CN115289099A - Underwater hydraulic cylinder experiment system for simulating different depths - Google Patents

Underwater hydraulic cylinder experiment system for simulating different depths Download PDF

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Publication number
CN115289099A
CN115289099A CN202210848178.6A CN202210848178A CN115289099A CN 115289099 A CN115289099 A CN 115289099A CN 202210848178 A CN202210848178 A CN 202210848178A CN 115289099 A CN115289099 A CN 115289099A
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CN
China
Prior art keywords
pressure
hydraulic cylinder
sealing
piston rod
end cover
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
Application number
CN202210848178.6A
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Chinese (zh)
Inventor
吴正江
王内
殷洪
向超
曾保平
刘贻欧
毋迪
吴勇
贺学明
张润林
汪琦
赖奇暐
毛旭耀
王泽�
余武斌
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719th Research Institute of CSIC
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719th Research Institute of CSIC
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Filing date
Publication date
Application filed by 719th Research Institute of CSIC filed Critical 719th Research Institute of CSIC
Priority to CN202210848178.6A priority Critical patent/CN115289099A/en
Publication of CN115289099A publication Critical patent/CN115289099A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
    • F15B19/007—Simulation or modelling

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)

Abstract

The invention provides an underwater hydraulic cylinder experiment system for simulating different depths, which comprises a pressure-resistant tank, wherein end covers for sealing are arranged at two ends of the pressure-resistant tank, and a fixed supporting structure for fixing a hydraulic cylinder is arranged in the pressure-resistant tank; the end cover is provided with a sealing opening which is used for being movably connected with a piston rod of the hydraulic cylinder or an extension rod of the piston rod in a sealing way, so that the piston rod of the hydraulic cylinder or the extension rod of the piston rod extends out of the end cover; the pressure-resistant tank or the end cover is also provided with a pressure-regulating water inlet for supplying pressure liquid into the pressure-resistant tank; an oil pipe sealing opening and a cable sealing opening are further formed in the pressure-resistant tank or the end cover, the oil pipe sealing opening is used for allowing the pressure oil pipe to pass through in a sealing mode and is connected with the hydraulic cylinder, and the cable sealing opening is used for allowing the conductive cable to pass through in a sealing mode. Through adopting foretell structure, can be through the liquid of pressure regulating water inlet filling different pressure to the operating mode under the simulation, the sensor of setting can detect the operating mode of pneumatic cylinder.

