A surface treatment device for extending the service life of a sucker rod

Abstract

The embodiment of the present application provides a surface treatment device for extending the service life of a sucker rod, and relates to the technical field of sucker rod processing equipment. The surface treatment device for extending the service life of a sucker rod comprises: a spraying main body, a rod conveying frame body, a rotation limiting mechanism, and a rod cooling mechanism. The connecting seat is fixed to the outside of the outer sleeve and connected to the fixing frame, and the elastic support portion connects the rolling positioning member and the outer sleeve. The connecting seat is fixed to the outside of the outer shell, and one end of the liquid inlet pipe is connected to the duckbill nozzle. The liquid refrigerant is sprayed out from the duckbill nozzle in the form of a flat fluid to the surface of the sucker rod after the thermal spray treatment. The sucker rod rotates while moving axially. The refrigerant sprayed from the duckbill nozzle can completely cover and cool the surface of the sucker rod after the thermal spray treatment. The refrigerant sprayed from the duckbill nozzle will fall into the bottom side of the inner shell after the sucker rod surface is cooled, and finally flows out through the return liquid pipe at the bottom of the outer shell.

Description

Technical Field

[0001] The present application relates to the technical field of sucker rod processing equipment, and in particular to a surface treatment device for extending the service life of a sucker rod. Background Art

[0002] In the sucker rod pumping system, the sucker rod is the key component connecting the surface pumping unit and the underground pump. The up and down reciprocating motion of the sucker rod drives the pump piston to reciprocate, thereby lifting the crude oil from the well to the surface.

[0003] In order to improve the surface strength of the sucker rod, thermal spraying equipment can be used to thermally spray the surface of the sucker rod, so that the outer surface of the sucker rod has a coating that provides good protection. Due to the long overall length of the sucker rod, it is difficult to quickly cool it down after thermal spraying with good processing equipment components. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a surface treatment device for extending the service life of a sucker rod to solve the problem that the sucker rod is long and it is difficult to quickly cool it down after thermal spraying.

[0005] According to an embodiment of the present application, a surface treatment device for extending the service life of a sucker rod includes: a spraying main body part, a rod conveying frame part, a rotation limiting mechanism and a rod cooling mechanism.

[0006] The spraying main body includes a stand and a thermal spraying assembly, and the thermal spraying assembly is installed above the stand;

[0007] The rod conveying frame body comprises a fixed frame, a fixed plate and an axial moving assembly, wherein the fixed plate connects the fixed frame and the platform, and multiple groups of the axial moving assemblies are equidistantly installed inside the fixed frame to drive the sucker rod to move axially;

[0008] The rotation limiting mechanism includes a connecting seat, an outer sleeve, a rolling positioning member, an elastic support portion and a third motor. The connecting seat is fixed to the outside of the outer sleeve and connected to the fixing frame. Multiple groups of rolling positioning members are distributed in an annular array inside the outer sleeve and cooperate with the third motor to drive the sucker rod to rotate. The elastic support portion connects the rolling positioning member and the outer sleeve.

[0009] The rod cooling mechanism includes an outer shell, a duckbill nozzle, a liquid inlet pipe and a liquid return pipe. The connecting seat is fixed to the outside of the outer shell, the duckbill nozzle is installed on the top inside the outer shell, one end of the liquid inlet pipe is connected to the duckbill nozzle, and the top end of the liquid return pipe is connected to the bottom of the outer shell.

[0010] Preferably, the rotation limiting mechanism and the rod cooling mechanism are arranged in close proximity, and a plurality of groups of the rotation limiting mechanism and the rod cooling mechanism are arranged between adjacent axially movable components.

[0011] Preferably, the thermal spraying assembly includes a support, a spray head and a frame, the support is installed above the platform to drive the frame to move in the vertical direction, and the spray head is installed in cooperation with the frame.

[0012] Preferably, the support member includes a first motor, a side frame and a threaded rod, the first motor is installed on the table, the side frame is fixed to the first motor, one end of the threaded rod is connected to the output shaft end of the first motor, and the other end of the threaded rod is rotatably set with the side frame, the seat frame is slidably set with the side frame, and the threaded rod is screwed through the seat frame.

[0013] Preferably, a waste collection trough is provided in the middle portion above the stand, and the waste collection trough is located below the sprayer head.

