A polishing device for sucker rod body and a using method thereof

Abstract

This invention relates to a sucker rod grinding device and its method of use, comprising: an operating table: a table surface is provided on the upper surface of the operating table, an inner groove is provided inside the table surface, and clamping mechanisms are symmetrically placed on both sides of the inner groove; a clamping mechanism: a horizontal plate is provided at the bottom of the clamping mechanism, the horizontal plate is movably engaged with the inner groove, a vertical plate is vertically fixed above the horizontal plate, and a clamping chuck is rotatably provided on the side of the vertical plate near the center of the table surface, the clamping chuck is used to clamp and position the sucker rod; a displacement mechanism: the displacement mechanism is provided on the side of the operating table, a horizontal moving component is provided at the bottom of the displacement mechanism, a vertical moving component is provided on the upper side of the horizontal moving component, a translational component is provided on the rear side of the vertical moving component, and a grinding component is provided below the translational component; this device has the advantages of strong adaptability, high degree of automation, and high grinding accuracy.

Description

Technical Field

[0001] This invention belongs to the field of petroleum equipment technology, specifically relating to a sucker rod grinding device and its usage method. Background Technology

[0002] Sucker rods are key components in oil extraction, connecting the pumping unit and the oil pump. Working in the complex downhole environment for extended periods, they are prone to surface defects such as rust, scratches, and wear, affecting sealing performance and service life. Therefore, regular repair and polishing are necessary. Manual polishing is inefficient, labor-intensive, and the polishing quality is greatly affected by the operator's skill, resulting in uneven surface finish.

[0003] Chinese patent application CN202311690863.1 discloses a carbon fiber continuous sucker rod with communication and anti-wax functions and its preparation device, including a worktable. A movable component is arranged above the worktable. A fixed frame is connected to one side of the movable component, and a movable frame is movably connected to the other side of the movable component. A rotating component is arranged on the side of the fixed frame away from the movable frame. The above device has poor adaptability and cannot meet the grinding requirements of sucker rods of different diameters. Furthermore, the pressure cannot be precisely controlled during grinding, easily leading to over-grinding or incomplete grinding of the rod surface. It also uses a single grinding wheel and lacks multi-station continuous grinding functionality, affecting repair efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a sucker rod grinding device and method of use to solve the problems mentioned in the background art.

[0005] The objective of this invention is achieved as follows: a sucker rod body grinding device, comprising: Operating table: The upper surface of the operating table is provided with a table surface, the inside of the table surface is provided with an inner groove, and clamping mechanisms are symmetrically placed on both sides of the inner groove; Clamping mechanism: A horizontal plate is provided at the bottom of the clamping mechanism. The horizontal plate is movably engaged with the inner groove. A vertical plate is fixed above the horizontal plate. A clamping chuck is rotatably provided on the side of the vertical plate near the middle of the table. The clamping chuck is used to clamp and position the sucker rod. Displacement mechanism: The displacement mechanism is located on the side of the operating table. A horizontal moving component is located at the bottom of the displacement mechanism. A vertical moving component is located above the horizontal moving component. A translation component is located behind the vertical moving component. A grinding component is located below the translation component. The horizontal moving component, the vertical moving component, and the translation component drive the grinding component to move horizontally, vertically, and horizontally, respectively. The grinding component is used to grind the sucker rod body.

[0006] The operating platform has a collection trough inside, a fan is fixedly installed on the right side of the collection trough, and a discharge port is provided on the front side of the collection trough. The collection trough has a "V" shape when viewed from the side, and the discharge port is located at the bottom of the collection trough.

[0007] The inner groove is rotatably connected to an adjusting screw via a bearing in the middle, and the horizontal plate is provided with an adjusting screw hole in the middle, with the adjusting screw threaded through and screwed into the adjusting screw hole.

[0008] The two horizontal plates have internal adjusting screw holes with opposite thread directions. A spring cover tube is sleeved on the outside of the adjusting screw, and the end of the spring cover tube is fixedly connected to the horizontal plate.

[0009] The inner groove is provided with a side groove, and a limit groove is provided on the upper side of the side groove. Limit strips are provided on both sides of the horizontal plate near the side groove. The limit strips cooperate with the limit grooves, and rollers are provided at the bottom of the limit strips.

[0010] The horizontal movement component includes a horizontal platform, the vertical movement component includes a vertical rod, and the translation component includes a horizontal rod. A displacement system is provided between the horizontal platform and the horizontal movement component, between the vertical rod and the translation component, and between the horizontal rod and the grinding component. The displacement system can be a hydraulic drive system or a screw drive system, both of which are existing technologies and will not be described in detail here.

