CN110608311B - Manual-automatic integrated hydraulic driver for marine valve and driving method - Google Patents
Manual-automatic integrated hydraulic driver for marine valve and driving method Download PDFInfo
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- CN110608311B CN110608311B CN201910664694.1A CN201910664694A CN110608311B CN 110608311 B CN110608311 B CN 110608311B CN 201910664694 A CN201910664694 A CN 201910664694A CN 110608311 B CN110608311 B CN 110608311B
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- 210000004907 gland Anatomy 0.000 claims description 24
- 238000003780 insertion Methods 0.000 claims description 24
- 230000037431 insertion Effects 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 18
- 230000001502 supplementing effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 239000003921 oil Substances 0.000 description 43
- 239000000047 product Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
- F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
- F16K31/163—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member the fluid acting on a piston
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- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
A manual-automatic hydraulic driver for ship valve and its driving method. The valve driving device comprises an executing element, wherein the executing element and a manual operation device form the valve driving device, the executing element consists of a shell and a gear shaft, an internal spline is arranged on the gear shaft and is connected with a driving shaft of the valve, the shell and the gear shaft are provided with a No. 1 needle bearing, the needle bearing is matched with a shaft shoulder of the gear shaft through a gasket, the No. 1 needle bearing is matched with the shaft shoulder of the shell through a retainer ring, an O-shaped ring is arranged between the retainer ring and the shell to seal, a No. 2 needle bearing is arranged between the gear shaft and a gland, the No. 2 needle bearing is matched with the shaft shoulder of the gland through the retainer ring, two travel switches are arranged above the gland and are fixed through screws, and a limiting ring is arranged on the gear shaft. The invention is used for the manual-automatic hydraulic driver of the marine valve.
Description
Technical Field
The invention relates to a manual-automatic hydraulic driver of a marine valve and a driving method.
Background
With the continuous development of industry, hydraulic transmission is widely applied, and the safety and reliability requirements of hydraulic driving are continuously improved. The wide application of the large-diameter valve on the marine vessel ensures that the torque required by opening and closing the valve is bigger and bigger, and the reliability requirement is also continuously improved. The existing valve driver mainly adopts hydraulic drive and can provide large output torque. But the valve actuator fails to function properly when the hydraulic components of the main circuit fail. Most of existing valve drivers are provided with a manually operated standby device, and when the hydraulic pressure of a main circuit fails, the normal action of a hydraulic actuator can be driven through manual operation. The existing manual operation device mostly adopts an independent power unit, hydraulic oil sources need to be provided independently, and the defects of high cost, large volume, inconvenience in operation and the like exist.
Disclosure of Invention
The invention aims to provide a manual-automatic hydraulic driver of a marine valve and a driving method thereof, wherein the manual-automatic hydraulic driver is simple and convenient to operate and does not need an external oil supply source.
The above object is achieved by the following technical scheme:
a manual-automatic hydraulic driver of a marine valve comprises an actuating element (1), wherein the actuating element (1) and a manual operation device (2) form a valve driving device, the actuating element (1) is composed of a shell (1.17) and a gear shaft (1.10), a mounting hole is formed in the shell (1.17) and is used for mounting the device, an internal spline (3) is arranged on the gear shaft (1.10) and is connected with a driving shaft (4) of the valve, a needle bearing (1.21) is arranged between one end of the shell (1.17) and one end of the gear shaft (1.10), one end of the needle bearing (1.21) is matched with a shaft shoulder of the gear shaft (1.10) through a gasket (1.12), the other end of the needle bearing (1.21) is matched with the shaft shoulder of the shell (1.17) through a mounting hole, an O-shaped ring (3) is arranged between the gear shaft (1.10) and the gear shaft (1.10), a needle bearing (1.21) is arranged between the other end of the retainer ring (1.15) and the shell (1.17) through the shaft shoulder of the needle bearing (1.21) through the gasket (1.12), and the needle bearing (1.21) is matched with the other end of the needle bearing (1.11) through the shaft shoulder of the needle bearing (1.21) through the shaft shoulder of the gasket (1.11), two travel switches (1.3) are arranged above the gland (1.11) and fixed through screws (1.39), and a limiting ring (1.2) is arranged on the gear shaft (1.10).
