Spinning device for iron roughneck

Abstract

The invention discloses an iron roughneck spinner, and relates to the technical field of iron roughneck spinner, the iron roughneck spinner comprises a spinner clamping oil cylinder, the top end of the spinner clamping oil cylinder is fixedly connected with a spinner synchronous diverter valve block, one end of the spinner clamping oil cylinder is fixedly connected with a spinner left support arm, and the other end of the spinner clamping oil cylinder is fixedly connected with a right support arm; a spinner base is fixedly connected between the spinner left supporting arm and the spinner right supporting arm through a pin shaft, and the front end of the spinner left supporting arm and the front end of the spinner right supporting arm are fixedly connected with a left roller assembly and a right roller assembly respectively. The spinner adopts a structure that four motors are connected in parallel, the four motors are synchronously driven in a synchronous shunting mode, the problem that rollers slip due to sinking of a tubular column and the like is solved, meanwhile, full-shaft rollers are adopted for driving, the compressive strength of the structure is enhanced, and the service life of the spinner is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of iron roughneck spinners, in particular to an iron roughneck spinner. Background Art

[0002] Iron roughneck is an automated screwing equipment with advantages of high working efficiency and good working stability. It is widely used in the drilling process of oil and gas fields. Iron roughneck is mainly used for connecting pipe strings in drilling or well repair operations, and the iron roughneck spinner plays the role of high-speed screwing, which is the key to improving the efficiency of unscrewing on the pipe string.

[0003] There are always some problems in the actual use of the iron roughneck spinner: 1. The diameter range of the pipe string is not large enough; 2. Some pipe strings are deformed (surface dents, etc.); 3. The spinner used to use 8 spinner motors, which had a complex structure and too many pipelines, a small range of use, and poor use effect. Therefore, the present invention proposes an iron roughneck spinner. Summary of the invention

[0004] The purpose of the present invention is to remedy the deficiencies of the prior art and provide an iron roughneck spinner.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: an iron roughneck spinner, comprising a spinner clamping cylinder, a top end of the spinner clamping cylinder is fixedly connected to a spinner synchronous diverter valve block, one end of the spinner clamping cylinder is fixedly connected to a left spinner arm, and the other end of the spinner clamping cylinder is fixedly connected to a right spinner arm, a spinner seat is fixedly connected between the left spinner arm and the right spinner arm through a pin shaft, the front ends of the left spinner arm and the right spinner arm are respectively fixedly connected to a left roller assembly and a right roller assembly, an outer wall of the spinner seat is fixedly connected to a connecting column, and both ends of the connecting column are fixedly connected to side connecting plates, an offset supporting mechanism and a movable cleaning mechanism are provided between a pair of the side connecting plates and the left roller assembly and the right roller assembly, an extrusion spraying mechanism is provided between the side connecting plate and the offset supporting mechanism, and a rotating vibration mechanism is provided between the side connecting plate and the movable cleaning mechanism.

[0006] As a preferred solution of the present invention, the left roller assembly is composed of a spinner motor, a left roller bracket, a roller, a bearing assembly, a full-axis roller shaft and a key. The left roller bracket is fixedly connected to the left support arm of the spinner through a pin shaft, and the top and bottom ends of the left roller bracket are both equipped with bearing assemblies. The left roller bracket is connected to the roller through the full-axis roller shaft and a key, and the bearing assembly at the top of the left roller bracket is inserted into the spinner motor.

[0007] As a preferred solution of the present invention, the spinner seat is hung on the spinner support frame of the iron roughneck, and the left support arm and left roller assembly of the spinner and the right support arm and right roller assembly form a scissor-shaped structure.

[0008] As a preferred solution of the present invention, the offset support mechanism includes a pair of fixed plates, and the pair of fixed plates are fixedly connected to the left roller assembly and the right roller assembly respectively; the ends of the pair of fixed plates that are far away from each other are rotatably connected to a pair of V-shaped connecting rods through two pairs of arc-shaped pieces; the ends of the pair of side connecting plates that are close to each other are fixedly connected to a pair of I-shaped rods; the outer walls of the two pairs of I-shaped rods are sleeved with movable blocks, and one end of the V-shaped connecting rod is rotatably connected to one end of the movable block through a pair of arc-shaped pieces; the outer walls of the two pairs of I-shaped rods are sleeved with a pair of first springs, and the two ends of the pair of first springs are respectively fixedly connected to the inner wall of the I-shaped rod and the two ends of the movable block.

