CN210533611U - Auxiliary tool for hydraulic pressure test of tightness of single-section pipe fitting of main oil duct - Google Patents
Auxiliary tool for hydraulic pressure test of tightness of single-section pipe fitting of main oil duct Download PDFInfo
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- CN210533611U CN210533611U CN201921479120.9U CN201921479120U CN210533611U CN 210533611 U CN210533611 U CN 210533611U CN 201921479120 U CN201921479120 U CN 201921479120U CN 210533611 U CN210533611 U CN 210533611U
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Abstract
An auxiliary tool for hydraulic pressure test of the tightness of a single-section pipe fitting of a main oil duct is installed at two ends of an oil pipe joint seat comprising the single-section pipe fitting and two ends of the single-section pipe fitting and comprises a water inlet screw plug, a stuffy plug, two screw rods, two first top sleeves, a second top sleeve and an O-shaped sealing ring, wherein the outer side hole opening of the oil pipe joint seat at one end of the single-section pipe fitting is plugged by the inner side of the water inlet screw plug; the inner side of the choke plug plugs the outer side orifice of the oil pipe connecting seat at the other end of the single-section pipe fitting, the second jacking sleeve is connected to the outer side of the choke plug through threads and jacks a diesel engine body, and the choke plug is hermetically jacked on the outer side orifice of the other oil pipe connecting seat; the O-shaped sealing ring is arranged between the water inlet screw plug and the oil pipe connecting seat and between the closing plug and the oil pipe connecting seat. The utility model discloses can in time discover to reveal the problem, reduce the rework degree of difficulty, promote the operating efficiency, guarantee the leakproofness of main oil duct.
Description
Technical Field
The utility model relates to an inspection diesel engine oil duct's appurtenance, concretely relates to appurtenance that is used for main oil duct single-stage pipe fitting leakproofness water pressure to inspect belongs to the diesel engine and makes technical field.
Background
The high-speed diesel engine is a power machine applied to ships, is the heart of the ships, has significance, is the guarantee of sailing and sailing of ships, is related to aspects of transportation, commerce and trade, national safety and the like, and therefore has very high requirements on the aspects of quality, precision, performance and the like. For the processing of all parts of the diesel engine, each procedure must be executed strictly according to the requirements of the process and the drawing, after one procedure is finished, the strict inspection of professional inspectors must be carried out, the next procedure can be carried out after the requirements are met, and each finished part is required to be lean and refined.
The main body of the high-speed diesel engine is an engine body, and the main oil gallery is an important part on the engine body and is the life pulse of the diesel engine, and the quality requirement of the diesel engine is very high. The main oil duct is formed by connecting a plurality of single-section pipe fittings end to end, and two ends of each single-section pipe fitting are fixedly connected to an oil pipe connecting seat on the machine body in a sealing mode through reaming processing. The main oil gallery is like the aorta where human blood flows, and the aim of controlling the tightness of the main oil gallery is to ensure the normal operation of the diesel engine. The tightness of the connection between the single-section pipe fitting and the oil pipe joint seat is an important quality requirement index for the installation of the main oil gallery, and is tested by a hydraulic test.
The existing inspection method is that after all single-section pipe fittings are installed on the oil pipe joint seat, water is injected from two ends to perform a pressure test, and whether leakage exists at the joint of each single-section pipe fitting and the oil pipe joint seat is observed. However, this method has the disadvantages that once leakage is found on the main oil gallery and occurs at the joint of one or several single-section pipe fittings in the middle section of the main oil gallery, the leaked single-section pipe fittings are required to be reworked and replaced, and due to the special position, the operation difficulty of detaching the single-section pipe fittings from the middle of the main oil gallery and re-reaming the single-section pipe fittings for connecting and installing the single-section pipe fittings is very high, all oil pipes may have to be removed for integral rework, which results in irreversible damage to machine body parts, and also results in increased rework difficulty and large waste of processing time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art and lack the not enough that the process inspection leads to the rework degree of difficulty big to the processing installation of oil duct, provide an appurtenance that is used for main oil duct single section pipe fitting leakproofness water pressure to inspect, in the installation of main oil duct, just can carry out leakproofness water pressure inspection to the installation section after every one section single section pipe fitting of installation, realize in time discovering the quality defect, in time carry out rework repair, thereby guarantee the leakproofness of main oil duct after the installation construction, avoid causing the quality accident.
