CN205778872U - A kind of ripping device of sandstone machine - Google Patents
A kind of ripping device of sandstone machine Download PDFInfo
- Publication number
- CN205778872U CN205778872U CN201620523812.9U CN201620523812U CN205778872U CN 205778872 U CN205778872 U CN 205778872U CN 201620523812 U CN201620523812 U CN 201620523812U CN 205778872 U CN205778872 U CN 205778872U
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- Prior art keywords
- gear
- forward spindle
- saw blade
- swing arm
- rip cutting
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Abstract
This utility model discloses the ripping device of a kind of sandstone machine, includes total driving assembly and rip cutting assembly；Total driving assembly includes power source and power shaft；Rip cutting assembly includes driving gear set, forward spindle and rip cutting saw blade；Connecting between power shaft and forward spindle and have a forward spindle case, driving gear set is installed in forward spindle case and the two is configured to gear driven type swing arm, this gear driven type swing arm connects have and drives its swing arm cylinder component swung.This utility model always drives assembly to use fixed external installation, it is made split dexterously with rip cutting saw blade by driving gear set and designs, the lifting action design of rip cutting saw blade is avoided always driving assembly to make independent design, driving gear set is designed as dexterously swing arm structure, rip cutting saw blade need to be i.e. driven to swing up and down while rotating by a swing arm cylinder component in this, longitudinally cutting to complete；Complete machine structure is succinct, reasonable in design, manipulation simplicity, brings longitudinal cutting operation the most reliable, high efficiency simultaneously.
Description
Technical field
This utility model relates to a kind of stone mining equipment, specifically refers to the ripping of a kind of sandstone machine
Device.
Background technology
Stone mining equipment is a kind of by after mine stones piecemeal and the mechanized equipment that is transported out, existing
The mechanical mining of stone material is the most universal, has efficient energy-saving, yield rate height, destroys little to mine
Etc. feature.The structure of stone mining equipment mainly includes railcar and the saw being located in railcar at present
Thermomechanical components, sawing machine component divides crosscutting and rip cutting two kinds.
Ripsaw thermomechanical components, its length sawing sheet goes back oscilaltion while rotating, longitudinally cutting to complete.
Ripsaw thermomechanical components has needed to rotate and lifting bidimensional action, currently for this bidimensional of rip cutting saw
Movements design all uses rotary drive mechanism and saw blade unitary design, i.e. grasps in the lifting carrying out saw blade
During work, rotary drive mechanism synchronization action therewith, first to the associated mechanisms realizing descending operation
Performance requirement is higher, the most also can affect the efficiency of descending operation, precision, and even affect complete machine
Runnability.
In consideration of it, the problems referred to above are furtherd investigate by inventor, and a kind of sand is innovatively proposed
The ripping device of rock machine, this case thus produces.
Utility model content
The purpose of this utility model is to provide the ripping device of a kind of sandstone machine, rotation is driven
Assembly and saw blade split dexterously design, bring simple for structure, manipulate easy, the most reliable, efficiently
The advantages such as rate.
In order to reach above-mentioned purpose, solution of the present utility model is:
The ripping device of a kind of sandstone machine, includes total driving assembly and rip cutting assembly；Total driving
Assembly includes the power source and power shaft being mutually in transmission connection；Rip cutting assembly include driving gear set,
Forward spindle and rip cutting saw blade, driving gear set is in transmission connection between power shaft and forward spindle, ripsaw
Sheet is arranged on forward spindle；Connect between power shaft and forward spindle and have a forward spindle case, driving gear set
It is installed in forward spindle case and the two is configured to a gear driven type swing arm with power shaft as fulcrum,
Connect in this gear driven type swing arm to have and drive its swing arm cylinder component swung.
Each group gear of described driving gear set is setting in one line, and the gear of forward end sinks
Arranging, the corresponding gear driven type swing arm constituted has the front galianconism of the rear long-armed and past bottom, swing arm oil
Cylinder component correspondence is connected to rear long-armed position.
The rear end of described forward spindle case is connected with power shaft by rear bearing assembly, the front end of forward spindle case
Being connected with forward spindle by fore bearing assembly, driving gear set is integrally installed on by gear-bearing assembly
On forward spindle case.
