Positioning device for large thermal insulation pipe

Abstract

The positioning device comprises a supporting frame, a buffering frame is fixedly arranged on the supporting frame, connecting plates are fixedly arranged at the two ends of the buffering frame in the width direction, sliding grooves are formed in the connecting plates in the length direction, tensioning blocks are arranged on the connecting plates, and the tensioning blocks are located in the sliding grooves and are in sliding connection with the connecting plates; a first tensioning spring is fixedly arranged at the upper end of the tensioning block, the supporting frame is provided with a hoisting hook used for hoisting a steel pipe, the lower end of the hoisting hook is rotationally connected with the first tensioning spring, a second tensioning spring is arranged in the sliding groove, and the two connecting ends of the second tensioning spring are fixedly connected with the tensioning block and the connecting plate correspondingly. The supporting frame is provided with a hoisting assembly for driving the hoisting hook to move in the height direction and the width direction. According to the hoisting device, the probability of swinging of the large steel pipe during hoisting is reduced, and the safety in the hoisting process of the large steel pipe is improved conveniently.

Description

Technical Field

[0001] The utility model relates to the field of thermal insulation pipe production equipment, in particular to a positioning device for large thermal insulation pipes. Background Art

[0002] Insulated pipe is the abbreviation of insulated pipe. Insulated pipe is used for the transportation of liquid, gas and other media, and is used for thermal insulation of pipelines in the fields of petroleum, chemical industry, aerospace, hot spring, military, central heating, central air conditioning, municipal engineering, etc. Insulated pipe is usually composed of working steel pipe, protective sleeve and thermal insulation filling layer. Large-scale insulated pipe usually needs to hoist the tooling steel pipe to the positioning device, and then use the transportation device to put the protective sleeve on the outside of the working steel pipe, and then use the positioning device to adjust the protective sleeve and the steel pipe to be coaxial, and finally fill the thermal insulation filling layer between the working steel pipe and the protective sleeve.

[0003] Regarding the above-mentioned related technologies, large steel pipes are usually hoisted by gantry cranes during the lifting process. However, during the hoisting process, large steel pipes are affected by the hoisting speed and hoisting position, and are prone to deflection and shaking during transportation. Large steel pipes are large in size and heavy in weight. Deflection and shaking of large steel pipes can easily cause damage to equipment or personnel. Utility Model Content

[0004] In order to improve the safety of the large steel pipe hoisting process, the present application provides a positioning device for large insulation pipes.

[0005] The present application provides a positioning device for a large thermal insulation pipe, which adopts the following technical solution:

[0006] A positioning device for large-scale thermal insulation pipes comprises a support frame, the support frame is fixedly provided with a buffer frame, connecting plates are fixedly provided at both ends of the buffer frame in the width direction, a slide groove is opened in the connecting plate in the length direction, a tensioning block is provided on the connecting plate, the tensioning block is located in the slide groove and is slidably connected to the connecting plate; a first tensioning spring is fixedly provided on the upper end of the tensioning block, the support frame is provided with a lifting hook for lifting steel pipes, the lower end of the lifting hook is rotatably connected to the first tensioning spring, a second tensioning spring is provided in the slide groove, the two connecting ends of the second tensioning spring are respectively fixedly connected to the tensioning block and the connecting plate, and the support frame is provided with a lifting component for driving the lifting hook to move in the height direction and the width direction.

[0007] By adopting the above technical scheme, when hoisting the large steel pipe, the hoisting hook is hooked on the large steel pipe, and the hoisting mechanism first lifts the large steel pipe in the height direction. At this time, the hoisting hook and the tensioning block cooperate to stretch the first tensioning spring. The reaction force of the first tensioning spring tensions the hoisting hook to ensure the stability of the large steel pipe in the vertical direction. After the hoisting mechanism transports the large steel pipe to the preset height through the hoisting hook, the hoisting mechanism drives the hoisting hook to move in the horizontal direction. The hoisting hook pulls the tensioning block to slide synchronously through the first tensioning spring, and the tensioning block cooperates with the connecting plate to squeeze the second tensioning spring, thereby ensuring the stability of the large steel pipe in the horizontal direction. This is beneficial to reduce the probability of shaking of the large steel pipe during hoisting, and is convenient for improving the safety of the large steel pipe hoisting process.

