CN114619399B - Assembling device and method for lip-shaped oil seal in guide cylinder - Google Patents
Assembling device and method for lip-shaped oil seal in guide cylinder Download PDFInfo
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- CN114619399B CN114619399B CN202210183914.0A CN202210183914A CN114619399B CN 114619399 B CN114619399 B CN 114619399B CN 202210183914 A CN202210183914 A CN 202210183914A CN 114619399 B CN114619399 B CN 114619399B
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- oil seal
- mounting base
- shaped oil
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 claims description 33
- 239000004519 grease Substances 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Automatic Assembly (AREA)
Abstract
The invention provides an assembly device and method of a lip-shaped oil seal in a guide cylinder. The device comprises: the device comprises a transmission device (1), a cover plate (2), a stud (4), a mounting base (5), a transparent platform (6), a sensor (7), a computer (8) and a servo motor (9); the adopted mounting base well controls the problem of easy inclination in the lip-shaped oil seal assembly process, and ensures the mounting stability; the lip-shaped oil seal is uniformly stressed and integrally moves in the process of installing the lip-shaped oil seal, so that the lip-shaped oil seal can be stably and accurately installed in the guide cylinder; the device is simple to operate and convenient to use, not only can improve the assembly accuracy, but also can improve the efficiency, quality and efficiency. The problem that the lip-shaped oil seal cannot be stably assembled by interference due to the fact that the oil seal is inclined in assembly and uneven force application in assembly is solved.
Description
Technical Field
The invention belongs to the technical field of assembly of lip-shaped oil seals, and particularly relates to an assembly device and method of a lip-shaped oil seal in a guide cylinder.
Background
The lip-shaped oil seal is a dynamic precise rubber sealing element, is widely applied to the fields of aerospace, automobiles, ships and the like, and mainly utilizes the radial force formed by the clamping force generated by interference fit of a rubber lip and a rotating shaft and the tightening force of a spring to seal fluid to be sealed, isolate an oil cavity from the outside, seal oil in the oil cavity and prevent dust to the outside.
At present, when the lip-shaped oil seal is assembled in the guide cylinder, an assembly clamp is adopted, the oil seal is forced to be extruded in an inclined mode, the level of the oil seal is difficult to ensure, the pressure is evenly applied to the cavity, and therefore the matching part of the oil seal is extruded out and clamped, and final leakage is caused.
Disclosure of Invention
The invention provides an assembly device and method of a lip-shaped oil seal in a guide cylinder, which solve the problem that the matching part is crushed and blocked and leakage is possibly caused in the installation of the existing lip-shaped oil seal.
The first aspect of the present invention provides an assembly device for a lip-shaped oil seal in a guide cylinder, comprising: the device comprises a transmission device 1, a cover plate 2, a stud 4, a mounting base 5, a transparent platform 6, a sensor 7, a computer 8 and a servo motor 9; wherein,,
the mounting base 5 is barrel-shaped, the inner diameter and the outer diameter are consistent with the size of the lip-shaped oil seal, and the lip-shaped oil seal is arranged on the upper end surface of the mounting base 5; the stud 4 is vertically fixed at the bottom center of the mounting base 5, and the length of the stud 4 is greater than the radial height of the guide cylinder; the guide cylinder is sleeved outside the mounting base 5;
the cover plate 2 is in a ring shape, sleeved on the stud 4 and positioned on the upper end surface of the guide cylinder, and the diameter of the cover plate 2 is larger than that of the guide cylinder; a rubber protection pad is arranged on one surface of the cover plate 2 facing the guide cylinder;
the transmission device 1 comprises an external device and an internal device which are sleeved together, wherein the internal device is used for clamping the top of the stud 4, the lip-shaped oil seal is driven to move in the guide cylinder through the stud 4 and the mounting base 5, and the external device can move in a telescopic way and is used for pressing the guide cylinder on the transparent platform 6;
the computer 8 is respectively connected with the sensor 7 and the servo motor 9, and the servo motor 9 is used for providing power for the transmission device 1;
the computer 8 is used for adjusting the internal device when the inclination of the mounting base 5 is determined according to the acquired data of the sensor 7.
Optionally, the assembling device further includes: a pressing plate 3;
before the guide cylinder is sleeved outside the installation base 5, the pressing plate 3 can be sleeved on the stud 4 and used for pressing the lip-shaped oil seal to be tightly attached to the installation base 5.
Optionally, the pressing plate 3 is in an inverted barrel shape, a through hole is arranged at the barrel bottom and used for penetrating through the stud 4, and the inner diameter and the outer diameter of the pressing plate 3 are consistent with the size of the lip-shaped oil seal.
