CN116609006B - Gearbox part gas tightness detects frock - Google Patents
Gearbox part gas tightness detects frock Download PDFInfo
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- CN116609006B CN116609006B CN202310758119.4A CN202310758119A CN116609006B CN 116609006 B CN116609006 B CN 116609006B CN 202310758119 A CN202310758119 A CN 202310758119A CN 116609006 B CN116609006 B CN 116609006B
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- 238000007789 sealing Methods 0.000 claims abstract description 183
- 238000005192 partition Methods 0.000 claims abstract description 44
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 description 12
- 230000003028 elevating effect Effects 0.000 description 6
- 238000010030 laminating Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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
- G01M3/26—Investigating 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
-
- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a transmission part air tightness detection tool, which relates to the technical field of air tightness detection and comprises a partition sealing mechanism, an air pressure testing mechanism, a positioning clamping mechanism and an auxiliary sealing mechanism, wherein the partition sealing mechanism comprises a sealing chamber, an outer edge attaching part is arranged on the sealing chamber, and a separation plate capable of separating an inner cavity of a half-shell of a transmission into at least two independent sealing cavities is arranged on the outer edge attaching part. According to the invention, the partition sealing mechanism is arranged, at least one partition plate is arranged at the top of the sealing chamber, the sealing piece of the partition plate can divide the inner cavity of the half-shell of the gearbox into at least two independent sealing cavities, and the air tightness of each independent sealing cavity is detected by using the air pressure testing mechanism, so that whether the whole sealing performance of the half-shell of the gearbox is qualified or not can be judged, and the specific area of the air leakage part can be judged.
Description
Technical Field
The invention relates to the technical field of air tightness detection, in particular to an air tightness detection tool for a gearbox part.
Background
The gearbox housing is an important component in the motor vehicle and serves to provide installation space for the gear change mechanism. The gearbox shell is mainly divided into two splicing modes, namely a front shell splicing mode and a rear shell splicing mode, and an upper shell splicing mode and a lower shell splicing mode. Because the gear box is also lubricated by adding lubricating oil, the gear box is required to be tested for sealing performance, and the tightness is tested by using an air tightness detection mode at present.
The air tightness detection needs to effectively seal all the open holes of the gearbox half shell, then the gearbox half shell can be inflated, the air pressure change is detected, and the air tightness is judged. The existing air tightness detection tool can seal the whole of the half shell of the gearbox and check the whole sealing performance of the half shell of the gearbox, but when air leakage occurs, the existing air tightness detection tool cannot judge which part of the half shell of the gearbox is air leakage, and cannot serve the subsequent links of leak repairing and production defect prevention.
The air tightness detection tool for the automobile gearbox part disclosed in China patent application No. 201110255202.7 can finish the air tightness detection of the gearbox part, but cannot accurately position and judge the air leakage area.
Disclosure of Invention
The invention provides a gearbox part air tightness detection tool which can detect partition tightness of a gearbox half shell, and the position of an air leakage area is judged by dividing a plurality of detection areas so as to solve the problems in the prior art.
In order to achieve the above object, the present invention adopts the following technical scheme.
The utility model provides a gearbox part gas tightness detects frock, includes subregion sealing mechanism, subregion sealing mechanism includes the seal chamber, the top of seal chamber is provided with the outer fringe laminating portion that cooperatees with the open outer fringe profile of gearbox half-shell, is provided with the outer fringe sealing strip that cooperatees with the open outer fringe profile on the outer fringe laminating portion, is provided with at least one division board on the outer fringe laminating portion in the outer fringe sealing strip profile, and the division board can separate the inner chamber of gearbox half-shell into two at least independent sealed chambers; the air pressure testing mechanism can independently convey air to each independent sealing cavity and test air pressure change in the independent sealing cavity; the positioning and clamping mechanism can fix the gearbox half shell on the outer edge attaching part; and the auxiliary sealing mechanism can seal holes outside the outline of the open outer edge of the half shell of the gearbox.
Preferably, at least one through groove communicated with the inner cavity of the sealing chamber is formed in the outer edge attaching part, the separation plate is movably arranged on the through groove, and the separation plate can seal the through groove.
Preferably, a telescopic cylinder is arranged in the sealing chamber, and the telescopic cylinder can drive the partition plate to extend out of the through groove from the sealing chamber.