Description

Underwater hydraulic cylinder experiment system for simulating different depths
Technical Field
The invention relates to the field of deep water experiment devices, in particular to an underwater hydraulic cylinder experiment system for simulating different depths.
Background
In underwater work, a hydraulic cylinder in water is needed to complete operation actions, for example, the driving of an underwater manipulator, when the water depth reaches 500 to 4000 meters, the pressure borne by the hydraulic cylinder in water correspondingly reaches about 5 to 40MPa, and the working state of the hydraulic cylinder is greatly different from that on the ground. Through retrieval, no experimental device for simulating the hydraulic cylinder to work in deep water is available at present.
Disclosure of Invention
The invention aims to solve the technical problem of providing an underwater hydraulic cylinder experiment system for simulating different depths, which can simulate the working conditions of the hydraulic cylinder under different depths in water so as to assist the development of the underwater hydraulic cylinder.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an underwater hydraulic cylinder experiment system for simulating different depths comprises a pressure-resistant tank, wherein end covers for sealing are arranged at two ends of the pressure-resistant tank, and a fixed support structure for fixing a hydraulic cylinder is arranged in the pressure-resistant tank;
the end cover is provided with a sealing opening which is used for being in sealing movable connection with a piston rod of the hydraulic cylinder or an extension rod of the piston rod, so that the piston rod of the hydraulic cylinder or the extension rod of the piston rod extends out of the end cover;
the pressure-resistant tank or the end cover is also provided with a pressure-regulating water inlet for supplying pressure liquid into the pressure-resistant tank;
an oil pipe sealing opening and a cable sealing opening are further formed in the pressure-resistant tank or the end cover, the oil pipe sealing opening is used for allowing the pressure oil pipe to pass through in a sealing mode and is connected with the hydraulic cylinder, and the cable sealing opening is used for allowing the conductive cable to pass through in a sealing mode.
In the preferred scheme, the piston rod is fixedly connected with the extension rod, and the outer diameter of the extension rod is the same as that of the piston rod.
In the preferred scheme, a switch rod is arranged on a cylinder body of the hydraulic cylinder, a plurality of travel switches are arranged on the switch rod, and a travel contact is arranged on a piston rod and used for triggering the travel switches.
In a preferred scheme, a verification stroke sensor is arranged outside the end cover and used for verifying the stroke of the piston rod or the extension rod of the piston rod outside the end cover.
In the preferred scheme, the structure of the verification stroke sensor is that the friction wheel is in contact with the piston rod or the extension rod of the piston rod and rotates along with the extension of the piston rod or the extension rod of the piston rod, the friction wheel is connected with the synchronizing sheet through a transmission mechanism, a photoelectric sensor is arranged near the synchronizing sheet, the synchronizing sheet is provided with a texture convenient for detection, and the photoelectric sensor is used for detecting the corner of the synchronizing sheet.
In a preferable scheme, a pressure measuring exhaust valve is further arranged at the position, close to the top, of the pressure-resistant tank or the end cover.
In a preferred scheme, one end of the hydraulic cylinder, which is far away from the piston rod, is fixedly connected with the end positioning support.
In a preferable scheme, a stroke sensor is further arranged in the hydraulic cylinder, and a cable of the stroke sensor is led out through a first cable sealing port arranged on the end cover;
and a pressure sensor port is also arranged on the hydraulic cylinder and is used for connecting a pressure sensor, and a cable of the pressure sensor is connected out through a cable sealing port.
In a preferred scheme, the structure of the pressure oil pipe is as follows: the oil pipe layer is internally provided with a plurality of support rings which are arranged along the axial direction, gaps are arranged among the support rings, two ends of each support ring are provided with guide circles, and a connecting layer is arranged between each support ring and the oil pipe layer.
In a preferred scheme, the structure of the sealing port is as follows: one part of the outer sealing cover penetrates through the end cover and is connected with the end cover through a plurality of outer sealing bolts, and the outer wall of the outer sealing cover is sealed with the end cover through a first sealing ring;
the inner sealing cover is connected with the outer sealing cover through a plurality of inner sealing screws;
a spherical sleeve is arranged between the inner sealing cover and the outer sealing cover, and the outer wall of the spherical sleeve is sealed with the outer sealing cover through a second sealing ring;
a through hole is formed in the center of the spherical sleeve, a self-tightening sealing ring is arranged in the through hole, and the self-tightening sealing ring is movably and hermetically connected with the piston rod or the extension rod of the piston rod;
the self-tightening sealing ring is provided with a V-shaped opening facing the inner side of the end cover.
According to the underwater hydraulic cylinder experimental system for simulating different depths, the structure is adopted, liquid with different pressures can be filled through the pressure regulating water inlet, so that underwater working conditions are simulated, and the working conditions of the hydraulic cylinder can be detected through the arranged sensor. For example, the working states of various stroke sensors in the hydraulic cylinder under different pressure working conditions can be verified by the arranged stroke sensors. The sealing opening can avoid pressure fluctuation caused by the telescopic inner pressure-resistant tank of the piston rod. The structure of the pressure oil pipe can overcome the pressure in the pressure-resistant tank without deformation during oil return.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic cross-sectional view of the present invention.
FIG. 2 isbase:Sub>A schematic cross-sectional view of A-A in FIG. 1.
Fig. 3 is a partially enlarged schematic view of the sealing port of the present invention.
FIG. 4 is a front view of the second endcap of the present invention.
FIG. 5 is a schematic view, partially in section, of a pressure tube of the present invention.
In the figure: the device comprises an axial fixing device 1, an axial limiting rod 2, a pressure-resistant tank 3, a base 4, a pressure-measuring exhaust valve 5, a lifting lug 6, a first end cover 7, a first cable sealing port 8, a pressure-regulating water inlet 9, a connecting screw 10, a stroke sensor joint 11, a first liquid inlet 12, a bottom fixing support 13, a diagonal tension member 131, a V-shaped member 132, a support seat 133, a diagonal tension steel wire rope 134, an elastic cushion block 14, a top suspension support 15, a second liquid inlet 16, an end positioning support 17, a lubricating oil port 18, an oil pipe sealing port 19, a second cable sealing port 20, a sealing port 21, an inner sealing cover 211, an outer sealing cover 212, an outer sealing bolt 213, a first sealing ring 214, a second sealing ring 215, a self-tightening type sealing ring 216, a spherical sleeve 217, an inner sealing screw 218, a second end cover 22, a switch rod 23, a pressure oil pipe 24, an oil pipe layer 241, a connecting layer 242, a support ring 243, a stroke switch 25, a piston rod 26, a stroke contact 27, a pressure sensor port 28, an extension rod 29, a hydraulic cylinder 30, a friction wheel 311, a stroke sensor 31, a photoelectric sensors 312 and a synchronous sheet 313.
Detailed Description
Example 1:
as shown in fig. 1, 2 and 4, an underwater hydraulic cylinder experimental system for simulating different depths comprises a pressure-resistant tank 3, wherein end covers for sealing are arranged at two ends of the pressure-resistant tank 3, and a fixed supporting structure for fixing a hydraulic cylinder 30 is arranged in the pressure-resistant tank 3;
the end cover is provided with a sealing port 21, and the sealing port 21 is used for being in sealing movable connection with a piston rod of the hydraulic cylinder 30 or an extension rod of the piston rod, so that the piston rod of the hydraulic cylinder 30 or the extension rod of the piston rod extends out of the end cover;
the pressure-resistant tank 3 or the end cover is also provided with a pressure-regulating water inlet 9 for supplying pressure liquid into the pressure-resistant tank 3;
