (one type of electric motor), and the second driving device 107 is a hydraulic motor, which is configured to: the first driving device 106 is used for providing autorotation driving force for the driving shaft 207 and the transfer shaft 208, the second driving device 107 is used for providing driving force for the mounting turntable 210, the autorotation speed of the transfer shaft 208 is greater than the rotation speed of the mounting turntable 210, namely, the autorotation rotation speed is greater than the revolution rotation speed, so that the driving motor can realize high-speed rotation of the transfer shaft 208, and the revolution part can be regarded as the whole mounting turntable 210 to rotate, the torque during rotation is large, so that the torque requirement can be met only by arranging a hydraulic motor as the driving device for revolution.

In a specific embodiment, referring to fig. 3 and 4, the bottom end of the driving shaft 207 extends to the outer bottom of the mounting turntable 210, a first drill is disposed at one end of the driving shaft 207, which is located at the outer bottom of the mounting turntable 210, and a plurality of sealing assemblies are disposed on the mounting turntable 210 at positions passing through the driving shaft 207.

In a specific embodiment, the transmission unit 200 is provided with a liquid cooling loop for cooling the driving shaft 207. Because the first transmission assembly and the transmission main body of the transmission unit 200 all rotate in the working process, and the outer wall of the transmission main body is actually contacted with rock soil, a large amount of heat can be accumulated in the working process of the transmission unit 200, the liquid cooling loop is arranged to cool the transmission unit 200, and the liquid cooling loop has the lubricating effect in addition, so that the transmission unit 200 is protected, and the service life of the transmission unit is prolonged. It should be noted that the specific solution of the liquid cooling loop is a mature prior art, and a related technician can design a specific structure by himself, and the creative contribution in this embodiment lies in providing the liquid cooling loop for the transmission unit 200 for cooling protection.

In a specific embodiment, referring to fig. 1, a plurality of discharge grooves 400 are uniformly arranged on the outer wall of the sixth circular plate 205 in the axial direction, and the radial direction of the discharge grooves 400 is an arc. When the rotary cutter drill bit drills, the working unit 300 mills downward, and the milled and cut rock soil blocks are discharged upward through the discharge groove 400, and since the mounting turntable 210 rotates, the discharge groove 400 is designed to have an arc shape in a radial direction (i.e., a spiral structure groove), which can help increase the discharge speed.

In a specific embodiment, referring to fig. 1 and fig. 2, a plurality of material guiding strips 500 are fixedly installed at the bottom of the installation turntable 210, the plurality of material guiding strips 500 are rotationally distributed, and each material guiding strip 500 is in an arc shape. The circular arc shaped guide strips 500 are provided to push and stack the rock clod fragments milled and cut by the working unit 300, thereby facilitating the subsequent discharge and dust suction work of the rotary drilling machine.

In the embodiment, a refined structure of the drill bit of the rotary drilling machine is provided, and for clearly explaining the scheme, the embodiment describes specific structures of other parts (including a shell part, a connecting part and the like) in detail besides structural parts of the drill bit of the rotary drilling machine for realizing revolution and rotation functions. It should be understood that the rotary excavating machine drill of the present embodiment is one of the drill solutions with revolution and rotation functions, and those skilled in the art can still make modifications without inventive contribution when making substitutions to a single or multiple parts and making different structural substitutions with the same function after reading the present embodiment.

In an embodiment, referring to fig. 4, the embodiment provides a modular rotary excavating machine drill, the rotary excavating machine drill includes a driving unit 100, a transmission unit 200, and a working unit 300 sequentially arranged from top to bottom, the working unit 300 is configured to perform rotary excavating work under driving of the driving unit 100, the driving unit 100 includes a first driving device 106 and a second driving device 107 arranged at intervals, the transmission unit 200 includes a transmission body and a revolution module arranged on the transmission body, the transmission body is configured to transmit a driving force of the second driving device 107 to the working unit 300 to enable the working unit 300 to rotate, the revolution module is located at one end of the transmission body close to the working unit 300, the revolution module rotates relative to the transmission body under driving of the first driving device 106, the working unit 300 includes at least one first drill, and one end of the transmission body far from the driving unit is provided with transmission shafts corresponding to the first drill one by one. In this embodiment, referring to fig. 1 and fig. 2, the working unit 300 includes a first drill and a second drill, both of which are tapered milling cutters, and the conical surface is mounted with blades, and the second drill is different from the first drill in size, where the size includes one or more combinations of the height of the top of the cone, the diameter of the bottom of the cone (i.e., the diameter of the drill), or the arrangement of the blades on the conical surface.

