CN218725033U - Sealing performance test device for sealing ring piston - Google Patents
Sealing performance test device for sealing ring piston Download PDFInfo
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- CN218725033U CN218725033U CN202222994238.3U CN202222994238U CN218725033U CN 218725033 U CN218725033 U CN 218725033U CN 202222994238 U CN202222994238 U CN 202222994238U CN 218725033 U CN218725033 U CN 218725033U
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Abstract
The utility model provides a sealing performance test device for a sealing ring piston, which comprises a test cylinder assembly and a cylinder body; the test cylinder assembly penetrates through the cylinder body; the test cylinder assembly comprises a first cylinder assembly and a second cylinder assembly, and one end of the first cylinder assembly is connected with one end of the second cylinder assembly; the first cylinder assembly comprises a first piston rod, a gland, a first piston unit and a first cylinder; the first cylinder body is arranged on the outer side of the first piston rod, the gland is arranged at the first end of the first piston rod, and the gland is connected with the first end of the first cylinder body; the second end of the first piston rod is connected to the first end of the second piston rod via a first piston unit. The utility model discloses can simulate the work load among the rubber circle actual work, the dual seal design of its left and right sides can carry out the ageing life test to multinomial rubber circle simultaneously, can not only effectively improve test efficiency, can also reduce test cost.
Description
Technical Field
The utility model belongs to the technical field of electromechanical reliability and life-span test of equipping, in particular to sealing washer piston sealing performance test device.
Background
Rubber materials are common sealing materials in sealing elements, failure of sealing rings in the sealing elements or gradual attenuation of functions of the sealing rings are often main factors causing oil leakage of a hydraulic system, and the design, the pre-compression rate, the medium pressure and the like of the sealing elements can be reasons for failure of the sealing elements. And failure of the seal will result in a substantial reduction in the performance and service life of the overall product, or even irreparable consequences.
The rubber ring is used as an extrusion type sealing element and widely applied to electromechanical equipment such as a hydraulic system, an air pressure regulating system and the like, when the rubber ring is used, the rubber ring is arranged in a sealing groove at a moving shaft end or a standing shaft end, the rubber ring can be extruded by a matching cylinder body in the working process, and the rubber ring is deformed under the action of pressure stress caused by extrusion. After long-time use, the rubber ring can generate an aging phenomenon under the combined action of the use environment and stress, the sealing performance of the rubber ring can be continuously degraded, and the rubber ring gradually has the aging problems of hard surface, reduced elastic performance, gradually weakened deformation recovery capability and the like along with the continuous increase of the deformation degree until the sealing is failed. Therefore, the rubber ring needs to be subjected to an aging life test before being put into use to evaluate the service life and reliability of the rubber ring. Therefore, the test device and the correct test method which are close to the actual situation as far as possible are selected in the rubber ring aging life test process, the test device and the correct test method are crucial to the actual installation and use of the simulated rubber ring and the final accurate aging life assessment, and the test device and the test method can provide support for the effective implementation of the rubber ring aging life test and further provide data support for the life prediction of the sealing ring.
However, in the prior art, the service life test tool for rubber ring products has the defects of long test period and frequent disassembly, so that accurate test data cannot be provided for predicting the service life and reliability of the rubber ring, and specifically, the test tool in the service life test of the existing rubber ring has the following problems:
(1) The test tool cannot effectively simulate the environmental load (including corrosion of liquid medium, action of medium pressure, temperature accelerated aging and the like) on the rubber ring in actual work; (2) The rubber ring is arranged in the sealing groove, a special tool is needed, and the rubber ring is easy to cause artificial damage, so that the test efficiency is seriously influenced; (3) The test tool is inconvenient to disassemble, and only the test of a single rubber ring can be realized; (4) The repeated disassembly causes the abrasion of the test tool, and the precision of the sealing structure is influenced.
Therefore, it is necessary to design a sealing performance test device for a sealing ring piston to solve the above problems.
SUMMERY OF THE UTILITY MODEL
To the prior art defect that mentions in the above-mentioned background art, the utility model provides a sealing washer piston sealing performance test device thereby realizes the quick installation to the sealing washer through the cooperation of first piston and second piston for test it when the sealing washer is in intact state, thereby obtain comparatively accurate experimental test data, carry out the accurate prediction to the life-span and the reliability of sealing washer. Simultaneously, the device can meet the test environment of most piston sealing performance tests through the assembly of the first cylinder assembly, the cylinder body, the second cylinder assembly and the piston assembly, and can also test the sealing performance of the two sealing ring pistons on two sides of the cylinder body simultaneously, so that the test efficiency can be effectively improved.