Described power shaft and rear bearing inter-module are provided with oil seal, and forward spindle is provided with fore bearing inter-module
Oil seal.
Described driving gear set includes input gear, intermediate gear assemblies and front gear；Input gear
Being arranged on power shaft, front gear is arranged on forward spindle, and intermediate gear assemblies is in transmission connection in input
Between gear and front gear.
Described intermediate gear assemblies includes at least two group gear shafts arranged in parallel and the most extremely
Few two groups of idler gears, this at least two groups idler gear transmission successively is engaged.
Described intermediate gear assemblies also includes double reduction gearing group, and this double reduction gearing group is by greatly
The dislocation of little gear is in transmission connection composition.
Described forward spindle is provided with the folder cutterhead for installing rip cutting saw blade；This folder cutterhead is provided with several,
Set up the two ends at forward spindle separately, arranged by separates between two the most adjacent folder cutterheads.
Described swing arm cylinder component is double head oil cylinder, and this double head oil cylinder has cylinder body and two ends are all stretched out
The piston rod of cylinder body；Cylinder body is rotatably connected in associated supports, and the bottom of piston rod rotates even
Being connected on forward spindle case, the upper end of piston rod is provided with adjusting nut.
Described rip cutting saw blade is also equipped with saw blade cover, and this saw blade cover includes fixing cover, movable guard and turns over
Turn oil cylinder；Fixing cover is fixedly installed on rip cutting assembly by clip, and movable guard is rotatably connected on solid
The top of fixed cover, overturning oil cylinder is connected between fixing cover and movable guard, to drive movable guard to overturn
Action.
After using such scheme, the ripping device of this utility model a kind of sandstone machine, relative to existing
There is having the beneficial effects that of technology: total driving assembly uses fixed external installation, itself and rip cutting saw blade
Making split dexterously by driving gear set to design, rip cutting assembly realizes rip cutting by driving gear set
Saw blade drives being in transmission connection of assembly with total.The lifting action design of rip cutting saw blade avoids always driving assembly
And make independent design, and driving gear set is designed as dexterously swing arm structure, need to be by a pendulum in this
Arm cylinder component can drive rip cutting saw blade to swing up and down, to complete while rotating the most simply
Longitudinally cutting.The whole apparatus structure of this utility model is succinct, reasonable in design, manipulation simplicity, carries simultaneously
Carry out longitudinal cutting operation the most reliable, high efficiency.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the ripping device of this utility model sandstone machine；
Fig. 2 is the installation diagram of the rip cutting assembly of this utility model sandstone machine；
Fig. 3 is the exploded view of Fig. 2；
Fig. 4 is the sectional view of the power shaft position in Fig. 2；
Fig. 5 is the sectional view of the forward spindle position in Fig. 2；
Fig. 6 is the schematic diagram of swing arm cylinder component；
Fig. 7 is the schematic diagram of saw blade cover；
Fig. 8 is the axonometric chart of the sandstone machine that this utility model ripping device is applied；
Fig. 9 is the exploded view of Fig. 8.
Label declaration
Moving trolley 1: underframe 11, oscillating arm bracket 12, portal support 13；
Total assembly 2 that drives: power source 21, power shaft 22, big belt pulley 23, oil seal 26；
Rip cutting assembly 3:
Driving gear set 31, forward spindle 32, rip cutting saw blade 33, forward spindle case 34, swing arm cylinder component 36；
Input gear 311, intermediate gear assemblies 312, front gear 313；Double reduction gearing group 314；
Gear wheel 1, little gear 1, gear wheel 2 3143, little gear 2 3144；
Folder cutterhead 331, partition 332；Rear bearing assembly 351, fore bearing assembly 352,
Gear-bearing assembly 353, cylinder body 361, piston rod 362, adjusting nut 363；
Saw blade cover 6: fixing cover 61, movable guard 62, overturning oil cylinder 63, clip 64；
Hydraulic oil container 91, electric cabinet 92, operation lower platform 93, left socle 94, protection network 95,
Wire guide channels 96, sunshade 97.
Detailed description of the invention
With detailed description of the invention, this case is described in further detail below in conjunction with the accompanying drawings.