[0011] The polishing assembly includes a handle and symmetrically arranged side plates. Each side plate has a slot at its upper end, into which the handle is inserted. A spring is installed between the slot and the handle. A grinding wheel assembly is positioned between the two side plates. The grinding wheel assembly is driven by a motor and includes a coarse grinding wheel, a fine grinding wheel, and a polishing wheel arranged sequentially. A protective cover is installed on the outer side of the grinding wheel assembly. The coarse grinding wheel can be made of diamond abrasive, the fine grinding wheel can be made of cubic boron nitride, and the polishing wheel can be made of wool wheel with polishing compound.

[0012] The clamping chuck has symmetrically arranged movable jaws inside. Arc-shaped plates are located at the ends of the jaws that are close to each other, and pads are provided on the inner side of the arc-shaped plates. A turntable is fixedly mounted on the side of the clamping chuck near the vertical plate. A circular catch is rotatably mounted at the corner of the vertical plate, and the circular catch cooperates with the turntable to limit its movement. Angle lines are provided on the outer side of the turntable, and an indicator needle is fixedly mounted on the outer side of the vertical plate. The arc-shaped plates and jaws can be bolted together, facilitating the replacement of suitable arc-shaped plates when clamping different types of sucker rods.

[0013] A steering assembly is provided on the side of the vertical plate away from the clamping chuck. The steering assembly includes symmetrical positioning plates, both of which are fixed to the vertical plate. A worm shaft is rotatably mounted inside the two positioning plates. A steering motor is fixedly mounted on the upper side of the horizontal plate. The output end of the steering motor meshes with the end of the worm shaft through a pair of gears. A worm wheel is fixedly mounted at the center of the turntable. The worm wheel meshes with the worm shaft. A turbine housing is provided on the outer side of the worm wheel.

[0014] A method of using a sucker rod grinding device includes the following steps: Step 1: Before use, check the status of the device and confirm that the operating table, clamping mechanism, displacement mechanism, grinding components, collection tank, fan and other parts are not loose or damaged, all moving parts are adequately lubricated, and the protective cover is firmly installed. According to the diameter of the sucker rod to be ground, select the arc-shaped piece with the corresponding curvature and install it to the end of the jaw of the clamping chuck. Step 2: Adjust the clamping distance. Rotate the adjusting screw and adjust the distance between the clamping mechanisms on both sides to the appropriate position according to the length of the sucker rod. Place the sucker rod horizontally between the clamping chucks on both sides, aligning the rod axis with the center of the clamping chuck. Operate the clamping chuck to make the jaws retract synchronously until the rod is firmly clamped. Step 3: Determine the grinding process based on the degree of rust and wear on the sucker rod surface. Ensure that the coarse grinding wheel, fine grinding wheel, and polishing wheel in the grinding wheel assembly are installed in place without any looseness. Set the motion parameters of the horizontal, vertical, and horizontal components through the control unit of the displacement mechanism. After setting, start the grinding wheel assembly drive motor, and then start the displacement mechanism. The horizontal, vertical, and horizontal components drive the grinding components to move according to the preset parameters. The grinding wheels contact the sucker rod surface to perform the grinding operation. Step 4: After the entire grinding process is completed, first turn off the grinding wheel drive motor, then stop the steering motor and displacement mechanism, and finally turn off the fan. Reset the clamping mechanism and displacement mechanism to their initial positions, turn off the main power, open the discharge port on the front side of the collection tank, clean the dust collected in the tank, and clean the surface of the equipment.

[0015] The beneficial effects of this invention are: The collection tank inside the control panel and the fan form a dust collection system. Dust generated during the grinding process can be guided by the protective cover and sucked into the collection tank by the fan for centralized collection, effectively preventing dust from spreading and polluting the environment and harming the health of operators. The collected dust can also be easily cleaned through the discharge port. The structure of each component of the device is simple, the moving parts are easy to lubricate and maintain, and the protective structure of key components such as the adjusting screw and clamping chuck is perfect, reducing the equipment failure rate and maintenance costs.

[0016] The clamping mechanism adopts a symmetrical design. Through the cooperation of the adjusting screw and the reverse thread adjusting screw hole, the distance between the clamping chucks on both sides can be quickly and accurately adjusted to accommodate sucker rods of different lengths. Combined with the guiding effect of the limit strip and the limit groove, and the drag reduction effect of the roller, the clamping adjustment is stable and smooth. The spring cover tube can also protect the adjusting screw and extend the service life of the components.

