Impeller pin riveting device

Abstract

An impeller pin riveting device comprises a base, a side column, a lifting mechanism and a support are fixedly installed on the base at intervals, the lifting mechanism is located between the side column and the support, the lifting mechanism, the side column and the support are located on the same straight line, one end of a swing arm is installed at the top end of the side column through a bearing assembly, and a groove is formed in the edge of the other end of the swing arm. A bolt structure arranged at the top end of the support is matched with the groove and can fix the swing arm through a locking nut, a sliding block capable of freely sliding is arranged on the swing arm in a sleeved mode, an upper tip is fixedly connected to the lower portion of the sliding block, and a lower tip is connected to the lifting end of the lifting mechanism. A steering platform used for placing an impeller to be machined is further arranged in the middle of the support. By means of the structure, the problems that in the background technology, pin riveting operation is high in labor intensity, poor in riveting strength and low in production efficiency are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam turbine component processing equipment, in particular to an impeller riveting pin device. Background Art

[0002] In the prior art, the impeller, as an important component of the steam turbine, plays a vital role in the safety and performance of the steam turbine. In the assembly of the impeller blades, the blades need to be fixed with pins after installation, because after the blades are installed, the blade roots are assembled into the impeller root grooves, and finally the pins need to be fixed by riveting. Traditional impeller rivet pins are hammered by tooling or rolled on a lathe, which has high labor intensity, poor riveting strength, and low production efficiency. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide an impeller riveting pin device.

[0004] The technical solution adopted by the utility model is: an impeller riveting pin device, comprising a base, on which are fixedly mounted side columns, a lifting mechanism and a support arranged at intervals, the lifting mechanism being located between the side columns and the support and the three being on the same straight line, one end of a swing arm being mounted on the top end of the side column through a bearing assembly, a groove being provided at the edge of the other end, a bolt structure arranged at the top end of the support being matched with the groove and being able to fix the swing arm through a locking nut, a freely slidable slider being sleeved on the swing arm, an upper top being fixedly connected below the slider, a lower top being connected to the lifting end of the lifting mechanism, and a steering platform for placing an impeller to be processed is also provided in the middle of the support.

[0005] As a preferred solution, the steering platform is installed in the middle of the support through a bearing assembly and can rotate freely along the axis of the support.

[0006] As a preferred solution, the support is also provided with a height adjustment unit for adjusting the height of the steering platform.

[0007] As a preferred solution, the sliding block is composed of an upper sliding plate, a lower sliding plate, and a plurality of groups of bolts connected between the upper sliding plate and the lower sliding plate.

[0008] As a preferred solution, the lifting mechanism is any one of a hydraulic cylinder, a gas cylinder or an electric push rod.

[0009] The beneficial effects of the utility model are:

[0010] Based on the defects of the prior art, the present invention provides an impeller riveting pin device. By optimizing the structural design, the side column, the lifting mechanism and the support are installed in a straight line on the base. A turning platform for placing the impeller to be processed is also provided in the middle of the support. The top end of the side column is rotatably matched with a swing arm, and a freely slidable slider is sleeved on the swing arm. An upper top is fixedly connected to the bottom of the slider, and a lower top is connected to the lifting end of the lifting mechanism. At the same time, the end of the swing arm away from the side column can be used to fix the swing arm through a bolt structure at the top of the support. By setting the above structure, the problems of high labor intensity of riveting pin operation, poor riveting strength and low production efficiency mentioned in the background technology can be effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is a top view of the utility model;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure numerals: 1. base, 2. lifting mechanism, 3. side column, 4. swing arm, 5. slider, 6. support, 61. bolt structure, 62. steering platform, 7. upper top, 8. lower top, 9. impeller. DETAILED DESCRIPTION

[0016] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0017] It should be noted that: unless otherwise defined, the technical terms or scientific terms used in this article should be understood by people with ordinary skills in the field to which the utility model belongs. The words "one", "an" or "the" and the like used in the utility model patent application specification and claims do not express quantitative restrictions, but indicate the existence of at least one; "include" or "includes" and the like indicate that the elements or objects appearing before "include" or "includes" include the elements or objects listed after "includes" or "includes" and their equivalents, but do not exclude other elements or objects with the same function.

[0018] Embodiment 1

[0019] In order to more clearly describe the specific structure and riveting process of the impeller riveting device, Figure 1-3 Describe this embodiment:

[0020] As shown in the figure, an impeller riveting device is mainly composed of a base 1, a lifting mechanism 2, a side column 3, a swing arm 4, a slider 5 and a support 6, wherein the side column 3, the lifting mechanism 2 and the support 6 are respectively fixedly installed on the base 1 and are distributed at intervals, the lifting mechanism 2 is located between the side column 3 and the support 6 and the three are distributed on the same straight line, one end of the swing arm 4 is rotatably installed on the top of the side column 3 through a bearing assembly, and a groove is provided at the edge of the other end, and a bolt structure 61 arranged on the top of the support 6 cooperates with the groove and can fix the swing arm 4 through a locking nut, and a slider 5 is sleeved on the swing arm 4, and the slider 5 can slide freely along the length direction of the swing arm 4, and an upper top 7 is fixedly connected to the bottom of the slider 5, and a lower top 8 is connected to the lifting end of the lifting mechanism 2, and a freely rotatable turning platform 62 is also provided in the middle of the support 6, and the turning platform 62 is used to place the impeller 9 to be processed;

[0021] In this embodiment, the steering platform 62 is installed in the middle of the support 6 through a bearing assembly and can rotate freely along the axis of the support 6. The support 6 is also provided with a height adjustment unit for adjusting the height of the steering platform 62. The impeller 9 can be placed on the steering platform 62 along the upper end of the support 6 through its center hole, and the height and rotation angle of the impeller can be adjusted through the steering platform.

[0022] In this embodiment, Figure 3 As shown, the slider 5 is composed of an upper sliding plate, a lower sliding plate and four groups of bolts connected between the upper sliding plate and the lower sliding plate. The upper sliding plate and the lower sliding plate are respectively clamped on the upper and lower sides of the swing arm 4 and connected by four groups of bolts, so that the slider 5 can be integrally mounted on the swing arm 4 and can slide freely along the length direction of the swing arm 4.

[0023] In this embodiment, the lifting mechanism 2 adopts a hydraulic cylinder. Of course, those skilled in the art can also adjust it to a gas cylinder or an electric push rod, and the technical effects achieved are exactly the same.

[0024] In this embodiment, the locking nut can be loosened to remove the swing arm 4, and the impeller can be placed on the steering platform with adjustable height of the support 6. The locking nut of the swing arm 4 is closed again, and the position of the top point 7 on the upper side is aligned with the impeller pin hole by adjusting the slider 5, and the oil cylinder 2 is controlled to open for operation.

[0025] The working process of the impeller riveting device is as follows:

[0026] First, loosen the locking nut to remove the swing arm 4, place the impeller on the steering platform with adjustable height on the support 6, and reclose the locking nut to lock the position of the swing arm 4;

[0027] Then, adjust the position of the slider 5 so that the upper top corresponds to the lower top, and then rotate the impeller through the steering platform so that one of its pin holes corresponds to the upper top, and adjust the height of the impeller so that it contacts the upper top;

[0028] Finally, control cylinder 2 to open and drive the lower center to move upward to operate;

[0029] In this solution, the impeller can be quickly clamped by means of a movable swing arm 4, and the position of the slider 5 can be adjusted in real time by means of the sliding cooperation structure between the swing arm 4 and the slider 5, thereby improving the applicability of the impeller riveting device, improving the operation accuracy and product quality. After the adjustment is completed, the riveting operation is performed by means of a hydraulic cylinder instead of manual pressure riveting, thereby improving operation efficiency, saving labor, increasing product strength, and improving product quality and safety.

[0030] Embodiment 2

[0031] It should be noted that: the main structure of Example 2 is the same as that of Example 1, and the difference between the two is that the lifting mechanism 2 is movably installed on the guide rail through a sliding block, and the extension direction of the guide rail is on the connecting line of the side column 3 and the support 6. At the same time, a locking mechanism that can limit the position of the lifting mechanism 2 is also provided. When the position of the lifting mechanism needs to be moved, the locking mechanism is first released, and the lifting mechanism 2 is adjusted to the specified position along the guide rail direction, and then the position of the lifting mechanism is locked by the locking mechanism. The above structure can better adapt to the processing of impellers of different models and sizes.

[0032] The parts not described in detail in the above embodiments are prior art.

[0033] It should be noted that although the utility model is described through the above embodiments, the utility model can also have other multiple embodiments. Without departing from the spirit and scope of the utility model, it is obvious that those skilled in the art can make various corresponding changes and deformations to the utility model, but these changes and deformations should all fall within the scope of protection of the attached claims of the utility model and their equivalents.

Claims

1. An impeller riveting device, characterized in that: It includes a base, on which are fixedly installed side columns, a lifting mechanism and a support arranged at intervals. The lifting mechanism is located between the side columns and the support and the three are in the same straight line. One end of the swing arm is installed on the top of the side column through a bearing assembly, and a groove is provided at the edge of the other end. A bolt structure arranged on the top of the support cooperates with the groove and can fix the swing arm through a locking nut. A freely slidable slider is sleeved on the swing arm, an upper top is fixedly connected below the slider, a lower top is connected to the lifting end of the lifting mechanism, and a steering platform for placing an impeller to be processed is also provided in the middle of the support.

2. An impeller riveting device according to claim 1, characterized in that: The steering platform is installed in the middle of the support through a bearing assembly and can rotate freely along the axis of the support.

3. The impeller riveting device according to claim 1, characterized in that: The support is also provided with a height adjustment unit for adjusting the height of the steering platform.

4. The impeller riveting device according to claim 1, characterized in that: The sliding block is composed of an upper sliding plate, a lower sliding plate and a plurality of groups of bolts connected between the upper sliding plate and the lower sliding plate.

5. An impeller riveting device according to any one of claims 1 to 4, characterized in that: The lifting mechanism is any one of a hydraulic cylinder, a gas cylinder or an electric push rod.

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