Planetary carrier reverse pulling tool

Abstract

The utility model provides a kind of planet carrier anti-pulling tool, comprising: fixed seat, the bottom of fixed seat is symmetrically provided with support leg, pull shaft subassembly includes the second hydraulic rod of even distribution in the surface of fixed seat, the fixed block is fixedly connected in the telescopic end of second hydraulic rod, the fixed block bottom is fixedly connected with connecting rod, the connecting rod bottom is fixedly connected with fixed frame, fixed frame is slidably connected in fixed seat interior, and planet carrier is placed on fixed frame. Pull shaft subassembly is set, second hydraulic rod is started to drive fixed block to move to the center of through-hole, and planet carrier is fixed by extrusion through fixed block, when fixed block moves, connecting rod and fixed frame are driven to move, planet carrier bottom is supported by fixed frame, and the bearing in planet carrier is extruded by first hydraulic rod to drive pressure plate to move downwards, to make planet carrier and bearing separate, second hydraulic rod drives fixed block and fixed frame to move, and it is suitable for planet carrier of different sizes, and it is more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of planetary carrier technology, specifically to a planetary carrier reverse tensioning tool. Background Technology

[0002] The planet carrier is one of the main components of a planetary gear transmission, and the planetary gear shafts or bearings are mounted on it. When the planetary gears are the basic components, they are the parts that bear the largest external torque in the mechanism. The structural design and manufacturing of the planetary gears have a significant impact on the load distribution among the planetary gears, and thus on the load-bearing capacity, noise, and vibration of the transmission. The planet carrier is one of the main components of a planetary gear transmission and is a structurally complex part. A reasonable structure for a planetary carrier should be lightweight, rigid, and easy to manufacture and assemble. Common structural forms include integral double-sided plate type, separate double-sided plate type, and single-sided plate type.

[0003] Chinese patent CN201520936734.0 discloses a non-destructive disassembly device for planetary carrier bearings in wind turbine gearboxes. The device includes an upper pressure plate and screws. The upper pressure plate is connected to hooks via three screws, which are evenly distributed around the horizontal circumference of the upper pressure plate and secured with nuts. Limiting rings are fitted around the hooks. A jack is located below the upper pressure plate, and a lower pressure plate is located below the jack. The diameter of the lower pressure plate is smaller than that of the upper pressure plate. The screws and nuts are M30 screws and M30 nuts. The jack is a hydraulic jack. This device is easy to use and can smoothly achieve non-destructive disassembly of the front and rear bearings of the planetary carrier in a gearbox.

[0004] However, the following drawbacks still exist:

[0005] The limiting ring and hook have fixed dimensions and are not applicable to planetary carriers of different sizes and models. Utility Model Content

[0006] The present invention aims to solve the problems mentioned in the background art by providing a planetary carrier reverse tensioning fixture.

[0007] The specific technical solution is as follows:

[0008] A planetary carrier reverse tensioning fixture includes: a fixed base, supporting legs symmetrically arranged at the bottom of the fixed base, a mounting frame arranged at the top of the fixed base, a first hydraulic rod arranged at the bottom of the mounting frame, a pressure plate arranged at the telescopic end of the first hydraulic rod, a through hole opened on the upper surface of the fixed base, and a pull shaft assembly arranged on the fixed base;

[0009] The pull shaft assembly includes a second hydraulic rod evenly distributed on the surface of the fixed base. The telescopic end of the second hydraulic rod is fixedly connected to a fixed block. The bottom of the fixed block is fixedly connected to a connecting rod. The bottom of the connecting rod is fixedly connected to a fixed frame. The fixed frame is slidably connected inside the fixed base. A planetary carrier is placed on the fixed frame.

[0010] In the aforementioned planetary carrier reverse tensioning fixture, a collecting guide plate is fixedly connected to the bottom of the fixed base, and the collecting guide plate is inclinedly disposed at the bottom of the through hole.

[0011] The planetary carrier anti-pull fixture described above includes: an adjustment component on the fixed base, the adjustment component including a slide groove on the top of the fixed base, a slider slidably connected in the slide groove, a mounting bracket fixedly connected to the top of the slider, and a handle fixedly connected to one side of the mounting bracket.

[0012] The aforementioned planetary carrier anti-pull fixture includes an adjustment component that further comprises a limiting groove at the bottom of the mounting frame, a lead screw rotatably connected in the limiting groove, a limiting block slidably connected in the limiting groove, the limiting block being threadedly connected to the lead screw, a reduction motor fixedly mounted at the bottom of the mounting frame, the output shaft end of the reduction motor being fixedly connected to the lead screw, and the first hydraulic rod being fixedly connected to the bottom of the limiting block.

[0013] In the aforementioned planetary carrier reverse tensioning fixture, the first hydraulic rod is provided with a connecting assembly, the connecting assembly including a connecting ring fixedly connected to the bottom of the telescopic end of the first hydraulic rod, a connecting shaft threadedly connected to the connecting ring, and the connecting shaft fixedly connected to the top of the pressure plate.

[0014] The planetary carrier anti-pull fixture described above, wherein: one side of the fixing block is arc-shaped, and the top of the fixing frame is provided with an anti-slip pad.

[0015] The aforementioned planetary carrier reverse tensioning fixture, wherein: the through hole is located at the center of the fixed base surface, and each group of second hydraulic rods moves synchronously.

[0016] This utility model has the following beneficial effects:

[0017] A pull shaft assembly is provided. Activating the second hydraulic rod moves the fixing block towards the center of the through hole, thereby pressing and fixing the planetary carrier. As the fixing block moves, it also moves the connecting rod and the fixing frame, which in turn supports the bottom of the planetary carrier. The first hydraulic rod moves the pressure plate downward, pressing the bearing inside the planetary carrier to separate it from the bearing. The second hydraulic rod then moves the fixing block and the fixing frame. This design is suitable for planetary carriers of different sizes and is quite convenient to use. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the structure of a planetary carrier anti-tension tool provided in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the bottom structure of the fixing seat of a planetary carrier anti-pull tool provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the pull shaft assembly in a planetary carrier reverse tensioning tooling provided in an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the adjusting component in a planetary carrier anti-pull tooling provided in an embodiment of the present utility model.

[0022] In the attached image:

[0023] 1. Fixed base; 2. Support leg; 3. Mounting bracket; 4. First hydraulic rod; 5. Pressure plate; 6. Through hole; 7. Planetary carrier; 8. Pull shaft assembly; 801. Second hydraulic rod; 802. Fixed block; 803. Connecting rod; 804. Fixed bracket; 9. Adjustment assembly; 901. Slide groove; 902. Slider; 903. Handle; 904. Limiting groove; 905. Lead screw; 906. Limiting block; 907. Gear motor; 10. Connecting assembly; 1001. Connecting ring; 1002. Connecting shaft; 11. Collection guide plate. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example

[0029] This embodiment provides a planetary carrier reverse tensioning fixture, such as... Figures 1-4 As shown, it includes: a fixed base 1, support legs 2 symmetrically arranged at the bottom of the fixed base 1, a mounting bracket 3 arranged at the top of the fixed base 1, a first hydraulic rod 4 arranged at the bottom of the mounting bracket 3, a pressure plate 5 arranged at the telescopic end of the first hydraulic rod 4, a through hole 6 opened on the upper surface of the fixed base 1, and a pull shaft assembly 8 arranged on the fixed base 1.

[0030] The pull shaft assembly 8 includes a second hydraulic rod 801 evenly distributed on the surface of the fixed base 1. The telescopic end of the second hydraulic rod 801 is fixedly connected to a fixed block 802. The bottom of the fixed block 802 is fixedly connected to a connecting rod 803. The bottom of the connecting rod 803 is fixedly connected to a fixed frame 804. The fixed frame 804 is slidably connected inside the fixed base 1. A planetary carrier 7 is placed on the fixed frame 804.

[0031] A planetary carrier reverse-pull tooling using the above technical solution is equipped with a pull shaft assembly 8. Activating the second hydraulic rod 801 moves the fixing block 802 towards the center of the through hole 6, thereby pressing and fixing the planetary carrier 7. As the fixing block 802 moves, it also moves the connecting rod 803 and the fixing frame 804, which in turn supports the bottom of the planetary carrier 7. The first hydraulic rod 4 moves the pressure plate 5 downwards, pressing the bearing inside the planetary carrier 7 to separate it from the bearing. The second hydraulic rod 801 moves the fixing block 802 and the fixing frame 804. This tooling is suitable for planetary carriers 7 of different sizes and is relatively convenient to use.

[0032] To collect the disassembled bearings, a collection guide plate 11 is fixedly connected to the bottom of the mounting base 1. The collection guide plate 11 is inclined and positioned at the bottom of the through hole 6. The disassembled bearings fall down along the slope of the collection guide plate 11, awaiting collection.

[0033] To facilitate the disassembly and removal of bearings at different positions on the planetary carrier 7, an adjustment assembly 9 is provided on the fixed base 1. The adjustment assembly 9 includes a slide groove 901 formed at the top of the fixed base 1, a slider 902 slidably connected within the slide groove 901, a mounting bracket 3 fixedly connected to the top of the slider 902, and a handle 903 fixedly connected to one side of the mounting bracket 3. Pulling the handle 903 causes the mounting bracket 3 and the slider 902 to slide along the slide groove 901, thereby changing the position of the first hydraulic rod 4, facilitating the disassembly of bearings at different positions on the planetary carrier 7.

[0034] To further adjust the position of the first hydraulic rod 4, the adjusting assembly 9 also includes a limiting groove 904 formed at the bottom of the mounting bracket 3. A lead screw 905 is rotatably connected within the limiting groove 904, and a limiting block 906 is slidably connected within the limiting groove 904. The limiting block 906 is threadedly connected to the lead screw 905. A reduction motor 907 is fixedly mounted at the bottom of the mounting bracket 3, and the output shaft end of the reduction motor 907 is fixedly connected to the lead screw 905. The first hydraulic rod 4 is fixedly connected to the bottom of the limiting block 906. The reduction motor 907 drives the lead screw 905 to rotate, thereby causing the limiting block 906 to drive the first hydraulic rod 4 to slide along the limiting groove 904, changing the position of the first hydraulic rod 4. This further adapts to different models of planetary carriers 7 and facilitates the disassembly of the planetary carrier 7 and bearings.

[0035] To accommodate bearings of different sizes, a connecting assembly 10 is provided on the first hydraulic rod 4. The connecting assembly 10 includes a connecting ring 1001 fixedly connected to the bottom of the telescopic end of the first hydraulic rod 4. A connecting shaft 1002 is threaded onto the connecting ring 1001, and the connecting shaft 1002 is fixedly connected to the top of the pressure plate 5. Rotating the pressure plate 5 disengages the connecting shaft 1002 from the connecting ring 1001. A pressure plate 5 of the same size as the bearing is selected to facilitate the separation of the bearing and the planetary carrier 7.

[0036] To better secure the planetary carrier 7, one side of the fixing block 802 is curved, and the top of the fixing frame 804 is equipped with an anti-slip pad to prevent the planetary carrier 7 from sliding.

[0037] To ensure the planetary carrier 7 is centered on the through hole 6, the through hole 6 is positioned centrally on the surface of the fixed base 1, allowing each set of second hydraulic rods 801 to move synchronously. The fixed base 1 is equipped with a hydraulic pump and controller to ensure synchronous movement of each set of second hydraulic rods 801. The hydraulic pump and controller are based on existing technology and will not be described further.

[0038] In summary, the planetary carrier reverse-pull tooling provided in this embodiment has the following advantages: A pull shaft assembly 8 is provided; when the second hydraulic rod 801 is activated, it drives the fixing block 802 to move towards the center of the through hole 6, thereby pressing and fixing the planetary carrier 7. As the fixing block 802 moves, it drives the connecting rod 803 and the fixing frame 804 to move, supporting the bottom of the planetary carrier 7. The first hydraulic rod 4 drives the pressure plate 5 to move downwards, pressing the bearing inside the planetary carrier 7 to separate the planetary carrier 7 from the bearing. The second hydraulic rod 801 drives the fixing block 802 and the fixing frame 804 to move. This tooling is suitable for planetary carriers 7 of different sizes and is relatively convenient to use.

[0039] In use, the second hydraulic rod 801 is activated, causing the fixing block 802 to move towards the center of the through hole 6. As the fixing block 802 moves, it also moves the connecting rod 803 and the fixing frame 804, placing the planetary carrier 7 to be disassembled onto the surface of the fixing frame 804. The second hydraulic rod 801 is then extended, bringing the fixing block 802 into contact with the surface of the planetary carrier 7, thus fixing the planetary carrier 7. The bearing position is determined, and a pressure plate 5 of the same size is selected based on the bearing dimensions to facilitate separation of the bearing and the planetary carrier 7. Pulling the handle 903 causes the mounting bracket 3 and the slider 902 to slide along the slide groove 901, thereby changing the position of the first hydraulic rod 4. The reduction motor 907 drives the lead screw 905 to rotate, causing the limiting block 906 to move the first hydraulic rod 4 along the limiting groove 904, changing the position of the first hydraulic rod 4. After the first hydraulic rod 4 is positioned directly above the bearing, the first hydraulic rod 4 is activated, causing the pressure plate 5 to move downwards, separating the planetary carrier 7 from the bearing.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A planetary carrier anti-tensioning fixture, characterized in that, include: A fixed base (1) is provided with supporting legs (2) symmetrically arranged at the bottom of the fixed base (1), a mounting frame (3) is provided at the top of the fixed base (1), a first hydraulic rod (4) is provided at the bottom of the mounting frame (3), a pressure plate (5) is provided at the telescopic end of the first hydraulic rod (4), a through hole (6) is provided on the upper surface of the fixed base (1), and a pull shaft assembly (8) is provided on the fixed base (1). The pull shaft assembly (8) includes a second hydraulic rod (801) evenly distributed on the surface of the fixed seat (1). The telescopic end of the second hydraulic rod (801) is fixedly connected to a fixed block (802). The bottom of the fixed block (802) is fixedly connected to a connecting rod (803). The bottom of the connecting rod (803) is fixedly connected to a fixed frame (804). The fixed frame (804) is slidably connected inside the fixed seat (1). A planetary carrier (7) is placed on the fixed frame (804). An adjustment component (9) is provided on the fixed base (1). The adjustment component (9) includes a slide groove (901) opened on the top of the fixed base (1). A slider (902) is slidably connected in the slide groove (901). The mounting bracket (3) is fixedly connected to the top of the slider (902). A handle (903) is fixedly connected to one side of the mounting bracket (3). The adjustment component (9) also includes a limiting groove (904) opened at the bottom of the mounting bracket (3). A lead screw (905) is rotatably connected in the limiting groove (904). A limiting block (906) is slidably connected in the limiting groove (904). The limiting block (906) is threadedly connected to the lead screw (905). A reduction motor (907) is fixedly installed at the bottom of the mounting bracket (3). The output shaft end of the reduction motor (907) is fixedly connected to the lead screw (905). The first hydraulic rod (4) is fixedly connected to the bottom of the limiting block (906).

2. The planetary carrier reverse tensioning fixture according to claim 1, characterized in that, The bottom of the fixed base (1) is fixedly connected to a collection guide plate (11), which is inclinedly arranged at the bottom of the through hole (6).

3. The planetary carrier anti-tension tooling according to claim 1, characterized in that, The first hydraulic rod (4) is provided with a connecting assembly (10), the connecting assembly (10) includes a connecting ring (1001) fixedly connected to the bottom of the telescopic end of the first hydraulic rod (4), the connecting ring (1001) is threadedly connected to a connecting shaft (1002), and the connecting shaft (1002) is fixedly connected to the top of the pressure plate (5).

4. The planetary carrier anti-tension tooling according to claim 1, characterized in that, The fixing block (802) is arc-shaped on one side, and the top of the fixing frame (804) is provided with an anti-slip pad.

5. The planetary carrier anti-tension tooling according to any one of claims 1-4, characterized in that, The planetary carrier (7) is positioned at the center of the surface of the through hole (6), and each set of the second hydraulic rods (801) moves synchronously.

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