[0008] Optionally, the lifting assembly includes a lifting rail, a lifting slider matched with the lifting rail, a winding wheel, a steel cable, a lifting motor and a driving mechanism for driving the lifting slider to move; the lifting rail is fixedly connected to the support frame, the lifting slider is slidably connected to the lifting rail, the lifting motor is fixedly connected to the lifting slider, the output shaft of the lifting motor passes through the lifting slider and is fixedly connected to the winding wheel, the steel cable is fixedly connected to the winding wheel, and the end of the steel cable facing away from the winding wheel is fixedly connected to the lifting hook.

[0009] By adopting the above technical solution, when the lifting hook needs to move in the vertical direction, the output shaft of the lifting motor drives the winding wheel to rotate, which can realize the tightening and release of the steel cable, thereby facilitating the movement of the lifting hook in the height direction. When the lifting hook needs to move in the horizontal direction, the lifting rail limits the lifting slider, so that the driving mechanism can drive the lifting slider to move along the length direction of the lifting rail, thereby achieving the effect of driving the lifting hook to move in the horizontal direction.

[0010] Optionally, the driving mechanism includes a driving motor, a first synchronous pulley, a second synchronous pulley, a synchronous belt and two driving screws. The driving motor is fixedly connected to the lifting slide rail, the output shaft of the driving motor passes through the lifting slide rail and is coaxially fixedly connected to the corresponding driving screw, the two driving screws are respectively passed through the corresponding lifting sliders and are threadedly connected to the corresponding lifting sliders, the first synchronous pulley and the second synchronous pulley are respectively coaxially fixedly connected to the corresponding driving screw, and the first synchronous pulley and the second synchronous pulley are both connected to the synchronous belt.

[0011] By adopting the above technical solution, the output shaft of the driving motor drives the connected driving screw to rotate, so that the driving screw drives the connected first synchronous pulley to rotate, and the first synchronous pulley drives the second synchronous pulley to rotate together through the synchronous belt, so that the two driving screws rotate synchronously, which is convenient for achieving the effect of driving the two lifting sliders to move at the same time.

[0012] Optionally, a guide rod is fixedly provided on the connecting plate. The guide rod is arranged in the sliding groove and fixedly connected to the connecting plate at both axial ends. The guide rod penetrates through the tensioning block and is slidably connected to the tensioning block. The second tension spring is sleeved on the guide rod.

[0013] By adopting the above technical solution, the guide rod can limit the tensioning block and the second tension spring, which can not only improve the stability of the movement of the tensioning block, but also reduce the probability of the second tension spring being bent and deformed after being compressed, ensuring the tensioning effect of the second tension spring on the lifting hook.

[0014] Optionally, a first positioning frame for supporting the steel pipe and the casing is fixedly provided at the upper end of the support frame. A plurality of groups of support components are fixedly arranged along the axial direction of the first positioning frame, and a plurality of groups of support components are arranged along the circumferential direction of the first positioning frame; a second positioning frame is rotatably connected to the first positioning frame, and the support frame is provided with a rotating component for driving the second positioning frame to rotate. A plurality of groups of support components are arranged along the axial direction of the second positioning frame, and a plurality of groups of support components are arranged along the circumferential direction of the second positioning frame; the support component includes a support rod and a support wheel, the support wheel is rotatably connected to the support rod, and an avoidance groove adapted to the support wheel is provided on the support rod.

