CN113565502A - Efficient internal spray type transverse shaft type boom-type roadheader cutting head - Google Patents
Efficient internal spray type transverse shaft type boom-type roadheader cutting head Download PDFInfo
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- CN113565502A CN113565502A CN202110926183.XA CN202110926183A CN113565502A CN 113565502 A CN113565502 A CN 113565502A CN 202110926183 A CN202110926183 A CN 202110926183A CN 113565502 A CN113565502 A CN 113565502A
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- transverse shaft
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- 238000005520 cutting process Methods 0.000 title claims abstract description 204
- 239000007921 spray Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 29
- 238000009826 distribution Methods 0.000 claims abstract description 21
- 230000036346 tooth eruption Effects 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000010008 shearing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000005641 tunneling Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract 1
- 230000004313 glare Effects 0.000 description 7
- 239000003245 coal Substances 0.000 description 6
- 239000011435 rock Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
- E21C35/23—Distribution of spraying-fluids in rotating cutter-heads
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/10—Rods; Drums
-
- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Nozzles (AREA)
Abstract
The invention belongs to the technical field of cutting mechanisms of transverse shaft type tunneling machines, and particularly relates to a high-efficiency internal spray type transverse shaft type cantilever type tunneling machine cutting head; the cutting head is used for being installed on the transverse shaft type cutting speed reducer and is communicated with a built-in water path of the transverse shaft type cutting speed reducer, the cutting head comprises a cutting sleeve and cutting teeth, a nozzle is arranged on the peripheral wall of the cutting sleeve, a built-in water tank is arranged on the peripheral wall of the cutting sleeve, a water distribution pipeline is fixed in the built-in water tank, and a water outlet on the water distribution pipeline is connected with the nozzle; two circumferential grooves are formed in the inner peripheral wall of the cutting sleeve and are respectively positioned in front of and behind the water drainage hole, a Glae ring is embedded in each groove, and the two Glae rings seal annular gaps in front of and behind the water drainage hole; the water inlet on the water distribution pipeline penetrates through the wall thickness of the cutting sleeve and penetrates out of the space between the two GREEN rings. The invention enriches the types and forms of the internal spray type transverse shaft type cutting head, optimizes the internal spray path and effect, and improves the high efficiency and stability of cutting operation.
Description
Technical Field
The invention belongs to the technical field of cutting mechanisms of transverse shaft type tunneling machines, and particularly relates to an efficient internal spray type transverse shaft type cantilever type tunneling machine cutting head.
Background
The boom-type roadheader can be divided into a longitudinal shaft type cutting head and a transverse shaft type cutting head according to the working form of the cutting head, the longitudinal shaft type cutting head is mature as a using part of the traditional boom-type roadheader, but the transverse shaft type cutting head has higher cutting efficiency than the longitudinal shaft type cutting head, and the main differences and difficulties comprise the following contents: 1. the inner spray plays a key role in reducing high temperature and dust generated during cutting operation of the cutting pick, and the inner spray water channel of the longitudinal axis type cutting head usually enters from the outside of a reducer shell, reaches the water cavity of the cutting head through the inner cavity of the cutting spindle and is sprayed out through the linear nozzle of the cutting head. The horizontal shaft type cutting head is not connected with the cutting spindle any more but is directly connected with the horizontal shaft type reducer, and a closed water cavity which is not as large as the vertical shaft type cutting head is formed by combining the appearance difference of the horizontal shaft type cutting head, so that the spraying mode in the horizontal shaft type cutting head is changed. 2. In order to realize better cutting efficiency and roadway supporting conditions, the appearance of the transverse shaft type cutting head is larger than that of the longitudinal shaft type cutting head, the received cutting torque is larger, and the corresponding cutting head body and the cutting tooth holder are different. Therefore, there is a need to provide an efficient internal spray transverse-axis roadheader cutting head to address the above problems.
Disclosure of Invention
The invention aims to provide an efficient internal spray type transverse shaft type boom-type roadheader cutting head, which can effectively improve cutting efficiency and prolong the service life.
