CN118684142B - A coupling for crane - Google Patents
A coupling for crane Download PDFInfo
- Publication number
- CN118684142B CN118684142B CN202411166606.2A CN202411166606A CN118684142B CN 118684142 B CN118684142 B CN 118684142B CN 202411166606 A CN202411166606 A CN 202411166606A CN 118684142 B CN118684142 B CN 118684142B
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- Prior art keywords
- fixing
- block
- coupling
- fixedly connected
- pair
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- 230000008878 coupling Effects 0.000 title claims description 39
- 238000010168 coupling process Methods 0.000 title claims description 39
- 238000005859 coupling reaction Methods 0.000 title claims description 39
- 238000001125 extrusion Methods 0.000 claims description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000004804 winding Methods 0.000 abstract description 17
- 230000007246 mechanism Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention belongs to the technical field of crane equipment, and particularly relates to a coupler for a crane, which comprises a frame, wherein a winding drum is rotatably connected to the frame; the winding drum is coaxially connected with a coupler, a motor is connected to the coupler, and connecting shafts corresponding to the coupler are connected to the motor and the winding drum; the coupler comprises a coupler body, and both ends of the coupler body are connected with fixed bins; the connecting shafts are connected with the spline shafts, the connecting shafts are provided with connecting spline grooves corresponding to the connecting spline shafts, and the fixed bin is also provided with an external fixing structure for fixing the outer wall of the connecting shafts; the outer fixing structure comprises a plurality of middle fixing blocks which are arranged along the circumference and slide along the radial direction of the fixing bin, an adjusting structure which drives the plurality of middle fixing blocks to synchronously move is arranged in the fixing bin, and two sides of the plurality of middle fixing blocks are connected with side fixing blocks in a sliding manner along the circumferential direction; the invention effectively solves the problem that the existing luffing mechanism is inconvenient to maintain in the use process.
Description
Technical Field
The invention belongs to the technical field of crane equipment, and particularly relates to a coupling for a crane.
Background
The crane is a multi-action hoisting machine for vertically hoisting and horizontally carrying heavy objects in a certain range; the amplitude changing mechanism is a main working mechanism of the cantilever crane and is used for changing the amplitude of the crane, namely changing the horizontal distance from the center of a lifting hook (or a grab bucket) to the rotation central axis of the crane so as to adapt to the crane to load and unload articles under different conditions; the amplitude changing mechanism comprises a motor, a coupler, a winding drum and the like, and the coupler is driven to rotate through the motor so as to drive the winding drum to rotate, and then the amplitude of the crane is changed.
In addition, according to different bearing capacities of the crane, different reels and motors are needed to be used for the luffing mechanism; for different motors and reels, the sizes of the motors and the connecting shafts of the reels are different, so that different shaft couplings can be connected with different motors and reels, and normal operation of the reels is realized; however, the coupling is mostly designed in a fixed way, so that the coupling can only be connected with connecting shafts with fixed sizes and cannot adapt to the connecting shafts with different sizes; the existing coupler is poor in adaptability and cannot effectively adapt to the diameters of connecting shafts with various specifications; when the coupler fails, maintenance personnel cannot timely and effectively replace the coupler, the coupler with the same model is required to be purchased for installation, and the repair time of the crane is greatly influenced.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the coupler for the crane, which effectively solves the problem that the conventional luffing mechanism is inconvenient to maintain in the use process.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a coupling for a crane comprises a frame, wherein a winding drum is rotatably connected to the frame; the winding drum is coaxially connected with a coupler, a motor is connected to the coupler, and connecting shafts corresponding to the coupler are connected to the motor and the winding drum; the coupler comprises a coupler body, and both ends of the coupler body are connected with fixed bins; the connecting shafts are connected with the spline shafts, the connecting shafts are provided with connecting spline grooves corresponding to the connecting spline shafts, and the fixed bin is also provided with an external fixing structure for fixing the outer wall of the connecting shafts;
the outer fixing structure comprises a plurality of middle fixing blocks which are arranged along the circumference and slide along the radial direction of the fixing bin, an adjusting structure which drives the plurality of middle fixing blocks to synchronously move is arranged in the fixing bin, and two sides of the plurality of middle fixing blocks are connected with side fixing blocks in a sliding manner along the circumferential direction; the middle fixed block is rotationally connected with a pair of connecting rods, and the connecting rods are respectively rotationally connected with the side fixed blocks; the connecting shaft is fixedly connected with a connecting block, the connecting block is fixedly connected with middle fixing teeth, two sides of the middle fixing teeth are provided with side fixing teeth fixedly connected with the connecting block, and the middle fixing block and the side fixing block are respectively provided with fixing grooves corresponding to the middle fixing teeth and the side fixing teeth.