[0015] By adopting the above technical solution, after the casing enters the second positioning frame, the rotating component drives the second positioning frame to rotate towards the first positioning frame, so that the second positioning frame abuts against the first positioning frame. The first positioning frame and the second positioning frame cooperate to support and transport the casing, and insert the large steel pipe into the casing, facilitating the effect of positioning the casing.

[0016] Optionally, the rotating component includes a first hydraulic cylinder and a driving rod. The first hydraulic cylinder is rotatably connected to the support frame, the output shaft of the first hydraulic cylinder is rotatably connected to the driving rod, and the driving rod is fixedly connected to the second positioning frame along the length direction of the second positioning frame.

[0017] By adopting the above technical solution, after the lifting hook hoists the large steel pipe onto the first positioning frame, the output end of the first hydraulic cylinder extends to push the driving rod to move, and the driving rod pushes the second positioning frame to rotate towards the second driving frame, which is beneficial to realizing the effect of driving the second positioning frame to move.

[0018] Optionally, a buffer rubber pad is fixedly provided at one end of the first positioning frame close to the second positioning frame, and an anti-slip rubber pad is fixedly provided along the circumference of the support wheel.

[0019] By adopting the above technical solution, the buffer pad is beneficial to reducing the impact between the second positioning frame and the first positioning frame, improving the service life of the first positioning frame and the second positioning frame. The anti-slip rubber pad can increase the roughness of the contact surface between the support wheel and the casing, thereby enhancing the friction between the support wheel and the casing, which is beneficial to reducing the probability of the casing slipping during transportation.

[0020] Optionally, a plurality of groups of adjusting components for adjusting the steel pipes are provided along the length direction of the first positioning frame. The adjusting component includes an adjusting hydraulic cylinder and an adjusting block. The adjusting hydraulic cylinder is fixedly connected to the first positioning frame, the output end of the adjusting hydraulic cylinder is fixedly connected to the adjusting block, and an adjusting groove adapted to the steel pipe is formed at one end of the adjusting block away from the adjusting hydraulic cylinder.

[0021] By adopting the above technical solution, the lifting hook hoists the large steel pipe onto the adjusting block, so that the adjusting block abuts against the large steel pipe through the adjusting groove. After the large steel pipe is inserted into the sleeve, the output end of the adjusting hydraulic cylinder extends to push the large steel pipe to move upward, adjusting the height of the large steel pipe to make the steel pipe coaxial with the sleeve, which is convenient for achieving the effect of positioning the steel pipe.

[0022] In summary, the present application includes at least one of the following beneficial technical effects of the positioning device for large insulating pipes:

[0023] 1. When hoisting a large steel pipe, the lifting hook hooks the large steel pipe, and the hoisting mechanism first hoists the large steel pipe along the height direction. At this time, the lifting hook and the tensioning block cooperate to stretch the first tension spring, and the reaction force of the first tension spring tensions the lifting hook, ensuring the smoothness of the large steel pipe moving in the vertical direction. After the hoisting mechanism transports the large steel pipe to the preset height through the lifting hook, the hoisting mechanism drives the lifting hook to move horizontally. The lifting hook pulls the tensioning block to slide synchronously through the first tension spring, and the tensioning block and the connecting plate cooperate to squeeze the second tension spring, thereby ensuring the stability of the large steel pipe moving in the horizontal direction, which is beneficial to reducing the probability of the large steel pipe shaking during hoisting and facilitating the improvement of the safety of the large steel pipe hoisting process;

[0024] 2. When the lifting hook needs to move in the vertical direction, the output shaft of the hoisting motor drives the wire winding wheel to rotate, which can realize the winding and release of the steel cable, facilitating the effect of the lifting hook moving in the height direction. When the lifting hook needs to move in the horizontal direction, the hoisting slide rail limits the hoisting slider, so that the driving mechanism can drive the hoisting slider to move along the length direction of the hoisting slide rail, thereby realizing the effect of driving the lifting hook to move in the horizontal direction;

[0025] 3. The guide rod can limit the tensioning block and the second tension spring, which can not only improve the stability of the tensioning block movement, but also reduce the probability of the second tension spring being bent and deformed after being compressed, ensuring the tensioning effect of the second tension spring on the lifting hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an overall structural schematic diagram of a positioning device for large insulating pipes.

