CN217761509U - Pitching safety valve group - Google Patents
Pitching safety valve group Download PDFInfo
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- CN217761509U CN217761509U CN202221744073.8U CN202221744073U CN217761509U CN 217761509 U CN217761509 U CN 217761509U CN 202221744073 U CN202221744073 U CN 202221744073U CN 217761509 U CN217761509 U CN 217761509U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a every single move safety valve group for the protection hydro-cylinder, including the action oil circuit, action oil circuit one end forms the business turn over hydraulic fluid port, and the other end forms the hydro-cylinder connector of being connected with the hydro-cylinder, the cluster is equipped with explosion-proof valve and liquid accuse check valve on the action oil circuit, and the action oil circuit is external to have the stop valve that can open and shut, and the action oil circuit passes through opening and shutting of stop valve and hydro-cylinder intercommunication or seal. The utility model discloses a every single move safety valve group, through the stop valve that can open and shut with the hydro-cylinder hard tube coupling, when the hydro-cylinder is changed in the maintenance, fill new oil to the hydro-cylinder through the stop valve, can not produce hydraulic oil and be excessive, need carminative operation behind the new hydro-cylinder of can avoiding more renew, reinforcing equipment maintenance security, the pressure release that can the pertinence when changing oil pipe and hydro-cylinder prevents that the greasy dirt from spouting the pollution that causes in disorder.
Description
Technical Field
The utility model relates to a relief valve technical field especially relates to a every single move safety valve group.
Background
The safety valve is a special branch in the valve, the particularity of the safety valve is that the safety valve is different from other valves and only plays a role of opening and closing, more importantly, the safety of equipment can be protected, along with the rapid development of economic construction in China, equipment projects with pressure control are more and more, and in view of the requirement of equipment pressure relief, the safety valve plays a vital role in the process of protecting the equipment.
Wherein, in mine, port machine every single move hydraulic system (for example hydraulic system such as stocker, reclaimer, shipment machine), the safety valve group can the direct mount on the hydro-cylinder, and every single move hydraulic system controlgear becomes width of cloth and goes up and down in order to work at different altitudes, and when hydraulic system goes wrong, if do not have the safety valve group, the hydro-cylinder can not the pressurize, can cause equipment to lose to support or pulling force leads to tipping, leads to major incident.
The safety valve group used in the pitching hydraulic system at present is a combined valve formed by integrating various valves such as a one-way valve, an overflow valve, an explosion-proof valve and the like, but the existing safety valve group generally cannot be provided with the function of pressure relief of a single oil cylinder due to the structural complexity, when oil pipes and oil cylinders are maintained and replaced, the phenomenon of oil stain random spraying can be caused, the safety of maintenance personnel can not be protected, the valve group generally cannot realize independent self-locking of the oil cylinders, the oil cylinders are not fully protected, meanwhile, the oil pipes connected in the valve group are provided with independent control loops, the structure is complex, and the cost is high.
Therefore, in combination with the above existing technical problems, there is a need to provide a new technical solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can reduce the greasy dirt in disorder spout the phenomenon, to the protection of hydro-cylinder more abundant, also can not produce hydraulic oil excessive and the structure is simpler, the higher every single move safety valve group of security when changing the hydro-cylinder.
In order to solve the technical problem, the utility model provides a every single move safety valve group, concrete technical scheme is as follows:
the pitching safety valve bank is used for protecting an oil cylinder and comprises an action oil way, wherein one end of the action oil way forms an oil inlet and an oil outlet, the other end of the action oil way forms an oil cylinder connecting port connected with the oil cylinder, an explosion-proof valve and a hydraulic control one-way valve are serially arranged on the action oil way, an openable stop valve is externally connected to the action oil way, and the action oil way is communicated or sealed with the oil cylinder through the opening and closing of the stop valve.
Preferably, the action oil path comprises a pitch action oil path for controlling the oil cylinder to perform pitch expansion and a pitch expansion, the oil inlet and outlet comprises a first oil inlet and outlet and a second oil outlet, the oil cylinder connectors comprise a first oil cylinder connector and a second oil cylinder connector, the first oil inlet and outlet and the first oil cylinder connector are respectively located at two ends of the pitch action oil path, the second oil inlet and outlet and the second oil cylinder connector are respectively located at two ends of the pitch action oil path, and the two stop valves are respectively connected with the pitch action oil path and the pitch action oil path.
