Chain cutter injection system with replaceable blades

Abstract

The utility model relates to the field of underwater cable laying, in particular to a blade-replaceable chain cutter spraying system which comprises spraying assemblies, a chain cutter assembly water pump and a connecting pipe, the spraying assemblies are rotatably installed on the connecting pipe and communicate with the water pump through the connecting pipe, the spraying assemblies and the chain cutter assemblies are in one-to-one correspondence, and the chain cutter assemblies are fixedly installed on the spraying assemblies. The chain cutter assembly comprises a first driving part and a cutting part, and the output end of the first driving part is connected with the cutting part and can drive the cutting part to move. The chain cutter assembly can cut hard soil and stones in a chain transmission working mode during seabed ditching and cable laying work, meanwhile, compared with single-tool linear cutting, the chain wheel and the chain can effectively increase the cutting force with the soil, and the cutting efficiency is improved. The chain cutter assembly and the spraying assembly cooperate to work, so that the working speed and the ditch blowing quality of the submarine cable laying robot can be effectively improved, and the submarine cable laying robot is applied to various complex working environments.

Description

Technical Field

[0001] The present application relates to the field of underwater cable laying, and in particular to a chain knife jetting system with replaceable blades. Background Art

[0002] With the continuous development of offshore oil, natural gas and other resources, the demand for laying submarine cables has increased rapidly, and submarine cable burial has become an important field of marine engineering. An underwater cable-laying robot is a robot used for laying and maintaining cables in an underwater environment. These robots are usually equipped with control systems, sensors, robotic arms and other equipment, and can perform various tasks underwater, such as installing submarine cables and repairing damaged cables. The submarine cable is buried under the seabed, and the operation process is very complicated. In a marine environment with very poor visual environment, the cable pre-laid on the seabed is found. After finding the cable, the burying equipment needs to be parked upright along the direction of the cable just above the cable. Then slowly lower the trench excavation equipment to dig out the trench, and bury the submarine cable inside the submarine cable.

[0003] Existing cable-laying robots are generally only equipped with jet swords. When digging trenches and laying cables on the seabed, they can only work quickly in sandy soil and very soft clay environments. Moreover, the jet sword needs to be ejected multiple times to complete the work, which prolongs the overall working time and reduces the working efficiency. At the same time, in practice, submarine cable-laying robots are easily restricted by seabed conditions and cannot break through harder soil, which affects the working speed and quality, and can also affect the service life of the cable.

[0004] Therefore, there is an urgent need for a replaceable blade chain knife injection system to solve the above problems. Utility Model Content

[0005] The purpose of the present application is to provide a replaceable blade chain knife spray system.

[0006] The embodiments of the present application can be implemented through the following technical solutions:

[0007] A replaceable blade chain knife injection system, comprising an injection assembly, a chain knife assembly and a water pump, wherein the injection assembly is rotatably mounted on the connecting pipe and communicates with the water pump through the connecting pipe, the injection assembly corresponds to the chain knife assembly one by one and the chain knife assembly is fixedly mounted on the injection assembly;

[0008] Furthermore, the chain knife assembly includes a first driving part and a cutting part, and the output end of the first driving part is connected to the cutting part and can drive the cutting part to perform cutting motion.

[0009] Further, the cutting part includes a chain, a sprocket and a plurality of blades, the sprocket is installed on one side of the injection assembly, the chain is meshed with the sprocket, and the plurality of blades are arranged in sequence and installed on the chain;

[0010] Furthermore, the sprocket is rotatably connected to the injection assembly via a bearing, and the output end of the first driving part is fixedly connected to the bearing and can drive the sprocket to rotate, thereby driving the chain to perform a cyclic reciprocating motion.

[0011] Furthermore, the sprocket includes a driving wheel meshed with the chain and a first driven wheel, the output end of the first driving part is fixedly connected to the bearing of the driving wheel, and the first driven wheel is installed at one end of the injection assembly away from the driving wheel.

