Bending device for steam pipeline

Abstract

The utility model relates to the technical field of pipeline bending, in particular to a steam pipeline bending device which comprises a bending machine body, a telescopic mechanism and a limiting sleeve are fixedly arranged at the top of the bending machine body, and a supporting mechanism is connected to the inner wall of the limiting sleeve in a sliding mode. The telescopic mechanism can control the supporting mechanism to slide on the inner wall of the limiting sleeve. The supporting mechanism comprises an ejector rod fixedly arranged at the telescopic end of the telescopic mechanism and a plurality of connecting pieces rotationally connected in sequence, one ends of the connecting pieces rotationally connected in sequence are rotationally connected with the ejector rod, and a rotatable ball is arranged at the rotating axis of every two adjacent connecting pieces. According to the steam pipeline bending device, the ball body is controlled by the telescopic mechanism to slide into the steam pipeline, and the inner wall of the steam pipeline is supported by the ball body during bending operation, so that the steam pipeline can be prevented from being damaged, and the bending effect and the performance of the bent steam pipeline are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline bending, in particular to a steam pipeline bending device. Background Art

[0002] In order to ensure the safe operation of the steam system, a compensation area is usually set on the steam pipe, and the steam pipe needs to be bent; in order to reduce the stress of the pipe and make the pipe evenly stressed, the pipe is also bent; due to space and site environment reasons, the steam pipe is often bent. Therefore, when laying the steam pipe, it is necessary to use a bending device to bend the steam pipe.

[0003] During bending, the steam pipe is fixed by a fixing fixture, and then the bending machine applies pressure to the pipe through the bending rollers thereon to bend it. During the bending process, the inside of the pipe cannot be effectively supported, which can easily cause damage to the pipe during the bending process, thereby reducing the quality of the pipe after bending. Therefore, a steam pipe bending device is proposed. Utility Model Content

[0004] In view of the problem in the above or prior art that the inside of the pipe cannot be effectively supported during the bending process, which easily causes the pipe to be damaged during the bending process, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a bending device for a steam pipe.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a bending device for a steam pipe, characterized in that: it includes a bending machine body, a telescopic mechanism and a limiting sleeve are fixedly provided on the top of the bending machine body, the inner wall of the limiting sleeve is slidably connected with a supporting mechanism, and the telescopic mechanism can control the supporting mechanism to slide on the inner wall of the limiting sleeve; the supporting mechanism includes a push rod fixedly provided at the telescopic end of the telescopic mechanism, and a plurality of connecting members rotatably connected in sequence, one end of the plurality of connecting members rotatably connected in sequence is rotatably connected to the push rod, and a rotatable sphere is provided at the rotation axis of every two adjacent connecting members; when the bending machine body bends the pipe, the connecting member rotates together with the pipe.

[0007] As a preferred solution of the bending device of the steam pipe of the utility model, wherein: the sphere is provided with two symmetrically arranged and mutually connected fan-shaped grooves, and a short axis is provided inside the fan-shaped grooves.

[0008] As a preferred solution of the bending device of the steam pipe of the utility model, the connecting part includes a connecting rod, and a slot and a notch respectively arranged at both ends of the connecting rod, a No. 1 axial hole is arranged on the surface of the slot, and a No. 2 axial hole is arranged on the surface of the notch.

[0009] As a preferred solution of the bending device of the steam pipe of the utility model, wherein: the interior of the connecting rod is provided with a receiving groove and a buffer groove, the inner wall of the receiving groove is provided with a positioning groove and a storage groove; the supporting mechanism also includes a slide bar slidably arranged on the inner wall of the receiving groove, the outer wall of the slide bar is fixed with a pushing block, the outer wall of the slide bar is opened with a receiving hole, the interior of the receiving hole is slidably connected with a movable clamping block; the interior of the buffer groove is fixed with a spring, and the interior of the storage groove is provided with an elastic member.

[0010] As a preferred solution of the bending device of the steam pipe of the utility model, wherein: an arc-shaped head is provided at one end of the slide bar.

[0011] As a preferred solution of the steam pipe bending device of the utility model, wherein: the upper surface and the lower surface of the slide bar are both provided with parallel inclined grooves.