In this embodiment, the bottom end of the split shaft 208 is connected to the second drill, the bottom end of the driving shaft 207 may be connected to the first drill or the second drill, the bottom end of the driving shaft 207 may also be not connected to the first drill, the second drill or other parts, that is, the second drill is an unnecessary part in the working unit 300, all drill components included in the working unit 300 may be set as the first drill, and the specific setting scheme of the working unit 300 is determined according to the actual working condition of the rotary excavator drill.

In a specific embodiment, the second drill is connected to the bottom end of the driving shaft 207, the first drill is connected to the bottom end of the split shaft 208, and the diameter of the second drill is larger than that of the first drill.

In a further embodiment, the length of the driving shaft 207 outside the installation turntable 210 and the length of the dividing shaft 208 outside the installation turntable 210 are not limited to be the same, and the following description is provided according to three cases that the length of the driving shaft 207 outside the installation turntable 210 is greater than the length of the driven shaft 208 outside the installation turntable 210, the length of the driving shaft 207 outside the installation turntable 210 is less than the length of the dividing shaft 208 outside the installation turntable 210, and the length of the driving shaft 207 outside the installation turntable 210 is equal to the length of the dividing shaft 208 outside the installation turntable 210, respectively:

when the length of the driving shaft 207 outside the installation turntable 210 is longer than the length of the branch shaft 208 outside the installation turntable 210, the first drill bit or the second drill bit connected to the driving shaft 207 firstly contacts with a drilling object to be milled and cut, and the first drill bit connected to the branch shaft 208 secondarily mills and cuts the object milled by the first drill bit connected to the driving shaft 207, so that the crushing effect is improved, and because the first drill bit connected to the branch shaft 208 revolves at the same time, the adoption of the two-stage milling is beneficial to relieving the milling pressure of the first drill bit connected to the branch shaft 208, and the protection of the transmission unit 200 is facilitated;

when the length of the driving shaft 207 outside the installation turntable 210 is smaller than the length of the split shaft 208 outside the installation turntable 210, a first drill connected to the split shaft 208 firstly contacts a drilling object to perform milling and cutting, at the moment, the driving shaft 207 has three conditions of connecting the first drill, connecting the second drill and disconnecting, when the driving shaft 207 is connected with the first drill or the second drill, the drill connected to the driving shaft 207 is responsible for crushing accumulated milling products to avoid accumulation and blockage of the milling products, and when the driving shaft 207 is disconnected, only the first drill on the split shaft 208 works;

when the length of the driving shaft 207 outside the installation turntable 210 is equal to the length of the transfer shaft 208 outside the installation turntable 210, the driving shaft 207 has three conditions of connecting a first drill bit, connecting a second drill bit and not connecting, when the driving shaft 207 is not connected, namely, only the first drill bit on the transfer shaft 208 works, when the driving shaft 207 is connected with the first drill bit or the second drill bit, the working unit 300 needs to pay attention to avoid the first drill bit or the second drill bit connected on the driving shaft 207 and the first drill bit connected on the transfer shaft 208 from generating motion interference during design.

In one embodiment, please refer to fig. 1 and 5, the embodiment provides a modular rotary excavating machine drill bit, which includes a driving unit 100, a transmission unit 200, and a working unit 300 sequentially arranged from top to bottom, wherein the working unit 300 is used for performing rotary excavating work under the driving of the driving unit 100, and is characterized in that: the driving unit 100 comprises a first driving device 106 and a second driving device 107 which are arranged at intervals, the driving unit 200 comprises a driving body and a revolution module arranged on the driving body, the driving body is used for transmitting the driving force of the second driving device 107 to the working unit 300 to enable the working unit 300 to rotate, the revolution module is arranged at one end, close to the working unit 300, of the driving body, the revolution module rotates relative to the driving body under the driving of the first driving device 106, the working unit 300 comprises at least one first drill bit, one end, far away from the driving unit, of the driving body is provided with a transmission shaft in one-to-one correspondence with the first drill bit, the driving body comprises a driving shaft 207, a gear set 209 and at least one revolution shaft 208, and the revolution module comprises a connecting ring 203 and an installation turntable 210 which are sequentially connected from top to bottom. In this embodiment, the number of the driving shafts 207 is one, the number of the transfer shafts 208 is more than one, and the transfer shafts 208 are not limited to be arranged uniformly, that is, the transfer shafts 208 may surround the driving shafts 207 uniformly at equal angles, or the transfer shafts 208 may be arranged on the driving shafts 207 non-uniformly. In one specific embodiment, referring to fig. 1 and 2, the number of the transfer shafts 208 is three, and the three transfer shafts 208 surround the driving shaft 207 at equal angles.

In this embodiment, when the rotary excavator drill bit works, the working unit 300 rotates and revolves simultaneously, in one revolution period, the working unit 300 includes a first drill bit connected to the driven shaft 208 and a first drill bit or a second drill bit connected to the driving shaft 207, when the driving shaft 207 is not connected to a drill bit, only the downward vertical projection of the first drill bit connected to the driven shaft 208 is calculated to be a solid circle, that is, a full-area projection, and at this time, the working unit 300 can realize downward full-area milling.

