CN109854721B - Driving part of rock-socketed drilling machine - Google Patents
Driving part of rock-socketed drilling machine Download PDFInfo
- Publication number
- CN109854721B CN109854721B CN201910147760.8A CN201910147760A CN109854721B CN 109854721 B CN109854721 B CN 109854721B CN 201910147760 A CN201910147760 A CN 201910147760A CN 109854721 B CN109854721 B CN 109854721B
- Authority
- CN
- China
- Prior art keywords
- end cover
- driving part
- variable frequency
- roller bearings
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Earth Drilling (AREA)
Abstract
The invention provides a driving part of a rock-socketed drilling machine, which comprises two variable frequency motor groups symmetrically arranged, a thrust bearing box in transmission connection with the variable frequency motors, and a driving part shell for installing the variable frequency motor groups and the thrust bearing box, wherein each variable frequency motor group comprises a plurality of variable frequency motors, a planetary gear box which is respectively in transmission connection with each variable frequency motor and is fixedly installed on the driving part shell, and a pinion shaft assembly which is respectively fixedly connected with an output shaft of the planetary gear box and is arranged in the driving part shell. The driving part is driven by a variable frequency motor, has wide speed change range, high output energy efficiency and large output torque, can rotate positively and negatively, and can bear very large axial load in stepless speed change. The driving part is provided with two thrust spherical roller bearings and two cylindrical roller bearings respectively, so that the driving part can bear very large axial force and lateral force, and the use requirements under various working conditions are met. The driving part is connected with the sliding frame by a flange, and the middle part is provided with a positioning spigot, so that the positioning is accurate and the installation is convenient.
Description
Technical Field
The invention belongs to the field of shield equipment, and particularly relates to a driving part of a rock-socketed drilling machine.
Background
The prior driving part of the rock-socketed drilling machine has the following defects: the axial bearing load is small, the total output efficiency is low, the slurry discharging channel is easy to wear and replace frequently, the slurry is easy to enter the driving part, and the air leakage of the air inlet channel is easy to occur.
Disclosure of Invention
The invention aims to provide a driving part of a rock-socketed drilling machine, which has high output energy efficiency and large output torque.
In order to achieve the above purpose, the invention provides a driving part of a rock-socketed drilling machine, which comprises two variable frequency motor groups symmetrically arranged, a thrust bearing box connected with the variable frequency motors in a transmission way, and a driving part shell for installing the variable frequency motor groups and the thrust bearing box, wherein each variable frequency motor group comprises a plurality of variable frequency motors, a planetary gear box respectively connected with each variable frequency motor in a transmission way and fixedly installed on the driving part shell, and a pinion shaft assembly respectively fixedly connected with an output shaft of the planetary gear box and arranged in the driving part shell, the thrust bearing box comprises an output shaft rotationally connected in the driving part shell, a bearing assembly connected between the output shaft and the driving part shell, and an end cover assembly fixed on the upper end surface of the driving part shell and provided on the upper end part of the driving shaft in a sealing cover, and the output shaft is fixedly connected with a drill rod.
Preferably, the variable frequency motor unit comprises three variable frequency motors, the variable frequency motors are distributed in a sector shape by taking the axis of the drill rod as the central line, the included angle formed by the connecting lines of the axes of the rotating shafts of two adjacent motors and the axis of the drill rod is the same in degree, and the included angle degree is 35-45 degrees.
Preferably, the output shaft comprises a main shaft body and a connecting ring protruding from the peripheral surface of the main shaft body, the bearing assembly comprises thrust spherical roller bearings respectively sleeved on the main shaft body and respectively positioned above and below the connecting ring, full-installed cylindrical roller bearings are respectively arranged above the upper thrust spherical roller bearings and below the lower thrust spherical roller bearings, an outer ring of the full-installed cylindrical roller bearings is arranged in a top shell of the driving part shell in a penetrating manner, an inner ring of the full-installed cylindrical roller bearings is sleeved on the main shaft body and is approximately flush with the upper end surface of the top shell, the end cover assembly comprises a lower end cover and an upper end cover, the lower end cover is circumferentially covered on the upper end surfaces of the top shell and the outer ring of the full-installed cylindrical roller bearings, the lower end cover is further provided with an extension section penetrating into the main shaft body, an inner sealing tube penetrating the extension section is arranged on the inner side of the upper end of the main shaft body, and a plurality of sealing rings are arranged between the diffraction section and the inner sealing tube.