Further, the diameter of the inner wall of the connecting block is equal to the diameter of the outer wall of the connecting shaft, and the diameter of the outer wall of the connecting block is equal to the diameters of the inner walls of the side fixing block and the middle fixing block.
Further, the adjusting structure comprises an adjusting plate which is in sliding connection with the fixed bin, a plurality of push rods are rotatably connected to the adjusting plate, and the push rods are respectively and rotatably connected with the middle fixed blocks.
Further, an adjusting screw is rotationally connected to the fixed bin, and an adjusting knob is fixedly connected to the adjusting screw; the guide rod is fixedly connected in the fixed bin, and the adjusting plate is in sliding connection with the guide rod.
Further, a sliding rail is fixedly connected to the fixed bin, a locking block is connected to the sliding rail in a sliding manner, and a locking assembly matched with the locking block is arranged on the sliding rail; the locking block is rotationally connected with a pair of locking rods, and the pair of locking rods are respectively rotationally connected with the pair of connecting rods.
Further, the locking component comprises an extrusion screw rod in threaded connection with the sliding rail, and a knob is arranged on the extrusion screw rod; the extrusion screw is fixedly connected with an extrusion block, and the locking block is provided with an extrusion groove corresponding to the extrusion block.
Further, the connecting spline shaft and the connecting shaft are respectively provided with a fixing hole, and the fixing holes are provided with connecting bolts in a penetrating mode.
Further, the frame comprises a pair of vertical plates arranged on two sides of the winding drum, and the bottoms of the vertical plates are vertically and fixedly connected with fixing plates; the fixing plate is provided with a plurality of fixing holes, and the vertical plate is provided with reinforcing ribs matched with the fixing plate; a plurality of connecting posts are arranged between the pair of vertical plates, a plurality of connecting posts are connected with mounting bolts in a threaded manner, and connecting holes matched with the mounting bolts are formed in the vertical plates.
Further, a sector block is fixedly connected to the side fixing block, and a slideway matched with the sector block is arranged on the middle fixing block.
Further, a central column is fixedly connected in the fixed bin, and a sleeve hole corresponding to the central column is formed in the adjusting plate; the fixed bin is uniformly distributed with a plurality of reinforcing columns along the circumference, and a plurality of reinforcing columns are arranged between adjacent push rods.
Compared with the prior art, the invention has the following beneficial effects:
When the crane is used, the motor drives the winding drum to rotate through the shaft coupling by arranging the motor, the shaft coupling, the winding drum and the like, so that the amplitude of the crane is changed; in addition, the shaft coupling is provided with the middle fixing block, the side fixing block, the connecting rod and the like, so that the middle fixing block can be adjusted according to the diameter of the connecting shaft, the middle fixing block and the side fixing block are combined, the length of the cambered surface fixed on the connecting shaft corresponds to the cambered surface equally divided on the periphery of the connecting shaft, namely, the combination of a plurality of groups of middle fixing blocks and side fixing blocks corresponds to the cambered surface equally divided on the periphery of the connecting shaft respectively, the stability of the middle fixing block and the side fixing block on the connecting shaft is improved, the shaft coupling can effectively adapt to the diameters of connecting shafts with various specifications, and maintenance personnel can conveniently replace the shaft coupling when the shaft coupling breaks down, and the convenience of the shaft coupling is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a coupling according to the present invention;
FIG. 3 is a first isometric view of the mating state of the external fixation structure, adjustment structure, connecting shaft, etc. of the present invention;
FIG. 4 is an enlarged schematic view of area A of FIG. 3 in accordance with the present invention;
FIG. 5 is a second isometric view of the mating state of the external fixation structure, adjustment structure, connection shaft, etc. of the present invention;
FIG. 6 is a schematic structural view of an external fixation structure according to the present invention;
FIG. 7 is a schematic view showing the fitting state of the structure of the connecting shaft, the outer fixed teeth, the middle fixed teeth, etc. in the present invention;
in the figure: 1. the fixed plate, 2, the motor, 3, the shaft coupling, 4, the riser, 5, the reel, 6, the baffle ring, 7, the spliced pole, 8, the shaft coupling body, 9, the fixed bin, 10, the external fixation structure, 11, the connecting bolt, 12, the connecting shaft, 13, the connecting spline shaft, 14, the regulating plate, 15, the adjusting knob, 16, the slide rail, 17, the extrusion screw, 18, the adjusting screw, 19, the locking piece, 20, the locking rod, 21, the connecting rod, 22, the middle fixed block, 23, the side fixed block, 24, the side fixed tooth, 25, the push rod, 26, the center pole, 27, the guide rod, 28, the extrusion block, 29, the connecting block, 30, the sector block, 31, the fixed hole, 32, the middle fixed tooth, 33 and the connecting spline groove.
