An integrated logic plug-in valve group

Abstract

The present invention discloses an integrated logic plug-in valve group, including: a valve block, a plug-in unit, a cover plate, a threaded one-way throttle valve, and a two-position four-way electromagnetic directional control valve a. The plug-in unit and the threaded one-way throttle valve are installed on the valve block through the cover plate. The threaded one-way throttle valve is used to adjust the closing or opening time of the plug-in unit. The two-position four-way electromagnetic directional control valve a is installed on the valve block and is used to be respectively connected to the oil chamber of the oil cylinder and an external oil source. When the hydraulic system is operating, the two-position four-way electromagnetic directional control valve a is in a de-energized state. A part of the external oil source directly enters the oil cylinder through this valve. When it is necessary to replace parts and vulnerable parts, this valve is energized, and the hydraulic oil in the oil cylinder is drained back to the fuel tank, and then the parts and vulnerable parts can be replaced. In addition, when the system flow rate is large, the operating speed of the actuator oil cylinder is fast. In order to prevent the oil cylinder from hitting the cylinder when it runs to the end, the opening degree of the threaded one-way throttle valve is adjusted to reduce the impact of the oil cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulics, and particularly relates to an integrated logic cartridge valve group. Background Art

[0002] In order to protect the environment, the state has increasingly high requirements for the production of existing coal mines, metal and non-metal mines and other enterprises. In specific production operations, in order to avoid risks such as excessive environmental pollution in the mining area and collapse in the goaf, solid waste such as tailings, crushed stones, fly ash, and industrial slag in the mine are usually made into a paste-like slurry that does not require dehydration, and continuously transported to the goaf for filling through a filling industrial pump. This method can improve the resource extraction rate and reduce land occupation and environmental pollution.

[0003] As the pumping volume requirement of the filling industrial pump is getting larger and larger, the hydraulic valves used in the existing filling industrial pump hydraulic system are difficult to meet the requirements of large flow. How to provide a hydraulic valve that meets the above requirements is a technical problem that those skilled in the art need to solve at present. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an integrated logic cartridge valve group, which can meet the demand of large flow and has the advantage of convenient maintenance.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An integrated logic cartridge valve group includes: a valve block, cartridges, a cover plate, a threaded one-way throttle valve, and a two-position four-way electromagnetic directional control valve a. The cartridges and the threaded one-way throttle valve are installed on the valve block through the cover plate. The threaded one-way throttle valve is used to adjust the closing or opening time of the cartridges. The two-position four-way electromagnetic directional control valve a is installed on the valve block, and the two-position four-way electromagnetic directional control valve a is used to be connected to the oil chamber of the oil cylinder and an external oil source respectively.

[0007] Preferably, a two-position four-way electromagnetic directional control valve b is also integrated on the valve block, and the two-position four-way electromagnetic directional control valve b is used to be connected to the rod chamber of the oil cylinder and the external oil source respectively.

[0008] Preferably, a three-position four-way electromagnetic directional control valve is also integrated on the valve block, and the three-position four-way electromagnetic directional control valve is used to be connected to the top of the cartridges and the external oil source respectively.

[0009] Preferably, two mutually series-connected three-position four-way electromagnetic directional control valves are integrated on the valve block.

[0010] Preferably, the three-position four-way electromagnetic directional control valve directly connected to the external oil source is also connected to a two-position four-way electromagnetic directional control valve c, and the two-position four-way electromagnetic directional control valve c is also used to be connected to the fuel tank.

[0011] Preferably, a two-way cartridge pressure valve and an electromagnetic reversing valve are also integrated on the valve block.

[0012] Compared with the prior art, the above technical solution has the following advantages:

[0013] An integrated logic cartridge valve group provided by the present invention includes: a valve block, a plug-in, a cover plate, a threaded one-way throttle valve, and a two-position four-way electromagnetic reversing valve a. The plug-in and the threaded one-way throttle valve are installed on the valve block through the cover plate. The threaded one-way throttle valve is used to adjust the closing or opening time of the plug-in. The two-position four-way electromagnetic reversing valve a is installed on the valve block. The two-position four-way electromagnetic reversing valve a is used to be connected to the oil chamber of the oil cylinder and the external oil source respectively. When the hydraulic system is running, the two-position four-way electromagnetic reversing valve a is in a de-energized state. A part of the external oil source directly enters the oil cylinder through this valve. When it is necessary to replace parts and vulnerable parts, this valve is energized, and the hydraulic oil in the oil cylinder is drained back to the oil tank, and then the parts and vulnerable parts can be replaced. In addition, when the system flow rate is large, the operating speed of the actuator oil cylinder is fast. In order to prevent the oil cylinder from hitting the cylinder when it runs to the end, the opening degree of the threaded one-way throttle valve is adjusted to reduce the impact of the oil cylinder. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0015] Figure 1 The front view of an integrated logic cartridge valve group provided by a specific embodiment of the present invention;

[0016] Figure 2 The top view of an integrated logic cartridge valve group provided by a specific embodiment of the present invention;

[0017] Figure 3 The side view of an integrated logic cartridge valve group provided by a specific embodiment of the present invention;

[0018] Figure 4 The working principle schematic diagram of an integrated logic cartridge valve group provided by a specific embodiment of the present invention.

[0019] The reference numerals are as follows:

[0020] 1 is a plug-in, 1.1 is plug-in a, 1.2 is plug-in b, 1.3 is plug-in c, 1.4 is plug-in d, 2 is a cover plate, 3 is a three-position four-way electromagnetic directional control valve, 3.1 is three-position four-way electromagnetic directional control valve a, 3.2 is three-position four-way electromagnetic directional control valve b, 4 is a valve block, 5 is a two-way cartridge pressure valve, 6 is a threaded one-way throttle valve, 7 is a two-position four-way electromagnetic directional control valve, 7.1 is two-position four-way electromagnetic directional control valve a, 7.2 is two-position four-way electromagnetic directional control valve b, 7.3 is two-position four-way electromagnetic directional control valve c. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 to 4 , Figure 1 which is the front view of an integrated logic cartridge valve group provided by a specific implementation mode of the present invention; Figure 2 which is the top view of an integrated logic cartridge valve group provided by a specific implementation mode of the present invention; Figure 3 which is the side view of an integrated logic cartridge valve group provided by a specific implementation mode of the present invention; Figure 4 which is the schematic diagram of the working principle of an integrated logic cartridge valve group provided by a specific implementation mode of the present invention.

[0023] An integrated logic cartridge valve group provided by an embodiment of the present invention includes: a valve block 4, a plug-in unit, a cover plate 2, a threaded one-way throttle valve 6, and a plurality of two-position four-way electromagnetic reversing valves 7. Preferably, three of them are provided, which are respectively denoted as two-position four-way electromagnetic reversing valves a, b, and c. The plug-in unit 1 and the threaded one-way throttle valve 6 are installed on the valve block 4 through the cover plate 2. The circular runout of the plug-in unit 1 and the valve block 4 needs to be controlled within the range of 0.05 mm. The threaded one-way throttle valve 6 is used to adjust the closing or opening time of the plug-in unit 1 to ensure smoothness during commutation and effectively reduce commutation hydraulic shock. The two-position four-way electromagnetic reversing valve a is installed on the valve block 4 and is used to connect to the oil chamber of the oil cylinder and the external oil source respectively. The two-position four-way electromagnetic reversing valve b is used to connect to the oil rod chamber of the oil cylinder and the external oil source respectively. When the hydraulic system is operating, the two-position four-way electromagnetic reversing valve a is in a de-energized state, and a part of the external oil source directly enters the oil cylinder through this valve. When it is necessary to replace parts and vulnerable parts, this valve is energized, and the hydraulic oil in the oil cylinder is drained back to the fuel tank, and then the parts and vulnerable parts can be replaced. In addition, when the system flow rate is large and the actuator oil cylinder runs fast, in order to prevent the oil cylinder from hitting the cylinder when it runs to the end, the two-position four-way electromagnetic reversing valve b is energized or de-energized to supply oil to the oil rod chamber end of the oil cylinder or adjust the opening degree of the threaded one-way throttle valve 6 to reduce the impact of the oil cylinder.

[0024] Further, a three-position four-way electromagnetic reversing valve 3 is also integrated on the valve block 4. The three-position four-way electromagnetic reversing valve 3 is used to connect to the top of the plug-in unit 1 and the external oil source respectively. There are four plug-in units integrated on the valve block 4, which are respectively denoted as plug-in unit a 1.1, plug-in unit b 1.2, plug-in unit c 1.3, and plug-in unit d 1.4. The oil sources of each plug-in unit are in a closed state through the three-position four-way electromagnetic reversing valve 3, and the neutral position function is of type O. In addition, there are two three-position four-way electromagnetic reversing valves 3 integrated in series on the valve block 4, which are respectively denoted as three-position four-way electromagnetic reversing valves a and b. The two valves are preferably Y-type valves. The three-position four-way electromagnetic reversing valve b 3.2 directly connected to the external oil source is also connected to a two-position four-way electromagnetic reversing valve c 7.3, and the two-position four-way electromagnetic reversing valve c 7.3 is connected to the fuel tank. Secondly, a two-way cartridge pressure valve 5 and an electromagnetic reversing valve are also integrated on the valve block 4. The two-way cartridge pressure valve 5 and the electromagnetic reversing valve are used in combination to make the system in a pressure-reducing and pressure-loss state. The two valves cooperate with the special main valve block 4 to form an integrated block, which can be directly installed on the valve block 4 of the integrated logic cartridge valve group. During specific use, the integrated logic cartridge valve group is installed on the bracket, and the P-port oil source is externally connected. When the three-position four-way electromagnetic reversing valve a 3.1 is energized and in the left position, the hydraulic oil directly enters the tops of the plug-in unit a 1.1 and the plug-in unit d 1.4, making the two in a closed state. The plug-in unit c 1.3 is in an open state through the P-port oil pressure, so that the oil flows out from the B port and enters the actuator oil cylinder. By energizing or de-energizing the three-position four-way electromagnetic reversing valve 3 left and right, the pressure oil alternately outputs from the A / B ports, that is, the actuator oil cylinder runs alternately.

[0025] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0026] The above has introduced in detail an integrated logic plug-in valve group provided by the present invention. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An integrated logic plug-in valve group, characterized in that, Comprising: A valve block, a plug-in unit, a cover plate, a screw-type one-way throttle valve, and a two-position four-way electromagnetic directional control valve a. The plug-in unit and the screw-type one-way throttle valve are installed on the valve block through the cover plate. The screw-type one-way throttle valve is used to adjust the closing or opening time of the plug-in unit. The two-position four-way electromagnetic directional control valve a is installed on the valve block and is used to connect to the oil cavity of the oil cylinder and an external oil source respectively. A two-position four-way electromagnetic directional control valve b is also integrated on the valve block and is used to connect to the rod chamber of the oil cylinder and the external oil source respectively. When the hydraulic system is operating, the two-position four-way electromagnetic directional control valve a is in a de-energized state. Part of the external oil source directly enters the oil cylinder through this valve. When this valve is energized, the hydraulic oil in the oil cylinder is drained back to the fuel tank. By the energization and de-energization of the two-position four-way electromagnetic directional control valve b, the rod chamber end of the oil cylinder is refueled or the opening degree of the screw-type one-way throttle valve is adjusted to reduce the impact of the oil cylinder. A three-position four-way electromagnetic directional control valve is also integrated on the valve block and is used to connect to the top of the plug-in unit and the external oil source respectively. There are four plug-in units integrated on the valve block, which are respectively denoted as plug-in unit a, plug-in unit b, plug-in unit c, and plug-in unit d. The oil sources of each plug-in unit are in a closed state through the three-position four-way electromagnetic directional control valve, and the neutral position function is of the O type. There are two three-position four-way electromagnetic directional control valves connected in series on the valve block, which are respectively denoted as three-position four-way electromagnetic directional control valve a and three-position four-way electromagnetic directional control valve b. The oil return port of the three-position four-way electromagnetic directional control valve b directly connected to the external oil source is also connected to a two-position four-way electromagnetic directional control valve c, and the two-position four-way electromagnetic directional control valve c is also used to connect to the fuel tank. When the three-position four-way electromagnetic directional control valve a is energized and in the left position, hydraulic oil directly enters the tops of plug-in unit a and plug-in unit d, making the two in a closed state. Plug-in unit c is in an open state through the oil pressure at the P port, so that the oil flows out from port B and enters the actuator oil cylinder. By the energization and de-energization of the three-position four-way electromagnetic directional control valve a on the left and right, the pressure oil alternately outputs from ports A / B. A two-way cartridge pressure valve and an electromagnetic directional control valve are also integrated on the valve block. Among them, the two-way cartridge pressure valve is used in combination with the electromagnetic directional control valve to make the system in a pressure-reducing and pressure-loss state.

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