[0012] As a preferred solution of the bending device of the steam pipe of the utility model, wherein: the inner wall of the slot is provided with an inclined surface.

[0013] As a preferred solution of the steam pipe bending device of the utility model, wherein: the outer wall of the connecting rod is provided with an arc-shaped groove; and the slot is provided with an arc-shaped abutment block.

[0014] As a preferred solution of the bending device of the steam pipe of the utility model, wherein: a parallel sliding block is provided on the outer wall of one end of the connecting rod close to the second shaft hole; and a deflection groove is provided in the sphere.

[0015] As a preferred solution of the steam pipe bending device of the utility model, wherein: a fan-shaped opening is provided at the end of the push rod, and a fixing bolt is penetrated through the end of the push rod.

[0016] The beneficial effects of the steam pipe bending device of the utility model: the utility model controls the ball to slide into the interior of the steam pipe through the telescopic mechanism until the ball fills the part of the pipe that needs to be bent. When the bending machine body performs the bending operation, the inner wall of the steam pipe is supported by the ball, which can avoid damage to the steam pipe and improve the bending effect and the performance of the steam pipe after bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1This is an overall schematic diagram of the steam pipe bending device.

[0019] Figure 2 This is a schematic diagram of the supporting mechanism structure of the steam pipe bending device.

[0020] Figure 3 Open the schematic diagram for the sphere of the bending device of the steam pipe.

[0021] Figure 4 A top-down view of the support mechanism of the steam pipe bending device.

[0022] Figure 5 A side sectional view of the support mechanism of the steam pipe bending device.

[0023] Figure 6 This is a schematic diagram of the internal structure of the support mechanism of the steam pipe bending device.

[0024] Figure 7 for Figure 4 Enlarged view of point A in the middle.

[0025] Figure 8 for Figure 5 Enlarged view of point B in the middle.

[0026] Fig. 9 This is a structural diagram of the connecting rod installation state.

[0027] Fig.10 This is a schematic diagram of the structure with the connecting rod disassembled.

[0028] In the figure: 100, bending machine body; 200, telescopic mechanism; 300, limit sleeve; 400, supporting mechanism; 401, top rod; 401a, fan-shaped opening; 401b, fixing bolt; 402, connecting piece; 402a, connecting rod; 402b, slot; 402c, notch; 402d, No. 1 shaft hole; 402e, No. 2 shaft hole; 402f, spring; 402g, elastic member; 402h, parallel slider; 402a-1, accommodating slot; 402a-2, buffer slot; 402a-3, positioning slot; 402a-4, arc slot; 402a-5, storage slot; 402b-1, inclined plane; 402b-2, arc-shaped resistance block; 403, sphere; 403a, fan-shaped slot; 403b, short axis; 403c, deflection slot; 404, slide bar; 404a, push block; 404b, arc-shaped head; 404c, parallel inclined slot; 404d, receiving hole; 404e, movable block. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1, reference Figures 1 to 6 , which is the first embodiment of the utility model, and this embodiment provides a steam pipe bending device, including a bending machine body 100, a telescopic mechanism 200 and a limiting sleeve 300 are fixedly provided on the top of the bending machine body 100, and a supporting mechanism 400 is slidably connected to the inner wall of the limiting sleeve 300, and the telescopic mechanism 200 can control the supporting mechanism 400 to slide on the inner wall of the limiting sleeve 300; in this embodiment, the telescopic mechanism 200 and the limiting sleeve 300 are coaxially arranged, and the telescopic end of the telescopic mechanism 200 is inserted into the interior of the limiting sleeve 300, and the supporting mechanism 400 can support the interior of the steam pipe when the steam pipe is bent.

