Material turning mechanism for oil drill pipe joint production line

Abstract

The invention discloses a material turning mechanism for a petroleum drill pipe joint production line, and relates to the technical field of assembly tooling. The material turning mechanism for a petroleum drill pipe joint production line comprises a load-bearing platform, a transmission mechanism is fixedly installed on the top of the load-bearing platform, the transmission mechanism comprises a mounting frame and a conveyor belt, the mounting frame is fixedly installed on the top of the load-bearing platform, the conveyor belt is arranged inside the mounting frame, a support frame is fixedly installed on a side of the load-bearing platform away from the transmission mechanism, a linear drive mechanism is fixedly installed on a side of the support frame close to the transmission mechanism, a rectangular plate is fixedly installed on the output end of the linear drive mechanism, wherein the turning device comprises a driving motor, a rotating frame, an electric push rod, a mounting plate, a positioning rod, a round rod, a rubber plate, a No. 1 spring, a rotating shaft and a clamping plate, the contact area with the drill pipe joint is increased by the clamping plate, so as to ensure that the drill pipe joint is stably clamped when turning over.

Description

Technical Field

[0001] The invention relates to the technical field of assembly tooling, in particular to a material turning mechanism for a petroleum drill pipe joint production line. Background Art

[0002] The oil drill pipe joint is a key component in drilling equipment. The design and manufacturing requirements of the drill pipe joint are very high to ensure that the operation can be completed safely and reliably during the drilling process.

[0003] The patent with patent announcement number CN212923360U relates to a material turning device and production line, wherein the material turning device includes a frame and a storage table, a turning mechanism and a lifting mechanism arranged on the frame, wherein the storage table is used to place materials; the turning mechanism is arranged above the storage table, and the turning mechanism includes a clamping frame for clamping the material, a rotating shaft and a first driving member arranged on one side of the clamping frame, wherein the first driving member drives the rotating shaft to rotate to drive the clamping frame to turn over; the lifting mechanism is connected to the turning mechanism to drive the turning mechanism to rise or fall. The patent uses the clamping frame to hold the material, such as the back panel of the liquid crystal module, to ensure the fit between the tempered glass and the iron back panel during the turning process, thereby improving the product quality; and the turning device can realize 180-degree turning of the material, which can save manpower and reduce the high turnover rate caused by high-intensity labor.

[0004] The above patent has the effect of reducing the labor intensity of the staff. After the clamping frame clamps the material, the lifting mechanism drives the clamping frame to move upward to the specified position, and then the flipping device is started to drive the clamping frame to rotate 180 degrees to complete the flipping of the material, saving manpower while improving the flipping efficiency. However, when flipping the oil drill pipe joint, the flat clamping plate cannot completely fit the cylindrical surface of the drill pipe joint, causing the oil drill pipe joint to shake or slide during the flipping process, thereby affecting the flipping accuracy and safety. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a material turning mechanism for a petroleum drill pipe joint production line, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a material turning mechanism of a petroleum drill pipe joint production line, including a load-bearing platform, a transmission mechanism is fixedly installed on the top of the load-bearing platform, the transmission mechanism includes a mounting frame and a conveyor belt, the mounting frame is fixedly installed on the top of the load-bearing platform, the conveyor belt is arranged inside the mounting frame, a support frame is fixedly installed on the side of the load-bearing platform away from the transmission mechanism, a linear drive mechanism is fixedly installed on the side of the support frame close to the transmission mechanism, a rectangular plate is fixedly installed on the output end of the linear drive mechanism, and also includes a turning device; wherein the turning device includes a driving motor, a rotating frame, an electric push rod, a carrying plate, a positioning rod, a round rod, a rubber plate, a No. 1 spring, a rotating shaft and a clamping plate, the drill pipe joint is placed on the top of the conveyor belt of the transmission mechanism, and started Transmission mechanism, the conveyor belt rotates to drive the drill rod joint to move toward the rotating frame, the driving motor is fixedly penetrated through the inner and outer walls of the rectangular plate, the rotating frame is fixedly installed on the output end of the driving motor, the electric push rod is fixedly penetrated through the inner and outer walls of the rotating frame, the carrying plate is fixedly installed on the output end of the electric push rod, the positioning rod is fixedly installed on the surface of the rotating frame, the round rod slides through the inner and outer walls of the rotating frame, the rubber plate is fixedly installed on the end of the round rod away from the driving motor, the No. 1 spring is arranged between the rubber plate and the carrying plate, the carrying plate moves to squeeze the No. 1 spring, the No. 1 spring is squeezed and deformed, and the deformed No. 1 spring applies thrust to the rubber plate under the action of its own elasticity, the rotating shaft is rotatably installed on the inner wall of the carrying plate, and the clamping plate is fixedly installed on the circumferential surface of the rotating shaft.