an oil pipe sealing opening 19 and a cable sealing opening are further formed in the pressure-resistant tank 3 or the end cover, the oil pipe sealing opening 19 is used for allowing the pressure oil pipe 24 to pass through in a sealing mode and is connected with the hydraulic cylinder 30, and the cable sealing opening is used for allowing a conductive cable to pass through in a sealing mode. With the structure, the working condition of the hydraulic cylinder 30 under the deep water condition can be tested by filling the pressure medium into the pressure regulating water inlet 9. The sealing port 21 structure makes the piston rod or the extension rod of the piston rod extend out of the end cover, so that the pressure change caused by the volume change in the pressure resistant tank 3 due to the extension and retraction of the piston rod can be avoided. The term "outside the end cap" as used herein means outside the cavity of the pressure-resistant tank 3.
In a preferred embodiment, as shown in fig. 1, the piston rod is fixedly connected to the extension rod, and the outer diameter of the extension rod is the same as the outer diameter of the piston rod. With this structure, the change in the internal volume of the pressure-resistant tank 3 due to the diameter-changing factor is avoided.
Preferably, as shown in fig. 1, a switch rod 23 is provided on a cylinder body of the hydraulic cylinder 30, a plurality of travel switches 25 are provided on the switch rod 23, a travel contact 27 is provided on a piston rod, and the travel contact 27 is used to trigger the travel switches 25. The structure is used for controlling the automatic reversing action of the hydraulic cylinder 30.
In a preferred embodiment, as shown in fig. 1 and 3, a verification stroke sensor 31 is further provided outside the end cap for verifying the stroke of the piston rod or the extension rod of the piston rod outside the end cap. With this configuration, it is possible to verify an error between data of the stroke sensor provided in the hydraulic cylinder 30 and actual stroke data of the extension rod under a high hydraulic pressure condition.
Preferably, as shown in fig. 3, the verification stroke sensor 31 is configured such that the friction wheel 311 contacts the piston rod or the extension rod of the piston rod, and rotates along with the extension and contraction of the piston rod or the extension rod of the piston rod, the friction wheel 311 is connected to the synchronization sheet 313 through a transmission mechanism, the photoelectric sensor 312 is disposed near the synchronization sheet 313, the synchronization sheet 313 is provided with a texture convenient for detection, and the photoelectric sensor 312 is used for detecting a rotation angle of the synchronization sheet 313. With the structure, the stroke of the piston rod can be measured more accurately and conveniently.
In a preferred scheme, as shown in fig. 1, a pressure measuring exhaust valve 5 is further arranged at a position, close to the top, of the pressure resistant tank 3 or the end cover. With this structure, it is used for discharging the gas inside the pressure-resistant tank 3 and for measuring the pressure inside the pressure-resistant tank 3.
Preferably, as shown in fig. 1, the end of the hydraulic cylinder 30 remote from the piston rod 26 is fixedly connected to the end positioning support 17. This structure serves to fix the axial position of the hydraulic cylinder 30. In the preferred scheme, the end positioning support 17 is fixedly connected with the inner wall of the pressure tank 3, the end positioning support 17 is fixedly connected with the axial fixing device 1 through the axial limiting rod 2, and the axial fixing device 1 is connected with the end head of the hydraulic cylinder 30 through a flange structure.
More preferably, as shown in fig. 1 and 2, a plurality of bottom fixing supports 13 are further provided, each bottom fixing support 13 includes a support seat 133 located at the bottom, two ends of each support seat 133 are fixedly connected with the inner wall of the pressure-resistant tank 3, two groups of horizontally placed angle steels are provided on each support seat 133 to form V-shaped parts 132, the V-shaped parts 132 are located at two sides of the hydraulic cylinder 30 to limit the rolling of the hydraulic cylinder 30, an inclined pull member 131 is further provided at the outer side of each V-shaped part 132, two ends of each inclined pull wire 134 are connected with the inclined pull member 131 through bolts, the inclined pull wire 134 bypasses the outer wall of the hydraulic cylinder 30, and the inclined pull wire 134 is used for locking the hydraulic cylinder 30. A top suspension support 15 is also provided at the top of the hydraulic cylinder 30 for compressing the hydraulic cylinder 30. A resilient pad 14 is also provided between the hydraulic cylinder 30 and the V-shaped member 132.