Further, the end cover assembly further comprises an upper end cover which is covered on the lower end cover and is provided with an inner sealing tube, wherein the upper end cover is inserted between the inner sealing tube and the lower end cover, the upper end part of the upper end cover is provided with an upper end cover extending part which extends towards the radial direction of the upper end cover and is covered on the upper end cover, and a plurality of sealing rings are respectively arranged between the inner side wall of the extending section and the inner sealing tube.
Preferably, the output shaft is hollow, and the inner side wall of the output shaft is provided with a wear-resistant layer.
Preferably, the main shaft body is internally provided with an inner liner tube, the inner diameter of the upper end part of the inner seal tube is the same as the inner diameter of the inner liner tube, the inner seal tube is coaxial with the inner liner tube, a first gap and a second gap are formed between the lower end cover and the main shaft body and the inner seal tube respectively, a through hole is formed in the lower end cover, an air channel is formed in the lower end cover, a compressed air flow channel is formed among the air channel, the through hole, the first gap and the second gap, and compressed air enters the wear-resisting layer through the compressed air flow channel to carry out slurry.
The invention has the following advantages: the driving part is driven by a variable frequency motor, has wide speed change range, high output energy efficiency and large output torque, can rotate positively and negatively, and can bear very large axial load in stepless speed change. The driving part is provided with two thrust spherical roller bearings and two cylindrical roller bearings respectively, so that the driving part can bear very large axial force and lateral force, and the use requirements under various working conditions are met. The driving part is connected with the sliding frame by a flange, and the middle part is provided with a positioning spigot, so that the positioning is accurate and the installation is convenient.
Drawings
FIG. 1 is a top view of a drive section of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a partial view B of fig. 2.
Detailed Description
The invention will be further described with reference to examples of drawings.
As shown in fig. 1, 2 and 3, the driving part 4 includes two inverter motor groups symmetrically arranged, a thrust bearing box 42 in transmission connection with the inverter motor 41, and a driving part housing 43 for mounting the inverter motor groups and the thrust bearing box 42, each inverter motor group includes a plurality of inverter motors 41, a planetary gear box 44 respectively in transmission connection with each inverter motor 41 and fixedly mounted on the driving part housing 43, and a pinion shaft assembly 46 respectively fixedly connected with an output end of the planetary gear box 44 and disposed in the driving part housing 43, the thrust bearing box 42 includes an output shaft 45 rotatably connected in the driving part housing 43, a bearing assembly connected between the output shaft 45 and the driving part housing 43, and an end cover assembly fixed on an upper end surface of the driving part housing 43 and sealing a cover disposed on an upper end of the driving shaft, and the output shaft 45 is fixedly connected with the drill rod 5. The variable frequency motor unit comprises three variable frequency motors 41, the variable frequency motors are distributed in a sector shape by taking the axis of the drill rod 5 as a central line, the included angle degrees formed by the projection of the rotating shaft axes of two adjacent motors and the common vertical line of the axis of the drill rod 5 on the upper end face of the driving part shell 43 are the same, and the included angle degrees are 35-45 degrees. The output shaft 45 comprises a main shaft body 451 and a connecting ring 452 protruding out of the peripheral surface of the main shaft body 451, the bearing assembly comprises a thrust spherical roller bearing 453 respectively sleeved on the main shaft body 451 and respectively positioned above and below the connecting ring 452, full-installed cylindrical roller bearings 454 are respectively arranged above the upper thrust spherical roller bearing 453 and below the lower thrust spherical roller bearing 453, an outer ring 455 of the full-installed cylindrical roller bearing 454 penetrates through the top shell of the driving part shell 43 and is sleeved on the main shaft body 451 and is approximately flush with the upper end surface of the top shell, the end cover assembly comprises a lower end cover 456 and an upper end cover 457, the lower end cover 456 circumferentially covers the upper end surfaces of the outer ring 455 on the top shell and the full-installed cylindrical roller bearing 454, the lower end cover 456 also has an extension section penetrating into the main shaft body 451, an inner ring is arranged on the inner side of the upper end of the main shaft body 451, an inner sealing ring 4512 penetrating through the extension section is fixed on the inner ring, and a plurality of sealing rings 4512 are arranged between the inner sealing rings 4512 and the inner sealing ring. The end cap assembly further comprises an upper end cap 457 which is covered on the lower end cap 456 and is inserted between the inner sealing tube 4512 and the lower end cap 456, the upper end part of the upper end cap 457 is provided with an upper end cap extension section 458 which extends towards the radial direction and is covered on the upper end cap 457, and a plurality of sealing rings are respectively arranged between the inner side wall of the extension section and the inner sealing tube 4512. The output shaft 45 is hollow, and a wear-resistant layer 459 is arranged on the inner side wall of the output shaft. Liner tube 450 is arranged in main shaft body 451, the inner diameter of the upper end of inner seal tube 4512 is the same as the inner diameter of liner tube 450 and inner seal tube 4512 is coaxial with liner tube 450, first gap 4510 and second gap 4511 are formed between inner seal tube 4512 and main shaft body 451 and liner tube 450 respectively, through holes are formed in the inner seal tube 4512, oiling channel 4514 and air channel 4513 are formed in lower end cover 456, compressed air flow channels are formed by air channel 4513, through holes 4514, first gap 4510 and second gap 4511, a plurality of compressed air flow channels are distributed in a divergent mode by taking the axis of main shaft body as the central line, and slurry is carried out by utilizing the air flow channels to enter wear-resistant layer 459 by adopting the principle of gas lift reverse circulation.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (2)
1. A rock drill drive portion, characterized by: the variable frequency motor unit comprises a plurality of variable frequency motors, a planetary gear box which is respectively connected with each variable frequency motor in a transmission way and fixedly arranged on the driving part shell, and a pinion shaft component which is respectively fixedly connected with an output shaft of the planetary gear box and is arranged in the driving part shell, wherein the thrust bearing box comprises an output shaft which is rotationally connected in the driving part shell, a bearing component which is connected between the output shaft and the driving part shell, and an end cover component which is fixed on the upper end face of the driving part shell and is arranged on the upper end part of a driving shaft in a sealing way, and the output shaft is fixedly connected with a drill rod; the variable frequency motor unit comprises three variable frequency motors, the variable frequency motors are distributed in a sector shape by taking the axis of a drill rod as a central line, the degrees of included angles formed by connecting the axes of rotating shafts of two adjacent motors with the axis of the drill rod are the same, and the degrees of included angles are 35-45 degrees; the output shaft comprises a main shaft body and a connecting ring protruding out of the peripheral surface of the main shaft body, the bearing assembly comprises thrust spherical roller bearings respectively sleeved on the main shaft body and respectively positioned above and below the connecting ring, full-installed cylindrical roller bearings are respectively arranged above the upper thrust spherical roller bearings and below the lower thrust spherical roller bearings, an outer ring of the full-installed cylindrical roller bearings penetrates through a top shell of the driving part shell, an inner ring of the full-installed cylindrical roller bearings is sleeved on the main shaft body and is approximately flush with the upper end surface of the top shell, the end cover assembly comprises a lower end cover and an upper end cover, the circumference of the lower end cover is covered on the upper end surfaces of the outer rings of the top shell and the full-installed cylindrical roller bearings, the lower end cover is further provided with an extension section penetrating into the main shaft body, an inner ring is arranged on the inner side of the upper end of the main shaft body, and a plurality of sealing rings are fixedly arranged between the extension section and the inner sealing tube; the end cover assembly further comprises an upper end cover which is covered on the lower end cover and is inserted between the inner sealing tube and the lower end cover, the upper end part of the upper end cover is provided with an upper end cover extension part which extends towards the radial direction of the upper end cover and is covered on the upper end cover, and a plurality of sealing rings are respectively arranged between the inner side wall of the extension section and the inner sealing tube; the inner diameter of the upper end part of the inner sealing tube is the same as the inner diameter of the lining tube, the inner sealing tube is coaxial with the lining tube, a first gap and a second gap are formed between the lower end cover and the main shaft body and the inner sealing tube respectively, a through hole is formed in the lower end cover, an air channel is formed in the lower end cover, a compressed air flow channel is formed among the air channel, the through hole, the first gap and the second gap, and the compressed air enters the wear-resistant layer through the compressed air flow channel to carry out slurry.
