Auxiliary device for ball receiving and serving operation and using method of auxiliary device

Abstract

The invention relates to the technical field of oil and gas field ground engineering, in particular to a ball receiving and serving operation auxiliary device and a using method of the ball receiving and serving operation auxiliary device. The operating rod is arranged on the working platform and can move in and / or move out of the ball receiving and sending cylinder along the working platform, the head end of the operating rod is detachably connected with the tool head, the tool head comprises a connecting part and a tool part, and the connecting part is detachably connected with the operating rod. The device is simple in structure and convenient to move, tool heads with different functions can be replaced according to different use requirements, the overall portability and functional diversity of the device are improved, the device can adapt to different use environments, the use method saves labor, the manpower requirement in the pipe cleaner taking-out or sending process can be reduced, and the use efficiency is improved. And the inside of the ball receiving and sending cylinder can be cleaned, detected and the like through the operating rod connected with the tool head, so that the auxiliary device can adapt to different working environments.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas field surface engineering, and in particular to a ball receiving and serving operation auxiliary device and a use method thereof. Background Art

[0002] During the production and operation of gas field gathering and transportation pipelines, due to incomplete gas-liquid separation in well stations and gas gathering stations, the liquid phase gradually deposits in the pipeline, reducing the pipe diameter and increasing the roughness, thereby increasing the friction along the pipeline, increasing the inlet and outlet pressure difference, reducing the transportation efficiency, and even hindering the normal production of gas wells in severe cases. To solve the above problems, in the construction of gas field surface engineering, it is usually adopted to add sending and receiving ball barrels upstream and downstream of the pipeline, and use the method of sending pipe cleaners to clear the accumulated liquid in the pipeline. The pipe cleaning operation carried out using sending and receiving ball barrels is called sending and receiving ball operation.

[0003] The ball sending and receiving operation not only includes the operation of sending and retrieving the pipe cleaner, but also includes the operation of conducting various inspections and repair and maintenance on the receiving and sending cylinders for integrity and air tightness before sending the pipe cleaner; after retrieving the pipe cleaner, the receiving and sending cylinders are cleaned in preparation for the next use, etc. However, the existing technical solutions for the ball sending and receiving operation mostly focus on realizing the two operations of sending and retrieving the pipe cleaner, and have a single function, and cannot complete the various operational requirements of the ball sending and receiving operation, and are difficult to be widely promoted. In addition, due to the long interval between the ball sending and receiving operations, in order to save equipment costs, the related auxiliary devices for the ball sending and receiving operations are often used in a mobile manner, which puts forward requirements on the adaptability and convenience of the device, but the current auxiliary devices do not solve this problem.

[0004] Therefore, there is an urgent need for a technical solution to solve the technical problems that the existing auxiliary devices for serving and receiving operations have single functions, insufficient adaptability and portability. Summary of the invention

[0005] The purpose of the present invention is to provide a ball serving and receiving operation auxiliary device and a use method thereof to address the technical problems that the existing auxiliary devices for ball serving and receiving operation have single functions, insufficient adaptability and portability.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A ball serving and receiving operation auxiliary device comprises a movable trolley and an operating rod, wherein the movable trolley is provided with a working platform, the operating rod is provided on the working platform and can be moved into and / or out of a ball serving and receiving cylinder along the working platform, the front end of the operating rod is detachably connected to a tool head, the tool head comprises a connecting portion and a tool portion, and the connecting portion is detachably connected to the operating rod.

[0007] The ball serving and receiving operation auxiliary device of the present invention is moved by a mobile trolley equipped with an operating rod connectable to a tool head, which is easy to move and improves the overall portability of the ball serving and receiving operation auxiliary device. At the same time, tool heads with different functions can be replaced according to different usage requirements, thereby improving the functional diversity of the ball serving and receiving operation auxiliary device and being able to adapt to different usage environments.

[0008] As a preferred solution of the present invention, the working platform is provided with a support frame and a hydraulic cylinder, the support frame is provided with a support hole adapted to the operating rod, and the hydraulic cylinder is arranged opposite to the support hole, so that the moving direction of the operating rod is controllable and can maintain a controllable horizontal state and move toward the sending and receiving cylinder.

