An actuator of a fast response and high-precision telescopic positioning system

Abstract

The application relates to an actuator of a quick-response and high-precision telescopic positioning system, the electromagnetic valve comprises a valve body, a valve core and a spring, and the electromagnetic valve comprises a base platform, a hydraulic cylinder and an electromagnetic valve, and further comprises a control system and a protection system; the control system judges and levels the inclination of the base platform through a horizontal judging mechanism and a power-on control module; the protection system provides multiple protections for the lifting of the base platform through an induction module, a backup control module and a backup locking valve. Due to the adoption of the above technical scheme, the inclination of the offshore base during the construction process is reduced to a certain extent, so that the safety of offshore construction is ensured to a certain extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic transmission, in particular to an actuator of a fast response and high-precision telescopic positioning system. BACKGROUND

[0002] With the acceleration of urban construction and economic development, the demand for electricity gradually increases, and the reconstruction and construction of offshore super-high power towers also increase. The establishment of offshore base is an important foundation for the construction of super-large and super-high spanning tower disassembly and assembly. The offshore base is scattered on the sea level, and the stress and deformation state changes rapidly, so it is impossible to realize artificial monitoring from the theoretical and technical conditions. In addition, there is a strong nonlinear influence between each stress point of the offshore base, and the adjustment of a single stress point will affect the distribution of the overall force, so a single feedback control cannot meet the use requirements. In addition, the monitoring feedback signal of the state parameters of each stress point has a certain hysteresis, and the traditional communication method will produce a certain deviation to the final control effect.

[0003] The support base monitoring system of the holding pole adjusts the deformation and pose of the support base of the holding pole in real time by monitoring a plurality of stress points to ensure that the stress of the support base of the holding pole is in a normal state. The load sensor, PCL, electromagnetic valve and displacement sensor carried by the hydraulic cylinder are used to adjust the height of each stress point of the support base of the holding pole. The PCL compares the load data generated by the load sensors on the plurality of hydraulic cylinders to control the on-off of the electromagnetic valve, thereby adjusting and positioning the extension and retraction of the hydraulic cylinder.

[0004] In the use of the system, the base is supported by a single hydraulic rod. Due to the influence of various factors on the offshore site, the installation of a single hydraulic rod is not easy to maintain vertical, which makes it difficult to install the base horizontally, and thus the holding pole installed on the base is prone to overall tilting due to platform tilting, which is very troublesome to level. The overall tilting is prone to cause unstable stress, which in turn affects the safety of construction. SUMMARY

[0005] Therefore, the purpose of the present application is to provide an actuator of a fast response and high-precision telescopic positioning system to solve the problem that the existing technology uses a single hydraulic rod to support the base. Due to the influence of various factors on the offshore site, the installation of a single hydraulic rod is not easy to maintain vertical, which makes it difficult to install the base horizontally, and thus the holding pole installed on the base is prone to overall tilting due to platform tilting, which is very troublesome to level. The overall tilting is prone to cause unstable stress, which in turn affects the safety of construction.

[0006] The present application is achieved by the following technical solutions:

[0007] The utility model provides an executive mechanism of fast response and high precision telescopic positioning system, including base platform, hydraulic cylinder and solenoid valve, the base platform is arranged horizontally, the hydraulic cylinder is a plurality of, a plurality of hydraulic cylinders are arranged at intervals in the four around of base platform and are connected the lower end surface of base platform, the solenoid valve is a plurality of, a plurality of solenoid valve and a plurality of hydraulic cylinder one to one corresponding connection and are used for controlling the flow direction and on-off of a plurality of hydraulic cylinder oil circuit, including control system, including horizontal judging mechanism and power-on control module, horizontal judging mechanism connects the base platform and is used for judging whether the base platform is inclined, the horizontal judging mechanism and solenoid valve are all with power-on control module electricity is connected, and power-on control module is used for controlling the on-off of solenoid valve when horizontal judging mechanism judges that the base platform is inclined,

[0008] The utility model provides a protection system, including inductive module, spare control module and spare lock valve, the spare lock valve is connected with the hydraulic cylinder and is used for controlling the flow direction and on-off of hydraulic cylinder oil circuit, the inductive module is electrically connected with horizontal judging mechanism, and the inductive module is used for inductive whether the output end of hydraulic cylinder is correct when the base platform is inclined, the inductive module and spare lock valve are all electrically connected with spare control module, and the spare control module is used for the inductive module controls spare lock valve to control oil circuit when inductive the output end of hydraulic cylinder is not correct.

[0009] Further, the horizontal judging mechanism includes a control box and a plurality of sensors, the control box is connected to the middle part of the base platform, the control box is hollow inside to form a closed internal cavity in the shape of a ring tube, the closed internal cavity is parallel to the base platform and is horizontally arranged with the same center line as the base platform, the closed internal cavity contains mercury, the plurality of sensors correspond one-to-one to the plurality of hydraulic cylinders and are electrically connected to the power-on control module, the sensors are provided with positive and negative plates, the positive and negative plates of the plurality of sensors are connected to the inner wall of the closed internal cavity, and a plurality of groups of the positive and negative plates are arranged in a ring array around the plurality of hydraulic cylinders with respect to the center line of the closed internal cavity, the plurality of groups of the positive and negative plates are located on the same horizontal plane, and the plurality of groups of the positive and negative plates are located above the mercury level, the power-on control module is used to adjust the height of the output end of the hydraulic cylinder when the sensor senses that the mercury connects the positive and negative plates.

[0010] Further, the power-on control module includes an identification module, a data conversion module, and an execution module, the execution module is used to control the on-off of the solenoid valve when the sensor is powered on, the identification module is used to identify the current value of the powered-on sensor, and the data conversion module is used to convert the current value of the powered-on sensor into the lifting value of the output end of the hydraulic cylinder; the inductive module includes a displacement sensor, a threshold comparison module, a state maintenance module, and a dynamic adjustment module, the displacement sensor is connected one-to-one to the output end of the hydraulic cylinder, and the displacement sensor is electrically connected to the threshold comparison module.

[0011] Threshold comparison module: provided with a switching standby valve threshold, the threshold comparison module is used for receiving and comparing the difference between the value obtained by the data conversion module and the displacement sensor transmission data and comparing the difference with the switching standby valve threshold;

[0012] State maintenance module: when the difference between the value obtained by the data conversion module and the displacement sensor transmission data is within the switching standby valve threshold range, the state maintenance module maintains the adjustment state of the energized control module;

[0013] Dynamic adjustment module: when the difference between the value obtained by the data conversion module and the displacement sensor transmission data exceeds the switching standby valve threshold range, the dynamic adjustment module sends an electrical signal to the standby control module to enable the standby locking valve to control the oil circuit.

[0014] Further, the protection system further comprises a flexible moving oil cylinder and a moving module, a sliding rail is arranged between the plurality of hydraulic cylinders, and the flexible moving oil cylinder is arranged on the sliding rail;

[0015] Moving module: the moving module is electrically connected with the standby locking valve, and the moving module is used to control the flexible moving hydraulic cylinder to move to the position of the hydraulic cylinder corresponding to the standby locking valve for auxiliary support when the standby locking valve operates.

[0016] Further, the hydraulic cylinder is connected with horizontal sliding rails on both sides; the sliding rail is a telescopic electromagnetic sliding rail, the telescopic electromagnetic sliding rail is arranged between any two adjacent hydraulic cylinders, the two ends of the telescopic electromagnetic sliding rail are hinged to the horizontal sliding rails between the two adjacent hydraulic cylinders, the lower end of the flexible moving oil cylinder is connected with an electromagnetic sliding block, the electromagnetic sliding block is slidably connected with the telescopic electromagnetic sliding rail, and the electromagnetic sliding block is electrically connected with the moving module.

[0017] Further, the electromagnetic valve comprises a valve body, a valve core and springs, the valve body is provided with a closed chamber and four oil ports for oil flow, the valve core is slidably matched in the closed chamber, the valve core is used to block the oil ports, and the springs are provided with two, two springs are respectively arranged at two ends of the closed chamber, and two ends of the two springs are respectively connected with an inner side wall of one end of the closed chamber on the corresponding side and one end of the valve core. The two ends of the valve body are provided with coils, the two coils are electrically connected with the controller, and the valve core is made of magnetic material.

[0018] The valve core is connected with a bearing rod at both ends, the valve body is provided with a sliding cavity at both ends, the two sliding cavities are symmetrically arranged with the valve body as the symmetric axis, the first sliding block is slidably arranged in the two sliding cavities, the first sliding block is square in cross section, the two bearing rods penetrate through the airtight chamber and the sliding cavity and are slidably connected with the valve body at the ends away from the valve core, the first sliding block bears against the bearing rod, the first sliding block is recessed at the end away from the valve core, the first sliding block is provided with an internal thread groove, the threaded rod is screwed with the internal thread groove, the threaded rod penetrates through the sliding slot and the outer side wall of the valve body at the end away from the valve core, and the motor is connected with the threaded rod at the end away from the valve core.

