CN109707393B - Cutting part of heading machine and heading machine - Google Patents
Cutting part of heading machine and heading machine Download PDFInfo
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- CN109707393B CN109707393B CN201711010054.6A CN201711010054A CN109707393B CN 109707393 B CN109707393 B CN 109707393B CN 201711010054 A CN201711010054 A CN 201711010054A CN 109707393 B CN109707393 B CN 109707393B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 216
- 230000000712 assembly Effects 0.000 claims abstract description 24
- 238000000429 assembly Methods 0.000 claims abstract description 24
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 21
- 230000036346 tooth eruption Effects 0.000 claims abstract description 18
- 230000005641 tunneling Effects 0.000 claims description 18
- 230000007547 defect Effects 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 description 13
- 239000011435 rock Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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Abstract
The invention provides a cutting part of a heading machine and the heading machine, wherein the cutting part of the heading machine comprises a cutting arm; the two cutting head assemblies are symmetrically arranged along the cutting arm; the cutting head assembly comprises a cutting head shell and a speed reducer, and a plurality of cutting teeth are arranged on the cutting head shell; the main shaft is positioned in the cutting head shell and used for driving the cutting head shell to rotate; the two spindles are at a preset angle along the axial extension line, so that the distance between the two cutting head shells and the end departing from the cutting arm is smaller than the distance between the two cutting head shells and the end facing the cutting arm. According to the cutting part of the heading machine, the two cutting head shells face the same direction and rotate at the same rotating speed, and cutting teeth of the two cutting head shells on the working face are close to each other, so that the defect that a hollow tooth part exists in the middle of the cutting part of the traditional transverse shaft type heading machine is overcome, the defect that the section of the cutting part of the traditional transverse shaft type heading machine is not good in forming is overcome, and user experience is improved.
Description
Technical Field
The invention relates to the technical field of engineering machinery manufacturing, in particular to a cutting part of a heading machine and the heading machine.
Background
The cutting part of the boom-type roadheader mainly comprises a cutting arm and a cutting head assembly arranged on the cutting arm, the cutting head rotates, the cutting bit cuts a target, and crushed aggregates cut off are transported away through a conveying device, so that roadway tunneling is realized. At present, the cutting part of the cantilever type roadheader mainly comprises an EBZ series longitudinal shaft type and an EBH series transverse shaft type. However, in the cutting part of the longitudinal shaft type heading machine in the prior art, the cutting teeth are embedded into the rock wall in the working process, the rear external spray can only cool the cutting teeth exposed out of the rock wall, the cooling effect on the working cutting teeth embedded into the rock wall is poor, so that the consumption of the cutting teeth is large, the cutting teeth at the arc part cannot well take drilling and transverse sweeping working conditions into consideration, the stability of the machine body is poor compared with the transverse shaft type, and the cutting efficiency is low; a cutting part of a horizontal shaft type tunneling machine in the prior art has a hollow tooth part in the middle, a rock roadway in China can be designed to be arched generally, and the horizontal shaft type tunneling machine needs to form a section of straight line on the roadway when the roadway is formed.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, it is an object of the present invention to provide a cutting section of a heading machine.
Another object of the present invention is to provide a heading machine.
To achieve at least one of the above objects, according to an embodiment of a first aspect of the present invention, there is provided a cutting part of a heading machine, including a cutting arm; the two cutting head assemblies are symmetrically arranged along the cutting arm; the cutting head assembly comprises a cutting head shell and a speed reducer, and a plurality of cutting teeth are arranged on the cutting head shell; the main shaft is positioned in the cutting head shell and used for driving the cutting head shell to rotate; the two spindles are at a preset angle along the axial extension line, so that the distance between the two cutting head shells and the end departing from the cutting arm is smaller than the distance between the two cutting head shells and the end facing the cutting arm.