[0027] Figure 2 A schematic diagram highlighting the positions of the hoisting slider and the wire winding wheel.

[0028] Figure 3 Schematic diagram highlighting the position of the second tension spring and the guide rod.

[0029] Figure 4 Schematic diagram highlighting the position of the first synchronous pulley and the second synchronous pulley

[0030] Explanation of reference numerals: 1, support frame; 2, buffer rack; 3, lifting hook; 4, lifting assembly; 5, drive mechanism; 6, support assembly; 7, rotating assembly; 8, adjusting assembly; 11, first positioning frame; 12, second positioning frame; 13, buffer rubber pad; 14, anti-slip rubber pad; 21, connecting plate; 22, sliding groove; 23, tensioning block; 24, first tension spring; 25, second tension spring; 26, guide rod; 41, lifting slide rail; 42, lifting slider; 43, wire winding wheel; 44, steel cable; 45, lifting motor; 51, drive motor; 52, first synchronous pulley; 53, second synchronous pulley; 54, synchronous belt; 55, drive lead screw; 61, support rod; 62, support wheel; 63, avoidance groove; 71, first hydraulic cylinder; 72, drive rod; 81, adjusting hydraulic cylinder; 82, adjusting block; 83, adjusting groove. Detailed implementation manners

[0031] The following further describes the present application in detail with reference to all the drawings.

[0032] An embodiment of the present application discloses a positioning device for large-scale heat-insulating pipes.

[0033] Referring to Figure 1 and Figure 2 , a positioning device for large-scale heat-insulating pipes includes a support frame 1, on which a buffer rack 2 is fixedly arranged. An operator places the large-scale steel pipe to be lifted on the buffer rack 2. The support frame 1 is provided with a lifting assembly 4, which includes a lifting slide rail 41, a lifting slider 42 adapted to the lifting slide rail 41, a wire winding wheel 43, a steel cable 44, and a lifting motor 45. The lifting slide rail 41 is fixedly connected to the support frame 1, and the lifting slider 42 is slidably connected to the lifting slide rail 41.

[0034] Referring to Figure 1 and Figure 2 , the lifting motor 45 is fixedly connected to the lifting slider 42. When the large-scale steel pipe needs to be lifted, the output shaft of the lifting motor 45 rotates. The output shaft of the lifting motor 45 passes through the lifting slider 42 and is fixedly connected to the wire winding wheel 43. The output shaft of the lifting motor 45 drives the wire winding wheel 43 to rotate. The steel cable 44 is fixedly connected to the wire winding wheel 43. The wire winding wheel 43 releases the steel cable 44. The support frame 1 is provided with a lifting hook 3. One end of the steel cable 44 away from the wire winding wheel 43 is fixedly connected to the lifting hook 3. As the steel cable 44 is released, the lifting hook 3 gradually moves downward under the action of gravity until it reaches the position of the steel pipe to be lifted. Thus, the operator can hook the lifting hook 3 onto the large-scale steel pipe to be lifted.

[0035] Refer to Figure 1 and Figure 3 , at both ends of the buffer rack 2 in the width direction, connecting plates 21 are fixedly provided. The connecting plates 21 are provided with sliding grooves 22 in the length direction. A tensioning block 23 is provided on the connecting plate 21. The tensioning block 23 is located in the sliding groove 22 and is slidably connected to the connecting plate 21; a first tension spring 24 is fixedly provided at the upper end of the tensioning block 23, and the lower end of the lifting hook 3 is rotatably connected to the first tension spring 24. When hoisting a large steel pipe, the output shaft of the hoisting motor 45 rotates to drive the wire winding wheel 43 to rotate. The wire winding wheel 43 winds the steel cable 44, and the lifting hook 3 moves upward under the pulling of the steel cable 44. At the same time, the lifting hook 3 hoists and lifts the large steel pipe.