Detailed Description
The coupling 3 for the crane comprises a frame, wherein a winding drum 5 is rotatably connected to the frame, and baffle rings 6 are fixedly connected to two ends of the winding drum 5; the winding drum 5 is coaxially connected with a shaft coupling 3, the shaft coupling 3 is connected with a motor 2, and the motor 2 and the winding drum 5 are connected with a connecting shaft 12 corresponding to the shaft coupling 3; the coupler 3 comprises a coupler body 8, and both ends of the coupler body 8 are connected with a fixed bin 9; the connecting shafts 12 of the pair of the fixed bins 9 are connected with the spline shafts 13, the connecting shafts 12 are provided with connecting spline grooves 33 corresponding to the connecting spline shafts 13, and the fixed bins 9 are also provided with external fixing structures 10 for fixing the outer walls of the connecting shafts 12;
When the crane is used, the motor 2 drives the winding drum 5 to rotate through the shaft coupler 3 by arranging the motor 2, the shaft coupler 3, the winding drum 5 and the like, so that the amplitude of the crane is changed; in addition, when the coupling body 8 is connected with the connecting shaft 12, the coupling body 8 is connected with the connecting shaft 12 through the connecting spline grooves 33 of the connecting spline shaft 13 and the connecting shaft 12, and the outer wall of the connecting shaft 12 is connected through the outer fixing structure 10 on the fixing bin 9, so that the stability of the coupling body 8 and the connecting shaft 12 is further improved.
The outer fixing structure 10 comprises a plurality of middle fixing blocks 22 which are circumferentially arranged and slide along the radial direction of the fixing bin 9, an adjusting structure which drives the plurality of middle fixing blocks 22 to synchronously move is arranged in the fixing bin 9, and two sides of the plurality of middle fixing blocks 22 are both connected with side fixing blocks 23 in a sliding manner along the circumferential direction; the middle fixed block 22 is rotatably connected with a pair of connecting rods 21, and the connecting rods 21 are respectively rotatably connected with a pair of side fixed blocks 23; the connecting shaft 12 is fixedly connected with a connecting block 29, the connecting block 29 is fixedly connected with a middle fixing tooth 32, two sides of the middle fixing tooth 32 are provided with side fixing teeth 24 fixedly connected with the connecting block 29, and the middle fixing block 22 and the side fixing block 23 are respectively provided with fixing grooves corresponding to the middle fixing tooth 32 and the side fixing teeth 24. When the external fixing structure 10 is used, the middle fixing block 22 is adjusted through the adjusting structure, so that the middle fixing block 22 radially slides along the fixing bin 9; the side fixing blocks 23 are slid in the circumferential direction along the middle fixing blocks 22 by the sector blocks 30 by the connecting rods 21, changing the distance between the side fixing blocks 23 and the middle fixing blocks 22.
Specifically, the centering fixing block 22 is adjusted according to the diameter of the connecting shaft 12; as shown in fig. 3 and fig. 4, under the action of the connecting rod 21, the side fixing blocks 23 slide along the middle fixing blocks 22, so that the middle fixing blocks 22 and the side fixing blocks 23 are combined, the length of the cambered surface capable of fixing the connecting shaft 12 corresponds to the cambered surface equally divided by the periphery of the connecting shaft 12, namely, the combination of a plurality of groups of middle fixing blocks 22 and side fixing blocks 23 corresponds to the cambered surface equally divided by the periphery of the connecting shaft 12 respectively, so that the stability of fixing the connecting shaft 12 by the middle fixing blocks 22 and the side fixing blocks 23 is improved, the application can effectively adapt to the diameters of connecting shafts 12 with various specifications, and the adaptability of the application is improved; the middle fixing block 22 and the side fixing block 23 are matched with the middle fixing teeth 32 and the side fixing teeth 24 on the connecting block 29 through fixing grooves, so that the connecting shaft 12 is fixed.
