Device for measuring leakage flow of lubricating oil of piston ring
By separately measuring the leakage flow of the expansion rings on both sides of the oil inlet in the expansion ring lubricating oil leakage flow measuring device, the problem of undetected sealing performance of the expansion ring in the prior art is solved, and accurate measurement and measurement of the expansion ring leakage flow are achieved. Identification, unqualified circles, high measurement accuracy and low cost.
Patent Information
- Application Number
- CN202420379798.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The existing expansion ring has not been tested for sealing performance after production, resulting in poor sealing effect during engine operation and posing safety hazards.
Design an expansion ring oil leakage flow measurement device. By arranging expansion rings on both sides of the oil inlet, and using the partition plate in the elastic support positioning plate, the oil leakage from the two expansion rings can be measured separately. Separate measurement of oil leakage in group expansion rings.
It achieves accurate measurement of expansion ring leakage flow, can accurately identify unqualified expansion rings, simulates engine working conditions, has high measurement accuracy, is simple in structure and easy to operate, and reduces the cost of using precision equipment.
Smart Images
Figure CN222379291U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device for measuring the leakage flow of expansion ring lubricating oil, belonging to the technical field of expansion ring production. Background Art
[0002] The expansion ring is installed between the relatively stationary shaft parts and the outer shell to play a sealing role. However, the current expansion ring will not be tested for sealing performance after production, but will be directly assembled to the corresponding position of the engine. Therefore, the sealing effect of the engine cannot be guaranteed when it is working, which poses certain safety risks. Utility Model Content
[0003] In order to solve the problems existing in the background technology, the utility model provides a device for measuring the leakage flow of expansion ring lubricating oil.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for measuring the leakage flow of an expansion ring lubricating oil, comprising a base, a support frame, an elastic support positioning plate, a sealing cover, an oil nozzle and a support sleeve; the upper end of the base is fixedly connected to the lower end of the vertically arranged support frame, the side wall of the upper end of the support frame is fixedly connected to one end of the elastic support positioning plate, a partition plate is provided in the elastic support positioning plate, an expansion ring 1 and an expansion ring 2 are installed on the elastic support positioning plate, and the partition plate is located between the expansion ring 1 and the expansion ring 2; the outer sealing ring sleeve of the other end of the elastic support positioning plate is provided with a sealing cover, the outer side of the sealing cover is provided with a support sleeve, the upper end of the support sleeve is provided with a lubricating oil input hole, and the lower end of the support sleeve is plugged with an oil nozzle.
[0005] The elastic support positioning plate includes a ring plate and a cylinder body, the ring plate is coaxially fixedly sleeved on the outer side of the cylinder body, and the ring plate and the cylinder body are integrally formed; the end face of the ring plate is provided with a sealing groove, a sealing ring is installed in the sealing groove, and the outer wall of the cylinder body is provided with an expansion ring first lubricating oil leakage collecting groove, an expansion ring first installation groove, an oil inlet ring groove and an expansion ring second installation groove in sequence, and the expansion ring first lubricating oil leakage collecting groove is arranged adjacent to the ring plate; the inner wall of the cylinder body is provided with a partition plate, and the partition plate is located between the expansion ring first installation groove and the expansion ring second installation groove.
[0006] The outer wall of the sealing cover is provided with an expansion ring 1 lubricating oil outlet hole, an expansion ring 2 lubricating oil outlet hole and a plurality of oil through holes, and the plurality of oil through holes are connected with the corresponding oil inlet ring groove; the end of the sealing cover is abutted against the ring plate and sealed by a sealing ring, and an expansion ring 2 lubricating oil leakage collecting chamber is formed between the sealing cover and the partition plate, and the expansion ring 2 lubricating oil leakage collecting chamber is connected with the expansion ring 2 lubricating oil outlet hole; an expansion ring 1 lubricating oil leakage collecting channel is formed between the sealing ring and the partition plate, and the expansion ring 1 lubricating oil leakage collecting channel is connected with the expansion ring 1 lubricating oil outlet hole.
[0007] A mounting hole is provided at the lower end of the outer wall of the support sleeve, and the mounting hole is connected to a lubricating oil outlet hole of the expansion ring, and an oil nozzle is inserted in the mounting hole. An oil inlet groove is provided on the inner wall of the support sleeve, and the oil inlet groove is connected to the lubricating oil input hole, and the oil inlet groove is connected to multiple oil holes.
