Reducer rapid assembling device

Abstract

The utility model provides a quick assembling device for reducing pipes. The top and the bottom of a main body are respectively provided with a supporting rod mechanism. An upper radial expansion supporting rod is arranged at the top, a lower radial expansion supporting rod is arranged at the bottom, three supporting rods are arranged on each layer, glands (including an upper gland and a lower gland) are installed on the top and the bottom respectively, and the glands fasten the upper radial expansion supporting rod and the lower radial expansion supporting rod on the body respectively. When connecting pipe and flange assembling operation is carried out, the device is used for aligning a welding joint, connecting pipes and flanges with different pipe diameters are sequentially arranged on the device in a sleeving mode in advance, then handles (the upper handle and the lower handle) are rotated respectively, the gland rotates accordingly, the radial expansion supporting rod is ejected outwards and finally abuts against the inner diameter of the connecting pipe and the inner diameter of the flange respectively, and the two parts are located at the concentric position; and the assembly operation is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of riveted and welded reducer pipes, and in particular to a rapid assembling device for reducer pipes. Background Art

[0002] The existing assembly process is to place the reducer on the operating table first, with the connecting pipe facing up, and then connect the other connecting pipe with the bevel facing down. The operator then relies on his skills to find the concentric position between the reducers and adjust the misalignment of the bevel of the circumferential weld joint. The operation is completed manually, and the entire process requires human assistance or lifting to adjust the concentricity and misalignment of the reducer. At the same time, measuring tools are also required for inspection. The operation process is completely dependent on the skills and experience of the personnel, which seriously restricts production efficiency and cannot guarantee quality. Summary of the Invention

[0003] In response to the above technical problems, a device is provided that can quickly achieve the centering of reducer pipe groups. The utility model integrates manufacturing and testing into the device, simplifying the operation difficulty and process.

[0004] The technical means adopted by this utility model are as follows:

[0005] A device for quickly assembling reducers, comprising:

[0006] a first inner diameter positioning assembly for positioning with an inner hole of a first diameter pipe and a second inner diameter positioning assembly for positioning with an inner hole of a second diameter pipe;

[0007] The first inner diameter positioning assembly and the second inner diameter positioning assembly are connected via a connecting body;

[0008] The upper end of the main body is provided with an upper support seat, and the lower end is provided with a lower fixing seat;

[0009] The first inner diameter positioning assembly includes:

[0010] upper gland, upper radial expansion support rod and upper drive handle;

[0011] The number of the upper radial expansion support rods is greater than or equal to 3, and they are L-shaped claws;

[0012] The upper end surface of the upper support seat is provided with a sliding groove which slides radially with the upper radial expansion support rod, and the short side straight portion of the upper radial expansion support rod is embedded in the sliding groove;

[0013] An upper rotating shaft is provided in the middle of the upper support seat, and the upper gland is centrally rotatably assembled on the upper rotating shaft and is processed with arc-shaped guide bar holes extending outward from the center of the circle corresponding to the number of radially expanding support rods. The positions of the arc-shaped guide bar holes correspond to the positions of the radially expanding support rods.

[0014] The upper driving handle is used to drive the upper gland to rotate;

[0015] The radial expansion support rod is embedded in the chute and is provided with an upper column, which extends out of the arc-shaped guide strip hole of the upper pressure cover;

[0016] The second inner diameter positioning assembly includes:

[0017] lower gland, lower radial expansion support rod, and lower drive handle;

[0018] The number of the lower radial expansion support rods is greater than or equal to 3, and they are L-shaped claws;

[0019] The lower end surface of the lower support seat is provided with a slide groove I for radial sliding with the lower radial expansion support rod, and the short side straight portion of the lower radial expansion support rod is embedded in the slide groove I;

[0020] A lower rotating shaft is provided in the middle of the lower support seat, and the lower gland is centrally rotatably assembled on the lower rotating shaft, and is processed with arc-shaped guide strip holes extending outward from the center of the circle corresponding to the number of lower radial expansion support rods, and the positions of the arc-shaped guide strip holes correspond to the positions of the lower radial expansion support rods;

[0021] The lower radial expansion support rod is embedded in the slide groove I part and is provided with a lower column, which extends out of the arc-shaped guide strip hole I of the lower pressure cover;

[0022] The lower driving handle is fixed to the lower pressing cover and is used for driving the lower pressing cover to rotate.

[0023] Further,

[0024] The lower drive handle and the upper drive handle are operated on the same side, that is, the lower drive handle extends to the upper drive handle operating area. This structure makes it convenient for the user to operate the first inner diameter positioning component and the expansion positioning component for the second diameter pipe inner hole positioning component on the same side.

[0025] Further,

[0026] The outer walls of the lower radial expansion support rod and the upper radial expansion support rod are provided with an anti-slip rubber layer. This structure is used to ensure that the lower radial expansion support rod and the upper radial expansion support rod provide damping after contacting the inner wall of the tube after expansion.

[0027] The operating process of the device of the present invention using the above-mentioned technical solution is to pre-place the docking reducers on the device (the first inner diameter positioning component and the second inner hole positioning component) from bottom to top, and then turn the handles twice (the lower drive handle and the upper drive handle), and the pressure cover (the upper pressure cover and the lower pressure cover) will rotate accordingly to make the support rods (the lower radial expansion support rod and the upper radial expansion support rod) slide (radially expand), respectively supporting the reducers to complete the pairing operation, which can ensure the concentricity and misalignment of the reducers, greatly reduce the difficulty and time of the operation, and improve production efficiency and pairing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0030] Figure 2 for Figure 1 AA section view.

[0031] Figure 3 It is a top view of the utility model.

[0032] Figure 4 This is an exploded view of the structure of the utility model.

[0033] Figure 5 These are three-dimensional images of the main body of the utility model from two perspectives.

[0034] Figure 6 This is a schematic diagram of the structure of the utility model when in use (open state).

[0035] Figure 7 for Figure 6 BB cross-section view.

[0036] Figure 8 for Figure 6 CC cross-sectional view.

[0037] Figure 9 for Figure 6 DD cross-sectional view.

[0038] Figure 10 This is a three-dimensional diagram of the locked and opened states of the utility model.

[0039] In the picture:

[0040] 1. Nut; 2. Upper radial expansion support rod; 21. Upper column; 22. Lower column; 3. Tighten the nut on the pressure cap; 4. Upper handle; 5. Upper pressure cap; 51. Arc guide bar hole; 6. Main body; 61. Slide; 63. Upper shaft; 64. Lower shaft; 65. Slide I; 7. Lower radial expansion support rod; 8. Ball bearing; 9. Lower pressure cap; 91. Arc guide bar hole I; 10. Lower handle. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0045] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0047] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0048] like Figures 1 to 10 The utility model provides a device for quickly assembling reducers, comprising:

[0049] a first inner diameter positioning assembly for positioning with an inner hole of a first diameter pipe and a second inner diameter positioning assembly for positioning with an inner hole of a second diameter pipe;

[0050] The first inner diameter positioning assembly and the second inner diameter positioning assembly are connected via a connecting body 6;

[0051] The upper end of the main body 6 is provided with an upper support seat, and the lower end is provided with a lower fixing seat;

[0052] The first inner diameter positioning assembly includes:

[0053] Upper gland 5, upper radial expansion support rod 2 and upper drive handle 4;

[0054] The number of the upper radial expansion support rods 2 is greater than or equal to 3, and they are L-shaped claws;

[0055] The upper end surface of the upper support seat is provided with a slide groove 61 which slides radially with the upper radial expansion support rod 2, and the short side straight portion of the upper radial expansion support rod 2 is embedded in the slide groove 61;

[0056] An upper rotating shaft 63 is provided in the middle of the upper support seat. The upper pressure cover 5 is centrally mounted on the upper rotating shaft 63 and is processed with arc-shaped guide bar holes 51 extending outward from the center of the circle corresponding to the number of radially expanding support rods 2. The positions of the arc-shaped guide bar holes 51 correspond to the positions of the radially expanding support rods 2.

[0057] A ball 8 is provided between the upper end surface of the upper support seat and the upper pressure cover 5 to assist the upper pressure cover 5 in rotating;

[0058] The upper driving handle 4 is used to drive the upper pressing cover 5 to rotate;

[0059] The radial expansion support rod 2 is embedded in the slide groove 61 and is provided with an upper column 21, which extends out of the arc-shaped guide strip hole 51 of the upper pressure cover 5;

[0060] The second inner diameter positioning assembly includes:

[0061] Lower gland 9, lower radial expansion support rod 7 and lower drive handle 10;

[0062] The number of the lower radial expansion support rods 7 is greater than or equal to 3, and they are L-shaped claws;

[0063] The lower end surface of the lower support seat is provided with a slide groove I65 for radially sliding with the lower radial expansion support rod 7, and the short side straight portion of the lower radial expansion support rod 7 is embedded in the slide groove I65;

[0064] A lower rotating shaft 64 is provided in the middle of the lower support seat. The lower gland 9 is centrally mounted on the lower rotating shaft 64 and is provided with arc-shaped guide holes 91 extending outward from the center of the circle corresponding to the number of the lower radial expansion support rods 7. The positions of the arc-shaped guide holes 91 correspond to the positions of the lower radial expansion support rods 7.

[0065] A ball bearing 8 is also provided between the lower pressing cover 9 and the lower end surface of the lower support seat to assist the lower pressing cover 9 in rotating;

[0066] The lower radial expansion support rod 7 is embedded in the sliding groove Ⅰ 65 and is provided with a lower column 22, which extends out of the arc-shaped guide strip hole Ⅰ 91 of the lower pressure cover 9;

[0067] The lower driving handle 10 is fixed to the lower pressing cover 9 and is used to drive the lower pressing cover 9 to rotate.

[0068] Further,

[0069] The lower drive handle 10 and the upper drive handle 4 are operated on the same side, that is, the lower drive handle 10 extends to the operating area of ​​the upper drive handle 4. This structure makes it convenient for the user to operate the first inner diameter positioning component and the expansion positioning component for the second diameter pipe inner hole positioning component on the same side.

[0070] Further,

[0071] The outer walls of the lower radial expansion support rod 7 and the upper radial expansion support rod 2 are provided with an anti-slip rubber layer. This structure is used to ensure that the lower radial expansion support rod 7 and the upper radial expansion support rod 2 provide damping after contacting the inner wall of the tube after expansion.

[0072] Device principle:

[0073] (1) The top and bottom of the main body 6 are each provided with a support rod mechanism. The top is an upper radial expansion support rod 1, and the bottom is a lower radial expansion support rod 7. Each layer has three support rods, which can be expanded in three directions at the same time, with an angle of 120 degrees.

[0074] (2) Glands (upper gland 5 and lower gland 9) are installed on the top and bottom respectively, which fasten the upper radial expansion support rod 2 and the lower radial expansion support rod 7 to the main body 6 respectively. A large number of balls 8 are installed between the gland and the main body 6 (visible in the BB view) to reduce the friction resistance of the gland when it rotates.

[0075] (3) When assembling the pipe flange, use the device to align the welding joint, put the pipes and flanges of different diameters on the device in sequence, and then turn the handles (upper drive handle 4 and lower drive handle 10) respectively. The pressure cover will rotate accordingly, and the radial expansion support rod will be pushed outward (visible in the CC view). Finally, the inner diameters of the pipe and flange are respectively supported, so that the two parts are in a concentric position, and the assembly operation is completed.

[0076] It can ensure the concentricity and misalignment of the reducer, greatly reduce the difficulty and time of the operation, and improve production efficiency and assembly quality.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for quickly assembling reducers, characterized in that: include: a first inner diameter positioning assembly for positioning with an inner hole of a first diameter pipe and a second inner diameter positioning assembly for positioning with an inner hole of a second diameter pipe; The first inner diameter positioning component and the second inner diameter positioning component are connected via a connecting body (6); The upper end of the main body (6) is provided with an upper support seat, and the lower end is provided with a lower fixing seat; The first inner diameter positioning assembly includes: An upper gland (5), an upper radial expansion support rod (2) and an upper drive handle (4); The number of the upper radial expansion support rods (2) is greater than or equal to 3, and they are L-shaped claws; The upper end surface of the upper support seat is provided with a sliding groove (61) that slides radially with the upper radial expansion support rod (2), and the short side straight portion of the upper radial expansion support rod (2) is embedded in the sliding groove (61); An upper rotating shaft (63) is provided in the middle of the upper support seat, and the upper pressure cover (5) is centrally rotatably assembled on the upper rotating shaft (63), and is processed with arc-shaped guide strip holes (51) extending outward from the center of the circle in a number corresponding to the number of radially expanding support rods (2). The positions of the arc-shaped guide strip holes (51) correspond to the positions of the radially expanding support rods (2); The upper driving handle (4) is used to drive the upper pressing cover (5) to rotate; The portion of the radially expanding support rod (2) embedded in the slide groove (61) is provided with an upper column (21), and the upper column (21) extends out of the arc-shaped guide strip hole (51) of the upper pressure cover (5); The second inner diameter positioning assembly includes: A lower gland (9), a lower radial expansion support rod (7) and a lower drive handle (10); The number of the lower radial expansion support rods (7) is greater than or equal to 3 and they are L-shaped claws; The lower end surface of the lower support seat is provided with a slide groove I (65) which slides radially with the lower radial expansion support rod (7), and the short side straight portion of the lower radial expansion support rod (7) is embedded in the slide groove I (65); A lower rotating shaft (64) is provided in the middle of the lower support seat, and the lower pressure cover (9) is centrally rotatably assembled on the lower rotating shaft (64), and is processed with arc-shaped guide bar holes I (91) extending outward from the center of the circle in a number corresponding to the number of lower radial expansion support rods (7). The position of the arc-shaped guide bar holes I (91) corresponds to the position of the lower radial expansion support rods (7); The lower radial expansion support rod (7) is embedded in the sliding groove I (65) and is provided with a lower column (22), and the lower column (22) extends out of the arc-shaped guide strip hole I (91) of the lower pressure cover (9); The lower driving handle (10) is fixed to the lower pressing cover (9) and is used for driving the lower pressing cover (9) to rotate.

2. A device for quickly assembling reducers according to claim 1, characterized in that: The lower driving handle (10) and the upper driving handle (4) are operated on the same side, that is, the lower driving handle (10) extends to the operating area of ​​the upper driving handle (4).

3. A device for quickly assembling reducers according to claim 1 or 2, characterized in that: The outer walls of the lower radial expansion support rod (7) and the upper radial expansion support rod (2) are provided with an anti-slip rubber layer.

Images