CN204899921U - Entry driving machine cutterhead and entry driving machine - Google Patents
Entry driving machine cutterhead and entry driving machine Download PDFInfo
- Publication number
- CN204899921U CN204899921U CN201520489122.1U CN201520489122U CN204899921U CN 204899921 U CN204899921 U CN 204899921U CN 201520489122 U CN201520489122 U CN 201520489122U CN 204899921 U CN204899921 U CN 204899921U
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- cutting head
- cutterhead
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- toothholder
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Abstract
The utility model discloses an entry driving machine cutterhead and entry driving machine, cutterhead include the cutterhead body, set up in toothholder on the cutterhead body with set up in pick on the toothholder, it is a plurality of the toothholder is followed with the shape of helix the periphery wall of the cutterhead body is arranged in proper order, the helix angle of helix by the bottom of the cutterhead body to the top increase of the cutterhead body. Because the helix angle increase of the helix of formation is arranged to a plurality of toothholders, the pick that is located cutterhead body top has increased the axial interval in right amount, has improved the intensive degree of cutterhead top pick, is favorable to in time getting rid of of cut detritus for it is better that the effect of expecting is arranged to the cutterhead, because it is smooth and easy to arrange the material, can also improve the cut efficiency of cutterhead, reduces the wearing and tearing of pick and toothholder.
Description
Technical field
The utility model relates to the drilling equipment field of soil layer or rock, particularly a kind of cutting head of roadheader and development machine.
Background technology
Development machine is applicable to tunnel, coal petrography tunnel, the driving of underground construction and exploitation.Cutting head of roadheader is as the core work mechanism of development machine, its cutting power accounts for 70% ~ 80% of development machine complete machine power, its performance quality directly determines the quality of development machine performance, and the arrangement parameter of the pick of cutterhead all plays a key effect to the load fluctuation of cutterhead, specific energy of cutting, complete machine stability, has significant impact to the performance of development machine.
In prior art, the arrangement mode of the lead angles such as cutting head of roadheader major part employing, minority cutterhead is in order to reduce the wearing and tearing of top pick, and lead angle arrangement mode falls in employing etc.
Fig. 1 is the structural representation of the first cutting head of roadheader in prior art.Illustrated therein is that notification number is CN201433764Y, a kind of cutting head of roadheader disclosed in Chinese patent that utility model name is called " a kind of cutterhead for longitudinal shaft type development machine ".
As shown in Figure 1, the body of the cutting head 101 of this cutting head of roadheader 100 is divided into conical section, spherical crown section and planar section three part.The body of the cutting head 101 is welded with multiple pick-shaped cutters 103 and the toothholder 102 of helically the linear alignment.The crown of pick-shaped cutter 103 is distributed on the body of the cutting head in the mode of helix.Wherein, pick-shaped cutter 103 the lead angle cylindro-conical helix 104 such as crown edge, etc. lead angle spheric helix 105 and snail line be arranged in order.Equal with spherical crown section lead angle at cylindrical section, planar section is that snail line is arranged.On same helix, pick becomes equal circumference angle to distribute, and namely on helix, the crown of adjacent pick is all equal with the circumferential angle of distribution of crown, and circumferential angle of distribution is 20 ° ~ 50 °.Helix is 2 or 3.
Fig. 2 is the structural representation of the second cutting head of roadheader in prior art.Illustrated therein is that publication number is CN103266890A, denomination of invention a kind of cutting head of roadheader disclosed in the Chinese patent application of " cutting head of roadheader and development machine ".
As shown in Figure 2, this cutting head of roadheader 200 comprises the body of the cutting head, toothholder 201, pick 202, and the periphery wall of the body of the cutting head comprises cylindrical section 203, conical section 204 and arc section 205.Toothholder 201 is arranged at the periphery wall of the body of the cutting head with the shape of helix, and lead angle is reduced to top gradually by bottom.
Realizing in process of the present utility model, inventor finds that above prior art exists following weak point:
Cutting head of roadheader top design shown in Fig. 1 is flat shape, intensive in this region pick arrangement, although it is stressed to reduce pick to a certain extent, but plane pick arrangement form, is unfavorable for the derivation with landwaste of creeping into of cutterhead, when cutterhead creeps into, landwaste easily blocks the gap between pick, increase the cutting resistance of cutterhead, affect the cutting efficiency of cutterhead, and the wearing and tearing of pick and toothholder are larger.
In cutting head of roadheader shown in Fig. 2, its the body of the cutting head is designed to cylindrical section, conical section and arc section, pick is distributed on the body of the cutting head in the form of helical lines, lead angle is successively decreased from bottom to top successively, make cutterhead top cut parameter very dense, be unfavorable for equally deriving by the landwaste cut down, affect the cutting efficiency of cutterhead, and the wearing and tearing of pick and toothholder be larger.
Utility model content
The purpose of this utility model is to provide a kind of cutting head of roadheader and development machine, is intended to the timely eliminating being beneficial to cut landwaste, makes the effect of cutterhead discharge better.
The utility model first aspect provides a kind of cutting head of roadheader, the pick comprising the body of the cutting head, be arranged at the toothholder on described the body of the cutting head and be arranged on described toothholder, multiple described toothholder is arranged in order with the periphery wall of the shape of helix along described the body of the cutting head, and the lead angle of described helix is increased to the top of described the body of the cutting head by the bottom of described the body of the cutting head.
Further, described helix comprises the N number of helical segment connected successively from the bottom of described the body of the cutting head to top, N be more than or equal to 2 natural number, wherein, the lead angle of each helical segment is constant, and in every two sections of adjacent helical segments, the lead angle of superposed helical segment is greater than the lead angle of the helical segment being positioned at bottom.
Further, N=3.
Further, described the body of the cutting head comprises the cylindrical section, conical section and the spherical crown section that set gradually from the bottom of described the body of the cutting head to top, the spherical crown section spiral line section that described N number of helical segment comprises the cylindrical section helical segment formed by the multiple toothholders be positioned on described cylindrical section, the conical section helical segment formed by the multiple toothholders be positioned in described conical section and formed by the multiple toothholders be positioned in described spherical crown section.
Further, the lead angle of described helix is increased to the top of described the body of the cutting head gradually by the bottom of described the body of the cutting head.
Further, described cutterhead also comprises guide cylinder, and described guide cylinder is fixedly connected on the below of described the body of the cutting head.
Further, described cutterhead also comprises stock guide, and described stock guide is arranged continuously with the periphery wall of the shape of helix along described the body of the cutting head.
Further, described cutterhead also comprises internal spline, and described the body of the cutting head comprises the splined hole coordinated with described internal spline.
Further, described the body of the cutting head comprises runner, and described cutterhead also comprises the multiple water spouts with described flow passage.
Further, described toothholder comprises installing hole, described pick comprises construction section and is arranged at the shaft shoulder and the draw-in groove at described construction section two ends respectively, described construction section and described installing hole matched in clearance, the described shaft shoulder coordinates with an axial end of described installing hole, described cutterhead also comprises elastic collar, and described elastic collar to be installed in described draw-in groove and to coordinate with another axial end of described installing hole.
Further, the scope of described lead angle is 13 ° ~ 25 °.
Further, the scope being positioned at the circumference declinate of adjacent two picks on same helix is 22 ° ~ 48 °.
The utility model second aspect provides a kind of development machine, comprises cutterhead, the cutting head of roadheader of described cutting head of roadheader according to any one of the utility model first aspect.
The cutting head of roadheader provided based on the utility model and development machine, the lead angle of the helix that multiple toothholder is formed is increased to the top of the body of the cutting head by the bottom of the body of the cutting head.Due to the lead angle increase of the helix that multiple toothholder arrangement is formed, the pick being positioned at the body of the cutting head top adds axial spacing in appropriate amount, improve the dense degree of cutterhead top pick, be conducive to the timely eliminating of cut landwaste, make the effect of cutterhead discharge better.Further, because discharge is smooth and easy, the cutting efficiency of cutterhead can be improved, reduce the wearing and tearing of pick and toothholder.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present utility model, further feature of the present utility model and advantage thereof will become clear.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the first cutting head of roadheader in prior art.
Fig. 2 is the structural representation of the second cutting head of roadheader in prior art.
Fig. 3 is the structural representation of the cutting head of roadheader of the utility model embodiment.
Fig. 4 is the plan structure schematic diagram of Fig. 3.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the utility model and application or use.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit scope of the present utility model.Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing manual.In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
For convenience of description, here can usage space relative terms, as " ... on ", " in ... top ", " at ... upper surface ", " above " etc., be used for the spatial relation described as a device shown in the figure or feature and other devices or feature.Should be understood that, space relative terms is intended to comprise the different azimuth in use or operation except the described in the drawings orientation of device.Such as, " in other devices or structure below " or " under other devices or structure " will be positioned as after if the device in accompanying drawing is squeezed, being then described as the device of " above other devices or structure " or " on other devices or structure ".Thus, exemplary term " in ... top " can comprise " in ... top " and " in ... below " two kinds of orientation.This device also can other different modes location (90-degree rotation or be in other orientation), and relatively describe space used here and make respective explanations.
Fig. 3 is the structural representation of the cutting head of roadheader of the utility model embodiment.Fig. 4 is the plan structure schematic diagram of Fig. 3.As shown in Figure 3 and Figure 4, the cutting head of roadheader of the utility model embodiment pick 7 that comprises the body of the cutting head 1, be arranged at the toothholder 6 on the body of the cutting head 1 and be arranged on toothholder 6.Multiple toothholder 6 is arranged in order with the periphery wall of the shape of helix along the body of the cutting head 1.The lead angle of helix is increased to the top of the body of the cutting head 1 by the bottom of the body of the cutting head 1.
The lead angle arranging the helix formed due to multiple toothholder 6 increases, the pick being positioned at the body of the cutting head top adds axial spacing in appropriate amount, improve the dense degree of cutterhead top pick, be conducive to the timely eliminating of cut landwaste, make the effect of cutterhead discharge better.Further, because discharge is smooth and easy, the cutting efficiency of cutterhead can be improved, reduce the wearing and tearing of pick and toothholder.
In addition, because the pick distribution beyond the body of the cutting head 1 top is relatively intensive, cutterhead operation under yaw operating mode is conducive to.
Toothholder 6 and pick 7 can be arranged by many helixes.The initial angle of many helixes is different, and the shape of each helix is identical.The starting point of many helixes divides the circumference of the body of the cutting head 1 at place equally.As shown in Figure 3 and Figure 4, in the present embodiment, toothholder 6 and pick 7 are arranged by 3 helixes, and every bar transversal arranges a pick 7.
Helix comprises the N number of helical segment connected successively from the bottom of the body of the cutting head 1 to top, N be more than or equal to 2 natural number.Wherein, the lead angle of each helical segment is constant, and in every two sections of adjacent helical segments, the lead angle of superposed helical segment is greater than the lead angle of the helical segment being positioned at bottom.
Due to multiple toothholder 6, to arrange the lead angle segmentation of the helix formed equal and increase successively, N section spiral line section connects successively and forms continuous print helix, such arrangement mode is increasing the axial spacing of cutterhead top pick in appropriate amount, make cutterhead discharge effective, while the wearing and tearing of pick and toothholder can be reduced, make the pick 7 on toothholder 6 that every section spiral line section distributes and toothholder 6 stressed relatively uniform, be beneficial to the wearing and tearing reducing pick and toothholder, be beneficial to cutterhead steady operation.
In the present embodiment particularly, helix comprises three helical segments, i.e. N=3 connecting successively from the bottom of the body of the cutting head 1 to top.
As shown in Figure 3, the body of the cutting head 1 comprises the cylindrical section 11, conical section 12 and the spherical crown section 13 that set gradually from the bottom of the body of the cutting head 1 to top.Wherein, cylindrical section 11 and conical section 12 are applicable to the yaw operating mode of cutterhead, and spherical crown section 13 is applicable to the drilling condition of cutterhead.
The spherical crown section spiral line section that aforementioned three helical segments comprise the cylindrical section helical segment formed by the multiple toothholders 6 be positioned on cylindrical section 11, the conical section helical segment formed by the multiple toothholders 6 be positioned in conical section 12 and formed by the multiple toothholders 6 be positioned in spherical crown section 13.The lead angle of its middle cylindrical section helical segment is constant, and the lead angle of conical section helical segment is constant, and the lead angle of spherical crown section spiral line section is constant.The lead angle of conical section helical segment is greater than the lead angle of cylindrical section helical segment, and the lead angle of spherical crown section spiral line section is greater than the lead angle of conical section helical segment.
The cutterhead of the present embodiment is in terms of existing technologies, more at the pick that can arrange of cylindrical section 11 and conical section 12, is conducive to cutterhead operation under yaw operating mode.
As shown in Figure 3, cutterhead also comprises guide cylinder 3, and guide cylinder 3 is connected to the bottom of the body of the cutting head 1.In the present embodiment, guide cylinder 3 is the concentric cylindrical tube arranged with the body of the cutting head 1, and the external diameter of guide cylinder 3 is identical with the external diameter of the cylindrical section 11 of the body of the cutting head 1.
The body of the cutting head 1 arranges with guide cylinder 3 split the set-up mode be fixedly connected with again, being beneficial to according to the stressing conditions of the different piece of cutterhead and function is the optimal processing technology that each several part is selected, make the body of the cutting head have good mechanical performance, be beneficial to simultaneously and reduce costs.Such as, the body of the cutting head 1 can adopt casting processing mode, reduces manufacturing cost while meeting welding and impact property.
As shown in Figure 3 and Figure 4, in the present embodiment, cutterhead also comprises stock guide 4, and stock guide 4 is arranged continuously with the periphery wall of the shape of helix along the body of the cutting head 1.The helix that stock guide 4 is also divided into the identical number of helix quantity of arranging with toothholder 6 is arranged in the below of the toothholder 6 of corresponding helix respectively.In the present embodiment, stock guide 4 is arranged by three helixes.Stock guide 4 on every bar helix can segmentation roll forming, then is welded on the body of the cutting head 1, forms the integral blade that continuous light is suitable.
Preferably, as shown in Figure 3, the bottom of stock guide 4 extends to the bottom surface of guide cylinder 3.In addition preferably, the helix that formed of stock guide 4 is identical with the lead angle of the helix that corresponding multiple toothholders are formed.These arrange the discharge being all conducive to landwaste.
The setting that the lead angle of the helix formed by toothholder in the present embodiment is increased to the top of the body of the cutting head 1 by the bottom of the body of the cutting head 1, add the axial spacing of cutterhead top pick in appropriate amount, not only be beneficial to discharge, also help the erection welding of stock guide 4.The setting of stock guide 4 is also conducive to the discharge of landwaste and increases the guide amount of cutterhead, and discharge is effective, thus can improve the cutting efficiency of cutterhead further, reduces the wearing and tearing of pick and toothholder.
As shown in Figure 4, the cutterhead of the present embodiment also comprises internal spline 2, and the body of the cutting head 1 comprises the splined hole coordinated with internal spline 2.Internal spline 2 is driving member.
The body of the cutting head 1, internal spline 2 and guide cylinder 3 adopt split-type design, have that handling ease, precision are high, low cost and other advantages.Such as, internal spline 2 preferably adopts the processing mode of forging, improves its comprehensive mechanical property.Be welded on after internal spline 2 and the body of the cutting head 1, guide cylinder 3 centering on the body of the cutting head 1 during assembling.
In addition, the body of the cutting head 1 of the present embodiment comprises runner, and cutterhead also comprises the multiple water spouts 5 with flow passage.As shown in Figure 3 and Figure 4, water spout 5 is arranged on toothholder 6.In the present embodiment, spherical crown section has multiple pick 7 one_to_one corresponding be provided with water spout 5, the spout of each water spout 5 is towards the pick 7 of correspondence.Such as, in the 8th of Article 1 helix to the 9th to the 12nd pick of the 12nd pick, Article 2 helix and the 9th to the 11st pick of Article 3 helix, a nozzle 5 can be set each pick 7 correspondence.
High-Pressure Water flows through runner and sprays to water spout 5, can reduce temperature during pick 7 cut, reduces pick 7 and weares and teares, and can reduce the dust that cutterhead produces in cutting course, improve working environment.
Toothholder 6 is welded on the body of the cutting head 1.Toothholder 6 comprises installing hole, pick 7 comprises construction section and is arranged at the shaft shoulder and the draw-in groove at construction section two ends respectively, construction section and installing hole matched in clearance, the shaft shoulder coordinates with an axial end of installing hole, cutterhead also comprises elastic collar 8, and elastic collar 8 to be installed in draw-in groove and to coordinate with another axial end of installing hole.During assembling pick 7, the construction section of pick 7 is inserted in the installing hole of toothholder 6, the respective axial end faces of the shaft shoulder of pick 7 and the installing hole of toothholder 6 is fitted, again elastic collar 8 is stuck in the draw-in groove of pick 7, elastic collar coordinates with another axial end of installing hole, thus is fixed in toothholder 6 by pick 7.The matched in clearance that pick 7 and toothholder 6 adopt gap value less, can ensure pick 7 in cutting course steadily and rotation is functional.
