Elastic force detection device of piston ring

Abstract

The utility model discloses an elastic force detection device for a piston ring. The elastic force detection device comprises a retraction detection position and an expansion detection position located above the retraction detection position, the retraction detection position and the expansion detection position are detection units with the same structure; each detection unit comprises a detection fixing ring; the detection movable ring is arranged on the inner ring of the detection fixed ring; a plurality of groups of detection arms are designed and are hinged with the detection movable ring and the detection fixed ring, the end part of each detection arm is provided with a stand column, the top of each stand column is provided with a baffle block, and the periphery of each stand column is provided with a force sensor; the output end of the detection motor is connected with the detection movable ring, and the detection motor is used for driving the detection movable ring to rotate. According to the utility model, the retraction detection position and the expansion detection position are designed to complete retraction and expansion elastic force detection of the piston ring, the detection motor drives the detection movable ring to rotate, so that the detection arm swings, and then the upright post abuts against the piston ring to complete retraction and expansion detection work of the piston ring.

Description

Technical Field

[0001] The utility model relates to the field of detection, in particular to a device for detecting the elasticity of a piston ring. Background Art

[0002] Piston rings are metal rings that fit into the piston grooves. There are two types of piston rings: compression rings and oil rings. Compression rings seal the combustible mixture in the combustion chamber, while oil rings scrape excess oil from the cylinder.

[0003] The piston ring is a metal elastic ring with a large outward expansion deformation, which is assembled into an annular groove with a corresponding cross section.

[0004] The piston ring with reciprocating and rotating motion relies on the pressure difference of gas or liquid to form a seal between the outer surface of the ring and the cylinder and between the ring and one side of the ring groove.

[0005] Currently, the elasticity test of piston rings basically only involves expanding the piston rings and then testing the retraction force of the piston rings. However, simply testing the retraction force is obviously not comprehensive enough, and the piston rings need to be compressed to test the expansion force of the piston rings.

[0006] Therefore, how to detect the retraction and expansion elasticity of the piston ring is a problem that needs to be solved at present. Utility Model Content

[0007] The purpose of the utility model is to provide a piston ring elastic force detection device to solve the above-mentioned problems existing in the prior art.

[0008] Technical solution: The elastic force detection device of the piston ring includes:

[0009] a retraction detection position, and an expansion detection position located above the retraction detection position;

[0010] The retraction detection position and the expansion detection position are detection units with the same structure, and the detection units include:

[0011] Detection of retaining ring;

[0012] A detection movable ring is arranged on the inner ring of the detection fixed ring;

[0013] The detection arm is designed in multiple groups and is hinged with the detection movable ring and the detection fixed ring. The end of the detection arm is provided with a column, the top of the column is provided with a stopper, and the periphery of the column is provided with a force sensor;

[0014] The detection motor, the output end of the detection motor is connected to the detection movable ring, and is connected through a designed connecting frame to drive the detection movable ring to rotate.

[0015] The utility model completes the retraction and expansion elastic force detection of the piston ring by designing a retraction detection position and an expansion detection position. The detection movable ring is driven to rotate by the detection motor, so that the detection arm swings, and then the column presses against the piston ring to complete the retraction and expansion detection of the piston ring.

[0016] In a further embodiment, the elastic force detection device of the piston ring further includes a table and a positioning mechanism located on the table.

[0017] In a further embodiment, the retraction detection position is designed in plurality;

[0018] The detection motor and the detection fixing ring of the retraction detection position are connected to the table top.

[0019] In a further embodiment, the positioning mechanism includes a frame connected to the table, a moving unit installed on the frame, and a lifting unit connected to the moving unit.

[0020] In a further embodiment, the mobile unit comprises:

[0021] A mobile frame connected to the frame body;

[0022] The moving motor is connected to the moving frame, and the output end of the moving motor is connected to the moving screw;

[0023] The movable slide plate is sleeved on the movable screw rod and slidably matched with the movable frame.

[0024] In a further embodiment, the lifting unit comprises:

[0025] A lifting frame connected to the moving slide;

[0026] A lifting motor is connected to the lifting frame, and an output end thereof is connected to a moving screw rod;

[0027] The lifting slide plate is sleeved on the movable screw rod and slidably matched with the lifting frame.