Optionally, the sensors 7 are disposed below the transparent platform, the number of the sensors 7 is at least 3, and the computer 8 is specifically configured to receive distances from the mounting base 5 collected by each sensor 7, calculate a range according to each distance value, and consider that the mounting base 5 is inclined if the range exceeds a set value of 0.05 mm.
Optionally, the depth of the cavity in the centre of the mounting base 5 is greater than the height of the lip seal.
A second aspect of the present invention provides a method of assembling a lip-shaped oil seal in a guide cylinder, using the assembling apparatus according to any one of the first aspect, the method comprising:
step 1: manually and tightly mounting the lip-shaped oil seal on the end face of the inner concave side of the mounting base 5 placed on the transparent platform 6;
step 2: the outer edge of the lip-shaped oil seal is coated with lubricating grease, and the guide cylinder is sleeved on the outer side of the mounting base 5 from the top of the stud 4 downwards; one side, which is provided with rubber protection, of the cover plate 2 is downward, a stud 4 penetrating through the center Kong Pingwen of the cover plate 2 is placed above the guide cylinder to cover the upper end surface of the guide cylinder, and the installation base 5 is horizontally placed on the transparent platform 6;
step 3: starting a servo motor 9, controlling an external device in the transmission device 1 to prop against the cover plate 2 to fix the guide cylinder on the transparent platform 6 through the computer 8, clamping the stud 4 by an internal device through telescopic change, enabling the external device and the internal device to move at the same frequency and in the same speed and different directions, ensuring the relative stillness of the guide cylinder and the platform, and enabling the internal device to pull the installation base 5 to rise; the sensor 7 scans the mounting base 5 and measures the distance from the bottom surface of the mounting base 5, and transmits the distance to the computer 8;
step 4: the computer 8 calculates the range by calculating the distance value transmitted by the sensor 7, if the distance value exceeds the set value of 0.05mm, the installation base 5 is considered to be inclined, the inclination position of the installation base 5 is adjusted by transmitting the inclination value to the transmission device 1 through the computer 8, after the installation base 5 is stable, the computer 8 calculates the range again, and if the distance value is less than 0.05mm, the transmission device 1 continues to pull the installation base upwards; when the distance identified by the sensor 7 reaches the set distance of 190mm, the lip-shaped oil seal is considered to be installed into the guide cylinder and is installed in place, and the transmission device 1 stops pulling the stud 4 upwards, and at this time the lip-shaped oil seal is installed.
Optionally, after step 4, the method further includes:
step 5: the computer 8 controls the internal device of the transmission device 1 to slowly apply force to the stud 4 downwards, and the external device synchronously contracts at the same time, so that the lip-shaped oil seal which is already assembled in the guide cylinder in an interference manner is separated from the mounting base 5, and the mounting base 5 is stably dropped onto the transparent platform 6 along the parallelism of the bottom surface of the set mounting base;
step 6: and taking down the guide cylinder with the lip-shaped oil seal, and taking out the mounting base.
Optionally, the assembling device further includes: a pressing plate 3; prior to step 2, the method further comprises:
and 11, sleeving the pressing plate 3 into the stud 4, forcibly pressing the pressing plate 3 along the periphery, tightly attaching the lip-shaped oil seal arranged on the mounting base 5 with the mounting base 5 without tilting, and removing the pressing plate 3.
The embodiment of the invention provides an assembly device and a method for a lip-shaped oil seal in a guide cylinder, wherein an adopted installation base well controls the problem of easy inclination in the assembly process of the lip-shaped oil seal, and ensures the installation stability; the lip-shaped oil seal is uniformly stressed and integrally moves in the process of installing the lip-shaped oil seal, so that the lip-shaped oil seal can be stably and accurately installed in the guide cylinder; the device is simple to operate and convenient to use, not only can improve the assembly accuracy, but also can improve the efficiency, quality and efficiency. The problem that the lip-shaped oil seal cannot be stably assembled by interference due to the fact that the oil seal is inclined in assembly and uneven force application in assembly is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic view of an assembly device of a lip-shaped oil seal in a guide cylinder according to the present invention;
FIG. 2 is a schematic diagram of the guide cylinder and lip oil seal assembly of the present invention;
reference numerals illustrate:
1-a transmission device; 2-cover plate; 3-pressing plates;
4-stud; 5-mounting a base; 6-a transparent platform;
7-a sensor; 8-a computer; 9-servo motor.