In order to achieve the purpose, the invention provides an efficient internal spraying type transverse shaft type cantilever type roadheader cutting head; the cutting head is used for being mounted on the transverse shaft type cutting speed reducer and is communicated with a built-in water path of the transverse shaft type cutting speed reducer, the cutting head comprises a cutting sleeve and cutting teeth, and the cutting teeth are arranged around the peripheral wall of the cutting sleeve in a spiral line shape; nozzles are inserted between the cutting teeth on the peripheral wall of the cutting sleeve and divided into a plurality of groups, a plurality of built-in water tanks are arranged on the peripheral wall of the cutting sleeve, each built-in water tank is linearly connected with a plurality of nozzles in a single group, water distribution pipelines are fixed in the built-in water tanks, and water outlets on the water distribution pipelines are correspondingly connected with the nozzles one by one; the inner peripheral wall of the cutting sleeve is provided with two circumferential grooves which are respectively positioned in front of and behind a water drainage hole of the transverse shaft type cutting speed reducer, a Glare ring is embedded in each groove, the inner ring of each Glare ring is connected with the shell of the transverse shaft type cutting speed reducer in a sealing mode, and the two Glare rings seal annular gaps in front of and behind the water drainage hole; the water inlet on the water distribution pipeline penetrates through the wall thickness of the cutting sleeve and penetrates out of the space between the two GREEN rings.
Furthermore, the cutting teeth are fixed on the surface of the cutting sleeve in an arrangement mode of 4 spiral lines and one line of one tooth, the single group of nozzles are arranged in a row along the length direction of the cutting sleeve, the nozzle row inclines along the rotation direction of the cutting teeth, and the nozzle row is arranged around the cutting sleeve.
Furthermore, the cutting sleeve comprises a front cutting sleeve and a rear cutting sleeve which are sequentially connected along the axial direction, and the rear cutting sleeve comprises two conical cylinders with large ends connected; the front cutting sleeve is arc-shaped and is smoothly connected with the small end of the head of the rear cutting sleeve; the cutting sleeve is a flat head.
Furthermore, the front cutting sleeve and the rear cutting sleeve are connected in a welding mode, and anti-shearing pins are radially inserted into welding seams.
Furthermore, the cutting teeth comprise a tooth holder, a check ring and a pickaxe-shaped cutting tooth, the bottom of the tooth holder is welded on the surface of the cutting sleeve by adopting a J-shaped groove, and the pickaxe-shaped cutting tooth is arranged on the tooth holder through the check ring; the toothholder adopts 21CrNiMo6 material forging.
Further, the nozzle comprises a nozzle seat and a linear nozzle, the nozzle seat is welded on the surface of the cutting sleeve, and the linear nozzle is installed in the nozzle seat and is connected with the water outlet of the water distribution pipeline.
Furthermore, the cutting head also comprises a reinforcing rib which is welded on the front side of the nozzle seat along the rotating direction of the cutting head.
Furthermore, a circle of wear-resisting plates are uniformly welded at the small end of the root of the rear cutting sleeve.
Further, the cutting sleeve is fastened on an output shaft of the transverse shaft type speed reducer through an octagonal structure, an end cover and screws.
