Cooling device for impeller welding

Abstract

The utility model provides a cooling device for impeller welding, which comprises an overflow mechanism, a rotating assembly and a water inlet mechanism, the overflow mechanism comprises an adjusting assembly and an overflow container, the adjusting assembly is arranged in the overflow container and is used for bearing a fan blade disc of an impeller to be welded so as to adjust the distance between the impeller and an opening of the overflow container, and the rotating assembly is arranged in the overflow container. The overflow mechanism is rotatably arranged on the rotating assembly so that the impeller can rotate, the water inlet mechanism is arranged on the impeller cover of the impeller and suitable for being fixedly connected with the adjusting assembly, and the water inlet mechanism communicates with an inlet of the impeller cover and is used for injecting cooling liquid into the impeller. The overflow container is used for receiving the cooling liquid discharged from the impeller, the cooling liquid can be injected into the impeller through the water inlet mechanism, so that heat generated by welding is taken away in time, the quality of the impeller is guaranteed, the impeller is rotated through the rotating assembly, workers do not need to carry the impeller for adjustment, and use is quite convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of impeller welding, and further relates to a cooling device for impeller welding. BACKGROUND

[0002] The impeller is one of important components of a centrifugal pump, and mainly serves to drive water to move in a centrifugal manner through rotation to enable the centrifugal pump to work. In an impeller welding process of a centrifugal fan, in order to prevent the impeller from being deformed, the rear disc and the blades of the impeller are first welded to form a fan disc, the front disc and the blades are spot-welded to form a wheel cover, and then the wheel cover is welded and fixed to one side of the fan disc. This process mainly divides the impeller into multiple parts for separate processing, and then completes assembly by welding.

[0003] In the prior art, the subsequent welding generally needs to place the fan disc and the wheel cover on a welding table, and then a welding gun is used to weld on the outer surface of the wheel cover to realize welding and fixing of the wheel cover and the fan disc. However, in this process, the welding gun generates a large amount of heat, but the existing welding table does not have the function of quickly cooling the impeller, and can only rely on the impeller itself to perform inefficient cooling. The inefficient cooling causes part of the heat to accumulate in the interior of the impeller, which affects the hardness of the impeller and easily causes the impeller to be deformed. Residual stress generated by welding also affects subsequent processing accuracy, and in severe cases, the moving blades can be burned. Moreover, the position of the welding equipment needs to be manually adjusted by the worker according to actual needs to meet the welding of different parts of the impeller, which is inconvenient to use.

[0004] Therefore, the present application is committed to providing a cooling device for impeller welding to solve the above technical problems. CONTENT OF THE PRESENT APPLICATION

[0005] In view of the above technical problems, the present application aims to provide a cooling device for impeller welding, which is designed to adjust the to-be-welded part of the impeller to a suitable position through the cooperation of the adjusting assembly, the water inlet mechanism and the rotary driving mechanism, thereby reducing the labor intensity of the worker, and also injecting cooling liquid into the impeller to reduce the temperature during welding of the impeller, and ensure the quality and welding effect of the impeller.

[0006] In order to achieve the above-mentioned purpose, the present application provides a cooling device for impeller welding, comprising:

[0007] An overflow mechanism, the overflow mechanism comprises an adjusting assembly and an overflow container, the adjusting assembly is arranged in the overflow container and is used to carry the fan disc of the impeller to be welded, so as to adjust the distance between the impeller and the opening of the overflow container;

[0008] A rotating assembly, the rotating assembly is in transmission connection with the overflow mechanism and is used to drive the overflow mechanism to rotate;

[0009] a water inlet mechanism arranged on the wheel cover of the impeller and adapted to be fixedly connected with the adjusting assembly, the water inlet mechanism being in communication with the inlet of the wheel cover and being used for injecting cooling liquid into the impeller, and the overflow container being used for receiving the cooling liquid flowing out of the impeller.

[0010] In some embodiments, a liquid collecting container is further included, the rotating assembly is arranged in the liquid collecting container, and the overflow container is correspondingly arranged in the liquid collecting container.

[0011] The liquid collecting container is used for receiving the cooling liquid flowing out of the overflow container and discharging the cooling liquid.

