CN102071935A - Cutting part of heading machine - Google Patents
Cutting part of heading machine Download PDFInfo
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- CN102071935A CN102071935A CN2009102073627A CN200910207362A CN102071935A CN 102071935 A CN102071935 A CN 102071935A CN 2009102073627 A CN2009102073627 A CN 2009102073627A CN 200910207362 A CN200910207362 A CN 200910207362A CN 102071935 A CN102071935 A CN 102071935A
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- torque axis
- tunneling machine
- machine cutting
- described torque
- cutting according
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Abstract
The invention relates to a cutting part of a heading machine, in particular to a cutting part of a heading machine, which is formed by connecting a cutting motor and a cutting reducer by a torque shaft. The cutting part has high strong impact load resisting capacity, and can be used to effectively improve the service life of the cutting motor and the cutting reducer.
Description
Technical field
The present invention relates to development machine, relate in particular to a kind of tunneling machine cutting portion.
Background technology
At present, the output shaft of tunneling machine cutting portion cutting motor is a solid type both at home and abroad, but not hollow shaft structure, the cutting motor axle connects with the cut reductor by spline housing or positive coupling, realizes power transmission.When equipment suffers powerful load impact, because the rigidity of output shaft is too big, often cause cutting motor and reductor to damage, thus the life-span of reducing development machine greatly.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of tunneling machine cutting portion structure is provided, and it can reduce the damage of impact load to reductor and cutting motor greatly, plays overload protective function.
The technical scheme that the present invention solves the problems of the technologies described above employing is: the cutting motor output shaft adopts hollow shaft structure, connects by torque axis between cutting motor and the cut reductor, and torque axis can be an elongated shape, and its length is more than 5 times of diameter; The material of torque axis can be middle low-carbon alloy steel or medium carbon steel; The local shear strength of axle can be lower than remainder shear strength, as establishing cut groove, the minimum shear strength of torque axis can be not less than the shear strength that the electric motor starting torque produces, position with low shear strength is away from reductor one side, its inside can be hollow, at hollow parts screw thread can be arranged, when impact load causes the torque axis shearing disconnected above certain value, can utilize screwed hole that torque axis is taken out from motor near reductor one side; Torque axis and cutting motor hollow shaft splined place are positioned at away from reductor one side; Supporting section is respectively established in two sections spline outsides on the torque axis, is used for torque axis centering.Near reductor one side exhaust structure can arranged, inner air is got rid of from exhaust structure during installation, is beneficial to installation.
The present invention absorbs twisting vibration by elongated torque axis, and then reduces impact load to motor and transmission system influence, eliminates the damage to reductor and cutting motor; Torque axis is disconnected at the lower regional shear of shear strength when impact load surpasses certain value, can protect motor and transmission system effectively, thereby improve supporting capacity, application life and the reliability of cutting units greatly.
Description of drawings
Below in conjunction with accompanying drawing instantiation of the present invention is described in detail, wherein:
Fig. 1 is a kind of tunneling machine cutting portion structural representation with torque axis;
Fig. 2 is torque axis structural representation in a kind of tunneling machine cutting portion with torque axis.
The specific embodiment
Tunneling machine cutting portion as shown in Figure 1 with torque axis, the cutting motor output shaft adopts hollow shaft structure, and cutting motor 1 connects with cut reductor 3 by elongated torque axis 2, and the length of torque axis is 15 times of diameter.
Torque axis 2 as shown in Figure 2 is a slender axles structure, and its material adopts 35CrMo, and annular torque groove 4 is set on it.Absorb twisting vibration by elongated torque axis, and then reduce damage the bearing in the reductor, gear, spline etc. and cutting motor; Torque axis is sheared and is broken when impact load surpasses certain value, thereby has the mechanical protection function.Shear when disconnected when torque axis and to cut off at annular torque groove 4 places, thereby circular hole 5 also disconnects, can utilize screwed hole 6 that torque axis is taken out from motor, supporting section 7 is that torque axis is carried out radial support.Inner air is got rid of from steam vent 8 during installation, is beneficial to installation.
Claims (11)
1. tunneling machine cutting portion is characterized in that the output shaft of cutting motor adopts hollow shaft structure, connects by torque axis between cutting motor and the cut reductor.
2. tunneling machine cutting according to claim 1 portion, the length that it is characterized in that described torque axis is more than 10 times of diameter.
3. tunneling machine cutting according to claim 1 portion, the material that it is characterized in that described torque axis is middle low-carbon alloy steel or medium carbon steel.
4. tunneling machine cutting according to claim 1 portion is characterized in that the shear strength of described torque axis part is lower than remainder shear strength.
5. tunneling machine cutting according to claim 4 portion is characterized in that the minimum shear strength of described torque axis is not less than the shear strength that the electric motor starting torque produces.
6. tunneling machine cutting according to claim 4 portion is characterized in that described torque axis has the position of low shear strength away from reductor one side.
7. tunneling machine cutting according to claim 4 portion is characterized in that on the described torque axis cut groove being arranged.
