A rotary pipe orifice top support device

Abstract

The present invention discloses a rotary pipe orifice jacking device, which comprises a machine base, a rotary component rotatably assembled with the machine base, a jacking component fixed on the rotary component and having a telescopic direction extending along the radial direction of the rotary circle of the rotary device, and a rotary driving component for driving the rotary component to perform a rotary motion relative to the machine base. The present invention can perform jacking operations on the offsets in the circumferential direction of the pipe orifice, reduces the manual operation intensity, avoids damage to the pipeline structure caused by the welding process pull plates, and improves the work efficiency.

Description

Technical Field

[0001] The invention relates to a rounding device for a large-diameter pipe, in particular to a rotary pipe orifice supporting device. Background Art

[0002] During butt welding of large-diameter pipes, there will be misalignment between the two pipe ends due to manufacturing errors, and the position of the misalignment is arbitrary. In order to eliminate the misalignment within the 360° circumference of the pipe end, workers need to pull the plate with a manual welding process and use a manual jack to level the misalignment. This method is inefficient, especially in the trenchless large-diameter secondary lining steel pipe laying project. Since the outside of the secondary lining steel pipe is very close to the wall of the primary lining pipe, the misalignment can only be eliminated from the inside of the pipe end. The operation is difficult and intensive, unsafe, and has certain damage to the steel pipe wall.

[0003] The present invention with announcement number CN111001976A discloses a docking device for large-diameter thin-walled pipes and a method for using the same. A docking device for large-diameter thin-walled pipes comprises a supporting unit (1), characterized in that the supporting unit (1) comprises a support rod (11), a supporting rod (12), a connecting rod (13) and a jack (14), two support rods (11) are arranged parallel to each other, and a supporting rod (12) is screwed into each end of the support rod (11), and the two support rods (11) are connected by at least two connecting rods (13), and a jack (14) is fixed on each connecting rod (13). A method for using a docking device for large-diameter thin-walled pipes is characterized in that the following steps are implemented in sequence: ① placing; ② correcting; ③ spot welding; ④ repeating. The present invention is simple to manufacture, low in cost, safe and reliable, and improves efficiency.

[0004] This technical solution can only achieve a local effect on the pipe ends, and cannot achieve the support operation for the misalignment of the pipe ends in the full circumferential direction. The operation efficiency is low and the positioning and alignment are difficult.

[0005] The utility model with the publication number CN210305150U discloses a pipe circularity expanding device convenient for adjusting the inner diameter, which comprises a fixed ring, a connecting ring and rubber hard blocks. The fixed ring is welded to the connecting ring, and the rubber hard blocks penetrate through the fixed ring. Horizontally outward extensions of the rubber hard blocks form a first arc surface, a second arc surface and a third arc surface, and the arc surfaces of the first arc surface, the second arc surface and the third arc surface are distributed in a triangular shape. One end of the connecting ring is welded with a fixed block, and the other end of the connecting ring passes through a movable block, and the connecting ring is welded to a fixed cylinder through a connecting rod. A pull rod penetrates through the wall of the fixed cylinder, and a threaded sleeve is movably connected to the inner wall of the fixed cylinder through a rolling bearing. For this pipe circularity expanding device convenient for adjusting the inner diameter, the three arc surfaces on the rubber hard blocks can be switched. In this way, the switched rubber hard blocks can be combined into three rings with different inner diameters, and then circularity expanding operations of three different specifications can be carried out, with strong applicability.

[0006] This technical solution can only be used for pipe circularity expansion and is powerless to eliminate the offset of pipe orifices. Summary of the Invention

[0007] The purpose of the present invention is to provide a rotary pipe orifice jacking device.

[0008] To solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A rotary pipe orifice jacking device comprises a machine base, a rotary component rotatably assembled with the machine base, a jacking component fixed on the rotary component and extending in the radial direction of the rotary circle of the rotary device, and a rotary driving component for driving the rotary component to rotate relative to the machine base.

