Marine diesel engine SCR reactor assembly bracket tool

Abstract

The utility model provides a marine diesel engine SCR (Selective Catalytic Reduction) reactor assembly bracket tool which is characterized in that a first carrier roller frame is arranged at the top of a first carrier roller base, a driving carrier roller is arranged on the first carrier roller frame, and the driving carrier roller is connected with a carrier roller driving device for driving the driving carrier roller to rotate; a second carrier roller base is arranged on the other side of the first carrier roller base in parallel, and a driven carrier roller device is installed on the top of the second carrier roller base in a supporting mode. The inlet side bracket is used for being matched with the driving carrier roller in a supporting manner; the inlet side bracket is mounted on an inlet flange of the SCR reactor assembly in a matched manner; the device further comprises an outlet side bracket used for being matched with the driven carrier roller device in a supporting mode, and the outlet side bracket is installed on an outlet flange of the SCR reactor assembly in a matched mode. According to the tool, an operator can conveniently climb over a product, the original circumferential welding seam is adjusted to be flat burning welding through rotation of the carrier rollers, meanwhile, a reliable working platform is provided for a welding machine and the operator, and the safety of the operator and equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly welding of a marine diesel engine SCR reactor, and mainly relates to a marine diesel engine SCR reactor assembly bracket tooling. Background Art

[0002] The marine diesel engine SCR exhaust after-treatment system is a catalyst block that can remove NO X An exhaust treatment system that converts N2 and H20 through selective catalytic reduction reaction. With increasingly stringent environmental protection requirements, this system has a very broad market and application prospects. The SCR reactor in this system is a circular rotary structure, and the large-scale SCR reactor has the characteristics of huge size (such as the size of the SCR reactor of the 6G80ME-C10.5-110 series reaches 7000*4000*4000mm) and huge turning radius (such as the turning radius of the SCR reactor of the 6G80ME-C10.5-110 series reaches about 2400mm). The circular rotary structure allows it to be mounted on a roller frame for rotational assembly, welding and assembly, but due to its large number of models and different sizes, a universal bracket tooling is urgently needed during assembly, welding and assembly, and the tooling size is adjusted to adapt to the assembly of SCR reactors of various sizes. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a marine diesel engine SCR reactor assembly bracket fixture, which is convenient for the operator to climb on the top of the product, and then adjust the original circumferential weld to a flat weld by rotating the roller. At the same time, it provides a reliable working platform for the welder and the operator to ensure the safety of the operator and the equipment. Furthermore, the design of the bracket fixture ensures the versatility of the fixture, and the height and extension length of the fixture springboard can be changed by limiting the height and length of the fixture to adapt to the welding of products of different sizes.

[0004] In order to realize the above technical features, the purpose of the utility model is achieved as follows: a marine diesel engine SCR reactor assembly bracket tooling, including a first roller base, a first roller frame is installed on the top of the first roller base, an active roller is installed on the first roller frame, and the active roller is connected to a roller driving device for driving the rotation thereof;

[0005] A second roller base is arranged in parallel on the other side of the first roller base, and a driven roller device is installed on the top support of the second roller base;

[0006] It also includes an inlet side bracket for supporting and cooperating with the active roller, and the inlet side bracket is mounted on the inlet flange of the SCR reactor assembly;

[0007] It further includes an outlet side bracket for supporting and cooperating with the driven idler device, and the outlet side bracket is cooperatively installed on the outlet flange of the SCR reactor assembly.

[0008] The idler driving device includes a motor, the output shaft of the motor is connected to the input shaft of a speed reducer, and the output shaft of the speed reducer is connected to the main shaft of one of the driving idlers.

[0009] The driven idler device includes a second idler bracket, the second idler bracket is hinged to the top of the second idler base, and a driven idler is installed on the second idler bracket.

[0010] The inlet side bracket and the outlet side bracket adopt the same structural form. Among them, the inlet side bracket includes a web for cooperating with the inlet flange through a first bolt, a first gasket and a first nut, and a cylinder is arranged at the edge of the web, and the outer surface of the cylinder is in contact cooperation with the inlet side bracket.

[0011] Reinforcing plates are symmetrically arranged on the two outer side walls of the cylinder and the web.

[0012] For SCR reactor assemblies of different sizes and models, the inlet side bracket further includes a transition plate, the inner ring of the transition plate is cooperatively connected with the corresponding inlet flange through a bolt assembly, and the outer ring of the transition plate is cooperatively connected with the inner ring of the web through a bolt assembly.

[0013] A counterweight assembly is cooperatively installed on the outer side walls of the corresponding webs of the inlet side bracket and the outlet side bracket in a detachable manner.

[0014] The counterweight assembly includes a first counterweight block and a second counterweight block, and the second counterweight blocks are symmetrically arranged on both sides of the first counterweight block; the first counterweight block and the second counterweight block are respectively fixedly connected to the web through long bolt assemblies, and a positioning pin assembly is arranged between the first counterweight block and the second counterweight block and the web.

[0015] The long bolt assembly includes a long bolt, a second gasket is arranged between the long bolt and the first counterweight block or the second counterweight block, the other end of the long bolt passes through the corresponding first counterweight block or second counterweight block and the web, and a second nut is fixedly installed at the end.

[0016] The positioning pin assembly includes a positioning shaft positioned on the corresponding first counterweight block and second counterweight block, the tapered end of the positioning shaft is matched with the positioning hole on the web, and the end of the positioning shaft is positioned on the web through a third gasket and a screw.

[0017] The utility model has the following beneficial effects:

[0018] 1. Under the action of the SCR reactor assembly bracket tooling, the welding process and assembly of the SCR reactor become more efficient. Especially after adjusting the circumferential weld to a flat weld through the roller stand, the welding operation difficulty is greatly reduced, and the forming quality of the weld is greatly improved. This not only reduces the production cost but also improves the welding quality of the product.

[0019] 2. At the same time, this tooling can be adapted to the welding of SCR reactors with different outer diameters by adjusting the dimensions. One tooling can meet the production needs of a large number of products with different models, showing obvious economic benefits.

[0020] 3. In addition, this tooling also provides strong protection for the personal safety of welding operators and the safety of welding equipment. It can be said that this tooling has obvious beneficial effects in many aspects.

[0021] 4. The counterweight mounting plate is made of 40mm carbon steel plate through welding. The flange bolt holes on the upper flange of the tooling must be machined to ensure the detachable property for personnel safety. This design has a simple structure and complete functions. It can make the SCR reactor rotate 360 degrees, not only with higher welding efficiency but also better forming quality of the weld, and effectively ensure the quality of the assembly.

[0022] 5. The main body of the bracket of the present utility model is made of steel plates with different outer diameters through blanking, machining, and welding. This can not only ensure the strength of the tooling, save materials, but also ensure the light weight of the tooling, facilitating lifting during the later use process. Connecting flanges for bolt connection with the product flange are welded on the tooling. Different from that, a connecting positioning shaft for guiding during connection is also welded on the inner hole of the upper connecting flange. During the actual use process, brackets with different heights and quantities can be made according to different sizes of the product, and bolt connections are used between them to adjust the maximum use size of the tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0024] Figure 1 It is a three-dimensional view of the overall structure of the present utility model.

[0025] Figure 2 It is the front view of the overall structure of the present utility model.

[0026] Figure 3 It is the side view of the overall structure of the present utility model.

[0027] Figure 4 It is the connection structure diagram of the G80 reactor of the present utility model and the inlet side bracket.

[0028] Figure 5Structural diagram of the connection between the G70 / G60 reactor of the present utility model and the inlet-side bracket.

[0029] Figure 6 Structural diagram of the connection between the G60 / G50 reactor of the present utility model and the inlet-side bracket.

[0030] Figure 7 Structural diagram of the connection between the G50 reactor of the present utility model and the inlet-side bracket.

[0031] Figure 8 Front view of the connection between the first counterweight block and the second counterweight block of the present utility model and the web.

[0032] Figure 9 Side sectional view of the connection between the first counterweight block and the second counterweight block of the present utility model and the web.

[0033] Figure 10 For the present utility model Figure 8 View A-A in

[0034] Figure 11 For the present utility model Figure 9 Partial view I in

[0035] Figure 12 Front view of the web of the present utility model.

[0036] Figure 13 Front view of one of the transition plates of the present utility model.

[0037] In the figure: first idler base 1, motor 2, reducer 3, driving idler 4, first idler support 5, inlet-side bracket 6, inlet flange 7, SCR reactor assembly 8, outlet flange 9, outlet-side bracket 10, second idler support 11, driven idler 12, second idler base 13, first counterweight block 14, second counterweight block 15, long bolt assembly 16, positioning pin assembly 17;

[0038] Cylinder 601, rib plate 602, web 603, first bolt 604, first nut 605, first gasket 606, transition plate 607;

[0039] Second nut 1601, second gasket 1602, long bolt 1603;

[0040] Screw 1701, third gasket 1702, positioning shaft 1703. Detailed implementation manners

[0041] The following further describes the implementation manners of the present utility model with reference to the accompanying drawings.

[0042] Embodiment 1:

[0043] SeeFigures 1-13 , a marine diesel engine SCR reactor assembly bracket tooling, including a first idler base 1, a first idler bracket 5 is installed on the top of the first idler base 1, a driving idler 4 is installed on the first idler bracket 5, and the driving idler 4 is connected to an idler driving device for driving its rotation; on the other side of the first idler base 1, a second idler base 13 is arranged in parallel, and a driven idler device is supported and installed on the top of the second idler base 13; it also includes an inlet side bracket 6 for supporting and cooperating with the driving idler 4, and the inlet side bracket 6 is cooperatively installed on the inlet flange 7 of the SCR reactor assembly 8; it also includes an outlet side bracket 10 for supporting and cooperating with the driven idler device, and the outlet side bracket 10 is cooperatively installed on the outlet flange 9 of the SCR reactor assembly 8. By adopting the above-mentioned assembly bracket tooling, it is convenient for the operator to climb directly above the product, and then through the rotation of the idlers, the original circumferential weld is adjusted to a flat weld. At the same time, a reliable working platform is provided for the welder and the operator, ensuring the safety of the operator and the equipment.

[0044] Furthermore, the idler driving device includes a motor 2, the output shaft of the motor 2 is connected to the input shaft of a reducer 3, and the output shaft of the reducer 3 is connected to the main shaft of one of the driving idlers 4. Through the above-mentioned idler driving device, power for rotation can be provided. During the working process, the motor 2 drives the reducer 3, the reducer 3 drives the driving idler 4, and the driving idler 4 drives the SCR reactor assembly 8 at the top of the support to rotate.

[0045] Furthermore, the driven idler device includes a second idler bracket 11, the second idler bracket 11 is hinged on the top of the second idler base 13, and a driven idler 12 is installed on the second idler bracket 11. Through the above-mentioned driven idler device, reliable rotational support for the outlet side bracket 10 can be achieved.

[0046] Furthermore, the inlet side bracket 6 and the outlet side bracket 10 adopt the same structural form. Among them, the inlet side bracket 6 includes a web 603 for cooperating with the inlet flange 7 through a first bolt 604, a first gasket 606 and a first nut 605. A cylinder 601 is arranged at the edge of the web 603, and the outer surface of the cylinder 601 is in contact and cooperation with the inlet side bracket 6. Through the above-mentioned inlet side bracket 6 and outlet side bracket 10, rotational support for the entire SCR reactor assembly 8 is ensured.

[0047] Furthermore, stiffeners 602 are symmetrically arranged on the two outer side walls of the cylinder 601 and the web 603. The stiffeners 602 enhance the support structural strength between the cylinder 601 and the web 603.

[0048] Further, for the SCR reactor assembly 8 of different size models, the inlet side bracket 6 further includes a transition plate 607. The inner ring of the transition plate 607 is connected to the corresponding inlet flange 7 through a bolt assembly, and the outer ring of the transition plate 607 is connected to the inner ring of the web 603 through a bolt assembly. This bracket tooling design ensures the versatility of the tooling. By limiting the height and length in two directions on the tooling, the height and extension length of the tooling springboard can be changed to adapt to the welding of products of different sizes. When it is necessary to replace the SCR reactor assembly 8 of different models, only the corresponding sized transition plate 607 and web 603 need to be selected to adapt to different SCR reactor assemblies 8.

[0049] Further, a counterweight assembly is detachably mounted on the outer side walls of the corresponding webs 603 of the inlet side bracket 6 and the outlet side bracket 10. Through the above counterweight assembly, the flange bolt holes on the tooling must be machined to ensure the detachability for personnel safety. This design has a simple structure but complete functions, enabling the 360-degree rotation of the SCR reactor, not only with higher welding efficiency, better weld forming quality, but also effectively ensuring the quality of the assembled assembly.

[0050] Further, the counterweight assembly includes a first counterweight block 14 and a second counterweight block 15, and the second counterweight blocks 15 are symmetrically arranged on both sides of the first counterweight block 14; the first counterweight block 14 and the second counterweight block 15 are respectively fixedly connected to the web 603 through long bolt assemblies 16, and a positioning pin assembly 17 is provided between the first counterweight block 14 and the second counterweight block 15 and the web 603.

[0051] Further, the long bolt assembly 16 includes a long bolt 1603, a second gasket 1602 is provided between the long bolt 1603 and the first counterweight block 14 or the second counterweight block 15, and the other end of the long bolt 1603 passes through the corresponding first counterweight block 14 or the second counterweight block 15 and the web 603, and a second nut 1601 is fixedly installed at the end. Through the above long bolt assembly 16, the reliable fixation of the first counterweight block 14 or the second counterweight block 15 can be achieved.

[0052] Further, the positioning pin assembly 17 includes a positioning shaft 1703 positioned on the corresponding first counterweight block 14 and the second counterweight block 15. The tapered end of the positioning shaft 1703 is matched with the positioning hole on the web 603, and the end of the positioning shaft 1703 is positioned on the web 603 through a third gasket 1702 and a screw 1701. Through the above positioning pin assembly 17, the reliable positioning of the first counterweight block 14 and the second counterweight block 15 can be achieved.

[0053] Example 2:

[0054] A method for using a tooling for the bracket of an SCR reactor assembly of a marine diesel engine, comprising the following steps:

[0055] Step 1, selection of the sizes of the inlet-side bracket 6 and the outlet-side bracket 10:

[0056] According to the size of the SCR reactor assembly 8 to be assembled and welded, select the inlet-side bracket 6 and the outlet-side bracket 10 with corresponding sizes to ensure that the SCR reactor assembly 8 installed with the inlet-side bracket 6 and the outlet-side bracket 10 can rotate smoothly on the driving idler 4 and the driven idler device;

[0057] Step 2, fixed installation of the inlet-side bracket 6 and the outlet-side bracket 10:

[0058] After the sizes of the inlet-side bracket 6 and the outlet-side bracket 10 are selected, install the inlet-side bracket 6 correspondingly on the inlet flange 7 and install the outlet-side bracket 10 correspondingly on the outlet flange 9;

[0059] Step 3, overall hoisting and placement of the SCR reactor assembly 8:

[0060] After the SCR reactor assembly 8 installed with the inlet-side bracket 6 and the outlet-side bracket 10 is hoisted as a whole, it is roll-supported on the corresponding driving idler 4 and the driven idler device, and ensure that the driving idler 4 can drive the SCR reactor assembly 8 to rotate smoothly;

[0061] Step 4, installation of the first counterweight 14 and the second counterweight 15:

[0062] Select the first counterweight 14 and the second counterweight 15 with corresponding size models, and install the first counterweight 14 and the second counterweight 15 cooperatively on the outer walls of the corresponding webs 603 of the inlet-side bracket 6 and the outlet-side bracket 10;

[0063] Step 5, assembly welding of the SCR reactor assembly 8:

[0064] Start the idler driving device, drive the driving idler 4 through the idler driving device, drive the inlet-side bracket 6 to rotate through the driving idler 4, and then drive the entire SCR reactor assembly 8 to rotate through the inlet-side bracket 6, and then adjust the circumferential weld to be a flat weld above the SCR reactor assembly 8, thereby improving the welding efficiency and welding quality of the product;

[0065] Among them, after the assembly welding of an SCR reactor assembly 8 of a certain model is completed, disassemble the corresponding inlet-side bracket 6 and outlet-side bracket 10, selectively install the transition plate 607 to adapt to different models of SCR reactor assemblies 8, and then repeat steps 2 to 5.

Claims

1. A bracket tooling for a marine diesel engine SCR reactor assembly, characterized in that, It includes a first idler base (1). A first idler support (5) is installed on the top of the first idler base (1). A driving idler (4) is installed on the first idler support (5). The driving idler (4) is connected to an idler driving device for driving its rotation. On the other side of the first idler base (1), a second idler base (13) is arranged in parallel. A driven idler device is supported and installed on the top of the second idler base (13). It also includes an inlet side bracket (6) for supporting and cooperating with the driving idler (4). The inlet side bracket (6) is cooperatively installed on the inlet flange (7) of the SCR reactor assembly (8). It also includes an outlet side bracket (10) for supporting and cooperating with the driven idler device. The outlet side bracket (10) is cooperatively installed on the outlet flange (9) of the SCR reactor assembly (8).

2. The bracket tooling for the SCR reactor assembly of a marine diesel engine according to claim 1, wherein: The idler driving device includes a motor (2). The output shaft of the motor (2) is connected to the input shaft of a speed reducer (3). The output shaft of the speed reducer (3) is connected to the main shaft of one of the driving idlers (4).

3. The fixture for the SCR reactor assembly bracket of a marine diesel engine according to claim 2, characterized in that: The driven idler device includes a second idler support (11). The second idler support (11) is hinged on the top of the second idler base (13). A driven idler (12) is installed on the second idler support (11).

4. The fixture for the SCR reactor assembly bracket of a marine diesel engine according to claim 1, characterized in that: The inlet side bracket (6) and the outlet side bracket (10) adopt the same structural form. Among them, the inlet side bracket (6) includes a web (603) for cooperatively connecting with the inlet flange (7) through a first bolt (604), a first gasket (606) and a first nut (605). A cylinder (601) is arranged at the edge of the web (603). The outer surface of the cylinder (601) is in contact and cooperation with the inlet side bracket (6).

5. The bracket tooling for the SCR reactor assembly of a marine diesel engine according to claim 4, wherein: Reinforcing plates (602) are symmetrically arranged on the two outer side walls of the cylinder (601) and the web (603).

6. The fixture for the SCR reactor assembly bracket of a marine diesel engine according to claim 4, characterized in that: For SCR reactor assemblies (8) of different sizes and models, the inlet side bracket (6) also includes a transition plate (607). The inner ring of the transition plate (607) is cooperatively connected with the corresponding inlet flange (7) through a bolt assembly. The outer ring of the transition plate (607) is cooperatively connected with the inner ring of the web (603) through a bolt assembly.

7. The bracket tooling for the SCR reactor assembly of a marine diesel engine according to claim 4, characterized in that: A counterweight assembly is cooperatively installed on the outer side wall of the corresponding web (603) of the inlet side bracket (6) and the outlet side bracket (10) in a detachable manner.

8. The fixture for the SCR reactor assembly bracket of a marine diesel engine according to claim 7, characterized in that: The counterweight assembly includes a first counterweight block (14) and a second counterweight block (15). The second counterweight blocks (15) are symmetrically arranged on both sides of the first counterweight block (14). The first counterweight block (14) and the second counterweight block (15) are respectively fixedly connected to the web (603) through long bolt assemblies (16). And a positioning pin assembly (17) is arranged between the first counterweight block (14) and the second counterweight block (15) and the web (603).

9. The bracket tooling for the SCR reactor assembly of a marine diesel engine according to claim 8, characterized in that: The long bolt assembly (16) includes a long bolt (1603). A second gasket (1602) is provided between the long bolt (1603) and the first counterweight (14) or the second counterweight (15). The other end of the long bolt (1603) passes through the corresponding first counterweight (14) or second counterweight (15) and the web (603), and a second nut (1601) is fixedly installed at the end. The positioning pin assembly (17) includes a positioning shaft (1703) positioned on the corresponding first counterweight (14) and second counterweight (15). The tapered end of the positioning shaft (1703) is matched with the positioning hole on the web (603), and the end of the positioning shaft (1703) is positioned on the web (603) through a third gasket (1702) and a screw (1701).

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