Oil cylinder synchronous amplifier of multi-way servo valve

Abstract

The invention discloses an oil cylinder synchronous amplifier of a multi-way servo valve, which belongs to the field of amplifiers and mainly comprises a shell, a circuit board, a frame body, a first power connection board, a second power connection board, a plug board and a clamp mechanism. Wherein a first batten and a second batten are arranged on the inserting plate; the clamp mechanism comprises a push block linked with the button, a control block, a fixed reed and other core transmission parts; when the single-side button is independently pressed, the transmission hook is unlimited, so that the clamp block extends out under the force of the spring, and an interference-free independent wiring space is provided; when the first side double buttons are pressed, the push block group jointly presses the control block to extend into the adjacent amplifier through the push rod transmission insertion plate to realize cascade power supply, so that the potential safety hazard of parallel wiring is avoided; when the double buttons on the second side are pressed at the same time, the push block group presses the fixed reed so as to unlock the frame body, so that the circuit board can be taken out without removing wires; wire connection and disassembly are not affected by other wires; lines are simple, and potential safety hazards are reduced; maintenance is simple and convenient, and efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of amplifier technology, and particularly relates to a hydraulic cylinder synchronous amplifier for multi-channel servo valves. Background Technology

[0002] An amplifier is a dedicated controller for driving and controlling electro-hydraulic servo valves. Its function is to compare, amplify, and calculate the input command signal (voltage) with the system feedback signal (voltage), and then output a control current proportional to the deviation voltage signal to the control coil of the servo valve torque motor, thereby controlling the valve spool opening. Electro-hydraulic servo valves with amplifiers, combined with various hydraulic equipment and measuring sensors, can form electro-hydraulic servo systems that control physical quantities such as position, speed, acceleration, and force, such as valve-controlled cylinders, valve-controlled motors, and valve-controlled pumps. In systems using multi-channel servo valves to control cylinders for synchronous extension and retraction, the cylinder synchronization amplifier of the multi-channel servo valve is the core component of the electro-hydraulic servo control system. It can control high-power hydraulic energy output with a small-power electrical signal, playing a crucial role in the static and dynamic characteristics of the system. However, existing multi-channel servo valve cylinder synchronization amplifiers have revealed significant shortcomings in practical engineering applications: The existing cylinder synchronization amplifier for multi-way servo valves requires the connection of multiple wires. Because the existing structure of the amplifier makes the distance between the wires too close and the space too small, it is difficult to connect and disconnect the wires, which consumes a lot of time.

[0003] In existing hydraulic cylinder synchronous telescopic systems, multiple multi-way servo valves are needed to control the synchronous telescopic movement of multiple cylinders, and each multi-way servo valve requires an amplifier for control. In current technology, these amplifiers are generally connected to the same power supply via wires, resulting in a large number of wires, complex circuitry, and unavoidable situations where multiple wires are connected to a single connection point. This not only complicates the wiring process but also poses significant safety hazards.

[0004] In the existing technology, when repairing an amplifier, all the wires connected to the amplifier must be disconnected before the amplifier can be taken out of the electrical control cabinet for repair. Moreover, all the wires need to be reconnected after the repair. Since the amplifier needs to be connected to multiple electrical components and there are many wires, the maintenance work is heavy and inefficient. Summary of the Invention

[0005] The technical problem to be solved: The cylinder synchronization amplifier for the multi-channel servo valve provided by this invention can solve the problems mentioned above.

[0006] Technical Solution: To achieve the above objectives, the present invention adopts the following technical solution: a cylinder synchronous amplifier for a multi-channel servo valve, comprising a housing, wherein the housing is provided with a connecting groove; a frame, located inside the housing; a circuit board, fixedly connected to the frame and located inside the housing; a first power board and a second power board, located inside the housing, wherein the first power board and the second power board are both electrically connected to the circuit board; an insert plate, slidably disposed in the housing along the front-back direction, wherein the insert plate is provided with a first strip and a second strip, wherein the first strip and the first power board are electrically connected, and the second strip and the second power board are electrically connected; two sets of clamping mechanisms, respectively disposed on the first side and the second side of the housing (1); the clamping mechanism includes a first button, a second button and two sets of gripper assemblies respectively corresponding to the first button and the second button, wherein the first button and the second button are slidably connected to the housing; the gripper assembly includes a clamping block slidably connected to the housing; the clamping mechanism also includes clamping blocks respectively connected to the first button. The first and second push blocks are linked to the lower end of the second button, and a hook is rotatably disposed in the housing. When the first button or the second button is pressed alone, the corresponding first push block or the second push block is driven to trigger the hook to deflect, thereby releasing the limit on the corresponding clamp block and allowing the clamp block to extend out of the housing. A control block and a push rod linked to one end of the insert plate are provided below the clamp mechanism on the first side of the housing. When the first button and the second button on the first side are pressed simultaneously, the first push block and the second push block on the first side press down together, and the insert plate is driven to extend outward into the connection slot of the adjacent amplifier through the push rod. A fixing spring for locking the frame is provided below the clamp mechanism on the second side of the housing. When the first button and the second button on the second side are pressed simultaneously, the first push block and the second push block on the second side press down together and drive the fixing spring to undergo elastic deformation, thereby releasing the locking of the fixing spring to the frame.

[0007] As a preferred embodiment of the present invention, the control block is slidably disposed within the housing and located below the clamping mechanism on the first side. A hook plate is provided below the control block, and a hook plate inclined surface is provided on the front side of the hook plate. The amplifier also includes an unlocking plate, which is slidably disposed on the control block and located above the hook plate. An unlocking inclined surface is provided on the front side of the unlocking plate.

[0008] As a preferred embodiment of the present invention, the amplifier further includes a locking pin and a locking pin spring; the locking pin is located on the front side of the control block, and the rear side of the locking pin is provided with a locking pin inclined surface that can cooperate with the hook plate inclined surface and the unlocking inclined surface; the locking pin spring is located inside the housing and is used to drive the locking pin to move backward to position the control block.

[0009] As a preferred embodiment of the present invention, the amplifier further includes a connecting rod and a tension spring; the lower end of the push rod is rotatably connected to the housing, and the upper end of the push rod abuts against the insert plate; one end of the connecting rod is hinged to the control block, and the other end is hinged to the push rod; one end of the tension spring is rotatably connected to the housing, and the other end is rotatably connected to the insert plate, for driving the insert plate to move in a direction that retracts into the housing.

[0010] As a preferred embodiment of the present invention, the clamping mechanism further includes a first pawl torsion spring, a second pawl torsion spring, a first button spring, and a second button spring; the lower end of the first button is provided with a first limiting pin; the lower end of the second button is provided with a second limiting pin; the first push block is hinged to the lower end of the first button, and the upper end of the first push block is provided with a first pawl; the second push block is hinged to the lower end of the second button, and the upper end of the second push block is provided with a second pawl; the first pawl torsion spring is located inside the first push block and is used to drive the first push block to rotate towards the first pawl and close to the first limiting pin; the second pawl torsion spring is located inside the second push block and is used to drive the second push block to rotate towards the second pawl and close to the second limiting pin; the first button spring and the second button spring are respectively disposed below the corresponding buttons and are used to drive the buttons to reset.

[0011] As a preferred embodiment of the present invention, the gripper assembly further includes a gripper, a sliding pin, a lifting plate, a lifting spring, and a hook torsion spring; the housing is provided with multiple position slots; the clamping block and the position slots are slidably connected, and the clamping block is provided with a control slot group composed of interconnected vertical slots and inclined slots; the gripper and the clamping block are rotatably connected; the sliding pin is fixedly disposed in the position slot and slidably engaged with the control slot group; the lifting plate is slidably disposed below the clamping block, the upper end of the lifting plate is hinged to the clamping block, and the lower end is provided with a limiting slot; the hook is located below the first push block and the second push block; the hook torsion spring is disposed in the hook and is used to drive the hook to rotate in the direction of extending into the limiting slot; the lifting spring is located in the housing and is used to drive the lifting plate to move upward after the limiting is released.

[0012] As a preferred embodiment of the present invention, the amplifier further includes a sliding plate; the sliding plate is fixedly disposed within the housing, and the first power contact plate and the second power contact plate are both fixedly disposed on the sliding plate; a sliding groove is provided below the sliding plate, and the insert plate is slidably connected to the sliding groove.

[0013] As a preferred embodiment of the present invention, the frame is provided with a fixing block; the fixing spring is fixedly disposed in the housing, the fixing spring is provided with a fixing hook, the fixing hook is located above the fixing block to lock the frame; the fixing spring is also provided with a driving slope and a spring slope, and the first push block and the second push block on the second side can press down the driving slope together.

[0014] As a preferred embodiment of the present invention, the gripper assembly further includes a contact, a contact sleeve, a contact rod, and a contact spring; a support plate is provided on the frame; a contact piece is provided on the clamp block; the contact is fixedly connected to the support plate, and the contact is electrically connected to the circuit board; the contact sleeve is slidably disposed within the housing, and the contact sleeve rests on the contact piece; the contact rod is slidably disposed within the housing, and the contact rod and the contact sleeve are slidably connected, with the contact rod resting on the contact; the contact spring is disposed within the contact rod to drive the contact rod and the contact sleeve to move in a direction away from each other and to provide a clamping force.

[0015] As a preferred embodiment of the present invention, in the clamping mechanism located on the first side of the housing, the first button is electrically connected to the first electrical contact plate corresponding to the electrical contact rod in the gripper assembly, and the second button is electrically connected to the second electrical contact plate corresponding to the electrical contact rod in the gripper assembly.

[0016] Compared with the prior art, the advantages of the present invention are: 1. By setting up a clamping assembly, when connecting or disconnecting wires, the operator first presses a single button, the transmission hook is released from its limit, and the clamping block is raised by the spring force, which moves the gripper to a position away from other wires, thus providing sufficient operating space so that the connection or disconnection of wires will not be affected by other wires, making the operation simpler and more convenient.

[0017] 2. By setting up a plug-in board, when multiple amplifiers are working together, only one power supply and one amplifier need to be electrically connected. Then, the plug-in board is controlled to extend and be inserted into another amplifier. This allows each amplifier and power supply to be electrically connected, avoiding the use of multiple wires and the problem of multiple wires connected to a single connection point. This simplifies the wiring and reduces safety hazards.

[0018] 3. By setting up a frame and fixing springs, when the circuit board needs to be repaired, the fixing springs can be pushed to bend and move the fixing hook away from the fixing block, unlocking the frame. This allows the frame and circuit board to be quickly disassembled and repaired without disconnecting wires, making maintenance simple and convenient and improving maintenance efficiency. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention; Figure 2 For the present invention Figure 1 A cross-sectional view along the AA direction; Figure 3 For the present invention Figure 1 Cross-sectional view along the BB direction; Figure 4 For the present invention Figure 1 A cross-sectional view along the CC direction; Figure 5 For the present invention Figure 1 A cross-sectional view along the DD direction; Figure 6 For the present invention Figure 1 A cross-sectional view along the EE direction; Figure 7 For the present invention Figure 4 A cross-sectional view along the FF direction; Figure 8 For the present invention Figure 6 Cross-sectional view along the GG direction; Figure 9 For the present invention Figure 1 Enlarged view at point I; Figure 10 For the present invention Figure 4 Enlarged view at point II; Figure 11 For the present invention Figure 5 Enlarged view of section III in the middle; Figure 12 This is a three-dimensional view of the slide plate of the present invention. Detailed Implementation

[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0021] See Figures 1-12 The cylinder synchronous amplifier for a multi-channel servo valve, in this embodiment, mainly includes a housing 1, a circuit board 55, a frame 4, a first power board 48, a second power board 49, a plug plate 43, and a clamping mechanism. To achieve cascading of adjacent devices, the housing 1 is provided with a connecting groove 3; the frame 4, as the internal skeleton, is located inside the housing 1, and the core circuit board 55 is fixedly connected to the frame 4, and the whole is protected by the housing 1; in terms of power distribution, the first power board 48 and the second power board 49 are distributed inside the housing 1 and are both electrically connected to the circuit board 55 for signal or power input; the plug plate 43 is slidably disposed at the bottom layer inside the housing 1 along the front-back direction, and a first strip 44 and a second strip 45 are embedded parallel to each other on the plug plate 43, with the first strip 44 electrically connected to the first power board 48, and the second strip 45 electrically connected to the second power board 49.

[0022] To achieve interference-free wiring and multi-mode operation, two sets of clamping mechanisms are symmetrically provided on the first side (the right front side as shown in the attached figure) and the second side (the left front side as shown in the attached figure) of the housing 1. Each clamping mechanism mainly includes an independent first button 21, a second button 23, and two sets of independent gripper assemblies. The first button 21 and the second button 23 are slidably connected to the housing 1 from the top. The two sets of gripper assemblies are controlled by the first button 21 and the second button 23, respectively. The gripper assembly includes a telescopic actuator clamping block 8, which is slidably connected to the side wall of the housing 1.

[0023] See Figure 4 , Figure 10 The clamping mechanism includes a stroke conversion mechanism below the button, comprising a first push block 25, a second push block 27, a first pawl torsion spring 29, a second pawl torsion spring 30, a first button spring 31, and a second button spring 32. The lower end of the first button 21 is laterally provided with a first limiting pin 22, and the lower end of the second button 23 is similarly provided with a second limiting pin 24. The upper end of the first push block 25 is hinged to the lower end of the first button 21, and a first pawl 26 extends outward from its outer side. Similarly, the upper end of the second push block 27 is hinged to the lower end of the second button 23, and a second pawl 28 is provided. The internal first pawl torsion spring 29 constantly drives the first push block 25 to rotate towards the first pawl 26 and closer to the first limiting pin 22 to maintain a preset posture. The second pawl torsion spring 30 constrains the second push block 27 using the same principle. The first button spring 31 and the second button spring 32 are respectively placed at the bottom of the two buttons to provide lifting and restoring force.

[0024] See Figures 1-3 , Figure 9The gripper assembly at the actuator end also includes a gripper 16 for holding the wire, a sliding pin 17 fixed to the housing, a lifting plate 11, a lifting spring 13 providing lifting power, and a hook 14 and a hook torsion spring 15 for controlling the timing of the action. Multiple position slots 2 are provided on the outer wall of the housing 1 for the clamping block 8 to slide up and down. A "control slot group" consisting of interconnected vertical slots 10 and inclined slots 9 is provided on the side of the clamping block 8; one end of the gripper 16 is rotatably hinged to the clamping block 8; the sliding pin 17 is fixedly disposed on the inner wall of the position slot 2 and is always inserted into the aforementioned control slot group (vertical slot 10 and inclined slot 9) for sliding engagement. At the bottom of the drive, the lifting plate 11 is slidably positioned directly below the clamping block 8, with its upper end hinged to the clamping block 8 and its lower end having a controlled limiting groove 12. The hook 14 is rotatably mounted on the side of the downward stroke of the push blocks (25, 27). The hook torsion spring 15 drives the hook tip of the hook 14 to extend into the limiting groove 12 to lock the lifting plate below. The lifting spring 13 is always ready at the bottom to drive the lifting plate 11 to spring upward. Two sets of clamping mechanisms are also provided on the rear side of the first side and the rear side of the second side. The clamping mechanism on the first side of the housing 1 is used to connect to the positive and negative poles of the power supply, and the clamping mechanism on the rear side of the first side of the housing 1 is used to connect to the external control signal. The clamping mechanisms on the second side and the rear side of the second side of the housing 1 are used to connect to the control coils of the two torque motors on the corresponding multi-way servo valves.

[0025] See Figure 1 , Figure 4 , Figure 5 , Figure 7 , Figure 9 , Figure 11 To achieve horizontal cascading, a cascading trigger element is added deep within the clamping mechanism on the first side of the amplifier (as shown in the attached diagram, the right front side): a control block 33 and a delay unlocking plate 36. The control block 33 is slidably mounted on the bottom right side of the housing 1, restricted by the slide rails on both sides, and directly opposite the combined downward end path of the two push blocks (25, 27) above. A hook plate 34 is fixed to the bottom surface of the control block 33, and the front chamfer of the hook plate 34 forms a hook plate slope 35. The unlocking plate 36 is slidably mounted on top of the control block 33 and directly above the hook plate 34, and its front chamfer forms an unlocking slope 37.

[0026] Furthermore, to maintain the cascaded state, a locking pin 38 and a locking pin spring 40 are added. The locking pin 38 is located laterally in the housing cavity in front of the control block 33, and its tail is provided with a locking pin slope 39 that frictionally engages with the hook plate slope 35 and the unlocking slope 37; the locking pin spring 40 presses against the front end of the locking pin, driving it to lock into position backward.

[0027] To convert the downward pressing force into a lateral cascade thrust, a crank-connecting rod mechanism is used: connecting rod 41, push rod 42, and tension spring 50. Push rod 42 is a long rocker arm, with its lower end rotatably hinged to the base of housing 1 and its upper end freely resting against the side of insert plate 43; one end of connecting rod 41 is hinged to the downward-moving control block 33, and the other end is hinged to the middle section of push rod 42; one end of tension spring 50 is hung on housing 1, and the other end pulls on insert plate 43.

[0028] See Figure 1 , Figure 2 , Figure 5 , Figure 9 , Figure 12 The amplifier also includes a slide plate 46; the slide plate 46 is fixedly disposed inside the housing 1, and the first power board 48 and the second power board 49 are both fixedly disposed on the slide plate 46; a slide groove 47 is provided below the slide plate 46, and the insert plate 43 is slidably connected to the slide groove 47.

[0029] See Figure 1 , Figure 6 , Figure 8 To address the maintenance needs of the second side (as shown in the attached diagram, the left front side), a fixing block 7 is injection-molded or installed on the bottom side edge of the frame 4; simultaneously, a fixing spring 51 is riveted to the corresponding position on the inner bottom wall of the housing 1; the end of the fixing spring 51 is bent to form a fixing hook 54, which, under normal conditions, is fastened above the fixing block 7 to lock the entire internal frame. A driving inclined surface 52 is machined on the force-bearing surface of the back of the fixing spring 51, which is directly opposite to the combined downward trajectory of the two push blocks (25, 27) on the upper second side (as shown in the attached diagram, the left front side); another spring inclined surface 53 is used for guidance during installation.

[0030] See Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 9 Whether it's a single-line ejection or a complete extraction for maintenance, the internal contact system is indispensable. Each gripper assembly is equipped with a contact 6, a contact sleeve 18, a contact rod 19, and a contact spring 20.

[0031] A support plate 5 extends longitudinally from the side wall of the frame 4; a metal contact piece 56 is embedded in the base of the clamping wire in the clamping block 8; the contact 6 is fixedly welded to the support plate 5 and electrically connected to the core circuit board 55 through internal copper foil or short wire; the connecting sleeve 18 slides laterally through the isolation wall of the housing 1, with its front end abutting against the contact piece 56 of the clamping block; the connecting rod 19 is coaxially sleeved in the connecting sleeve 18 and can slide relative to it, with its tail end abutting against the fixed contact 6; the connecting spring 20 is compressed and pre-installed in the inner cavity of the connecting rod 19, and uses the tension at both ends of its spring to push the connecting rod 19 and the connecting sleeve 18 away from each other. In the clamping mechanism located on the first side of the housing 1, the first button 21 is electrically connected to the first connecting plate 48 corresponding to the connecting rod 19 in the gripper assembly, and the second button 23 is electrically connected to the second connecting plate 49 corresponding to the connecting rod 19 in the gripper assembly.

[0032] The working principle of the cylinder synchronization amplifier of this multi-channel servo valve is as follows: like Figure 1 , Figure 2 For the internal structure of this invention, in the two sets of clamping mechanisms located on the right side of the housing 1, the front clamping mechanism needs to be electrically connected to the positive and negative terminals of the power supply, and the rear clamping mechanism needs to be electrically connected to the external control signal. In the two sets of clamping mechanisms located on the left side of the housing 1, the two sets of clamping mechanisms need to be electrically connected to the control coils of the two torque motors on the corresponding multi-way servo valve. When it is necessary to connect the wires to the cylinder synchronous amplifier of the multi-way servo valve, the wires corresponding to the first button 21 can be installed first. First, the first button 21 is pushed down by the first button spring 31, which drives the first push block 25 to move downward. When the first push block 25 moves away from the second push block 27, the first push block 25 rotates counterclockwise under the action of the first pawl torsion spring 29. Figure 10In the middle section, the first pawl 26 is limited to a horizontal position by the first limiting pin 22. As the first button 21 descends, when the first pawl 26 touches the hook 14 below it, the hook 14 pushes the first pawl 26 to rotate against the first pawl torsion spring 29. When the first pawl 26 passes the hook 14, the first button 21 stops descending and is released. Under the action of the first button spring 31, the first button 21 is pushed to move upward, which drives the first pawl 26 to move upward. Due to the action of the first limiting pin 22, the first pawl 26 pushes the hook 14 to rotate against the hook torsion spring 15 and exits the limiting groove 12, thus releasing the lifting plate 11 from the limiting position. Under the action of the lifting spring 13, and due to the hinge between the lifting plate 11 and the clamp block 8, the clamp block 8 moves upward. Since the sliding pin 17 is fixedly connected in the position groove 2 and slidably connected to the control groove assembly, the sliding pin 17 slides along the vertical groove 10. As the clamp block 8 rises, when the sliding pin 17 enters the inclined groove 9, the clamp block 8 rotates outward relative to the lifting plate 11, causing the gripper 16 to extend out of the position groove 2. The gripper 16 is released from its limit and can be flipped outward. When the sliding pin 17 reaches the lower end of the inclined groove 9, the clamp block 8 stops moving, and the gripper 16 reaches its highest point. The required connecting wire is then inserted into the gripper 16 and the clamp. Between the clamp blocks 8, the rotating jaw 16 clamps the wire, and then the clamp block 8 is pushed downward, causing the lifting plate 11 to move downward against the lifting spring 13, thereby causing the sliding pin 17 to slide along the control groove group. During the descent, the clamp block 8 first rotates to stand upright, and then descends vertically. As the clamp block 8 descends, it causes the jaw 16 to enter the position groove 2. The position groove 2 limits the clamp 16 to clamp the wire, ensuring the electrical connection between the wire and the contact piece 56. When the clamp block 8 resets, the hook 14 enters the limiting groove 12 under the action of the hook torsion spring 15, limiting the lifting plate 11, completing the wire installation at the position corresponding to the first button 21; then the wire installation is performed on the second button 21. To install the wires corresponding to the second button 23, first overcome the pressure of the second button spring 32 to push the second button 23 downward, causing the second push block 27 to move downward. Through the action of the second pawl torsion spring 30, the second pawl 28 can pass over the hook 14 below it. Then release the second button 23, which causes the second pawl 28 to move upward. Through the action of the second limit pin 24, the second pawl 28 pushes the hook 14 to rotate against the hook torsion spring 15, exiting the limit groove 12 and unlocking the lifting plate 11. Similarly, the above operation can realize the installation of the wires corresponding to the second button 23. Based on the above principle, the connection of all wires on the amplifier can be completed.

[0033] After the wiring is completed, when it is necessary to electrically connect all the amplifiers and power supplies, only one amplifier and power supply need to be electrically connected via wiring among the required multiple amplifiers. In a set of clamping mechanisms on the first side (as shown in the attached diagram on the right front side), the first button 21 and the second button 23 on the right side are pressed down simultaneously against the first button spring 31 and the second button spring 32. Because the first push block 25 and the second push block 27 are tightly pressed together, and under the action of the first limit pin 22 and the second limit pin 24, the first push block 25 and the second push block 27 will not rotate and will move downward together. When the first push block 25 and the second push block 27 touch the control block 33, they push the control block 33 and the hook plate 34 downwards. Since one end of the connecting rod 41 is hinged to the control block 33 and the other end is hinged to the push rod 42, the push rod 42 is rotated. The push rod 42 pushes the insert plate 43 to slide outwards against the tension spring 50 and through the connecting groove 3 of the next amplifier, inserting it into the sliding groove 47 of the next amplifier. This causes the first plate 44 to touch the first contact plate 48 of the other amplifier, and the second plate 45 to touch the second contact plate 49 of the other amplifier, thereby causing the two amplifiers to move downwards. The first and second electrical contact plates 48 and 49 are electrically connected. Since the wires are electrically connected via the contact piece 56, the contact sleeve 18, the contact rod 19, the contact 6, and the circuit board 55, and the first and second electrical contact plates 48 and 49 are electrically connected to their respective contact rods 19, this also allows the next amplifier and wires to be electrically connected. When the hook plate slope 35 on the hook plate 34 and the locking pin slope 39 on the locking pin 38 touch, the locking pin spring 40 pushes the locking pin 38 to move and retract. When the unlocking plate 36 touches the locking pin slope 39, it pushes the unlocking plate 36 upwards. After passing the hook plate 34, the first button 21 and the second button 23 stop pressing down. Under the action of the locking pin spring 40, the locking pin 38 is pushed out. Under the action of the locking pin inclined surface 39, the unlocking plate 36 continues to rise. When the locking pin 38 is fully extended, the locking pin 38 positions the control block 33, releasing the first button 21 and the second button 23. Under the action of the first button spring 31 and the second button spring 32, the first button 21 and the second button 23 are pushed up to reset, thus completing the electrical connection between the amplifier and the next amplifier. Similarly, the above steps can complete the electrical connection between all amplifiers and the power supply.

[0034] When it is necessary to disconnect the electrical connection between the amplifiers, in the first set of clamping mechanisms on the first side (as shown in the attached diagram on the right front side), the first button 21 and the second button 23 on the right side must be pressed down simultaneously against the first button spring 31 and the second button spring 32. This causes the first push block 25 and the second push block 27 to push the control block 33 downward, thereby causing the unlocking plate 36 and the locking pin inclined surface 39 to touch, pushing the locking pin 38 to retract against the locking pin spring 40. After the unlocking plate 36 passes the locking pin 38, the first button 21 and the second button 23 move to the lowest position. Under the action of the locking pin spring 40, the locking pin 38 is pushed out, and then the first button 21 and the second button 23 are released. Under the action of 32, the first button 21 and the second button 23 are pushed up. Under the action of the tension spring 50, the insert plate 43 is retracted, pushing the push rod 42 to reverse. Through the connecting rod 41, the control block 33 is moved upward, thereby driving the unlocking plate 36 upward through the hook plate 34, so that the unlocking inclined surface 37 and the locking pin 38 touch. This overcomes the locking pin spring 40 pushing the locking pin 38 to retract. When the unlocking plate 36 passes the locking pin 38, since the tip of the unlocking plate 36 is longer than the tip of the hook plate 34, the locking pin 38 will directly pass the hook plate 34 and will not be inserted between the hook plate 34 and the unlocking plate 36, thereby unlocking the control block 33. Under the action of the tension spring 50, the control block 33 is reset, and the electrical connection between the amplifiers is released.

[0035] When circuit board 55 needs to be repaired, the clamping mechanism on the second side (as shown in the attached diagram, the left front side) should be selected. At the same time, the first button spring 31 and the second button spring 32 should be overcome to press down the first button 21 and the second button 23 on the left side, thereby driving the first push block 25 and the second push block 27 to follow and fall until they touch the driving inclined surface 52. This will push the fixed spring 51 to deform, so that the fixed hook 54 moves away from the fixed block 7, unlocking the frame 4. Pull the frame 4 upward to separate the contact 6 and the connecting rod 19. Since circuit board 55 is fixedly installed on the frame 4, circuit board 55 can be removed. Release the first button 21 and the second button 23. The first button 21 and the second button 23 will reset, and then the circuit board 55 can be repaired. After the repair, push the frame 4 into the housing 1. When the fixed block 7 and the spring inclined surface 53 touch, push the fixed spring 51 to deform. When the frame 4 is in place, the fixed spring 51 will reset, pushing the fixed hook 54 to limit the fixed block 7, thus completing the installation of circuit board 55.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cylinder synchronization amplifier for a multi-channel servo valve, characterized in that, include: The housing (1) is provided with a connecting groove (3); The frame (4) is located inside the shell (1); The circuit board (55) is fixedly connected to the frame (4) and located inside the housing (1); The first power board (48) and the second power board (49) are located inside the housing (1), and both the first power board (48) and the second power board (49) are electrically connected to the circuit board (55). The insert plate (43) is slidably disposed in the housing (1) in the front-back direction. The insert plate (43) is provided with a first strip (44) and a second strip (45). The first strip (44) is electrically connected to the first power receiving plate (48), and the second strip (45) is electrically connected to the second power receiving plate (49). Two sets of clamping mechanisms are respectively disposed on the first and second sides of the housing (1); The clamping mechanism includes a first button (21), a second button (23), and two sets of gripper assemblies corresponding to the first button (21) and the second button (23), respectively. The first button (21) and the second button (23) are slidably connected to the housing (1). The gripper assembly includes a clamping block (8) slidably connected to the housing (1). The clamping mechanism also includes a first push block (25) and a second push block (27) that are respectively linked to the lower ends of the first button (21) and the second button (23), and a hook (14) that is rotatably disposed in the housing (1); When the first button (21) or the second button (23) is pressed, the corresponding first push block (25) or second push block (27) triggers the hook (14) to deflect, thereby releasing the limit on the corresponding clamp block (8) and causing the clamp block (8) to extend out of the housing (1). Inside the housing (1), below the clamping mechanism corresponding to the first side, there is a control block (33) and a push rod (42) linked to one end of the insert plate (43). When the first button (21) and the second button (23) on the first side are pressed at the same time, the first push block (25) and the second push block (27) on the first side press down the control block (33) together, and the insert plate (43) is driven to extend outward into the connecting groove (3) of the adjacent amplifier through the push rod (42). Inside the housing (1), below the clamping mechanism on the second side, there is a fixing spring (51) for locking the frame (4). When the first button (21) and the second button (23) on the second side are pressed at the same time, the first push block (25) and the second push block (27) on the second side press down together and drive the fixing spring (51) to undergo elastic deformation, so as to release the locking of the fixing spring (51) and the frame (4).

2. The cylinder synchronization amplifier for the multi-channel servo valve according to claim 1, characterized in that: The control block (33) is slidably disposed inside the housing (1) and located below the clamping mechanism on the first side. A hook plate (34) is provided below the control block (33), and a hook plate inclined surface (35) is provided on the front side of the hook plate (34). The amplifier also includes an unlocking plate (36), which is slidably disposed on the control block (33) and located above the hook plate (34). The front side of the unlocking plate (36) is provided with an unlocking ramp (37).

3. The cylinder synchronization amplifier for the multi-channel servo valve according to claim 2, characterized in that: The amplifier also includes a locking pin (38) and a locking pin spring (40). The locking pin (38) is located on the front side of the control block (33), and the rear side of the locking pin (38) is provided with a locking pin inclined surface (39) that can cooperate with the hook plate inclined surface (35) and the unlocking inclined surface (37). The locking pin spring (40) is located inside the housing (1) and is used to drive the locking pin (38) to move backward to position the control block (33).

4. The cylinder synchronization amplifier for the multi-channel servo valve according to claim 1, characterized in that: The amplifier also includes a connecting rod (41) and a tension spring (50); The lower end of the push rod (42) is rotatably connected inside the housing (1), and the upper end of the push rod (42) abuts against the insert plate (43); One end of the connecting rod (41) is hinged to the control block (33), and the other end is hinged to the push rod (42); One end of the tension spring (50) is rotatably connected to the housing (1), and the other end is rotatably connected to the insert plate (43) to drive the insert plate (43) to move in the direction of retracting into the housing (1).