Preferably, the downward-moving oil path and the upward-moving oil path are both provided with an explosion-proof valve, a first hydraulic control one-way valve is arranged between the explosion-proof valve on the downward-moving oil path and the first oil cylinder connecting port, and a second hydraulic control one-way valve is arranged between the explosion-proof valve on the upward-moving oil path and the second oil cylinder connecting port.
Preferably, two hydraulic control oil paths are further connected between the downward action oil path and the upward action oil path, one end of one hydraulic control oil path is connected with the second hydraulic control one-way valve, and the other end of one hydraulic control oil path is located between the first hydraulic control one-way valve and the explosion-proof valve on the downward action oil path; one end of the other hydraulic control oil way is connected with the first hydraulic control one-way valve, and the other end of the other hydraulic control oil way is positioned between the second hydraulic control one-way valve and the anti-explosion valve on the upward acting oil way.
Preferably, the pitching safety valve bank further comprises an oil supplementing port for supplementing pressure oil, and the oil supplementing port is connected with the hydraulic control one-way valve.
Preferably, the downward-acting oil path and the upward-acting oil path are respectively externally connected with a one-way valve, each one-way valve is further externally connected with an overflow valve serving as a safety valve under an overpressure state of the oil cylinder, an oil inlet end of each one-way valve is connected with the oil supplementing port, and an oil outlet end of each one-way valve is connected with the acting oil path between the hydraulic control one-way valve and the oil cylinder connecting port.
Preferably, the action oil path is externally connected with two pressure measuring interfaces which are respectively connected with the downward action oil path and the upward action oil path, and the connection point is positioned between the hydraulic control one-way valve and the oil cylinder connection port.
Preferably, all the parts of the pitch safety valve group are connected through hoses to form an action oil path, and the stop valve is connected with the oil cylinder through a hard pipe.
The utility model discloses a every single move safety valve group has following beneficial effect:
the utility model discloses a every single move safety valve group, through the stop valve that can open and shut with the hydro-cylinder hard tube connected, when the hydro-cylinder is changed in the maintenance, pour into new oil through the stop valve to the hydro-cylinder, can not produce hydraulic oil excessive, can avoid the operation that needs the exhaust after changing new hydro-cylinder, the enhancement equipment maintenance security, and the safety valve group can carry out the pressure release to single hydro-cylinder, can the pertinence pressure release when changing oil pipe and hydro-cylinder, prevent the pollution that the greasy dirt spouts in disorder and cause, improve maintenance personal security, simultaneously, because the simple reasonable structure of safety valve group, make every hydro-cylinder all can independently from the lock, can not rely on the check valve completely, can cooperate the check valve to form double protection to the hydro-cylinder;
additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an oil path structure of a pitch relief valve set.
Wherein, 1 a-depression action oil path; 1 b-upward acting oil path; 1 c-hydraulic control oil way; 2-oil inlet and outlet; 2 a-a first oil inlet and outlet; 2 b-a second oil inlet and outlet; 3-an explosion-proof valve; 4 a-a first pilot operated check valve; 4 b-a second hydraulically controlled one-way valve; 5-a one-way valve; 6-overflow valve; 7-a stop valve; 8 a-a first cylinder connection port; 8 b-a second oil cylinder connecting port; 9-oil supplementing port; 10-pressure measuring interface.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.
Examples
Referring to fig. 1, a pitching safety valve set for protecting an oil cylinder comprises an action oil path, wherein one end of the action oil path forms an oil inlet/outlet 2, the other end of the action oil path forms an oil cylinder connecting port connected with the oil cylinder, an explosion-proof valve 3 and a hydraulic control one-way valve are connected in series on the action oil path, the action oil path is externally connected with a stop valve 7 which can be opened and closed, and the action oil path is communicated with or closed by the oil cylinder through the opening and closing of the stop valve.
The action oil circuit comprises a depression action oil circuit 1a for controlling the oil cylinder to perform depression expansion and a pitch action oil circuit 1b for controlling the oil cylinder to perform pitch expansion, the oil inlet and outlet 2 comprises a first oil inlet and outlet 2a and a second oil outlet 2b, the oil cylinder connectors comprise a first oil cylinder connector 8a and a second oil cylinder connector 8b, the first oil inlet and outlet 2a and the first oil cylinder connector 8a are respectively located at two ends of the depression action oil circuit 1a, the second oil inlet and outlet 2b and the second oil cylinder connector 8b are respectively located at two ends of the pitch action oil circuit 1b, and the stop valves 7 are two and are respectively connected with the depression action oil circuit and the pitch action oil circuit.
