CN213080142U - Drilling device for cutting teeth of coal mining machine - Google Patents
Drilling device for cutting teeth of coal mining machine Download PDFInfo
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- CN213080142U CN213080142U CN202021815212.2U CN202021815212U CN213080142U CN 213080142 U CN213080142 U CN 213080142U CN 202021815212 U CN202021815212 U CN 202021815212U CN 213080142 U CN213080142 U CN 213080142U
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- 238000005553 drilling Methods 0.000 title claims abstract description 59
- 239000003245 coal Substances 0.000 title claims abstract description 16
- 238000005065 mining Methods 0.000 title claims abstract description 14
- 230000036346 tooth eruption Effects 0.000 title description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 122
- 238000005520 cutting process Methods 0.000 claims abstract description 26
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Abstract
The utility model discloses a drilling device for a cutting tooth of a coal mining machine, which belongs to the technical field of cutting tooth processing equipment and comprises a frame, a clamping mechanism, a linkage mechanism, a drilling mechanism and a driving mechanism, wherein the frame comprises an upper fixed plate, a lower fixed plate and a three-upright-post, and the three-upright-post is positioned between the upper fixed plate and the lower fixed plate and is fixed at the edges of the upper fixed plate and the lower fixed plate in a triangular structure; the clamping mechanism, the linkage mechanism, the drilling mechanism and the driving mechanism are all positioned between an upper fixing plate and a lower fixing plate of the rack, the clamping mechanism and the drilling mechanism are respectively positioned at two ends of the rack, and the clamping mechanism is positioned at one end of a single stand column; the driving mechanism is movably connected to one end of the drilling mechanism and used for driving the drilling mechanism to work; the linkage mechanism is connected between the clamping mechanism and the driving mechanism and used for driving the clamping mechanism to work in a linkage mode. The drilling device can realize the operation steps of clamping, drilling and the like of the cutting tooth by using only a single electrical device, and has the advantages of strong maneuverability, high automation degree and lower production and maintenance cost.
Description
Technical Field
The utility model belongs to the technical field of the pick processing equipment, in particular to drilling equipment that coal-winning machine pick was used.
Background
The cutting pick is one of the vulnerable parts in coal mining and roadway tunneling machines, and is a main tool for coal dropping and breaking. The cutting picks are of various types, and the common structure is that a hard alloy tool bit is embedded on a low-alloy structural steel tool body which is subjected to quenching and tempering treatment.
One end of the cutting pick is a tip end, the other end of the cutting pick is a columnar fixed end, the tip end of the cutting pick is provided with an annular convex part used for assembly limiting of the coal mining machine, and the columnar fixed ends are respectively provided with a hole used for connecting a rack of the coal mining machine. The existing cutting tooth drilling device is complex in structure, can realize operations such as clamping and drilling of a cutting tooth by adopting a plurality of electrical equipment, is low in automation degree and high in production and maintenance cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a drilling equipment that coal-winning machine pick was used only can realize with single electrical equipment that the pick can carry out operating procedure such as clamping, drilling, and mobility is strong, and degree of automation is high, and production and maintenance cost are lower.
In order to achieve the above purpose, the solution of the present invention is:
a drilling device for cutting teeth of a coal cutter comprises a rack, a clamping mechanism, a linkage mechanism, a drilling mechanism and a driving mechanism, wherein the rack comprises an upper fixing plate, a lower fixing plate and three stand columns, and the three stand columns are positioned between the upper fixing plate and the lower fixing plate and are fixed at the edges of the upper fixing plate and the lower fixing plate in a triangular structure; the clamping mechanism, the linkage mechanism, the drilling mechanism and the driving mechanism are all positioned between an upper fixing plate and a lower fixing plate of the rack, the clamping mechanism and the drilling mechanism are respectively positioned at two ends of the rack, and the clamping mechanism is positioned at one end of a single stand column; the driving mechanism is movably connected to one end of the drilling mechanism and used for driving the drilling mechanism to work; the linkage mechanism is connected between the clamping mechanism and the driving mechanism and used for driving the clamping mechanism to work in a linkage mode.
The rack also comprises a sliding seat, two sliding strips, a rack and a sliding chute, wherein the two sliding strips and the sliding chute are arranged along the length direction of the upper fixing plate and the lower fixing plate of the rack; the slide seat is connected between the two slide bars in a sliding mode, and the rack is located on the side wall inside the sliding groove.