Compared with the prior art, the invention has the advantages that:
1. the invention patent with the patent number of CN202010639008.8 discloses an internal spray type horizontal shaft type heading machine cutting mechanism, which is the closest prior art of the invention and is also a representative structure of the existing internal spray type horizontal shaft type heading machine cutting mechanism. Compared with the transverse shaft cutting head described in CN202010639008.8, the invention has the following improvements:
firstly, the invention cancels a water distribution disk at the outermost side of the transverse shaft type cutting head, an inner spray water channel directly enters a sealed space formed by two Glare rings at the inner side of the cutting sleeve from a water outlet of a shell of the transverse shaft type cutting reducer, and flows to a linear nozzle in a nozzle seat through a water distribution pipeline in a built-in water tank on the cutting sleeve to be sprayed in a mist shape, the built-in water tank path of the cutting sleeve is reduced, more cutting teeth can be covered, and particularly reinforcing ribs are welded beside the nozzle seat, so that the stability of the nozzle seat is improved. And secondly, the cutting head is connected with the transverse shaft type cutting speed reducer through an octagonal structure and is fastened with the transverse shaft type cutting speed reducer through the end cover by using screws, so that the convenience of disassembling the cutting head is greatly improved. And thirdly, the outline of the cutting sleeve is changed, the cutting sleeve is composed of an inverted cone and a large-radius arc, the cutting sleeve is composed of a small-angle inverted cone, a small-angle forward cone and a small-radius arc, the cutting torque can be increased, and the corner coal rocks at the bottoms of two sides of the roadway can be reduced to the maximum extent on the premise of ensuring the cutting bottom plate to be flat, so that good construction conditions are provided for the supporting process (the supporting range of the coal machine equipment at the bottom plate is effectively enlarged).
2. The arrangement of the toothholders on the surface of the cutting sleeve adopts 4 spiral line designs according to certain constraint conditions, the cutting efficiency is optimized, and meanwhile, the smoothness of timely discharging coal rock fragments is improved, so that a guide plate required by a longitudinal axis cutting head is eliminated. Meanwhile, the toothholder is forged by replacing a common 42CrMo material with a 21CrNiMo6 material, so that the toothholder has better impact resistance and wear resistance, J-shaped grooves are formed at the bottom of the toothholder, the welding strength is increased, the open welding rate of the rear end of the toothholder in the cutting process is reduced, and the effective service life of the toothholder is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Figure 3 is a schematic view of the structure of the cutting head.
Fig. 4 is a cross-sectional view taken at a-a in fig. 3.
Fig. 5 is a partially enlarged schematic view of a portion B in fig. 4.
Figure 6 is a schematic view of the position of the nozzles on the cutting sleeve.
Fig. 7 is a cross-sectional view taken at K-K in fig. 6.
Fig. 8 is a schematic structural diagram of a water distribution pipeline.
Figure 9 is a half sectional view of the cutting sleeve.
Fig. 10 is a cross-sectional view taken at P-P in fig. 9.
Fig. 11 is a schematic structural view of a tooth holder.
Fig. 12 is a cross-sectional view taken at a-a in fig. 11.
In the figure: 1-a cutting head; 2-horizontal shaft type cutting speed reducer; 3-a pickaxe-shaped cutting pick; 4-a retainer ring; 5-Glay circle; 5.1-grooves; 6-end cover; 7-a reducer housing; 8-a screw; 9-cutting the sleeve; 10-a toothholder; 11-a wear plate; 12-a nozzle holder; 13-reinforcing ribs; 14-water distribution pipeline; 15-a linear nozzle; 16-a front cutting sleeve; 17-post cutting the sleeve; 18-anti-shear pins; 19-a built-in water tank; 20-drainage holes.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
As shown in fig. 1; a high-efficiency internal spray type horizontal shaft type cantilever type heading machine cutting head 1 is used for being installed on a horizontal shaft type cutting speed reducer 2 and communicated with a built-in water path of the horizontal shaft type cutting speed reducer 2. The horizontal shaft type cutting speed reducer 2 is arranged in the speed reducer shell 7, and the cutting heads 1 are symmetrically arranged on two sides of the horizontal shaft type cutting speed reducer 2. The cutting head 1 comprises a cutting sleeve 9 and cutting teeth, and the cutting teeth are arranged around the peripheral wall of the cutting sleeve 9 in a spiral line shape. The nozzles are inserted between the cutting teeth on the peripheral wall of the cutting sleeve 9 and divided into a plurality of groups, a plurality of built-in water tanks 19 are arranged on the peripheral wall of the cutting sleeve, each built-in water tank 19 is linearly connected with a plurality of nozzles in a single group, water distribution pipelines 14 are fixed in the built-in water tanks 19, and the nozzles are correspondingly connected with water outlets on the water distribution pipelines 14.
