A hydraulic valve block multi-path flow distribution device

Abstract

This utility model relates to the field of hydraulic valve block technology, and in particular to a multi-channel flow distribution device for a hydraulic valve block. It includes a hydraulic valve block body, with an oil inlet chamber mechanism at the top. An oil pressure regulating mechanism is installed inside the oil inlet chamber mechanism. An oil outlet channel is provided on the side of the hydraulic valve block body. The oil inlet chamber mechanism is connected to the oil outlet channel. The oil inlet chamber mechanism includes an oil inlet, an arc-shaped oil guide chamber, an oil outlet connecting chamber, and a positioning chamber. The oil inlet is located at the top of the hydraulic valve block body. A support positioning shaft is fixedly connected to the inner side of the arc-shaped oil guide chamber. The oil pressure regulating mechanism includes an adjusting core. This utility model effectively solves the problems of oil passage blockage and flow distribution in hydraulic valve blocks. It is easy to operate, saves manpower and time costs, avoids damage to the oil passages, extends the service life of the hydraulic valve block, and ensures the reliability of flow distribution and the stable operation of the hydraulic system.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic valve block technology, specifically a multi-channel flow distribution device for hydraulic valve blocks. Background Technology

[0002] The multi-channel flow distribution device of the pressure valve block is installed on the inlet of the hydraulic valve block. It can control the flow of each branch. With the hydraulic valve block body as the core structure, it realizes the rational distribution of multiple oil channels through specific internal cavities, channels and adjustment mechanisms to meet the flow and pressure requirements of different actuators (such as hydraulic cylinders, hydraulic motors, etc.) in the hydraulic system.

[0003] In hydraulic systems, multi-channel flow distribution devices play a crucial role, and their performance directly affects the system's operating efficiency and stability. Currently, traditional hydraulic valve block flow distribution devices have certain limitations. During the production, transportation, and storage of hydraulic oil used in hydraulic systems, impurities such as metal particles, dust, and fibers may be mixed in. During long-term use, due to the unevenness of the oil passages, impurities tend to accumulate, leading to uneven flow distribution.

[0004] To solve the problem of oil passage blockage, the existing technology often uses a periodic high-pressure flushing method by using an impact gun to penetrate the oil passage. However, this method has obvious drawbacks. Not only is the operation time-consuming and labor-intensive, requiring a lot of manpower and time costs, but the impact gun can also easily damage the oil passage when it collides with it, shortening the service life of the hydraulic valve block and increasing the equipment maintenance and replacement costs. Therefore, a multi-channel flow distribution device for hydraulic valve blocks is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a multi-channel flow distribution device for hydraulic valve blocks to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-channel flow distribution device for a hydraulic valve block includes a hydraulic valve block body. The top of the hydraulic valve block body has an oil inlet chamber mechanism, and an oil pressure regulating mechanism is installed inside the oil inlet chamber mechanism. An oil outlet channel is formed on the side of the hydraulic valve block body, and the oil inlet chamber mechanism is connected to the oil outlet channel. The oil inlet chamber mechanism includes an oil inlet, an arc-shaped oil guide chamber, an oil outlet connecting chamber, and a positioning chamber. The oil inlet is located at the top of the hydraulic valve block body, and a supporting positioning shaft is fixedly connected to the inner side of the arc-shaped oil guide chamber. The oil pressure regulating mechanism includes an adjusting core, a main oil passage and a trapezoidal adjusting groove formed in the middle of the adjusting core. Matching grooves are formed on both sides of the outer wall of the main oil passage. Positioning discs are fixedly connected to both ends of the main oil passage. Bi-directional ratchet wheels are fixedly connected to both sides of the positioning discs. A claw plate is installed above the bi-directional ratchet wheels, and a transmission block is fixedly connected to the top of the claw plate. The supporting positioning shaft is rotatably connected to the matching groove, and the positioning disc is rotatably connected to the positioning chamber.

[0008] As a further optimization of this utility model, the arc-shaped oil guide cavity is located below the oil inlet, the arc-shaped oil guide cavity is connected to the oil inlet, the inner side of the arc-shaped oil guide cavity has an arc-shaped structure, and the arc-shaped oil guide cavity is in close contact with the adjusting core.

[0009] As a further optimization of this utility model, the oil outlet connecting cavity is located below the arc-shaped oil guide cavity, the arc-shaped oil guide cavity is connected to the oil outlet side channel through the oil outlet connecting cavity, and the positioning cavity is located on the side of the arc-shaped oil guide cavity.

[0010] As a further optimization of this utility model, an adjusting ring is spirally connected to the bottom of the inner side of the oil inlet, and the center of the adjusting ring and the center of the oil inlet are located on the same central axis.