The clamping mechanism comprises a gear, a sliding block, an upper clamping plate, a screw rod and a lower clamping plate, wherein the screw rod is rotationally connected between the upper fixing plate and the lower fixing plate, and the gear is sleeved at the upper end of the screw rod; the sliding block is sleeved at the middle end of the screw rod and is in sliding connection with the side upright post; the upper clamp plate is connected to the outer side of the sliding block through a bracket, and the lower clamp plate is fixed on the lower fixing plate right below the upper clamp plate.
The bottom of the upper clamping plate and the top of the lower clamping plate are both provided with arc-shaped grooves.
The upper end of the screw rod is a smooth surface, the middle end and the bottom end are threaded surfaces, and the center of the sliding block is provided with a threaded hole matched with the screw rod threads.
The linkage mechanism comprises a connecting rod, two guide frames and a fixed block, wherein the two guide frames are fixed at the bottom of the upper fixed plate; the connecting rod is connected between the two guide frames in a sliding manner, and teeth are arranged on the outer surface of one end of the connecting rod, which is close to the gear, and are meshed with the gear; the fixed block is located the one end that the tooth was kept away from to the connecting rod, and the fixed block is connected with actuating mechanism.
The drilling mechanism comprises a drill bit, a rotating shaft, a fixed rod and a worm gear, wherein the fixed rod is fixed at the top of the sliding seat; one end of the fixed rod is rotatably connected with a rotating shaft, and the drill bit is fixed at one end of the rotating shaft, which is far away from the fixed rod; the worm gear is sleeved on the outer side of the rotating shaft.
The driving mechanism comprises a motor, a worm and driving teeth, and the worm vertically penetrates through the sliding seat and is rotationally connected with the sliding seat; the worm is meshed with the worm wheel, and the top end of the worm is rotatably connected with the fixed block; the motor is connected to the top of the fixed block, and the output end of the motor is fixedly connected with the worm; the driving teeth are positioned at the bottom end of the worm in the sliding groove and are meshed with the rack.
After the scheme is adopted, the utility model discloses compare prior art's beneficial effect is:
by adopting the frame, the clamping mechanism, the linkage mechanism, the drilling mechanism and the driving mechanism, the driving teeth are meshed with the racks to drive the sliding seat and the drilling mechanism to move along the sliding groove through positive and negative rotation of the motor, so that the connecting rod pushes the gear and the screw rod to rotate through the teeth in the moving process, the sliding block slides up and down along the upright post under the action of the screw rod, and then the upper clamping plate is driven to move towards the lower clamping plate to clamp the cutting teeth on the lower clamping plate; meanwhile, the rotating worm can be meshed with the worm wheel to rotate, the driving rotating shaft and the drill bit are driven to rotate, stable drilling on the cutting tooth through the drill bit is facilitated, the whole structure can realize the operation steps of clamping, drilling and the like of the cutting tooth only through the driving mechanism, the maneuverability is strong, the automation degree is high, and the production and maintenance cost is low.
Drawings
Fig. 1 is a schematic front view of the present invention;
fig. 2 is a schematic side view of the present invention.
Reference numerals:
the device comprises a rack 1, a sliding seat 11, a sliding strip 12, a rack 13 and a sliding groove 14;
the clamping mechanism 2, the gear 21, the slide block 22, the upper clamping plate 23, the screw 24 and the lower clamping plate 25;
the linkage mechanism 3, the connecting rod 31, the guide frame 32 and the fixed block 33;
a drilling mechanism 4, a drill 41, a rotating shaft 42, a fixing rod 43 and a worm wheel 44;
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 to 2, the utility model provides a drilling device for cutting teeth of a coal mining machine, which comprises a frame 1, a clamping mechanism 2, a linkage mechanism 3, a drilling mechanism 4 and a driving mechanism 5; the frame 1 comprises an upper fixing plate, a lower fixing plate and three upright posts; the upright column is positioned between the upper fixing plate and the lower fixing plate and is fixed at the edges of the upper fixing plate and the lower fixing plate in a triangular structure, and a control button is arranged at the top of the upper fixing plate and is used for controlling the driving mechanism 5 to be powered on and powered off and rotate forwards and reversely; the linkage mechanism 3 and the driving mechanism 5 are both positioned in the center of the rack 1, the clamping mechanism 2 and the drilling mechanism 4 are respectively positioned at two ends of the rack 1, and the clamping mechanism 2 is positioned at one end of a single stand column; the driving mechanism 5 is movably connected to one end of the drilling mechanism 4 and is used for driving the drilling mechanism 4 to work; the link gear 3 is connected between the clamping mechanism 2 and the driving mechanism 5 and used for driving the clamping mechanism 2 to perform linkage work, the driving mechanism 5 is convenient to drive the drilling mechanism 4 to move and drill the cutting tooth, the driving mechanism 5 can drive the link gear 3 to drive the clamping mechanism 2 to perform synchronous work to clamp the cutting tooth, and the clamping, drilling and other operation steps of the cutting tooth can be realized only through the driving mechanism 5.
