Motor control valve group

Abstract

A motor control valve group relates to the technical field of hydraulic valves and comprises a valve body, two hydraulic control one-way valves mounted on the valve body and three blanking caps mounted on the valve body. The motor control valve group is applied to a double-motor rotary box, and when the rotary box rotates forwards, the rotary box outputs power at a high rotating speed and low torque; when the rotary box rotates reversely, power is output at low rotating speed and high torque. When power is output at a high forward rotation speed and low torque, the working efficiency of the drilling machine during drilling can be improved; when power is output at low rotating speed and high torque in reverse rotation, the drill rod can be conveniently detached.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic valve technology, and in particular to a motor control valve assembly. Background Technology

[0002] With the increasing level of industrial automation, hydraulic and electric drive technologies are widely used in heavy machinery, intelligent equipment, and other fields. As the core regulating unit of the power system, the hydraulic motor control valve group realizes the start-stop, speed regulation, and torque control of the motor by precisely regulating the flow, pressure, and direction of hydraulic oil, ensuring the stable operation of equipment under high load and complex working conditions.

[0003] In practice, some integrated valve groups are prone to brake opening and closing delays when switching between multiple operating conditions due to insufficient precision in the coordination between the hydraulic directional valve and the shuttle valve, which affects the synchronous control effect.

[0004] Therefore, a motor control valve assembly is needed, which is applied to a dual-motor rotary box. When the rotary box rotates forward, it outputs power at high speed and low torque; when the rotary box rotates in reverse, it outputs power at low speed and high torque. The forward high-speed, low-torque output improves the drilling efficiency; the reverse low-speed, high-torque output facilitates drill rod disassembly. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model provides a motor control valve assembly to solve these problems.

[0006] The technical solution used in this utility model is: a motor control valve group, including a valve body, two hydraulic check valves installed on the valve body, and three plugs installed on the valve body 1;

[0007] The valve body is provided with CV1 and CV2, which are located on two adjacent sides of the valve body.

[0008] Preferably, the two hydraulically controlled check valves are installed on ports CV1 and CV2, respectively.

[0009] Preferably, the hydraulic check valve is equipped with a sealing ring.

[0010] Preferably, the valve body has three adjacent sides with connecting ports, and three plugs are screwed onto the three connecting ports respectively.

[0011] Preferably, hydraulic pipes are externally installed on the three connecting ports on the valve body.

[0012] The advantages of this utility model compared with the prior art are:

[0013] When the rotary box rotates forward, it outputs power at high speed and low torque; when the rotary box rotates in reverse, it outputs power at low speed and high torque. The forward rotation with high speed and low torque output improves the drilling efficiency; the reverse rotation with low speed and high torque output facilitates the disassembly of the drill rod. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model from a first angle.

[0015] Figure 2 This is a second-angle structural diagram of the overall part of this utility model.

[0016] Figure 3 This is a schematic diagram of the overall structure of this utility model from a third angle.

[0017] Figure 4 This is a schematic diagram of the overall structure of this utility model from the fourth angle.

[0018] Figure 5 This is a schematic diagram of the first angle structure of the hydraulic control check valve of this utility model.

[0019] Figure 6 This is a schematic diagram of the second angle structure of the hydraulic control check valve of this utility model.

[0020] Figure 7 This is a side view of the valve body of this utility model.

[0021] The attached diagram shows: 1. Valve body; 2. Hydraulic check valve; 4. Plug. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example:

[0025] like Figures 1-7 As shown, a motor control valve assembly includes a valve body 1, two hydraulic check valves 2 mounted on the valve body 1, and three plugs 4 mounted on the valve body 1.

[0026] like Figures 1-3 As shown, valve body 1 is provided with CV1 port and CV2 port, which are located on two adjacent sides of valve body 1.

[0027] like Figures 1-4 As shown, two hydraulically controlled check valves 2 are installed on ports CV1 and CV2, respectively.

[0028] like Figure 5 , Figure 6 As shown, the hydraulic control check valve 2 is equipped with a sealing ring, which can prevent leakage when the valve body is working.

[0029] like Figures 1-4 As shown, the valve body 1 has three adjacent side ports, and three plugs 4 are screwed onto the three side ports respectively.

[0030] like Figures 1-7 As shown, hydraulic pipes are externally installed on the three connecting ports on valve body 1.

[0031] During operation, the three plugs 4 are manually unscrewed, and the hydraulic pipes are screwed onto the three connecting ports. Hydraulic oil enters the valve body 1 through the three connecting ports. When the rotary box rotates forward, it outputs power at high speed and low torque; when the rotary box rotates in reverse, it outputs power at low speed and high torque. The forward high speed and low torque output improves the drilling efficiency; the reverse low speed and high torque output facilitates the disassembly of the drill rod.

[0032] 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 motor control valve block characterized by, Includes valve body (1), two hydraulic check valves (2) installed on valve body (1), and three plugs (4) installed on valve body; The valve body (1) is provided with CV1 port and CV2 port, which are located on two adjacent sides of the valve body (1).

2. The motor control valve block of claim 1, wherein, The two hydraulic control check valves (2) are installed on CV1 port and CV2 port respectively.

3. The motor control valve block of claim 1, wherein, The hydraulic control check valve (2) is equipped with a sealing ring.

4. The motor control valve block of claim 1, wherein, The valve body (1) has three adjacent sides with connecting ports respectively, and three plugs (4) are screwed onto the three connecting ports respectively.

5. The motor control valve block of claim 4, wherein, Hydraulic pipes are externally installed on the three connecting ports of the valve body (1).

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