CN102374204B - A kind of magnetorheological pilot-operated overflow valve - Google Patents
A kind of magnetorheological pilot-operated overflow valve Download PDFInfo
- Publication number
- CN102374204B CN102374204B CN201110318062.3A CN201110318062A CN102374204B CN 102374204 B CN102374204 B CN 102374204B CN 201110318062 A CN201110318062 A CN 201110318062A CN 102374204 B CN102374204 B CN 102374204B
- Authority
- CN
- China
- Prior art keywords
- main valve
- valve
- pilot
- main
- core
- 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.)
- Expired - Fee Related
Links
Landscapes
- Magnetically Actuated Valves (AREA)
- Safety Valves (AREA)
- Details Of Valves (AREA)
Abstract
本发明提供一种磁流变先导式溢流阀，属于液压传动技术领域。其包括端盖，端盖密封圈，磁流变阀壳体，线圈，铁芯，阀芯，先导阀体，先导阀密封圈，阻尼块，主阀套密封圈，弹簧，导杆密封圈，导杆，主阀套，主阀芯，主阀座密封圈，主阀座，主阀体，阻尼器。主阀芯采用抛物线球头形状，阀芯半锥角大于阀座半锥角，可以有效减小锥阀进出口的压差，最小负压沿液流的方向向后移动，出现在阀芯的后面，避免阀座处出现最小负压，从而降低气蚀发生的可能性，降低噪音，保护阀芯阀座的关键部分，提高磁流变先导式溢流阀的使用寿命。
The invention provides a magneto-rheological pilot overflow valve, which belongs to the technical field of hydraulic transmission. It includes end cover, end cover sealing ring, magnetorheological valve housing, coil, iron core, valve core, pilot valve body, pilot valve sealing ring, damping block, main valve sleeve sealing ring, spring, guide rod sealing ring, Guide rod, main valve sleeve, main valve core, main valve seat sealing ring, main valve seat, main valve body, damper. The main valve core is in the shape of a parabolic ball head. The half cone angle of the valve core is greater than the half cone angle of the valve seat, which can effectively reduce the pressure difference between the inlet and outlet of the cone valve. The minimum negative pressure moves backward along the direction of the liquid flow and appears at the Later, avoid the minimum negative pressure at the valve seat, thereby reducing the possibility of cavitation, reducing noise, protecting the key parts of the valve core and valve seat, and improving the service life of the magneto-rheological pilot relief valve.
Description
技术领域 technical field
本发明涉及一种磁流变先导式溢流阀，属于液压传动技术领域。 The invention relates to a magneto-rheological pilot overflow valve, which belongs to the technical field of hydraulic transmission.
背景技术 Background technique
磁流变液是一种功能流体，既具有流体的流动性又具有固体的可塑性，可以在极短时间内实现固液两相之间转换。通过调节外加磁场强度的大小使磁流变液的粘度、弹性等流变特性发生迅速的转变，这种转变可逆，而且粘度随磁场强度的变化可以实现无级变化，并可通过调节外加电流的大小改变磁场强度，从而实现对其力学性能的控制。依据磁流变液的流变特性设计的磁流变阀，可以实现对压力和流量的智能控制。目前，现有的磁流变阀都是直动式阀，其产生的阻尼力较小，作为溢流阀只能用于低压小流量的液压系统上。因此，将磁流变阀作为溢流阀的先导控制级，设计一种磁流变先导式溢流阀，满足高压大流量液压系统的需要。 Magnetorheological fluid is a functional fluid, which has both the fluidity of fluid and the plasticity of solid, and can realize the transition between solid and liquid in a very short time. By adjusting the magnitude of the applied magnetic field strength, the rheological properties such as viscosity and elasticity of the magnetorheological fluid can be changed rapidly. This transformation is reversible, and the viscosity can be changed steplessly with the change of the magnetic field strength. The size changes the magnetic field strength, thereby realizing the control of its mechanical properties. The magnetorheological valve designed according to the rheological characteristics of magnetorheological fluid can realize the intelligent control of pressure and flow. At present, the existing magneto-rheological valves are all direct-acting valves, which generate relatively small damping force, and can only be used as relief valves in hydraulic systems with low pressure and small flow. Therefore, the magneto-rheological valve is used as the pilot control stage of the relief valve, and a magneto-rheological pilot relief valve is designed to meet the needs of high-pressure and large-flow hydraulic systems.