In this embodiment, the movement pattern of the working unit 300 is determined by the driving shaft 207, the transfer shaft 208 and the installation turntable 210, and may be specifically divided into four basic settings, i.e., the same rotation direction of the driving shaft 207 and the transfer shaft 208, the opposite rotation direction of the driving shaft 207 and the transfer shaft 208, the same rotation direction of the driving shaft 207 and the installation turntable 210, and the opposite rotation direction of the driving shaft 207 and the installation turntable 210, and the movement pattern of the working unit 300 is obtained based on a combination of the four basic settings.

In the embodiments of the present disclosure, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the disclosed embodiments of the invention can be understood by those of ordinary skill in the art as appropriate. The embodiments in this specification may refer to the same or similar parts, and each embodiment is described with emphasis on the difference from the other embodiments. It should be noted that, the technical features of the embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above-mentioned embodiments only express some preferred embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these should be construed as the protection scope of the present application. Therefore, the protection scope of the present patent shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a modular digs quick-witted drill bit soon, includes drive unit (100), drive unit (200) and the work unit (300) that from top to bottom sets gradually, work unit (300) are used for digging work, its characterized in that soon under the drive of drive unit (100): the driving unit (100) comprises a first driving device (106) and a second driving device (107) which are arranged at intervals, the transmission unit (200) comprises a transmission body and a revolution module arranged on the transmission body, the transmission body is used for transmitting the driving force of the second driving device (107) to the working unit (300) to enable the working unit (300) to rotate, the revolution module is located at one end, close to the working unit (300), of the transmission body, the revolution module rotates relative to the transmission body under the driving of the first driving device (106), the working unit (300) comprises at least one first drill bit, and one end, far away from the driving unit, of the transmission body is provided with transmission shafts corresponding to the first drill bits one to one;

the transmission main body comprises a driving shaft (207), a gear set (209) and at least one split shaft (208), the driving shaft (207) is in gear transmission connection with each split shaft (208) through the gear set (209), the number of the split shafts (208) corresponds to the number of the first drill bits one by one, the driving shaft (207) is in transmission connection with the first driving device (106), the first driving device (106) provides axial rotating force for the driving shaft (207), the driving shaft (207) transmits the axial rotating force to the split shafts (208) through the gear set (209), the bottom end of the split shaft (208) is connected with the first drill bits, and the transmission ratio of the driving shaft (207) to the split shafts (208) is 0.1-0.95;

revolution module is including go up connecting ring (203) and installation carousel (210) that from top to bottom transmission connects in proper order, go up connecting ring (203), installation carousel (210) and driving shaft (207) axiality be phi 0.05 mm-phi 0.08mm, the inner wall of go up connecting ring (203) is the ring gear face, second drive arrangement (107) with go up connecting ring (203) and be connected through the gear face transmission, second drive arrangement (107) do through the ring gear face go up connecting ring (203) provide drive power messenger the equal axial of installation carousel (203) and installation carousel (210) is rotated, minute axis (208) are installed on installation carousel (210), when installation carousel (210) rotate, minute axis (208) revolve, namely minute axis (208) are around under the drive of gear train (209) the axis of driving shaft (207) rotates, gear train (209) include driving gear (281), first planetary gear module (282) and second planetary gear module (283), driving gear (281) cover is established on driving gear (207), installation carousel (210) is provided with first planetary gear module (282) in the installation carousel (282), second planetary gear module (282) include that the first planetary gear (282) set up the installation carousel (207) and the corresponding first planetary gear (282) include that the storage tank (210) are provided with two planetary gear, the installation carousel (282) in the installation carousel (210) include that the installation carousel (210) are to the installation carousel (210) the installation carousel (281) are provided with at least the first planetary gear (282) the installation carousel (210) the first planetary gear module, the installation carousel (281) include that the installation carousel (281) is connected one by the installation carousel (208) is connected one by the first planetary gear (282) and the first planetary gear (210) are connected one-to the installation carousel (207), the installation carousel (281), the second planetary gear (210) include that the installation carousel (281), the installation carousel (207) is provided with the installation carousel (282) is connected one-to the installation carousel (207) is provided with the planet axis one-to the installation carousel (210) the installation carousel (208) is connected, the installation carousel (210) the planet axis that the installation carousel (210) is connected, the installation carousel (281) is connected one-to the installation carousel (282) is connected, the planet axis that The bottom end of the rotating shaft (208) extends to the outer side of the mounting turntable (210) and is fixedly connected with the first drill bit, the first planetary gear module (282) is used for transmitting the driving force transmitted from the driving shaft (207) to the driving gear (281) to the second planetary gear module (283), and the second gear of the second planetary gear module (283) rotates to drive the rotating shaft (208) to rotate;