[0007] According to the above technical solution, the rubber sheet is provided with corrugation 1 on one side away from the mounting plate, and the corrugation 1 of the rubber sheet contacts the outer wall of the drill rod joint during movement, and the corrugation 1 stops moving due to the resistance exerted by the drill rod joint. The rubber sheet is provided with arc surface 1 on one end close to the clamping plate, and the clamping plate is provided with inclined surface 1 on one end close to the rubber sheet, and the inclined surface 1 contacts the arc surface 1 of the rubber sheet during movement, and the arc surface 1 exerts resistance on the inclined surface 1 during movement.

[0008] According to the above technical solution, a No. 1 spiral spring is arranged between the rotating shaft and the mounting plate. The clamping plate stretches the No. 1 spiral spring during the rotation process, and the No. 1 spiral spring is deformed due to the stretching. The side of the clamping plate away from the mounting plate is provided with a second corrugation. The second corrugation of the clamping plate contacts the outer wall of the drill rod joint during the movement, so that the clamping plate continues to rotate to apply a clamping force to the drill rod joint, and a limiting groove is provided on the circumferential surface of the positioning rod.

[0009] According to the above technical solution, it also includes an auxiliary device and a locking device; the auxiliary device includes a loading box, a hollow plate, a telescopic cylinder, a No. 2 spring, a contact plate, a connecting block, a rotating plate, a resisting plate, a comb plate and a spring, the positioning rod contacts the contact plate during the downward movement, the positioning rod continues to move to apply downward pressure to the contact plate, and the contact plate moves downward under the influence of the pressure, the loading box is fixedly passed through the top of the mounting frame, the hollow plate is fixedly installed at the bottom of the inner wall of the loading box, the telescopic cylinder slides through the top of the hollow plate, the No. 2 spring is arranged between the telescopic cylinder and the hollow plate, the contact The plate is fixedly mounted on the top of the telescopic cylinder, the connecting block is fixedly mounted on the circumferential surface of the telescopic cylinder, the rotating plate is rotatably mounted on the inner wall of the connecting block, the abutting plate is fixedly mounted on the side of the connecting block away from the telescopic cylinder, the comb plate is slidably mounted on the bottom of the inner wall of the loading box, the spring sheet is arranged between the comb plate and the loading box, the comb plate moves to squeeze the spring sheet, the spring sheet is deformed by the squeezing, and the deformed spring sheet applies a reaction force to the comb plate under the action of its own elasticity, a rectangular groove is provided on one side of the hollow plate close to the comb plate, the connecting block contacts the rectangular groove, and an arc surface 2 is provided on the top of the contact plate.

[0010] According to the above technical solution, a No. 2 scroll spring is arranged between the rotating plate and the connecting block. The rotating plate stretches the No. 2 scroll spring during rotation, and the No. 2 scroll spring is deformed due to the stretching. The end of the abutment plate away from the connecting block contacts the bottom of the rotating plate.

[0011] According to the above technical solution, an arc surface three is provided at one end of the rotating plate away from the connecting block, and an inclined surface one is provided on one side of the comb plate away from the spring sheet. The inclined surface one is in contact with the arc surface three. The inclined surface one is affected by the reaction force and is in close contact with the arc surface three, so that the comb plate exerts a continuously increasing resistance on the moving rotating plate.

[0012] The locking device comprises a hollow frame, a movable plate, a Z-shaped sheet, a limiting rod, a cylindrical rod, an elastic sheet and a plurality of collision blocks. The movable plate moves to extrude the Z-shaped sheet, and the Z-shaped sheet is deformed due to the extrusion. At the same time, the movable plate moves to drive the limiting rod to move in a direction away from the second arc surface. The hollow frame is fixedly mounted on the inner wall of the loading box, and the movable plate is slidably mounted inside the hollow frame. The Z-shaped sheet is arranged between the movable plate and the hollow frame. The limiting rod is fixedly mounted on a side of the movable plate away from the second arc surface, the cylindrical rod is fixedly mounted on the top of the movable plate, the cylindrical rod slides through the top of the hollow frame, the elastic sheet is fixedly mounted on the circumferential surface of the cylindrical rod, and a plurality of collision blocks are fixedly mounted on the top of the hollow frame. A second inclined surface is provided on a side of the movable plate close to the second arc surface, and the second arc surface of the contact plate moves downward and contacts the second inclined surface. The second arc surface continues to move to apply a thrust to the second inclined surface, and the movable plate is affected by the thrust and moves in a direction away from the second arc surface.