[0012] In some embodiments, the water inlet mechanism comprises:

[0013] a housing, one end of the housing being provided with a water inlet, and the other end of the housing being adapted to be in communication with the inlet of the wheel cover;

[0014] a buffer inner tube, the buffer inner tube being fixedly installed in the housing to form a buffer space between the buffer inner tube and the housing, the buffer inner tube being in communication with the water inlet, and a plurality of water permeable holes being provided on the buffer inner tube and being in communication with the buffer space;

[0015] a connecting piece, one end of the connecting piece being fixedly connected with the buffer inner tube, and the other end of the connecting piece being adapted to be connected with the adjusting assembly.

[0016] In some embodiments, the adjusting assembly comprises:

[0017] an adjusting joint, one end of the adjusting joint being provided with a threaded hole, and the other end of the adjusting joint being provided with a protruding portion adapted to be connected with the connecting piece, the protruding portion being adapted to be inserted into the central hole of the fan disc, so that the end of the adjusting joint away from the threaded hole is abutted against the fan disc;

[0018] a first threaded rod, the first threaded rod being arranged in the overflow container and being used for being threadedly connected with the threaded hole.

[0019] In some embodiments, the connecting piece is arranged as a second threaded rod, one end of the second threaded rod being threadedly connected with the buffer inner tube.

[0020] a mounting hole being provided on the protruding portion, and the other end of the second threaded rod being adapted to be clamped and matched with the mounting hole through the central hole of the fan disc.

[0021] In some embodiments, a locking assembly is arranged on the collecting container, which is adapted to be clamped with the overflow container to fix the overflow container on the rotating assembly.

[0022] In some embodiments, an exhaust port is arranged on the water inlet mechanism.

[0023] In some embodiments, the rotating assembly comprises:

[0024] a support arranged in the collecting container;

[0025] a fixing disc arranged on the upper end surface of the support;

[0026] a rotating disc rotatably arranged on the side of the fixing disc away from the support, and the overflow container is arranged on the rotating disc.

[0027] In some embodiments, the shell comprises an outer tube and an upper cover body, the upper cover body is in sealed connection with one end of the outer tube through a sealing piece, the water inlet port is arranged on the upper cover body, and the buffer inner tube is arranged in the outer tube and fixedly connected with the upper cover body.

[0028] The end of the outer tube away from the upper cover body is adapted to be in communication with the inlet of the wheel cover.

[0029] In some embodiments, a drain pipe is arranged on the collecting container.

[0030] Compared with the prior art, the cooling device for impeller welding has the following beneficial effects:

[0031] 1. The cooling device for impeller welding has the following beneficial effects:

[0032] 2. The cooling device for impeller welding has the liquid collecting container and the overflow container correspondingly arranged, so that the cooling liquid flowing out of the outlet of the fan disc can flow into the overflow container, when the overflow container is full of the cooling liquid, the cooling liquid can flow into the liquid collecting container from the outlet of the overflow container and be discharged through the liquid collecting container, so that the cooling liquid is collected in a planned way.

[0033] 3. The cooling device for impeller welding has the locking assembly arranged on the liquid collecting container, after the part to be welded of the impeller is rotated to the appropriate position, the overflow container can be fixed on the rotating assembly through the locking assembly, so that the overflow container stops rotating, and the stability and reliability during the welding of the impeller are ensured.

[0034] 4. The cooling device for impeller welding has the plurality of water permeable holes arranged on the buffer inner tube, the cooling liquid can be discharged to the buffer space from the water permeable holes after entering the buffer inner tube through the water inlet, the flow speed of the cooling liquid can be reduced, and the cooling effect of the cooling liquid is ensured.

[0035] 5. The cooling device for impeller welding adjusts the height of the impeller through the adjusting assembly, so that the outlet of the fan disc is located below the outlet of the overflow container, when the overflow container is full of the cooling liquid, the fan disc is in the cooling liquid, and the cooling effect is further improved, and the wheel cover is located above the opening of the overflow container, so that the welding effect of the wheel cover and the fan disc is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0036] The above characteristics, technical features, advantages and implementation modes of the present application will be further described in the following preferred embodiments in a clear and understandable manner in combination with the drawings.

