CN220268377U - Oil leakage prevention sealing structure of reduction gearbox - Google Patents
Oil leakage prevention sealing structure of reduction gearbox Download PDFInfo
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- CN220268377U CN220268377U CN202321852493.2U CN202321852493U CN220268377U CN 220268377 U CN220268377 U CN 220268377U CN 202321852493 U CN202321852493 U CN 202321852493U CN 220268377 U CN220268377 U CN 220268377U
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- 238000007789 sealing Methods 0.000 title claims abstract description 206
- 230000009467 reduction Effects 0.000 title claims abstract description 23
- 230000002265 prevention Effects 0.000 title claims abstract description 19
- 230000000670 limiting effect Effects 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims description 60
- 230000006978 adaptation Effects 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 7
- 230000001050 lubricating effect Effects 0.000 abstract description 6
- 239000003638 chemical reducing agent Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 description 11
- 239000003921 oil Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an oil leakage prevention sealing structure of a reduction gearbox, and belongs to the field of reduction gearboxes. The oil leakage prevention sealing structure of the reduction gearbox comprises a device shell, wherein an output shaft is arranged on one side of the outer part of the device shell, and an input shaft is arranged at the front end of the outer part of the device shell; one side of the two fixed sealing rings is provided with a third sealing plate, one side of the outer part of the third sealing plate is provided with an installation groove, one side of the outer part of the installation groove is provided with a limiting sealing ring, and the other side of the third sealing plate is provided with a fixed ring. The utility model solves the problem that the prior oil leakage prevention speed reducer high-speed shaft device only limits one side of the oil leakage prevention of the output shaft and the input shaft, and can cause the condition that lubricating fluid still has loss.
Description
Technical Field
The utility model relates to the field of reduction boxes, in particular to an oil leakage prevention sealing structure of a reduction box.
Background
The reduction gearbox is a mechanical device for reducing the rotating speed of mechanical equipment, and converts high-rotating-speed power into low rotating speed in a mechanical way so as to meet the requirements of specific applications, and is usually composed of a gear box, a gear, a bearing and other parts, so that a high-precision reduction ratio can be provided, the reduction gearbox can be used for various mechanical equipment, such as automobiles, agricultural machinery, cranes, hydraulic pumps, motors and the like, the reduction gearbox needs to smear lubricating oil on the positions of an output shaft and an input shaft in the actual transmission process, and in order to avoid faster drying and solidification of the lubricating oil, an oil leakage prevention sealing structure is often arranged and installed at the positions of the output shaft and the input shaft;
chinese patent publication No. CN214617776U discloses a wear-proof leak-proof oil reduction gearbox high-speed shaft device, including part setting up the high-speed shaft that sets up outside the gearbox in the gearbox, fix the aligning bearing of high-speed shaft, prevent grey dirt-proof skeleton sealing washer and fix the gland of aligning bearing installation skeleton sealing washer, aligning bearing circumference sets up between high-speed shaft and gearbox, the skeleton sealing washer sets up in the outside of aligning shaft and around high-speed shaft circumference setting, be equipped with a bush between skeleton sealing washer and the high-speed shaft, bush and high-speed shaft interference fit static seal, form rotary seal with the skeleton sealing washer in order to prevent that lubricating oil from spilling outside the gearbox along high-speed shaft.
In the practical use process of the oil leakage prevention reduction gearbox high-speed shaft device, oil leakage prevention of the output shaft and the input shaft is limited on one side only, and the limited side can enable internal lubricating oil to flow towards the inside of the device, so that the lubricating liquid still has a lost state; therefore, the prior requirements are not met, and an oil leakage prevention sealing structure of the reduction gearbox is provided.
Disclosure of Invention
The utility model aims to provide an oil leakage prevention sealing structure of a reduction gearbox, which is characterized in that the outside of an output shaft and the two sides outside a rotating connecting ring are respectively limited by the joint of a limiting sealing ring and a third sealing plate and the joint of a first sealing plate and a second sealing plate, so that the lubricating oil loss of a transmission position can be avoided, the lubricating oil is wrapped, the service life of the whole device is prolonged, the lubricating force of the output shaft and an input shaft is improved in the rotating process, the rising of friction coefficient caused by the solidification and loss of the lubricating agent is avoided, the transmission effect and the transmission efficiency are improved, and the problems in the background art are solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the oil leakage prevention sealing structure of the reduction gearbox comprises a device shell, wherein an output shaft is arranged on one side of the outer part of the device shell, and an input shaft is arranged at the front end of the outer part of the device shell;
still include fixed sealing ring, it sets up in the outside one side of output shaft and input shaft, and fixed sealing ring's inside all with the outside welded fastening of corresponding output shaft and input shaft, two fixed sealing ring's one side is provided with the third sealing piece, and third sealing piece and fixed sealing ring welded fastening, the outside one side of third sealing piece is provided with mounting groove, and mounting groove embedding and extend to the inside of device shell, the outside one side of mounting groove is provided with restriction sealing ring, and restriction sealing ring is connected with the mounting groove draw-in groove, the opposite side of third sealing piece is provided with solid fixed ring, gu fixed ring's opposite side is provided with the fourth sealing piece.
Preferably, the inside annular of fourth sealing piece is provided with five embedding through-holes, five embedding through-holes all imbeds the inside of solid fixed ring, the inside annular of restriction sealing ring is provided with five and runs through the through-hole, and five run through the through-hole runs through and extends to the both ends of restriction sealing ring, the inside of running through-hole is provided with the transmission screw bolt, and the outside of transmission screw bolt respectively with the inside screw fit of running through-hole and embedding through-hole, the one end of transmission screw bolt is provided with the second transmission piece, one side between second transmission piece and the transmission screw bolt is provided with presses the limit film, and presses and welds fixedly in proper order between limit film, second transmission piece and the transmission screw bolt.
Preferably, a fifth sealing piece is arranged on the other side of the fourth sealing piece, the fifth sealing piece is fixed with the fixing ring in a welding mode, the fixing ring is fixedly connected with the device shell through bolts, a rotary connecting ring is arranged on the other side of the fifth sealing piece, a second sealing piece is arranged on the other side of the rotary connecting ring, and a first sealing piece is arranged on the other side of the second sealing piece.
Preferably, a first limiting protruding block is arranged on one side between the first sealing piece and the second sealing piece, a second limiting protruding block is arranged on the other side between the first sealing piece and the second sealing piece, the second limiting protruding block is fixedly welded with the second sealing piece, the first limiting protruding block is fixedly welded with the first sealing piece, a second adapting groove is arranged on one side outside the first limiting protruding block, a first adapting groove is arranged on one side outside the second limiting protruding block, the first adapting groove is embedded into the first sealing piece, and the second adapting groove is embedded into the second sealing piece.
Preferably, two sides of the limiting sealing ring, the third sealing piece, the fixing ring, the fourth sealing piece, the fifth sealing piece, the rotating connecting ring, the second sealing piece, the first limiting protruding block, the second limiting protruding block and the first sealing piece are respectively parallel to each other, and two sides of the limiting sealing ring, the third sealing piece, the fixing ring, the fourth sealing piece, the fifth sealing piece, the rotating connecting ring, the second sealing piece, the first limiting protruding block, the second limiting protruding block and the first sealing piece are not contacted with each other.
Preferably, one end of the output shaft is provided with a transmission threaded rod, the lower end of the outer portion of the transmission threaded rod is provided with a transmission gear, the outer portion of the transmission gear is connected with the outer portion of the transmission threaded rod in a meshed mode, a first transmission block is arranged in the transmission gear, the first transmission block is located on the other side of the outer portion of the input shaft, and the transmission gear, the first transmission block and the input shaft are welded and fixed sequentially.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the fixed sealing rings are arranged on one sides of the outer parts of the output shaft and the input shaft, the third sealing piece is arranged at one end of the fixed sealing ring, the limiting sealing ring is arranged on one side of the outer part of the third sealing piece, and the fourth sealing piece is arranged on the other side of the outer part of the third sealing piece.
2. According to the utility model, the mounting groove is formed in one side of the outer part of the limiting sealing ring, the third sealing piece is arranged on one side of the mounting groove, the fourth sealing piece is arranged on one side of the third sealing piece, the fifth sealing piece is arranged on one side of the fourth sealing piece, when the output shaft is actually mounted and dismounted, the third sealing piece and the second sealing piece can be directly driven to be embedded into the device through the output shaft, the second limiting protruding block can be close to the first sealing piece while being embedded, after the second limiting protruding block is embedded and limited, the limiting sealing ring is attached to the third sealing piece and is limited to the inner part of the mounting groove, and finally the fixing can be completed through the transmission threaded bolt, the fixing can be completed through sliding mounting from outside, the mounting mode is convenient, the same dismounting mode is convenient, and the maintenance and the filling of lubricating oil are convenient.
