Conveying device of saddle welding machine for welding interior of boiler shell connecting pipe

Abstract

The utility model belongs to the technical field of boiler shell connecting pipe welding, and particularly relates to a conveying device of a saddle welding machine for internal welding of a boiler shell connecting pipe, which comprises an equipment body, a rigid beam is fixed in the equipment body, a hand-pulled trolley is mounted at the bottom of the inner side of the rigid beam, and the bottom of the hand-pulled trolley is connected with a hand-pulled block through a connecting rope. The chain block is connected with the saddle welding machine through a connecting rope, a positioning pin is fixed to one end of the rigid beam, the positioning pin is inserted into the side wall of the equipment body and extends to the outer side of the equipment body, a pin shaft is inserted into the positioning pin and located on the outer side of the equipment body, and a cantilever is fixed to the position, away from the equipment body, of the top of the rigid beam. And the cantilever is erected at the top of the equipment body. Welding equipment can be conveniently fed into a barrel, automatic welding of an internal connecting pipe is achieved, then the clamping efficiency of the welding device and a workpiece can be greatly improved, the influence of human factors is reduced, and therefore the welding quality and efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler shell pipe welding, and in particular relates to a conveying device of a saddle welding machine used for internal welding of a boiler shell pipe. Background Art

[0002] In the manufacturing process of heavy machinery and equipment such as boilers and pressure vessels, the welding of fillet welds between the boiler shell and the cylinder is a key process. With the continuous development of welding technology, traditional manual welding has gradually been replaced by automated and efficient welding methods. Among them, saddle-shaped submerged arc automatic welding machines have been widely used in the welding of large equipment such as boilers due to their stable welding quality, high efficiency, and good working environment.

[0003] However, when welding inside the boiler shell pipe, especially when dealing with embedded pipes, the traditional saddle-shaped welding device faces a series of challenges. Due to the large diameter of the boiler shell and the complex internal structure of the embedded pipe, the existing saddle-shaped welding device is difficult to clamp inside the cylinder due to its large size and weight, which greatly limits the welding efficiency and welding quality. In addition, although manual arc welding of the inner wall can solve some problems, the process and strength of manual welding are greatly affected by human factors, and it is difficult to meet the needs of high-precision and high-quality welding.

[0004] In order to overcome the above problems, the development of a saddle welding machine conveying device suitable for internal welding of boiler shell pipes has important practical significance and application value. Utility Model Content

[0005] The purpose of the utility model is to provide a conveying device for a saddle welding machine used for internal welding of a boiler shell pipe, which can conveniently convey the welding equipment into the interior of the cylinder to realize automatic welding of the internal pipe, thereby greatly improving the clamping efficiency of the welding device and the workpiece, reducing the influence of human factors, and thus improving the welding quality and efficiency.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A conveying device for a saddle welding machine used for internal welding of a boiler shell pipe comprises an equipment body, a rigid beam is fixed inside the equipment body, a hand-pulled sports car is installed at the bottom of the inner side of the rigid beam, the bottom of the hand-pulled sports car is connected to a hand-pulled winch via a connecting rope, and the hand-pulled winch is connected to the saddle welding machine via the connecting rope.

[0008] A positioning pin is fixed to one end of the rigid beam, and the positioning pin is inserted into the side wall of the equipment body and extends to the outside of the equipment body.

[0009] A pin shaft is inserted in the positioning pin and located on the outside of the equipment body.

[0010] A cantilever is fixed on the top of the rigid beam and at a position far away from the equipment body, and the cantilever is mounted on the top of the equipment body.

[0011] A clamping bolt is threadedly connected inside the cantilever and located on the top of the equipment body.

[0012] A limit block is arranged at the end of the rigid beam away from the positioning pin.

[0013] The technical effects achieved by the utility model are:

[0014] The utility model can conveniently send the welding equipment into the cylinder body to realize the automatic welding of the internal pipe, which can greatly improve the clamping efficiency of the welding device and the workpiece, reduce the influence of human factors, and thus improve the welding quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 This utility model Figure 1 The enlarged view of point A in the middle;

[0017] Figure 3 This utility model Figure 1 Enlarged view of point B in the middle.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Rigid beam; 2. Locating pin; 3. Pin shaft; 4. Limit block; 5. Cantilever; 6. Clamping bolt; 7. Hand-pulled sports car; 8. Hand-pulled hoist; 9. Saddle welding machine; 10. Equipment body. DETAILED DESCRIPTION

[0020] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0021] like Figure 1-3As shown, a conveying device of a saddle welding machine for internal welding of a boiler shell pipe comprises an equipment body 10, a rigid beam 1 is fixed inside the equipment body 10, a positioning pin 2 is fixed at one end of the rigid beam 1, and the positioning pin 2 is inserted into the side wall of the equipment body 10 and extends to the outside of the equipment body 10. Through the setting of the positioning pin 2, the positioning pin 2 can limit the rigid beam 1, so that the rigid beam 1 can be stable in the equipment body 10, and a pin shaft 3 is inserted in the positioning pin 2 and located on the outside of the equipment body 10. Through the setting of the pin shaft 3, the pin shaft 3 can fix the positioning pin 2, thereby preventing the rigid beam 1 from loosening due to vibration and other reasons;

[0022] A cantilever 5 is fixed at the top of the rigid beam 1 and at a position away from the equipment body 10, and the cantilever 5 is erected on the top of the equipment body 10. The cantilever 5 can also play a role in stabilizing the rigid beam 1, and the cantilever 5 can adjust the position of the rigid beam 1 in the equipment body 10 according to the length of the welding equipment body 10. A clamping bolt 6 is also threadedly connected inside the cantilever 5 and located at the top of the equipment body 10. Through the setting of the clamping bolt 6, the clamping bolt 6 can be screwed, and then the clamping bolt 6 contacts and squeezes the equipment body 10 after being screwed, thereby stabilizing the position of the cantilever 5;

[0023] A hand-pulled sports car 7 is installed at the bottom of the inner side of the rigid beam 1. The hand-pulled sports car 7 can slide on the rigid beam 1 at the lower part of the rigid beam 1 by means of balls, rollers or other sliding methods, so as to transport the saddle welding machine 9 below in and out of the equipment. A limit block 4 is provided at the end of the rigid beam 1 away from the positioning pin 2. Through the setting of the limit block 4, the limit block 4 can block the hand-pulled sports car 7 to prevent the hand-pulled sports car 7 from falling off the rigid beam 1.

[0024] The bottom of the hand-pulled sports car 7 is connected to a hand-pulled hoist 8 through a connecting rope, and the hand-pulled hoist 8 can adjust the total length of the connecting rope up and down, and the hand-pulled hoist 8 is connected to the saddle welding machine 9 through the connecting rope, and the connecting rope can be a rope body such as a steel wire rope with a strong pulling force and not easy to break;

[0025] When in use, the user can drive the saddle welder 9 to slide on the rigid beam 1 by pulling the sports car 7 by hand, so that the saddle welder 9 can move inside the equipment body 10 to perform welding inside the equipment body 10 .

[0026] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A conveying device for a saddle welding machine for internal welding of a boiler shell pipe, comprising a device body (10), characterized in that: A rigid beam (1) is fixed inside the equipment body (10), a hand-pulled sports car (7) is installed at the bottom of the inner side of the rigid beam (1), the bottom of the hand-pulled sports car (7) is connected to a hand-pulled winch (8) via a connecting rope, and the hand-pulled winch (8) is connected to the saddle welding machine (9) via the connecting rope.

2. The conveying device according to claim 1, characterized in that: A positioning pin (2) is fixed to one end of the rigid beam (1), and the positioning pin (2) is inserted into the side wall of the device body (10) and extends to the outside of the device body (10).

3. The conveying device according to claim 2, characterized in that: A pin shaft (3) is inserted inside the positioning pin (2) and located outside the device body (10).

4. The conveying device according to claim 1, characterized in that: A cantilever (5) is fixed on the top of the rigid beam (1) and at a position away from the equipment body (10), and the cantilever (5) is mounted on the top of the equipment body (10).

5. The conveying device according to claim 4, characterized in that: A clamping bolt (6) is threadedly connected inside the cantilever (5) and located at the top of the equipment body (10).

6. The conveying device according to claim 2, characterized in that: A limiting block (4) is provided at the end of the rigid beam (1) away from the positioning pin (2).

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