CN208015462U - The cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven - Google Patents
The cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven Download PDFInfo
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- CN208015462U CN208015462U CN201820165747.6U CN201820165747U CN208015462U CN 208015462 U CN208015462 U CN 208015462U CN 201820165747 U CN201820165747 U CN 201820165747U CN 208015462 U CN208015462 U CN 208015462U
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Abstract
The utility model discloses the cutting part of heading machine driving devices of combination type permanent-magnet linear motor direct-driven, including cutterhead, rotary shaft, the rotary shaft is equipped with rimless combination type permanent-magnet linear synchronous motor, the rimless combination type permanent-magnet linear synchronous motor includes stator module, rotor assembly, the stator module is made of several stator units in sector structure, each stator unit independent control；The stator module is fixedly connected with preceding briquetting and rear briquetting, and the rotor assembly is fixedly mounted on the rotary shaft, and the rotary shaft is equipped with boss.After powering on, rimless combination type permanent-magnet linear synchronous motor driving rotary shaft rotation, and cutterhead is imparted power to by cantilever, to achieve the purpose that broken coal petrography.The utility model is mounted with impeller on the rotary shaft, and heat dissipation effect is more notable, and easy for installation；The relatively original cutting units driving device of the structure of the utility model is simpler, is easily installed, easy to disassemble and equipment maintenance.
Description
Technical field
The utility model is related to development machines more particularly to the cutting part of heading machine of combination type permanent-magnet linear motor direct-driven to drive
Device.
Background technology
In coal industry, driving and back production are the important production links of coal production, and development machine includes mainly development machine
Main body and the cutting units being connected with development machine main body, wherein cutting units include the cutting motor for being connected to development machine main body, with
Cutting speed reducer, pars contractilis, telescopic hydraulic cylinder and the cutterhead with multiple cutting teeth that cutting motor is connected.Cutting is slowed down
The ring flange at device both ends links into an integrated entity with motor and cantilever segment respectively, the transmission shaft in cantilever segment by spline and screw with
Cutting head assembly is connected.Motor through in cutting reducer, cantilever segment transmission shaft driving cutting head assembly rotation cutting coal,
Rock.Cutting units is connected by axis pin with cutterhead lifting cylinder, is connected with cutterhead revolving platform by axis pin.It is lifted in cutterhead
Under oil cylinder pushing, it can be swung up and down around axis pin；It, can be with the left and right swing of cutterhead revolving platform under the promotion of cutterhead angling cylinder.
Such as Chinese patent literature CN201310065479.2 cutting part of heading machine, a kind of cutting part of heading machine, including cut
Cut head, telescopic device, telescopic oil cylinder, cutting speed reducer, cutting motor and cutting units backplate, it is characterised in that：Tunneling machine cutting
There are one power box, telescopic oil cylinder, cutting speed reducer and cutting motors to be installed in power box in portion, power box
Front and back end is connecting flange, and telescopic device is connected with the shell of cutting speed reducer by front end connecting flange, cutting speed reducer
Input terminal and the output end of cutting motor connected by shaft coupling, shell and the power box rear end connecting flange of cutting motor
Connection, the shell of telescopic oil cylinder are fixedly mounted on the inner wall of power box both sides, and cutting units backplate is mounted on power box
On outer wall；The cylinder rod of telescopic oil cylinder is stretched out power box and is connect with telescopic device, and cutterhead is located at the front end of telescopic device.The hair
The cutterhead of bright patent is driven using motor and speed reducer, and this type of drive energy consumption is big, complicated.
Therefore, there is an urgent need for the cutting part of heading machine driving devices of combination type permanent-magnet linear motor direct-driven asks to solve above-mentioned technology
Topic.
Invention content
In view of the above shortcomings of the prior art, the purpose of this utility model is to provide combination type permanent-magnet linear motor direct-driven
Cutting part of heading machine driving device.
The utility model is achieved by the following technical programs.
The cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, including cutterhead, rotary shaft, the rotation
Shaft is equipped with rimless combination type permanent-magnet linear synchronous motor, and the rimless combination type permanent-magnet linear synchronous motor includes stator pack
Part, rotor assembly, the stator module are made of several stator units in sector structure, and each stator unit is independently controlled
System, the stator unit include stator core and the stator winding that is wrapped on stator core；The stator module and preceding briquetting
It is fixedly connected with rear briquetting, the rotor assembly is fixedly mounted on the rotary shaft, and the rotary shaft is equipped with boss.
