Compensator hoisting tool

Abstract

The invention relates to a compensator hoisting tool which comprises a first hoisting arm used for hoisting a steam turbine rotor; the second lifting arm is used for lifting the shaft seal compensator, the second lifting arm and the first lifting arm extend in the same direction, and the second lifting arm is in sliding connection with the first lifting arm; the driving device is connected with the second lifting arm so as to drive the second lifting arm to move in the extending direction of the first lifting arm; and the locking device is used for locking the second lifting arm after the second lifting arm moves to a specified position. The second lifting arm is in sliding connection with the first lifting arm, the extending length of the second lifting arm can be adjusted according to actual conditions, the driving device is used for driving the second lifting arm to move, and the locking device is used for locking and fixing the second lifting arm after the second lifting arm moves in place. The compensator hoisting tool is used for hoisting a steam turbine rotor and a shaft seal compensator at the same time, other auxiliary devices do not need to be additionally arranged, operation procedures are reduced, and resources are saved.

Description

Technical Field

[0001] This disclosure relates to the field of lifting device technology, and more specifically, to a compensator lifting tool. Background Technology

[0002] The rotor hoisting and positioning is a key process in the unit installation. The low-pressure cylinder shaft seal compensator needs to be assembled to the designated position on the rotor simultaneously. In related technologies, the design length of the rotor compensator hoisting tool does not fully consider the installation requirements of the shaft seal compensator. An additional auxiliary crane needs to be called to hoist the shaft seal compensator. The collaboration of multiple devices increases the complexity of the operation process and wastes resources. Summary of the Invention

[0003] The purpose of this disclosure is to provide a compensator hoisting tool that can solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this disclosure provides a compensator hoisting tool, comprising: a first boom for hoisting a turbine rotor; a second boom for hoisting a shaft seal compensator, the second boom extending in the same direction as the first boom and slidably connected to the first boom; a drive device connected to the second boom to drive the second boom to move along the direction of extension of the first boom; and a locking device for locking the second boom after it has moved to a designated position.

[0005] Optionally, the driving device includes a gear, a rack, and a driving member. The rack is disposed on the second boom and extends in the same direction as the second boom. The gear is rotatably connected to the first boom and meshes with the rack. The driving member is used to drive the gear to rotate.

[0006] Optionally, the second boom is an H-beam, the first boom is a cylindrical structure, the first boom is sleeved on the outside of the second boom, the opening of the H-beam faces the horizontal sides, the rack is disposed at the top or bottom of the opening, and the gear is disposed in the opening and meshes with the rack.

[0007] Optionally, the locking device includes a worm gear and a worm, the worm meshing with the worm gear, the worm gear being connected to the gear, and the driving member being connected to the worm.

[0008] Optionally, the second boom is provided with scale lines.

[0009] Optionally, the compensator hoisting tool further includes a hoisting device, a first sling, and a second sling, wherein the first sling connects the first boom and the hoisting device, and the second sling connects the second boom and the hoisting device.

[0010] Optionally, the compensator lifting tool further includes a rope reel, one end of the second sling is connected to the end of the second boom away from the first boom, and the other end passes through the lifting device and is wound around the rope reel. The rope reel is connected to the drive device so that when the drive device moves the second boom, the rope reel rotates simultaneously to release the second sling.

[0011] Optionally, the diameter of the rope reel is larger than the diameter of the gear, so that the length of the second sling released by the rope reel is greater than or equal to the length of the second boom movement.

[0012] Optionally, the compensator hoisting tool further includes a compensation device, which is mounted on the second boom and in contact with the second sling.

[0013] Optionally, the second boom has a strip-shaped hole extending in the same direction as the first boom at one end away from the first boom, and the end of the second sling has a connecting ring that is sleeved with the strip-shaped hole. The compensation device has an elastic element and a pressure block. One end of the elastic element is connected to the end of the strip-shaped hole near the first boom, and the other end is connected to the pressure block. The connecting ring is located on the side of the pressure block away from the first boom.

[0014] Through the above technical solution, the second boom is slidably connected to the first boom, and the extension length of the second boom can be adjusted according to the actual situation. The drive device is used to drive the second boom to move, and the locking device is used to lock and fix the second boom after it moves into place. This disclosure connects the second boom to the first boom to increase the length of the compensator lifting tool, which is used to lift the turbine rotor and the shaft seal compensator at the same time without the need for additional auxiliary devices, reducing the operation process and saving resources.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a structural schematic diagram of the compensator hoisting tool disclosed herein; Figure 2 yes Figure 1 AA section diagram.

[0018] Explanation of reference numerals in the attached figures 1. First boom; 2. Second boom; 21. Slotted hole; 3. Rope reel; 4. First sling; 5. Second sling; 51. Connecting ring; 6. Compensating device; 61. Elastic element; 62. Pressure block; 7. Scale line; 8. Drive device; 81. Gear; 82. Rack; 9. Locking device; 91. Worm gear; 92. Worm; 10. Bracket; 11. Lifting device. Detailed Implementation

[0019] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0020] In this disclosure, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" generally refer to the upper, lower, top, and bottom of the corresponding component in the direction of gravity when in use, while "inner" and "outer" refer to the inner and outer contours relative to the component or structure itself. Furthermore, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same element.

[0021] like Figure 1-2 As shown, this disclosure provides a compensator hoisting tool, including: a first boom 1 for hoisting a turbine rotor; a second boom 2 for hoisting a shaft seal compensator, the second boom 2 extending in the same direction as the first boom 1 and slidably connected to the first boom 1; a drive device 8 connected to the second boom 2 to drive the second boom 2 to move along the direction of extension of the first boom 1; and a locking device 9 for locking the second boom 2 after it has moved to a designated position.

[0022] Through the above technical solution, the second boom 2 is slidably connected to the first boom 1, and the extension length of the second boom 2 can be adjusted according to the actual situation. The drive device 8 is used to drive the second boom 2 to move, and the locking device 9 is used to lock and fix the second boom 2 after it moves into place. This disclosure connects the second boom 2 to the first boom 1 to increase the length of the compensator lifting tool, which is used to lift the turbine rotor and the shaft seal compensator at the same time without the need for additional auxiliary devices, reducing the operation process and saving resources.

[0023] As an optional implementation method, such as Figure 2As shown, the drive device 8 includes a gear 81, a rack 82, and a drive member. The rack 82 is mounted on the second boom 2 and extends in the same direction as the second boom 2. The gear 81 is rotatably connected to the first boom 1 and meshes with the rack 82, for example, through a bearing. The drive member is used to drive the gear 81 to rotate. The gear 81 meshes with the rack 82, thereby driving the rack 82 and the second boom 2 to move along their extension direction.

[0024] Optionally, such as Figure 2 As shown, the second boom 2 is constructed as an H-beam to ensure the load-bearing capacity of the tool. The first boom 1 is constructed as a cylindrical structure and is sleeved on the outside of the second boom 2. The opening of the H-beam faces the horizontal sides. The rack 82 is set at the top or bottom of the opening. The gear 81 is set in the opening and meshes with the rack 82. The gear 81 and the rack 82 are set inside the H-beam to reduce the space occupied.

[0025] Optionally, such as Figure 2 As shown, the locking device 9 includes a worm gear 91 and a worm 92. The worm 92 meshes with the worm gear 91, and the worm gear 91 is connected to the gear 81. The driving component is connected to the worm gear 92. The worm gear 91 and the gear 81 are arranged in parallel. The driving component drives the worm gear 91 to rotate through the worm gear 92, and the worm gear 91 drives the gear 81 to rotate. The worm gear 91 and worm 92 have a self-locking function to position and lock the second boom 2, preventing the second boom 2 from moving horizontally during operation. The driving component can be a drive motor or a hand chain hoist. The drive motor can be fixedly connected to the bracket 10 or the first boom 1.

[0026] As an optional implementation method, such as Figure 1 As shown, the second boom 2 is equipped with scale lines 7 to ensure that the extension and retraction length of the second boom 2 can be precisely controlled, and to avoid affecting the hoisting posture or installation accuracy of the turbine rotor and shaft seal compensator due to length deviation.

[0027] As an optional implementation method, such as Figure 1 As shown, the compensator hoisting tool also includes a hoisting device 11, a first sling 4, and a second sling 5. The first sling 4 connects the first boom 1 and the hoisting device 11, and the second sling 5 connects the second boom 2 and the hoisting device 11. The hoisting device 11 can be a lifting equipment or a hook, etc. The first sling 4 and the second sling 5 are respectively connected to the first boom 1 and the second boom 2, forming a triangular connection structure to ensure hoisting stability.

[0028] Optionally, such as Figure 1-2As shown, the compensator lifting tool also includes a rope reel 3. One end of the second sling 5 is connected to the end of the second boom 2 away from the first boom 1, and the other end passes through the lifting device 11 and is wound around the rope reel 3. The rope reel 3 is connected to the drive device 8 so that when the drive device 8 moves the second boom 2, the rope reel 3 rotates simultaneously to release the second sling 5. Since the first boom 1 can move, the length of the second sling 5 also needs to be adjusted. One end of the second sling 5 is wound around the rope reel 3. When the drive device 8 moves the second boom 2, it also drives the rope reel 3 to rotate. In this way, when the second boom 2 extends, the rope reel 3 can release the second sling 5 at the same time. When the second boom 2 retracts, the rope reel 3 can retract the second sling 5, ensuring that the lifting length of the second sling 5 changes constantly with the movement of the second boom 2.

[0029] Optionally, such as Figure 2 As shown, a bracket 10 can be set on the outside of the first boom 1 for mounting the drive device 8, the locking device 9 and the rope reel 3. The worm gear 91, the rope reel 3 and the gear 81 are connected by a connecting shaft. The connecting shaft is rotatably connected to the bracket 10, for example, by a bearing. The bracket 10 can be provided with multiple vertical support ends.