[0010] The machine base is disc-shaped, and a rotary guiding structure for rotation is provided on the outer circle of the machine base;

[0011] The rotary component includes an annular rotary frame sleeved on the outer circle of the machine base, capable of rotating relative to the machine base, and a guiding and cooperating element corresponding to the rotary guiding structure on the machine base is provided on the inner side of the rotary frame, and an installation platform for installing the jacking component is arranged on the outer side of the rotary frame.

[0012] The driving component includes a gear arranged on the machine base and a gear ring fixedly assembled on the rotary component and meshing with the gear, and the gear is connected with a driving unit.

[0013] The driving component includes a gear arranged on the rotary component and a gear ring fixedly assembled on the machine base and meshing with the gear, and the gear is connected with a driving unit.

[0014] There are two groups of the rotary components, which are arranged along the axial direction of the machine base. The two groups of rotary components respectively correspond to two butt-jointed pipes, and a jacking component is arranged on each rotary component.

[0015] There are also two sets of the rotary drive components, which respectively drive the two rotary components to rotate independently.

[0016] The jacking component includes a set of jacking units, and the jacking unit is composed of two jacks arranged opposite to each other in the diameter direction of the rotary circle.

[0017] The jacking component includes two or more sets of jacking units.

[0018] The rotary guiding structure includes two sets of guide rails arranged axially, namely guide rail one with an inverted V-shaped limit projection and guide rail two without a limit projection; the guiding and cooperating element is hinged to the rotary component, the side of the guiding and cooperating element facing the guide rail is an arc sliding pair for cooperating with it, and the guiding and cooperating element is divided into guiding and cooperating element one with a V-shaped groove for cooperating with guide rail one and guiding and cooperating element two without a V-shaped groove for cooperating with guide rail two.

[0019] The rotary guiding structure includes two sets of guide rails with cylindrical surfaces arranged axially and a circular ring limit between the two sets of guide rails; the side of the guiding and cooperating element facing the guide rail is an arc sliding pair for cooperating with it, and a roller bearing fixed on the rotary component, and the rolling surfaces of the roller bearing are attached to both sides of the circular ring limit.

[0020] Advantages of the present invention:

[0021] The present invention can replace humans to eliminate the misalignment of pipes, improve work efficiency, reduce the construction difficulty and intensity, improve the safety of operations, and avoid damage to the pipe material caused by temporary welding.

[0022] The present invention can perform jacking operations on the misalignment in the circumferential direction of the pipe orifice, reduce the manual operation intensity, avoid damage to the pipe structure caused by the welding process pull plate, and improve work efficiency. Description of the drawings

[0023] Figure 1 It is a schematic diagram of the first embodiment of the rotary pipe orifice jacking device of the present invention;

[0024] Figure 2 It is an exploded view of the first embodiment of the rotary pipe orifice jacking device of the present invention;

[0025] Figure 3 It is a schematic diagram of the frame in the first embodiment of the rotary pipe orifice jacking device of the present invention;

[0026] Figure 4 It is Figure 3 a partial cross-sectional view taken along line A-A in

[0027] Figure 5Explosion diagram of the rotary component in the first embodiment of the rotary pipe orifice jacking device of the present invention;

[0028] Figure 6 Schematic diagram of the guiding and mating element in the first embodiment of the rotary pipe orifice jacking device of the present invention;

[0029] Figure 7 For Figure 6 Partial sectional view taken along line B - B in

[0030] Figure 8 Schematic diagram of the working principle of the first embodiment of the present invention;

[0031] Figure 9 Stereogram of the second embodiment of the present invention;

[0032] Figure 10 Working schematic diagram of the second embodiment of the present invention;

[0033] Figure 11 Schematic diagram of the working principle of the second embodiment of the present invention;

[0034] Figure 12 Stereogram of the fourth embodiment of the present invention;

[0035] Figure 13 Front view of the fourth embodiment of the present invention;

[0036] Figure 14 Schematic diagram of the fourth embodiment of the present invention;

[0037] Figure 15 For Figure 14 Partial sectional view taken along line C - C in Specific embodiments

[0038] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings.