According to the cutting part of the heading machine provided by the embodiment of the invention, the two cutting head assemblies are symmetrically arranged along the cutting arm and are respectively connected with the two spindles, the spindles are used for driving the cutting head shells to rotate, in addition, the extension lines of the two spindles along the axial direction are at preset angles, so that the distance between the two cutting head shells at the end deviating from the cutting arm is smaller than the distance between the two cutting head shells at the end facing towards the cutting arm, and the two cutting head shells can be close to each other at the end deviating from the cutting arm by reasonably designing the angles of the extension lines of the two spindles along the axial direction. When the heading machine is used for heading, the two cutting head shells face the same direction and rotate at the same rotating speed, and cutting teeth of the two cutting head shells on the working face are close to each other, so that the defect that a hollow tooth part exists in the middle of the cutting part of the traditional transverse shaft type heading machine is overcome, and the defect that the section of the cutting part of the traditional transverse shaft type heading machine is not good in forming is avoided. Simultaneously, two cutterhead subassemblies are connected with two main shafts respectively, and the main shaft drives the cutterhead casing and rotates, can be through the angle of designing two main shafts along axial extension line, make the entry driving machine cutting part carry out the tunnelling work through the pick of cutterhead casing lateral wall, because the main shaft drives the cutterhead subassembly rotatory, the anterior work pick of lateral wall is rotatory behind the cutting rock wall to the lateral wall rear portion, cool off by the outer spraying at rear, thereby overcome traditional axis of ordinates formula entry driving machine cutting part and buried the rock wall completely at the anterior pick of cutterhead casing at the during operation, the outer spraying at rear can only cool off the pick that exposes the rock wall, it is poor to the work pick cooling effect who buries the rock wall, lead to pick consumption defect such as big, user experience has been promoted.
In addition, the cutting part of the heading machine in the above embodiment provided by the invention may also have the following additional technical features:
in the above technical solution, preferably, the two cutter head housings are connected at one end away from the cutting arm or leave a gap a so that two cutting surfaces generated by the two cutter head assemblies during tunneling work are connected.
In the technical scheme, the end, away from the cutting arm, of each of the two cutting head shells is used as a working surface for tunneling, and the two cutting head shells are designed to be connected with one end, away from the cutting arm, of each of the two cutting head shells, so that the two cutting surfaces generated by the two cutting head components during tunneling are connected, and the strength of the connecting part of the two cutting head shells is improved; or, can leave clearance A in two cutterhead casings deviating from cutting arm one end, through the size of reasonable design clearance A, and adjust the other pick angle of clearance A and pick size, the technical effect that two cutting planes that the cutterhead subassembly produced when tunnelling the work are connected can be realized equally, thereby make the entry driving machine cutting unit can increase substantially once the drilling depth, simultaneously when being used for tunnelling the arch tunnel, the arch at its top can be shaped, overcome the not good shortcoming of horizontal axis formula entry driving machine cutting unit section shaping, the application scope of product has been promoted, user experience has been ensured.
In any of the above technical solutions, preferably, the value range of the gap a is 0< a ≦ 50 mm.
In the technical scheme, preferably, the value range of the gap A of the two cutter head shells departing from one end of the cutting arm is 0< A ≤ 50mm, the maximum value of the designed gap A is 50, on one hand, the distance of the two cutter head shells departing from one end of the cutting arm can not be overlarge, the angles and the sizes of the picks beside the gap A can be adjusted, two cutting faces generated by the cutter head components during tunneling work are connected, on the other hand, a gap is reserved at one end of the two cutter head shells departing from the cutting arm, the requirements on the processing precision and the assembling precision of the two cutter head components are reduced, the production efficiency is improved, the production cost is reduced, and the market competitiveness of products is improved.
In any of the above technical solutions, preferably, the heading machine cutting part further includes: a motor; an input shaft is arranged on the cutting arm; the input shaft is connected with a motor, and the motor drives the input shaft to rotate.
In the technical scheme, the cutting arm is provided with an input shaft, and the motor is connected with the input shaft and used for driving the input shaft to rotate so as to drive the cutting head assembly to rotate.
In any of the above technical solutions, preferably, the cutting arm further includes: the first planetary gear assembly comprises a first gear shaft, a gear shaft sleeve, a first planetary gear carrier and a first planetary gear assembly; the input shaft is connected with the gear shaft sleeve and is used for driving the gear shaft sleeve to rotate; a first planet carrier is arranged on the first gear shaft; the first planet wheel assembly is arranged on the first planet wheel carrier and is connected with the gear shaft sleeve through gear meshing so that the gear shaft sleeve drives the first gear shaft to rotate.
