CN105910768A - T-shaped shaft of hub leak tester - Google Patents
T-shaped shaft of hub leak tester Download PDFInfo
- Publication number
- CN105910768A CN105910768A CN201610326432.0A CN201610326432A CN105910768A CN 105910768 A CN105910768 A CN 105910768A CN 201610326432 A CN201610326432 A CN 201610326432A CN 105910768 A CN105910768 A CN 105910768A
- Authority
- CN
- China
- Prior art keywords
- connecting portion
- groove
- length
- leak tester
- keyway
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
Abstract
The invention discloses a T-shaped shaft of a hub leak tester. The T-shaped shaft comprises a fixed end and a connecting end, wherein the connecting end comprises a first connecting part, a second connecting part, a third connecting part and a fourth connecting part which are coaxially arranged and connected in sequence; an enclosed key slot which is used for connecting a rotary motor is formed in the fourth connecting part along the central axis direction thereof, and the length of the enclosed key slot accounts for 1/2 to 3/4 of that of the fourth connecting part; a first groove used for connecting an output shaft of a transmission is formed in one end of the fourth connecting part inwardly; the inner wall of the first groove is circumferentially provided with sawtooth-shaped protrusions; and a sawtooth-shaped second groove is formed in the outer wall of the output shaft of the transmission circumferentially, and the second groove is matched with the protrusions. The T-shaped shaft of the hub leak tester can make the transmission and the rotary motor simple in installation and stable in connection, reduces equipment failure rate, and improves equipment utilization rate.
Description
Technical field
The invention belongs to Work piece sealing technical field of measurement and test, be specifically related to the T-shaped axle of a kind of hub leak tester.
Background technology
Leakage tester, also known as air leak tester, leak tester, it is mainly used in automobile, internal combustion engine, motorcycle, pressure
The industries such as contracting machine, are to detect its parts leak condition, the visual plant of guarantee product quality.Wheel hub is vapour
The skeleton of wheel, is to use aluminium alloy compression casting molding, it is impossible to gas leakage.In order to detect wheel hub in the fabrication process
Whether there is leakage phenomenon, it is ensured that the tire the most not generation accident because of the leakage of wheel hub, it is necessary to
Product is leaked hunting detection as pressurization.In order to clearly find the defects such as wheel hub sand hole that may be present, crack,
Prior art uses hub leak tester wheel hub is carried out sealing propertytest, the wheel hub of inflation is placed in water,
The judgement of existing defects it is made whether, to ensure the up-to-standard of wheel hub according to the situation producing bubble.
Hub leak tester generally comprises water tank, water tank hoist cylinder, wheel hub chuck, wheel hub chuck oil cylinder, change
Speed case, electric rotating machine etc., the operation principle of hub leak tester is as follows: hub leak tester operationally, will be treated
Hub leak tester put into by detection wheel hub, and wheel hub chuck cylinder action makes wheel hub chuck clamp wheel hub to be detected,
When clamping puts in place, the water tank being filled with a certain amount of water is risen by water tank hoist cylinder, submergence wheel hub to be measured, when
When rising puts in place, to wheel hub interacvity air-filling to be measured, when intracavity air pressure reaches setting value, electric rotating machine starts,
Slowing down through change speed gear box, rotated a circle by wheel hub to be measured in water tank, water tank is under the effect of water tank hoist cylinder
Declining, decline and release pressure in wheel hub to be measured after putting in place, the pressure release rear-wheel hub chuck that puts in place unclamps, and detection terminates.
Wherein, change speed gear box and electric rotating machine are connected by T-shaped axle.
In prior art, the T-shaped axle of hub leak tester is as it is shown in figure 1, include fixing end 1 and connect end, even
Meet first connecting portion the 2, second connecting portion the 3, the 3rd connecting portion 4 and that end includes being coaxially disposed and being sequentially connected with
4th connecting portion 5, the first connecting portion 2 is connected with fixing end 1, and the 4th connecting portion 5 is along its center axis direction
Offer the open keyway 6 ' for connecting electric rotating machine, away from the 4th connecting portion 5 of the 3rd connecting portion 4
One end be inwardly provided with the first groove 7 of the output shaft for connecting change speed gear box, but, open keyway 6 '
Length short so that electric rotating machine connects instability, and open keyway 6 ' cracking easy to wear, easily makes
The key landing being connected with open keyway 6 ' on electric rotating machine, again such that electric rotating machine is installed built on the sand, no
Convenient；At other first groove 7 the most unstable with the connection of change speed gear box.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide the T-shaped axle of a kind of hub leak tester,
Change speed gear box and electric rotating machine simple installation, stable connection can be made, reduce equipment failure rate, improve and set
Standby mobility.
