CN212455023U - Stacked electromagnetic pressure reducing valve - Google Patents
Stacked electromagnetic pressure reducing valve Download PDFInfo
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- CN212455023U CN212455023U CN202020610602.XU CN202020610602U CN212455023U CN 212455023 U CN212455023 U CN 212455023U CN 202020610602 U CN202020610602 U CN 202020610602U CN 212455023 U CN212455023 U CN 212455023U
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- pressure reducing
- valve
- reducing valve
- sleeve
- valve body
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Abstract
The utility model discloses a stack formula electromagnetism relief pressure valve, wherein, including the stack valve piece, reach screw-in cartridge pilot-operated relief pressure valve and screw-in cartridge formula electromagnetism ooff valve that are connected respectively at stack valve piece both ends. The utility model discloses it is compacter to have the structure, and it is more convenient to install, and the controllability is more increased, reaches the simplified system simultaneously, reduces the system installation space, practices thrift the effect of cost.
Description
Technical Field
The utility model relates to a hydraulic machine technical field, in particular to a stack formula electromagnetic pressure reducing valve for hydraulic circuit pressure control.
Background
The hydraulic valve is an important component of a hydraulic system, and is a simple or complex hydraulic system. Whether the performance of the hydraulic valve is reliable is a problem related to whether the whole hydraulic system can work normally.
The hydraulic valve is used for controlling the flow direction of oil in a hydraulic system or regulating pressure and flow, and thus can be divided into three categories, namely a directional valve, a pressure valve and a flow valve. A valve with the same shape may have different functions due to different mechanisms of action. The pressure valve and the flow valve control the pressure and the flow of the system by the throttling action of the through-flow section, and the direction valve controls the flow direction of the oil by the replacement of the through-flow passage. Although hydraulic valves exist in a variety of different types, they remain a few points of substantial commonality. Structurally, all valves are composed of a valve body, a valve core, an element for driving the valve core to act, and components (such as a spring, an electromagnet and the like); in operation, the relationship between the size of the opening of all the valves, the pressure differential between the inlet and outlet of the valves, and the flow through the valves, is in accordance with the orifice flow equation, with the only difference being the parameters for the various valves. The basic requirements on the hydraulic valve are that the action is sensitive, the use is reliable, and the impact and the vibration are small during the work; the pressure loss of the oil flowing through is small; the sealing performance is good; compact structure, convenient installation, adjustment, use and maintenance and high universality. In a hydraulic system needing to realize the functions of the two-section type pressure reducing valve, the combination of various different hydraulic valves is often needed to meet the requirements of the existing design functions, the control mode is complex, the operability is low, and meanwhile, the space of the hydraulic system is wasted. Therefore, when the same function is required to be realized in a hydraulic system, the existing hydraulic valve has the defects of complex control mode, low operability and poor control precision by adopting a valve combination. If the replacement type hydraulic valve is adopted, a complex oil path block is often required to be designed, the installation space is large, the integration degree is low, and the manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, an object of the utility model is to provide a structure is compacter, and it is more convenient to install, and the controllability is more heightened, reaches the simplified system simultaneously, reduces the system installation space, practices thrift the stack formula electromagnetic relief pressure valve of cost.