5. The cylinder synchronization amplifier for a multi-channel servo valve according to claim 1, characterized in that: The clamping mechanism also includes a first pawl torsion spring (29), a second pawl torsion spring (30), a first button spring (31), and a second button spring (32); The first button (21) is provided with a first limiting pin (22) at its lower end; the second button (23) is provided with a second limiting pin (24) at its lower end. The first push block (25) is hinged to the lower end of the first button (21), and the upper end of the first push block (25) is provided with a first pawl (26); the second push block (27) is hinged to the lower end of the second button (23), and the upper end of the second push block (27) is provided with a second pawl (28). The first pawl torsion spring (29) is located inside the first push block (25) and is used to drive the first push block (25) to rotate toward the first pawl (26) and closer to the first limiting pin (22); the second pawl torsion spring (30) is located inside the second push block (27) and is used to drive the second push block (27) to rotate toward the second pawl (28) and closer to the second limiting pin (24); The first button spring (31) and the second button spring (32) are respectively disposed below the corresponding button to drive the button to reset.

6. The cylinder synchronization amplifier for a multi-channel servo valve according to claim 5, characterized in that: The gripper assembly also includes a gripper (16), a sliding pin (17), a lifting plate (11), a lifting spring (13), and a hook torsion spring (15). The housing (1) is provided with a plurality of position slots (2); the clamp block (8) and the position slots (2) are slidably connected, and the clamp block (8) is provided with a control slot group consisting of interconnected vertical slots (10) and inclined slots (9); The gripper (16) and the clamp block (8) are rotatably connected; the sliding pin (17) is fixedly disposed in the position groove (2) and slides in cooperation with the control groove group; The lifting plate (11) is slidably disposed below the clamp block (8). The upper end of the lifting plate (11) is hinged to the clamp block (8), and the lower end is provided with a limiting groove (12). The hook (14) is located below the first push block (25) and the second push block (27); the hook torsion spring (15) is disposed inside the hook (14) to drive the hook (14) to rotate in the direction of extending into the limiting groove (12); The lifting spring (13) is located inside the housing (1) and is used to drive the lifting plate (11) to move upward after the lifting plate (11) is released from its limit.

7. The cylinder synchronization amplifier for the multi-channel servo valve according to claim 1, characterized in that: The amplifier also includes a slide plate (46); The slide plate (46) is fixedly installed inside the housing (1), and the first power plate (48) and the second power plate (49) are both fixedly installed on the slide plate (46); The slide plate (46) is provided with a slide groove (47) below it, and the insert plate (43) is slidably connected to the slide groove (47).

8. The cylinder synchronization amplifier for a multi-channel servo valve according to claim 1, characterized in that: The frame (4) is provided with a fixing block (7); The fixing spring (51) is fixedly installed inside the housing (1), and the fixing spring (51) is provided with a fixing hook (54), which is located above the fixing block (7) to lock the frame. The fixed spring (51) is also provided with a driving slope (52) and a spring slope (53), and the first push block (25) and the second push block (27) on the second side can press down the driving slope (52) together.

9. The cylinder synchronization amplifier for a multi-channel servo valve according to claim 1, characterized in that: The gripper assembly also includes a contact (6), a power-connecting sleeve (18), a power-connecting rod (19), and a power-connecting spring (20). The frame (4) is provided with a support plate (5); the clamp block (8) is provided with a contact piece (56); The contact (6) is fixedly connected to the bracket plate (5), and the contact (6) and the circuit board (55) are electrically connected; The electrical contact sleeve (18) is slidably disposed inside the housing (1), and the electrical contact sleeve (18) rests on the contact piece (56); The connecting rod (19) is slidably disposed inside the housing (1), the connecting rod (19) and the connecting sleeve (18) are slidably connected, and the connecting rod (19) rests on the contact (6); The power-connecting spring (20) is disposed inside the power-connecting rod (19) to drive the power-connecting rod (19) and the power-connecting sleeve (18) to move away from each other and to provide a clamping force.

10. The cylinder synchronization amplifier for a multi-channel servo valve according to claim 9, characterized in that: Located on the first side of the housing (1), the first button (21) is electrically connected to the first power contact plate (48) corresponding to the power contact rod (19) in the gripper assembly, and the second button (23) is electrically connected to the second power contact plate (49) corresponding to the power contact rod (19) in the gripper assembly.

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