The stator unit is the stator unit of fan-shaped arc structure or the stator unit of fan-shaped disk-like structure.
After powering on, the driving rotary shaft rotation of rimless combination type permanent-magnet linear synchronous motor, and by cantilever by power
Cutterhead is passed to, to achieve the purpose that broken coal petrography.
Preferentially, the rotary shaft is mounted on the preceding briquetting and the rear briquetting by first bearing and second bearing
On.
Preferentially, the rotor assembly includes magnet steel substrate, and the magnet steel substrate is circumferentially distributed on the convex of the rotary shaft
On platform.It is used the boss of rotary shaft as rotor pedestal so that rotary shaft combines together with motor, and transmission power is more stable, energy
Smaller is lost in consume.
Magnet steel substrate for the stator unit of the fan-shaped arc structure is arc magnet steel substrate；For the fan-shaped plate-like knot
The magnet steel substrate of the stator unit of structure is dish type magnet steel substrate.
Preferentially, the first impeller is equipped between the preceding briquetting and one end of the boss；It is described after briquetting with it is described convex
The second impeller is equipped between the other end of platform.It is mainly used for the heat dissipation work of rimless combination type permanent-magnet linear synchronous motor, it is rimless
Combination type permanent-magnet linear synchronous motor will produce a large amount of heat at runtime, if cannot radiate in time can seriously affect electricity
The service life of machine and there are certain danger.
Preferentially, first impeller includes the first blade, first impeller disk, and first blade is distributed on the first impeller
On disk；Second impeller includes the second blade, second impeller disk, and second blade is distributed on second impeller disk；It is described
First impeller is fixedly mounted on by first impeller disk in the rotary shaft, and second impeller is solid by second impeller disk
Dingan County is in the rotary shaft；First blade and second direction blade on the contrary, first impeller is used for air inlet,
The second impeller exhaust.It is intended that increasing the circulation of air, increase heat dissipation effect.Due to the first impeller and the second leaf
Wheel is directly installed in the rotary shaft, while the no frame permanent magnet synchronous motor drives the rotary shaft rotation
First impeller, the second impeller can also rotate therewith, and reduce the power source of existing fan cooling, and the first blade and the second leaf
Piece is reversed, and in the rotary shaft rotation process, first blade plays the role of air inlet, and the second blade plays exhaust
Effect, realize the effect that cools down to no frame permanent magnet synchronous motor.
Preferentially, the stator module further includes stator base, the preceding briquetting and it is described after briquetting respectively with it is described fixed
Sub-base is fixedly connected.
Stator base for installing the stator unit for being in fan-shaped arc structure is arcuate stator pedestal, for installing in fan
The stator base of the stator unit of shape disk-like structure is dish type stator base.
Preferentially, the stator base is equipped with ventilation hole, the position of the ventilation hole and first impeller and described
The position of second impeller is corresponding, and Air Filter is equipped in the ventilation hole.Ventilation hole makes with the first impeller and the cooperation of the second impeller
With, increase the circulation of air and play detour flow, the air come in from the ventilation hole respectively bypass first blade,
Second blade, to further increase heat dissipation effect, and the Air Filter in the ventilation hole effectively prevents dust and enters nothing
The inside of frame magneto avoids damage of the dust to motor, to increase the service life of motor.
Preferentially, the first bearing fixes the circumferential position in the rotary shaft by the preceding briquetting and the first head cover
It sets, the second bearing is fixed on the circumferential position in the rotary shaft by the rear briquetting, the second head cover and stop nut.
The sector stator unit of arc structure, arcuate stator pedestal, arc magnet steel substrate and for installing arc magnetic
The boss of steel substrate is combined as rimless combination type permanent-magnet and synchronizes arc linear motor；The stator unit of the sector disk-like structure,
Dish type stator base, dish type magnet steel substrate and rimless combination type permanent-magnet is combined as installing the boss of dish type magnet steel substrate synchronizes
Dish type linear motor.
Compared with prior art, the beneficial effects of the utility model are：1, using rimless combination type permanent-magnet synchronous linear
Motor substitutes former driving device, and midway drive link is omitted, reduces energy loss, increases transfer motion power；2, it is rotating
Impeller is mounted on axis, heat dissipation effect is more notable, and easy for installation, reduces power source, with no frame permanent magnet synchronous motor
Synchronous, when no frame permanent magnet synchronous motor, which powers on, to bring into operation, impeller also begins to operate, and synchronizes and carries out heat dissipation work；
3, the relatively original cutting units driving device of the structure of the utility model is simpler, is easily installed, easy to disassemble and equipment
Maintenance.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art do simple introduction, it should be apparent that, it is described below
In attached drawing be some embodiments of the utility model, for those of ordinary skill in the art, do not paying creative labor
Under the premise of dynamic, other drawings may also be obtained based on these drawings.
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the end view drawing of rimless combination type permanent-magnet linear synchronous motor.
Fig. 3 is the structural schematic diagram of the stator unit of fan-shaped arc structure.
Fig. 4 is the structural schematic diagram of arc magnet steel substrate.
Fig. 5 is the structural schematic diagram of embodiment 2.
Fig. 6 is the structural schematic diagram of the first impeller.
Fig. 7 is the schematic diagram of the first direction blade.
Fig. 8 is the schematic diagram of the second direction blade.
Fig. 9 is the structural schematic diagram of embodiment 3.
Figure 10 is the structural schematic diagram of the stator unit of fan-shaped disk-like structure.
Figure 11 is the structural schematic diagram of dish type magnet steel substrate.
Figure 12 is the structural schematic diagram of embodiment 4.
In figure：1, cutterhead；2, rotary shaft；201, boss；3, rimless combination type permanent-magnet linear synchronous motor；31, stator
Component；311, the stator unit of fan-shaped arc structure；312, arcuate stator pedestal；313, ventilation hole；3131, Air Filter；314,
The stator unit of fan-shaped disk-like structure；315, dish type stator base；32, rotor assembly；321, arc magnet steel substrate；322, dish type
Magnet steel substrate；4, preceding briquetting；5, rear briquetting；6, first bearing；7, second bearing；8, the first impeller；801, the first blade；802,
First impeller disk；9, the second impeller；901, the second blade；902, second impeller disk；10, the first head cover；11, the second head cover；12,
Stop nut；13, cantilever；14, rimless combination type permanent-magnet synchronizes arc linear motor；15, rimless combination type permanent-magnet synchronizes dish type
Linear motor.
Specific implementation mode
Clear, complete description is carried out to the technical solution of various embodiments of the utility model below with reference to attached drawing, it is clear that
Described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.It is new based on this practicality
The embodiment of type, those of ordinary skill in the art's obtained all other implementation without making creative work
Example, belongs to the range that the utility model is protected.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figs 1-4, the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, including cutterhead 1,
Rotary shaft 2, the rotary shaft 2 are equipped with rimless combination type permanent-magnet linear synchronous motor 3, the rimless combination type permanent-magnet synchronizing direct
Line motor 3 includes stator module 31, rotor assembly 32, and the stator module 31 is by several stator units in fan-shaped arc structure
311 compositions, 311 independent control of stator unit of each fan-shaped arc structure, the stator unit of the sector arc structure
311 include stator core and the stator winding being wrapped on stator core；The stator module 31 and preceding briquetting 4 and rear briquetting 5
It is fixedly connected, the rotor assembly 32 is fixedly mounted in rotary shaft 2.
Specifically, the rotary shaft 2 is mounted on the preceding briquetting 4 and the rear pressure by first bearing 6 and second bearing 7
On block 5.
The rotor assembly 32 includes arc magnet steel substrate 321, and the arc magnet steel substrate 321 is circumferential to be distributed on the rotation
On the boss 201 of shaft 2.Rotor pedestal by the boss 201 of rotary shaft 2 as rimless combination type permanent-magnet linear synchronous motor
With so that rotary shaft 2 combines together with rimless combination type permanent-magnet linear synchronous motor, and transmission power is more stable, and energy loss is more
It is small.
The stator module 31 further includes arcuate stator pedestal 312, the preceding briquetting 4 and it is described after briquetting 5 respectively with institute
Arcuate stator pedestal 312 is stated to be fixedly connected.
The first bearing 6 fixes the circumferential position in the rotary shaft 2 by 4 and first head cover 10 of the preceding briquetting,
The second bearing 7 is fixed on the circumferential direction in the rotary shaft 2 by the rear briquetting 5, the second head cover 11 and stop nut 12
Position.
The sector stator unit 311 of arc structure, arcuate stator pedestal 312, arc magnet steel substrate 321 are combined as
Rimless combination type permanent-magnet synchronizes arc linear motor.The rimless combination type permanent-magnet synchronizes the stator module 31 of arc linear motor
It is made of the stator unit 311 of 2 groups or more of fan-shaped arc structure, is preferentially selected as 6 groups.
After powering on, the stator unit 311 of the sector arc structure is that the arc magnet steel substrate 321 provides one
The magnetic field of radial rotary, the rimless combination type permanent-magnet synchronizes arc linear motor and the rotary shaft 2 is driven to rotate, and passes through institute
It states cantilever 13 and imparts power to the cutterhead 1, to achieve the purpose that broken coal petrography.
Embodiment 2
This as viewed in figures 5-8, the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, the present embodiment with
The principle of embodiment 1 is similar with structure, with embodiment 1 difference lies in：One end of the preceding briquetting 4 and the boss 201 it
Between be equipped with the first impeller 8；The second impeller 9 is equipped with after described between briquetting 5 and the other end of the boss 201.First leaf
Wheel 8 and second impeller 9 are directly fixedly mounted in the rotary shaft 2.It is intended that being mainly used for rimless combined type forever
The heat dissipation work of magnetic-synchro linear motor, rimless combination type permanent-magnet linear synchronous motor will produce a large amount of heat at runtime,
The service life of motor can be seriously affected if cannot radiate in time and there are certain danger.
First impeller 8 includes the first blade 801, first impeller disk 802, and first blade 801 is distributed on first
On the impeller disk 802；Second impeller 9 includes the second blade 901, second impeller disk 902, and second blade 901 is distributed on
On second impeller disk 902；First blade 801 and 901 direction of the second blade on the contrary, first impeller 8 be used for into
Gas, second impeller 9 are vented.First impeller 8 is fixedly mounted on by first impeller disk 802 in the rotary shaft 2, institute
The second impeller 9 is stated to be fixedly mounted in the rotary shaft 2 by second impeller disk 902.First impeller 8 and the second impeller 9 are installed
Main purpose be increase air circulation, increase heat dissipation effect.Since the first impeller 8 and the second impeller 9 are to be mounted directly
In the rotary shaft 2, while the no frame permanent magnet synchronous motor drives the rotary shaft 2 to rotate the first impeller 8,
Second impeller 9 can also rotate therewith, and reduce the power source of existing fan cooling, and the first blade 801 and the second blade 901
It is reversed, in 2 rotation process of the rotary shaft, first blade 801 plays the role of air inlet, and the second blade 901 rises
To the effect of exhaust, the effect to cool down to no frame permanent magnet synchronous motor is realized.
The arcuate stator pedestal 312 is equipped with ventilation hole 313, the position of the ventilation hole 313 and first impeller 8
And the position of second impeller 9 is corresponding.The ventilation hole 313 makes with first impeller 8 and second impeller 9 cooperation
With, increase the circulation of air and play detour flow, the air come in from the ventilation hole 313 respectively bypass first leaf
Piece 801, the second blade 901, to further increase heat dissipation effect, and the Air Filter 3131 in the ventilation hole 313 is effective
It prevents dust to enter the inside of no frame magneto, avoids damage of the dust to motor, to increase the longevity of motor
Life.
Embodiment 3
As shown in figs. 9-11, the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, the present embodiment with
The principle of embodiment 1 or embodiment 2 is similar with structure, with embodiment 1 or embodiment 2 difference lies in：The rimless combined type
Permanent magnetic linear synchronous motor 3 includes stator module 31, rotor assembly 32, and the stator module 31 is by several in fan-shaped disk-like structure
Stator unit 314 form, 314 independent control of stator unit of each fan-shaped disk-like structure, the sector disk-like structure
Stator unit 314 include stator core and the stator winding that is wrapped on stator core.
The rotor assembly 32 includes dish type magnet steel substrate 322, and the dish type magnet steel substrate 322 is circumferential to be distributed on the rotation
On the boss 201 of shaft 2.
The stator module 31 further includes dish type stator base 315, the preceding briquetting 4 and it is described after briquetting 5 respectively with institute
Dish type stator base 315 is stated to be fixedly connected.
The sector stator unit 314 of disk-like structure, dish type stator base 315, dish type magnet steel substrate 322 are combined as
Rimless combination type permanent-magnet synchronizes dish type linear motor.The rimless combination type permanent-magnet synchronizes the stator module 31 of dish type linear motor
It is made of the stator unit 314 of 2 groups or more of fan-shaped disk-like structure, is preferentially selected as 6 groups.
After powering on, the stator unit 314 of the sector disk-like structure is that the dish type magnet steel substrate 322 provides one
The magnetic field of axial-rotation, the rimless combination type permanent-magnet synchronizes dish type linear motor 15 and the rotary shaft 2 is driven to rotate, and passes through
The cantilever 13 imparts power to the cutterhead 1, to achieve the purpose that broken coal petrography.
