CN111779878A

CN111779878A - Self-reset manual-hydraulic double-acting 90-degree rotary actuator

Info

Publication number: CN111779878A
Application number: CN202010625184.6A
Authority: CN
Inventors: 程敏; 张裕东; 吴建; 于可
Original assignee: Nantong Navigation Machinery Group Co ltd
Current assignee: Nantong Navigation Machinery Group Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2020-10-16

Abstract

The invention discloses a self-resetting manual-hydraulic double-acting 90-degree rotary actuator which comprises a gear-rack type hydraulic cylinder, a clutch type manual mechanism and a valve signal box, wherein the valve signal box is arranged at the upper end part of the clutch type manual mechanism, and the gear-rack type hydraulic cylinder is arranged below the clutch type manual mechanism.

Description

Self-reset manual-hydraulic double-acting 90-degree rotary actuator

Technical Field

The invention relates to the technical field of 90-degree rotary actuators, in particular to a self-resetting manual-hydraulic double-acting 90-degree rotary actuator.

Background

The ship industry in China is used for 30 years, a relatively complete industrial system is basically established on the basis of the first few and the second few, and the ship industry in China is developed into the third shipbuilding big country in the world which plays a great role in more than 20 years. With the rapid development of shipbuilding in the last 30 years, the tonnage of ships is from dozens of tons to dozens of ten thousand tons at present. The pipe system in the ship is more dense and complex, and the pipe system valve is also developed into a centralized control remote control valve from the original manual valve.

In the traditional manual-hydraulic double-acting 90-degree rotary actuator, the mutual switching between the local manual mode and the remote hydraulic mode can only be carried out on a local manual mechanism, so that in an extreme case, a crew cannot remotely operate the control valve in a hydraulic mode.

Disclosure of Invention

The invention aims to provide a self-resetting manual-hydraulic double-acting 90-degree rotary actuator to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a self-reset manual-hydraulic double-acting 90-degree rotary actuator comprises a gear-rack type hydraulic cylinder, a clutch type manual mechanism and a valve signal box, wherein the valve signal box is installed at the upper end part of the clutch type manual mechanism, and the gear-rack type hydraulic cylinder is arranged below the clutch type manual mechanism.

Preferably, the gear-rack type hydraulic cylinder comprises a rack plunger, a gear and a hydraulic cylinder box body, the rack plunger rod and the gear are both arranged in the hydraulic cylinder box body, the hydraulic cylinder box body is respectively provided with an oil inlet and an oil outlet, the rack plunger rod is matched with the gear, and the gear is connected with an external valve.

Preferably, separation and reunion formula manually-operated mechanism includes the shell body, installation worm wheel, worm, jaw formula input shaft, jaw formula separation and reunion axle sleeve, output shaft and conversion equipment in the shell body, the worm wheel is connected with the worm transmission, the worm wheel matches with the jaw formula input shaft, jaw formula input shaft and output shaft are connected, the output shaft outside is located to jaw formula separation and reunion axle sleeve, conversion equipment is still installed to output shaft one side, just still install limit switch on the shell body.

Preferably, a spring is further installed between the jaw clutch shaft sleeve and the inner wall of the outer shell.

Preferably, the using method comprises the following steps:

A. the hydraulic oil pushes the rack plunger to move linearly, and the rack plunger drives the gear to rotate and drives the 90-degree rotary valve to rotate. The gear rotates clockwise or anticlockwise by changing the flowing direction of the hydraulic oil, so that the purpose of opening and closing the valve is achieved;

B. an operator rotates the worm through the hand wheel to drive the worm wheel to rotate and act on the jaw type input shaft, the operation conversion device overcomes the spring force to enable the jaw type clutch shaft sleeve to be meshed with the jaw type input shaft, the input force of the worm is transmitted to the output shaft through the spline, the output shaft is connected with the valve through the gear inside the hydraulic cylinder, the force of the output shaft directly acts on the valve, and the limit switch is used for remotely monitoring whether the jaw type clutch shaft sleeve is in a meshed state or a separated state;

C. when the manual operation is carried out on site, the jaw clutch shaft sleeve and the jaw input shaft are in a meshed state, and the force input by the manual mechanism is transmitted to the output shaft and acts on the valve; during hydraulic operation, the jaw clutch shaft sleeve and the jaw input shaft are required to be in a disengaged state, so that the influence of the self-locking force of the worm wheel and the worm is eliminated, and a gear-rack in the hydraulic cylinder normally acts;

D. when the device is used on site, the position of the switching device can be switched manually, so that the aim of switching between manual operation and hydraulic operation is fulfilled;

E. when the clutch shaft sleeve is used remotely, the jaw clutch shaft sleeve is judged to be in an engaged or disengaged state through an indicator light on the signal box; if the hydraulic control device is in a disengaged state, hydraulic operation can be directly carried out;

F. if the gear box is in the meshing state, the remote hand-operated pump can be operated, the rack is pushed by hydraulic oil, the gear and the output shaft are driven to rotate, the friction force between the jaw clutch shaft sleeve and the jaw input shaft is reduced, the jaw clutch shaft sleeve moves downwards under the action of the spring force, and the indicator light on the signal box is lightened at that time, so that the jaw clutch shaft sleeve is in the disengaging state at the moment, and the action of a hydraulic operation switch valve can be performed.

Compared with the prior art, the invention has the beneficial effects that: the invention has novel structural design, and can remotely use the hydraulic device to switch the manual mode to the hydraulic mode, so that a crew can directly remotely operate the control valve in a hydraulic way after an accident occurs.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the operation of the rack and pinion hydraulic cylinder of the present invention;

fig. 3 is a schematic structural diagram of the clutch type manual mechanism of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a self-reset manual-hydraulic double-acting 90-degree rotary actuator comprises a gear-rack type hydraulic cylinder 1, a clutch type manual mechanism 2 and a valve signal box 3, wherein the valve signal box 3 is installed at the upper end part of the clutch type manual mechanism 2, and the gear-rack type hydraulic cylinder 1 is arranged below the clutch type manual mechanism 2. The double-acting gear-rack type hydraulic cylinder realizes remote opening and closing of the valve in a hydraulic mode. The clutch type manual mechanism realizes on-site valve opening and closing in a mechanical structure transmission mode, namely valve closing in a clockwise mode and valve opening in a counterclockwise mode, and has a self-locking function. The valve position signal box is used for displaying the opening and closing states of the valve on site and transmitting the position signal of the valve to the remote electric box through the internal limit switch.

According to the invention, the gear-rack type hydraulic cylinder 1 comprises a rack plunger rod 4, a gear 5 and a hydraulic cylinder box body 6, wherein the rack plunger rod 4 and the gear 5 are both arranged in the hydraulic cylinder box body 6, an oil inlet 7 and an oil outlet 8 are respectively arranged on the hydraulic cylinder box body 6, the rack plunger rod 4 is matched with the gear 5, and the gear 5 is connected with an external valve.

In the clutch type manual mechanism 2, the clutch type manual mechanism comprises an outer shell 9, a worm wheel 10, a worm 11, a jaw type input shaft 12, a jaw type clutch shaft sleeve 13, an output shaft 14 and a conversion device 15 are installed in the outer shell 9, the worm wheel 10 is in transmission connection with the worm 11, the worm wheel 10 is matched with the jaw type input shaft 12, the jaw type input shaft 12 is connected with the output shaft 14, the jaw type clutch shaft sleeve 13 is sleeved outside the output shaft 14, the conversion device 15 is further installed on one side of the output shaft 14, and a limit switch 16 is further installed on the outer shell 9.

The working principle is as follows: the using method of the invention comprises the following steps:

A. the hydraulic oil pushes the rack plunger to move linearly, and the rack plunger drives the gear to rotate and drives the valve to rotate. The gear rotates clockwise or anticlockwise by changing the flowing direction of the hydraulic oil, so that the purpose of opening and closing the valve is achieved;

In conclusion, the hydraulic control valve is novel in structural design, and the manual mode can be switched to the hydraulic mode by using the hydraulic device remotely, so that a crew can directly remotely operate the control valve in a hydraulic mode after an accident occurs.

The invention is not described in detail, but is well known to those skilled in the art.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A from two 90 rotary actuator of two effects of reset type manual-hydraulic pressure which characterized in that: the hydraulic control valve is characterized by comprising a gear-rack type hydraulic cylinder (1), a clutch type manual mechanism (2) and a valve signal box (3), wherein the valve signal box (3) is installed at the upper end part of the clutch type manual mechanism (2), and the gear-rack type hydraulic cylinder (1) is arranged below the clutch type manual mechanism (2).

2. A self-resetting manual-hydraulic double-acting 90 ° rotary actuator according to claim 1, wherein: the gear-rack type hydraulic cylinder (1) comprises a rack plunger (4), a gear (5) and a hydraulic cylinder box body (6), wherein the rack plunger (4) and the gear (5) are installed in the hydraulic cylinder box body (6), an oil inlet (7) and an oil outlet (8) are respectively arranged on the hydraulic cylinder box body (6), the rack plunger (4) is matched with the gear (5), and the gear (5) is connected with an external valve.

3. A self-resetting manual-hydraulic double-acting 90 ° rotary actuator according to claim 1, wherein: clutch type manual mechanism (2) include shell body (9), install worm wheel (10), worm (11), jaw formula input shaft (12), jaw formula separation and reunion axle sleeve (13), output shaft (14) and conversion equipment (15) in shell body (9), worm wheel (10) are connected with worm (11) transmission, worm wheel (10) and jaw formula input shaft (12) phase-match, jaw formula input shaft (12) are connected with output shaft (14), output shaft (14) outside is located to jaw formula separation and reunion axle sleeve (13) cover, conversion equipment (15) are still installed to output shaft (14) one side, just still install limit switch (16) on shell body (9).

4. A self-resetting manual-hydraulic double-acting 90 ° rotary actuator according to claim 3, wherein: and a spring (17) is also arranged between the jaw clutch shaft sleeve (13) and the inner wall of the outer shell (9).

5. Use of a self-resetting manual-hydraulic double-acting 90 ° rotary actuator according to claim 1, characterized in that: the using method comprises the following steps:

A. the hydraulic oil pushes the rack plunger to move linearly, and the rack plunger drives the gear to rotate and drives the valve to rotate by 90 degrees;

the gear rotates clockwise or anticlockwise by changing the flowing direction of the hydraulic oil, so that the purpose of opening and closing the valve is achieved;