[0009] As a preferred solution of the present invention, the offset support mechanism also includes two pairs of first rack plates fixedly connected to the top ends of the two pairs of movable blocks, respectively, the ends of a pair of side connecting plates away from each other are fixedly connected to an electric telescopic rod, and the ends of the electric telescopic rod away from the side connecting plates are fixedly connected to a movable straight plate, the ends of the movable straight plates close to the side connecting plates are fixedly connected to a pair of connecting round rods, the outer walls of the pair of side connecting plates are each provided with a pair of through holes, and the ends of the pair of connecting round rods away from the movable straight plates pass through the through holes and are fixedly connected to a second rack plate, and the second rack plate corresponds to the first rack plate.

[0010] As a preferred scheme of the present invention, the extrusion spraying mechanism includes a pair of storage frames, the bottom ends of the pair of storage frames are respectively fixedly connected to the top ends of a pair of side connecting plates, the ends of the pair of storage frames away from each other are fixedly connected to a liquid storage frame, and a plurality of evenly distributed sports spray bottle nozzles are embedded and connected between the liquid storage frame and the storage frame, the ends of the pair of movable straight plates close to each other are fixedly connected to a push-pull rod, and the end of the liquid storage frame close to the movable straight plate is drilled with a circular hole, the end of the push-pull rod away from the movable straight plate passes through the circular hole and is fixedly connected with a sealing extrusion plate, the outer wall of the push-pull rod is in close contact with the inner wall of the circular hole, the outer wall of the sealing extrusion plate is in close contact with the inner wall of the liquid storage frame, the top of the liquid storage frame is drilled with a liquid injection port, the top of the liquid injection port is provided with a sealing plug, and the outer wall of the sealing plug is in close contact with the inner wall of the liquid injection port, and the inner bottom ends of the pair of storage frames are fixedly connected with a collecting box.

[0011] As a preferred scheme of the present invention, the mobile cleaning mechanism includes two pairs of sliding rod cylinders, the two pairs of sliding rod cylinders are respectively fixedly connected to the outer walls of a pair of storage frames, and a connecting frame is fixedly connected between the output ends of a pair of sliding rod cylinders, the top of the connecting frame is fixedly connected to an L-shaped plate, and one end of the L-shaped plate is fixedly connected to a lifting cylinder, the bottom end of the lifting cylinder is fixedly connected to a motor, and the bottom end of the motor is fixedly connected to a rectangular plate, the bottom end of the rectangular plate is rotatably connected to a rotating rod, and the top end of the rotating rod is fixedly connected to the output end of the motor, the outer wall of the rotating rod is fixedly connected to a cleaning brush body, and the cleaning brush body is located in the storage frame.

[0012] As a preferred scheme of the present invention, the rotating vibration mechanism includes two pairs of connected rotating plates, and the two pairs of connected rotating plates are respectively fixedly connected to the outer walls of a pair of rotating rods, and the top ends of the two pairs of connected rotating plates are embedded with cylinders, and the inner walls of the cylinders are slidably connected with T-shaped circular convex rods, and the inner bottom end of the cylinder and one end of the T-shaped circular convex rod are fixedly connected with a second spring, and the inner top end of the cylinder is drilled with a through hole, and the other end of the T-shaped circular convex rod passes through the through hole and contacts with the bottom end of the rectangular plate, and the bottom end of the rectangular plate is fixedly connected with a plurality of evenly distributed semicircular convex blocks, and the T-shaped circular convex rod is located between the plurality of semicircular convex blocks.

[0013] Compared with the prior art, the iron roughneck spinner has the following beneficial effects:

[0014] 1. The iron roughneck spinner of the present invention adopts a staggered roller structure, which has a wider pipe string range. Without increasing the size of the entire spinner, the use range of the equipment is improved. In addition, a four-motor parallel structure is adopted, and a synchronous diverter valve block is added. The flow and pressure of each motor are equally distributed through several synchronous diverter valves of the valve block, so that four motors are driven synchronously, the flow and pressure are the same, and there is no pressure influence between the motors. In actual working conditions, deformations such as possible pipe string depression in the well site may easily cause one or more spinner rollers to slip, thereby reducing the pressure of all motors of the spinner, and the spinner will be very inefficient or unable to work normally. By improving the driving method of the spinner, this problem can be effectively solved.