If the diameter of the connecting shaft 12 is large, the equally divided cambered surface is relatively large, and the middle fixing block 22 is adjusted, so that the cambered surface which can be fixed by combining the side fixing block 23 and the middle fixing block 22 is increased; if the diameter of the connecting shaft 12 is small, the equally-divided cambered surface is relatively small, so that the cambered surface which can be fixed by combining the side fixing blocks 23 and the middle fixing blocks 22 is reduced, but the combination of the side fixing blocks 23 and the middle fixing blocks 22 corresponds to the angle occupied by the equally-divided cambered surface of the connecting shaft 12, and the combination of multiple groups of middle fixing blocks 22 and side fixing blocks 23 can comprehensively fix the outer wall of the connecting shaft 12 so as to improve the connection stability of the connecting shaft 12 and the external fixing structure 10.
Further, the diameter of the inner wall of the connecting block 29 is equal to the diameter of the outer wall of the connecting shaft 12, so that the stability of the connection between the connecting block 29 and the connecting shaft 12 is improved; the diameter of the outer wall of the connecting block 29 is equal to the diameters of the inner walls of the side fixing blocks 23 and the middle fixing block 22, so that the connection between the middle fixing block 22 and the side fixing block 23 and the connecting block 29 is more compact, and the stability of the application is improved.
Further, as shown in fig. 5, the adjusting structure includes an adjusting plate 14 slidably connected to the fixed bin 9, a plurality of push rods 25 are rotatably connected to the adjusting plate 14, and a plurality of push rods 25 are respectively rotatably connected to the plurality of middle fixed blocks 22; an adjusting screw rod 18 is rotatably connected to the fixed bin 9, and an adjusting knob 15 is fixedly connected to the adjusting screw rod 18; a guide rod 27 is fixedly connected in the fixed bin 9, and the adjusting plate 14 is in sliding connection with the guide rod 27.
When the adjusting structure is used, the adjusting knob 15 drives the adjusting screw rod 18 to rotate, the adjusting screw rod 18 drives the adjusting plate 14 to slide along the guide rod 27, and the adjusting plate 14 drives the middle fixing block 22 to slide along the radial direction of the fixing bin 9 through the push rod 25; the adjusting plate 14 and the push rod 25 synchronously drive the plurality of middle fixing blocks 22 to slide along the radial direction of the fixing bin 9, so that the convenience of the application is improved.
Further, as shown in fig. 4 and 6, the fixed bin 9 is fixedly connected with a sliding rail 16, the sliding rail 16 is slidably connected with a locking block 19, and the sliding rail 16 is provided with a locking assembly matched with the locking block 19; the locking block 19 is rotatably connected with a pair of locking rods 20, and the pair of locking rods 20 are respectively rotatably connected with a pair of connecting rods 21; the locking assembly comprises an extrusion screw rod 17 in threaded connection with the sliding rail 16, and a knob is arranged on the extrusion screw rod 17; an extrusion block 28 is fixedly connected to the extrusion screw 17, and an extrusion groove corresponding to the extrusion block 28 is formed in the locking block 19.
When the connecting rod 21 rotates under the action of the side fixing block 23, the connecting rod 21 drives the locking block 19 to slide along the sliding rail 16 through the locking rod 20; the extrusion screw 17 is driven to rotate by the knob, and the extrusion screw 17 extrudes and fixes the locking block 19 through the extrusion block 28 and the extrusion groove so as to prevent the locking block 19 from moving in a direction away from the connecting shaft 12; namely, the locking block 19 is fixed through the extrusion block 28, the locking block 19 fixes the connecting rod 21 through the locking rod 20, and the connecting rod 21 fixes the side fixing block 23, so that the side fixing block 23 is prevented from deforming, and the stability of the side fixing block 23 is improved.
Further, the connecting spline shaft 13 and the connecting shaft 12 are respectively provided with a fixing hole 31, and the fixing holes 31 are provided with connecting bolts 11 in a penetrating way; the connecting spline shaft 13 and the connecting shaft 12 are connected by the connecting bolt 11 being fitted in the fixing hole 31.
Further, as shown in fig. 1, the frame includes a pair of risers 4 disposed at two sides of the reel 5, and the bottom of each riser 4 is vertically and fixedly connected with a fixing plate 1; the fixing plate 1 is provided with a plurality of fixing holes 31, and the vertical plate 4 is provided with reinforcing ribs matched with the fixing plate 1; a plurality of connecting posts 7 are arranged between the pair of vertical plates 4, a plurality of connecting posts 7 are respectively connected with a mounting bolt in a screwed mode, and connecting holes matched with the mounting bolts are formed in the vertical plates 4.
Further, as shown in fig. 6, the side fixing block 23 is fixedly connected with a sector block 30, and the middle fixing block 22 is provided with a slideway matched with the sector block 30; the side fixing blocks 23 are slid along the slide ways on the middle fixing block 22 by the sector blocks 30.
