JP2003065882A - Pressure leak inspection method and inspection device of oil seal - Google Patents
Pressure leak inspection method and inspection device of oil sealInfo
- Publication number
- JP2003065882A JP2003065882A JP2001255136A JP2001255136A JP2003065882A JP 2003065882 A JP2003065882 A JP 2003065882A JP 2001255136 A JP2001255136 A JP 2001255136A JP 2001255136 A JP2001255136 A JP 2001255136A JP 2003065882 A JP2003065882 A JP 2003065882A
- Authority
- JP
- Japan
- Prior art keywords
- oil seal
- pressure
- press
- shaft
- pressurized air
- 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.)
- Granted
Links
- 238000007689 inspection Methods 0.000 title claims description 26
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 210000000088 Lip Anatomy 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003068 static Effects 0.000 description 1
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、ミッションケース
等に組み込まれるオイルシールの圧洩れを検査する技術
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for inspecting a pressure leak of an oil seal incorporated in a mission case or the like.
【0002】[0002]
【従来の技術】従来、例えば自動二輪車用の変速機にお
いて、ミッションケースに組み込まれるオイルシールの
圧洩れ検査は、図3に示すように、上下のケースC1、
C2が結合されるミッションケースCとシャフトSをア
センブリー状態で組付けた後、ケース内空間部Hに加圧
エアを供給し、オイルシ−ルrを通して洩れるエアの流
れを検査することにより、オイルシールrの組付け状態
の不良等を検査するようにしている。Conventionally, for example, in a transmission for a motorcycle,圧洩Re inspection of the oil seal incorporated in the transmission case, as shown in FIG. 3, the upper and lower casing C 1,
After assembling the transmission case C to which C 2 is coupled and the shaft S in an assembled state, pressurized air is supplied to the space H in the case, and the flow of air leaking through the oil seal r is inspected. The seal r is inspected for defective installation.
【0003】[0003]
【発明が解決しようとする課題】ところが、従来の検査
方法では、例えばオイルシールrのリップ部にめくれ
(切れ)等があるような場合、組み付け直後の段階では
エア漏れを完全に発見出来ないことがある等の問題があ
った。そして検査で不具合が発見されると、分解作業し
て修復する等の必要があり、作業ロスが発生していた。However, according to the conventional inspection method, if the lip portion of the oil seal r is curled (broken) or the like, air leakage cannot be completely detected immediately after the assembly. There was such a problem. Then, if a defect is found in the inspection, it is necessary to disassemble and repair it, resulting in work loss.
【0004】そこで本発明は、例えば組付ける際にオイ
ルシールのリップ部のめくれ(切れ)等が生じたような
場合でも、組付け段階で確実に検知出来るようにするこ
とを目的とする。Therefore, an object of the present invention is to make it possible to reliably detect even when the lip portion of the oil seal is turned (broken) or the like during assembly, at the assembly stage.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するため
本発明は、ケースと、このケース内に組み込まれるシャ
フトとの間に圧入されるオイルシールの圧洩れを検査す
る方法において、オイルシールを圧入した後、シャフト
を回転させながらオイルシールの一方側の方向から加圧
エアを供給し、オイルシールの反対側の方向の圧力変化
を検出して圧漏れを検査するようにした。To achieve the above object, the present invention provides a method for inspecting a pressure leak of an oil seal press-fitted between a case and a shaft incorporated in the case. After press-fitting, pressurized air was supplied from one side of the oil seal while rotating the shaft, and a pressure change in the opposite side of the oil seal was detected to inspect the pressure leak.
【0006】このようにオイルシールを圧入した後、シ
ャフトを回転させながら加圧エアを供給して圧漏れを検
査すれば、オイルシールのリップ部にめくれ(切れ)等
があるような場合でも確実に検知出来るようになり、検
査精度が向上する。そして、オイルシールの圧入時に不
具合を発見出来るため、検査で不具合が発見されても分
解作業を行うような作業ロスを削減出来る。After press-fitting the oil seal in this way, by supplying pressurized air while rotating the shaft and inspecting for pressure leakage, even if the lip portion of the oil seal is curled (cut), it can be surely performed. Can be detected and the inspection accuracy is improved. Further, since a defect can be found when the oil seal is press-fitted, it is possible to reduce work loss such as disassembling work even if a defect is found by inspection.