[0028] In a further embodiment, a fixing bracket is provided on the lifting slide, and the fixing bracket is connected to the detection fixing ring of the expansion detection position;

[0029] The detection motor of the expansion detection position is connected with the lifting slide plate.

[0030] Beneficial effects: The utility model discloses a piston ring elastic force detection device. The utility model completes the retraction and expansion elastic force detection of the piston ring by designing a retraction detection position and an expansion detection position. The detection movable ring is driven to rotate by the detection motor, so that the detection arm swings, and then the column presses against the piston ring to complete the retraction and expansion detection of the piston ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural diagram of the present utility model.

[0032] Figure 2 It is a schematic diagram of the positioning mechanism of the present utility model.

[0033] Figure 3 It is a structural schematic diagram of the detection unit of the present utility model.

[0034] The accompanying drawings are:

[0035] 1. Countertop;

[0036] 2. Positioning mechanism; 21. Moving frame; 22. Moving motor; 23. Moving slide; 24. Lifting frame; 25. Lifting motor; 26. Lifting slide; 27. Fixed frame;

[0037] 3. Retraction detection position;

[0038] 4. Expansion detection position; 41. Detection fixed ring; 42. Detection movable ring; 43. Detection arm; 44. Column; 45. Stop block; 46. Connecting frame; 47. Detection motor. DETAILED DESCRIPTION

[0039] The present application relates to an elastic force detection device for a piston ring, which will be explained in detail below through specific implementation methods.

[0040] When the piston ring is compressed, the piston ring's own rigid tension affects it and causes it to rebound. At this time, the expansion elastic force of the piston ring can be tested.

[0041] When the piston ring expands, it is affected by its own rigid tension and retracts. At this time, the retraction elastic force of the piston ring can be tested.

[0042] The elastic force detection device of the piston ring comprises:

[0043] a retraction detection position 3, and an expansion detection position 4 located above the retraction detection position 3;

[0044] The retraction detection position 3 and the expansion detection position 4 are detection units with the same structure, and the detection units include:

[0045] Detection fixing ring 41;

[0046] The detection movable ring 42 is arranged on the inner ring of the detection fixed ring 41;

[0047] The detection arms 43 are designed in multiple groups and are hinged to the detection movable ring 42 and the detection fixed ring 41. The ends of the detection arms 43 are provided with upright posts 44, the tops of the upright posts 44 are provided with blocks 45, and the periphery of the upright posts 44 are provided with force sensors;

[0048] The piston ring is dislocated by designing the stopper 45;

[0049] The detection motor 47 has an output end connected to the detection movable ring 42 and is connected through a designed connecting frame 46 to drive the detection movable ring 42 to rotate.

[0050] The utility model completes the retraction and expansion elastic force detection of the piston ring by designing the retraction detection position 3 and the expansion detection position 4. The detection motor 47 drives the detection movable ring 42 to rotate, causing the detection arm 43 to swing, and then the column 44 presses against the piston ring to complete the retraction and expansion detection of the piston ring.

[0051] The piston ring elastic force detection device further includes a table 1 and a positioning mechanism 2 located on the table 1 .

[0052] The retraction detection position 3 is designed to be multiple;

[0053] The detection motor 47 and the detection fixing ring 41 of the retracted detection position 3 are connected to the table 1 .

[0054] The positioning mechanism 2 includes a frame connected to the table 1, a moving unit installed on the frame, and a lifting unit connected to the moving unit.

[0055] The mobile unit comprises:

[0056] A mobile frame 21 connected to the frame;

[0057] The moving motor 22 is connected to the moving frame 21, and the output end thereof is connected to the moving screw;

[0058] The movable slide plate 23 is sleeved on the movable screw rod and slidably matched with the movable frame 21 .

[0059] The lifting unit comprises:

[0060] A lifting frame 24 is connected to the movable slide 23;

[0061] The lifting motor 25 is connected to the lifting frame 24, and its output end is connected to the moving screw;

[0062] The lifting slide plate 26 is sleeved on the movable screw rod and slidably cooperates with the lifting frame 24 .

[0063] A fixing frame 27 is provided on the lifting slide 26, and the fixing frame 27 is connected to the detection fixing ring 41 of the expansion detection position 4;

[0064] The detection motor 47 of the expansion detection position 4 is connected to the lifting slide 26.

[0065] Working principle description: During testing, the piston ring is placed on the testing arm 43. At this time, the column 44 is located inside the piston ring. During testing, the testing motor 47 drives the testing movable ring 42 to rotate, thereby causing the testing arm 43 to swing. When multiple sets of testing arms 43 swing, the column 44 presses against the piston ring to expand outward. At this time, the piston ring is affected by its own rigidity and retracts. By reading the value of the force sensor, the retraction elastic force of the piston ring is obtained. After the test is completed, the testing motor 47 drives the testing movable ring 42 to reset, and the column 44 releases the low contact with the piston ring. At this time, the piston ring is placed on the testing arm 43, waiting for the expansion testing position 4 for testing;

[0066] When detecting the expansion elastic force of the piston ring, the moving motor 22 drives the moving screw to rotate, driving the moving slide 23 to slide, and then the lifting motor 25 drives the lifting screw to rotate, causing the lifting slide 26 to move, thereby driving the expansion detection position 4 to adjust to the predetermined position;

[0067] During the expansion detection position 4 detection, the column 44 is located on the outer ring of the piston ring. The detection motor 47 drives the detection movable ring 42 to rotate, so that the column 44 presses against the piston ring and contracts inward. At this time, the piston ring is affected by its own rigidity and expands. By reading the value of the force sensor, the expansion elastic force of the piston ring is known, and the detection work is completed.

[0068] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. The piston ring elastic force detection device includes: a retraction detection position (3), and an expansion detection position (4) located above the retraction detection position (3); It is characterized in that the retraction detection position (3) and the expansion detection position (4) are detection units with the same structure, and the detection units include: Detection fixing ring (41); A detection movable ring (42) is arranged on the inner ring of the detection fixed ring (41); The detection arm (43) is designed in multiple groups and is hinged to the detection movable ring (42) and the detection fixed ring (41). The end of the detection arm (43) is provided with a column (44), the top of the column (44) is provided with a stopper (45), and the periphery of the column (44) is provided with a force sensor; A detection motor (47) is provided, wherein the output end of the detection motor (47) is connected to the detection movable ring (42) and is used to drive the detection movable ring (42) to rotate.

2. The piston ring elastic force detection device according to claim 1, characterized in that: It also includes a table top (1) and a positioning mechanism (2) located on the table top (1).

3. The piston ring elastic force detection device according to claim 2, characterized in that: The retraction detection position (3) is designed to be multiple; The detection motor (47) and the detection fixing ring (41) of the retraction detection position (3) are connected to the table (1).

4. The piston ring elastic force detection device according to claim 2, characterized in that: The positioning mechanism (2) comprises a frame connected to the table (1), a moving unit installed on the frame, and a lifting unit connected to the moving unit.

5. The piston ring elastic force detection device according to claim 4, characterized in that: The mobile unit comprises: A movable frame (21) connected to the frame body; A moving motor (22) is connected to the moving frame (21), and an output end thereof is connected to a moving screw rod; The movable slide plate (23) is sleeved on the movable screw rod and is slidably matched with the movable frame (21).

6. The piston ring elastic force detection device according to claim 4, characterized in that: The lifting unit comprises: A lifting frame (24) connected to the movable slide (23); A lifting motor (25) is connected to the lifting frame (24), and an output end thereof is connected to a moving screw rod; The lifting slide plate (26) is sleeved on the movable screw rod and is slidably matched with the lifting frame (24).

7. The piston ring elastic force detection device according to claim 6, characterized in that: A fixing frame (27) is provided on the lifting slide (26), and the fixing frame (27) is connected to the detection fixing ring (41) of the expansion detection position (4); The detection motor (47) of the expansion detection position (4) is connected to the lifting slide (26).

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