In order to achieve the above object, the technical solution of the present invention is as follows:
the utility model provides an appurtenance that is used for single section pipe fitting leakproofness water pressure of main oil gallery to inspect installs in the both ends of the main oil gallery of treating the inspection, and this main oil gallery includes the oil pipe joint chair at single section pipe fitting and both ends, and this oil pipe joint chair is fixed to be set up on the organism of diesel engine, the both ends of single section pipe fitting seal ground fixed connection respectively in the inboard drill way of oil pipe joint chair, its characterized in that: the auxiliary tool comprises a water inlet screw plug, a plug, two screw rods, two first jacking sleeves, a second jacking sleeve and an O-shaped sealing ring; the inner side of the water inlet screw plug plugs the outer side hole opening of the oil pipe joint seat at one end of the single-section pipe fitting, the two first jacking sleeves are respectively connected to one ends of the two screw rods through threads and prop against the outer side of the water inlet screw plug, the other ends of the two screw rods prop against the body of the diesel engine, and the two screw rods and the two first jacking sleeves prop the water inlet screw plug on the outer side hole opening of the oil pipe joint seat in a sealing manner through relative rotation; the inner side of the plug plugs the outer side orifice of the oil pipe connecting seat at the other end of the single-section pipe fitting, the second top sleeve is connected to the outer side of the plug through threads and props against the body of the diesel engine, and the plug and the second top sleeve are plugged on the outer side orifice of the oil pipe connecting seat in a sealing manner through relative rotation; the O-shaped sealing rings are arranged between the water inlet screw plug and the oil pipe connecting seat and between the closing plug and the oil pipe connecting seat so as to prevent test water from leaking; and test water enters the oil pipe connecting seat and the inner cavity of the single-section pipe fitting through the water inlet screw plug to carry out hydraulic sealing inspection.
Further, the water inlet plug screw be a step axle, be equipped with the central through-hole that is used for letting in the test water on the axle center vertically with running through, the inboard of this water inlet plug screw is plunger portion, the stopper locate in the outside opening of oil pipe connection seat, seted up on the periphery of plunger portion and set up the seal groove of O type sealing washer, the outside is connected with the external diameter and is greater than the shoulder portion of plunger portion is equipped with two top-stopping holes on the lateral surface of this shoulder portion.
Furthermore, the two top stop holes are blind holes and are symmetrically arranged about the axis of the water inlet screw plug.
Furthermore, the first top sleeve is a cylindrical component, a central threaded through hole screwed with the screw rod is formed in the axis of the first top sleeve, and the first top sleeve is inserted into the top stopping hole.
Further, the stuffy plug be a step axle, including consecutive plunger portion, shoulder and screw thread portion, be located inboard plunger portion stopper and arrange in the outside opening of oil pipe connection seat has seted up the setting on the periphery the seal groove of O type sealing washer, the outside of this plunger portion is connected with the external diameter and is greater than the shoulder of plunger portion, the outside of this shoulder is connected screw thread portion.
Furthermore, the second top sleeve is a cylindrical component, the axis is provided with a central threaded blind hole, and the central threaded blind hole is screwed on the threaded part of the plug.
Compared with the prior art, the beneficial effects of the utility model are that:
1) in the process of machining the main oil pipe, when a single-section pipe fitting is installed, the auxiliary tool can be used for carrying out water pressure tightness inspection on the installed section in time, so that the problem of water pressure tightness of the single-section pipe fitting of the main oil duct can be found in time, and rework is carried out in time, so that the rework time is greatly reduced, and the rework difficulty is reduced;
2) the auxiliary tool can find out the machining problem in time, and ensures the installation quality of one single-section pipe fitting when the single-section pipe fitting is installed in an expanding way, so that the sealing property of the main oil duct of the machine body is ensured;
3) the utility model discloses the result of application is showing in production practice, is showing and is promoting the operating efficiency, has reached the effect that improves production economic benefits.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of a water inlet screw plug.
