Composite planetary press-fitting tooth aligning device

Abstract

The invention discloses a compound planet press-fitting tooth aligning device which comprises an upper base, a lower base, a gear aligning device and a gear aligning device. A through hole is formed in the middle of the upper base, a tooth-shaped top plate is arranged below the upper base, the lower base is connected to the lower portion of the tooth-shaped top plate, a containing cavity is formed in the lower base, a through hole and a position meter base close to the through hole are formed in the middle of the bottom of the lower base, and a dial gauge seat is arranged above the meter base. The tooth aligning oil cylinder is fixed at the bottom of the lower base; the tooth alignment combination device is arranged at the position, close to the edge, above the upper base, and a dial indicator is arranged on the upper portion of the tooth alignment combination device; the tooth aligning and pressing device is arranged above the upper base; and the long bolt penetrates through the tooth aligning and pressing device and is screwed on the end surface of the star shaft. By means of the compound type planet press-fitting tooth aligning device, a planet wheel and a planet shaft can be efficiently press-fitted, teeth of the two parts form a specific angle, transmission load of a planet assembly is even, the compound type planet press-fitting tooth aligning device has the advantages of being accurate in positioning, easy to operate, capable of saving time and labor and the like, and the production efficiency can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, and in particular to a composite planetary press-fit gear alignment device. Background Art

[0002] Gear press-fit technology is a commonly used assembly process in the machinery manufacturing industry, especially suitable for parts that require high-precision and high-strength connection, such as gears, shafts, etc. Gear press-fit technology is mainly a process method that accurately aligns two or more parts with tooth shapes (such as splines, gears, etc.) and then tightly combines them through press-fit force. This technology is widely used in the assembly of transmission systems in the fields of automobiles, aerospace, engineering machinery, etc.

[0003] The gearbox in a wind turbine is one of the key components, responsible for converting the low-speed rotation of the wind wheel into the high-speed rotation required by the generator, and transmitting huge power and torque. Therefore, the performance of the gearbox directly affects the operating status and reliability of the entire wind power system. The tooth press-fit technology can ensure the precise alignment and tight combination of the gears and shafts in the gearbox, thereby improving the transmission efficiency and stability of the gearbox. A planetary assembly transmission method unique to the field of wind power gearboxes; when the six planetary wheels are assembled with the planetary shaft, the gears need to form a specific angle (the angle of the six press-fit planetary assemblies is the same), so that the planetary assembly is evenly loaded during transmission. Summary of the invention

[0004] The main purpose of the present invention is to provide a composite planetary press-fit gear alignment device, which overcomes the above technical problems.

[0005] In order to achieve the above object, the present invention proposes the following technical solutions:

[0006] A composite planetary press-fit gear alignment device, comprising:

[0007] The upper base has a through hole in the middle:

[0008] The lower base is connected to the lower part of the upper base. A toothed top plate is provided at the connection between the lower base and the upper base. A receiving cavity is provided inside. A through hole is provided at the middle part of the bottom. A dial base is provided near the through hole. A micrometer base is provided above the dial base.

[0009] The gear cylinder passes through the through hole at the bottom of the lower base and is fixed to the bottom of the lower base;

[0010] The gear assembly device is arranged above the upper base and close to the edge, and a micrometer is arranged on the upper part of the gear assembly device;

[0011] The gear pressing device is arranged above the upper base;

[0012] The tensioner is provided with a long bolt at the bottom. The long bolt passes through the tooth pressing device and is connected to the end face of the planetary shaft for press-fitting the planetary gear and the planetary shaft.

[0013] Furthermore, the gear pressing device includes: a gear pressing plate, a thrust ball bearing and a gear pressing plate. During press-fitting, the gear pressing plate presses the planetary gear and is in close contact with the planetary gear. The thrust ball bearing 8 is connected to the top of the gear pressing plate, and the gear pressing plate is connected to the top of the thrust ball bearing.

[0014] Furthermore, a top is provided on the gear cylinder to limit the left-right swing of the planetary shaft.

[0015] Furthermore, three stretchers are provided in the device.

[0016] Furthermore, the three tensioners are all provided with high-pressure connectors, and the high-pressure connectors are connected to the high-pressure oil pipes.

[0017] Furthermore, the three tensioners are connected in series through a medium-pressure oil pipe and connected to the oil station.

[0018] Furthermore, the gear cylinder 6 is connected to the lower base by bolt connection.

[0019] Furthermore, the upper base and the lower base are connected by bolts.

[0020] Furthermore, the connection between the tooth assembly device and the upper base is bolted.

[0021] Furthermore, a cylinder sleeve is provided on the inner ring of the gear cylinder for clamping the planetary shaft.

[0022] Through the composite planetary press-fit gear alignment device of the present invention, the planetary gear and the planetary shaft can be efficiently press-fitted and the teeth of the two parts form a specific angle, so that the planetary assembly is evenly loaded during transmission. It has the advantages of precise positioning, simple operation, time saving and labor saving, and can effectively improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0024] In the attached picture:

[0025] Figure 1 The overall structural schematic diagram of a composite planetary press-fit gear alignment device of the present invention is shown.

[0026] Figure 2 A side sectional view of a composite planetary press-fit gear alignment device of the present invention is shown.

[0027] Figure 3The side cross-sectional view of a composite planetary press-fit gear alignment device of the present invention is shown in a state where a planetary gear and a planetary shaft are installed.

[0028] The above drawings include the following reference numerals:

[0029] 1. Upper base; 2. Lower base; 3. Dial base; 4. Micrometer seat; 5. Gear assembly device; 6. Gear cylinder; 7. Gear lower pressure plate; 8. Thrust ball bearing; 9. Gear pressure plate; 11. Upper dial seat; 12. Micrometer; 19. Center; 21. Lower dial seat; 22. Toothed top plate; 61. Cylinder sleeve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] 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 present application. 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.

[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0033] Reference below Figures 1 to 3 , the present invention is further described:

[0034] A composite planetary press-fit gear alignment device, comprising:

[0035] The upper base 1 has a through hole in the middle:

[0036] The lower base 2 is connected to the lower part of the upper base 1. A toothed top plate 22 is provided at the connection between the lower base 2 and the upper base 1. A receiving cavity is provided inside. A through hole is provided at the middle part of the bottom. A dial base 3 is provided near the through hole. A micrometer base 4 is provided above the dial base 3.

[0037] The gear oil cylinder 6 passes through the through hole at the bottom of the lower base 2 and is fixed to the bottom of the lower base 6;

[0038] The gear assembly device 5 is arranged above the upper base 1 and close to the edge. A micrometer 12 is arranged on the upper part of the gear assembly device 5.

[0039] An upper table seat 11 is arranged above the upper base 1, and a lower table seat 21 is arranged on the lower base 2. When aligning the gears, the upper table seat 11 and the lower table seat 21 are fixed so that the gears of the wheel shaft have an angle difference;

[0040] The gear pressing device is arranged above the upper base 1;

[0041] The tensioner is provided with a long bolt at the bottom, which passes through the tooth pressing device and is connected to the end face of the planetary shaft for press-fitting the planetary gear and the planetary shaft. The toothed top plate 22 is used as a positioning reference for press-fitting so that the planetary shaft can be placed vertically.

[0042] The gear pressing device is used to connect the tensioner, including: a gear pressing plate 7, a thrust ball bearing 8 and a gear pressing plate 9. When press-fitting, the gear pressing plate 7 presses the planetary gear and is in close contact with the planetary gear. The thrust ball bearing 8 is connected to the top of the gear pressing plate 7, and the gear pressing plate 9 is connected to the top of the thrust ball bearing 8. When press-fitting is required, the tensioner drives the gear pressing plate 7 to press the planetary gear into the planetary shaft.

[0043] A top 19 is provided on the gear cylinder 6 for limiting the left and right swing of the planetary shaft. When the cylinder sleeve 61 holds the planetary shaft tightly, the swing will occur. By supporting the planetary shaft with the top 19, the left and right swing of the planetary shaft can be limited.

[0044] The device is provided with three tensioners, each of which is provided with a high-pressure joint, and the high-pressure joint is connected to the high-pressure oil pipe.

[0045] The three tensioners are connected in series through a medium-pressure oil pipe and connected to the oil station.

[0046] Furthermore, the gear cylinder 6 is connected to the lower base by bolt connection.

[0047] Furthermore, the upper base 1 and the lower base 2 are connected by bolts.

[0048] Furthermore, the connection between the tooth assembly device 5 and the upper base 1 is bolted.

[0049] Furthermore, a cylinder sleeve 61 is provided on the inner ring of the gear cylinder 6 for holding the planetary shaft tightly. When the gear cylinder is pressurized, the cylinder sleeve 61 can hold the planetary shaft tightly, so that the planetary shaft can not rotate when the gear is pressed.

[0050] The entire tooling is positioned by the positioning plate during press-fitting, the cylinder is locked, the stretcher presses the planetary gear to the shaft size, and high-pressure oil is pumped into the oil hole of the planetary gear through the oil pump to expand the planetary gear, form an oil film between the planetary gear and the planetary shaft, and rotate the planetary gear to make the teeth of the planetary gear and the planetary shaft form an angle. During this process, the cylinder always holds the planetary shaft tightly.

[0051] In actual operation, the process of tooth pressing is as follows:

[0052] Pre-install the components and place them on the upper base 1 and the lower base 2. The toothed top plate 22 presses against the end face of the bearing seat as a positioning reference, and the top 19 presses against the middle hole of the planetary shaft (to limit the left and right swing of the planetary shaft and ensure better coaxiality and verticality between the shaft and the base). Install the lifting gear pressing device, place the gear end face to align the center, and install the tensioner on the gear pressing device. The three tensioners are connected in series with medium-pressure oil pipes and connected to the oil station. The output ends of the three high-pressure oil pipes are respectively connected to the high-pressure joints installed on the three planetary gears, and the two medium-pressure oil pipes are connected to the gear cylinder 6. When press-fitting the gears, fix the upper and lower gauge seats, press the 12th pin of the micrometer against the gear tooth surface, use two medium-pressure oil pipes to pressurize the oil cylinder of the lower base 2, repeat clamping and decompression three times until the value of the lower gauge is stable and unchanged, and the inner wall of the medium-pressure holding cylinder holds the planetary shaft tightly; pressurize the tensioner oil pipe with medium pressure, press the planetary gear onto the planetary shaft, confirm that the planetary gear and the shaft end face are pressed to the same height and stop pressurizing; pressurize the three high-pressure oil pipes to form a high-pressure oil film to expand the space between the planetary gear and the planetary shaft, knock the planetary gear tooth surface with a copper rod, rotate and adjust the planetary gear angle so that the micrometer (upper gauge) reaches the target indication, and the tensioner is used for medium pressure to maintain pressure.

[0053] The composite planetary press-fit gear alignment device of the present application has the characteristics of high precision, high efficiency and high reliability. When used in the assembly of the gearbox in the wind turbine generator set, it can ensure the stability and reliability of the gearbox and improve the power generation efficiency and service life of the wind turbine generator set.

[0054] In the description of the present invention, it is necessary to understand 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 invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements 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 invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0055] 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 other 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.

[0056] 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 present invention.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite planetary press-fit gear device, characterized in that: include: The upper base (1) has a through hole in the middle: A lower base (2) is connected to the lower part of the upper base (1); a toothed top plate (22) is provided at the connection between the lower base (2) and the upper base (1); a receiving cavity is provided inside the lower base (2); a through hole is provided at the middle part of the bottom; a dial base (3) is provided near the through hole; and a micrometer base (4) is provided above the dial base (3); A gear oil cylinder (6) passes through a through hole at the bottom of the lower base (2) and is fixed to the bottom of the lower base (6); A tooth assembly device (5) is arranged above the upper base (1) and close to the edge, and a micrometer (12) is arranged on the upper part of the tooth assembly device (5); A tooth pressing device is arranged above the upper base (1); The tensioner is provided with a long bolt at the bottom, and the long bolt passes through the gear pressing device and is rotated on the end face of the planet shaft to press the planetary gear and the planetary shaft.

2. A composite planetary press-fit gear alignment device according to claim 1, characterized in that: The gear pressing device comprises: a gear pressing plate (7), a thrust ball bearing (8) and a gear pressing plate (9). When press-fitting, the gear pressing plate (7) presses the planetary gear and is in close contact with the planetary gear. The thrust ball bearing (8) is connected to the top of the gear pressing plate (7), and the gear pressing plate (9) is connected to the top of the thrust ball bearing (8).

3. A composite planetary press-fit gear alignment device according to claim 1, characterized in that: The gear-matching oil cylinder (6) is provided with a top (19) for limiting the left-right swing of the planetary shaft.

4. A composite planetary press-fit gear alignment device according to claim 1, characterized in that: Three stretchers are provided in the device.

5. A composite planetary press-fit gear alignment device according to claim 4, characterized in that: The three stretchers are all provided with high-pressure connectors, and the high-pressure connectors are connected to high-pressure oil pipes.

6. A composite planetary press-fit gear alignment device according to claim 4, characterized in that: The three tensioners are connected in series through a medium-pressure oil pipe and connected to an oil station.

7. A composite planetary press-fit gear alignment device according to claim 1, characterized in that: The gear-matching oil cylinder (6) is connected to the lower base by bolt connection.

8. The composite planetary press-fit gear alignment device according to claim 1, characterized in that: The upper base (1) and the lower base (2) are connected by bolts.

9. A composite planetary press-fit gear alignment device according to claim 8, characterized in that: The connection between the tooth assembly device (5) and the upper base (1) is a bolt connection.

10. The composite planetary press-fit gear alignment device according to claim 1, characterized in that: The inner ring of the gear-matching oil cylinder (6) is provided with a cylinder sleeve (61) for clamping the planetary shaft.

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