For reaching this purpose, the present invention by the following technical solutions:
The T-shaped axle of a kind of hub leak tester, including fixing end and connection end, described connection end includes coaxially setting
The first connecting portion, the second connecting portion, the 3rd connecting portion and the 4th connecting portion put and be sequentially connected with, described
A junction is connected with described fixing end, and described 4th connecting portion offers along its center axis direction for even
Connecing the closed keyway of electric rotating machine, the length of described closed keyway accounts for the length of described 4th connecting portion
3/1sts to four/2nd, the one end away from described 4th connecting portion of described 3rd connecting portion is inwardly arranged
Having the first groove of output shaft for connecting change speed gear box, the inwall hoop of described first groove is provided with zigzag
Projection, the outer wall hoop of the output shaft of described change speed gear box is provided with zigzag second groove, described second recessed
Groove matches with described projection.
Wherein, the length of described closed keyway account for described 4th connecting portion length 2/3rds.
Wherein, the length of described first groove is less than the length of described closed keyway.
Wherein, the length of described first groove be not more than described closed keyway length 1/2nd.
Wherein, the height of described projection be described first groove internal diameter 1/4th.
Wherein, described first connecting portion, described second connecting portion, described 3rd connecting portion and the described 4th are even
The radial dimension meeting portion gradually successively decreases.
Compared with prior art, the invention have the benefit that a kind of hub leak tester T-shaped of the present invention
Axle, including fixing end with connect end, connect the first connecting portion that end includes being coaxially disposed and being sequentially connected with, the
Two connecting portions, the 3rd connecting portion and the 4th connecting portion, the first connecting portion is connected with fixing end, the 4th connecting portion
The closed keyway for connecting electric rotating machine, the length of closed keyway is offered along its center axis direction
Account for the 4th connecting portion length 3/1sts to four/2nd, away from the 4th connecting portion of the 3rd connecting portion
One end is inwardly provided with the first groove of the output shaft for connecting change speed gear box, and the inwall hoop of the first groove sets
Having zigzag projection, the outer wall hoop of the output shaft of change speed gear box is provided with zigzag second groove, and second is recessed
Groove matches with projection；Owing to the stress-bearing capability of closed first groove is big, for connecting the key of electric rotating machine
When being placed in closed first groove, it is difficult to drop, is not easy to abrasion cracking；The length of closed keyway accounts for
3rd/to four/2nd of the length of four connecting portions, the growth of the length of closed keyway adds the 4th
The stress-bearing capability of connecting portion so that the installation of electric rotating machine is more stable；For connecting the first groove of change speed gear box
Inwall hoop be provided with zigzag projection, the outer wall hoop of the output shaft of change speed gear box is provided with zigzag second
Groove, the second groove matched and the protruding connection making change speed gear box are more stable；The hub leak tester of the present invention
T-shaped axle enable to change speed gear box and electric rotating machine simple installation, stable connection, reduce equipment failure rate,
Improve equipment mobility.
Accompanying drawing explanation
Fig. 1 is the structural representation of the T-shaped axle of the hub leak tester of prior art；
Fig. 2 is the structural representation of the T-shaped axle of the hub leak tester of the present invention.
Reference is as follows:
The fixing end of 1-；2-the first connecting portion；3-the second connecting portion；4-the 3rd connecting portion；5-the 4th connecting portion；
The closed keyway of 6-；6 '-open keyway；7-the first groove.
Detailed description of the invention
Technical scheme is further illustrated below by Fig. 2 and detailed description of the invention.