[0015] Second, the iron roughneck spinner roller assembly of the present invention adopts full-axis roller drive, and its structure is that the axis roller shaft runs through the entire left roller bracket and the right roller bracket, and the axis roller shaft passes through two sets of bearing assemblies. The whole structure has stronger bending resistance and increases the service life of the spinner.

[0016] 3. The offset support mechanism provided in the present invention can provide support when the left roller assembly and the right roller assembly clamp the pipe column and perform high-speed tightening or loosening, so that the left roller assembly and the right roller assembly can perform stable screwing work with the pipe column, reduce the shaking effect during the screwing process, and effectively improve the screwing stability of the left roller assembly and the right roller assembly.

[0017] Fourth, the present invention can clean the left roller assembly and the right roller assembly in time after the work is completed by means of the extrusion spraying mechanism, the mobile cleaning mechanism and the rotating vibration mechanism, so as to remove the dirt attached to the surface of the left roller assembly and the right roller assembly during the screwing process, avoid the dirt staying on the surface and affecting the subsequent screwing work, ensure the working stability of the left roller assembly and the right roller assembly, and thus ensure the working stability of the iron roughneck spinner.

[0018] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the left roller assembly in the present invention;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of the left roller assembly in the present invention;

[0023] Figure 5 It is a schematic diagram of a partial cross-section structure of the offset supporting mechanism in the present invention;

[0024] Figure 6 It is a partial cross-sectional structural schematic diagram of the extrusion spraying mechanism in the present invention;

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the mobile cleaning mechanism in the present invention;

[0026] Figure 8 It is a schematic diagram of the partial cross-section structure of the rotary vibration mechanism of the present invention when viewed from an upward angle;

[0027] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure enlarged at point A in the middle.

[0028] In the figure: 1. Spinner clamping cylinder; 2. Spinner synchronous diverter valve block; 3. Spinner seat; 4. Spinner left arm; 5. Left roller assembly; 501. Spinner motor; 502. Left roller bracket; 503. Roller; 504. Bearing assembly; 505. Full-axis roller shaft; 506. Key; 6. Right roller assembly; 7. Right arm; 8. Connecting column; 9. Side connecting plate; 10. Offset support mechanism; 1001. Fixed plate; 1002. V-shaped connecting rod; 1003. I-shaped rod; 1004. Movable block; 1005. First spring; 1006. First rack plate; 1007. Electric telescopic rod; 1008. Movable straight plate; 1009. Connecting round rod; 1001 0. Second rack plate; 11. Extrusion spraying mechanism; 1101. Storage frame; 1102. Liquid storage frame; 1103. Sealing extrusion plate; 1104. Push-pull rod; 1105. Sports spray bottle mouth; 1106. Sealing plug; 1107. Collecting box; 12. Mobile cleaning mechanism; 1201. Sliding rod cylinder; 1202. Connecting frame; 1203. L-shaped plate; 1204. Lifting cylinder; 1205. Motor; 1206. Rectangular plate; 1207. Rotating rod; 1208. Cleaning brush body; 13. Rotating vibration mechanism; 1301. Connecting rotating plate; 1302. Cylinder; 1303. T-shaped round convex rod; 1304. Second spring; 1305. Semicircular convex block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, the present invention provides a technical solution: an iron roughneck spinner, comprising a spinner clamping cylinder 1, a top of the spinner clamping cylinder 1 is fixedly connected to a spinner synchronous diverter valve block 2, one end of the spinner clamping cylinder 1 is fixedly connected to a spinner left arm 4, and the other end of the spinner clamping cylinder 1 is fixedly connected to a right arm 7, a spinner seat 3 is fixedly connected between the left arm 4 and the right arm 7 of the spinner through a pin shaft, and the front ends of the left arm 4 and the right arm 7 of the spinner are respectively A left roller assembly 5 and a right roller assembly 6 are fixedly connected, a connecting column 8 is fixedly connected to the outer wall of the spinner seat 3, and side connecting plates 9 are fixedly connected to both ends of the connecting column 8, an offset support mechanism 10 and a movable cleaning mechanism 12 are provided between a pair of side connecting plates 9 and the left roller assembly 5 and the right roller assembly 6, an extrusion spraying mechanism 11 is provided between the side connecting plates 9 and the offset support mechanism 10, and a rotating vibration mechanism 13 is provided between the side connecting plates 9 and the movable cleaning mechanism 12.

