A corrosion-resistant spraying device for sucker rod production

Abstract

This invention provides a corrosion-resistant liquid spraying device for sucker rod production, relating to the field of sucker rod manufacturing. The device includes a rolling assembly, an alternating feeding assembly, and a spraying treatment assembly. Both the alternating feeding assembly and the spraying treatment assembly are located on top of the rolling assembly. The rolling assembly rotates the sucker rod to ensure uniform spraying of the corrosion-resistant liquid. The alternating feeding assembly alternately feeds the sucker rod to its working area. The spraying treatment assembly sprays the corrosion-resistant liquid onto the sucker rods rotating in the alternating feeding assembly and then dries the sprayed sucker rods. By alternately placing the sucker rods with forks and transferring them alternately to the spraying area, one set of sucker rods can be sprayed while another set is being dried, thus achieving uninterrupted continuous spraying and improving the efficiency of the corrosion-resistant liquid spraying operation.

Description

Technical Field

[0001] This invention relates to the field of sucker rod manufacturing technology, specifically to a device for spraying anti-corrosion liquid in sucker rod manufacturing. Background Technology

[0002] The sucker rod is a slender rod in a pumping well, usually made of low-carbon alloy steel that has undergone quenching and tempering. It connects to the polished rod at the top and the pump at the bottom to transmit power. Inside the tubing, the sucker rods are connected one by one with internal threaded clamps and extend to the piston at the underground oil layer. They pump oil through reciprocating motion.

[0003] Because sucker rods are subjected to complex and extreme environments during oil well operations, higher requirements are placed on their corrosion resistance for the sustainability of oil well operations. Existing methods for applying anti-corrosion liquid to the surface of sucker rods during production are mostly immersion or manual spraying, which are time-consuming and inefficient. Therefore, this application proposes an anti-corrosion liquid spraying device for sucker rod production that can perform alternating feeding to improve work efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an anti-corrosion liquid spraying device for sucker rod production, which solves the problems of long processing time and low work efficiency in existing anti-corrosion liquid application methods for sucker rods.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a corrosion-resistant liquid spraying device for sucker rod production, comprising a rolling assembly, an alternating feeding assembly, and a spraying treatment assembly. The alternating feeding assembly and the spraying treatment assembly are both disposed on top of the rolling assembly. The rolling assembly is used to roll the sucker rod so that it can be uniformly sprayed with corrosion-resistant liquid. The alternating feeding assembly is used to alternately feed the sucker rod to the working part of the alternating feeding assembly. The spraying treatment assembly is used to perform corrosion-resistant liquid spraying on the sucker rod rolling in the alternating feeding assembly and to perform drying treatment on the sprayed sucker rod.

[0006] The rolling assembly includes a base, with first sliding grooves on both sides of the top of the base. Multiple movable columns are slidably connected inside each of the first sliding grooves. Drive rollers are rotatably connected to the upper outer sides of each movable column. Multiple fixed columns are installed on the top of the base, adjacent to the outer openings of the first sliding grooves on both sides. Driven rollers are rotatably connected to the upper inner sides of each fixed column. A transfer case housing is installed on one side of the top of the base, corresponding to the outer side of each of the fixed columns on that side. A main shaft is rotatably connected to the center of each transfer case housing. The adjacent main shafts are connected by couplings. Each main shaft is equipped with a drive bevel gear in the middle. The inner side of each transfer case housing is rotatably connected to a side shaft. One end of each side shaft is equipped with a driven bevel gear, which meshes with the corresponding drive bevel gear. The other end of each side shaft is fixedly connected to the shaft of each adjacent driven roller. A second servo motor is installed on the top of the base, next to one end of the transfer case housing. The drive end of the second servo motor is connected to one end of the main shaft inside the transfer case housing via a coupling.

[0007] Preferably, a first screw is rotatably connected to the center of each of the first slide grooves, and the outer side of the first screw is threadedly connected to the lower part of the interior of the movable column. An installation chamber is provided at the top of the base, close to one end of the first slide grooves on both sides. A first servo motor is installed inside each installation chamber, and the drive end of the first servo motor on both sides is fixedly connected to one end of the corresponding first screw.

[0008] Preferably, a first recycling trough is provided in the middle of the top of the base.

[0009] Preferably, the alternating feeding assembly includes two second sliding grooves respectively opened at the front and rear ends of the top of the base. A slider is slidably connected to one end and the middle of the inner side of the second sliding groove. A lifting frame is provided at one end and the middle of the upper side of the base. Hydraulic rods are installed at the four bottom corners of the lifting frame. The bottom ends of the hydraulic rods are respectively installed on the top of the slider. Multiple pairs of forks are evenly installed on the top of the lifting frame from front to back. A second screw is rotatably connected to the middle of the second sliding groove. The outer side of the second screw is respectively threaded to the lower inner side of the slider. One end of the second screw passes through the side of the base and is connected to a third servo motor. The housing of the third servo motor is respectively installed on the side of the base.

[0010] Preferably, a second recycling trough is provided on both sides of the top of the base.

[0011] Preferably, a top frame is installed above the top of the base, a pump is installed on the top of the top frame, the inlet of the pump is connected to the anti-corrosion liquid storage container through a pipe, a pipe is installed in the middle of the bottom of the top frame and the pipe is connected to the outlet of the pump, and multiple nozzles are connected and installed at the bottom of the pipe.

[0012] Preferably, multiple hot air fans are installed on both sides of the bottom of the top frame.

[0013] Preferably, a method of using an anti-corrosion liquid spraying device for sucker rod production includes the following steps:

[0014] S1. Place multiple sucker rods in the forks at the top of the outer lifting frame in sequence, with each pair of forks supporting one rod. The third servo motor moves synchronously, thereby driving the second screw to rotate. The slider moves synchronously under the limiting and guiding action of the second slide groove, and the lifting frame is raised by extending the hydraulic rod to pass over the fixed column, driven roller, moving column, and driving roller.

[0015] S2. When the lifting frame supporting the sucker rods moves above the first recovery tank, the hydraulic rods retract synchronously, so that each sucker rod can be supported by the driven rollers and the adjacent drive rollers, and press against the upper surfaces of the two under the action of gravity.

[0016] S3. The second servo motor is activated, which drives each main shaft to rotate. Under the transmission action of the drive bevel gear and the driven bevel gear, each side shaft rotates, which in turn causes each connected driven roller to rotate. Due to friction, each sucker rod rotates. At this time, the pump works to spray the anti-corrosion liquid downward through the pipe and nozzle, so that the surface of the rotating sucker rod is evenly coated with the anti-corrosion liquid.

[0017] S4. When the fork with the sucker rod already placed is being sprayed, another empty fork that has been moved to the outside will simultaneously place another set of sucker rods to be sprayed.

[0018] S5. After the spraying is completed, the alternating feeding components reverse the action. Similarly, the sprayed sucker rods can be moved out of the spraying work area. Meanwhile, another set of sucker rods to be sprayed, which were placed synchronously in S4, will be transferred to the spraying work area and sprayed. At this time, the sucker rods that have just been moved out of the spraying work area will be dried by hot air under the action of the hot air blower.

[0019] S6. In the above steps, the forklifts alternately place the sucker rods and alternately transfer and transport them to the spraying area. This allows one set of sucker rods to be sprayed while another set is being dried. During the spraying process of one set of sucker rods, simply replace the dried sucker rods with the sucker rods to be sprayed to achieve uninterrupted continuous spraying.

[0020] This invention provides a device for spraying anti-corrosion liquid in sucker rod production. It has the following beneficial effects:

[0021] 1. This invention uses a forklift to alternately place sucker rods and transfer them alternately to the spraying area. This allows one set of sucker rods to be sprayed while another set is being dried. During the spraying process of one set of sucker rods, simply replacing the dried sucker rods with the ones to be sprayed will enable uninterrupted continuous spraying and improve the efficiency of anti-corrosion liquid spraying.

[0022] 2. In this invention, when the diameter of the sucker rod used for spraying changes, in order to obtain a good supporting effect between the driven roller and the adjacent driving roller, the first screw can be synchronously driven to rotate by the first servo motor. Then, the moving column can move under the limiting and guiding action of the first slide groove, thereby changing the distance between the driven roller and the adjacent driving roller, adapting to different rod diameters, and having better adaptability. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the combination of the rolling assembly and the alternating feeding assembly of the present invention;

[0025] Figure 3 This is a schematic diagram of the base of the present invention;

[0026] Figure 4 This is a schematic diagram of the rolling assembly of the present invention;

[0027] Figure 5 This is a schematic diagram of the interior of the transfer case housing of the present invention;

[0028] Figure 6 This is a schematic diagram of the alternating feeding assembly of the present invention.

[0029] The components include: 1. Rolling assembly; 101. Base; 102. First recycling tank; 103. First chute; 104. Installation chamber; 105. Fixed column; 106. Driven roller; 107. First screw; 108. First servo motor; 109. Moving column; 110. Drive roller; 111. Transfer box housing; 112. Main shaft; 113. Side shaft; 114. Second servo motor; 2. Alternating feeding assembly; 201. Second chute; 202. Second recycling tank; 203. Second screw; 204. Slider; 205. Hydraulic rod; 206. Lifting frame; 207. Fork; 208. Third servo motor; 3. Spraying assembly; 301. Top frame; 302. Pipe; 303. Pump; 304. Hot air blower. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example:

[0032] like Figure 1-6 As shown, this embodiment of the invention provides an anti-corrosion liquid spraying device for sucker rod production, including a rolling assembly 1, an alternating feeding assembly 2, and a spraying treatment assembly 3. The alternating feeding assembly 2 and the spraying treatment assembly 3 are both disposed on the top of the rolling assembly 1. The rolling assembly 1 is used to roll the sucker rod so that it can be uniformly sprayed with anti-corrosion liquid. The alternating feeding assembly 2 is used to alternately feed material to the working part of the alternating feeding assembly 2. The spraying treatment assembly 3 is used to perform anti-corrosion liquid spraying operation on the sucker rod rolling in the alternating feeding assembly 2 and to perform drying treatment operation on the sprayed sucker rod.

[0033] Specifically, the rolling assembly 1 includes a base 101. First grooves 103 are formed on both sides of the top of the base 101. Multiple movable columns 109 are slidably connected inside each of the first grooves 103. Drive rollers 110 are rotatably connected to the upper outer sides of each movable column 109. Multiple fixed columns 105 are installed on the top of the base 101, adjacent to the outer openings of the first grooves 103 on both sides. Driven rollers 106 are rotatably connected to the upper inner sides of each fixed column 105. A transfer case housing 111 is installed on one side of the top of the base 101, corresponding to the outer side of each fixed column 105 on that side. A rotatable drive roller 110 is rotatably connected to the middle of each transfer case housing 111. A main shaft 112 is connected to each other, and adjacent main shafts 112 are connected by a coupling. A drive bevel gear is installed in the middle of each main shaft 112. A side shaft 113 is rotatably connected to the inner side of each transfer case housing 111. A driven bevel gear is installed at one end of each side shaft 113. The driven bevel gears are respectively meshed with the corresponding drive bevel gears. The other end of the side shaft 113 is fixedly connected to the rotating shaft of each adjacent driven roller 106. A second servo motor 114 is installed on the top of the base 101 at the side of one end of the transfer case housing 111. The drive end of the second servo motor 114 is connected to one end of the main shaft 112 inside the transfer case housing 111 through a coupling.

[0034] Furthermore, a first screw 107 is rotatably connected to the center of the first slide groove 103. The outer side of the first screw 107 is threadedly connected to the lower part of the movable column 109. An installation chamber 104 is provided at the top of the base 101 close to one end of the slot of the first slide groove 103 on both sides. A first servo motor 108 is installed inside the installation chamber 104. The drive end of the first servo motor 108 on both sides is fixedly connected to one end of the corresponding first screw 107.

[0035] In this embodiment, when the diameter of the sucker rod used for spraying changes, in order to obtain a good supporting effect between the driven roller 106 and the adjacent drive roller 110, the first servo motor 108 can synchronously drive the first screw 107 to rotate. This causes the moving column 109 to move under the limiting and guiding action of the first slide groove 103, thereby changing the distance between the driven roller 106 and the adjacent drive roller 110. This adapts to different rod diameters and provides better usability.

[0036] Furthermore, a first recycling tank 102 is provided in the middle of the top of the base 101 to collect excess anti-corrosion liquid sprayed out during the spraying operation.

[0037] Specifically, the alternating feeding assembly 2 includes two second slide grooves 201 respectively opened at the front and rear ends of the top of the base 101. A slider 204 is slidably connected to one end and the middle of the inner side of the second slide groove 201. A lifting frame 206 is provided at one end and the middle of the upper side of the base 101. Hydraulic rods 205 are installed at the four corners of the bottom of the lifting frame 206. The bottom ends of the hydraulic rods 205 are respectively installed on the top of the slider 204. Multiple pairs of forks 207 are evenly installed on the top of the lifting frame 206 from front to back. A second screw 203 is rotatably connected to the middle of the second slide groove 201. The outer side of the second screw 203 is respectively threaded to the lower inner side of the slider 204. One end of the second screw 203 passes through the side of the base 101 and is connected to a third servo motor 208. The outer shell of the third servo motor 208 is respectively installed on the side of the base 101.

[0038] Furthermore, a second recovery tank 202 is provided on both sides of the top of the base 101 to collect the anti-corrosion liquid dripping from the sucker rod during the drying operation.

[0039] Specifically, a top frame 301 is installed on the top of the base 101, and a pump 303 is installed on the top of the top frame 301. The inlet of the pump 303 can be connected to the anti-corrosion liquid storage container through a pipe. A pipe 302 is installed in the middle of the bottom of the top frame 301 and is connected to the outlet of the pump 303. The bottom of the pipe 302 is connected and installed with multiple nozzles. Multiple hot air fans 304 are installed on both sides of the bottom of the top frame 301.

[0040] Furthermore, to demonstrate the working process of the above structure, this embodiment also provides a method for using the anti-corrosion liquid spraying device for sucker rod production, including the following steps:

[0041] S1. Multiple sucker rods are placed sequentially in the forks 207 at the top of the outer lifting frame 206, with each pair of forks 207 supporting one rod. The third servo motor 208 operates synchronously, thereby driving the second screw 203 to rotate. The slider 204 moves synchronously under the limiting and guiding action of the second slide groove 201, and the lifting frame 206 is raised by the extension of the hydraulic rod 205 to pass over the fixed column 105, the driven roller 106, the moving column 109, and the driving roller 110.

[0042] S2. When the lifting frame 206 supporting the sucker rods moves above the first recovery tank 102, the hydraulic rods 205 retract synchronously, so that each sucker rod can be supported by the driven roller 106 and the adjacent drive roller 110, and press against the upper surface of the two under the action of gravity.

[0043] S3. The second servo motor 114 is activated, which drives each main shaft 112 to rotate. Under the transmission action of the drive bevel gear and the driven bevel gear, each side shaft 113 rotates, which in turn causes each connected driven roller 106 to rotate. Due to friction, each sucker rod rotates. At this time, the pump 303 works to spray the anti-corrosion liquid downward through the pipe 302 and the nozzle, so that the surface of the rotating sucker rod is evenly coated with the anti-corrosion liquid.

[0044] S4. When the fork 207 with the sucker rod already placed is performing a spraying operation, another empty fork 207 that has been moved to the outside will simultaneously place another set of sucker rods to be sprayed.

[0045] S5. After the spraying is completed, the alternating feeding component 2 moves in the opposite direction. Similarly, the sprayed sucker rod can be moved out of the spraying operation area. Meanwhile, another set of sucker rods to be sprayed, which were placed synchronously in S4, will be transferred to the spraying operation area and sprayed. At this time, the sucker rod that has just been moved out of the spraying operation area will be dried by hot air under the action of the hot air blower 304.

[0046] S6. In the above steps, the fork 207 alternately places the sucker rods and alternately transfers and conveys them to the spraying operation area, thereby realizing that while one set of sucker rods is being sprayed, another set of sucker rods is being dried. During the spraying operation of one set of sucker rods, it is only necessary to replace the other set of dried sucker rods with the sucker rods to be sprayed to achieve uninterrupted continuous spraying operation.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant liquid spraying device for sucker rod production, comprising a rolling assembly (1), an alternating feeding assembly (2), and a spraying treatment assembly (3), characterized in that: The alternating feeding assembly (2) and the spraying treatment assembly (3) are both located on top of the rolling assembly (1). The rolling assembly (1) is used to roll the sucker rod so that it can be uniformly sprayed with anti-corrosion liquid. The alternating feeding assembly (2) is used to alternately feed materials to the working part of the alternating feeding assembly (2). The spraying treatment assembly (3) is used to spray anti-corrosion liquid onto the sucker rod that is rolling in the alternating feeding assembly (2) and to dry the sucker rod after spraying. The rolling assembly (1) includes a base (101). First grooves (103) are provided on both sides of the top of the base (101). Multiple movable columns (109) are slidably connected inside each of the first grooves (103). Drive rollers (110) are rotatably connected to the upper outer sides of each movable column (109). Multiple fixed columns (105) are installed on the top of the base (101) close to the outer openings of the first grooves (103) on both sides. Driven rollers (106) are rotatably connected to the upper inner sides of each fixed column (105). A transfer case housing (111) is installed on one side of the top of the base (101) and correspondingly on the outer side of each of the fixed columns (105) on that side. The middle of each transfer case housing (111) is rotatably connected. A main shaft (112) is connected, and adjacent main shafts (112) are connected by a coupling. A drive bevel gear is installed in the middle of each main shaft (112). A side shaft (113) is rotatably connected to the inner side of each transfer case housing (111). A driven bevel gear is installed at one end of each side shaft (113). The driven bevel gear is meshed with the corresponding drive bevel gear. The other end of the side shaft (113) is fixedly connected to the rotating shaft of each adjacent driven roller (106). A second servo motor (114) is installed at the top of the base (101) on the side of one end of the transfer case housing (111). The drive end of the second servo motor (114) is connected to one end of the main shaft (112) inside the transfer case housing (111) through a coupling. The alternating feeding assembly (2) includes two second slide grooves (201) respectively opened at the front and rear ends of the top of the base (101). A slider (204) is slidably connected to one end and the middle of the inner side of each second slide groove (201). A lifting frame (206) is provided at one end and the middle of the upper side of the base (101). Hydraulic rods (205) are installed at the four bottom corners of the lifting frame (206). The bottom ends of the hydraulic rods (205) are respectively installed on the top of the sliders (204). Multiple pairs of forks (207) are evenly installed on the top of the lifting frame (206) from front to back. The middle of the second slide (201) is rotatably connected to a second screw (203). The outer side of the second screw (203) is threadedly connected to the lower inside of the slider (204). One end of the second screw (203) passes through the side of the base (101) and is connected to a third servo motor (208). The outer shell of the third servo motor (208) is respectively installed on the side of the base (101).

2. The anti-corrosion spraying device for sucker rod production according to claim 1, characterized in that: The first slide groove (103) is rotatably connected to the middle of the interior of each of the first slide grooves (103). The external threads of the first screw (107) are connected to the lower interior of the movable column (109). The top of the base (101) is provided with an installation chamber (104) at one end of the first slide groove (103) on both sides. The installation chamber (104) is equipped with a first servo motor (108). The drive ends of the first servo motors (108) on both sides are fixedly connected to one end of the corresponding first screw (107).

3. The anti-corrosion liquid spraying device for sucker rod production according to claim 2, characterized in that: The base (101) has a first recycling trough (102) in the middle of its top.

4. The anti-corrosion liquid spraying device for sucker rod production according to claim 3, characterized in that: The base (101) has a second recycling trough (202) on both sides of its top.

5. The anti-corrosion liquid spraying device for sucker rod production according to claim 4, characterized in that: A top frame (301) is installed above the base (101), and a pump (303) is installed on the top of the top frame (301). The inlet of the pump (303) is connected to the anti-corrosion liquid storage container through a pipe. A pipe (302) is installed in the middle of the bottom of the top frame (301), and the pipe (302) is connected to the outlet of the pump (303). The bottom of the pipe (302) is connected and has multiple nozzles installed.

6. The anti-corrosion liquid spraying device for sucker rod production according to claim 5, characterized in that: Multiple hot air blowers (304) are installed on both sides of the bottom of the top frame (301).

7. A method for spraying an anti-corrosion liquid for sucker rod production, which is applied in the anti-corrosion liquid spraying device for sucker rod production as described in claim 6, characterized in that: Includes the following steps: S1. Place multiple sucker rods in the forks (207) at the top of the outer lifting frame (206) in sequence, with each pair of forks (207) supporting one rod. The third servo motor (208) moves synchronously, thereby driving the second screw (203) to rotate. The slider (204) moves synchronously under the limiting and guiding action of the second slide groove (201), and the lifting frame (206) is raised by the extension of the hydraulic rod (205) to pass over the fixed column (105), the driven roller (106), the moving column (109), and the drive roller (110). S2. When the lifting frame (206) supporting the sucker rods moves above the first recovery tank (102), the hydraulic rods (205) retract synchronously, so that each sucker rod can be supported by the driven roller (106) and the adjacent drive roller (110), and adhere tightly to the upper surface of the two under the action of gravity. S3. The second servo motor (114) operates, thereby driving each main shaft (112) to rotate. Under the transmission action of the drive bevel gear and the driven bevel gear, each side shaft (113) rotates, thereby causing each connected driven roller (106) to rotate. Due to friction, each sucker rod rotates. At this time, the pump (303) works to spray the anti-corrosion liquid downward through the pipe (302) and nozzle, so that the surface of the rotating sucker rod is evenly coated with anti-corrosion liquid. S4. When the fork (207) with the sucker rod already placed is performing a spraying operation, another empty fork (207) that has been moved to the outside will simultaneously place another set of sucker rods to be sprayed. S5. After the spraying is completed, the alternating feeding component (2) moves in the opposite direction. Similarly, the oil sucker that has been sprayed can be moved out of the spraying operation area. The other set of oil suckers to be sprayed in S4 will be transferred to the spraying operation area and sprayed. At this time, the oil sucker that has just been moved out of the spraying operation area will be dried by hot air under the action of the hot air blower (304). S6. In the above steps, the fork (207) alternately places the sucker rods and alternately transfers and conveys them to the spraying operation area, thereby realizing that while one set of sucker rods is performing the spraying operation, another set of sucker rods is performing the drying operation. During the spraying operation of one set of sucker rods, it is only necessary to replace the other set of dried sucker rods with the sucker rods to be sprayed to achieve uninterrupted continuous spraying operation.

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