[0036] Refer to Figure 1 and Figure 3 , during the rising process of the lifting hook 3, the lifting hook 3 cooperates with the tensioning block 23 to stretch the first tension spring 24, causing the first tension spring 24 to undergo elastic deformation. The reaction force of the first tension spring 24 tensions the lifting hook 3, ensuring the smooth movement of the large steel pipe in the vertical direction.

[0037] Refer to Figure 2 and Figure 4 , the hoisting assembly 4 further includes a driving mechanism 5. The driving mechanism 5 includes a driving motor 51, a first synchronous pulley 52, a second synchronous pulley 53, a synchronous belt 54, and two driving lead screws 55. The driving motor 51 is fixedly connected to the support frame 1. The output shaft of the driving motor 51 passes through the hoisting slide rail 41 and is coaxially and fixedly connected to the corresponding driving lead screw 55. The output shaft of the driving motor 51 drives the connected driving lead screw 55 to rotate.

[0038] Refer to Figure 2 and Figure 4 , the first synchronous pulley 52 and the second synchronous pulley 53 are respectively coaxially and fixedly connected to the corresponding driving lead screws 55. The two driving lead screws 55 respectively pass through the corresponding hoisting sliders 42 and are threadedly connected to the corresponding hoisting sliders 42. Both the first synchronous belt pulley 52 and the second synchronous belt pulley 53 are connected to the synchronous belt 54. After the lifting hook 3 transports the large steel pipe to the preset height, the first synchronous pulley 52 drives the second synchronous pulley 53 to rotate together through the synchronous belt 54.

[0039] Refer to Figure 2 and Figure 4 , the first synchronous pulley 52 and the second synchronous pulley 53 simultaneously drive the two driving lead screws 55 to rotate. The two driving lead screws 55 synchronously drive the hoisting sliders 42 to slide on the hoisting slide rail 41, and then pull the large steel pipe to move horizontally through the lifting hook 3. The lifting hook 3 pulls the tensioning block 23 to move in the sliding groove 22 through the first tension spring 24.

[0040] Reference Figure 2 and Figure 3 A second tensioning spring 25 is provided in the slide groove 22, and the two connecting ends of the second tensioning spring 25 are fixedly connected to the tensioning block 23 and the connecting plate 21 respectively. The tensioning block 23 and the connecting plate 21 cooperate to squeeze the second tensioning spring 25, thereby ensuring the stability of the horizontal movement of the large steel pipe, which is beneficial to reduce the probability of shaking of the large steel pipe during hoisting, and is convenient for improving the safety of the large steel pipe hoisting process.

[0041] Reference Figure 2 and Figure 3 The connecting plate 21 is fixed with a guide rod 26, which is arranged in the slide groove 22 and fixedly connected to the connecting plate 21 at both ends along the axial direction. The guide rod 26 passes through the tension block 23 and is slidably connected to the tension block 23. The guide rod 26 can limit the tension block 23 to improve the stability of the movement of the tension block 23. The second tensioning spring 25 is sleeved on the guide rod 26. The guide rod 26 can also limit the second tensioning spring 25, thereby reducing the probability of bending and deformation of the second tensioning spring 25 after being compressed, and ensuring the tensioning effect of the second tensioning spring 25 on the lifting hook 3.

[0042] Reference Figure 1 and Figure 2 A first positioning frame 11 for supporting the steel pipe and the casing is fixedly provided at the upper end of the support frame 1. The first positioning frame 11 is provided with a plurality of adjustment components 8 for adjusting the steel pipe along the length direction. The adjustment components 8 include an adjustment hydraulic cylinder 81 and an adjustment block 82. The adjustment hydraulic cylinder 81 is fixedly connected to the first positioning frame 11. When the lifting hook 3 lifts the large steel pipe, the output end of the adjustment hydraulic cylinder 81 extends to a preset length.

[0043] Reference Figure 1 and Figure 2 The output end of the adjusting hydraulic cylinder 81 is fixedly connected to the adjusting block 82, and the output end of the adjusting hydraulic cylinder 81 pushes the adjusting block 82 to a preset height. An adjusting groove 83 adapted to the steel pipe is provided at one end of the adjusting block 82 away from the adjusting hydraulic cylinder 81. The hoisting slide block 42 transports the large steel pipe to the adjusting block 82 through the hoisting assembly 4, so that the adjusting block 82 supports the large steel pipe through the adjusting groove 83.

[0044] Reference Figure 1 and Figure 2, a number of groups of support components 6 are fixedly arranged along the axial direction of the first positioning frame 11, and a number of groups of support components 6 are arranged along the circumferential direction of the first positioning frame 11; the support component 6 includes a support rod 61 and a support wheel 62, the support wheel 62 is rotatably connected to the support rod 61, and the support rod 61 is provided with an avoidance groove 63 adapted to the support wheel 62. The sleeve is transported to the first positioning frame 11 by an external transportation component, so that the support rod 61 and the support wheel 62 cooperate to support and position the sleeve.

[0045] Refer to Figure 1 and Figure 2 , when the external transportation component pushes the sleeve to move, the support wheel 62 cooperates to transport the sleeve, so that the large steel pipe enters the sleeve. The support wheel 62 is fixedly provided with an anti-slip rubber pad 14 along the circumferential direction. The anti-slip rubber pad 14 can increase the roughness of the contact surface between the support wheel 62 and the sleeve, thereby enhancing the friction force between the support wheel 62 and the sleeve, and reducing the probability of the sleeve slipping during transportation.

[0046] Refer to Figure 1 and Figure 2 , after one end of the large steel pipe close to the sleeve enters the sleeve, the output end of the adjusting hydraulic cylinder 81 close to the sleeve contracts, so that the sleeve can continue to move to avoid interference between the adjusting block 82 and the sleeve. After the sleeve completely passes through the adjusting block 82, the output end of the adjusting hydraulic cylinder 81 extends, so that the adjusting block 82 re-contacts the large steel pipe through the adjusting groove 83, thereby supporting the large steel pipe.

[0047] Refer to Figure 1 and Figure 2 , the first positioning frame 11 is rotatably connected to a second positioning frame 12, and the support frame 1 is provided with a rotating component 7 for driving the second positioning frame 12 to rotate. The rotating component 7 includes a first hydraulic cylinder 71 and a driving rod 72. After the sleeve moves to a preset position, the first hydraulic cylinder 71 is rotatably connected to the support frame 1, and the output end of the first hydraulic cylinder 71 extends. The output shaft of the first hydraulic cylinder 71 is rotatably connected to the driving rod 72, and the output end of the first hydraulic cylinder 71 pushes the driving rod 72 to move.

[0048] Refer to Figure 1 and Figure 2 , the driving rod 72 is fixedly connected to the second positioning frame 12 along the length direction of the second positioning frame 12, and the driving rod 72 further pushes the second positioning frame 12 to rotate towards the direction close to the first positioning frame 11, so that the second positioning frame 12 contacts the first positioning frame 11. A buffer rubber pad 13 is fixedly arranged at one end of the first positioning frame 11 close to the second positioning frame 12. The buffer pad is beneficial to reducing the impact between the second positioning frame 12 and the first positioning frame 11 and improving the service life of the first positioning frame 11 and the second positioning frame 12.

[0049] Refer to Figure 1 and Figure 2, A number of sets of support components 6 are arranged axially along the second positioning frame 12, and a number of sets of support components 6 are arranged circumferentially along the second positioning frame 12; the support components 6 on the first positioning frame 11 and the second positioning frame 12 cooperate together to achieve the effect of positioning the casing. After the positioning of the casing is completed, the adjusting hydraulic cylinder 81 lifts the large steel pipe through the adjusting block 82 to make the large steel pipe coaxial with the casing, achieving the positioning effect of the large steel pipe.

[0050] The implementation principle of the positioning device for a large thermal insulation pipe in an embodiment of the present application is as follows: When it is necessary to hoist a large steel pipe, the output shaft of the hoisting motor 45 drives the wire winding wheel 43 to rotate. The steel cable 44 is fixedly connected to the wire winding wheel 43, and the wire winding wheel 43 releases the steel cable 44. The hoisting hook 3 gradually moves downward under the action of gravity until it reaches the steel pipe to be hoisted. This enables the operator to hook the hoisting hook 3 onto the large steel pipe to be hoisted. When hoisting the large steel pipe, the output shaft of the hoisting motor 45 rotates in reverse to drive the wire winding wheel 43 to rotate. The wire winding wheel 43 winds up the steel cable 44, and the hoisting hook 3 moves upward under the pulling of the steel cable 44. At the same time, the hoisting hook 3 hoists and lifts the large steel pipe.

[0051] During the upward movement of the hoisting hook 3, the hoisting hook 3 cooperates with the tensioning block 23 to stretch the first tension spring 24, causing the first tension spring 24 to undergo elastic deformation. The reaction force of the first tension spring 24 tensions the hoisting hook 3, ensuring the smooth movement of the large steel pipe in the vertical direction. After the hoisting hook 3 transports the large steel pipe to the preset height, the first synchronous belt 54 wheel 52 drives the second synchronous belt 54 wheel 53 to rotate together through the synchronous belt 54. The first synchronous belt 54 wheel 52 and the second synchronous belt 54 wheel 53 simultaneously drive two drive lead screws 55 to rotate. The two drive lead screws 55 synchronously drive the hoisting slider 42 to slide on the hoisting slide rail 41, and then pull the large steel pipe to move horizontally through the hoisting hook 3. This causes the hoisting hook 3 to pull the tensioning block 23 to move in the chute 22 through the first tension spring 24.

[0052] The tensioning block 23 and the connecting plate 21 cooperate to squeeze the second tension spring 25, thereby ensuring the stability of the large steel pipe moving in the horizontal direction, which is conducive to reducing the probability of the large steel pipe shaking during hoisting and facilitating the improvement of the safety of the large steel pipe hoisting process.

[0053] The above are all preferred embodiments of the present application. Without limiting the protection scope of the present application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A positioning device for large insulating pipes, comprising a support frame (1), characterized in that: The support frame (1) is fixedly provided with a buffer frame (2), and connecting plates (21) are fixedly provided at both ends of the buffer frame (2) along the width direction, and a slide groove (22) is opened on the connecting plate (21) along the length direction, and a tensioning block (23) is provided on the connecting plate (21), and the tensioning block (23) is located in the slide groove (22) and is slidably connected to the connecting plate (21); a first tensioning spring (24) is fixedly provided at the upper end of the tensioning block (23), and the support frame (1) is provided with a lifting hook (3) for lifting the steel pipe, and the lower end of the lifting hook (3) is rotatably connected to the first tensioning spring (24), and a second tensioning spring (25) is provided in the slide groove (22), and the two connecting ends of the second tensioning spring (25) are respectively fixedly connected to the tensioning block (23) and the connecting plate (21), and the support frame (1) is provided with a lifting component (4) for driving the lifting hook (3) to move along the height direction and the width direction.

2. The positioning device for a large insulating pipe according to claim 1, characterized in that: The hoisting assembly (4) comprises a hoisting rail (41), a hoisting slider (42) matched with the hoisting rail (41), a winding wheel (43), a steel cable (44), a hoisting motor (45) and a driving mechanism (5) for driving the hoisting slider (42) to move; the hoisting rail (41) is fixedly connected to the support frame (1), the hoisting slider (42) is slidably connected to the hoisting rail (41), the hoisting motor (45) is fixedly connected to the hoisting slider (42), the output shaft of the hoisting motor (45) passes through the hoisting slider (42) and is fixedly connected to the winding wheel (43), the steel cable (44) is fixedly connected to the winding wheel (43), and the end of the steel cable (44) away from the winding wheel (43) is fixedly connected to the hoisting hook (3).

3. The positioning device for a large insulating pipe according to claim 2, characterized in that: The driving mechanism (5) comprises a driving motor (51), a first synchronous pulley (52), a second synchronous pulley (53), a synchronous belt (54) and two driving screw rods (55); the driving motor (51) is fixedly connected to the hoisting slide rail (41); the output shaft of the driving motor (51) passes through the hoisting slide rail (41) and is coaxially fixedly connected to the corresponding driving screw rod (55); the two driving screw rods (55) respectively pass through the corresponding hoisting slider (42) and are threadedly connected to the corresponding hoisting slider (42); the first synchronous pulley (52) and the second synchronous pulley (53) are respectively coaxially fixedly connected to the corresponding driving screw rod (55); and the first synchronous pulley (52) and the second synchronous pulley (53) are both connected to the synchronous belt (54).

4. The positioning device for a large insulating pipe according to claim 1, characterized in that: The connecting plate (21) is fixedly provided with a guide rod (26), which is arranged in the slide groove (22) and is fixedly connected to the connecting plate (21) at both ends along the axial direction, and the guide rod (26) passes through the tensioning block (23) and is slidably connected to the tensioning block (23), and the second tensioning spring (25) is sleeved on the guide rod (26).

5. The positioning device for a large insulating pipe according to claim 1, characterized in that: A first positioning frame (11) for supporting steel pipes and sleeves is fixedly arranged at the upper end of the support frame (1). A plurality of groups of support components (6) are fixedly arranged along the axial direction of the first positioning frame (11), and a plurality of groups of support components (6) are arranged along the circumferential direction of the first positioning frame (11); the first positioning frame (11) is rotatably connected to a second positioning frame (12), and the support frame (1) is provided with a rotating component (7) for driving the second positioning frame (12) to rotate. A plurality of groups of support components (6) are arranged along the axial direction of the second positioning frame (12), and a plurality of groups of support components (6) are arranged along the circumferential direction of the second positioning frame (12); the support component (6) includes a support rod (61) and a support wheel (62), the support wheel (62) is rotatably connected to the support rod (61), and an avoidance groove (63) adapted to the support wheel (62) is formed in the support rod (61).

6. The positioning device for a large insulating pipe according to claim 5, wherein: The rotating component (7) includes a first hydraulic cylinder (71) and a driving rod (72). The first hydraulic cylinder (71) is rotatably connected to the support frame (1), the output shaft of the first hydraulic cylinder (71) is rotatably connected to the driving rod (72), and the driving rod (72) is fixedly connected to the second positioning frame (12) along the length direction of the second positioning frame (12).

7. A positioning device for a large insulating pipe according to claim 5, characterized in that: A buffer rubber pad (13) is fixedly arranged at one end of the first positioning frame (11) close to the second positioning frame (12), and an anti-slip rubber pad (14) is fixedly arranged along the circumferential direction of the support wheel (62).

8. The positioning device for a large thermal insulation pipe according to claim 5, wherein: A plurality of groups of adjusting components (8) for adjusting the steel pipe are arranged along the length direction of the first positioning frame (11). The adjusting component (8) includes an adjusting hydraulic cylinder (81) and an adjusting block (82). The adjusting hydraulic cylinder (81) is fixedly connected to the first positioning frame (11), the output end of the adjusting hydraulic cylinder (81) is fixedly connected to the adjusting block (82), and an adjusting groove (83) adapted to the steel pipe is formed at one end of the adjusting block (82) facing away from the adjusting hydraulic cylinder (81).

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