[0031] According to the overall structure of the device, the front ends of the left and right arms 4 and 7 of the roughneck spinner are clamped by extending the clamping cylinder 1 of the spinner, so that the left roller assembly 5 and the right roller assembly 6 simultaneously hold the pipe column, and then the roller 503 is driven to rotate by four hydraulic motors to tighten / loosen the pipe column at high speed. When the left and right roller assemblies 5 and 6 clamp the pipe column and perform high-speed tightening or loosening work, the offset support mechanism 10 can support the left and right roller assemblies 5 and 6, so that the left and right roller assemblies 5 and 6 can perform stable spinning work with the pipe column. After the left and right roller assemblies 5 and 6 finish working, they are cleaned in time by the extrusion spraying mechanism 11, the mobile cleaning mechanism 12 and the rotating vibration mechanism 13 to reduce the adhesion of dirt, so as to facilitate the subsequent spinning work and ensure the stability of the operation of the roughneck spinner.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the left roller assembly 5 consists of a spinner motor 501, a left roller bracket 502, a roller 503, a bearing assembly 504, a full-axis roller shaft 505 and a key 506. The left roller bracket 502 is fixedly connected to the left arm 4 of the spinner through a pin shaft, and the bearing assembly 504 is installed on the top and bottom of the left roller bracket 502. The left roller bracket 502 is connected to the roller 503 through the full-axis roller shaft 505 and the key 506. The bearing assembly 504 on the top of the left roller bracket 502 is inserted into the spinner motor 501, and the spinner seat 3 is suspended on the spinner support frame of the iron roughneck. The left arm 4 of the spinner and the left roller assembly 5 form a scissor-shaped structure with the right arm 7 and the right roller assembly 6.

[0033] By setting the spinner to adopt a four-motor parallel structure and synchronously driving the four motors in a synchronous shunt mode, the problem of roller 503 slipping caused by pipe column depression and the like is solved. At the same time, the spinner roller assembly is driven by a full-axis roller 503, and its structure is that the full-axis roller shaft 505 runs through the entire left roller bracket 502 and the right roller bracket, and the full-axis roller shaft 505 passes through two sets of bearing assemblies 504. The whole structure has stronger bending resistance, thereby increasing the service life of the spinner.

[0034] like Figure 1 , Figure 5 and Figure 6 As shown, the offset support mechanism 10 includes a pair of fixed plates 1001, and the pair of fixed plates 1001 are fixedly connected to the left roller assembly 5 and the right roller assembly 6 respectively. The ends of the pair of fixed plates 1001 that are far away are rotatably connected to a pair of V-shaped connecting rods 1002 through two pairs of arc-shaped pieces. The ends of the pair of side connecting plates 9 that are close to each other are fixedly connected to a pair of I-shaped rods 1003. The outer walls of the two pairs of I-shaped rods 1003 are sleeved with movable blocks 1004, and one end of the V-shaped connecting rod 1002 is rotatably connected to one end of the movable block 1004 through a pair of arc-shaped pieces. The outer walls of the two pairs of I-shaped rods 1003 are sleeved with a pair of first springs 1005, and the two ends of the pair of first springs 1005 are respectively connected to the inner wall of the I-shaped rod 1003 and the movable block The two ends of 1004 are fixedly connected, and the offset support mechanism 10 also includes two pairs of first rack plates 1006 fixedly connected to the top ends of the two pairs of movable blocks 1004 respectively, and the ends of a pair of side connecting plates 9 away from each other are fixedly connected with an electric telescopic rod 1007, and the ends of the electric telescopic rod 1007 away from the side connecting plate 9 are fixedly connected with a movable straight plate 1008, and the ends of the movable straight plate 1008 close to the side connecting plate 9 are fixedly connected with a pair of connecting round rods 1009, the outer walls of the pair of side connecting plates 9 are each drilled with a pair of through holes, and the ends of the pair of connecting round rods 1009 away from the movable straight plate 1008 are passed through the through holes and are fixedly connected with a second rack plate 10010, and the second rack plate 10010 corresponds to the first rack plate 1006.

