Hydraulic synchronous valve with pressure compensation mechanism
By setting the piston and pressure adjustment mechanism from the top of the control valve of the hydraulic synchronous valve, the problem of instability of the internal pressure of the existing hydraulic synchronous valve is solved, and more stable pressure distribution is achieved, improving the working efficiency and accuracy of the mechanical equipment.
Patent Information
- Application Number
- CN202421329473.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-12
AI Technical Summary
In actual use, the existing hydraulic synchronous valves are not stable enough due to the instability of internal pressure, which affects the synchronous movement of multiple hydraulic actuators and reduces the working efficiency and accuracy of mechanical equipment.
A hydraulic synchronous valve with a pressure compensation mechanism is designed. By vertically connecting the piston at the top of the slave control valve and setting a pressure adjustment mechanism inside the piston, the pressure adjustment mechanism is realized to ensure more stable pressure.
Through the piston setting and the design of the pressure adjustment mechanism, the pressure from the inside of the control valve can be adjusted during use, thereby improving the pressure stability, thereby improving the use effect of the hydraulic synchronous valve and the working accuracy of the mechanical equipment.
Smart Images
Figure CN222668532U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic synchronous valves, in particular to a hydraulic synchronous valve with a pressure compensation mechanism. Background Art
[0002] A hydraulic synchronizing valve is a device used to control the simultaneous movement of multiple hydraulic actuators in a hydraulic system. The hydraulic synchronizing valve is usually composed of a main control valve and multiple slave control valves. The main control valve controls the flow distribution of the main pump and distributes the hydraulic oil to each slave control valve in a certain proportion, thereby achieving the synchronous movement of multiple actuators. The hydraulic synchronizing valve is widely used in occasions where multiple hydraulic actuators need to move synchronously, such as cranes, excavators, punching machines and other mechanical equipment. By using the hydraulic synchronizing valve, the working efficiency and precision of the mechanical equipment can be improved, energy consumption can be reduced, and production efficiency can be improved.
[0003] However, in actual use, some existing hydraulic synchronous valves will have changes in the flow distribution process due to the unstable internal pressure. When multiple hydraulic actuators move synchronously, they are not stable enough, which reduces the actual use effect. In addition, in some lower or higher flow distribution processes, proper compensation cannot be obtained, which affects the working accuracy of the mechanical equipment. Therefore, it is urgent to solve the above problems. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a hydraulic synchronous valve with a pressure compensation mechanism.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A hydraulic synchronous valve with a pressure compensation mechanism comprises a main control valve, a slave control valve is arranged on the top of the main control valve, a connecting mechanism for connecting the slave control valve is arranged on the top of the main control valve, two fixed pipes are fixedly connected to the surface of the slave control valve, the two fixed pipes are arranged horizontally, the two fixed pipes are connected to the inside of the slave control valve at one end close to each other, and the two fixed pipes are installed with pipe connectors at one end away from each other, a piston is vertically fixedly connected to the top of the slave control valve, and a pressure regulating mechanism is arranged inside the piston. Through the arrangement of the piston, the pressure inside the slave control valve can be adjusted during use, so that the pressure inside the slave control valve is more stable, thereby improving the use effect of the device.
[0007] Preferably, the connecting mechanism includes a connecting box, support blocks are fixedly connected to both sides symmetrically of the surface of the main control valve, mounting plates are installed at both ends of the surface of the main control valve, the connecting box is fixedly connected to the top of the main control valve, a connecting port is provided at the top of the connecting box, and fixing plates are fixedly connected to both sides symmetrically of the surface of the slave control valve, the two fixing plates are horizontally arranged, screws are installed inside the two fixing plates, and the two fixing plates are fixedly connected to the top of the connecting box by screws, which is used to make the fixation between the main control valve and the slave control valve more stable and also facilitates the maintenance of the device.
[0008] Further, the pressure regulating mechanism includes a piston, a connecting cylinder is vertically fixedly connected to the top of the slave control valve, the connecting cylinder is communicated with the interior of the slave control valve, a support ring is sleeved on the bottom of the connecting cylinder, the piston is sleeved inside the connecting cylinder, the piston slides vertically inside the connecting cylinder, the piston is arranged on the top of the support ring, a sliding mechanism for sliding the piston is arranged inside the connecting cylinder, the sliding mechanism includes a lifting plate, two sliding grooves are vertically fixedly connected to the inner wall of the connecting cylinder, the lifting plate slides vertically inside the main control valve, two sliding blocks are fixedly connected to the surface of the lifting plate, the two sliding blocks slide respectively inside the two sliding grooves, a spring is arranged at the bottom of the lifting plate, the spring is arranged on the top of the piston, a screw rod is vertically sleeved inside the connecting cylinder, a sealing sleeve is fixedly connected at the center of the top of the connecting cylinder, the screw rod is sleeved inside the sealing sleeve, the screw rod is sleeved at the center of the lifting plate, the lifting plate cooperates with the screw rod, a rotating wheel is rotatably connected to the top of the connecting cylinder, and the rotating wheel is fixedly connected to the top of the screw rod, which is used to limit the piston from sliding up and down, thereby controlling the pressure inside the slave control valve.
[0009] The beneficial effects of the utility model are:
[0010] 1. Through the setting of the piston, the pressure inside the slave control valve can be adjusted during use, so that the pressure inside the slave control valve is more stable, thereby improving the use effect of the device.
[0011] 2. When in use, the wheel can be manually rotated to drive the screw to rotate, so that the lifting plate can slide up and down, so that the elasticity between the piston and the lifting plate can be adjusted, and the pressure change range inside the control valve can also be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a front view of a hydraulic synchronous valve with a pressure compensation mechanism proposed by the utility model;
[0013] Figure 2 This is a surface structure exploded view of a hydraulic synchronous valve with a pressure compensation mechanism proposed by the utility model;
[0014] Figure 3 This is a partial structural cross-sectional view of a hydraulic synchronous valve with a pressure compensation mechanism proposed by the utility model;
[0015] Figure 4 The utility model is a partial structural cross-sectional view of a hydraulic synchronous valve with a pressure compensation mechanism.
[0016] In the figure: 1. main control valve; 11. support block; 12. mounting plate; 13. connection box; 14. connection port; 2. slave control valve; 21. fixing plate; 22. fixing pipe; 23. pipe connector; 3. connecting cylinder; 31. sealing sleeve; 32. slide groove; 33. support ring; 4. piston; 41. sealing ring; 42. spring; 5. lifting plate; 51. slider; 52. screw rod; 53. rotating wheel. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0018] Reference Figure 1-Figure 4 A hydraulic synchronous valve with a pressure compensation mechanism comprises a main control valve 1, a slave control valve 2 is arranged on the top of the main control valve 1, a connecting mechanism for connecting the slave control valve 2 is arranged on the top of the main control valve 1, two fixed pipes 22 are fixedly connected to the surface of the slave control valve 2, the two fixed pipes 22 are arranged horizontally, the two fixed pipes 22 are connected to the inside of the slave control valve 2 at one end close to each other, and the two fixed pipes 22 are installed with pipe connectors 23 at one end away from each other, a piston 4 is vertically fixedly connected to the top of the slave control valve 2, and a pressure regulating mechanism is arranged inside the piston 4. Through the arrangement of the piston 4, the pressure inside the slave control valve 2 can be adjusted during use, so that the pressure inside the slave control valve 2 is more stable, thereby improving the use effect of the device.
[0019] Reference Figure 1 and Figure 2 In a preferred embodiment, the connecting mechanism includes a connecting box 13, support blocks 11 are fixedly connected on both sides of the surface of the main control valve 1 symmetrically, mounting plates 12 are installed at both ends of the surface of the main control valve 1, the connecting box 13 is fixedly connected to the top of the main control valve 1, and a connecting port 14 is provided on the top of the connecting box 13, and fixing plates 21 are fixedly connected on both sides of the surface of the slave control valve 2 symmetrically, the two fixing plates 21 are both horizontally arranged, screws are installed inside the two fixing plates 21, and the two fixing plates 21 are fixedly connected to the top of the connecting box 13 through screws, which is used to make the fixation between the main control valve 1 and the slave control valve 2 more stable, and it will also facilitate the maintenance of the device.
[0020] Reference Figure 3 and Figure 4 In a preferred embodiment, the pressure regulating mechanism includes a piston 4, a connecting cylinder 3 is vertically fixedly connected to the top of the slave control valve 2, the connecting cylinder 3 is connected to the inside of the slave control valve 2, a support ring 33 is sleeved on the bottom of the connecting cylinder 3, the piston 4 is sleeved inside the connecting cylinder 3, the piston 4 slides vertically inside the connecting cylinder 3, the piston 4 is arranged on the top of the support ring 33, and a sliding mechanism for sliding the piston 4 is provided inside the connecting cylinder 3. The sliding mechanism includes a lifting plate 5, two sliding grooves 32 are vertically fixedly connected to the inner wall of the connecting cylinder 3, the lifting plate 5 slides vertically inside the main control valve 1, and the surface of the lifting plate 5 is fixedly connected to A slider 51 is provided, and the two sliders 51 slide in the two slide grooves 32 respectively. A spring 42 is provided at the bottom of the lifting plate 5, and the spring 42 is provided at the top of the piston 4. A screw rod 52 is vertically sleeved inside the connecting tube 3. A sealing sleeve 31 is fixedly connected at the top center of the connecting tube 3. The screw rod 52 is sleeved inside the sealing sleeve 31. The screw rod 52 is sleeved at the center of the lifting plate 5. The lifting plate 5 cooperates with the screw rod 52. A rotating wheel 53 is rotatably connected to the top of the connecting tube 3. The rotating wheel 53 is fixedly connected to the top of the screw rod 52, and is used to limit the piston 4 from sliding up and down, thereby controlling the pressure inside the control valve 2.
[0021] From the above description, it can be seen that the above-mentioned embodiment of the utility model achieves the following technical effects: in actual use, through the setting of the piston 4, the pressure inside the slave control valve 2 can be adjusted during use, so that the pressure inside the slave control valve 2 is more stable, thereby improving the use effect of the device, and the flow is delivered to the inside of the slave control valve 2 through the main control valve 1, and then the hydraulic oil is distributed to the slave control valve 2 according to a certain proportion, so as to realize the synchronous movement of multiple actuators. At the same time, when the pressure inside the slave control valve 2 is changed, the slave control valve 2 and the connecting cylinder 3 are connected, and the piston 4 can be slid up and down, so that the pressure inside the slave control valve 2 can be controlled, and the pressure inside the slave control valve 2 will be more stable. When the pressure inside the slave control valve 2 is low, the piston 4 can be slid downward by the spring 42, so that the pressure inside the slave control valve 2 can be compensated. At the same time, the rotating wheel 53 can be manually rotated to drive the screw rod 52 to rotate, so that the lifting plate 5 slides up and down, so that the elasticity between the piston 4 and the lifting plate 5 is adjusted, and the pressure change range inside the slave control valve 2 is also adjusted.
[0022] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0025] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A hydraulic synchronous valve with a pressure compensation mechanism, comprising a main control valve (1), characterized in that: A slave control valve (2) is arranged on the top of the main control valve (1), and a connecting mechanism for connecting the slave control valve (2) is arranged on the top of the main control valve (1). Two fixed pipes (22) are fixedly connected to the surface of the slave control valve (2), and the two fixed pipes (22) are arranged horizontally. The two fixed pipes (22) are connected to the interior of the slave control valve (2) at one end close to each other, and are installed with a pipe connector (23) at one end away from each other. A piston (4) is vertically fixedly connected to the top of the slave control valve (2), and a pressure regulating mechanism is arranged inside the piston (4).
2. A hydraulic synchronous valve with a pressure compensation mechanism according to claim 1, characterized in that: The connection mechanism comprises a connection box (13), support blocks (11) are fixedly connected to both symmetrical sides of the surface of the main control valve (1), mounting plates (12) are installed at both ends of the surface of the main control valve (1), the connection box (13) is fixedly connected to the top of the main control valve (1), and a connection port (14) is provided at the top of the connection box (13).
3. A hydraulic synchronous valve with a pressure compensation mechanism according to claim 2, characterized in that: The slave control valve (2) is fixedly connected with fixing plates (21) on both symmetrical sides of the surface, the two fixing plates (21) are arranged horizontally, screws are installed inside the two fixing plates (21), and the two fixing plates (21) are fixedly connected to the top of the connection box (13) through screws.
4. A hydraulic synchronous valve with a pressure compensation mechanism according to claim 1, characterized in that: The pressure regulating mechanism comprises a piston (4), a connecting cylinder (3) is vertically fixedly connected to the top of the slave control valve (2), the connecting cylinder (3) is communicated with the inside of the slave control valve (2), a supporting ring (33) is sleeved on the bottom of the connecting cylinder (3), the piston (4) is sleeved inside the connecting cylinder (3), the piston (4) vertically slides inside the connecting cylinder (3), the piston (4) is arranged on the top of the supporting ring (33), and a sliding mechanism for sliding the piston (4) is provided inside the connecting cylinder (3).
5. A hydraulic synchronous valve with a pressure compensation mechanism according to claim 4, characterized in that: The sliding mechanism comprises a lifting plate (5), the inner wall of the connecting tube (3) is vertically fixedly connected to two slide grooves (32), the lifting plate (5) slides vertically inside the main control valve (1), the surface of the lifting plate (5) is fixedly connected to two sliders (51), the two sliders (51) slide inside the two slide grooves (32) respectively, and a spring (42) is arranged at the bottom of the lifting plate (5), and the spring (42) is arranged on the top of the piston (4).
6. A hydraulic synchronous valve with a pressure compensation mechanism according to claim 5, characterized in that: A screw rod (52) is vertically sleeved inside the connecting tube (3), a sealing sleeve (31) is fixedly connected to the center of the top of the connecting tube (3), the screw rod (52) is sleeved inside the sealing sleeve (31), the screw rod (52) is sleeved at the center of the lifting plate (5), the lifting plate (5) cooperates with the screw rod (52), and a rotating wheel (53) is rotatably connected to the top of the connecting tube (3), and the rotating wheel (53) is fixedly connected to the top of the screw rod (52).