CN212744004U - Hard rock entry driving machine cutting units of many oscillating cutterheads - Google Patents
Hard rock entry driving machine cutting units of many oscillating cutterheads Download PDFInfo
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- CN212744004U CN212744004U CN202021205513.3U CN202021205513U CN212744004U CN 212744004 U CN212744004 U CN 212744004U CN 202021205513 U CN202021205513 U CN 202021205513U CN 212744004 U CN212744004 U CN 212744004U
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- cutting
- cutting arm
- hard rock
- blade disc
- cutterheads
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- 238000005520 cutting process Methods 0.000 title claims abstract description 100
- 239000011435 rock Substances 0.000 title claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000005641 tunneling Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000008312 Tooth Loss Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a hard rock entry driving machine cutting units of many vibration blade discs, including rotary mechanism, heightening hydro-cylinder, cutting arm and vibration blade disc mechanism, cutting arm respectively with rotary mechanism, heightening hydro-cylinder, vibration blade disc mechanism links to each other, vibration blade disc mechanism includes sun gear, star gear, planetary gear axle, eccentric sleeve, blade disc and nut, sun gear meshes with planetary gear mutually, the blade disc passes through the nut, eccentric sleeve links to each other with planetary gear axle, the central axis of blade disc overlaps with eccentric sleeve's the central axis, it is parallel with planetary gear axle's the central axis. The utility model utilizes the oscillating impact motion of the cutter head to break the rock, fully utilizes the characteristic of low tensile strength of the rock to reduce the cutting load, and can effectively improve the rock breaking efficiency of the hard rock; the problem of uneven abrasion of the cutter head can be effectively solved by the passive rotation of the cutter head under the action of friction force, the service life of the cutter head is prolonged, and the loss of cutters is reduced.
Description
Technical Field
The utility model belongs to hard rock cutting device specifically is a hard rock entry driving machine cutting units of many vibration blade discs.
Background
For a long time, the tunneling speed of a roadway in mining is always an important factor for limiting the improvement of production efficiency, the problem is more prominent in the hard rock tunneling working condition, and the problems are mainly reflected in high surrounding rock strength, large cutting load, low cutting efficiency, serious cutting tooth loss and the like. The cutting part of the heading machine is a part for directly cutting rocks, and the cutting efficiency and reliability of the cutting part directly determine the performance of the heading machine.
Three improvement ways are mainly provided for solving the problems faced by the cutting of the hard rock, namely, the strength and the wear resistance of the cutting tooth are improved; secondly, large-scale heading machine equipment is designed, and the installed power is improved; and thirdly, the cutting load is reduced. In the aspect of improving the strength and the wear resistance of the cutting pick, the hard alloy is mostly embedded at the cutting tip, but the abrasion of the tooth handle in the cutting process of hard rock is fast, so that the hard alloy is easy to fall off and lose efficacy. In addition, the size of the designed tunneling machine is limited due to the space of the roadway, and the installed power is difficult to improve. Therefore, the cutting part of the heading machine which is more efficient and stable needs to be developed from the viewpoints of reducing cutting load and improving cutting efficiency.
SUMMERY OF THE UTILITY MODEL
The purpose of the invention is as follows: in order to overcome the deficiencies in the prior art, the utility model aims at providing a hard rock entry driving machine cutting units of high-efficient, low-loss, stable many oscillation cutterheads.
The technical scheme is as follows: hard rock entry driving machine cutting units of many vibration blade discs, including rotary mechanism, heightening hydro-cylinder, cutting arm and vibration blade disc mechanism, cutting arm respectively with rotary mechanism, heightening hydro-cylinder, vibration blade disc mechanism links to each other, vibration blade disc mechanism includes sun gear, star gear, planetary gear axle, eccentric sleeve, blade disc and nut, sun gear meshes with star gear mutually, the distribution moment of torsion, the blade disc passes through the nut, eccentric sleeve links to each other with planetary gear axle, the central axis of blade disc overlaps with eccentric sleeve's the central axis, it is parallel with planetary gear axle's the central axis.
Preferably, the number of the cutter heads is 3-6. The planetary gear shaft penetrates out of the gear end cover and is used for fixing the cutter head and outputting torque. The eccentric shaft sleeve is arranged at the tail end of the planetary gear shaft and is used for enabling the cutter disc to rotate eccentrically and outputting oscillating impact motion. The cutter head is arranged on the eccentric shaft sleeve and is fixed by a nut.