This case relates to the ripping device of a kind of sandstone machine, always drives as it is shown in figure 1, mainly include
Dynamic assembly 2 and rip cutting assembly 3.This always drives assembly 2 and rip cutting assembly 3 to be arranged on the walking of sandstone machine
Car 1, the moving trolley 1 of sandstone machine is additionally provided with crosscutting assembly 4.
Total driving assembly 2 mainly includes the power source 21 and power shaft 22 being mutually in transmission connection.Transmission
Connecting a kind of embodiment is belt load mode, is provided with big belt pulley 23, power in power shaft 22
The output shaft in source 21 is in transmission connection with big belt pulley 23 by belt (not shown).Moving trolley 1
Being provided with underframe 11, underframe 11 is provided with motor cabinet, and power source 21 is fixedly installed on motor cabinet.The end
Frame 11 is provided with left and right two oscillating arm brackets 12 side by side, and power shaft 22 adaptation is installed on two oscillating arm brackets
On 12.
As shown in Figure 2-5, rip cutting assembly 3 mainly includes driving gear set 31, forward spindle 32 and indulges
Cut saw blade 33.Driving gear set 31 is in transmission connection between power shaft 22 and forward spindle 32, ripsaw
Sheet 33 is arranged on forward spindle 32.During sandstone machine operation, total driving assembly 2 starts, power source 21
Band driven input shaft 22 rotates；The power shaft 22 rotated drives forward spindle 32 via driving gear set 31
Rotate, thus drive rip cutting saw blade 33 rotary operation.Crosscutting assembly 4 is in transmission connection with power shaft 22,
The power shaft 22 rotated can drive the crosscutting saw blade rotary operation of crosscutting assembly 4 simultaneously.
The lifting action design of rip cutting saw blade 33, is designed as swing arm knot dexterously by driving gear set 31
Structure, specifically, connects between power shaft 22 and forward spindle 32 and has a forward spindle case 34, driving cog
Wheels 32 correspondence is installed in forward spindle case 34, and driving gear set 32 and forward spindle case 34 should
The two is configured to a gear driven type swing arm with power shaft 22 as fulcrum, in this gear driven type swing arm
Connect and have swing arm cylinder component 36, to drive this swing arm to swing.
Do not interfering with on the premise of driving gear set 31 drives rip cutting saw blade 33 spinning movement, passing through
Control the flexible of swing arm cylinder component 36, driven gear driven type swing arm (can i.e. drive forward spindle case
34 together with driving gear set 32 and longitudinal saw blade 33) swing up and down, it is achieved longitudinal saw blade 33 swings and rises
Fall action.Certainly swing process is without driving the action therewith of associated drives assembly, the letter of oscillating lifting structure
Clean, smooth operation is reliable and efficient.
The ripping device of this utility model sandstone machine, total driving assembly 2 uses fixed external peace
Dress, it makees the design of split dexterously, rip cutting assembly 3 with rip cutting saw blade 33 by driving gear set 31
Realize rip cutting saw blade 33 by driving gear set 31 and drive being in transmission connection of assembly 2 with total.Rip cutting
The lifting action design of saw blade 33 is avoided always driving assembly 2 to make independent design, by driving gear set 31
It is designed as swing arm structure dexterously, need to can be the simplest by a swing arm cylinder component 36 in this
Ground drives ripsaw sheet 33 to swing up and down while rotating, longitudinally cutting to complete.
The connected mode of described forward spindle case 34 is, rear bearing assembly is passed through in the rear end of forward spindle case 34
351 are connected with power shaft 22, and fore bearing assembly 352 and forward spindle are passed through in the front end of forward spindle case 34
32 connect, and driving gear set 31 is integrally installed on forward spindle case 34 by gear-bearing assembly 353.
Described rear bearing assembly 351, fore bearing assembly 352 and gear-bearing assembly 353 all include mutually dress
The bearing joined and bearing block, when being provided with multiple sets of teeth wheel in the middle of driving gear set 31, it is correspondingly provided with many
Group gear-bearing assembly 353.Offer on forward spindle case 34 for the installation of each bearing assembly one_to_one corresponding
Mounting hole site.
