CN220120302U - Air tightness detection tool for power takeoff - Google Patents
Air tightness detection tool for power takeoff Download PDFInfo
- Publication number
- CN220120302U CN220120302U CN202320969108.6U CN202320969108U CN220120302U CN 220120302 U CN220120302 U CN 220120302U CN 202320969108 U CN202320969108 U CN 202320969108U CN 220120302 U CN220120302 U CN 220120302U
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- China
- Prior art keywords
- power takeoff
- base
- sleeve
- positioning seat
- detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 5
- 238000007654 immersion Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 12
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model provides a power takeoff gas tightness detects frock, includes the base, installs the positioning seat that is used for the product location of survey on the base, is located the two double-screw bolts of positioning seat outside symmetry installation on the base, and the clamp plate is installed through nut fixed mounting in double-screw bolt upper portion, and clamp plate center department installs the holding bolt perpendicularly; the outer edge of the shaft diameter of the shell of the tested product is provided with a sealing ring and a sleeve, the upper part of the sleeve is positioned below the fastening bolt, and the upper part of the sleeve is provided with a pipe joint; the screw thread is arranged on the screw hole on the side surface of the tested product to be blocked. The air tightness detection tool for the power takeoff has the advantages of simple structure and high reliability, overcomes the defects of complicated oil immersion detection and other methods, improves the detection efficiency, and reduces the detection cost.
Description
Technical Field
The utility model relates to the technical field of mechanical detection.
Background
With the rapid development of economy in China, the requirements of engineering machinery products required by infrastructure are gradually increased, and the power takeoff assembly product is widely applied as an adapting product of engine power output with lower cost and reliable performance. The working principle is as follows: after the gear shaft is assembled with related components such as a bearing, a shell, a flange and the like, the gear shaft is fixed on an engine to be meshed with a gear of a gear train for power output. Because the bearing bears the load effect and rotates at a high speed, the bearing needs to be lubricated, required lubricating oil enters the inner cavity of the power takeoff from the oil hole at the shaft diameter of the shell, sealing elements, namely rotating shaft oil seal lubricating oil, are designed and installed on the power takeoff to prevent the lubricating oil from leaking to the outside of the power takeoff through the oil seal sealing flange, and the air tightness of the power takeoff is detected as required before delivery as a preventive detection measure of oil seal oil leakage. The air tightness detection usually adopts a method of bench test before delivery or oil immersion pressurization leakage detection, and has low detection efficiency and low reliability.
Disclosure of Invention
In order to solve the problems of the existing air tightness detection of the power takeoff, the utility model provides an air tightness detection tool of the power takeoff.
The technical scheme adopted by the utility model for achieving the purpose is as follows: the utility model provides a power takeoff gas tightness detects frock, includes base 11, installs the positioning seat 2 that is used for the location of survey product 1 on the base 11, and two double-screw bolts 7 are installed to the symmetry on the base 11 in the positioning seat 2 outside, and clamp plate 6 is installed through nut 5 fixed to double-screw bolt 7 upper portion, and clamp plate 6 center department installs the holding bolt 4 perpendicularly; a sealing ring 9 and a sleeve 8 are arranged on the outer edge of the shaft diameter of the shell of the tested product 1, the upper part of the sleeve 8 is positioned below the fastening bolt 4, and a pipe joint 3 is arranged on the upper part of the sleeve 8; the screw plug 10 is arranged on the screw hole on the side surface of the tested product 1.
The positioning seat 2 is of a cylindrical structure, and the inner side edge of the lower end of the positioning seat 2 is fixed on the base 11 through bolts.
An end plate 12 is arranged at the lower end of the fastening bolt 4.
The air tightness detection tool for the power takeoff has the advantages of simple structure and high reliability, overcomes the defects of complicated oil immersion detection and other methods, improves the detection efficiency, and reduces the detection cost.
Drawings
FIG. 1 is a front view cross section structure diagram of a power takeoff air tightness detection tool.
