Assembling and welding device for oil suction pipe of heading machine

Abstract

The utility model belongs to the technical field of oil suction pipe machining, solves the problems that oil suction pipes are not uniform and cannot be universally used in the same heading machine in the existing heading machine oil suction pipe assembling and welding process, and provides an oil suction pipe assembling and welding device of a heading machine. Comprising a front pump oil suction pipe positioning assembly for positioning a front pump oil suction pipe assembly; the rear pump oil suction pipe positioning assembly is used for positioning the rear pump oil suction pipe assembly; the oil suction filter positioning assembly is used for positioning the first oil suction pipe mounting flange; a plurality of positioning holes are formed in the bottom plate; the front pump oil suction pipe positioning assembly, the rear pump oil suction pipe positioning assembly and the oil suction filter positioning assembly are all arranged on the bottom plate and fixed to positioning holes in the bottom plate, and position positioning is achieved. According to the utility model, the oil suction pipe of the heading machine can be assembled and welded in an area outside a unit, the oil suction pipe can be directly assembled and replaced on the unit through batch production, and the oil suction pipe of the same heading machine can be stored and replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil suction pipe processing, in particular to an assembly welding device for the oil suction pipe of a tunnel boring machine. Background Art

[0002] The oil suction pipe on a roadheader connects the pump station to the oil tank. It's welded together using multiple elbows, joints, and rubber hoses. Currently, the industry generally welds the pipe onto the roadheader and then assembles it. This method requires the pipe to be welded onto the machine itself.

[0003] Because the oil tank and pump station are already assembled, machining errors during the welding of the oil suction pipe, as well as subsequent assembly errors, prevent the oil suction pipe welded using this method from being compatible with the same type of roadheader. This severely limits the cost and efficiency of replacing oil suction pipes for roadheaders, hindering the mass production of these pipes. Furthermore, the welding slag and fumes generated by the welding affect the assembly quality and the workshop environment, making this method of welding oil suction pipes impractical for rapid replacement.

[0004] Therefore, it is necessary to provide a universal oil suction pipe welding device that can be used on the same roadheader. Utility Model Content

[0005] The utility model provides a tunneling machine oil suction pipe welding device to solve the problem that the existing tunneling machine oil suction pipes are not uniform and cannot be used in the same tunneling machine.

[0006] The utility model adopts the following technical solution: a device for welding an oil suction pipe of a roadheader, comprising:

[0007] A front pump oil suction pipe positioning assembly, which is connected to the front pump oil suction pipe assembly of the roadheader to position the front pump oil suction pipe assembly;

[0008] A rear pump oil suction pipe positioning assembly, which is connected to the rear pump oil suction pipe assembly of the roadheader to position the rear pump oil suction pipe assembly;

[0009] An oil suction filter positioning assembly, the oil suction filter positioning assembly being connected to a first oil suction pipe mounting flange of the roadheader oil suction pipe to position the first oil suction pipe mounting flange;

[0010] A base plate is provided with a plurality of positioning holes; the front pump oil suction pipe positioning assembly, the rear pump oil suction pipe positioning assembly and the oil suction filter positioning assembly are all arranged on the base plate and fixed with the positioning holes on the base plate to achieve position positioning.

[0011] Furthermore, the front pump oil suction pipe positioning assembly includes a front pump oil suction pipe flange bracket, a front pump guide pipe positioning bracket, a 102 pipe positioning bracket and a front pump guide pipe; the front pump oil suction pipe flange bracket, the front pump guide pipe positioning bracket and the 102 pipe positioning bracket are respectively fixedly connected to the base plate, and the front pump guide pipe is fixedly connected to the front pump guide pipe positioning bracket.

[0012] Furthermore, the rear pump oil suction pipe positioning assembly includes a rear pump oil suction pipe flange bracket, a rear pump guide pipe positioning bracket and a rear pump guide pipe; the rear pump oil suction pipe flange bracket and the rear pump guide pipe positioning bracket are respectively fixedly connected to the base plate, and the rear pump guide pipe is fixedly connected to the rear pump guide pipe positioning bracket.

[0013] Furthermore, the oil suction filter positioning assembly includes a front pump suction pipe oil suction filter flange bracket and a rear pump suction pipe oil suction filter flange bracket; the front pump suction pipe oil suction filter flange bracket is positioned with the first suction pipe mounting flange of the front pump; the rear pump suction pipe oil suction filter flange bracket is positioned with the first suction pipe mounting flange of the rear pump.

[0014] Furthermore, the front pump oil suction pipe flange bracket and the rear pump oil suction pipe flange bracket each include a first base and a first bracket, the first base and the first bracket are vertically arranged, and the first base is fixed to the bottom plate positioning hole.

[0015] Furthermore, the front pump suction pipe oil suction filter flange bracket and the rear pump suction pipe oil suction filter flange bracket both include a second base and a second bracket; the second base and the second bracket are vertically arranged, the second base is fixed to the bottom plate positioning hole, and the other end of the second bracket is provided with a flange platform, and the flange platform is connected to the first suction pipe mounting flange of the tunnel boring machine suction pipe.

[0016] Furthermore, the first bracket and the flange platform are both provided with a first positioning pin and a first screw, wherein the first positioning pin and the first screw are fixedly connected to the oil suction pipe mounting flange of the oil suction pipe of the tunnel boring machine.

[0017] Furthermore, the front pump guide tube positioning bracket, the 102 tube positioning bracket and the rear pump guide tube positioning bracket are all "I"-shaped brackets, including a third base, a third bracket and a fourth bracket; the third base is fixed to the positioning holes corresponding to the bottom plate, the third bracket is vertically arranged with the third base, and the fourth bracket is parallel to the third base and vertically arranged at the other end of the third bracket; a groove is arranged on the top of the fourth bracket to form a "V"-shaped positioning block.

[0018] Furthermore, the first base, the second base and the third base are each provided with a second positioning pin and a second screw, and the second positioning pin and the second screw are fixedly connected to the positioning hole of the bottom plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The utility model of the tunnel boring machine oil suction pipe welding device can realize the tunnel boring machine oil suction pipe welding in the area outside the unit, and realize the mass production of the oil suction pipe directly on the unit for assembly and replacement, so that the oil suction pipe of the same tunnel boring machine can be stored and replaced.

[0021] 2. The utility model uses the device to weld the oil suction pipe, which can save the process waste caused by the original welding of the oil suction pipe and the environmental pollution caused by welding in the assembly workshop. At the same time, it can realize the preparation of oil suction pipes of the same type of tunnel boring machine, which is convenient for the later replacement of accessories and reduces the maintenance cost of the tunnel boring machine oil suction pipe.

[0022] 3. This device is designed by simulating the actual assembly position of the front pump and rear pump oil suction pipes with the tunnel boring machine pump station and oil tank through a three-dimensional model, and the installation position of the oil suction pipe is fixed by fixing the oil suction pipe mounting flange. The oil suction pipe is welded with this device, and the installation position of the oil suction pipe after welding can be unified to achieve standardization and interchangeability of the oil suction pipe accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of the oil suction pipe welding device for a tunnel boring machine according to the utility model;

[0024] Figure 2 This is a schematic diagram of the oil suction pipe structure of the tunnel boring machine;

[0025] Figure 3 This is a schematic diagram of the oil suction pipe welding device for a tunnel boring machine and the oil suction pipe after positioning;

[0026] Figure 4 This is the coordinate diagram of the locating pins used in the NC programming of the bottom plate locating holes of the utility model;

[0027] Figure 5 This is a schematic diagram of the front pump oil suction pipe flange bracket structure;

[0028] Figure 6 This is a schematic diagram of the flange bracket structure of the front pump suction pipe and oil filter;

[0029] Figure 7 This is a schematic diagram of the front pump guide tube positioning bracket structure;

[0030] Figure 8 This is the coordinate diagram of the bolts for CNC programming of the bottom plate positioning holes of the utility model;

[0031] In the figure: 1. Base plate; 2. Flange bracket for front pump oil suction pipe; 3. Flange bracket for rear pump oil suction pipe; 4. Positioning bracket for rear pump guide pipe; 5. Flange platform; 5.1. Flange bracket for oil suction filter of front pump oil suction pipe; 5.2. Flange bracket for oil suction filter of rear pump oil suction pipe; 6. Positioning bracket for 102 pipe; 7. Positioning bracket for front pump guide pipe; 8. Front pump guide pipe; 9. Rear pump guide pipe; 10. First locating pin; 11. First screw; 12. Second locating pin; 13. Second screw; 14. First base; 15. First bracket; 16. Second base; 17. Second bracket; 18. Third base; 19. Third bracket; 20. Fourth bracket; 01. Mounting flange for oil suction pipe; 02. Steel pipe; 03. Joint; 04. Steel wire hose; 05. Mounting flange for first oil suction pipe; 06. Mounting flange for second oil suction pipe. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to further clearly and completely describe the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Utilizing the technical solutions described in the present invention, or those skilled in the art who are inspired by the technical solutions of the present invention and design similar technical solutions to achieve the above-mentioned technical effects, all fall within the scope of protection of the present invention.

[0033] like Figure 2 As shown, the oil suction pipes of the roadheader are divided into a front pump suction pipe assembly and a rear pump suction pipe assembly. Each assembly includes a suction pipe mounting flange 01, a steel pipe 02, a steel hose 04, and a connector 03. Steel hose 04 is connected to steel pipe 02 at both ends via connectors 03. The end of steel pipe 02 away from steel hose 04 is welded to suction pipe mounting flange 01. Elbows are provided at both ends of steel pipe 02 to facilitate connection to the suction pipe mounting flange and the steel hose. Suction pipe mounting flange 01 includes a first suction pipe mounting flange 05 and a second suction pipe mounting flange 06, with the second suction pipe mounting flange 06 located away from the oil suction filter.

[0034] This embodiment provides a device for welding the oil suction pipe of a roadheader. Figure 1 As shown, including:

[0035] The front pump oil suction pipe positioning assembly is connected to the front pump oil suction pipe assembly of the roadheader to position the front pump oil suction pipe assembly;

[0036] The rear pump oil suction pipe positioning assembly is connected to the rear pump oil suction pipe assembly of the roadheader to position the rear pump oil suction pipe assembly;

[0037] The oil suction filter positioning assembly is connected to the first oil suction pipe mounting flange of the oil suction pipe to position the first oil suction pipe mounting flange 05;

[0038] The base plate 1 is provided with a plurality of positioning holes; the front pump oil suction pipe positioning assembly, the rear pump oil suction pipe positioning assembly and the oil suction filter positioning assembly are all arranged on the base plate 1 and fixed with the corresponding positioning holes on the base plate 1 to achieve position positioning.

[0039] This device simulates the actual assembly position of the front pump and rear pump oil suction pipe components and the tunnel boring machine pump station and oil tank through a three-dimensional model, uses three-dimensional design software to design a three-dimensional model of the oil suction pipe assembly welding device, and then converts it into a two-dimensional design drawing. The bottom plate 1 uses a CNC machining center to perform CNC programming on the positioning holes of the bottom plate 1, thereby ensuring the accuracy of the positioning holes of the bottom plate 1; Figure 4 The coordinates of the positioning holes of the front pump suction pipe positioning assembly, the rear pump suction pipe positioning assembly, and the oil suction filter positioning assembly on base plate 1 are shown. B11-B20 are the coordinates of the front pump suction pipe positioning assembly; B5-B10 are the coordinates of the rear pump suction pipe positioning assembly; and B1-B4 are the coordinates of the oil suction filter positioning assembly.

[0040] In some embodiments, the front pump suction pipe positioning assembly includes a front pump suction pipe flange bracket 2, a front pump guide pipe positioning bracket 7, a 102 pipe positioning bracket 6, and a front pump guide pipe 8. The front pump suction pipe flange bracket 2, the front pump guide pipe positioning bracket 7, and the 102 pipe positioning bracket 6 are each fixedly connected to corresponding positioning holes on the base plate 1. The front pump guide pipe 8 is fixedly connected to the front pump guide pipe positioning bracket 7. The front pump guide pipe 8 positions the steel hose 04 in the front pump suction pipe assembly of the tunnel boring machine's suction pipe, ensuring that the connectors 03 connected to both ends of the steel hose 04 are aligned on the same axis, thereby aligning the two connectors 03. The front pump suction pipe flange bracket 2 is fixed to the front pump's second suction pipe mounting flange 06, positioning the second suction pipe mounting flange 06; the 102 pipe positioning bracket 6 positions the suction pipe steel pipe 02.

[0041] In some embodiments, the rear pump suction pipe positioning assembly includes a rear pump suction pipe flange bracket 3, a rear pump guide pipe positioning bracket 4, and a rear pump guide pipe 9. The rear pump suction pipe flange bracket 3 and the rear pump guide pipe positioning bracket 4 are respectively fixedly connected to corresponding positioning holes on the base plate 1. The rear pump guide pipe 9 is fixedly connected to the rear pump guide pipe positioning bracket 4. The rear pump guide pipe 9 positions the steel hose 04 in the rear pump suction pipe assembly of the tunnel boring machine suction pipe, aligning the connectors 03 connected to both ends of the steel hose 04 on the same axis, thereby aligning the two connectors 03. The rear pump suction pipe flange bracket 3 is fixed to the rear pump's second suction pipe mounting flange 06 to position the rear pump's second suction pipe mounting flange 06.

[0042] In some embodiments, as Figure 1 As shown, the oil suction filter positioning assembly includes a front pump suction pipe suction filter flange bracket 5.1 and a rear pump suction pipe suction filter flange bracket 5.2. The front pump suction pipe suction filter flange bracket 5.1 is positioned with the front pump's first suction pipe mounting flange 05. Together, the front pump suction pipe positioning assembly and the front pump suction pipe suction filter flange bracket 5.1 position the front pump suction pipe assembly of the roadheader's oil suction pipe. The rear pump suction pipe suction filter flange bracket 5.2 positions the rear pump's first suction pipe mounting flange 05. Together, the rear pump suction pipe positioning assembly and the rear pump suction pipe suction filter flange bracket 5.2 position the rear pump suction pipe assembly of the roadheader's oil suction pipe.

[0043] By using the three-dimensional model design in advance, the positioning holes of the bottom plate 1 are processed by CNC programming, thereby ensuring the position accuracy of the positioning holes of the bottom plate 1. Figure 3 As shown, the front pump suction pipe positioning assembly, rear pump suction pipe positioning assembly, front pump suction pipe oil suction filter flange bracket 5.1, and rear pump suction pipe oil suction filter flange bracket 5.2 are respectively fixed to the corresponding positioning holes of the base plate 1. The suction pipe components are respectively connected to the front pump suction pipe positioning assembly, rear pump suction pipe positioning assembly, and suction filter positioning assembly for positioning. After positioning, the suction pipe components are welded together to finalize the shape of the roadheader suction pipe. The specifications of the suction pipes welded together according to the present roadheader suction pipe welding device are unified, so that they can be used on the same roadheader. This allows for mass production of roadheader suction pipes, saving the cost of replacing roadheader suction pipes and improving replacement efficiency.

[0044] In some embodiments, as Figure 5 As shown, the front pump oil suction pipe flange bracket 2 and the rear pump oil suction pipe flange bracket 3 both include a first base 14 and a first bracket 15. The first base 14 and the first bracket 15 are vertically arranged, and the first base 14 is fixed to the positioning hole of the base plate 1, thereby realizing the positioning setting of the front pump oil suction pipe flange bracket 2 and the rear pump oil suction pipe flange bracket 3 and the base plate 1.

[0045] In some embodiments, as Figure 6 As shown, the flange bracket 5.1 for the front pump suction pipe and the flange bracket 5.2 for the rear pump suction pipe both include a second base 16 and a second bracket 17. The second base 16 and the second bracket 17 are arranged vertically, fixed to the positioning hole of the base plate 1. The other end of the second bracket 17 is provided with a flange platform 5, which is connected to the first suction pipe mounting flange 05 of the roadheader suction pipe, thereby fixing the suction pipe in place.

[0046] In some embodiments, the front pump guide tube positioning bracket 7, the 102 tube positioning bracket 6 and the rear pump guide tube positioning bracket 4 are all "I" shaped brackets, such as Figure 7 As shown, it includes a third base 18, a third bracket 19, and a fourth bracket 20. The third base 18 is fixed to the corresponding positioning holes in the bottom plate 1, and the third bracket 19 is arranged perpendicular to the third base 18. The fourth bracket 20 is parallel to the third base 18 and is arranged perpendicularly at the other end of the third bracket 19. A groove is provided on the top of the fourth bracket 20 to form a "V"-shaped positioning block, which can quickly position the steel pipe 02, the front pump guide tube 8, and the rear pump guide tube 9 in the circumferential direction.

[0047] In some embodiments, a first positioning pin 10 and a first screw 11 are provided on the first bracket 15 and the flange platform 5. The first positioning pin 10 is used for positioning, and the first screw 11 is used to fix the first bracket 15 to the second oil suction pipe mounting flange 06, and the flange platform 5 to the first oil suction pipe mounting flange 05.

[0048] In some embodiments, the pin hole of the first positioning pin 10 is φ18, and the first screw 11 is a hexagon socket head screw M16×35.

[0049] In some embodiments, the first base 14, the second base 16 and the third base 18 are each provided with a second positioning pin 12 and a second screw 13. The second positioning pin 12 is used to position the first base 14, the second base 16 and the third base 18 with the positioning holes corresponding to the base plate 1, and then the second screw 13 is used to fix them.

[0050] In some embodiments, the pin hole of the second positioning pin 12 is φ12, and the second screw 13 is a hexagon socket head screw M10×30.

[0051] The first and second locating pins 10 and 12 secure the various components of the fixture, preventing the components from shifting due to loose bolts during use, which could lead to discrepancies in the welded oil suction pipe. This roadheader oil suction pipe assembly is secured using a pin-and-bolt method for first positioning and then clamping, ensuring that the assembly does not deform or shift during use.

[0052] The front pump oil suction pipe flange bracket 2, front pump guide pipe positioning bracket 7, 102 pipe positioning bracket 6, rear pump oil suction pipe flange bracket 3, rear pump guide pipe positioning bracket 4, front pump oil suction pipe oil suction filter flange bracket 5.1 and rear pump oil suction pipe oil suction filter flange bracket 5.2 are all made by wire cutting to ensure that the accuracy of the shape after processing is consistent with the three-dimensional design.

[0053] In some embodiments, there are two front pump guide tube positioning brackets 7 .

[0054] In some embodiments, there are two tube positioning brackets 102 .

[0055] In some embodiments, there are two rear pump guide tube positioning brackets 4 .

[0056] In some embodiments, as Figure 4 As shown in the figure, the position of the positioning hole corresponding to the front pump oil suction pipe flange bracket 2 on the bottom plate 1 is determined by B11 (1295.90, 266.50) and B12 (1415.90, 336.50); there are two front pump guide pipe positioning brackets 7, and the positions of the corresponding positioning holes on the bottom plate 1 are determined by B13 (863.29, 515.96), B14 (833.29, 407.96) and B15 (5 97.05,515.96), B16 (567.05,407.96); there are also two 102 tube positioning brackets 6, and the positions of the corresponding positioning holes on the bottom plate 1 are determined by B17 (372.91,356.54), B18 (317.75,454.12) and B19 (144.15,280.51), B20 (199.30,182.93) respectively.

[0057] The positions of the corresponding positioning holes of the rear pump oil suction pipe flange bracket 3 on the base plate 1 are determined by B9 (1153.80, 21.50) and B10 (1273.80, 91.50); there are two rear pump guide pipe positioning brackets 4, and the positions of the corresponding positioning holes on the base plate 1 are determined by B5 (562.28, 80.01), B6 (584.68, 189.84) and B7 (984.89, 109.56), B8 (1007.28, 219.39) respectively.

[0058] The positions of the corresponding positioning holes of the flange bracket of the front pump suction pipe and oil suction filter on the base plate 1 are determined by B1 (25.00, 60.00) and B2 (95.00, 180.00); the positions of the corresponding positioning holes of the flange bracket of the rear pump suction pipe and oil suction filter on the base plate 1 are determined by B3 (325.00, 60.00) and B4 (395.00, 180.00).

[0059] like Figure 8As shown, A1-A20 are the coordinates of the bolts fixed to the positioning holes. The position of the positioning hole corresponding to the second screw 13 on the front pump oil suction pipe flange bracket 2 on the base plate 1 is determined by A11 (1415.90, 266.50) and A12 (1295.90, 336.50). There are two front pump guide pipe positioning brackets 7. The positions of the positioning holes corresponding to the second screw 13 on the base plate 1 are respectively determined by A13 (863.29, 407.96), A14 (833.29, 515.96), and A15 (597.05, 407.96515.96), A16 (567.05, 515.96); there are also two 102 tube positioning brackets 6, and the positions of the positioning holes corresponding to the second screws 13 on the base plate 1 are determined by A17 (394.12, 377.75), A18 (296.54, 432.91) and A19 (122.93, 259.30), A20 (220.51, 204.15) respectively.

[0060] The position of the locating hole corresponding to the second screw 13 on the rear pump oil suction pipe flange bracket 3 on the base plate 1 is determined by A9 (1153.80, 91.50) and A10 (1273.80, 21.50); there are two rear pump guide pipe positioning brackets 4, and the positions of the locating holes corresponding to the second screw 13 on the base plate 1 are determined by A5 (554.75, 187.75), A6 (592.21, 82.11), A7 (977.36, 217.30), and A8 (1014.82, 111.66) respectively.

[0061] The positions of the corresponding positioning holes of the front pump suction pipe oil suction filter flange bracket 5.1 on the base plate 1 are determined by A1 (25.00, 180.00) and A2 (95.00, 60.00); the positions of the corresponding positioning holes of the rear pump suction pipe oil suction filter flange bracket 5.2 on the base plate 1 are determined by A3 (325.00, 180.00) and A4 (395.00, 60.00).

[0062] The precise correspondence between the locating pins, bolts and locating holes ensures the uniformity of the welding of the oil suction pipe.

[0063] This device is designed by simulating the actual assembly position of the front pump and rear pump oil suction pipes with the tunnel boring machine pump station and oil tank through a three-dimensional model, and the installation position of the oil suction pipes is fixed by fixing the oil suction pipe mounting flange. The oil suction pipes are welded with this device, and the installation position of the oil suction pipes after welding can be unified to achieve standardization and interchangeability of the oil suction pipe accessories.

[0064] In the description of the present invention, it should be understood that the positions or size relationships indicated by the terms "front", "rear", "upper", "lower", etc. are based on the positions or size relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0065] In addition, unless otherwise specified or limited, the terms "connected" and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0066] Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features, unless otherwise specifically specified.

[0067] 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned 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 tunnel boring machine oil suction pipe welding device, characterized in that: include: A front pump oil suction pipe positioning assembly, which is connected to the front pump oil suction pipe assembly of the roadheader to position the front pump oil suction pipe assembly; A rear pump oil suction pipe positioning assembly, which is connected to the rear pump oil suction pipe assembly of the roadheader to position the rear pump oil suction pipe assembly; An oil suction filter positioning assembly, the oil suction filter positioning assembly being connected to a first oil suction pipe mounting flange (05) of the tunnel boring machine oil suction pipe to position the first oil suction pipe mounting flange (05); A base plate (1) is provided with a plurality of positioning holes; the front pump oil suction pipe positioning assembly, the rear pump oil suction pipe positioning assembly and the oil suction filter positioning assembly are all provided on the base plate (1) and fixed with the positioning holes on the base plate (1) to achieve position positioning.