[0037] Figure 1 is a structural schematic view of the cooling device for impeller welding provided by the present application;

[0038] Figure 2 is a structural schematic view of the water inlet mechanism and the impeller in cooperation provided by the present application;

[0039] Figure 3 is a structural schematic view of the adjusting joint of the adjusting assembly provided by the present application;

[0040] Figure 4 is a structural schematic view of the upper cover body of the adjusting assembly provided by the present application;

[0041] Figure 5 is a structural schematic view of the buffer inner tube of the water inlet mechanism provided by the present application.

[0042] EXPLANATION OF DRAWINGS:

[0043] overflow mechanism 1, overflow container 11, adjusting assembly 12, adjusting joint 121, protrusion 122, first threaded rod 123, nut 124, rotating assembly 2, support 21, fixed disc 22, rotating disc 23, water inlet mechanism 3, outer tube 31, upper cover body 32, water inlet 321, buffer inner tube 33, water permeable hole 331, buffer space 34, connecting piece 35, air outlet 36, impeller 4, fan disc 41, outlet 411, inlet 412, wheel cover 42, liquid collecting container 5, drain pipe 51, locking assembly 52, lock catch seat 521, sliding seat 522, locking rod 523. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, specific implementation manners of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative effort, and other embodiments can also be obtained.

[0045] In order to make the drawing simple, only the parts related to the application are shown in the drawings, and they do not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0046] It should be further understood that the term "and / or" used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0047] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0049] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0050] The impeller 4 is a key component of the centrifugal pump, and its main function is to promote water flow to generate centrifugal force through its own rotation, thereby realizing the operation of the centrifugal pump. In the prior art, the welding of the fan disc 41 and the wheel cover 42 of the impeller 4 is completed on a welding table. A large amount of heat can be generated when the two are welded. The existing welding table cannot quickly cool the impeller 4, and the generated heat can only be eliminated by the impeller 4 itself, which will adversely affect the hardness of the impeller 4 and easily cause the impeller 4 to deform, affecting the subsequent machining precision. In addition, the welding table cannot adjust the position of the impeller 4, and the position of the welding equipment is mainly adjusted manually by personnel, which is inconvenient for welding.

[0051] Therefore, a cooling device for impeller welding is described, which injects cooling liquid into the impeller 4 through the water inlet mechanism 3, removes the heat generated during welding of the impeller 4 through the cooling liquid, and adjusts the position of the impeller 4 to be welded through the adjusting assembly 12 and the rotating assembly 2, thereby reducing the labor intensity of the workers.

[0052] Specifically, referring to the drawings Figures 1 to 5 A cooling device for impeller welding includes an overflow mechanism 1, a rotating assembly 2 and a water inlet mechanism 3. The overflow mechanism is composed of an adjusting assembly 12 and an overflow container 11. The overflow container 11 is provided with a containing cavity, and one end of the overflow container 11 is provided with an opening communicating with the containing cavity. Correspondingly, the adjusting assembly 12 is arranged in the containing cavity of the overflow container 11, mainly used for bearing the fan disc 41 of the impeller 4 to be welded, so as to set the impeller 4 on the adjusting assembly 12. The distance between the impeller 4 and the opening of the overflow container 11 can be adjusted through the adjusting assembly 12.

[0053] Correspondingly, the overflow container 11 of the overflow mechanism 1 is rotatably arranged on the rotating assembly 2, so that the impeller 4 can drive the impeller 4 to rotate synchronously when the impeller 4 is arranged on the adjusting assembly 12, so that the impeller 4 can be adjusted to a suitable position under the cooperation of the adjusting assembly 12 and the rotating assembly 2, without the need for workers to manually carry the impeller 4 or adjust the welding table, and the operation is very convenient.

[0054] In addition, the water inlet mechanism 3 is arranged at the wheel cover 42 of the impeller 4 and is adapted to be fixedly connected with the adjusting assembly 12, so as to ensure that the water inlet mechanism 3 can be adjusted together with the adjusting assembly 12 and the overflow container 11. Correspondingly, the water inlet mechanism 3 is connected with the inlet 412 of the wheel cover 42, for conveying the cooling liquid into the impeller 4 through the inlet 412.

