Bearing press-fitting device for centrifugal fan blade machining

Abstract

The utility model discloses a bearing press-fitting device for machining a centrifugal fan blade, and relates to the technical field of fans. The machining device comprises a machining table. Mounting blocks are fixed to the side faces of the machining table. An L-shaped fixing shaft is fixed on the surface of the mounting block; a machining plate is fixed to one end of the L-shaped fixing shaft. Circular grooves are formed in the bottom surface of the processing plate; spiral grooves are formed in the inner walls of the annular grooves; the spiral grooves are connected end to end to form a closed-loop track; an adjusting ball is slidably arranged on the inner wall of the spiral groove; adjusting shafts are fixed on the peripheral side surfaces of the adjusting balls; the adjusting shaft is in sliding fit with the inner wall of the annular groove; fixing assemblies are arranged at the bottom ends of the adjusting shafts; a plurality of blades are arranged on the surface of the machining table. According to the utility model, the spiral groove of which the path is changed spirally is arranged, so that in the rotating process of the driving turntable, the connecting shaft and the driven turntable, the spiral groove drives the adjusting ball to slowly descend to the lowest position from the highest position in the initial state, and then the transmission shaft is driven to slowly press into the mounting hole, thereby realizing automatic mounting of a machine.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and particularly relates to a press-fitting bearing device for centrifugal fan blade processing. Background Technique

[0002] A centrifugal fan blade is a device that generates centrifugal force through rotation, thereby causing gas to flow. Its working principle is to rely on the action of rotational force and centrifugal force to suck gas from the center, accelerate it, and then discharge it through the outlet. The centrifugal fan blade has an annular shape, with a hollow part as the inlet and an edge part as the outlet. When the fan rotates, the frictional force between the blade and the air generates acceleration, and the gas is pushed outwards by the centrifugal force.

[0003] Currently, when assembling the impeller blades of a centrifugal fan blade, the manual assembly method is usually adopted. Workers align the drive shaft with the preset mounting holes on the blade, and then use a hammer to knock the drive shaft into the mounting holes on the blade. However, this method requires a large amount of manpower, and the parts will also be worn to a certain extent during the hammer knocking process.

[0004] Therefore, we provide a press-fitting bearing device for centrifugal fan blade processing to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a press-fitting bearing device for centrifugal fan blade processing. By setting a spiral groove whose path is changed in a spiral manner, during the rotation of the driving turntable, the connecting shaft and the driven turntable, the spiral groove drives the adjusting ball to slowly descend from the highest position in the initial state to the lowest position, and then the drive shaft is driven to slowly press into the mounting hole on the upper plate, realizing automatic machine installation and not easily damaging the parts. It solves the problems that the existing method of manually using a hammer to knock the drive shaft into the mounting hole on the blade requires a large amount of manpower, and the parts will also be worn to a certain extent during the hammer knocking process.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a press-fitting bearing device for centrifugal fan blade processing, including a processing table; an installation block is fixed on the side of the processing table; an L-shaped fixed shaft is fixed on the surface of the installation block; a processing plate is fixed at one end of the L-shaped fixed shaft; a circular ring groove is opened on the bottom surface of the processing plate; a spiral groove is opened on the inner wall of the circular ring groove; the spiral groove is connected end to end to form a closed-loop track; an adjusting ball is slidably arranged on the inner wall of the spiral groove; an adjusting shaft is fixed on the circumferential side of the adjusting ball; the adjusting shaft is slidably matched with the inner wall of the circular ring groove; a fixing component is arranged at the bottom end of the adjusting shaft; several fan blades are arranged on the surface of the processing table.

[0008] The present utility model is further configured as follows: a driving turntable is rotatably arranged on the surface of the processing table; a connecting shaft coaxial with the driving turntable is fixed on the surface of the driving turntable; a driven turntable is fixed on the surface of the connecting shaft.

