Pipeline grabbing tool with replaceable grabbing head

Abstract

The utility model discloses a pipeline grabbing tool with a replaceable grabbing head, which comprises a big arm and further comprises a claw changing mechanism, the claw changing mechanism is arranged on the surface of the big arm, and the claw changing mechanism comprises a storage box, a cross arm, a fixed ring, a movable arm, a fixed pipe, a connecting shaft, a positioning seat, a bolt and a pipeline clamping claw. The periphery of the large arm is sleeved with a containing box for containing pipeline clamping jaws of different specifications, a cross arm is inserted into the large arm, and a fixing ring is welded to the end of the outer wall of the cross arm, when the pipeline clamping jaws need to be replaced, a plug pin is pulled out, and the movable arm can rotate around the connecting shaft to be close to the side edge of the cross arm; and then the cross arm is controlled to contract to drive the mounting end of the movable arm to approach the storage box, the pipeline clamping jaw can be disassembled and replaced, and in the replacement process, due to the fact that the mounting end is close to the storage box, operation is more convenient, time and labor are saved, and long-distance carrying is not needed.

Description

Technical Field

[0001] This utility model relates to the field of pipeline transportation technology, and in particular to a pipeline gripping tool with a replaceable gripping head. Background Technology

[0002] Pipelines are important facilities widely used in industry, construction and daily life. They are mainly used to transport gases, liquids or fluids containing solid particles. During the production, relocation and laying of pipelines, gripping equipment is needed to grip them to facilitate the transfer of pipelines.

[0003] Existing gripping equipment has the following drawbacks: Using a robotic arm to control the gripping head is a common method for pipe gripping. In actual use, it is often necessary to change the appropriate gripping head according to different pipe outer diameter specifications. Existing gripping heads are generally replaced manually by carrying them to the robotic arm installation end and disassembling them. The operation process is complicated, manual handling is time-consuming and labor-intensive, and the disassembled gripping head also needs to be carried to the storage location, which is very inconvenient. Therefore, we propose a pipe gripping tool with a replaceable gripping head. Utility Model Content

[0004] The main objective of this invention is to provide a pipe gripping tool with a replaceable gripping head. By using a gripper-changing mechanism on the surface of the boom, the pipe grippers can be replaced more conveniently, saving time and effort, and effectively solving the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A pipe gripping tool with replaceable gripping heads includes a main arm and a gripper changing mechanism. The gripper changing mechanism is provided on the surface of the main arm. The gripper changing mechanism includes a storage box, a horizontal arm, a fixed ring, a movable arm, a fixed tube, a connecting shaft, a positioning seat, a pin, and pipe grippers. A storage box for storing pipe grippers of different specifications is sleeved on the outer periphery of the main arm. A horizontal arm is inserted into the main arm, and a fixed ring is welded to the end of the outer wall of the horizontal arm. A movable arm is movably connected to the end of the horizontal arm, and a fixed tube inserted between the fixed ring and the outer wall of the movable arm is welded to the end of the movable arm. A connecting shaft is inserted between the fixed ring and the fixed tube. A positioning seat is welded to the end of the movable arm near the horizontal arm and inserted into the horizontal arm, and a pin is inserted between the positioning seat and the horizontal arm. A pipe gripper is detachably connected to the end of the movable arm away from the horizontal arm by bolts.

