Centering tool of planetary reducer

Abstract

The utility model relates to the technical field of planetary speed reducers, in particular to a centering tool of a planetary speed reducer, which comprises a planetary gear distance adjusting assembly, the planetary gear distance adjusting assembly comprises a frame body and a frame seat, the frame body is in interference connection with the frame seat, the center of the frame seat is rotatably connected with a distance adjusting wheel through a hollow bearing, and a plurality of groups of distance adjusting block mounting holes are formed in the surface of the frame body. A distance adjusting block is rotationally connected to the inner wall of the distance adjusting block mounting hole, an inner meshing tooth set is arranged on one side face of the distance adjusting wheel, an outer meshing tooth set matched with the inner meshing tooth set is arranged on the surface of the distance adjusting block, and the distance adjusting block is connected with the distance adjusting wheel in a meshing mode; the centering tool of the planetary reducer can determine the centering positions of a sun gear and a planet gear, overall installation is facilitated, and the installation accuracy is guaranteed. The centering tool of the planetary reducer is simple in structure, convenient to operate, high in practicability and high in practicability and has the advantages that the centering positions of the sun gear and the planet gear can be determined, and the centering tool of the planetary reducer can be used for machining the sun gear and the planet gear.

Description

Technical Field

[0001] This utility model relates to the field of planetary reducer technology, and in particular to a centering fixture for a planetary reducer. Background Technology

[0002] A planetary gear reducer mainly consists of a sun gear, planet gears, an internal gear ring, and a planet carrier. The sun gear is located at the center, and the planet gears rotate around it. At the same time, the planet gears mesh with the internal gear ring, and the planet carrier supports the rotating shaft of the planet gears.

[0003] As a component of a planetary gear reducer, the worker needs to fix the planetary gears, sun gear, internal gear ring, and planet carrier, and ensure that the internal gear ring meshes with the planetary gears. However, during the assembly and meshing process, the positions of the planetary gears and sun gear need to be determined simultaneously. Misalignment between the internal gear ring and sun gear during installation may lead to problems such as poor transmission accuracy, rapid wear, and noise, seriously affecting the performance of the reducer. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this utility model is to provide a centering fixture for a planetary reducer. This device can determine the centering positions of the sun gear and planet gears, which facilitates overall installation and ensures the accuracy of installation.

[0006] To achieve the above objectives, the first aspect of this utility model provides a centering fixture for a planetary reducer, which may include:

[0007] The planetary gear pitch adjustment assembly includes a frame and a frame base. The frame and the frame base are interference-fitted together. The center of the frame base is rotatably connected to the pitch adjustment wheel via a hollow bearing. The surface of the frame has several sets of pitch adjustment block mounting holes. Pitch adjustment blocks are rotatably connected to the inner wall of these mounting holes. One side of the pitch adjustment wheel has an internal gear set. The surface of the pitch adjustment block has an external gear set that matches the internal gear set. The pitch adjustment block and the pitch adjustment wheel are meshed together.

[0008] The other side of the adjusting wheel is fixed with a thread, and the surface of the frame is provided with several sets of sliding grooves. A moving block is slidably connected to the inner wall of this sliding groove. One side of the moving block is provided with threaded teeth that match the thread pitch. The moving block meshes with the adjusting block.

[0009] Several groups of movable blocks are arranged in a circular array around the center of the frame.

[0010] The sun gear centering bearing is located at the center of the frame.

[0011] The sun gear fixing clamp is detachably connected to the center of the sun gear centering bearing;

[0012] Planetary gear centering bearing, the planetary gear centering bearing is fixed on the outer side of the moving block;

[0013] Planetary gear retaining clamp is detachably connected to the center of the planetary gear centering bearing.

[0014] In addition, the centering fixture for the planetary reducer proposed above according to this utility model may also have the following additional technical features:

[0015] Specifically, it also includes an integral gear pitch adjustment assembly, which includes an adjustment plate, a frame seat rotatably connected to the center of the adjustment plate via a bearing, an external gear set fixed to the outer wall of the frame, a pinion rotatably connected to the eccentric position of the adjustment plate via a bearing, the pinion meshing with the external gear set, and a turntable set at the center of the pinion.

[0016] Specifically, several sets of adjustable block mounting holes are arranged in a circular array at the center of the frame.

[0017] Specifically, the inner shafts of both the sun gear centering bearing and the planet gear centering bearing are connected to shafts, one end of which is a hexagonal head. The sun gear fixing fixture and the planet gear fixing fixture each have a hexagonal groove on one side surface that is compatible with the hexagonal head.

[0018] Specifically, it also includes a lifting device, the moving end of which is connected to the planetary gear pitch adjustment assembly.

[0019] Specifically, the lifting device is a linear module lifting device.

[0020] Specifically, the lifting device is a hydraulic lifting device.

[0021] Compared with the prior art, the present invention has the following advantages: the device can determine the centering position of the sun gear and planet gears, which facilitates the overall installation and ensures the accuracy of the installation.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0024] Figure 1 This is a schematic diagram of the centering fixture structure of a planetary reducer according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the planetary gear pitch adjustment assembly in the centering fixture of a planetary reducer according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the frame and frame base structure in the centering fixture of a planetary reducer according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the split structure of the planetary gear pitch adjustment assembly in the centering fixture of a planetary reducer according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the integral gear pitch adjustment assembly in the centering fixture of a planetary reducer according to an embodiment of the present invention.

[0029] Reference numerals: 1. Planetary gear adjusting assembly; 2. Sun gear centering bearing; 3. Sun gear fixing clamp; 4. Planetary gear centering bearing; 5. Planetary gear fixing clamp; 6. Integral gear adjusting assembly; 7. Lifting device; 101. Frame; 102. Frame base; 103. Adjusting wheel; 104. Adjusting block; 105. Thread; 106. Moving block; 601. Adjusting plate; 602. External gear set; 603. Pinion; 604. Turntable; 20a. Shaft. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] The centering fixture of the planetary reducer according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0032] like Figure 1 As shown, the centering fixture of the planetary reducer in this embodiment of the present invention may include: a planetary gear adjusting assembly 1, which includes a frame 101 and a frame seat 102. The frame 101 and the frame seat 102 are interference-fitted. The center of the frame seat 102 is rotatably connected to an adjusting wheel 103 via a hollow bearing. The surface of the frame 101 is provided with a plurality of sets of adjusting block mounting holes. The inner wall of the adjusting block mounting holes is rotatably connected to an adjusting block 104. One side of the adjusting wheel 103 is provided with an internal gear set. The surface of the adjusting block 104 is provided with an external gear set that matches the internal gear set. The adjusting block 104 is meshed with the adjusting wheel 103.

[0033] The other side of the adjusting wheel 103 is fixed with a thread 105. Several sets of sliding grooves are formed on the surface of the frame 101. A moving block 106 is slidably connected to the inner wall of this sliding groove. One side of the moving block 106 has threaded teeth that match the spacing of the thread 105. The moving block 106 meshes with the adjusting block 104.

[0034] Several groups of movable blocks 106 are arranged in a circular array around the center of the frame 102.

[0035] The sun gear centering bearing 2 is located at the center of the frame 102 and is used for the rotation of the sun gear.

[0036] The sun gear fixing clamp 3 is detachably connected to the center of the sun gear centering bearing 2. The sun gear fixing clamp 3 is used to fix the sun gear, and its fixing method can be the central shaft snap-fit ​​method.

[0037] Planetary gear centering bearing 4 is fixed on the outer side of the movable block 106.

[0038] Planetary gear fixing clamp 5 is detachably connected to the center of planetary gear centering bearing 4 and is used to fix the planetary gears. When installing the planetary reducer to complete the internal positioning, first select the model of the sun gear and the model of the planetary reducer according to the reducer model, and select the corresponding sun gear fixing clamp 3 and planetary gear fixing clamp 5 according to the sun gear and planetary reducer. Then, install the sun gear fixing clamp 3 and planetary gear fixing clamp 5 on the sun centering bearing and the planetary gear centering bearing 4, respectively. First, adjust the pitch of the planetary gears through the planetary gear pitch adjustment assembly 1 to find the approximate position, fix the sun gear on the sun gear clamp, and fix the planetary gears on the planetary gear clamp. Adjust the meshing direction of the sun gear and planetary gears by rotating the sun gear and planetary gears, and then make the sun gear and planetary gears mesh again through the planetary gear pitch adjustment assembly 1. At this time, the internal gear and planetary carrier can be installed, thus completing the centering of the planetary reducer.

[0039] The method of adjusting the pitch of the planetary gear adjusting assembly 1 is as follows: rotate the adjusting block 104. The surface of the adjusting block 104 has an internal hexagonal groove. The adjusting block 104 can be driven by a motor and a hexagonal drill bit. When the adjusting block 104 rotates, the adjusting wheel 103, which is engaged with the adjusting block 104, rotates. At the same time as the adjusting wheel 103 rotates, the moving block 106, which is engaged with the adjusting wheel 103, moves in the slide groove of the frame 101, thereby moving the planetary gear fixing clamp 5 and adjusting the position of the planetary gear.

[0040] In one embodiment of this utility model, such as Figure 5As shown, it also includes an integral gear pitch adjustment assembly 6, which includes an adjustment plate 601. The frame 102 is rotatably connected to the center of the adjustment plate 601 via a bearing. An external gear set 602 is fixed to the outer wall of the frame 101. A pinion 603 is rotatably connected to the eccentric position of the adjustment plate 601 via a bearing. The pinion 603 meshes with the external gear set 602. A turntable 604 is provided at the center of the pinion 603.

[0041] In one embodiment of this utility model, a plurality of sets of adjustable block mounting holes are arranged in a circular array at the center of the frame 102.

[0042] In one embodiment of this utility model, such as Figures 2-4 As shown, the inner shafts of the sun gear centering bearing 2 and the planet gear centering bearing 4 are both connected to shafts 20a. One end of the shaft 20a is a hexagonal head. The sun gear fixing clamp 3 and the planet gear fixing clamp 5 are both provided with hexagonal grooves on one side surface that are compatible with the hexagonal head.

[0043] In one embodiment of this utility model, such as Figure 1 As shown, it also includes a lifting device 7. The moving end of the lifting device 7 is connected to the planetary gear adjustment assembly 1. When the planetary reducer is positioned, the center of the planetary reducer and the reducer tooling can be installed through the lifting device 7.

[0044] As one possible scenario, the lifting device 7 is a linear module lifting device, which includes a lead screw bearing seat, a rotating lead screw, a threaded slider 105, and a motor. It may also include a guide rail for guiding purposes. The motor drives the rotating lead screw to move the threaded slider 105 up and down, thereby adjusting the center position of the overall gear set.

[0045] As another possibility, the lifting device 7 is a hydraulic lifting device, which includes a hydraulic cylinder and may also include a guide rail, and the center position of the overall gear set is adjusted by driving the hydraulic cylinder.

[0046] Specifically, the sun gear is fixed on the sun gear fixture, and the planet gears are fixed on the planet gear fixture. The meshing direction of the sun gear and planet gears is adjusted by rotating the sun gear and planet gears, and then the sun gear and planet gears are meshed through the planet gear pitch adjustment assembly 1.

[0047] In summary, this device can determine the centering position of the sun gear and planet gears, facilitating overall installation and ensuring installation accuracy.

[0048] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A centering fixture for a planetary reducer, characterized in that, include: Planetary gear pitch adjustment assembly (1), the planetary gear pitch adjustment assembly (1) includes a frame (101) and a frame seat (102), the frame (101) and the frame seat (102) are interference-fitted, the center of the frame seat (102) is rotatably connected to the pitch wheel (103) through a hollow bearing, the surface of the frame (101) is provided with a plurality of pitch block mounting holes, the inner wall of the pitch block mounting holes is rotatably connected to the pitch block (104), one side of the pitch wheel (103) is provided with an internal gear set, the surface of the pitch block (104) is provided with an external gear set adapted to the internal gear set, the pitch block (104) is meshed with the pitch wheel (103); The other side of the adjusting wheel (103) is fixed with a thread (105). The surface of the frame (101) is provided with several sets of sliding grooves. A moving block (106) is slidably connected to the inner wall of each groove. One side of the moving block (106) is provided with threaded teeth that match the spacing of the thread (105). The moving block (106) meshes with the adjusting block (104). Multiple sets of the movable blocks (106) are arranged in a circular array at the center of the frame (102); A sun gear centering bearing (2) is provided at the center of the frame (102); A sun gear fixing clamp (3) is detachably connected to the center of the sun gear centering bearing (2); Planetary gear centering bearing (4), the planetary gear centering bearing (4) is fixed to the outer side of the movable block (106); Planetary gear fixing clamp (5) is detachably connected to the center of the planetary gear centering bearing (4).

2. The centering fixture for the planetary reducer according to claim 1, characterized in that, It also includes an integral gear pitch adjustment assembly (6), which includes an adjustment plate (601). The frame base (102) is rotatably connected to the center of the adjustment plate (601) via a bearing. An external gear set (602) is fixed to the outer wall of the frame (101). A pinion (603) is rotatably connected to the eccentric position of the adjustment plate (601) via a bearing. The pinion (603) meshes with the external gear set (602). A turntable (604) is provided at the center of the pinion (603).

3. The centering fixture for the planetary reducer according to claim 1, characterized in that, Multiple sets of the adjustable block mounting holes are arranged in a central annular array around the frame base (102).

4. The centering fixture for the planetary reducer according to claim 1, characterized in that, The inner shafts of the sun gear centering bearing (2) and the planet gear centering bearing (4) are both connected to a shaft (20a). One end of the shaft (20a) is a hexagonal head. The sun gear fixing clamp (3) and the planet gear fixing clamp (5) are both provided with hexagonal grooves that are compatible with the hexagonal head on one side surface.

5. The centering fixture for the planetary reducer according to any one of claims 1-4, characterized in that, It also includes a lifting device (7), the moving end of which is connected to the planetary gear pitch adjustment assembly (1).

6. The centering fixture for the planetary reducer according to claim 5, characterized in that, The lifting device (7) is a linear module lifting device.

7. The centering fixture for the planetary reducer according to claim 5, characterized in that, The lifting device (7) is a hydraulic lifting device.

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