CN219900916U

CN219900916U - Pressure vessel welding device

Info

Publication number: CN219900916U
Application number: CN202321230176.7U
Authority: CN
Inventors: 曹生宁; 陈波; 马卓; 范玉成; 李晓晓
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-10-27
Anticipated expiration: 2033-05-22

Abstract

The utility model discloses a pressure vessel welding device, which comprises a base, wherein the top of the base is connected with a sliding seat in a sliding way, the top of the base is fixedly connected with a fixed seat, the tops of the fixed seat and the sliding seat are fixedly provided with centering clamping mechanisms, the two centering clamping mechanisms are positioned on the same straight line, and at least one centering clamping mechanism is provided with a driving mechanism for driving a pressure vessel to rotate; according to the utility model, after the pressure container is placed on the two supporting rollers, the second screw is rotated by the second hand to drive the pressing roller to press the top of the pressure container, so that the pressure container can be positioned and clamped in a three-point mode in the axial direction of the pressure container, the coaxiality of two sections to be welded is ensured, and then the speed reducing motor is started, so that the pressure container can be driven to rotate by utilizing the friction force between the pressing roller and the contact surface of the pressure container.

Description

Pressure vessel welding device

Technical Field

The utility model relates to the technical field of welding, in particular to a welding device for a pressure container.

Background

A pressure vessel is a closed vessel capable of withstanding pressure. Has important roles and roles in many departments of industry, civilian use, military industry and many fields of scientific research. The pressure vessel is in chemical and petrochemical fields, mainly used in the technological processes such as heat transfer, mass transfer, reaction, etc., and stores, transports the gas or liquefied gas with pressure; it is also widely used in other industrial and civil fields.

The pressure container is too much in shape as a cylinder, so that the distance and coaxiality between two sections of containers need to be paid attention to when girth welding is carried out, and the utility model patent with publication number of CN217193402U discloses a welding device for welding the girth of the pressure container.

However, when the scheme is used, the central shaft of the driving turntable driven by the driving motor and the central shafts of the two auxiliary rollers are relatively fixed, so that the device can only drive a pressure container with one outer diameter to perform girth welding, and the use limitation is large and needs to be improved.

Disclosure of Invention

The present utility model is directed to a welding device for a pressure vessel, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a pressure vessel welding set, includes the base, the top sliding connection of base has the slide, the top fixedly connected with fixing base of base, the equal fixed mounting in top of fixing base and slide has centering fixture, two centering fixture is located same straight line, installs on at least one centering fixture and is used for driving pressure vessel pivoted actuating mechanism.

As a further scheme of the utility model: the centering fixture comprises a frame fixed at the top of a fixed seat and a sliding seat, two supporting rollers are symmetrically and rotatably connected to the inner wall of the bottom of the frame, a second screw rod is connected to the top of the frame in a matched mode through a threaded hole, a second hand wheel is fixedly connected to the top end of the second screw rod, a U-shaped seat is rotatably connected to the bottom of the second screw rod, and a compression roller is rotatably installed in the U-shaped seat.

As a further scheme of the utility model: the top of U type seat is located the both sides of second screw rod and all fixedly connected with guide arm, the guide arm all runs through the top of frame, and guide arm and frame sliding connection.

As a further scheme of the utility model: the driving mechanism comprises a gear motor, the gear motor is fixed on the end face of the U-shaped seat, and an output shaft of the gear motor is fixedly connected with the corresponding press roller.

As still further aspects of the utility model: the top symmetry fixedly connected with two guide rails of base, two equal sliding connection has the slider on the guide rail, the slider all with the bottom fixed connection of slide, the top of base is connected with first screw rod through the bearing frame rotation, the outer wall cooperation of first screw rod has cup jointed the nut, nut and slide fixed connection, the first hand wheel of one end fixedly connected with of first screw rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, after the pressure container is placed on the two supporting rollers, the second screw is rotated by the second hand to drive the pressing roller to press the top of the pressure container, so that the pressure container can be positioned and clamped in a three-point mode in the axial direction of the pressure container, the coaxiality of two sections to be welded is ensured, and then the speed reducing motor is started, so that the pressure container can be driven to rotate by utilizing the friction force between the pressing roller and the contact surface of the pressure container.

Drawings

Fig. 1 is a schematic structural view of a welding device for a pressure vessel.

Fig. 2 is a schematic structural view of a centering and clamping mechanism in a pressure vessel welding device.

Fig. 3 is a schematic view of the structure of a guide rail in a welding device for a pressure vessel.

The device comprises a base 1, a fixed seat 2, a guide rail 3, a sliding block 4, a sliding seat 5, a nut 6, a first screw rod 7, a first hand wheel 8, a frame 9, a supporting roller 10, a U-shaped seat 11, a press roller 12, a second screw rod 13, a second hand wheel 14, a guide rod 15 and a speed reducing motor 16.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, in an embodiment of the present utility model, a pressure vessel welding device includes a welding gun and a base 1, wherein the welding gun is installed on an industrial robot or is manually operated by a welder, a slide seat 5 is slidably connected to the top of the base 1, a fixing seat 2 is fixedly connected to the top of the base 1, the top surfaces of the fixing seat 2 and the slide seat 5 are located at the same horizontal height, centering clamping mechanisms are fixedly installed on the tops of the fixing seat 2 and the slide seat 5, two centering clamping mechanisms are located on the same straight line, and a driving mechanism for driving the pressure vessel to rotate is installed on at least one centering clamping mechanism.

According to the scheme, when the welding machine is used, after the two sections of main bodies of the pressure vessel to be welded are centered and clamped by the two centering clamping mechanisms, the two sections of main bodies can be centered quickly, coaxiality of the two sections of main bodies is guaranteed, the sliding seat 5 is moved on the base 1, after the two sections of main bodies are positioned at a required distance, a plurality of spot welds are performed at welding positions through the welding gun to temporarily fix the two sections of main bodies, and then the driving mechanism is started, so that the two sections of the pressure vessel can be driven to rotate simultaneously, thereby facilitating girth welding, and being simple and convenient to operate.

With specific reference to fig. 1 and fig. 2, in one embodiment of the present utility model, the centering and clamping mechanism includes a frame 9 fixed on the top of the fixed seat 2 and the sliding seat 5, two supporting rollers 10 are symmetrically and rotatably connected to the bottom inner wall of the frame 9, a second screw 13 is cooperatively connected to the top of the frame 9 through a threaded hole, a second hand wheel 14 is fixedly connected to the top of the second screw 13, a U-shaped seat 11 is rotatably connected to the bottom of the second screw 13, and a pressing roller 12 is rotatably installed in the U-shaped seat 11.

Through adopting above-mentioned setting, place pressure vessel on two backing rolls 10, rotate second screw rod 13 through second hand wheel 14 to drive compression roller 12 compresses tightly at pressure vessel's top, can carry out three-point type location centre gripping to it in pressure vessel's axial, in order to ensure the axiality of two sections of waiting to weld.

With specific reference to fig. 1, further, on the basis of the above embodiment, the top of the U-shaped seat 11 is located at two sides of the second screw 13 and is fixedly connected with a guide rod 15, the guide rod 15 penetrates through the top of the frame 9, and the guide rod 15 is slidably connected with the frame 9.

Through the sliding fit of the two guide rods 15 and the frame 9, the frame 9 can be prevented from being driven to rotate simultaneously when the second screw 13 is rotated, so that the compression roller 12 and the two support rollers 10 are always in a parallel state.

With specific reference to fig. 1, further on the basis of the above embodiment, the driving mechanism includes a gear motor 16, where the gear motor 16 is fixed on the end surface of the U-shaped seat 11, and an output shaft of the gear motor 16 is fixedly connected with the corresponding press roller 12.

The corresponding press roller 12 can be driven to rotate by starting the gear motor 16, so that the friction force between the contact surface of the press roller 12 and the pressure container is utilized to drive the pressure container to rotate, and in order to ensure the stability of the press roller 12 for driving the pressure container to rotate, a layer of rubber sleeve can be sleeved on the peripheral wall of the press roller 12.

With specific reference to fig. 1 and fig. 3, in an embodiment of the present utility model, two guide rails 3 are symmetrically and fixedly connected to the top of the base 1, two slide blocks 4 are slidably connected to the two guide rails 3, the slide blocks 4 are fixedly connected to the bottom of the slide seat 5, a first screw rod 7 is rotatably connected to the top of the base 1 through a bearing seat, a nut 6 is sleeved on the outer wall of the first screw rod 7 in a matched manner, the nut 6 is fixedly connected to the slide seat 5, and a first hand wheel 8 is fixedly connected to one end of the first screw rod 7.

The first screw rod 7 is driven to rotate through the first hand wheel 8, the sliding seat 5 can be driven to slide along the length direction of the guide rail 3 by utilizing the cooperation of the first screw rod 7 and the nut 6, and the stability of the sliding seat 5 in movement can be ensured by utilizing the cooperation of the sliding block 4 and the guide rail 3, so that the distance between two sections of pressure containers can be controlled accurately.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A pressure vessel welding set, characterized in that: the automatic pressure vessel centering device comprises a base (1), wherein a sliding seat (5) is slidably connected to the top of the base (1), a fixing seat (2) is fixedly connected to the top of the base (1), centering clamping mechanisms are fixedly installed at the tops of the fixing seat (2) and the sliding seat (5), the two centering clamping mechanisms are located on the same straight line, and a driving mechanism for driving the pressure vessel to rotate is installed on at least one centering clamping mechanism.

2. A pressure vessel welding apparatus as defined in claim 1, wherein: the centering fixture comprises a frame (9) fixed at the top of a fixed seat (2) and a sliding seat (5), two supporting rollers (10) are symmetrically and rotationally connected to the inner wall of the bottom of the frame (9), a second screw (13) is connected to the top of the frame (9) through threaded hole matching, a second hand wheel (14) is fixedly connected to the top of the second screw (13), a U-shaped seat (11) is rotationally connected to the bottom of the second screw (13), and a compression roller (12) is rotationally installed in the U-shaped seat (11).

3. A pressure vessel welding apparatus as defined in claim 2, wherein: the top of U type seat (11) is located the both sides of second screw rod (13) and all fixedly connected with guide arm (15), guide arm (15) all run through the top of frame (9), and guide arm (15) and frame (9) sliding connection.

4. A pressure vessel welding apparatus as defined in claim 2, wherein: the driving mechanism comprises a gear motor (16), the gear motor (16) is fixed on the end face of the U-shaped seat (11), and an output shaft of the gear motor (16) is fixedly connected with the corresponding press roller (12).

5. A pressure vessel welding apparatus as defined in claim 1, wherein: the novel sliding type hydraulic lifting device is characterized in that two guide rails (3) are symmetrically and fixedly connected to the top of the base (1), two sliding connection sliding blocks (4) are respectively arranged on the guide rails (3), the sliding blocks (4) are fixedly connected with the bottom of the sliding seat (5), a first screw rod (7) is rotatably connected to the top of the base (1) through a bearing seat, a nut (6) is sleeved on the outer wall of the first screw rod (7) in a matched mode, the nut (6) is fixedly connected with the sliding seat (5), and a first hand wheel (8) is fixedly connected to one end of the first screw rod (7).