CN107192504B - Hydraulic test tool for testing pressure bearing capacity and air tightness of engine body part - Google Patents
Hydraulic test tool for testing pressure bearing capacity and air tightness of engine body part Download PDFInfo
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- CN107192504B CN107192504B CN201710504555.3A CN201710504555A CN107192504B CN 107192504 B CN107192504 B CN 107192504B CN 201710504555 A CN201710504555 A CN 201710504555A CN 107192504 B CN107192504 B CN 107192504B
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- 238000012360 testing method Methods 0.000 title claims abstract description 75
- 238000007789 sealing Methods 0.000 claims abstract description 99
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 32
- 238000002347 injection Methods 0.000 claims abstract description 7
- 239000007924 injection Substances 0.000 claims abstract description 7
- 238000007689 inspection Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims 4
- 239000003921 oil Substances 0.000 abstract description 53
- 239000010687 lubricating oil Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model provides a hydrostatic test frock for inspection of organism part bearing capacity and gas tightness, install in the organism part with the cylinder bore sealing device of both ends sealed about the cylinder bore in the organism part, and be equipped with a plurality ofly on the organism part lateral wall and correspond with water cavity mouth and gas cavity hole position and with the flange sealing device of water cavity mouth and gas cavity hole sealing, be equipped with oilhole sealing device and oilhole sealing device on the organism part with the organism part both sides wall with about oilhole on the terminal surface oilhole and the inside opening grade oilhole of organism part sealed, the gassing device passes through the inspection of water injection, pressurization, pressurize after being connected with water examination quick change unit with the cylinder bore intercommunication and accomplish organism part bearing capacity and gas tightness. The hydraulic test tool can ensure the test of the bearing capacity and the air tightness of the water cavity, the lubricating oil cavity and each oil duct of the machine body part, has good sealing performance, high safety and convenient assembly and disassembly when performing the hydraulic test, improves the quality and the efficiency of the hydraulic test of the machine body part, has wide application range and is convenient to popularize and apply.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a hydrostatic test tool for testing the bearing capacity and air tightness of a machine body part.
Background
The machine body part is one type of machine processing type parts, part of the machine body part needs to carry out a hydrostatic test on an oil duct water cavity according to the performance of the machine body part after processing, the machine body part needing to carry out the hydrostatic test is relatively complex in structure and relatively strict in requirements on pressure and sealing conditions during the hydrostatic test, the hydrostatic test aims at detecting the pressure bearing capacity and air tightness of important parts of the machine body part, so the hydrostatic test difficulty and the process of the machine body part are complex, and great difficulty is brought to the hydrostatic test, wherein the machine body part (such as a diesel engine body) is a cast iron part, an air inlet pipe, a cooling water inlet pipe and the machine body are cast into a whole and carry out the hydrostatic test respectively by using the pressure of 0.69MPa, a main oil passage hole with the pressure of phi 60 is used for the hydrostatic test by using the pressure of 0.98MPa, the pressure is respectively maintained for 10 minutes, a technical bottleneck exists when designing a hydrostatic test tool, the hydraulic test machine is characterized in that a plurality of oil holes are distributed on two side surfaces and two end surfaces, the oil holes of the machine body are communicated with the oil holes on the side surfaces, and the hole opening is in a circular arc shape, so that the sealing difficulty of the hydraulic test is quite high, the requirement of the hydraulic test on a drawing cannot be met, the hydraulic test is a last blank inspection gateway before finish machining, therefore, the quality of the hydraulic test directly relates to whether the product quality is qualified or not, whether quality accidents after installation can be reduced as much as possible or not is related, and finally the cost of a customer is reduced.
Disclosure of Invention
The technical problems solved by the invention are as follows: the utility model provides a hydrostatic test frock for inspection of organism part bearing capacity and gas tightness utilizes the hydrostatic test frock, can guarantee the inspection of the bearing capacity and the gas tightness of the water cavity of organism part, lubricating oil chamber and each oil duct, and the leakproofness is good when carrying out hydrostatic test, and the security is high, easy dismounting improves organism part hydrostatic test's quality and efficiency, simple structure, convenient operation, and application scope is wide, and the facilitate promotion is used.