The rotating mechanism comprises a first steering oil cylinder, a second steering oil cylinder and a steering wheel, the steering wheel is respectively connected with the first steering oil cylinder and the second steering oil cylinder, and the steering wheel is rotated by controlling the extension and retraction of the first steering oil cylinder and the second steering oil cylinder on two sides. The steering wheel is connected with the machine body. The cutting arm comprises a first cutting arm, a second cutting arm and a third cutting arm, the second cutting arm is respectively connected with the first cutting arm and the third cutting arm, and the first cutting arm is connected with the steering wheel. And a gear end cover for sealing the output shaft gear is arranged between the third cutting arm and the oscillating cutter head mechanism. And the height-adjusting oil cylinder is respectively connected with the cutting arm III and the steering wheel. The height-adjusting oil cylinders are two, one end of each height-adjusting oil cylinder is fixed on the steering wheel, the piston end is fixed on the cutting arm, and the extension of the height-adjusting oil cylinders can control the inclination angle of the cutting arm so as to control the height of the cutting head.
The central gear is connected with a speed reducer through a central gear shaft, and the speed reducer is arranged in the third cutting arm. The speed reducer is connected with the cutting motor, and the cutting motor is arranged in the cutting arm II.
The working principle is as follows: the cutting part of the hard rock heading machine with the multi-oscillation cutterhead is controlled to rotate by the extension and retraction of the first steering oil cylinder and the second steering oil cylinder on the two sides of the steering wheel, and the transverse cutting range is adjusted. The inclination angle of the cutting arm I is controlled by adjusting the extension of the height-adjusting oil cylinder, and the longitudinal cutting range, namely the height of the cutting head, is adjusted. The cutting motor and the speed reducer are respectively arranged in the cutting arm II and the cutting arm III, the torque is transmitted to a central gear shaft of the central gear from the speed reducer, the central gear drives the three star gears to rotate through meshing, and the torque is output through the star gear shaft, so that multi-cutter-head cutting is realized. The cutter head is arranged on the planetary gear shaft through an eccentric shaft sleeve and rotates along with the planetary gear shaft to generate eccentric rotation, so that rock can be impacted in an oscillating mode, and efficient rock breaking is achieved.
Has the advantages that: compared with the prior art, the utility model, have following characteristics: rock is broken by utilizing the oscillating impact motion of the cutter head, the cutting load is reduced by fully utilizing the characteristic of low tensile strength of the rock, and the rock breaking efficiency of hard rock can be effectively improved; the problem of uneven abrasion of the cutter head can be effectively solved by the passive rotation of the cutter head under the action of friction force, the service life of the cutter head is prolonged, and the loss of cutters is reduced.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a right side view of the present invention;
fig. 3 is a schematic structural diagram of the oscillating cutter head mechanism 4 of the present invention;
fig. 4 is a cross-sectional view of the plane a-a of the present invention.
Detailed Description
The directions of the drawings in the specification are up, down, left, right, front and back.
As shown in fig. 1-2, a rotating mechanism 1 of a cutting part of a multi-oscillation cutterhead hard rock heading machine is composed of a steering wheel 103, a first steering cylinder 101 and a second steering cylinder 102, wherein the steering wheel 103 is fixed on a steering shaft of the heading machine body 5, and two sides of the steering wheel 103 are respectively connected with pistons of the first steering cylinder 101 and the second steering cylinder 102. The cylinder sleeves of the first steering cylinder 101 and the second steering cylinder 102 are fixed on the heading machine body 5, the piston end is connected with the steering wheel 103, and the steering wheel 103 is rotated by controlling the extension and retraction of the first steering cylinder 101 and the second steering cylinder 102 on the two sides. The two heightening oil cylinders 2 are fixed on the steering wheel 103 at one end, the piston end is fixed on the first cutting arm 301, and the stretching of the heightening oil cylinders 2 can control the inclination angle of the first cutting arm 301, thereby controlling the height of the cutting head. The cutting arm 3 comprises three sections of cutting arms, namely a first cutting arm 301, a second cutting arm 302 and a third cutting arm 303. The first cutting arm 301 is hinged with the steering wheel 103, and the other end of the first cutting arm is connected with the second cutting arm 302 through a bolt. A cutting motor is arranged inside the second cutting arm 302, and two ends of the cutting motor are respectively connected with the first cutting arm 301 and the third cutting arm 303 through bolts. A speed reducer is arranged inside the third cutting arm 303, and two ends of the speed reducer are respectively connected with the second cutting arm 302 and the gear end cover 6 through bolts. The gear end cover 6 is used for sealing the output shaft gear and is arranged on the third cutting arm 303.