[0014] Preferably, the axial movement assembly includes a second motor, a first roller and a second roller. The first roller and the second roller are respectively rotatably arranged with the fixed frame, and the second motor is installed on the outside of the fixed frame to drive the first roller to rotate.

[0015] Preferably, the outer sides of the opposing surfaces of the first roller and the second roller are arranged in a truncated cone-shaped structure.

[0016] Preferably, the rolling positioning member includes a bracket and a roller, the roller is rotatably arranged on the inner side of the bracket, and the third motor is installed on the outer side of the bracket to drive the roller to rotate.

[0017] Preferably, the elastic support part includes a limit rod, a spring, a limit ring and a limit block, the two ends of the limit rod are respectively connected to the bracket and the limit block, the limit ring is fixed to the inner wall of the outer sleeve, the limit rod is movable through the limit ring, and the spring is arranged on the outside of the limit rod between the bracket and the limit ring.

[0018] Preferably, the elastic support parts are provided in at least two groups, and an anti-slip layer is provided on the outside of the roller.

[0019] Preferably, the rod cooling mechanism also includes a seal, which is connected and arranged at the end opening of the outer shell. The seal includes an outer flexible ring band, a hard ring, an inner flexible ring band, a flexible ring and a hard ring. The outer edge of the outer flexible ring band is connected to the inner edge of the opening of the outer shell. The hard ring, the inner flexible ring band and the flexible ring are connected and arranged on the inner side of the outer flexible ring band in sequence. A mounting ring hole is provided in the middle of the flexible ring, and the hard ring is provided in the mounting ring hole inside the flexible ring.

[0020] The surface treatment device for extending the service life of the sucker rod also includes a liquid retention disturbance component, which includes an arc-shaped shell, a liquid outlet shell, a connecting frame and a roller member. The liquid outlet shell is connected and arranged at the tail end of the arc-shaped shell to form a guide shell. The roller member is rotatably arranged inside the guide shell formed by the arc-shaped shell and the liquid outlet shell, and the arc structure on the side of the arc-shaped shell is coaxially arranged with the opening of the outer shell, and the arc opening curvature of the arc-shaped shell is consistent with the curvature of the opening of the outer shell. The connecting frame connects the outer wall of the arc-shaped shell and the inner wall of the outer shell.

[0021] Preferably, the roller component includes a roller body, a support ring and a prismatic bar. The interior of the roller body is a hollow structure, and the surface of the roller body is provided with multiple groups of liquid storage tanks connected to the internal hollow structure. The support ring is arranged in the middle of the roller body, and the prismatic bar is fixedly arranged in the hollow structure inside the roller body, and the edges of the prismatic bar are arranged facing the liquid storage tank.

[0022] The beneficial effects of the present application are as follows: the present application obtains a surface treatment device for extending the service life of a sucker rod through the above-mentioned design, wherein the liquid refrigerant is ejected from the duckbill nozzle in the form of a flat fluid onto the surface of the sucker rod after thermal spray treatment. The sucker rod rotates while moving axially. The refrigerant ejected from the duckbill nozzle can completely cover and cool the surface of the sucker rod after thermal spray treatment. The refrigerant ejected from the duckbill nozzle will fall into the bottom side of the outer shell after the sucker rod surface is cooled, and finally flows out through the return liquid pipe at the bottom of the outer shell. The sucker rod after thermal spray treatment will be subjected to graded cooling treatment through multiple groups of rod cooling mechanisms. This arrangement will also enable the sucker rod after thermal spray treatment to complete rapid cooling.

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 2. It is a schematic structural diagram of a surface treatment device for extending the service life of a sucker rod according to an embodiment of the present application;

[0026] Figure 2 1 is a schematic structural diagram of the spraying main body according to an embodiment of the present application;

[0027] Figure 3is a schematic structural diagram of a thermal spray assembly according to an embodiment of the present application;

[0028] Figure 4 This is a schematic structural diagram of a rod conveying frame, a rotation limiting mechanism, and a rod cooling mechanism according to an embodiment of the present application;

[0029] Figure 5 is a schematic structural diagram of an axial movement assembly according to an embodiment of the present application;

[0030] Figure 6 Schematic diagram of the structure of the rotation limiting mechanism and the rod cooling mechanism according to an embodiment of the present application;

[0031] Figure 7 is a structural schematic diagram of a rotation limiting mechanism according to an embodiment of the present application;

[0032] Figure 8 is a schematic structural diagram of a rolling positioning member, an elastic support portion, and a third motor according to an embodiment of the present application;

[0033] Figure 9 is a schematic diagram of the internal structure of the rod cooling mechanism according to an embodiment of the present application;

[0034] Figure 10 is a schematic diagram of the cross-sectional structure of a seal according to an embodiment of the present application;

[0035] Figure 11 1 is a schematic structural diagram of a liquid retention disturbance assembly according to an embodiment of the present application;

[0036] Figure 12 is a structural schematic diagram of a roller component according to an embodiment of the present application;

[0037] Figure 13 Schematic diagram of the outer shell structure according to an embodiment of the present application.

[0038] icon:

[0039] 10-Spraying main body; 110-Stand; 120-Thermal spraying assembly; 121-Support; 1211-First motor; 1212-Side frame; 1213-Threaded rod; 122-Spraying machine head; 123-Bed; 130-Waste collection trough; 20-Rod conveying frame; 210-Fixed frame; 220-Fixed plate; 230-Axial movement assembly; 231-Second motor; 232-First roller; 233-Second roller; 30-Rotation limiting mechanism; 310-Connecting seat; 320-Outer sleeve; 330-Rolling positioning member; 331-Bracket; 332-Roller; 340-Elastic support; 34 1-limit rod; 342-spring; 343-limit ring; 344-limit block; 350-third motor; 40-rod cooling mechanism; 410-outer shell; 420-duckbill nozzle; 430-liquid inlet pipe; 440-liquid return pipe; 450-seal; 451-outer flexible ring; 452-hard ring; 453-inner flexible ring; 454-flexible ring; 455-hard ring; 460, port; 50-liquid retention disturbance component; 510-arc shell; 520-liquid outlet shell; 530-connecting frame; 540-roller component; 541-roller body; 542-liquid storage tank; 543-support ring; 544-prismatic strip. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0041] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0042] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] A surface treatment device for extending the service life of a sucker rod according to an embodiment of the present application will be described below with reference to the accompanying drawings.

[0044] See also Figures 1-9According to an embodiment of the present application, a surface treatment device for extending the service life of a sucker rod includes: a spraying main body part 10, a rod conveying frame part 20, a rotation limiting mechanism 30 and a rod cooling mechanism 40.

[0045] Among them, the spraying main body part 10 is used for thermal spraying processing of the sucker rod, the rod conveying frame part 20 cooperates with the rotation limiting mechanism 30 to complete the workpiece transportation of the sucker rod at the work station, and the rod cooling mechanism 40 completes the rapid cooling processing operation after the thermal spraying treatment, thereby improving the cooling efficiency of the sucker rod after processing.

[0046] The spraying main body 10 includes a stand 110 and a thermal spray assembly 120. The thermal spray assembly 120 is installed above the stand 110. The rod conveying frame part 20 includes a fixed frame 210, a fixed plate 220 and an axial moving assembly 230. The fixed plate 220 connects the fixed frame 210 and the stand 110. Multiple groups of axial moving assemblies 230 are equidistantly installed inside the fixed frame 210 to drive the sucker rod to move axially. The rotation limiting mechanism 30 includes a connecting seat 310, an outer sleeve 320, a rolling positioning member 330, an elastic support part 340 and a third motor 350. The connecting seat 310 is fixed to the outside of the outer sleeve 320 and connected to the fixed frame 210. Multiple groups of rolling positioning members 330 are distributed in a ring array inside the outer sleeve 320 to cooperate with the third motor 350 to drive the sucker rod to rotate. The elastic support part 340 connects the rolling positioning member 330 and the outer sleeve 320. The rod cooling mechanism 40 includes an outer shell 410, a duckbill nozzle 420, a liquid inlet pipe 430, and a liquid return pipe 440. The connector 310 is fixed to the exterior of the outer shell 410, while the duckbill nozzle 420 is mounted on the top of the inner shell 410. One end of the liquid inlet pipe 430 is connected to the duckbill nozzle 420, and the top end of the liquid return pipe 440 is connected to the bottom of the outer shell 410. The rod cooling mechanism 40 is located in front of the rotation limiter 30 after the thermal spray assembly 120 is processed.

[0047] One end of the sucker rod is axially moved from the axial moving assembly 230 on the fixed frame 210 to be loaded, and the sucker rod passes through the rotary limit mechanism 30 to contact the rolling positioning member 330. The third motor 350 drives the rolling positioning member 330 to drive the axially moving sucker rod to rotate and adjust synchronously. The axial moving assembly 230 drives the upper sucker rod to move along the axial position and gradually load the material to the thermal spray assembly 120. The thermal spray assembly 120 performs thermal spray treatment on the outer surface of the sucker rod. Since the sucker rod is rotating while moving axially, the thermal spray assembly 120 can cooperate to completely complete the thermal spray treatment operation on the outer surface of the sucker rod. During the thermal spray treatment of the sucker rod surface, the sucker rod portion that has undergone heat treatment passes through the rod cooling mechanism 40. The refrigerant enters the duckbill nozzle 420 inside the outer shell 410 from the liquid inlet pipe 430. The liquid refrigerant is ejected from the duckbill nozzle 420 as a flat fluid onto the surface of the thermally sprayed sucker rod. Because the sucker rod rotates while moving axially, the refrigerant ejected from the duckbill nozzle 420 can completely cover and cool the surface of the thermally sprayed sucker rod. After the sucker rod surface is cooled, the refrigerant ejected from the duckbill nozzle 420 falls to the bottom side of the outer shell 410 and eventually flows out through the return pipe 440 at the bottom of the outer shell 410. The thermally sprayed sucker rod will undergo a staged cooling process through multiple rod cooling mechanisms 40. This arrangement also allows for rapid cooling of the thermally sprayed sucker rod.

[0048] The surface treatment device for extending the service life of the sucker rod does not adopt a continuous spray cooling method, but instead adopts an intermittent spraying method to cool the sucker rod after thermal spray treatment. This cooling treatment method can prevent the refrigerant liquid from continuously contacting the sucker rod surface, causing excessive cooling and damage to the thermal spray coating. It also plays a good protective role while achieving stable and rapid cooling.

[0049] In the specific configuration, the rotation limiting mechanism 30 and the rod cooling mechanism 40 are closely mounted, and multiple sets of the rotation limiting mechanism 30 and the rod cooling mechanism 40 are disposed between adjacent axially movable assemblies 230. The rod cooling mechanism 40 is disposed on the fixed frame 210 behind the thermal spray assembly 120.

[0050] For further information, see Figure 3The thermal spraying assembly 120 includes a support member 121, a spray head 122 and a seat 123. The support member 121 is installed above the stand 110 to drive the seat 123 to move in the vertical direction, and the spray head 122 is installed in conjunction with the seat 123. The support member 121 includes a first motor 1211, a side frame 1212 and a threaded rod 1213. The first motor 1211 is installed on the stand 110, the side frame 1212 is fixed to the first motor 1211, one end of the threaded rod 1213 is connected to the output shaft end of the first motor 1211, and the other end of the threaded rod 1213 is rotatably set with the side frame 1212, the seat 123 is slidably set with the side frame 1212, and the threaded rod 1213 is screwed through the seat 123.

[0051] The output shaft end of the first motor 1211 in the support member 121 is connected to the threaded rod 1213 via a coupling. The output shaft end of the first motor 1211 can drive the threaded rod 1213 to rotate. The rotating threaded rod 1213 drives the base 123 to move in the vertical direction, thereby driving the spray head 122 on the base 123 to adjust the vertical distance between the spray head 122 and the sucker rod.

[0052] For details, please refer to Figure 2 A waste collection trough 130 is provided in the middle of the upper portion of the stand 110 and is located below the spray head 122. The waste collection trough 130 can be used to collect waste during processing operations.

[0053] In the above specific implementation, please refer to Figure 5 The axial movement assembly 230 includes a second motor 231, a first roller 232, and a second roller 233. The first roller 232 and the second roller 233 are respectively rotatably arranged with the fixed frame 210. The second motor 231 is installed on the outside of the fixed frame 210 to drive the first roller 232 to rotate. The output shaft end of the second motor 231 is connected to the first roller 232 through a coupling. The rotating first roller 232 cooperates with the second roller 233 to drive the sucker rod placed above to move. The first roller 232 and the second roller 233 in adjacent axial movement assemblies 230 are arranged in opposite directions, that is, the driven first roller 232 is located on the opposite side of the fixed frame 210, which can make the sucker rod above the first roller 232 and the second roller 233 move more smoothly.

[0054] Furthermore, the outer sides of the opposing surfaces of the first roller 232 and the second roller 233 are arranged in a truncated cone-shaped structure. The relative positions of the first roller 232 and the second roller 233 of the truncated cone-shaped structure have a certain inclination angle. When the sucker rod between the first roller 232 and the second roller 233 moves and rotates, it is not easy to deviate from its axial position.

[0055] For specific settings, see Figure 8The rolling positioning member 330 includes a bracket 331 and a roller 332. The roller 332 is rotatably arranged on the inner side of the bracket 331, and the third motor 350 is installed on the outer side of the bracket 331 to drive the roller 332 to rotate. The elastic support part 340 includes a limiting rod 341, a spring 342, a limiting ring 343 and a limiting block 344. The two ends of the limiting rod 341 are respectively connected to the bracket 331 and the limiting block 344, the limiting ring 343 is fixed to the inner wall of the outer sleeve 320, the limiting rod 341 movably passes through the limiting ring 343, and the spring 342 is sleeved on the outside of the limiting rod 341 located between the bracket 331 and the limiting ring 343.

[0056] The output shaft end of the third motor 350 is connected to one end of the roller 332. The output shaft end of the third motor 350 can drive the roller 332 inside the bracket 331 to rotate. Under the elastic pressure of the spring 342 in the elastic support part 340, multiple groups of rollers 332 can be elastically clamped on the outer surface of the sucker rod. The rotating rollers 332 will drive the sucker rod to rotate and adjust.

[0057] Furthermore, the elastic support part 340 is provided in at least two groups, and an anti-skid layer is provided on the outside of the roller 332. The anti-skid layer increases the friction between the roller 332 and the surface of the sucker rod, so that the sucker rod is not prone to slipping when rotating.

[0058] When the rod cooling mechanism 40 of the surface treatment device for extending the service life of the sucker rod is cooling, part of the refrigerant liquid sprayed on the surface of the sucker rod from the duckbill nozzle 420 tends to flow out from the opening 460 at the end of the outer shell 410, thereby causing part of the refrigerant liquid to fall on the equipment and cannot be recovered further.

[0059] In the above specific implementation, please refer to Figure 9 、 Figure 10 and Figure 13 The rod cooling mechanism 40 further includes a seal 450, which is connected to the opening 460 at the end of the outer shell 410. The seal 450 includes an outer flexible band 451, a hard ring 452, an inner flexible band 453, a flexible ring 454, and a hard ring 455. The outer edge of the outer flexible band 451 is connected to the inner edge of the opening 460 of the outer shell 410, and the outer flexible band 451 and the inner edge of the opening 460 of the outer shell 410 are fixed by adhesive bonding. The hard ring 452, the inner flexible band 453, and the flexible ring 454 are sequentially connected to the inner side of the outer flexible band 451. A mounting ring hole is provided in the middle of the flexible ring 454, and the hard ring 455 is disposed in the mounting ring hole inside the flexible ring 454. The outer flexible band 451 , the inner flexible band 453 and the flexible ring 454 may be made of flexible materials such as rubber or latex, and the hard ring 452 and the hard ring 455 may be made of hard alloy material.

[0060] The refrigerant liquid is sprayed from the duckbill nozzle 420 onto the surface of the sucker rod located inside the outer shell 410 through the liquid inlet pipe 430. Most of the oil sprayed on the surface of the sucker rod will fall directly to the bottom side of the inner shell 410 under the action of gravity. Since the sucker rod rotates inside the outer shell 410, it also moves along the axial position. When the sucker rod moving to the left causes the seals 450 on both sides of the outer shell 410 to deviate to the left to form a cone-shaped structure, the flexible ring 454 in the seal 450 on the left side of the outer shell 410 will scrape off the coolant on the surface of the sucker rod after being sprayed. The scraped coolant flows along the side wall of the seal 450 inside the outer shell 410 to the bottom side of the inner shell 410. The seal 450 on the right side of the outer shell 410 is also deflected to the left by the pulling force of the sucker rod when it moves. The flexible ring 454 in the seal 450 on the right side of the outer shell 410, in conjunction with the outer flexible ring band 451, the hard ring 452, and the inner flexible ring band 453, mainly prevents the coolant sprayed by the duckbill nozzle 420 inside the outer shell 410 from splashing out from the opening 460 on the right side of the outer shell 410. The coolant sprayed on the inner wall of the seal 450 on the right side of the outer shell 410 will also flow down to the bottom side of the inner shell 410. This can reduce the leakage of refrigerant liquid and improve the efficiency of refrigerant liquid collection.

[0061] Before the sucker rod enters the outer shell 410 and passes through the seal 450, the seal 450 is in a vertical plane. When the moving sucker rod passes through the flexible ring 454 inside the seal 450, the surface of the sucker rod will come into contact with the surface of the flexible ring 454. The flexible ring 454 is configured as an annular structure with a circular cross-section, which reduces the contact area between the flexible ring 454 and the sucker rod surface, that is, reduces the friction between the flexible ring 454 and the sucker rod, ensuring that the flexible ring 454 can stably scrape the coolant on the surface of the sucker rod while not causing excessive resistance to the axially moving sucker rod. The configuration of the hard ring 455 and the hard ring 452 gives the seal 450 as a whole a good anti-twist effect. The axially moving sucker rod is also rotating at the same time. When rotational friction occurs between the rotating sucker rod surface and the flexible ring 454, the hard ring 455 and the hard ring 452 can be used to support the flexible ring 454 to prevent it from twisting and deforming, thereby ensuring that the flexible ring 454 can smoothly scrape the coolant on the surface of the sucker rod.

[0062] Seals 450 are provided on both sides of the outer shell 410 to prevent the coolant sprayed on the surface of the sucker rod from splashing out from the opening 460 at the end of the outer shell 410, thereby playing a good barrier and collection role.

[0063] The oil sprayed from the duckbill nozzle 420 is directly poured onto the upper surface of the sucker rod, and then falls directly into the outer shell 410 under the action of gravity and is collected. It cannot be reused inside the outer shell 410 to improve the cooling effect.

[0064] See also Figure 9 、 Figure 11 and Figure 12 The surface treatment device for extending the service life of a sucker rod further includes a liquid retention and disturbance assembly 50, which comprises an arcuate shell 510, a liquid outlet shell 520, a connecting frame 530, and a roller member 540. The liquid outlet shell 520 is connected to the rear end of the arcuate shell 510 to form a flow guide housing. The roller member 540 is rotatably disposed within the flow guide housing formed by the arcuate shell 510 and the liquid outlet shell 520. The arcuate structure on the side of the arcuate shell 510 is coaxially arranged with the opening 460 of the outer shell 410, and the curvature of the arcuate opening of the arcuate shell 510 is consistent with the curvature of the opening 460 of the outer shell 410. The connecting frame 530 connects the outer wall of the arcuate shell 510 to the inner wall of the outer shell 410. The roller member 540 includes a roller body 541, a support ring 543, and prismatic bars 544. The interior of the roller body 541 is a hollow structure, and the surface of the roller body 541 is provided with multiple groups of liquid storage tanks 542 connected to the internal hollow structure. The support ring 543 is arranged in the middle of the roller body 541, and the prism bar 544 is fixedly arranged in the internal hollow structure of the roller body 541, and the edge of the prism bar 544 is arranged facing the liquid storage tank 542.

[0065] The coolant flowing from the duckbill nozzle 420 onto the sucker rod will rotate along with the sucker rod until the coolant reaches the bottom of the sucker rod and lands inside the outer casing 410. The coolant adhering to the surface of the rotating sucker rod will fall into the curved shell 510. The coolant collected within the curved shell 510 will also flow along the curved shell 510 and onto the roller element 540 between the curved shell 510 and the liquid outlet shell 520, flowing through the liquid storage tank 542 on the outside of the roller element 540 into its internal hollow structure. The roller body 541 and support ring 543 in the roller element 540 are in contact with the outer surface of the sucker rod. The rotating sucker rod also drives the roller element 540 to rotate due to friction. As the prism strips 544 rotate, the coolant ejected from the edges of the rotating prism strips 544 directly hits the bottom of the sucker rod from the reservoir 542, thereby increasing the contact area of ​​the bottom of the sucker rod with the coolant and completing a secondary cooling, thereby enhancing the cooling effect of the coolant on the sucker rod after thermal spraying.

[0066] It should be noted that the specific models and specifications of the first motor 1211, the second motor 231, and the third motor 350 are selected based on the actual specifications of the device. The specific selection and calculation methods use existing technologies in the field and are therefore not described in detail here. The power supply and principles of the first motor 1211, the second motor 231, and the third motor 350 are clear to those skilled in the art and are not described in detail here.

[0067] The foregoing is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

[0068] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A surface treatment device for extending the service life of a sucker rod, characterized in that: include: A spraying main body (10), the spraying main body (10) comprising a stand (110) and a thermal spraying assembly (120), the thermal spraying assembly (120) being installed above the stand (110); A rod conveying frame body part (20), the rod conveying frame body part (20) comprising a fixed frame (210), a fixed plate (220) and an axial movement assembly (230), the fixed plate (220) connecting the fixed frame (210) and the platform (110), and a plurality of groups of the axial movement assemblies (230) being equidistantly installed inside the fixed frame (210) to drive the sucker rod to move axially; A rotation limiting mechanism (30), the rotation limiting mechanism (30) comprising a connecting seat (310), an outer sleeve (320), a rolling positioning member (330), an elastic support portion (340) and a third motor (350), the connecting seat (310) being fixed to the outside of the outer sleeve (320) and connected to the fixing frame (210), a plurality of groups of the rolling positioning members (330) being arranged inside the outer sleeve (320) and cooperating with the third motor (350) to drive the sucker rod to rotate, and the elastic support portion (340) connecting the rolling positioning member (330) and the outer sleeve (320); A rod cooling mechanism (40), the rod cooling mechanism (40) comprising an outer shell (410), a duckbill nozzle (420), a liquid inlet pipe (430) and a liquid return pipe (440), the connecting seat (310) being fixed to the outside of the outer shell (410), one end of the liquid inlet pipe (430) being connected to the duckbill nozzle (420), and the top end of the liquid return pipe (440) being connected to the bottom of the outer shell (410); The rotation limiting mechanism (30) and the rod cooling mechanism (40) are arranged in close contact with each other, and multiple groups of the rotation limiting mechanism (30) and the rod cooling mechanism (40) are arranged between adjacent axial moving components (230). The thermal spraying component (120) includes a support member (121), a spraying head (122) and a seat (123). The support member (121) is installed above the platform (110) to drive the seat (123) to move in the vertical direction. The spraying head (122) is installed in conjunction with the seat (123). The support member (121) The invention comprises a first motor (1211), a side frame (1212) and a threaded rod (1213), wherein the first motor (1211) is mounted on the platform (110), the side frame (1212) and the first motor (1211) are fixedly arranged, one end of the threaded rod (1213) is connected to the output shaft end of the first motor (1211), and the other end of the threaded rod (1213) is rotatably arranged with the side frame (1212), the seat frame (123) and the side frame (1212) are slidably arranged, and the threaded rod (1213) is screwed through the seat frame (123); The axial moving assembly (230) includes a second motor (231), a first roller (232) and a second roller (233), the first roller (232) and the second roller (233) being rotatably arranged with the fixed frame (210), respectively, the second motor (231) being installed on the outside of the fixed frame (210) to drive the first roller (232) to rotate, the outsides of the opposing surfaces of the first roller (232) and the second roller (233) being arranged in a truncated cone-shaped structure, the rolling positioning member (330) including a bracket (331) and a roller (332), the roller (332) being rotatably arranged on the inside of the bracket (331), The third motor (350) is installed on the outside of the bracket (331) to drive the roller (332) to rotate. The elastic support part (340) includes a limiting rod (341), a spring (342), a limiting ring (343) and a limiting block (344). The two ends of the limiting rod (341) are respectively connected to the bracket (331) and the limiting block (344). The limiting ring (343) is fixed to the inner wall of the outer sleeve (320). The limiting rod (341) movably passes through the limiting ring (343), and the spring (342) is sleeved on the outside of the limiting rod (341) located between the bracket (331) and the limiting ring (343).

2. The surface treatment device for extending the service life of a sucker rod according to claim 1, characterized in that: A waste collection trough (130) is provided in the middle of the upper portion of the platform (110), and the waste collection trough (130) is located below the sprayer head (122).

3. The surface treatment device for extending the service life of a sucker rod according to claim 1, characterized in that: The elastic support parts (340) are provided in at least two groups, and an anti-slip layer is provided on the outside of the roller (332).

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