CN214197505U - Anti-cracking hydraulic single-action actuating mechanism - Google Patents
Anti-cracking hydraulic single-action actuating mechanism Download PDFInfo
- Publication number
- CN214197505U CN214197505U CN202120218136.5U CN202120218136U CN214197505U CN 214197505 U CN214197505 U CN 214197505U CN 202120218136 U CN202120218136 U CN 202120218136U CN 214197505 U CN214197505 U CN 214197505U
- Authority
- CN
- China
- Prior art keywords
- shifting fork
- piston
- spring
- cylinder
- hydraulic
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a hydraulic single-action executing mechanism for preventing cracking, which comprises a shifting fork box, wherein the left end and the right end of the shifting fork box are respectively provided with a hydraulic cylinder and a spring cylinder, the lower end of the shifting fork box is provided with an output shaft, a first piston is arranged in the hydraulic cylinder, a second piston is arranged in the spring cylinder, a connecting rod is connected between the second piston and the first piston, a spring is sleeved on the connecting rod between the second piston and the shifting fork box, and a shifting fork is connected between the connecting rod in the shifting fork box and the output shaft; the anti-cracking hydraulic single-action executing mechanism of the utility model is operated by pulling the spring to move left by the first piston of the hydraulic cylinder to compress the spring, and the main force is concentrated on the shifting fork box, so that the end surface of the other end of the spring cylinder can not be subjected to the large spring force, and the welding spot is prevented from cracking and causing danger; in addition, the limiting bolt can enable the spring to be stopped at any position required by a user under the condition that the piston cylinder has no pressure, and the valve is prevented from acting when an accident happens.
Description
Technical Field
The utility model relates to a valve control technical field, specific theory especially relates to prevent hydraulic pressure single action actuating mechanism that ftractures.
Background
With the rapid development of national economy, the power and energy industry becomes the backbone industry of China. In thermal power plants, steam turbine generator units in the heart position are key equipment; on the energy line, oil and natural gas transportation is the life line of national economy; in mining and wind tunnel experiment bases and the above places, or other places with high safety and the like, how to ensure the safety, stability and reliability of the operation of upstream equipment is important, so that an intelligent valve actuating mechanism with stable and reliable operation and long service life is urgently needed to meet the requirements of the current society.
The hydraulic actuator is a device for controlling the opening and closing of a valve, and is widely applied to valve driving in petrochemical industry, metallurgy and the like. The output shaft of the valve can be driven to rotate through the hydraulic actuating mechanism of the valve, and when the hydraulic actuating mechanism is used for the valve which rotates, such as a ball valve, a butterfly valve, a plug valve and the like, the piston and the rack are integrated to push the output shaft with the gear to rotate by 90 degrees. When the piston is used for valves with linear reciprocating motion, such as stop valves, gate valves and the like, the piston is connected with a piston rod serving as an output shaft, two sealed chambers are formed on two sides of the piston, and compressed liquid in the chambers pushes the piston and the piston rod to do linear reciprocating motion.
At present, when an executing mechanism with a normal spring single action operates, an oil inlet at a left side oil port of a left hydraulic cylinder pushes a piston, and then a spring is compressed, so that the end face of the spring cylinder receives a large spring force, and the problem that a welding point of the end face cracks is solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent hydraulic pressure single action actuating mechanism that ftractures to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: prevent hydraulic pressure single-action actuating mechanism that ftractures, including the shift fork case, pneumatic cylinder, spring cylinder are installed respectively at both ends about the shift fork case, shift fork case lower extreme is equipped with the output shaft, be equipped with first piston in the pneumatic cylinder, be equipped with the second piston in the spring cylinder, be connected with the connecting rod between second piston and the first piston, the cover is equipped with the spring on the connecting rod between second piston and the shift fork case, the connecting rod passes pneumatic cylinder, shift fork case, spring cylinder, be connected with between the connecting rod of shift fork incasement and the output shaft and pull out the fork.
Preferably, a cylindrical pin is movably connected between the connecting rod and the shifting fork.
Preferably, a first oil port is formed in one end of the lower side of the hydraulic cylinder, and a second oil port is formed in the other end of the lower side of the hydraulic cylinder.