the driving unit (100) further comprises an installation frame, the installation frame comprises a first equal-height sleeve (104) and a second equal-height sleeve (105) which are sequentially and fixedly connected from top to bottom, a first driving device (106) and a second driving device (107) are fixedly installed on the first equal-height sleeve (104), a plurality of negative pressure pipes are axially and uniformly installed in the second equal-height sleeve (105), one end of each negative pressure pipe is attached to the outer surface of the second equal-height sleeve (105), and the other end of each negative pressure pipe is fixedly installed at the inner bottom of the first equal-height sleeve (104) through a pipe joint;

the transmission unit (200) further comprises a fixed module (231) and a rotating ring (232), the fixed module (231) is fixedly connected with the second equal-height sleeve (105), the fixed module (231) comprises an outer fixed ring (241) and an inner fixed ring (242) which are concentrically arranged, the inner diameter of the outer fixed ring (241) is larger than the outer diameter of the inner fixed ring (242), the rotating ring (232) is rotatably connected with the fixed module, the outer wall of the rotating ring (232) is in clearance fit with the inner wall of the outer fixed ring (241), the inner wall of the rotating ring (232) is in clearance fit with the outer wall of the inner fixed ring (242), an annular bulge is arranged at the top end of the inner wall of the inner fixed ring (242), a groove corresponding to the annular bulge is formed in the top end of the inner wall of the rotating ring (232), a plurality of sealing assemblies are arranged on the binding face of the outer fixed ring (241) and the binding face of the rotating ring (232) and on the binding face of the rotating ring (232) and the inner fixed ring (242), the bottom end of the rotating ring (232) is provided with an extending edge (203), and the rotating ring (232) is connected with the extended edge.

2. A modular rotary excavating machine drill bit according to claim 1 wherein: the outer wall axial of installation carousel (210) evenly is provided with a plurality of row material grooves (400), arrange radially for the arc of material groove (400).

3. A modular rotary excavating machine drill bit according to claim 1 wherein: the first driving device (106) and the second driving device (107) are both power devices for providing axial rotating force.

4. A modular rotary excavating machine drill bit according to claim 3 wherein: the first drive means (106) is one of an electric motor, a hydraulic motor, a pneumatic motor or a fuel motor, and the second drive means (107) is one of an electric motor, a hydraulic motor, a pneumatic motor or a fuel motor.

5. A modular rotary excavating machine drill bit according to claim 1 wherein: and a liquid cooling loop for cooling the driving shaft (207) is arranged on the transmission unit (200).

6. A modular rotary excavating machine drill bit according to claim 1 wherein: the bottom of driving shaft (207) extends to the outer bottom of installation carousel (210), the one end that driving shaft (207) are located the outer bottom of installation carousel (210) is provided with first drill bit, the position of passing driving shaft (207) on installation carousel (210) is provided with a plurality of seal assembly.

7. A modular rotary excavating machine drill bit according to claim 6 wherein: the distance between the first drill bit arranged on the driving shaft (207) and the mounting rotary disc (210) is larger than the distance between the first drill bit arranged on the split shaft (208) and the mounting rotary disc (210).

8. A modular rotary excavating machine drill bit according to claim 1 wherein: the working unit (300) further comprises a second drill bit, the size of the second drill bit is different from that of the first drill bit, the bottom end of the driving shaft (207) is connected with the second drill bit, the bottom end of the split shaft (208) is connected with the first drill bit, and the diameter of the second drill bit is larger than that of the first drill bit.

9. A modular rotary excavating machine drill bit according to claim 1 wherein: the driving shaft (207) and the driven shaft (208) rotate in the same direction.

10. A modular rotary excavating machine drill bit according to claim 1 wherein: the rotation direction of the driving shaft (207) is opposite to that of the driven shaft (208).

11. A modular rotary excavating machine drill bit according to claim 1 wherein: the driving shaft (207) and the mounting turntable (210) rotate in the same direction.

12. A modular rotary excavating machine drill bit according to claim 1 wherein: the rotation direction of the driving shaft (207) is opposite to that of the mounting turntable (210).

13. A modular rotary excavating machine drill bit according to claim 1 wherein: the bottom fixed mounting of installation carousel (210) has a plurality of guide strip (500), a plurality of guide strip (500) rotatory distribution, every guide strip (500) radially be arc.

14. A modular rotary excavating machine bit according to any one of claims 1 to 13 wherein: when the rotary excavating machine drill bit works, the working unit (300) rotates and revolves simultaneously, and in a revolution period, the vertical projection of the working area of the working unit (300) is a solid circle.