CN211121825U - Nodular cast iron pipe fitting gas tightness testing machine - Google Patents
Nodular cast iron pipe fitting gas tightness testing machine Download PDFInfo
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- CN211121825U CN211121825U CN202020149842.4U CN202020149842U CN211121825U CN 211121825 U CN211121825 U CN 211121825U CN 202020149842 U CN202020149842 U CN 202020149842U CN 211121825 U CN211121825 U CN 211121825U
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Abstract
The utility model relates to the technical field of pipe fitting air tightness detection devices, and discloses a nodular cast iron pipe fitting air tightness detection testing machine, which comprises a portal frame, a top driving device, a side driving device and a workbench; the portal frame comprises two vertical columns which are perpendicular to the ground and arranged on two sides and a cross beam which is connected with the vertical columns on the two sides, and each vertical column is fixed on the ground through a bolt. The top driving device is arranged in the middle of the cross beam, the driving end of the top driving device faces the workbench, and the upright posts are respectively provided with a side driving device; the driving ends of the side driving device and the top driving device are both connected with a bellmouth sealing disc; the bellmouth sealing disc is connected with a compressed air pipe. The utility model seals the outlet of the pipe fitting through the socket sealing disc, injects compressed air into the pipe fitting, and sprays soap liquid on the outer surface of the pipe fitting to detect the air tightness of the pipe fitting, thereby reducing the workload and greatly improving the detection efficiency of the pipe fitting; the adopted water resource is less, the water resource is saved, and the environment is protected.
Description
Technical Field
The utility model relates to a pipe fitting gas tightness detection device technical field, concretely relates to nodular cast iron pipe fitting gas tightness testing machine.
Background
In order to ensure the quality and the mechanical property of the nodular cast iron pipe, GB1325-2013 stipulates that the nodular cast iron must be subjected to a hydrostatic test according to a stipulated pressure. At present, during a pipe fitting test in the market, a sealing gasket or a sealing ring is usually adopted to be arranged outside each outlet of the pipe fitting, the outlet of the pipe fitting is clamped by a force application device such as a jack and the like, the sealing gasket or the sealing ring is sealed with a key end part, the whole sealed key is invaded into edema, and then compressed gas is introduced into the pipe fitting to test the sealing performance of the pipe fitting.
In such a mode, the operation process is complicated, the rack is heavy in weight, the rack needs to be immersed into water by means of external equipment, and the working efficiency is low; the jack applies force to the pipe fitting, and the pressure plate and the pipe fitting are not sealed firmly in the moving process, so that the accuracy of the test is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide an energy-concerving and environment-protective, nodular cast iron pipe fitting gas tightness testing machine that work efficiency is high.
The utility model provides a technical scheme that its technical problem adopted is: a testing machine for detecting the air tightness of a ductile cast iron pipe fitting comprises a portal frame, a top driving device, a side driving device and a workbench; the portal frame comprises two upright columns which are arranged on two sides perpendicular to the ground and a cross beam which is connected with the upright columns on the two sides, the top driving device is arranged in the middle of the cross beam, the driving end of the top driving device faces the workbench, the upright columns are respectively provided with the side driving devices, and the driving ends of the two side driving devices are arranged oppositely; the driving ends of the side driving device and the top driving device are both connected with a socket sealing disc.
Further, the method comprises the following steps: and the two ends of the cross beam are respectively provided with a lifting driving device, and the driving end of the lifting driving device is connected with a side driving device.
Further, the method comprises the following steps: and guide rails for guiding the lifting driving device are respectively arranged on the upright posts.
Further, the method comprises the following steps: the lifting driving device is a hydraulic oil cylinder.
Further, the method comprises the following steps: the top driving device and the side driving device are hydraulic oil cylinders.
Further, the method comprises the following steps: the workbench comprises a bedplate for placing the pipe fitting to be detected, parallel guide rails arranged on the ground, a plurality of guide wheels fixed below the bedplate and a positioning assembly for fixing the workbench.
