CN219265681U

CN219265681U - Rebound resilience test fixture for O-shaped sealing ring

Info

Publication number: CN219265681U
Application number: CN202320268594.9U
Authority: CN
Inventors: 张玉龙; 甄学涛; 高洁
Original assignee: Shanghai Xinmi Technology Co ltd
Current assignee: Shanghai Xinmi Technology Co ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-06-27
Anticipated expiration: 2033-02-20

Abstract

The utility model discloses an O-shaped sealing ring rebound resilience testing fixture which comprises a fixing component and a detecting component, wherein the detecting component is fixed through the fixing component, the fixing component comprises at least two fixing plates and a plurality of limiting blocks, the fixing plates are connected through the limiting blocks, the detecting component comprises a force value sensor, a disc sheet force value sensor and a disc sheet, the disc sheet is arranged in a cavity formed between the fixing plates and the limiting blocks, a sealing ring is placed between the disc sheet and the fixing plates, and the rebound resilience of the sealing ring is detected through the force value sensor; through the cooperation of fixed subassembly and detection component, realize the simulation to sealing washer service condition, with fixed subassembly again, detection component and sealing washer are whole to be put into under the high temperature environment and detect, and after the sealing washer thermal expansion, the numerical value transmission of the resilience force that the force value sensor will detect to the force value display, can audio-visual observation sealing washer's resilience force change to better understanding different sealing washer's resilience force size under high temperature.

Description

Rebound resilience test fixture for O-shaped sealing ring

Technical Field

The utility model relates to the technical field of sealing ring detection devices, in particular to an O-shaped sealing ring rebound resilience test fixture.

Background

In a sealing system, the O-ring usually needs to be pressed by a rigid component to complete a sealing function, so that the O-ring is often placed between two rigid components, the sealing of the whole system is realized through the rubber elasticity of the O-ring, and the rebound resilience of the O-ring is important data for measuring the sealing performance of the O-ring, so that the rebound resilience needs to be measured to know whether the sealing ring is sufficiently sealed.

The conventional test method usually uses an impact head to impact vulcanized rubber to detect the recovery height of an impact object, but the test device limits the use scene of the test device due to the large volume, and can only test the rebound resilience performance of the O-shaped sealing ring in the room temperature state, but in the fields of aviation, liquid crystal, semiconductors and the like, the rubber sealing ring is usually applied to the high temperature environment (more than room temperature of 20 ℃), and the rebound resilience performance of the O-shaped sealing ring is different from that of the room temperature environment at more than 40 ℃, so that the rebound resilience performance of the O-shaped sealing ring in the high temperature environment cannot be accurately measured by the conventional test method, and the sealing performance of the O-shaped sealing ring in the high temperature environment cannot be known.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a rebound resilience testing clamp for an O-shaped sealing ring.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the device comprises a fixing component and a detection component, wherein the detection component is fixed through the fixing component;

the fixing assembly comprises at least two fixing plates and a plurality of limiting blocks, and the fixing plates are connected through the limiting blocks;

the detection assembly comprises a force value sensor and a disc sheet, and the force value sensor and the disc sheet are arranged in a cavity formed between the fixed plate and the limiting block;

and a sealing ring is arranged between the disc sheet and the fixed plate, and the resilience force of the sealing ring is detected by the force value sensor.

As a further description of the above technical solution: the detection value of the force value sensor is directly displayed through a force value display, and the force value sensor is connected with the force value display through a high-temperature-resistant sensing cable.

As a further description of the above technical solution: the fixed plate is provided with a plurality of through holes, and the through holes are used for connecting the limiting block and the force value sensor.

As a further description of the above technical solution: the fixed plate comprises an upper plate and a lower plate, and the sealing ring is arranged between the disc sheet and the lower plate.

As a further description of the above technical solution: the upper end of the force value sensor is fixed with the upper plate through an adjusting bolt, and the adjusting bolt penetrates through the through hole.