[0007] Furthermore, it also includes an adjustment mechanism. An adjustment mechanism is provided at the connection between the boom and the crossarm. The adjustment mechanism includes a hydraulic cylinder, a piston rod, a connecting rod, a crossbar, and a connecting plate. The hydraulic cylinder is horizontally mounted on the side of the boom via clamps, and a piston rod is provided at the power output end of the hydraulic cylinder. A connecting rod is detachably connected to the end of the piston rod away from the hydraulic cylinder, and a crossbar is welded to the end of the connecting rod. A connecting plate is welded to the end of the crossbar away from the connecting rod, and the connecting plate is welded to the surface of the crossarm. The hydraulic cylinder is horizontally fixed to the side of the boom via clamp assembly. After the hydraulic cylinder is installed, the piston rod end and the connecting rod end are connected and fixed at its power end via bolt assembly, thereby fixing the connecting rod and the piston rod together. The connecting plate is fixed to the end of the connecting rod via the crossbar. When the connecting rod is installed in place, the connecting plate fits perfectly against the side of the movable arm. The assembly is completed by welding the connecting plate to the side of the movable arm. During operation, the hydraulic station is controlled by an external control component, which in turn controls the operation of the hydraulic cylinder. The extension and retraction of the piston rod drives the extension and retraction of the crossarm.

[0008] Furthermore, a mounting plate for connection with the load-bearing component is welded to the end of the boom away from the cross arm, and the mounting plate has mounting holes inside; the mounting plate fixed to the end of the boom and the mounting holes inside the mounting plate facilitate the connection of fasteners with the load-bearing component.

[0009] Furthermore, the storage box has a storage cavity facing the movable arm, and a hanging rod for hanging pipe clamps is welded inside the storage cavity; hanging rod assemblies are distributed inside the storage cavity, and pipe clamps of different specifications can be hung on the hanging rods.

[0010] Furthermore, the positioning seat has limit holes at the corresponding positions on the top of the horizontal arm, and the pin is inserted into the limit holes. When the end of the movable arm is connected to the end of the horizontal arm, the limit holes inside the positioning seat are aligned with the limit holes inside the horizontal arm. The position of the movable arm can be fixed by inserting the pin at the connection.

[0011] Furthermore, an end plate is welded to the end of the connecting rod away from the crossbar, and the end plate is fixed to the end of the piston rod by bolts. Horizontal grooves are provided on both sides of the main arm, and the horizontal grooves correspond to the positions of the fixed tube and the connecting plate, respectively. The connecting rod is connected to the end of the piston rod by the end plate and the bolt fastening assembly. The horizontal groove structure design allows the components on both sides of the crossbar to be inserted into the horizontal groove when the crossbar retracts, without affecting the retraction.

[0012] Compared with the prior art, this utility model has the following advantages: The main arm is fixed to the mounting end of the bearing component through a connecting device. After fixing, the electrical and hydraulic control pipelines can be connected to complete the assembly. By controlling the movement of the main arm and the horizontal arm, the pipe gripper is driven to perform the pipe gripping operation. Different specifications of common pipe grippers are stored inside the storage box. Under normal working conditions, the ends of the movable arm and the horizontal arm are connected together. The movable arm and the ends of the horizontal arm are connected by a fixing ring, a fixing pipe, and a connecting shaft to form a rotating connection assembly. When the pipe gripper needs to be replaced, the pin is pulled out. At this time, the movable arm can rotate around the position of the connecting shaft, so that the surface of the movable arm is close to the side of the horizontal arm. Then, the horizontal arm is controlled to retract, driving the mounting end of the movable arm to move closer to the side of the storage box, so that the pipe gripper can be disassembled and replaced. During the process, whether it is the installation of new pipe clamps or the storage of old pipe clamps, the operation is more convenient, time-saving and labor-saving because the installation end and the storage box are close together. There is no need for long-distance transportation. After the replacement is completed, the movable arm can be reset and locked. The hydraulic cylinder is horizontally fixed to the side of the boom by the clamp assembly. After the hydraulic cylinder is installed, the piston rod end and the connecting rod end are connected and fixed at its power end by the bolt assembly, thereby fixing the connecting rod and the piston rod together. The connecting rod end is fixed with a connecting plate by the crossbar. When the connecting rod is installed in place, the connecting plate fits perfectly against the side of the movable arm. The assembly is completed by welding the connecting plate to the side of the movable arm. During operation, the hydraulic station is controlled by the external control component, which in turn controls the operation of the hydraulic cylinder. The extension and retraction of the piston rod drives the extension and retraction of the cross arm. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the movable arm of the pipe gripping tool with replaceable gripping head according to the present invention, in the extended state.

[0014] Figure 2 This is a schematic diagram of the movable arm of a pipe gripping tool with replaceable gripping heads according to the present invention, in the folded state.

[0015] Figure 3 This is a schematic diagram of the internal structure of the connection between the movable arm and the cross arm of a pipe gripping tool with a replaceable gripping head according to this utility model.

[0016] Figure 4 This is a schematic diagram of the connection surface structure at the connection between the movable arm and the cross arm of a pipe gripping tool with a replaceable gripping head according to this utility model.

[0017] Figure 5 This is a schematic diagram of the internal structure of the locking end at the connection between the movable arm and the cross arm of a pipe gripping tool with a replaceable gripping head according to this utility model.

[0018] Figure 6This is a schematic diagram of the hydraulic cylinder installation structure of a pipe gripping tool with a replaceable gripping head according to the present invention.

[0019] Figure 7 This is a schematic diagram of the linkage structure of a pipe gripping tool with a replaceable gripping head according to the present invention.

[0020] Figure 8 This is a schematic diagram of the storage box structure of a pipe gripping tool with replaceable gripping heads according to the present invention.

[0021] In the diagram: 1. Main arm; 2. Claw changing mechanism; 201. Mounting plate; 202. Mounting hole; 203. Storage box; 204. Storage cavity; 205. Hanging rod; 206. Horizontal arm; 207. Fixing ring; 208. Movable arm; 209. Fixing tube; 210. Coupling shaft; 211. Positioning seat; 212. Limiting hole; 213. Pin; 214. Pipe clamp; 3. Adjustment mechanism; 301. Hydraulic cylinder; 302. Piston rod; 303. Connecting rod; 304. End plate; 305. Crossbar; 306. Connecting plate; 307. Horizontal groove. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1-8 As shown, a pipe gripping tool with replaceable gripping heads includes a large arm 1 and a gripper changing mechanism 2. The gripper changing mechanism 2 is provided on the surface of the large arm 1. The gripper changing mechanism 2 includes a storage box 203, a horizontal arm 206, a fixing ring 207, a movable arm 208, a fixing tube 209, a connecting shaft 210, a positioning seat 211, a pin 213, and pipe grippers 214. The storage box 203, which stores pipe grippers 214 of different specifications, is sleeved around the outer periphery of the large arm 1. The horizontal arm 206 is inserted into the large arm 1, and a fixing pin is welded to the end of the outer wall of the horizontal arm 206. Ring 207, the end of the cross arm 206 is movably connected to a movable arm 208, and the outer end of the movable arm 208 is welded with a fixing tube 209 inserted between the fixed ring 207 and the fixed tube 209. A connecting shaft 210 is inserted between the fixed ring 207 and the fixing tube 209. The end of the movable arm 208 near the cross arm 206 is welded with a positioning seat 211 inserted into the cross arm 206, and a pin 213 is inserted between the positioning seat 211 and the cross arm 206. The end of the movable arm 208 away from the cross arm 206 is detachably connected to a pipe clamp 214 by bolts.

[0024] The system also includes an adjustment mechanism 3, which is installed at the connection between the boom 1 and the crossarm 206. The adjustment mechanism 3 includes a hydraulic cylinder 301, a piston rod 302, a connecting rod 303, a crossarm 305, and a connecting plate 306. The hydraulic cylinder 301 is horizontally mounted on the side of the boom 1 via clamps, and the piston rod 302 is fitted to the power output end of the hydraulic cylinder 301. The end of the piston rod 302 away from the hydraulic cylinder 301 is detachably connected to the connecting rod 303, and the end of the connecting rod 303 is welded to the crossarm 305. The end of the crossarm 305 away from the connecting rod 303 is welded to the connecting plate 306, and the connecting plate 306 is welded to the surface of the crossarm 206. The hydraulic cylinder 301 is connected to the boom 206 via the clamp assembly. The hydraulic cylinder 301 is fixed to the side of the boom 1. After the hydraulic cylinder 301 is installed, the piston rod 302 end is connected to the connecting rod 303 end by bolt assembly at its power end, thereby fixing the connecting rod 303 and the piston rod 302 together. The connecting rod 303 end is fixed with a connecting plate 306 by a crossbar 305. When the connecting rod 303 is installed in place, the connecting plate 306 fits perfectly against the side of the movable arm 208. The assembly is completed by welding the connecting plate 306 to the side of the movable arm 208. During operation, the hydraulic station is controlled by an external control component, which in turn controls the operation of the hydraulic cylinder 301. The extension and retraction of the piston rod 302 drives the extension and retraction of the crossbar 206.

[0025] The end of the upper arm 1 away from the horizontal arm 206 is welded with a mounting plate 201 connected to the load-bearing component. The mounting plate 201 has a mounting hole 202 inside. The storage box 203 has a storage cavity 204 on the side facing the movable arm 208. The storage cavity 204 has a hanging rod 205 for hanging pipe clamps 214. The mounting plate 201 fixed to the end of the upper arm 1 and the mounting hole 202 inside the mounting plate 201 facilitate the connection of fasteners with the load-bearing component. The storage cavity 204 has hanging rod 205 components distributed inside, through which pipe clamps 214 of different specifications can be hung.

[0026] The positioning seat 211 has a limiting hole 212 at the corresponding position of the top of the cross arm 206. The pin 213 is inserted into the limiting hole 212. When the end of the movable arm 208 is connected to the end of the cross arm 206, the limiting hole 212 inside the positioning seat 211 is aligned with the limiting hole 212 inside the cross arm 206. The position of the movable arm 208 can be fixed by inserting the pin 213 at the connection.

[0027] The connecting rod 303 has an end plate 304 welded to the end away from the crossbar 305, and the end plate 304 is fixed to the end of the piston rod 302 by bolts. The two sides of the upper arm 1 are provided with transverse grooves 307, which correspond to the positions of the fixed tube 209 and the connecting plate 306 respectively. The connecting rod 303 is connected to the end of the piston rod 302 through the end plate 304 and the bolt fastening assembly. The transverse groove 307 is designed so that when the crossbar 206 retracts, the components on both sides can be inserted into the transverse groove 307 without affecting the retraction.

[0028] It should be noted that this utility model is a pipe gripping tool with replaceable gripping heads. In use, the main arm 1 is fixed to the mounting end of the supporting component via a connecting device. After fixing, the electrical and hydraulic control lines are connected to complete the assembly. The movement of the main arm 1 and the horizontal arm 206 drives the pipe grippers 214 to grip the pipe. Different sizes of common pipe grippers 214 are stored inside the storage box 203. Under normal operating conditions, the movable arm 208 and the end of the horizontal arm 206... The movable arm 208 and the horizontal arm 206 are connected together. A rotating connection assembly is formed between the ends of the movable arm 208 and the horizontal arm 206 via a fixing ring 207, a fixing tube 209, and a connecting shaft 210. When the pipe clamp 214 needs to be replaced, the pin 213 is pulled out. At this time, the movable arm 208 can rotate around the connecting shaft 210, bringing the surface of the movable arm 208 closer to the side of the horizontal arm 206. Then, the horizontal arm 206 is retracted, causing the mounting end of the movable arm 208 to move closer to the storage box 203, allowing for the removal and replacement of the pipe clamp 214. During the replacement process, whether it's installing the new pipe clamp 214 or storing the old pipe clamp 214, the proximity of the installation end and the storage box 203 makes the operation more convenient, saving time and effort, and eliminating the need for long-distance transportation. After replacement, the movable arm 208 can be reset and locked in place. The hydraulic cylinder 301 is horizontally fixed to the side of the boom 1 via a clamp assembly. After the hydraulic cylinder 301 is installed, the piston rod 302 end is connected and fixed to the connecting rod 303 end via a bolt assembly at its power end. Then, the connecting rod 303 and the piston rod 302 are fixed together. The end of the connecting rod 303 is fixed with a connecting plate 306 through the crossbar 305. When the connecting rod 303 is installed in place, the connecting plate 306 fits perfectly against the side of the movable arm 208. The assembly is completed by welding the connecting plate 306 to the side of the movable arm 208. During operation, the hydraulic station is controlled by the external control components, which in turn controls the operation of the hydraulic cylinder 301. The extension and retraction of the piston rod 302 drives the extension and retraction of the crossbar 206.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe gripping tool with exchangeable gripping head, comprising a main arm (1), characterized in that, It also includes a claw-changing mechanism (2). The claw-changing mechanism (2) is provided on the surface of the upper arm (1). The claw-changing mechanism (2) includes a storage box (203), a horizontal arm (206), a fixing ring (207), a movable arm (208), a fixing tube (209), a connecting shaft (210), a positioning seat (211), a pin (213), and pipe clamps (214). The storage box (203) for storing pipe clamps (214) of different specifications is sleeved on the outer periphery of the upper arm (1). A horizontal arm (206) is inserted into the upper arm (1), and a fixing ring (207) is welded to the end of the outer wall of the horizontal arm (206). The horizontal arm (208) is... 06) An movable arm (208) is movably connected to the end, and a fixed tube (209) inserted into the fixed ring (207) is welded to the outer end of the movable arm (208). A connecting shaft (210) is inserted between the fixed ring (207) and the fixed tube (209). A positioning seat (211) inserted into the horizontal arm (206) is welded to the end of the movable arm (208) near the horizontal arm (206), and a pin (213) is inserted between the positioning seat (211) and the horizontal arm (206). A pipe clamp (214) is detachably connected to the end of the movable arm (208) away from the horizontal arm (206) by bolts.

2. A pipe gripping tool according to claim 1, wherein: It also includes an adjustment mechanism (3). An adjustment mechanism (3) is provided at the connection between the boom (1) and the cross arm (206). The adjustment mechanism (3) includes a hydraulic cylinder (301), a piston rod (302), a connecting rod (303), a cross bar (305), and a connecting plate (306). The hydraulic cylinder (301) is installed horizontally on the side of the boom (1) by a clamp, and the piston rod (302) is provided at the power output end of the hydraulic cylinder (301). The piston rod (302) is detachably connected to the connecting rod (303) at the end away from the hydraulic cylinder (301), and the cross bar (305) is welded to the end of the connecting rod (303). The connecting plate (306) is welded to the end of the cross bar (305) away from the connecting rod (303), and the connecting plate (306) is welded to the surface of the cross arm (206).

3. The tool of claim 1, wherein: The end of the upper arm (1) away from the cross arm (206) is welded with a mounting plate (201) that is connected to the load-bearing component, and the mounting plate (201) has mounting holes (202) inside.

4. The tool of claim 1, wherein: The storage box (203) has a storage cavity (204) on the side facing the movable arm (208), and a hanging rod (205) for hanging pipe clamps (214) is welded inside the storage cavity (204).

5. The tool of claim 1, wherein: Limiting holes (212) are provided inside the positioning seat (211) and at the corresponding position of the top of the cross arm (206), and the pin (213) is inserted into the limiting hole (212).

6. The tool of claim 2, wherein: The connecting rod (303) has an end plate (304) welded to the end away from the crossbar (305), and the end plate (304) is fixed to the end of the piston rod (302) by bolts. The upper arm (1) has transverse grooves (307) on both sides, and the transverse grooves (307) correspond to the positions of the fixed tube (209) and the connecting plate (306) respectively.

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