Composite linkage multi-way reversing valve of full-hydraulic drilling machine

Abstract

The utility model provides a composite linkage multi-way reversing valve of an all-hydraulic drilling machine. A first reversing valve used for controlling a clamp holder to clamp and a second reversing valve used for controlling the clamp holder to be opened are arranged in a valve body. The first reversing valve is connected with the second reversing valve through a first oil duct; the first reversing valve is linked with a first shuttle valve, and the first shuttle valve is communicated with a clamping oil duct of the clamp holder and a first oil return duct; the second reversing valve is communicated with the holder to open the oil duct; the first reversing valve is connected with a first oil supply system; the hydraulic chuck further comprises a chuck oil duct which is connected with a second oil supply system. The chuck oil duct is communicated with the first oil duct through a second oil duct, and the second oil duct is provided with a first one-way valve; the chuck oil duct is communicated with a second oil return duct through a second one-way valve; a linkage oil channel is arranged between the first shuttle valve and the second one-way valve and further communicates with the first reversing valve. By arranging the linkage oil duct, synchronous linkage of opening of the chuck and clamping of the clamp holder is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic multipath valve technical field, especially a full hydraulic drilling rig composite linkage multipath reversing valve. BACKGROUND

[0002] The full hydraulic drilling rig in the tunnel is mainly applied to the excavation and support of the coal mine in the tunnel, in order to guarantee the stable fixing of the drill rod, and the clamping device and chuck usually work cooperatively. In the work, the chuck needs to be opened when the clamping device is clamped, and the chuck needs to be clamped when the clamping device is opened, but the clamping of the clamping device is mainly realized through the elastic force of the butterfly spring at present, and there is no hydraulic linkage with the opening of the chuck, and the clamping of the clamping device has a direct relationship with the hydraulic pressure, the oil return speed and the like of the opening end of the clamping device, leading to the problem that the clamping of the clamping device and the opening of the chuck are not synchronous. SUMMARY

[0003] The utility model discloses a full hydraulic drilling rig composite linkage multipath reversing valve is provided to solve the problem that the clamping of the clamping device and the opening of the chuck are not synchronous.

[0004] The utility model discloses a full hydraulic drilling rig composite linkage multipath reversing valve, including the valve body, the valve body includes: the first reversing valve for controlling the clamping device clamping, and the second reversing valve for controlling the clamping device opening, the first reversing valve is connected with the second reversing valve through the first oil way,

[0005] The first reversing valve is linked with the first shuttle valve, and the first shuttle valve is communicated with the clamping device clamping oil way.

[0006] The first reversing valve is connected with the first oil supply system.

[0007] The utility model discloses a full hydraulic drilling rig composite linkage multipath reversing valve, including the valve body, the valve body includes: the first reversing valve for controlling the clamping device clamping, and the second reversing valve for controlling the clamping device opening, the first reversing valve is connected with the second reversing valve through the first oil way,

[0008] The second oil way is equipped with the first check valve.

[0009] The utility model discloses a full hydraulic drilling rig composite linkage multipath reversing valve, including the valve body, the valve body includes: the first reversing valve for controlling the clamping device clamping, and the second reversing valve for controlling the clamping device opening, the first reversing valve is connected with the second reversing valve through the first oil way, The utility model discloses a full hydraulic drilling rig composite linkage multipath reversing valve, including the valve body, the valve body includes: the first reversing valve for controlling the clamping device clamping, and the second reversing valve for controlling the clamping device opening, the first reversing valve is connected with the second reversing valve through the first oil way,

[0010] In some possible implementations, the valve body further comprises: a third directional valve for controlling rotation of the power head; and a fourth directional valve for controlling pushing and pulling of the drilling tool.

[0011] The third directional valve and the fourth directional valve are supplied with oil by the first oil supply system.

[0012] The valve body comprises detachably connected rotation valve plates and pushing and pulling valve plates; the third directional valve is arranged on the rotation valve plates, and the fourth directional valve is arranged on the pushing and pulling valve plates.

[0013] In some possible implementations, the third directional valve is provided with a first overload protection valve group; and the third directional valve is connected to a transition valve group, and the transition valve group is used for adjusting the rotation speed of the power head.

[0014] The valve body comprises detachably connected transition valve plates, and the transition valve group is arranged on the transition valve plates.

[0015] In some possible implementations, a fifth directional valve is further included, and the fifth directional valve is connected to the second oil supply system.

[0016] The fifth directional valve is a two-position six-way valve or a three-position six-way valve.

[0017] When the fifth directional valve is a two-position six-way valve, the fifth directional valve is used for adjusting the tilt angle of the power head.

[0018] When the fifth directional valve is a three-position six-way valve, the fifth directional valve is used for assisting in oil supply of the third directional valve and / or the fourth directional valve.

[0019] The valve body comprises detachably connected auxiliary switching valve plates, and the fifth directional valve is arranged on the auxiliary switching valve plates.

[0020] In some possible implementations, the first oil supply system comprises a first oil inlet and a first overflow valve; the first oil inlet is connected to a first oil inlet channel, and the first oil inlet channel is used for supplying oil to the first directional valve, the second directional valve, the third directional valve and the fourth directional valve.

[0021] The valve body comprises detachably connected first oil inlet valve plates, and the first oil supply system is arranged on the first oil inlet valve plates.

[0022] In some possible implementations, the second oil supply system comprises a second oil inlet and a second oil inlet channel connected to the second oil inlet.

[0023] The second oil inlet channel is connected to the fifth directional valve and the sixth directional valve.

[0024] In some possible implementation manners, the second oil inlet channel is further provided with a pressure reducing valve, a second overflow valve and a third overflow valve.

[0025] In some possible implementation manners, the valve body comprises a second oil inlet valve plate connected detachably, and the second oil supply system is arranged on the second oil inlet valve plate.

[0026] In some possible implementation manners, the second oil return channel is provided with a throttle valve.

[0027] In some possible implementation manners, the valve body comprises a composite valve plate connected detachably, and the first reversing valve and the second reversing valve are arranged on the composite valve plate. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall hydraulic principle of the multi-way reversing valve of the present application;

[0029] Figure 2 is a schematic diagram of the hydraulic principle of the composite valve plate of the present application;

[0030] Figure 3 is a schematic diagram of the hydraulic principle of the rotary valve plate of the present application;

[0031] Figure 4 is a schematic diagram of the hydraulic principle of the second oil inlet valve plate of the present application;

[0032] Figure 5 is a schematic diagram of the hydraulic principle of the transition valve plate of the present application;

[0033] Figure 6 is a schematic diagram of the overall appearance of the multi-way reversing valve of the present application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0035] To facilitate understanding of the composite linkage multi-way reversing valve of the full hydraulic drilling rig provided by the present application, the application scenario thereof is first described. The composite linkage multi-way reversing valve of the full hydraulic drilling rig of the present application is suitable for a gallery full hydraulic drilling rig, which is mainly applied to excavation and support operations in a coal mine gallery. The composite linkage multi-way reversing valve of the full hydraulic drilling rig of the present application is used to control the related actions of components such as a gripper, a chuck and a power head of the gallery full hydraulic drilling rig. The composite linkage multi-way reversing valve of the present application realizes full hydraulic control of the gallery full hydraulic drilling rig, i.e., the gripper is opened, the chuck is clamped and the power head is advanced when drilling, and the gripper is clamped, the chuck is opened and the power head is retracted when withdrawing, thereby establishing linkage function.

[0036] Referring to Figures 1-6 The application provides a full hydraulic drilling machine composite linkage multi-way reversing valve, comprising a valve body 1. Referring to Figure 1 、 Figure 2 The valve body 1 comprises a first reversing valve 21 for controlling the clamping of a clamp and a second reversing valve 22 for controlling the opening of the clamp; the first reversing valve 21 and the second reversing valve 22 are connected through a first oil channel 31. The first shuttle valve 23 is connected to a clamp clamping oil channel 32. The second reversing valve 22 is connected to a clamp opening oil channel 34, and the first reversing valve 21 is connected to a first oil supply system.

[0037] As an example, the first reversing valve 21 in the embodiment can be a three-position five-way valve, and the second reversing valve can be a two-position three-way valve.

[0038] In order to realize the synchronous operation of the chuck clamping and the clamp opening, the application is provided with a chuck oil channel 35 connected to a second oil supply system; the chuck oil channel 35 is connected to the first oil channel 31 through a second oil channel 36, and the second oil channel 36 is provided with a first one-way valve 24. Since the second reversing valve 22 is connected to the clamp opening oil channel 34, when the first reversing valve 21 supplies oil to the second reversing valve 22 through the first oil channel 31, the clamp opening oil channel 34 enters high-pressure oil, and the clamp is opened. At the same time, since the first oil channel 31 is connected to the chuck oil channel 35 through the second oil channel 36. When the clamp is opened, the second oil channel 36 synchronously supplies oil to the chuck oil channel 35, and the chuck is clamped.

[0039] In order to realize the synchronous operation of the chuck opening and the clamp clamping, the chuck oil channel 35 of the application is connected to a second oil return channel 37 through a second one-way valve 25. A linkage oil channel 38 is arranged between the first shuttle valve 23 and the second one-way valve 25, and the linkage oil channel 38 is also connected to the first reversing valve 21. When the clamp is clamped, the first reversing valve 21 synchronously supplies oil to the first shuttle valve 23 and the second one-way valve 25 through the linkage oil channel 38. As an example, the second one-way valve 25 in the embodiment is a hydraulic control one-way valve. When high-pressure oil enters the linkage oil channel 38, the clamp clamping oil channel 32 enters high-pressure oil, and the clamp is clamped. At the same time, the second one-way valve 25 is opened, the second oil return channel 37 is in a pass-through state, and the high-pressure oil in the chuck oil channel 35 flows out through the second oil return channel 37, and the chuck is opened.

[0040] In the above scheme, by arranging the linkage oil channel 38 between the first shuttle valve 23 and the second oil return channel 37, the first reversing valve 21 supplies oil to the clamp clamping oil channel 32 and the second one-way valve 25 through the linkage oil channel 38 when the drill is withdrawn. On the one hand, the second one-way valve 25 is opened, the hydraulic oil in the chuck oil channel 35 flows out through the second oil return channel 37, and the chuck is opened; on the other hand, the clamp is clamped. The synchronous action of the clamp clamping and the chuck opening when the drill is withdrawn is realized.

[0041] In some optional embodiments, referring to Figure 1 , the valve body 1 further comprises: a third reversing valve 41 for controlling the rotation of the power head; and a fourth reversing valve 42 for controlling the pushing and pulling of the drilling tool.

[0042] As an example, the third reversing valve 41 in this embodiment can be a three-position six-way valve, and the fourth reversing valve 42 can be a three-position six-way valve. The third reversing valve 41 and the fourth reversing valve 42 are supplied with oil by the first oil supply system. In this embodiment, the first oil supply system comprises a first oil supply channel 51, through which the third reversing valve 41 and the fourth reversing valve 42 are supplied with oil.

[0043] For the convenience of processing, the valve body 1 in this embodiment is a combined valve body, which comprises a rotary valve plate 11 and a pushing and pulling valve plate 12 that are detachably connected. The third reversing valve 41 is arranged on the rotary valve plate 11, and the fourth reversing valve 42 is arranged on the pushing and pulling valve plate 12.

[0044] It should be noted that in this embodiment, the A1 interface and the B1 interface are arranged on the valve body 1, and the A1 interface and the B1 interface are directly or indirectly connected with the third reversing valve 41 to realize the control of the rotation of the power head. The A3 interface and the B3 interface are arranged on the valve body 1, and the A3 interface and the B3 interface are directly or indirectly connected with the fourth reversing valve 42 to realize the control of the pushing and pulling of the drilling tool.

[0045] In order to realize the overload protection of the pushing and pulling function, as an example, an overflow valve is arranged in the oil channel of the fourth reversing valve 42 and the A3 interface and the B3 interface.

[0046] In some optional embodiments, referring to Figure 3 , Figure 5 , the third reversing valve 41 is provided with a first overload protection valve group. The third reversing valve 41 is connected with a transition valve group 6, and the transition valve group 6 is used to adjust the rotation speed of the power head. As an example, the structure of the first overload protection valve group refers to Figure 3 , which comprises two overflow valves 43. For the convenience of description, the oil channel between the third reversing valve 41 and the A1 interface is named as the third oil channel, and the oil channel between the third reversing valve 41 and the B1 interface is named as the fourth oil channel, wherein the two overflow valves 43 are respectively connected to the third oil channel and the fourth oil channel for overload protection. When the overload occurs, the high-pressure oil is connected to the oil return channel through the overflow valve 43. The transition valve group 6 refers to Figure 5The transition valve group 6 includes two one-way throttle valves 61 arranged in the third oil passage and the fourth oil passage, respectively. That is, the one-way valve is combined with the throttle valve, the fluid flow direction is controlled by the one-way valve, and the fluid flow is adjusted by the throttle valve, so as to adjust the rotating speed of the power head. The transition valve group 6 further includes a second shuttle valve 62 arranged between the third oil passage and the fourth oil passage, and the flow direction and pressure of the hydraulic oil are further controlled by the second shuttle valve 62.

[0047] In order to facilitate processing, the valve body 1 in the embodiment is a combined valve body, which includes a detachable transition valve plate 13, and the transition valve group 6 is arranged in the transition valve plate 13. Since the third switching valve 41 in the embodiment is connected with the power head through the transition valve group 6, the A1 interface and the A2 interface connected with the power head are arranged on the transition valve plate 13.

[0048] In some optional embodiments, referring to Figure 1 , the fifth switching valve 44 is further arranged, and the fifth switching valve 44 is connected with the second oil supply system. The fifth switching valve 44 can have two functions, one of which is to adjust the inclination angle of the power head, and the other of which is to supply oil to other switching valves. When different functions are selected, different switching valves need to be correspondingly arranged, which can be two-position six-way valves or three-position six-way valves.

[0049] When the fifth switching valve 44 is a two-position six-way valve, the fifth switching valve 44 is used to adjust the inclination angle of the power head, and only the B2 interface is arranged on the valve body 1. When the fifth switching valve 44 is a three-position six-way valve, the fifth switching valve 44 is used to supply oil to the third switching valve and / or the fourth switching valve, and the A2 interface and the B2 interface are arranged on the valve body 1.

[0050] In order to facilitate processing, the valve body 1 in the embodiment is a combined valve body, which includes a detachable auxiliary switching valve plate 14, and the fifth switching valve 44 is arranged in the auxiliary switching valve plate 14.

[0051] In some optional embodiments, in order to meet the oil supply requirement, two sets of oil supply systems are arranged, including a first oil supply system and a second oil supply system. The first oil supply system is a main oil supply system, and the second oil supply system is an auxiliary oil supply system. Referring to Figure 1 , the first oil supply system includes a first oil inlet 52 and a first overflow valve 53. The first oil inlet 52 is connected with a first oil inlet passage 51, and the first oil inlet passage 51 is used to supply oil to the first switching valve 21, the second switching valve 22, the third switching valve 41 and the fourth switching valve 42. The valve body 1 includes a detachable first oil inlet valve plate 15, and the first oil supply system is arranged in the first oil inlet valve plate 15.

[0052] Referring to Figure 1 ,Figure 4 The second oil supply system comprises a second oil inlet 71 and a second oil inlet channel 72 in communication with the second oil inlet 71. The second oil inlet channel 72 is in communication with the fifth directional valve 44 and the sixth directional valve 45, and the second oil supply system is used for supplying oil to the fourth directional valve 42. As an example, the sixth directional valve can be a two-position three-way valve.

[0053] In order to facilitate processing, the valve body 1 in the embodiment is a combined valve body, the valve body 1 comprises a detachably connected second oil inlet valve plate 16, and the second oil supply system is arranged in the second oil inlet valve plate 16.

[0054] In some optional embodiments, in order to achieve stable oil supply effect, the second oil inlet channel 72 is further provided with a pressure reducing valve 73, a second overflow valve 74 and a third overflow valve 75. The third overflow valve 75 is used for speed regulation, and the pressure reducing valve 73 is used for facilitating speed regulation after pressure reduction. The second overflow valve 74 is used for overload protection.

[0055] In some optional embodiments, the second oil return channel 37 is provided with a throttle valve 26, and the oil return speed is adjusted by arranging the throttle valve 26.

[0056] In some optional embodiments, in order to realize synchronous control of the gripper and the chuck, the oil paths connected with the gripper and the chuck are closely related. In order to facilitate installation, the valve body 1 in the application comprises a detachably connected composite valve plate 17, the first directional valve 21 and the second directional valve 22 are arranged in the composite valve plate 17. The composite valve plate 17 is correspondingly provided with an A4 interface, a B4 interface for connecting the gripper, and an A5 interface for connecting the chuck.

[0057] It should be noted that in the application Figure 1 P1 and P2 are oil inlet interfaces, T1 and T2 are oil return interfaces, and G1, G2 and G3 are pressure measuring interfaces. In order to realize control of the hydraulic oil flow direction, a plurality of one-way valves are arranged in the application, and the liquid flow direction is controlled by arranging the one-way valves in the liquid path, which is a conventional technology, and will not be described here.

[0058] In the description of the utility model, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, structure and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0059] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication。For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A full hydraulic drilling rig compound linkage multi-way reversing valve comprising a valve body, characterized in that, The valve body comprises a first reversing valve for controlling the clamping of the clamp and a second reversing valve for controlling the opening of the clamp; the first reversing valve is connected with the second reversing valve through a first oil channel; The first reversing valve is connected with a first shuttle valve, and the first shuttle valve is connected with a clamp clamping oil channel; the second reversing valve is connected with a clamp opening oil channel; The first reversing valve is connected with a first oil supply system; A chuck oil channel is further provided, the chuck oil channel is connected with a second oil supply system; the chuck oil channel is connected with the first oil channel through a second oil channel, and the second oil channel is provided with a first one-way valve; The chuck oil channel is connected with a second oil return channel through a second one-way valve; a linkage oil channel is arranged between the first shuttle valve and the second one-way valve, and the linkage oil channel is further connected with the first reversing valve.

2. The full hydraulic drilling rig complex gang multi-way directional valve according to claim 1, characterized in that, The valve body further comprises a third reversing valve for controlling the rotation of the power head and a fourth reversing valve for controlling the pushing and pulling of the drilling tool; The third reversing valve and the fourth reversing valve are supplied with oil through the first oil supply system; The valve body comprises a detachable rotary valve plate and a pushing and pulling valve plate; the third reversing valve is arranged on the rotary valve plate, and the fourth reversing valve is arranged on the pushing and pulling valve plate.

3. The full hydraulic drilling rig complex gang multi-way directional valve according to claim 2, characterized in that, The third reversing valve is provided with a first overload protection valve group; the third reversing valve is connected with a transition valve group, and the transition valve group is used for adjusting the rotating speed of the power head; The valve body comprises a detachable transition valve plate, and the transition valve group is arranged on the transition valve plate.

4. The full hydraulic drilling rig complex gang multi-way directional valve according to claim 3, characterized in that, A fifth reversing valve is further provided, and the fifth reversing valve is connected with the second oil supply system; The fifth reversing valve is a two-position six-way valve or a three-position six-way valve; When the fifth reversing valve is a two-position six-way valve, the fifth reversing valve is used for adjusting the inclination angle of the power head; When the fifth reversing valve is a three-position six-way valve, the fifth reversing valve is used for assisting the oil supply of the third reversing valve and / or the fourth reversing valve; The valve body comprises a detachable auxiliary switching valve plate, and the fifth reversing valve is arranged on the auxiliary switching valve plate.

5. The full hydraulic drilling rig compound linkage multiple way directional valve according to claim 2, characterized in that, The first oil supply system comprises a first oil inlet and a first overflow valve; the first oil inlet is connected with a first oil inlet channel, and the first oil inlet channel is used for supplying oil to the first reversing valve, the second reversing valve, the third reversing valve and the fourth reversing valve; The valve body comprises a detachable first oil inlet valve plate, and the first oil supply system is arranged on the first oil inlet valve plate.

6. The full hydraulic drilling rig compound linkage multiple way directional valve according to claim 4, characterized in that, The second oil supply system comprises a second oil inlet and a second oil inlet channel connected with the second oil inlet; The second oil inlet channel is connected with the fifth reversing valve and a sixth reversing valve.

7. The full hydraulic drilling rig composite gang multi-way directional valve according to claim 6, characterized in that, The second oil inlet channel is further provided with a pressure reducing valve, a second overflow valve and a third overflow valve.

8. The full hydraulic drilling rig composite gang multi-way directional valve according to claim 7, characterized in that, The valve body comprises a detachable second oil inlet valve plate, and the second oil supply system is arranged on the second oil inlet valve plate.

9. The full- hydraulic rig composite gang multi-way directional valve of claim 1, wherein, The second oil return channel is provided with a throttle valve.

10. The full- hydraulic rig composite gang multi-way directional valve of claim 1, wherein, The valve body comprises a detachable composite valve plate, and the first reversing valve and the second reversing valve are arranged on the composite valve plate.

Images