【0007】また本発明では、ケースと、このケース内
に組み込まれるシャフトとの間に圧入されるオイルシー
ルの圧洩れを検査する装置において、オイルシールを圧
入するための圧入ヘッドと、シャフトを回転させるため
の回転手段と、オイルシールの一方側の方向から加圧エ
アを供給するための加圧エア供給手段と、オイルシール
の反対側の方向の圧力変化を検知する圧力変化検知手段
を設けた。Further, according to the present invention, in a device for inspecting a pressure leak of an oil seal press-fitted between a case and a shaft incorporated in the case, a press-fitting head for press-fitting the oil seal and a shaft are rotated. A rotating means for rotating the oil seal, a pressurized air supply means for supplying pressurized air from one side of the oil seal, and a pressure change detecting means for detecting a pressure change in the opposite side of the oil seal are provided. .
【0008】そして、圧入ヘッドによりオイルシールを
圧入した後、回転手段によりシャフトを回転させ、加圧
エア供給手段によりオイルシールの一方側の方向から加
圧エアを供給し、圧力変化検知によりオイルシールの反
対側の方向の圧力変化を検知することにより、圧洩れを
検査するようにすれば好適である。Then, after the oil seal is press-fitted by the press-fitting head, the shaft is rotated by the rotating means, the pressurized air is supplied from the one side of the oil seal by the pressurized air supply means, and the oil seal is detected by the pressure change detection. It is preferable to detect the pressure leak by detecting the pressure change in the direction opposite to the above.
【0009】また本発明では、前記圧力変化検知手段の
検知部を、圧入ヘッドに設けるようにした。このよう
に、圧力変化検知手段の検知部を圧入ヘッドに設けれ
ば、装置構成をコンパクト化することが出来る。Further, in the present invention, the detecting portion of the pressure change detecting means is provided in the press-fitting head. In this way, if the detection unit of the pressure change detection unit is provided in the press-fitting head, the device configuration can be made compact.
【0010】[0010]
【発明の実施の形態】本発明の実施の形態について添付
した図面に基づき説明する。ここで図1は本発明に係る
圧洩れ検査装置と検査方法の説明図、図2は圧洩れ検査
装置の他の構成例図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the accompanying drawings. Here, FIG. 1 is an explanatory view of a pressure leakage inspection apparatus and an inspection method according to the present invention, and FIG. 2 is another structural example diagram of the pressure leakage inspection apparatus.
【0011】本発明に係るオイルシールの圧洩れ検査方
法及び装置は、例えば図1に示すような車両用のミッシ
ョンケースCにオイルシールrを組み込む際、従来のよ
うに上下のケースを結合しなくても検査出来るようにさ
れるとともに、従来のような静的検査の代わりにシャフ
トを回転させながら動的に検査できるようにされてお
り、組付け段階でオイルシールのリップ部のめくれ(切
れ)等の異常を検出し得るようにされている。このた
め、検査で異常が発見されても、分解作業するような作
業ロスの発生を防止出来るようにされている。In the method and apparatus for inspecting oil seal pressure leakage according to the present invention, for example, when the oil seal r is incorporated in the vehicle transmission case C as shown in FIG. 1, the upper and lower cases are not coupled as in the conventional case. Even if it is possible to inspect it, it is possible to inspect dynamically while rotating the shaft instead of the conventional static inspection, and the lip part of the oil seal is turned up (cut) at the assembly stage. It is designed to be able to detect such abnormalities. Therefore, even if an abnormality is found in the inspection, it is possible to prevent the occurrence of work loss such as disassembly work.