The technical scheme adopted by the invention is as follows: a hydrostatic test frock for organism part bearing capacity and gas tightness inspection, system has a plurality of air cavity holes and water cavity mouth and air cavity hole and water cavity mouth respectively and locates the inside intake chamber and the water cavity of organism part and correspond the intercommunication, organism part is inside to be equipped with the grease chamber and two lateral walls of organism part and to make a plurality of oilholes that correspond the intercommunication with the grease chamber on controlling the terminal surface, the inside division oilhole of organism part corresponds the intercommunication with the grease chamber of organism part side, including cylinder hole sealing device, flange sealing device, oilhole sealing device and air bleeder, install the cylinder hole sealing device who seals both ends about the cylinder hole in the organism part, and be equipped with a plurality of flange sealing device that correspond with water cavity mouth and gas cavity hole position and seal water cavity mouth and gas cavity hole on the organism part, be equipped with oilhole sealing device and oilhole sealing device on the organism part with organism both sides wall part and control the side wall part, control the flange sealing device The oil hole on the end face and the opening oil hole in the machine body part are sealed, the upper end of the machine body part is provided with an air bleeder connected with the air cylinder hole sealing device, and the air bleeder is communicated with the air cylinder hole and connected with the water test quick change unit to complete the test of the bearing capacity and the air tightness of the machine body part after water injection, pressurization and pressure maintaining.
Wherein, the cylinder hole sealing device comprises a lower cover, a lower O-shaped sealing ring, a lower sealing gasket, an upper cover, an upper O-shaped sealing ring, an upper sealing washer, a screw, a pressing plate, a T-shaped bolt, a nut and a washer, the lower end of the lower cover is sleeved with the lower O-shaped sealing ring, the upper end of the lower cover is pressed into the bottom of the cylinder hole after being hermetically and fixedly connected with the lower end of a connecting piece arranged in the cylinder hole through the lower sealing gasket and the screw, the upper cover and the upper O-shaped sealing ring sleeved on the upper cover are arranged at the upper end of the cylinder hole, the lower end of the upper cover is fixedly connected with the upper end of the connecting piece through the screw, the upper sealing washer is arranged between the cover edge at the upper end of the cylinder hole and the cover edge at the upper end of the upper cover and the hole edge at the upper end of the cylinder hole, the pressing plate is arranged on the machine body part above the air inlet cavity and, and the upper cover is provided with a connecting hole communicated with the cylinder hole, and a threaded hole at the upper end of the connecting hole is matched and then fixedly connected with the air discharging device.
Further, the flange sealing device comprises a side flange, a sealing gasket I, a bolt and a flange, wherein a threaded hole corresponding to the position of a through hole in the side flange is formed in the side wall of the machine body part at the periphery of the water cavity opening and the air cavity hole, the bolt penetrates through the through holes in the side flange and the sealing gasket I and is screwed with the corresponding threaded hole in the side wall of the machine body part to seal the water cavity opening and the air cavity hole in the side wall of the machine body part, the flanges are arranged on the water cavity openings of the left end face and the right end face of the machine body part communicated with the water cavity, the sealing gaskets I are arranged between the flanges and the left end face and the right end face of the machine body part, and the bolt penetrates through the through holes in the flange and the sealing gasket I and is screwed with the threaded holes in.
Furthermore, the oil hole sealing device comprises an oil cavity stuffy plug, a red copper gasket, a special bolt, a support sleeve, a nut, a sealing gasket II and an oil hole flange, the oil hole in the two side walls of the machine body part penetrates through the red copper gasket through the oil cavity stuffy plug and is screwed with an internal thread in the oil hole to seal the oil hole, the oil hole in the left end surface and the right end surface of the machine body part penetrates through the oil hole flange and the sealing gasket II through a connecting screw and is screwed with a threaded hole corresponding to the left end surface and the right end surface of the machine body part to seal the oil hole in the left end surface and the right end surface of the machine body part, the special bolt and the support sleeve sleeved on the special bolt are pressed into the lower end of the opening oil hole.