The marine valve manual-automatic integrated hydraulic driver is characterized in that an O-shaped ring (1.16) is arranged between the retainer ring (1.15) and the gland (1.11) for sealing, the gland (1.11) is fixed with the shell (1.17) through a screw (1.9), and an O-shaped ring (1.22) is arranged between the gland (1.11) and the shell (1.17) for sealing; the limiting ring (1.2) is fixed with the gear shaft (1.10) through the set screw (1.38), and the gear shaft (1.10) rotates to drive the limiting ring (1.2) to rotate so as to touch the travel switch (1.3) to send out signals; a top cover (1.1) is arranged outside the travel switch (1.3) for protection, an outlet of the travel switch (1.3) is arranged at the edge of the top cover (1.1), a stuffing box (1.23) is arranged on the outlet of the top cover (1.1), and the outlet of the travel switch (1.3) is sealed by stuffing through the stuffing box (1.23); the top cover (1.1) is fixed with the gland (1.11) through a screw (1.14), a top cover sealing gasket (1.24) is arranged between the top cover (1.1) and the gland (1.11), and an O-shaped ring (1.4) is arranged between the top cover (1.1) and the gear shaft (1.10) through clearance fit for sealing; the opening indication board (1.8) is arranged above the top cover (1.1) and fixed through the screw (1.5), and the opening pointer (1.7) is arranged at the end part of the gear shaft (1.10) and fixed through the countersunk screw (1.6).
The manual-automatic hydraulic driver of the marine valve is characterized in that teeth of the gear shaft (1.10) are matched with teeth of the gear rack (1.31), a sealing groove (1.30.1) and a guide ring groove (1.32.1) are formed in the gear rack (1.31), a piston seal (1.30) and a guide ring (1.32) are respectively arranged in the sealing groove and the guide ring groove of the gear rack (1.31), cylinder barrel covers (1.26) are arranged at two ends of the gear rack (1.31), the cylinder barrel covers (1.26) are fixed with the shell (1.17) through screws (1.25), and an O-shaped ring (1.33) and an O-shaped retainer ring (1.37) are arranged between the cylinder barrel covers (1.26) and the shell (1.17) for sealing; the center of cylinder gland (1.26) set up screw hole and fine setting screw (1.29) and pass through screw thread fit connection, fine setting screw (1.29) on set up O type circle slot (1.27.1) and axle circlip slot (1.34.1), O type circle (1.27) and O type circle retaining ring (1.34) are placed in the O type circle slot of fine setting screw (1.29) and are sealed with cylinder gland (1.26) cooperation, axle circlip (1.28) are placed in the axle circlip slot of fine setting screw (1.29) and carry out spacingly, fine setting screw (1.29) carry out the stroke of micro-adjusting rack (1.31) further adjust rotation angle of gear shaft (1.10).
The manual-automatic hydraulic driver of the marine valve is characterized in that the rack (1.31) divides a cylinder barrel of the shell (1.17) into an A cavity and a B cavity through two piston seals (1.30), and the rack (1.31) slides left and right in the shell (1.17) and drives the gear shaft (1.10) to do rotary motion; the A cavity and the B cavity of the shell (1.17) are provided with an exhaust threaded port (1.17.1) and an oil port (1.17.2), a combination pad (1.19) and an exhaust screw plug (1.18) are arranged at the exhaust port of the shell (1.17), the A cavity oil port of the shell (1.17) is connected with the A port of the manual operation device (2) through a pipe joint (1.20) and a pipe (1.36), and the B cavity oil port of the shell (1.17) is connected with the B port of the manual operation device (2) through a pipe joint (1.20) and a pipe (1.35); the manual operating device (2) is fixed with the shell (1.17) through a screw (1.13).