[0017] The arc-shaped piece at the end of the chuck cooperates with the inner liner to fit the outer contour of sucker rods of different diameters, ensuring coaxial clamping, and preventing the rod surface from being damaged. The steering assembly drives the clamping chuck and sucker rod to rotate at a uniform speed through the meshing transmission of the worm shaft and worm wheel. Combined with the limiting effect of the round chuck and the turntable, it ensures that the rod does not shift or wobble during the grinding process, providing a guarantee for uniform grinding.

[0018] The displacement mechanism integrates horizontal, vertical, and translational components, enabling the grinding assembly to move flexibly in three-dimensional space. This allows for comprehensive coverage of the grinding area on the sucker rod, adapting to different grinding angles and paths. The grinding wheel assembly integrates coarse, fine, and polishing wheels, allowing for continuous multi-stage grinding based on the rod's surface condition, eliminating the need for frequent tool changes and significantly improving grinding efficiency. Furthermore, the grinding assembly, through the insertion and engagement of the handle and slot, along with the elasticity of the spring, ensures appropriate pressure on the sucker rod, further optimizing the workflow.

[0019] The protective cover on the outside of the grinding wheel assembly can effectively block grinding debris from flying and prevent operators from being scratched by the high-speed rotating grinding wheel or debris; the turbine housing of the steering assembly can protect the meshing structure of the worm gear and worm shaft and prevent foreign objects from being drawn in and affecting the transmission stability. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of a sucker rod grinding device according to the present invention.

[0021] Figure 2 This is a structural diagram showing the connection between the adjusting screw and the adjusting screw hole in a sucker rod grinding device according to the present invention.

[0022] Figure 3 This is a structural diagram showing the connection between the limiting groove and the limiting strip of a sucker rod grinding device according to the present invention.

[0023] Figure 4 This is a structural diagram of the displacement mechanism of a sucker rod grinding device according to the present invention.

[0024] Figure 5 This is a structural diagram of the grinding component of a sucker rod grinding device according to the present invention.

[0025] Figure 6 This is a structural diagram of the grinding wheel assembly of a sucker rod grinding device according to the present invention.

[0026] Figure 7 This is a structural diagram of the clamping chuck of a sucker rod grinding device according to the present invention.

[0027] Figure 8 This is a structural diagram of the steering assembly of a sucker rod grinding device according to the present invention.

[0028] Figure 9 This is a side view of the arc-shaped plate of a sucker rod grinding device according to the present invention.

[0029] Figure 10 This is a side view of the steering assembly of a sucker rod grinding device according to the present invention.

[0030] In the diagram: 1. Operating table; 101. Tabletop; 1011. Inner groove; 1012. Side groove; 1013. Limiting groove; 102. Collection groove; 1021. Fan; 1022. Discharge port; 103. Adjusting screw; 104. Spring cover tube; 2. Clamping mechanism; 201. Horizontal plate; 2011. Adjusting screw hole; 2012. Limiting strip; 2013. Roller; 202. Vertical plate; 203. Clamping chuck; 2031. Claw; 2032. Arc-shaped piece; 2033. Pad; 2034. Turntable; 2035. Round clamp; 204. Steering assembly; 2041. Positioning 1. Plate; 2042. Worm shaft; 2043. Steering motor; 2044. Gear pair; 2045. Worm wheel; 2046. Worm wheel housing; 3. Displacement mechanism; 301. Horizontal movement assembly; 3011. Horizontal platform; 302. Vertical movement assembly; 3021. Vertical rod; 303. Translation assembly; 3031. Horizontal rod; 304. Grinding assembly; 3041. Handle; 3042. Side plate; 3043. Grinding wheel set; 3044. Protective cover; 3045. Coarse grinding wheel; 3046. Fine grinding wheel; 3047. Polishing wheel; 3048. Slot; 3049. Spring; 305. Displacement system. Detailed Implementation

[0031] The present invention will now be further described with reference to the accompanying drawings.

[0032] Example 1 like Figure 1-3 As shown, a sucker rod grinding device includes: Operating table 1: The upper surface of the operating table 1 is provided with a table surface 101, and the inside of the table surface 101 is provided with an inner groove 1011. Clamping mechanisms 2 are symmetrically placed on both sides of the inner groove 1011. Clamping mechanism 2: A horizontal plate 201 is provided at the bottom of the clamping mechanism 2. The horizontal plate 201 is movably engaged with the inner groove 1011. A vertical plate 202 is vertically fixed above the horizontal plate 201. A clamping chuck 203 is rotatably provided on the side of the vertical plate 202 near the middle of the table 101. The clamping chuck 203 is used to clamp and position the sucker rod. Displacement mechanism 3: The displacement mechanism 3 is disposed on the side of the operating table 1. A horizontal moving component 301 is disposed at the bottom of the displacement mechanism 3. A vertical moving component 302 is disposed on the upper side of the horizontal moving component 301. A translation component 303 is disposed on the rear side of the vertical moving component 302. A grinding component 304 is disposed below the translation component 303. The horizontal moving component 301, the vertical moving component 302, and the translation component 303 respectively drive the grinding component 304 to move horizontally, vertically, and horizontally. The grinding component 304 is used to grind the sucker rod body.