[0011] As a further optimization of this utility model, the main oil passage is located above the oil outlet connecting cavity, the trapezoidal adjusting groove is located on one side of the main oil passage, and guide blocks are fixedly connected to both sides of the inner wall of the trapezoidal adjusting groove.

[0012] As a further optimization of this utility model, the positioning disk is located inside the positioning cavity, and the two bidirectional ratchet wheels are symmetrically distributed on the left and right sides with the positioning disk as the center, and the bidirectional ratchet wheels are engaged with the claw plate.

[0013] As a further optimization of this utility model, the following features are provided: the claw plate is located at the top of the inner side of the positioning cavity, there is a gap between the claw plate and the positioning cavity, the transmission block is slidably connected to the positioning cavity, the transmission block is located below the adjusting ring, the inner wall of the positioning cavity is fixedly connected to a limit rod, the number of limit rods corresponds one-to-one with the number of claw plates, there is a gap between the limit rod and the bidirectional ratchet, the limit rod and the claw plate are rotatably engaged, and a limit groove is provided on the side of the claw plate near the limit rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the problems of oil passage blockage and flow distribution in hydraulic valve blocks are effectively solved by the setting of components such as the oil inlet chamber mechanism and the oil pressure adjustment mechanism. The arc-shaped oil guide chamber of the oil inlet chamber mechanism fits with the adjustment core, providing a stable rotation fulcrum for the adjustment core. The adjustment core of the oil pressure adjustment mechanism can rotate, and its trapezoidal adjustment groove cooperates with the guide inclined block to tilt the oil delivery and flush the inner wall of the oil outlet cavity at an angle, reducing the adhesion of impurities. By rotating the adjustment ring, the claw plate can be controlled to limit the bidirectional ratchet, realizing the free rotation and fixation of the adjustment core. Compared with the existing impact gun flushing method, this device is easy to operate, saves manpower and time costs, avoids damage to the oil passage, extends the service life of the hydraulic valve block, and ensures the reliability of flow distribution and the stable operation of the hydraulic system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the oil inlet chamber mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the oil inlet chamber mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the hydraulic pressure regulating mechanism of this utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of the adjusting core of this utility model;

[0021] Figure 6 This utility model Figure 4 A schematic diagram of the structure at point A.

[0022] In the diagram: 1. Hydraulic valve block body;

[0023] 2. Oil inlet mechanism; 21. Oil inlet; 22. Arc-shaped oil guide cavity; 23. Oil outlet connecting cavity; 24. Support positioning shaft; 25. Positioning cavity;

[0024] 3. Hydraulic pressure regulating mechanism; 31. Adjusting core; 32. Main oil passage; 33. Trapezoidal adjusting groove; 34. Mating groove; 35. Positioning plate; 36. Two-way ratchet; 37. Claw plate; 38. Transmission block; 39. Limit rod;

[0025] 4. Oil outlet channel; 5. Guide block; 6. Adjusting ring; 7. Limiting groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Please see Figures 1-6 This utility model provides a technical solution:

[0029] A multi-channel flow distribution device for a hydraulic valve block includes a hydraulic valve block body 1. An oil inlet mechanism 2 is formed at the top of the hydraulic valve block body 1, and an oil pressure regulating mechanism 3 is installed inside the oil inlet mechanism 2. An oil outlet channel 4 is formed on the side of the hydraulic valve block body 1, and the oil inlet mechanism 2 is connected to the oil outlet channel 4. The oil inlet mechanism 2 includes an oil inlet 21, an arc-shaped oil guide cavity 22, an oil outlet connecting cavity 23, and a positioning cavity 25. The oil inlet 21 is located at the top of the hydraulic valve block body 1, and a support is fixedly connected to the inner side of the arc-shaped oil guide cavity 22. Positioning shaft 24; hydraulic pressure regulating mechanism 3 includes regulating core 31, the regulating core 31 has a main oil passage 32 and a trapezoidal regulating groove 33 in the middle, the main oil passage 32 has mating grooves 34 on both sides of the outer wall, the main oil passage 32 is fixedly connected to both ends of the main oil passage 32, the positioning disk 35 is fixedly connected to both sides of the positioning disk 35, the double ratchet 36 is fixedly connected to both sides of the double ratchet 36, the claw plate 37 is installed above the double ratchet 36, and the top of the claw plate 37 is fixedly connected to the transmission block 38; the supporting positioning shaft 24 is rotatably connected to the mating groove 34, and the positioning disk 35 is rotatably connected to the positioning cavity 25.