Preferably, the division plate comprises a plate body with the edge matched with the inner cavity of the half-shell of the gearbox and a sealing piece arranged on the plate body, and when the telescopic cylinder drives the division plate to prop against the inner cavity of the half-shell of the gearbox, the sealing piece can seal a gap between the through groove and the plate body and can seal the gap between the half-shell of the gearbox and the plate body.
Preferably, the seal comprises a first seal strip, a second seal strip and a third seal strip. The first sealing strip is arranged on the edge of the matching of the plate body and the inner cavity of the half shell of the gearbox; the second sealing strip is arranged on the matched part of the upper edges of the plate body and the through groove; the third sealing strip is arranged on the matched part of the lower edges of the plate body and the through groove.
Preferably, a baffle is fixed at the end part of the plate body, which is positioned in the sealing chamber, and the baffle can tightly prop the third sealing strip against the gap between the plate body and the lower edge of the through groove.
Preferably, the air pressure testing mechanism comprises an air pump, an air pressure gauge and at least two air delivery pipes, wherein each air delivery pipe is respectively communicated with each independent sealing cavity, air of the air pump can be injected into the independent sealing cavity through the air delivery pipe, and the air pressure gauge can measure air pressure of the air delivery pipe communicated with the independent sealing cavity.
Preferably, the auxiliary sealing mechanism comprises a fixed sealing plug and a movable sealing mechanism, the movable sealing mechanism comprises a first sealing plug matched with the outer edge of the gear installation cavity and a first movable rod, and the first movable rod can drive the first sealing plug to slide along the inner wall of the gear installation cavity; the fixed sealing plug comprises a second sealing plug matched with the bearing installation cavity and a third sealing plug matched with an exposed opening on the gearbox half shell, and a gas transmission pipe of the gas pressure testing mechanism is communicated with a cavity between the first sealing plug and the second sealing plug.
Preferably, the positioning and clamping mechanism comprises a plurality of positioning columns fixed on the outer edge attaching part and a pressing rod arranged on the frame, and the pressing rod can press the gearbox half-shell on the outer edge attaching part.
Compared with the prior art, the invention has the beneficial effects that: by arranging the partition sealing mechanism, at least one partition plate is arranged on the outer edge joint part at the top of the sealing chamber, the partition plate can divide the inner cavity of the half-shell of the gearbox into at least two independent sealing cavities, and the air tightness of each independent sealing cavity is detected by using the air pressure testing mechanism, so that whether the whole sealing performance of the half-shell of the gearbox is qualified or not can be judged, and the specific area of the air leakage part can be judged; through setting up logical groove and flexible cylinder, can withdraw the division board in the sealed room to detect whether the phenomenon that the division board just plugged up the gas leakage region appears, make the air tightness detect more accurately.
Drawings
FIG. 1 is a schematic view of the present invention in use.
FIG. 2 is a schematic illustration of the movable seal mechanism and the zoned seal mechanism of the present invention in cooperation with a gearbox half-shell.
Fig. 3 is a schematic diagram of a prior art half-shell structure of a transmission.
Fig. 4 is a schematic structural view of the movable sealing mechanism and the partition sealing mechanism of the present invention.
Fig. 5 is a schematic structural view of the seal chamber of the present invention.
Fig. 6 is a top view of the zoned seal mechanism of the present invention.
Fig. 7 is a schematic view of the installation structure of the second partition plate of the present invention.
Fig. 8 is a partial enlarged view at a in fig. 7.
Fig. 9 is a perspective view of a second divider plate of the present invention.
In the figure: 1. the device comprises a frame, 2, a lifting platform, 21, a lifting cylinder, 3, a partition sealing mechanism, 31, a sealing chamber, 32, an outer edge attaching part, 321, an outer edge sealing strip, 33, a positioning column, 34, a first division plate, 35, a second division plate, 351, a first sealing strip, 352, a second sealing strip, 353, a third sealing strip, 36, a third division plate, 37, a fourth division plate, 38, a baffle, 381, a guide rod, 39, a telescopic cylinder, 4, a gearbox half shell, 41, a gear mounting cavity, 42, a bearing mounting cavity, 43, an exposed opening, 5, a movable sealing mechanism, 51, a first sealing plug, 52, a first movable rod, 53, a third sealing plug, 54, a third movable rod, 55, a second sealing plug, 56, a second movable rod, 6, an air pressure testing mechanism, 61, a first air pipe, 62, a second air pipe, 63, a third air pipe, 64, a fourth air pipe, 65, a fifth air pipe, 66, a sixth air pipe, 7 and a compression rod.