In a preferred scheme, as shown in fig. 1, a stroke sensor is further arranged in the hydraulic cylinder 30, and a cable of the stroke sensor is connected out through a first cable sealing port 8 arranged on an end cover; with this structure, the stroke of the hydraulic cylinder 30 is measured under a high water pressure condition.
The hydraulic cylinder 30 is also provided with a pressure sensor port 28 for receiving a pressure sensor, and a cable of the pressure sensor is led out through a cable sealing port.
In a preferred embodiment as shown in fig. 5, the pressure oil pipe 24 has a structure: a plurality of support rings 243 arranged along the axial direction are arranged in the oil pipe layer 241, gaps are arranged among the support rings 243, both ends of each support ring 243 are provided with a circle, and a connecting layer 242 is arranged between each support ring 243 and the oil pipe layer 241. Preferably, the support ring 243 is a metal ring, so that the structure prevents the oil return pressure of the pressure oil pipe 24 from being compressed due to normal pressure during oil return. The connecting layer 242 is made of a heat shrinkable material, such as a polyethylene pipe, and the connecting layer 242 is used to maintain a gap between the support rings 243.
In a preferred embodiment as shown in fig. 3, the sealing port 21 has a structure: a part of the outer sealing cover 212 penetrates through the end cover and is connected with the end cover through a plurality of outer sealing bolts 213, and the outer wall of the outer sealing cover 212 is sealed with the end cover through a first sealing ring 214;
the inner seal cover 211 is connected to the outer seal cover 212 by a plurality of inner seal screws 218;
a spherical sleeve 217 is arranged between the inner sealing cover 211 and the outer sealing cover 212, and the outer wall of the spherical sleeve 217 is sealed with the outer sealing cover 212 through a second sealing ring 215; with this structure, the sealing effect is better when the pressure in the pressure-resistant tank 3 is applied.
A through hole is formed in the center of the spherical sleeve 217, a self-tightening sealing ring 216 is arranged in the through hole, and the self-tightening sealing ring 216 is movably and hermetically connected with the piston rod or an extension rod of the piston rod;
the self-tightening seal ring 216 is provided with a "V" shaped opening that faces the inside of the end cap. With this structure, when the pressure in the pressure-resistant tank 3 is received, the self-tightening seal 216 is pressed against the outer wall of the extension rod 29. With this structure, in addition to ensuring the sealing, the movement error of the hydraulic cylinder 30 can be compensated.
In a preferable scheme, a drain hole is further formed in the bottom of the hydraulic cylinder 30, the drain hole is connected to the outside of the end cover through a drain pipeline, and the drain hole is communicated with a cavity of the hydraulic cylinder 30 and used for detecting the performance of the waterproof sealing element of the piston rod.
Example 2:
in addition to example 1, in use, the pressure-resistant tank 3 was assembled, the extension rod 29 was attached, and the assembly condition was checked, and it was required that the sealing and attachment were good without interference. Water is pumped into the pressure resistant tank 3 from the pressure regulating water inlet 9 by an external booster pump, the pressure is gradually increased to a preset pressure, for example, 10MPa, and the pressure is maintained for 10min without leakage. And the pipelines and the circuits are connected, and the positions of joints are free from leakage. After pressure relief, in a water-free state, the piston rod 26 of the hydraulic cylinder 30 is controlled to reciprocate to measure the maximum stroke, whether the stroke switch 25 is in response is detected, the time of each reciprocating motion is recorded, each error of the reciprocating stroke is detected by the stroke sensor 31, and whether the built-in stroke sensor of the hydraulic cylinder 30 has an error is detected by the stroke sensor 31. The time of the reciprocating motion under no load and the time of the reciprocating motion again under load are detected, and the pressure of the pressure sensor on the pressure-resistant tank 3 and the pressure of the pressure sensor on the hydraulic cylinder 30, particularly the pressure of the oil return end, are recorded. Gradually increasing the pressure at 0.5MPa, and repeating the detection steps. Through the above detection, the working condition of the hydraulic cylinder 30 under the deep water, the movement of the hydraulic cylinder 30 under the deep water working condition and the influence of the sensor can be evaluated.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims (10)

