CN201835829U - Cutting part of road header - Google Patents
Cutting part of road header Download PDFInfo
- Publication number
- CN201835829U CN201835829U CN2009202677730U CN200920267773U CN201835829U CN 201835829 U CN201835829 U CN 201835829U CN 2009202677730 U CN2009202677730 U CN 2009202677730U CN 200920267773 U CN200920267773 U CN 200920267773U CN 201835829 U CN201835829 U CN 201835829U
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- CN
- China
- Prior art keywords
- torque axis
- tunneling machine
- machine cutting
- described torque
- cutting according
- 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.)
- Expired - Fee Related
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Transmission Devices (AREA)
Abstract
The utility mode relates to a cutting part of a road header, which is characterized in that a cutting motor and a cutting speed reducer are connected through a torque shaft. The cutting part has stronger capacity of resisting external strong impact load, and accordingly service lives of the cutting motor and the cutting speed reducer can be prolonged effectively by the aid of the cutting part.
Description
Technical field
The utility model relates to development machine, relates 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.
The utility model content
The technical problems to be solved in the utility model 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 in the invention for solving the above technical problem 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.
Preferably, the length of described torque axis is more than 10 times of diameter.
The utility model 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 utility model 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 |
|---|---|---|---|
| CN2009202677730U CN201835829U (en) | 2009-10-26 | 2009-10-26 | Cutting part of road header |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202677730U CN201835829U (en) | 2009-10-26 | 2009-10-26 | Cutting part of road header |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201835829U true CN201835829U (en) | 2011-05-18 |
Family
ID=44005935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202677730U Expired - Fee Related CN201835829U (en) | 2009-10-26 | 2009-10-26 | Cutting part of road header |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201835829U (en) |
Cited By (3)
| 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 |
| CN102927115A (en) * | 2012-11-05 | 2013-02-13 | 无锡市亚青机械厂 | Motor output shaft structure for shield machine |
| CN102071935B (en) * | 2009-10-26 | 2015-05-20 | 乔伊·姆·特拉华公司 | Cutting part of heading machine |
-
2009
- 2009-10-26 CN CN2009202677730U patent/CN201835829U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071935B (en) * | 2009-10-26 | 2015-05-20 | 乔伊·姆·特拉华公司 | Cutting part of heading machine |
| 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 |
| CN102927115A (en) * | 2012-11-05 | 2013-02-13 | 无锡市亚青机械厂 | Motor output shaft structure for shield machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20161026 |