Described driving gear set 31, as it is shown on figure 3, it includes input gear 311, idler gear
Assembly 312 and front gear 313.Intermediate gear assemblies 312 includes gear shaft and and is arranged on this gear shaft
On idler gear.Input gear 311 is arranged on power shaft 22, and front gear 313 is arranged on front master
On axle 32, idler gear is in transmission connection between input gear 311 and front gear 313.It is also preferred that the left
Intermediate gear assemblies 312 includes at least two group gear shafts arranged in parallel and one to one at least two
Group idler gear, described at least two group idler gear transmission successively engagements.In the specific embodiment be given,
Intermediate gear assemblies 312 is provided with four groups be in transmission connection successively, certainly can be suitable according to design requirement
Increase and decrease is arranged.
In order to control the operating speed of rip cutting saw blade 33, it is also devised with subtracting in intermediate gear assemblies 313
Speed assembly, in specific embodiment, is designed as two-stage by the least significant end two groups of intermediate gear assemblies 312 and subtracts
Speed gear train 314, this double reduction gearing group 314 is in transmission connection by the dislocation of size gear and constitutes.Specifically
From the point of view of, as it is shown on figure 3, double reduction gearing group 314 includes gear wheel 1, little gear one
3142, gear wheel 2 3143 and little gear 2 3144；Gear wheel 1 and little gear 1
Coaxial assembling, gear wheel 2 3143 and little gear 2 3144 coaxially assemble, gear wheel 1 with
Front corresponding idler gear transmission engagement, the transmission mutual with gear wheel 2 3143 of little gear 1 is nibbled
Closing, little gear 2 3144 engages with front gear 313 transmission.
Described driving gear set 31, it respectively organizes gear preferably in setting in one line, and forward end
Gear sink arrange, in specific embodiment, front gear 313 and rear class train of reduction gears (gear wheel
2 3143 and little gear 2 3144) slightly sink to arranging, the corresponding gear driven type swing arm constituted has
The front galianconism (shown in Figure 3) of the most long-armed and past bottom, swing arm cylinder component 36 correspondence is connected to
Rear long-armed position, is so designed that the steady liter of swinging operation and the rip cutting saw blade 33 being relatively beneficial to swing arm
Fall.
As shown in Figure 4, described big belt pulley 23 is arranged on the end of power shaft 22, power shaft 22
This end adapter internal gland and outer press cover are installed.The other end of power shaft 22 can be as crosscutting assembly
The end that is in transmission connection of 4.Rear bearing assembly 351 on power shaft 22 is provided with two groups of symmetry, after two groups
The outer end of bearing assembly 351 is equipped with bearing cap.One of which rear bearing assembly 351 and big belt pulley
23 are disposed adjacent, and are provided with seal disc between the two, and the inner side of corresponding adjacent bearing cap is provided with oil seal 26.
It is again provided with oil seal 26 between another group rear bearing assembly 351 and power shaft 22.
As it is shown in figure 5, the fore bearing assembly 352 on forward spindle 32 is provided with two groups of symmetry, before two groups
The outer end of bearing assembly 352 is equipped with bearing cap, and the inner side of bearing cap is provided with oil seal.Forward spindle 32
It is provided with folder cutterhead 331, for installing the effect of rip cutting saw blade 33.Folder cutterhead 331 is according to cutting need
Want to be provided with several, set up the two ends, left and right at forward spindle 32 separately, be given in specific embodiment, left
End is provided with three folder cutterheads 331, and right side is provided with two folder cutterheads 331.Folder cutterhead 331 is according to ripsaw
The position of sheet 33 is installed to be needed, and has length to distinguish and arranges.The end being located at forward spindle 32 uses long
Folder cutterhead, it is achieved rip cutting saw blade 33 in left and right to extension arrange, be the most also beneficial to forward spindle 32 end simultaneously
At portion, the lock to folder cutterhead is provided as using.Preferably separated by partition 332 between two adjacent folder cutterheads 331
Arrange.