[0013] According to the above technical solution, the several collision blocks are equidistantly distributed on the top of the hollow frame, and the elastic sheet is provided with an arc surface four on a side away from the collision block. The arc surface four of the elastic sheet contacts the circumferential surface of the collision block during movement, and the collision block blocks the elastic sheet, causing the elastic sheet to continue to move and deform.

[0014] The present invention provides a material turning mechanism for a petroleum drill pipe joint production line. It has the following beneficial effects:

[0015] (1) In the material flipping mechanism of the oil drill pipe joint production line, the No. 1 spring applies thrust to the rubber plate, and the rubber plate applies a stable clamping force to the drill pipe joint under the action of the thrust. The drill pipe joint is stably clamped by the rubber plate to reduce looseness during flipping, thereby improving the integrity of the drill pipe joint during flipping. The clamping plate contacts the outer wall of the drill pipe joint during movement, so that the clamping plate applies a clamping force to the drill pipe joint, and the contact area with the drill pipe joint is increased by the clamping plate, ensuring that the rubber plate and the clamping plate can stably clamp the uneven drill pipe joint for flipping.

[0016] (2) In the material turning mechanism of the oil drill pipe joint production line, the contact plate applies an upward thrust to the positioning rod during movement, making the output end of the linear drive mechanism move more stably. The contact plate applies additional thrust to reduce the load on the output end of the linear drive mechanism, extend the service life of the linear drive mechanism, and improve the material turning efficiency. The comb plate applies a continuously increasing resistance to the rotating plate, and the speed of the rotating plate is slowed down by the resistance. By applying intermittent resistance to the rotating plate, it is effectively ensured that the contact plate applies a stable thrust to the positioning rod, reducing the safety risks caused by thrust fluctuations.

[0017] (3) In the material turning mechanism of the oil drill pipe joint production line, the limit rod passes through the limit slot, so that the limit rod applies a limit to the rotation of the positioning rod. The limit rod automatically limits the rotation of the positioning rod to avoid the operator's operating error in starting the drive motor, which causes the rotating frame and the conveyor belt to collide. The elastic sheet and the collision block intermittently collide to generate vibration, and the collision block transmits the vibration to the limit rod through resonance. The vibration generated by the intermittent collision between the elastic sheet and the collision block helps to avoid the limit rod from getting stuck when entering the limit slot, thereby improving the smoothness of work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall half-section structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the turning device of the present invention;

[0021] Figure 4 It is a schematic diagram of the internal structure of the turning device of the present invention;

[0022] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0023] Figure 6 It is a schematic diagram of the internal structure of the auxiliary device and the locking device of the present invention;

[0024] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0025] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point C in the middle.

[0026] In the figure: 1. load-bearing platform; 2. transmission mechanism; 3. support frame; 4. linear drive mechanism; 5. rectangular plate; 6. drive motor; 7. rotating frame; 8. electric push rod; 9. carrying plate; 10. positioning rod; 11. round rod; 12. rubber plate; 13. spring No. 1; 14. rotating shaft; 15. clamping plate; 161. loading box; 162. hollow plate; 163. telescopic cylinder; 164. spring No. 2; 165. contact plate; 166. connecting block; 167. rotating plate; 168. abutment plate; 169. comb plate; 1610. spring; 171. hollow frame; 172. moving plate; 173. Z-shaped plate; 174. limiting rod; 175. cylindrical rod; 176. elastic plate; 177. collision block. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-Figure 8, one embodiment of the present invention is: a material turning mechanism for a petroleum drill pipe joint production line, comprising a load-bearing platform 1, a transmission mechanism 2 is fixedly installed on the top of the load-bearing platform 1, the transmission mechanism 2 comprises a mounting frame and a conveyor belt, the mounting frame is fixedly installed on the top of the load-bearing platform 1, the conveyor belt is arranged inside the mounting frame, a support frame 3 is fixedly installed on the side of the load-bearing platform 1 away from the transmission mechanism 2, a linear drive mechanism 4 is fixedly installed on the side of the support frame 3 close to the transmission mechanism 2, a rectangular plate 5 is fixedly installed on the output end of the linear drive mechanism 4, and also comprises a turning device; wherein the turning device comprises a driving motor 6, a rotating frame 7, an electric push rod 8, a carrying plate 9, a positioning rod 10, a round rod 11, a rubber plate 12, a No. 1 spring 13, a rotating shaft 14 and a clamping plate 15, the driving motor 6 is fixedly passed through the rectangular plate 14 and the clamping plate 15, The inner and outer walls of the shaped plate 5, the rotating frame 7 is fixedly mounted on the output end of the driving motor 6, the electric push rod 8 is fixedly passed through the inner and outer walls of the rotating frame 7, the carrying plate 9 is fixedly mounted on the output end of the electric push rod 8, the positioning rod 10 is fixedly mounted on the surface of the rotating frame 7, the round rod 11 slides through the inner and outer walls of the rotating frame 7, the rubber plate 12 is fixedly mounted on the end of the round rod 11 away from the driving motor 6, the No. 1 spring 13 is arranged between the rubber plate 12 and the carrying plate 9, the rotating shaft 14 is rotatably mounted on the inner wall of the carrying plate 9, and the clamping plate 15 is fixedly mounted on the circumferential surface of the rotating shaft 14. The reaction force applied by the No. 1 spring 13 ensures that the rubber plate 12 can stably clamp drill pipe joints of different sizes and effectively reduce looseness during flipping, thereby improving the integrity of the drill pipe joints during flipping.

