Mechanical arm for dismounting a bearing protector

Abstract

The utility model belongs to the field of fan bearing box dismounting, concretely relates to a mechanical arm of dismounting bearing protector, and the device includes: main body frame, clamping device and puller, the main body frame is the frame structure of bottom opening, the both sides of main body frame bottom are opposite and provided with clamping device, the puller is slidably connected in the top of main body frame, the end of clamping device is connected in the side of bearing box, the bottom of puller is placed below bearing protector in bearing box. The device can make bearing protector not easy to be damaged in the process of dismounting, and the operation process is more safe, so that the protector can continue to keep the performance unchanged when being used again.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine bearing housing disassembly, specifically to a robotic arm for disassembling bearing protectors. Background Technology

[0002] Bearing protectors are widely used in the fan industry, primarily installed in the bearing housings of the fan drive system. One protector is used for each of the front and rear bearings. Bearings are crucial components of the fan system, making the bearing protector's role extremely important. The bearing protector consists of a stationary ring and a rotating ring. After installation, the stationary ring is secured to the bearing housing, while the rotating ring rotates with the fan shaft. When the fan shaft rotates, a micro-gap is created between the stationary and rotating rings, allowing lubricating oil to flow. When stationary, the micro-gap closes, forming a perfect seal. This simultaneously prevents atmospheric air and water vapor from entering the bearing cavity, ensuring the lubricating oil remains uncontaminated. The diagram shows a schematic of the bearing protector and its location within the bearing housing. The bearing protector is small in size and has a small clearance, requiring careful installation within the bearing housing. Because the protector has an interference fit with the bearing housing, the workshop sometimes uses a hammer to tap the surface of the protector during installation to remove it. This can easily deform the protector surface, causing excessive clearance and compromising the cleanliness of the lubricating oil, ultimately rendering the protector unusable.

[0003] Therefore, without solving the aforementioned problems, a robotic arm for disassembling bearing protectors is proposed. Utility Model Content

[0004] This utility model addresses the problems mentioned above by designing a robotic arm for disassembling bearing protectors. This device prevents the bearing protector from deformation and damage during disassembly, making the operation safer and ensuring that the protector maintains its performance when used again.

[0005] To achieve the above objectives, this utility model provides a robotic arm for disassembling a bearing protector, comprising: a main frame, a clamping device, and a lifting device. The main frame is a frame-shaped structure with an open bottom. The clamping device is disposed on both sides of the bottom of the main frame. The lifting device is slidably connected to the top of the main frame. The end of the clamping device is abutted against the side of the bearing housing. The bottom of the lifting device is positioned below the bearing protector inside the bearing housing.

[0006] The clamping device secures the bearing housing using the above method. Then, the top lifting device is lowered and inserted into the bearing housing, placing the bottom of the device under the bearing protector. The lifting device is then raised, lifting the bearing protector.

[0007] Furthermore, the clamping device includes a threaded rod, a chuck, and a handwheel. The handwheel is installed at one end of the threaded rod, the threaded rod is connected to the main frame, and the chuck is rotatably connected to the other end of the threaded rod.

[0008] By rotating the handwheel to drive the threaded rod forward, the chuck at the front end abuts against the side of the bearing housing. The chucks abut against the bearing housing from both sides, thus fixing the entire device onto the bearing housing.

[0009] Furthermore, the lifting device includes a driving part, a lifting box, and a locking part. The driving part is installed on the top of the main frame, the lifting box is fixedly connected to the lower part of the driving part, and the locking part is slidably connected to the lower part of the lifting box.

[0010] Furthermore, the drive unit includes a threaded post and a limiting rod. The threaded post is slidably connected to the top of the main frame, and a handwheel is connected to the threaded post. Two limiting rods are fixedly connected to the main frame, and the limiting rods are located on both sides of the threaded post. The lifting box is fixedly connected to the bottom of the threaded post, and the lifting box is slidably connected to the limiting rod.

[0011] Furthermore, the pull-out box includes a slide groove and a baffle. The pull-out box has a hollow structure. A slide groove is provided at the bottom of the pull-out box. The snap-fit ​​part is slidably connected in the slide groove, and the baffle is fixedly connected inside the pull-out box.

[0012] Furthermore, the locking part includes: a lead screw, a slide block, a base plate, a limiting plate, a long rod, and a support plate. The lead screw is rotatably connected in the lifting box. There are two slide blocks, both of which are connected to the lead screw. The base plate is fixedly connected to the lower part of the slide block. The limiting plate is fixedly connected to the middle part of the slide block. The sliding groove is located between the base plate and the limiting plate. The long rod is fixedly connected to the lower part of the base plate. The support plate is installed at the lower part of the long rod.