【0012】すなわち、上部側のケースCには、ベアリ
ングbを介してシャフトSが回転自在に組み込まれるよ
うになっており、オイルシールrはケースCとシャフト
Sの間に介装されるようになっている。そして本発明に
係る圧洩れ検査装置1は、図1に示すように、オイルシ
ールrを圧入するための圧入ヘッド2と、シャフトSを
回転させるための回転手段3と、オイルシールrの一方
側の方向から加圧エアを供給するための加圧エア供給手
段4と、オイルシールrの反対側の圧力変化を検出する
ための圧力変化検知手段5を備えている。That is, the shaft S is rotatably incorporated into the upper case C via the bearing b, and the oil seal r is interposed between the case C and the shaft S. Has become. The pressure leak inspection apparatus 1 according to the present invention is, as shown in FIG. 1, a press-fitting head 2 for press-fitting an oil seal r, a rotating means 3 for rotating a shaft S, and one side of the oil seal r. It is provided with a pressurized air supply means 4 for supplying pressurized air from the direction and a pressure change detection means 5 for detecting a pressure change on the opposite side of the oil seal r.
【0013】前記圧入ヘッド2は、上ベース18によっ
て昇降自在にされるとともに筒状の形状にされ、この圧
入ヘッド2の筒内が、後述するように圧力変化検知手段
5の検知部7とされている。The press-fitting head 2 is vertically movable by an upper base 18 and has a tubular shape. The inside of the press-fitting head 2 serves as a detecting portion 7 of a pressure change detecting means 5 as described later. ing.
【0014】前記回転手段3は、エアモータ8の回転軸
に取り付けられる第1ギヤ9と、この第1ギヤ9に噛合
する第2ギヤ10と、この第2ギヤ10と一体的に回転
可能な第3ギヤ11を備えており、この第3ギヤ11を
シャフトSのギヤ部gに噛合させた後、エアモータ8を
回転駆動することにより、シャフトSを回転させること
が出来るようにされている。The rotating means 3 has a first gear 9 attached to the rotating shaft of the air motor 8, a second gear 10 meshing with the first gear 9, and a second gear 10 rotatable integrally with the second gear 10. The third gear 11 is provided, and the shaft S can be rotated by rotating the air motor 8 after the third gear 11 is meshed with the gear portion g of the shaft S.
【0015】前記加圧エア供給手段4は、不図示の加圧
エア供給源と、ベアリングbの下面に当接可能なエア供
給部13を備えており、ベアリングbを通してオイルシ
ールrの下面に向けて加圧エアを吹き付けることが出来
るようにされている。The pressurized air supply means 4 is provided with a pressurized air supply source (not shown) and an air supply portion 13 which can come into contact with the lower surface of the bearing b, and is directed to the lower surface of the oil seal r through the bearing b. It is possible to blow pressurized air.
【0016】前記圧力変化検知手段5は、前記圧入ヘッ
ド2の検知部7内に連通する内圧測定用路14と、外気
に開放する外気圧測定用路15と、内圧と外気圧の圧力
差を検知する差圧検出用センサ16と、判定用の出力ア
ンプ17を備えており、検知部7内の圧力と外気圧との
差が一定以上になると、出力アンプ17により知らせる
ようにしている。The pressure change detecting means 5 detects the internal pressure measuring path 14 communicating with the detecting portion 7 of the press-fitting head 2, the external pressure measuring path 15 opening to the outside air, and the pressure difference between the internal pressure and the external atmospheric pressure. A differential pressure detection sensor 16 for detection and an output amplifier 17 for determination are provided, and the output amplifier 17 notifies when the difference between the pressure in the detection unit 7 and the external atmospheric pressure becomes a certain value or more.
【0017】以上のような圧洩れ検査装置1の作用等に
ついて説明する。まず、図1(a)に示すように、ベア
リングb付きシャフトSを下ベース19上の所定位置に
セットした後、上部側のケースCを所定の位置にセット
し、更にその上方の圧入ヘッド2にオイルシールrをセ
ットし、圧入が開始される。そして圧入ヘッド2が下降
してシャフトSがケースC内に組み付けられるととも
に、オイルシールrがケースCとシャフトSの間に圧入
されると、圧入下降端でエアモータ8が作動し、第1ギ
ヤ9、第2ギヤ10、第3ギヤ11、シャフトSのギヤ
部gを介してシャフトSが回転させられ、図1(b)に
示すように、不図示の加圧エア供給源から加圧エア供給
手段4により加圧エアの供給が開始される。The operation and the like of the pressure leak inspection device 1 as described above will be described. First, as shown in FIG. 1A, after the shaft S with the bearing b is set at a predetermined position on the lower base 19, the case C on the upper side is set at a predetermined position, and the press-fitting head 2 above it is set. The oil seal r is set to and press-fitting is started. Then, when the press-fitting head 2 descends and the shaft S is assembled in the case C, and the oil seal r is press-fitted between the case C and the shaft S, the air motor 8 operates at the press-fitting lower end and the first gear 9 The shaft S is rotated via the second gear 10, the third gear 11, and the gear part g of the shaft S, and as shown in FIG. 1B, pressurized air is supplied from a pressurized air supply source (not shown). The supply of pressurized air is started by the means 4.