As shown in fig. 2 and 4; two circumferential grooves 5.1 are formed in the inner peripheral wall of the cutting sleeve 9, the two grooves 5.1 are respectively positioned in front of and behind a water drainage hole of the transverse shaft type cutting speed reducer, a Glare ring 5 is embedded in the groove 5.1, the inner ring of the Glare ring 5 is connected with a shell of the transverse shaft type cutting speed reducer 2 in a sealing mode, and annular gaps in front of and behind the water drainage hole are sealed by the two Glare rings 5; the water inlet (D shown in fig. 8) of the water distribution line 14 passes through the wall thickness of the cutting sleeve 9 and out between the two greige rings 5.
As shown in fig. 1 and 3; the cutting teeth are fixed on the surface of the cutting sleeve 9 according to an arrangement mode of 4 spiral lines and one line and one tooth (the number of the first line and several teeth represents the number of cutting teeth arranged on each layer, the number of teeth of the first line and several teeth is the submultiple of the number of the spiral lines, for example, 1 tooth or 3 teeth are arranged on the first line if 3 spiral lines are provided, and 1 tooth or 2 teeth or 4 teeth are arranged on the first line if 4 spiral lines are provided), and each cutting head contains 52 cutting teeth, so that the cutting efficiency is optimized.
As shown in fig. 6 and 7; the nozzles in a single group are arranged in a row along the length direction of the cutting sleeve 9, the nozzle row inclines along the rotation direction of the cutting teeth, and the nozzle rows are uniformly arranged around the cutting sleeve 9. The number of the nozzles is 10, each row comprises 3 nozzles, the number of the built-in water tanks 19 is 10, and each built-in water tank 19 is linearly connected with 3 nozzles in the middle area of the cutting sleeve 9, as shown in fig. 8; the water outlets A, B, C on the water distribution pipeline 14 are connected with the nozzles in a one-to-one correspondence.
As shown in fig. 9 and 10; the cutting sleeve 9 comprises a front cutting sleeve 16 and a rear cutting sleeve 17 which are sequentially connected along the axial direction, and the rear cutting sleeve 17 comprises two conical cylinders with large ends connected; the front cutting sleeve 16 is arc-shaped and is smoothly connected with the small end of the head of the rear cutting sleeve 17; the cutting sleeve 9 is a flat head. The cutting sleeve 9 is composed of a small-angle inverted cone, a small-angle forward cone and a small-radius arc in shape, so that the cutting torque can be increased, and meanwhile, the corner coal rocks at the bottoms of two sides of the roadway are reduced to the maximum extent on the premise that the cutting bottom plate is smooth, so that good construction conditions are provided for the supporting process (the supporting range of the coal machine at the bottom plate is effectively enlarged). In addition, the front cutting sleeve 16 and the rear cutting sleeve 17 are connected in a welding mode, and the anti-shearing pin 18 is inserted into the welding seam in the radial direction, so that the shearing resistance of the cutting sleeve during rotating cutting is improved.
As shown in fig. 11, 12; the cutting tooth comprises a tooth holder 10, a retainer ring 4 and a pickaxe-shaped cutting tooth 3, wherein the tooth holder 10 is welded with the cutting sleeve 9 in a multilayer and multi-pass welding mode, the bottom of the tooth holder 10 is welded on the surface of the cutting sleeve 9 by adopting a J-shaped groove, and the pickaxe-shaped cutting tooth 3 is arranged on the tooth holder 10 through the retainer ring 4; the tooth holder 10 is a forged piece made of 21CrNiMo6 material and has good impact resistance and wear resistance. J-shaped grooves are formed in the bottom of the toothholder, welding strength is improved, the open welding rate of the rear end of the toothholder in the cutting process is reduced, and the service life of the toothholder is prolonged.
As shown in fig. 5; the nozzle comprises a nozzle seat 12 and a linear nozzle 15, the nozzle seat 12 is welded on the surface of the cutting sleeve 9, and the linear nozzle 15 is arranged in the nozzle seat 12 and is connected with the water outlet of the water distribution pipeline 14.
As shown in fig. 6; the cutting head further comprises a reinforcing rib 13, and the reinforcing rib 13 is welded on the front side of the nozzle seat 12 along the rotating direction of the cutting head 1. Reinforcing ribs 13 are welded to the stressed part of the nozzle holder 12 to improve the stability. The spout 12 may be adjustable to a greater extent than an in-line linear nozzle.
As shown in fig. 1 and 4; the root small end of the rear cutting sleeve 17 is uniformly welded with a circle of wear-resisting plates 11. The abrasive resistance at the small end of the root of the cutting sleeve 9 is improved, and the probability that the coal rock debris enters the transverse shaft type cutting speed reducer 2 is reduced.
The cutting sleeve 9 is fastened on the output shaft of the horizontal shaft type speed reducer 7 through an octagonal structure (a regular octagonal hole and a regular octagonal shaft matching structure, and similarly, a hexagonal connection), an end cover 6 and a screw 8. The dismouting of being convenient for compares in the hookup mode of axis of ordinates cutterhead and cutting spindle (often have spline coupling, flange coupling etc.), has improved the convenience of installation in the pit.
The working principle of the internal spraying of the cutting head of the internal spraying type horizontal shaft type heading machine is as follows: the external fluid flows into a sealed space formed by the two GREEN rings 5 through an inherent fluid channel in the horizontal shaft type cutting reducer shell, then flows to the water spray 12 on the surface of the cutting sleeve 9 through the water distribution pipeline 14 in the built-in water tank 19 on the cutting sleeve 9, and is sprayed out to the periphery of the tooth tip of the corresponding pickaxe-shaped cutting tooth 3 in a mist shape through the linear nozzle 15 in the water spray seat 12, so that the high temperature and dust generated by the pickaxe-shaped cutting tooth 3 when the cutting head performs cutting operation are reduced, and the cutting efficiency and the service life of the pickaxe-shaped cutting tooth are improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A high-efficiency internal spray type transverse shaft type cantilever excavator cutting head is characterized in that the cutting head (1) is used for being mounted on a transverse shaft type cutting speed reducer (2) and communicated with a built-in water path of the transverse shaft type cutting speed reducer (2), the cutting head (1) comprises a cutting sleeve (9) and cutting teeth, and a plurality of cutting teeth are arranged around the outer peripheral wall of the cutting sleeve (9) in a spiral line shape;
the method is characterized in that: nozzles are inserted between the cutting teeth on the peripheral wall of the cutting sleeve (9) and divided into a plurality of groups, a plurality of built-in water tanks (19) are arranged on the peripheral wall of the cutting sleeve, each built-in water tank (19) is linearly connected with a plurality of nozzles in a single group, water distribution pipelines (14) are fixed in the built-in water tanks (19), and water outlets on the water distribution pipelines (14) are correspondingly connected with the nozzles one by one; two circumferential grooves (5.1) are formed in the inner peripheral wall of the cutting sleeve (9), the two grooves (5.1) are respectively positioned in front of and behind a water drainage hole of the transverse shaft type cutting speed reducer, a GRILL (5) is embedded in each groove (5.1), the inner ring of each GRILL (5) is connected with the shell of the transverse shaft type cutting speed reducer (2) in a sealing mode, and the two GRILL (5) seal annular gaps in front of and behind the water drainage hole; the water inlet on the water distribution pipeline (14) penetrates through the wall thickness of the cutting sleeve (9) and penetrates out from between the two GREEN rings (5).
2. An efficient internal spray transverse-axis boom of claim 1, wherein: the cutting teeth are fixed on the surface of the cutting sleeve (9) according to the arrangement mode of 4 spiral lines and one line of one tooth, single group of nozzles are arranged in a row along the length direction of the cutting sleeve (9), the nozzle row inclines along the rotation direction of the cutting teeth, and the nozzle row is arranged around the cutting sleeve (9).
3. An efficient internal spray transverse-axis boom of claim 1, wherein: the cutting sleeve (9) comprises a front cutting sleeve (16) and a rear cutting sleeve (17) which are sequentially connected along the axial direction, and the rear cutting sleeve (17) comprises two conical barrels with large ends connected; the front cutting sleeve (16) is arc-shaped and is smoothly connected with the small end of the head of the rear cutting sleeve (17); the cutting sleeve (9) is a flat head.
4. A high efficiency inner spray transverse shaft boom miner cutting head according to claim 3 wherein: the front cutting sleeve (16) and the rear cutting sleeve (17) are connected in a welding mode, and an anti-shearing pin (18) is inserted in the welding seam in the radial direction.
5. An efficient internal spray transverse-axis boom of claim 2, wherein: the cutting tooth comprises a tooth holder (10), a check ring (4) and a pickaxe-shaped cutting tooth (3), the bottom of the tooth holder (10) is welded on the surface of a cutting sleeve (9) by adopting a J-shaped groove, and the pickaxe-shaped cutting tooth (3) is arranged on the tooth holder (10) through the check ring (4); the tooth holder (10) adopts a forged piece made of 21CrNiMo6 material.
6. An efficient internal spray transverse shaft boom miner cutting head according to claim 5 wherein: the nozzle comprises a nozzle seat (12) and a linear nozzle (15), the nozzle seat (12) is welded on the surface of the cutting sleeve (9), and the linear nozzle (15) is installed in the nozzle seat (12) and is connected with a water outlet of the water distribution pipeline (14).
7. An efficient internal spray transverse shaft boom miner cutting head according to claim 6 wherein: the cutting head further comprises a reinforcing rib (13), and the reinforcing rib (13) is welded on the front side of the nozzle seat (12) along the rotating direction of the cutting head (1).
8. A high efficiency inner spray transverse shaft boom miner cutting head according to claim 3 wherein: the root small end of the rear cutting sleeve (17) is uniformly welded with a circle of wear-resisting plates (11).
9. An efficient internal spray transverse-axis boom of claim 1, wherein: the cutting sleeve (9) is fastened on an output shaft of the horizontal shaft type speed reducer (7) through an octagonal structure, an end cover (6) and a screw (8).
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|---|---|---|---|
| CN202110926183.XA CN113565502B (en) | 2021-08-12 | 2021-08-12 | Efficient internal spray type transverse shaft type cantilever type heading machine cutting head |
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| CN202110926183.XA CN113565502B (en) | 2021-08-12 | 2021-08-12 | Efficient internal spray type transverse shaft type cantilever type heading machine cutting head |
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| CN109681202A (en) * | 2019-01-28 | 2019-04-26 | 黄山市徽州安华工程机械有限公司 | The spray dust-reducing system of development machine |
| CN210660072U (en) * | 2019-10-15 | 2020-06-02 | 牛一村 | Telescopic cutting device and heading machine |
| CN211737127U (en) * | 2019-12-18 | 2020-10-23 | 大同菲利普斯采矿机械制造有限公司 | Split type coal mining machine spiral drum |
| CN111779482A (en) * | 2020-07-06 | 2020-10-16 | 中国煤炭科工集团太原研究院有限公司 | Cutting mechanism of internal spray type horizontal shaft type heading machine |
| CN112228060A (en) * | 2020-10-26 | 2021-01-15 | 中国煤炭科工集团太原研究院有限公司 | Method and device for controlling a cutting drum |
| CN112460246A (en) * | 2020-12-22 | 2021-03-09 | 中国煤炭科工集团太原研究院有限公司 | Internal circulation cooling cutting speed reducer of transverse shaft type tunneling machine |
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