Petroleum pipeline spraying equipment

Abstract

The invention relates to the field of pipeline machining, and discloses petroleum pipeline spraying equipment which comprises supporting seats, three sets of telescopic moving assemblies are correspondingly arranged on the two supporting seats, and a linkage mechanism enabling the moving assemblies to stretch or retract at the same time is jointly arranged on the moving assemblies with every two moving assemblies as one set. The linkage mechanism driven by the stretching driving mechanism to work drives other linkage mechanisms to work by driving linkage pieces, the linkage mechanisms without driving force are connected through correspondingly arranged auxiliary linkage pieces, and the auxiliary linkage pieces are provided with moving driving pieces capable of driving equipment to move. Compared with the prior art, the device has the beneficial effects that the movement speed detection mechanism detects the movement speed of the device in real time through the light source, the code channel and the light sensor and transmits data to the controller; the controller drives the rotating speed of the spraying device and the material output quantity, spiral spraying is achieved, uneven spraying is avoided, and spraying leakage is reduced.

Description

Technical Field

[0001] The present invention relates to the field of pipeline processing, and specifically refers to an oil pipeline spraying device. Background Art

[0002] During the long-term use of oil pipelines, the inner walls are vulnerable to damage such as corrosion and wear. Spraying a protective coating is an important means to extend the pipeline life. The existing oil pipeline spraying devices have the following problems in practical applications: Insufficient spraying uniformity: Traditional spraying devices mostly use fixed nozzles or simple reciprocating motion spraying. It is difficult to dynamically adjust the nozzle rotation speed and paint output according to the equipment moving speed, which easily leads to problems such as uneven coating thickness, missed spraying, etc. Especially in the curved surface environment of the pipeline inner wall, it is difficult to ensure the spraying accuracy.

[0003] Lack of moving speed detection and dynamic adjustment ability: When the equipment moves inside the pipeline, the actual moving speed may fluctuate due to inner wall friction, slope change or power component slipping. However, the existing equipment lacks a mechanism for real-time detecting the moving speed and adaptively adjusting the spraying parameters, and cannot cope with complex pipeline environments, which easily causes the coating to be too thick or too thin.

[0004] Low cooperation efficiency of multiple components: The drive systems of components such as support, movement, and spraying are relatively independent, and the stretching and contracting actions are not synchronized. The operation is complex and the reliability is insufficient, which is difficult to meet the high-efficiency cooperation requirements of automatic spraying. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above difficulties and provide an oil pipeline spraying device.

[0006] An oil pipeline spraying device includes a support base. A controller is arranged on the support base. Three groups of connecting rods are connected between the two support bases, and three groups of telescopic moving components are correspondingly arranged on both support bases. A linkage mechanism for simultaneously stretching or contracting the moving components is commonly provided on two moving components as a group. An extension driving mechanism for driving the three groups of moving components to stretch or contract by driving one of the linkage mechanisms is commonly provided on the two support bases. The linkage mechanism driven by the extension driving mechanism drives other linkage mechanisms to work by driving a linkage part. The linkage mechanisms without driving force are connected by correspondingly arranged auxiliary linkage parts. A moving driving part capable of driving the equipment to move is arranged on the auxiliary linkage part. The moving driving part simultaneously performs stretching or contracting work with the moving components under the drive of the auxiliary linkage part; A moving speed detection mechanism capable of detecting the moving speed of the equipment is arranged on one group of moving components. A spraying device for spiral spraying is commonly arranged inside the two support bases. The spraying device drives the rotation speed and material output of the spraying device according to the moving speed of the equipment detected by the moving speed detection mechanism.

[0007] As an improvement, the moving component includes a first articulated rod hinged to the support base. One end of the first articulated rod is hinged to a second articulated rod, and one end of the second articulated rod is hinged to a connecting member. A driven roller is provided on the connecting member. The linkage mechanism adjusts the connection between the first articulated rod and the second articulated rod to move radially along the oil pipeline, thereby adjusting the distance between the driven roller and the support base so that the driven roller can contact the inner wall of the oil pipeline.

[0008] As an improvement, the linkage mechanism includes a limiting member and a central block. The limiting member is provided at the connection part of the first articulated rod and the second articulated rod. Plug rods that are slidably inserted into the limiting member are provided at both ends of the central block. A transmission rod is correspondingly hinged to the central block. Transmission blocks are hinged to the ends of the two transmission rods. The transmission block on the driving linkage mechanism is driven by an extension driving mechanism. At this time, the transmission block drives the central block to move radially closer to or away from the support base through the transmission rod.