Drawings
FIG. 1 is a perspective view of the overall exterior structure of the present utility model;
FIG. 2 is a cross-sectional view of the internal structure of the device housing of the present utility model;
fig. 3 is an enlarged view of a portion of the area a of fig. 2 in accordance with the present utility model.
In the figure: 1. a device housing; 2. an output shaft; 3. an input shaft; 4. fixing the sealing ring; 5. driving a threaded rod; 6. a transmission gear; 7. a first transmission block; 8. limiting the sealing ring; 9. a through hole; 10. embedding the through holes; 11. a drive screw bolt; 12. a second transmission block; 13. pressing the limiting sheet; 14. a first sealing sheet; 15. a second sealing sheet; 16. a first limiting projection; 17. a second limiting projection; 18. a first fitting groove; 19. a second fitting groove; 20. rotating the connecting ring; 21. a mounting groove; 22. a third sealing sheet; 23. a fourth sealing sheet; 24. a fifth sealing sheet; 25. a fixing ring; 26. and (5) a bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order to solve the problem that the lubricating fluid still has a lost condition due to the fact that the internal lubricating oil flows towards the inside of the device due to the limitation of the output shaft and the input shaft, the anti-oil leakage speed reducer is limited only on one side, and the following technical scheme is provided in the embodiment referring to fig. 1, 2 and 3:
the oil leakage prevention sealing structure of the reduction gearbox comprises a device shell 1, wherein one side of the outer part of the device shell 1 is provided with an output shaft 2, and the front end of the outer part of the device shell 1 is provided with an input shaft 3; the device further comprises a fixed sealing ring 4 which is arranged on one side of the outer parts of the output shaft 2 and the input shaft 3, wherein the inner parts of the fixed sealing rings 4 are welded and fixed with the corresponding outer parts of the output shaft 2 and the input shaft 3, one side of each fixed sealing ring 4 is provided with a third sealing sheet 22, each third sealing sheet 22 is welded and fixed with the fixed sealing ring 4, one side of the outer part of each third sealing sheet 22 is provided with a mounting groove 21, each mounting groove 21 is embedded into and extends to the inner part of the device shell 1, one side of the outer part of each mounting groove 21 is provided with a limiting sealing ring 8, each limiting sealing ring 8 is connected with a clamping groove of the corresponding mounting groove 21, the other side of each third sealing sheet 22 is provided with a fixed ring 25, the other side of each fixed ring 25 is provided with a fourth sealing sheet 23, five embedded through holes 10 are annularly arranged in the inner part of each fourth sealing sheet 23, five through holes 9 are annularly arranged in the limiting sealing ring 8, the five through holes 9 penetrate and extend to two ends of the limiting sealing ring 8, a transmission threaded bolt 11 is arranged in the through holes 9, the outer part of the transmission threaded bolt 11 is respectively matched with the inner threads of the through holes 9 and the embedded through holes 10, one end of the transmission threaded bolt 11 is provided with a second transmission block 12, one side between the second transmission block 12 and the transmission threaded bolt 11 is provided with a pressing limiting sheet 13, the second transmission block 12 and the transmission threaded bolt 11 are sequentially welded and fixed, the other side of a fourth sealing sheet 23 is provided with a fifth sealing sheet 24, the fifth sealing sheet 24 is welded and fixed with a fixed ring 25, the fixed ring 25 is fixedly connected with the device shell 1 through bolts 26, the other side of the fifth sealing sheet 24 is provided with a rotary connecting ring 20, the other side of the rotary connecting ring 20 is provided with a second sealing sheet 15, the opposite side of second sealing piece 15 is provided with first sealing piece 14, one side between first sealing piece 14 and the second sealing piece 15 is provided with first restriction protrusion piece 16, the opposite side between first sealing piece 14 and the second sealing piece 15 is provided with second restriction protrusion piece 17, and second restriction protrusion piece 17 and second sealing piece 15 welded fastening, first restriction protrusion piece 16 and first sealing piece 14 welded fastening, one side of the outside of first restriction protrusion piece 16 is provided with second adaptation recess 19, one side of the outside of second restriction protrusion piece 17 is provided with first adaptation recess 18, and the inside of first adaptation recess 18 embedding first sealing piece 14, the laminating of second adaptation recess 19 embedding second sealing piece 15, by the laminating of restriction sealing ring 8 and third sealing piece 22 mutually, limit the outside of output shaft 2 and the outside both sides of rotation collar 20 respectively, the restriction can avoid the lubricating oil loss of transmission position, parcel and the holistic life of device, make output shaft 2 and input shaft 3 obtain the lubrication coefficient in the promotion and the transmission coefficient of improvement, the transmission coefficient of the transmission coefficient and the solidification coefficient of the transmission is improved.