[0055] It should be noted that, referring to the drawings attached to the specification Figure 2 The impeller 4 includes the wheel cover 42 and the fan disc 41 arranged on one side of the wheel cover 42, and the inlet 412 is arranged at one end of the wheel cover 42 for water extracted by the centrifugal pump to enter, and a plurality of outlets 411 are arranged on the circumferential side of the fan disc 41, so that the cooling liquid injected into the impeller 4 by the water inlet mechanism 3 flows into the fan disc 41 after passing through the wheel cover 42 and then flows out through the outlets 411. Correspondingly, the cooling liquid flowing out of the outlets 411 can enter the overflow container 11, and the cooling liquid can be collected in the overflow container 11, so that the cooling liquid can be injected into the impeller 4 for a long time to ensure the cooling effect.

[0056] In the cooling device for impeller welding provided in the embodiment, the impeller 4 can be cooled by the water inlet mechanism 3 to ensure the properties and welding precision of the impeller 4, and the position of the impeller 4 can be adjusted by the adjusting assembly 12 and the rotating assembly 2, so as to facilitate the workers to weld different areas to be welded on the impeller 4.

[0057] In one embodiment, referring to the drawings attached to the specification Figure 1 and Figure 2 A cooling device for impeller welding is further described. The cooling device further includes a liquid collecting container 5, which is arranged corresponding to the overflow container 11. Correspondingly, the rotating assembly 2 is arranged in the liquid collecting container 5, and the overflow mechanism 1 is arranged on the rotating assembly 2.

[0058] The cooling liquid enters the impeller 4 through the water inlet mechanism 3 and then flows out of the impeller 4 through the outlets 411, and the discharged cooling liquid enters the overflow container 11. As the cooling liquid continuously accumulates, the overflow container 11 is filled with the cooling liquid, and the cooling liquid overflows from the overflow container 11 into the liquid collecting container 5. The liquid collecting container 5 is used to collect the cooling liquid and discharge the cooling liquid from the liquid collecting container 5.

[0059] It should be noted that the liquid collecting container 5 is arranged corresponding to the overflow container 11, and the overflow container 11 can be arranged in the liquid collecting container 5 or above the liquid collecting container 5, so that the cooling liquid overflowing from the overflow container 11 can flow into the liquid collecting container 5. The liquid collecting container 5 is provided with a drain pipe 51 which can be opened and closed, when the drain pipe 51 is closed, the cooling liquid flows into the liquid collecting container 5, and when the drain pipe 51 is opened, the cooling liquid can be discharged from the liquid collecting container 5 through the drain pipe 51.

[0060] Further, the liquid collecting container 5 is provided with a locking assembly 52 which is adapted to be clamped with the overflow container 11 to fix the overflow container 11 on the rotating assembly 2.

[0061] It can be understood that the overflow container 11 can be rotated relative to the liquid collecting container 5 through the rotating assembly 2 to rotate the area to be welded on the impeller 4 to a suitable position, and after the impeller 4 is adjusted to the suitable position, the locking assembly 52 can be clamped with the overflow container 11 to prevent the overflow container 11 from rotating, so as to ensure the stability of the impeller 4 during welding, thereby ensuring the welding effect of the impeller 4.

[0062] Of course, in actual production application, the locking assembly 52 can also be arranged on the overflow container 11, and the locking assembly 52 can be clamped with the liquid collecting container 5 to fix the overflow container 11. Herein, details are not described one by one, and all are within the protection scope of the present application.

[0063] Specifically, the locking assembly 52 comprises a locking seat 521, a sliding seat 522 and a locking rod 523, wherein the locking seat 521 is fixedly installed at the edge of the opening of the overflow container 11, the sliding seat 522 is arranged at the edge of the opening of the liquid collecting container 5 and is adapted to move along the circumference of the liquid collecting container 5, and one end of the locking rod 523 is rotatably arranged on the sliding seat 522. A notch groove is arranged on the locking seat 521 and adapted to be clamped with the other end of the locking rod 523. When the impeller 4 is rotated to a suitable position, the sliding seat 522 can be moved to correspond to the locking seat 521, and the locking rod 523 can be rotated to clamp the other end of the locking rod 523 with the notch groove of the locking seat 521, so as to fix the impeller 4. Correspondingly, when the locking rod 523 is disengaged from the locking seat 521, the impeller 4 can be freely rotated.