[0013] Using the above method, the screw is rotated to move the long rod inward until it can reach the bearing housing. The lifting box is then lowered via the threaded column, causing the long rod to move the support plate downward. When the support plate moves to the lower part of the bearing protector, the screw is rotated again to move the support plate outward, positioning it below the edge of the protector so that it can lift the protector. Then, the threaded column is controlled to rise, causing the protector to rise until it is removed.

[0014] Furthermore, the end of the tray is a fan-shaped structure, the bottom of the tray is provided with a mounting groove, and positioning holes are provided on both sides of the mounting groove.

[0015] Furthermore, it also includes a locking lever, which is movably mounted on the clamp.

[0016] In summary, this utility model has the following advantages and beneficial technical effects: 1. The present invention provides a robotic arm for disassembling bearing protectors, which can remove the protectors without damaging them, thus protecting the protectors and not affecting subsequent use. It also replaces manual operation, improves disassembly efficiency, and ensures worker safety. 2. The mechanical arm for disassembling bearing protectors of this utility model can manually adjust the extension length of the tray through the mounting groove and positioning hole on the tray, which can improve the applicability of the device.

[0017] 3. The robotic arm for disassembling bearing protectors of this utility model can more stably clamp the bearing housing through the locking rod on the chuck, preventing the uneven surface of the bearing housing from causing unstable clamping. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a robotic arm for disassembling a bearing protector according to this utility model; Figure 2 This is a cross-sectional view of a robotic arm for disassembling a bearing protector according to this utility model; Figure 3 This is a bottom view of a robotic arm for disassembling a bearing protector according to this utility model; Figure 4 This is the utility model Figure 2 Enlarged view of A in the middle; Figure 5 This is a schematic diagram of the bottom structure of the pull-out box of this utility model.

[0019] The reference numerals in the attached figures are: 1-Main framework; 2-Clamping device; 21-Threaded rod; 22-Chuck; 23-Handwheel; 24-Locking rod; 3-Lifting device; 31-Drive unit; 311-Threaded column; 312-Limiting rod; 32-Lifting box; 321-Slide groove; 322-Baffle; 33-Snap-fit ​​part; 331-Screw rod; 332-Slide seat; 333-Base plate; 334-Limiting plate; 335-Long rod; 336-Support plate; 337-Mounting groove; 338-Positioning hole. Detailed Implementation

[0020] The following is in conjunction with the appendix Figures 1-5The present invention will be further described in detail below. Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or 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 according to the specific circumstances.

[0022] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning. All parts and equipment use conventional models found in the prior art, and the circuit connections employ conventional connection methods found in the prior art, which will not be detailed here. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, it includes: a main frame 1, a clamping device 2 and a lifting device 3. The main frame 1 is a frame structure with an open bottom. There are two clamping devices 2. The clamping devices 2 are arranged opposite to each other on both sides of the bottom of the main frame 1. The lifting device 3 is slidably connected to the top of the main frame 1. The end of the clamping device 2 is abutted against the side of the bearing housing. The bottom of the lifting device 3 is placed below the bearing protector inside the bearing housing.

[0024] like Figure 1 , Figure 2 and Figure 3As shown, the clamping device 2 includes a threaded rod 21, a chuck 22, and a handwheel 23. The handwheel 23 is mounted on the end of the threaded rod 21, allowing the threaded rod 21 to rotate by turning the handwheel 23. The handwheel 23 is rotatably connected to the main frame 1, ensuring it does not detach from the main frame 1 during rotation. The threaded rod 21 is threadedly connected to the main frame 1, and the other end of the threaded rod 21 is rotatably connected to the chuck 22. It also includes a locking rod 24, which is movably mounted on the chuck 22. The locking rod 24 is a bolt; by rotating the nut, the extension length of the locking rod 24 can be adjusted, providing an adaptive clamping effect on the side of the bearing housing. A rubber pad for cushioning is provided at the end of the locking rod 24.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the lifting device 3 includes a driving part 31, a lifting box 32, and a locking part 33. The driving part 31 is installed on the top of the main frame 1, the lifting box 32 is fixedly connected to the lower part of the driving part 31, and the locking part 33 is slidably connected to the lower part of the lifting box 32.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the drive unit 31 includes a threaded post 311 and a limiting rod 312. A through hole is provided at the top of the main frame 1. The threaded post 311 is slidably connected in the through hole at the top of the main frame 1. A handwheel 23 is connected to the threaded post 311. The handwheel 23 is rotatably connected to the main frame 1 so that the handwheel 23 can be stably fixed to the main frame 1 when driving the threaded post 311 to move. Two limiting rods 312 are fixedly connected to the main frame 1 by bolts. The limiting rods 312 are located on both sides of the threaded post 311. A lifting box 32 is fixedly connected to the bottom of the threaded post 311 by welding. A through hole is provided at the top of the lifting box 32. The lifting box 32 is slidably connected to the limiting rod 312.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the pull-out box 32 includes a slide groove 321 and a baffle 322. The pull-out box 32 has a hollow structure. The bottom of the pull-out box 32 has a slide groove 321. The snap-fit ​​part 33 is slidably connected in the slide groove 321. The baffle 322 is fixedly connected to the inside of the pull-out box 32 by welding.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the locking part 33 includes: a lead screw 331, a slide block 332, a base plate 333, a limiting plate 334, a long rod 335, and a support plate 336. The lead screw 331 is rotatably connected to the lifting box 32 and is located at the lower part of the baffle 322. There are two slide blocks 332, both of which are connected to the lead screw 331. The threads in the two slide blocks 332 are opposite in direction. The lower part of the slide block 332 is fixedly connected to the base plate 333 by welding. The limiting plate 334 is fixedly connected to the middle part of the slide block 332 by welding. The sliding groove 321 is located between the base plate 333 and the limiting plate 334. The lower part of the base plate 333 is fixedly connected to the long rod 335 by welding. The support plate 336 is installed at the lower part of the long rod 335 by bolts.

[0029] like Figure 5 As shown, the end of the support plate 336 has a fan-shaped structure, and the bottom of the support plate 336 has a mounting groove 337. Positioning holes 338 are provided on both sides of the mounting groove 337. By moving the support plate 336 so that different positioning holes 338 are aligned with the bolt holes at the bottom of the long rod 335, and then tightening the bolts, the extension length of the support plate 336 can be adjusted.

[0030] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A robotic arm for disassembling bearing protectors, characterized in that, include: The main frame (1), clamping device (2) and lifting device (3) are provided. The main frame (1) is a frame structure with an open bottom. The clamping device (2) is provided on both sides of the bottom of the main frame (1). The lifting device (3) is slidably connected to the top of the main frame (1). The end of the clamping device (2) is abutted against the side of the bearing housing. The bottom of the lifting device (3) is placed below the bearing protector inside the bearing housing.

2. The robotic arm for disassembling a bearing protector according to claim 1, characterized in that, The clamping device (2) includes a threaded rod (21), a chuck (22) and a handwheel (23). The handwheel (23) is installed at the end of the threaded rod (21). The threaded rod (21) is connected to the main frame (1). The chuck (22) is rotatably connected to the other end of the threaded rod (21).

3. The robotic arm for disassembling a bearing protector according to claim 1, characterized in that, The lifting device (3) includes a driving part (31), a lifting box (32) and a locking part (33). The driving part (31) is installed on the top of the main frame (1), the lifting box (32) is fixedly connected to the lower part of the driving part (31), and the locking part (33) is slidably connected to the lower part of the lifting box (32).

4. The robotic arm for disassembling a bearing protector according to claim 3, characterized in that, The drive unit (31) includes a threaded post (311) and a limiting rod (312). The threaded post (311) is slidably connected to the top of the main frame (1). A handwheel (23) is connected to the threaded post (311). The handwheel (23) is rotatably connected to the main frame (1). Two limiting rods (312) are fixedly connected to the main frame (1). The limiting rods (312) are located on both sides of the threaded post (311). The bottom of the threaded post (311) is fixedly connected to the lifting box (32). The lifting box (32) is slidably connected to the limiting rod (312).

5. A robotic arm for disassembling a bearing protector according to claim 3, characterized in that, The pull-out box (32) includes a groove (321) and a baffle (322). The pull-out box (32) has a hollow structure. The bottom of the pull-out box (32) has a groove (321). The snap-fit ​​part (33) is slidably connected in the groove (321). The baffle (322) is fixedly connected inside the pull-out box (32).

6. A robotic arm for disassembling a bearing protector according to claim 5, characterized in that, The locking part (33) includes: a lead screw (331), a slide (332), a base plate (333), a limiting plate (334), a long rod (335), and a support plate (336). The lead screw (331) is rotatably connected in the lifting box (32). There are two slides (332), and both slides (332) are connected to the lead screw (331). The base plate (333) is fixedly connected to the lower part of the slide (332). The limiting plate (334) is fixedly connected to the middle part of the slide (332). The sliding groove (321) is located between the base plate (333) and the limiting plate (334). The long rod (335) is fixedly connected to the lower part of the base plate (333). The support plate (336) is installed on the lower part of the long rod (335).

7. A robotic arm for disassembling a bearing protector according to claim 6, characterized in that, The end of the tray (336) is a fan-shaped structure, and the bottom of the tray (336) is provided with an installation groove (337). Positioning holes (338) are provided on both sides of the installation groove (337).

8. A robotic arm for disassembling a bearing protector according to claim 2, characterized in that, It also includes a locking lever (24), which is movably mounted on the chuck (22).

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