[0029] A corrugation 1 is formed on one side of the rubber sheet 12 away from the mounting plate 9, a curved surface 1 is formed on one end of the rubber sheet 12 close to the clamping plate 15, and a slope 1 is formed on one end of the clamping plate 15 close to the rubber sheet 12. By forming the curved surface 1 and the slope 1, when the curved surface 1 and the slope 1 are in contact, the curved surface 1 can stably apply resistance to the slope 1 to perform subsequent work.

[0030] A spiral spring No. 1 is arranged between the rotating shaft 14 and the mounting plate 9, a corrugation No. 2 is provided on the side of the clamping plate 15 away from the mounting plate 9, a limiting groove is provided on the circumferential surface of the positioning rod 10, and a clamping force is applied to the drill rod joint through the clamping plate 15 to increase the contact area of ​​the clamping, thereby ensuring that the rubber sheet 12 and the clamping plate 15 can stably clamp the uneven drill rod joint for flipping work.

[0031] When the present embodiment is working, the drill rod joint is placed on the top of the conveyor belt of the transmission mechanism 2, the transmission mechanism 2 is started, the conveyor belt rotates to drive the drill rod joint to move toward the rotating frame 7, when the drill rod joint moves to the bottom of the rotating frame 7, the transmission mechanism 2 is closed, the drill rod joint stops moving, the linear drive mechanism 4 is started, the output end of the linear drive mechanism 4 drives the drive motor 6 to move downward, the drive motor 6 moves to drive the rotating frame 7 to move downward, the rotating frame 7 moves to drive the positioning rod 10 to move downward, and at the same time, the rotating frame 7 moves to drive the electric push rod 8 to move downward, the electric push rod 8 moves to drive the carrying plate 9 to move downward, the linear drive mechanism 4 drives the drive motor 6 to move to the specified position and then stops moving, driving the electric push rod 8, the output end of the electric push rod 8 moves to drive the carrying plate 9 The plate 9 moves in the direction away from the positioning rod 10, and the movement of the carrying plate 9 drives the round rod 11 to move in the direction away from the electric push rod 8. The movement of the round rod 11 drives the rubber plate 12 to move in the direction away from the carrying plate 9. The corrugation 1 of the rubber plate 12 contacts the outer wall of the drill rod joint during the movement. The corrugation 1 is blocked by the drill rod joint and stops moving, so that the carrying plate 9 continues to move to squeeze the No. 1 spring 13. The No. 1 spring 13 is squeezed and deformed. The deformed No. 1 spring 13 applies a thrust to the rubber plate 12 under the action of its own elasticity. The rubber plate 12 applies a stable clamping force to the drill rod joint under the action of the thrust, so that the corrugation 1 is in close contact with the outer wall of the drill rod joint. Through the action of the No. 1 spring 13 and the rubber plate 12, a more stable clamping of the drill rod joint is achieved. The head is provided with a rotation shaft 14, which is driven by the rotating shaft 14 to move toward the rubber plate 12, and the rotation shaft 14 drives the clamping plate 15 to move toward the rubber plate 12. The inclined surface 1 of the clamping plate 15 contacts the curved surface 1 of the rubber plate 12 during the movement. The curved surface 1 applies resistance to the inclined surface 1 during the movement, so that the end of the clamping plate 15 close to the rotation shaft 14 rotates in the direction away from the rubber plate 12, and the end of the clamping plate 15 away from the rotation shaft 14 rotates in the direction close to the rubber plate 12. The clamping plate 15 stretches the No. 1 volute spring during the rotation, and the No. 1 volute spring is deformed by the stretching. At the same time, the corrugation 2 of the clamping plate 15 contacts the outer wall of the drill pipe joint during the movement, so that the clamping plate 15 continues to rotate to apply clamping force to the drill pipe joint. After the rubber plate 12 and the clamping plate 