Further, the air bleeder comprises an air bleeder screw and a gasket, the air bleeder screw penetrates through the gasket and is in adaptive connection with the upper end of a connecting hole in the cylinder hole sealing device, and the upper end of the air bleeder screw is connected with the water test quick-change unit and then is subjected to water injection, pressurization and pressure maintaining to complete the test of the pressure bearing capacity and the air tightness of the machine body part.
Compared with the prior art, the invention has the advantages that:
1. the design scheme meets the requirements of pressure-bearing capacity and air tightness tests of a water cavity, a lubricating oil cavity and each oil duct of a machine body part (such as a diesel engine body), meets the quality requirements of a hydraulic test, and improves the stability and operability of the hydraulic test tool in the using process;
2. the design scheme is that the steel part is designed, the deformation is small, the stability is good, rubber pads are additionally arranged at the joints, the sealing performance is good, the processing quality of the surfaces of the machine body parts is guaranteed, and the phenomenon that the surfaces of the machine body parts are scratched is effectively avoided;
3. the structure is convenient to mount and dismount, is beneficial to on-site hydrostatic test, improves the hydrostatic test efficiency of the water cavity, the lubricating oil cavity and each oil duct of the engine body part (such as a diesel engine body), and has good sealing property and safety;
4. by marking numbers or names on parts of the hydrostatic test tool, misoperation of workers in the operation process is avoided, the installation efficiency is improved, and the service life of the hydrostatic test tool is prolonged;
5. simple structure, convenient installation and disassembly, low tool cost and wide application range.
Drawings
FIG. 1 is a schematic structural diagram of a machine body part of the present invention;
FIG. 2 is a front view of the present invention installed with the machine components;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic view of a portion of FIG. 2 taken along line B;
fig. 5 is a partial view of fig. 2 taken along direction C.
Detailed Description
An embodiment of the invention applied to a diesel engine block part will be described below with reference to fig. 1 to 5.
A hydrostatic test tool for testing the bearing capacity and the air tightness of a machine body part is characterized in that the side wall of the machine body part 1 is provided with a plurality of air cavity holes 2 and water cavity ports 6, the air cavity holes 2 and the water cavity ports 6 are respectively correspondingly communicated with an air inlet cavity 5 and a water cavity 3 which are arranged inside the machine body part 1, the machine body part 1 is internally provided with a lubricating oil cavity 4, two side walls and left and right end faces of the machine body part 1 are provided with a plurality of oil holes 7 which are correspondingly communicated with the lubricating oil cavity 4, a gear opening oil hole 9 inside the machine body part 1 is correspondingly communicated with the lubricating oil cavity 4 on the side face of the machine body part 1 and comprises a cylinder hole sealing device, a flange sealing device, an oil hole sealing device and an air discharging device, the machine body part 1 is internally provided with the cylinder hole sealing device which seals the upper end and the lower end of a cylinder hole 8 in the machine body part 1, the side wall of the machine body part 1 is provided with a plurality of flange sealing devices which correspond to the, the machine body part 1 is provided with an oil hole sealing device which seals oil holes 7 on the two side walls and the left and right end surfaces of the machine body part 1 and a gear opening oil hole 9 inside the machine body part 1, the upper end of the machine body part 1 is provided with an air bleeder connected with the air cylinder hole sealing device, and the air bleeder is communicated with the air cylinder hole 8 and is connected with the water test quick change unit to complete the test of the pressure bearing capacity and the air tightness of the machine body part 1 after water injection, pressurization and pressure maintaining; specifically, the cylinder hole sealing device comprises a lower cover 10, a lower O-shaped sealing ring 11, a lower sealing gasket 12, an upper cover 13, an upper O-shaped sealing ring 14, an upper sealing washer 15, a screw 16, a pressure plate 17, a T-shaped bolt 18, a nut 19 and a gasket 20, wherein the lower end of the lower cover 10 is sleeved with the lower O-shaped sealing ring 11, the upper end of the lower cover 10 is fixedly connected with the lower end of a connecting piece 21 arranged in the cylinder hole 8 through the lower sealing gasket 12 and the screw 16 in a sealing manner, the lower cover 10 is pressed into the bottom of the cylinder hole 8, the upper cover 13 and the upper O-shaped sealing ring 14 sleeved on the upper cover 13 are arranged at the upper end of the cylinder hole 8, the lower end of the upper cover 13 is fixedly connected with the upper end of the connecting piece 21 through the screw 16, the upper sealing washer 15 is arranged between the cover edge at the upper end of the cylinder hole 8 and the cover edge at the upper end of the upper cover 13, the pressure plate 17 is arranged on the machine body part 1 above the air inlet cavity A nut 19 above the piston 17 is fixedly connected with a gasket 20 in a matching way, and then the upper cover 13 is pressed and fixed by a pressure plate 17, a connecting hole 22 communicated with the cylinder hole 8 is formed in the upper cover 13, and a threaded hole at the upper end of the connecting hole 22 is fixedly connected with an air discharging device in a matching way; specifically, the flange sealing device comprises a side flange 23, a sealing gasket I24, a bolt 25 and a flange 26, the side wall of the machine body part 1 around the water cavity opening 6 and the air cavity hole 2 is provided with a threaded hole corresponding to the position of the through hole on the side flange 23, the bolt 25 penetrates through the through holes on the side flange 23 and the sealing gasket I24 and then is screwed with the corresponding threaded hole on the side wall of the machine body part 1 to seal the water cavity opening 6 and the air cavity hole 2 on the side wall of the machine body part 1, flanges 26 are arranged on the water cavity opening 6 of the left end surface and the right end surface of the machine body part 1 which are communicated with the water cavity 3, sealing gaskets I24 are arranged between the flanges 26 and the left end surface and the right end surface of the machine body part 1, the bolt 25 penetrates through the through holes on the flange 26 and the sealing gasket I24 to be screwed with the threaded holes on the end surface of the machine body part 1, and then the water cavity ports 6 on the left end surface and the right end surface of the machine body part 1 are sealed; specifically, the oil hole sealing device comprises an oil cavity stuffy plug 27, a red copper gasket 28, a special bolt 29, a support sleeve 30, a nut 33, a sealing gasket II 31 and an oil hole flange 32, wherein the oil holes 7 on two side walls of the engine part 1 penetrate through the red copper gasket 28 through the oil cavity stuffy plug 27 and are screwed with internal threads in the oil holes 7 to seal the oil holes 7, the oil holes 7 on the left and right end surfaces of the engine part 1 penetrate through the oil hole flange 32 and the sealing gasket II 31 through connecting screws and are screwed with corresponding threaded holes on the left and right end surfaces of the engine part 1 to seal the oil holes 7 on the left and right end surfaces of the engine part 1, the special bolt 29 and the support sleeve 30 sleeved on the special bolt 29 are pressed into the lower end of the opening oil hole 9, the sealing gasket II 31 is sleeved on the lower end of the special bolt 29, and the opening; specifically, the air bleeder comprises an air bleeder screw 34 and a gasket 35, the air bleeder screw 34 penetrates through the gasket 35 and then is in adaptive connection with the upper end of a connecting hole 22 in the cylinder hole sealing device, and the upper end of the air bleeder screw 34 is connected with the water test quick change unit and then is subjected to water injection, pressurization and pressure maintaining to complete the test of the pressure bearing capacity and the air tightness of the machine body part 1.
The hydraulic test tool is assembled with the diesel engine body part 1 to perform hydraulic test of the oil duct water cavity. The using method comprises the following steps: the lower O-shaped sealing ring 11 is sleeved on the lower cover 10, the lower sealing gasket 12 is additionally arranged, the lower cover 10 and the lower end of a connecting piece 21 are screwed together by a screw 16, the lower cover 10 is pressed into the lower end of a cylinder hole 8, the upper O-shaped sealing ring 14 is sleeved on the upper cover 13, a sealing gasket 15 is additionally arranged between the upper edge of the upper cover 13 and the machine body part 1, the lower end of the upper cover 13 and the upper end of the connecting piece 21 are screwed together by the screw 16, the upper cover 13 is tightly pressed by a pressing plate 17 and then fixed at the upper end of the machine body part 1, the pressing plate 17 is fixed on the machine body part 1 after being matched and connected with a nut 19 and a gasket 20 which are positioned at the upper end of the pressing plate 17 by a T-shaped bolt 18 which is hooked on the inner wall of the air inlet cavity 5, then the side flange 23 is fixedly arranged on the side surface of the machine body part 1 after being tightly sealed by a gasket I24 and screwed with, the sealing of the water cavity opening 6 and the air cavity hole 2 is completed, an oil cavity choke plug 27 and a red copper gasket 28 are screwed into the oil hole 7 on the side surface of the machine body part 1, the sealing of the oil hole 7 is completed, a bolt 25 penetrates through a flange 26 at the position of the water cavity opening 6 at the left and right end surfaces of the machine body part 1 and a through hole on a sealing gasket I24 to be screwed with a threaded hole corresponding to the end surface of the machine body part 1, the water cavity openings 6 at the left and right end surfaces of the machine body part 1 are sealed, an oil hole flange 32 is screwed with threaded holes corresponding to the left and right end surfaces of the machine body part 1 by a connecting screw after being tightly sealed by a gasket II 31, the oil hole 7 at the left and right end surfaces of the machine body part 1 is sealed, after the special bolt 29 and a support sleeve 22 sleeved on the special bolt 29 are pressed into the lower end of the opening oil hole 9, the lower end of the opening oil hole 9 is sealed by a nut 33 and the lower end of the special bolt, and the upper end of the air-release screw 34 is connected with the water test quick-change unit, and then the pressure-bearing capacity and the air tightness of the machine body part 1 are tested through water injection, pressurization and pressure maintaining, wherein the gasket 35 is a red copper gasket.
Loosening and screwing out the air release bolt 34 after the hydrostatic test is finished, disassembling the hydrostatic test quick change unit, releasing water in the hydrostatic test tool, disassembling the special bolt 29 in the oil hole 9 of the engine body part 1, and then sequentially disassembling the oil hole flange 32, the flange 26 and the side flange 23; after the screw cap 19 is screwed out and the T-shaped bolt 18 is removed, the pressing plate 17 is taken down, the upper cover 13 and the lower cover 10 are removed after the connecting piece 21 is lifted; the machine body part 1 and the hydrostatic test tool are wiped and then placed in a designated area, so that the quality of the hydrostatic test tool can be guaranteed, and the test efficiency and the safety of the hydrostatic test tool can be improved.
Because the hydrostatic test tool is a combined whole, the hydrostatic test tool is convenient to use, install and disassemble, and when the side flange 23, the flange 26, the oil hole flange 32, the upper cover 13, the lower cover 10 and the special bolt 29 are installed, in order to protect the quality of the processing surface of the machine body part 1, the machine body part 1 is protected by additionally arranging a rubber cushion; because the pressure of the hydraulic test of the oil duct and the water cavity 3 in the machine body part 1 is 0.69MPa and 1.0MPa respectively, and the pressure of each cavity is maintained for 10 minutes, the hydraulic test quick-change unit is added mainly for ensuring the safety of the hydraulic test and prolonging the service life of the hydraulic test tool. The design scheme meets the requirements of the pressure-bearing capacity and the air tightness test of the water cavity 3, the lubricating oil cavity 4 and each oil duct of the engine body part 1 (such as a diesel engine body), meets the quality requirement of the hydraulic test, improves the stability and the operability of the hydraulic test tool in the using process, the hydraulic test tool is designed into a steel part, has small deformation and good stability, rubber pads are additionally arranged at the joints, has good sealing property, ensures the processing quality of the surface of the engine body part 1, effectively avoids the phenomenon of scratching the surface of the engine body part 1, is convenient to mount and dismount, is beneficial to the use of the on-site hydraulic test, improves the hydraulic test efficiency of the water cavity 3, the lubricating oil cavity 4 and each oil duct of the engine body part 1, has good sealing property and safety, avoids the misoperation of workers in the operation process by marking numbers or names on the parts of the hydraulic test tool, improves the mounting efficiency and the service life of the repeated use of, simple structure, convenient installation and disassembly, low tool cost and wide application range.
The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.
Claims (3)
1. A hydrostatic test frock for inspection of organism part bearing capacity and gas tightness, system has a plurality of air cavity holes (2) and water cavity mouth (6) and air cavity hole (2) and water cavity mouth (6) on the lateral wall of organism part (1) respectively with locate organism part (1) inside admit air chamber (5) and water cavity (3) correspond the intercommunication, organism part (1) inside is equipped with oilhole (7) that oilhole (4) correspond the intercommunication with oilhole (4) of system on two lateral walls of organism part (1) and the left and right sides terminal surface, the oilhole (9) of opening the shelves of organism part (1) inside corresponds the intercommunication with the oilhole (4) of organism part (1) side, its characterized in that: the machine body part comprises a cylinder hole sealing device, a flange sealing device, an oil hole sealing device and an air bleeding device, wherein the cylinder hole sealing device for sealing the upper end and the lower end of a cylinder hole (8) in the machine body part (1) is arranged in the machine body part (1), a plurality of flange sealing devices which correspond to the positions of a water cavity opening (6) and an air cavity hole (2) and seal the water cavity opening (6) and the air cavity hole (2) are arranged on the side wall of the machine body part (1), the machine body part (1) is provided with the oil hole sealing device which seals oil holes (7) on the two side walls and the left and right end surfaces of the machine body part (1) and a gear opening oil hole (9) inside the machine body part (1), the upper end of the machine body part (1) is provided with the air bleeding device connected with the cylinder hole sealing device, the air bleeding device is communicated with the cylinder hole (8) and connected with a, The pressure bearing capacity and the air tightness of the machine body part (1) are tested after pressurization and pressure maintaining;
the cylinder hole sealing device comprises a lower cover (10), a lower O-shaped sealing ring (11), a lower sealing gasket (12), an upper cover (13), an upper O-shaped sealing ring (14), an upper sealing gasket (15), a screw (16), a pressing plate (17), a T-shaped bolt (18), a nut (19) and a gasket (20), wherein the lower end of the lower cover (10) is sleeved with the lower O-shaped sealing ring (11), the upper end of the lower cover (10) is fixedly connected with the lower end of a connecting piece (21) arranged in a cylinder hole (8) through the lower sealing gasket (12) and the screw (16) in a sealing manner, then the lower cover (10) is pressed into the bottom of the cylinder hole (8), the upper cover (13) and the cylinder hole (13) are fixedly connected with the upper end of the connecting piece (21) through the screw (16), the upper end of the upper cover (13) is fixedly connected with the upper end of the upper cover (13) along the upper edge of the upper cover (13) and the upper end of the cylinder hole (8) An upper sealing washer (15) is arranged between the edges of the holes at the upper end of the upper cover, the pressing plate (17) is arranged on the machine body part (1) above the air inlet cavity (5) and is fixedly connected with a nut (19) and a washer (20) which are positioned above the pressing plate (17) in a matched manner through a T-shaped bolt (18) which is hooked in the air inlet cavity (5), the upper cover (13) is pressed and fixed by the pressing plate (17), a connecting hole (22) communicated with the air cylinder hole (8) is formed in the upper cover (13), and a threaded hole at the upper end of the connecting hole (22) is fixedly connected with an air bleeding device in a matched manner;
the oil hole sealing device comprises an oil cavity stuffy plug (27), a red copper gasket (28), a special bolt (29), a support sleeve (30), a nut (33), a sealing gasket II (31) and an oil hole flange (32), wherein the oil holes (7) on the two side walls of the engine body part (1) penetrate through the red copper gasket (28) through the oil cavity stuffy plug (27) and are screwed with internal threads in the oil holes (7) to seal the oil holes (7), the oil holes (7) on the left and right end surfaces of the engine body part (1) penetrate through the oil hole flange (32) and the sealing gasket II (31) through connecting screws and are screwed with threaded holes corresponding to the left and right end surfaces of the engine body part (1) to seal the oil holes (7) on the left and right end surfaces of the engine body part (1), the special bolt (29) and the support sleeve (30) sleeved on the special bolt (29) are pressed into the lower end of the opening oil hole (9), and the, the opening oil hole (9) is sealed after the nut (33) is screwed and fixedly connected with the special bolt (29).