In this embodiment, the frame 1 further includes a sliding seat 11, two sliding bars 12, a rack 13 and a sliding groove 14; the two sliding strips 12 and the sliding groove 14 are arranged along the length direction of the upper fixing plate and the lower fixing plate of the frame 1; the two sliding strips 12 are positioned at the top of the lower fixing plate, and the sliding groove 14 is positioned on the lower fixing plate between the two sliding strips 12; the sliding seat 11 is connected between the two sliding strips 12 in a sliding manner, and the drilling mechanism 4 is fixed at the top of the sliding seat 11; the rack 13 is located on the side wall inside the sliding groove 14, the bottom end of the driving mechanism 5 penetrates through the sliding seat 11, extends into the sliding groove 14 and is connected with the rack 13, and the driving mechanism 5 drives the sliding seat 11 and the drilling mechanism 4 to move towards the clamping mechanism 2 along the sliding strip 12 when moving in the sliding groove 14, so that cutting teeth on the clamping mechanism 2 are drilled.
In this embodiment, the clamping mechanism 2 includes a gear 21, a slider 22, an upper clamp plate 23, a screw 24, and a lower clamp plate 25; the screw rod 24 is rotationally connected between the upper fixing plate and the lower fixing plate; the gear 21 is sleeved at the upper end of the screw 24; the sliding block 22 is sleeved at the middle end of the screw rod 24 and is in sliding connection with the side upright column; the upper clamping plate 23 is connected to the outer side of the sliding block 22 through a bracket; the lower clamping plate 25 is fixed on the lower fixing plate under the upper clamping plate 23, so that when the screw 24 rotates, the sliding block 22 slides up and down along the upright column under the action of the screw 24, and then the upper clamping plate 23 is driven to move towards the lower clamping plate 25, and cutting teeth on the lower clamping plate 25 are clamped.
In this embodiment, 23 bottoms of punch holder and lower plate 25 tops all are equipped with the arc wall, can cooperate figure 2 to show for the laminating pick surface, and then fix the pick between splint 23 and lower plate 25, avoid the pick to produce the dislocation at drilling process.
In this embodiment, the upper end of screw rod 24 is smooth surface, and well end is threaded surface to the bottom, and the central authorities of slider 22 are equipped with the screw hole of mutually supporting with 24 screw threads of screw rod, when guaranteeing that screw rod 24 rotates, and slider 22 is along stand lifting slide under the effect of screw rod 24 for drive punch holder 23 removes to splint 25 down, carries out the clamping to the pick on the lower plate 25.
In this embodiment, the linkage mechanism 3 includes a connecting rod 31, two guiding frames 32 and a fixing block 33; the two guide frames 32 are fixed at the bottom of the upper fixing plate; the connecting rod 31 is connected between the two guide frames 32 in a sliding manner, teeth are arranged on the outer surface of one end of the connecting rod 31 close to the gear 21, and the teeth are meshed with the gear 21; the fixed block 33 is located the one end that the tooth was kept away from to connecting rod 31, and fixed block 33 is connected with actuating mechanism 5, and the actuating mechanism 5 work of being convenient for drives slide 11 and drilling mechanism 4 along draw runner 12 when moving to clamping mechanism 2, and connecting rod 31 slides between two leading framves 32, and then rotates through tooth interlock gear 21 on the connecting rod 31 to drive screw 24 rotates, realizes the synchronous clamp of pick through the removal of punch holder 23 and lower plate 25.