[0009] The present utility model is further configured as follows: a plurality of placement grooves are evenly formed in a circumferential array on the surface of the driving turntable; a plug-in plate coaxial with the placement groove is fixed on the inner bottom surface of the placement groove; a limiting shaft is fixed at a position away from the axis on the inner bottom surface of the placement groove.

[0010] The present utility model is further configured as follows: the wind blades are placed in the placement grooves; the wind blades include an upper disc, a lower disc, and a plurality of impellers arranged between the upper disc and the lower disc; a plug-in groove inserted and matched with the plug-in plate and a limiting groove inserted and matched with the limiting shaft are formed through the bottom surface of the lower disc.

[0011] The present utility model is further configured as follows: a plurality of sliding grooves are evenly formed through the surface of the driven turntable in a circumferential array; the number of the sliding grooves is the same as that of the placement grooves; the fixing component includes a sliding plate slidably arranged on the inner wall of the sliding groove; the surface of the sliding plate is fixedly connected with an adjusting shaft, and an installation frame is fixed on the bottom surface of the sliding plate; an adsorption groove is formed on the bottom surface of the installation frame.

[0012] The present utility model is further configured as follows: a negative pressure adsorbing member is arranged inside the installation frame; the negative pressure adsorbing member includes an air pump fixed inside the installation frame; an adsorption pipe is fixedly penetrated through the inner wall of the adsorption groove; the air suction end of the air pump is fixedly connected with the adsorption pipe.

[0013] The present utility model is further configured as follows: an installation shaft is fixed on the surface of the upper disc; an installation hole is formed at the top end of the installation shaft; a transmission shaft is arranged on the inner wall of the adsorption groove; the bottom end of the transmission shaft is inserted and matched with the installation hole.

[0014] The present utility model is further configured as follows: an installation groove is formed on the surface of the processing table; a servo motor is fixed on the inner bottom surface of the installation groove; the output end of the servo motor is fixedly connected with the driving turntable.

[0015] The present utility model has the following beneficial effects:

[0016] By arranging the spiral groove with a spiral-shaped changing path, during the rotation of the driving turntable, the connecting shaft and the driven turntable, the spiral groove drives the adjusting ball to slowly descend from the highest position in the initial state to the lowest position, and then the transmission shaft is driven to be slowly pressed into the installation hole on the upper disc, realizing automatic installation of the machine and not easily damaging parts.

[0017] A plurality of groups of the placement grooves and the fixing components of the present utility model are arranged in one-to-one correspondence. During the rotation of the driving turntable, the driving turntable can drive a plurality of groups of fixing components to install the transmission shaft in sequence, shortening the working time and improving the working efficiency.

[0018] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of a press-fitting bearing device for processing a centrifugal fan blade.

[0021] Figure 2 It is a schematic structural diagram of the processing table of the present utility model.

[0022] Figure 3 For the present utility model Figure 2 Enlarged view of area A.

[0023] Figure 4 It is an exploded schematic diagram of some components of the present utility model.

[0024] Figure 5 It is a schematic structural diagram of the fan blade of the present utility model.

[0025] Figure 6 It is a schematic structural diagram of the fixing component of the present utility model.

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 1 - Processing table, 2 - Installation block, 3 - L-shaped fixing shaft, 4 - Processing plate, 5 - Circular ring groove, 6 - Spiral groove, 7 - Adjusting ball, 8 - Adjusting shaft, 9 - Fixing component, 10 - Fan blade, 11 - Driving turntable, 12 - Connecting shaft, 13 - Driven turntable, 14 - Placing groove, 15 - Insertion plate, 16 - Limiting shaft, 17 - Upper plate, 18 - Lower plate, 19 - Impeller, 20 - Insertion slot, 21 - Limiting slot, 22 - Sliding groove, 23 - Sliding plate, 24 - Installation frame, 25 - Adsorption groove, 26 - Negative pressure adsorbing member, 27 - Air pump, 28 - Adsorption pipe, 29 - Installation hole, 30 - Transmission shaft, 31 - Servo motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the protection scope of the present utility model.

[0029] Specific embodiment one, please refer to Figures 1-6 , the present utility model is a press-fitting bearing device for centrifugal fan blade processing, including a processing table 1; an installation block 2 is fixed on the side of the processing table 1; an L-shaped fixed shaft 3 is fixed on the surface of the installation block 2; one end of the L-shaped fixed shaft 3 is fixed with a processing plate 4; a circular ring groove 5 is opened on the bottom surface of the processing plate 4; a spiral groove 6 is opened on the inner wall of the circular ring groove 5; the spiral groove 6 is connected end to end to form a closed-loop track; an adjusting ball 7 is slidably arranged on the inner wall of the spiral groove 6; an adjusting shaft 8 is fixed on the circumferential side surface of the adjusting ball 7; the adjusting shaft 8 is slidably matched with the inner wall of the circular ring groove 5; a fixing component 9 is arranged at the bottom end of the adjusting shaft 8; a plurality of fan blades 10 are arranged on the surface of the processing table 1.

[0030] Specifically, a driving turntable 11 is rotatably arranged on the surface of the processing table 1; a connecting shaft 12 coaxial with the driving turntable 11 is fixed on the surface of the driving turntable 11; a driven turntable 13 is fixed on the surface of the connecting shaft 12.

[0031] Furthermore, a plurality of placing grooves 14 are evenly opened on the surface of the driving turntable 11 in a circumferential array; a plugging board 15 coaxial with the placing groove 14 is fixed on the inner bottom surface of the placing groove 14; a limiting shaft 16 is fixed on the inner bottom surface of the placing groove 14 away from its axis.

[0032] Furthermore, the fan blade 10 is placed in the placing groove 14; the fan blade 10 includes an upper disk 17, a lower disk 18, and a plurality of impellers 19 arranged between the upper disk 17 and the lower disk 18; a plugging groove 20 inserted and matched with the plugging board 15 and a limiting groove 21 inserted and matched with the limiting shaft 16 are opened through the bottom surface of the lower disk 18.

[0033] Furthermore, a mounting shaft is fixed on the surface of the upper disk 17; a mounting hole 29 is opened at the top end of the mounting shaft; a transmission shaft 30 is arranged on the inner wall of the adsorption groove 25; the bottom end of the transmission shaft 30 is inserted and matched with the mounting hole 29.

[0034] Furthermore, an installation groove is opened on the surface of the processing table 1; a servo motor 31 is fixed on the inner bottom surface of the installation groove; the output end of the servo motor 31 is fixedly connected with the driving turntable 11.

[0035] The operation process of this embodiment is as follows: First, place the wind blade 10 in the placement groove 14 so that the plug-in board 15 is in plug-in fit with the plug-in groove 20 of the lower disk 18 and the limit shaft 16 is in plug-in fit with the limit groove 21. Then, fix the transmission shaft 30 through the fixing component so that the transmission shaft 30 is aligned with the mounting hole 29 on the upper disk 17.

[0036] Turn on the servo motor 31 to drive the active turntable 11 to rotate, and then drive the connecting shaft 12 and the driven turntable 13 to rotate. During the rotation of the active turntable 11, it drives each wind blade 10 to rotate. During the rotation of the driven turntable 13, it drives the fixing component 9 to rotate.

[0037] During the rotation of the fixing component 9, it drives the adjusting ball 7 and the adjusting shaft 8 to rotate. The adjusting ball 7 slides along the circular ring groove 5 and slides in the spiral groove 6. Since the path of the spiral groove 6 changes in a spiral manner, during the process of the adjusting ball 7 and the adjusting shaft 8 rotating one circle, the position slowly drops from the highest position in the initial state to the lowest position, and then slowly rises back to the original highest position. Therefore, the adjusting shaft 8 drives the fixing component 9 to slowly move downward, and then drives the fixing component 9 to slowly press the transmission shaft 30 into the mounting hole 29 on the upper disk 17. At this time, the installation of the transmission shaft 30 is completed. Then, turn off the servo motor 31 to stop the rotation of the active turntable 11, remove the connected fan 10 and the transmission shaft 30 together, and then turn on the servo motor 31 to continue rotating the active turntable 11 to make the adjusting ball 7 return to the original highest position for the installation of another group of fan 10 and transmission shaft 30.