Further, the method comprises the following steps: the hydraulic power station is characterized by further comprising a hydraulic station, a motor and a control cabinet, wherein the control cabinet is electrically connected with the hydraulic station, the motor, the top driving device and the side driving device respectively.
Further, the method comprises the following steps: the device also comprises an atomization spray gun, and the atomization spray gun is used for spraying soap liquid on the surface of the pipe fitting to be detected and detecting whether the pipe fitting is qualified or not.
The utility model has the advantages that: the utility model seals the outlet of the pipe fitting through the socket sealing disc, injects compressed air into the pipe fitting, and sprays soap liquid on the outer surface of the pipe fitting to detect the air tightness of the pipe fitting, thereby reducing the workload and greatly improving the detection efficiency of the pipe fitting; the adopted water resource is less, the water resource is saved, and the environment is protected.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a side view of the embodiment of the present invention shown in fig. 1;
labeled as: 11. a cross beam; 12. a column; 20. a work table; 21. a guide wheel; 22. a guide rail; 23. a positioning assembly; 24. a platen; 30. a top drive; 31. a side drive device; 311. a guide rail; 32. a lift drive; 40. A bellmouth sealing disc; 41. a compressed air pipe; 50. an electric motor.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1 and fig. 2, the ductile cast iron pipe fitting airtightness testing machine according to the embodiment of the present invention includes a portal frame, a top driving device 30, a side driving device 31, and a workbench 20; the portal frame comprises two vertical columns 12 perpendicular to the ground and arranged on two sides and a cross beam 11 connected with the vertical columns 12 on the two sides, wherein each vertical column 12 is fixed on the ground through a bolt, and the vertical columns 12 and the cross beam 11 are also fixed through bolts. The top driving device 30 is arranged in the middle of the cross beam 11, the driving end of the top driving device 30 faces the workbench 20, the side driving devices 31 are respectively arranged on the upright posts 12, and the driving ends of the two side driving devices 31 are oppositely arranged; the driving ends of the side driving device 31 and the top driving device 30 are both connected with a socket sealing disc 40; a compressed air pipe 41 is connected to the bellmouth seal disk 40. The device further comprises a hydraulic station, a motor 50 and a control cabinet, wherein the control cabinet is electrically connected with the hydraulic station, the motor 50, the top driving device 30 and the side driving device 31 respectively.
In use, the top drive 30 and the side drives 31 in this embodiment are hydraulic rams; place the pipe fitting that waits to detect on workstation 20 earlier, press the control button in the switch board, drive hydraulic pressure station to each hydraulic cylinder fuel feeding for bellmouth sealed dish 40 that the hydraulic cylinder drive end is connected seals the mouth of pipe fitting, needs place polyurethane cowhells cushion at the pipe fitting mouth of pipe in advance, in order to guarantee sealed effect. The compressed air pipe 41 on the bellmouth sealing disc 40 injects compressed air with pressure greater than 6MPa into the pipe fitting, and simultaneously sprays soap liquid on the surface of the pipe fitting to be detected through the atomizing spray gun to detect whether the pipe fitting is qualified; the time is about 50S-5min, whether the pipe fitting leaks or not is visually observed through soap liquid sprayed on the surface of the pipe fitting, and if the pipe fitting leaks, a leakage part is marked; after the error leakage is observed visually, the air escape valve is opened through an air exhaust button in the control cabinet, and the compressed air in the pipe fitting is exhausted; then each hydraulic oil cylinder resets, and the pipe fitting is placed in the qualified product area or the unqualified product area. The mode of injecting compressed gas into the pipe fitting and spraying liquid on the surface is adopted, so that the operation is convenient and rapid, and the labor intensity is low; and a large water tank is not needed, so that water resources are saved, and the energy-saving and environment-friendly effects are achieved.
On the basis, in order to make the testing machine adapt to the air tightness tests of pipes with a plurality of specifications, as shown in fig. 1 and fig. 2, the two ends of the cross beam 11 are respectively provided with a lifting driving device 32, and the driving end of the lifting driving device 32 is connected with a side driving device 31; guide rails 311 for guiding the lifting drive device 32 are respectively arranged on the upright posts 12. In the present embodiment, the lifting drive device 32 is a hydraulic cylinder, and a guide rail 311 for guiding is welded to the column 12 in order to prevent the side drive device 31 from keeping a predetermined rail movement during the lifting or lowering.
