CN109357009B - Wedge ring assembly fixture in thin-wall shell sealing plug - Google Patents
Wedge ring assembly fixture in thin-wall shell sealing plug Download PDFInfo
- Publication number
- CN109357009B CN109357009B CN201811576441.0A CN201811576441A CN109357009B CN 109357009 B CN109357009 B CN 109357009B CN 201811576441 A CN201811576441 A CN 201811576441A CN 109357009 B CN109357009 B CN 109357009B
- Authority
- CN
- China
- Prior art keywords
- flat copper
- copper bar
- groove
- thin
- positioning pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 46
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 75
- 229910052802 copper Inorganic materials 0.000 claims abstract description 75
- 239000010949 copper Substances 0.000 claims abstract description 75
- 238000003780 insertion Methods 0.000 claims description 33
- 230000037431 insertion Effects 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 10
- 230000002706 hydrostatic effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a wedge ring assembly fixture in a thin-wall shell sealing plug, which solves the problem of how to assemble a wedge ring between the plug and a port of the thin-wall shell to resist high water pressure in a water pressure test. The upper rectangular pad plate (2) is arranged on the upper top surface of the lower rectangular pad plate (1), a square strip-shaped groove (4) is arranged on the lower bottom surface of the upper rectangular pad plate (2), the upper rectangular pad plate (2) is arranged on the upper top surface of the lower rectangular pad plate (1), flat copper strips (7) are movably arranged in strip-shaped through hole grooves formed by the square strip-shaped groove (3) and the square strip-shaped groove (4), positioning pin inserting through holes (5) are uniformly arranged on the top surface of the upper rectangular pad plate (2) at intervals, the lower ends of the positioning pin inserting through holes (5) are communicated with the square strip-shaped groove (4), and positioning pins (8) are movably inserted into the positioning pin inserting through holes (5). The hydraulic test pressing requirement of the thin-wall shell is met.
Description
Technical Field
The invention relates to an assembly fixture for a thin-wall shell in a water pressure test, in particular to an assembly fixture and an assembly method for assembling a wedge ring on a sealing plug after the sealing plug is arranged on a port of the thin-wall shell in the water pressure test of the thin-wall shell.
Background
After the thin-walled shell is finished, it is subjected to a hydrostatic test of 20 mpa to detect if the shell is subject to leakage, damage or other anomalies. Because the thin-wall shell is a pipe product, one end is a seal head, when in hydraulic pressure test, the other end of the shell is required to be provided with a sealing plug to seal the inner cavity of the shell, because the inner wall of the thin-wall shell is a smooth surface and cannot be provided with threads, the common threaded connection plug cannot be implemented, the corresponding sealing plug is designed on site to realize the connection between the plug and the shell, the outer side surface of the sealing plug is provided with three grooves, O-shaped sealing rings are assembled in the two grooves on the inner side, the plug provided with the two sealing rings is assembled on the other port of the shell, then a copper assembly wedge ring is inserted between the plug and the inner side wall of the other port of the shell through a reserved wedge ring assembly opening on the plug, so that the plug and the other port of the shell form wedge-shaped tensioning fit, and the reliable sealing of the plug in the high hydraulic pressure test in the shell is ensured. The wedge ring is an annular sealing body formed by inserting a copper flat copper strip into a third groove of the plug, the thickness of the head of the flat copper strip is 1 mm, the width of the flat copper strip is 1.5 mm, the thickness of the middle part is 1.36 mm, the width of the middle part is 3 mm, the length of the middle part is 244 mm, and the length of the flat copper strip is larger than the circumference of the third groove on the plug, so that the two ends of the flat copper strip are provided with allowance after the flat copper strip is put into the plug for one circle; however, because the flat copper strip is narrow in width, thin in thickness and long in insertion length, how to insert the flat copper strip into the third groove through the assembly port on the plug, which is communicated with the third groove, so that the plug and the thin-wall port form a wedge-shaped tight fit to resist high water pressure, and the problem to be solved in the field is urgent.
Disclosure of Invention
The invention provides a wedge ring assembly tool and an assembly method in a thin-wall shell sealing plug, which solve the technical problem of how to assemble a wedge ring between the plug and a port of the thin-wall shell to resist high water pressure in a water pressure test.