In order to solve the problem that the existing sealing structure is difficult to install and detach, please refer to fig. 1, 2 and 3, the present embodiment provides the following technical solutions:
the two sides of the limiting sealing ring 8, the third sealing piece 22, the fixed ring 25, the fourth sealing piece 23, the fifth sealing piece 24, the rotating connecting ring 20, the second sealing piece 15, the first limiting protruding block 16, the second limiting protruding block 17 and the first sealing piece 14 are respectively parallel to each other, the two sides of the limiting sealing ring 8, the third sealing piece 22, the fixed ring 25, the fourth sealing piece 23, the fifth sealing piece 24, the rotating connecting ring 20, the second sealing piece 15, the first limiting protruding block 16, the second limiting protruding block 17 and the first sealing piece 14 are not contacted with each other, one end of the output shaft 2 is provided with a transmission threaded rod 5, the lower end of the outer part of the transmission threaded rod 5 is provided with a transmission gear 6, the outer part of the transmission gear 6 is meshed with the outer part of the transmission threaded rod 5, the inside of drive gear 6 is provided with first transmission piece 7, first transmission piece 7 is located the outside opposite side of input shaft 3, and welded fastening in proper order between drive gear 6, first transmission piece 7 and the input shaft 3, can directly drive inside third sealing piece 22 and the second sealing piece 15 embedding device through output shaft 2, can make second restriction bulge 17 be close to first sealing piece 14 when the embedding, behind the embedding and restriction, restriction sealing ring 8 laminating third sealing piece 22 and restriction mounting groove 21 inside, and finally run through by transmission threaded bolt 11 and accomplish fixedly, it is fixed to slide the installation from outside, the mounting means is convenient, and the dismantlement mode is convenient equally, be convenient for overhaul and fill lubricating oil.
Working principle: when the device is used and the lubrication position of the reduction gearbox is wrapped, according to fig. 1, 2 and 3, in order to improve the sealing and limiting effect on lubricating oil, the output shaft 2 and the input shaft 3 can be directly embedded into the device housing 1, the embedding can directly drive the externally connected second sealing piece 15 to move towards the first sealing piece 14, the second sealing piece 15 continuously and transversely moves, the fixing ring 25 is positioned between the third sealing piece 22 and the fourth sealing piece 23 and is installed towards the device housing 1 along with the output shaft 2, the rotating connecting ring 20 is positioned between the second sealing piece 15 and the fixing ring 25 and is installed towards the device housing 1 along with the output shaft 2, the fourth sealing piece 23 is placed in parallel on one side of the fifth sealing piece 24, the limiting sealing ring 8 is embedded into the mounting groove 21 and is parallel on one side of the third sealing piece 22, the transmission threaded bolt 11 sequentially penetrates through the penetrating through hole 9 and the embedding through hole 10 and completes the fixation between the limiting sealing ring 8 and the fixing ring 25, the bolt 26 penetrates through the fixing ring 25 and is embedded into the device shell 1 to complete the fixation of the fixing ring 25, the fixing is carried out, the limiting sealing ring 8, the third sealing piece 22, the fixing ring 25, the fourth sealing piece 23, the fifth sealing piece 24, the second sealing piece 15 and the first sealing piece 14 are parallel to each other but are not contacted, the lubricating positions on two sides of the rotating connecting ring 20 can be wrapped and limited, the lubricating liquid is prevented from leaking outwards, in order to enable the device to be convenient to install and detach, in the process of installation and detachment, the limiting sealing ring 8, the fixing ring 25, the fourth sealing piece 23, the rotating connecting ring 20 and the second sealing piece 15 can be directly and sequentially removed through sliding, the detachment and installation mode is convenient, the maintenance and the installation of the maintenance personnel are convenient.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a reducing gear box leak protection oil seal structure, includes device shell (1), one side of device shell (1) outside is provided with output shaft (2), and the front end of device shell (1) outside is provided with input shaft (3), its characterized in that:
still include fixed sealing ring (4), it sets up in the outside one side of output shaft (2) and input shaft (3), and the inside of fixed sealing ring (4) all with the outside welded fastening of corresponding output shaft (2) and input shaft (3), two one side of fixed sealing ring (4) is provided with third sealing plate (22), and third sealing plate (22) and fixed sealing ring (4) welded fastening, one side of third sealing plate (22) outside is provided with mounting groove (21), and mounting groove (21) embedding and extend to the inside of device shell (1), one side of mounting groove (21) outside is provided with restriction sealing ring (8), and restriction sealing ring (8) are connected with mounting groove (21) draw-in groove, the opposite side of third sealing plate (22) is provided with solid fixed ring (25), the opposite side of solid fixed ring (25) is provided with fourth sealing plate (23).