[0033] The operating table 1 is equipped with a collection tank 102 inside. A fan 1021 is fixedly installed on the right side of the collection tank 102, and a discharge port 1022 is provided on the front side of the collection tank 102. The operating table 1 integrates the collection tank 102 and the fan 1021 to actively absorb the dust and debris generated during grinding, and clean them up through the discharge port 1022, thereby improving the working environment and meeting environmental protection requirements.

[0034] The inner groove 1011 is rotatably connected to the adjusting screw 103 via a bearing in the middle, and the horizontal plate 201 is provided with an adjusting screw hole 2011 in the middle, with the adjusting screw 103 threaded through and screwed into the adjusting screw hole 2011.

[0035] The two horizontal plates 201 have internal adjusting screw holes 2011 with opposite thread directions. A spring cover tube 104 is sleeved on the outside of the adjusting screw 103, and the end of the spring cover tube 104 is fixedly connected to the horizontal plate 201. The spring cover tube 104 has telescopic properties, protecting the adjusting screw 103 and ensuring synchronous adjustment stability.

[0036] The inner groove 1011 has a side groove 1012 on its side, and a limiting groove 1013 is provided on the upper side of the side groove 1012. Limiting strips 2012 are provided on both sides of the horizontal plate 201 near the side groove 1012. The limiting strips 2012 cooperate with the limiting grooves 1013, and rollers 2013 are provided at the bottom of the limiting strips 2012. The horizontal plate 201, through the cooperation of the rollers 2013 and the limiting grooves 1013, moves easily and prevents deviation.

[0037] In use, the distance between the clamping mechanisms 2 is first adjusted by rotating the adjusting screw 103. Since the threads of the adjusting screw holes 2011 on both sides of the horizontal plates 201 are opposite, the horizontal plates 201 will move synchronously closer to or further away from each other along the inner groove 1011. During adjustment, the limiting strips 2012 on both sides of the horizontal plates 201 slide along the limiting grooves 1013, and the bottom rollers 2013 reduce movement resistance, making the adjustment process smooth and stable. The spring cover tube 104 extends and retracts synchronously with the movement of the horizontal plates 201, providing protection against dust and debris entanglement for the adjusting screw 103. The adjustment continues until the distance between the clamping chucks 203 on both sides matches the length of the sucker rod to be ground, at which point the adjusting screw 2011 is stopped. The sucker rod to be ground is then horizontally lifted and placed between the clamping chucks 203 on both sides, ensuring that both ends of the rod are aligned with the clamping chucks 203, and that the rod axis is coaxial with the center of the clamping chucks 203, and that the grinding area of ​​the rod is unobstructed and free from bending or deformation.

[0038] The grinding process is determined by setting the motion parameters of the horizontal moving component 301, vertical moving component 302, and horizontal moving component 303 through the control unit of the displacement mechanism 3. After the setting is completed, the displacement mechanism 3 is started. The horizontal moving component 301, vertical moving component 302, and horizontal moving component 303 drive the grinding component 304 to move according to the preset parameters. The grinding wheels contact the surface of the sucker rod to perform the grinding operation.

[0039] Example 2 like Figure 1-6 As shown, a sucker rod grinding device includes: Operating table 1: The upper surface of the operating table 1 is provided with a table surface 101, and the inside of the table surface 101 is provided with an inner groove 1011. Clamping mechanisms 2 are symmetrically placed on both sides of the inner groove 1011. Clamping mechanism 2: A horizontal plate 201 is provided at the bottom of the clamping mechanism 2. The horizontal plate 201 is movably engaged with the inner groove 1011. A vertical plate 202 is vertically fixed above the horizontal plate 201. A clamping chuck 203 is rotatably provided on the side of the vertical plate 202 near the middle of the table 101. The clamping chuck 203 is used to clamp and position the sucker rod. Displacement mechanism 3: The displacement mechanism 3 is disposed on the side of the operating table 1. A horizontal moving component 301 is disposed at the bottom of the displacement mechanism 3. A vertical moving component 302 is disposed on the upper side of the horizontal moving component 301. A translation component 303 is disposed on the rear side of the vertical moving component 302. A grinding component 304 is disposed below the translation component 303. The horizontal moving component 301, the vertical moving component 302, and the translation component 303 respectively drive the grinding component 304 to move horizontally, vertically, and horizontally. The grinding component 304 is used to grind the sucker rod body.

[0040] The operating table 1 is equipped with a collection tank 102 inside. A fan 1021 is fixedly installed on the right side of the collection tank 102, and a discharge port 1022 is provided on the front side of the collection tank 102. The operating table 1 integrates the collection tank 102 and the fan 1021 to actively absorb the dust and debris generated during grinding, and clean them up through the discharge port 1022, thereby improving the working environment and meeting environmental protection requirements.

[0041] The inner groove 1011 is rotatably connected to the adjusting screw 103 via a bearing in the middle, and the horizontal plate 201 is provided with an adjusting screw hole 2011 in the middle, with the adjusting screw 103 threaded through and screwed into the adjusting screw hole 2011.

[0042] The two horizontal plates 201 have internal adjusting screw holes 2011 with opposite thread directions. A spring cover tube 104 is sleeved on the outside of the adjusting screw 103, and the end of the spring cover tube 104 is fixedly connected to the horizontal plate 201. The spring cover tube 104 has telescopic properties, protecting the adjusting screw 103 and ensuring synchronous adjustment stability.

[0043] The inner groove 1011 has a side groove 1012 on its side, and a limiting groove 1013 is provided on the upper side of the side groove 1012. Limiting strips 2012 are provided on both sides of the horizontal plate 201 near the side groove 1012. The limiting strips 2012 cooperate with the limiting grooves 1013, and rollers 2013 are provided at the bottom of the limiting strips 2012. The horizontal plate 201, through the cooperation of the rollers 2013 and the limiting grooves 1013, moves easily and prevents deviation.

[0044] The horizontal moving component 301 includes a horizontal platform 3011, the vertical moving component 302 includes a vertical rod 3021, and the translational component 303 includes a horizontal rod 3031. A shifting system is provided between the horizontal platform 3011 and the horizontal moving component 301, between the vertical rod 3021 and the translational component 303, and between the horizontal rod 3031 and the grinding component 304.

[0045] The grinding assembly 304 includes a handle 3041 and symmetrically arranged side plates 3042. A slot 3048 is provided at the upper end of each side plate 3042, and the handle 3041 is inserted into the slot 3048. A spring 3049 is provided between the slot 3048 and the handle 3041. A grinding wheel assembly 3043 is arranged between the two side plates 3042. The grinding wheel assembly 3043 is driven by a motor and includes a coarse grinding wheel 3045, a fine grinding wheel 3046, and a polishing wheel 3047 arranged sequentially. A protective cover 3044 is provided on the outer side of the grinding wheel assembly 3043. The grinding wheel assembly 3043 integrates coarse grinding, fine grinding, and polishing wheels, enabling the entire process from rust and blemish removal to surface polishing to be completed in one operation, significantly improving work efficiency and surface quality consistency.

[0046] In another embodiment, the displacement mechanism 3 and the grinding assembly 304 are preferably used as follows: First, the grinding wheel drive motor is started, causing the grinding wheel assembly 3043 to rotate at a preset speed. After the grinding wheel speed stabilizes, the displacement mechanism 3 is started, and the horizontal movement assembly 301, vertical movement assembly 302, and translational movement assembly 303 move in coordination according to preset parameters, driving the grinding assembly 304 to move horizontally, vertically, and horizontally. Within a specific grinding area, the coarse grinding wheel 3045 first contacts the surface of the sucker rod to begin coarse grinding, removing defects such as rust and large scratches from the rod surface. After the coarse grinding is completed, the position of the grinding assembly 304 is adjusted by the displacement mechanism 3, switching to the fine grinding wheel 3046, and the above movement path is repeated to perform fine grinding on the rod surface, improving surface smoothness. After fine grinding is completed, the position is switched to the polishing wheel 3047 again for surface brightening treatment until the rod surface reaches the preset smoothness requirement. During the grinding process, the protective cover 3044 blocks flying debris, and the fan works continuously to draw the grinding dust into the collection tank 102 for centralized collection. Open the discharge port 1022 on the front side of the collection tank 102 to clean the dust collected in the tank.

[0047] Example 3 like Figure 1-10 As shown, a sucker rod grinding device includes: Operating table 1: The upper surface of the operating table 1 is provided with a table surface 101, and the inside of the table surface 101 is provided with an inner groove 1011. Clamping mechanisms 2 are symmetrically placed on both sides of the inner groove 1011. Clamping mechanism 2: A horizontal plate 201 is provided at the bottom of the clamping mechanism 2. The horizontal plate 201 is movably engaged with the inner groove 1011. A vertical plate 202 is vertically fixed above the horizontal plate 201. A clamping chuck 203 is rotatably provided on the side of the vertical plate 202 near the middle of the table 101. The clamping chuck 203 is used to clamp and position the sucker rod. Displacement mechanism 3: The displacement mechanism 3 is disposed on the side of the operating table 1. A horizontal moving component 301 is disposed at the bottom of the displacement mechanism 3. A vertical moving component 302 is disposed on the upper side of the horizontal moving component 301. A translation component 303 is disposed on the rear side of the vertical moving component 302. A grinding component 304 is disposed below the translation component 303. The horizontal moving component 301, the vertical moving component 302, and the translation component 303 respectively drive the grinding component 304 to move horizontally, vertically, and horizontally. The grinding component 304 is used to grind the sucker rod body.

[0048] The operating table 1 is equipped with a collection tank 102 inside. A fan 1021 is fixedly installed on the right side of the collection tank 102, and a discharge port 1022 is provided on the front side of the collection tank 102. The operating table 1 integrates the collection tank 102 and the fan 1021 to actively absorb the dust and debris generated during grinding, and clean them up through the discharge port 1022, thereby improving the working environment and meeting environmental protection requirements.

[0049] The inner groove 1011 is rotatably connected to the adjusting screw 103 via a bearing in the middle, and the horizontal plate 201 is provided with an adjusting screw hole 2011 in the middle, with the adjusting screw 103 threaded through and screwed into the adjusting screw hole 2011.

[0050] The two horizontal plates 201 have internal adjusting screw holes 2011 with opposite thread directions. A spring cover tube 104 is sleeved on the outside of the adjusting screw 103, and the end of the spring cover tube 104 is fixedly connected to the horizontal plate 201. The spring cover tube 104 has telescopic properties, protecting the adjusting screw 103 and ensuring synchronous adjustment stability.

[0051] The inner groove 1011 has a side groove 1012 on its side, and a limiting groove 1013 is provided on the upper side of the side groove 1012. Limiting strips 2012 are provided on both sides of the horizontal plate 201 near the side groove 1012. The limiting strips 2012 cooperate with the limiting grooves 1013, and rollers 2013 are provided at the bottom of the limiting strips 2012. The horizontal plate 201, through the cooperation of the rollers 2013 and the limiting grooves 1013, moves easily and prevents deviation.

[0052] The horizontal moving component 301 includes a horizontal platform 3011, the vertical moving component 302 includes a vertical rod 3021, and the translational component 303 includes a horizontal rod 3031. A shifting system is provided between the horizontal platform 3011 and the horizontal moving component 301, between the vertical rod 3021 and the translational component 303, and between the horizontal rod 3031 and the grinding component 304.

[0053] The grinding assembly 304 includes a handle 3041 and symmetrically arranged side plates 3042. A slot 3048 is provided at the upper end of each side plate 3042, and the handle 3041 is inserted into the slot 3048. A spring 3049 is provided between the slot 3048 and the handle 3041. A grinding wheel assembly 3043 is arranged between the two side plates 3042. The grinding wheel assembly 3043 is driven by a motor and includes a coarse grinding wheel 3045, a fine grinding wheel 3046, and a polishing wheel 3047 arranged sequentially. A protective cover 3044 is provided on the outer side of the grinding wheel assembly 3043. The grinding wheel assembly 3043 integrates coarse grinding, fine grinding, and polishing wheels, enabling the entire process from rust and blemish removal to surface polishing to be completed in one operation, significantly improving work efficiency and surface quality consistency.

[0054] The clamping chuck 203 has symmetrically movably arranged jaws 2031 inside. Arc-shaped pieces 2032 are provided at the close ends of the jaws 2031, and pads 2033 are provided on the inner side of the arc-shaped pieces 2032. A turntable 2034 is fixedly installed on the side of the clamping chuck 203 near the vertical plate 202. Circular clips 2035 are rotatably installed at the corners of the vertical plate 202. The circular clips 2035 cooperate with the turntable 2034 to limit its movement. The pads 2033 on the inner side of the jaws 2031 enhance friction and prevent damage to the rod surface.

[0055] A steering assembly 204 is provided on the side of the vertical plate 202 away from the clamping chuck 203. The steering assembly 204 includes symmetrical positioning plates 2041, both of which are fixed to the vertical plate 202. A worm shaft 2042 is rotatably mounted inside the two positioning plates 2041. A steering motor 2043 is fixedly mounted on the upper side of the horizontal plate 201. The output end of the steering motor 2043 meshes with the end of the worm shaft 2042 through a gear 2044. A worm wheel 2045 is fixedly mounted at the center of the turntable 2034. The worm wheel 2045 meshes with the worm shaft 2042. A turbine housing 2046 is provided on the outer side of the worm wheel 2045.

[0056] A method of using a sucker rod grinding device includes the following steps: Step 1: Before use, check the status of the device and confirm that the operating table 1, clamping mechanism 2, displacement mechanism 3, grinding component 304, collection tank 102, fan 1021 and other components are not loose or damaged, all moving parts are adequately lubricated, and the protective cover is firmly installed. According to the diameter of the sucker rod to be ground, select the arc-shaped piece 2032 with the corresponding curvature and install it to the end of the jaw 2031 of the clamping chuck 203. Step 2: Adjust the clamping distance. Rotate the adjusting screw 103 and adjust the distance between the two clamping mechanisms 2 to the appropriate position according to the length of the sucker rod. Place the sucker rod horizontally between the two clamping chucks 203, so that the rod axis is aligned with the center of the clamping chuck 203. Operate the clamping chuck 203 to make the jaws 2031 retract synchronously until the rod is firmly clamped. Step 3: Determine the grinding process based on the degree of rust and wear on the sucker rod surface. Ensure that the coarse grinding wheel 3045, fine grinding wheel 3046, and polishing wheel 3047 in the grinding wheel assembly 3043 are installed in place without any looseness. Set the motion parameters of the horizontal movement component 301, vertical movement component 302, and horizontal movement component 303 through the control unit of the displacement mechanism 3. After setting, start the grinding wheel assembly drive motor, and then start the displacement mechanism 3. The horizontal movement component 301, vertical movement component 302, and horizontal movement component 303 drive the grinding component 304 to move according to the preset parameters. The grinding wheels contact the sucker rod surface to perform the grinding operation. Step 4: After the entire grinding process is completed, first turn off the grinding wheel group drive motor, then stop the steering motor 2043 and the displacement mechanism 3, and finally turn off the fan 1021. Reset the clamping mechanism 2 and the displacement mechanism 3 to their initial positions, turn off the main power supply, open the discharge port 1022 on the front side of the collection tank 102, clean the dust collected in the tank, and clean the surface of the equipment.

[0057] In another embodiment, the clamping chuck 203 structure is preferably used such that the driving structure of the clamping chuck 203 is operated to cause the jaws 2031 to retract synchronously toward the center until the arc-shaped piece 2032 and the pad 2033 are tightly attached to the surface of the sucker rod, thereby achieving stable clamping of the rod and ensuring no displacement or shaking during the grinding process.

[0058] When the sucker rod needs to be rotated for grinding other areas, the steering motor 2043 is activated. The output of the steering motor 2043 drives the worm shaft 2042 to rotate via the gear 2044. The worm shaft 2042 meshes with the worm wheel 2045 at the center of the turntable 2034, thereby driving the clamping chuck 203 and the sucker rod to rotate at a uniform speed, maintaining the rotation speed consistent with preset parameters to ensure uniform grinding around the entire circumference. The turbine housing 2046 protects the meshing structure of the worm wheel 2045 and the worm shaft 2042, preventing foreign objects from being drawn in and affecting transmission accuracy. The round clips 2035 at the corners of the vertical plate 202 limit the turntable 2034, further enhancing clamping stability and preventing the chuck from shifting when the rod rotates. After the entire grinding process is completed, first turn off the grinding wheel assembly drive motor. Once the grinding wheel assembly 3043 has completely stopped rotating, turn off the steering motor 2043 and the displacement mechanism 3, and finally turn off the blower 1021. Operate the clamping chuck 203 to open the jaws 2031 and smoothly remove the ground sucker rod. Reset the clamping mechanism 2, displacement mechanism 3, and grinding assembly 304 to their initial positions and turn off the main power.

Claims

1. A device for grinding sucker rods, characterized in that: include: Operating table: The upper surface of the operating table is provided with a table surface, the inside of the table surface is provided with an inner groove, and clamping mechanisms are symmetrically placed on both sides of the inner groove; Clamping mechanism: A horizontal plate is provided at the bottom of the clamping mechanism. The horizontal plate is movably engaged with the inner groove. A vertical plate is fixed above the horizontal plate. A clamping chuck is rotatably provided on the side of the vertical plate near the middle of the table. The clamping chuck is used to clamp and position the sucker rod. Displacement mechanism: The displacement mechanism is located on the side of the operating table. A horizontal moving component is located at the bottom of the displacement mechanism. A vertical moving component is located above the horizontal moving component. A translation component is located behind the vertical moving component. A grinding component is located below the translation component. The horizontal moving component, the vertical moving component, and the translation component drive the grinding component to move horizontally, vertically, and horizontally, respectively. The grinding component is used to grind the sucker rod body.

2. The sucker rod grinding device as described in claim 1, characterized in that: The operating platform is equipped with a collection trough, a fan is fixedly installed on the right side of the collection trough, and a discharge port is provided on the front side of the collection trough.

3. The sucker rod grinding device as described in claim 1, characterized in that: The inner groove is rotatably connected to an adjusting screw via a bearing in the middle, and the horizontal plate is provided with an adjusting screw hole in the middle, with the adjusting screw threaded through and screwed into the adjusting screw hole.

4. The sucker rod grinding device as described in claim 3, characterized in that: The two horizontal plates have internal adjusting screw holes with opposite thread directions. A spring cover tube is sleeved on the outside of the adjusting screw, and the end of the spring cover tube is fixedly connected to the horizontal plate.

5. The sucker rod grinding device as described in claim 1, characterized in that: The inner groove is provided with a side groove, and a limit groove is provided on the upper side of the side groove. Limit strips are provided on both sides of the horizontal plate near the side groove. The limit strips cooperate with the limit grooves, and rollers are provided at the bottom of the limit strips.

6. The sucker rod grinding device as described in claim 1, characterized in that: The horizontal moving component includes a horizontal platform, the vertical moving component includes a vertical rod, and the translational component includes a horizontal rod. A displacement system is provided between the horizontal platform and the horizontal moving component, between the vertical rod and the translational component, and between the horizontal rod and the grinding component.

7. The sucker rod grinding device as described in claim 6, characterized in that: The polishing assembly includes a handle and symmetrically arranged side plates. The upper end of the side plates is provided with a slot, and the handle is inserted into the slot. A spring is provided between the slot and the handle. A grinding wheel assembly is provided between the two side plates. The grinding wheel assembly is driven by a motor. The grinding wheel assembly includes a coarse grinding wheel, a fine grinding wheel and a polishing wheel arranged in sequence. A protective cover is provided on the outside of the grinding wheel assembly.

8. The sucker rod grinding device as described in claim 1, characterized in that: The clamping chuck has symmetrically movable jaws inside, and arc-shaped pieces are provided at the ends of the jaws that are close to each other. A pad is provided on the inner side of the arc-shaped pieces. A turntable is fixedly provided on the side of the clamping chuck near the vertical plate. A round clip is rotatably provided at the corner of the vertical plate. The round clip and the turntable cooperate to limit the turntable.

9. The sucker rod grinding device as described in claim 8, characterized in that: A steering assembly is provided on the side of the vertical plate away from the clamping chuck. The steering assembly includes symmetrical positioning plates, both of which are fixed to the vertical plate. A worm shaft is rotatably mounted inside the two positioning plates. A steering motor is fixedly mounted on the upper side of the horizontal plate. The output end of the steering motor meshes with the end of the worm shaft through a pair of gears. A worm wheel is fixedly mounted at the center of the turntable. The worm wheel meshes with the worm shaft. A turbine housing is provided on the outer side of the worm wheel.

10. A method of using the sucker rod grinding device as described in any one of claims 1-9, characterized in that: It includes the following steps: Step 1: Before use, check the status of the device and confirm that the operating table, clamping mechanism, displacement mechanism, grinding components, collection tank, fan and other parts are not loose or damaged, all moving parts are adequately lubricated, and the protective cover is firmly installed. According to the diameter of the sucker rod to be ground, select the arc-shaped piece with the corresponding curvature and install it to the end of the jaw of the clamping chuck. Step 2: Adjust the clamping distance. Rotate the adjusting screw and adjust the distance between the clamping mechanisms on both sides to the appropriate position according to the length of the sucker rod. Place the sucker rod horizontally between the clamping chucks on both sides, aligning the rod axis with the center of the clamping chuck. Operate the clamping chuck to make the jaws retract synchronously until the rod is firmly clamped. Step 3: Determine the grinding process based on the degree of rust and wear on the sucker rod surface. Ensure that the coarse grinding wheel, fine grinding wheel, and polishing wheel in the grinding wheel assembly are installed in place without any looseness. Set the motion parameters of the horizontal, vertical, and horizontal components through the control unit of the displacement mechanism. After setting, start the grinding wheel assembly drive motor, and then start the displacement mechanism. The horizontal, vertical, and horizontal components drive the grinding components to move according to the preset parameters. The grinding wheels contact the sucker rod surface to perform the grinding operation. Step 4: After the entire grinding process is completed, first turn off the grinding wheel drive motor, then stop the steering motor and displacement mechanism, and finally turn off the fan. Reset the clamping mechanism and displacement mechanism to their initial positions, turn off the main power, open the discharge port on the front side of the collection tank, clean the dust collected in the tank, and clean the surface of the equipment.

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