A dual-channel filling valve flow synchronous regulation device

Abstract

This utility model discloses a dual-channel filling valve flow synchronization regulating device, including a filling valve body. An oil passage seat is fixedly installed on the top of the filling valve body. A main oil inlet pipe is installed on the side wall of the filling valve body. A flow synchronization regulating device body is installed at the end of the main oil inlet pipe. The flow synchronization regulating device body includes a throttling pipe fixedly connected to the main oil inlet pipe. A throttling baffle is inserted inside the throttling pipe. A screw is installed on the upper side of the throttling baffle, and a drive motor is fixedly installed on the top of the screw. This dual-channel filling valve flow synchronization regulating device buffers the oil about to enter the filling valve body, pre-limiting or buffering the instantaneous large flow at the inlet, such as the flow peak during system startup or sudden load changes. This prevents high pressure and high flow from directly impacting the valve core, seals, and other core components inside the filling valve, reducing wear and fatigue, and extending the service life of the valve components.

Description

Technical Field

[0001] This utility model relates to the field of filling valves, specifically a dual-channel filling valve flow synchronous adjustment device. Background Technology

[0002] A dual-channel filling valve is a type of valve used in hydraulic systems to achieve dual-channel fluid replenishment and control. Its working principle is based on the synergistic effect of valve core movement and pressure difference: when one side of the system (such as channel A) needs filling, the inlet pressure pushes the valve core to move in the corresponding direction, opening the channel A. Fluid flows into this circuit through the unidirectional structure, while simultaneously closing channel B to prevent cross-contamination. If channel B needs filling, the pressure signal drives the valve core to move in the opposite direction, opening the channel B and blocking channel A. In addition, the valve usually has an unloading or pressure-holding structure. When the system pressure reaches the set value, the valve core resets and cuts off the filling, ensuring that the two channels work independently as needed and avoiding mutual interference. It is widely used in hydraulic equipment that requires bidirectional fluid replenishment.

[0003] Regarding patents related to filling valves, a search revealed Chinese patent CN206958013U, which discloses a filling valve with a safety valve. The patent includes a control valve assembly mounted on the lower left of the right side and the lower left of the left side of the filling valve body. A check valve assembly is mounted on the lower right of the right side of the filling valve body. A main valve core assembly is mounted on the upper right of the right side and the upper left of the filling valve body. A safety valve is mounted on the right side of the left side of the filling valve body and includes a steel ball, spring, spring seat, plug, and O-ring. The safety valve is built into the filling valve. The overall dimensions of the filling valve remain unchanged.

[0004] Although the above-mentioned device integrates a filling valve and a safety valve, making it safe and reliable, reducing connecting pipes and lowering the installation cost for OEMs, in actual use, the filling valve cannot pre-limit or buffer the instantaneous large flow rate at the oil inlet when controlling the oil flow. The high pressure and high flow rate directly impact the core components such as the valve core and seals inside the filling valve, increasing wear and fatigue and reducing the service life of the valve components. Utility Model Content

[0005] The purpose of this invention is to provide a dual-channel filling valve flow synchronous adjustment device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, a dual-channel filling valve flow synchronization regulating device is provided, comprising a filling valve body, an oil passage seat fixedly installed on the top of the filling valve body, a main oil inlet pipe installed on the side wall of the filling valve body, a flow synchronization regulating device body installed at the end of the main oil inlet pipe, the flow synchronization regulating device body including a throttling pipe fixedly connected to the main oil inlet pipe, a throttling baffle inserted inside the throttling pipe, a screw installed on the upper side of the throttling baffle, a drive motor fixedly installed on the top of the screw, and the output shaft of the drive motor fixedly connected to the screw.

[0007] Furthermore, the main body of the flow synchronization adjustment device also includes a fixed flange, a positioning seat, a sealing cylinder, a sealing frame and a limiting column, and a positioning seat is fixedly installed at the bottom of the intercepting pipe. The positioning seat has a positioning groove inside, and the cross-section of the positioning groove is an isosceles trapezoid.

[0008] Furthermore, a positioning post is fixedly provided at the bottom of the intercepting column. The positioning post has an isosceles trapezoidal cross section, and the size of the positioning post is adapted to the positioning groove. The bottom of the positioning post is inserted into the inside of the positioning groove.

[0009] Furthermore, a sealing cylinder is fixedly installed on the top side wall of the intercepting pipe, an intercepting baffle is inserted inside the sealing cylinder, a sealing gasket is fixedly installed on the outside of the intercepting baffle, and the intercepting baffle is movably inserted inside the sealing cylinder and sealed by the sealing gasket.

[0010] Furthermore, both ends of the throttling pipe are fixedly provided with fixed flanges. One end of the throttling pipe is fixedly connected to the main oil inlet pipe through the fixed flange, and the other end of the throttling pipe is fixedly connected to the hydraulic station oil inlet pipe through the fixed flange.

[0011] Furthermore, a sealing frame is fixedly installed on the top of the sealing cylinder, a limiting post is fixedly installed inside the sealing frame, and a screw is movably installed inside the sealing frame. The screw is screwed into the inside of the flow-blocking post, the limiting post is inserted into the limiting hole opened inside the limiting seat, and the end of the limiting seat is fixedly connected to the outer ring surface of the flow-blocking post.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by adjusting the height of the baffle column inside the baffle pipe, the baffle area inside the baffle pipe can be adjusted, thereby buffering the oil that is about to enter the main body of the filling valve. This can limit or buffer the instantaneous large flow rate at the oil inlet, such as the flow peak during system startup or sudden load changes, and prevent high pressure and large flow from directly impacting the core components such as the valve core and seals inside the filling valve, reducing wear and fatigue, and extending the service life of the valve components. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 Side view;

[0015] Figure 3 This is a schematic diagram of the main structure of the flow synchronization regulating device of this utility model;

[0016] Figure 4 for Figure 3 Rear view;

[0017] Figure 5 for Figure 3 Side view;

[0018] The following are the labels in the diagram: 1. Filling valve body; 2. Oil circuit seat; 3. Main oil inlet pipe; 4. Flow synchronization regulating device body; 40. Cut-off pipe; 41. Fixed flange; 42. Positioning seat; 421. Positioning groove; 43. Cut-off baffle; 431. Positioning column; 432. Sealing gasket; 433. Limiting seat; 44. Sealing cylinder; 45. Sealing frame; 46. Limiting column; 47. Screw; 48. Drive motor. Detailed Implementation

[0019] Please see Figure 1-5 This utility model provides a dual-channel filling valve flow synchronization adjustment device, including a filling valve body 1, an oil passage seat 2 fixedly installed on the top of the filling valve body 1, a main oil inlet pipe 3 installed on the side wall of the filling valve body 1, a flow synchronization adjustment device body 4 installed at the end of the main oil inlet pipe 3, the flow synchronization adjustment device body 4 including a throttling pipe 40 fixedly connected to the main oil inlet pipe 3, a throttling baffle 43 inserted inside the throttling pipe 40, a screw 47 installed on the upper side of the throttling baffle 43, a drive motor 48 fixedly installed on the top of the screw 47, and the output shaft of the drive motor 48 fixedly connected to the screw 47.

[0020] Working principle: When in use, the flow synchronization regulating device body 4 is installed on the main oil inlet pipe 3 at the end of the filling valve body 1. The flow synchronization regulating device body 4 has a flow-blocking baffle 43 that can be raised and lowered inside. By adjusting the height of the flow-blocking baffle 43 inside the flow-blocking pipe 40, the flow-blocking area inside the flow-blocking pipe 40 is adjusted, thereby buffering the oil that is about to enter the filling valve body 1. It can pre-limit or buffer the instantaneous large flow at the oil inlet, such as the flow peak during system startup or load change, to avoid high pressure and large flow directly impacting the valve core, seals and other core components inside the filling valve, reducing wear and fatigue, and extending the service life of the valve components.

[0021] As a preferred embodiment, the main body 4 of the flow synchronization regulating device also includes a fixed flange 41, a positioning seat 42, a sealing cylinder 44, a sealing frame 45 and a limiting post 46, and the bottom of the intercepting pipe 40 is fixedly provided with a positioning seat 42, and the positioning seat 42 has a positioning groove 421 inside, and the cross section of the positioning groove 421 is an isosceles trapezoid.

[0022] A positioning post 431 is fixedly installed at the bottom of the flow-blocking column 43. The cross-section of the positioning post 431 is an isosceles trapezoid. The size of the positioning post 431 is adapted to the positioning groove 421. The bottom of the positioning post 431 is inserted into the inside of the positioning groove 421.

[0023] A sealing cylinder 44 is fixedly installed on the top side wall of the intercepting pipe 40. A flow-blocking column 43 is inserted inside the sealing cylinder 44. A sealing gasket 432 is fixedly installed on the outside of the flow-blocking column 43. The flow-blocking column 43 is movably inserted inside the sealing cylinder 44 and is sealed by the sealing gasket 432.

[0024] like Figure 1 and Figure 3-5 As shown: The adjustable baffle 43 inside the main body 4 of the flow synchronization regulating device can flexibly change the interception area inside the interception pipe 40 by adjusting its height. This effectively buffers the oil about to enter the main body 1 of the filling valve, allowing the oil to enter in a more stable state and avoiding violent fluctuations in oil flow. Secondly, it effectively copes with flow shocks under special working conditions. During system startup, sudden load changes, and other situations, there are often instantaneous large flow peaks. This device can limit or buffer such peaks at the oil inlet in advance. This avoids high pressure and high flow directly impacting the valve core, seals, and other core components inside the filling valve, reducing wear and fatigue caused by impact from the source. Finally, it significantly extends the service life of the valve components. Due to the reduction of wear and fatigue of core components, the overall durability of the filling valve is greatly improved, thereby extending the service life of the valve components, reducing the frequency and cost of maintenance and replacement due to component damage, and improving the stability and economy of the entire system operation.

[0025] As a preferred embodiment, both ends of the throttling pipe 40 are fixedly provided with fixed flanges 41. One end of the throttling pipe 40 is fixedly connected to the main oil inlet pipe 3 through the fixed flange 41, and the other end of the throttling pipe 40 is fixedly connected to the hydraulic station oil inlet pipe through the fixed flange 41.

[0026] A sealing frame 45 is fixedly installed on the top of the sealing cylinder 44. A limiting post 46 is fixedly installed inside the sealing frame 45. At the same time, a screw 47 is movably installed inside the sealing frame 45. The screw 47 is screwed into the inside of the flow-blocking column 43. The limiting post 46 is inserted into the limiting hole opened inside the limiting seat 433. The end of the limiting seat 433 is fixedly connected to the outer ring surface of the flow-blocking column 43.

[0027] like Figure 3-5As shown: The lifting and lowering mechanism of the flow-blocking column 43 inside the flow-blocking pipe 40 is as follows: Activating the external switch of the drive motor 48 causes the output shaft of the drive motor 48 to drive the screw 47 to rotate slowly. The screw 47 is screwed into the inside of the flow-blocking column 43, allowing the flow-blocking column 43 to move vertically, changing its insertion height inside the flow-blocking pipe 40, thus achieving flow obstruction and deceleration. The output shaft of the drive motor 48 drives the screw 47 to rotate slowly, and the screw 47, screwed into the flow-blocking column 43, converts the rotational motion of the motor into the vertical movement of the flow-blocking column 43. Compared to manual adjustment or other transmission methods, this method allows for more precise control of the insertion height of the flow-blocking column 43 inside the flow-blocking pipe 40, thereby changing the flow-blocking area of ​​the flow-blocking pipe 40, ensuring the flow obstruction and deceleration effect meets expectations, and avoiding flow instability caused by adjustment errors. Firstly, it is easy to operate and control; the entire adjustment process can be achieved simply by operating the external switch of the drive motor 48, without the need for complex manual operation, reducing the difficulty and intensity of manual intervention; at the same time, the drive motor 48 can rotate slowly, making the movement of the flow-blocking column 43 smooth and controllable, and can gradually adjust the flow obstruction degree of the flow-blocking pipe 40 according to actual needs, avoiding additional impact on the system due to excessive adjustment speed; secondly, it has strong adaptability and high reliability; this drive method is compatible with the structural design of the flow-blocking column 43 and the flow-blocking pipe 40, and can stably realize the flow obstruction and deceleration of the flow-blocking pipe 40; whether it is fine-tuning during stable system operation or timely adjustment in response to changes in operating conditions, it can reliably play a role, ensuring the continuous and stable operation of the entire flow regulation system, and further enhancing the practical value of the flow synchronization regulation device body 4.

Claims

1. A dual-channel filling valve flow synchronization regulating device, comprising a filling valve body (1), characterized in that: An oil passage seat (2) is fixedly installed on the top of the filling valve body (1). A main oil inlet pipe (3) is installed on the side wall of the filling valve body (1). A flow synchronization regulating device body (4) is installed at the end of the main oil inlet pipe (3). The flow synchronization regulating device body (4) includes a choke pipe (40) fixedly connected to the main oil inlet pipe (3). A choke baffle (43) is inserted inside the choke pipe (40). A screw (47) is installed on the upper side of the choke baffle (43). A drive motor (48) is fixedly installed on the top of the screw (47). The output shaft of the drive motor (48) is fixedly connected to the screw (47).

2. The dual-channel filling valve flow synchronous adjustment device according to claim 1, characterized in that: The main body (4) of the flow synchronization regulating device also includes a fixed flange (41), a positioning seat (42), a sealing cylinder (44), a sealing frame (45) and a limiting post (46), and the bottom of the intercepting pipe (40) is fixedly provided with a positioning seat (42), and the positioning seat (42) has a positioning groove (421) inside, and the cross section of the positioning groove (421) is an isosceles trapezoid.

3. The dual-channel filling valve flow synchronous adjustment device according to claim 2, characterized in that: The bottom of the flow-blocking column (43) is fixedly provided with a positioning column (431). The cross section of the positioning column (431) is an isosceles trapezoid. The size of the positioning column (431) is adapted to the positioning groove (421). The bottom of the positioning column (431) is inserted into the inside of the positioning groove (421).

4. The dual-channel filling valve flow synchronous adjustment device according to claim 3, characterized in that: A sealing cylinder (44) is fixedly installed on the top side wall of the intercepting pipe (40), and an intercepting baffle (43) is inserted inside the sealing cylinder (44).

5. The dual-channel filling valve flow synchronous adjustment device according to claim 4, characterized in that: Both ends of the cut-off pipe (40) are fixedly provided with fixed flanges (41). One end of the cut-off pipe (40) is fixedly connected to the main oil inlet pipe (3) through the fixed flange (41), and the other end of the cut-off pipe (40) is fixedly connected to the hydraulic station oil inlet pipe through the fixed flange (41).

6. The dual-channel filling valve flow synchronous adjustment device according to claim 5, characterized in that: A sealing frame (45) is fixedly installed on the top of the sealing cylinder (44), a limit post (46) is fixedly installed inside the sealing frame (45), and a screw (47) is movably installed inside the sealing frame (45).

7. The dual-channel filling valve flow synchronous adjustment device according to claim 4, characterized in that: A sealing gasket (432) is fixedly provided on the outside of the flow-blocking column (43), and the flow-blocking column (43) is movably inserted into the inside of the sealing cylinder (44) and sealed by the sealing gasket (432).

8. The dual-channel filling valve flow synchronous adjustment device according to claim 6, characterized in that: The screw (47) is screwed into the inside of the flow-blocking column (43), the limiting column (46) is inserted into the limiting hole opened inside the limiting seat (433), and the end of the limiting seat (433) is fixedly connected to the outer ring surface of the flow-blocking column (43).

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