【0018】そして、オイルシールrにリップ部のめく
れ(切れ)等のシール不良箇所がある場合には、シール
不良箇所から加圧エアが流通し、圧入ヘッド2の検知部
7内の圧力が高まり、差圧検出用センサ16によってそ
れが検知される。この際、ミッションケースとして上下
のケースを結合しなくても検査することが出来、またリ
ップ部のめくれ(切れ)等がある場合でも、シャフトS
が回転しているため検出精度が高まり、不具合の早期発
見が可能である。また、圧力変化検知手段5の検知部7
が、圧入ヘッド2に設けられているため、装置1のコン
パクト化が図られる。When the oil seal r has a defective seal portion such as a lip turning (cut), pressurized air flows from the defective seal portion and the pressure in the detecting portion 7 of the press-fitting head 2 increases. This is detected by the differential pressure detection sensor 16. At this time, it is possible to inspect without connecting the upper and lower cases as the mission case, and even if the lip part is curled (cut), the shaft S
Since the rotation of the, increases the detection accuracy, it is possible to detect defects early. Further, the detection unit 7 of the pressure change detection means 5
However, since the press-fitting head 2 is provided, the device 1 can be made compact.
【0019】次に、本発明の圧洩れ検査装置の他の構成
例について、図2に基づき説明する。尚、図2でも、前
記例と同様の部品や機構部等には同じ番号を付してい
る。Next, another example of the structure of the pressure leakage inspection apparatus of the present invention will be described with reference to FIG. In FIG. 2 as well, parts and mechanism parts similar to those in the above-mentioned example are denoted by the same reference numerals.
【0020】この構成例では、例えば既存のハンド圧入
治具等に適用すれば便利なものであり、圧入ヘッド2の
筒内空間部内にシャフトSのクランプ機構20を設け、
このクランプ機構20を回転手段3によって回転自在に
するとともに、その上部に圧入装置21を設けるように
しており、また、圧入ヘッド2の筒内空間部を検知部7
とし、この検知部7に、圧力変化検知手段5の内圧測定
用路14を連通せしめている。また、回転手段3と圧入
ヘッド2との間には、ホールド用スプリング24を配設
している。In this configuration example, it is convenient if applied to, for example, an existing hand press-fitting jig, and the clamp mechanism 20 for the shaft S is provided in the in-cylinder space of the press-fitting head 2.
The clamp mechanism 20 is made rotatable by the rotating means 3, and the press-fitting device 21 is provided on the upper part thereof, and the in-cylinder space of the press-fitting head 2 is detected by the detecting portion 7.
The internal pressure measuring path 14 of the pressure change detecting means 5 is connected to the detecting section 7. A holding spring 24 is arranged between the rotating means 3 and the press-fitting head 2.
【0021】そして、クランプ機構20としては、例え
ば開閉自在なクランプアーム22と、クランプセンサ2
3から構成し、クランプセンサ23がシャフトSの先端
部に当接すると、クランプアーム22が閉じてシャフト
Sの頭部を把持して回転手段3によってシャフトSを回
転させるようにしている。尚、加圧エア供給手段4(不
図示)については、図1に示す構成例と同様の構成を採
用することが出来る。As the clamp mechanism 20, for example, a clamp arm 22 that can be opened and closed and a clamp sensor 2 are used.
When the clamp sensor 23 comes into contact with the tip of the shaft S, the clamp arm 22 is closed to grip the head of the shaft S and rotate the shaft S by the rotating means 3. The pressurized air supply means 4 (not shown) may have the same configuration as the configuration example shown in FIG.
【0022】そしてこのような装置構成の場合でも、圧
入ヘッド2によりオイルシールrの圧入が完了した状態
でクランプセンサ23がシャフトSの先端に当接する
と、クランプアーム22がシャフトSの頭部を把持して
回転手段3が作動し、シャフトSを回転させながら、不
図示の加圧エア供給手段4によりオイルシールrの下方
から加圧エアを供給し、圧力変化検知手段5の差圧検出
用センサ16により検知部7と外気圧を比較すれば、シ
ール不良等を確実に且つ早期に発見出来る。Even in the case of such an apparatus structure, when the clamp sensor 23 comes into contact with the tip of the shaft S in a state where the press fit of the oil seal r is completed by the press fit head 2, the clamp arm 22 moves the head of the shaft S. While gripping and operating the rotating means 3 and rotating the shaft S, pressurized air is supplied from below the oil seal r by the pressurized air supply means 4 (not shown) to detect the differential pressure of the pressure change detection means 5. By comparing the detection unit 7 and the outside air pressure with the sensor 16, it is possible to reliably and early detect a defective seal or the like.
【0023】尚、本発明は以上のような実施形態に限定
されるものではない。本発明の特許請求の範囲に記載し
た事項と実質的に同一の構成を有し、同一の作用効果を
奏するものは本発明の技術的範囲に属する。例えば圧力
変化検知手段5の具体的構成等は任意であり、またワー
クはミッションケースに限られるものではない。The present invention is not limited to the above embodiment. Those having substantially the same configurations as those described in the claims of the present invention and exhibiting the same operational effects belong to the technical scope of the present invention. For example, the specific configuration of the pressure change detection means 5 is arbitrary, and the work is not limited to the mission case.
【0024】[0024]
【発明の効果】以上のように本発明に係るオイルシール
の圧洩れ検査方法及び装置は、圧入ヘッドによりオイル
シールを圧入した後、回転手段によりシャフトを回転さ
せながら、加圧エア供給手段によりオイルシールの一方
側から加圧エアを供給し、他方側の圧力変化を圧力変化
検知手段により検知して圧漏れを検査するようにしたた
め、例えばオイルシールのリップ部にめくれ(切れ)等
があるような場合でも確実に検知出来るようになり、検
査精度が向上するとともに、オイルシールの不具合を早
期に発見出来るようになって、検査後に分解作業を行う
ような作業ロスを削減出来る。そして、圧力変化検知手
段の検知部を、圧入ヘッドに設ければ、装置構成をコン
パクト化することが出来る。As described above, in the method and apparatus for inspecting oil seal pressure leakage according to the present invention, after the oil seal is press-fitted by the press-fitting head, the shaft is rotated by the rotating means while the oil is supplied by the pressurized air supply means. Pressurized air is supplied from one side of the seal, and the pressure change on the other side is detected by the pressure change detection means to inspect for pressure leaks. For example, the lip of the oil seal may be curled (cut). In such a case, the detection can be performed reliably, the inspection accuracy is improved, and the defect of the oil seal can be detected at an early stage, and the work loss of disassembling work after the inspection can be reduced. Further, if the detecting portion of the pressure change detecting means is provided in the press-fitting head, the device structure can be made compact.
【図1】本発明に係る圧洩れ検査装置と検査方法の説明
図FIG. 1 is an explanatory view of a pressure leak inspection device and an inspection method according to the present invention.
【図2】圧洩れ検査装置の他の構成例図FIG. 2 is a diagram showing another configuration example of the pressure leak inspection device.
【図3】圧洩れ検査装置の従来図FIG. 3 Conventional view of pressure leak inspection device
1…圧洩れ検査装置、2…圧入ヘッド、3…回転手段、
4…加圧エア供給手段、5…圧力変化検知手段、7…検
知部、C…ミッションケース、S…シャフト、r…オイ
ルシール。1 ... Pressure leak inspection device, 2 ... Press-fit head, 3 ... Rotating means,
4 ... Pressurized air supply means, 5 ... Pressure change detection means, 7 ... Detection part, C ... Mission case, S ... Shaft, r ... Oil seal.