[0033] Furthermore, the support mechanism 400 includes a push rod 401 fixedly arranged at the telescopic end of the telescopic mechanism 200, and a plurality of connecting members 402 rotatably connected in sequence, one end of the plurality of connecting members 402 rotatably connected in sequence is rotatably connected to the push rod 401, and a rotatable ball 403 is provided at the rotation axis of every two adjacent connecting members 402; in the present embodiment, the end of the push rod 401 away from the telescopic mechanism 200 is a semicircular structure, and the number of connecting members 402 can be set according to the length of the pipe bending part, and the plurality of connecting members 402 are rotatably connected and connected end to end, and a rotatable ball 403 is provided outside the connection between the connecting members 402, and the diameter of the ball 403 is the same as the diameter of the inner wall of the pipe to be bent, and the ball 403 can rotate outside the connecting member 402. It should be noted that the end of the plurality of connecting members 402 rotatably connected in sequence away from the push rod 401 can also be provided with a ball 403, and when the bending machine body 100 bends the pipe, the connecting member 402 rotates together with the pipe.

[0034] When in use, the steam pipe is placed on the bending machine body 100, and the steam pipe is fixed by the fixing clamp on the bending machine body 100. The axis of the steam pipe coincides with the axis of the limiting sleeve 300, and one end of the steam pipe is placed as close to the end of the limiting sleeve 300 as possible. Before bending, the supporting mechanism 400 is controlled to slide by the telescopic mechanism 200. Under the guidance of the limiting sleeve 300, the ball 403 slides into the interior of the steam pipe until the ball 403 fills the part of the pipe that needs to be bent. At this time, the bending operation is performed by the bending machine body 100. When bending, the inner wall of the steam pipe is supported by the ball 403. During the bending process of the pipe, the connecting parts 402 will be deflected, so that the ball 403 is arranged in a curved shape, which is consistent with the shape of the pipe to be bent, and can be suitable for different bending angles. The ball 403 supports the inside of the pipe, and the steam pipe can be prevented from being damaged during the bending process, thereby improving the bending effect and the performance of the steam pipe after bending.

[0035] Example 2, reference Figure 1 to Figure 6 , which is the second embodiment of the utility model. Different from the previous embodiment, a fan-shaped opening 401a is provided at the end of the top rod 401, and a fixing bolt 401b is penetrated through the end of the top rod 401; in this embodiment, the setting of the fan-shaped opening 401a can make the end of the connecting member 402 inserted into the top rod 401 deflectable, and the connecting member 402 and the top rod 401 are connected by the fixing bolt 401b.

[0036] Preferably, two symmetrically arranged and interconnected fan-shaped grooves 403a are provided in the sphere 403, and a short shaft 403b is provided inside the fan-shaped groove 403a. In this embodiment, the fan-shaped groove 403a can be opened to allow the connecting member 402 to deflect, and the short shaft 403b is used to rotationally connect the end of the connecting member 402.

[0037] Specifically, the connecting member 402 includes a connecting rod 402a, and a slot 402b and a notch 402c respectively arranged at both ends of the connecting rod 402a. The surface of the slot 402b is provided with a No. 1 axial hole 402d, and the surface of the notch 402c is provided with a No. 2 axial hole 402e. In this embodiment, the slot 402b is opened in the middle of one end of the connecting rod 402a, and the notch 402c is opened on both sides of the other end of the connecting rod 402a. The connecting rods 402a can be plugged in and connected through the slot 402b and the notch 402c. The No. 1 axial hole 402d and the No. 2 axial hole 402e are set through the connecting rod 402a. After the connecting rods 402a are plugged in and connected with each other, the No. 1 axial hole 402d and the No. 2 axial hole 402e can be in an aligned state, and the No. 1 axial hole 402d and the No. 2 axial hole 402e are both rotatably connected to the short shaft 403b.

[0038] The rest of the structure is the same as that of Example 1.

[0039] When bending, the connecting rod 402a rotates on the outer wall of the short axis 403b, and the outer wall of the connecting rod 402a can push the inner wall of the fan-shaped groove 403a to rotate the spheres 403, so that the multiple spheres 403 are arranged in a curved shape.

[0040] Example 3, reference Figures 1 to 10 , which is the third embodiment of the utility model. Different from the previous embodiment, the interior of the connecting rod 402a is provided with a receiving groove 402a-1 and a buffer groove 402a-2, and the inner wall of the receiving groove 402a-1 is provided with a positioning groove 402a-3 and a storage groove 402a-5; the supporting mechanism 400 also includes a slide bar 404 slidably arranged on the inner wall of the receiving groove 402a-1, and the outer wall of the slide bar 404 is fixedly provided with a pushing block 404a, and the outer wall of the slide bar 404 is provided with a receiving hole 404d, and the interior of the receiving hole 404d is slidably connected with a movable block 404e; in this embodiment, the receiving groove 402a-1 and the buffer groove 402a-2 are communicated with each other, the positioning groove 402a-3 and the storage groove 402a-5 are arranged opposite to each other, the outer wall of the pushing block 404a is slidably connected with the inner wall of the buffer groove 402a-2, and the movable block 404e can slide into the positioning groove 402a-3.

[0041] Preferably, a spring 402f is fixed inside the buffer groove 402a-2, and an elastic member 402g is provided inside the storage groove 402a-5. In this embodiment, the elastic force of the spring 402f can make the slide bar 404 have a tendency to slide out of the accommodating groove 402a-1, and the elastic member 402g can make the movable block 404e have a tendency to slide toward the positioning groove 402a-3.

[0042] Specifically, an arc-shaped head 404b is provided at one end of the slide bar 404. In the present embodiment, the arc-shaped head 404b can form an annular structure with the end of the connecting rod 402a, so as to facilitate the rotational connection with the short shaft 403b.

[0043] Furthermore, parallel oblique grooves 404c are provided on the upper surface and the lower surface of the slide bar 404. In the present embodiment, the provision of the parallel oblique grooves 404c can facilitate the sliding and disengagement of the short shaft 403b.

[0044] Preferably, an inner wall of the slot 402b is provided with an inclined surface 402b-1.

[0045] Furthermore, an arc-shaped groove 402a-4 is provided on the outer wall of the connecting rod 402a; an arc-shaped resistance block 402b-2 is provided on the slot 402b. In this embodiment, the arc-shaped resistance block 402b-2 can enter the arc-shaped groove 402a-4 after rotation, so that the end of the arc-shaped resistance block 402b-2 squeezes the movable block 404e to slide.

[0046] Furthermore, a parallel slider 402h is provided on the outer wall of one end of the connecting rod 402a close to the second shaft hole 402e; a deflection groove 403c is provided in the sphere 403, and the opening of the deflection groove 403c allows the parallel slider 402h to rotate.

[0047] The rest of the structure is the same as that of Example 2.

[0048] When in use, the number of balls 403 is adjusted according to the use requirements. When removing the balls 403, refer to Fig.10 , rotate the connecting rod 402a of the part to be disassembled, so that the arc-shaped resistance block 402b-2 is inserted into the arc groove 402a-4, and the arc-shaped resistance block 402b-2 resists the movable block 404e, so that the movable block 404e and the positioning groove 402a-3 are separated, and the elastic member 402g is compressed. Under the elastic force of the spring 402f, the slide bar 404 slides out of the accommodating groove 402a-1. At this time, the parallel inclined groove 404c is aligned with the second shaft hole 402e, and the two connecting rods 402a are in contact with the inner wall of the fan-shaped groove 403a, and the two side surfaces of the parallel inclined groove 404c and one side surface of the fan-shaped groove 403a are flat. In the parallel state, a side of the parallel slider 402h close to the side surface is flush with the side surface, and slides along the direction of the side surface, so that the short shaft 403b slides out of the parallel inclined groove 404c, and the parallel slider 402h slides along the inner wall of the fan-shaped groove 403a, and finally detaches the end of the connecting rod 402a where the slide bar 404 is located. During disassembly, the two connecting rods 402a need to be rotated to the maximum bending angle to complete the disassembly, which can effectively avoid the separation phenomenon during the bending process. In the process of bending, the direction of the bending is controlled to be opposite to the direction of disassembly, which can prevent the separation phenomenon during the bending process.