As a further description of the above technical solution: the two ends of the limiting block are connected with the fixing plate through fixing bolts, and the fixing bolts penetrate through the through holes.

As a further description of the above technical solution: the diameter of the disc sheet is smaller than that of the cavity, and the force value sensor and the fixed plate share the same axis.

As a further description of the above technical solution: the high-temperature-resistant sensing cable is connected with the force value display arranged outside the cavity through a gap between the limiting blocks.

As a further description of the above technical solution: the limiting block is provided with a connecting channel, the connecting channel and the limiting block share the same axis, and the fixing bolt is fixed through the connecting channel.

The utility model has the following beneficial effects:

according to the utility model, the cavity formed by the fixing component formed by the fixing plate and the limiting block enables the detecting component formed by the force value sensor and the disc sheet to be attached to the sealing ring so as to simulate the compressed use environment of the sealing ring, thereby realizing the measurement of the resilience force generated by the thermal expansion of the sealing ring in a high-temperature environment.

Drawings

FIG. 1 is a front view of an O-ring resilience testing fixture according to the present utility model;

FIG. 2 is a schematic view of the upper and lower plates of FIG. 1;

fig. 3 is a schematic diagram of the force sensor of fig. 1.

Legend description:

the device comprises an upper plate 1, an adjusting bolt 2, a force value sensor 3, a limiting block 4, a disc sheet 5, a sealing ring 6, a lower plate 7, a high-temperature resistant sensing cable 8, a force value display 9 and a fixing bolt 10.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the device comprises a fixing component and a detecting component, wherein the detecting component is fixed through the fixing component, the fixing component comprises at least two fixing plates and a plurality of limiting blocks 4, the fixing plates are connected through the limiting blocks 4, the detecting component comprises a force value sensor 3 and a disc sheet 5, the force value sensor 3 and the disc sheet 5 are arranged in a cavity formed between the fixing plates and the limiting blocks, a sealing ring 6 is placed between the disc sheet 5 and the fixing plates, and the rebound force of the sealing ring 6 is detected through the force value sensor 3; through the cooperation of fixed subassembly and detection component, realize the simulation to sealing washer 6 service condition, with fixed subassembly again, detection component and sealing washer 6 wholly put into under the high temperature environment and detect, after sealing washer 6 thermal expansion, the numerical value transmission of the resilience force that the force value sensor 3 will detect to the force value display 9 for the staff can audio-visual change of observing the resilience force of sealing washer 6, and is more convenient, thereby better understanding the resilience force size of different sealing washer 6 under the high temperature.

Offer a plurality of through-holes on the fixed plate, the through-hole is used for connecting stopper 4 and force value sensor 3, the both ends of stopper 4 are connected with the fixed plate through fixing bolt 10, fixing bolt 10 runs through the through-hole, connecting channel has been seted up to stopper 4, connecting channel and stopper 4 share the same axis, fixing bolt 10 passes through connecting channel and realizes fixing, the fixed plate contains upper plate 1 and hypoplastron 7, sealing washer 6 sets up between disc thin slice 5 and hypoplastron 7, force value sensor 3's upper end passes through adjusting bolt 2 and upper plate 1 to be fixed, adjusting bolt 2 runs through the through-hole, realize the equipment back through fixing bolt 10 between fixed plate and the stopper 4, be connected detection subassembly and fixed subassembly again, after the connection is accomplished and is formed the detection anchor clamps is whole, again put sealing washer 6 and accomplish the centre gripping to sealing washer 6, after the sealing washer 6 is placed, make anchor clamps laminating with sealing washer 6 through rotatory adjusting bolt 2, in order to accomplish the simulation to sealing washer 6 sealing state, carry out high temperature detection again, in the resilience of sealing washer 6 of sealing state under the high temperature environment is measured to be more accurate.