[0038] In this embodiment, by setting the spiral groove 6 whose path changes in a spiral manner, during the rotation of the active turntable 11, the connecting shaft 12 and the driven turntable 13, the spiral groove 6 drives the adjusting ball 7 to slowly drop from the highest position in the initial state to the lowest position, and then the transmission shaft 30 is driven to be slowly pressed into the mounting hole 29 on the upper disk 17, realizing automatic machine installation, not easily damaging parts. At the same time, a plurality of placement grooves 14 and fixing components 9 are provided in one-to-one correspondence. During the rotation of the active turntable 11, it can drive a plurality of fixing components 9 to install the transmission shaft 30 in sequence, shortening the working time and improving the working efficiency.

[0039] Specific Embodiment Two, please refer to Figures 1-6 , on the basis of Specific Embodiment One, a plurality of sliding grooves 22 are evenly and circumferentially arrayed and penetrated on the surface of the driven turntable 13; the number of the sliding grooves 22 is the same as that of the placement grooves 14; the fixing component 9 includes a sliding plate 23 slidably arranged on the inner wall of the sliding groove 22; the surface of the sliding plate 23 is fixedly connected to the adjusting shaft 8, and an installation frame 24 is fixedly arranged on the bottom surface of the sliding plate 23; an adsorption groove 25 is opened on the bottom surface of the installation frame 24.

[0040] Specifically, a negative pressure adsorbing component is arranged inside the installation frame 24; the negative pressure adsorbing component 26 includes an air pump 27 fixed inside the installation frame 24; an adsorption pipe 28 is fixedly penetrated through the inner wall of the adsorption groove 25; the air suction end of the air pump 27 is fixedly connected to the adsorption pipe 28.

[0041] The operation process of this embodiment is as follows: When the adjusting ball 7 is in the initial state at the highest position, insert the upper end of the transmission shaft 30 into the inside of the adsorption groove 25, and then turn on the air pump 27, so that the air pump 27 adsorbs and fixes the transmission shaft 30 through the adsorption pipe 28, preventing the transmission shaft 30 from falling off the processing table 1 during the installation process. Then place the fan blade 10 in the placement groove 14, so that the plug-in board 15 is in plug-in fit with the plug-in groove 20 of the lower disk 18, and the limiting shaft 16 is in plug-in fit with the limiting groove 21.

[0042] Turn on the servo motor 31 to drive the active turntable 11 to rotate, and then drive the connecting shaft 12 and the driven turntable 13 to rotate. During the rotation of the active turntable 11, the fan blades 10 are driven to rotate, and during the rotation of the driven turntable 13, the sliding plates 23 are driven to rotate.

[0043] During the rotation of the sliding plate 23, the adjusting ball 7 and the adjusting shaft 8 are driven to rotate. The adjusting ball 7 slides along the circular ring groove 5, and the adjusting ball 7 slides in the spiral groove 6 and slowly descends from the highest position in the initial state to the lowest position, and then slowly rises to the original highest position. Then the adjusting shaft 8 drives the sliding plate 23 to slowly move downward along the sliding groove 22, and then drives the sliding plate 23 to slowly press the transmission shaft 30 into the installation hole 29 on the upper disk 17. At this time, the installation of the transmission shaft 30 is completed. Then turn off the servo motor 31 to stop the rotation of the active turntable 11, remove the connected fan 10 and the transmission shaft 30 together, and then turn on the servo motor 31 to continue rotating the active turntable 11 to make the adjusting ball 7 return to the original highest position for the installation of another set of fan 10 and the transmission shaft 30.