1. The utility model provides a simulation different degree of depth's pneumatic cylinder experimental system under water, characterized by: the device comprises a pressure-resistant tank (3), wherein end covers for sealing are arranged at two ends of the pressure-resistant tank (3), and a fixed supporting structure for fixing a hydraulic cylinder (30) is arranged in the pressure-resistant tank (3);
the end cover is provided with a sealing opening (21), and the sealing opening (21) is used for being in sealing movable connection with a piston rod of the hydraulic cylinder (30) or an extension rod of the piston rod, so that the piston rod of the hydraulic cylinder (30) or the extension rod of the piston rod extends out of the end cover;
the pressure-resistant tank (3) or the end cover is also provided with a pressure-regulating water inlet (9) for supplying pressure liquid into the pressure-resistant tank (3);
an oil pipe sealing opening (19) and a cable sealing opening are further formed in the pressure tank (3) or the end cover, the oil pipe sealing opening (19) is used for allowing the pressure oil pipe (24) to penetrate in a sealing mode and is connected with the hydraulic cylinder (30), and the cable sealing opening is used for allowing the conductive cable to penetrate in a sealing mode.
2. The underwater hydraulic cylinder experiment system for simulating different depths as claimed in claim 1, wherein: the piston rod is fixedly connected with the extension rod, and the outer diameter of the extension rod is the same as that of the piston rod.
3. The underwater hydraulic cylinder experiment system for simulating different depths as claimed in claim 1, wherein: a switch rod (23) is arranged on a cylinder body of the hydraulic cylinder (30), a plurality of travel switches (25) are arranged on the switch rod (23), a travel contact (27) is arranged on a piston rod, and the travel contact (27) is used for triggering the travel switches (25).
4. The underwater hydraulic cylinder experiment system for simulating different depths as claimed in claim 1, wherein: a verification stroke sensor (31) is arranged outside the end cover and is used for verifying the stroke of the piston rod or the extension rod of the piston rod outside the end cover.
5. The underwater hydraulic cylinder experiment system for simulating different depths as claimed in claim 1, wherein: the verification stroke sensor (31) is structurally characterized in that a friction wheel (311) is in contact with a piston rod or an extension rod of the piston rod and rotates along with the extension of the piston rod or the extension rod of the piston rod, the friction wheel (311) is connected with a synchronizing sheet (313) through a transmission mechanism, a photoelectric sensor (312) is arranged near the synchronizing sheet (313), textures convenient to detect are arranged on the synchronizing sheet (313), and the photoelectric sensor (312) is used for detecting the rotation angle of the synchronizing sheet (313).
6. The underwater hydraulic cylinder experiment system for simulating different depths as claimed in claim 1, wherein: and a pressure measuring exhaust valve (5) is also arranged at the position of the pressure-resistant tank (3) or the end cover close to the top.
7. The underwater hydraulic cylinder experiment system for simulating different depths as claimed in claim 1, wherein: one end of the hydraulic cylinder (30) far away from the piston rod (26) is fixedly connected with the end positioning support (17).
8. The underwater hydraulic cylinder experiment system for simulating different depths as claimed in claim 1, wherein: a stroke sensor is also arranged in the hydraulic cylinder (30), and a cable of the stroke sensor is connected out through a first cable sealing port (8) arranged on the end cover;
the hydraulic cylinder (30) is also provided with a pressure sensor port (28) for connecting a pressure sensor, and a cable of the pressure sensor is led out through a cable sealing port.
9. The underwater hydraulic cylinder experiment system for simulating different depths as claimed in claim 1, wherein: the structure of the pressure oil pipe (24) is as follows: a plurality of support rings (243) which are arranged along the axial direction are arranged in the oil pipe layer (241), gaps are arranged among the support rings (243), both ends of each support ring (243) are provided with a circle, and a connecting layer (242) is arranged between each support ring (243) and the oil pipe layer (241).
10. The underwater hydraulic cylinder experiment system for simulating different depths as claimed in claim 1, wherein: the structure of the sealing port (21) is as follows: a part of the outer sealing cover (212) penetrates through the end cover and is connected with the end cover through a plurality of outer sealing bolts (213), and the outer wall of the outer sealing cover (212) is sealed with the end cover through a first sealing ring (214);
the inner sealing cover (211) is connected with the outer sealing cover (212) through a plurality of inner sealing screws (218);
a spherical sleeve (217) is arranged between the inner sealing cover (211) and the outer sealing cover (212), and the outer wall of the spherical sleeve (217) is sealed with the outer sealing cover (212) through a second sealing ring (215);
a through hole is formed in the center of the spherical sleeve (217), a self-tightening sealing ring (216) is arranged in the through hole, and the self-tightening sealing ring (216) is movably and hermetically connected with the piston rod or an extension rod of the piston rod;
the self-tightening sealing ring (216) is provided with a V-shaped opening, and the V-shaped opening faces the inner side of the end cover.
CN202210848178.6A 2022-07-19 2022-07-19 Underwater hydraulic cylinder experiment system for simulating different depths Pending CN115289099A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210848178.6A CN115289099A (en) 2022-07-19 2022-07-19 Underwater hydraulic cylinder experiment system for simulating different depths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210848178.6A CN115289099A (en) 2022-07-19 2022-07-19 Underwater hydraulic cylinder experiment system for simulating different depths

Publications (1)

Publication Number Publication Date
CN115289099A true CN115289099A (en) 2022-11-04

Family

ID=83824307

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210848178.6A Pending CN115289099A (en) 2022-07-19 2022-07-19 Underwater hydraulic cylinder experiment system for simulating different depths

Country Status (1)

Country Link
CN (1) CN115289099A (en)

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