Punching speed control valve for drilling machine

Abstract

The utility model discloses a fast and slow speed control valve for drilling of a drilling machine, which belongs to the technical field of drilling of the drilling machine and comprises a valve body, a first hydraulic control reversing valve is mounted on one side of the valve body, and a second hydraulic control reversing valve and a shuttle valve are respectively arranged on the left side face of the valve body from left to right. A sequence valve is installed between the second hydraulic control reversing valve and the shuttle valve. Two groups of hydraulic control reversing valves I and shuttle valves are adopted, so that the problems of internal hydraulic control automatic switching of the drilling machine at high speed and low speed and intelligent seamless switching of the speed of the drilling machine are solved, and when the pressure of a motor is increased to a certain value, a thrust oil cylinder senses a signal through a hydraulic element, the oil cylinder retreats, and the speed of the drilling machine is controlled. When a drill bit of a drilling machine drills, the control valve can automatically switch the high speed and the low speed of the drilling motor according to actual requirements, so that the drilling machine can efficiently work, and the control valve has the advantages of being easy to operate, stable, reliable, resistant to corrosion, long in service life and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drilling machine punching, more particularly to a fast and slow speed control valve for drilling machine punching. BACKGROUND

[0002] Drilling machines are mainly used in the mining and coal mining industries, and coal mine drilling machines, especially coal mine safety tunnel drilling machines, are not only used for drilling operations inside the mine, but also include ground geological exploration, building foundation reinforcement, etc. These drilling machines can drill at various angles and are suitable for tasks such as water exploration, coal exploration, gas extraction, dust injection, etc. inside the mine. In addition, coal mine safety tunnel drilling machines can also be used for drilling in ground geological exploration and building foundation reinforcement, etc.

[0003] Based on the above, the present inventor found that at present, the drilling speed of the drilling machine is usually controlled manually, which cannot be intelligently switched seamlessly, and the service life of the drilling machine is generally low. Therefore, in view of the above, the existing structure is improved to provide a fast and slow speed control valve for drilling machine punching, so as to achieve a more practical purpose. SUMMARY

[0004] 1. Technical problem to be solved

[0005] In view of the problems in the prior art, the purpose of the utility model is to provide a fast and slow speed control valve for drilling machine punching, which can prevent the loosening of the connecting piece between the mosquito net framework rods after a long time of use, resulting in the collapse of the mosquito net framework.

[0006] 2. Technical scheme

[0007] To solve the above problems, the utility model adopts the following technical scheme.

[0008] A fast and slow speed control valve for drilling machine punching, comprising a valve body, a hydraulic control reversing valve one is installed on one side of the valve body, and a hydraulic control reversing valve two and a shuttle valve are arranged on the left side of the valve body from left to right, a sequence valve is installed at the middle position of the hydraulic control reversing valve two and the shuttle valve, a hydraulic control reversing valve three is installed on the right side of the valve body, and a fixed seat is fixedly connected above the valve body, a clamping seat is installed on the inner side of the fixed seat, a clamping edge is fixedly connected on one side of the clamping seat, an installation head is fixedly connected at the upper middle position of the clamping seat, a limiting knob is screwedly connected on the inner side of the clamping edge, ports A1, A2, B1 and B2 are installed on the bottom of the valve body from bottom to top, an interface C is installed on the side of the valve body away from the hydraulic control reversing valve three, and an interface D is arranged at the right upper corner position of the interface C.

[0009] Further, the hydraulic control reversing valve one and the shuttle valve are respectively provided with two groups, and the structure of each group of shuttle valves is consistent.

[0010] Further, when the port A1 and the port B1 of the first liquid control reversing valve are in front of the reversing valve, the first liquid control reversing valve does not reverse, and when the port B1 and the port B2 are in front of the reversing valve, the first liquid control reversing valve is given the signal oil of the shuttle valve to give the liquid control oil.

[0011] Further, the shuttle valve takes the signal oil to the sequence valve, reaches the pressure at which the sequence valve is opened, the second liquid control reversing valve and the third liquid control reversing valve reverse, and the oil cylinders connected with the interfaces C and D reverse and retreat.

[0012] Further, the inner side wall of the fixed seat is provided with two groups of symmetrical clamping grooves.

[0013] Further, one side of the clamping edge is fixedly connected with a clamping strip, and the clamping strip is clamped and connected with the clamping groove.

[0014] Further, the limiting knobs are provided in two groups, each two limiting knobs form a group, and each limiting knob is in threaded connection with the clamping edge and the fixed seat.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The two groups of first liquid control reversing valves and the shuttle valve are adopted, the internal liquid control automatic switching of the drilling machine at high and low speeds is solved, the problem that the speed of the drilling machine is intelligently and seamlessly switched is met, when the motor pressure increases to a certain pressure, the advancing oil cylinder senses the signal through the hydraulic element, the oil cylinder retreats, the same equipment can more flexibly cope with various complex situations, when the drilling machine drills, the control valve can automatically switch the high and low speed of the drilling motor according to actual needs, so that the drilling machine works efficiently, and the control valve has the characteristics of easy operation, stability and reliability, corrosion resistance and long service life. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic view of the utility model;

[0019] Figure 2 It is a schematic view of the control valve of the utility model;

[0020] Figure 3 It is a schematic view of the side of the control valve of the utility model;

[0021] Figure 4 It is a schematic view of the side view of the utility model.

[0022] Explanation of reference numerals in the drawing:

[0023] 1, valve body; 2, liquid control reversing valve one; 3, shuttle valve; 4, sequence valve; 5, liquid control reversing valve two; 6, fixed seat; 7, clamping seat; 8, clamping edge; 9, mounting head; 10, limit knob; 11, liquid control reversing valve three; 12, port A1; 13, port A2; 14, port B1; 15, port B2; 16, interface C; 17, interface D. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Embodiment:

[0026] Please refer to Figures 1-4 A kind of for drilling rig punch quick and slow control valve, including valve body 1, liquid control reversing valve one 2 is installed on one side of valve body 1, and liquid control reversing valve two 5 and shuttle valve 3 are arranged on the left side surface of valve body 1 from left to right, sequence valve 4 is installed in the middle position of liquid control reversing valve two 5 and shuttle valve 3, liquid control reversing valve three 11 is installed on the right side surface of valve body 1, and fixed seat 6 is fixedly connected above valve body 1, clamping seat 7 is installed in the inner side of fixed seat 6, clamping edge 8 is fixedly connected on one side of clamping seat 7, clamping edge 8 and limit knob 10 are used for clamping seat 7, and mounting head 9 is fixedly connected in the upper middle position of clamping seat 7, mounting head 9 is used for installing valve body 1, limit knob 10 is screw-connected in the inner side of clamping edge 8, port A1 / 12, port A2 / 13, port B1 / 14 and port B2 / 15 are installed from below to above in the bottom of valve body 1, port A1 / 12, port A2 / 13, port B1 / 14 and port B2 / 15 are used for reversing valve oil inlet, interface C 16 is installed on the side of valve body 1 away from liquid control reversing valve three 11, interface D 17 is arranged in the right upper corner position of interface C 16, interface C 16 and interface D 17 are used for connecting external oil cylinder.

[0027] Please refer to Figure 1 And Figure 2 Liquid control reversing valve one 2 and shuttle valve 3 are provided with two groups respectively, the structure of each group of shuttle valve 3 is consistent, by setting shuttle valve 3, the purpose of motor speed conversion can be achieved by cooperating liquid control reversing valve one 2, ensure efficient work.

[0028] Please refer to Figure 2 And Figure 3, when the oil comes to the reversing valve in front of port A1 / 12 and port B1 / 14, the liquid control reversing valve 2 does not reverse, when the oil comes to the reversing valve in front of port B1 / 14 and port B2 / 15, the liquid control reversing valve 2 is given liquid control oil reversing through the signal oil of shuttle valve 3, and the oil inlet of the reversing valve can be facilitated by setting port A1 / 12, port A2 / 13, port B1 / 14 and port B2 / 15.

[0029] Referring to Figure 1 and Figure 4 , the shuttle valve 3 takes the signal oil to the sequence valve 4, reaches the opening pressure of the sequence valve 4, and the liquid control reversing valve 2 and the liquid control reversing valve 3 reverse, and the oil cylinder connected to interface C16 and interface D17 reverses and retreats, and the external oil cylinder can be connected by setting interface C16 and interface D17.

[0030] Referring to Figure 1 , the inner side wall of the fixed seat 6 is provided with two groups of symmetrical clamping grooves, and the valve body 1 can be installed by setting the fixed seat 6 in cooperation with the clamping seat 7.

[0031] Referring to Figure 1 , the clamping edge 8 is fixedly connected with a clamping strip on one side, and the clamping strip is clamped and connected with the clamping groove, and the clamping seat 7 can be quickly disassembled by setting the clamping strip and the clamping groove.

[0032] Referring to Figure 1 , the limiting knob 10 is provided with two groups, each two limiting knobs 10 form a group, and each limiting knob 10 is threadedly connected with the fixed seat 6 and the clamping edge 8, and the clamping seat 7 can be clamped by setting the clamping edge 8 and the limiting knob 10.

[0033] In use: when the oil comes to the reversing valve in front of port A1 / 12 and port B1 / 14, the liquid control reversing valve 2 does not reverse, when the oil comes to the reversing valve in front of port B1 / 14 and port B2 / 15, the liquid control reversing valve 1 is given liquid control oil reversing through the signal oil of shuttle valve 3, at this time the amount of oil into the motor is switched, so as to achieve the purpose of motor speed conversion, and ensure efficient work, when the pressure increases to a certain degree during the motor work, the signal oil of shuttle valve 3 is taken to sequence valve 4, reaches the opening pressure of sequence valve 4, at the same time, the liquid control reversing valve 2 and the liquid control reversing valve 3 reverse, and the oil cylinder connected to interface C16 and interface D17 reverses and retreats, that is, the drilling rig can sense the hardness of the drilling medium by controlling the valve group, intelligently retreats the matched push cylinder, avoids the problem of broken drill bit, and ensures efficient work of the drilling rig, and has the characteristics of easy operation, stable and reliable, corrosion resistance and long service life.

[0034] Finally should be explained is: in the description of the utility model, it is to be explained that, the term "vertical", "upper", "lower", "horizontal" and so on indicate the position relation or location relation is based on the position relation or location relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation structure and operation, therefore can not be understood as the limitation of the utility model.

[0035] In the description of the utility model, it is to be explained that, unless otherwise explicitly provided and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected, can be mechanically connected, can also be electrically connected, can be directly connected, can also be indirectly connected through an 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 the specific circumstances.

[0036] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled in the art in the technical range disclosed by the utility model, according to the technical scheme of the utility model and its improvement concept, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A kind of for rig punch quick and slow control valve, including valve body (1), one side of the valve body (1) is equipped with hydraulic control reversing valve one (2), and the left side of valve body (1) is provided with hydraulic control reversing valve two (5) and shuttle valve (3) from left to right respectively, it is characterized by: The intermediate position of the liquid control reversing valve two (5) and shuttle valve (3) is provided with a sequence valve (4), the right side of the valve body (1) is provided with a liquid control reversing valve three (11), and the upper side of the valve body (1) is fixedly connected with a fixed seat (6), the inner side of the fixed seat (6) is provided with a clamping seat (7), one side of the clamping seat (7) is fixedly connected with a clamping edge (8), and the upper middle position of the clamping seat (7) is fixedly connected with a mounting head (9), the inner side of the clamping edge (8) is threadedly connected with a limiting knob (10), the bottom of the valve body (1) is provided with a port A1 (12), a port A2 (13), a port B1 (14) and a port B2 (15) from bottom to top, respectively, the side of the valve body (1) away from the liquid control reversing valve three (11) is provided with an interface C (16), and the upper right corner of the interface C (16) is provided with an interface D (17).

2. A quick and slow control valve for a drilling rig punch according to claim 1, characterized in that: The liquid control reversing valve one (2) and the shuttle valve (3) are provided with two groups respectively, and the structure of each group of shuttle valves (3) is consistent.

3. A quick and slow control valve for a drilling rig punch according to claim 1, characterized in that: When the reversing valve of the liquid control reversing valve one (2) is supplied with oil at the front end of the port A1 (12) and the port B1 (14), the liquid control reversing valve one (2) does not reverse, when the reversing valve of the liquid control reversing valve one (2) is supplied with oil at the front end of the port B1 (14) and the port B2 (15), the liquid control reversing valve one (2) is given liquid control oil reversing through the signal oil of the shuttle valve (3).

4. A quick and slow control valve for a drilling rig punch according to claim 1, characterized in that: The shuttle valve (3) takes signal oil to the sequence valve (4), reaches the opening pressure of the sequence valve (4), the liquid control reversing valve two (5) and the liquid control reversing valve three (11) reverse, and the oil cylinder connected with the interface C (16) and the interface D (17) reverses and retreats.

5. A fast and slow control valve for a drilling rig punch according to claim 1, characterized in that: The inner side wall of the fixed seat (6) is provided with two groups of symmetrical clamping grooves.

6. A fast and slow control valve for a drilling rig punch according to claim 5, characterized in that: One side of the clamping edge (8) is fixedly connected with a clamping strip, and the clamping strip is clamped and connected with the clamping groove.

7. A fast and slow control valve for a drilling rig punch according to claim 1, characterized in that: The limiting knob (10) is provided with two groups, each two limiting knobs (10) form a group, and each limiting knob (10) is threadedly connected with the fixed seat (6) penetrating the clamping edge (8).

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