15 clamp the drill pipe joint, the output end of the linear drive mechanism 4 is reset to drive the rectangular plate 5 to move upward. The rectangular plate 5 moves to drive the rotating frame 7 to move upward. The rotating frame 7 moves to drive the electric push rod 8 to move upward. The electric push rod 8 moves to drive the carrying plate 9 to move upward. The carrying plate 9 moves to drive the round rod 11 and the rotating shaft 14 to move upward. The round rod 11 moves to drive the rubber plate 12 to move upward. The rotating shaft 14 moves to drive the clamping plate 15 to move upward, so that the clamped drill pipe joint moves upward. After the rectangular plate 5 moves to the initial position, the drive motor 6 is started. The output end of the drive motor 6 drives the rotating frame 7 to rotate 180 degrees. The rotating frame 7 rotates to drive the electric push rod 8 to rotate.The electric push rod 8 rotates to drive the carrying plate 9 to rotate, the carrying plate 9 rotates to drive the round rod 11 and the rotating shaft 14 to rotate, the round rod 11 rotates to drive the rubber plate 12 to rotate, the rotating shaft 14 rotates to drive the clamping plate 15 to rotate, so that the clamped drill rod joint rotates 180 degrees to complete the flip, and the clamping plate 15 increases the contact area with the drill rod joint to ensure that the rubber plate 12 and the clamping plate 15 can stably clamp the uneven drill rod joint for flipping.

[0032] See also Figure 1-Figure 8 On the basis of the above embodiment, another embodiment of the present invention further includes an auxiliary device and a locking device; the auxiliary device includes a loading box 161, a hollow plate 162, a telescopic cylinder 163, a second spring 164, a contact plate 165, a connecting block 166, a rotating plate 167, a stop plate 168, a comb plate 169 and a spring 1610, the loading box 161 is fixedly installed on the top of the mounting frame, the hollow plate 162 is fixedly installed on the bottom of the inner wall of the loading box 161, the telescopic cylinder 163 slides through the top of the hollow plate 162, the second spring 164 is arranged between the telescopic cylinder 163 and the hollow plate 162, the contact plate 165 is fixedly installed on the top of the telescopic cylinder 163, the connecting block 166 It is fixedly installed on the circumferential surface of the telescopic cylinder 163, the rotating plate 167 is rotatably installed on the inner wall of the connecting block 166, the abutment plate 168 is fixedly installed on the side of the connecting block 166 away from the telescopic cylinder 163, the comb plate 169 is slidably installed on the bottom of the inner wall of the loading box 161, the spring piece 1610 is arranged between the comb plate 169 and the loading box 161, and a rectangular groove is provided on the side of the hollow plate 162 close to the comb plate 169, the connecting block 166 is in contact with the rectangular groove, and an arc surface 2 is provided on the top of the contact plate 165, and an additional thrust is applied through the contact plate 165, which effectively reduces the load on the output end of the linear drive mechanism 4, extends the service life of the linear drive mechanism 4 and improves the material turning efficiency.

[0033] A No. 2 scroll spring is arranged between the rotating plate 167 and the connecting block 166, and one end of the abutment plate 168 away from the connecting block 166 contacts the bottom of the rotating plate 167. By arranging the No. 2 scroll spring, the rotating plate 167 can be smoothly reset to the initial position after rotation to prepare for the next work.

[0034] An arc surface three is provided on one end of the rotating plate 167 away from the connecting block 166, and an inclined surface one is provided on one side of the comb plate 169 away from the spring piece 1610. Inclined surface one is in contact with arc surface three, and intermittent resistance is applied to the rotating plate 167 moving upward through the comb plate 169, ensuring that the thrust applied by the contact plate 165 can be stably transmitted to the positioning rod 10, thereby reducing the safety risks caused by thrust fluctuations.

[0035] The locking device includes a hollow frame 171, a moving plate 172, a Z-shaped piece 173, a limiting rod 174, a cylindrical rod 175, an elastic piece 176 and a plurality of collision blocks 177. The hollow frame 171 is fixedly mounted on the inner wall of the loading box 161, the moving plate 172 is slidably mounted inside the hollow frame 171, the Z-shaped piece 173 is arranged between the moving plate 172 and the hollow frame 171, the limiting rod 174 is fixedly mounted on the side of the moving plate 172 away from the arc surface 2, and the cylindrical rod 175 is fixedly mounted on the side of the moving plate 172 away from the arc surface 2. It is fixedly installed on the top of the moving plate 172, the cylindrical rod 175 slides through the top of the hollow frame 171, the elastic sheet 176 is fixedly installed on the circumferential surface of the cylindrical rod 175, and a plurality of collision blocks 177 are fixedly installed on the top of the hollow frame 171. The moving plate 172 is provided with a second inclined surface on one side close to the second arc surface, and the positioning rod 10 is automatically limited in rotation by the limiting rod 174 to prevent the staff from starting the driving motor 6 due to operating errors, which may cause the rotating frame 7 and the conveyor belt to collide.

[0036] Several collision blocks 177 are evenly distributed on the top of the hollow frame 171, and an arc surface 4 is provided on a side of the elastic sheet 176 away from the collision block 177. The vibration generated by the intermittent collision between the elastic sheet 176 and the collision block 177 helps to avoid the limit rod 174 from getting stuck when entering the limit groove, thereby improving the overall smoothness of the flipping work.

[0037] When the embodiment is working, the positioning rod 10 contacts the contact plate 165 during the downward movement. The positioning rod 10 continues to move and exerts downward pressure on the contact plate 165. The contact plate 165 moves downward under the influence of the pressure. The movement of the contact plate 165 drives the telescopic cylinder 163 to move downward. The telescopic cylinder 163 squeezes the No. 2 spring 164 during the movement. The No. 2 spring 164 is squeezed and deformed. The deformed No. 2 spring 164 exerts a reaction force on the telescopic cylinder 163 under the action of its own elasticity. The telescopic cylinder 163 exerts an upward thrust on the contact plate 165 under the influence of the reaction force. The contact plate 165 exerts an upward supporting force on the positioning rod 10 under the influence of the thrust. When the positioning rod 10 is reset upward, the pressure on the contact plate 165 gradually decreases, so that The deformed No. 2 spring 164 recovers under the action of its own elasticity, and the No. 2 spring 164 recovers and drives the telescopic cylinder 163 to move upward, and the movement of the telescopic cylinder 163 drives the contact plate 165 to move upward, and the contact plate 165 applies an upward thrust to the positioning rod 10 during the movement, so that the output end of the linear drive mechanism 4 moves more stably, and the additional thrust applied by the contact plate 165 helps to reduce the load on the output end of the linear drive mechanism 4, prolong the service life of the linear drive mechanism 4, and improve the material turning efficiency. The movement of the telescopic cylinder 163 drives the connecting block 166 to move downward, and the movement of the connecting block 166 drives the rotating plate 167 to move downward, and the arc surface three of the rotating plate 167 separates from the surface in contact with the inclined surface one during the movement, so that the arc surface three is in contact with the inclined surface one. The comb plate 169 is in contact with the plane close to the inclined surface 1. When the rotating plate 167 moves, it is blocked by the comb plate 169 and rotates in the direction away from the abutment plate 168. The rotating plate 167 rotates and the contact surface with the abutment plate 168 is separated. At the same time, the rotating plate 167 stretches the No. 2 scroll spring during the rotation process. The No. 2 scroll spring is deformed due to the stretching. When the arc surface 3 and the contact surface of the comb plate 169 are separated, the deformed No. 2 scroll spring recovers and drives the rotating plate 167 to rotate to the initial position. The rotating plate 167 resumes contact with the abutment plate 168 during the rotation process. When the telescopic cylinder 163 is reset, it drives the connecting block 166 to move upward. The movement of the connecting block 166 drives the rotating plate 167 to move upward. The arc surface 3 contacts the inclined surface 1 during the movement. Since the rotating plate 167 cannot The comb plate 169 is moved in the direction of the contact plate 168 so that the arc surface 3 moves and applies a thrust to the inclined surface 1. The comb plate 169 is affected by the thrust and moves in the direction away from the connection block 166. The comb plate 169 moves and squeezes the spring piece 1610. The spring piece 1610 is squeezed and deformed. The deformed spring piece 1610 applies a reaction force to the comb plate 169 under the action of its own elasticity. The inclined surface 1 is affected by the reaction force and is in close contact with the arc surface 3. The comb plate 169 applies a continuously increasing resistance to the moving rotating plate 167. The moving speed of the rotating plate 167 is slowed down by the resistance. When the arc surface 3 and the inclined surface 1 are separated, the spring piece 1610 recovers and drives the comb plate 169 to move in the direction of the connection block 166. The inclined surface 1 re-contacts the arc surface 3 during the movement.The comb plate 169 applies intermittent resistance to the rotating plate 167, effectively ensuring that the contact plate 165 applies a stable thrust to the positioning rod 10, thereby reducing the safety risks caused by thrust fluctuations;

[0038] The arc surface 2 of the contact plate 165 moves downward and contacts the inclined surface 2. The arc surface 2 continues to move and applies a thrust to the inclined surface 2. The moving plate 172 is affected by the thrust and moves in a direction away from the arc surface 2. The moving plate 172 moves to squeeze the Z-shaped piece 173. The Z-shaped piece 173 is squeezed and deformed. At the same time, the moving plate 172 moves to drive the limiting rod 174 to move in a direction away from the arc surface 2. The limiting rod 174 passes through the limiting groove during the movement, so that the limiting rod 174 limits the rotation of the positioning rod 10. The positioning rod 10 is restricted, resulting in the rotation of the rotating frame 7 being restricted. When the contact plate 165 is limited and resets upward, the thrust exerted by the arc surface 2 on the inclined surface 2 gradually decreases, and the deformed Z-shaped piece 173 recovers under the action of its own elasticity. The recovery of the Z-shaped piece 173 drives the moving plate 172 to move in the direction close to the arc surface 2, and the movement of the moving plate 172 drives the limiting rod 174 to move in the direction close to the arc surface 2. During the movement, the limiting rod 174 separates from the surface in contact with the limiting groove, so that the limiting rod 174 automatically releases the rotation limit exerted on the positioning rod 10, and the positioning rod 10 is automatically rotationally limited by the limiting rod 174. To avoid the staff from operating the drive motor 6 incorrectly, which may cause the rotating frame 7 to collide with the conveyor belt, the moving plate 172 moves and drives the cylindrical rod 175 to move toward the limit rod 174. The movement of the cylindrical rod 175 drives the elastic sheet 176 to move toward the limit rod 174. The arc surface 4 of the elastic sheet 176 contacts the circumferential surface of the collision block 177 during the movement. The collision block 177 blocks the elastic sheet 176, causing the elastic sheet 176 to continue to move and deform. The deformed elastic sheet 176 stores energy under the action of its own elasticity, and the arc surface 4 When the surface in contact with the collision block 177 is separated, the elastic sheet 176 recovers under the action of elasticity, and the arc surface 4 contacts and collides with the second collision block 177 during the recovery process, so that the elastic sheet 176 and the collision block 177 intermittently collide to produce continuous vibration, and the collision block 177 transmits the vibration to the limit rod 174 through resonance, so that the limit rod 174 can smoothly enter the interior of the limit groove. The vibration generated by the intermittent collision between the elastic sheet 176 and the collision block 177 helps to avoid the limit rod 174 from getting stuck when entering the limit groove, thereby improving the smoothness of the work.

[0039] 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. A material turning mechanism for a petroleum drill pipe joint production line, comprising a load-bearing platform (1), characterized in that: A transmission mechanism (2) is fixedly mounted on the top of the load-bearing platform (1), and the transmission mechanism (2) comprises a mounting frame and a conveyor belt. The mounting frame is fixedly mounted on the top of the load-bearing platform (1), and the conveyor belt is arranged inside the mounting frame. A support frame (3) is fixedly mounted on a side of the load-bearing platform (1) away from the transmission mechanism (2), and a linear drive mechanism (4) is fixedly mounted on a side of the support frame (3) close to the transmission mechanism (2). A rectangular plate (5) is fixedly mounted on the output end of the linear drive mechanism (4), and the linear drive mechanism (4) further comprises a turning device, an auxiliary device and a locking device. The flipping device comprises a driving motor (6), a rotating frame (7), an electric push rod (8), a carrying plate (9), a positioning rod (10), a round rod (11), a rubber plate (12), a No. 1 spring (13), a rotating shaft (14) and a clamping plate (15); the driving motor (6) is fixedly inserted through the inner and outer walls of the rectangular plate (5); the rotating frame (7) is fixedly mounted on the output end of the driving motor (6); the electric push rod (8) is fixedly inserted through the inner and outer walls of the rotating frame (7); the carrying plate (9) is fixedly mounted The positioning rod (10) is mounted on the output end of the electric push rod (8), the positioning rod (10) is fixedly mounted on the surface of the rotating frame (7), the round rod (11) slides through the inner and outer walls of the rotating frame (7), the rubber plate (12) is fixedly mounted on the end of the round rod (11) away from the driving motor (6), the first spring (13) is arranged between the rubber plate (12) and the mounting plate (9), the rotating shaft (14) is rotatably mounted on the inner wall of the mounting plate (9), and the clamping plate (15) is fixedly mounted on the circumferential surface of the rotating shaft (14); A corrugation is provided on a surface of the rubber plate (12) away from the mounting plate (9), an arc surface is provided on an end of the rubber plate (12) close to the clamping plate (15), and an inclined surface is provided on an end of the clamping plate (15) close to the rubber plate (12); A first spiral spring is provided between the rotating shaft (14) and the mounting plate (9), a second corrugation is provided on a surface of the clamping plate (15) away from the mounting plate (9), and a limiting groove is provided on the circumferential surface of the positioning rod (10).

2. The material turning mechanism for a petroleum drill pipe joint production line according to claim 1 is characterized in that: The auxiliary device comprises a loading box (161), a hollow plate (162), a telescopic cylinder (163), a second spring (164), a contact plate (165), a connection block (166), a rotating plate (167), a stop plate (168), a comb plate (169) and a spring sheet (1610); the loading box (161) is fixedly installed on the top of the mounting frame; the hollow plate (162) is fixedly installed on the bottom of the inner wall of the loading box (161); the telescopic cylinder (163) is slidably installed on the top of the hollow plate (162); the second spring (164) is arranged between the telescopic cylinder (163) and the hollow plate (162); the contact plate (165) is fixedly installed on the telescopic cylinder (163) and the hollow plate (162); The hollow plate (162) is provided with a rectangular groove on one side of the hollow plate (162) and a second side of the hollow plate (162) and a second side of the hollow plate (162) and a second side of the hollow plate (162) are provided. The hollow plate (162) is provided with a rectangular groove on one side of the hollow plate (162) and a second ...

3. The material turning mechanism for the oil drill pipe joint production line according to claim 2 is characterized by: A second scroll spring is provided between the rotating plate (167) and the connecting block (166), and one end of the abutting plate (168) away from the connecting block (166) contacts the bottom of the rotating plate (167).

4. The material turning mechanism for a petroleum drill pipe joint production line according to claim 3 is characterized in that: An end of the rotating plate (167) away from the connecting block (166) is provided with an arc surface three, and a surface of the comb plate (169) away from the spring sheet (1610) is provided with an inclined surface one, and the inclined surface one is in contact with the arc surface three.

5. The material turning mechanism for a petroleum drill pipe joint production line according to claim 4 is characterized in that: The locking device comprises a hollow frame (171), a movable plate (172), a Z-shaped sheet (173), a limiting rod (174), a cylindrical rod (175), an elastic sheet (176) and a plurality of collision blocks (177); the hollow frame (171) is fixedly mounted on the inner wall of the loading box (161); the movable plate (172) is slidably mounted inside the hollow frame (171); the Z-shaped sheet (173) is arranged between the movable plate (172) and the hollow frame (171); the limiting rod (174) is a cylindrical rod (175), an elastic sheet (176) and a plurality of collision blocks (177); The rod (174) is fixedly mounted on a side of the moving plate (172) away from the second arc surface, the cylindrical rod (175) is fixedly mounted on the top of the moving plate (172), the cylindrical rod (175) slides through the top of the hollow frame (171), the elastic sheet (176) is fixedly mounted on the circumferential surface of the cylindrical rod (175), a plurality of collision blocks (177) are fixedly mounted on the top of the hollow frame (171), and the moving plate (172) is provided with a second inclined surface on a side close to the second arc surface.

6. The material turning mechanism for a petroleum drill pipe joint production line according to claim 5, characterized in that: The plurality of collision blocks (177) are equidistantly distributed on the top of the hollow frame (171), and a curved surface (4) is provided on a surface of the elastic sheet (176) away from the collision blocks (177).

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