Detailed Description
The following description of the embodiments of the present invention will be made more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 3, the existing gearbox half-shell 4 generally includes a bottom open peripheral contour, a gear mounting cavity 41, a bearing mounting cavity 42, and an exposed opening 43. The open outer contour may interface with the other half of the gearbox housing to form a complete gearbox housing.
As shown in fig. 1 to 2, the tool for detecting the air tightness of the gearbox part provided by the embodiment of the invention comprises a partition sealing mechanism 3, an air pressure testing mechanism 6, a positioning clamping mechanism and an auxiliary sealing mechanism, wherein the partition sealing mechanism 3 can divide an inner cavity of the gearbox into a plurality of independent sealing cavities, and then the air pressure testing mechanism 6 is used for detecting the air tightness of each independent sealing cavity, so that the air tightness of the whole gearbox half shell 4 can be detected, the air leakage area can be rapidly distinguished, and the air leakage position can be timely found.
The auxiliary sealing mechanism can seal the other open holes on the gearbox in a blocking way, and the auxiliary sealing mechanism is matched with the partition sealing mechanism 3 to detect the air tightness. The positioning and clamping mechanism has the function of positioning and fixing the gearbox half shell 4, and is convenient for sealing and airtightness detection.
The specific structure of each part is described in detail below.
As shown in fig. 4 to 9, the partition sealing mechanism 3 includes a sealing chamber 31, the sealing chamber 31 is fixed to the elevating platform 2 of the frame 1, four elevating cylinders 21 are installed at the bottom of the elevating platform 2, and the elevating of the elevating platform 2 is realized by the expansion and contraction of the elevating cylinders 21. An outer edge attaching portion 32 having a larger contour than the open outer edge contour of the half-case 4 is fixed to the top of the seal chamber 31, and an outer edge sealing strip 321 having the same contour as the open outer edge contour is fixed to the outer edge attaching portion 32, and when the half-case 4 is pressed against the outer edge attaching portion 32, the outer edge sealing strip 321 can seal a gap between the outer edge attaching portion 32 and the open outer edge of the half-case 4.
Referring to fig. 5 and 6, four through grooves communicating with the inner cavity of the sealing chamber 31 are formed in the outer edge attaching portion 32, each through groove is provided with a movable partition plate, and the partition plates are provided with sealing members capable of sealing the through grooves. The sealing chamber 31 has only the through groove communicating with the outside, and when the through groove is sealed, the sealing chamber 31 is in an independent sealing state.
The splitter plate comprises a plate body with the edge matched with the shape of the inner cavity of the gearbox half-shell 4 and a sealing piece fixed on the plate body. The bottom of the plate body is fixed with a baffle plate 38, and the bottom of the baffle plate 38 is connected with a telescopic cylinder 39. A guide rod 381 penetrating through the baffle plate 38 is fixed in the sealing chamber 31, and the guide rod 381 is in sliding fit with the baffle plate 38 to provide a guide for the separation plate to move in the through groove accurately.
The four telescopic cylinders 39 are capable of independently driving the corresponding partition plates to extend out of the through slots from the sealed chamber 31.
When the telescopic cylinder 39 pushes the partition plate upwards so that the partition plate abuts against the inner cavity of the gearbox half-shell 4, the sealing member can seal the gap between the through groove and the plate body and can seal the gap between the gearbox half-shell 4 and the plate body.
The four partition plates are a first partition plate 34, a second partition plate 35, a third partition plate 36, and a fourth partition plate 37, respectively. As shown in fig. 7 to 9, taking the second partition plate 35 as an example, the sealing members on the second partition plate 35 include a first sealing strip 351, a second sealing strip 352, and a third sealing strip 353. The first sealing strip 351, the second sealing strip 352 and the third sealing strip 353 are of an integrated structure, so that gaps can be avoided at contact positions among the first sealing strip 351, the second sealing strip 352 and the third sealing strip 353.