[0049] When installing the sphere 403, the parallel slider 402h is pressed against the surface of the fan-shaped groove 403a to smooth the connecting rod 402a. The setting of the parallel slider 402h can facilitate the parallel sliding of the connecting rod 402a. Finally, the short shaft 403b slides through the parallel inclined groove 404c and enters the second shaft hole 402e. At this time, by rotating the connecting rod 402a, the connecting rod 402a rotates, and the inclined surface 402b-1 cooperates with the arc-shaped contact block 402b-2 to squeeze the arc head 404b, so that the slide bar 404 is inserted into the receiving groove 402a-1, and the arc head 404b fits the surface of the short shaft 403b. The receiving hole 404d and the positioning groove 402a-3 are aligned. Under the elastic force of the elastic member 402g, the movable block 404e is stuck in the positioning groove 402a-3 and the receiving hole 404d, and the slide bar 404 is clamped and positioned. Refer to Fig. 9 After the clamping, the connector 402 can rotate on the outer wall of the short shaft 403b to perform the pipe bending operation. Fig. 9The pipe is bent in the direction shown, and the end of the connecting rod 402a bears the tension during bending, which can increase the strength of the connection of the connecting rod 402a, and the inclined surface 402b-1 cooperates with the arc-shaped resistance block 402b-2 to resist the arc-shaped head 404b, further increasing the strength of the connection.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A steam pipe bending device, characterized in that: The invention comprises a bending machine body (100), wherein a telescopic mechanism (200) and a limiting sleeve (300) are fixedly provided on the top of the bending machine body (100), and the inner wall of the limiting sleeve (300) is slidably connected to a supporting mechanism (400), and the telescopic mechanism (200) can control the supporting mechanism (400) to slide on the inner wall of the limiting sleeve (300); The support mechanism (400) comprises a top rod (401) fixedly arranged at the telescopic end of the telescopic mechanism (200), and a plurality of connecting members (402) rotatably connected in sequence, one end of the plurality of connecting members (402) rotatably connected in sequence is rotatably connected to the top rod (401), and a rotatable ball (403) is provided at the rotation axis of every two adjacent connecting members (402); When the bending machine body (100) bends the pipe, the connecting piece (402) rotates together with the pipe.

2. The steam pipe bending device according to claim 1, characterized in that: The sphere (403) is provided with two symmetrically arranged and mutually connected fan-shaped grooves (403a), and a short axis (403b) is provided inside the fan-shaped groove (403a).

3. The steam pipe bending device according to claim 2, characterized in that: The connecting member (402) comprises a connecting rod (402a), and a slot (402b) and a notch (402c) respectively arranged at two ends of the connecting rod (402a); a first shaft hole (402d) is arranged on the surface of the slot (402b), and a second shaft hole (402e) is arranged on the surface of the notch (402c).

4. The steam pipe bending device according to claim 3, characterized in that: The connecting rod (402a) is provided with a receiving groove (402a-1) and a buffer groove (402a-2) inside, and the inner wall of the receiving groove (402a-1) is provided with a positioning groove (402a-3) and a storage groove (402a-5); The support mechanism (400) further comprises a slide bar (404) slidably arranged on the inner wall of the receiving groove (402a-1), a push block (404a) being fixedly arranged on the outer wall of the slide bar (404), a receiving hole (404d) being opened on the outer wall of the slide bar (404), and a movable block (404e) being slidably connected inside the receiving hole (404d); A spring (402f) is fixedly disposed inside the buffer groove (402a-2), and an elastic member (402g) is disposed inside the storage groove (402a-5).

5. The steam pipe bending device according to claim 4, characterized in that: One end of the slide bar (404) is provided with an arc-shaped head (404b).

6. The steam pipe bending device according to claim 5, characterized in that: The upper surface and the lower surface of the slide bar (404) are both provided with parallel inclined grooves (404c).

7. The steam pipe bending device according to claim 6, characterized in that: The inner wall of the slot (402b) is provided with an inclined surface (402b-1).

8. The steam pipe bending device according to claim 7, characterized in that: The outer wall of the connecting rod (402a) is provided with an arc-shaped groove (402a-4); The slot (402b) is provided with an arc-shaped abutment block (402b-2).

9. The steam pipe bending device according to claim 8, characterized in that: A parallel sliding block (402h) is provided on the outer wall of one end of the connecting rod (402a) close to the second shaft hole (402e); A deflection groove (403c) is provided in the spherical body (403).

10. The steam pipe bending device according to any one of claims 1 to 9, characterized in that: The end of the push rod (401) is provided with a fan-shaped opening (401a), and the end of the push rod (401) is penetrated by a fixing bolt (401b).

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