Fig. 3 is a schematic diagram of the structure of the plug.
Fig. 4 is a schematic structural view of the screw.
Fig. 5 is a schematic structural view of the first barrel.
Fig. 6 is a schematic structural view of the second barrel.
Fig. 7 is a use state diagram of the present invention.
Detailed Description
The auxiliary tool for hydraulic pressure testing of the tightness of the single-section pipe fitting of the main oil gallery according to the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 7, a plurality of oil pipe connecting seats B are fixedly arranged on the surface of a body C of the high-speed diesel engine, the oil pipe connecting seats B are provided with connecting holes for installing single-section pipe fittings a, a single-section pipe fitting a is installed between every two adjacent oil pipe connecting seats B by flaring, and a main oil gallery is formed by connecting a plurality of single-section pipe fittings a end to end after the single-section pipe fittings a are installed. During the installation single section pipe fitting A's both ends are in the inboard (towards one side of single section pipe fitting A) drill way of the oil pipe joint chair B of both sides respectively sealed fixed connection, every single section pipe fitting A of having installed, just can with appurtenance installs in the both ends of this main oil gallery section of having installed, treats the main oil gallery of inspection and carries out leakproofness water pressure inspection.
Referring to fig. 1, the auxiliary tool for testing the tightness of the single-section pipe fitting of the main oil gallery includes a water inlet plug screw 1, a plug 2, two screws 5, two first push sleeves 3, a second push sleeve 4 and an O-shaped sealing ring 6.
Referring to fig. 2, the water inlet plug screw 1 is a stepped shaft, and a central through hole 11 is longitudinally formed on the shaft center, and the central through hole 11 is used for introducing test water. The inner side (the side close to the single-stage pipe fitting a, the right side in the figure) of the water inlet screw plug 1 is a plunger part 12, and the periphery of the plunger part is provided with a sealing groove 14. The outer side (the side far away from the single-section pipe fitting A, the left side in the figure) of the plunger part 12 is connected with a shoulder part 13, the outer diameter of the shoulder part 13 is larger than that of the plunger part 12, two top stopping holes 15 are arranged on the outer side surface of the shoulder part 13, and the two top stopping holes 15 are blind holes and are symmetrically arranged about the axis of the water inlet screw plug 1. The outer diameter of the plunger part 12 is slightly smaller than the aperture of the connecting hole of the oil pipe joint seat B, and referring to fig. 7, the plunger part 12 is plugged in the opening on the outer side (the side far away from the single-section pipe fitting a) of the connecting hole of the oil pipe joint seat B at the left end, so as to plug the outer side hole opening of the oil pipe joint seat B at the left end of the single-section pipe fitting a. The O-shaped sealing ring 6 is arranged in the sealing groove 14 of the plunger part 12 and is clamped between the water inlet screw plug 1 and the oil pipe connecting seat B to prevent the test water from leaking.
The screw 5 is shown in figure 4. The first sleeve 3 is a cylindrical member, please refer to fig. 5, and the axis thereof is provided with a central threaded through hole 31 to be screwed with the screw rod 5. The two groups of screw threads are screwed with the first top sleeves 3 and the screws 5, the first top sleeves 3 are respectively inserted into two top stopping holes 15 of the water inlet screw plug 1 and abut against the outer side of the water inlet screw plug 1, the other end of the screw 5 abuts against a body C of the diesel engine, see fig. 7, and the two screws 5 and the two first top sleeves 3 hermetically abut against the water inlet screw plug 1 on an orifice of the outer side (one side far away from the single-section pipe fitting A) of the oil pipe joint B on the left side through relative rotation.
Referring to fig. 3, the plug 2 is a stepped shaft, and includes a plunger portion 22, a shoulder portion 23, and a threaded portion 21 connected in series. A seal groove 24 is formed in the outer periphery of the plunger portion 22 on the inner side (the side close to the single-piece pipe a, the left side in the figure), a shoulder portion 23 having an outer diameter larger than that of the plunger portion 22 is connected to the outer side (the side far from the single-piece pipe a, the right side in the figure) of the plunger portion 22, and the outer side of the shoulder portion 23 is connected to the threaded portion 21. The outer diameter of the plunger part 22 is slightly smaller than the aperture of the connecting hole of the oil pipe joint seat B, and referring to fig. 7, the plunger part 22 is plugged in the opening of the outer side (the side far away from the single-section pipe fitting a) of the connecting hole of the oil pipe joint seat B at the right end, so as to plug the outer side hole opening of the oil pipe joint seat B at the right end of the single-section pipe fitting a. The O-shaped sealing ring 6 is arranged in the sealing groove 24 of the plunger part 22 and is clamped between the plug 2 and the oil pipe connecting seat B to prevent the test water from leaking.
Referring to fig. 6, the second sleeve 4 is a cylindrical member, and the axial center thereof is provided with a central threaded blind hole 41, and the central threaded blind hole 41 is screwed on the threaded portion 21 of the plug 2. Referring to fig. 7, the outer side (the side far away from the single-section pipe fitting a) of the second top sleeve 4 abuts against the body C of the diesel engine, and the plug 2 and the second top sleeve 4 tightly press the plug 2 against the outer port of the right oil pipe joint seat B through relative rotation.
After the auxiliary tool is installed, test water enters the inner cavities of the oil pipe connecting seat B and the single-section pipe fitting A through the water inlet screw plug 1 to carry out hydraulic sealing inspection.
The utility model discloses a concrete application method as follows:
step 1: finishing flaring machining of the single-section pipe fitting A of the main oil duct;
step 2: connecting the first top sleeve 3 with the screw rod 5;
and step 3: connecting the second top sleeve 4 with the plug 2;
and 4, step 4: the O-shaped sealing rings 6 are respectively arranged on the water inlet screw plug 1 and the plug 2;
and 5: respectively plugging a water inlet screw plug 1 and a connected plug 2 into orifices of the outer ends (the side far away from the single-section pipe fitting A) of oil pipe connecting seats B on two sides of a main oil duct section to be tested after the installation is finished;
step 6: the first jacking sleeve 3 and the screw rod 5 connected in the step 2 are arranged between the water inlet screw plug 1 and the outer wall of the machine body C in a jacking mode, the screw rod 5 is rotated to control the length, and the water inlet screw plug 1 is guaranteed to be plugged on the outer side hole opening of the oil pipe connecting seat B on the left side in a sealing mode;
and 7: the second top sleeve 4 is arranged on the outer wall of the machine body C in a top-mounted mode, and the second top sleeve 4 is rotated to control the length, so that the choke plug 2 is enabled to be tightly pressed on an opening on the outer side (the side far away from the single-section pipe fitting A) of the oil pipe joint seat B on the right side.
And 8: and injecting test water into the water inlet screw plug 1 to perform hydraulic sealing test.
Claims (6)
1. The utility model provides an appurtenance that is used for single section pipe fitting leakproofness water pressure of main oil gallery to inspect installs in the both ends of the main oil gallery of treating the inspection, and this main oil gallery includes the oil pipe joint chair at single section pipe fitting and both ends, and this oil pipe joint chair is fixed to be set up on the organism of diesel engine, the both ends of single section pipe fitting seal ground fixed connection respectively in the inboard drill way of oil pipe joint chair, its characterized in that: the auxiliary tool comprises a water inlet screw plug, a plug, two screw rods, two first jacking sleeves, a second jacking sleeve and an O-shaped sealing ring; the inner side of the water inlet screw plug plugs the outer side hole opening of the oil pipe joint seat at one end of the single-section pipe fitting, the two first jacking sleeves are respectively connected to one ends of the two screw rods through threads and prop against the outer side of the water inlet screw plug, the other ends of the two screw rods prop against the body of the diesel engine, and the two screw rods and the two first jacking sleeves prop the water inlet screw plug on the outer side hole opening of the oil pipe joint seat in a sealing manner through relative rotation; the inner side of the plug plugs the outer side orifice of the oil pipe connecting seat at the other end of the single-section pipe fitting, the second top sleeve is connected to the outer side of the plug through threads and props against the body of the diesel engine, and the plug and the second top sleeve are plugged on the outer side orifice of the oil pipe connecting seat in a sealing manner through relative rotation; the O-shaped sealing rings are arranged between the water inlet screw plug and the oil pipe connecting seat and between the closing plug and the oil pipe connecting seat so as to prevent test water from leaking; and test water enters the oil pipe connecting seat and the inner cavity of the single-section pipe fitting through the water inlet screw plug to carry out hydraulic sealing inspection.
