Pipe row maintaining and cutting device

Abstract

The utility model belongs to the technical field of pipe row maintenance, and particularly relates to a pipe row maintenance cutting device which comprises a cutting machine, a longitudinal linear module, a transverse linear module and fixing connecting pieces, the fixing connecting pieces are a plurality of magnetic v-shaped blocks arranged in the transverse direction, the transverse linear module is connected to the magnetic v-shaped blocks, and the longitudinal linear module and the transverse linear module are arranged on the cutting machine. According to the pipe row maintenance cutting device, a plurality of magnetic v-shaped blocks are adopted for fixing, the mass of each magnetic v-shaped block is light, the matching degree of the magnetic v-shaped block and the contact face of a row pipe is good, the surfaces of the two faces of each V-shaped block are parallel, the V-shaped blocks are not prone to falling off, and the service life of the V-shaped blocks is prolonged. The stability is high, and the installation is more convenient and flexible; in addition, the guide rail, especially the transverse guide rail with the heaviest mass, is structurally optimized, so that the structure is simpler, the weight is reduced, the mass of the guide rail is reduced, and installation and operation can be completed without carrying by two persons.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe row maintenance, and particularly relates to a pipe row maintenance cutting device. Background Art

[0002] Under the current circumstances, my country's electricity supply currently mainly relies on thermal power generation. Thermal power generation relies on coal, biomass straw, garbage, gas, heavy oil and other raw materials. After combustion, the water-cooled wall pipe row pipes in the boiler are heated to produce steam. The pipe diameter in the row pipe is generally between 32-76 mm, the pipe thickness is between 4.5-13 mm, and the pipe material is generally 20G carbon steel and high alloy steel (because the temperature and pressure in the pipe are relatively high, alloy materials are used). There is a sealing steel plate in the center between the pipes, which are connected together and accumulated to form a pipe row wall. The four pipe row walls are combined into a cube to form a boiler combustion chamber.

[0003] The flame in the combustion chamber directly heats the tube wall to generate steam, which flows upward and converges. Due to factors such as flow rate, high temperature, corrosion, and friction, the thickness of the inside and outside of the local tube row becomes thinner, which may burst under high temperature and high pressure, causing shutdown and requiring emergency repair and replacement of the locally thinned tube row.

[0004] The most common replacement methods are flame and plasma cutting, which are thermal cutting. The metal slag produced during cutting will flow into the pipe, causing the pipe to be blocked later, and the intact pipe will be cut due to improper operation. Because flame cutting can cut iron like mud, and after flame cutting, the end face of the thermally cut pipe is overheated, and it will no longer meet the weld structure requirements when it is welded again;

[0005] Another way is that the cutting machine drives the grinding wheel cutting disc for cutting. The grinding wheel disc is a circular disc with a diameter of less than 230 mm and a thickness of less than 3 mm. The cutting machine speed is 2000 revolutions per minute. It needs to be manually controlled and strive to make straight line cutting. Safety accidents often occur in cutting. The reason for the accident is that the manual control is not as stable as the machine control. It will bend if it is not properly controlled, causing the ultra-thin grinding wheel disc to break and fly far away, causing immeasurable harm to other personnel on site. The uneven cutting of the pipe end will affect the installation size of the new pipe to be replaced, and the size mismatch will lead to the inability to weld.

[0006] At present, there is also a type of cutting machine that cuts back and forth. For example, patent CN2501619Y discloses an electromagnetic pipe cutting machine, in which the motor is connected to the cutting blade and the longitudinal slide respectively, the longitudinal slide and the longitudinal guide rail and the transverse slide and the transverse guide rail are all slidably connected, the clamping body is connected to the longitudinal guide rail and the transverse slide respectively, and the permanent magnetic platform is connected to the transverse guide rail, the permanent magnet, and the electromagnet respectively. The permanent magnet and the electromagnet can be fixed on the workpiece. Because the device uses an electromagnet to fix the guide rail on the cut pipe, the position of the guide rail can be easily adjusted, and it is quick to use.