Preferably, the scope of the lead angle of the cutterhead of the present embodiment is 13 ° ~ 25 °.
In addition preferably, the scope being positioned at the circumference declinate a of adjacent two picks on same helix is 22 ° ~ 48 °.
The scope of above lead angle and the scope of circumference declinate be through repeatedly calculate and screen draw be best suited for span of the present utility model, within the scope of this, pick can be made to arrange more reasonable, thus obtain preferably combination property in the wearing and tearing of chip removal performance, cutting efficiency and minimizing pick and toothholder.
Cutting line spacing t determines by cutting depth with by character such as the bursting apart property of cut object.
The selection of the concrete numerical value of lead angle, circumference declinate a and cutting line spacing t can be determined according to drilling conditions such as the character of soil layer or rock.
Above embodiment should not limit the utility model.Such as, in a unshowned embodiment, the lead angle of the helix that toothholder also can be made to be formed is increased to the top of the body of the cutting head 1 gradually by the bottom of the body of the cutting head 1.
Known according to above description, the above embodiment tool of the utility model has the following advantages:
1, because this cutterhead adopts the pick arrangement mode from increasing lead angle bottom the body of the cutting head to top, therefore the axial spacing of cutterhead top pick is added in appropriate amount, effectively improve cutterhead top pick dense degree, be conducive to the timely eliminating of cut landwaste, cutterhead discharge is effective, also help the erection welding of stock guide further, the assembling of stock guide is beneficial to and increases cutterhead unit interval guide amount, improves the discharge effect of cutterhead.Because guide is effective, can cutting efficiency be improved, reduce the wearing and tearing of pick and toothholder.
2, the body of the cutting head adopts the assembly of cylindrical section, conical section and spherical crown section, the lead angle of the helix that pick is formed increases from also pressing cylindrical section helical segment, conical section helical segment and the segmentation of spherical crown section spiral line section bottom the body of the cutting head to top, consider creeping into and yaw operating mode of cutterhead, the application life ensure that pick uniform force, cutting efficiency in cutting course are high, pick wearing and tearing are little, extending cutting head of roadheader.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to detailed description of the invention of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (13)
1. a cutting head of roadheader, the pick (7) comprising the body of the cutting head (1), be arranged at the toothholder (6) on described the body of the cutting head (1) and be arranged on described toothholder (6), multiple described toothholder (6) is arranged in order with the periphery wall of the shape of helix along described the body of the cutting head (1), it is characterized in that, the lead angle of described helix is increased to the top of described the body of the cutting head (1) by the bottom of described the body of the cutting head (1).
2. cutting head of roadheader according to claim 1, it is characterized in that, described helix comprises the N number of helical segment connected successively from bottom to the top of described the body of the cutting head (1), N be more than or equal to 2 natural number, wherein, the lead angle of each helical segment is constant, and in every two sections of adjacent helical segments, the lead angle of superposed helical segment is greater than the lead angle of the helical segment being positioned at bottom.
3. cutting head of roadheader according to claim 2, is characterized in that, N=3.
4. cutting head of roadheader according to claim 3, it is characterized in that, described the body of the cutting head (1) comprises the cylindrical section (11) set gradually from bottom to the top of described the body of the cutting head (1), conical section (12) and spherical crown section (13), described N number of helical segment comprises the cylindrical section helical segment formed by the multiple toothholders (6) be positioned on described cylindrical section (11), the conical section helical segment formed by the multiple toothholders (6) be positioned in described conical section (12) and the spherical crown section spiral line section formed by the multiple toothholders (6) be positioned on described spherical crown section (13).
5. cutting head of roadheader according to claim 1, is characterized in that, the lead angle of described helix is increased to the top of described the body of the cutting head (1) gradually by the bottom of described the body of the cutting head (1).