[0039] Embodiment 1:

[0040] As Figure 1 、 Figure 2 shown, a rotary pipe orifice jacking device includes a machine base 1, a rotary component 2 rotatably assembled with the machine base 1, a jacking component 3 fixed on the rotary component 2 and extending in the radial direction of its rotation circle in the telescopic direction, and a rotary driving component 4 for driving the rotary component 2 to rotate relative to the machine base 1.

[0041] As Figure 3 、 Figure 4As shown, the machine base 1 is disc-shaped, and a rotary guiding structure 1-2 for rotation is provided on the outer circle of the machine base 1. The rotary guiding structure 1-2 includes a guide rail 1-2A with an inverted V-shaped limiting projection and a guide rail 1-2B without a limiting projection. The inverted V-shaped slope of the guide rail 1-2A has a limiting effect and can prevent the rotary component 2 from disengaging from the machine base 1 during rotation; the guide rail 1-2B mainly bears the supporting force of the supporting component.

[0042] As Figure 5 shown, the rotary component 2 includes a rotary frame 2-1 and a guiding and mating element 2-2; the rotary frame 2-1 includes a circular body, and 4 mounting platforms 2-1-1 for mounting the supporting components are evenly distributed on the outer circumference of the body. 4 groups of guiding and mating elements 2-2 are evenly distributed in the circumferential direction of the rotary component 2. Correspondingly, four mating pin holes 2-1-2 are evenly distributed in the circumferential direction of the rotary frame 2-1; the guiding and mating element 2-2 is hingedly mounted on the rotary frame at the pin hole 2-1-2, so that it can adapt to the roundness and cylindricity machining errors of the outer circle guiding structure 1-2 of the machine base 1 through swinging.

[0043] In order to cooperate with the rotary guiding structure 1, there are also two types of guiding and mating elements. One is a limiting mating element 2-2A with a V-shaped groove (as Figure 6 , Figure 7 ), and the other is a limiting mating element 2-2B without a V-shaped groove; the guiding and mating element 2-2 has a swinging pin shaft 2-2-2 and an arc-shaped sliding pair that mates with the guide rail 1-2. The swinging pin shaft 2-2-2 is installed at the corresponding pin hole 2-1-2, and the arc-shaped sliding pair faces the guide rail.

[0044] The rotary driving component 4 adopts the method of driving a gear and a gear ring by a motor. The rotary driving component 4 includes a gear provided on the rotary component 2 and a gear ring fixedly assembled on the machine base 1 and meshing with the gear, and the gear is connected with a motor. The motor is installed in the motor mounting hole 2-1-3 of the rotary component, and the gear is installed on the output shaft of the driving motor.

[0045] The supporting component 3 includes a set of supporting units, and the supporting unit is two jacks opposed to each other in the diameter direction of the rotary circle. In this embodiment, the supporting component includes two sets of supporting units, with a total of four jacks. The function of eliminating the offset can be realized by the jacks extending and supporting the pipe orifice.

[0046] The working principle of this embodiment is schematically shown as Figure 8 shown. It has only one rotary component. The present invention moves to the laid pipe orifice or the pipe orifice to be laid, and the supporting unit supports the protruding part to eliminate the offset. And by moving its position, the operation of eliminating the offset of the two butt-jointed pipe orifices can be satisfied.

[0047] Embodiment Two:

[0048] The difference between this embodiment and the first embodiment is that: as Figure 9 and 10 shown, there are two sets of slewing components 2, which are arranged along the axial direction of the machine base 1. The two sets of slewing components 2 respectively correspond to two pipes to be docked, and a jacking component is provided on each slewing component. There are also two sets of slewing drive components 4, which respectively drive the two slewing components 2 to rotate independently.

[0049] The working principle of this embodiment is schematically shown as Figure 11 shown. The two slewing components 2 respectively correspond to the laid pipe orifice and the pipe orifice to be laid. The jacking unit on one of the slewing components jacks up the higher part of the pipe orifice misalignment, and the jacking unit on the other slewing component pulls the lower part of the misalignment.