Explosion-proof valves 3 are arranged on the downward action oil way and the upward action oil way, a first hydraulic control one-way valve 4a is arranged between the explosion-proof valve on the downward action oil way and the first oil cylinder connecting port, and a second hydraulic control one-way valve 4b is arranged between the explosion-proof valve on the upward action oil way and the second oil cylinder connecting port.
A hydraulic control oil way 1c is further connected between the downward action oil way 1a and the upward action oil way 1b, two hydraulic control oil ways are provided, one end of one hydraulic control oil way is connected with the second hydraulic control one-way valve 4b, and the other end of the hydraulic control oil way is positioned between the first hydraulic control one-way valve and the explosion-proof valve on the downward action oil way; one end of the other hydraulic control oil way is connected with the first hydraulic control one-way valve 4a, and the other end of the other hydraulic control oil way is positioned between the second hydraulic control one-way valve and the anti-explosion valve on the upward movement oil way.
The pitching safety valve bank further comprises an oil supplementing port 9 used for supplementing pressure oil, and the oil supplementing port is connected with a hydraulic control one-way valve.
The downward action oil way and the upward action oil way are respectively externally connected with a one-way valve 5, each one-way valve is externally connected with an overflow valve 6 which is used as a safety valve under the overpressure state of the oil cylinder, the oil inlet end of the one-way valve is connected with an oil supplementing port 9, and the oil outlet end of the one-way valve is connected with the action oil way between the hydraulic control one-way valve and the oil cylinder connecting port.
The action oil path is externally connected with two pressure measuring interfaces 10 which are respectively connected with the downward action oil path and the upward action oil path, and the connecting point is positioned between the hydraulic control one-way valve and the oil cylinder connecting port.
All parts of the pitching safety valve set are connected through hoses to form an action oil path, and the stop valve 7 is connected with the oil cylinder through a hard pipe.
The pitching safety valve bank of the embodiment has the working principle that when hydraulic oil enters the action oil path from the oil inlet/outlet port 2 and passes through the explosion-proof valve 3, the hydraulic oil pushes the hydraulic control one-way valve to act and then enters the oil cylinder from the oil cylinder connecting port, and the hydraulic oil is distinguished according to the downward action oil path or the upward action oil path where the hydraulic oil enters, so that the oil cylinder performs downward or upward telescopic action; when no hydraulic oil exists in the action oil way, the hydraulic control one-way valve carries out self-locking pressure maintaining on the action oil way; if the oil cylinder is impacted, the check valve 5 is used for supplementing oil through the oil supplementing port 9 to prevent the oil cylinder from being over-pressurized, and the overflow valve 6 plays a role of a safety valve relative to the check valve 5; when the pipeline bursts and runs uncontrollably, the anti-explosion valve 3 can stop the running of the oil cylinder to prevent the oil cylinder from running out of control; when the oil cylinder is overhauled, the stop valve 7 corresponding to the downward action oil way or the upward action oil way is opened, the corresponding oil cylinder can be decompressed, and high-pressure oil is prevented from being sprayed to the body of an overhauling person in the process of disassembling the oil pipe.
The utility model has the advantages that: through the stop valve that can open and shut with the hydro-cylinder hard tube connection, when the hydro-cylinder is changed in the maintenance, pour into new oil to the hydro-cylinder through the stop valve, can not produce hydraulic oil excessive, need carminative operation behind the new hydro-cylinder of can avoiding changing, the safety of equipment maintenance is strengthened, and the safety valve group can carry out the pressure release to single hydro-cylinder, the pressure release that can the pertinence when changing oil pipe and hydro-cylinder, prevent the pollution that the greasy dirt was spout in disorder and is caused, improve the maintenance personal security, and simultaneously, because the simple reasonable structure of safety valve group, make every hydro-cylinder all can independent auto-lock, can not rely on the check valve completely, can cooperate the check valve to form duplicate protection to the hydro-cylinder.
