CN112872705A - Special effect repairing method for drying cylinder shaft head - Google Patents
Special effect repairing method for drying cylinder shaft head Download PDFInfo
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- CN112872705A CN112872705A CN202011165038.6A CN202011165038A CN112872705A CN 112872705 A CN112872705 A CN 112872705A CN 202011165038 A CN202011165038 A CN 202011165038A CN 112872705 A CN112872705 A CN 112872705A
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- sleeve
- cleaning
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- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000001035 drying Methods 0.000 title claims abstract description 58
- 230000000694 effects Effects 0.000 title claims abstract description 14
- 238000005299 abrasion Methods 0.000 claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 claims description 46
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- 238000004140 cleaning Methods 0.000 claims description 33
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 6
- 239000012459 cleaning agent Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000002952 polymeric resin Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000012763 reinforcing filler Substances 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000003921 oil Substances 0.000 description 8
- 238000000227 grinding Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention relates to the field of shaft head repairing related equipment, in particular to a special effect repairing method for a drying cylinder shaft head, which comprises an S10 repairing method, an a repairing method and an S20 repairing method, and is characterized in that: two types of repairing methods are selected according to the unilateral abrasion loss of the shaft head: adopting an S10 and a type a repairing method under the condition that the unilateral abrasion loss of the shaft head is less than or equal to 3 mm; and (3) adopting S20 and b repairing methods under the condition that the unilateral abrasion loss of the shaft head is more than 3 mm. According to the special effect repairing method for the shaft head of the drying cylinder, different repairing methods are adopted according to different abrasion conditions of the shaft head of the drying cylinder, the condition that the abrasion of the shaft head is less than or equal to 3mm is repaired by respectively applying the a type repairing method, and the condition that the abrasion of the shaft head is more than 3mm is repaired by the b type repairing method, so that different problems in production are well solved; and the strength of the repaired shaft head is ensured, and meanwhile, the integral replacement of the drying cylinder shaft head or the drying cylinder is avoided, so that the repairing time is greatly shortened, the repairing cost is reduced, an enterprise can recover to normal production as soon as possible, and the loss is reduced.
Description
Technical Field
The invention relates to the field of shaft head repairing related equipment, in particular to a special effect repairing method for a drying cylinder shaft head.
Background
The paper machine drying cylinder is composed of an outer drying cylinder, a transmission side end cover shaft head and an operation side end cover shaft head, the operation side end cover shaft head is fixed on the drying cylinder by using a bolt after being in interference fit with the drying cylinder, a transmission side bearing is a fixed end, so that the grinding phenomenon is less, the grinding phenomenon is more on an operation side moving end, a common end cover and the shaft head are cast into a whole piece, at present, a split type design is also adopted, the shaft head is connected by using a bolt, a locking nut with a bearing position and a positioning bearing is processed on the shaft head, the bearing on the operation side of the drying cylinder is a moving end, because a plurality of production spare parts on the paper machine need to be replaced or maintained regularly, shutdown treatment is needed, the drying cylinder shaft head is stretched and expanded and deformed, the sliding grinding shaft between the bearing position and the inner ring of the bearing is caused, or the grinding shaft is caused by the lack of lubricating oil to be stuck on, however, when the abrasion amount of the grinding shaft is too large, the two bearings of the drying cylinder are not concentric, and in addition, the two bearings and the shaft head and the bearing inner ring slide, so that the vibration of the drying cylinder of the paper machine is large, the speed difference is generated between the upper drying cylinder and the lower drying cylinder, the paper web shakes greatly between the upper drying cylinder and the lower drying cylinder, the paper is wrinkled or broken in the drying cylinder group, the normal production cannot be realized, and the machine is forced to stop.
The drying cylinder is a drying device on a paper machine production line, accounts for about 30% of the total weight of the paper machine, is also a key component on the paper machine production line, cannot be reserved on the production line, and once a problem occurs, the machine must be stopped, if the whole drying cylinder or a drying cylinder end cover shaft head is directly replaced, the consumed time is long (24-36 hours), the labor and equipment cost is high, the normal production of an enterprise is seriously influenced, and in view of the defects of the existing drying cylinder, the existing drying cylinder needs to be improved to perfect the equipment, so that greater convenience is provided for workers.
Disclosure of Invention
The invention aims to provide a special effect repairing method for a drying cylinder shaft head, which aims to solve the problems that the existing drying cylinder on a paper machine in the background technology cannot be used for standby on a production line, once a problem occurs, the shutdown treatment is required, if the whole drying cylinder or the drying cylinder end cover shaft head is directly replaced, the consumed time is long (24-36 hours), the labor and equipment cost is high, and the normal production of an enterprise is seriously influenced.
The technical scheme adopted by the invention is as follows: a special effect repairing method of a drying cylinder shaft head comprises an S10 repairing method and an a repairing method and an S20 repairing method and a b repairing method, and is characterized in that: two types of repairing methods are selected according to the unilateral abrasion loss of the shaft head: adopting an S10 and a type a repairing method under the condition that the unilateral abrasion loss of the shaft head is less than or equal to 3 mm; the method adopts S20 and b type repairing method when the unilateral abrasion loss of the shaft head is more than 3mm, wherein,
the repair method of the type-A and the type-S10 comprises the steps of S101, preliminarily cleaning, checking the abrasion condition of the shaft head, judging whether the shaft head can be repaired or replaced, and if the unilateral abrasion loss of the shaft head is less than or equal to 3mm, continuously executing the following steps;
s102, cleaning oil stains and oil stains on a shaft head of a drying cylinder by using a cleaning cloth, comprehensively cleaning the shaft head by using an RSB-105 low-foam alkaline metal cleaning agent, and intensively cleaning a worn part to ensure that the worn part is wiped dry by using cleaning paper or dry cotton cloth after the natural color of metal is seen;
s103, coating a specially-made metal repairing agent on the cleaned shaft head of the abrasion drying cylinder, compacting by using a special small shovel according to the shape and size of the standard shaft head, removing internal bubbles and ensuring compactness;
s104, coating a release agent on the inner surface of a matched shaft head die sleeve with an open hole on the side surface, slightly sleeving the matched shaft head die sleeve on a shaft head which is coated with a repairing agent and compacted, slightly rotating left and right to ensure that the sleeve is positioned at an original bearing position, and then shoveling off redundant repairing agent by using a special shovel;
s105, retreating to remove the shaft head film sleeve after 30 minutes, scraping the surface of the coating by using a blade according to the hardening degree of the repairing agent, and installing the repairing agent after the repairing agent is hardened (generally for 2-3 hours);
the repairing method of the type S20 and b comprises the steps of S201, preliminarily cleaning and checking the abrasion condition of the shaft head, judging whether the shaft head can be repaired or replaced, and if the unilateral abrasion loss of the shaft head is more than 3mm, continuously executing the following steps;
s202, cleaning oil stains and oil stains on a shaft head of a drying cylinder by using a cleaning cloth, comprehensively cleaning the shaft head by using an RSB-105 low-foam alkaline metal cleaning agent, and intensively cleaning a worn part to ensure that the worn part is wiped dry by using wiping paper or dry cotton cloth after the natural color of metal is seen;
s203, coating a specially-made metal repairing agent on the cleaned shaft head of the abrasion drying cylinder, compacting by using a special small shovel according to the shape and size of the standard shaft head, removing internal bubbles and ensuring compactness;
s204, dividing the processed thin-wall sleeve with appropriate thickness into two halves from the center line, nesting and pressing the two halves on the shaft head coated with the repairing agent, sleeving the opening shaft head mold sleeve on the thin-wall sleeve, and pushing the opening shaft head mold sleeve to a bearing position by using an original locking nut;
s205, drilling a hole from the side hole on the shaft sleeve to the shaft head by using an electric hand drill, wherein the diameter of the drilled hole is 8.5mm, the depth of the drilled hole is 25mm, tapping is performed by M10, the thin-wall sleeve is fixed by using a countersunk head bolt M10 multiplied by 1.5 with the length of 15mm, the bolt surface of the countersunk head bolt is ensured to be 2-3mm lower than that of the thin-wall sleeve, then the countersunk head bolt surface and the thin-wall sleeve are spot-welded by using a small current of an electric welder, the bolt, the shaft head and the repairing agent of the thin-wall sleeve are ensured to be connected and integrated, 4-5 bolts are.
Furthermore, the metal repairing agent is HR8112 which is a combined type metal repairing agent taking polymer resin as a main body and metals and alloys as reinforcing fillers, and the metal repairing agent HR8112 is divided into A, B groups and is prepared and uniformly mixed according to a specific proportion before use.