[0019] Further, the electromagnetic valve further comprises a sliding rod, a second sliding block and a cleaning brush, the cleaning brush is connected with the surface of the valve core, the end of the cleaning brush away from the surface of the valve core bears against the inner side wall of the airtight space, the through hole is formed in the valve core, the sliding rod is slidably arranged in the through hole, the surface of the sliding rod is provided with a spiral groove and both ends of the sliding rod are fixedly connected with the valve body, the second sliding block is fixedly connected with the inner wall of the through hole, and the second sliding block is slidably connected with the spiral groove.

[0020] The beneficial effects of the present application are:

[0021] 1. The actuator of the quick-response and high-precision telescopic positioning system is provided with multiple hydraulic rods and cooperates with the horizontal judgment mechanism box power control module to quickly judge and quickly respond to the inclination angle of the base platform, so that the base platform remains horizontal, the possibility of inclination of the offshore base during construction is reduced to a certain extent, and the safety of offshore construction is ensured to a certain extent.

[0022] 2. The actuator of the quick-response and high-precision telescopic positioning system is provided with multiple protection systems to prevent the failure of the electromagnetic valve and the failure of the hydraulic cylinder caused by other conditions, so that the platform cannot be quickly leveled, the normal use of the mechanism is ensured to a certain extent, and the safety of offshore construction is ensured to a certain extent.

[0023] 3. The actuator of the quick-response and high-precision telescopic positioning system is improved by improving the electromagnetic valve, which reduces the possibility of starting the protection system due to the blockage of the electromagnetic valve itself, prolongs the maintenance frequency of the mechanism to a certain extent, and reduces the workload of the staff.

[0024] Other advantages, objects, and features of the present application will be apparent from the following specification, and in some aspects, will be apparent to those skilled in the art from a consideration of the foregoing description, or from the practice of the present application. The objects and other advantages of the present application will be realized and attained by the apparatus particularly pointed out in the written description and claims hereof. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of the structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the control box structure of the present invention;

[0027] Figure 3 This is a cross-sectional view of the solenoid valve of the present invention;

[0028] Figure 4 This is a schematic diagram of the valve core structure of the present invention.

[0029] In the diagram: 1. Solenoid valve; 11. Sealed chamber; 12. Oil port; 13. Sliding chamber; 14. First slider; 141. Threaded rod; 142. Motor; 15. Valve body; 2. Valve core; 21. Support rod; 3. Spring; 4. Cleaning brush; 5. Coil; 61. Slide rod; 611. Helical groove; 62. Second slider; 7. Base platform; 71. Control box; 72. Enclosed inner cavity; 73. Mercury; 8. Hydraulic cylinder; 81. Horizontal slide rail; 9. Flexible moving cylinder; 91. Telescopic electromagnetic slide rail; 92. Electromagnetic slider; Detailed Implementation

[0030] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0031] Please see Figures 1-4 This invention provides a technical solution for the actuator of a fast-response and high-precision telescopic positioning system: An actuator for a fast-response and high-precision telescopic positioning system includes a base platform 7, hydraulic cylinders 8, and solenoid valves 1. The base platform 7 is horizontally arranged. Multiple hydraulic cylinders 8 are spaced apart around the base platform 7 and connected to its lower end face. Multiple solenoid valves 1 are connected one-to-one with each of the hydraulic cylinders 8 and are used to control the flow direction and on / off state of the oil circuits in the hydraulic cylinders 8.

[0032] The control system includes a horizontal judgment mechanism and an energized control module. The horizontal judgment mechanism is connected to the base platform 7 and is used to judge whether the base platform 7 is tilted. The horizontal judgment mechanism and the solenoid valve 1 are both electrically connected to the energized control module. The energized control module is used to control the opening and closing of the solenoid valve 1 when the horizontal judgment mechanism judges that the base platform 7 is tilted.

[0033] The protection system comprises a sensing module, a backup control module and a backup locking valve, the backup locking valve is connected with the hydraulic cylinder 8 and is used for controlling the flow direction and on-off of the hydraulic cylinder 8 oil circuit, the sensing module is electrically connected with the horizontal judging mechanism, the sensing module is used for sensing whether the output end of the hydraulic cylinder 8 is correctly lifted when the base platform 7 is inclined, the sensing module and the backup locking valve are electrically connected with the backup control module, and the backup control module is used for controlling the backup locking valve to control the oil circuit when the sensing module senses that the output end of the hydraulic cylinder 8 is not correctly lifted.