[0035] By setting the offset supporting mechanism 10, when the left roller assembly 5 and the right roller assembly 6 move to clamp the pipe column, the two pairs of V-shaped connecting rods 1002 deflect with the synchronous movement of the left roller assembly 5 and the right roller assembly 6, and pull the two pairs of movable blocks 1004 to move along the I-shaped rod 1003, and at the same time drive the two pairs of first rack plates 1006 to move synchronously. After the left roller assembly 5 and the right roller assembly 6 move to clamp the pipe column, the movement stops. At this time, a pair of electric telescopic rods 1007 pull the movable straight plates 1008 toward each other to move, and drive the second rack plate 10010 to engage with the first rack plate 1006 through the connecting round rod 1009 to limit and fix, so as to realize the resisting support when the left roller assembly 5 and the right roller assembly 6 are tightened or loosened with the pipe column at high speed, reduce the shaking effect during the screwing process, and effectively improve the screwing stability of the left roller assembly 5 and the right roller assembly 6.

[0036] like Figure 1 , Figure 6 and Figure 7 As shown, the squeezing spray mechanism 11 includes a pair of storage frames 1101, the bottom ends of the pair of storage frames 1101 are respectively fixedly connected to the top ends of a pair of side connecting plates 9, the ends of the pair of storage frames 1101 that are far away are fixedly connected to a liquid storage frame 1102, and a plurality of evenly distributed sports spray bottle nozzles 1105 are embedded and connected between the liquid storage frame 1102 and the storage frame 1101, the ends of the pair of movable straight plates 1008 that are close to each other are fixedly connected to a push-pull rod 1104, and the end of the liquid storage frame 1102 close to the movable straight plate 1008 is opened. There is a circular hole, and one end of the push-pull rod 1104 away from the movable straight plate 1008 passes through the circular hole and is fixedly connected to a sealing extrusion plate 1103. The outer wall of the push-pull rod 1104 is in close contact with the inner wall of the circular hole, and the outer wall of the sealing extrusion plate 1103 is in close contact with the inner wall of the liquid storage frame 1102. A liquid injection port is opened at the top of the liquid storage frame 1102, and a sealing plug 1106 is provided on the top of the liquid injection port, and the outer wall of the sealing plug 1106 is in close contact with the inner wall of the liquid injection port, and a pair of collection boxes 1107 are fixedly connected to the inner bottom ends of the storage frames 1101.

[0037] By setting the extrusion spraying mechanism 11, the sealing plug 1106 is removed and cleaning liquid can be added to the liquid storage frame 1102 through the liquid filling port. Then, when a pair of electric telescopic rods 1007 pull the movable straight plate 1008 toward each other, the pair of push-pull rods 1104 move synchronously with the movable straight plate 1008, driving the pair of sealed extrusion plates 1103 to move toward each other, and the cleaning liquid inside the liquid storage frame 1102 is squeezed through the sports spray bottle nozzle 1105 and sprayed toward the cleaning brush body 1208, soaking the cleaning brush body 1208 to facilitate subsequent cleaning and enhance the cleaning effect.

[0038] like Figure 1 , Figure 7 and Figure 8As shown, the mobile cleaning mechanism 12 includes two pairs of sliding cylinders 1201, and the two pairs of sliding cylinders 1201 are respectively fixedly connected to the outer walls of a pair of storage frames 1101, and a connecting frame 1202 is fixedly connected between the output ends of a pair of sliding cylinders 1201, the top of the connecting frame 1202 is fixedly connected to an L-shaped plate 1203, and one end of the L-shaped plate 1203 is fixedly connected to a lifting cylinder 1204, the bottom end of the lifting cylinder 1204 is fixedly connected to a motor 1205, and the bottom end of the motor 1205 is fixedly connected to a rectangular plate 1206, the bottom end of the rectangular plate 1206 is rotatably connected to a rotating rod 1207, and the top of the rotating rod 1207 is fixedly connected to the output end of the motor 1205, the outer wall of the rotating rod 1207 is fixedly connected to a cleaning brush body 1208, and the cleaning brush body 1208 is located in the storage frame 1101.

[0039] By setting the mobile cleaning mechanism 12, a pair of sliding rod cylinders 1201 on one side are operated to work, and the lifting cylinder 1204 and the cleaning brush body 1208 are driven to move to the central axis position between the left roller assembly 5 and the right roller assembly 6 through the connecting frame 1202 and the L-shaped plate 1203. Then the lifting cylinder 1204 drives the motor 1205 and the cleaning brush body 1208 to move downward until they contact the roller 503. The left roller assembly 5 and the right roller assembly 6 drive the roller 503 to rotate. At the same time, the motor 1205 drives the rotating rod 1207 and the cleaning brush body 1208 to rotate in the opposite direction. The contact friction is used to brush and clean the dirt on the surface of the roller 503, and the dirt adhered to the surface of the left roller assembly 5 and the right roller assembly 6 during the screwing process is removed to prevent the dirt from staying on the surface and affecting the subsequent screwing work. The cleaning brush body 1208 on the other side cleans the left roller assembly 5 and the right roller assembly 6 after they continue to work. The cleanliness of the left roller assembly 5 and the right roller assembly 6 is ensured by alternating cleaning of a pair of cleaning brush bodies 1208, the interference of the screwing work is reduced, the working stability of the left roller assembly 5 and the right roller assembly 6 is ensured, and the working stability of the iron roughneck screwdriver is ensured.

[0040] like Figure 1 , Figure 8 and Fig. 9As shown, the rotating vibration mechanism 13 includes two pairs of connected rotating plates 1301, and the two pairs of connected rotating plates 1301 are respectively fixedly connected to the outer walls of a pair of rotating rods 1207, and the tops of the two pairs of connected rotating plates 1301 are embedded with cylinders 1302, and the inner wall of the cylinder 1302 is slidably connected with a T-shaped round convex rod 1303, the inner bottom end of the cylinder 1302 and one end of the T-shaped round convex rod 1303 are fixedly connected with a second spring 1304, and the inner top end of the cylinder 1302 is drilled with a through hole, the other end of the T-shaped round convex rod 1303 passes through the through hole and contacts with the bottom end of the rectangular plate 1206, and the bottom end of the rectangular plate 1206 is fixedly connected with a plurality of evenly distributed semicircular protrusions 1305, and the T-shaped round convex rod 1303 is located between the plurality of semicircular protrusions 1305.

[0041] By setting the rotating shaking mechanism 13, a pair of connected rotating plates 1301 rotate synchronously with the rotating rod 1207, driving a pair of cylinders 1302 and T-shaped round convex rods 1303 to perform circular motion along the bottom end of the rectangular plate 1206, and repeatedly contact and move away from multiple semicircular protrusions 1305 on the motion path. Under the squeezing of the semicircular protrusions 1305 and the alternating action of the elasticity of the second spring 1304, the T-shaped round convex rods 1303 repeatedly contact and collide with the bottom end of the rectangular plate 1206, generating vibration, which is transmitted to the rotating rod 1207 and the cleaning brush body 1208. The vibration effect is used to shake off the dirt attached to the cleaning brush body 1208 during the cleaning process, avoiding obstruction and interference to the cleaning of the cleaning brush body 1208, and effectively enhancing the cleaning effect of the cleaning brush body 1208 on the roller 503.

[0042] Working principle: The clamping cylinder 1 of the spinner extends to drive the front end of the left arm 4 and the right arm 7 of the spinner to deflect and clamp, so that it drives the left roller assembly 5 and the right roller assembly 6 to hold the pipe column at the same time. At the same time, the two pairs of V-shaped connecting rods 1002 move and deflect synchronously with the left roller assembly 5 and the right roller assembly 6, and pull the two pairs of movable blocks 1004 and the first rack plate 1006 to move along the I-shaped rod 1003. After the left roller assembly 5 and the right roller assembly 6 move to clamp the pipe column, a pair of electric telescopic rods 1007 pull the movable straight plate 1008 towards each other and move towards each other, and drive the second rack plate 10010 and the first rack plate 1006 through the connecting round rod 1009. At the same time, a pair of push-pull rods 1104 move synchronously with the movable straight plate 1008, driving a pair of sealing extrusion plates 1103 to move toward each other, squeezing the cleaning liquid inside the liquid storage frame 1102 to spray to the cleaning brush body 1208 through the sports spray bottle nozzle 1105, soaking the cleaning brush body 1208, and then driving the four hydraulic motors to drive the rollers 503 to rotate to tighten or loosen the pipe column at high speed. After the tightening or loosening work is completed, the left roller assembly 5 and the right roller assembly 6 are separated from the pipe column, and the pair of sliding rod cylinders 1201 on one side are operated to work, driving the lifting cylinder through the connecting frame 1202 and the L-shaped plate 1203. 1204 and the cleaning brush body 1208 move to the central axis position between the left roller assembly 5 and the right roller assembly 6, and then the lifting cylinder 1204 drives the motor 1205 and the cleaning brush body 1208 to move downward until they contact with the roller 503, and the left roller assembly 5 and the right roller assembly 6 drive the roller 503 to rotate, and at the same time, the motor 1205 drives the rotating rod 1207 and the cleaning brush body 1208 to rotate in the opposite direction, rotating and rubbing against each other, and a pair of connected rotating plates 1301 rotate synchronously with the rotating rod 1207, driving a pair of cylinders 1302 and T-shaped round convex rods 1303 to perform circular motion along the bottom end of the rectangular plate 1206 , and contacts with multiple semicircular protrusions 1305 in turn on the movement path, and after being squeezed by them, moves toward the inside of the cylinder 1302 and separates from the bottom end of the rectangular plate 1206. After the T-shaped round protrusion rod 1303 is away from the semicircular protrusion 1305 at this position, the T-shaped round protrusion rod 1303 is reset upward under the elastic action of the second spring 1304, and contacts and collides with the bottom end of the rectangular plate 1206. This is repeated to generate vibration, which is transmitted to the rotating rod 1207 and the cleaning brush body 1208, shaking off the dirt attached to the cleaning brush body 1208 during the cleaning process, making it convenient for the cleaning brush body 1208 to brush and clean the dirt on the left roller assembly 5 and the right roller assembly 6.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An iron roughneck spinner, comprising a spinner clamping cylinder (1), characterized in that: The top end of the spinner clamping oil cylinder (1) is fixedly connected to a spinner synchronous diverter valve block (2); one end of the spinner clamping oil cylinder (1) is fixedly connected to a spinner left support arm (4); and the other end of the spinner clamping oil cylinder (1) is fixedly connected to a right support arm (7); a spinner seat (3) is fixedly connected between the spinner left support arm (4) and the right support arm (7) via a pin shaft; and the front ends of the spinner left support arm (4) and the right support arm (7) are fixedly connected to a left roller assembly (5) and a right roller assembly (6) respectively. ), the outer wall of the spinner seat (3) is fixedly connected with a connecting column (8), and both ends of the connecting column (8) are fixedly connected with side connecting plates (9), a pair of side connecting plates (9) and a left roller assembly (5) and a right roller assembly (6) are provided with an offset supporting mechanism (10) and a movable cleaning mechanism (12), an extrusion spraying mechanism (11) is provided between the side connecting plates (9) and the offset supporting mechanism (10), and a rotating vibration dropping mechanism (13) is provided between the side connecting plates (9) and the movable cleaning mechanism (12).

2. The iron roughneck spinner according to claim 1, characterized in that: The left roller assembly (5) is composed of a spinner motor (501), a left roller bracket (502), a roller (503), a bearing assembly (504), a full-axis roller shaft (505) and a key (506); the left roller bracket (502) is fixedly connected to the left support arm (4) of the spinner through a pin shaft, and the bearing assembly (504) is installed on the top and bottom of the left roller bracket (502); the left roller bracket (502) is connected to the roller (503) through the full-axis roller shaft (505) and the key (506); and the bearing assembly (504) on the top of the left roller bracket (502) is inserted into the spinner motor (501).

3. The iron roughneck spinner according to claim 1, characterized in that: The spinner seat (3) is hung on a spinner support frame of the iron roughneck, and a scissor-shaped structure is formed between the left support arm (4) and the left roller assembly (5) of the spinner and the right support arm (7) and the right roller assembly (6).

4. The iron roughneck spinner according to claim 1, characterized in that: The offset supporting mechanism (10) comprises a pair of fixed plates (1001), wherein the pair of fixed plates (1001) are fixedly connected to the left roller assembly (5) and the right roller assembly (6) respectively; the ends of the pair of fixed plates (1001) that are far away from each other are rotatably connected to a pair of V-shaped connecting rods (1002) via two pairs of arc-shaped pieces; the ends of the pair of side connecting plates (9) that are close to each other are fixedly connected to a pair of I-shaped rods (1003); the outer walls of the two pairs of I-shaped rods (1003) are sleeved with movable blocks (1004), and one end of the V-shaped connecting rod (1002) is rotatably connected to one end of the movable block (1004) via a pair of arc-shaped pieces; the outer walls of the two pairs of I-shaped rods (1003) are sleeved with a pair of first springs (1005), and the two ends of the pair of first springs (1005) are fixedly connected to the inner wall of the I-shaped rod (1003) and the two ends of the movable block (1004), respectively.

5. The iron roughneck spinner according to claim 4, characterized in that: The offset supporting mechanism (10) further comprises two pairs of first rack plates (1006) respectively fixedly connected to the top ends of the two pairs of movable blocks (1004); the ends of the pair of side connecting plates (9) away from each other are fixedly connected to an electric telescopic rod (1007); the ends of the electric telescopic rod (1007) away from the side connecting plate (9) are fixedly connected to a movable straight plate (1008); the ends of the movable straight plate (1008) close to the side connecting plate (9) are fixedly connected to a pair of connecting round rods (1009); the outer walls of the pair of side connecting plates (9) are respectively provided with a pair of through holes; the ends of the pair of connecting round rods (1009) away from the movable straight plate (1008) are respectively passed through the through holes and fixedly connected to a second rack plate (10010); the second rack plate (10010) corresponds to the first rack plate (1006).

6. The iron roughneck spinner according to claim 5, characterized in that: The squeezing spray mechanism (11) comprises a pair of storage frames (1101), the bottom ends of the pair of storage frames (1101) are respectively fixedly connected to the top ends of a pair of side connecting plates (9), the ends of the pair of storage frames (1101) that are far away from each other are fixedly connected to a liquid storage frame (1102), and a plurality of evenly distributed sports spray bottle nozzles (1105) are embedded and connected between the liquid storage frame (1102) and the storage frame (1101), the ends of the pair of movable straight plates (1008) that are close to each other are fixedly connected to a push-pull rod (1104), and the end of the liquid storage frame (1102) close to the movable straight plate (1008) is chiseled with a A circular hole, one end of the push-pull rod (1104) away from the movable straight plate (1008) passes through the circular hole and is fixedly connected to a sealing extrusion plate (1103), the outer wall of the push-pull rod (1104) is in close contact with the inner wall of the circular hole, the outer wall of the sealing extrusion plate (1103) is in close contact with the inner wall of the liquid storage frame (1102), a liquid injection port is opened at the top of the liquid storage frame (1102), a sealing plug (1106) is provided on the top of the liquid injection port, and the outer wall of the sealing plug (1106) is in close contact with the inner wall of the liquid injection port, and a pair of collection boxes (1107) are fixedly connected to the inner bottom ends of the storage frames (1101).

7. The iron roughneck spinner according to claim 6, characterized in that: The mobile cleaning mechanism (12) comprises two pairs of sliding rod cylinders (1201), the two pairs of sliding rod cylinders (1201) are respectively fixedly connected to the outer walls of a pair of storage frames (1101), and a connecting frame (1202) is fixedly connected between the output ends of the pair of sliding rod cylinders (1201), the top end of the connecting frame (1202) is fixedly connected to an L-shaped plate (1203), and one end of the L-shaped plate (1203) is fixedly connected to a lifting cylinder (1204), and the lifting cylinder ( The bottom end of the housing (1104) is fixedly connected to a motor (1205), and the bottom end of the motor (1205) is fixedly connected to a rectangular plate (1206), the bottom end of the rectangular plate (1206) is rotatably connected to a rotating rod (1207), and the top end of the rotating rod (1207) is fixedly connected to the output end of the motor (1205), the outer wall of the rotating rod (1207) is fixedly connected to a cleaning brush body (1208), and the cleaning brush body (1208) is located in the storage frame (1101).

8. The iron roughneck spinner according to claim 1, characterized in that: The rotating vibration mechanism (13) comprises two pairs of connecting rotating plates (1301), the two pairs of connecting rotating plates (1301) are respectively fixedly connected to the outer walls of a pair of rotating rods (1207), the top ends of the two pairs of connecting rotating plates (1301) are embedded with cylinders (1302), and the inner walls of the cylinders (1302) are slidably connected with T-shaped round convex rods (1303), and the inner bottom ends of the cylinders (1302) are connected to the T-shaped round convex rods (1303). One end of the T-shaped round convex rod (1303) is fixedly connected to a second spring (1304), and a through hole is drilled at the inner top end of the cylinder (1302), and the other end of the T-shaped round convex rod (1303) passes through the through hole and contacts the bottom end of the rectangular plate (1206), and the bottom end of the rectangular plate (1206) is fixedly connected to a plurality of evenly distributed semicircular convex blocks (1305), and the T-shaped round convex rod (1303) is located between the plurality of semicircular convex blocks (1305).

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