In order to achieve the above object, the utility model provides a pair of stack formula electromagnetism relief pressure valve, it, including the stack valve block, and screw thread cartridge pilot operated relief pressure valve and screw thread cartridge formula electromagnetism ooff valve that are connected respectively at stack valve block both ends. The superposition valve block comprises a superposition valve body and an oil way arranged on the superposition valve body. The thread-inserted pilot-operated type pressure reducing valve comprises a first groove which is arranged on one side of a superposed valve body and communicated with an oil way, a pressure reducing valve sleeve which is arranged in the first groove and communicated with the oil way, a pressure reducing valve core which is arranged in the pressure reducing valve sleeve, a pressure reducing valve body which is arranged between the pressure reducing valve sleeve and the first groove, a pilot valve seat which is connected with the end part of the pressure reducing valve sleeve and is arranged in the pressure reducing valve body, a spring sleeve which is arranged on the inner side of the pressure reducing valve body, a pressure reducing adjusting rod which is connected with the end part of the pressure reducing valve body and extends into the pressure reducing valve body, a pressure adjusting spring which is arranged between the spring sleeve in the pressure reducing valve body and the pressure reducing adjusting rod, spring seats which are respectively arranged at two ends of the pressure adjusting spring, a valve core. A first check ring and a first traveling ring are arranged between the pressure reducing valve body and the pressure reducing adjusting rod. And a second check ring and a second row ring are arranged between the pressure reducing valve body and the first groove. And a third retaining ring and a third coil are arranged between the pressure reducing valve body and the pilot valve seat. A fourth retaining ring and a fourth coil are arranged on the other side between the pressure reducing valve body and the pressure reducing adjusting rod. And a fifth check ring and a fifth coil are arranged between the pilot valve seat and the spring sleeve. And a sixth retaining ring and a sixth row of rings are arranged between the spring sleeve and the first groove. The thread plug-in type electromagnetic switch valve comprises a second groove which is arranged on the other side of the superposed valve body and communicated with an oil path, a reversing valve sleeve arranged in the second groove, a reversing valve core arranged in the reversing valve sleeve, a guide valve core arranged in the reversing valve core, a guide valve core reset spring arranged between the reversing valve core and the guide valve core, a magnetic conduction sleeve arranged on the end part of the second groove, an armature arranged between the magnetic conduction sleeve and the guide valve core, an armature reset spring arranged between the armature and the magnetic conduction sleeve, a coil wound on the magnetic conduction sleeve, and a locking nut arranged on one side end of the coil and connected with the coil and the magnetic conduction sleeve. And a seventh check ring and a seventh coil are arranged between the second groove and the reversing valve sleeve.
In some embodiments, the pressure reducing adjusting rod is in threaded connection with the pressure reducing valve body and is sealed by the first check ring and the first moving ring, the pressure reducing valve body is connected with the pressure reducing valve sleeve clamp spring, and other parts are all movable.
In some embodiments, the pressure reducing regulating rod is provided with a lock nut connected with the pressure reducing valve body, and the lock nut is used for fixing the displacement of the regulating rod.
In some embodiments, the reversing valve sleeve and the magnetic sleeve are in threaded connection, and the other parts are movable parts.
The beneficial effects of the utility model are that it is compacter to have the structure, and it is more convenient to install, and the nature of can controlling more increases, reaches the simplified system simultaneously, reduces the system installation space, practices thrift the effect of cost. Due to the fact that the overlapped structure is adopted, the valve bank is directly overlapped on a needed valve bank, optimization and improvement of a system loop are convenient and fast, time for making a transition block and limitation on installation space are saved compared with a traditional plate type electromagnetic pressure reducing valve, oil path design is reduced for design of a new system loop, an oil path is clear, a designer is enabled to be simpler and more convenient in the drawing process of the oil path plate, workload of the designer is reduced, and installation space of the valve bank is also saved. So that the labor cost, the material cost and the space cost are fundamentally saved. When the pilot pressure relief valve is applied, the switching between the system pressure and the set secondary pressure is realized by controlling the opening and closing of the oil discharge port of the pilot pressure relief valve. The valve is similar to a common superposition valve, and the bolt is fixed at an optional position between the electromagnetic directional valve and the oil circuit block and cannot influence the functions of other superposition valves. The screw thread plug-in mounting electromagnetic switch valve is a constant value pressure reducing valve which can control an