In the technical scheme, the cutting arm is further provided with a first gear shaft, a gear shaft sleeve, a first planet wheel carrier and a first planet wheel assembly. The input shaft is connected with the gear shaft sleeve, the gear shaft sleeve is driven to rotate through rotation of the input shaft, and preferably, the input shaft is connected with the gear shaft sleeve through meshing of the bevel gears. The first gear shaft is fixedly connected with the first planet wheel frame, the first planet wheel assembly is installed on the first planet wheel frame and is connected with the gear shaft sleeve through gear meshing, and the rotation of the gear shaft sleeve drives the first planet wheel assembly to rotate so as to drive the first planet wheel frame to rotate, so that the first gear shaft fixedly connected with the first planet wheel frame rotates.
In any of the above technical solutions, preferably, both ends of the first gear shaft are bevel gears.
In this technical scheme, all set up the both ends of first gear shaft into conical gear, because conical gear can change the direction of drive, through reasonable design conical gear's inclination, can realize that cutting arm and cutterhead subassembly pass through the gear engagement transmission and be connected, and need not to add other connecting elements, reduced the part that cutting arm and cutterhead subassembly transmission are connected, reduced the processing degree of difficulty of product, improved production efficiency.
In any one of the above technical solutions, preferably, the speed reducer includes: the speed reducer box body, the second planet wheel assembly, the second planet wheel carrier and the second gear shaft are arranged in the box body; the second planet wheel carrier and the second gear shaft are arranged inside the speed reducer box body.
In the technical scheme, a second planet wheel component is arranged on a second planet wheel carrier and is in transmission connection with a main shaft, a second gear shaft is in meshing connection with the second planet wheel component through a gear, the second planet wheel component is driven to rotate through the rotation of the second gear shaft and is decelerated through the second planet wheel component, so that the main shaft is driven to rotate, and the rotation of a cutting head component is finally realized; the second planet wheel carrier and the second gear shaft are arranged inside the speed reducer box body, on one hand, the speed reducer box body has the function of supporting and fixing internal parts, on the other hand, the second planet wheel carrier and the second gear shaft can be firstly installed inside the speed reducer box body, the components are produced in batches, and then the components are assembled inside the cutting part of the heading machine, so that the assembly efficiency of products is improved.
In any of the above technical solutions, preferably, the input end gear of the second gear shaft is a bevel gear, and the output end gear of the second gear shaft is a cylindrical gear; input end gears of the two cutting head assemblies are respectively connected with two ends of a first gear shaft; the output gear is connected with the second planetary wheel assembly.
In the technical scheme, the input end gear of the second gear shaft is a bevel gear, and is connected with the bevel gears arranged at the two ends of the first gear shaft, the bevel gears at the two ends of the first gear shaft and the inclination angle of the input end gear of the second gear shaft are reasonably designed, so that the bevel gears at the two ends of the first gear shaft are respectively in transmission connection with the input end gears of the two cutting head assemblies, the second gear shaft is driven to rotate through the rotation of the first gear shaft, the two cutting head assemblies are driven to rotate, other connecting transmission parts do not need to be added, and the transmission structure is simplified. Meanwhile, the output end gear of the second gear shaft is connected with the second planetary wheel component to drive the second planetary wheel component to rotate.
In any of the above technical solutions, preferably, the preset angle of the extension lines of the two main shafts along the axial direction is greater than or equal to 120 ° and less than 180 °.
In the technical scheme, preferably, when the preset angle of the extension lines of the two main shafts along the axial direction is more than or equal to 120 degrees and less than 180 degrees, the two cutting surfaces generated by the cutting head assembly during tunneling work can be connected, so that the cutting part of the tunneling machine overcomes the defect that a hollow tooth part exists in the cutting part of the traditional horizontal shaft type tunneling machine, and the user experience is ensured.
According to a second aspect of the present invention, there is provided a heading machine having the cutting part of the heading machine provided in any one of the embodiments of the first aspect, so that the embodiments of the present invention provide all the advantages of the cutting part of the heading machine provided in any one of the embodiments of the first aspect, which are not listed here.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
figure 1 shows a schematic structural view of a cutting part of a heading machine according to an embodiment of the invention;
figure 2 shows a further structural schematic of a cutting section of a roadheader according to an embodiment of the invention;
figure 3 shows an enlarged partial view of the cutting portion of the roadheader of figure 2 at a according to one embodiment of the invention.
Reference numerals:
wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
10 cutting arms, 102 input shafts, 104 first gear shafts, 106 gear shaft sleeves, 108 first planet wheel carriers, 110 first planet wheel assemblies, 20 cutting head assemblies, 202 cutting head shells, 204 cutting teeth, 30 speed reducers, 302 speed reducer boxes, 304 second planet wheel assemblies, 306 second planet wheel carriers, 308 second gear shafts, 3082 input end gears, 3084 output end gears and 40 main shafts.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The cutting portion of the heading machine and the heading machine according to some embodiments of the present invention will now be described with reference to fig. 1-3.
As shown in fig. 1, an embodiment of the first aspect of the invention provides a cutting part of a heading machine, which comprises a cutting arm 10; the two cutting head assemblies 20 are symmetrically arranged, and the two cutting head assemblies 20 are symmetrically arranged along the cutting arm 10; the cutting head assembly 20 comprises a cutting head shell 202 and a speed reducer 30, wherein a plurality of cutting picks 204 are arranged on the cutting head shell 202; the spindle 40 is positioned in the cutting head shell 202 and is used for driving the cutting head shell 202 to rotate; the extension lines of the two spindles 40 along the axial direction form a preset angle, so that the distance between the two cutting head housings 202 at the end away from the cutting arm 10 is smaller than the distance between the two cutting head housings 202 at the end facing the cutting arm 10.
According to the cutting part of the heading machine provided by the embodiment of the invention, the two cutting head assemblies 20 are symmetrically arranged along the cutting arm 10, the two cutting head assemblies 20 are respectively connected with the two spindles 40, the spindles 40 are used for driving the cutting head housings 202 to rotate, and the axial extension lines of the two spindles 40 form a preset angle, so that the distance between the two cutting head housings 202 at the ends departing from the cutting arm 10 is smaller than the distance between the two cutting head housings 202 at the ends facing the cutting arm 10, and the two cutting head housings 202 can be close to each other at the ends departing from the cutting arm 10 by reasonably designing the axial extension lines of the two spindles 40. When the heading machine is used for heading, the two cutting head shells 202 face the same direction and rotate at the same rotating speed, and the cutting teeth 204 of the two cutting head shells 202 on the working faces are close to each other, so that the defect that a hollow tooth part exists in the middle of the cutting part of the traditional horizontal shaft type heading machine is overcome, and the defect that the section of the cutting part of the traditional horizontal shaft type heading machine is not good in forming is overcome. Meanwhile, the two cutting head assemblies 20 are respectively connected with the two main shafts 40, the main shafts 40 drive the cutting head shell 202 to rotate, the angle of the two main shafts 40 along the axial extension line can be designed, so that the cutting part of the heading machine can perform heading work through the cutting teeth 204 on the side wall of the cutting head shell 202, the main shafts 40 drive the cutting head assemblies 20 to rotate, the working cutting teeth 204 on the front part of the side wall cut the rock wall and then rotate to the rear part of the side wall, and the cutting teeth are cooled by the external spray on the rear part, so that the defects that the cutting teeth 204 on the front part of the cutting head shell 202 are completely embedded into the rock wall when the cutting part of the traditional longitudinal shaft type heading machine works are overcome, the external spray on the rear part can only cool the cutting teeth 204 exposing the rock wall, the cooling effect of the working cutting teeth 204 embedded into.
In one embodiment provided by the present invention, preferably, the two cutter head housings 202 are connected or spaced apart at the end facing away from the cutting arm 10 by a gap a to connect the two cutting planes created by the two cutter head assemblies 20 during tunneling operations.