In the figure: 1. the device comprises a tested product, 2, a positioning seat, 3, a pipe joint, 4, a fastening bolt, 5, a nut, 6, a pressing plate, 7, a stud, 8, a sleeve, 9, a sealing ring, 10, a thread plug, 11, a base, 12 and an end plate.
Detailed Description
Through analysis and confirmation, the air tightness of the power takeoff is detected by oil immersion and pressurization or by other modes, and the purpose is to ensure the assembly quality of the assembled sealing assembly, meet the requirement of service performance, design the tool to be placed on a workbench according to the characteristics of the power takeoff product and the leakage data of a test, and set a specified test parameter on an air leakage detector to serve as a judgment basis of a detection result.
As shown in FIG. 1, the air tightness detection clamp of the utility model has a cylindrical positioning seat 2, and the inner edge of the lower end of the positioning seat 2 is fixed on a base 11 through bolts. Two studs 7 are symmetrically arranged on the base 11 and positioned on the outer side of the positioning seat 2, a pressing plate 6 is fixedly arranged on the upper part of each stud 7 through a nut 5, a fastening bolt 4 is vertically arranged at the center of each pressing plate 6, and an end plate 12 is arranged at the lower end of each fastening bolt 4; a sealing ring 9 and a sleeve 8 are arranged on the outer edge of the shaft diameter of the shell of the tested product 1, the upper part of the sleeve 8 is positioned below the fastening bolt 4, and a pipe joint 3 is arranged on the upper part of the sleeve 8; the screw plug 10 is arranged on the screw hole on the side surface of the tested product 1.
When the device is used, a product 1 to be tested (a power takeoff) is placed in a positioning seat 2 on a base 11 for positioning, a sealing ring 9 and a sleeve 8 are arranged on the outer edge of a shaft diameter position protruding from the middle of the power takeoff, the sleeve 8 is tightly pressed by a set screw 4 at the upper part, a thread plug 10 is arranged in a threaded hole on the side surface of the power takeoff, so that a closed space is formed in the inner cavity of the product, at the moment, a detecting instrument is started for detecting, gas is input through a pipe joint 3, the leakage of the product is detected in four processes of pressurization, equal pressure, balance and detection, and the value of the leakage is within a specified range, so that the product is qualified in detection. Through batch product detection verification, the oil seal oil leakage monitoring device has a good monitoring effect on reducing oil seal oil leakage of a power takeoff product, is reasonable and reliable, and is favorable for ensuring normal production.
Claims (3)
1. The utility model provides a power takeoff gas tightness detects frock which characterized in that: the device comprises a base (11), wherein a positioning seat (2) for positioning a product (1) to be tested is arranged on the base (11), two studs (7) are symmetrically arranged on the base (11) and positioned on the outer side of the positioning seat (2), a pressing plate (6) is fixedly arranged on the upper part of each stud (7) through a nut (5), and a fastening bolt (4) is vertically arranged at the center of the pressing plate (6); a sealing ring (9) and a sleeve (8) are arranged on the outer edge of the shaft diameter of the shell of the tested product (1), the upper part of the sleeve (8) is positioned below the fastening bolt (4), and a pipe joint (3) is arranged on the upper part of the sleeve (8); a screw thread plug (10) is arranged on a screw thread hole on the side surface of the tested product (1).
2. The power takeoff air tightness detection tool according to claim 1, wherein: the positioning seat (2) is of a cylindrical structure, and the inner side edge of the lower end of the positioning seat (2) is fixed on the base (11) through bolts.
3. The power takeoff air tightness detection tool according to claim 1, wherein: an end plate (12) is arranged at the lower end of the fastening bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320969108.6U CN220120302U (en) | 2023-04-26 | 2023-04-26 | Air tightness detection tool for power takeoff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320969108.6U CN220120302U (en) | 2023-04-26 | 2023-04-26 | Air tightness detection tool for power takeoff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220120302U true CN220120302U (en) | 2023-12-01 |
Family
ID=88913607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320969108.6U Active CN220120302U (en) | 2023-04-26 | 2023-04-26 | Air tightness detection tool for power takeoff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220120302U (en) |
-
2023
- 2023-04-26 CN CN202320969108.6U patent/CN220120302U/en active Active
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