Furthermore, the release agent is Fm-102 release agent which is a mixture of wax and polyester, has the advantages of liquid wax, and has the advantages of semi-permanent release property and multiple-use release.
Furthermore, the spindle nose die sleeve is a die sleeve customized according to different spindle nose sizes and is divided into a die sleeve with holes opened on the side surface and a die sleeve without holes opened, and spindle nose wear conditions of two different degrees are respectively repaired by applying the die sleeve with holes opened on the side surface and the die sleeve without holes opened on the side surface.
Furthermore, the thin-wall sleeve is made of high-strength metal, is customized according to the specification of the shaft head to be repaired, and is matched with a metal repairing agent HR8112 to repair the condition that the abrasion loss of the shaft head is larger than 3 mm.
The invention has the beneficial effects that:
according to the special effect repairing method for the shaft head of the drying cylinder, different repairing methods are adopted according to different abrasion conditions of the shaft head of the drying cylinder, the condition that the abrasion of the shaft head is less than or equal to 3mm is repaired by respectively applying the a type repairing method, and the condition that the abrasion of the shaft head is more than 3mm is repaired by the b type repairing method, so that different problems in production are well solved; the special-effect repairing method for the shaft head of the drying cylinder ensures the strength of the repaired shaft head, avoids the integral replacement of the shaft head of the drying cylinder or the drying cylinder, greatly shortens the repairing time, reduces the repairing cost, enables an enterprise to recover the normal production as soon as possible, and reduces the loss.
Drawings
FIG. 1 is a view showing a structure of a connection part of a shaft head and a bearing of a drying cylinder;
FIG. 2 is a view of a dryer head structure and a repair part corresponding to the class a repair method;
FIG. 3 is a view of a dryer head structure and a repair part corresponding to the type b repair method;
FIG. 4 is an enlarged view at A in FIG. 2;
fig. 5 is an enlarged view of fig. 3 at B.
The text labels shown in the figures are represented as: 1. an outer drying cylinder; 2. operating a side end cover shaft head; 3. a drying cylinder shaft head; 4. a bearing; 5. locking the nut; 6. a spindle nose wear position; 7. a thin-wall sleeve; 8. a shaft head die sleeve is provided with a hole on the side surface; 9. opening a hole on the side surface of the die sleeve; 10. a shaft head die sleeve without holes is formed; 11. a metal healant repair layer; 12. and (5) a thin-wall sleeve repairing layer.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
As shown in fig. 1 to 5, the specific structure of the present invention is: a special effect repairing method of a drying cylinder shaft head comprises an S10 repairing method and an a repairing method and an S20 repairing method and a b repairing method, and is characterized in that: two types of repairing methods are selected according to the unilateral abrasion loss of the shaft head: adopting an S10 and a type a repairing method under the condition that the unilateral abrasion loss of the shaft head is less than or equal to 3 mm; the method adopts S20 and b type repairing method when the unilateral abrasion loss of the shaft head is more than 3mm, wherein,
the repair method of the type-A and the type-S10 comprises the steps of S101, preliminarily cleaning, checking the abrasion condition of the shaft head, judging whether the shaft head can be repaired or replaced, and if the unilateral abrasion loss of the shaft head is less than or equal to 3mm, continuously executing the following steps;
s102, cleaning oil stains and oil stains on a shaft head of a drying cylinder by using a cleaning cloth, comprehensively cleaning the shaft head by using an RSB-105 low-foam alkaline metal cleaning agent, and intensively cleaning a worn part to ensure that the worn part is wiped dry by using cleaning paper or dry cotton cloth after the natural color of metal is seen;
s103, coating a specially-made metal repairing agent on the cleaned shaft head of the abrasion drying cylinder, compacting by using a special small shovel according to the shape and size of the standard shaft head, removing internal bubbles and ensuring compactness;
s104, coating a release agent on the inner surface of a matched shaft head die sleeve with an open hole on the side surface, slightly sleeving the matched shaft head die sleeve on a shaft head which is coated with a repairing agent and compacted, slightly rotating left and right to ensure that the sleeve is positioned at an original bearing position, and then shoveling off redundant repairing agent by using a special shovel;
s105, retreating to remove the shaft head film sleeve after 30 minutes, scraping the surface of the coating by using a blade according to the hardening degree of the repairing agent, and installing the repairing agent after the repairing agent is hardened (generally for 2-3 hours);