Specifically, the first sealing strip 351 is mounted on the edge where the plate body and the inner cavity of the half-shell 4 are matched, so that when the partition plate abuts against the inner cavity of the half-shell 4, the first sealing strip 351 can seal the contact part between the plate body and the inner cavity of the half-shell 4.
The second sealing strip 352 is installed on the matched part of the upper edge of the plate body and the through groove, the through groove is small and big at the bottom, and when the separation plate abuts against the inner cavity of the half-shell 4 of the gearbox, the second sealing strip 352 can seal the gap between the upper edge of the through groove and the plate body. As shown in fig. 8, the outer edge seal 321, the first seal 351, and the second seal 352 are engaged with each other, so that the gaps between the plate body and the through groove, the inner cavity of the half-case 4, and the plate body and the outer edge bonding portion 32 can be completely sealed. By arranging four partition plates, the inner cavity of the half-shell 4 of the gearbox can be divided into five independent sealing cavities.
The third sealing strip 353 is installed on the part of the matching lower edges of the plate body and the through groove, when the baffle 38 is lifted to a certain height by the telescopic cylinder 39, the baffle 38 can tightly prop the third sealing strip 353 on the gap between the lower edges of the plate body and the through groove, and the gap between the bottom of the through groove and the plate body is sealed.
It should be noted that the gearbox half-shell 4 often has a number of holes with different functions. In the case of the tightness test of the gearbox half-shell 4, all the holes need to be sealed in order to be able to carry out an accurate test.
The invention thus provides an auxiliary sealing mechanism for sealing holes outside the open peripheral contour of the bottom of the gearbox half-shell 4, after which the zonal sealing mechanism 3 can only function to divide the inner cavity of the gearbox half-shell 4 into a plurality of independent sealing cavities.
As shown in fig. 2 to 4, the auxiliary sealing mechanism comprises a fixed sealing plug and a movable sealing mechanism 5, wherein the movable sealing mechanism 5 comprises a first sealing plug 51 matched with the outer edge of the gear installation cavity 41 and a first movable rod 52, the first movable rod 52 is a lifting rod fixed on the frame 1, and the first movable rod 52 can drive the first sealing plug 51 to slide along the inner wall of the gear installation cavity 41, so that the sealing position of the first sealing plug 51 to the gear installation cavity 41 is changed.
The stationary sealing plug comprises a second sealing plug 55 cooperating with the bearing mounting cavity 42, a third sealing plug 53 cooperating with the exposed opening 43 in the gearbox half-shell 4 and a plurality of auxiliary sealing plugs. The second sealing plug 55 is connected with a second movable rod 56, the second movable rod 56 is also a lifting rod fixed on the frame 1, and the second movable rod 56 passes through the first movable rod 52 and is in sliding sealing with the first movable rod 52. The third sealing plug 53 is connected to a third movable rod 54 fixed to the housing 1. The third movable lever 54 can also be lifted and lowered. In this way, the gear installation cavity 41 can be independently sealed under the cooperation of the first sealing plug 51 and the second sealing plug 55, and the air tightness test can be performed on the gear installation cavity 41. The auxiliary sealing plug is used for sealing other open through holes such as a positioning hole, an oil duct and the like which are communicated with the inner cavity of the gearbox half shell 4.
The air pressure testing mechanism 6 is capable of delivering air to each individual seal chamber individually and testing the air pressure variation within the individual seal chamber. Specifically, the air pressure testing mechanism 6 includes an air pump, a barometer, and six air delivery pipes. The six air delivery pipes are respectively a first air delivery pipe 61, a second air delivery pipe 62, a third air delivery pipe 63, a fourth air delivery pipe 64, a fifth air delivery pipe 65 and a sixth air delivery pipe 66, wherein the first air delivery pipe 61, the second air delivery pipe 62, the third air delivery pipe 63, the fourth air delivery pipe 64 and the fifth air delivery pipe 65 are respectively communicated with five independent sealing cavities separated by a partition plate, and the sixth air delivery pipe 66 is communicated with the sealing cavities of the gear installation cavity 41 separated by the first sealing plug 51 and the second sealing plug 55.
When the first movable rod 52 drives the first sealing plug 51 to move in the gear installation cavity 41, the sealing range can be changed, and the air leakage area can be checked.