[0034] The actuator of the quick-response and high-precision telescopic positioning system of the application supports the base platform 7 through a plurality of hydraulic cylinders 8 connected to the lower end surface of the base platform 7, controls the flow direction and on-off of the hydraulic cylinder 8 oil circuit through the electromagnetic valve 1, so that the hydraulic cylinder 8 is lifted, and the plurality of hydraulic cylinders 8 are arranged at intervals around the base platform 7, so that the inclination of the base platform 7 plane can be changed by changing the lifting height of the plurality of hydraulic cylinders 8.

[0035] The horizontal judging mechanism is connected with the base platform 7, and is used for judging whether the base platform 7 is inclined, when the horizontal judging mechanism judges that the base platform 7 is inclined, the horizontal judging mechanism sends an electric signal to the power-on control module, and the power-on control module controls the on-off of the electromagnetic valve 1 after receiving the electric signal, so as to adjust the lifting of the output end of the hydraulic cylinder 8 corresponding to the inclined position, and the base platform 7 plane is lifted to a certain horizontal plane through the lifting of the output end of the hydraulic cylinder 8, in this way, the actuator of the quick-response and high-precision telescopic positioning system of the application can keep the base platform 7 horizontal to a certain extent by adjusting the height of the output end of the hydraulic cylinder 8.

[0036] When the horizontal judging mechanism judges that the base platform 7 is inclined and needs to make the output end of the hydraulic cylinder 8 move up and down, the horizontal judging mechanism sends an electric signal to the sensing module to make the sensing module work, so that the sensing module senses the lifting of the output end of the hydraulic cylinder 8; when the electromagnetic valve 1 fails, the electromagnetic valve 1 cannot adjust the lifting of the output end of the hydraulic cylinder 8, so that the power-on control module cannot control the lifting of the output end of the hydraulic cylinder 8, at this time, the backup control module receives the electric signal of the sensing module and judges that the output end of the hydraulic cylinder 8 does not lift, and then controls the backup locking valve to adjust the lifting of the output end of the hydraulic cylinder 8.

[0037] In this way, in the process of monitoring and adjusting the base platform 7 by the actuator of the fast response and high precision telescopic positioning system, the situation that the base platform 7 cannot be leveled due to the failure of the electromagnetic valve 1 and the output end of the hydraulic cylinder 8 cannot respond in time is reduced, and the safety of the base platform 7 construction is ensured to a certain extent through the double protection of the electromagnetic valve 1 and the standby locking valve.

[0038] In the embodiment, the level determination mechanism includes a control box 71 and a plurality of inductors, the control box 71 is connected to the middle part of the base platform 7, the control box 71 is hollow inside to form a closed inner cavity 72 in the shape of a ring tube, the closed inner cavity 72 is parallel to the base platform 7 and is horizontally arranged with the center line of the base platform 7, the closed inner cavity 72 is provided with mercury 73, a plurality of inductors are one-to-one corresponding to a plurality of hydraulic cylinders 8 and are electrically connected with a power-on control module, the inductor is provided with a positive plate and a negative plate, the positive plate and the negative plate of the plurality of inductors are connected to the inner wall of the closed inner cavity 72, a plurality of groups of the positive plate and the negative plate are one-to-one corresponding to the azimuth annular array of the plurality of hydraulic cylinders 8 with the central axis of the closed inner cavity 72 as the center line, a plurality of groups of the positive plate and the negative plate are located on the same horizontal plane and a plurality of groups of the positive plate and the negative plate are located above the horizontal plane of the mercury 73, and the power-on control module is used to adjust the height of the output end of the hydraulic cylinder 8 when the inductor senses that the mercury 73 connects the positive plate and the negative plate.

[0039] When the base platform 7 is in a horizontal position, the closed cavity is in a horizontal position, and the horizontal plane of the mercury 73 is parallel to the plane of the base platform 7. Since a plurality of groups of the positive plate and the negative plate are one-to-one corresponding to the azimuth annular array of the plurality of hydraulic cylinders 8 with the central axis of the closed inner cavity 72 as the center line, at this time, a plurality of groups of the positive plate and the negative plate are also in a horizontal position. Since a plurality of groups of the positive plate and the negative plate are located above the horizontal plane of the mercury 73, at this time, the mercury 73 does not connect the positive plate and the negative plate, so that the inductor cannot connect the circuit, and the power-on control module will not adjust the height of the output end of the hydraulic cylinder 8.