electromagnetic valve to obtain two pressures. The function of a fixed-value pressure reducing valve is to keep its outlet pressure substantially constant under different conditions (different inlet pressures or different flow rates). When a constant pressure (secondary pressure) lower than the pressure (primary pressure) of the main oil path is required in a positioning and clamping device of a hydraulic system such as a machine tool, the use of a fixed-value pressure reducing valve is an option for saving equipment cost. Therefore, fixed-value pressure reducing valves are widely used in hydraulic systems. Therefore, the structure is more compact, the installation is more convenient, the controllability is higher, and the effects of simplifying the system, reducing the system installation space and saving the cost are achieved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following describes the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1, the stacked electromagnetic pressure reducing valve includes a stacked valve block 12, and a threaded cartridge pilot type pressure reducing valve and a threaded cartridge electromagnetic switch valve respectively connected to two ends of the stacked valve block 12. The superposition valve block 12 comprises a superposition valve body and an oil path arranged on the superposition valve body. The thread-inserted pilot type reducing valve comprises a first groove 34 communicated with an oil way arranged on one side of a superposed valve body, a pressure reducing valve sleeve 10 communicated with the oil way arranged in the first groove 34, a pressure reducing valve core 11 arranged in the pressure reducing valve sleeve 10, a pressure reducing valve body 3 arranged between the pressure reducing valve sleeve 10 and the first groove 34, a pilot valve seat 7 connected with the end part of the pressure reducing valve sleeve 10 arranged in the pressure reducing valve body 3, and a spring sleeve arranged on the inner side of the pressure reducing valve body 3, the end of the pressure reducing valve body 3 is connected with a pressure reducing adjusting rod 1 extending into the pressure reducing valve body 3, a pressure regulating spring 5 arranged between a spring sleeve 6 in the pressure reducing valve body 3 and the pressure reducing adjusting rod 1, spring seats 4 respectively arranged at two ends of the pressure regulating spring 5, a valve core reset spring 9 arranged between a pilot valve seat 7 and a pressure reducing valve core 11 in the pressure reducing valve sleeve 10, and a damping gasket 8 arranged between the end of the valve core reset spring 9 and the pilot valve seat 7. A first retainer 22 and a first runner 23 are provided between the pressure reducing valve body 3 and the pressure reducing adjustment rod 1. A second retainer ring 24 and a second retainer ring 25 are provided between the pressure-reducing valve body 3 and the first groove 34. A third stop ring 26 and a third row ring 27 are arranged between the pressure reducing valve body 3 and the pilot valve seat 7. And a fourth retaining ring 28 and a fourth retaining ring 29 are arranged on the other side between the pressure reducing valve body 3 and the pressure reducing adjusting rod 1. A fifth retainer 30 and a fifth coil 31 are arranged between the pilot valve seat 7 and the spring housing 6. A sixth stop ring 32 and a sixth row 33 are arranged between the spring housing 6 and the first recess 34. The thread plug-in electromagnetic switch valve comprises a second groove 37 which is arranged on the other side of the superposed valve body and communicated with an oil path, a reversing valve sleeve 13 which is arranged in the second groove 37, a reversing valve core 15 which is arranged in the reversing valve sleeve 13, a guide valve core 16 which is arranged in the reversing valve core 15, a guide valve core reset spring 14 which is arranged between the reversing valve core 15 and the guide valve core 16, a magnetic conduction sleeve 19 which is arranged on the end part of the second groove 37, an armature 17 which is arranged between the magnetic conduction sleeve and the guide valve core 16, an armature reset spring 18 which is arranged between the armature 17 and the magnetic conduction sleeve, a coil 20 which is wound on the magnetic conduction sleeve, and a locking nut 21 which is arranged on one side end of the coil 20 and is connected with the coil 20 and. A seventh retainer ring and a seventh coil are arranged between the second groove 37 and the reversing valve sleeve 13. The three parts of the threaded cartridge pilot-operated type pressure reducing valve, the threaded cartridge electromagnetic switch valve and the superposition valve block 12 are the main bodies or threaded connections of the threaded cartridge pilot-operated type pressure reducing valve and the threaded cartridge electromagnetic switch valve which are installed by processing specific forming holes on the superposition valve block 12. The pressure reducing adjusting rod 1 is in threaded connection with the pressure reducing valve body 3 and is sealed by a first check ring and a first moving ring, the pressure reducing valve body 3 is connected with a pressure reducing valve sleeve 10 through a snap spring, and other parts are movable. The pressure reducing adjusting rod 1 is provided with a locking nut 2 connected with the pressure reducing valve body 3, and the locking nut 2 is used for fixing the displacement of the adjusting rod. The reversing valve sleeve 13 is in threaded connection with the magnetic sleeve, and the other parts are movable parts.