发明内容 Contents of the invention
本发明的目的是提供一种磁流变先导式溢流阀，用于高压大流量液压系统中，实现阀压力和流量的连续、无级、智能控制。 The purpose of the present invention is to provide a magneto-rheological pilot overflow valve, which is used in a high-pressure and large-flow hydraulic system to realize continuous, stepless and intelligent control of valve pressure and flow.
本发明的技术方案是：一种磁流变先导式溢流阀，由先导阀体8、阻尼块10、弹簧12、导杆14、主阀套15、主阀芯16、主阀座18、主阀体19、阻尼器20、丝堵21组成主阀。主阀出口处还连接有先导阀。 The technical solution of the present invention is: a magneto-rheological pilot relief valve, which consists of a pilot valve body 8, a damping block 10, a spring 12, a guide rod 14, a main valve sleeve 15, a main valve core 16, a main valve seat 18, The main valve body 19, the damper 20 and the plug 21 form the main valve. A pilot valve is also connected to the outlet of the main valve.
所述先导阀包括端盖1、磁流变阀壳体3、线圈4、铁芯5、阀芯7。铁芯5装于磁流变阀壳体3中，铁芯5轴心为通孔结构、其上绕制有线圈4，阀芯7插入铁芯5的孔中，铁芯5与阀芯7之间形成工作间隙6，工作间隙6的宽度为0.1mm~1.8mm，长度为6mm~40mm，工作间隙7的大小根据磁场强度、磁流变液性质和实际需要，在给定范围内选择确定。阀芯7一端顶在主阀内阻尼块10上，另一端由端盖1固定。 The pilot valve includes an end cover 1 , a magneto-rheological valve casing 3 , a coil 4 , an iron core 5 and a valve core 7 . The iron core 5 is installed in the magneto-rheological valve housing 3. The core 5 has a through-hole structure on which the coil 4 is wound. The valve core 7 is inserted into the hole of the iron core 5. The iron core 5 and the valve core 7 A working gap 6 is formed between them. The width of the working gap 6 is 0.1mm~1.8mm, and the length is 6mm~40mm. The size of the working gap 7 is selected and determined within a given range according to the magnetic field strength, the properties of the magnetorheological fluid and the actual needs. . One end of the spool 7 rests on the damping block 10 in the main valve, and the other end is fixed by the end cover 1 .
所述主阀包括先导阀体8、阻尼块10、弹簧12、导杆14、主阀套15、主阀芯16、主阀座18、主阀体19、阻尼器20、丝堵21。先导阀装入先导阀体8中，端盖1和先导阀体8固定在主阀体19上，阻尼块10装入主阀体19中，主阀套15、主阀座18分别装入主阀体19中，主阀芯16装入主阀套15中，导杆14一端与主阀芯16连接在一起，另一端通过弹簧12使主阀芯16压在主阀座18上，阻尼器20装在主阀体19中。主阀体19上装有丝堵21。 The main valve includes a pilot valve body 8, a damping block 10, a spring 12, a guide rod 14, a main valve sleeve 15, a main valve core 16, a main valve seat 18, a main valve body 19, a damper 20, and a plug 21. The pilot valve is installed in the pilot valve body 8, the end cover 1 and the pilot valve body 8 are fixed on the main valve body 19, the damping block 10 is installed in the main valve body 19, the main valve sleeve 15 and the main valve seat 18 are respectively installed in the main valve body. In the valve body 19, the main valve core 16 is put into the main valve sleeve 15, one end of the guide rod 14 is connected with the main valve core 16, and the other end presses the main valve core 16 on the main valve seat 18 through the spring 12, and the damper 20 is contained in the main valve body 19. A silk plug 21 is housed on the main valve body 19 .
所述磁流变先导式溢流阀的最大工作压力为30MPa，最大流量为500L/min。 The maximum working pressure of the magnetorheological pilot relief valve is 30MPa, and the maximum flow rate is 500L/min.
工作时，当先导阀中的线圈通电后，铁芯和阀芯之间的工作间隙存在磁场。流经工作间隙的磁流变液受到磁场的作用，其粘性增大并产生一定的阻力，磁流变液的流动受到约束，进出磁流变阀的压力差增加。当线圈中的电流增加到一定值时，磁流变液转变为半固体状态，同时先导阀的压力差也达到最大值。当系统压力低于先导阀调定压力时，先导阀中的磁流变液由于阻尼力无法通过工作间隙，先导阀前腔压力、主阀后腔压力和系统工作压力相等，主阀芯关闭。当系统工作压力高于先导阀调定压力时，先导阀中的磁流变液内应力超过半固体剪切应力而使其被破坏，磁流变液又恢复到流动状态通过工作间隙。由于主阀后腔阻尼器的作用使先导阀前腔压力低于主阀后腔压力，主阀后腔的压力流体向先导阀前腔流出，使主阀后腔的压力降低，此时主阀芯受外界压力作用开启溢流。 When working, when the coil in the pilot valve is energized, a magnetic field exists in the working gap between the iron core and the valve core. The magnetorheological fluid flowing through the working gap is affected by the magnetic field, its viscosity increases and a certain resistance is generated, the flow of the magnetorheological fluid is restricted, and the pressure difference between the inlet and outlet of the magnetorheological valve increases. When the current in the coil increases to a certain value, the magneto-rheological fluid turns into a semi-solid state, and the pressure difference of the pilot valve also reaches the maximum value at the same time. When the system pressure is lower than the set pressure of the pilot valve, the magnetorheological fluid in the pilot valve cannot pass through the working gap due to the damping force, the pressure in the front chamber of the pilot valve, the pressure in the back chamber of the main valve and the system working pressure are equal, and the main valve core is closed. When the working pressure of the system is higher than the set pressure of the pilot valve, the internal stress of the magnetorheological fluid in the pilot valve exceeds the semi-solid shear stress and destroys it, and the magnetorheological fluid returns to the flow state and passes through the working gap. Due to the function of the damper in the rear chamber of the main valve, the pressure in the front chamber of the pilot valve is lower than the pressure in the rear chamber of the main valve, and the pressure fluid in the rear chamber of the main valve flows out to the front chamber of the pilot valve, reducing the pressure in the rear chamber of the main valve. The core is subjected to external pressure to open the overflow.
本发明的有益效果是： The beneficial effects of the present invention are:
（1）工作介质为微米级或纳米级的磁流变液； (1) The working medium is micron-scale or nano-scale magnetorheological fluid;
（2）磁流变阀的工作间隙设计在铁芯和阀芯之间，提高工作间隙内磁流变液的磁感应强度，增大磁流变阀的阻尼力，提高磁流变先导阀的工作范围； (2) The working gap of the magnetorheological valve is designed between the iron core and the valve core to increase the magnetic induction intensity of the magnetorheological fluid in the working gap, increase the damping force of the magnetorheological valve, and improve the work of the magnetorheological pilot valve. scope;
（3）磁流变液的磁感应强度是通过电流大小调节，可通过电信号直接实现对磁流变先导式溢流阀压力和流量的控制； (3) The magnetic induction intensity of the magnetorheological fluid is adjusted by the magnitude of the current, and the pressure and flow of the magnetorheological pilot relief valve can be directly controlled by the electrical signal;
（4）主阀芯采用抛物线球头形状，阀芯半锥角大于阀座半锥角，可以有效减小锥阀进出口的压差，最小负压沿液流的方向向后移动，出现在阀芯的后面，避免阀座处出现最小负压，从而降低气蚀发生的可能性，降低噪音，保护阀芯阀座的关键部分，提高磁流变先导式溢流阀的使用寿命； (4) The main valve core adopts the shape of a parabolic ball head. The half cone angle of the valve core is greater than the half cone angle of the valve seat, which can effectively reduce the pressure difference between the inlet and outlet of the cone valve. The minimum negative pressure moves backward along the direction of the liquid flow and appears at Behind the valve core, avoid the minimum negative pressure at the valve seat, thereby reducing the possibility of cavitation, reducing noise, protecting the key parts of the valve core and valve seat, and improving the service life of the magneto-rheological pilot relief valve;
（5）密封圈采用炭石墨材料，使得该阀的密封性能显著提高； (5) The sealing ring is made of carbon graphite material, which significantly improves the sealing performance of the valve;
（6）主阀套采用金属石墨材料加工，具有良好的耐腐蚀性，优异的自润滑性能，减摩、抗震、抗磨性能良好； (6) The main valve sleeve is made of metal graphite material, which has good corrosion resistance, excellent self-lubricating performance, good anti-friction, anti-vibration and anti-wear performance;
（7）阀中采用了三个阻尼器的液阻网络，在实现压力调节的同时，提高了主阀的稳定性。 (7) The hydraulic resistance network of three dampers is used in the valve, which improves the stability of the main valve while realizing pressure regulation.