On the basis of the above, as shown in fig. 1, the workbench 20 includes a bedplate 24 for placing the pipe to be detected, parallel guide rails 22 installed on the ground, a plurality of guide wheels 21 fixed below the bedplate 24, and a positioning assembly 23 for fixing the workbench 20. In order to place a large pipe on the workbench 20 conveniently, four guide wheels 21 are arranged below the bedplate 24 and are matched with two guide rails 22 arranged in parallel for use, so that the bedplate 24 can move; in order to fix the platen 24, a positioning assembly 23 is also provided to fix the platen 24.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a nodular cast iron pipe fitting gas tightness testing machine which characterized in that: comprises a portal frame, a top driving device, a side driving device and a workbench; the portal frame comprises two upright columns which are arranged on two sides perpendicular to the ground and a cross beam which is connected with the upright columns on the two sides, the top driving device is arranged in the middle of the cross beam, the driving end of the top driving device faces the workbench, the upright columns are respectively provided with the side driving devices, and the driving ends of the two side driving devices are arranged oppositely; the driving ends of the side driving device and the top driving device are both connected with a socket sealing disc.
2. The ductile iron pipe fitting airtightness testing machine according to claim 1, characterized in that: and the two ends of the cross beam are respectively provided with a lifting driving device, and the driving end of the lifting driving device is connected with a side driving device.
3. The ductile iron pipe fitting airtightness testing machine according to claim 2, characterized in that: and guide rails for guiding the lifting driving device are respectively arranged on the upright posts.
4. The ductile iron pipe fitting airtightness testing machine according to claim 2, characterized in that: the lifting driving device is a hydraulic oil cylinder.
5. The ductile iron pipe fitting airtightness testing machine according to claim 1, characterized in that: the top driving device and the side driving device are hydraulic oil cylinders.
6. The ductile iron pipe fitting airtightness testing machine according to claim 1, characterized in that: the workbench comprises a bedplate for placing the pipe fitting to be detected, parallel guide rails arranged on the ground, a plurality of guide wheels fixed below the bedplate and a positioning assembly for fixing the workbench.
7. The ductile iron pipe fitting airtightness testing machine according to claim 1, characterized in that: the hydraulic power station is characterized by further comprising a hydraulic station, a motor and a control cabinet, wherein the control cabinet is electrically connected with the hydraulic station, the motor, the top driving device and the side driving device respectively.
8. The ductile iron pipe fitting airtightness testing machine according to claim 1, characterized in that: the device also comprises an atomization spray gun, and the atomization spray gun is used for spraying soap liquid on the surface of the pipe fitting to be detected and detecting whether the pipe fitting is qualified or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020149842.4U CN211121825U (en) | 2020-01-24 | 2020-01-24 | Nodular cast iron pipe fitting gas tightness testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020149842.4U CN211121825U (en) | 2020-01-24 | 2020-01-24 | Nodular cast iron pipe fitting gas tightness testing machine |
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| Publication Number | Publication Date |
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| CN211121825U true CN211121825U (en) | 2020-07-28 |
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| CN202020149842.4U Active CN211121825U (en) | 2020-01-24 | 2020-01-24 | Nodular cast iron pipe fitting gas tightness testing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018487A (en) * | 2021-10-29 | 2022-02-08 | 上海振华重工(集团)股份有限公司南通分公司 | Improved tire crane portal frame air tightness test method |
-
2020
- 2020-01-24 CN CN202020149842.4U patent/CN211121825U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018487A (en) * | 2021-10-29 | 2022-02-08 | 上海振华重工(集团)股份有限公司南通分公司 | Improved tire crane portal frame air tightness test method |
| CN114018487B (en) * | 2021-10-29 | 2024-04-16 | 上海振华重工(集团)股份有限公司南通分公司 | Improved air tightness test method for portal frame of tire crane |
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