[0009] As a preferred solution of the present invention, the operating rod comprises a plurality of hollow rod segments connected by splicing, the tail end of the operating rod can be detachably connected to the air supply mechanism, and the tail end of the operating rod is equipped with a cover, so that the overall length of the operating rod can be adjusted according to actual conditions to adapt to different use environments, and at the same time, through the hollow channel inside the operating rod, the operating rod has the function of guiding airflow, which can further expand the application range of the auxiliary device.

[0010] As a preferred solution of the present invention, the mobile trolley is provided with a storage box for storing the tool head, a plurality of limit slots for clamping and fixing the hollow rod segment are arranged in the storage box, and the storage box is provided with a storage space for storing the tool head, so as to achieve stable storage of the auxiliary device, avoid collision damage during movement, and extend the service life of the auxiliary device.

[0011] As a preferred solution of the present invention, a lifting mechanism is arranged below the working platform, and the storage box is arranged at the bottom or side of the working platform, so that the working platform can adaptively adjust the position of the operating rod according to the height of the ball receiving and sending cylinder.

[0012] As a preferred solution of the present invention, the tool part includes any one of a hook, a spiral needle, a shovel, a magnetic suction piece, a breathable tube, and a suction cup. One connection part corresponds to one tool part, and a plurality of tool parts with different structures can be provided according to actual conditions. When in use, tool heads with different structures are connected to the operating rod according to actual operation requirements.

[0013] As a preferred solution of the present invention, the tool part includes a functional rod, a hanging ring is connected to the functional rod or a strap is wound around the functional rod, a storage bag is arranged on the storage bag, and the hanging ring and the storage bag are used to limit and fix the detection mechanism. The detection mechanism can be conveniently moved to a position close to the pipe cleaner for detection through the operating rod, thereby improving the detection accuracy, and the operating rod structure provides a fixing foundation for detection mechanisms of different structural styles.

[0014] As a preferred solution of the present invention, the detection mechanism includes one or more of a camera mechanism, a detection instrument and a lighting mechanism, and the detection mechanism is connected to a display mechanism, and the display mechanism is arranged on the mobile vehicle. The display mechanism is arranged to obtain the detection results in time and provide a basis for the operation personnel. Different detection mechanisms can be used according to the actual situation to realize the detection requirements of different working environments in the sending and receiving tube.

[0015] As a preferred solution of the present invention, the rear end of the operating rod is equipped with a crank mechanism, and the head end is equipped with a sliding support mechanism. The crank mechanism is used to rotate the operating rod so that the detection mechanism on the operating rod can be rotated to a suitable position to achieve accurate detection of different positions in the receiving and sending cylinder. At the same time, the sliding support mechanism supports the head end of the operating rod, which can prevent the operating rod from bending down after the length is too long, thereby improving the human controllability of the operating rod.

[0016] A method for using a ball receiving and serving auxiliary device comprises the above-mentioned ball receiving and serving auxiliary device, and comprises the following steps: S1, moving a mobile trolley to the position of the mouth of a ball receiving and serving cylinder and aligning it; S2, passing a hollow rod segment connected to a tool head through a support hole, and connecting a sliding support mechanism on the side of the hollow rod segment close to the ball receiving and serving cylinder; S3, starting a hydraulic cylinder to push the hollow rod segment toward the ball receiving and serving cylinder until the tail end of the hollow rod segment is close to the support frame; S4, retreating the hydraulic cylinder, and connecting a new hollow rod segment to the tail end of the previous hollow rod segment; S5, looping S3-S4 until the tool head reaches a working position and works, and the work includes one or more of taking the device, cleaning, and detecting; S6, after the work is completed, connecting the hydraulic cylinder and an operating rod, pulling the operating rod backward, and disassembling the hollow rod segments section by section.

[0017] The method for using the ball receiving and sending operation auxiliary device of the present invention controls the movement of the operating rod through the hydraulic cylinder, so that the auxiliary device is labor-saving to use, and can reduce the manpower requirements in the process of removing or sending the pipe cleaner, and can clean and detect the inside of the ball receiving and sending cylinder through the operating rod connected to the tool head, so as to realize the adaptability of the auxiliary device in different working environments.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the ball receiving and serving auxiliary device of the present invention are: 1. The mobile trolley is equipped with an operating rod that can be connected to the tool head, which is easy to move and improves the overall portability of the receiving and serving auxiliary device; 2. Tool heads with different functions can be replaced according to different usage requirements to improve the functional diversity of the serving and receiving auxiliary device; 3. Able to adapt to different usage environments; The beneficial effects of the use method of the ball receiving and serving auxiliary device of the present invention are: 1. The movement of the operating rod is controlled by the hydraulic cylinder, making the auxiliary device labor-saving and reducing the manpower requirements in the process of removing or sending the pig; 2. The operating rod connected with the tool head can be used to clean and detect the inside of the sending and receiving tube, so that the auxiliary device can adapt to different working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a ball receiving and serving operation auxiliary device of the present invention; Figure 2 is a schematic structural diagram of the operating lever of the present invention; Figure 3 It is a schematic diagram of the structure of a tool head with a hook; Figure 4 It is a schematic diagram of the structure of a tool head with a spiral needle; Figure 5 It is a schematic diagram of the structure of the shovel described in the present invention; Figure 6 It is a schematic diagram of the structure of a tool head with a magnetic attraction; Figure 7 It is a schematic diagram of the structure of the hanging ring described in the present invention; Figure 8 is a schematic structural diagram of the functional rod of the present invention; Fig. 9 It is a structural schematic diagram of the sliding support mechanism described in the present invention.

[0020] icon: 1-mobile trolley, 11-working platform, 12-lifting mechanism, 2-operating rod, 21-hollow rod segment, 22-cover, 3-storage box, 4-tool head, 41-connecting part, 42-bend hook, 43-spiral needle, 44-shovel, 45-magnetic part, 46-breathable tube, 47-hanging ring, 48-function rod, 49-binding strap, 5-support frame, 6-hydraulic cylinder, 7-detection mechanism, 8-sliding support mechanism. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] Example 1 like Figure 1-Figure 9As shown, a ball serving and receiving operation auxiliary device includes a moving trolley 1 and an operating rod 2. The moving trolley 1 is provided with a working platform 11. The operating rod 2 is provided on the working platform 11 and can be moved into and / or out of the ball serving and receiving cylinder along the working platform 11. The front end of the operating rod 2 is detachably connected to a tool head 4. The tool head 4 includes a connecting portion 41 and a tool portion. The connecting portion 41 is detachably connected to the operating rod 2.

[0024] In this embodiment, the mobile trolley 1 includes a mobile lifting vehicle, which drives the working platform 11 to adjust its height through the lifting mechanism 12. The operating rod 2 includes a plurality of hollow rod segments 21. One end of each hollow rod segment 21 is provided with an internal threaded sleeve with a large and small head, and the other end is provided with an external threaded segment. When in use, the plurality of hollow rod segments 21 are threadedly connected in sequence to form an internally penetrating operating rod 2. The head end of the operating rod 2 is connected to the tool head 4 through an internal threaded sleeve with a large and small head. The connecting part 41 of the tool head 4 is a screw pipe section. The tool part of the tool head 41 is set to a shape structure with different functions according to the use requirements. When in use, By replacing the tool head 4 with different functions, an operating rod 2 with different functions is formed. The operating rod 2 cooperates with the mobile cart 1, so that the mobile cart 1 is equipped with the operating rod 2 and moves, which is convenient to move, thereby improving the overall portability and functional diversity of the receiving and serving auxiliary device, so as to enable the auxiliary device to adapt to different working environments. The auxiliary device of this embodiment can freely adjust the length of the operating rod 2, which is flexible and convenient to use. All parts can be simply disassembled and assembled, flexibly stored, and convenient to carry. All parts can be disassembled and assembled, and replaced separately, which is conducive to maintenance and increases the service life of the auxiliary device. It has great practicality and certain market prospects.

[0025] Preferably, the working platform 11 is provided with handrails on the sides and a trolley handle at the end according to actual conditions, and a lifting mechanism 12 is provided at the bottom. The lifting mechanism 12 is provided on the bottom plate of the mobile trolley 1, and wheels are provided on the bottom plate.

