Horizontal rotating device for spraying asymmetric seat ring volute

Abstract

The utility model provides a horizontal rotating device for spraying an asymmetric seat ring volute, which is characterized in that the horizontal rotating device comprises a base, a driving mechanism and a slewing mechanism, the base is a main body bearing structure of the whole horizontal rotating device and provides mounting positions for the driving mechanism and the slewing mechanism; the driving mechanism is composed of a driving gear, a power gear motor and a controller and is mainly used for providing rotation driving force for the horizontal rotation device and achieving adjustment and control over the rotation speed. The slewing mechanism is composed of a slewing bearing, a workpiece installation platform and an adjustable extension arm. According to the horizontal rotating device, the bearing problem of the gravity and the rotating eccentric force of a workpiece when the asymmetric seat ring volute rotates horizontally is effectively solved, and the wide adaptability of the horizontal rotating device to workpieces with different specifications and sizes is ensured by the adjustable extension arm. And meanwhile, due to the hollow design, an operation platform is provided for spraying operation, and convenience and safety of the spraying operation are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying auxiliary devices, and in particular to a horizontal rotating device for spraying an asymmetric seat ring volute. Background Art

[0002] Since electricity has the characteristics of being generated, supplied and used at the same time, and the load in the power grid has peaks and valleys over time, the power grid has insufficient power supply capacity during peak loads and excessive power supply capacity during valley loads. At present, the construction of pumped storage power stations can effectively balance the load of the power grid and improve the quality of power supply. Pumped storage power stations use electricity during low load periods to pump water to the upper reservoir, and release water to the lower reservoir to generate electricity during peak load periods. They are also called storage hydropower stations. The main equipment of a pumped storage power station is a large pumping pump, and the seat ring volute is a key component of the large pumping pump. In order to increase the service life of the seat ring volute against water erosion and cavitation, it is necessary to spray a protective coating on the flow surface of the seat ring volute using a thermal spraying method.

[0003] Because the seat ring volute is an asymmetric structure and the flow surface is composed of multiple curved surfaces, the seat ring volute needs to be rotated horizontally during thermal spraying to ensure the spraying quality, so as to cooperate with the manipulator to achieve high-quality spraying. Due to the large size and high deadweight of the seat ring volute, the eccentric force during horizontal rotation is very large. The general horizontal rotation mechanism cannot overcome the eccentric force to ensure safety. In addition, the spraying area of ​​the seat ring volute is located on the inner circular surface. The general horizontal rotation mechanism has no working surface for equipment and personnel to operate at the center of the rotation circle, which cannot meet the spraying requirements. If a bracket is used for overhead operation, the overhead height is high, the operation convenience is poor, and the safety risk during the operation is also high. Summary of the invention

[0004] According to the above-mentioned common horizontal rotating mechanism during thermal spraying cannot overcome the eccentric force to ensure safety, and the common horizontal rotating mechanism has no working surface for equipment and personnel to operate at the center of the rotation circle, and cannot meet the technical problems of spraying requirements, a horizontal rotating device for spraying asymmetric seat ring volute is provided. The utility model overcomes the eccentric force generated when the asymmetric structure rotates by using a slewing bearing and a supporting wing plate to ensure safe operation, and the hollow design of the rotating device can provide a working surface at the center for the spraying operation of the seat ring volute, which facilitates the spraying operation and avoids the inconvenience and risk of overhead operation.

[0005] The technical means adopted by the utility model are as follows:

[0006] A horizontal rotating device for spraying asymmetric seat ring volute, comprising: a base, a driving mechanism, and a rotating mechanism;

[0007] The base is composed of a base body, a supporting wing plate, and a drive mechanism mounting bracket. The base is the main load-bearing structure of the entire horizontal rotating device and provides a mounting position for the drive mechanism and the slewing mechanism.

[0008] The driving mechanism is composed of a driving gear, a power reduction motor, and a controller. Its main function is to provide a rotational driving force for the horizontal rotating device and to adjust and control the rotational speed. It is installed on the base.

[0009] The slewing mechanism is composed of a slewing bearing, a workpiece mounting platform, and an adjustable extension arm, and is mounted on the base.

[0010] Furthermore, the base body is composed of an upper edge plate, a middle column and a lower edge plate, wherein the middle column is a hollow cylinder formed by rolling and welding a steel plate of a certain thickness, and the hollow part can be used to place a spraying manipulator and a personnel operation platform, and the upper edge plate and the lower edge plate are cut from a steel plate, and then the upper edge plate, the lower edge plate and the middle column are welded into one;

[0011] The supporting wing plates are cut from steel plates, with eight pieces in total, which are evenly welded on the base body, and their supporting surfaces are flush with the lower edge plate surface;

[0012] The drive mechanism mounting support is welded from steel plates and then welded to a suitable position of the base body. Its main function is to provide a mounting surface for the power reduction motor. The mounting surface and the upper edge plate surface are machined to ensure flatness.

[0013] Furthermore, the power reduction motor adopts a three-in-one reduction motor, which is installed on the drive mechanism mounting bracket by bolts, and the drive gear is installed on its output shaft. The start, stop and speed adjustment control of the motor are realized by the controller.

[0014] Furthermore, the slewing bearing is a slewing support bearing with an outer gear ring, and its main function is to bear and transmit the gravity of the workpiece and the eccentric force when the asymmetric workpiece rotates. Its inner ring is connected to the upper plate surface of the base body by bolts, and the outer gear ring is connected to the workpiece mounting platform by bolts. The tooth surface of the outer gear ring is meshed and assembled with the tooth surface of the driving gear in the driving mechanism, and the rotation of the outer gear ring and the workpiece mounting platform connected thereto is realized by the rotation drive of the driving gear.

[0015] Furthermore, the workpiece mounting platform is formed by welding steel plates, and eight T-shaped grooves are evenly and symmetrically processed on its upper surface along the center direction of the circle, and through holes for workpiece engagement are distributed along the circumference in a certain pattern.

[0016] Furthermore, the adjustable extension arm can be welded with various types of channel steel according to the size of the workpiece, and a series of engagement through holes can be processed along the length direction. It is connected to the workpiece mounting platform by bolts and T-nuts in the T-slot on the workpiece mounting platform. Its position can be adjusted by sliding the T-nut in the T-slot or changing the bolt engagement hole to meet the needs of workpieces of different sizes.

[0017] Due to the adoption of the above technical solution, compared with the prior art, the utility model has the following advantages:

[0018] 1. The utility model provides a horizontal rotating device for spraying asymmetric seat ring and volute, which effectively solves the bearing problem of workpiece gravity and rotational eccentric force when asymmetric circular workpieces, especially asymmetric seat ring and volute, rotate horizontally, and the adjustable extension arm ensures the wide adaptability of the horizontal rotating device to workpieces of different specifications and sizes.

[0019] 2. The utility model provides a horizontal rotating device for spraying asymmetric seat ring volutes. The hollow design provides an operating platform for the spraying operation, ensuring the convenience and safety of the spraying operation. The horizontal rotating device of the present invention realizes safe and efficient horizontal rotation of the asymmetric seat ring volute, and cooperates with the manipulator to complete the spraying operation with high quality.

[0020] Based on the above reasons, the utility model can be widely promoted in the technical field of spraying auxiliary devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a schematic diagram of the overall structure of a horizontal rotating device for spraying asymmetric seat ring volute according to the utility model;

[0023] Figure 2 It is a schematic diagram of a base in a horizontal rotating device for spraying asymmetric seat ring volute described in the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of a driving mechanism in a horizontal rotating device for spraying an asymmetric seat ring volute described in the utility model;

[0025] Figure 4It is a schematic diagram of the structure of a rotary mechanism in a horizontal rotary device for spraying an asymmetric seat ring volute described in the utility model.

[0026] In the figure: 1. base; 2. driving mechanism; 3. slewing mechanism; 101. base body; 102. supporting wing plate; 103. driving mechanism mounting support; 201. driving gear; 202. power reduction motor; 203. controller; 301. slewing bearing; 302. workpiece mounting platform; 303. adjustable extension arm. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0031] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0034] Example

[0035] like Figures 1 to 4 As shown, the utility model provides a horizontal rotating device for spraying asymmetric seat ring volute, comprising: a base, a driving mechanism, and a rotating mechanism;

[0036] The horizontal rotating device is placed at a suitable position in the workshop, and the workpiece mounting platform 302 is kept horizontal by adjusting the pad. If necessary, the lower edge plate of the base body 101 can be fixed with anchor bolts to ensure the stability of the horizontal rotating device. The manipulator and the personnel operating platform are installed in the hollow position of the middle column of the base body 101. The spray gun, pipelines, and manipulator control and power cables for thermal spraying are inserted through the reserved openings on the middle column and fixed to the manipulator. The adjustable extension arm 303 is adjusted and installed to a suitable position by sliding the T-nut in the T-slot to fix the asymmetric seat ring worm. The shell is placed on the workpiece mounting platform 302 of the horizontal rotating device and fixed with the mounting platform 302 and the adjustable extension arm 303 by bolts. The operator enters the personnel operating platform through the mobile ladder and then moves the ladder away. The operation controller 203 starts the power reduction motor 202, and the driving gear 201 installed on the output shaft of the reduction motor 202 drives the outer gear ring of the slewing bearing 301 to rotate, thereby driving the workpiece mounting platform 302 and the asymmetric seat ring volute workpiece placed thereon to rotate, and the speed of the horizontal rotating device is adjusted to meet the spraying requirements through the controller 203.

[0037] During this process, the weight and rotational eccentric force of the asymmetric seat ring volute are first transmitted to the slewing bearing 301 through the mounting platform 302 and the adjustable extension arm 303, and then to the base 1, and finally transmitted to the ground through the base 1. The deflection torque generated after the rotational eccentric force is transmitted to the base 1 through the slewing bearing 301 is overcome by the support between the base body 101 and the support wing plates 102 uniformly welded thereon and the ground, thereby ensuring the stability of the rotation process. At the same time, the operator can perform thermal spraying operations on the personnel operating platform at the hollow position of the middle column of the base body 101, thereby ensuring the convenience and safety of the entire spraying process.

[0038] After stopping for inspection or finishing spraying, the operating controller 203 gradually stops the power reduction motor 202, and then stops the rotation of the workpiece, and the operator enters and exits the operating platform through the mobile ladder.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A horizontal rotating device for spraying asymmetric seat ring volute, characterized in that: include: Base, driving mechanism, slewing mechanism; The base is composed of a base body, a supporting wing plate, and a drive mechanism mounting bracket. The base is the main load-bearing structure of the entire horizontal rotating device and provides a mounting position for the drive mechanism and the slewing mechanism. The driving mechanism is composed of a driving gear, a power reduction motor, and a controller. Its main function is to provide a rotational driving force for the horizontal rotating device and to adjust and control the rotational speed. It is installed on the base. The slewing mechanism is composed of a slewing bearing, a workpiece mounting platform, and an adjustable extension arm, and is mounted on the base.

2. A horizontal rotating device for spraying asymmetric seat ring volute according to claim 1, characterized in that: The base body is composed of an upper plate, a middle column and a lower plate, wherein the middle column is a hollow cylinder, which is formed by rolling and welding a steel plate of a certain thickness, and the hollow part can be used to place a spraying manipulator and a personnel operation platform, and the upper plate and the lower plate are cut from steel plates, and then the upper plate, the lower plate and the middle column are welded into one body; The supporting wing plates are cut from steel plates, and there are eight of them in total, which are evenly welded on the base body, and their supporting surfaces are flush with the lower edge plate surface; The drive mechanism mounting support is welded from steel plates and then welded to a suitable position of the base body. Its main function is to provide a mounting surface for the power reduction motor. The mounting surface and the upper edge plate surface are machined to ensure flatness.

3. The horizontal rotating device for spraying asymmetric seat ring volute according to claim 1, characterized in that: The power reduction motor adopts a three-in-one reduction motor, which is installed on the drive mechanism mounting support by bolts, and the drive gear is installed on its output shaft. The start, stop and speed adjustment control of the motor are realized through the controller.

4. The horizontal rotating device for spraying asymmetric seat ring volute according to claim 1, characterized in that: The slewing bearing is a slewing support bearing with an outer gear ring, and its main function is to carry and transmit the gravity of the workpiece and the eccentric force when the asymmetric workpiece rotates. Its inner ring is connected to the upper edge plate surface of the base body by bolts, and the outer gear ring is connected to the workpiece mounting platform by bolts. The tooth surface of the outer gear ring is meshed and assembled with the tooth surface of the driving gear in the driving mechanism, and the rotation of the outer gear ring and the workpiece mounting platform connected thereto is realized by the rotation drive of the driving gear.

5. The horizontal rotating device for spraying asymmetric seat ring volute according to claim 4, characterized in that: The workpiece mounting platform is made of welded steel plates, and eight T-shaped grooves are evenly and symmetrically processed on its upper surface along the center direction of the circle, and through holes for workpiece engagement are distributed and processed along the circumference in a certain regular pattern.

6. The horizontal rotating device for spraying asymmetric seat ring volute according to claim 1, characterized in that: The adjustable extension arm can be welded with various types of channel steel according to the size of the workpiece, and a series of engagement through holes can be processed along the length direction. It is connected to the workpiece mounting platform by bolts and T-nuts in the T-slot on the workpiece mounting platform. Its position can be adjusted by sliding the T-nut in the T-slot or changing the bolt engagement hole to meet the needs of workpieces of different sizes.

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