[0040] When the base platform 7 is tilted, the closed inner cavity 72 is tilted with the base platform 7, the mercury 73 in the closed inner cavity 72 flows along the tilting direction of the closed inner cavity 72 due to its own gravity, and the positive and negative plates are tilted with the tilting of the closed inner cavity 72 because the positive and negative plates are connected to the side wall of the closed inner cavity 72 and are located at the same horizontal plane, so that the mercury 73 flows in the tilting direction of the closed inner cavity 72 and is connected to the positive and negative plates of the corresponding inductor, thereby enabling the corresponding inductor, and because the plurality of inductors one-to-one correspond to the plurality of hydraulic cylinders 8 and are electrically connected to the energization control module, the inductor is energized to send an electrical signal to the energization control module, the energization control module adjusts the corresponding electromagnetic valve 1 to adjust the corresponding hydraulic cylinder 8, so that the output end of the hydraulic cylinder 8 moves upward until the mercury 73 is completely separated from the plurality of positive and negative plates, at which time the base platform 7 returns to the horizontal state, the circuit of the inductor is disconnected, and the output end of the hydraulic cylinder 8 also stops lifting.

[0041] With this structure, the horizontal determination mechanism can be used to determine whether the base platform 7 is tilted and to adjust the energization control module to the tilt of the base platform 7, to some extent, to realize the automatic dynamic adjustment of the base platform 7, and the mercury 73 immediately sends an electrical signal to the energization control module for adjustment when it is connected to the positive and negative plates, to some extent, to ensure the fast response function of the execution mechanism.

[0042] In this embodiment: the energization control module includes an identification module, a data conversion module and an execution module, the execution module is used to control the on-off of the electromagnetic valve 1 when the inductor is energized, the identification module is used to identify the inductor current value, and the data conversion module is used to convert the inductor current value into the lifting value of the output end of the hydraulic cylinder 8; the sensing module includes a displacement sensor, a threshold comparison module, a state maintenance module and a dynamic adjustment module, the displacement sensor is connected to the output end of the hydraulic cylinder 8 one-to-one, and the displacement sensor is electrically connected to the threshold comparison module;

[0043] The threshold comparison module is provided with a switching standby valve threshold, and the threshold comparison module is used to receive and compare the difference between the value obtained by the data conversion module and the data transmitted by the displacement sensor and compare the difference with the switching standby valve threshold;

[0044] The state maintenance module: when the difference between the value obtained by the data conversion module and the data transmitted by the displacement sensor is within the switching standby valve threshold range, the state maintenance module maintains the adjustment state of the energization control module;

[0045] The dynamic adjustment module: when the difference between the value obtained by the data conversion module and the data transmitted by the displacement sensor exceeds the switching standby valve threshold range, the dynamic adjustment module sends an electrical signal to the standby control module to enable the standby locking valve to control the oil circuit.

[0046] When the base platform 7 is tilted, the inductor communication circuit sends an electrical signal to the power-on control module and the threshold comparison module, the threshold comparison module receives and compares the value obtained by the data conversion module and the displacement sensor transmission data and converts it into a difference value and compares it with the switching standby valve threshold; if the difference is within the switching standby threshold range, the state maintenance module still maintains the use of the power-on control module to adjust the hydraulic cylinder 8; if the corresponding hydraulic cylinder 8 fails to output due to failure, the difference between the power-on control module and the displacement sensor transmission data exceeds the switching standby valve threshold range, then the dynamic adjustment module sends an electrical signal to the controller to enable the standby locking valve to control the oil circuit. With this structure, the standby control module can be used to control the standby locking valve to control the oil circuit when the inductive module senses that the output end of the hydraulic cylinder 8 does not lift correctly.

[0047] Specifically, the dynamic adjustment module further comprises a safety warning module, when the difference between the power-on control module and the displacement sensor transmission data exceeds the switching standby valve threshold range, the safety warning module issues a safety warning to remind the staff to check the corresponding hydraulic cylinder 8 and solenoid valve 1.

[0048] In this embodiment: the protection system further comprises a flexible moving oil cylinder 9 and a moving module, a plurality of hydraulic cylinders 8 are arranged with sliding rails, the sliding rails are provided with flexible moving oil cylinders 9,

[0049] Moving module: the moving module is electrically connected with the standby locking valve, and the moving module is used to control the flexible moving hydraulic cylinder 8 to move to the position of the corresponding hydraulic cylinder 8 to assist in supporting when the standby locking valve is running.

[0050] When the dynamic adjustment module sends an electrical signal to the standby control module, the standby control module controls the standby locking valve to run, the moving module receives the standby locking valve running signal and controls the flexible moving hydraulic cylinder 8 to move to the position of the corresponding hydraulic cylinder 8 to assist in supporting, to a certain extent, to reduce the possibility of the base platform 7 continuing to tilt as a whole due to the failure of the hydraulic cylinder 8, and to protect the base platform 7 multiple times to ensure the safety of construction.

[0051] In this embodiment: the hydraulic cylinder 8 is connected with horizontal sliding rails 81 on both sides; the sliding rail is a telescopic electromagnetic sliding rail 91, the telescopic electromagnetic sliding rail 91 is arranged between any two adjacent hydraulic cylinders 8, the two ends of the telescopic electromagnetic sliding rail 91 are hinged to the horizontal sliding rails 81 between the two adjacent hydraulic cylinders 8, the lower end of the flexible moving oil cylinder 9 is connected with an electromagnetic sliding block 92, the electromagnetic sliding block 92 is slidably connected with the telescopic electromagnetic sliding rail 91, and the electromagnetic sliding block 92 is electrically connected with the moving module.

[0052] Due to the horizontal slide rails 81 connected to the two sides of the hydraulic cylinders 8, when the mobile module moves along the telescopic electromagnetic slide rail 91 by controlling the electromagnetic slide block 92, the flexible moving oil cylinder 9 moves from the telescopic electromagnetic slide rail 91 to the corresponding horizontal slide rail 81 corresponding to the hydraulic cylinder 8, and the flexible moving slide rail can assist in supporting the base platform 7 parallel to the hydraulic cylinder 8. Due to the fact that the telescopic electromagnetic slide rail 91 is hinged to the horizontal slide rails 81 between the two adjacent hydraulic cylinders 8, when the two hydraulic cylinders 8 are at different heights due to the terrain, the telescopic electromagnetic slide rail 91 can be adjusted correspondingly. With this structure, the mobile module can control the electromagnetic slide block 92 to freely move to the position of each hydraulic cylinder 8 to assist in supporting the hydraulic cylinder 8, thereby ensuring the safety of the base platform 7 construction to a certain extent.

[0053] In the embodiment: the electromagnetic valve 1 includes a valve body 15, a valve core 2 and a spring 3, the valve body 15 is provided with a closed chamber 11 and four oil ports 12 for oil flow, the valve core 2 is slidably fitted in the closed chamber 11, the valve core 2 is used to block the oil port 12, and the spring 3 is provided with two springs 3, respectively arranged at both ends of the closed chamber 11, and the two ends of the two springs 3 are respectively connected to the inner side wall of one end of the closed chamber 11 and one end of the valve core 2 on the corresponding side, the two ends of the valve body 15 are provided with coils 5, the two coils 5 are electrically connected with the controller, and the valve core 2 is a magnetic material;

[0054] Both ends of the valve core 2 are connected with abutting rods 21, both ends of the valve body 15 are provided with sliding cavities 13, the two sliding cavities 13 are symmetrically arranged with the symmetry axis of the valve body 15 as the symmetry axis, and the first slide block 14 can be slidably fitted in the two sliding cavities 13, the cross section of the first slide block 14 is square, one end of the two abutting rods 21 away from the valve core 2 penetrates the closed chamber 11 and the sliding cavity 13 to slidably connect the valve body 15, and the first slide block 14 can abut the abutting rod 21; one end of the two first slide blocks 14 away from the valve core 2 is recessed to form an internal thread groove, the two internal thread grooves are screwed with threaded rods 141, one end of the two threaded rods 141 away from the valve core 2 penetrates the sliding groove inner wall and one end of the valve body 15 outer side wall, and one end of the two threaded rods 141 penetrating out of the valve body 15 is connected with a motor 142, and the two motors 142 are electrically connected with the dynamic adjustment module.

[0055] When the coil 5 fails or the spring 3 fails, the electromagnetic valve 1 cannot control the output end of the hydraulic cylinder 8 to lift, at which time the difference between the value obtained by the threshold comparison module and the displacement sensor transmission data is outside the backup valve threshold range, and an electrical signal is sent to the dynamic adjustment module, and the dynamic adjustment module controls the motor 142 to operate after receiving the electrical signal; when the motor 142 at one end of the valve body 15 operates to drive the first sliding rod 61 to rotate, since both internal threaded grooves are screwed with threaded rods 141, the first sliding block 14 is square in cross section, and the rotation of the threaded rod 141 will not drive the first sliding block 14 to rotate to push the first sliding block 14 to move towards the valve core 2, at which time the motor 142 at the other end of the valve body 15 operates to drive the first sliding block 14 at the other end to move away from the valve core 2; when the first sliding block 14 moves to the end of the abutting rod 21 away from the valve core 2, the continuous rotation of the threaded rod 141 can make the first sliding block 14 push the abutting rod 21 to abut the valve core 2 to move. With this structure, the backup locking valve can be used to control the oil circuit of the electromagnetic valve 1.

[0056] In this embodiment, the electromagnetic valve 1 further comprises a sliding rod 61, a second sliding block 62 and a cleaning brush 4, the cleaning brush 4 is connected to the surface of the valve core 2, the end of the cleaning brush 4 away from the surface of the valve core 2 abuts the inner side wall of the sealed space, a through hole is formed through the valve core 2, the sliding rod 61 is slidably fitted in the through hole, the surface of the sliding rod 61 is provided with a spiral groove 611 and both ends of the sliding rod 61 are fixedly connected to the valve body 15, the second sliding block 62 is fixedly connected to the inner wall of the through hole, and the second sliding block 62 is slidably connected to the spiral groove 611.

[0057] Since the through hole is formed through the valve core 2, the second sliding block 62 is fixedly connected to the inner wall of the through hole, and the second sliding block 62 is slidably connected to the spiral groove 611, when the valve core 2 translates in the sealed chamber 11, the second sliding block 62 is driven to move along the spiral groove 611, thereby driving the valve core 2 to rotate, and the valve core 2 rotates to drive the cleaning brush 4 to rotate. With this structure, the cleaning mechanism can be used to clean the sealed chamber 11 when the valve core 2 moves in the sealed chamber 11, and the dirt after cleaning can flow to the filter screen with the oil, so that the cleaning part is cleaned by the cleaning part, to a certain extent, reducing the possibility of scaling in the sealed chamber 11 affecting the translation of the valve core 2, to a certain extent, enhancing the flowability of the oil in the valve core 2, and making the oil flow conversion efficiency at the oil port 12 faster.

[0058] With this structure, the possibility of the execution mechanism of the quick response and high precision telescopic positioning system of the present application starting the protection system due to the blockage of the electromagnetic valve 1 is reduced, the maintenance frequency of the mechanism is prolonged to a certain extent, thereby reducing the workload of the staff.

[0059] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any modification, change, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. An actuator of a fast response and high precision telescopic positioning system, comprising a base platform, hydraulic cylinders and solenoid valves, the base platform is horizontally arranged, the hydraulic cylinders are multiple, multiple hydraulic cylinders are arranged around the base platform and connected to the lower end surface of the base platform, the solenoid valves are multiple, multiple solenoid valves are connected with multiple hydraulic cylinders one by one and used to control the flow direction and on-off of multiple hydraulic cylinder oil paths, characterized in that: The application relates to a control system for a hydraulic lifting platform. ​ The control system comprises a horizontal judging mechanism and a power-on control module, the horizontal judging mechanism is connected with a base platform and is used for judging whether the base platform is inclined, the horizontal judging mechanism and a solenoid valve are electrically connected with the power-on control module, and the power-on control module is used for controlling the on-off of the solenoid valve when the horizontal judging mechanism judges that the base platform is inclined. The protection system comprises a sensing module, a standby control module and a standby lock valve, the standby lock valve is connected with the hydraulic cylinder and is used for controlling the flow direction and on-off of an oil passage of the hydraulic cylinder, the sensing module is electrically connected with the horizontal judging mechanism, the sensing module is used for sensing whether the output end of the hydraulic cylinder is correctly lifted when the base platform is inclined, the sensing module and the standby lock valve are electrically connected with the standby control module, and the standby control module is used for controlling the standby lock valve to control the oil passage when the sensing module senses that the output end of the hydraulic cylinder is not correctly lifted. The horizontal judging mechanism comprises a control box and a plurality of sensors, the control box is connected with the middle part of the base platform, the control box is internally hollow and forms a closed inner cavity in the shape of a ring-shaped tube, the closed inner cavity is parallel to the base platform and is horizontally arranged with the same center line as the base platform, the closed inner cavity is filled with mercury, the plurality of sensors one-to-one correspond to the plurality of hydraulic cylinders and are electrically connected with the power-on control module, the sensors are provided with an anode plate and a cathode plate, the anode plates and the cathode plates of the plurality of sensors are connected with the inner wall of the closed inner cavity, a plurality of groups of the anode plates and the cathode plates are arranged in a ring-shaped array with the center line of the closed inner cavity as the center line and one-to-one correspond to the positions of the plurality of hydraulic cylinders relative to the closed inner cavity, the plurality of groups of the anode plates and the cathode plates are located on the same horizontal plane and are located above the mercury level, and the power-on control module is used for adjusting the height of the output end of the hydraulic cylinder when the sensor senses that the mercury connects the anode plate and the cathode plate. The power-on control module comprises an identification module, a data conversion module and an execution module, the execution module is used for controlling the on-off of the solenoid valve when the sensor is powered on, the identification module is used for identifying the current value of the sensor, and the data conversion module is used for converting the current value of the sensor into the lifting value of the output end of the hydraulic cylinder. The sensing module comprises a displacement sensor, a threshold comparison module, a state maintaining module and a dynamic adjustment module, the displacement sensor is connected with the output end of the hydraulic cylinder one-to-one, and the displacement sensor is electrically connected with the threshold comparison module. The threshold comparison module is provided with a switching standby valve threshold value, the threshold comparison module is used for receiving and comparing the difference between the value obtained by the data conversion module and the data transmitted by the displacement sensor and comparing the difference with the switching standby valve threshold value. The state maintaining module maintains the adjustment state of the power-on control module when the difference between the value obtained by the data conversion module and the data transmitted by the displacement sensor is within the switching standby valve threshold value range. The dynamic adjustment module sends an electric signal to the standby control module to enable the standby lock valve to control the oil passage when the difference between the value obtained by the data conversion module and the data transmitted by the displacement sensor exceeds the switching standby valve threshold value range. The protection system further comprises flexible moving oil cylinders and a moving module, and sliding rails are arranged between the plurality of hydraulic cylinders, and the flexible moving oil cylinders are arranged on the sliding rails; The moving module is electrically connected with the standby locking valve, and the moving module is used for controlling the flexible moving hydraulic cylinders to move to the positions of the hydraulic cylinders corresponding to the standby locking valve to assist in supporting when the standby locking valve operates.

2. The actuator of a fast response and high precision telescopic positioning system according to claim 1, characterized in that: The hydraulic cylinders are connected with horizontal sliding rails on both sides; the sliding rails are telescopic electromagnetic sliding rails, which are arranged between any two adjacent hydraulic cylinders, and the two ends of the telescopic electromagnetic sliding rails are hinged with the horizontal sliding rails between the two adjacent hydraulic cylinders; the lower ends of the flexible moving oil cylinders are connected with electromagnetic sliding blocks, which are slidably connected with the telescopic electromagnetic sliding rails; and the electromagnetic sliding blocks are electrically connected with the moving module.

3. The actuator of a fast response and high precision telescopic positioning system according to claim 2, characterized in that: The electromagnetic valve comprises a valve body, a valve core and springs, the valve body is provided with a closed chamber and four oil ports for oil flow, the valve core is slidably fitted in the closed chamber, the valve core is used for plugging the oil ports, and the springs are provided with two, two springs are respectively arranged at both ends of the closed chamber, and the two ends of the two springs are respectively connected with the inner side wall of one end of the closed chamber on the corresponding side and one end of the valve core; the two ends of the valve body are provided with coils, the two coils are electrically connected with the controller, and the valve core is a magnetic material; Both ends of the valve core are connected with abutting rods, both ends of the valve body are provided with sliding cavities, the two sliding cavities are symmetrically arranged with the symmetry axis of the valve body as the axis, the first sliding blocks are slidably fitted in the two sliding cavities, the first sliding blocks are square in cross section, one end of the two abutting rods away from the valve core penetrates the closed chamber and the sliding cavity to be slidably connected with the valve body, and the first sliding blocks can abut against the abutting rods; one end of the two first sliding blocks away from the valve core is recessed to form an internal thread groove, the two internal thread grooves are screwed with threaded rods, one end of the two threaded rods away from the valve core penetrates the inner wall of the sliding groove and the outer side wall of one end of the valve body, and one end of the two threaded rods penetrating out of the valve body is connected with a motor, and the two motors are electrically connected with the dynamic adjustment module.

4. The actuator of a fast response and high precision telescopic positioning system according to claim 3, characterized in that: The electromagnetic valve further comprises a sliding rod, a second sliding block and a cleaning brush, the cleaning brush is connected with the surface of the valve core, one end of the cleaning brush away from the surface of the valve core abuts against the inner side wall of the closed space, a through hole is formed in the valve core, the sliding rod is slidably fitted in the through hole, the surface of the sliding rod is provided with a spiral groove, and both ends of the sliding rod are fixedly connected with the valve body, and the second sliding block is fixedly connected with the inner wall of the through hole and slidably connected with the spiral groove.

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