In this embodiment, the two cutting head housings 202 are connected at the end away from the cutting arm 10 as the working surfaces when the two cutting head housings 202 are heading, so that the two cutting surfaces generated by the two cutting head assemblies 20 during heading work are connected, and the strength of the connecting part of the two cutting head housings 202 is improved; or, a gap a can be left at one end of the two cutting head shells 202 which is far away from the cutting arm 10, the size of the gap a is reasonably designed, the angle of the cutting pick 204 beside the gap a and the size of the cutting pick 204 are adjusted, and the technical effect that two cutting surfaces generated by the cutting head component 20 during tunneling work are connected can be realized, so that the once drilling depth of the cutting part of the tunneling machine can be greatly improved, and simultaneously, when the cutting head is used for tunneling an arch tunnel, the arch at the top of the cutting head component can be formed, the defect that the section of the cutting part of the transverse shaft type tunneling machine is not well formed is overcome, the application range of products is improved, and the user experience is ensured.
In one embodiment provided by the present invention, preferably, the value range of the gap a is 0< a ≦ 50 mm.
In this embodiment, preferably, when the value range of the gap a of the two cutter head housings 202 at the end departing from the cutting arm 10 is 0< a ≦ 50mm, the maximum value of the gap a is 50 by design, on one hand, the distance between the two cutter head housings 202 at the end departing from the cutting arm 10 is not too large, the angle of the cutting pick 204 and the size of the cutting pick 204 beside the gap a can be adjusted, so that the two cutting faces generated by the cutter head assembly 20 during tunneling work are connected, on the other hand, a gap is left at the end of the two cutter head housings 202 departing from the cutting arm 10, the requirements on the machining precision and the assembling precision of the two cutter head assemblies 20 are reduced, the production efficiency is improved, the production cost is reduced, and the market competitiveness of the product is improved.
As shown in fig. 2, in one embodiment provided by the present invention, preferably, the heading machine cutting part further includes: a motor; the cutting arm 10 is provided with an input shaft 102; the input shaft 102 is connected to a motor, which drives the input shaft 102 to rotate.
In this embodiment, the cutting arm 10 is provided with an input shaft 102, and a motor is connected to the input shaft 102 for driving the input shaft 102 to rotate, thereby rotating the cutter head assembly 20.
As shown in fig. 2, in one embodiment provided by the present invention, the cutting arm 10 preferably further comprises: a first gear shaft 104, a gear sleeve 106, a first planet carrier 108 and a first planet assembly 110; the input shaft 102 is connected with a gear shaft sleeve 106 and used for driving the gear shaft sleeve 106 to rotate; a first planet carrier 108 is arranged on the first gear shaft 104; the first planetary gear assembly 110 is mounted on the first planetary gear carrier 108, and the first planetary gear assembly 110 is connected with the gear sleeve 106 through gear engagement, so that the gear sleeve 106 drives the first gear shaft 104 to rotate.
In this embodiment, the cutting arm 10 is further provided with a first gear shaft 104, a gear sleeve 106, a first planet carrier 108 and a first planet assembly 110. The input shaft 102 is connected to the gear shaft sleeve 106, and the gear shaft sleeve 106 is driven to rotate by the rotation of the input shaft 102, preferably, the input shaft 102 is connected to the gear shaft sleeve 106 by a bevel gear engagement. The first gear shaft 104 is fixedly connected with the first planet carrier 108, the first planet assembly 110 is mounted on the first planet carrier 108, and the first planet assembly 110 is connected with the gear sleeve 106 through gear meshing, and the rotation of the gear sleeve 106 drives the first planet assembly 110 to rotate, so as to drive the first planet carrier 108 to rotate, so that the first gear shaft 104 fixedly connected with the first planet carrier 108 rotates.
In one embodiment provided by the present invention, both ends of the first gear shaft 104 are preferably bevel gears.
In this embodiment, both ends of the first gear shaft 104 are set as bevel gears, and since the bevel gears can change the transmission direction, the cutting arm 10 and the cutting head assembly 20 can be connected in a gear engagement transmission manner through reasonably designing the inclination angle of the bevel gears, and other connecting parts do not need to be added, so that the parts for the transmission connection of the cutting arm 10 and the cutting head assembly 20 are reduced, the processing difficulty of products is reduced, and the production efficiency is improved.
