Novel logic control multi-way reversing valve module for drilling machine

Abstract

The invention relates to a novel logic control multi-way reversing valve module for a drilling machine. According to the novel logic control multi-way reversing valve module for the drilling machine, switching of a single-action working mode and a linkage working mode of a pushing and pulling oil cylinder, a clamping device and a chuck of the drilling machine can be achieved. And in the single-action working mode, the second reversing link controls the third reversing link to be in the middle position, at the moment, the fourth reversing link and the fifth reversing link are controlled to conduct reversing, single-action actions of the clamping device and the chuck can be achieved, and single-action actions of the pushing and pulling oil cylinder are controlled through the first reversing link. In the linkage working mode, the second reversing link directly communicates an oil inlet path and an oil return path of the pushing and pulling oil cylinder with hydraulic control ports in the two sides of the third reversing link, so that the third reversing link is reversed to the a position or the b position from the middle position, the pushing and pulling oil cylinder is associated with the actions of the clamping device and the chuck, and the clamping device and the chuck are driven to move. Therefore, the purpose of linkage action of the three parts is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-way valves, and in particular to a novel logic-controlled multi-way directional valve module for a drilling rig. Background Art

[0002] In the drilling process, the movements of the chuck and the clamp of the main power head can be designed as single-action or linkage operation. If it is designed as a single-action operating system, during actual drilling, while operating the reversing of the push-pull cylinder handle, it is necessary to repeatedly operate different handles to individually control the loosening or clamping of the clamp and chuck. The drilling efficiency is low and there is a risk of misoperation. However, when the drilling rig fails, relying on a single operation can quickly analyze the cause of the failure and save troubleshooting time. If it is designed as a linkage operating system, the movements of the clamp and chuck can be linked during actual drilling. It only needs to operate the reversing of the push-pull cylinder handle to realize the linkage logic action of the push-pull cylinder, chuck and clamp. The drilling efficiency is improved compared to the single-action operating system, but when the drilling rig fails, the linkage action will make troubleshooting more difficult.

[0003] At present, existing main machines have achieved the combination of single-acting and linkage operating systems by adding an integrated block to the control valve, but this will increase the size of the main valve, making the main valve oil circuit more complicated and the degree of integration low. At the same time, it will increase the size of the control panel and the size of the machine body. However, the actual construction tunnel space is limited, resulting in reduced flexibility of the drilling rig during construction, and even inability to construct in narrow tunnel workstations. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a novel logic-controlled multi-way reversing valve module for a drilling rig.

[0005] The novel logic-controlled multi-way reversing valve module for drilling rig disclosed in the present invention comprises a first reversing link, a second reversing link, a third reversing link, a fourth reversing link, and a fifth reversing link; The first reversing link is configured to control the piston rod of the propulsion and extraction cylinder to retract by connecting the first oil inlet circuit P1 of the system to the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and extraction cylinder of the drilling rig, and connecting the first oil return circuit T1 of the system to the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and extraction cylinder of the drilling rig, or to control the piston rod of the propulsion and extraction cylinder to extend by connecting the first oil inlet circuit P1 of the system to the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and extraction cylinder of the drilling rig, and connecting the first oil return circuit T1 of the system to the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and extraction cylinder of the drilling rig; The second reversing link is configured to control the switching of the single-action and linkage working modes of the clamper and the chuck; When the second reversing link is in the middle position, it is a single-action working mode, and the second oil inlet circuit P2 of the system is connected with the hydraulic control ports on both sides of the third reversing link through the second reversing link, so that the third reversing link is in the middle position, and when the fourth reversing link and the fifth reversing link arranged in parallel are also in the middle position, the second oil inlet circuit P2 of the system is connected with the oil circuit of the A2 oil port corresponding to the spring side working oil chamber of the clamp through the third reversing link, and the second oil return circuit T2 of the system is connected with the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber of the clamp through the third reversing link, and the second oil inlet circuit P2 of the system is connected with the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck of the drilling rig through the third reversing link. At this time, the clamp is clamped and the chuck is clamped; In the single-action working mode, when the fourth reversing link and the fifth reversing link are arbitrarily switched to position a or position b, one of the oil circuit of the A2 oil port corresponding to the spring side working oil chamber of the clamp and the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber is directly connected to the second oil inlet circuit P2 of the system, and the other is directly connected to the second oil return circuit T2 of the system to control the clamping or loosening of the clamp, and the second oil inlet circuit P2 of the system or the second oil return circuit T2 of the system is directly connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck to control the clamping or loosening of the chuck; When the second reversing link is in position a or b, it is a linkage working mode, controlling the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and pulling oil cylinder to be connected to the hydraulic control port on one side of the third reversing link, and the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and pulling oil cylinder to be connected to the hydraulic control port on the other side of the third reversing link, so that the third reversing link is in position a or b, and when the fourth reversing link and the fifth reversing link are also in the middle position, the second oil inlet oil circuit P2 of the system and the system One of the second oil return oil circuit T2 of the system is connected to the oil circuit of the A2 oil port corresponding to the spring side working oil chamber of the clamp through the third reversing connection, and the other is connected to the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber through the third reversing connection to control the clamp to clamp or release, and the second oil inlet oil circuit P2 of the system or the second oil return oil circuit T2 of the system is connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck through the third reversing connection to control the clamp to clamp or release; In the linkage working mode, when the fourth reversing link and the fifth reversing link are switched to position a or position b, one of the oil circuits of the A2 oil port corresponding to the spring side working oil chamber of the clamp and the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber is directly connected to the second oil inlet circuit P2 of the system, and the other is directly connected to the second oil return circuit T2 of the system to control the clamping or loosening of the clamp, and the second oil inlet circuit P2 of the system or the second oil return circuit T2 of the system is directly connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck to control the clamping or loosening of the chuck.

[0006] In one embodiment, in the linkage working mode, the first reversing link is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the A1 oil port corresponding to the rod chamber of the thrust and lifting cylinder, and when the first oil return circuit T1 of the system is connected with the oil circuit of the B1 oil port corresponding to the rodless chamber of the thrust and lifting cylinder, the piston rod contracts, and when the second reversing link is configured to be in position a, the third reversing link is in position a, and the fourth reversing link and the fifth reversing link are in the middle position, the second oil inlet circuit P2 of the system is connected with the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber of the clamp through the third reversing link, the second oil return circuit T2 of the system is connected with the oil circuit of the A2 oil port corresponding to the spring side working oil chamber of the clamp through the third reversing link, the clamp is released, the second oil inlet circuit P2 of the system is connected with the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck through the third reversing link, and the chuck is clamped.

[0007] In one embodiment, in the linkage working mode, the first reversing link is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the A1 oil port corresponding to the rod chamber of the thrust and pulling cylinder, and when the first oil return circuit T1 of the system is connected with the oil circuit of the B1 oil port corresponding to the rodless chamber of the thrust and pulling cylinder, the piston rod of the thrust and pulling cylinder contracts, and when the second reversing link is configured to be in position b, the third reversing link is in position b, and the fourth reversing link and the fifth reversing link are in the middle position, the second oil inlet circuit P2 of the system is connected with the oil circuit of the A2 oil port corresponding to the spring side working oil chamber of the clamp through the third reversing link, the second oil return circuit T2 of the system is connected with the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber of the clamp through the third reversing link, the clamp is clamped, the second oil return circuit T2 of the system is connected with the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck, and the chuck is released.

[0008] In one embodiment, in the linkage working mode, the first reversing link is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the B1 oil port corresponding to the rodless chamber of the thrust and pulling cylinder, and when the first oil return circuit T1 of the system is connected with the oil circuit of the A1 oil port corresponding to the rod chamber of the thrust and pulling cylinder, the piston rod of the thrust and pulling cylinder extends, and when the second reversing link is configured to be in position a, the third reversing link is in position b, and the fourth reversing link and the fifth reversing link are in the middle position, the second oil inlet circuit P2 of the system is connected with the oil circuit of the A2 oil port corresponding to the working oil chamber on the spring side of the clamper through the third reversing link, the second oil return circuit T2 of the system is connected with the oil circuit of the B2 oil port corresponding to the working oil chamber on the non-spring side of the clamper through the third reversing link, the clamper is clamped, the second oil return circuit T2 of the system is connected with the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck, and the chuck is released.

[0009] In one embodiment, in the linkage working mode, the first reversing link is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the B1 oil port corresponding to the rodless chamber of the thrust and lifting cylinder, and when the first oil return circuit T1 of the system is connected with the oil circuit of the A1 oil port corresponding to the rod chamber of the thrust and lifting cylinder, the piston rod of the thrust and lifting cylinder extends, and when the second reversing link is configured to be in position b, the third reversing link is in position a, and the fourth reversing link and the fifth reversing link are in the middle position, the second oil inlet circuit P2 of the system is connected with the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber of the clamp through the third reversing link, the second oil return circuit T2 of the system is connected with the oil circuit of the A2 oil port corresponding to the spring side working oil chamber of the clamp through the third reversing link, the clamp is released, the second oil inlet circuit P2 of the system is connected with the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck, and the chuck is clamped.

[0010] In one embodiment, in the single-action working mode or the linkage working mode, when the fourth reversing link is configured to be in position a, the second oil inlet oil circuit P2 of the system is directly connected to the oil circuit of the A2 oil port corresponding to the working oil chamber on the spring side of the clamper, and the second oil return oil circuit T2 of the system is directly connected to the oil circuit of the B2 oil port corresponding to the working oil chamber on the non-spring side of the clamper, and the clamper is clamped; When the fourth reversing link is configured to be in position b, the system's second oil inlet circuit P2 is directly connected to the oil circuit of the B2 oil port corresponding to the working oil chamber on the non-spring side of the clamp, and the system's second oil return circuit T2 is directly connected to the oil circuit of the A2 oil port corresponding to the working oil chamber on the spring side of the clamp, and the clamp is released.

[0011] In one embodiment, in the single-action working mode or the linkage working mode, when the fifth reversing link is configured to be in position a, the second oil inlet oil circuit P2 of the system is directly connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck, and the chuck is clamped; When the fifth reversing link is configured to be in position b, the second oil return circuit T2 of the system is directly connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck, and the chuck is released.

[0012] In one embodiment, at least one of the first reversing link, the second reversing link, the fourth reversing link, and the fifth reversing link is a manual reversing link.

[0013] One beneficial effect of the new logic-controlled multi-way reversing valve module for drilling rigs disclosed in the present invention is that the new logic-controlled multi-way reversing valve module for drilling rigs disclosed in the present invention can realize the switching of the propulsion and extraction cylinder, the clamp, and the chuck of the drilling rig between the single-action working mode and the linkage working mode. When in the single-action working mode, the second reversing link controls the third reversing link to be in the middle position. At this time, by controlling the reversal of the fourth reversing link and the fifth reversing link, the oil circuit connection direction of the second oil inlet circuit P2 of the system, the second oil return circuit T2 of the system and the clamp, and the chuck can be controlled, thereby achieving the purpose of controlling the single-action of the clamp and the chuck, and at this time, the first reversing link controls the oil circuit connection direction of the first oil inlet circuit P1 of the system and the first oil return circuit T1 of the system and the rod chamber and the rodless chamber of the propulsion and extraction cylinder, thereby achieving the purpose of controlling the single-action of the propulsion and extraction cylinder.

[0014] When in linkage working mode, the second reversing link switches the third reversing link from the middle position to position a or b by connecting the oil inlet and oil return lines of the thrust and pull cylinder directly with the hydraulic control oil lines on both sides of the third reversing link. That is to say, the working pressure oil in the rod chamber or rodless chamber of the thrust and pull cylinder is used to control the reversing of the third reversing link. At this time, when the fourth reversing link and the fifth reversing link arranged in parallel are both in the middle position, and through the third reversing link connected in series with the two, one of the system's second oil inlet circuit P2 and the system's second oil return circuit T2 is connected to the spring side working oil chamber of the clamp, and the other is connected to the non-spring side working oil chamber. At the same time, the system's second oil inlet circuit P2 or the system's second oil return circuit T2 is connected to the working oil chamber of the chuck, so that the control action of the clamp and the chuck is associated with the action of the thrust and pull cylinder, thereby achieving the purpose of linkage action of the three.

[0015] Therefore, the new logic-controlled multi-way reversing valve module for the drilling rig disclosed in the present invention enables the three parts of the propulsion and extraction cylinder, the clamp, and the chuck to have the advantages of single-action, which can quickly analyze the cause of the fault and save the troubleshooting time, and also has the advantages of linkage action, so that the drilling construction efficiency is improved. In addition, the single-action working mode and linkage working mode functions of the clamp and the chuck are integrated and designed into the main valve module, so that the main valve module has the advantages of compact structure, small size, low cost, etc. while realizing the large-flow design, which reduces the increase in the size of the machine body to a certain extent, reduces the auxiliary time of the drilling operation and the technical requirements for the drilling rig operator, and improves the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0017] Figure 1 It is a schematic diagram of a novel logic-controlled multi-way directional valve module for a drilling rig provided in one embodiment of the present disclosure.

[0018] Figure 1 The one-to-one correspondence between the component names and the reference numerals is as follows: 1- First reversing link: ①- First port; ②- Second port; ③- Third port; ④- Fourth port; ⑤- Fifth port; ⑥- Sixth port; 2- Second reversing link: ①- first port; ②- second port; ③- third port; ④- fourth port; ⑤- fifth port; ⑥- sixth port; 3- The third reversing link: ①- the first port; ②- the second port; ③- the third port; ④- the fourth port; ⑤- the fifth port; 4-Fourth reversing link: ①-first port; ②-second port; ③-third port; ④-fourth port; ⑤-fifth port; ⑥-sixth port; 5-Fifth reversing link: ①-first port; ②-second port; ③-third port; ④-fourth port; 6-propelling and pulling cylinder; 7-clamp; 8-chuck; P1-the first oil inlet circuit of the system; T1-the first oil return circuit of the system; P2-the second oil inlet circuit of the system; T2-the second oil return circuit of the system. DETAILED DESCRIPTION

[0019] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless otherwise specifically stated.

[0020] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0021] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0022] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0023] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0024] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0025] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0026] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0027] The existing drilling rigs realize the combination of single-acting and linkage operating systems by adding an integrated block to the main control valve, which increases the volume of the main valve. To this end, the present invention provides a new logic-controlled multi-way reversing valve module for a drilling rig.

[0028] The novel logic-controlled multi-way reversing valve module for a drilling rig comprises a first reversing unit 1, a second reversing unit 2, a third reversing unit 3, a fourth reversing unit 4 and a fifth reversing unit 5.

[0029] For ease of understanding, refer to Figure 1 , the specific structure and working principle of the new logic-controlled multi-way reversing valve module for drilling rigs disclosed in the present invention are described in detail in combination with the embodiments.

[0030] In detail, in order to facilitate clear understanding, first combine Figure 1 This article introduces the specific structure of the five commutation links and the conductive relationship between each port.

[0031] Among them, in one embodiment, the first reversing link 1 is a three-position six-way valve, its first port ① and the second port ② are both connected to the system's first oil inlet circuit P1, the third port ③ and the fourth port ④ are both connected to the system's first oil return circuit T1, the fifth port ⑤ is connected to the oil circuit of the A1 oil port corresponding to the rod chamber of the thrust and pull cylinder 6, and the sixth port ⑥ is connected to the oil circuit of the B1 oil port corresponding to the rodless chamber of the thrust and pull cylinder 6.

[0032] The second reversing link 2 is a three-position six-way valve, wherein the first port ① is connected to the oil circuit of the B1 oil port corresponding to the rodless chamber of the thrust and pull cylinder 6, the second port ② is connected to the second oil inlet circuit P2 of the system, the third port ③ is connected to the oil circuit of the A1 oil port corresponding to the rod chamber of the thrust and pull cylinder 6, the fourth port ④ is connected to the hydraulic control port on the a-position side of the third reversing link 3, the fifth port ⑤ is connected to the hydraulic control port on the b-position side of the third reversing link 3, and the sixth port ⑥ is blocked.

[0033] When the second reversing link 2 is in the middle position, the first port ①, the third port ③, and the sixth port ⑥ are all cut off, and the second port ② and the fourth port ④ and the fifth port ⑤ are all connected.

[0034] When the second reversing link 2 is in position a, the second port ② and the sixth port ⑥ are cut off, the first port ① and the fifth port ⑤ are connected, and the third port ③ and the fourth port ④ are connected.

[0035] When the second reversing link 2 is in position b, the second port ② and the sixth port ⑥ are cut off, the first port ① and the fourth port ④ are connected, and the third port ③ and the fifth port ⑤ are connected.

[0036] The third reversing link 3 is a three-position five-way valve, whose first port ① is connected to the second oil inlet circuit P2 of the system, the second port ② is connected to the second oil return circuit T2 of the system, the third port ③ is connected to the first port ① of the fourth reversing link 4, the fourth port ④ is connected to the first port ① of the fifth reversing link 5, and the fifth port ⑤ is connected to the third port ③ of the fourth reversing link 4.

[0037] When the third reversing link 3 is in the middle position, the first port ① is connected to the third port ③ and the fourth port ④, and the second port ② is connected to the fifth port ⑤.

[0038] When the third reversing link 3 is in position a, the first port ① is connected to the fourth port ④ and the fifth port ⑤, and the second port ② is connected to the third port ③.

[0039] When the third reversing link 3 is in position b, the first port ① is connected to the third port ③, and the second port ② is connected to the fourth port ④ and the fifth port ⑤.

[0040] The fourth reversing link 4 is a three-position six-way valve, wherein the first port ① is connected to the third port ③ of the third reversing link 3, the second port ② is connected to the oil port of the second oil inlet circuit P2 of the system, the third port ③ is connected to the fifth port ⑤ of the third reversing link 3, the fourth port ④ is connected to the oil port of the second oil return circuit T2 of the system, the fifth port ⑤ is connected to the A2 oil port corresponding to the spring side working oil chamber of the clamp 7, and the sixth port ⑥ is connected to the B2 oil port corresponding to the non-spring side working oil chamber of the clamp 7.

[0041] When the fourth reversing link 4 is in the middle position, the second port ② and the fourth port ④ are both cut off, the first port ① and the fifth port ⑤ are connected, and the third port ③ and the sixth port ⑥ are connected.

[0042] When the fourth reversing link 4 is in position a, the first port ① and the third port ③ are both cut off, the second port ② and the fifth port ⑤ are connected, and the fourth port ④ and the sixth port ⑥ are connected.

[0043] When the fourth reversing link 4 is in position b, the first port ① and the third port ③ are both cut off, the second port ② and the sixth port ⑥ are connected, and the fourth port ④ and the fifth port ⑤ are connected.

[0044] The fifth reversing link 5 is a three-position four-way valve, whose first port ① is connected to the fourth port ④ of the third reversing link 3, the second port ② is connected to the oil port of the second oil inlet circuit P2 of the system, the third port ③ is connected to the oil port of the second oil return circuit T2 of the system, and the fourth port ④ is connected to the A3 oil port corresponding to the working oil chamber of the chuck 8.

[0045] When the fifth reversing link 5 is in the middle position, the second port ② and the third port ③ are both cut off, and the first port ① and the fourth port ④ are connected.

[0046] When the fifth reversing link 5 is in position a, the first port ① and the third port ③ are both cut off, and the second port ② and the fourth port ④ are connected.

[0047] When the fifth reversing link 5 is in position b, the first port ① and the second port ② are both cut off, and the third port ③ and the fourth port ④ are connected.

[0048] Based on the detailed conduction or connection relationship of the above-mentioned reversing ports, oil ports, and oil circuits, the following is combined with Figure 1 The control logic of the new logic control multi-way reversing valve module of the drilling rig disclosed in the present invention in the single-action working mode and the linkage working mode is described in detail.

[0049] Control logic in single-action working mode: When the second reversing link 2 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the hydraulic control port on the a side of the third reversing link 3 through the second port ② and the fourth port ④ of the second reversing link 2, and at the same time enters the hydraulic control port on the b side of the third reversing link 3 through the second port ② and the fifth port ⑤ of the second reversing link 2, so that the third reversing link 3 is in the middle position, and the fourth reversing link 4 is in the middle position and the fifth reversing link 5 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the hydraulic control port on the b side of the third reversing link 3 through the second port ② and the fifth port ⑤ of the third reversing link 3 The first port ①, the third port ③, the first port ①, the fifth port ⑤ of the fourth reversing link 4, and the A2 oil port corresponding to the spring side working oil chamber of the clamp 7 enter the spring side working oil chamber of the clamp 7, and the oil in the non-spring side working oil chamber of the clamp 7 returns to the second oil return circuit T2 of the system through the B2 oil port corresponding to the non-spring side working oil chamber of the clamp 7, the third port ③, the sixth port ⑥ of the fourth reversing link 4, the second port ②, the fifth port ⑤ of the third reversing link 3, and the clamp 7 is clamped. At the same time, the pressure oil of the second oil inlet circuit P2 of the system enters the working oil chamber of the chuck 8 through the first port ①, the fourth port ④ of the third reversing link 3, the first port ①, the fourth port ④ of the fifth reversing link 5, and the A3 oil port corresponding to the working oil chamber of the chuck 8, and the chuck 8 is clamped.

[0050] When the second reversing link 2 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the hydraulic control port on the a-position side of the third reversing link 3 through the second port ② and the fourth port ④ of the second reversing link 2, and at the same time enters the hydraulic control port on the b-position side of the third reversing link 3 through the second port ② and the fifth port ⑤ of the second reversing link 2, so that the third reversing link 3 is reversed to the middle position, and the fourth reversing link 4 is in the a-position and the fifth reversing link 5 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the spring side working oil chamber of the clamp 7 through the second port ② and the fifth port ⑤ of the fourth reversing link 4 and the A2 oil port corresponding to the spring side working oil chamber of the clamp 7, and the oil in the non-spring side working oil chamber returns to the second oil return circuit T2 of the system through the B2 oil port corresponding to the non-spring side working oil chamber of the clamp 7, the fourth port ④ and the sixth port ⑥ of the fourth reversing link 4, and the clamp 7 is clamped. At the same time, the pressure oil of the second oil inlet circuit P2 of the system enters the working oil chamber of chuck 8 through the first port ① and the fourth port ④ of the third reversing link 3, the first port ① and the fourth port ④ of the fifth reversing link 5, and the A3 oil port corresponding to the working oil chamber of chuck 8, and chuck 8 is clamped.

[0051] When the second reversing link 2 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the hydraulic control port on the a-position side of the third reversing link 3 through the second port ② and the fourth port ④ of the second reversing link 2, and at the same time enters the hydraulic control port on the b-position side of the third reversing link 3 through the second port ② and the fifth port ⑤ of the second reversing link 2, so that the third reversing link 3 is in the middle position, and the fourth reversing link 4 is in the b position, and the fifth reversing link 5 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the non-spring side working oil chamber of the clamp 7 through the second port ② and the sixth port ⑥ of the fourth reversing link 4, and the B2 oil port corresponding to the non-spring side working oil chamber of the clamp 7, and the oil in the spring side working oil chamber returns to the second oil return circuit T2 of the system through the A2 oil port corresponding to the spring side working oil chamber, the fourth port ④ and the fifth port ⑤ of the fourth reversing link 4, and the clamp 7 is clamped. At the same time, the pressure oil of the second oil inlet circuit P2 of the system enters the working oil chamber of chuck 8 through the first port ① and the fourth port ④ of the third reversing link 3, the first port ① and the fourth port ④ of the fifth reversing link 5, and the A3 oil port corresponding to the working oil chamber of chuck 8, and chuck 8 is clamped.

[0052] When the second reversing link 2 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the hydraulic control port on the a side of the third reversing link 3 through the second port ② and the fourth port ④ of the second reversing link 2, and at the same time enters the hydraulic control port on the b side of the third reversing link 3 through the second port ② and the fifth port ⑤ of the second reversing link 2, so that the third reversing link 3 is in the middle position, and the fourth reversing link 4 is in the middle position and the fifth reversing link 5 is in the a position, the pressure oil of the second oil inlet circuit P2 of the system ... third reversing link 3 The first port ①, the third port ③, the first port ①, the fifth port ⑤ of the fourth reversing link 4, and the A2 oil port corresponding to the spring side working oil chamber of the clamp 7 enter the spring side working oil chamber of the clamp 7, and the oil in the non-spring side working oil chamber of the clamp 7 returns to the second oil return circuit T2 of the system through the B2 oil port corresponding to the non-spring side working oil chamber of the clamp 7, the third port ③, the sixth port ⑥ of the fourth reversing link 4, the second port ②, the fifth port ⑤ of the third reversing link 3, and the clamp 7 is clamped. At the same time, the pressure oil of the second oil inlet circuit P2 of the system enters the working oil chamber of the chuck 8 through the second port ②, the fourth port ④ of the fifth reversing link 5, and the A3 oil port corresponding to the working oil chamber of the chuck 8, and the chuck 8 is clamped.

[0053] When the second reversing link 2 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the hydraulic control port on the a side of the third reversing link 3 through the second port ② and the fourth port ④ of the second reversing link 2, and at the same time enters the hydraulic control port on the b side of the third reversing link 3 through the second port ② and the fifth port ⑤ of the second reversing link 2, so that the third reversing link 3 is in the middle position, and the fourth reversing link 4 is in the middle position and the fifth reversing link 5 is in the b position, the pressure oil of the second oil inlet circuit P2 of the system enters the hydraulic control port on the b side of the third reversing link 3 through the second port ② and the fifth port ⑤ of the third reversing link 3 The first port ①, the third port ③, the first port ①, the fifth port ⑤ of the fourth reversing link 4, and the A2 oil port corresponding to the spring side working oil chamber of the clamp 7 enter the spring side working oil chamber of the clamp 7, and the oil in the non-spring side working oil chamber of the clamp 7 returns to the second oil return circuit T2 of the system through the B2 oil port corresponding to the non-spring side working oil chamber of the clamp 7, the third port ③, the sixth port ⑥ of the fourth reversing link 4, the second port ②, the fifth port ⑤ of the third reversing link 3, and the clamp 7 is clamped. At the same time, the oil in the oil chamber of the chuck 8 returns to the second oil return circuit T2 of the system through the A3 oil port corresponding to the working oil chamber of the chuck 8, the third port ③, and the fourth port ④ of the fifth reversing link 5, and the chuck 8 is released.

[0054] Control logic in linkage working mode: The first reversing link 1 is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and pulling oil cylinder 6, and when the first oil return circuit T1 of the system is connected with the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and pulling oil cylinder 6, the piston rod of the propulsion and pulling oil cylinder 6 contracts, and when the second reversing link 2 is configured to be in position a, the working pressure oil of the rod chamber of the propulsion and pulling oil cylinder 6 enters the a-side hydraulic control port of the third reversing link 3 through the third port ③ and the fourth port ④ of the second reversing link 2, so that the third reversing link 3 is in position a, and the fourth port When the reversing link 4 and the fifth reversing link 5 are in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the non-spring side working oil chamber through the first port ① and the fifth port ⑤ of the third reversing link 3, the third port ③ and the sixth port ⑥ of the fourth reversing link 4, and the B2 oil port corresponding to the non-spring side working oil chamber of the clamp 7, and the oil in the spring side working oil chamber returns to the second oil return circuit T2 of the system through the A2 oil port corresponding to the spring side working oil chamber, the first port ① and the fifth port ⑤ of the fourth reversing link 4, and the second port ② of the third reversing link 3, and the clamp 7 is released. At the same time, the second oil inlet circuit P2 of the system is connected with the oil circuit corresponding to the A3 oil port corresponding to the working oil chamber of the chuck 8 through the third reversing link 3, and the pressure oil of the second oil inlet circuit P2 of the system enters the working oil chamber of the chuck 8 through the first port ① and the fourth port ④ of the third reversing link 3, and the first port ① and the fourth port ④ of the fifth reversing link 5, and the chuck 8 is clamped.

[0055] When the first reversing link 1 is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and pulling oil cylinder 6, and the first oil return circuit T1 of the system is connected with the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and pulling oil cylinder 6, the piston rod of the propulsion and pulling oil cylinder 6 contracts, and when the second reversing link 2 is configured to be in the b position, the working pressure oil of the rod chamber of the propulsion and pulling oil cylinder 6 enters the b-side hydraulic control port of the third reversing link 3 through the third port ③ and the fifth port ⑤ of the second reversing link 2, so that the third reversing link 3 is switched to the b position, and the fourth reversing link 4 and the fifth reversing link 5 are connected. When the fifth reversing link 5 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the spring side working oil chamber of the clamp 7 through the first port ① and the third port ③ of the third reversing link 3, the first port ① and the fifth port ⑤ of the fourth reversing link 4, and the A2 oil port corresponding to the spring side working oil chamber of the clamp 7, and the oil in the non-spring side working oil chamber returns to the second oil return circuit T2 of the system through the B2 oil port corresponding to the non-spring side working oil chamber, the third port ③ and the sixth port ⑥ of the fourth reversing link 4, and the second port ② and the fifth port ⑤ of the third reversing link 3, and the clamp 7 is clamped. At the same time, the oil in the working oil chamber of the chuck 8 returns to the second oil return circuit T2 of the system through the A3 oil port corresponding to the working oil chamber of the chuck 8, the first port ① and the fourth port ④ of the fifth reversing link 5, and the second port ② and the fourth port ④ of the third reversing link 3, and the chuck 8 is released.

[0056] The first reversing link 1 is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and extraction cylinder 6, and when the first oil return circuit T1 of the system is connected with the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and extraction cylinder 6, the piston rod of the propulsion and extraction cylinder 6 extends, and when the second reversing link 2 is configured to be in position a, the working pressure oil of the rodless chamber of the propulsion and extraction cylinder 6 enters the b-side hydraulic control port of the third reversing link 3 through the first port ① and the fifth port ⑤ of the second reversing link 2, so that the third reversing link 3 is reversing to position b, and the fourth reversing link 4 and the fifth reversing link 5 are connected. When the fifth reversing link 5 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the spring side working oil chamber of the clamp 7 through the first port ① and the third port ③ of the third reversing link 3, the first port ① and the fifth port ⑤ of the fourth reversing link 4, and the A2 oil port corresponding to the spring side working oil chamber of the clamp 7, and the oil in the non-spring side working oil chamber returns to the second oil return circuit T2 of the system through the B2 oil port corresponding to the non-spring side working oil chamber, the third port ③ and the sixth port ⑥ of the fourth reversing link 4, and the second port ② and the fifth port ⑤ of the third reversing link 3, and the clamp 7 is clamped. At the same time, the oil in the working oil chamber of the chuck 8 returns to the second oil return circuit T2 of the system through the A3 oil port corresponding to the working oil chamber of the chuck 8, the first port ① and the fourth port ④ of the fifth reversing link 5, and the second port ② and the fourth port ④ of the third reversing link 3, and the chuck 8 is released.

[0057] The first reversing link 1 is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and extraction cylinder 6, and when the first oil return circuit T1 of the system is connected with the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and extraction cylinder 6, the piston rod of the propulsion and extraction cylinder 6 extends, and when the second reversing link 2 is configured to be in the b position, the working pressure oil of the rodless chamber of the propulsion and extraction cylinder 6 enters the a-side hydraulic control port of the third reversing link 3 through the first port ① and the fourth port ④ of the second reversing link 2, so that the third reversing link 3 is switched to the a position, and the fourth reversing link 4 and the first reversing link 5 are connected. When the fifth reversing link 5 is in the middle position, the pressure oil of the second oil inlet circuit P2 of the system enters the spring side working oil chamber of the clamp 7 through the first port ① and the third port ③ of the third reversing link 3, the first port ① and the fifth port ⑤ of the fourth reversing link 4, and the A2 oil port corresponding to the spring side working oil chamber of the clamp 7, and the oil in the non-spring side working oil chamber returns to the second oil return circuit T2 of the system through the B2 oil port corresponding to the non-spring side working oil chamber, the third port ③ and the sixth port ⑥ of the fourth reversing link 4, and the second port ② and the fifth port ⑤ of the third reversing link 3, and the clamp 7 is clamped. At the same time, the oil in the working oil chamber of the chuck 8 returns to the second oil return circuit T2 of the system through the A3 oil port corresponding to the working oil chamber of the chuck 8, the first port ① and the fourth port ④ of the fifth reversing link 5, and the second port ② and the fourth port ④ of the third reversing link 3, and the chuck 8 is released.

[0058] In addition, for better understanding, the use process of the new logic-controlled multi-way reversing valve module for drilling rigs disclosed in the present invention is described in detail below in combination with the actual application scenario of the new logic-controlled multi-way reversing valve module for actual drilling rigs.

[0059] Pole construction: When the fourth reversing link 4 and the fifth reversing link 5 are in the middle position, the second reversing link 2 is switched to position a, the linkage function is turned on, the pressure oil of the second oil inlet circuit P2 of the system is cut off in the second reversing link 2, the first reversing link 1 is switched, the rod chamber of the lifting and pulling oil cylinder 6 is pushed to enter the oil, and at the same time, the pressure oil enters the hydraulic control port on the a side of the third reversing link 3, so that the third reversing link 3 is switched to position a, the non-spring side working oil chamber of the clamp 7 enters the oil, the clamp 7 is released, the working oil chamber of the chuck 8 enters the oil, and the chuck 8 is clamped. At the same time, the piston rod of the lifting and pulling oil cylinder 6 is pushed to shrink, driving the power head (at this time, the chuck 8 clamps the drill rod) to feed, and the chuck 8 clamps the drill rod and sends it into the borehole to realize the rod feeding construction. After the power head moves to the rod feeding end position (the power head and the clamp 7 do not collide and there is a safe distance), the second reversing link 2 is switched to the middle position, the third reversing link 3 is also in the middle position, the clamp 7 is clamped, and the chuck 8 is clamped. Manual or automated machines align and tighten the new drill rod with the clamping drill rod. The fifth reversing link 5 is reversing to position b, the chuck 8 is loosened, and the first reversing link 1 is reversing to push the rodless chamber of the oil cylinder 6 into oil, the piston rod extends, and drives the power head to move to the rod feeding starting position without load. Then the second reversing link 2 is reversing to position a, the first reversing link 1 is reversing, the rod chamber of the oil cylinder 6 is pushed into oil, the piston rod retracts, and the rod feeding construction is cyclic.

[0060] Pole withdrawal construction: When drilling reaches the required depth, or a drilling failure occurs, or the rock structure or characteristics change (hardness, viscosity, etc.), the drill rod in the borehole must be removed in sections, or drill bits of different specifications and types must be replaced to continue drilling.

[0061] When the fourth reversing link 4 and the fifth reversing link 5 are in the middle position, the second reversing link 2 is switched to position b, the linkage function is turned on, the pressure oil of the second oil inlet circuit P2 of the system is cut off in the second reversing link 2, the first reversing link 1 is switched, the rodless chamber of the lifting and pulling oil cylinder 6 is pushed to enter the oil, and at the same time, the pressure oil enters the hydraulic control port on the a side of the third reversing link 3, so that the third reversing link 3 is switched to position a, the non-spring side working oil chamber of the clamp 7 enters the oil, the clamp 7 is released, the working oil chamber of the chuck 8 enters the oil, and the chuck 8 is clamped. At the same time, the piston rod of the lifting and pulling oil cylinder 6 is pushed out, driving the power head (at this time, the chuck 8 clamps the drill rod) to retreat, and the drill rod is withdrawn from the borehole to realize the rod withdrawal construction. After the power head moves to the starting position of the rod withdrawal (the connection thread of the last section of the drill rod and the previous section of the drill rod is at the rear of the clamp 7 and there is a safe distance), the second reversing link 2 is switched to the middle position, the third reversing link 3 is switched to the middle position, the clamp 7 is clamped, and the chuck 8 is clamped. After removing the drill pipe, the fifth reversing link 5 is single-actingly reversed to position b, the chuck 8 is loosened, the first reversing link 1 is reversed, the rod chamber of the pulling cylinder 6 is pushed in with oil, the piston rod contracts, and the power head is driven to move unloaded to the rod withdrawal end position (the power head and the clamp 7 do not collide and there is a safe distance), then the second reversing link 2 is reversed to position b, the first reversing link 1 is reversed, the rodless chamber of the pulling cylinder 6 is pushed in with oil, the piston rod is extended, and the rod withdrawal construction is carried out in a cycle.

[0062] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A new logic-controlled multi-way directional valve module for drilling rigs, characterized in that: The novel logic-controlled multi-way reversing valve module for a drilling rig comprises a first reversing unit (1), a second reversing unit (2), a third reversing unit (3), a fourth reversing unit (4), and a fifth reversing unit (5); The first reversing link (1) is configured to control the contraction of the piston rod of the propulsion and extraction cylinder (6) by connecting the first oil inlet circuit P1 of the system to the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and extraction cylinder (6) of the drilling rig, and connecting the first oil return circuit T1 of the system to the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and extraction cylinder (6) of the drilling rig, or to control the extension of the piston rod of the propulsion and extraction cylinder (6) by connecting the first oil inlet circuit P1 of the system to the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and extraction cylinder (6) of the drilling rig, and connecting the first oil return circuit T1 of the system to the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and extraction cylinder (6) of the drilling rig; The second reversing link (2) is configured to control the switching of the single-action and linkage working modes of the clamp (7) and the chuck (8); When the second reversing link (2) is in the middle position, it is a single-acting working mode, and the second oil inlet circuit P2 of the system is connected to the hydraulic control ports on both sides of the third reversing link (3) through the second reversing link (2), so that the third reversing link (3) is in the middle position, and when the fourth reversing link (4) and the fifth reversing link (5) arranged in parallel are also in the middle position, the second oil inlet circuit P2 of the system is connected to the oil circuit of the A2 oil port corresponding to the spring side working oil chamber of the clamp (7) through the third reversing link (3), the second oil return circuit T2 of the system is connected to the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber of the clamp (7) through the third reversing link (3), and the second oil inlet circuit P2 of the system is connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck (8) of the drilling rig through the third reversing link (3), at this time, the clamp (7) is clamped and the chuck (8) is clamped; In the single-action working mode, when the fourth reversing link (4) or the fifth reversing link (5) is arbitrarily switched to position a or position b, one of the oil circuit of the A2 oil port corresponding to the spring-side working oil chamber of the clamp (7) and the oil circuit of the B2 oil port corresponding to the non-spring-side working oil chamber is directly connected to the second oil inlet circuit P2 of the system, and the other is directly connected to the second oil return circuit T2 of the system, so as to control the clamp (7) to be clamped or loosened, and the second oil inlet circuit P2 of the system or the second oil return circuit T2 of the system is directly connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck (8), so as to control the clamp (8) to be clamped or loosened; When the second reversing link (2) is in position a or b, it is in a linkage working mode, and the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and pulling oil cylinder (6) is controlled to communicate with the hydraulic control port on one side of the third reversing link (3), and the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and pulling oil cylinder (6) is connected to the hydraulic control port on the other side of the third reversing link (3), so that the third reversing link (3) is in position a or b, and when the fourth reversing link (4) and the fifth reversing link (5) are also in the middle position, the second oil inlet circuit P2 of the system and the One of the second oil return oil circuits T2 of the system is connected to the oil circuit of the A2 oil port corresponding to the working oil chamber on the spring side of the clamp (7) through the third reversing link (3), and the other is connected to the oil circuit of the B2 oil port corresponding to the working oil chamber on the non-spring side through the third reversing link (3) to control the clamping or loosening of the clamp (7), and the second oil inlet oil circuit P2 of the system or the second oil return oil circuit T2 of the system is connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck (8) through the third reversing link (3) to control the clamping or loosening of the chuck (8); In the linkage working mode, when the fourth reversing link (4) and the fifth reversing link (5) are switched to position a or position b, one of the oil circuits of the A2 oil port corresponding to the working oil chamber on the spring side of the clamp (7) and the B2 oil port corresponding to the working oil chamber on the non-spring side is directly connected to the second oil inlet oil circuit P2 of the system, and the other is directly connected to the second oil return oil circuit T2 of the system, so as to control the clamp (7) to be clamped or loosened, and the second oil inlet oil circuit P2 of the system or the second oil return oil circuit T2 of the system is directly connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck (8), so as to control the clamp (8) to be clamped or loosened.

2. The novel logic-controlled multi-way reversing valve module for drilling rigs according to claim 1 is characterized in that: In the linkage working mode, the first reversing link (1) is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and extraction cylinder (6), and the first oil return circuit T1 of the system with the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and extraction cylinder (6), the piston rod contracts, and when the second reversing link (2) is configured to be in position a, the third reversing link (3) is in position a, and the fourth reversing link (4) and the fifth reversing link (5) are in the middle position, the piston rod contracts. The second oil inlet circuit P2 of the system is connected to the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber of the clamp (7) through the third reversing link (3), and the second oil return circuit T2 of the system is connected to the oil circuit of the A2 oil port corresponding to the spring side working oil chamber of the clamp (7) through the third reversing link (3). The clamp (7) is released, and the second oil inlet circuit P2 of the system is connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck (8) through the third reversing link (3). The chuck (8) is clamped.

3. The novel logic-controlled multi-way reversing valve module for drilling rigs according to claim 1 is characterized in that: In the linkage working mode, the first reversing link (1) is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and extraction cylinder (6), and the first oil return circuit T1 of the system with the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and extraction cylinder (6), the piston rod of the propulsion and extraction cylinder (6) contracts, and when the second reversing link (2) is configured to be in position b, the third reversing link (3) is in position b, and the fourth reversing link (4) and the fifth reversing link (5) are in position b. When the reversing link (5) is in the middle position, the second oil inlet circuit P2 of the system is connected to the oil circuit of the A2 oil port corresponding to the spring side working oil chamber of the clamp (7) through the third reversing link (3), the second oil return circuit T2 of the system is connected to the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber of the clamp (7) through the third reversing link (3), the clamp (7) is clamped, the second oil return circuit T2 of the system is connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck (8), and the chuck (8) is released.

4. The novel logic-controlled multi-way reversing valve module for drilling rigs according to claim 1 is characterized in that: In the linkage working mode, the first reversing link (1) is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and extraction cylinder (6), and the first oil return circuit T1 of the system with the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and extraction cylinder (6), the piston rod of the propulsion and extraction cylinder (6) extends, and when the second reversing link (2) is configured to be in position a, the third reversing link (3) is in position b, and the fourth reversing link (4), the fifth reversing link (5) and the fifth reversing link (6) are in position b. When the reversing link (5) is in the middle position, the second oil inlet circuit P2 of the system is connected to the oil circuit of the A2 oil port corresponding to the working oil chamber on the spring side of the clamp (7) through the third reversing link (3), and the second oil return circuit T2 of the system is connected to the oil circuit of the B2 oil port corresponding to the working oil chamber on the non-spring side of the clamp (7) through the third reversing link (3), and the clamp (7) is clamped. The second oil return circuit T2 of the system is connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck (8), and the chuck (8) is released.

5. The novel logic-controlled multi-way reversing valve module for drilling rigs according to claim 1 is characterized in that: In the linkage working mode, the first reversing link (1) is configured to connect the first oil inlet circuit P1 of the system with the oil circuit of the B1 oil port corresponding to the rodless chamber of the propulsion and extraction cylinder (6), and the first oil return circuit T1 of the system with the oil circuit of the A1 oil port corresponding to the rod chamber of the propulsion and extraction cylinder (6), the piston rod of the propulsion and extraction cylinder (6) extends, and when the second reversing link (2) is configured to be in position b, the third reversing link (3) is in position a, and the fourth reversing link (4) and the fifth reversing link (5) are in position a. When the reversing link (5) is in the middle position, the second oil inlet circuit P2 of the system is connected to the oil circuit of the B2 oil port corresponding to the non-spring side working oil chamber of the clamp (7) through the third reversing link (3), and the second oil return circuit T2 of the system is connected to the oil circuit of the A2 oil port corresponding to the spring side working oil chamber of the clamp (7) through the third reversing link (3), and the clamp (7) is released, and the second oil inlet circuit P2 of the system is connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck (8), and the chuck (8) is clamped.

6. The novel logic-controlled multi-way reversing valve module for drilling rigs according to claim 1 is characterized in that: In the single-action working mode or the linkage working mode, when the fourth reversing link (4) is configured to be in position a, the second oil inlet circuit P2 of the system is directly connected to the oil circuit of the A2 oil port corresponding to the working oil chamber on the spring side of the clamp (7), and the second oil return circuit T2 of the system is directly connected to the oil circuit of the B2 oil port corresponding to the working oil chamber on the non-spring side of the clamp (7), and the clamp (7) is clamped; When the fourth reversing link (4) is configured to be in position b, the second oil inlet circuit P2 of the system is directly connected to the oil circuit of the B2 oil port corresponding to the working oil chamber on the non-spring side of the clamp (7), and the second oil return circuit T2 of the system is directly connected to the oil circuit of the A2 oil port corresponding to the working oil chamber on the spring side of the clamp (7), and the clamp (7) is released.

7. The novel logic-controlled multi-way reversing valve module for drilling rigs according to claim 1 is characterized in that: In the single-action working mode or the linkage working mode, when the fifth reversing link (5) is configured to be in position a, the second oil inlet oil circuit P2 of the system is directly connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck (8), and the chuck (8) is clamped; When the fifth reversing link (5) is configured to be in position b, the second oil return oil circuit T2 of the system is directly connected to the oil circuit of the A3 oil port corresponding to the working oil chamber of the chuck (8), and the chuck (8) is released.

8. The novel logic-controlled multi-way reversing valve module for drilling rigs according to claim 1 is characterized in that: At least one of the first reversing link (1), the second reversing link (2), the fourth reversing link (4), and the fifth reversing link (5) is a manual reversing link.

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