Detailed Description
The assembly device and the method of the lip-shaped oil seal in the guide cylinder provided by the invention are explained below with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides an assembly device for a lip-shaped oil seal in a guide cylinder, comprising: a fixed system, a control system and a transmission system; the fixing system includes: mounting base 5, double-screw bolt 4, clamp plate 3, apron 2 and transparent platform 6, control system includes: a sensor 7 and a computer 8; the transmission system comprises: a servomotor 9 and a transmission 1.
The installation base 5 is barrel-shaped with one end open, the diameter is customized along with the size of the lip-shaped oil seal, and the lip-shaped oil seal is placed on the end face of the installation base 5. The depth of the cavity in the center of the mounting base 5 is larger than the height of the lip-shaped oil seal;
the stud 4 is arranged at the center of the cavity of the mounting base 5, and the bottom of the stud 4 and the mounting base 5 are rigidly fixed and are perpendicular to the plane of the mounting base 5; the length of the stud 4 is greater than the radial height of the guide cylinder;
the pressing plate 3 is barrel-shaped with one end open, a through hole is formed in the barrel bottom, the diameter of the pressing plate 3 is consistent with the shape and the size of the lip-shaped oil seal, and the pressing plate 3 is inversely sleeved on the stud 4 and used for pressing the lip-shaped oil seal on the mounting base 5;
the cover plate 2 is in a disc shape, the center of the cover plate is provided with a center hole, the cover plate is sleeved on the stud 4, and the diameter of the cover plate 2 is larger than that of the guide cylinder.
Further, a rubber protection pad is arranged on one surface of the cover plate 2 facing the mounting base 5 so as to prevent the cover plate 2 from damaging the guide cylinder;
further, the servo motor 9 provides power to the transmission 1. The transmission device 1 comprises an external device and an internal device, wherein the internal device is a clamping end and is used for clamping the top of the stud 4, and the external device can move in a telescopic way. The internal device moves with the overall movement of the transmission 1. The external device is individually retractable.
Further, the number of the sensors 7 is at least 3, and the sensors are fixed on a plane, and the distance between the sensors and the bottom surface of the installation base 5 is collected through the transparent platform 6 and used for detecting the parallelism of the bottom surface of the installation base 5;
further, the computer 8 receives the data collected by the sensor 7, and generates a control command according to the data collected by the sensor 7, and transmits the control command to the transmission device 1, so as to control the installation base 5.
The invention also provides an assembly method of the lip-shaped oil seal in the guide cylinder, which is combined with the assembly device of the lip-shaped oil seal in the guide cylinder shown in fig. 1, and comprises the following steps:
step 1: manually and tightly mounting the lip-shaped oil seal on the end face of the inner concave side of the mounting base 5 placed on the transparent platform 6;
step 2: the pressing plate 3 is sleeved into the stud 4, the pressing plate 3 is pressed along the periphery forcibly, so that the lip-shaped oil seal arranged on the mounting base 5 is tightly attached to the mounting base 5 without tilting, and the pressing plate 3 is removed.
Step 3: the outer edge of the lip-shaped oil seal is coated with lubricating grease, and the guide cylinder is sleeved on the outer side of the mounting base 5 from the top of the stud 4 downwards; the side, which is provided with rubber protection, of the cover plate 2 is downward, the center Kong Pingwen, which passes through the stud 4, is placed above the guide cylinder and covers the top end of the guide cylinder, so that the guide cylinder is prevented from being damaged when the cover plate 2 is stressed, and the bottom surface of the installation base 5, on which the guide cylinder is already installed, is horizontally placed on the transparent platform 6.
Step 4: starting a servo motor 9, controlling an external device in the transmission device 1 through a computer 8 to firstly support the cover plate 2 to fix the guide cylinder on the transparent platform 6, clamping the stud 4 by an internal device through telescopic change, enabling the external device and the internal device to move in the same speed and different directions at the same frequency, ensuring the relative stillness of the guide cylinder and the platform by the external device, and pulling the installation base 5 by the internal device to rise. The sensor 7 scans the mounting base 5 and measures the distance from the bottom surface of the mounting base 5, and transmits the distance to the computer 8;
step 5: the computer 8 calculates its range=h by calculating the distance value transmitted by the sensor 7 max -H min If the set value exceeds 0.05mm, the installation base 5 is considered to incline, the inclined position of the installation base 5 is adjusted by transmitting the inclined position to the transmission device 1 through the computer 8, after the installation base 5 is stable, the computer 8 calculates the extremely bad again, and if the value is less than 0.05mm, the transmission device 1 continues to pull the installation base upwards. When the distance identified by the sensor 7 reaches the set distance of 190mm, the lip-shaped oil seal is considered to be installed into the guide cylinder and is installed in place, and the transmission device 1 stops pulling the stud 4 upwards, and at this time the lip-shaped oil seal is installed.