[0064] In one embodiment, referring to the drawings, the overflow container 11 is arranged on the rotating assembly 2, and the rotating assembly 2 is arranged on the liquid collecting container 5. Figure 2The embodiment provides a specific structure of the water inlet mechanism 3. The water inlet mechanism 3 comprises a shell, a buffer inner tube 33 and a connecting piece 35, the shell is sleeved outside the buffer inner tube 33, and the buffer inner tube 33 is fixedly connected with the shell. Correspondingly, a water inlet 321 is arranged at one end of the shell, the water inlet 321 is communicated with the buffer inner tube 33, and is used for injecting the cooling liquid into the buffer inner tube 33. In addition, a buffer space is formed between the buffer inner tube 33 and the shell, a plurality of water permeable holes 331 are arranged on the buffer inner tube 33 and communicated with the buffer space, and the other end of the shell is adapted to be communicated with the inlet 412 of the wheel cover 42, so that the cooling liquid enters the buffer inner tube 33 through the water inlet 321, then enters the buffer space 34 through the water permeable holes 331, and finally flows into the impeller 4 through the other end of the shell, thereby realizing the cooling of the impeller 4.

[0065] It can be understood that, due to the arrangement of the water permeable holes 331 and the buffer space, the flow speed of the cooling liquid can be reduced, and the impact force of the cooling liquid on the impeller 4 can be reduced. Correspondingly, one end of the connecting piece is fixedly connected with the buffer inner tube 33, and the other end of the connecting piece is adapted to be connected with the adjusting assembly 12.

[0066] Specifically, the connecting piece 35 is a second threaded rod, one end of the second threaded rod is threadedly connected with one end of the buffer inner tube 33, and the length of the other end of the second threaded rod extending out of the shell is adjusted, so that the water inlet mechanism 3 can be suitable for impellers 4 of different types and sizes.

[0067] Further, referring to the drawings Figure 2 The embodiment further illustrates the adjusting assembly 12. The adjusting assembly 12 comprises an adjusting joint 121 and a first threaded rod 123, a threaded hole is arranged at one end of the adjusting joint 121, a protruding part 122 is arranged at the other end of the adjusting joint 121, and the protruding part 122 is adapted to be connected with the second threaded rod. Correspondingly, the protruding part 122 is matched with the central hole of the fan disc 41, when the impeller 4 is installed on the adjusting assembly 12, the protruding part 122 can be inserted into the central hole and connected with the second threaded rod, thereby realizing the connection between the water inlet mechanism 3 and the adjusting assembly 12.

[0068] In addition, the first threaded rod 123 is vertically installed and fixed in the overflow container 11, the threaded hole arranged at the end of the adjusting joint 121 away from the protruding part 122 can be threadedly connected with the first threaded rod 123, and the height of the water inlet mechanism 3 can be adjusted by rotating the adjusting joint 121. In addition, a mounting hole is also arranged in the protruding part 122, and an internal thread threadedly connected with the second threaded rod is arranged in the mounting hole, so that the protruding part 122 is threadedly connected with the second threaded rod, and at the same time, the end of the adjusting joint 121 provided with the protruding part 122 can be abutted against the fan disc 41, thereby improving the connection strength between the water inlet mechanism 3 and the adjusting assembly 12.

[0069] In use, the length of the second threaded rod protruding from the housing is adjusted according to the type of the impeller 4, and the end of the second threaded rod is inserted into the central hole and fixed by screwing with the protruding part 122. Accordingly, by adjusting the rotation of the adjusting joint 121 relative to the first threaded rod 123, the distance between the opening of the overflow container 11 and the impeller 4 is adjusted.

[0070] As a preferred, a nut 124 is further arranged below the adjusting joint 121, and the nut 124 is screwed with the first threaded rod 123. After the adjusting joint 121 is adjusted in place, the nut 124 is rotated to abut against the adjusting joint 121, so as to ensure the stability of the adjusting joint 121 and prevent the adjusting joint 121 from falling.