The air pump and barometer are conventional products and are not shown in the drawings. Each air pipe is respectively communicated with each independent sealing cavity isolated by the partition plate, air of the air pump can be injected into the independent sealing cavity through the air pipe, the air pressure in the independent sealing cavity is improved, then the air pump is closed for conveying, and pressure change on a barometer connected to the air pipe is observed. Because the air pipe is communicated with the independent sealing cavity, the air pressure in the air pipe is consistent with the air pressure in the independent sealing cavity.
After waiting for a period of time, if the barometer shows that the air pressure is continuously reduced, the air leakage phenomenon exists in the independent sealing cavity communicated with the corresponding air delivery pipe, and the air tightness is unqualified.
As shown in fig. 2, the positioning and clamping mechanism includes five positioning posts 33 fixed on the outer edge attaching portion 32 and a pressing rod 7 provided on the frame 1, the pressing rod 7 is a lifting rod, and the gearbox half-shell 4 can be pressed on the outer edge attaching portion 32 when the pressing rod 7 descends.
When in use, the utility model is characterized in that: the gearbox half shell 4 is placed on the top of the sealing chamber 31 on the lifting table 2, the gearbox shell is aligned with the positioning column 33, then the gearbox shell is fixed on the outer edge bonding part 32 by pressing down the pressing rod 7, and at the moment, the outer edge sealing strip 321 seals a gap between the gearbox shell and the outer edge bonding part 32. The remaining holes in the gearbox half-shell 4 are then closed using the auxiliary sealing plug, the first sealing plug 51, the second sealing plug 55 and the third sealing plug 53. Then, the telescopic cylinder 39 is used for driving the partition plate in the sealing chamber 31 to extend out of the through groove and dividing the inner cavity of the gearbox half-shell 4 into five independent sealing cavities, and the air pressure in the independent sealing cavities is tested by the air pressure testing mechanism 6 to check whether air leakage exists or not.
In order to avoid the situation that the first sealing strip 351 on the partition plate just blocks the air leakage crack on the gearbox half-shell 4, the air tightness test is inaccurate. Each partition plate may be sequentially retracted into the sealing chamber 31, and in this process, whether or not a phenomenon of air leakage occurs due to retraction of the partition plate is detected, thereby performing more accurate air tightness detection.
As a possible embodiment of the invention, the positioning and clamping mechanism may be a positioning groove which is provided on the outer edge fitting portion 32 and has the same contour as the open outer edge of the half-shell 4 of the transmission and a vice which is provided on top of the sealing chamber 31.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. Gearbox part gas tightness detects frock, its characterized in that includes:
the partition sealing mechanism (3), the partition sealing mechanism (3) comprises a sealing chamber (31), an outer edge fitting part (32) matched with the open outer edge contour of the gearbox half shell (4) is arranged at the top of the sealing chamber (31), an outer edge sealing strip (321) matched with the open outer edge contour is arranged on the outer edge fitting part (32), at least one partition plate is arranged on the outer edge fitting part (32) in the outer edge sealing strip (321) contour, and the partition plate can divide the inner cavity of the gearbox half shell (4) into at least two independent sealing cavities;
the air pressure testing mechanism (6) can independently convey air to each independent sealing cavity and test air pressure change in the independent sealing cavity;
the positioning and clamping mechanism can fix the gearbox half shell (4) on the outer edge attaching part (32);
the auxiliary sealing mechanism can seal holes outside the outline of the open outer edge of the gearbox half shell (4), at least one through groove communicated with the inner cavity of the sealing chamber (31) is formed in the outer edge attaching part (32), the partition plate is movably arranged on the through groove, the partition plate can seal the through groove, a telescopic cylinder (39) is arranged in the sealing chamber (31), and the telescopic cylinder (39) can drive the partition plate to extend out of the through groove from the sealing chamber (31).
2. A gearbox part air tightness detection tool as claimed in claim 1, wherein the separation plate comprises a plate body with edges matched with the inner cavity of the gearbox half shell (4) and a sealing piece arranged on the plate body, and when the telescopic cylinder (39) drives the separation plate to prop against the inner cavity of the gearbox half shell (4), the sealing piece can seal a gap between the through groove and the plate body and can seal a gap between the gearbox half shell (4) and the plate body.
3. A gearbox component air tightness detection tool as set forth in claim 2, wherein said seal comprises:
the first sealing strip (351) is arranged on the edge of the matching of the plate body and the inner cavity of the gearbox half shell (4);
the second sealing strip (352) is arranged on the matched part of the upper edges of the plate body and the through groove;
and the third sealing strip (353) is arranged on the matched part of the lower edges of the plate body and the through groove.
4. A gearbox part air tightness detection tool as claimed in claim 2, wherein a baffle (38) is fixed at the end of the plate body in the sealing chamber (31), and the baffle (38) can tightly support the third sealing strip (353) at the gap between the plate body and the lower edge of the through groove.
5. A gearbox part air tightness detection tool as claimed in claim 1, wherein the air pressure testing mechanism (6) comprises an air pump, an air pressure gauge and at least two air delivery pipes, each air delivery pipe is respectively communicated with each independent sealing cavity, air of the air pump can be injected into the independent sealing cavity through the air delivery pipe, and the air pressure gauge can measure air pressure of the air delivery pipe communicated with the independent sealing cavity.
6. A gearbox part tightness detection tool as claimed in claim 1, wherein the auxiliary sealing mechanism comprises a fixed sealing plug and a movable sealing mechanism (5), the movable sealing mechanism (5) comprises a first sealing plug (51) and a first movable rod (52) which are matched with the outer edge of the gear mounting cavity (41), and the first movable rod (52) can drive the first sealing plug (51) to slide along the inner wall of the gear mounting cavity (41); the fixed sealing plug comprises a second sealing plug (55) matched with the bearing mounting cavity (42) and a third sealing plug (53) matched with an exposed opening (43) on the gearbox half-shell (4), and a gas transmission pipe of the gas pressure testing mechanism (6) is communicated with a cavity between the first sealing plug (51) and the second sealing plug (55).
7. A gearbox part air tightness detection tool as in claim 1, wherein the positioning and clamping mechanism comprises a plurality of positioning posts (33) fixed on the outer edge fitting part (32) and a pressing rod (7) arranged on the frame (1), wherein the pressing rod (7) can press the gearbox half shell (4) on the outer edge fitting part (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310758119.4A CN116609006B (en) | 2023-06-26 | 2023-06-26 | Gearbox part gas tightness detects frock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310758119.4A CN116609006B (en) | 2023-06-26 | 2023-06-26 | Gearbox part gas tightness detects frock |
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| CN116609006A CN116609006A (en) | 2023-08-18 |
| CN116609006B true CN116609006B (en) | 2023-11-07 |
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| WO2021232465A1 (en) * | 2020-05-18 | 2021-11-25 | 广州阿普顿自动化系统有限公司 | Air tightness testing device and testing manner thereof |
| CN216309358U (en) * | 2021-12-15 | 2022-04-15 | 保定新金凯专用设备制造有限公司 | Lead accumulator gas tightness check out test set |
| CN114593878A (en) * | 2022-03-10 | 2022-06-07 | 博众精工科技股份有限公司 | Air tightness testing device |
-
2023
- 2023-06-26 CN CN202310758119.4A patent/CN116609006B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043691A (en) * | 2015-09-07 | 2015-11-11 | 安徽江淮汽车股份有限公司 | Automatic gearbox shell oil duct air tightness detection tool |
| CN209181972U (en) * | 2018-12-18 | 2019-07-30 | 京信通信系统（中国）有限公司 | The air tightness detection system and detecting tool of RCU |
| WO2021232465A1 (en) * | 2020-05-18 | 2021-11-25 | 广州阿普顿自动化系统有限公司 | Air tightness testing device and testing manner thereof |
| CN214373199U (en) * | 2021-03-04 | 2021-10-08 | 重庆坤恩机电技术有限公司 | Air tightness detection device and air tightness detection system of gearbox body |
| CN216309358U (en) * | 2021-12-15 | 2022-04-15 | 保定新金凯专用设备制造有限公司 | Lead accumulator gas tightness check out test set |
| CN114593878A (en) * | 2022-03-10 | 2022-06-07 | 博众精工科技股份有限公司 | Air tightness testing device |
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| CN116609006A (en) | 2023-08-18 |
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