CN220583962U - Water pressure test fixture - Google Patents
Water pressure test fixture Download PDFInfo
- Publication number
- CN220583962U CN220583962U CN202322168393.4U CN202322168393U CN220583962U CN 220583962 U CN220583962 U CN 220583962U CN 202322168393 U CN202322168393 U CN 202322168393U CN 220583962 U CN220583962 U CN 220583962U
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- combustion chamber
- shell
- chamber shell
- water inlet
- core rod
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 238000002485 combustion reaction Methods 0.000 claims abstract description 104
- 210000004907 gland Anatomy 0.000 claims abstract description 58
- 239000007921 spray Substances 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 52
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model discloses a hydraulic pressure testing tool, in particular to the technical field of hydraulic pressure testing, which comprises a combustion chamber shell and a spray pipe shell, wherein one end of the spray pipe shell extends into the combustion chamber shell, a water inlet core rod penetrates through the combustion chamber shell and the spray pipe shell, an end face gland is inserted into one end of the combustion chamber shell far away from the spray pipe shell, the other end of the water inlet core rod penetrates through the combustion chamber shell and is inserted into one end of the end face gland close to the combustion chamber shell, a tensioning screw is arranged at one end of the end face gland far away from the combustion chamber shell, an O-shaped sealing ring II is arranged between one end of the combustion chamber shell close to the end face gland and one end of the combustion chamber shell far away from the spray pipe shell, and an O-shaped sealing ring I is arranged between one end of the end face gland far away from the combustion chamber shell and one end of the tensioning screw close to the end face gland. The utility model has the advantages of mature design, stable positioning, high precision, good reliability, firm clamping, good tightness and small clamping deformation for workpieces.
Description
Technical Field
The utility model relates to the technical field of water pressure testing, in particular to a water pressure testing tool.
Background
The engine comprises a medicine tool, a combustion chamber shell, a spray pipe shell, an ignition combustion chamber, a spray pipe and a hydraulic pressure testing tool device, and has very high design strength and tightness requirements as a whole, wherein the combustion chamber shell and the inner cavity of the spray pipe shell are complex in shape, thin in wall thickness, large in deformation, high in dimensional accuracy and mutual position degree requirements, are key parts for bearing the pressure of the combustion chamber, and have the technical requirements of controlling the deformation within 0.05mm and simultaneously having leakage or not when the design requirements are under specific pressure. In order to prove that the structural strength and the tightness meet the technical requirements, a hydraulic pressure test is required.
The original designed hydraulic pressure test fixture is shown in the attached figures 1 and 2 of the specification, and the combustion chamber shell and the spray pipe shell are respectively provided with the hydraulic pressure test fixture for hydraulic pressure test. The device has the advantages of no need of complex tooling, simple structure and high efficiency.
After the tool design is finished, the fact that the test result cannot reflect the actual working condition of the combustion chamber in the working state is found, the relative tightness requirement of the combustion chamber shell and the spray pipe shell cannot be met, meanwhile, in the hydraulic test, the leakage phenomenon exists, the design technical requirement cannot be met, the defects are too many, and finally, the hydraulic test scheme is abandoned.
Through further research, a novel water pressure test fixture is designed according to the integral part of the assembled combustion chamber shell and the assembled spray pipe shell.
Disclosure of Invention
In order to overcome the defects in the prior art, the hydraulic pressure testing tool is mature in design, stable in positioning, high in accuracy, good in reliability, firm in clamping, good in sealing performance and small in clamping deformation of workpieces.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the hydraulic pressure testing tool comprises a combustion chamber shell and a spray pipe shell, wherein one end of the spray pipe shell extends into the combustion chamber shell, and a water inlet core rod is arranged between the combustion chamber shell and the spray pipe shell in a penetrating manner;
the outer side of one end of the water inlet core rod is provided with a first step positioning cylinder, the first step positioning cylinder is arranged in an opening of one end of the spray pipe shell far away from the combustion chamber shell, and the first step positioning cylinder is matched with the opening of one end of the spray pipe shell far away from the combustion chamber shell and used for positioning the water inlet core rod and the spray pipe shell and preventing the water inlet core rod from deviating to cause water pressure leakage;
the end, far away from the spray pipe shell, of the combustion chamber shell is inserted with an end face gland, the other end of the water inlet core rod penetrates through the combustion chamber shell and is inserted into the end face gland, close to the combustion chamber shell, of the end face gland, one end, far away from the combustion chamber shell, of the end face gland is provided with a tensioning screw, and the tensioning screw penetrates through the end face gland and extends into the water inlet core rod to fix the end face gland, the combustion chamber shell and the water inlet core rod;
the O-shaped sealing ring II is arranged between one end, close to the end face gland, of the combustion chamber shell and one end, far away from the spray pipe shell, of the combustion chamber shell, leakage between the combustion chamber shell and the end face gland is avoided, and the O-shaped sealing ring I is arranged between one end, far away from the combustion chamber shell, of the end face gland and one end, close to the end face gland, of the tensioning screw, and leakage at the thread of the tensioning screw is avoided.
Preferably, the other end of the water inlet core rod is provided with a threaded hole, and the tensioning screw extends into the threaded hole and is in threaded connection with the threaded hole.
Preferably, the jack is offered to the one end that the terminal surface gland is close to the core bar that intakes, the fixed second step positioning cylinder that is equipped with of core bar other end that intakes, and second step positioning cylinder peg graft in the jack for to intaking core bar and terminal surface gland location, prevent that the core bar that intakes from taking place the skew and causing the water pressure to reveal.
Preferably, a second sealing groove is formed in one end, close to the end face gland, of the combustion chamber shell, a second O-shaped sealing ring is arranged in the second sealing groove, a first sealing groove is formed in one end, far away from the combustion chamber shell, of the end face gland, and the first O-shaped sealing ring is arranged in the first sealing groove.
Preferably, a water inlet hole is formed in one end of the water inlet core rod, a plurality of water inlet transverse holes are formed in the outer side of one end of the water inlet core rod, and a plurality of water outlet transverse holes are formed in the outer side of the other end of the water inlet core rod and used for improving water inlet and water outlet efficiency.
Preferably, an end face silica gel sealing gasket is arranged between one end of the water inlet core rod and one end of the spray pipe shell, which is far away from the combustion chamber shell, and is used for ensuring that no leakage exists between the water inlet core rod and the spray pipe shell.
Preferably, three pairs of O-shaped sealing rings are arranged between the combustion chamber shell and the spray pipe shell to seal the combustion chamber shell and the spray pipe shell, an annular pressing block is fixedly arranged in the combustion chamber shell through screws, and the annular pressing block is arranged on the outer side of the spray pipe shell and used for fixing the spray pipe shell.
The utility model has the technical effects and advantages that:
1. the end face gland, the combustion chamber shell and the water inlet core bar are fixed by the tensioning screw, and the first O-shaped sealing ring and the second O-shaped sealing ring are extruded by the inner side face of the tensioning screw, so that a good sealing effect is achieved;
2. the first sealing groove is arranged on one side of the end face gland, which is far away from the combustion chamber shell, and the O-shaped sealing ring I is arranged, so that the end face seal replaces the traditional shaft face seal, and the leakage of the thread of the tensioning screw is avoided;
3. the second sealing groove is formed in the combustion chamber shell, and the second O-shaped sealing ring is arranged, so that the side, close to the combustion chamber shell, of the end face gland is sealed by the second sealing groove on the combustion chamber shell, and leakage is avoided between the combustion chamber shell and the end face gland;
4. the step positioning cylinders are arranged at the two ends of the water inlet core rod to position the water inlet core rod, so that water pressure leakage caused by water inlet core rod deviation is prevented;
5. through arranging a plurality of water inlet transverse holes and water outlet transverse holes at two ends of the water inlet core rod respectively, water inlet and water outlet efficiency is improved, and efficient performance of test operation is ensured;
6. the tool disclosed by the utility model is mature in design, stable in positioning, high in precision, good in reliability, firm in clamping, good in tightness and small in clamping deformation of a workpiece.
Drawings
FIG. 1 is a diagram of a prior art original hydraulic test of a combustor casing;
FIG. 2 is a diagram of a prior art original hydraulic test configuration of a nozzle housing;
FIG. 3 is an overall block diagram of the present utility model;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is an enlarged view of portion B of FIG. 3;
FIG. 6 is a block diagram of a water inlet core rod according to the present utility model;
fig. 7 is a structural view of an end face gland according to the present utility model.
The reference numerals are: 1. a combustion chamber housing; 2. a nozzle housing; 3. a water inlet core rod; 4. end face gland; 5. tightening the screw; 6. o-shaped sealing rings I; 7. o-shaped sealing rings II; 8. an annular pressing block; 9. a screw; 10. an O-shaped sealing ring III; 11. an end face silica gel sealing pad; 12 a second seal groove;
31. a threaded hole; 32. a water inlet hole; 33. a first step positioning cylinder; 34. a water inlet transverse hole; 35 water outlet transverse holes; 36. a second step positioning cylinder;
41. a jack; 42. a first seal groove;
13. a pull rod; 14. a left pad; 15. a right pad; 16. a water inlet; 17 exhaust ports.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in FIG. 1, the original water pressure test structure of the combustion chamber shell 1 is that a left pad 14 and a right pad 15 are respectively arranged on the left side and the right side of the combustion chamber shell 1, a water inlet 16 and an air outlet 17 which are distributed up and down are arranged on the left pad 14, and then a pull rod 13 penetrates through the left pad 14, the combustion chamber shell 1 and the right pad 15 to be fixed;
as shown in fig. 2, the original water pressure test structure of the nozzle housing 2 is that a left pad 14 and a right pad 15 are respectively placed on the left side and the right side of the nozzle housing 2, and then a pull rod 13 penetrates through the left pad 14, the nozzle housing 2 and the right pad 15 to be fixed;
the hydraulic pressure tool is designed for the combustion chamber shell 1 and the spray pipe shell 2 respectively for hydraulic pressure test, so that the hydraulic pressure test device has the advantages of no need of designing complex tools, simple structure and high efficiency, but the test result cannot reflect the actual working condition of the combustion chamber in the working state, the relative tightness requirements of the combustion chamber shell 1 and the spray pipe shell 2 cannot be displayed, and meanwhile, in the hydraulic pressure test, the leakage phenomenon exists, and the design technical requirements cannot be met.
Therefore, as shown in fig. 3-7, the utility model provides a hydraulic pressure testing tool, which comprises a combustion chamber shell 1 and a spray pipe shell 2, wherein one end of the spray pipe shell 2 extends into the combustion chamber shell 1, an O-shaped sealing ring III 10 is arranged between the combustion chamber shell 1 and the spray pipe shell 2 to seal the combustion chamber shell 1 and the spray pipe shell 2, an annular pressing block 8 is fixedly arranged in the combustion chamber shell 1 through a screw 9, and the annular pressing block 8 is arranged outside the spray pipe shell 2 and is used for fixing the spray pipe shell 2 so as to realize the assembly of the combustion chamber shell 1 and the spray pipe shell 2.
Then run through and be equipped with a core bar 3 that intakes between combustion chamber casing 1 and spray tube casing 2, core bar 3 that intakes is ground with high-quality steel and forms, and each excircle coaxial precision reaches below 0.01, prevents to draw and cause revealing when off tracking, core bar 3 one end outside of intaking is equipped with first step positioning cylinder 33, first step positioning cylinder 33 establishes in the one end opening that combustion chamber casing 1 was kept away from to spray tube casing 2, and first step positioning cylinder 33 and spray tube casing 2 keep away from the one end opening looks adaptation of combustion chamber casing 1, and is equipped with terminal surface silica gel sealing gasket 11 between core bar 3 one end of intaking and spray tube casing 2 and keep away from the one end of combustion chamber casing 1, has guaranteed the positioning requirement of spray tube casing 2 and core bar 3 that intakes, prevents that core bar 3 of intaking from causing the water pressure to reveal.
