CN211924637U - Differential pressure compensator of underwater hydraulic system - Google Patents
Differential pressure compensator of underwater hydraulic system Download PDFInfo
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- CN211924637U CN211924637U CN202020104877.6U CN202020104877U CN211924637U CN 211924637 U CN211924637 U CN 211924637U CN 202020104877 U CN202020104877 U CN 202020104877U CN 211924637 U CN211924637 U CN 211924637U
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Abstract
The utility model discloses a pressure difference compensator of an underwater hydraulic system, which is arranged in an installation cabin of a dredging robot, the pressure difference compensator comprises a hydraulic oil side sealing cover, a hydraulic oil side telescopic leather bag sealing flange, a water side telescopic leather bag sealing flange and a base, the side walls of the hydraulic oil side telescopic leather bag sealing flange and the hydraulic oil side sealing cover are provided with a hydraulic oil side PC sleeve, the hydraulic oil side telescopic leather bag sealing flange is fixedly connected with the water side telescopic leather bag sealing flange, the side walls of the water side telescopic leather bag sealing flange and the base are provided with a water side PC sleeve, the hydraulic oil side PC sleeve and the water side PC sleeve are internally and slidably connected with a sliding plunger, the utility model can form a series product with the volume being randomly compensated between 2L and 16L, can change the prepressing force at any time, has simple structure, low manufacturing cost, small volume grinding tool and strong technical universality, and can realize batch production through prefabrication, the product quality is reliable, and the requirements of integration and miniaturization are met.
Description
Technical Field
The utility model relates to a compensator technical field, concrete field is a hydraulic system pressure differential compensator under water.
Background
The pressure difference compensation of an underwater hydraulic system is always difficult in underwater hydraulic pressure, and pressure difference compensators which can be seen in the market have a telescopic leather bag type, a corrugated pipe type and a metal thin mode, and have the same characteristics of being a thin-wall container and allowing certain elastic deformation so as to balance pressure difference change. The defect is that the technical universality is not strong, a series of products are difficult to form, the service life is short, the reliability is poor, most of the existing underwater hydraulic equipment belongs to special-shaped products, the arrangement and the installation are difficult, the existing underwater hydraulic equipment generally has certain operation water depth change according to underwater topography, different prepressing needs to be set according to a change range, the purpose that the internal pressure is slightly larger than the external pressure is achieved, most of the traditional differential pressure compensator can only set fixed pressure, and different prepressing cannot be set according to the change range.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an underwater hydraulic system pressure differential compensator to provide traditional pressure differential compensator and can only set for fixed pressure mostly in solving above-mentioned background art, can't set for different pre-compaction, problem according to the range of variation.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an underwater hydraulic system pressure difference compensator, sets up in the installation cabin of desilting robot, pressure difference compensator includes the sealed lid of hydraulic oil side, the flexible leather bag sealing flange of water side and base, the flexible leather bag sealing flange of hydraulic oil side is equipped with hydraulic oil side PC sleeve with the lateral wall of the sealed lid of hydraulic oil side, the flexible leather bag sealing flange of hydraulic oil side and the flexible leather bag sealing flange fixed connection of water side, the lateral wall of the flexible leather bag sealing flange of water side and base is equipped with water side PC sleeve, sliding connection has the slip plunger in hydraulic oil side PC sleeve and the water side PC sleeve, the inside of hydraulic oil side PC sleeve is equipped with the reciprocal subassembly of pressure difference that promotes the motion of slip plunger, water side PC sleeve is equipped with the pressure differential spring subassembly that promotes the motion of slip plunger, the lateral wall of the sealed lid of hydraulic oil side link up threaded connection has ball valve adapter, Oil tank adapter and pressure sensor, ball valve adapter one end threaded connection has the ball valve, be equipped with a plurality of through-hole on the base.
Preferably, the reciprocal subassembly of pressure differential includes flexible rubber leather bag and flexible rubber leather bag clamp plate, the one end setting of flexible rubber leather bag is on the flexible leather bag sealing flange of hydraulic pressure oil side and the flexible leather bag sealing flange of water side, the one end that the slip plunger is located hydraulic pressure oil side PC sleeve stretches into in the flexible rubber leather bag, flexible rubber leather bag clamp plate is located flexible rubber leather bag and is close to on the terminal surface of the sealed lid of hydraulic pressure oil side, flexible rubber leather bag passes through flexible leather bag clamp plate fastening bolt group and flexible rubber leather bag clamp plate and slip plunger fixed connection.
Preferably, the differential pressure spring assembly comprises a differential pressure compensation spring and a limiting cylinder, one end of the differential pressure compensation spring is attached to the base, the other end of the differential pressure compensation spring extends into the sliding plunger and is attached to the inner end face of the sliding plunger, the limiting cylinder is arranged in the differential pressure compensation spring and used for providing a guiding effect for the differential pressure compensation spring, one end of the limiting cylinder is arranged on the base through a limiting cylinder fastening bolt group, and a plurality of through holes are formed in the limiting cylinder.
Preferably, the hydraulic oil side sealing cover and the hydraulic oil side telescopic leather bag sealing flange are provided with sealing grooves matched with the PC sleeve on the hydraulic oil side for installation, and O-shaped sealing rings are arranged in the sealing grooves.
Preferably, the base and the hydraulic oil side seal cover are provided with a base through a base plate fastening bolt group.
Preferably, one end of the ball valve is provided with a blocking cap for preventing foreign matters from blocking a threaded opening of the ball valve.
Preferably, the hydraulic oil side PC sleeve and the water side PC sleeve are made of transparent PC materials, and the base, the sliding plunger, the hydraulic oil side flexible bladder sealing flange, the water side flexible bladder sealing flange and the hydraulic oil side sealing cover are made of polymer materials.
Preferably, the hydraulic oil side telescopic leather bag sealing flange and the water side telescopic leather bag sealing flange are in flange connection through a middle sealing flange fastening bolt group, and the base, the hydraulic oil side telescopic leather bag sealing flange, the water side telescopic leather bag sealing flange and the hydraulic oil side sealing cover are fixedly connected through a main body through bolt group.
Preferably, the outer side wall of the hydraulic oil side sealing cover is provided with a product nameplate through a nameplate fastening bolt group for identifying product information.
Preferably, the surface of the PC sleeve on the hydraulic oil side is provided with identification scales.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides an on hydraulic system's hydraulic tank under water pressure differential compensator, this equipment generally installs hydraulic system, through flexible rubber leather bag, flexible leather bag clamp plate fastening bolt group, the cooperation of flexible rubber leather bag clamp plate and slip plunger, whole compensation arrangement's core has been constituted, the volume change of hydraulic pressure oil side is realized through its reciprocating motion, pressure differential change when compensating hydraulic system work with this, constitute a hydraulic tank who possesses pressure differential compensation function, fill up hydraulic oil in the oil tank earlier during the use, start actuating mechanism, continuously mend oil when the liquid level reduces in the oil tank, until filling up again. Sealed hydraulic oil tank filler hole and oil tank bleeder vent ensure that the ball valve is in the closed condition, lift stifled cap off, connect pre-compaction equipment on the ball valve, when the pre-compaction is to the calculated value, close the ball valve, lift pre-compaction equipment off, the stifled cap of assembly can, the utility model discloses can form the volume from the serialization product of arbitrary compensation between 2L to 16L, can change the pre-pressure at any time, and simple structure, low in manufacturing cost, small in size, technological commonality are strong, and the prefabricated grinding apparatus of accessible realizes mass production, and product quality is reliable, satisfies the demand that integrates and miniaturize.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a schematic front view of the structure of FIG. 1;
fig. 4 is a right-view structural diagram of fig. 1.
In the figure: 301-hydraulic oil side seal cover, 302-hydraulic oil side telescopic leather bag seal flange, 303-water side telescopic leather bag seal flange, 304-base, 305-hydraulic oil side PC sleeve, 306-water side PC sleeve, 307-sliding plunger, 308-differential pressure reciprocating component, 3081-telescopic rubber leather bag, 3082-telescopic rubber leather bag press plate, 3083-telescopic leather bag press plate fastening bolt group, 309-differential pressure spring component, 3091-differential pressure compensation spring, 3092-limiting cylinder, 3093-limiting cylinder fastening bolt group, 310-ball valve adapter, 311-oil tank adapter, 312-pressure sensor, 313-ball valve, 314-O type seal ring, 315-base plate fastening bolt group, 316-base, 317-blocking cap, 318-middle seal flange fastening bolt group, 319-main body set of through bolts, 320-set of nameplate fastening bolts, 321-product nameplate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a pressure difference compensator of an underwater hydraulic system is arranged in an installation cabin of a dredging robot and comprises a hydraulic oil side sealing cover 301, a hydraulic oil side telescopic leather bag sealing flange 302 arranged on one side of the hydraulic oil side sealing cover 301, a water side telescopic leather bag sealing flange 303 connected with the hydraulic oil side telescopic leather bag sealing flange 302 and a base 304 arranged on one side of the water side telescopic leather bag sealing flange 303, wherein the hydraulic oil side telescopic leather bag sealing flange 302 and the water side telescopic leather bag sealing flange 303 are the same in size and have the same horizontal straight line, the hydraulic oil side telescopic leather bag sealing flange 302 and the side wall of the hydraulic oil side sealing cover 301 are provided with a hydraulic oil side PC sleeve 305, the hydraulic oil side telescopic leather bag sealing flange 302 is fixedly connected with the water side telescopic leather bag sealing flange 303, the water side telescopic leather bag sealing flange 303 and the side wall of the base 304 are provided with a water side PC sleeve 306, a sliding plunger 307 is connected in the hydraulic oil side PC sleeve 305 and the water passing side PC sleeve 306 in a sliding manner, a differential pressure reciprocating assembly 308 for pushing the sliding plunger 307 is arranged in the hydraulic oil side PC sleeve 305, a differential pressure spring assembly 309 for pushing the sliding plunger 307 is arranged in the water passing side PC sleeve 306, a ball valve adapter 310, a tank adapter 311 and a pressure sensor 312 are connected on the outer side wall of the hydraulic oil side sealing cover 301 in a penetrating and threaded manner, the IP grade of the pressure sensor 19 reaches 68 and can meet the underwater work requirement, one end of the ball valve adapter 310, one end of the tank adapter 311 and a sensing end of the pressure sensor 312 are communicated with the inside of the hydraulic oil side PC sleeve 305, a ball valve 313 is connected at one end of the ball valve adapter 310 in a threaded manner and can be connected with pre-pressing equipment or decompressed, a plurality of through holes are formed in the base 304, the deeper the water, the greater the pressure difference, the more complex the corresponding pressure difference compensator, the important element for storing hydraulic oil in the hydraulic oil tank, which directly affects the safety of the hydraulic system, the underwater hydraulic system can not use the open oil tank as the atmosphere, generally uses the totally enclosed pressure oil tank, the hydraulic oil cylinder and other actuating mechanisms, in the reciprocating process, along with the refuting and returning of the hydraulic oil from the mailbox, the internal pressure of the mailbox will change periodically, and the enough volume of the pressure difference compensator must be equipped to effectively compensate, in addition, in order to ensure the reliable sealing of the diving system, it is usually necessary to provide a pre-pressure to the hydraulic oil tank before the hydraulic equipment is launched, so that the internal pressure of the system is slightly greater than the surrounding water pressure, which can prevent the water from entering the hydraulic system in case of damage, and can also make the hydraulic oil tank store abundant oil, the equipment is suitable for both seawater and environment.
Specifically, the differential pressure reciprocating assembly 308 includes a flexible rubber bladder 3081 provided in the hydraulic oil side PC sleeve 305 and a flexible rubber bladder pressing plate 3082 provided on the hydraulic oil side PC sleeve 305 side, one end of the flexible rubber bladder 3081 is provided on the hydraulic oil side flexible bladder sealing flange 302 and the water passage side flexible bladder sealing flange 303, the hydraulic oil side flexible bladder sealing flange 302 and the water passage side flexible bladder sealing flange 303 seal and clamp one end of the flexible rubber bladder 3081, so that the oil-water interface is separated by the flexible rubber bladder 3081 pressed by the water passage side flexible bladder sealing flange 303 and the hydraulic oil side flexible bladder sealing flange 302, one end of the sliding plunger 307 located in the hydraulic oil side PC sleeve 305 extends into the flexible rubber bladder 3081, the flexible rubber bladder pressing plate 3082 is located on the end surface of the flexible rubber bladder 3081 close to the hydraulic oil side flexible bladder sealing flange 301, and the flexible rubber bladder pressing plate 81 is fastened to the flexible rubber bladder pressing plate 3082 and the sliding plunger 307 by the flexible rubber bladder fastening screw group 3083 The fixed connection forms the core of the whole compensator, and the volume change of the hydraulic oil side is realized through the reciprocating motion of the compensator, so that the pressure difference change of the hydraulic system during working is compensated.
Specifically, the differential pressure spring assembly 309 includes a differential pressure compensation spring 3091 and a limiting cylinder 3092 which are arranged in the water-passing side PC sleeve 306, one end of the differential pressure compensation spring 3091 is attached to the base 304, the other end of the differential pressure compensation spring 3091 extends into the sliding plunger 307 and is attached to the inner end face of the sliding plunger 3082, the water-passing side PC sleeve 306 provides protection for the differential pressure compensation spring 3091, the limiting cylinder 3092 is arranged in the differential pressure compensation spring 3091, the limiting cylinder 3092 not only has the function of preventing the core elements formed by the telescopic rubber bellows 3081 from being excessively stretched, but also provides a guide and a fixing seat for the differential pressure compensation spring 3091, and the differential pressure compensation spring 3091 is prevented from excessively shaking when the equipment bumps or suffers from hydraulic impact. Lead to water side PC sleeve 306 and provide the protection for pressure differential compensation spring 3091, fluid volume change can clearly be seen to its transparent construction and sign scale, spacing section of thick bamboo 3092's one end is passed through spacing section of thick bamboo fastening bolt group 3093 and is set up at base 304, be equipped with a plurality of through-hole on spacing section of thick bamboo 3092, a large amount of through-holes have all been opened on base 304 and the spacing section of thick bamboo 3092, ensure that there is sufficient water business turn over and lead to water side PC sleeve 306, prevent to carry out instantaneous vacuum or superpressure environment, then the mounting hole of reserving on base 304 and the sealed lid 301 of hydraulic oil side can select the installation easily, according to the space during the convenience design, position is reserved in a flexible.
Specifically, the hydraulic oil side seal cover 301 and the hydraulic oil side telescopic bladder seal flange 302 are provided with seal grooves which can be installed in cooperation with the hydraulic oil side PC sleeve 305, O-shaped seal rings 314 are arranged in the seal grooves, the seal grooves are arranged on the opposite surfaces of the hydraulic oil side seal cover 301 and the hydraulic oil side telescopic bladder seal flange 302, the seal grooves are in an annular shape, and the O-shaped seal rings 314 are embedded in the seal grooves.
Specifically, the base 304 and the hydraulic oil side seal cover 301 are provided with a base 316 by a base plate fastening bolt group 315.
Specifically, a blocking cap 317 is provided at one end of the ball valve 311, so that foreign substances can be prevented from blocking the screw hole.
Specifically, the hydraulic oil side PC sleeve 305 and the water passage side PC sleeve 306 are made of transparent PC materials, and the base 304, the sliding plunger 307, the hydraulic oil side bellows seal flange 302, the water passage side bellows seal flange 303, and the hydraulic oil side seal cover 301 are made of polymer materials, and both the materials have high strength, wear resistance, corrosion resistance, and good impact resistance, and the reliability of the equipment is enhanced.
Specifically, the hydraulic oil side flexible bladder sealing flange 302 and the water side flexible bladder sealing flange 303 are flange-connected by the middle sealing flange fastening bolt group 318, the base 304, the hydraulic oil side flexible bladder sealing flange 302, the water side flexible bladder sealing flange 303 and the hydraulic oil side sealing cover 302 are fixedly connected by the main body through bolt group 319, thereby forming a water side chamber and a hydraulic oil side chamber, and a closed cabin is formed in the PC sleeve after the connection by the main body through bolt group 319,
specifically, the outer side wall of the hydraulic oil side seal cover 301 is provided with a product name plate 321 for identifying product information by a name plate fastening bolt group 320.
Specifically, the surface of the hydraulic oil side PC sleeve 305 is provided with a scale mark, which is obvious and enables the working state of the compensator to be visually seen.
The working principle is as follows: the utility model discloses in the flexible rubber leather bag 3081 that this pressure differential compensator's oil water interface compressed tightly through leading to the flexible leather bag sealing flange 303 of water side and the flexible leather bag sealing flange 302 of hydraulic pressure oil side separates, flexible rubber leather bag 3081 is connected with flexible rubber leather bag clamp plate 3082 and slip plunger 307 with flexible leather bag clamp plate fastening bolt group 3083, the core of whole compensator has been constituted, realize the volume change of hydraulic pressure oil side through its reciprocating motion, compensate the pressure differential change of hydraulic system during operation with this.
The hydraulic oil side is provided with a hydraulic oil side PC sleeve 305 and a hydraulic oil side sealing cover 301, the hydraulic oil side sealing cover 301 and the hydraulic oil side telescopic leather bag sealing flange 302 are provided with a sealing groove which can be installed by matching with the hydraulic oil side PC sleeve 305, an O-shaped sealing ring 314 is additionally arranged in the groove, and a sealed cabin is formed after the sealing groove is connected through a main body penetrating bolt group 319. Connect ball valve 313 through ball valve adapter 310, can connect pre-compaction equipment or pressure release, the stifled cap 317 of installation after pre-compaction or pressure release are accomplished can prevent that the screw thread mouth is blockked up to the foreign matter. The pressure sensor 312 has an IP rating of 68 and can meet underwater work requirements.
The side of leading to water has base 304 and spacing section of thick bamboo 3092, and spacing section of thick bamboo 3092 not only has the function that prevents the core component that flexible rubber leather bag 3081 constitutes and passes through flexible, still provides direction and fixing base for pressure difference compensation spring 3091, prevents that pressure difference compensation spring 3091 from excessively rocking when equipment is jolted or suffers hydraulic shock. The water side PC sleeve 306 provides protection for the differential pressure compensation spring 3091, and the oil volume change can be clearly seen through its transparent structure and its identification scale.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an underwater hydraulic system pressure differential compensator, sets up in desilting robot's installation cabin which characterized in that: the differential pressure compensator comprises a hydraulic oil side sealing cover (301), a hydraulic oil side telescopic leather bag sealing flange (302), a water side telescopic leather bag sealing flange (303) and a base (304), wherein a hydraulic oil side PC sleeve (305) is arranged on the side wall of the hydraulic oil side telescopic leather bag sealing flange (302) and the hydraulic oil side sealing cover (301), the hydraulic oil side telescopic leather bag sealing flange (302) is fixedly connected with the water side telescopic leather bag sealing flange (303), a water side PC sleeve (306) is arranged on the side wall of the water side telescopic leather bag sealing flange (303) and the side wall of the base (304), a sliding plunger (307) is connected in the hydraulic oil side PC sleeve (305) and the water side PC sleeve (306) in a sliding mode, a differential pressure reciprocating assembly (308) for pushing the sliding plunger (307) to move is arranged inside the hydraulic oil side PC sleeve (305), and a differential pressure spring assembly (309) for pushing the sliding plunger (307) to move is arranged on the water side PC sleeve (306), the lateral wall of the hydraulic oil side sealing cover (301) is connected with a ball valve adapter (310), an oil tank adapter (311) and a pressure sensor (312) in a penetrating mode through threads, one end of the ball valve adapter (310) is connected with a ball valve (313) in a threaded mode, and a plurality of through holes are formed in the base (304).
2. The differential pressure compensator of the underwater hydraulic system as claimed in claim 1, wherein: pressure differential subassembly (308) that reciprocates includes flexible rubber leather bag (3081) and flexible rubber leather bag clamp plate (3082), the one end setting of flexible rubber leather bag (3081) is on the flexible leather bag sealing flange of hydraulic pressure oil side (302) and the flexible leather bag sealing flange of water side (303), slip plunger (307) are located the one end of hydraulic pressure oil side PC sleeve (305) and stretch into in flexible rubber leather bag (3081), flexible rubber leather bag clamp plate (3082) are located flexible rubber leather bag (3081) and are close to on the terminal surface of the sealed lid of hydraulic pressure oil side (301), flexible rubber leather bag (3081) are through flexible leather bag clamp plate fastening bolt group (3083) and flexible rubber leather bag clamp plate (3082) and slip plunger (307) fixed connection.