As in figure 2 it is shown, the T-shaped axle of a kind of hub leak tester of the present invention, including fixing end 1 and connection end,
Connect first connecting portion the 2, second connecting portion the 3, the 3rd connecting portion 4 that end includes being coaxially disposed and being sequentially connected with
With the 4th connecting portion 5, the first connecting portion 2 is connected with fixing end 1, and the 4th connecting portion 5 is along its center axis side
To the closed keyway 6 offered for connecting electric rotating machine, the length of closed keyway 6 accounts for the 4th connecting portion
3rd/to four/2nd of the length of 5, the one end away from the 4th connecting portion 5 of the 3rd connecting portion 4 is inside
Being provided with the first groove 7 for connecting change speed gear box, the inwall hoop of the first groove 7 is provided with zigzag projection,
The outer wall hoop of the output shaft of change speed gear box is provided with zigzag second groove, and the second groove matches with projection.
It should be noted that the closed keyway of the present invention, relative to open keyway, refer to the 4th even
Connecing in the axial direction in portion, the end of one end of closed keyway has certain with the end of the same end of the 4th connecting portion
Distance, also there is a certain distance the end of the other end of closed keyway with the end of the same end of the 4th connecting portion,
The most closed keyway is not penetrating in the axial direction of the 4th connecting portion；Same, open keyway refers to,
In the axial direction of the 4th connecting portion, the end of the same end of the end of one end of open keyway and the 4th connecting portion
Distance be zero, or the distance of the end at the two ends of the end at the two ends of open keyway and the 4th connecting portion
It is zero.Owing to the stress-bearing capability of closed first groove is big, it is placed in closing for connecting the key of electric rotating machine
During formula the first groove, it is difficult to drop, is not easy to abrasion cracking；The length of closed keyway 6 accounts for the 4th connection
3rd/to four/2nd of the length in portion 5, the growth of the length of closed keyway adds the 4th connection
The stress-bearing capability in portion so that the installation of electric rotating machine is more stable；For connecting the first groove 7 of change speed gear box
Inwall hoop is provided with zigzag projection, and the outer wall hoop of the output shaft of change speed gear box is provided with zigzag second recessed
Groove, the second groove matched and the protruding connection making change speed gear box are more stable；The T of the hub leak tester of the present invention
Profile shaft enables to change speed gear box and electric rotating machine simple installation, stable connection, reduces equipment failure rate, carries
Rise equipment mobility.
As the preferred version of the present invention, the length of closed keyway 6 accounts for the three of the length of the 4th connecting portion 5
/ bis-, to ensure the stress-bearing capability of the 4th connecting portion 5, prevent when electric rotating machine and change speed gear box work the
The fracture of four connecting portions 5.
As the preferred version of the present invention, the length of the first groove 7 is less than the length of closed keyway 6, more
Preferably, the length of the first groove 7 is not more than 1/2nd of the length of closed keyway 6, to ensure to become
Being connected firmly and stable of speed case；Further, 1/4th of the protruding internal diameter that height is the first groove,
The size of the second groove arranged on the outer wall of corresponding fixing bar matches with protruding size, so that speed change
Case connects more firm.
As the preferred version of the present invention, first connecting portion the 2, second connecting portion 3, the 3rd connecting portion 4 and
The radial dimension of four connecting portions 5 gradually successively decreases so that T-shaped axle is more securely connected on other parts.
A kind of T-shaped axle of the hub leak tester of the present invention, it is possible to make change speed gear box and electric rotating machine simple installation,
Stable connection, reduces equipment failure rate, improves equipment mobility.
Applicant states, above content is only presently preferred embodiments of the present invention, for the ordinary skill of this area
Personnel, according to the thought of the present invention, the most all will change, this
Description should not be construed as limitation of the present invention.
Claims (6)
1. the T-shaped axle of a hub leak tester, it is characterised in that include fixing end (1) and connect end,
The first connecting portion (2) that described connection end includes being coaxially disposed and be sequentially connected with, the second connecting portion (3),
Three connecting portions (4) and the 4th connecting portion (5), described first connecting portion (2) is with described fixing end (1) even
Connecing, described 4th connecting portion (5) offers for connecting the closed of electric rotating machine along its center axis direction
Keyway (6), the length of described closed keyway (6) accounts for two points of the length of described 4th connecting portion (5)
One of to 3/4ths, away from described 3rd connecting portion (4) described 4th connecting portion (5) one end to
Inside it is provided with first groove (7) of output shaft for connecting change speed gear box, the inwall of described first groove (7)
Hoop is provided with zigzag projection, and the outer wall hoop of the output shaft of described change speed gear box is provided with zigzag second recessed
Groove, described second groove matches with described projection.
The T-shaped axle of hub leak tester the most according to claim 1, it is characterised in that described closed
The length of keyway (6) accounts for 2/3rds of the length of described 4th connecting portion (5).
The T-shaped axle of hub leak tester the most according to claim 1, it is characterised in that described first recessed
The length of groove (7) is less than the length of described closed keyway (6).
The T-shaped axle of hub leak tester the most according to claim 3, it is characterised in that described first recessed
The length of groove (7) is not more than 1/2nd of the length of described closed keyway (6).
The T-shaped axle of hub leak tester the most according to claim 1, it is characterised in that described projection
Be highly described first groove internal diameter 1/4th.
The T-shaped axle of hub leak tester the most according to claim 1, it is characterised in that described first even
Connect portion (2), described second connecting portion (3), described 3rd connecting portion (4) and described 4th connecting portion (5)
Radial dimension gradually successively decrease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326432.0A CN105910768A (en) | 2016-05-17 | 2016-05-17 | T-shaped shaft of hub leak tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326432.0A CN105910768A (en) | 2016-05-17 | 2016-05-17 | T-shaped shaft of hub leak tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105910768A true CN105910768A (en) | 2016-08-31 |
Family
ID=56749155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610326432.0A Pending CN105910768A (en) | 2016-05-17 | 2016-05-17 | T-shaped shaft of hub leak tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105910768A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002013539A (en) * | 2000-06-29 | 2002-01-18 | Koyo Seiko Co Ltd | Rolling bearing and assembly of the same with stepped shaft |
| AU2012100738A4 (en) * | 2012-05-23 | 2012-08-30 | Hengdian Group Linix Motor Co,.Ltd | An Axiality Detecting Device For Stepped Shafts |
| CN103277400A (en) * | 2013-06-20 | 2013-09-04 | 苏州速腾电子科技有限公司 | Driving shaft for speed reducer |
| CN103671465A (en) * | 2014-01-17 | 2014-03-26 | 镇江大力液压马达股份有限公司 | Cycloid hydraulic motor output shaft and machining method thereof |
| CN203979179U (en) * | 2014-08-11 | 2014-12-03 | 川源(中国)机械有限公司 | A kind of coupling shaft for Y type standard electromotor |
| CN204851971U (en) * | 2015-07-21 | 2015-12-09 | 宁波捷成轴业有限公司 | Step axle |
| CN205748824U (en) * | 2016-05-17 | 2016-11-30 | 昆山六丰机械工业有限公司 | A kind of T-shaped axle of hub leak tester |
-
2016
- 2016-05-17 CN CN201610326432.0A patent/CN105910768A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002013539A (en) * | 2000-06-29 | 2002-01-18 | Koyo Seiko Co Ltd | Rolling bearing and assembly of the same with stepped shaft |
| AU2012100738A4 (en) * | 2012-05-23 | 2012-08-30 | Hengdian Group Linix Motor Co,.Ltd | An Axiality Detecting Device For Stepped Shafts |
| CN103277400A (en) * | 2013-06-20 | 2013-09-04 | 苏州速腾电子科技有限公司 | Driving shaft for speed reducer |
| CN103671465A (en) * | 2014-01-17 | 2014-03-26 | 镇江大力液压马达股份有限公司 | Cycloid hydraulic motor output shaft and machining method thereof |
| CN203979179U (en) * | 2014-08-11 | 2014-12-03 | 川源(中国)机械有限公司 | A kind of coupling shaft for Y type standard electromotor |
| CN204851971U (en) * | 2015-07-21 | 2015-12-09 | 宁波捷成轴业有限公司 | Step axle |
| CN205748824U (en) * | 2016-05-17 | 2016-11-30 | 昆山六丰机械工业有限公司 | A kind of T-shaped axle of hub leak tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160831 |
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| RJ01 | Rejection of invention patent application after publication |