[0071] In addition, it should be noted that, in addition to being screwed with the first threaded rod 123 to adjust the height of the adjusting joint 121, the adjusting joint 121 of the adjusting assembly 12 can also be driven to move up and down by other structures, such as an electric transmission rod structure or a telescopic air cylinder structure, as long as the structure or device can achieve the function. Here, only for better illustrating the present application, it should not be construed as a limitation of the present application.

[0072] It can be understood that, in order to further improve the cooling effect of the cooling liquid on the impeller 4 to be welded, when the impeller is arranged on the adjusting assembly 12, the outlet 411 on the fan disc 41 is located below the opening of the overflow container 11, so that after the cooling liquid flows into the overflow container 11, the part of the fan disc 41 where the outlet 411 is arranged is located in the cooling liquid. Accordingly, the wheel cover 42 is located above the opening of the overflow container 11. It can be understood that the opening of the fan disc 41 is arranged on the side of the fan disc 41 and is formed by two adjacent blades on the fan disc 41. During welding, the wheel cover 42 located above the opening of the overflow container 11 is mainly welded, i.e., the wheel cover 42 is welded and fixed to the part of the fan disc 41 located above the opening.

[0073] In the embodiment, the cooling liquid can flow through the wheel cover 42 and the fan disc 41, and the lower part of the fan disc 41 is located in the cooling liquid in the overflow container 11, so as to significantly improve the cooling effect of the cooling liquid.

[0074] In one embodiment, referring to the drawings Figure 2The shell comprises an outer tube 31 and an upper cover 32, the upper cover 32 is fixed on one end of the outer tube 31, and a sealing element is arranged at the joint of the upper cover 32 and the outer tube 31 to improve the sealing performance of the joint. Correspondingly, a water inlet 321 is arranged on the upper cover 32, and a buffer inner tube 33 is arranged in the outer tube 31 and fixedly connected with the upper cover 32. In addition, the end of the outer tube 31 away from the upper cover 32 is adapted to communicate with the inlet 412 of the wheel cover 42.

[0075] Further, an exhaust port 36 is arranged on the water inlet mechanism 3 and can be opened and closed to exhaust the gas in the water inlet mechanism 3. Specifically, referring to the drawings Figure 1 and Figure 2 The exhaust port 36 is arranged on the upper cover 32, and preferably, a thread is arranged in the exhaust port 36 to be screwed with a nut to realize the openable and closable arrangement of the exhaust port 36.

[0076] In one embodiment, referring to the drawings Figure 1 This embodiment further describes the rotating assembly 2. The rotating assembly 2 comprises a support 21, a fixed disc 22 and a rotating disc 23, the support 21 is fixedly arranged on the liquid collecting container 5, the fixed disc 22 is arranged on the upper end surface of the support 21, and the rotating disc 23 is rotatably arranged on the side of the fixed disc 22 away from the support 21. Correspondingly, the overflow container 11 is arranged on the rotating disc 23 so that the overflow container 11 and the rotating disc 23 rotate relative to the fixed disc 22 and the support 21. Generally, the rotating disc 23 can be rotatably arranged on the side of the fixed disc 22 away from the support 21 through a rotating shaft.

[0077] The working principle is as follows: adjusting the vertical position of the impeller 4 to be welded, adjusting the vertical position of the impeller 4 to be welded through the adjusting assembly 12, so that the outlet 411 of the impeller 4 is below the horizontal plane where the opening of the overflow container 11 is located, but it is necessary to ensure that the wheel cover 42 is above the horizontal plane where the opening of the overflow container 11 is located. Then the impeller 4 to be welded is assembled with the water inlet mechanism 3, the special water inlet mechanism 3 is connected with the cooling liquid, the cooling liquid flows from the outlet 411 to be welded to the overflow container 11, after the overflow container 11 is filled with water, the exhaust port 36 is opened until the gas is exhausted, the rotating overflow container 11 and other rotatable parts are rotated, so that the welding area of the impeller to be welded faces the operator, after the overflow container 11 is fixed by the locking assembly 52, the welding can be carried out. Before the next welding seam is implemented, the rotating adjustment can be performed again to ensure that the welding area always faces the operator. During the whole welding process, the cooling liquid flows into the impeller 4 through the water inlet mechanism 3, then flows into the overflow container 11 from the impeller 4, then flows into the liquid collecting container 5, and finally is discharged outward through the drain pipe 51 of the liquid collecting container 5. After the welding is completed, the cooling liquid needs to be disconnected and the impeller needs to be disassembled after the welded seam is completely cooled.

[0078] It should be noted that the above embodiments can be freely combined as needed. The above are only the preferred embodiments of the application, and it should be pointed out that for those skilled in the art, without departing from the principles of the application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the application.

Claims

1. A cooling device for welding of an impeller, characterized in that The application relates to a cooling device for a turbine, which comprises: an overflow mechanism, which comprises an adjusting assembly and an overflow container, the adjusting assembly being arranged in the overflow container and used for carrying a fan disc of an impeller to be welded to adjust the distance between the impeller and an opening of the overflow container; a rotating assembly, the overflow mechanism being rotatably arranged on the rotating assembly to rotate the impeller; a water inlet mechanism, which is arranged on a cover of the impeller, is fixedly connected with the adjusting assembly, is communicated with an inlet of the cover, and is used for injecting cooling liquid into the impeller, and the overflow container is used for receiving the cooling liquid flowing out of the impeller.

2. A cooling device for welding of impellers according to claim 1, characterized in that The application further comprises a liquid collecting container, the rotating assembly is arranged in the liquid collecting container, and the overflow container is correspondingly arranged in the liquid collecting container; wherein the liquid collecting container is used for receiving the cooling liquid flowing out of the overflow container and discharging the cooling liquid.

3. A cooling device for welding of impellers according to claim 2, characterized in that The water inlet mechanism comprises: a shell, one end of the shell is provided with a water inlet, and the other end of the shell is adapted to be communicated with the inlet of the cover; a buffer inner tube, which is fixedly installed in the shell to form a buffer space between the buffer inner tube and the shell, is communicated with the water inlet, and is provided with a plurality of water permeable holes which are communicated with the buffer space; a connecting piece, one end of the connecting piece is fixedly connected with the buffer inner tube, and the other end of the connecting piece is adapted to be connected with the adjusting assembly.

4. A cooling device for welding of impellers according to claim 3, characterized in that The adjusting assembly comprises: an adjusting joint, one end of the adjusting joint is provided with a threaded hole, the other end of the adjusting joint is provided with a protruding part which is adapted to be connected with the connecting piece, the protruding part is adapted to be inserted into a central hole of the fan disc, and the end of the adjusting joint away from the threaded hole is adapted to abut against the fan disc; a first threaded rod, which is arranged in the overflow container and is adapted to be threadedly connected with the threaded hole.

5. A cooling device for welding of impellers according to claim 4, characterized in that The connecting piece is a second threaded rod, one end of the second threaded rod is threadedly connected with the buffer inner tube; the protruding part is provided with a mounting hole, and the other end of the second threaded rod is adapted to be clamped with the mounting hole through the central hole of the fan disc.

6. A cooling device for welding of impellers according to any of claims 2-5, characterized in that The liquid collecting container is provided with a locking assembly, the locking assembly is adapted to be clamped with the overflow container to fix the overflow container on the rotating assembly.

7. A cooling device for welding of impellers according to claim 6, characterized in that The rotating assembly comprises: a support, which is arranged in the liquid collecting container; a fixing disc, which is arranged on the upper end face of the support; a rotating disc, which is rotatably arranged on the side of the fixing disc away from the support, and the overflow container is arranged on the rotating disc.

8. The cooling device for welding of impellers according to claim 3, characterized in that, The shell comprises an outer tube and an upper cover body, the upper cover body is hermetically connected with one end of the outer tube through a sealing piece, the water inlet is arranged on the upper cover body, the buffer inner tube is arranged in the outer tube and is fixedly connected with the upper cover body; one end of the outer tube away from the upper cover body is adapted to be communicated with the inlet of the cover.

9. A cooling device for welding of impellers according to claim 8, characterized in that When the impeller is arranged on the adjusting assembly, the outlet on the fan disc is below the opening of the overflow container, and the wheel cover is above the opening of the overflow container.

10. A cooling device for welding of impellers according to claim 9, characterized in that An exhaust port is arranged on the water inlet mechanism.

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