8. tunneling machine cutting according to claim 4 portion, the regional area that it is characterized in that having on the described torque axis low shear strength is hollow, at the hollow parts near reductor one side screw thread is arranged.
9. tunneling machine cutting according to claim 1 portion is characterized in that the hollow shaft splined place of described torque axis and cutting motor is positioned at away from reductor one side.
10. tunneling machine cutting according to claim 1 portion is characterized in that supporting section is respectively established in two sections splines outsides on the described torque axis.
11. tunneling machine cutting according to claim 1 portion is characterized in that described torque axis is having exhaust structure near reductor one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910207362.7A CN102071935B (en) | 2009-10-26 | 2009-10-26 | Cutting part of heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910207362.7A CN102071935B (en) | 2009-10-26 | 2009-10-26 | Cutting part of heading machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102071935A true CN102071935A (en) | 2011-05-25 |
| CN102071935B CN102071935B (en) | 2015-05-20 |
Family
ID=44030671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910207362.7A Expired - Fee Related CN102071935B (en) | 2009-10-26 | 2009-10-26 | Cutting part of heading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102071935B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865288A (en) * | 2012-08-31 | 2013-01-09 | 永济新时速电机电器有限责任公司 | Torque axis of cutting motor of coal mining machine |
| CN103573265A (en) * | 2012-08-06 | 2014-02-12 | 刘素华 | Method for strengthening impact device by heightening and/or widening impact guide pieces and impact device for increasing strengthened impact strength by implementing method |
| CN103953338A (en) * | 2012-11-07 | 2014-07-30 | 刘素华 | Impact head strengthening and centralizing method by using dual back recesses and impact head strengthening and centralizing device by using dual back recesses for applying the method |
| CN108457647A (en) * | 2017-02-18 | 2018-08-28 | 刘素华 | Implementing cam sleeve line shaft drives the cam sleeve line shaft of the method for hollow cam sleeve rotation to drive hollow cam sleeve impingement box |
| CN114810065A (en) * | 2022-05-07 | 2022-07-29 | 四川华蓥山广能集团嘉华机械有限责任公司 | Permanent magnet direct-drive coal mining machine rocker arm suitable for steep dip angle coal seam and use method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT342535B (en) * | 1975-09-02 | 1978-04-10 | Voest Ag | SCRAP MACHINE |
| CN2442937Y (en) * | 2000-09-15 | 2001-08-15 | 天津市科达电器技术设备成套总公司 | Medium-position type transmission for electric bicycle |
| CN2594462Y (en) * | 2002-10-31 | 2003-12-24 | 峰峰矿务局机械总厂 | Drum coal-mining machines for low seam |
| CN2831592Y (en) * | 2005-10-10 | 2006-10-25 | 綦学尧 | Harmonic geared down motro with double outlet shafts |
| CN101144382A (en) * | 2006-09-11 | 2008-03-19 | 天地上海采掘装备科技有限公司 | Longitudinally arranged rocking arm for cutting motor |
| CN201013375Y (en) * | 2007-03-29 | 2008-01-30 | 颜勇军 | High-durability small-sized tunnelling machine cutter head hydraulically driving device |
| CN201835829U (en) * | 2009-10-26 | 2011-05-18 | 乔伊·姆·特拉华公司 | Cutting part of road header |
-
2009
- 2009-10-26 CN CN200910207362.7A patent/CN102071935B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573265A (en) * | 2012-08-06 | 2014-02-12 | 刘素华 | Method for strengthening impact device by heightening and/or widening impact guide pieces and impact device for increasing strengthened impact strength by implementing method |
| CN103573265B (en) * | 2012-08-06 | 2018-07-20 | 刘素华 | Increase and/or widen the method for impact guide part righting percussion mechanism and implements the increasing righting impact dynamics percussion mechanism of this method |
| CN102865288A (en) * | 2012-08-31 | 2013-01-09 | 永济新时速电机电器有限责任公司 | Torque axis of cutting motor of coal mining machine |
| CN103953338A (en) * | 2012-11-07 | 2014-07-30 | 刘素华 | Impact head strengthening and centralizing method by using dual back recesses and impact head strengthening and centralizing device by using dual back recesses for applying the method |
| CN103953338B (en) * | 2012-11-07 | 2020-07-10 | 刘素华 | Method for strengthening impact head by using opposite-back groove and device for implementing method |
| CN108457647A (en) * | 2017-02-18 | 2018-08-28 | 刘素华 | Implementing cam sleeve line shaft drives the cam sleeve line shaft of the method for hollow cam sleeve rotation to drive hollow cam sleeve impingement box |
| CN108457647B (en) * | 2017-02-18 | 2023-12-05 | 刘素华 | Hollow cam sleeve impact box |
| CN114810065A (en) * | 2022-05-07 | 2022-07-29 | 四川华蓥山广能集团嘉华机械有限责任公司 | Permanent magnet direct-drive coal mining machine rocker arm suitable for steep dip angle coal seam and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102071935B (en) | 2015-05-20 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20151026 |
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| EXPY | Termination of patent right or utility model |