the repairing method of the type S20 and b comprises the steps of S201, preliminarily cleaning and checking the abrasion condition of the shaft head, judging whether the shaft head can be repaired or replaced, and if the unilateral abrasion loss of the shaft head is more than 3mm, continuously executing the following steps;
s202, cleaning oil stains and oil stains on a shaft head of a drying cylinder by using a cleaning cloth, comprehensively cleaning the shaft head by using an RSB-105 low-foam alkaline metal cleaning agent, and intensively cleaning a worn part to ensure that the worn part is wiped dry by using wiping paper or dry cotton cloth after the natural color of metal is seen;
s203, coating a specially-made metal repairing agent on the cleaned shaft head of the abrasion drying cylinder, compacting by using a special small shovel according to the shape and size of the standard shaft head, removing internal bubbles and ensuring compactness;
s204, dividing the processed thin-wall sleeve with appropriate thickness into two halves from the center line, nesting and pressing the two halves on the shaft head coated with the repairing agent, sleeving the opening shaft head mold sleeve on the thin-wall sleeve, and pushing the opening shaft head mold sleeve to a bearing position by using an original locking nut;
s205, drilling a hole from the side hole on the shaft sleeve to the shaft head by using an electric hand drill, wherein the diameter of the drilled hole is 8.5mm, the depth of the drilled hole is 25mm, tapping is performed by M10, the thin-wall sleeve is fixed by using a countersunk head bolt M10 multiplied by 1.5 with the length of 15mm, the bolt surface of the countersunk head bolt is ensured to be 2-3mm lower than that of the thin-wall sleeve, then the countersunk head bolt surface and the thin-wall sleeve are spot-welded by using a small current of an electric welder, the bolt, the shaft head and the repairing agent of the thin-wall sleeve are ensured to be connected and integrated, 4-5 bolts are.
Preferably, the metal healant is HR8112, is a combined metal healant which mainly comprises a polymer resin and mainly comprises metals and alloys as reinforcing fillers, and the metal healant HR8112 is divided into A, B groups and is prepared and uniformly mixed in a specific ratio before use.
Preferably, the release agent is Fm-102 release agent, is a mixture of wax and polyester, has the advantages of liquid wax, and has the advantages of semi-permanent release property and multiple-use release.
Preferably, the axle head die sleeve is a die sleeve customized according to different axle head sizes and is divided into a die sleeve with holes opened on the side surface and a die sleeve without holes, and the abrasion conditions of the axle heads with two different degrees are respectively repaired by applying the die sleeve with holes opened on the side surface and the die sleeve without holes opened on the side surface.
Preferably, the thin-wall sleeve is made of high-strength metal, is customized according to the specification of the shaft head to be repaired, and is matched with a metal repairing agent HR8112 to repair the condition that the abrasion loss of the shaft head is larger than 3 mm.
It should be noted that, in this document, 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.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (5)
1. A special effect repairing method of a drying cylinder shaft head comprises an S10 repairing method and an a repairing method and an S20 repairing method and a b repairing method, and is characterized in that: two types of repairing methods are selected according to the unilateral abrasion loss of the shaft head: adopting an S10 and a type a repairing method under the condition that the unilateral abrasion loss of the shaft head is less than or equal to 3 mm; the method adopts S20 and b type repairing method when the unilateral abrasion loss of the shaft head is more than 3mm, wherein,
the repair method of the type-A and the type-S10 comprises the steps of S101, preliminarily cleaning, checking the abrasion condition of the shaft head, judging whether the shaft head can be repaired or replaced, and if the unilateral abrasion loss of the shaft head is less than or equal to 3mm, continuously executing the following steps;
s102, cleaning oil stains and oil stains on a shaft head of a drying cylinder by using a cleaning cloth, comprehensively cleaning the shaft head by using an RSB-105 low-foam alkaline metal cleaning agent, and intensively cleaning a worn part to ensure that the worn part is wiped dry by using cleaning paper or dry cotton cloth after the natural color of metal is seen;
s103, coating a specially-made metal repairing agent on the cleaned shaft head of the abrasion drying cylinder, compacting by using a special small shovel according to the shape and size of the standard shaft head, removing internal bubbles and ensuring compactness;
s104, coating a release agent on the inner surface of a matched shaft head die sleeve with an open hole on the side surface, slightly sleeving the matched shaft head die sleeve on a shaft head which is coated with a repairing agent and compacted, slightly rotating left and right to ensure that the sleeve is positioned at an original bearing position, and then shoveling off redundant repairing agent by using a special shovel;