Preferably, as shown in Fig. 1, Fig. 6, described swing arm cylinder component 36 uses double head oil cylinder, should
Double head oil cylinder has a cylinder body 361 and the piston rod 362 of cylinder body 361 is all stretched out at two ends.Cylinder body
36 are rotatably connected in associated supports, and specifically, the front end of oscillating arm bracket 12 is provided with portal support
13, cylinder body 361 is rotatably connected on portal support 13.The bottom of piston rod 362 is rotationally connected
On forward spindle case 34, the upper end of piston rod 362 is provided with adjusting nut 363.
Swing arm cylinder component 36 uses double head oil cylinder structure, and the rotary type being beneficial to make concision and compact is installed；
And the rotary type of double head oil cylinder self is installed so that it is be more suitable for driving swing arm swinging operation.Prior
It is, the design of the adjusting nut 363 of double head oil cylinder only can simply need to be adjusted by adjusting nut 363
Whole swing arm cylinder component 36 drives the amplitude peak of the swing arm bottom, brings swing arm amplitude of fluctuation the most adjustable
Effect.
About described power source 21, preferably use the internal combustion engine as single power source, compare and adopt
By motor power source mode or other modes, special on the basis of this utility model structure-property design
Do not use internal combustion engine, it is possible to making overall structure more succinct, power drive is more reliable and more stable, should
With in exploitation without being affected by environment or electric power etc. or retrain, by force, possessed is excellent for Practical Performance
Point and the benefit brought are the most prominent.
About crosscutting assembly 4, its level, to action, can be realized by the movable axis of design spline fitted
Can also move horizontally with while power shaft 22 synchronous rotary, need to by a horizontal oil cylinder i.e. in this
Crosscutting assembly 4 and crosscutting saw blade can be succinctly driven to move horizontally, to complete horizontal section cutting.
Preferably, rip cutting saw blade 3 is also equipped with saw blade cover 6, as it is shown in fig. 7, this saw blade cover 6 includes
There are fixing cover 61, movable guard 62 and overturning oil cylinder 63.Fixing cover 61 is by the fixing peace of clip 64
Being loaded on the fore bearing assembly 352 of rip cutting assembly 3, movable guard 62 is rotatably connected on fixing cover 61
Top, overturning oil cylinder 63 is connected between fixing cover 61 and movable guard 62, by overturning oil cylinder 63
Expanding-contracting action, can drive movable guard 62 to set action as inversion boot.Fixing cover 61 and movable guard 62 are equal
In quadrant structure, after the two mutually fastens, in the upper semicircumference being located at rip cutting saw blade 33
Semicircle cover structure, play protection rip cutting saw blade 33 effect.
If Fig. 8-9 is this utility model ripping device layout schematic diagram on sandstone complete machine, institute
Stating cylinder component is hydraulic cylinder component, and moving trolley 1 is also equipped hydraulic oil container 91.On moving trolley 1
Being additionally provided with electric cabinet 92, in order to be beneficial to manipulate, electric cabinet 92 is other is additionally provided with operation lower platform 93.OK
In mule carriage 1, the structure distribution of each assembly is, power source 21 and hydraulic oil container about 91 are disposed adjacent,
The two is located at the middle part of moving trolley 1, and the front portion of moving trolley 1 is located at by crosscutting assembly 4 and rip cutting assembly 3,
Electric cabinet 92 and operation lower platform 93 are located at the rear portion of moving trolley 1.This structure distribution concision and compact.
Left socle 94 can be set up on power source 21, played protective action, left socle 94 can be located at
Wire guide channels 96, supply lines is succinctly arranged.Hydraulic oil container 91 be arranged over protection network 95, rise anti-
Protect effect.In order to strengthen the comfortableness in operator's operation, also set up in the rear portion of moving trolley 1
Sunshade 97.
The foregoing is only preferred embodiment of the present utility model, all with this utility model claim model
Enclose done impartial change and modify, the scope of this utility model claim all should be belonged to.
Claims (10)
1. the ripping device of a sandstone machine, it is characterised in that: include total driving assembly and indulge
Cut assembly；Total driving assembly includes the power source and power shaft being mutually in transmission connection；Rip cutting assembly bag
Having included driving gear set, forward spindle and rip cutting saw blade, driving gear set is in transmission connection at power shaft and front
Between main shaft, rip cutting saw blade is arranged on forward spindle；Connect before having one main between power shaft and forward spindle
Axle box, driving gear set is installed in forward spindle case and the two is configured to one with power shaft as fulcrum
Gear driven type swing arm, this gear driven type swing arm connects and has the swing arm cylinder component driving its swing.