[0008] Compared with the prior art, the beneficial effects of the utility model are:
[0009] The utility model arranges two expansion rings at both sides of the oil inlet respectively, and cooperates with the partition plate in the middle of the elastic support positioning plate, so that the lubricating oil leaked from the two expansion rings can flow out from the two oil outlets respectively, realizing the function of separately measuring the oil leakage of the group of expansion rings; and because of the separate measurement function, when the leakage flow of one of the expansion rings is unqualified, it can be accurately replaced; the working condition of the engine is simulated, with high measurement accuracy; at the same time, the expansion ring leakage measurement function can be completed only with the cooperation of the lubricating oil pump, the structure is simple, the operation is convenient, and the use cost of the precision equipment is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the utility model;
[0011] Figure 2 yes Figure 1 A cross-sectional view of
[0012] Figure 3 It is a structural schematic diagram of the elastic support positioning plate;
[0013] Figure 4 1 is a schematic diagram of the structure of the sealing cover;
[0014] Figure 5 It is a structural diagram of the support sleeve. DETAILED DESCRIPTION
[0015] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0016] A device for measuring the leakage flow of an expansion ring and lubricating oil comprises a base 1, a support frame 2, an elastic support positioning plate 3, a sealing cover 5, an oil nozzle 6 and a support sleeve 7; the upper end of the base 1 is fixedly connected to the lower end of the vertically arranged support frame 2 by bolts, and the side wall of the upper end of the support frame 2 is fixedly connected to one end of the elastic support positioning plate 3 by positioning pins and bolts, a partition plate 13 is provided in the elastic support positioning plate 3, an expansion ring 18 and an expansion ring 2 19 are installed on the elastic support positioning plate 3, and the partition plate 13 is located between the expansion ring 18 and the expansion ring 2 19; the outer sealing ring sleeve of the other end of the elastic support positioning plate 3 is provided with a sealing cover 5, and the outer side of the sealing cover 5 is provided with a support sleeve 7, the upper end of the support sleeve 7 is provided with a lubricating oil input hole 20, and the lower end of the support sleeve 7 is plugged with an oil nozzle 6.
[0017] The elastic support positioning plate 3 includes a ring plate and a cylinder body, the ring plate is coaxially fixedly sleeved on the outer side of the cylinder body, and the ring plate and the cylinder body are integrally formed; the cylinder body is inserted into the support frame 2, and the ring plate and the support frame 2 are fixedly connected by bolts. The end face of the ring plate is provided with a sealing groove 8 in the circumference, and a sealing ring 4 is installed in the sealing groove 8, and the sealing ring 4 effectively seals the lubricating oil of the expansion ring 1; the outer wall of the cylinder body is provided with a circumferentially arranged expansion ring 1 lubricating oil leakage collecting groove 9, an expansion ring 1 installation groove 10, an oil inlet ring groove 11 and an expansion ring 2 installation groove 12, and the expansion ring 1 lubricating oil leakage collecting groove 9 is arranged adjacent to the ring plate; the inner wall of the cylinder body is provided with a partition plate 13 (elastic support thin plate) in the circumference, which cooperates with the sealing sleeve 5 to isolate the oil leaked from the expansion ring 2, and the partition plate 13 is located between the expansion ring 1 installation groove 10 and the expansion ring 2 installation groove 12.
[0018] The outer wall of the sealing cover 5 is provided with an expansion ring first lubricating oil outlet hole 15, an expansion ring second lubricating oil outlet hole 16 and a plurality of oil through holes 14 through the thickness direction thereof. The plurality of oil through holes 14 are evenly distributed in the circumferential direction of the sealing sleeve, and the plurality of oil through holes 14 are connected with the corresponding oil inlet ring groove 11; the end of the sealing cover 5 is abutted against the ring plate and sealed by the sealing ring 4, and an expansion ring second lubricating oil leakage collecting chamber is formed between the sealing cover 5 and the partition plate 13, and the expansion ring second lubricating oil leakage collecting chamber is connected with the expansion ring second lubricating oil outlet hole 16; an expansion ring first lubricating oil leakage collecting channel is formed between the sealing ring 4 and the partition plate 13, and the expansion ring first lubricating oil leakage collecting channel is connected with the expansion ring first lubricating oil outlet hole 15.
[0019] The lower end of the outer wall of the support sleeve 7 is provided with a mounting hole 17, and the mounting hole 17 is connected to the expansion ring-lubricating oil outlet hole 15, and the mounting hole 17 is inserted with an oil receiving nozzle 6. The inner wall of the support sleeve 7 is provided with an oil inlet groove 21 in its circumferential direction, and the oil inlet groove 21 is connected to the lubricating oil input hole 20, and the oil inlet groove 21 is connected to the plurality of oil through holes 14. The small end of the oil receiving nozzle 6 is interference-fitted into the mounting hole 17 on the support sleeve 7, so that the other end is close to the support frame 2, and the hose is connected to deliver the outflowing lubricating oil to the measuring cup.
[0020] When using this utility model:
[0021] First, fit the oil nozzle 6 into the mounting hole 17 of the support sleeve 7 through interference fit, and then fit the support sleeve 7 to the outside of the sealing sleeve 5 through interference fit, ensuring that the lubricating oil input hole 20 of the support sleeve 7 is aligned with the multiple oil holes 14 of the sealing sleeve 5, and the mounting hole 17 is aligned with the lubricating oil outlet hole 15 of the expansion ring, and then fit the combination of the oil nozzle 6, the support sleeve 7, and the sealing sleeve 5 to the outer diameter of the elastic support positioning plate 3, ensuring that the elastic support positioning plate 3 is in contact with the end surface of the sealing sleeve 5, and at the same time ensuring that the oil outlet end of the oil nozzle 6 is facing downward to facilitate oil collection, and finally use bolts to lock the elastic support positioning plate 3 and the sealing sleeve 5 to each other.