[0026] Preferably, the wheel is equipped with a fixture, which includes a wedge-shaped structural member, the wedge surface of the wedge-shaped structural member is set as an arc surface, the bottom surface is provided with anti-slip grooves, and a wheel arc groove for clamping the wheel is set on the arc surface. Furthermore, the wedge-shaped structural member is provided with a nail groove to limit the mobile trolley 1 by inserting a limiting nail into the ground, so as to prevent the mobile trolley 1 from moving during use.

[0027] Preferably, a storage box 3 is provided on the side or bottom of the working platform 11, such as Figure 1As shown, this embodiment is explained by taking the arrangement of a storage box 3 on the side of the working platform 11 as an example. The storage box 3 is divided into an upper space and a lower space by a transverse partition. The upper space is closed by a top flap, and a vertical limit groove is arranged on the side wall of the storage box 3 in the upper space to realize the arrangement and storage of the hollow rod segments 21. The lower space is closed by a side flap, and a limit groove adapted to the connecting part 41 is arranged on the bottom wall of the storage box 3 in the lower space to realize the stable storage of tool heads 4 with different functions, avoid collision damage during movement, and extend the service life of the auxiliary device.

[0028] Preferably, Figure 1 As shown, a support frame 5 and a hydraulic cylinder 6 are arranged on the working platform 11. The support frame 5 is provided with a support hole adapted to the operating rod 2. The hydraulic cylinder 6 is arranged at the rear of the support frame 5 so that the hydraulic cylinder 6 and the support hole are arranged opposite to each other. When in use, the operating rod 2 passes through the support hole, and the tail end is pushed forward by the hydraulic cylinder 6 or pulled back after being connected with the hydraulic cylinder 6. The head end is provided with a sliding support mechanism 8 according to the working environment. Fig. 9 As shown, the sliding support mechanism 8 includes a clamping hoop mechanism for clamping and connecting with the operating rod 2 and a roller arranged at the bottom, so that the front end of the operating rod is supported by the sliding support mechanism 8, and the rear end of the operating rod 2 is supported by the support frame 5, so that the moving direction of the operating rod 2 is controllable, the operation is labor-saving, and the downward deflection of the operating rod 2 when the length is long is avoided, so that the operating rod 2 is not limited by the length and can maintain a controllable horizontal state to move in or out of the sending and receiving cylinder.

[0029] Preferably, the hydraulic cylinder 6 is preferably configured to be a manual pressing type, with a piston arranged at the front end and a cylinder body arranged at the rear end, a manual pressing rod and an oil return pressure relief switch arranged at the upper part of the cylinder body, a base arranged at the lower part of the cylinder body, and the cylinder body is fixed to the base by a bent metal plate.

[0030] Example 2 like Figure 2-Figure 8 As shown, a ball serving and receiving operation auxiliary device of this embodiment is based on the embodiment 1, and the tool part includes any one of a hook 42, a spiral needle 43, a shovel 44, a magnetic suction part 45, and a breathable tube 46.

[0031] In the present embodiment, an auxiliary device for serving and receiving a ball is provided, wherein an operating rod 2 is threadedly connected to a connecting portion of a tool head 4 at a head end, and a plurality of tool heads 4 are provided in conjunction with one auxiliary device, wherein the tool portion of each tool head 4 is provided differently, so that the auxiliary device can meet different working conditions of serving and receiving a ball.

[0032] Specifically, the operating rod 2 that passes through the inside is threadedly connected to the cover 22 at the rear end. When the sending and receiving ball cylinder has a ventilation demand, the cover 22 is opened, and the rear end of the operating rod 2 is connected to the blower through a connecting tube such as a plastic tube, so that the gas flows from one end of the operating rod 2 to the other end, thereby realizing the ventilation operation of the sending and receiving ball cylinder. In order to improve the ventilation effect, further, a ventilation tube 46 is connected to the head end of the operating rod 2, and a plurality of through holes are provided on the side wall of the ventilation tube 46 to realize the change of the direction of the airflow introduced into the operating rod 2, and to facilitate the blowing of the inner wall of the sending and receiving ball cylinder by the airflow.

[0033] Specifically, the hook 42 is used to hook the pipe cleaner in the sending and receiving ball barrel; the spiral needle 43 is used to rotate and insert the pipe cleaner made of foam or soft plastic material, so as to drag and remove the pipe cleaner that is stuck or has no hook; the shovel 44 includes an arc-shaped plate, which is used to fit with the inner wall of the sending and receiving ball barrel to clean and remove the accumulated impurities in the sending and receiving ball barrel; the magnetic suction part 45 includes a permanent magnet, which is used to absorb the metal pipe cleaner that is difficult to hook and drag it out.