[0044] This embodiment uses the air pump 27 to adsorb and fix the transmission shaft 30 through the adsorption pipe 28, preventing the transmission shaft 30 from falling off the processing table 1 during the installation process, and improving the installation efficiency.

[0045] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A press-fit bearing device for processing centrifugal fan blades, comprising a processing table (1); characterized in that: A mounting block (2) is fixed on the side of the processing table (1); an L-shaped fixed shaft (3) is fixed on the surface of the mounting block (2); a processing plate (4) is fixed at one end of the L-shaped fixed shaft (3); The bottom surface of the processing plate (4) is provided with a circular groove (5); the inner wall of the circular groove (5) is provided with a spiral groove (6); the spiral grooves (6) are connected end to end to form a closed loop track; An adjusting ball (7) is slidably arranged on the inner wall of the spiral groove (6); an adjusting shaft (8) is fixed to the side surface of the adjusting ball (7); the adjusting shaft (8) is slidably engaged with the inner wall of the annular groove (5); a fixing component (9) is arranged at the bottom end of the adjusting shaft (8); and a plurality of fan blades (10) are arranged on the surface of the processing table (1).

2. A press-fit bearing device for centrifugal fan blade processing according to claim 1, characterized in that: A driving turntable (11) is rotatably arranged on the surface of the processing table (1); a connecting shaft (12) coaxial with the driving turntable (11) is fixed on the surface of the driving turntable (11); and a driven turntable (13) is fixed on the surface of the connecting shaft (12).

3. A press-fit bearing device for centrifugal fan blade processing according to claim 2, characterized in that: The active turntable (11) has a plurality of placement grooves (14) uniformly arranged in a circular array on its surface; a plug-in board (15) coaxial with the placement groove (14) is fixed to the inner bottom surface; and a limiting axis (16) is fixed to the inner bottom surface of the placement groove (14) away from its axis.

4. A press-fit bearing device for centrifugal fan blade processing according to claim 3, characterized in that: The fan blade (10) is placed in the placement groove (14); the fan blade (10) comprises an upper plate (17), a lower plate (18), and a plurality of impellers (19) arranged between the upper plate (17) and the lower plate (18); a plug-in groove (20) for plugging with the plug-in plate (15) and a limit groove (21) for plugging with the limit shaft (16) are formed through the bottom surface of the lower plate (18).

5. A press-fit bearing device for centrifugal fan blade processing according to claim 3, characterized in that: The surface of the driven turntable (13) is evenly provided with a plurality of slide grooves (22) in a circular array; the number of the slide grooves (22) is the same as the number of the placement grooves (14); the fixed component (9) comprises a slide plate (23) slidably arranged on the inner wall of the slide groove (22); the surface of the slide plate (23) is fixedly connected to the adjustment shaft (8), and a mounting frame (24) is fixed to the bottom surface of the slide plate (23); an adsorption groove (25) is provided on the bottom surface of the mounting frame (24), and a transmission shaft (30) is arranged on the inner wall of the adsorption groove (25); the bottom end of the transmission shaft (30) is plug-fitted with the mounting hole (29).

6. A press-fit bearing device for centrifugal fan blade processing according to claim 5, characterized in that: A negative pressure adsorption component is arranged inside the installation frame (24); the negative pressure adsorption component (26) comprises an air pump (27) fixed inside the installation frame (24); an adsorption tube (28) is fixedly passed through the inner wall of the adsorption groove (25); and the air suction end of the air pump (27) is fixedly connected to the adsorption tube (28).

7. A press-fit bearing device for processing centrifugal fan blades according to claim 4, characterized in that: A mounting shaft is fixed on the surface of the upper plate (17); a mounting hole (29) is formed at the top end of the mounting shaft.

8. A press-fit bearing device for centrifugal fan blade processing according to claim 2, characterized in that: The processing table (1) has a mounting groove on its surface; a servo motor (31) is fixed to the bottom surface of the mounting groove; and the output end of the servo motor (31) is fixedly connected to the active turntable (11).

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