[0030] As a further implementation of this scheme, the arc-shaped oil guide cavity 22 is located below the oil inlet 21 and is connected to the oil inlet 21. The inner side of the arc-shaped oil guide cavity 22 has an arc-shaped structure. The arc-shaped oil guide cavity 22 and the adjusting core 31 fit together. The oil outlet connecting cavity 23 is located below the arc-shaped oil guide cavity 22 and is connected to the oil outlet side channel 4 through the oil outlet connecting cavity 23. The positioning cavity 25 is located on the side of the arc-shaped oil guide cavity 22. This setting provides a rotation fulcrum for the adjusting core 31 and ensures its stability during rotation.

[0031] As a further implementation of this solution, an adjusting ring 6 is spirally connected to the bottom of the inner side of the oil inlet 21. The center of the adjusting ring 6 and the center of the oil inlet 21 are on the same central axis. The claw plate 37 is located at the top of the inner side of the positioning cavity 25. There is a gap between the claw plate 37 and the positioning cavity 25. The transmission block 38 is slidably connected to the positioning cavity 25. The transmission block 38 is located below the adjusting ring 6. With this configuration, when the adjusting ring 6 moves down, it squeezes the transmission block 38 to move down, driving the top claw plate 37 to move down synchronously. The claw plate 37 is located at the top of the positioning cavity 25. When it moves down, it is squeezed outward by the limiting rod 39, releasing the locking limit of the bidirectional ratchet 36.

[0032] As a further implementation of this scheme, the main oil passage 32 is located above the oil outlet connecting cavity 23, and the trapezoidal adjusting groove 33 is located on one side of the main oil passage 32. Guide inclined blocks 5 are fixedly connected to both sides of the inner wall of the trapezoidal adjusting groove 33. The guide inclined blocks 5 guide the oil to obliquely flush the inner wall of the oil outlet connecting cavity 23 and wash away impurities.

[0033] As a further implementation of this solution, the positioning disk 35 is located inside the positioning cavity 25, and two bidirectional ratchet wheels 36 are symmetrically distributed on the left and right sides with the positioning disk 35 as the center. The bidirectional ratchet wheels 36 are engaged with the claw plate 37 to limit the rotation of the positioning disk 35, thereby fixing the position of the adjusting core 31.

[0034] As a further implementation of this solution, the inner wall of the positioning cavity 25 is fixedly connected with a limiting rod 39. The number of limiting rods 39 corresponds one-to-one with the number of claw plates 37. There is a gap between the limiting rod 39 and the bidirectional ratchet 36. The limiting rod 39 and the claw plate 37 are rotatably engaged. A limiting groove 7 is opened on the side of the claw plate 37 near the limiting rod 39. The limiting groove 7 provides a fulcrum for the rotation of the claw plate 37 to avoid misalignment.

[0035] Working process: When the device is not being adjusted, the claw plate 37 limits the bidirectional ratchet 36, preventing the adjusting core 31 from rotating freely. At this time, the main oil passage 32 remains in normal condition. The oil enters the arc-shaped oil guide chamber 22 from the oil inlet 21, flows out through the oil outlet connecting chamber 23 and the oil outlet side channel 4, and performs basic flow distribution. However, due to the possible accumulation of impurities in the oil passage, uneven distribution may occur after long-term use.

[0036] When flushing the oil passage and optimizing the flow distribution are required, the operator first disassembles the pipe above the oil inlet 21 and rotates the adjusting ring 6 at the bottom inner side of the oil inlet 21. Since the adjusting ring 6 is spirally connected to the bottom inner side of the oil inlet 21 and their centers are on the same central axis, rotating the adjusting ring 6 will cause it to move downward. During the downward movement of the adjusting ring 6, it squeezes the transmission block 38 below. The transmission block 38 moves downward along the inner side of the positioning cavity 25, and at the same time drives the claw plate 37 to move downward synchronously. When the claw plate 37 moves downward, it is squeezed and limited by the limiting rod 39. The claw plate 37, which was originally closed, opens outward and no longer limits the bidirectional ratchet 36, thus no longer restricting the positioning plate 35 and the adjusting core 31. At this time, the adjusting core 31 can rotate freely. When the operator rotates the adjusting core 31, the main oil passage 32 of the adjusting core 31 becomes the main channel for oil, and the trapezoidal adjusting groove 33 follows. The adjusting core 31 rotates, causing a change in its relative position with the oil outlet cavity 23. It gradually tilts, reducing the space between itself and the oil outlet cavity 23. This tilting change achieves a downward tilting oil delivery method, increasing the oil pressure when the oil passes through. At the same time, the guide block 5 on the inner wall of the trapezoidal adjusting groove 33 guides the oil, causing it to flush the inside of the oil outlet cavity 23 at an angle. This increases the impact of the oil pressure on the inside of the oil outlet cavity 23, reduces the adhesion and blockage of impurities inside, and ensures the reliability of the flow distribution effect. After the oil passage flushing and flow distribution optimization are completed, the adjusting ring 6 can be rotated in the opposite direction to move it upward. The transmission block 38 and the claw plate 37 gradually reset, and the claw plate 37 re-limits the bidirectional ratchet 36. The adjusting core 31 returns to a stable state, and the device can continue to distribute the flow according to the optimized state, or wait for the next adjustment to be needed and repeat the above process.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-channel flow distribution device for a hydraulic valve block, comprising a hydraulic valve block body (1), characterized in that: The top of the hydraulic valve block body (1) is provided with an oil inlet chamber mechanism (2), and an oil pressure regulating mechanism (3) is installed inside the oil inlet chamber mechanism (2). The side of the hydraulic valve block body (1) is provided with an oil outlet side channel (4), and the oil inlet chamber mechanism (2) is connected to the oil outlet side channel (4). The oil inlet mechanism (2) includes an oil inlet (21), an arc-shaped oil guide cavity (22), an oil outlet connecting cavity (23), and a positioning cavity (25). The oil inlet (21) is located at the top of the hydraulic valve block body (1), and a support positioning shaft (24) is fixedly connected to the inner side of the arc-shaped oil guide cavity (22). The hydraulic pressure regulating mechanism (3) includes an regulating core (31), a main oil passage (32) and a trapezoidal regulating groove (33) are provided in the middle of the regulating core (31), and mating grooves (34) are provided on both sides of the outer wall of the main oil passage (32). Positioning discs (35) are fixedly connected to both ends of the main oil passage (32), and bidirectional ratchet wheels (36) are fixedly connected to both sides of the positioning discs (35). A claw plate (37) is installed above the bidirectional ratchet wheel (36), and a transmission block (38) is fixedly connected to the top of the claw plate (37). The supporting positioning shaft (24) is rotatably connected to the mating groove (34), and the positioning disk (35) is rotatably connected to the positioning cavity (25).

2. The multi-channel flow distribution device for a hydraulic valve block according to claim 1, characterized in that: The arc-shaped oil guide cavity (22) is located below the oil inlet (21). The arc-shaped oil guide cavity (22) is connected to the oil inlet (21). The inner side of the arc-shaped oil guide cavity (22) has an arc-shaped structure. The arc-shaped oil guide cavity (22) is in close contact with the adjusting core (31).

3. The multi-channel flow distribution device for a hydraulic valve block according to claim 1, characterized in that: The oil outlet connecting cavity (23) is located below the arc-shaped oil guide cavity (22). The arc-shaped oil guide cavity (22) is connected to the oil outlet side channel (4) through the oil outlet connecting cavity (23). The positioning cavity (25) is located on the side of the arc-shaped oil guide cavity (22).

4. The multi-channel flow distribution device for a hydraulic valve block according to claim 1, characterized in that: An adjusting ring (6) is spirally connected to the bottom of the inner side of the oil inlet (21), and the center of the adjusting ring (6) and the center of the oil inlet (21) are located on the same central axis.

5. The multi-channel flow distribution device for a hydraulic valve block according to claim 1, characterized in that: The main oil passage (32) is located above the oil outlet connecting cavity (23), and the trapezoidal adjustment groove (33) is located on one side of the main oil passage (32). Guide inclined blocks (5) are fixedly connected to both sides of the inner wall of the trapezoidal adjustment groove (33).

6. The multi-channel flow distribution device for a hydraulic valve block according to claim 1, characterized in that: The positioning disk (35) is located inside the positioning cavity (25), and the two bidirectional ratchet wheels (36) are symmetrically distributed on the left and right sides with the positioning disk (35) as the center. The bidirectional ratchet wheels (36) are engaged with the claw plate (37).

7. The multi-channel flow distribution device for a hydraulic valve block according to claim 1, characterized in that: The claw plate (37) is located at the top inside the positioning cavity (25). There is a gap between the claw plate (37) and the positioning cavity (25). The transmission block (38) is slidably connected to the positioning cavity (25). The transmission block (38) is located below the adjusting ring (6). The inner wall of the positioning cavity (25) is fixedly connected to a limiting rod (39). The number of limiting rods (39) corresponds one-to-one with the number of claw plates (37). There is a gap between the limiting rod (39) and the bidirectional ratchet (36). The limiting rod (39) and the claw plate (37) are rotatably engaged. A limiting groove (7) is opened on the side of the claw plate (37) near the limiting rod (39).

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