The manual operation device (2) of the manual hydraulic driver for the marine valve is composed of a stop valve (2.1), a manual reversing valve (2.2), an oil supplementing energy accumulator (2.3), a pressure reducing valve (2.4), an overflow valve (2.5), a manual pump (2.6), a shuttle valve (2.7), a one-way valve (2.8), a stop valve (2.9) and a valve block (2.10); an oil port A and an oil port B are arranged on the valve block (2.10); the stop valve (2.1) is connected through a threaded insertion hole on the valve block (2.10); the manual reversing valve (2.2) is connected through a threaded insertion hole on the valve block (2.10); the pressure reducing valve (2.4) is connected through a threaded insertion hole on the valve block (2.10); the overflow valve (2.5) is connected through a threaded insertion hole on the valve block (2.10); the manual pump (2.6) is connected through a threaded insertion hole on the valve block (2.10); the shuttle valve (2.7) is connected through a threaded insertion hole on the valve block (2.10); the one-way valve (2.8) is connected through a threaded insertion hole on the valve block (2.10); the stop valve (2.9) is connected through a threaded insertion hole on the valve block (2.10).
A driving method of manual-automatic integrated hydraulic driver of marine valve, in the automatic state, the main loop of the hydraulic system drives the executive component normally, the manual hydraulic valve group does not work; when the hydraulic main circuit fails, the main circuit is disconnected from the executing element through the stop valve, the manual operation device is connected with the executing element, the manual reversing valve reverses, the manual pump operates, the accumulator supplements oil, so that the oil in the cavity A of the driver enters the cavity B, the executing element is driven to work to open the valve, and vice versa.
Advantageous effects
1. The invention mainly solves the requirements of the marine valve on the reliability of the hydraulic system, and solves the problems that the existing manual standby device needs an independent oil source, is inconvenient to operate and occupies large installation space.
The hydraulic system main oil supply loop is simple and convenient to operate, an external oil supply source is not needed, the normal operation of the execution element under the fault state of the hydraulic system main oil supply loop can be realized without an external power station, the structure is compact, the occupied installation space is small, and the requirements of different working conditions on the reliability, the light weight and the compactness of the hydraulic system main oil supply loop are met.
Drawings
FIG. 1 is a schematic diagram of the structure of the product.
Fig. 2 is a view in the F-F direction of fig. 1.
Fig. 3 is a bottom view of fig. 1.
Fig. 4 is a D-D view of fig. 1.
Fig. 5 is a schematic structural view of the hidden top cover of the product.
Fig. 6 is an external view of the present product.
Fig. 7 is a schematic structural view of the manual operation device of the product.
Fig. 8 is a schematic view of the structure of the check valve in fig. 7.
Fig. 9 is a schematic view of the valve block of fig. 7.
Fig. 10 is an external view of the check valve of fig. 7.
Fig. 11 is an application diagram of the present product.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
A manual-automatic hydraulic driver of a marine valve comprises an actuating element (1), wherein the actuating element (1) and a manual operation device (2) form a valve driving device, the actuating element (1) is composed of a shell (1.17) and a gear shaft (1.10), a mounting hole is formed in the shell (1.17) and is used for mounting the device, an internal spline (3) is arranged on the gear shaft (1.10) and is connected with a driving shaft (4) of the valve, a needle bearing (1.21) is arranged between one end of the shell (1.17) and one end of the gear shaft (1.10), one end of the needle bearing (1.21) is matched with a shaft shoulder of the gear shaft (1.10) through a gasket (1.12), the other end of the needle bearing (1.21) is matched with the shaft shoulder of the shell (1.17) through a mounting hole, an O-shaped ring (3) is arranged between the gear shaft (1.10) and the gear shaft (1.10), a needle bearing (1.21) is arranged between the other end of the retainer ring (1.15) and the shell (1.17) through the shaft shoulder of the needle bearing (1.21) through the gasket (1.12), and the needle bearing (1.21) is matched with the other end of the needle bearing (1.11) through the shaft shoulder of the needle bearing (1.21) through the shaft shoulder of the gasket (1.11), two travel switches (1.3) are arranged above the gland (1.11) and fixed through screws (1.39), and a limiting ring (1.2) is arranged on the gear shaft (1.10).
Example 2
The manual-automatic hydraulic driver of the marine valve of the embodiment 1, wherein the O-shaped ring (1.16) is arranged between the retainer ring (1.15) and the gland (1.11), the gland (1.11) is fixed with the shell (1.17) through a screw (1.9), and the O-shaped ring (1.22) is arranged between the gland (1.11) and the shell (1.17); the limiting ring (1.2) is fixed with the gear shaft (1.10) through the set screw (1.38), and the gear shaft (1.10) rotates to drive the limiting ring (1.2) to rotate so as to touch the travel switch (1.3) to send out signals; a top cover (1.1) is arranged outside the travel switch (1.3) for protection, an outlet of the travel switch (1.3) is arranged at the edge of the top cover (1.1), a stuffing box (1.23) is arranged on the outlet of the top cover (1.1), and the outlet of the travel switch (1.3) is sealed by stuffing through the stuffing box (1.23); the top cover (1.1) is fixed with the gland (1.11) through a screw (1.14), a top cover sealing gasket (1.24) is arranged between the top cover (1.1) and the gland (1.11), and an O-shaped ring (1.4) is arranged between the top cover (1.1) and the gear shaft (1.10) through clearance fit for sealing; the opening indication board (1.8) is arranged above the top cover (1.1) and fixed through the screw (1.5), and the opening pointer (1.7) is arranged at the end part of the gear shaft (1.10) and fixed through the countersunk screw (1.6).
Example 3
The manual-automatic hydraulic driver of the marine valve according to embodiment 1 or 2, wherein the teeth of the gear shaft (1.10) are matched with the teeth of the gear rack (1.31), the gear rack (1.31) is provided with a sealing groove (1.30.1) and a guide ring groove (1.32.1), the piston seal (1.30) and the guide ring (1.32) are respectively arranged in the sealing groove and the guide ring groove of the gear rack (1.31), cylinder covers (1.26) are arranged at two ends of the gear rack (1.31), the cylinder covers (1.26) are fixed with the shell (1.17) through screws (1.25), and an O-shaped ring (1.33) and an O-shaped ring retainer ring (1.37) are arranged between the cylinder covers (1.26) and the shell (1.17) for sealing; the center of cylinder gland (1.26) set up screw hole and fine setting screw (1.29) and pass through screw thread fit connection, fine setting screw (1.29) on set up O type circle slot (1.27.1) and axle circlip slot (1.34.1), O type circle (1.27) and O type circle retaining ring (1.34) are placed in the O type circle slot of fine setting screw (1.29) and are sealed with cylinder gland (1.26) cooperation, axle circlip (1.28) are placed in the axle circlip slot of fine setting screw (1.29) and carry out spacingly, fine setting screw (1.29) carry out the stroke of micro-adjusting rack (1.31) further adjust rotation angle of gear shaft (1.10).
Example 4
In the manual-automatic hydraulic driver of the marine valve in embodiment 3, the rack (1.31) divides the cylinder barrel of the shell (1.17) into an A cavity and a B cavity through two piston seals (1.30), and the rack (1.31) slides left and right in the shell (1.17) and drives the gear shaft (1.10) to do rotary motion; the A cavity and the B cavity of the shell (1.17) are provided with an exhaust threaded port (1.17.1) and an oil port (1.17.2), a combination pad (1.19) and an exhaust screw plug (1.18) are arranged at the exhaust port of the shell (1.17), the A cavity oil port of the shell (1.17) is connected with the A port of the manual operation device (2) through a pipe joint (1.20) and a pipe (1.36), and the B cavity oil port of the shell (1.17) is connected with the B port of the manual operation device (2) through a pipe joint (1.20) and a pipe (1.35); the manual operating device (2) is fixed with the shell (1.17) through a screw (1.13).
Example 5
The manual-automatic hydraulic driver for the marine valve of the embodiment 4, wherein the manual operation device (2) consists of a stop valve (2.1), a manual reversing valve (2.2), an oil supplementing energy accumulator (2.3), a pressure reducing valve (2.4), an overflow valve (2.5), a manual pump (2.6), a shuttle valve (2.7), a one-way valve (2.8), a stop valve (2.9) and a valve block (2.10); an oil port A and an oil port B are arranged on the valve block (2.10); the stop valve (2.1) is connected through a threaded insertion hole on the valve block (2.10); the manual reversing valve (2.2) is connected through a threaded insertion hole on the valve block (2.10); the pressure reducing valve (2.4) is connected through a threaded insertion hole on the valve block (2.10); the overflow valve (2.5) is connected through a threaded insertion hole on the valve block (2.10); the manual pump (2.6) is connected through a threaded insertion hole on the valve block (2.10); the shuttle valve (2.7) is connected through a threaded insertion hole on the valve block (2.10); the one-way valve (2.8) is connected through a threaded insertion hole on the valve block (2.10); the stop valve (2.9) is connected through a threaded insertion hole on the valve block (2.10).
Example 6
A driving method of manual-automatic integrated hydraulic driver of marine valve, in the automatic state, the main loop of the hydraulic system drives the executive component normally, the manual hydraulic valve group does not work; when the hydraulic main circuit fails, the main circuit is disconnected from the executing element through the stop valve, the manual operation device is connected with the executing element, the manual reversing valve reverses, the manual pump operates, the accumulator supplements oil, so that the oil in the cavity A of the driver enters the cavity B, the executing element is driven to work to open the valve, and vice versa.
Example 7
The manual-automatic hydraulic actuator for a marine valve according to the above embodiment, in a normal state: when the executive component (1) works normally, the stop valves (3.1) and (3.2) are opened, the two stop valves (2.1) on the standby valve bank are closed, the stop valves (2.9) are opened, the main oil supply loop supplies oil, oil enters the cavity A, a part of oil enters the oil supplementing energy accumulator (2.3) through the shuttle valve (2.7) and the stop valve (2.9) of the pressure reducing valve (2.4), and the executive component (1) acts normally and vice versa.
Manual operation state: when the main loop fails, the stop valves (3.1) and (3.2) are closed, the stop valve (2.9) is closed, the stop valve (2.1) is opened, the manual reversing valve is reversed to the left position, the manual reversing valve is communicated with the manual reversing valve P and the manual reversing valve A, and the manual reversing valve T and the manual reversing valve B are communicated with the manual reversing valve B, at the moment, the manual reversing valve B (2.6) sucks oil in the cavity B of the executive component (1) through the cavity B stop valve (2.1), the manual reversing valve (2.2) and the one-way valve (2.8), and then enters the cavity A of the executive component (1) through the pump oil port of the manual reversing valve (2.6) and the cavity A stop valve (2.1), so that the executive component (1) acts, and vice versa. Because the oil has certain compressibility, the executive component (1) stores the oil lost by internal leakage and the like, the oil supplementing accumulator (2.3) can play a role in supplementing the oil in the process, so the volume of the oil supplementing accumulator can be small, and the occupied space is limited. During operation, when the manual pump (2.6) is pressurized to the set pressure of the overflow valve (2.5), oil at the pump port is recovered into the oil supplementing energy accumulator (2.3), and the stroke is circulated.
After the manual operation is finished and the main oil supply loop is repaired, the manual reversing valve is reversed to the middle position, and the stop valve (3.1), the stop valve (3.2), the stop valve (2.1), the stop valve (2.2) and the stop valve (2.9) are restored to the working state.
