Buffering reversing valve assembly

Abstract

The utility model discloses a buffering reversing valve assembly which comprises a controller, an oil cylinder and an integrated valve block with a valve cavity inside, and the integrated valve block is provided with a first oil supply connector and a second oil supply connector which are used for hydraulic oil to flow into the valve cavity from the oil cylinder. The integrated valve block is further provided with a plurality of oil return connectors for hydraulic oil to flow back to the oil cylinder from the valve cavity and a pressure relief connector communicated with an oil pressure energy relief device. The integrated valve block is provided with a first reversing electromagnetic valve capable of controlling the first oil supply connector to be connected and disconnected, a second reversing electromagnetic valve capable of controlling the second oil supply connector to be connected and disconnected and an unloading electromagnetic valve capable of controlling the pressure relief connector to be connected and disconnected. The first reversing electromagnetic valve, the second reversing electromagnetic valve and the unloading electromagnetic valve are in communication connection with the controller. The buffer reversing valve assembly is high in assembly integration degree, and the assembly structure layout of the buffer reversing valve assembly is more compact.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic pipeline supporting control valve technical field, especially in a kind of buffer reversing valve assembly. BACKGROUND

[0002] At present, the hydraulic station commonly seen in industry is generally composed of oil pump, driving motor, oil tank and some control valve components, and its working principle is generally as follows: the driving motor drives the oil pump to work to provide the pressure source required for hydraulic oil flow circulation operation, and the hydraulic oil is adjusted in flow direction, pressure and flow rate by the corresponding control of various control valves, and then transmitted to the oil cylinder or motor of hydraulic machinery through external oil pipe, so that the hydraulic machinery realizes various specified actions.

[0003] In the prior art, various control valves used in the hydraulic station often use some separately arranged hydraulic elements, such as hydraulic control check valve, pressure regulating valve, etc., and most of these control valves use plate type or stacked type arrangement structure. Therefore, during actual equipment assembly and operation, the overall equipment volume of the hydraulic system is too large, and the overall weight of the equipment is too heavy, which causes many inconveniences and difficulties in the daily use and maintenance of the hydraulic system.

[0004] Therefore, how to optimize the control valve assembly arrangement structure of the hydraulic system to make the equipment component integration higher and the assembly structure layout more compact is an important technical problem to be solved by those skilled in the art at present. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of buffer reversing valve assembly, and the component integration of the buffer reversing valve assembly is higher, and its assembly structure layout is more compact.

[0006] To solve the above technical problems, the utility model provides a kind of buffer reversing valve assembly, including controller, oil cylinder and integrated valve block with valve cavity inside, the integrated valve block is provided with first oil supply interface and second oil supply interface for the hydraulic oil from the oil cylinder into the valve cavity, the integrated valve block is also provided with a plurality of oil return interfaces for the hydraulic oil from the valve backflow to the oil cylinder and pressure relief interface communicated with oil pressure energy release device;

[0007] The integrated valve block is provided with first reversing electromagnetic valve capable of controlling the on-off of the first oil supply interface, second reversing electromagnetic valve capable of controlling the on-off of the second oil supply interface and unloading electromagnetic valve capable of controlling the on-off of the pressure relief interface, and the first reversing electromagnetic valve, the second reversing electromagnetic valve and the unloading electromagnetic valve are respectively communicated with the controller.

[0008] Preferably, two pressure transmitters are arranged on the integrated valve block and communicate with the first oil supply interface and the second oil supply interface respectively.

[0009] Preferably, two manual throttle valves are arranged on the integrated valve block and communicate with the first oil supply interface and the second oil supply interface respectively.

[0010] Preferably, a damping module is arranged on the integrated valve block and communicates with the valve cavity.

[0011] Preferably, the manual throttle valve is detachably inserted and arranged on the integrated valve block.

[0012] Preferably, the first reversing solenoid valve, the second reversing solenoid valve and the unloading solenoid valve are detachably inserted and arranged on the integrated valve block.

[0013] Preferably, the oil pressure energy releasing device comprises an accumulator and a pressure regulating valve, and the pressure regulating valve is in communication with the controller.

[0014] Preferably, the pressure regulating valve is detachably inserted and arranged on the integrated valve block.

[0015] Preferably, a hydraulic control check valve in communication with the controller is detachably inserted and arranged on the integrated valve block.

[0016] Preferably, the controller is a PLC controller.

[0017] In view of the prior art, the buffer reversing valve assembly can control the opening and closing of the first oil supply interface and the second oil supply interface through the first reversing electromagnetic valve and the second reversing electromagnetic valve, so as to meet the oil supply requirement under different working conditions. Under normal working conditions, the unloading electromagnetic valve can be closed to seal the pressure relief interface. When maintenance or equipment suspension is needed, the unloading electromagnetic valve can be opened to make the pressure relief interface conductive, so that the high-pressure oil in the valve cavity and the related oil circuit is quickly discharged through the oil pressure energy relief device, thereby achieving efficient pressure relief of the corresponding pipeline and chamber, effectively avoiding the situation that the motor is started under load when the subsequent equipment is restarted, reducing the starting load of the motor, and improving the service life and starting efficiency of the motor and related components. Through the timely closing of the unloading electromagnetic valve, the valve cavity and the related main pipeline can be prevented from being relieved through the pressure relief interface when the related pipeline of the buffer reversing valve assembly is locally relieved, thereby ensuring the operation efficiency of the buffer reversing valve assembly and the related hydraulic system at different stations. Correspondingly, the multiple electromagnetic valves are integrated on the integrated valve block, which can effectively avoid the problems of large equipment size and complex assembly structure caused by arranging the control valves independently in the prior art, greatly improving the component integration of the buffer reversing valve assembly, and making the overall assembly structure of the equipment more compact and regular.

[0018] In another preferred embodiment of the present application, two pressure transmitters are arranged on the integrated valve block and are in one-to-one correspondence with the first oil supply interface and the second oil supply interface, respectively. The pressure transmitters are in communication connection with the controller. The pressure transmitters can monitor the oil pressure at the first oil supply interface and the second oil supply interface in real time, and feed back the monitoring data to the controller in time, so that the operator can timely grasp the oil pressure in the corresponding hydraulic pipeline and the operation state of the related equipment, thereby taking pressure relief or pressure increasing operation in time when necessary, to ensure the smooth and efficient operation of the buffer reversing valve assembly and the related hydraulic system. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The buffer reversing valve assembly provided in the specific embodiment of the present application is shown in the axonometric view.

[0021] Figure 2 For Figure 1a top view of the

[0022] Figure 3 is Figure 1 a bottom view of the

[0023] Figure 4 is Figure 1 a front view of the

[0024] Figure 5 is Figure 1 a rear view of the

[0025] Figure 6 is Figure 1 a right view of the

[0026] Figure 7 is Figure 1 a left view of the

[0027] wherein:

[0028] 10-integrated valve block; 101-first oil supply interface; 102-second oil supply interface; 103-oil return interface; 104-pressure relief interface;

[0029] 11-first reversing solenoid valve;

[0030] 12-second reversing solenoid valve;

[0031] 13-unloading solenoid valve;

[0032] 14-pressure transmitter;

[0033] 15-manual throttle valve;

[0034] 16-damping module;

[0035] 17-lifting ring. DETAILED DESCRIPTION

[0036] The core of the utility model is to provide a kind of buffer reversing valve assembly, the assembly integration of this buffer reversing valve assembly is higher, and its assembly structure layout is more compact.

[0037] In order to make the personnel in this technical field better understand the utility model scheme, the utility model is further detailed below with the specific embodiments and the accompanying drawings.

[0038] It needs to be explained in advance that in the utility model, unless there is definite stipulation and limitation, the terms "mount", "connect", "joint", "fix" and so on should be understood in broad sense, for example, it can be fixed connection, also can be detachable connection, or integrally connected, it can be direct connection, also can be indirect connection through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0039] In addition, in the utility model, unless there is definite stipulation and limitation, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0040] In addition, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature. The orientation or positional relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0041] Please refer to Figures 1 to 7 .

[0042] In the specific embodiment, the buffer reversing valve assembly provided by the utility model includes a controller, a cylinder and an integrated valve block 10 with a valve cavity inside, the integrated valve block 10 is provided with a first oil supply interface 101 and a second oil supply interface 102 for the hydraulic oil to pass from the cylinder into the valve cavity, and the integrated valve block 10 is also provided with a plurality of oil return interfaces 103 for the hydraulic oil to return from the valve to the cylinder and a pressure relief interface 104 in communication with an oil pressure energy relief device.

[0043] The integrated valve block 10 is provided with a first reversing electromagnetic valve 11 capable of controlling the on-off of the first oil supply interface 101, a second reversing electromagnetic valve 12 capable of controlling the on-off of the second oil supply interface 102 and an unloading electromagnetic valve 13 capable of controlling the on-off of the pressure relief interface 104, and the first reversing electromagnetic valve 11, the second reversing electromagnetic valve 12 and the unloading electromagnetic valve 13 are respectively in communication connection with the controller.

[0044] During the operation of the device, the first and second oil supply interfaces 101 and 102 can be opened and closed by the first and second reversing electromagnetic valves 11 and 12, respectively, to meet the oil supply requirements under different working conditions.

[0045] Under normal working conditions, the unloading electromagnetic valve 13 can be closed to close the pressure relief interface 104. When maintenance or device suspension is required, the unloading electromagnetic valve 13 can be opened to conduct the pressure relief interface 104, so that the high-pressure oil in the valve cavity and the related oil circuit is quickly discharged by the oil pressure relief device, thereby achieving efficient pressure relief of the corresponding pipeline and chamber, effectively avoiding the motor load start-up during the subsequent device restart, reducing the motor start-up load, and improving the service life and start-up efficiency of the motor and its related components. By timely closing of the unloading electromagnetic valve 13, the valve cavity and the related main pipeline can be prevented from being relieved through the pressure relief interface 104 when the related pipeline of the buffer reversing valve assembly is subjected to local pressure relief, thereby ensuring the operation efficiency of the buffer reversing valve assembly and its related hydraulic system at different stations.

[0046] Correspondingly, the integration of multiple electromagnetic valves on the integrated valve block 10 can effectively avoid the problems of excessive device size and complex assembly structure caused by the independent arrangement of each control valve in the prior art, greatly improving the component integration of the buffer reversing valve assembly and making the overall assembly structure of the device more compact and regular.

[0047] In addition, the timely opening of the unloading electromagnetic valve 13 and the corresponding pressure relief operation can effectively reduce the pipeline oil impact on the reversing electromagnetic valves during the reversing operation, reduce or even eliminate the noise problem, thereby greatly reducing the noise pollution caused by the hydraulic system and its supporting control valve device during operation to the surrounding environment, and correspondingly reducing the structural damage to the pipeline and control valve caused by frequent reversing structure impact, improving the service life of the hydraulic system and its related pipeline and supporting equipment, and improving the overall working condition resistance of the buffer reversing valve assembly.

[0048] Specifically, the integrated valve block 10 is provided with two pressure transmitters 14 corresponding to the first and second oil supply interfaces 101 and 102, respectively, which are in communication with the controller. The pressure transmitters 14 can monitor the oil pressure at the first and second oil supply interfaces 101 and 102 in real time and feed back the monitoring data to the controller in a timely manner, so that the operating personnel can timely grasp the oil pressure in the hydraulic pipeline and the operating state of the related equipment, thereby taking timely pressure relief or pressure increasing operation when necessary to ensure smooth and efficient operation of the buffer reversing valve assembly and its related hydraulic system.

[0049] More specifically, two manual throttle valves 15 are arranged on the integrated valve block 10 and are respectively in one-to-one correspondence with the first oil supply interface 101 and the second oil supply interface 102. When the pressure transmitter 14 detects abnormal oil pressure at the corresponding oil supply interface, the manual throttle valve 15 can be used to control the adjustment of the oil pressure at the first oil supply interface 101 and / or the second oil supply interface 102, so that the oil in the corresponding pipeline can quickly return to a state that meets the current operating requirements, ensuring the stable operation of the buffer reversing valve assembly and its corresponding hydraulic system.

[0050] On this basis, a damping module 16 is arranged on the integrated valve block 10 and is in communication with the valve cavity. The damping module 16 can provide reliable protection for the valve core and instruments matched with the valve cavity and the communication pipeline, reduce the adverse effects of hydraulic flow impact or pressure imbalance in the hydraulic system on instruments and valve cores and other functional components in the pipeline system, and especially reduce the damage of water hammer effect and other phenomena to the entire hydraulic system, thereby prolonging the service life of the related pipeline, valve core and instrument.

[0051] Generally, the damping module 16 can be a commonly used pipeline damper in the industry, and its specific structure type can be flexibly selected and adjusted according to actual operating requirements. In principle, as long as it can meet the actual application needs of the buffer reversing valve assembly, it is acceptable.

[0052] In addition, the manual throttle valve 15 is detachably inserted and arranged on the integrated valve block 10. This kind of detachable insertion connection method helps to further improve the assembly and adaptation efficiency of the integrated valve block 10 and the manual throttle valve 15, so as to implement the corresponding disassembly and assembly processing of the manual throttle valve 15 when necessary, thereby meeting the assembly application requirements under different operating conditions, so as to further improve the operating condition adaptability of the buffer reversing valve assembly.

[0053] On the other hand, the first reversing solenoid valve 11, the second reversing solenoid valve 12 and the unloading solenoid valve 13 are respectively detachably inserted and arranged on the integrated valve block 10. Similar to the arrangement effect of the manual throttle valve 15 mentioned above, the first reversing solenoid valve 11, the second reversing solenoid valve 12 and the unloading solenoid valve 13 are respectively inserted and arranged on the integrated valve block 10, and adopt a detachable assembly structure, which can effectively optimize the assembly structure layout between the solenoid valves and the integrated valve block 10, so as to implement the disassembly and installation of the corresponding solenoid valves when necessary, thereby improving the operation efficiency of the corresponding component maintenance and replacement, and further improving the operating condition adaptability of the buffer reversing valve assembly.

[0054] Generally, the oil pressure relief device comprises an accumulator and a pressure regulating valve, and the pressure regulating valve is in communication connection with the controller. The accumulator and the pressure regulating valve cooperate to effectively improve the oil discharge efficiency at the pressure relief interface 104 after the unloading electromagnetic valve 13 is opened, so that the corresponding pipeline pressure relief process is more smooth and efficient, thereby further reducing the structural impact and load at the relevant pipeline, and the corresponding working noise is also reduced, so that the working operation of the buffer reversing valve assembly is more smooth and quiet.

[0055] Further, the pressure regulating valve is detachably inserted and arranged on the integrated valve block 10. By using this flexible disassembly and installation plug-in connection adaptation mode, the adaptation effect between the pressure regulating valve and the integrated valve block 10 can be further optimized, so as to disassemble and install the pressure regulating valve when necessary, improve the maintenance and replacement processing efficiency of the corresponding pressure regulating valve, and further improve the working condition adaptation ability of the buffer reversing valve assembly.

[0056] In addition, the integrated valve block 10 is detachably inserted and arranged with a hydraulic control check valve in communication connection with the controller. In actual application, the number of the hydraulic control check valve can be flexibly adjusted according to the actual working condition requirements, and each hydraulic control check valve is arranged in the corresponding pipeline to meet the one-way oil conduction requirement of the corresponding pipeline, avoid oil backflow and blockage, and ensure the smooth and efficient operation of the buffer reversing valve assembly and the corresponding hydraulic system.

[0057] In addition, in actual application, the controller is generally a PLC (Programmable Logic Controller) controller. This kind of PLC controller has good adaptation effect with front-end working components such as control valves and corresponding terminal monitoring devices such as computers, and can fully meet the actual operation requirements of the buffer reversing valve assembly.

[0058] In actual application, a lifting ring 17 can also be fixedly arranged on the outer wall of the integrated valve block 10, which is connected to a rope hoisting and pulling device, so as to use hoisting equipment to hoist and install the main structure of the buffer reversing valve assembly to the target working position, thereby more smoothly and efficiently completing the equipment assembly and pipeline connection arrangement, and further reducing the labor intensity of the relevant workers and improving the overall installation efficiency of the hydraulic system.

[0059] The buffering reversing valve assembly provided by the utility model can control the opening and closing of the first oil supply interface and the second oil supply interface through the first reversing electromagnetic valve and the second reversing electromagnetic valve respectively in the operation process, so as to meet the oil supply requirement under different working conditions. On this basis, the unloading electromagnetic valve can be closed under normal working conditions, so that the pressure relief interface is closed. When maintenance or equipment suspension is needed, the unloading electromagnetic valve can be opened, so that the pressure relief interface is conducted, thereby the high-pressure oil in the valve cavity and the related oil circuit is quickly discharged by the oil pressure energy releasing device, so that efficient pressure relief of the corresponding pipeline and chamber is realized, thereby effectively avoiding the situation that the motor is started under load when the subsequent equipment is restarted, the starting load of the motor is reduced, the service life and starting efficiency of the motor and the related matching components are improved, and timely closing of the unloading electromagnetic valve can ensure that the valve cavity and the related main pipeline are not relieved by the pressure relief interface when the related pipeline of the buffering reversing valve assembly is locally relieved, thereby ensuring the operation efficiency of the buffering reversing valve assembly and the related hydraulic system at different stations. Correspondingly, the multiple electromagnetic valves are integrated on the integrated valve block, so that the problems of large equipment size and complex assembly structure caused by independent arrangement of the control valves in the prior art can be effectively avoided, the assembly integration of the buffering reversing valve assembly is greatly improved, and the overall assembly structure of the equipment is more compact and regular.

[0060] The buffering reversing valve assembly provided by the utility model is described in detail. The principles and implementation modes of the utility model are described by applying specific examples in the text. The description of the above examples is only used to help understand the method and core idea of the utility model. It should be pointed out that the utility model can be improved and modified in many ways without departing from the principles of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A cushioned directional control valve assembly characterized by, The hydraulic cylinder comprises a controller, a cylinder and an integrated valve block with a valve cavity, the integrated valve block is provided with a first oil supply interface and a second oil supply interface for hydraulic oil to be supplied from the cylinder to the valve cavity, the integrated valve block is further provided with a plurality of oil return interfaces for hydraulic oil to be returned from the valve block to the cylinder and a pressure relief interface in communication with an oil pressure relief device; The integrated valve block is provided with a first reversing electromagnetic valve capable of controlling the first oil supply interface, a second reversing electromagnetic valve capable of controlling the second oil supply interface and an unloading electromagnetic valve capable of controlling the pressure relief interface, the first reversing electromagnetic valve, the second reversing electromagnetic valve and the unloading electromagnetic valve are respectively in communication connection with the controller.

2. The cushioned directional control valve assembly of claim 1, wherein, The integrated valve block is provided with two pressure transmitters in one-to-one correspondence with the first oil supply interface and the second oil supply interface, the pressure transmitters are in communication connection with the controller.

3. The cushioned directional control valve assembly of claim 2, wherein, The integrated valve block is provided with two manual throttle valves in one-to-one correspondence with the first oil supply interface and the second oil supply interface.

4. The cushioned directional control valve assembly of claim 3, wherein, The integrated valve block is provided with a damping module in communication with the valve cavity.

5. The cushioned directional control valve assembly of claim 3, wherein, The manual throttle valves are detachably inserted and arranged on the integrated valve block.

6. The cushioned directional control valve assembly of claim 1, wherein, The first reversing electromagnetic valve, the second reversing electromagnetic valve and the unloading electromagnetic valve are respectively detachably inserted and arranged on the integrated valve block.

7. The cushioned directional control valve assembly of claim 1, wherein, The oil pressure relief device comprises an accumulator and a pressure regulating valve, and the pressure regulating valve is in communication connection with the controller.

8. The cushioned directional control valve assembly of claim 7, wherein, The pressure regulating valve is detachably inserted and arranged on the integrated valve block.

9. The cushioning shuttle valve assembly of claim 1, wherein, The integrated valve block is detachably inserted and arranged with a hydraulic control check valve in communication connection with the controller.

10. The cushioned directional control valve assembly of claim 1, wherein, The controller is a PLC controller.

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