3. The differential pressure compensator of the underwater hydraulic system as claimed in claim 1, wherein: pressure differential spring subassembly (309) is including pressure differential compensation spring (3091) and spacing section of thick bamboo (3092), the one end laminating of pressure differential compensation spring (3091) is on base (304), the other end of pressure differential compensation spring (3091) stretches into the inside of slip plunger (307) and the laminating is on the interior terminal surface of slip plunger (307), spacing section of thick bamboo (3092) set up in pressure differential compensation spring (3091) for provide the guide effect for pressure differential compensation spring (3091), the one end of spacing section of thick bamboo (3092) is passed through spacing section of thick bamboo fastening bolt group (3093) and is set up at base (304), be equipped with a plurality of through-hole on spacing section of thick bamboo (3092).
4. The differential pressure compensator of the underwater hydraulic system as claimed in claim 1, wherein: the hydraulic oil side sealing cover (301) and the hydraulic oil side telescopic leather bag sealing flange (302) are provided with sealing grooves matched with the installation of the hydraulic oil side PC sleeve (305), and O-shaped sealing rings (314) are arranged in the sealing grooves.
5. The differential pressure compensator of the underwater hydraulic system as claimed in claim 1, wherein: the base (304) and the hydraulic oil side sealing cover (301) are provided with a machine base (316) through a base plate fastening bolt group (315).
6. The differential pressure compensator of the underwater hydraulic system as claimed in claim 1, wherein: one end of the ball valve (313) is provided with a blocking cap (317) for preventing foreign matters from blocking a threaded opening of the ball valve (313).
7. The differential pressure compensator of the underwater hydraulic system as claimed in claim 1, wherein: the hydraulic oil side PC sleeve (305) and the water side PC sleeve (306) are made of transparent PC materials, and the base (304), the sliding plunger (307), the hydraulic oil side telescopic leather bag sealing flange (302), the water side telescopic leather bag sealing flange (303) and the hydraulic oil side sealing cover (301) are made of high polymer materials.
8. The differential pressure compensator of the underwater hydraulic system as claimed in claim 1, wherein: the hydraulic oil side telescopic leather bag sealing flange (302) is in flange connection with the water side telescopic leather bag sealing flange (303) through a middle sealing flange fastening bolt group (318), and the base (304), the hydraulic oil side telescopic leather bag sealing flange (302), the water side telescopic leather bag sealing flange (303) and the hydraulic oil side sealing cover (301) are fixedly connected through a main body through bolt group (319).
9. The differential pressure compensator of the underwater hydraulic system as claimed in claim 1, wherein: the outer side wall of the hydraulic oil side sealing cover (301) is provided with a product nameplate (321) through a nameplate fastening bolt group (320) for identifying product information.
10. The differential pressure compensator of the underwater hydraulic system as claimed in claim 1, wherein: the surface of the hydraulic oil side PC sleeve (305) is provided with identification scales.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020104877.6U CN211924637U (en) | 2020-01-17 | 2020-01-17 | Differential pressure compensator of underwater hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020104877.6U CN211924637U (en) | 2020-01-17 | 2020-01-17 | Differential pressure compensator of underwater hydraulic system |
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| CN211924637U true CN211924637U (en) | 2020-11-13 |
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| CN202020104877.6U Active CN211924637U (en) | 2020-01-17 | 2020-01-17 | Differential pressure compensator of underwater hydraulic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007180A (en) * | 2021-02-26 | 2021-06-22 | 中国船舶科学研究中心 | Underwater integrated hydraulic source |
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2020
- 2020-01-17 CN CN202020104877.6U patent/CN211924637U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007180A (en) * | 2021-02-26 | 2021-06-22 | 中国船舶科学研究中心 | Underwater integrated hydraulic source |
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Address after: No.18 Zhangba East Road, Yanta District, Xi'an City, Shaanxi Province Patentee after: POWERCHINA NORTHWEST ENGINEERING Co.,Ltd. Patentee after: China Power Construction (Xi'an) Ganghang Shipbuilding Technology Co., Ltd Address before: No.18 Zhangba East Road, Yanta District, Xi'an City, Shaanxi Province Patentee before: POWERCHINA NORTHWEST ENGINEERING Co.,Ltd. Patentee before: Gansu Zhongdian construction port and Shipping Engineering Co., Ltd |
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