As shown in fig. 3 to 4, a gear shaft of a central gear 401 of the oscillating cutter mechanism 4 is connected to an output shaft of a reducer, and is respectively meshed with three star gears 402 to distribute torque. The planet gear shaft 403 of the star gear 402 passes through the gear end cover 6 to fix the cutter disc 405 and output torque. An eccentric bushing 404 is mounted on the end of the planet shaft 403 for producing eccentric rotation of the cutter disc 405 to output oscillatory percussive motions. The impeller 405 is mounted on the eccentric sleeve 404 and is secured by a nut 406. The number of the planetary gears 402 can be replaced by four, five or six from three.
Claims (9)
1. The utility model provides a hard rock entry driving machine cutting units of many oscillating cutterheads which characterized in that: including rotary mechanism (1), heightening hydro-cylinder (2), cutting arm (3) and vibration blade disc mechanism (4), cutting arm (3) links to each other with rotary mechanism (1), heightening hydro-cylinder (2), vibration blade disc mechanism (4) respectively, vibration blade disc mechanism (4) include sun gear (401), planetary gear (402), planetary gear axle (403), eccentric sleeve (404), blade disc (405) and nut (406), sun gear (401) mesh with planetary gear (402), blade disc (405) are passed through nut (406), eccentric sleeve (404) and are linked to each other with planetary gear axle (403), the central axis of blade disc (405) overlaps with the central axis of eccentric sleeve (404), and is parallel with the central axis of planetary gear axle (403).
2. The cutting part of the hard rock heading machine with the multiple oscillating cutterheads, according to claim 1, wherein: the number of the cutter heads (405) is 3-6.
3. The cutting part of the hard rock heading machine with the multiple oscillating cutterheads, according to claim 1, wherein: the rotating mechanism (1) comprises a first steering oil cylinder (101), a second steering oil cylinder (102) and a steering wheel (103), wherein the steering wheel (103) is connected with the first steering oil cylinder (101) and the second steering oil cylinder (102) respectively.
4. The cutting part of the hard rock heading machine with the multiple oscillating cutterheads, according to claim 3, wherein: the steering wheel (103) is connected with the machine body (5).
5. The cutting part of the hard rock heading machine with the multiple oscillating cutterheads, according to claim 3, wherein: the cutting arm (3) comprises a first cutting arm (301), a second cutting arm (302) and a third cutting arm (303), the second cutting arm (302) is respectively connected with the first cutting arm (301) and the third cutting arm (303), and the first cutting arm (301) is connected with the steering wheel (103).
6. The cutting part of the hard rock heading machine with the multiple oscillating cutterheads, according to claim 5, wherein: and a gear end cover (6) is arranged between the third cutting arm (303) and the oscillating cutter head mechanism (4).
7. The cutting part of the hard rock heading machine with the multiple oscillating cutterheads, according to claim 5, wherein: and the height-adjusting oil cylinder (2) is respectively connected with the cutting arm III (303) and the steering wheel (103).
8. The cutting part of the hard rock heading machine with the multiple oscillating cutterheads, according to claim 1, wherein: the central gear (401) is connected with a speed reducer through a central gear shaft, and the speed reducer is arranged in the cutting arm III (303).
9. The cutting part of the hard rock heading machine with the multiple oscillating cutterheads, according to claim 8, wherein: the speed reducer is connected with a cutting motor, and the cutting motor is arranged in the second cutting arm (302).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021205513.3U CN212744004U (en) | 2020-06-24 | 2020-06-24 | Hard rock entry driving machine cutting units of many oscillating cutterheads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021205513.3U CN212744004U (en) | 2020-06-24 | 2020-06-24 | Hard rock entry driving machine cutting units of many oscillating cutterheads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212744004U true CN212744004U (en) | 2021-03-19 |
Family
ID=75011051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021205513.3U Active CN212744004U (en) | 2020-06-24 | 2020-06-24 | Hard rock entry driving machine cutting units of many oscillating cutterheads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212744004U (en) |
-
2020
- 2020-06-24 CN CN202021205513.3U patent/CN212744004U/en active Active
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