6. cutting head of roadheader according to any one of claim 1 to 5, is characterized in that, described cutterhead also comprises guide cylinder (3), and described guide cylinder (3) is fixedly connected on the below of described the body of the cutting head (1).
7. cutting head of roadheader according to any one of claim 1 to 5, is characterized in that, described cutterhead also comprises stock guide, and described stock guide is arranged continuously with the periphery wall of the shape of helix along described the body of the cutting head (1).
8. cutting head of roadheader according to any one of claim 1 to 5, is characterized in that, described cutterhead also comprises internal spline (2), and described the body of the cutting head (1) comprises the splined hole coordinated with described internal spline (2).
9. cutting head of roadheader according to any one of claim 1 to 5, is characterized in that, described the body of the cutting head (1) comprises runner, and described cutterhead also comprises the multiple water spouts (5) with described flow passage.
10. cutting head of roadheader according to any one of claim 1 to 5, it is characterized in that, described toothholder (6) comprises installing hole, described pick (7) comprises construction section and is arranged at the shaft shoulder and the draw-in groove at described construction section two ends respectively, described construction section and described installing hole matched in clearance, the described shaft shoulder coordinates with an axial end of described installing hole, described cutterhead also comprises elastic collar (8), and described elastic collar (8) to be installed in described draw-in groove and to coordinate with another axial end of described installing hole.
11. cutting head of roadheader according to any one of claim 1 to 5, is characterized in that, the scope of described lead angle is 13 ° ~ 25 °.
12. cutting head of roadheader according to any one of claim 1 to 5, is characterized in that, the scope being positioned at the circumference declinate of adjacent two picks (7) on same helix is 22 ° ~ 48 °.
13. 1 kinds of development machines, comprise cutterhead, it is characterized in that, described cutting head of roadheader is the cutting head of roadheader according to any one of claim 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489122.1U CN204899921U (en) | 2015-07-08 | 2015-07-08 | Entry driving machine cutterhead and entry driving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489122.1U CN204899921U (en) | 2015-07-08 | 2015-07-08 | Entry driving machine cutterhead and entry driving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204899921U true CN204899921U (en) | 2015-12-23 |
Family
ID=54922107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520489122.1U Withdrawn - After Issue CN204899921U (en) | 2015-07-08 | 2015-07-08 | Entry driving machine cutterhead and entry driving machine |
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| Country | Link |
|---|---|
| CN (1) | CN204899921U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840191A (en) * | 2016-05-23 | 2016-08-10 | 上海信搿煤炭机械有限公司 | Cutting head for tunneling machine |
| CN106150493A (en) * | 2015-07-08 | 2016-11-23 | 徐工集团工程机械股份有限公司 | Cutting head of roadheader and development machine |
| CN107461206A (en) * | 2017-09-26 | 2017-12-12 | 辽宁工程技术大学 | A kind of hobboing cutter and the alternatively distributed intensive cutting part of heading machine of pick |
| CN111364988A (en) * | 2020-03-05 | 2020-07-03 | 山西能源学院 | Detachable cutting tool assembly |
-
2015
- 2015-07-08 CN CN201520489122.1U patent/CN204899921U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150493A (en) * | 2015-07-08 | 2016-11-23 | 徐工集团工程机械股份有限公司 | Cutting head of roadheader and development machine |
| CN105840191A (en) * | 2016-05-23 | 2016-08-10 | 上海信搿煤炭机械有限公司 | Cutting head for tunneling machine |
| CN105840191B (en) * | 2016-05-23 | 2019-08-20 | 上海信搿煤炭机械有限公司 | Cutterhead for development machine |
| CN107461206A (en) * | 2017-09-26 | 2017-12-12 | 辽宁工程技术大学 | A kind of hobboing cutter and the alternatively distributed intensive cutting part of heading machine of pick |
| CN107461206B (en) * | 2017-09-26 | 2019-06-04 | 辽宁工程技术大学 | A kind of hobboing cutter and the alternatively distributed intensive cutting part of heading machine of pick |
| CN111364988A (en) * | 2020-03-05 | 2020-07-03 | 山西能源学院 | Detachable cutting tool assembly |
| CN111364988B (en) * | 2020-03-05 | 2022-07-12 | 山西能源学院 | Detachable cutting tool assembly |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151223 Effective date of abandoning: 20190827 |