CN209774426U - Inner supporting structure of large-diameter steel pipe - Google Patents

Abstract

The utility model relates to an inner support structure of a large-diameter steel pipe, which comprises a steel pipe body, an arc-shaped block for supporting the steel pipe body is abutted on the inner wall of the steel pipe body, and an adjustment box is arranged at the center of the steel pipe body , the adjustment box is provided with a diameter adjustment assembly, the diameter adjustment assembly includes a screw threaded through the adjustment box along the height direction and a sleeve respectively sleeved on both ends of the screw rod and threaded with the screw rod, the screw rod The screw threads at both ends rotate in opposite directions, the end of the sleeve away from the screw rod is fixed to the inner wall of the concave end of the arc block, and the adjustment box is provided with a driving assembly for driving the screw rod to rotate, the adjustment box and The sleeve is provided with a limit assembly that limits the rotation of the sleeve. The utility model adjusts the support diameter of the inner support structure, so that it is suitable for the support of large-diameter steel pipes with different pipe diameter specifications.

Description

A large-diameter steel pipe inner support structure

technical field

The utility model relates to the technical field of steel pipe processing, in particular to an inner support structure of a large-diameter steel pipe.

Background technique

Steel pipe bending usually uses a pipe bender, the steel pipe is placed on the pipe bender, and the pipe bender applies a bending moment to the steel pipe, so that the steel pipe is partially deformed to form a certain angle to achieve the purpose of bending. However, large-diameter steel pipes are prone to deformation of the nozzle during pipe bending, and subsequent corrections must be made to the deformed nozzle. Correction may bring certain defects, increase the number of work links, affect the quality of the steel pipe, and reduce work efficiency. At the same time, large-diameter steel pipes will also experience deformation of the steel pipe nozzle during normalizing and tempering heat treatment, and some even cannot be corrected due to excessive deformation of the steel pipe nozzle. Moreover, during the storage and transportation of large-diameter steel pipes, due to their own gravity, they will also deform to varying degrees, resulting in deviations in the roundness of the steel pipes, which seriously affect the follow-up work of the steel pipes. For example, the two steel pipes cannot be connected, affecting production. efficiency.

At present, the Chinese utility model patent with the notification number CN202224486U discloses a steel pipe inner support structure, including an upper support structure and a lower support structure below it, and the upper support structure includes an upper base plate and an upper support rod fixed above the upper base plate , the lower support structure includes a lower base plate and a lower support rod fixed below the lower base plate, the upper base plate and the lower base plate are connected together by a pin shaft, and the top end of the pin shaft is vertically welded to the bottom surface of the upper base plate In the middle part, the middle part of the lower bottom plate is provided with a pin shaft hole matched with the pin shaft.

The above-mentioned existing technical solutions have the following defects: the diameter of the inner support structure in the above-mentioned solution cannot be adjusted, and it is only suitable for the support of large-diameter steel pipes with specific pipe diameters, not suitable for the inner support of large-diameter steel pipes of different specifications, and the scope of application is small , low reuse rate.

Utility model content

The purpose of the utility model is to provide an inner support structure of a large-diameter steel pipe, which is suitable for supporting large-diameter steel pipes with different pipe diameters and specifications by adjusting the support diameter of the inner support structure.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a large-diameter steel pipe inner support structure, including a steel pipe body, the inner wall of the steel pipe body is abutted with an arc-shaped block for supporting the steel pipe body, An adjustment box is provided at the center of the steel pipe body, and a diameter adjustment assembly is arranged on the adjustment box. The diameter adjustment assembly includes a screw that runs through the adjustment box along the height direction and is respectively sleeved on both ends of the screw. And the sleeve threaded with the screw rod, the screw threads at both ends of the screw rod are in the opposite direction, the end of the sleeve away from the screw rod is fixed to the inner wall of the concave end of the arc block, and the regulating box is provided with a device for driving the The drive assembly for the rotation of the screw, the adjustment box and the sleeve are provided with a limit assembly to limit the rotation of the sleeve.

By adopting the above technical scheme, the drive assembly is started to drive the screw to rotate, and the sleeve is restricted by the limit assembly to convert the rotational force of the screw into its own slippage along the length of the screw. , when the screw is turned, the sleeves at both ends move synchronously away from or close to the adjustment box, so as to realize the adjustment of the support diameter of the arc block, so that the inner support structure is suitable for large-diameter steel pipes with different pipe diameters , thereby improving the scope of application of the inner support structure.

The utility model is further configured as follows: the limit assembly includes a telescopic rod that is fixedly connected to the side wall around the sleeve and slides with the sleeve, and a telescopic rod that is slidably connected to the inside of the telescopic rod and whose end is fixed to the outer wall of the adjustment box the fixed rod.

By adopting the above technical solution, the setting of the telescopic rod and the fixed rod can provide support for the sleeve on the one hand and improve the stability of the sleeve sliding without affecting the sliding of the sleeve; Position, to prevent the sleeve from following the rotation of the screw and affecting the sliding of the sleeve along the length of the screw, thereby avoiding affecting the adjustment of the support diameter of the inner support structure.

The utility model is further set as: the inner wall of the telescopic rod is provided with a chute whose length direction is consistent with the length direction of the telescopic rod, and the peripheral side wall of the fixed rod is fixedly connected with a chute that slides with the chute. Fitting slider.

By adopting the above technical solution, the setting of the chute and the sliding block is used to limit the sliding range of the sleeve, so as to prevent the sleeve from slipping excessively and falling off the screw rod, thereby avoiding affecting the supporting effect of the arc block.

The utility model is further configured as follows: the drive assembly includes a driven bevel gear sleeved and fixed in the middle of the screw rod, a driving bevel gear meshed with the driven bevel gear, and a rotating rod sleeved and fixed in the center of the driving bevel gear.

By adopting the above-mentioned technical solution, turning the rotating rod, the driving bevel gear drives the driven bevel gear to rotate, thereby driving the screw to rotate. Since the direct rotation of the screw is cumbersome to operate, the setting of the drive assembly improves the convenience of screw rotation.

The utility model is further configured as follows: a support rod is fixedly connected to the outer wall of the adjustment box, and the support rod is provided with a piercing opening which is rotatably connected with the rotation rod.

By adopting the above technical solution, the setting of the supporting rod is used to provide support for the rotating rod, so as to prevent the rotating rod from moving down due to its own gravity, thereby improving the stability of the rotating rod when rotating.

The utility model is further configured as follows: an annular groove is opened on the inner wall of the piercing opening, and an annular block that rotatably fits with the annular groove is fixedly connected to the peripheral side wall of the rotating rod.

By adopting the above technical solution, the setting of the annular block and the annular groove is used to limit the position of the rotating rod, so as to prevent the rotating rod from moving along its length direction during the rotation, thereby preventing the driving bevel gear from being separated from the driven bevel gear and affecting the arc block Adjustment of support diameter.

The utility model is further configured as: the end of the rotating rod away from the adjustment box is fixedly connected with a hand wheel.

By adopting the above technical solution, the setting of the hand wheel saves the power consumption of directly rotating the rotating rod, and effectively improves the rotating efficiency of the rotating rod.

The utility model is further configured as follows: a first magnet is embedded in the arc-shaped block, and a second magnet magnetically attracted to the arc-shaped block is embedded in the interior of the steel pipe body.

By adopting the above technical solution, when the arc-shaped block moves to a position where it conflicts with the inner wall of the steel pipe body, the first magnet and the second magnet attract each other, thereby improving the support stability of the arc-shaped block to the steel pipe body, thereby improving The supporting effect of the arc block on the steel pipe body.

In summary, the beneficial technical effects of the utility model are:

1. The setting of the diameter adjustment component realizes the adjustment of the diameter of the arc-shaped block support, so that the inner support structure is suitable for large-diameter steel pipes with different pipe diameters, thereby improving the scope of application of the inner support structure;

2. The limit component is set as a sleeve limit, which prevents the sleeve from following the rotation of the screw and affects the sliding of the sleeve along the length of the screw, thereby avoiding affecting the adjustment of the support diameter of the inner support structure;

3. The setting of the chute and the slider is used to limit the sliding range of the sleeve, so as to prevent the sleeve from slipping excessively and falling off the screw rod, so as to avoid affecting the supporting effect of the arc block.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present embodiment;

Fig. 2 is a schematic cross-sectional structure diagram of this embodiment.

In the figure: 1. steel pipe body; 11. second magnet; 2. arc block; 21. first magnet; 3. adjustment box; 4. diameter adjustment assembly; 41. screw; 42. sleeve; 5. drive assembly ;51, driven bevel gear; 52, driving bevel gear; 53, rotating rod; 531, ring block; 532, hand wheel; 621, slide block; 7, support rod; 71, piercing opening; 711, annular groove.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to FIG. 1 , it is a large-diameter steel pipe inner support structure disclosed by the utility model, including a steel pipe body 1 . An arc-shaped block 2 abuts against the inner wall of the steel pipe body 1 , and the arc-shaped block 2 is an arc-shaped block structure for supporting the steel pipe body 1 .

Referring to FIG. 1 , an adjustment box 3 is provided inside the steel pipe body 1 , and the adjustment box 3 is a rectangular box structure, which is hollow inside and located at the center of the steel pipe body 1 . A diameter adjustment assembly 4 is provided on the adjustment box 3 , and the diameter adjustment assembly 4 includes a screw 41 and a sleeve 42 . The screw 41 is a circular rod-shaped structure, which runs through the adjustment box 3 along the height direction of the adjustment box 3 ; the helical directions at both ends of the screw 41 are opposite. The sleeve 42 is a circular cylindrical structure, and its inside is provided with a threaded hole; there are two sleeves 42, and the two sleeves 42 are threadedly matched with the two ends of the screw rod 41 respectively; The inner wall of the concave end of shape block 2 is fixed.

Referring to FIG. 2 , a limit assembly 6 is provided on the sleeve 42 and the adjustment box 3 , and the limit assembly 6 includes a telescopic rod 61 and a fixed rod 62 . The telescopic rod 61 is a circular rod-shaped structure, its peripheral sidewall is fixedly connected with the peripheral sidewall of the sleeve 42 , and its interior is hollow. One end of the fixed rod 62 extends into the telescopic rod 61 and slides along the inside of the telescopic rod 61 ; the other end of the fixed rod 62 is fixed to the outer wall of the adjustment box 3 . The arrangement of the telescopic rod 61 and the fixed rod 62 provides support for the sleeve 42 on the one hand without affecting the sliding of the sleeve 42, which improves the stability of the sliding of the sleeve 42; on the other hand, the telescopic rod 61 and the fixed The rod 62 is used to limit the position of the sleeve 42, preventing the sleeve 42 from following the rotation of the screw 41 and affecting the sliding of the sleeve 42 along the length direction of the screw 41, so as to avoid affecting the adjustment of the support diameter of the inner support structure. A chute 611 is provided on the inner wall of the telescopic rod 61 , and the cross section of the chute 611 is rectangular, and is provided along the length direction of the telescopic rod 61 . A sliding block 621 is fixedly connected to the peripheral side wall of the fixing rod 62 , and the sliding block 621 is a rectangular block structure, and slidingly fits with the chute 611 . The arrangement of the chute 611 and the slider 621 is used to limit the sliding range of the sleeve 42. When the sleeve 42 slides to a certain distance away from the adjustment box 3, the slider 621 slides to the end of the chute 611, thereby Prevent the sleeve 42 from slipping excessively and fall off from the screw rod 41 , so as to avoid affecting the supporting effect of the arc block 2 .

Referring to FIG. 2 , the adjusting box 3 is provided with a driving assembly 5 for driving the screw 41 to rotate. The driving assembly 5 includes a driven bevel gear 51 , a driving bevel gear 52 and a rotating rod 53 . The driven bevel gear 51 is sleeved and fixed on the middle part of the screw rod 41 and is located inside the adjustment box 3 . The driving bevel gear 52 meshes with the driven bevel gear 51 and is located inside the regulating box 3 . The rotating rod 53 is a circular rod-shaped structure, one end of which is sleeved and fixed on the center of the driving bevel gear 52 , and the other end is fixedly connected with a hand wheel 532 . The cross section of the hand wheel 532 is circular, and the setting of the hand wheel 532 saves the power consumption of directly rotating the rotating rod 53 and effectively improves the rotating efficiency of the rotating rod 53 . Turn the hand wheel 532 to make the rotating rod 53 drive the driving bevel gear 52 to rotate, and the driving bevel gear 52 drives the driven bevel gear 51 to rotate, thereby driving the screw rod 41 to rotate. Since the operation of directly rotating the screw rod 41 is troublesome, the setting of the drive assembly 5 improves the screw rod. 41 turns for convenience.

Referring to Fig. 2, the outer wall of the adjustment box 3 is fixedly connected with a support rod 7, the cross section of the support rod 7 is U-shaped, its two ends are fixed on the adjustment box 3, and its side wall is provided with a hole 71 for piercing. The mouth 71 runs through the support rod 7 along the thickness direction of the support rod 7, and is used for the rotation rod 53 to pass through and to be connected with the rotation rod 53; It moves down under the action of its own gravity, thereby improving the stability when the rotating rod 53 rotates. An annular groove 711 is formed on the inner wall of the piercing opening 71 . The cross section of the annular groove 711 is circular, and is arranged around the piercing opening 71 . An annular block 531 is fixedly connected to the peripheral side wall of the rotating rod 53 , and the annular block 531 has a circular structure and is rotatably matched with the annular groove 711 . The arrangement of the ring block 531 and the ring groove 711 is used to limit the position of the rotation rod 53, preventing the rotation rod 53 from moving along its length direction during the rotation process, thereby preventing the driving bevel gear 52 from being separated from the driven bevel gear 51 and affecting the arc block 2 Adjustment of support diameter.

Referring to FIG. 2 , a first magnet 21 is fitted inside the arc-shaped block 2 . The first magnet 21 has an arc-shaped cross-section and is magnetic, and is located at one end of the arc-shaped block 2 close to the steel pipe body 1 . A second magnet 11 is fitted inside the steel pipe body 1 . The second magnet 11 has a circular cross-section and magnetically attracts the first magnet 21 . When the arc-shaped block 2 moves to a position in conflict with the inner wall of the steel pipe body 1, the first magnet 21 and the second magnet 11 attract each other, thereby improving the support stability of the arc-shaped block 2 to the steel pipe body 1, thereby improving The supporting effect of the arc block 2 on the steel pipe body 1.

The implementation principle of this embodiment is: turn the hand wheel 532, so that the rotating rod 53 drives the driving bevel gear 52 to rotate, and the driving bevel gear 52 drives the driven bevel gear 51 to rotate, thereby driving the screw rod 41 to rotate. With the limiting effect of the fixed rod 62, the rotational force of the screw rod 41 is transformed into its own slippage along the length direction of the screw rod 41. Since the screw threads at both ends of the screw rod 41 are in the opposite direction, when the screw rod 41 is rotated, the sleeves 42 at both ends are Move synchronously in the direction away from or close to the adjustment box 3, so as to realize the adjustment of the support diameter of the arc block 2, so that the inner support structure is suitable for large-diameter steel pipes with different pipe diameters, thereby improving the applicability of the inner support structure scope.

The embodiments of this specific embodiment are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model accordingly: all equivalent changes made according to the structure, shape and principle of the present utility model are all applicable. Should be covered within the protection scope of the present utility model.

Claims (8)

1. The utility model provides a heavy-calibre steel pipe inner support structure, includes steel pipe body (1), its characterized in that: the inner wall of the steel pipe body (1) is abutted with an arc-shaped block (2) for supporting the steel pipe body (1), an adjusting box (3) is arranged at the center of the interior of the steel pipe body (1), a diameter adjusting component (4) is arranged on the adjusting box (3), the diameter adjusting component (4) comprises a screw rod (41) penetrating through the adjusting box (3) along the height direction of the adjusting box and sleeves (42) respectively sleeved at two ends of the screw rod (41) and in threaded fit with the screw rod (41), the screw threads at the two ends of the screw rod (41) are opposite in rotating direction, one end of the sleeve (42) far away from the screw rod (41) is fixed with the inner wall of the concave end of the arc-shaped block (2), the adjusting box (3) is provided with a driving component (5) for driving the screw rod (41) to rotate, and the adjusting box (3) and the sleeve (42) are provided with a limiting assembly (6) for limiting the rotation of the sleeve (42).

2. The internal support structure of a large-diameter steel pipe according to claim 1, wherein: the limiting assembly (6) comprises a telescopic rod (61) which is fixedly connected to the peripheral side wall of the sleeve (42) and slides along with the sleeve (42), and a fixing rod (62) which is connected to the inside of the telescopic rod (61) in a sliding mode, and the end part of the fixing rod is fixed to the outer wall of the adjusting box (3).

3. The internal support structure of a large-diameter steel pipe according to claim 2, wherein: the inner wall of the telescopic rod (61) is provided with a sliding groove (611) with the length direction consistent with that of the telescopic rod (61), and the peripheral side wall of the fixed rod (62) is fixedly connected with a sliding block (621) in sliding fit with the sliding groove (611).

4. The internal support structure of a large-diameter steel pipe according to claim 1, wherein: the driving component (5) comprises a driven bevel gear (51) fixed in the middle of the screw rod (41) in a sleeved mode, a driving bevel gear (52) meshed with the driven bevel gear (51) and a rotating rod (53) fixed in the center of the driving bevel gear (52) in a sleeved mode.

5. The internal support structure of a large-diameter steel pipe according to claim 4, wherein: fixedly connected with bracing piece (7) on the outer wall of regulating box (3), seted up on bracing piece (7) with dwang (53) rotate wearing to establish mouth (71) of connecting.

6. The internal support structure of a large-diameter steel pipe according to claim 5, wherein: an annular groove (711) is formed in the inner wall of the penetrating opening (71), and an annular block (531) in running fit with the annular groove (711) is fixedly connected to the peripheral side wall of the rotating rod (53).

7. The internal support structure of a large-diameter steel pipe according to claim 4, wherein: the rotating rod (53) is far away from one end of the adjusting box (3) and is fixedly connected with a hand wheel (532).

8. The internal support structure of a large-diameter steel pipe according to claim 1, wherein: the steel pipe is characterized in that a first magnet (21) is embedded in the arc-shaped block (2), and a second magnet (11) which is magnetically attracted with the arc-shaped block (2) is embedded in the steel pipe body (1).