[0050] Embodiment Three:

[0051] In this embodiment, there are two sets of slewing components, which are arranged along the axial direction of the machine base. The two sets of slewing components respectively correspond to two pipes to be docked, and a jacking component is provided on each slewing component. The difference from Embodiment Two is that: the two sets of slewing components are fixedly connected, and there is only one or two sets of corresponding slewing drive components, which drive the two slewing components to rotate synchronously.

[0052] Embodiment Four:

[0053] The difference between this embodiment and Embodiment Two is that: as Figure 12 and 13 shown, in this embodiment, the gear of the drive component is installed on the machine base 1, and the gear ring is installed on the slewing component 2.

[0054] Embodiment Five:

[0055] The difference between this embodiment and the first embodiment is that: as Figure 14 and 15 shown, in this embodiment, the slewing guiding structure includes two sets of cylindrical surface rails 1-3 arranged axially, and a ring-shaped limit 1-4 between the two sets of rails 1-3; the guiding and mating element 2-2 has an arc-shaped sliding pair on the side facing the rail, and a roller bearing 2-3 fixed on the slewing component, and the rolling surface of the roller bearing 2-3 is attached to both sides of the ring-shaped limit 1-4.

[0056] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be modified or equivalently replaced, and any modification or partial replacement without departing from the spirit and scope of the present invention shall be covered by the scope of the claims of the present invention.

[0057] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the protected content of the present invention.

Claims

1. A rotary pipe orifice top support device, characterized in that: It includes a machine base, a rotary component rotatably assembled with the machine base, a top support component fixed on the rotary component and extending in the radial direction of the rotary circle of the rotary device, and a rotary drive component for driving the rotary component to rotate relative to the machine base; The machine base is disc-shaped, and a rotary guiding structure for rotation is provided on the outer circle of the machine base; The rotary component includes an annular rotary frame, which is sleeved on the outer circle of the machine base and can rotate relative to the machine base. The rotary frame is provided with a guiding and mating element corresponding to the rotary guiding structure on the machine base inside, and an installation platform for installing the top support component is arranged on the outside of the rotary frame; The rotary guiding structure includes two groups of guide rails arranged axially, namely guide rail one with an inverted V-shaped limiting protrusion and guide rail two without a limiting protrusion; The guiding and mating element is hinged on the rotary component. The side of the guiding and mating element facing the guide rail is an arc-shaped sliding pair for mating with it, and the guiding and mating element is divided into guiding and mating element one with a V-shaped groove for mating with guide rail one and guiding and mating element two without a V-shaped groove for mating with guide rail two; There are two groups of rotary components, which are arranged along the axial direction of the machine base. The two groups of rotary components respectively correspond to two butt-jointed pipelines, and a top support component is provided on each rotary component; The two rotary components respectively correspond to the laid pipe orifice and the pipe orifice to be laid. The top support unit on one rotary component supports the higher part of the pipe orifice misalignment, and the top support unit on the other rotary component pulls the lower part of the misalignment.

2. The rotary pipe orifice top support device according to claim 1, characterized in that: The drive component includes a gear arranged on the machine base and a gear ring fixedly assembled on the rotary component and meshing with the gear. The gear is connected with a drive unit.

3. The rotary pipe orifice top support device according to claim 1, characterized in that: The drive component includes a gear arranged on the rotary component and a gear ring fixedly assembled on the machine base and meshing with the gear. The gear is connected with a drive unit.

4. The rotary pipe orifice top support device according to any one of claims 1 to 3, characterized in that: There are also two groups of the rotary drive components, which respectively drive the two rotary components to rotate independently; 5. The rotary nozzle top support device according to any one of claims 1 to 3, characterized in that: The top support component includes a group of top support units, and the top support unit is two jacks opposed in the diameter direction of the rotary circle; 6. The rotary pipe orifice top support device according to claim 5, characterized in that: The top support component includes two groups or more than two groups of top support units.

Images