Control valve group special for synchronous shunting

Abstract

The utility model discloses a special control valve bank for synchronous shunting, and relates to the technical field of valve banks. According to the control valve set special for synchronous flow dividing, hydraulic oil enters from the oil source port, is divided into two parts after passing through the synchronous flow dividing valve, passes through the first flow dividing port and the second flow dividing port of the synchronous flow dividing valve and then reaches the executing mechanisms, the executing mechanisms on the two sides complete synchronous work, and synchronous work of two oil cylinders or motors is achieved. In addition, when the hydraulic oil pressure of the two executing mechanisms is too large and is larger than the set pressure value of the first overflow valve and the second overflow valve, the first overflow valve and the second overflow valve are opened and communicated, the pressure is released, and the hydraulic oil flows back to the oil return opening. According to the control valve set special for synchronous shunting, under different loads and conditions, the speed on the two sides can be accurately adjusted to be the same, the pressure conditions of executing mechanisms on the two sides can be monitored in time, and the situation that hydraulic oil overflows is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve group technical field, especially a kind of control valve group for synchronous shunt. BACKGROUND

[0002] Motor brake is widely used in various construction operations, it is mainly controlled by special control valve to its working state, the opening and closing of control valve can control the opening and closing of brake;In the past, speed regulating valve is generally installed on oil cylinder or motor to realize, but in this case, under different load and condition, it is often difficult to accurately adjust the speed of both sides to be the same, and the pressure condition of the execution mechanism on both sides cannot be monitored in time, and hydraulic oil overflow is prone to occur. CONTENT OF UTILITY MODEL

[0003] The utility model provides a kind of control valve group for synchronous shunt to the technical problem in the above background technology.

[0004] The utility model solves the above technical problem by the following technical scheme:

[0005] The utility model provides a kind of control valve group for synchronous shunt. The control valve group includes the valve body of rectangular body, the left side surface of the valve body is equipped with synchronous shunt valve, the upper side surface of the valve body is equipped with first overflow valve and second overflow valve, the right side surface of the valve body is equipped with oil return port, the front side surface of the valve body is equipped with oil source port, the rear side surface of the valve body is equipped with first execution mechanism interface and second execution mechanism interface;

[0006] The synchronous shunt valve includes oil inlet, first shunt port and second shunt port, the oil inlet is connected with the oil source port, the first shunt port is connected with the first execution mechanism interface, the second shunt port is connected with the second execution mechanism interface;

[0007] The first overflow valve is connected with the first execution mechanism interface, and the second overflow valve is connected with the second execution mechanism interface.

[0008] Preferably, the first overflow valve includes first oil inlet and first oil outlet, and the second overflow valve includes second oil inlet and second oil outlet;The first oil outlet and the second oil outlet are connected with the oil return port;The first oil inlet is connected with the first execution mechanism interface, and the second oil inlet is connected with the second execution mechanism interface.

[0009] Preferably, first pressure measuring port and second pressure measuring port are further provided on the front side surface of the valve body, the first pressure measuring port is connected at the first execution mechanism interface, and the second pressure measuring port is connected at the second execution mechanism interface.

[0010] Preferably, the synchronization shunt valve, the first overflow valve and the second overflow valve are all plug-in valves.

[0011] Preferably, the first overflow valve and the second overflow valve are both direct-acting overflow valves.

[0012] Preferably, the upper side of the valve body is provided with mounting holes, which are four through holes distributed in the corners of the upper side of the valve body.

[0013] Preferably, the valve body is made of alloy steel.

[0014] The positive progress effect of the utility model lies in: the utility model provides a control valve group special for synchronization shunt. The control valve group special for synchronization shunt is entered by hydraulic oil from an oil source port, realizes two-way distribution after a synchronization shunt valve, and reaches an actuating mechanism after a first shunt port and a second shunt port of the synchronization shunt valve, so that the actuating mechanisms on both sides complete synchronization work and realize the synchronization work of two oil cylinders or motors. In addition, when the hydraulic oil pressure of the two actuating mechanisms is too large, greater than the pressure value set by the first overflow valve and the second overflow valve, the first overflow valve and the second overflow valve open the communication, the pressure is released, and the hydraulic oil returns to the oil return port. The control valve group special for synchronization shunt realizes that the speeds on both sides are accurately adjusted to be the same fast or slow under different loads and conditions, and the pressure conditions of the actuating mechanisms on both sides are monitored in time, and the hydraulic oil overflow is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the valve body part of the utility model.

[0016] Figure 2 It is a structure schematic view of the synchronization shunt valve of the utility model.

[0017] Figure 3 It is a structure schematic view of the first overflow valve of the utility model.

[0018] Figure 4 It is a structure schematic view of the second overflow valve of the utility model.

[0019] Figure 5 It is a working principle view of the control valve group special for synchronization shunt of the utility model.

[0020] LEGEND: 1, valve body; 2, synchronization shunt valve; 3, first overflow valve; 4, second overflow valve; 5, oil source port; 6, oil return port; 7, first actuating mechanism interface; 8, second actuating mechanism interface; 9, first pressure measuring port; 10, second pressure measuring port; 11, mounting hole; 21, oil inlet; 22, first shunt port; 23, second shunt port; 31, first oil inlet; 32, first oil outlet; 41, second oil inlet; 42, second oil outlet. Detailed Implementation

[0021] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0022] Example 1

[0023] like Figures 1-5 As shown, this embodiment provides a control valve assembly specifically for synchronous flow splitting. The control valve assembly includes a rectangular valve body 1, a synchronous flow splitting valve 2 installed on the left side of the valve body 1, a first overflow valve 3 and a second overflow valve 4 provided on the upper side of the valve body 1, an oil return port 6 provided on the right side of the valve body 1, an oil source port 5 provided on the front side of the valve body 1, and a first actuator interface 7 and a second actuator interface 8 provided on the rear side of the valve body 1.

[0024] The synchronous flow divider valve 2 includes an oil inlet 21, a first flow divider 22, and a second flow divider 23. The oil inlet 21 is connected to the oil source port 5, the first flow divider 22 is connected to the first actuator interface 7, and the second flow divider 23 is connected to the second actuator interface 8. The first relief valve 3 is connected to the first actuator interface 7, and the second relief valve 4 is connected to the second actuator interface 8.

[0025] The first overflow valve 3 includes a first oil inlet 31 and a first oil outlet 32, and the second overflow valve 4 includes a second oil inlet 41 and a second oil outlet 42; the first oil outlet 32 ​​and the second oil outlet 42 are connected to the return oil port 6; the first oil inlet 31 is connected to the first actuator interface 7, and the second oil inlet 41 is connected to the second actuator interface 8.

[0026] The front side of valve body 1 is also provided with a first pressure measuring port 9 and a second pressure measuring port 10. The first pressure measuring port 9 is connected to the first actuator interface 7, and the second pressure measuring port 10 is connected to the second actuator interface 8. The synchronous flow divider valve 2, the first relief valve 3, and the second relief valve 4 are all cartridge valves. The first relief valve 3 and the second relief valve 4 are both direct-acting relief valves.

[0027] The valve body 1 has four through holes located at the corners of its upper side. The valve body 1 is made of alloy steel.

[0028] In this embodiment, hydraulic oil enters from the oil source port 5, passes through the synchronous flow divider valve 2, and is split into two. The oil then flows through the first flow divider port 22 and the second flow divider port 23 to the two actuators, enabling the actuators to operate synchronously. When the hydraulic oil pressure in the two actuators becomes too high, exceeding the pressure values ​​set by the first relief valve 3 and the second relief valve 4, the first relief valve 3 and the second relief valve 4 open, releasing the pressure and allowing the hydraulic oil to flow back to the return port 6.

[0029] The working principle of the utility model is: when using, hydraulic oil enters from oil source port 5, realizes two, respectively after first shunt port 22 and second shunt port 23 to two executing mechanisms after synchronous shunt valve 2, make executing mechanism complete synchronous work, synchronous keep shunt / collecting valve for slide valve core, have pressure compensation effect, can be used in one direction shunt and in opposite direction collecting. Because of having synchronous keeping characteristic, this kind of valve can make two hydraulic cylinders keep synchronous at full stroke end, when one hydraulic cylinder reaches stroke terminal point, one pressure compensation small flow will flow into and out of another hydraulic cylinder and make it also reach stroke terminal point, should this valve group be synchronous valve core, so when executing mechanism runs to terminal point, this valve can realize final synchronization, realize two oil cylinders or motor synchronous work, mainly applied to the higher speed synchronous requirement of executing mechanism in operation. When the hydraulic oil pressure of two executing mechanisms is too large, greater than the pressure value set by first overflow valve 3 and second overflow valve 4, first overflow valve 3 and second overflow valve 4 open communication, pressure release, hydraulic oil backflow to oil return port 6. The valve is direct-acting overflow valve, it is normally closed pressure limiting valve, commonly used to protect hydraulic elements, to prevent its from the impact of transient pressure. When the pressure reaches the set value of first overflow valve 3 (second overflow valve 4) at first oil inlet 31 (second oil inlet 41), first overflow valve 3 (second overflow valve 4) starts to overflow to first oil outlet 32 (second oil outlet 42), throttling to limit pressure rise. This kind of valve adjustment is stable, noise is small, basically zero leakage. Strong anti oil dirt ability, anti-clogging and corresponding speed is fast.

[0030] Although the above describes the specific implementation of the utility model, those skilled in the art should understand that this is only an example, the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the utility model, but these changes and modifications all fall within the protection scope of the utility model.

Claims

1. A control valve group dedicated to synchronization and partial flow, characterized by, The control valve group comprises a rectangular valve body, a synchronous shunt valve is mounted on the left side of the valve body, a first overflow valve and a second overflow valve are arranged on the upper side of the valve body, an oil return port is arranged on the right side of the valve body, an oil source port is arranged on the front side of the valve body, and a first actuator interface and a second actuator interface are arranged on the rear side of the valve body; The synchronous shunt valve comprises an oil inlet port, a first shunt port and a second shunt port, the oil inlet port is connected with the oil source port, the first shunt port is connected with the first actuator interface, and the second shunt port is connected with the second actuator interface; The first overflow valve is connected with the first actuator interface, and the second overflow valve is connected with the second actuator interface.

2. The control valve group dedicated for synchronization split flow as claimed in claim 1, wherein, The first overflow valve comprises a first oil inlet port and a first oil outlet port, and the second overflow valve comprises a second oil inlet port and a second oil outlet port; the first oil outlet port and the second oil outlet port are connected with the oil return port; the first oil inlet port is connected with the first actuator interface, and the second oil inlet port is connected with the second actuator interface.

3. The control valve group dedicated for synchronization split flow as claimed in claim 2, wherein, First and second pressure measuring ports are arranged on the front side of the valve body, the first pressure measuring port is connected at the first actuator interface, and the second pressure measuring port is connected at the second actuator interface.

4. The control valve group dedicated for synchronization split flow as claimed in claim 3, wherein, The synchronous shunt valve, the first overflow valve and the second overflow valve are all plug-in valves.

5. The control valve group dedicated for synchronization split flow as claimed in claim 4, wherein, The first overflow valve and the second overflow valve are both direct-acting overflow valves.

6. The control valve group dedicated for synchronization split flow as claimed in claim 5, wherein, An installation hole is mounted on the upper side of the valve body, and the installation hole is a through hole distributed in the corner of the upper side of the valve body.

7. The control valve group dedicated for synchronization split flow as claimed in claim 6, wherein, The valve body is made of alloy steel.

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