2. The hydrostatic test tool for detecting the bearing capacity and the air tightness of the machine body part as claimed in claim 1, wherein: the flange sealing device comprises a side flange (23), a sealing gasket I (24), a bolt (25) and a flange (26), wherein threaded holes corresponding to the positions of the through holes in the side flange (23) are formed in the side wall of the machine body part (1) at the periphery of the water cavity opening (6) and the air cavity hole (2), the bolt (25) penetrates through the through holes in the side flange (23) and the sealing gasket I (24) to be screwed with the corresponding threaded holes in the side wall of the machine body part (1) to seal the water cavity opening (6) and the air cavity hole (2) in the side wall of the machine body part (1), the flange (26) is arranged on the water cavity opening (6) communicated with the water cavity (3) in the left end face and the right end face of the machine body part (1), the sealing gasket I (24) is arranged between the flange (26) and the left end face and the right end face of the machine body part (1), the bolt (25) penetrates through the through holes in the flange (26) and the sealing gasket I (24) to (1) The water cavity ports (6) on the left end surface and the right end surface are sealed.
3. The hydrostatic test tool for detecting the bearing capacity and the air tightness of the machine body part as claimed in claim 1, wherein: the air bleeder comprises an air bleeder screw (34) and a gasket (35), the air bleeder screw (34) penetrates through the gasket (35) and then is in adaptive connection with the upper end of a connecting hole (22) in the cylinder hole sealing device, and the upper end of the air bleeder screw (34) is connected with the water test quick-change unit and then is subjected to water injection, pressurization and pressure maintaining to complete the test of the pressure bearing capacity and the air tightness of the machine body part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710504555.3A CN107192504B (en) | 2017-06-28 | 2017-06-28 | Hydraulic test tool for testing pressure bearing capacity and air tightness of engine body part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710504555.3A CN107192504B (en) | 2017-06-28 | 2017-06-28 | Hydraulic test tool for testing pressure bearing capacity and air tightness of engine body part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107192504A CN107192504A (en) | 2017-09-22 |
| CN107192504B true CN107192504B (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710504555.3A Active CN107192504B (en) | 2017-06-28 | 2017-06-28 | Hydraulic test tool for testing pressure bearing capacity and air tightness of engine body part |
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| CN (1) | CN107192504B (en) |
Families Citing this family (2)
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|---|---|---|---|---|
| CN109752147B (en) * | 2018-12-07 | 2021-07-06 | 四川中车玉柴发动机股份有限公司 | Cam hole oil duct hydrostatic test frock |
| CN113551893B (en) * | 2021-07-07 | 2024-06-07 | 陕西柴油机重工有限公司 | Pressure test device for diesel engine air distributor body |
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| CN107192504A (en) | 2017-09-22 |
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Inventor after: Ma Ayan Inventor after: Wei Dongdong Inventor after: Sun Zhihong Inventor after: Wei Jiangtao Inventor after: Liu Yan Inventor before: Ma Ayan Inventor before: Wei Dongdong |