The invention solves the technical problems by the following technical proposal:
The utility model provides a wedge ring assembly fixture in the sealed end cap of thin wall casing, including lower rectangle pad piece, go up rectangle pad piece, thin wall casing, end cap and flat copper bar, the end cap sets up on the shutoff mouth of thin wall casing, be provided with first sealing washer embedded groove on the lateral surface of end cap respectively, second sealing washer embedded groove and wedge ring embedded groove, be provided with flat copper bar inserted hole on the thin wall casing lateral wall in the shutoff mouth outside of thin wall casing, flat copper bar inserted hole and wedge ring embedded groove intercommunication together, be provided with square strip recess below on the top surface of lower rectangle pad piece, be provided with square strip recess on the lower bottom surface of last rectangle pad piece, upper rectangle pad piece sets up on the top surface of lower rectangle pad piece, connecting bolt links together square pad piece and last rectangle pad piece down, square strip recess is the rectangular through-hole groove that constitutes with square strip recess down is provided with flat copper bar, be provided with the locating pin inserted through-hole in the equal interval in the direction of square strip recess of top surface along upper, the locating pin inserted through-hole is in the locating pin is in the movable pin inserting through-hole.
The right end of the flat copper bar is in butt joint with the locating pin inserted into the locating pin insertion through hole, the left end of the flat copper bar extending to the outer side of the left end of the lower rectangular pad block is inserted into the flat copper bar insertion port, a first sealing ring is arranged in the first sealing ring embedding groove, and a second sealing ring is arranged in the second sealing ring embedding groove.
A wedge ring assembly method in a thin-wall shell sealing plug comprises the following steps:
the method comprises the steps that firstly, a plug is arranged on a plugging port of a thin-wall shell, a first sealing ring embedding groove, a second sealing ring embedding groove and a wedge ring embedding groove are respectively formed in the outer side face of the plug, a flat copper bar inserting port is formed in the side wall of the thin-wall shell outside the plugging port of the thin-wall shell, and the flat copper bar inserting port is communicated with the wedge ring embedding groove;
Secondly, arranging a lower square strip-shaped groove on the top surface of the lower rectangular pad plate, arranging an upper square strip-shaped groove on the lower bottom surface of the upper rectangular pad plate, arranging the upper rectangular pad plate on the upper top surface of the lower rectangular pad plate, connecting the lower rectangular pad plate and the upper rectangular pad plate together by connecting bolts, wherein the lower square strip-shaped groove is correspondingly arranged with the upper square strip-shaped groove, and arranging positioning pin inserting through holes on the top surface of the upper rectangular pad plate at equal intervals along the direction of the upper square strip-shaped groove;
Thirdly, inserting a locating pin into a locating pin insertion through hole at the rightmost end, inserting a flat copper bar into a strip hole formed by a lower strip-shaped groove and an upper strip-shaped groove, enabling the right end of the flat copper bar to be abutted with the locating pin inserted into the locating pin insertion through hole, inserting the left end of the flat copper bar extending out of the left end of a lower rectangular pad plate into a flat copper bar insertion hole on a thin-wall shell, knocking the right side surface of a cushion block formed by the lower rectangular pad plate and an upper rectangular pad plate by using a hammer, and embedding the left end of the flat copper bar into a wedge ring embedding groove;
Fourthly, moving the cushion block rightward to enable the flat copper bar to extend outwards for a certain distance from the cushion block, pulling out the positioning pin from the positioning pin insertion through hole at the rightmost end, inserting the positioning pin into the positioning pin insertion through hole at the left side of the positioning pin insertion through hole at the rightmost end, enabling the right end of the flat copper bar to be abutted with the positioning pin inserted into the positioning pin insertion through hole, knocking the right side surface of the cushion block formed by the lower rectangular cushion block and the upper rectangular cushion block by using a hammer, and continuously embedding the left end head of the flat copper bar into the wedge ring embedding groove;
And fifthly, repeating the fourth step to enable the flat copper bars to enter the wedge ring embedded grooves section by section until the left end heads of the flat copper bars are exposed from the flat copper bar inserting ports, so that wedge rings are formed between the plugs and the plugging ports of the thin-wall shell.
