A petroleum pipeline spraying apparatus

Abstract

The present application relates to the field of pipeline processing, and discloses a petroleum pipeline spraying equipment, which comprises a supporting seat, three groups of telescopic moving assemblies are correspondingly arranged on the two supporting seats, the moving assemblies in each group are provided with a linkage mechanism for simultaneously stretching or contracting the moving assemblies, the linkage mechanism driven by the stretching driving mechanism drives other linkage mechanisms to work through the driving linkage, the linkage mechanisms without driving force are connected by the corresponding auxiliary linkages, the auxiliary linkages are provided with moving driving members for driving the equipment to move, and the moving driving members are simultaneously stretched or contracted with the moving assemblies under the driving of the auxiliary linkages. The present application has the beneficial effects compared with the prior art, that is, the moving speed detection mechanism can detect the moving speed of the equipment in real time through the light source, code channel and light sensor, transmit the data to the controller, and drive the rotating speed of the spraying device and the material output, so that the spiral spraying is realized, and the uneven spraying, less spraying and leakage spraying are avoided.

Description

Technical Field

[0001] The invention relates to the field of pipeline processing, in particular to a petroleum pipeline spraying device. Background Art

[0002] During long-term use, the inner wall of oil pipelines is susceptible to damage such as corrosion and wear. Spraying protective coatings is an important means to extend the life of pipelines. Existing oil pipeline spraying equipment has the following problems in actual application:

[0003] Insufficient spraying uniformity: Traditional spraying equipment mostly uses fixed nozzles or simple reciprocating motion spraying. It is difficult to dynamically adjust the nozzle speed and paint output according to the equipment movement speed, which can easily lead to problems such as uneven coating thickness, insufficient spraying, and missed spraying. Especially in the environment of the curved inner wall of the pipeline, the spraying accuracy is difficult to guarantee.

[0004] Lack of speed detection and dynamic adjustment capabilities: When the equipment moves in the pipeline, the actual speed may fluctuate due to inner wall friction, slope changes or slippage of the power components. However, existing equipment lacks a mechanism to detect the speed in real time and adaptively adjust the spraying parameters. It cannot cope with complex pipeline environments and can easily cause the coating to be too thick or too thin.

[0005] Low efficiency of multi-component collaboration: The drive systems of support, movement, spraying and other components are relatively independent, the extension and contraction movements are not synchronized, the operation is complex and the reliability is insufficient, making it difficult to meet the efficient collaboration requirements of automated spraying. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a petroleum pipeline spraying equipment.

[0007] A petroleum pipeline spraying device includes a support base, a controller is provided on the support base, three groups of connecting rods are connected between two support bases, and three groups of retractable moving components are correspondingly provided on the two support bases. The two moving components in a group are commonly provided with a linkage mechanism that causes the moving components to extend or retract simultaneously. The two support bases are commonly provided with an extension drive mechanism that causes the three groups of moving components to extend or retract by driving one of the linkage mechanisms. The linkage mechanism driven by the extension drive mechanism drives the other linkage mechanisms to work via a driving linkage member. The linkage mechanisms without driving force are connected by corresponding auxiliary linkage members. The auxiliary linkage members are provided with a moving drive member that can drive the equipment to move. The moving drive member is driven by the auxiliary linkage member to extend or retract simultaneously with the moving component;

[0008] A speed detection mechanism that can detect the speed of the equipment is provided on one set of moving components. A spiral spraying device is provided inside the two support seats. The spraying device drives the speed and material output of the spraying device according to the equipment speed detected by the speed detection mechanism.

[0009] As an improvement, the moving assembly includes an articulated rod 1 hinged on the support seat, an articulated rod 2 is hinged at the end of the articulated rod 1, a connecting piece is hinged at the end of the articulated rod 2, a driven roller is provided on the connecting piece, and the linkage mechanism adjusts the distance between the driven roller and the support seat by adjusting the connection between the articulated rod 1 and the articulated rod 2 along the radial direction of the oil pipeline, so that the driven roller can contact the inner wall of the oil pipeline.

[0010] As an improvement, the linkage mechanism includes a limiter and a center block. The limiter is provided at the connection between the hinged rod one and the hinged rod two. Both ends of the center block are provided with an insertion rod that is slidably plugged into the limiter, and a transmission rod is correspondingly hinged on the center block. The ends of the two transmission rods are hinged with transmission blocks. The transmission block on the linkage mechanism with driving force is driven by the extension drive mechanism. At this time, the transmission block drives the center block to move radially towards or away from the support seat through the transmission rod.

[0011] As an improvement, the driving linkage part includes a linkage part body 2 which is slidably sleeved with the connecting rod, one end of the linkage part body 2 is connected to the transmission block driven by the extension drive mechanism, and the other end is hinged to the transmission block on the linkage mechanism without driving force. The auxiliary linkage part includes a linkage part body 1 which is slidably sleeved with the connecting rod, and both ends of the linkage part body 1 are hinged between the transmission blocks on the two groups of linkage mechanisms without driving force through an articulated seat 1.

[0012] As an improvement, the mobile driving part includes two articulated rods three hinged to each other at the center position, and the corresponding linkage part body one is provided with an articulated seat two hinged to the articulated rod three, and the end of the articulated rod three is provided with an active roller, and the end of the active roller is provided with a transmission wheel one, and one of the articulated rods three is provided with a power mechanism that simultaneously drives the two active rollers to rotate.

[0013] As an improvement, the speed detection mechanism includes a fixed seat fixedly connected to the connecting member, and a light source with an opposite irradiation direction and facing the driven roller is correspondingly provided on the fixed seat. A number of code channels are evenly provided on the driven roller on the moving assembly where the speed detection mechanism is located. A cover shell is fixedly connected to the connecting member and is sleeved on the outside of the driven roller. A light bar plate is provided in the cover shell. The driven roller is located between the light bar plate and the light source, and a light sensor is provided at the end of the cover shell.

[0014] As an improvement, the spraying device includes a storage barrel located in two support seats at the same time, one end of the storage barrel is connected to a feed joint, and the other end is provided with a feed pump, the output end of the feed pump is provided with a rotary joint, the output end of the rotary joint is provided with a discharge joint, and the end of the discharge joint is provided with a spray pipe, the rotary joint includes a fixed head and a rotating head, the fixed head is connected to the feed pump, and a driven gear is fixed to the rotating head, and the driven gear is driven to rotate by a driving device 2 located on the support seat.

[0015] The beneficial effects of the present invention compared with the prior art are:

[0016] 1. Accurately adjust spraying parameters to improve spraying uniformity:

[0017] The speed detection mechanism detects the moving speed of the equipment in real time through the light source, code channel and light sensor, and transmits the data to the controller. The controller drives the speed and material output of the spraying device to realize spiral spraying, avoiding uneven spraying, insufficient spraying and missed spraying.

[0018] 2. Synchronous expansion and contraction components to adapt to the pipeline and maintain the center position:

[0019] The extension drive mechanism drives the linkage mechanism, which drives the driven rollers of all moving components and the active rollers of the moving drive components to extend or retract synchronously through the screw rod, gear ring and drive linkage parts, ensuring contact with the inner wall of the pipeline, so that the equipment is in the center of the pipeline and stably supported and moved.

[0020] 3. Self-adaptation of slippage and speed change, dynamic adjustment of spraying accuracy:

[0021] The driven roller rotates without power, and its speed truly reflects the equipment's movement speed, which is detected by the speed detection mechanism. When the active roller slips or the equipment accelerates when the pipeline is downhill, the controller adjusts the output power of the spray device to avoid over-thickness or under-thinness of the spray and ensure uniformity.

[0022] 4. Linkage drive, multi-component synchronous action:

[0023] After the extension drive mechanism drives a single linkage mechanism, it drives all linkage mechanisms to work synchronously by driving the linkage parts and auxiliary linkage parts, so that the moving components and the moving drive parts extend and contract at the same time, simplifying the operation and ensuring the coordination of all parts.

[0024] 5. Stable power transmission and movement:

[0025] The driving motor of the mobile driving part drives the active roller to rotate through the driving wheel and transmission belt. The auxiliary linkage ensures that the active roller and the driven roller move with the same amplitude, providing stable driving force, adapting to the inner wall environment of the pipeline, and ensuring smooth movement of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The diagram is a schematic diagram of the overall structure of a petroleum pipeline spraying device according to the present invention.

[0027] Figure 2 This is a schematic diagram of the equipment structure of a petroleum pipeline spraying equipment of the present invention Figure 1 .

[0028] Figure 3 This is a schematic diagram of the equipment structure of a petroleum pipeline spraying equipment of the present invention Figure 2 .

[0029] Figure 4This is a schematic diagram of the disassembled structure of a petroleum pipeline spraying equipment of the present invention Figure 1 .

[0030] Figure 5 This is a schematic diagram of the disassembled structure of a petroleum pipeline spraying equipment of the present invention Figure 2 .

[0031] Figure 6 The diagram is a partial structural diagram of a petroleum pipeline spraying device according to the present invention.

[0032] Figure 7 The diagram is a partial structural diagram of a petroleum pipeline spraying device according to the present invention.

[0033] Figure 8 The present invention is a schematic diagram of the structure of a mobile driving component of a petroleum pipeline spraying device.

[0034] Figure 9 This is a schematic diagram of the split structure of the speed detection mechanism of the oil pipeline spraying equipment of the present invention Figure 1 .

[0035] Figure 10 This is a schematic diagram of the speed detection mechanism structure of a petroleum pipeline spraying equipment of the present invention. Figure 2 .

[0036] Figure 11 This is a schematic diagram of the spraying device structure of a petroleum pipeline spraying equipment of the present invention Figure 1 .

[0037] Figure 12 This is a schematic diagram of the spraying device structure of a petroleum pipeline spraying equipment of the present invention Figure 2 .

[0038] As shown in the figure: 1. Support seat; 2. Connecting rod; 3. Moving assembly; 301. Articulated rod 1; 302. Articulated rod 2; 303. Connecting piece; 304. Driven roller; 21. Linkage mechanism; 211. Limiting piece; 212. Center block; 213. Inserting rod; 214. Transmission rod; 215. Transmission block; 31. Auxiliary linkage piece; 311. Linkage piece body 1; 312. Articulated seat 1; 313. Articulated seat 2; 41. Extension drive mechanism; 411. Drive device 1; 412. Gear ring; 413. Screw rod; 414. Transmission gear; 51. Moving drive piece; 511. Articulated rod 3; 512. Active roller ;513, transmission wheel one; 514, driving motor; 515, driving wheel; 516, receiving seat; 517, transmission wheel two; 518, transmission belt; 61, speed detection mechanism; 611, fixed seat; 612, light source; 613, code channel; 614, cover; 615, light barrier; 616, light sensor; 71, spraying device; 711, storage barrel; 712, feed connector; 713, feed pump; 714, rotary joint; 715, discharge connector; 716, spray pipe; 717, driven gear; 718, driving device two; 81, driving linkage; 811, linkage body two; 812, sleeve. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below with reference to the accompanying drawings. Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 As shown:

[0040] A petroleum pipeline spraying device includes a support base 1, a controller is provided on the support base 1, three groups of connecting rods 2 are connected between two support bases 1, and three groups of retractable moving components 3 are correspondingly provided on the two support bases 1, and the moving components 3 arranged in a group of two are commonly provided with a linkage mechanism 21 that causes the two corresponding moving components 3 to extend or retract simultaneously, and the two support bases 1 are commonly provided with an extension drive mechanism 41 that extends or retracts the moving components 3 by driving one of the linkage mechanisms 21, the linkage mechanisms 21 driven by the extension drive mechanism 41 drive the other linkage mechanisms 21 to work via the driving linkage member 81, and the linkage mechanisms 21 without driving force are connected by corresponding auxiliary linkage members 31, and the auxiliary linkage members 31 are provided with a moving drive member 51 that can drive the equipment to move, and the moving drive member 51 is driven by the auxiliary linkage member 31 to extend or retract simultaneously with the moving component 3;

[0041] A moving component 3 arranged opposite to the support seat 1 with the moving drive member 51 is provided with a speed detection mechanism 61 that can detect the moving speed of the equipment. The two support seats 1 are jointly provided with a spraying device 71 that can spray the oil pipeline. The spraying method of the spraying device 71 is spiral spraying, that is, the nozzle rotates and sprays paint during the movement of the equipment. Specifically, the speed detection mechanism 61 detects the moving speed of the equipment through the principle of photoelectric encoder, and processes the data through the controller, and then the controller drives the rotation speed and material output of the spraying device 71.

