CN111963686A - Sealing mechanism of underwater resistance measuring device - Google Patents
Sealing mechanism of underwater resistance measuring device Download PDFInfo
- Publication number
- CN111963686A CN111963686A CN202010845170.5A CN202010845170A CN111963686A CN 111963686 A CN111963686 A CN 111963686A CN 202010845170 A CN202010845170 A CN 202010845170A CN 111963686 A CN111963686 A CN 111963686A
- Authority
- CN
- China
- Prior art keywords
- end cover
- sealing mechanism
- test cylinder
- measuring device
- resistance measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 56
- 238000012360 testing method Methods 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 239000011553 magnetic fluid Substances 0.000 abstract description 21
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000011160 research Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a sealing mechanism of an underwater resistance measuring device, which comprises a left end cover of a test cylinder body, wherein a central hole is formed in the left end cover of the test cylinder body, a transmission shaft is arranged in the central hole, a sealing mechanism is arranged in the central hole of the left end cover of the test cylinder body, the sealing mechanism comprises a left pressing end cover, a right pressing end cover and a magnetic fluid sealing device, the left pressing end cover and the right pressing end cover are respectively arranged at the two end parts of the central hole of the left end cover of the test cylinder body, and the magnetic fluid sealing device is sleeved on the transmission shaft; the invention has the beneficial effects that: the sealing mechanism is designed by adopting the magnetic fluid sealing device, so that the durability of the sealing mechanism is improved, and the magnetic fluid sealing device is liquid-tight and has no requirement on the rotating speed of a transmission shaft, so that the universality of the sealing mechanism is enhanced, and the comprehensive performance of the underwater resistance measuring device is improved.
Description
Technical Field
The invention relates to the technical field of underwater resistance reduction friction research, in particular to a sealing mechanism of an underwater resistance measuring device.
Background
In the field of underwater drag reduction friction research, related experiments are generally required to be carried out in a specific test device comprising a water environment, and a part of a transmission mechanism of the device is required to operate in the water environment. Since the transmission is not completely submerged in water, the device needs to be watertight. The existing device sealing measures usually adopt rubber sealing and the like, but the sealing mode is easy to wear and cannot maintain the sealing performance for a long time, so that the current underwater resistance measuring device needs to be improved on the aspect.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a sealing mechanism of an underwater resistance measuring device, which has a reasonable structural design.
The technical scheme of the invention is as follows:
the sealing mechanism of the underwater resistance measuring device comprises a test cylinder body left end cover, wherein a center hole is formed in the test cylinder body left end cover, and a transmission shaft is arranged in the center hole.
The sealing mechanism of the underwater resistance measuring device is characterized in that a left positioning snap spring is arranged at one end, located on the magnetic fluid sealing device, in the center hole of the left end cover of the test cylinder, and a right positioning snap spring is arranged at the other end of the center hole.
The sealing mechanism of the underwater resistance measuring device is characterized in that a left bearing is arranged between the left compression end cover and the left positioning clamp spring, and a right bearing is arranged between the right compression end cover and the right positioning clamp spring.
The sealing mechanism of the underwater resistance measuring device is characterized in that the left compression end cover and the right compression end cover are respectively connected with the left end cover of the test cylinder body through bolts.
The sealing mechanism of the underwater resistance measuring device is characterized in that the left end cover of the test cylinder body is of a T-shaped structure.
The invention has the beneficial effects that: the sealing mechanism is designed by adopting the magnetic fluid sealing device, so that the durability of the sealing mechanism is improved, and the magnetic fluid sealing device is liquid-tight and has no requirement on the rotating speed of a transmission shaft, so that the universality of the sealing mechanism is enhanced, and the comprehensive performance of the underwater resistance measuring device is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1-transmission shaft, 2-left compression end cover, 3-left bearing, 4-left end cover of test cylinder, 5-magnetic fluid sealing device, 6-right bearing, 7-right compression end cover, 8-right positioning snap spring and 9-left positioning snap spring.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, a sealing mechanism of an underwater resistance measuring device comprises a transmission shaft 1, a left compression end cover 2, a left bearing 3, a test cylinder left end cover 4, a magnetic fluid sealing device 5, a right bearing 6, a right compression end cover 7, a right positioning snap spring 8 and a left positioning snap spring 9.
The left end cover 4 of the test cylinder is used as a carrier of the sealing mechanism, and the body of the left end cover is of a T-shaped structure and is designed to be lengthened so as to prevent related components of the sealing mechanism.
And the left compression end cover 2 is connected with the left end cover 4 of the test cylinder body through a bolt, and the transmission shaft 1 penetrates through the middle hole of the test cylinder body. The flange of the left compression end cover 2 is abutted against the left bearing 3 for positioning the left bearing 3. And the right compression end cover 7 is connected with the left end cover 4 of the test cylinder body through a bolt, and the transmission shaft 1 penetrates through the middle hole. The flange of the right pressing end cover 7 is abutted against the right bearing 6 for positioning the right bearing 6.
The positioning clamp spring is embedded in a clamp spring groove in the left end cover 4 of the test cylinder, the left positioning clamp spring 9 is respectively abutted against the left bearing 3 and the magnetic fluid sealing device 5 to position the test cylinder, and the right positioning clamp spring 8 is respectively abutted against the right bearing 6 and the magnetic fluid sealing device 5 to position the test cylinder.
The bearing is sleeved with the left end cover 4 of the test cylinder body and is sleeved with the transmission shaft 1. The left bearing 3 is respectively positioned and fixed through the left compression end cover 2 and the left positioning clamp spring 9, and the right bearing 6 is respectively positioned and fixed through the right compression end cover 7 and the right positioning clamp spring 8.
The magnetic fluid sealing device 5 is sleeved with the left end cover 4 of the test cylinder body, the transmission shaft 1 penetrates through the magnetic fluid sealing device 5, and the magnetic fluid in the magnetic fluid sealing device 5 surrounds the transmission shaft 1 under the action of an internal magnetic field to form a plurality of liquid O-shaped rings, so that the aim of waterproof sealing is fulfilled.
The working principle of the sealing mechanism of the underwater resistance measuring device is as follows: the magnetic fluid sealing device is fixed inside the left end cover of the test cylinder through the positioning snap spring, and the bearing and the transmission shaft are sleeved and fixed inside the left end cover of the test cylinder through the compressed end cover and the positioning snap spring. When the test cylinder of the underwater resistance measuring device is filled with water, the transmission shaft can normally run under the support of the bearing, and the water in the test cylinder cannot leak under the sealing action of the magnetic fluid sealing device, so that the sealing purpose of the underwater resistance measuring device is achieved.
The installation process comprises the following steps:
1) firstly, the magnetic fluid sealing device 5 is sleeved into a preset position in the left end cover 4 of the test cylinder, and then the left positioning clamp spring 9 and the right positioning clamp spring 8 are embedded into a clamp spring groove of the left end cover 4 of the test cylinder, so that the magnetic fluid sealing device 5 is fixed.
2) The transmission shaft 1 is sleeved into the magnetic fluid sealing device 5, the left bearing 3 and the right bearing 6 are respectively installed on the transmission shaft 1, and then the left pressing end cover 2 and the right pressing end cover 7 are installed to complete the installation work of the transmission shaft 1, the left bearing 3 and the right bearing 6.
3) Water is injected into the test cylinder for testing, the transmission shaft 1 can normally run under the supporting action of the left bearing 3 and the right bearing 6, the water in the test cylinder is sealed by the magnetic fluid sealing device 5 and cannot leak, and the related test of underwater resistance measurement can be normally completed.
The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but includes equivalent technical means as would be recognized by those skilled in the art based on the inventive concept.
Claims (5)
1. The sealing mechanism of the underwater resistance measuring device comprises a test cylinder body left end cover (4), wherein a center hole is formed in the test cylinder body left end cover (4), and a transmission shaft (1) is arranged in the center hole.
2. The sealing mechanism of the underwater resistance measuring device according to claim 1, wherein a left positioning snap spring (9) is arranged at one end of the magnetofluid sealing device (5) in the central hole of the left end cover (4) of the test cylinder, and a right positioning snap spring (8) is arranged at the other end of the magnetofluid sealing device.
3. The sealing mechanism of the underwater resistance measuring device according to claim 2, wherein a left bearing (3) is arranged between the left pressing end cover (2) and the left positioning snap spring (9), and a right bearing (6) is arranged between the right pressing end cover (7) and the right positioning snap spring (8).
4. The sealing mechanism of the underwater resistance measuring device according to claim 1, wherein the left compression end cover (2) and the right compression end cover (7) are respectively connected with the left end cover (4) of the test cylinder body through bolts.
5. The sealing mechanism of the underwater resistance measuring device according to claim 1, wherein the left end cover (4) of the test cylinder is of a T-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010845170.5A CN111963686A (en) | 2020-08-20 | 2020-08-20 | Sealing mechanism of underwater resistance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010845170.5A CN111963686A (en) | 2020-08-20 | 2020-08-20 | Sealing mechanism of underwater resistance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111963686A true CN111963686A (en) | 2020-11-20 |
Family
ID=73389720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010845170.5A Pending CN111963686A (en) | 2020-08-20 | 2020-08-20 | Sealing mechanism of underwater resistance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111963686A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296331A (en) * | 2023-03-16 | 2023-06-23 | 中国船舶科学研究中心 | Verification tool for propeller shaft and verification method thereof |
-
2020
- 2020-08-20 CN CN202010845170.5A patent/CN111963686A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296331A (en) * | 2023-03-16 | 2023-06-23 | 中国船舶科学研究中心 | Verification tool for propeller shaft and verification method thereof |
| CN116296331B (en) * | 2023-03-16 | 2024-03-08 | 中国船舶科学研究中心 | Verification tool for propeller shaft and verification method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111963686A (en) | Sealing mechanism of underwater resistance measuring device | |
| CN109342046B (en) | Online testing system for floating performance of sealing assembly | |
| CN104935103A (en) | Motor sealing device of underwater robot and leakage detecting method for motor sealing device | |
| CN211810092U (en) | Mechanical timing release device applied in full sea depth | |
| CN212297601U (en) | Waterproof sealing mechanism of underwater resistance measuring device | |
| CN103696956B (en) | A kind of water hydraulic axial piston pump Port Plate Pair of equalising torque | |
| CN110388567B (en) | Vulnerability detection and disposal device and method for underwater robot | |
| CN101329160A (en) | Method for testing sealing ring motion state in rotary sealing device | |
| CN2901291Y (en) | External spherical bearing life test machine | |
| CN202371176U (en) | Marine bay seal transmission shaft device | |
| CN105155536A (en) | Hydraulic underwater pile clamping device and hydraulic system composed of hydraulic underwater pile clamping device | |
| CN109243756B (en) | Sucker type electromagnet sealing magnetic conduction structure | |
| CN211662091U (en) | Underwater mechanical arm rotary joint capable of online leakage detection | |
| CN204761207U (en) | Underwater robot motor seal device | |
| CN110206740B (en) | Full-dry submersible electric pump with segmented waterproof system | |
| CN107575502A (en) | A kind of compact type hydraulic control clutch of high water pressure resistant environment | |
| CN101852295A (en) | High-sealability mechanical sealing device | |
| CN2620262Y (en) | Vibration-proof leakage-proof device for temp sensor | |
| CN114571498B (en) | Sealed rotary servo joint for underwater robot | |
| CN205748820U (en) | A kind of real-time monitoring device turning oil sealing for aero-engine band | |
| CN205981574U (en) | Automobile engine oil blanket intelligence device that leaks hunting | |
| CN205748821U (en) | A kind of oil sealing automatic leak-checking device | |
| CN213332378U (en) | Rubber bellows mechanical seal for pump | |
| CN203548905U (en) | Pouring plug sealing body | |
| CN215635492U (en) | High-pressure rubber pipe for oil exploitation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |