Auxiliary device for flange butt joint

By designing an auxiliary device for flange docking, and using a motor drive to achieve automatic alignment and clamping of the flange, the problem of laborious manual rotation in the existing technology is solved, and docking efficiency and accuracy are improved.

CN224088334UActive Publication Date: 2026-04-07YANCHENG YOUHAI PETROCHEM MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The existing flange connection mainly relies on manual operation, which requires manual rotation to align the two sets of bolt holes, and is especially laborious when the weight is large.

Method used

An auxiliary device for flange docking was designed, comprising a base, a fixing frame, a lifting clamping plate mechanism, a rotating cylinder, and a geared motor. The automatic alignment and clamping of the flange are achieved through motor drive.

Benefits of technology

It simplifies the flange connection process, reduces manual labor intensity, and improves connection efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The auxiliary device comprises a base, a fixing frame is installed on the top of the base, a containing groove is formed in the inner side of the fixing frame, a lifting clamping plate mechanism used in cooperation with the containing groove is installed on the top of the fixing frame, an installation plate is arranged on the top of the base in a sliding mode, and a limiting block is installed above the installation plate. A circular through groove is formed in the limiting block, a rotating cylinder is rotationally connected to the inner side of the circular through groove, an annular rack is fixedly arranged on the outer side of one end of the rotating cylinder and engaged with a first gear, the first gear is installed on the outer side of a rotating rod, and one end of the rotating rod is connected with a gear motor. According to the auxiliary device for flange butt joint, in order to solve the problems that existing flange butt joint mainly depends on manual operation, and flanges need to be rotated manually in the connecting process so that two sets of bolt holes can be aligned, a fixing frame is installed at the top of the base, and a containing groove is formed in the inner side of the fixing frame.
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Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically to an auxiliary device for flange connection. Background Technology

[0002] A flange, also called a flange plate or flange, is a part used to connect shafts, pipe ends, and equipment inlets and outlets, such as a speed reducer flange, to connect two pieces of equipment. A flange connection or flange joint refers to a detachable connection consisting of a flange, gasket, and bolts forming a combined sealing structure. Traditional flange connection mainly relies on manual operation, requiring manual rotation of the flange to align the two sets of bolt holes. If the flange is heavy, manual rotation is laborious; therefore, an auxiliary device for flange connection is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide an auxiliary device for flange docking, so as to solve the problem mentioned in the background art that the existing flange docking mainly relies on manual operation, and the flange needs to be rotated manually during the connection process to align the two sets of bolt holes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for flange docking, comprising a base, a fixing frame mounted on the top of the base, and a placement groove provided on the inner side of the fixing frame; a lifting clamping plate mechanism that cooperates with the placement groove is mounted on the top of the fixing frame; an mounting plate is slidably mounted on the top of the base, and a limiting block is mounted above the mounting plate; a circular through groove is provided on the limiting block, and a rotating cylinder is rotatably connected to the inner side of the circular through groove; an annular rack is fixedly mounted on the outer side of one end of the rotating cylinder, and the annular rack meshes with a first gear; the first gear is mounted on the outer side of a rotating rod, and one end of the rotating rod is connected to a reduction motor.

[0005] Preferably, the lifting clamping plate mechanism includes a clamping plate, and the clamping plate is connected to the lifting plate through a connecting block. Two sets of rack plates are installed on the top of the lifting plate, and one end of the rack plate extends through to the outside of the fixed frame and meshes with a second gear set on the top of the outside of the fixed frame. The second gear is installed on the outside of the drive rod, and one end of the drive rod is connected to a second drive motor.

[0006] The above technical solution facilitates the clamping and limiting of the flange.

[0007] Preferably, the inner side of the fixed frame is symmetrically provided with limiting slide rods that are slidably connected to the lifting plate.

[0008] The above technical solutions improve the stability of the lifting platform's movement.

[0009] Preferably, the bottom of the mounting plate is provided with a sliding block, and the sliding block is connected to a lead screw mechanism that is rotatably arranged inside the sliding groove. One end of the lead screw mechanism is connected to a third drive motor.

[0010] The above technical solution facilitates the movement of the drive mounting plate.

[0011] Preferably, a flange placement groove is fixedly provided inside the rotating cylinder, and a flange limiting plate mechanism that cooperates with the flange placement groove is installed inside the rotating cylinder.

[0012] The above technical solution facilitates the clamping and limiting of the flange.

[0013] Preferably, the flange limiting plate mechanism includes a limiting plate, and the limiting plate is connected to the inner wall of the rotating cylinder via an electric telescopic rod.

[0014] The above technical solution facilitates the clamping and limiting of the flange.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This flange docking auxiliary device solves the problem that existing flange docking mainly relies on manual operation, requiring manual rotation of the flange to align the two sets of bolt holes during the connection process. It solves this problem by installing a fixed frame on the top of the base, with a placement groove on the inner side of the fixed frame. A lifting clamping plate mechanism that works with the placement groove is installed on the top of the fixed frame. An installation plate is slidably mounted on the top of the base, and a limit block is installed above the installation plate. The limit block has a circular through groove, and a rotating cylinder is rotatably connected to the inner side of the circular through groove. A ring-shaped rack is fixedly installed on the outer side of the end, and the ring-shaped rack meshes with the first gear. The first gear is installed on the outer side of the rotating rod, and one end of the rotating rod is connected to the reduction motor. During docking, one set of flanges is fixed above the placement groove, and another set of flanges is fixed inside the rotating cylinder. After the fixing is completed, the third drive motor drives one set of flanges inside the rotating cylinder to move, thereby reducing the distance between the two sets of flanges. When the two sets of flanges are close to each other, the reduction motor is turned on. Under the action of the reduction motor, the rotating cylinder and the flanges fixed inside it rotate, thereby aligning them with the bolt holes of the other set of flanges. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the lifting clamping plate mechanism of this utility model;

[0018] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 4This is a schematic diagram of the internal structure of the rotating cylinder of this utility model.

[0020] In the diagram: 1. Base; 2. Fixing frame; 201. Placement slot; 3. Lifting clamping plate mechanism; 301. Clamping plate; 302. Connecting block; 303. Lifting plate; 304. Rack plate; 305. Second gear; 306. Drive rod; 307. Second drive motor; 308. Limiting slide rod; 4. Mounting plate; 401. Limiting block; 402. Rotating cylinder; 4021. Flange placement slot; 403. Ring rack; 404. First gear; 405. Rotating rod; 406. Gear motor; 5. Sliding block; 501. Screw mechanism; 502. Third drive motor; 6. Flange limiting plate mechanism; 601. Limiting plate; 602. Electric telescopic rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: an auxiliary device for flange docking, wherein a fixing frame 2 is installed on the top of the base 1, and a placement groove 201 is provided on the inner side of the fixing frame 2; an mounting plate 4 is slidably provided on the top of the base 1, and a limit block 401 is installed above the mounting plate 4.

[0023] Specifically, the top of the fixed frame 2 is equipped with a lifting clamping plate mechanism 3 that works in conjunction with the placement slot 201. The lifting clamping plate mechanism 3 includes a clamping plate 301, and the clamping plate 301 is connected to the lifting plate 303 through a connecting block 302. The top of the lifting plate 303 is equipped with two sets of rack plates 304, and one end of the rack plate 304 extends through to the outside of the fixed frame 2 and meshes with the second gear 305 set on the top of the outside of the fixed frame 2. The second gear 305 is installed on the outside of the drive rod 306, and one end of the drive rod 306 is connected to the second drive motor 307.

[0024] In a further embodiment, the inner side of the fixed frame 2 is symmetrically provided with limiting slide rods 308 that are slidably connected to the lifting plate 303. By setting the limiting slide rods 308, the moving direction of the lifting plate 303 can be limited, thereby improving the stability of the lifting plate 303 when it moves.

[0025] When it is necessary to limit the flange placed above the placement slot 201, the second drive motor 307 is turned on. Under the action of the second drive motor 307, the drive rod 306 drives the second gear 305 to rotate. The rotation of the second gear 305 can drive the rack plate 304 and the lifting plate 303 to move, thereby driving the clamping plate 301 to move down through the connecting block 302, so that the clamping plate 301 cooperates with the placement slot 201 to clamp and limit the flange.

[0026] Specifically, a circular through groove is provided on the limiting block 401, and a rotating cylinder 402 is rotatably connected to the inner side of the circular through groove. An annular rack 403 is fixedly provided on the outer side of one end of the rotating cylinder 402, and the annular rack 403 meshes with the first gear 404. The first gear 404 is installed on the outer side of the rotating rod 405, and one end of the rotating rod 405 is connected to the reduction motor 406.

[0027] Specifically, a flange placement groove 4021 is fixedly provided inside the rotating cylinder 402, and a flange limiting plate mechanism 6 that works in conjunction with the flange placement groove 4021 is installed inside the rotating cylinder 402. The flange limiting plate mechanism 6 includes a limiting plate 601, and the limiting plate 601 is connected to the inner wall of the rotating cylinder 402 through an electric telescopic rod 602.

[0028] When it is necessary to limit the flange placed above the flange placement slot 4021, the electric telescopic rod 602 is activated. Under the action of the electric telescopic rod 602, the limiting plate 601 moves, thereby cooperating with the flange placement slot 4021 to clamp and limit the flange, so that the flange is fixed inside the rotating cylinder 402.

[0029] Specifically, a sliding block 5 is provided at the bottom of the mounting plate 4, and the sliding block 5 is connected to a lead screw mechanism 501 that is rotatably arranged inside the sliding groove. The sliding block 5 and the sliding groove are slidably connected, and one end of the lead screw mechanism 501 is connected to the third drive motor 502.

[0030] During docking, one set of flanges is fixed above the placement groove 201, and the other set of flanges is fixed inside the rotating cylinder 402. After fixing, the screw mechanism 501 is rotated by the third drive motor 502, thereby moving the mounting plate 4 and the rotating cylinder 402 to reduce the distance between the two sets of flanges. When the two sets of flanges are close to each other, the reduction motor 406 is turned on. Under the action of the reduction motor 406, the first gear 404 rotates, thereby driving the rotating cylinder 402 and the flange fixed inside it to rotate through the ring rack 403, so that it is aligned with the bolt holes of the other set of flanges. After alignment, the distance between the two sets of flanges can be adjusted by the third drive motor 502 to connect them.

[0031] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary device for flange docking, comprising a base (1), characterized in that: The base (1) is equipped with a fixed frame (2) on the top, and a placement groove (201) is provided on the inner side of the fixed frame (2). The fixed frame (2) is equipped with a lifting clamping plate mechanism (3) that works with the placement groove (201) on the top. The base (1) is slidably equipped with an installation plate (4), and a limit block (401) is installed above the installation plate (4). A circular through groove is provided on the limit block (401), and a rotating cylinder (402) is rotatably connected to the inner side of the circular through groove. A ring rack (403) is fixedly provided on the outer side of one end of the rotating cylinder (402), and the ring rack (403) meshes with a first gear (404). The first gear (404) is installed on the outer side of the rotating rod (405), and one end of the rotating rod (405) is connected to a reduction motor (406).

2. The auxiliary device for flange docking according to claim 1, characterized in that: The lifting clamping plate mechanism (3) includes a clamping plate (301), and the clamping plate (301) is connected to the lifting plate (303) through a connecting block (302). The top of the lifting plate (303) is equipped with two sets of rack plates (304), and one end of the rack plate (304) extends through to the outside of the fixed frame (2) and meshes with the second gear (305) set on the top of the outside of the fixed frame (2). The second gear (305) is installed on the outside of the drive rod (306), and one end of the drive rod (306) is connected to the second drive motor (307).

3. The auxiliary device for flange docking according to claim 1, characterized in that: The inner side of the fixed frame (2) is symmetrically provided with limiting slide rods (308) that are slidably connected to the lifting plate (303).

4. The auxiliary device for flange docking according to claim 1, characterized in that: The mounting plate (4) is provided with a sliding block (5) at the bottom, and the sliding block (5) is connected to a screw mechanism (501) rotatably arranged inside the sliding groove. One end of the screw mechanism (501) is connected to the third drive motor (502).

5. The auxiliary device for flange docking according to claim 1, characterized in that: The rotating cylinder (402) is fixedly provided with a flange placement groove (4021), and a flange limiting plate mechanism (6) that works in conjunction with the flange placement groove (4021) is installed inside the rotating cylinder (402).

6. The auxiliary device for flange docking according to claim 5, characterized in that: The flange limiting plate mechanism (6) includes a limiting plate (601), and the limiting plate (601) is connected to the inner wall of the rotating cylinder (402) through an electric telescopic rod (602).