In this embodiment, the drilling mechanism 4 includes a drill 41, a shaft 42, a fixing rod 43 and a worm gear 44; the fixed rod 43 is fixed on the top of the sliding seat 11, and one end of the fixed rod 43 is rotatably connected with a rotating shaft 42; the drill 41 is fixed at one end of the rotating shaft 42 away from the fixing rod 43; the worm gear 44 is sleeved outside the rotating shaft 42, so that the driving mechanism 5 drives the rotating shaft 42 and the drill bit 41 to rotate when working, and further performs drilling processing on the cutting teeth.
In this embodiment, the driving mechanism 5 includes a motor 51, a worm 52 and a driving gear 53; the worm 52 vertically penetrates through the sliding seat 11 and is in rotary connection with the sliding seat, the worm 52 is meshed with the worm wheel 44, and the top end of the worm 52 is in rotary connection with the fixed block 33; the motor 51 is connected to the top of the fixed block 33, and the output end of the motor 51 is fixedly connected with the worm 52; the driving teeth 53 are positioned at the bottom end of the worm 52 in the sliding chute 14, the driving teeth 53 are meshed with the rack 13, so that when the motor 51 rotates, the worm 52 drives the driving teeth 53 to rotate, the driving mechanism 5 slides along the sliding chute 14 under the action of the driving teeth 53 and the rack 13, the sliding seat 11 and the drilling mechanism 4 move towards the clamping mechanism 2 fixed with the cutting teeth, and the worm 52 rotates to drive the worm wheel 44 to rotate, so that the rotating shaft 42 and the drill bit 41 are driven to rotate, the drill bit 41 works in a linkage manner, no additional driving motor is needed to be matched, the use of electrical components is reduced, and the cost is saved; meanwhile, the connecting rod 31 of the linkage mechanism 3 slides between the two guide frames 32 along with the movement of the driving mechanism 5, so that the connecting rod 31 drives the clamping mechanism 2 to clamp the cutting tooth.
The utility model discloses a theory of operation is: when the cutting pick machining device is used, firstly, a cutting pick to be machined is placed in the arc-shaped groove of the lower clamping plate 25, the annular convex part of the cutting pick is attached to the outer surface of one end, close to the screw rod 24, of the lower clamping plate 25, then the motor 51 is controlled to rotate reversely through the control button, the motor 51 drives the worm 52 and the driving teeth 53 to rotate reversely, the driving teeth 53 are engaged with the rack 13, so that the driving mechanism 5 drives the sliding seat 11 and the drilling mechanism 4 to move towards one end of the clamping mechanism 2 along the sliding groove 14, the rotating worm 52 is engaged with the worm wheel 44 to rotate, further the driving rotating shaft 42 and the drill bit 41 are driven to rotate, when the driving mechanism 5 moves in the sliding groove 14, the connecting rod 31 slides between the two guide frames 32 along with the driving mechanism 5, the teeth engaged gear 21 at one end of the connecting rod 31 rotates, further the driving screw rod 24 rotates reversely, at the moment, clamping the cutting teeth on the lower clamping plate 25, when the drill bit 41 approaches the cutting teeth, the teeth on the connecting rod 31 completely cross the gear 21, the sliding block 22 stops descending, the cutting teeth are completely fixed by the upper clamping plate 23 and the lower clamping plate 25, and the stability of the drill bit 41 in drilling the cutting teeth is guaranteed; after the drilling is finished, the control motor 51 rotates reversely, the driving mechanism 5 resets at the moment, the connecting rod 31 resets accordingly, the screw rod 24 rotates forwards at the moment, and the sliding block 22 drives the upper clamping plate 23 to move upwards and reset.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (8)
1. The utility model provides a drilling equipment that coal-winning machine pick was used which characterized in that: the drilling machine comprises a rack, a clamping mechanism, a linkage mechanism, a drilling mechanism and a driving mechanism, wherein the rack comprises an upper fixing plate, a lower fixing plate and a three-column, and the three-column is positioned between the upper fixing plate and the lower fixing plate and is fixed at the edges of the upper fixing plate and the lower fixing plate in a triangular structure; the clamping mechanism, the linkage mechanism, the drilling mechanism and the driving mechanism are all positioned between an upper fixing plate and a lower fixing plate of the rack, the clamping mechanism and the drilling mechanism are respectively positioned at two ends of the rack, and the clamping mechanism is positioned at one end of a single stand column; the driving mechanism is movably connected to one end of the drilling mechanism and used for driving the drilling mechanism to work; the linkage mechanism is connected between the clamping mechanism and the driving mechanism and used for driving the clamping mechanism to work in a linkage mode.