Further, a central column 26 is fixedly connected in the fixed bin 9, and a trepanning corresponding to the central column 26 is arranged on the adjusting plate 14; the fixed bin 9 is uniformly provided with a plurality of reinforcing columns along the circumference, and the reinforcing columns are arranged between adjacent push rods 25; the strength of the fixed bin 9 can be effectively improved and the stability of the application can be improved through the arrangement of the central column 26 and the reinforcing column.
The working process of the invention is as follows:
When the invention is used, the centering fixing block 22 is adjusted according to the diameter of the connecting shaft 12; the adjusting screw rod 18 is driven to rotate through the adjusting knob 15, the adjusting screw rod 18 drives the adjusting plate 14 to slide along the guide rod 27, and the adjusting plate 14 drives the middle fixing block 22 to slide along the radial direction of the fixing bin 9 through the push rod 25; the middle fixing block 22 drives the side fixing block 23 to synchronously move through the fan-shaped block 30, and in addition, under the action of the connecting rod 21, the side fixing block 23 slides along the middle fixing block 22 along the circumferential direction through the fan-shaped block 30, so that the distance between the side fixing block 23 and the middle fixing block 22 is changed.
The length of the cambered surface which can be fixed on the connecting shaft 12 corresponds to the cambered surface which is equally divided on the periphery of the connecting shaft 12 by combining the middle fixing block 22 with the side fixing block 23, namely, the combination of a plurality of groups of middle fixing blocks 22 and side fixing blocks 23 corresponds to the cambered surface which is equally divided on the periphery of the connecting shaft 12 respectively, so that the stability of the fixing of the connecting shaft 12 by the middle fixing block 22 and the side fixing block 23 is improved, the application can effectively adapt to the diameters of the connecting shafts 12 with various specifications, and the adaptability of the application is improved.
The coupling body 8 and the connecting shaft 12 are concentrically arranged, the connecting spline shaft 13 is matched with a connecting spline groove 33 on the connecting shaft 12, the connecting spline shaft 13 and the connecting shaft 12 are connected through the matching of the connecting bolt 11 and the fixing hole 31, and the coupling body 8 and the connecting shaft 12 are internally connected; meanwhile, the fixing bin 9 drives the middle fixing block 22 and the side fixing block 23 to move, and the middle fixing block 22 and the fixing grooves on the side fixing block 23 are matched with the middle fixing teeth 32 and the side fixing teeth 24 on the connecting block 29, so that external connection of the connecting shaft 12 is realized.
After the middle fixing block 22 and the side fixing block 23 are installed, the extrusion screw 17 is driven to rotate through the knob, and the extrusion screw 17 extrudes and fixes the locking block 19 through the extrusion block 28 and the extrusion groove so as to prevent the locking block 19 from moving in a direction away from the connecting shaft 12; namely, the locking block 19 is fixed through the extrusion block 28, the locking block 19 fixes the connecting rod 21 through the locking rod 20, and the connecting rod 21 fixes the side fixing block 23, so that the side fixing block 23 is prevented from deforming, and the stability of the side fixing block 23 is improved.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411166606.2A CN118684142B (en) | 2024-08-23 | 2024-08-23 | A coupling for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411166606.2A CN118684142B (en) | 2024-08-23 | 2024-08-23 | A coupling for crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118684142A CN118684142A (en) | 2024-09-24 |
| CN118684142B true CN118684142B (en) | 2024-11-12 |
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ID=92768342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411166606.2A Active CN118684142B (en) | 2024-08-23 | 2024-08-23 | A coupling for crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN118684142B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217152711U (en) * | 2022-04-24 | 2022-08-09 | 阜宁德谊精密铸造有限公司 | High accuracy toothed disc with adjustable |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI801368B (en) * | 2017-03-17 | 2023-05-11 | 法商維蘇威法國公司 | Kit of parts for mechanically coupling a ceramic element to a rod and conveyor roller assembly for a conveyor system |
| CN208236935U (en) * | 2018-10-25 | 2018-12-14 | 福建省莆田市永展机械有限公司 | A kind of teeth type rubber elastic coupling |
| CN115372823B (en) * | 2022-08-12 | 2025-01-28 | 苏州海格电控股份有限公司 | Multifunctional motor detection device |
-
2024
- 2024-08-23 CN CN202411166606.2A patent/CN118684142B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217152711U (en) * | 2022-04-24 | 2022-08-09 | 阜宁德谊精密铸造有限公司 | High accuracy toothed disc with adjustable |
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| Publication number | Publication date |
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| CN118684142A (en) | 2024-09-24 |
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