The whole manual operation process does not need an external oil supply source, the inherent oil in the A/B cavity of the actuating element (1) is utilized for circulating the oil, and the oil supplementing energy accumulator (2.3) only plays roles in supplementing the compressibility of the oil and the oil loss caused by internal leakage, so that the volume of the standby hydraulic valve group for the whole manual operation can be very small, the space is saved, and the operation is convenient.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (3)
1. A manual-automatic hydraulic driver of a marine valve comprises an actuating element (1) and is characterized in that the actuating element (1) and a manual operating device (2) form a valve driving device, the actuating element (1) is composed of a shell (1.17) and a gear shaft (1.10), a mounting hole is formed in the shell (1.17) and is used for mounting equipment, an internal spline (3) is arranged on the gear shaft (1.10) and is connected with a driving shaft (4) of the valve, a needle bearing (1.21) is arranged between one end of the shell (1.17) and one end of the gear shaft (1.10), one end of the needle bearing (1.21) is matched with a shaft shoulder of the gear shaft (1.10) through a gasket (1.12), the other end of the needle bearing (1.21) is matched with the shaft shoulder of the shell (1.17) through a retainer ring (1.15), an O-shaped needle bearing (16) is arranged between the retainer ring (1.15) and the shell (1.10) and is arranged between the other end of the retainer ring (1.17) and the gear shaft (1.16) and is matched with the shaft shoulder of the gear shaft (1.1.11.10), the needle bearing (1.21) is matched with the shaft shoulder of the other end of the needle bearing (1.21) through the needle bearing (1.12), two travel switches (1.3) are arranged above the gland (1.11) and fixed through screws (1.39), and a limiting ring (1.2) is arranged on the gear shaft (1.10);
the gear shaft (1.10) is matched with the gear of the gear rack (1.31), a sealing groove (1.30.1) and a guide ring groove (1.32.1) are formed in the gear rack (1.31), a piston seal (1.30) and a guide ring (1.32) are respectively arranged in the sealing groove and the guide ring groove of the gear rack (1.31), cylinder barrel pressing covers (1.26) are arranged at two ends of the gear rack (1.31), the cylinder barrel pressing covers (1.26) are fixed with the shell (1.17) through screws (1.25), and an O-shaped ring (1.33) and an O-shaped ring (1.37) are arranged between the cylinder barrel pressing covers (1.26) and the shell (1.17) for sealing; the center of the cylinder barrel gland (1.26) is provided with a threaded hole which is connected with the fine adjustment screw (1.29) through threaded fit, the fine adjustment screw (1.29) is provided with an O-shaped ring groove (1.27.1) and a shaft circlip groove (1.34.1), an O-shaped ring (1.27) and an O-shaped ring retainer ring (1.34) are placed in the O-shaped ring groove of the fine adjustment screw (1.29) to be matched with the cylinder barrel gland (1.26) for sealing, the shaft circlip (1.28) is placed in the shaft circlip groove of the fine adjustment screw (1.29) for limiting, and the fine adjustment screw (1.29) is used for carrying out micro adjustment on the travel of the rack (1.31) to further adjust the rotation angle of the gear shaft (1.10);
the rack (1.31) divides a cylinder barrel of the shell (1.17) into an A cavity and a B cavity through two piston seals (1.30), and the rack (1.31) slides left and right in the shell (1.17) and drives the gear shaft (1.10) to do rotary motion; the A cavity and the B cavity of the shell (1.17) are provided with an exhaust threaded port (1.17.1) and an oil port (1.17.2), a combination pad (1.19) and an exhaust screw plug (1.18) are arranged at the exhaust port of the shell (1.17), the A cavity oil port of the shell (1.17) is connected with the oil port A of the manual operation device (2) through a pipe joint (1.20) and a pipe (1.36), and the B cavity oil port of the shell (1.17) is connected with the oil port B of the manual operation device (2) through a pipe joint (1.20) and a pipe (1.35); the manual operation device (2) is fixed with the shell (1.17) through a screw (1.13);