Embodiment 4
As shown in figure 12, the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, the present embodiment and reality
It applies example 1 or the principle of embodiment 2 or embodiment 3 is similar with structure, the difference with embodiment 1 or embodiment 2 or embodiment 3 exists
In：The rimless combination type permanent-magnet linear synchronous motor is that rimless combination type permanent-magnet synchronizes arc linear motor 14 and rimless combination
The combination of formula permanent-magnet synchronous dish type linear motor 15.
The arcuate stator pedestal 312, dish type stator base 315 are fixedly connected.
After powering on, the stator unit 311 of the sector arc structure is that the arc magnet steel substrate 321 provides one
The magnetic field of radial rotary；The stator unit 314 of the sector disk-like structure is that the dish type magnet steel substrate 322 provides a circumferential direction
The magnetic field of rotation；The rimless combination type permanent-magnet synchronizes the dish type straight-line electric synchronous with rimless combination type permanent-magnet of arc linear motor 14
Machine 15 drives the rotary shaft 2 to rotate jointly, and imparts power to the cutterhead 1 by the cantilever 13, to reach
The purpose of broken coal petrography.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It can still modify to the technical solution recorded in previous embodiment, either to which part or all technical features
Carry out equivalent replacement；And these modifications or replacements, the utility model embodiment that it does not separate the essence of the corresponding technical solution
Technical solution.
Claims (8)
1. the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, including cutterhead, rotary shaft, feature exist
In the rotary shaft is equipped with rimless combination type permanent-magnet linear synchronous motor, the rimless combination type permanent-magnet linear synchronous motor
Including stator module, rotor assembly, the stator module is made of several stator units in sector structure, each stator
Unit independent control, the stator unit include stator core and the stator winding that is wrapped on stator core；The stator pack
Part is fixedly connected with preceding briquetting and rear briquetting, and the rotor assembly is fixedly mounted on the rotary shaft, and the rotary shaft is equipped with convex
Platform.
2. the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, feature exist according to claim 1
In the rotary shaft is mounted on by first bearing and second bearing on the preceding briquetting and the rear briquetting.
3. the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, feature exist according to claim 1
In the rotor assembly includes magnet steel substrate, and the magnet steel substrate is circumferentially distributed on the boss of the rotary shaft.
4. the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, feature exist according to claim 1
In equipped with the first impeller between the preceding briquetting and one end of the boss；After described the other end of briquetting and the boss it
Between be equipped with the second impeller.
5. the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, feature exist according to claim 4
In first impeller includes the first blade, first impeller disk, and first blade is distributed on first impeller disk；Described
Two impellers include the second blade, second impeller disk, and second blade is distributed on second impeller disk；First impeller passes through
First impeller disk is fixedly mounted in the rotary shaft, and second impeller is fixedly mounted on described by second impeller disk
In rotary shaft；First blade is with second direction blade on the contrary, first impeller is used for air inlet, second impeller
Exhaust.
6. the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, feature exist according to claim 1
In the stator module further includes stator base, and the preceding briquetting and the rear briquetting are fixed with the stator base connect respectively
It connects.
7. the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, feature exist according to claim 5
In the stator base is equipped with ventilation hole, the position of the position of the ventilation hole and first impeller and second impeller
It sets corresponding, Air Filter is equipped in the ventilation hole.
8. the cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven, feature exist according to claim 2
In the first bearing fixes the circumferential position in the rotary shaft, second axis by the preceding briquetting and the first head cover
Hold the circumferential position being fixed on by the rear briquetting, the second head cover and stop nut in the rotary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820165747.6U CN208015462U (en) | 2018-01-31 | 2018-01-31 | The cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820165747.6U CN208015462U (en) | 2018-01-31 | 2018-01-31 | The cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven |
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| Publication Number | Publication Date |
|---|---|
| CN208015462U true CN208015462U (en) | 2018-10-26 |
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ID=63884894
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| CN201820165747.6U Active CN208015462U (en) | 2018-01-31 | 2018-01-31 | The cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199510A (en) * | 2018-01-31 | 2018-06-22 | 湖北环电磁装备工程技术有限公司 | The cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven |
-
2018
- 2018-01-31 CN CN201820165747.6U patent/CN208015462U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199510A (en) * | 2018-01-31 | 2018-06-22 | 湖北环电磁装备工程技术有限公司 | The cutting part of heading machine driving device of combination type permanent-magnet linear motor direct-driven |
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