As shown in fig. 3, in an embodiment of the present invention, preferably, the speed reducer 30 includes: a reducer box 302, a second planet wheel assembly 304, a second planet wheel carrier 306 and a second gear shaft 308; the second carrier 306 and the second gear shaft 308 are disposed inside the reducer case 302.
In this embodiment, the second planetary wheel assembly 304 is mounted on the second planetary wheel carrier 306 and is in transmission connection with the main shaft 40, the second gear shaft 308 is in gear engagement with the second planetary wheel assembly 304, the second planetary wheel assembly 304 is driven to rotate by the rotation of the second gear shaft 308, and is decelerated by the second planetary wheel assembly 304, so that the main shaft 40 is driven to rotate, and finally the rotation of the cutting head assembly 20 is realized; the second planet carrier 306 and the second gear shaft 308 are arranged inside the speed reducer box body 302, on one hand, the speed reducer box body 302 has a supporting and fixing effect on internal parts, on the other hand, the second planet carrier 306 and the second gear shaft 308 can be firstly installed inside the speed reducer box body 302 to be produced into components in batches, and then the components are assembled inside the cutting part of the heading machine, so that the assembly efficiency of products is improved.
As shown in fig. 3, in one embodiment of the present invention, preferably, the input gear 3082 of the second gear shaft 308 is a bevel gear, and the output gear 3084 of the second gear shaft 308 is a cylindrical gear; the input end gears 3082 of the two cutting head assemblies 20 are respectively connected with two ends of the first gear shaft 104; output gear 3084 is coupled to second planetary wheel assembly 304.
In this embodiment, the input end gear 3082 of the second gear shaft 308 is a bevel gear and is connected with the bevel gears arranged at the two ends of the first gear shaft 104, and the bevel gears at the two ends of the first gear shaft 104 and the inclination angle of the input end gear 3082 of the second gear shaft 308 are reasonably designed, so that the bevel gears at the two ends of the first gear shaft 104 are respectively in transmission connection with the input end gears 3082 of the two cutting head assemblies 20, and the second gear shaft 308 is driven to rotate by the rotation of the first gear shaft 104, thereby driving the two cutting head assemblies 20 to rotate, without adding other connecting transmission parts, and simplifying the transmission structure. Meanwhile, the output gear 3084 of the second gear shaft 308 is connected with the second planetary wheel assembly 304 to drive the second planetary wheel assembly 304 to rotate.
In one embodiment provided by the present invention, preferably, the preset angle of the extension line of the two main shafts 40 along the axial direction is preferably greater than or equal to 120 ° and less than 180 °.
In this embodiment, preferably, when the preset angle of the extension lines of the two spindles 40 along the axial direction is greater than or equal to 120 ° and less than 180 °, the two cutting surfaces generated by the cutting head assembly 20 during tunneling operation can be connected, so that the cutting part of the heading machine overcomes the defect of the empty tooth part existing in the cutting part of the conventional horizontal-shaft heading machine, and the user experience is ensured.
According to a second aspect of the present invention, there is provided a heading machine having the cutting part of the heading machine provided in any one of the embodiments of the first aspect, so that the embodiments of the present invention provide all the advantages of the cutting part of the heading machine provided in any one of the embodiments of the first aspect, which are not listed here.
In the description of the present specification, the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A heading machine cutting section, comprising:
a cutting arm;
the two cutting head assemblies are symmetrically arranged along the cutting arm;
the cutting head assembly comprises a cutting head shell and a speed reducer, and a plurality of cutting teeth are arranged on the cutting head shell;
the main shaft is positioned in the cutting head shell and used for driving the cutting head shell to rotate;
the extension lines of the two spindles along the axial direction form a preset angle, so that the distance between the two cutting head shells at the end departing from the cutting arm is smaller than the distance between the two cutting head shells at the end facing the cutting arm;
the two cutting head shells are connected or a gap A is reserved at one end, which is far away from the cutting arm, so that two cutting surfaces generated by the two cutting head components during tunneling work are connected.
2. The ripper cutting section of claim 1,
the value range of the gap A is 0< A < 50 mm.