Step 6: the computer 8 controls the internal device of the transmission device 1 to slowly apply force to the stud 4 downwards, and the external device synchronously contracts at the same time, so that the lip-shaped oil seal which is already assembled in the guide cylinder in an interference manner is separated from the mounting base 5, and the mounting base 5 is stably dropped onto the transparent platform 6 along the parallelism of the bottom surface of the set mounting base;
step 7: and taking down the guide cylinder with the lip-shaped oil seal, and taking out the mounting base.
The device and the method are applicable to all structures needing to install the lip-like oil seal in the guide cylinder.
Furthermore, in the step 3, the lubricating grease is uniformly coated on the outer surface of the lip-shaped oil seal, so that the lubrication with the inner wall of the guide cylinder in the assembly process of the lip-shaped oil seal is ensured;
further, in the step 3, the transparent platform is a horizontal platform completely parallel to the plane where the sensor is located, so that the parallelism of the mounting base and the perpendicularity of the stud are ensured;
further, in the step 3, when the guide cylinder is in contact with the lip-shaped oil seal arranged on the installation base, the guide cylinder is arranged right opposite to the installation base, so that the lip-shaped oil seal is ensured to have no play;
further, in step 5, the moving speed of the external device and the moving speed of the internal device are the same, so that the guide cylinder and the platform are tightly attached and are relatively static;
further, in step 5, the distance between the plane where the sensor is located and the plane of the transparent platform is adjusted to be parallel;
in step 5, the transmission system adjusts the force to adjust the mounting base within the set value slowly and then pulls the mounting base upwards.
Claims (7)
1. An assembly device for a lip-shaped oil seal in a guide cylinder, comprising: the device comprises a transmission device (1), a cover plate (2), a stud (4), a mounting base (5), a transparent platform (6), a sensor (7), a computer (8) and a servo motor (9); wherein,,
the mounting base (5) is barrel-shaped, the inner diameter and the outer diameter are consistent with the size of the lip-shaped oil seal, and the lip-shaped oil seal is arranged on the upper end surface of the mounting base (5); the stud (4) is vertically fixed at the bottom center of the mounting base (5), and the length of the stud (4) is larger than the radial height of the guide cylinder; the guide cylinder is sleeved outside the mounting base (5);
the cover plate (2) is in a ring shape, sleeved on the stud (4) and positioned on the upper end surface of the guide cylinder, and the diameter of the cover plate (2) is larger than that of the guide cylinder; one surface of the cover plate (2) facing the guide cylinder is provided with a rubber protection pad;
the transmission device (1) comprises an external device and an internal device which are sleeved together, the internal device is used for clamping the top of the stud (4), the lip-shaped oil seal is driven to move in the guide cylinder through the stud (4) and the mounting base (5), and the external device can move in a telescopic manner and is used for pressing the guide cylinder on the transparent platform (6);
the computer (8) is respectively connected with the sensor (7) and the servo motor (9), and the servo motor (9) is used for providing power for the transmission device (1);
the computer (8) is used for adjusting the internal device when the inclination of the installation base (5) is determined according to the acquired data of the sensor (7);
the sensors (7) are arranged below the transparent platform, the number of the sensors (7) is at least 3, the computer (8) is specifically used for receiving the distances between the sensors (7) and the installation base (5), calculating the range according to the distance values, and considering the installation base (5) to incline if the range exceeds a set value of 0.05 mm.
2. The fitting assembly according to claim 1, further comprising: a pressing plate (3);
before the guide cylinder is sleeved outside the installation base (5), the pressing plate (3) can be sleeved on the stud (4) and used for pressing the lip-shaped oil seal to be tightly attached to the installation base (5).
3. Assembly device according to claim 2, characterized in that the pressure plate (3) is in the shape of an inverted barrel, the barrel bottom is provided with a through hole for passing the stud (4), and the inner and outer diameter dimensions of the pressure plate (3) are consistent with the dimensions of the lip-shaped oil seal.
4. Assembly device according to claim 1, characterized in that the depth of the cavity in the centre of the mounting base (5) is greater than the height of the lip seal.
5. A method of assembling a lip seal in a guide cylinder, using the assembling apparatus according to any one of claims 1 to 4, the method comprising:
step 1: manually and tightly mounting the lip-shaped oil seal on the end face of the inner concave side of a mounting base (5) arranged on a transparent platform (6);
step 2: the outer edge of the lip-shaped oil seal is coated with lubricating grease, and the guide cylinder is sleeved on the outer side of the mounting base (5) downwards from the top of the stud (4); one side, which is provided with rubber protection, of the cover plate (2) is downward, a stud (4) penetrating through the center Kong Pingwen of the cover plate (2) is placed above the guide cylinder to cover the upper end surface of the guide cylinder, and the mounting base (5) is horizontally placed on the transparent platform (6);
step 3: starting a servo motor (9), controlling an external device in a transmission device (1) through a computer (8) to support a cover plate (2) to fix a guide cylinder on a transparent platform (6), clamping a stud (4) by an internal device through telescopic change, enabling the external device and the internal device to move in the same frequency, same speed and different directions, ensuring the relative rest of the guide cylinder and the platform, and enabling the internal device to pull a mounting base (5) to rise; the sensor (7) scans the mounting base (5) and measures the distance between the sensor and the bottom surface of the mounting base (5), and transmits the distance to the computer (8);
step 4: the computer (8) calculates the range by calculating the distance value transmitted by the sensor (7), if the distance value exceeds the set value by 0.05mm, the installation base (5) is considered to be inclined, the inclination position of the installation base (5) is adjusted by transmitting the inclination value to the transmission device (1) through the computer (8), after the installation base (5) is stable, the computer (8) calculates the range again, and if the distance value is less than 0.05mm, the transmission device (1) continues to pull the installation base upwards; when the distance identified by the sensor (7) reaches 190mm from the set distance, the lip-shaped oil seal is considered to be installed in the guide cylinder and is installed in place, the transmission device (1) stops pulling the stud (4) upwards, and at the moment, the lip-shaped oil seal is installed completely.
6. The method of claim 5, wherein after step 4, the method further comprises:
step 5: the computer (8) controls the internal device of the transmission device (1) to slowly apply force to the stud (4) downwards, and the external device synchronously contracts at the same time, so that the lip-shaped oil seal which is already assembled in the guide cylinder in an interference manner is separated from the mounting base (5), and the mounting base (5) is stably fallen onto the transparent platform (6) along the parallelism of the bottom surface of the set mounting base;
step 6: and taking down the guide cylinder with the lip-shaped oil seal, and taking out the mounting base.
7. The method of claim 5, wherein the assembly device further comprises: a pressing plate (3); prior to step 2, the method further comprises:
and 11, sleeving the pressing plate (3) into the stud (4), forcibly pressing the pressing plate (3) along the periphery, tightly attaching the lip-shaped oil seal arranged on the mounting base (5) to the mounting base (5) without tilting, and removing the pressing plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210183914.0A CN114619399B (en) | 2022-02-25 | 2022-02-25 | Assembling device and method for lip-shaped oil seal in guide cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210183914.0A CN114619399B (en) | 2022-02-25 | 2022-02-25 | Assembling device and method for lip-shaped oil seal in guide cylinder |
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| Publication Number | Publication Date |
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| CN114619399A CN114619399A (en) | 2022-06-14 |
| CN114619399B true CN114619399B (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210183914.0A Active CN114619399B (en) | 2022-02-25 | 2022-02-25 | Assembling device and method for lip-shaped oil seal in guide cylinder |
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| CN (1) | CN114619399B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002195389A (en) * | 2000-12-27 | 2002-07-10 | Hitachi Constr Mach Co Ltd | Speed reducer |
| CN102407512A (en) * | 2010-09-20 | 2012-04-11 | 上海航盛实业有限公司 | Installation tool for automobile tire pressure sensor assembly |
| CN104552138A (en) * | 2013-10-29 | 2015-04-29 | 陕西重型汽车有限公司 | Vehicle fuel pipe assembly tool |
| CN110722502A (en) * | 2019-11-27 | 2020-01-24 | 中国航发沈阳黎明航空发动机有限责任公司 | Assembly jig for installing radial lip-shaped sealing ring without impact |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6490905B1 (en) * | 2000-11-06 | 2002-12-10 | Alliance Automation Systems | Spin pull module for threaded inserts |
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2022
- 2022-02-25 CN CN202210183914.0A patent/CN114619399B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002195389A (en) * | 2000-12-27 | 2002-07-10 | Hitachi Constr Mach Co Ltd | Speed reducer |
| CN102407512A (en) * | 2010-09-20 | 2012-04-11 | 上海航盛实业有限公司 | Installation tool for automobile tire pressure sensor assembly |
| CN104552138A (en) * | 2013-10-29 | 2015-04-29 | 陕西重型汽车有限公司 | Vehicle fuel pipe assembly tool |
| CN110722502A (en) * | 2019-11-27 | 2020-01-24 | 中国航发沈阳黎明航空发动机有限责任公司 | Assembly jig for installing radial lip-shaped sealing ring without impact |
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| CN114619399A (en) | 2022-06-14 |
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