The invention meets the hydraulic test pressing requirement of the thin-wall shell, solves the sealing problem of non-screw connection by arranging the wedge ring and the corresponding sealing plug, and realizes limit and double sealing protection.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural view of the plug 10 of the present invention;
FIG. 3 is a schematic view of a pad block comprising a lower rectangular pad block 1 and an upper rectangular pad block 2 according to the present invention;
Fig. 4 is a schematic view of the structure of the flat copper bar 7 of the present invention;
Fig. 5 is a schematic view of the flat copper bar 7 of the present invention in a plan view.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
The utility model provides a wedge ring assembly fixture in the sealed end cap of thin wall casing, including lower rectangle pad piece 1, upper rectangle pad piece 2, thin wall casing 9, end cap 10 and flat copper bar 7, end cap 10 sets up on the shutoff mouth of thin wall casing 9, be provided with first sealing washer embedded groove 11 on the lateral surface of end cap 10 respectively, second sealing washer embedded groove 12 and wedge ring embedded groove 13, be provided with flat copper bar inserted hole 14 on the thin wall casing lateral wall outside the shutoff mouth of thin wall casing 9, flat copper bar inserted hole 14 and wedge ring embedded groove 13 intercommunication together, be provided with square strip recess 3 on the top surface of lower rectangle pad piece 1, be provided with square strip recess 4 on the lower bottom surface of upper rectangle pad piece 2, upper rectangle pad piece 2 sets up on the upper top surface of lower rectangle pad piece 1, connecting bolt 6 links together square pad piece 1 and upper rectangle pad piece 2 down, square strip recess 3 is the rectangular through-hole groove that constitutes with square strip recess 4 is provided with flat copper bar 7 in the activity, square strip pad piece 2 is inserted to square strip recess 5 and is equipped with the locating pin 5 and is connected together in the locating pin 5 along square through-hole 5 in the upper square through-hole that the upper square groove 4 is inserted.
The right end of the flat copper bar 7 is abutted with the positioning pin 8 inserted into the positioning pin insertion through hole 5, the left end of the flat copper bar 7 extending to the outer side of the left end of the lower rectangular pad block 1 is inserted into the flat copper bar insertion hole 14, a first sealing ring is arranged in the first sealing ring embedding groove 11, and a second sealing ring is arranged in the second sealing ring embedding groove 12.
A wedge ring assembly method in a thin-wall shell sealing plug comprises the following steps:
The method comprises the steps that firstly, a plug 10 is arranged on a plugging port of a thin-wall shell 9, a first sealing ring embedded groove 11, a second sealing ring embedded groove 12 and a wedge ring embedded groove 13 are respectively arranged on the outer side surface of the plug 10, a flat copper bar inserting port 14 is arranged on the side wall of the thin-wall shell outside the plugging port of the thin-wall shell 9, and the flat copper bar inserting port 14 is communicated with the wedge ring embedded groove 13;
Secondly, arranging lower square strip grooves 3 on the top surface of the lower rectangular pad plate block 1, arranging upper square strip grooves 4 on the lower bottom surface of the upper rectangular pad plate block 2, arranging the upper rectangular pad plate block 2 on the upper top surface of the lower rectangular pad plate block 1, connecting the lower rectangular pad plate block 1 and the upper rectangular pad plate block 2 together by connecting bolts 6, wherein the lower square strip grooves 3 are correspondingly arranged with the upper square strip grooves 4, and arranging positioning pin insertion through holes 5 on the top surface of the upper rectangular pad plate block 2 at equal intervals along the direction of the upper square strip grooves 4;
Thirdly, inserting a locating pin 8 into a locating pin insertion through hole 5 at the rightmost end, inserting a flat copper bar 7 into a strip hole formed by a lower strip-shaped groove 3 and an upper strip-shaped groove 4, enabling the right end of the flat copper bar 7 to be abutted with the locating pin 8 inserted into the locating pin insertion through hole 5, inserting the left end of the flat copper bar 7 extending out of the left end of the lower rectangular pad plate 1 into a flat copper bar insertion hole 14 on the thin-wall shell 9, then knocking the right side surface of a cushion block formed by the lower rectangular pad plate 1 and the upper rectangular pad plate 2 by a hammer, and embedding the left end head of the flat copper bar 7 into a wedge ring embedding groove 13;
Fourthly, moving the cushion block to the right, enabling the flat copper bar 7 to extend outwards for a certain distance from the cushion block, pulling out the positioning pin 8 from the positioning pin insertion through hole 5 at the rightmost end, inserting the positioning pin 8 into the positioning pin insertion through hole at the left side of the positioning pin insertion through hole at the rightmost end, enabling the right end of the flat copper bar 7 to be abutted with the positioning pin 8 inserted into the positioning pin insertion through hole, knocking the right side surface of the cushion block formed by the lower rectangular cushion block 1 and the upper rectangular cushion block 2 by using a hammer, and continuously embedding the left end head of the flat copper bar 7 into the wedge ring embedding groove 13;
Step five, repeating the step four, so that the flat copper bar 7 enters the wedge ring embedding groove 13 section by section until the left end head of the flat copper bar 7 is exposed from the flat copper bar inserting opening 14, and a wedge ring is formed between the plug 10 and the plugging opening of the thin-wall shell 9;
And sixthly, after the hydrostatic test is finished, the flat copper bar 7 is pulled out from the wedge ring embedded groove 13, and the plug 10 can be conveniently detached from the plugging port of the thin-wall shell 9.
Claims (2)
1. The wedge ring assembly method in the thin-wall shell sealing plug is carried out through a wedge ring assembly tool, the wedge ring assembly tool comprises a lower rectangular gasket block (1), an upper rectangular gasket block (2), a thin-wall shell (9), a plug (10) and a flat copper bar (7), the plug (10) is arranged on a sealing opening of the thin-wall shell (9), a first sealing ring embedded groove (11), a second sealing ring embedded groove (12) and a wedge ring embedded groove (13) are respectively arranged on the outer side surface of the plug (10), a flat copper bar inserting opening (14) is arranged on the side wall of the thin-wall shell outside the sealing opening of the thin-wall shell (9), the flat copper bar inserting opening (14) is communicated with the wedge ring embedded groove (13), a lower square strip groove (3) is arranged on the top surface of the lower rectangular gasket block (1), the upper square groove (4) is arranged on the lower bottom surface of the upper rectangular gasket block (2), the upper rectangular gasket block (2) is arranged on the upper top surface of the lower rectangular gasket block (1), a connecting bolt (6) connects the lower rectangular gasket (1) with the upper square groove (2) and the upper square groove (4) is arranged correspondingly to the lower rectangular groove (3), flat copper bars (7) are movably arranged in a long through hole groove formed by the lower square strip-shaped groove (3) and the upper square strip-shaped groove (4), positioning pin insertion through holes (5) are formed in the top surface of the upper rectangular pad block (2) at equal intervals along the direction of the upper square strip-shaped groove (4), the lower ends of the positioning pin insertion through holes (5) are communicated with the upper square strip-shaped groove (4), and positioning pins (8) are movably inserted in the positioning pin insertion through holes (5); the method is characterized by comprising the following steps of:
The method comprises the steps that firstly, a plug (10) is arranged on a plugging port of a thin-wall shell (9), a first sealing ring embedding groove (11), a second sealing ring embedding groove (12) and a wedge ring embedding groove (13) are respectively arranged on the outer side face of the plug (10), a flat copper bar inserting port (14) is arranged on the side wall of the thin-wall shell outside the plugging port of the thin-wall shell (9), and the flat copper bar inserting port (14) is communicated with the wedge ring embedding groove (13);
Secondly, arranging a lower square strip-shaped groove (3) on the top surface of the lower rectangular pad plate (1), arranging an upper square strip-shaped groove (4) on the lower bottom surface of the upper rectangular pad plate (2), arranging the upper rectangular pad plate (2) on the upper top surface of the lower rectangular pad plate (1), connecting the lower rectangular pad plate (1) with the upper rectangular pad plate (2) by a connecting bolt (6), wherein the lower square strip-shaped groove (3) is correspondingly arranged with the upper square strip-shaped groove (4), and arranging positioning pin inserting through holes (5) on the top surface of the upper rectangular pad plate (2) at equal intervals along the direction of the upper square strip-shaped groove (4);
Thirdly, inserting a locating pin (8) into a locating pin insertion through hole (5) at the rightmost end, inserting a flat copper bar (7) into a strip hole formed by a lower strip-shaped groove (3) and an upper strip-shaped groove (4), enabling the right end of the flat copper bar (7) to be abutted with the locating pin (8) inserted into the locating pin insertion through hole (5), inserting the left end of the flat copper bar (7) extending out of the left end of the lower rectangular pad block (1) into a flat copper bar insertion hole (14) on a thin-wall shell (9), knocking the right side surface of a cushion block formed by the lower rectangular pad block (1) and the upper rectangular pad block (2) by a hammer, and embedding the left end head of the flat copper bar (7) into a wedge ring insertion groove (13);
Fourthly, moving the cushion block to the right, enabling the flat copper bar (7) to extend outwards for a certain distance from the cushion block, pulling out the positioning pin (8) from the positioning pin insertion through hole (5) at the rightmost end, inserting the positioning pin (8) into the positioning pin insertion through hole at the left side of the positioning pin insertion through hole at the rightmost end, enabling the right end of the flat copper bar (7) to be abutted with the positioning pin (8) inserted into the positioning pin insertion through hole, knocking the right side surface of the cushion block formed by the lower rectangular cushion block (1) and the upper rectangular cushion block (2) by using a hammer, and continuously embedding the left end head of the flat copper bar (7) into the wedge ring embedding groove (13);
step five, repeating the step four, so that the flat copper bar (7) enters the wedge ring embedding groove (13) section by section until the left end head of the flat copper bar (7) is exposed from the flat copper bar inserting opening (14), and a wedge ring is formed between the plug (10) and the plugging port of the thin-wall shell (9);
And sixthly, after the hydrostatic test is finished, the flat copper bar (7) is pulled out from the wedge ring embedded groove (13), and the plug (10) can be conveniently removed from the plugging port of the thin-wall shell (9).
