CN109854238A - A kind of hard rock cutting mechanism based on Nutation Principle - Google Patents
A kind of hard rock cutting mechanism based on Nutation Principle Download PDFInfo
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- CN109854238A CN109854238A CN201910001518.XA CN201910001518A CN109854238A CN 109854238 A CN109854238 A CN 109854238A CN 201910001518 A CN201910001518 A CN 201910001518A CN 109854238 A CN109854238 A CN 109854238A
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- bevel gear
- cutterhead
- hard rock
- cutting
- mechanism based
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Abstract
A kind of hard rock cutting mechanism based on Nutation Principle, including rack, cutterhead mounting disc and cutting cutterhead, input shaft, internal bevel gear and outer bevel gear, cutting cutterhead are fixedly connected on the front end of cutterhead mounting disc, and internal bevel gear is connected with rack；Outer bevel gear engages with internal bevel gear, and the axis of outer bevel gear and the axis of internal bevel gear have an angle to be known as nutational angle W；Input shaft is connected with outer bevel gear.The configuration of the present invention is simple, applied widely, consuming little energy can greatly improve the efficiency of hard rock driving.
Description
Technical field
The present invention relates to a kind of hard rock cutting mechanism based on Nutation Principle, belongs to digging equipment field.
Background technique
With the development of the social economy, China wants the infrastructure constructions such as highway, railway, Tunnel Engineering, hydroelectric project
Continuous enhancing is asked, these engineerings are faced with the hard rock driving to tunnel or tunnel.Tensile strength, the compression strength of rock are rocks
Important mechanical performance index, refer to the ability that rock sample resists tensile stress or compression under the effect of external force, rock
Tensile strength be compression strength 1/10-1/30.
Currently, China's stone head road heading machinery has partial-size tunneling machine and full face tunnel boring machine.Full face tunnel boring machine
It, can be by the catalase of entire section by biopsy system；Partial-size tunneling machine successively declines by the swing of cutterhead
The coal petrography of institute's excavated section, thus the shape of section needed for tunneling out.Hard rock is tunneled, full face tunnel boring machine or portion are used
Section boring machine is divided all to there is a problem that tool wear is serious, a rate of advance is low.
Summary of the invention
In order to overcome the above-mentioned deficiency of the prior art, the present invention provides a kind of hard rock cutting mechanism based on Nutation Principle,
The hard rock cutting mechanism is applied widely, consuming little energy, improves the efficiency of hard rock driving.
The technical solution used to solve the technical problems of the present invention is that: including rack, cutterhead mounting disc, cutting cutterhead,
Input shaft, internal bevel gear and outer bevel gear, cutting cutterhead are fixedly connected on the front end of cutterhead mounting disc, input shaft and outer cone tooth
Wheel is connected, and internal bevel gear is connected with rack；Outer bevel gear engages with internal bevel gear, the axis of outer bevel gear and internal bevel gear
Axis is 0.5-5 degree there are nutational angle W, W.
Compared with prior art, a kind of hard rock cutting mechanism based on Nutation Principle of the invention, is completed using nutating gear
To the deceleration increment of input shaft, rock is cut come root by the rotation and swing of cutting cutterhead, improves the efficiency of cutting hard rock.It should
Mechanism structure is simple and reliable, and reduction ratio is big, eliminates speed reducer device, saves cost.The present invention can also quick cutting f6
Above hard rock solves the problems, such as that other current cutting mechanisms are unable to high efficiency cutting hard rock.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Fig. 2 is application schematic diagram of the embodiment of the present invention in cutting rock, only partially illustrates cutterhead mounting disc and cuts
The structure of disc cutterbar and rock.
In figure, 1, input shaft, 2, internal bevel gear, 3, outer bevel gear, 4, cutterhead mounting disc, 5, cutting cutterhead, 6, crackle
Area, 7, crack propagation area.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, belongs to protection scope of the present invention.
Figures 1 and 2 show that the structural schematic diagram of a preferred embodiment of the invention, one of figure are former based on nutating
The hard rock cutting mechanism of reason, including input shaft 1, internal bevel gear 2, outer bevel gear 3, cutterhead mounting disc 4 and cutting cutterhead 5；Its
In internal bevel gear 2 be connected with rack；The axis of the outer bevel gear 3 and the axis of internal bevel gear 2 have an angle to be known as chapter
Dynamic angle W, nutational angle W is adjustable, and nutational angle W is generally 0.5-5 degree, and optimal nutating angular region is 0.5-2 degree, nutational angle W
The vibration frequency and Oscillation Amplitude of influence system；The input shaft 1 is connected with outer bevel gear 3；The cutterhead mounting disc 4
It links together with outer bevel gear 3；Cutting cutterhead 5 can be fixed in cutterhead mounting disc 4 by conventional connection type, preferably
The removablies such as bolt are connected together with cutterhead mounting disc 4, easy to disassemble, replacement cutting cutterhead 5；The cutting cutterhead
5 are made of wear-resistant material, generally use tungsten carbide.
Working principle: since input shaft 1 is the bending axis that bending angle is W, input shaft 1 is formed around the rotation of dead axle
Nutational angle is the nutation movement of W, and passes motion to the outer bevel gear 3 being connected with input shaft 1, it is made to do nutation movement,
Form the pendulum motion of cutting cutterhead 5；Outer bevel gear 3 engages with internal bevel gear 2, because internal bevel gear 2 is fixed in rack,
Outer bevel gear 3 makees the rotation of low speed, drives the rotation of cutting cutterhead 5.The revolution at a high speed of input shaft 1 is realized to cutting cutterhead 5
Low speed rotary motion.In cutting rock, the cutterhead face of cutting cutterhead 5 and the surface of rock are in parastate, cutting knife
The shock of disk 5 leads to the appearance in rock crackle forming area 6.Cutting cutterhead 5 enters the cracked zone 6 of rock, due to the swing of cutting cutterhead 5
Tensile impact cracked zone fragment, 6 front end of cracked zone formed crack propagation area 7, crack propagation area 7 be it is adjacent with cracked zone 6, under
One stage developed into cracked zone 6 again, finally resulted in the peeling of fragment, and the peeling in the rock crackle forming area 6 first generated causes adjacent
New cracked zone 6 is developed into crack propagation area 7, and moving in circles constantly has appearance and the fragment of cracked zone 6 and crack propagation area 7
Peeling, complete to the cutting of hard rock.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit of the invention, any simple modification and same variation are made to above embodiments, each fall within guarantor of the invention
Within the scope of shield.
Claims (4)
1. a kind of hard rock cutting mechanism based on Nutation Principle, including rack, cutterhead mounting disc (4) and cutting cutterhead (5) are cut
Disc cutterbar (5) is fixedly connected on the front end of cutterhead mounting disc (4), it is characterized in that: further including input shaft (1), internal bevel gear (2)
With outer bevel gear (3), input shaft (1) is connected with outer bevel gear (3), and internal bevel gear (2) is connected with rack；Outer bevel gear (3) with
The engagement of internal bevel gear (2), the axis of outer bevel gear (3) and the axis of internal bevel gear (2) are 0.5-5 degree there are nutational angle W, W.
2. a kind of hard rock cutting mechanism based on Nutation Principle according to claim 1, it is characterized in that: the nutational angle
Range takes 0.5-2 degree.
3. a kind of hard rock cutting mechanism based on Nutation Principle according to claim 1 or 2, it is characterized in that: the cutting
Cutterhead (5) is connected together by bolt with cutterhead mounting disc (4).
4. a kind of hard rock cutting mechanism based on Nutation Principle according to claim 1 or 2, it is characterized in that: the cutting
The material of cutterhead (5) is tungsten carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001518.XA CN109854238A (en) | 2019-01-02 | 2019-01-02 | A kind of hard rock cutting mechanism based on Nutation Principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001518.XA CN109854238A (en) | 2019-01-02 | 2019-01-02 | A kind of hard rock cutting mechanism based on Nutation Principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109854238A true CN109854238A (en) | 2019-06-07 |
Family
ID=66893693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910001518.XA Pending CN109854238A (en) | 2019-01-02 | 2019-01-02 | A kind of hard rock cutting mechanism based on Nutation Principle |
Country Status (1)
| Country | Link |
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| CN (1) | CN109854238A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4301716A (en) * | 1978-07-01 | 1981-11-24 | Sankyo Electric Company Limited | Refrigerant compressor units |
| CN101289936A (en) * | 2007-08-08 | 2008-10-22 | 三一重型装备有限公司 | Hard rock tunneling machine |
| CN106126844A (en) * | 2016-06-30 | 2016-11-16 | 大连交通大学 | A kind of method for designing of interior tangent plane gear |
| CN207795249U (en) * | 2017-11-02 | 2018-08-31 | 黑龙江科技大学 | A kind of coal petrography cutting operating mechanism |
-
2019
- 2019-01-02 CN CN201910001518.XA patent/CN109854238A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4301716A (en) * | 1978-07-01 | 1981-11-24 | Sankyo Electric Company Limited | Refrigerant compressor units |
| CN101289936A (en) * | 2007-08-08 | 2008-10-22 | 三一重型装备有限公司 | Hard rock tunneling machine |
| CN106126844A (en) * | 2016-06-30 | 2016-11-16 | 大连交通大学 | A kind of method for designing of interior tangent plane gear |
| CN207795249U (en) * | 2017-11-02 | 2018-08-31 | 黑龙江科技大学 | A kind of coal petrography cutting operating mechanism |
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Application publication date: 20190607 |