2. The rock drill rig drive of claim 1, wherein: the output shaft is hollow, and a wear-resistant layer is arranged on the inner side wall of the output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910147760.8A CN109854721B (en) | 2019-02-27 | 2019-02-27 | Driving part of rock-socketed drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910147760.8A CN109854721B (en) | 2019-02-27 | 2019-02-27 | Driving part of rock-socketed drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109854721A CN109854721A (en) | 2019-06-07 |
| CN109854721B true CN109854721B (en) | 2023-09-08 |
Family
ID=66899339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910147760.8A Active CN109854721B (en) | 2019-02-27 | 2019-02-27 | Driving part of rock-socketed drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109854721B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08105523A (en) * | 1994-10-07 | 1996-04-23 | Isuzu Motors Ltd | Forced lubrication device for transmission |
| CN201090718Y (en) * | 2007-10-31 | 2008-07-23 | 重庆齿轮箱有限责任公司 | Top drive gear box for well drilling |
| CN101949258A (en) * | 2010-09-16 | 2011-01-19 | 于亚鹏 | New gear speed reducer for top drive of petroleum drilling machine |
| CN203488679U (en) * | 2013-08-20 | 2014-03-19 | 山东华成中德传动设备有限公司 | Vertical decelerator |
| CN204140875U (en) * | 2014-09-24 | 2015-02-04 | 日工（上海）工程机械有限公司 | Concrete mixer axis seal apparatus |
| CN108086991A (en) * | 2017-12-27 | 2018-05-29 | 上海振华重工集团(南通)传动机械有限公司 | A kind of new offshore wind farm Pile development machine drive system |
-
2019
- 2019-02-27 CN CN201910147760.8A patent/CN109854721B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08105523A (en) * | 1994-10-07 | 1996-04-23 | Isuzu Motors Ltd | Forced lubrication device for transmission |
| CN201090718Y (en) * | 2007-10-31 | 2008-07-23 | 重庆齿轮箱有限责任公司 | Top drive gear box for well drilling |
| CN101949258A (en) * | 2010-09-16 | 2011-01-19 | 于亚鹏 | New gear speed reducer for top drive of petroleum drilling machine |
| CN203488679U (en) * | 2013-08-20 | 2014-03-19 | 山东华成中德传动设备有限公司 | Vertical decelerator |
| CN204140875U (en) * | 2014-09-24 | 2015-02-04 | 日工（上海）工程机械有限公司 | Concrete mixer axis seal apparatus |
| CN108086991A (en) * | 2017-12-27 | 2018-05-29 | 上海振华重工集团(南通)传动机械有限公司 | A kind of new offshore wind farm Pile development machine drive system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109854721A (en) | 2019-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104959240B (en) | A kind of energy-efficient albumen special horizontal spiral discharge sedimentation centrifuge | |
| CN105736880A (en) | Novel multi-channel central rotary connector of shield tunneling machine | |
| CN104437728B (en) | A kind of single casing gyratory crusher | |
| CN108468617B (en) | Hydraulic rock drill with built-in rotary power output | |
| CN109854721B (en) | Driving part of rock-socketed drilling machine | |
| CN201098837Y (en) | Granite polishing machine grinding head | |
| CN113931651A (en) | Cutting device of special-shaped double-cutter-disc type full-section cutting square pipe jacking machine | |
| CN105257210A (en) | Novel turbodrill capable of achieving accurate positioning of stator and rotor | |
| CN210068891U (en) | Drive part of rock-socketed drilling machine | |
| CN209856352U (en) | Vehicle-mounted coal bed gas drilling machine and power head reduction box thereof | |
| GB2024984A (en) | Epicyclic glaring | |
| CN113107353B (en) | Heavy-load antifriction type sealing transmission shaft assembly | |
| CN110966150A (en) | Oil slip ring of wind driven generator set | |
| JPH0325602B2 (en) | ||
| RU2285781C1 (en) | Drive shaft to connect screw gerotor hydromachine with spindle | |
| CN214577737U (en) | Novel sectional assembly type shaft tubular pump device | |
| CN214146500U (en) | Milling machine speed reducer | |
| CN112145659B (en) | Sealing structure of oil-lubricated semi-direct-drive wind driven generator rotor support bearing | |
| CN211474346U (en) | Oil slip ring of wind driven generator set | |
| CN210217659U (en) | Drilling device | |
| CN109812274B (en) | Rock-socketed drilling machine | |
| CN210217610U (en) | Drilling mechanism for engineering machinery | |
| CN208252265U (en) | A kind of hydraulic gate that rotary power output is built-in | |
| CN216894255U (en) | Double-drill-rod driving guide drill bit | |
| CN111810049A (en) | Positive displacement fixed-shaft rotary underground power motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |