Steel pipe ovality adjusting tool

Abstract

The utility model discloses a tool for adjusting ovality of a steel pipe, which relates to the field of tower-attached pipeline construction, and comprises a driving piece, a supporting rod, a fixed disc, a guide sleeve and a long ejector rob, the supporting rod is arranged inside the steel pipe, two ends of the supporting rod are respectively in threaded connection with a threaded rod, a supporting block is rotatably arranged at the optical axis end of the threaded rod, and the supporting block is contacted with the inner wall of the steel pipe. The long ejector rod is supported and guided through the guide sleeve, the cushion block makes contact with the inner wall of the steel pipe, the driving piece is stabilized, meanwhile, the long ejector rod is stabilized, by operating the driving piece, the driving piece drives the long ejector rod and the ejector block to move upwards, and then the ejector block makes contact with the to-be-corrected portion of the steel pipe. The ovality of the steel pipe is adjusted, the guide sleeve is rotatable, the positions of the long ejector rod and the driving part can be rapidly adjusted, other to-be-corrected parts of the steel pipe are in contact, the operation difficulty is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of tower-attached pipeline construction, and particularly relates to a steel pipe ovality adjustment tool. Background Art

[0002] Tower-attached pipelines generally refer to pipelines attached to vertical equipment such as towers and vessels, and located at elevations above 20 meters. These pipelines are often large-diameter steel pipes. External forces applied to the steel pipes during manufacturing or transportation can cause the cross-sectional shape of the pipes to change from an ideal circular shape to an elliptical shape. Therefore, the elliptical shape of the pipes needs to be adjusted during construction.

[0003] Currently, when adjusting the ovality of a steel pipe, workers weld a stainless steel pad to the bottom of the jack, a stainless steel top plate to the top of the crowbar, and simultaneously weld the top of the jack to the crowbar.

[0004] However, it was discovered during use that this method requires the cooperation of at least two experienced workers: one to stabilize the crowbar to bring the stainless steel top plate into contact with the part of the steel pipe to be corrected, while the other operates the jack to actuate the crowbar. This method is complex and labor-intensive, and if the crowbar is not stabilized, it can affect the adjustment of the steel pipe's ovality.

[0005] Therefore, we propose a steel pipe ovality adjustment tool to solve the above problems. Utility Model Content

[0006] Aiming at the problem that when using a jack and a crowbar to adjust the ovality of a steel pipe, the operation is complicated, the manpower requirement is large, and the crowbar is not stable, which affects the ovality adjustment of the steel pipe, the utility model provides a steel pipe ovality adjustment tool.

[0007] The utility model solves the technical problem by adopting a solution: a steel pipe ovality adjustment tool, comprising a driving member, a support rod, a fixing plate, a guide sleeve and a long push rod, wherein the support rod is arranged inside the steel pipe, and a threaded rod is threadedly connected at both ends thereof, and a support block is rotatably mounted on the optical axis end of the threaded rod, and the support block contacts the inner wall of the steel pipe to fix the support rod in the steel pipe;

[0008] The fixed plate is welded to the middle of the support rod, the guide sleeve is rotatably mounted at the center of the fixed plate, the long push rod is arranged in the guide sleeve and can slide along the guide sleeve, and the top of the long push rod is equipped with a push block;

[0009] The driving end of the driving member is detachably connected to the bottom end of the long push rod, and the base thereof contacts the inner wall of the steel pipe.

[0010] Preferably, the optical axis section of the threaded rod is equipped with a plurality of rotating rods for driving the threaded rod to rotate.

[0011] Preferably, the driving member is any one of a jack, a hydraulic rod, and an electric cylinder.

[0012] Preferably, the long push rod is assembled from N short push rods.

[0013] Preferably, one end of the short push rod is provided with a threaded head, and the other end is provided with a threaded hole, so that two adjacent short push rods are threadedly connected.

[0014] Preferably, a connecting nut is welded to the driving end of the driving member, and the threaded head of the short push rod at the lower section is threadedly connected to the connecting nut.

[0015] Preferably, a handle is installed on the side of the short push rod in the lower section.

[0016] Preferably, a plurality of thread grooves are provided around the front side of the fixed plate, a connecting block is fixedly connected to the side of the guide sleeve, a positioning bolt is provided in the circular hole of the connecting block, and the positioning bolt is threadedly connected to the corresponding thread groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model supports and guides the long push rod through the guide sleeve, and when the pad is in contact with the inner wall of the steel pipe, the driving member is stabilized and the long push rod is also stabilized. By operating the driving member, the driving member drives the long push rod and the push block to move upward, and then the push block is brought into contact with the part of the steel pipe to be corrected, and the ovality of the steel pipe is adjusted. In addition, the guide sleeve is rotatable, and the position of the long push rod and the driving member can be quickly adjusted to contact other parts of the steel pipe to be corrected, thereby reducing the difficulty of operation and improving work efficiency.

[0019] 2. The utility model adjusts the position of the ejector block by rotating the long ejector rod. When the ejector block corresponds to the portion of the steel pipe to be corrected, the positioning bolt is rotated to thread the positioning bolt into the corresponding thread groove, thereby fixing the rotation angle of the guide sleeve, the connecting block and the long ejector rod. In this way, the worker only needs to operate the driving part, further reducing the difficulty of operation and ensuring the adjustment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 2 This is an enlarged left-side sectional structural diagram of the support rod and turntable of the utility model;

[0022] Figure 3 This is a schematic diagram of the front cross-sectional structure of the short push rod of the utility model.

[0023] In the figure: 1 support rod, 21 fixing nut, 22 threaded rod, 23 rotating rod, 24 support block, 31 driving member, 32 spacer block, 33 connecting nut, 4 long push rod, 41 short push rod, 42 threaded head, 43 threaded hole, 5 handle, 6 push block, 71 fixing plate, 72 guide sleeve, 73 connecting block, 74 positioning bolt, 75 threaded groove, 76 rotating shaft. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] See also Figure 1-3 The utility model provides a technical solution for a steel pipe ovality adjustment tool:

[0026] Example 1:

[0027] according to Figure 1-3 As shown, it includes a driving member 31, a support rod 1, a fixing plate 71, a guide sleeve 72 and a long push rod 4.

[0028] The support rod 1 is arranged inside the steel pipe, and a fixing nut 21 is installed at both ends thereof. The internal thread of the fixing nut 21 is connected to a threaded rod 22. The optical axis end of the threaded rod 22 is fitted with a bearing 1, and the bearing 1 is installed on the support block 24. By rotating the threaded rods 22 on both sides, the support blocks 24 on both sides are moved away from each other, and the support blocks 24 are brought into contact with the inner wall of the steel pipe, thereby fixing the support rod 1 in the steel pipe.

[0029] The fixed plate 71 is welded to the middle of the support rod 1, and a rotating shaft 76 is fixedly installed on the rear side of the guide sleeve 72. A second bearing is sleeved on the rotating shaft 76, and the second bearing is installed at the center of the fixed plate 71 to enable the guide sleeve 72 to rotate.

[0030] The long push rod 4 is arranged in the guide sleeve 72. Since the guide sleeve 72 is rotatable, the position of the long push rod 4 can be quickly adjusted to contact other parts of the steel pipe to be corrected, thereby reducing the difficulty of operation and improving work efficiency. The guide sleeve 72 supports and guides the long push rod 4 to ensure the stability of the long push rod 4 during the sliding process. The long push rod 4 is assembled by N short push rods 41. The specific assembly method is: one end of the short push rod 41 is provided with a threaded head 42, and the other end is provided with a threaded hole 43, so that the two adjacent short push rods 41 are threadedly connected, and the top of the upper short push rod 41 is installed with a push block 6.

[0031] The driving member 31 is any one of a jack, a hydraulic rod, and an electric cylinder. A connecting nut 33 is welded to the driving end of the driving member 31, and the threaded head 42 of the lower short push rod 41 is threadedly connected to the connecting nut 33, so that the driving end of the driving member 31 and the lower short push rod 41 are detachably connected.

[0032] The base of the driving member 31 is equipped with a pad 32, which contacts the inner wall of the steel pipe. By operating the driving member 31, the driving member 31 drives the long push rod 4 and the push block 6 to move upward, and then makes the push block 6 contact the part to be corrected of the steel pipe to adjust the ovality of the steel pipe.

[0033] During specific use, the utility model provides a steel pipe ovality adjustment tool. First, the fixed plate 71 is placed concentrically with the steel pipe, and then the threaded rods 22 on both sides are rotated to make the support blocks 24 on both sides move away from each other, and make the support blocks 24 contact the inner wall of the steel pipe, fix the support rod 1 in the steel pipe, and finally make the top block 6 correspond to the part to be corrected of the steel pipe, and at the same time make the cushion block 32 contact the inner wall of the steel pipe, stabilize the driving member 31, and operate the driving member 31 at the same time. The driving member 31 drives the long push rod 4 and the top block 6 to move upward, so that the top block 6 contacts the part to be corrected of the steel pipe to adjust the ovality of the steel pipe.

[0034] Example 2:

[0035] Based on the first embodiment, Figure 1 As shown, a plurality of rotating rods 23 are installed on the optical axis section of the threaded rod 22 for driving the threaded rod 22 to rotate.

[0036] A handle 5 is installed on the side of the lower short push rod 41.

[0037] Example 3:

[0038] Based on the first embodiment, Figure 1 and Figure 2 As shown, a plurality of threaded grooves 75 are provided around the front side of the fixed plate 71, and a connecting block 73 is fixedly connected to the side of the guide sleeve 72. A positioning bolt 74 is provided in the circular hole opened in the connecting block 73. The position of the top block 6 is adjusted by rotating the long push rod 4. When the top block 6 corresponds to the part to be corrected of the steel pipe, the positioning bolt 74 is threadedly connected to the corresponding threaded groove 75 by rotating the positioning bolt 74, and then the rotation angle of the guide sleeve 72, the connecting block 73 and the long push rod 4 is fixed, so that the worker only needs to operate the driving part 31, further reducing the difficulty of operation and ensuring the adjustment accuracy.

Claims

1. A steel pipe ovality adjustment tool, comprising a driving member, a support rod, a fixing plate, a guide sleeve, and a long push rod, characterized in that: The support rod is arranged inside the steel pipe, and a threaded rod is threadedly connected at both ends thereof. A support block is rotatably mounted on the optical axis end of the threaded rod, and the support block contacts the inner wall of the steel pipe to fix the support rod in the steel pipe; The fixed plate is welded to the middle of the support rod, the guide sleeve is rotatably mounted at the center of the fixed plate, the long push rod is arranged in the guide sleeve and can slide along the guide sleeve, and the top of the long push rod is equipped with a push block; The driving end of the driving member is detachably connected to the bottom end of the long push rod, and the base thereof contacts the inner wall of the steel pipe.

2. The steel pipe ovality adjustment tool according to claim 1, characterized in that: The optical axis section of the threaded rod is equipped with a plurality of rotating rods for driving the threaded rod to rotate.

3. The steel pipe ovality adjustment tool according to claim 1, characterized in that: The driving member is any one of a jack, a hydraulic rod and an electric cylinder.

4. The steel pipe ovality adjustment tool according to claim 1, characterized in that: The long push rod is assembled from N short push rods.

5. The steel pipe ovality adjustment tool according to claim 4, characterized in that: One end of the short push rod is provided with a threaded head, and the other end is provided with a threaded hole, so that two adjacent short push rods are threadedly connected.

6. The steel pipe ovality adjustment tool according to claim 5, characterized in that: A connecting nut is welded on the driving end of the driving member, and the threaded head of the short push rod in the lower section is threadedly connected to the connecting nut.

7. The steel pipe ovality adjustment tool according to claim 5, characterized in that: A handle is installed on the side of the short push rod described in the next section.

8. The steel pipe ovality adjustment tool according to claim 1, characterized in that: A plurality of thread grooves are provided around the front side of the fixing plate, a connecting block is fixedly connected to the side of the guide sleeve, a positioning bolt is provided in the circular hole of the connecting block, and the positioning bolt is threadedly connected to the corresponding thread groove.

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