The detection value of the force value sensor 3 is directly displayed through the force value display 9, the force value sensor 3 and the force value display 9 are connected through the high temperature resistant sensing cable 8, the high temperature resistant sensing cable 8 can ensure that the measured force value can be transmitted to the force value display 9 in a high temperature environment, and data reading and recording are completed; the high temperature resistant sensing cable 8 passes through the clearance connection between the stopper 4 and sets up the external force value display 9 of cavity, when detecting, force value display 9 places outside the oven through high temperature resistant sensing cable 8, the diameter of disc thin slice 5 is less than the diameter of cavity, the cross-sectional area of force value sensor 3 is less than the cross-sectional area of disc thin slice 5 for the detection component can accomplish fixedly through fixed subassembly, force value sensor 3 and fixed plate sharing same axis (it is, what need be to say, force value sensor 3 and force value display 9's theory of operation is current mature technique, and this scheme is not improving it, therefore its theory of operation does not carry out the description again).

Working principle: after the sealing ring 6 is fixed through the fixing component and the detecting component, the force value sensor 3 is adjusted through the nuts of the rotating adjusting bolts 2, so that the force value sensor 3, the disc sheet 5 and the sealing ring 6 are slightly attached to the upper plate 1 and the lower plate 7 (the force value of the sensor is smaller than 0.5N at the moment), the service environment of the sealing ring 6 is simulated, the whole is placed into an oven at 60-100 ℃ for 10-15min, the force value display 9 is arranged outside the oven, when the sealing ring is heated, expands and rebounds, the disc sheet 5 is jacked, the force value sensor 3 is stressed by the disc sheet 5 after jacking, and the generated force value is read and recorded through the force value display 9.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides an O type sealing washer resilience test fixture which characterized in that: the device comprises a fixing component and a detection component, wherein the detection component is fixed through the fixing component;

the fixing assembly comprises at least two fixing plates and a plurality of limiting blocks (4), and the fixing plates are connected through the limiting blocks (4);

the detection assembly comprises a force value sensor (3) and a disc sheet (5), wherein the force value sensor (3) and the disc sheet (5) are arranged in a cavity formed between the fixed plate and the limiting block;

and a sealing ring (6) is arranged between the disc sheet (5) and the fixed plate, and the resilience force of the sealing ring (6) is detected by the force value sensor (3).

2. The O-ring seal resilience testing fixture according to claim 1, wherein: the detection value of the force value sensor (3) is directly displayed through a force value display (9), and the force value sensor (3) is connected with the force value display (9) through a high-temperature-resistant sensing cable (8).

3. The O-ring seal resilience testing fixture according to claim 1, wherein: the fixed plate is provided with a plurality of through holes, and the through holes are used for connecting the limiting block (4) and the force value sensor (3).

4. An O-ring seal resilience testing fixture according to claim 3, wherein: the fixing plate comprises an upper plate (1) and a lower plate (7), and the sealing ring (6) is arranged between the disc sheet (5) and the lower plate (7).

5. The O-ring seal resilience testing fixture according to claim 4, wherein: the upper end of the force value sensor (3) is fixed with the upper plate (1) through an adjusting bolt (2), and the adjusting bolt (2) penetrates through the through hole.

6. An O-ring seal resilience testing fixture according to claim 3, wherein: the two ends of the limiting block (4) are connected with the fixing plate through fixing bolts (10), and the fixing bolts (10) penetrate through the through holes.

7. The O-ring seal resilience testing fixture according to claim 1, wherein: the diameter of the disc sheet (5) is smaller than that of the cavity, and the force value sensor (3) and the fixed plate share the same axis.

8. The O-ring resilience testing fixture according to claim 2, wherein: the high-temperature-resistant sensing cable (8) is connected with the force value display (9) arranged outside the cavity through a gap between the limiting blocks (4).

9. The O-ring seal resilience testing fixture according to claim 6, wherein: the limiting block (4) is provided with a connecting channel, the connecting channel and the limiting block (4) share the same axis, and the fixing bolt (10) is fixed through the connecting channel.