[0042] Working principle of the present invention: When using the present invention, it is necessary to place the present invention in a pre-sprayed oil pipeline, start the extension drive mechanism 41 to drive the mobile component 3 to extend through the linkage mechanism 21 and the drive linkage member 81. During the process, the linkage mechanism 21 drives the mobile drive member 51 to extend simultaneously through the auxiliary linkage member 31. When all the mobile components 3 and the mobile drive member 51 are in contact with the inner wall of the oil pipeline, the extension drive mechanism 41 is closed;

[0043] When spraying is started, the mobile driving member 51 is started to drive the present invention to move in the oil pipeline, and the spraying device 71 is started to spray the inner wall of the oil pipeline. During the process, the speed detection mechanism 61 can detect the moving speed of the present invention and transmit a signal to the controller, and then the controller adjusts the rotation speed and paint output of the spraying device 71. The speed control of the spraying work by the present invention can greatly improve the degree of refinement of the spraying of the present invention, and can greatly reduce the occurrence of uneven spraying and insufficient spraying.

[0044] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 As shown:

[0045] The moving assembly 3 includes an articulated rod 1 301 hinged to the support base 1, an articulated rod 2 302 hinged to the end of the articulated rod 1 301, an articulated rod 2 302 hinged to the end of the articulated rod 2 302, a connecting member 303 hinged to the end of the articulated rod 2 303, and a driven roller 304 provided on the connecting member 303. The linkage mechanism 21 adjusts the radial movement of the oil pipeline by adjusting the connection between the articulated rod 1 301 and the articulated rod 2 302, thereby adjusting the radial 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;

[0046] The linkage mechanism 21 includes a limiter 211 and a center block 212. The limiter 211 is provided at the connection portion of the hinge rod 1 301 and the hinge rod 2 302 correspondingly provided on the two support seats 1. Both ends of the center block 212 are provided with an insertion rod 213 that is slidably plugged into the limiter 211, and a transmission rod 214 is correspondingly hinged on the center block 212. The ends of the two transmission rods 214 are hinged with a transmission block 215. The transmission block 215 on one of the linkage mechanisms 21 is driven by the extension drive mechanism 41. At this time, the transmission block 215 drives the center block 212 to move closer to or away from the support seat 1 through the transmission rod 214, so that the center block 212 drives the mobile assembly 3 to extend or contract through the insertion rod 213 and the limiter 211. During this process, the limiter 211 can slide on the insertion rod 213;

[0047] The extension drive mechanism 41 includes a drive device 411 fixed to the support base 1. The drive device 411 drives the gear ring 412 connected to the support base 1 to rotate. The two support bases 1 are equipped with a screw rod 413. The end of the screw rod 413 is equipped with a transmission gear 414 that meshes with the gear ring and is threadedly connected to the transmission block 215 on one of the linkage mechanisms 21.

[0048] The driving linkage 81 includes a linkage body 811 that is slidably connected to the connecting rod 2. A ring 812 is correspondingly provided at one end of the linkage body 811. The ring 812 is located at both ends of the transmission block 215 driven by the extension drive mechanism 41 and is connected to the outside of the screw rod 413. The other end of the linkage body 811 is hinged between the transmission blocks 215 on the two groups of linkage mechanisms 21 without driving force.

[0049] In order to place the present invention at the center of the oil pipeline, it is necessary to expand the three groups of moving components 3 until all the driven rollers 304 are in contact with the inner wall of the oil pipeline. Since the present invention needs to place the device inside the oil pipeline, and the oil pipeline in the prior art is generally circular, it is only necessary to set three groups of moving components 3 and make all three groups of moving components 3 contact the inner wall of the oil pipeline to place the device at the center of the oil pipeline. The specific process is as follows:

[0050] The driving device 1 411 is started to rotate the screw rod 413 through the gear ring 412 and the transmission gear 414. The screw rod 413 in the present invention is a bidirectional screw rod. The screw rod 413 drives the two transmission blocks 215 to move toward each other, so that the angle between the two transmission rods 214 gradually decreases, and then drives the insertion rod 213 to move away from the screw rod 413 through the center block 212. Since the insertion rod 213 is plugged into the limiter 211, the limiters 211 on both sides move with the insertion rod 213. During the process, the limiter 211 drives the moving assembly 3 to extend, and the moving assembly 3 on the same side can be extended at the same time.

[0051] During the process of starting the driving device 411, in order to enable all the moving components 3 to be unfolded at the same time, a driving linkage 81 is set, that is, when the transmission block 215 located on the screw rod 413 moves, the linkage body 2 811 can be driven to move through the ring 812. The linkage body 2 811 is hinged with the transmission blocks 215 on other linkage mechanisms 21. At this time, all the transmission blocks 215 can move at the same time, that is, all the moving components 3 can be unfolded at the same time.

[0052] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 , Attachment Figure 8 As shown:

[0053] The auxiliary linkage member 31 includes a linkage member body 311 that is slidably sleeved with the connecting rod 2. Both ends of the linkage member body 311 are hinged to the transmission block 215 on the other linkage mechanism 21 through a hinge seat 312.

[0054] The mobile driving member 51 includes two articulated rods 3 511 hinged to each other at the center position, and the corresponding linkage member body 1 311 is provided with an articulated seat 2 313 articulated to the articulated rod 3 511, and an active roller 512 is provided at the end of the articulated rod 3 511, and a transmission wheel 1 513 is provided at the end of the active roller 512. A driving motor 514 is provided at the center position of the articulated rod 3 511, and a driving wheel 515 is provided on the driving motor 514. A receiving seat 516 is rotatably provided on the driving wheel 515, and a transmission wheel 2 517 is provided at the end of the back of the receiving seat 516. A transmission belt 518 is connected between the two transmission wheels 1 513 and the driving wheel 515 and the transmission wheel 2 517.

[0055] When the driving device 1 411 is started, it can drive the other moving components 3 to start working through the other linkage mechanisms 21. During this process, since both ends of the linkage body 1 311 are hinged to the transmission block 215 on the other linkage mechanism 21 through the hinge seat 1 312, the two hinged rods 3 511 hinged to each other at the center position change their cross state under the drive of the auxiliary linkage member 31, and drive the driving roller 512 and the driven roller 304 to move simultaneously and with the same amplitude;

[0056] When both the active roller 512 and the driven roller 304 are in contact with the inner wall of the oil pipeline, the spraying operation can be started. The specific process is: starting the drive motor 514 drives the two drive wheels 513 to rotate in the same direction through the drive wheel 515 and the transmission belt 518, and the drive wheel 513 drives the active roller 512 to rotate. At this time, the present invention can move. During the movement, the driven roller 304 follows and rolls. Since the driven roller 304 itself rolls without power, the rolling speed of the driven roller 304 is the moving speed of the present invention.

[0057] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 6 , Attachment Figure 9 , Attachment Figure 10 As shown:

[0058] The speed detection mechanism 61 includes a fixed seat 611 fixedly connected to the connecting member 303, and a light source 612 is correspondingly provided on the fixed seat 611 with an opposite irradiation direction and toward the driven roller 304. A number of code channels 613 are evenly provided on the driven roller 304 on the moving component 3 where the speed detection mechanism 61 is located. A cover 614 is fixedly connected to the connecting member 303 and is sleeved on the outside of the driven roller 304. A light bar 615 is provided in the cover 614. The driven roller 304 is located between the light bar 615 and the light source 612, and a light sensor 616 is provided at the end of the cover 614.

[0059] During the movement of the present invention, in order to detect the movement speed of the present invention, a movement speed detection mechanism 61 is provided. The specific detection process is as follows:

[0060] When the driven roller 304 rotates, the light source 612 and the light sensor 616 are turned on. When the driven roller 304 rotates, the light emitted by the light source 612 can pass through the code channel 613 and the light barrier 615 and be received by the light sensor 616. The specific principle is the same as that of the photoelectric encoder in the prior art, which generally includes a light source, a code disk, a photosensitive element, a signal processing circuit, etc.

[0061] Pulse Generation: As the encoder rotates, light shines through the slits, alternating between the photosensitive elements and the encoder, generating a sinusoidal (or square) signal proportional to the rotational speed. The typical output is two quadrature signals (A and B) with a 90-degree phase difference, and a zero-position signal (Z, one pulse per revolution).

[0062] Measurement logic: Calculate angular displacement by counting the number of pulses (Δθ = number of pulses × angle corresponding to a single pulse), and calculate speed by the number of pulses per unit time (n = number of pulses / time × 60 / number of encoder teeth).

[0063] The signal processing circuit processes the signal through the controller and drives the spraying device 71 through the driving circuit to perform the spraying operation.

[0064] Combined with attachment Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 11 , Attachment Figure 12 As shown:

[0065] The spraying device 71 includes a material storage barrel 711 located in two support seats 1 at the same time, one end of the material storage barrel 711 is connected to a feed joint 712, and the other end is provided with a feed pump 713, the output end of the feed pump 713 is provided with a rotary joint 714, the output end of the rotary joint 714 is provided with a discharge joint 715, and the end of the discharge joint 715 is provided with a spray pipe 716, the rotary joint 714 includes a fixed head and a rotating head, the fixed head is connected to the feed pump 713, and a driven gear 717 is fixed to the rotating head, and the driven gear 717 is driven to rotate by a driving device 2 718 provided on the support seat 1, thereby driving the rotating head to rotate.

[0066] In order to make the spraying device 71 spray the inner wall of the oil pipeline more uniformly: the spraying device 71 is regulated by the controller. After the controller receives and processes the signal of the speed detection mechanism 61, it adjusts the output power of the feed pump 713 and the second drive device 718. The working principle of the spraying device 71 is as follows:

[0067] When the equipment moves, the feed pump 713 and the second drive device 718 are started. The feed pump 713 sprays the paint in the storage barrel 711 through the rotary joint 714 and the discharge joint 715 from the output end of the spray pipe 716. At the same time, the second drive 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 spray pipe 716 to rotate. In conjunction with the movement of the equipment, the end of the spray pipe 716 rotates in a spiral state, and the inner wall of the oil pipeline is fully sprayed during the process.

[0068] When the active roller 512 slips due to the inner wall of the oil pipeline and the mobile driving member 51, the speed of the driven roller 304 will change when the active roller 512 slips. At this time, the speed detection mechanism 61 can obtain the speed of the equipment by simply detecting the speed of the driven roller 304, and then reduce the output power of the feed pump 713 and the second drive device 718 to reduce the output rate of the paint and the rotation speed of the spray pipe 716. When the equipment moves downhill in the oil pipeline, the equipment will accelerate. At this time, the output power of the feed pump 713 and the second drive device 718 is increased according to the speed of the driven roller 304 to increase the output rate of the paint and the rotation speed of the spray pipe 716, thereby ensuring the uniformity of the oil pipeline spraying and avoiding the occurrence of over-thick or over-thin spraying.

[0069] During the specific implementation of the present invention, the device is placed in an oil pipeline, the extension drive mechanism 41 is started, the moving assembly 3 and the moving drive member 51 are extended through the linkage mechanism 21 and the drive linkage member 81, and the device stops after the driven roller 304 and the active roller 512 contact the inner wall of the pipeline; during spraying, the moving drive member 51 is started to drive the device to move, and the speed detection mechanism 61 detects the speed through the principle of a photoelectric encoder and transmits the data to the controller. The controller adjusts the rotation speed and material output of the spraying device 71 accordingly to achieve spiral spraying and ensure spraying uniformity.

[0070] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A petroleum pipeline spraying device, comprising a support base (1), a controller provided on the support base (1), three groups of connecting rods (2) connected between two support bases (1), and three groups of retractable moving components (3) correspondingly provided on the two support bases (1), characterized in that: Two mobile assemblies (3) in a group are provided with a linkage mechanism (21) for simultaneously extending or contracting the mobile assemblies (3); two support seats (1) are provided with an extension drive mechanism (41) for extending or contracting the three mobile assemblies (3) by driving one of the linkage mechanisms (21); the linkage mechanism (21) driven by the extension drive mechanism (41) drives the other linkage mechanisms (21) to work by driving the linkage member (81); the linkage mechanisms (21) without driving force are connected by corresponding auxiliary linkage members (31); the auxiliary linkage member (31) is provided with a mobile driving member (51) capable of driving the device to move; the mobile driving member (51) is driven by the auxiliary linkage member (31) to extend or contract simultaneously with the mobile assembly (3); A speed detection mechanism (61) capable of detecting the speed of the equipment is provided on one set of moving components (3), and a spiral spraying device (71) is provided inside the two support seats (1). The spraying device (71) drives the rotation speed and material output of the spraying device (71) according to the speed of the equipment detected by the speed detection mechanism (61).

2. The oil pipeline spraying equipment according to claim 1, characterized in that: The moving assembly (3) includes an articulated rod 1 (301) hinged on the support seat (1), an articulated rod 2 (302) being articulated at the end of the articulated rod 1 (301), an articulated rod 2 (302) being articulated at the end of the articulated rod 2 (302), a connecting member (303) being articulated, and a driven roller (304) being provided on the connecting member (303). The linkage mechanism (21) adjusts the connection between the articulated rod 1 (301) and the articulated rod 2 (302) to move radially along the oil pipeline, thereby adjusting the distance between the driven roller (304) and the support seat (1), so that the driven roller (304) can contact the inner wall of the oil pipeline.

3. The oil pipeline spraying equipment according to claim 2, characterized in that: The linkage mechanism (21) includes a limiter (211) and a center block (212). The limiter (211) is provided at the connection portion between the first hinge rod (301) and the second hinge rod (302). Both ends of the center block (212) are provided with an insertion rod (213) that is slidably plugged into the limiter (211). A transmission rod (214) is correspondingly hinged on the center block (212). Both ends of the two transmission rods (214) are hinged with a transmission block (215). The transmission block (215) on the linkage mechanism (21) with driving force is driven by the extension drive mechanism (41). At this time, the transmission block (215) drives the center block (212) to move radially toward or away from the support seat (1) through the transmission rod (214).

4. The oil pipeline spraying equipment according to claim 3, characterized in that: The driving linkage member (81) includes a linkage member body 2 (811) slidably sleeved with the connecting rod (2), one end of the linkage member body 2 (811) is connected to a transmission block (215) driven by the extension drive mechanism (41), and the other end is hinged to the transmission block (215) on the linkage mechanism (21) without driving force. The auxiliary linkage member (31) includes a linkage member body 1 (311) slidably sleeved with the connecting rod (2), and both ends of the linkage member body 1 (311) are hinged to the transmission blocks (215) on the two groups of linkage mechanisms (21) without driving force through an articulated seat 1 (312).

5. The oil pipeline spraying equipment according to claim 4, characterized in that: The mobile driving member (51) includes two hinged rods (511) hinged to each other at a central position, and a corresponding linkage member body (311) is provided with a hinge seat (313) hinged to the hinged rod (511). The end of the hinged rod (511) is provided with a driving roller (512), and the end of the driving roller (512) is provided with a transmission wheel (513). One of the hinged rods (511) is provided with a power mechanism for simultaneously driving the two driving rollers (512) to rotate.

6. The oil pipeline spraying equipment according to claim 2, characterized in that: The speed detection mechanism (61) includes a fixed seat (611) fixedly connected to the connecting member (303), a light source (612) correspondingly provided on the fixed seat (611) with an irradiation direction opposite to that facing the driven roller (304), a plurality of code tracks (613) evenly provided on the driven roller (304) on the moving assembly (3) where the speed detection mechanism (61) is located, a cover (614) fixedly connected to the connecting member (303) and sleeved on the outside of the driven roller (304), a light bar (615) provided in the cover (614), the driven roller (304) located between the light bar (615) and the light source (612), and a light sensor (616) provided at the end of the cover (614).

7. The oil pipeline spraying equipment according to claim 1, characterized in that: The spraying device (71) includes a material storage barrel (711) located in two support seats (1) at the same time. One end of the material storage barrel (711) is connected to a feed joint (712), and the other end is provided with a feed pump (713). The output end of the feed pump (713) is provided with a rotary joint (714), and 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 spray pipe (716). The rotary joint (714) includes a fixed head and a rotating head. The fixed head is connected to the feed pump (713). 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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