[0007] It is fixed on the cutting pipe by means of an electromagnet and a permanent magnet. In order to ensure a sufficiently large adsorption force, the electromagnet and permanent magnet of this type are often very large and heavy. In addition, the mass of the guide rail structure is also very large, so it usually requires two people to lift and operate it, which is a waste of labor. The electromagnet has a certain failure rate. If a power outage occurs, it will suddenly cause a safety accident of falling off. Therefore, the use of electromagnets should be avoided. Moreover, the current electromagnets and permanent magnets are not suitable for inclined pipe rows. Utility Model Content

[0008] The utility model provides a pipe row maintenance cutting device, which can solve the problems pointed out in the background technology.

[0009] A pipe row maintenance cutting device includes a cutting machine, a longitudinal linear module, a transverse linear module and a fixed connecting piece, wherein the fixed connecting piece is a plurality of magnetic V-shaped blocks arranged in the transverse direction, the transverse linear module is connected to the magnetic V-shaped block, the longitudinal linear module is connected to the transverse linear module, and the cutting machine is slidably connected to the longitudinal linear module.

[0010] Preferably, the longitudinal linear module includes a longitudinal guide rail and a plurality of longitudinal guide wheels, and the plurality of longitudinal guide wheels are distributed on both sides of the bottom of the cutting machine.

[0011] Preferably, the transverse linear module includes a transverse guide rail and a plurality of transverse guide wheels, and the plurality of transverse guide wheels are distributed on the upper and lower sides of the inner end of the longitudinal guide rail.

[0012] Preferably, the transverse guide rail is a high-strength aluminum alloy guide rail.

[0013] Preferably, a plurality of weight-reducing holes are provided on the transverse guide rail.

[0014] Preferably, the transverse guide rail is provided with a plurality of fixing holes, and the transverse guide rail is fixed to the magnetic V-shaped block by fixing screws matching therewith.

[0015] Preferably, the fixing hole is an elongated hole arranged along the length direction of the transverse guide rail.

[0016] Preferably, the contact surface of the magnetic V-shaped block is an arc-shaped contact surface.

[0017] Beneficial effects: The utility model provides a pipe row maintenance and cutting device, which is fixed with a plurality of magnetic V-blocks. A single magnetic V-block is light in weight and has a good fit with the contact surface of the row pipe. The double-sided surfaces of the V-block are parallel, with high stability, and the installation is more convenient and flexible. In addition, the guide rails, especially the heaviest transverse guide rails, are structurally optimized to make their structure simpler, and are lightened to reduce their weight, so that installation and operation can be completed without the need for two people to lift them. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model.

[0019] Figure 2 It is a side schematic diagram of the utility model.

[0020] Figure 3 It is a main schematic diagram of the utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the magnetic V-shaped block of the utility model.

[0022] Description of reference numerals:

[0023] Reference numerals in the figure: cutting machine 1; longitudinal linear module 2; longitudinal guide rail 21; longitudinal guide wheel 22; transverse linear module 3; transverse guide rail 31; weight-reducing hole 311; fixing hole 312; fixing screw 313; transverse guide wheel 32; vertical plate 33; fixed connector 4. DETAILED DESCRIPTION

[0024] A specific implementation of the present utility model is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific implementation mode.

[0025] Embodiment 1:

[0026] like Figure 1-4 As shown, a pipe row maintenance cutting device includes a cutting machine 1, a longitudinal linear module 2, a transverse linear module 3 and a fixed connecting member 4. The fixed connecting member 4 is a plurality of magnetic V-shaped blocks arranged along the transverse direction. The transverse linear module 3 is connected to the magnetic V-shaped block, the longitudinal linear module 2 is connected to the transverse linear module 3, and the cutting machine 1 is slidably connected to the longitudinal linear module 2.