2. The drilling device for a cutting pick of a coal mining machine according to claim 1, wherein: the rack also comprises a sliding seat, two sliding strips, a rack and a sliding chute, wherein the two sliding strips and the sliding chute are arranged along the length direction of the upper fixing plate and the lower fixing plate of the rack; the slide seat is connected between the two slide bars in a sliding mode, and the rack is located on the side wall inside the sliding groove.
3. A drilling apparatus for a cutting pick of a coal mining machine according to claim 1 or 2, wherein: the clamping mechanism comprises a gear, a sliding block, an upper clamping plate, a screw rod and a lower clamping plate, wherein the screw rod is rotationally connected between the upper fixing plate and the lower fixing plate, and the gear is sleeved at the upper end of the screw rod; the sliding block is sleeved at the middle end of the screw rod and is in sliding connection with the side upright post; the upper clamp plate is connected to the outer side of the sliding block through a bracket, and the lower clamp plate is fixed on the lower fixing plate right below the upper clamp plate.
4. A drilling apparatus for a cutting pick of a coal mining machine according to claim 3, wherein: arc-shaped grooves are formed in the bottom of the upper clamping plate and the top of the lower clamping plate.
5. A drilling apparatus for a cutting pick of a coal mining machine according to claim 3, wherein: the upper end of the screw rod is a smooth surface, the middle end to the bottom end of the screw rod is a threaded surface, and the center of the sliding block is provided with a threaded hole matched with the screw rod threads.
6. A drilling apparatus for a cutting pick of a coal mining machine according to claim 3, wherein: the linkage mechanism comprises a connecting rod, two guide frames and a fixed block, wherein the two guide frames are fixed at the bottom of the upper fixed plate; the connecting rod is connected between the two guide frames in a sliding manner, and teeth are arranged on the outer surface of one end of the connecting rod, which is close to the gear, and are meshed with the gear; the fixed block is located the one end that the tooth was kept away from to the connecting rod, and the fixed block is connected with actuating mechanism.
7. The drilling device for a cutting pick of a coal mining machine according to claim 2, wherein: the drilling mechanism comprises a drill bit, a rotating shaft, a fixed rod and a worm gear, and the fixed rod is fixed at the top of the sliding seat; one end of the fixed rod is rotatably connected with a rotating shaft, and the drill bit is fixed at one end of the rotating shaft, which is far away from the fixed rod; the worm gear is sleeved on the outer side of the rotating shaft.
8. The drilling apparatus for a cutting pick of a coal mining machine according to claim 7, wherein: the driving mechanism comprises a motor, a worm and driving teeth, and the worm vertically penetrates through the sliding seat and is rotationally connected with the sliding seat; the worm is meshed with the worm wheel, and the top end of the worm is rotatably connected with the fixed block; the motor is connected to the top of the fixed block, and the output end of the motor is fixedly connected with the worm; the driving teeth are positioned at the bottom end of the worm in the sliding groove and are meshed with the rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021815212.2U CN213080142U (en) | 2020-08-26 | 2020-08-26 | Drilling device for cutting teeth of coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021815212.2U CN213080142U (en) | 2020-08-26 | 2020-08-26 | Drilling device for cutting teeth of coal mining machine |
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| Publication Number | Publication Date |
|---|---|
| CN213080142U true CN213080142U (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021815212.2U Active CN213080142U (en) | 2020-08-26 | 2020-08-26 | Drilling device for cutting teeth of coal mining machine |
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| Country | Link |
|---|---|
| CN (1) | CN213080142U (en) |
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2020
- 2020-08-26 CN CN202021815212.2U patent/CN213080142U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 224100 No. 86, Xingye Road, Dazhong Industrial Park, Dafeng District, Yancheng City, Jiangsu Province Patentee after: Outewei (Jiangsu) Machinery Technology Co.,Ltd. Address before: 224100 Dazhong Industrial Park, Dazhong community, Dafeng District, Yancheng City, Jiangsu Province Patentee before: Yancheng outway Machinery Technology Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yancheng Outewei Machinery Manufacturing Co.,Ltd. Assignor: Outewei (Jiangsu) Machinery Technology Co.,Ltd. Contract record no.: X2023980053973 Denomination of utility model: A drilling device for coal mining machine cutting teeth Granted publication date: 20210430 License type: Common License Record date: 20231226 |
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| EE01 | Entry into force of recordation of patent licensing contract |