3. The ripper cutter of claim 1, further comprising:
a motor;
an input shaft is arranged on the cutting arm;
the input shaft is connected with the motor, and the motor drives the input shaft to rotate.
4. The roadheader cutting section of claim 3, wherein the cutting arm further comprises:
the first planetary gear assembly comprises a first gear shaft, a gear shaft sleeve, a first planetary gear carrier and a first planetary gear assembly;
the input shaft is connected with the gear shaft sleeve and is used for driving the gear shaft sleeve to rotate;
the first gear shaft is provided with the first planet carrier;
the first planet wheel assembly is arranged on the first planet wheel carrier and is connected with the gear shaft sleeve through gear meshing, so that the gear shaft sleeve drives the first gear shaft to rotate.
5. The ripper cutting section of claim 4,
and two ends of the first gear shaft are both bevel gears.
6. The ripper cutting section of claim 4,
the speed reducer includes: the speed reducer box body, the second planet wheel assembly, the second planet wheel carrier and the second gear shaft are arranged in the box body; the second planet carrier and the second gear shaft are arranged inside the speed reducer box body.
7. The ripper cutting section of claim 6,
the input end gear of the second gear shaft is a conical gear, and the output end gear of the second gear shaft is a cylindrical gear;
the input end gears of the two cutting head assemblies are respectively connected with two ends of the first gear shaft;
the output gear is connected with the second planetary wheel assembly.
8. The roadheader cutting section according to any of the claims 1 to 7,
the preset angle of the extension lines of the two main shafts along the axial direction is more than or equal to 120 degrees and less than 180 degrees.
9. A heading machine, comprising: a heading machine cutting section as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711010054.6A CN109707393B (en) | 2017-10-25 | 2017-10-25 | Cutting part of heading machine and heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711010054.6A CN109707393B (en) | 2017-10-25 | 2017-10-25 | Cutting part of heading machine and heading machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109707393A CN109707393A (en) | 2019-05-03 |
| CN109707393B true CN109707393B (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711010054.6A Active CN109707393B (en) | 2017-10-25 | 2017-10-25 | Cutting part of heading machine and heading machine |
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| CN (1) | CN109707393B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201810307U (en) * | 2010-09-17 | 2011-04-27 | 凯盛重工有限公司 | Cutting mechanism for heading machine |
| WO2012058701A2 (en) * | 2010-11-05 | 2012-05-10 | Sandvik Mining And Construction G.M.B.H. | Tunneling machine |
| CN202610866U (en) * | 2012-04-28 | 2012-12-19 | 安徽惊天液压智控股份有限公司 | Hydraulic transverse shaft milling head |
| CN105178977A (en) * | 2015-08-31 | 2015-12-23 | 中国矿业大学 | Cutting part of heading machine |
| CN106150492A (en) * | 2016-08-05 | 2016-11-23 | 辽宁工程技术大学 | Cutting mechanism for heading machine with double cutterheads |
-
2017
- 2017-10-25 CN CN201711010054.6A patent/CN109707393B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201810307U (en) * | 2010-09-17 | 2011-04-27 | 凯盛重工有限公司 | Cutting mechanism for heading machine |
| WO2012058701A2 (en) * | 2010-11-05 | 2012-05-10 | Sandvik Mining And Construction G.M.B.H. | Tunneling machine |
| CN202610866U (en) * | 2012-04-28 | 2012-12-19 | 安徽惊天液压智控股份有限公司 | Hydraulic transverse shaft milling head |
| CN105178977A (en) * | 2015-08-31 | 2015-12-23 | 中国矿业大学 | Cutting part of heading machine |
| CN106150492A (en) * | 2016-08-05 | 2016-11-23 | 辽宁工程技术大学 | Cutting mechanism for heading machine with double cutterheads |
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Denomination of invention: Excavation machine cutting section and excavation machine Effective date of registration: 20231212 Granted publication date: 20201110 Pledgee: Shenyang Santaizi Sub Branch of China Everbright Bank Co.,Ltd. Pledgor: Sany Heavy Equipment Co.,Ltd. Registration number: Y2023210000341 |
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