The one end that spray tube casing 2 was kept away from to combustion chamber casing 1 is pegged graft has terminal surface gland 4, the combustion chamber casing 1 is run through to the core 3 other end and is inserted terminal surface gland 4 and be close to the one end inside of combustion chamber casing 1, specifically, has seted up jack 41 in terminal surface gland 4 and is close to the one end of core 3 that intakes, the core 3 other end of intaking is fixed to be equipped with second step location cylinder 36, and second step location cylinder 36 peg graft in jack 41 for advance core 3 and terminal surface gland 4 and fix a position, prevent that core 3 takes place the skew and cause the water pressure to reveal, combustion chamber casing 1 adopts little clearance sliding fit with core 3 that intakes simultaneously, has guaranteed the positioning accuracy requirement of combustion chamber casing 1.
The end face gland 4 is equipped with the set screw 5 far away from the one end of combustion chamber casing 1, set screw 5 runs through end face gland 4 and extends into inside core bar 3, specifically, has seted up screw hole 31 at the core bar 3 other end, set screw 5 extends into screw hole 31 inside and passes through threaded connection with screw hole 31 for it is fixed to end face gland 4, combustion chamber casing 1 and core bar 3.
Next, be equipped with O type sealing washer two 7 between the one end that end face gland 4 is close to combustion chamber housing 1 and the one end that combustion chamber housing 1 kept away from spray tube casing 2, specifically, seted up second seal groove 12 at the one end that combustion chamber housing 1 is close to end face gland 4, O type sealing washer two 7 locate in second seal groove 12, guarantee not reveal between combustion chamber housing 1 and the end face gland 4, end face gland 4 is kept away from between the one end that combustion chamber housing 1 and tensioning screw 5 are close to end face gland 4 is equipped with O type sealing washer one 6, specifically, has seted up first seal groove 42 at the one end that end face gland 4 is kept away from combustion chamber housing 1, O type sealing washer one 6 locates in the first seal groove 42, guarantees that tensioning screw 5 department is not revealed.
After the assembly of the combustion chamber shell 1 and the spray pipe shell 2 is completed, the water inlet core rod 3 is inserted from one end, far away from the combustion chamber shell 1, of the spray pipe shell 2, then the water inlet core rod 3 is assembled with the end face gland 4, and finally the end face gland 4, the combustion chamber shell 1 and the water inlet core rod 3 are fixed by tightening the tightening screw 5.
According to the utility model, the end face gland 4, the combustion chamber shell 1 and the water inlet core rod 3 are fixed by the tension screw 5, the first O-shaped sealing ring 6 and the second O-shaped sealing ring 7 are extruded by the inner side face of the tension screw 5, so that a good sealing effect is achieved, the first sealing groove 42 is arranged on one side of the end face gland 4 far away from the combustion chamber shell 1, the first O-shaped sealing ring 6 is installed, the traditional shaft face sealing is replaced by the end face sealing, the leakage of the thread of the tension screw 5 is avoided, meanwhile, the second sealing groove 12 is arranged on the combustion chamber shell 1, the second O-shaped sealing ring 7 is installed, the side of the end face gland 4 close to the combustion chamber shell 1 is sealed by the second sealing groove 12 on the combustion chamber shell 1, the leakage between the combustion chamber shell 1 and the end face gland 4 is guaranteed, and the sealing performance is good.
The water inlet hole 32 has been seted up to water inlet core bar 3 one end, and a plurality of water inlet cross holes 34 have been seted up in water inlet core bar 3 one end outside, a plurality of water outlet cross holes 35 have been seted up in water inlet core bar 3 other end outside, improve water inlet and water outlet efficiency, guarantee the quick progress of test operation.
The tool disclosed by the utility model is mature in design, reliable in positioning, firm in clamping, good in tightness, small in workpiece clamping deformation and quite remarkable in economic benefit.
Finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. The utility model provides a water pressure test fixture, includes combustion chamber casing (1) and spray tube casing (2), spray tube casing (2) one end extends into inside combustion chamber casing (1), its characterized in that: a water inlet core rod (3) is arranged between the combustion chamber shell (1) and the spray pipe shell (2) in a penetrating way;
the water inlet core rod (3) is provided with a first step positioning cylinder (33) at the outer side of one end, the first step positioning cylinder (33) is arranged in an opening at one end of the spray pipe shell (2) far away from the combustion chamber shell (1), and the first step positioning cylinder (33) is matched with the opening at one end of the spray pipe shell (2) far away from the combustion chamber shell (1) and is used for positioning the water inlet core rod (3) and the spray pipe shell (2) so as to prevent water pressure leakage caused by deviation of the water inlet core rod (3);
the end, far away from the spray pipe shell (2), of the combustion chamber shell (1) is inserted with an end face gland (4), the other end of the water inlet core rod (3) penetrates through the combustion chamber shell (1) and is inserted into one end, close to the combustion chamber shell (1), of the end face gland (4), one end, far away from the combustion chamber shell (1), of the end face gland (4) is provided with a tensioning screw (5), and the tensioning screw (5) penetrates through the end face gland (4) and extends into the water inlet core rod (3) to fix the end face gland (4), the combustion chamber shell (1) and the water inlet core rod (3);
the combustion chamber shell (1) is close to one end of the end face gland (4) and one end, far away from the spray pipe shell (2), of the combustion chamber shell (1) and is provided with an O-shaped sealing ring II (7), leakage between the combustion chamber shell (1) and the end face gland (4) is avoided, and O-shaped sealing rings I (6) are arranged between one end, far away from the combustion chamber shell (1), of the end face gland (4) and one end, close to the end face gland (4), of the tensioning screw (5) and are used for guaranteeing that the thread of the tensioning screw (5) is not leaked.
2. The hydraulic pressure test fixture of claim 1, wherein: the other end of the water inlet core rod (3) is provided with a threaded hole (31), and the tensioning screw (5) extends into the threaded hole (31) and is connected with the threaded hole (31) through threads.
3. The hydraulic pressure test fixture of claim 1, wherein: the end face gland (4) is close to one end of the water inlet core rod (3) and is provided with a jack (41), the other end of the water inlet core rod (3) is fixedly provided with a second step positioning cylinder (36), and the second step positioning cylinder (36) is inserted into the jack (41) and used for positioning the water inlet core rod (3) and the end face gland (4) and preventing water pressure leakage caused by deviation of the water inlet core rod (3).
4. The hydraulic pressure test fixture of claim 1, wherein: the combustion chamber is characterized in that a second sealing groove (12) is formed in one end, close to the end face gland (4), of the combustion chamber shell (1), the second O-shaped sealing ring (7) is arranged in the second sealing groove (12), a first sealing groove (42) is formed in one end, far away from the combustion chamber shell (1), of the end face gland (4), and the first O-shaped sealing ring (6) is arranged in the first sealing groove (42).
5. The hydraulic pressure test fixture of claim 1, wherein: the water inlet core rod (3) one end has seted up inlet opening (32), and a plurality of inlet cross holes (34) have been seted up in inlet core rod (3) one end outside, a plurality of outlet cross holes (35) have been seted up in inlet core rod (3) other end outside for improve inlet and play water efficiency.
6. The hydraulic pressure test fixture of claim 1, wherein: an end face silica gel sealing gasket (11) is arranged between one end of the water inlet core rod (3) and one end, far away from the combustion chamber shell (1), of the spray pipe shell (2) and is used for guaranteeing that leakage does not occur between the water inlet core rod (3) and the spray pipe shell (2).
7. The hydraulic pressure test fixture of claim 1, wherein: the novel burner is characterized in that an O-shaped sealing ring III (10) is arranged between the combustion chamber shell (1) and the nozzle shell (2) to seal the combustion chamber shell (1) and the nozzle shell (2), an annular pressing block (8) is fixedly arranged inside the combustion chamber shell (1) through a screw (9), and the annular pressing block (8) is arranged on the outer side of the nozzle shell (2) and used for fixing the nozzle shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322168393.4U CN220583962U (en) | 2023-08-14 | 2023-08-14 | Water pressure test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322168393.4U CN220583962U (en) | 2023-08-14 | 2023-08-14 | Water pressure test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220583962U true CN220583962U (en) | 2024-03-12 |
Family
ID=90121083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322168393.4U Active CN220583962U (en) | 2023-08-14 | 2023-08-14 | Water pressure test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220583962U (en) |
-
2023
- 2023-08-14 CN CN202322168393.4U patent/CN220583962U/en active Active
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