Claims (3)
シャフトとの間に圧入されるオイルシールの圧洩れを検
査する方法であって、前記オイルシールを圧入した後、
前記シャフトを回転させながらオイルシールの一方側の
方向から加圧エアを供給し、オイルシールの反対側の方
向の圧力変化を検出して圧漏れを検査するようにしたこ
とを特徴とするオイルシールの圧漏れ検査方法。1. A method for inspecting a pressure leak of an oil seal press-fitted between a case and a shaft incorporated in the case, the method comprising:
The oil seal is characterized in that pressurized air is supplied from one side of the oil seal while rotating the shaft, and a pressure change is detected by detecting a pressure change in the opposite side of the oil seal. Pressure leak inspection method.
シャフトとの間に圧入されるオイルシールの圧洩れを検
査する装置であって、前記オイルシールを圧入するため
の圧入ヘッドと、前記シャフトを回転させるための回転
手段と、オイルシールの一方側の方向から加圧エアを供
給するための加圧エア供給手段と、オイルシールの反対
側の方向の圧力変化を検知する圧力変化検知手段を備え
たことを特徴とするオイルシールの圧洩れ検査装置。2. An apparatus for inspecting a pressure leak of an oil seal press-fitted between a case and a shaft incorporated in the case, the press-fitting head for press-fitting the oil seal, and the shaft. The rotating means for rotating, the pressurized air supply means for supplying pressurized air from one side of the oil seal, and the pressure change detecting means for detecting the pressure change in the opposite side of the oil seal. A pressure leak inspection device for oil seals.
検査装置において、前記圧力変化検知手段の検知部は、
前記圧入ヘッドに設けられることを特徴とするオイルシ
ールの圧漏れ検査装置。3. The pressure leak inspection device for an oil seal according to claim 2, wherein the detection portion of the pressure change detection means comprises:
A pressure leakage inspection device for an oil seal, which is provided in the press-fitting head.
Priority Applications (1)
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JP2001255136A JP4401045B2 (en) | 2001-08-24 | 2001-08-24 | Oil seal pressure leak inspection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001255136A JP4401045B2 (en) | 2001-08-24 | 2001-08-24 | Oil seal pressure leak inspection device |
Publications (2)
Publication Number | Publication Date |
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JP2003065882A true JP2003065882A (en) | 2003-03-05 |
JP4401045B2 JP4401045B2 (en) | 2010-01-20 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104236805A (en) * | 2014-09-26 | 2014-12-24 | 宁波旭升机械有限公司 | Tightness detection tool |
CN104655414A (en) * | 2015-02-02 | 2015-05-27 | 奇瑞汽车股份有限公司 | Crankshaft front oil seal test tooling |
CN105136407A (en) * | 2015-08-27 | 2015-12-09 | 浙江联宜电机有限公司 | Worm gear box tightness test device |
CN106918427A (en) * | 2017-04-28 | 2017-07-04 | 嘉兴学院 | A kind of experimental provision of real-time measurement oil sealing slip |
CN108168799A (en) * | 2018-01-29 | 2018-06-15 | 安徽江淮汽车集团股份有限公司 | Wet dual clutch transmission assembly performing leak test system and test method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103323179B (en) * | 2012-03-19 | 2017-03-22 | 江苏明珠试验机械有限公司 | Computer-control single-head oil seal rotating performance testing machine |
-
2001
- 2001-08-24 JP JP2001255136A patent/JP4401045B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104236805A (en) * | 2014-09-26 | 2014-12-24 | 宁波旭升机械有限公司 | Tightness detection tool |
CN104655414A (en) * | 2015-02-02 | 2015-05-27 | 奇瑞汽车股份有限公司 | Crankshaft front oil seal test tooling |
CN105136407A (en) * | 2015-08-27 | 2015-12-09 | 浙江联宜电机有限公司 | Worm gear box tightness test device |
CN106918427A (en) * | 2017-04-28 | 2017-07-04 | 嘉兴学院 | A kind of experimental provision of real-time measurement oil sealing slip |
CN108168799A (en) * | 2018-01-29 | 2018-06-15 | 安徽江淮汽车集团股份有限公司 | Wet dual clutch transmission assembly performing leak test system and test method |
Also Published As
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JP4401045B2 (en) | 2010-01-20 |
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