附图说明 Description of drawings
图1为本发明结构示意图； Fig. 1 is a structural representation of the present invention;
图中各标号为：1：端盖，2：端盖密封圈，3：磁流变阀壳体，4：线圈，5：铁芯，6：工作间隙，7：阀芯，8：先导阀体，9：先导阀密封圈，10：阻尼块，11：主阀套密封圈，12：弹簧，13：导杆密封圈，14：导杆，15：主阀套，16：主阀芯，17：主阀座密封圈，18：主阀座，19：主阀体，20：阻尼器，21：丝堵。 The labels in the figure are: 1: end cover, 2: end cover sealing ring, 3: magnetorheological valve housing, 4: coil, 5: iron core, 6: working gap, 7: valve core, 8: pilot valve Body, 9: pilot valve sealing ring, 10: damping block, 11: main valve sleeve sealing ring, 12: spring, 13: guide rod sealing ring, 14: guide rod, 15: main valve sleeve, 16: main valve core, 17: main valve seat sealing ring, 18: main valve seat, 19: main valve body, 20: damper, 21: plug.
具体实施方式 detailed description
下面结合附图和实施例，对本发明作进一步说明，但本发明的内容并不限于所述范围。 The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the content of the present invention is not limited to the stated scope.
实施列1：如图所示，一种磁流变先导式溢流阀，由先导阀体8、阻尼块10、弹簧12、导杆14、主阀套15、主阀芯16、主阀座18、主阀体19、阻尼器20、丝堵21组成主阀。主阀出口处还连接有先导阀。 Implementation column 1: As shown in the figure, a magneto-rheological pilot relief valve consists of a pilot valve body 8, a damping block 10, a spring 12, a guide rod 14, a main valve sleeve 15, a main valve core 16, and a main valve seat 18, main valve body 19, damper 20, plug 21 form main valve. A pilot valve is also connected to the outlet of the main valve.
所述先导阀包括端盖1、磁流变阀壳体3、线圈4、铁芯5、阀芯7。铁芯5装于磁流变阀壳体3中，铁芯5轴心为通孔结构、其上绕制有线圈4，阀芯7插入铁芯5的孔中，铁芯5与阀芯7之间形成工作间隙6，工作间隙6的宽度为0.1mm，长度为6mm。阀芯7一端顶在主阀内阻尼块10上，另一端由端盖1固定。 The pilot valve includes an end cover 1 , a magneto-rheological valve casing 3 , a coil 4 , an iron core 5 and a valve core 7 . The iron core 5 is installed in the magneto-rheological valve housing 3. The core 5 has a through-hole structure on which the coil 4 is wound. The valve core 7 is inserted into the hole of the iron core 5. The iron core 5 and the valve core 7 A working gap 6 is formed between them, the width of the working gap 6 is 0.1mm, and the length is 6mm. One end of the spool 7 rests on the damping block 10 in the main valve, and the other end is fixed by the end cover 1 .
所述主阀包括先导阀体8、阻尼块10、弹簧12、导杆14、主阀套15、主阀芯16、主阀座18、主阀体19、阻尼器20、丝堵21。先导阀装入先导阀体8中，端盖1和先导阀体8固定在主阀体19上，阻尼块10装入主阀体19中，主阀套15、主阀座18分别装入主阀体19中，主阀芯16装入主阀套15中，导杆14一端与主阀芯16连接在一起，另一端通过弹簧12使主阀芯16压在主阀座18上，阻尼器20装在主阀体19中。主阀体19上装有丝堵21。 The main valve includes a pilot valve body 8, a damping block 10, a spring 12, a guide rod 14, a main valve sleeve 15, a main valve core 16, a main valve seat 18, a main valve body 19, a damper 20, and a plug 21. The pilot valve is installed in the pilot valve body 8, the end cover 1 and the pilot valve body 8 are fixed on the main valve body 19, the damping block 10 is installed in the main valve body 19, the main valve sleeve 15 and the main valve seat 18 are respectively installed in the main valve body. In the valve body 19, the main valve core 16 is put into the main valve sleeve 15, one end of the guide rod 14 is connected with the main valve core 16, and the other end presses the main valve core 16 on the main valve seat 18 through the spring 12, and the damper 20 is contained in the main valve body 19. A silk plug 21 is housed on the main valve body 19 .
所述磁流变先导式溢流阀的最大工作压力为30MPa，最大流量为500L/min。 The maximum working pressure of the magnetorheological pilot relief valve is 30MPa, and the maximum flow rate is 500L/min.
实施列2：如图所示，一种磁流变先导式溢流阀，由先导阀体8、阻尼块10、弹簧12、导杆14、主阀套15、主阀芯16、主阀座18、主阀体19、阻尼器20、丝堵21组成主阀。主阀出口处还连接有先导阀。 Embodiment 2: As shown in the figure, a magneto-rheological pilot relief valve consists of a pilot valve body 8, a damping block 10, a spring 12, a guide rod 14, a main valve sleeve 15, a main valve core 16, and a main valve seat 18, main valve body 19, damper 20, plug 21 form main valve. A pilot valve is also connected to the outlet of the main valve.
所述先导阀包括端盖1、磁流变阀壳体3、线圈4、铁芯5、阀芯7。铁芯5装于磁流变阀壳体3中，铁芯5轴心为通孔结构、其上绕制有线圈4，阀芯7插入铁芯5的孔中，铁芯5与阀芯7之间形成工作间隙6，工作间隙6的宽度为1.8mm，长度为40mm。阀芯7一端顶在主阀内阻尼块10上，另一端由端盖1固定。 The pilot valve includes an end cover 1 , a magneto-rheological valve casing 3 , a coil 4 , an iron core 5 and a valve core 7 . The iron core 5 is installed in the magneto-rheological valve housing 3. The core 5 has a through-hole structure on which the coil 4 is wound. The valve core 7 is inserted into the hole of the iron core 5. The iron core 5 and the valve core 7 A working gap 6 is formed between them, the width of the working gap 6 is 1.8mm, and the length is 40mm. One end of the spool 7 rests on the damping block 10 in the main valve, and the other end is fixed by the end cover 1 .
所述主阀包括先导阀体8、阻尼块10、弹簧12、导杆14、主阀套15、主阀芯16、主阀座18、主阀体19、阻尼器20、丝堵21。先导阀装入先导阀体8中，端盖1和先导阀体8固定在主阀体19上，阻尼块10装入主阀体19中，主阀套15、主阀座18分别装入主阀体19中，主阀芯16装入主阀套15中，导杆14一端与主阀芯16连接在一起，另一端通过弹簧12使主阀芯16压在主阀座18上，阻尼器20装在主阀体19中。主阀体19上装有丝堵21。 The main valve includes a pilot valve body 8, a damping block 10, a spring 12, a guide rod 14, a main valve sleeve 15, a main valve core 16, a main valve seat 18, a main valve body 19, a damper 20, and a plug 21. The pilot valve is installed in the pilot valve body 8, the end cover 1 and the pilot valve body 8 are fixed on the main valve body 19, the damping block 10 is installed in the main valve body 19, the main valve sleeve 15 and the main valve seat 18 are respectively installed in the main valve body. In the valve body 19, the main valve core 16 is put into the main valve sleeve 15, one end of the guide rod 14 is connected with the main valve core 16, and the other end presses the main valve core 16 on the main valve seat 18 through the spring 12, and the damper 20 is contained in the main valve body 19. A silk plug 21 is housed on the main valve body 19 .
所述磁流变先导式溢流阀的最大工作压力为30MPa，最大流量为500L/min。 The maximum working pressure of the magnetorheological pilot relief valve is 30MPa, and the maximum flow rate is 500L/min.
实施列3：如图所示，一种磁流变先导式溢流阀，由先导阀体8、阻尼块10、弹簧12、导杆14、主阀套15、主阀芯16、主阀座18、主阀体19、阻尼器20、丝堵21组成主阀。主阀出口处还连接有先导阀。 Implementation column 3: As shown in the figure, a magneto-rheological pilot relief valve consists of a pilot valve body 8, a damping block 10, a spring 12, a guide rod 14, a main valve sleeve 15, a main valve core 16, and a main valve seat 18, main valve body 19, damper 20, plug 21 form main valve. A pilot valve is also connected to the outlet of the main valve.
所述先导阀包括端盖1、磁流变阀壳体3、线圈4、铁芯5、阀芯7。铁芯5装于磁流变阀壳体3中，铁芯5轴心为通孔结构、其上绕制有线圈4，阀芯7插入铁芯5的孔中，铁芯5与阀芯7之间形成工作间隙6，工作间隙6的宽度为0.9mm，长度为17mm。阀芯7一端顶在主阀内阻尼块10上，另一端由端盖1固定。 The pilot valve includes an end cover 1 , a magneto-rheological valve casing 3 , a coil 4 , an iron core 5 and a valve core 7 . The iron core 5 is installed in the magneto-rheological valve housing 3. The core 5 has a through-hole structure on which the coil 4 is wound. The valve core 7 is inserted into the hole of the iron core 5. The iron core 5 and the valve core 7 A working gap 6 is formed between them, the width of the working gap 6 is 0.9mm, and the length is 17mm. One end of the spool 7 rests on the damping block 10 in the main valve, and the other end is fixed by the end cover 1 .
所述主阀包括先导阀体8、阻尼块10、弹簧12、导杆14、主阀套15、主阀芯16、主阀座18、主阀体19、阻尼器20、丝堵21。先导阀装入先导阀体8中，端盖1和先导阀体8固定在主阀体19上，阻尼块10装入主阀体19中，主阀套15、主阀座18分别装入主阀体19中，主阀芯16装入主阀套15中，导杆14一端与主阀芯16连接在一起，另一端通过弹簧12使主阀芯16压在主阀座18上，阻尼器20装在主阀体19中。主阀体19上装有丝堵21。 The main valve includes a pilot valve body 8, a damping block 10, a spring 12, a guide rod 14, a main valve sleeve 15, a main valve core 16, a main valve seat 18, a main valve body 19, a damper 20, and a plug 21. The pilot valve is installed in the pilot valve body 8, the end cover 1 and the pilot valve body 8 are fixed on the main valve body 19, the damping block 10 is installed in the main valve body 19, the main valve sleeve 15 and the main valve seat 18 are respectively installed in the main valve body. In the valve body 19, the main valve core 16 is put into the main valve sleeve 15, one end of the guide rod 14 is connected with the main valve core 16, and the other end presses the main valve core 16 on the main valve seat 18 through the spring 12, and the damper 20 is contained in the main valve body 19. A silk plug 21 is housed on the main valve body 19 .
所述磁流变先导式溢流阀的最大工作压力为30MPa，最大流量为500L/min。 The maximum working pressure of the magnetorheological pilot relief valve is 30MPa, and the maximum flow rate is 500L/min.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110318062.3A CN102374204B (en) | 2011-10-19 | 2011-10-19 | A kind of magnetorheological pilot-operated overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110318062.3A CN102374204B (en) | 2011-10-19 | 2011-10-19 | A kind of magnetorheological pilot-operated overflow valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102374204A CN102374204A (en) | 2012-03-14 |
| CN102374204B true CN102374204B (en) | 2016-05-25 |
Family
ID=45793268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110318062.3A Expired - Fee Related CN102374204B (en) | 2011-10-19 | 2011-10-19 | A kind of magnetorheological pilot-operated overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102374204B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062145A (en) * | 2013-01-14 | 2013-04-24 | 昆明理工大学 | Magnetorheological plug-in high-speed switching valve |
| CN103185043B (en) * | 2013-03-12 | 2015-11-04 | 合肥工业大学 | Smart Liquid Flow Control Valve |
| CN104632745B (en) * | 2015-02-11 | 2017-10-20 | 华侨大学 | A kind of sequence valve using magnetorheological pilot valve |
| CN104632744B (en) * | 2015-02-11 | 2017-10-20 | 华侨大学 | A kind of magnetorheological pilot valve |
| CN105003478A (en) * | 2015-06-30 | 2015-10-28 | 河南平高电气股份有限公司 | Control valve and circuit breaker hydraulic operating mechanism using control valve |
| CN105221634B (en) * | 2015-11-05 | 2017-07-07 | 重庆材料研究院有限公司 | Damper piston structure based on adaptive damping choke valve |
| CN106151144A (en) * | 2016-08-11 | 2016-11-23 | 张广 | A kind of check valve based on magnetic rheology effect |
| CN111306126B (en) * | 2020-03-20 | 2021-04-16 | 中国矿业大学 | Magnetorheological fluid pilot type pressure reducing valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5353839A (en) * | 1992-11-06 | 1994-10-11 | Byelocorp Scientific, Inc. | Magnetorheological valve and devices incorporating magnetorheological elements |