[0027] Specific, especially combined Figure 2-3As shown, the longitudinal linear module 2 includes a longitudinal guide rail 21 and a plurality of longitudinal guide wheels 22, and the plurality of longitudinal guide wheels 22 are distributed on both sides of the bottom of the cutting machine 1. The transverse linear module 3 includes a transverse guide rail 31 and a plurality of transverse guide wheels 32, and the plurality of transverse guide wheels 32 are distributed on the upper and lower sides of the inner end of the longitudinal guide rail 21. A vertical plate 33 is provided at the inner end of the longitudinal guide rail 21, and the transverse guide wheel 32 is arranged on the vertical plate 33. The guide rail structure of this structure is simpler and relatively light.

[0028] In some embodiments, the transverse guide rail 31 is a high-strength aluminum alloy guide rail, which is lighter in weight and more convenient for single-person operation than guide rails made of traditional materials.

[0029] In some embodiments, a plurality of weight-reducing holes 311 are provided on the transverse guide rail 31 to further reduce weight.

[0030] In some embodiments, in particular Figure 2-3 As shown, the transverse guide rail 31 is provided with a plurality of fixing holes 312, and the transverse guide rail 31 is fixed to the magnetic V-shaped block by means of the fixing screws 313 matched therewith. The magnetic V-shaped block is provided with corresponding threaded holes, and the fixing holes 312 are elongated holes arranged along the length direction of the transverse guide rail; the screw fixing is combined with the elongated holes so that it can adapt to the inclined pipe rows, and the pipe rows generally include vertical pipe rows and 45-degree inclined pipe rows. Since horizontal cutting is required during cutting, that is, the transverse guide rail 31 is to be in a horizontal state, the connection angle between the transverse guide rail 31 and the magnetic V-shaped block needs to be tilted and adjusted, and the screw fixing is combined with the elongated holes to adapt to this tilted connection; in addition, the elongated holes can also be provided to fine-tune the tilted position, making it easier to connect and fix.

[0031] The contact surface of the magnetic V-block is an arc-shaped contact surface, which can expand the contact area, increase the adsorption force, and make the connection more stable.

[0032] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A pipe row maintenance cutting device, comprising a cutting machine (1), a longitudinal linear module (2), a transverse linear module (3), and a fixed connection member (4), characterized in that: The fixed connection member (4) is a plurality of magnetic V-shaped blocks arranged in a transverse direction, the transverse linear module (3) is connected to the magnetic V-shaped block, the longitudinal linear module (2) is connected to the transverse linear module (3), and the cutting machine (1) is slidably connected to the longitudinal linear module (2).

2. A pipe row maintenance cutting device according to claim 1, characterized in that: The longitudinal linear module (2) comprises a longitudinal guide rail (21) and a plurality of longitudinal guide wheels (22), wherein the plurality of longitudinal guide wheels (22) are distributed on both sides of the bottom of the cutting machine (1).

3. A pipe row maintenance cutting device according to claim 2, characterized in that: The transverse linear module (3) comprises a transverse guide rail (31) and a plurality of transverse guide wheels (32), wherein the plurality of transverse guide wheels (32) are distributed on the upper and lower sides of the inner end of the longitudinal guide rail (21).

4. A pipe row maintenance cutting device according to claim 3, characterized in that: The transverse guide rail (31) is a high-strength aluminum alloy guide rail.

5. The pipe row maintenance cutting device according to claim 3, characterized in that: The transverse guide rail (31) is provided with a plurality of weight-reducing holes (311).

6. A pipe row maintenance cutting device according to claim 5, characterized in that: The transverse guide rail (31) is provided with a plurality of fixing holes (312), and the transverse guide rail (31) is fixed to the magnetic V-shaped block by fixing screws (313) matching the fixing holes.

7. A pipe row maintenance cutting device according to claim 6, characterized in that: The fixing hole (312) is an elongated hole arranged along the length direction of the transverse guide rail.

8. The pipe row maintenance cutting device according to claim 1, characterized in that: The contact surface of the magnetic V-shaped block is an arc-shaped contact surface.

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