the manual operation device (2) consists of a stop valve 2.1, a manual reversing valve (2.2), an oil supplementing energy accumulator (2.3), a pressure reducing valve (2.4), an overflow valve (2.5), a manual pump (2.6), a shuttle valve (2.7), a one-way valve (2.8), a stop valve 2.9 and a valve block (2.10); an oil port A and an oil port B are arranged on the valve block (2.10); the stop valve 2.1 is connected through a threaded insertion hole on the valve block (2.10); the manual reversing valve (2.2) is connected through a threaded insertion hole on the valve block (2.10); the pressure reducing valve (2.4) is connected through a threaded insertion hole on the valve block (2.10); the overflow valve (2.5) is connected through a threaded insertion hole on the valve block (2.10); the manual pump (2.6) is connected through a threaded insertion hole on the valve block (2.10); the shuttle valve (2.7) is connected through a threaded insertion hole on the valve block (2.10); the one-way valve (2.8) is connected through a threaded insertion hole on the valve block (2.10); the stop valve 2.9 is connected through a threaded insertion hole on the valve block (2.10);
when the executive component (1) works normally, the stop valve 3.1 and the stop valve 3.2 of the hydraulic main circuit are opened, the two stop valves 2.1 on the manual operation device are closed, the stop valve 2.9 is opened, the main oil supply circuit supplies oil, oil enters the cavity A, and part of the oil enters the oil supplementing energy accumulator (2.3) through the shuttle valve (2.7) and the stop valve 2.9 of the pressure reducing valve (2.4);
when the main loop fails, the stop valves 3.1 and 3.2 are closed, the stop valve 2.9 is closed, the stop valve 2.1 is opened, the manual reversing valve is reversed to the left position, the port P is communicated with the cavity A, the port T is communicated with the cavity B, at the moment, the oil in the cavity B of the executive component (1) is sucked through the stop valve 2.1, the manual reversing valve (2.2) and the one-way valve (2.8) of the cavity B by operating the handle of the manual pump (2.6), and then enters the cavity A of the executive component (1) through the pump oil port of the manual pump (2.6), the manual reversing valve (2.2) and the stop valve 2.1 of the cavity A, so that the executive component (1) is enabled to act.
2. The manual-automatic hydraulic driver of the marine valve according to claim 1, wherein the O-shaped ring (1.16) is arranged between the retainer ring (1.15) and the gland (1.11), the gland (1.11) is fixed with the shell (1.17) through a screw (1.9), and the O-shaped ring (1.22) is arranged between the gland (1.11) and the shell (1.17); the limiting ring (1.2) is fixed with the gear shaft (1.10) through the set screw (1.38), and the gear shaft (1.10) rotates to drive the limiting ring (1.2) to rotate so as to touch the travel switch (1.3) to send out signals; a top cover (1.1) is arranged outside the travel switch (1.3) for protection, an outlet of the travel switch (1.3) is arranged at the edge of the top cover (1.1), a stuffing box (1.23) is arranged on the outlet of the top cover (1.1), and the outlet of the travel switch (1.3) is sealed by stuffing through the stuffing box (1.23); the top cover (1.1) is fixed with the gland (1.11) through a screw (1.14), a top cover sealing gasket (1.24) is arranged between the top cover (1.1) and the gland (1.11), and an O-shaped ring (1.4) is arranged between the top cover (1.1) and the gear shaft (1.10) through clearance fit for sealing; the opening indication board (1.8) is arranged above the top cover (1.1) and fixed through the screw (1.5), and the opening pointer (1.7) is arranged at the end part of the gear shaft (1.10) and fixed through the countersunk screw (1.6).
3. The method of driving a manual-automatic hydraulic actuator of a marine valve according to claim 1, wherein the main circuit of the hydraulic system normally drives the actuator in an automatic state, and the manual operation device does not operate; when the hydraulic main circuit fails, the main circuit and the executing element are cut off through the stop valve 3.1 and the stop valve 3.2 of the hydraulic main circuit, the manual operation device is communicated with the executing element, the manual reversing valve reverses, the manual pump is used for operating, the accumulator is used for supplementing oil, so that the oil in the cavity A enters the cavity B, and the executing element is driven to work to open the valve.
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| CN201910664694.1A CN110608311B (en) | 2019-07-23 | 2019-07-23 | Manual-automatic integrated hydraulic driver for marine valve and driving method |
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| CN112610548A (en) * | 2020-12-09 | 2021-04-06 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Novel hydraulic device |
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