2. The oil leakage prevention sealing structure of a reduction gearbox according to claim 1, wherein: the inside annular of fourth sealing washer (23) is provided with five embedding through-holes (10), and is five the inside of embedding through-hole (10) all embedding solid fixed ring (25), the inside annular of restriction sealing ring (8) is provided with five through-holes (9), and is five run through-hole (9) run through and extend to the both ends of restriction sealing ring (8), the inside of running through-hole (9) is provided with transmission threaded bolt (11), and the outside of transmission threaded bolt (11) respectively with the inside screw fit of running through-hole (9) and embedding through-hole (10), the one end of transmission threaded bolt (11) is provided with second transmission piece (12), one side between second transmission piece (12) and the transmission threaded bolt (11) is provided with presses restriction piece (13), and presses between restriction piece (13), second transmission piece (12) and the transmission threaded bolt (11) welded fastening in proper order.
3. The oil leakage prevention sealing structure of a reduction gearbox according to claim 1, wherein: the opposite side of fourth sealing piece (23) is provided with fifth sealing piece (24), fifth sealing piece (24) and solid fixed ring (25) welded fastening, pass through bolt (26) fixed connection between solid fixed ring (25) and device shell (1), the opposite side of fifth sealing piece (24) is provided with rotation go-between (20), the opposite side of rotation go-between (20) is provided with second sealing piece (15), the opposite side of second sealing piece (15) is provided with first sealing piece (14).
4. A reduction gearbox oil leakage prevention sealing structure according to claim 3, wherein: one side between first sealing piece (14) and second sealing piece (15) is provided with first restriction protruding block (16), the opposite side between first sealing piece (14) and second sealing piece (15) is provided with second restriction protruding block (17), and second restriction protruding block (17) and second sealing piece (15) welded fastening, first restriction protruding block (16) and first sealing piece (14) welded fastening, one side of the outside of first restriction protruding block (16) is provided with second adaptation recess (19), one side of the outside of second restriction protruding block (17) is provided with first adaptation recess (18), and the inside of first sealing piece (14) is inlayed to first adaptation recess (18), the inside of second sealing piece (15) is inlayed to second adaptation recess (19).
5. The oil leakage prevention sealing structure of a reduction gearbox according to claim 1, wherein: the two sides of the limiting sealing ring (8), the third sealing piece (22), the fixing ring (25), the fourth sealing piece (23), the fifth sealing piece (24), the rotating connecting ring (20), the second sealing piece (15), the first limiting protruding block (16), the second limiting protruding block (17) and the first sealing piece (14) are respectively parallel to each other, and the two sides of the limiting sealing ring (8), the third sealing piece (22), the fixing ring (25), the fourth sealing piece (23), the fifth sealing piece (24), the rotating connecting ring (20), the second sealing piece (15), the first limiting protruding block (16), the second limiting protruding block (17) and the first sealing piece (14) are not contacted with each other.
6. The oil leakage prevention sealing structure of a reduction gearbox according to claim 1, wherein: one end of output shaft (2) is provided with drive threaded rod (5), the outside lower extreme of drive threaded rod (5) is provided with drive gear (6), and the outside of drive gear (6) is connected with the outside meshing of drive threaded rod (5), the inside of drive gear (6) is provided with first transmission piece (7), first transmission piece (7) are located the outside opposite side of input shaft (3), and welded fastening in proper order between drive gear (6), first transmission piece (7) and input shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321852493.2U CN220268377U (en) | 2023-07-14 | 2023-07-14 | Oil leakage prevention sealing structure of reduction gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321852493.2U CN220268377U (en) | 2023-07-14 | 2023-07-14 | Oil leakage prevention sealing structure of reduction gearbox |
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| Publication Number | Publication Date |
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| CN220268377U true CN220268377U (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321852493.2U Active CN220268377U (en) | 2023-07-14 | 2023-07-14 | Oil leakage prevention sealing structure of reduction gearbox |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118128888A (en) * | 2024-05-06 | 2024-06-04 | 长春电子科技学院 | Oil leakage-proof gear transmission box |
-
2023
- 2023-07-14 CN CN202321852493.2U patent/CN220268377U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118128888A (en) * | 2024-05-06 | 2024-06-04 | 长春电子科技学院 | Oil leakage-proof gear transmission box |
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