The ripping device of a kind of sandstone machine the most as claimed in claim 1, it is characterised in that: institute
The each group gear stating driving gear set is setting in one line, and the gear of forward end sinks to arranging,
The corresponding gear driven type swing arm constituted has the front galianconism of the rear long-armed and past bottom, swing arm cylinder component
Correspondence is connected to rear long-armed position.
The ripping device of a kind of sandstone machine the most as claimed in claim 1, it is characterised in that: institute
The rear end stating forward spindle case is connected with power shaft by rear bearing assembly, and the front end of forward spindle case is by front
Bearing assembly is connected with forward spindle, and driving gear set is integrally installed on forward spindle by gear-bearing assembly
On case.
The ripping device of a kind of sandstone machine the most as claimed in claim 3, it is characterised in that: institute
Stating power shaft and be provided with oil seal with rear bearing inter-module, forward spindle and fore bearing inter-module are provided with oil seal.
The ripping device of a kind of sandstone machine the most as claimed in claim 1, it is characterised in that: institute
State driving gear set and include input gear, intermediate gear assemblies and front gear；Input gear is arranged on
On power shaft, front gear is arranged on forward spindle, intermediate gear assemblies be in transmission connection at input gear and
Between front gear.
The ripping device of a kind of sandstone machine the most as claimed in claim 5, it is characterised in that: institute
State intermediate gear assemblies and include at least two group gear shafts arranged in parallel and at least two group one to one
Idler gear, this at least two groups idler gear transmission successively is engaged.
The ripping device of a kind of sandstone machine the most as claimed in claim 5, it is characterised in that: institute
Stating intermediate gear assemblies and also include double reduction gearing group, this double reduction gearing group is by size gear
Misplace the composition that is in transmission connection.
The ripping device of a kind of sandstone machine the most as claimed in claim 1, it is characterised in that: institute
State forward spindle and be provided with the folder cutterhead for installing rip cutting saw blade；This folder cutterhead is provided with several, sets up separately
At the two ends of forward spindle, arranged by separates between two the most adjacent folder cutterheads.
The ripping device of a kind of sandstone machine the most as claimed in claim 1, it is characterised in that: institute
Stating swing arm cylinder component is double head oil cylinder, and this double head oil cylinder has cylinder body and cylinder body is all stretched out at two ends
Piston rod；Cylinder body is rotatably connected in associated supports, before the bottom of piston rod is rotatably connected on
On main spindle box, the upper end of piston rod is provided with adjusting nut.
The ripping device of a kind of sandstone machine the most as claimed in claim 1, it is characterised in that:
Described rip cutting saw blade is also equipped with saw blade cover, and this saw blade cover includes fixing cover, movable guard and upset oil
Cylinder；Fixing cover is fixedly installed on rip cutting assembly by clip, and movable guard is rotatably connected on fixing cover
Top, overturning oil cylinder is connected between fixing cover and movable guard, to drive movable guard to make rotary movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523812.9U CN205778872U (en) | 2016-06-01 | 2016-06-01 | A kind of ripping device of sandstone machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620523812.9U CN205778872U (en) | 2016-06-01 | 2016-06-01 | A kind of ripping device of sandstone machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778872U true CN205778872U (en) | 2016-12-07 |
Family
ID=58136105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620523812.9U Withdrawn - After Issue CN205778872U (en) | 2016-06-01 | 2016-06-01 | A kind of ripping device of sandstone machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888670A (en) * | 2016-06-01 | 2016-08-24 | 泉州市海恩德机电科技发展有限公司 | Longitudinal sawing device of sandstone machine |
-
2016
- 2016-06-01 CN CN201620523812.9U patent/CN205778872U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888670A (en) * | 2016-06-01 | 2016-08-24 | 泉州市海恩德机电科技发展有限公司 | Longitudinal sawing device of sandstone machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20181026 |
|
| AV01 | Patent right actively abandoned |