Preferably, one end, far away from the shifting fork box, of the spring cylinder is provided with a limiting bolt.
Preferably, the second piston and the first piston are circumferentially sleeved with rubber rings.
Preferably, the hydraulic cylinder, the spring cylinder and the shifting fork box are provided with holes matched with the connecting rod.
Preferably, the shifting fork boxes on the two sides of the shifting fork are respectively provided with a limiting column.
Has the advantages that: compared with the prior art, the beneficial effects of the utility model are that: when the anti-cracking hydraulic single-action executing mechanism runs, the spring is pulled to the left by the first piston of the hydraulic cylinder to compress the spring, and the main force is concentrated on the shifting fork box, so that the end face of the other end of the spring cylinder cannot be subjected to large spring force, and the welding spot of the spring cylinder is prevented from cracking to cause danger; in addition, the spring can be stopped at any position required by a user under the condition that the piston cylinder has no pressure through the arranged limiting bolt, so that the valve is prevented from acting when an accident happens; the utility model discloses an applicable environment and the wholeness ability of device have been improved greatly, and practical simple, safe and reliable, long service life easily promotes.
Drawings
Fig. 1 is the structure schematic diagram of the anti-cracking hydraulic single-acting actuator provided by the utility model.
In the drawings: the hydraulic control device comprises a shifting fork box 1, a hydraulic cylinder 2, a spring cylinder 3, an output shaft 4, a first piston 5, a second piston 6, a connecting rod 7, a spring 8, a shifting fork 9, a cylindrical pin 10, a first oil port 11, a second oil port 12, a limiting bolt 13, a rubber ring 14 and a limiting column 15.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Examples
Please refer to the attached drawings, in the embodiment of the present invention, the anti-cracking hydraulic single-acting actuator includes a shift fork box 1, a hydraulic cylinder 2 and a spring cylinder 3 are respectively installed at the left and right ends of the shift fork box 1, an output shaft 4 is arranged at the lower end of the shift fork box 1, a first piston 5 is arranged in the hydraulic cylinder 2, a second piston 6 is arranged in the spring cylinder 3, a connecting rod 7 is connected between the second piston 6 and the first piston 5, a spring 8 is sleeved on the connecting rod 7 between the second piston 6 and the shift fork box 1, the connecting rod 7 passes through the hydraulic cylinder 2, the shift fork box 1 and the spring cylinder 3, and a shifting fork 9 is connected between the connecting rod 7 in the shift fork box 1 and the output shaft 4.
Furthermore, a cylindrical pin 10 is movably connected between the connecting rod 7 and the shifting fork 9.
Further, 2 downside one end of pneumatic cylinder is equipped with first hydraulic fluid port 11, 2 downside other end of pneumatic cylinder is equipped with second hydraulic fluid port 12.
Furthermore, one end, far away from the shifting fork box 1, of the spring cylinder 3 is provided with a limiting bolt 13.
Furthermore, the second piston 6 and the first piston 5 are circumferentially sleeved with a rubber ring 14.
Furthermore, the hydraulic cylinder 2, the spring cylinder 3 and the shifting fork box 1 are provided with holes matched with the connecting rod 7.
Furthermore, the shifting fork boxes 1 on two sides of the shifting fork 9 are respectively provided with a limiting column 15.
The anti-cracking hydraulic single-action executing mechanism of the utility model is operated by pulling the spring to move left by the first piston of the hydraulic cylinder to compress the spring, and the main force is concentrated on the shifting fork box, so that the end surface of the other end of the spring cylinder can not be subjected to the large spring force, and the welding spot is prevented from cracking and causing danger; in addition, the spring can be stopped at any position required by a user under the condition that the piston cylinder has no pressure through the arranged limiting bolt, so that the valve is prevented from acting when an accident happens; the utility model discloses an applicable environment and the wholeness ability of device have been improved greatly, and practical simple, safe and reliable, long service life easily promotes.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; 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 according to specific situations by those skilled in the art.