[0009] As an improvement, the driving linkage member includes a second linkage member body that is slidably sleeved on the connecting rod. One end of the second linkage member body is connected to the transmission block driven by the extension driving mechanism, and the other end is hinged to the transmission block on the non-driven linkage mechanism. The auxiliary linkage member includes a first linkage member body that is slidably sleeved on the connecting rod. Both ends of the first linkage member body are hinged to the transmission blocks on the two non-driven linkage mechanisms through hinge seats one.

[0010] As an improvement, the moving driving member includes two third articulated rods that are hinged to each other at the central position. Hinge seats two that are hinged to the third articulated rods are provided on the corresponding first linkage member bodies. A driving roller is provided at the end of the third articulated rod, and a first transmission wheel is provided at the end of the driving roller. A power mechanism that simultaneously drives the two driving rollers to rotate is provided on one of the third articulated rods.

[0011] As an improvement, the moving speed detection mechanism includes a fixed seat fixed to the connecting member. Light sources with opposite irradiation directions and facing the driven roller are correspondingly provided on the fixed seat. A plurality of code tracks are evenly provided on the driven roller of the moving component where the moving speed detection mechanism is located. A cover shell that is sleeved outside the driven roller is fixed to the connecting member. A light barrier plate is provided inside the cover shell. The driven roller is located between the light barrier plate and the light source. A light sensor is provided at the end of the cover shell.

[0012] As an improvement, the spraying device includes a storage cylinder that is simultaneously located in the two support bases. One end of the storage cylinder is connected to a feed joint, and a feed pump is provided at the other end. A rotary joint is provided at the output end of the feed pump. An output joint is provided at the output end of the rotary joint. A spraying pipe is provided at the end of the output joint. The rotary joint includes a fixed head and a rotating head. The fixed head is connected to the feed pump. A driven gear is fixed to the rotating head. The driven gear is driven to rotate by a second driving device provided on the support base.

[0013] The beneficial effects of the present invention compared with the prior art are as follows: 1. Precise adjustment of spraying parameters to improve spraying uniformity: The moving speed detection mechanism detects the moving speed of the equipment in real time through a light source, a code track, and a light sensor, and transmits the data to the controller. The controller drives the rotation speed and the material output of the spraying device to achieve spiral spraying, avoiding uneven spraying, less spraying, and leakage spraying.

[0014] 2. Synchronous telescopic assembly, adapting to the pipeline and maintaining the central position: The extension driving mechanism drives the linkage mechanism. Through the lead screw, the gear ring, and the driving linkage, it drives the driven rollers of all moving components and the driving rollers of the moving driving components to extend or contract synchronously, ensuring contact with the inner wall of the pipeline, keeping the equipment at the center of the pipeline, and providing stable support and movement.

[0015] 3. Slip and speed change adaptability, dynamically adjusting the spraying accuracy: The driven roller rolls without power, and its rotation speed truly reflects the moving speed of the equipment. The moving speed detection mechanism detects based on this. When the driving roller slips or the equipment accelerates when going downhill on the pipeline, the controller adjusts the output power of the spraying device to avoid over-thick or over-thin spraying and ensure uniformity.

[0016] 4. Linkage drive, multiple components acting synchronously: After the extension driving mechanism drives a single linkage mechanism, through the driving linkage and the auxiliary linkage, it drives all linkage mechanisms to work synchronously, enabling the moving components and the moving driving components to extend and contract simultaneously, simplifying the operation, and ensuring the coordinated operation of all components.

[0017] 5. Stable power transmission and movement: The driving motor of the moving driving component drives the driving roller to rotate through the driving wheel and the transmission belt. The auxiliary linkage ensures that the driving roller and the driven roller move in the same amplitude, providing a stable driving force, adapting to the inner wall environment of the pipeline, and ensuring the smooth movement of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an oil pipeline spraying device of the present invention.

[0019] Figure 2 It is a schematic diagram of the equipment structure of an oil pipeline spraying device of the present invention Figure 1 .

[0020] Figure 3 It is a schematic diagram of the equipment structure of an oil pipeline spraying device of the present invention Figure 2 .

[0021] Figure 4 It is a schematic diagram of the disassembled equipment structure of an oil pipeline spraying device of the present invention Figure 1 .

[0022] Figure 5 It is a schematic diagram of the disassembled equipment structure of an oil pipeline spraying device of the present inventionFigure 2 .

[0023] Figure 6 It is a schematic diagram of a partial structure of an oil pipeline spraying device of the present invention.

[0024] Figure 7 It is a schematic diagram of a partial structure II of an oil pipeline spraying device of the present invention.

[0025] Figure 8 It is a schematic diagram of the moving driving part structure of an oil pipeline spraying device of the present invention.

[0026] Figure 9 It is a schematic diagram of the split structure of the moving speed detection mechanism of an oil pipeline spraying device of the present invention Figure 1 .

[0027] Figure 10 It is a schematic diagram of the moving speed detection mechanism of an oil pipeline spraying device of the present invention Figure 2 .

[0028] Figure 11 It is a schematic diagram of the spraying device of an oil pipeline spraying device of the present invention Figure 1 .

[0029] Figure 12 It is a schematic diagram of the spraying device of an oil pipeline spraying device of the present invention Figure 2 .

[0030] As shown in the figure: 1. Support base; 2. Link; 3. Moving component; 301. First articulated rod; 302. Second articulated rod; 303. Connecting piece; 304. Driven roller; 21. Linkage mechanism; 211. Limiting piece; 212. Central block; 213. Insert rod; 214. Transmission rod; 215. Transmission block; 31. Auxiliary linkage; 311. First linkage body; 312. First hinge seat; 313. Second hinge seat; 41. Extension driving mechanism; 411. First driving device; 412. Gear ring; 413. Lead screw; 414. Transmission gear; 51. Moving driving part; 511. Third articulated rod; 512. Driving roller; 513. First transmission wheel; 514. Driving motor; 515. Driving wheel; 516. Bearing seat; 517. Second transmission wheel; 518. Transmission belt; 61. Moving speed detection mechanism; 611. Fixed seat; 612. Light source; 613. Coding track; 614. Housing; 615. Light barrier plate; 616. Light sensor; 71. Spraying device; 711. Storage barrel; 712. Feeding joint; 713. Feed pump; 714. Rotary joint; 715. Discharge joint; 716. Spraying pipe; 717. Driven gear; 718. Second driving device; 81. Driving linkage; 811. Second linkage body; 812. Collar. Detailed implementation mode

[0031] The following further describes the present invention in detail with reference to the accompanying drawings. In combination with the attached Figure 1 , attached Figure 2 , attached Figure 3 , attached Figure 4 , attached Figure 5 as shown: An oil pipeline spraying device includes a support base 1, a controller is arranged on the support base 1, three groups of connecting rods 2 are connected between the two support bases 1, and three groups of telescopic moving components 3 are correspondingly arranged on each of the two support bases 1. A linkage mechanism 21 for simultaneously extending or contracting two correspondingly arranged moving components 3 is commonly provided on the two moving components 3 arranged in a group of two. An extension driving mechanism 41 for extending or contracting the moving components 3 by driving one of the linkage mechanisms 21 is commonly provided on the two support bases 1. The linkage mechanism 21 driven by the extension driving mechanism 41 drives other linkage mechanisms 21 to work by driving a linkage member 81. The linkage mechanisms 21 without driving force are connected by correspondingly arranged auxiliary linkage members 31. A moving driving member 51 capable of driving the device to move is provided on the auxiliary linkage member 31. The moving driving member 51 extends or contracts simultaneously with the moving components 3 under the drive of the auxiliary linkage member 31; A moving speed detection mechanism 61 capable of detecting the moving speed of the device is provided on a moving component 3 opposite to the support base 1 with respect to the moving driving member 51. A spraying device 71 capable of spraying the oil pipeline is commonly provided inside the two support bases 1. The spraying mode of the spraying device 71 is spiral spraying, that is, the nozzle rotates and sprays the coating during the movement of the device. Specifically, the moving speed detection mechanism 61 detects the moving speed of the device through the principle of an optical encoder, and transmits the data to be processed by the controller, and then the controller drives the rotation speed and the material output of the spraying device 71.

[0032] Working principle of the present invention: When using the present invention, the present invention needs to be placed inside the oil pipeline to be pre-sprayed. The extension driving mechanism 41 is started to drive the moving components 3 to extend through the linkage mechanism 21 and the driving linkage member 81. During the process, the linkage mechanism 21 drives the moving driving member 51 to extend simultaneously through the auxiliary linkage member 31. When all the moving components 3 and the moving driving member 51 are in contact with the inner wall of the oil pipeline, the extension driving mechanism 41 is turned off; When starting to spray, the moving driving member 51 is started to drive the present invention to move inside the oil pipeline, and at the same time, the spraying device 71 is started to spray the inner wall of the oil pipeline. During the process, the moving speed detection mechanism 61 can detect the moving speed of the present invention and transmit a signal to the controller. Then, the controller adjusts the rotation speed and the coating output of the spraying device 71. Controlling the spraying work by the moving speed of the present invention can greatly improve the spraying refinement degree of the present invention, and can greatly reduce the occurrence of uneven spraying and less spraying or missing spraying.

[0033] In combination with the attached Figure 1, Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 As shown in the following The moving component 3 includes a first articulated rod 301 hinged to the support base 1. The end of the first articulated rod 301 is hinged to a second articulated rod 302. The end of the second articulated rod 302 is hinged to a connecting member 303. A driven roller 304 is provided on the connecting member 303. The linkage mechanism 21 adjusts the connection between the first articulated rod 301 and the second articulated rod 302 to move radially along the oil pipeline, thereby adjusting the distance between the driven roller 304 and the support base 1 radially, so that the driven roller 304 can contact the inner wall of the oil pipeline; The linkage mechanism 21 includes a limiting member 211 and a central block 212. The limiting member 211 is provided at the connection part of the first articulated rod 301 and the second articulated rod 302 corresponding to each other on the two support bases 1. Plug rods 213 that are slidably inserted into the limiting member 211 are provided at both ends of the central block 212. A transmission rod 214 is correspondingly hinged on the central block 212. Transmission blocks 215 are hinged at the ends of the two transmission rods 214. The transmission block 215 on one of the linkage mechanisms 21 is driven by the extension driving mechanism 41. At this time, the transmission block 215 drives the central block 212 to move closer to or away from the support base 1 through the transmission rod 214, so that the central block 212 drives the extension or contraction of the moving component 3 through the plug rod 213 and the limiting member 211. During the process, the limiting member 211 can slide on the plug rod 213; The extension driving mechanism 41 includes a first driving device 411 fixed to the support base 1. The first driving device 411 drives a gear ring 412 sleeved on the support base 1 to rotate. A lead screw 413 is commonly provided on the two support bases 1. A transmission gear 414 meshing with the gear ring is provided at the end of the lead screw 413, and is threadedly connected to the transmission block 215 on one of the linkage mechanisms 21; The driving linkage 81 includes a second linkage body 811 slidably sleeved on the connecting rod 2. A collar 812 is correspondingly provided at one end of the second linkage body 811. The collar 812 is located at both ends of the transmission block 215 driven by the extension driving mechanism 41 and is sleeved outside the lead screw 413. The other end of the second linkage body 811 is hinged to the transmission blocks 215 on the two groups of linkage mechanisms 21 without driving force.

[0034] In order to place the present invention at the center position of the oil pipeline, it is also necessary to expand the three groups of moving components 3 until all the driven rollers 304 contact the inner wall of the oil pipeline. Since the present invention needs to place the equipment in the oil pipeline and the oil pipeline in the prior art is generally circular, at this time, only three groups of moving components 3 are set and all three groups of moving components 3 contact the inner wall of the oil pipeline, then the equipment can be placed at the center position in the oil pipeline. The specific process is as follows: The starting drive device 411 drives the lead screw 413 to rotate through the gear ring 412 and the transmission gear 414. The lead screw 413 in the present invention is a bidirectional lead screw. The lead screw 413 drives two transmission blocks 215 to move towards each other, gradually reducing the angle between the two transmission rods 214. Then, the center block 212 drives the insertion rod 213 to move away from the lead screw 413. Since the insertion rod 213 is inserted into the limit member 211, both limit members 211 on both sides move along with the insertion rod 213. During this process, the limit member 211 drives the moving assembly 3 to perform an extension operation, and at this time, the moving assemblies 3 on the same side can be extended simultaneously; During the process of starting the drive device 411, in order to deploy all the moving assemblies 3 simultaneously, a drive linkage 81 is provided. That is, when the transmission block 215 located on the lead screw 413 moves, it can drive the linkage body two 811 to move through the collar 812. The linkage body two 811 is hinged to the transmission blocks 215 on other linkage mechanisms 21. At this time, all the transmission blocks 215 can move simultaneously, that is, all the moving assemblies 3 can be deployed simultaneously.

[0035] Combined with attached Figure 1 、attached Figure 2 、attached Figure 3 、attached Figure 4 、attached Figure 5 、attached Figure 6 、attached Figure 7 、attached Figure 8 as shown in: The auxiliary linkage 31 includes a linkage body one 311 slidably sleeved on the connecting rod 2. Both ends of the linkage body one 311 are hinged to the transmission blocks 215 on other linkage mechanisms 21 through hinge seats one 312; The moving drive 51 includes two hinge rods three 511 hinged to each other at the center position. Corresponding linkage bodies one 311 are each provided with a hinge seat two 313 hinged to the hinge rod three 511. The end of the hinge rod three 511 is provided with a driving roller 512. The end of the driving roller 512 is provided with a transmission wheel one 513. A driving motor 514 is provided at the center position of the hinge rod three 511. A driving wheel 515 is provided on the driving motor 514. A receiving seat 516 is rotatably provided on the driving wheel 515. A transmission wheel two 517 is provided at the end of the back of the receiving seat 516. A transmission belt 518 is connected between the two transmission wheels one 513, the driving wheel 515, and the transmission wheel two 517.

[0036] When the driving device 411 starts, it can drive other moving components 3 to expand through other linkage mechanisms 21. During the process, since both ends of the linkage body 311 are hinged to the transmission block 215 on the other linkage mechanism 21 through the hinge seat 312, that is, at this time, the two hinge rods 511 hinged to each other at the central position change the crossed state under the drive of the auxiliary linkage 31, and drive the active roller 512 and the driven roller 304 to move simultaneously and with the same amplitude. When both the active roller 512 and the driven roller 304 are in contact with the inner wall of the oil pipeline, the spraying work can be started. The specific process is as follows: Start the drive motor 514 to drive the two drive wheels 513 to rotate in the same direction through the drive wheel 515 and the transmission belt 518. The drive wheel 513 drives the active roller 512 to rotate. At this time, the present invention can move. During the movement process, the driven roller 304 rolls along. Since the driven roller 304 rolls without power, the rolling speed of the driven roller 304 is the moving speed of the present invention.

[0037] Combined with attached Figure 1 and attached Figure 2 and attached Figure 3 and attached Figure 6 and attached Figure 9 and attached Figure 10 as shown in: The moving speed detection mechanism 61 includes a fixed seat 611 fixed to the connecting member 303. Corresponding to the fixed seat 611, there are light sources 612 with opposite irradiation directions and facing the driven roller 304. A plurality of code tracks 613 are evenly arranged on the driven roller 304 of the moving component 3 where the moving speed detection mechanism 61 is located. A housing 614 sleeved outside the driven roller 304 is fixed to the connecting member 303. A light barrier plate 615 is arranged inside the housing 614. The driven roller 304 is located between the light barrier plate 615 and the light source 612. A light sensor 616 is arranged at the end of the housing 614.

[0038] During the movement of the present invention, in order to detect the moving speed of the present invention, the moving speed detection mechanism 61 is provided. The specific detection process is as follows: When the driven roller 304 rolls, the light source 612 and the light sensor 616 are turned on. When the driven roller 304 rolls, the light rays emitted by the light source 612 can be received by the light sensor 616 through the code track 613 and the light barrier plate 615. The specific principle is the same as that of the photoelectric encoder in the prior art, generally including a light source, a code disk, a photosensitive element, a signal processing circuit, etc.; Pulse generation: When the code disk rotates, the light source alternately irradiates the photosensitive element through the slit, generating a sine wave signal (or square wave) proportional to the rotation speed. The typical output is two quadrature signals (phase difference of ninety degrees, A phase, B phase) and a zero position signal (Z phase, one pulse is output per revolution).

[0039] Measurement logic: Calculate the angular displacement by counting the number of pulses (Δθ = number of pulses × angle corresponding to a single pulse), and calculate the rotational speed by the number of pulses per unit time (n = number of pulses / time × 60 / number of teeth on the code disk).

[0040] The signal processing circuit processes through the controller and drives the spraying device 71 to perform spraying work through the drive circuit.

[0041] Combined with the attached Figure 1 、attached Figure 2 、attached Figure 3 、attached Figure 4 、attached Figure 5 、attached Figure 6 、attached Figure 11 、attached Figure 12 shown as follows: The spraying device 71 includes a material storage cylinder 711 located inside two support seats 1 at the same time. One end of the material storage cylinder 711 is connected with a feed joint 712, the other end is provided with a material transfer pump 713, the output end of the material transfer pump 713 is provided with a rotary joint 714, the output end of the rotary joint 714 is provided with a discharge joint 715, the end of the discharge joint 715 is provided with a spraying pipe 716. The rotary joint 714 includes a fixed head and a rotating head. The fixed head is connected with the material transfer pump 713, a driven gear 717 is fixedly connected to the rotating head, and the driven gear 717 is driven to rotate by a second driving device 718 provided on the support seat 1, so as to drive the rotating head to rotate.

[0042] In order to make the spraying device 71 spray more evenly on the inner wall of the oil pipeline: The spraying device 71 is adjusted by the controller. After the controller receives and processes the signal of the moving speed detection mechanism 61, it adjusts the output power of the material transfer pump 713 and the second driving device 718. The working principle of the spraying device 71 is as follows: When the equipment moves, start the material transfer pump 713 and the second driving device 718. The material transfer pump 713 sprays the paint in the material storage cylinder 711 from the output end of the spraying pipe 716 through the rotary joint 714 and the discharge joint 715. At the same time, the second driving device 718 drives the rotating head on the rotary joint 714 to rotate through the driven gear 717. The rotating head drives the discharge joint 715 and the spraying pipe 716 to rotate, and then cooperates with the movement of the equipment, so that the end of the spraying pipe 716 rotates in a spiral state, and the inner wall of the oil pipeline is fully sprayed during the process; When the driving roller 512 slips due to the inner wall of the oil pipeline and the moving driving member 51, since the moving speed of the driven roller 304 will change when the driving roller 512 slips, at this time, the moving speed detection mechanism 61 can obtain the moving speed of the equipment by detecting the moving speed of the driven roller 304, and then reduce the output power of the material conveying pump 713 and the second driving device 718 to reduce the output rate of the coating material and the rotation speed of the spraying pipe 716. When the equipment moves downhill in the oil pipeline, the equipment will accelerate. At this time, the output power of the material conveying pump 713 and the second driving device 718 is increased according to the moving speed of the driven roller 304 to increase the output rate of the coating material and the rotation speed of the spraying pipe 716, ensuring the uniformity of the oil pipeline spraying and avoiding the situation of too thick or too thin spraying.

[0043] When the present invention is specifically implemented, during use, the equipment is placed in the oil pipeline, the stretching driving mechanism 41 is started, and the moving assembly 3 and the moving driving member 51 are stretched through the linkage mechanism 21 and the driving linkage member 81, and the stretching stops after the driven roller 304 and the driving roller 512 are in contact with the inner wall of the pipeline; during spraying, the moving driving member 51 is started to drive the equipment to move, and the moving speed detection mechanism 61 detects the moving speed through the principle of the photoelectric encoder and transmits the data to the controller, and the controller adjusts the rotation speed and the material output amount of the spraying device 71 accordingly to realize spiral spraying and ensure the spraying uniformity.

[0044] The above description of the present invention and its implementation manners is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. An oil pipeline spraying device, comprising a support base (1), a controller is arranged on the support base (1), three groups of connecting rods (2) are connected between the two support bases (1), and three groups of telescopic moving components (3) are correspondingly arranged on each of the two support bases (1), characterized in that: A linkage mechanism (21) for simultaneously extending or contracting the moving components (3) is commonly provided on the moving components (3) in two as a group. An extension driving mechanism (41) for extending or contracting the three groups of moving components (3) by driving one of the linkage mechanisms (21) is commonly provided on the two support bases (1). The linkage mechanism (21) driven by the extension driving mechanism (41) drives other linkage mechanisms (21) to work by driving a linkage member (81). The linkage mechanisms (21) without driving force are connected by correspondingly arranged auxiliary linkage members (31). A moving driving member (51) capable of driving the device to move is provided on the auxiliary linkage member (31). The moving driving member (51) extends or contracts simultaneously with the moving component (3) under the drive of the auxiliary linkage member (31); A moving speed detection mechanism (61) capable of detecting the moving speed of the device is provided on one group of moving components (3). A spraying device (71) for spiral spraying is commonly provided inside the two support bases (1). The spraying device (71) drives the rotation speed and material output of the spraying device (71) according to the moving speed of the device detected by the moving speed detection mechanism (61).

2. The oil pipeline spraying device according to claim 1, characterized in that: The moving component (3) includes a first articulated rod (301) articulated to the support base (1). A second articulated rod (302) is articulated to the end of the first articulated rod (301). A connecting member (303) is articulated to the end of the second articulated rod (302). A driven roller (304) is provided on the connecting member (303). The linkage mechanism (21) adjusts the connection part of the first articulated rod (301) and the second articulated rod (302) to move radially along the oil pipeline, so as to adjust the distance between the driven roller (304) and the support base (1), so that the driven roller (304) can contact the inner wall of the oil pipeline.

3. The oil pipeline spraying device according to claim 2, characterized in that: The linkage mechanism (21) includes a limiting member (211) and a central block (212). The limiting member (211) is arranged at the connection part of the first articulated rod (301) and the second articulated rod (302). Plug rods (213) slidably inserted into the limiting member (211) are provided at both ends of the central block (212). A transmission rod (214) is correspondingly articulated to the central block (212). Transmission blocks (215) are articulated to the ends of the two transmission rods (214). The transmission block (215) on the linkage mechanism (21) with driving force is driven by the extension driving mechanism (41). At this time, the transmission block (215) drives the central block (212) to move radially closer to or away from the support base (1) through the transmission rod (214).

4. The oil pipeline spraying device according to claim 3, characterized in that: The driving linkage (81) includes a second linkage body (811) slidably sleeved on the connecting rod (2). One end of the second linkage body (811) is connected to a transmission block (215) driven by an extension driving mechanism (41), and the other end is hinged to a transmission block (215) on a linkage mechanism (21) without driving force. The auxiliary linkage (31) includes a first linkage body (311) slidably sleeved on the connecting rod (2). Both ends of the first linkage body (311) are hinged to transmission blocks (215) on two groups of linkage mechanisms (21) without driving force through hinge seats one (312).

5. The oil pipeline spraying device according to claim 4, wherein: The moving driving member (51) includes two third hinge rods (511) hinged to each other at the central position. Corresponding second linkage bodies (311) are respectively provided with second hinge seats (313) hinged to the third hinge rods (511). Driving rollers (512) are provided at the ends of the third hinge rods (511), and first transmission wheels (513) are provided at the ends of the driving rollers (512). A power mechanism for simultaneously driving the two driving rollers (512) to rotate is provided on one of the third hinge rods (511).

6. The oil pipeline spraying device according to claim 2, wherein: The moving speed detection mechanism (61) includes a fixed seat (611) fixed to the connecting member (303). Oppositely directed light sources (612) facing the driven roller (304) are correspondingly provided on the fixed seat (611). A plurality of code tracks (613) are evenly provided on the driven roller (304) of the moving assembly (3) where the moving speed detection mechanism (61) is located. A housing (614) sleeved outside the driven roller (304) is fixed to the connecting member (303). A light barrier plate (615) is provided inside the housing (614). The driven roller (304) is located between the light barrier plate (615) and the light source (612). A light sensor (616) is provided at the end of the housing (614).

7. The oil pipeline spraying device according to claim 1, wherein: The spraying device (71) includes a material storage cylinder (711) located inside both support seats (1). One end of the material storage cylinder (711) is connected with a feed joint (712), and a material transfer pump (713) is provided at the other end. A rotary joint (714) is provided at the output end of the material transfer pump (713). An output joint (715) is provided at the output end of the rotary joint (714). A spraying pipe (716) is provided at the end of the output joint (715). The rotary joint (714) includes a fixed head and a rotating head. The fixed head is connected with the material transfer pump (713), and a driven gear (717) is fixed to the rotating head. The driven gear (717) is driven to rotate by a second driving device (718) provided on the support seat (1).

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