2. The oil suction pipe welding device for a tunnel boring machine according to claim 1, characterized in that: The front pump oil suction pipe positioning assembly comprises a front pump oil suction pipe flange bracket (2), a front pump guide pipe positioning bracket (7), a 102 pipe positioning bracket (6) and a front pump guide pipe (8); the front pump oil suction pipe flange bracket (2), the front pump guide pipe positioning bracket (7) and the 102 pipe positioning bracket (6) are respectively fixedly connected to the base plate (1), and the front pump guide pipe (8) is fixedly connected to the front pump guide pipe positioning bracket (7).

3. The oil suction pipe welding device for a tunnel boring machine according to claim 2, characterized in that: The rear pump oil suction pipe positioning assembly comprises a rear pump oil suction pipe flange bracket (3), a rear pump guide pipe positioning bracket (4) and a rear pump guide pipe (9); the rear pump oil suction pipe flange bracket (3) and the rear pump guide pipe positioning bracket (4) are respectively fixedly connected to the base plate (1), and the rear pump guide pipe (9) is fixedly connected to the rear pump guide pipe positioning bracket (4).

4. The oil suction pipe welding device for a tunnel boring machine according to claim 3, characterized in that: The oil suction filter positioning assembly comprises a front pump suction pipe oil suction filter flange bracket (5.1) and a rear pump suction pipe oil suction filter flange bracket (5.2); the front pump suction pipe oil suction filter flange bracket (5.1) is positioned with the first suction pipe mounting flange (05) of the front pump; and the rear pump suction pipe oil suction filter flange bracket (5.2) is positioned with the first suction pipe mounting flange (05) of the rear pump.

5. The device for welding the oil suction pipe of a roadheader according to claim 4, characterized in that: The front pump oil suction pipe flange bracket (2) and the rear pump oil suction pipe flange bracket (3) both include a first base (14) and a first bracket (15), the first base (14) and the first bracket (15) are vertically arranged, and the first base (14) is fixed to the positioning hole of the bottom plate (1).

6. The oil suction pipe welding device for a tunnel boring machine according to claim 5, characterized in that: The front pump suction pipe oil suction filter flange bracket (5.1) and the rear pump suction pipe oil suction filter flange bracket (5.2) both include a second base (16) and a second bracket (17); the second base (16) and the second bracket (17) are vertically arranged, and the second base (16) is fixed to the positioning hole of the bottom plate (1); the other end of the second bracket (17) is provided with a flange platform (5), and the flange platform (5) is connected to the first suction pipe mounting flange (05) of the tunnel boring machine suction pipe.

7. The oil suction pipe welding device for a roadheader according to claim 6, characterized in that: A first positioning pin (10) and a first screw (11) are provided on the first bracket (15) and the flange platform (5), and the first positioning pin (10) and the first screw (11) are fixedly connected to the oil suction pipe mounting flange (01) of the oil suction pipe of the tunnel boring machine.

8. The oil suction pipe welding device for a roadheader according to claim 6, characterized in that: The front pump guide tube positioning bracket (7), the 102 tube positioning bracket (6) and the rear pump guide tube positioning bracket (4) are all "I"-shaped brackets, including a third base (18), a third bracket (19) and a fourth bracket (20); the third base (18) is fixed to the positioning holes corresponding to the bottom plate (1), the third bracket (19) is vertically arranged with the third base (18), and the fourth bracket (20) is parallel to the third base (18) and vertically arranged at the other end of the third bracket (19); a groove is arranged on the top of the fourth bracket (20) to form a "V"-shaped positioning block.

9. The oil suction pipe welding device for a roadheader according to claim 8, characterized in that: The first base (14), the second base (16) and the third base (18) are each provided with a second positioning pin (12) and a second screw (13), and the second positioning pin (12) and the second screw (13) are fixedly connected to the positioning hole of the bottom plate (1).

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