[0034] Example 3 The present embodiment is a ball serving and receiving auxiliary device. Based on the embodiment 1, the tool part includes a functional rod 48, a hanging ring 47 is connected to the functional rod 48 or a strap 49 is wrapped around it, and a storage bag is provided on the strap 49. The hanging ring 47 and the storage bag are used to limit and fix the detection mechanism 7, and the detection mechanism 7 includes one or more of a camera mechanism, a detection instrument and a lighting mechanism.

[0035] The present embodiment is a ball receiving and sending operation auxiliary device, wherein the function rod 48 includes a solid rod or a hollow rod, one end of the function rod 48 is connected to the operating rod 2 through a connecting portion 41, and a limit block is set at the other end according to actual conditions, so that a rod portion with a relatively reduced diameter is formed between the limit block and the operating rod 2, and a hanging ring 47 is fixed to the function rod 48 by a clamping hoop mechanism or connected to the function rod 48 by connecting screws and other connecting parts, and the hanging ring 47 can be used to hang the detection mechanism 7 to be sent into the sending and sending ball cylinder, for example, to mount a combustible gas detection instrument to detect whether there is combustible gas in the sending and sending ball cylinder, so as to determine whether hot work involving the sending and sending ball cylinder can be carried out; the binding strap 49 is fixed to the function rod 48 by winding, and a storage bag is set on the binding strap 49 to be used for containing and fixing the detection mechanism 7, for example, to contain an explosion-proof lamp to illuminate the inside of the sending and sending ball cylinder for the convenience of observation by operators.

[0036] Preferably, the strap 49 comprises a belt-shaped structural member with Velcro, a binding rope is provided on the strap 49 according to actual conditions, and an elastic rubber storage bag is provided on the strap 49 to achieve the binding and fixation of the detection mechanism 7.

[0037] Preferably, the detection mechanism 7 is connected to a display mechanism, and the display mechanism is arranged on the mobile vehicle 1. The display mechanism can be a screen connected to the camera mechanism for enabling the operator to visually observe the conditions inside the sending and receiving tube outside the sending and receiving tube. The display mechanism can also be a data display connected to the detection instrument for enabling the operator to timely obtain the environmental parameters inside the sending and receiving tube outside the sending and receiving tube, providing the operator with a basis for operation. Different detection mechanisms can be used according to actual conditions to realize the detection requirements of different operating environments inside the sending and receiving tube.

[0038] Preferably, a crank mechanism is provided at the tail end of the operating rod 2. The crank mechanism in this embodiment is provided to rotate the operating rod 2 so that the detection mechanism 7 on the operating rod 2 can be rotated to a suitable position to achieve accurate detection of different positions in the sending and receiving tube.

[0039] Example 4 A method for using a ball receiving and serving operation auxiliary device comprises the above-mentioned ball receiving and serving operation auxiliary device, and comprises the following steps: S1, moving the mobile trolley 1 to the position of the barrel mouth of the ball receiving and serving cylinder and aligning it; S2, passing the hollow rod segment 21 connected with the tool head 4 through the support hole, and connecting the sliding support mechanism 8 on the side of the hollow rod segment 21 close to the ball receiving and serving cylinder; S3, starting the hydraulic cylinder 6 to push the hollow rod segment 21 toward the ball receiving and serving cylinder, until the tail end of the hollow rod segment 21 is close to the support frame 5; S4, retreating the hydraulic cylinder 6, and connecting a new hollow rod segment 21 to the tail end of the previous hollow rod segment 21; S5, looping S3-S4 until the tool head 4 reaches the working position and works, and the work includes one or more of taking the device, cleaning, and detecting; S6, after the work is completed, connecting the hydraulic cylinder 6 and the operating rod 2, pulling the operating rod 2 backward, and disassembling the hollow rod segments 21 section by section.

[0040] The method for using a ball receiving and sending operation auxiliary device of the present embodiment controls the movement of the operating rod 2 through the hydraulic cylinder 6, so that the auxiliary device is labor-saving to use, and can reduce the manpower requirements in the process of removing or sending the pipe cleaner, and can clean, detect and other operations in the ball receiving and sending cylinder through the operating rod 2 connected to the tool head 4, so that the auxiliary device can adapt to different working environments, can be used to assist in the removal and placement of the pipe cleaner, and can also assist in the use of various detection mechanisms 7, and can be applied to ball receiving and sending cylinders of different types and signals to meet various operational requirements of ball receiving and sending operations.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ball receiving and serving auxiliary device, characterized in that: The invention comprises a movable vehicle (1) and an operating rod (2), wherein the movable vehicle (1) is provided with a working platform (11), the operating rod (2) is provided on the working platform (11) and can be moved into and / or out of a ball-receiving and sending cylinder along the working platform (11), the front end of the operating rod (2) is detachably connected to a tool head (4), the tool head (4) comprises a connecting portion (41) and a tool portion, and the connecting portion (41) is detachably connected to the operating rod (2).

2. A ball receiving and serving auxiliary device as claimed in claim 1, characterized in that: The working platform (11) is provided with a support frame (5) and a hydraulic cylinder (6); the support frame (5) is provided with a support hole adapted to the operating rod (2); and the hydraulic cylinder (6) is arranged opposite to the support hole.

3. The ball receiving and serving auxiliary device according to claim 1, characterized in that: The operating rod (2) comprises a plurality of hollow rod segments (21) that are spliced ​​together; the tail end of the operating rod (2) can be detachably connected to the air supply mechanism; and a sealing cover (22) is provided at the tail end of the operating rod (2).

4. A ball receiving and serving auxiliary device as claimed in claim 3, characterized in that: The mobile trolley (1) is provided with a storage box (3), a plurality of limit grooves for clamping and fixing the hollow rod segment (21) are arranged in the storage box (3), and the storage box (3) is provided with a storage space for storing the tool head (4).

5. The ball receiving and serving auxiliary device according to claim 4, characterized in that: A lifting mechanism (12) is arranged below the working platform (11), and the storage box (3) is arranged at the bottom or side of the working platform (11).

6. A ball receiving and serving auxiliary device as claimed in any one of claims 1 to 5, characterized in that: The tool part comprises any one of a curved hook (42), a spiral needle (43), a shovel (44), a magnetic attraction piece (45), and a breathable tube (46).

7. A ball receiving and serving auxiliary device as claimed in any one of claims 1 to 5, characterized in that: The tool part comprises a functional rod (48), the functional rod (48) is connected to a hanging ring (47) or is wrapped with a strap (49), the strap (49) is provided with a storage bag, and the hanging ring (47) and the storage bag are used for limiting the position and fixing the detection mechanism (7).

8. The ball receiving and serving auxiliary device according to claim 7, characterized in that: The detection mechanism (7) comprises one or more of a camera mechanism, a detection instrument and a lighting mechanism. The detection mechanism (7) is connected to a display mechanism, and the display mechanism is arranged on the mobile vehicle (1).

9. The ball receiving and serving auxiliary device according to claim 8, characterized in that: The rear end of the operating rod (2) is equipped with a crank mechanism, and the front end is equipped with a sliding support mechanism (8).

10. A method for using a ball receiving and serving auxiliary device, characterized in that: The device comprises a ball receiving and serving auxiliary device as claimed in claim 9, and comprises the following steps: S1, move the mobile trolley (1) to the opening of the sending and receiving cylinder and align it; S2, passing the hollow rod segment (21) connected to the tool head (4) through the support hole, and connecting the sliding support mechanism (8) to the side of the hollow rod segment (21) close to the ball receiving and sending cylinder; S3, starting the hydraulic cylinder (6) to push the hollow rod segment (21) toward the ball receiving and sending cylinder until the rear end of the hollow rod segment (21) is close to the support frame (5); S4, retreat the hydraulic cylinder (6) and connect a new hollow rod segment (21) to the tail end of the previous hollow rod segment (21); S5, looping S3-S4 until the tool head (4) reaches the working position and starts working, wherein the working includes one or more of taking out the tool, cleaning, and detecting; S6. After the work is completed, the hydraulic cylinder (6) is connected to the operating rod (2), the operating rod (2) is pulled backward, and the hollow rod segments (21) are disassembled section by section.

Images