s105, retreating to remove the shaft head film sleeve after 30 minutes, scraping the surface of the coating by using a blade according to the hardening degree of the repairing agent, and installing the repairing agent after the repairing agent is hardened (generally for 2-3 hours);
the repairing method of the type S20 and b comprises the steps of S201, preliminarily cleaning and checking the abrasion condition of the shaft head, judging whether the shaft head can be repaired or replaced, and if the unilateral abrasion loss of the shaft head is more than 3mm, continuously executing the following steps;
s202, cleaning oil stains and oil stains on a shaft head of a drying cylinder by using a cleaning cloth, comprehensively cleaning the shaft head by using an RSB-105 low-foam alkaline metal cleaning agent, and intensively cleaning a worn part to ensure that the worn part is wiped dry by using wiping paper or dry cotton cloth after the natural color of metal is seen;
s203, coating a specially-made metal repairing agent on the cleaned shaft head of the abrasion drying cylinder, compacting by using a special small shovel according to the shape and size of the standard shaft head, removing internal bubbles and ensuring compactness;
s204, dividing the processed thin-wall sleeve with appropriate thickness into two halves from the center line, nesting and pressing the two halves on the shaft head coated with the repairing agent, sleeving the opening shaft head mold sleeve on the thin-wall sleeve, and pushing the opening shaft head mold sleeve to a bearing position by using an original locking nut;
s205, drilling a hole from the side hole on the shaft sleeve to the shaft head by using an electric hand drill, wherein the diameter of the drilled hole is 8.5mm, the depth of the drilled hole is 25mm, tapping is performed by M10, the thin-wall sleeve is fixed by using a countersunk head bolt M10 multiplied by 1.5 with the length of 15mm, the bolt surface of the countersunk head bolt is ensured to be 2-3mm lower than that of the thin-wall sleeve, then the countersunk head bolt surface and the thin-wall sleeve are spot-welded by using a small current of an electric welder, the bolt, the shaft head and the repairing agent of the thin-wall sleeve are ensured to be connected and integrated, 4-5 bolts are.
2. The special effect repairing method of the drying cylinder shaft head as claimed in claim 1, characterized in that: the metal repairing agent is HR8112 which is a combined metal repairing agent taking polymer resin as a main body and metal and alloy as reinforcing fillers, wherein the metal repairing agent HR8112 is divided into A, B groups, and the metal repairing agent HR8112 is prepared and uniformly mixed according to a specific proportion before use.
3. The special effect repairing method of the drying cylinder shaft head as claimed in claim 1, characterized in that: the release agent is Fm-102 release agent, is a mixture of wax and polyester, has the advantages of liquid wax, and has the advantages of semi-permanent release property and repeated use and release.
4. The special effect repairing method of the drying cylinder shaft head as claimed in claim 1, characterized in that: the spindle nose die sleeve is a die sleeve customized according to different spindle nose sizes, and is divided into a die sleeve with holes formed in the side surface and a die sleeve without holes, and spindle nose wear conditions of two different degrees are respectively repaired by applying the die sleeve with holes formed in the side surface and the die sleeve without holes.
5. The special effect repairing method of the drying cylinder shaft head as claimed in claim 1, characterized in that: the thin-wall sleeve is made of high-strength metal, is customized according to the specification of the shaft head to be repaired, and is matched with a metal repairing agent HR8112 to repair the condition that the abrasion loss of the shaft head is larger than 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165038.6A CN112872705A (en) | 2020-10-27 | 2020-10-27 | Special effect repairing method for drying cylinder shaft head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011165038.6A CN112872705A (en) | 2020-10-27 | 2020-10-27 | Special effect repairing method for drying cylinder shaft head |
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| Publication Number | Publication Date |
|---|---|
| CN112872705A true CN112872705A (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011165038.6A Pending CN112872705A (en) | 2020-10-27 | 2020-10-27 | Special effect repairing method for drying cylinder shaft head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102046A (en) * | 2021-11-09 | 2022-03-01 | 东风鼎新动力系统科技有限公司 | Oil leakage repairing method for double-clutch transmission shell |
-
2020
- 2020-10-27 CN CN202011165038.6A patent/CN112872705A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102046A (en) * | 2021-11-09 | 2022-03-01 | 东风鼎新动力系统科技有限公司 | Oil leakage repairing method for double-clutch transmission shell |
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