2. The wedge ring assembly method in the thin-wall shell sealing plug according to claim 1, wherein the right end of the flat copper bar (7) is abutted with the positioning pin (8) inserted into the positioning pin insertion through hole (5), the left end of the flat copper bar (7) extending to the outer side of the left end of the lower rectangular gasket block (1) is inserted into the flat copper bar insertion hole (14), a first sealing ring is arranged in the first sealing ring embedding groove (11), and a second sealing ring is arranged in the second sealing ring embedding groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576441.0A CN109357009B (en) | 2018-12-22 | 2018-12-22 | Wedge ring assembly fixture in thin-wall shell sealing plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576441.0A CN109357009B (en) | 2018-12-22 | 2018-12-22 | Wedge ring assembly fixture in thin-wall shell sealing plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109357009A CN109357009A (en) | 2019-02-19 |
| CN109357009B true CN109357009B (en) | 2024-05-28 |
Family
ID=65330000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811576441.0A Active CN109357009B (en) | 2018-12-22 | 2018-12-22 | Wedge ring assembly fixture in thin-wall shell sealing plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109357009B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909760A (en) * | 1998-05-13 | 1999-06-08 | Tsai; James | Stepless expandable rod |
| CN203109065U (en) * | 2013-03-15 | 2013-08-07 | 河南航天精工制造有限公司 | Movable plug assembling die |
| CN105996528A (en) * | 2016-07-27 | 2016-10-12 | 湖州高鼎智能科技有限公司 | Modularized intelligent seat |
| CN206044018U (en) * | 2016-07-27 | 2017-03-29 | 湖州高鼎智能科技有限公司 | A kind of modularization intelligent seat |
| CN207814741U (en) * | 2018-02-06 | 2018-09-04 | 福士汽车零部件（济南）有限公司 | A kind of experiment seal plug based on heat management system liquid cooling SV270 quick connectors |
| CN109630680A (en) * | 2018-12-22 | 2019-04-16 | 山西汾西重工有限责任公司 | Wedge ring assembly method in thin-wall case seal plug |
| CN209325032U (en) * | 2018-12-22 | 2019-08-30 | 山西汾西重工有限责任公司 | Wedge ring assembly tooling in thin-wall case seal plug |
-
2018
- 2018-12-22 CN CN201811576441.0A patent/CN109357009B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909760A (en) * | 1998-05-13 | 1999-06-08 | Tsai; James | Stepless expandable rod |
| CN203109065U (en) * | 2013-03-15 | 2013-08-07 | 河南航天精工制造有限公司 | Movable plug assembling die |
| CN105996528A (en) * | 2016-07-27 | 2016-10-12 | 湖州高鼎智能科技有限公司 | Modularized intelligent seat |
| CN206044018U (en) * | 2016-07-27 | 2017-03-29 | 湖州高鼎智能科技有限公司 | A kind of modularization intelligent seat |
| CN207814741U (en) * | 2018-02-06 | 2018-09-04 | 福士汽车零部件（济南）有限公司 | A kind of experiment seal plug based on heat management system liquid cooling SV270 quick connectors |
| CN109630680A (en) * | 2018-12-22 | 2019-04-16 | 山西汾西重工有限责任公司 | Wedge ring assembly method in thin-wall case seal plug |
| CN209325032U (en) * | 2018-12-22 | 2019-08-30 | 山西汾西重工有限责任公司 | Wedge ring assembly tooling in thin-wall case seal plug |
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| Publication number | Publication date |
|---|---|
| CN109357009A (en) | 2019-02-19 |
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