2. The auxiliary tool for hydraulic inspection of the tightness of the single-section pipe of the main oil gallery according to claim 1, wherein: the water inlet screw plug is a stepped shaft, a central through hole for leading in test water is longitudinally arranged on the shaft center in a penetrating manner, the inner side of the water inlet screw plug is a plunger part, the plug is arranged in an outer opening of the oil pipe connecting seat, the periphery of the plunger part is provided with a sealing groove of the O-shaped sealing ring, the outer side of the sealing groove is connected with a shoulder part of which the outer diameter is larger than that of the plunger part, and two top stop holes are arranged on the outer side surface of the shoulder part.
3. The auxiliary tool for hydraulic inspection of the tightness of the single-section pipe of the main oil gallery according to claim 2, wherein: the two top stop holes are blind holes and are symmetrically arranged about the axis of the water inlet screw plug.
4. The auxiliary tool for hydraulic inspection of the tightness of the single-section pipe of the main oil gallery according to claim 3, wherein: the first top sleeve is a cylindrical component, the axis of the first top sleeve is provided with a central thread through hole screwed with the screw rod, and the first top sleeve is inserted in the top stopping hole.
5. The auxiliary tool for hydraulic inspection of the tightness of the single-section pipe of the main oil gallery according to claim 1, wherein: the stuffy plug be a step axle, including consecutive plunger portion, shoulder and screw thread portion, be located inboard plunger portion stopper and arrange in the outside opening that oil pipe connects the seat has seted up in the periphery the setting the seal groove of O type sealing washer, the outside of this plunger portion is connected with the external diameter and is greater than the shoulder of plunger portion, the outside of this shoulder is connected screw thread portion.
6. The auxiliary tool for hydraulic inspection of the tightness of the single-section pipe of the main oil gallery according to claim 5, wherein: the second top sleeve is a cylindrical component, the axis is provided with a central threaded blind hole, and the central threaded blind hole is screwed on the threaded part of the choke plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921479120.9U CN210533611U (en) | 2019-09-06 | 2019-09-06 | Auxiliary tool for hydraulic pressure test of tightness of single-section pipe fitting of main oil duct |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921479120.9U CN210533611U (en) | 2019-09-06 | 2019-09-06 | Auxiliary tool for hydraulic pressure test of tightness of single-section pipe fitting of main oil duct |
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| Publication Number | Publication Date |
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| CN210533611U true CN210533611U (en) | 2020-05-15 |
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| CN201921479120.9U Active CN210533611U (en) | 2019-09-06 | 2019-09-06 | Auxiliary tool for hydraulic pressure test of tightness of single-section pipe fitting of main oil duct |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268807A (en) * | 2020-10-19 | 2021-01-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Device and method for testing water pressure resistance of plugging material in real medium |
-
2019
- 2019-09-06 CN CN201921479120.9U patent/CN210533611U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268807A (en) * | 2020-10-19 | 2021-01-26 | 水利部交通运输部国家能源局南京水利科学研究院 | Device and method for testing water pressure resistance of plugging material in real medium |
| CN112268807B (en) * | 2020-10-19 | 2022-03-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Device and method for testing water pressure resistance of plugging material in real medium |
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