While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, and alterations to the above embodiments may occur to those of ordinary skill in the art without departing from the scope of the present invention.
Claims (8)
1. The utility model provides a every single move safety valve group for the protection hydro-cylinder, its characterized in that: the oil cylinder connecting structure comprises an action oil way, wherein an oil inlet and an oil outlet (2) are formed at one end of the action oil way, an oil cylinder connecting port connected with an oil cylinder is formed at the other end of the action oil way, an explosion-proof valve (3) and a hydraulic control one-way valve are connected on the action oil way in series, an openable stop valve (7) is connected outside the action oil way, and the action oil way is communicated or sealed with the oil cylinder through the opening and closing of the stop valve.
2. The set of pitch relief valves of claim 1, wherein: the action oil circuit comprises a depression action oil circuit (1 a) for depression to stretch out and draw back and a facing action oil circuit (1 b) for facing up to stretch out and draw back for control oil cylinder to do facing up to stretch out and draw back, an oil inlet and outlet (2) comprises a first oil inlet and outlet (2 a) and a second oil inlet and outlet (2 b), the oil cylinder connectors comprise a first oil cylinder connector (8 a) and a second oil cylinder connector (8 b), the first oil inlet and outlet (2 a) and the first oil cylinder connector (8 a) are respectively located at two ends of the depression action oil circuit (1 a), the second oil inlet and outlet (2 b) and the second oil cylinder connector (8 b) are respectively located at two ends of the facing action oil circuit (1 b), and two stop valves (7) are respectively connected with the depression action oil circuit and the facing up action oil circuit.
3. The set of pitch relief valves of claim 2, wherein: the anti-explosion valve (3) is arranged on each of the downward-moving oil way and the upward-moving oil way, a first hydraulic control one-way valve (4 a) is arranged between the anti-explosion valve on the downward-moving oil way and the first oil cylinder connecting port, and a second hydraulic control one-way valve (4 b) is arranged between the anti-explosion valve on the upward-moving oil way and the second oil cylinder connecting port.
4. The set of pitch relief valves of claim 3, wherein: two hydraulic control oil ways (1 c) are further connected between the downward action oil way (1 a) and the upward action oil way (1 b), one end of one hydraulic control oil way is connected with the second hydraulic control one-way valve (4 b), and the other end of one hydraulic control oil way is located between the first hydraulic control one-way valve and the explosion-proof valve on the downward action oil way; one end of the other hydraulic control oil way is connected with the first hydraulic control one-way valve (4 a), and the other end of the other hydraulic control oil way is positioned between the second hydraulic control one-way valve and the anti-explosion valve on the upward movement oil way.
5. The set of pitch relief valves of claim 4, wherein: the pitching safety valve bank further comprises an oil supplementing port (9) used for supplementing pressure oil, and the oil supplementing port is connected with a hydraulic control one-way valve.
6. The set of pitch relief valves of claim 5, wherein: the downward action oil circuit and the upward action oil circuit are respectively externally connected with a one-way valve (5), each one-way valve is externally connected with an overflow valve (6) which is used as a safety valve under the overpressure state of the oil cylinder, the oil inlet end of each one-way valve is connected with an oil supplementing port (9), and the oil outlet end of each one-way valve is connected with the action oil circuit between the hydraulic control one-way valve and the oil cylinder connecting port.
7. The set of pitch relief valves of claim 6, wherein: the hydraulic control oil cylinder is characterized in that the action oil path is externally connected with two pressure measuring interfaces (10), the two pressure measuring interfaces are respectively connected with the downward action oil path and the upward action oil path, and the connecting point is positioned between the hydraulic control one-way valve and the oil cylinder connecting port.
8. The set of pitch relief valves according to any of claims 1-7, wherein: all parts of the pitching safety valve group are connected through hoses to form an action oil path, and the stop valve (7) is connected with the oil cylinder through a hard pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221744073.8U CN217761509U (en) | 2022-07-08 | 2022-07-08 | Pitching safety valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221744073.8U CN217761509U (en) | 2022-07-08 | 2022-07-08 | Pitching safety valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217761509U true CN217761509U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221744073.8U Active CN217761509U (en) | 2022-07-08 | 2022-07-08 | Pitching safety valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217761509U (en) |
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2022
- 2022-07-08 CN CN202221744073.8U patent/CN217761509U/en active Active
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