Claims (7)
1. Prevent fracture hydraulic pressure single action actuating mechanism, its characterized in that: the automatic shifting fork device is characterized by comprising a shifting fork box, a hydraulic cylinder and a spring cylinder are respectively installed at the left end and the right end of the shifting fork box, an output shaft is arranged at the lower end of the shifting fork box, a first piston is arranged in the hydraulic cylinder, a second piston is arranged in the spring cylinder, a connecting rod is connected between the second piston and the first piston, a spring is sleeved on the connecting rod between the second piston and the shifting fork box, the connecting rod penetrates through the hydraulic cylinder, the shifting fork box and the spring cylinder, and a shifting fork is connected between the connecting rod in the shifting fork box and the output shaft.
2. The anti-splinter hydraulic single-acting actuator of claim 1, wherein: a cylindrical pin is movably connected between the connecting rod and the shifting fork.
3. The anti-splinter hydraulic single-acting actuator of claim 1, wherein: a first oil port is formed in one end of the lower side of the hydraulic cylinder, and a second oil port is formed in the other end of the lower side of the hydraulic cylinder.
4. The anti-splinter hydraulic single-acting actuator of claim 1, wherein: and one end of the spring cylinder, which is far away from the shifting fork box, is provided with a limiting bolt.
5. The anti-splinter hydraulic single-acting actuator of claim 1, wherein: rubber rings are sleeved on the periphery of the second piston and the first piston.
6. The anti-splinter hydraulic single-acting actuator of claim 1, wherein: and holes matched with the connecting rods are formed in the hydraulic cylinder, the spring cylinder and the shifting fork box.
7. The anti-splinter hydraulic single-acting actuator of claim 1, wherein: and the shifting fork boxes on the two sides of the shifting fork are respectively provided with a limiting column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120218136.5U CN214197505U (en) | 2021-01-26 | 2021-01-26 | Anti-cracking hydraulic single-action actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120218136.5U CN214197505U (en) | 2021-01-26 | 2021-01-26 | Anti-cracking hydraulic single-action actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214197505U true CN214197505U (en) | 2021-09-14 |
Family
ID=77637659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120218136.5U Active CN214197505U (en) | 2021-01-26 | 2021-01-26 | Anti-cracking hydraulic single-action actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214197505U (en) |
-
2021
- 2021-01-26 CN CN202120218136.5U patent/CN214197505U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104196784B (en) | A kind of cabin section integration electrohydraudic servomechanism | |
| CN2810016Y (en) | Electric push rod | |
| CN214197505U (en) | Anti-cracking hydraulic single-action actuating mechanism | |
| CN202381448U (en) | Hydraulic oil cylinder and hydraulic system | |
| CN110061271A (en) | A kind of damping type new energy battery with leakage warning function | |
| CN207246497U (en) | A kind of natural gas wellhead emergency shutoff device | |
| CN111425651B (en) | Energy accumulator reset servo direct-drive type angular travel rapid cut-off actuating mechanism | |
| CN102384299B (en) | Quick switching device for valve | |
| CN202302215U (en) | Rapid switching device for valve | |
| CN201616356U (en) | Electromagnetic blowdown valve used for pneumatic operating mechanism of circuit breaker | |
| CN217056489U (en) | Pressure relief device of multi-pin shearing structure | |
| CN202484392U (en) | Driving device for slow-opening and fast-closing safety valve | |
| CN104696565A (en) | Guide structure based anti-explosion valve | |
| CN211344082U (en) | Multi-rotation type hydraulic valve | |
| CN210461882U (en) | Pneumatic actuator containing hydraulic manual device | |
| CN204062098U (en) | A kind of drive unit of slow opening fast shutting safety valve | |
| CN104180049B (en) | The Drive And Its Driving Method of a kind of slow opening fast shutting safety valve | |
| CN210484763U (en) | Hydraulic actuating mechanism with shifting fork type buffering and quick-acting functions | |
| CN213512319U (en) | Diaphragm type closed system and accumulator composite driven switch type air pressure actuating mechanism | |
| CN216131162U (en) | Rotary hydraulic valve | |
| CN202900831U (en) | Electro-hydraulic push rod | |
| CN200975529Y (en) | Hydraulic steam extraction type back valve | |
| CN212273238U (en) | Pilot-operated type pneumatic control angle seat valve | |
| CN211737603U (en) | Gas-liquid combined rotary motion structure | |
| CN211474592U (en) | Hydraulic direct-insertion type in-place locking mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |