A compressor crankshaft reversing mechanism

Abstract

This utility model discloses a compressor crankshaft reversing mechanism, including a drive base, a central support structure, a rotation adjustment structure, and a fixed sleeve. A drive turntable is provided between the rotation adjustment structure and the central support structure. The drive turntable has several telescopic rods connected to the rotation adjustment structure. The drive turntable (101) has several fixing grooves (103) that cooperate with the fixed sleeve (400). The fixed sleeve cooperates with the rotation adjustment structure. Through the modular design of the fixed sleeve, locking frame, and modular support, it can be adapted to various models of compressor crankshafts. The shrinking arc sleeve and mating shaft inside the fixed sleeve can be adjusted according to the crankshaft size. The locking frame and modular support can also be flexibly adjusted by telescopic rods and hydraulic lifting rods, which significantly improves the versatility and applicability of the mechanism. By supporting multi-degree-of-freedom rotation through the drive turntable and mating frame, the crankshaft can achieve a wide range of maintenance and inspection at a small reversing angle without the need for rotation of the entire circular angle, thus adapting to the reversing and maintenance needs of different crankshafts.

Description

Technical Field

[0001] This utility model relates to the field of compressor crankshaft technology, and in particular to a compressor crankshaft reversing mechanism. Background Technology

[0002] In the maintenance and repair of large compressors, crankshaft rotation is a frequently required step. As a core component of the compressor, the crankshaft needs to be rotated for inspection and maintenance to allow for a comprehensive inspection or repair of components such as the crankshaft, connecting rod, and bearings.

[0003] Existing crankshaft tilting mechanisms are typically designed for specific compressor models and are difficult to adapt to crankshafts of different sizes and shapes, limiting their applicability. Furthermore, the crankshaft has limited freedom of rotation during the tilting process, requiring a large tilting angle for maintenance. Existing mechanisms employ numerous fixed structures, making it difficult to operate the crankshaft once both ends are fixed. Different crankshafts require different operating actions for maintenance, making it difficult to quickly rotate the crankshaft for more comprehensive inspection and maintenance. Consequently, the versatility and operational freedom are low. Therefore, there is an urgent need for a compressor crankshaft tilting mechanism. Utility Model Content

[0004] The purpose of this invention is to address the deficiencies in the existing technology by proposing a compressor crankshaft reversing mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A compressor crankshaft reversing mechanism includes a drive base, a central support structure, a rotation adjustment structure, and a fixed sleeve. A drive turntable is provided between the rotation adjustment structure and the central support structure. The drive turntable has several telescopic rods connected to the rotation adjustment structure. The drive turntable (101) has several fixing grooves (103) that cooperate with the fixed sleeve (400). The fixed sleeve cooperates with the rotation adjustment structure.

[0007] Furthermore, the fixed sleeve has an internal mounting groove, and the mounting groove has equidistantly distributed mating shafts in a ring. The fixed sleeve also has several retractable arc-shaped sleeves that mate with the mating shafts.

[0008] Furthermore, the end of the mating shaft near the mounting groove is provided with a rotating interface that mates with the fixed sleeve, and the rotating interface is connected to a universal flexible shaft.

[0009] Furthermore, the central support structure includes a rotating seat that cooperates with the drive base, the rotating seat is provided with a locking platform, and locking frames are provided on both sides of the locking platform.

[0010] Furthermore, the locking frame includes several locking crossbars, which are connected to the locking platform via connecting support rods, and the connecting support rods rotate via the locking platform.

[0011] Furthermore, the locking crossbar is provided with a plurality of locking buckles, which are connected to the locking crossbar through adjusting rings, and the adjusting rings are fixed to the locking crossbar by bolts.

[0012] Furthermore, the rotation adjustment structure includes several modular support seats, which are movable by the telescopic rod. The top of the modular support seat is provided with a hydraulic lifting rod, and the top of the hydraulic lifting rod is provided with a mating frame that cooperates with the fixed sleeve. A connecting sleeve is provided between the mating frame and the hydraulic lifting rod.

[0013] Furthermore, the mating frame is provided with extension plates on both sides, and the extension plates are provided with a plurality of extension slots that mate with the fixed sleeve, the extension slots being tapered in shape.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The modularly designed fixed sleeve, locking frame, and modular support base can be adapted to various models of compressor crankshafts. The shrinkable arc sleeve and mating shaft inside the fixed sleeve can be adjusted according to the crankshaft size. The locking frame and modular support base can also be flexibly adjusted by telescopic rods and hydraulic lifting rods, which significantly improves the versatility and applicability of the mechanism.

[0016] By driving the turntable, rotating base, and mating frame to support multi-degree-of-freedom rotation, the crankshaft can be inspected and checked over a wide range of angles with a small rotation angle, without the need for rotation of the entire circular angle, thus adapting to the rotation and maintenance needs of different crankshafts. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the overall structure of the compressor crankshaft reversing mechanism proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the rotation adjustment structure of the compressor crankshaft reversing mechanism proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the central support structure of the compressor crankshaft reversing mechanism proposed in this utility model;

[0021] Figure 4 This is one of the structural schematic diagrams of the fixed sleeve of the compressor crankshaft reversing mechanism proposed in this utility model;

[0022] Figure 5 This is the second schematic diagram of the fixed sleeve structure, which is a top view of the compressor crankshaft reversing mechanism proposed in this utility model.

[0023] In the diagram: 100, drive base; 101, drive turntable; 102, telescopic rod; 200, central support structure; 201, rotating seat; 202, locking platform; 203, locking frame; 204, locking crossbar; 205, connecting support rod; 206, locking buckle; 207, adjusting ring; 300, rotation adjustment structure; 301, module support seat; 302, hydraulic lifting rod; 303, mating frame; 304, connecting sleeve; 305, extension plate; 306, extension slot; 400, fixed sleeve; 401, retractable arc sleeve; 402, mounting slot; 403, mating shaft; 404, rotating interface; 405, universal flexible shaft. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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, they should not be construed as limitations on this utility model.

[0026] Example 1: As Figure 1-5 As shown, a compressor crankshaft reversing mechanism includes a drive base 100, a central support structure 200, a rotation adjustment structure 300, and a fixed sleeve 400. A drive turntable 101 is provided between the rotation adjustment structure 300 and the central support structure 200. The drive turntable 101 is provided with a plurality of telescopic rods 102 connected to the rotation adjustment structure 300. The fixed sleeve 400 cooperates with the rotation adjustment structure 300.

[0027] The fixed sleeve 400 is a cylindrical structure. An installation groove 402 is provided inside the fixed sleeve 400. Several retractable arc-shaped sleeves 401 are provided inside the installation groove 402. The retractable arc-shaped sleeves 401 are adjusted in contact with the inside of the fixed sleeve 400 by tightening bolts or by installing and connecting a hydraulic assembly. It should be noted that using a hydraulic assembly with appropriate functions requires the addition of corresponding rod components for connection and extension, allowing the retractable arc-shaped sleeves 401 to change position, thereby squeezing and clamping the crankshaft. When using a hydraulic assembly, appropriate connections are required, and automated control operation is necessary to adjust the size of the installation groove 402. The installation groove 402 has equidistantly distributed mating shafts 403 in a ring. The mating shafts 403 are installed inside the retractable arc-shaped sleeves 401. The retractable arc-shaped sleeves 401 are provided with bearing / ball bearing structures that do not affect the rotation of the mating shafts 403. The mating shafts 403 are located away from... One end of the mounting groove 402 is provided with an inclined section. The end of the mating shaft 403 near the mounting groove 402 is provided with a rotating interface 404 that mates with the fixed sleeve 400. The rotating interface 404 is connected to a universal flexible shaft 405. It is not difficult to see from the above design that the fixed sleeve 400 is used to pre-install and sleeve on both ends of the crankshaft. Because the mating shaft 403 is installed on the inner wall of the fixed sleeve 400, by changing and adjusting the diameter of the mating shaft 403, or by ensuring full contact between the internally provided mating shaft 403 and the crankshaft, the crankshaft can be prevented from easily shaking. When the mating shaft 403 is not rotating, the crankshaft end can be clamped. In addition, the universal flexible shaft 405 can drive the mating shaft 403 to rotate, thereby controlling the clamped crankshaft to rotate at different speeds and axially rotate, thus improving the versatility of the mechanism and adapting it to various models of compressor crankshafts.

[0028] Example 2: As Figure 1-5 As shown, based on Embodiment 1, the central support structure 200 includes a rotating seat 201 that cooperates with the drive base 100. The rotating seat 201 is provided with a locking platform 202. The locking platform 202 is raised and lowered by a hydraulic lifting rod 302. Locking frames 203 are provided on both sides of the locking platform 202.

[0029] The locking frame 203 includes several locking crossbars 204. The locking crossbars 204 are connected to the locking platform 202 via connecting support rods 205. The connecting support rods 205 rotate through the locking platform 202. The connecting support rods 205 are distributed on both sides of the locking platform 202, and each support rod is staggered so that the connecting support rods 205 do not interfere with each other when they drive the locking crossbars 204 to retract or expand. The rotation of the connecting support rods 205 is controlled and driven by the locking platform 202 through a corresponding driving device.

[0030] The locking platform 202 is equipped with corresponding drive structure components, including a hydraulic motor, a hydraulic cylinder, an electromagnetic locker, and an angle sensor.

[0031] The locking crossbar 204 is provided with a plurality of locking buckles 206. The locking buckles 206 are connected to the locking crossbar 204 through adjusting rings 207. The adjusting rings 207 are fixed to the locking crossbar 204 by bolts.

[0032] The rotary adjustment structure 300 includes several module support seats 301. The module support seats 301 are movable by the telescopic rod 102. The top of the module support seat 301 is provided with a hydraulic lifting rod 302. The top of the hydraulic lifting rod 302 is provided with a mating frame 303 that cooperates with the fixed sleeve 400. A connecting sleeve 304 is provided between the mating frame 303 and the hydraulic lifting rod 302.

[0033] The mounting bracket 303 has expansion plates 305 on both sides. The expansion plates 305 have a plurality of expansion slots 306 that cooperate with the fixed sleeve 400. The expansion slots 306 have a conical structure.

[0034] As can be seen from the above design, the locking platform 202 rotates and lifts via the rotating seat 201 to facilitate the installation and fixing of the crankshaft. After fixing, the crankshaft height can be adjusted by lifting for maintenance. After the fixing sleeves 400 are installed at both ends of the crankshaft, it can be placed directly between the two locking crossbars 204 or fixedly mounted on the mating bracket 303 at both ends. The locking platform 202 controls the tightening or loosening of the crankshaft by controlling the locking crossbars 204 on both sides to move closer and further apart. In addition, because the rotating seat 201 and the drive turntable 101 rotate independently, the crankshaft can be flipped by rotation for easy maintenance and inspection. Adjusting the height of the mounting bracket 303 allows the crankshaft to tilt at different angles. After tilting, the crankshaft can still rotate through the mounting sleeve, and both ends can be pre-fixed at the extension plate 305 for angle adjustment, thus achieving controllable crankshaft tilting and reducing manual labor intensity. The tilting angle and speed can be controlled by the drive assembly, and the crankshaft tilting is achieved solely through telescopic movement, increasing the support points during the tilting process. Furthermore, through multi-degree-of-freedom rotation, the same inspection and viewing range can be achieved at smaller tilting angles, improving the versatility of the mechanism and broadening its applicability.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A compressor crankshaft flipping mechanism characterized by, The device includes a drive base (100), a central support structure (200), a rotation adjustment structure (300), and a fixed sleeve (400). A drive turntable (101) is provided between the rotation adjustment structure (300) and the central support structure (200). The drive turntable (101) is provided with a plurality of telescopic rods (102) connected to the rotation adjustment structure (300). The drive turntable (101) is provided with a plurality of fixing grooves (103) that cooperate with the fixed sleeve (400). The fixed sleeve (400) cooperates with the rotation adjustment structure (300).

2. A compressor crankshaft flipping mechanism as set forth in claim 1 wherein, The fixed sleeve (400) has an installation groove (402) inside, and the installation groove (402) has mating shafts (403) distributed in a ring at equal intervals inside. The fixed sleeve (400) has a plurality of shrinkable arc sleeves (401) that mate with the mating shafts (403) inside.

3. A compressor crankshaft flipping mechanism as set forth in claim 2 wherein, The mating shaft (403) has a rotating interface (404) at one end near the mounting groove (402) that mates with the fixed sleeve (400), and the rotating interface (404) is connected to a universal flexible shaft (405).

4. A compressor crankshaft flipping mechanism as set forth in claim 3 wherein, The central support structure (200) includes a rotating seat (201) that cooperates with the drive base (100). The rotating seat (201) is provided with a locking platform (202), and locking frames (203) are provided on both sides of the locking platform (202).

5. A compressor crankshaft flipping mechanism as set forth in claim 4 wherein, The locking frame (203) includes several locking crossbars (204), which are connected to the locking platform (202) via connecting support rods (205). The connecting support rods (205) rotate via the locking platform (202).

6. A compressor crankshaft flipping mechanism as set forth in claim 5 wherein, The locking crossbar (204) is provided with a plurality of locking buckles (206). The locking buckles (206) are connected to the locking crossbar (204) through adjusting rings (207). The adjusting rings (207) are fixed to the locking crossbar (204) by bolts.

7. A compressor crankshaft flipping mechanism as set forth in claim 6 wherein, The rotary adjustment structure (300) includes several module support seats (301). The module support seats (301) are moved by the telescopic rod (102). The top of the module support seat (301) is provided with a hydraulic lifting rod (302). The top of the hydraulic lifting rod (302) is provided with a mating frame (303) that cooperates with the fixed sleeve (400). A connecting sleeve (304) is provided between the mating frame (303) and the hydraulic lifting rod (302).

8. A compressor crankshaft flipping mechanism as set forth in claim 7 wherein, The mounting bracket (303) has expansion plates (305) on both sides. The expansion plates (305) have several expansion slots (306) that cooperate with the fixed sleeve (400). The expansion slots (306) are tapered.

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