The normally closed electromagnetic pressure reducing valve is characterized in that when an electromagnet is not electrified, a thread plug-in electromagnetic switch valve is in a normally closed state, a pilot port of the thread plug-in pilot type pressure reducing valve is sealed, no pressure difference is built in a part of the thread plug-in pilot type pressure reducing valve, a main valve core of the thread plug-in pilot type pressure reducing valve is always in a normally open state, system pressure directly enters a working part from an O-shaped ring end to the other end through the opened thread plug-in pilot type pressure reducing valve. After the electromagnet is electrified, the threaded cartridge type electromagnetic switch valve is in an open state, a pilot port of the threaded cartridge type pilot-operated pressure reducing valve is unblocked, a main pressure reducing pilot part of the threaded cartridge type pilot-operated pressure reducing valve establishes a pressure difference, the pressure is balanced by the size of the adjusting combined spring, the system pressure is reduced by the threaded cartridge type pilot-operated pressure reducing valve from the end of the O-shaped ring to the other end, so that the purpose of electromagnetic pressure reduction is realized, and secondary pressure obtained after the system pressure is reduced by the threaded cartridge type pilot-operated pressure reducing valve enters a working part.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (4)
1. A stacked electromagnetic pressure reducing valve is characterized by comprising a stacked valve block, and a threaded plug-in pilot type pressure reducing valve and a threaded plug-in type electromagnetic switch valve which are respectively connected with two ends of the stacked valve block;
the superposition valve block comprises a superposition valve body and an oil way arranged on the superposition valve body;
the thread-inserted pilot-operated type pressure reducing valve comprises a first groove communicated with an oil way, a pressure reducing valve sleeve communicated with the oil way, a pressure reducing valve core arranged in the pressure reducing valve sleeve, a pressure reducing valve body arranged between the pressure reducing valve sleeve and the first groove, a pilot valve seat connected with the end part of the pressure reducing valve sleeve, a spring sleeve arranged at the inner side of the pressure reducing valve body, a pressure reducing adjusting rod extending into the pressure reducing valve body and connected with the end part of the pressure reducing valve body, a pressure adjusting spring arranged between the spring sleeve and the pressure reducing adjusting rod in the pressure reducing valve body, spring seats respectively arranged at two ends of the pressure adjusting spring, a valve core reset spring arranged between a pilot valve seat and the pressure reducing valve core in the pressure reducing valve sleeve, and a damping gasket arranged between the end part of the valve core reset spring and the pilot valve seat;
a first check ring and a first traveling ring are arranged between the pressure reducing valve body and the pressure reducing adjusting rod;
a second check ring and a second row ring are arranged between the pressure reducing valve body and the first groove;
a third check ring and a third coil are arranged between the pressure reducing valve body and the pilot valve seat;
a fourth retaining ring and a fourth coil are arranged on the other side between the pressure reducing valve body and the pressure reducing adjusting rod;
a fifth check ring and a fifth traveling ring are arranged between the pilot valve seat and the spring sleeve;
a sixth check ring and a sixth row of rings are arranged between the spring sleeve and the first groove;
the thread plug-in electromagnetic switch valve comprises a second groove which is arranged on the other side of the superposed valve body and communicated with an oil path, a reversing valve sleeve arranged in the second groove, a reversing valve core arranged in the reversing valve sleeve, a guide valve core arranged in the reversing valve core, a guide valve core reset spring arranged between the reversing valve core and the guide valve core, a magnetic conduction sleeve arranged on the end part of the second groove, an armature arranged between the magnetic conduction sleeve and the guide valve core, an armature reset spring arranged between the armature and the magnetic conduction sleeve, a coil wound on the magnetic conduction sleeve, and a locking nut arranged on one side end of the coil and connected with the coil and the magnetic conduction sleeve;
and a seventh check ring and a seventh coil are arranged between the second groove and the reversing valve sleeve.
2. The stacked electromagnetic pressure reducing valve according to claim 1, wherein the pressure reducing adjusting rod is in threaded connection with the pressure reducing valve body and is sealed by a first retaining ring and a first traveling ring; the pressure reducing valve body is connected with the pressure reducing valve sleeve clamp spring.
3. The stacked electromagnetic pressure reducing valve according to claim 2, wherein the pressure reducing adjusting rod is provided with a lock nut connected with the pressure reducing valve body.
4. The stacked electromagnetic pressure reducing valve according to claim 1, wherein the reversing valve sleeve is in threaded connection with the flux sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020610602.XU CN212455023U (en) | 2020-04-21 | 2020-04-21 | Stacked electromagnetic pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020610602.XU CN212455023U (en) | 2020-04-21 | 2020-04-21 | Stacked electromagnetic pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212455023U true CN212455023U (en) | 2021-02-02 |
Family
ID=74468510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020610602.XU Expired - Fee Related CN212455023U (en) | 2020-04-21 | 2020-04-21 | Stacked electromagnetic pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212455023U (en) |
-
2020
- 2020-04-21 CN CN202020610602.XU patent/CN212455023U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 |