[0012] Furthermore, the sprocket also includes a second driven wheel, which is installed at one end of the injection assembly close to the driving wheel, and the second driven wheel is arranged in a slope with the driving wheel and the slope faces the second driven wheel end.

[0013] Furthermore, the cutting part also includes a fixing frame, the fixing frame and the sprocket are installed on the same side of the injection assembly and the fixing frame is located on the inner side of the sprocket, and the chain is arranged on the outer periphery of the fixing frame.

[0014] Furthermore, the fixing frame includes a first fixing portion and a second fixing portion, the first fixing portion extends along the length direction of the chain knife assembly and the outer side of the first fixing portion can contact the inner side of the chain, and the second fixing portion is arranged inside the first fixing portion.

[0015] Furthermore, the second fixing portion is arranged with a plurality of fixing rods, the fixing rods are arranged obliquely, two adjacent fixing rods are arranged in a V shape, and both ends of the fixing rods are fixedly connected to the first fixing portion.

[0016] Furthermore, it also includes a sliding base, which is coaxially arranged with the connecting pipe to form a channel for liquid flow, and the injection assembly is detachably connected to the sliding base and rotatably mounted on the connecting pipe through the sliding base.

[0017] Furthermore, the jet assembly includes a second drive unit, a third drive unit and a jet sword, the jet sword is connected to the sliding base, the third drive unit is hinged to the jet sword and can drive the jet sword to rotate circumferentially around the sliding base, and the second drive unit can drive the sliding base to displace along the axial direction of the connecting pipe, thereby driving the jet sword to move horizontally.

[0018] Furthermore, the jet sword is provided with a plurality of jet nozzles, and the jet nozzles are arranged in sequence along the length direction of the jet sword.

[0019] The replaceable blade chain knife spraying system provided in the embodiment of the present application has at least the following beneficial effects:

[0020] 1. The chain knife assembly in this application can cut hard soil and stones through chain transmission when encountering harder soil during submarine trenching and cable laying work. At the same time, compared with single-knife linear cutting, the sprocket and chain can effectively increase the cutting force with the soil, which can effectively improve the operating speed and trench blowing quality of the submarine cable-laying robot.

[0021] 2. The fixing frame in the present application provides fixation and support for the chain knife assembly. During cutting, the chain is easily deformed due to excessive or uneven force. The setting of the fixing frame can largely avoid the occurrence of the above situation, has strong stability, and also increases the service life of the chain knife assembly.

[0022] 3. The jet assembly in the present application can be replaced and adjusted according to the actual use conditions, and different forms of chain knife assemblies can be installed according to different models of jet assemblies, thereby improving the functionality of the submarine cable-laying robot and enabling it to be used in a variety of complex environments.

[0023] 4. The second driving unit and the third driving unit in the present application can control the injection assembly to realize the two functions of translation and rotation, which can effectively avoid moving the submarine cable laying robot due to the misalignment of the submarine cable and the injection assembly. It is only necessary to control the second driving unit and the third driving unit to move the injection assembly, which can reduce energy consumption, simplify the operation steps and save time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall structure diagram of the replaceable blade chain knife injection system in this application;

[0025] Figure 2 It is a left side view of the replaceable blade chain knife spray system in the present application;

[0026] Figure 3 This is a structural diagram of the blade in the replaceable blade chain knife spray system of this application;

[0027] Figure 4 This is a structural diagram of the blade in the replaceable blade chain knife spray system of this application;

[0028] Figure 5 This is a structural diagram of the blades in the replaceable blade chain knife spray system in this application.

[0029] The numbers in the figure are: 1-jet assembly, 11-jet sword, 12-jet nozzle, 13-third driving part, 14-second driving part, 2-chain knife assembly, 21-cutting part, 211-chain, 212-sprocket, 215-driving wheel, 216-first driven wheel, 219-second driven wheel, 213-blade, 214-fixed frame, 217-first fixed part, 218-second fixed part, 2181-fixed rod, 22-first driving part, 3-water pump, 4-fourth driving part, 5-sliding base, 6-connecting pipe. DETAILED DESCRIPTION

[0030] Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

[0031] In addition, various components on the drawings are enlarged (thickened) or reduced (thinned) for ease of understanding, but this practice is not intended to limit the scope of protection of the present application.

[0032] Words importing the singular also include the plural and vice versa.

[0033] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, in order to distinguish different units, the words first, second, etc. are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance, and their names may be different in the detailed description and claims of the present application.

[0034] The vocabulary in this specification is used to illustrate the embodiments of the present application, but is not intended to limit the present application. It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0035] The present application provides a replaceable blade chain knife spray system, Figure 1 and Figure 2 The overall structure diagram and left view of the replaceable blade chain knife spray system in the present application are shown respectively, as shown in FIG. Figure 1 and Figure 2 As shown, it includes an injection assembly 1, a chain knife assembly 2 and a water pump 3. The injection assembly 1 is rotatably mounted on the connecting pipe 6 and is connected to the water pump 3 through the connecting pipe 6. The water pump 3 provides a high-pressure water source for the injection assembly 1. The injection assembly 1 corresponds to the chain knife assembly 2 one by one and the chain knife assembly 2 is fixedly mounted on the injection assembly.

[0036] In some preferred embodiments of the present application, the water pump 3 corresponds to the injection assembly 1 one by one, or a high-power water pump 3 is used to control all the injection assemblies 1.

[0037] Furthermore, the chain knife assembly 2 includes a first driving part 22 and a cutting part 21, the output end of the first driving part 22 is connected to the cutting part 21 and can drive the cutting part 21 to perform cutting movement, and the cutting part 21 is a mechanical structure that is in direct contact with hard soil or stone during seabed operations.

[0038] Specifically, the cutting part 21 includes a chain 211, a sprocket 212 and a plurality of blades 213, the sprocket 212 is installed on one side of the injection assembly 1, the chain 211 is meshed with the sprocket 212, and the plurality of blades 213 are arranged in sequence and installed on the chain 211.

[0039] In some preferred embodiments of the present application, the blade is the part that directly contacts the hard soil during seabed operation, and the material of the blade is a wear-resistant material. Figure 3 , Figure 4 , Figure 5 As shown, different blade types and sizes can be replaced in time according to different working conditions to improve the functionality of the chain blade assembly 2 and meet the needs of seabed work, while also further improving the operating speed and efficiency.

[0040] Furthermore, the sprocket is rotatably connected to the injection assembly 1 via a bearing, and the output end of the first driving unit 22 is fixedly connected to the bearing. The first driving unit 22, as a driving unit of the chain knife assembly 2, can drive the sprocket 212 to rotate, and then transmit motion and power through the engagement of the sprocket 212 with the chain 211, so that the chain 211 performs a cyclic reciprocating motion.

[0041] In some preferred embodiments of the present application, the first driving unit 22 is a hydraulic motor, a cylinder, an electric motor or the like.

[0042] Specifically, the sprocket 212 includes a driving wheel 215 and a first driven wheel 216 meshed with the chain 211. The output end of the first driving unit 22 is fixedly connected to the bearing of the driving wheel 215. The first driven wheel 216 is installed at one end of the injection assembly 1 away from the driving wheel 215. The first driving unit 22 drives the driving wheel 215, and then the driving wheel 215 transmits power to the first driven wheel 216 through the chain 211.

[0043] In some preferred embodiments of the present application, the sprocket 212 also includes a second driven wheel 219, which is installed at one end of the injection assembly 1 close to the driving wheel 215. The second driven wheel 219 and the driving wheel 215 are arranged in a slope and the slope faces the end of the second driven wheel 219. The second driven wheel 219 is connected to the driving wheel 215 and the first driven wheel 216 through the chain 211. In the present application, by setting the second driven wheel 219, the contact area between the sprocket 212 and the chain 211 is further increased, which can improve work efficiency.

[0044] Furthermore, the cutting part 21 in the present application adopts a chain drive working mode. Compared with single-blade straight-line cutting, the chain drive has a larger contact area with the seabed and is relatively stable during transmission, with higher precision. At the same time, each blade can cut hard soil or stone through the chain drive, thereby increasing the service life of the blade 213.

[0045] Furthermore, a speed sensor is provided in the chain knife assembly 2, and the speed sensor is used to detect the rotation speed of the cutting part 21 to monitor whether there is a jam during the working process, and restore its normal operation by adjusting the forward and reverse rotation in time.

[0046] In some preferred embodiments of the present application, the cutting part 21 further includes a fixing frame 214, the fixing frame 214 and the sprocket 212 are installed on the same side of the injection assembly 1 and the fixing frame 214 is located inside the sprocket 212, and the chain 211 is arranged on the periphery of the fixing frame 214. In the actual operation process, the length of the injection assembly 1 and the chain knife assembly 2 needs to be adjusted according to the specific situation. When the length of the chain knife assembly 2 increases, the fixing frame 214 needs to be installed to fix and stabilize the chain knife assembly 2.

[0047] Furthermore, the fixing frame 214 includes a first fixing portion 217 and a second fixing portion 218, wherein the first fixing portion 217 extends along the length direction of the chain knife assembly 2 and the outer side thereof can contact the inner side of the chain 211, and the second fixing portion 218 is arranged inside the first fixing portion 217. The fixing frame 214 plays a supporting and stabilizing role in the chain knife assembly 2. When the chain knife assembly 2 is buried in the muddy seabed, the sprocket 212 and the blade 213 are in direct contact with the hard soil or stones on the seabed. Without the setting of the fixing frame 214, the sprocket 212 is very likely to be deformed due to excessive force, which not only affects the working efficiency, but also affects the service life of the chain knife assembly 2.

[0048] Furthermore, the second fixing portion 218 is arranged with a plurality of fixing rods 2181, and the fixing rods 2181 are inclined, and two adjacent fixing rods 2181 are arranged in a V shape, and both ends of the fixing rods 2181 are fixedly connected to the first fixing portion 217. During the operation of the chain knife assembly 2, due to the cutting of hard soil or stones, uneven force will occur. Arranging a plurality of V-shaped fixing rods 2181 can effectively increase multiple support points. At the same time, the triangle formed by every two fixing rods 2181 and the first fixing portion 217 is stable, which can further prevent the chain knife assembly 2 from being damaged during operation, thereby enhancing the stability of the chain knife assembly 2.

[0049] Furthermore, the replaceable blade chain knife spray system in the present application also includes a sliding base 5, which is coaxially arranged with the connecting pipe 6 to form a channel for liquid flow, and the spray assembly 1 is detachably connected to the sliding base 5 and rotatably mounted on the connecting pipe 6 through the sliding base 5, and the sliding base 5 and the spray assembly 1 form a channel for liquid flow.

[0050] Furthermore, the jet assembly 1 includes a second driving unit 14, a third driving unit 13 and a jet sword 11, the jet sword 11 is connected to the sliding base 5, the third driving unit 13 is hinged to the jet sword 11 and can drive the jet sword 11 to rotate circumferentially around the sliding base 5, and the second driving unit 14 can drive the sliding base 5 to displace along the axial direction of the connecting pipe 6, thereby driving the jet sword 11 to move horizontally.

[0051] Furthermore, the jet sword 11 is detachably connected to the sliding base 5, and different types of jet swords 11 can be replaced according to specific usage conditions and working environments, and different forms of chain knife assemblies can be installed according to different types of jet assemblies, thereby improving the functionality of the submarine cable-laying robot and enabling it to be applied to more complex environments.

[0052] Furthermore, displacement sensors are provided inside the second driving part 14 and the third driving part 13, and the displacement sensors can monitor the swing angle and opening and closing distance of the injection assembly 1 in real time. At the same time, a pressure sensor is also provided on each pressure circuit, and the pressure sensor is used to monitor the pressure value of the reaction force exerted on the injection assembly 1 when opening, closing or rotating, so as to make timely adjustments to improve safety and reliability.

[0053] In some preferred embodiments of the present application, the second driving unit 14 is a driving device such as a hydraulic cylinder, a pneumatic cylinder, or a motor.

[0054] In some preferred embodiments of the present application, the third driving unit 13 is a driving device such as a hydraulic cylinder, a pneumatic cylinder, or a motor.

[0055] Specifically, the injection assembly 1 can be controlled to achieve translation and rotation through the second driving unit 14 and the third driving unit 13, thereby solving the problem that under normal circumstances, when the injection assembly 1 is not completely aligned with the submarine cable, the alignment of the injection assembly 1 with the submarine cable can only be achieved by adjusting the position of the submarine cable-laying robot. The energy consumption and complexity of the movement of the submarine cable-laying robot are much higher than those of the movement of the injection assembly 1. At the same time, the movement of the submarine cable-laying robot will also cause turbidity of the submarine water source, seriously reduce visibility, and greatly affect the progress of the work. Therefore, the setting of the second driving unit 14 and the third driving unit 13 can effectively reduce energy consumption and work complexity and improve safety and reliability.

[0056] Furthermore, the jet sword 11 is provided with a plurality of jet nozzles 12, which flush the soil out of the ditch when the jet assembly 1 is working. The jet nozzles 12 are arranged in sequence along the length direction of the jet sword 11, and the opening directions of the jet nozzles 12 can be installed and adjusted according to the actual use conditions, so that the jet assembly 1 can spray water in different directions when working, which can further speed up the working process and shorten the working time.

[0057] Furthermore, the replaceable blade chain knife spray system in the present application also includes a fourth driving unit 4 corresponding one-to-one to the water pump 3, and the fourth driving unit 4 can drive the water pump 3 to work.

[0058] In some preferred embodiments of the present application, the fourth driving unit 4 is a driving device such as a hydraulic cylinder, a pneumatic cylinder, or a motor.

[0059] Furthermore, in the replaceable blade chain knife spraying system of the present application, the spraying assembly 1 can be operated independently, and the chain knife assembly 2 and the spraying assembly 1 may not have a one-to-one correspondence. For example, a plurality of the spraying assemblies 1 can be set in the submarine cable laying robot for operation and the chain knife assembly 2 is only installed on at least one of the spraying assemblies 1, and the selection and installation are carried out according to the actual working environment. When performing the flushing and burying work of submarine cable laying, the submarine cable laying robot moves to the bottom of the required trench, adjusts the position state of the spraying assembly 1 and the submarine cable, and when encountering sand or soft clay environment, only needs to start the spraying assembly 1 to work, and introduce the high-pressure water provided by the water pump 3 into the spray sword 11 through the connecting pipe 6 for spraying and flushing; when encountering hard soil or stones, start the chain knife assembly 2 to work, and cut the hard soil or stones through the blade 213, and the spraying assembly 1 assists in the work, thereby improving the operating speed and trench blowing quality of the submarine cable laying robot, improving the functionality of the submarine cable laying robot, and being able to be used in more complex environments and saving time and cost.

[0060] The above is a detailed introduction to the specific implementation methods of the present application. For those skilled in the art, several improvements and modifications may be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A replaceable blade chain knife spray system, characterized in that: The invention comprises an injection assembly (1), a chain knife assembly (2), a water pump (3) and a connecting pipe (6), wherein the injection assembly (1) is rotatably mounted on the connecting pipe (6) and is connected to the water pump (3) via the connecting pipe (6), the injection assembly (1) corresponds to the chain knife assembly (2) one by one, and the chain knife assembly (2) is fixedly mounted on the injection assembly (1); The chain knife assembly (2) comprises a first driving part (22) and a cutting part (21); an output end of the first driving part (22) is connected to the cutting part (21) and can drive the cutting part (21) to move.

2. The replaceable blade chain knife spraying system according to claim 1, characterized in that: The cutting part (21) comprises a chain (211), a sprocket (212) and a plurality of blades (213); the sprocket (212) is mounted on one side of the injection assembly (1); the chain (211) is meshed with the sprocket (212); and the plurality of blades (213) are sequentially arranged and mounted on the chain (211); The sprocket (212) is rotatably connected to the injection assembly (1) via a bearing, and the output end of the first driving unit (22) is fixedly connected to the bearing and can drive the sprocket (212) to rotate, thereby driving the chain (211) to perform a cyclic reciprocating motion.

3. The replaceable blade chain knife spraying system according to claim 2, characterized in that: The sprocket (212) comprises a driving wheel (215) meshed with the chain (211) and a first driven wheel (216); the output end of the first driving unit (22) is fixedly connected to a bearing of the driving wheel (215); and the first driven wheel is installed at one end of the injection assembly (1) away from the driving wheel (215).

4. The replaceable blade chain knife spraying system according to claim 3, characterized in that: The sprocket (212) further comprises a second driven wheel (219), wherein the second driven wheel (219) is mounted on one end of the injection assembly (1) close to the driving wheel (215), and the second driven wheel (219) and the driving wheel (215) are arranged in a sloped direction, with the slope facing the end of the second driven wheel (219).

5. The replaceable blade chain knife spraying system according to claim 2, characterized in that: The cutting portion (21) further comprises a fixing frame (214), wherein the fixing frame (214) and the sprocket (212) are mounted on the same side of the injection assembly (1) and the fixing frame (214) is located on the inner side of the sprocket (212), and the chain (211) is arranged on the outer periphery of the fixing frame (214).

6. The replaceable blade chain knife spraying system according to claim 5, characterized in that: The fixing frame (214) comprises a first fixing portion (217) and a second fixing portion (218), wherein the first fixing portion (217) extends along the length direction of the chain knife assembly (2) and the outer side thereof can contact the inner side of the chain (211), and the second fixing portion (218) is arranged inside the first fixing portion (217).

7. The replaceable blade chain knife spraying system according to claim 6, characterized in that: The second fixing portion (218) is arranged with a plurality of fixing rods (2181), the fixing rods (2181) are arranged obliquely, two adjacent fixing rods (2181) are arranged in a V shape, and both ends of the fixing rods (2181) are fixedly connected to the first fixing portion (217).

8. The replaceable blade chain knife spraying system according to claim 1, characterized in that: It also comprises a sliding base (5), wherein the sliding base (5) and the connecting pipe (6) are coaxially arranged to form a channel for liquid flow, and the injection assembly (1) is detachably connected to the sliding base (5) and is rotatably mounted on the connecting pipe (6) via the sliding base (5).

9. The replaceable blade chain knife spraying system according to claim 8, characterized in that: The jet assembly (1) comprises a second drive unit (14), a third drive unit (13) and a jet sword (11); the jet sword (11) is connected to the sliding base (5); the third drive unit (13) is hinged to the jet sword (11) and can drive the jet sword (11) to rotate circumferentially around the sliding base (5); the second drive unit (14) can drive the sliding base (5) to move in the axial direction of the connecting pipe (6), thereby driving the jet sword (11) to move horizontally.

10. The replaceable blade chain knife spraying system according to claim 9, characterized in that: The jet sword (11) is provided with a plurality of jet nozzles (12), and the jet nozzles (12) are arranged in sequence along the length direction of the jet sword (11).

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