The utility model adopts the technical proposal that: a sealing performance test device for a sealing ring piston comprises a test cylinder assembly and a cylinder body; the test cylinder assembly penetrates through the cylinder body;
the test barrel assembly comprises a first barrel assembly and a second barrel assembly, and one end of the first barrel assembly is connected with one end of the second barrel assembly;
the first cylinder assembly comprises a first piston rod, a gland, a first piston unit and a first cylinder; the second cylinder assembly comprises a second piston rod, an end cover, a second piston unit and a second cylinder; the first cylinder is arranged on the outer side of the first piston rod, the gland is arranged at the first end of the first piston rod, and the gland is connected with the first end of the first cylinder; the second end of the first piston rod is connected with the first end of the second piston rod through the first piston unit; the second cylinder is arranged at the outer side of the second end of the second piston rod, the end cover is further arranged at the second end of the second piston rod, the end cover is connected with the second end of the second cylinder, and the second piston unit is arranged at the second end of the second piston rod;
the first piston unit and the second piston unit are of the same structure and respectively comprise a first piston and a second piston which are connected with each other, the first piston is of a cylindrical structure with a double-layer bulge on the side wall, the second piston is of a cylindrical structure with an inner recess, and a sealing groove is formed in the joint of the first piston and the second piston.
Furthermore, a plurality of mounting holes and bolt connection holes have been seted up on the lateral wall of cylinder body, the mounting hole is used for installing high-pressure gas's admission valve, temperature sensor and pressure sensor, bolt connection hole is used for connecting test bench and second barrel subassembly.
Further, a through hole is formed in the side wall of the cylinder body, and the diameters of the first piston unit and the second piston unit are smaller than the diameter of the through hole.
Furthermore, the end parts of the first cylinder assembly and the second cylinder assembly are provided with oil dripping holes.
Furthermore, a through type cavity is formed inside the first cylinder, the cylinder body and the second cylinder, and the first piston rod and the second piston rod can move in the cavity in a translation mode.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) The utility model discloses a mutually supporting of test section of thick bamboo subassembly and cylinder body can carry out accurate sealing washer life prediction experiment, and operating procedure is simple, can not influence the precision of data because of can't accomplish complicated experiment to can obtain accurate experimental test data, carry out accurate prediction to the life-span and the reliability of sealing washer.
(2) The utility model discloses a sealing washer piston sealing performance test device, this device is through setting up first piston and second piston for this device can carry out the test of a plurality of sealing washers, and this device simple structure is convenient for process moreover, and the commonality is strong, can satisfy the life-span prediction and the reliability prediction test of multiple sealing washer.
(3) The utility model adopts the cooperation of the piston assembly of the separated sealing element, and the assembly and disassembly difficulty of the rubber sealing ring is obviously reduced through the cooperation of the first piston and the second piston; and the utility model discloses a thereby combination first barrel subassembly, cylinder body, second barrel subassembly and piston assembly satisfy most experimental environment, effectively improve test efficiency, reduce test cost.
Drawings
Fig. 1 is a schematic view of the overall structure of the sealing performance test device for the sealing ring piston of the present invention;
fig. 2 is a schematic view of a connection state of a first piston rod and a second piston rod of the sealing ring piston sealing performance test device of the present invention;
fig. 3 is a schematic view of the overall structure of the first piston unit and the second piston unit of the sealing ring piston sealing performance test device of the present invention;
fig. 4 is an explosion diagram of the first piston unit and the second piston unit of the sealing ring piston sealing performance test device of the present invention.
Some of the drawings are illustrated below:
1-cylinder body, 2-first piston rod, 3-gland, 4-first piston unit, 5-first cylinder body, 6-flange,
7-a first connecting piece, 8-a second piston rod, 9-an end cover, 10-a second piston unit, 11-a second cylinder, 12-a second connecting piece, 13-a first piston, 14-a second piston and 15-a sealing groove.
Detailed Description
Exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The utility model provides a sealing washer piston sealing performance test device, as shown in fig. 1-4, including experimental section of thick bamboo subassembly and cylinder body 1, experimental section of thick bamboo subassembly runs through cylinder body 1. The test cylinder assembly comprises a first cylinder assembly and a second cylinder assembly, and one end of the first cylinder assembly is connected with one end of the second cylinder assembly.
The first cylinder assembly comprises a first piston rod 2, a gland 3, a first piston unit 4 and a first cylinder 5; the first cylinder 5 is arranged at the outer side of the first piston rod 2, the gland 3 is arranged at the first end of the first piston rod 2, the gland 3 is connected with the first end of the first cylinder 5, and the second end of the first piston rod 2 is connected with the first end of the second piston rod 8 through the first piston unit 4.
The second cylinder component comprises a second piston rod 8, an end cover 9, a second piston unit 10 and a second cylinder 11, the second cylinder 11 is arranged on the outer side of the second end of the second piston rod 8, the end cover 9 is further arranged at the second end of the second piston rod 8, the end cover 9 is connected with the second end of the second cylinder 11, and the second piston unit 10 is arranged at the second end of the second piston rod 8.
Set up the through-hole that the size equals on the 1 relative two sides lateral wall of cylinder body, the through-hole includes first through-hole and second through-hole, and the second end of first barrel 5 passes through flange 6 to be connected with first through-hole, and flange 6 and second through-hole connection are passed through to the first end of second barrel 11.
A plurality of mounting holes are formed in the side wall of the cylinder body 1 and used for mounting a high-pressure gas inlet valve, a temperature sensor and a pressure sensor, and bolt connecting holes connected with the test bed and the second cylinder body assembly are further formed in the side wall of the cylinder body 1.
The diameters of the first piston unit 4 and the second piston unit 10 are smaller than the diameter of the through hole.
The end parts of the first cylinder assembly and the second cylinder assembly are provided with oil dripping holes.
The through type cavity is formed by the first cylinder body 5, the cylinder body 1 and the second cylinder body 11, and the first piston rod 2 and the second piston rod 8 can translate in the cavity.
The using method comprises the following steps:
s1, mounting and horizontally placing a cylinder body 1 on a test bed through a positioning hole in the bottom of the cylinder body, and fixing the cylinder body 1 and the test bed through a fastening bolt;
s2, mounting the high-pressure gas ventilation valve, the temperature sensor and the pressure sensor at a reserved hole position of the cylinder body 1;
s3, connecting the gland 3 with the first barrel 5 through a reserved threaded structure;
s4, connecting the first piston rod 2 with the second piston rod 8 through the first connecting piece 7, connecting the first piston unit 4 with the first piston rod 2, connecting the first end of the second piston unit 10 with the second piston rod 8, and connecting the second connecting piece 12 with the second end of the second piston unit 10;
s5, installing rubber sealing rings for testing in the sealing grooves 15 of the first piston unit 4 and the second piston unit 10;
s6, injecting liquid into the cylinder body 1, starting a test experiment, continuously pushing and pulling the first piston rod 2 in the test process, and pulling the second piston rod 8 by the first piston rod 2, so that the first piston unit 4 and the second piston unit 10 are operated, the rubber ring at the sealing groove 15 is respectively in contact friction with the inner side of the first cylinder body 5 and the inner side of the second cylinder body 11, and finally whether the oil leakage situation at the oil dripping hole is detected to finish the test on the rubber ring.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (5)
1. A sealing performance test device for a sealing ring piston is characterized by comprising a test cylinder assembly and a cylinder body; the test cylinder assembly penetrates through the cylinder body;
the test cylinder assembly comprises a first cylinder assembly and a second cylinder assembly, and one end of the first cylinder assembly is connected with one end of the second cylinder assembly;
the first cylinder assembly comprises a first piston rod, a gland, a first piston unit and a first cylinder; the second cylinder assembly comprises a second piston rod, an end cover, a second piston unit and a second cylinder; the first cylinder is arranged on the outer side of the first piston rod, the gland is arranged at the first end of the first piston rod, and the gland is connected with the first end of the first cylinder; the second end of the first piston rod is connected with the first end of the second piston rod through the first piston unit; the second cylinder is arranged at the outer side of the second end of the second piston rod, the end cover is further arranged at the second end of the second piston rod and connected with the second end of the second cylinder, and the second piston unit is arranged at the second end of the second piston rod;
the first piston unit and the second piston unit are of the same structure and respectively comprise a first piston and a second piston which are connected with each other, the first piston is of a cylindrical structure with a double-layer bulge on the side wall, the second piston is of a cylindrical structure with an inner recess, and a sealing groove is formed in the joint of the first piston and the second piston.
2. The sealing ring piston sealing performance test device according to claim 1, wherein a plurality of mounting holes and bolt connecting holes are formed in the side wall of the cylinder body, the mounting holes are used for mounting an air inlet valve, a temperature sensor and a pressure sensor of high-pressure air, and the bolt connecting holes are used for connecting the test bed and the second cylinder assembly.
3. The sealing ring piston sealing performance test device as claimed in claim 1, wherein a through hole is formed in the side wall of the cylinder body, and the diameters of the first piston unit and the second piston unit are smaller than the diameter of the through hole.
4. The sealing ring piston sealing performance test device as claimed in claim 2, wherein oil dripping holes are formed in the end portions of the first cylinder assembly and the second cylinder assembly.
5. The sealing ring piston sealing performance test device according to claim 1, wherein the first cylinder, the cylinder body and the second cylinder form a through cavity, and the first piston rod and the second piston rod can translate in the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222994238.3U CN218725033U (en) | 2022-11-10 | 2022-11-10 | Sealing performance test device for sealing ring piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222994238.3U CN218725033U (en) | 2022-11-10 | 2022-11-10 | Sealing performance test device for sealing ring piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218725033U true CN218725033U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222994238.3U Active CN218725033U (en) | 2022-11-10 | 2022-11-10 | Sealing performance test device for sealing ring piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218725033U (en) |
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2022
- 2022-11-10 CN CN202222994238.3U patent/CN218725033U/en active Active
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