CN109029877A - A kind of pneumatic system of the air-tightness detection device of axle shell - Google Patents

A kind of pneumatic system of the air-tightness detection device of axle shell Download PDF

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Publication number
CN109029877A
CN109029877A CN201811120729.7A CN201811120729A CN109029877A CN 109029877 A CN109029877 A CN 109029877A CN 201811120729 A CN201811120729 A CN 201811120729A CN 109029877 A CN109029877 A CN 109029877A
Authority
CN
China
Prior art keywords
axle shell
gas source
pressing device
air
pneumatic system
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
Application number
CN201811120729.7A
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Chinese (zh)
Inventor
俞俊海
武佳佳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Broad Letter Electromechanical Co Ltd
Original Assignee
Hefei Broad Letter Electromechanical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hefei Broad Letter Electromechanical Co Ltd filed Critical Hefei Broad Letter Electromechanical Co Ltd
Priority to CN201811120729.7A priority Critical patent/CN109029877A/en
Publication of CN109029877A publication Critical patent/CN109029877A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3281Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell
    • G01M3/329Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell for verifying the internal pressure of closed containers

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The invention discloses a kind of pneumatic systems of the air-tightness detection device of axle shell, pneumatic system provides gas source, gas source is through pressing device under the whole pressing device of electromagnetic steering valve arrival, both ends fixed ring pressing device, bearing hole to fixed axle shell, gas source reaches inner cavity inlet duct through electromagnetic steering valve, axle shell inside is inflated, the pressure that can be observed inside axle shell is shown by the pressure gauge of external gas source, to judge the air tightness performance of axle shell.This invention simplifies device operation systems, simplify the step of device operates, reduce the operation difficulty of device, save manpower and material resources, the pneumatic system field of the air-tightness detection device suitable for axle shell.

Description

A kind of pneumatic system of the air-tightness detection device of axle shell
Technical field
The present invention relates to pneumatic system fields, relate generally to a kind of pneumatic system of the air-tightness detection device of axle shell.
Background technique
Axle housing, is installation main reducing gear, differential mechanism, semiaxis, wheel assembly matrix, and main function is to support and master is protected to subtract Fast device, differential mechanism and semiaxis etc..In general, common rigid drive axle axle housing is one and is supported on left and right driving wheel On rigid hollow beam, the driving members such as main reducing gear, differential mechanism, semiaxis are installed therein, and axle housing is through longitudinal leaf spring and vehicle Frame or compartment are connected.It is one of main component parts of running gear again that it, which is the important component of drive axle,.
The device operation system detected at present to the air-tightness of axle shell is mainly manual operation, this operating system More complicated, complex for operation step, operation difficulty is higher, wasting manpower and material resources.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of pneumatic system of the air-tightness detection device of axle shell, letters Change device operation system, simplifies device operating procedure, reduce the operation difficulty of device, use manpower and material resources sparingly.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that: a kind of air-leakage test of axle shell The pneumatic system of device, wherein detection device includes rack, axle housing support device, whole pressing device, both ends fixed ring compression Pressing device, balancing device, inner cavity inlet duct under device, bearing hole, the rack fixes holding level on the ground, described Axle housing support device includes axle housing support plate, soft rubber pad, and the axle housing support plate uses the screw side of being fixed on the rack center Position, the soft rubber pad are fixed in axle housing support plate, and the entirety pressing device is located above axle housing support device, described Whole pressing device includes holder device, axle housing compression bracket, whole compression cylinder, cylinder supports frame, the holder device weldering It connects in rack side, the holder device top is shape of threads column construction, and the axle housing compresses bracket one end and the bracket Device top is hinged, and the motion bar and the axle housing compression bracket other end of the entirety compression cylinder are hinged, the whole pressure Tight cylinders providing power promotes the axle housing to compress bracket and compresses downwards, and the cylinder supports frame is welded on the rack other side, institute Whole compression cylinder is stated by being mounted in cylinder supports frame, the entirety compression cylinder is with the cylinder supports frame junction Structure may be reversed, the both ends fixed ring pressing device includes positioning support, cylinder, ring pressing device, and the positioning support makes It is screwed at rack both ends, the cylinder is fixed by screws in the outer side of the positioning support, and the ring compresses dress The end for being fixed on the cylinder motion bar is set, the cylinders providing power promotes the ring pressing device inwardly to compress, described Pressing device includes bearing hole cylinder, bearing hole gland, holder device under bearing hole, and the holder device is welded on the entirety The holder device side of pressing device, the bearing hole cylinder are fixed on above the holder device using screw, the bearing Hole gland is fixed on the movable boom end of the bearing hole cylinder, and the bearing hole cylinders providing power promotes the bearing hole Gland compresses downwards, and the balancing device includes otic placode, T-bolt, and the otic placode is welded on the branch of the whole pressing device The other side of rack device, the T-bolt is by the hole on the otic placode to balance whole pressing device, the inner cavity air inlet The pressure gauge of external gas source is set up at device air inlet, the inner cavity inlet duct is fixed on axle housing support plate, soft rubber pad is passed through, The inside of axle shell is connected, the pressure gauge of the external gas source is built up in one end of rack, aobvious by the pressure gauge of external gas source Show the pressure that can be observed inside axle shell.
Wherein pneumatic system includes pressure gauge, solenoid directional control valve, whole pressing device, two end ring pressing devices, bearing hole Lower pressing device, inner cavity inlet duct, the pneumatic system provide gas source, and the gas source is reached through the solenoid directional control valve DT1 The entirety pressing device provides power for the whole compression cylinder, and the whole bracket that compresses is promoted to compress vehicle bridge downwards Shell, and the position of axle shell is fixed under balancing device effect, described in the gas source is reached through the solenoid directional control valve DT3 Both ends fixed ring pressing device is the cylinders providing power of the both ends fixed ring pressing device, promotes the both ends loop device Axle shell both ends are inwardly compressed, are bonded axle shell both ends under the effect of loop device port silicagel pad, described in gas source warp Solenoid directional control valve DT2 reaches pressing device under the bearing hole, is the bearing hole cylinders providing power, promotes the bearing hole Gland compresses downwards, is bonded axle shell bearing under silicagel pad effect, the gas source is reached through the solenoid directional control valve DT4 The inner cavity inlet duct, is inflated axle shell inside, and axle shell can be observed by being shown by the pressure gauge of external gas source Internal pressure, to judge the air tightness performance of axle shell.
Further, described solenoid directional control valve DT1, DT2, DT3, DT4 are gas solenoid valve.
A kind of pneumatic system of the air-tightness detection device of axle shell simplifies device to the present invention by adopting the above technical scheme Operating system simplifies the step of device operates, reduces the operation difficulty of device, save manpower and material resources, is suitable for axle shell Air-tightness detection device pneumatic system field.
Detailed description of the invention
Fig. 1 is the structural front view of detection device.
Fig. 2 is the structure top view of detection device.
Fig. 3 be detection device rack, axle housing support device, whole pressing device side view.
Fig. 4 is structural front view when detecting axle shell.
Fig. 5 is pneumatic principle schematic diagram of the invention.
Specific embodiment
The present invention is a kind of pneumatic system of the air-tightness detection device of axle shell, below in conjunction with attached drawing, to the present invention It is described in detail.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of pneumatic system of the air-tightness detection device of axle shell, wherein detection dress It sets including pressing device under rack 1, axle housing support device 3, whole pressing device 4, both ends fixed ring pressing device 5, bearing hole 6, balancing device 7, inner cavity inlet duct 8, the rack 1 fix holding level on the ground, and the axle housing support device 3 includes Axle housing support plate 9, soft rubber pad 10, the axle housing support plate 9 use the screw side of being fixed on the rack central location, the soft rubber Rubber mat 10 is fixed in axle housing support plate 9, and the entirety pressing device 4 is located at 3 top of axle housing support device, the whole compression Device 4 includes holder device 11, axle housing compression bracket 12, whole compression cylinder 13, cylinder supports frame 14, the holder device 11 It is welded on 1 side of rack, 11 top of holder device is shape of threads column construction, and the axle housing compresses 12 one end of bracket and institute State that 11 top of holder device is hinged, the motion bar and the axle housing of the entirety compression cylinder 13 compress 12 other end of bracket hinge It connecing, the entirety compression cylinder 13 provides power, and promote the axle housing to compress bracket 12 and compresses downwards, the cylinder supports frame 14 It is welded on 1 other side of rack, the entirety compression cylinder 13 is by being mounted in cylinder supports frame 14, the entirety compression cylinder 13 with 14 junction of cylinder supports frame be may be reversed structure, the both ends fixed ring pressing device 5 include positioning support 15, Cylinder 16, ring pressing device 17, the positioning support 15 are fixed on 1 both ends of rack using screw, and the cylinder 16 passes through screw It is fixed on the outer side of the positioning support 15, the ring pressing device 17 is fixed on the end of 16 motion bar of cylinder, institute It states cylinder 16 and power is provided, promote the ring pressing device 17 inwardly to compress, pressing device 6 includes bearing hole under the bearing hole Cylinder 18, bearing hole gland 19, holder device 20, the branch that the holder device 20 is welded on the whole pressing device 4 are rack-mounted 11 sides are set, the bearing hole cylinder 18 is fixed on 20 top of holder device using screw, and the bearing hole gland 19 is solid It is scheduled on the movable boom end of the bearing hole cylinder 18, the bearing hole cylinder 18 provides power, promotes the bearing hole gland 19 compress downwards, and the balancing device 7 includes otic placode 21, T-bolt 22, and the otic placode 21 is welded on the whole pressing device The other side of 4 holder device 11, the T-bolt 22 by the hole on the otic placode 21 to balance whole pressing device 4, The pressure gauge 2 of external gas source is set up at 8 air inlet of inner cavity inlet duct, the inner cavity inlet duct 8 is fixed on axle housing support Plate 3 passes through soft rubber pad 10, connects the inside of axle shell, and the pressure gauge 2 of the external gas source is built up in one end of rack 1, leads to Crossing the display of external gas source pressure gauge 2 can detecte axle shell internal pressure, to judge the air tightness performance of axle shell.
As shown in figure 5, wherein pneumatic system includes pressure gauge 2, solenoid directional control valve, whole pressing device 4, two end ring compression Pressing device 6, inner cavity inlet duct 8 under device 5, bearing hole, the pneumatic system provide gas source, and the gas source is through the electromagnetism Reversal valve DT1 reaches the whole pressing device 4, provides power for the whole compression cylinder 13, the axle housing is promoted to compress Bracket 12 compresses downwards axle shell, and the position of axle shell is fixed under the balancing device 7 effect, and the gas source is through the electricity Magnetic reversal valve DT3 reaches the both ends fixed ring pressing device 5, provides for the cylinder 16 of the both ends fixed ring pressing device 5 Power promotes the both ends loop device 17 inwardly to compress axle shell both ends, pastes under the silicagel pad effect of 17 mouthfuls of the loop device end Axle shell both ends are closed, the gas source reaches pressing device 6 under the bearing hole through the solenoid directional control valve DT2, is the bearing Hole cylinder 18 provides power, promotes the bearing hole gland 19 to compress downwards, is bonded vehicle bridge columella under silicagel pad effect It holds, the gas source reaches the inner cavity inlet duct 8 through the solenoid directional control valve DT4, is inflated, passes through to axle shell inside The pressure gauge 2 of external gas source shows the pressure that can be observed inside axle shell, to judge the air tightness performance of axle shell.
Further, described solenoid directional control valve DT1, DT2, DT3, DT4 are gas solenoid valve.
A kind of pneumatic system of the air-tightness detection device of axle shell simplifies device to the present invention by adopting the above technical scheme Operating system simplifies the step of device operates, reduces the operation difficulty of device, save manpower and material resources, is suitable for axle shell Air-tightness detection device pneumatic system field.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.

Claims (2)

1. a kind of pneumatic system of the air-tightness detection device of axle shell, it is characterised in that: pneumatic system includes pressure gauge, electromagnetism Pressing device, inner cavity inlet duct under reversal valve, whole pressing device, two end ring pressing devices, bearing hole, the pneumatic system Gas source is provided, the gas source reaches the whole pressing device through the solenoid directional control valve DT1, mentions for the whole compression cylinder For power, the whole bracket that compresses is promoted to compress axle shell downwards, and fixes axle shell under balancing device effect Position, the gas source reach the both ends fixed ring pressing device through the solenoid directional control valve DT3, are the both ends fixed ring pressure The cylinders providing power of tight device, promotes the both ends loop device inwardly to compress axle shell both ends, in loop device port silicon Rubber mat effect is lower to be bonded axle shell both ends, and the gas source reaches pressing device under the bearing hole through the solenoid directional control valve DT2, For the bearing hole cylinders providing power, the bearing hole gland is promoted to compress downwards, is bonded vehicle under silicagel pad effect Axle housing bearing, the gas source reach the inner cavity inlet duct through the solenoid directional control valve DT4, fill to axle shell inside Gas shows the pressure that can be observed inside axle shell by the pressure gauge of external gas source, to judge the air-tightness of axle shell Energy.
2. a kind of pneumatic system of the air-tightness detection device of axle shell as described in claim 1, it is characterised in that: the electricity Magnetic reversal valve DT1, DT2, DT3, DT4 are gas solenoid valve.
CN201811120729.7A 2018-09-26 2018-09-26 A kind of pneumatic system of the air-tightness detection device of axle shell Pending CN109029877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811120729.7A CN109029877A (en) 2018-09-26 2018-09-26 A kind of pneumatic system of the air-tightness detection device of axle shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811120729.7A CN109029877A (en) 2018-09-26 2018-09-26 A kind of pneumatic system of the air-tightness detection device of axle shell

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CN109029877A true CN109029877A (en) 2018-12-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112903210A (en) * 2021-04-09 2021-06-04 四川建安工业有限责任公司 Dry-type air tightness detection test bed for punching and welding axle housing and process method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103063372A (en) * 2012-12-22 2013-04-24 青特集团有限公司 Axle housing automatic leakage testing device
CN203191176U (en) * 2012-12-22 2013-09-11 青特集团有限公司 An axle housing automatic leakage testing device
CN203940961U (en) * 2014-04-15 2014-11-12 沙洲职业工学院 A kind of Automobile axle housing weld joint air-tight pick-up unit
CN104266801A (en) * 2014-09-16 2015-01-07 沙洲职业工学院 Automobile axle housing leakage detection device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103063372A (en) * 2012-12-22 2013-04-24 青特集团有限公司 Axle housing automatic leakage testing device
CN203191176U (en) * 2012-12-22 2013-09-11 青特集团有限公司 An axle housing automatic leakage testing device
CN203940961U (en) * 2014-04-15 2014-11-12 沙洲职业工学院 A kind of Automobile axle housing weld joint air-tight pick-up unit
CN104266801A (en) * 2014-09-16 2015-01-07 沙洲职业工学院 Automobile axle housing leakage detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112903210A (en) * 2021-04-09 2021-06-04 四川建安工业有限责任公司 Dry-type air tightness detection test bed for punching and welding axle housing and process method thereof

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Application publication date: 20181218

RJ01 Rejection of invention patent application after publication