[0022] The lubricating oil input hole 20 is connected to the lubricating oil pump, and the lubricating oil input pressure is adjusted to the working pressure of the expansion ring and maintained. The lubricating oil enters from the lubricating oil input hole 20 and then enters the oil inlet groove 21. When the lubricating oil fills the oil inlet groove 21, it enters the oil inlet ring groove 11 on the elastic support positioning plate 3 through the multiple oil holes 14 on the sealing sleeve 5, and then flows through the gap between the sealing sleeve 5 and the elastic support positioning plate 3 and the two expansion rings, and then flows to the expansion ring one lubricating oil leakage collecting groove 9 and the expansion ring two lubricating oil leakage collecting cavity respectively. Finally, the leaked lubricating oil of the expansion ring one flows out from the lubricating oil outlet hole 15 of the expansion ring one and the oil nozzle to the measuring cup, and the leaked lubricating oil of the expansion ring two flows out from the lubricating oil outlet hole 16 of the expansion ring two to the measuring cup. After the oil flow rate at the oil receiving port is stable, the lubricating oil outflow per unit time is measured with a measuring cup to simulate the working environment of the expansion ring and measure the lubricating oil leakage of the grouped expansion rings.
[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent conditions of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A device for measuring the leakage flow of expansion ring lubricating oil, characterized in that: It comprises a base (1), a support frame (2), an elastic support positioning plate (3), a sealing cover (5), an oil receiving nozzle (6) and a support sleeve (7); the upper end of the base (1) is fixedly connected to the lower end of the vertically arranged support frame (2), the side wall of the upper end of the support frame (2) is fixedly connected to one end of the elastic support positioning plate (3), a partition plate (13) is arranged inside the elastic support positioning plate (3), an expansion ring 1 (18) and an expansion ring 2 (19) are installed on the elastic support positioning plate (3), and the partition plate (13) is located between the expansion ring 1 (18) and the expansion ring 2 (19); the outer sealing ring of the other end of the elastic support positioning plate (3) is sleeved with a sealing cover (5), the outer side of the sealing cover (5) is sleeved with a support sleeve (7), the upper end of the support sleeve (7) is provided with a lubricating oil input hole (20), and the lower end of the support sleeve (7) is plugged with an oil receiving nozzle (6).
2. The device for measuring the leakage flow of expansion ring lubricating oil according to claim 1, characterized in that: The elastic support positioning plate (3) comprises a ring plate and a cylinder body, wherein the ring plate is coaxially fixedly sleeved on the outer side of the cylinder body, and the ring plate and the cylinder body are integrally formed; a sealing groove (8) is provided on the end face of the ring plate, and a sealing ring (4) is installed in the sealing groove (8); an expansion ring first lubricating oil leakage collecting groove (9), an expansion ring first installation groove (10), an oil inlet ring groove (11) and an expansion ring second installation groove (12) are provided on the outer wall of the cylinder body in sequence, and the expansion ring first lubricating oil leakage collecting groove (9) is arranged adjacent to the ring plate; a partition plate (13) is provided on the inner wall of the cylinder body, and the partition plate (13) is located between the expansion ring first installation groove (10) and the expansion ring second installation groove (12).
3. The device for measuring the leakage flow of expansion ring lubricating oil according to claim 2, characterized in that: The outer wall of the sealing cover (5) is provided with an expansion ring first lubricating oil outlet hole (15), an expansion ring second lubricating oil outlet hole (16) and a plurality of oil through holes (14), and the plurality of oil through holes (14) are all connected and arranged corresponding to the oil inlet ring groove (11); the end of the sealing cover (5) is abutted against the ring plate and sealed by the sealing ring (4); an expansion ring second lubricating oil leakage collecting chamber is formed between the sealing cover (5) and the partition plate (13), and the expansion ring second lubricating oil leakage collecting chamber is connected and arranged in communication with the expansion ring second lubricating oil outlet hole (16); an expansion ring first lubricating oil leakage collecting channel is formed between the sealing ring (4) and the partition plate (13), and the expansion ring first lubricating oil leakage collecting channel is connected and arranged in communication with the expansion ring first lubricating oil outlet hole (15).
4. The device for measuring the leakage flow of expansion ring lubricating oil according to claim 3, characterized in that: The lower end of the outer wall of the support sleeve (7) is provided with a mounting hole (17), the mounting hole (17) is connected to the expansion ring-lubricating oil outlet hole (15) correspondingly, an oil receiving nozzle (6) is inserted into the mounting hole (17), and the inner wall of the support sleeve (7) is provided with an oil inlet groove (21), the oil inlet groove (21) is connected to the lubricating oil input hole (20), and the oil inlet groove (21) is connected to the plurality of oil through holes (14) correspondingly.