[0030] Optionally, such as Figure 2 As shown, the diameter of the rope disc 3 is greater than the diameter of the gear 81, so that the length of the second sling 5 released by the rope disc 3 is greater than or equal to the length of the movement of the second boom 2. The second boom 2 moves in a straight line, and there is an angle between the second sling 5 and the second boom 2. Therefore, the length of the second sling 5 that needs to be released is greater than the distance the second boom 2 moves. So the diameter of the rope disc 3 needs to be greater than the diameter of the gear 81.

[0031] Optionally, such as Figure 1 As shown, the compensator hoisting tool also includes a compensation device 6. The compensation device 6 is set on the second boom 2 and contacts the second sling 5. Because the second sling 5 is wound in circles on the rope reel 3, as the second sling 5 is released, the outer diameter of the winding of the second sling 5 on the rope reel 3 will become smaller and smaller, which will cause an error with the length of the second boom 2. The compensation device 6 is used to compensate for this error and ensure that the length of the second sling 5 released corresponds to the distance the second boom 2 moves.

[0032] Optionally, such as Figure 1As shown, the second boom 2 has a strip hole 21 extending in the same direction as the first boom 1 at one end opposite to the second boom 2. The end of the second sling 5 has a connecting ring 51, which is sleeved with the strip hole 21. The compensation device 6 has an elastic element 61 and a pressure block 62. One end of the elastic element 61 is connected to the end of the strip hole 21 near the first boom 1, and the other end is connected to the pressure block 62. The connecting ring 51 is located on the side of the pressure block 62 opposite to the first boom 1. As the diameter of the second sling 5 winding on the rope reel 3 becomes smaller, the length released by the second sling 5 when the rope reel 3 rotates by the same angle will be shortened. At this time, the connecting ring 51 will move along the strip hole 21 towards the second boom 2. The elastic element 61 and the pressure block 62 abut against the connecting ring 51 to ensure the tension of the connecting ring 51 and to reset the connecting ring 51.

[0033] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0034] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0035] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A compensator hoisting tool, characterized in that, include: The first boom is used to lift the turbine rotor; The second boom is used to lift the shaft seal compensator. The second boom extends in the same direction as the first boom and is slidably connected to the first boom. A drive unit is connected to the second boom to drive the second boom to move along the direction in which the first boom extends; as well as A locking device is used to lock the second boom after it has been moved to a designated position.

2. The compensator hoisting tool according to claim 1, characterized in that, The driving device includes a gear, a rack, and a driving component. The rack is mounted on the second boom and extends in the same direction as the second boom. The gear is rotatably connected to the first boom and meshes with the rack. The driving component is used to drive the gear to rotate.

3. The compensator hoisting tool according to claim 2, characterized in that, The second boom is an H-shaped beam, and the first boom is a cylindrical structure. The first boom is sleeved on the outside of the second boom. The opening of the H-shaped beam faces the horizontal sides. The rack is located at the top or bottom of the opening, and the gear is located in the opening and meshes with the rack.

4. The compensator hoisting tool according to claim 2, characterized in that, The locking device includes a worm gear and a worm, the worm meshing with the worm gear, the worm gear being connected to the gear, and the driving component being connected to the worm.

5. The compensator hoisting tool according to claim 1, characterized in that, The second boom is equipped with scale lines.

6. The compensator hoisting tool according to claim 2, characterized in that, The compensator hoisting tool also includes a hoisting device, a first sling and a second sling, the first sling connecting the first boom and the hoisting device, and the second sling connecting the second boom and the hoisting device.

7. The compensator hoisting tool according to claim 6, characterized in that, The compensator hoisting tool also includes a rope reel. One end of the second sling is connected to the end of the second boom away from the first boom, and the other end passes through the hoisting device and is wound around the rope reel. The rope reel is connected to the drive device so that when the drive device moves the second boom, the rope reel rotates simultaneously to release the second sling.

8. The compensator hoisting tool according to claim 7, characterized in that, The diameter of the rope reel is larger than the diameter of the gear, so that the length of the second sling released by the rope reel is greater than or equal to the length of the second boom movement.

9. The compensator hoisting tool according to claim 8, characterized in that, The compensator hoisting tool also includes a compensation device, which is mounted on the second boom and in contact with the second sling.

10. The compensator hoisting tool according to claim 9, characterized in that, The second boom has a strip-shaped hole extending in the same direction as the first boom at one end away from the first boom. The end of the second sling has a connecting ring, which is sleeved with the strip-shaped hole. The compensation device has an elastic element and a pressure block. One end of the elastic element is connected to the end of the strip-shaped hole near the first boom, and the other end is connected to the pressure block. The connecting ring is located on the side of the pressure block away from the first boom.

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