| CN2697420Y (en) * | 2004-04-21 | 2005-05-04 | 华中科技大学 | Pre-guiding type water pressure overflow valve |
| KR20050115212A (en) * | 2005-11-21 | 2005-12-07 | 윤영원 | A proportional controlling solenoid valve and its controlling method |
| CN201461578U (en) * | 2009-07-02 | 2010-05-12 | 昆明理工大学 | A digital pure water overflow valve |
| CN201531476U (en) * | 2009-10-15 | 2010-07-21 | 昆明理工大学 | Magneto-rheological fluid pilot relief valve |
| CN202280680U (en) * | 2011-10-19 | 2012-06-20 | 昆明理工大学 | Magnetorheological pilot overflow valve |
-
2011
- 2011-10-19 CN CN201110318062.3A patent/CN102374204B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5353839A (en) * | 1992-11-06 | 1994-10-11 | Byelocorp Scientific, Inc. | Magnetorheological valve and devices incorporating magnetorheological elements |
| CN2697420Y (en) * | 2004-04-21 | 2005-05-04 | 华中科技大学 | Pre-guiding type water pressure overflow valve |
| KR20050115212A (en) * | 2005-11-21 | 2005-12-07 | 윤영원 | A proportional controlling solenoid valve and its controlling method |
| CN201461578U (en) * | 2009-07-02 | 2010-05-12 | 昆明理工大学 | A digital pure water overflow valve |
| CN201531476U (en) * | 2009-10-15 | 2010-07-21 | 昆明理工大学 | Magneto-rheological fluid pilot relief valve |
| CN202280680U (en) * | 2011-10-19 | 2012-06-20 | 昆明理工大学 | Magnetorheological pilot overflow valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102374204A (en) | 2012-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102374204B (en) | A kind of magnetorheological pilot-operated overflow valve | |
| CN103352956B (en) | The MR damper of asymmetric controllable damping characteristic | |
| CN205859036U (en) | A kind of MR damper using external spring automatically to protect | |
| CN104633233B (en) | A kind of overflow valve using magnetorheological pilot valve | |
| CN207437914U (en) | Pilot-operated type static-difference-free water pressure overflow valve | |
| CN101319698A (en) | Magnetorheological Damper with Adjustable Damping | |
| CN204003728U (en) | A kind of unicoil damping clearance adjustable type magnetic rheology valve | |
| CN107091293A (en) | A kind of electromagnetic type damps continuously adjustabe shock absorber | |
| JP2014142064A (en) | Electromagnetic fluid valve | |
| CN206496071U (en) | A magneto-rheological pilot relief valve | |
| CN102374330A (en) | Magnetorheological valve | |
| CN104315159A (en) | Hydraulic high-flow high-speed digital valve with solenoid valve arranged in middle | |
| CN202280914U (en) | Magnetorheological valve | |
| CN202280680U (en) | Magnetorheological pilot overflow valve | |
| CN104763825A (en) | Magneto-rheological valve adopting permanent magnet and double coils for composite control | |
| CN104632745A (en) | Sequence valve with magneto-rheological pilot valve | |
| CN202612237U (en) | Horizontal leading magneto-rheological inserting type high-speed switching valve | |
| CN109630493A (en) | A kind of hydraulic pressure combination valve based on micro forming spool and special-shaped valve chamber | |
| CN201531476U (en) | Magneto-rheological fluid pilot relief valve | |
| CN104632744B (en) | A kind of magnetorheological pilot valve | |
| CN103062278B (en) | Permanent magnet stay cable magneto-rheological fluid damper with adjustable damping coefficient | |
| CN104948647A (en) | Piston structure of magnetorheological damper | |
| CN204628745U (en) | A kind of magnetorheological pilot-operated overflow valve | |
| CN204226702U (en) | A kind of guiding valve pair effectively reducing hydraulic power | |
| CN111306333B (en) | Safety valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20201019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |