CN211740889U - Rubber compression deformation limiting device - Google Patents
Rubber compression deformation limiting device Download PDFInfo
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- CN211740889U CN211740889U CN201922434017.9U CN201922434017U CN211740889U CN 211740889 U CN211740889 U CN 211740889U CN 201922434017 U CN201922434017 U CN 201922434017U CN 211740889 U CN211740889 U CN 211740889U
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- movable plate
- compression deformation
- bottom plate
- rubber
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Abstract
The invention relates to the technical field of rubber material deformation measurement, and particularly discloses a rubber compression deformation limiting device. A rubber compression deformation limiting device comprises a panel, a movable plate and a bottom plate, wherein the panel and the bottom plate are of flat plate structures which are arranged in parallel up and down, the panel and the bottom plate are connected through a vertical guide pillar, the movable plate is of a flat plate structure, is sleeved on the guide pillar and can move up and down between the panel and the bottom plate along the guide pillar; the upper end of the movable plate is connected with a hand wheel through a bolt and a nut penetrating through a threaded hole of the panel, the movable plate is driven to move up and down by the rotation of the hand wheel, and pressure is applied to a rubber sample to be measured between the movable plate and the bottom plate; and a depth dial indicator is fixedly arranged on the side surface of the movable plate, and the compression deformation height of the rubber sample to be measured can be measured in real time by using the depth dial indicator. The device can reproduce or simulate the compression deformation state of the rubber sealing element in service on site, and accurately measure the compression deformation capacity of the rubber sealing element in service.
Description
Technical Field
The invention belongs to the technical field of rubber material deformation measurement, and particularly relates to a rubber compression deformation limiting device.
Background
Rubber O-rings are largely used as sealing parts in mechanical equipment and electrical systems which are key important in nuclear power plants, and the rubber O-rings are mainly based on high elasticity and high resilience of rubber materials. The rubber sealing ring is compressed and deformed during use, and the restoring capacity of the sealing ring resisting compression enables the sealing ring to fill the groove, so that the medium is prevented from leaking or transferring through the groove. Therefore, the compression deformation capability of the rubber material is one of the important performance indexes.
At present, the rubber deformation is generally determined according to the specification of vulcanized rubber or thermoplastic rubber compression set determination (GB/T7759) to prepare a sample with a standard height, determine the compression set height of the sample according to the standard compression rate, and then match and select a standard compression device. However, it is difficult to accurately describe the compression deformation capability of the rubber sealing element under the field service condition, and specifically, on one hand, the field service sealing ring product cannot be processed into a sample with a standard height; on the other hand, the compression deformation degree of the sealing ring in service on site is inconsistent with the standard compression rate.
Disclosure of Invention
The invention aims to provide a rubber compression deformation limiting device, which solves the problem of accurately judging the compression deformation capacity of a rubber sealing element in a nuclear power plant in service.
The technical scheme of the invention is as follows: a rubber compression deformation limiting device comprises a panel, a movable plate and a bottom plate, wherein the panel and the bottom plate are of flat plate structures which are arranged in parallel up and down, the panel and the bottom plate are connected through a vertical guide pillar, the movable plate is of a flat plate structure, is sleeved on the guide pillar and can move up and down between the panel and the bottom plate along the guide pillar; the upper end of the movable plate is connected with a hand wheel through a bolt and a nut penetrating through a threaded hole of the panel, the movable plate is driven to move up and down by the rotation of the hand wheel, and pressure is applied to a rubber sample to be measured between the movable plate and the bottom plate; and a depth dial indicator is fixedly arranged on the side surface of the movable plate, and the compression deformation height of the rubber sample to be measured can be measured in real time by using the depth dial indicator.
The panel and the bottom plate are of square flat plate structures with certain thicknesses.
The panel and the bottom plate are fixedly connected through guide posts arranged at four corners.
The panel is provided with a threaded hole, the bolt and the nut penetrate through the threaded hole on the panel and are connected with a hand wheel positioned above the panel, the bolt and the nut on the panel are provided with a locking switch, and the locking switch can limit the movable plate to move up and down.
The side wall of one side of the panel is provided with a bayonet, the side wall of the corresponding side movable plate is provided with a threaded hole, and the depth dial indicator can be fixed on the movable plate through a screw and the dial is matched with the bayonet of the panel.
The stroke between the bottom plate and the movable plate is between 0mm and 30 mm.
The panel, the movable plate and the bottom plate are made of stainless steel materials.
The panel, the movable plate and the bottom plate are of a square flat plate structure with the thickness of 10mm and the length and width of 100 mm.
The invention has the following remarkable effects: the rubber compression deformation limiting device can reproduce or simulate the compression deformation state of the rubber sealing element in service on site, and accurately measure the compression deformation capacity of the rubber sealing element in service.
Drawings
FIG. 1 is a schematic structural view of a rubber compression deformation limiting device according to the present invention;
in the figure: 1. a panel; 2. a movable plate; 3. a base plate; 4. a guide post; 5. a hand wheel; 6. a bolt and a nut; 7. a depth dial gauge; 8. a set screw; 9. and (5) locking the switch.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1, a rubber compression deformation limiting device comprises a panel 1, a movable plate 2, a bottom plate 3, guide pillars 4 and a depth dial indicator 7, wherein the panel 1 and the bottom plate 3 are flat plate structures with certain thickness, for example, the panel 1 or the bottom plate 3 can be a square flat plate structure with the thickness of 10mm and the length and width of 100mm, and the panel 1 and the bottom plate 3 are arranged in parallel up and down and are fixedly connected through cylindrical guide pillars 4 arranged at four corners; the movable plate 2 is a flat plate structure with a certain thickness, four light holes are formed in the movable plate, the positions and the sizes of the light holes are matched with those of the guide pillars 4, and the movable plate 2 is sleeved on the guide pillars 4 and is positioned between the panel 1 and the bottom plate 3; a threaded hole is formed in the center of the panel 1, a bolt and a nut 6 penetrate through the threaded hole in the panel 1 and are connected with the movable plate 2, the upper end of the bolt and the nut 6 is connected with a hand wheel 5 above the panel 1, and the movable plate 2 can be driven to move between the panel 1 and the bottom plate 3 along the guide pillar 4 by rotating the hand wheel 5; a locking switch 9 is sleeved on the bolt nut 6 above the panel 1, and the movable plate 2 can be controlled not to deviate by the locking switch 9; a bayonet is processed on the side surface of one side of the panel 1, a threaded hole is processed on the side wall of the corresponding side movable plate 2, a depth dial indicator 7 can be fixed 8 on the movable plate 2 through a fixing screw, and the dial is matched with the bayonet of the panel; when the movable plate moves up and down, the depth dial indicator 7 can display the compression deformation height in real time; wherein, the precision of the depth dial indicator 7 is one thousandth of a millimeter; the stroke between the bottom plate 3 and the movable plate 2 is 0-30 mm; the panel 1, the movable plate 2 and the bottom plate 3 are made of stainless steel materials;
the rubber compression deformation limiting device provided by the invention has the specific working process that: horizontally placing a rubber sample on a bottom plate 3, opening a locking switch 9, and slowly rotating a hand wheel 5 to enable a movable plate 2 to descend along a guide rail 4; when the movable plate 3 contacts the sample, stopping rotating the hand wheel 5; placing a 7-depth micrometer at the groove of the panel 1, and fixing the 7-depth micrometer by using 8 fixing screws; rotating the 5 hand wheels again, observing the scale change of the 7 depth micrometer, and stopping rotating the 5 hand wheels when the specified scale is reached; finally the locking switch is closed 9.
Claims (8)
1. A rubber compression deformation limiting device is characterized in that: the device comprises a panel (1), a movable plate (2) and a bottom plate (3), wherein the panel (1) and the bottom plate (3) are of flat plate structures which are arranged in parallel up and down and are connected with each other through a vertical guide post (4), and the movable plate (2) is of a flat plate structure and is sleeved on the guide post (4) and can move up and down between the panel (1) and the bottom plate (3) along the guide post (4); the upper end of the movable plate (2) is connected with a hand wheel (5) through a bolt and a nut (6) penetrating through a threaded hole of the panel (1), the movable plate (2) is driven to move up and down by the rotation of the hand wheel (5), and pressure is applied to a rubber sample to be measured between the movable plate (2) and the bottom plate (3); a depth dial indicator (7) is fixedly arranged on the side surface of the movable plate (2), and the compression deformation height of the rubber sample to be measured can be measured in real time by using the depth dial indicator (7).
2. A rubber compression deformation limiting device according to claim 1, wherein: the panel (1) and the bottom plate (3) are of square flat plate structures with certain thicknesses.
3. A rubber compression deformation limiting device according to claim 1, wherein: the panel (1) and the bottom plate (3) are fixedly connected through guide posts (4) arranged at four corners.
4. A rubber compression deformation limiting device according to claim 1, wherein: the panel (1) is provided with a threaded hole, the bolt and nut (6) penetrates through the threaded hole in the panel (1) and is connected with a hand wheel (5) positioned above the panel (1), the bolt and nut (6) on the panel (1) is provided with a locking switch (9), and the locking switch (9) can limit the vertical displacement of the movable plate (2).
5. A rubber compression deformation limiting device according to claim 1, wherein: the side wall of one side of the panel (1) is provided with a bayonet, the side wall of the corresponding side movable plate (2) is provided with a threaded hole, and the depth dial indicator (7) can be fixed on the movable plate (2) through a fixing screw (8) and enables the dial to be matched with the bayonet of the panel (1).
6. A rubber compression deformation limiting device according to any one of claims 1 to 5, wherein: the stroke between the bottom plate (3) and the movable plate (2) is 0-30 mm.
7. A rubber compression deformation limiting device according to any one of claims 1 to 5, wherein: the panel (1), the movable plate (2) and the bottom plate (3) are made of stainless steel materials.
8. A rubber compression deformation limiting device according to any one of claims 1 to 5, wherein: the panel (1), the movable plate (2) and the bottom plate (3) are of a square flat plate structure with the thickness of 10mm and the length and width of 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922434017.9U CN211740889U (en) | 2019-12-30 | 2019-12-30 | Rubber compression deformation limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922434017.9U CN211740889U (en) | 2019-12-30 | 2019-12-30 | Rubber compression deformation limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211740889U true CN211740889U (en) | 2020-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922434017.9U Active CN211740889U (en) | 2019-12-30 | 2019-12-30 | Rubber compression deformation limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211740889U (en) |
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2019
- 2019-12-30 CN CN201922434017.9U patent/CN211740889U/en active Active
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